Automatic steel bar cutting machine

Abstract

The present invention discloses an automatic steel bar cutting machine, which includes a movable material rack mechanism, a magnetic adsorption feeding mechanism, an automatic cutting mechanism, a conveying roller assembly, a plurality of waste boxes and a movable material receiving mechanism. The magnetic adsorption feeding mechanism is arranged above the movable material rack mechanism, the automatic cutting mechanism is arranged on one side of the magnetic adsorption feeding mechanism, the movable material receiving mechanism is arranged on one side of the automatic cutting mechanism, the conveying roller assembly is arranged between the automatic cutting mechanism and the movable material receiving mechanism, and the waste boxes are arranged below the automatic cutting mechanism; continuous and uninterrupted magnetic adsorption feeding and cutting are carried out, with high production efficiency, short time consumption, cuttable at a set length, more flexible and convenient to use without restrictions, automatic feeding without manual handling, low labor intensity, low labor cost, small safety hazards, both tail materials and waste materials can be used and automatically classified, high material utilization rate, automatic counting with low error rate and high accuracy, optimal cutting of finished materials, less material waste, and can effectively meet the production and on-site use requirements.

Description

Technical Field

[0001] The present invention belongs to the field of industrial equipment, and particularly relates to an automatic steel bar cutting machine with high operating efficiency, capable of rapid classification, and high degree of automation. Background Art

[0002] Steel bars are purchased from the manufacturer as a whole long section. To meet different usage requirements, long steel bars need to be cut into short steel bars of various lengths. At present, the cutting of long steel bars generally adopts the method of using a crane to lift the materials. Each time, only a very small number of steel bars can be lifted, and it is necessary to wait until the steel bars are cut before re-lifting the materials. Each time, only one length can be cut. After cutting, manual handling is required for unloading. This traditional method of cutting steel bars by using a crane to lift the materials can meet certain usage requirements, but the number of materials lifted each time is small, and it is necessary to wait until the cutting is completed before re-lifting the materials, resulting in low production efficiency, long time consumption, being able to cut only one length, limited use, inflexible and inconvenient, large labor intensity for manual handling and unloading, high labor cost, easy to be bruised or scratched, with relatively large potential safety hazards, the generated tail materials and waste materials being unusable, low material utilization rate, unable to automatically classify waste materials and good materials, the quantity of the cut materials needing to be manually counted, easy to make mistakes and with low accuracy, unable to optimally cut the finished materials, large material waste, and unable to effectively meet the production and on-site usage requirements.

[0003] The technical problem to be solved by the present invention is to provide an automatic steel bar cutting machine that can continuously and uninterruptedly magnetically absorb and feed materials for cutting, has high production efficiency, short time consumption, can cut at a set length, has unrestricted use, is more flexible and convenient, can automatically unload materials without manual handling, has low labor intensity, low labor cost, small potential safety hazards, can use both tail materials and waste materials and automatically classify them, has high material utilization rate, can automatically count without easy mistakes and with high accuracy, can optimally cut the finished materials, has less material waste, and can effectively meet the production and on-site usage requirements. Summary of the Invention

[0004] To solve the above problems of the prior art, such as small number of materials lifted each time, needing to wait until the cutting is completed before re-lifting the materials, low production efficiency, long time consumption, being able to cut only one length, limited use, inflexible and inconvenient, large labor intensity for manual handling and unloading, high labor cost, easy to be bruised or scratched, relatively large potential safety hazards, unusable tail materials and waste materials, low material utilization rate, unable to automatically classify waste materials and good materials, the quantity of the cut materials needing to be manually counted, easy to make mistakes and with low accuracy, unable to optimally cut the finished materials, large material waste, and unable to effectively meet the production and on-site usage requirements, the present invention adopts the following technical solutions:

[0005] The present invention provides an automatic steel bar cutting machine, which includes a movable material rack mechanism, a magnetic suction feeding mechanism, an automatic cutting mechanism, a conveying roller assembly, a plurality of waste boxes, and a movable material receiving mechanism. The magnetic suction feeding mechanism is arranged above the movable material rack mechanism. The automatic cutting mechanism is arranged on one side of the magnetic suction feeding mechanism. The movable material receiving mechanism is arranged on one side of the automatic cutting mechanism. The conveying roller assembly is arranged between the automatic cutting mechanism and the movable material receiving mechanism. The waste boxes are arranged below the automatic cutting mechanism.

