Injection mold assembly

Abstract

The utility model provides a kind of injection mold assembly, it is related to vehicle manufacturing technical field, and it includes: mould main body, mould main body is formed with injection molding space;Inner shrink core structure, inner shrink core structure includes shrink core, elastic component and shovel base component, shrink core is movably installed in mould main body along first direction, shovel base component is movably installed in mould main body along second direction, and shovel base component is set as when moving along second direction, it is suitable for pushing shrink core to move along first direction, so that at least part of shrink core can be extended to injection molding space to be used to form the mounting hole of injection molded part, elastic component is used to apply to shrink core elastic force that makes at least part of shrink core exit from injection molding space, first direction and second direction intersect.The injection mold assembly of the utility model embodiment can avoid hindering injection molded part ejection, ensure the convenience of injection molded part ejection while improving the appearance quality of injection molded part, ensure production efficiency, use effect is better, and the scope of application is wider.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to an injection mold assembly. Background Technology

[0002] With the development of the national economy and the continuous improvement of living standards, vehicles are becoming increasingly important in daily life and travel. The aesthetics and convenience of vehicle manufacturing are also important considerations. To ensure driving safety, existing vehicles can have a rear bumper beam installed on the sheet metal structure of the tailgate. The rear bumper beam has mounting holes that connect to the sheet metal structure, and both the rear bumper beam and the mounting holes can be injection molded.

[0003] Existing injection molds for rear bumper beams typically employ an internal angled ejector or an external straight ejector with a core-pulling mechanism to directly form mounting holes during injection molding. However, the angled ejector structure leaves a mark on the surface of the rear bumper, affecting its aesthetics. The external straight ejector with a core-pulling mechanism is limited by the external flange shape of the rear bumper, making demolding difficult. Therefore, there is room for improvement. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes an injection mold assembly that can ensure the convenience of injection molding part demolding while avoiding affecting the appearance of the injection molded part, improving the appearance quality, thereby improving the aesthetics of the injection molded part and ensuring production efficiency.

[0005] An injection mold assembly according to an embodiment of the present invention includes: a mold body having an injection molding space; an inner core structure including a core, an elastic component, and a spade base component, wherein the core is movably mounted on the mold body along a first direction, the spade base component is movably mounted on the mold body along a second direction, and the spade base component is configured to push the core along the first direction when moving along the second direction, so that at least a portion of the core can extend into the injection molding space to form a mounting hole for an injection molded part, and the elastic component is used to apply an elastic force to the core to retract at least a portion of the core from the injection molding space, wherein the first direction intersects the second direction.

[0006] According to the injection mold assembly of this utility model embodiment, by setting the movement direction of the shrinking core and the movement direction of the shovel base assembly to intersect, and the elastic component can allow at least a portion of the shrinking core to exit from the injection molding space, thereby allowing at least a portion of the shrinking core to extend into the injection molding space to form a mounting hole for the injection molded part, and avoiding obstruction to the ejection of the injection molded part, ensuring the convenience of ejection of the injection molded part while improving the appearance quality of the injection molded part, ensuring production efficiency, better use effect, and wider application range.

[0007] According to some embodiments of the present invention, the injection mold assembly includes a limiting block and an elastic element. The shrinking core has a clearance space. The elastic element is located in the clearance space and elastically presses against the shrinking core and the limiting block. At least a portion of the limiting block is limited and abuts against the mold body.

[0008] According to some embodiments of the present invention, the injection mold assembly includes a shovel base and a mounting block structure. The shovel base is connected to a B plate through the mounting block structure, and the B plate is adapted to drive the shovel base to move along a second direction.

[0009] According to some embodiments of the present invention, the injection mold assembly includes an mounting block structure comprising a mounting plate, a mounting block, and a connector. The shovel base passes through the mounting block and is at least partially sandwiched between the mounting block and the mounting plate. The connector is adapted to pass through the mounting block, the mounting plate, and the B plate in sequence.

[0010] According to some embodiments of the present invention, the injection mold assembly further includes: a guide sleeve, the guide sleeve being installed inside the mold body and the guide sleeve being fixedly positioned to the mold body by a snap ring, and the shovel base being adapted to pass through the guide sleeve so as to guide and move in coordination with the guide sleeve when moving along the second direction.

