A double-color injection mold for a wind deflector

Abstract

The application discloses a bicolour injection mould for a wind deflector and relates to the technical field of injection moulding, which comprises a lifting turntable, a first upper mould set, a second upper mould set and two lower mould sets, the two lower mould sets are arranged on the lifting turntable, recessed areas are formed in the top ends of the lower mould sets, the bottom end of the first upper mould set is provided with a first mould core, the bottom end of the second upper mould set is provided with a second mould core, when the first upper mould set and the second upper mould set are combined with the two lower mould sets, the first mould core is inserted into one recessed area and forms a main plate body cavity, the second mould core is inserted into the other recessed area and forms an outer package cavity, and the lifting turntable drives the two lower mould sets to move up and down and rotate. The application utilizes the lifting turntable to drive the two lower mould sets to move and switch, and the first upper mould set and the second upper mould set are fixed and immovable, so that the main plate body and the outer package can be automatically and continuously injection moulded, another main plate body can be injection moulded at the same time during the injection moulding of the outer package, and therefore, the production efficiency of the wind deflector can be greatly improved.

Description

Technical Field

[0001] This application relates to the field of injection molding technology, and in particular to a two-color injection mold for a windshield. Background Technology

[0002] An air conditioning deflector is a simple and practical accessory, mainly used to adjust the direction and intensity of the air conditioning vents. By using the deflector properly, you can effectively avoid the problem of cold air blowing directly on you and hot air dissipating, thus providing a more comfortable in-car environment for drivers and passengers in the hot summer and cold winter.

[0003] Currently, referring to Figure 1 The wind deflector consists of a main body 29 and an outer body 30. The main body 29 is a rigid structure made of PP material, while the outer body 30 is a flexible structure made of TPE material. The main body 29 and the outer body 30 are different colors, thus forming a two-color wind deflector. During the production of the wind deflector, the main body 29 is first injection molded in one set of molds. After injection molding, the main body 29 is removed from this set of molds, and then the main body 29 is placed into another set of molds to injection mold the outer body 30, thus completing the production of the two-color wind deflector. Both ends of the main body 29 along its length have a pivot 31. The ends of the pivot 31 have slots 32. One slot 32 has a circular cross-section, and the other slot 32 has a semi-circular cross-section. The wind deflector can be installed in a designated position through the slots 32 of the two pivots 31. A flat wall 33 is formed on the side wall of the rotating shaft 31 near the semi-circular slot 32. A limiting groove 34 is opened on the flat wall 33. The rotating shaft 31 is engaged with the limiting structure through the limiting groove 34, thereby limiting and fixing the installation of the wind deflector.

[0004] During the production of wind deflectors, the main body needs to be injection molded first. Only after the main body is formed can the outer casing be injection molded, which greatly reduces the production efficiency of wind deflectors. Summary of the Invention

[0005] To improve the production efficiency of wind deflectors, this application provides a two-color injection mold for wind deflectors.

[0006] The technical solution for a two-color injection mold for a windshield provided in this application is as follows:

[0007] A two-color injection mold for a windshield includes a lifting turntable, a first upper mold group, a second upper mold group, and two lower mold groups. The two lower mold groups have identical structures and are mounted on the lifting turntable. A recessed area is formed at the top of each lower mold group. The first and second upper mold groups are fixedly mounted. A first mold core is provided at the bottom of the first upper mold group, and a second mold core is provided at the bottom of the second upper mold group. When the first and second upper mold groups are combined with the two lower molds, the first mold core is inserted into one recessed area to form a main body cavity, and the second mold core is inserted into the other recessed area to form an outer body cavity. The lifting turntable drives the two lower mold groups to move up and down and rotate.

[0008] By adopting the above technical solution, during the production of the wind deflector, the first upper mold assembly combined with the lower mold assembly can injection mold the main body. After the main body is injection molded, the lifting turntable drives the two lower mold assemblies to move and switch. At this time, the lower mold assembly at the main body combined with the second upper mold assembly can injection mold the outer casing. The other lower mold assembly combined with the first upper mold assembly can injection mold another main body. After the other main body is injection molded, the finished wind deflector is removed. The lifting turntable then drives the two lower mold assemblies to move and switch, thus producing the next wind deflector. With this setup, the main body and the outer casing can be automatically and continuously injection molded. During the outer casing injection process, the other main body can be injection molded simultaneously, thereby greatly improving the production efficiency of the wind deflector.

[0009] Preferably, the lower module includes a base, a first template and a second template. The base is disposed on a lifting turntable, the first template is slidably disposed on the base, and the second template is slidably disposed on the base along a direction perpendicular to the sliding direction of the first template. The recessed area is formed between the base, the first template and the second template.