[0006] Preferably, the movable material rack mechanism includes a bottom support frame, an upper material rack, a set of material rack linear guide rails, a servo motor, a gear, and a rack. The set of linear guide rails is arranged on both sides of the bottom support frame. The rack is installed in the middle of the bottom support frame. The bottom of the upper material rack is slidably arranged on the material rack linear guide rails on both sides of the bottom support frame through sliders. The top of the servo motor is hung on the feeding material rack. The gear is sleeved on the output shaft of the servo motor and meshes with the rack for transmission.

[0007] Preferably, the magnetic suction feeding mechanism includes a vertical feeding component, a counting component, and a pressing component. The counting component is arranged at the rear side of the vertical feeding component. The pressing component is arranged at the rear upper side of the vertical feeding component. The vertical feeding component includes a suction magnet, a suction driving oil cylinder, a pair of suction positioning magnets, and a suction support. The suction driving oil cylinder is arranged on the suction support. The suction magnet is arranged at the end of the oil rod of the suction driving oil cylinder. The pair of suction positioning magnets are symmetrically arranged at the bottom of both sides of the suction support. A suction stroke switch is arranged on the side of the suction magnet.

[0008] Preferably, the counting component includes a counting driving oil cylinder, a counting magnet, a counting linear guide rail, a counting mounting plate, a counting stroke switch, a baffle folding plate, and a set of vertically arranged discharging rollers. The counting driving oil cylinder is arranged on the counting mounting plate. The counting linear guide rail is arranged on one side wall of the counting mounting plate. The side of the counting magnet is slidably arranged on the counting linear guide rail through a slider and is connected to the oil rod of the counting driving oil cylinder at the bottom. The counting stroke switch is installed on the side of the counting magnet. The baffle folding plate and the discharging rollers are respectively arranged at the front end of the counting mounting plate.

[0009] Preferably, the pressing component includes a pressing mounting plate, a set of material receiving pull rods, a pressing oil cylinder, a pressing magnet, a pulling-back oil cylinder, a set of lifting oil cylinders, and a discharging oil cylinder. The set of material receiving pull rods are symmetrically arranged at the front end of the inner mounting plate in the pressing mounting plate and are connected to the oil rod of the pulling-back oil cylinder. The pressing oil cylinder is arranged on the front end face of the pressing mounting plate. The pressing magnet is arranged on the mounting plate and is located between the set of material receiving pull rods. The set of lifting oil cylinders are arranged on the top of the pressing mounting plate and the oil rods of the lifting oil cylinders are connected to the mounting plate. The discharging oil cylinder is arranged at the tail of the mounting plate and the oil rod is connected to the pressing magnet.

[0010] Preferably, the automatic cutting mechanism includes a roller feeding component and a shaping and cutting component. The roller feeding component includes an installation box body, a pair of passive pressing rollers, an encoder, a roller pressing oil cylinder, a pair of active pressing rollers, and a roller driving motor. The pair of passive pressing rollers are arranged at the front end face of the installation box body. The encoder is arranged on one of the passive pressing rollers. The roller pressing oil cylinder is arranged at the top of the installation box body, and the end of the oil rod is connected to one end inside the passive pressing roller. The pair of active pressing rollers are arranged directly below the passive pressing rollers. The roller driving motor is arranged inside the installation box body and drives the pair of active pressing rollers to rotate.

