Gluing mechanism and injection mold

Abstract

This application discloses a sealing mechanism and an injection mold. The sealing mechanism includes a base, a sealing assembly, and a linkage assembly. The base includes a bearing surface. The sealing assembly is movably disposed on the side of the base facing the bearing surface, and has a first sealing surface and a second sealing surface. The linkage assembly includes a first pushing member and a second pushing member. The first pushing member is used to move the sealing assembly along a first direction, thereby causing the first and second sealing surfaces to abut against the part to be injected. The second pushing member is used to drive the sealing assembly to move the sealing assembly along a second direction, thereby causing the first sealing surface, the second sealing surface, and the part to be injected to jointly form an injection cavity. The linkage assembly enables the sealing assembly to be moved to the area where the part to be injected forms the injection cavity, that is, the sealing boundary formed by the first and second sealing surfaces and the part to be injected in the non-injection port area of ​​the injection cavity, which can prevent the injection material from overflowing during injection.

Description

Technical Field

[0001] This application belongs to the field of molding technology, and specifically relates to a sealing mechanism and an injection mold. Background Technology

[0002] Injection molding technology is widely used, for example, in the production of electronic devices such as mobile phones and computers. Currently, injection molds are equipped with sealing components. When the part to be injection molded is being injected, the sealing components of the injection mold move to the position corresponding to the part to be injection molded. The sealing components seal the groove of the part to be injection molded, so that they together form an injection cavity. Then, the injection molding machine injects the injection molding material into the injection cavity. After the injection molding material cures and forms, the cured injection molding material combines with the part to be injection molded, thereby forming an injection molded integrated product.

[0003] However, the tolerances of each injection molded part are different. Due to the current limitations of the sealing mechanism structure, the sealing components are prone to positional displacement during movement, which can cause the injection material to overflow from the injection cavity or the plastic to be damaged. Utility Model Content

[0004] In view of the above, it is necessary to provide a sealing mechanism and an injection mold to improve the technical problem of the sealing component being misaligned with the injection molded part during injection molding, resulting in the overflow of injection material in the injection cavity.

[0005] Embodiments of this application provide a sealing mechanism, including a base, a sealing assembly, and a linkage assembly. The base includes a bearing surface configured to support a part to be injection molded. The sealing assembly is movably disposed on the side of the base facing the bearing surface, and has a first sealing surface and a second sealing surface. The linkage assembly includes a first pushing member and a second pushing member. The first pushing member is used to drive the sealing assembly to move the sealing assembly in a first direction, thereby causing the first and second sealing surfaces to abut against the part to be injection molded. The second pushing member is used to drive the sealing assembly to move the sealing assembly in a second direction, thereby causing the first sealing surface, the second sealing surface, and the part to be injection molded to together form an injection cavity.

[0006] In this application, by driving the first and second pushers toward the bearing surface, the sealing assembly can move along a first or second direction under the pushing of the first and second pushers until the second sealing surface abuts against the side wall of the part to be injection molded. This allows the first and second sealing surfaces of the sealing assembly to form an injection cavity together with the part to be injection molded. The injection cavity can accommodate the injection material and mold the desired product. By adjusting the position of the sealing assembly through the linkage component, the sealing assembly can be moved to the area where the part to be injection molded forms the injection cavity, i.e., the sealing boundary formed by the first and second sealing surfaces and the part to be injection molded in the non-injection port area of ​​the injection cavity. This prevents the injection material from overflowing during injection. Furthermore, the sealing assembly can move along the first / second direction under the pushing of the first and second pushers. Moving the sealing assembly in two different directions avoids the possibility of damaging the plastic due to movement in only one direction, and also reduces or avoids damage to the plastic.

[0007] In some embodiments, the first pushing member includes a first inclined surface, and the second pushing member includes a second inclined surface. Both the first and second inclined surfaces are inclined relative to the bearing surface. When the first and second pushing members move toward the bearing surface, the first inclined surface engages with the sealing assembly to cause the sealing assembly to move away from the first pushing member in a first direction, and the second inclined surface engages with the sealing assembly to cause the sealing assembly to move away from the second pushing member in a second direction.

