Injection mold

Abstract

The application discloses an injection mold. The injection mold comprises a first mold core and a second mold core, the first mold core comprises a first mold body, a first abutting breaker and a second abutting breaker, and the first abutting breaker and the second abutting breaker are independently and elastically connected with the first mold body; the second mold core is oppositely arranged with the first mold core along a first direction, the second mold core comprises a second mold body, a first insert and a second insert, the second mold body is engaged with the first mold body in a closed mold state, and the first insert and the second insert are spaced apart on the second mold body along a second direction; wherein the first direction intersects with the second direction, and in the closed mold state, the first abutting breaker abuts against the first insert, and the second abutting breaker abuts against the second insert. In this way, when the first mold core and the second mold core are closed, the size deviation of the first insert and the second insert can be excluded, and the overflow problem caused by the gap can be avoided.

Description

Technical Field

[0001] This application relates to the field of injection molding technology, and more particularly to an injection mold. Background Technology

[0002] In insert molding, a non-plastic insert is placed between the front and rear molds. When the front and rear molds are joined, the parting surfaces of the front and rear molds and the insert surface together form a cavity. Molten plastic is injected into the cavity, and the cooled plastic bonds with the insert and solidifies to form a one-piece product. However, when there are dimensional differences or large tolerances in the insert, conventional break-through methods can easily lead to the front and rear molds not being able to tightly bond with the insert surface, resulting in problems such as excess glue and burrs. It can also easily cause the insert to deform or crack when the mold is closed too tightly. Utility Model Content

[0003] This application provides an injection mold.

[0004] The injection mold of this application includes a first mold core and a second mold core. The first mold core includes a first mold body, a first insert and a second insert, each of which is independently and elastically connected to the first mold body. The second mold core is disposed opposite to the first mold core along a first direction. The second mold core includes a second mold body, a first insert and a second insert. The second mold body and the first mold body are engaged with each other in the mold-closed state. The first insert and the second insert are disposed at intervals along a second direction on the second mold body. The first direction intersects the second direction, and in the mold-closed state, the first insert abuts against the first insert, and the second insert abuts against the second insert.

[0005] In the injection mold of this application embodiment, the first and second inserts are independently and elastically connected to the first mold body. This eliminates dimensional deviations between the first and second inserts when the first and second mold cores are closed, ensuring a tight fit between the first insert and the first insert, as well as between the second insert and the second insert. This prevents gaps that could lead to excess adhesive and also provides a buffer in case of excessive clamping during mold closing, preventing damage to the first and / or second inserts. Furthermore, because the injection mold eliminates dimensional deviations between the first and second inserts, it is also suitable for producing products with significant variations in insert dimensions.

[0006] In some embodiments, the first mold core includes a first elastic member and a second elastic member, the first insert is elastically connected to the first mold body through the first elastic member, and the second insert is elastically connected to the first mold body through the second elastic member. Both the first elastic member and the second elastic member are configured to generate elastic deformation along a first direction.

[0007] Thus, by generating elastic deformation along the first direction through the first elastic member and the second elastic member, when the first mold body and the second mold body are joined, the first insert and the second insert can respectively adapt to the dimensions of the first insert and the second insert in the first direction, ensuring fit and avoiding glue overflow.

[0008] In some embodiments, the first mold body is provided with a first mounting groove, and the first insert, the second insert, the first elastic member and the second elastic member are installed together in the first mounting groove. The second mold body is provided with a second mounting groove opposite to the first mounting groove, and the first insert and the second insert are placed in the second mounting groove. In the mold-closed state, the bottom surface of the second mounting groove, together with the first insert, the second insert, and at least one of the first and second inserts, forms a cavity for the injection molding material to fill and cool in the cavity.

[0009] Thus, the bottom surface of the second mounting groove, together with the first insert, the second insert, the first insert and the second insert, together form a cavity, and the injection molding material fills and cools in the cavity, so that the injection molded product can be joined with the first insert and the second insert, and gaps are not likely to appear around the cavity, which can avoid glue overflow.

