A common manifold central supply system employing a flow splitter valve

Abstract

The utility model discloses a kind of common material pipe central feeding systems using shunt valve, it is related to injection molding machine feeding technical field, including bunker, pipe body, console, negative pressure fan, central filter and injection molding machine, it is characterized by: shunt mechanism is equipped on the pipe body;The shunt mechanism includes inflow pipe and shunt pipe, Y-shaped shunt passage is equipped between the inflow pipe and shunt pipe, cylinder is fixed in the shunt passage side wall, the output end of the cylinder is connected with connector, the end portion of the connector is rotatably connected with pry piece;This common material pipe central feeding system using shunt valve;Using cylinder drive baffle structure, the accurate opening and closing of injection molding machine feeding are realized;Extrusion plate and guide wheel design prevent raw material accumulation block, improve operating reliability;Baffle and injection molding machine signal linkage, ensure that feeding is synchronized;Y-shaped shunt passage optimizes flow passage distribution, reduces pressure loss;Integral structure is simple and durable, suitable for high frequency, the automatic production scene of multiple machine table.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine feeding technology, specifically a central feeding system for a common material tube using a diversion valve. Background Technology

[0002] Centralized material feeding systems are widely used in injection molding production to transport raw materials from silos to multiple injection molding machines. Traditional systems use a fixed branching method. In the negative pressure conveying process of plastic granules, when a main pipe is used to branch to each injection molding machine, a Y-type tee and a shut-off valve are usually installed at the branching point of the main pipe. Due to inertia, the material usually remains inside the main pipe, requiring secondary cleaning, i.e., cleaning the pipe after the raw material branching point. However, some plastic granules will always remain inside the pipe. After the granules remain inside the pipe for a long time, the temperature drops and they absorb moisture from the air, seriously affecting the quality of the finished plastic injection molded product.

[0003] Therefore, there is an urgent need for a diversion mechanism that can be precisely controlled and prevents blockages, in order to improve the efficiency and stability of material supply. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a central feeding system for a common material pipe using a diversion valve, which solves the problem of independent opening and closing of the injection molding machine feeding system. By diverting the flow, it avoids material residue inside the main pipe and eliminates the need for secondary cleaning.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a central feeding system for a common material pipe using a diversion valve, comprising a hopper, a pipe body, a control console, a negative pressure fan, a central filter, and an injection molding machine, characterized in that: a diversion mechanism is provided on the pipe body; the diversion mechanism includes an inlet pipe and a diversion pipe, a Y-shaped diversion channel is provided between the inlet pipe and the diversion pipe, a cylinder is fixed to the side wall of the diversion channel, a connector is connected to the output end of the cylinder, a skid is rotatably connected to the end of the connector, a rotating rod is fixed inside the skid, the rotating rod extends into the inside of the diversion pipe and is fixedly connected to a baffle, the baffle rotates with the cylinder to control the opening and closing of the diversion channel.

[0006] Furthermore: a hinge is fixed at the lower end of the baffle, the hinge is hinged to the extrusion plate, and a limiting plate is provided at the lower end of the extrusion plate. The limiting plate abuts against the end of the baffle and limits the movement. When the extrusion plate rotates with the baffle, it pushes the raw material in the diversion channel to prevent blockage.

[0007] Furthermore, multiple guide wheels are rotatably connected at the lower end of the extrusion plate, and the guide wheels are equally spaced to improve the smoothness of rotation when the extrusion plate contacts the inner wall of the diversion channel.

[0008] Furthermore, the drive signal of the cylinder is connected to the material suction signal of the injection molding machine to achieve synchronous control of material supply and injection molding requirements.

[0009] Furthermore, the rotation angle of the baffle is controlled by the cylinder stroke, which is used to precisely adjust the opening and closing degree of the diversion channel.

[0010] Furthermore, the diversion pipe port of the Y-shaped diversion channel is connected to the injection molding machine to realize independent feeding control of multiple raw materials.

[0011] This invention provides a central feeding system for a common feed pipe using a diversion valve. Compared with the prior art, it has the following advantages:

[0012] This system employs a common feed tube central feeding system with a diversion valve; a cylinder-driven baffle structure enables precise opening and closing of the injection molding machine's feeding mechanism; the extrusion plate and guide wheel design prevents material accumulation and blockage, improving operational reliability; the baffle is linked to the injection molding machine's signal to ensure synchronized feeding; the Y-shaped diversion channel optimizes the flow distribution and reduces pressure loss; the overall structure is simple and durable, suitable for high-frequency, multi-machine automated production scenarios. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the injection molding machine material supply system according to this utility model;

[0014] Figure 2 This is a schematic diagram of the diversion mechanism of this utility model;

[0015] Figure 3 This is a schematic diagram of the diversion channel and baffle of this utility model;

