Injection mold

Abstract

According to the injection mold, a second mold plate is movably arranged on a base, an injection molding cavity is defined by the second mold plate, and the injection molding cavity is used for molding an injection molding part; the supporting plate is arranged on the base, an insert is arranged on the supporting plate, and the second mold plate can move so that the insert can be embedded into or separated from the injection molding cavity; the ejector pin plate is movably arranged on the base, an ejector pin is arranged on the ejector pin plate and penetrates through the injection molding cavity, a transmission assembly is arranged on the ejector pin plate, the ejector pin plate is in transmission connection with the second mold plate through the transmission assembly, and the transmission assembly has a first state and a second state; the ejector plate can drive the second template to move in the direction away from the base, and when the transmission assembly is in the second state, transmission of the ejector plate and the second template is disconnected. According to the injection mold, the insert can be separated from the injection molding part firstly, then the injection molding part is ejected out of the injection molding cavity through the ejector pin, and the yield of the injection molding part is increased.

Description

Technical Field

[0001] The present application relates to the technical field of injection molds, and in particular to an injection mold. Background Art

[0002] Thin-walled injection molded parts is a relative concept. Currently, plastic parts are divided into three ranges according to the wall thickness: 2.0mm~3.2mm for conventional plastic parts, 1.2~2.0mm for thin-walled plastic parts, and less than 1.2mm for advanced thin-walled plastic parts. Among them, conventional plastic parts can be molded using conventional injection molding methods and ordinary plastics, but thin-walled plastics are different. As the wall thickness decreases, the cooling speed of the plastic melt in the mold cavity accelerates and it will solidify in a very short time. Therefore, the molding process of thin-walled plastic parts is extremely complicated and difficult to mold.

[0003] When injecting deep-cavity injection molded parts, the rib thickness is extremely thin and the depth is large. According to the ejection mechanism of the existing injection mold, after the mold is opened, the injection molded part is directly ejected using the ejection mechanism. Due to the large clamping force between the deep cavity feature and the insert, direct ejection can easily cause product breakage, damage or deformation, thereby reducing the product yield. Utility Model Content

[0004] The present application provides an injection mold to solve the problem that a deep cavity thin-walled part is prone to breakage, damage or deformation when being directly ejected.

[0005] The injection mold according to the present application comprises:

[0006] A frame, the frame comprising a base;

[0007] A second template, the second template is movably disposed on the base, the second template defines an injection cavity, and the injection cavity is used to form an injection molded part;

[0008] A support plate, the support plate is arranged on the base, an insert is arranged on the support plate, the second template is movable so that the insert is embedded in or out of the injection cavity, and the support plate is located below the second template;

[0009] An ejector plate, wherein the ejector plate is movably disposed on the base, the ejector plate is located between the second template and the support plate or the ejector plate is located on the side of the support plate away from the second template, the ejector plate is provided with an ejector, the ejector is penetrated into the injection cavity, the ejector plate is provided with a transmission assembly, the ejector plate is transmission-connected to the second template via the transmission assembly, the transmission assembly has a first state and a second state, when the transmission assembly is in the first state, the ejector plate can drive the second template to move in a direction away from the base, and when the transmission assembly is in the second state, the transmission between the ejector plate and the second template is disconnected.

[0010] According to the injection mold of the present application, the second template, the support plate and the ejector plate are stacked, the transmission assembly includes a linkage, the linkage is rotatably connected to the side of the ejector plate, a first stop block is provided on the side of the support plate, a second stop block is provided on the side of the second template, the first stop block and the second stop block are respectively provided on both sides of the linkage, and a first stop portion and a second stop portion are respectively provided on both sides of the linkage, the first stop block is provided with a first limiting portion, and the second stop block is provided with a second limiting portion, when the transmission assembly is in the first state, the first stop portion abuts against the first limiting portion, and the second stop portion abuts against the second limiting portion, and when the transmission assembly is in the second state, the first stop portion is disengaged from the first limiting portion, and the second stop portion is disengaged from the second limiting portion.

