A product easy-to-separate two-color mold

Abstract

The utility model relates to the field of injection moulded product falling off in mould, and the utility model aims at providing a product easy separation type two -color mould, solves the problem that one -color product falls off difficultly on the upper die, the limiting rod is connected with the upper die plate screw, the limiting rod passes through the first thimble plate and the second thimble plate, the limiting rod has a tip, the spring is sleeved on the limiting rod, and the both ends of the spring abut against the tip and the first thimble plate respectively, since the spring is compressed by the tip, when the upper die plate is lifted upward, the spring will drive the first thimble plate and the second thimble plate to move down, then the thimble will also move down, when the upper die plate moves up, the upper die will also move up, so one -color product in the upper die and the lower die will be pushed down by the thimble, the upper die will be away from one -color product, so one -color product is easy to fall off from the upper die, thus the problem that one -color product falls off difficultly on the upper die is solved.

Description

Technical Field

[0001] This utility model relates to the field of injection molded products falling out of the mold, and in particular to a two-color mold for easy separation of products. Background Technology

[0002] Two-color injection molding involves completing the first injection molding process on a single injection molding machine, then rotating the semi-finished product to the second station to injection mold a product composed of two materials. Currently, this structure results in the single-color product remaining attached to the first-color mold after the first mold is opened, preventing the subsequent mold from rotating 180° to form the two colors. In other words, the single-color product is not easily detached from the first mold, making subsequent mold rotation difficult, thus making two-color injection molding relatively complicated. Utility Model Content

[0003] The purpose of this utility model is to provide a product-separable two-color mold, which solves the problem of single-color products being difficult to detach from the upper mold core.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides an easily separable two-color mold for products, including an upper template, an upper mold core, a lower template, a lower mold core, and a separation component. The upper mold core is disposed on the upper template, and the lower mold core is disposed on the lower template. The upper and lower mold cores are positioned opposite each other, with the upper mold core located above the lower mold core. The separation assembly includes a first ejector plate, a second ejector plate, a limiting rod, a spring, and ejector pins. The second ejector plate is movably disposed on the upper end of the upper template. The first ejector plate is connected to the upper end of the second ejector plate. The limiting rod is threadedly connected to the upper template and passes through the first ejector plate and the second ejector plate. The limiting rod has an end. The spring is sleeved on the limiting rod, and the two ends of the spring abut against the end and the first ejector plate, respectively. The ejector pin is connected to the first ejector plate and the second ejector plate. The ejector pin is configured to pass through the upper mold plate and the upper mold core, and the ejector pin is movable relative to the upper mold plate and the upper mold core. The lower mold core is located in the axial extension direction of the ejector pin. The upper mold core and the lower mold core are used for injection molding products, and the ejector pin is used to push the product of one color.

[0005] Optionally, the upper template is provided with an assembly groove, and the first ejector plate and the second ejector plate are located in the assembly groove.

[0006] Furthermore, the first ejector plate is provided with a first guide hole, and the second ejector plate is provided with a second guide hole. The first guide hole and the second guide hole are connected. The upper mold plate is provided with a first injection hole and a second injection hole. The upper port of the first injection hole and the upper port of the second injection hole are located in the assembly groove. The upper port of the first injection hole and the upper port of the second injection hole are connected to the second guide hole. The lower port of the first injection hole and the lower port of the second injection hole are connected to the interior of the upper mold core.

[0007] Furthermore, a flow guide block is provided in the assembly groove, and a flow guide groove and a receiving groove are provided at the top of the flow guide block. The receiving groove is located in the middle of the flow guide groove, and the two ends of the flow guide groove are respectively connected to the first flow guide hole. The receiving groove is used to contain the injection molding liquid.

[0008] Furthermore, the guide block is provided with a first diversion hole and a second diversion hole. The two ends of the guide groove are respectively connected to the upper port of the first diversion hole and the upper port of the second diversion hole. The lower port of the first diversion hole is connected to the upper port of the first injection hole, and the lower port of the second diversion hole is connected to the upper port of the second injection hole.

[0009] Furthermore, the first ejector plate and the second ejector plate are provided with a plurality of limiting blocks, and the guide block is provided with a plurality of limiting grooves, and the limiting blocks are engaged in the limiting grooves.

[0010] Optionally, the ejector pin has a head, which is disposed on the first ejector pin plate.

