Injection mold and injection molding equipment

Abstract

The injection mold comprises a first mold and a second mold which are oppositely arranged and are opened and matched; a mold core which is arranged on the second mold and is opposite to the first mold; the two pushing assemblies are symmetrically arranged and abut against each other, each pushing assembly comprises a pushing piece and a pushing insert core, the pushing pieces movably penetrate through the mold core, the pushing insert cores are detachably connected with the pushing pieces and are provided with forming parts, and the forming parts are matched with the first mold and the mold core to form a forming cavity during mold closing; and the product is pushed to be separated from the mold core during mold opening. The injection molding equipment comprises a motor and the injection mold. According to the injection mold and the injection molding equipment, the pushing insert core and the pushing piece which are detachably connected are arranged, so that a split type structure is formed between the pushing insert core and the pushing piece, accurate machining can be conveniently conducted on the forming part of the pushing insert core through machining equipment, then a product is accurately formed in the forming cavity in an injection molding mode, the forming precision of the injection mold is improved, and the product quality is improved. The die can be quickly maintained, and the production efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an injection molding mold and injection molding equipment. Background Art

[0002] Nowadays, the application scope of injection molds is becoming wider and wider. For example, they are used in the back panels of injection molded electronic products. Since small precision components are generally installed on the back panels, the molding accuracy of the injection molds for such precision components has higher geometric tolerance requirements.

[0003] When the upper and lower molds of the injection mold are closed, the oblique pins arranged on the lower mold and the upper mold core arranged on the upper mold are combined to form a molding cavity to inject and mold the product, wherein the oblique pin is usually composed of an integrally formed oblique pin insert and an oblique pin rod, and the interior and side walls of the oblique pin insert are generally provided with a molding structure for participating in the encirclement and formation of the molding cavity. However, the oblique pin rod will block part of the structure of the oblique pin insert, making it difficult for the processing equipment to accurately process the molding structure of the oblique pin insert, or it is impossible to ensure that multiple sets of enclosed cavities are processed on the same clamping reference, resulting in a large tolerance between the size of the molding structure and the standard value, thereby reducing the molding accuracy of the injection mold. Utility Model Content

[0004] In view of the above situation, it is necessary to provide an injection mold and an injection molding device to improve molding accuracy.

[0005] An embodiment of the present application provides an injection mold, including a first mold and a second mold that are relatively arranged and opened to match, the injection mold also includes: a mold core, which is arranged in the second mold and is relatively arranged with the first mold; two groups of push assemblies, the two groups of push assemblies are symmetrically arranged and abut against each other, each group of the push assemblies includes a push piece and a push insert, the push piece is movably inserted into the mold core, the push insert is detachably connected to the push piece, the push insert is opened with a molding part, the molding part cooperates with the first mold and the mold core to form a molding cavity when the mold is closed so as to inject and form a product, and pushes the product out of the mold core when the mold is opened.

[0006] In the above-mentioned injection mold, by providing a detachably connected push-in and a push-out piece, a split structure can be formed between the push-in and the push-out piece, which is convenient for processing equipment to accurately machine the molding part of the push-in, and avoids the push-out piece interfering with external equipment in machining the molding part, so that the size of the molding part is within the preset standard range, and the molding part can be accurately injection molded into the product, which is beneficial to ensuring the quality of the product and improving the molding accuracy of the injection mold. At the same time, it is also convenient for the replacement and maintenance of the push-in, reduces the cost of use, realizes quick maintenance of the injection mold, and ensures production efficiency.

[0007] In some embodiments, the push-in piece includes: a push portion, which is provided with the forming portion; a raised portion, which is provided at an end of the push portion away from the first mold and is provided with a connecting hole, and the connecting hole passes through the opposite sides of the raised portion; and a latch, which is adapted to the connecting hole and movably penetrates the connecting hole and the push-in piece, so that the push-in piece can be detachably connected to the push-in piece.

[0008] In some embodiments, the pushing member includes: a pushing body, which is inclined relative to the pushing portion and movably inserted into the mold core; a connecting portion, which is provided with a receiving groove and a through hole adapted to the protruding portion, the receiving groove is used to receive and hold the protruding portion and to connect the connecting hole and the through hole, and the pin is inserted into the through hole and the connecting hole to connect the protruding portion with the connecting portion.

[0009] In some embodiments, the mold core is provided with a plurality of injection positions, and each of the injection positions is respectively provided with two sets of the ejection assemblies.

