Injection mold for hot runner of end cover of ultrafiltration filter flask

Abstract

The utility model relates to the technical field of hot runner injection molding, in particular to a hot runner injection mold for an end cover of an ultrafiltration filter bottle. Comprising two bottom columns, a lower mold is fixedly connected to the upper sides of the two bottom columns, a fixing plate is arranged on the upper side of the lower mold, an upper mold is fixedly connected to the lower side of the fixing plate, and a demolding mechanism is arranged below the lower mold. The melt is further heated by matching with the heating wire in the sleeve, so that the temperature of the melt is kept, and when the fixed plate drives the upper mold to move up and down, the movable plate is driven to move transversely to open or close the lower end of the hot flow pipeline, so that the flowing and forming of the melt are more effectively controlled, and wastes are reduced; after forming, the upper mold moves upwards, the movable plate is driven to reset under the counter-acting force of the extension spring, and therefore the push plate is driven to move upwards, a formed injection molding workpiece can be separated quickly, and the demolding effect is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of hot runner injection molding technology, specifically to a hot runner injection mold for ultrafiltration filter bottle end caps. Background Technology

[0002] Ultrafiltration filter bottle end caps refer to the top or end covers of ultrafiltration filter bottles, typically used to seal and protect the ultrafiltration filter element. These end cap designs ensure that the ultrafiltration filter bottle can effectively filter liquids during use and maintain the normal operation of the filtration system. The production process of ultrafiltration filter bottle end caps requires the use of hot runner injection molds, a heating component system that injects molten plastic particles into the mold cavity. The hot runner maintains its temperature during the injection molding process by heating, keeping the melt in a molten state.

[0003] In existing hot runner injection molds, there are gaps at the bottom of the hot runner, which cannot guarantee uniform heating of the melt. This causes the melt to stagnate during flow, resulting in cooling and molding within the hot runner. This reduces the fluidity of the melt and causes material waste. In addition, after the injection molded part is formed, due to the high temperature of the part, it is easy to stick to the inner wall of the molding tank, making it difficult to demold and reducing the practicality of the device. Utility Model Content

[0004] The purpose of this invention is to provide a hot runner injection mold for the end cap of an ultrafiltration filter bottle to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a hot runner injection mold for ultrafiltration filter bottle end caps, comprising two base pillars, a lower mold fixedly connected to the upper side of the two base pillars, a fixed plate provided on the upper side of the lower mold, an upper mold fixedly connected to the lower side of the fixed plate, a groove provided inside the lower mold, a push plate provided inside the groove, a demolding mechanism provided below the lower mold for demolding the molded end cap, the demolding mechanism including a movable plate, the movable plate being sleeved on the two base pillars, a push rod fixedly connected to the lower side of the push plate, and the push rod being fixedly connected to the lower end of the lower mold and the upper side of the movable plate, cylindrical rods slidably connected to both sides of the lower mold, the lower end of the cylindrical rods being fixedly connected to the upper end of the movable plate, and a flow guiding mechanism provided inside the upper mold for rapid flow of injection molding liquid.

[0006] As a further improvement to this technical solution, a tension spring is fixedly connected to the lower side of the movable plate and one side of the base column, and the tension spring is sleeved on the base column.

[0007] As a further improvement to this technical solution, the flow guiding mechanism includes a heating plate, a flow guiding plate is fixedly connected to the lower side of the heating plate, a plurality of sleeves are fixedly connected inside the flow guiding plate, a heating wire is fixedly connected inside the plurality of sleeves, a hot flow pipe is fixedly connected to the lower side of the flow guiding plate, and an installation hole is provided on the lower side of the upper mold.

[0008] As a further improvement to this technical solution, a movable plate is slidably connected to the lower side of the upper mold, and a through hole is opened inside the movable plate. A return spring is fixedly connected to one side of the movable plate and one side of the interior of the upper mold.

[0009] As a further improvement to this technical solution, a cooling chamber is provided inside the lower mold, and multiple heat-conducting fins are fixedly connected to the side of the cooling chamber near the push plate.

