Steel bar cutting-off equipment for electric sofa bed production

Abstract

The invention relates to the technical field of metal pressure machining equipment, and discloses an electric sofa bed production reinforcing steel bar cutting-off device which comprises a large bottom plate, a vertical plate, a motor, a rotating wheel compression mechanism, a force increasing mechanism and a variable-diameter clamping mechanism, rapid self-adaptive clamping of reinforcing steel bars with different diameters is achieved, a center rotating wheel can be driven to rotate only by rotating a screw rod, and the rotating wheel can be driven to rotate only by rotating the screw rod. The large rotating plate is accurately controlled to synchronously retract and release through the limiting frame, so that the clamping wheel always and uniformly holds the reinforcing steel bar in the radial direction, the eccentric problem caused by single-side clamping is eliminated, the stability of the reinforcing steel bar during cutting can be effectively ensured through full-circumferential uniform clamping, and the unevenness of a cutting surface and abnormal abrasion of a cutter caused by sliding are avoided; the safety and reliability of the equipment are greatly improved, the tedious process that bolts need to be repeatedly loosened for manual alignment and re-locking in traditional baffle positioning can be overcome through a full-mechanical adjusting mode, the switching efficiency of steel bars of different specifications is greatly improved, and the equipment is suitable for the machining requirements of multi-specification and small-batch high-strength steel bars in the furniture manufacturing industry.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal pressure processing equipment, more particularly to a steel bar cutting equipment for electric sofa bed production. BACKGROUND

[0002] The ordinary mechanical cutting machine is a common device in steel bar processing, and its core feature is to convert the rotary motion of the motor into the linear shearing motion of the blade through pure mechanical transmission such as gears, crankshafts, levers, etc. The high-speed rotation of the motor is finally driven by a crankshaft or eccentric wheel through a belt and gear system, and the rotary motion of the crankshaft is converted into the up-down reciprocating linear motion of the moving blade through a connecting rod, thereby realizing shearing. The existing steel bar cutting machine generally relies on hydraulic transmission for its force amplification system, which has the risk of hydraulic oil leakage, increases the cost of regular replacement and sealing maintenance, and has a low energy conversion efficiency. At the same time, it is prone to problems such as oil temperature rise and performance degradation during continuous high-load operation, resulting in unstable output force. In terms of clamping and positioning, traditional equipment often uses baffles or clamps, which are time-consuming and tedious to adjust. The process requires manual repeated movement of the stop block and re-fixing, which not only greatly affects the positioning accuracy due to human factors, but also makes it difficult to quickly adapt to the alternating production needs of multiple specifications of steel bars. Moreover, the clamping structure has poor adaptability to steel bars of different diameters, resulting in sliding or end face pressure damage during cutting due to uneven clamping force, especially for high-strength threaded steel, which affects the cutting quality and efficiency. SUMMARY

[0003] In order to overcome the above-mentioned defects of the prior art, the present application provides a steel bar cutting equipment for electric sofa bed production to solve the problems in the background art.

[0004] The present application provides the following technical solution: a steel bar cutting equipment for electric sofa bed production, comprising a large base plate, a vertical plate and a motor, the top center of the large base plate is fixedly connected with the vertical plate, the front end of the vertical plate near the top is fixedly connected with the motor, the front end of the vertical plate and the bottom of the motor are fixedly connected with a rotating wheel compression mechanism, the front end of the vertical plate and one side of the rotating wheel compression mechanism are fixedly connected with a force amplification mechanism, the side near the bottom of the front end of the vertical plate and the top of the large base plate are fixedly connected with an auxiliary plate, and the top of the large base plate and the two sides of the vertical plate near the auxiliary plate are fixedly connected with a variable-diameter clamping mechanism. Further, the device drives the rotating wheel compression mechanism to convert rotation into up-down displacement by starting the motor, and then amplifies the vertical force received by the force amplification mechanism, so as to cut the steel bar fixed by the variable-diameter clamping mechanism.

[0005] Further, the runner compression mechanism comprises a fixed frame fixed at the bottom of the motor and the front end of the vertical plate close to the top side, the bottom of the motor and the inner side of the fixed frame are fixedly connected with a gear block, the bottom of the gear block is fixedly connected with a gear bottom plate, the bottom of the gear bottom plate is fixedly connected with a rotating shaft, the bottom of the gear bottom plate and the front end of the vertical plate are fixedly connected with a fixed long plate one, the bottom of the fixed long plate one and the front end of the vertical plate are fixedly connected with a gear rotating mechanism, the outer side of the rotating shaft close to the position of the gear rotating mechanism is fixedly connected with a special-shaped cylinder, the bottom of the special-shaped cylinder is fixedly connected with a fixed bottom wheel, the bottom of the rotating shaft and the front end of the vertical plate are fixedly connected with a fixed long plate two.

