Injection mold with convenient material injection

Abstract

The application discloses a convenient injection of injection mold, belongs to injection mold technical field, its technical scheme main points include upper die and lower die, the top of upper die is provided with injection port, the bottom of injection port is provided with injection hole, the end of injection hole away from injection port is communicated with injection cavity, both sides of injection hole are provided with installation cavity, the inner wall of installation cavity is provided with electric telescopic rod, the piston rod of electric telescopic rod is connected with sliding plate, the end away from electric telescopic rod of sliding plate is provided with cutting knife;The two sides of the inner wall above injection hole are provided with heating groove, the opening of heating groove is provided with heat conduction sheet, the back of heat conduction sheet is provided with electric heating plate, the application avoids the situation of residual liquid solidification, prevents the situation of injection hole blockage, improves the convenience of subsequent injection.

Description

Technical Field

[0001] This application belongs to the field of injection mold technology, and more specifically it relates to an injection mold that facilitates material injection. Background Technology

[0002] Air purifiers are products that can adsorb, decompose, or transform various air pollutants to effectively improve air cleanliness. They are mainly household and commercial air purifiers used to remove indoor air pollution. During the production of the purifier shell, injection molding is required.

[0003] Currently, Chinese patent CN211566786U discloses an injection mold for the shell of a car air purifier. The production mold includes a lower mold structure and an upper mold structure. The bottom inner side of the lower mold structure is provided with a demolding structure, and the upper mold structure is provided with a connecting groove. A filter structure is inserted into the connecting groove. The filter structure includes a filter plate. One end of the filter plate is fixedly connected to a rear baffle. A pull rod is fixedly connected to the middle of the side wall of the rear baffle away from the filter plate. The upper and lower ends of the rear baffle, which are far apart from each other, are both internally connected with fixing screws.

[0004] In existing injection molds similar to those described above, after injection molding is completed, residual injection liquid often remains in the injection hole at the top of the mold. When the residual injection liquid solidifies, it will block the injection hole, affecting the next injection and the convenience of injection. Therefore, there is room for improvement. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an injection mold that facilitates injection. Its advantages are that it avoids the solidification of residual liquid, prevents the blockage of injection holes, and improves the convenience of subsequent injection.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for convenient material injection, comprising an upper mold plate and a lower mold plate. The top of the upper mold plate is provided with an injection port, and the bottom of the injection port is provided with an injection hole. The end of the injection hole away from the injection port is connected to an injection cavity. Mounting cavities are formed on both sides of the injection hole. An electric telescopic rod is provided on the inner wall of each mounting cavity. The piston rod of the electric telescopic rod is connected to a sliding plate, and a cutting blade is provided on the end of the sliding plate away from the electric telescopic rod. Heating grooves are formed on both inner walls of the injection hole above the mounting cavities. A heat-conducting plate is provided at the opening of each heating groove, and an electric heating plate is provided on the back of the heat-conducting plate.

[0007] By adopting the above technical solution, during use, the injection molten metal flows from the injection port through the injection hole into the injection cavity. After injection is completed, the piston rod of the electric telescopic rod is extended, and the two cutting blades move relative to each other to cut off the injection molten metal. At this time, the electric heating plate is turned on to heat the molten metal. The electric heating plate transfers heat to the heat-conducting plate, which heats the injection molten metal in the residual groove injection hole, preventing the residual liquid from solidifying and preventing the injection hole from becoming blocked, thus improving the convenience of subsequent injection.

[0008] In a preferred embodiment: a sealing sleeve is provided at the opening of the mounting cavity, and the cutting blade can slide inside the sealing sleeve.

[0009] By adopting the above technical solution, the sealing sleeve can completely block the mounting cavity, preventing the injection liquid from entering the mounting cavity during injection molding.

[0010] In a preferred embodiment: the inner wall of the sealing sleeve is provided with a scraper, and the scraper is in complete contact with the surface of the cutting blade.

[0011] By adopting the above technical solution, the scraper can remove the injection liquid from the surface of the cutting blade, thus avoiding waste of the injection liquid.

[0012] In a preferred embodiment: a limiting block is provided on the inner wall of the mounting cavity, and when the two cutting blades are in contact, the sliding plate contacts the limiting block.

