Rapid forming foam mold for product with complex shape

Abstract

The utility model relates to a quick forming foam mold for products with complex shapes, which belongs to the technical field of foam molds and comprises a fixing plate, and storage cabinets are assembled on the left side and the right side of the lower surface of the fixing plate. According to the rapid forming foam mold for the product in the complex shape, foam raw materials can be poured into the injection molding chamber in the complex shape through the injection molding pipeline, the foam raw materials in the injection molding chamber in the complex shape are heated through the heating plate, then rapid forming of the mold is facilitated, and foam in the complex shape can be formed through the injection molding chamber in the complex shape; then formed foam in the injection molding chamber in a complex shape can be cooled, water in an annular cooling pipe can be conveyed into a water tank through a pipeline by starting a water pump for circulating cooling, and the water in the annular cooling pipe can be pumped out by closing an electromagnetic valve in an output pipe and then starting the water pump; therefore, the cooling forming efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foam molds, in particular to a rapid prototyping foam mold for products with complex shapes. Background Art

[0002] Production technology is developing better and better, and people are becoming more and more demanding in the use of their time. In life, foam is a kind of polymer material formed by a large number of gas micropores dispersed in solid plastics. It has the characteristics of light weight, heat insulation, sound absorption, shock absorption, etc., and its dielectric properties are better than those of the matrix resin. It has a wide range of uses. Complex-shaped products are also a type of foam. Foam molds can be used to quickly form foam products of complex shapes.

[0003] For example, Chinese patent CN210733020U discloses a rapid prototyping solid foam production mold, including a mold main box, an injection chamber is provided on the mold main box, and a connection component is connected to the outer wall of the mold main box, a closing cover is fixed on the other end of the connection component, and an injection port is provided on the closing cover. The rapid prototyping solid foam production mold is provided with two arc structures provided on the closing covers to form a circular structure, which is convenient for the arc structures provided on the two closing covers to form a circular structure to fix the injection port, so that the two closing covers are connected to the injection port through the arc structures provided thereon, and the foam stock solution is conveniently injected into the injection chamber through the injection port, and at the same time, the mold main box is provided with a groove structure provided thereon to connect with the anti-overflow plate, so that the two mold main boxes are conveniently connected to the two anti-overflow plates respectively, so that the connection between the closing cover and the mold main box is convenient to be connected through the anti-overflow plate, and a gap between the closing cover and the mold main box is avoided.

[0004] Although the above patent facilitates the connection of the two mold main boxes with the two anti-overflow plates respectively, thereby facilitating the connection of the closing cover and the mold main box through the anti-overflow plate to avoid the existence of a gap between the closing cover and the mold main box, the patent does not set a heat dissipation structure in the mold manufacturing process, which will lead to the general efficiency of foam cooling and molding inside the injection molding chamber, reducing practicality. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a rapid prototyping foam mold for products of complex shapes, which has the advantages of improving the cooling and molding efficiency, and solves the problem that the heat dissipation structure is not set in the mold making, which leads to the general efficiency of the foam cooling and molding inside the injection molding chamber and reduces the practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rapid prototyping foam mold for complex-shaped products, comprising a fixed plate, storage cabinets are installed on both the left and right sides of the lower surface of the fixed plate, two drawers are slidably connected to the front of the storage cabinet, a handle is provided on the front of the drawer, supporting feet are fixed at the four corners of the lower surface of the storage cabinet, a mold box is fixed on the upper surface of the fixed plate, a complex-shaped injection molding chamber is opened inside the mold box, a cooling mechanism is provided on the upper surface of the fixed plate, and a driving mechanism is provided on the lower surface of the fixed plate;

[0007] The cooling mechanism includes a support frame fixed on the upper surface of the fixed plate, a water tank is fixed on the upper surface of the support frame, a water pump is arranged on the upper surface of the support frame, the input end of the water pump is connected with the right side of the water tank through a pipeline, an annular cooling pipe is fixed on the outer side of the mold box, the output end of the water pump is connected with one end of the annular cooling pipe through a pipeline, and a heat dissipation fin is sealed and fixed through the left side of the water tank.

