Automatic reel changing and pipe unloading device

Abstract

The invention relates to the technical field of coil material coil changing, and particularly discloses an automatic coil changing and pipe unloading device which comprises an automatic coil changing mechanism and a turnover trolley, fixing plates are installed on the two sides of the bottom of the turnover trolley, and first pneumatic cylinders are installed on the tops of the two fixing plates; wherein a first photoelectric sensor is arranged at the position, close to the first pneumatic cylinders, of the top of one fixing plate, Y-shaped frames are installed at the telescopic ends of the two first pneumatic cylinders correspondingly, clamping rotating assemblies are arranged on the two sides of the exterior of the automatic roll changing mechanism correspondingly, and a fault lifting assembly is arranged on one side of the interior of the automatic roll changing mechanism. According to the device, the reel changing time is shortened, the functions of automatic loading, automatic transposition, automatic pipe unloading and automatic transportation are achieved, reel changing is more convenient and safer, all signal points have signal output, and a closed-loop system is formed; according to the whole device, operation of workers is reduced, and when a new material coil is located at the discharging position, the fault end of the new material coil can be automatically found through arrangement of the clamping rotating assembly and the fault material lifting assembly.

Description

Technical Field

[0001] The invention relates to the technical field of coil material changing, and in particular to an automatic coil changing and tube unloading device. Background Art

[0002] Coil material is a kind of material that is rolled continuously, and the coil material can be of various kinds, such as metal coil material, leather, plastic coil material, asphalt waterproofing coil material, etc.; some existing materials are usually rolled up by equipment after production, so that these coil materials can be used, transported and sold; loading, unloading and unwinding work will be carried out during coil material processing.

[0003] At present, most of the unwinding equipment for some materials is operated manually. When the material roll is emptied, the worker has to remove the old empty material tube by himself, then transport the new material roll to install it at the unwinding position, and then find the broken end of the new material roll and pull it out for unwinding. This operation is time-consuming and labor-intensive, and delays production. For this reason, we propose an automatic roll changing and tube unloading device. Summary of the invention

[0004] The object of the present invention is to provide an automatic roll-changing and tube-unloading device to solve the problem in the above-mentioned background technology that the unwinding equipment for some materials is mostly operated manually. When the roll is emptied, the worker has to remove the old empty tube by himself, transport the new roll and install it at the unwinding position, and then find the broken end of the new roll and pull it out for unwinding. This operation is time-consuming and labor-intensive, and delays production.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic roll-changing and pipe-unloading device, comprising an automatic roll-changing mechanism and a turnover trolley, a material discharge trough is arranged on the top of the turnover trolley, fixed plates are installed on both sides of the bottom of the turnover trolley, a first pneumatic cylinder is installed on the top of the two fixed plates, a first photoelectric sensor is arranged on the top of one of the fixed plates and adjacent to the first pneumatic cylinder, a Y-shaped frame is installed at the telescopic ends of the two first pneumatic cylinders, a second photoelectric sensor is arranged at one end of the top of the Y-shaped frame, a clamping and rotating assembly is arranged on both sides of the outside of the automatic roll-changing mechanism, and a fault material lifting assembly is arranged on one side of the inside of the automatic roll-changing mechanism;

[0006] The automatic roll-changing mechanism includes a machine wall and a material discharge shaft, a raw material roll is arranged outside the material discharge shaft, a support plate is installed on the bottom side of the machine wall, a reduction motor is installed on the inner side of the support plate, sprocket one, sprocket two and sprocket three are connected to the inner ends of the automatic roll-changing mechanism, one of the sprockets one is connected to the reduction motor, a connecting rod is installed together with the two sprockets one, chain one is arranged outside the sprocket one and the sprocket two, chain two is arranged outside the sprocket two and the sprocket three, three groups of material roll fixing components are arranged on the outer side of chain two, and a first laser rangefinder and a third photoelectric sensor are arranged on the inner side of the machine wall.

[0007] Among them, the material roll fixing assembly includes a mounting plate installed on the outside of the second chain, and the material roll seat and the second pneumatic cylinder are respectively installed on the top of the mounting plate. A groove corresponding to the material unwinding shaft is opened on the top of the material roll seat, and a connecting shaft is connected to one end of the top of the material roll seat.

