Extrusion die for automobile sealing strip

Abstract

The utility model relates to an extrusion die of an automobile sealing strip and belongs to the technical field of production equipment of automobile inner notches. The extrusion die for the automobile sealing strip comprises a machine head body, a mouth die, a heating plate and a shaping die, one side of the machine head body is fixedly provided with a shaping mold through a screw rod; one end of the stock mold is fixedly provided with a mouth mold through a screw rod; a heating plate is arranged on the machine head body around the stock mould and the mouth mould; two groups of feeding straight holes and two groups of feeding bent holes are symmetrically formed in the machine head body; a plurality of assembling slide rails are arranged on the machine head body around the feeding straight hole and the feeding bent hole; and a heating plate is arranged on the machine head body through an assembling slide rail. The extrusion die for the automobile sealing strip is compact in structure, solves the problems of low working efficiency and high rejection rate of the existing automobile door sealing strip production mode, and is particularly suitable for production and use of the automobile sealing strip.

Description

Technical Field

[0001] The utility model relates to an extrusion die for automobile sealing strips, belonging to the technical field of production equipment for automobile inner incisions. Background Art

[0002] Automobile door sealing strips are an important automotive accessory, primarily used for sealing doors and providing shock absorption, waterproofing, sound insulation, heat insulation, dustproofing, and securing. They are typically injection-molded from materials with excellent elasticity and resistance to compression deformation. Extruders are currently commonly used to initially produce automobile sealing strips. Existing extruders, such as the one disclosed in the utility model patent with authorization publication number CN220198490U, employ a screw extruder to deliver the material fluid directly to the die to complete the initial production of the automobile sealing strips. While these existing solutions meet the production needs of enterprises to a certain extent, they present the following problems:

[0003] 1. The existing die can only produce a single workpiece, resulting in low work efficiency.

[0004] 2. In the process of the existing screw extruder body directly delivering the material fluid to the die to complete the initial production of the automotive sealing strip, due to the lack of a material gathering step, the existing production method is prone to uneven thickness and high scrap rate problems.

[0005] Therefore, it is necessary to develop a new extrusion die to solve the above problems existing in the existing automobile sealing strip production method. Summary of the Invention

[0006] The purpose of the utility model is to provide an extrusion die for automobile sealing strips with a compact structure and ingenious design to solve the problems of low working efficiency and high scrap rate in the existing production method of automobile door sealing strips.

[0007] The technical solution of the utility model is:

[0008] An extrusion die for an automobile sealing strip comprises a head body, a mouth die, a heating plate and a shaping die; it is characterized in that: a shaping die is fixedly mounted on one side of the head body through a screw; a mouth die is fixedly mounted on one end of the shaping die through a screw; a heating plate is mounted on the head body around the shaping die and the mouth die; two groups of straight feed holes and two groups of curved feed holes are symmetrically arranged on the head body; a plurality of assembly slides are arranged on the head body around the straight feed holes and the curved feed holes; a heating plate is mounted on the head body through the assembly slides; one end of the curved feed hole extends to the side of the head body, and a feed connector is mounted on the side of the head body at one end of the curved feed hole; the feed connector is connected to the corresponding curved feed hole; one end of the straight feed hole extends to the end of the head body, and a feed connector is mounted on the end of the head body at one end of the straight feed hole; the feed connector is connected to the corresponding straight feed hole.

[0009] The middle part of the shaping die is provided with four groups of shaping holes; the shaping holes are connected with the corresponding feed straight holes or feed curved holes; the shaping die is provided with connecting threaded holes around the shaping holes; an assembly hole A is provided on one side of the connecting threaded hole; the shaping die is fixed on the machine head body through the assembly hole A and the screw.

[0010] The shaping hole is a tapered hole.

[0011] The die is evenly provided with four groups of discharge die holes; the discharge die holes are connected with the corresponding shaping holes; multiple groups of assembly holes B are provided on the die around the discharge die holes; the die is fixed on the shaping die through the assembly holes B and the screw in cooperation with the connecting threaded holes.

[0012] A weight-reducing through hole is provided in the middle of the machine head body.

[0013] One end of the heating plate is provided with an insertion slot; the heating plate is movably mounted on the machine head body through the insertion slot and the assembly slide rail; the inner side of the heating plate is provided with a curved cooling groove; one end of the cooling groove is provided with an air inlet; the other end of the cooling groove is provided with an air outlet.

