Anti-displacement positioning structure and double-color injection mold with same

Abstract

The invention relates to the technical field of injection molds, and discloses an anti-displacement positioning structure and a double-color injection mold with the same. The anti-displacement positioning structure comprises a sliding block assembly, a driving assembly and a mechanical locking assembly, the sliding block assembly comprises paired first sliding blocks to position the left outer side and the right outer side of the product, the driving assembly drives the first sliding blocks to slide in a reciprocating mode in the horizontal direction, and the mechanical locking assembly locks the positions of the first sliding blocks. The positioning structure is embedded into a first-color cavity of the double-color injection mold, a first-color product can be stably positioned, and it is guaranteed that the first-color product does not have displacement deviation relative to the first-color cavity; no displacement deviation exists between the first-color product and the second-color cavity, so that stable positioning can be maintained in the transfer process of the first-color product and the subsequent double-color forming process, the defects of pressing damage, flash, color mixing and the like of the double-color product are reduced, and the forming quality and the production efficiency of the double-color product are improved.

Description

Technical Field

[0001] This invention relates to the field of automotive two-color injection mold technology, specifically to an anti-displacement positioning structure for products with flat structures and a two-color injection mold including the structure. Background Technology

[0002] In the automotive parts manufacturing industry, two-color injection molds have become key equipment for improving the appearance and performance of products due to their ability to achieve two-color composite and functional integration. Currently, the industry's general technical solution for positioning the first color product in a two-color mold is to set an integrated positioning inclined column on the mold core and to set an internal extraction shaft and internal extraction insert driven by a hydraulic cylinder on the side of the front mold plate, in an attempt to achieve the positioning of the first color product.

[0003] However, in practical applications, this solution has obvious technical limitations: its positioning components (mold core positioning inclined pillars and inner pull inserts) only serve as auxiliary limiting components and do not participate in the formation of the first color cavity. They cannot form a tight fit with the cavity during the product molding stage, and when the product cools and shrinks, gaps are easily generated with the positioning components. At the same time, this solution does not have a mechanical locking structure and only relies on the hydraulic cylinder to drive the inner pull shaft to maintain the positioning state. Under the action of mold rotation or the second color injection pressure, the inner pull insert is prone to retreat, further widening the gap.

[0004] Crucially, for the design of "flat two-color products", due to the low height, small support area and lack of self-positioning structures such as deep cavities or snap-fits, the mold core positioning inclined column can only achieve local point positioning and cannot cover the sides and ends of the product. The gaps caused by shrinkage will directly cause the product to shift during transportation and secondary molding, ultimately leading to defects such as crushing, flash, and color mixing during the second color molding, which cannot meet the industrial mass production requirements of flat two-color products. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an anti-displacement positioning structure and an injection mold having the structure. Through the mold structure, the problem of displacement of products after the first color is formed can be solved.

[0006] To solve the above-mentioned technical problems, the present invention discloses an anti-displacement positioning structure and a slider assembly, which includes a pair of first sliders. The two first sliders are used to position the left outer side and the right outer side of the product, and the two first sliders are respectively located on the left outer side and the right outer side of the product. A driving component is used to drive the first slider to slide back and forth horizontally so that the two first sliders move closer to or further away from each other; The mechanical locking assembly is used to lock the position of the two first sliders when the two first sliders are positioned on the left and right outer sides of the product.

[0007] In some optional embodiments, the first slider has a positioning surface on the side facing the product that is adapted to the side profile of the product. The positioning surface is a plane or an arc surface with the same curvature as the side of the product, and the length of the positioning surface is greater than the length of the side of the product.

[0008] In some optional embodiments, the driving assembly includes a first hydraulic cylinder for driving the first slider to slide and arranged in a vertical direction, a first guide member is provided between the piston rod of the first hydraulic cylinder and the first slider, and the first hydraulic cylinder pushes the first slider to slide back and forth in a horizontal direction through the first guide member; the mechanical locking assembly is provided on both sides of the first guide member.

[0009] In some optional embodiments, the top surface of the first guide member is provided with a groove, and the end of the piston rod of the first cylinder is engaged in the groove so that the first guide member can slide horizontally relative to the piston rod of the first cylinder; the first slider is provided with a first guide groove for the first guide member to be inserted, and the bottom of the first guide groove is a first inclined surface; the lower side of the first guide member is formed with a second inclined surface complementary to the first inclined surface; the groove wall of the first guide groove is provided with an inclined first guide groove, and the lower part of the first guide member extends outward to form an inclined first guide portion, which is inserted into the first guide groove in the assembled state.

