Hot runner structure for solving salivation of sprue bush
By designing a sprue bushing structure with a manifold block, hot runner nozzle, and movable block, the problem of drooling at the gate was solved, improving injection molding quality and efficiency, and achieving a stable injection molding process.
Patent Information
- Application Number
- CN202520495997.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-20
AI Technical Summary
In existing technologies, drooling at the gate affects injection molding quality and reduces production efficiency, especially in two-color injection molds, where the hot runner connecting the side gate will have the glue flowing out in the molten state, causing drooling.
A hot runner structure with a sprue bushing is adopted, including a flow divider block, a hot runner nozzle, a movable block, and a plug. Through the step and guide groove design of the movable block, the glue can flow in one direction, preventing the glue from flowing out of the funnel hole. Combined with the fixing of the sealing ring and the end cap, it is ensured that the glue does not overflow during the mold closing and opening process.
It effectively avoids drooling at the gate, improves injection molding quality and production efficiency, and ensures the stability of the injection molding process and the quality of molding.
Smart Images
Figure CN223948410U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to injection mold field, specifically, relate to a solution sprue bushing flow saliva hot runner structure. BACKGROUND
[0002] As Figure 1 The double-color injection mold shown in the drawing includes the vertical straight sprue opened by the panel and the side sprue opened by the side of the fixed mold plate, needs vertical injection molding machine and side battery injection molding machine combination to carry out injection when injecting, needs separating side battery injection molding machine and side sprue before opening the mold to realize the opening of the fixed mold plate, but the glue in the hot runner connected with side sprue will flow out of side sprue in the molten state, and the flow saliva phenomenon occurs at the sprue, which not only directly affects the injection quality of the subsequent mold, but also significantly reduces the production efficiency. UTILITARIAN CONTENT
[0003] The utility model provides a solution sprue bushing flow saliva hot runner structure aims at solving the technical problem mentioned in the above technical background.
[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a solution sprue bushing flow saliva hot runner structure, including shunt block, hot runner nozzle head, one end of hot runner nozzle head is connected with shunt block, hot runner nozzle head includes base and plug, the base is opened with ladder hole, the movable block is arranged in the ladder hole, the plug is opened with funnel hole, the plug covers the ladder hole, the movable block is provided with step in the middle, the movable block is opened with a plurality of flow guide grooves along its length direction, the end of movable block close to the plug is semispherical taper head.
[0005] Further, the outer side of the plug is opened with a ring-shaped sealing groove, and a sealing ring is installed in the sealing groove.
[0006] Further, the hot runner nozzle head is T-shaped in cross section, and an end cover is further arranged at the end of the hot runner nozzle head away from the shunt block, the end cover is opened in the middle, and the end cover is pressed against the hot runner nozzle head and pressed against the shunt block.
[0007] Further, the flow guide groove includes three, which are equidistantly arranged around the outer surface of the movable block.
[0008] Further, the shunt block is opened with mutually perpendicular shunt pipes, and one end of the shunt pipe is communicated with the hot runner nozzle head.
[0009] Compared with the prior art, the utility model has the beneficial effects that:
[0010] The utility model discloses a shunt block, hot runner nozzle head, hot runner nozzle all one end connects the shunt block, the other end is used for connecting side battery injection molding machine, and the hot runner nozzle head includes base and plug, and the base is opened the ladder hole, and the movable setting movable block in the ladder hole, and the plug is opened the funnel hole, and the plug covers the ladder hole, and the movable block middle part sets up the step, and the movable block is opened a plurality of flow guide grooves along its length direction, and the movable block one end near the plug is hemispherical taper head. When the mold closes, the side battery injection molding machine aims at the funnel hole of plug, and injects glue into the ladder hole, and the glue will push the step of movable block and touch the step in the ladder hole, and the glue enters the shunt block from the flow guide groove, and when the glue in the shunt block flows out, the movable block will push and block the funnel hole, that is, the one-way flow of glue, avoids the glue from the funnel hole and flows out and causes the drooling phenomenon at the gate, improves injection quality and efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0011] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment needed to use the drawing briefly introduced, should understand, the following drawing only shows some embodiments of the utility model, therefore should not be regarded as the limited scope, for ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.
[0012] Figure 1 It is the direct gate and side gate structure schematic diagram of mould;
[0013] Figure 2 It is the hot runner structure schematic diagram of the utility model for solving the gate sleeve drooling;
[0014] Figure 3 It is the shunt block and hot runner nozzle head structure schematic diagram of the utility model for solving the gate sleeve drooling hot runner structure;
[0015] Figure 4 It is the shunt block and hot runner nozzle head exploded view schematic diagram of the utility model for solving the gate sleeve drooling hot runner structure;
[0016] Figure 5 It is the hot runner nozzle head sectional view of the utility model for solving the gate sleeve drooling hot runner structure;
[0017] Figure 6 It is the movable block structure schematic diagram of the utility model for solving the gate sleeve drooling hot runner structure;
[0018] Figure 7 It is the plug structure schematic diagram of the utility model for solving the gate sleeve drooling hot runner structure.
