Mosquito repelling net mold

Abstract

The invention belongs to the technical field of molds, and particularly relates to a mosquito repelling net mold. Comprising a front mold core, a rear mold core in press fit with the front mold core, a rear mold insert and a rear mold ejector pin, the rear mold insert and the rear mold ejector pin are in vertical sliding connection relative to the rear mold core, and the rear mold insert is matched with the front mold core and the rear mold core to form a pouring cavity used for forming a mosquito net finished product. The rear mold core slides upwards relative to the rear mold insert so that the middle area of the mosquito net finished product can be separated from the rear mold insert, and the rear mold ejector pin moves upwards relative to the rear mold core so that the peripheral area of the mosquito net finished product can be separated from the rear mold core. Two-stage demolding design is combined, firstly, the rear mold insert slides upwards to enable the middle area of a mosquito net finished product to be demolded to release stress, then the rear mold ejector pin ejects upwards to enable the peripheral area to be separated from the rear mold core, the step-by-step, stable and uniform-stress demolding process of the product is achieved, and the demolding smoothness, integrity and yield of the product are remarkably improved.

Description

Technical field

[0001] This application is achieved through the following technical solutions: A mosquito repellent net mold comprises a front mold core, a rear mold core pressed together with the front mold core, and a rear mold insert and a rear mold ejector that are slidably connected to the rear mold core up and down. The rear mold insert cooperates with the front mold core and the rear mold core, respectively, to form a casting cavity for molding a finished mosquito net. The rear mold core slides upward relative to the rear mold insert to separate the middle area of ​​the finished mosquito net from the rear mold insert. The rear mold ejector moves upward relative to the rear mold core to separate the surrounding area of ​​the finished mosquito net from the rear mold core.

[0002] As described above, a mosquito repellent net mold is provided with a front mold insert on the front mold core, and a molding groove and a sliding groove located in the molding groove and for the sliding setting of the rear mold insert on the rear mold core. The front mold insert cooperates with the rear mold insert to form a casting cavity in the molding groove.

[0003] In the mosquito repellent net mold as described above, front mold recesses corresponding to the rear mold inserts are formed between adjacent front mold inserts, and rear mold recesses corresponding to the front mold inserts are formed between adjacent rear mold inserts and between adjacent sliding notches.

[0004] In the mosquito repellent net mold as described above, a rear mold insert fixing seat for supporting the rear mold insert is further provided below the rear mold core, and the rear mold insert fixing seat moves up and down relative to the rear mold core.

[0005] In the mosquito repellent net mold as described above, the rear mold ejector pins are arranged around the sliding notch and corresponding to the edge of the forming groove.

[0006] In the mosquito repellent net mold as described above, the front mold core is provided with a water outlet communicating with the pouring cavity.

[0007] The mosquito repellent net mold as described above also includes a front mold sliding insert that abuts against the finished mosquito net product, the front mold core is provided with a mounting groove for the front mold sliding insert to slide up and down, a front template is provided above the front mold core, and an elastic member provided between the front mold core and the front template drives the front mold sliding insert to push the finished mosquito net product toward the rear mold core.

[0008] In the mosquito repellent net mold as described above, a limiting platform is provided in the installation groove to limit the front mold sliding insert from leaving the installation groove downward, and an opening is provided on the front mold sliding insert for the pin rod to pass through and cooperate with the limiting platform.

[0009] The mosquito repellent net mold as described above further comprises a rear mold plate connected to the rear mold core. When the rear mold plate is opened relative to the front mold plate, the front mold sliding insert pushes the finished mosquito net toward the rear mold core.

[0010] The mosquito repellent net mold as described above also includes an ejector plate connected to the rear mold ejector. The rear mold core and the ejector plate move upward relative to the rear mold insert, so that the middle area of ​​the finished mosquito net is separated from the rear mold insert and the surrounding areas of the finished mosquito net are separated from the rear mold core respectively.

