Bent nozzle injection mold

By introducing an installation module and positioning structure into the curved nozzle injection mold, the problem of the inability to replace the liquid outlet core separately was solved, enabling low-cost maintenance and replacement.

CN223849825UActive Publication Date: 2026-01-30ZHONGSHAN SOUTH CHINA PACKAGING PROD CO LTD
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Patent Information

Application Number
CN202520294171.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-01-30
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

The existing liquid outlet core is integrally molded with the sliding module, which makes it impossible to remove and replace the liquid outlet core separately, resulting in high maintenance costs.

Method used

A curved nozzle injection mold was designed. By introducing an installation module between the liquid outlet core and the sliding module, the liquid outlet core and the sliding module can be detachably connected. The liquid outlet core can be detachably replaced using positioning holes, positioning pins and locking bolts.

Benefits of technology

This allows for the individual replacement of the liquid outlet core, reducing maintenance costs and improving mold maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of injection molds, in particular to a bent nozzle injection mold which comprises an upper mold core, a lower mold core, a slide module, a bent nozzle core and a mounting module, a lower mold cavity matched with the upper mold cavity to form a bent nozzle cavity is formed in the lower mold core; a slide connecting part is arranged on the slide module; the bent nozzle mold core comprises a pressing part mold core connected with the lower mold core and a liquid outlet part mold core connected with the slide module, and a liquid outlet connecting part is arranged on the liquid outlet part mold core; a slide mounting part and a liquid outlet mounting part are arranged on the mounting module, the slide mounting part is connected with the slide connecting part, and the liquid outlet mounting part is connected with the liquid outlet connecting part. According to the bent nozzle injection mold provided by the utility model, the liquid outlet part mold core is detachably connected with the slide module through the mounting module, so that when the liquid outlet part mold core needs to be replaced under the conditions of abrasion or breakage and the like, the liquid outlet part mold core can be easily disassembled and replaced, the slide module does not need to be replaced together, and the maintenance cost can be effectively saved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, specifically is a kind of bent mouth injection mold. BACKGROUND

[0002] Bent mouth is the extrusion component commonly used on washing and protecting product, generally adopts injection mold injection molding. Bent mouth includes pressing part and liquid outlet part, and correspondingly, pressing part core and liquid outlet part core are arranged on injection mold, and pressing part core and liquid outlet part core are independently arranged to facilitate demolding. The existing liquid outlet part core is integrally formed with line position module, and its structure is simple, but when the liquid outlet part core is worn or broken, it cannot be taken out and replaced alone, and only the line position module can be replaced as a whole. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a kind of bent mouth injection mold, solve the problem that the existing liquid outlet part core cannot be taken out and replaced alone due to the integrally formed with line position module of liquid outlet part core.

[0004] To solve the above problems, the utility model provides technical scheme as follows:

[0005] A kind of bent mouth injection mold, comprising:

[0006] Upper die kernel, it is equipped with upper die groove on it;

[0007] Lower die kernel, it is equipped with lower die groove on it, and the lower die groove is formed with the upper die groove and forms bent mouth cavity;

[0008] Line position module, it is equipped with line position connecting portion on it;

[0009] Bent mouth core, it includes pressing part core connected with the lower die kernel and liquid outlet part core connected with the line position module, and the liquid outlet part core is equipped with liquid outlet connecting portion;

[0010] Installation module, it is equipped with line position installation portion and liquid outlet installation portion on it, and the line position installation portion is connected with the line position connecting portion, and the liquid outlet installation portion is connected with the liquid outlet connecting portion.

[0011] As described above, a kind of bent mouth injection mold, the liquid outlet connecting portion is equipped with positioning hole, the axial direction of the positioning hole is perpendicular to the axial direction of the liquid outlet connecting portion, the positioning hole is equipped with positioning pin, and the liquid outlet installation portion includes plug-in hole matched with the liquid outlet connecting portion and plug-in hole matched with the positioning pin.

[0012] As described above, a kind of bent mouth injection mold, the line position installation portion includes bolt hole, the bolt hole is equipped with locking bolt, and the line position connecting portion includes locking hole matched with the locking bolt.

[0013] The bolt hole is provided with two, two bolt holes are provided on both sides of the plug hole, two bolt holes are communicated with the plug hole, and the distance between two bolt holes is greater than or equal to the length of the positioning pin.

[0014] The line position connecting part includes a mounting groove for embedding the mounting module, and the locking hole is communicated with the mounting groove.

