Bar short ruler and fixed ruler separating device

Abstract

The utility model discloses a bar short ruler and fixed ruler separating device which is characterized in that a transition beam is arranged at the upper end of a stand column and is connected with one side of a cross beam; rails are hung on the two sides of the cross beam, and travel switches are installed at the two ends of the rails. The top of the beam is fixedly connected with one end of a cable drag chain, and the other end of the cable drag chain is connected with the top end of a cable support fixed to the trolley assembly below the beam. The short ruler and the fixed ruler are separated, the operation of manually picking and detecting the short ruler is replaced, the labor intensity is greatly reduced, the optimized utilization of human resources is improved, and the production efficiency and the product quality are effectively improved.

Description

Technical Field

[0001] The utility model relates to finished product length cutting equipment of a steel rolling bar production line, in particular to a device for separating short lengths and fixed lengths of bars. Background Art

[0002] The products of the rolled steel bar production line are mainly φ12mm~φ32mm straight threaded building materials, and the fixed length of the finished products is generally between 9 and 12 meters. In the production process, due to the influence of many factors such as the length error of the steel billet, the material tolerance between the rolling mills, and the segmentation accuracy of the double-length flying shear, a certain amount of bars that are less than the fixed length will inevitably be produced after the finished products are cut to the fixed length, which is called short length. Only those that meet the fixed length requirements are qualified finished products, called fixed length. Short length is an unqualified finished product, which is generally treated as scrap steel or sold at a reduced price. In the production process, fixed length and short length cannot be mixed. If short length is mixed with fixed length after packaging, it is a quality accident. Therefore, fixed length and short length must be collected and packaged separately before the finished products are collected and packaged. How to quickly separate fixed length and short length has always been a difficult problem that all steel mills want to solve. According to the on-site process layout, there are No. 1 finishing line 04 and No. 2 finishing line 05 on the side of the post-shear roller 01 at the roller entrance. A set of lifting baffles 03 are installed on the post-shear roller 01 between the two finishing lines to divert the incoming materials and collect them from the two finishing lines (such as Figure 1 As shown). The traditional method is to manually pick out the short lengths on the No. 1 finishing line 04 or No. 2 finishing line 05 after the shear roller 01, and then transport the picked short lengths out of the two finishing lines to the special short length collection tank for packaging through the lifting roller and lifting chain in the No. 1 finishing line 04 or No. 2 finishing line 05. This method can achieve the purpose, but the labor intensity is very high. This position is already the hardest position in the bar production line.

[0003] In fact, a large number of short lengths are mainly concentrated in the last cut of the grouped bars after cutting to length, and the workload of manual picking of short lengths is also mainly concentrated here. It is precisely because of the high labor intensity of this position that there is a shortage of skilled workers in this position, which also seriously affects product quality. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a device for separating short lengths of bars from fixed lengths, which replaces the manual inspection of short lengths by mechanical action, thereby reducing the labor intensity of the position or optimizing the human resources of the position, and improving production efficiency and product quality.

[0005] The utility model adopts the following technical scheme to achieve the above-mentioned purpose. A device for separating short length and fixed length of bar materials, comprising a column installed between two rollers on the transmission side of the roller after shearing at the entrance of the roller, the upper end of the column is equipped with a transition beam, and the transition beam is connected to one side of the crossbeam; the crossbeam is located directly above the center line of the roller, and tracks are hoisted on both sides of the crossbeam, and a rack is installed on the bottom surface of the crossbeam, and travel switches are installed at both ends of the track; one end of a cable drag chain is fixedly connected to the top of the crossbeam, and the other end of the cable drag chain is connected to the top of the cable bracket fixed on the trolley assembly below the crossbeam;