[0010] By adopting the above technical solution, the base, the first template, the second template and the first mold core form a main body cavity, and the base, the first template, the second template and the second mold core form an outer body cavity. After the outer body cavity is injection molded, the first template and the second template are moved to release the limit on the wind deflector, and the finished wind deflector can be taken out from the lower mold.

[0011] Preferably, there are two of each of the first mold core and the second mold core, and there are two of each of the first template and the second template, and the two first templates and the second template are symmetrically arranged around the center point of the base.

[0012] By adopting the above technical solution, two of each of the first mold core, second mold core, first template, and second template are provided, so that two wind deflectors can be produced in one injection molding operation, thereby further improving the production efficiency of wind deflectors.

[0013] Preferably, the first template includes a first plate, a first block, and a second block. The first plate is slidably disposed on the base along the length of the wind deflector. The base is provided with a first driving member for driving the first plate to move. The first block and the second block are respectively disposed at both ends of the first plate. The first block is used for injection molding of the semi-circular slot shaft of the wind deflector, and the second block is used for injection molding of the circular slot shaft of the wind deflector.

[0014] By adopting the above technical solution, after the outer body is injection molded, the first driving component drives the first block and the second block to move through the first plate, thereby separating the two rotating shafts of the wind deflector from the first block and the second block, making it easier to remove the finished wind deflector.

[0015] Preferably, a limiting block is slidably disposed within the first block, the end wall of the limiting block abutting against the planar wall of the rotating shaft, and a limiting protrusion is disposed on the end wall of the limiting block, the limiting protrusion being located within the limiting groove of the rotating shaft. A driving mechanism for driving the limiting block to move is disposed on the first plate. When the first upper module moves upward, the driving mechanism drives the limiting block to move along the direction perpendicular to the movement of the first plate, and the limiting block causes the limiting protrusion to disengage from the limiting groove of the rotating shaft. When the first upper module moves downward, the driving mechanism drives the limiting block to move and reset.

[0016] By adopting the above technical solution, the limiting block and limiting protrusion in the first block body cooperate with the first block body for injection molding, so that after the main body body is injection molded, a flat wall and a limiting groove are formed on the rotating shaft. After the main body body is injection molded, the first upper module moves upward. At this time, the drive mechanism drives the limiting block to move, so that the limiting protrusion separates from the limiting groove of the rotating shaft. Thus, after the outer body is injection molded, the first plate body can drive the first block body to move and separate from the rotating shaft of the baffle plate. When the baffle plate is removed, the lower module rotates to below the first upper module, and the first upper module descends to combine with the lower module. At this time, the drive mechanism drives the limiting block to move and reset, so that a flat wall and a limiting groove can be formed on the rotating shaft when the main body body is injection molded.

[0017] Preferably, the driving mechanism includes a driving block, a wedge block, and a driving rod. The driving rod is disposed at the bottom of the first upper module. The driving block is slidably disposed on the first plate along the moving direction of the first plate. A guide groove is provided in the driving block. The driving rod is slidably inserted into the guide groove and drives the driving block to move through the guide groove. The wedge block is disposed on the driving block and is slidably disposed in the first block along the moving direction of the vertical limiting block. The limiting block is slidably disposed on the wedge block.

[0018] By adopting the above technical solution, when the first upper module rises, it drives the drive rod to rise. The drive rod drives the drive block to move through the guide groove. The drive block drives the limit block to move through the wedge block, thereby enabling the limit protrusion on the limit block to separate from the limit groove of the rotating shaft. Similarly, when the first upper module falls, the drive rod is inserted into the guide groove, thereby enabling the limit block to move and reset through the drive block and the wedge block.

[0019] Preferably, the second template is slidably disposed on the base along the width direction of the windbreak plate, and a second driving member is embedded in the bottom of the base. The driving end of the second driving member is provided with a connecting block, and the connecting block is connected to the second template.

[0020] By adopting the above technical solution, after the outer body is injection molded, the second driving component drives the second template to move through the connecting block, thereby separating the wind deflector from the second template and making it easier to remove the finished wind deflector.

[0021] Preferably, a travel limit switch is provided on the side wall of the base below the two first templates and the second template, and the travel limit switch limits the movement of the first template and the second template.

[0022] By adopting the above technical solution, the travel limit switch is used to limit the movement of the first template and the second template, making the movement of the first template and the second template more precise.

