Injection mold

Abstract

The utility model discloses an injection mold and relates to the technical field of injection molding. The injection mold comprises a female mold and a male mold, wherein the female mold comprises a female mold core; the male mold comprises a male mold core and an ejector pin mechanism, a mold cavity used for containing an injection molding product is formed between the male mold core and the female mold core, the injection molding product is located on the male mold core after injection molding is completed and mold opening is conducted, the ejector pin mechanism comprises a first ejector pin set used for ejecting out the injection molding product, and the first ejector pin set comprises a plurality of first ejector pins; the injection molding product comprises a frame and a framework which is connected with the frame and is of a net-shaped structure. And the first ejector pin penetrates through the core insert and is propped against the first cross position of the framework. The first ejector pin is abutted against the first cross position of the framework, the strength of the first cross position is relatively higher, and the first cross position is uniformly distributed, so that an injection product is uniformly stressed in the ejection process, and the injection product can be reliably ejected.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an injection molding mold. Background Art

[0002] Injection molds are generally composed of a male mold and a female mold. The heated plastic is cooled and formed in the mold cavity of the injection mold. After the mold is opened, the internal structure of the mold cavity has a certain fixing effect on the product, so the product needs to be separated from the mold core with the help of external force. In the prior art, in order to facilitate the removal of the product from the mold, an ejector pin is generally set on the mold, and the product after injection molding is separated from the mold core by ejection of the ejector pin.

[0003] For hollow frame-shaped injection molded products, if the ejector pin position is not set properly, the product is prone to deformation or damage during the ejection process. Fig.12 As shown, the figure shows a cleaning tray, which is used to carry the battery shell for cleaning operations. The cleaning tray is hollow, including an outer frame 302, an inner frame 301 arranged in the outer frame 302, and a skeleton 31 arranged in the inner frame 301. The skeleton 31 is a mesh structure, and a positioning frame 32 is arranged at its intersection. The positioning frame 32 is provided with a positioning column 33 for positioning the battery shell. Of course, the cleaning tray is not limited to being used to carry the battery shell.

[0004] The injection molded product is a hollow structure as a whole, and the structure is very complex. The outer frame 302, the inner frame 301 and the skeleton 31 are all composed of ribs, so the overall strength of the product is relatively low. During the demolding process, the ejector pin has a certain thrust. When the position of the ejector pin is unreasonable or the number of ejector pins is small, the product is prone to uneven force, causing deformation or even damage to the product, thereby affecting the subsequent use of the product.

[0005] Therefore, it is necessary to improve the prior art to overcome the above defects in the prior art. Utility Model Content

[0006] The utility model aims to provide an injection mold, which can reliably eject the injection molded product from the mold core.

[0007] In order to achieve the above-mentioned utility model object, the utility model proposes an injection mold, which includes:

[0008] A mother mold, including a mother mold core;

[0009] A male mold, comprising a male mold core and an ejector mechanism, wherein a mold cavity for accommodating an injection molded product is formed between the male mold core and the female mold core, and after the injection molding is completed and the mold is opened, the injection molded product is located on the male mold core, and the ejector mechanism comprises a first ejector group for ejecting the injection molded product, wherein the first ejector group comprises a plurality of first ejectors;

[0010] The injection molded product includes a frame and a skeleton connected to the frame and having a mesh structure;

[0011] The first ejector pin passes through the male mold core and abuts against a first intersection position of the frame.

[0012] Furthermore, a plurality of connecting handles are provided on the outer side of the frame, the connecting handles include a column portion connected to the frame and a head portion provided at the outer end of the column portion, and the ejector mechanism also includes a second ejector group, the second ejector group includes a plurality of second ejectors for abutting against the head portion.

[0013] Furthermore, the ejector mechanism includes a fixing member and an elastic member for fixing the first ejector group, the male mold core is provided with a through hole, and the first ejector passes through the through hole and abuts against the injection molded product.

[0014] Furthermore, the male mold includes a male mold plate, a male mold base plate, and mold feet arranged between the male mold plate and the male mold base plate, a cavity is formed between the mold feet, and the ejector mechanism is arranged in the cavity and is connected to the push rod of the injection molding machine, and can move in the cavity under the drive of the push rod.