[0010] In some embodiments, the first insert and the second insert are ring-shaped structures, the first insert is sleeved on the outside of the second insert, the first insert is sleeved on the outside of the second insert, and the first elastic member is correspondingly disposed on the periphery of the second elastic member.

[0011] Thus, by setting the first insert around the second insert, sleeved on the second insert, and setting the first elastic member around the second elastic member, it is possible to produce injection molded products that sequentially include the first insert, the plastic part, and the second insert from the outer periphery to the center, and the structure of each component is compact.

[0012] In some embodiments, the first mold body further includes a first pad block disposed at the bottom of the first mounting groove, and the first elastic member abuts against the first insert and the first pad block on both sides along the first direction.

[0013] Thus, the first elastic member abuts against the first insert and the first pad on both sides along the first direction, and the first pad is set at the bottom of the first mounting groove, thereby restricting the position of the first elastic member and the object of force application, ensuring that the first insert can fit the first insert through the deformation of the first elastic member, and preventing glue overflow on the outside.

[0014] In some embodiments, the first mold body further includes a fastener and a second pad, the second insert is provided with a receiving groove, the fastener is fixed in the receiving groove, the first pad is provided with a third mounting groove, the second pad is disposed in the third mounting groove, and the second pad extends at least partially into the receiving groove, the fastener passes through the second pad and is fixed in the receiving groove, and the second elastic member is sleeved on the fastener and its two ends along the first direction respectively abut against the bottom surface of the receiving groove and the second pad.

[0015] Thus, the fastener passes through the second pad and is fixed in the receiving groove. The second pad extends at least partially into the receiving groove. The second elastic member is sleeved on the fastener and its two ends along the first direction abut against the bottom surface of the receiving groove and the second pad, respectively. This restricts the position of the second elastic member and the object of force application, ensuring that the second insert is in contact with the second insert through the elastic action of the second elastic member, and preventing glue overflow on the inner side.

[0016] In some embodiments, along a first direction, the end of the second insert away from the second insert protrudes relative to the first insert, and the first elastic member is sleeved on the end of the second insert that protrudes from the end of the first insert.

[0017] Thus, by fitting the first elastic member onto the end of the second insert that protrudes from the first insert, it serves to fix the position.

[0018] In some embodiments, the second mold core further includes a runner insert, which is embedded in the second mold body. A second mounting groove is formed on the runner insert, and a runner is provided inside the runner insert. The runner communicates with the cavity and is used to flow injection molding material.

[0019] In this way, the injection molding material can enter the cavity through the runner, fill and cool in the cavity, and form the plastic part of the injection molded product.

[0020] In some embodiments, the bottom surface of the second mounting groove is provided with a glue injection port, which is located between the first insert and the second insert. The glue injection port is connected to the flow channel and is used to inject the injection molding material into the cavity.

[0021] In this way, the injection material can enter the cavity directly from the injection port and then join with the first and second inserts after cooling.

[0022] In some embodiments, a positioning post is provided at the center of the second mounting groove, the positioning post protruding from the bottom surface of the second mounting groove, and the second insert is fitted onto the positioning post; a positioning groove is formed on the side of the second insert facing the second mold body, and in the mold closed state, the positioning post is at least partially inserted into the positioning groove.

[0023] In this way, the positioning pins and positioning slots work together to help with quick positioning during mold closing and to ensure that the first mold body and the second mold body are not prone to relative displacement when the mold is closed.

[0024] Additional aspects and advantages of this application 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 this application. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein: Figure 1 This is a schematic diagram of the structure of the injection mold according to the embodiments of this application; Figure 2 This is a schematic diagram of the injection mold according to the embodiments of this application from a top view. Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of the injection mold along the AA direction; Figure 4 yes Figure 3 An enlarged schematic diagram of some structures in an injection mold; Figure 5 This is an exploded view of a portion of the structure in the first mold core according to the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the second mold core according to the embodiment of this application.

