Mold locking mechanism and injection mold

Abstract

The application relates to the technical field of molds, and discloses a mold locking mechanism and an injection mold. The mold locking mechanism comprises a movable mold plate, a fixed mold plate, a mold locking piece and a limiting piece. The movable mold plate is provided with a first connecting shaft; the fixed mold plate is provided with a second connecting shaft and a third connecting shaft; the first end of the mold locking piece is rotatably connected with the second connecting shaft, and the second end of the mold locking piece is connected with the first connecting shaft or the third connecting shaft; the limiting piece is movably arranged on the second connecting shaft, and is configured to: when being in a first position, the mold locking piece is in a locked state; and when being in a second position, the mold locking piece is in an unlocked state, and the mold locking piece is allowed to move along the axial direction of the second connecting shaft to be separated from the first connecting shaft or the third connecting shaft. The mold locking mechanism can realize the quick conversion between the locked state and the unlocked state of the mold locking piece through the switching of the limiting piece between the first position and the second position, does not need to repeatedly disassemble screws, can simplify the mold opening and closing operation process, and thus the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of mold technology, specifically to a mold locking mechanism and an injection mold. Background Technology

[0002] In current mold production and maintenance processes, the commonly used mold locking mechanism structure is relatively traditional. The mold locking mechanism usually consists of a locking module and two screws. The locking module has two screw through holes. The locking module spans the mold opening surface between the moving platen and the fixed platen. One screw locks the locking module to the fixed platen, and the other screw connects the locking module to the moving platen.

[0003] When the mold needs to be opened for production adjustments or maintenance, the operator first uses a wrench to remove the locking screws on the moving platen side, and then loosens the locking screws on the fixed platen side to allow the locking module to rotate. Subsequently, the locking module is rotated as a whole, and the previously removed screws are used to re-secure the locking module to the pre-set threaded hole position on the fixed platen. However, during the mold closing stage, the above mold opening steps must be performed in complete reverse order. This results in the screws needing to be removed and installed several times each time the mold is opened or closed, a cumbersome and time-consuming process that significantly reduces production efficiency. Utility Model Content

[0004] The purpose of this application is to provide a mold locking mechanism and injection mold to solve the problems of cumbersome mold opening and closing operations and low production efficiency.

[0005] To achieve the objectives of this application, the following technical solution is provided: In a first aspect, this application provides a mold-locking mechanism, comprising: A movable template, wherein a first connecting shaft is provided on the movable template; A template, wherein a second connecting shaft and a third connecting shaft are provided on the template; A locking mold component, wherein a first end of the locking mold component is rotatably connected to a second connecting shaft, and a second end of the locking mold component is connected to either the first connecting shaft or the third connecting shaft; A limiting member is movably disposed on the second connecting shaft. The limiting member is configured such that, in a first position, the locking member is in a locked state; and in a second position, the locking member is in an unlocked state, allowing the locking member to move axially along the second connecting shaft to separate from the first connecting shaft or the third connecting shaft.

[0006] In one embodiment, the first end of the second connecting shaft is connected to the fixed template, the limiting member is connected to the second end of the second connecting shaft, and the locking member includes a first side and a second side disposed opposite to each other in the axial direction of the second connecting shaft. When the limiting member is in the first position, the locking member is sleeved on the middle part of the second connecting shaft, the middle part of the second connecting shaft is located between the first end and the second end of the second connecting shaft, the fixed template abuts against the first side surface, and the limiting member abuts against the second side surface; When the limiting member is in the second position, the limiting member is separated from the second side, and the locking member is sleeved on the second end of the second connecting shaft.

[0007] In one embodiment, a hinge shaft is provided at the second end of the second connecting shaft, the axis of the hinge shaft being perpendicular to the axis of the second connecting shaft, and the first end of the limiting member is hinged to the hinge shaft; When the limiting member is in the first position, the length direction of the limiting member intersects with the axial direction of the second connecting shaft; When the limiting member is in the second position, the length direction of the limiting member is in the same direction as the axial direction of the second connecting shaft.

[0008] In one embodiment, the second end of the second connecting shaft is provided with a mounting groove, the hinge shaft passes through the mounting groove radially along the second connecting shaft, and the first end of the limiting member is inserted into the mounting groove.

[0009] In one embodiment, the thickness of the limiting member is greater than the width of the mounting groove in the axial direction of the hinge shaft.