[0011] Optionally, it also includes multiple return rods, with multiple return holes provided on the lower template, and rubber plugs provided in the return holes. The upper end of the return rod is connected to the first ejector plate and the second ejector plate, and the lower end of the return rod is inserted into the rubber plug.

[0012] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: This utility model discloses an easily separable two-color mold. Because the spring is compressed at the end, when the upper mold plate is lifted upward, the limiting rod moves upward with the upper mold plate, so the spring will relax and reset. The first ejector plate, the second ejector plate, and the ejector pins will not move. When the upper mold plate moves upward, the upper mold core will also move upward. In this way, the single-color product in the upper mold core and the lower mold core will be pushed downward by the ejector pins. The upper mold core will move away from the single-color product, so the single-color product can easily fall off the upper mold core. Therefore, the problem of the difficulty of single-color product falling off the upper mold core is solved. Attached Figure Description

[0013] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings: Figure 1 This is a perspective view of a product-separable two-color mold according to a preferred embodiment of the present utility model; Figure 2 This is a three-dimensional view of the upper template without the first ejector plate; Figure 3 This is the second perspective view of the template above; Figure 4 This is a schematic diagram of the return rod and ejector pin inside the mold; Figure 5 This is an exploded view of the upper template and the upper mold core; Figure 6 yes Figure 5 The enlarged view of section A shown in the image.

[0014] The reference numerals in the attached figures are explained as follows: 1. Upper mold plate; 2. Upper mold core; 3. Lower mold plate; 4. Lower mold core; 5. Separation assembly; 6. Guide block; 7. Limiting block; 8. Return rod; 11. Assembly slot; 13. First injection hole; 14. Second injection hole; 51. First ejector plate; 52. Second ejector plate; 53. Limiting rod; 54. Spring; 55. Ejector pin; 56. End; 57. First guide hole; 58. Second guide hole; 59. Ejector head; 61. Guide groove; 62. Receiving groove; 63. First diversion hole; 64. Second diversion hole; 65. Limiting groove; 81. Return hole; 82. Rubber plug. Detailed Implementation

[0015] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0018] like Figure 1 and Figure 2 and Figure 3 As shown, a product-separable two-color mold includes an upper template 1, an upper mold core 2, a lower template 3, a lower mold core 4, and a separation component 5. The upper mold core 2 is disposed on the upper template 1, and the lower mold core 4 is disposed on the lower template 3. The upper mold core 2 and the lower mold core 4 are arranged opposite to each other, with the upper mold core 2 located above the lower mold core 4.

[0019] The separation assembly 5 includes a first ejector plate 51, a second ejector plate 52, a limiting rod 53, a spring 54, and an ejector pin 55. The second ejector plate 52 is fixedly disposed above the upper template 1. The first ejector plate 51 is connected to the upper end of the second ejector plate 52. The first ejector plate 51 and the second ejector plate 52 are connected by a screw. The limiting rod 53 is threadedly connected to the upper template 1. By rotating the limiting rod 53, the height of the limiting rod 53 on the upper template 1 can be adjusted.

[0020] The limiting rod 53 passes through the first ejector plate 51 and the second ejector plate 52. The limiting rod 53 can also move on the first ejector plate 51 and the second ejector plate 52. The limiting rod 53 has an end 56. A spring 54 is sleeved on the limiting rod 53. The two ends of the spring 54 abut against the end 56 and the first ejector plate 51 respectively. In this example, the spring 54 is in a compressed state when the injection molded product is being produced.

[0021] Furthermore, the spring 54 can also pass through the first ejector plate 51, and the two ends of the spring 54 abut against the second ejector plate 52 and the end 56, respectively.

[0022] Ejector pin 55 is connected to the first ejector plate 51 and the second ejector plate 52. Ejector pin 55 can move together with the first ejector plate 51 and the second ejector plate 52. Ejector pin 55 is configured to pass through the upper mold plate 1 and the upper mold core 2, and ejector pin 55 can move relative to the upper mold plate 1 and the upper mold core 2.

