Color-contrasting mold for shoes
By designing feeding holes and feeding channels in the shoe molding mold, the two colors of molding materials collide and fuse with each other in the molding cavity, solving the problem that existing molds cannot form gradient colors, realizing the gradient color effect on the upper and lower parts of the shoe, and improving production applicability and cost-effectiveness.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- JINJIANG SINCERE MOULD CO LTD
- Filing Date
- 2025-01-17
- Publication Date
- 2026-07-23
AI Technical Summary
Existing shoe molding molds can only inject molding material of one color into the molding cavity, making it impossible to achieve different colors on the upper and lower parts of the shoe. Secondary molding methods simply melt and connect the materials, failing to create a gradient color effect.
Design a color-blocking mold. By opening a feeding hole in the color-blocking plate and connecting it to the feeding column through the feeding channel, two colors of molding material can collide and merge with each other in the molding chamber. By utilizing the cooperation of the feeding channel and the feeding column, the two colors of molding material can be injected into different molding chambers respectively, and a gradient color is formed at the interface.
This technology allows for the simultaneous injection of two colors into the upper and lower parts of the shoe, creating a gradient effect. This enhances the shoe's aesthetics and versatility, making it suitable for producing shoes with different color ratios and saving production costs.
Smart Images
Figure CN2025073094_23072026_PF_FP_ABST
Abstract
Description
A color-blocking mold for shoes Technical Field
[0001] This utility model relates to the field of shoemaking, specifically to a color-blocking mold for shoes. Background Technology
[0002] Currently, most shoe molding molds include a first molding chamber for forming the upper part of the shoe and a second molding chamber for forming the lower part of the shoe. Different colored molding materials can be injected into the first molding chamber and the second molding chamber respectively. After cooling to a certain temperature, the partition between the first molding chamber and the second molding chamber is removed, so that the upper part of the shoe comes into contact with the lower part of the shoe. The mold is then heated again for secondary molding. After cooling, the shoe can be removed.
[0003] With the continuous development of the economy and society, people's pursuit of shoes has gradually increased. The above-mentioned molding mold and molding method can only inject molding raw materials of one color into the molding cavity. By injecting different colors into the two molding cavities, the upper and lower parts of the shoe are made to have different colors. Secondary molding is simply melting the parts of the upper and lower parts of the shoe that are in contact to connect them. Technical issues
[0004] The purpose of this invention is to provide a color-blocking mold that can simultaneously inject two colors of shoes into a molding cavity. Technical solutions
[0005] To achieve the above objectives, this utility model adopts the following technical solution:
[0006] A color-blocking mold for shoes includes a first template, a first color-separating plate, a cooling plate, a second color-separating plate, and a second template connected in sequence. The first template has a first molding chamber, and the second template has a second molding chamber.
[0007] The first color separation plate has a first feeding hole, and the first color separation plate has a first feeding channel. The first feeding hole is connected to the first feeding channel. The first feeding channel is connected to a first feeding column for feeding into the first molding chamber and a second feeding column for feeding into the second molding chamber.
[0008] The second color separation plate has a second feeding hole and a second feeding channel. The second feeding hole is connected to the second feeding channel. The second feeding channel is connected to a third feeding column for feeding into the first molding chamber and a fourth feeding column for feeding into the second molding chamber.
[0009] The first feed column is located in the first molding chamber away from the first feed hole, the third feed column is located in the first molding chamber near the first feed hole, the second feed column is located in the second molding chamber away from the first feed hole, and the fourth feed column is located in the second molding chamber near the first feed hole.
[0010] Preferably, the first template has two first molding chambers, the second template has two second molding chambers, and the first connecting channel is connected to two first feeding columns and two second feeding columns. The two first feeding columns are respectively arranged in a one-to-one correspondence with the two first molding chambers, and the two second feeding columns are respectively arranged in a one-to-one correspondence with the two second molding chambers.
[0011] The second connecting channel is connected to two third feed columns and two fourth feed columns. The two third feed columns are respectively arranged in a one-to-one correspondence with the two first molding chambers, and the two fourth feed columns are respectively arranged in a one-to-one correspondence with the two second molding chambers.
[0012] Preferably, the first feeding channel includes a first main channel, two first branch channels and two second branch channels. The two first branch channels are respectively connected to both sides of the first main channel, and the two second branch channels are respectively connected to both sides of the first main channel. The two first feed columns are respectively connected to the two first branch channels, and the two second feed columns are respectively connected to the two second branch channels.