[0010] In one embodiment, the first end of the locking mold is provided with a first mounting hole, the second end of the locking mold is provided with a second mounting hole, the first mounting hole and the second mounting hole both penetrate the first side and the second side, the second connecting shaft is inserted into the first mounting hole, and the first connecting shaft or the third connecting shaft is inserted into the second mounting hole; When the limiting member is in the second position, the limiting member is inserted into the first mounting hole.

[0011] In one embodiment, the second end of the limiting member is provided with a stop block. When the limiting member is in the second position, the stop block can prevent the locking member from disengaging from the limiting member.

[0012] In one embodiment, the first end of the limiting member is provided with an arc portion, and at least a portion of the arc portion extends out of the mounting groove.

[0013] In one embodiment, the length of the second connecting shaft extending beyond the fixed template is greater than the length of the first connecting shaft extending beyond the moving template and the length of the third connecting shaft extending beyond the fixed template.

[0014] Secondly, this application also provides an injection mold including the clamping mechanism described in any one of the various embodiments of the first aspect.

[0015] Compared with the prior art, this application has at least the following beneficial effects: The mold-locking mechanism of this application has a limiting member that can be switched between a first position and a second position, which is movably set on the second connecting shaft. In the first position, the limiting member can form a bidirectional axial limit on the mold-locking member together with the fixed template; in the second position, it releases the axial limit on the mold-locking member, thereby realizing the rapid switching between the locked and unlocked states of the mold-locking member. The operator does not need to use tools to remove the screws, but only needs to manually flip the limiting member to complete the mold opening and closing preparation, which greatly simplifies the operation process and shortens the screw disassembly and assembly time of several minutes to several seconds, thereby improving production efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the locking mechanism of the limiting member in the first position according to one embodiment of this application; Figure 2 This is a perspective view of the locking mechanism of the limiting member in the second position according to one embodiment of this application; Figure 3 This is an exploded view of a portion of the mold-locking mechanism according to one embodiment of this application; Figure 4 This is a top view of a mold-locking mechanism according to one embodiment of this application; Figure 5 for Figure 4 Sectional view of AA; Figure 6 This is a perspective view of the locking mechanism when the locking member is separated from the first connecting shaft according to one embodiment of this application; Figure 7 This is a perspective view of the locking mechanism when the locking member is separated from the third connecting shaft according to one embodiment of this application; Figure 8 This is a perspective view of the locking mechanism when the locking member is connected to the third connecting shaft according to one embodiment of this application.

[0018] Explanation of reference numerals in the attached figures: 100. Moving template; 110. First connecting shaft; 111. Protrusion; 200. Fixed template; 210. Second connecting shaft; 211. Mounting groove; 220. Third connecting shaft; 300. Locking component; 310. First side; 320. Second side; 330. First mounting hole; 340. Second mounting hole; 400. Limiting component; 410. Stop; 420. Arc portion; 500. Hinge shaft. Detailed Implementation

[0019] The following are specific embodiments of this application, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of this application. However, this application is not limited to these embodiments.

[0020] refer to Figure 1 , Figure 2 and Figure 3 This application provides a mold-locking mechanism, including a moving mold plate 100, a fixed mold plate 200, a mold-locking component 300, and a limiting component 400.

[0021] The movable template 100 is a template in the injection mold that can move along a preset path. The moving mold portion of the mold is mounted on it, and it works in conjunction with the injection mechanism to complete the injection molding process. The movable template 100 is provided with a first connecting shaft 110, which can be fixedly mounted on the movable template 100, for example, through welding, threaded connection, or press-fitting. The first connecting shaft 110 serves as a connection point for the locking mold component 300, enabling the connection between the locking mold component 300 and the movable template 100. As one implementation, the first connecting shaft 110 can be a simple cylindrical pin, with one end fixed to the movable template 100 and the other end extending out for connection to the locking mold component 300.

[0022] The fixed template 200 is a template that remains stationary in the injection mold. It typically houses the fixed mold portion of the mold and is positioned opposite the moving template 100. The fixed template 200 is equipped with a second connecting shaft 210 and a third connecting shaft 220. The second connecting shaft 210 is rotatably connected to the first end of the locking member 300 and supports the limiting member 400. The third connecting shaft 220 serves as a spare or alternative connection point for the second end of the locking member 300. For example, both the second connecting shaft 210 and the third connecting shaft 220 can be threaded to the fixed template 200 or integrally formed onto it.