[0008] Furthermore, the cooling mechanism also includes an output pipe connected to the left side of the water tank, one end of the output pipe away from the water tank is connected to one end of the annular cooling pipe, and an electromagnetic valve is arranged in the output pipe.

[0009] Furthermore, the driving mechanism includes a first electric push rod fixed to the lower surface of the fixed plate through a mounting frame, a heating plate is placed on the bottom wall of the inner cavity of the complex shape injection molding chamber, the heating plate cooperates with the gap of the complex shape injection molding chamber, and the outer side of the output shaft of the first electric push rod passes through the fixed plate and the mold box and is fixedly connected to the lower surface of the heating plate.

[0010] Furthermore, the outer side of the output shaft of the first electric push rod is slidably connected to the inside of the fixed plate and the mold box, the second electric push rod is fixed to the top wall of the inner cavity of the support frame, and a sealing cover is fixed to the outer side of the output shaft of the second electric push rod, the lower surface of the sealing cover is in contact with the upper surface of the mold box, and the upper surface of the sealing cover is connected to an injection pipe.

[0011] Furthermore, connecting plates are fixed on opposite sides of the left and right storage cabinets.

[0012] Furthermore, the first electric push rod is located on the longitudinal center axis of the fixing plate.

[0013] Furthermore, the heating plate moves linearly up and down inside the complex-shaped injection molding chamber.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The rapid prototyping foam mold for complex-shaped products can pour foam raw materials into the complex-shaped injection molding chamber through the injection molding pipe, heat the foam raw materials in the complex-shaped injection molding chamber through the heating plate, and thus facilitate the rapid prototyping of the mold, and can form complex-shaped foam through the complex-shaped injection molding chamber. After heating and injection molding, the electromagnetic valve in the output pipe can be opened, and the water inside the water tank flows to the inside of the annular cooling pipe, and then the molded foam inside the complex-shaped injection molding chamber can be cooled to improve the cooling molding efficiency. By turning on the water pump, the water inside the annular cooling pipe can be transported to the inside of the water tank through the pipe for circulating cooling. By closing the electromagnetic valve in the output pipe and then turning on the water pump, the water inside the annular cooling pipe can be pumped out so that the foam mold can be injected again, thereby improving the cooling molding efficiency.

[0016] 2. For the rapid prototyping foam mold of the complex-shaped product, after the foam mold is cooled, the first electric push rod and the second electric push rod can be started, the outer side of the output shaft of the second electric push rod drives the sealing cover to move upward, and then the outer side of the output shaft of the first electric push rod drives the heating plate to move upward inside the complex-shaped injection molding chamber and drives the foam after injection molding to move out of the complex-shaped injection molding chamber, so as to facilitate material removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the storage cabinet of the utility model;

[0019] Figure 3 This is a schematic diagram of the cooling mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the driving mechanism of the utility model.

[0021] In the figure: 1 fixed plate, 2 storage cabinet, 3 drawer, 4 handle, 5 support foot, 6 mold box, 7 complex shape injection molding room, 8 cooling mechanism, 801 support frame, 802 water tank, 803 water pump, 804 annular cooling pipe, 805 cooling fin, 806 output pipe, 9 driving mechanism, 901 first electric push rod, 902 heating plate, 903 second electric push rod, 904 sealing cover, 905 injection molding pipe. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-2 The rapid prototyping foam mold for complex-shaped products in this embodiment includes a fixed plate 1, and storage cabinets 2 are installed on the left and right sides of the lower surface of the fixed plate 1. Two drawers 3 are slidably connected to the front of the storage cabinet 2. A handle 4 is provided on the front of the drawer 3. Support feet 5 are fixed at the four corners of the lower surface of the storage cabinet 2. A mold box 6 is fixed on the upper surface of the fixed plate 1. A complex-shaped injection molding chamber 7 is opened inside the mold box 6. A cooling mechanism 8 is provided on the upper surface of the fixed plate 1. The cooling mechanism 8 improves the cooling molding efficiency. A driving mechanism 9 is provided on the lower surface of the fixed plate 1. The driving mechanism 9 is convenient for taking materials.

[0024] In this embodiment, a connecting plate is fixed on the opposite side of the left and right storage cabinets 2, and objects can be stored through the drawer 3. The mold box 6 can be made of copper, aluminum, iron, steel and other materials to facilitate heat conduction and heat dissipation.

