Double-color rubber coating injection molding mold and method based on automobile lamp mask machining

Abstract

The invention discloses a double-color rubber coating injection molding mold and method based on automobile lamp mask machining, and relates to the technical field of mold double-color injection molding, the double-color rubber coating injection molding mold comprises an operation table, the top of the operation table is provided with an injection molding device used for injection molding, the double-color rubber coating injection molding mold further comprises a supporting base, the supporting base is arranged at the top of the operation table, and one side of the supporting base is rotationally connected with a rotating disc; three shaping grooves used for injection molding are formed in the side, close to the injection molding device, of the rotating disc. A switching mechanism on one side of the switching disc drives the switching disc to rotate, so that an ejection mechanism ejects out cut-off waste materials in an injection molding groove and cleans the injection molding groove, and when a model obtained after secondary injection molding rotates by 60 degrees along with a rotating disc, a push-out device is arranged in a shaping groove, the completed model is pushed out, and therefore the mold forming efficiency is improved. Therefore, circular machining of the automobile lamp mask is achieved, and the overall machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of two-color injection molding of molds, and in particular to a two-color encapsulated injection molding mold and a method based on automobile headlight mask processing. Background Art

[0002] As the name suggests, a two-color injection molding machine is a machine that produces two plastic products of different materials and colors by injecting two different colors of plastic into one component. The simplified features of a two-color injection molding machine are: independent adjustment, high measurement accuracy, stable plasticizing quality, stable back pressure, and fast response.

[0003] A two-color injection molding machine and a two-color injection molding process disclosed in a patent application with reference publication number CN117245844A include an injection molding machine A and an injection molding machine B. A mold is fixed on the injection molding machine A. The mold has a first injection port and a second injection port. The injection molding machine A is connected to the first injection port, and the injection molding machine B is connected to the second injection port. Two-color injection molding and cooling can be performed simultaneously, the precision of the injection molding machine can be effectively improved, and two-color injection molding can be achieved, and the product quality is good.

[0004] The two sets of molds cannot be connected during the injection molding process, which affects the efficiency of two-color injection molding. In addition, during the injection molding process, the colloid is injected into the mold through the pouring gate, and the pouring gate will adhere to the model during cooling, causing bulges or breaks at the pouring gate. Subsequent personnel need to suspend injection molding and handle the pouring gate and model.

[0005] Therefore, it is necessary to provide a two-color overmolding injection molding mold and method based on automobile headlight mask processing to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a two-color overmolding injection molding mold and method based on automobile lamp cover processing to solve the problems of defects of the prior art mentioned in the above background technology.

[0007] Based on the above ideas, the present invention provides the following technical solutions: a two-color overmolding injection molding mold based on automobile lamp mask processing, comprising an operating table, an injection molding device for injection molding is arranged on the top of the operating table, and further comprising: A support seat, which is arranged on the top of the operating table, and one side of the support seat is rotatably connected to a rotating disk, and the rotating disk is provided with three molding grooves for injection molding on a side close to the injection molding device; Two switching disks, both of which are arranged on the front side of the rotating disk, and the two switching disks are symmetrically arranged about the vertical center line of the support seat, one of the switching disks is provided with two first molding grooves on the outside, and the other switching disk is provided with two second molding grooves on the outside, the first molding groove and the second molding groove are both provided with injection molding grooves for injection molding, and a switching mechanism for position change is provided on one side of the two switching disks; Two sets of cutting mechanisms are arranged on one side of the switching disk. The two sets of cutting mechanisms are respectively arranged on the two injection molding grooves on the switching disk, and a pusher is arranged on the top of the cutting mechanism. During injection molding, the pusher pushes the cutting mechanism to open the injection molding groove. After the injection molding is completed, the pusher resets the cutting mechanism to cut off the plastic at the injection molding groove after injection molding. Two sets of ejection mechanisms are respectively arranged on both sides of the support seat and are used to eject the waste cut off by the injection molding groove.

[0008] As a further solution of the present invention: a second motor is fixedly connected to the side of the support seat away from the rotating disk, and an output shaft of the second motor passes through the support seat and is fixedly connected to the rotating disk, so as to drive the rotating disk to rotate, so that the molding groove is docked and adapted with the first molding and the second molding groove respectively; a fixed support plate is fixedly connected to the top of the operating table, a first hydraulic push rod is fixedly connected to the outer side of the fixed support plate, and the telescopic end of the first hydraulic push rod is fixedly connected to the support seat.

