A double-color injection mold for a center console instrument panel of an automobile

Abstract

This invention provides a two-color injection mold for an automotive center console dashboard, including a rear seat plate, two cavities, a front seat plate, and a first core and a second core. The first core and the second core can be molded with different cavities. A first sliding block is installed on the cavity, and a forming protrusion and a first inclined push block are provided on the first core. The first inclined push block is used to push the first sliding block toward the forming protrusion to form the side panel of the product in one step. A second inclined push block, a second sliding block, and an inclined guide post are installed on the second core. The second sliding block can move toward the first sliding block to form the side panel in a second step. The inclined guide post is used to drive the first sliding block to disengage from the product during mold opening. The two-color injection mold for an automotive center console dashboard provided by this invention completes two injections of the product using one mold, requiring only one demolding, eliminating the need for material handling, resulting in high injection efficiency, high demolding quality, good injection quality, and low manufacturing cost.

Description

Technical Field

[0001] This invention relates to the field of injection mold technology, specifically to a two-color injection mold for an automotive center console dashboard. Background Technology

[0002] In the automotive manufacturing industry, the dashboard, as an important functional and decorative component inside the vehicle, has a crucial impact on product quality, production efficiency, and cost control due to its manufacturing process. Currently, some dashboards are manufactured using a two-stage injection molding process; first, the first injection molding is completed in one set of molds, then the finished product is removed and placed into another set of molds for a second injection molding.

[0003] However, this process has several problems that urgently need to be solved. First, after each injection molding, the workpiece must be removed and placed into another mold, a complex process that significantly reduces injection molding efficiency. In large-scale production scenarios, frequent removal and placement operations will significantly extend the overall production cycle, making it difficult to meet rapidly growing market demand. Second, multiple demolding and product removal processes undoubtedly increase the risk of product damage, thereby increasing the defect rate and resulting in poor injection molding quality. Finally, the two-stage injection molding process requires the use of two sets of molds, which significantly increases mold costs, leading to high product manufacturing costs and a heavy financial burden on enterprises. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of this, the present invention provides a two-color injection mold for automotive central control dashboards, which completes two injections of the product using a single mold, requires only one demolding, eliminates the need for material handling, has high injection efficiency, high demolding quality, good injection quality, and low manufacturing cost.

[0006] (II) Technical Solution

[0007] To solve the aforementioned technical problem, the present invention provides a two-color injection mold for an automotive center console dashboard, comprising a rear seat plate, two cavities symmetrically and spaced apart on the rear seat plate, a front seat plate opposite to the rear seat plate, and a first core and a second core corresponding to and spaced apart on the front seat plate. The rear seat plate can slide and rotate relative to the front seat plate, so that the first core and the second core can be molded with different cavities.

[0008] A first sliding block is slidably mounted on the cavity. The first core is provided with a forming protrusion and a first inclined push block corresponding to the first sliding block. The first inclined push block is used to push the first sliding block toward the forming protrusion when the mold is closed to form the side plate of the product in one step. The second core is provided with a second inclined push block, a slidable second sliding block, and an inclined guide post corresponding to the first sliding block. The second inclined push block is used to restrict the first sliding block from detaching from the product when the mold is closed. The second sliding block can move toward the first sliding block to form the side plate in a secondary step. The inclined guide post is used to drive the first sliding block to detach from the product's glue position when the mold is opened.

[0009] This solution uses a single mold to complete two injection molding processes for the product, requiring only a single demolding. It eliminates the need for material handling, resulting in high injection efficiency, high demolding quality, good injection quality, and low manufacturing costs. Furthermore, the combination of the first and second sliding blocks and the molding protrusions facilitates the two-stage molding of the product's side panels, ensuring high molding quality and easy demolding.

[0010] In some embodiments, the first slide block is provided with a receiving groove for accommodating the inclined guide post, and retractable elastic blocks are installed on both sides of the inner wall of the receiving groove. The end of the elastic block is provided with a first inclined baffle. When the mold is closed, the inclined guide post drives the elastic block to retract through the first inclined baffle, so that the inclined guide post passes over the elastic block and enters the inner side of the receiving groove. When the mold is opened, the inclined guide post pushes the first slide block to disengage from the product glue position through the elastic block.

