A folding device and folding system

Abstract

The utility model relates to a kind of edge folding device, comprising: lower die holder, it is used to place the workpiece to be folded edge;First edge folding mechanism, it is set to the first side of the workpiece to be folded edge, it includes: multiple first air cylinders, the output end of multiple first air cylinders is connected with first pusher, the first pusher is along the first direction setting adaptation to the first side of workpiece to be folded edge;Second edge folding mechanism, it is set to the second side of the lower die holder, it includes: second air cylinder and third air cylinder, second air cylinder and third air cylinder are respectively set to the both ends of workpiece second side to be folded edge;Corner mechanism, it includes: fourth air cylinder and fourth pusher connected to the output end of fourth air cylinder.The utility model makes folding more uniform by above-mentioned setting, simultaneously it is convenient to replace each pusher independently, and the flatness of folding is improved.

Description

Technical Field

[0001] This utility model relates to the field of folding devices, and in particular to a folding device and folding system. Background Technology

[0002] In the automotive interior manufacturing industry, the folding process is a key step in workpiece forming. Its core lies in using mechanical devices to fold and wrap the flexible sheet material of the workpiece to meet the design requirements for flatness, precision, and aesthetics.

[0003] The existing bending device's bracket and pushing components are mostly designed with fixed angles. When the workpiece to be bent is an inclined surface, an arc surface, or multiple folds at different angles, there is a problem of insufficient force in the middle area, resulting in defects such as a concave center and warped ends at the edge after bending. Due to the large span, the pushing rigidity is insufficient, resulting in uneven bending, and the overall replacement cost is high. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problem of insufficient force in the middle area when the workpiece to be folded is an inclined surface, an arc surface or multiple folds at different angles in the prior art, thereby providing a folding device and folding system.

[0005] To solve the above-mentioned technical problems, this utility model provides a folding device, comprising:

[0006] The lower die holder is used to hold the workpiece to be folded.

[0007] A first folding mechanism is disposed on the first side of the workpiece to be folded, and includes: a plurality of first cylinders, the output ends of the plurality of first cylinders are all connected to a first pusher, and the first pusher is disposed along a first direction to be adapted to the first side of the workpiece to be folded.

[0008] The second bending mechanism is disposed on the second side of the lower die base and includes a second cylinder and a third cylinder. The second cylinder and the third cylinder are respectively disposed at both ends of the second side of the workpiece to be bent, and the output ends of the second cylinder and the third cylinder are respectively detachably connected to a second pusher and a third pusher.

[0009] A bending mechanism includes a fourth cylinder and a fourth pusher connected to the output end of the fourth cylinder, the fourth pusher being movable to the junction of the first and second sides of the workpiece to be bent.

[0010] In one embodiment of the present invention, a plurality of first supports are further included, and a plurality of first cylinders are respectively disposed on the first supports. The first supports are disposed on the ground and extend in a third direction toward the workpiece to be folded. A first fixing plate for mounting the first cylinders is detachably installed at the end of the first supports.

[0011] In one embodiment of the present invention, the plane on which the first fixing plate is located has a first included angle with the horizontal plane, and the angle of the first included angle is adapted to the shape of the first side of the workpiece to be folded.

[0012] In one embodiment of the present invention, the plurality of first cylinders are configured to include at least a first sub-cylinder, a second sub-cylinder, and a third sub-cylinder, wherein the output ends of the first sub-cylinder, the second sub-cylinder, and the third sub-cylinder are all detachably connected to the first pusher.

[0013] In one embodiment of the present invention, the first pushing member includes a first sub-pushing member, a second sub-pushing member, and a third sub-pushing member, wherein the first sub-pushing member, the second sub-pushing member, and the third sub-pushing member correspond to the output ends of the first sub-cylinder, the second sub-cylinder, and the third sub-cylinder, respectively.

[0014] In one embodiment of the present invention, the first sub-push member, the second sub-push member, and the third sub-push member each include: a support plate and an extension plate. The support plate is connected to the corresponding first cylinder, and the extension plate is connected to the end of the support plate and extends to both sides along a first direction. Adjacent extension plates are fitted together.

[0015] In one embodiment of the present invention, the extension plate is provided with a protrusion on the side near the workpiece to be folded, and the size of the protrusion gradually decreases towards the workpiece to be folded.

[0016] In one embodiment of the present invention, a second bracket is further included, and a second fixing plate for mounting a second cylinder is provided at the end of the second bracket. The plane and the vertical plane of the second fixing plate have a second included angle.

[0017] In one embodiment of the present invention, the first bracket is detachably mounted with a third fixing plate, and the plane and the vertical plane of the third fixing plate have a third included angle.

