Injection mold positioning mechanism and injection mold

Abstract

The application provides an injection mold positioning mechanism and an injection mold, relates to the field of mold design, and is used for positioning a hardware part with an injection hole in a forming cavity. The injection mold positioning mechanism comprises a fixed mold core, a movable mold core, a fixed mold positioning part and a movable mold positioning part. The fixed mold core and the movable mold core are slidably matched in the mold opening and closing direction, and the two can jointly define the forming cavity when the mold is closed. The fixed mold positioning part is slidably connected with the fixed mold core. The fixed mold positioning part can extend into or leave the forming cavity, and the fixed mold positioning part can be inserted into the injection hole when extending into the forming cavity. The movable mold positioning part is connected with the movable mold core and used for abutting the hardware part on the movable mold core. The positioning of the hardware part is convenient and reliable, and the forming quality of the plastic part is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mold design, in particular to an injection mold positioning mechanism and an injection mold. BACKGROUND

[0002] At present, when some products are injection molded, hardware is directly injection molded with the products. Since the structure of the existing hardware is relatively complex, the hardware needs to be positioned in the molding cavity before being placed in the molding cavity to successfully complete the injection molding operation. In the prior art, a positioning groove is directly arranged on the fixed mold core, and the hardware is clamped in the positioning groove.

[0003] The inventor found that the existing injection mold for molding plastic parts containing hardware has the following disadvantages:

[0004] The hardware is manually placed in the positioning groove. Since the structure of the hardware is complex and the contact surface between the positioning groove and the hardware is large, the hardware needs to be positioned on each surface to perform the injection molding operation. The positioning efficiency is low, the labor intensity is high, and the cost is high. At the same time, the hardware is vertically arranged for positioning by the groove wall of the positioning groove, which is easy to fall out of the positioning groove. The position of the hardware is not accurate, and the hardware may be damaged during mold closing. In addition, flash is easy to occur during injection molding, which affects the molding quality of the plastic part. SUMMARY

[0005] The purpose of the present application is to provide an injection mold positioning mechanism and an injection mold, which can reduce the positioning difficulty of the hardware, improve the efficiency, and have good positioning effect of the hardware and high injection quality.

[0006] The embodiments of the present application are implemented as follows:

[0007] In a first aspect, the present application provides an injection mold positioning mechanism for positioning hardware having an injection hole in a molding cavity, comprising:

[0008] The fixed mold core, the movable mold core, the fixed mold positioning member, and the movable mold positioning member are slidably connected in the mold opening and closing direction, and together define a molding cavity when the mold is closed. The fixed mold positioning member is slidably connected to the fixed mold core, and can extend into or out of the molding cavity. The fixed mold positioning member can be inserted into the injection hole when it extends into the molding cavity. The movable mold positioning member is connected to the movable mold core and used to abut the hardware on the movable mold core.

[0009] In an optional embodiment, the fixed mold positioning member or the movable mold positioning member is provided as a spring needle.

[0010] In an optional embodiment, the injection mold positioning mechanism further comprises a driving assembly connected with the fixed mold positioning member for driving the fixed mold positioning member to move relative to the fixed mold core so as to switch the fixed mold positioning member between the positions of extending into the forming cavity and leaving the forming cavity.

[0011] In an optional embodiment, the driving assembly comprises a first elastic member, a driving plate and a fixed mold ejector pin, one end of the first elastic member is connected with the driving plate and the other end is used for abutting against the fixed mold plate, the fixed mold ejector pin is connected with the driving plate, the fixed mold ejector pin is slidably connected with the fixed mold core, the fixed mold ejector pin is used for abutting against the movable mold core, and the first elastic member is used for making the fixed mold ejector pin have a movement tendency of extending into the forming cavity.

[0012] In an optional embodiment, the side of the fixed mold core close to the movable mold core is provided with a first groove for constituting the forming cavity, and the side of the fixed mold core away from the movable mold core is provided with a first positioning groove; the fixed mold core is provided with a first slide way, both ends of the first slide way respectively penetrate through the bottom wall of the first groove and the bottom wall of the first positioning groove; the driving plate is slidably arranged in the first positioning groove, and the fixed mold ejector pin is slidably arranged in the first slide way.