[0006] The trolley assembly comprises an upper frame and a lower frame, the lower frame is frame-shaped, the upper frame is installed on the top of the lower frame by bolts; wheel assemblies are installed on the front and rear of the upper frame, and the front and rear sets of wheel assemblies are parallel to each other; a walking mechanism is installed between the front and rear wheel assemblies; the wheel assembly comprises a wheel axle and a wheel, a bearing is installed inside the wheel, and a cover is installed at the outer end; an oil seal is installed at the connection between the inner side of the wheel and the wheel axle, and the stepped shaft bodies at both ends of the wheel axle are fixedly connected to the upper frame through a pressure plate; the walking mechanism is composed of a gear, a first reducer and a first motor, the first motor is connected to the first reducer by a flange, gears are installed on both sides of the first reducer, and the gears are meshed with the racks; an axial hole is provided below the two side walls of the lower frame, a long shaft is installed in the axial hole through a copper sleeve, and the outer end of the long shaft is fixed to the tail end of the hook-shaped lifting arm of the lifting arm assembly by a set screw; below the two sides of the front end of the lifting arm An ear fork is provided, and hanging ears are provided on both outer sides of the electromagnet corresponding to the ear fork, and the hanging ears are connected to the ear fork through a pin shaft with a sleeve; a stopper is provided in the middle of the top of the electromagnet, and the stopper corresponds to the adjusting screw and the locking nut installed at the front end of the lifting arm; the second reducer of the lifting mechanism is installed on the transverse connecting plate in the lower frame, the second reducer is connected to the second motor through a flange, eccentric wheels are installed on both sides of the second reducer, and connecting shafts are installed on the eccentric wheel discs on both sides, and the outer end of the connecting shaft is installed with a guide wheel through a bearing, and the upper part of the guide wheel is connected to the slide rail provided at the middle bottom of the lifting arm; a signal switch is installed below one side wall of the lower frame; the signal switch is composed of a bracket, a low-position proximity switch and a high-position proximity switch, the bracket is connected to the outer side of the lower frame by screws, the low-position proximity switch is installed below the bracket, and the high-position proximity switch is installed above the bracket, and the low-position proximity switch and the high-position proximity switch are both connected to the control cabinet through cables.

[0007] Furthermore, the low-position proximity switch is of normally open type.

[0008] Furthermore, the high-position proximity switch is of a normally closed type.

[0009] Furthermore, the models of the low-position proximity switch and the high-position proximity switch are both LJA41-3008NK.

[0010] The utility model of the device for separating short length and fixed length of bar is installed on the roller after shearing and is located before the lifting baffle, that is, it is installed at a position 9 to 12 meters in front of the lifting baffle. After dozens or even hundreds of grouped bars are cut to fixed length, if there are short lengths among them, after the lifting baffle of the roller after shearing is aligned, the heads of the short length and the fixed length will be aligned, and only the fixed length will be aligned at the tail, and the short length will be shorter than the fixed length. At this time, the magnetic conductivity of the bar is utilized, and the flat part of the tail, that is, the tail of the fixed length, is sucked by the electromagnet, and then the short length bar that is not sucked is transported forward through the roller after shearing, so as to achieve the purpose of separating the short length from the fixed length, replace the operation of manually picking and inspecting the short length, greatly reduce the labor intensity, and improve the optimal utilization of human resources, effectively improve the production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the on-site process layout plan of the steel bar rolling production line;

[0012] Figure 2 It is the front view of the utility model;

[0013] Figure 3 It is a top view of the utility model;

[0014] Figure 4 It is a side view of the utility model;

[0015] Figure 5 It is a structural schematic diagram of the small and medium-sized vehicle assembly 1 of the utility model;

[0016] Figure 6 yes Figure 5 The enlarged structural diagram at E in the middle;

[0017] Figure 7 yes Figure 6 Schematic diagram of the FF section structure;

[0018] Figure 8 yes Figure 5 Partial structure diagram of the middle AA section;

[0019] Fig. 9 yes Figure 5 Partial structure diagram of the middle BB section;

[0020] Fig.10 yes Figure 5 Partial structure diagram of the middle CC section;

[0021] Fig.11 yes Figure 5 Partial structure diagram of the middle DD section;

[0022] Fig.12 It is a schematic diagram of the structure of the lifting arm assembly 15 in the utility model;

[0023] Fig.13 yes Fig.12 Schematic diagram of the local structure in the middle K direction;

[0024] Fig.14 It is a schematic diagram of the working state of the utility model.

