Filter injection mold with replaceable core
By designing a filter injection mold with a quick-change mold core, and using hydraulic telescopic rods and fixed tie rods to simplify the mold closing and disassembly process, the problem of complex and time-consuming mold core replacement in traditional molds is solved, thereby improving production efficiency and reducing the risk of equipment damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANYANG MEIBAO ENVIRONMENTAL PROTECTION EQUIP
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-29
Smart Images

Figure CN224296417U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, and in particular to a filter injection mold with a quick-change mold core. Background Technology
[0002] In the filter manufacturing industry, injection molds are key equipment for manufacturing filters. With the continuous growth of market demand for filters and the increasing diversification of filter types, the performance requirements for filter injection molds are also getting higher and higher. Traditional filter injection molds have revealed many problems in actual use and are difficult to meet the needs of modern production.
[0003] The injection molding process for traditional filter injection molds is usually quite cumbersome and complex. When it is necessary to change the mold core to produce different models of filters, operators often need to use a variety of tools and spend a lot of time and effort to disassemble multiple parts of the mold in order to remove the old mold core and install the new mold core. This not only increases production downtime and reduces production efficiency, but also requires a high level of technical skill from the operators. If the operation is not done properly, it is easy to damage the mold parts and increase equipment maintenance costs.
[0004] With the continuous development of filter manufacturing technology and increasingly fierce market competition, developing a filter injection mold that can quickly change the mold core has become a problem that the industry needs to solve. Utility Model Content
[0005] In view of the above, with the continuous development of filter production technology and the increasingly fierce market competition, the development of a filter injection mold that can quickly change the mold core has become a problem that the industry needs to solve, and this utility model is proposed.
[0006] Therefore, the purpose of this utility model is : The left and right sealing templates are installed in the sealing constraint grooves inside the lower mold. The hydraulic telescopic rod pulls the left sealing template through the fixed tie rod. Then, the upper mold is installed on one side of the lower mold, completing the mold closing operation. When different models of filters need to be produced, the left sealing template and its connected fixed mold core are first removed from the sealing constraint groove. After replacing the fixed mold core with the required model, the left sealing template is placed back into the sealing constraint groove, and the fixed tie rod and hydraulic telescopic rod are connected. The next round of injection molding production can then proceed. This device can efficiently and quickly change the fixed mold core, thereby reducing the difficulty of operation for workers and improving production efficiency.
[0007] To solve the above technical problems, this utility model provides the following technical solution: a filter injection mold with quick mold core replacement, including a mold fixing base and a lower mold on one side of the mold fixing base, wherein two limiting fixing blocks are provided on the inner side of the lower mold, and a fixing constraint block is provided on one side of each limiting fixing block;
[0008] The fixing component includes a sealing left template installed inside the lower mold, a fixing mold core on one side of the sealing left template, and a sealing mold on one side of the fixing mold core;
[0009] The movable component includes a guide constraint plate mounted on one side of two fixed constraint blocks, a hydraulic cylinder on one side of the guide constraint plate, and a hydraulic telescopic rod on one side of the hydraulic cylinder.
[0010] As a preferred embodiment of the filter injection mold with quick-change mold core described in this utility model, two sealing constraint grooves are opened on the inner side of the lower mold, and a sealing left template is provided on the inner side of part of the sealing constraint groove, and a sealing right template is provided on the inner side of part of the sealing constraint groove.
[0011] As a preferred embodiment of the filter injection mold with quick-change mold core described in this utility model, wherein: an injection constraint groove is provided on the inner side of the lower mold, the injection constraint groove is connected to two sealing constraint grooves, and one end of the sealing mold is connected to the sealing right template.
[0012] As a preferred embodiment of the filter injection mold with quick-change mold core described in this utility model, wherein: a filter housing is provided inside the injection constraint groove, the filter housing is sleeved on the corresponding sealing mold, and an upper mold is provided on one side of the lower mold.
[0013] As a preferred embodiment of the filter injection mold with quick-change mold core described in this utility model, the upper mold is provided with a mold fixing plate on one side, the filter housing is provided on one side of the upper mold, and the sealing left template and sealing right template are provided on the inner side of the upper mold.
[0014] As a preferred embodiment of the filter injection mold with quick-change mold core described in this utility model, the left sealing template is provided with a fixed sleeve, the fixed sleeve is provided with a fixed tie rod inside, and one end of the hydraulic telescopic rod passes through the guide constraint plate and is suspended in the air.