[0023] The lower mold core 4 is located in the axial extension direction of the ejector pin 55. The upper mold core 2 and the lower mold core 4 are used for injection molding of a single-color product. The ejector pin 55 is used to push the single-color product. After the upper mold core 2 and the lower mold core 4 have finished injection molding the single-color product, the upper mold plate 1 is lifted upward. Then the limit rod 53 and the upper mold core 2 move upward together. The first ejector plate 51 is fixed above the upper mold plate 1. There is a set distance between the first ejector plate 51 and the upper end of the upper mold plate 1. In this way, the first ejector plate 51 and the second ejector plate 52 are fixed and will not move upward.

[0024] Under the action of elastic force, the spring 54, which is in a compressed state, will return to its natural extended state. Therefore, the spring 54 exerts downward pressure on the first ejector plate 51. As a result, the first ejector plate 51 and the second ejector plate 52 will not tend to move upward. Thus, the ejector pin 55 remains stationary. The upper mold plate 1 and the upper mold core 2 move upward away from the single-color product, while the upper end of the single-color product rests against the lower end of the multiple ejector pins 55. This is equivalent to the ejector pins 55 pushing the single-color product downward, separating it from the upper mold core 2. The single-color product remains in the lower mold core 4. Then, the lower mold plate 3 is rotated 180°, so that the single-color product and the lower mold core 4 also rotate 180° together. Then, the upper mold plate 1 and the upper mold core 2 are reset downward, and the two-color product is injected again in the lower mold core 4 and the upper mold core 2.

[0025] like Figure 4 and Figure 5 and Figure 6 As shown, the upper template 1 is provided with an assembly groove 11. The first ejector plate 51 and the second ejector plate 52 are located in the assembly groove 11, that is, the first ejector plate 51 and the second ejector plate 52 are fixed in the assembly groove 11, and the second ejector plate 52 is located above the bottom end of the assembly groove 11.

[0026] The first ejector plate 51 is provided with a first guide hole 57, and the second ejector plate 52 is provided with a second guide hole 58. The first guide hole 57 and the second guide hole 58 are connected. The upper mold plate 1 is provided with a first injection hole 13 and a second injection hole 14. The upper port of the first injection hole 13 and the upper port of the second injection hole 14 are located in the assembly groove 11. The upper port of the first injection hole 13 and the upper port of the second injection hole 14 are connected to the second guide hole 58. The lower port of the first injection hole 13 and the lower port of the second injection hole 14 are connected to the interior of the upper mold core 2. The first injection hole 13 and the second injection hole 14 are used for the flow of injection liquid.

[0027] A flow guide block 6 is provided in the assembly groove 11. The top of the flow guide block 6 is provided with a flow guide groove 61 and a receiving groove 62. The receiving groove 62 is located in the middle of the flow guide groove 61 and is used to receive the injection molding liquid. The injection molding liquid flows from the receiving groove 62 to the flow guide grooves 61 at both ends. The two ends of the flow guide groove 61 are respectively connected to the first flow guide hole 57. The injection molding liquid enters the first flow guide hole 57 from the flow guide groove 61, then to the second flow guide hole 58, and finally to the first injection hole 13 and the second injection hole 14.

[0028] Furthermore, the guide block 6 is provided with a first diversion hole 63 and a second diversion hole 64. The two ends of the guide groove 61 are respectively connected to the upper ports of the first diversion hole 63 and the second diversion hole 64. The lower port of the first diversion hole 63 is connected to the upper port of the first injection hole 13, and the lower port of the second diversion hole 64 is connected to the upper port of the second injection hole 14. The injection liquid flows from the first diversion hole 63 and the second diversion hole 64 into the first injection hole 13 and the second injection hole 14, respectively.

[0029] Multiple limiting blocks 7 are provided on the first ejector plate 51 and the second ejector plate 52. The limiting blocks 7 extend into the first guide hole 57 and the second guide hole 58. Multiple limiting grooves 65 are provided on the guide block 6. The limiting blocks 7 are engaged in the limiting grooves 65, so that the guide block 6 is not easy to loosen.

[0030] The ejector pin 55 has a head 59, which is disposed on the first ejector plate 51 and fixed inside the first ejector plate 51.

[0031] It also includes multiple return rods 8, and multiple return holes 81 are provided on the lower mold plate 3. A rubber plug 82 is provided in the return hole 81. The upper end of the return rod 8 is connected to the first ejector plate 51 and the second ejector plate 52. That is, the first ejector plate 51 and the second ejector plate 52 are fixed on the return rod 8. The lower end of the return rod 8 is inserted into the rubber plug 82. When the lower end of the return rod 8 is demolded, it will fall out of the rubber plug 82. The return rod 8 assists the spring 54 to work. When demolding, the return rod 8 and the spring 54 keep the ejector pin 55 stationary. When the mold is closed, the return rod 8 pushes the first ejector plate 51 and the second ejector plate 52 upward.