[0011] According to some embodiments of the present invention, in the injection mold assembly, the shovel base has a guide slope formed at one end near the shrinking core. The guide slope is arranged parallel to the end face of the shrinking core and is adapted to press against the end face of the shrinking core.

[0012] According to some embodiments of the present invention, the injection mold assembly includes a large ejector pin, a small ejector pin, and an A-plate. The large ejector pin, the small ejector pin, and the A-plate together define the injection molding space. The shrinkage core is located within the large ejector pin and is adapted to press against the small ejector pin when it extends at least partially into the injection molding space.

[0013] According to some embodiments of the present invention, the injection molding assembly includes a main molding space and an installation molding space that are connected to each other. The main molding space is formed between the A plate and the large straight top and the small straight top. The installation molding space is formed between the small straight top and the large straight top. At least a portion of the shrinking core is adapted to penetrate the installation molding space and abut against the small straight top to form the mounting hole.

[0014] According to some embodiments of the present invention, in the injection mold assembly, the large ejector pin has an installation groove, the small ejector pin is installed in the installation groove, and the installation molding space is formed between the inner wall of the installation groove and the small ejector pin.

[0015] According to some embodiments of the present invention, the injection mold assembly has a first guide channel and a second guide channel. The first guide channel is connected between the mounting molding space and the second guide channel. The shrinking core and the elastic component are located in the first guide channel, and the shrinking core is adapted to move along the first guide channel. The shovel base component is installed in the second guide channel and is adapted to move along the second guide channel.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the inner core structure according to an embodiment of the present utility model; Figure 2 This is a cross-sectional view of the injection mold assembly according to an embodiment of the present utility model. Figure 1 ; Figure 3 This is a partial cross-sectional view of the injection mold assembly according to an embodiment of the present utility model. Figure 1 ; Figure 4 This is a cross-sectional view of the injection mold assembly according to an embodiment of the present utility model. Figure 2 ; Figure 5 This is a partial cross-sectional view of the injection mold assembly according to an embodiment of the present utility model. Figure 2 .

[0018] Figure label: Injection mold assembly 100, mounting hole 101 Mold body 1, A plate 11, large ejector pin 12, first guide channel 121, second guide channel 122, small ejector pin 13, injection molding space 14, main body molding space 141, assembly molding space 142. Inner core structure 2, core 21, clearance space 211, elastic component 22, limiting block 221, elastic element 222, snap ring 23, shovel base 24, guide slope 241, mounting block structure 25, mounting plate 251, mounting block 252, connector 253, guide sleeve 26, limiting groove 261, B plate 3. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The following is for reference. Figures 1-5 The injection mold assembly 100 according to the present invention can ensure the convenience of injection molded parts demolding while avoiding the impact on the appearance of injection molded parts, thereby improving the appearance quality, enhancing the aesthetics of injection molded parts, and ensuring production efficiency.

[0023] like Figures 1-5 As shown, an injection mold assembly 100 according to an embodiment of the present invention includes: a mold body 1 and an inner shrinking core structure 2.

[0024] The mold body 1 forms an injection molding space 14. The inner core structure 2 includes a core 21, an elastic component 22, and a spade base component. The core 21 is movably mounted on the mold body 1 along a first direction. The spade base component is movably mounted on the mold body 1 along a second direction. The spade base component is configured to push the core 21 along the first direction when moving along the second direction, so that at least a portion of the core 21 can extend into the injection molding space 14 to form a mounting hole 101 for the injection molded part. The elastic component 22 is used to apply an elastic force to the core 21 to cause at least a portion of the core 21 to retract from the injection molding space 14. The first direction intersects the second direction.

[0025] The injection mold assembly 100 is used to injection mold injection parts, which can be constructed as rear door sill beams. When the injection mold assembly 100 injection molds the rear door sill beams, it can simultaneously form mounting holes 101 on the rear door sill beams, so that the rear door sill beams can be connected to the sheet metal structure of the rear tailgate of the vehicle body through the mounting holes 101, which can improve the manufacturing efficiency and quality of the rear door sill beams.

