One-time press-bending forming mechanism

Abstract

The utility model discloses a one -time press bending forming mechanism, including lower die seat, movable die and upper die mechanism, the middle part of lower die seat is provided with mould cavity, and the upper surface of lower die seat is provided with shaping mouth, and shaping mouth is located mould cavity top, movable die includes horizontal mould section and vertical mould section, and horizontal mould section and vertical mould section fixedly connect to make movable die show L type, and movable die is provided with two, and two movable dies are symmetrically built -in in mould cavity, and on the opposite side of movable die, horizontal mould section is provided with first shaping groove, and vertical mould section is provided with second shaping groove, and horizontal mould section and vertical mould section junction and lower die seat rotatingly connect to make movable die can pivot in mould cavity, and upper die mechanism can be set in the upper of lower die seat. Upper die mechanism is fed along vertical direction, and cooperates two opposite movable dies, and can realize two -time bending one -time, reduces the size instability caused by the multiple press bending of wear -resisting tile board, guarantees product quality.

Description

Technical Field

[0001] This utility model relates to the field of bending and forming technology, and in particular to a one-time bending and forming mechanism. Background Technology

[0002] SFWPM's boiler economizers, reheaters, superheaters, and other components involve bending U-shaped stainless steel and carbon steel plates. Currently, the binding straps for these U-shaped wear-resistant plates require first bending them with a semi-circular bending die, followed by manual bending of the round bar to achieve the desired shape. This current bending process is inefficient, requires multiple bending operations leading to inconsistent bending quality, and poses a risk of hand injuries. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a one-time bending forming mechanism that can achieve two bending operations in one step.

[0004] According to a first aspect embodiment of the present invention, a one-time bending forming mechanism includes a lower die base, a movable die, and an upper die mechanism. A die cavity is provided in the middle of the lower die base, and a forming opening is provided on the upper surface of the lower die base, the forming opening being located above the die cavity. The movable die includes a horizontal die segment and a vertical die segment, the horizontal die segment and the vertical die segment being fixedly connected to make the movable die L-shaped. Two movable dies are provided, symmetrically housed within the die cavity. On opposite sides of the movable dies, the horizontal die segment is provided with a first forming groove, and the vertical die segment is provided with a second forming groove. The connection between the horizontal die segment and the vertical die segment is rotatably connected to the lower die base, allowing the movable die to pivot within the die cavity. The upper die mechanism is vertically and vertically disposed above the lower die base, and the upper die mechanism can be pressed down and extends through the forming opening into the space between the two movable dies.

[0005] The one-time bending forming mechanism according to the embodiment of this utility model has at least the following beneficial effects: the upper mold mechanism feeds in the vertical direction, and with the cooperation of two oppositely arranged movable molds, it can realize two-time bending at one time, reduce the dimensional instability caused by multiple bending of the wear-resistant tile, and ensure product quality.

[0006] According to some embodiments of the present invention, a reset mechanism is provided between the movable mold and the lower mold base. The reset mechanism is used to drive the movable mold to swing so that the vertical mold segment is close to the side wall of the mold cavity and the horizontal mold segment is away from the bottom surface of the mold cavity.

[0007] According to some embodiments of this utility model, limiting holes are provided through both sides of the lower mold base. The reset mechanism includes a screw and a spring. The end of the screw passes through the limiting hole and is fixedly connected to the vertical mold section. One end of the spring is fixedly connected to the outer wall of the lower mold base, and the other end is fixedly connected to the nut of the screw. The spring is sleeved on the screw. The diameter of the limiting hole is larger than the diameter of the screw so that the screw can move in the limiting hole.

[0008] According to some embodiments of the present invention, the transverse mold segment and the vertical mold segment are integrally formed, wherein the first shaping groove and the second shaping groove are smoothly transitioned on the vertical cross section of the movable mold, so that the first shaping groove and the second shaping groove form a continuous curved surface.

[0009] According to some embodiments of the present invention, the upper mold mechanism has a shaping surface at one end facing the lower mold base.