[0013] By adopting the above technical solution, the setting of the limiting block can limit the sliding plate and avoid damage caused by excessive collision between the two cutting blades.

[0014] In a preferred embodiment: a buffer pad is provided on the outer wall of the limiting block near the sliding plate, and the buffer pad is made of silicone.

[0015] By adopting the above technical solution, the buffer pad can play a good buffering role when the sliding plate contacts the limiting block, reducing the wear between the sliding plate and the limiting block.

[0016] In a preferred embodiment: there are multiple electric heating plates, which are distributed at equal intervals on the surface of the heat-conducting sheet.

[0017] By adopting the above technical solution, the setting of multiple electric heating plates can heat multiple points of the heat-conducting sheet, thereby improving the heating rate.

[0018] In a preferred embodiment: the outer wall of the electric heating plate is provided with heating protrusions, and the outer wall of the heat-conducting sheet is provided with heat-conducting grooves, the heating protrusions being adapted to the heat-conducting grooves.

[0019] By adopting the above technical solution, the setting of the heating protrusion can increase the contact area between the electric heating plate and the heat-conducting sheet, thereby improving the heat conduction rate.

[0020] Compared with the prior art, this application has the following beneficial effects: 1. During use, the injection molding liquid flows from the injection port through the injection hole into the injection cavity. After injection is completed, the piston rod of the electric telescopic rod extends, and the two cutting blades move relative to each other to cut off the injection molding liquid. At this time, the electric heating plate is turned on to heat the liquid. The electric heating plate transfers heat to the heat-conducting plate, which heats the injection molding liquid in the residual groove injection hole, preventing the residual liquid from solidifying and causing blockage of the injection hole, thus improving the convenience of subsequent injection. 2. The sealing sleeve can completely block the mounting cavity, preventing the injection liquid from entering the mounting cavity during injection molding; the scraper can scrape off the injection liquid on the surface of the cutting blade, preventing the injection liquid from being wasted; the limiting block can limit the sliding plate, preventing the two cutting blades from colliding too much and causing damage. 3. Multiple electric heating plates can heat multiple points on the heat-conducting sheet, increasing the heating rate; the heating protrusions can increase the contact area between the electric heating plates and the heat-conducting sheet, increasing the heat conduction rate. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a cross-sectional structural schematic diagram of the present invention; Figure 3 yes Figure 2 A magnified structural diagram of point A in the middle.

[0022] The attached diagram lists the components represented by each number as follows: 1. Upper template; 2. Lower template; 3. Injection port; 4. Injection hole; 5. Injection cavity; 6. Mounting cavity; 7. Electric telescopic rod; 8. Sliding plate; 9. Cutting blade; 10. Heating groove; 11. Heat-conducting plate; 12. Electric heating plate; 13. Sealing sleeve; 14. Scraper; 15. Limiting block; 16. Heating protrusion. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings.

[0024] In the description of this disclosure, it should be understood that the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the disclosed product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this disclosure 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. Therefore, they should not be construed as limitations on this disclosure.

[0025] An injection mold that facilitates material injection, such as Figure 1-3 As shown, it includes an upper template 1 and a lower template 2. The top of the upper template 1 is provided with an injection port 3, and the bottom of the injection port 3 is provided with an injection hole 4. The end of the injection hole 4 away from the injection port 3 is connected to the injection cavity 5. Both sides of the injection hole 4 are provided with mounting cavities 6. The inner wall of the mounting cavity 6 is provided with an electric telescopic rod 7. The piston rod of the electric telescopic rod 7 is connected to a sliding plate 8. The end of the sliding plate 8 away from the electric telescopic rod 7 is provided with a cutting blade 9. The inner walls of the two sides of the injection hole 4 above the mounting cavity 6 are provided with heating grooves 10. The opening of the heating groove 10 is provided with a heat-conducting plate 11, and the back of the heat-conducting plate 11 is provided with an electric heating plate 12.

[0026] In one specific embodiment, such as Figure 2 and Figure 3 As shown, a sealing sleeve 13 is provided at the opening of the mounting cavity 6, and the cutting blade 9 can slide inside the sealing sleeve 13. The sealing sleeve 13 can completely block the mounting cavity 6, preventing the injection molding liquid from entering the mounting cavity 6 during injection molding. A scraper 14 is provided on the inner wall of the sealing sleeve 13. The scraper 14 is completely in contact with the surface of the cutting blade 9. The scraper 14 can scrape off the injection molding liquid on the surface of the cutting blade 9, avoiding the waste of injection molding liquid.