[0010] In some alternative embodiments, the slider assembly further includes a pair of second sliders for positioning the left inner side and right inner side of the product, and the second sliders are spaced apart from the first slider along the thickness direction of the product.

[0011] In some optional embodiments, the drive assembly further includes a second hydraulic cylinder arranged laterally for driving the second slider to slide horizontally. A second guide and a third guide are provided between the piston rod of the second hydraulic cylinder and the second slider. The second guide is movably connected to the end of the piston rod of the second hydraulic cylinder. The top of the third guide has a second guide groove, and the bottom of the second guide groove is a third inclined surface. The second guide extends toward the second guide groove and inserts into the second guide groove. The first protrusion has a fourth inclined surface complementary to the third inclined surface. The left and right sides of the first protrusion are both provided with inclined second guide grooves. The groove wall of the second guide groove extends inward to insert into the second guide groove. The second guide is inclined. The second slider has a third guide groove for the third guide to be inserted. The bottom of the third guide groove is a fifth inclined surface. The lower side of the third guide has a sixth inclined surface complementary to the fifth inclined surface. The front and rear sides of the third guide have inclined third guide grooves. The groove wall of the third guide groove extends inward to insert into the third guide groove. The third guide is inclined.

[0012] In some optional embodiments, the mechanical locking assembly includes a locking block and a drive member, which drives the locking block to reciprocate in the vertical direction to lock or unlock the first slider. The drive member is one of the following in some optional embodiments: an elastic element, a hydraulic cylinder, a pneumatic cylinder, or an electromagnetic push rod.

[0013] In some optional embodiments, a locking groove is provided on the first slider, and a first wedge-shaped surface is formed on the inner wall of the locking groove; a second wedge-shaped surface is formed at the end of the locking block that is inserted into the locking groove, and the second wedge-shaped surface is complementary and adapted to the first wedge-shaped surface.

[0014] This application also provides a two-color injection mold, including a mold body and the anti-displacement positioning structure; The mold body is provided with a first color cavity and a second color cavity. The first color cavity is used to form the first color product of the two-color product, and the second color cavity is used to form the second color product of the two-color product. The slider assembly of the anti-displacement positioning structure is embedded in the first color cavity of the mold body so that the slider assembly is seamlessly connected to the first color cavity, and serves as a component of the first color cavity when the first color product is formed, and is used to position the first color product formed in the first color cavity; The anti-displacement positioning structure, together with the clamping and positioning of the first color product, is transferred from the first color cavity to the second color cavity. The slider assembly is embedded in the second color cavity so that the slider assembly is seamlessly spliced ​​with the second color cavity. It also serves as a component of the second color cavity during the molding of the second color product and is used to position the two-color product molded in the second color cavity.

[0015] In some optional embodiments, a rotating mechanism is included, which is used to rotate the anti-displacement positioning structure and the first color product positioned thereon together from the first color cavity to the second color cavity; During the process of rotating and changing colors of the mold body, the first and second sliders of the anti-displacement positioning structure maintain the positioning state of the first color product.

[0016] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: (1) The anti-displacement positioning structure uses a pair of first sliders located on the left and right outer sides of the product to form a precise large-area positioning of the left and right outer sides of the product. The first sliders are driven to slide back and forth in the horizontal direction with the drive component so that the two first sliders move closer or further away from each other. This can flexibly adapt to the positioning requirements of products of different sizes. At the same time, when the two first sliders are positioning the left and right outer sides of the product, the mechanical locking component can reliably lock the position of the first sliders to avoid displacement of the product sliders due to external force during the positioning process, thus ensuring the positioning stability of the product.