[0015] As a preferred embodiment of the filter injection mold with quick-change mold core described in this utility model, one end of the fixed tie rod is connected to the hydraulic telescopic rod, and an injection port is opened on the mold fixing plate.
[0016] The beneficial effects of this utility model are:
[0017] The left and right sealing templates are installed in the sealing constraint grooves inside the lower mold. The hydraulic telescopic rod pulls the left sealing template through the fixed tie rod. Then, the upper mold is installed on one side of the lower mold, completing the mold closing operation. When different models of filters need to be produced, the left sealing template and its connected fixed mold core are first removed from the sealing constraint groove. After replacing the fixed mold core with the required model, the left sealing template is placed back into the sealing constraint groove, and the fixed tie rod and hydraulic telescopic rod are connected. The next round of injection molding production can then proceed. This device can efficiently and quickly change the fixed mold core, thereby reducing the difficulty of operation for workers and improving production efficiency. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0020] Figure 2 This is a partial structural diagram of the present utility model.
[0021] Figure 3 This is a schematic diagram of the inner structure of the lower mold of this utility model.
[0022] Figure 4 This is a schematic diagram of the fixed mold core structure of this utility model.
[0023] Figure 5 This is a schematic diagram of the sealing left template structure of this utility model.
[0024] Figure 6 This is a schematic diagram of the sealing right template structure of this utility model.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Mold fixing base; 2. Lower mold; 3. Upper mold; 4. Mold fixing plate; 5. Injection port; 6. Limiting fixing block; 7. Fixing constraint block; 8. Guide constraint plate; 9. Hydraulic cylinder; 10. Hydraulic telescopic rod; 11. Sealed left template; 12. Fixing sleeve; 13. Fixing mold core; 14. Sealed right template; 15. Sealed constraint groove; 16. Injection constraint groove; 17. Filter housing; 18. Sealed mold. Detailed Implementation
[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0028] Example 1
[0029] Reference Figure 1-4 This is the first embodiment of the present invention, which provides a filter injection mold with a quick-change mold core, including a mold fixing base 1 and a lower mold 2 on one side of the mold fixing base 1. The lower mold 2 is provided with two limiting fixing blocks 6 inside, and each limiting fixing block 6 is provided with a fixing constraint block 7 on one side. It includes a sealing left template 11 installed inside the lower mold 2, a fixing mold core 13 on one side of the sealing left template 11, a sealing mold 18 on one side of the fixing mold core 13, and two sealing constraint grooves 15 opened inside the lower mold 2. The sealing left template 11 is provided inside part of the sealing constraint groove 15, and the sealing right template 14 is provided inside part of the sealing constraint groove 15.
[0030] The lower mold 2 has an injection constraint groove 16 on its inner side, which is connected to two sealing constraint grooves 15. One end of the sealing mold 18 is connected to the sealing right template 14. The injection constraint groove 16 has a filter housing 17 on its inner side, which is fitted onto the corresponding sealing mold 18. The lower mold 2 has an upper mold 3 on one side.
[0031] Example 2
[0032] Reference Figure 3-6 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that it includes a guide constraint plate 8 installed on one side of the two fixed constraint blocks 7, a hydraulic cylinder 9 on one side of the guide constraint plate 8, a hydraulic telescopic rod 10 on one side of the hydraulic cylinder 9, a mold fixing plate 4 on one side of the upper mold 3, a filter housing 17 on one side located inside the upper mold 3, and a sealing left template 11 and a sealing right template 14 located inside the upper mold 3.
[0033] A fixed sleeve 12 is provided on one side of the sealed left template 11. A fixed tie rod is provided inside the fixed sleeve 12. One end of the hydraulic telescopic rod 10 passes through the guide constraint plate 8 and is suspended in the air. One end of the fixed tie rod is connected to the hydraulic telescopic rod 10. An injection port 5 is opened on the mold fixing plate 4.
[0034] When using this filter injection mold with quick-change mold core, first place the mold fixing base 1 in a suitable working position and fix it. Then, install the sealing left template 11 and the sealing right template 14 in the sealing constraint groove 15 inside the lower mold 2, respectively. Install the fixing mold core 13 on one side of the sealing left template 11, and then install the sealing mold 18 on one side of the fixing mold core 13, and connect one end of it to the sealing right template 14. At this time, the fixing tie rod in the fixing sleeve 12 on one side of the sealing left template 11 is connected to the hydraulic telescopic rod 10.