[0011] Preferably, the shaping and cutting component includes a cutting installation box, a shaping oil cylinder, a shaping pressing plate, a cutting supporting roller, a supporting roller driving oil cylinder, a cutting knife, a cutting oil cylinder, a photoelectric inductor, a tail material pressing oil cylinder, and a tail material pressing plate. The shaping oil cylinder is arranged at the rear part of the front end of the cutting installation box. The shaping pressing plate is connected to the front end of the oil rod of the shaping oil cylinder. The cutting supporting roller is arranged at the front part of the front end of the cutting installation box. The supporting roller driving oil cylinder is arranged inside the cutting installation box, and the oil rod is connected to the cutting supporting roller. The cutting oil cylinder is arranged at the top of the cutting installation box. The cutting knife is arranged at the rear side of the cutting supporting roller and is connected to the oil rod of the cutting oil cylinder. The photoelectric inductor is arranged on the front end face of the cutting installation box and is in signal communication with the encoder. The tail material pressing oil cylinder is arranged on the rear side plate of the cutting installation box. The tail material pressing plate is arranged at the end of the oil rod of the tail material pressing oil cylinder.

[0012] Preferably, the movable material receiving mechanism includes a material receiving support frame, a horizontal linear module, a pair of movable supporting roller assemblies, a plurality of material receiving boxes, and a plurality of vertical linear modules. The horizontal linear module is erected on the upper support columns of the material receiving support frame. The pair of movable supporting roller assemblies are respectively slidably arranged on the horizontal linear module through sliders. The plurality of vertical linear modules are erected on the lower support columns of the material receiving support frame. The material receiving boxes are slidably arranged on the vertical linear modules one by one through sliders.

[0013] Preferably, the movable supporting roller assembly includes a supporting roller installation bracket, a conveying supporting roller unit with a speed regulating motor, an angular travel cylinder, a buffer pad, and a baffle with an inductor. The angular travel cylinder is arranged at the front end of the supporting roller installation bracket. The conveying supporting roller unit is arranged at the bottom of the supporting roller installation bracket and is connected to the air rod of the angular travel cylinder. The buffer pad is arranged on the supporting roller installation bracket. The baffle is arranged at the front part of the supporting roller installation bracket, and the inductor is in signal communication with the angular travel cylinder.

[0014] Preferably, a waste material linear module is arranged at the bottom of the waste material box.

[0015] The beneficial effects of the present invention are as follows: continuous and uninterrupted magnetic adsorption feeding and cutting, high production efficiency, short time consumption, can be set to cut at a specified length, more flexible and convenient to use without restrictions, automatic discharging without manual handling, low labor intensity, low labor cost, small safety hazards, the tail materials and waste materials can be used and automatically classified, high material utilization rate, automatic counting with low error rate and high accuracy, optimized cutting of finished materials, less material waste, and can effectively meet the production and on-site use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the moving material rack mechanism in the present invention.

[0018] Figure 3 It is a schematic diagram of the magnetic adsorption feeding mechanism in the present invention.

[0019] Figure 4 It is a schematic diagram of the vertical feeding component in the present invention.

[0020] Figure 5 It is a schematic diagram of the counting component in the present invention.

[0021] Figure 6 It is a schematic diagram of the pressing component in the present invention.

[0022] Figure 7 It is a schematic diagram of the automatic cutting mechanism in the present invention.

[0023] Figure 8 It is a schematic diagram of the roller feeding component in the present invention.

[0024] Figure 9 It is a schematic diagram of the shaping and cutting component in the present invention.

[0025] Figure 10 It is a schematic diagram of the moving material receiving mechanism in the present invention.