[0026] Explanation of reference numerals in the attached figures: 100 - Injection mold, 10 - First mold core, 11 - First mold body, 111 - First mounting slot, 1111 - First stepped surface, 112 - First pad, 113 - Fastener, 114 - Second pad, 1141 - Through hole, 115 - Third mounting slot, 12 - First insert, 121 - First part, 122 - Second part, 123 - Second stepped surface, 13 - Second insert, 131 - ... Three parts, 132-Fourth part, 133-Receiving groove, 134-Positioning groove, 14-First elastic component, 141-Butterfly spring, 15-Second elastic component, 151-Spring, 20-Second mold core, 21-Second mold body, 22-First insert, 23-Second insert, 24-Second mounting groove, 25-Runner insert, 251-Runner, 252-Injection port, 253-Positioning pin, 30-Cavity; 200 - Injection molded products; 201 - Plastic parts. Detailed Implementation

[0027] The embodiments of this application 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 application, and should not be construed as limiting this application.

[0028] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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 application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0032] Please see Figures 1-3 The injection mold 100 of this application includes a first mold core 10 and a second mold core 20. The first mold core 10 includes a first mold body 11, a first insert 12 and a second insert 13. The first insert 12 and the second insert 13 are each independently and elastically connected to the first mold body 11. The second mold core 20 is disposed opposite to the first mold core 10 along a first direction (X direction as shown in the figure). The second mold core 20 includes a second mold body 21, a first insert 22 and a second insert 23. The second mold body 21 and the first mold body 11 are engaged with each other in the mold-closed state. The first insert 22 and the second insert 23 are disposed at intervals on the second mold body 21 along a second direction (Y direction as shown in the figure). The first direction and the second direction intersect. In the mold-closed state, the first insert 12 abuts against the first insert 22 and the second insert 13 abuts against the second insert 23.

[0033] In the injection mold 100 of this application embodiment, the first insert 12 and the second insert 13 are each independently and elastically connected to the first mold body 11. This eliminates dimensional deviations between the first insert 22 and the second insert 23 when the first mold core 10 and the second mold core 20 are closed, ensuring a tight fit between the first insert 12 and the first insert 22, and between the second insert 13 and the second insert 23. This prevents gaps that could lead to excess adhesive and also provides a buffer in case of excessive clamping during mold closing, preventing damage to the first insert 22 and / or the second insert 23. Furthermore, since the injection mold 100 eliminates dimensional deviations between the first insert 22 and the second insert 23, it is also suitable for producing products with significant variations in insert dimensions.

[0034] Specifically, the injection mold 100 is used to mold and manufacture the injection molded product 200. In the parting state, the first mold core 10 and the second mold core 20 are separated from each other; in the mold closing state, the first mold core 10 and the second mold core 20 are engaged with each other and can be locked together. In the mold closing state, molten injection material is injected between the first mold core 10 and the second mold core 20 and engages with the first insert 22 and the second insert 23, ultimately forming the injection molded product 200 including the plastic part 201, the first insert 22 and the second insert 23.

[0035] One of the first mold core 10 and the second mold core 20 can move relative to the other in a first direction to separate the interlocking first mold core 10 and the second mold core 20, thereby changing the injection mold 100 from a closed state to a open state, or to make the separated first mold core 10 and the second mold core 20 interlock, thereby changing the injection mold 100 from an open state to a closed state.

[0036] In the first direction, both the first insert 12 and the second insert 13 are disposed on the side of the first mold body 11 facing the second mold body 21. In the mold closed state, the surface of the first insert 12 facing the second mold body 21 is in close contact with the surface of the first insert 22 facing the first mold body 11, and the surface of the second insert 13 facing the second mold body 21 is in close contact with the surface of the second insert 23 facing the first mold body 11.

[0037] The first insert 12 is elastically connected to the first mold body 11, and the second insert 13 is elastically connected to the first mold body 11. The elastic connection between the first insert 12 and the first mold body 11 and the elastic connection between the second insert 13 and the first mold body 11 do not interfere with each other.

