Toy assembly demolding method, mold, toy assembly and toy

Abstract

The invention relates to the technical field of toys, and provides a toy assembly demolding method suitable for multi-color forming, a mold, a toy assembly and a toy. According to the toy assembly demolding method suitable for multi-color forming, the end of a first runner and the far end of a second runner are configured to be connected with a second mold cavity and a third mold cavity used for forming a second building block and a third building block correspondingly, and the second mold cavity and the third mold cavity are configured to be arranged in the vertical direction; and the near end of the second runner is allowed to move in the vertical direction by the first runner, so that the second runner is separated from the third building block in advance during demolding, and then the whole product is driven to be separated from the mold from the first runner. By means of the automatic water gap breaking device, switching from manual water gap breaking to full-automatic mass production is achieved, the labor cost is saved, the product quality is improved, the defects of water gap protruding, product scratching and the like caused by manual operation are overcome, the production efficiency is improved, and full automation of the production process is achieved.

Description

Technical Field

[0001] This invention relates to the field of toy technology, and more specifically, to a demolding method for multi-color molded toy components, a mold, toy components, and a toy. Background Technology

[0002] When molding multi-color joints, a multi-runner system is required. Taking a two-color joint as an example, a two-runner system is needed. Traditional two-runner systems are difficult to position and use jigs (fixtures) for stable positioning and automated processing during ultrasonic cleaning or separation. This means that manual separation is necessary, which is not only inefficient, but also prone to quality problems such as sprue protrusion and product scratches due to improper operation. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a demolding method, mold, toy component, and toy suitable for multi-color molding.

[0004] According to the present invention, a demolding method for toy components suitable for multi-color molding is provided, wherein the end of the first flow channel and the far end of the second flow channel are respectively configured to connect the second cavity and the third cavity for molding the second block and the third block, and the second cavity and the third cavity are configured to be arranged in the vertical direction with a first cavity for molding the first block between them.

[0005] The external structure of the first flow channel forms a clearance space, and the clearance space allows the proximal end of the second flow channel to be displaced in the vertical direction, so that during demolding, the second flow channel is first disengaged from the third block, and then the entire product is driven to disengage from the first flow channel from the mold.

[0006] A mold according to the present invention includes a first flow channel and a second flow channel; The end of the first flow channel is connected to a second cavity for forming a second building block, and the far end of the second flow channel is connected to a third cavity for forming a third building block. The second cavity and the third cavity are arranged in the vertical direction and a first cavity for forming a first building block is disposed between them. The external structure of the first flow channel forms a clearance space, which allows the second flow channel to detach independently from the third block, and then the entire product and the first flow channel to detach together from the mold.

[0007] Preferably, the first building block is of the first color, and the second and third building blocks are both of the second color, or are of the second and third colors respectively.

[0008] Preferably, the part of the second building block that connects to the first flow channel is an external surface, and the part of the third building block that connects to the second flow channel is a non-external surface.

[0009] Preferably, the clearance space allows the proximal end of the second flow channel to be displaced in the vertical direction, causing the second flow channel to detach from the third block.

[0010] Preferably, during mold opening, when force is applied to the second flow channel, the clearance space allows the proximal end of the second flow channel to be displaced, thereby causing the second flow channel to detach from the third block and enabling the first flow channel and the product to be transported together to the separation device by mechanical means, resulting in the automatic separation of the product from the first flow channel.

[0011] Preferably, when viewed from above, the first flow channel has a C-shaped or U-shaped structure, such that the clearance space is formed in the middle of the first flow channel.

[0012] Preferably, the first flow channel is circumferentially arranged with a plane.

[0013] Preferably, the cross-section of the planar portion of the first flow channel is arc-shaped.

[0014] Preferably, one or more first protrusions are disposed on one side of the first flow channel.

[0015] Preferably, the second flow channel includes a second transverse flow channel and a vertical flow channel communicating with the second transverse flow channel, the vertical flow channel penetrating the clearance space.

[0016] Preferably, the first flow channel includes a first transverse flow channel and branch flow channels connected to both ends of the first transverse flow channel, and the second transverse flow channel is parallel to the first transverse flow channel.

[0017] Preferably, the branch channel is perpendicular to the first transverse channel.

[0018] Preferably, the connection between the branch channel and the first transverse channel is an arc-shaped transition structure.

[0019] Preferably, a second boss is disposed on the second transverse flow channel.

[0020] Preferably, the first flow channel and the second flow channel are connected to the second cavity and the third cavity respectively through a fine nozzle.

[0021] Preferably, the second flow channel is removed by an array of ejector pins configured on the mold.

