Injection mold structure with built-in integrated cooling water path structure

Abstract

The utility model relates to injection mold technical field especially is injection mold structure with built -in integrated cooling water path structure, including upper die and lower die, and the cooling water path is set up in the inside of upper die and lower die, be provided with locking mechanism on the lower die and be used for locking the injection head of the injection port of insertion, and locking mechanism includes: main part assembly, including the ring shell seat fixed on the injection port on the lower die top, the ring plate is rotatably installed in the ring shell seat inside, the extension is fixed to ring plate outer wall one end, the ring plate inside is opened the several arc chute of circumferential arrangement, the slider is slidably installed in the arc chute inside, the slide is rotatably installed to slider upper end, the ring cover is fixed to ring shell seat top, the straight type slot is opened to ring cover bottom, and the slide is located in the straight type slot inside slidably installed, through power component control main part assembly drive execution component synchronous to center radial movement from lateral compression injection head, prevent the injection head from loosening or separating because of high pressure in the injection process.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold structure with a built-in integrated cooling water channel. Background Technology

[0002] In modern plastics manufacturing, injection molding is a widely used and highly efficient manufacturing process; the core equipment of this process is the injection mold, which directly determines the shape, precision and production efficiency of the product.

[0003] According to CN221339338U, a multi-cavity injection mold with a cooling water channel structure is disclosed. This technology discloses a technical solution including: "a front mold plate and a rear mold plate. Multiple front mold cores are arranged at the bottom of the front mold plate, and multiple rear mold cores are arranged at the top of the rear mold plate. The multiple front mold cores and multiple rear mold cores are matched one-to-one to form multiple mold cavities. The front mold plate is provided with a glue inlet channel, and the multiple mold cavities are all connected to the glue inlet channel. Cooling water channels are provided around the corresponding mold cavities between the front mold plate and each front mold core. The front mold plate has one water inlet channel and multiple water outlet channels. The water inlet channel is distributed along the arrangement direction of the multiple front mold cores, and the multiple water outlet channels are all perpendicular to the water inlet channel. The water inlets of the multiple cooling water channels are all connected to the water inlet channel, and the water outlets of the multiple cooling water channels are respectively connected to the multiple water outlet channels one-to-one." This technology has the technical effects of "simple cooling water channel structure, better cooling effect on the product, short cooling time, and guaranteed product quality."

[0004] In existing injection mold applications, the injection head is susceptible to reaction forces during continuous high-pressure melt injection due to the lack of effective locking, which causes it to gradually loosen axially or even separate from the injection port of the mold, leading to problems such as melt leakage, injection pressure fluctuations, and unstable product molding quality. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an injection mold structure with a built-in integrated cooling water channel. The main component is controlled by a power component to drive the execution component to move radially towards the center in sync, thereby pressing the injection head from the side and preventing the injection head from loosening or detaching due to high pressure during the injection process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an injection mold structure with a built-in integrated cooling water channel, comprising an upper mold and a lower mold, both of which have cooling water channels inside. The lower mold is equipped with a locking mechanism for locking the injection head inserted into the injection port. The locking mechanism includes:

[0007] The main component includes an annular housing fixed to the top injection port of the lower mold, an annular plate rotatably mounted inside the annular housing, an extension fixed to one end of the outer wall of the annular plate, several circumferentially arranged arc-shaped grooves inside the annular plate, a slider slidably mounted inside the arc-shaped grooves, a slide bar rotatably mounted on the upper end of the slider, an annular cover fixed to the top of the annular housing, a straight groove opened at the bottom of the annular cover, and the slide bar slidably mounted inside the straight groove;

[0008] An execution component, mounted on the main component and used to contact the injection head;

[0009] The power unit is mounted on the lower mold and is used to drive the main body assembly.

[0010] Preferably, the power assembly includes a mounting bracket fixed to the top of the lower mold, a cylinder pivotally connected to the mounting bracket, and the output end of the cylinder pivotally connected to the extension.

[0011] Preferably, the actuating component includes a connecting part fixed to the top of the inner end of the slide bar, and a lock head is fixed to the inner end of the connecting part.

[0012] Preferably, the main component further includes a plurality of straight slots arranged circumferentially inside the ring cover, and the connecting part is slidably installed inside the straight slots.

[0013] Preferably, the main body component further includes a slotted hole at one end of the ring housing, and the extension is located inside the slotted hole.

[0014] Preferably, the main component further includes a plurality of pads arranged circumferentially at the bottom of the ring housing, and the ring housing is fixed to the top of the lower mold by means of the pads.

[0015] Beneficial effects

[0016] This utility model provides an injection mold structure with a built-in integrated cooling water channel. Compared with the prior art, it has the following advantages:

[0017] 1. After the injection head is inserted into the injection port of the lower mold, the extension is driven by the actuator to move, thereby causing the ring plate to rotate within the ring housing. The rotation of the ring plate causes the arc-shaped groove inside to guide the slider. Since the upper end of the slider is constrained in the straight groove of the ring cover, and the straight groove is arranged radially, this constraint transforms the circumferential rotation of the ring plate into the radial linear motion of the slider driven by the slider through the cooperation of the arc-shaped groove and the slider. This causes the actuator connected to the inner end of the slider to move radially towards the center in sync, pressing the injection head from the side and locking it. This prevents the injection head from loosening or detaching due to melt pressure during the injection process.