[0011] Optionally, the ejector plate has a first position, a second position and a third position, the second position is between the first position and the third position, the ejector plate moves between the first position and the third position, when the ejector plate moves between the first position and the second position, the first stop portion abuts against the first limiting portion and slides relatively, the second stop portion abuts against the second limiting portion, when the ejector plate moves between the second position and the third position, the first stop portion disengages from the first limiting portion so that the linkage rotates so that the second stop portion disengages from the second limiting portion.

[0012] Optionally, the first limiting portion is configured as a first guide surface, the first stop portion includes a second guide surface, the first guide surface and the second guide surface can be fitted together, the second limiting portion is configured as a first guide bevel, the second stop portion includes a second guide bevel, and the first guide bevel and the second guide bevel can be fitted together.

[0013] Optionally, at least one elastic member is sandwiched between the ejector plate and the support plate.

[0014] Optionally, the elastic member is configured as a spring, a guide column is provided on the ejector plate, a first edge portion is provided on the guide column, the spring is sleeved on the guide column, a first guide groove is provided on the support plate, a second guide groove is provided on the second template, the guide column is passed through the first guide groove and the second guide groove, a first stop portion is provided in the second guide groove, and when the ejector plate is in the first position, the first edge portion abuts against the first stop portion.

[0015] Optionally, a guide assembly is provided on the second template, and the guide assembly is slidably connected to the support plate.

[0016] Optionally, a slide groove is provided on the support plate, a second stop portion is provided in the slide groove, the guide assembly includes a screw member, the screw member includes a head, a screw rod portion and a threaded portion connected in sequence, the threaded portion is threadedly connected to the second template, the screw rod portion and the head are inserted into the slide groove, and when the ejector plate is in the second position, the head abuts against the second stop portion.

[0017] Optionally, the guide assembly also includes a sleeve, which is sleeved on the screw portion, and the sleeve includes a second edge portion, the second edge portion abuts against the head portion, the diameter of the second edge portion is greater than the diameter of the head portion, and when the ejector plate is in the second position, the second edge portion abuts against the second stop portion.

[0018] According to the injection mold of the present application, the first template, the second template, the support plate and the ejector plate are arranged in sequence from top to bottom, a support block is provided on the base, the support plate is connected to the support block through a first support column, and the second template is sleeved on the first support column.

[0019] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0020] The injection mold provided by the embodiment of the present application can, when injecting a plastic part, link the ejector plate with the second template through the transmission assembly. The transmission assembly is first placed in a first state, and the movement of the ejector plate drives the second template to move in a direction away from the base. The insert is arranged on the support plate, and the support plate remains stationary, so that the injection molded part moves with the second template to allow the insert to be ejected from the deep cavity of the injection molded part. After the insert is ejected from the injection molded part, the transmission assembly changes from the first state to the second state. When the ejector part moves, the second template remains stationary, and the ejector assembly continues to move in a direction away from the base. At this time, the ejector ejects the injection molded part from the second template, thereby realizing a demolding process in which the insert is demolded first and then the injection molded part is ejected from the second template. While reducing the product defective rate, the overall structure has simple movement, low failure rate, and convenient disassembly and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0024] Figure 1 A three-dimensional diagram of an injection mold provided in an embodiment of the present application;

[0025] Figure 2 A partial structural stereogram of an injection mold provided in an embodiment of the present application;

[0026] Figure 3 A top view of an injection mold provided in an embodiment of the present application;

[0027] Figure 4 for Figure 3 Cross-sectional view at AA in the middle;

[0028] Figure 5 for Figure 3 Cross-section at the middle BB;

[0029] Figure 6 for Figure 3 Cross-sectional view at CC.

