A down-pressing shaping device

Abstract

The present invention discloses a downward pressing and shaping device, comprising: a frame, on which a loading table is provided; a fixing mechanism, which is arranged on the frame or the loading table and is used for positioning and fixing the end part of a curled workpiece on the frame or the loading table; a sliding carriage, which is slidably arranged on the frame along a direction parallel to the loading table; a pressing assembly, which is movably arranged on the sliding carriage and can press the curled workpiece onto the loading table; and a linear driving mechanism, which is connected to the sliding carriage and is used for driving the sliding carriage to reciprocate, so that the pressing assembly flattens the workpiece on the loading table. By fixing the end part of the workpiece on the frame or the loading table through the fixing mechanism, pressing one end of the workpiece close to the fixing mechanism onto the loading table by means of the pressing assembly, and driving the pressing assembly to reciprocate along a direction parallel to the loading table by the linear driving mechanism, the curled workpiece is gradually flattened against the loading table, thereby shaping the workpiece into a flattened state with a high flatness and not easily damaging the workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of workpiece shaping, and particularly to a downward pressing and shaping device. Background Art

[0002] In the related art, as shown in Figure 4 , due to the limitation of the diameter of the output channel of the extruder 20, when the size of a certain direction of the cross-section of the workpiece 10 to be extruded is larger than the diameter of the output channel, the workpiece 10 can only be extruded in a curled shape. Therefore, the curled workpiece 10 needs to be flattened later. This curled workpiece 10 cannot be completely flattened by ordinary flattening methods, and some workpieces 10 are not flat plates with uniform thickness. If directly flattened, it is easy to cause the shape of the workpiece 10 after shaping not to meet the requirements.

[0003] In addition, after the external force applied to the workpiece 10 is removed, the shaped workpiece 10 will have a certain degree of springback due to its own elastic recovery, and ordinary shaping devices cannot solve this problem. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present invention provides a downward pressing and shaping device that can flatten the workpiece to a high flatness and is not easy to damage the workpiece.

[0005] A downward pressing and shaping device according to an embodiment of the present invention includes: a frame, on which a loading platform is provided; a fixing mechanism, provided on the frame or the loading platform, for positioning and fixing the end of the curled workpiece on the frame or the loading platform; a sliding frame, slidably provided on the frame along a direction parallel to the loading platform; a pressing assembly, movably provided on the sliding frame, capable of pressing the curled workpiece against the loading platform; a linear driving mechanism, connected to the sliding frame, for driving the sliding frame to reciprocate, so that the pressing assembly flattens the workpiece on the loading platform.

[0006] The downward pressing and shaping device according to an embodiment of the present invention has at least the following beneficial effects:

[0007] When flattening a curled workpiece, the end of the curled workpiece is fixed on the frame or the loading platform by the fixing mechanism, and then the pressing assembly presses one end of the workpiece close to the fixing mechanism against the loading platform. The linear driving mechanism drives the pressing assembly on the sliding frame to reciprocate along a direction parallel to the loading platform, so that the curled workpiece gradually adheres to the loading platform, thereby shaping the workpiece into a flattened state; the downward pressing and shaping device with the above structure can flatten the workpiece to a high flatness and is not easy to damage the workpiece.

[0008] In some embodiments of the present invention, the pressing assembly includes a lower swing arm rotatably disposed on the sliding frame, a lower pressing roller rotatably disposed at a free end of the lower swing arm, and a driving mechanism for driving the lower swing arm to rotate.

[0009] In some embodiments of the present invention, one end of the lower swing arm away from the lower pressure roller is rotatably set on the sliding frame through a rotating shaft, and the driving mechanism includes a piston cylinder and a connecting rod. The cylinder body of the piston cylinder is rotatably set on the sliding frame, the rod portion of the piston cylinder is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is fixedly connected to the rotating shaft.

[0010] In some embodiments of the present invention, the fixing mechanism includes a pressing member, a pressing arm and a linear drive, the pressing member is arranged along the width direction of the stage and is used to press the end of the workpiece downward, the middle part of the pressing arm is arranged on the frame, one end of the pressing arm is rotatably connected to the pressing member, and the other end of the pressing arm is rotatably connected to the output end of the linear drive.

