CN221833086U - A folding machine - Google Patents

Abstract

The utility model discloses a folding machine. The utility model comprises a machine body, a workbench, a clamping mechanism, a bending mechanism and a centering mechanism are arranged on the machine body, the workbench is fixedly arranged inside the machine body, a bending knife is fixed on the feeding side and the discharging side of the workbench, the clamping mechanism is arranged on the upper part of the machine body, the clamping mechanism comprises a clamping oil cylinder, a clamping crossbeam and a pressing head, the clamping oil cylinder is arranged on the upper part of the machine body and connected with the upper part of the clamping crossbeam, the two ends of the clamping crossbeam are movably matched with the guide rails vertically fixedly arranged on the machine body, the pressing head is connected to the lower end of the clamping crossbeam, and a movable movable pressing plate is connected to the four corners of the pressing head through a pin shaft respectively, the bending mechanism comprises two flip crossbeams respectively arranged on the feeding side and the discharging side of the workbench, the two ends of the flip crossbeam are connected with the flip shaft rotatably arranged on the machine body through a rotating arm, the flip shaft is connected to the flip oil cylinder, and the centering mechanism comprises two centering blocks movably arranged on both sides of the workbench.

Description

A folding machine

Technical Field

The utility model relates to a folding machine, in particular to a folding machine used for processing panels and water tanks, belonging to the technical field of folding equipment.

Background Art

Some panels, sinks and other workpieces need to be folded twice on the four sides, so that the four sides are finally formed into a C-shaped bend.

The existing folding machine generally has two folding mechanisms arranged opposite to each other, and the folding mechanisms are generally arranged on the left and right sides of the feeding direction. In the prior art, when processing workpieces such as panels and sinks, most of them use one folding machine to fold the four sides of the workpiece blank one by one, such as the Chinese invention patent with publication number CN109175044B, or use two folding machines arranged opposite to each other to fold the four sides of the workpiece blank one by one, such as the Chinese invention patent application with publication number CN 109047398 A, which first uses the folding mechanism on one side to bend one of the sides of the workpiece, and then adjusts the workpiece position to the workpiece positioning position of the folding mechanism on the other side, uses the folding mechanism on the other side to bend the opposite side of the processed side, and then rotates the workpiece 90 degrees and then bends the other two opposite sides of the workpiece one by one. This processing method has low processing efficiency, and the workpiece needs to be positioned and adjusted in direction many times.

In order to improve production efficiency, the applicant of this application has designed a new processing method, which first uses a forming device to roll-form two opposite sides of a workpiece, and then sends the workpiece into a folding machine to bend the remaining two opposite sides. Because the two sides of the workpiece have been bent into a C shape before entering the folding machine, the existing folding machine cannot bend the remaining two sides of the workpiece. Therefore, a folding machine that can adapt to this processing method is urgently needed.

Utility Model Content

In view of the above-mentioned defects existing in the prior art, the utility model provides a new folding machine.

The utility model is realized through the following technical scheme: a folding machine, characterized in that: it includes a fuselage, a workbench, a clamping mechanism, a bending mechanism, and a centering mechanism are arranged on the fuselage, the workbench is fixedly arranged inside the fuselage, the feeding side and the discharging side of the workbench are fixed with bending knives, the clamping mechanism is arranged on the upper part of the fuselage, the clamping mechanism includes a clamping cylinder, a clamping beam, and a pressure head, the clamping beam is located above the workbench, the clamping cylinder is arranged on the upper part of the fuselage and connected to the upper part of the clamping beam, the two ends of the clamping beam are movably matched with the guide rails vertically fixedly arranged on the fuselage, and the pressure head is connected to the guide rails Connected to the lower end of the clamping beam, the four corners of the pressure head are respectively connected to a movable active pressure plate through a pin shaft, the bending mechanism includes two flip beams, the two flip beams are respectively arranged on the feed side and the discharge side of the workbench, a horizontal support frame is provided on the upper part of the flip beam, the two ends of the flip beam are connected to the flip shaft rotatably arranged on the fuselage through a rotating arm, a flip cylinder is respectively arranged at the two ends of each of the flip beams, one end of the flip cylinder is connected to the fuselage, and the other end of the flip cylinder is connected to the corresponding flip shaft, and the centering mechanism includes two centering blocks movably arranged on both sides of the workbench.

