A negative pressure injection mold for filter processing
By introducing a negative pressure mechanism into the injection mold, the problem of incomplete gas removal in traditional injection molds is solved, and the efficient integration of injection molds and filters and the improvement of product quality is achieved.
Patent Information
- Application Number
- CN202510019435.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-04-08
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional injection molds cannot effectively eliminate gas inside the mold during the injection molding process, resulting in insufficient fusion of injection molding and filter screen, low fusion efficiency, and easy bubbles to occur inside the molding raw materials, affecting the structural strength, performance and reliability of the product.
Design a negative pressure injection mold. By establishing a negative pressure state between the upper mold and the lower mold, the negative pressure machine is used to extract the gas inside the mold to ensure that the injection molding liquid can evenly fill and tightly wrap the filter to avoid bubble generation.
It improves the fusion efficiency and effect of injection molding and filter mesh, enhances the structural strength and usage performance of the product, reduces the difficulty of subsequent processing, and improves the appearance quality and reliability of the product.
Smart Images
Figure CN119773140A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of filter screen processing, and in particular to a negative pressure injection mold for filter screen processing. Background Art
[0002] In the field of filter processing, traditional injection molds often face the problem of poor fusion between the injection material and the filter during the injection molding process. Since the gas inside the mold cannot be effectively removed during injection molding, it often leads to insufficient fusion between the injection material and the filter, low fusion efficiency, and poor fusion effect. This not only affects the overall structural strength and performance of the product, but also increases the difficulty of subsequent processing and treatment. At the same time, the bubble problem inside the molding material is also a chronic disease that traditional injection molds cannot avoid. These bubbles not only destroy the appearance quality of the product, but may also reduce the service life and reliability of the product. Therefore, we propose a negative pressure injection mold for filter processing to solve the above problems. Summary of the invention
[0003] In view of the deficiencies in the prior art, the present invention provides a negative pressure injection mold for filter screen processing, which solves the problem that during injection molding, the gas inside the mold cannot be effectively removed, which often leads to insufficient fusion between the injection material and the filter screen, low fusion efficiency, and poor fusion effect. This not only affects the overall structural strength and performance of the product, but also increases the difficulty of subsequent processing and treatment. At the same time, the bubble problem inside the molding material is also a chronic disease that is difficult to avoid with traditional injection molds. These bubbles not only destroy the appearance quality of the product, but may also reduce the service life and reliability of the product.
[0004] To achieve the above object, the technical solution adopted by the present invention is:
[0005] A negative pressure injection mold for filter processing, comprising a lower fixed plate, an ejector base plate is installed on the upper surface of the lower fixed plate, an ejector panel is installed on the upper end of the ejector base plate, a support plate is installed on the upper end of the ejector panel, bolts are installed between the lower fixed plate, the ejector base plate, the ejector panel and the support plate through threads, a lower template is installed on the upper end of the support plate, a lower mold is installed on the inner upper end of the lower template, an upper template is fitted on the upper end of the lower template, an upper mold is installed on the inner lower end of the lower template, and the upper mold is snap-fitted with the lower mold, and the upper mold and the lower mold are connected, and the upper fixed plate is installed on the upper end of the upper template through bolts.
[0006] Preferably, a plurality of support columns are installed between the ejector bottom plate and the ejector panel, the upper and lower ends of the support columns are respectively fitted between the support plate and the lower fixing plate, and bolts are threadedly installed between the lower ends of the support columns and the lower fixing plate.
[0007] Preferably, mold feet are respectively installed at both ends of the upper surface of the lower fixed plate, the upper ends of the mold feet are in contact with the support plate, and the ejector bottom plate and the ejector face plate are located between the mold feet.
[0008] Preferably, bolts are threadedly installed between the lower fixing plate, the mold foot and the support plate.
[0009] Preferably, a lower mold inner core is installed in the middle of the upper end of the support plate by bolts, and the lower mold inner core is connected to the lower mold.
[0010] Preferably, a plurality of ejectors are movably installed between the ejector panel and the support plate, the upper ends of the ejectors are snap-fitted into the interior of the lower template, a plurality of bolts are threadedly installed on the upper end of the lower template, and the lower ends of the bolts are respectively installed in the interior of the ejectors.
[0011] Preferably, disc springs are respectively installed on the outer sides of the ejector rod bodies between the support plate and the ejector panel.
[0012] Preferably, a plurality of guide rods are installed through the interior of the support plate, and the upper ends of the guide rods are movably installed through the interior of the lower template, the upper template and the upper fixed plate.
[0013] Preferably, a positioning plate is mounted on the upper end of one side of the support plate, and the upper end of the positioning plate is respectively fitted between the lower template and the upper template.
[0014] Preferably, bolts are respectively installed at the upper and lower ends of the positioning plate through threads, and the bolts are respectively installed inside the support plate and the upper template.