[0013] The driving plate can abut against the bottom wall of the first positioning groove under the action of the elastic member.

[0014] In an optional embodiment, the number of the fixed mold positioning members is multiple, the multiple fixed mold positioning members are slidably connected with the fixed mold core, and the multiple fixed mold positioning members can be inserted into the corresponding injection holes when extending into the forming cavity.

[0015] In an optional embodiment, the injection mold positioning mechanism further comprises a second elastic member and a mounting plate, one end of the second elastic member is connected with the mounting plate and the other end is used for abutting against the movable mold plate, and the movable mold positioning member is connected with the mounting plate.

[0016] In an optional embodiment, the side of the movable mold core close to the fixed mold core is provided with a second groove for constituting the forming cavity, the side of the movable mold core away from the fixed mold core is provided with a second positioning groove, and the movable mold core is provided with a second slide way simultaneously communicating the second groove and the second positioning groove; the mounting plate is slidably arranged in the second positioning groove, and the movable mold positioning member is slidably arranged in the second slide way.

[0017] The mounting plate can abut against the groove bottom wall of the second positioning groove under the action of the second elastic member.

[0018] In an optional embodiment, the number of the movable die positioning members is multiple and arranged at intervals.

[0019] In a second aspect, the present application provides an injection mold, which comprises:

[0020] the fixed die plate, the movable die plate, the guide mechanism and the injection mold positioning mechanism according to any one of the preceding embodiments; the fixed die core is connected with the fixed die plate, the movable die core is connected with the movable die plate; and the fixed die plate is slidably connected with the movable die plate through the guide mechanism.

[0021] The injection mold positioning mechanism according to the embodiments of the present application has the following advantages:

[0022] In summary, the injection mold positioning mechanism according to the embodiments of the present application can make part of the fixed die positioning members extend into the position on the fixed die core corresponding to the molding cavity after the mold is opened, then the injection hole on the hardware is butted against the fixed die positioning member, the hardware is hung on the fixed die positioning member, and the primary positioning of the hardware is completed. Then the mold is closed, the movable die core moves close to the fixed die core, the movable die positioning member on the fixed die core first contacts the hardware, then pushes the hardware to move close to the fixed die core, and in this process, the fixed die positioning member moves synchronously in the direction away from the molding cavity. When the mold is closed, the movable die positioning member just abuts the hardware on the fixed die core, and in the process that the hardware abuts the fixed die core, the fixed die positioning member plays a guiding role, so that the hardware does not rotate and deviate relative to the fixed die core. The position of the hardware is accurate and reliable, and the problems of the hardware being damaged due to the change of the position of the hardware during the mold closing process and affecting the molding quality of the subsequent injection molded product are unlikely to occur. After the injection is completed, the mold is opened, the fixed die positioning member can move together with the hardware in the demolding direction, and after the mold is opened, the fixed die positioning member is again in the position for positioning the hardware, which facilitates the injection operation of the next product. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 It is a structural schematic diagram of the injection mold positioning mechanism according to the embodiments of the present application;

[0025] Figure 2 It is a partial structural schematic diagram of the injection mold positioning mechanism according to the embodiments of the present application;

[0026] Figure 3 It is a structural schematic diagram of the fixed die core according to the embodiments of the present application;

[0027] Figure 4 A structure schematic diagram of a movable mold core of an embodiment of the present application;

[0028] Figure 5 A structure schematic diagram of a movable mold core of an embodiment of the present application; Figure 4 A partial enlarged structure schematic diagram at A in the middle;

[0029] Figure 6 A structure schematic diagram of an injection mold of an embodiment of the present application.

