Automatic injection mold for rubber bushing

Abstract

The utility model relates to the technical field of injection molds, and discloses a rubber bushing automatic injection mold which comprises a mounting frame, a control terminal is mounted on one side of the mounting frame, an upper mold is mounted at one end of the mounting frame, a lower mold is mounted at the other end of the mounting frame, and two supporting plates are fixedly connected to one side of the inner wall of the mounting frame. And one end of the supporting plate is fixedly connected with a static mold. According to the automatic injection mold for the rubber bushing, the static mold, the upper mold and the lower mold are spliced to form the complete injection mold for injection molding, so that when the upper mold is separated from the lower mold, the static mold and the upper mold form reverse pushing on a molded part, and the molded part is extruded out of a molding groove of the upper mold; and circulating cooling water of the circulating refrigerator flows into the circulating groove to cool the static mold, so that the static mold is in a constant-temperature state, the quality of an injection molded part is prevented from being influenced by high-temperature operation of the mold, and a worker can take out the molded rubber bushing more conveniently.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an automated injection mold for rubber bushings. Background Technology

[0002] The process of injection molding rubber bushings involves injecting molten rubber material into a pre-designed mold cavity using a precision injection molding machine. During this process, temperature and pressure control are crucial to ensure that the rubber material can be evenly filled into every corner of the mold. After a period of cooling and curing, the rubber material gradually hardens, eventually forming a rubber bushing of the predetermined shape. This production method can efficiently manufacture rubber bushings with complex shapes and precise dimensions, and is widely used in many industries such as automotive, machinery, and electronics.

[0003] In practical use, traditional rubber bushing molds suffer from excessive heat due to the long-term operation of the injection mold, which causes the mold to absorb the high temperature of the molten material. This results in the mold temperature becoming too high, preventing the molded part from cooling and solidifying quickly during each injection. Furthermore, when the two molds separate, the molded part remains embedded in the mold, causing it to stick to the molding groove. This increases the difficulty of demolding the molded part, hindering the molding and demolding of rubber bushings and reducing the efficiency of the equipment in producing rubber bushings. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that the mold temperature is too high, which affects the molding and demolding efficiency. To this end, we propose an automated injection mold for rubber bushings.

[0005] To achieve the above objectives, this application adopts the following technical solution: an automated injection mold for rubber bushings, comprising a mounting frame, a control terminal mounted on one side of the mounting frame, an upper mold mounted on one end of the mounting frame, a lower mold mounted on the other end of the mounting frame, two support plates fixedly connected to one side of the inner wall of the mounting frame, a stationary mold fixedly connected to one end of each support plate, the stationary mold being slidably connected to the middle of the upper mold, a flow groove being provided inside the stationary mold, two copper pipes fixedly connected to one side of the stationary mold, a circulating cooler mounted on one end of each copper pipe, a water tank fixedly connected to one side of the mounting frame, two conduits mounted on one end of each circulating cooler, and the other ends of each conduit mounted on the top of the water tank.

[0006] Preferably, a frame is fixedly connected to one side of the mounting bracket, a drive motor is fixedly connected to the middle of the frame, and a fan is installed at the output end of the drive motor.

[0007] Preferably, air vents are provided at the top and bottom of both the upper and lower molds, and the air vents extend through both sides of the upper and lower molds.

[0008] Preferably, both ends of the air vent are rounded.

[0009] Preferably, a transparent shell is fixedly connected to one side of both the upper mold and the lower mold, and the transparent shell is filled with thermochromic powder.

