Protective device for cutter table of slitting machine

Abstract

The utility model relates to the technical field of slitting machines, in particular to a protective device for a slitting machine cutter table, the slitting machine cutter table comprises a machine base and two slitting rollers arranged on the machine base in a synchronous rotation mode, and the protective device comprises a first fixing plate, a second fixing plate, a protective plate and a photoelectric switch. The first fixing plate, the second fixing plate and the photoelectric switch are fixedly arranged on the machine base, the protection plate is detachably arranged between the first fixing plate and the second fixing plate and located on the inlet sides of the two slitting rollers, and the photoelectric switch is located on the inlet sides of the two slitting rollers and located below the protection plate. The protective device for the cutter table of the slitting machine is simple in structure and convenient to operate, a worker is blocked through the protective plate, and once the photoelectric switch detects the position of the worker, the two slitting rollers stop rotating, so that the worker cannot stand on the inlet side to wipe a cutter head, and the working efficiency is improved. And fingers or arms of a worker are effectively prevented from being rolled into the cutter head from the inlet sides of the two slitting rollers.

Description

Technical Field

[0001] This utility model relates to the field of slitting machine technology, specifically to a protective device for the slitting machine cutter table. Background Technology

[0002] A slitting machine, also known as a slitting line, longitudinal slitting machine, or slitting machine, is a type of metal slitting equipment. According to the requirements of the slitting machine's production process, the cutter head must rotate inwards towards the inlet side of the cutter head (i.e., the material inlet side, the cutter head inlet side). The operator needs to regularly clean and wipe the cutter head on the slitting machine's cutter head. Because of habitual operation, the operator often stands on the inlet side of the cutter head to wipe the rotating cutter head, posing a significant safety hazard and a high risk of injury. Therefore, a protective device for the slitting machine's cutter head is urgently needed to solve the above problems. Utility Model Content

[0003] To address the technical problem that operators often stand at the entrance side of the slitting machine to wipe the rotating cutter disc, potentially causing their fingers or arms to get caught in the disc, this invention provides a protective device for the slitting machine's cutter table. The device is simple in structure and easy to operate. The protective plate blocks the operator's path, and once the photoelectric switch detects the operator's position, the two slitting rollers stop rotating, preventing the operator from wiping the disc at the entrance side. This effectively avoids the operator's fingers or arms getting caught in the disc from the entrance side of the slitting rollers, thus greatly protecting the operator's safety.

[0004] This utility model provides a protective device for the blade holder of a slitting machine. The blade holder includes a base and two slitting rollers synchronously rotating on the base. The two slitting rollers rotate in opposite directions and are spaced apart. Multiple sets of blade discs are evenly fixed on the two slitting rollers. The protective device includes a first fixed plate, a second fixed plate, a protective plate, and a photoelectric switch. The first fixed plate, the second fixed plate, and the photoelectric switch are fixedly mounted on the base. The protective plate is detachably mounted between the first and second fixed plates and is located on the inlet side of the two slitting rollers. The photoelectric switch is located on the inlet side of the two slitting rollers and below the protective plate. After the two slitting rollers finish slitting the material, the operator fixes the protective plate between the first and second fixed plates. The protective plate, located on the inlet side of the two slitting rollers, seals and protects the inlet side of the two slitting rollers, preventing the operator from standing on the inlet side to wipe the rotating blade discs. Furthermore, if a worker, out of habit, stands on the entrance side and attempts to wipe the rotating blade disc, the photoelectric switch detects the worker's position. At this point, the two slitting rollers stop rotating, preventing the worker from wiping the blade discs on the two slitting rollers.

[0005] Furthermore, both the first and second fixing plates are fixedly provided with slots, and the two ends of the protective plate are respectively inserted into the two slots. A handle is fixedly provided in the middle of the protective plate. When the two ends of the protective plate are respectively inserted into the two slots, the protective plate is fixed between the first and second fixing plates; conversely, when the two ends of the protective plate are removed from the two slots, the protective plate is removed from between the first and second fixing plates. The handle facilitates the installation and removal of the protective plate by the operator.

[0006] Furthermore, protrusions are fixedly installed in the slots on both the first and second fixing plates, and grooves are fixedly installed at both ends of the protective plate corresponding to the protrusions, with the protrusions engaging in the grooves. When both ends of the protective plate are engaged in the two slots respectively, the protrusions also engage in the grooves, further stabilizing the protective plate between the first and second fixing plates.

[0007] Furthermore, multiple protective rods are evenly fixedly installed on the protective plate, with the rods positioned uniformly on both sides of the handle. The protective plate and the multiple protective rods work together to prevent workers from crossing the protective area of ​​the plate and remaining on the entrance side to wipe the rotating cutter head.

