Rotary double-color mold for automobile roof handle

Abstract

The rotary double-color mold comprises a plate A, a plate B and a bottom plate, a fixed mold core and a movable mold core which are matched in a mold closing mode are arranged in the plate A and the plate B respectively, square iron is arranged between the plate B and the bottom plate, and two different fixed mold cavities are formed in the fixed mold core; the movable mold core is composed of a positioning mold core arranged on the plate B and two independent inserts vertically fixed to the square iron, the positioning mold core is provided with two first movable mold cavities vertically corresponding to the fixed mold cavities, and the top ends of the two independent inserts are each provided with a second movable mold cavity; the plate B is provided with a driving mechanism which is only used for driving the positioning mold core to rotate by 180 degrees; according to the double-color mold, only other parts of the movable mold core need to be rotated by 180 degrees, the fixed mold cavity and the movable mold cavity discharge glue for injection molding at the same time, high-quality products can be obtained through synchronous and rapid 360-degree coating injection molding of soft glue and hard glue, the injection molding products do not need to be lifted and turned over, the design difficulty of the double-color mold is greatly reduced, the cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of moulds, in particular to a rotary double-color mould for a car roof handle. Background Art

[0002] A two-color mold is a mold that uses two plastic materials to be molded on the same injection molding machine. The molding process is divided into two steps, but the product is only ejected once. This molding process is also called double-material injection molding. It is usually completed with a set of molds and requires a special two-color injection molding machine. Figure 1 The ceiling handle of high-end cars in China, the middle part of the handle is the hand-gripping part, and the soft glue is used to fully cover the hard glue 360 ​​degrees. The appearance requirements are extremely high, and the difference in the parting line segment should be uniform and controlled within 0.02mm. In addition, the product surface should be smooth, without shrinkage marks, air marks, bright prints, color differences, etc., which is enough to show the high requirements for mold precision. This kind of ceiling handle is not suitable for using a rubber-coated mold, nor can it be made according to the traditional rotary two-color mold, because the precision of the rubber-coated mold cannot meet the requirements; and the traditional rotary two-color mold cannot achieve 360-degree soft glue coating of the fixed and movable molds. The traditional two-color mold structure is that the two fixed mold cavities are different, while the two movable mold cavities are exactly the same. In order to achieve 360-degree soft glue coating, the injection molded product has to be lifted and then turned 180 degrees, or some two-color molds can achieve 360-degree coating by rotating and turning the lower mold 180 degrees. However, this structural design adds a lot of difficulty to the mold itself, high cost, and prolongs the product injection molding time. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a rotary two-color mold for a car roof handle to solve the above problems.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] A rotary two-color mold for a car roof handle comprises an A plate, a B plate and a bottom plate, wherein the A plate and the B plate are respectively provided with a fixed mold core and a movable mold core that are matched with each other, a square iron is provided between the B plate and the bottom plate, and a guide column is provided on the square iron, and the guide column passes through the guide holes on the B plate and the A plate in sequence, and the fixed mold core is provided with two different fixed mold cavities, one fixed mold cavity is used for hard plastic injection molding of the handle shape, and the other fixed mold cavity is used for soft plastic injection molding of the middle part of the handle; the movable mold core is composed of a positioning core arranged on the B plate and two independent inserts vertically fixed on the square iron, and the positioning core is provided with two fixed mold cavities that are connected to the fixed mold core. The upper and lower parts of the model cavity correspond to the movable model cavity 1, and the tops of the two independent inserts are respectively provided with movable model cavities 2 of different sizes, and the movable model cavity 2 matches the shape of the middle part of the handle, and the positioning core is provided with a movable cavity that runs through from top to bottom. When the mold is closed, the independent insert passes through the movable cavity and cooperates with the positioning core to form a movable mold core. At the same time, the movable model cavity 1 and the movable model cavity 2 cooperate with the fixed model cavity to form a cavity for injection molding the handle; the B plate is provided with a driving mechanism that is only used to drive the positioning core to rotate 180°. After the handle completed with hard plastic injection molding is rotated 180°, the secondary mold closing is performed to complete the soft plastic injection molding of the middle part of the handle.

[0006] In the above invention, further, the fixed model cavity, the movable model cavity 1 and the movable model cavity 2 are all provided with glue injection holes.