[0013] The second feeding channel includes a second main channel, two third branch channels, and two fourth branch channels. The two third branch channels are connected to both sides of the second main channel, and the two fourth branch channels are connected to both sides of the second main channel. The two third feed columns are connected to the two third branch channels, and the two fourth feed columns are connected to the two fourth branch channels.
[0014] Preferably, the distance between the first feed column and the first feed hole is greater than the distance between the second feed column and the first feed hole, and the distance between the third feed column and the second feed hole is greater than the distance between the fourth feed column and the second feed hole.
[0015] Preferably, each of the first branch channels, each of the second branch channels, each of the third branch channels, and each of the fourth branch channels is connected to a flow control bolt.
[0016] Preferably, the central axis of the first feed hole is inclined towards the first main channel from one end away from the first main channel to the other end, and the central axis of the second feed hole is inclined towards the second main channel from one end away from the second main channel to the other end.
[0017] Preferably, the cooling plate has two temperature sensing holes arranged opposite each other. Beneficial effects
[0018] By adopting the aforementioned design scheme, the beneficial effects of this utility model are as follows: This application opens feeding holes on two color-separating plates respectively, and then, through the cooperation of the feeding channel and the feeding column, the two feeding holes can be connected to the molding chambers on the two templates respectively. Different colored molding materials can be injected through the two feeding holes, allowing the two colored molding materials to collide with each other in the molding chamber. On the one hand, this allows the formed shoe to have two colors, and on the other hand, it allows the two colored molding materials to partially blend during the collision process, that is, to form a gradient color at the junction of the two colors of the shoe. Attached Figure Description
[0019] Figure 1 is a front view of the color-blocking mold of this utility model;
[0020] Figure 2 is a schematic diagram of the structure of the first color-separating plate of this utility model;
[0021] Figure 3 is a schematic diagram of the structure of the second color-separating plate of this utility model;
[0022] Figure 4 is a schematic diagram of the feeding process of this utility model;
[0023] Figure 5 is a schematic diagram of the structure of the cooling plate of this utility model;
[0024] In the picture:
[0025] First template 10, first color separation plate 20, first feed hole 21, cooling plate 30, temperature sensing hole 31, second color separation plate 40, second feed hole 41, second template 50, first feed column 61, second feed column 62, third feed column 63, fourth feed column 64, first main channel 71, first branch channel 72, second branch channel 73, second main channel 81, third branch channel 82, fourth branch channel 83, flow control bolt 91. The best embodiment of the present invention
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] This invention uses the direction shown in Figure 1 as the reference orientation for the vertical direction, with the position closer to the forefoot of the human body as the front part of the shoe and the position closer to the arch of the human foot as the rear part of the shoe.
[0028] As shown in Figures 1-5, a shoe color-blocking mold includes a first template 10, a first color-separating plate 20, a cooling plate 30, a second color-separating plate 40, and a second template 50 connected sequentially from top to bottom by bolts. The first template 10 has two first molding chambers, and the second template 50 has two second molding chambers. The two first molding chambers and the two second molding chambers are respectively arranged in a one-to-one correspondence. The two first molding chambers are used to form the upper part of a pair of shoes, namely the upper part of the left foot and the upper part of the right foot, and the two second molding chambers are used to form the lower part of a pair of shoes.
[0029] The first color-separating plate 20 has a first feeding hole 21 and a first feeding channel. The first feeding hole 21 is connected to the first feeding channel. The first feeding channel is connected to a first feeding column 61 for feeding into the first molding chamber and a second feeding column 62 for feeding into the second molding chamber. In this embodiment, two first feeding columns 61 and two second feeding columns 62 are connected to the first connecting channel. The two first feeding columns 61 are respectively arranged in a one-to-one correspondence with the two first molding chambers, and the two second feeding columns 62 are respectively arranged in a one-to-one correspondence with the two second molding chambers. Molding material is injected into the two first molding chambers through the two first feeding columns 61, and molding material is injected into the two second molding chambers through the two second feeding columns 62.
