Composite battery mold pressing mold with vacuumizing mechanism

Abstract

The utility model discloses a composite material battery mould pressing mould with a vacuumizing mechanism, which comprises an upper mould plate and a lower mould plate, the upper mould plate and the lower mould plate are closed to form a mould cavity, the lower end of the vacuumizing mechanism penetrates into the mould cavity from the upper part of the upper mould plate and enters the mould cavity, an air port is arranged on one side of the vacuumizing mechanism in the mould cavity, and the air port is communicated with the vacuumizing mechanism. The air port is communicated with an air hole formed in one side of the upper template; and a compression sealing strip is arranged at the closed part between the upper template and the lower template. The device is firm in structure and convenient to install, and the product quality is improved. And meanwhile, air suction is changed into air blowing during mold opening after the product is formed, so that the product is separated from the cavity, and a worker can conveniently take the product.

Description

Technical Field

[0001] The utility model relates to a composite battery compression mold with a vacuum pumping mechanism, belonging to the technical field of compression molds. Background Art

[0002] Compression molding is a process that combines compression molding with injection molding. Injection molding is a process used in the mass production of composite battery pack components. Specifically, melted epoxy resin is injected under high pressure from a gun into a mold cavity containing fiberglass fabric. After cooling and solidification, the resulting molded product is formed. Due to the thin wall thickness of the product, typically only 1-2 mm, strict sealing and strength requirements are required, requiring the product to be bubble-free. To reduce the impact of bubbles on the product's airtightness and strength, the air in the cavity must be removed to create a vacuum before injection molding the composite product. Utility Model Content

[0003] Purpose: In order to overcome the deficiencies in the prior art, the utility model provides a composite battery molding die with a vacuum pumping mechanism.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is:

[0005] A composite battery molding die with a vacuum mechanism comprises an upper mold plate and a lower mold plate. The upper and lower mold plates close together to form a mold cavity. The lower end of the vacuum mechanism penetrates from the upper portion of the upper mold plate and enters the mold cavity. An air port is provided on one side of the vacuum mechanism within the mold cavity, communicating with an air hole provided on one side of the upper mold plate. A compression seal is provided at the junction between the upper and lower mold plates to seal the mold cavity. When the core puller retracts, air is drawn from the gap between the core puller pins, through the air port on the core puller barrel, and then out of the air hole in the upper mold plate. This removes air from the mold cavity between the upper and lower mold plates, creating a vacuum. The core puller then returns to its original position, sealing the vacuum in the mold cavity and allowing injection molding to begin.

[0006] Furthermore, the upper template is provided with a mold hole for the lower part of the vacuum mechanism to pass through, and the vacuum mechanism includes a core pulling fixing seat, a core pulling cylinder and a core pulling rod. The core pulling fixing seat is connected to the core pulling cylinder, and the inner cavity of the core pulling fixing seat is communicated with the core pulling cylinder. The lower end of the core pulling rod enters the inner cavity of the core pulling fixing seat and extends into the core pulling cylinder; the upper end of the core pulling fixing seat is fixed to the inner wall of the upper template by a screw; an air port is provided on one side of the core pulling cylinder and is communicated with the air hole provided on one side of the upper template.

[0007] Furthermore, the vacuum mechanism also includes a cylinder fixing seat provided on the upper template, the upper end of the cylinder fixing seat is connected to the cylinder, the top end of the core pulling rod passes through the cavity of the cylinder fixing seat and is connected to the cylinder through a screw thread, and the core pulling rod floats up and down with the piston rod of the cylinder to open and close the connection between the mold cavity and the outside world.

[0008] Furthermore, a heat insulation plate is provided between the oil cylinder fixing seat and the upper template, and the oil cylinder fixing seat and the heat insulation plate are both fixed to the upper template by screws.

[0009] Furthermore, the oil cylinder is connected to the oil cylinder fixing seat by bolts.