[0026] Figure 11 It is a schematic diagram of the moving idler roller component in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Please refer to Figure 1, A steel bar automatic cutting machine, comprising a moving material rack mechanism 1, a magnetic adsorption feeding mechanism 2, an automatic cutting mechanism 3, a conveying roller assembly 4, several waste boxes 5 and a moving material receiving mechanism 6. The magnetic adsorption feeding mechanism 2 is arranged above the moving material rack mechanism 1, the automatic cutting mechanism 3 is arranged on one side of the magnetic adsorption feeding mechanism 2, the moving material receiving mechanism 6 is arranged on one side of the automatic cutting mechanism 3, the conveying roller assembly 4 is arranged between the automatic cutting mechanism 3 and the moving material receiving mechanism 6, and the waste box 5 is arranged below the automatic cutting mechanism 3. The materials are pre-placed on the moving material rack mechanism. When it is necessary to cut a certain type of steel bar, the moving material rack mechanism automatically moves to the feeding position, and then the steel bar is sucked up by the magnetic adsorption feeding mechanism. The automatic cutting mechanism cuts the steel bar according to the set length specifications. The cut finished products are sent to the moving material receiving mechanism through the conveying roller assembly for material receiving, and the final waste falls from the automatic cutting mechanism into the waste box for recycling. Continuous magnetic adsorption feeding, automatic cutting and classification of finished products and waste products are achieved. The whole machine adopts a PLC control system to realize three-level control, which is convenient for linkage with other equipment. The specific mechanisms and processes will be elaborated below one by one.

[0029] As Figure 2 shown, the moving material rack mechanism 1 includes a bottom support frame 11, an upper material rack 12, a set of material rack linear guide rails 13, a servo motor 14, a gear 15 and a rack 16. The set of linear guide rails is arranged on both sides of the bottom support frame, the rack is installed in the middle of the bottom support frame, the bottom of the upper material rack is slidably arranged on the material rack linear guide rails on both sides of the bottom support frame through sliders, the top of the servo motor is hung on the feeding material rack, the gear is sleeved on the output shaft of the servo motor and meshes with the rack for transmission. Different specifications of steel bars are pre-placed in the upper material rack (when cutting one specification of steel bar, other specifications of steel bars can be fed simultaneously to save time). Under command control, when it is necessary to cut a certain specification of steel bar, the upper material rack moves to the corresponding specification of steel bar to facilitate the next operation. The servo motor drives the upper material rack to move to the corresponding position on the linear slide rail. The servo motor is connected to the upper material rack by a motor mounting plate, and the rack is fixed to the bottom support frame by a rack mounting plate. The servo motor rotates, driving the gear to rotate. Due to the cooperation of the gear and the rack, the upper material rack is driven to move left and right on the linear guide rail.

[0030] As Figure 3 shown, the magnetic adsorption feeding mechanism 2 includes a vertical feeding component 21, a counting component 22 and a pressing component 23. The counting component 22 is arranged at the rear of the vertical feeding component 21, the pressing component 23 is arranged at the upper rear of the vertical feeding component 21, and the vertical feeding component 21 (as Figure 4As shown in the figure, it includes a material suction magnet 211, a material suction driving oil cylinder 212, a pair of material suction positioning magnets 213 and a material suction support 214. The material suction driving oil cylinder is arranged on the material suction support. The material suction magnet is arranged at the end of the oil rod of the material suction driving oil cylinder. The pair of material suction positioning magnets are symmetrically arranged at the bottom on both sides of the material suction support. A material suction travel switch is arranged on the side of the material suction magnet. When the material suction driving oil cylinder moves downward to the bottom, the material suction magnet picks up the steel bar. Then the material suction driving oil cylinder returns to the initial position and places the steel bar adsorbed on the material suction positioning magnet. The steel bar driving oil cylinder moves downward again to pick up the steel bar, and then repeats the above actions. In this way, continuous and uninterrupted material suction and feeding can be achieved by the magnetic adsorption method.

