Angle-adjustable pneumatic bending machine

Abstract

The utility model provides an angle-adjustable pneumatic bending machine, and relates to the field of pneumatic bending machines, the angle-adjustable pneumatic bending machine comprises a case, a pneumatic telescopic mechanism is arranged above the case, an upper die is arranged below the pneumatic telescopic mechanism, a lower die is arranged at the extrusion end of the case, the lower die comprises an outer shell, and the outer shell is provided with an opening. Lower extrusion plates are symmetrically hinged to the middle of the shell. According to the angle-adjustable pneumatic bending machine, a push block is arranged at the hinged position of a hinged lower extrusion plate, the maximum openable angle of the lower extrusion plate is controlled through stretching and retracting of a pneumatic telescopic column, the air inlet end is connected with and penetrates through a control valve, and the exhaust end is connected with and penetrates through a pressing exhaust valve. A pneumatic pressing end is fixedly installed above the pressing exhaust valve, the air inlet amount can be controlled by controlling the opening time through the control valve, the exhaust amount is determined by controlling the pressing duration through the pressing exhaust valve, and therefore the effect of rapidly adjusting the bending angle can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic bending machine technology, specifically an angle-adjustable pneumatic bending machine. Background Technology

[0002] An angle-adjustable bending machine disclosed in Chinese invention patent application CN 111167895 A includes a base, a worktable connected to the upper surface of the base, a fixed seat symmetrically installed at the middle position of the upper surface of the worktable, symmetrical support plates connected to the worktable on both sides of the fixed seat, brackets fixed on both sides of the worktable, a hydraulic cylinder installed at the upper end of the bracket, a drive shaft connected to the output end of the hydraulic cylinder, and an upper die connected to the lower end of the drive shaft.

[0003] This angle-adjustable bending machine has a first mold and a second mold connected between the side plates. The first mold and the second mold are cross-hinged, and the cross angle can be freely adjusted to achieve the required bending angle. It has a wide range of applications and can meet various bending angle requirements. The position of the slider is fixed by tightening the locking bolts, thus fixing the adjustable angle. At the same time, the rotation of the screw can move the positioning plate on the slide rail, thereby fixing the position of the positioning plate relative to the side plate and ensuring accuracy during the bending process. However, the angle adjustment process is relatively complex and requires a long downtime for adjustment. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an angle-adjustable pneumatic bending machine, which solves the problem of excessive time required for angle adjustment mentioned in the background technology.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: an angle-adjustable pneumatic bending machine, comprising a housing, a pneumatic telescopic mechanism above the housing, an upper die below the pneumatic telescopic mechanism, and a lower die at the extrusion end of the housing. The lower die includes a shell, with lower extrusion plates symmetrically hinged in the middle of the shell. The two lower extrusion plates are fixedly connected by a hinge shaft, and support frames are fixedly installed on both sides of the hinge shaft. The support frames are fixedly connected to the shell. Push blocks are provided on both sides of the hinge of the two hinged lower extrusion plates and below the hinge. The push blocks are fixedly connected to the shell by a pneumatic telescopic column.

[0007] A spring column is fixedly installed on the extrusion end of the casing, and wing plates are fixedly installed on both sides of the outer shell. The surface of the wing plate has through holes that fit onto the outer surface of the spring column.

[0008] The pneumatic telescopic column includes a sleeve, a piston pad is slidably connected inside the sleeve, a sliding rheostat is provided between the piston pad and the sleeve, the sleeve and the piston pad are fixedly connected by a return spring, and the sleeve is provided with an air inlet end and an air outlet end.

[0009] The sleeve has an air inlet end connected to and through a control valve, and an exhaust end connected to and through a press exhaust valve. A pneumatic pressing end is fixedly installed above the press exhaust valve.

[0010] The pneumatic pressing end includes an outer sleeve, inside which a pressure rod is slidably connected. The pressure rod contacts the pressing end of the pressing exhaust valve. The pressure rod and the outer sleeve are fixedly connected by a connecting spring. One end of the outer sleeve is connected to and passes through an air inlet pipe, and the other end of the outer sleeve has an exhaust hole with a diameter smaller than the inner diameter of the air inlet pipe.