[0010] In some embodiments, a side wall of each of the pushers is provided with a glue feed groove connected to the fluid of the molding portion, and the mold core is also provided with a main glue channel and multiple glue distribution channels, and the multiple glue distribution channels are respectively connected to the main glue channel and the corresponding glue feed groove fluid, so as to guide the molten plastic to the molding cavity.

[0011] In some embodiments, the injection mold also includes a guide member, which is arranged on the side of the first mold facing the second mold; a guide groove is provided on the side of the second mold facing the first mold, and the guide groove is arranged opposite to the guide member, and the guide groove is used to receive the guide member to guide the first mold to close the second mold when the molds are closed.

[0012] In some embodiments, the injection mold further includes: a pushing member, which is movably disposed in the second mold and connected to the pushing member, and the pushing member is used to drive the pushing member to move along the mold opening direction.

[0013] In some embodiments, a clamping portion is provided at one end of the pushing member adjacent to the pushing member, and a clamping adapter portion is provided at one end of the pushing member adjacent to the pushing member, and the clamping portion is clamped with the clamping adapter portion to make the pushing member and the pushing member detachably connected.

[0014] In some embodiments, the injection mold further includes: a limiting member, embedded in the second mold and located on the side of the mold core away from the first mold, and the limiting member is provided with a limiting groove adapted to the pushing member, and the limiting groove is used to receive and limit the pushing member.

[0015] An embodiment of the present application also provides an injection molding device, comprising a motor and the above-mentioned injection mold, wherein the motor is used to drive the injection mold to open or close the mold.

[0016] In the above-mentioned injection molding equipment, by utilizing the detachable connection between the push piece and the push insert in the injection mold, a split structure can be formed between the push piece and the push piece, which is convenient for the processing equipment to accurately machine the molding part of the push piece, and avoids the push piece interfering with the external equipment in machining the molding part, so that the size of the molding part is within the preset standard range, and then the molding part can be accurately injection molded into the product, which is beneficial to ensuring the quality of the product, improving the molding accuracy of the injection molding equipment, and at the same time realizing quick maintenance and ensuring production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of the injection mold provided in an embodiment of the present application.

[0018] Figure 2 for Figure 1 The three-dimensional structural schematic diagram of the second mold, mold core, ejection assembly, pushing member and limiting member in the injection mold is shown.

[0019] Figure 3 for Figure 2 Schematic diagram of the exploded structure of the ejector assembly in the injection mold shown.

[0020] Figure 4 A schematic diagram of the structure of the injection molding equipment provided in an embodiment of the present application.

[0021] Main component symbols

[0022] Injection mold 100

[0023] The first mold 10

[0024] Second mold 20

[0025] Guide groove 21

[0026] Mould 30

[0027] Injection molding position 31

[0028] Main rubber road 32

[0029] Rubber channel 33

[0030] Push assembly 40

[0031] Push piece 41

[0032] Push body 411

[0033] Connection part 412

[0034] Storage slot 4121

[0035] Through hole 4122

[0036] Clamping adapter 413

[0037] Push-in 42

[0038] Forming Department 421

[0039] Pushing part 422

[0040] Raised portion 423

[0041] Connection hole 4231

[0042] Latch 424

[0043] Guide ramp 425

[0044] Glue feeding slot 426

[0045] Guide 50

[0046] Pusher 60

[0047] Clamping portion 61

[0048] Limiting piece 70

[0049] Limiting slot 71

[0050] Injection molding equipment 200

[0051] Motor 201 DETAILED DESCRIPTION

[0052] In order to more clearly understand the purpose, features and advantages of the present application, the present application is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth to facilitate a full understanding of the present application, and the embodiments described are only a part of the embodiments of the present application, rather than all of the embodiments.

[0053] The embodiments of the present application are further described below in conjunction with the accompanying drawings.

[0054] See also Figure 1 The embodiment of the present application provides an injection mold 100, which includes a first mold 10 and a second mold 20 that are relatively arranged and opened and matched, a mold core 30 and two sets of ejection assemblies 40, and the injection mold 100 is used for injection molding products.

[0055] See also Figure 1 and Figure 2The mold core 30 is arranged in the second mold 20 and is arranged opposite to the first mold 10. The two groups of push assemblies 40 are symmetrically arranged and abut against each other. Each group of push assemblies 40 includes a push piece 41 and a push insert 42. The push piece 41 is movably inserted into the mold core 30. The push insert 42 is detachably connected to the push piece 41. The push insert 42 is provided with a molding part 421. The molding part 421 cooperates with the first mold 10 and the mold core 30 to form a molding cavity when the mold is closed so as to inject and form a product, and pushes the product out of the mold core 30 when the mold is opened.