[0038] If there is a dimensional difference between the first insert 22 and the second insert 23 in the first direction (including but not limited to design dimensional differences and large actual tolerances), during the mold closing process, the first mold body 11 and the second mold body 21 approach each other along the second direction. When the first insert 12 contacts the first insert 22, the pressure of the first insert 12 against the first insert 22 and the distance between the first insert 12 and the first mold body 11 can be adjusted through the elastic connection between the first insert 12 and the first insert 22. Similarly, the second insert 13 can also adaptively adjust the pressure of the second insert 23 against the second insert 23 and the distance between the second mold body 21, thereby ensuring that in the mold closing state, the first insert 12 and the second insert 13 can respectively adapt to the dimensions of the first insert 22 and the second insert 23 in the first direction, and the first insert 22 and the second insert 23 are not easily broken or deformed due to extrusion.

[0039] In the second direction, the first insert 22 and the second insert 23 are spaced apart and opposite to each other. The first insert 12 can be tightly engaged with the second insert 13. The engagement surfaces of the first insert 12 and the second insert 13 can be aligned with one edge of the first insert 22 or the second insert 23.

[0040] The second direction can be orthogonal to the first direction. During the production of injection molded product 200 by injection mold 100, the first direction can be horizontal and the second direction can be vertical. During the assembly and transfer of injection mold 100, the first direction can also be vertical and the second direction can be horizontal, or the first direction can be inclined relative to the horizontal and vertical directions, and the second direction can also be inclined accordingly to the horizontal and vertical directions.

[0041] The first insert 22 and the second insert 23 are made of materials different from the injection molding material, such as metal, ceramic, glass, etc.

[0042] Please see Figure 3 and Figure 4 In some embodiments, the first mold core 10 includes a first elastic member 14 and a second elastic member 15. The first insert 12 is elastically connected to the first mold body 11 through the first elastic member 14, and the second insert 13 is elastically connected to the first mold body 11 through the second elastic member 15. Both the first elastic member 14 and the second elastic member 15 are configured to generate elastic deformation along a first direction.

[0043] Thus, by generating elastic deformation along the first direction through the first elastic member 14 and the second elastic member 15, when the first mold body 11 and the second mold body 21 are joined, the first insert 12 and the second insert 13 can respectively adapt to the dimensions of the first insert 22 and the second insert 23 in the first direction, ensuring fit and avoiding glue overflow.

[0044] Specifically, the first elastic member 14 and the second elastic member 15 can be the same or different types of elastic components.

[0045] Optionally, the first elastic member 14 abuts against the first mold body 11 and the first insert 12 on its two opposite sides along the first direction, and the second elastic member 15 includes two opposite ends along the first direction, which are fixedly connected to the first mold body 11 and the second insert 13 respectively.

[0046] The first elastic member 14 is subjected to the forces of the first insert 12 and the first mold body 11, and generates or recovers elastic deformation along the first direction. The second elastic member 15 is subjected to the forces of the second insert 13 and the first mold body 11, and generates or recovers elastic deformation along the first direction. That is to say, the interaction between the second insert 13 and the first mold body 11 will not interfere with the deformation state of the first elastic member 14, and the interaction between the first insert 12 and the first mold body 11 will not interfere with the deformation state of the second elastic member 15.

[0047] In the mold-separation state, the first insert 12 separates from the first insert 22, and the second insert 13 separates from the second insert 23. The first elastic member 14 and the second elastic member 15 are defined to be in a relaxed state after restoring elastic deformation.

[0048] In the mold-closed state, the first insert 12 and the first insert 22 are in pressure contact, and the second insert 13 and the second insert 23 are in pressure contact. The locking force between the second mold core 20 and the first mold core 10 is transmitted through the links of "second mold body 21 - first insert 22 - first insert 12 - first elastic member 14 - first mold body 11" and "second mold body 21 - second insert 23 - second insert 13 - second elastic member 15 - first mold body 11". The first elastic member 14 and the second elastic member 15 are compressed and undergo compressive elastic deformation. Since the first elastic member 14 and the second elastic member 15 can adjust the degree of deformation according to the pressure they receive in the first direction, even if there is a dimensional deviation between the first insert 22 and the second insert 23, it can still be ensured that the first insert 12 and the second insert 13 can fit tightly against the corresponding inserts without excessive compression.