[0010] According to some embodiments of the present invention, the upper mold mechanism includes a lifting mechanism, an upper mold base, and a lower pressing mold. One end of the upper mold base is fixedly connected to the lifting mechanism, and the other end is fixedly connected to the lower pressing mold. The lifting mechanism is used to drive the upper mold base to move up and down. The end face of the lower pressing mold is provided with the shaping surface.

[0011] According to some embodiments of the present invention, the lower die is fixedly connected to the end of the upper die base by screws.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0014] Figure 1 This is a schematic diagram of a single-stage bending forming mechanism in one working state according to an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of another working state of the bending forming mechanism according to an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram showing another working state of the bending forming mechanism according to an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the lower die base of the one-time bending forming mechanism according to an embodiment of the present utility model.

[0018] 100. Lower mold base; 110. Shaping opening; 120. Mold cavity;

[0019] 200. Movable mold; 210. Horizontal mold section; 211. First forming groove; 220. Vertical mold section; 221. Second forming groove; 230. Reset mechanism; 231. Screw; 232. Spring; 240. Limiting hole;

[0020] 300. Upper mold mechanism; 310. Lower die; 311. Shaping surface; 320. Lifting mechanism; 330. Upper mold base; Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Reference Figures 1 to 4The one-time bending forming mechanism of this utility model includes a lower die base 100, a movable die 200, and an upper die mechanism 300. A die cavity 120 is provided in the middle of the lower die base 100, and a forming opening 110 is provided on the upper surface of the lower die base 100, located above the die cavity 120. The movable die 200 includes a horizontal die section 210 and a vertical die section 220, which are fixedly connected to make the movable die 200 L-shaped. Two movable dies 200 are provided, and the two movable dies 200 are symmetrically arranged within the die cavity. Placed in the mold cavity 120, on the opposite side of the movable mold 200, the transverse mold section 210 is provided with a first shaping groove 211, and the vertical mold section 220 is provided with a second shaping groove 221. The connection between the transverse mold section 210 and the vertical mold section 220 is rotatably connected to the lower mold base 100 so that the movable mold 200 can pivot in the mold cavity 120. The upper mold mechanism 300 is vertically and vertically disposed above the lower mold base 100. The upper mold mechanism 300 can be pressed down and extends through the shaping opening 110 into the space between the two movable molds 200.

[0026] In practical use, refer to Figure 1 The upper mold mechanism 300, carrying the wear-resistant tile plate, begins its vertical downward feed from its initial position, passing through the forming opening 110 and gradually extending between two symmetrically arranged movable molds 200. As the upper mold mechanism 300 presses down, it applies downward pressure to the transverse mold sections 210 of the two movable molds 200. Since the movable molds 200 are rotatably connected to the lower mold base 100 at the connection point between the transverse mold section 210 and the vertical mold section 220, under pressure, the movable molds 200 pivot around the connection point, causing a change in the positions of the transverse mold section 210 and the vertical mold section 220. The first forming groove 211 and the second forming groove 221 of the two movable molds 200 form a specific forming space. Under the combined action of the continuous downward pressure of the upper mold mechanism 300 and the pivoting of the movable molds 200, the wear-resistant tile plate to be processed is bent sequentially, as shown in the figure. Figure 2 The wear-resistant tile sheet is first bent at the first forming groove 211 of the transverse mold section 210, and then referred to Figure 3 The wear-resistant tile then undergoes a second bending at the second forming groove 221 of the vertical mold section 220, thereby achieving one-time bending forming.

[0027] By combining the downward pressing of the upper mold mechanism 300 with the pivoting of the movable mold 200, a second bending operation can be completed in one bending process. This avoids the problem of dimensional instability caused by multiple positioning and multiple stresses when bending the wear-resistant tile sheet multiple times in the traditional process, effectively ensuring the dimensional accuracy and quality of the product, while reducing processing steps and improving production efficiency.

[0028] In some embodiments, refer to Figure 1 and Figure 4 A reset mechanism 230 is provided between the movable mold 200 and the lower mold base 100. The reset mechanism 230 is used to drive the movable mold 200 to swing, so that the vertical mold section 220 moves closer to the side wall of the mold cavity 120 and the horizontal mold section 210 moves away from the bottom surface of the mold cavity 120. The reset mechanism 230 can automatically drive the movable mold 200 to swing and reset after bending forming, so that the vertical mold section 220 and the horizontal mold section 210 return to their initial positions, eliminating the need for manual adjustment of the position of the movable mold 200 and improving the automation level and production efficiency of the production process.

