Locking mechanism of mold, mold and method of using the locking mechanism

Abstract

The present application relates to a locking mechanism for a mold, a mold, and a method for using the locking mechanism. The locking mechanism includes: a first locking assembly fixedly connected to the first mold; a second locking assembly fixedly connected to the second mold; and a third locking assembly fixedly connected to the third mold. During locking, the third locking assembly drives the second locking assembly to lock with the first locking assembly, thereby placing the first, second, and third locking assemblies in a locked state. During unlocking, the third locking assembly drives the second locking assembly to disengage from the first locking assembly, thereby placing the first, second, and third locking assemblies in an unlocked state. The technical solution of the present application effectively solves the problem of mold collision between the mold and the product during mold closing and opening in the prior art.

Description

Technical Field

[0001] The present application relates to the technical field of molds, and in particular to a locking mechanism of a mold, and a method for using the mold and the locking mechanism thereof. Background Art

[0002] Molds are the various molds and tools used to create products through methods such as injection molding, blow molding, extrusion, die-casting, forging, smelting, and stamping. Molds are tools used to create shaped objects and are composed of various parts, with different molds consisting of different parts. With the development of the manufacturing industry, the parts required to be produced are becoming increasingly complex, and mold design is also becoming increasingly complex, often consisting of multiple modules working in conjunction with a mold lifter.

[0003] Existing molds typically consist of multiple mold sliders combined to form the product's injection cavity. To facilitate removal of the molded product, a slanted top must be installed within the injection cavity. This requires a step-by-step process for combining and disassembling the mold sliders, and the order in which the front and rear molds are opened must be maintained during mold closing and mold opening. In existing molds, the front and rear molds can easily close prematurely during mold closing, causing the mold to collide with the slanted top. Furthermore, during mold opening, the mold sliders may not fully open, causing the mold sliders to collide with the product. Both of these collisions reduce mold precision and can lead to mold failure. Summary of the Invention

[0004] The present application provides a locking mechanism of a mold, a mold and a method for using the locking mechanism thereof, which solves the problem of mold collision between the mold and the product during mold closing and opening in the prior art.

[0005] In the first aspect, the present application provides a locking mechanism for a mold, which is used to lock the mold, and the mold includes a stacked first mold, a second mold and a third mold, including: a first locking component, the first locking component can be fixedly connected to the first mold; a second locking component, the second locking component can be connected to the second mold; a third locking component, the third locking component can be fixedly connected to the third mold; when locking, the third locking component drives the second locking component to lock with the first locking component, so that the first locking component, the second locking component and the third locking component are in a locked state; when unlocking, the third locking component drives the second locking component to disengage from the first locking component, so that the first locking component, the second locking component and the third locking component are in an unlocked state.

[0006] Furthermore, the second locking assembly includes an elastic member and a locking block. The elastic member is arranged between the second mold and the locking block to apply a force to the locking block away from the second mold. When the locking mechanism changes from an unlocked state to a locked state, the third locking assembly drives the locking block to move in the first direction, and the elastic member drives the locking block to move in the second direction to engage with the first locking assembly.

[0007] Furthermore, the second locking assembly further includes a limiting pin, the locking block has a long hole extending along the second direction, and the limiting pin is at least partially located in the long hole.

[0008] Furthermore, the second locking assembly also includes a shell, which is located between the second mold and the first locking assembly. The locking block is at least partially located in the shell. The shell is arranged between the locking block and the second mold, and the shell is provided with a mounting hole for the limit pin.

[0009] Furthermore, a receiving slot is provided at one end of the locking block close to the second mold, and a frustum is provided at one end of the locking block away from the second mold. The frustum includes a limiting section and an inclined section. When locked, the third locking component is inserted into the receiving slot, and the first locking component is engaged with the limiting section. When unlocked, the third locking component is pulled out of the receiving slot, and part of the third locking component drives the locking block to move in the second direction through the inclined section.

[0010] Furthermore, the third locking assembly includes a first driving member and a second driving member, which are fixedly connected; when locked, the first driving member is inserted into the accommodating slot to limit the locking block from moving in the opposite direction of the second direction; when unlocked, the first driving member exits the accommodating slot, and the second driving member drives the locking block to move in the opposite direction of the second direction.