[0025] See also Figure 3 In order to improve the cooling and molding efficiency, in this embodiment, the cooling mechanism 8 includes a support frame 801 fixed on the upper surface of the fixed plate 1, a water tank 802 is fixed on the upper surface of the support frame 801, a water pump 803 is arranged on the upper surface of the support frame 801, the input end of the water pump 803 is connected with the right side of the water tank 802 through a pipeline, an annular cooling pipe 804 is fixed on the outside of the mold box 6, the output end of the water pump 803 is connected with one end of the annular cooling pipe 804 through a pipeline, and a heat dissipation fin 805 is sealed and fixed through the left side of the water tank 802.

[0026] In this embodiment, after heating and injection molding, the electromagnetic valve in the output pipe 806 can be opened, and the water inside the water tank 802 flows through the output pipe 806 to the inside of the annular cooling pipe 804, and then the molded foam inside the complex shape injection chamber 7 can be cooled to improve the cooling molding efficiency.

[0027] In this embodiment, the cooling mechanism 8 also includes an output pipe 806 connected to the left side of the water tank 802 , an end of the output pipe 806 away from the water tank 802 is connected to one end of the annular cooling pipe 804 , and an electromagnetic valve is provided in the output pipe 806 .

[0028] It should be noted that by turning on the water pump 803, the water inside the annular cooling pipe 804 can be transported to the inside of the water tank 802 through the pipeline for circulating cooling. The water inside the water tank 802 can be cooled by the heat dissipation fins 805. By closing the electromagnetic valve in the output pipe 806 and then turning on the water pump 803, the water inside the annular cooling pipe 804 can be pumped out so that the foam mold injection can be performed again.

[0029] See also Figure 4 In order to facilitate material removal, in this embodiment, the driving mechanism 9 includes a first electric push rod 901 fixed to the lower surface of the fixed plate 1 through a mounting frame, and a heating plate 902 is placed on the bottom wall of the inner cavity of the complex shape injection molding chamber 7. The heating plate 902 matches the gap of the complex shape injection molding chamber 7. The outer side of the output shaft of the first electric push rod 901 passes through the fixed plate 1 and the mold box 6 and is fixedly connected to the lower surface of the heating plate 902.

[0030] It should be noted that the injection molding pipe 905 can pour the foam raw material into the complex shape injection molding chamber 7, and the foam raw material in the complex shape injection molding chamber 7 is heated by the heating plate 902, thereby facilitating rapid molding of the mold. The complex shape injection molding chamber 7 can be used to mold foam of complex shape.

[0031] In this embodiment, the outer side of the output shaft of the first electric push rod 901 is slidably connected to the inside of the fixed plate 1 and the mold box 6, and the second electric push rod 903 is fixed to the top wall of the inner cavity of the support frame 801. After the foam mold is cooled, the first electric push rod 901 and the second electric push rod 903 can be started, and the outer side of the output shaft of the second electric push rod 903 drives the sealing cover 904 to move upward. The outer side of the output shaft of the second electric push rod 903 is fixed with a sealing cover 904, the lower surface of the sealing cover 904 is in contact with the upper surface of the mold box 6, and the upper surface of the sealing cover 904 is connected to the injection pipe 905. The first electric push rod 901 is located on the longitudinal center axis of the fixed plate 1, and the heating plate 902 makes linear movements up and down inside the complex shape injection chamber 7.

[0032] It should be noted that the outer side of the output shaft of the first electric push rod 901 drives the heating plate 902 to move upward inside the complex shape injection molding chamber 7 and drives the foam after injection molding to move out of the complex shape injection molding chamber 7, which is convenient for material removal and improves practicality.

