Double-color shoemaking mold capable of achieving one-time injection molding

Abstract

The utility model provides a one-time injection molding double-color shoemaking mold which sequentially comprises an upper mold assembly, a lower mold assembly and a lower mold assembly from top to bottom, the middle plate is provided with a water flow circulating pipeline; the lower die assembly is provided with a lower die core matched with the upper die core; wherein the upper surface of the middle plate is provided with a first hidden runner used for injection molding, the lower surface of the middle plate is provided with a second hidden runner used for injection molding, the two sides of the upper mold core are provided with fixing parts, and the upper mold assembly is provided with a fixing device used for being fixedly connected with the fixing parts. The problems that when a shoe making mold is opened for one time after shoe sole production is finished, the upper mold core may fall off, the upper mold core is damaged, and production is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of shoe-making moulds, in particular to a one-time injection-molded double-color shoe-making mould. Background Art

[0002] As we all know, most plastic products are formed by injection molds. With the help of injection molds, plastic products with the required shape can be efficiently formed, thus accelerating the development of injection molds.

[0003] Two-color mold: Two plastic materials are injected on the same injection molding machine, and the molding is done twice, but the product is only ejected once. At present, in the mold industry, two-color plastic parts have been widely used in daily necessities, decorative parts, and auto parts. Plastics of different colors and different components are combined in the same plastic part, making full use of the excellent properties of multiple plastics and improving the appearance and performance of the products. A Chinese patent for a mold for manufacturing a two-color EVA sole (publication number: CN102335992A) discloses a mold for manufacturing a two-color EVA sole, including an upper mold, a lower mold, an upper color separator, and a lower color separator. A mold cavity is provided in the middle of the upper mold and the lower mold, the upper color separator cooperates with the upper mold, and the lower color separator cooperates with the lower mold. Both the upper mold and the lower mold are provided with a channel for injecting EVA material into the mold cavity, the upper color separator is fixed on the upper side of a middle plate, the lower color separator is fixed on the lower side of the middle plate, a water circulation pipeline is provided in the middle plate, the upper end face of the upper mold is fitted with an upper heating plate arranged on a machine platform, the lower end face of the lower mold is fitted with a lower heating plate arranged on the machine platform, and the middle plate is connected to a moving mechanism arranged on the machine platform. Driven by the moving mechanism, the middle plate drives the upper color separator and the lower color separator to move out of the space between the upper mold and the lower mold or the space between the upper mold and the lower mold. This invention can produce two-color EVA soles, but when the mold is opened once after production is completed, the upper mold core may fall off, causing damage to the upper mold core and affecting production. Utility Model Content

[0004] In order to solve the problem that the upper mold core may fall off when the mold is opened once after the production of the sole is completed, causing damage to the upper mold core and affecting the production, the utility model provides a two-color shoe-making mold for one-time injection molding.

[0005] The embodiment of the utility model provides a one-time injection molding two-color shoe-making mold, which comprises, from top to bottom:

[0006] An upper die assembly is provided with an upper die core;

[0007] The middle plate is provided with water circulation pipelines;

[0008] A lower die assembly is provided with a lower die core that matches the upper die core;

[0009] Among them, the upper surface of the middle plate is provided with a first hidden flow channel for injection molding and the lower surface is provided with a second hidden flow channel for injection molding, the upper mold core is provided with fixing parts on both sides, and the upper mold assembly is provided with a fixing device for connecting and fixing with the fixing parts.

[0010] As described above, in a two-color shoe-making mold that is molded by one-time injection molding, the fixing device includes a first fixing mechanism and a second fixing mechanism installed on both sides of the upper mold assembly, the fixing part includes a first fixing groove and a second fixing groove arranged on both sides of the upper mold core, the first fixing mechanism includes a first fixing rod, the first fixing rod passes through the upper mold assembly and is clamped on the first fixing groove; the second fixing mechanism includes a second fixing rod, the second fixing rod passes through the upper mold assembly and is clamped on the second fixing groove.

[0011] As for the one-time injection-molded two-color shoe-making mold mentioned above, the fixing device also includes a first mounting seat and a second mounting seat embedded in both sides of the upper mold assembly, the first fixing rod is located on the outer side of the upper mold assembly and is provided with a first pressure rod head for plugging and pulling out the pull rod, a first elastic component is sleeved between the first pressure rod head and the first mounting seat, the second fixing rod is located on the outer side of the upper mold assembly and is provided with a second pressure rod head for plugging and pulling out the pull rod, a second elastic component is sleeved between the second pressure rod head and the second mounting seat.