[0011] Furthermore, the first driving member includes an adjusting section, which is arranged on the side of the first driving member facing the second locking assembly. The adjusting section is a frustum. When unlocked, the projection of the table surface of the adjusting section on the locking block along the first direction at least partially overlaps with the side of the locking block facing the first driving member; a protrusion is provided on the side of the second driving member facing the second locking assembly. The protrusion is arranged on the side of the second driving member away from the third locking assembly. When unlocked, when the first driving member is away from the second locking assembly, the protrusion drives the locking block to move in the opposite direction of the second direction.

[0012] Furthermore, the first locking assembly includes a base body, which is fixedly arranged and provided with a locking portion. When locked, the locking portion is engaged with the limiting section.

[0013] Furthermore, the locking portion includes a locking piece, which is fixedly arranged and has a slot that engages with the limiting section.

[0014] In a second aspect, the present application further provides a mold, which includes at least one locking mechanism, and the locking mechanism is the locking mechanism of the mold mentioned above.

[0015] In a third aspect, the present application further provides a method for using a mold locking mechanism. The mold locking mechanism is the above-mentioned mold locking mechanism. The method for using the mold locking mechanism comprises the following steps:

[0016] When locked,

[0017] S100 The second mold cooperates with the first mold;

[0018] S200: The third locking assembly drives the second locking assembly to cooperate with the first locking assembly;

[0019] S300 The third mold cooperates with the second mold;

[0020] When unlocking,

[0021] S400: the third mold is released from the second mold;

[0022] S500: The third locking assembly drives the second locking assembly to disengage from the first locking assembly to release;

[0023] S600 The second mold is released from the first mold.

[0024] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0025] The embodiments of the present application provide a locking mechanism for a mold, a mold, and a method for using the locking mechanism thereof, wherein the locking mechanism is used to lock the mold, the mold including a stacked first mold, a second mold, and a third mold, including: a first locking component, the first locking component can be fixedly connected to the first mold; a second locking component, the second locking component can be connected to the second mold; a third locking component, the third locking component can be fixedly connected to the third mold; when locking, the third locking component drives the second locking component to lock with the first locking component, so that the first locking component, the second locking component, and the third locking component are in a locked state; when unlocking, the third locking component drives the second locking component to disengage from the first locking component, so that the first locking component, the second locking component, and the third locking component are in an unlocked state. The third locking component is used to control the matching relationship between the first locking component and the second locking component, thereby controlling the matching relationship between the first mold, the second mold, and the third mold. The sequence of the mold opening and closing processes is now strictly controlled to ensure that adjacent molds do not collide with each other, thereby avoiding mold failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0028] Figure 1A schematic diagram of the installation structure of the locking mechanism of the first embodiment is shown;

[0029] Figure 2 Shown Figure 1 A schematic front view of the mounting structure of the locking mechanism;

[0030] Figure 3 Shown Figure 1 A schematic diagram of a front view of a locking mechanism;

[0031] Figure 4 Shown Figure 3 A schematic diagram of the three-dimensional structure of the locking mechanism;

[0032] Figure 5 Shown Figure 3 A schematic diagram of the locking mechanism in a locked state;

[0033] Figure 6 Shown Figure 3 A schematic diagram of the three-dimensional structure of the first driving member of the locking mechanism;

[0034] Figure 7 Shown Figure 3 A schematic diagram of the three-dimensional structure of the housing of the locking mechanism;

[0035] Figure 8 Shown Figure 5 A schematic diagram of the three-dimensional structure of the locking block of the locking mechanism;

[0036] Figure 9 Shown Figure 2 A schematic diagram of the three-dimensional structure of the seat body of the locking mechanism;

[0037] Figure 10 A schematic diagram of the three-dimensional structure of the locking mechanism of the second embodiment is shown;

[0038] Figure 11 Shown Figure 10 A schematic diagram of the front view of the locking mechanism;

[0039] Figure 12 Shown Figure 10 A schematic diagram of the three-dimensional structure of the first driving member of the locking mechanism;

[0040] Figure 13 Shown Figure 10 Schematic diagram of the three-dimensional structure of the second driving member of the locking mechanism.