[0009] As a further solution of the present invention: the cutting mechanism comprises: Two movable plates, the two movable plates are symmetrically arranged about the center of the injection molding groove, and the two movable plates are fixedly connected with a cutting head on opposite sides, and the two movable plates are arranged outside the switching disk; Two connecting plates, the two connecting plates are respectively arranged at one end of the two moving plates, and the two connecting plates are fixedly connected to the switching disk; A second telescopic rod and a second spring, wherein two ends of the second telescopic rod and the second spring are respectively fixedly connected to the connecting plate and the movable plate, and the second spring is sleeved on the outside of the second telescopic rod; Two fixed plates are fixedly connected to the top of the moving plate, and fixed shafts are fixedly connected to the outer sides of the two fixed plates.

[0010] As a further solution of the present invention: the cutting mechanism further includes: Two cutting rods, the two cutting rods are respectively arranged inside the two moving plates, and one end of the two cutting rods passes through the switching disk and extends to the inside of the injection molding groove, so as to cut off the excess injection molding; Two limit frames are fixedly connected to the top of the moving plate. The two limit frames are slidably connected with sliding shafts inside. The sliding shafts are fixedly connected to the truncation rods. When the limit frames move, the truncation rods are pushed to move through the sliding shafts.

[0011] As a further solution of the present invention: the pushing member includes: A push ring, wherein the push ring and the center of the injection groove are in the same straight line, and a first telescopic rod and a first spring are fixedly connected between the push ring and the switching disk, and the first spring is sleeved on the outside of the first telescopic rod; Two limit push frames are respectively fixedly connected to both sides of the push ring, and the fixed shaft extends into the inside of the limit push frame and is slidably connected to the limit push frame.

[0012] As a further solution of the present invention: the ejection mechanism includes an ejection member and a linear driving member for driving the ejection member to move, and the ejection member includes: A fixed cylinder, wherein a contact ring is arranged on one side of the fixed cylinder close to the injection groove; A plurality of first racks, each of which is arranged in a ring shape around the center of the fixed cylinder, and each of which is fixedly connected to the contact ring; A third telescopic rod is fixedly connected between the first rack and the fixed cylinder, a third spring is sleeved on the outer side of the third telescopic rod, and two ends of the third spring are respectively fixedly connected to the fixed cylinder and the first rack; A gear meshing with the first rack, the outer side of the gear being rotatably connected to a mounting plate, and the mounting plate being fixedly connected to the inside of the fixing cylinder; An ejector pin, the ejector pin is arranged at the front side of the contact ring and at the inner side of the contact ring; A plurality of second racks are fixedly connected to the ejection column, the plurality of second racks are respectively meshed with the plurality of gears, and the outer sides of the plurality of second racks are slidably connected with guide plates, and the plurality of guide plates are fixedly connected to the fixed cylinder.

[0013] As a further solution of the present invention: the linear drive member includes: A driving bracket, the driving bracket is fixedly connected to the outer side of the supporting base, and the outer side of the driving bracket is rotatably connected to a screw rod; The push frame is fixedly connected to the fixed cylinder, and the push frame passes through the driving bracket and is slidably connected to the driving bracket. The sliding seat is sleeved on the outside of the screw and connected to the screw through a ball nut pair, and the sliding seat is fixedly connected to the pushing frame. A third motor is fixedly connected to the outside of the driving bracket, and the output shaft of the third motor is fixedly connected to the screw.

[0014] As a further solution of the present invention: the switching mechanism includes: A second hydraulic push rod, the second hydraulic push rod is fixedly connected to the top of the operating table, and the telescopic end of the second hydraulic push rod is fixedly connected to the mounting bracket; The mounting bracket is slidably connected to the top of the operating table, and a first motor is fixedly connected to the outer side of the mounting bracket. The output shaft of the first motor passes through the mounting bracket and is fixedly connected to the switching disk.

[0015] As a further solution of the present invention: the injection molding device comprises: An injection molding machine for injection molding, the injection molding machine is arranged on the top of the operating table, and two injection molding cylinders are arranged at the output end of the injection molding machine, and the two injection molding cylinders extend to the injection molding grooves on the two switching disks respectively; The linear module is fixedly connected to the top of the operating table, and the injection molding machine is arranged at the moving end of the linear module to drive the injection molding machine to move.