[0023] Preferably, a sliding rod is slidably disposed within the limiting block along its own moving direction, the limiting protrusion is formed at the end of the sliding rod, a first sliding groove is formed within the limiting block, a retaining ring is fixedly disposed on the side wall of the sliding rod, the retaining ring is slidably disposed within the first sliding groove, a receiving groove is formed within the limiting block communicating with the first sliding groove, an elastic element is disposed within the receiving groove, the elastic element is located on the side of the retaining ring away from the wedge block and drives the sliding rod to move towards the wedge block; a second sliding groove for the sliding rod to move is formed on the side wall of the wedge block near the limiting block, a push ring is rotatably disposed within the wedge block, the push ring is semi-circular, a push plate is disposed at one end of the push ring, the push plate abuts against the end of the sliding rod away from the limiting protrusion, and the other end of the push ring abuts against the side wall of the limiting block near the wedge block and is located on the side of the sliding rod near the driving block.

[0024] By adopting the above technical solution, when the first upper and lower mold groups are molded, relative sliding occurs between the wedge block and the limiting block. When the side wall of the limiting block is not in contact with the end of the push ring away from the push plate, the limiting component in the receiving groove pushes the sliding rod to move towards the wedge block through the retaining ring. The sliding rod drives the limiting protrusion to move into the limiting block, thereby making it less likely for the limiting protrusion to interfere with the limiting groove of the main body's rotating shaft when the first block moves. When the first upper and lower mold groups are combined, relative sliding occurs between the wedge block and the limiting block. When the side wall of the limiting block is released from the end of the push ring away from the push plate, the limiting block pushes the push ring to rotate. The push ring pushes the sliding rod to move away from the wedge block through the push plate, so that the limiting protrusion is located on the end wall of the limiting block. With this configuration, when the drive rod and drive block wear out over a long period of time, the limiting protrusion can move into the limiting block when the first upper module and lower module open, so that when the first block moves, the limiting protrusion is less likely to interfere with the limiting groove of the main board body shaft.

[0025] Preferably, the push plate has a first guide wall formed on the side wall near the slide rod and on the side away from the drive block to facilitate the slide rod moving onto the push plate, and the push ring has a second guide wall formed on the side wall away from the push plate and on the side away from the drive block to facilitate the limit block pushing the push ring to rotate.

[0026] By adopting the above technical solution, during the assembly process of the first upper module and the lower module, the slide bar moves to the push plate through the first guide inclined wall, and the limiting block pushes the push ring to rotate through the second guide inclined wall, thereby facilitating the stable movement of the limiting protrusion to the end wall of the limiting block.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The lifting turntable drives the two lower modules to move and switch, while the first and second upper modules remain fixed, so that the main body and the outer body can be automatically and continuously injected. During the injection of the outer body, the other main body can be injected at the same time, which can greatly improve the production efficiency of the wind deflector.

[0029] 2. The limit blocks are moved by the drive mechanism. When the first upper module rises, it drives the two drive rods to rise. The two drive rods drive the two drive blocks to move through the guide groove. The two drive blocks drive the two limit blocks to move through the two wedge blocks. This allows the limit protrusions on the limit blocks to separate from the limit grooves of the rotating shaft, making it easier for the baffle to be removed from the lower module after injection molding.

[0030] 3. By using a sliding rod, elastic element, retaining ring, push ring and push plate to drive the movement of the limiting protrusion, when the driving rod and driving block wear out over a long period of time, the limiting protrusion can move into the limiting block when the first upper module and the lower module open, so that when the first block moves, the limiting protrusion is less likely to interfere with the limiting groove of the main body shaft. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the wind deflector in the background art of this application;

[0032] Figure 2 This is a frontal schematic diagram of the overall structure of the two-color injection mold for the windshield in Embodiment 1 of this application;

[0033] Figure 3 This is a reverse schematic diagram of the overall structure of the two-color injection mold for the windshield in Embodiment 1 of this application;

[0034] Figure 4 This is a schematic diagram of the lower module structure of the two-color injection mold for the windshield in Embodiment 1 of this application, to highlight the lower module.

[0035] Figure 5 This is a schematic diagram of the two-color injection mold for the windshield in Embodiment 1 of this application, highlighting a portion of the structure of the second driving component;

[0036] Figure 6 This is a partial structural diagram of the two-color injection mold for the windshield in Embodiment 1 of this application, highlighting the first template.

[0037] Figure 7 This is a partial structural cross-sectional view of the two-color injection mold for the windshield in Embodiment 1 of this application, highlighting the drive mechanism.

[0038] Figure 8 This is an exploded cross-sectional view of the two-color injection mold for the windshield in Embodiment 1 of this application, highlighting the limiting protrusions.

[0039] Figure 9 This is a structural schematic diagram of the two-color injection mold for the windshield in Embodiment 1 of this application, highlighting the moving state of the limiting block and the wedge block;

[0040] Figure 10 This is a partial structural cross-sectional view of the two-color injection mold for the windshield in Embodiment 2 of this application, highlighting the combined mold state;

[0041] Figure 11 This is a partial structural cross-sectional view of the two-color injection mold for the windshield in Embodiment 2 of this application, highlighting the open state of the module.