[0022] Preferably, the first flow channel and the product are ejected from the mold cavity by the push plate and then transported away by the robot arm.

[0023] Preferably, the separation device is an ultrasonic machine.

[0024] According to the present invention, a toy assembly includes a first building block, a second building block, and a third building block, wherein the first building block is movable and cooperates with the second building block and the third building block respectively.

[0025] Preferably, the activity is rotation.

[0026] Preferably, the first building block is not detachable from the second and third building blocks.

[0027] Preferably, the first building block forms a joint with the second and third building blocks.

[0028] Preferably, the first building block is made of POM material, and the second and third building blocks are both made of ABS material.

[0029] A toy according to the present invention includes the aforementioned toy components.

[0030] Compared with the prior art, the present invention has the following beneficial effects: This invention simplifies the flow channel that ultimately requires external processing into a single first flow channel through segmented shedding technology and a secondary ejection mechanism. This structurally regular flow channel is easily grasped by a robotic arm and positioned using a fixture in an ultrasonic machine, thereby realizing the transformation from manual sprue cutting to fully automated mass production. It eliminates the manual separation process, saves labor costs, improves product quality, avoids defects such as sprue protrusion and product scratches caused by manual operation, improves production efficiency, and achieves complete automation of the production process, making it suitable for large-scale mass production. Attached Figure Description

[0031] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a side view of the flow channel and product in this invention; Figure 2 This is a schematic cross-sectional view of the mold structure; Figure 3 This is a top-down view of the structure of the first flow channel, where the fourth flow channel is not shown.

[0032] The diagram shows: Third flow channel 1; Fourth flow channel 2; First flow channel 3; 31 cubic meters of clearance space; First transverse flow channel 32; Branch channel 33; Push plate 4; Pin array 5; Auxiliary needle 6; Second flow channel 7; Vertical flow channel 71; Second transverse flow channel 72; First building block: 100; Second building block 200; The third building block is 300. Detailed Implementation

[0033] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0034] Example 1: To address the inefficiencies and quality issues associated with multi-color joint molding, such as sprue protrusion and product scratches, this invention provides a demolding method for toy components suitable for multi-color molding, such as... Figure 1 , Figure 2 As shown, the end of the first flow channel 3 and the far end of the second flow channel 7 are respectively configured to connect the second cavity and the third cavity for molding the second block 200 and the third block 300. The second cavity and the third cavity are arranged in the vertical direction, and a first cavity for molding the first block 100 is arranged between the second cavity and the third cavity. Specifically, the first flow channel 3 is configured to have a clearance space 31, that is, the external structure of the first flow channel 3 forms a clearance space 31. The clearance space 31 allows the second flow channel 7 to detach from the third block 300 independently. Specifically, the clearance space 31 allows the proximal end of the second flow channel 7 to be displaced in the vertical direction. The displacement of the clearance space 31 causes the second flow channel 7 to detach from the third block 300 first during demolding, and then drives the entire product to detach from the mold along with the first flow channel 3.

[0035] Specifically, the second and third cavities are partially or entirely located above and below the first cavity, respectively. The lower end of the second cavity covers a portion of the upper end of the first cavity, and the upper end of the third cavity covers a portion of the lower end of the first cavity. In other words, the second, first, and third cavities are arranged vertically in the mold, forming a connected space. During mold opening, when force is applied to the second runner 7 in the demolding direction, interference occurs at the connection between the second runner 7 and the third block 300. However, because the connection uses a narrow gate structure, the connecting force is less than the lateral force. Therefore, the connection between the second runner 7 and the third block 300 breaks, causing the second runner 7 to detach from the third block 300 and displace. After the second runner 7 and the third block 300 separate, the first runner 3 and the product can be mechanically transported to the separation equipment, allowing the product to automatically separate from the first runner 3.

[0036] Furthermore, since the runners of the second building block 200 and the third building block 300 are designed separately and do not interfere with each other, during mold opening, the first runner 3 and the product can be ejected from the mold cavity first by the push plate 4, and then the second runner 7 can be removed by the ejector pin array 5. At this time, the first runner 3 and the product can be transported to the separation device by a robot arm, realizing the automatic separation of the product and the first runner 3. This solves the problems of low efficiency, easy sprue protrusion, and product scratches caused by the need for manual separation of the product and runner in the prior art. Among them, the first building block 100 is the first color, and the second building block 200 and the third building block 300 are both the second color, or the second building block 200 and the third building block 300 are the second color and the third color, respectively.