[0006] Further, the gear rotating mechanism comprises a fixed block fixedly connected at the front end of the vertical plate and close to the rotating shaft, a hard long plate is rotatably connected on the fixed block, one end of the hard long plate close to the rotating shaft is rotatably connected with a small round wheel.

[0007] Further, after the motor is turned on, the gear block, the gear bottom plate and the rotating shaft fixedly connected below the motor will rotate synchronously, the bottom of the rotating shaft is fixedly connected with a special-shaped cylinder, the top of the special-shaped cylinder is clamped with a small round wheel, when the small round wheel rotates, the special top shape design will lift the small round wheel to different heights, and at the same time drive the hard long plate to rotate around the fixed block.

[0008] Further, the force amplification mechanism comprises a rotating wheel rotatably connected on the side of the hard long plate away from the rotating shaft, a central shaft is rotatably connected on the side of the rotating wheel close to the vertical plate, the end of the outer side of the central shaft close to the top and the front end of the vertical plate are fixedly connected with a fixed round wheel, the outer side of the central shaft and the front end of the vertical plate are fixedly connected with a fixed short plate one, the bottom of the fixed short plate one is fixedly connected with long cylinders on both sides, the outer side of the middle of the long cylinders is fixedly connected with a central block, the bottom of the fixed short plate one and the inner side of the long cylinders are rotatably connected with a multi-stroke mechanism, the bottom of the multi-stroke mechanism is fixedly connected with a fixed short plate two, and the bottom of the fixed short plate two is fixedly connected with a cutter.

[0009] Further, the multi-stroke mechanism comprises a rotating plate one rotatably connected on the bottom of the fixed short plate one and the inner side of the long cylinders, the bottom of the central shaft is fixedly connected with a stationary block, the bottom of the rotating plate one and the outer side of the stationary block are rotatably connected with a rotating plate two, the bottom of the rotating plate one and the top of the rotating plate two are rotatably connected with a rotating plate three, and the bottom of the rotating plate three and the top of the fixed short plate two are provided with a fixed base.

[0010] Further, when the hard long plate rotates around the fixed block, the end close to the fixed circular wheel moves downward, and the center shaft and the fixed block at the bottom of the center shaft are synchronously moved downward, the rotating plate II connected to the fixed block moves downward until the end of the rotating plate II reaches the center block, which marks that the center shaft moves to the limit position, that is, the fixed short plate II and the cutter below it also cut the steel bar that extends to the limit position, and the cutting force to the steel bar reaches the maximum degree, in the low stroke mode of the hard long plate, the motion trajectory is vertical downward, which reduces the horizontal component loss, and through the multi-stroke mode of the rotating plate I, the rotating plate II and the rotating plate III, the stroke height is shortened, the system energy is more concentrated in the vertical shearing direction, and the actual output force of the cutter is improved.

[0011] Further, the variable-diameter clamping mechanism comprises a bottom plate circular wheel fixedly connected to the top of the large bottom plate and close to the position of the auxiliary plate, the inner ring of the bottom plate circular wheel is rotationally connected with a center rotating wheel, the front side of the center rotating wheel is uniformly distributed with auxiliary blocks in the circumferential direction, the front end of the auxiliary block is fixedly connected with an outer circular wheel, the front end of the bottom plate circular wheel is rotationally connected with a large rotating plate close to the circumferential outside of the center rotating wheel, the other end of the large rotating plate is rotationally connected with a clamping wheel, the outside of the large rotating plate and the back side of the outer circular wheel are rotationally connected with a limiting frame, the top end of the outside of the center rotating wheel is fixedly connected with a fixed bottom plate I, the front end of the bottom plate circular wheel is fixedly connected with a fixed bottom plate II close to the position of the center rotating wheel, the front end of the fixed bottom plate II is rotationally connected with a rotating block II, the front end of the fixed bottom plate I is rotationally connected with a rotating block I, the inside of the rotating block I and the rotating block II is rotationally connected with a threaded rod, and the end close to the fixed bottom plate II and the side of the rotating block II of the threaded rod is provided with a rotating screw rod.

