Membrane blowing forming die

Abstract

The utility model discloses a membrane blowing forming die. The membrane blowing forming die comprises an upper die base, an upper die plate, a lower die plate, a lower die base and a splitter plate. The top face of the upper die plate is fixed to the bottom face of the upper die base, the bottom face of the upper die plate abuts against the top face of the lower die plate, the bottom face of the lower die plate is fixed to the top face of the lower die base, and the splitter plate is fixed to the bottom face of the upper cavity and located above the air inlet hole. The splitter plate is fixed on the bottom surface of the upper cavity and is positioned above the air inlet hole, and the gap for the airflow to pass through is formed between the splitter plate and the bottom surface of the upper cavity, so that the airflow from the outside uniformly flows out through the splitter plate, and the size of the splitter plate and the outflow angle of the airflow can be adjusted through the boss on the splitter plate; and the adjustment is very convenient, so that the diaphragm is ensured to be tightly attached to the mold cavity, and the product quality is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a injection mold, in particular to a diaphragm air blowing forming die. BACKGROUND

[0002] Plastic injection mold is the tool of producing plastic products, and is very widely used. The diaphragm needs to form the required product shape according to the shape of the cavity in the forming process. In the forming process of the traditional diaphragm forming die, the diaphragm cannot be closely attached to the die cavity in the diaphragm forming process due to the uneven distribution of airflow, so that the product cannot meet the requirements. UTILITY MODEL CONTENTS

[0003] The utility model discloses a diaphragm air blowing forming die which can make the diaphragm closely attached to the die cavity.

[0004] To achieve the above object, the technical solution of the utility model is as follows:

[0005] The utility model discloses a diaphragm air blowing forming die, including upper die seat, upper die plate, lower die plate, lower die seat, shunt plate.

[0006] The top surface of the upper die plate is fixed on the bottom surface of the upper die seat, the bottom surface of the upper die plate is in contact with the top surface of the lower die plate, and the bottom surface of the lower die plate is fixed on the top surface of the lower die seat.

[0007] An upper cavity is formed in the upper die plate, an air inlet is formed in the middle of the bottom surface of the upper cavity, the shunt plate is fixed on the bottom surface of the upper cavity and located above the air inlet, and a gap for airflow passing through is formed between the shunt plate and the bottom surface of the upper cavity. The lower die plate is provided with a lower cavity, and the lower cavity is opposite to the upper cavity of the upper die plate to form a complete forming cavity. The middle of the upper die seat is provided with an air inlet, and the air inlet is communicated with the air inlet of the upper die plate.

[0008] The shunt plate is a rectangular plate, and the four corners of the rectangular plate are provided with bosses. The four bosses are fixed on the bottom surface of the upper cavity of the upper die plate by screws, and the gap between the rectangular plate and the bottom surface of the upper cavity forms an airflow channel.

[0009] The shunt plate is a polygonal plate, and the corners of the polygonal plate are provided with bosses.

[0010] The outer wall end surface of the upper cavity of the upper die plate is provided with a groove around the whole circumference, and the outer wall end surface of the lower cavity of the lower die plate is provided with a convex strip around the whole circumference. The convex strip is sleeved in the groove around the whole circumference of the upper die plate to form airtight cooperation.

[0011] With the above scheme, since the utility model discloses upper die holder, upper die plate, lower die plate, lower die holder, shunt plate, shunt plate is fixed on the upper cavity bottom surface and is located above the air inlet, the gap for letting airflow pass through between shunt plate and upper cavity bottom surface, the airflow from outside is evenly flowed outward through shunt plate, the size and airflow flowing angle of shunt plate can be adjusted through the boss on shunt plate, and it is very convenient to adjust, thereby guaranteeing that the diaphragm is tightly attached on the mold cavity, and product quality is high. In addition, the convex strip around the whole circumference on the lower die plate is sleeved in the groove around the whole circumference on the upper die plate, forms airtight cooperation, and the airtight effect is good.

[0012] The utility model will be further explained in connection with the drawings and specific embodiments. DRAWINGS

[0013] Figure 1 It is the isometric view of the utility model;

[0014] Figure 2 It is the isometric view of the lower die plate of the utility model;

[0015] Figure 3 It is the isometric view of the upper die plate of the utility model;

[0016] Figure 4 It is the isometric view of the shunt plate of the utility model;

[0017] Figure 5 It is the sectional view of the utility model. CONCRETE IMPLEMENTING METHOD

[0018] As Figures 1-5 The utility model discloses a diaphragm air forming die, including upper die holder 1, upper die plate 2, lower die plate 3, lower die holder 4, shunt plate 5.

