Forming die

Abstract

The invention relates to the technical field of injection molding, and provides a forming mold to improve the disassembly and assembly efficiency. The lower die assembly and the upper die assembly are oppositely arranged and are in open-close fit; the first forming assembly is embedded in the side, facing the lower die assembly, of the upper die assembly and detachably connected with the upper die assembly. The second forming assembly comprises a forming part, a fixing part, a supporting part, an ejector pin part, an elastic part and a driving part, the fixing part is embedded in the lower mold assembly, the forming part is arranged on the side, facing the upper mold assembly, of the fixing part and detachably connected with the lower mold assembly, and the forming part is matched with the first forming assembly to form a forming cavity of an injection product during mold closing; the two ends of the supporting piece are connected with the fixing piece and the forming piece respectively, one end of the ejector pin piece is arranged between the fixing piece and the forming piece and arranged on the supporting piece in a sleeved mode, the other end of the ejector pin piece movably penetrates through the forming piece, and the two ends of the elastic piece elastically abut against the ejector pin piece and the forming piece respectively. The driving piece penetrates through the lower die assembly and is connected with the side, away from the forming piece, of the ejector pin piece.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of injection molding, in particular to a molding die. BACKGROUND

[0002] In the existing molding die, the molding die is usually designed to disassemble the male die core and the female die core at the opening surface, and other key components of the molding die, such as the ejector pin, are often difficult to disassemble efficiently from the inside of the molding die. Moreover, this design leads to a more complex maintenance and repair process of the molding die, and low disassembly efficiency. SUMMARY

[0003] In view of the above, it is necessary to provide a molding die to improve the disassembly efficiency.

[0004] The present application provides a molding die, comprising:

[0005] an upper die assembly;

[0006] a lower die assembly, oppositely arranged and matched with the upper die assembly;

[0007] a first molding assembly, embedded in one side of the upper die assembly facing the lower die assembly and detachably connected with the upper die assembly;

[0008] a second molding assembly, comprising a molding piece, a fixing piece, a support piece, an ejector pin, an elastic piece and a driving piece, the fixing piece is embedded in the lower die assembly, the molding piece is arranged on one side of the fixing piece facing the upper die assembly and detachably connected with the lower die assembly, the molding piece is used to form a molding cavity of an injection product in cooperation with the first molding assembly when the mold is closed, the two ends of the support piece are connected with the fixing piece and the molding piece respectively, one end of the ejector pin is arranged between the fixing piece and the molding piece and is sleeved on the support piece, the other end of the ejector pin is movably arranged in the molding piece, the two ends of the elastic piece are elastically abutted on the ejector pin and the molding piece respectively, and the driving piece is arranged in the lower die assembly and connected with one side of the ejector pin away from the molding piece.

[0009] In the above molding die, the molding piece and the fixing piece are fixedly connected through the support piece, the ejector pin sleeved on the support piece and the elastic piece elastically abutting on the ejector pin and the molding piece are limited between the molding piece and the fixing piece, so that the second molding assembly is formed as a whole structure, and the first molding assembly is also a whole structure, which is convenient for the operator to disassemble the first molding assembly and the second molding assembly at the opening surface between the upper die assembly and the lower die assembly, so as to reasonably arrange the molding die, avoid complex structure design in the molding die, and improve the disassembly efficiency.

[0010] In some embodiments, the elastic piece comprises:

[0011] a guide body, one end of the guide body being connected with the ejector pin, the other end of the guide body being movably arranged in the forming member;

[0012] an elastic body, the elastic body being sleeved on the guide body, two ends of the elastic body being elastically abutted on the ejector pin and the forming member respectively.

[0013] In some embodiments, the forming member further comprises:

[0014] a connecting body, the connecting body being embedded in the lower die assembly and detachably connected with the lower die assembly, the connecting body being abutted on the elastic member and fixedly connected with the support member;

[0015] a die core body, the die core body being arranged on the side of the connecting body away from the support member and detachably connected with the connecting body; and

[0016] a pin body, one end of the pin body being arranged in the die core body and used for participating in forming the forming cavity when the mold is closed, the other end of the pin body being abutted on the side of the die core body facing the connecting body under the pressing of the connecting body.