[0011] The pneumatic telescopic column is located on the side of the push block away from the lower extrusion plate. There are multiple pneumatic telescopic columns on the same side, and the multiple pneumatic telescopic columns are distributed at equal intervals.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This angle-adjustable pneumatic bending machine features a push block installed at the hinge of the lower extrusion plate. A pneumatic telescopic column controls the maximum opening angle of the lower extrusion plate. A control valve is connected and passes through the air inlet, and a press-to-exhaust valve is connected and passes through the exhaust end. A pneumatic pressing end is fixedly installed above the press-to-exhaust valve. By controlling the opening time of the control valve, the amount of air intake can be controlled. By controlling the pressing duration of the press-to-exhaust valve, the amount of air exhaust can be determined, thereby achieving the effect of quickly adjusting the bending angle.

[0014] 2. This angle-adjustable pneumatic bending machine includes a pneumatic pressing end with an outer sleeve. Inside the outer sleeve, a pressure rod is slidably connected. The pressure rod contacts the pressing end of the pressing exhaust valve. The pressure rod and the outer sleeve are fixedly connected by a connecting spring. One end of the outer sleeve is connected to and has an air inlet pipe. The other end of the outer sleeve has an exhaust hole with a diameter smaller than the inner diameter of the air inlet pipe. Gas continuously enters the interior of the outer sleeve, and some gas is discharged through the exhaust hole, pushing the pressure rod downward, thereby pressing the pressing exhaust valve, pausing the gas supply, and the remaining gas is discharged from the exhaust hole. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the chassis connection of this utility model;

[0017] Figure 3 This is a schematic diagram of the outer shell connection of this utility model;

[0018] Figure 4 This is a schematic diagram of the pneumatic telescopic column connection of this utility model;

[0019] Figure 5 This is a half-sectional schematic diagram of the pneumatic telescopic column of this utility model;

[0020] Figure 6 This is a half-sectional schematic diagram of the pneumatic pressing end of this utility model.

[0021] The components are as follows: 1. Chassis; 2. Pneumatic telescopic mechanism; 3. Upper mold; 4. Lower mold; 401. Outer shell; 402. Lower extrusion plate; 403. Hinge shaft; 404. Support frame; 5. Spring column; 6. Wing plate; 7. Through hole; 405. Sleeve; 406. Piston pad; 407. Sliding rheostat; 408. Return spring; 409. Air inlet; 410. Exhaust end; 411. Press exhaust valve; 412. Pneumatic pressing end; 413. Outer shell; 414. Pressure rod; 415. Connecting spring; 416. Air inlet pipe; 417. Exhaust hole; 418. Control valve; 419. Push block; 420. Pneumatic telescopic column. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] See Figure 1-6 An angle-adjustable pneumatic bending machine includes a housing 1, a pneumatic telescopic mechanism 2 is provided above the housing 1, an upper die 3 is provided below the pneumatic telescopic mechanism 2, and a lower die 4 is provided at the extrusion end of the housing 1. The lower die 4 includes a shell 401, and lower extrusion plates 402 are symmetrically hinged in the middle of the shell 401. The two lower extrusion plates 402 are fixedly connected by a hinge shaft 403. Support frames 404 are fixedly installed on both sides of the hinge shaft 403 and are fixedly connected to the shell 401. Push blocks 419 are provided on both sides of the hinge of the two hinged lower extrusion plates 402 and below the hinge. Push blocks 419 are fixedly connected to the shell 401 by a pneumatic telescopic column 420.

[0024] A spring post 5 is fixedly installed on the extrusion end of the casing 1, and wing plates 6 are fixedly installed on both sides of the outer shell 401. The surface of the wing plate 6 is provided with through holes 7 that fit on the outer surface of the spring post 5. This arrangement can position the outer shell 401 and provide cushioning.

[0025] The pneumatic telescopic column 420 includes a sleeve 405, a piston pad 406 is slidably connected inside the sleeve 405, a sliding rheostat 407 is provided between the piston pad 406 and the sleeve 405, and the sleeve 405 and the piston pad 406 are fixedly connected by a return spring 408. The sleeve 405 is provided with an air inlet end 409 and an air outlet end 410. The sliding rheostat 407 moves together with the piston pad 406, and the resistance can be adjusted to determine the extension position of the piston pad 406.

[0026] The air inlet end 409 of the sleeve 405 is connected to and passes through a control valve 418, and the exhaust end 410 is connected to and passes through a press exhaust valve 411. A pneumatic pressing end 412 is fixedly installed above the press exhaust valve 411. By setting the control valve 418, the amount of air intake can be controlled by controlling the opening time. By setting the press exhaust valve 411, the amount of exhaust can be determined by controlling the pressing time.