[0011] Compared with the prior art, this application has the following advantages: A mosquito repellent net mold of the present application forms the core part of the casting cavity by replacing the traditional middle ejector with a rear mold insert that can slide upward relative to the rear mold core, avoiding the risk of deformation or fracture of the middle area due to concentrated ejection force, and is more conducive to the optimized arrangement of water transportation in the mold; further combined with the two-stage demolding design, the rear mold insert first slides up to demold the middle area of ​​the mosquito net finished product to release stress, and then the rear mold ejector pushes up to separate the surrounding area from the rear mold core, realizing a step-by-step, smooth and uniformly stressed demolding process of the product, and significantly improving the product demolding smoothness, integrity and yield rate.

Brief Description of the Drawings

[0012] Figure 1 It is a three-dimensional stereogram in the embodiment of the present application; Figure 2 yes Figure 1 Exploded view of; Figure 3 This is a three-dimensional diagram of the front mold core and the rear mold core in the embodiment of the present application; Figure 4yes Figure 3 Exploded view of; Figure 5 yes Figure 3 Schematic diagram of the internal cross section at AA in the mold closing state; Figure 6 yes Figure 3 Schematic diagram of the internal cross section at AA in the open state; Figure 7 yes Figure 3 Schematic diagram of the internal cross section at AA in the demoulding state; Figure 8 This is a three-dimensional stereogram of the rear mold core in the embodiment of the present application; Figure 9 It is a three-dimensional representation of the front mold core in the embodiment of the present application. Figure 1 ; Figure 10 It is a three-dimensional representation of the front mold core in the embodiment of the present application. Figure 2 ; Figure 11 is a three-dimensional perspective view of the rear mold insert in an embodiment of the present application; Figure 12 This is a schematic diagram of the interior side of the mold of this application; Figure 13 It is a schematic diagram of the interior of the front of the mold of this application. [Specific implementation method] In order to make the technical problems, technical solutions and beneficial effects solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0013] See also Figures 1 to 13 A mosquito repellent net mold comprises a front mold core 1, a rear mold core 2 pressed with the front mold core 1, and a rear mold insert 3 and a rear mold ejector pin 4 which are connected to the rear mold core 2 for sliding up and down. The rear mold insert 3 cooperates with the front mold core 1 and the rear mold core 2 to form a casting cavity for molding a mosquito net finished product 5. The rear mold core 2 slides upward relative to the rear mold insert 3 to separate the middle area of ​​the mosquito net finished product 5 from the rear mold insert 3, and the rear mold ejector pin 4 moves upward relative to the rear mold core 2 to separate the surrounding area of ​​the mosquito net finished product 5 from the rear mold core 2.

[0014] A mosquito repellent net mold of the present application forms the core part of the casting cavity by replacing the traditional middle ejector with a rear mold insert that can slide upward relative to the rear mold core, avoiding the risk of deformation or fracture of the middle area due to concentrated ejection force, and is more conducive to the optimized arrangement of water transportation in the mold; further combined with the two-stage demolding design, the rear mold insert first slides up to demold the middle area of ​​the mosquito net finished product to release stress, and then the rear mold ejector pushes up to separate the surrounding area from the rear mold core, realizing a step-by-step, smooth and uniformly stressed demolding process of the product, and significantly improving the product demolding smoothness, integrity and yield rate.

[0015] Furthermore, as a preferred embodiment of the present invention but not a limitation, the front mold core 1 is provided with a front mold insert 11, the rear mold core 2 is provided with a molding groove 21 and a sliding groove 22 located in the molding groove 21 and for the rear mold insert 3 to slide, and the front mold insert 11 cooperates with the rear mold insert 3 to form a casting cavity in the molding groove 21.

[0016] In this embodiment, a pouring cavity 6 is formed by cooperating with a front mold insert 11 provided in the front mold core 1 and a rear mold insert 3 slidingly provided in a molding groove 21 of the rear mold core 2, so that the mold structure is more compact and reasonable. The sliding of the rear mold insert 3 in the sliding groove 22 realizes the smooth demolding of the product after molding, and solves the problem of easy deformation and fracture of products in traditional molds. When the mold is opened, the rear mold insert 3 can slide relative to the rear mold core 2, so that the middle area of ​​the mosquito net finished product 5 is detached first, avoiding deformation caused by concentrated stress. At the same time, the precise cooperation between the front mold insert 11 and the rear mold insert 3 ensures the molding accuracy of the pouring cavity 6.