[0008] Furthermore, a motor and two sets of mounting parts are fixedly installed on the machine base. The motor is electrically connected to a photoelectric switch. The mounting parts include two bearing seats fixedly installed on both sides of the machine base. The two ends of the slitting roller are respectively fixedly connected to the bearings on the two bearing seats. The output shaft of the motor is fixedly connected to the end of one of the slitting rollers through a reducer. One end of each of the two slitting rollers is provided with a gear, and the two gears mesh. If a worker, out of habit, stands on the entrance side and tries to wipe the rotating cutter head, the photoelectric switch detects the worker's position. At this time, the motor stops, and the two slitting rollers stop rotating, preventing the worker from wiping the cutter head on the two slitting rollers.

[0009] Furthermore, the photoelectric switch is a reflector-type photoelectric switch; the photoelectric switch includes a light emitter, a light receiver, and a reflector. The light emitter and the light receiver are fixedly mounted on a first connecting plate, which is fixedly mounted on one side of the machine base. The reflector is fixedly mounted on a second connecting plate, which is fixedly mounted on the other side of the machine base. The reflector corresponds to the light emitter and the light receiver. If a worker, out of habit, stands on the entrance side and attempts to wipe the rotating cutter head, the photoelectric switch detects the worker's position, meaning the infrared light is blocked, and the motor stops.

[0010] Furthermore, the machine base is equipped with buttons near the exit sides of the two slitting rollers, and these buttons are electrically connected to the motor. Operators can only operate the buttons while standing at the exit sides of the two slitting rollers. After the operator activates the buttons, the motor runs, driving the slitting rollers and the cutter head to rotate. The operator then stands at the exit sides of the two slitting rollers to wipe the rotating cutter head.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The protective device of this utility model has a simple structure and is easy to operate. If a worker habitually stands on the entrance side to wipe the rotating cutter head, the protective plate will block the worker. Once the photoelectric switch detects the worker's position, the two slitting rollers will stop rotating, preventing the worker from standing on the entrance side to wipe the cutter head. This effectively prevents the worker's fingers or arms from being caught in the cutter head from the entrance side of the two slitting rollers, thus greatly protecting the worker's safety. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a protective device for the blade holder of a slitting machine according to the present invention;

[0014] Figure 2 This is a top view of the protective device of this utility model;

[0015] Figure 3 This is a side view of the protective device of this utility model.

[0016] Figure 4 This is a schematic diagram of the slitting roller of this utility model;

[0017] The numbers in the attached diagram are:

[0018] 1. Machine base; 11. Bearing housing; 12. Button; 2. Slitting roller; 21. Cutter head; 22. Gear; 3. First fixing plate; 4. Second fixing plate; 5. Protective plate; 51. Handle; 52. Protective rod; 6. Photoelectric switch; 61. Light emitter; 62. Light receiver; 63. Reflector; 64. First connecting plate; 65. Second connecting plate; 7. Protrusion block; 8. Motor; 9. Reducer. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1-4As shown, a protective device for the blade holder of a slitting machine includes a base 1 and two slitting rollers 2 synchronously rotated on the base 1. The two slitting rollers 2 are arranged one above the other, with opposite rotation directions and a gap between them. Multiple sets of cutter discs 21 (disc-shaped, locked to the slitting rollers 2 by bolts and nuts) are evenly fixed in the middle of the two slitting rollers 2. The protective device includes a first fixing plate 3, a second fixing plate 4, a protective plate 5, and a photoelectric switch 6. The first fixing plate 3 and the second fixing plate 4 are fixedly mounted on both sides of the base 1 by bolts and nuts and located on the inlet side of the two slitting rollers 2. The protective plate 5 is detachably mounted between the first fixing plate 3 and the second fixing plate 4 and is located on the inlet side of the two slitting rollers 2. The photoelectric switch 6 is located on the inlet side of the two slitting rollers 2 and below the protective plate 5. Material (e.g., aluminum sheet) enters from the inlet side of two synchronously rotating but oppositely rotating slitting rollers 2. After being cut by multiple sets of cutter discs 21 (at the gaps) on the two slitting rollers 2, the material exits from the outlet side of the two slitting rollers 2. When the two slitting rollers 2 rotate synchronously, because their rotation directions are opposite, both slitting rollers 2 rotate inwards, and the corresponding cutter discs 21 on the two slitting rollers 2 work together to cut the material.