[0030] Figure:

[0031] 001 - hardware; 011 - injection hole; 100 - fixed mold core; 110 - first groove; 120 - first slide; 130 - second slide; 200 - movable mold core; 210 - second groove; 220 - third slide; 300 - fixed mold positioning member; 400 - movable mold positioning member; 500 - driving assembly; 510 - first elastic member; 520 - driving plate; 530 - fixed mold ejector pin; 600 - second elastic member; 700 - mounting plate; 002 - fixed mold plate; 003 - movable mold plate. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope of protection of the present application.

[0034] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0035] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0036] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0037] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] At present, when the plastic part and the hardware part 001 are injected together using an injection mold, the hardware part 001 is positioned using a positioning groove provided on the fixed mold core. Since the hardware part 001 has a complex structure and needs to be positioned on more sides, in the prior art, six sides of the hardware part 001 are used for positioning. In this way, it is necessary to ensure that the six sides of the hardware part 001 are in the correct position, and the operation of placing the hardware part 001 into the positioning groove is difficult, and there is a risk of inaccurate positioning, thereby affecting the injection quality. Moreover, in some injection molds that perform opening and closing mold actions in the horizontal direction, the fixed mold core and the movable mold core are horizontally arranged, and the movable mold core moves towards or away from the fixed mold core in the horizontal direction. In this way, when the hardware part 001 is positioned in the positioning groove, the hardware part 001 is vertically arranged and is easy to fall out of the positioning groove, so that repeated positioning work is needed, which is labor-intensive and low in efficiency.

[0039] Therefore, a designer designs an injection mold positioning mechanism, which can reduce the positioning difficulty of the hardware part 001, improve the efficiency, and has good positioning effect of the hardware part 001 and high injection quality.

[0040] Please refer to Figures 1-4In the embodiment, the injection mold positioning mechanism comprises a fixed mold half 100, a movable mold half 200, a fixed mold positioning member 300 and a movable mold positioning member 400. The fixed mold half 100 and the movable mold half 200 are slidably connected in the mold opening and closing direction, and the two can jointly define a molding cavity when the mold is closed. The fixed mold positioning member 300 is slidably connected with the fixed mold half 100, and the fixed mold positioning member 300 can extend into or away from the molding cavity, and the fixed mold positioning member 300 can be inserted into the injection hole 011 when it extends into the molding cavity. The movable mold positioning member 400 is connected with the movable mold half 200, and is used to abut the hardware 001 on the movable mold half 200.

[0041] The working principle of the injection mold positioning mechanism provided in the embodiment is as follows:

[0042] After the mold is opened, part of the fixed mold positioning member 300 extends into the position on the fixed mold half 100 corresponding to the molding cavity, then the injection hole 011 on the hardware 001 is butt jointed with the fixed mold positioning member 300, the hardware 001 is hung on the fixed mold positioning member 300, and the primary positioning of the hardware 001 is completed. Then the mold is closed, the movable mold half 200 moves close to the fixed mold half 100, the movable mold positioning member 400 on the fixed mold half 100 first contacts the hardware 001, then pushes the hardware 001 to move close to the fixed mold half 100, and in this process, the fixed mold positioning member 300 moves synchronously away from the molding cavity. When the mold is closed, the movable mold positioning member 400 abuts the hardware 001 on the fixed mold half 100, and in the process of abutting the hardware 001 on the fixed mold half 100, the fixed mold positioning member 300 plays a guiding role, so that the hardware 001 does not rotate and deviate relative to the fixed mold half 100. The position of the hardware 001 is accurate and reliable, and the problems of the hardware 001 being crushed due to the change of the position of the hardware 001 during the mold closing process and affecting the molding quality of the subsequent injection molded product are unlikely to occur. After the injection is completed, the mold is opened, and the fixed mold positioning member 300 can move together with the hardware 001 in the demolding direction. After the mold is opened, the fixed mold positioning member 300 is in the position of positioning the hardware 001, which is convenient for the injection operation of the next product.