[0031] As Figure 5 shown, the counting assembly 22 includes a counting driving oil cylinder 221, a counting magnet 222, a counting linear guide rail 223, a counting mounting plate 224, a counting travel switch 225, a material blocking folding plate 226 and a group of vertically arranged material discharging supporting rollers 227. The counting driving oil cylinder is arranged on the counting mounting plate. The counting linear guide rail is arranged on one side wall of the counting mounting plate. The side of the counting magnet is slidably arranged on the counting linear guide rail through a slider and is connected to the oil rod of the counting driving oil cylinder at the bottom. The counting travel switch is installed on the side of the counting magnet. The material blocking folding plate and the material discharging supporting rollers are respectively arranged at the front end of the counting mounting plate. After the steel bar is picked up and positioned on the two positioning magnets, the counting driving oil cylinder moves forward and drives the counting magnet together. When the counting travel switch touches the steel bar, the counting magnet attracts the steel bar. The counting driving oil cylinder returns to its original position, sucks out the steel bar and transfers it to the next pressing assembly. Each time the travel switch is touched, the control computer counts once. In this way, the number of steel bars can be accurately counted.

[0032] As Figure 6 shown, the pressing assembly 23 includes a pressing mounting plate 231, a group of material receiving pull rods 232, a pressing oil cylinder 233, a pressing magnet 234, a pulling-back oil cylinder 235, a group of lifting oil cylinders 236 and a material discharging oil cylinder 237. The group of material receiving pull rods are symmetrically arranged at the front end of the inner mounting plate of the pressing mounting plate and are connected to the oil rod of the pulling-back oil cylinder. The pressing oil cylinder is arranged on the front end face of the pressing mounting plate. The pressing magnet is arranged on the mounting plate and is located between the group of material receiving pull rods. The group of lifting oil cylinders are arranged on the top of the pressing mounting plate and the oil rods of the lifting oil cylinders are connected to the mounting plate. The material discharging oil cylinder is arranged at the tail of the mounting plate and its oil rod is connected to the pressing magnet. After the counting oil cylinder sucks back the steel bar, it is blocked by the material blocking folding plate and falls on the material receiving pull rods. At the same time, the pressing oil cylinder moves downward to press the steel bar. The pulling-back cylinder pulls the material receiving pull rods to retreat to the position of the pressing magnet, and the steel bar is adsorbed on the pressing magnet. The pressing oil cylinder returns to its original position. After the steel bar is adsorbed on the pressing magnet, the mounting plate is integrally lifted upward to the height of the material discharging supporting rollers in the counting assembly by a group of lifting oil cylinders. After reaching the designated position, it waits for the subsequent cutting action.