[0018] 2. The pad forms a support point with sufficient rigidity between the ring shell seat and the lower mold, ensuring that the entire main component remains stable when subjected to locking reaction force during injection molding, and avoiding the impact of vibration or stress deformation on locking accuracy; the straight groove provides precise radial movement guidance for the connecting part and its carrying lock head, ensuring the linearity and stability of the actuator's radial movement, and effectively preventing the connecting part from deflecting or jamming during movement. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the locking mechanism in this utility model;

[0021] Figure 3 This is a schematic diagram showing the disassembled structure of the locking mechanism in this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the execution component in this utility model.

[0023] In the diagram: 1. Upper mold; 2. Lower mold; 3. Cooling water channel; 4. Locking mechanism; 41. Main component; 411. Ring housing; 412. Ring plate; 413. Extension; 414. Arc-shaped inclined groove; 415. Slider; 416. Sliding bar; 417. Ring cover; 418. Straight groove; 419. Straight groove hole; 4110. Slotted hole; 4111. Pad; 42. Actuating component; 421. Connecting part; 422. Lock head; 43. Power component; 431. Mounting bracket; 432. Cylinder. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 4 This utility model provides a technical solution: an injection mold structure with a built-in integrated cooling water channel, including an upper mold 1 and a lower mold 2. Both the upper mold 1 and the lower mold 2 are equipped with cooling water channels 3. The lower mold 2 is equipped with a locking mechanism 4 for locking the injection head inserted into the injection port. The locking mechanism 4 includes:

[0026] The main component 41 includes an annular housing 411 fixed on the top injection port of the lower mold 2. An annular plate 412 is rotatably installed inside the annular housing 411. An extension 413 is fixed to one end of the outer wall of the annular plate 412. Several circumferentially arranged arc-shaped grooves 414 are opened inside the annular plate 412. A slider 415 is slidably installed inside the arc-shaped grooves 414. A slide bar 416 is rotatably installed on the upper end of the slider 415. An annular cover 417 is fixed to the top of the annular housing 411. A straight groove 418 is opened at the bottom of the annular cover 417, and the slide bar 416 is slidably installed inside the straight groove 418.

[0027] Actuation component 42 is disposed on the main body component 41 and is used to contact the injection head;

[0028] The power assembly 43 is mounted on the lower mold 2 and is used to drive the main body assembly 41.

[0029] In this embodiment, after the injection head is inserted into the injection port of the lower mold 2, the extension 413 is driven to move by the actuator 42, thereby causing the ring plate 412 to rotate within the ring housing 411. The rotation of the ring plate 412 causes the arc-shaped groove 414 inside it to guide the slider. Since the upper end of the slide bar 416 is constrained in the straight groove 418 of the ring cover 417, and the straight groove 418 is arranged radially, this constraint transforms the circumferential rotation of the ring plate 412 into the radial linear motion of the slide bar 416 driven by the slider 415 through the cooperation of the arc-shaped groove 414 and the slider 415. This causes the actuator 42, which is connected to the inner end of the slide bar 416, to move radially towards the center in sync, pressing the injection head from the side and locking it. This prevents the injection head from loosening or detaching due to melt pressure during the injection process.

[0030] Specifically, the power assembly 43 includes a mounting bracket 431 fixed to the top of the lower mold 2, a cylinder 432 pivotally connected to the mounting bracket 431, and the output end of the cylinder 432 pivotally connected to the extension 413.

[0031] In this embodiment, the output end of the cylinder 432 is pivotally connected to the extension 413 of the ring plate 412. The linear thrust or pull is converted into a torque acting on the extension 413 through the pivot points at both ends, thereby driving the ring plate 412 to rotate within the ring housing 411.

[0032] Specifically, the execution component 42 includes a connecting part 421 fixed to the top of the inner end of the slide bar 416, and a lock head 422 is fixed to the inner end of the connecting part 421.

[0033] In this embodiment, the connecting part 421, which is fixedly connected to the top of the inner end of the slide bar 416, moves synchronously toward the center of the mold, and drives the locking head 422 fixed at its inner end to directly abut against the injection head located on the injection port, thereby completing the locking action.

[0034] Specifically, the main component 41 also includes a number of straight slot holes 419 arranged circumferentially inside the ring cover 417, and the connecting part 421 is slidably installed inside the straight slot holes 419.

[0035] In this embodiment, the straight slot 419 provides precise radial motion guidance for the connecting part 421 and the lock head 422 it carries, ensuring the linearity and stability of the radial movement of the actuating component 42, and effectively preventing the connecting part 421 from deflecting or getting stuck during movement.

[0036] Specifically, the main body component 41 also includes a slotted hole 4110 opened at one end of the ring housing 411, and the extension 413 is located inside the slotted hole 4110.

