A spraying device for injection mold release agent

Abstract

The utility model discloses a kind of injection mold release agent's spraying devices, it is related to spraying device field, and its technical solution main point is: including base, the top center part of base is equipped with the center rotating component of driving its rotation after being fixed to injection mold, the top center part of base is connected with release agent tank through moving component in center rotating component side portion, and release agent tank is moved to appropriate position by moving component and is fixed;The surface opposite release agent tank and center rotating component is connected by multiple material conveying pipes and spray head, multiple spray heads are vertically arrayed relative to release agent tank, and pressurizing pump and solenoid valve are all set on material conveying pipe, and the feed inlet of multiple material conveying pipes all extends to the bottom in release agent tank, and the effect is that spray head and injection mold distance are flexibly adjusted by independent moving component, and spray head opening quantity is controlled as needed, both avoid that due to distance improper influence spraying effect, and prevent the waste of release agent.

Description

Technical Field

[0001] This utility model relates to the field of spraying devices, and more specifically, it relates to a spraying device for an injection mold release agent. Background Technology

[0002] In the production process of injection molds, to ensure the quality of plastic products and demolding efficiency, it is necessary to uniformly spray a release agent onto the mold surface. This is because during injection molding, the molten plastic adheres tightly to the mold surface under high temperature and pressure. If the release agent is not sprayed evenly, it will cause uneven stress on the plastic product during demolding, resulting in appearance defects such as scratches and deformation, affecting product quality. At the same time, local adhesion will increase demolding resistance, not only prolonging demolding time and reducing production efficiency, but also potentially causing wear on the mold surface due to forced demolding, shortening the mold's service life.

[0003] Traditional spraying methods rely mainly on manual operation, resulting in uneven spraying and low efficiency. While existing automated spraying equipment can improve spraying efficiency, the spray tank and nozzles are generally mounted on rotating components that rotate around the injection mold. Due to load-bearing considerations, there are almost no moving structures on these components. Consequently, it is impossible to adjust the distance between the nozzles and the molds according to different mold sizes. This leads to improper distances affecting the spraying effect for different molds. In addition, the nozzles are generally controlled as a whole (to accommodate different mold sizes, too many nozzles are usually designed). When the device is turned on, all nozzles are running. If the injection mold is too small, waste can easily occur.

[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a spraying device for injection mold release agent. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a spraying device for injection mold release agent.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a spraying device for a release agent for injection molds, comprising a base, wherein a central rotating component is installed at the top center of the base to fix the injection mold and drive it to rotate, and the top of the base is connected to the release agent can via a moving component at the part next to the central rotating component, wherein the release agent can be moved to a suitable position and fixed thereon via the moving component;

[0007] The mold release agent tank is connected to the nozzles via multiple feed pipes on the surface opposite to the central rotating assembly. The multiple nozzles are arranged in a vertical array relative to the mold release agent tank. Each feed pipe is equipped with a pressure pump and a solenoid valve, and the inlets of the multiple feed pipes extend to the bottom of the mold release agent tank.

[0008] Preferably, the central rotating assembly includes a motor fixed at the center of the top of the base, and the output shaft of the motor is connected to the turntable through a reducer. The top of the turntable is equipped with an electric magnetic suction device for fixing the injection mold and powered by a built-in battery.

[0009] Preferably, the nozzle is an atomizing nozzle.

[0010] Preferably, the moving component includes a guide rail A fixed to the top of the base next to the central rotating component, and a fixing component for fixing the release agent can. The top of the guide rail A is connected to the release agent can via a slider A.

[0011] Preferably, the fixing component includes a connecting block fixed to the top of the base. The top of the connecting block has multiple circular grooves arranged in a horizontal array. The side end of the release agent can is connected to a cylindrical shell with a bottom opening via a connecting plate. Multiple springs are arranged in a circumferential array on the inner top wall of the cylindrical shell. A lifting plate is fixedly connected to the bottom end of each spring. A cylinder that can be inserted into the circular groove is welded onto the lifting plate. A circular through slot is opened at the top of the cylindrical shell. A pull rod that can pass through the circular through slot is fixedly connected to the center of the top of the lifting plate, and a handle is installed at the top of the pull rod.

[0012] Preferably, guide rails B are fixedly connected to both sides of the interior of the cylindrical shell, and the two sides of the lifting plate are slidably connected to the guide rails B via sliders B.