[0042] Reference numerals: 1. Lifting turntable; 2. First upper module; 3. Second upper module; 4. Lower module; 41. Base; 42. First template; 421. First plate; 422. First block; 423. Second block; 43. Second template; 5. Recessed area; 6. First mold core; 7. Second mold core; 8. Drive mechanism; 81. Drive block; 82. Wedge block; 83. Drive rod; 9. First drive component; 10. Second drive component; 11. Limiting block; 12. Limiting position 13. Protrusion; 14. Guide groove; 15. Connecting block; 16. Limit switch; 17. First guide rod; 18. Second guide rod; 19. Limit bolt; 20. Slide rod; 21. First slide groove; 22. Retaining ring; 23. Receiving groove; 24. Elastic element; 25. Second slide groove; 26. Push ring; 27. Push plate; 28. First guide wall; 29. ​​Second guide wall; 30. Main body; 31. Outer body; 32. Rotating shaft; 33. Slot; 34. Flat wall; 35. Limit groove. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 2-11 This application will be described in further detail.

[0044] This application discloses a two-color injection mold for a windshield.

[0045] Example 1

[0046] Reference Figure 2 A two-color injection mold for a windshield includes a lifting turntable 1, a first upper mold group 2, a second upper mold group 3, and two lower mold groups 4. The lifting turntable 1 is circular, and the two lower mold groups 4 are installed on the lifting turntable 1 at intervals. The first upper mold group 2 and the second upper mold group 3 are both fixed on the injection molding equipment, and the first upper mold group 2 and the second upper mold group 3 are respectively located directly above the two lower mold groups 4.

[0047] Reference Figure 2 and 3 The two lower mold groups 4 have identical structures, and each lower mold group 4 has two recessed areas 5. Two first mold cores 6 are embedded and fixedly installed on the bottom wall of the first upper mold group 2, and two second mold cores 7 are embedded and fixedly installed on the bottom wall of the second upper mold group 3. The two first mold cores 6 and the two mold cores 7 correspond one-to-one with the two recessed areas 5. The lifting turntable 1 drives the two lower mold groups 4 to rise synchronously, so that the first upper mold group 2, the second upper mold group 3 and the two lower mold groups 4 can be closed.

[0048] When the two sets of molds are assembled, the first upper mold 2 drives the first mold core 6 to insert into the recessed area 5 of the lower mold 4, so that the recessed area 5 forms a main body cavity. The second upper mold 3 drives the second mold core 7 to insert into the recessed area 5 of the other lower mold 4, so that the recessed area 5 forms an outer body cavity.

[0049] Molten PP material is injected into the cavities of the two main body through the first upper module 2. After the PP material cools, it forms the main body. After the main body is formed, the lifting base plate first drives the two lower modules 4 to move downward, so that the two sets of modules open the mold. Then it rotates 180° to switch the position of the two lower modules 4. Finally, it drives the two lower modules 4 to move upward, so that the two sets of modules close the mold again.

[0050] At this point, the formed main body moves to the outer cavity of the second upper mold 3. Molten TPE material is injected into both outer cavities through the second upper mold 3. After cooling, the TPE material forms the outer body, thus producing the two-color windshield. While the outer body is being injected into the second upper mold 3, the main body is simultaneously injected into the first upper mold 2. After injection molding is complete, the finished windshield is removed, and the lifting turntable 1 moves and switches the two lower molds 4 again to produce the next windshield. In this way, the windshield can be automatically and continuously injected. During the injection of the outer body, another main body can be injected simultaneously, and two windshields can be produced in a single injection, thereby greatly improving the production efficiency of the windshield.

[0051] Reference Figure 4 Specifically, the lower module 4 includes a base 41, two first templates 42, and a second template 43. The base 41 is fixedly mounted on the lifting turntable 1. The two first templates 42 are symmetrically mounted on the base 41 with the center point of the base 41 as the center point of symmetry. The two second templates 43 are also symmetrically mounted on the base 41 with the center point of the base 41 as the center point of symmetry. The line connecting the two first templates 42 is perpendicular to the line connecting the two second templates 43. Two recessed areas 5 are formed between the base 41, the two first templates 42, and the two second templates 43 on the lower module 4, and the two recessed areas 5 are spaced apart and parallel to each other.

[0052] Reference Figure 4 and 5 The base 41 is located on the side walls of the two first templates 42 that are far apart from each other, and each is fixedly mounted with a first driving component 9 by a mounting block. The driving end of the first driving component 9 is connected to the first template 42 and drives the first template 42 to slide back and forth on the base 41 along the length of the baffle. The base 41 is also embedded and fixedly mounted with a second driving component 10 below the two second templates 43. The driving end of the second driving component 10 is fixedly mounted with a connecting block 14. The connecting block 14 is connected to the second template 43, and the second driving component 10 can drive the second template 43 to slide back and forth on the base 41 along the width of the baffle through the connecting block 14.

