High-density EPS foam forming mold

Abstract

The utility model relates to the field of forming molds, and discloses a high-density EPS foam forming mold which comprises a fixed mold body, a plurality of supporting stand columns are fixedly installed at the positions, close to the corners, of the fixed mold body, top mounting plates are fixedly installed at the top ends of the supporting stand columns, and a forming mold cavity is formed in the position, close to the middle, of the top surface of the fixed mold body. A movable mold is arranged on the bottom surface of the top mounting plate, a vibration rod is started, the vibration rod operates to generate vibration, and after EPS foam raw material particles in a forming mold cavity are uniformly distributed, a worker starts an electric push rod I to drive a U-shaped plate to reset; then the hydraulic cylinder drives the module to enter the forming die cavity to perform EPS foam forming operation, so that EPS foam raw material particles can be promoted to collide with one another and move, free flowing and arrangement of the particles are facilitated, gaps among the particles are reduced, the filling density of the particles is improved, and therefore the uniformity of the EPS particles is improved; and the product quality after EPS foam molding is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of molding dies, and specifically relates to a high-density EPS foam molding die. Background Art

[0002] EPS foam molding mold is a mold used to make EPS foam products. It is mainly used to produce various EPS foam products such as EPS foam packaging boxes, foam boxes, foam boards, foam cups, etc. EPS foam molding molds usually consist of two parts; an upper mold and a lower mold. The upper mold and the lower mold each have the shape and contour of the desired product. A closed mold cavity is formed by combining the upper mold and the lower mold, and then EPS particles or pre-expanded EPS particles are injected into the mold. After heating and expansion, the desired EPS foam products are formed.

[0003] For example, a utility model patent with announcement number CN219325450U discloses a high-density EPS foam molding mold, including a mold body, wherein a foam lifting device is arranged inside the mold body, wherein the foam lifting device includes a first motor and a second connecting rod, wherein the other ends of the two second connecting rods are rotatably connected to the second rotating wheel through a pin shaft, and the second rotating wheel is rotatably connected to the lower surface of the mold base, and through the cooperation of the mold body and the foam lifting device, the first motor drives the gear to rotate, the gear drives the rack to move, and the rack drives the sleeve rod to move, and through the above method, the mold base can take out the processed EPS foam without knocking, thereby improving the processing quality of the EPS foam, and through the cooperation of the mold body, the vertical plate, the horizontal plate and the cover plate lifting device, through the above method, the cover plate can automatically press against the upper surface of the mold body, without manual handling, thereby reducing the workload of workers.

[0004] However, during actual use, it was found that when personnel placed the raw material particles of high-density EPS foam in the mold body, the EPS foam raw material particles would be unevenly distributed and large gaps would be generated between the raw material particles, which would result in unstable quality and appearance defects of the molded EPS foam product. For this purpose, a high-density EPS foam molding mold is provided. Utility Model Content

[0005] The purpose of this application is to provide a high-density EPS foam molding mold in order to solve the above-mentioned problems.

[0006] The technical solution adopted in the present application is as follows: a high-density EPS foam molding mold, comprising a fixed mold, a plurality of supporting columns are fixedly installed near the corners of the fixed mold, and a top mounting plate is fixedly installed on the top of the plurality of supporting columns, a molding cavity is opened near the middle of the top surface of the fixed mold, a movable mold is arranged on the bottom surface of the top mounting plate, a module corresponding to the molding cavity is fixedly installed on the bottom surface of the movable mold, a U-shaped plate is fixedly installed on the top surface of the movable mold, a hydraulic cylinder is fixedly installed on the top surface of the top mounting plate, and the telescopic end of the hydraulic cylinder is connected to the U-shaped plate The top surface of the U-shaped plate is fixed, an electric push rod is fixedly installed on the inner top surface of the U-shaped plate, and a fixing plate is fixedly installed on the telescopic end of the electric push rod. The top surfaces of the movable mold and the module are provided with a plurality of circular connecting holes, and the top surface of the fixing plate is provided with a plurality of vibrating rods corresponding to the circular connecting holes, and one end of the vibrating rod is inserted into the inside of the circular connecting hole. The bottom surface of the module is provided with a rectangular hole connected with the circular connecting hole, and a rectangular sealing block is arranged inside the rectangular hole, and the bottom end of the vibrating rod is fixed to the top surface of the rectangular sealing block.

