Raw material belt automatic stretching equipment

Abstract

The utility model belongs to the technical field of raw material belt production, and particularly relates to automatic raw material belt stretching equipment which comprises a collecting box and a stretching box, the collecting box is located on the left side of the stretching box, and a first stretching mechanism, a second stretching mechanism, a third stretching mechanism and a fourth stretching mechanism are arranged in the stretching box respectively. According to the automatic raw material belt stretching equipment, the whole production process from discharging, preheating, stretching, quenching, shaping, cooling to rolling and cutting is highly automatic, manual operation is greatly reduced, and the production efficiency is improved; through a continuous automatic process, the pause and waiting time in production is reduced, and the speed and the yield of a production line are remarkably improved; automatic control and accurate stretching, quenching, shaping, cooling and cutting processes ensure the quality consistency of the raw material belt, and the defective rate is reduced; the design of the equipment allows rapid adjustment to adapt to production of raw material belts of different specifications and materials.

Description

Technical Field

[0001] The utility model relates to the technical field of raw tape production, in particular to an automatic raw tape stretching device. Background Art

[0002] In the existing raw tape stretching process, most of the stretching operations are performed only during transportation. This stretching method will result in uneven stretching, affecting the quality of the final product. When cutting the raw tape, a cutting blade is currently directly set for sliding cutting. During cutting, it is easy to cause uneven cutting edges or dimensional deviations under the toughness of tension, affecting product quality and reducing production efficiency. Therefore, an automatic raw tape stretching device is needed. Utility Model Content

[0003] Based on the existing technical problems, the utility model proposes an automatic stretching device for raw tape.

[0004] The utility model proposes an automatic stretching device for raw tape, comprising a collecting box and a stretching box, wherein the collecting box is located on the left side of the stretching box, and a first stretching mechanism, a second stretching mechanism, a third stretching mechanism and a fourth stretching mechanism are respectively arranged inside the stretching box, and a material discharge mechanism is also arranged on the left side of the stretching box.

[0005] The unloading mechanism realizes the action of automatic unloading and conveying of the raw tape, the first stretching mechanism realizes the action of preheating and stretching the raw tape, the second stretching mechanism realizes the action of heating and stretching the raw tape, the third stretching mechanism realizes the action of quenching and stretching the raw tape, and the fourth stretching mechanism realizes the action of shaping and pulling.

[0006] A cooling mechanism, a cutting mechanism and a winding mechanism are respectively provided in front of the collecting box. The cooling mechanism realizes the cooling of the raw tape output by the fourth stretching mechanism, the cutting mechanism realizes the cutting of the cooled raw tape after the winding is completed, and the winding mechanism realizes the winding of the raw tape after the stretching is completed.

[0007] Preferably, the unloading mechanism includes a bottom frame installed on the left side of the stretching box, an adjusting seat is fixedly installed on the top of the bottom frame, a sliding seat is slidably inserted into the surface of the adjusting seat, and the sliding seat is moved horizontally by the screw transmission inside the adjusting seat, a placement seat is fixedly installed on the top of the sliding seat, and the tops of both ends of the placement seat are rotatably clamped with a unwinding shaft, the arc surface of the unwinding shaft is limitedly installed with the inner wall of the roller of the raw tape, the left bottom end of the bottom frame is also rotatably connected to the guide roller through the bearing seat, and the left middle surface of the stretching box is rotatably connected to the conveying roller through the bearing seat, and the input shaft at one end of the conveying roller is also fixedly installed with an input sprocket, and the left surface of the stretching box is also provided with a feed trough and a discharge trough, and the feed trough is located at the top of the discharge trough.

[0008] Preferably, the first stretching mechanism includes a first stretching roller, one end of the three first stretching rollers passes through and extends to the back of the stretching box, the back of the stretching box is connected to a connecting seat by a screw thread, the top of each connecting seat is rotatably connected to the rotating shaft of the corresponding first stretching roller through a bearing seat, one end of the three first stretching rollers is fixedly installed with a first stretching sprocket, the back of the stretching box is also fixedly installed with a connecting column, one end of the four connecting columns is fixedly installed with a motor base plate, the surface of the motor base plate is fixedly installed with a first stretching motor, the output end of the first stretching motor is fixedly installed with a driving sprocket through a coupling, the inner wall of the groove of the driving sprocket and the inner wall of the groove of the multiple first stretching sprockets and the inner wall of the groove of the input sprocket are all driven by a chain, and the bottom of the three first stretching rollers is provided with a preheating tube, and the multiple preheating tubes are linearly arranged.

[0009] The second stretching mechanism includes a second stretching roller, and the eight second stretching rollers are distributed in two groups up and down, with four second stretching rollers in each group. The input ends of the eight second stretching rollers all pass through and extend to the back of the stretching box, and the input end of each second stretching roller is installed with a support base plate through a bearing seat. A second stretching motor is also fixedly installed on one side of the support base plate. The output end of the second stretching motor is fixedly installed with the input end of the second stretching roller through a coupling. Heating tubes are provided at the bottom of the eight second stretching rollers, and multiple heating tubes are arranged linearly.