[0053] In this application, both the first driving component 9 and the second driving component 10 can be hydraulic cylinders. After the outer casing is formed, the two first driving components 9 and the second driving component 10 drive the two first templates 42 and the second template 43 to move away from the base 41, thereby releasing the restriction on the finished wind deflector and facilitating the removal of the finished wind deflector by the workers. After the finished wind deflector is removed, the first driving components 9 and the second driving component 10 then drive the first templates 42 and the second template 43 to move and reset.

[0054] Limit switches 15 are installed on all four side walls of the base 41. The fixed ends of the four limit switches 15 are installed on the side walls of the base 41, and the moving ends of the four limit switches 15 are respectively fixed on the side walls of the two first templates 42 and the second template 43 that are far apart from each other. The limit switches 15 are used to limit the movement of the first templates 42 and the second templates 43, thereby making the movement of the first templates 42 and the second templates 43 more precise.

[0055] Reference Figure 6 and 7 The first template 42 includes a first plate 421, a first block 422, and a second block 423. The first plate 421 is slidably mounted on the base 41 along the length of the wind deflector, and the middle part of the side wall of the first plate 421 away from the wind deflector is connected to the first driving member 9. The first block 422 is fixedly mounted on one end of the first plate 421 near the side wall of the wind deflector, and the second block 423 is integrally formed on the other end of the first plate 421 near the side wall of the wind deflector.

[0056] A second guide rod 17 is inserted into the first plate 421 and the second block 423. The second guide rod 17 has a circular cross-section. One end of the second guide rod 17 is fixedly connected to the first plate 421, and the other end is inserted into the circular slot of the main plate's rotating shaft. The second guide rod 17 cooperates with the second block 423 and is used for the injection molding of the circular slot rotating shaft of the wind deflector.

[0057] Reference Figure 7 and 8 A first guide rod 16 is inserted into the first plate 421 and the first block 422. The first guide rod 16 has a semi-circular cross-section. One end of the first guide rod 16 is fixedly connected to the first plate 421, and the other end is inserted into the semi-circular slot of the main plate's rotating shaft. A limiting block 11 is slidably installed in the first block 422 along the direction perpendicular to the first guide rod 16. The end wall of the limiting block 11 near the first guide rod 16 abuts against the plane wall of the main plate's rotating shaft. A limiting protrusion 12 is formed by the outward protrusion of the middle of the end wall of the first limiting block 11. The limiting protrusion 12 is adapted to be inserted into the limiting groove of the rotating shaft. The first guide rod 16, the first block 422, and the limiting block 11 cooperate and are used for the injection molding of the semi-circular slot rotating shaft of the baffle plate.

[0058] Reference Figure 6and 7 Each first plate 421 is equipped with a drive mechanism 8, which includes a drive block 81, a wedge block 82, and a drive rod 83. The drive block 81 is slidably mounted on the top wall of the first plate 421 along the length of the baffle plate, and the drive rod 83 is fixedly mounted on the bottom wall of the first upper module 2 (see reference). Figure 3 The bottom end of the drive rod 83 is inclined away from the center of the first upper module 2. The middle part of the drive block 81 is provided with a guide groove 13 along the inclined direction of the drive rod 83, and the drive rod 83 is slidably inserted into the guide groove 13.

[0059] When the first upper mold assembly 2 and the lower mold assembly 4 are closed, the drive rod 83 inserts into the guide groove 13 of the drive block 81 and pushes the drive block 81 towards the direction closer to the wind deflector through the guide groove 13; when the first upper mold assembly 2 and the lower mold assembly 4 are opened, the drive rod 83 slides out of the guide groove 13 of the drive block 81 and pushes the drive block 81 away from the wind deflector through the guide groove 13. A limiting bolt 18 is fixedly installed on the first plate 421, which limits the movement of the drive block 81 away from the wind deflector, thereby facilitating the re-insertion of the drive rod 83 into the guide groove 13.

[0060] Reference Figure 7 and 8 The wedge-shaped block 82 is integrally formed on the side wall of the drive block 81 near the wind deflector. The wedge-shaped block 82 is inclined on the side wall near the first guide rod 16, and the inclined side wall of the wedge-shaped block 82 is slidably engaged with the limiting block 11. When the drive block 81 moves toward the wind deflector, the drive block 81 drives the wedge-shaped block 82 to move and drives the limiting block 11 to move toward the wind deflector's axis of rotation; when the drive block 81 moves away from the wind deflector, the drive block 81 drives the wedge-shaped block 82 to move and drives the limiting block 11 to move away from the wind deflector's axis of rotation.

