Mould for producing light-weight materials based on GMPU process

Abstract

The utility model relates to the technical field of dies, and discloses a GMPU process-based die for producing light-weight materials, which comprises a lower die and an upper die, the upper die is arranged on the upper surface of the lower die, a lower die core is fixedly mounted on the lower die, a heat insulation plate is fixedly mounted on the lower die, a guide post is fixedly mounted on the lower die, and the heat insulation plate is fixedly mounted on the guide post. And a secondary forming driving cylinder is fixedly mounted on the lower die. The foaming punching die is applied to the GMPU technology, foaming and punching are not needed in the one-step method, productivity is reduced by half, energy consumption of a pressing machine is reduced by half, time consumed by manpower is reduced by half, secondary circulation time of products is shortened, production efficiency is doubled, the problem that products are not accurately positioned due to secondary punching in the two-step method is solved, and production efficiency is improved. And it is guaranteed that the stable cutting size meets the product contour tolerance requirement, and the problem that a two-step punching die can cause secondary pressing damage to a product is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold for producing lightweight materials based on a GMPU process. Background Art

[0002] A mold is a tool or device used to create shaped or cast objects. Molds are typically made of materials such as silicone, metal, and plastic. Their primary function is to replicate or produce a product of a given shape and size. Molds can be categorized into different types depending on the specific manufacturing process and requirements. "Hot mold" generally refers to molds used for hot press forming or hot compression molding. This process is commonly used in the processing of plastics or composites. Its basic principle is to pass raw materials (such as plastic sheets or thermoplastic composites) through a mold under high temperature and pressure to form the desired shape and size. During hot press forming, a preheated mold is typically used to ensure rapid heating and good fluidity of the material upon entering the mold. This method effectively improves material fluidity and molding efficiency, while ensuring the surface quality and dimensional accuracy of the molded part. Hot press forming is often suitable for producing parts requiring high precision and complex shapes, such as those in the automotive, aerospace, and electronics industries. The GMPU process involves implementing a product safety and hygiene management system throughout the entire production and processing process.

[0003] At present, the existing GMPU process mold needs to be foamed before punching during use, which affects production efficiency. There is also the problem of inaccurate positioning of the secondary punching product. Therefore, a mold for the production of lightweight materials based on the GMPU process is proposed to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a mold for producing lightweight materials based on the GMPU process in response to the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a mold for producing lightweight materials based on the GMPU process, comprising a lower mold and an upper mold, wherein the upper mold is arranged on the upper surface of the lower mold;

[0006] The lower mold is fixedly mounted with a lower mold core, a heat insulation plate, a guide column, a secondary molding drive cylinder, and a secondary molding slider.

[0007] A guide sleeve is fixedly mounted on the upper die, a secondary molding limit block is fixedly mounted on the upper die, a sharp blade is fixedly mounted on the upper die, and a flat blade is fixedly mounted on the upper die.

[0008] Preferably, the upper end of the guide column is inserted into the inside of the guide sleeve, and a hard foam material is placed between the lower mold and the upper mold. The setting of the guide column and the guide sleeve can guide the upper mold and the lower mold when they are closed, avoiding the problem of position offset when the upper mold and the lower mold are closed, and improving the accuracy when the upper mold and the lower mold are closed.

[0009] Preferably, a hard limit block is fixedly installed on the lower die, and a storage pad is fixedly installed on the lower die. The setting of the hard limit block can limit the upper die.

[0010] Preferably, a locking plate is fixedly mounted on the outer wall of the lower mold, and the other end of the locking plate is fixedly mounted on the outer wall of the upper mold. The setting of the locking plate can ensure that the upper and lower molds are closed and fixed when the molds are closed.

[0011] Preferably, the number of the guide pillars is four, and the four guide pillars are fixedly installed at the four corners of the upper surface of the lower mold respectively. The setting of the guide pillars and the guide sleeves can play a positioning role for the lower mold and the upper mold.