[0008] Wherein, a shaft seat cover is installed on the outside of the connecting shaft, a mounting seat is installed on one side of the outside of the shaft seat cover, and a connecting plate is installed on the telescopic end of the second pneumatic cylinder, and the connecting plate is rotatably connected to the inside of the mounting seat.

[0009] Among them, the clamping and rotating assembly includes a connecting frame installed on the outside of the automatic roll changing mechanism, a second laser rangefinder is installed on one side of the interior of the connecting frame, a slide groove is opened at the bottom of the connecting frame, a first electromagnet and a second electromagnet are respectively arranged on both sides of the interior of the slide groove, and a slide seat is connected to the interior of the slide groove, and the slide seat is made of iron.

[0010] Among them, a servo motor is installed at the top of the slide seat, the power drive end of the servo motor is connected to a mounting cover, a pressure sensor is arranged at the front center of the mounting cover, a double-headed electric push rod is arranged inside the mounting cover, and mounting brackets are installed at both telescopic ends of the double-headed electric push rod, clamping plates are installed on one side of the two mounting brackets, and anti-slip pads are arranged on the inner sides of the two clamping plates.

[0011] Among them, the fault material lifting component includes a first electric push rod installed on one side of the automatic roll changing mechanism, a fixed frame is installed on the telescopic end of the first electric push rod, and a third laser rangefinder and an alarm are installed on one side of the inner side of the fixed frame.

[0012] A frame plate is installed at one end of the bottom of the fixed frame, a material lifting plate is installed at one end of the top of the frame plate, and a scraper is installed at one end of the bottom of the frame plate. Both the material lifting plate and the scraper are arc surfaces.

[0013] Among them, two symmetrical second electric push rods are installed on one side of the inner part of the fixing frame, and the telescopic ends of the two second electric push rods are installed with clamping plates. The outer side of the clamping plate is provided with several groups of equidistant anti-skid particles, and the anti-skid particles are made of rubber.

[0014] The present invention has at least the following beneficial effects:

[0015] When the present invention is in use, the roll changing time is shortened, and the functions of automatic loading, automatic indexing, automatic tube unloading and automatic transportation are realized, making the roll changing more convenient and safer. Each signal point has a signal output to form a closed-loop system. The overall device reduces the operation of workers. When a new material roll is located at the discharge position, the fault end of the new material roll can be automatically found through the setting of the clamping and rotating component and the fault picking component, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a side view of the structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the roll changing mechanism of the present invention;

[0019] Figure 4 It is a front view of the roll changing mechanism of the present invention;

[0020] Figure 5 This is a semi-exploded diagram of the roll changing mechanism of the present invention;

[0021] Figure 6 It is a schematic diagram of the material roll fixing assembly of the present invention;

[0022] Figure 7 It is a schematic diagram of the clamping and rotating assembly of the present invention;

[0023] Figure 8 This is an internal diagram of the clamping and rotating assembly of the present invention;

[0024] Fig. 9 It is a schematic diagram of the fault material extraction component of the present invention.

[0025] In the figure: 1. Automatic roll changing mechanism; 2. Turnover trolley; 3. Material discharge trough; 4. Fixed plate; 5. First pneumatic cylinder; 6. First photoelectric sensor; 7. Y-shaped frame; 8. Clamping and rotating assembly; 9. Fault material lifting assembly; 10. Second photoelectric sensor; 101. Machine wall; 102. Support plate; 103. Speed ​​reduction motor; 104. Sprocket 1; 105. Sprocket 2; 106. Sprocket 3; 107. Chain 1; 108. Chain 2; 109. Material roll fixing assembly; 110. Material discharge shaft; 111. First laser rangefinder; 112. Third photoelectric sensor; 113. Raw material roll; 114. Connecting rod; 1091. Mounting plate; 1092. Material roll shaft seat; 1093. The second pneumatic cylinder; 1094, connecting shaft; 1095, shaft seat cover; 1096, mounting seat; 1097, connecting plate; 81, connecting frame; 82, second laser rangefinder; 83, slide groove; 84, first electromagnet; 85, second electromagnet; 86, servo motor; 87, mounting cover; 88, pressure sensor; 89, double-headed electric push rod; 810, mounting bracket; 811, clamping plate; 812, anti-skid pad; 813, slide seat; 91, first electric push rod; 92, fixing frame; 93, third laser rangefinder; 94, frame plate; 95, lifting plate; 96, scraper; 97, second electric push rod; 98, clamping plate; 99, anti-skid particles; 910, alarm. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1