[0026] Specifically, the injection mold assembly 100 includes a mold body 1, within which an injection molding space 14 is formed. Material can be injected into the injection molding space 14 to form the required injection molded parts. This is convenient to operate, allows for one-piece molding of products, ensures the structural strength of the injection molded parts, and allows for adjustment of the shape of the mold body 1 to adjust the shape of the injection molding space 14 according to different product structures. This enables the molding of different styles of injection molded parts, providing high flexibility. The injection mold assembly 100 also includes an inner shrinkage core structure 2, which is movably installed within the mold body 1. At least a portion of the inner shrinkage core structure 2 can extend into the injection molding space 14. When the injection molded parts are molded through the injection molding space 14, the inner shrinkage core structure 2 located within the injection molding space 14 can block the injection material, allowing parts of the injection molded parts to form grooves or holes, meeting different molding requirements and improving flexibility.

[0027] Furthermore, the inner core structure 2 is provided with a core 21 and a spade base assembly. The core 21 is movably installed inside the mold body 1 and can move in the mold body 1 along a first direction. The spade base assembly is also movably installed inside the mold body 1 and can move in the mold body 1 along a second direction. The spade base assembly can move closer to or further away from the core 21 along the second direction. When the spade base assembly moves closer to the core 21 along the second direction, it can press against one end of the core 21 to push the core 21 to move along the first direction, thereby allowing at least a portion of the core 21 to be placed inside the injection molded part. When the user performs injection molding in the injection molding space 14, the portion of the core 21 located in the injection molding space 14 can block the injection molding material, so that the injection molded part can form an installation hole 101. That is, when the injection molded part is a rear anti-collision beam, the inner core structure 2 can make the rear anti-collision beam directly form an installation hole 101 during molding, which facilitates the installation of the rear anti-collision beam.

[0028] Furthermore, the inner core structure 2 is also provided with an elastic component 22, which is installed between the core 21 and the mold body 1. When the shovel base component pushes the core 21 to move along the first direction until it is partially located in the injection molding space 14, the core 21 can compress the elastic component 22. After injection molding is completed, the shovel base component can move in the opposite direction, thereby removing the force pressing against the core 21. At this time, the elastic component 22 can apply an elastic force to the core 21 to restore its deformation, thereby allowing at least a portion of the core 21 to exit from the injection molding space 14. This avoids the portion of the core 21 located in the injection molding space 14 from obstructing the injection molded part when demolding, thus improving the convenience of demolding and increasing production efficiency.

[0029] In addition, the first direction intersects with the second direction, that is, there is an angle between the movement direction of the shrinking core 21 and the movement direction of the shovel base assembly, so that the movement direction of the shrinking core 21 and the movement direction of the shovel base assembly are different. This allows the shovel base assembly to extend from the back of the mold body 1 into the mold body 1 to push the shrinking core 21 to move, avoiding interference between the movement trajectory of the shovel base assembly and the shrinking core 21 and the injection molding space 14, thereby ensuring the integrity of the injection molded part and ensuring the appearance quality of the injection molded part.

[0030] According to the injection mold assembly 100 of this utility model embodiment, by setting the movement direction of the shrinking core 21 and the movement direction of the shovel base assembly to intersect, and the elastic component 22 can allow at least a portion of the shrinking core 21 to exit from the injection molding space 14, thereby allowing at least a portion of the shrinking core 21 to extend into the injection molding space 14 to form the mounting hole 101 of the injection molded part, and avoiding obstruction to the ejection of the injection molded part, ensuring the convenience of ejection of the injection molded part while improving the appearance quality of the injection molded part, ensuring production efficiency, better use effect, and wider application range.

[0031] In some embodiments, the elastic component 22 includes a limiting block 221 and an elastic member 222. The shrinking core 21 forms a clearance space 211. The elastic member 222 is located in the clearance space 211 and elastically presses against the shrinking core 21 and the limiting block 221. At least a portion of the limiting block 221 is limited and abuts against the mold body 1.