[0012] Further, the fixed bottom plate I is fixedly connected to the center rotating wheel, when the rotating screw rod is adjusted, the threaded rod drives the center rotating wheel to rotate through the thread, when the center rotating wheel rotates clockwise, that is, the fixed bottom plate I moves towards the fixed bottom plate II, the center rotating wheel drives the limiting frame rotationally connected thereto to synchronously rotate, the limiting frame limits the large rotating plate to rotate in a specific direction, that is, the clamping wheel moves away from the center to prepare to accommodate steel bars of different sizes, after the steel bar is smoothly clamped into the variable-diameter clamping mechanism, the rotating screw rod is reversely rotated, when the center rotating wheel rotates counterclockwise, that is, the fixed bottom plate I moves away from the fixed bottom plate II, the center rotating wheel drives the limiting frame rotationally connected thereto to synchronously rotate, the limiting frame limits the large rotating plate to rotate in a specific direction, that is, the clamping wheel moves close to the center until it can stably clamp the steel bar.

[0013] Technical effects and advantages of the present application: 1. The present application is provided with a force amplification mechanism, which efficiently converts the limited vertical displacement input by the motor through the rotating wheel compression mechanism by the lever combination of the multi-stroke mechanism, converts the small stroke and high frequency mechanical movement into large tonnage and short stroke explosive shear force, and forms a rigid fulcrum through the center block of the rotating plate two, cooperates with the guiding effect of the rotating plate three, highly focuses the energy on the vertical downward path of the cutting knife, amplifies the motor output force, so that the ordinary low-power motor can also cut off the threaded steel cleanly at one time, the cross section is flat and has no burr, and the problems of high energy consumption, large noise and environmental pollution caused by the hydraulic system are avoided.

[0014] 2. The present application is provided with a variable diameter clamping mechanism, which realizes rapid self-adaptive clamping of different diameter steel bars through the linkage of threaded rod and center rotating wheel, only needs to rotate the screw rod to drive the center rotating wheel to rotate, and then accurately controls the synchronous expansion and contraction of the large rotating plate through the limiting frame, so that the clamping wheel always uniformly clamps the steel bar from the radial direction, eliminates the eccentric problem caused by unilateral clamping, uniformly clamps in the whole circumference, which can effectively ensure the stability of the steel bar during cutting, avoid the uneven cutting surface and abnormal wear of the cutting knife caused by sliding, greatly improve the safety and reliability of the equipment, and the full mechanical adjustment mode can overcome the cumbersome process of repeatedly loosening the bolts, manual alignment and relocking of the traditional baffle positioning, can greatly improve the switching efficiency of different specifications of steel bars, and is suitable for the processing demand of multi-specification and small-batch high-strength steel bars in furniture manufacturing industry. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic diagram of the present application.

[0016] Figure 2 It is the overall structure side view schematic diagram of the present application.

[0017] Figure 3 It is the rotating wheel compression mechanism structure schematic diagram of the present application.

[0018] Figure 4 It is the gear rotating mechanism structure schematic diagram of the present application.

[0019] Figure 5 It is the force amplification mechanism structure schematic diagram of the present application.

[0020] Figure 6 It is the variable diameter clamping mechanism structure schematic diagram of the present application.

[0021] The reference signs are: 1, bottom plate; 2, vertical plate; 3, motor; 4, rotating wheel compression mechanism; 41, fixed frame; 42, gear block; 43, gear bottom plate; 44, fixed long plate one; 45, gear rotating mechanism; 451, hard long plate; 452, fixed block; 453, small round wheel; 46, special-shaped cylinder; 47, fixed bottom wheel; 48, fixed long plate two; 49, rotating shaft; 5, force amplification mechanism; 51, fixed round wheel; 52, central shaft; 53, rotating wheel; 54, fixed short plate one; 55, central block; 56, fixed short plate two; 57, cutter; 58, long cylinder; 59, multi-stroke mechanism; 591, rotating plate one; 592, fixed base; 593, rotating plate two; 594, stationary block; 595, rotating plate three; 6, variable-diameter clamping mechanism; 61, bottom plate round wheel; 611, central rotating wheel; 62, outer layer round wheel; 63, auxiliary block; 64, large rotating plate; 65, limiting frame; 66, clamping wheel; 67, fixed bottom plate one; 671, rotating block one; 68, fixed bottom plate two; 681, rotating block two; 69, threaded rod; 691, rotating screw; 7, auxiliary plate. DETAILED DESCRIPTION