[0028] See also Figures 1 to 9 The present invention provides a technical solution: an automatic roll-changing and pipe-unloading device, comprising an automatic roll-changing mechanism 1 and a turnover trolley 2, a material discharge trough 3 is arranged on the top of the turnover trolley 2, fixed plates 4 are installed on both sides of the bottom of the turnover trolley 2, first pneumatic cylinders 5 are installed on the top of the two fixed plates 4, a first photoelectric sensor 6 is arranged on the top of one of the fixed plates 4 and adjacent to the first pneumatic cylinder 5, a Y-shaped frame 7 is installed at the telescopic end of the two first pneumatic cylinders 5, a second photoelectric sensor 10 is arranged at one end of the top of the Y-shaped frame 7, a clamping and rotating assembly 8 is arranged on both sides of the outside of the automatic roll-changing mechanism 1, and a fault material lifting assembly 9 is arranged on one side of the inside of the automatic roll-changing mechanism 1;

[0029] The automatic roll-changing mechanism 1 comprises a machine wall 101 and a material discharge shaft 110, a raw material roll 113 is arranged outside the material discharge shaft 110, a support plate 102 is installed on one side of the bottom of the machine wall 101, a reduction motor 103 is installed on one side of the inner side of the support plate 102, sprocket wheel 104, sprocket wheel 2 105 and sprocket wheel 3 106 are connected to both ends of the inner side of the automatic roll-changing mechanism 1, one of the sprocket wheels 104 is connected to the reduction motor 103, a connecting rod 114 is installed together with the two sprocket wheels 104, a chain 107 is arranged outside the sprocket wheel 104 and the sprocket wheel 2 105, a chain 2 108 is arranged outside the sprocket wheel 2 105 and the sprocket wheel 3 106, three groups of material roll fixing components 109 are arranged outside the chain 2 108, and a first laser rangefinder 111 and a third photoelectric sensor 112 are arranged on one side of the inner side of the machine wall 101;

[0030] The material roll fixing assembly 109 includes a mounting plate 1091 mounted on the outside of the second chain 108, a material roll shaft seat 1092 and a second pneumatic cylinder 1093 are mounted on the top of the mounting plate 1091, a groove corresponding to the material unwinding shaft 110 is provided on the top of the material roll shaft seat 1092, a connecting shaft 1094 is connected to one end of the top of the material roll shaft seat 1092, a shaft seat cover 1095 is mounted on the outside of the connecting shaft 1094, a mounting seat 1096 is mounted on one side of the outside of the shaft seat cover 1095, a connecting plate 1097 is mounted on the telescopic end of the second pneumatic cylinder 1093, and the connecting plate 1097 is rotatably connected to the inside of the mounting seat 1096;

[0031] The clamping and rotating assembly 8 includes a connecting frame 81 installed on the outside of the automatic roll-changing mechanism 1, a second laser rangefinder 82 is installed on one side of the connecting frame 81, a slide groove 83 is provided at the bottom of the connecting frame 81, a first electromagnet 84 and a second electromagnet 85 are respectively provided on both sides of the slide groove 83, a slide seat 813 is connected to the inside of the slide groove 83, the slide seat 813 is made of iron, a servo motor 86 is installed on the top of the slide seat 813, a mounting cover 87 is connected to the power drive end of the servo motor 86, a pressure sensor 88 is provided at the front center of the mounting cover 87, a double-headed electric push rod 89 is provided inside the mounting cover 87, mounting brackets 810 are installed at both ends of the telescopic ends of the double-headed electric push rod 89, a clamping plate 811 is installed on one side of the two mounting brackets 810, and anti-slip pads 812 are provided on the inner sides of the two clamping plates 811;

[0032] The fault lifting component 9 includes a first electric push rod 91 installed on one side of the automatic roll changing mechanism 1, a fixed frame 92 is installed at the telescopic end of the first electric push rod 91, a third laser rangefinder 93 and an alarm 910 are respectively installed on one side of the inner part of the fixed frame 92, a frame plate 94 is installed at the bottom end of the fixed frame 92, a lifting plate 95 is installed at the top end of the frame plate 94, a scraper 96 is installed at the bottom end of the frame plate 94, both the lifting plate 95 and the scraper 96 are curved surfaces, two symmetrical second electric push rods 97 are installed on one side of the inner part of the fixed frame 92, and clamping plates 98 are installed at the telescopic ends of the two second electric push rods 97, and several groups of equidistant anti-skid particles 99 are arranged on the outer side of the clamping plate 98, and the anti-skid particles 99 are made of rubber.