[0010] Preferably, the inner diameters of the upper mold and the stationary mold are both conical structures, and the inner diameter of the upper mold is adapted to the surface dimensions of the stationary mold.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] In this invention, when the upper and lower molds are combined, the stationary mold is positioned in the middle of the upper mold, forming a complete mold. This allows the lower and upper molds to be properly injection molded to form a rubber bushing. A copper pipe connects the circulating cooler to the stationary mold, allowing cooling water from the water tank to be introduced through a conduit and flow into the stationary mold via the copper pipe. The cooling water circulates once in a flow channel before flowing out through another copper pipe, thus cooling the stationary mold. When injection molding is complete, the upper and lower molds move in opposite directions to separate. As the upper mold gradually moves away from the stationary mold, the stationary mold is positioned in the middle of the upper mold. This allows the stationary mold to limit the injection molded part as the upper mold moves, and pushes the injection molded part in the opposite direction, separating the outer side of the injection molded part from the upper mold. This facilitates the removal of the injection-molded rubber bushing. Simultaneously, the stationary mold is kept at a constant temperature by the circulation of cooling water injected by the circulating cooler. This prevents the molded part from deforming or melting and sticking to the mold due to high temperature, thereby improving the cooling effect of the molded part and the mold, increasing the efficiency of the rubber bushing solidification, and making it easier for workers to demold the molded rubber bushing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a sectional view of the vertical cross-section of the present invention;

[0015] Figure 3 This is a cross-sectional view of the internal structure of the static mold of this utility model;

[0016] Figure 4 This is a schematic diagram of the rear structure of the present invention;

[0017] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0018] Legend: 1. Mounting frame; 2. Control terminal; 3. Upper mold; 4. Lower mold; 5. Support plate; 6. Static mold; 7. Flow channel; 8. Copper pipe; 9. Circulating cooler; 10. Water tank; 11. Pipe; 12. Frame; 13. Drive motor; 14. Fan; 15. Air vent; 16. Rounded corner; 17. Transparent shell. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0020] Reference Figure 1 - Figure 4 As shown, this utility model provides a technical solution: an automated injection mold for rubber bushings, including a mounting frame 1, a control terminal 2 mounted on one side of the mounting frame 1, an upper mold 3 mounted on one end of the mounting frame 1, and a lower mold 4 mounted on the other end of the mounting frame 1. Two support plates 5 are fixedly connected to one side of the inner wall of the mounting frame 1, and a stationary mold 6 is fixedly connected to one end of the support plate 5. The stationary mold 6 is slidably connected to the middle of the upper mold 3. A flow groove 7 is opened inside the stationary mold 6. Two copper pipes 8 are fixedly connected to one side of the stationary mold 6, and a circulating cooler 9 is installed at one end of the copper pipes 8. A water tank 10 is fixedly connected to one side of the mounting frame 1. Two conduits 11 are installed at one end of the circulating cooler 9, and the other ends of the conduits 11 are installed at the top of the water tank 10. When the upper mold 3 and the lower mold 4 are combined, the stationary mold 6 is placed in the middle position of the upper mold 3, so that the upper mold 3 and the stationary mold 6 form a complete mold, allowing the lower mold 4 and the upper mold 3 to be normally injection molded to form a rubber bushing. Then, the circulating cooler 9 and the stationary mold are connected through the copper pipes 8. The connection 6 allows the circulating cooler 9 to introduce cooling water from the water tank 10 through the conduit 11, which then flows into the stationary mold 6 through the copper pipe 8. The cooling water circulates once in the flow channel 7 and then flows out through another copper pipe 8, thus achieving a cooling effect on the stationary mold 6. When the injection molding is completed, the upper mold 3 and the lower mold 4 move in opposite directions to separate. The upper mold 3 gradually moves away from the stationary mold 6, and the stationary mold 6 is positioned in the middle of the upper mold 3. When the upper mold 3 moves, the stationary mold 6 forms a limit on the injection molded part and pushes the injection molded part in the opposite direction, causing the outer side of the injection molded part to separate from the upper mold 3, so as to facilitate the removal of the injection molded rubber bushing. At the same time, the circulation of cooling water injected into the stationary mold 6 by the circulating cooler 9 ensures that the stationary mold 6 is in a constant temperature state, preventing the molded part from deforming or melting and sticking due to high temperature. This improves the cooling effect of the molded part and the mold, improves the efficiency of the solidification of the rubber bushing, and makes it easier for the staff to demold the molded rubber bushing.