[0027] Furthermore, a limiting block 15 is provided on the inner wall of the mounting cavity 6. When the two cutting blades 9 are in contact, the sliding plate 8 comes into contact with the limiting block 15. The limiting block 15 can limit the sliding plate 8 and prevent the two cutting blades 9 from colliding too much and causing damage. A buffer pad is provided on the outer wall of the limiting block 15 near the sliding plate 8. The buffer pad is made of silicone. The buffer pad can play a good buffering role when the sliding plate 8 contacts the limiting block 15, reducing the wear between the sliding plate 8 and the limiting block 15.

[0028] It is worth mentioning that, such as Figure 2 and Figure 3As shown, there are multiple electric heating plates 12, which are evenly distributed on the surface of the heat-conducting sheet 11. Multiple electric heating plates 12 can heat multiple points of the heat-conducting sheet 11, thereby improving the heating rate. The outer wall of the electric heating plate 12 is provided with heating protrusions 16, and the outer wall of the heat-conducting sheet 11 is provided with heat-conducting grooves. The heating protrusions 16 are adapted to the heat-conducting grooves. The heating protrusions 16 can increase the contact area between the electric heating plate 12 and the heat-conducting sheet 11, thereby improving the heat conduction rate.

[0029] The working process and beneficial effects of this utility model are as follows: During use, the injection liquid flows from the injection port 3 through the injection hole 4 into the injection cavity 5. After injection is completed, the piston rod of the electric telescopic rod 7 is extended, and the two cutting blades 9 move relative to each other to cut off the injection liquid. At this time, the electric heating plate 12 is turned on to heat the liquid. The electric heating plate 12 transfers heat to the heat-conducting plate 11, which heats the injection liquid in the residual groove injection hole 4 to prevent the residual liquid from solidifying and to prevent the injection hole 4 from being blocked, thus improving the convenience of subsequent injection.

[0030] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. An injection mold for convenient material injection, comprising an upper mold plate (1) and a lower mold plate (2), wherein the top of the upper mold plate (1) is provided with an injection port (3), and the bottom of the injection port (3) is provided with an injection hole (4), wherein the end of the injection hole (4) away from the injection port (3) is connected to an injection cavity (5), characterized in that: The injection hole (4) has an installation cavity (6) on both sides. The inner wall of the installation cavity (6) is provided with an electric telescopic rod (7). The piston rod of the electric telescopic rod (7) is connected to a sliding plate (8). A cutting blade (9) is provided at the end of the sliding plate (8) away from the electric telescopic rod (7). Heating grooves (10) are provided on both inner walls of the injection hole (4) above the mounting cavity (6). A heat-conducting plate (11) is provided at the opening of the heating groove (10), and an electric heating plate (12) is provided on the back of the heat-conducting plate (11).

2. The injection mold for convenient material injection according to claim 1, characterized in that: A sealing sleeve (13) is provided at the opening of the mounting cavity (6), and the cutting blade (9) can slide inside the sealing sleeve (13).

3. The injection mold for convenient material injection according to claim 2, characterized in that: The inner wall of the sealing sleeve (13) is provided with a scraper (14), which is in complete contact with the surface of the cutting blade (9).

4. The injection mold for convenient material injection according to claim 3, characterized in that: The inner wall of the mounting cavity (6) is provided with a limiting block (15). When the two cutting blades (9) are in contact, the sliding plate (8) comes into contact with the limiting block (15).

5. The injection mold for convenient material injection according to claim 4, characterized in that: The limiting block (15) is provided with a buffer pad near the outer wall of the sliding plate (8), and the buffer pad is made of silicone.

6. The injection mold for convenient material injection according to claim 1, characterized in that: The number of electric heating plates (12) is multiple, and the multiple electric heating plates (12) are distributed at equal distances on the surface of the heat-conducting sheet (11).

7. The injection mold for convenient material injection according to claim 6, characterized in that: The outer wall of the electric heating plate (12) is provided with a heating protrusion (16), and the outer wall of the heat-conducting sheet (11) is provided with a heat-conducting groove. The heating protrusion (16) is adapted to the heat-conducting groove.

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