Forming die

Abstract

A forming die can improve positioning precision and forming precision and comprises an upper die mechanism and a lower die mechanism, and the lower die mechanism comprises a lower die assembly opposite to the upper die mechanism; the insert core assembly is movably embedded in the lower die assembly, and the insert core assembly and the upper die mechanism position the metal piece in the first direction during die assembly and participate in surrounding to form a forming cavity; the abutting assembly comprises a pushing piece, a first elastic piece and an abutting piece, the pushing piece abuts against the lower die assembly and is in sliding connection with the insert assembly in the second direction, the abutting piece and the pushing piece abut against the two ends of the first elastic piece, and the abutting piece and the insert assembly are in sliding connection in the second direction; the pressing assembly is located between the two sliding assemblies in the third direction, each sliding assembly comprises a pushing part, a second elastic part and a sliding part, the pushing parts abut against the lower die assembly and are in sliding connection with the insert core assembly in the third direction, and the sliding parts and the pushing parts abut against the two ends of the second elastic parts; the sliding piece is slidably connected with the insert core assembly in the third direction.

Description

Technical Field

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

[0002] In the manufacturing industry, the composite molding technology of metal parts and plastic parts is widely used in the production of products with complex structures and functions. The traditional molding process usually places metal parts in a mold first, and then closes the mold and injects plastic materials to achieve the combination of metal and plastic.

[0003] When injecting and molding products, after placing metal parts at a preset position of the insert part of the lower mold, the molding die is then closed, and the backhoe part of the upper mold pushes the slider of the lower mold to move close to the metal parts, so that the slider positions the workpiece onto the insert part of the lower mold. However, the positioning accuracy of metal parts is limited by unilateral slider positioning, which easily causes the metal parts to deviate from the preset position during the molding process, resulting in low positioning accuracy. Moreover, the limitation of this positioning method is that it cannot ensure the precise fit between metal parts and plastic parts, with low molding accuracy, thereby affecting the overall performance of the products. Summary of the Utility Model

[0004] In view of the above situation, it is necessary to provide a molding die to improve the positioning accuracy and molding accuracy.

[0005] An embodiment of the present application provides a molding die, including a mating upper mold mechanism and lower mold mechanism. The lower mold mechanism includes:

[0006] A lower mold assembly, disposed opposite to the upper mold mechanism in a first direction;

[0007] An insert assembly, movably embedded in the lower mold assembly, for positioning a metal part in the first direction with the upper mold mechanism during mold closing and participating in enclosing to form a molding cavity, so that the plastic part injection-molded in the molding cavity is combined with the metal part;

[0008] A pressing assembly, including a pushing member, a first elastic member and a pressing member. The pushing member abuts against the lower mold assembly and is slidably connected to the insert assembly in a second direction. The pressing member and the pushing member respectively abut against two ends of the first elastic member. The pressing member is slidably connected to the insert assembly in the second direction. The pushing member compresses the first elastic member to the pressing member under the abutment of the lower mold assembly during mold closing, so that the pressing member positions the metal part in the second direction to the insert assembly; and

[0009] Two groups of sliding components, the pressing component is located between the two groups of sliding components in the third direction, each group of sliding components includes a pushing member, a second elastic member and a sliding member, the pushing member abuts against the lower mold component and is slidably connected with the entry component along the third direction, the sliding member and the pushing member are respectively abutted against the two ends of the second elastic member, the sliding member is slidably connected with the entry component along the third direction, and the pushing member compresses the second elastic member to the sliding member under the abutment of the lower mold component when the mold is closed, so that the sliding member positions the metal part to the entry component along the third direction.