[0016] A two-color overmolding injection molding method based on automobile headlight mask processing is also provided, comprising the following steps: Step 1: align the molding groove on the rotating disk with the first molding groove and the second molding groove on the two switching disks, and then perform injection molding on the first molding groove through the injection molding equipment; Step 2: After the model inside the first molding groove is formed, the pusher pushes the cutting mechanism to cut off the waste at the injection molding groove, and by rotating the rotating disk, the first molded model is rotated to the second molding groove, and the injection molding equipment performs secondary color injection molding on the second molding groove; Step 3: During the rotation of the rotating disk, the switching mechanism on one side of the switching disk drives the switching disk to rotate, so that the ejection mechanism ejects the cut waste inside the injection molding groove to clean the injection molding groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The switching mechanism on one side of the switching disk drives the switching disk to rotate, so that the ejection mechanism ejects the cut waste inside the injection molding groove and cleans the injection molding groove. When the model after secondary injection molding rotates 60 degrees with the rotating disk, the ejection device is set inside the molding groove to push out the completed model, thereby achieving the cyclic processing of the headlight mask and improving the overall processing efficiency.

[0018] 2. The push ring is reset under the action of the first spring, and cooperates with the second spring between the connecting plate and the movable plate to make the cutting heads at one end of the two movable plates move relatively, cut off the injection part between the injection groove and the injection cylinder, and the limit frame drives the cutting rod to reset, and the waste material at one end of the injection groove is cut off and separated from the model. First, the completion of the model is ensured to avoid bulges caused by injection molding, and the waste material inside the injection groove is separated from the injection cylinder, which is convenient for later cleaning and avoids clogging of the injection groove.

[0019] 3. The first rack drives the second rack to move through the meshing gear, so that the second rack continues to descend, so that multiple second racks push the ejector column to insert into the injection groove, and eject the cut-off waste inside the injection groove to ensure the smooth injection of the injection groove. When the second rack is pushed out, the moving plate and the cutting rod are reset to ensure the protection of the cleaned injection groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the support base structure of the present invention; Figure 3 It is a schematic diagram of the fixed support plate structure of the present invention; Figure 4 It is a schematic diagram of the support seat and the fixed support plate structure of the present invention; Figure 5 It is a schematic diagram of the structure of the rotating disk of the present invention; Figure 6 It is a schematic diagram of the structure of the switching disk of the present invention; Figure 7 It is a schematic diagram of the structure of the switching mechanism of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the switching disk of the present invention; Fig. 9 It is a schematic diagram of the structure of the cutting mechanism of the present invention; Fig.10 It is a schematic diagram of the structure of the driving bracket of the present invention; Fig.11 is a schematic diagram of a linear drive member of the present invention; Fig.12 It is a schematic diagram of the ejector of the present invention.

[0022] In the figure: 1, operating table; 101, fixed support plate; 102, first hydraulic push rod; 2, injection molding machine; 201, injection molding cylinder; 202, linear module; 3, support seat; 300, protective cover; 301, rotating disk; 302, shaping groove; 303, second motor; 4, switching disk; 402, injection molding groove; 501, mounting bracket; 502, first motor; 504, second hydraulic push rod; 6, push ring; 602, first telescopic rod; 603, first spring; 604, limit push frame; 701, moving plate; 702, cutting head; 703, Limit frame; 704, connecting plate; 705, second telescopic rod; 706, second spring; 707, fixing plate; 708, fixing shaft; 801, truncation rod; 802, sliding shaft; 9, fixing cylinder; 901, contact ring; 902, first rack; 903, third telescopic rod; 904, third spring; 905, mounting plate; 906, gear; 907, second rack; 908, guide plate; 909, ejector column; 10, driving bracket; 1001, screw rod; 1002, sliding seat; 1003, third motor; 1004, pushing bracket. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] like Figures 1 to 12 As shown, a two-color overmolding injection molding mold and method based on automobile headlight mask processing include the following embodiments: Embodiment 1: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes an operating table 1, on the top of which is an injection molding device for injection molding, and also includes: The support base 3 is arranged on the top of the operating table 1, and a rotating disk 301 is rotatably connected to one side of the support base 3. The rotating disk 301 is provided with three molding grooves 302 for injection molding on the side close to the injection molding device. A protective cover 300 is fixedly connected to one side of the support base 3 through a support plate. The protective cover 300 is used to protect the rotating disk 301; Two switching disks 4, both of which are arranged in front of the rotating disk 301, and the two switching disks 4 are symmetrically arranged about the vertical center line of the support seat 3, one of the switching disks 4 is provided with two first molding grooves on the outside, and the other switching disk 4 is provided with two second molding grooves on the outside, the first molding groove and the second molding groove are both provided with injection grooves 402 for injection molding, and a switching mechanism for position change is provided on one side of the two switching disks 4; Two sets of cutting mechanisms are arranged on one side of the switching disk 4. The two sets of cutting mechanisms are respectively arranged on the two injection molding grooves 402 on the switching disk 4, and a pusher is arranged on the top of the cutting mechanism. During injection molding, the pusher pushes the cutting mechanism to open the injection molding groove 402. After the injection molding is completed, the pusher resets the cutting mechanism to cut off the plastic at the injection molding groove 402 after injection molding. Two sets of ejection mechanisms are respectively arranged on both sides of the support seat 3 and are used to eject the waste material cut off by the injection groove 402 .