When the utility model is in operation, the workpiece whose two sides have been folded into a C-shape is fed into the workbench inside the machine body, and the workpiece is centered by the centering mechanism. The clamping mechanism drives the clamping beam to move downward by the clamping cylinder, and clamps the workpiece by the pressing head. The flipping beam of the bending mechanism on the feed side is flipped under the action of the flipping cylinder to bend the side of the workpiece on the feed side. The flipping beam of the bending mechanism on the discharge side is flipped under the action of the flipping cylinder to bend the side of the workpiece on the discharge side. The movable pressing plates arranged at the four corners of the pressing head are used to clamp the four corners of the workpiece, so that the bending mechanism can bend the workpiece. Before the workpiece enters the folding machine, its left and right sides have been folded into a C-shape, and the C-shaped folding will interfere with the pressure head. The edges of the four corners of the pressure head cannot fully contact the C-shaped inner parts of the two sides of the workpiece, and the workpiece cannot be effectively pressed. By setting movable pressing plates at the four corners, the movable pressing plates are in a downward position when the pressure head does not contact the workpiece. When the pressure head moves toward the workpiece, the movable pressing plate can be inserted into the C-shaped edge of the workpiece. After the pressure head contacts the workpiece, the movable pressing plate rotates to a horizontal position to press the edge of the workpiece. Of course, the utility model can also bend ordinary plates whose two sides are not folded into a C-shape.

Furthermore, in order to facilitate the centering of the workpiece, the two centering blocks are respectively connected with racks, and the two racks connected to the two centering blocks are meshed and connected through a gear, and one of the centering blocks is connected to a horizontally arranged cylinder. The two centering blocks of the centering mechanism can move synchronously under the action of the gear rack.

Furthermore, in order to facilitate the processing of workpieces of different sizes, the pressure head is composed of a plurality of detachable pressure plates. By replacing the pressure plates, pressure heads of different sizes can be formed, which is convenient for adapting to the processing of workpieces of different sizes.

Furthermore, in order to facilitate the processing of workpieces of different sizes, a pressure plate slideway is provided at the lower end of the clamping beam, and the pressure head includes a plurality of pressure plates, and a slider that can cooperate with the pressure plate slideway is provided at the upper end of the pressure plate, and the pressure plate is connected with the pressure plate slideway at the lower end of the clamping beam through the slider at its upper end. The pressure plate is connected with the pressure plate slideway at the lower end of the clamping beam through the slider at its upper end, and the pressure head can be conveniently assembled and assembled, and pressure heads of different sizes can be combined to facilitate the processing of workpieces of different sizes.

Furthermore, in order to ensure reliable lifting and lowering of the clamping beam, a rotatable synchronous shaft is provided on the fuselage, two synchronous gears are provided on the synchronous shaft, and a vertically arranged synchronous rack is fixed at each end of the clamping beam, and the two synchronous gears on the synchronous shaft are respectively engaged with the synchronous racks provided at both ends of the clamping beam.

Furthermore, in order to facilitate the positioning of the workpiece, the bending mechanisms on the feeding side and the discharging side are provided with workpiece positioning mechanisms, which include a positioning block and a positioning cylinder connected to the positioning block and capable of driving the positioning block to rise and fall. The positioning block can be driven to rise or fall by the positioning cylinder, and the workpiece can be positioned when the positioning block rises, and the positioning block falls when the clamping mechanism is working.

Furthermore, in order to adapt to the processing of workpieces of different specifications, the position of the positioning block of the workpiece positioning mechanism is adjustable.

The beneficial effects of the utility model are as follows: the utility model can bend the front and rear ends of ordinary plates, and is particularly suitable for bending the front and rear ends of workpieces whose two sides have been processed into a C-shape, such as processing panels, sinks and other workpieces. The utility model can effectively improve the processing efficiency and ensure reliable processing quality.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG2 is a schematic top view of FIG1 ;

FIG3 is a schematic side view of FIG1 ;

Fig. 4 is a schematic cross-sectional view of A-A in Fig. 3;

Fig. 5 is a schematic cross-sectional view of B-B in Fig. 1;

Fig. 6 is a schematic cross-sectional view of C-C in Fig. 1;

Fig. 7 is a schematic cross-sectional view of D-D in Fig. 3;

Fig. 8 is a schematic diagram of a rotation of the E-E cross-sectional view in Fig. 3;

Fig. 9 is a schematic diagram of a cross-sectional rotation view of F-F in Fig. 5;

10 is a schematic diagram of the positioning block position adjustment of the positioning mechanism;