[0010] When the molding mold is closed, the insert assembly drives the pushing member and the resisting member to move closer to the lower mold assembly. Under the resistance of the lower mold assembly, the pushing member and the resisting member compress the first elastic member and the second elastic member to the resisting member and the sliding member respectively, so that the first elastic member and the second elastic member respectively provide preset elastic forces to the resisting member and the sliding member, so as to drive the resisting member and the sliding member to clamp and position the metal member to the insert assembly along the second direction and the third direction respectively. At the same time, the upper mold mechanism clamps and positions the metal member to the insert assembly along the first direction, thereby achieving simultaneous positioning of the metal member in the second direction, the third direction and the first direction, avoiding the position of the metal member from being offset, so that the injection-molded plastic member can be accurately combined with the metal member, thereby improving the positioning accuracy and molding accuracy. When the molding mold is opened, the insert assembly drives the pushing member and the resisting member to move away from the lower mold assembly, and the compressed first elastic member and the second elastic member respectively drive the pushing member and the resisting member to move away from the pressing member and the sliding member, and provide initial elastic force to the pressing member and the sliding member, so that the pressing member and the sliding member respectively abut and limit the metal member combined with the plastic member to the insert assembly along the second direction and the third direction, thereby avoiding the metal member from being offset during the mold opening process and causing friction damage between the metal member, the plastic member and other components, improving the quality and molding stability of the metal member and the plastic member combined therewith, and at the same time preventing the resisting member and the sliding member from abutting against the peripheral side of the metal member under the drive of the initial elastic force, thereby avoiding the metal member from being damaged by excessive pressure, and facilitating the combined metal member and plastic member to separate from the insert assembly.

[0011] In some embodiments, the lower mold assembly includes:

[0012] A lower mold plate is arranged opposite to the upper mold mechanism and is provided with a placement groove, wherein the placement groove is used to place the sub-assembly;

[0013] A first guide member is disposed in the receiving groove and is in sliding contact with a side of the pushing member facing away from the first elastic member, for guiding the pushing member; and

[0014] Two second guide members are arranged in the accommodating groove and are respectively in sliding contact with one side of the corresponding push member away from the second elastic member, so as to guide the corresponding push member.

[0015] In some embodiments, the insert subassembly includes:

[0016] An insert member, movably embedded in the placement groove, a storage groove is provided on a side of the insert member facing the upper die mechanism, and the pushing member, the pressing member, the pushing and pressing member, and the sliding member are all stored in the storage groove and are all slidably connected to the insert member;

[0017] A bearing member, spaced from the pressing member along the second direction, the bearing member is located between the two sliding members in the third direction, and the bearing member is used to bear the metal member and cooperate with the upper die mechanism to position the metal member along the first direction when the die is closed;

[0018] A first limiting member, detachably connected to the insert member, the first limiting member respectively abuts against the pushing member and the pressing member to limit the sliding directions of the pushing member and the pressing member; and

[0019] Two second limiting members, both detachably connected to the insert member, each second limiting member respectively abuts against the corresponding pushing and pressing member and the corresponding sliding member to limit the sliding directions of the corresponding pushing and pressing member and the corresponding sliding member.

[0020] In some embodiments, the lower die mechanism further includes:

[0021] An ejection assembly, movably penetrating through the lower template along the first direction and extending to the placement groove, the ejection assembly is connected to a side of the insert member away from the upper die mechanism, and the ejection assembly ejects the insert member away from the lower template when the die is opened, so that the compressed first elastic member and the compressed second elastic member are elongated, and drives the pushing member and the pushing and pressing member to move away from the pressing member and the sliding member respectively.

[0022] In some embodiments, the pressing member is provided with a receiving groove, and the receiving groove receives and limits the first elastic member.

[0023] In some embodiments, the pressing member is further provided with a limiting groove, and the limiting groove is opened on a side of the pressing member facing the upper die mechanism and communicates with the receiving groove;

[0024] The pushing member includes a pushing body and a limiting body, the pushing body is in sliding abutment with the first guiding member, the pushing body abuts against the first elastic member, one end of the limiting body is movably inserted into the limiting groove and connected to the pushing body, and the other end of the limiting body is used to abut against the bottom of the limiting groove to limit the movement distance of the pushing body when the die is opened.

[0025] In some embodiments, a guide groove is provided on the side of the pushing body facing the first guide member, and the guide groove is arranged on the pushing body at an angle relative to the mold opening direction. The guide groove is used to accommodate part of the first guide member so that the first guide member guides the movement direction of the pushing body.

[0026] In some embodiments, the push member is provided with a supporting groove, and the supporting groove is opened on a side of the push member facing the upper mold mechanism;

[0027] The sliding member includes a sliding body and a supporting body, and the sliding body and the supporting member are in contact with the two ends of the second elastic member along the third direction. One end of the supporting body is connected to the sliding body, and the other end of the supporting body is movably inserted into the supporting groove and is used to abut against the bottom of the supporting groove when the mold is opened to limit the movement distance of the supporting member.