[0016] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 1. Hopper; 2. Pipe body; 3. Control console; 4. Negative pressure fan; 5. Central filter; 6. Injection molding machine; 7. Diversion channel; 9. Inlet pipe; 10. Diversion pipe; 11. Cylinder; 12. Connector; 13. Skid; 14. Rotating rod; 15. Baffle; 16. Hinge; 17. Extrusion plate; 18. Limiting plate; 19. Guide wheel. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4 This utility model provides a technical solution: a central feeding system for a common material pipe using a diversion valve; the entire feeding system specifically includes a hopper 1, a pipe body 2, a control console 3, a negative pressure fan 4, a central filter 5, and an injection molding machine 6. Raw materials are conveyed through the pipe body 2 connected to the lower end of the hopper 1. A diversion mechanism is fixed on the pipe body 2, and the diversion end of the diversion mechanism is connected to the injection molding machine 6 through the pipe body 2. The control console 3, the negative pressure fan 4, and the central filter 5 are arranged on the side of the hopper 1. The central filter 5 injects raw material formulations and other materials into each injection molding machine 6; this is existing known technology and will not be described in detail here. The diversion mechanism includes an inlet pipe 9 and a diversion pipe 10, with a diversion channel provided between the inlet pipe 9 and the diversion pipe 10. 7. The diversion channel 7 is Y-shaped. The diversion pipe 10 is fixed at both ends of the Y-shape. A cylinder 11 is fixed on the side wall of the diversion channel 7. A connector 12 is fixed at the output end of the cylinder 11. A pry bar 13 is rotatably connected to the end of the connector 12. A rotating rod 14 is fixedly connected inside the pry bar 13. The rotating rod 14 extends into the interior of the diversion pipe 10. A baffle 15 is fixedly connected to the rotating rod 14 inside the diversion pipe 10. The baffle 15 rotates up and down according to the drive of the cylinder 11, thereby diverting the flow in the space of the diversion channel 7. This allows the injection molding machine 6 to shut off the upper feeding. The drive of the cylinder 11 is connected to the suction signal point at the upper end of the injection molding machine 6, thereby achieving synchronization.

[0020] A hinge 16 is fixedly connected to the lower end of the baffle 15. An extrusion plate 17 is hinged to the baffle 15. A limit plate 18 is fixedly connected to the lower end of the extrusion plate 17. The limit plate 18 is abutted against the end of the baffle 15 to limit the movement. When the baffle 15 rotates downward, the extrusion plate 17 first contacts the inner wall of the diversion channel 7. Then, as the baffle 15 rotates downward, the baffle 15 drives the extrusion plate 17 to push the raw material at the port, thereby preventing the raw material from blocking the lower end of the baffle 15 and affecting the sealing and material blocking.

[0021] A guide wheel 19 is rotatably connected at the lower end of the extrusion plate 17. Multiple guide wheels 19 are provided with equal spacing. When the lower end of the extrusion plate 17 abuts against the diversion channel 7, the guide wheels 19 provide auxiliary rotation to improve the smoothness of rotation.

Claims

1. A central feeding system for a common feed pipe using a diversion valve, comprising a hopper (1), a pipe body (2), a control console (3), a negative pressure fan (4), a central filter (5), and an injection molding machine (6), characterized in that: The pipe body (2) is provided with a diversion mechanism; The diversion mechanism includes an inlet pipe (9) and a diversion pipe (10). A Y-shaped diversion channel (7) is provided between the inlet pipe (9) and the diversion pipe (10). A cylinder (11) is fixed on the side wall of the diversion channel (7). A connector (12) is connected to the output end of the cylinder (11). A pry bar (13) is rotatably connected to the end of the connector (12). A rotating rod (14) is fixed inside the pry bar (13). The rotating rod (14) extends into the diversion pipe (10) and is fixedly connected to a baffle (15). The baffle (15) is driven to rotate with the cylinder (11) to control the opening and closing of the diversion channel (7).

2. A central feeding system for a common feed pipe using a diversion valve according to claim 1, characterized in that: A hinge (16) is fixed at the lower end of the baffle (15). The hinge (16) is hinged to the extrusion plate (17). A limiting plate (18) is provided at the lower end of the extrusion plate (17). The limiting plate (18) abuts against the end of the baffle (15) to limit the movement. When the extrusion plate (17) rotates with the baffle (15), it pushes the raw material in the diversion channel (7) to prevent blockage.

3. A central feeding system for a common feed pipe using a diversion valve according to claim 2, characterized in that: Multiple guide wheels (19) are rotatably connected at the lower end of the extrusion plate (17). The guide wheels (19) are spaced equally to improve the smoothness of rotation when the extrusion plate (17) contacts the inner wall of the diversion channel (7).

4. A central feeding system for a common feed pipe using a diversion valve according to claim 2, characterized in that: The drive signal of the cylinder (11) is connected to the suction signal of the injection molding machine (6) to realize the synchronous control of material supply and injection molding requirements.

5. A central feeding system for a common feed pipe using a diversion valve according to claim 2, characterized in that: The rotation angle of the baffle (15) is controlled by the stroke of the cylinder (11) to precisely adjust the opening and closing degree of the diversion channel (7).

6. A central feeding system for a common feed pipe using a diversion valve according to claim 2, characterized in that: The Y-shaped diversion channel (7) has its diversion pipe (10) port connected to the injection molding machine (6) to achieve independent material supply control for multiple raw materials.

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