A compensation device for folding machine

Abstract

The present invention discloses a compensation device for a folding machine, which relates to the technical field of folding machines and includes a frame, a lower pressing die compensation mechanism, a pressing slider height pre-convex compensation structure, an upper pressing die horizontal convexity compensation adjustment structure and a folding die compensation adjustment structure. A lower pressing die and an upper pressing die are respectively provided on one side of the frame. The beneficial effects of the present invention are as follows: the length and height can be adjusted by the inclined wedge structure of the lower pressing die connecting seat, and when facing local dimensional deviation in processing, single-point adjustment can be made to achieve full-length equal height adjustment. The upper die hanging plate is pre-set with a lower convexity to avoid upper and lower deflection deformation caused by the pressing power action point on both sides of the upper pressing beam, thereby causing the sheet material to be not pressed tightly. An adjustable structure is provided on the top of the upper die of the folding beam to adjust the uneven size of the upper and lower folding dies in the vertical direction, thereby achieving accuracy compensation for obtuse-angle folding or large arcs.

Description

Technical Field

[0001] The present invention relates to a compensation device, in particular to a compensation device for a folding machine, and belongs to the technical field of folding machines. Background Art

[0002] When folding, the upper and lower pressing molds and the upper and lower folding molds need to ensure sufficient precision and uniform rigidity in the horizontal and vertical directions respectively. However, the folding machine frame needs to have the necessary upper and lower presser foot avoidance grooves, resulting in local weak rigidity. Moreover, as the length of the machine increases, it is difficult to ensure full-length wire-level accuracy for longer models, and the production, processing and assembly processes are difficult to guarantee.

[0003] Among them, the "economical folding machine" disclosed in the application number "CN202022563041.5" is also an increasingly mature technology. A slider is provided on the front side of its fuselage, an upper die base is installed on the lower side of the slider, an upper die is installed on the upper die base, and a lower die is installed on the fuselage via a lower die base; a folding beam is provided on the side corresponding to the upper die and the lower die, and a longitudinal drive mechanism for driving the longitudinal movement of the folding beam and a transverse drive mechanism for driving the transverse movement of the folding beam are provided on the fuselage; a workbench is provided on the machine base; the machine base is provided with a positioning finger that can extend out of the workbench surface, and the machine base is also provided with a suction cup feeding device, which is arranged on a suction cup bracket, and the suction cup bracket is installed on the machine base via a fourth guide rail slider mechanism, and a feeding screw is rotatably provided on the machine base, and a feeding drive motor is provided at the shaft end of the feeding screw, and a feeding nut engaged with the feeding screw is connected to the suction cup bracket. The device has a simple and compact structure, low manufacturing cost, and good economy. It can be used for folding processing of various plates;

[0004] However, in actual use, there are still the following defects: the folding beam and the folding die are difficult to adjust, which is time-consuming and labor-intensive and has low production efficiency. Summary of the Invention

[0005] The object of the present invention is to provide a compensation device for a folding machine to solve the problem of difficulty in adjusting the folding beam and the folding die proposed in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a compensation device for a folding machine, comprising a frame, a lower pressing die compensation mechanism, a pressing slide height pre-convex compensation structure, an upper pressing die horizontal convexity compensation adjustment structure, and a folding die compensation adjustment structure, wherein a lower pressing die and an upper pressing die are respectively provided on one side of the frame;

[0007] The lower pressing die compensation mechanism includes a lower die connecting seat, the lower die connecting seat is fixedly connected to the lower pressing die by a first fixing screw, a plurality of square grooves are formed on the top of the lower die connecting seat, an inclined wedge block is provided inside each of the square grooves, and the plurality of inclined wedge blocks are connected to the lower die connecting seat by a first adjusting screw and a first fixing screw;

[0008] The pressing slider height pre-convex compensation structure includes a pressing slider and an upper mold hanging plate, the pressing slider is connected to the top of the upper pressing mold through the upper mold hanging plate, and the bottom of the upper mold hanging plate is provided with a downward convex;

[0009] The upper pressing die horizontal convexity compensation adjustment structure includes an upper pressing beam, an inclined wedge plate is provided in the middle of the back of the upper pressing beam, a linear guide rail is provided on one side of the inclined wedge plate, a sliding seat is provided on the surface of the linear guide rail, the sliding seat is fixedly connected to the upper pressing beam by connecting bolts, a small support is fixedly provided on the top of the inclined wedge plate, and the small support is fixedly connected to the transition plate by a hexagonal bolt;

[0010] The folding mold compensation adjustment structure includes a folding beam, a lower folding mold and an upper folding mold. The two ends of the folding beam are respectively provided with an upper step and a lower step. The lower folding mold is connected to one side of the lower step through a fourth fixing screw, and the upper folding mold is connected to one side of the upper step through a fourth fixing screw.