[0030] Description of reference numerals:

[0031] Frame 10, base 11, support block 12, first template 20, second template 30, injection cavity 31, second stopper 32, second limiting portion 321, first guide inclined surface 3211, second guide groove 33, first stop portion 331, support plate 40, first stopper 42, first limiting portion 421, first guide surface 4211, slide groove 43, second stop portion 431, insert 44, ejector plate 50, ejector 51, transmission assembly 60, linkage member 61, first stop portion 611, second guide surface 6111, second stop portion 612, second guide inclined surface 6121, elastic member 70, spring 71, guide column 72, first edge portion 721, guide assembly 80, screw member 81, head 811, screw portion 812, threaded portion 813, sleeve 82, second edge portion 821, injection molded part 2. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0033] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0034] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0035] like Figure 1 , Figure 3 as well as Figure 6 As shown, the injection mold according to the embodiment of the present application includes: a frame 10, a second template 30, a support plate 40 and an ejector plate 50.

[0036] Specifically, the frame 10 includes a base 11; a first template 20 is movably disposed on the base 11; a second template 30 is movably disposed on the base 11, and the second template 30 defines an injection cavity 31, and the injection cavity 31 is used to mold the injection molded part 2; a support plate 40 is disposed on the base 11, and an insert 44 is disposed on the support plate 40, and the second template 30 is movable so that the insert 44 is embedded in or out of the injection cavity 31; an ejector plate 50 is movably disposed on the base 11, and the ejector plate 50 is located between the second template 30 and the support plate 40 or at the ejector plate 50. On the side of the support plate 40 away from the second template 30, an ejector plate 50 is provided with an ejector 51, and the ejector 51 is penetrated into the injection cavity 31. A transmission assembly 60 is provided on the ejector plate 50, and the ejector plate 50 is transmission-connected with the second template 30 via the transmission assembly 60. The transmission assembly 60 has a first state and a second state. When the transmission assembly 60 is in the first state, the ejector plate 50 can drive the second template 30 to move in a direction away from the base 11. When the transmission assembly 60 is in the second state, the transmission between the ejector plate 50 and the second template 30 is disconnected.

[0037] Specifically, when the plastic part is injected, the first template 20 moves to a position overlapping with the second template 30 so that the injection port is connected to the injection cavity 31, and plastic is injected into the injection cavity 31 through the injection port. During injection molding, the insert 44 is embedded in the injection cavity 31, and the first template 20, the second template 30 and the insert 44 jointly mold the injection molded part 2. After the injection molded part 2 is molded, the first template 20 is moved away from the second template 30 to avoid the injection cavity 31. The driving component can drive the ejector plate 50 to move, and the ejector plate 50 can be linked with the second template 30 through the transmission component 60. The transmission component 60 is first placed in the first state, and the ejector plate 50 moves to drive the second template 30 to move away from the base 11. The insert 44 is arranged on the support plate 40, and the support plate 40 remains stationary, so that the injection molded part 2 moves with the second template 30 to make the insert 44 escape from the deep cavity of the injection molded part 2. After the insert 44 escapes from the injection molded part 2, the transmission assembly 60 changes from the first state to the second state. When the ejector pin 51 moves, the second template 30 remains stationary, and the ejector pin 51 assembly continues to move in the direction away from the base 11. At this time, the ejector pin 51 ejects the injection molded part 2 from the second template 30, thereby realizing a demoulding process of first demoulding the insert 44 and then ejecting the injection molded part 2 from the second template 30. While reducing the product defect rate, the overall structure has simple movement, low failure rate and convenient disassembly and repair.

[0038] According to the injection mold of the embodiment of the present application, the driving assembly is used to drive the ejector plate 50 to move, and the two states (the first state and the second state) of the transmission assembly 60 are used to realize the demolding process of first demolding the insert 44 and then ejecting the injection molded part 2 from the second template 30. While reducing the product defective rate, the overall structure has simple movement, low failure rate, and convenient disassembly and repair.

[0039] In some embodiments, the injection mold also includes a first template 20 and a driving assembly. The first template 20 is provided with an injection port. The first template 20 is located above the second template 30. When the second template 30 and the first template 20 are stacked, the injection port is connected to the injection cavity 31. The driving assembly is arranged on the frame 10, and the driving assembly is connected to the ejector plate 50 to drive the ejector plate 50 to move toward or away from the base 11.