[0025] In the figure: 01. Post-cutting roller table, 02. Roller, 03. Lifting baffle, 04. No. 1 finishing line, 05. No. 2 finishing line;

[0026] 1. Trolley assembly, 11. Lower frame, 12. Copper sleeve, 13. Long shaft, 14. Set screw; 15. Lifting arm assembly, 151. Lifting arm, 152. Pin shaft, 153. Hanging ear, 154. Electromagnet, 155. Bushing, 156. Lock nut, 157. Adjusting screw, 158. Block; 16. Wheel assembly, 161. Wheel, 162. Cover, 163. Bearing, 164. Oil seal, 165. Pressure plate, 166. Wheel axle; 17. Travel mechanism, 17 1. Gear, 172. First reducer, 173. First motor; 18. Upper frame; 19. Lifting mechanism, 191. Second reducer, 192. Eccentric wheel, 193. Guide wheel, 194. Slide rail, 195. Second motor; 2. Crossbeam; 3. Cable bracket; 4. Cable drag chain; 5. Column; 6. Transition beam; 7. Rack; 8. Track; 9. Travel switch; 10. Signal switch, 101. Bracket, 102. Low-position proximity switch, 103. High-position proximity switch. DETAILED DESCRIPTION

[0027] The utility model is described in detail below with reference to the accompanying drawings and embodiments. Figures 1 to 14 A device for separating short length and fixed length of bar materials, comprising a column 5 installed between two rollers 02 on the transmission side of the roller 01 after shearing at the roller entrance, a transition beam 6 is installed on the upper end of the column 5, and the transition beam 6 is connected to one side of the crossbeam 2; the crossbeam 2 is located directly above the center line of the roller 01, rails 8 are hoisted on both sides of the crossbeam 2, a rack 7 is installed on the bottom surface of the crossbeam 2, and travel switches 9 are installed at both ends of the rail 8; one end of the cable drag chain 4 is fixedly connected to the top of the crossbeam 2, and the other end of the cable drag chain 4 is connected to the top of the cable bracket 3 fixed on the trolley assembly 1 below the crossbeam 2 (such as Figures 1 to 4 shown);