[0017] In some embodiments, the ejector pin comprises:

[0018] an ejector pin plate, the ejector pin plate being movably arranged between the forming member and the fixed member and sleeved on the support member, the side of the ejector pin plate facing the forming member being abutted on the elastic member, the side of the ejector pin plate away from the forming member being connected with the driving member;

[0019] a plurality of ejector pin bodies, the plurality of ejector pin bodies being arranged at intervals on the ejector pin plate and movably arranged in the forming member, the plurality of ejector pin bodies being used for pushing the product away from the forming cavity under the driving of the ejector pin plate when the mold is opened.

[0020] In some embodiments, the second forming assembly further comprises:

[0021] an abutting member, the abutting member being arranged on the side of the fixed member facing the ejector pin plate and connected with the fixed member, one end of the abutting member facing the ejector pin plate being provided with an abutting plane, the abutting plane being used for abutting on the ejector pin plate when the mold is opened.

[0022] In some embodiments, the lower die assembly is provided with a positioning groove and a receiving groove, the positioning groove being arranged on the side of the lower die assembly facing the upper die assembly, the positioning groove being used for receiving the forming member to position the forming member, the receiving groove being arranged at the groove bottom of the positioning groove and being in communication with the positioning groove, the receiving groove being used for receiving the fixed member, the ejector pin and the support member.

[0023] In some embodiments, the lower mold assembly is further provided with a position-avoiding hole, which is arranged at the bottom of the receiving groove and is matched with the driving member, and is used for receiving the driving member to avoid the position of the driving member.

[0024] In some embodiments, the lower mold assembly is further provided with a taking-and-placing groove, which is arranged at the wall of the positioning groove.

[0025] In some embodiments, the first forming assembly comprises:

[0026] a mold core member, which is embedded in the upper mold assembly and is detachably connected with the upper mold assembly;

[0027] a sprue member, which is movably arranged in the mold core member and is used for participating in the formation of the forming cavity when the mold is closed;

[0028] a pressing plate member, which is arranged at the side of the mold core member away from the forming member and is detachably connected with the mold core member, and the pressing plate member and the mold core member clamp the end of the sprue member away from the forming member; and

[0029] an injection member, which is arranged in the sprue member and the pressing plate member and is detachably connected with the pressing plate member, and is used for communicating with the forming cavity when the mold is closed to transport the molten plastic to the forming cavity.

[0030] In some embodiments, the side of the mold core member facing the pressing plate member is provided with a cooling flow channel, the cooling flow channel is arranged around the sprue member, the pressing plate member covers the cooling flow channel and is provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively communicated with two ends of the cooling flow channel. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A schematic diagram of the three-dimensional structure of the forming mold provided in the embodiments of the present application is shown.

[0032] Figure 2 A schematic diagram of the structure of the forming mold provided in the embodiments of the present application is shown. Figure 1 A schematic diagram of the cross-sectional view of the forming mold provided in the embodiments of the present application is shown.

[0033] Figure 3 A schematic diagram of the structure of the forming mold provided in the embodiments of the present application is shown. Figure 1 A schematic diagram of the structure of the forming mold provided in the embodiments of the present application is shown.

[0034] Figure 4 A schematic diagram of the structure of the forming mold provided in the embodiments of the present application is shown. Figure 1 A schematic diagram of the structure of the forming mold provided in the embodiments of the present application is shown.

[0035] Figure 5 A schematic diagram of the structure of the forming mold provided in the embodiments of the present application is shown. Figure 3 A schematic diagram of the structure of the forming mold provided in the embodiments of the present application is shown.

[0036] Explanation of main element symbols

[0037] Forming mold 100

[0038] Upper mold assembly 10

[0039] Mounting groove 11

[0040] Lower mold assembly 20

[0041] Positioning groove 21

[0042] Accommodation groove 22

[0043] Avoidance hole 23

[0044] Take-and-put groove 24

[0045] First forming assembly 30

[0046] Die core 31

[0047] Cooling runner 311

[0048] Pin member 32

[0049] Pressing plate member 33

[0050] Water inlet 331

[0051] Water outlet 332

[0052] Injection molding member 34

[0053] Second forming assembly 40

[0054] Forming member 41

[0055] Connecting body 411

[0056] Die core body 412

[0057] Pin body 413

[0058] Fixing member 42

[0059] Supporting member 43

[0060] Ejector pin member 44

[0061] Ejector pin plate 441

[0062] Ejector pin body 442

[0063] Elastic member 45

[0064] Guide body 451

[0065] Elastic body 452

[0066] Driving member 46

[0067] abutment 47

[0068] abutment plane 471 DETAILED DESCRIPTION

[0069] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below are exemplary and are for the purpose of explaining the present application only, and should not be understood as limiting the present application.

