Modular quick-release structure for automotive headlight injection mold frame

Abstract

This utility model belongs to the field of quick-assembly structure technology, specifically a modular quick-assembly structure for automotive headlight injection mold frames, including an upper mold, a lower mold, a cavity module, and a core module. Through the setting of a positioning mechanism, the modular upper mold, lower mold, cavity module, and core module are quickly assembled and disassembled. The mold, lower mold, cavity module, and core module are designed so that they do not need to be completely disassembled when replacement is required. Pushing the auxiliary block and rotating the knob drives the transmission rod to rotate, causing one end of the insertion block located in the slot to move out, releasing the limiting position on the positioning block. Pulling the knob releases the positioning block from the slot, releasing the limiting position on the cavity module and core module. The new cavity module and core module are then removed and pushed into the upper and lower molds respectively. Pushing the knob until one end of the positioning block inserts into the slot completes the movement limitation of the positioning block, thus completing the quick replacement and positioning of the cavity module and core module.

Description

Technical Field

[0001] This utility model belongs to the field of quick-release structure technology, specifically the modular quick-release structure of automotive headlight injection mold frame. Background Technology

[0002] In the automotive industry, headlights require frequent changes to injection molds to adapt to different product production due to rapid model iterations and highly personalized designs. Traditional headlight injection molds, as the core load-bearing components for plastic part molding, need to be precisely connected to the injection molding machine. However, their design does not fully consider the scenario of rapid switching between multiple product types, making it difficult to meet the small-batch, multi-batch production rhythm of car companies.

[0003] Most existing mold frames are integral structures. During disassembly and assembly, it is necessary to manually remove the locating pins, fastening bolts and other connecting parts one by one. Replacing a mold frame usually takes 2-4 hours. During this time, the injection molding machine is in a stopped state, which greatly reduces the utilization rate of the equipment. Moreover, the disassembly and assembly process requires a high level of professionalism from the operators. Improper operation can easily lead to the deviation of the mold frame reference, increasing the subsequent debugging time and cost.

[0004] Meanwhile, key components such as guide pillars, guide sleeves, and positioning mechanisms in traditional mold frames are mostly fixed assemblies, and the components of mold frames for different car models cannot be interchanged. Enterprises need to keep a large number of mold frames and spare parts of different specifications, which not only ties up inventory funds but also increases management costs. Therefore, a modular quick-release structure for automotive headlight injection mold frames is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, a modular quick-release structure for automotive headlight injection mold frames is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is: the modular quick-release structure of the car lamp injection mold frame of this utility model includes an upper mold, a lower mold, a cavity module and a core module. The outer walls of the cavity module and the core module are provided with slots. The inner side walls of the upper mold and the lower mold are provided with positioning slots. A fixing tube is fixedly connected in the positioning slot. A positioning mechanism is provided inside the fixed tube. The positioning mechanism includes a positioning block slidably connected inside the fixed tube. A limiting groove is formed in the positioning block. One end of the positioning block extends out of the fixed tube and is inserted into a slot. The other end of the positioning block has a through groove communicating with the limiting groove. A transmission rod is rotatably connected to the inner wall of the limiting groove. A gear is fixedly connected to the outer wall of the transmission rod. A fixing rod is fixedly connected to the inner wall of the limiting groove. A spring is sleeved on the outer wall of the fixing rod. A rack is slidably connected to the outer wall of the fixing rod. The rack meshes with the gear. A plug block is fixedly connected to one end of the rack. The other end of the plug block passes through the positioning block and is inserted into a slot formed in the inner wall of the fixed tube. The other end of the transmission rod extends out of the through groove. Through the setting of the positioning mechanism, the modular upper mold, lower mold, cavity module and core module can be quickly assembled and disassembled for positioning.

[0007] Preferably, a fitting block is fixedly connected to the inner wall of the positioning groove, and a fitting groove adapted to the positioning block is opened on the side of the fitting block near the fixed tube. The fitting block and the fitting groove can be used to assist in supporting and positioning the positioning block.

[0008] Preferably, a fixing block is fixedly connected to the inner wall of the fixing tube, and a through hole adapted to the transmission rod is opened on one side of the fixing block. The fixing block and the through hole can facilitate the support of the transmission rod and the sealing of the fixing tube.

[0009] Preferably, a knob is fixedly connected to one end of the transmission rod located on the outside, and the transmission rod can be rotated by rotating the knob. A sealing gasket is provided on the outer wall of the knob.

[0010] Preferably, auxiliary frames are fixedly connected to both sides of the upper and lower molds, and auxiliary blocks are slidably connected inside the auxiliary frames. A first magnetic block is fixedly connected to one end of the auxiliary block, and a second magnetic block is fixedly connected to the inner side wall of the auxiliary frame. By setting up the auxiliary frames, auxiliary blocks, first magnetic blocks, and second magnetic blocks, it is convenient to assist in moving and positioning the knob and transmission rod, and reduce the possibility of the positioning mechanism disengaging on its own.