[0007] In the above invention content, further, the driving mechanism includes a rotating shaft installed in the middle of the lower surface of the positioning core, a gear group arranged on the rotating shaft and a cylinder fixed on the side of the B plate, and the telescopic end of the cylinder is connected to a rack meshing with the gear group. The cylinder drives the rack to move back and forth to drive the positioning core to rotate.

[0008] In the above invention content, further, the B plate is also provided with a seat for fixing the oil cylinder and a connecting block fixedly connected to the seat, the connecting block is placed on the lower surface of the B plate, and the connecting block is provided with a limit assembly for limiting the movement stroke of the rack, the limit assembly includes a stroke groove 1 arranged on the connecting block and arranged along the length direction of the rack, a pair of stroke switches and a positioning rod, the pair of stroke switches are respectively arranged at both ends of the stroke groove 1, and the positioning rod is fixed on the rack and placed in the stroke groove 1.

[0009] In the above invention, further, the movable mold core is circular, and a wear-resistant block is provided on one side of the rack.

[0010] In the above invention, further, a protruding pressure foot is provided on the circumference of the movable mold core, and an annular pressure block is fixed on the upper surface of the B plate, and the annular pressure block is placed above the pressure foot to limit the axial movement of the movable mold core.

[0011] In the above invention, further, a semicircular limiting groove is provided on the movable mold core, and a limiting guide rod placed in the semicircular limiting groove is fixed on the B plate.

[0012] In the above invention, further, a plurality of limit pins are fixed on the lower surface of the B plate, and a second travel groove corresponding to the limit pins and arranged along the vertical direction is provided in the square iron, and the nail cap end of the limit pin is placed in the second travel groove.

[0013] In the above invention, further, a plurality of positioning blocks are provided on the upper surface of the square iron, and grooves corresponding to the positioning blocks are provided on the lower surface of the B plate.

[0014] In the above invention, further, the A plate and the B plate are also provided with a buckle machine.

[0015] The beneficial effects of the present invention are:

[0016] The two-color mold of the present invention only needs to rotate the other parts of the dynamic mold core 180° while ensuring that the two separate inserts with inconsistent glue positions on the dynamic mold core remain stationary, and the fixed mold cavity and the dynamic mold cavity are simultaneously injected with glue, which can achieve synchronous and rapid 360° coating injection molding of soft and hard glue to produce high-quality products, without the need to lift and then flip the injection-molded products, greatly reducing the design difficulty of the two-color mold, and achieving a material saving rate of more than 50%, reducing equipment investment costs; at the same time, the rotation of the other parts of the dynamic model core is achieved during the mold opening process, which shortens the product production cycle to the maximum extent, greatly improves production efficiency, and significantly improves the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is an injection molding structure of a car roof handle;

[0018] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 3 A three-dimensional diagram of the present invention from a bottom-up perspective;

[0020] Figure 4 It is a schematic diagram of the split structure of the movable mold core of the present invention;

[0021] Figure 5 It is a schematic diagram of the back side of the movable mold core of the present invention;

[0022] Figure 6 This is a state diagram of the present invention when the mold is closed;

[0023] Figure 7 This is a state diagram of the present invention when the mold is opened for the first time;

[0024] Figure 8It is a state diagram of the second mold opening of the present invention.

[0025] In the figure, 10-A plate, 20-B plate, 30-bottom plate, 40-fixed mold core, 41, 42-fixed model cavity, 50-movable mold core, 51-positioning core, 511, 512-movable model cavity one, 52-independent insert, 521, 522-movable model cavity two, 53-movable cavity, 60-square iron, 70-driving mechanism, 71-rotating shaft, 72-gear set, 73-oil cylinder, 74-rack, 741-wear-resistant block, 75-seat, 76-connecting block, 77-stroke groove one, 78-stroke switch, 79-positioning rod, 80-presser foot, 81-annular pressure block, 90-limiting nail, 91-stroke groove two, 100-guide column, 110-positioning block, 120-buckle machine. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0027] Please see attached Figure 1-3 As shown, a rotary two-color mold for a car roof handle is used for injection molding. Figure 1 The handle shown in the figure, in the first step, needs to be injection molded with hard plastic material PP for the overall shape of the handle, and in the second step, the middle part of the handle is injection molded with soft plastic material TEPP, and the rotating two-color mold includes an A plate 10, a B plate 20 and a bottom plate 30, wherein the A plate 10 and the B plate 20 are respectively provided with a fixed mold core 40 and a movable mold core 50 for mold closing, and a square iron 60 is provided between the B plate 20 and the bottom plate 30, and the square iron 60 is used to support the B plate 20 and the A plate 10 during mold closing, and a guide column 100 is provided on the square iron 60, and the guide column 100 passes through the guide holes (not shown in the drawings) on the B plate 20 and the A plate 10 in sequence, so that the B plate 20 and the A plate 10 move up and down along the guide column 100;