[0010] Furthermore, a guide sleeve is provided at the connection between the inner cavity of the core-pulling fixing seat and the core-pulling cylinder, and a core-pulling rod passes through the guide sleeve, and the core-pulling rod is guided and positioned by the guide sleeve.

[0011] Furthermore, a plurality of first sealing rings are provided between the core-pulling fixing seat and the core-pulling rod; and a second sealing ring is provided between the core-pulling fixing seat and the mold hole of the upper template.

[0012] Furthermore, a third sealing ring is provided between the outer side of the lower portion of the core-pulling cylinder and the mold hole of the upper template.

[0013] Furthermore, a fourth sealing ring is provided between the core-pulling rod and the lower end of the core-pulling cylinder.

[0014] Furthermore, the lower end of the core-pulling rod is adapted to the lower end of the core-pulling cylinder; the diameter of the upper section of the core-pulling rod is thickened and fits with the guide sleeve.

[0015] Beneficial effects: By setting the core pulling rod, core pulling barrel, air holes, air ports, etc., the core pulling rod is pulled out, and the air is discharged from the gap between the core pulling rods, to the air ports on the core pulling barrel, and then from the air holes on the upper template, so that the air is drawn out from the mold cavity between the upper template and the lower template to form a vacuum-like state. The core pulling rod then returns to its original position to close and seal the vacuum state in the mold cavity, and the injection of glue to produce the product begins. When the injection molding of the product is completed, the core pulling rod is pulled out and opened, and the vacuum pumping mechanism can be changed from exhaust to blowing. Then the air is blown from the air holes in the upper template, from the air ports on the core pulling barrel to the gap between the core pulling barrel and the core pulling rod, that is, through the air ports opened by the retreat of the core pulling rod, into the space between the product and the mold cavity, forcing the product out of the mold cavity for easy removal. This vacuum pumping mechanism has a reliable structure, is easy to install, and improves product quality. At the same time, it has the function of changing from exhaust to blowing to facilitate product demolding and removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall cutaway schematic diagram of the present utility model;

[0017] Figure 2It is a schematic side view of the overall vacuum structure of the present invention;

[0018] Figure 3 This is an exploded schematic diagram of the vacuum pumping structure in the present invention;

[0019] Figure 4 This is a schematic diagram of the vacuum structure of the present invention in the withdrawn and opened state;

[0020] Figure 5 This is a schematic diagram of the return closed state of the vacuum pumping structure in the present invention.

[0021] 1 Upper template, 2 lower template, 3 sealing strip, 4 oil cylinder, 5 oil cylinder fixing seat, 6 heat insulation board, 7 core pulling fixing seat, 8 core pulling cylinder, 9 core pulling rod, 10 guide sleeve, 11 first sealing ring, 12 second sealing ring, 13 third sealing ring, 14 fourth sealing ring, 15 air hole, 16 air port. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention.

[0023] Example 1

[0024] like Figure 1 As shown, a composite battery molding die with a vacuum mechanism includes an upper template 1 and a lower template 2. The upper template 1 and the lower template 2 are closed to form a mold cavity. The lower end of the vacuum mechanism penetrates from the upper part of the upper template 1 and enters the mold cavity. An air port 16 is provided on one side of the vacuum mechanism located in the mold cavity. The air port 16 is communicated with the air hole 15 provided on one side of the upper template 1; a compression sealing strip 3 is provided at the closed part between the upper template 1 and the lower template 2. The compression sealing strip 3 seals the mold cavity. When vacuuming is required, air is extracted from the air port 16 provided on one side of the vacuum mechanism and then discharged from the air hole 15 of the upper template 1, so that the air is extracted from the mold cavity between the upper template 1 and the lower template 2 to form a vacuum state.