[0017] Furthermore, as a preferred embodiment of the present invention but not a limitation, a front mold recess 12 corresponding to the rear mold insert 3 is formed between adjacent front mold inserts 11, and a rear mold recess 23 corresponding to the front mold insert 11 is formed between adjacent rear mold inserts 3 and between adjacent sliding grooves 22.

[0018] In this embodiment, a front mold recess 12 is provided between the front mold inserts 11 to cooperate with the rear mold insert 3, and a rear mold recess 23 is provided between the rear mold inserts 3 and between the sliding grooves 22 to cooperate with the front mold insert 11, thereby forming a mutually interlocking concave-convex structure, thereby improving the molding accuracy and product dimensional stability. The concave-convex matching structure optimizes the molten material flow path to make the mold filling more uniform, and significantly improves the surface quality of the product. The front mold inserts 11 and the rear mold inserts 3 adopt an interlaced honeycomb structure, which can further enhance the heat dissipation performance of the mold, make the product cooling more uniform, and improve the consistency of mesh forming, which is particularly suitable for the production of ultra-thin mosquito net products. At the same time, this structural design makes it difficult for the mold to accumulate residual materials during long-term use, thereby reducing the maintenance frequency. In addition, the rear mold insert 3 is designed as a modular structure that can be quickly replaced, and the mesh density and distribution can be flexibly adjusted according to different product requirements, thereby greatly improving the versatility and production efficiency of the mold.

[0019] Furthermore, as a preferred embodiment of the present invention but not a limitation, a rear mold insert fixing seat 7 for supporting the rear mold insert 3 is provided below the rear mold core 2 , and the rear mold insert fixing seat 7 moves up and down relative to the rear mold core 2 .

[0020] In this embodiment, the rear mold insert holder 7 provides stable support for the rear mold insert 3, ensuring that it maintains a precise position and posture during mold operation, thereby improving molding accuracy and product quality. Secondly, the mobility of the rear mold insert holder 7 allows the rear mold insert 3 to flexibly adjust its position during demolding, helping the mosquito net finished product 5 to smoothly separate from the mold and reducing the risk of product deformation and damage. During injection molding, the rear mold insert holder 7 provides stable support to ensure molding accuracy. During demolding, by controlling the movement of the rear mold insert holder 7, the product can be demolded in stages and in an orderly manner, avoiding deformation or breakage of the product due to the sudden release of internal stress.

[0021] Furthermore, as a preferred embodiment of this solution but not a limitation, the rear mold ejector pins 4 are arranged around the sliding notch 22 and corresponding to the edge of the forming groove 21 .

[0022] In this embodiment, by arranging the rear mold ejector pins 4 around the sliding notch 22 and corresponding to the edge of the forming groove 21, the points of application of the ejection force are distributed around the product, which not only ensures that the product can be ejected stably, but also avoids the problem that the traditional middle ejector method easily causes deformation or breakage of the thin-walled mesh structure. When the rear mold insert 3 completes the demoulding of the middle area, the rear mold ejector pins 4 evenly arranged around the four sides act synchronously to act on the four sides of the product with a balanced ejection force, thereby achieving smooth separation of the product from the rear mold core 2. The force of the whole process is uniform and controllable.

[0023] Furthermore, as a preferred embodiment of the present invention but not a limitation thereof, a nozzle 8 communicating with the pouring cavity is provided on the front mold core 1 .

[0024] In this embodiment, after the mold is closed, the injection molding machine injects the molten material into the pouring cavity through the nozzle 8. The material cools and solidifies within the pouring cavity, forming the finished mosquito net 5. During this process, a cooling medium enters the mold through the nozzle 8, cooling the pouring cavity and the surrounding mold structure, ensuring rapid and uniform cooling and solidification of the product. This design not only improves product molding quality but also extends the service life of the mold.