[0040] like Figure 1 and Figure 2As shown, according to the injection mold of the embodiment of the present application, the second template 30, the support plate 40 and the ejector plate 50 are stacked, the transmission assembly 60 includes a linkage 61, the linkage 61 is rotatably connected to the side of the ejector plate 50, a first stopper 42 is provided on the side of the support plate 40, a second stopper 32 is provided on the side of the second template 30, the first stopper 42 and the second stopper 32 are respectively provided on both sides of the linkage 61, and the two sides of the linkage 61 are respectively provided with a first stopper 61. 11 and the second stop portion 612, the first stop block 42 is provided with a first limiting portion 421, and the second stop block 32 is provided with a second limiting portion 321. When the transmission assembly 60 is in the first state, the first stop portion 611 abuts against the first limiting portion 421, and the second stop portion 612 abuts against the second limiting portion 321. When the transmission assembly 60 is in the second state, the first stop portion 611 is disengaged from the first limiting portion 421, and the second stop portion 612 is disengaged from the second limiting portion 321.

[0041] In detail, when the transmission assembly 60 is in the first state, the first stop portion 611 abuts against the first limit portion 421. Since the first stop block 42 and the second stop block 32 are respectively arranged on both sides of the linkage member 61, the second stop portion 612 is limited in position and abuts against the second limit portion 321. At this time, the movement of the ejector plate 50 drives the linkage member 61 to move and then drives the second template 30 to move. When the transmission assembly 60 is in the second state, the first stop portion 611 is disengaged from the first limit portion 421, and the linkage member 61 rotates to disengage the second stop portion 612 from the second limit portion 321. At this time, when the ejector plate 50 continues to move in the direction away from the base 11, it will not drive the second template 30 to move together. In this way, the structural setting of the transmission assembly 60 can be simplified, thereby simplifying the transmission, reducing the transmission error, ensuring the transmission stability, and facilitating the operation.

[0042] In a specific embodiment, the transmission assembly 60 includes two groups, and the two groups of transmission assemblies 60 are respectively disposed at two opposite ends of the ejector plate 50 .

[0043] In a specific embodiment, the transmission assembly 60 includes four groups, and the four groups of transmission assemblies 60 are respectively arranged at the four end surfaces of the ejector plate 50 .

[0044] like Figure 1 and Figure 2As shown, in some embodiments, the ejector plate 50 has a first position, a second position and a third position, the second position is between the first position and the third position, the ejector plate 50 moves between the first position and the third position, when the ejector plate 50 moves between the first position and the second position, the first stop portion 611 abuts against the first limiting portion 421 and slides relatively, the second stop portion 612 abuts against the second limiting portion 321, when the ejector plate 50 moves between the second position and the third position, the first stop portion 611 disengages from the first limiting portion 421 to cause the linkage 61 to rotate to cause the second stop portion 612 to disengage from the second limiting portion 321.

[0045] Specifically, the ejector plate 50 moves from the first position to the second position in sequence, and then moves from the second position to the third position. In the process of the ejector plate 50 moving from the first position to the second position, the first stop portion 611 abuts against the first limiting portion 421 and slides relatively, and the second stop portion 612 abuts against the second limiting portion 321. At this time, the movement of the ejector plate 50 drives the second template 30 to move in the direction away from the base 11, so that the second template 30 gradually moves away from the support plate 40, thereby causing the insert 44 to escape from the injection molded part 2. When the ejector plate 50 is in the second position, the first stop portion 611 is disengaged from the first limiting portion 421, and the linkage member 61 loses the force on one side and rotates and deviates in the direction away from the second stop block 32, thereby causing the second stop portion 612 to be disengaged from the second limiting portion 321. At this time, when the ejector plate 50 continues to move from the second position to the third position, the second template 30 remains stationary, and the ejector pin 51 on the ejector plate 50 gradually ejects the injection molded part 2 from the injection cavity 31.

