Automobile air duct plastic part buckle sideslip core-pulling injection mold

Abstract

The utility model provides an automobile air duct plastic part buckle sideslip core-pulling injection mold which comprises a top, an upper mold, a lower mold, an ejector plate and a bottom plate, the lower mold is provided with a sliding groove I, an inclined pulling block I is arranged in the sliding groove I in a sliding mode, the inclined pulling block I is used for forming an inverted buckle of a buckle I and the outer surface of a buckle II, and a base is further arranged at the side end of the lower mold. A driving oil cylinder is fixedly arranged on the base and drives a first inclined pulling block to move, a side core pulling block is further embedded in one side of the inclined pulling block, a first inclined guide hole is further formed in the first inclined pulling block, a first inclined guide rod fixed to the side core pulling block is arranged in the first inclined guide hole in a sliding mode, and a hinge piece is further arranged on the base. The hinging piece is used for limiting the position of the first inclined guide rod and driving the first inclined guide rod to conduct core pulling on the lateral reverse buckle, the outer surfaces of the first buckle and the second buckle are formed through the first inclined pulling block, the first guide hole is matched with the first guide rod, and therefore the first inclined pulling block drives the side core pulling block to complete core pulling of the lateral reverse buckle when sliding. Therefore, core pulling at two angles can be completed by one driving source.

Description

Technical Field

[0001] The utility model relates to a mould, in particular to a buckle side-sliding core-pulling injection mould for automobile air duct plastic parts. Background Art

[0002] like Figure 1 As shown, a plastic part of an automobile air duct includes an air duct body 90. The air duct body 90 is annular, and its interior is relatively smooth and serves as an appearance surface, and its exterior is a connecting surface. A buckle 1 91 is provided at the bottom of the air duct body 90, and a buckle 2 92 and a buckle 3 93 are provided on the front and rear sides of the air duct body 90 respectively. The buckle 1 91 and the buckle 3 93 both form vertical inverted buckles, and the buckle 2 92 forms a lateral inverted buckle. A flange 95 is provided at the rear end of the air duct body 90, and the buckle 3 93 is provided at the lower end of the flange 95. Buckles 4 94 are also provided on both side ends of the air duct body 90, and the buckle 4 94 is also a lateral inverted buckle.

[0003] When designing a general injection molded product, the undercut direction of one side basically needs to be designed to be in a consistent direction, so that it is convenient to design the core pulling structure when designing the mold. However, the undercut directions of the buckle 2 92 and the buckle 1 91 of the above-mentioned air duct body 90 are staggered, so it is more difficult to perform core pulling and interference is prone to occur. Utility Model Content

[0004] In view of this, the utility model aims to provide a snap-on side-sliding core-pulling injection mold for automobile air duct plastic parts, which has the function of pulling the core of undercuts at two angles.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a side sliding core-pulling injection mold for a plastic buckle of an automobile air duct, comprising a top, an upper mold, a lower mold, an ejection plate and a bottom plate, the lower mold is provided with a slide groove, an inclined pull-out block is slidably arranged in the slide groove, the inclined pull-out block is used for forming the undercut of the first buckle and the outer surface of the second buckle, the side end of the lower mold is also provided with a base, the base is fixedly provided with a driving cylinder, the driving cylinder drives the inclined pull-out block to move, a side core-pulling block is also embedded in one side of the inclined pull-out block, the inclined pull-out block is also provided with an inclined guide hole, an inclined guide rod fixed to the side core-pulling block is slidably arranged in the inclined guide hole, and a hinge is also provided on the base, the hinge is used to limit the position of the inclined guide rod and drive a pair of lateral undercuts of the inclined guide rod to perform core pulling.

[0006] Through the above-mentioned technical means, through the outer surfaces of the oblique pull-out block 1 forming the buckle 1 and the buckle 2, and the cooperation between the guide hole 1 and the guide rod 1, the oblique pull-out block 1 drives the side core pulling block to complete the lateral inverted core pulling when sliding, thereby realizing that one driving source completes the core pulling at two angles.

[0007] Preferably, the articulated member comprises an articulated seat and an articulated slide block, an articulated slide groove is provided in the articulated seat, the articulated slide groove is T-shaped, the articulated slide block is slidably connected to the articulated slide groove, and a tail portion of the inclined guide rod is articulated to the articulated slide block.

[0008] Through the above technical means, through the cooperation between the articulated slider and the articulated seat, the oblique pull-out block drives the side guide rod to move along the articulated slide slot when sliding, thereby realizing side core pulling.