[0019] The top surface of the upper die plate 2 is fixed on the bottom surface of the upper die holder 1, and the bottom surface of the upper die plate 1 is abutted with the top surface of the lower die plate 3, and the bottom surface of the lower die plate 3 is fixed on the top surface of the lower die holder 4.

[0020] The upper die plate 2 is provided with an upper cavity 21, and an air inlet is formed in the middle of the bottom surface of the upper cavity 21 (not shown in the figure), and the shunt plate 5 is fixed on the bottom surface of the upper cavity 21 and located above the air inlet, and there is a gap for letting airflow pass through between the shunt plate and the bottom surface of the upper cavity 21; the lower die plate 3 is provided with a lower cavity 31, and the lower cavity 31 is opposite to the upper cavity 21 of the upper die plate 2, forming a complete forming cavity; the upper die holder 1 is provided with an air inlet 11 in the middle, which is communicated with the air inlet of the upper die plate 2.

[0021] The outer wall end face of the upper cavity 21 of the upper template 2 is provided with a groove 22 that surrounds the entire circumference, and the outer wall end face of the lower cavity 31 of the lower template 3 is provided with a protrusion 32 that surrounds the entire circumference. The protrusion 32 is fitted into the groove 22 that surrounds the entire circumference on the upper template 2 to form a tight fit.

[0022] like Figure 4 As shown, the diversion plate 5 is a rectangular plate. The four corners of the rectangular plate 51 are provided with protrusions 52. The four protrusions 52 are fixed to the bottom surface of the upper cavity 21 of the upper template 2 by screws. The gap between the rectangular plate 51 and the bottom surface of the upper cavity 21 forms an airflow channel.

[0023] It should be noted that the diversion plate 5 can be a polygonal plate, and each corner of the polygonal plate is provided with a protrusion.

[0024] The working principle of this utility model:

[0025] like Figure 3 , Figure 4 As shown, the manifold 5 is fixed on the bottom surface of the upper cavity 21 and located above the air inlet. There is a gap between the manifold 5 and the bottom surface of the upper cavity 21 for airflow to pass through. The airflow from the outside flows out evenly through the manifold 5. The size of the manifold 5 and the airflow angle can be adjusted by the boss on the manifold 5.

[0026] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present utility model should still fall within the scope of the patent of the present utility model.

Claims

1. A diaphragm blowing molding die, characterized in that: Includes upper mold base, upper template, lower template, lower mold base, and flow divider plate; The top surface of the upper template is fixed to the bottom surface of the upper mold base, the bottom surface of the upper template is in contact with the top surface of the lower template, and the bottom surface of the lower template is fixed to the top surface of the lower mold base. The upper mold plate has an upper cavity, and an air inlet is provided in the middle of the bottom surface of the upper cavity. A flow divider is fixed on the bottom surface of the upper cavity and located above the air inlet. There is a gap between the flow divider and the bottom surface of the upper cavity to allow airflow. The lower mold plate has a lower cavity, which is opposite to the upper cavity of the upper mold plate to form a complete molding cavity. An air inlet is provided in the middle of the upper mold base, and the air inlet is connected to the air inlet of the upper mold plate.

2. The diaphragm blowing molding die according to claim 1, characterized in that: The diverter plate is a rectangular plate with protrusions at its four corners. The four protrusions are fixed to the bottom surface of the upper cavity of the upper template by screws. The gap between the rectangular plate and the bottom surface of the upper cavity forms an airflow channel.

3. The diaphragm blowing molding die according to claim 1, characterized in that: The diverter plate is a polygonal plate, and each corner of the polygonal plate has a protrusion.

4. The diaphragm blowing molding die according to claim 1, characterized in that: The upper mold cavity of the upper template has a groove that surrounds the entire circumference on its outer wall end face, and the lower mold cavity of the lower template has a protrusion that surrounds the entire circumference on its outer wall end face. The protrusion is fitted into the groove that surrounds the entire circumference on the upper mold to form a tight fit.

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