[0008] In some embodiments, the sealing assembly includes a slide and a sealing member. A first sealing surface and a second sealing surface are both disposed on the sealing member. The slide is movably disposed on the side of the base facing the bearing surface. The slide has a receiving cavity, in which the sealing member is partially disposed and movable relative to the slide in a first direction. The receiving cavity can accommodate at least a portion of the first pushing member. The sealing member is driven to cooperate with the first pushing member. When the first pushing member moves toward the bearing surface, the sealing member moves relative to the slide in the first direction. The slide is driven to cooperate with the second pushing member. When the second pushing member moves toward the bearing surface, the slide drives the sealing member to move in a second direction.

[0009] In some embodiments, the sealing member is provided with a first inclined groove, and the first abutting member is provided with a protrusion that extends into the first inclined groove so that the first inclined surface abuts against the protrusion.

[0010] In some embodiments, the slide is provided with a second inclined groove, which can accommodate at least part of the second push member to be inserted. Along the first direction, the two inner walls of the second inclined groove are provided on both sides of the second push member to stop the second push member from moving along the first direction.

[0011] In some embodiments, the sealing assembly includes two sealing elements that can respectively form an injection cavity with different positions of the part to be injection molded.

[0012] In some embodiments, the sealing mechanism further includes an elastic element and a cover plate, the elastic element being disposed between the cover plate and the linkage assembly, the cover plate being configured to close onto the base, and the elastic element causing the sealing assembly to elastically resist the part to be injection molded.

[0013] In some embodiments, the sealing mechanism further includes a limiting component disposed on the base and configured to clamp the part to be injection molded to position the part to be injection molded on the bearing surface.

[0014] In some embodiments, the direction in which the first and second pushers move toward the bearing surface is defined as the third direction; the limiting assembly includes multiple clamping members and multiple inclined rods, the inclined rods are connected to the linkage assembly so that the inclined rods can move along the third direction with the linkage assembly, the multiple clamping members are slidably disposed on the base, each inclined rod passes through a clamping member, the inclined rods are inclined and are configured to drive the clamping members to move closer to the injection molded part in the bearing surface when moving along the third direction toward the bearing surface.

[0015] Embodiments of this application also provide an injection mold, including a first mold base, a second mold base, and a sealing mechanism as described in any of the above embodiments. The base is constructed on the first mold base, and the linkage component is disposed on the second mold base. When the first mold base and the second mold base are closed, the linkage component applies a force to the sealing component so that the first sealing surface, the second sealing surface, and the part to be injection molded together form an injection cavity.

[0016] When the first mold base and the second mold base are closed, the sealing mechanism and the part to be injected cooperate to form a sealing boundary in the non-injection port area of ​​the injection cavity, which can prevent the injection material from overflowing or the part to be injected from being damaged during injection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the sealing mechanism in one embodiment of this application.

[0018] Figure 2 yes Figure 1 A schematic diagram of the central linkage component, the sealing component, and the part to be injected.

[0019] Figure 3 yes Figure 1 Exploded view of the central linkage component and the sealing component.

[0020] Figure 4 yes Figure 1 A schematic diagram of the sealing component and the first pushing component.

[0021] Figure 5 yes Figure 1 A schematic diagram of the center seal component.

[0022] Explanation of main component symbols

[0023] 100. Sealing mechanism; 10. Base; 11. Bearing surface; 111. Positioning pin; 12. Fixing component; 20. Sealing assembly; 21. Slide; 211. Second inclined groove; 212. Receiving cavity; 22. Sealing component; 221. First sealing surface; 222. Second sealing surface; 223. Third sealing surface; 224. First inclined groove; 30. Linkage assembly; 31. First pushing component; 311. First inclined surface; 312. Protrusion; 314. Supporting surface; 32. Second pushing component; 321. Second inclined surface; 33. Mounting plate; 40. Elastic component; 50. Limiting assembly; 51. Clamping component; 52. Inclined rod; 200. Part to be injected; 2001. Side wall; 2002. Groove; 2003. Limiting surface; X, First direction; Y, Second direction; Z, Third direction.