[0011] In some embodiments, the first inclined push block and the second inclined push block are respectively provided with a second inclined baffle, and the end of the first sliding block is provided with a third inclined baffle adapted to the second inclined baffle.

[0012] In some embodiments, the cavity has at least one elastic clamp installed at the bottom of the first sliding block, and the bottom of the first sliding block has a clamping post that can engage with the elastic clamp. When the mold is closed, the first inclined push block pushes the first sliding block to slide, and the clamping post disengages from the elastic clamp. When the mold is opened, the inclined guide post pushes the first sliding block to slide, causing the clamping post to engage with the elastic clamp. This design, through the cooperation of the clamping post and the elastic clamp, can lock the first sliding block, preventing its movement from interfering with the ejection of the finished product and ensuring demolding quality; it also prevents the first sliding block from sliding when the rear seat plate rotates relative to the front seat plate.

[0013] In some embodiments, the second sliding block is connected to a hydraulic cylinder drive, the hydraulic cylinder being used to drive the second sliding block to slide; the hydraulic cylinder drive is connected to a drive block, the drive block being provided with a T-shaped block, and the end of the second sliding block near the drive block being provided with an inclined guide groove adapted to the T-shaped block. In this solution, the second sliding block is driven by a hydraulic cylinder, which facilitates mold closing and demolding, and has a simpler structure.

[0014] In some embodiments, two front molds are installed at intervals on the front seat plate, and the first core and the second core are fixed on the corresponding front molds; a hydraulic cylinder is installed on one side of the front mold via a hydraulic cylinder seat, and the drive block is slidably installed in the hydraulic cylinder seat.

[0015] In some embodiments, multiple angled core pullers are installed within the cavity, and these angled core pullers are used to form the undercut portion of the product. Two rear molds are symmetrically installed on the rear plate, and the cavity is fixed to the corresponding rear mold. A guide block for guiding the angled core pullers is installed between the rear mold and the cavity. An ejector plate is slidably installed on one side of the rear mold, and a guide seat is installed on the ejector plate. The guide seat is provided with a guide groove. One end of the angled core puller passes through the rear mold and is slidably connected to the guide seat. A guide post adapted to the guide groove is installed at the end of the angled core puller. This solution uses angled core pullers to form the undercut portion of the product, combined with a secondary demolding structure, which facilitates the forming and demolding of the undercut portion. The overall demolding quality is high, and demolding is simple and convenient.

[0016] In some embodiments, a plurality of straight ejector rods are installed in the cavity, the straight ejector rods being used to assist in molding the product; an ejector base plate is slidably installed on one side of the ejector plate, one end of the straight ejector rod passes through the rear mold and the ejector plate and is fixed on the ejector base plate; a plurality of ejector pins are installed on the ejector plate, one end of the ejector pin passes through the rear mold and the cavity and abuts against the product.

[0017] In some embodiments, a linkage mechanism is installed between the ejector plate and the ejector base plate. The linkage mechanism includes a latching rod with one end fixed to the ejector base plate and a locking block slidably installed within the ejector plate. The other end of the latching rod is provided with a slot that engages with the locking block. A drive rod is fixed on the rear mold for driving the locking block out of the slot. The drive rod is provided with a fourth inclined baffle, and one end of the locking block is provided with a fifth inclined baffle adapted to the fourth inclined baffle. This solution achieves secondary demolding through the linkage mechanism, ensuring demolding quality.

[0018] In some embodiments, square irons are symmetrically installed on both sides of the rear mold, the rear mold is connected to the rear seat plate through the square irons, and the ejector plate and the ejector base plate are installed between the two square irons.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, the beneficial effects that at least one technical solution adopted in the embodiments of this specification can achieve include at least:

[0021] 1) The product is completed by two injection molding processes using a single mold. During injection molding, the first core and the cavity are molded together to form a semi-finished product in one step, and the semi-finished product does not need to be ejected. After rotation, the core with the semi-finished product is molded together with the second core to form a finished product in a second step. Then the finished product can be demolded and ejected. It only requires a single demolding process, without the need for material handling, resulting in high injection molding efficiency, high demolding quality, good injection molding quality, and low manufacturing cost.