[0011] Preferably, the inner sidewall of the auxiliary frame is provided with a sliding groove, and a slider is slidably connected in the sliding groove. One end of the slider extends out of the sliding groove and is fixedly connected to the auxiliary block. The sliding groove and the slider facilitate the movement and limiting of the auxiliary block.

[0012] Preferably, mounting blocks are fixedly connected to both sides of the upper and lower molds, and mounting holes are provided on the top of the mounting blocks. The mounting blocks and mounting holes facilitate the installation and fixing of the upper and lower molds with bolts.

[0013] The beneficial effects of this utility model are: This utility model provides a modular quick-release structure for automotive headlight injection mold frames. Through the positioning mechanism, and in conjunction with the modularly configured upper mold, lower mold, cavity module, and core module, it enables rapid assembly and disassembly. The mold, lower mold, cavity module, and core module are designed so that replacement does not require complete disassembly. Pushing the auxiliary block and rotating the knob rotates the transmission rod, causing one end of the insertion block located in the slot to move out, releasing the positioning block's limitation. Pulling the knob moves the positioning block away from the cavity module and core module, releasing their limitations. The new cavity module and core module are then removed and pushed into the upper and lower molds respectively. Pushing the knob until one end of the positioning block inserts into the slot completes the movement limitation of the positioning block, enabling rapid replacement and positioning of the cavity module and core module. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a perspective view of the present invention; Figure 2 This is a cross-sectional structural diagram of the upper and lower molds in this utility model; Figure 3 This is an exploded structural diagram of the upper and lower molds in this utility model; Figure 4 This is a perspective view of the upper mold and auxiliary frame in this utility model; Figure 5 This is a perspective view of the fixing tube and auxiliary frame in this utility model; Figure 6 This is a cross-sectional view of the positioning block in this utility model.

[0015] Legend: 1. Upper mold; 2. Lower mold; 3. Cavity module; 4. Core module; 5. Positioning groove; 6. Fixing tube; 7. Slot; 8. Positioning mechanism; 81. Positioning block; 82. Limiting groove; 83. Transmission rod; 84. Gear; 85. Rack; 86. Insertion block; 87. Spring; 9. Fitting block; 10. Fixing block; 11. Knob; 12. Auxiliary frame; 13. Auxiliary block; 14. First magnetic block; 15. Slide groove; 16. Mounting block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Specific implementation examples are given below.

[0018] Please see Figures 1-6 This utility model provides a modular quick-release structure for automotive lamp injection mold frame, including an upper mold 1, a lower mold 2, a cavity module 3, and a core module 4. The cavity module 3 is used in conjunction with the upper mold 1, and the core module 4 is used in conjunction with the lower mold 2. The outer walls of both the cavity module 3 and the core module 4 are provided with rectangular slots 7. The inner side walls of both the upper mold 1 and the lower mold 2 are provided with two symmetrically distributed rectangular positioning slots 5 that penetrate both the upper mold 1 and the lower mold 2. A rectangular fixing tube 6 is fixedly connected in the positioning slot 5, but neither end of the fixing tube 6 extends out of the positioning slot 5. A positioning mechanism 8 is provided inside the fixed tube 6. The positioning mechanism 8 includes a rectangular positioning block 81 slidably connected inside the fixed tube 6. The positioning block 81 fits against the inner wall of the fixed tube 6. A rectangular limiting groove 82 is formed inside the positioning block 81. One end of the positioning block 81 extends out of the fixed tube 6 and is inserted into the slot 7. The other end of the positioning block 81 has a rectangular through groove communicating with the limiting groove 82. A transmission rod 83 is rotatably connected to the inner wall of the limiting groove 82. A gear 84 is fixedly connected to the outer wall of the transmission rod 83. Two gears are fixedly connected to the inner wall of the limiting groove 82. A symmetrically distributed cylindrical fixing rod has a spring 87 fitted on its outer wall. Two staggered and symmetrically distributed racks 85 are slidably connected to the outer wall of the fixing rod. The racks 85 mesh with gears 84. One end of the racks 85 is fixedly connected to a plug block 86. The spring 87 is located on the outer wall of the fixing rod at the end of the racks 85 away from the plug block 86. The other end of the plug block 86 passes through the positioning block 81 and is inserted into two rectangular snap-fit ​​grooves symmetrically distributed relative to the fixing tube 6 on the inner side wall of the fixing tube 6. The other end of the transmission rod 83 extends out of a through groove. With the positioning mechanism 8 in place, the upper mold 1, lower mold 2, cavity module 3 and core module 4 are modularly configured for quick assembly and disassembly positioning. A rectangular fitting block 9 is fixedly connected to the inner wall of the positioning groove 5. The fitting block 9 has a fitting groove that matches the positioning block 81 on the side near the fixing tube 6. This groove fills the gap between the fixing tube 6 and the core module 4 and the cavity module 3. The fitting block 9 and the fitting groove facilitate the support and positioning of the positioning block 81.