[0046] It can be understood that after ejecting the injection molded part 2 from the injection cavity 31, the ejector plate 50 moves from the third position to the second position and then to the first position in sequence. When moving from the third position to the second position, since the linkage member 61 is still in contact with the second template 30, it has a supporting effect on the second template 30, and the second template 30 remains stationary until it is in the second position, the second stop portion 612 abuts against the second limit portion 321, and the first stop portion 611 abuts against the first limit portion 421. In the process of moving from the second position to the first position, the first stop portion 611 abuts against the first limit portion 421 and slides relatively.

[0047] like Figure 1 As shown, in some embodiments, the first limiting portion 421 is configured as a first guide surface 4211, the first stop portion 611 includes a second guide surface 6111, the first guide surface 4211 and the second guide surface 6111 can be fitted together, the second limiting portion 321 is configured as a first guide inclined surface 3211, the second stop portion 612 includes a second guide surface inclined surface 6121, and the first guide surface 3211 and the second guide surface inclined surface 6121 can be fitted together.

[0048] Specifically, the first guide surface 4211 and the second guide surface 6111 fit together when the first limit portion 421 and the first stop portion 611 abut against each other, so that they can play a guiding role when they abut and slide relatively, thereby improving the stability of the force of the ejector plate 50 lifting the second template 30 and preventing jamming. The first guide inclined surface 3211 and the second guide surface inclined surface 6121 fit together when the second limit portion 321 and the second stop portion 612 abut against each other, so that they can play a guiding role during the process of the second limit portion 321 and the second stop portion 612 abutting or disengaging, so that the second limit portion 321 and the second stop portion 612 can transition from abutment to disengagement, or from disengagement to abutment, and the state is variable.

[0049] like Figure 1 , Figure 4 and Figure 5 As shown, in some embodiments, at least one elastic member 70 is sandwiched between the ejector plate 50 and the support plate 40 .

[0050] Specifically, when the ejector plate 50 is between the support plate 40 and the base 11, the elastic member 70 is gradually compressed during the movement of the ejector plate 50 from the first position to the third position. After the injection molded part 2 is ejected, the restoring force of the elastic member 70 can help the ejector plate 50 to be reset from the third position to the first position.

[0051] When the support plate 40 is between the ejector plate 50 and the base 11, the ejector plate 50 gradually stretches the elastic member 70 during the movement from the first position to the third position. After the injection molded part 2 is ejected, the restoring force of the elastic member 70 can help the ejector plate 50 to return from the third position to the first position.

[0052] In a specific embodiment, the elastic members 70 include four elastic members 70 , and the four elastic members 70 are evenly arranged.

[0053] like Figure 1 , Figure 4 and Figure 5 As shown, in some embodiments, the elastic member 70 is configured as a spring 71, the ejector plate 50 is provided with a guide column 72, the guide column 72 is provided with a first edge portion 721, the spring 71 is sleeved on the guide column 72, the support plate 40 is provided with a first guide groove, the second template 30 is provided with a second guide groove 33, the guide column 72 is inserted into the first guide groove and the second guide groove 33, the second guide groove 33 is provided with a first stop portion 331, when the ejector plate 50 is in the first position, the first edge portion 721 abuts against the first stop portion 331. When the ejector plate 50 is in the first position, the first edge portion 721 abuts against the first stop portion 611, thereby limiting the guide column 72 and the ejector plate 50, preventing the guide column 72 from falling out of the second template 30, and also utilizing the guide column 72 to assemble the ejector plate 50.

[0054] During the process of the ejector plate 50 moving from the first position to the third position and from the third position to the first position, the guide column 72 moves in the first guide groove and the second guide groove, so that the first guide groove and the second guide groove guide the guide column 72, which can guide the ejector plate 50 and prevent the ejector plate 50 from deflecting or getting stuck during the movement.