[0028] The trolley assembly 1 includes an upper frame 18 and a lower frame 11, and the lower frame 11 is frame-shaped (such as Figure 5 As shown in FIG. 1 , the upper frame 18 is mounted on the top of the lower frame 11 by bolts; wheel assemblies 16 are mounted on the upper and rear sides of the upper frame 18 (as shown in FIG. 1 ). Fig. 9As shown in the figure, the front and rear wheel assemblies 16 are parallel to each other; a traveling mechanism 17 is installed between the front and rear wheel assemblies 16; the wheel assembly 16 includes an axle 166 and a wheel 161, a bearing 163 is installed inside the wheel 161, and a cover 162 is installed at the outer end; an oil seal 164 is installed at the connection between the inner side of the wheel 161 and the axle 166, and the stepped shaft bodies at both ends of the axle 166 located inside the wheel 161 are fixedly connected to the upper frame 18 through a pressure plate 165; the traveling mechanism 17 is composed of a gear 171, a first reducer 172 and a first motor 173 (as shown in the figure). Fig.10 As shown in FIG. 1 ), the first motor 173 is connected to the first reducer 172 through a flange, and gears 171 are installed on both sides of the first reducer 172, and the gears 171 are meshed with the rack 7; shaft holes (such as Figure 8 As shown in FIG. 1 ), a long shaft 13 is installed in the shaft hole through a copper sleeve 12, and the outer end of the long shaft 13 is fixed to the tail end of the hook-shaped lifting arm 151 of the lifting arm assembly 15 by a set screw 14 (as shown in FIG. 1 ). Fig.12 and Fig.13 As shown); ear forks are arranged at the lower sides of the front end of the lifting arm 151, and the outer sides of the electromagnet 154 are provided with hanging ears 153 corresponding to the ear forks. The suction force of the electromagnet 154 is greater than 20KN. The hanging ears 153 are connected to the ear forks through a pin 152 with a sleeve 155; a stopper 158 is arranged in the middle of the top of the electromagnet 154, and the stopper 158 corresponds to the adjusting screw rod 157 and the locking nut 156 installed at the front end of the lifting arm 151; the second reducer 191 of the lifting mechanism 19 is installed on the transverse connecting plate in the lower frame 11 (as shown in FIG. Fig.11 As shown in the figure, the second reducer 191 is connected to the second motor 195 through a flange, and eccentric wheels 192 are installed on both sides of the second reducer 191. The eccentric wheels 192 on both sides are installed with connecting shafts. The outer end of the connecting shaft is installed with a guide wheel 193 through a bearing. The upper part of the guide wheel 193 is connected to the slide rail 194 provided at the middle bottom of the lifting arm 151; a signal switch 10 (as shown in the figure) is installed at the bottom of one side wall of the lower frame 11 Figure 6 The signal switch 10 is composed of a bracket 101, a low-position proximity switch 102 and a high-position proximity switch 103 (as shown); Figure 7 As shown in FIG. 1 , the bracket 101 is connected to the outer side of the lower frame 11 by screws, the low-position proximity switch 102 is a normally open type and is installed below the bracket 101, and the high-position proximity switch 103 is a normally closed type and is installed above the bracket 101. The normally open low-position proximity switch 102 and the normally closed high-position proximity switch 103 are both connected to the control cabinet through cables. The model of the low-position proximity switch 102 and the high-position proximity switch 103 are both LJA41-3008NK.

[0029] The improved short-length and fixed-length separation device of the utility model is respectively installed at the fixed-length position of 9 meters to 12 meters in front of the lifting baffle 03 of the first finishing line 04 at the entrance of the roller conveyor (such as Figure 1 , Figure 2 and Fig.14 The position of the electromagnet 154 at a low position is adjusted by the walking mechanism 17 to correspond to the current production length specification.

[0030] Principle of transverse movement: The first motor 173 in the walking mechanism 17 is powered, and the first reducer 172 rotates, driving the gears 171 on both sides of the output end of the first reducer 172 to rotate. Since the rack 7 meshing with the gear 171 is fixedly installed at the bottom of the beam 2, the rotation of the gear 171 will push the first reducer 172 to move horizontally, and the first reducer 172 is installed on the upper frame 18 of the trolley assembly 1. A pair of wheel assemblies 16 are installed at the front and rear of the upper frame 18. The wheels 161 in the wheel assembly 16 roll on the tracks 8 on both sides of the bottom of the beam 2. The rims of the four wheels 161 are designed on the inside to play a guiding role. The travel switches 9 are provided at the front and rear extreme positions of the track 8, which are the extreme positions of the trolley's transverse movement to prevent the trolley from rushing over. An electromagnetic brake structure is installed inside the first motor 173. When the power is off, the motor is braked, and the trolley assembly 1 will be locked in the power-off position through the gear 171 and the rack 7. Principle of lifting and lowering movement. The second motor 195 in the lifting mechanism 19 is powered, and drives the two eccentric wheels 192 to rotate through the second reducer 191. The deviation distance between the center of the guide wheel 193 and the rotation center of the eccentric wheel 192 determines the lifting stroke. The guide wheel 193 is a double-rim structure to prevent the slide rail 194 from deviating. The slide rail 194 is installed at the middle bottom position of the lifting arm 151 to protect the contact part between the lifting arm 151 and the guide wheel 193 and reduce wear. Since the center of the guide wheel 193 deviates from the rotation center, it can only make a circular motion around the output center of the second reducer 191, thereby driving the slide rail 194 and the lifting arm 151 to do lifting and lowering motion. Since one end of the lifting arm 151 is fixed to the lower frame 11 through the copper sleeve 12 and the long shaft 13, the lifting arm assembly 15 can only make a cycloidal motion with the center of the long shaft 13, and the electromagnet 154 installed at the other end of the lifting arm 151 realizes the lifting action.