[0018] This utility model also discloses a folding system, including the folding device described above.

[0019] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0020] The present invention discloses a folding device, wherein the top surface of the lower mold base is provided with a positioning groove that matches the shape of the workpiece to be folded to stably place the workpiece. The number of first cylinders is determined according to the length of the first side of the workpiece and the folding complexity. The overall shape of the first pusher extends along the first direction and is adapted to the contour of the first side of the workpiece. The length of the first pusher covers the entire folding area of ​​the first side of the workpiece. The second folding mechanism is set on the second side of the workpiece that needs to be folded and adopts an independent drive structure at both ends, which makes the folding more uniform and facilitates the independent replacement of each pusher, thereby improving the flatness of the folding. Attached Figure Description

[0021] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the folding device of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the first folding mechanism of this utility model;

[0024] Figure 3 This is a schematic diagram of the angle bending mechanism of this utility model;

[0025] Figure 4 This is a partial schematic diagram of the first folding mechanism of this utility model;

[0026] Figure 5 This is a schematic diagram of the second folding mechanism of this utility model.

[0027] Explanation of reference numerals in the accompanying drawings: 1. Lower mold base; 2. Second bracket; 3. Fourth bracket; 4. Second cylinder; 5. Fourth cylinder; 6. First cylinder; 61. First sub-cylinder; 62. Second sub-cylinder; 63. Third sub-cylinder; 7. First pusher; 71. First sub-pusher; 72. Second sub-pusher; 73. Third sub-pusher; 8. Slot; 9. Fourth pusher; 10. First bracket; 11. Second pusher; 12. Third pusher; 13. Third cylinder. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention. Example

[0029] Reference Figures 1-5 As shown, this utility model provides a folding device.

[0030] include:

[0031] Lower mold base 1, which is used to place the workpiece to be folded;

[0032] The first folding mechanism is disposed on the first side of the workpiece to be folded, and includes: a plurality of first cylinders 6, the output ends of the plurality of first cylinders 6 are all connected to a first pusher 7, and the first pusher 7 is disposed along a first direction (i.e. left and right direction) to be adapted to the first side of the workpiece to be folded.

[0033] The second folding mechanism is disposed on the second side of the lower mold base 1, and includes: a second cylinder 4 and a third cylinder 13. The second cylinder 4 and the third cylinder 13 are respectively disposed at both ends of the second side of the workpiece to be folded, and the output ends of the second cylinder 4 and the third cylinder 13 are respectively detachably connected to the second pusher 11 and the third pusher 12.

[0034] The corner-folding mechanism includes a fourth cylinder 5 and a fourth pusher 9 connected to the output end of the fourth cylinder 5, the fourth pusher 9 being movable to the adjacent position of the first side and the second side of the workpiece to be folded.

[0035] The present invention discloses a folding device in which a positioning groove matching the shape of the workpiece to be folded is provided on the top surface of the lower mold base 1 to stably place the workpiece. The number of first cylinders 6 is determined according to the length of the first side of the workpiece and the folding complexity. The overall shape of the first pusher 7 extends along the first direction and is adapted to the contour of the first side of the workpiece. The length of the first pusher 7 covers the entire area to be folded on the first side of the workpiece. If the first side of the workpiece is straight, the pusher is a long strip plate; if it is curved, the pusher is an arc plate with the corresponding curvature. The second folding mechanism is set on the second side of the workpiece that needs to be folded and adopts an independent drive structure at both ends. The second pusher 11 and the third pusher 12 have a gap in the second direction (front and back direction) to provide operating space during the folding process. The corner of the fabric to be folded is folded by the fourth cylinder 5 and the fourth pusher 9 of the corner folding mechanism to further improve the flatness.

[0036] The second cylinder 4 and the third cylinder 13 are controlled by independent servo valves and can be synchronized: the two cylinders move at the same speed and with the same stroke, and the gap between the pushers remains constant, which is suitable for symmetrical straight edge bending and ensures balanced force on both ends of the second side. The differentiated design for straight / arc edge bending areas makes the device compatible with various conventional edge bending contours. The full coverage design of the pusher length eliminates blind spots in edge bending, resulting in a higher edge bending integrity rate compared to traditional single-cylinder single-point pushing.