[0022] 2) The first sliding block, the second sliding block, and the forming protrusion work together to facilitate the two-stage forming of the side plate of the product, resulting in high forming quality and easy demolding.

[0023] 3) The undercut part of the product is formed by oblique core pulling, and with the secondary demolding structure, the forming and demolding of the undercut part are convenient; the overall demolding quality is high and the demolding is simple and convenient. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a perspective view of a two-color injection mold for an automotive central control instrument panel according to the present invention;

[0026] Figure 2 This is an exploded view of a two-color injection mold for an automotive central control dashboard according to the present invention;

[0027] Figure 3 This is a perspective view of the connection between the front seat plate, the front mold, the first core, and the second core in a two-color injection mold for an automotive central control instrument panel according to the present invention.

[0028] Figure 4 This is a schematic diagram of the structure of the second core and cavity after being molded together in a two-color injection mold for an automotive central control instrument panel according to the present invention;

[0029] Figure 5 This is a perspective view of the cavity in a two-color injection mold for an automotive central control dashboard according to the present invention;

[0030] Figure 6 This is an exploded view of the first sliding block and elastic clamp in a two-color injection mold for an automotive central control instrument panel according to the present invention.

[0031] Figure 7 This is a perspective view of the connection between the first sliding block and the elastic clamp in a two-color injection mold for an automotive central control instrument panel according to the present invention;

[0032] Figure 8 This is an exploded view of the hydraulic cylinder, drive block, and hydraulic cylinder seat in a two-color injection mold for an automotive central control instrument panel according to the present invention.

[0033] Figure 9 It is a 3D view of an existing car's center console dashboard;

[0034] Figure 10 It is a 3D view of the existing car dashboard from another perspective;

[0035] Figure 11 This is a perspective view of a semi-finished product formed by injection molding after the first core and cavity of a two-color injection mold for an automotive central control instrument panel are closed according to the present invention.

[0036] Figure 12 This is a schematic diagram of the structure of the cavity, rear mold, ejector panel, ejector base plate and linkage mechanism of a two-color injection mold for an automotive central control instrument panel according to the present invention;

[0037] Figure 13 This is a perspective view of the oblique core-pulling device, straight ejector rod, and ejector pin in a two-color injection mold for an automotive central control instrument panel according to the present invention.

[0038] Figure 14 This is a perspective view of a slanted core-pulling mechanism in a two-color injection mold for an automotive central control instrument panel according to the present invention;

[0039] Figure 15 This is a perspective view of the connection between the oblique core pulling, guide seat and ejector plate in a two-color injection mold for an automotive central control instrument panel according to the present invention;

[0040] Figure 16 This is a perspective view of the linkage mechanism in a two-color injection mold for an automotive central control instrument panel according to the present invention;

[0041] The component names corresponding to the various reference numerals in the figure are as follows: 1. Rear seat plate; 2. Cavity; 3. Front seat plate; 4. First core; 401. Forming protrusion; 5. Second core; 6. First sliding block; 601. Receiving groove; 602. Third inclined baffle; 61. Elastic stop block; 611. First inclined baffle; 62. Clamping post; 7. First inclined push block; 8. Second inclined push block; 801. Second inclined baffle; 9. Second sliding block; 901. Inclined guide groove; 10. Inclined guide post; 11. Elastic chuck; 12. Hydraulic cylinder; 13. Drive block; 131. T 14. Front mold; 15. Cylinder seat; 16. Angled core puller; 161. Guide post; 17. Rear mold; 18. Guide block; 19. Ejector plate; 20. Guide seat; 2001. Guide groove; 21. Straight ejector rod; 22. Ejector base plate; 23. Ejector pin; 24. Fastening rod; 241. Slot; 25. Locking block; 251. Fifth slanted baffle; 26. Drive rod; 261. Fourth slanted baffle; 27. Square iron; a. Side plate; b. Undercut. Detailed Implementation