[0070] 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 purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application. In addition, the terms "first", "second" are for the purpose of description only, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, it should be noted that the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0071] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection or can communicate with each other, it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned term in the present application can be understood according to the specific circumstances.

[0072] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0073] Referring to Figure 1 and Figure 2 The embodiments of the present application provide a forming mold 100, which comprises an upper mold assembly 10, a lower mold assembly 20, a first forming assembly 30 and a second forming mold 100. The forming mold 100 is used for injection molding products, and has reasonable layout and can improve the disassembly efficiency.

[0074] Referring to Figure 1 , Figure 2 and Figure 3The upper mold assembly 10 is oppositely arranged with the lower mold assembly 20 and is opened and closed to match. The first forming assembly 30 is embedded on the side of the upper mold assembly 10 facing the lower mold assembly 20 and is detachably connected with the upper mold assembly 10. The second forming assembly 40 includes a forming piece 41, a fixing piece 42, a support piece 43, a ejector pin piece 44, a elastic piece 45 and a driving piece 46. The fixing piece 42 is embedded in the lower mold assembly 20. The forming piece 41 is arranged on the side of the fixing piece 42 facing the upper mold assembly 10 and is detachably connected with the lower mold assembly 20. The forming piece 41 is used to form a forming cavity (not shown in the figure) of the injection molding product in cooperation with the first forming assembly 30 when the mold is closed. The two ends of the support piece 43 are connected with the fixing piece 42 and the forming piece 41 respectively. One end of the ejector pin piece 44 is arranged between the fixing piece 42 and the forming piece 41 and is sleeved on the support piece 43. The other end of the ejector pin piece 44 is movably arranged in the forming piece 41. The two ends of the elastic piece 45 are elastically abutted on the ejector pin piece 44 and the forming piece 41 respectively. The driving piece 46 is arranged in the lower mold assembly 20 and is connected with the side of the ejector pin piece 44 away from the forming piece 41. Exemplarily, the driving piece 46 can be any driving body, driving part or similar driving block that drives the ejector pin piece 44 to approach the upper mold assembly 10 and compresses the elastic piece 45 when the mold is opened, for example, a gas cylinder.

[0075] In the above-mentioned forming mold 100, the forming piece 41 and the fixing piece 42 are fixedly connected through the support piece 43. The ejector pin piece 44 sleeved on the support piece 43 and the elastic piece 45 elastically abutting on the ejector pin piece 44 and the forming piece 41 are limited between the forming piece 41 and the fixing piece 42. Thus, the second forming assembly 40 is formed as a whole structure, and the first forming assembly 30 is also a whole structure. This facilitates the operator to disassemble and assemble the first forming assembly 30 and the second forming assembly 40 on the opening surface (not marked) between the upper mold assembly 10 and the lower mold assembly 20. Thus, the forming mold 100 is reasonably arranged, the complex structure design in the forming mold 100 is avoided, and the disassembly and assembly efficiency is improved.

[0076] It should be noted that in the present embodiment, the upper mold assembly 10 and the first forming assembly 30 are detachably connected by using screws, and the lower mold assembly 20 and the second forming assembly 40 are also detachably connected by using screws. In other embodiments, the upper mold assembly 10 and the first forming assembly 30, and the lower mold assembly 20 and the second forming assembly 40 can also be detachably connected by using other components, for example, screws, buckles, etc.

[0077] In the embodiment, the number of the support members 43 is multiple, the multiple support members 43 are arranged in the vertical direction of the opening direction of the upper die assembly 10 and the lower die assembly 20, and two ends of each support member 43 are connected with the fixing member 42 and the forming member 41 respectively. The multiple refers to two or more, when the number of the multiple support members 43 is three, the three support members 43 are arranged in an equilateral triangle, and when the number of the multiple support members 43 is four, the four support members 43 are arranged in a parallelogram. In this way, by arranging the number of the support members 43 to be multiple, the stability of the multiple support members 43 supporting the fixing member 42 and the forming member 41 can be improved.