[0017] (2) When this anti-displacement positioning structure is applied to a two-color injection mold, its slider assembly is embedded in the first-color cavity of the mold body and achieves seamless splicing. It can work together with the first-color cavity during the molding of the first-color product to ensure molding accuracy, and can also effectively position the first-color product molded in the first-color cavity. This structural design is particularly suitable for the production process of two-color injection molding. Since the anti-displacement positioning structure and the first-color product it positions are transferred from the first-color cavity to the second-color cavity together, it ensures that the first-color product will not have a displacement deviation relative to the first-color cavity. In this way, when the anti-displacement positioning structure and the first-color product it positions are transferred to the second-color cavity together, there will be no displacement deviation between the first-color product and the second-color cavity. Thus, it can maintain stable positioning during the transfer of the first-color product to the second-color cavity and subsequent molding process, reduce product damage, flash, color mixing and other defects caused by the positioning deviation between the first-color product and the second-color cavity, improve the molding quality and production efficiency of two-color products, and meet the requirements of industrial mass production for positioning reliability and stability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the anti-displacement positioning structure in the embodiment; Figure 2 This is an exploded view of the anti-displacement positioning structure in the embodiment; Figure 3 This is an exploded view of the slider assembly structure in the embodiment; Figure 4 This is an exploded view of the slider assembly structure in the embodiment; Figure 5 This is a schematic diagram of the locking block in the embodiment. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, mechanism, product, or end that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or ends.

[0022] 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 the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] This invention discloses a specific embodiment of an anti-displacement positioning structure, please see... Figures 1 to 5 The anti-displacement positioning structure includes a slider assembly, a drive assembly, and a mechanical locking assembly.

[0024] In this embodiment, combined with Figures 1 to 3 The slider assembly includes a pair of first sliders 21, which are used to position the left and right outer sides of the product 100, respectively. The side of the first slider 21 facing the product 100 has a positioning surface adapted to the side profile of the product 100. This positioning surface can be a plane or an arc surface with the same curvature as the side of the product 100, and the length of the positioning surface is greater than the length of the side of the product 100. This design increases the contact area with the product 100 and improves positioning stability.

[0025] Please see Figure 3The driving assembly is used to drive the first slider 21 to reciprocate horizontally. It includes a first hydraulic cylinder 41 arranged vertically, with a first guide member 51 between the piston rod of the first hydraulic cylinder 41 and the first slider 21. The first guide member 51 converts the vertical driving force of the first hydraulic cylinder 41 into a force that drives the first slider 21 to slide horizontally. The top surface of the first guide member 51 has a groove 50 with a convex cross-sectional shape. The piston rod end of the first hydraulic cylinder 41 has a retaining member with an outer diameter larger than the outer diameter of the piston rod, so that the piston rod end of the first hydraulic cylinder 41 is retained in the groove 50, allowing the first guide member 51 to slide horizontally relative to the piston rod of the first hydraulic cylinder 41. The horizontal direction is perpendicular to the axial direction of the piston rod of the first hydraulic cylinder 41. The first slider 21 has a first guide groove 71 for the first guide member 51 to insert into. The bottom of the first guide groove 71 is a first inclined surface 81. The lower side of 1 has a second inclined surface 82 that is complementary to the first inclined surface 81. Through the cooperation of the inclined surfaces, when the first oil cylinder 41 drives the first guide member 51 to move vertically, it can drive the first slider 21 to slide horizontally. At the same time, the groove wall of the first guide groove 71 is provided with an inclined first guide groove 91, and the lower part of the first guide member 51 extends outward with an inclined first guide part 101. In the assembled state, the first guide part 101 is inserted into the first guide groove 91. The cooperation between the first guide part 101 and the first guide groove 91 can further ensure the smoothness and accuracy of the sliding of the first slider 21.

[0026] In some embodiments, mechanical locking components are provided on both sides of the first guide member 51 to ensure that the locking force on the first slider 21 is relatively balanced, and to ensure that the positioning of the two first sliders 21 on the left and right outer sides of the product 100 is more stable and reliable.

