Multi-color injection precision color changing valve for tableware

Abstract

The utility model discloses a tableware multicolor injection precision color changing valve relates to tableware injection equipment technical field, including base, the inside installation of base has three groups of valve body, the bottom of valve body is equipped with the drainage mechanism in the inside of base, the oil inlet end of valve body is installed with processing cylinder, the inside rotatory mounting of processing cylinder has connecting rod, the bottom end of connecting rod is installed with rotary vane, the outside installation of rotary vane has filter bowl, the utility model discloses a processing cylinder, connecting rod, rotary vane and filter bowl cooperation uses, when the molten color material fluid enters processing cylinder, the pressure and flow rate of fluid will impact rotary vane, drives connecting rod to drive rotary vane to rotate around the central axis, because the outer wall of rotary vane is connected with the inner wall of filter bowl, and rotary vane rotates and will drive filter bowl high -speed rotation simultaneously, and the impurity such as metal scrap in fluid is thrown to the inner wall of filter bowl and is intercepted through centrifugal force, avoids the impurity to enter the inside of valve body, thereby will not influence the normal work of valve body.

Description

Technical Field

[0001] This utility model relates to the technical field of tableware injection molding equipment, specifically a precision color-changing valve for multi-color injection molding of tableware. Background Technology

[0002] Tableware is a non-edible tool that comes into direct contact with food during meals and is used to assist in the distribution or consumption of food. When tableware is produced in multi-color injection molding, a color-changing valve is required to change the injection color.

[0003] Color-changing valves can switch the colors of tableware during multi-color injection molding. However, in the use of existing color-changing valves, if paint or pigments containing impurities enter the valve body through the oil inlet pipe, these impurities, including hard lumps formed by insufficient pigment grinding and metal debris from pipe corrosion, can directly invade the valve body with the fluid. Hard lumps and metal debris can easily jam the precision mating surface of the solenoid valve core, causing the valve core to switch slowly or get stuck, which will affect the normal operation of the valve body and thus be detrimental to personnel use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention provides a precision color-changing valve for multi-color injection molding of tableware, aiming to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-color injection molding precision color-changing valve for tableware, comprising a base, three sets of valve bodies installed inside the base, a flow guiding mechanism provided inside the base near the bottom of the valve bodies, a processing cylinder installed at the oil inlet end of the valve bodies, a connecting rod rotatably installed inside the processing cylinder, a rotating blade installed at the bottom end of the connecting rod, a filter cylinder installed on the outer side of the rotating blade, and the outer wall of the rotating blade connected to the inner wall of the filter cylinder.

[0008] As a preferred technical solution of this application, an injection hole is provided inside the processing cylinder near the top of the filter cylinder.

[0009] As a preferred technical solution of this application, the inner top of the processing cylinder is provided with a guide groove, and a filter cylinder is connected inside the guide groove.

[0010] As a preferred technical solution of this application, the processing cylinder is provided with a discharge pipe near the bottom of the filter cylinder, and a plug is installed on the outer side of the bottom of the discharge pipe.

[0011] As a preferred technical solution of this application, the valve body further includes a solenoid valve disposed at the top, an oil inlet pipe is installed on one side of the solenoid valve, a processing cylinder is connected to one end of the solenoid valve, and a return oil pipe is installed on the side of the solenoid valve away from the oil inlet pipe.

[0012] As a preferred technical solution of this application, the drainage mechanism includes a main channel that runs through the inside of the base, and an oil outlet pipe is installed at one end of the base near the main channel.

[0013] As a preferred technical solution of this application, the base has two sets of fixing holes on both sides, and the two sets of fixing holes are symmetrically distributed.

[0014] (III) Beneficial Effects

[0015] 1. This utility model uses a processing cylinder, connecting rod, rotating blades, and filter cylinder in combination. When the molten pigment fluid enters the processing cylinder, the pressure and velocity of the fluid will impact the rotating blades, driving the connecting rod to rotate the rotating blades around the central axis. Since the outer wall of the rotating blades is connected to the inner wall of the filter cylinder, the rotating blades will synchronously drive the filter cylinder to rotate at high speed. Through centrifugal force, impurities in the fluid, such as metal fragments, are thrown to the inner wall of the filter cylinder for interception, preventing impurities from entering the valve body and thus not affecting the normal operation of the valve body, which is beneficial to personnel.

[0016] 2. This utility model uses a discharge pipe and a plug together. During normal operation, the plug seals the discharge pipe with threads to prevent fluid leakage. Later, by loosening the plug, impurities can be discharged from the discharge pipe under their own weight and the flushing of residual fluid, which facilitates later operation and maintenance by personnel. Attached Figure Description

[0017] Figure 1 This is a front perspective view of the present utility model;

[0018] Figure 2 This is a top perspective view of the present invention;

[0019] Figure 3 This is a side perspective view of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the processing cylinder part of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the filter cartridge part of this utility model.