[0026] In the specific implementation, two-color injection molding requires the use of a two-color mold, that is, a mold with two sets of injection molding devices, so as to inject two plastics in sequence and generate a two-color product. Therefore, in this scheme, the shaping groove 302 on the rotating disk 301 is first aligned with the first molding groove and the second molding groove on the two switching disks 4, and then the first molding is injected by the injection molding equipment to form the first molding. After the model inside the first molding groove is formed, the pusher pushes the cutting mechanism to cut off the waste at the injection groove 402, and by rotating the rotating disk 301, the first molded model is rotated to the second molding groove, and the injection molding equipment is used to cut the waste at the second molding groove. During the secondary color injection molding, during the rotation of the rotating disk 301, the switching mechanism on one side of the switching disk 4 drives the switching disk 4 to rotate, so that the ejection mechanism ejects the cut waste inside the injection groove 402 and cleans the injection groove 402. When the model after the secondary injection molding rotates 60 degrees with the rotating disk 301, an ejection device is set inside the molding groove 302 to eject the completed model. The ejection device is driven by the existing electric push rod and can be understood as the ejection device in the existing mold. This is the existing technology and will not be further described here, so as to achieve the cyclic processing of the headlight mask and improve the overall processing efficiency.

[0027] In this embodiment, Figure 3 and Figure 4 As shown, a second motor 303 is fixedly connected to the side of the support seat 3 away from the rotating disk 301, and an output shaft of the second motor 303 passes through the support seat 3 and is fixedly connected to the rotating disk 301, so as to drive the rotating disk 301 to rotate, so that the molding groove 302 is docked and adapted with the first molding groove and the second molding groove respectively, and a fixed support plate 101 is fixedly connected to the top of the operating table 1, and a first hydraulic push rod 102 is fixedly connected to the outer side of the fixed support plate 101, and the telescopic end of the first hydraulic push rod 102 is fixedly connected to the support seat 3.

[0028] In specific implementation, when the molding groove 302 needs to be replaced or cleaned, the first hydraulic push rod 102 is started to drive the support seat 3 to move, and the support seat 3 is separated from the switching disk 4, so that the molding groove 302 is cleaned, and during the processing, the output shaft of the second motor 303 is started to drive the rotating disk 301 to rotate, and the three molding grooves 302 on the rotating disk 301 are respectively subjected to the first molding and the second molding, and the model is ejected, thereby improving the overall work efficiency.

[0029] Embodiment 2: Figure 1 , Figure 2 and Fig. 9 As shown, the injection molding device includes: An injection molding machine 2 for injection molding, the injection molding machine 2 is arranged on the top of the operating table 1, and two injection molding cylinders 201 are arranged at the output end of the injection molding machine 2, and the two injection molding cylinders 201 extend to the injection molding grooves 402 on the two switching disks 4 respectively; The linear module 202 is fixedly connected to the top of the operating table 1, and the injection molding machine 2 is arranged at the moving end of the linear module 202 to drive the injection molding machine 2 to move. The linear module 202 can use a linear slide rail to drive the injection molding machine 2 to move, which is the existing technology.