[0028] In some embodiments, the sliding body is further provided with a mounting groove, which is provided in the middle of the sliding body and communicates with the supporting groove, and the mounting groove receives and limits the second elastic member.

[0029] In some embodiments, the lower mold assembly is provided with an injection runner, which is in communication with the molding cavity and is used to deliver molten plastic into the molding cavity when the mold is closed. The lower mold mechanism further includes an ejector assembly, which includes:

[0030] an ejector plate movably disposed on a side of the lower mold assembly facing away from the upper mold mechanism;

[0031] a first ejector, movably provided along the first direction through the lower mold assembly and the insert assembly and connected to the ejector plate, the first ejector being used to eject the molded plastic part when the mold is opened, driven by the ejector plate;

[0032] The second ejector is spaced apart from the first ejector and is movably arranged in the lower mold assembly along the first direction. The second ejector is connected to the ejector plate. The second ejector is used to eject the plastic solidified in the injection runner when the mold is opened under the drive of the ejector plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the three-dimensional structure of the molding mold and the corresponding metal parts, plastic parts, and plastic body provided in the embodiment of the present application.

[0034] Figure 2 for Figure 1 The figure shows a schematic diagram of the three-dimensional structure of the lower mold mechanism and the matching metal parts, plastic parts and plastic body in the mold closing state.

[0035] Figure 3 forFigure 2 Schematic three-dimensional structure diagram of the lower die mechanism in the mold opening state, and the adapted metal parts, plastic parts, and plastic bodies.

[0036] Figure 4 For Figure 2 Exploded view of a part of the lower die mechanism shown.

[0037] Figure 5 For Figure 2 Cross-sectional view of the lower die mechanism shown along the V-V direction.

[0038] Figure 6 For Figure 2 Cross-sectional view of the lower die mechanism shown along the VI-VI direction.

[0039] Description of main component symbols

[0040] Molding die 100

[0041] Upper die mechanism 101

[0042] Lower die mechanism 102

[0043] Lower die assembly 10

[0044] Lower template 11

[0045] Placement groove 111

[0046] First guide member 12

[0047] Second guide member 13

[0048] Injection runner 14

[0049] Insert assembly 20

[0050] Insert 21

[0051] Receiving groove 211

[0052] Carrier 22

[0053] First limiting member 23

[0054] Second limiting member 24

[0055] Pressing assembly 30

[0056] Pushing member 31

[0057] Pushing body 311

[0058] Guide groove 3111

[0059] Limiting body 312

[0060] First elastic member 32

[0061] Pressing member 33

[0062] Receiving groove 331

[0063] Limit groove 332

[0064] Sliding assembly 40

[0065] Pushing member 41

[0066] Supporting groove 411

[0067] Second elastic member 42

[0068] Slider 43

[0069] Sliding body 431

[0070] Mounting groove 4311

[0071] Supporting body 432

[0072] Ejecting assembly 50

[0073] Ejecting plate 51

[0074] Ejecting member 52

[0075] Ejector pin assembly 60

[0076] Ejector pin plate 61

[0077] First ejector pin 62

[0078] Second ejector pin 63

[0079] Metal part 200

[0080] Plastic part 300

[0081] Plastic body 400 Specific embodiments

[0082] The following describes in detail the embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0083] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, it should be noted that the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0084] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to specific circumstances.

[0085] Some embodiments of the present application will be described in detail below with reference to the drawings.

[0086] Please refer to Figure 1 , the embodiment of the present application provides a molding die 100. The molding die 100 includes a mating upper die mechanism 101 and a lower die mechanism 102. The lower die mechanism 102 includes a lower die assembly 10, an insert assembly 20, a pressing assembly 30, and two sets of sliding assemblies 40.

[0087] For the convenience of understanding and illustration, a three-dimensional coordinate system is established in some of the drawings. The first direction is the Z-axis direction, that is, the mold opening direction of the upper die mechanism 101 pointing to the lower die assembly 10. The second direction is the X-axis direction, that is, the direction in which the following pushing member 31 points to the pressing member 33. The third direction is the Y-axis direction, that is, the direction in which one set of sliding assemblies 40 points to the other set of sliding assemblies 40. The X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other in pairs.