FIG11 is a schematic diagram of the P direction in FIG1;

In the figure, 1, foot, 2, fuselage, 3, flip beam, 4, rotating arm, 5, movable pressure plate A, 6, movable pressure plate pin A, 7, movable pressure plate seat A, 8, pressure cover, 9, pressure plate, 10, movable pressure plate seat B, 11, movable pressure plate B, 12, movable pressure plate shaft B, 13, workpiece, 14, clamping beam, 15, pressure head, 16, flip cylinder, 17, flip shaft, 18, flip cylinder base, 19, hinge shaft, 20, external sliding bearing, 21, flip cylinder upper seat, 22, sliding bearing, 23, work Table, 24, screw, 25, synchronous rack, 26, synchronous shaft, 27, support frame, 28, bending knife, 29, centering block A, 30, clamping cylinder, 31, clamping cylinder seat, 32, top seat, 33, guide rail, 34, guide rail, 35, centering cylinder, 36, rack, 37, gear, 38, synchronous gear, 39, positioning block, 40, positioning shaft, 41, positioning cylinder, 42, positioning seat, 43, positioning block adjustment cylinder, 44, pressure plate slide, 45, guide rail, 46, rack, 47, centering block B.

DETAILED DESCRIPTION

The present invention is further described below by way of non-limiting embodiments and in conjunction with the accompanying drawings:

As shown in the accompanying drawings, a folding machine includes a body 2, on which a workbench 23, a pressing mechanism, a bending mechanism, and a centering mechanism are arranged. A top seat 32 is arranged on the upper part of the body 2. The workbench 23 is fixedly arranged inside the body 2, and bending knives 28 are fixed on both the feeding side and the discharging side of the workbench 23.

The clamping mechanism is arranged on the upper part of the fuselage 2, and includes two clamping cylinders 30, a clamping beam 14, and a pressure head 15. The clamping beam 14 is located above the workbench 23. The two ends of the clamping beam 14 can be movably matched with the guide rails 33 vertically fixed on the fuselage 2. The two clamping cylinders 30 are arranged on the top seat 32 on the upper part of the fuselage 2. The piston rods of the clamping cylinders 30 are connected to the clamping cylinder seat 31 through a hinge shaft, and the clamping cylinder seat 31 is connected to the upper part of the clamping beam 14. The pressure head 15 is connected to the lower end of the clamping beam 14. The pressure head 15 is used to clamp the workpiece. A movable active pressure plate is connected to the four corners of the pressure head 15 through a pin shaft. When the pressure head 15 is in a raised state and does not contact the workpiece, the movable pressure plate can be in a state of rotating downward under the action of gravity. When the two clamping oil cylinders 30 of the clamping mechanism are in motion, the clamping beam 14 can be driven to move up and down along the guide rail 33, thereby driving the pressure head 15 to move up and down. In order to ensure that both ends of the clamping beam 14 are lifted and lowered synchronously, a synchronization mechanism is also provided in this embodiment: a synchronization shaft 26 is provided on the fuselage 2, and both ends of the synchronization shaft 26 are supported on the fuselage 2 through bearings, and a synchronization gear 38 is provided on both ends of the synchronization shaft 26, and a vertical synchronization rack 25 is fixed on both ends of the clamping beam 14, and the two synchronization gears 25 on the synchronization shaft 26 are respectively meshed with the synchronization racks 25 provided at both ends of the clamping beam 14. Through the meshing transmission of the two synchronization gears 25 on the synchronization shaft 26 and the synchronization racks 25 provided at both ends of the clamping beam 14, it can be ensured that both ends of the clamping beam 14 can be lifted and lowered synchronously. The pressure head 15 in the utility model can adopt an integral structure. In order to adapt to the processing of workpieces of different specifications, it is preferred that: the pressure head 15 can be composed of a plurality of detachable pressure plates, and different pressure plates can be combined into pressure heads of corresponding specifications. In order to facilitate the assembly of the pressure head 15, the structure adopted in this embodiment is: a pressure plate slide 44 is provided at the lower end of the clamping beam 14 along its length direction, and the pressure head 15 includes a plurality of pressure plates 9, and a slider that can cooperate with the pressure plate slide 44 is provided at the upper end of the pressure plate 9. The pressure plate 9 is connected with the pressure plate slide 44 at the lower end of the clamping beam 14 through the slider at its upper end. By adopting different pressure plates, pressure heads of corresponding sizes can be combined. After each pressure plate is assembled in place, each pressure plate is fixed to the clamping beam 14 by a pressure cover 8. When the pressure head 15 adopts this structure, the pressure plates at the two ends serve as movable pressure plate seats, and the movable pressure plates are connected to the movable pressure plate seats. As shown in Figure 1, the movable pressing plate A5 is connected to the movable pressing plate seat A7 through the movable pressing plate pin A6, and the movable pressing plate B11 is connected to the movable pressing plate seat B10 through the movable pressing plate pin B12. The two movable pressing plates on the other side of the pressure head 15 are also connected to the movable pressing plate seat A7 and the movable pressing plate seat B10 through the pins.