[0055] In a specific embodiment, the first template 20 , the second template 30 , the support plate 40 and the ejector plate 50 are arranged in sequence, and the support plate 40 is disposed between the second template 30 and the ejector plate 50 .

[0056] like Figure 3 and Figure 4 As shown, in some embodiments, a guide assembly 80 is provided on the second template 30, and the guide assembly 80 is slidably connected to the support plate 40. In this way, when the ejector plate 50 moves between the first position and the second position (moving from the first position to the second position and from the second position to the first position), the guide assembly 80 can be used to guide the second template 30 when it moves relative to the support plate 40, so as to prevent the second template 30 from being offset or stuck.

[0057] For example, the guide assembly 80 includes but is not limited to a gear rack, a lead screw, a sliding module, etc.

[0058] like Figure 3 and Figure 4 As shown, in some embodiments, a slide groove 43 is provided on the support plate 40, and a second stop portion 431 is provided in the slide groove 43. The guide assembly 80 includes a screw member 81, and the screw member 81 includes a head 811, a screw rod portion 812 and a threaded portion 813 connected in sequence. The threaded portion 813 is threadedly connected to the second template 30, and the screw rod portion 812 and the head 811 are inserted into the slide groove 43. When the ejector plate 50 is in the second position, the head 811 abuts against the second stop portion 431.

[0059] To elaborate, the two ends of the screw portion 812 are respectively connected to the head 811 and the threaded portion 813, and the threaded portion 813 is threadedly connected to the second template 30. When the second template 30 moves relative to the support plate 40, the threaded portion 813 will be driven to move, thereby causing the screw portion 812 and the head 811 to move in the slide groove 43. When the ejector plate 50 moves from the first position to the second position, the head 811 abuts against the second stop portion 612. Under the limiting effect of the abutment between the head 811 and the second stop portion 612, the second template 30 can no longer move in the direction away from the support plate 40, thereby making it easier for the second limiting portion 321 and the second stop portion 612 to transition from abutment to disengagement.

[0060] like Figure 3 and Figure 4As shown, in some embodiments, the guide assembly 80 also includes a sleeve 82, which is sleeved on the screw portion 812, and the sleeve 82 includes a second edge portion 821, and the second edge portion 821 abuts against the head portion 811, and the diameter of the second edge portion 821 is greater than the diameter of the head portion 811. When the ejector plate 50 is in the second position, the second edge portion 821 abuts against the second stop portion 431.

[0061] In some embodiments, when the ejector plate 50 is in the second position, the guide assembly 80 uses the second edge portion 821 to increase the contact area with the second stop portion 431, thereby increasing the limiting force of the mechanism and extending the service life of the mechanism. It can be used with existing standard parts such as screws and the like in combination with the sleeve 82, without the need to customize non-standard parts, thereby reducing the production cost of the injection mold.

[0062] According to the injection mold of the embodiment of the present application, the first template 20, the second template 30, the support plate 40 and the ejector plate 50 are arranged in sequence from top to bottom, a support block 12 is provided on the base 11, and the support plate 40 is connected to the support block 12 through a first support column.

[0063] like Figure 1 As shown, according to the injection mold of the embodiment of the present application, the second template 30, the support plate 40 and the ejector plate 50 are arranged in sequence from top to bottom. During the injection molding process, the support plate 40 can be used to support the second template 30, so that the molding quality is improved. The third position is higher than the first position. A support block 12 is provided on the base 11. The support plate 40 is connected to the support block 12 through a first support column. The second template 30 is sleeved on the first support column, thereby realizing the assembly of the structure. The structure is simple and convenient for disassembly and assembly.

