Negative angle bending die

Abstract

The negative angle bending die comprises an upper die and a lower die, the upper die comprises an upper die base, two side pressing sliding blocks, a first pressing plate arranged on the lower end face of the upper die base and a movable connecting piece, the left side and the right side of the first pressing plate are provided with first inclined faces inclining inwards, and the side pressing sliding blocks are provided with second inclined faces sliding relative to the first inclined faces. The lower die comprises a lower die base, an elastic pressure-bearing base arranged on the lower die base and two side pressing assemblies arranged on the lower die base and located on the two sides of the elastic pressure-bearing base correspondingly, and each side pressing assembly comprises a base with a round-bottom groove, a rotating block rotationally arranged in the round-bottom groove and an elastic connecting piece connecting the rotating block and the base. A first face and a second face which form an included angle are arranged on the side, opposite to the elastic pressure-bearing base, of the rotating block, the elastic pressure-bearing base can press the first face downwards, and the second face is used for laterally pressing the product. The negative-angle bending device has the advantages that negative-angle bending of products can be effectively achieved, the whole structure is simple and compact, product bending efficiency is improved, and cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mould, concretely to a negative angle bending mould. BACKGROUND

[0002] The negative angle bending mould is the mould that product is bent, and the angle after bending is acute. The structure of the existing negative angle bending mould usually is the sliding block cooperation from the side to realize the bending of the bending part of the product. However, the mould is poor in linkage with the pressing mechanism when bending the product, needs the pressing mechanism to press down the product and then separately carries out the lateral bending, reduces the work efficiency, and makes the whole structure too complex, is not favorable to the cost saving.

[0003] In view of this, it is necessary to provide a negative angle bending mould. SUMMARY

[0004] The negative angle bending mould provided by the utility model effectively solves the problems of low bending efficiency and high cost of the existing mould.

[0005] The utility model adopts the technical scheme that:

[0006] A negative angle bending mould, including upper die and lower die, the upper die includes upper die seat, two side pressure sliding blocks, the one side pressure plate that sets up in the upper die seat lower end surface, two groups respectively connect one side pressure plate both sides with two side pressure sliding blocks's activity connecting piece, one side pressure plate left and right sides are provided with the inwardly inclined one side slope, side pressure sliding block is provided with the two side slope that slides with one side slope, the lower die includes lower die seat, the elastic pressure bearing seat that sets up on the lower die seat and two side pressure tight components that set up on the lower die seat and respectively located elastic pressure bearing seat both sides, side pressure tight component includes the base of round bottom groove, the rotating block that sets up in the round bottom groove rotation and the elastic connecting piece that connects rotating block with base, rotating block is provided with the one side face and the second face that present included angle to elastic pressure bearing seat one side, the elastic pressure bearing seat can press down one side face, the second face is used for carrying out side pressure to product.

[0007] Further, the elastic pressure bearing seat includes a pressure block and a plurality of one springs respectively abutting against the lower end of the pressure block and the lower die seat, the pressure block includes a first block and a second block provided on the upper end surface of the first block, the second block protrudes from both sides of the first block, and the lower end surface of the second block is abuttable against the first face.

[0008] Further, the elastic connecting piece includes a first connecting column fixedly arranged at the end of the rotating block, a second connecting column fixedly arranged at the end of the base, and a second spring connected at both ends of the first connecting column and the second connecting column, the mounting position of the first connecting column is higher than the mounting position of the second connecting column, and the rotating block rotates along the round bottom groove in the counterclockwise direction under the elastic force of the second spring.

[0009] Further, the side pressing assembly further comprises positioning columns arranged on the upper end surface of the base.

[0010] Further, the movable connecting piece comprises a first column fixedly connected with the end of the first pressing plate, a second column fixedly connected with the end of the side pressing slider, and a rotating plate rotationally connected with the first column and the second column at both ends.

[0011] The utility model has the advantages that the negative angle bending of the product can be effectively realized, the whole structure is simple and compact, the production and manufacturing cost is reduced, and the bending efficiency of the product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The overall schematic view of the negative angle bending die in the closed mold state is provided for the embodiment of the application.

[0013] Figure 2 The overall schematic view of the negative angle bending die in the open mold state is provided for the embodiment of the application.

[0014] Figure 3 The schematic view of the lower die of the negative angle bending die is provided for the embodiment of the application.