[0014] The advantages of the present invention are:

[0015] The extrusion die for the automotive sealing strip has a compact structure and ingenious design, and can simultaneously complete the production and processing of four groups of automotive sealing strips. It also adopts a technical solution of gathering the materials using a shaping die, thereby solving the problems of low work efficiency and high scrap rate in the existing production method of vehicle door sealing strips. The die is particularly suitable for the production of automotive sealing strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0018] Figure 3 It is a right side structural schematic diagram of the present utility model;

[0019] Figure 4 This is a schematic structural diagram of the head body of the utility model;

[0020] Figure 5 for Figure 3 Schematic diagram of the structure in the AA direction;

[0021] Figure 6 This is a schematic structural diagram of the die of the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the heating plate of the utility model;

[0023] Figure 8 for Figure 5 Schematic diagram of the enlarged structure at B in the middle;

[0024] Figure 9 This is a schematic diagram of the structure of the shaping mold of the utility model;

[0025] Figure 10 for Figure 2 Schematic diagram of the enlarged structure at point C in the middle.

[0026] In the figure: 1. Head body; 2. Forming die; 3. Mouth die; 4. Heating plate; 5. Feed straight hole; 6. Feed curved hole; 7. Assembly slide rail; 8. Feed joint; 9. Forming hole; 10. Connecting threaded hole; 11. Assembly hole A; 12. Discharge die hole; 13. Assembly hole B; 14. Weight-reducing through hole; 15. Insertion slot; 16. Cooling slot; 17. Air inlet; 18. Air outlet. DETAILED DESCRIPTION

[0027] The extrusion die of the automobile sealing strip comprises a die head 1, a die 3, a heating plate 4 and a shaping die 2 (see the attached manual). Figure 1 ).

[0028] There are two sets of feed straight holes 5 and two sets of feed curved holes 6 symmetrically arranged on the head body 1; a weight-reducing through hole 14 is arranged in the middle of the head body 1. There are multiple assembly slide rails 7 (see the appendix of the manual) arranged on the head body 1 around the feed straight holes 5 and the feed curved holes 6. Figure 4 ).

[0029] One end of the feed bend 6 extends to the side of the head body 1, and a feed connector 8 is installed on the side of the head body 1 at one end of the feed bend 6; the feed connector 8 is connected to the corresponding feed bend 6 (see the appendix of the manual). Figure 4 、 5One end of the feed hole 5 extends to the end of the head body 1, and the end of the head body 1 at one end of the feed hole 5 is equipped with a feed connector 8; the feed connector 8 is connected to the corresponding feed hole 5 (see the attached manual). Figure 2 、 4 and 10). The feed connector 8 is connected to the external screw extruder; when working, the screw extruder can extrude the material through the feed connector 8 and transport it to the corresponding feed straight hole 5 or feed curved hole 6.

[0030] One side of the head body 1 is fixed with a shaping die 2 by a screw (see the appendix of the specification). Figure 2 The middle part of the shaping die 2 is provided with four groups of shaping holes 9 in the form of conical holes (see the appendix of the specification). Figure 2 and 10 ); the shaping hole 9 is connected to the corresponding feed straight hole 5 or feed curved hole 6; connecting threaded holes 10 are provided on the shaping die 2 around the shaping hole 9; an assembly hole A11 is provided on one side of the connecting threaded hole 10; the shaping die 2 is fixedly mounted on the head body 1 through the assembly hole A11 and the screw.

[0031] The purpose of providing the sizing hole 9 is to enable the material to be further squeezed by the conical surface after the straight feed hole 5 or the curved feed hole 6 enters the sizing hole 9 during operation, thereby increasing the pressure and flow rate of the material, thereby ensuring that sufficient material is discharged through the discharge die hole 12 on the die 3. In this way, the problem of uneven thickness of the produced product caused by insufficient material can be avoided.

[0032] One end of the shaping die 2 is fixed with a die 3 by a screw (see the appendix of the specification). Figure 2 There are four groups of discharge holes 12 evenly arranged on the die 3 (see the attached manual). Figure 3 and 6 ); the discharge die hole 12 is connected to the corresponding shaping hole 9; a plurality of assembly holes B13 are provided on the die 3 around the discharge die hole 12; the die 3 is fixedly mounted on the shaping die 2 through the assembly holes B13 and the screw in cooperation with the threaded hole 10.