[0032] Specifically, the elastic component 22 is installed between the shrinking core 21 and the mold body 1, and as follows: Figure 1 , Figure 3 as well as Figure 5 As shown, the elastic component 22 is provided with a limiting block 221 and an elastic element 222. The shrinking core 21 forms a clearance space 211. The limiting block 221 and the elastic element 222 are both located in the clearance space 211. The elastic element 222 elastically presses against the inner wall between the limiting block 221 and the clearance space 211. This ensures that when the shrinking core 21 squeezes the elastic element 222, the elastic element 222 is always located between the shrinking core 21 and the mold body 1, so as to ensure the reliability of the use of the elastic element 222. It also ensures that the elastic force applied by the elastic element 222 to the shrinking core 21 is along the first direction, so as to ensure that the shrinking core 21 moves along the first direction and ensures the reliability of the movement trajectory of the shrinking core 21.

[0033] In addition, at least a portion of the limiting block 221 is stopped and abutted against the mold body 1, such as Figure 3 As shown, the mold body 1 has a groove. The end of the limiting block 221 away from the shrinking core 21 can be placed in the groove, thereby limiting the limiting block 221 and ensuring the stability of the installation position of the limiting block 221. This allows the elastic element 222 to be fixed at one end against the limiting block 221, while the other end can be compressed by the shrinking core 21 or have an elastic force applied to it, ensuring the reliability of the elastic component 22 and ensuring that part of the shrinking core 21 can be removed from the injection molding space 14, thus ensuring the reliability of the demolding.

[0034] In some embodiments, the shovel base assembly includes a shovel base 24 and a mounting block structure 25. The shovel base 24 is connected to a B plate 3 via the mounting block structure 25. The B plate 3 is adapted to drive the shovel base 24 to move in a second direction.

[0035] Specifically, the shovel base assembly is movably installed within the mold body 1, and as follows: Figures 1-2 as well as Figure 4As shown, the shovel base assembly is provided with a shovel base 24 and a mounting block structure 25. The shovel base 24 can be constructed as a columnar structure, one end of which can press against the shrink core 21 when moving in the second direction. The other end of the shovel base 24 can be mounted on the B plate 3 through the mounting block structure 25. When the injection mold assembly 100 is installed, the B plate 3 can be moved in the second direction, which in turn can drive the shovel base 24 of the shovel base assembly to move in the second direction. When the B plate 3 is connected to the mold body 1, the shovel base 24 can press against the shrink core 21, so that at least a part of the shrink core 21 is placed in the injection molding space 14. After the injection is completed, the B plate 3 can be separated from the mold body 1, so that the B plate 3 can drive the shovel base 24 to move in the opposite direction, so that the shovel base 24 is separated from the shrink core 21. At this time, part of the shrink core 21 can exit the injection molding space 14 under the action of elastic force, so as to ensure the convenience of the injection molded part demolding, improve production efficiency, and facilitate the movement of the shovel base 24.

[0036] In some embodiments, the mounting block structure 25 includes a mounting plate 251, a mounting block 252, and a connector 253. The shovel base 24 passes through the mounting block 252 and is at least partially sandwiched between the mounting block 252 and the mounting plate 251. The connector 253 is adapted to pass through the mounting block 252, the mounting plate 251, and the B plate 3 in sequence.

[0037] Specifically, one end of the shovel base 24 can be mounted to plate B 3 via the mounting block structure 25, and as follows: Figure 1 As shown, the mounting block structure 25 includes a mounting block 252 and a mounting plate 251. The mounting plate 251 is disposed close to the B plate 3. The mounting block 252 is located at the end of the mounting plate 251 away from the B plate 3. The mounting block 252 has a through hole, and the shovel base 24 can be inserted into the through hole. A limiting part can be formed at the end of the shovel base 24 away from the shrink core 21. The diameter of the limiting part is larger than the diameter of the main body of the shovel base 24. The limiting part is located between the mounting block 252 and the mounting plate 251, so that the limiting part of the shovel base 24 can be clamped between the mounting block 252 and the mounting plate 251, so that the shovel base 24 can move with the mounting block 252 and the mounting plate 251.