[0088] Please refer to Figure 2 , Figure 3 and Figure 4, the lower die assembly 10 and the upper die mechanism 101 are arranged oppositely along the Z-axis direction. The insert sub-assembly 20 is movably embedded in the lower die assembly 10. The insert sub-assembly 20 is used to position the metal part 200 along the Z-axis direction with the upper die mechanism 101 during mold closing and participate in enclosing to form a molding cavity (not shown in the figure), so that the plastic part 300 injection-molded in the molding cavity is combined with the metal part 200. The pressing assembly 30 includes a pushing member 31, a first elastic member 32 and a pressing member 33. The pushing member 31 abuts against the lower die assembly 10 and is slidably connected to the insert sub-assembly 20 along the X-axis direction. The pressing member 33 and the pushing member 31 respectively abut against both ends of the first elastic member 32. The pressing member 33 is slidably connected to the insert sub-assembly 20 along the X-axis direction. The pushing member 31 compresses the first elastic member 32 to the pressing member 33 under the abutment of the lower die assembly 10 during mold closing, so that the pressing member 33 positions the metal part 200 along the X-axis direction to the insert sub-assembly 20. Two sets of sliding assemblies 40 are arranged at intervals along the Y-axis direction on the insert sub-assembly 20. The pressing assembly 30 is located between the two sets of sliding assemblies 40 in the Y-axis direction. Each set of sliding assemblies 40 includes a pushing member 41, a second elastic member 42 and a sliding member 43. The pushing member 41 abuts against the lower die assembly 10 and is slidably connected to the insert sub-assembly 20 along the Y-axis direction. The sliding member 43 and the pushing member 41 respectively abut against both ends of the second elastic member 42. The sliding member 43 is slidably connected to the insert sub-assembly 20 along the Y-axis direction. The pushing member 41 compresses the second elastic member 42 to the sliding member 43 under the abutment of the lower die assembly 10 during mold closing, so that the sliding member 43 positions the metal part 200 along the Y-axis direction to the insert sub-assembly 20. Exemplarily, the first elastic member 32 and the second elastic member 42 can be springs.

[0089] When the molding die 100 is closed, the insert assembly 20 drives the pushing member 31 and the pushing element 41 to move close to the lower die assembly 10. Under the pushing of the lower die assembly 10, the pushing member 31 and the pushing element 41 compress the first elastic member 32 and the second elastic member 42 respectively to the pressing member 33 and the sliding member 43, so that the first elastic member 32 and the second elastic member 42 respectively provide a preset elastic force to the pressing member 33 and the sliding member 43, so as to drive the pressing member 33 and the sliding member 43 to clamp and position the metal part 200 along the X-axis direction and the Y-axis direction respectively to the insert assembly 20. At the same time, the upper die mechanism 101 clamps and positions the metal part 200 along the Z-axis direction to the insert assembly 20, thereby realizing the simultaneous positioning of the metal part 200 in the X-axis direction, the Y-axis direction and the Z-axis direction, avoiding the position deviation of the metal part 200, so that the injection-molded plastic part 300 can be accurately combined with the metal part 200, improving the positioning accuracy and the molding accuracy. When the molding die 100 is opened, the insert assembly 20 drives the pushing member 31 and the pushing element 41 to move away from the lower die assembly 10. The compressed first elastic member 32 and the second elastic member 42 respectively drive the pushing member 31 and the pushing element 41 to move away from the pressing member 33 and the sliding member 43 respectively, and provide an initial elastic force to the pressing member 33 and the sliding member 43, so that the pressing member 33 and the sliding member 43 respectively abut and limit the metal part 200 combined with the plastic part 300 along the X-axis direction and the Y-axis direction to the insert assembly 20, avoiding the deviation of the metal part 200 during the mold opening process, resulting in friction damage between the metal part 200, the plastic part 300 and other components, improving the quality and molding stability of the metal part 200 and the plastic part 300 combined therewith, and at the same time preventing the pressing member 33 and the sliding member 43 from abutting against the periphery of the metal part 200 under the drive of the initial elastic force, avoiding damage to the metal part 200 due to excessive pressing force, and facilitating the separation of the combined metal part 200 and plastic part 300 from the insert assembly 20.