[0015] Further, the frame includes an outer frame and an inner frame, the position where the frame is connected to the inner frame is a second intersection position, and the ejector mechanism further includes a third ejector group, and the third ejector group includes a plurality of third ejectors abutting against the second intersection position;

[0016] The third ejector pins are correspondingly arranged at some or all of the second intersection positions.

[0017] Further, the first intersection position, the second intersection position and the corner of the inner frame are all provided with a positioning frame, and the ejector mechanism includes a fourth ejector group, and the fourth ejector group includes a plurality of fourth ejectors for abutting against the positioning frame;

[0018] Part or all of the positioning frames are correspondingly provided with the fourth ejector pins.

[0019] Further, the positioning frame located at the first intersection position is rectangular, the positioning frame located at the second intersection position is a half-rectangular structure, and the positioning frame located at the corner of the inner frame body is a quarter-rectangular structure;

[0020] Each corner and / or each side of the rectangular structure is correspondingly provided with a fourth ejector pin.

[0021] Furthermore, the frame is rectangular, the skeleton is arranged perpendicularly to the inner frame, the ejector mechanism includes a fifth ejector group, the fifth ejector group includes a plurality of fifth ejectors, the skeleton includes a first rib and a second rib arranged perpendicularly to the first rib, the fifth ejector is abutted on the second rib between two adjacent first ribs and / or the fifth ejector is abutted on the first rib between two adjacent second ribs.

[0022] Further, the contact areas between the first ejector pin and the third ejector pin and the injection molded product are greater than the contact areas between the fourth ejector pin and the fifth ejector pin and the injection molded product.

[0023] Furthermore, the fourth ejector pin includes an ejection portion abutting against the injection molded product and a rod portion connected to the ejection portion, and a cross-sectional area of ​​the ejection portion is smaller than a cross-sectional area of ​​the rod portion.

[0024] Further, at least 70% of the first intersection positions are correspondingly provided with a first ejector pin; or,

[0025] Each of the first intersection positions is correspondingly provided with a first ejector pin.

[0026] Compared with the prior art, the utility model has the following beneficial effects: the injection mold includes a female mold and a male mold, the female mold includes a female mold core; the male mold includes a male mold core and an ejector mechanism, the ejector mechanism includes a first ejector group, and the first ejector group includes a plurality of first ejectors; the injection molded product includes a frame and a skeleton connected to the frame and having a mesh structure; the first ejector passes through the male mold core and abuts against a first intersection position of the skeleton, the strength of the first intersection position is relatively higher, and the distribution position is uniform, so that the injection molded product is subjected to uniform force during the ejection process, which is conducive to the reliable ejection of the injection molded product, thereby reducing the risk of defects in the injection molded product due to bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of an injection mold of an embodiment of the utility model.

[0028] Figure 2 yes Figure 1 The exploded view of the injection mold shown is after removing the gate bushing, master mold base plate and master mold plate.

[0029] Figure 3 yes Figure 1 The injection mold shown is a cross-sectional view after removing the master mold base plate and the master mold plate.

[0030] Figure 4 is a schematic diagram of an injection molded product of an embodiment.

[0031] Figure 5It is a schematic diagram of the first ejector group of the injection mold in an embodiment of the utility model abutting against the injection molded product.

[0032] Figure 6 It is a schematic diagram of the abutment between the second ejector group of the injection mold and the injection molded product in one embodiment of the utility model.

[0033] Figure 7 yes Figure 3 A partial enlarged view of point I in the middle.

[0034] Figure 8 It is a schematic diagram of the abutment between the third ejector pin group of the injection mold and the injection molded product in one embodiment of the utility model.

[0035] Fig. 9 It is a schematic diagram of the abutment between the fourth ejector pin group of the injection mold and the injection molded product in one embodiment of the utility model.

[0036] Fig.10 yes Fig. 9 Schematic diagram of the fourth ejector pin shown in .

[0037] Fig.11 It is a schematic diagram of the fifth ejector group of the injection mold in an embodiment of the utility model abutting against the injection molded product.

[0038] Fig.12 yes Figure 4 A schematic diagram showing another viewing direction of the injection molded product shown. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0040] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0041] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] like Figures 1 to 5 As shown, an injection mold corresponding to a preferred embodiment of the utility model includes a female mold 1 and a male mold 2.