[0013] Preferably, the mold release agent tank is connected to the vertical plate via a connecting rod on the surface opposite to the central rotating assembly, and the nozzle is embedded in the vertical plate.

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

[0015] This utility model differs from traditional automated spraying equipment, which places the spraying agent tank and nozzle on a rotating component and lacks a moving structure. This device flexibly adjusts the distance between the nozzle and the injection mold through an independent moving component and controls the number of nozzles opened as needed. This avoids the spraying effect being affected by improper distance and prevents the waste of release agent, thus solving the problems in the background technology.

[0016] This utility model uses a vertical plate to strengthen and fix the nozzle. The embedded design can effectively prevent the nozzle from loosening due to vibration during the adjustment of the moving components or the operation of the spraying device, ensuring a stable connection between the nozzle and the material delivery pipe and preventing release agent leakage.

[0017] In this invention, the nozzle is an atomizing nozzle, and the spraying positions of each nozzle have overlapping areas. The atomizing nozzle can disperse the release agent into fine droplets, so that the release agent adheres to the mold surface in a more uniform state, avoiding phenomena such as sagging and accumulation, and ensuring the smoothness and consistency of the coating. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This utility model Figure 1 Enlarged view of the local structure of A;

[0021] Figure 3 This utility model Figure 1 Enlarged view of the local structure of B;

[0022] Figure 4 This utility model Figure 1 Another perspective on the specific structure;

[0023] Figure 5 This is a schematic diagram of the specific structure of the bottom of the cylindrical shell in this utility model;

[0024] Figure 6 For the present utility model in Figure 5 The diagram shows the specific structure after removing the lifting plate and the cylinder.

[0025] In the picture: 1. Base;

[0026] 2. Central rotating assembly; 201. Motor; 202. Reducer; 203. Turntable; 204. Electric magnetic attraction device;

[0027] 3. Moving components; 301. Guide rail A; 302. Slider A; 303. Fixing components; 30301. Connecting block; 30302. Circular groove; 30303. Connecting plate; 30304. Cylindrical shell; 30305. Spring; 30306. Lifting plate; 30307. Cylinder; 30308. Circular through slot; 30309. Pull rod; 30310. Guide rail B; 30311. Slider B; 30312. Handle;

[0028] 4. Release agent tank; 5. Material delivery pipe; 6. Nozzle; 7. Pressure pump; 8. Solenoid valve; 9. Connecting rod; 10. Vertical plate. Detailed Implementation

[0029] like Figure 1-6 As shown, this utility model provides a spraying device for injection mold release agent, including a base 1. A central rotating component 2 is installed at the top center of the base 1 to fix the injection mold and drive it to rotate. The top of the base 1 is connected to the release agent tank 4 next to the central rotating component 2 through a moving component 3. The release agent tank 4 is moved to a suitable position and fixed by the moving component 3.

[0030] The mold release agent tank 4 is connected to the nozzles 6 via multiple feed pipes 5 on the surface opposite to the central rotating assembly 2. The nozzles 6 are arranged in a vertical array relative to the mold release agent tank 4. Each feed pipe 5 is equipped with a pressure pump 7 and a solenoid valve 8. The inlets of the multiple feed pipes 5 extend to the bottom of the mold release agent tank 4. The injection mold is vertically fixed on the central rotating assembly 2, which drives its rotation. The distance between the nozzles 6 and the mold release agent tank 4 is moved by the moving assembly 3. The number of nozzles 6 that open can be controlled by using injection molds of different sizes.