[0019] A rectangular fixing block 10 is fixedly connected to the inner wall of the fixing tube 6. One side of the fixing block 10 is provided with a through hole that matches the transmission rod 83. The fixing block 10 and the through hole can be used to assist in supporting the transmission rod 83 and to cover and seal the fixing tube 6.

[0020] A knob 11 is fixedly connected to one end of the transmission rod 83 located on the outside. The transmission rod 83 can be rotated by rotating the knob 11. A sealing gasket is provided on the outer wall of the knob 11.

[0021] A rectangular auxiliary frame 12 is fixedly connected to both sides of the upper mold 1 and the lower mold 2. The auxiliary frame 12 is a rectangular plate with a rectangular auxiliary groove on one side near the upper mold 1 and the lower mold 2. A rectangular auxiliary block 13 is slidably connected inside the auxiliary frame 12. A first magnetic block 14 is fixedly connected to one end of the auxiliary block 13. A second magnetic block is fixedly connected to the inner side wall of the auxiliary frame 12. The opposite sides of the first magnetic block 14 and the second magnetic block are set to have the same pole, and there is a repulsive force between them. By setting up the auxiliary frame 12, auxiliary block 13, first magnetic block 14 and second magnetic block, it is convenient to assist in moving and positioning the knob 11 and transmission rod 83, reducing the possibility of the positioning mechanism 8 disengaging on its own.

[0022] The inner side wall of the auxiliary frame 12 is provided with a sliding groove 15, and a slider is slidably connected in the sliding groove 15. One end of the slider extends out of the sliding groove 15 and is fixedly connected to the auxiliary block 13. The sliding groove 15 and the slider can facilitate the movement and limiting of the auxiliary block 13.

[0023] Mounting blocks 16 are fixedly connected to both sides of the upper mold 1 and the lower mold 2. Mounting blocks 16 have mounting holes on their tops. The mounting blocks 16 and mounting holes facilitate the installation and fixing of the upper mold 1 and the lower mold 2 with bolts.