[0061] After the main body is formed, the first upper module 2 and the lower module 4 are opened. At this time, the first upper module 2 drives the limiting block 11 to move away from the main body's rotation axis via the drive rod 83, drive block 81 and wedge block 82 (see reference). Figure 9 During the process from A to B, the limiting block 11 causes the limiting protrusion 12 to separate from the limiting groove of the rotating shaft, so that when the first block 422 moves after the baffle is formed, it will not interfere with the limiting groove on the rotating shaft of the baffle, thus making it easier to remove the baffle.

[0062] After the wind deflector is removed, the first upper module 2 and the lower module 4 close together. At this time, the first upper module 2 drives the limiting block 11 to move towards the main body pivot direction via the drive rod 83, drive block 81, and wedge block 82 (see reference). Figure 9 During the process from B to A, the limiting block 11 drives the limiting protrusion 12 to move and reset, so that a plane wall and a limiting groove can be formed on the rotating shaft during the injection molding of the main body.

[0063] The implementation principle of a two-color injection mold for a windshield in this application embodiment is as follows: Molten PP material is injected into the two main body cavities through the first upper mold group 2. After the PP material cools, it forms the main body. After the main body is formed, the lifting base plate first moves the two lower mold groups 4 downward, causing the two sets of molds to open. Then, it rotates 180° to switch the positions of the two lower mold groups 4. Finally, it moves the two lower mold groups 4 upward, causing the two sets of molds to close again. At this time, the formed main body moves to the outer body cavity of the second upper mold group 3. Molten TPE material is injected into the two outer body cavities through the second upper mold group 3. After the TPE material cools, it forms the outer body, thus producing the two-color windshield. While the second upper mold group 3 is injecting the outer body, the first upper mold group 2 is simultaneously injecting the main body. After the injection molding is completed, the finished windshield is taken out, and the lifting turntable 1 moves and switches the two lower mold groups 4 again to produce the next windshield. In this way, the wind deflector can be automatically and continuously injection molded. During the injection molding of the outer casing, another main casing can be injection molded at the same time, and two wind deflectors can be produced at the same time in a single injection, which can greatly improve the production efficiency of the wind deflector.

[0064] Example 2

[0065] Reference Figure 10 and 11 The difference between this embodiment and Embodiment 1 is that a sliding rod 19 is slidably inserted through the limiting block 11 along its own moving direction. The cross-section of the sliding rod 19 is the same as that of the limiting protrusion 12, and the limiting protrusion 12 is integrally formed at the end of the sliding rod 19 away from the wedge block 82. A push ring 25 is rotatably installed inside the wedge block 82 via a rotating shaft and three connecting rods. The push ring 25 is semi-circular, with one end fixedly installed on the push plate 26. The push plate 26 abuts against the end wall of the sliding rod 19 away from the limiting protrusion 12, and the other end of the push ring 25 abuts against the side wall of the limiting block 11 near the wedge block 82. When the first upper mold assembly 2 and the lower mold assembly 4 are in the mold-closed state, the limiting block 11 drives the push plate 26 to abut against the sliding rod 19 through the push ring 25, thereby keeping the limiting protrusion 12 stable.

[0066] A first sliding groove 20 is formed within the limiting block 11. A retaining ring 21 is fixedly installed on the outer peripheral sidewall of the sliding rod 19. The retaining ring 21 is slidably installed within the first sliding groove 20 along the moving direction of the sliding rod 19, and the sliding distance of the retaining ring 21 within the first sliding groove 20 is the same as the thickness of the limiting protrusion 12. A receiving groove 22 communicating with the first sliding groove 20 is formed within the limiting block 11 on the side of the first sliding groove 20 away from the wedge block 82. An elastic element 23 is placed within the receiving groove 22 of the limiting block 11. In this application, the elastic element 23 can be a spring. The elastic element 23 is sleeved on the sliding rod 19, with one end of the elastic element 23 abutting against the retaining ring 21 and the other end abutting against the bottom wall of the limiting block 11 in the receiving groove 22 away from the first sliding groove 20. When the limiting protrusion 12 is located at the end wall of the limiting block 11, the elastic element 23 is in an elastically compressed state.

[0067] A second groove 24 is provided on the side wall of the wedge block 82 near the limiting block 11 and on the side of the slide rod 19 away from the drive block 81. The push plate 26 is located in the second groove 24. The end of the push ring 25 away from the push plate 26 abuts against the side wall of the limiting block 11 near the wedge block 82 and is located on the side of the slide rod 19 near the drive block 81.