[0021] In this embodiment, the protective device is used as follows: Before the two slitting rollers 2 cut the material, the operator removes the protective plate 5 from between the first fixed plate 3 and the second fixed plate 4. The protective plate 5 does not affect the subsequent cutting operation of the two slitting rollers 2. After the two slitting rollers 2 finish cutting the material, the operator fixes the protective plate 5 between the first fixed plate 3 and the second fixed plate 4. The protective plate 5 is located on the inlet side (left side) of the two slitting rollers 2, blocking and protecting the inlet side of the two slitting rollers 2. The operator cannot stand on the inlet side to wipe the rotating cutter disc 21. Furthermore, if an operator habitually stands on the inlet side to wipe the rotating cutter disc 21, the photoelectric switch 6 detects the operator's position. At this time, the two slitting rollers 2 stop rotating, and the operator cannot wipe the cutter disc 21 on the two slitting rollers 2. The operator can only wipe the rotating cutter disc 21 by standing on the outlet side of the two slitting rollers 2.

[0022] The protective device in this embodiment has a simple structure and is easy to operate. If a worker wants to stand on the entrance side to wipe the rotating cutter head 21 due to habitual operating methods, the protective plate 5 will block the worker. Once the photoelectric switch 6 detects the position of the worker, the two slitting rollers 2 will stop rotating, preventing the worker from standing on the entrance side to wipe the cutter head 21. This effectively prevents the worker's fingers or arms from being caught in the cutter head 21 from the entrance side of the two slitting rollers 2, thereby greatly protecting the safety of the worker.

[0023] In one possible implementation, slots are fixedly provided on both the first fixing plate 3 and the second fixing plate 4. The two ends of the protective plate 5 are respectively inserted into the two slots, and a handle 51 is fixedly provided in the middle of the protective plate 5. When the two ends of the protective plate 5 are inserted into the two slots, the protective plate 5 is fixed between the first fixing plate 3 and the second fixing plate 4; conversely, when the two ends of the protective plate 5 are removed from the two slots, the protective plate 5 is removed from between the first fixing plate 3 and the second fixing plate 4. The handle 51 facilitates the installation and removal of the protective plate 5 by workers.

[0024] In one possible implementation, protrusions 7 are fixedly installed in the slots on both the first fixing plate 3 and the second fixing plate 4. Grooves are fixedly installed at both ends of the protective plate 5 at positions corresponding to the protrusions 7, and the protrusions 7 are inserted into the grooves. With both ends of the protective plate 5 inserted into the two slots respectively, the protrusions 7 are also inserted into the grooves, further stabilizing the protective plate 5 between the first fixing plate 3 and the second fixing plate 4.

[0025] In one possible implementation, a plurality of protective rods 52 are evenly fixedly arranged on the protective plate 5, with the protective rods 52 evenly located on both sides of the handle 51; reflective strips are fixedly arranged on both the protective plate 5 and the plurality of protective rods 52. The protective plate 5 and the plurality of protective rods 52 work together to prevent personnel from crossing the protected area of ​​the protective plate 5 and still attempting to stand on the entrance side to wipe the rotating cutter head 21. The purpose of the reflective strips is also to remind personnel not to approach the entrance side.

[0026] In one possible implementation, a motor 8 and two sets of mounting parts are fixedly installed on the base 1. The motor 8 is electrically connected to a photoelectric switch 6. The mounting parts include two bearing seats 11 fixedly installed on both sides of the base 1. The two ends of the slitting roller 2 are respectively fixedly connected to the bearings on the two bearing seats 11. The output shaft of the motor 8 is fixedly connected to the end of one of the slitting rollers 2 through a reducer 9. The reducer 9 is a worm gear reducer. The structure and connection method of the motor 8 and the reducer 9 are existing technologies and will not be described in detail here. The input end of the worm gear reducer is fixedly connected to the output shaft of the motor 8, and the output end of the worm gear reducer is fixedly connected to the end of one of the slitting rollers 2. A gear 22 is provided at one end of each of the two slitting rollers 2, and the two gears 22 mesh with each other. When the motor 8 starts, it drives one of the slitting rollers 2 and two gears 22 to rotate, which in turn drives the other slitting roller 2 to rotate. Finally, the two slitting rollers 2 rotate synchronously and in opposite directions. When the two slitting rollers 2 rotate, the multiple sets of cutter discs 21 on them work to cut the material.

[0027] If a worker, out of habit, stands on the entrance side and tries to wipe the rotating cutter head 21, the photoelectric switch 6 detects the worker's position. At this time, the motor 8 stops, and the two slitting rollers 2 stop rotating, so the worker cannot wipe the cutter head 21 on the two slitting rollers 2.