[0011] In some embodiments of the present invention, the sliding frame is provided with a long condition arranged along its sliding direction, and the upper part of the pressing member is provided with a limiting plane corresponding to the long condition. During the reciprocating sliding of the sliding frame, the long condition always presses downward against the limiting plane to prevent the pressing member from moving upward relative to the worktable.

[0012] In some embodiments of the present invention, the upper surface of the stage is provided with a first positioning groove for positioning and fixing an end portion of the workpiece, and the first positioning groove is arranged opposite to the pressing member.

[0013] In some embodiments of the present invention, the loading platform includes an elastically deformable receiving plate, and an adjusting mechanism for adjusting the curvature of the receiving plate is provided between the receiving plate and the frame.

[0014] In some embodiments of the present invention, the adjustment mechanism includes a plurality of screw assemblies connected between the receiving plate and the frame, and the length of the screw assemblies is adjustable so that the portion of the receiving plate connected to the corresponding screw assemblies is close to or away from the frame.

[0015] In some embodiments of the present invention, a plurality of support beams arranged at intervals along the front-to-rear direction of the loading platform are mounted at the lower portion of the loading plate, the length direction of the support beams extends along the width direction of the loading plate, and the support beams have a plurality of connecting ribs spaced apart along their length direction and connected between the bottom of the loading plate and the support beams.

[0016] In some embodiments of the present invention, guide rails extending in the front - rear direction of the loading platform are provided on the frame. Sliders slidably disposed on the guide rails are provided on the sliding frame. The linear driving mechanism includes an oil cylinder fixed to the frame and located below the sliding frame. A connecting bracket extending downward is provided at the bottom of the sliding frame, and the connecting bracket is fixedly connected to the push rod of the oil cylinder.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above - mentioned and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic structural view of an embodiment of the downward pressing and shaping device of the present invention;

[0020] Figure 2 is Figure 1 a schematic structural view of the fixing mechanism, the pressing assembly and the sliding frame of the embodiment;

[0021] Figure 3 is Figure 1 a schematic structural view of the loading platform, the adjusting mechanism and the downward pressing member of the embodiment;

[0022] Figure 4 is a schematic view of the extruder extruding and curling a workpiece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described by referring to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0024] In the description of the present invention, it should be understood that for the orientation description, terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0025] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the base number, and understandings such as "above", "below", "within", etc. include the base number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0026] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] See Figures 1 to 3 , a downward pressing and shaping device of the present invention includes: a frame 100, on which a loading platform 200 is provided; a fixing mechanism 300, arranged on the frame 100 or the loading platform 200, for positioning and fixing the end of the curled workpiece 10 on the frame 100 or the loading platform 200; a sliding frame 400, slidingly arranged on the frame 100 along a direction parallel to the loading platform 200; a pressing assembly, movably arranged on the sliding frame 400, capable of pressing the curled workpiece 10 onto the loading platform 200; a linear driving mechanism 700, connected to the sliding frame 400, for driving the sliding frame 400 to reciprocate, so that the pressing assembly flattens the workpiece 10 on the loading platform 200.

[0028] When it is necessary to flatten the curled workpiece 10, the end of the curled workpiece 10 is fixed on the frame 100 or the loading platform 200 through the fixing mechanism 300, and then the pressing assembly is used to press one end of the workpiece 10 close to the fixing mechanism 300 onto the loading platform 200. The pressing assembly on the sliding frame 400 is driven by the linear driving mechanism 700 to reciprocate along a direction parallel to the loading platform 200, so that the curled workpiece 10 gradually adheres to the loading platform 200, thereby shaping the workpiece 10 into a flattened state; the downward pressing and shaping device with the above structure can flatten the workpiece 10 to a high flatness and is not easy to damage the workpiece 10.

[0029] See Figure 1 and Figure 2, in some embodiments of the present invention, the pressing assembly includes a lower swing arm 510 rotatably arranged on the sliding frame 400, a lower pressing roller 520 rotatably arranged at the free end of the lower swing arm 510, and a driving mechanism 530 for driving the lower swing arm 510 to rotate. It can be understood that when the driving mechanism 530 drives the lower swing arm 510 to rotate, it can drive the lower pressing roller 520 to swing downward to press a part of the workpiece 10 against the carrier table 200, or when the driving mechanism 530 drives the lower swing arm 510 to rotate, it can drive the lower pressing roller 520 to swing upward to take out the workpiece 10 that has been shaped. This pressing assembly has a simple structure and is convenient to operate.