[0023] The locking mold component 300 is the core component for realizing the locking and unlocking functions of the mold. The first end of the locking mold component 300 is rotatably connected to the second connecting shaft 210, allowing the locking mold component 300 to rotate around the second connecting shaft 210. For example, the first end of the locking mold component 300 may have a through hole, which is fitted onto the second connecting shaft 210, and low-friction rotation is achieved through bearings or bushings. The second end of the locking mold component 300 is connected to either the first connecting shaft 110 or the third connecting shaft 220. When the second end of the locking mold component 300 is connected to the first connecting shaft 110, the moving mold plate 100 and the fixed mold plate 200 are locked. When unlocking is required, the second end of the locking mold component 300 can be separated from the first connecting shaft 110 and selectively connected to the third connecting shaft 220.

[0024] The limiting member 400 is an auxiliary component used to control the working state of the locking member 300. The limiting member 400 is movably disposed on the second connecting shaft 210. The limiting member 400 is configured such that: in the first position, the locking member 300 is in a locked state; in the second position, the locking member 300 is in an unlocked state, allowing the locking member 300 to move axially along the second connecting shaft 210 to separate from the first connecting shaft 110 or the third connecting shaft 220. For example, the limiting member 400 can be a sleeve that slides axially on the second connecting shaft 210; or, the limiting member 400 can be a rod, one end of which is connected to the second connecting shaft 210 by a pin, thereby allowing rotation about the pin.

[0025] When the limiting member 400 is in the first position, it positions or supports the locking member 300, preventing it from separating from the first connecting shaft 110 or the third connecting shaft 220, thus ensuring the mold is locked. For example, in the first position, the limiting member 400 can abut against the side of the locking member 300, thereby restricting its axial movement along the second connecting shaft 210. When the limiting member 400 switches to the second position, it releases the restriction on the locking member 300, allowing it to move axially along the second connecting shaft 210, enabling its second end to disengage from the first connecting shaft 110 or the third connecting shaft 220, thereby unlocking the mold. For example, in the second position, the limiting member 400 can be positioned away from the side of the locking member 300, providing space for its axial movement.

[0026] The mold-locking mechanism of this application, by movably mounting the limiting member 400 on the second connecting shaft 210, enables rapid switching between the locked and unlocked states of the mold-locking member 300, and allows the mold-locking member 300 to move axially along the second connecting shaft 210 to separate from the first connecting shaft 110 or the third connecting shaft 220. Therefore, this mold-locking mechanism simplifies the mold opening and closing operation process, thereby improving production efficiency.

[0027] The first end of the second connecting shaft 210 is connected to the fixed template 200, and the limiting member 400 is connected to the second end of the second connecting shaft 210. The locking member 300 includes a first side surface 310 and a second side surface 320 that are axially opposite to each other on the second connecting shaft 210. Specifically, the second connecting shaft 210 serves as the rotation fulcrum and axial movement path of the locking member 300. Its first end is firmly connected to the fixed template 200, for example, through a threaded connection, welding, or interference fit, providing a stable reference. The limiting member 400 is connected to the second end of the second connecting shaft 210, that is, the end away from the fixed template 200, so that the limiting member 400 can operate and limit the locking member 300 from the end of the second connecting shaft 210, facilitating the axial positioning and release of the locking member 300. The limiting member 400 can be connected to the second end of the second connecting shaft 210 in a detachable or fixed manner, for example, by bolts, pins, or clips. The first side 310 and the second side 320 provided on the locking mold 300 are structures that axially abut against the fixed mold 200 and the limiting member 400. The first side 310 is used to contact the fixed mold 200 to provide axial support in the locked state, while the second side 320 is used to contact the limiting member 400 to realize the limiting and unlocking functions.