[0043] The mother mold 1 includes a mother mold core 10 . The mother mold 1 is connected to a nozzle of an injection molding machine. A flow channel is provided between the nozzle and the mother mold core 10 . The heated plastic flows to the mother mold core 10 through the flow channel.

[0044] The male mold 2 is used to cooperate with the female mold 1 to complete the injection molding. The female mold 1 and the male mold 2 can move relatively to complete the action of closing and opening the mold. The male mold 2 includes a male mold core 21 and an ejector mechanism 22. A mold cavity 100 for accommodating the injection molded product 3 is formed between the male mold core 21 and the female mold core 10. During injection molding, the molten plastic is filled into the mold cavity 100, and after cooling, the injection molded product 3 corresponding to the shape of the mold cavity 100 is formed. When the injection molding is completed and the mold is opened, the injection molded product 3 is on the male mold core 21. The ejector mechanism 22 includes a first ejector group 220 for ejecting the injection molded product 3. The first ejector group 220 includes a plurality of first ejectors 2200.

[0045] The injection molded product 3 includes a frame 30 and a skeleton 31 connected to the frame 30 and having a mesh structure; the first ejector pin 2200 passes through the male mold core 21 and abuts against a first intersection position 312 of the skeleton 31, and the skeleton 31 includes a plurality of first ribs 310 arranged at intervals and a plurality of second ribs 311 arranged at intervals, the first ribs 310 and the second ribs 311 are arranged to cross each other, and the first intersection position 312 is the intersection position of the first ribs 310 and the second ribs 311.

[0046] The injection mold is installed on the injection molding machine, and the injection molding machine realizes the closing and opening of the injection mold. When the female mold 1 and the male mold 2 are in contact with each other, the heated plastic enters the mold cavity 100 formed by the female mold core 10 and the male mold core 21 through the flow channel, and the plastic is cooled and formed in the mold cavity 100; the male mold 2 is provided with a through hole, and the ejector pin passes through the through hole and contacts the injection molded product 3. After the injection molding is completed, the female mold 1 and the male mold 2 are separated. After the female mold 1 and the male mold 2 are separated by a certain distance, the first ejector pin group 220 moves toward the direction of the injection molded product 3 under the action of the ejector pin of the injection molding machine, so that the injection molded product 3 is separated from the male mold core 21. Since the strength of the cross position of the skeleton 31 is relatively higher and the distribution position is uniform, the injection molded product 3 is ejected by the first ejector pin 2200 contacting the first cross position 312, which is conducive to making the injection molded product more uniformly stressed during the ejection process, thereby reducing the defects or damage of the injection molded product 3 caused by bending.

[0047] Optionally, at least 70% of the first intersection positions 312 are correspondingly provided with a first ejector pin 2200. Further optionally, each of the first intersection positions 312 is correspondingly provided with a first ejector pin 2200, so that the injection molded product 3 is subjected to more uniform force when being ejected.

[0048] like Figure 4 and Figure 6 As shown, a plurality of connecting handles 300 are provided on the outer side of the frame 30, and the connecting handles 300 include a column 3000 connected to the frame 30 and a head 3001 provided at the outer end of the column 3000, and the cross-sectional size of the head 3001 is larger than the cross-sectional size of the column 3000, and the ejector mechanism 22 also includes a second ejector group 224, and the second ejector group 224 includes a plurality of second ejectors 2240 for abutting against the head 3001. Optionally, a second ejector 2240 is correspondingly provided for some of the heads 3001, and further, a second ejector 2240 is correspondingly provided for each head 3001. By providing a second ejector pin 2240 abutting against the connecting handle 300, during the ejection process of the injection molded product 3, the frame 30 can be pushed by the second ejector pin 2240, so that multiple parts of the injection molded product 3 can be pushed by the ejector pin at the same time, thereby improving the uniformity of the force. In the illustrated embodiment, the connecting handles 300 on both sides of the injection molded product 3 are symmetrical to each other, and the frame 30 can be pushed evenly.

[0049] like Figure 4 and Figure 6 As shown, the frame 30 is rectangular, and the connecting handles 300 are evenly arranged on the outside of the frame 30. The frame 30 has two connecting handles 300 on both sides in the length direction X and three connecting handles 300 on both sides in the width direction Y.