[0015] 1. In the present invention, the user first places the filter screen inside the lower mold, and then the user can install the upper mold screen along the guide rod, so that the upper mold screen drives the upper mold screen to move downward, so that the upper mold screen cooperates with the lower mold screen to engage the filter screen, and then after the upper mold screen and the lower mold screen are installed, the gas between the upper mold screen and the lower mold screen can be extracted by the negative pressure machine to keep the negative pressure inside, and then the injection liquid can be evenly filled between the upper mold screen and the lower mold screen along the feed pipe, and the outside of the filter screen can be tightly wrapped, which not only improves the fusion efficiency and fusion effect, but also avoids the generation of bubbles between the molding materials.
[0016] 2. In the present invention, the upper mold plate and the support plate are fixed by the positioning plate and the bolts, so that the whole is more stable during the injection molding process, and the gap between the upper mold and the lower mold will not be generated due to the push of the injection liquid, thereby avoiding the leakage of the injection liquid. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention;
[0018] Figure 2 It is a front view structural schematic diagram of the present invention;
[0019] Figure 3 It is a side structural schematic diagram of the present invention;
[0020] Figure 4 yes Figure 2 A three-dimensional schematic diagram of the cross-sectional structure at AA in the middle;
[0021] Figure 5 yes Figure 2 A three-dimensional schematic diagram of the cross-sectional structure at the middle BB;
[0022] Figure 6 yes Figure 2 A three-dimensional schematic diagram of the cross-sectional structure at CC in the middle;
[0023] Figure 7 yes Figure 3 A three-dimensional schematic diagram of the cross-sectional structure at DD in the middle;
[0024] Figure 8 yes Figure 3 Schematic diagram of the cross-sectional structure at EE in the middle.
[0025] In the figure: 1. lower fixed plate; 2. mold foot; 3. ejector base plate; 4. ejector panel; 5. support plate; 6. lower mold plate; 7. upper mold plate; 8. upper fixed plate; 9. lower mold; 10. upper mold; 11. ejector; 12. disc spring; 13. lower mold inner core; 14. guide rod; 15. positioning plate; 16. support column. DETAILED DESCRIPTION
[0026] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 work are within the scope of protection of the present invention.
[0027] like Figures 1 to 8As shown, a negative pressure injection mold for filter processing includes a lower fixed plate 1, an ejector base plate 3 is installed on the upper surface of the lower fixed plate 1, an ejector panel 4 is installed on the upper end of the ejector base plate 3, a support plate 5 is installed on the upper end of the ejector panel 4, bolts are installed between the lower fixed plate 1, the ejector base plate 3, the ejector panel 4 and the support plate 5 through threads, a lower template 6 is installed on the upper end of the support plate 5, a lower mold 9 is installed on the inner upper end of the lower template 6, an upper template 7 is fitted on the upper end of the lower template 6, an upper mold 10 is installed on the inner lower end of the lower template 6, and the upper mold 10 is snap-fitted with the lower mold 9, and the upper fixed plate 8 is installed on the upper end of the upper template 7 through bolts.
[0028] like Figures 4 to 8 As shown, a plurality of support columns 16 are installed through the ejector bottom plate 3 and the ejector panel 4, and the upper and lower ends of the support columns 16 are respectively fitted between the support plate 5 and the lower fixed plate 1, and bolts are installed between the lower end of the support column 16 and the lower fixed plate 1 through threads, and mold feet 2 are installed at both ends of the upper surface of the lower fixed plate 1, and the upper end of the mold foot 2 is fitted with the support plate 5. The ejector bottom plate 3 and the ejector panel 4 are located between the mold feet 2, and bolts are installed between the lower fixed plate 1, the mold foot 2 and the support plate 5 through threads. A lower mold inner core 13 is installed in the middle of the upper end of the support plate 5 through bolts, and the lower mold inner core 13 is connected to the lower mold 9. A plurality of ejectors 11 are movably installed through the ejector panel 4 and the support plate 5, and the ejector 11 The upper end is snap-fitted and installed inside the lower template 6, and a plurality of bolts are installed on the upper end of the lower template 6 through threads, and the lower ends of the bolts are respectively installed inside the ejector pin 11, and disc springs 12 are respectively installed on the outer side of the rod body of the ejector pin 11 located between the support plate 5 and the ejector panel 4. A plurality of guide rods 14 are snap-fitted and installed through the inside of the support plate 5, and the upper ends of the rod bodies of the guide rods 14 are respectively movably installed through the interior of the lower template 6, the upper template 7 and the upper fixed plate 8. A positioning plate 15 is fitted on the upper end of one side of the support plate 5, and the upper ends of the positioning plate 15 are respectively fitted between the lower template 6 and the upper template 7. Bolts are respectively installed on the upper and lower ends of the positioning plate 15 through threads, and the bolts are respectively installed inside the support plate 5 and the upper template 7.