[0024] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0027] In the description of the embodiments of this application, the technical terms "first", "second", etc. are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0028] In the description of the embodiments of this application, the term "perpendicular" is used to describe the ideal state between two components. In actual production or use, two components may be in a state that is approximately perpendicular. The term "parallel" is used to describe the ideal state between two components. In actual production or use, two components may be in a state that is approximately parallel.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0030] Injection molding technology is widely used, for example, in the production of electronic devices such as mobile phones and computers. Currently, injection molds contain sealing components. When the part to be molded is being injected, the sealing component of the injection mold moves to a position corresponding to the part, sealing the groove of the part to form an injection cavity. Then, the injection molding machine injects molding material into the cavity. After the molding material cures, it bonds with the part to form a one-piece injection molded product. However, the tolerances of each part vary. Due to the limitations of the current sealing mechanism structure, the sealing component is prone to positional misalignment during movement, causing the molding material to overflow or the plastic to be damaged.

[0031] Embodiments of this application provide a sealing mechanism, including a base, a sealing assembly, and a linkage assembly. The base includes a bearing surface configured to support a part to be injection molded. The sealing assembly is movably disposed on the side of the base facing the bearing surface, and has a first sealing surface and a second sealing surface. The linkage assembly includes a first pushing member and a second pushing member. The first pushing member is used to drive the sealing assembly to move the sealing assembly in a first direction, thereby causing the first and second sealing surfaces to abut against the part to be injection molded. The second pushing member is used to drive the sealing assembly to move the sealing assembly in a second direction, thereby causing the first sealing surface, the second sealing surface, and the part to be injection molded to together form an injection cavity.

[0032] In this application, by driving the first and second pushers toward the bearing surface, the sealing assembly can move along a first or second direction under the pushing of the first and second pushers until the second sealing surface abuts against the side wall of the part to be injection molded. This allows the first and second sealing surfaces of the sealing assembly to form an injection cavity together with the part to be injection molded. The injection cavity can accommodate the injection material and mold the desired product. By adjusting the position of the sealing assembly through the linkage component, the sealing assembly can be moved to the area where the part to be injection molded forms the injection cavity, i.e., the sealing boundary formed by the first and second sealing surfaces and the part to be injection molded in the non-injection port area of ​​the injection cavity. This prevents the injection material from overflowing during injection. Furthermore, the sealing assembly can move along the first / second direction under the pushing of the first and second pushers. Moving the sealing assembly in two different directions avoids the possibility of damaging the plastic due to movement in only one direction, and also reduces or avoids damage to the plastic.

[0033] The embodiments of this application will be further described below with reference to the accompanying drawings. Unless otherwise specified, the various embodiments in this application can be combined with each other.

[0034] Please see Figure 1This application provides a sealing mechanism 100, including a base 10, a sealing assembly 20, and a linkage assembly 30. The base 10 includes a bearing surface 11, which is configured to bear a part 200 to be injection molded. The sealing assembly 20 is located on the side of the base 10 facing the bearing surface 11, and the sealing assembly 20 is movable relative to the base 10. The linkage assembly 30 is located on the side of the base 10 facing the bearing surface 11, and the linkage assembly 30 is driven by the sealing assembly 20 and configured to drive the sealing assembly 20 to move relative to the base 10, thereby adjusting the position of the sealing assembly 20 so that the sealing assembly 20 can be moved to the area where the part 200 to be injection molded forms an injection cavity.

[0035] Please see Figure 2 In some embodiments, the part to be injection molded 200 includes a groove 2002.

[0036] In embodiments of this application, the sealing assembly 20 includes a first sealing surface 221 and a second sealing surface 222 (see...). Figures 3 to 5 Under the influence of gravity, the first sealing surface 221 abuts against the upper surface of the part to be injection molded 200. When the linkage component 30 moves toward the bearing surface 11, the linkage component 30 drives the sealing component 20 to move along the first direction X and the second direction Y, so that the second sealing surface 222 abuts against the side wall 2001 of the part to be injection molded 200. The first sealing surface 221 and the second sealing surface 222 correspond to and close the groove 2002, so that the first sealing surface 221 and the second sealing surface 222 cooperate with the groove 2002 of the part to be injection molded 200 to form an injection cavity.