[0090] It should be noted that the preset elastic force refers to the acting force respectively applied by the first elastic member 32 and the second elastic member 42 to the pressing member 33 and the sliding member 43 during mold closing, which can make the pressing member 33 and the sliding member 43 position the metal part 200 to the preset position of the insert assembly 20, and it is difficult for the metal part 200 to move under the action of external force to avoid the offset movement of the metal part 200. The initial elastic force refers to the acting force respectively applied by the first elastic member 32 and the second elastic member 42 to the pressing member 33 and the sliding member 43 during mold opening, which can make the pressing member 33 and the sliding member 43 respectively abut against the periphery of the metal part 200, so as to limit the metal part 200 with the plastic part 300 formed, preventing the metal part 200 from deviating from the preset position after molding, resulting in a demoulding device or a demoulding mechanism. At this time, the acting force applied by the pressing member 33 and the sliding member 43 to the metal part 200 is small, which is convenient for the demoulding device or the demoulding mechanism to directly take out the combined metal part 200 and plastic part 300 from the lower die mechanism 102.

[0091] See also Figure 2 In some embodiments, the lower mold assembly 10 includes a lower mold plate 11, a first guide member 12, and two second guide members 13. The lower mold plate 11 is arranged opposite to the upper mold mechanism 101 and is provided with a seating groove 111, which is used to accommodate the subassembly 20. The first guide member 12 is disposed in the seating groove 111 and is in sliding contact with the side of the push member 31 facing away from the first elastic member 32, thereby guiding the push member 31. The two second guide members 13 are disposed in the seating groove 111 and are respectively in sliding contact with the side of the corresponding push member 41 facing away from the second elastic member 42, thereby guiding the corresponding push member 41.

[0092] Thus, the molding die 100 can be arranged rationally by accommodating the subassembly 20 in the placement groove 111. In addition, the first guide member 12 guides the pusher 31, and the second guide member 13 guides the corresponding pusher 41, which can guide the movement direction of the pusher 31 and the pusher 41, thereby improving the molding stability.

[0093] See also Figure 2 、 Figure 3 and Figure 4 In some embodiments, the insert assembly 20 includes an insert 21, a carrier 22, a first stopper 23, and two second stoppers 24. The insert 21 is movably embedded in the mounting groove 111. A receiving groove 211 is provided on the side of the insert 21 facing the upper mold mechanism 101. The pusher 31, the pressure member 33, the pusher 41, and the slide 43 are all received in the receiving groove 211 and are slidably connected to the insert 21. The carrier 22 and the pressure member 33 are spaced apart along the X-axis. The carrier 22 is located between the two slides 43 along the Y-axis. The carrier 22 is used to support the metal part 200 and cooperate with the upper mold mechanism 101 to position the metal part 200 along the Z-axis when the mold is closed. The first stopper 23 is detachably connected to the insert 21. The first stopper 23 abuts against the pusher 31 and the pressure member 33, respectively, to limit the sliding direction of the pusher 31 and the pressure member 33. The two second limiting members 24 are detachably connected to the inserting member 21 , and each second limiting member 24 abuts against the corresponding pushing member 41 and the corresponding sliding member 43 to limit the sliding direction of the corresponding pushing member 41 and the corresponding sliding member 43 .

[0094] In this way, the storage groove 211 formed in the insert part 21 stores the pushing member 31, the pressing member 33, the pushing and pressing member 41, and the sliding member 43, which is beneficial to the reasonable layout of the molding die 100. In addition, the sliding directions of the pushing member 31 and the pressing member 33 are limited by the first limiting member 23, so that the pushing member 31 and the pressing member 33 always move along the X-axis direction in the insert part 21 under the limit. The sliding directions of the corresponding pushing and pressing member 41 and the corresponding sliding member 43 are limited by the second limiting member 24, so that the pushing and pressing member 41 and the sliding member 43 always move along the Y-axis direction in the insert part 21, ensuring the operation stability of the molding die 100.

[0095] Please refer to Figure 3 and Figure 5 , in some embodiments, the lower die mechanism 102 further includes an ejection assembly 50. The ejection assembly 50 movably penetrates the lower template 11 along the first direction and extends to the placement groove 111. The ejection assembly 50 is connected to the side of the insert part 21 away from the upper die mechanism 101. When the mold is opened, the ejection assembly 50 ejects the insert part 21 to move away from the lower template 11, so that the compressed first elastic member 32 and the compressed second elastic member 42 extend, and drives the pushing member 31 and the pushing and pressing member 41 to move away from the pressing member 33 and the sliding member 43 respectively.