[0032] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A product-separable two-color mold, comprising an upper template (1), an upper mold core (2), a lower template (3), a lower mold core (4), and a separation component (5), wherein the upper mold core (2) is disposed on the upper template (1), the lower mold core (4) is disposed on the lower template (3), the upper mold core (2) and the lower mold core (4) are arranged opposite to each other, and the upper mold core (2) is located above the lower mold core (4), characterized in that, The separation assembly (5) includes a first ejector plate (51), a second ejector plate (52), a limiting rod (53), a spring (54), and an ejector pin (55). The second ejector plate (52) is fixedly disposed above the upper template (1). The first ejector plate (51) is connected to the upper end of the second ejector plate (52). The limiting rod (53) is threadedly connected to the upper template (1). The limiting rod (53) passes through the first ejector plate (51) and the second ejector plate (52). The limiting rod (53) has an end (56). The spring (54) is sleeved on the limiting rod (53). The two ends of the spring (54) abut against the end (56) and the first ejector plate (51) respectively. The ejector pin (55) is connected to the first ejector plate (51) and the second ejector plate (52). The ejector pin (55) is configured to pass through the upper mold plate (1) and the upper mold core (2), and the ejector pin (55) is movable relative to the upper mold plate (1) and the upper mold core (2). The lower mold core (4) is located in the axial extension direction of the ejector pin (55). The upper mold core (2) and the lower mold core (4) are used for injection molding of a single-color product, and the ejector pin (55) is used to push the single-color product.

2. The product-separable two-color mold according to claim 1, characterized in that, The upper template (1) is provided with an assembly groove (11), and the first ejector plate (51) and the second ejector plate (52) are located in the assembly groove (11).

3. The product-separable two-color mold according to claim 2, characterized in that, The first ejector plate (51) is provided with a first guide hole (57), and the second ejector plate (52) is provided with a second guide hole (58). The first guide hole (57) communicates with the second guide hole (58). The upper mold plate (1) is provided with a first injection hole (13) and a second injection hole (14). The upper port of the first injection hole (13) and the upper port of the second injection hole (14) are located in the assembly groove (11). The upper port of the first injection hole (13) and the upper port of the second injection hole (14) communicate with the second guide hole (58). The lower port of the first injection hole (13) and the lower port of the second injection hole (14) communicate with the interior of the upper mold core (2).

4. The product-separable two-color mold according to claim 3, characterized in that, The assembly groove (11) is provided with a flow guide block (6), and the top of the flow guide block (6) is provided with a flow guide groove (61) and a receiving groove (62). The receiving groove (62) is located in the middle of the flow guide groove (61). The two ends of the flow guide groove (61) are respectively connected to the first flow guide hole (57). The receiving groove (62) is used to contain the injection molding liquid.

5. The product-separable two-color mold according to claim 4, characterized in that, The guide block (6) is provided with a first diversion hole (63) and a second diversion hole (64). The two ends of the guide groove (61) are respectively connected to the upper port of the first diversion hole (63) and the upper port of the second diversion hole (64). The lower port of the first diversion hole (63) is connected to the upper port of the first injection hole (13), and the lower port of the second diversion hole (64) is connected to the upper port of the second injection hole (14).

6. The product-separable two-color mold according to claim 4, characterized in that, The first ejector plate (51) and the second ejector plate (52) are provided with a plurality of limiting blocks (7), and the guide block (6) is provided with a plurality of limiting grooves (65). The limiting blocks (7) are engaged in the limiting grooves (65).

7. The product-separable two-color mold according to claim 1, characterized in that, The ejector pin (55) has a head (59) disposed on the first ejector plate (51).

8. The product-separable two-color mold according to claim 1, characterized in that, It also includes multiple return rods (8), and multiple return holes (81) are provided on the lower template (3). A rubber plug (82) is provided in the return hole (81). The upper end of the return rod (8) is connected to the first ejector plate (51) and the second ejector plate (52), and the lower end of the return rod (8) is inserted into the rubber plug (82).

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