[0022] The technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application. In addition, the forms of each structure described in the following embodiments are only examples. The steel cutting device for producing electric sofa bed involved in the present application is not limited to each structure described in the following embodiments. All other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0023] Referring to Figure 1 and Figure 2 , the present application provides a steel cutting device for producing electric sofa bed, which comprises a large bottom plate 1, a vertical plate 2 and a motor 3. The top center of the large bottom plate 1 is fixedly connected with the vertical plate 2. The front end of the vertical plate 2 is fixedly connected with the motor 3 near the top. The front end of the vertical plate 2 and the bottom of the motor 3 are fixedly connected with the rotating wheel compression mechanism 4. The front end of the vertical plate 2 and one side of the rotating wheel compression mechanism 4 are fixedly connected with the force amplification mechanism 5. The front end of the vertical plate 2 near the bottom and one side is fixedly connected with the auxiliary plate 7. The top of the large bottom plate 1 and the two sides of the vertical plate 2 near the auxiliary plate 7 are fixedly connected with the variable-diameter clamping mechanism 6. Referring to Figure 1 and Figure 2 , the device is started by the motor 3 to drive the rotating wheel compression mechanism 4 to convert rotation into up-down displacement, and then the vertical force received by the force amplification mechanism 5 is amplified by the force amplification mechanism 5, so that the steel fixed by the variable-diameter clamping mechanism 6 can be cut off.

[0024] Referring to Figure 3The rotating wheel compression mechanism 4 comprises a fixed frame 41 fixed at the bottom of the motor 3 and the front end of the vertical plate 2 close to the top side, the bottom of the motor 3 and the inner side of the fixed frame 41 are fixedly connected with a gear block 42, the bottom of the gear block 42 is fixedly connected with a gear bottom plate 43, the bottom of the gear bottom plate 43 is fixedly connected with a rotating shaft 49, the bottom of the gear bottom plate 43 and the front end of the vertical plate 2 are fixedly connected with a fixed long plate one 44, the bottom of the fixed long plate one 44 and the front end of the vertical plate 2 are fixedly connected with a gear rotating mechanism 45, the outer side of the rotating shaft 49 close to the position of the gear rotating mechanism 45 is fixedly connected with a special-shaped cylinder 46, the bottom of the special-shaped cylinder 46 is fixedly connected with a fixed bottom wheel 47, and the bottom of the rotating shaft 49 and the front end of the vertical plate 2 are fixedly connected with a fixed long plate two 48.

[0025] With reference to Figure 4 The gear rotating mechanism 45 comprises a fixed block 452 fixedly connected at the front end of the vertical plate 2 and close to the rotating shaft 49, and a hard long plate 451 rotatably connected on the fixed block 452, and a small round wheel 453 rotatably connected at one end of the hard long plate 451 close to the rotating shaft 49.

[0026] With reference to Figure 3 And Figure 4 When the motor 3 is turned on, the gear block 42, the gear bottom plate 43 and the rotating shaft 49 fixedly connected below are synchronously rotated, the bottom of the rotating shaft 49 is fixedly connected with the special-shaped cylinder 46, the top of the special-shaped cylinder 46 is clamped with the small round wheel 453, when the rotating shaft 49 is rotated, the special top shape design will lift the small round wheel 453 to different heights, and at the same time drive the hard long plate 451 to rotate around the fixed block 452.

[0027] With reference to Figure 5 The force amplification mechanism 5 comprises a rotating wheel 53 rotatably connected on the side of the hard long plate 451 away from the rotating shaft 49, the side of the rotating wheel 53 close to the vertical plate 2 is rotatably connected with a central shaft 52, one end of the outer side of the central shaft 52 close to the top and the front end of the vertical plate 2 are fixedly connected with a fixed round wheel 51, the outer side of the central shaft 52 and the front end of the vertical plate 2 are fixedly connected with a fixed short plate one 54, the bottom of the fixed short plate one 54 is fixedly connected with long cylinders 58 on both sides, the outer side of the long cylinders 58 is fixedly connected with a central block 55 in the middle, the bottom of the fixed short plate one 54 and the inner side of the long cylinders 58 are rotatably connected with a multi-stroke mechanism 59, the bottom of the multi-stroke mechanism 59 is fixedly connected with a fixed short plate two 56, and the bottom of the fixed short plate two 56 is fixedly connected with a cutter 57.