[0041] The above drawings include the following reference numerals:

[0042] 10. Mold; 11. First mold; 12. Second mold; 13. Third mold; 20. First locking assembly; 21. Base; 211. Locking portion; 212. Top surface; 213. Slide groove; 214. Contact surface; 22. Locking piece; 30. Second locking assembly; 31. Elastic piece; 32. Locking block; 321. Long hole; 322. Accommodating slot; 323. Limiting section; 324. Inclined section; 325. Setting cavity; 33. Shell; 331. Mounting hole; 40. Third locking assembly; 41. First driving member; 411. Adjusting section; 411a. Bottom surface; 411b. Inclined surface; 42. Second driving member; 421. Protrusion. DETAILED DESCRIPTION

[0043] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] like Figure 1 and Figure 2 As shown, in the technical solution of Example 1, a mold locking mechanism is provided. The locking mechanism is used to lock a mold 10, which includes a stacked first mold 11, a second mold 12, and a third mold 13. The locking mechanism includes a first locking assembly 20, a second locking assembly, and a third locking assembly. The first locking assembly 20 can be fixedly connected to the first mold 11; the second locking assembly 30 can be connected to the second mold 12; and the third locking assembly 40 can be fixedly connected to the third mold 13. When the locking mechanism is locked, the third locking assembly 40 drives the second locking assembly 30 to lock with the first locking assembly 20, so that the first, second, 30, and third locking assemblies 40 are in a locked state. When the locking mechanism is unlocked, the third locking assembly 40 drives the second locking assembly 30 to disengage from the first locking assembly 20, so that the first, second, 30, and third locking assemblies 40 are in an unlocked state.

[0045] During specific use, the order of opening and closing the first mold 11, the second mold 12, and the third mold 13 must be maintained to ensure that there is no collision between the product and the mold, or between the molds, resulting in mold collision. This embodiment provides a locking mechanism, wherein a first locking assembly 20 can be fixedly connected to the first mold 11; a second locking assembly 30 can be connected to the second mold 12; and a third locking assembly 40 can be fixedly connected to the third mold 13. Through the cooperation between the first locking assembly 20, the second locking assembly 30, and the third locking assembly 40, the order of opening and closing the first mold 11, the second mold 12, and the third mold 13 is strictly controlled to ensure that there is no collision between adjacent molds, thereby preventing mold failure.

[0046] It should be noted that an installation cavity for the second locking component 30 is provided in the second mold 12. The above-mentioned installation cavity is provided on the side wall of the second mold 12, and the side wall has an opening. The top wall of the installation cavity, that is, the side of the second mold 12 facing the third mold 13, is provided with an opening. The setting of the opening is conducive to the cooperation between the third locking component 40 and the second locking component 30.

[0047] like Figures 3 to 5 As shown, in the technical solution of embodiment 1, the second locking assembly 30 includes an elastic member 31 and a locking block 32. The elastic member 31 is arranged between the second mold 12 and the locking block 32 to apply a force to the locking block 32 away from the second mold 12. When the locking mechanism changes from the unlocked state to the locked state, the third locking assembly 40 drives the locking block 32 to move in the first direction Y, and the elastic member 31 drives the locking block 32 to move in the second direction X to engage with the first locking assembly 20. The locking process is divided into two parts. The third mold 13 and the second mold 12 are sequentially closed. In the first locking process, the third locking assembly 40 cooperates with the second locking assembly 30 to restrict the positional relationship between the second mold 12 and the third mold 13. The first locking assembly 20 abuts against the locking block 32 in the second locking assembly 30 to limit its displacement in the second direction X. When the second mold 12 and the first mold 11 are successfully closed, the first locking assembly 20 no longer restricts the locking block 32 in the second locking assembly 30 in the second direction X. The locking block 32 is pushed in the second direction X by the force of the elastic member 31, forming a lock with the first locking assembly 20. The elastic member 31 is made of a metal spring, which has a relatively long service life during the use of the mold 10.