[0049] Please see Figure 3 , Figure 4 and Figure 6 In some embodiments, the first mold body 11 is provided with a first mounting groove 111, and the first insert 12, the second insert 13, the first elastic member 14 and the second elastic member 15 are installed together in the first mounting groove 111. The second mold body 21 is provided with a second mounting groove 24 opposite to the first mounting groove 111, and the first insert 22 and the second insert 23 are placed in the second mounting groove 24.

[0050] In the mold-closed state, the bottom surface of the second mounting groove 24, together with at least one of the first insert 22, the second insert 23, the first insert 12, and the second insert 13, forms a cavity 30 for the injection molding material to fill and cool in the cavity 30.

[0051] Thus, the bottom surface of the second mounting groove 24, together with the first insert 22, the second insert 23, the first insert 12, and the second insert 13, forms a cavity 30. The injection molding material is filled and cooled in the cavity 30, so that the injection molded product 200 can be joined with the first insert 22 and the second insert 23. Furthermore, gaps are less likely to appear around the cavity 30, thus avoiding glue overflow.

[0052] Specifically, the depth directions of the first mounting groove 111 and the second mounting groove 24 are both parallel to the first direction. The opening of the first mounting groove 111 is formed on the surface of the first mold body 11 facing the second mold body 21, and the second mounting groove 24 is formed on the side of the second mold body 21 facing the first mold body 11.

[0053] The first insert 22 and the second insert 23 abut against the bottom surface of the second mounting groove 24 on the side facing away from the first mold body 11. The side of the first insert 22 and the second insert 23 facing the first mold can be flush with the same side surface of the second mold body 21.

[0054] Optionally, the first mounting groove 111 is a circular groove, and the outer peripheral surface of the first insert 12 abuts against the groove wall of the first mounting groove 111. Further, the groove wall of the first mounting groove 111 may be formed with a first stepped surface 1111, and the first insert 12 includes a first part 121 and a second part 122 with different outer diameters. The first part 121 with a larger outer diameter abuts against the first stepped surface 1111 along a first direction, thereby playing a limiting role.

[0055] Optionally, the first insert 12 is a hollow structure, and the second insert 13 can be inserted into the hollow portion of the first insert 12. The inner circumferential surface of the first insert 12 can be formed with a second stepped surface 123, and the second insert 13 includes a third part 131 and a fourth part 132 with different outer diameters. The third part 131 with a larger outer diameter can abut against the second stepped surface 123 along the first direction, thereby limiting the relative position of the first insert 12 and the second insert 13 in the first direction.

[0056] Please see Figure 4 and Figure 6 A positioning post 253 is provided at the center of the second mounting groove 24, and the positioning post 253 protrudes from the bottom surface of the second mounting groove 24. The second insert 23 is fitted onto the positioning post 253. A positioning groove 134 is formed on the side of the second insert 13 facing the second mold body 21. In the mold closing state, the positioning post 253 is at least partially inserted into the positioning groove 134.

[0057] Thus, the positioning pin 253 and the positioning groove 134 cooperate to facilitate quick positioning during mold closing and ensure that the first mold core 10 and the second mold core 20 are not prone to relative displacement in the mold closing state.

[0058] Optionally, the outer contour of the second mounting groove 24 is approximately circular, and the positioning post 253 passes through the center of the outer contour of the second mounting groove 24. Both the first insert 22 and the second insert 23 are annular structures. The first insert 22 is disposed on the outer periphery of the second insert 23 and is radially spaced from the second insert 23. The outer periphery of the first insert 22 is in contact with the sidewall of the second mounting groove 24.

[0059] Optionally, the first insert 22 and the second insert 23 are flat ring structures, and the second mounting groove 24 is a shallow groove.

[0060] The injection molding material can be injected into the cavity 30 in a molten state. After filling and cooling in the cavity 30, the plastic part 201 of the injection molded product 200 is formed. The plastic part 201 is engaged with the first insert 22 and the second insert 23 on opposite sides in the second direction, respectively.

[0061] Optionally, the number of the first mounting slot 111 and the second mounting slot 24 can be one, two or more, and the number of the first mounting slot 111 and the second mounting slot 24 corresponds one-to-one.