[0028] In one possible implementation, the photoelectric switch 6 is a reflector-type photoelectric switch. The photoelectric switch 6 includes a emitter 61, a receiver 62, and a reflector 63. The emitter 61 and receiver 62 (locked together by bolts and nuts) are fixedly mounted on a first connecting plate 64, which is also fixedly mounted on one side of the machine base 1. The reflector 63 (locked together by bolts and nuts) is fixedly mounted on a second connecting plate 65, which is also fixedly mounted on the other side of the machine base 1. The reflector 63 corresponds to the emitter 61 and receiver 62. The emitter emits infrared light, the reflector 63 reflects the infrared light emitted by the emitter, and the receiver 62 receives the infrared light reflected by the reflector 63. If a worker, out of habit, stands on the entrance side to wipe the rotating cutter head 21, the photoelectric switch 6 detects the worker's position, thus blocking the infrared light, and the motor 8 stops.

[0029] The first connecting plate 64 keeps the light emitter 61 and the light receiver 62 at a certain distance from the inlet side of the slitting roller 2, and the second connecting plate 65 keeps the reflector 63 at a certain distance from the inlet side of the slitting roller 2, so as to ensure that the light emitter 61, the light receiver 62 and the reflector 63 can work together to detect the staff.

[0030] Preferably, the photoelectric switch 6 further includes a housing, which is fixedly connected to the first connecting plate 64 and covers the emitter 61 and the receiver 62. The housing protects the emitter 61 and the receiver 62.

[0031] In one possible implementation, the base 1 is provided with a button 12 near the outlet side of the two slitting rollers 2, and the button 12 is electrically connected to the motor 8. The operator can only operate the button 12 while standing on the outlet side of the two slitting rollers 2. After the operator activates the button 12, the motor 8 runs and drives the slitting rollers 2 and the cutter head 21 to rotate. The operator stands on the outlet side of the two slitting rollers 2 and wipes the rotating cutter head 21.

[0032] The embodiments described above are merely preferred embodiments of this utility model and are only used to explain this utility model. They are not intended to limit the scope of implementation of this utility model. For those skilled in the art, other implementation methods can be easily made by substitution or modification based on the technical content disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A protective device for a slitting machine cutter head, the slitting machine cutter head comprising a machine base (1) and two slitting rollers (2) synchronously rotatably mounted on the machine base (1), characterized in that, The two slitting rollers (2) rotate in opposite directions and are separated by a gap. Multiple cutter discs (21) are evenly fixed on the two slitting rollers (2). The protective device includes a first fixed plate (3), a second fixed plate (4), a protective plate (5), and a photoelectric switch (6). The first fixed plate (3), the second fixed plate (4), and the photoelectric switch (6) are fixed on the machine base (1). The protective plate (5) is detachably disposed between the first fixed plate (3) and the second fixed plate (4) and is located on the inlet side of the two slitting rollers (2). The photoelectric switch (6) is located on the inlet side of the two slitting rollers (2) and below the protective plate (5).

2. The protective device according to claim 1, characterized in that, Slots are fixedly provided on the first fixing plate (3) and the second fixing plate (4). The two ends of the protective plate (5) are respectively inserted into the two slots. A handle (51) is fixedly provided in the middle of the protective plate (5).

3. The protective device according to claim 2, characterized in that, The first fixing plate (3) and the second fixing plate (4) are each fixedly provided with a protrusion (7) in the slot. The two ends of the protective plate (5) are each fixedly provided with a groove corresponding to the protrusion (7). The protrusion (7) is inserted into the groove.

4. The protective device according to claim 2, characterized in that, Multiple protective rods (52) are evenly fixed on the protective plate (5), and the multiple protective rods (52) are evenly located on both sides of the handle (51).

5. The protective device according to claim 1, characterized in that, The base (1) is fixedly provided with a motor (8) and two sets of mounting parts. The motor (8) is electrically connected to a photoelectric switch (6). The mounting part includes two bearing seats (11) fixedly provided on both sides of the base (1). The two ends of the slitting roller (2) are respectively fixedly connected to the bearings on the two bearing seats (11). The output shaft of the motor (8) is fixedly connected to the end of one of the slitting rollers (2) through a reducer (9). One end of each of the two slitting rollers (2) is provided with a gear (22) and the two gears (22) mesh with each other.

6. The protective device according to claim 5, characterized in that, The photoelectric switch (6) is a reflector type photoelectric switch; the photoelectric switch (6) includes a light emitter (61), a light receiver (62) and a reflector (63). The light emitter (61) and the light receiver (62) are fixedly mounted on the first connecting plate (64) and the first connecting plate (64) is fixedly mounted on one side of the base (1). The reflector (63) is fixedly mounted on the second connecting plate (65) and the second connecting plate (65) is fixedly mounted on the other side of the base (1). The reflector (63) corresponds to the light emitter (61) and the light receiver (62).

7. The protective device according to claim 5, characterized in that, The base (1) is provided with a button (12) near the outlet side of the two slitting rollers (2), and the button (12) is electrically connected to the motor (8).

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