[0048] like Figure 6 and Figure 7As shown, in the technical solution of embodiment 1, the second locking assembly 30 also includes a limit pin, and the locking block 32 has a long hole 321 extending along the second direction, and the limit pin is at least partially located in the long hole 321. The function of the limit pin is to limit the displacement range of the locking block 32 by cooperating with the long hole 321 of the locking block 32. Limiting the displacement range of the locking block 32 can firstly prevent the locking block 32 from directly sliding out of the second mold 12 when it completely loses the restriction of the first locking assembly 20, resulting in the need for multiple assembly of the locking mechanism. Secondly, limiting the displacement range of the locking block 32 can also prevent the locking block from excessively compressing the elastic member 31, resulting in failure of the elastic member 31, and the locking block 32 from getting stuck relative to the second mold 12, which ultimately leads to failure of the mold 10.

[0049] like Figure 6 and Figure 7 As shown, in the technical solution of Example 1, the second locking assembly 30 further includes a housing 33, which is located between the second mold 12 and the first locking assembly 20. The locking block 32 is at least partially located within the housing 33. The housing 33 is provided with a mounting hole 331 for a limit pin. The mounting hole 331 is a through hole, and the limit pin passes through the mounting hole and is inserted into the elongated hole 321. The housing 33 is fixedly mounted within the second mold 12 by fasteners. The side wall of the housing 33 is provided with a through hole for mounting the elastic member 31. The top of the housing 33 is provided with a mounting hole 331 for a limit pin. The mounting hole 331 is a countersunk hole. The limit pin can be fixedly mounted within the countersunk hole and partially penetrates the mounting hole into the housing 33, and then enters the elongated hole 321 of the locking block 32 to control the locking block 32.

[0050] like Figures 5 to 7 As shown, in the technical solution of Example 1, a receiving slot 322 is provided at the end of the locking block 32 near the second mold 12, and a frustum is provided at the end of the locking block 32 away from the second mold 12. The frustum includes a limiting section 323 and an inclined section 324. When locked, a portion of the third locking component 40 is inserted into the receiving slot 322, and the first locking component 20 engages with the limiting section 323. When unlocked, the third locking component 40 is withdrawn from the receiving slot 322, and the third locking component 40 drives the locking block 32 in the second direction via the inclined section 324. On the side of the locking block 32 near the second mold 12, the receiving slot 322 divides the locking block 32 into three sections. The receiving slot 322 is located in the middle section of the locking block 32. Cavities 325 for the elastic member 31 are provided on both sides of the receiving slot to allow the locking block 32 to cooperate with the two elastic members 31. The limiting section 323 includes a first surface and a second surface that are perpendicular to each other. The first surface cooperates with the top gap of the cavity of the shell 33. When locked, the second surface cooperates with the first locking component 20. The inclined section 324 includes a third surface. The third surface is set at an obtuse angle to the second surface. When unlocked, the third surface cooperates with the first locking component 20.

[0051] It should be noted that there can be multiple stop pins, each disposed on either side of the locking block 32, to provide a balancing effect. Since the elastic member 31 is a compression spring and is a consumable part, providing multiple sets can effectively prevent the compression spring from completely failing and prevent the locking block 32 from becoming completely stuck during use. The elongated hole 321 is a through hole, and a groove is provided on the inner surface of the housing 33 corresponding to the mounting hole 331 to accommodate the portion of the stop pin that passes through the elongated hole. The cooperation between the mounting hole 331 and the groove further ensures the reliability of the stop pin. Specifically, in the technical solution of this embodiment, the housing 33 is installed into the mounting cavity, secured by fasteners, and the elastic member 31 is then installed into the mounting cavity 325 of the elastic member 31 in the locking block 32. The end of the locking block 32 equipped with the elastic member 31 is first installed into the housing. The locking block 32 is fully pushed into its unlocked position, and the stop pin is inserted through the mounting hole 331 into the elongated hole 321, completing the installation of the second locking assembly 30. The limiting section 323 is provided with an arc chamfer, which facilitates the locking block 32 to separate from the locking portion 211 when the locking state is released.