[0043] In the embodiment, it should be noted that the structure of the hardware 001 is various, and in the embodiment, a hardware 001 is taken as an example for description. The hardware 001 is a long strip-shaped plate, and the hardware 001 extends in a Z shape, and two lugs are arranged on both sides of the hardware 001 in the length direction, and two injection holes 011 arranged in the length direction of the hardware 001 are arranged on each lug. That is, the hardware 001 has eight injection holes 011. And each injection hole 011 is a circular hole.

[0044] In the embodiment, optionally, the fixed die stem 100 is provided with a first groove 110 on the side close to the movable die stem 200 for forming a forming cavity, and is provided with a first positioning groove on the side away from the movable die stem 200; the fixed die stem 100 is provided with four first sliding channels 120 and two second sliding channels 130, both ends of each first sliding channel 120 penetrate the bottom wall of the first groove 110 and the bottom wall of the first positioning groove respectively, and both ends of each second sliding channel 130 penetrate the bottom wall of the first groove 110 and the bottom wall of the first positioning groove respectively. That is, both ends of each first sliding channel 120 and second sliding channel 130 are located on the bottom wall of the first groove 110 and the bottom wall of the first positioning groove respectively, and the first sliding channel 120 and the second sliding channel 130 are arranged in parallel and extend along the thickness direction of the fixed die stem 100.

[0045] In order to realize the movement of the fixed die positioning member 300 in cooperation with the mold opening and closing action, optionally, the fixed die positioning member 300 is realized by a driving assembly 500. The driving assembly 500 includes two first elastic members 510, a driving plate 520 and four fixed die ejector pins 530. One end of each first elastic member 510 is connected with the driving plate 520, and the other end is used for abutting against the fixed die plate 002. The driving plate 520 is a rectangular plate, the driving plate 520 is embedded in the first positioning groove, one end of each of the four fixed die ejector pins 530 is connected with the driving plate 520, and the four fixed die ejector pins 530 are respectively and correspondingly arranged in the four first sliding channels 120 on the fixed die stem 100, each fixed die ejector pin 530 is slidably connected with the corresponding first sliding channel 120, and the sliding direction is the mold opening and closing direction. At the same time, the end of the fixed die ejector pin 530 away from the driving plate 520 can extend into or out of the first groove 110, that is, in the mold opening state, the fixed die ejector pin 530 can extend into the first groove 110, and in the mold closing process, the fixed die ejector pin 530 abuts against the movable die stem 200, so that the movable die stem 200 makes the fixed die ejector pin 530 leave the first groove 110 and retract into the first sliding channel 120. The first elastic member 510 is provided as a spring, and the first elastic member 510 is used to make the fixed die ejector pin 530 have a movement tendency of extending into the forming cavity. After mold opening, under the elastic force of the first elastic member 510, the driving plate 520 moves close to the groove bottom wall of the first positioning groove and lifts the plastic part to realize demolding, at the same time, the fixed die positioning member 300 moves together with the driving plate 520 and extends into the first groove 110, which is beneficial to positioning the new hardware 001. After mold opening, the driving plate 520 abuts against the groove bottom wall of the first positioning groove, so as to limit the length of the fixed die positioning member 300 extending into the first groove 110.

[0046] It should be noted that the fixed die positioning member 300 is provided as a spring pin.

[0047] Optionally, the number of the fixed mold positioning members 300 is two, the two fixed mold positioning members 300 are arranged at intervals, and are respectively used for plug-in cooperation with two injection holes 011 of the eight injection holes 011. The positioning of the hardware 001 is more accurate, and the position is more firm and reliable.

[0048] Please refer to Figure 5 In the embodiment, optionally, the side of the movable mold core 200 close to the fixed mold core 100 is provided with a second groove 210 for constituting a forming cavity, and the side of the movable mold core 200 away from the fixed mold core 100 is provided with a second positioning groove. The movable mold core 200 is provided with four third sliding channels 220 which simultaneously communicate with the second groove 210 and the second positioning groove, and the four third sliding channels 220 are independently arranged.