[0015] The mounting groove is rectangular and is provided with R chamfers at four corners, and the mounting module is rectangular and is provided with C chamfers.

[0016] The pressing part core includes an inner layer core and an outer layer core arranged around the outer periphery of the inner layer core, the outer layer core is provided with a core passing groove for the liquid outlet part core, and the liquid outlet part core is provided with an arc surface matched with the side wall of the inner layer core at the end away from the liquid outlet connecting part.

[0017] The lower die groove is provided with a first ring groove between the outer layer core and the lower die groove, the outer layer core is provided with a second ring groove between the outer layer core and the inner layer core, and the second ring groove is provided with an ejection pipe.

[0018] The lower die core is provided with an injection flow channel, and the injection flow channel is communicated with the lower die groove.

[0019] The bending nozzle injection mold further comprises an inclined guide pillar, and the inclined guide pillar is connected with the line position module.

[0020] Compared with the prior art, the bending nozzle injection mold has the following advantages:

[0021] The bending nozzle injection mold provided by the utility model, the liquid outlet part core is detachably connected with the line position module through the mounting module, when the liquid outlet part core needs to be replaced due to wear or fracture, the line position connecting part of the mounting module is separated from the line position module, then the liquid outlet connecting part of the mounting module is separated from the liquid outlet part core, and the liquid outlet part core can be easily removed and replaced, and the line position module does not need to be replaced, so that the maintenance cost is effectively saved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 A decomposition view of the bent nozzle injection mold of the embodiment of the present application.

[0024] Figure 2 A partial structure decomposition view of the bent nozzle injection mold of the embodiment of the present application.

[0025] Figure 3 A partial structure cross-sectional view of the bent nozzle injection mold of the embodiment of the present application.

[0026] Figure 4 A structure schematic view of the row position module in the bent nozzle injection mold of the embodiment of the present application.

[0027] Figure 5 A structure schematic view of the liquid outlet part core in the bent nozzle injection mold of the embodiment of the present application.

[0028] Figure 6 A structure schematic view of the installation module in the bent nozzle injection mold of the embodiment of the present application.

[0029] Figure 7 A structure schematic view of the double-layer bent nozzle injection molded by the bent nozzle injection mold of the embodiment of the present application.

[0030] In which, the corresponding number of the reference signs is as follows:

[0031] 1, upper die core; 11, upper die groove; 2, lower die core; 21, lower die groove; 211, first ring groove; 212, second ring groove; 22, ejection tube; 23, injection flow channel; 3, row position module; 31, row position connecting part; 311, installation groove; 312, locking hole; 4, bent nozzle core; 41, pressing part core; 411, inner layer core; 412, outer layer core; 4121, through core groove; 42, liquid outlet part core; 421, liquid outlet connecting part; 4211, positioning hole; 422, positioning pin; 423, arc surface; 5, installation module; 51, row position installation part; 52, liquid outlet installation part; 521, plug-in hole; 522, plug-in hole; 53, locking bolt; 6, inclined guide column. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0033] Please refer to the drawings in the embodiments of the present application. Figure 1 to the drawings in the embodiments of the present application. Figure 7The embodiment provides a curved nozzle injection mold, which comprises an upper mold core 1, a lower mold core 2, a row position module 3, a curved nozzle core 4 and a mounting module 5, the upper mold core 1 is provided with an upper mold groove 11, the lower mold core 2 is provided with a lower mold groove 21 matched with the upper mold groove 11 to form a curved nozzle cavity, the row position module 3 is provided with a row position connecting part 31, the curved nozzle core 4 comprises a pressing part core 41 connected with the lower mold core 2 and a liquid outlet part core 42 connected with the row position module 3, the liquid outlet part core 42 is provided with a liquid outlet connecting part 421, the mounting module 5 is provided with a row position mounting part 51 and a liquid outlet mounting part 52, the row position mounting part 51 is connected with the row position connecting part 31, and the liquid outlet mounting part 52 is connected with the liquid outlet connecting part 421. The curved nozzle injection mold provided by the embodiment is characterized in that the liquid outlet part core 42 is detachably connected with the row position module 3 through the mounting module 5, when the liquid outlet part core 42 needs to be replaced due to wear or fracture, the row position mounting part 51 of the mounting module 5 is separated from the row position connecting part 31 on the row position module 3, then the liquid outlet mounting part 52 of the mounting module 5 is separated from the liquid outlet connecting part 421 of the liquid outlet part core 42, so that the liquid outlet part core 42 can be easily removed and replaced, and the row position module 3 does not need to be replaced, thereby effectively saving maintenance cost.