[0033] When production starts, the shaft seat cover 1095 is in the open state, and the turnover trolley 2 delivers the required raw material roll 113 from the raw material warehouse or the previous process to the site, and the telescopic end of the first pneumatic cylinder 5 arranged at the turnover trolley 2 drives the raw material roll 113 transported on the top to move upward, and the unloading shaft 110 at the raw material roll 113 is aligned with the position of the opened material roll shaft seat 1092, and the telescopic end of the first pneumatic cylinder 5 drives the unloading shaft 110 to move toward the material roll shaft seat 1092, at this time, the telescopic end of the second pneumatic cylinder 1093 is reset, and the unloading shaft 110 is fixed between the material roll shaft seat 1092 and the shaft seat cover 1095; after the material roll is placed, the turnover trolley 2 moves outward to continue to run the new raw material roll 113 or return to the previous process; the material roll fixing assembly 109 and the Y-shaped frame 7 are in a staggered state, which is convenient for the handover of the unloading shaft 110;

[0034] After the raw material roll 113 is placed, the reduction motor 103 drives the sprocket wheel 104 to rotate, and the two sprocket wheels 104 are rotated at the same time through the setting of the connecting rod 114. The two sprocket wheels 104 drive the two sprocket wheels 2 105 to rotate through the two chain wheels 107, and the two sprocket wheels 2 105 drive the two sprocket wheels 3 106 to rotate through the two chain wheels 2 108. At this time, the three groups of material roll fixing components 109 on the chain wheels 2 108 move; the raw material roll 113 fixed at the first material roll fixing component 109 is transported to the second material roll fixing component 109. When the first laser rangefinder 111 detects that the diameter of the raw material roll 113 is less than the specified value, the reduction motor 103 continues to work, the turnover trolley 2 starts, and the new raw material roll 113 is placed on the first two material roll fixing assemblies 109; after the new raw material roll 113 is placed, the turnover trolley 2 descends to the required height, and moves inward to the last bottom material roll fixing assembly 109, and docks the unwinding shaft 110 that has finished unwinding;

[0035] When the third photoelectric sensor 112 is sensed by the unwinding shaft 110, the turnover trolley 2 stops moving. When the raw material roll 113 of the second material roll fixing assembly 109 is unwound, the worker starts the reduction motor 103 after completing the docking of the head of the new raw material roll 113 with the tail of the old raw material roll 113. The new material roll is then transported to the second material roll fixing assembly 109 for unwinding. At the same time, the original second material roll fixing assembly 109 also runs to the position of the third material roll fixing assembly 109. When the first photoelectric sensor 6 detects the unwinding unwinding shaft 110, the first pneumatic cylinder 5 is started to make the Y-shaped frame 7 correspond to the position of the unwinding shaft 110. At this time, the second photoelectric sensor 10 is sensed, and the second pneumatic cylinder 1093 on the corresponding material roll fixing assembly 109 is notified to open the shaft seat cover 1095. At this time, the unwinding shaft 110 falls on the top of the Y-shaped frame 7, and the turnover trolley 2 can transport the unwinding unwinding shaft 110 away.

[0036] When the raw material roll 113 is located at the second material roll fixing assembly 109 for unloading, the reduction motor 103 stops operating. At this time, the second laser rangefinder 82 senses the unloading shaft 110 and sends a signal to the first electromagnet 84. The first electromagnet 84 is in a powered state, and the slide 813 moves toward the first electromagnet 84. The slide 813 is fixed by magnetic attraction. The slide 813 drives the servo motor 86 to move toward the unloading shaft 110. When the pressure sensor 88 senses the pressure of the unloading shaft 110, the signal is sequentially The double-headed electric push rod 89, the servo motor 86 and the first electric push rod 91 are sent, and the telescopic ends of both ends of the double-headed electric push rod 89 drive the clamping plate 811 to move toward the unloading shaft 110 through the mounting bracket 810, until the anti-slip pads 812 set on one side of the two clamping plates 811 are clamped and fixed with the outer side of the unloading shaft 110, and the servo motor 86 drives the mounting cover 87 to rotate, and at this time, the clamped unloading shaft 110 is located in the material reel seat 1092 and rotates counterclockwise, and the disconnected end of the raw material roll 113 rotates along the material roll;