[0056] In the above-mentioned injection mold 100, by providing a detachably connected push-in sub-assembly 42 and a push-out member 41, a split structure can be formed between the push-in sub-assembly 42 and the push-out member 41, which is convenient for processing equipment to accurately machine the molding portion 421 of the push-in sub-assembly 42, and avoids the push-out member 41 interfering with the external equipment in machining the molding portion 421, so that the size of the molding portion 421 is within the preset standard range, and then the molding portion 421 can be accurately injection molded into the product, which is beneficial to ensuring the quality of the product and improving the molding accuracy of the injection mold 100. At the same time, it is also convenient for the replacement and maintenance of the push-in sub-assembly 42, reducing the cost of use, realizing quick maintenance of the injection mold 100, and ensuring production efficiency.

[0057] See also Figure 3 In some embodiments, the push-in member 42 includes a push-in portion 422, a protrusion 423, and a latch 424. The push-in portion 422 is provided with a molding portion 421. The protrusion 423 is provided at one end of the push-in portion 422 away from the first mold 10 and is provided with a connecting hole 4231, which passes through opposite sides of the protrusion 423. The latch 424 is adapted to the connecting hole 4231 and is movably provided through the connecting hole 4231 and the push-in member 41, so that the push-in member 42 can be detachably connected to the push-in member 41.

[0058] In this way, by setting the specific structure of the above-mentioned push-in member 42, when the push assembly 40 is assembled, the pin 424 sequentially penetrates the push piece 41 and the connecting hole 4231 and engages with the protrusion 423, so that the push-in member 42 can be detachably connected to the push piece 41, thereby forming a split structure between the push-in member 42 and the push piece 41, which is convenient for the disassembly and assembly of the push-in member 42 and the push piece 41.

[0059] Optionally, the cross-sections of the latch 424 and the connection hole 4231 are both square, conical, or other shapes, and the latch 424 is engaged between the connection hole 4231 and the protrusion 423 to prevent the push-in 42 and the push-out member 41 from rotating relative to each other, which is beneficial for the push-in 42 to stably inject the product. In other embodiments, the cross-sections of the latch 424 and the connection hole 4231 can be rectangular, etc., as long as the push-in 42 and the push-out member 41 are prevented from rotating relative to each other, which will not be described in detail here.

[0060] In some embodiments, the peripheral side of the pushing portion 422 has a guiding inclined surface 425 adapted to the first mold 10 so as to slide against the first mold 10 during mold closing.

[0061] In this way, by setting the above-mentioned guiding bevel 425, it can be made to slide against the first mold 10 when the mold is closed, so that the guiding bevel 425 and the first mold 10 cooperate with each other to position the pushing part 422, so that the molding part 421 set on the pushing part 422 is accurately docked with the molding area of ​​the first mold 10, avoiding misalignment between the molding part 421 and the molding area of ​​the first mold 10, facilitating the injection mold 100 to accurately inject the product and improving the molding accuracy.

[0062] In some embodiments, the push member 41 includes a push body 411 and a connecting portion 412. The push body 411 is tilted relative to the push portion 422 and is movably disposed in the mold core 30. The connecting portion 412 is provided with a receiving groove 4121 adapted to the protruding portion 423 and a through hole 4122 penetrating the receiving groove 4121. The receiving groove 4121 is used to receive and hold the protruding portion 423 and to connect the connecting hole 4231 and the through hole 4122. The latch 424 is inserted into the through hole 4122 and the connecting hole 4231 to connect the protruding portion 423 with the connecting portion 412.

[0063] In this way, by setting the specific structure of the above-mentioned pushing member 41, the connecting part 412 can receive and clamp the protrusion 423 through the receiving groove 4121 adapted to the protrusion 423, so as to limit the protrusion 423 received therein, so that the pushing member 42 maintains a preset orientation when assembled to the connecting part 412, and prevents the pushing member 42 from rotating or shifting when assembled to the connecting part 412, thereby facilitating the disassembly and assembly of the pushing member 41 and the pushing member 42.

[0064] See also Figure 2 In some embodiments, the mold core 30 is provided with a plurality of injection positions 31 , and each injection position 31 is respectively provided with two sets of ejection assemblies 40 .