[0027] Please see Figure 1 , Figure 2 and Figure 4 The slider assembly also includes a pair of second sliders 22. The two second sliders 22 are used to position the left inner side and right inner side of the product 100. The second sliders 22 and the first slider 21 are spaced vertically along the thickness direction of the product 100. By simultaneously positioning the inner and outer sides, a circumferential constraint on the product 100 can be formed, preventing the product 100 from tilting under force. The drive assembly also includes a laterally arranged second hydraulic cylinder 42 for driving the second sliders 22 to slide horizontally in the front-back direction. See [link / reference needed] Figure 4As shown, a second guide 52 and a third guide 53 are provided between the piston rod of the second cylinder 42 and the second slider 22. The second guide 52 is movably connected to the end of the piston rod of the second cylinder 42. The movable connection between the two is the same as the movable connection between the first guide 51 and the piston rod of the first cylinder 41, and is also achieved through the groove 50. The second cylinder 42 pushes the second guide 52 to move horizontally. The top of the third guide member 53 is provided with a second guide groove 72, the bottom of the second guide groove 72 is a third inclined surface 83, the second guide member 52 extends toward the second guide groove 72 and inserts into the second guide groove 72 with a first protrusion 201, the first protrusion 201 is provided with a fourth inclined surface 84 that is complementary to the third inclined surface 83; the left and right sides of the first protrusion 201 are both provided with inclined second guide grooves 92, the groove wall of the second guide groove 72 extends inward and inserts into the second guide groove 92 with a second guide part 102, the second guide part 102 is inclined. Through the cooperation of these structures, the driving force of the second hydraulic cylinder 42 can be stably transmitted to the second slider 22 through the second guide member 52 and the third guide member 53. Furthermore, the second slider 22 has a third guide groove 73 for the insertion of the third guide member 53. The bottom of the third guide groove 73 is a fifth inclined surface 85, and the lower side of the third guide member 53 has a sixth inclined surface 86 that is complementary to the fifth inclined surface 85. The front and rear sides of the third guide member 53 are both provided with inclined third guide grooves 93. The groove wall of the third guide groove 73 extends inward to form a third guide portion 103 that is inserted into the third guide groove 93. The third guide portion 103 is inclined to further enhance the sliding stability of the second slider 22. In other embodiments, the piston rod of the second cylinder 42 can also be directly bolted to the second slider 22, eliminating some guide members, which is suitable for scenarios with slightly lower requirements for sliding accuracy.

[0028] Combination Figure 3 and Figure 5 The mechanical locking assembly includes a locking block 6 and a driving component. The driving component drives the locking block 6 to reciprocate vertically to lock or unlock the first slider 21. The driving component can be an elastic element, a hydraulic cylinder, a pneumatic cylinder, or an electromagnetic push rod. See [link to documentation]. Figure 2 and Figure 3 As shown, a locking groove 60 is provided on the first slider 21, and a first wedge-shaped surface 61 is formed on the inner wall of the locking groove 60. A second wedge-shaped surface 62 is formed at the end of the locking block 6 inserted into the locking groove 60. The second wedge-shaped surface 62 and the first wedge-shaped surface 61 are complementary and adapted to each other. By utilizing the self-locking characteristic of the wedge-shaped surface, a reliable constraint force can be provided when locking, preventing the first slider 21 from moving under the action of external force.

[0029] This invention discloses a two-color injection mold with the above-mentioned anti-displacement positioning structure, please see... Figure 1The mold includes a mold body (not shown), within which are a first color cavity and a second color cavity. The first color cavity is used to form the first color portion of the two-color product, and the second color cavity is used to form the second color portion of the two-color product. A slider assembly of the anti-displacement positioning structure is embedded and installed seamlessly within the first color cavity of the mold body. During the molding of the first color product 100, it serves as part of the first color cavity, ensuring molding accuracy and positioning the first color product 100 formed within the first color cavity. The two-color injection mold is equipped with a rotating mechanism that drives the anti-displacement positioning structure and the positioned first color product 100 to rotate. This rotating mechanism is existing technology and will not be described in detail here. During the color change process of the two-color injection mold, that is, when the rotating mechanism transfers the anti-displacement positioning structure and the first-color product it positions together from the first-color cavity to the second-color cavity, the first slider 21 and the second slider 22 of the anti-displacement positioning structure always maintain the positioning of the first-color product 100, ensuring that the first-color product 100 will not have any displacement deviation relative to the first-color cavity. In this way, when the anti-displacement positioning structure and the first-color product 100 it positions are transferred together to the second-color cavity, there will be no displacement deviation between the first-color product 100 and the second-color cavity. Thus, the first-color product 100 can be kept stably positioned during the transfer of the first-color product 100 to the second-color cavity and during the subsequent molding of the second-color product. This reduces defects such as product damage, flash, and color mixing caused by positioning deviation between the first-color product and the second-color cavity, improves the molding quality and production efficiency of the two-color product, and meets the requirements of industrial mass production for positioning reliability and stability.