[0050] like Figures 1 to 3As shown, the ejector mechanism 22 includes a fixing member 221 and an elastic member 222 for fixing the first ejector group 220. The male mold core 21 is provided with a through hole, and the first ejector 2200 passes through the through hole and abuts against the injection molded product 3. The fixing member 221 can fix a plurality of first ejectors 2200, and the elastic member 222 enables the first ejector 2200 to eject the injection molded product 3 after the mold is opened, and can return to a safe position when the mold is closed.

[0051] like Figures 1 to 3 As shown, the male mold 2 includes a male mold plate 20, a male mold base plate 24, and a mold foot 23 disposed between the male mold plate 20 and the male mold base plate 24. A cavity 230 is formed between the mold feet 23. The ejector mechanism 22 is disposed in the cavity 230 and is connected to the push rod of the injection molding machine. It can move in the cavity 230 under the drive of the push rod. The fixing member 221 includes an ejector plate 2210 for mounting the ejector and a push plate 2211 abutting against the ejector plate 2210. The ejector is fixed under the clamping of the ejector plate 2210 and the push plate 2211; further, as shown in FIG. Figure 3 and Figure 7 As shown, the first ejector pin 2200 includes a protrusion 2263 located at one end, the ejector plate 2210 is provided with a mounting hole 2212, and the mounting hole 2212 is provided with a groove 2213 at one end close to the push plate 2211. The first ejector pin 2200 is inserted into the mounting hole 2212, and the protrusion 2263 is received in the groove 2213 and abuts against the push plate 2211 at the same time, so that the first ejector pin 2200 is fixed under the cooperation of the push plate 2211 and the ejector plate 2210. It can be understood that other ejectors can be fixed in the same way; the elastic member 222 abuts between the ejector plate 2210 and the male mold plate 20, and the push plate 2211 is connected to the push rod of the injection molding machine; when the injection mold is opened, the ejector mechanism 22 moves toward the male mold core 21 under the push of the push rod, and the ejector can eject the injection molded product 3 from the male mold core 21. After the injection molded product 3 is ejected, the push rod retreats, and the ejector mechanism 22 retreats to its original position under the action of the elastic member 222.

[0052] like Figure 8 As shown, the frame 30 includes an outer frame 302 and an inner frame 301 , the position where the skeleton 31 is connected to the inner frame 301 is a second intersection position 313 , and the ejector mechanism 22 also includes a third ejector group 223 , which includes a plurality of third ejectors 2230 abutting against the second intersection position 313 . Figure 4 and Figure 8In the illustrated embodiment, the second intersection positions 313 are evenly arranged along the length direction X or the width direction Y of the injection molded product 3, and the third ejector pins 2230 are evenly arranged on the inner frame 301, thereby ensuring that the inner frame 301 is evenly stressed during ejection. Optionally, some of the second intersection positions 313 are correspondingly provided with a third ejector pin 2230, and further, all of the second intersection positions 313 are correspondingly provided with a third ejector pin 2230.

[0053] like Figure 3 and Fig. 9 As shown, the first intersection position 312, the second intersection position 313 and the corners of the inner frame 301 are provided with a positioning frame 32, and the ejector mechanism 22 includes a fourth ejector group 226, and the fourth ejector group 226 includes a plurality of fourth ejectors 2260 for abutting against the positioning frame 32. The width and thickness of the positioning frame 32 are both smaller than the width and thickness of the frame 31, and the overall strength is poor, so the fourth ejector 2260 is provided to abut against the positioning frame 32, which can effectively prevent the positioning frame 32 from being deformed or broken during ejection.

[0054] like Fig.10 As shown, the fourth ejector 2260 includes an ejection portion 2261 that abuts against the injection molded product 3 and a rod portion 2262 connected to the ejection portion 2261. The cross-sectional area of ​​the ejection portion 2261 is smaller than that of the rod portion 2262. The cross-sectional area refers to the area of ​​the cross section cut by a plane perpendicular to the axis of the ejector. By designing the fourth ejector 2260 to be smaller at the bottom and larger at the top, the end of the fourth ejector 2260 is fully abutted against the positioning frame 32, and its diameter does not exceed the width of the portion in contact with the positioning frame 32, so as to reduce the impact on the structure of the male mold core 21 and the injection molded product 3; at the same time, this design can improve the strength of the fourth ejector 2260 and avoid deformation of the fourth ejector 2260 during the ejection process. It can be understood that the end diameters of other ejectors are also set to be less than or equal to the width of the position where they abut.