[0022] In the diagram: 1. Base; 101. Fixing hole; 2. Valve body; 201. Solenoid valve; 202. Oil inlet pipe; 203. Oil return pipe; 3. Drainage mechanism; 301. Main channel; 302. Oil outlet pipe; 4. Processing cylinder; 401. Connecting rod; 402. Rotating blade; 403. Filter cartridge; 5. Injection hole; 6. Guide groove; 7. Discharge pipe; 701. Plug. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments;

[0025] Example:

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Please refer to the accompanying drawings. Figures 1 to 5 This application provides a precision color-changing valve for multi-color injection molding of tableware; please refer to it carefully. Figure 1 , Figure 2 , Figure 3 and Figure 4 The system includes a base 1, inside which three sets of valve bodies 2 are installed. Inside the base 1, near the bottom of the valve bodies 2, there is a flow guiding mechanism 3. At the oil inlet end of the valve body 2, there is a processing cylinder 4. Inside the processing cylinder 4, a connecting rod 401 is rotatably installed. At the bottom end of the connecting rod 401, there is a rotating blade 402. On the outside of the rotating blade 402, there is a filter cartridge 403. The outer wall of the rotating blade 402 is connected to the inner wall of the filter cartridge 403.

[0027] Specifically, when the molten pigment fluid enters the processing cylinder 4, the pressure and flow rate of the fluid impact the rotating blade 402, driving the connecting rod 401 to rotate the rotating blade 402 around the central axis. Since the outer wall of the rotating blade 402 is connected to the inner wall of the filter cylinder 403, the rotating blade 402 will synchronously drive the filter cylinder 403 to rotate at high speed. Through centrifugal force, impurities such as metal fragments in the fluid are thrown to the inner wall of the filter cylinder 403 for interception, preventing impurities from entering the valve body 2. The fluid purified by the processing cylinder 4 enters the valve body 2. The valve body 2 controls the flow channel opening and closing according to the injection molding requirements, while the flow guiding mechanism 3 at the bottom of the base 1 can transport the pigment fluid. Each set of valve bodies 2 transports different colors of pigment. When it is necessary to switch pigments, the three sets of valve bodies 2 open and close in sequence according to the preset program to complete the color change.

[0028] Please refer to this carefully. Figure 2 and Figure 4 An injection hole 5 is provided inside the processing cylinder 4 near the top of the filter cylinder 403.

[0029] Please refer to this carefully. Figure 5 The top of the inner part of the treatment cylinder 4 is provided with a guide groove 6, and the filter cylinder 403 is connected inside the guide groove 6.

[0030] Please refer to this carefully. Figure 4 The bottom of the treatment cylinder 4 near the filter cylinder 403 is provided with a discharge pipe 7, and a plug 701 is installed on the outside of the bottom of the discharge pipe 7.

[0031] Specifically, to improve filtration efficiency and ease of maintenance, during normal operation, the pigment fluid can be directly delivered to the interior of the filter cartridge 403 through the injection hole 5 to enhance the impact force on the rotating blades 402 and increase the rotation speed. The guide groove 6 at the top of the processing cylinder 4 is an annular T-shaped groove. The flange at the top of the filter cartridge 403 is embedded in the guide groove 6 to form a sliding fit. When the rotating blades 402 drive the filter cartridge 403 to rotate at high speed, the guide groove 6 can limit the radial runout of the filter cartridge 403 and prevent the filter cartridge 403 from rubbing against the inner wall of the processing cylinder 4. The discharge pipe 7 at the bottom of the processing cylinder 4 is located directly below the filter cartridge 403 and can collect impurities that settle due to gravity when the filter cartridge 403 rotates. During normal operation, the plug 701 seals the discharge pipe 7 through threads to prevent fluid leakage. Later, by loosening the plug 701, the impurities can be discharged from the discharge pipe 7 under their own weight and the flushing of the residual fluid.

[0032] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The valve body 2 also includes a solenoid valve 201 located at the top. An oil inlet pipe 202 is installed on one side of the solenoid valve 201. A processing cylinder 4 is connected to one end of the solenoid valve 201. A return pipe 203 is installed on the side of the solenoid valve 201 away from the oil inlet pipe 202.

[0033] Please refer to this carefully. Figure 1 and Figure 3 The drainage mechanism 3 includes a main channel 301 that runs through the inside of the base 1, and an oil outlet pipe 302 is installed at one end of the base 1 near the main channel 301.

[0034] Please refer to this carefully. Figure 1 The base 1 has two sets of fixing holes 101 on both sides, and the two sets of fixing holes 101 are symmetrically distributed.