[0009] Preferably, a positioning groove is further provided on the oblique drawer block, and a positioning guide column is fixedly provided on the bottom of the upper mold, and the positioning guide column is adapted to the positioning groove.

[0010] Through the above technical means, the mold closing accuracy of the side drawer block 1 is increased through the cooperation between the positioning groove and the positioning guide pin, thereby increasing the molding accuracy of the product.

[0011] Preferably, the lower die is further provided with a slide groove 2, in which an oblique pull-out block 2 is slidably arranged, and the oblique pull-out block 2 is used for forming flanges and buckles 3. The lower die is also provided with a driving source 1, and the driving source 1 drives the oblique pull-out block 2 to move along the direction of the slide groove 2.

[0012] Through the above technical means, the driving source 1 drives the oblique draw block 2 to move along the direction of the slide groove 2, thereby completing the forming of the formed flange and the buckle 3.

[0013] Preferably, a slide groove three is further provided on the lower mold, and the driving source one includes a power slider slidably set in the slide groove three and an inclined guide rod two fixedly set at the bottom of the upper mold, and an inclined guide hole two is provided on the power slider. When the mold is opened, the inclined guide rod two drives the power slider to move, and an oblique pull groove is also provided on the oblique pull block two, and the oblique pull groove is T-shaped. An oblique pull block is also provided on the power slider, and the oblique pull block is slidably set in the oblique pull groove.

[0014] Through the above technical means, through the cooperation between the inclined guide rod 2 and the inclined guide hole 2, the power slider can automatically slide outward when the mold is opened, and through the cooperation between the inclined pull-out block 3 and the power slider, the inclined pull-out block 2 is pulled away from the flanging to complete the core pulling.

[0015] Preferably, slide grooves four are symmetrically provided on the left and right sides of the lower mold, side forming blocks are slidably provided in the slide grooves four, and inclined guide rods three are fixedly provided on the bottom of the upper mold, and inclined guide holes three are provided on the side core pulling block. When the mold is opened, the inclined guide rods three drive the side forming blocks to move along the slide grooves four, and the forming blocks are used for forming buckles four.

[0016] Through the above technical means, through the cooperation between the oblique guide rod three and the oblique guide hole three, the buckle four is automatically formed when the upper mold and the lower mold are opened.

[0017] Preferably, a pair of travel switches are further provided on one side of the base, and a hitting plate is fixedly provided on a tail of the oblique draw block, and when the driving cylinder drives the base to move, the hitting plate touches the travel switch.

[0018] Through the above technical means, by setting a hitting plate at the tail of the oblique pull-out block 1 and setting a travel switch, it is confirmed whether the oblique pull-out block 1 slides to the set position, thereby preventing the driving cylinder from failing and causing the core to be pulled out of place. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the air duct body is shown in Figure 1. Figure 1 ;

[0020] Figure 2 The structure of the air duct body is shown in Figure 1. Figure 2 ;

[0021] Figure 3 It is a structural schematic diagram of an embodiment;

[0022] Figure 4 A partial schematic diagram of an embodiment Figure 1 ;

[0023] Figure 5 It is a structural schematic diagram of the lower mold;

[0024] Figure 6 A partial schematic diagram of an embodiment Figure 2 ;

[0025] Figure 7 A partial cross-sectional view of an embodiment;

[0026] Figure 8 It is a structural schematic diagram of the upper die;

[0027] Fig. 9 A partial schematic diagram of an embodiment Figure 3 .

[0028] Reference numerals: 1, top; 2, upper die; 3, lower die; 4, ejector plate; 5, bottom plate; 6, slide groove 1; 7, oblique draw block 1; 8, base; 9, driving cylinder; 10, side core pull block; 11, oblique guide hole 1; 12, oblique guide rod 1; 13, hinge seat; 14, hinged slider; 15, hinged slide groove; 16, positioning groove; 17, positioning guide column; 18, slide groove 2; 19, oblique draw block 2; 20, Driving source one; 21, slide slot three; 22, power slider; 23, oblique guide rod two; 24, oblique guide hole two; 25, oblique pull slot; 26, oblique pull block; 27, slide slot four; 28, side forming block; 29, oblique guide rod three; 30, oblique guide hole three; 31, travel switch; 32, hitting plate; 90, air duct body; 91, buckle one; 92, buckle two; 93, buckle three; 94, buckle four; 95, flanging. DETAILED DESCRIPTION

