Correlation injection mold for silica gel and glass fiber bicolor materials

Abstract

The utility model discloses a silica gel and glass fiber bicolor material correlation injection mold which sequentially comprises a first mold base and a second mold base, a forming insert used for injection molding is arranged between the first mold base and the second mold base, and the first mold base is movably connected with the second mold base. Wherein the forming insert is provided with an assembly made of a double-color material through injection molding after the first mold base and the second mold base are opened and closed. Since the glass and the silica gel have different chemical and physical properties, they are difficult to bond, a firmer adhesion between the glass and the silica gel is achieved by surface treatment or introduction of an intermediate layer. The pressure parameters of the injection molding machine can be reasonably adjusted according to the requirements of injection molding products and the characteristics of the mold, and the stability and consistency in the injection molding process are ensured; and enough pressure maintaining time can be effectively guaranteed so as to ensure that a mold cavity is fully filled with melt, and the melt is cooled and cured, and the maintaining time is set according to material characteristics and product requirements, so that the molding quality of injection molding parts is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a silicone and glass fiber double-color material counter-injection injection mold. Background Art

[0002] With the development of injection molding technology, plastic products have been popularized in every corner of our lives. However, pure plastic products have a hard feel and are not suitable for all daily use. Therefore, people have invented a method of injecting silicone on glass products to improve the feel. The early production method was to mass-produce plastic parts first, and then place the plastic parts in silicone molds and inject silicone. This method has positioning errors for plastic parts, and is prone to uneven silicone, low yield, and labor-intensive. In view of this situation, how to allocate work for silicone molding and plastic molding to improve production efficiency is an urgent problem to be solved in the industry. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art solutions, the utility model provides a silicone and glass fiber two-color material counter-injection injection mold, which can effectively solve the problems raised by the background technology.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A silicone and glass fiber two-color material opposite injection mold, comprising a first mold base and a second mold base in sequence, wherein a molding insert for injection molding is arranged between the first mold base and the second mold base, and the first mold base is movably connected to the second mold base, wherein the molding insert is injection molded with a two-color material assembly after the first mold base and the second mold base are opened and closed;

[0006] The molding insert comprises a front mold and a rear mold, and both the front mold and the rear mold are provided with a shooting mechanism, wherein the front mold is arranged on a first mold base, and the rear mold is arranged on a second mold base;

[0007] The radiation mechanism comprises a first radiation tube and a second radiation tube, wherein the first radiation tube is arranged on the upper end surface of the assembly, and the second radiation tube is arranged on the lower end surface of the assembly, and the assembly comprises a PC layer, a one-color silicone layer and two-color glass fiber layers.

[0008] As a further description of the above technical solution, the assembly also includes a mold core, and an installation cavity is opened in the mold core, and the installation cavity is arranged at the bottom of the mold core.

[0009] As a further description of the above technical solution, the installation cavity is provided with a distribution valve for conveying coolant to different pipelines and a cooling pipeline connected to the distribution valve, and the cooling pipeline is arranged in the mold core in a circuitous manner.

[0010] As a further description of the above technical solution, the front mold and the rear mold are rectangular mounting seats, wherein the height of the front mold is smaller than the height of the rear mold.

[0011] As a further description of the above technical solution, the first pair of emitting tubes is used to transport single-color silicone material or PC material, and the second pair of emitting tubes is used to transport two-color glass fiber material, wherein the single-color silicone layer is tightly fitted with the two-color glass fiber layer.

[0012] As a further description of the above technical solution, the thickness of the single-color silicone layer is less than the thickness of the two-color glass fiber layer, and the PC layer is arranged between the single-color silicone layer and the two-color silicone layer.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a silicone and glass fiber double-color material counter-injection mold, which has at least one of the following beneficial effects during use:

[0015] Because glass and silicone have different chemical and physical properties, it is difficult to combine them. Through surface treatment or the introduction of an intermediate layer, a stronger adhesion can be achieved between glass and silicone. The pressure parameters of the injection molding machine can be reasonably adjusted according to the requirements of the injection molding product and the characteristics of the mold to ensure stability and consistency during the injection molding process; and during the injection molding process, sufficient holding time can be effectively guaranteed to ensure that the molten material fully fills the mold cavity and cools and solidifies. The holding time should be set according to the material characteristics and product requirements, thereby improving the molding quality of the injection molded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a silicone and glass fiber dual-color material injection mold of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the counter-injection mechanism of a silicone and glass fiber double-color material counter-injection injection mold of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of a mold core of a silicone and glass fiber dual-color material counter-injection mold of the utility model;

[0019] Figure 4 for Figure 3 Schematic diagram of the structure of part A;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of a mounting seat of a silicone and glass fiber dual-color material counter-injection mold of the utility model;

[0021] Figure 6The utility model is a schematic diagram of the symmetrical pipeline installation structure of a silicone and glass fiber two-color material counter-injection injection mold.

[0022] Numbers in the figure:

[0023] 1. First mold base; 101. Front mold; 102. Opposing mechanism; 103. Mounting base; 104. First opposing tube; 105. Second opposing tube; 2. Second mold base; 201. Back mold; 202. Mold core; 203. Cooling pipe; 204. Distribution valve; 3. Molding insert; 301. Assembly; 302. PC layer; 303. One-color silicone layer; 304. Two-color glass fiber layer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-6 As shown, the utility model provides a silicone and glass fiber two-color material injection mold, which includes a first mold base 1 and a second mold base 2 in sequence, and a molding insert 3 for injection molding is provided between the first mold base 1 and the second mold base 2, and the first mold base 1 and the second mold base 2 are movably connected, wherein the molding insert 3 is injection-molded with a two-color material assembly 301 after the first mold base 1 and the second mold base 2 are opened and closed.