[0007] In a preferred embodiment, a groove is provided on the bottom surface of the fixed mold, and an electric push rod 2 is fixedly installed on the inner top surface of the groove. A push plate is provided on the inner bottom surface of the molding cavity, and the telescopic end of the electric push rod 2 extends into the interior of the molding cavity and is fixed to the bottom surface of the push plate.

[0008] In a preferred embodiment, a plurality of electric heating plates are fixedly mounted on the inner side wall of the fixed mold.

[0009] In a preferred embodiment, a plurality of support rods are fixedly mounted on the side of the fixed mold, and a control panel is fixedly mounted on one end of the plurality of support rods away from the fixed mold.

[0010] In a preferred embodiment, a plurality of circular through holes corresponding to the supporting columns are formed on the top surface of the movable mold near the corners, and one end of the supporting column passes through the inside of the circular through hole.

[0011] In a preferred embodiment, a plurality of support blocks are fixedly installed around the bottom surface of the fixed mold.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0013] 1. In the present application, due to the adoption of the above-mentioned scheme, the electric push rod drives the fixed plate to move downward, thereby facilitating the vibration rod to drive the rectangular sealing block to move downward, so that the vibration rod enters the EPS foam raw material particles inside the molding cavity, and then the personnel starts the vibration rod, and the vibration rod generates vibration during operation, so that the EPS foam raw material particles can collide and move with each other, which is conducive to the free flow and arrangement of the particles, reduces the gaps between the particles, and increases the filling density of the particles, thereby increasing the uniformity of the EPS particles and improving the quality of the product after EPS foam molding. When the EPS foam raw material particles inside the molding cavity are evenly distributed, the personnel starts the electric push rod to drive the U-shaped plate to reset, and then drives the module into the molding cavity through the hydraulic cylinder to carry out the EPS foam molding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 It is a schematic diagram of the side section structure of this application;

[0016] Figure 3 For this application Figure 1 Enlarged structural diagram at A in the middle.

[0017] Markings in the figure: 1. Fixed mold; 2. Support column; 3. Top mounting plate; 4. Molding cavity; 5. Moving mold; 6. Module; 7. U-shaped plate; 8. Hydraulic cylinder; 9. Electric push rod 1; 10. Fixed plate; 11. Circular connecting hole; 12. Vibrating rod; 13. Rectangular hole; 14. Rectangular sealing block; 15. Groove; 16. Electric push rod 2; 17. Push plate; 18. Electric heating plate; 19. Support rod; 20. Control panel; 21. Circular through hole; 22. Support block. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] refer to Figure 1 A high-density EPS foam molding mold includes a fixed mold 1, and a plurality of support blocks 22 are fixedly installed around the bottom surface of the fixed mold 1; through the multiple support blocks 22, the fixed mold 1 is easily supported and kept away from the ground.

[0020] refer to Figure 1 , Figure 2 A plurality of supporting columns 2 are fixedly installed near the corners of the fixed mold 1, and a top mounting plate 3 is fixedly installed on the top of the plurality of supporting columns 2. A molding cavity 4 is opened near the middle of the top surface of the fixed mold 1, and a plurality of electric heating plates 18 are fixedly installed on the inner wall of the fixed mold 1; the plurality of supporting columns 2 are arranged to facilitate the support and fixation of the top mounting plate 3, and the electric heating plates 18 are arranged to facilitate the heating of the EPS raw material particles inside the molding cavity 4 to soften and expand them.