[0042] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0043] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0045] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0046] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0047] Combination Figures 1-16 As shown, this invention provides a two-color injection mold for an automotive center console dashboard, including a rear seat panel 1, two cavities 2 centrally symmetrically mounted on the rear seat panel 1, a front seat panel 3 opposite to the rear seat panel 1 and spaced apart, and a first core 4 and a second core 5 corresponding to the two cavities 2 and spaced apart on the front seat panel 3, wherein the first core 4, after being molded with the cavities 2, is used to form a semi-finished product (such as...) in one step. Figure 11 The second core 5, after being molded with the cavity 2 containing the semi-finished product, is used for secondary molding to produce the finished product (such as...). Figure 9 and Figure 10 Both the rear seat plate 1 and the front seat plate 3 are connected to an external injection molding machine. Driven by the injection molding machine, the rear seat plate 1 can slide (for mold opening) and rotate relative to the front seat plate 3, so that the first core 4 and the second core 5 can be molded with different cavities 2.

[0048] See Figures 9 to 11 This product is a car center console instrument panel. The side of the car center console instrument panel has a side plate a, which has multiple holes. The molding of the side plate a is the focus of this two-color injection mold.

[0049] See Figures 1 to 5The two cavities 2 have the same structure. Each cavity 2 is slidably mounted with a first sliding block 6. The first core 4 is provided with a forming protrusion 401 and a first inclined push block 7 corresponding to the first sliding block 6. The forming protrusion 401 is integrally set with the first core 4. The first inclined push block 7 is fixed on the first core 4. The first inclined push block 7 is used to push the first sliding block 6 toward the forming protrusion 401 during mold closing to form the side plate a of the product in one step. The second core 5 is equipped with a second inclined push block 8 corresponding to the first sliding block 6, a slidable second sliding block 9, and an inclined guide post 10. The second inclined push block 8 and the inclined guide post 10 are respectively fixed on the second core 5. The second sliding block 9 can slide relative to the second core 5. The cavity 2 is provided with a receiving groove on the side of the first sliding block 6 for accommodating the forming protrusion 401 or the second sliding block 9. The second inclined push block 8 is used to restrict the first sliding block 6 from disengaging from the semi-finished product during mold closing, and to prevent the first sliding block 6 from shifting when the second sliding block 9 moves towards the first sliding block 6, thus ensuring injection molding quality. The second sliding block 9 can move towards the first sliding block 6 to perform secondary molding of the side plate a. The inclined guide post 10 is used to drive the first sliding block 6 to slide during mold opening, causing it to disengage from the product's glue position.

[0050] During injection molding, driven by the injection molding machine, the rear seat plate 1 moves closer to the front seat plate 3, and the first core 4 and the second core 5 respectively close with the corresponding cavity 2. During the mold closing process of the first core 4 and the cavity 2 (without the semi-finished product), the first inclined push block 7 drives the first sliding block 6 to move closer to the forming protrusion 401 for primary molding, thus forming a semi-finished product after primary molding. During the mold closing process of the second core 5 and the cavity 2 (with the semi-finished product), the second sliding block 9 moves closer to the first sliding block 6 for secondary molding. The second inclined push block 8 limits the first sliding block 6 to prevent it from detaching from the semi-finished product, and the finished product is formed after secondary molding. When the mold is opened, the first core 4 separates from the corresponding cavity 2, and the semi-finished product remains on the cavity 2; the second sliding block 9 slides away from the product's glue position, the second core 5 separates from the corresponding cavity 2, and at the same time, the inclined guide post 10 drives the first sliding block 6 to separate it from the product's glue position, and the finished product remains on the cavity 2; then, the ejection structure at the cavity 2 containing the finished product moves to eject the finished product; after ejection, the rear seat plate 1 rotates relative to the front seat plate 3, so that the cavity 2 containing the semi-finished product corresponds to the second core 5, and at the same time, the empty cavity 2 corresponds to the first core 4.