[0034] Further, for the curved nozzle with the arc-shaped or other specific shape of the liquid outlet part core 42, the mounting position and angle of the liquid outlet part core 42 are required to be high, in order to realize positioning and mounting of the liquid outlet part core 42, the liquid outlet connecting part 421 is provided with a positioning hole 4211, the axial direction of the positioning hole 4211 is perpendicular to the axial direction of the liquid outlet connecting part 421, the positioning hole 4211 is provided with a positioning pin 422, the liquid outlet mounting part 52 comprises a plug hole 521 matched with the liquid outlet connecting part 421 and a plug pin hole 522 matched with the positioning pin 422. Through cooperation of the positioning hole 4211, the positioning pin 422 and the plug pin hole 522, movement of the liquid outlet part core 42 in each direction can be effectively limited, movement of the liquid outlet part core 42 relative to the mounting module 5 can be effectively prevented, and meanwhile, rotation of the liquid outlet part core 42 relative to the mounting module 5 can be effectively prevented, thereby realizing positioning and connecting of the liquid outlet part core 42 and the mounting module 5.

[0035] Further, the row position mounting part 51 comprises a bolt hole, the bolt hole is provided with a locking bolt 53, and the row position connecting part 31 comprises a locking hole 312 matched with the locking bolt 53. The mounting module 5 and the row position module 3 are locked and connected through the locking bolt 53, the structure is simple, the locking structure is stable, and installation is convenient and fast.

[0036] Further, the bolt holes are provided with two, two said bolt holes are provided on both sides of the plug hole 521, two said bolt holes and the bolt hole 522 communication, and the distance between the two bolt holes is greater than or equal to the length of the positioning pin 422. When installing, first put the liquid outlet connecting part 421 into the plug hole 521, and make the positioning hole 4211 on the liquid outlet connecting part 421 correspond to the bolt hole 522 on the liquid outlet mounting part 52, then put the positioning pin 422 into the positioning hole 4211 from the bolt hole 522, then put two locking bolts 53 into the bolt holes on both sides of the plug hole 521, and lock the mounting module 5 and the line position module 3 by cooperating the locking bolt 53 with the bolt hole and the locking hole 312, while the locking bolts 53 on both sides limit the positioning pin 422, which can effectively prevent the positioning pin 422 from separating from the positioning hole 4211 and the bolt hole 522, and the structure is ingenious, convenient and fast to install.

[0037] Further, the line position connecting part 31 includes a mounting groove 311 for embedding the mounting module 5, and the locking hole 312 communicates with the mounting groove 311. The mounting module 5 is embedded and installed with the line position module 3, the structure is compact, and the space utilization rate is high.

[0038] Further, the mounting groove 311 is rectangular and has R chamfers at four corners, and the mounting module 5 is rectangular and has C chamfers. There is a cooperation gap between the R chamfer and the C chamfer, so as to take out the mounting module 5.

[0039] Further, the pressing part core 41 includes an inner layer core 411 and an outer layer core 412 arranged around the outer periphery of the inner layer core 411, the outer layer core 412 is provided with a core passing groove 4121 for the liquid outlet part core 42 to pass through, and the end of the liquid outlet part core 42 away from the liquid outlet connecting part 421 is provided with an arc surface 423 abutting with the side wall of the inner layer core 411. In this embodiment, the inner layer core 411, the outer layer core 412 and the liquid outlet part core 42 cooperate with each other to correspond to the double-layer curved nozzle as shown in Figure 7 .

[0040] Further, the lower die core 2 is provided with an injection flow channel 23, and the injection flow channel 23 communicates with the lower die groove 21. When injection molding, the injection slurry flows into the lower die groove 21 after being guided by the injection flow channel 23 from the injection head. Specifically, the injection flow channel 23 communicates with the lower part of the lower die groove 21, and the cross-sectional area of the injection flow channel 23 gradually decreases from top to bottom to form a funnel shape and communicate with the lower part of the lower die groove 21.

[0041] Further, the curved nozzle injection mold of the embodiment further comprises an inclined guide pillar 6 connected with the row position module 3. After the injection is completed, the upper mold core 1 is moved upward, and the inclined guide pillar 6 is moved upward, so as to drive the row position module 3 to move away from the lower mold core 2, and the liquid outlet part core 42 is separated from the injection molded double-layer curved nozzle, and the demolding of the liquid outlet part core 42 is completed.