[0012] Preferably, a hanging handle is fixedly mounted on the outer wall of the lower mold, and an exhaust hole is provided on the lower mold core. The setting of the hanging handle can facilitate the lifting of the lower mold and the transfer of the mold.

[0013] The utility model adopts the above technical solution, which can bring the following beneficial effects:

[0014] 1. The mold for producing lightweight materials based on the GMPU process uses the foaming and punching mold in the GMPU process. In addition, the one-step method does not require foaming before punching, which reduces production capacity by half, press energy consumption by half, labor time by half, and the time for secondary circulation of products by half. The production efficiency is doubled, and the problem of inaccurate positioning of products in the two-step secondary punching method is solved, ensuring that the cutting size is stable and meets the product contour tolerance requirements, avoiding the problem of secondary damage to the product caused by the two-step punching mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the mold closing state of the utility model;

[0016] Figure 2 This is an axonometric diagram of the lower die of the utility model;

[0017] Figure 3 This is an axonometric diagram of the upper die of the utility model;

[0018] Figure 4 This is a schematic diagram of the side sectional structure of the lower mold of the utility model;

[0019] Figure 5 for Figure 4 A schematic diagram of the structure at center A;

[0020] Figure 6 This is a schematic diagram of the side sectional structure of the upper mold of the utility model;

[0021] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point B in the middle;

[0022] Figure 8 This is a schematic diagram of the side sectional structure of the secondary molding drive cylinder of the utility model.

[0023] In the figure: 1. Lower mold; 101. Lower mold core; 102. Hard limit block; 103. Heat insulation board; 104. Locking plate; 105. Guide column; 106. Secondary molding drive cylinder; 107. Secondary molding slider; 108. Exhaust hole; 2. Upper mold; 201. Guide sleeve; 202. Secondary molding limit block; 203. Sharp knife edge; 204. Flat knife edge; 3. Hard foam material; 4. Storage pad; 5. Hanging handle. DETAILED DESCRIPTION

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

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0027] See also Figure 1-8 , the technical solution provided by the utility model is: a mold for lightweight material production based on GMPU process, comprising a lower mold 1 and an upper mold 2, wherein the upper mold 2 is arranged on the upper surface of the lower mold 1;

[0028] A lower mold core 101 is fixedly mounted on the lower mold 1, a heat insulation plate 103 is fixedly mounted on the lower mold 1, a guide post 105 is fixedly mounted on the lower mold 1, a secondary molding drive cylinder 106 is fixedly mounted on the lower mold 1, and a secondary molding slider 107 is fixedly mounted on the telescopic end of the secondary molding drive cylinder 106;

[0029] A guide sleeve 201 is fixedly installed on the upper mold 2, a secondary molding limit block 202 is fixedly installed on the upper mold 2, a sharp blade 203 is fixedly installed on the upper mold 2, and a flat blade 204 is fixedly installed on the upper mold 2. By using the foaming and punching mold for the GMPU process, and the one-step method does not require foaming before punching, the production capacity is reduced by half, the energy consumption of the press is reduced by half, the labor time is reduced by half, the time for the secondary circulation of the product is reduced, the production efficiency is doubled, and the problem of inaccurate positioning of the two-step secondary punching product is solved, ensuring that the stable cutting size meets the product contour tolerance requirements, and avoiding the problem of secondary crushing of the product by the two-step punching mold.

[0030] The upper end of the guide post 105 is inserted into the inside of the guide sleeve 201, and a hard foam material 3 is placed between the lower mold 1 and the upper mold 2. The setting of the guide post 105 and the guide sleeve 201 can guide the upper mold 2 and the lower mold 1 when they are closed, avoiding the problem of position offset when the upper mold 2 and the lower mold 1 are closed, and improving the accuracy when the upper mold 2 and the lower mold 1 are closed.

[0031] A hard limit block 102 is fixedly installed on the lower die 1 , and a storage pad 4 is fixedly installed on the lower die 1 . The setting of the hard limit block 102 can limit the upper die 2 .