[0019] Main element symbol explanation
[0020] 10. fixed mold plate; 101. flow distribution block; 102. hot runner nozzle; 1021. base; 1022. stepped hole; 1023. plug; 1024. funnel hole; 1025. movable block; 1026. half-spherical cone; 1027. flow guide groove; 103. end cover;
[0021] 20. sprue;
[0022] 30. side gate. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0024] In the present application, unless explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0025] In the present application, unless explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0026] EMBODIMENT
[0027] Referring to Figures 2-7 The utility model discloses a solution sprue bushing saliva hot runner structure, including the shunt piece 101, the hot runner nozzle head 102, one end of hot runner nozzle head 102 embeds the shunt piece 101, installs shunt piece 101 and hot runner nozzle head 102 in fixed mold plate 10, specifically, the cross section of hot runner nozzle head 102 is T-shaped, the end cover 103 is further provided to one end of hot runner nozzle head 102 away from the shunt piece 101, the middle hole of end cover 103, end cover 103 is pressed in shunt piece 101 tightly hot runner nozzle head 102, end cover 103 is locked in fixed mold plate 10 on both sides, end cover 103 can prevent hot runner nozzle head 102 from shunt piece 101 due to the pressure and cause to come off, with the effect of further fixing hot runner nozzle head 102.
[0028] Further, the shunt piece 101 is provided with mutually perpendicular shunt pipes, one end of the shunt pipes is communicated with the hot runner nozzle head 102, the stepped hole 1022 of the hot runner nozzle head 102 is aligned with the shunt pipes, and the hot melt adhesive is injected into multiple cavities through the shunt pipes to improve the injection efficiency.
[0029] Referring to Figures 2-7 As shown, the hot runner nozzle head 102 comprises a base 1021 and a plug 1023, the base 1021 is provided with a stepped hole 1022, a movable block 1025 is movably arranged in the stepped hole, the plug 1023 is provided with a funnel hole 1024, the plug 1023 covers the stepped hole 1022, a step is arranged in the middle of the movable block 1025, a plurality of flow guide grooves 1027 are arranged in the movable block 1025 along the length direction of the movable block 1025, and one end of the movable block 1025 close to the plug 1023 is a hemispherical taper head 1026. The movable block 1025 is arranged in the stepped hole 1022, the plug 1023 blocks the large-diameter end of the stepped hole 1022, the funnel mouth of the funnel hole 1024 of the plug 1023 faces the stepped hole 1022, one end of the hemispherical taper head 1026 of the movable block 1025 faces the funnel hole 1024, during injection molding, the side fort injection molding machine is aligned with the funnel hole 1024 of the plug 1023, and the glue is injected into the stepped hole 1022, the glue pushes the step of the movable block 1025 to abut against the step in the stepped hole 1022, and the glue enters the shunt piece 101 from the flow guide grooves 1027. When the side fort injection molding machine is away from the funnel hole 1024, the glue remaining in the shunt piece 101 flows outwards, pushes the hemispherical taper head 1026 of the movable block 1025 to block the funnel hole 1024, that is, the one-way flow of the glue, avoids the glue from flowing out of the funnel hole 1024 to cause the saliva phenomenon at the sprue, and improves the injection molding quality and efficiency.
[0030] Further, the outer side of the plug 1023 is provided with an annular sealing groove, and a sealing ring is arranged in the sealing groove. Since the glue has pressure during the injection process, the sealing ring can prevent the glue from overflowing and plays a sealing role.
[0031] In the embodiment, the flow guide grooves 1027 include three, which are equidistantly arranged around the outer surface of the movable block 1025, the uniformly distributed flow guide grooves 1027 make the glue flow uniformly, so that the injection molding is more stable, and the quality of the injection molded product is further improved.
[0032] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A solution to the die bushing galling hot runner structure, characterized in that: The application relates to a hot runner nozzle head and a flow distribution block.
2. The solution die bushing drool hot runner structure of claim 1, wherein: The outer side of the plug is provided with a ring-shaped sealing groove, and a sealing ring is arranged in the sealing groove.
3. The solution die tip galling hot runner structure of claim 1, wherein: The cross section of the hot runner nozzle head is in T shape, and an end cover is further arranged at the end of the hot runner nozzle head away from the flow distribution block, a hole is formed in the middle of the end cover, and the end cover is used for pressing the hot runner nozzle head against the flow distribution block.
4. The solution die swell hot runner structure of claim 1 wherein: The flow guide grooves include three grooves which are equidistantly arranged around the outer surface of the movable block.
5. The solution die tip galling hot runner structure of claim 1 wherein: The flow distribution block is provided with flow distribution pipes which are perpendicular to each other, and one end of the flow distribution pipes is communicated with the hot runner nozzle head.