[0037] Specifically, when viewed from above, the first flow channel 3 can be a C-shaped structure or a U-shaped structure, etc., so that the external structure of the first flow channel 3 forms a clearance space 31, such as... Figure 3 As shown, the second flow channel 7 includes a second transverse flow channel 72 and a vertical flow channel 71 that connects to the second transverse flow channel 72. The vertical flow channel 71 passes through the clearance space 31. Therefore, when the second flow channel 7 is removed, the upward movement of the second flow channel 7 is manifested as the vertical flow channel 71 undergoing a slight upward displacement in the clearance space 31.

[0038] It should be noted that the product here refers to the first building block 100, the second building block 200, and the third building block 300, which are injection molded together to form a two-color joint or a three-color joint.

[0039] The present invention also provides a mold, including a first flow channel 3, a push plate 4, an ejector pin array 5 and a second flow channel 7. The end of the first flow channel 3 is connected to a second cavity for forming a second building block 200, and the far end of the second flow channel 7 is connected to a third cavity for forming a third building block 300. The second cavity and the third cavity are arranged in a vertical direction, and a first cavity for forming a first building block 100 is disposed between the second cavity and the third cavity. The external structure of the first flow channel 3 forms a clearance space 31, and the proximal end of the second flow channel 7 penetrates the clearance space 31.

[0040] Specifically, the push plate 4 is positioned at the bottom of the third block 300, and the ejector pin array 5 is positioned at the bottom of the second runner 7. During mold opening, the product is first ejected from the mold cavity along with the first runner 3 by the push plate 4, and then the second runner 7 is removed by the ejector pin array 5. The product and the first runner 3 are then transported to the separation device by a robotic arm, where the product and the first runner 3 are automatically separated.

[0041] This invention designs the molding cavity for multi-color molding in a vertical spatial arrangement, and connects the two-color molding cavity or the second and third color molding cavities to different runners. When the mold is opened, the product is first ejected from the runner connected to the uppermost cavity, and then the runner connected to the lowermost cavity is removed by the drive component in the mold. Then, the product and the runner connected to the uppermost cavity are transported to the separation equipment by a robot for automatic separation. This eliminates the manual separation process, saves labor costs, improves product quality, avoids defects such as sprue protrusion and product scratches caused by manual operation, and improves production efficiency.

[0042] Specifically, the ejector pin array 5 includes multiple ejector pins, the bottom of which is connected to auxiliary pins 6, such as... Figure 2 As shown.

[0043] It should be noted that the first runner 3 and the second runner 7 are connected to the second cavity and the third cavity through a narrow gate. The design of the narrow gate injection method makes it easy for the runner to be cut off at the narrow gate point, thereby realizing the separation of runners from each other and from the product, simplifying the molding process and demolding process, and improving molding efficiency.

[0044] The separation device in this invention uses an ultrasonic machine. The ultrasonic waves of the ultrasonic machine separate the first flow channel 3 from the product, thus avoiding the risk of residual waste not being completely removed. This solves the problem of low efficiency caused by manual separation in the prior art, and effectively avoids quality problems such as sprue protrusion and product scratches caused by improper manual operation.

[0045] It should be noted that the part where the second building block 200 connects to the first flow channel 3 is the appearance surface. Therefore, the smoothness of the exterior of the second building block 200 needs to be improved. By ultrasonically separating the second building block 200 from the first flow channel 3, the aesthetic appearance of the second building block 200 can be guaranteed. The part where the third building block 300 connects to the second flow channel 7 is not the appearance surface. Therefore, the appearance requirements of the third building block 300 are slightly lower than those of the first building block 300.

[0046] like Figure 1 As shown, the first flow channel 3 has a plane 32 arranged circumferentially, making the cross-section of the portion of the first flow channel 3 with the plane 32 arc-shaped. By providing the plane 32 on the side of the first flow channel 3, the first flow channel 3 and the product can be fixed in the ultrasonic machine through the plane 32, facilitating ultrasonic vibration operation. At the same time, one or more first bosses 33 are provided on one side of the first flow channel 3, and second bosses 721 are provided on the second transverse flow channel 72. By providing the bosses, the flow channels can be positioned, playing a positioning and supporting role, preventing the flow channels from tilting or skewing during mold opening.

[0047] The present invention also provides a toy assembly, including a first building block 100, a second building block 200 and a third building block 300, wherein the first building block 100 is movably engaged with the second building block 200 and the third building block 300, and the movable engagement is preferably a rotational engagement.