[0010] Preferably, the third stretching mechanism includes a third stretching roller, the fourth stretching mechanism includes a fourth stretching roller, one end of the plurality of third stretching rollers and one end of the plurality of fourth stretching rollers all pass through and extend to the back side of the stretching box, a clamping seat is also fixedly installed on the back side of the stretching box, the tops of the plurality of clamping seats are respectively fixedly installed with the input ends of the plurality of third stretching rollers and the input ends of the plurality of fourth stretching rollers through bearing seats, the input ends of the plurality of third stretching rollers and the input ends of the plurality of fourth stretching rollers are connected by chain transmission, a transmission motor is also fixedly installed on the bottom back side of the stretching box, and the output end of the transmission motor is connected to the chain transmission through an output sprocket;

[0011] The bottoms of the multiple third stretching rollers are provided with quenching tubes, and the multiple quenching tubes are linearly arranged inside the stretching box. The bottoms of the multiple fourth stretching rollers are provided with shaping tubes, and the multiple shaping tubes are linearly arranged at the bottom of the stretching box.

[0012] Preferably, the cooling mechanism includes cooling rollers, and the three cooling rollers are arranged in a triangle, and the input ends of the three cooling rollers pass through and extend to the back of the collecting box. A bearing mounting plate is fixedly installed on the back of the collecting box, and the tops of the multiple bearing mounting plates are fixedly installed on the input end of each cooling roller through bearing seats. A cooling sprocket is fixedly installed on the input end of each cooling roller, and a cooling motor is also fixedly installed on the back of the collecting box. The output end of the cooling motor is connected to the chain drive through a cooling sprocket.

[0013] Preferably, the winding mechanism includes a winding shaft, the arc surface of the winding shaft is wound around and connected to the stretched material strip, one end of the winding shaft passes through and extends to the back of the collection box, and one end of the winding shaft is fixedly installed with a winding motor through a coupling, and the winding motor is fixedly installed to the back of the collection box.

[0014] Preferably, the cutting mechanism includes a cutting auxiliary roller, one end of the cutting auxiliary roller is connected to the inner rotation of the collection box through a bearing, a cutting vertical rod is provided on one side of the cutting auxiliary roller, one end of multiple cutting vertical rods are fixedly installed on the surface of the collection box, one end of four cutting vertical rods are fixedly installed with a cutting mounting plate, the surface of the cutting mounting plate is fixedly installed with a connecting rod, one end of multiple connecting rods are fixedly installed with an auxiliary plate, the surface of the auxiliary plate and the surface of the cutting mounting plate are both rotatably connected with an adjusting shaft through a bearing, one end of the adjusting shaft is fixedly installed with a rotating wheel, the arc surface of the adjusting shaft is provided with a diffusion arc groove, the surface of the auxiliary plate and the surface of the cutting mounting plate are also fixedly installed with a guide column, the surface of the guide column is slidably plugged with a cutting blade, and one end of multiple cutting blades are slidably plugged with the inside of the diffusion arc groove.

[0015] The beneficial effects of the present invention are:

[0016] The entire production process of this device is highly automated, from unloading, preheating, stretching, quenching, shaping, cooling to winding and cutting, which greatly reduces manual operations and improves production efficiency. Through continuous automated processes, pauses and waiting times in production are reduced, and the speed and output of the production line are significantly improved. Automated control and precise stretching, quenching, shaping, cooling and cutting processes ensure the quality consistency of the raw tape and reduce the defective rate. The design of the equipment allows for rapid adjustment to adapt to the production of raw tapes of different specifications and materials, enhancing the versatility and market competitiveness of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of an automatic stretching device for raw tape;

[0018] Figure 2 This is a three-dimensional diagram of the support base structure of a raw tape automatic stretching equipment;

[0019] Figure 3 This is a three-dimensional diagram of the bearing mounting plate structure of a raw tape automatic stretching device;

[0020] Figure 4 A three-dimensional diagram of a cutting mechanism of an automatic raw tape stretching device;

[0021] Figure 5 This is a three-dimensional diagram of the unwinding mechanism of an automatic raw tape stretching device.