[0062] Please see Figure 3 , Figure 4 and Figure 6 In some embodiments, the first insert 22 and the second insert 23 are ring-shaped structures. The first insert 22 is sleeved on the outside of the second insert 23, the first insert 12 is sleeved on the outside of the second insert 13, and the first elastic member 14 is correspondingly disposed on the periphery of the second elastic member 15.

[0063] Thus, by setting the first insert 22 around the second insert 23, sleeved the first insert 12 around the second insert 13, and set the first elastic member 14 around the second elastic member 15, it is possible to produce an injection molded product 200 that includes the first insert 22, the plastic part 201, and the second insert 23 sequentially from the outer periphery to the center, and the structure of each component is compact.

[0064] Specifically, the first insert 22 and the second insert 23 can be coaxial, and the outer contour shapes of the first insert 22 and the second insert 23 can be the same, similar, or different. For example, the outer contour shapes of the first insert 22 and the second insert 23 are both approximately circular.

[0065] To ensure that the first insert 22 and the first insert 12, and the second insert 23 and the second insert 13 fit together in a corresponding manner, the first insert 12 and the second insert 13 are also coaxial in structure, and in the mold closed state, the center of the first insert 22 and the second insert 23 is coaxial with the center of the first insert 12 and the second insert 13.

[0066] Please see Figures 3-5 In some embodiments, the first mold body 11 further includes a first pad 112, which is disposed at the bottom of the first mounting groove 111, and the first elastic member 14 abuts against the first insert 12 and the first pad 112 on both sides along the first direction.

[0067] Thus, the first elastic member 14 abuts against the first insert 12 and the first pad 112 on both sides along the first direction. The first pad 112 is located at the bottom of the first mounting groove 111, thereby restricting the position and force application of the first elastic member 14, ensuring that the first insert 12 can fit the first insert 22 through the deformation of the first elastic member 14, and preventing glue overflow on the outside.

[0068] Specifically, the bottom of the first mounting groove 111 is located in the first mounting groove 111 at a position away from the second mold body 21 along the first direction. The first pad 112 can press against the groove wall of the first mounting groove 111 to fix the position of the first pad 112 in the first mounting groove 111. During the process of the first elastic member 14 generating and recovering elastic deformation, the first elastic member 14 shortens or lengthens along the first direction, thereby causing the position of the first insert 12 in the first mounting groove 111 to float along the first direction. This allows the first insert 12 to adapt to the dimensional deviation of the first insert 22 along the first direction, ensuring a good fit.

[0069] Optionally, when the first elastic member 14 is compressed and deformed, the first insert 12 moves closer to the second mold body 21 along the first direction. The extreme position of the first insert 12 approaching the second mold body 21 can be the position where the first part 121 abuts against the first step surface 1111.

[0070] Please see Figure 3 and Figure 4 In some embodiments, the first mold body 11 further includes a fastener 113 and a second pad 114. The second insert 13 is provided with a receiving groove 133. The first pad 112 is provided with a third mounting groove 115. The second pad 114 is disposed in the third mounting groove 115 and extends at least partially into the receiving groove 133. The fastener 113 passes through the second pad 114 and is fixed in the receiving groove 133. The second elastic member 15 is sleeved on the fastener 113 and its two ends along the first direction respectively abut against the bottom surface of the receiving groove 133 and the second pad 114.

[0071] Thus, the fastener 113 passes through the second pad 114 and is fixed in the receiving groove 133. The second pad 114 extends at least partially into the receiving groove 133. The second elastic member 15 is sleeved on the fastener 113 and its two ends along the first direction abut against the bottom surface of the receiving groove 133 and the second pad 114, thereby restricting the position and force application of the second elastic member 15, ensuring that the second insert 13 fits against the second insert 23 through the elastic action of the second elastic member 15, and preventing glue overflow on the inner side.

[0072] Specifically, the first pad 112 may be an annular structure, and the third mounting groove 115 extends through the first pad 112 along the first direction.