[0065] In this way, by setting the above-mentioned multiple injection positions 31, the injection mold 100 can simultaneously injection mold multiple products, thereby realizing the function of simultaneously molding multiple products without the need to injection mold individual products one by one, thereby improving the molding efficiency of the injection mold 100.

[0066] Please continue reading Figure 2 and Figure 3In some embodiments, the side wall of each push-in part 42 is provided with a glue inlet groove 426 which is fluidly connected to the molding part 421. The mold core 30 is also provided with a main glue channel 32 and a plurality of branch glue channels 33. The plurality of branch glue channels 33 are respectively fluidly connected to the main glue channel 32 and the corresponding glue inlet groove 426 for guiding the molten plastic to the molding cavity.

[0067] In this way, by setting the above-mentioned glue feed groove 426, main glue channel 32 and multiple glue branching channels 33, the main glue channel 32 can guide the molten plastic through the multiple glue branching channels 33 to the corresponding molding parts 421 connected to the glue feed groove 426, thereby realizing the simultaneous delivery of molten plastic to multiple molding cavities and simultaneous molding of multiple products, so as to improve the molding efficiency of the injection mold 100, and at the same time avoid setting too many glue feed channels to simplify the structure of the injection mold 100.

[0068] See also Figure 1 In some embodiments, the injection mold 100 further includes a guide member 50, which is disposed on the side of the first mold 10 facing the second mold 20. A guide groove 21 is disposed on the side of the second mold 20 facing the first mold 10, and the guide groove 21 is disposed opposite to the guide member 50. The guide groove 21 is used to receive the guide member 50 to guide the first mold 10 to close the second mold 20 during mold closing.

[0069] In this way, by setting the above-mentioned guide member 50, the guide member 50 can be inserted into the guide groove 21 to guide the first mold 10 when the mold is closed, so that the first mold 10 can be accurately docked with the second mold 20, and then the molding part 421 and the molding area of ​​the first mold 10 can be stably enclosed to form a molding cavity for the injection molded product, thereby improving the molding accuracy.

[0070] See also Figure 2 In some embodiments, the injection mold 100 further includes a pusher 60, which is movably disposed in the second mold 20 and connected to the pusher 41, and is used to drive the pusher 41 to move along the mold opening direction. In this embodiment, the pusher 60 can be any pusher part, pusher body or similar pusher rod that can push the pusher 41 to move, such as a pusher rod connected to a cylinder.

[0071] In this way, by setting the above-mentioned pushing member 60, the pushing member 60 can provide a driving force for the pushing member 41 along the mold opening direction. When the injection mold 100 is opened, the pushing member 41 drives the pushing member 60 to drive the pushing member 42 to move toward the first mold 10, so that the pushing member 42 can stably push the molded product out of the mold core 30, thereby improving the demolding stability of the product.

[0072] In some embodiments, a clamping portion 61 is provided at one end of the pushing member 60 adjacent to the pushing member 41, and a clamping adapter portion 413 is provided at one end of the pushing member 41 adjacent to the pushing member 60, and the clamping portion 61 is clamped with the clamping adapter portion 413 so that the pushing member 60 and the pushing member 41 are detachably connected. In this embodiment, the clamping portion 61 is a clamping groove, and the clamping adapter portion 413 is a clamping body adapted to the clamping groove, and the clamping body is clamped with the pushing member 41 through the clamping groove. It can be understood that in other embodiments, the positions of the clamping portion 61 and the clamping adapter portion 413 can be interchanged, the clamping portion 61 is provided at one end of the pushing member 41 adjacent to the pushing member 60, and the clamping adapter portion 413 is provided at one end of the pushing member 60 adjacent to the pushing member 41.

[0073] In this way, by setting the above-mentioned holding part 61 and the holding adapter part 413 to cooperate with each other, the pushing member 60 and the pushing member 41 can be detachably connected, so that a split structure is formed between the pushing member 60 and the pushing member 41, which is convenient for the operator to disassemble and assemble the pushing member 60 and the pushing member 41.

[0074] In some embodiments, the injection mold 100 also includes a limit member 70, which is embedded in the second mold 20 and located on the side of the mold core 30 away from the first mold 10, and the limit member 70 is provided with a limit groove 71 adapted to the push member 60, and the limit groove 71 is used to accommodate and limit the push member 60.