[0026] Glass and silicone have different chemical and physical properties, making their combination difficult. Therefore, one of the technical innovations is to achieve stronger adhesion between glass and silicone through surface treatment or the introduction of an intermediate layer. This can be done by physical or chemical methods to enhance the interfacial adhesion to ensure that there is no separation or peeling during the molding process.

[0027] The molding insert 3 includes a front mold 101 and a rear mold 201, and both the front mold 101 and the rear mold 201 are provided with a shooting mechanism 102, wherein the front mold 101 is provided on the first mold base 1, and the rear mold 201 is provided on the second mold base 2;

[0028] The projection mechanism 102 includes a first projection tube 104 and a second projection tube 105 . The first projection tube 104 is disposed on the upper end surface of the assembly 301 , and the second projection tube 105 is disposed on the lower end surface of the assembly 301 . The assembly 301 includes a PC layer 302 , a single-color silicone layer 303 , and a two-color glass fiber layer 304 .

[0029] In order to achieve two-color molding in this embodiment, it is necessary to design and manufacture a two-color mold suitable for glass and silicone. This involves the optimization design of the mold structure and the improvement of the manufacturing process. The design of the mold should take into account factors such as the difference in fluidity of the two materials, the difference in thermal expansion coefficients, and the stress distribution during the molding process to ensure the quality and accuracy of the materials during the molding process. And select glass and silicone materials suitable for two-color mold molding, and perform performance testing and analysis to determine the best material combination.

[0030] It is further explained that the assembly 301 further includes a mold core 202 , and a mounting cavity is defined in the mold core 202 , and the mounting cavity is disposed at the bottom of the mold core 202 .

[0031] It is further explained that the installation cavity is provided with a distribution valve 204 for conveying coolant to different pipelines and a cooling pipeline 203 connected to the distribution valve 204, and the cooling pipeline 203 is arranged in the mold core 202 in a circuitous manner.

[0032] It is further explained that the front mold 101 and the rear mold 201 are a rectangular mounting seat 103, wherein the height of the front mold 101 is smaller than the height of the rear mold 201.

[0033] It is further explained that the first pair of emitting tubes 104 is used to transport single-color silicone material or PC material, and the second pair of emitting tubes 105 is used to transport two-color glass fiber material, wherein the single-color silicone layer 303 and the two-color glass fiber layer 304 are tightly fitted.

[0034] It is further explained that the thickness of the single-color silicone layer 303 is smaller than the thickness of the two-color glass fiber layer 304 , and the PC layer 302 is disposed between the single-color silicone layer 303 and the two-color silicone layer.

[0035] In summary, since glass and silicone have different chemical and physical properties, it is difficult to combine them. Through surface treatment or the introduction of an intermediate layer, a stronger adhesion can be achieved between glass and silicone. The pressure parameters of the injection molding machine can be reasonably adjusted according to the requirements of the injection molding product and the characteristics of the mold to ensure stability and consistency during the injection molding process; and during the injection molding process, sufficient holding time can be effectively guaranteed to ensure that the molten material fully fills the mold cavity and cools and solidifies. The holding time should be set according to the material characteristics and product requirements, thereby improving the molding quality of the injection molded parts.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A silicone and glass fiber double-color material injection mold, characterized by: A silicone and glass fiber two-color material opposite injection mold, comprising a first mold base and a second mold base in sequence, wherein a molding insert for injection molding is arranged between the first mold base and the second mold base, and the first mold base is movably connected to the second mold base, wherein the molding insert is injection molded with a two-color material assembly after the first mold base and the second mold base are opened and closed; The molding insert comprises a front mold and a rear mold, and both the front mold and the rear mold are provided with a shooting mechanism, wherein the front mold is arranged on a first mold base, and the rear mold is arranged on a second mold base; The radiation mechanism comprises a first radiation tube and a second radiation tube, wherein the first radiation tube is arranged on the upper end surface of the assembly, and the second radiation tube is arranged on the lower end surface of the assembly, and the assembly comprises a PC layer, a one-color silicone layer and two-color glass fiber layers.

2. The silicone and glass fiber dual-color material counter-injection mold according to claim 1, characterized in that: The assembly also includes a mold core, a mounting cavity is provided in the mold core, and the mounting cavity is arranged at the bottom of the mold core.

3. The silicone and glass fiber dual-color material counter-injection mold according to claim 2, characterized in that: The installation cavity is provided with a distribution valve for conveying coolant to different pipelines and a cooling pipeline connected to the distribution valve, and the cooling pipeline is arranged in the mold core in a circuitous manner.

4. The silicone and glass fiber dual-color material counter-injection mold according to claim 1, characterized in that: The front mold and the rear mold are rectangular mounting seats, wherein the height of the front mold is smaller than the height of the rear mold.

5. The silicone and glass fiber dual-color material counter-injection mold according to claim 1, characterized in that: The first pair of emitting tubes is used for conveying a single-color silicone material or a PC material, and the second pair of emitting tubes is used for conveying a two-color glass fiber material, wherein the single-color silicone layer is tightly fitted with the two-color glass fiber layer.

6. The silicone and glass fiber dual-color material counter-injection mold according to claim 1, characterized in that: The thickness of the single-color silicone layer is smaller than that of the two-color glass fiber layer, and the PC layer is arranged between the single-color silicone layer and the two-color silicone layer.

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