[0030] The anti-displacement positioning structure and the beneficial effects of the two-color injection mold are significant. The paired first slider 21 and second slider 22 provide comprehensive positioning of the product 100 from both the inside and outside. Combined with the precise drive of the drive assembly and the reliable locking of the mechanical locking assembly, slider displacement caused by external forces during positioning is effectively prevented, ensuring the positioning stability of the product 100 and the molding cavity. When this structure is applied to a two-color injection mold, the seamless splicing design of the slider assembly and the first-color cavity not only works in conjunction with the first-color cavity during the molding of the first-color product 100 to ensure molding accuracy, but also effectively positions the first-color product 100 molded within the first-color cavity. Since the anti-displacement positioning structure and the first-color product 100 it positions are transferred together from the first-color cavity to the second-color cavity, it can be ensured that the first-color product 100 will not have any displacement deviation relative to the first-color cavity. In this way, when the anti-displacement positioning structure and the first-color product 100 it positions are transferred together to the second-color cavity, there will be no displacement deviation between the first-color product 100 and the second-color cavity. Therefore, the first-color product 100 can be kept stably positioned during the transfer of the first-color product 100 to the second-color cavity and during the subsequent molding process of the second-color product. This reduces defects such as crushing, flash, and color mixing in two-color products caused by positioning deviation between the first-color product 100 and the second-color cavity, significantly improves the molding quality and production efficiency of two-color products, and meets the requirements of industrial mass production for positioning reliability and stability.

[0031] The process of using the two-color injection mold of the present invention is as follows: Before the first color product 100 is formed, the driving component drives the first slider 21 and the second slider 22 to move, so that the positioning surface of the first slider 21 is in contact with the left outer side and the right outer side of the product 100, and the second slider 22 is in contact with the left inner side and the right inner side of the product 100. At this time, the driving component of the mechanical locking component drives the locking block 6 to descend, so that the second wedge surface 62 of the locking block 6 cooperates with the first wedge surface 61 of the locking groove 60 of the first slider 21 to lock the position of the first slider 21; then the raw material is injected into the first color cavity, and the first slider 21 and the second slider 22 participate in the molding as part of the cavity, ensuring the dimensional accuracy of the first color product 100. After the first-color product 100 is formed, the rotating mechanism drives the anti-displacement positioning structure and the first-color product 100 it positions to rotate, transferring the anti-displacement positioning structure and the first-color product 100 from the first-color cavity to the second-color cavity. During this process, the first slider 21 and the second slider 22 maintain the positioning of the first-color product 100, and the mechanical locking assembly continuously locks it to prevent the product 100 from shifting. After reaching the second-color cavity, the slider assembly is embedded and installed in the second-color cavity to achieve a seamless splicing between the slider assembly and the second-color cavity. It also serves as a component of the second-color cavity during the second-color product forming process and is used to position the two-color product formed within the second-color cavity. Raw material is injected into the second-color cavity for second-color forming. During the forming process, the anti-displacement positioning structure continues to constrain and position the first-color product 100, ensuring precise bonding of the two colors. After the second-color product is formed, the mechanical locking assembly unlocks, and the driving assembly drives the first slider 21 and the second slider 22 away from the formed two-color product. The mold opens, completing the forming of the two-color product.

[0032] In other embodiments, if the driving component of the mechanical locking assembly is an elastic element, the locking block 6 can be reset and locked by the spring force, which is suitable for scenarios where the locking force requirement is small; if an electromagnetic push rod is used, faster locking and unlocking can be achieved, improving the production cycle. The connection between the first guide 51 and the piston rod of the first hydraulic cylinder 41 can also be replaced by a hinge connection, which can also achieve force direction conversion, but the sliding smoothness is slightly inferior to the groove 50 holding structure.

[0033] Finally, it should be noted that the anti-displacement positioning structure and injection mold having the structure disclosed in the embodiments of the present invention are merely preferred embodiments of the present invention and are only used to illustrate the technical solutions of the present invention, not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some technical features in some optional embodiments. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A displacement-prevention positioning structure, characterized in that, include: A slider assembly includes a pair of first sliders, the two first sliders being used to position the left outer side and the right outer side of the product, the two first sliders being located on the left outer side and the right outer side of the product, respectively; A driving component is used to drive the first slider to slide back and forth horizontally so that the two first sliders move closer to or further away from each other; The mechanical locking assembly is used to lock the position of the two first sliders when the two first sliders are positioned on the left and right outer sides of the product.

2. The anti-displacement positioning structure according to claim 1, characterized in that, The first slider has a positioning surface on the side facing the product that matches the contour of the product side. The positioning surface is either a plane or an arc surface with the same curvature as the product side, and the length of the positioning surface is greater than the length of the product side.