[0078] Please refer to Figure 3 In some embodiments, the elastic member 45 comprises a guide body 451 and an elastic body 452. One end of the guide body 451 is connected with the ejector pin member 44, and the other end of the guide body 451 movably penetrates the forming member 41. The elastic body 452 is sleeved on the guide body 451, and two ends of the elastic body 452 are elastically abutted on the ejector pin member 44 and the forming member 41 respectively. For example, the elastic body 452 can be an elastic part, an elastic column or the like, such as a spring.

[0079] In this way, by sleeving the elastic body 452 on the guide body 451, the guide body 451 can guide the elastic body 452, so that the elastic member 45 is always compressed or elongated in the opening direction of the upper die assembly 10 and the lower die assembly 20, thereby ensuring that the elastic member 45 stably provides elastic force to drive the ejector pin member 44 to reset. In addition, by arranging one end of the guide body 451 to be connected with the ejector pin member 44 and the other end of the guide body 451 to movably penetrate the forming member 41, when the forming die 100 is opened, the ejector pin member 44 drives the guide body 451 to move away from the one end of the ejector pin member 44 in the forming member 41, avoiding the interference of the guide body 451 with the product demolding operation, and facilitating the reasonable layout of the forming die 100.

[0080] In the embodiment, the number of the elastic members 45 is multiple, and the multiple elastic members 45 are arranged in the vertical direction of the opening direction of the upper die assembly 10 and the lower die assembly 20. In this way, by arranging the multiple elastic members 45, the elastic driving force of the elastic members 45 applied to the ejector pin member 44 can be improved, so that the multiple elastic members 45 can provide a larger elastic driving force after the ejector pin member 44 completes the ejecting and demolding of the product, and the ejector pin member 44 can be quickly and stably reset to the initial position, facilitating the repeated forming operation of the forming die 100. The multiple refers to two or more, and the arrangement mode of the multiple elastic members 45 can stably drive the ejector pin member 44 to reset, and the specific arrangement mode is not described herein.

[0081] Please continue to refer to Figure 3In some embodiments, the forming member 41 further comprises a connecting body 411, a core body 412 and a pin body 413. The connecting body 411 is embedded in the lower mold assembly 20 and detachably connected with the lower mold assembly 20. The connecting body 411 abuts against the elastic member 45 and is fixedly connected with the supporting member 43. The core body 412 is arranged on the side of the connecting body 411 away from the supporting member 43 and detachably connected with the connecting body 411. One end of the pin body 413 is embedded in the core body 412 and used to participate in forming the forming cavity when the mold is closed. The other end of the pin body 413 abuts against the side of the core body 412 facing the connecting body 411 under the pressing of the connecting body 411.

[0082] In this way, by detachably connecting the connecting body 411 and the core body 412, the operator can easily assemble the pin body 413 to the connecting body 411. At the same time, the connecting body 411 presses the pin body 413 to the side of the core body 412 facing the connecting body 411, so that the pin body 413 remains in a stable installation state and avoids shaking and deviation.

[0083] Specifically, the number of pin bodies 413 is multiple. The multiple pin bodies 413 are arranged in the vertical direction of the opening direction of the upper mold assembly 10 and the lower mold assembly 20. The multiple pin bodies 413 can form the same type of product or different types of product. In this embodiment, the number of pin bodies 413 is four. The four pin bodies 413 are arranged in a square shape.

[0084] Please refer to Figure 3 In some embodiments, the ejector pin member 44 comprises an ejector pin plate 441 and multiple ejector pin bodies 442. The ejector pin plate 441 is movably arranged between the forming member 41 and the fixed member 42 and sleeved on the supporting member 43. The side of the ejector pin plate 441 facing the forming member 41 abuts against the elastic member 45. The side of the ejector pin plate 441 away from the forming member 41 is connected with the driving member 46. The multiple ejector pin bodies 442 are arranged at intervals on the ejector pin plate 441 and movably embedded in the forming member 41. The multiple ejector pin bodies 442 are used to push the product out of the forming cavity under the driving of the ejector pin plate 441 when the mold is opened.