[0048] The first cavity in the mold is used to form the first building block 100, the second cavity is used to form the second building block 200, and the third cavity is used to form the third building block 300. The first cavity is connected to the second cavity and the third cavity, and together they are used to accommodate the first building block 100, the second building block 200, and the third building block 300. The second building block 200 can be formed in the second cavity and the third building block 300 can be formed in the third cavity. The second building block 200 and the third building block 300 are both formed on the first building block 100.

[0049] Specifically, the second block 200 and the third block 300 are both injection molded on the first block 100, so that the first block 100 and the second block 200, and the first block 100 and the third block 300 are not detachable. The first block 100, the second block 200, and the third block 300 preferably form three block parts with a two-color joint.

[0050] The first building block 100 in this invention is preferably made of POM material, and the second building block 200 and the third building block 300 are preferably made of ABS material.

[0051] The present invention also provides a toy, including toy components that can be applied to rotating parts of the toy, such as enabling joint functions.

[0052] The mold structure for the multi-color joint component in this invention employs a segmented release technology. The mold contains multiple independent runner systems. Through precise mold opening sequence and ejection mechanism control, different runners and the product separate from the mold in stages, achieving automated production and protecting the precision component. The core innovation of the mold lies in its strategy of "runner grading" and "segmented release," which decomposes the complex multi-runner demolding problem into several simple, automated steps. This ultimately overcomes the bottleneck of automated production of multi-color joint components, resulting in a simple structure and convenient operation.

[0053] Example 2: This embodiment is a preferred example of embodiment 1. In this embodiment, when viewed from above, the first flow channel 3 has a U-shaped structure. The first flow channel 3 includes a first transverse flow channel 32 and branch channels 33 connected to both ends of the first transverse flow channel 32. The second transverse flow channel 72 is parallel to the first transverse flow channel 32, and the branch channel 33 is perpendicular to the first transverse flow channel 32. The connection between the branch channel 33 and the first transverse flow channel 32 is an arc-shaped transition structure, which can reduce flow resistance.

[0054] Taking two-color molding as an example, the working principle of this invention is as follows: like Figure 1 , Figure 2 As shown, firstly, the third runner 1 is connected to the first cavity for injection molding the first building block 100. The third runner 1 injects glue through the fine gate. After the first building block 100 is injection molded, the mold is opened. After the mold is opened, the action of the fine gate plate automatically cuts off and separates the third runner 1 from the first color first building block 100, so that the POM material first building block 100 is retained in the mold cavity, preparing for the injection molding of the second color second building block 200 and the third building block 300; the third runner 1 is removed as waste material.

[0055] Next, the second block 200 and the third block 300 are injection molded on the already formed first block 100. A portion of the fourth runner 2 is connected to the second cavity for forming the second block 200 through the first runner 3, and another portion of the fourth runner 2 is connected to the third cavity for forming the third block 300 through the second runner 7. After the second block 200 and the third block 300 are injection molded, the mold is opened. After the mold is opened, the fourth runner 2 is driven to separate from the mold by the action of the fine runner plate. The first block 100, the second block 200, the third block 300, the first runner 3, and the second runner 7 are still retained in the cavity.

[0056] Next, the product, along with the first runner 3, is ejected from the mold cavity by the push plate 4.

[0057] Finally, the micro-ejector array 5 moves to first eject the second flow channel 7, separating the second flow channel 7 from the third block 300. Subsequently, the robot arm removes the product and the first flow channel 3 and places them into an ultrasonic machine. The ultrasonic vibration separates the first flow channel 3 from the product and removes any remaining small amounts of waste such as sprues.

[0058] It should be noted that the third runner 1 is injection molded with glue injected through a fine sprue. The fourth runner 2 is connected to the first runner 3, the fourth runner 2 is connected to the second runner 7, the first runner 3 is connected to the second cavity, and the second runner 7 is connected to the third cavity, which facilitates cutting and separation.

[0059] The removal of the third runner 1 and the fourth runner 2 are both achieved through the action of the fine runner plate. The design of the fine runner point injection method makes it easy for the runner to be cut off at the fine runner point, thereby realizing the separation of runners from each other and runners from the product, simplifying the molding process and demolding process, and improving molding efficiency.

[0060] The fine sprue plate is a key separation component in a three-plate mold with fine sprue. Located between the runner plate and the cavity plate, its core function is to forcibly break the fine sprue during mold opening, achieving automatic separation of the plastic part from the runner. Through precise motion control, the fine sprue plate completely separates the runner from the plastic part, eliminating the need for manual trimming.

[0061] This invention solves the problem that dual-channel systems cannot be positioned and processed using fixtures on ultrasonic machines and can only be separated manually. It realizes the transformation from the original manual water cutting method to automated mass production, saving labor costs and the problem of protruding sprue, reducing costs and improving molding efficiency.