[0096] In this way, by connecting the ejection assembly 50 with the insert part 21, the ejection assembly 50 can stably drive the insert part 21 to move away from the lower template 11 when the mold is opened and move closer to the lower template 11 when the mold is closed, ensuring the stability of mold opening and closing.

[0097] Please refer to Figure 1 and Figure 5 , in some embodiments, the ejection assembly 50 includes an ejection plate 51 and a plurality of ejection members 52. The ejection plate 51 is movably disposed on the side of the lower template 11 facing away from the upper die mechanism 101. The plurality of ejection members 52 are spaced apart on the ejection plate 51 and all movably penetrate the lower template 11 along the Z-axis direction. The plurality of ejection members 52 are all connected to the insert part 21, and the plurality of ejection members 52 drive the insert part 21 to move simultaneously under the drive of the ejection plate 51.

[0098] In this way, by connecting all the plurality of ejection members 52 with the insert part 21, the connection area between the ejection assembly 50 and the insert part 21 can be increased, and then the ejection plate 51 drives the plurality of ejection members 52 to drive the insert part 21 to move stably, improving the operation stability of the molding die 100.

[0099] Please refer to Figure 4 , in some embodiments, the pressing member 33 is provided with a receiving groove 331. The receiving groove 331 receives and limits the first elastic member 32, so that the first elastic member 32 is always compressed or extended along the X-axis direction, thereby ensuring that the first elastic member 32 stably provides elastic force along the X-axis direction.

[0100] Please refer to Figure 4 and Figure 5 In some embodiments, the pressing member 33 is further provided with a limiting groove 332, and the limiting groove 332 is opened on the side of the pressing member 33 facing the upper die mechanism 101 and communicates with the accommodating groove 331. The pushing member 31 includes a pushing body 311 and a limiting body 312. The pushing body 311 is in sliding contact with the first guiding member 12, the pushing body 311 is in contact with the first elastic member 32, one end of the limiting body 312 is movably inserted into the limiting groove 332 and connected to the pushing body 311, and the other end of the limiting body 312 is used to abut against the bottom of the limiting groove 332 when the mold is opened to limit the moving distance of the pushing body 311.

[0101] In this way, when the mold is opened, the compressed first elastic member 32 extends and drives the pushing body 311 to move away from the pressing member 33 in the insert member 21. After the pushing body 311 moves a certain distance, one end of the limiting body 312 adjacent to the second elastic member 42 abuts against the bottom of the limiting groove 332, thereby limiting the moving distance of the pushing body 311 and preventing the moving distance of the pushing body 311 from being too large and interfering with other components.

[0102] Please refer to Figure 4 In some embodiments, a guiding groove 3111 is provided on the side of the pushing body 311 facing the first guiding member 12. The guiding groove 3111 is inclined relative to the mold opening direction on the pushing body 311, and the guiding groove 3111 is used to receive a part of the first guiding member 12 so that the first guiding member 12 guides the moving direction of the pushing body 311.

[0103] In this way, by receiving a part of the first guiding member 12 through the guiding groove 3111, the first guiding member 12 can guide the moving direction of the pushing body 311, so that the pushing body 311 stably compresses the first elastic member 32 under the guidance of the first guiding member 12 during the process of moving into the lower template 11, and stably moves away from the bearing member 22 under the guidance of the first guiding member 12 during the process of moving out of the lower template 11, which is beneficial to maintaining the moving stability of the pushing body 311.

[0104] It can be understood that the structure of the second guiding member 13 is substantially the same as that of the first guiding member 12, and the cooperation mode between the second guiding member 13 and the pushing member 41 is also the same as the cooperation mode between the first guiding member 12 and the sliding member 43. The second guiding member 13 guides the moving direction of the corresponding pushing member 41, and the specific structure of the second guiding member 13 and the pushing member 41 will not be elaborated here.

[0105] Please refer to Figure 2 , Figure 4 and Figure 6, in some embodiments, the pushing member 41 is provided with a holding groove 411, and the holding groove 411 is formed on the side of the pushing member 41 facing the upper die mechanism 101. The sliding member 43 includes a sliding body 431 and a holding body 432. The sliding body 431 and the pushing member 41 are in contact with both ends of the second elastic member 42 in the Y-axis direction. One end of the holding body 432 is connected to the sliding body 431, and the other end of the holding body 432 is movably inserted into the holding groove 411 and is used to abut against the bottom of the holding groove 411 during mold opening to limit the movement distance of the pushing member 41.