[0030] Cut-off mechanisms include: Two movable plates 701, the two movable plates 701 are symmetrically arranged about the center of the injection molding groove 402, and the two movable plates 701 are fixedly connected to the cutting heads 702 on opposite sides, and the two movable plates 701 are arranged outside the switching disk 4; Two connecting plates 704, the two connecting plates 704 are respectively arranged at one end of the two moving plates 701, and the two connecting plates 704 are fixedly connected to the switching disk 4; A second telescopic rod 705 and a second spring 706, both ends of which are fixedly connected to the connecting plate 704 and the movable plate 701, respectively, and the second spring 706 is sleeved on the outside of the second telescopic rod 705; Two fixed plates 707 are fixedly connected to the top of the moving plate 701 , and fixed shafts 708 are fixedly connected to the outer sides of the two fixed plates 707 .

[0031] The cutting mechanism also includes: Two cutting rods 801, the two cutting rods 801 are respectively arranged inside the two moving plates 701, and one end of the two cutting rods 801 passes through the switching disk 4 and extends to the inside of the injection groove 402, for cutting off the excess injection; Two limit frames 703 are fixedly connected to the top of the movable plate 701. The two limit frames 703 are slidably connected with sliding shafts 802 inside. The sliding shafts 802 are fixedly connected to the truncation rod 801. When the limit frames 703 move, the truncation rod 801 is pushed to move by the sliding shafts 802.

[0032] The pushers include: The push ring 6 is in the same straight line as the center of the injection groove 402, and a first telescopic rod 602 and a first spring 603 are fixedly connected between the push ring 6 and the switching disk 4, and the first spring 603 is sleeved on the outside of the first telescopic rod 602; Two limit push frames 604 are fixedly connected to two sides of the push ring 6 respectively, and the fixed shaft 708 extends into the inside of the limit push frame 604 and is slidably connected to the limit push frame 604.

[0033] In specific implementation, when the linear module 202 on the injection molding equipment contacts the push ring 6, the linear module 202 first pushes the push ring 6 to move toward the switching disk 4, and the limit push frames 604 fixedly connected on both sides of the push ring 6 squeeze the fixed plate 707 through the fixed shaft 708, so that the two movable plates 701 move away from each other, the injection groove 402 is exposed, and the injection port at one end of the linear module 202 is connected to the injection groove 402 to ensure the smooth progress of the injection molding, and under normal conditions, the cutting head 702 can also close the injection groove 402 to prevent dust from entering the injection groove 402 and clogging the injection groove 402; When the two injection grooves 402 are relatively far apart, the limit frame 703 fixedly connected to the movable plate 701 drives the sliding shaft 802 inside the limit frame 703, so that the sliding shaft 802 drives the cutting rod 801 to tilt and rise, thereby opening the injection groove 402 channel. When the injection molding is completed, the injection cylinder 201 is away from the pushing ring 6. At this time, the pushing ring 6 is reset under the action of the first spring 603, and cooperates with the second spring 706 between the connecting plate 704 and the movable plate 701 to make the two The cutting head 702 at one end of the movable plate 701 moves relatively to cut off the injection portion between the injection groove 402 and the injection cylinder 201, and the limit frame 703 drives the cutting rod 801 to reset, and the waste material at one end of the injection groove 402 is cut off and separated from the model, firstly ensuring the completion of the model to avoid bulges caused by injection molding, and completing the separation of the waste material inside the injection groove 402 from the injection cylinder 201, which is convenient for later cleaning and avoids clogging of the injection groove 402.

[0034] In this embodiment, Figure 6 , Figure 7 and Figure 8 As shown, the switching mechanism includes: A second hydraulic push rod 504, the second hydraulic push rod 504 is fixedly connected to the top of the operating platform 1, and the telescopic end of the second hydraulic push rod 504 is fixedly connected to the mounting bracket 501; The mounting bracket 501 is slidably connected to the top of the operating table 1 , and a first motor 502 is fixedly connected to the outer side of the mounting bracket 501 . The output shaft of the first motor 502 passes through the mounting bracket 501 and is fixedly connected to the switching disk 4 .

[0035] During specific implementation, when the rotating disk 301 rotates, part of the model is in the first molding groove and the second molding groove on the two switching disks 4, so the second hydraulic push rod 504 is started to drive the mounting bracket 501 to move, and then the switching disk 4 is separated from the support seat 3. At the same time, after the waste material inside the injection groove 402 is cut off, the first motor 502 drives the switching disk 4 to rotate, and the cleaned first molding groove and the second molding groove are switched, thereby ensuring the subsequent continued operation and improving the overall production efficiency.