The bending mechanism includes two flip beams 3, which are respectively arranged on the feeding side and the discharging side of the workbench 23. A horizontal support frame 27 is arranged on the upper part of the flip beam 3. The two ends of the flip beam 3 are respectively connected to the flip shaft 17 through a rotating arm 4. The flip shaft 17 is supported on the fuselage 2 through a bearing. A flip cylinder 16 is respectively arranged at the two ends of each flip beam 3. One end of the flip cylinder 16 is connected to the flip cylinder base 18 through a hinge shaft 19. The flip cylinder base 18 is fixed on the fuselage 2, and the other end of the flip cylinder 16 is connected to the corresponding flip shaft 17 through the flip cylinder upper seat. When the flip cylinder 16 is in motion, it can drive the flip beam 3 to rotate around the flip shaft 17, so that the part of the workpiece located on the upper part of the support frame 27 can be driven to bend and realize the folding edge.

The centering mechanism includes two centering blocks A29 and B47 movably arranged on both sides of the workbench 2. The two centering blocks can be moved under the action of the power mechanism to center the workpiece. In order to facilitate the synchronous movement of the two centering blocks, in this embodiment, the centering block A29 and the centering block B47 are respectively slidably matched with the guide rails 34 and 45 arranged on the machine body. The centering block A29 is connected with a rack 36, and the centering block B47 is connected with a rack 46. The rack 36 and the rack 46 are meshed and connected through a gear 37. The centering block A29 is connected to the horizontally arranged centering cylinder 35. When the centering cylinder 35 is actuated, it can drive the centering block A29 to move along the guide rail 34, and at the same time, through the meshing transmission of the gear rack, drive the centering block B47 to move at the same time, so as to realize the centering function of the workpiece.

In the utility model, the positioning of the workpiece during processing can be achieved in a variety of ways. To facilitate the positioning of the workpiece, in this embodiment, a workpiece positioning mechanism is provided at the bending mechanism on the feeding side and the discharging side, and the workpiece positioning mechanism includes a positioning block 39 and a positioning cylinder 41 connected to the positioning block 39 and capable of driving the positioning block to rise and fall. Two positioning blocks 39 and two positioning cylinders 41 are provided on each side. The positioning block 39 can be driven to rise or fall by the positioning cylinder 41. When the positioning block 39 is raised, the workpiece can be positioned, and when the clamping mechanism is working, the positioning block 39 falls.

In order to adapt to the processing of workpieces of different specifications, the position of the positioning block of the workpiece positioning mechanism described in this embodiment is set to be adjustable. The structure adopted in this embodiment is: a movable positioning seat 42 is arranged on the support frame 27 of the flip beam 3, a positioning cylinder 41 is arranged on the positioning seat 42, a positioning block 39 is rotatably connected to the positioning seat 42 through a positioning shaft 40, a positioning block adjustment cylinder 43 is arranged at the rear end of the positioning seat 42, and the piston rod of the positioning block adjustment cylinder 43 is connected to the positioning seat 42. After the position of the positioning seat 42 is adjusted, the positioning seat 42 is fixed to the support frame by a screw 24. After the screw 24 is loosened, the positioning seat 42 can be driven to move by the positioning block adjustment cylinder 43, and then the position of the positioning block 39 is adjusted to adapt to the different folding widths of the bending. Of course, the position adjustment structure of the positioning block in the utility model can also adopt other adjustment structure forms, for example, the positioning seat can be driven to move in the form of a lead screw or a servo motor + lead screw.