[0052] like Figures 2 to 5 As shown, in the technical solution of Example 1, the third locking assembly 40 includes a first driving member 41 and a second driving member 42, which are fixedly connected. When locking, the first driving member 41 is inserted into the receiving slot 322 to limit the movement of the locking block 32 in the direction opposite to the second direction. When unlocking, the first driving member 41 is removed from the receiving slot 322, and the second driving member 42 drives the locking block 32 in the direction opposite to the second direction. The first driving member 41 is partially inserted into the receiving slot 322, which can limit the locking block 32 and ensure that the locking block 32 and the first locking assembly 20 are locked during the locking process.

[0053] like Figure 5 As shown, in the technical solution of embodiment 1, the first driving member 41 includes an adjusting section 411, which is arranged on the side of the first driving member 41 facing the second locking assembly 30. The adjusting section 411 is a frustum. When the locking mechanism changes from the unlocked state to the locked state, the projection of the frustum surface of the adjusting section 411 located on the locking block 32 along the first direction at least partially overlaps with the side of the locking block 32 facing the first driving member 41; the second driving member 42 is provided with a protrusion 421 on the side facing the second locking assembly 30. The protrusion 421 is arranged on the side of the second driving member 42 away from the third locking assembly 40. When the locking mechanism changes from the locked state to the unlocked state, when the first driving member 41 is away from the second locking assembly 30, the protrusion 421 drives the locking block 32 to move in the opposite direction of the second direction. Specifically, the adjustment section 411 includes a bottom surface 411a and a slope 411b. When in the locked state, the vertical section at one end of the adjustment section 411 faces the locking block 32, and the slope forms an obtuse angle with the above-mentioned vertical section and the bottom surface 411a of the adjustment section 411, with a specific angle of 135°.

[0054] It should be noted that during the second locking process, the elastic member 31 pushes the locking block 32 to slide in the second direction X. At this time, the bottom surface 411a of the first driving member 41 separates from the locking block 32, and the inclined surface 411b contacts the locking block 32 and applies a force. Under the action of the inclined surface 411b, the downward force of the first driving member 41 is decomposed into a downward force and a force along the second direction X. At this time, the locking block 32 is pushed by the elastic member 31 and the first driving member 41, and accelerates its movement toward the first locking assembly 20. When the first driving member 41 is completely lowered, the inclined surface 411b completely enters the receiving slot 322, and the adjustment section 411 forms abutment against the locking block 32. At this time, the first locking assembly 20, the second locking assembly 30, and the third locking assembly 40 are in a locked state. When the locking is released, the protrusion 421 contacts the limiting section 323, and a clearance fit is formed between the protrusion 421 and the housing 33 or between the protrusion 421 and the second mold.

[0055] like Figures 3 to 5 As shown, in the technical solution of Example 1, the unlocking process is divided into two steps. The first step is when the first driving member 41 is withdrawn from the receiving slot 322. During this process, the first locking assembly 20 and the second locking assembly 30 remain locked. The second step begins when the first driving member 41 is completely withdrawn from the receiving slot 322. In the second step, the second driving member 42 drives the locking block 32 to slide in the opposite direction of the second direction X, thereby releasing the locked state of the first locking assembly 20 and the second locking assembly 30. Specifically, the second driving member 42 includes a protrusion 421, which is disposed at the end of the second driving member 42 along the first direction Y. The protrusion 421 is disposed in a direction facing the locking block 32. The protrusion 421 protrudes to the size that matches the size of the locking block 32 with the first locking assembly 20. It should be noted that, in the technical solution of this embodiment, the length of the second driving member 42 along the first direction Y is greater than the length of the first driving member 41 along the first direction Y, and the distance between the protrusion 421 and the bottom surface 411a along the first direction Y is greater than or equal to the length of the locking block along the first direction Y. Such a setting can ensure that the protrusion contacts the locking block 32 only when the first driving member 41 is completely withdrawn from the accommodating slot 322, so that the locking mechanism will not be locked during use, thereby avoiding failure of the locking mechanism.

[0056] It should be noted that in the third locking assembly 40, the relative positions of the first driving member 41 and the second driving member 42 are fixed. The fixing method can be achieved by directly fixing the first driving member 41 and the second driving member 42 to the third mold 13, or by fixing the first driving member 41 on the second driving member 42.