[0035] The hydraulic telescopic rod 10 passes through the guide constraint plate 8, which is installed on one side of the two fixed constraint blocks 7. The fixed constraint blocks 7 are located on one side of the limiting fixed block 6, and the limiting fixed block 6 is set inside the lower mold 2. When the hydraulic cylinder 9 is activated, it pushes the hydraulic telescopic rod 10 to extend. The hydraulic telescopic rod 10 pulls the sealing left template 11 through the fixed pull rod, causing it to move towards the sealing right template 14 within the sealing constraint groove 15, thereby squeezing the sealing mold 18. This causes the sealing mold 18 to fit tightly with the sealing left template 11 and the sealing right template 14, achieving a seal inside the mold.
[0036] Next, the upper mold 3 is installed on one side of the lower mold 2, so that one side of the filter housing 17 is located inside the upper mold 3. At the same time, the sealing left template 11 and the sealing right template 14 are also located inside the upper mold 3, completing the mold closing operation. After the mold is closed, the injection mold is injected into the mold through the injection port 5 on the mold fixing plate 4. The injection mold flows into the gap between the injection constraint groove 16 and the sealing mold 18. After filling and cooling, the filter housing 17 is formed. During the injection process, the sealing structure ensures that the injection mold does not leak, ensuring the molding quality of the product.
[0037] After injection, wait for the injection liquid to cool and solidify. After cooling, first remove the upper mold 3, then start the hydraulic cylinder 9 to retract the hydraulic telescopic rod 10. The hydraulic telescopic rod 10 drives the sealing left template 11 to move away from the sealing right template 14 through the fixed pull rod, releasing the pressure on the sealing mold 18, so that the sealing mold 18, the fixed mold core 13 and the filter housing 17 can be separated, making it easier to remove the formed filter product.
[0038] When different models of filters need to be produced, the mold core can be quickly replaced. First, the sealing left template 11 and its connected fixed mold core 13 are removed from the sealing constraint groove 15. After replacing the fixed mold core 13 of the required model, the sealing left template 11 is placed back into the sealing constraint groove 15, and the fixed tie rod and hydraulic telescopic rod 10 are connected. Then, the next round of injection molding production can be carried out.
[0039] The remaining structure is the same as that in Example 1.
[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A filter injection mold with a quick-change mold core, characterized in that: It includes a mold fixing base (1) and a lower mold (2) on one side of the mold fixing base (1). The lower mold (2) is provided with two limiting fixing blocks (6) on the inner side, and each limiting fixing block (6) is provided with a fixing constraint block (7) on one side. The fixing component includes a sealing left template (11) installed inside the lower mold (2), a fixing core (13) is provided on one side of the sealing left template (11), and a sealing mold (18) is provided on one side of the fixing core (13); The active component includes a guide constraint plate (8) installed on one side of two fixed constraint blocks (7), a hydraulic cylinder (9) is provided on one side of the guide constraint plate (8), and a hydraulic telescopic rod (10) is provided on one side of the hydraulic cylinder (9).
2. The filter injection mold with quick-change mold core according to claim 1, characterized in that: Two sealing constraint grooves (15) are opened on the inner side of the lower mold (2). A sealing left template (11) is provided on the inner side of part of the sealing constraint groove (15), and a sealing right template (14) is provided on the inner side of part of the sealing constraint groove (15).
3. A filter injection mold with a quick-change mold core according to claim 2, characterized in that: The lower mold (2) has an injection constraint groove (16) on its inner side. The injection constraint groove (16) is connected to two sealing constraint grooves (15). One end of the sealing mold (18) is connected to the sealing right template (14).
4. A filter injection mold with a quick-change mold core according to claim 3, characterized in that: The inner side of the injection molding constraint groove (16) is provided with a filter housing (17), which is sleeved on the corresponding sealing mold (18). The lower mold (2) is provided with an upper mold (3) on one side.
5. A filter injection mold with a quick-change mold core according to claim 1, characterized in that: The upper mold (3) is provided with a mold fixing plate (4) on one side, the filter housing (17) is provided on one side inside the upper mold (3), and the sealing left template (11) and sealing right template (14) are provided inside the upper mold (3).
6. A filter injection mold with a quick-change mold core according to claim 5, characterized in that: A fixed sleeve (12) is provided on one side of the sealing left template (11), and a fixed tie rod is provided inside the fixed sleeve (12). One end of the hydraulic telescopic rod (10) passes through the guide constraint plate (8) and is suspended in the air.
7. A filter injection mold with a quick-change mold core according to claim 6, characterized in that: One end of the fixed tie rod is connected to the hydraulic telescopic rod (10), and an injection port (5) is opened on the mold fixing plate (4).