[0051] See Figures 3 to 6The first sliding block 6 is provided with a receiving groove 601 for accommodating the inclined guide post 10, and one end of the receiving groove 601 has an opening. Retractable elastic blocks 61 are symmetrically installed on both sides of the inner wall of the receiving groove 601. A spring is installed between the elastic block 61 and the first sliding block 6, and the spring always gives the elastic block 61 a tendency to extend. A first inclined baffle 611 is provided at the end of the elastic block 61. Since the direction of mold opening movement is perpendicular to the direction of extension and retraction of the elastic block 61, the first inclined baffle 611 ensures that the inclined guide post 10 can drive the elastic block 61 to retract. When the second core 5 and the cavity 2 containing the semi-finished product are closed, the inclined guide post 10 drives the elastic block 61 to retract through the first inclined baffle 611, allowing the inclined guide post 10 to smoothly pass over the elastic block 61 and enter the inner side of the receiving groove 601. After passing over, the elastic block 61 returns to its original extension position. When the mold is opened, the inclined guide post 10 pushes the first sliding block 6 through the elastic stop 61 to disengage the first sliding block 6 from the product glue position, ensuring the reliability of the structure.

[0052] See Figure 3 , Figure 5 and Figure 6 The first inclined push block 7 and the second inclined push block 8 have the same structure. The first inclined push block 7 and the second inclined push block 8 are respectively provided with a second inclined baffle 801. The end of the first sliding block 6 is provided with a third inclined baffle 602 that is adapted to the second inclined baffle 801. Since the direction of mold opening movement is perpendicular to the direction of sliding of the first sliding block 6, the feasibility of driving is ensured by the cooperation of the second inclined baffle 801 and the third inclined baffle 602.

[0053] See Figure 4 , Figure 6 and Figure 7 The cavity 2 has at least one elastic clamp 11 installed at the bottom of the first sliding block 6. A mounting plate is also installed at the bottom of the cavity 2. Two elastic clamps 11 are symmetrically and spaced apart within the mounting plate. A clamping post 62, which engages with the elastic clamp 11, is installed at the bottom of the first sliding block 6. When the first core 4 and the cavity 2 are closed, the first inclined push block 7 pushes the first sliding block 6 to slide, causing the first sliding block 6 to move the clamping post 62, disengaging it from the elastic clamp 11. During mold opening, at the second core 5, the inclined guide post 10 pushes the first sliding block 6 to slide, causing the first sliding block 6 to move the clamping post 62 towards the elastic clamp 11, engaging it with the elastic clamp 11. At this time, the first sliding block 6 is locked. By cooperating with the clamping post 62 and the elastic chuck 11, the first sliding block 6 can be locked at the second core 5 during mold opening. This prevents the movement of the first sliding block 6 from interfering with the ejection of the finished product, ensuring demolding quality. Furthermore, it prevents the first sliding block 6 from sliding when the rear seat plate 1 rotates relative to the front seat plate 3. The elastic chuck 11 is existing technology and will not be described in detail in this embodiment.

[0054] See Figures 1 to 4 as well as Figure 8 The second sliding block 9 is connected to the hydraulic cylinder 12 for driving. The hydraulic cylinder 12 drives the second sliding block 9 to slide, that is, when the mold is closed, it drives the second sliding block 9 to move towards the first sliding block 6, and when the mold is opened, it drives the second sliding block 9 to disengage from the product. In this structure, the second sliding block is driven by a hydraulic cylinder, which facilitates mold closing and demolding and simplifies the structure. The extension rod of the hydraulic cylinder 12 is connected to a drive block 13. The drive block 13 is provided with a T-shaped block 131. The end of the second sliding block 9 near the drive block 13 is provided with an inclined guide groove 901 that matches the T-shaped block 131. The T-shaped block 131 is placed in the inclined guide groove 901. When driven, the hydraulic cylinder 12 is activated, which drives the drive block 13 to move. The drive block 13 drives the second sliding block 9 to slide through the cooperation of the T-shaped block 131 and the inclined guide groove 901.