[0028] With reference to Figure 5The multi-stroke mechanism 59 comprises a rotating plate 1 591 rotatably connected to the bottom of the fixed short plate 1 54 and the inner side of the long cylinder 58, the bottom of the central shaft 52 is fixedly connected with a fixed block 594, the bottom of the rotating plate 1 591 and the outer side of the fixed block 594 are rotatably connected with a rotating plate 2 593, the bottom of the rotating plate 1 591 and the top of the rotating plate 2 593 are rotatably connected with a rotating plate 3 595, and the bottom of the rotating plate 3 595 and the top of the fixed short plate 2 56 are provided with a fixed base 592.

[0029] With reference to Figure 5 When the hard long plate 451 rotates around the fixed block 452, the end close to the fixed circular wheel 51 moves downward, and the central shaft 52 and the fixed block 594 fixedly connected to the bottom of the central shaft 52 synchronously move downward, the rotating plate 2 593 rotatably connected to the fixed block 594 moves downward until the end of the rotating plate 2 593 abuts against the central block 55, which indicates that the central shaft 52 moves to the limit position, and the fixed short plate 2 56 and the cutter 57 below the fixed short plate 2 56 also cut to the limit position, so that the cutting force applied to the steel bar reaches the maximum degree. In the low stroke mode of the hard long plate 451, the movement track is vertical downward pressing, which reduces the horizontal component loss, and through the multi-stroke mode of the rotating plate 1 591, the rotating plate 2 593 and the rotating plate 3 595, the stroke height is shortened, the system energy is more concentrated in the vertical cutting direction, and the actual output force of the cutter 57 is improved.

[0030] With reference to Figure 6 The variable-diameter clamping mechanism 6 comprises a bottom plate circular wheel 61 fixedly connected to the top of the large bottom plate 1 and close to the position of the auxiliary plate 7, the inner circle of the bottom plate circular wheel 61 is rotatably connected with a central rotating wheel 611, the front side of the central rotating wheel 611 is uniformly distributed with auxiliary blocks 63, the front end of the auxiliary block 63 is fixedly connected with an outer circular wheel 62, the front end of the bottom plate circular wheel 61 is rotatably connected with a large rotating plate 64 close to the circumferential outer side of the central rotating wheel 611, the other end of the large rotating plate 64 is rotatably connected with a clamping wheel 66, the outer side of the large rotating plate 64 and the rear side of the outer circular wheel 62 are rotatably connected with a limiting frame 65, the outer side top end of the central rotating wheel 611 is fixedly connected with a fixed bottom plate 1 67, the front end of the bottom plate circular wheel 61 is fixedly connected with a fixed bottom plate 2 68 close to the position of the central rotating wheel 611, the front end of the fixed bottom plate 2 68 is rotatably connected with a rotating block 2 681, the front end of the fixed bottom plate 1 67 is rotatably connected with a rotating block 1 671, the inside of the rotating block 1 671 and the rotating block 2 681 is rotatably connected with a threaded rod 69, and the end of the threaded rod 69 close to the fixed bottom plate 2 68 and one side of the rotating block 2 681 are provided with a rotating screw 691.

[0031] With reference to Figure 6, fixed bottom plate one 67 is fixedly connected on the center rotating wheel 611, when the rotating screw 691 is adjusted, the threaded rod 69 drives the center rotating wheel 611 to rotate through the thread, when the center rotating wheel 611 rotates clockwise, i.e. the fixed bottom plate one 67 moves towards the fixed bottom plate two 68, the center rotating wheel 611 will drive the limit frame 65 rotatingly connected thereon to rotate synchronously, the limit frame 65 will limit the large rotating plate 64 to rotate in a specific direction, i.e. the clamping wheel 66 will move away from the center to prepare to accommodate different sizes of steel bars, after the steel bar is smoothly clamped into the variable-diameter clamping mechanism 6, the rotating screw 691 is reversely rotated, when the center rotating wheel 611 rotates counterclockwise, i.e. the fixed bottom plate one 67 moves away from the fixed bottom plate two 68, the center rotating wheel 611 will drive the limit frame 65 rotatingly connected thereon to rotate synchronously, the limit frame 65 will limit the large rotating plate 64 to rotate in a specific direction, i.e. the clamping wheel 66 will move towards the center until it can stably clamp the steel bar.