[0029] The user places the filter screen inside the lower mold 9, and then installs the upper mold plate 7 and the upper fixing plate 8 along the guide rod 14, so that the upper mold plate 7 drives the upper mold 10 and the filter screen to fit with the lower mold 9. After the upper mold plate 7 and the upper mold 10 are installed, the user can place the positioning plate 15 on one side of the support plate 5 and the upper mold plate 7, and then install the positioning plate 15 through bolts, so that the positioning plate 15 can position the upper mold plate 7, the lower mold plate 6 and the support plate 5 to form a whole. Finally, the negative pressure machine can be started to allow the negative pressure machine to extract the gas between the upper mold 10 and the lower mold 9 to form a negative pressure state therebetween. Then the injection liquid can be filled between the upper mold 10 and the lower mold 9, so that the injection liquid and the outer side of the filter screen are tightly integrated, thereby avoiding the situation where holes are generated inside due to gas, improving the quality of the finished product, and thus realizing the injection molding process;
[0030] The disc spring 12 is used to cooperate with the ejector pin 11 for buffering to improve the overall stability.
[0031] The working principle of this negative pressure injection mold for filter processing:
[0032] When in use, the user first places the filter screen inside the lower mold 9, and then the user installs the upper mold plate 7 and the upper fixing plate 8 along the guide rod 14, so that the upper mold plate 7 drives the upper mold 10 and the filter screen to fit with the lower mold 9. Then, after the upper mold plate 7 and the upper mold 10 are installed, the user can place the positioning plate 15 on one side of the support plate 5 and the upper mold plate 7, and then install the positioning plate 15 through bolts, so that the positioning plate 15 can position the upper mold plate 7, the lower mold plate 6 and the support plate 5 to form a whole. Finally, the negative pressure machine can be started to allow the negative pressure machine to extract the gas between the upper mold 10 and the lower mold 9 to form a negative pressure state therebetween. Then the injection liquid can be filled between the upper mold 10 and the lower mold 9, so that the injection liquid and the outer side of the filter screen are tightly integrated to avoid the situation where holes are generated inside due to gas, thereby improving the quality of the finished product and realizing the injection molding process.
[0033] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.
Claims
1. A negative pressure injection mold for filter screen processing, comprising a lower fixing plate (1), characterized in that: The upper surface of the lower fixed plate (1) is installed with an ejector base plate (3), the upper end of the ejector base plate (3) is installed with an ejector panel (4), the upper end of the ejector panel (4) is installed with a support plate (5), bolts are installed between the lower fixed plate (1), the ejector base plate (3), the ejector panel (4) and the support plate (5) through threads, a lower template (6) is installed on the upper end of the support plate (5), a lower mold (9) is installed on the inner upper end of the lower template (6), an upper template (7) is installed on the upper end of the lower template (6), an upper mold (10) is installed on the inner lower end of the lower template (6), and the upper mold (10) is snap-fitted with the lower mold (9), and the upper end of the upper template (7) is installed with an upper fixed plate (8) through bolts.
2. The negative pressure injection mold for filter screen processing according to claim 1, characterized in that: A plurality of support columns (16) are installed between the ejector base plate (3) and the ejector panel (4); the upper and lower ends of the support columns (16) are respectively fitted between the support plate (5) and the lower fixing plate (1); and bolts are installed between the lower ends of the support columns (16) and the lower fixing plate (1) via threads.
3. The negative pressure injection mold for filter screen processing according to claim 1, characterized in that: Mold feet (2) are respectively installed at both ends of the upper surface of the lower fixed plate (1), the upper ends of the mold feet (2) are in contact with the support plate (5), and the ejector base plate (3) and the ejector face plate (4) are located between the mold feet (2).
4. A negative pressure injection mold for filter screen processing according to claim 3, characterized in that: Bolts are threadedly installed between the lower fixing plate (1), the mold foot (2) and the support plate (5).
5. The negative pressure injection mold for filter screen processing according to claim 1, characterized in that: A lower die inner core (13) is installed in the middle of the upper end of the support plate (5) via bolts, and the lower die inner core (13) is connected to the lower die (9).
6. The negative pressure injection mold for filter screen processing according to claim 1, characterized in that: A plurality of ejector pins (11) are movably installed between the ejector panel (4) and the support plate (5); the upper ends of the ejector pins (11) are snap-fitted and installed inside the lower template (6); a plurality of bolts are threadedly installed on the upper end of the lower template (6), and the lower ends of the bolts are respectively installed inside the ejector pins (11).
7. A negative pressure injection mold for filter screen processing according to claim 6, characterized in that: Disc springs (12) are respectively installed on the outer sides of the rod bodies of the ejector pins (11) located between the support plate (5) and the ejector pin panel (4).
8. The negative pressure injection mold for filter screen processing according to claim 1, characterized in that: A plurality of guide rods (14) are installed in a clamping manner through the interior of the support plate (5), and the upper ends of the guide rods (14) are movably installed through the interior of the lower template (6), the upper template (7) and the upper fixed plate (8).
9. The negative pressure injection mold for filter screen processing according to claim 1, characterized in that: A positioning plate (15) is fitted on the upper end of one side of the support plate (5), and the upper ends of the positioning plate (15) are fitted between the lower template (6) and the upper template (7) respectively.
10. A negative pressure injection mold for filter screen processing according to claim 9, characterized in that: Bolts are respectively installed at the upper and lower ends of the positioning plate (15) through threads, and the bolts are respectively installed inside the support plate (5) and the upper template (7).