[0055] See Figures 1 to 4 as well as Figure 8 Two front molds 14 are installed at intervals on the front seat plate 3, and the front molds 14 are fixed to the front seat plate 3 by pads. The first core 4 and the second core 5 are respectively fixed on the corresponding front molds 14; a hydraulic cylinder 12 is installed on one side of the front mold 14 fixed to the second core 5 through a hydraulic cylinder seat 15, and the drive block 13 is slidably installed in the hydraulic cylinder seat 15. A U-shaped plate for supporting the second sliding slider 9 is installed on the front mold 14, and the second sliding slider 9 is slidably installed in the U-shaped plate.

[0056] See Figure 10 , Figure 11 , Figures 13 to 15 This product has multiple undercut parts b. To facilitate the molding of the undercut parts b, multiple inclined core pulls 16 are installed in the cavity 2. The multiple inclined core pulls 16 are arranged one-to-one with the multiple undercut parts b, and the undercut parts b of the product are formed by the inclined core pulls 16. Two rear molds 17 are symmetrically and spaced apart on the rear seat plate 1. The two cavities 2 are respectively fixed on the corresponding rear molds 17. A guide block 18 for guiding the inclined core pulls 16 is installed between the rear mold 17 and the cavity 2. The inclined core pulls 16 pass through the guide block 18. An ejector plate 19 is slidably installed on one side of the rear mold 17. A guide seat 20 is installed on the ejector plate 19. A guide groove 2001 is provided on the guide seat 20. One end of the inclined core pull 16 passes through the rear mold 17 and is slidably connected to the guide seat 20. A guide post 161 adapted to the guide groove 2001 is installed at the end of the inclined core pull 16. The guide post 161 is placed in the guide groove 2001. This structure, through the cooperation of guide block 18 and guide groove 2001, allows the inclined core puller 16 to move obliquely when the ejector plate 19 moves toward the rear mold 17, thereby gradually disengaging the inclined core puller 16 from the undercut part b of the product, facilitating demolding.

[0057] See Figure 12 and Figure 13 Multiple straight ejector pins 21 are installed inside the cavity 2, and the straight ejector pins 21 are used to assist in molding the product. An ejector base plate 22 is slidably installed on one side of the ejector plate 19. One end of the straight ejector pin 21 passes through the rear mold 17 and the ejector plate 19 and is fixed on the ejector base plate 22. Multiple ejector pins 23 are installed on the ejector plate 19. The ejector pins 23 are used to eject the finished product. One end of the ejector pin 23 passes through the rear mold 17 and the cavity 2 and rests against the product.

[0058] See Figure 1 and Figure 2 Two square irons 27 are symmetrically installed on both sides of the rear mold 17 and spaced apart. The rear mold 17 is connected to the rear seat plate 1 through the square irons 27. The ejector plate 19 and the ejector base plate 22 are installed between the two square irons 27.

[0059] See Figure 12 and Figure 16 A linkage mechanism is installed between the ejector plate 19 and the ejector base plate 22 to enable them to move together. The linkage mechanism includes a latching rod 24 fixed at one end to the ejector base plate 22 and a locking block 25 slidably installed within the ejector plate 19. The other end of the latching rod 24 has a slot 241 that engages with the locking block 25. A spring is installed between the locking block 25 and the ejector plate 19, and the spring always tends to cause the locking block 25 to move towards the slot 241. When the locking block 25 is placed in the slot 241, the ejector plate 19 and the ejector base plate 22 are locked and can move together; when the locking block 25 disengages from the slot 241, the ejector plate 19 and the ejector base plate 22 disengage and cannot move together. A drive rod 26 is fixed on the rear mold 17 for driving the locking block 25 to disengage from the slot 241. The drive rod 26 is provided with a fourth inclined baffle 261, and one end of the locking block 25 is provided with a fifth inclined baffle 251 that is adapted to the fourth inclined baffle 261. When the ejector plate 19 and the ejector base plate 22 move together toward the rear mold 17 a certain distance, the drive rod 26 drives the locking block 25 to disengage from the slot 241, at which time the ejector plate 19 and the ejector base plate 22 disengage.