[0029] As a further optimization of the above embodiment, limiting holes 240 are provided through both sides of the lower mold base 100. The reset mechanism 230 includes a screw 231 and a spring 232. The end of the screw 231 passes through the limiting hole 240 and is fixedly connected to the vertical mold section 220. One end of the spring 232 is fixedly connected to the outer wall of the lower mold base 100, and the other end is fixedly connected to the nut of the screw 231. The spring 232 is sleeved on the screw 231. The diameter of the limiting hole 240 is larger than the diameter of the screw 231, so that the screw 231 can move in the limiting hole 240. When the bending forming is completed and the upper mold mechanism 300 rises and resets, the movable mold 200 loses the pressure of the upper mold mechanism 300. At this time, the spring 232 in the reset mechanism 230, having previously been compressed and stored elastic potential energy, begins to release energy, pulling the screw 231 towards the outer wall of the lower mold base 100. Since screw 231 is fixedly connected to vertical mold section 220, during the movement of screw 231, it drives vertical mold section 220 to move closer to the side wall of mold cavity 120. At the same time, movable mold 200 swings around the rotating connection with lower mold base 100, causing transverse mold section 210 to move away from the bottom surface of mold cavity 120, completing the reset action of movable mold 200 and preparing for the next bending forming.

[0030] In some embodiments, the transverse mold segment 210 and the vertical mold segment 220 are integrally formed, wherein the first forming groove 211 and the second forming groove 221 smoothly transition on the vertical cross-section of the movable mold 200, so that the first forming groove 211 and the second forming groove 221 form a continuous curved surface. When processing the movable mold 200, an integral forming process is used to manufacture the transverse mold segment 210 and the vertical mold segment 220 as a whole, so that there are no seams between them. When bending the workpiece, the workpiece is placed in the first forming groove 211 and the second forming groove 221 of the movable mold 200. As the movable mold 200 pivots and the upper mold mechanism 300 presses down, the workpiece is subjected to continuous pressure within the continuous curved groove, gradually undergoing plastic deformation along the smoothly transitioned curved surface, completing the bending process from transverse to vertical, and forming the desired curved shape. Specifically, the integrally formed movable mold 200 has high structural strength and no weak points at the joints, thus improving the service life of the movable mold 200. The smooth transition and continuous curved surface of the first forming groove 211 and the second forming groove 221 ensure that the workpiece is subjected to uniform force during bending, avoiding problems such as scratches and wrinkles on the workpiece surface caused by discontinuity of the groove, and ensuring the surface quality and shape accuracy of the workpiece at the bending point.

[0031] In some embodiments, the upper mold mechanism 300 includes a lifting mechanism 320, an upper mold base 330, and a lower pressing mold 310. One end of the upper mold base 330 is fixedly connected to the lifting mechanism 320, and the other end is fixedly connected to the lower pressing mold 310. The lifting mechanism 320 drives the upper mold base 330 to move up and down. The end face of the lower pressing mold 310 is provided with a shaping surface 311. After the lifting mechanism 320 is activated, it drives the upper mold base 330 to move up and down in the vertical direction. When bending is required, the lifting mechanism 320 drives the upper mold base 330 to move downward, and the lower pressing mold 310, which is fixedly connected to the upper mold base 330, moves downward accordingly. The shaping surface 311 on the end face of the lower pressing mold 310 gradually approaches the movable mold 200 and the workpiece on the lower mold base 100. When the shaping surface 311 contacts the workpiece, it continues to press down, applying pressure to the workpiece through the shaping surface 311, and cooperating with the movable mold 200 to complete the bending process. After the bending is completed, the lifting mechanism 320 drives the upper mold base 330 to rise, which in turn drives the lower pressing mold 310 to reset and return to the initial position.