[0106] In this way, during mold opening, the compressed second elastic member 42 elongates and drives the pushing member 41 to move away from the sliding body 431 within the insert 21. After the pushing member 41 moves a certain distance, one end of the holding body 432 adjacent to the second elastic member 42 abuts against the bottom of the holding groove 411, thereby limiting the movement distance of the pushing member 41 and preventing the pushing member 41 from having too large a movement distance and interfering with other components.

[0107] Please refer to Figure 4 , in some embodiments, the sliding body 431 is further provided with a mounting groove 4311. The mounting groove 4311 is provided in the middle of the sliding body 431 and communicates with the holding groove 411. The mounting groove 4311 houses and positions the second elastic member 42, so that the second elastic member 42 is always compressed or elongated in the Y-axis direction, thereby ensuring that the second elastic member 42 stably provides elastic force in the Y-axis direction.

[0108] Please continue to refer to Figure 1 and Figure 5 , in some embodiments, the lower mold assembly 10 is provided with an injection runner 14. The injection runner 14 communicates with the molding cavity and is used to convey molten plastic to the molding cavity during mold closing. The lower mold mechanism 102 further includes a ejector pin assembly 60. The ejector pin assembly 60 includes an ejector pin plate 61, a first ejector pin 62 and a second ejector pin 63. The ejector pin plate 61 is movably provided on the side of the lower mold assembly 10 facing away from the upper mold mechanism 101. The first ejector pin 62 movably penetrates the lower mold assembly 10 and the insert assembly 20 in the Z-axis direction and is connected to the ejector pin plate 61. The first ejector pin 62 is used to eject the molded plastic part 300 during mold opening under the drive of the ejector pin plate 61. The second ejector pin 63 is arranged at an interval from the first ejector pin 62 and movably penetrates the lower mold assembly 10 in the Z-axis direction, and the second ejector pin 63 is connected to the ejector pin plate 61. The second ejector pin 63 is used to eject the plastic body 400 solidified in the injection runner 14 during mold opening under the drive of the ejector pin plate 61.

[0109] In this way, the ejector plate 61 drives the first ejector pin 62 and the second ejector pin 63 to move close to the upper die mechanism 101 during mold opening, so as to eject the molded plastic part 300 in the molding cavity and the plastic body 400 cured in the injection runner 14 respectively, realizing the stable removal of the combined metal part 200 and plastic part 300 from the lower die mechanism 102, and avoiding the interference of the subsequent operation of the molding die 100 caused by the curing of the plastic body 400 in the injection runner 14.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A molding die, comprising a mating upper die mechanism and a lower die mechanism, characterized in that, The lower mold mechanism comprises: a lower mold assembly, arranged opposite to the upper mold mechanism along a first direction; an insert assembly, movably embedded in the lower mold assembly, for positioning the metal part along the first direction together with the upper mold mechanism when the mold is closed, and participating in enclosing and forming a molding cavity so that the plastic part injection-molded in the molding cavity is combined with the metal part; a pressing assembly, comprising a pushing member, a first elastic member, and a pressing member, wherein the pushing member abuts against the lower mold assembly and is slidably connected to the insert assembly along a second direction, the pressing member and the pushing member respectively abut against two ends of the first elastic member, and the pressing member is slidably connected to the insert assembly along the second direction, and the pushing member compresses the first elastic member toward the pressing member under the abutment of the lower mold assembly when the mold is closed, so that the pressing member positions the metal member toward the insert assembly along the second direction; and Two groups of sliding components, the pressing component is located between the two groups of sliding components in the third direction, each group of sliding components includes a pushing member, a second elastic member and a sliding member, the pushing member abuts against the lower mold component and is slidably connected with the entry component along the third direction, the sliding member and the pushing member are respectively abutted against the two ends of the second elastic member, the sliding member is slidably connected with the entry component along the third direction, and the pushing member compresses the second elastic member to the sliding member under the abutment of the lower mold component when the mold is closed, so that the sliding member positions the metal part to the entry component along the third direction.