[0028] As attached Figure 3 As shown, the fixed part of the fixed mold core 40 is immovable, and two different fixed mold cavities 41 and 42 are provided on the fixed mold core 40. The fixed mold cavities 41 and 42 are used for injection molding the upper half of the handle. One fixed mold cavity 41 is used for hard plastic injection molding of the handle shape, and the other fixed mold cavity 42 is used for soft plastic injection molding of the middle part of the handle. The diameter of the soft plastic part corresponding to the fixed mold cavity 42 is slightly larger than the diameter of the middle part of the fixed mold cavity 42 to adapt to the soft plastic injection molding.

[0029] Please see attached Figure 4 As shown, the movable mold core 50 in this embodiment adopts a split structure. The movable mold core 50 is composed of a positioning core 51 set on the B plate 20 and two independent inserts 52 vertically fixed on the square iron 60. The positioning core 51 can move up and down relative to the two independent inserts 52. The positioning core 51 is provided with two movable mold cavities 1 511 and 512 corresponding to the fixed mold cavities 41 and 42 up and down. The movable mold cavities 1 511 and 512 only match the shapes of the two ends of the handle; the tops of the two independent inserts 52 are respectively provided with movable mold cavities 2 521 and 522 of different sizes, and the movable mold cavities 2 521 and 522 match the shape of the middle part of the handle (i.e., the hand-holding part). The movable mold cavity 1 511 and the movable mold cavity 2 521 cooperate to form a half shape of the handle when the mold is closed, and the movable mold cavity 2 521 corresponds to the fixed mold cavity 41, and the movable mold cavity 2 522 corresponds to the fixed mold cavity 42, and the corresponding relationship remains unchanged;

[0030] The positioning core 51 is provided with an active cavity 53 which passes through from top to bottom. When the mold is closed, the independent insert 52 passes through the active cavity 53 and cooperates with the positioning core 51 to form a movable mold core 50. At the same time, the movable mold cavity 1 and the movable mold cavity 2 cooperate with the fixed mold cavity 2 to form a hard plastic injection molding cavity and a soft plastic injection molding cavity for injection molding of the handle; wherein, the movable mold cavity 1 511, the movable mold cavity 2 521 and the fixed mold cavity 41 are used for hard plastic injection molding of the shape of the handle, and the movable mold cavity 1 512, the movable mold cavity 2 522 and the fixed mold cavity 42 are used for soft plastic injection molding covering the middle of the handle;

[0031] The movable mold core 50 adopts a split structure, with two independent inserts 52 fixed and only the positioning core 51 rotatably installed on the B plate 20. The B plate 20 is provided with a driving mechanism 70 that is only used to drive the positioning core 511 to rotate 180°, thereby driving the two movable model cavities 511 and 512 to rotate 180°. After the handle completed by hard plastic injection molding is rotated 180°, a secondary mold is performed to complete the soft plastic injection molding of the middle part of the handle.

[0032] Among them, the fixed model cavity 41, 42, the movable model cavity one 511, 512 and the movable model cavity two 521, 522 are all provided with injection holes (not marked in the drawings), so that the injection material can be discharged from the fixed model cavity 41, 42 and the movable model cavity respectively, especially in the soft glue coating injection molding, so that the soft glue can cover the hard glue 360°, thereby improving the injection molding accuracy and surface smoothness of the product.