[0010] As a further improvement to this technical solution, a top plate is provided on the upper side of the lower mold, and a lead screw is rotatably connected to the lower side of the top plate and the upper side of the lower mold. A motor is fixedly connected to the upper end of the top plate, and the output end of the motor is fixedly connected to the upper end of the lead screw. An injection port is fixedly connected to the upper side of the fixed plate, and the lower end of the injection port extends into the interior of the upper mold.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. In the hot runner injection mold of the ultrafiltration filter bottle end cap, the flowability of the melt is improved by the setting of heating plate and multiple sleeves. With the heating wire inside the sleeve, the melt is further heated, so that the temperature of the melt is maintained. When the fixed plate drives the upper mold to move up and down, it drives the moving plate to move laterally, opening or closing the lower end of the hot runner, thereby more effectively controlling the flow and molding of the melt and reducing waste.

[0013] 2. In the hot runner injection mold for the end cap of the ultrafiltration filter bottle, the upper mold is moved downward by the fixed plate, the fixed plate moves the cylindrical rod downward, and the movable plate moves downward and squeezes the tension spring, so that the push plate moves into the groove. After molding, the upper mold moves upward, and the movable plate is reset under the reaction force of the tension spring, thereby moving the push plate upward, which facilitates the quick release of the molded injection workpiece and enhances the demolding effect. Attached Figure Description

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a cross-sectional schematic diagram of the lower mold of the utility model;

[0016] Figure 3 This is a cross-sectional schematic diagram of the upper mold of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the drainage plate of the utility model.

[0018] The meanings of the labels in the diagram are as follows:

[0019] 1. Bottom pillar; 11. Lower mold; 12. Top plate; 13. Cooling chamber; 14. Heat-conducting plate; 15. Fixing plate; 16. Upper mold; 17. Ejector plate; 18. Injection port;

[0020] 2. Demolding mechanism; 21. Movable plate; 22. Push rod; 23. Cylindrical rod; 24. Tension spring;

[0021] 3. Flow guiding mechanism; 31. Heating plate; 32. Flow guiding plate; 33. Heating wire; 34. Sleeve; 35. Hot flow pipe; 36. Moving plate; 37. Through hole; 38. Return spring. Detailed Implementation

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Example 1

[0025] Please see Figures 1-4As shown, this embodiment provides a hot runner injection mold for an ultrafiltration filter bottle end cap, including two bottom pillars 1. A lower mold 11 is fixedly connected to the upper side of the two bottom pillars 1. A fixing plate 15 is provided on the upper side of the lower mold 11. An upper mold 16 is fixedly connected to the lower side of the fixing plate 15. A groove is opened inside the lower mold 11. A push plate 17 is provided inside the groove. A demolding mechanism 2 is provided below the lower mold 11. The demolding mechanism 2 is used to demold the molded end cap. The demolding mechanism 2 includes a movable plate 21, which is sleeved on the two bottom pillars 1. A push rod 22 is fixedly connected to the lower side of the push plate 17. The push rod 22 is fixedly connected to the bottom end of the lower mold 11 and the upper side of the movable plate 21. A cylindrical rod 23 is slidably connected to both sides of the lower mold 11. The lower end of the cylindrical rod 23 is fixedly connected to the upper end of the movable plate 21. A tension spring 24 is fixedly connected to the lower side of the movable plate 21 and one side of the bottom pillar 1. The tension spring 24 is sleeved on the bottom pillar 1.

[0026] The starter motor drives the lead screw to rotate, which in turn moves the fixed plate 15 downward. The fixed plate 15 moves the upper mold 16 down into the interior of the lower mold 11. The downward movement of the fixed plate 15 moves the cylindrical rod 23 downward, which in turn moves the movable plate 21 downward and compresses the tension spring 24. The movable plate 21 moves the push rod 22 downward, which in turn moves the push plate 17 into the groove. At the same time, the downward movement of the upper mold 16 causes the movable plate 36 to abut against one side of the interior of the lower mold 11, which in turn moves the movable plate 36 and compresses the reset spring 38, so that the through hole 37 is aligned with the mounting hole, which facilitates melt injection. After molding, the upper mold 16 moves upward, and under the reaction force of the tension spring 24, it moves the movable plate 21 back to its original position, which in turn moves the push plate 17 upward, which facilitates the quick release of the molded injection workpiece and enhances the demolding effect.