[0030] See Figure 1 and Figure 2 , in some embodiments of the present invention, one end of the lower swing arm 510 away from the lower pressing roller 520 is rotatably arranged on the sliding frame 400 through a rotating shaft member 533. The driving mechanism 530 includes a piston cylinder 531 and a connecting rod 532. The cylinder body of the piston cylinder 531 is rotatably arranged on the sliding frame 400. The rod part of the piston cylinder 531 is rotatably connected to one end of the connecting rod 532, and the other end of the connecting rod 532 is fixedly connected to the rotating shaft member 533. It should be noted that when the rod part of the piston cylinder 531 extends, the cylinder body of the piston cylinder 531 rotates a certain angle relative to the sliding frame 400. The connecting rod 532 and the lower swing arm 510 rotate as a whole in the axial direction of the rotating shaft member 533, and the lower pressing roller 520 on the lower swing arm 510 swings downward to press against the workpiece 10. Among them, the distance between the rod part of the piston cylinder 531 and the axis of the rotating shaft member 533 is greater than the distance between the axis of the lower pressing roller 520 and the axis of the rotating shaft member 533. Therefore, the above pressing assembly constitutes a labor-saving lever structure, and the piston cylinder 531 only needs to provide a small thrust to keep the lower pressing roller 520 stably pressing against the surface of the workpiece 10 to ensure the flattening effect of the workpiece 10.

[0031] See Figure 1 and Figure 2 , in some embodiments of the present invention, the fixing mechanism 300 includes a lower pressing member 310, a lower pressing arm 320 and a linear driver 330. The lower pressing member 310 is arranged along the width direction of the carrier table 200 and is used to press down the end of the workpiece 10. The middle part of the lower pressing arm 320 is arranged on the frame 100. One end of the lower pressing arm 320 is rotatably connected to the lower pressing member 310, and the other end of the lower pressing arm 320 is rotatably connected to the output end of the linear driver 330. It can be understood that when the linear driver 330 drives the end of the lower pressing arm 320 away from the lower pressing member 310 to swing upward, the other end of the lower pressing arm 320 swings downward, and the lower pressing member 310 can press the workpiece 10. The lower pressing member 310 is arranged along the width direction of the carrier table 200 to press each position in the width direction of the workpiece 10, ensuring the fixing effect on the end of the workpiece 10.

[0032] See Figure 2In some embodiments of the present invention, the sliding frame 400 is provided with a long condition 410 arranged along its sliding direction, and the upper part of the pressing member 310 is provided with a limiting plane 311 corresponding to the long condition 410. During the reciprocating sliding of the sliding frame 400, the long condition 410 always presses downward against the limiting plane 311 to prevent the pressing member 310 from moving upward relative to the stage 200. It should be noted that the sliding direction of the sliding frame 400 is the movement direction for flattening the workpiece 10. During the reciprocating sliding of the sliding frame 400, the long condition 410 always presses downward against the limiting plane 311, which has a locking effect on the pressing member 310, avoiding the situation where the pressing member 310 fails to press the workpiece 10 due to failure of the linear drive 330 or other reasons, thereby improving the stability of the quality of shaping the workpiece 10.

[0033] See also Figure 3 In some embodiments of the present invention, the upper surface of the stage 200 is provided with a first positioning groove 201 for positioning and fixing the end of the workpiece 10, and the first positioning groove 201 is arranged opposite to the pressing member 310. In this embodiment, both ends of the workpiece 10 have a convex portion 11 and a vertical plate portion 12, and the first positioning groove 201 can be used to accommodate the convex portion 11. At the same time, the combination of the convex portion 11 and the first positioning groove 201 can prevent the workpiece 10 from moving along the sliding direction of the sliding frame 400. Among them, the pressing member 310 includes a first pressing leg and a second pressing leg, and a space for the vertical plate portion 12 to pass through is defined between the first pressing leg and the second pressing leg, which plays a role in limiting the separation of the workpiece 10.