[0037] Please see Figure 2 In some embodiments, the sealing assembly 20 further includes a third sealing surface 223 (see Figure 223). Figures 3 to 5 The injection molded part 200 also includes a limiting surface 2003, which is perpendicular to the side wall 2001 and abuts against one side of the injection molded part 200. When the sealing assembly 20 moves along the second direction Y under the drive of the linkage assembly 30, the sealing assembly 20 moves closer to the limiting surface 2003 until the third sealing surface 223 abuts against the limiting surface 2003. The limiting surface 2003 positions the sealing assembly 20 as it moves along the second direction Y, so that the first sealing surface 221 and the second sealing surface 222 correspond and close the groove 2002.

[0038] Therefore, by adjusting the position of the sealing assembly 20 through the linkage component 30, the sealing assembly 20 can be moved to the area (groove 2002 area) where the injection cavity is formed by the part to be injection molded 200. This allows the first sealing surface 221 and the second sealing surface 222 to mate with the part to be injection molded 200 in the non-injection port area of ​​the injection cavity, forming a sealing boundary that prevents injection material from overflowing during injection. Furthermore, the sealing assembly 20 can move in two different directions (first direction X and second direction Y) under the action of the linkage component 30, avoiding the possibility of damaging the plastic due to movement in only one direction, and reducing or preventing damage to the plastic.

[0039] Understandably, different injection molded parts 200 have different tolerances. By driving the sealing component 20 to move in the first direction X and the second direction Y through the linkage component 30, the position of the sealing component 20 is adjusted. In this way, the sealing mechanism 100 can be unaffected by the tolerance of the injection molded parts 200 and can seal the injection molded parts 200 with different tolerances in place through the sealing component 20.

[0040] In the illustrated embodiment, the first direction X is perpendicular to the second direction Y. Both the first direction X and the second direction Y are parallel to the horizontal direction.

[0041] The injection molding machine injects molding material into the injection cavity. After the molding material solidifies and forms, it is bonded to the part to be injection molded 200 to form an integral injection-molded product. In some embodiments, the product is a metal frame for an electronic product.

[0042] Please combine Figure 2 and Figure 3 In the embodiments of this application, the linkage component 30 includes a first pushing member 31 and a second pushing member 32. When the first pushing member 31 moves toward the bearing surface 11, the first pushing member 31 pushes the sealing component 20 to move along the first direction X, so that the second sealing surface 222 abuts against the side wall 2001 of the part to be injection molded 200; when the second pushing member 32 moves toward the bearing surface 11, the second pushing member 32 pushes the sealing component 20 to move along the second direction Y, so that the third sealing surface 223 abuts against the limiting surface 2003. At this time, the first sealing surface 221 and the second sealing surface 222 correspond to the groove 2002 of the part to be injection molded 200, and the first sealing surface 221, the second sealing surface 222 and the part to be injection molded 200 together form an injection cavity.

[0043] By adjusting the position of the sealing component 20 in two mutually perpendicular directions using the linkage component 30, the sealing component 20 can be moved to the groove 2002 area. At this time, the first sealing surface 221, the second sealing surface 222 and the groove 2002 of the part to be injected 200 cooperate in the sealing boundary formed by the non-injection port area of ​​the injection cavity. This can prevent the injection material from overflowing from the contact point between the first sealing surface 221 or the second sealing surface 222 and the part to be injected 200 during injection. It can also prevent the sealing component 20 from being offset relative to the part to be injected 200, which would cause the sealing component 20 to damage the part to be injected.

[0044] In the illustrated embodiment, the non-injection port area of ​​the injection cavity refers to the upper surface and the inner surface of the sidewall 2001.

[0045] In some embodiments, the direction of movement of the first pusher 31 or the second pusher 32 toward the bearing surface 11 is defined as the third direction Z, which is perpendicular to the first direction X and the second direction Y, and the third direction Z is the height direction of the base 10.

[0046] In some embodiments, the upper surface of the sidewall 2001 of the injection molded part 200 is perpendicular to the inner surface of the sidewall 2001, and the limiting surface 2003 is perpendicular to both the upper surface and the inner surface of the sidewall 2001. The first sealing surface 221, the second sealing surface 222, and the third sealing surface 223 are perpendicular to each other so that the first sealing surface 221 and the second sealing surface 222 can be adapted to the injection molded part 200. In the illustrated embodiment, the first sealing surface 221 is a horizontal plane, and the second sealing surface 222 and the third sealing surface 223 are vertical planes.