[0073] The fastener 113 may be a screw, and the fastener 113 is threaded into a portion of the groove wall of the receiving groove 133 so that the fastener 113 is vertically arranged relative to the bottom surface of the receiving groove 133. The second elastic member 15 is located in the receiving groove 133 and is sleeved on the portion of the fastener 113 that extends into the receiving groove 133.

[0074] The portion of the second pad 114 extending into the receiving groove 133 may be positioned between the nut of the fastener 113 and the end of the second elastic member 15. The second pad 114 may also partially extend into the third mounting groove 115 and abut against the upper end of the second insert 13 within the third mounting groove 115. The radial dimension of the second pad 114 in the receiving groove 133 may be smaller than its radial dimension in the third mounting groove 133.

[0075] The second pad 114 has a through hole 1141 extending along the first direction, through which the fastener 113 extends into the receiving groove 133. The through hole 1141 may be formed at the center of the second pad 114.

[0076] Optionally, the end face of the second pad 114 facing away from the second insert 13 is flush with the end face of the fastener 113 and the first pad 112 on the same side.

[0077] During the process of the second elastic member 15 generating and recovering elastic deformation, the second elastic member 15 shortens or lengthens along the first direction, thereby causing the second insert 13 to float in the first direction, so that the second insert 13 can adapt to the dimensional deviation of the second insert 23 along the first direction, ensuring a good fit.

[0078] Optionally, the extreme position of the second insert 13 near the second mold body 21 is the position where the third part 131 abuts against the second step surface 123 on the first insert 12.

[0079] Please see Figure 4In some embodiments, along the first direction, the end of the second insert 13 away from the second insert 23 protrudes relative to the first insert 12, and the first elastic member 14 is sleeved on the end of the second insert 13 that protrudes from the end of the first insert 12.

[0080] Thus, the first elastic member 14 is sleeved on the end of the second insert 13 that protrudes from the first insert 12, thereby fixing its position.

[0081] Specifically, the first elastic member 14 abuts against the first pad 112 and the first insert 12 at both ends along the first direction, the second insert 13 is nested inside the first insert 12, and the first elastic member 14 is sleeved on the second insert 13. Thus, the first insert 12 and the first pad 112 together restrict the radial position of the second insert 13 and the axial (first direction) position of the first elastic member 14. The second insert 13 can also restrict the radial position of the first elastic member 14.

[0082] The surface of the first pad 112 facing away from the first elastic member 14 may be higher than the surface of the second insert 13 on the same side, and the second pad 114 may be at the same height as the first pad 112.

[0083] Please see Figure 3 and Figure 4 In some embodiments, the second mold core 20 further includes a runner 25, which is embedded in the second mold body 21. A second mounting groove 24 is formed on the runner 25, and a runner 251 is provided in the runner 25. The runner 251 communicates with the cavity 30 and is used to flow injection molding material.

[0084] In this way, the injection molding material can enter the cavity 30 through the runner 251, and the injection molding material fills and cools in the cavity 30 to form the plastic part 201 in the injection molded product 200.

[0085] Specifically, the runner inlet 25 is located on the side of the second mold body 21 facing the first mold body 11, and the opening of the second mounting groove 24 faces the first mounting groove 111 along the first direction. The runner 251 can be a cold runner 251 or a hot runner 251.

[0086] Please see Figure 3 and Figure 4 In some embodiments, the bottom surface of the second mounting groove 24 is provided with a glue injection port 252, which is located between the first insert 22 and the second insert 23. The glue injection port 252 is connected to the flow channel 251 and is used to inject the injection molding material into the cavity 30.

[0087] In this way, the injection material can enter the cavity 30 directly from the injection port 252 and, after cooling, engage with the first insert 22 and the second insert 23.

[0088] Specifically, the flow channel 251 is positioned to avoid the first insert 22 and the second insert 23. (Combined) Figure 3 and Figure 6 The runner 251 can be a cavity cast inside the runner inlet 25, or it can include a separately made pipe. The runner 251 can also extend into the second mold body 21, and the part of the runner 251 that communicates with the injection port 252 in the runner inlet 25 is the end of the runner 251.