[0021] Reference Figure 1 - Figure 4As shown in this embodiment: a frame 12 is fixedly connected to one side of the mounting frame 1, and a drive motor 13 is fixedly connected to the middle of the frame 12. A fan 14 is installed at the output end of the drive motor 13. When the operator starts the drive motor 13, the fan 14 generates airflow to blow air onto the upper mold 3 and the lower mold 4, so that the fan 14 cools the surfaces of the upper mold 3 and the lower mold 4. By removing the high temperature generated by the machine operation inside the mounting frame 1, the high temperature inside the mounting frame 1 and the mold is prevented from being too high, which would affect the molding efficiency of the rubber bushing injection molding production.

[0022] Reference Figure 4 and Figure 5 As shown in this embodiment: air holes 15 are provided at the top and bottom of both the upper mold 3 and the lower mold 4. The air holes 15 extend through both sides of the upper mold 3 and the lower mold 4. Through the air holes 15, the outer sides of the upper mold 3 and the lower mold 4 have holes for air circulation, so that the air generated by the fan 14 can flow into the air holes 15, increasing the contact area between the upper mold 3 and the lower mold 4 and the air. This makes it easier for the heat inside the upper mold 3 and the lower mold 4 to be discharged naturally through the air holes 15, thereby improving the cooling effect on the upper mold 3 and the lower mold 4.

[0023] Reference Figure 4 and Figure 5 As shown in this embodiment: both ends of the air hole 15 are provided with rounded corners 16. Through the rounded corners 16 at both ends of the air hole 15, when the wind generated by the fan 14 blows the upper mold 3 and the lower mold 4, the rounded corners 16 can enlarge the opening size of the air hole 15, which is more conducive to the wind entering the air hole 15, increasing the airflow inside the air hole 15, and increasing the cooling effect of the fan 14 on the mold.

[0024] Reference Figure 1 As shown in this embodiment: a transparent shell 17 is fixedly connected to one side of both the upper mold 3 and the lower mold 4. The transparent shell 17 is filled with thermochromic powder. The transparent shell 17 is placed on one side of the upper mold 3 and the lower mold 4, and the thermochromic powder directly contacts the surface of the upper mold 3 and the lower mold 4. When the upper mold 3 and the lower mold 4 reach the critical value for color change of the thermochromic powder due to operation, the thermochromic powder will change color, indicating to the staff that the mold temperature is too high and affects the injection molding effect, so that the staff can take action, such as using the fan 14 to cool down or stopping the machine and letting the mold cool down.

[0025] Reference Figure 2 and Figure 3 As shown in this embodiment: the inner diameter of the middle part of the upper mold 3 and the stationary mold 6 are both conical structures. The inner diameter of the upper mold 3 is adapted to the surface size of the stationary mold 6. By adopting conical structures for the inner diameters of the upper mold 3 and the stationary mold 6, it is ensured that the upper mold 3 and the stationary mold 6 can fit tightly together when they are combined, reducing the impact of the gap generated when the upper mold 3 is spliced ​​with the stationary mold 6 on the injection molding of the rubber bushing, and reducing the burrs generated during the injection molding of the rubber bushing.