[0012] As mentioned above, in a two-color shoe-making mold that is molded by one-time injection molding, the first fixing mechanism includes two first fixing rods that are arranged at intervals in the horizontal direction, and the two first fixing rods are connected by a first fixing plate; the second fixing mechanism includes two second fixing rods that are arranged at intervals in the horizontal direction, and the two second fixing rods are connected by a second fixing plate.

[0013] For example, in the above-mentioned one-shot injection-molded two-color shoe-making mold, the first mounting seat is connected to the upper mold assembly via a first fastener, and the second mounting seat is connected to the upper mold assembly via a second fastener.

[0014] As in the above-mentioned one-shot injection-molded two-color shoe-making mold, the first mounting seat is provided with a first limit block for limiting the movement of the first fixing rod, and the second mounting seat is provided with a second limit block for limiting the movement of the second fixing rod.

[0015] As mentioned above, in a two-color shoe-making mold that is molded by one-time injection molding, an injection nozzle for injecting rubber is provided on the edge of the upper mold assembly on the same side as the lower mold assembly, a first color injection nozzle is provided on the upper mold assembly and is connected to the first hidden flow channel, and a second color injection nozzle is provided on the lower mold assembly and is connected to the second hidden flow channel.

[0016] For example, in the above-mentioned one-shot injection molding two-color shoe-making mold, the water circulation pipeline includes a water inlet and a water outlet arranged on one side edge of the middle plate.

[0017] For example, in the above-mentioned one-time injection-molded two-color shoe-making mold, the first hidden flow channel is arranged on the upper surface of the middle plate, and the second hidden flow channel is arranged on the lower surface of the middle plate.

[0018] The utility model has at least the following beneficial effects:

[0019] 1. By arranging a fixing device on the upper mold assembly and fixing it with the fixing part of the upper mold core, the upper mold core will not fall and cause damage when the mold is opened once, thus ensuring smooth production.

[0020] 2. The fixing device is movably connected to the fixing part, and different mold cores can be replaced according to actual production needs.

[0021] 3. The mold can complete the injection molding of two different colors of plastic materials at one time, which makes the production of footwear products with two-color effects more efficient.

[0022] 4. The fixing device provides a quick and stable way to connect the mold core, which facilitates the assembly and disassembly of the mold and improves the compactness of the structure.

[0023] 5. The water circulation pipeline in the middle plate is designed to quickly cool the mold, which can significantly shorten the production cycle and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0025] Figure 2 A side sectional view of an embodiment of the utility model;

[0026] Figure 3 A front cross-sectional view of an embodiment of the utility model;

[0027] Figure 4 A top view of an embodiment of the utility model;

[0028] Figure 5 It is a schematic diagram of the structure of a plate in one embodiment of the utility model. DETAILED DESCRIPTION

[0029] The utility model provides the following description with reference to the accompanying drawings to help fully understand the various embodiments of the utility model as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the utility model.

[0030] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] It will be understood that when one element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.

[0032] The embodiment of the utility model provides a one-time injection molding two-color shoe-making mold, which comprises, from top to bottom:

[0033] The upper mold assembly 1 is provided with an upper mold core 101;

[0034] The middle plate 2 is provided with a water circulation pipeline 201;

[0035] The lower mold assembly 3 is provided with a lower mold core 301 that matches the upper mold core 101;

[0036] Among them, the upper surface of the middle plate 2 is provided with a first hidden flow channel 202 for injection molding and the lower surface is provided with a second hidden flow channel 203 for injection molding, the upper mold core 101 is provided with a fixing part 102 on both sides, and the upper mold assembly 1 is provided with a fixing device 103 for connecting and fixing with the fixing part 102.

[0037] The fixing parts 102 on both sides of the upper mold core 101 are combined with the fixing devices 103 on the upper mold assembly 1 to provide a stable connection, ensuring that the various parts of the mold can be accurately matched during the injection molding process. The upper mold core 101 will not fall off and cause damage to the upper mold core when the mold is opened once, ensuring the smooth progress of production. The upper surface and the lower surface of the middle plate 2 are respectively provided with a first hidden flow channel 202 and a second hidden flow channel 203. This design allows two colors of plastic materials to enter the mold through different flow channels, thereby achieving a two-color effect. The water circulation pipeline 201 in the middle plate 2 is designed to quickly cool the mold, which can significantly shorten the production cycle and improve production efficiency.