[0033] As shown Figure 7 in the figure, the automatic cutting mechanism 3 includes a roller feeding assembly 31 and a shaping and cutting assembly 32. The roller feeding assembly 31 (as shown Figure 8 in the figure) includes a mounting box body 311, a pair of passive pressing rollers 312, an encoder 313, a roller pressing oil cylinder 314, a pair of active pressing rollers 315 and a roller driving motor 316. The pair of passive pressing rollers are arranged at the front end face of the mounting box body. The encoder is arranged on one of the passive pressing rollers. The roller pressing oil cylinder is arranged at the top of the mounting box body and the end of the oil rod is connected to one end inside the passive pressing roller. The pair of active pressing rollers are arranged directly below the passive pressing rollers. The roller driving motor is arranged inside the mounting box body and drives the pair of active pressing rollers to rotate. As shown Figure 9 in the figure, the shaping and cutting assembly 32 includes a cutting mounting box 321, a shaping oil cylinder 322, a shaping pressing plate 323, a cutting supporting roller 324, a supporting roller driving oil cylinder 325, a cutting knife 326, a cutting oil cylinder 327, a photoelectric inductor 328, a tail stock pressing oil cylinder 329 and a tail stock pressing plate 320. The shaping oil cylinder is arranged at the rear part of the front end of the cutting mounting box. The shaping pressing plate is connected to the front end of the oil rod of the shaping oil cylinder. The cutting supporting roller is arranged at the front part of the front end of the cutting mounting box. The supporting roller driving oil cylinder is arranged inside the cutting mounting box and the oil rod is connected to the cutting supporting roller. The cutting oil cylinder is arranged at the top of the cutting mounting box. The cutting knife is arranged at the rear side of the cutting supporting roller and is connected to the oil rod of the cutting oil cylinder. The photoelectric inductor is arranged on the front end face of the cutting mounting box and is in signal communication with the encoder. The tail stock pressing oil cylinder is arranged on the rear side plate of the cutting mounting box. The tail stock pressing plate is arranged at the end of the oil rod of the tail stock pressing oil cylinder. After the steel bar is lifted to the height of the feeding supporting roller by the lifting oil cylinder, the shaping oil cylinder drives the shaping pressing plate to shape the steel bar first. The adsorbed steel bar may be uneven, which will affect the subsequent cutting operation. After shaping, the feeding oil cylinder pulls back to place the steel bar on the feeding supporting roller and the active pressing rollers. After the steel bar is placed, the passive pressing rollers are pressed tightly under the drive of the oil cylinder. The photoelectric induction switch senses that the steel bar starts to pass by, and the encoder starts to calculate the length. When the specified input length is reached, an instruction is sent to the cutting oil cylinder to drive the cutting knife to cut. After the cutting, the finished product can be sent out through the subsequent supporting roller assembly. When it comes to the last section, the tail stock oil cylinder moves downward to press the previous section of the steel bar through the pressing plate. At the same time, the supporting roller oil cylinder drives the cutting supporting roller to move downward to make the steel bar suspended. Finally, the cutting knife moves downward to cut. The previous section of the finished steel bar flows out, and the tail steel bar falls into the waste box.

[0034] As shown Figure 10As shown in the figure, the mobile material receiving mechanism 6 includes a material receiving support frame 61, a horizontal linear module 62, a pair of mobile roller assemblies 63, a plurality of material receiving boxes 64 and a plurality of vertical linear modules 65. The horizontal linear module is installed on the upper support columns of the material receiving support frame. The pair of mobile roller assemblies are respectively slidably arranged on the horizontal linear module through sliders. The plurality of vertical linear modules are installed on the lower support columns of the material receiving support frame. The material receiving boxes are slidably arranged on the vertical linear modules one by one through sliders. After the finished products are fed in through the roller assemblies, the two mobile roller assemblies alternately receive and discharge materials without interruption.

[0035] As Figure 11 shown in the figure, the mobile roller assembly 63 includes a roller mounting bracket 631, a conveying roller unit 632 with a speed regulating motor, a swing cylinder 633, a buffer pad 634 and a baffle 635 with an inductor. The swing cylinder is arranged at the front end of the roller mounting bracket. The conveying roller unit is arranged at the bottom of the roller mounting bracket and connected to the air rod of the swing cylinder. The buffer pad is arranged on the roller mounting bracket. The baffle is arranged at the front of the roller mounting bracket and the inductor is in signal communication with the swing cylinder. The finished steel bars are received and conveyed forward through the conveying roller unit. When the steel bars reach the baffle and trigger the inductor to send an instruction to the swing cylinder to rotate and discharge materials, the buffer pad can effectively protect the bracket from damage.

[0036] Among them, a waste material linear module 51 is provided at the bottom of the waste material box 5 (as Figure 10 ) so that the waste material box can move to receive materials without manual movement and move out after the waste materials are collected.

[0037] The beneficial effects of the present invention are as follows: continuous and uninterrupted magnetic adsorption feeding and cutting, high production efficiency, short time consumption, the cutting length can be set, the use is more flexible and convenient without limitation, automatic discharging without manual handling, low labor intensity, low labor cost, small safety hazards, the tail materials and waste materials can be used and automatically classified, high material utilization rate, automatic counting with low error rate and high accuracy, optimized cutting of the finished materials, less material waste, and can effectively meet the production and on-site use requirements.