[0085] In this way, by arranging multiple ejector pin bodies 442, the contact area between the ejector pin member 44 and the product can be increased. When the mold is opened, the ejector pin plate 441 stably drives the multiple ejector pin bodies 442 to push the product out of the forming cavity, so that the product remains stable when the mold is opened and prevents the product from expanding and colliding with other components when the mold is opened. The demolding stability and quality of the product are improved.

[0086] Please refer to Figure 3In some embodiments, the second forming assembly 40 further comprises an abutting piece 47, which is arranged on the side of the fixing piece 42 facing the ejector plate 441 and connected with the fixing piece 42. An abutting plane 471 is arranged on one end of the abutting piece 47 facing the ejector plate 441, which is used to abut against the ejector plate 441 when the mold is opened.

[0087] In this way, the ejector plate 441 is reset to the initial position under the driving of the compressed elastic body 452, and the abutting plane 471 of the abutting piece 47 abuts against the ejector plate 441, so that the ejector plate 441 remains in a horizontal state in the initial position, avoiding the deflection of the ejector plate 441 when it is reset to the initial position, which causes the deflection of the ejector pin body 442 connected with the ejector plate 441 and the expansion of the pin body 413, which is beneficial to the repeated demolding operation of the ejector piece 44. In addition, the abutting piece 47 can also separate the ejector plate 441 and the fixing piece 42, so that a large enough movement gap is formed between the ejector plate 441 and the fixing piece 42, which facilitates the operator to quickly remove the debris and dirt attached to the ejector plate 441 and the fixing piece 42 through the movement gap.

[0088] In the present embodiment, the number of abutting pieces 47 is multiple, and the multiple abutting pieces 47 are arranged in the vertical direction of the opening direction of the upper mold assembly 10 and the lower mold assembly 20. The multiple abutting pieces 47 are connected to the side of the fixing piece 42 facing the forming piece 41. When the number of the multiple abutting pieces 47 is three, the three abutting pieces 47 are arranged in an equilateral triangle. When the number of the multiple abutting pieces 47 is four, the four abutting pieces 47 are arranged in a square. In this way, it is beneficial to improve the stability of the multiple abutting pieces 47 supporting the ejector plate 441.

[0089] Please refer to Figure 4 In some embodiments, the lower mold assembly 20 is provided with a positioning groove 21 and a receiving groove 22. The positioning groove 21 is arranged on the side of the lower mold assembly 20 facing the upper mold assembly 10, and is used to receive the forming piece 41 to position the forming piece 41. The receiving groove 22 is arranged on the groove bottom of the positioning groove 21 and communicates with the positioning groove 21, and is used to receive the fixing piece 42, the ejector piece 44 and the support piece 43.

[0090] In this way, the positioning groove 21 is arranged to receive the forming piece 41, so that the positioning groove 21 positions the forming piece 41, so that each component in the second forming assembly 40 ensures the preset placement position and orientation, and ensures the normal operation of the forming mold 100. In addition, the receiving groove 22 in communication with the positioning groove 21 receives the fixing piece 42, the ejector piece 44 and the support piece 43, which can reasonably layout the second forming assembly 40 and the lower mold assembly 20, simplify the mechanical structure of the second forming assembly 40 and the lower mold assembly 20, and further improve the disassembly efficiency.

[0091] Please continue to refer to Figure 2and Figure 4 In some embodiments, the lower mold assembly 20 is further provided with a position-avoiding hole 23, which is arranged at the bottom of the receiving groove 22 and is matched with the driving piece 46. The position-avoiding hole 23 is used to receive the driving piece 46 to avoid the position of the driving piece 46.

[0092] In this way, by arranging the position-avoiding hole 23 matched with the driving piece 46 to receive the driving piece 46, the position-avoiding hole 23 avoids the position of the driving piece 46, so that the driving piece 46 is sequentially arranged in the position-avoiding hole 23 and the fixing piece 42 to be connected to the ejector plate 441, which is beneficial to the reasonable layout of the lower mold assembly 20 and the second forming assembly 40.