[0015] Marked as: 1, the upper die seat; 2, the side pressing slider; 3, the first pressing plate; 4, the movable connecting piece; 5, the lower die seat; 6, the elastic pressure bearing seat; 7, the side pressing assembly; 71, the base; 72, the rotating block; 73, the elastic connecting piece; 721, the first surface; 722, the second surface; 61, the first spring; 62, the first block; 63, the second block; 731, the first connecting column; 732, the second connecting column; 733, the second spring; 74, the positioning column; 41, the first column; 42, the second column; 43, the rotating plate; DETAILED DESCRIPTION

[0016] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, obvious and easy to understand, the specific embodiment of the utility model is described in detail below with reference to the drawings.

[0017] As Figure 1 And Figure 2As shown, a negative angle bending die provided by an embodiment of the present application includes an upper die and a lower die, the upper die includes an upper die base 1, two side pressure slides 2, a No. 1 pressure plate 3 provided on the lower end face of the upper die base 1, two groups of movable connecting parts 4 respectively connecting the two sides of the No. 1 pressure plate 3 and the two side pressure slides 2, the No. 1 pressure plate 3 is provided with an inwardly inclined No. 1 inclined surface on the left and right sides, the side pressure slide 2 is provided with a No. 2 inclined surface sliding with the No. 1 inclined surface, the lower die includes a lower die base 5, an elastic pressure seat 6 provided on the lower die base 5, and two side clamping components 7 provided on the lower die base 5 and located on both sides of the elastic pressure seat 6. As shown Figure 3 As shown, the side clamping assembly 7 includes a base 71 with a circular bottom groove, a rotating block 72 rotatably set in the circular bottom groove, and an elastic connecting member 73 connecting the rotating block 72 and the base 71. The rotating block 72 is provided with a No. 1 surface 721 and a No. 2 surface 722 at an angle to each other on the side relative to the elastic pressure-bearing seat 6. The elastic pressure-bearing seat 6 can press down the No. 1 surface 721, and the No. 2 surface 722 is used to perform side pressure on the product.

[0018] During actual use, the elastic pressure seat 6 is in a floating state, the upper mold and the lower mold are opened, and then the plate to be bent is placed on the elastic pressure seat 6, and then the upper mold is pressed down, so that the lower end faces of the two side pressure sliders 2 contact the upper end face of the product first, and the elastic pressure seat 6 is compressed and moved downward. As the upper mold continues to press down, the No. 1 pressure plate 3 pushes the side pressure sliders 2 to both sides. Finally, the No. 1 pressure plate 3 and the two side pressure sliders 2 all contact the upper end face of the product, and the No. 1 pressure plate 3 and the two side pressure sliders 2 are all in contact with the upper end face of the product, and the No. 1 surface 721 is pressed down during the downward movement of the elastic pressure seat 6, so that the rotating block 72 rotates clockwise around the round bottom groove toward the side of the elastic pressure seat 6, and the elastic connecting member 73 is stretched, so that the No. 2 surface 722 flips the part of the product protruding from the elastic pressure seat 6 and cooperates with the side pressure slider 2 to achieve bending forming.

[0019] The above design can effectively achieve negative angle bending of the product, and the entire structure is simple and compact, which improves the product bending efficiency while reducing the cost of production and manufacturing.

[0020] Specifically: Figure 3 As shown, the elastic pressure seat 6 includes a pressure block and several No. 1 springs 61 whose two ends respectively abut against the lower end of the pressure block and the lower mold base 5. The pressure block includes a No. 1 block 62 and a No. 2 block 63 arranged on the upper end surface of the No. 1 block 62. The two sides of the No. 2 block 63 protrude from the two sides of the No. 1 block 62, and the lower end surface of the No. 2 block 63 can abut against the No. 1 surface 721.

[0021] In actual use, the product is first placed on the upper end surface of the second block 63. As the upper mold continues to press down, the second block 63 presses down the first surface 721 to drive the rotating block 72 to rotate in the round bottom groove.

[0022] The elastic pressure bearing seat 6 is matched with the rotating block 72, and the bending of the product is realized quickly.

[0023] Specifically, as shown in Figure 3 The elastic connecting piece 73 comprises a first connecting column 731 fixedly arranged at the end of the rotating block 72, a second connecting column 732 fixedly arranged at the end of the base 71, and a second spring 733 connected with the first connecting column 731 and the second connecting column 732 at two ends, respectively. The mounting position of the first connecting column 731 is higher than that of the second connecting column 732. The rotating block 72 rotates in the counterclockwise direction along the circular bottom groove under the elastic force of the second spring 733.