[0049] In the embodiment, optionally, the injection mold positioning mechanism further comprises two second elastic members 600 and a mounting plate 700. One end of each of the two second elastic members 600 is connected with the mounting plate 700, and the other end of each of the two second elastic members 600 is used for abutting against the movable mold plate 003, so that the mounting plate 700 has a tendency to move close to the groove bottom wall of the second positioning groove. The mounting plate 700 is a rectangular plate, and the mounting plate 700 is slidably arranged in the second positioning groove on the movable mold core 200. The number of the movable mold positioning members 400 is four, one end of each of the four movable mold positioning members 400 is connected with the mounting plate 700, and each of the four movable mold positioning members 400 is correspondingly arranged in the four third sliding channels 220. The end of the movable mold positioning member 400 can abut against the hardware 001, so as to abut the hardware 001 against the fixed mold core 100.

[0050] It should be understood that the movable mold positioning member 400 can be arranged as a spring needle.

[0051] In addition, the first elastic member 510 and the second elastic member 600 can be arranged as springs.

[0052] In the embodiment, when feeding, the mold is in the open mold state, under the action of the first elastic member 510 and the second elastic member 600, the fixed mold positioning member 300 extends into the first groove 110 and has a length of about 5 mm, and the movable mold positioning member 400 extends into the second groove 210 and has a length of about 2.2 mm. Then the hardware 001 is hung on the two fixed mold positioning members 300 by using the two injection holes 011 thereon, and the two fixed mold positioning members 300 cooperate to play a positioning and guiding role. During the mold closing process, the movable mold positioning member 400 contacts the hardware 001, and the movable mold core 200 contacts the fixed mold ejector pin 530, the movable mold core 200 drives the fixed mold ejector pin 530 to retract into the first slide 120, in this process, the hardware 001 moves close to the fixed mold core 100, when the mold closing is completed, the four movable mold positioning members 400 cooperate to press the hardware 001 tightly on the fixed mold core 100, and the positioning is completed. During the whole process, the position of the hardware 001 is always limited by the fixed mold positioning member 300 and the movable mold positioning member 400, and the position is accurate and reliable. After the mold closing is completed, when the fixed mold ejector pin 530 just exits the molding cavity, the fixed mold positioning member 300 also exits the molding cavity at the same time, thereby facilitating ensuring the integrity of the molding cavity. When the mold is closed, the first elastic member 510 and the second elastic member 600 are compressed, and the fixed mold positioning member 300 and the movable mold positioning member 400 do not extend into the molding cavity, and do not affect the molding of the plastic part. When the molding is completed and the mold is opened, under the action of the first elastic member 510 and the second elastic member 600, the plastic part is lifted, which facilitates demolding.

[0053] The injection mold positioning mechanism provided by the embodiment can reduce the positioning difficulty of the hardware 001, improve the efficiency, and has good positioning effect of the hardware 001 and high injection quality.

[0054] Please refer to Figure 6 The embodiment also provides an injection mold, which comprises a fixed mold plate 002, a movable mold plate 003, a guide mechanism (not shown in the figure) and the injection mold positioning mechanism; the fixed mold core 100 is connected with the fixed mold plate 002, the movable mold core 200 is connected with the movable mold plate 003; and the fixed mold plate 002 is slidably connected with the movable mold plate 003 through the guide mechanism.