[0068] When the first upper mold assembly 2 and the lower mold assembly 4 open, the wedge block 82 and the limiting block 11 move relative to each other. At this time, the wedge block 82 moves downward. As the wedge block 82 continues to move, when the end of the push ring 25 away from the push rod no longer abuts against the side wall of the limiting block 11, the elastic element 23 releases its elastic potential energy and drives the slide rod 19 to move towards the wedge block 82 through the retaining ring 21. The slide rod 19 drives the limiting protrusion 12 to move into the limiting block 11, and the slide rod 19 drives the push ring 25 to rotate through the push plate 26. At this time, the push plate 26 rotates in the second slide groove 24, and the end of the slide rod 19 slides in the second slide groove 24.

[0069] Because the drive rod 83 is tilted, when the drive rod 83 pushes the drive block 81 to move, there is a large frictional force between the outer wall of the drive rod 83 and the inner wall of the drive block 81. After prolonged use, the drive rod 83 and the drive block 81 are prone to wear, which reduces the travel of the drive block 81 and consequently reduces the travel of the limiting protrusion 12. When the travel of the limiting protrusion 12 is reduced, it is easy for the limiting protrusion 12 to not completely disengage from the limiting groove of the main body shaft when the first upper module 2 and the lower module 4 open. At this time, if the first block 422 moves, interference may occur between the limiting protrusion 12 and the main body shaft, thereby damaging the main body.

[0070] In this embodiment, when the wedge block 82 moves downward by a small stroke (the stroke is less than the required stroke of the wedge block 82 in Embodiment 1), the slide rod 19 can drive the limiting protrusion 12 to move into the limiting block 11. This ensures that even if the drive rod 83 and drive block 81 wear down, the limiting protrusion 12 will not interfere with the rotating shaft of the main body, thereby improving the yield rate of the finished wind deflector.

[0071] The width of the push plate 26 is greater than the width of the slide bar 19. A first guide wall 27 is formed on the side wall of the push plate 26 near the slide bar 19 and at the end away from the drive block 81. The thickness of the push plate 26 at the first guide wall 27 gradually decreases in the direction away from the drive block 81. A second guide wall 28 is formed on the end of the push ring 25 away from the push plate 26 and on the side away from the drive block 81. The second guide wall 28 is chamfered and located on the side near the slide bar 19.

[0072] When the first upper mold assembly 2 and the lower mold assembly 4 are closed, the wedge block 82 and the limiting block 11 move relative to each other. At this time, the wedge block 82 moves upward. As the wedge block 82 continues to move, the slide rod 19 first moves up the first guide wall 27 to the push plate 26. The push rod is then pressed into the wedge block 82 by the limiting block 11 through the second guide wall 28. At this time, the push rod rotates inside the wedge block 82 and pushes the slide rod 19 to move through the push plate 26. The slide rod 19 drives the limiting protrusion 12 to move to the end wall of the limiting block 11, and the slide rod 19 presses the elastic element 23 through the retaining ring 21. In this way, when the wedge block 82 moves upward by a small stroke, the slide rod 19 can drive the limiting protrusion 12 to move to the end wall of the limiting block 11, thereby facilitating the quick reset of the limiting protrusion 12.

[0073] The implementation principle of Example 2 is as follows: When the first upper module 2 and the lower module 4 are opened, the wedge block 82 and the limiting block 11 move relative to each other. At this time, the wedge block 82 moves downward. As the wedge block 82 continues to move, when the end of the push ring 25 away from the push rod no longer abuts against the side wall of the limiting block 11, the elastic element 23 releases elastic potential energy and drives the slide rod 19 to move towards the wedge block 82 through the retaining ring 21. The slide rod 19 drives the limiting protrusion 12 to move into the limiting block 11. When the wedge block 82 moves downward by a small stroke (the stroke is less than the required stroke of the wedge block 82 in Example 1), the slide rod 19 can drive the limiting protrusion 12 to move into the limiting block 11. Thus, even if the drive rod 83 and the drive block 81 wear, the limiting protrusion 12 will not interfere with the rotating shaft of the main body, thereby improving the yield rate of the finished wind deflector.