[0027] Please see Figure 2 and Figure 3 As shown, the upper mold 16 is equipped with a flow guiding mechanism 3 inside. The flow guiding mechanism 3 is used for rapid flow of injection molding liquid. The flow guiding mechanism 3 includes a heating plate 31. A flow guide plate 32 is fixedly connected to the lower side of the heating plate 31. Multiple sleeves 34 are fixedly connected inside the flow guide plate 32. Heating wires 33 are fixedly connected inside the multiple sleeves 34. A hot flow pipe 35 is fixedly connected to the lower side of the flow guide plate 32. An installation hole is opened on the lower side of the upper mold 16 to introduce the external melt from the injection port 18. The heating plate 31 heats the melt flowing through it, so that the melt maintains a certain temperature. When the melt flows to the flow guide plate 32, it flows from the inside of the sleeve 34 to the hot flow pipe 35. The heating wires 33 inside the sleeve 34 further heat the melt, so that the temperature of the melt is maintained, thereby avoiding the stagnation of the melt during flow. At the same time, the multiple sleeves 34 improve the fluidity of the melt and facilitate rapid flow of the melt.

[0028] Please see Figure 3As shown, a movable plate 36 is slidably connected to the lower side of the upper mold 16, and a through hole 37 is provided inside the movable plate 36. A return spring 38 is fixedly connected to one side of the movable plate 36 and the inside of the upper mold 16. When the upper mold 16 moves down, it causes the movable plate 36 to abut against the inside of the lower mold 11, which moves the movable plate 36 and squeezes the return spring 38, so that the through hole 37 is aligned with the mounting hole, which facilitates melt injection. When the upper mold 16 moves up, it causes the movable plate 36 to disengage from the inside of the lower mold 11. Under the reaction force of the return spring 38, the movable plate 36 is reset, so that the through hole 37 is misaligned with the mounting hole, blocking the mounting hole and preventing the melt from flowing out, thereby more effectively controlling the flow and molding of the melt and reducing waste.

[0029] Please see Figure 2 As shown, a cooling chamber 13 is provided inside the lower mold 11. Multiple heat-conducting plates 14 are fixedly connected to the side of the cooling chamber 13 near the push plate 17. The heat generated inside the lower mold 11 is transferred to the cooling chamber 13 through the heat-conducting plates 14. The coolant in the cooling chamber 13 absorbs the heat, thereby enhancing the demolding efficiency of the workpiece.

[0030] Please see Figure 1 As shown, a top plate 12 is provided on the upper side of the lower mold 11. A lead screw is rotatably connected to the lower side of the top plate 12 and the upper side of the lower mold 11. A motor is fixedly connected to the upper end of the top plate 12. The output end of the motor is fixedly connected to the upper end of the lead screw. An injection port 18 is fixedly connected to the upper side of the fixed plate 15. The lower end of the injection port 18 extends into the interior of the upper mold 16. The motor drives the lead screw to rotate, which facilitates the movement of the fixed plate 15 up and down, thereby moving the upper mold 16 into the lower mold 11 for injection molding.

[0031] In this embodiment, the hot runner injection mold for the end cap of the ultrafiltration filter bottle is used to introduce external melt into the injection port 18. The heating plate 31 heats the melt flowing through it. The melt flows from the inside of the sleeve 34 to the hot runner 35. The heating wire 33 inside the sleeve 34 further heats the melt, maintaining its temperature and preventing stagnation during melt flow. The upper mold 16 moves down, causing the moving plate 36 to abut against one side of the lower mold 11. The moving plate 36 moves and presses the return spring 38, aligning the through hole 37 with the mounting hole for easy melt injection. The upper mold 16 moves up, causing the moving plate 36 to disengage from the lower mold 11. Under the reaction force of the return spring 38, the moving plate 36 returns to its original position, causing the through hole 37 to misalign with the mounting hole, blocking the mounting hole and preventing melt from flowing out. This more effectively controls the flow and molding of the melt and reduces waste.