[0037] In this embodiment, the slotted hole 4110 provides movement space for the extension 413, enabling it to transmit external driving power to the internal ring plate 412 without structural interference with the ring shell seat 411.

[0038] Specifically, the main body component 41 also includes several pads 4111 fixed to the bottom circumference of the ring housing 411, and the ring housing 411 is fixed to the top of the lower mold 2 by the pads 4111.

[0039] In this embodiment, the pad 4111 forms a support point with sufficient rigidity between the ring shell 411 and the lower mold 2, ensuring that the entire main body component 41 remains stable when subjected to locking reaction force during injection molding, and avoiding the impact of vibration or stress deformation on locking accuracy.

[0040] The working principle and usage process of this utility model are as follows: First, when the injection head is inserted into the injection port of the lower mold 2, the power assembly 43 fixed on the top of the lower mold 2 is activated, and the output end of its cylinder 432 extends or retracts. Since the output end of the cylinder 432 is pivotally connected to the extension 413 of the ring plate 412, the linear thrust or pull force is converted into a torque acting on the extension 413 through the pivot points at both ends. The extension 413 swings inside the slotted hole 4110 opened on the side wall of the ring housing 411, thereby driving the ring plate 412 to rotate within the ring housing 411. The rotation of the ring plate 412 causes the arc-shaped inclined groove 414 arranged on its inner circumference to generate a guiding effect relative to the slider 415. Since the upper end of the slider 416 is constrained in the straight groove 418 opened at the bottom of the ring cover 417, this constraint causes the circumferential rotation of the ring plate 412 to be guided by the arc-shaped inclined groove 414 and the slider 415. In coordination, the slider 415 drives the slide bar 416 in radial linear motion; the connecting part 421, which is fixedly connected to the top of the inner end of the slide bar 416, moves synchronously towards the center of the mold. The connecting part 421 is constrained to slide inside the straight slot hole 419 arranged circumferentially on the ring cover 417. This structure provides precise radial motion guidance for the connecting part 421 and the locking head 422 it carries; finally, the connecting part 421 drives the locking head 422 fixed at its inner end to directly abut or clamp the injection head located on the injection port, pressing the injection head from the side to complete the locking; the entire main body assembly 41 is firmly installed and fixed on the top of the lower mold 2 by a number of pads 4111 arranged circumferentially at its bottom as support and connecting components. These pads 4111 form a support point with sufficient rigidity between the ring shell seat 411 and the lower mold 2, ensuring that the entire mechanism remains stable when subjected to locking reaction force during the injection process.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection mold structure with a built-in integrated cooling water channel, comprising an upper mold (1) and a lower mold (2), wherein both the upper mold (1) and the lower mold (2) are provided with cooling water channels (3), characterized in that: The lower mold (2) is provided with a locking mechanism (4) for locking the injection head inserted into the injection port. The locking mechanism (4) includes: The main component (41) includes an annular housing (411) fixed on the top injection port of the lower mold (2), an annular plate (412) is rotatably installed inside the annular housing (411), an extension (413) is fixed at one end of the outer wall of the annular plate (412), a number of circumferentially arranged arc-shaped grooves (414) are opened inside the annular plate (412), a slider (415) is slidably installed inside the arc-shaped grooves (414), a slide bar (416) is rotatably installed at the upper end of the slider (415), an annular cover (417) is fixed on the top of the annular housing (411), a straight groove (418) is opened at the bottom of the annular cover (417), and the slide bar (416) is slidably installed inside the straight groove (418); An execution component (42) is disposed on the main body component (41) and is used to contact the injection head; A power assembly (43) is mounted on the lower mold (2) and is used to drive the main body assembly (41).

2. The injection mold structure with built-in integrated cooling water channel as described in claim 1, characterized in that: The power assembly (43) includes a mounting bracket (431) fixed to the top of the lower mold (2), a cylinder (432) is pivotally connected to the mounting bracket (431), and the output end of the cylinder (432) is pivotally connected to the extension (413).

3. The injection mold structure with built-in integrated cooling water channel as described in claim 1, characterized in that: The execution component (42) includes a connecting part (421) fixed to the top of the inner end of the slide bar (416), and a lock head (422) is fixed to the inner end of the connecting part (421).

4. The injection mold structure with built-in integrated cooling water channel as described in claim 3, characterized in that: The main component (41) also includes a number of straight slots (419) arranged circumferentially inside the ring cover (417), and the connecting part (421) is slidably installed inside the straight slots (419).

5. The injection mold structure with built-in integrated cooling water channel as described in claim 1, characterized in that: The main body component (41) also includes a slotted hole (4110) opened at one end of the ring housing (411), and the extension (413) is located inside the slotted hole (4110).

6. The injection mold structure with built-in integrated cooling water channel as described in claim 1, characterized in that: The main component (41) also includes several pads (4111) arranged circumferentially at the bottom of the ring shell (411), and the ring shell (411) is fixed to the top of the lower mold (2) through the pads (4111).

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