[0074] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A two-color injection mold for a windshield, characterized in that: The system includes a lifting turntable (1), a first upper module (2), a second upper module (3), and two lower modules (4). The two lower modules (4) have the same structure and are set on the lifting turntable (1). A recessed area (5) is formed at the top of each lower module (4). The first upper module (2) and the second upper module (3) are fixedly set. A first mold core (6) is set at the bottom of the first upper module (2), and a second mold core (7) is set at the bottom of the second upper module (3). When the first upper module (2) and the second upper module (3) are molded with the two lower modules (4), the first mold core (6) is inserted into one recessed area (5) and forms a main body cavity, and the second mold core (7) is inserted into another recessed area (5) and forms an outer body cavity. The lifting turntable (1) drives the two lower modules (4) to move up and down and rotate. The lower module (4) includes a base (41), a first template (42) and a second template (43). The base (41) is mounted on the lifting turntable (1). The first template (42) is slidably mounted on the base (41). The first template (42) includes a first plate (421), a first block (422) and a second block (423). The first plate (421) is slidably mounted on the base (41) along the length of the windshield. The first block (422) and the second block (423) are respectively mounted at both ends of the first plate (421). A limit block (11) is slidably mounted inside the first block (422). A limit protrusion (12) is mounted on the end wall of the limit block (11). A drive mechanism (8) for driving the limit block (11) to move is mounted on the first plate (421). The driving mechanism (8) includes a driving block (81), a wedge block (82) and a driving rod (83). The driving block (81) is slidably disposed on the first plate (421) along the moving direction of the first plate (421). The wedge block (82) is disposed on the driving block (81) and slidably disposed in the first block (422) along the moving direction of the vertical limiting block (11). The limiting block (11) is slidably disposed on the wedge block (82). A sliding rod (19) is slidably disposed within the limiting block (11) along its own moving direction. The limiting protrusion (12) is formed at the end of the sliding rod (19). A first sliding groove (20) is provided within the limiting block (11). A retaining ring (21) is fixedly disposed on the side wall of the sliding rod (19). The retaining ring (21) is slidably disposed within the first sliding groove (20). A receiving groove (22) communicating with the first sliding groove (20) is provided within the limiting block (11). An elastic element (23) is disposed within the receiving groove (22). The elastic element (23) is located on the side of the retaining ring (21) away from the wedge block (82) and drives... The movable slide rod (19) moves toward the wedge block (82); a second slide groove (24) for the slide rod (19) to move is provided on the side wall of the wedge block (82) near the limiting block (11); a push ring (25) is rotatably provided inside the wedge block (82); the push ring (25) is semi-circular; a push plate (26) is provided at one end of the push ring (25); the push plate (26) abuts against the end of the slide rod (19) away from the limiting protrusion (12); the other end of the push ring (25) abuts against the side wall of the limiting block (11) near the wedge block (82) and is located on the side of the slide rod (19) near the driving block (81).

2. The two-color injection mold for a windshield panel according to claim 1, characterized in that: The second template (43) is slidably disposed on the base (41) along the sliding direction perpendicular to the first template (42), and the recessed area (5) is formed between the base (41), the first template (42) and the second template (43).

3. The two-color injection mold for a windshield panel according to claim 2, characterized in that: Two of each of the first mold core (6) and the second mold core (7) are provided, and two of each of the first template (42) and the second template (43) are provided, and the two first templates (42) and the two second templates (43) are symmetrically arranged along the center point of the base (41).

4. The two-color injection mold for a windshield according to claim 3, characterized in that: The base (41) is provided with a first driving member (9) for driving the first plate (421) to move, and the first block (422) is used for injection molding of the semi-circular slot shaft of the wind deflector, and the second block (423) is used for injection molding of the circular slot shaft of the wind deflector.

5. A two-color injection mold for a windshield according to claim 4, characterized in that: The end wall of the limiting block (11) abuts against the plane wall of the rotating shaft, and the limiting protrusion (12) is located in the limiting groove of the rotating shaft. When the first upper module (2) moves upward, the driving mechanism (8) drives the limiting block (11) to move along the direction perpendicular to the first plate (421). The limiting block (11) drives the limiting protrusion (12) to disengage from the limiting groove of the rotating shaft. When the first upper module (2) moves downward, the driving mechanism (8) drives the limiting block (11) to move and reset.

6. A two-color injection mold for a windshield according to claim 5, characterized in that: The drive rod (83) is located at the bottom of the first upper module (2). A guide groove (13) is provided in the drive block (81). The drive rod (83) is slidably inserted into the guide groove (13) and drives the drive block (81) to move through the guide groove (13).

7. A two-color injection mold for a windshield according to claim 1, characterized in that: The second template (43) is slidably disposed on the base (41) along the width direction of the wind deflector. The bottom of the base (41) is embedded with a second driving member (10). The driving end of the second driving member (10) is provided with a connecting block (14). The connecting block (14) is connected to the second template (43).

8. A two-color injection mold for a windshield according to claim 3, characterized in that: On the side wall of the base (41), below the two first templates (42) and the second template (43), there are travel limit switches (15), which limit the movement of the first template (42) and the second template (43).

9. A two-color injection mold for a windshield according to claim 1, characterized in that: The push plate (26) has a first guide wall (27) on the side wall near the slide rod (19) and on the side away from the drive block (81) to facilitate the slide rod (19) moving onto the push plate (26). The push ring (25) has a second guide wall (28) on the side away from the end wall of the push plate (26) and on the side away from the drive block (81) to facilitate the limit block (11) pushing the push ring (25) to rotate.

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