[0028] When the limiting member 400 is in the first position, the locking member 300 is fitted onto the middle portion of the second connecting shaft 210, which is located between the first and second ends of the second connecting shaft 210. The fixed template 200 abuts against the first side surface 310, and the limiting member 400 abuts against the second side surface 320. In this state, the locking member 300 is positioned in the middle portion of the second connecting shaft 210, and there is a fitting clearance between its inner hole and the outer diameter of the second connecting shaft 210, allowing it to be fitted. The fixed template 200 abuts against the first side surface 310 of the locking member 300, providing axial support on one side; simultaneously, the limiting member 400 abuts against the second side surface 320 of the locking member 300, providing axial support on the other side. The abutment between the fixed template 200 and the first side surface 310 of the locking member 300, and between the limiting member 400 and the second side surface 320 of the locking member 300, can be direct contact or contact through gaskets or buffers. This bidirectional contact ensures that the axial position of the locking component 300 is fixed in the locked state, thereby guaranteeing the stability of the locking mechanism.

[0029] When the limiting member 400 is in the second position, it separates from the second side surface 320, and the locking member 300 is fitted onto the second end of the second connecting shaft 210. Specifically, when the limiting member 400 moves to the second position, for example through its own rotation, translation, or swing, it no longer abuts against the second side surface 320 of the locking member 300, thereby releasing the axial constraint on the locking member 300. At this time, the locking member 300 can move freely along the axial direction of the second connecting shaft 210 and is finally fitted onto the second end of the second connecting shaft 210. That is, after unlocking, the locking member 300 can move along the second connecting shaft 210 away from the fixed template 200 until the end of its inner hole aligns with or exceeds the end of the second connecting shaft 210, thereby achieving separation from the first connecting shaft 110 or the third connecting shaft 220.

[0030] refer to Figures 3-8 The second end of the second connecting shaft 210 is provided with a hinge shaft 500, the axis of the hinge shaft 500 is perpendicular to the axis of the second connecting shaft 210, and the first end of the limiting member 400 is hinged to the hinge shaft 500; when the limiting member 400 is in the first position, the length direction of the limiting member 400 intersects the axial direction of the second connecting shaft 210; when the limiting member 400 is in the second position, the length direction of the limiting member 400 is in the same direction as the axial direction of the second connecting shaft 210.

[0031] Specifically, the second end of the second connecting shaft 210 is configured with a hinge shaft 500, which can be a pin, bolt, or rivet, and serves to provide a pivot point for the limiting member 400. The axis of the hinge shaft 500 is designed to be perpendicular to the axis of the second connecting shaft 210, meaning the limiting member 400 will swing about an axis orthogonal to the main axis of the second connecting shaft 210. The first end of the limiting member 400 is hinged to the hinge shaft 500 through a hole or lug structure, thereby allowing the limiting member 400 to rotate about the hinge shaft 500.

[0032] When the limiting member 400 is in the first position, it is configured such that its length direction intersects the axial direction of the second connecting shaft 210 at an angle. For example, the limiting member 400 can swing to a position approximately perpendicular to the axial direction of the second connecting shaft 210, or span the second connecting shaft 210 at a certain angle, so that the limiting member 400 can effectively block the axial movement of the locking member 300, thereby fixing the locking member 300 in the middle of the second connecting shaft 210 and keeping the locking member 300 in a locked state.

[0033] When the limiting member 400 switches to the second position, it is configured so that its length direction is aligned with the axial direction of the second connecting shaft 210, i.e., approximately parallel. For example, the limiting member 400 can rotate about 90 degrees about the hinge shaft 500, swinging it from the intersection position to a position aligned with the axis of the second connecting shaft 210. In this parallel state, the limiting member 400 no longer obstructs the axial movement of the locking member 300, thereby allowing the locking member 300 to move freely along the axial direction of the second connecting shaft 210, thus placing the locking member 300 in the unlocked state.

[0034] In one embodiment, the second end of the second connecting shaft 210 is provided with a mounting groove 211, the hinge shaft 500 passes through the mounting groove 211 radially along the second connecting shaft 210, and the first end of the limiting member 400 is inserted into the mounting groove 211.

[0035] The mounting groove 211 is a recessed structure located at the second end of the second connecting shaft 210, capable of accommodating the first end of the limiting member 400. The hinge shaft 500 extends radially through the mounting groove 211 along the second connecting shaft 210. Both ends or a portion of the length of the hinge shaft 500 are supported or fixed by the wall of the mounting groove 211, providing a reliable rotation fulcrum for the limiting member 400. The first end of the limiting member 400 is designed to be inserted into the mounting groove 211 and forms a hinged connection with the hinge shaft 500 extending radially through the mounting groove 211. The rotating portion of the limiting member 400 is effectively housed and protected, reducing interference from external factors on its movement and function.