[0038] Furthermore, both the mounting block 252 and the mounting plate 251 are provided with connection holes, and the B plate 3 is also provided with connection holes. The mounting block structure 25 is also provided with a connector 253, which can be sequentially inserted into the mounting holes 101 of the mounting block 252, the mounting plate 251, and the B plate 3, thereby connecting the mounting block 252, the mounting plate 251, and the B plate 3 to fix the shovel base 24 through the mounting block 252 and the mounting plate 251. This facilitates installation and makes the shovel base 24 detachable from the B plate 3, allowing for the replacement of shovel bases 24 of different shapes and sizes to suit different injection mold assemblies 100, improving the flexibility of use and the scope of application. Moreover, multiple connection holes can be provided for the mounting block 252, the mounting plate 251, and the B plate 3, allowing multiple points of the mounting block structure 25 to be connected to the B plate 3 through the connector 253, ensuring installation reliability.

[0039] In some embodiments, the injection mold assembly 100 further includes: a guide sleeve 26, which is installed inside the mold body 1 and is fixed to the mold body 1 by a retaining ring 23; and a spade base 24 is adapted to pass through the guide sleeve 26 so as to guide and move in coordination with the guide sleeve 26 when moving in the second direction.

[0040] Specifically, the injection mold assembly 100 is also equipped with a guide sleeve 26, such as Figures 1-2 as well as Figure 4 As shown, the guide sleeve 26 is installed inside the mold body 1. The guide sleeve 26 has a ring-shaped structure. The shovel base 24 can be inserted into the guide sleeve 26. The guide sleeve 26 extends along the second direction. One end of the shovel base 24 can be inserted into the guide sleeve 26, allowing the shovel base 24 to extend into the mold body 1 along the guide sleeve 26, thereby allowing the shovel base 24 to move along the second direction and ensuring the reliability of the movement of the shovel base 24. The outer peripheral wall of the guide sleeve 26 is provided with a limiting groove 261. The limiting groove 261 extends along the circumference of the guide sleeve 26 and is open outward. A retaining spring 23 can be installed in the limiting groove 261. When the guide sleeve 26 is installed inside the mold body 1, the retaining spring 23 can elastically press against the limiting groove 261 and the mold body 1, thereby limiting and fixing the guide sleeve 26. The installation is convenient, and the guide sleeve 26 is detachable relative to the mold body 1. Different guide sleeves 26 can be replaced according to the shovel base 24, increasing the scope of application and meeting different usage requirements.

[0041] In some embodiments, a guide slope 241 is formed at one end of the shovel base 24 near the shrinking core 21. The guide slope 241 is arranged parallel to the end face of the shrinking core 21 and is adapted to press against the end face of the shrinking core 21.

[0042] Specifically, the shovel base 24 can move in the second direction to press against the shrinking core 21, so that the shrinking core 21 moves in the first direction, and as... Figure 1As shown, a guide slope 241 is formed at one end of the shovel base 24 near the shrinking core 21. The guide slope 241 is perpendicular to the first direction and parallel to the end face of the shrinking core 21. When the shovel base 24 moves toward the shrinking core 21 in the second direction, the guide slope 241 can press against the end face of the shrinking core 21. As the shovel base 24 moves, the contact area between the guide slope 241 and the end face gradually increases. Thus, the shrinking core 21 can be pushed to move in the first direction through the guide slope 241. The structure is simple and can ensure the reliability of the cooperation between the shovel base 24 and the shrinking core 21.

[0043] In some embodiments, the mold body 1 includes a large ejector pin 12, a small ejector pin 13, and an A plate 11, which together define an injection molding space 14. The shrinking core 21 is located within the large ejector pin 12 and is adapted to press against the small ejector pin 13 when it extends at least partially into the injection molding space 14.

[0044] Specifically, the inner core structure 2 is installed inside the mold body 1, and as... Figure 2 and Figure 4 As shown, the mold body 1 is provided with a large straight ejector 12, a small straight ejector 13, and an A plate 11. The large straight ejector 12, the small straight ejector 13, and the A plate 11 together define the injection molding space 14, which can be installed. The shovel base assembly and the shrink core 21 are installed in the mold body 1, so that at least a part of the shrink core 21 is placed in the injection molding space 14, and then injection molding can be performed in the injection molding space 14. It is convenient to use, can improve production efficiency, and ensure the reliability of the injection molded parts. The shrink core 21 can be movably installed in the large straight ejector 12. The large straight ejector 12 and the small straight ejector 13 are arranged adjacent to each other. At least a part of the injection molding space 14 can be formed between the large straight ejector 12 and the small straight ejector 13. At least a part of the shrink core 21 can extend into the injection molding space 14 and can press against the small straight ejector 13 to ensure the reliability of the molding of the mounting hole 101 of the injection molded part.