[0021] refer to Figure 1 , Figure 2 A movable mold 5 is arranged on the bottom surface of the top mounting plate 3, and a module 6 corresponding to the molding cavity 4 is fixedly installed on the bottom surface of the movable mold 5. A plurality of circular through holes 21 corresponding to the supporting columns 2 are opened near the corners on the top surface of the movable mold 5, and one end of the supporting column 2 passes through the inside of the circular through hole 21; through the arranged module 6, it is convenient to apply a certain pressure to the EPS raw material particles inside the molding cavity 4 to ensure that the EPS raw material particles can fully expand during the heating process and fill the space inside the molding cavity 4.

[0022] refer to Figure 1 , Figure 2 A U-shaped plate 7 is fixedly installed on the top surface of the movable mold 5, a hydraulic cylinder 8 is fixedly installed on the top surface of the top mounting plate 3, the telescopic end of the hydraulic cylinder 8 is fixed to the top surface of the U-shaped plate 7, an electric push rod 9 is fixedly installed on the inner top surface of the U-shaped plate 7, and a fixed plate 10 is fixedly installed on the telescopic end of the electric push rod 9; the hydraulic cylinder 8 is arranged to facilitate the up and down movement of the U-shaped plate 7, the movable mold 5 and the module 6, so as to facilitate the molding operation of the EPS foam, and the electric push rod 9 is arranged to facilitate the up and down movement of the fixed plate 10.

[0023] refer to Figure 1 , Figure 2 and Figure 3 The top surfaces of the movable mold 5 and the module 6 are both provided with a plurality of circular connecting holes 11, and the top surface of the fixed plate 10 is provided with a plurality of vibrating rods 12 corresponding to the circular connecting holes 11, and one end of the vibrating rod 12 is inserted into the inside of the circular connecting hole 11, and the bottom surface of the module 6 is provided with a rectangular hole 13 connected to the circular connecting hole 11, and a rectangular sealing block 14 is arranged inside the rectangular hole 13, and the bottom end of the vibrating rod 12 is fixed to the top surface of the rectangular sealing block 14; the circular connecting hole 11 is provided, so that the vibrating rod 12 can be inserted into the inside, and the rectangular sealing block 14 is provided, so that the rectangular hole 13 can be sealed, so that the EPS raw material particles will not enter the inside of the rectangular hole 13, and the vibrating rod 12 vibrates as a whole, and the vibration therein can generate vibration force, which will be transmitted to the working part through the entire structure of the vibrating rod.

[0024] refer to Figure 1 , Figure 2 A groove 15 is provided on the bottom surface of the fixed mold 1, and an electric push rod 16 is fixedly installed on the inner top surface of the groove 15. A push plate 17 is provided on the inner bottom surface of the molding cavity 4. The telescopic end of the electric push rod 16 extends to the interior of the molding cavity 4 and is fixed to the bottom surface of the push plate 17. The electric push rod 16 and the push plate 17 are provided to facilitate the ejection of the EPS foam formed in the molding cavity 4, so as to facilitate the demolding of the EPS foam after forming.

[0025] refer to Figure 1 , Figure 2 A plurality of support rods 19 are fixedly installed on the side of the fixed mold 1, and a control panel 20 is fixedly installed on one end of the plurality of support rods 19 away from the fixed mold 1; through the set control panel 20, it is convenient to control the start and stop of the hydraulic cylinder 8, the electric push rod 1 9 and the electric push rod 2 16.