[0037] When the first electric push rod 91 receives the signal, the telescopic end of the first electric push rod 91 drives the fixing frame 92 to push forward, so that the outer side of the raw material roll 113 on one side of the lifting plate 95 is in contact with each other. When the third laser rangefinder 93 detects the fault of the raw material roll 113, the signal is first transmitted to the servo motor 86 and then to the second electric push rod 97. The power drive end of the servo motor 86 briefly rotates in the opposite direction and then stops operating. The broken layer of the raw material roll 113 is shoveled up by the setting of the lifting plate 95, and the broken end of the raw material roll 113 is located on the lifting plate 95. 5, at this time, the telescopic ends of the two second electric push rods 97 jointly drive the clamping plate 98 to move toward the starting plate 95 until the anti-skid particles 99 set on one side of the clamping plate 98 come into contact with the material, and the raw material is clamped and fixed between the starting plate 95 and the clamping plate 98; after the raw material is clamped and fixed, the alarm 910 sounds to remind the staff to proceed to the next step; when the telescopic end of the second electric push rod 97 is retracted and the telescopic end of the double-headed electric push rod 89 is extended to expand the two clamping plates 811, the raw material roll 113 can be unwound.

[0038] Embodiment 2

[0039] like Figures 1 to 9In the second embodiment, other structures remain unchanged. The difference from the first embodiment is that the material roll is bonded to the unwinding shaft 110. In order to unwind all the materials on the unwinding shaft 110, when the first laser rangefinder 111 detects that the diameter of the raw material roll 113 reaches the specified minimum value, the first laser rangefinder 111 sends a signal to the first electric push rod 91. At this time, the telescopic end of the first electric push rod 91 drives the fixing frame 92 to continue to move forward, so that the scraper 96 and one side of the lifting plate 95 are in contact with the unwinding shaft 110. The outer side of the material shaft 110 is in contact with each other. When the raw material roll 113 rotates and unwinds, the scraper 96 and the material pick-up plate 95 can scrape off the place where the material is bonded to the unwinding shaft 110, thereby improving the unwinding effect. The servo motor 86 drives the unwinding shaft 110 to rotate counterclockwise. When the two clamping plates 811 leave the unwinding shaft 110, the raw material roll 113 rotates clockwise when unwinding. The scraper 96 and the material pick-up plate 95 are both arc-shaped and can fit the outer sides of the unwinding shaft 110 and the raw material roll 113 respectively.

[0040] When the unwinding shaft 110 is subsequently transported, the first electromagnet 84 stops operating, and the second electromagnet 85 is energized. The slide 813 moves toward the second electromagnet 85. After the distance between the two clamping plates 811 is enlarged, the two clamping plates 811 are moved away from the unwinding shaft 110. At this time, the automatic roll changing mechanism 1 can continue to operate.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic roll-changing and pipe-unloading device, comprising an automatic roll-changing mechanism (1) and a turnover trolley (2), characterized in that: A material discharge trough (3) is arranged on the top of the turnover trolley (2), fixed plates (4) are installed on both sides of the bottom of the turnover trolley (2), a first pneumatic cylinder (5) is installed on the top of the two fixed plates (4), a first photoelectric sensor (6) is arranged on the top of one of the fixed plates (4) and adjacent to the first pneumatic cylinder (5), a Y-shaped frame (7) is installed on the telescopic ends of the two first pneumatic cylinders (5), a second photoelectric sensor (10) is arranged on one end of the top of the Y-shaped frame (7), a clamping rotating assembly (8) is arranged on both sides of the outside of the automatic roll changing mechanism (1), and a fault material lifting assembly (9) is arranged on one side of the inside of the automatic roll changing mechanism (1); The automatic roll-changing mechanism (1) comprises a machine wall (101) and a material discharge shaft (110), a raw material roll (113) is arranged outside the material discharge shaft (110), a support plate (102) is installed on one side of the bottom of the machine wall (101), a reduction motor (103) is installed on one side of the inner side of the support plate (102), and sprocket wheel 1 (104), sprocket wheel 2 (105) and sprocket wheel 3 (106) are connected to the two ends of the inner side of the automatic roll-changing mechanism (1), and one of the sprocket wheels 1 (104) and the reduction motor (103) is connected to the other end of the sprocket wheel 1 (104). 3) are connected, the two sprocket wheels 1 (104) are commonly equipped with a connecting rod (114), the exteriors of the sprocket wheels 1 (104) and sprocket wheel 2 (105) are commonly provided with a chain 1 (107), the exteriors of the sprocket wheels 2 (105) and sprocket wheels 3 (106) are commonly provided with a chain 2 (108), the exteriors of the chain wheels 2 (108) are provided with three groups of material roll fixing components (109), and the interior side of the machine wall (101) is respectively provided with a first laser rangefinder (111) and a third photoelectric sensor (112).