[0045] In some embodiments, the injection molding space 14 includes a main molding space 141 and an mounting molding space 142 that are connected to each other. The main molding space 141 is formed between the A plate 11 and the large straight top 12 and the small straight top 13. The mounting molding space 142 is formed between the small straight top 13 and the large straight top 12. At least a portion of the shrink core 21 is adapted to pass through the mounting molding space 142 and abut against the small straight top 13 to form a mounting hole 101.

[0046] Specifically, the user can fill the injection molding space 14 with injection molding material to form an injection molded part, and as... Figure 3 and Figure 5As shown, the injection molding space 14 includes a main molding space 141 and an installation molding space 142. The main molding space 141 and the installation molding space 142 are connected. The main molding space 141 is formed between the A plate 11 and the large straight top 12 and the small straight top 13. That is, a part of the main molding space 141 is formed between the A plate 11 and the large straight top 12, and another part of the main molding space 141 is formed between the A plate 11 and the small straight top 13. The large straight top 12 and the small straight top 13 are both located on the same side of the A plate 11. The installation molding space 142 is formed between the small straight top 13 and the large straight top 12.

[0047] Thus, when the shovel base 24 presses against the shrink core 21, at least a portion of the shrink core 21 can extend into the mounting molding space 142, thereby making the molded injection part have a main body and a mounting part. The mounting part can be formed with a mounting hole 101. The mounting part is located on the back side of the main body, thereby allowing the main body to be connected to the rest of the structure through the mounting hole 101 of the mounting part, so as to ensure the integrity of the main body and improve the aesthetics.

[0048] In some embodiments, the large straight pin 12 is formed with a mounting groove, the small straight pin 13 is installed in the mounting groove, and the mounting space 142 is formed between the inner wall of the mounting groove and the small straight pin 13.

[0049] Specifically, both the large straight pin 12 and the small straight pin 13 are installed on the same side of plate A 11 along the second direction. The large straight pin 12 has a mounting groove that is open towards plate A 11, and the small straight pin 13 can be installed inside the mounting groove. This ensures that when the large straight pin 12 and plate A 11 are pressed together, the small straight pin 13 can be pressed against the mounting groove, guaranteeing installation reliability. Figure 3 as well as Figure 5 As shown, the mounting forming space 142 is formed between the inner wall of the mounting groove and the small straight top 13. When the shrinking core 21 presses against the small straight top 13, the side of the small straight top 13 away from the shrinking core 21 can be pressed tightly against the inner wall of the mounting groove, and the side of the small straight top 13 close to the shrinking core 21 and the inner wall of the mounting groove define the mounting forming space 142. This also facilitates at least a portion of the shrinking core 21 to be placed in the mounting forming space 142, ensuring the reliability of the mounting hole 101 forming.

[0050] In some embodiments, the large straight top 12 is formed with a first guide channel 121 and a second guide channel 122. The first guide channel 121 communicates between the mounting and forming space 142 and the second guide channel 122. The shrinking core 21 and the elastic component 22 are located in the first guide channel 121, and the shrinking core 21 is adapted to move along the first guide channel 121. The shovel base component is installed in the second guide channel 122 and is adapted to move along the second guide channel 122.