[0026] The implementation principle of the embodiment of the high-density EPS foam molding mold of the present application is as follows: under normal conditions, the vibrating rod 12 is located inside the circular connecting hole 11, and then the rectangular sealing block 14 blocks and seals the rectangular hole 13. When the personnel place the EPS foam raw material particles inside the molding cavity 4, the personnel start the hydraulic cylinder 8, and the hydraulic cylinder 8 drives the U-shaped plate 7, the movable mold 5 and the module 6 to move downward. When the movable mold 5 and the module 6 are close to the fixed mold 1, the personnel closes the hydraulic cylinder 8 and then starts the electric push rod 9, and the electric push rod 9 drives the fixed plate 10 to move downward, so that it is convenient for the vibrating rod 12 to drive the rectangular sealing block 14 to move downward, so that the vibrating rod 12 enters the EPS foam raw material particles inside the molding cavity 4, and then the personnel starts the vibrating rod 12. The vibrating rod 12 generates vibrations, so that the EPS foam raw material particles can collide and move with each other, which is conducive to the free flow and arrangement of the particles, reduces the gaps between the particles, and increases the filling density of the particles, thereby increasing the uniformity of the EPS particles and improving the quality of the EPS foam after molding. When the EPS foam raw material particles inside the molding cavity 4 are evenly distributed, the personnel starts the electric push rod 9 to drive the U-shaped plate 7 to reset, and then drives the module 6 into the molding cavity 4 through the hydraulic cylinder 8 to carry out the EPS foam molding operation.

[0027] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A high-density EPS foam molding mold, comprising a fixed mold (1), characterized in that: A plurality of supporting columns (2) are fixedly mounted near the corners of the fixed mold (1), and a top mounting plate (3) is fixedly mounted on the tops of the plurality of supporting columns (2). A molding cavity (4) is provided near the middle of the top surface of the fixed mold (1). A movable mold (5) is arranged on the bottom surface of the top mounting plate (3). A module (6) corresponding to the molding cavity (4) is fixedly mounted on the bottom surface of the movable mold (5). A U-shaped plate (7) is fixedly mounted on the top surface of the movable mold (5). A hydraulic cylinder (8) is fixedly mounted on the top surface of the top mounting plate (3). The telescopic end of the hydraulic cylinder (8) is fixed to the top surface of the U-shaped plate (7). An electric cylinder (8) is fixedly mounted on the inner top surface of the U-shaped plate (7). A movable push rod (9), the telescopic end of the electric push rod (9) is fixedly mounted with a fixing plate (10), the top surfaces of the movable mold (5) and the module (6) are both provided with a plurality of circular connection holes (11), the top surface of the fixing plate (10) is provided with a plurality of vibration rods (12) corresponding to the circular connection holes (11), one end of the vibration rod (12) is inserted into the inside of the circular connection hole (11), the bottom surface of the module (6) is provided with a rectangular hole (13) connected to the circular connection hole (11), a rectangular sealing block (14) is arranged inside the rectangular hole (13), and the bottom end of the vibration rod (12) is fixed to the top surface of the rectangular sealing block (14).

2. A high-density EPS foam molding mold as claimed in claim 1, characterized in that: The bottom surface of the fixed mold (1) is provided with a groove (15), the inner top surface of the groove (15) is fixedly mounted with an electric push rod (16), the inner bottom surface of the molding cavity (4) is provided with a push plate (17), the telescopic end of the electric push rod (16) extends into the interior of the molding cavity (4) and is fixed to the bottom surface of the push plate (17).

3. A high-density EPS foam molding mold as claimed in claim 1, characterized in that: A plurality of electric heating plates (18) are fixedly mounted on the inner side wall of the fixed mold (1).

4. A high-density EPS foam molding mold as claimed in claim 1, characterized in that: A plurality of support rods (19) are fixedly mounted on the side of the fixed mold (1), and a control panel (20) is fixedly mounted on one end of the plurality of support rods (19) away from the fixed mold (1).

5. A high-density EPS foam molding mold as claimed in claim 1, characterized in that: A plurality of circular through holes (21) corresponding to the supporting columns (2) are provided on the top surface of the movable mold (5) near the corners, and one end of the supporting column (2) passes through the inside of the circular through hole (21).

6. A high-density EPS foam molding mold as claimed in claim 1, characterized in that: A plurality of support blocks (22) are fixedly mounted around the bottom surface of the fixed mold (1).

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