[0038] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by those of ordinary skill in the art shall be regarded as not departing from the patent scope of the present invention.

Claims

1. An automatic steel bar cutting machine, characterized in that: It includes a movable rack mechanism (1), a magnetic adsorption feeding mechanism (2), an automatic cutting mechanism (3), a conveying roller assembly (4), a plurality of waste boxes (5) and a movable material receiving mechanism (6). The magnetic adsorption feeding mechanism (2) is arranged above the movable rack mechanism (1). The automatic cutting mechanism (3) is arranged on one side of the magnetic adsorption feeding mechanism (2). The movable material receiving mechanism (6) is arranged on one side of the automatic cutting mechanism (3). The conveying roller assembly (4) is arranged between the automatic cutting mechanism (3) and the movable material receiving mechanism (6). The waste box (5) is arranged below the automatic cutting mechanism (3). The magnetic adsorption feeding mechanism (2) includes a vertical feeding component (21), a counting component (22) and a pressing component (23). The counting component (22) is arranged at the rear side of the vertical feeding component (21). The pressing component (23) is arranged at the upper rear side of the vertical feeding component (21). The vertical feeding component (21) includes a material suction magnet (211), a material suction driving oil cylinder (212), a pair of material suction positioning magnets (213) and a material suction support (214). The material suction driving oil cylinder (212) is arranged on the material suction support (214). The material suction magnet (211) is arranged at the end of the oil rod of the material suction driving oil cylinder (212). The pair of material suction positioning magnets (213) are symmetrically arranged at the bottom of both sides of the material suction support (214). A material suction travel switch (215) is arranged on the side of the material suction magnet (213). The pressing component (23) includes a pressing mounting plate (231), a group of material receiving pull rods (232), a pressing oil cylinder (233), a pressing magnet (234), a pulling-back oil cylinder (235), a group of lifting oil cylinders (236) and a discharging oil cylinder (237). The group of material receiving pull rods (232) are symmetrically arranged at the front end of the mounting plate (238) installed inside the pressing mounting plate (231) and are connected to the oil rod of the pulling-back oil cylinder (235). The pressing oil cylinder (233) is arranged on the front end face of the pressing mounting plate (231). The pressing magnet (234) is arranged on the mounting plate (238) and is located between the group of material receiving pull rods (232). The group of lifting oil cylinders (236) are arranged at the top of the pressing mounting plate (231) and the oil rods of the lifting oil cylinders (236) are connected to the mounting plate (238). The discharging oil cylinder (237) is arranged at the tail of the mounting plate (238) and the oil rod is connected to the pressing magnet (234). The movable rack mechanism (1) includes a bottom support frame (11), an upper rack (12), a group of rack linear guide rails (13), a servo motor (14), a gear (15) and a rack (16). The group of rack linear guide rails (13) are arranged on both sides of the bottom support frame (11). The rack (16) is installed in the middle of the bottom support frame (11). The bottom of the upper rack (12) is slidably arranged on the rack linear guide rails (13) on both sides of the bottom support frame (11) through sliders. The top of the servo motor (14) is hung on the upper rack (12).The gear (15) is sleeved on the output shaft of the servo motor (14) and meshes with the rack (16) for transmission.

2. The automatic steel bar cutting machine according to claim 1, characterized in that: The counting component (22) includes a counting drive oil cylinder (221), a counting magnet (222), a counting linear guide (223), a counting mounting plate (224), a counting travel switch (225), a material blocking flap (226) and a set of vertically arranged discharging rollers (227). The counting drive oil cylinder (221) is arranged on the counting mounting plate (224). The counting linear guide (223) is arranged on one side wall of the counting mounting plate (224). The side of the counting magnet (222) is slidably arranged on the counting linear guide (223) through a slider, and the bottom is connected to the oil rod of the counting drive oil cylinder (221). The counting travel switch (225) is installed on the side of the counting magnet (222). The material blocking flap (226) and the discharging rollers (227) are respectively arranged at the front end of the counting mounting plate (224).