[0030] In this embodiment, the first feeding channel includes a first main channel 71, two first branch channels 72, and two second branch channels 73. The two first branch channels 72 are respectively connected to both sides of the first main channel 71, and the two second branch channels 73 are respectively connected to both sides of the first main channel 71. The two first feeding columns 61 are respectively connected to the two first branch channels 72, and the two second feeding columns 62 are respectively connected to the two second branch channels 73. The distance between the first feeding column 61 and the first feeding hole 21 is greater than the distance between the second feeding column 62 and the first feeding hole 21. Since the second feeding column 62 needs to pass through the cooling plate 30 and the second color separation plate 40 to enter the second molding chamber, the distance between the second feeding column 62 and the first feeding hole 21 is shortened so that the first feeding column 61 and the second feeding column 62 can simultaneously inject molding material into the molding chamber, so that the upper and lower parts of the formed shoe correspond to each other.
[0031] The second color-separating plate 40 has a second feeding hole 41, and a second feeding channel is provided inside the second color-separating plate 40. The second feeding hole 41 is connected to the second feeding channel. A third feeding column 63 for feeding into the first molding chamber and a fourth feeding column 64 for feeding into the second molding chamber are connected to the second feeding channel. In this embodiment, two third feeding columns 63 and two fourth feeding columns 64 are connected to the second connecting channel. The two third feeding columns 63 are respectively arranged in a one-to-one correspondence with the two first molding chambers, and the two fourth feeding columns 64 are respectively arranged in a one-to-one correspondence with the two second molding chambers. Molding material is injected into the two first molding chambers through the two third feeding columns 63, and molding material is injected into the two second molding chambers through the two fourth feeding columns 64.
[0032] The second feeding channel includes a second main channel 81, two third branch channels 82, and two fourth branch channels 83. The two third branch channels 82 are connected to both sides of the second main channel 81, and the two fourth branch channels 83 are connected to both sides of the second main channel 81. The two third feed columns 63 are connected to the two third branch channels 82, and the two fourth feed columns 64 are connected to the two fourth branch channels 83. The distance between the third feed column 63 and the second feed hole 41 is greater than the distance between the fourth feed column 64 and the second feed hole 41. Since the fourth feed column 64 needs to pass through the cooling plate 30 and the second color separation plate 40 to enter the first molding chamber, the distance between the fourth feed column 64 and the second feed hole 41 is shortened to make the feeding speed of the third feed column 63 and the fourth feed column 64 the same.
[0033] The first feed column 61 is located in the first molding chamber away from the first feed hole 21, the third feed column 63 is located in the first molding chamber near the first feed hole 21, the second feed column 62 is located in the second molding chamber away from the first feed hole 21, and the fourth feed column 64 is located in the second molding chamber near the first feed hole 21. The molding material injected through the first feed column 61 and the second feed column 62 is used to form the front part of the shoe, and the molding material injected through the third feed column 63 and the fourth feed column 64 is used to form the rear part of the shoe.
[0034] As a preferred embodiment, each of the first branch channels 72, the second branch channels 73, the third branch channels 82, and the fourth branch channels 83 is connected to a flow control bolt 91. By adjusting the flow control bolt 91, the flow rate of the branch channels is adjusted. On the one hand, the proportion of molding material in the front and back of the shoe is controlled, that is, the ratio of the two colors on the shoe is controlled. On the other hand, the color-blocking mold can be applied to shoes with different color ratios, thereby improving the applicability of the color-blocking mold and saving production costs.
[0035] As a preferred embodiment, the central axis of the first feed hole 21 is inclined from one end away from the first main channel 71 towards the first main channel 71, and the central axis of the second feed hole 41 is inclined from one end away from the second main channel 81 towards the second main channel 81; so that the molding material can flow into the main channel more quickly when it is injected through the feed hole.
[0036] As a preferred embodiment, the cooling plate 30 has two oppositely arranged temperature sensing holes 31, which are used to house temperature sensing devices to monitor the temperature of the cooling plate 30.