[0055] Further, such as Figure 4 As shown, the positioning frame 32 at the first intersection position 312 is rectangular, the positioning frame 32 at the second intersection position 313 is a half-rectangular structure, and the positioning frame 32 at the corner of the inner frame 301 is a quarter-rectangular structure. Optionally, each corner and / or each side of the rectangular structure is provided with a fourth ejector pin 2260, so that the positioning frame 32 is evenly stressed during ejection, reducing the risk of deformation. Fig. 9 In the illustrated embodiment, a fourth ejector pin 2260 is disposed at each corner of the rectangular structure.

[0056] The frame 30 is rectangular, the ejector mechanism 22 includes a fifth ejector group 227, the fifth ejector group 227 includes a plurality of fifth ejector pins 2270, the skeleton 31 includes a plurality of first ribs 310 arranged along the length direction X and a plurality of second ribs 311 arranged along the width direction, the first ribs 310 and the second ribs 311 are vertically arranged, the fifth ejector pin 2270 abuts against the second rib 311 between two adjacent first ribs 310 and / or the fifth ejector pin 2270 abuts against the first rib 310 between two adjacent second ribs 311.

[0057] like Figure 4 and Fig.11 As shown, the first rib 310 and the second rib 311 are arranged perpendicular to each other, and the first rib 310 and the second rib 311 are both arranged perpendicular to the side of the inner frame 301 connected thereto. In the figure, there are seven first ribs 310 with the same spacing between them, and there are five second ribs 311 with the same spacing between them; the width B1 of the first rib 310 is greater than the width B2 of the second rib 311, and the distance between two adjacent second ribs 311 is greater than the distance between two adjacent first ribs 310. Optionally, the fifth ejector pin 2270 abuts against the first rib 310 between two adjacent second ribs 311 to reduce the difficulty of manufacturing the mold; the fifth ejector pin 2270 is also abutted against the second rib 311 between the outermost first rib 310 and the inner frame 301. Optionally, the abutment position of the fifth ejector pin 2270 is located between two adjacent positioning frames 32. Furthermore, a fifth ejector pin 2270 is provided between the two adjacent positioning frames 32 and is located in the middle position of the adjacent positioning frames 32, so that the skeleton 31 is evenly stressed during ejection, thereby reducing the risk of deformation of the injection molded product 3.

[0058] It is understandable that the size of the first intersection position 312 and the second intersection position 313 is larger than the width B3 of the positioning frame 32, the width B1 of the first rib 310 and the width B2 of the second rib 311, that is, the first intersection position 312 and the second intersection position 313 have a larger area that can be in contact with the ejector. Optionally, the contact area between the first ejector 2200 and the third ejector 2230 and the injection molded product 3 is larger than the contact area between the fourth ejector 2260 and the fifth ejector 2270 and the injection molded product 3, that is, the diameter of the first ejector 2200 and the third ejector 2230 is larger than the diameter of the fourth ejector 2260 and the fifth ejector 2270. According to the size of the position where the ejector abuts, an ejector of a suitable size is selected to abut with it, so that the end of the ejector abutting with the injection molded product 3 can contact the abutting position as much as possible, thereby increasing the force area and reducing the risk of uneven force on the injection molded product 3 during the abutment process.

[0059] Optionally, the ejector pins are symmetrical with respect to a center line of the injection molded product 3 that is parallel to the length direction X or the width direction Y, so that the force on the injection molded product 3 is more uniform and symmetrical, thereby reducing the risk of deformation of the injection molded product during ejection.

[0060] In one embodiment, at least 70% of the first intersection positions 312 are provided with a corresponding first ejector pin 2200. Optionally, the first ejector pins 2200 are evenly distributed on the skeleton 31, so that the skeleton 31 is evenly stressed, thereby reducing the risk of deformation of the injection molded product 3 during the ejection process. In another embodiment, each first intersection position 312 is provided with a corresponding first ejector pin 2200.

[0061] like Figures 1 to 3 As shown, the injection mold also includes a mother mold plate 11 connected to the mother mold core 10, a runner plate 14 abutting against the mother mold core 10, a mother mold base plate 12 connected to the mother mold plate 11, and a gate sleeve 13 connected to the injection molding machine nozzle.