[0011] Preferably, a raised step is provided at the bottom end of the lower mold connecting seat, and the raised step is connected to the lower pressing mold through a second adjusting screw and a first fixing screw.

[0012] Preferably, the lower mold connecting seat is fixedly connected to the lower pressing mold by a second fixing screw.

[0013] Preferably, the upper folding die is provided with countersunk screw holes in the horizontal direction and the vertical direction.

[0014] Preferably, the upper folding die is connected to the folding beam via a third fixing screw and a third adjusting screw.

[0015] Compared with the related art, the folding machine compensation device provided by the present invention has the following beneficial effects:

[0016] 1. The length and height can be adjusted by pressing the wedge structure of the mold connection seat downward. When facing local dimensional deviation during processing, single-point adjustment can be made to achieve full-length and equal-height adjustment.

[0017] 2. The upper die hanging plate is pre-set with a downward convex shape to avoid the upper and lower deflection caused by the pressing force acting on both sides of the upper pressing beam, which may lead to the sheet metal not being pressed tightly.

[0018] 3. The front and rear convexity of the upper pressing die can be adjusted by setting an inclined wedge plate with a linear guide rail on the middle rear side. In particular, it can compensate for the local rigidity weakening caused by the notch between the frame and the upper pressing beam. The upper die hanging plate is adjusted to a central convex arc to achieve angle compensation.

[0019] 4. By setting an adjustable structure on the top of the upper mold of the hemming beam, the uneven size of the upper and lower hemming molds in the vertical direction can be adjusted to achieve precision compensation for obtuse hemming or large arcs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the folding machine host;

[0021] Figure 2 This is a schematic diagram of the structure of the main mold and compensation adjustment device of the folding machine;

[0022] Figure 3 Schematic diagram of the structure of the lower pressing mold;

[0023] Figure 4 Schematic diagram of the lower clamping die compensation mechanism;

[0024] Figure 5 Schematic diagram of the structure of the upper compression beam;

[0025] Figure 6 Schematic diagram of the structure of the upper mold hanging plate;

[0026] Figure 7 This is a structural diagram of the pre-convex compensation structure of the pressing slider height;

[0027] Figure 8 This is a schematic diagram of the structure for the folding die compensation adjustment.

[0028] In the figure: 1. Frame; 2. Lower pressing die; 3. Upper pressing die; 4. Folding beam; 5. Upper pressing beam; 6. Lower die connecting seat; 7. First adjusting screw; 8. First fixing screw; 9. Second adjusting screw; 10. Pressing slide; 11. Wedge block; 12. Second fixing screw; 13. Upper die hanging plate; 14. Slide; 15. Wedge plate; 16. Connecting bolt; 17. Transition plate; 18. Small support; 19. Hexagonal bolt; 21. Lower folding die; 22. Upper folding die; 23. Third fixing screw; 24. Third adjusting screw; 25. Fourth fixing screw. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1:

[0031] See also Figure 1-8 The present invention provides a compensation device for a folding machine, comprising a frame 1, a lower pressing die compensation mechanism, a pressing slider height pre-convex compensation structure, an upper pressing die horizontal convexity compensation adjustment structure, and a folding die compensation adjustment structure. A lower pressing die 2 and an upper pressing die 3 are provided on one side of the frame 1.

[0032] The lower pressing die compensation mechanism includes a lower die connecting base 6, which is fixedly connected to the lower pressing die 2 by a first fixing screw 8. A plurality of square grooves are formed on the top of the lower die connecting base 6, each of which is provided with an inclined wedge block 11. The plurality of inclined wedge blocks 11 are connected to the lower die connecting base 6 by a first adjusting screw 7 and a first fixing screw 8.

[0033] The pressing slider height pre-convex compensation structure includes a pressing slider 10 and an upper die hanging plate 13. The pressing slider 10 is connected to the top of the upper pressing mold 3 through the upper die hanging plate 13. The bottom of the upper die hanging plate 13 is provided with a downward convex;

[0034] The upper pressing die horizontal convexity compensation adjustment structure includes an upper pressing beam 5, an inclined wedge plate 15 is provided in the middle of the back of the upper pressing beam 5, a linear guide is provided on one side of the inclined wedge plate 15, a slide 14 is provided on the surface of the linear guide, and the slide 14 is fixedly connected to the upper pressing beam 5 by a connecting bolt 16. A small support 18 is fixedly provided on the top of the inclined wedge plate 15, and the small support 18 is fixedly connected to the transition plate 17 by a hexagonal bolt 19;

[0035] The hemming mold compensation adjustment structure includes a hemming beam 4, a lower hemming mold 21 and an upper hemming mold 22. The two ends of the hemming beam 4 are respectively provided with an upper step and a lower step. The lower hemming mold 21 is connected to one side of the lower step by a fourth fixing screw 25, and the upper hemming mold 22 is connected to one side of the upper step by a fourth fixing screw 25.