[0075] In this way, by setting the above-mentioned limiting member 70, the limiting groove 71 can accommodate the pushing member 60 to limit the movement direction of the pushing member 60, so that the pushing member 60 always moves along the mold opening direction under the limitation of the limiting groove 71, which is beneficial for the pushing member 60 to stably drive the push insert 42 to push the formed product out of the mold core 30, thereby improving the demolding stability.

[0076] See also Figure 4 The utility model also provides an injection molding device 200, which includes a motor 201 and the above-mentioned injection mold 100, and the motor 201 is used to drive the injection mold 100 to open or close the mold.

[0077] In the above-mentioned injection molding equipment 200, by utilizing the detachable connection between the push piece 41 and the push insert 42 in the injection mold 100, a split structure can be formed between the push insert 42 and the push piece 41, which is convenient for the processing equipment to accurately machine the molding part 421 of the push insert 42, and avoids the push piece 41 interfering with the external equipment in the mechanical processing of the molding part 421, so that the size of the molding part 421 is within the preset standard range, and then the molding part 421 can be accurately injection molded into the product, which is beneficial to ensuring the quality of the product, improving the molding accuracy of the injection molding equipment 200, and at the same time realizing quick maintenance and ensuring production efficiency.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. An injection mold, comprising a first mold and a second mold arranged opposite to each other and adapted to each other, characterized in that: The injection mold further comprises: A mold core, disposed in the second mold and opposite to the first mold; Two groups of push assemblies are symmetrically arranged and abut against each other, each group of push assemblies includes a push piece and a push insert, the push piece is movably inserted into the mold core, the push insert is detachably connected to the push piece, and the push insert is provided with a molding part, the molding part cooperates with the first mold and the mold core to form a molding cavity when the mold is closed so as to inject and form a product, and pushes the product out of the mold core when the mold is opened.

2. The injection mold according to claim 1, characterized in that: The push-in sub-assembly comprises: The pushing part is provided with the forming part; A raised portion is provided at one end of the pushing portion away from the first mold and is provided with a connecting hole, wherein the connecting hole passes through two opposite sides of the raised portion; and A latch is matched with the connection hole and movably penetrates the connection hole and the push piece, so that the push insert can be detachably connected to the push piece.

3. The injection mold according to claim 2, characterized in that: The push member comprises: A push body, which is arranged obliquely relative to the push portion and movably penetrates the mold core; The connecting portion is provided with a receiving groove and a through hole adapted to the protruding portion, the receiving groove is used to receive and hold the protruding portion and to connect the connecting hole and the through hole, and the latch is inserted into the through hole and the connecting hole to connect the protruding portion with the connecting portion.

4. The injection mold according to claim 1, characterized in that: The mold core is provided with a plurality of injection positions, and each of the injection positions is respectively provided with two groups of the ejection assemblies.

5. The injection mold according to claim 1, characterized in that: A glue inlet groove is formed on the side wall of each pusher and is fluidly connected to the molding portion. The mold core is also provided with a main glue channel and a plurality of branch glue channels. The plurality of branch glue channels are respectively fluidly connected to the main glue channel and the corresponding glue inlet grooves for guiding the molten plastic to the molding cavity.

6. The injection mold according to claim 1, characterized in that: The injection mold further comprises a guide member, wherein the guide member is arranged on a side of the first mold facing the second mold; A guide groove is provided on a side of the second mold facing the first mold, and the guide groove is arranged opposite to the guide member. The guide groove is used to receive the guide member to guide the first mold to close the second mold during mold closing.

7. The injection mold according to claim 1, characterized in that: The injection mold further comprises: A pushing member is movably arranged in the second mold and connected to the pushing member, and the pushing member is used to drive the pushing member to move along the mold opening direction.

8. The injection mold according to claim 7, characterized in that: A clamping portion is provided at one end of the pushing member adjacent to the pushing member, and a clamping adapter is provided at one end of the pushing member adjacent to the pushing member. The clamping portion is clamped with the clamping adapter so that the pushing member and the pushing member are detachably connected.

9. The injection mold according to claim 8, characterized in that: The injection mold further comprises: The limiting member is embedded in the second mold and is located on the side of the mold core away from the first mold, and the limiting member is provided with a limiting groove matched with the pushing member, and the limiting groove is used to receive and limit the pushing member.

10. An injection molding device, characterized in that: It comprises a motor and the injection mold as described in any one of claims 1 to 9, wherein the motor is used to drive the injection mold to open or close the mold.

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