[0034] See also Figure 3 In some embodiments of the present invention, the stage 200 includes an elastically deformable receiving plate 210, and an adjusting mechanism 600 for adjusting the curvature of the receiving plate 210 is provided between the receiving plate 210 and the frame 100. By adjusting the curvature of the receiving plate 210 by the adjusting mechanism 600, the curled workpiece 10 can be adapted to be shaped into workpieces 10 of different shapes. Moreover, it should be noted that for workpieces 10 made of materials such as steel and aluminum, when the workpiece 10 is removed from the downward pressure shaping device, the shaped workpiece 10 will rebound to a certain extent due to its own elastic recovery. For example, when the workpiece 10 is flattened on the stage 200 and removed, the workpiece 10 will bend upward to a certain curvature, and when the receiving plate 210 is adjusted to a downward curved arc by the adjusting mechanism 600, the middle part of the shaped workpiece 10 forms an arched shape, and when the workpiece 10 is removed from the receiving plate 210, the workpiece 10 will rebound to a certain extent and just achieve a higher flatness. It can be seen that the adjustment mechanism 600 can adjust the curvature of the receiving plate 210 to compensate for the deformation of the workpiece 10 in a certain direction.

[0035] See also Figure 1 andFigure 3 , in some embodiments of the present invention, the adjusting mechanism 600 includes a plurality of screw rod assemblies connected between the receiving plate 210 and the machine frame 100. The length of the screw rod assemblies is adjustable so that the part of the receiving plate 210 connected to the corresponding screw rod assembly approaches or moves away from the machine frame 100. Among them, in this embodiment, one end of the receiving plate 210 is fixed on the machine frame 100, and the other end of the receiving plate 210 is connected to the machine frame 100 through a plurality of the above-mentioned screw rod assemblies. The middle part of the receiving plate 210 is connected to the machine frame 100 through a plurality of the above-mentioned screw rod assemblies. By adjusting the length of the screw rod assemblies connected between the receiving plate 210 and the machine frame 100, the local position of the receiving plate 210 can be driven to deform upward or downward, so as to adjust the receiving plate 210 into a corresponding arc and shape. The adjustment method of this adjusting mechanism 600 is simple, easy to use, and has a low cost.

[0036] See Figure 3 , in some embodiments of the present invention, in order to enable the receiving plate 210 to form an arc surface with a relatively stable curvature so that the workpiece 10 can achieve better flatness after springback, a plurality of support beams 220 are arranged at intervals in the front-rear direction of the loading platform 200 under the receiving plate 210. The length direction of the support beams 220 extends along the width direction of the receiving plate 210. A plurality of connecting ribs 230 connecting the bottom of the receiving plate 210 and the support beams 220 are distributed at intervals along the length direction of the support beams 220. In this embodiment, a cross beam 240 connecting all the support beams 220 together is arranged below the middle part of the receiving plate 210. Both ends of the cross beam 240 are installed on the machine frame 100 through a screw rod assembly respectively. When the length of the screw rod assembly is adjusted, the cross beam 240 can drive the middle parts of all the support beams 220 to bend upward or downward. At this time, the connecting ribs 230 distributed at intervals along the length direction of the support beams 220 can drive the receiving plate 210 to deform evenly, so as to form an arc surface with a stable curvature, and finally shape a workpiece 10 with excellent quality.

[0037] See Figure 1 , in some embodiments of the present invention, a guide rail 110 extending in the front-rear direction of the loading platform 200 is provided on the machine frame 100. A slider 420 slidably arranged on the guide rail 110 is provided on the sliding frame 400. The linear driving mechanism 700 includes an oil cylinder fixed to the machine frame 100 and located below the sliding frame 400. A connecting bracket extending downward is provided at the bottom of the sliding frame 400, and the connecting bracket is fixedly connected to the push rod of the oil cylinder. The telescopic movement of the oil cylinder can be converted into the front-back flattening action of the pressing component.