[0037] Reference Figure 2As shown, the mechanism also includes multiple first supports 10, and multiple first cylinders 6 are respectively disposed on the first supports 10. The first supports 10 are disposed on the ground and extend in a third direction (vertical direction) toward the workpiece to be folded. The ends of the first supports 10 are detachably mounted with first fixing plates for mounting the first cylinders 6. The first supports 10 are the basic components supporting the first folding mechanism, and their number corresponds one-to-one with the number of first cylinders 6, that is, each first cylinder 6 is equipped with an independent support, so that the force support of each cylinder is stable. The first fixing plates are mounted on the ends of the supports by bolt connection, and the fixing plates can be quickly replaced by simply loosening the bolts during disassembly.

[0038] The first fixing plate has a first included angle between its plane and the horizontal plane, and the angle of the first included angle is adapted to the shape of the first side of the workpiece to be folded. The first included angle is the inclination angle of the mounting surface of the fixing plate relative to the horizontal reference plane, so that the output direction of the first cylinder 6, i.e., the thrust direction, is consistent with the contour normal direction of the first side of the workpiece to be folded, so that the folding force acts perpendicularly to the edge of the workpiece, avoiding force decomposition caused by angle deviation, and avoiding workpiece slippage or folding angle deviation caused by tangential component force. For the arc-shaped area to be folded, multiple first cylinders 6 distributed along the arc correspond to different first fixing plate angles: so that the thrust of each cylinder is perpendicular to the arc tangent at the corresponding position, and smooth curved surface folding is achieved through segmented angle adaptation, avoiding the curved surface contour deviation caused by traditional single-angle brackets. Through precise adaptation of the first included angle, the thrust of the first cylinder 6 is efficiently converted into an effective force perpendicular to the folding edge, which is especially suitable for high-precision folding of thin and easily deformable materials.

[0039] Reference Figure 3 As shown, it also includes a fourth bracket 3, a fourth cylinder 5 is disposed at the end of the fourth bracket 3, and the end of the fourth pusher 9 is provided with a slot 8, which is adapted to the corner of the first side and the second side adjacent to the workpiece to be folded.

[0040] Reference Figure 2 As shown, the plurality of first cylinders 6 are configured to include at least a first sub-cylinder 61, a second sub-cylinder 62, and a third sub-cylinder 63. The output ends of the first sub-cylinder 61, the second sub-cylinder 62, and the third sub-cylinder 63 are all detachably connected to the first pusher 7. The three are distributed at intervals along the first direction of the first side of the workpiece, forming a segmented drive structure. When a sub-cylinder or pusher is damaged, only the corresponding connecting bolts need to be removed to replace the faulty part individually. By controlling the segmented thrust of at least three sub-cylinders, the problem of central concavity during the bending of long strip workpieces is solved. The dual flexible design, which supports the increase or decrease of the number of cylinders and the quick replacement of the first pusher 7, allows the compatible length of the same bending device to be expanded.

[0041] The first pushing member 7 includes a first sub-pushing member 71, a second sub-pushing member 72, and a third sub-pushing member 73, which correspond to the output ends of the first sub-cylinder 61, the second sub-cylinder 62, and the third sub-cylinder 63, respectively. Each of the first sub-pushing members 71, 72, and 73 includes a support plate and an extension plate. The support plate is connected to the corresponding first cylinder 6, and the extension plate is connected to the end of the support plate and extends to both sides along a first direction. Adjacent extension plates are fitted together. The first pushing member 7 adopts a modular segmented design, with each sub-pushing member independently adapted to the driving direction of the corresponding cylinder. The three are spliced ​​together along the first direction of the first side of the workpiece to form a continuous pushing surface covering the entire area to be folded, solving the problem of segmented force on long or complex contour workpieces. In some embodiments, the edges of the extension plates of adjacent sub-pushing members are provided with mating bosses and grooves. For complex areas to be folded, such as arcs and multi-segment broken lines, extension plates with different curvatures or angles can be customized. For example, the first sub-push component 71 is a straight segment, the second sub-push component 72 is an arc segment, and the third sub-push component 73 is an oblique segment. The mating structure can be used to quickly combine them into a push surface that fits the contour without the need to replace the entire mold.

[0042] Reference Figure 4 As shown, the extension plate has a protrusion on the side near the workpiece to be folded, and the size of the protrusion gradually decreases towards the workpiece, forming a gradient guide structure. This design, by changing the geometry of the contact area, achieves precise guidance of the workpiece edge, uniform stress transmission, and improved stability of the folding process, reducing pushing friction and avoiding scratches on the workpiece surface caused by excessive friction.