[0032] The working principle of the present application: the device is started by the motor 3, which drives the rotating wheel compression mechanism 4 to convert rotation into up-down displacement, and then the vertical force received is amplified by the force amplification mechanism 5, so that the steel bar fixed by the variable-diameter clamping mechanism 6 can be cut off. After the motor 3 is started, the gear block 42, gear bottom plate 43 and rotating shaft 49 fixedly connected below it will rotate synchronously, the bottom of the rotating shaft 49 is fixedly connected with a special-shaped cylinder 46, the top of the special-shaped cylinder 46 is clamped with a small round wheel 453, when it rotates, the special top shape design will lift the small round wheel 453 to different heights, at the same time, the hard long plate 451 is driven to rotate around the fixed block 452, when the hard long plate 451 rotates around the fixed block 452, the end close to the fixed round wheel 51 moves downward, the center shaft 52 and the immobile block 594 fixedly connected at the bottom of the center shaft 52 move downward synchronously, the rotating plate two 593 rotatably connected on the immobile block 594 moves downward until the end of the rotating plate two 593 reaches the center block 55, which marks that the center shaft 52 moves to the limit position, and the fixed short plate two 56 and the cutter 57 below it also cut to the limit position, the cutting force to the steel bar reaches the maximum degree, in the low stroke mode of the hard long plate 451, the motion trajectory is vertical downward, which reduces the horizontal component loss, and then through the multi-stroke mode of the rotating plate one 591, the rotating plate two 593 and the rotating plate three 595, the system energy is more concentrated in the vertical cutting direction, which improves the actual output force of the cutter 57, the fixed bottom plate one 67 is fixedly connected on the center rotating wheel 611, when the rotating screw 691 is adjusted, the threaded rod 69 limits the fixed bottom plate one 67 to drive the center rotating wheel 611 to rotate, when the center rotating wheel 611 rotates clockwise, i.e. the fixed bottom plate one 67 moves towards the fixed bottom plate two 68, the center rotating wheel 611 will drive the limiting frame 65 rotatably connected thereon to rotate synchronously, the limiting frame 65 limits the large rotating plate 64 to rotate in a specific direction, i.e. the clamping wheel 66 moves away from the center, which prepares to accommodate steel bars of different sizes, when the steel bar is successfully clamped inside the variable-diameter clamping mechanism 6, the rotating screw 691 is rotated in the opposite direction, when the center rotating wheel 611 rotates counterclockwise, i.e. the fixed bottom plate one 67 moves away from the fixed bottom plate two 68, the center rotating wheel 611 will drive the limiting frame 65 rotatably connected thereon to rotate synchronously, the limiting frame 65 limits the large rotating plate 64 to rotate in a specific direction, i.e. the clamping wheel 66 moves towards the center, until it can stably clamp the steel bar, until the cutter 57 completes the pressure cutting action.

[0033] Finally: the above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A steel bar cutting device for producing electric sofa beds, comprising a base plate (1), a vertical plate (2), and a motor (3), characterized in that: A vertical plate (2) is fixedly connected to the top center of the large base plate (1). A motor (3) is fixedly connected to the front end of the vertical plate (2) near the top. A rotary compression mechanism (4) is fixedly connected to the front end of the vertical plate (2) and the bottom of the motor (3). A force-increasing mechanism (5) is fixedly connected to the front end of the vertical plate (2) and one side of the rotary compression mechanism (4). An auxiliary plate (7) is fixedly connected to the front end of the vertical plate (2) near the bottom and the top of the large base plate (1). A variable diameter clamping mechanism (6) is fixedly connected to the top of the large base plate (1) and both sides of the vertical plate (2) near the auxiliary plate (7). The motor (3) starts working, driving the rotary compression mechanism (4) to convert the rotation into vertical displacement, and then through the force amplification mechanism (5), the vertical force is amplified, thereby cutting the steel bar fixed by the diameter-changing clamping mechanism (6).

2. The steel bar cutting equipment for producing electric sofa beds according to claim 1, characterized in that: The rotary compression mechanism (4) includes a fixed frame (41) fixed to the bottom of the motor (3) and the front end of the upright plate (2) near the top. A gear block (42) is fixedly connected to the bottom of the motor (3) and the inner side of the fixed frame (41). A gear base plate (43) is fixedly connected to the bottom of the gear block (42). A rotating shaft (49) is fixedly connected to the bottom of the gear base plate (43).