[0060] During mold opening, the hydraulic cylinder 12 drives the second sliding block 9 to disengage from the product's glue position, the second core 5 separates from the corresponding cavity 2, and the inclined guide post 10 drives the first sliding block 6 to disengage from the product's glue position, leaving the finished product on the cavity 2. This mold adopts a two-stage demolding method. During demolding, under the action of the linkage mechanism, the ejector component on the injection molding machine causes the ejector plate 19 and the ejector base plate 22 to move together toward the rear mold 17. The straight ejector rod 21 and the ejector pin 23 eject together to disengage the finished product from the cavity 2. At the same time, the inclined core puller 16 moves along the inclined direction to disengage from the product's undercut part, completing the first demolding. Then, the drive rod 26 drives the locking block 25 to disengage from the slot 241, the ejector plate 19 continues to move, and the ejector base plate 22 remains stationary. At this time, the ejector pin 23 continues to eject the finished product to disengage from the straight ejector rod 21, while the inclined core puller 16 continues to move along the inclined direction to completely disengage from the product's undercut part, completing the second demolding.

[0061] This two-color injection mold uses one mold to complete two injection processes for the product. During injection, the first core and cavity are molded together in one step to form a semi-finished product, which does not need to be ejected. After rotation, the core with the semi-finished product is molded together with the second core to form the finished product. Then the finished product is demolded and ejected. It only requires a single demolding process, without the need for material handling, resulting in high injection efficiency, high demolding quality, good injection quality, and low manufacturing cost.

[0062] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the descriptions of the embodiments described later are relatively simple, and relevant parts can be referred to the descriptions of the foregoing embodiments.

[0063] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A two-color injection mold for an automotive center console dashboard, characterized in that: The system includes a rear seat plate (1), two cavities (2) symmetrically and spaced apart on the rear seat plate (1), a front seat plate (3) opposite to the rear seat plate (1), and a first core (4) and a second core (5) corresponding to the two cavities (2) and spaced apart on the front seat plate (3). The rear seat plate (1) can slide and rotate relative to the front seat plate (3), so that the first core (4) and the second core (5) can be molded with different cavities (2). A first sliding block (6) is slidably mounted on the cavity (2). A forming protrusion (401) and a first inclined push block (7) corresponding to the first sliding block (6) are provided on the first core (4). The first inclined push block (7) is used to push the first sliding block (6) toward the forming protrusion (401) to form the side plate part (a) of the product in one step when the mold is closed. A second inclined push block (8), a slidable second sliding block (9), and an inclined guide post (10) corresponding to the first sliding block (6) are mounted on the second core (5). The second inclined push block (8) is used to restrict the first sliding block (6) from leaving the product when the mold is closed. The second sliding block (9) can move toward the first sliding block (6) to form the side plate part (a) in a second step. The inclined guide post (10) is used to drive the first sliding block (6) to leave the product glue position when the mold is opened.

2. The dual-color injection mold for automotive central control instrument panel according to claim 1, characterized in that: The first sliding block (6) is provided with a receiving groove (601) for accommodating the inclined guide post (10). The inner walls of the receiving groove (601) are equipped with retractable elastic blocks (61) on both sides. The end of the elastic block (61) is provided with a first inclined baffle (611). When the mold is closed, the inclined guide post (10) drives the elastic block (61) to retract through the first inclined baffle (611), so that the inclined guide post (10) passes through the elastic block (61) and enters the inner side of the receiving groove (601). When the mold is opened, the inclined guide post (10) pushes the first sliding block (6) through the elastic block (61) to disengage it from the product glue position.