[0025] Furthermore, as a preferred embodiment of this solution but not a limitation, it also includes a front mold sliding insert 9 that abuts against the mosquito net finished product 5, and the front mold core 1 is provided with a mounting groove 13 for the front mold sliding insert 9 to slide up and down, and a front template 10 is provided above the front mold core 1, and an elastic member provided between the front mold core 1 and the front template 10 drives the front mold sliding insert 9 to push the mosquito net finished product 5 toward the rear mold core 2.

[0026] In this embodiment, the active pushing action of the front mold sliding insert 9 effectively prevents the finished mosquito net 5 from adhering to the front mold core 1 during mold opening, significantly improving the smoothness and efficiency of demolding. Furthermore, the provision of the elastic member ensures that the front mold sliding insert 9 can quickly and smoothly push the product at the moment of mold opening, reducing the risk of product deformation or damage due to external impact.

[0027] Furthermore, as a preferred embodiment of the present invention but not a limitation, a limiting platform 14 is provided in the installation groove 13 to limit the front mold sliding insert 9 from moving downward from the installation groove 13, and an opening 91 is provided on the front mold sliding insert 9 for a pin rod to pass through to cooperate with the limiting platform 14.

[0028] In this embodiment, it is ensured that the front mold sliding insert 9 can accurately perform the pushing action when the mold is opened, and the insert is prevented from excessive displacement or falling off under the action of the elastic member. At the same time, the matching mode of the pin rod and the opening 91 provides a convenient positioning reference for the mold assembly, which greatly improves the maintenance efficiency; when the mold is opened, the guiding effect of the pin rod in the opening 91 ensures that the insert moves in a straight line. When the pushing action is completed, the limit platform 14 prevents the insert from overtravel through the mechanical blocking effect of the pin rod, and the entire movement process is precisely controllable.

[0029] Furthermore, as a preferred embodiment of this solution but not a limitation, it also includes a rear template 24 connected to the rear mold core 2. When the rear template 24 is opened relative to the front template 10, the front mold sliding insert 9 pushes the mosquito net finished product 5 toward the rear mold core 2.

[0030] In this embodiment, the pushing action of the front mold sliding insert 9 is ensured to be perfectly synchronized with the mold opening stroke of the template during the mold separation process, which not only ensures that the mosquito net finished product 5 can be reliably separated from the front mold but also does not cause product deformation or damage due to premature or late pushing action; its working principle is that when the mold is opened, the rear template 24 drives the rear mold core 2 to separate from the front template 10. At this time, the elastic part installed between the front template 10 and the front mold core 1 drives the front mold sliding insert 9 to push the mosquito net finished product 5 to the rear mold core 2 with a constant pressure.

[0031] Furthermore, as a preferred embodiment of this solution but not a limitation, it also includes a pin plate 41 connected to the rear mold pin 4, and the rear mold core 2 and the pin plate 41 move upward relative to the rear mold insert 3, so that the middle area of ​​the mosquito net finished product 5 is separated from the rear mold insert 3 and the surrounding areas of the mosquito net finished product 5 are separated from the rear mold core 2 respectively.

[0032] In this embodiment, a staged and progressive demolding of the mosquito net finished product 5 is achieved. First, the rear mold core 2 moves upward to separate the middle area of ​​the product from the rear mold insert 3 to release internal stress, and then the ejector plate 41 drives the rear mold ejector 4 to eject the surrounding area of ​​the product. This two-stage demolding method completely solves the quality problems of thin-walled mesh products such as deformation and breakage caused by traditional one-time ejection. Its working principle is that in the first stage of demolding, the rear mold core 2 moves upward relative to the stationary rear mold insert 3, and the relative movement of the mold structure itself is used to smoothly demold the middle mesh area of ​​the product. At this time, the shape of the product is still fixed by the rear mold core 2 on all sides. In the second stage, the ejector plate 41 moves to drive the rear mold ejector 4 to eject the surrounding area of ​​the product. The entire demolding process adopts the method of "loosening the center first and demolding the surrounding areas later", so that the product is always in a controlled state.