3. The anti-displacement positioning structure according to claim 1 or 2, characterized in that, The driving assembly includes a first hydraulic cylinder for driving the first slider to slide and arranged in a vertical direction. A first guide is provided between the piston rod of the first hydraulic cylinder and the first slider. The first hydraulic cylinder pushes the first slider to slide back and forth in a horizontal direction through the first guide. The mechanical locking assembly is provided on both sides of the first guide.

4. The anti-displacement positioning structure according to claim 3, characterized in that, The top surface of the first guide member is provided with a groove, and the end of the piston rod of the first oil cylinder is engaged in the groove so that the first guide member can slide in the horizontal direction relative to the piston rod of the first oil cylinder. The first slider has a first guide groove for the insertion of the first guide member, and the bottom of the first guide groove is a first inclined surface; The lower side of the first guide member has a second inclined surface that is complementary to the first inclined surface; The first guide groove has an inclined first guide groove on its groove wall, and the lower part of the first guide extends outward to form an inclined first guide part. In the assembled state, the first guide part is inserted into the first guide groove.

5. A displacement prevention and positioning structure according to claim 1 or 2, characterized in that, The slider assembly also includes a pair of second sliders, which are used to position the left inner side and right inner side of the product, and the second sliders and the first slider are spaced vertically apart along the thickness direction of the product.

6. The anti-displacement positioning structure according to claim 5, characterized in that, The driving assembly further includes a second hydraulic cylinder for driving the second slider to slide horizontally and arranged laterally, wherein a second guide and a third guide are provided between the piston rod of the second hydraulic cylinder and the second slider; The second guide member is movably connected to the end of the piston rod of the second hydraulic cylinder; The top of the third guide member is provided with a second guide groove, and the bottom of the second guide groove is a third inclined surface; The second guide extends toward the second guide groove and inserts a first protrusion into the second guide groove. The first protrusion has a fourth inclined surface that is complementary to the third inclined surface. The first protrusion has an inclined second guide groove on both its left and right sides. The groove wall of the second guide groove extends inward to form a second guide part that is inserted into the second guide groove. The second guide part is inclined. The second slider has a third guide groove for the insertion of the third guide member, and the bottom of the third guide groove is a fifth inclined surface; The lower side of the third guide member has a sixth inclined surface that is complementary to the fifth inclined surface; The third guide member has an inclined third guide groove on both its front and rear sides. The groove wall of the third guide groove extends inward to form a third guide part that is inserted into the third guide groove. The third guide part is inclined.

7. The anti-displacement positioning structure according to claim 1, characterized in that, The mechanical locking assembly includes a locking block and a driving member. The driving member is used to drive the locking block to reciprocate in the vertical direction to lock or unlock the first slider. The driving member is one of the following in some optional embodiments: an elastic element, a hydraulic cylinder, a pneumatic cylinder, or an electromagnetic push rod.

8. The anti-displacement positioning structure according to claim 7, characterized in that, The first slider has a locking groove, and the inner wall of the locking groove has a first wedge-shaped surface; the end of the locking block that is inserted into the locking groove has a second wedge-shaped surface, and the second wedge-shaped surface is complementary to and adapted to the first wedge-shaped surface.

9. A two-color injection mold, characterized in that, Includes the mold body and the anti-displacement positioning structure as described in any one of claims 1 to 8; The mold body is provided with a first color cavity and a second color cavity. The first color cavity is used to form the first color product of the two-color product, and the second color cavity is used to form the second color product of the two-color product. The slider assembly of the anti-displacement positioning structure is embedded in the first color cavity of the mold body so that the slider assembly is seamlessly connected to the first color cavity, and serves as a component of the first color cavity when the first color product is formed, and is used to position the first color product formed in the first color cavity; The anti-displacement positioning structure, together with the clamping and positioning of the first color product, is transferred from the first color cavity to the second color cavity. The slider assembly is embedded in the second color cavity so that the slider assembly is seamlessly spliced ​​with the second color cavity. It also serves as a component of the second color cavity during the molding of the second color product and is used to position the two-color product molded in the second color cavity.

10. A two-color injection mold according to claim 9, comprising a rotating mechanism, the rotating mechanism being used to rotate the anti-displacement positioning structure and the first-color product positioned thereon together from the first-color cavity to the second-color cavity; During the process of rotating and changing colors of the mold body, the first and second sliders of the anti-displacement positioning structure maintain the positioning state of the first color product.

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