3. The steel bar cutting equipment for producing electric sofa beds according to claim 2, characterized in that: A fixed long plate (44) is fixedly connected to the bottom of the gear base plate (43) and the front end of the upright plate (2). A gear rotating mechanism (45) is fixedly connected to the bottom of the fixed long plate (44) and the front end of the upright plate (2). A shaped cylinder (46) is fixedly connected to the outer side of the rotating shaft (49) near the gear rotating mechanism (45). A fixed bottom wheel (47) is fixedly connected to the bottom of the shaped cylinder (46). A fixed long plate (48) is fixedly connected to the bottom of the rotating shaft (49) and the front end of the upright plate (2).

4. The steel bar cutting equipment for producing electric sofa beds according to claim 3, characterized in that: The gear rotation mechanism (45) includes a fixed block (452) fixedly connected to the front end of the upright plate (2) and near the rotating shaft (49). A rigid long plate (451) is rotatably connected to the fixed block (452), and a small wheel (453) is rotatably connected to one end of the rigid long plate (451) near the rotating shaft (49).

5. The steel bar cutting equipment for producing electric sofa beds according to claim 4, characterized in that: The force-enhancing mechanism (5) includes a rotating wheel (53) rotatably connected to the side of the rigid long plate (451) away from the rotating shaft (49). The rotating wheel (53) is rotatably connected to a central shaft (52) on the side near the vertical plate (2). A fixed wheel (51) is fixedly connected to the outer end of the central shaft (52) near the top and the front end of the vertical plate (2). A fixed short plate (54) is fixedly connected to the outer side of the central shaft (52) and the front end of the vertical plate (2).

6. The steel bar cutting equipment for producing electric sofa beds according to claim 5, characterized in that: The bottom of the first fixed short plate (54) is fixedly connected to two long cylinders (58), and a center block (55) is fixedly connected to the middle of the outer side of the long cylinder (58). The bottom of the first fixed short plate (54) and the inner side of the long cylinder (58) are rotatably connected to a multi-stroke mechanism (59). The bottom of the multi-stroke mechanism (59) is fixedly connected to a second fixed short plate (56), and the bottom of the second fixed short plate (56) is fixedly connected to a cutter (57).

7. The steel bar cutting equipment for producing electric sofa beds according to claim 6, characterized in that: The multi-stroke mechanism (59) includes a rotating plate (591) rotatably connected to the bottom of the fixed short plate (54) and the inner side of the long cylinder (58), a stationary block (594) fixedly connected to the bottom of the central shaft (52), a rotating plate (593) rotatably connected to the bottom of the rotating plate (591) and the outer side of the stationary block (594), a rotating plate (595) rotatably connected to the bottom of the rotating plate (591) and the top of the rotating plate (593), and a fixed base (592) provided at the bottom of the rotating plate (595) and the top of the fixed short plate (56).

8. The steel bar cutting equipment for producing electric sofa beds according to claim 1, characterized in that: The variable diameter clamping mechanism (6) includes a base plate wheel (61) fixedly connected to the top of the base plate (1) and near the auxiliary plate (7), and the inner ring of the base plate wheel (61) is rotatably connected to a central rotating wheel (611).

9. A steel bar cutting device for producing electric sofa beds according to claim 8, characterized in that: Auxiliary blocks (63) are evenly distributed around the front circumference of the central rotating wheel (611). An outer wheel (62) is fixedly connected to the front end of the auxiliary block (63). A large rotating plate (64) is rotatably connected to the front end of the base plate wheel (61) near the outer circumference of the central rotating wheel (611). A clamping wheel (66) is rotatably connected to the other end of the large rotating plate (64). A limit frame (65) is rotatably connected to the outer side of the large rotating plate (64) and the rear side of the outer wheel (62). A fixed base plate one (67) is fixedly connected to the top outer side of the central rotating wheel (611). A fixed base plate two (68) is fixedly connected to the front end of the base plate wheel (61) near the central rotating wheel (611).

10. A steel bar cutting device for producing electric sofa beds according to claim 9, characterized in that: The front end of the fixed base plate 2 (68) is rotatably connected to the rotating block 2 (681), and the front end of the fixed base plate 1 (67) is rotatably connected to the rotating block 1 (671). The rotating block 1 (671) and the rotating block 2 (681) are rotatably connected to the threaded rod (69). The threaded rod (69) is provided with a rotating screw (691) at one end near the fixed base plate 2 (68) and one side of the rotating block 2 (681).

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