[0093] Please refer to Figure 4 In some embodiments, the lower mold assembly 20 is further provided with a taking and placing groove 24, which is arranged at the groove wall of the receiving groove 22.

[0094] In this way, by arranging the taking and placing groove 24 at the groove wall of the positioning groove 21, a certain operation space can be formed between the lower mold assembly 20 and the forming piece 41, so that the operator can insert the disassembling tool through the taking and placing groove 24 to quickly take out the second forming assembly 40 from the lower mold assembly 20, thereby improving the disassembling efficiency.

[0095] In the present embodiment, the connection between the taking and placing groove 24 and the positioning groove 21 is chamfered, which can avoid the position of the forming piece 41 moving into or out of the positioning groove 21, so as to prevent the forming piece 41 from colliding with the lower mold assembly 20 during the disassembling process, thereby improving the disassembling stability.

[0096] Please refer to Figure 3 In some embodiments, the first forming assembly 30 includes a core piece 31, a pin piece 32, a pressing plate piece 33, and an injection piece 34. The core piece 31 is embedded in the upper mold assembly 10 and detachably connected with the upper mold assembly 10. The pin piece 32 is movably arranged in the core piece 31 and used to participate in the formation of the forming cavity when the mold is closed. The pressing plate piece 33 is arranged on the side of the core piece 31 away from the forming piece 41 and detachably connected with the core piece 31. The pressing plate piece 33 clamps and fixes one end of the pin piece 32 away from the forming piece 41. The injection piece 34 is arranged in the pin piece 32 and the pressing plate piece 33 and detachably connected with the pressing plate piece 33. The injection piece 34 is used to communicate with the forming cavity when the mold is closed, so as to transport the molten plastic to the forming cavity.

[0097] Thus, by setting the specific structure of the first forming assembly 30, the components in the first forming assembly 30 can be connected to each other, so that the first forming assembly 30 forms an integral structure, which facilitates the operator to complete the disassembly and assembly of the first forming assembly 30 from the opening surface at one time, and further improves the disassembly and assembly of the forming mold 100. In addition, the pressing plate 33 and the mold core 31 are clamped and fixed to the end of the insert 32 away from the forming part 41, which can install the insert 32 to the preset position of the mold core 31, so that the insert 32 of the first forming assembly 30 and the insert body 413 of the second forming assembly 40 are accurately docked when the mold is closed, avoiding misalignment between the two, and further improving the forming precision.

[0098] In the present embodiment, the number of inserts 32 is multiple, and the multiple inserts 32 and the multiple insert bodies 413 are one-to-one corresponding respectively, so that the multiple inserts 32 and the multiple insert bodies 413 cooperate to form multiple products, and the multiple products can be the same type of products or different types of products. Specifically, the number of inserts 32 is four, and the four inserts 32 are arranged in a square shape.

[0099] Please refer to Figure 3 and Figure 5 In some embodiments, the mold core 31 is provided with a cooling channel 311 on the side facing the pressing plate 33, the cooling channel 311 is arranged around the insert 32, the pressing plate 33 is arranged on the cooling channel 311 and is provided with a water inlet 331 and a water outlet 332, and the water inlet 331 and the water outlet 332 are respectively communicated with two ends of the cooling channel 311. Wherein, the water inlet 331 and the water outlet 332 are communicated with an external liquid supply, and the cooling liquid provided by the external liquid supply flows back to the external liquid supply through the cooling channel 311 from the water outlet 332 through the water inlet 331.

[0100] Therefore, by arranging the cooling flow channel 311 around the insert member 32 and arranging the two ends of the cooling flow channel 311 to communicate with the water inlet 331 and the water outlet 332 respectively, the cooling liquid is circulated from the water inlet 331 to the water outlet 332 through the cooling flow channel 311, so that the external liquid supply member provides the cooling liquid to the cooling flow channel 311, thereby stably regulating the temperature of the insert body 413 and the product in the molding cavity by the cooling liquid, preventing the temperature in the first molding assembly 30, the second molding assembly 40 and the molding cavity from being too high to deform the injection molded product, thereby ensuring that the temperature of the first molding assembly 30, the second molding assembly 40 and the molding cavity is moderate during the molding process, so as to improve the molding quality of the product. In addition, by covering the cooling flow channel 311 with the pressing plate member 33 and arranging the pressing plate member 33 to be connected with the die core member 31, the die core member 31, the insert member 32 and the pressing plate member 33 can form an integrated first molding assembly 30, avoiding the use of complex cooling components between the upper die assembly 10 and the first molding assembly 30, thereby simplifying the mechanical structure of the molding mold 100, so that the molding mold 100 is reasonably arranged and is convenient for disassembly and assembly.