[0027] The pneumatic pressing end 412 includes an outer sleeve 413. A pressure rod 414 is slidably connected inside the outer sleeve 413. The pressure rod 414 contacts the pressing end of the pressing exhaust valve 411. The pressure rod 414 and the outer sleeve 413 are fixedly connected by a connecting spring 415. One end of the outer sleeve 413 is connected to and passes through an air inlet pipe 416. The other end of the outer sleeve 413 has an exhaust hole 417 with a diameter smaller than the inner diameter of the air inlet pipe 416. Gas continuously enters the interior of the outer sleeve 413. Some gas is discharged through the exhaust hole 417 and pushes the pressure rod 414 downward, thereby pressing the pressing exhaust valve 411, pausing the gas supply, and the remaining gas is discharged from the exhaust hole 417.

[0028] The pneumatic telescopic column 420 is located on the side of the push block 419 away from the lower extrusion plate 402. There are multiple pneumatic telescopic columns 420 on the same side, and the multiple pneumatic telescopic columns 420 are distributed at equal intervals. This arrangement can ensure that the device is subjected to uniform force.

[0029] In use, a push block 419 is set at the hinge of the lower extrusion plate 402, and the maximum opening angle of the lower extrusion plate 402 is controlled by the telescopic column 420. A control valve 418 is connected and passes through the air inlet end 409, and a press exhaust valve 411 is connected and passes through the exhaust end 410. A pneumatic pressing end 412 is fixedly installed above the press exhaust valve 411. By setting the control valve 418, the amount of air intake can be controlled by controlling the opening time. By setting the press exhaust valve 411, the amount of exhaust can be determined by controlling the pressing time, thereby achieving the effect of quickly adjusting the bending angle.

[0030] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An angle-adjustable pneumatic bending machine, comprising a housing (1), characterized in that: A pneumatic telescopic mechanism (2) is provided above the chassis (1), an upper mold (3) is provided below the pneumatic telescopic mechanism (2), and a lower mold (4) is provided at the extrusion end of the chassis (1). The lower mold (4) includes a shell (401), and a lower extrusion plate (402) is symmetrically hinged in the middle of the shell (401). The two lower extrusion plates (402) are fixedly connected by a hinge shaft (403). A support frame (404) is fixedly installed on both sides of the hinge shaft (403). The support frame (404) is fixedly connected to the shell (401). Push blocks (419) are provided on both sides of the hinge of the two hinged lower extrusion plates (402) and below the hinge. The push blocks (419) are fixedly connected to the shell (401) by a pneumatic telescopic column (420).

2. The pneumatic bending machine with adjustable angle according to claim 1, characterized in that: The extrusion end of the casing (1) is fixedly installed with a spring column (5), and the two sides of the outer shell (401) are fixedly installed with wing plates (6). The surface of the wing plate (6) is provided with a through hole (7) that fits on the outer surface of the spring column (5).

3. The pneumatic bending machine with adjustable angle according to claim 1, characterized in that: The pneumatic telescopic column (420) includes a sleeve (405), a piston pad (406) is slidably connected inside the sleeve (405), a sliding rheostat (407) is provided between the piston pad (406) and the sleeve (405), and the sleeve (405) and the piston pad (406) are fixedly connected by a return spring (408). The sleeve (405) is provided with an air inlet end (409) and an air outlet end (410).

4. The pneumatic bending machine with adjustable angle according to claim 3, characterized in that: The air inlet (409) of the sleeve (405) is connected to and passes through a control valve (418), and the exhaust end (410) is connected to and passes through a press exhaust valve (411). A pneumatic pressing end (412) is fixedly installed above the press exhaust valve (411).

5. The pneumatic bending machine with adjustable angle according to claim 4, characterized in that: The pneumatic pressing end (412) includes an outer sleeve (413), and a pressure rod (414) is slidably connected inside the outer sleeve (413). The pressure rod (414) contacts the pressing end of the pressing exhaust valve (411). The pressure rod (414) and the outer sleeve (413) are fixedly connected by a connecting spring (415). One end of the outer sleeve (413) is connected to and passes through an air inlet pipe (416). The other end of the outer sleeve (413) has an exhaust hole (417) with a diameter smaller than the inner diameter of the air inlet pipe (416).

6. The pneumatic bending machine with adjustable angle according to claim 5, characterized in that: The pneumatic telescopic column (420) is located on the side of the push block (419) away from the lower extrusion plate (402). There are multiple pneumatic telescopic columns (420) on the same side, and the multiple pneumatic telescopic columns (420) are distributed at equal intervals.

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