[0025] like Figure 2-Figure 3 As shown, the upper template 1 is provided with a mold hole for the lower part of the vacuum mechanism to pass through. The vacuum mechanism includes a core pulling fixing seat 7, a core pulling tube 8 and a core pulling rod 9. The core pulling fixing seat 7 is connected to the core pulling tube 8, and the inner cavity of the core pulling fixing seat 7 is communicated with the core pulling tube 8. The lower end of the core pulling rod 9 enters the inner cavity of the core pulling fixing seat 7 and extends into the core pulling tube 8; the upper end of the core pulling fixing seat 7 is fixed to the inner wall of the upper template 1 by screws; one side of the core pulling tube 8 is provided with an air port 16 that communicates with the air hole 15 provided on one side of the upper template 1.

[0026] like Figure 3As shown, a guide sleeve 10 is provided at the connection between the inner cavity of the core-pulling fixing seat 7 and the core-pulling cylinder 8. The core-pulling rod 9 passes through the guide sleeve 10, and the core-pulling rod 9 is guided and positioned by the guide sleeve 10.

[0027] Such as 1. Figure 3 As shown, multiple first sealing rings 11 are provided between the core-pulling holder 7 and the core-pulling rod 9; a second sealing ring 12 is provided between the core-pulling holder 7 and the mold hole of the upper mold plate 1. The two first sealing rings 11 provided in the center of the core-pulling holder 7 seal the air flow between the core-pulling holder 7 and the core-pulling rod 9. The second sealing ring 12 provided outside the core-pulling holder 7 seals the air flow between the core-pulling holder 7 and the mold hole of the upper mold plate 1.

[0028] like Figure 1 、 Figure 4 As shown, a third sealing ring 13 is provided between the outer side of the lower portion of the core-pulling cylinder 8 and the die hole of the upper template 1. The third sealing ring 13 on the outer side of the core-pulling cylinder 8 seals the air flow between the die hole of the upper template 1.

[0029] like Figure 1 、 Figure 4 As shown, a fourth sealing ring 14 is provided between the lower end of the core-pulling barrel 8 and the core-pulling rod 9. The fourth sealing ring 14 seals air flow between the core-pulling rod 9 and the lower end of the core-pulling barrel 8. The lower end of the core-pulling rod 9 is adapted to fit the lower end of the core-pulling barrel 8; a section of the lower end of the core-pulling rod 9 should be aligned and sealed with a section of the lower end of the core-pulling barrel 8. A gap should be left between the middle section of the core-pulling rod 9 and the core-pulling barrel 8 to allow air to pass through.

[0030] like Figure 3 As shown, a section of the upper portion of the core-pulling rod 9 has a thickened diameter and fits with the guide sleeve 10. A section of the upper portion of the core-pulling rod 9 has a thickened diameter and fits with the guide sleeve 10 and the core-pulling fixed seat 7 for positioning and sealing.

[0031] like Figure 4 and Figure 5 As shown, when vacuuming is required, the core puller 9 is withdrawn, and the air in the mold cavity is discharged from the gap between the core puller 8 and the core puller 9, to the air port 16 on the core puller 8, and then out of the air hole 15 of the upper mold plate 1. In other words, the air is drawn out of the mold cavity between the upper mold plate 1 and the lower mold plate 2, forming a quasi-vacuum state. The core puller 9 then returns to the bottom of the core puller 8, closing the vacuum state in the mold cavity, and the injection molding and product production begin.

[0032] When the product injection molding is completed, the vacuum mechanism can be changed from vacuuming to blowing, and the core pulling rod 9 is pulled upward. Then the air flows from the air hole 15 of the upper template 1 to the air port 16 on the core pulling cylinder 8, and then to the gap between the core pulling cylinder 8 and the core pulling rod 9, and enters between the product and the mold cavity. That is, the air is blown into the space between the product and the mold cavity through the air port 16 opened by the retreat of the core pulling rod 9, forcing the product to leave the mold cavity, making it easier to remove the product.