[0036] Embodiment 3: Fig.10 , Fig.11 and Fig.12 As shown, the ejection mechanism includes an ejection member and a linear drive member for driving the ejection member to move, and the ejection member includes: A fixed cylinder 9, a contact ring 901 is provided on one side of the fixed cylinder 9 close to the injection groove 402; A plurality of first racks 902, wherein the plurality of first racks 902 are all arranged in a ring shape around the center of the fixed cylinder 9, and the plurality of first racks 902 are all fixedly connected to the contact ring 901; A third telescopic rod 903 is fixedly connected between the first rack 902 and the fixed cylinder 9, and a third spring 904 is sleeved on the outer side of the third telescopic rod 903. Both ends of the third spring 904 are fixedly connected to the fixed cylinder 9 and the first rack 902 respectively; A gear 906 meshing with the first rack 902, the outer side of the gear 906 is rotatably connected to a mounting plate 905, and the mounting plate 905 is fixedly connected to the inside of the fixed cylinder 9; The ejector column 909 is arranged at the front side of the contact ring 901 and at the inner side of the contact ring 901; A plurality of second racks 907 are fixedly connected to the ejection column 909 , and the plurality of second racks 907 are respectively meshed with the plurality of gears 906 , and guide plates 908 are slidably connected to the outer sides of the plurality of second racks 907 , and the plurality of guide plates 908 are fixedly connected to the fixed cylinder 9 .

[0037] Linear drive components include: The driving bracket 10 is fixedly connected to the outer side of the supporting base 3, and the outer side of the driving bracket 10 is rotatably connected to a screw rod 1001; The push frame 1004 is fixedly connected to the fixed cylinder 9, and the push frame 1004 passes through the driving bracket 10 and is slidably connected to the driving bracket 10. The sliding seat 1002 is sleeved on the outside of the screw rod 1001 and connected to the screw rod 1001 through a ball nut pair, and the sliding seat 1002 is fixedly connected to the pushing frame 1004. The third motor 1003 is fixedly connected to the outside of the driving bracket 10, and the output shaft of the third motor 1003 is fixedly connected to the screw rod 1001.

[0038] In a specific implementation, when the injection molding groove 402 with the waste material cut off rotates and one side of the fixed cylinder 9 is rotated, the third motor 1003 is started at this time, the third motor 1003 drives the screw rod 1001 to rotate, the screw rod 1001 drives the sliding seat 1002 to move, so that the sliding seat 1002 drives the pushing frame 1004 to move, and the fixed cylinder 9 approaches the pushing ring 6 in the pushing member, so that the contact ring 901 contacts the pushing ring 6. Since the compression force of the third telescopic rod 903 between the first rack 902 and the third telescopic rod 903 is greater than the compression force required by the first spring 603 and the connecting plate 704, the contact ring 901 first pushes the pushing ring 6 to move, so that the two contact rings 901 and the cutting rod 801 move away from each other to open the injection groove 402. When the pushing ring 6 cannot move, the first rack 902 moves in the opposite direction relative to the fixed cylinder 9, so that the first rack 902 drives the second rack 907 to move through the meshing gear 906, so that the second rack 907 continues to descend, so that the multiple second racks 907 push the ejection column 909 to insert into the injection groove 402, and the cut-off waste in the injection groove 402 is ejected to ensure the smooth injection of the injection groove 402. After the second rack 907 is pushed out, the movable plate 701 and the cutting rod 801 are reset to ensure the protection of the cleaned injection groove 402.