[0032] The start-up motor drives the lead screw to rotate, which in turn moves the fixed plate 15 downward, causing the cylindrical rod 23 to move downward. This, in turn, moves the movable plate 21 downward and compresses the tension spring 24. The movable plate 21 then moves the push rod 22 downward, which in turn moves the push plate 17 into the groove. After molding, the upper mold 16 moves upward, and under the reaction force of the tension spring 24, it causes the movable plate 21 to reset, which in turn moves the push plate 17 upward. This facilitates the quick release of the molded injection workpiece and enhances the demolding effect.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hot runner injection mold for ultrafiltration filter bottle end caps, comprising two bottom pillars (1), characterized in that: A lower mold (11) is fixedly connected to the upper side of the two base columns (1). A fixing plate (15) is provided on the upper side of the lower mold (11). An upper mold (16) is fixedly connected to the lower side of the fixing plate (15). A groove is provided inside the lower mold (11). A push plate (17) is provided inside the groove. A demolding mechanism (2) is provided below the lower mold (11). The demolding mechanism (2) is used to demold the molded end cap. The demolding mechanism (2) includes a movable plate (21). The movable plate (21) is sleeved on the two bottom columns (1). The push plate (17) is fixedly connected to the lower side of the push rod (22), and the push rod (22) is fixedly connected to the upper side of the movable plate (21) at the bottom end of the lower mold (11). The lower mold (11) is slidably connected to the two sides of the cylindrical rod (23), and the lower end of the cylindrical rod (23) is fixedly connected to the upper end of the movable plate (21). The upper mold (16) is provided with a flow guiding mechanism (3), which is used for rapid flow of injection molding liquid.

2. The hot runner injection mold for the end cap of the ultrafiltration filter bottle according to claim 1, characterized in that: A tension spring (24) is fixedly connected to the lower side of the movable plate (21) and one side of the bottom column (1), and the tension spring (24) is sleeved on the bottom column (1).

3. The hot runner injection mold for the end cap of the ultrafiltration filter bottle according to claim 1, characterized in that: The flow guiding mechanism (3) includes a heating plate (31), a flow guiding plate (32) is fixedly connected to the lower side of the heating plate (31), a plurality of sleeves (34) are fixedly connected inside the flow guiding plate (32), a heating wire (33) is fixedly connected inside the plurality of sleeves (34), a hot flow pipe (35) is fixedly connected to the lower side of the flow guiding plate (32), and an installation hole is provided on the lower side of the upper mold (16).

4. The hot runner injection mold for the end cap of the ultrafiltration filter bottle according to claim 1, characterized in that: A movable plate (36) is slidably connected to the lower side of the upper mold (16), and a through hole (37) is provided inside the movable plate (36). A return spring (38) is fixedly connected to one side of the movable plate (36) and one side of the interior of the upper mold (16).

5. The hot runner injection mold for the end cap of the ultrafiltration filter bottle according to claim 1, characterized in that: The lower mold (11) has a cooling chamber (13) inside, and a number of heat-conducting plates (14) are fixedly connected to the side of the cooling chamber (13) near the push plate (17).

6. The hot runner injection mold for the end cap of the ultrafiltration filter bottle according to claim 1, characterized in that: The upper side of the lower mold (11) is provided with a top plate (12), and the lower side of the top plate (12) is rotatably connected to the upper side of the lower mold (11) with a lead screw. The upper end of the top plate (12) is fixedly connected with a motor, and the output end of the motor is fixedly connected to the upper end of the lead screw. The upper side of the fixing plate (15) is fixedly connected with an injection port (18), and the lower end of the injection port (18) extends into the interior of the upper mold (16).

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