[0057] like Figures 2 to 5 as well as Figure 9As shown, in the technical solution of embodiment 1, the first locking assembly 20 includes a base body 21, which is fixedly arranged and provided with a locking portion 211. When locked, the locking portion 211 engages with the limiting section 323. The base body 21 is fixedly arranged relative to the first mold 11 and is fixedly connected to the outside of the first mold 11 by a pin. The base body 21 includes a locking portion 211, which can cooperate with the limiting section 323 of the locking block 32. The limiting section 323 includes two mutually perpendicular surfaces, and the two surfaces are respectively in contact with the two mutually perpendicular surfaces of the locking portion 211 to form a limit. When locked, under the restriction of the first driving member 41, the locking block 32 is fixed between the first driving member 41 and the locking portion 211. At this time, the second mold 12 is fixed to the first mold 11 when locked.

[0058] like Figures 2 to 4 And pictures Figures 8 and 9 As shown, in the technical solution of embodiment 1, the locking portion 211 includes a locking member 22, which is fixedly arranged. The locking member 22 is provided with a slot that engages with the limiting section 323, and the locking member 22 is made of an alloy material. The slot cooperates with the limiting section 323 to limit the displacement of the limiting section 323 along the second direction X and the opposite direction of the first direction Y, thereby limiting the movement of the second mold 12 along the opposite direction of the first direction Y, that is, to prevent the second mold 12 from being driven by the third mold 13 and colliding with the product when the mold is opened. Due to the friction between the limiting section 323 and the locking portion 211 during the cooperation process, the locking portion 211 is easily damaged, resulting in insufficient locking, and ultimately causing shaking between the first mold 11 and the second mold 12, which ultimately leads to damage to the mold precision and failure. The purpose of setting the locking piece 22 is to replace the locking part 211 and cooperate with the limiting section 323 to perform locking. It can be replaced according to its wear. At the same time, the locking piece 22 is made of alloy material to enhance the hardness of the matching surface with the limiting section 323, which can effectively extend the service life of the first locking component 20.

[0059] It should be noted that in the technical solution of Example 1, the base 21 is fixed to the first mold 11 via a threaded connection. A contact surface 214 is provided on the side of the base 21 facing the mold 10. A gap is provided between the contact surface 214 and the second locking assembly 30 to ensure that the locking block does not disengage during locking. The base 21 also includes a top surface 212, which is arranged at a right angle to the contact surface 214. During the first process of closing the second mold 12, the top surface 212 contacts the inclined section 324. The force applied by the second mold 12 during closing is converted into a thrust on the locking block 32, which in this process pushes the locking block in the opposite direction of the second direction X. This configuration is intended to push the locking block 32 in the opposite direction of the second direction X, increase the contact between the bottom surface 411a of the first driving member 41 and the locking block 32, and achieve the effect of the first driving member 41 abutting the third mold 13 and the second mold 12, thereby preventing the third mold 13 and the second mold 12 from prematurely closing during the first process of closing the mold, causing the second mold 12 to collide with the inclined section.

[0060] like Figures 3 to 9 As shown, in the technical solution of Example 1, the first driving member 41 is fixed by pins to the side of the third mold 13 facing the second mold 12; the second driving member 42 is fixed by pins to the side of the third mold 13. The second driving member 42 is also provided with a positioning boss, which is arranged between the two sets of pins. The boss cooperates with the third mold 13 to ensure the installation accuracy of the second driving member 42. A slide groove 213 is provided in the middle of the base 21, through which the second driving member 42 can pass. The slide groove 213 further restricts the sliding of the second driving member 42 to only the first direction Y during the first mold opening process, thereby limiting the displacement direction of the first mold 11, ensuring that the first mold 11 and the second mold 12 can only move relative to each other in one direction, and preventing relative displacement between the molds.

[0061] like Figures 10 to 13 As shown, in the technical solution of Example 2, the first driving member 41 can also be fixedly mounted on the second driving member 42. Specifically, a boss is provided on the main body of the first driving member 41, a groove is provided on the second driving member 42 to correspond to the boss, a through hole is provided at the bottom of the groove, and a threaded hole is provided on the boss. After the first driving member 41 is positioned in the first direction, the boss of the first driving member 41 is inserted into the groove of the second driving member 42, and then fastened with bolts. The advantage of this arrangement is that the structure is compact and easy to assemble.