[0033] Please see attached Figure 5As shown, the driving mechanism 70 includes a rotating shaft 71 installed in the middle of the lower surface of the positioning core 51, a gear set 72 arranged on the rotating shaft 71 and a cylinder 73 fixed on the side of the B plate 20. The telescopic end of the cylinder 73 is connected to a rack 74 meshing with the gear set 72. The rack 74 is driven back and forth by the cylinder 73 to drive the positioning core 51180° to rotate. Only in the open mode, the A plate and the B plate 20 move upward, and the two independent inserts 52 exit the movable mold core 50, can the positioning core 51 be driven to rotate. After rotating 180°, the two movable model cavities 511 and 512 are still aligned with the two independent inserts 52 after exchanging positions. After the secondary mold closing, a complete handle shape hard plastic injection and a soft plastic injection cavity in the middle of the handle are still formed.

[0034] In the above embodiment, preferably, the B plate 20 is further provided with a seat 75 for fixing the oil cylinder 73 and a connecting block 76 fixedly connected to the seat 75, the connecting block 76 is placed on the lower surface of the B plate 20, and the connecting block 76 is provided with a limit assembly for limiting the movement stroke of the rack 74, the limit assembly includes a travel groove 77 arranged on the connecting block 76 and arranged along the length direction of the rack 74, a pair of travel switches 78 and a positioning rod 79, the pair of travel switches 78 are respectively arranged at both ends of the travel groove 77, the travel switch 78 has a function similar to that of a sensor, and the positioning rod 79 is fixed to the rack 7 4 and is placed in the stroke groove 1 77; specifically, when the oil cylinder 73 drives the rack 74 to move forward, the rack 74 drives the positioning core 51 to rotate by meshing with the gear set 72, and the positioning rod 79 also moves along the length direction in the stroke groove 1 77 until the stroke groove 1 77 touches the stroke switch 78 at the front end, the oil cylinder 73 stops working, and the positioning core 51 just rotates 180°. Through a pair of stroke switches 78, the rotation angle of the positioning core 51 can be accurately increased to ensure that the movable model cavity 1 511, 512 and the movable model cavity 2 521, 522 are respectively aligned to form the cavity, thereby ensuring the injection molding quality of the product.

[0035] The movable mold core 50 is circular, so that the movable mold core 50 can only rotate in the B plate 20, ensuring the stability and safety of the movable mold core 50 during the rotation process. At the same time, in order to increase the service life of the mold, a wear-resistant block 741 is also provided on one side of the rack 74.

[0036] In the above embodiment, preferably, a protruding presser foot 80 is provided on the circumference of the movable mold core 50, and an annular pressure block 81 is fixed on the upper surface of the B plate 20. The annular pressure block 81 is placed above the presser foot 80 to limit the axial movement of the movable mold core 50. At the same time, it can not only ensure the normal rotation of the movable mold core 50, but also move with the B plate 20 during the closing and opening process of the A plate 10 and the B plate 20.

[0037] In order to further improve the production quality of the product and prevent obvious defects on the product surface, it is necessary to ensure that the accuracy of each rotation is 180°. Therefore, a semicircular limit groove is also provided on the movable mold core 50, and a limit guide rod placed in the semicircular limit groove is fixed on the B plate 20. The limit guide rod is fixed so that the movable mold core 50 can only rotate 180° each time under the action of the limit groove and the limit rod.

[0038] Please see attached Figure 6 As shown, a plurality of limit pins 90 are fixed to the lower surface of the B plate 20, and a second travel groove 91 corresponding to the limit pin 90 and arranged along the vertical direction is provided in the square iron 60, and the nail cap end of the limit pin 90 is placed in the second travel groove 91, and the mold opening distance is accurately controlled by the limit pin 90 and the second travel groove 91 to ensure that the independent insert 52 completely withdraws from the active cavity 53, so that the movable mold core 50 can rotate smoothly.

[0039] As attached Figure 7 As shown, a plurality of positioning blocks 110 are further provided on the upper surface of the square iron 60 , and grooves corresponding to the positioning blocks 110 are provided on the lower surface of the B plate 20 .

[0040] As attached Figure 2 and attached Figure 6 As shown, the A plate 10 and the B plate 20 are also provided with a buckle machine 120, which is used to control the sequence of mold closing and mold closing of the A plate 10 and the B plate 20 to avoid mutual interference and ensure the yield and efficiency of injection molding production. The buckle machine 120 used in this embodiment is a common buckle machine 120 in existing two-color molds, and the specific mechanism is not repeated here.