2. The automatic roll changing and unloading device according to claim 1 is characterized in that: The material roll fixing assembly (109) includes a mounting plate (1091) mounted on the outside of the second chain (108), and a material roll seat (1092) and a second pneumatic cylinder (1093) are respectively mounted on the top of the mounting plate (1091). A groove corresponding to the material unwinding shaft (110) is provided on the top of the material roll seat (1092), and a connecting shaft (1094) is connected to one end of the top of the material roll seat (1092).

3. The automatic roll changing and unloading device according to claim 2 is characterized in that: The outside of the connecting shaft (1094) is installed with a shaft seat cover (1095), and the outer side of the shaft seat cover (1095) is installed with a mounting seat (1096). The telescopic end of the second pneumatic cylinder (1093) is installed with a connecting plate (1097), and the connecting plate (1097) is rotatably connected to the inside of the mounting seat (1096).

4. The automatic roll changing and unloading device according to claim 1 is characterized in that: The clamping and rotating assembly (8) comprises a connecting frame (81) installed on the outside of the automatic roll-changing mechanism (1); a second laser rangefinder (82) is installed on one side of the interior of the connecting frame (81); a slide groove (83) is provided at the bottom of the connecting frame (81); a first electromagnet (84) and a second electromagnet (85) are respectively provided on both sides of the interior of the slide groove (83); a slide seat (813) is connected to the interior of the slide groove (83); and the slide seat (813) is made of iron.

5. The automatic roll changing and pipe unloading device according to claim 4 is characterized in that: A servo motor (86) is installed at the top of the slide seat (813), and the power drive end of the servo motor (86) is connected to a mounting cover (87). A pressure sensor (88) is arranged at the front center of the mounting cover (87). A double-headed electric push rod (89) is arranged inside the mounting cover (87). Both telescopic ends of the double-headed electric push rod (89) are installed with mounting brackets (810), and one side of the two mounting brackets (810) is installed with a clamping plate (811), and the inner side of the two clamping plates (811) is provided with an anti-slip pad (812).

6. The automatic roll changing and unloading device according to claim 1 is characterized in that: The fault material starting assembly (9) comprises a first electric push rod (91) installed on one side of the automatic roll changing mechanism (1), a fixed frame (92) is installed on the telescopic end of the first electric push rod (91), and a third laser rangefinder (93) and an alarm (910) are respectively installed on one side of the interior of the fixed frame (92).

7. The automatic coil changing and pipe unloading device according to claim 6 is characterized in that: A frame plate (94) is installed at one end of the bottom of the fixed frame (92), a material lifting plate (95) is installed at one end of the top of the frame plate (94), and a scraper (96) is installed at one end of the bottom of the frame plate (94), and both the material lifting plate (95) and the scraper (96) are arc surfaces.

8. The automatic roll changing and pipe unloading device according to claim 7 is characterized in that: Two symmetrical second electric push rods (97) are installed on one side of the interior of the fixing frame (92), and the telescopic ends of the two second electric push rods (97) are both installed with clamping plates (98), and the outer side of the clamping plates (98) is provided with a plurality of groups of equidistant anti-skid particles (99), and the anti-skid particles (99) are made of rubber.

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