[0043] Reference Figure 5 As shown, it also includes a second bracket 2. The end of the second bracket 2 is provided with a second fixing plate for mounting the second cylinder 4. A second included angle exists between the plane of the second fixing plate and the vertical plane. The main body of the second bracket 2 is a column extending vertically. The bottom of the column is connected to the ground or equipment platform via a fixed base. The base is provided with adjustable feet or mounting holes, allowing the bracket to remain stable in the vertical direction while being adaptably installed according to the workpiece height range. The second included angle ensures that the output direction of the second cylinder 4, i.e., the thrust direction, is consistent with the normal direction of the contour of the edge to be folded on the second side of the workpiece. This makes the second included angle equal to the angle between the inclined plane and the vertical plane. The cylinder pushes along the inclined direction, ensuring that the thrust is perpendicular to the edge to be folded, avoiding force decomposition or workpiece slippage due to angular deviation.

[0044] The first bracket 10 is detachably equipped with a third fixing plate, and the plane of the third fixing plate and the vertical plane have a third included angle. The third fixing plate can be installed on the side, top surface or extension end of the first bracket 10. The bracket body has multiple sets of mounting holes, which allow the fixing plate to be adjusted in the vertical direction to adapt to the spatial layout of different workpieces.

[0045] This embodiment also provides a folding system, including the folding device described above.

[0046] The folding system provided in this embodiment also includes a control system, which synchronizes the operation of multiple cylinders in the first folding mechanism and coordinates with the corresponding synchronization of cylinders in the second folding mechanism; a detection and feedback module; and a human-machine interface that supports workpiece model selection, folding parameter setting, fault diagnosis, and production data statistics. By integrating hardware structure, control logic, detection feedback, and human-machine interaction, an automated solution with high flexibility, high precision, and high reliability is formed.

[0047] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A folding device, characterized in that, include: The lower mold base (1) is used to place the workpiece to be folded; The first folding mechanism is disposed on the first side of the workpiece to be folded, and includes: a plurality of first cylinders (6), the output ends of the plurality of first cylinders (6) are all connected to a first pusher (7), and the first pusher (7) is disposed along a first direction to be adapted to the first side of the workpiece to be folded. The second bending mechanism is disposed on the second side of the lower mold base (1), and includes a second cylinder (4) and a third cylinder (13). The second cylinder (4) and the third cylinder (13) are respectively disposed at both ends of the second side of the workpiece to be bent. The output ends of the second cylinder (4) and the third cylinder (13) are respectively detachably connected to the second pusher (11) and the third pusher (12). The bending mechanism includes a fourth cylinder (5) and a fourth pusher (9) connected to the output end of the fourth cylinder (5), the fourth pusher (9) being movable to the adjacent position of the first side and the second side of the workpiece to be bent.

2. The folding device according to claim 1, characterized in that: It also includes multiple first brackets (10), multiple first cylinders (6) are respectively disposed on the first brackets (10), the first brackets (10) are disposed on the ground and extend in a third direction toward the workpiece to be folded, and the end of the first bracket (10) is detachably mounted with a first fixing plate for mounting the first cylinder (6).

3. The folding device according to claim 2, characterized in that: The plane containing the first fixing plate has a first included angle with the horizontal plane, and the angle of the first included angle is adapted to the shape of the first side of the workpiece to be folded.

4. The folding device according to claim 1, characterized in that: The plurality of first cylinders (6) are configured to include at least a first sub-cylinder (61), a second sub-cylinder (62) and a third sub-cylinder (63), the output ends of the first sub-cylinder (61), the second sub-cylinder (62) and the third sub-cylinder (63) being detachably connected to the first pusher (7).

5. A folding device according to claim 1, characterized in that: The first pusher (7) includes a first sub-pusher (71), a second sub-pusher (72), and a third sub-pusher (73), which correspond to the output terminals of the first sub-cylinder (61), the second sub-cylinder (62), and the third sub-cylinder (63), respectively.

6. A folding device according to claim 5, characterized in that: The first sub-push member (71), the second sub-push member (72) and the third sub-push member (73) each include a support plate and an extension plate. The support plate is connected to the corresponding first cylinder (6). The extension plate is connected to the end of the support plate and extends to both sides along the first direction. Adjacent extension plates are fitted together.

7. A folding device according to claim 6, characterized in that: The extension plate has a protrusion on the side near the workpiece to be folded, and the size of the protrusion gradually decreases towards the workpiece to be folded.

8. A folding device according to claim 1, characterized in that: It also includes a second bracket (2), the end of which is provided with a second fixing plate for mounting the second cylinder (4), and the plane and the vertical plane of the second fixing plate have a second included angle.

9. A folding device according to claim 2, characterized in that: The first bracket (10) is detachably mounted with a third fixing plate, and the plane and the vertical plane of the third fixing plate have a third included angle.

10. A folding system, characterized in that, Includes a folding device as described in any one of claims 1-9.

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