[0024] Based on the above structure, the present invention includes the following implementation process: By passing bolts through the mounting holes on the upper mold 1 and the lower mold 2 respectively, and through the through holes opened on the mounting plates of the mold and the lower mold 2 respectively, and then turning the nuts onto the bolts and tightening them, the upper mold 1 and the lower mold 2 are fixed. Then, using an external crane with hooks and straps, or manually, the cavity module 3 is pushed into the mounting slot at the bottom of the upper mold 1, and the core module 4 is pushed into the mounting slot at the top of the lower mold 2. The auxiliary block 13 is pushed to retract into the auxiliary frame 12, and the movement limit of the knob 11 is released. The knob 11 is pushed, and the knob 11 drives the positioning block 81 to move towards the cavity module 3 and the core module 4 through the transmission rod 83 until one end of the positioning block 81 is inserted into the slot 7 and abuts against the inner wall of the slot 7. At this time, the snap-fit ​​groove in the fixed tube 6 is aligned with the limiting groove 82. Under the pressure of the spring 87, the rack 85 pushes the plug-in block 86 to move towards the snap-fit ​​groove until one end of the plug-in block 86 is inserted into the snap-fit ​​groove. The spring 87 then limits the movement of the plug-in block 86, thus limiting the movement of the positioning block 81. The two plug-in blocks 86 move in opposite directions, which can reduce the impact of the displacement of the plug-in block 86 on the positioning block 81 caused by the vibration caused by the collision between the upper mold 1 and the lower mold 2 during the injection molding process. At this time, the positioning of the cavity module 3 and the core module 4 is completed. When the auxiliary block 13 is released, under the action of the magnetic repulsion between the first magnetic block 14 and the second magnetic block, the auxiliary block 13 is reset and moves the knob 11 and the transmission rod 83 to a limited position. Even if the two plug-in blocks 86 are temporarily disengaged from the slot 7 due to vibration, the positioning block 81 cannot be moved. The upper mold 1, lower mold 2, cavity module 3, and core module 4 can be replaced without disassembling them as a whole. Simply push the auxiliary block 13 again and turn the knob 11 to drive the transmission rod 83 to rotate. The transmission rod 83 drives the gear 84 to rotate, and the gear 84 drives the two racks 85 to rotate simultaneously. This causes the two racks 85 to move the two plug blocks 86 toward the springs 87 on the corresponding fixed rods, so that one end of the plug block 86 in the snap-fit ​​groove moves out, releasing the limit on the positioning block 81. Pull the knob 11 and drive the positioning block 81 away from the cavity module 3 and core module 4 through the transmission rod 83 to release the limit on the cavity module 3 and core module 4, and remove and replace them with new or suitable cavity module 3 and core module 4. The cavity module 3 is pushed into the mounting slot at the bottom of the upper mold 1 by an external hoisting device with hooks and straps or manually. The core module 4 is pushed into the mounting slot at the top of the lower mold 2. The auxiliary block 13 is pushed to retract into the auxiliary frame 12, and the movement limit of the knob 11 is released. The knob 11 is pushed, and the knob 11 drives the positioning block 81 to move towards the cavity module 3 and the core module 4 through the transmission rod 83 until one end of the positioning block 81 is inserted into the slot 7 and abuts against the inner wall of the slot 7. At this time, the snap-fit ​​groove in the fixed tube 6 is aligned with the limiting groove 82. Under the pressure of the spring 87, the rack 85 pushes the plug-in block 86 to move towards the snap-fit ​​groove until one end of the plug-in block 86 is inserted into the snap-fit ​​groove. The spring 87 then limits the movement of the plug-in block 86, thus limiting the movement of the positioning block 81. The two plug-in blocks 86 move in opposite directions, which can reduce the impact of the displacement of the plug-in block 86 on the positioning block 81 caused by the vibration generated by the collision between the upper mold 1 and the lower mold 2 during the injection molding process. At this time, the positioning of the cavity module 3 and the core module 4 is completed.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A modular quick-release structure for automotive headlight injection mold frames, characterized by: It includes an upper mold (1), a lower mold (2), a cavity module (3) and a core module (4). The outer walls of the cavity module (3) and the core module (4) are provided with slots (7). The inner walls of the upper mold (1) and the lower mold (2) are provided with positioning slots (5). A fixing tube (6) is fixedly connected in the positioning slot (5). A positioning mechanism (8) is provided inside the fixed tube (6). The positioning mechanism (8) includes a positioning block (81) slidably connected inside the fixed tube (6). A limiting groove (82) is formed inside the positioning block (81). One end of the positioning block (81) extends out of the fixed tube (6) and is inserted into the slot (7). The other end of the positioning block (81) is provided with a through groove communicating with the limiting groove (82). A transmission rod (83) is rotatably connected to the inner wall of the limiting groove (82). The outer wall of the transmission rod (83) is fixed. A gear (84) is connected to the inner wall of the limiting groove (82), a fixing rod is fixedly connected to the inner wall of the fixing rod, a spring (87) is sleeved on the outer wall of the fixing rod, a rack (85) is slidably connected to the outer wall of the fixing rod, the rack (85) meshes with the gear (84), a plug block (86) is fixedly connected to one end of the rack (85), the other end of the plug block (86) passes through the positioning block (81) and is inserted into the snap-fit ​​groove opened on the inner wall of the fixing tube (6), and the other end of the transmission rod (83) extends out of the through groove.

2. The modular quick-release structure of the automotive lamp injection mold frame according to claim 1, characterized in that: The inner wall of the positioning groove (5) is fixedly connected to a fitting block (9), and the fitting block (9) has a fitting groove adapted to the positioning block (81) on one side near the fixing tube (6).

3. The modular quick-release structure of the automotive lamp injection mold frame according to claim 2, characterized in that: The inner wall of the fixed tube (6) is fixedly connected to a fixed block (10), and one side of the fixed block (10) is provided with a through hole that is compatible with the transmission rod (83).

4. The modular quick-release structure of the automotive lamp injection mold frame according to claim 3, characterized in that: A knob (11) is fixedly connected to one end of the transmission rod (83) located on the outside, and a sealing gasket is provided on the outer wall of the knob (11).

5. The modular quick-release structure for automotive headlight injection mold frame according to claim 4, characterized in that: Both sides of the upper mold (1) and the lower mold (2) are fixedly connected to auxiliary frames (12). An auxiliary block (13) is slidably connected inside the auxiliary frame (12). A first magnetic block (14) is fixedly connected to one end of the auxiliary block (13). A second magnetic block is fixedly connected to the inner side wall of the auxiliary frame (12).

6. The modular quick-release structure of the automotive lamp injection mold frame according to claim 5, characterized in that: The inner wall of the auxiliary frame (12) is provided with a groove (15), and a slider is slidably connected in the groove (15). One end of the slider extends out of the groove (15) and is fixedly connected to the auxiliary block (13).

7. The modular quick-release structure for automotive headlight injection mold frame according to claim 6, characterized in that: Both sides of the upper mold (1) and the lower mold (2) are fixedly connected with mounting blocks (16), and the top of the mounting blocks (16) is provided with mounting holes.

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