[0031] The working principle of this utility model is as follows: In use, the injection mold is first erected and fixed on the central rotating component 2 at the top center of the base 1. According to the size of the injection mold, the position of the release agent tank 4 is adjusted by moving component 3, thereby changing the distance between the vertically arrayed nozzles 6 and the injection mold, ensuring that the nozzles 6 are in a suitable spraying position. Since each nozzle 6 is controlled by a pressure pump 7 and a solenoid valve 8, the corresponding solenoid valve 8 can be opened by the controller according to the spraying requirements of the height of the injection mold (the nozzles 6 at the top can be left closed if the height of the mold is too low). Then, the pressure pump 7 on the corresponding feed pipe 5 is started to pressurize and deliver the release agent in the release agent tank 4 to the nozzles 6 for spraying. At the same time, the central rotating component 2 drives the injection mold to rotate, so that the release agent sprayed by the nozzles 6 can evenly cover the surface of the mold. Unlike traditional automated spraying equipment that places the spray agent tank and nozzle 6 on a rotating assembly and lacks a moving structure, this device uses an independent moving assembly 3 to flexibly adjust the distance between the nozzle 6 and the injection mold, and controls the number of nozzles 6 that open as needed. This avoids affecting the spraying effect due to improper distance and prevents waste of release agent. The nozzle 6 is an atomizing nozzle, and the spraying positions of each nozzle 6 have overlapping areas. The atomizing nozzle can disperse the release agent into fine droplets, allowing the release agent to adhere to the mold surface in a more uniform state, avoiding phenomena such as sagging and accumulation, and ensuring the smoothness and consistency of the coating. The overlapping design of the spraying positions can effectively eliminate spraying blind spots and ensure that the surface of the injection mold is well covered by the release agent.

[0032] The following is the specific structure of the central rotating assembly 2: The central rotating assembly 2 includes a motor 201 fixed at the center of the top of the base 1, and the output shaft of the motor 201 is connected to the turntable 203 through a reducer 202. The top of the turntable 203 is equipped with an electric magnetic suction device 204 that fixes the injection mold and is powered by a built-in battery.

[0033] The following is the specific structure of the moving component 3: The moving component 3 includes a guide rail A301 fixed to the top of the base 1 next to the central rotating component 2, and a fixing component 303 for fixing the release agent can 4. The top of the guide rail A301 is connected to the release agent can 4 via a slider A302. The fixing component 303 includes a connecting block 30301 fixed to the top of the base 1. The top of the connecting block 30301 has multiple circular grooves 30302 arranged in a horizontal array. The side end of the release agent can 4 is connected to a cylindrical shell 30304 with a bottom opening via a connecting plate 30303. The inner top wall of the cylindrical shell 30304 is provided with multiple grooves arranged in a circumferential array. A spring 30305 has a lifting plate 30306 fixedly connected to its bottom end. A cylinder 30307 that can be inserted into a circular groove 30302 is welded onto the lifting plate 30306. A circular through groove 30308 is opened at the top of the cylindrical shell 30304. A pull rod 30309 that can pass through the circular through groove 30308 is fixedly connected to the center of the top of the lifting plate 30306, and a handle is installed at the top of the pull rod 30309. Guide rails B30310 are fixedly connected to both sides of the interior of the cylindrical shell 30304. The two sides of the lifting plate 30306 are slidably connected to the guide rails B30310 through sliders B30311.

[0034] When this spraying device is in operation, the injection mold is first placed on the top of the turntable 203. The electric magnetic suction device 204 is then activated, powered by the built-in battery to generate magnetic force (thus eliminating the need for a power cord; only periodic charging of the battery is required), firmly adsorbing and fixing the mold. Then, depending on the size of the injection mold, the operator holds the handle 30312 at the top of the pull rod 30309 and pulls it upwards. This causes the lifting plate 30306 to rise within the cylindrical shell 30304, overcoming the elastic force of the spring 30305. This disengages the cylinder 30307 from the circular groove 30302 on the connecting block 30301, releasing the mold release agent tank 4 from its fixed position. At this point, the mold release agent tank 4 can be moved laterally, causing the slider A302 to move along the guide rail A301. Once adjusted to the appropriate position, the handle 30312 is released, and the spring 30305 pushes the lifting plate 30306 and the cylinder 30307 downwards, allowing the cylinder 30307 to re-insert. Corresponding to the circular groove 30302, the operation is replaced by pulling the handle 30312, which is very convenient. This achieves stable fixation of the mold release agent can 4, ensuring that the nozzle 6 maintains a suitable spraying distance from the injection mold surface. When the lifting plate 30306 moves up and down, it will drive the slider B30311 to move up and down. The slider B30311 slides up and down along the guide rail B30310 to maintain the vertical linear movement of the lifting plate 30306 and prevent it from tilting, which would prevent the cylinder 30307 from being inserted into the circular groove 30302 smoothly. In addition, the tilting of the lifting plate 30306 will also cause the spring 30305 to be pulled obliquely and damaged.