[0051] Specifically, such as Figure 2As shown, a first guide channel 121 and a second guide channel 122 are formed inside the large straight top 12. The first guide channel 121 extends along a first direction, and the second guide channel 122 extends along a second direction. The first guide channel 121 and the second guide channel 122 are connected. The shrinking core 21 and the elastic component 22 are installed in the first guide channel 121. The shrinking core 21 can move along the first guide channel 121, thereby allowing the shrinking core 21 to move along the first direction. The shovel base assembly can be placed in the second guide channel 122. The shovel base assembly can move along the second guide channel 122. The guide sleeve 26 is installed at one end of the second guide channel 122 near the B plate 3 through the snap ring 23. The shovel base 24 of the shovel base assembly can extend into the second guide channel 122 through the guide sleeve 26, thereby moving along the second guide channel 122, so that the shovel base 24 can move along the second direction, thereby ensuring the reliability of the movement trajectory of the shrinking core 21 and the shovel base 24.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An injection mold assembly, characterized in that, include: The mold body (1) has an injection molding space (14). The inner core structure (2) includes a core (21), an elastic component (22), and a spade base component. The core (21) is movably mounted to the mold body (1) along a first direction. The spade base component is movably mounted to the mold body (1) along a second direction and is configured to push the core (21) along the first direction when moving along the second direction, so that at least a portion of the core (21) can extend into the injection molding space (14) to form a mounting hole (101) for the injection molded part. The elastic component (22) is used to apply an elastic force to the core (21) to retract at least a portion of the core (21) from the injection molding space (14). The first direction intersects the second direction.

2. The injection mold assembly according to claim 1, characterized in that, The elastic component (22) includes a limiting block (221) and an elastic element (222). The shrinking core (21) forms a clearance space (211). The elastic element (222) is located in the clearance space (211) and elastically presses against the shrinking core (21) and the limiting block (221). At least a portion of the limiting block (221) is limited and abutted against the mold body (1).

3. The injection mold assembly according to claim 1, characterized in that, The shovel base assembly includes a shovel base (24) and a mounting block structure (25). The shovel base (24) is connected to a B plate (3) via the mounting block structure (25). The B plate (3) is adapted to drive the shovel base (24) to move along a second direction.

4. The injection mold assembly according to claim 3, characterized in that, The mounting block structure (25) includes a mounting plate (251), a mounting block (252), and a connector (253). The shovel base (24) passes through the mounting block (252) and is at least partially sandwiched between the mounting block (252) and the mounting plate (251). The connector (253) is adapted to pass through the mounting block (252), the mounting plate (251), and the B plate (3) in sequence.

5. The injection mold assembly according to claim 3, characterized in that, Also includes: Guide sleeve (26), the guide sleeve (26) is installed inside the mold body (1), and the guide sleeve (26) is limited and fixed to the mold body (1) by a snap ring (23). The shovel base (24) is adapted to pass through the guide sleeve (26) so as to guide and move with the guide sleeve (26) when moving in the second direction.

6. The injection mold assembly according to claim 3, characterized in that, The shovel base (24) has a guide slope (241) formed at one end near the shrinking core (21). The guide slope (241) is arranged parallel to the end face of the shrinking core (21) and is adapted to press against the end face of the shrinking core (21).

7. The injection mold assembly according to claim 1, characterized in that, The mold body (1) includes a large straight top (12), a small straight top (13) and an A plate (11), the large straight top (12), the small straight top (13) and the A plate (11) together define the injection molding space (14), and the shrink core (21) is located in the large straight top (12) and is adapted to press against the small straight top (13) when it extends at least partially into the injection molding space (14).

8. The injection mold assembly according to claim 7, characterized in that, The injection molding space (14) includes a main molding space (141) and an installation molding space (142) that are connected to each other. The main molding space (141) is formed between the A plate (11) and the large straight top (12) and the small straight top (13). The installation molding space (142) is formed between the small straight top (13) and the large straight top (12). At least a portion of the shrink core (21) is adapted to penetrate the installation molding space (142) and abut against the small straight top (13) to form the mounting hole (101).

9. The injection mold assembly according to claim 8, characterized in that, The large straight top (12) has an installation groove, the small straight top (13) is installed in the installation groove, and the installation forming space (142) is formed between the inner wall of the installation groove and the small straight top (13).

10. The injection mold assembly according to claim 8, characterized in that, The large straight top (12) has a first guide channel (121) and a second guide channel (122). The first guide channel (121) is connected between the installation and forming space (142) and the second guide channel (122). The shrinking core (21) and the elastic component (22) are located in the first guide channel (121), and the shrinking core (21) is adapted to move along the first guide channel (121). The shovel base component is installed in the second guide channel (122) and is adapted to move along the second guide channel (122).

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