[0089] Please refer to the following: Figure 4 and Figure 5 In some embodiments, the first elastic member 14 is a butterfly spring 141; and / or, the second elastic member 15 is a spring 151.

[0090] Thus, the first elastic member 14 can withstand a large load with small axial deformation, and the second elastic member 15 has a small radial dimension, thereby saving space in both the radial and axial directions of the elastic member.

[0091] Specifically, the butterfly spring 141 and the spring 151 can be coaxially arranged, and the axial direction of the butterfly spring 141 and the spring 151, which is also the direction in which elastic deformation occurs, is parallel to the first direction. Optionally, the radial direction of the butterfly spring 141 and the spring 151 is parallel to the second direction.

[0092] 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., refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this application. 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.

[0093] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An injection mold, characterized in that, include: The first mold core includes a first mold body, a first insert and a second insert, and the first insert and the second insert are each independently and elastically connected to the first mold body. The second mold core is disposed opposite to the first mold core along a first direction. The second mold core includes a second mold body, a first insert, and a second insert. The second mold body and the first mold body are engaged with each other in the mold-closed state. The first insert and the second insert are disposed at intervals along a second direction on the second mold body. Wherein, the first direction intersects with the second direction, and in the mold closing state, the first insert abuts against the first insert, and the second insert abuts against the second insert.

2. The injection mold according to claim 1, characterized in that, The first mold core includes a first elastic member and a second elastic member. The first insert is elastically connected to the first mold body through the first elastic member, and the second insert is elastically connected to the first mold body through the second elastic member. Both the first elastic member and the second elastic member are configured to generate elastic deformation along the first direction.

3. The injection mold according to claim 2, characterized in that, The first mold body is provided with a first mounting groove, and the first insert, the second insert, the first elastic member and the second elastic member are installed together in the first mounting groove. The second mold body is provided with a second mounting groove opposite to the first mounting groove, and the first insert and the second insert are placed in the second mounting groove. In the mold-closed state, the bottom surface of the second mounting groove, together with the first insert, the second insert, and at least one of the first and second inserts, forms a cavity for the injection molding material to fill and cool in the cavity.

4. The injection mold according to claim 3, characterized in that, The first insert and the second insert are ring-shaped structures. The first insert is sleeved on the outside of the second insert, the first insert is sleeved on the outside of the second insert, and the first elastic member is correspondingly disposed on the periphery of the second elastic member.

5. The injection mold according to claim 4, characterized in that, The first mold body also includes a first pad, which is disposed at the bottom of the first mounting groove, and the first elastic member abuts against the first insert and the first pad on both sides along the first direction.

6. The injection mold according to claim 5, characterized in that, The first mold body also includes a fastener and a second pad. The second insert is provided with a receiving groove. The first pad is provided with a third mounting groove. The second pad is disposed in the third mounting groove and extends at least partially into the receiving groove. The fastener passes through the second pad and is fixed in the receiving groove. The second elastic member is sleeved on the fastener and its two ends along the first direction abut against the bottom surface of the receiving groove and the second pad, respectively.

7. The injection mold according to claim 4, characterized in that, Along the first direction, the end of the second insert away from the second insert protrudes relative to the first insert, and the first elastic member is sleeved on the end of the second insert that protrudes from the first insert.

8. The injection mold according to claim 3, characterized in that, The second mold core also includes a runner insert, which is embedded in the second mold body. The second mounting groove is formed on the runner insert, and a runner is provided inside the runner insert. The runner communicates with the cavity and is used to flow injection molding material.

9. The injection mold according to claim 8, characterized in that, The bottom surface of the second mounting groove is provided with a glue injection port, which is located between the first insert and the second insert. The glue injection port is connected to the flow channel and is used to inject the injection molding material into the cavity.

10. The injection mold according to claim 3, characterized in that, A positioning post is provided at the center of the second mounting groove, the positioning post protruding from the bottom surface of the second mounting groove, and the second insert is sleeved on the positioning post; a positioning groove is formed on the side of the second insert facing the second mold body, and in the mold closing state, the positioning post is at least partially inserted into the positioning groove.

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