[0047] In some embodiments, the sealing assembly 20 includes a slide 21 and a sealing element 22. See also... Figures 3 to 5 The first sealing surface 221, the second sealing surface 222 and the third sealing surface 223 are all provided on the sealing component 22.

[0048] Please combine Figure 2 and Figure 3 In some embodiments, the slide 21 has a receiving cavity 212, and the sealing member 22 is partially disposed within the receiving cavity 212. The sealing member 22 is movable relative to the slide 21 along a first direction X. The receiving cavity 212 can accommodate at least a portion of the first pushing member 31. The sealing member 22 and the first pushing member 31 are in a driving engagement. When the first pushing member 31 moves towards the bearing surface 11 along a third direction Z, a portion of the first pushing member 31 extends into the receiving cavity 212 and pushes the sealing member 22 relative to the slide 21 to move along the first direction X. The first sealing surface 221, the second sealing surface 222, and at least a portion of the third sealing surface 223 are located outside the receiving cavity 212.

[0049] The slide 21 is movably disposed on the side of the base 10 facing the bearing surface 11. The slide 21 is in a transmission engagement with the second pusher 32. When the second pusher 32 moves toward the bearing surface 11 in the third direction Z, the second pusher 32 pushes the slide 21, causing the sealing member 22 to move in the second direction Y.

[0050] During the process of the slide 21 driving the sealing component 22 to move along the second direction Y, the first pusher 31 is partially located in the receiving cavity 212, so that the sealing component 22 after moving along the second direction Y can move along the first direction X when the first pusher 31 is facing the bearing surface 11, preventing the first pusher 31 from disengaging from the sealing component 22 and thus being unable to drive the sealing component 22 to move.

[0051] In some embodiments, along the second direction Y, the size of the receiving cavity 212 is larger than the size of the first push member 31, so that the slide 21 can drive the sealing member 22 to move relative to the first push member 31.

[0052] Please combine Figure 3 and Figure 4 In some embodiments, the first pushing member 31 includes a first inclined surface 311. The second pushing member 32 includes a second inclined surface 321. Both the first inclined surface 311 and the second inclined surface 321 are inclined relative to the bearing surface 11. Approaching the bearing surface 11 along the third direction Z, the first inclined surface 311 is inclined toward the side away from the sealing member 22, and the second inclined surface 321 is inclined toward the side away from the slide block 21. Thus, approaching the bearing surface 11 along the third direction Z, the dimension of the first pushing member 31 gradually decreases along the first direction X, and the dimension of the second pushing member 32 gradually decreases along the second direction Y.

[0053] When the first pusher 31 and the second pusher 32 move toward the bearing surface 11 in the third direction Z, the first inclined surface 311 abuts against and pushes the sealing member 22 to move relative to the slide 21 in the first direction X away from the first pusher 31, and the second inclined surface 321 abuts against and pushes the slide 21 to drive the sealing member 22 to move in the second direction Y away from the second pusher 32.

[0054] The movement of the linkage component 30 along the third direction Z is converted into the movement of the sealing component 20 along the first direction X and the second direction Y by the surface that is inclined toward the bearing surface 11. The structure is simple and easy to operate.

[0055] Please combine Figure 3 and Figure 4 In some embodiments, the sealing member 22 is provided with a first inclined groove 224. The first abutting member 31 is provided with a protrusion 312. The protrusion 312 extends into the first inclined groove 224, so that the first inclined surface 311 abuts against the protrusion 312.

[0056] By inserting the protrusion 312 into the first inclined groove 224, the connection between the sealing component 22 and the first pushing component 31 in the first direction X is made more stable; it also enables the protrusion 312 to drive the sealing component 22 to reset in the first direction X when the first pushing component 31 moves away from the bearing surface 11 in the third direction Z, so that the first pushing component 31 can drive the sealing component 22 to move back and forth in the first direction X.

[0057] In some embodiments, the side of the sealing member 22 that contacts the first inclined surface 311 is an inclined surface, so that the first inclined surface 311 and the sealing member 22 can maintain sliding contact during the movement of the first pushing member 31 along the third direction Z.