[0024] In actual use, when the rotating block 72 rotates to bend the product, the first connecting column 731 rotates synchronously with the rotating block 72, and drives the second spring 733 to stretch.

[0025] In the above design, the structure design and specific implementation of the elastic connecting piece 73 can effectively realize the positioning of the rotating block 72.

[0026] Specifically, as shown in Figure 2 The side pressing assembly 7 further comprises a plurality of positioning columns 74 arranged on the upper end surface of the base 71.

[0027] In actual use, when the product is placed on the lower die, the product is positioned by the positioning column 74.

[0028] In the above design, the structure design and specific implementation of the positioning column 74 can effectively realize the quick positioning of the product, and ensure the bending precision of the product.

[0029] Specifically, as shown in Figure 2 The movable connecting piece 4 comprises a first column 41 fixedly connected with the end of the first pressing plate 3, a second column 42 fixedly connected with the end of the side pressing sliding block 2, and a rotating plate 43 rotationally connected with the first column 41 and the second column 42 at two ends.

[0030] In actual use, when the side pressing sliding block 2 slides relative to the first pressing plate 3 through the friction of the first inclined surface and the second inclined surface, the second column 42 moves synchronously with the side pressing sliding block 2, so that the rotating plate 43 rotates relative to the first column 41 and the second column 42.

[0031] In the above design, the structure design and specific implementation of the movable connecting piece 4 can effectively realize the connection of the side pressing sliding block 2 and the first pressing plate 3.

[0032] It should be understood that the above are only specific embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A negative angle bending die, comprising an upper die and a lower die, characterized in that: The upper die comprises an upper die base (1), two side pressure slide blocks (2), a No. 1 pressure plate (3) arranged on the lower end surface of the upper die base (1), and two groups of movable connecting members (4) respectively connecting the two sides of the No. 1 pressure plate (3) and the two side pressure slide blocks (2). The No. 1 pressure plate (3) is provided with an inwardly inclined No. 1 inclined surface on the left and right sides, and the side pressure slide block (2) is provided with a No. 2 inclined surface sliding with the No. 1 inclined surface. The lower die comprises a lower die base (5), an elastic pressure seat (6) arranged on the lower die base (5), and two sets of movable connecting members (4) respectively provided on the lower die base (5). A side pressing assembly (7) is located on both sides of the elastic pressure-bearing seat (6), wherein the side pressing assembly (7) comprises a base (71) with a circular bottom groove, a rotating block (72) rotatably arranged in the circular bottom groove, and an elastic connecting member (73) connecting the rotating block (72) and the base (71); the rotating block (72) is provided with a first surface (721) and a second surface (722) at an angle relative to the elastic pressure-bearing seat (6); the elastic pressure-bearing seat (6) can press down the first surface (721), and the second surface (722) is used to apply lateral pressure to the product.

2. The negative angle bending die according to claim 1, characterized in that: The elastic pressure-bearing seat (6) includes a pressure-bearing block and a number of No. 1 springs (61) whose two ends respectively abut against the lower end of the pressure-bearing block and the lower die seat (5). The pressure-bearing block includes a No. 1 block (62) and a No. 2 block (63) arranged on the upper end surface of the No. 1 block (62). Both sides of the No. 2 block (63) protrude from both sides of the No. 1 block (62), and the lower end surface of the No. 2 block (63) can abut against the No. 1 surface (721).

3. The negative angle bending die according to claim 1, characterized in that: The elastic connecting member (73) comprises a No. 1 connecting column (731) fixedly arranged at the end of the rotating block (72), a No. 2 connecting column (732) fixedly arranged at the end of the base (71), and a No. 2 spring (733) whose two ends are respectively connected to the No. 1 connecting column (731) and the No. 2 connecting column (732). The installation position of the No. 1 connecting column (731) is higher than the installation position of the No. 2 connecting column (732). Under the elastic force of the No. 2 spring (733), the rotating block (72) rotates in a counterclockwise direction along the round bottom groove.

4. The negative angle bending die according to claim 1, characterized in that: The side pressing assembly (7) further comprises a plurality of positioning columns (74) arranged on the upper end surface of the base (71).

5. The negative angle bending die according to claim 1, characterized in that: The movable connecting member (4) comprises a first column (41) fixedly connected to the end of the first pressure plate (3), a second column (42) fixedly connected to the end of the side pressure slider (2), and a rotating plate (43) with both ends rotatably connected to the first column (41) and the second column (42).

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