[0031] All power lines and signal lines on the trolley assembly 1, such as the first motor 173, the second motor 195, the low proximity switch 102, the high proximity switch 103, and the electromagnet 154, move with the trolley. The terminal box of the cable is located at the fixed connection between the cable drag chain 4 and the top of the crossbeam 2. All cables are routed from the terminal box along the cable drag chain 4, and then pass through the hollow cable bracket 3 to reach each terminal use point on the trolley assembly 1. This reduces the wear of the cable when the trolley assembly 1 moves horizontally, and also avoids the risk of accidental injury caused by exposed cables.

[0032] Working principle of the equipment: In standby mode, the electromagnet 154 is adjusted to a high position through the lifting mechanism 19 and the power is cut off for braking. When working, when the last cut of the bar material cut to length is transported in groups to the lifting baffle 03 and aligned, the longest tail is the fixed length, which is directly below the electromagnet 154. At this time, the operator presses the automatic working switch, the second motor 195 in the lifting mechanism 19 is energized, and the eccentric wheel 192 starts to rotate counterclockwise (such as Figure 5 As shown in the figure, the lifting arm 151 starts to descend under the guidance of the guide wheel 193, and drives the electromagnet to descend at the same time. When the lifting arm 151 drops to the lowest position, the low-position proximity switch 102 signal is triggered. The electromagnet 154 is immediately energized by the issuance of this signal, and all the tails of the fixed lengths in contact with the electromagnet 154 are sucked. As the eccentric wheel 192 continues to rotate counterclockwise, when the lifting arm 151 rises to the highest position, the high-position proximity switch 103 signal is triggered. With the issuance of this signal, the second motor 195 is automatically powered off and braked. At this time, all the finished products that are not sucked and lifted up are short lengths. Then the operator opens the lifting baffle 03 and starts the roller 01 to continue to transport the short lengths that are not sucked forward to the second finishing line 05 for separate collection. After the short length has moved forward, the operator finally presses the power-off switch of the electromagnet 154. At this time, all the sucked fixed lengths are released and fall freely back into the roller table 01. The electromagnet 154 remains at the highest point, waiting for the next working cycle. All the released fixed lengths can be continuously collected through the No. 1 finishing line 04 or the No. 2 finishing line 05 (such as Figure 1 As shown in the figure), because there is no short length mixed in. At this time, the function of separating short length from fixed length is achieved (as shown in the figure). Fig.14 As shown in the figure, in order to adapt to different specifications of bars, the rigidity of small and large specifications is different, that is, when the electromagnet 154 sucks one end of the fixed length and lifts it, the bending arc of the small and large specifications of the bars is also different. In order to achieve the vertical attraction of the bar and the magnet 154, the angle of the electromagnet 154 can be changed by adjusting the screw rod 157 and the locking nut 156 to prevent the steel from falling off.

[0033] The utility model utilizes the electromechanical action of the equipment to replace some simple, repetitive and labor-intensive positions, thereby achieving the purpose of reducing labor intensity or optimizing human resources. The labor intensity of the position is reduced by at least 80%. And because the staff is affected by various factors such as age, skills, and physical condition, the accuracy of the short ruler picking work is very unstable. After adopting the utility model device, the qualified rate of the factory products is increased by more than 50%.