[0055] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An injection mold positioning mechanism for positioning a hardware (001) having an injection hole (011) in a molding cavity, characterized by, The injection mold positioning mechanism comprises a fixed mold segment (100), a movable mold segment (200), a fixed mold positioning member (300), and a movable mold positioning member (400). The fixed mold segment (100) and the movable mold segment (200) are slidably connected in the mold opening and closing direction, and together define a molding cavity when the mold is closed. The fixed mold positioning member (300) is slidably connected to the fixed mold segment (100), and can extend into or out of the molding cavity. When the fixed mold positioning member (300) extends into the molding cavity, it is inserted into the injection hole (011). The movable mold positioning member (400) is connected to the movable mold segment (200) and is used to abut the hardware (001) against the fixed mold segment (100). The injection mold positioning mechanism further comprises a driving assembly (500) connected to the fixed mold positioning member (300) for driving the fixed mold positioning member (300) to move relative to the fixed mold segment (100) to switch the fixed mold positioning member (300) between the positions of extending into the molding cavity and leaving the molding cavity. The driving assembly (500) comprises a first elastic member (510), a driving plate (520), and a fixed mold ejector pin (530). One end of the first elastic member (510) is connected to the driving plate (520), and the other end is used to abut against the fixed mold plate (002). The fixed mold ejector pin (530) is connected to the driving plate (520), and is slidably connected to the fixed mold segment (100). The fixed mold ejector pin (530) is used to abut against the movable mold segment (200). The first elastic member (510) is used to make the fixed mold ejector pin (530) have a movement tendency of extending into the molding cavity. The hardware is suspended on two fixed mold positioning members by two injection holes thereon, and the two fixed mold positioning members cooperate to play the roles of positioning and guiding. During the mold closing process, the movable mold positioning member contacts the hardware, and the movable mold segment contacts the fixed mold ejector pin. The movable mold segment drives the fixed mold ejector pin to retract into the first sliding channel. In this process, the hardware moves close to the fixed mold segment. After the mold closing is completed, the multiple movable mold positioning members cooperate to press the hardware tightly against the fixed mold segment, completing the positioning.

2. The injection mold positioning mechanism according to claim 1, wherein: The fixed mold positioning member (300) or the movable mold positioning member (400) is provided as a spring needle.

3. The injection mold positioning mechanism according to claim 1, wherein: ​ The fixed mold core (100) is provided with a first groove (110) for forming the forming cavity on one side close to the movable mold core (200), and is provided with a first positioning groove on the side away from the movable mold core (200); the fixed mold core (100) is provided with a first sliding way (120), and the two ends of the first sliding way (120) respectively penetrate the bottom wall of the first groove (110) and the bottom wall of the first positioning groove; the driving plate (520) is slidably arranged in the first positioning groove, and the fixed mold pin (530) is slidably arranged in the first sliding way (120). The driving plate (520) can abut against the bottom wall of the first positioning groove under the action of the elastic member.

4. The positioning mechanism of the injection mold according to claim 1, wherein: The number of the fixed mold positioning members (300) is multiple, and the multiple fixed mold positioning members (300) are slidably connected with the fixed mold core (100), and the multiple fixed mold positioning members (300) can be inserted into the corresponding injection holes (011) when extending into the forming cavity.

5. The positioning mechanism of the injection mold according to claim 1, wherein: The positioning mechanism of the injection mold further comprises a second elastic member (600) and a mounting plate (700), one end of the second elastic member (600) is connected with the mounting plate (700), and the other end is used for abutting against the movable mold plate (003); the movable mold positioning member (400) is connected with the mounting plate (700).

6. The positioning mechanism of the injection mold according to claim 5, wherein: The movable mold core (200) is provided with a second groove (210) for forming the forming cavity on one side close to the fixed mold core (100), and is provided with a second positioning groove on the side away from the fixed mold core (100), and the movable mold core (200) is provided with a second sliding way which simultaneously communicates with the second groove (210) and the second positioning groove; the mounting plate (700) is slidably arranged in the second positioning groove, and the movable mold positioning member (400) is slidably arranged in the second sliding way; The mounting plate (700) can abut against the groove bottom wall of the second positioning groove under the action of the second elastic member (600).

7. The positioning mechanism of the injection mold according to claim 1, wherein: The number of the movable mold positioning members (400) is multiple and is arranged at intervals.

8. An injection mold characterized in that, The injection mold comprises: a fixed mold plate (002), a movable mold plate (003), a guide mechanism and the positioning mechanism of the injection mold according to any one of claims 1-7; the fixed mold core (100) is connected with the fixed mold plate (002), the movable mold core (200) is connected with the movable mold plate (003); and the fixed mold plate (002) is slidably connected with the movable mold plate (003) through the guide mechanism.

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