[0062] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0063] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A demolding method for toy components suitable for multi-color molding, characterized in that, The end of the first flow channel (3) and the far end of the second flow channel (7) are respectively configured to connect the second cavity and the third cavity for forming the second block (200) and the third block (300), and the second cavity and the third cavity are arranged in the vertical direction with a first cavity for forming the first block (100) between them. The external structure of the first flow channel (3) forms a clearance space (31) and the clearance space (31) allows the second flow channel (7) to detach from the third block (300) separately, so that the entire product and the first flow channel (3) can detach from the mold together.

2. A mold, characterized in that, Including the first flow channel (3) and the second flow channel (7); The end of the first flow channel (3) is connected to a second cavity for forming a second block (200), and the far end of the second flow channel (7) is connected to a third cavity for forming a third block (300). The second cavity and the third cavity are arranged in the vertical direction and a first cavity for forming a first block (100) is arranged between them. The external structure of the first flow channel (3) forms a clearance space (31), which allows the second flow channel (7) to detach from the third block (300) separately, and then the entire product and the first flow channel (3) to detach from the mold together.

3. The demolding method for multi-color molded toy components according to claim 1 or the mold according to claim 2, characterized in that, The first block (100) is of the first color, and the second block (200) and the third block (300) are both of the second color, or are of the second color and the third color respectively. Preferably, the part of the second block (200) that connects to the first flow channel (3) is an appearance surface, and the part of the third block (300) that connects to the second flow channel (7) is a non-appearance surface. Preferably, the clearance space (31) allows the proximal end of the second flow channel (7) to be displaced in the vertical direction, causing the second flow channel (7) to detach from the third block (300). Preferably, during mold opening, when force is applied to the second flow channel (7), the clearance space (31) allows the proximal end of the second flow channel (7) to be displaced, thereby causing the second flow channel (7) to detach from the third block (300) and enabling the first flow channel (3) and the product to be transported together to the separation device by mechanical means, resulting in the automatic separation of the product from the first flow channel (3).

4. The demolding method for multi-color molded toy components according to claim 1 or the mold according to claim 2, characterized in that, Viewed from above, the first flow channel (3) has a C-shaped or U-shaped structure, forming the clearance space (31) in the middle of the first flow channel (3). Preferably, the first flow channel (3) has a plane (32) arranged circumferentially. Preferably, the cross-section of the portion of the first flow channel (3) with the plane (32) is arc-shaped. Preferably, one or more first protrusions (33) are arranged on one side of the first flow channel (3). Preferably, the second flow channel (7) includes a second transverse flow channel (72) and a vertical flow channel (71) connecting the second transverse flow channel (72), the vertical flow channel (71) penetrating the clearance space (31). Preferably, the first flow channel (3) includes a first transverse flow channel (32) and branch channels (33) connected to both ends of the first transverse flow channel (32), the second transverse flow channel (72) being parallel to the first transverse flow channel (32). Preferably, the branch channels (33) are perpendicular to the first transverse flow channel (32). Preferably, the connection between the branch channel (33) and the first transverse channel (32) is an arc-shaped transition. Preferably, the second transverse channel (72) is provided with a second boss (721). Preferably, the second channel (7) is removed by an ejector pin array (5) provided on the mold.

5. The demolding method for multi-color molded toy components according to claim 3, or the mold described therein, is characterized in that, The first flow channel (3) and the product are first ejected from the mold cavity by the push plate (4) and then transported away by the robot arm.

6. The demolding method for multi-color molded toy components according to claim 3 or the mold according to claim 2, characterized in that, The first flow channel (3) and the second flow channel (7) are respectively connected to the second cavity and the third cavity through a narrow nozzle. Preferably, the separation device is an ultrasonic machine.

7. A toy component, characterized in that, The method includes a first block (100), a second block (200), and a third block (300) in a mold for multi-color molding, as described in any one of claims 1, 3 to 6, or in any one of claims 2 to 6, wherein the first block (100) is movablely engaged with the second block (200) and the third block (300), respectively.

8. The toy assembly according to claim 7, characterized in that, The activity is rotation.

9. The toy assembly according to claim 7, characterized in that, Preferably, the first building block (100) is not detachable from the second building block (200) and the third building block (300). Preferably, the first building block (100) forms a joint with the second building block (200) and the third building block (300). Preferably, the first building block (100) is made of POM material, and the second building block (200) and the third building block (300) are both made of ABS material.

10. A toy, characterized in that, Includes the toy components according to any one of claims 7 to 9.

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