[0058] In some embodiments, the side of the slide 21 that contacts the second inclined surface 321 is an inclined surface, so that the second inclined surface 321 and the slide 21 can slide in contact during the movement of the second pusher 32 along the third direction Z, thereby making the slide 21 more stable during the movement.

[0059] In some embodiments, the slide 21 is provided with a second inclined groove 211, which accommodates at least a portion of the second pusher 32, allowing the second pusher 32 to push the slide 21 to move along the second direction Y. Along the first direction X, the two inner walls of the second inclined groove 211 are located on either side of the second pusher 32, guiding the slide 21 to move relative to the second pusher 32 along the second direction Y and restricting movement of the slide 21 in the first direction X when it moves along the second direction Y.

[0060] Please see Figure 1 and Figure 2 In some embodiments, the sealing mechanism 100 further includes an elastic element 40 and a cover plate (not shown). The cover plate is configured to close onto the base 10. The elastic element 40 is disposed between the cover plate and the linkage assembly 30. When the cover plate closes onto the base 10, the elastic element 40 causes the sealing assembly 20 to elastically move until the sealing assembly 20 abuts against the part to be injection molded 200.

[0061] The elastic deformation of the elastic element 40 allows the sealing component 20 to move to the second sealing surface 222 abutting against the side wall 2001 and the third sealing surface 223 abutting against the limiting surface 2003 and then be fixed, so that the sealing component 22 and each injection molded part 200 with different tolerances can jointly form an injection cavity.

[0062] In some embodiments, an elastic element 40 is connected between the cover plate and the first pushing member 31, and an elastic element 40 is also connected between the cover plate and the second pushing member 32, so that both the first pushing member 31 and the second pushing member 32 can elastically push the sealing assembly 20 under the action of the elastic element 40.

[0063] In some embodiments, the first pusher 31 and the second pusher 32 are configured to be fixedly connected, so that the first pusher 31 and the second pusher 32 can move the same distance along the third direction Z at the same time, thereby causing the slide 21 and the sealing member 22 to move at the same time.

[0064] In some embodiments, the first pusher 31 and the second pusher 32 are configured to move relative to each other in a third direction Z, so that the first pusher 31 and the second pusher 32 do not interfere with each other, which is applicable to multiple injection molded parts 200 with different tolerances. For example, when the second pusher 32 pushes against the slide 21 until the third sealing surface 223 abuts against the limiting surface 2003, the first pusher 31 can push the sealing part 22 without affecting the second pusher 32, until the second sealing surface 222 abuts against the side wall 2001.

[0065] In some embodiments, the sealing assembly 20 includes two sealing elements 22 disposed within the same receiving cavity 212. The linkage assembly 30 includes two first pushing members 31, each first pushing member 31 pushing one sealing element 22 to move, and the two first pushing members 31 can simultaneously push two sealing elements 22, causing the two sealing elements 22 to move towards or away from each other.

[0066] Each sealing element 22 can abut against one side wall 2001 of the part to be injection molded 200, and together with the part to be injection molded 200, form an injection cavity. Two sealing elements 22 can simultaneously abut against two opposite side walls 2001 of the part to be injection molded 200, so that the two side walls 2001 of the part to be injection molded 200 can be injection molded at the same time.

[0067] In some embodiments, the sealing mechanism 100 includes two sets of sealing components 20, which can act on the same injection molded part 200. Each set of sealing components 20 is connected to a set of linkage components 30, and each receiving cavity 212 is provided with two sealing elements 22, that is, one injection molded part 200 can form four injection cavities with the two sets of sealing components 20.

[0068] In some embodiments, the bearing surface 11 is provided with a positioning pin 111 to position the part to be injection molded 200 in the bearing surface 11.

[0069] Please see Figure 1 In some embodiments, the sealing mechanism 100 further includes a limiting component 50. The limiting component 50 is disposed on the base 10 and configured to clamp the part to be injection molded 200 to position the part to be injection molded 200 on the bearing surface 11, thereby preventing the part to be injection molded 200 from moving on the bearing surface 11.