[0029] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0030] A side sliding core-pulling injection mold for a plastic part of an automobile air duct, comprising a top 1, an upper mold 2, a lower mold 3, an ejector plate 4 and a bottom plate 5, a slide groove 6 is provided on the lower mold 3, an oblique pull-out block 7 is slidably arranged in the slide groove 6, and the oblique pull-out block 7 is used to form the undercut of the buckle 91 and the outer surface of the buckle 2 92, a base 8 is also provided at the side end of the lower mold 3, a driving oil cylinder 9 is fixedly arranged on the base 8, the output end of the driving oil cylinder 9 is connected to the oblique pull-out block 7 and drives the oblique pull-out block 7 to move in the slide groove 6, a side core-pulling block 10 is also embedded in the inner side of the oblique pull-out block 7, an oblique guide hole 11 is also penetrated and opened on the oblique pull-out block 7, and a side core-pulling block 10 is slidably arranged in the oblique guide hole 11 0 is fixed with an inclined guide rod 12, and a hinged part for limiting the position of the inclined guide rod 12 and driving the inclined guide rod 12 to pull the core against the lateral undercut is also arranged on the base 8, the hinged part comprises an hinged seat 13 and an hinged slider 14, an hinged slide 15 is provided in the hinged seat 13, the hinged slide 15 is T-shaped, the hinged slider 14 is slidably linked with the hinged slide 15, the tail of the inclined guide rod 12 is hinged with the hinged slider 14, when the driving cylinder 9 drives the inclined withdrawal block 7 to slide, the inclined guide hole 11 drives the inclined guide rod 12 to deviate along the hinged slide 15, at this time the side core pulling block 10 gradually disengages from the lateral undercut, thereby realizing that one driving source completes the core pulling at two angles.

[0031] A positioning groove 16 is also provided on the oblique pull-out block 7, and a positioning guide column 17 is fixedly provided at the bottom of the upper mold 2. The positioning guide column 17 is adapted to the positioning groove 16. When the mold needs to be closed after the ejection is completed, the oblique pull-out block 7 is first pushed back to the initial position by driving the oil cylinder 9, and then the positioning guide column 17 is inserted into the positioning groove 16, so as to prevent the deviation of the reset position of the core pulling block 1 when the oil pressure is insufficient, and at the same time, prevent the oblique pull-out block 7 from retreating due to excessive pressure in the cavity during injection molding, thereby increasing the molding accuracy of the product.

[0032] The lower mold 3 is also provided with a second slide groove 18, in which a second oblique draw block 19 is slidably arranged, and the oblique draw block 19 is used to form the flange 95 and the buckle 3 93. The lower mold 3 is also provided with a driving source 20, and the driving source 20 drives the oblique draw block 19 to move along the direction of the second slide groove 18. The lower mold 3 is also provided with a third slide groove 21, and the driving source 1 20 includes a power slider 22 slidably arranged in the third slide groove 21 and an oblique guide rod 23 fixedly arranged at the bottom of the upper mold 2. The power slider 22 is provided with a An inclined guide hole 24 is provided, and an inclined pull block 19 is also provided with an inclined groove 25. The inclined groove 25 is vertically arranged at 90° with the slide groove 18, and the inclined groove 25 is T-shaped. An inclined pull block 26 is also provided on the power slider 22. The inclined pull block 26 is slidably arranged in the inclined groove 25. When the upper mold 2 is separated from the lower mold 3, the inclined guide rod 23 drives the power slider 22 to move outward. At this time, the inclined pull block 26 pulls the inclined pull block 19 to move along the direction of the slide groove 18 to complete the core pulling of the flange 95 and the buckle 3 93.

[0033] The left and right sides of the lower mold 3 are symmetrically provided with slide grooves 27, and side forming blocks 28 are slidably arranged in the slide grooves 27. An inclined guide rod 3 29 is also fixedly arranged at the bottom of the upper mold 2, and an inclined guide hole 3 30 is arranged on the side core pulling block 10. When the mold is opened, the inclined guide rod 3 29 drives the side forming block 28 to move along the slide groove 27. The forming block is used to form the buckle 4 94. When the upper mold 2 and the lower mold 3 are separated, the cooperation between the inclined guide rod 3 29 and the inclined guide hole 30 makes the buckle 4 94 automatically formed when the upper mold 2 and the lower mold 3 are opened. The side ends of the slide groove 1 6, the slide groove 2 18, the slide groove 3 21 and the slide groove 4 27 are all provided with pressing blocks to form a T-slot.