[0036] The bottom end of the lower mold connecting seat 6 is provided with a raised step, which is connected to the lower pressing mold 2 through the second adjusting screw 9 and the first fixing screw 8;

[0037] The lower die connecting base 6 is fixedly connected to the lower pressing die 2 via a second fixing screw 12;

[0038] The upper folding die 22 is provided with countersunk screw holes in both the horizontal and vertical directions;

[0039] The upper hemming die 22 is connected to the hemming beam 4 via a third fixing screw 23 and a third adjusting screw 24 .

[0040] Working principle: When using this device, first, the length and height are adjustable through the inclined wedge block 11 on the lower mold connecting seat 6. When facing local dimensional deviation in processing, single-point adjustment can be made to achieve full-length equal height adjustment. Then, the pre-set lower convexity on the upper mold hanging plate 13 is used to avoid the upper and lower deflection deformation caused by the clamping power action point on both sides of the upper clamping beam 5, which causes the sheet material to not be pressed tightly. Secondly, the inclined wedge plate 15 with a linear guide rail is set on the middle rear side to achieve the front and rear convexity adjustment of the upper clamping mold 3. In particular, it can compensate for the local rigidity weakening caused by the middle notch between the frame 1 and the upper clamping beam 5, and adjust the upper mold hanging plate 13 to a middle convex arc to achieve angle compensation; finally, an adjustable structure is set at the top of the upper folding beam 4 to adjust the vertical dimensional unevenness of the lower folding mold 21 and the upper folding mold 22, thereby achieving accuracy compensation for obtuse folding or large arcs.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A folding machine compensation device, comprising a frame (1), a lower pressing die compensation mechanism, a pressing slide height pre-convex compensation structure, an upper pressing die horizontal convexity compensation adjustment structure and a folding die compensation adjustment structure, characterized in that: A lower pressing mold (2) and an upper pressing mold (3) are respectively provided on one side of the frame (1); The lower clamping die compensation mechanism includes a lower die connecting seat (6), the lower die connecting seat (6) is fixedly connected to the lower clamping die (2) via a first fixing screw (8), a plurality of square grooves are provided at the top of the lower die connecting seat (6), an inclined wedge block (11) is provided inside each of the square grooves, and the plurality of inclined wedge blocks (11) are connected to the lower die connecting seat (6) via a first adjusting screw (7) and a first fixing screw (8); The pressing slider height pre-convex compensation structure comprises a pressing slider (10) and an upper die hanging plate (13), wherein the pressing slider (10) is connected to the top end of the upper pressing die (3) via the upper die hanging plate (13), and the bottom of the upper die hanging plate (13) is provided with a downward convexity; The upper pressing die horizontal convexity compensation adjustment structure comprises an upper pressing beam (5), an inclined wedge plate (15) is provided in the middle of the back of the upper pressing beam (5), a linear guide rail is provided on one side of the inclined wedge plate (15), a sliding seat (14) is provided on the surface of the linear guide rail, the sliding seat (14) is fixedly connected to the upper pressing beam (5) by a connecting bolt (16), a small support (18) is fixedly provided on the top of the inclined wedge plate (15), and the small support (18) is fixedly connected to the transition plate (17) by a hexagonal bolt (19); The folding die compensation adjustment structure comprises a folding beam (4), a lower folding die (21) and an upper folding die (22), wherein the two ends of the folding beam (4) are respectively provided with an upper step and a lower step, the lower folding die (21) is connected to one side of the lower step via a fourth fixing screw (25), and the upper folding die (22) is connected to one side of the upper step via a fourth fixing screw (25).

2. A folding machine compensation device according to claim 1, characterized in that: A raised step is provided at the bottom end of the lower die connecting seat (6), and the raised step is connected to the lower pressing die (2) via a second adjusting screw (9) and a first fixing screw (8).

3. The folding machine compensation device according to claim 1, characterized in that: The lower die connecting seat (6) is fixedly connected to the lower pressing die (2) via a second fixing screw (12).

4. The folding machine compensation device according to claim 1, characterized in that: The upper folding die (22) is provided with countersunk screw holes in both the horizontal and vertical directions.

5. The folding machine compensation device according to claim 1, characterized in that: The upper folding die (22) is connected to the folding beam (4) via a third fixing screw (23) and a third adjusting screw (24).

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