Claims

1. A device for separating short lengths of bars from fixed lengths, comprising a column (5) installed between two rollers (02) on the driving side of a roller conveyor (01) after shearing at the roller conveyor entrance, characterized in that: A transition beam (6) is installed at the upper end of the column (5), and the transition beam (6) is connected to one side of the cross beam (2); the cross beam (2) is located directly above the center line of the roller table (01), rails (8) are hoisted on both sides of the cross beam (2), a rack (7) is installed on the bottom surface of the cross beam (2), and travel switches (9) are installed at both ends of the rail (8); one end of a cable drag chain (4) is fixedly connected to the top of the cross beam (2), and the other end of the cable drag chain (4) is connected to the top of a cable bracket (3) fixed on the trolley assembly (1) below the cross beam (2); The trolley assembly (1) comprises an upper frame (18) and a lower frame (11), wherein the lower frame (11) is frame-shaped, and the upper frame (18) is mounted on the top of the lower frame (11) by means of bolts; wheel assemblies (16) are mounted on the upper and rear sides of the upper frame (18), and the front and rear sets of the wheel assemblies (16) are parallel to each other; a running mechanism (17) is mounted between the front and rear wheel assemblies (16); the wheel assembly (16) comprises a wheel axle (166) and a wheel (161); a bearing (163) is mounted inside the wheel (161), and a cover (162) is mounted on the outer end; an oil seal (164) is mounted at the connection between the inner side of the wheel (161) and the wheel axle (166), and both ends of the wheel axle (166) are located at the wheel (161). 1) The inner stepped shaft body is fixedly connected to the upper frame (18) through a pressure plate (165); the walking mechanism (17) is composed of a gear (171), a first reducer (172) and a first motor (173); the first motor (173) is connected to the first reducer (172) through a flange; gears (171) are installed on both sides of the first reducer (172); the gears (171) are meshed with the rack (7); shaft holes are provided below the two side walls of the lower frame (11); a long shaft (13) is installed in the shaft hole through a copper sleeve (12); the outer end of the long shaft (13) is fixedly connected to the rear end of the hook-shaped lifting arm (151) of the lifting arm assembly (15) through a set screw (14); the front end of the lifting arm (151) Ear forks are arranged at the lower sides of both sides, and hanging ears (153) are arranged at the outer sides of the electromagnet (154) corresponding to the ear forks, and the hanging ears (153) and the ear forks are connected through a pin shaft (152) with a sleeve (155); a stopper (158) is arranged in the middle of the top of the electromagnet (154), and the stopper (158) corresponds to the front end of the lifting arm (151) equipped with an adjusting screw rod (157) and a locking nut (156); the second reducer (191) of the lifting mechanism (19) is installed on the transverse connecting plate in the lower frame (11), the second reducer (191) is connected to the second motor (195) through a flange plate, and eccentric wheels (192) are installed on both sides of the second reducer (191), and the eccentric wheels (192) on both sides are installed on the wheel disc A connecting shaft is provided, the outer end of which is provided with a guide wheel (193) via a bearing, the upper portion of the guide wheel (193) being connected to a slide rail (194) provided at the middle bottom of a lifting arm (151); a signal switch (10) is provided below a side wall of the lower frame (11); the signal switch (10) is composed of a bracket (101), a low-position proximity switch (102) and a high-position proximity switch (103); the bracket (101) is connected to the outer side surface of the lower frame (11) via screws, the low-position proximity switch (102) is provided below the bracket (101), the high-position proximity switch (103) is provided above the bracket (101), and both the low-position proximity switch (102) and the high-position proximity switch (103) are connected to a control cabinet via cables.

2. The device for separating short length and fixed length of bars according to claim 1 is characterized in that: The low-position proximity switch (102) is of a normally open type.

3. The device for separating short length and fixed length of bars according to claim 1, characterized in that: The high-position proximity switch (103) is of a normally closed type.

4. The device for separating short length and fixed length of bars according to claim 1, characterized in that: The model numbers of the low-position proximity switch (102) and the high-position proximity switch (103) are both LJA41-3008NK.

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