[0037] The molding process of this color-blocking mold is as follows: Two different colors of molding material are injected into the first feed hole 21 and the second feed hole 41 using a conventional EVA two-color injection molding machine. One color of molding material is injected into the front of the first molding chamber through the first feed post 61 and into the front of the second molding chamber through the second feed post 62. The other color of molding material is injected into the rear of the second molding chamber through the third feed post 63 and into the rear of the first molding chamber through the fourth feed post 64. The first molding chamber and the second molding chamber... When the two molding materials in the room come into contact, they collide with each other, and the two colors of molding materials fuse together. Then, the first color separation plate 20, the cooling plate 30 and the second color separation plate 40 are removed, and the first template 10 and the second template 50 are closed. The mold is heated and foamed by a heating foaming machine, and then cooled and shaped by a conventional cold setting line to form a shoe. A gradient color is formed on the shoe. The speed at which the molding machine injects the molding material determines the impact force of the two molding materials, thereby controlling the amount of fusion of the two colors, that is, controlling the size of the gradient color area on the shoe.
[0038] In summary, this mold can simultaneously inject two different colored molding materials into the molding cavity, forming shoes with a gradient color in the middle and different colors at the front and back.
[0039] By adopting the aforementioned design scheme, the beneficial effects of this utility model are:
[0040] This application creates feeding holes on two color-separating plates and connects the feeding channels and feeding columns to the molding chambers on the two templates. Different colored molding materials can be injected through the two feeding holes, allowing the two colors to collide with each other in the molding chambers. This results in two colors in the finished shoe and also allows the two colors to partially blend during the collision, creating a gradient at the boundary between the two colors.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A color-blocking mold for shoes, characterized in that: It includes a first template, a first color separation plate, a cooling plate, a second color separation plate, and a second template connected in sequence. The first template has a first molding chamber, and the second template has a second molding chamber. The first color separation plate has a first feeding hole, and the first color separation plate has a first feeding channel. The first feeding hole is connected to the first feeding channel. The first feeding channel is connected to a first feeding column for feeding into the first molding chamber and a second feeding column for feeding into the second molding chamber. The second color separation plate has a second feeding hole and a second feeding channel. The second feeding hole is connected to the second feeding channel. The second feeding channel is connected to a third feeding column for feeding into the first molding chamber and a fourth feeding column for feeding into the second molding chamber. The first feed column is located in the first molding chamber away from the first feed hole, the third feed column is located in the first molding chamber near the first feed hole, the second feed column is located in the second molding chamber away from the first feed hole, and the fourth feed column is located in the second molding chamber near the first feed hole.
2. The color-blocking mold for shoes as described in claim 1, characterized in that: The first template has two first molding chambers, the second template has two second molding chambers, and the first connecting channel is connected to two first feeding columns and two second feeding columns. The two first feeding columns are respectively arranged in a one-to-one correspondence with the two first molding chambers, and the two second feeding columns are respectively arranged in a one-to-one correspondence with the two second molding chambers. The second connecting channel is connected to two third feed columns and two fourth feed columns. The two third feed columns are respectively arranged in a one-to-one correspondence with the two first molding chambers, and the two fourth feed columns are respectively arranged in a one-to-one correspondence with the two second molding chambers.
3. The color-blocking mold for shoes as described in claim 2, characterized in that: The first feeding channel includes a first main channel, two first branch channels and two second branch channels. The two first branch channels are respectively connected to both sides of the first main channel, and the two second branch channels are respectively connected to both sides of the first main channel. The two first feed columns are respectively connected to the two first branch channels, and the two second feed columns are respectively connected to the two second branch channels. The second feeding channel includes a second main channel, two third branch channels, and two fourth branch channels. The two third branch channels are connected to both sides of the second main channel, and the two fourth branch channels are connected to both sides of the second main channel. The two third feed columns are connected to the two third branch channels, and the two fourth feed columns are connected to the two fourth branch channels.
4. The color-blocking mold for shoes as described in claim 3, characterized in that: The distance between the first feed column and the first feed hole is greater than the distance between the second feed column and the first feed hole, and the distance between the third feed column and the second feed hole is greater than the distance between the fourth feed column and the second feed hole.
5. The color-blocking mold for shoes as described in claim 4, characterized in that: Each of the first branch channels, each of the second branch channels, each of the third branch channels, and each of the fourth branch channels is connected to a flow control bolt.
6. The color-blocking mold for shoes as described in claim 3 or 5, characterized in that: The central axis of the first feed hole is inclined towards the first main channel from one end away from the first main channel to the other end, and the central axis of the second feed hole is inclined towards the second main channel from one end away from the second main channel to the other end.
7. The color-blocking mold for shoes as described in claim 1, characterized in that: The cooling plate has two temperature sensing holes arranged opposite each other.