[0033] The working principle of this embodiment is as follows: A mosquito repellent net mold of the present application forms the core part of the casting cavity by replacing the traditional middle ejector with a rear mold insert that can slide upward relative to the rear mold core, avoiding the risk of deformation or fracture of the middle area due to concentrated ejection force, and is more conducive to the optimized arrangement of water transportation in the mold; further combined with the two-stage demolding design, the rear mold insert first slides up to demold the middle area of ​​the mosquito net finished product to release stress, and then the rear mold ejector pushes up to separate the surrounding area from the rear mold core, realizing a step-by-step, smooth and uniformly stressed demolding process of the product, and significantly improving the product demolding smoothness, integrity and yield rate.

[0034] The above are implementation methods provided in conjunction with specific content, and the specific implementation of this application is not limited to these descriptions. Any method structure that is similar to the method structure of this application, or any technical deduction or replacement based on the concept of this application, should be considered as the scope of protection of this application.

Claims

1. A mosquito repellent net mold, characterized in that: The invention comprises a front mold core (1), a rear mold core (2) pressed with the front mold core (1), and a rear mold insert (3) and a rear mold ejector pin (4) connected to the rear mold core (2) by sliding up and down. The rear mold insert (3) cooperates with the front mold core (1) and the rear mold core (2) to form a casting cavity for forming a mosquito net finished product (5). The rear mold core (2) slides upward relative to the rear mold insert (3) so that the middle area of ​​the mosquito net finished product (5) is separated from the rear mold insert (3). The rear mold ejector pin (4) moves upward relative to the rear mold core (2) so that the surrounding area of ​​the mosquito net finished product (5) is separated from the rear mold core (2).

2. A mosquito repellent net mold according to claim 1, characterized in that: The front mold core (1) is provided with a front mold insert (11), the rear mold core (2) is provided with a molding groove (21) and a sliding groove (22) located in the molding groove (21) and for the rear mold insert (3) to be slidably arranged, and the front mold insert (11) and the rear mold insert (3) cooperate to form a casting cavity in the molding groove (21).

3. A mosquito repellent net mold according to claim 2, characterized in that: A front mold recess (12) corresponding to the rear mold insert (3) is formed between adjacent front mold inserts (11), and a rear mold recess (23) corresponding to the front mold insert (11) is formed between adjacent rear mold inserts (3) and between adjacent sliding notches (22).

4. The mosquito repellent net mold according to claim 1, characterized in that: A rear mold insert fixing seat (7) for supporting the rear mold insert (3) is also provided below the rear mold core (2), and the rear mold insert fixing seat (7) moves up and down relative to the rear mold core (2).

5. The mosquito repellent net mold according to claim 3, characterized in that: The rear mold ejector pin (4) is arranged around the sliding notch (22) and corresponding to the edge of the molding groove (21).

6. The mosquito repellent net mold according to claim 1, characterized in that: The front mold core (1) is provided with a water outlet (8) communicating with the pouring cavity.

7. The mosquito repellent net mold according to claim 1, characterized in that: The invention also includes a front mold sliding insert (9) that abuts against the mosquito net finished product (5), a mounting groove (13) is provided on the front mold core (1) for the front mold sliding insert (9) to slide up and down, a front template (10) is provided above the front mold core (1), and an elastic member provided between the front mold core (1) and the front template (10) drives the front mold sliding insert (9) to push the mosquito net finished product (5) toward the rear mold core (2).

8. The mosquito repellent net mold according to claim 7, characterized in that: A limiting platform (14) is provided in the installation groove (13) to limit the front mold sliding insert (9) from disengaging downward from the installation groove (13), and an opening (91) is provided on the front mold sliding insert (9) for a pin rod to pass through to cooperate with the limiting platform (14).

9. The mosquito repellent net mold according to claim 7, characterized in that: It also includes a rear mold plate (24) connected to the rear mold core (2), and when the rear mold plate (24) is opened relative to the front mold plate (10), the front mold sliding insert (9) pushes the mosquito net finished product (5) toward the rear mold core (2).

10. The mosquito repellent net mold according to claim 9, characterized in that: It also includes an ejector plate (41) connected to the rear mold ejector (4), and the rear mold core (2) and the ejector plate (41) move upward relative to the rear mold insert (3), so as to respectively separate the middle area of ​​the mosquito net finished product (5) from the rear mold insert (3) and the surrounding area of ​​the mosquito net finished product (5) from the rear mold core (2).

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