3. The automatic steel bar cutting machine according to claim 1, characterized in that: The automatic cutting mechanism (3) includes a roller feeding component (31) and a shaping and cutting component (32). The roller feeding component (31) includes a mounting box body (311), a pair of passive pressing rollers (312), an encoder (313), a roller pressing oil cylinder (314), a pair of active pressing rollers (315) and a roller drive motor (316). The pair of passive pressing rollers (312) is arranged at the front end face of the mounting box body (311). The encoder (313) is arranged on one of the passive pressing rollers (312). The roller pressing oil cylinder (314) is arranged on the top of the mounting box body (311), and the end of the oil rod is connected to the inner end of the passive pressing roller (312). The pair of active pressing rollers (315) is arranged directly below the passive pressing rollers (312). The roller drive motor (316) is arranged in the mounting box body (311) and drives the pair of active pressing rollers (315) to rotate.

4. The automatic steel bar cutting machine according to claim 3, characterized in that: The shaping and cutting component (32) includes a cutting mounting box (321), a shaping oil cylinder (322), a shaping pressing plate (323), a cutting roller (324), a roller drive oil cylinder (325), a cutter (326), a cutting oil cylinder (327), a photoelectric inductor (328), a tail material pressing oil cylinder (329) and a tail material pressing plate (320). The shaping oil cylinder (322) is arranged at the rear part of the front end of the cutting mounting box (321). The shaping pressing plate (323) is connected to the front end of the oil rod of the shaping oil cylinder (322). The cutting roller (324) is arranged at the front part of the front end of the cutting mounting box (321). The roller drive oil cylinder (325) is arranged in the cutting mounting box (321), and the oil rod is connected to the cutting roller (324). The cutting oil cylinder (327) is arranged on the top of the cutting mounting box (321). The cutter (326) is arranged at the rear side of the cutting roller (324) and is connected to the oil rod of the cutting oil cylinder (327). The photoelectric inductor (328) is arranged on the front end face of the cutting mounting box (321) and is in signal communication with the encoder (313). The tail material pressing oil cylinder (329) is arranged on the rear side plate of the cutting mounting box (321). The tail material pressing plate (320) is arranged at the end of the oil rod of the tail material pressing oil cylinder (329).

5. The automatic steel bar cutting machine according to claim 1, characterized in that: The mobile material receiving mechanism (6) includes a material receiving support frame (61), a horizontal linear module (62), a pair of mobile roller assemblies (63), a plurality of material receiving boxes (64) and a plurality of vertical linear modules (65). The horizontal linear module (62) is mounted on the upper support column (66) of the material receiving support frame (61). The pair of mobile roller assemblies (63) are respectively slidably arranged on the horizontal linear module (62) through sliders. The plurality of vertical linear modules (65) are mounted on the lower support column (67) of the material receiving support frame (61). The material receiving boxes (64) are slidably arranged on the vertical linear modules (65) one by one through sliders.

6. The automatic steel bar cutting machine according to claim 5, characterized in that: The mobile roller assembly (63) includes a roller mounting bracket (631), a conveying roller unit (632) with a speed regulating motor, a swing cylinder (633), a buffer pad (634) and a baffle (635) with a sensor. The swing cylinder (633) is arranged at the front end of the roller mounting bracket (631). The conveying roller unit (632) is arranged at the bottom of the roller mounting bracket (631) and is connected to the air rod of the swing cylinder (633). The buffer pad (634) is arranged on the roller mounting bracket (631). The baffle (635) is arranged at the front part of the roller mounting bracket (631), and the sensor is in signal communication with the swing cylinder (633).

7. The automatic steel bar cutting machine according to claim 1, characterized in that: A waste material linear module (51) is provided at the bottom of the waste material box (5).

Images