The folding machine of the utility model can bend the front and rear ends of ordinary plates, and can also bend the front and rear ends of workpieces whose two sides have been processed into C-shape, such as workpieces in the form of panels, sinks, etc. When the utility model is used for automated processing, a CNC feeding mechanism is configured on the feeding side and the discharging side of the folding machine. When the utility model is used to bend the front and rear ends of a workpiece whose two sides have been processed into C-shape, the workpiece 13 whose two sides have been folded into C-shape is fed into the workbench 23 inside the fuselage 2, and the two centering blocks of the centering mechanism center the workpiece 13, and the positioning block of the workpiece positioning mechanism on the side to be bent rises to position the workpiece 13, and then the positioning block of the workpiece positioning mechanism falls, and the clamping mechanism drives the clamping crossbeam 14 to move downward through the clamping oil cylinder 30, and the workpiece 13 is clamped by the pressing head 15, and at this time, the movable pressing plates arranged at the four corners of the pressing head 15 are respectively inserted into the C-shaped edges on both sides of the workpiece 13, and contact with the workpiece to clamp the edge of the workpiece. The flip crossbeam of the bending mechanism on the side to be bent is flipped under the action of the flip cylinder to bend the workpiece. If a C-shaped edge is required, the workpiece after one bending is continuously conveyed forward and positioned again, and the bending mechanism performs a second bending into a C-shape. After completing the folding process on one end, the positioning mechanism and bending mechanism on the other side are used to fold the other end of the workpiece.

When the folding size of the workpiece changes, the screw 24 of the workpiece positioning mechanism can be loosened, and the positioning seat 42 can be driven to move by the positioning block adjustment cylinder 43 to adjust the position of the positioning block 39 to meet the processing requirements.

The other parts of this embodiment are all prior art and will not be described in detail here.

Claims (7)

1. A folding machine, characterized in that: it includes a fuselage, a workbench, a clamping mechanism, a bending mechanism, and a centering mechanism are arranged on the fuselage, the workbench is fixedly arranged inside the fuselage, the feeding side and the discharging side of the workbench are fixed with bending knives, the clamping mechanism is arranged on the upper part of the fuselage, the clamping mechanism includes a clamping cylinder, a clamping beam, and a pressure head, the clamping beam is located above the workbench, the clamping cylinder is arranged on the upper part of the fuselage and connected to the upper part of the clamping beam, the two ends of the clamping beam are movably matched with the guide rails vertically fixedly arranged on the fuselage, and the pressure head is connected to the lower end of the clamping beam The four corners of the pressure head are respectively connected with a movable pressing plate through a pin shaft, the bending mechanism includes two flip beams, the two flip beams are respectively arranged on the feeding side and the discharging side of the workbench, a horizontal support frame is provided on the upper part of the flip beam, and the two ends of the flip beam are connected with the flip shaft rotatably arranged on the fuselage through a rotating arm, and a flip cylinder is respectively arranged at the two ends of each of the flip beams, one end of the flip cylinder is connected to the fuselage, and the other end of the flip cylinder is connected to the corresponding flip shaft, and the centering mechanism includes two centering blocks movably arranged on both sides of the workbench. 2. The folding machine according to claim 1 is characterized in that: the two centering blocks are respectively connected to racks, and the two racks connected to the two centering blocks are meshed and connected through a gear, and one of the centering blocks is connected to a horizontally arranged cylinder. 3. The folding machine according to claim 1 is characterized in that the pressing head is composed of a plurality of detachable pressing plates. 4. The folding machine according to claim 1, 2 or 3 is characterized in that: a pressure plate slide groove is arranged at the lower end of the clamping beam, the pressure head includes a plurality of pressure plates, a slider which can cooperate with the pressure plate slide groove is arranged at the upper end of the pressure plate, and the pressure plate is connected with the pressure plate slide groove at the lower end of the clamping beam through the slider at its upper end. 5. The folding machine according to claim 4 is characterized in that: a rotatable synchronization shaft is arranged on the machine body, two synchronization gears are arranged on the synchronization shaft, a vertically arranged synchronization rack is fixed at both ends of the clamping beam respectively, and the two synchronization gears on the synchronization shaft are respectively engaged with the synchronization racks arranged at both ends of the clamping beam. 6. The folding machine according to claim 4 is characterized in that: a workpiece positioning mechanism is provided at the bending mechanism on the feeding side and the discharging side, and the workpiece positioning mechanism includes a positioning block and a positioning cylinder connected to the positioning block and capable of driving the positioning block to rise and fall. 7. The folding machine according to claim 6, characterized in that the position of the positioning block of the workpiece positioning mechanism is adjustable.