[0035] Specifically, in order to transport the pigment fluid, the three sets of valve bodies 2 serve as the core control unit for color changing. The solenoid valve 201 of the valve body controls the opening and closing of the oil circuit through an electrical signal. The pigment fluid, after being filtered and purified by the processing cylinder 4, enters the solenoid valve 201 through the oil inlet pipe 202. When the solenoid valve 201 is energized, it opens the corresponding flow channel and guides the fluid into the pigment channel inside the valve body 2. The redundant fluid that does not participate in the injection molding, such as the residual oil in the color changing gap, flows back to the oil tank through the return oil pipe 203. The main channel 301 that runs through the inside of the base 1 transports the pigment output from the valve body 2. The oil outlet pipe 302 connected to the end of the main channel 301 is connected to the nozzle of the injection molding machine to inject the pigment fluid into the mold. The two sets of fixing holes 101 symmetrically distributed on both sides of the base 1 are rigidly connected to the injection molding machine worktable by bolts.

[0036] Working principle: Molten pigment enters the filter cartridge 403 through the injection hole 5 of the processing cylinder 4. The fluid pressure and flow rate impact the rotating blade 402, driving the connecting rod 401 to drive the rotating blade 402 and the filter cartridge 403 to rotate synchronously at high speed. The filter cartridge 403 generates centrifugal force during rotation, throwing impurities such as metal fragments and polymer coke in the pigment towards the inner wall for interception. The annular T-shaped guide groove 6 at the top of the processing cylinder 4, through the sliding fit of the top flange of the filter cartridge 403, restricts its radial runout. During filtration, some gravity-sedimented impurities fall into the discharge pipe 7 directly below the filter cartridge 403. Under normal operation, the plug 701 is sealed by threads. During periodic maintenance, the plug 701 is loosened, and the impurities are discharged under their own weight and the flushing of residual fluid, ensuring continuous and efficient filtration by the filter cartridge 403. The pigment purified by the filter cartridge 403 enters the three sets of valve bodies. 2. Each valve body 2 corresponds to a color. The pigment flows into the solenoid valve 201 through the oil inlet pipe 202. The solenoid valve 201 receives an electrical signal to control the flow channel opening and closing, guiding the corresponding pigment into the dedicated channel inside the valve body 2. During color change intervals or when there is excess pigment that has not participated in injection molding, such as residual oil, it flows back to the oil tank through the oil return pipe 203. The pigment output from the valve body 2 is transported through the main channel 301 inside the base 1 and is connected to the injection molding machine nozzle through the oil outlet pipe 302, precisely injected into the mold cavity. When it is necessary to switch colors, the three sets of solenoid valves 201 open and close sequentially according to a preset program. The solenoid valve 201 corresponding to the previous color closes, and the excess pigment is discharged through the oil return pipe 203. The solenoid valve 201 corresponding to the next color opens, and the new pigment quickly fills through the main channel 301, pushing the residual old pigment to the oil outlet pipe 302, thus achieving color-separation without mixing.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-color injection molding precision color-changing valve for tableware, comprising a base (1), characterized in that: The base (1) is equipped with three sets of valve bodies (2). The base (1) is equipped with a flow guiding mechanism (3) near the bottom of the valve body (2). The oil inlet end of the valve body (2) is equipped with a processing cylinder (4). The processing cylinder (4) is rotatably installed inside the processing cylinder (4). The bottom end of the connecting rod (401) is equipped with a rotating blade (402). The outer side of the rotating blade (402) is equipped with a filter cylinder (403). The outer wall of the rotating blade (402) is connected to the inner wall of the filter cylinder (403).

2. The multi-color injection molding precision color-changing valve for tableware according to claim 1, characterized in that: The processing cylinder (4) has an injection hole (5) located inside the top of the filter cylinder (403).

3. The multi-color injection molding precision color-changing valve for tableware according to claim 2, characterized in that: The top of the processing cylinder (4) is provided with a guide groove (6), and a filter cylinder (403) is connected inside the guide groove (6).

4. The multi-color injection molding precision color-changing valve for tableware according to claim 3, characterized in that: The processing cylinder (4) has a discharge pipe (7) near the bottom of the filter cylinder (403), and a plug (701) is installed on the outside of the bottom of the discharge pipe (7).

5. The multi-color injection molding precision color-changing valve for tableware according to claim 1, characterized in that: The valve body (2) also includes a solenoid valve (201) located at the top. An oil inlet pipe (202) is installed on one side of the solenoid valve (201), and a processing cylinder (4) is connected to one end of the solenoid valve (201). A return oil pipe (203) is installed on the side of the solenoid valve (201) away from the oil inlet pipe (202).

6. The multi-color injection molding precision color-changing valve for tableware according to claim 5, characterized in that: The drainage mechanism (3) includes a main channel (301) that runs through the inside of the base (1), and an oil outlet pipe (302) is installed at one end of the base (1) near the main channel (301).

7. A multi-color injection molding precision color-changing valve for tableware according to claim 6, characterized in that: The base (1) has two sets of fixing holes (101) on both sides, and the two sets of fixing holes (101) are symmetrically distributed.

Images