[0062] The present application also provides a mold, comprising at least one locking mechanism, wherein the locking mechanism can ensure that the mold does not collide with the product during the mold opening process, and the mold does not tilt and collide with the product during the mold closing process.

[0063] The present application also provides a method for using a locking mechanism of a mold. The locking mechanism of the mold is the above-mentioned locking mechanism. The method for using the locking mechanism of the mold comprises the following steps:

[0064] When locking, S100 the second mold 12 cooperates with the first mold 11; S200 the third locking component 40 drives the second locking component 30 to cooperate with the first locking component 20; S300 the third mold 13 cooperates with the second mold 12; when unlocking, S400 the third mold 13 is released from the second mold 12; S500 the third locking component 40 drives the second locking component 30 to disengage from the first locking component 20 and release; S600 the second mold 12 is released from the first mold 11.

[0065] Specifically, in the technical solution of the embodiment of the present application, the method of using the locking mechanism corresponds to the production process of the mold 10. Before closing the mold, a tilting ejector must be fixedly installed on the first mold 11, and then the second mold 12 and the third mold 13 are closed in sequence. During the closing process of the second mold 12, the first driving member 41 contacts and abuts the locking block 32, and the hydraulic press pushes the third mold 13 via the first driving member 41, pushing the second mold 12 toward the first mold 11. During this process, the third mold 13 is stationary relative to the second mold 12. When the second mold 12 and the first mold 11 are completely closed, the locking block 32 slides in the second direction X under the action of the elastic member 31. At this time, the locking block 32 releases the support on the first driving member 41, and the first driving member 41 is displaced along the first direction Y. The inclined surface 411b contacts the top of the accommodating slot 322, further pushing the locking block 32 in the second direction. When the inclined surface 411b completely enters the accommodating slot 322, the limiting section 323 forms a lock with the locking portion 211. At this time, the second locking assembly 30 is locked with the first locking assembly 20, and the third mold 13 moves relative to the second mold 12 to complete the closing of the mold.

[0066] After the mold is closed, injection molding is carried out. When the product processing is completed, the first mold is removed in the opposite direction of the first direction Y. At this time, since the first driving member 41 still limits the locking block 32, that is, the locking block 32 is still in a locked state, the second mold 12 and the first mold 11 are in a closed mold state. At this time, the third mold 13 moves relative to the second mold 12, and the restriction on the product inside the second mold 12 is released. When the first driving member 41 is completely disengaged from the receiving slot 322, the protrusion 421 of the second driving member 42 contacts the inclined section 324 of the locking block 32, and the second driving member 42 moves relative to the locking block 32 in the opposite direction of the first direction Y. At this time, the protrusion 421 exerts a force on the inclined section 324 of the locking block 32 in the opposite direction of the second direction X, pushing the locking block 32 into the housing 33. At this time, the limit section 323 and the locking portion 211 are unlocked. When the locking block 32 is fully pushed into the housing 33, the first locking assembly 20 and the second locking assembly 30 are separated, and the second mold 12 is separated from the first mold 11 under the force of the third mold 13, completing the mold opening. It should be noted that during the mold closing process, the pressure device applies low pressure. If the elastic member 31 fails, the low pressure will not damage the third locking assembly 40 and the second locking assembly 30, thereby protecting the mold 10.

[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0068] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A locking mechanism for a mold, the locking mechanism being used for locking a mold (10), the mold (10) comprising a first mold (11), a second mold (12) and a third mold (13) stacked together, characterized in that: include: a first locking assembly (20), wherein the first locking assembly (20) can be fixedly connected to the first mold (11); a second locking assembly (30), the second locking assembly (30) being connectable to the second mold (12); a third locking assembly (40), wherein the third locking assembly (40) can be fixedly connected to the third mold (13); When locked, the third locking assembly (40) drives the second locking assembly (30) to lock with the first locking assembly (20), so that the first locking assembly (20), the second locking assembly (30) and the third locking assembly (40) are in a locked state; when unlocked, the third locking assembly (40) drives the second locking assembly (30) to disengage from the first locking assembly (20), so that the first locking assembly (20), the second locking assembly (30) and the third locking assembly (40) are in an unlocked state; The second locking assembly (30) comprises an elastic member (31) and a locking block (32), wherein the elastic member (31) is arranged between the second mold (12) and the locking block (32) to apply a force to the locking block (32) away from the second mold (12). When the locking mechanism changes from the unlocked state to the locked state, the third locking assembly (40) drives the locking block (32) to move in the first direction, and the elastic member (31) drives the locking block (32) to move in the second direction to engage with the first locking assembly (20).