[0036] Furthermore, along the axial direction of the hinge shaft 500, the thickness of the limiting member 400 is greater than the width of the mounting groove 211. The thickness of the limiting member 400 refers to its dimension along the axial direction of the hinge shaft 500, while the width of the mounting groove 211 refers to its dimension along the axial direction of the hinge shaft 500. Because the thickness of the limiting member 400 is greater than the width of the mounting groove 211, when the limiting member 400 is inserted into the mounting groove 211, it forms an interference fit or a tight fit, enhancing the stability of the limiting member 400 within the mounting groove 211. This prevents the limiting member 400 from rotating on its own due to vibration or impact without manual manipulation, thus ensuring that the limiting member 400 can remain in the first or second position, improving the overall operating accuracy and reliability of the mold-locking mechanism.

[0037] The first end of the locking mold 300 is provided with a first mounting hole 330, and the second end of the locking mold 300 is provided with a second mounting hole 340. Both the first mounting hole 330 and the second mounting hole 340 penetrate the first side surface 310 and the second side surface 320. The second connecting shaft 210 is inserted into the first mounting hole 330, and the first connecting shaft 110 or the third connecting shaft 220 is inserted into the second mounting hole 340. When the limiting member 400 is in the second position, the limiting member 400 is inserted into the first mounting hole 330.

[0038] Specifically, a first mounting hole 330 and a second mounting hole 340 are respectively provided at the first and second ends of the locking mold component 300 to ensure the accuracy and stability of the connection between the locking mold component 300 and each connecting shaft. When the limiting component 400 is in the second position, the limiting component 400 is inserted into the first mounting hole 330. This not only provides guidance for the axial movement of the locking mold component 300 on the second connecting shaft 210, effectively avoiding skewing or jamming during movement, but also provides temporary support and positioning for the locking mold component 300 when it is separated from the first connecting shaft 110 or the third connecting shaft 220, significantly improving the smoothness and stability of the unlocking operation. For example, a part of the limiting component 400 can be designed as a pin, rod, or plate, with a cross-sectional dimension slightly smaller than the inner diameter of the first mounting hole 330, to facilitate smooth insertion.

[0039] The second end of the limiting member 400 is provided with a stop 410. When the limiting member 400 is in the second position, the stop 410 can prevent the locking member 300 from disengaging from the limiting member 400. The stop 410 is a limiting structure provided at the second end of the limiting member 400. The stop 410 can be integrally formed with the limiting member 400, or it can be a separate component that is firmly fixed to the second end of the limiting member 400 by welding, bolting, riveting, or other methods.

[0040] When the limiting member 400 is in the second position, i.e., the mold-locking mechanism is in the unlocked state, and the limiting member 400 has been inserted into the first mounting hole 330 of the mold-locking member 300, the mold-locking member 300 is allowed to move axially along the second connecting shaft 210. In this state, the stop 410 provided at the second end of the limiting member 400 can restrict the mold-locking member 300 axially along the second connecting shaft 210, thereby preventing the mold-locking member 300 from completely sliding out of the limiting member 400, and avoiding equipment damage or personal injury caused by the accidental detachment of the mold-locking member 300.

[0041] In one embodiment, the first end of the limiting member 400 is provided with an arcuate portion 420, and at least a portion of the arcuate portion 420 extends out of the mounting groove 211. The arcuate portion 420 refers to a structure in which one or more edges of the first end of the limiting member 400 are designed with an arcuate profile, which helps guide the smooth rotation of the limiting member 400 within the mounting groove 211. Simultaneously, since at least a portion of the arcuate portion 420 extends out of the mounting groove 211, when the limiting member 400 is in the first position, a portion or most of the arcuate portion 420 is still exposed outside the mounting groove 211, allowing the arcuate portion 420 of the limiting member 400 to also abut against the second side 320 of the locking member 300. This further suppresses the limiting member 400 from rotating due to vibration or impact without manual manipulation, ensuring the axial position of the locking member 300 is fixed in the locked state.