[0026] Working principle: When the upper mold 3 and lower mold 4 merge, the stationary mold 6 is positioned in the middle of the upper mold 3, forming a complete mold. This allows the lower mold 4 and upper mold 3 to be injection molded normally to form a rubber bushing. A copper pipe 8 connects the circulating cooler 9 to the stationary mold 6, allowing cooling water from the water tank 10 to be introduced into the circulating cooler 9 through the conduit 11. The water then flows into the stationary mold 6 through the copper pipe 8, circulating once in the flow channel 7 before flowing out through another copper pipe 8, thus cooling the stationary mold 6. When injection molding is complete, the upper mold 3 and lower mold 4 move in opposite directions to separate. The upper mold 3 gradually moves away from the stationary mold 6, and the stationary mold 6 is positioned in the middle of the upper mold 3, allowing the upper mold 3 to move... At the same time, the stationary mold 6 forms a limit on the injection molded part and pushes the injection molded part in the opposite direction, causing the outer side of the injection molded part to separate from the upper mold 3, so as to facilitate the removal of the injection-molded rubber bushing. At the same time, the stationary mold 6 is kept at a constant temperature by the circulation of cooling water injected by the circulating cooler 9, which prevents the molded part from deforming or melting and sticking to it due to high temperature of the stationary mold 6. This improves the cooling effect of the molded part and the mold, improves the efficiency of the solidification of the rubber bushing, and makes it easier for the operator to demold the molded rubber bushing. The operator starts the drive motor 13 to drive the fan 14 to generate airflow to the upper mold 3 and the lower mold 4, so that the fan 14 cools the surfaces of the upper mold 3 and the lower mold 4. The high temperature generated by the operation of the machine inside the mounting frame 1 is also used to cool the surface of the upper mold 3 and the lower mold 4. To prevent excessively high temperatures inside the mounting bracket 1 and the mold, which could affect the molding efficiency of the rubber bushing injection molding process, air vents 15 are provided on the outer sides of the upper mold 3 and lower mold 4. This allows air generated by the fan 14 to flow into the air vents 15, increasing the contact area between the upper mold 3 and lower mold 4 and the air. This makes it easier for heat inside the upper mold 3 and lower mold 4 to be expelled naturally through the air vents 15, thus improving the cooling effect on the upper mold 3 and lower mold 4. The rounded corners 16 at both ends of the air vents 15 enlarge the opening size of the air vents 15 when the air generated by the fan 14 blows through the upper mold 3 and lower mold 4, further facilitating airflow into the air vents 15 and increasing the air circulation within the air vents 15. The cooling effect of the fan 14 on the mold is achieved by placing a transparent shell 17 on one side of the upper mold 3 and the lower mold 4, and then directly contacting the surface of the upper mold 3 and the lower mold 4 with the thermochromic powder. When the upper mold 3 and the lower mold 4 reach the critical value for color change of the thermochromic powder due to operation, the thermochromic powder will change color, indicating to the operator that the mold temperature is too high and affects the injection molding effect, so that the operator can take action, such as using the fan 14 to cool down or stopping the machine to let the mold cool down. The inner diameter of both the upper mold 3 and the stationary mold 6 adopts a conical structure to ensure that the upper mold 3 and the stationary mold 6 can fit tightly together when they are joined, reducing the impact of the gap generated when the upper mold 3 is joined with the stationary mold 6 on the injection molding of the rubber bushing, and reducing the burrs generated during the injection molding of the rubber bushing.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automated injection mold for rubber bushings, comprising a mounting bracket (1), characterized in that: A control terminal (2) is installed on one side of the mounting frame (1). An upper mold (3) is installed at one end of the mounting frame (1), and a lower mold (4) is installed at the other end of the mounting frame (1). Two support plates (5) are fixedly connected to one side of the inner wall of the mounting frame (1). A stationary mold (6) is fixedly connected to one end of the support plate (5). The stationary mold (6) is slidably connected to the middle of the upper mold (3). A flow groove (7) is opened inside the stationary mold (6). Two copper pipes (8) are fixedly connected to one side of the stationary mold (6). A circulating cooler (9) is installed at one end of the copper pipes (8). A water tank (10) is fixedly connected to one side of the mounting frame (1). Two conduits (11) are installed at one end of the circulating cooler (9). The other end of the conduits (11) is installed on the top of the water tank (10).

2. The automated injection mold for rubber bushings according to claim 1, characterized in that: A frame (12) is fixedly connected to one side of the mounting bracket (1), and a drive motor (13) is fixedly connected to the middle of the frame (12). A fan (14) is installed at the output end of the drive motor (13).

3. The automated injection mold for rubber bushings according to claim 1, characterized in that: The upper mold (3) and the lower mold (4) are provided with air holes (15) at the top and bottom, and the air holes (15) pass through both sides of the upper mold (3) and the lower mold (4).

4. The automated injection mold for rubber bushings according to claim 3, characterized in that: Both ends of the air hole (15) are provided with rounded corners (16).

5. The automated injection mold for rubber bushings according to claim 1, characterized in that: A transparent shell (17) is fixedly connected to one side of both the upper mold (3) and the lower mold (4), and the transparent shell (17) is filled with thermochromic powder.

6. The automated injection mold for rubber bushings according to claim 1, characterized in that: The inner diameter of the upper mold (3) and the stationary mold (6) is a conical structure, and the inner diameter of the upper mold (3) is adapted to the surface size of the stationary mold (6).

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