[0033] Example 2

[0034] This embodiment is different from embodiment 1 in that Figure 2 As shown, the vacuum mechanism also includes a cylinder mount 5 mounted on the upper mold plate 1. The upper end of the cylinder mount 5 is connected to the cylinder 4. The top end of a core puller 9 passes through the cavity of the cylinder mount 5 and is threadedly connected to the cylinder 4. The core puller 9 floats up and down with the piston rod of the cylinder 4, opening and closing the connection between the mold cavity and the outside world. A heat shield 6 is also installed between the cylinder mount 5 and the upper mold plate 1. Both the cylinder mount 5 and the heat shield 6 are screwed to the upper mold plate 1. The cylinder 4 is connected to the cylinder mount 5 by bolts.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A composite battery molding die with a vacuum mechanism, characterized in that: The mold cavity is formed by closing the upper mold plate (1) and the lower mold plate (2). The lower end of the vacuum pumping mechanism penetrates from the upper part of the upper mold plate (1) and enters the mold cavity. An air port (16) is provided on one side of the vacuum pumping mechanism in the mold cavity. The air port (16) communicates with an air hole (15) provided on one side of the upper mold plate (1).

2. The composite battery molding die with a vacuum mechanism according to claim 1, characterized in that: The upper template (1) is provided with a mold hole for the lower part of the vacuum pumping mechanism to penetrate, and the vacuum pumping mechanism includes a core pulling fixed seat (7), a core pulling barrel (8) and a core pulling rod (9), the core pulling fixed seat (7) is connected to the core pulling barrel (8), and the inner cavity of the core pulling fixed seat (7) is connected to the core pulling barrel (8), and the lower end of the core pulling rod (9) enters the inner cavity of the core pulling fixed seat (7) and extends into the core pulling barrel (8); the upper end of the core pulling fixed seat (7) is fixed to the inner wall of the upper template (1) by screws; one side of the core pulling barrel (8) is provided with an air port (16) that communicates with the air hole (15) provided on one side of the upper template (1).

3. The composite battery molding die with a vacuum mechanism according to claim 2, characterized in that: The vacuum pumping mechanism further comprises an oil cylinder fixing seat (5) provided on the upper template (1), the upper end of the oil cylinder fixing seat (5) being connected to the oil cylinder (4), and the top end of the core pulling rod (9) passing through the cavity of the oil cylinder fixing seat (5) and being connected to the oil cylinder (4) via a screw thread.

4. The composite battery molding die with a vacuum mechanism according to claim 3, characterized in that: The oil cylinder (4) is connected to the oil cylinder fixing seat (5) via bolts.

5. The composite battery molding die with a vacuum mechanism according to claim 3, characterized in that: A heat insulation plate (6) is further provided between the oil cylinder fixing seat (5) and the upper template (1), and both the oil cylinder fixing seat (5) and the heat insulation plate (6) are fixed to the upper template (1) by screws.

6. The composite battery molding die with a vacuum mechanism according to claim 2, characterized in that: A guide sleeve (10) is provided at the connection between the inner cavity of the core-pulling fixing seat (7) and the core-pulling cylinder (8), and the core-pulling rod (9) passes through the guide sleeve (10).

7. The composite battery molding die with a vacuum mechanism according to claim 2, characterized in that: A compression sealing strip (3) is provided at the closed portion between the upper template (1) and the lower template (2); a plurality of first sealing rings (11) are provided between the core-pulling fixing seat (7) and the core-pulling rod (9); and a second sealing ring (12) is provided between the core-pulling fixing seat (7) and the mold hole of the upper template (1).

8. The composite battery molding die with a vacuum mechanism according to claim 2, characterized in that: A third sealing ring (13) is provided between the outer side of the lower portion of the core-pulling cylinder (8) and the mold hole of the upper template (1).

9. The composite battery molding die with a vacuum mechanism according to claim 2, characterized in that: A fourth sealing ring (14) is provided between the core-pulling rod (9) and the lower end of the core-pulling cylinder (8).

10. The composite battery molding die with a vacuum mechanism according to claim 6, characterized in that: The lower end of the core-pulling rod (9) is adapted to the lower end of the core-pulling cylinder (8).

Images