3. The dual-color injection mold for automotive central control instrument panel according to claim 1, characterized in that: The first inclined push block (7) and the second inclined push block (8) are respectively provided with a second inclined baffle (801), and the end of the first sliding block (6) is provided with a third inclined baffle (602) that is adapted to the second inclined baffle (801).

4. The dual-color injection mold for automotive central control instrument panel according to claim 1, characterized in that: The cavity (2) has at least one elastic clamp (11) installed at the bottom of the first sliding block (6), and the bottom of the first sliding block (6) has a clamping post (62) that can engage with the elastic clamp (11); when the mold is closed, the first inclined push block (7) pushes the first sliding block (6) to slide, and the clamping post (62) disengages from the elastic clamp (11); when the mold is opened, the inclined guide post (10) pushes the first sliding block (6) to slide, so that the clamping post (62) engages with the elastic clamp (11).

5. The dual-color injection mold for automotive central control instrument panel according to claim 1, characterized in that: The second sliding block (9) is driven and connected to the oil cylinder (12), which is used to drive the second sliding block (9) to slide; the oil cylinder (12) is driven and connected to the drive block (13), and the drive block (13) is provided with a T-shaped block (131). The second sliding block (9) is provided with an inclined guide groove (901) that is adapted to the T-shaped block (131) at one end near the drive block (13).

6. The dual-color injection mold for automotive central control instrument panel according to claim 5, characterized in that: Two front molds (14) are installed at intervals on the front seat plate (3). The first core (4) and the second core (5) are fixed on the corresponding front molds (14). The oil cylinder (12) is installed on one side of the front mold (14) through the oil cylinder seat (15). The drive block (13) is slidably installed in the oil cylinder seat (15).

7. The dual-color injection mold for automotive central control instrument panel according to claim 1, characterized in that: Multiple inclined core pullers (16) are installed in the cavity (2), and the inclined core pullers (16) are used to form the undercut part (b) of the product; two rear molds (17) are symmetrically installed on the rear seat plate (1), the cavity (2) is fixed on the corresponding rear mold (17), and a guide block (18) for guiding the inclined core pullers (16) is installed between the rear mold (17) and the cavity (2); an ejector plate (19) is slidably installed on one side of the rear mold (17), a guide seat (20) is installed on the ejector plate (19), and a guide groove (2001) is provided on the guide seat (20); one end of the inclined core puller (16) passes through the rear mold (17) and is slidably connected to the guide seat (20), and a guide post (161) adapted to the guide groove (2001) is installed at the end of the inclined core puller (16).

8. The dual-color injection mold for automotive central control instrument panel according to claim 7, characterized in that: Multiple straight ejector rods (21) are installed inside the cavity (2), and the straight ejector rods (21) are used to assist in molding the product; an ejector base plate (22) is slidably installed on one side of the ejector panel (19), and one end of the straight ejector rod (21) passes through the rear mold (17) and the ejector panel (19) and is fixed on the ejector base plate (22); multiple ejector pins (23) are installed on the ejector panel (19), and one end of the ejector pin (23) passes through the rear mold (17) and the cavity (2) and abuts against the product.

9. The dual-color injection mold for automotive central control instrument panel according to claim 8, characterized in that: A linkage mechanism is installed between the ejector plate (19) and the ejector base plate (22). The linkage mechanism includes a latching rod (24) with one end fixed to the ejector base plate (22) and a locking block (25) slidably installed in the ejector plate (19). The other end of the latching rod (24) is provided with a slot (241) that can engage with the locking block (25). A drive rod (26) for driving the locking block (25) to disengage from the slot (241) is fixed on the rear mold (17). A fourth inclined baffle (261) is provided on the drive rod (26). A fifth inclined baffle (251) that is adapted to the fourth inclined baffle (261) is provided at one end of the locking block (25).

10. The dual-color injection mold for automotive central control instrument panel according to claim 8, characterized in that: Square irons (27) are symmetrically installed on both sides of the rear mold (17). The rear mold (17) is connected to the rear seat plate (1) through the square irons (27). The ejector plate (19) and the ejector base plate (22) are installed between the two square irons (27).

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