[0070] In some embodiments, the limiting assembly 50 includes a plurality of clamping members 51 and a plurality of inclined rods 52. The clamping members 51 are slidably disposed on the base 10. Each inclined rod 52 passes through a clamping member 51. The inclined rods 52 are inclined and configured to move the clamping members 51 closer to the injection-molded part 200 in the bearing surface 11 when moving along a third direction Z toward the bearing surface 11, so that the plurality of clamping members 51 move toward each other, thereby clamping the injection-molded part 200 in the bearing position.

[0071] In some embodiments, multiple inclined rods 52 are connected to the linkage assembly 30, so that the inclined rods 52 can move along the third direction Z with the linkage assembly 30. That is, during the process of the linkage module pushing the sealing assembly 20 to form the injection cavity, multiple inclined rods 52 drive multiple clamping members 51 to move closer to each other to clamp the part to be injected 200 in the bearing surface 11.

[0072] In some embodiments, along the first direction X, the inclined rods 52 located on both sides of the base 10 are connected to the linkage assembly 30 to clamp the opposite sides of the injection molded part 200 along the first direction X after the sealing assembly 20 and the injection molded part 200 form an injection cavity. Along the second direction Y, the inclined rods 52 located on both sides of the base 10 are connected to the lifting plate (not shown). The movement of the lifting plate along the third direction Z drives the inclined rods 52 to move, thereby causing the clamping members 51 connected to the inclined rods 52 to clamp the opposite sides of the injection molded part 200 along the second direction Y.

[0073] The clamping member 51 that moves along the first direction X and the clamping member 51 that moves along the second direction Y are controlled and driven respectively, so that multiple clamping members 51 can clamp injection molded parts 200 of different sizes.

[0074] In some embodiments, when the first push member 31 and the second push member 32 are configured to be fixedly connected, the first push member 31 and the second push member 32 are fixedly connected to a mounting plate 33, and the mounting plate 33 is fixedly connected to the diagonal rod 52, so that the first push member 31 and the second push member 32 drive the diagonal rod 52 to move together through the mounting plate 33.

[0075] In some embodiments, when the first pushing member 31 and the second pushing member 32 are configured to be movable relative to each other along the third direction Z, the first pushing member 31 and the second pushing member 32 are slidably connected to a mounting plate 33 along the third direction Z. The mounting plate 33 is fixedly connected to the diagonal rod 52. The first pushing member 31 or the second pushing member 32 is provided with a bearing surface 314. When the first pushing member 31 or the second pushing member 32 moves toward the bearing surface 11 along the third direction Z, the bearing surface 314 abuts against the mounting plate 33 and drives the mounting plate 33 to move toward the base 10, so that the first pushing member 31 or the second pushing member 32 can move together with the diagonal rod 52 through the mounting plate 33.

[0076] In some embodiments, the base 10 has two bearing surfaces 11, which are spaced apart along a first direction X. Each bearing surface 11 is configured to support one injection-molded part 200. The base 10 has a fixing member 12, which is located between the two bearing surfaces 11. The fixing member 12 is configured to abut against the injection-molded part 200 when multiple clamping members 51 are close to each other, so that the multiple clamping members 51 and the fixing member 12 jointly clamp two injection-molded parts 200.

[0077] Embodiments of this application also provide an injection mold, including a first mold base, a second mold base (not shown), and a sealing mechanism 100 as described in the previous embodiment. A base 10 is constructed on the first mold base, and can be disposed on or integrally formed with the first mold base. A linkage component 30 is disposed on the second mold base. When the first mold base and the second mold base are closed, the linkage component 30 moves toward the base 10, causing the first pusher 31 and the second pusher 32 to move downwards. The first pusher 31 drives the sealing component 22 to move along a first direction X until the second sealing surface 222 abuts against the side wall 2001 of the part to be injection molded 200. The second pusher 32 drives the slide 21 and the sealing component 22 to move along a second direction Y until the third sealing surface 223 abuts against the limiting surface 2003, thereby causing the first... The sealing surface 221, the second sealing surface 222, and the groove 2202 of the part to be injected together form the injection cavity. The sealing mechanism 100 and the part to be injected together form a sealing boundary in the non-injection port area of ​​the injection cavity, which can prevent the injection material from overflowing or the plastic from being crushed during injection. The injection molding machine injects the injection material into the injection cavity. After the injection material is cured and formed, it is combined with the part to be injected to form an injection molded product.