[0038] In some embodiments, the fixing device 103 includes a first fixing mechanism 106 and a second fixing mechanism 108 installed on both sides of the upper mold assembly 1, the fixing part 102 includes a first fixing groove 104 and a second fixing groove 105 arranged on both sides of the upper mold core 101, the first fixing mechanism 106 includes a first fixing rod 107, the first fixing rod 107 passes through the upper mold assembly 1 and is clamped on the first fixing groove 104; the second fixing mechanism 108 includes a second fixing rod 109, the second fixing rod 109 passes through the upper mold assembly 1 and is clamped on the second fixing groove 105.

[0039] The first fixing mechanism 106 and the second fixing mechanism 108 are installed on both sides of the upper mold assembly 1. This symmetrical design helps to maintain the balance and stability of the mold. The first fixing groove 104 and the second fixing groove 105 are designed on both sides of the upper mold core 101. These grooves are used to clamp the corresponding fixing rods to ensure that the upper mold core 101 will not move during the injection molding process. The first fixing rod 107 and the second fixing rod 109 pass through the upper mold assembly 1 and clamp on the corresponding fixing grooves. This design may provide a quick and firm connection method to facilitate the assembly and disassembly of the mold.

[0040] Furthermore, the fixing device 103 also includes a first mounting seat 110 and a second mounting seat 111 embedded in both sides of the upper mold assembly 1, the first fixing rod 107 is located on the outer side of the upper mold assembly 1 and is provided with a first pressure rod head 112 for plugging and pulling out the pull rod, and a first elastic component 113 is sleeved between the first pressure rod head 112 and the first mounting seat 110, the second fixing rod 109 is located on the outer side of the upper mold assembly 1 and is provided with a second pressure rod head 114 for plugging and pulling out the pull rod, and a second elastic component 115 is sleeved between the second pressure rod head 114 and the second mounting seat 111.

[0041] The first mounting seat 110 and the second mounting seat 111 are embedded in both sides of the upper mold assembly 1. This embedded design can improve the compactness of the structure, reduce space occupancy, and may enhance the overall stability. The outer sides of the first fixed rod 107 and the second fixed rod 109 are respectively provided with a first pressure rod head 112 and a second pressure rod head 114, which may be used for the operation of plugging and pulling the pull rod, providing a simple fixing and releasing mechanism. The first pressure rod head 112 and the first mounting seat 110 and the second pressure rod head 114 and the second mounting seat 111 are respectively sleeved with a first elastic component 113 and a second elastic component 115. The elastic component can provide a preload force to ensure that the fixed rod remains stable during the injection molding process, and can also absorb vibration and impact to protect the mold from damage.

[0042] Furthermore, the first fixing mechanism 106 includes two first fixing rods 107 spaced apart in the horizontal direction, and the two first fixing rods 107 are connected by a first fixing plate 116, and the second fixing mechanism 108 includes two second fixing rods 109 spaced apart in the horizontal direction, and the two second fixing rods 109 are connected by a second fixing plate 117.

[0043] By arranging the two fixing rods at intervals and connecting the fixing plates, a more stable frame structure can be formed, which helps to withstand the forces generated during the injection molding process.

[0044] In some embodiments, the first mounting seat 110 is connected to the upper mold assembly 1 through a first fastener 118 , and the second mounting seat 111 is connected to the upper mold assembly 1 through a second fastener 119 .

[0045] Furthermore, a first limiting block 120 for limiting the movement of the first fixing rod 107 is disposed on the first mounting seat 110 , and a second limiting block 121 for limiting the movement of the second fixing rod 109 is disposed on the second mounting seat 111 .

[0046] In some embodiments, an injection nozzle for injecting rubber is provided on the edge of the same side of the upper mold assembly 1 and the lower mold assembly 3. A first color injection nozzle 122 is provided on the upper mold assembly 1 and is connected to the first hidden flow channel 202. A second color injection nozzle 302 is provided on the lower mold assembly 3 and is connected to the second hidden flow channel 203.

[0047] By respectively arranging injection nozzles on the upper mold assembly 1 and the lower mold assembly 3, the mold can inject two colors of rubber materials at the same time to achieve a two-color effect.

[0048] In some embodiments, the water circulation pipeline 201 includes a water inlet 204 and a water outlet 205 disposed on one side edge of the middle plate 2 .