[0042] Furthermore, the length of the second connecting shaft 210 extending out of the fixed template 200 is greater than the length of the first connecting shaft 110 extending out of the moving template 100 and the length of the third connecting shaft 220 extending out of the fixed template 200. This gives the second connecting shaft 210 a longer effective working section, providing sufficient margin for the locking mold 300 to move axially along the second connecting shaft 210 in the unlocked state, thereby enabling it to completely disengage from the first connecting shaft 110 or the third connecting shaft 220.

[0043] The first connecting shaft 110 has a protrusion 111 at one end extending out of the moving template 100. The protrusion 111 is used to cooperate with a wrench to realize the installation and removal of the first connecting shaft 110.

[0044] This application also provides an injection mold, including a mold-locking mechanism. Traditional injection mold molds often require multiple disassembly and reassembly of the internal hexagon screws using tools during mold opening and closing operations. This process is cumbersome and limits work efficiency.

[0045] In this embodiment, the mold-locking mechanism movably sets the limiting member 400 on the second connecting shaft 210 and cooperates with the mold-locking member 300. The state switching of the mold-locking member 300 only requires operating the limiting member 400, without the need for tools to remove the screws, which significantly improves the convenience of mold opening and closing operations, thereby improving production efficiency.

[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0047] Furthermore, the use of terms such as "first," "second," and "a" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0049] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

Claims

1. A mold-locking mechanism, characterized in that, include: A movable template, wherein a first connecting shaft is provided on the movable template; A fixed template is provided with a second connecting shaft and a third connecting shaft, and the first end of the second connecting shaft is connected to the fixed template. A locking mold, wherein a first end of the locking mold is rotatably connected to a second connecting shaft, and a second end of the locking mold is connected to either the first connecting shaft or the third connecting shaft; the locking mold includes a first side and a second side disposed opposite to each other in the axial direction of the second connecting shaft. A limiting member is movably disposed on the second end of the second connecting shaft, and the limiting member is configured as follows: In the first position, the locking mold is locked, the locking mold is sleeved on the middle part of the second connecting shaft, the middle part of the second connecting shaft is located between the first end and the second end of the second connecting shaft, the fixed template abuts against the first side surface, and the limiting member abuts against the second side surface; In the second position, the locking member is in the unlocked state, the limiting member is separated from the second side, and the locking member is allowed to move axially along the second connecting shaft and be sleeved on the second end of the second connecting shaft to separate from the first connecting shaft or the third connecting shaft.

2. The mold-locking mechanism according to claim 1, characterized in that, The second end of the second connecting shaft is provided with a hinge shaft, the axis of the hinge shaft is perpendicular to the axis of the second connecting shaft, and the first end of the limiting member is hinged to the hinge shaft; When the limiting member is in the first position, the length direction of the limiting member intersects with the axial direction of the second connecting shaft; When the limiting member is in the second position, the length direction of the limiting member is in the same direction as the axial direction of the second connecting shaft.

3. The mold-locking mechanism according to claim 2, characterized in that, The second end of the second connecting shaft is provided with a mounting groove, the hinge shaft passes through the mounting groove radially along the second connecting shaft, and the first end of the limiting member is inserted into the mounting groove.

4. The mold-locking mechanism according to claim 3, characterized in that, Along the axial direction of the hinge shaft, the thickness of the limiting member is greater than the width of the mounting groove.

5. The mold-locking mechanism according to claim 3, characterized in that, The first end of the locking mold is provided with a first mounting hole, and the second end of the locking mold is provided with a second mounting hole. The first mounting hole and the second mounting hole both penetrate the first side and the second side. The second connecting shaft is inserted into the first mounting hole, and the first connecting shaft or the third connecting shaft is inserted into the second mounting hole. When the limiting member is in the second position, the limiting member is inserted into the first mounting hole.

6. The mold-locking mechanism according to claim 5, characterized in that, The second end of the limiting member is provided with a stop block. When the limiting member is in the second position, the stop block can prevent the locking member from disengaging from the limiting member.

7. The mold-locking mechanism according to claim 3, characterized in that, The first end of the limiting member is provided with an arc portion, and at least a portion of the arc portion extends out of the mounting groove.

8. The mold-locking mechanism according to claim 1, characterized in that, The length of the second connecting shaft extending beyond the fixed template is greater than the length of the first connecting shaft extending beyond the moving template and the length of the third connecting shaft extending beyond the fixed template.

9. An injection mold, characterized in that, Includes the mold-locking mechanism as described in any one of claims 1-8.

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