2. The locking mechanism of the mold according to claim 1, characterized in that: The second locking assembly (30) further includes a limiting pin, the locking block (32) has a long hole (321) extending along the second direction, and the limiting pin is at least partially located in the long hole (321).

3. The locking mechanism of the mold according to claim 2, characterized in that: The second locking assembly (30) further comprises a shell (33), the shell (33) being located between the second mold (12) and the first locking assembly (20), the locking block (32) being at least partially located within the shell (33), and the shell (33) being provided with a mounting hole (331) for the limit pin.

4. The locking mechanism of the mold according to claim 1, characterized in that: An accommodating slot (322) is provided at one end of the locking block (32) close to the second mold (12), and a cone is provided at one end of the locking block (32) away from the second mold (12), and the cone includes a limiting section (323) and an inclined section (324). When locked, part of the third locking component (40) is inserted into the accommodating slot (322), and the first locking component (20) is engaged with the limiting section (323). When unlocked, the third locking component (40) is pulled out of the accommodating slot (322), and the third locking component (40) drives the locking block (32) to move toward the second direction through the inclined section (324).

5. The locking mechanism of the mold according to claim 4, characterized in that: The third locking assembly (40) includes a first driving member (41) and a second driving member (42), and the first driving member (41) and the second driving member (42) are both fixedly connected to the third mold (13); when locked, the first driving member (41) is inserted into the accommodating slot (322) to limit the locking block (32) from moving in the opposite direction of the second direction; when unlocked, the first driving member (41) exits the accommodating slot (322), and the second driving member (42) drives the locking block (32) to move in the opposite direction of the second direction.

6. The locking mechanism of the mold according to claim 5, characterized in that: The first driving member (41) includes an adjusting section (411), the adjusting section (411) being arranged on a side of the first driving member (41) facing the second locking assembly (30), the adjusting section (411) being a frustum, and in an unlocked state, a projection of a table surface of the adjusting section (411) located on the locking block (32) along the first direction at least partially overlaps with a side of the locking block (32) facing the first driving member (41); A protrusion (421) is provided on a side of the second driving member (42) facing the second locking assembly (30), and the protrusion (421) is arranged on a side of the second driving member (42) away from the third locking assembly (40). When unlocking, when the first driving member (41) is away from the second locking assembly (30), the protrusion (421) drives the locking block (32) to move in a direction opposite to the second direction.

7. The locking mechanism of the mold according to claim 4, characterized in that: The first locking assembly (20) comprises a seat body (21), the seat body (21) is fixedly arranged, and the seat body (21) is provided with a locking portion (211). When locked, the locking portion (211) is engaged with the limiting section (323).

8. The locking mechanism of the mold according to claim 7, characterized in that: The first locking assembly (20) further comprises a locking member (22), wherein the locking member (22) is fixedly arranged and provided with a slot that engages with the limiting section (323).

9. A mold, characterized in that: The mold includes at least one locking mechanism, and the locking mechanism is the locking mechanism of the mold according to any one of claims 1 to 8.

10. A method for using a locking mechanism of a mold, characterized in that: The locking mechanism of the mold is the locking mechanism of the mold according to any one of claims 1 to 8, and the method for using the locking mechanism of the mold comprises the following steps: When locked, S100 The second mold (12) cooperates with the first mold (11); S200 The third locking assembly (40) drives the second locking assembly (30) to cooperate with the first locking assembly (20); S300 The third mold (13) cooperates with the second mold (12); When unlocking, S400 The third mold (13) and the second mold (12) are released from engagement; S500 The third locking assembly (40) drives the second locking assembly (30) to disengage from the first locking assembly (20) and release; S600 The second mold (12) is released from the first mold (11).

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