[0032] A locking plate 104 is fixedly mounted on the outer wall of the lower mold 1, and the other end of the locking plate 104 is fixedly mounted on the outer wall of the upper mold 2. The setting of the locking plate 104 can ensure that the upper mold 2 and the lower mold 1 are closed and fixed when the mold is closed.

[0033] There are four guide pillars 105 , which are fixedly mounted on the four corners of the upper surface of the lower die 1 . The guide pillars 105 , in conjunction with the guide sleeves 201 , can play a role in positioning the lower die 1 and the upper die 2 .

[0034] A hanging handle 5 is fixedly mounted on the outer wall of the lower mold 1, and an exhaust hole 108 is provided on the lower mold core 101. The arrangement of the hanging handle 5 makes it easy to lift the mold and facilitate the transfer of the mold.

[0035] The mold is a hot mold, the upper and lower mold temperatures are 120 degrees, the temperature is relatively high, the upper and lower molds are equipped with heat insulation plates 103, the mold is equipped with a thermometer to observe the temperature at any time, the knife edge is installed on the upper mold 2, the mold has one deflation and two punching functions.

[0036] Working principle: The long glass fiber is clamped by the clamping frame, and the hard foam material 3 is sprayed on both sides of the robot and put into the mold. The secondary molding slider 107 is pushed in, and the press closes the mold to the position of the secondary molding slider 107. At this time, the knife edge has not cut the product yet and the gap between the upper and lower molds is 20mm. After the deflation is completed, the secondary molding slider 107 is retracted, and then the second punching is carried out. In this way, the gas in the cavity is reduced and discharged in advance, the surface quality of the foamed product is improved, and the product can also be cut, realizing a mold with foaming and punching integrated.

[0037] This utility model provides a mold for producing lightweight materials based on the GMPU process. There are many methods and approaches for implementing this technical solution. The above is only a preferred embodiment of the utility model. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the utility model, and such improvements and modifications should also be considered within the scope of protection of the utility model. Any components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A mold for producing lightweight materials based on the GMPU process, comprising a lower mold (1) and an upper mold (2), characterized in that: The upper mold (2) is arranged on the upper surface of the lower mold (1); A lower mold core (101) is fixedly mounted on the lower mold (1), a heat insulation plate (103) is fixedly mounted on the lower mold (1), a guide column (105) is fixedly mounted on the lower mold (1), a secondary molding driving cylinder (106) is fixedly mounted on the lower mold (1), and a secondary molding slider (107) is fixedly mounted on the telescopic end of the secondary molding driving cylinder (106); A guide sleeve (201) is fixedly mounted on the upper die (2), a secondary molding limit block (202) is fixedly mounted on the upper die (2), a sharp blade (203) is fixedly mounted on the upper die (2), and a flat blade (204) is fixedly mounted on the upper die (2).

2. The mold for producing lightweight materials based on the GMPU process according to claim 1, characterized in that: The upper end of the guide column (105) is inserted into the interior of the guide sleeve (201), and a hard foaming material (3) is placed between the lower mold (1) and the upper mold (2).

3. The mold for producing lightweight materials based on the GMPU process according to claim 1, characterized in that: A hard limit block (102) is fixedly mounted on the lower die (1), and a storage pad (4) is fixedly mounted on the lower die (1).

4. The mold for producing lightweight materials based on the GMPU process according to claim 1, characterized in that: A locking plate (104) is fixedly mounted on the outer wall of the lower mold (1), and the other end of the locking plate (104) is fixedly mounted on the outer wall of the upper mold (2).

5. The mold for producing lightweight materials based on the GMPU process according to claim 1, characterized in that: The number of the guide pillars (105) is four, and the four guide pillars (105) are respectively fixedly mounted on the four corners of the upper surface of the lower mold (1).

6. The mold for producing lightweight materials based on the GMPU process according to claim 1, characterized in that: A hanging handle (5) is fixedly mounted on the outer wall of the lower mold (1), and an exhaust hole (108) is provided on the lower mold core (101).

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