[0033] The working principle of the above embodiment is:

[0034] (1) The foam raw material can be poured into the complex shape injection molding chamber 7 through the injection molding pipe 905, and the foam raw material in the complex shape injection molding chamber 7 can be heated by the heating plate 902, so as to facilitate the rapid molding of the mold. The complex shape injection molding chamber 7 can be used to mold complex shape foam. After heating and injection molding, the electromagnetic valve in the output pipe 806 can be opened, and the water inside the water tank 802 flows to the inside of the annular cooling pipe 804 through the output pipe 806. Then, the molded foam inside the complex shape injection molding chamber 7 can be cooled to improve the cooling molding efficiency. By turning on the water pump 803, the water inside the annular cooling pipe 804 can be transported to the inside of the water tank 802 through the pipeline for circulating cooling. The water inside the water tank 802 can be cooled by the heat dissipation fins 805. By closing the electromagnetic valve in the output pipe 806 and then turning on the water pump 803, the water inside the annular cooling pipe 804 can be pumped out so as to perform foam mold injection again.

[0035] (2) After the foam mold is cooled, the first electric push rod 901 and the second electric push rod 903 can be started. The outer side of the output shaft of the second electric push rod 903 drives the sealing cover 904 to move upward. Then, the outer side of the output shaft of the first electric push rod 901 drives the heating plate 902 to move upward inside the complex shape injection molding chamber 7 and drives the foam after injection molding to move out of the complex shape injection molding chamber 7, which is convenient for material removal and improves practicality.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A rapid prototyping foam mold for complex-shaped products, comprising a fixing plate (1), characterized in that: The left and right sides of the lower surface of the fixed plate (1) are equipped with storage cabinets (2); the front of the storage cabinet (2) is slidably connected with two drawers (3); the front of the drawer (3) is provided with a handle (4); the four corners of the lower surface of the storage cabinet (2) are fixed with supporting feet (5); the upper surface of the fixed plate (1) is fixed with a mold box (6); the interior of the mold box (6) is provided with a complex shape injection molding chamber (7); the upper surface of the fixed plate (1) is provided with a cooling mechanism (8); the lower surface of the fixed plate (1) is provided with a driving mechanism (9); The cooling mechanism (8) comprises a support frame (801) fixed on the upper surface of the fixed plate (1), a water tank (802) being fixed on the upper surface of the support frame (801), a water pump (803) being arranged on the upper surface of the support frame (801), an input end of the water pump (803) being connected to the right side of the water tank (802) through a pipeline, an annular cooling pipe (804) being fixed on the outer side of the mold box (6), an output end of the water pump (803) being connected to one end of the annular cooling pipe (804) through a pipeline, and a heat dissipation fin (805) being sealed and fixed through the left side of the water tank (802).

2. The rapid prototyping foam mold for complex-shaped products according to claim 1, characterized in that: The cooling mechanism (8) further comprises an output pipe (806) connected to the left side of the water tank (802), wherein one end of the output pipe (806) away from the water tank (802) is connected to one end of the annular cooling pipe (804), and an electromagnetic valve is arranged in the output pipe (806).

3. The rapid prototyping foam mold for complex-shaped products according to claim 1, characterized in that: The driving mechanism (9) comprises a first electric push rod (901) fixed to the lower surface of the fixed plate (1) by a mounting frame, a heating plate (902) is placed on the bottom wall of the inner cavity of the complex shape injection molding chamber (7), the heating plate (902) matches the gap of the complex shape injection molding chamber (7), and the outer side of the output shaft of the first electric push rod (901) passes through the fixed plate (1) and the mold box (6) and is fixedly connected to the lower surface of the heating plate (902).

4. The rapid prototyping foam mold for complex-shaped products according to claim 3, characterized in that: The outer side of the output shaft of the first electric push rod (901) is slidably connected to the inside of the fixed plate (1) and the mold box (6); the second electric push rod (903) is fixed to the top wall of the inner cavity of the support frame (801); the outer side of the output shaft of the second electric push rod (903) is fixed to a sealing cover (904); the lower surface of the sealing cover (904) is in contact with the upper surface of the mold box (6); and the upper surface of the sealing cover (904) is connected to an injection pipe (905).

5. The rapid prototyping foam mold for complex-shaped products according to claim 1, characterized in that: A connecting plate is fixed to the opposite sides of the left and right storage cabinets (2).

6. The rapid prototyping foam mold for complex-shaped products according to claim 3, characterized in that: The first electric push rod (901) is located on the longitudinal center axis of the fixed plate (1).

7. The rapid prototyping foam mold for complex-shaped products according to claim 3, characterized in that: The heating plate (902) moves linearly up and down inside the complex-shaped injection molding chamber (7).

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