[0033] During operation, the strip formed after the material is discharged through the discharge die hole 12 on the die 3 is the automobile sealing strip. Subsequently, the strip can be formed into a finished product after solidification.

[0034] The head body 1 around the shaping die 2 and the mouth die 3 is equipped with a heating plate 4 (see the appendix of the specification) through the assembly slide 7. Figure 10). One end of the heating plate 4 is provided with an insertion slot 15; the heating plate 4 is movably mounted on the head body 1 through the insertion slot 15 and the assembly slide rail 7; the inner side of the heating plate 4 is provided with a curved cooling groove 16; one end of the cooling groove 16 is provided with an air inlet 17; the other end of the cooling groove 16 is provided with an air outlet 18. The purpose of arranging the heating plate 4 in this way is to enable the extrusion die to be heated by the heating plate 4 during operation so as to avoid the problem of cooling and solidification of the material. At the same time, compressed air can be added to the air inlet 17 to make the compressed air flow in the cooling groove 16, so that the heating plate 4 can be cooled, thereby controlling the temperature of the heating plate 4 to avoid the problem of overheating.

[0035] The extrusion die for the automobile sealing strip has a compact structure and an ingenious design, and can simultaneously complete the production and processing of four groups of automobile sealing strips. In addition, the die adopts a technical solution of gathering the materials by a shaping die 2, thereby solving the problems of low work efficiency and high scrap rate in the existing production method of door sealing strips. The die is particularly suitable for the production of automobile sealing strips.

Claims

1. An extrusion die for an automobile sealing strip, comprising a die head (1), a die (3), a heating plate (4) and a shaping die (2); characterized in that: A shaping die (2) is fixedly mounted on one side of the head body (1) via a screw; a mouth die (3) is fixedly mounted on one end of the shaping die (2) via a screw; a heating plate (4) is mounted on the head body (1) around the shaping die (2) and the mouth die (3); two groups of straight feed holes (5) and two groups of curved feed holes (6) are symmetrically arranged on the head body (1); a plurality of assembly slide rails (7) are arranged on the head body (1) around the straight feed holes (5) and the curved feed holes (6); The rail (7) is provided with a heating plate (4); one end of the feed curved hole (6) extends to the side of the machine head body (1), and a feed joint (8) is provided on the side of the machine head body (1) at one end of the feed curved hole (6); the feed joint (8) is communicated with the corresponding feed curved hole (6); one end of the feed straight hole (5) extends to the end of the machine head body (1), and a feed joint (8) is provided on the end of the machine head body (1) at one end of the feed straight hole (5); the feed joint (8) is communicated with the corresponding feed straight hole (5).

2. The extrusion die for an automobile sealing strip according to claim 1, characterized in that: The center of the shaping die (2) is provided with four groups of shaping holes (9); the shaping holes (9) are connected with the corresponding feed straight holes (5) or feed curved holes (6); connecting threaded holes (10) are provided on the shaping die (2) around the shaping holes (9); an assembly hole A (11) is provided on one side of the connecting threaded hole (10); the shaping die (2) is fixed on the machine head body (1) through the assembly hole A (11) and the screw.

3. The extrusion die for an automobile sealing strip according to claim 2, characterized in that: The shaping hole (9) is a tapered hole.

4. The extrusion die for an automobile sealing strip according to claim 2, characterized in that: The die (3) is evenly provided with four groups of discharge die holes (12); the discharge die holes (12) are connected to the corresponding shaping holes (9); a plurality of assembly holes B (13) are provided on the die (3) around the discharge die holes (12); the die (3) is fixed on the shaping die (2) through the assembly holes B (13) and the screw in cooperation with the connecting threaded hole (10).

5. The extrusion die for an automobile sealing strip according to claim 1, characterized in that: A weight-reducing through hole (14) is provided in the middle of the machine head body (1).

6. The extrusion die for an automobile sealing strip according to claim 1, characterized in that: One end of the heating plate (4) is provided with an insertion slot (15); the heating plate (4) is movably mounted on the machine head body (1) through the insertion slot (15) and the assembly slide rail (7); the inner side of the heating plate (4) is provided with a curved cooling groove (16); one end of the cooling groove (16) is provided with an air inlet (17); and the other end of the cooling groove (16) is provided with an air outlet (18).

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