[0049] In some embodiments, the first hidden flow channel 202 is disposed on the upper surface of the middle plate 2, and the second hidden flow channel 203 is disposed on the lower surface of the middle plate 2. The hidden flow channel is disposed on the upper surface or the lower surface of the middle plate 2, which can avoid flow channel waste and thus save production costs.

[0050] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the utility model. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the utility model is provided only for illustration, and not for limiting the utility model as defined by the attached claims and their equivalents.

Claims

1. A one-time injection molding two-color shoe-making mold, characterized in that: From top to bottom they include: An upper mold assembly (1) is provided with an upper mold core (101); The middle plate (2) is provided with a water circulation pipeline (201); A lower mold assembly (3) is provided with a lower mold core (301) that matches the upper mold core (101); The upper surface of the middle plate (2) is provided with a first hidden channel (202) for injection molding, and the lower surface is provided with a second hidden channel (203) for injection molding, the upper mold core (101) is provided with fixing parts (102) on both sides, and the upper mold assembly (1) is provided with a fixing device (103) for connecting and fixing with the fixing parts (102).

2. A one-shot injection molding two-color shoe-making mold according to claim 1, characterized in that: The fixing device (103) comprises a first fixing mechanism (106) and a second fixing mechanism (108) installed on both sides of the upper mold assembly (1); the fixing portion (102) comprises a first fixing groove (104) and a second fixing groove (105) arranged on both sides of the upper mold core (101); the first fixing mechanism (106) comprises a first fixing rod (107), the first fixing rod (107) passes through the upper mold assembly (1) and is clamped on the first fixing groove (104); the second fixing mechanism (108) comprises a second fixing rod (109), the second fixing rod (109) passes through the upper mold assembly (1) and is clamped on the second fixing groove (105).

3. A one-shot injection molding two-color shoe-making mold according to claim 2, characterized in that: The fixing device (103) also includes a first mounting seat (110) and a second mounting seat (111) embedded in both sides of the upper mold assembly (1); the first fixing rod (107) is located on the outer side of the upper mold assembly (1) and is provided with a first pressure rod head (112) for inserting and pulling out the pull rod; a first elastic component (113) is sleeved between the first pressure rod head (112) and the first mounting seat (110); the second fixing rod (109) is located on the outer side of the upper mold assembly (1) and is provided with a second pressure rod head (114) for inserting and pulling out the pull rod; a second elastic component (115) is sleeved between the second pressure rod head (114) and the second mounting seat (111).

4. A one-shot injection molding two-color shoe-making mold according to claim 3, characterized in that: The first fixing mechanism (106) comprises two first fixing rods (107) arranged at intervals in the horizontal direction, and the two first fixing rods (107) are connected via a first fixing plate (116); the second fixing mechanism (108) comprises two second fixing rods (109) arranged at intervals in the horizontal direction, and the two second fixing rods (109) are connected via a second fixing plate (117).

5. The one-shot injection molding two-color shoe-making mold according to claim 3, characterized in that: The first mounting seat (110) is connected to the upper mold assembly (1) via a first fastener (118), and the second mounting seat (111) is connected to the upper mold assembly (1) via a second fastener (119).

6. A one-shot injection molding two-color shoe-making mold according to claim 4, characterized in that: The first mounting seat (110) is provided with a first limit block (120) for limiting the movement of the first fixing rod (107), and the second mounting seat (111) is provided with a second limit block (121) for limiting the movement of the second fixing rod (109).

7. A one-shot injection molding two-color shoe-making mold according to any one of claims 1 to 6, characterized in that: An injection nozzle for injecting rubber is provided on the edge of the same side of the upper mold assembly (1) and the lower mold assembly (3); a first color injection nozzle (122) is provided on the upper mold assembly (1) and is connected to the first hidden flow channel (202); and a second color injection nozzle (302) is provided on the lower mold assembly (3) and is connected to the second hidden flow channel (203).

8. A one-shot injection molding two-color shoe-making mold according to any one of claims 1 to 6, characterized in that: The water circulation pipeline (201) comprises a water inlet (204) and a water outlet (205) arranged on one side edge of the middle plate (2).

9. A one-shot injection molding two-color shoe-making mold according to any one of claims 1 to 6, characterized in that: The first hidden flow channel (202) is arranged on the upper surface of the middle plate (2), and the second hidden flow channel (203) is arranged on the lower surface of the middle plate (2).

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