[0101] In some embodiments, the first molding assembly 30 further comprises two sealing members (not shown), which are respectively embedded in the water inlet 331 and the water outlet 332. Therefore, by using the above-mentioned two sealing members, the sealing performance of the connection between the external liquid supply member (not shown) and the water inlet 331 and the water outlet 332 can be maintained, so as to prevent the cooling liquid from overflowing from the water inlet 331 and the water outlet 332, which is conducive to ensuring the stable circulation of the cooling liquid and facilitating the repeated molding operation of the molding mold 100. For example, the sealing member can be a sealing ring.

[0102] Please refer to Figure 3 In some embodiments, the side of the upper die assembly 10 facing the lower die assembly 20 is provided with a mounting groove 11, which is matched with the first molding assembly 30 and used for receiving and positioning the first molding assembly 30.

[0103] Therefore, by receiving the first molding assembly 30 in the mounting groove 11, the first molding assembly 30 can be positioned, so that the first molding assembly 30 in the mounting groove 11 maintains a predetermined orientation and placement position, so that the first molding assembly 30 and the second molding assembly 40 can be accurately docked when the mold is closed, thereby enabling the molding mold 100 to accurately mold the product and improving the molding precision.

[0104] It can be understood that the upper die assembly 10 is also provided with the same structure of the take-and-place groove 24 as the lower die assembly 20, and the take-and-place groove 24 of the upper die assembly 10 is arranged on the groove wall of the mounting groove 11. In this way, by arranging the take-and-place groove 24 on the groove wall of the mounting groove 11, a certain working space can be provided between the upper die assembly 10 and the first forming assembly 30, which facilitates the disassembly and assembly work of the first forming assembly 30 by the operator.

[0105] The working process of the above-mentioned forming die 100 is as follows:

[0106] Firstly, the upper die assembly 10 and the lower die assembly 20 move relatively and close the mold, so that the insert part 32 and the insert body 413 form a forming cavity of the injection molding product. The molten plastic flows into the forming cavity through the injection part 34, and the liquid provided by the external liquid supply part flows from the water inlet 331 to the water outlet 332 through the cooling flow channel 311, so that the cooling flow channel 311 regulates the temperature in the insert part 32, the insert body 413 and the forming cavity by circulating the cooling liquid, so that the molten plastic is stably formed into a product in the forming cavity, preventing the product from being deformed due to the high temperature in the forming cavity.

[0107] Then, the upper die assembly 10 and the lower die assembly 20 move away from each other and open the mold. The driving part 46 drives the plunger plate 441 to move the plurality of plunger bodies 442 close to the upper die assembly 10, and compresses the elastic body 452 to the connecting body 411, so that the product is stably separated from the forming cavity under the pushing of the plurality of plunger bodies 442. After the product is separated from the forming cavity, the compressed elastic body 452 provides elastic force along the opening direction of the upper die assembly 10 and the lower die assembly 20 under the guidance of the guide body 451, so that the plunger plate 441 drives the plurality of plunger bodies 442 to reset to the initial position, facilitating the forming die 100 to repeatedly perform the forming operation.

[0108] Then, since the forming part 41 and the fixing part 42 are fixedly connected through the supporting part 43, the plunger part 44 and the elastic part 45 are limited between the forming part 41 and the fixing part 42, so that the second forming assembly 40 is formed as a whole, and the insert part 31, the insert part 32, the pressing plate part 33 and the injection part 34 are connected with each other, so that the first forming assembly 30 is also formed as a whole. When the forming die 100 is maintained, the operator can disassemble and assemble the first forming assembly 30 and the second forming assembly 40 between the opening surface of the upper die assembly 10 and the lower die assembly 20, so that the forming die 100 is reasonably arranged, the complex structure design in the forming die 100 is avoided, and the disassembly and assembly efficiency is improved.