[0042] Further, the first ring groove 211 is arranged between the lower mold groove 21 and the outer layer core 412, the second ring groove 212 is arranged between the outer layer core 412 and the inner layer core 411, and the ejection pipe 22 is arranged in the second ring groove 212. After the demolding of the liquid outlet part core 42 is completed, the lower mold core 2 is moved upward, so as to drive the injection molded double-layer curved nozzle to move upward and separate from the first ring groove 211, then the ejection pipe 22 is moved upward, so as to drive the injection molded double-layer curved nozzle to further move upward and separate from the second ring groove 212, at this time, the pressing part core 41 can be integrally ejected and separated from the lower mold core 2, and the demolding of the pressing part core 41 is completed.

[0043] It should be understood that the terms "first", "second" and the like in the present application are used to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information can also be referred to as "second" information without departing from the scope of the present application, and similarly, the "second" information can also be referred to as "first" information. In addition, the orientations or position relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or position relationships shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0044] The above is the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, without departing from the principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present application.

Claims

1. A curved-beak injection mold characterized by comprising: The utility model relates to a kind of injection mould, including: Upper die (1), which is provided with upper die groove (11) on it; Lower die (2), which is provided with lower die groove (21) on it, and the lower die groove (21) cooperates with the upper die groove (11) to form a curved nozzle cavity; Row position module (3), which is provided with row position connecting part (31) on it; Curved nozzle core (4), which includes pressing part core (41) connected with the lower die (2) and liquid outlet part core (42) connected with the row position module (3), and the liquid outlet part core (42) is provided with liquid outlet connecting part (421) on it; Mounting module (5), which is provided with row position mounting part (51) and liquid outlet mounting part (52) on it, and the row position mounting part (51) is connected with the row position connecting part (31), and the liquid outlet mounting part (52) is connected with the liquid outlet connecting part (421).

2. A nozzle-tip injection mold according to claim 1, wherein The liquid outlet connecting part (421) is provided with positioning hole (4211), the axial direction of the positioning hole (4211) is perpendicular to the axial direction of the liquid outlet connecting part (421), the positioning hole (4211) is provided with positioning pin (422), and the liquid outlet mounting part (52) includes plug-in hole (521) matched with the liquid outlet connecting part (421) and plug-in hole (522) matched with the positioning pin (422).

3. A nozzle-tip injection mold according to claim 2, wherein The row position mounting part (51) includes bolt hole, the bolt hole is provided with locking bolt (53) inside, the row position connecting part (31) includes locking hole (312) matched with the locking bolt (53).

4. A nozzle-tip injection mold according to claim 3, wherein The bolt hole is provided with two, and the two bolt holes are parallelly arranged on the two sides of the plug-in hole (521), the two bolt holes are communicated with the plug-in hole (522), and the distance between the two bolt holes is greater than or equal to the length of the positioning pin (422).

5. A nozzle-tip injection mold according to claim 3, wherein The row position connecting part (31) includes mounting groove (311) for embedding cooperation of the mounting module (5), and the locking hole (312) is communicated with the mounting groove (311).

6. A nozzle-tip injection mold according to claim 5, wherein The mounting groove (311) is rectangular and provided with R chamfer at four corners, and the mounting module (5) is rectangular and provided with C chamfer.

7. A nozzle-tip injection mold according to claim 1, wherein The pressing part core (41) includes inner layer core (411) and outer layer core (412) arranged around the outer periphery of the inner layer core (411), the outer layer core (412) is provided with through-core groove (4121) for the liquid outlet part core (42) to pass through, and the liquid outlet part core (42) is provided with arc surface (423) matched with the side wall of the inner layer core (411) at the end away from the liquid outlet connecting part (421).

8. A nozzle-tip injection mold according to claim 7, wherein The first ring groove (211) is arranged between the lower die groove (21) and the outer layer core (412), and the second ring groove (212) is arranged between the outer layer core (412) and the inner layer core (411), and the second ring groove (212) is provided with ejection tube (22) inside.

9. A nozzle-tip injection mold according to claim 1, wherein The lower die (2) is provided with injection flow channel (23), and the injection flow channel (23) is communicated with the lower die groove (21).

10. A nozzle-tip injection mold according to claim 1, wherein Further include inclined guide pillar (6), and the inclined guide pillar (6) is connected with the row position module (3).