[0039] A two-color overmolding injection molding method based on automobile headlight mask processing is also provided, comprising the following steps: Step 1: align the molding groove 302 on the rotating disk 301 with the first molding groove and the second molding groove on the two switching disks 4, and then perform injection molding on the first molding groove through the injection molding equipment; Step 2: After the model inside the first molding groove is formed, the pusher pushes the cutting mechanism to cut off the waste material at the injection groove 402, and by rotating the rotating disk 301, the first molded model is rotated to the second molding groove, and the injection molding equipment performs secondary color injection molding on the second molding groove; Step 3: During the rotation of the rotating disk 301, the switching mechanism on one side of the switching disk 4 drives the switching disk 4 to rotate, so that the ejection mechanism ejects the cut waste inside the injection groove 402 and cleans the injection groove 402. Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A two-color overmolding injection molding mold for automobile headlight mask processing, comprising an operating table (1), wherein an injection molding device for injection molding is arranged on the top of the operating table (1), characterized in that: Also includes: A support seat (3), the support seat (3) being arranged on the top of the operating table (1), and a rotating disk (301) is rotatably connected to one side of the support seat (3), and three molding grooves (302) for injection molding are provided on a side of the rotating disk (301) close to the injection molding device; Two switching disks (4), both of which are arranged on the front side of the rotating disk (301), and the two switching disks (4) are symmetrically arranged about the vertical center line of the support seat (3), one of the switching disks (4) is provided with two first molding grooves on the outside, and the other switching disk (4) is provided with two second molding grooves on the outside, the first molding groove and the second molding groove are both provided with injection grooves (402) for injection molding, and a switching mechanism for position change is provided on one side of the two switching disks (4); Two sets of cutting mechanisms are arranged on one side of the switching disk (4), and the two sets of cutting mechanisms are respectively arranged on two injection molding grooves (402) on the switching disk (4), and a pushing member is arranged on the top of the cutting mechanism. During injection molding, the pushing member pushes the cutting mechanism to open the injection molding groove (402), and after the injection molding is completed, the pushing member resets the cutting mechanism to cut off the plastic at the injection molding groove (402) after injection molding; Two sets of ejection mechanisms are respectively arranged on both sides of the support seat (3) and are used to eject waste material cut off by the injection molding groove (402).

2. The double-color overmolding injection molding mold based on automobile lamp mask processing according to claim 1 is characterized in that: A second motor (303) is fixedly connected to the side of the support seat (3) away from the rotating disk (301); an output shaft of the second motor (303) passes through the support seat (3) and is fixedly connected to the rotating disk (301) for driving the rotating disk (301) to rotate so that the shaping groove (302) is docked and adapted with the first shaping groove and the second shaping groove, respectively; a fixed support plate (101) is fixedly connected to the top of the operating table (1); a first hydraulic push rod (102) is fixedly connected to the outer side of the fixed support plate (101); and a telescopic end of the first hydraulic push rod (102) is fixedly connected to the support seat (3).

3. The double-color overmolding injection molding mold based on automobile lamp mask processing according to claim 1 is characterized in that: The cutting mechanism comprises: Two movable plates (701), the two movable plates (701) are symmetrically arranged about the center of the injection molding groove (402), and the two movable plates (701) are fixedly connected to the cutting heads (702) on opposite sides, and the two movable plates (701) are arranged on the outside of the switching disk (4); Two connecting plates (704), the two connecting plates (704) are respectively arranged at one end of the two movable plates (701), and the two connecting plates (704) are both fixedly connected to the switching disk (4); A second telescopic rod (705) and a second spring (706), wherein two ends of the second telescopic rod (705) and the second spring (706) are respectively fixedly connected to the connecting plate (704) and the movable plate (701), and the second spring (706) is sleeved on the outside of the second telescopic rod (705); Two fixed plates (707) are fixedly connected to the top of the movable plate (701), and fixed shafts (708) are fixedly connected to the outer sides of the two fixed plates (707).

4. The two-color overmolding injection molding mold based on automobile lamp mask processing according to claim 3 is characterized in that: The cutting mechanism also includes: Two cutting rods (801), the two cutting rods (801) are respectively arranged inside the two movable plates (701), and one end of the two cutting rods (801) passes through the switching disk (4) and extends into the injection molding groove (402), so as to cut off the excess injection molding; Two limit frames (703) are fixedly connected to the top of the movable plate (701), and the two limit frames (703) are slidably connected with sliding shafts (802) inside. The sliding shafts (802) are fixedly connected to the truncation rod (801). When the limit frames (703) move, the truncation rod (801) is pushed to move by the sliding shafts (802).

5. The double-color overmolding injection molding mold based on automobile lamp mask processing according to claim 4 is characterized in that: The pusher comprises: A push ring (6), wherein the push ring (6) and the center of the injection groove (402) are in the same straight line, and a first telescopic rod (602) and a first spring (603) are fixedly connected between the push ring (6) and the switching disk (4), and the first spring (603) is sleeved on the outside of the first telescopic rod (602); Two limit push frames (604) are respectively fixedly connected to two sides of the push ring (6), and the fixed shaft (708) extends into the inside of the limit push frame (604) and is slidably connected to the limit push frame (604).