[0078] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the essential spirit and scope of this application fall within the scope of this application's disclosure.

Claims

1. A sealing mechanism, characterized in that, include: A base, including a bearing surface configured to support a part to be injection molded; A sealing assembly is movably disposed on the side of the base facing the bearing surface, the sealing assembly having a first sealing surface and a second sealing surface; The linkage component includes a first pushing member and a second pushing member. The first pushing member is used to drive the sealing component so that the sealing component moves along a first direction, thereby causing the first sealing surface and the second sealing surface to abut against the part to be injection molded. The second pusher is used to drive the sealing assembly so that the sealing assembly moves in the second direction, thereby so that the first sealing surface, the second sealing surface and the part to be injected together form an injection cavity.

2. The sealing mechanism as described in claim 1, characterized in that, The first pushing member includes a first inclined surface, and the second pushing member includes a second inclined surface. Both the first inclined surface and the second inclined surface are inclined relative to the bearing surface. When the first and second pushing members move toward the bearing surface, the first inclined surface engages with the sealing assembly to cause the sealing assembly to move away from the first pushing member along the first direction, and the second inclined surface engages with the sealing assembly to cause the sealing assembly to move away from the second pushing member along the second direction.

3. The sealing mechanism as described in claim 1 or 2, characterized in that, The sealing assembly includes a slide and a sealing element, wherein the first sealing surface and the second sealing surface are both disposed on the sealing element, and the slide is movably disposed on the side of the base facing the bearing surface; The slide block is provided with a receiving cavity, and the sealing member is partially disposed in the receiving cavity and can move relative to the slide block along the first direction. The receiving cavity can accommodate at least a portion of the first pushing member. The sealing member is in a transmission cooperation with the first pushing member. When the first pushing member moves toward the bearing surface, the sealing member moves relative to the slide block along the first direction. The slide block is driven to move along the second pushing member. When the second pushing member moves toward the bearing surface, the slide block drives the sealing member to move along the second direction.

4. The sealing mechanism as described in claim 3, characterized in that, The sealing component is provided with a first inclined groove, and the first pushing component is provided with a protrusion. The protrusion extends into the first inclined groove, so that the first inclined surface abuts against the protrusion.

5. The sealing mechanism as described in claim 3, characterized in that, The slide block is provided with a second inclined groove, which can accommodate at least part of the second pushing member. Along the first direction, the two inner walls of the second inclined groove are provided on both sides of the second pushing member to prevent the second pushing member from moving along the first direction.

6. The sealing mechanism as described in claim 3, characterized in that, The sealing assembly includes two sealing elements, which can respectively form an injection cavity with different positions of the part to be injection molded.

7. The sealing mechanism as described in claim 1, characterized in that, The sealing mechanism further includes an elastic element and a cover plate. The elastic element is disposed between the cover plate and the linkage assembly. The cover plate is configured to cover the base. The elastic element causes the sealing assembly to elastically abut against the part to be injection molded.

8. The sealing mechanism as described in claim 1, characterized in that, The sealing mechanism further includes a limiting component, which is disposed on the base and configured to clamp the part to be injection molded, so as to position the part to be injection molded on the bearing surface.

9. The sealing mechanism as described in claim 8, characterized in that, The direction in which the first and second pushing members move toward the bearing surface is defined as the third direction; The limiting component includes multiple clamping members and multiple inclined rods. The inclined rods are connected to the linkage component, allowing the inclined rods to move along the third direction with the linkage component. The multiple clamping members are slidably disposed on the base. Each inclined rod passes through one of the clamping members. The inclined rods are inclined and configured to move the clamping members closer to the injection molded part in the bearing surface when moving along the third direction toward the bearing surface.

10. An injection mold, characterized in that, The device includes a first mold base, a second mold base, and a sealing mechanism as described in any one of claims 1 to 9. The base is constructed on the first mold base, and the linkage component is disposed on the second mold base. When the first mold base and the second mold base are closed, the linkage component applies a force to the sealing component so that the first sealing surface, the second sealing surface, and the part to be injection molded together form the injection cavity.

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