[0032] It should be mentioned that the upper mold mechanism 300 has a shaping surface 311 at one end facing the lower mold base 100. In actual operation, the upper mold mechanism 300 moves downward under the drive of the lifting mechanism 320. When it reaches the predetermined position, its shaping surface 311 at one end facing the lower mold base 100 contacts the workpiece. As the upper mold mechanism 300 continues to press down, the shaping surface 311 evenly transmits pressure to the workpiece, and cooperates sequentially with the first shaping groove 211 and the second shaping groove 221 of the movable mold 200 to compress and shape the workpiece, so that the workpiece undergoes plastic deformation according to the shape of the shaping surface 311 and the shaping groove, thus completing the bending forming process.

[0033] Preferably, the lower die 310 is fixedly connected to the end of the upper die base 330 by screws 231. The screws 231 secure the lower die 310 to the upper die base 330, ensuring a firm and reliable connection. This connection can withstand the significant pressure generated during the bending process, preventing the lower die 310 from loosening or shifting during operation, thus ensuring the accuracy and stability of the bending process.

[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A one-time bending forming mechanism, characterized in that, include: The lower mold base (100) has a mold cavity (120) in the middle. The upper surface of the lower mold base (100) is provided with a shaping opening (110), which is located above the mold cavity (120). The movable mold (200) includes a horizontal mold section (210) and a vertical mold section (220). The horizontal mold section (210) and the vertical mold section (220) are fixedly connected to make the movable mold (200) L-shaped. There are two movable molds (200), which are symmetrically built into the mold cavity (120). On the opposite side of the movable mold (200), the horizontal mold section (210) is provided with a first shaping groove (211), and the vertical mold section (220) is provided with a second shaping groove (221). The connection between the horizontal mold section (210) and the vertical mold section (220) is rotatably connected to the lower mold base (100) so that the movable mold (200) can pivot in the mold cavity (120). The upper mold mechanism (300) is vertically and vertically disposed above the lower mold base (100). The upper mold mechanism (300) can be pressed down and extends through the shaping port (110) into the space between the two movable molds (200).

2. The one-time bending forming mechanism according to claim 1, characterized in that, A reset mechanism (230) is provided between the movable mold (200) and the lower mold base (100). The reset mechanism (230) is used to drive the movable mold (200) to swing so that the vertical mold section (220) is close to the side wall of the mold cavity (120) and the horizontal mold section (210) is away from the bottom surface of the mold cavity (120).

3. The one-time bending forming mechanism according to claim 2, characterized in that, Limiting holes (240) are provided through both sides of the lower mold base (100). The reset mechanism (230) includes a screw (231) and a spring (232). The end of the screw (231) passes through the limiting hole (240) and is fixedly connected to the vertical mold section (220). One end of the spring (232) is fixedly connected to the outer wall of the lower mold base (100), and the other end is fixedly connected to the nut of the screw (231). The spring (232) is sleeved on the screw (231). The diameter of the limiting hole (240) is larger than the diameter of the screw (231) so that the screw (231) can move in the limiting hole (240).

4. The one-time bending forming mechanism according to claim 1, characterized in that, The transverse module segment (210) and the vertical module segment (220) are integrally formed, wherein the first shaping groove (211) and the second shaping groove (221) are smoothly transitioned on the vertical section of the movable mold (200) so that the first shaping groove (211) and the second shaping groove (221) form a continuous curved surface.

5. The one-time bending forming mechanism according to claim 1, characterized in that, The upper mold mechanism (300) has a shaping surface (311) at one end facing the lower mold base (100).

6. The one-time bending forming mechanism according to claim 5, characterized in that, The upper mold mechanism (300) includes a lifting mechanism (320), an upper mold base (330), and a lower mold (310). One end of the upper mold base (330) is fixedly connected to the lifting mechanism (320), and the other end is fixedly connected to the lower mold (310). The lifting mechanism (320) is used to drive the upper mold base (330) to move up and down. The end face of the lower mold (310) is provided with the shaping surface (311).

7. The one-time bending forming mechanism according to claim 6, characterized in that, The lower die (310) is fixedly connected to the end of the upper die base (330) by screws (231).

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