6. The two-color overmolding injection molding mold based on automobile lamp mask processing according to claim 1 is characterized in that: The ejection mechanism includes an ejection member and a linear driving member for driving the ejection member to move, and the ejection member includes: A fixed cylinder (9), wherein a contact ring (901) is provided on a side of the fixed cylinder (9) close to the injection molding groove (402); A plurality of first racks (902), the plurality of first racks (902) are all arranged in a ring shape around the center of the fixed cylinder (9), and the plurality of first racks (902) are all fixedly connected to the contact ring (901); A third telescopic rod (903) is fixedly connected between the first rack (902) and the fixed cylinder (9), a third spring (904) is sleeved on the outside of the third telescopic rod (903), and two ends of the third spring (904) are respectively fixedly connected to the fixed cylinder (9) and the first rack (902); A gear (906) meshingly connected to the first rack (902), the outer side of the gear (906) being rotatably connected to a mounting plate (905), and the mounting plate (905) being fixedly connected to the interior of the fixed cylinder (9); An ejector column (909), the ejector column (909) is arranged on the front side of the contact ring (901) and on the inner side of the contact ring (901); A plurality of second racks (907) are fixedly connected to the ejection column (909), the plurality of second racks (907) are respectively meshedly connected to the plurality of gears (906), and the outer sides of the plurality of second racks (907) are all slidably connected to guide plates (908), and the plurality of guide plates (908) are fixedly connected to the fixed cylinder (9).

7. The two-color overmolding injection molding mold based on automobile lamp mask processing according to claim 6 is characterized in that: The linear drive member comprises: A driving bracket (10), the driving bracket (10) is fixedly connected to the outside of the support base (3), and the outside of the driving bracket (10) is rotatably connected to a screw rod (1001); A pushing frame (1004), the pushing frame (1004) is fixedly connected to the fixed cylinder (9), and the pushing frame (1004) passes through the driving bracket (10) and is slidably connected to the driving bracket (10). The sliding seat (1002) is sleeved on the outside of the screw rod (1001) and connected to the screw rod (1001) via a ball nut pair, and the sliding seat (1002) is fixedly connected to the pushing frame (1004). The outside of the driving bracket (10) is fixedly connected to a third motor (1003), and the output shaft of the third motor (1003) is fixedly connected to the screw rod (1001).

8. The two-color overmolding injection molding mold based on automobile lamp mask processing according to claim 1 is characterized in that: The switching mechanism comprises: A second hydraulic push rod (504), the second hydraulic push rod (504) is fixedly connected to the top of the operating table (1), and the telescopic end of the second hydraulic push rod (504) is fixedly connected to the mounting bracket (501); A mounting bracket (501) is slidably connected to the top of the operating table (1), and a first motor (502) is fixedly connected to the outside of the mounting bracket (501), and an output shaft of the first motor (502) passes through the mounting bracket (501) and is fixedly connected to the switching disk (4).

9. The two-color overmolding injection molding mold based on automobile lamp mask processing according to claim 1 is characterized in that: The injection molding device comprises: An injection molding machine (2) for injection molding, the injection molding machine (2) being arranged on the top of the operating table (1), and having two injection molding cylinders (201) arranged at the output end of the injection molding machine (2), the two injection molding cylinders (201) respectively extending to the injection molding grooves (402) on the two switching disks (4); A linear module (202) is fixedly connected to the top of the operating table (1), and the injection molding machine (2) is arranged at the moving end of the linear module (202) to drive the injection molding machine (2) to move.

10. A two-color overmolding injection molding method based on automobile headlight mask processing, applicable to the two-color overmolding injection molding mold based on automobile headlight mask processing as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: aligning the shaping groove (302) on the rotating disk (301) with the first shaping groove and the second shaping groove on the two switching disks (4), and then performing injection molding on the first shaping part by using an injection molding device; Step 2: After the model inside the first molding groove is formed, the pusher pushes the cutting mechanism to cut off the waste material at the injection molding groove (402), and by rotating the rotating disk (301), the first molded model is rotated to the second molding groove, and the injection molding equipment performs secondary color injection molding on the second molding groove; Step 3: During the rotation of the rotating disk (301), the switching mechanism on one side of the switching disk (4) drives the switching disk (4) to rotate, so that the ejection mechanism ejects the cut waste inside the injection groove (402) to clean the injection groove (402).

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