[0064] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0065] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0066] The above are only specific embodiments of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. An injection mold, characterized in that: include: A frame, the frame comprising a base; A second template, the second template is movably disposed on the base, the second template defines an injection cavity, and the injection cavity is used to form an injection molded part; A support plate, the support plate is arranged on the base, an insert is arranged on the support plate, the second template is movable so that the insert is embedded in or out of the injection cavity, and the support plate is located below the second template; An ejector plate, wherein the ejector plate is movably disposed on the base, the ejector plate is located between the second template and the support plate or the ejector plate is located on the side of the support plate away from the second template, the ejector plate is provided with an ejector, the ejector is penetrated into the injection cavity, the ejector plate is provided with a transmission assembly, the ejector plate is transmission-connected to the second template via the transmission assembly, the transmission assembly has a first state and a second state, when the transmission assembly is in the first state, the ejector plate can drive the second template to move in a direction away from the base, and when the transmission assembly is in the second state, the transmission between the ejector plate and the second template is disconnected.

2. The injection mold according to claim 1, characterized in that: The second template, the support plate and the ejector plate are stacked, the transmission assembly includes a linkage, the linkage is rotatably connected to the side of the ejector plate, a first stop block is provided on the side of the support plate, a second stop block is provided on the side of the second template, the first stop block and the second stop block are respectively arranged on both sides of the linkage, and a first stop portion and a second stop portion are respectively provided on both sides of the linkage, the first stop block is provided with a first limiting portion, and the second stop block is provided with a second limiting portion, when the transmission assembly is in the first state, the first stop portion abuts against the first limiting portion, and the second stop portion abuts against the second limiting portion, when the transmission assembly is in the second state, the first stop portion is disengaged from the first limiting portion, and the second stop portion is disengaged from the second limiting portion.

3. The injection mold according to claim 2, characterized in that: The ejector plate has a first position, a second position and a third position, the second position is between the first position and the third position, the ejector plate moves between the first position and the third position, when the ejector plate moves between the first position and the second position, the first stop portion abuts against the first limiting portion and slides relatively, the second stop portion abuts against the second limiting portion, when the ejector plate moves between the second position and the third position, the first stop portion disengages from the first limiting portion so that the linkage member rotates so that the second stop portion disengages from the second limiting portion.

4. The injection mold according to claim 3, characterized in that: The first limiting portion is configured as a first guide surface, the first stop portion includes a second guide surface, the first guide surface and the second guide surface can be fitted together, the second limiting portion is configured as a first guide slope, the second stop portion includes a second guide slope, the first guide slope and the second guide slope can be fitted together.

5. The injection mold according to claim 3 or 4, characterized in that: At least one elastic member is sandwiched between the ejector plate and the support plate.

6. The injection mold according to claim 5, characterized in that: The elastic member is configured as a spring, a guide column is provided on the ejector plate, a first edge portion is provided on the guide column, the spring is sleeved on the guide column, a first guide groove is provided on the support plate, a second guide groove is provided on the second template, the guide column is passed through the first guide groove and the second guide groove, a first stop portion is provided in the second guide groove, and when the ejector plate is in the first position, the first edge portion abuts against the first stop portion.

7. The injection mold according to claim 3 or 4, characterized in that: The second template is provided with a guide assembly, and the guide assembly is slidably connected to the support plate.

8. The injection mold according to claim 7, characterized in that: The support plate is provided with a slide groove, and a second stop portion is provided in the slide groove. The guide assembly includes a screw member, and the screw member includes a head, a screw rod portion and a threaded portion connected in sequence. The threaded portion is threadedly connected to the second template. The screw rod portion and the head are inserted into the slide groove. When the ejector plate is in the second position, the head abuts against the second stop portion.

9. The injection mold according to claim 8, characterized in that: The guide assembly also includes a sleeve, which is sleeved on the screw portion, and the sleeve includes a second edge portion, which abuts against the head portion, and the diameter of the second edge portion is greater than the diameter of the head portion. When the ejector plate is in the second position, the second edge portion abuts against the second stop portion.

10. The injection mold according to any one of claims 1 to 4, characterized in that: The second template, the support plate and the ejector plate are arranged in sequence from top to bottom, a support block is provided on the base, the support plate is connected to the support block via a first support column, and the second template is sleeved on the first support column.

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