[0041] Working principle:

[0042] When the mold is closed for the first injection, Figure 6 As shown, the lower surface of the B plate 20 contacts the upper surface of the square iron 60, and the fixed mold cavity 41 and the movable mold cavity 1 511 and the movable mold cavity 2 521 are discharged to perform hard plastic injection molding of the handle shape, completing the hard plastic injection molding of the handle;

[0043] When opening the mold for the first time, Figure 7 As shown, the A plate 10 and the B plate 20 are moved upward together by the mechanical movement of the buckle machine 120 to separate the lower surface of the B plate 20 from the square iron 60. At this time, the A plate 10 and the B plate 20 are still attached together, and the independent insert 52 gradually withdraws from the active cavity 53. The mold opening distance of the B plate 20 is controlled by the limit pin 90 until the independent insert 52 is completely withdrawn from the active cavity 53 or the positioning core 51.

[0044] When opening the mold for the second time, if the Figure 8As shown, the B plate 20 does not move, and the A plate 10 continues to move upward along the guide column 100 relative to the B plate 20 to complete the second mold opening, exposing the movable mold core 50 and the hard plastic injection molded handle on the movable mold core 50. At this time, the hard plastic injection molded handle is respectively aligned with the fixed mold cavity 41 and the movable mold cavity 2 521, and then, the oil cylinder 73 drives the positioning core 51180° to rotate, so that the hard plastic injection molded handle on the positioning core 51 is rotated 180° from the hard plastic injection mold cavity to the soft plastic injection mold cavity, that is, after the rotation, the upper and lower parts are respectively aligned with the fixed mold cavity 42 and the movable mold cavity 2 522;

[0045] Then the A plate 10 moves downward to complete the mold closing with the B plate 20, and the A plate 10 and the B plate 20 move downward together until the B plate 20 contacts the surface of the square iron 60 to complete the mold closing of the entire two-color mold. During the downward movement of the B plate 20, the square iron 60 is gradually inserted into the movable cavity 53 and cooperates with the positioning core 51 to form a complete movable mold core 50. The movable mold cavity 1 512 and the movable mold cavity 2 522 cooperate with the fixed mold cavity 42 to form a soft glue injection molding cavity, and the hard glue injection molded handle is fixed in the soft glue injection molding cavity when the mold is closed, and then only the middle part of the fixed mold cavity 42 and the movable mold cavity 2 522 are used to discharge glue to realize 360° soft glue coating injection molding of the middle part of the handle;

[0046] During the soft-glue overmolding, the hard-glue injection molding cavity on the other side is also performing the above-mentioned hard-glue injection molding of the handle, thereby shortening the product production cycle to the maximum extent and improving production efficiency.

[0047] The two-color mold of the present invention only needs to rotate the other parts of the dynamic mold core 180° while ensuring that the two separate inserts with inconsistent glue positions on the dynamic mold core 50 remain stationary, and the fixed mold cavity and the dynamic mold cavity are simultaneously injected with glue, which can achieve synchronous and rapid 360° coating injection of soft and hard glue to produce high-quality products without lifting and flipping the injection molded product, greatly reducing the design difficulty of the two-color mold, achieving a material saving rate of more than 50%, and reducing equipment investment costs.

[0048] The above-mentioned embodiments only express the specific implementation methods of the present invention. The technical solution of the present invention can not only be used for injection molding of automobile roof handles, but also can be used for double-material injection molding of other products by simply changing the shape of the cavity. The description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several deformations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