2. The molding die according to claim 1, characterized in that, The lower mold assembly comprises: A lower mold plate is arranged opposite to the upper mold mechanism and is provided with a placement groove, wherein the placement groove is used to place the sub-assembly; a first guide member disposed in the receiving groove and in sliding contact with a side of the pushing member facing away from the first elastic member, for guiding the pushing member; and Two second guide members are arranged in the accommodating groove and are respectively in sliding contact with one side of the corresponding push member away from the second elastic member, so as to guide the corresponding push member.

3. The molding die according to claim 2, characterized in that, The input subassembly includes: An inserting member is movably embedded in the placement groove, and a receiving groove is provided on the side of the inserting member facing the upper mold mechanism, and the pushing member, the pressing member, the pushing member and the sliding member are all received in the receiving groove and are all slidably connected to the inserting member; a bearing member spaced apart from the pressing member along the second direction, the bearing member being located between the two sliding members in the third direction, the bearing member being used to bear the metal member and cooperate with the upper mold mechanism to position the metal member along the first direction when the mold is closed; a first limiting member detachably connected to the inserting member, the first limiting member respectively abutting against the pushing member and the pressing member to limit the sliding directions of the pushing member and the pressing member; and The two second limiting members are both detachably connected to the inserting member, and each of the second limiting members abuts against the corresponding pushing member and the corresponding sliding member to limit the sliding direction of the corresponding pushing member and the corresponding sliding member.

4. The molding die according to claim 3, wherein, The lower mold mechanism also includes: The ejecting assembly is movably inserted through the lower template along the first direction and extends to the placement groove. The ejecting assembly is connected to the side of the insert away from the upper die mechanism. When the mold is opened, the ejecting assembly pushes the insert away from the lower template, so that the compressed first elastic member and the compressed second elastic member extend, and drives the pushing member and the pushing and pressing member to move away from the pressing member and the sliding member respectively.

5. The molding die according to claim 2, wherein: The pressing member is provided with a receiving groove, and the receiving groove receives and positions the first elastic member.

6. The molding die according to claim 5, wherein: The pressing member is further provided with a limiting groove, and the limiting groove is opened on the side of the pressing member facing the upper die mechanism and communicates with the receiving groove; The pushing member includes a pushing body and a limiting body. The pushing body is in sliding contact with the first guiding member, and the pushing body is in contact with the first elastic member. One end of the limiting body is movably inserted into the limiting groove and connected to the pushing body, and the other end of the limiting body is used to abut against the bottom of the limiting groove when the mold is opened to limit the moving distance of the pushing body.

7. The molding die according to claim 6, characterized in that, The side of the pushing body facing the first guiding member is provided with a guiding groove, and the guiding groove is inclined relative to the mold opening direction on the pushing body. The guiding groove is used to receive part of the first guiding member, so that the first guiding member guides the moving direction of the pushing body.

8. The molding die according to claim 1, wherein, The pushing and pressing member is provided with a holding groove, and the holding groove is opened on the side of the pushing and pressing member facing the upper die mechanism; The sliding member includes a sliding body and a holding body. The sliding body and the pushing and pressing member are in contact with both ends of the second elastic member along the third direction. One end of the holding body is connected to the sliding body, and the other end of the holding body is movably inserted into the holding groove and is used to abut against the bottom of the holding groove when the mold is opened to limit the moving distance of the pushing and pressing member.

9. The molding die according to claim 8, characterized in that, The sliding body is further provided with a mounting groove, and the mounting groove is arranged in the middle of the sliding body and communicates with the holding groove. The mounting groove receives and positions the second elastic member.

10. The molding die according to claim 1, characterized in that, The lower die assembly is provided with an injection runner, and the injection runner communicates with the molding cavity and is used to convey molten plastic to the molding cavity when the mold is closed. The lower die mechanism further includes a thimble assembly, and the thimble assembly includes: A thimble plate, which is movably arranged on the side of the lower die assembly away from the upper die mechanism; A first thimble, which is movably inserted through the lower die assembly and the insert assembly along the first direction and is connected to the thimble plate. The first thimble is used to eject the molded plastic part when the mold is opened under the drive of the thimble plate; A second thimble, which is arranged at an interval from the first thimble and is movably inserted through the lower die assembly along the first direction, and the second thimble is connected to the thimble plate. The second thimble is used to eject the plastic body solidified in the injection runner when the mold is opened under the drive of the thimble plate.

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