[0109] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled 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, characterized in that, include: Upper mold component; The lower mold assembly is positioned opposite to the upper mold assembly and is appropriately fitted. The first molding component is embedded in the upper mold component on the side facing the lower mold component and is detachably connected to the upper mold component; The second molding assembly includes a molding component, a fixing component, a support component, an ejector pin component, an elastic component, and a driving component. The fixing component is embedded in the lower mold assembly. The molding component is located on the side of the fixing component facing the upper mold assembly and is detachably connected to the lower mold assembly. The molding component is used to cooperate with the first molding assembly to form the molding cavity of the injection molded product when the mold is closed. The two ends of the support component are respectively connected to the fixing component and the molding component. One end of the ejector pin component is located between the fixing component and the molding component and is sleeved on the support component. The other end of the ejector pin component is movably inserted through the molding component. The two ends of the elastic component elastically abut against the ejector pin component and the molding component, respectively. The driving component is inserted through the lower mold assembly and connected to the side of the ejector pin component away from the molding component.

2. The molding die as described in claim 1, characterized in that, The elastic element includes: A guide body, one end of which is connected to the ejector pin, and the other end of which is movably inserted through the molded part; An elastomer is sleeved on the guide body, and its two ends elastically abut against the ejector pin and the molded part, respectively.

3. The molding die as described in claim 1, characterized in that, The molded part also includes: A connector is embedded in the lower mold assembly and detachably connected to the lower mold assembly; the connector abuts against the elastic member and is fixedly connected to the support member. A core body is disposed on the side of the connector opposite to the support member and is detachably connected to the connector; and An insert body, one end of which passes through the mold core and is used to participate in the enclosure to form the molding cavity when the mold is closed, and the other end of which is held against the side of the mold core facing the connector body under the pressure of the connector body.

4. The molding die as described in claim 1, characterized in that, The ejector pin includes: An ejector plate is movably disposed between the molded part and the fixing part and sleeved on the support part. The side of the ejector plate facing the molded part abuts against the elastic part, and the side of the ejector plate away from the molded part is connected to the driving part. Multiple ejector pins are spaced apart on the ejector plate and movably pass through the molded part. The multiple ejector pins are used to push the product out of the molded cavity under the action of the ejector plate when the mold is opened.

5. The molding die as described in claim 4, characterized in that, The second molding component also includes; An abutment is provided on the side of the fixing member facing the ejector plate and connected to the fixing member. The abutment has a retaining surface at one end facing the ejector plate, and the retaining surface is used to abut against the ejector plate when the mold is opened.

6. The molding die as described in claim 1, characterized in that, The lower mold assembly has a positioning groove and a receiving groove. The positioning groove is located on the side of the lower mold assembly facing the upper mold assembly. The positioning groove is used to receive the molded part to position the molded part. The receiving groove is located at the bottom of the positioning groove and communicates with the positioning groove. The receiving groove is used to receive the fixing part, the ejector pin part and the support part.

7. The molding die as described in claim 6, characterized in that, The lower mold assembly is also provided with a clearance hole, which is located at the bottom of the receiving groove and is adapted to the driving component. The clearance hole is used to receive the driving component and avoid obstructing its movement.

8. The molding die as described in claim 6, characterized in that, The lower mold assembly is also provided with a pick-and-place slot, which is formed on the wall of the positioning slot.

9. The molding die as described in claim 1, characterized in that, The first molding component includes: A mold core component is embedded in the upper mold assembly and detachably connected to the upper mold assembly; An insert is movably inserted into the mold core and used to participate in the enclosure to form the molding cavity during mold closing; A pressure plate is disposed on the side of the mold core away from the molded part and detachably connected to the mold core. The pressure plate and the mold core clamp and fix the end of the insert away from the molded part. An injection molded part is inserted through the insert and the pressure plate and is detachably connected to the pressure plate. The injection molded part is used to connect the molding cavity when the mold is closed, so as to deliver molten plastic to the molding cavity.

10. The molding die as described in claim 9, characterized in that, The mold core is provided with a cooling channel on the side facing the pressure plate. The cooling channel is arranged around the insert. The pressure plate covers the cooling channel and is provided with an inlet and an outlet. The inlet and the outlet are respectively connected to the two ends of the cooling channel.

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