[0049] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

Claims

1. A rotary two-color mold for a car roof handle, comprising an A plate (10), a B plate (20) and a bottom plate (30), wherein the A plate (10) and the B plate (20) are respectively provided with a fixed mold core (40) and a movable mold core (50) for mold matching, characterized in that: A square iron (60) is provided between the B plate (20) and the bottom plate (30), and a guide column (100) is provided on the square iron (60), and the guide column (100) passes through the guide holes on the B plate (20) and the A plate (10) in sequence; the fixed mold core (40) is provided with two different fixed mold cavities (41, 42), one fixed mold cavity (41) is used for hard plastic injection molding of the handle shape, and the other fixed mold cavity (42) is used for soft plastic injection molding of the middle part of the handle; the movable mold core (50) is composed of a positioning core (51) arranged on the B plate (20) and two independent inserts (52) vertically fixed on the square iron (60), and the positioning core (51) is provided with two movable mold cavities (511, 512) corresponding to the fixed mold cavities (41, 42) above and below, and the two independent inserts (52) are provided on the positioning core (51). The top of the component (52) is respectively provided with two movable model cavities (521, 522) of different sizes, the two movable model cavities (521, 522) match the shape of the middle part of the handle, and the positioning core (51) is provided with a movable cavity (53) that passes through from top to bottom. When the mold is closed, the independent insert (52) passes through the movable cavity (53) and cooperates with the positioning core (51) to form a movable mold core (50). At the same time, the movable model cavity (511, 512) and the movable model cavity (521, 522) cooperate with the fixed model cavity (41, 42) to form a cavity for injection molding the handle; the B plate (20) is provided with a driving mechanism (70) that is only used to drive the positioning core (51) to rotate 180 degrees, and the handle completed by hard plastic injection molding is rotated 180 degrees and then a secondary mold closing is performed to complete the soft plastic injection molding of the middle part of the handle.

2. A rotary two-color mold for a car roof handle according to claim 1, characterized in that: The fixed model cavity (41, 42), the first movable model cavity (511, 512) and the second movable model cavity (521, 522) are all provided with glue injection holes.

3. The rotary two-color mold for a car roof handle according to claim 1, characterized in that: The driving mechanism (70) comprises a rotating shaft (71) installed in the middle of the lower surface of the positioning core (51), a gear set (72) arranged on the rotating shaft (71), and an oil cylinder (73) fixed to the side of the B plate (20), wherein the telescopic end of the oil cylinder (73) is connected to a rack (74) meshing with the gear set (72), and the oil cylinder (73) drives the rack (74) to move back and forth to drive the positioning core (51) to rotate.

4. The rotary two-color mold for a car roof handle according to claim 3, characterized in that: The B plate (20) is also provided with a seat (75) for fixing the oil cylinder (73) and a connecting block (76) fixedly connected to the seat (75); the connecting block (76) is placed on the lower surface of the B plate (20); and the connecting block (76) is provided with a limit assembly for limiting the movement stroke of the rack (74); the limit assembly comprises a stroke groove (77) arranged on the connecting block (76) and arranged along the length direction of the rack (74), a pair of stroke switches (78) and a positioning rod (79); the pair of stroke switches (78) are respectively arranged at both ends of the stroke groove (77); and the positioning rod (79) is fixed on the rack (74) and placed in the stroke groove (77).

5. The rotary two-color mold for a car roof handle according to claim 4, characterized in that: The movable mold core (50) is circular, and a wear-resistant block (741) is provided on one side of the rack (74).

6. The rotary two-color mold for a car roof handle according to claim 5, characterized in that: A protruding presser foot (80) is provided on the circumference of the movable mold core (50), and an annular press block (81) is fixed on the upper surface of the B plate (20). The annular press block (81) is placed above the presser foot (80) to limit the axial movement of the movable mold core (50).

7. The rotary two-color mold for a car roof handle according to claim 5, characterized in that: The movable mold core (50) is also provided with a semicircular ring-shaped limiting groove (82), and a limiting guide rod (83) placed in the semicircular ring-shaped limiting groove (82) is fixed on the B plate (20).

8. The rotary two-color mold for a car roof handle according to claim 1, characterized in that: A plurality of limiting pins (90) are fixed to the lower surface of the B plate (20), and a second travel groove (91) corresponding to the limiting pins (90) and arranged along the vertical direction is provided in the square iron (60), and the nail cap end of the limiting pin (90) is placed in the second travel groove (91).

9. The rotary two-color mold for a car roof handle according to claim 1, characterized in that: The upper surface of the square iron (60) is also provided with a plurality of positioning blocks (110), and the lower surface of the B plate (20) is provided with grooves corresponding one to one with the positioning blocks (110).

10. The rotary two-color mold for a car roof handle according to claim 1, characterized in that: The A plate (10) and the B plate (20) are also provided with a buckle machine (120).

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