[0034] A pair of travel switches 31 are also provided on one side of the base 8, and a hitting plate 32 is fixedly provided at the tail of the oblique pulling block 7. When the driving cylinder 9 drives the base 8 to move, the hitting plate 32 touches the travel switch 31 and confirms whether the oblique pulling block 7 slides to the set position, thereby preventing the driving cylinder 9 from failing and causing the core to be not pulled into place.

[0035] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A snap-on side-sliding core-pulling injection mold for automobile air duct plastic parts, comprising a top (1), an upper mold (2), a lower mold (3), an ejector plate (4) and a bottom plate (5), wherein: The lower mold (3) is provided with a slide groove (6), and an inclined drawing block (7) is slidably arranged in the slide groove (6). The inclined drawing block (7) is used to form the undercut of the buckle (91) and the outer surface of the buckle (92). The side end of the lower mold (3) is also provided with a base (8), and a driving cylinder (9) is fixedly arranged on the base (8). The driving cylinder (9) drives the inclined drawing block (7) to move. A side core pulling block (10) is also embedded in the inner side of the inclined drawing block (7). The inclined drawing block (7) is also provided with an inclined guide hole (11), and an inclined guide rod (12) fixed to the side core pulling block (10) is slidably arranged in the inclined guide hole (11). The base (8) is also provided with a hinge, and the hinge is used to limit the position of the inclined guide rod (12) and drive the inclined guide rod (12) to pull the core of the side undercut.

2. The buckle side-sliding core-pulling injection mold for automobile air duct plastic parts according to claim 1 is characterized by: The articulated component comprises an articulated seat (13) and an articulated slide block (14); an articulated slide groove (15) is provided in the articulated seat (13); the articulated slide groove (15) is T-shaped; the articulated slide block (14) is slidably connected to the articulated slide groove (15); and the tail end of the inclined guide rod (12) is articulated to the articulated slide block (14).

3. The side-sliding core-pulling injection mold for automobile air duct plastic parts according to claim 1 is characterized by: The oblique drawer block (7) is also provided with a positioning groove (16), and a positioning guide column (17) is fixedly provided at the bottom of the upper mold (2), and the positioning guide column (17) is adapted to the positioning groove (16).

4. The side-sliding core-pulling injection mold for automobile air duct plastic parts according to claim 1 is characterized by: The lower mold (3) is also provided with a second slide groove (18), and a second oblique pull-out block (19) is slidably arranged in the second slide groove (18). The second oblique pull-out block (19) is used to form the flange (95) and the third buckle (93). The lower mold (3) is also provided with a driving source (20), and the driving source (20) drives the second oblique pull-out block (19) to move along the direction of the second slide groove (18).

5. The side-sliding core-pulling injection mold for automobile air duct plastic parts according to claim 4 is characterized by: The lower mold (3) is also provided with a slide groove three (21), the driving source one (20) comprises a power slider (22) slidably arranged in the slide groove three (21) and an inclined guide rod two (23) fixedly arranged at the bottom of the upper mold (2), the power slider (22) is provided with an inclined guide hole two (24), when the mold is opened, the inclined guide rod two (23) drives the power slider (22) to move, the inclined draw block two (19) is also provided with an inclined draw groove (25), the inclined draw groove (25) is T-shaped, and the power slider (22) is also provided with an inclined draw block (26), the inclined draw block (26) is slidably arranged in the inclined draw groove (25).

6. The buckle side-sliding core-pulling injection mold for automobile air duct plastic parts according to claim 1 is characterized by: The lower mold (3) is symmetrically provided with four slide grooves (27) on the left and right sides, and a side forming block (28) is slidably arranged in the four slide grooves (27). The bottom of the upper mold (2) is also fixedly provided with three inclined guide rods (29), and the side core pulling block (10) is provided with three inclined guide holes (30). When the mold is opened, the three inclined guide rods (29) drive the side forming block (28) to move along the four slide grooves (27), and the forming block is used for forming buckles four (94).

7. The buckle side-sliding core-pulling injection mold for automobile air duct plastic parts according to claim 1 is characterized by: A pair of travel switches (31) are also provided on one side of the base (8), and a hitting plate (32) is fixedly provided at the tail of the inclined draw block (7). When the driving cylinder (9) drives the base (8) to move, the hitting plate (32) touches the travel switch (31).

Images