[0035] Next, the motor 201 is started. After the output shaft of the motor 201 is reduced in speed and increased in torque by the reducer 202, it drives the turntable 203 to rotate smoothly, which in turn drives the injection mold fixed on it to rotate synchronously. At the same time, according to the height of the injection mold and the spraying requirements, the corresponding solenoid valve 8 is opened by the controller, and then the pressurizing pump 7 on the corresponding material delivery pipe 5 is started to pressurize and deliver the release agent in the release agent tank 4 to the nozzle 6 for spraying. The vertically arrayed nozzles 6 with intersecting spraying areas atomize and spray the release agent, achieving uniform coverage spraying during the rotation of the mold.

[0036] Furthermore, the mold release agent tank 4 is connected to the vertical plate 10 via a connecting rod 9 on the surface opposite to the central rotating component 2. The nozzle 6 is embedded in the vertical plate 10, which can strengthen and fix the nozzle 6. The embedded design can effectively prevent the nozzle 6 from loosening due to vibration during the adjustment of the position of the moving component 3 or the operation of the spraying device, ensuring a stable connection between the nozzle 6 and the delivery pipe 5 and preventing mold release agent leakage. In this way, even if the delivery pipe 5 uses a flexible hose, the position of the nozzle 6 can be reliably maintained.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A spraying device for an injection mold release agent, characterized in that: Includes a base (1), the top center of which is equipped with a central rotating component (2) for fixing the injection mold and then driving it to rotate. The top of the base (1) is connected to the mold release agent tank (4) via a moving component (3) next to the central rotating component (2). The mold release agent tank (4) is moved to a suitable position and fixed by the moving component (3). The mold release agent tank (4) is connected to the nozzle (6) via multiple feed pipes (5) on the surface opposite to the central rotating component (2). The multiple nozzles (6) are arranged in a vertical array relative to the mold release agent tank (4). Each feed pipe (5) is equipped with a pressure pump (7) and a solenoid valve (8). The inlets of the multiple feed pipes (5) extend to the bottom of the mold release agent tank (4).

2. The spraying device for injection mold release agent according to claim 1, characterized in that: The central rotating assembly (2) includes a motor (201) fixed at the center of the top of the base (1), and the output shaft of the motor (201) is connected to the turntable (203) through a reducer (202). The top of the turntable (203) is equipped with an electric magnetic suction device (204) for fixing the injection mold and powered by a built-in battery.

3. The spraying device for injection mold release agent according to claim 1, characterized in that: The nozzle (6) is an atomizing nozzle.

4. The spraying device for injection mold release agent according to claim 1, characterized in that: The moving component (3) includes a guide rail A (301) fixed at the top of the base (1) next to the central rotating component (2) and a fixing component (303) for fixing the release agent tank (4). The top of the guide rail A (301) is connected to the release agent tank (4) via a slider A (302).

5. The spraying device for injection mold release agent according to claim 4, characterized in that: The fixing component (303) includes a connecting block (30301) fixed to the top of the base (1). The top of the connecting block (30301) has multiple circular grooves (30302) arranged in a horizontal array. The side end of the release agent can (4) is connected to a cylindrical shell (30304) with a bottom opening through a connecting plate (30303). The inner top wall of the cylindrical shell (30304) is provided with multiple springs (30305) arranged in a circumferential array. 5) The bottom end is fixedly connected to a lifting plate (30306), and the lifting plate (30306) is welded with a cylinder (30307) that can be inserted into a circular groove (30302). The top end of the cylindrical shell (30304) is provided with a circular through groove (30308). The center of the top end of the lifting plate (30306) is fixedly connected to a pull rod (30309) that can pass through the circular through groove (30308), and a handle is installed at the top end of the pull rod (30309).

6. The spraying device for injection mold release agent according to claim 5, characterized in that: The cylindrical shell (30304) has guide rails B (30310) fixedly connected to both sides inside, and the lifting plate (30306) is slidably connected to the guide rails B (30310) on both sides by sliders B (30311).

7. The spraying device for injection mold release agent according to claim 1, characterized in that: The mold release agent tank (4) is connected to the vertical plate (10) on the surface opposite to the central rotating assembly (2) via a connecting rod (9), and the nozzle (6) is embedded in the vertical plate (10).

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