[0038] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A down-pressing shaping device, characterized in that, Comprising: A frame (100) with a loading platform (200) provided thereon; A fixing mechanism (300) provided on the frame (100) or the loading platform (200) for positioning and fixing the end of the curled workpiece (10) on the frame (100) or the loading platform (200); A sliding carriage (400) slidably provided on the frame (100) along a direction parallel to the loading platform (200); A pressing assembly movably provided on the sliding carriage (400) capable of pressing the curled workpiece (10) against the loading platform (200); A linear driving mechanism (700) connected to the sliding carriage (400) for driving the sliding carriage (400) to reciprocally slide so that the pressing assembly flattens the workpiece (10) on the loading platform (200).

2. The downward pressing and shaping device according to claim 1, characterized in that: The pressing assembly includes a lower swing arm (510) rotatably provided on the sliding carriage (400), a downward pressing roller (520) rotatably provided at the free end of the lower swing arm (510), and a driving mechanism (530) for driving the lower swing arm (510) to rotate.

3. The downward pressing and shaping device according to claim 2, characterized in that: One end of the lower swing arm (510) away from the downward pressing roller (520) is rotatably provided on the sliding carriage (400) through a rotating shaft member (533). The driving mechanism (530) includes a piston cylinder (531) and a connecting rod (532). The cylinder body of the piston cylinder (531) is rotatably provided on the sliding carriage (400). The rod portion of the piston cylinder (531) is rotatably connected to one end of the connecting rod (532), and the other end of the connecting rod (532) is fixedly connected to the rotating shaft member (533).

4. The downward pressing and shaping device according to claim 1, characterized in that: The fixing mechanism (300) includes a downward pressing member (310), a downward pressing arm (320), and a linear driver (330). The downward pressing member (310) is arranged along the width direction of the loading platform (200) and is used for downwardly pressing the end of the workpiece (10). The middle part of the downward pressing arm (320) is provided on the frame (100). One end of the downward pressing arm (320) is rotatably connected to the downward pressing member (310), and the other end of the downward pressing arm (320) is rotatably connected to the output end of the linear driver (330).

5. The downward pressing and shaping device according to claim 4, characterized in that: The sliding carriage (400) is provided with a long condition (410) arranged along its sliding direction. The upper part of the downward pressing member (310) is provided with a limiting plane (311) corresponding to the long condition (410). During the reciprocating sliding of the sliding carriage (400), the long condition (410) always downwardly abuts against the limiting plane (311) to prevent the downward pressing member (310) from moving upward relative to the loading platform (200).

6. The downward pressing and shaping device according to claim 4, characterized in that: The upper surface of the stage (200) is provided with a first positioning groove (201) for positioning and fixing the end of the workpiece (10), and the first positioning groove (201) is arranged opposite to the pressing member (310).

7. The pressing and shaping device according to claim 1, wherein: The stage (200) includes an elastically deformable bearing plate (210), and an adjusting mechanism (600) for adjusting the curvature of the bearing plate (210) is arranged between the bearing plate (210) and the machine frame (100).

8. The pressing and shaping device according to claim 7, wherein: The adjusting mechanism (600) includes a plurality of screw rod assemblies connected between the bearing plate (210) and the machine frame (100), and the length of the screw rod assemblies is adjustable so that the part of the bearing plate (210) connected to the corresponding screw rod assembly approaches or moves away from the machine frame (100).

9. The pressing and shaping device according to claim 8, wherein: A plurality of support beams (220) are arranged at intervals in the front-back direction of the stage (200) under the bearing plate (210), the length direction of the support beams (220) extends along the width direction of the bearing plate (210), and a plurality of connecting ribs (230) connecting the bottom of the bearing plate (210) and the support beams (220) are distributed at intervals along the length direction of the support beams (220).

10. The pressing and shaping device according to claim 1, wherein: A guide rail (110) extending in the front-back direction of the stage (200) is arranged on the machine frame (100), a slider (420) slidably arranged on the guide rail (110) is arranged on the sliding frame (400), the linear driving mechanism (700) includes an oil cylinder fixed to the machine frame (100) and located below the sliding frame (400), and a connecting bracket extending downward is arranged at the bottom of the sliding frame (400), and the connecting bracket is fixedly connected to the push rod of the oil cylinder.

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