[0062] The above are only specific implementations of the present invention, and any improvements made based on the concept of the present invention are considered to be within the protection scope of the present invention.

Claims

1. An injection mold, characterized in that: include: A mother mold (1), comprising a mother mold core (10); A male mold (2) comprises a male mold core (21) and an ejector mechanism (22); a mold cavity (100) for accommodating an injection molded product (3) is formed between the male mold core (21) and the female mold core (10); after injection molding is completed and the mold is opened, the injection molded product (3) is located on the male mold core (21); the ejector mechanism (22) comprises a first ejector group (220) for ejecting the injection molded product (3); the first ejector group (220) comprises a plurality of first ejectors (2200); The injection molded product (3) comprises a frame (30) and a skeleton (31) connected to the frame (30) and having a mesh structure; The first ejector pin (2200) passes through the male mold core (21) and abuts against a first intersection position (312) of the frame (31).

2. The injection mold according to claim 1, characterized in that: A plurality of connecting handles (300) are arranged on the outer side of the frame (30), and the connecting handles (300) include a column portion (3000) connected to the frame (30) and a head portion (3001) arranged at the outer end of the column portion (3000). The ejector mechanism (22) also includes a second ejector group (224), and the second ejector group (224) includes a plurality of second ejectors (2240) for abutting against the head portion (3001).

3. The injection mold according to claim 1, characterized in that: The ejector mechanism (22) comprises a fixing member (221) for fixing the first ejector group (220) and an elastic member (222); the male mold core (21) is provided with a through hole; the first ejector (2200) passes through the through hole and abuts against the injection molded product (3).

4. The injection mold according to claim 1, characterized in that: The male mold (2) comprises a male mold plate (20), a male mold base plate (24), and a mold foot (23) arranged between the male mold plate (20) and the male mold base plate (24); a cavity (230) is formed between the mold feet (23); the ejector mechanism (22) is arranged in the cavity (230) and is connected to a push rod of an injection molding machine, and can move in the cavity (230) under the drive of the push rod.

5. The injection mold according to claim 1, characterized in that: The frame (30) comprises an outer frame (302) and an inner frame (301); the position where the frame (31) is connected to the inner frame (301) is a second intersection position (313); the ejector mechanism (22) further comprises a third ejector group (223); the third ejector group (223) comprises a plurality of third ejectors (2230) abutting against the second intersection position (313); The third ejector pins (2230) are correspondingly arranged at some or all of the second intersection positions (313).

6. The injection mold according to claim 5, characterized in that: The first intersection position (312), the second intersection position (313) and the corners of the inner frame (301) are all provided with positioning frames (32); the ejector mechanism (22) comprises a fourth ejector group (226); the fourth ejector group (226) comprises a plurality of fourth ejectors (2260) for abutting against the positioning frames (32); Part or all of the positioning frames (32) are correspondingly provided with the fourth ejector pin (2260).

7. The injection mold according to claim 6, characterized in that: The positioning frame (32) located at the first intersection position (312) is rectangular, the positioning frame (32) located at the second intersection position (313) is a half-rectangular structure, and the positioning frame (32) located at the corner of the inner frame (301) is a quarter-rectangular structure; A fourth ejector pin (2260) is correspondingly provided at each corner and / or each side of the rectangular structure.

8. The injection mold according to claim 7, characterized in that: The frame (30) is rectangular, the frame (31) is arranged perpendicularly to the inner frame (301), the ejector mechanism (22) comprises a fifth ejector group (227), the fifth ejector group (227) comprises a plurality of fifth ejectors (2270), the frame (31) comprises a first rib (310) and a second rib (311) arranged perpendicularly to the first rib (310), the fifth ejector (2270) is abutted on the second rib (311) between two adjacent first ribs (310) and / or the fifth ejector (2270) is abutted on the first rib (310) between two adjacent second ribs (311).

9. The injection mold according to claim 8, characterized in that: The contact areas between the first ejector pin (2200) and the third ejector pin (2230) and the injection molded product (3) are greater than the contact areas between the fourth ejector pin (2260) and the fifth ejector pin (2270) and the injection molded product (3).

10. The injection mold according to any one of claims 1 to 9, characterized in that: At least 70% of the first intersection positions (312) are correspondingly provided with a first ejector pin (2200); or, Each of the first intersection positions (312) is correspondingly provided with a first ejector pin (2200).

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