[0022] In the figure: 1. Collection box; 2. Stretching box; 3. First stretching mechanism; 31. First stretching roller; 32. Connecting seat; 33. First stretching sprocket; 34. Connecting column; 35. Motor base plate; 36. First stretching motor; 37. Driving sprocket; 38. Preheating tube; 4. Second stretching mechanism; 41. Second stretching roller; 42. Support base plate; 43. Second stretching motor; 44. Heating tube; 5. Third stretching mechanism; 51. Third stretching roller; 52. Clamping seat; 53. Drive motor; 54. Quenching tube; 6. Fourth stretching mechanism; 61. Fourth stretching roller; 62. Shaping tube; 7. Unloading mechanism; 71. Bottom frame; 7 2. Adjustment seat; 73. Sliding seat; 74. Placement seat; 75. Unwinding shaft; 76. Guide roller; 77. Conveyor roller; 78. Input sprocket; 79. Feed chute; 710. Discharge chute; 8. Cooling mechanism; 81. Cooling roller; 82. Bearing mounting plate; 83. Cooling sprocket; 84. Cooling motor; 9. Cutting mechanism; 91. Cutting auxiliary roller; 92. Cutting vertical pole; 93. Cutting mounting plate; 94. Connecting rod; 95. Auxiliary plate; 96. Adjustment shaft; 97. Rotating wheel; 98. Diffusion arc groove; 99. Guide column; 910. Cutting blade; 10. Winding mechanism; 101. Winding shaft; 102. Winding motor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figure 1-Figure 5 A raw tape automatic stretching device includes a collecting box 1 and a stretching box 2. The collecting box 1 is located on the left side of the stretching box 2. The interior of the stretching box 2 is respectively provided with a first stretching mechanism 3, a second stretching mechanism 4, a third stretching mechanism 5 and a fourth stretching mechanism 6. A material discharge mechanism 7 is also provided on the left side of the stretching box 2.

[0025] The top of the adjusting seat 72 is fixedly provided with a placement seat 74, and the top of each end of the placement seat 74 is rotatably connected to the unwinding shaft 75. The arc surface of the unwinding shaft 75 is limitedly installed with the inner wall of the drum of the raw tape. The left bottom end of the bottom frame 71 is also rotatably connected to the guide roller 76 through the bearing seat. The left middle surface of the stretching box 2 is rotatably connected to the conveying roller 77 through the bearing seat. The input shaft at one end of the conveying roller 77 is also fixedly provided with an input sprocket 78. The left surface of the stretching box 2 is also provided with a feed trough 79 and a discharge trough 710. The feed trough 79 is located at the top of the discharge trough 710.

[0026] Specifically, by setting up a discharge mechanism 7, the raw tape can be automatically discharged and conveyed, thereby improving production efficiency and reducing labor costs; the sliding seat 73 is driven by a screw to move horizontally, and can be adjusted according to the different widths of the raw tape to adapt to raw tapes of different specifications; the two ends of the unwinding shaft 75 are rotatably connected to the placement seat 74, which is convenient for rapid replacement of the raw tape and improves the continuous operation capacity of the production line; the setting of the guide roller 76 and the conveying roller 77 ensures that the raw tape runs smoothly during the conveying process and reduces the problem of uneven stretching caused by unstable conveying.

[0027] In order to realize the action of preheating and stretching the raw tape, a first stretching mechanism 3 is set up, including a first stretching roller 31. One end of the three first stretching rollers 31 passes through and extends to the back of the stretching box 2. The back of the stretching box 2 is connected to a connecting seat 32 by a screw thread. The top of each connecting seat 32 is rotatably connected to the rotating shaft of the corresponding first stretching roller 31 through a bearing seat. One end of the three first stretching rollers 31 is fixedly installed with a first stretching sprocket 33. The back of the stretching box 2 is also fixedly installed with a connecting column 34. One end of the four connecting columns 34 is fixedly installed with a motor base plate 35. The surface of the motor base plate 35 is fixedly installed with a first stretching motor 36. The output end of the first stretching motor 36 is fixedly installed with a driving sprocket 37 through a coupling. The inner wall of the groove of the driving sprocket 37 and the inner wall of the groove of the multiple first stretching sprockets 33 and the inner wall of the groove of the input sprocket 78 are all driven by a chain. The bottom of the three first stretching rollers 31 is provided with a preheating tube 38, and the multiple preheating tubes 38 are linearly arranged.

[0028] Specifically, by setting a preheating tube 38 at the bottom of the first stretching roller 31, the raw tape can be uniformly preheated, which helps to improve the stretching effect and product quality; the preheating temperature is controlled at 150-170 degrees Celsius; the preheated raw tape material becomes softer and easier to stretch, thereby improving the stretching efficiency; the active sprocket 37 is driven by a motor to realize the automation of the stretching action, reduce manual operation, and improve the automation level of the production line.

[0029] In order to realize the action of heating and stretching the raw tape, a second stretching mechanism 4 is set, including a second stretching roller 41. The eight second stretching rollers 41 are distributed in two groups up and down, with four second stretching rollers 41 in each group. The input ends of the eight second stretching rollers 41 all pass through and extend to the back of the stretching box 2, and the input end of each second stretching roller 41 is installed with a support base plate 42 through a bearing seat. A second stretching motor 43 is also fixedly installed on one side of the support base plate 42. The output end of the second stretching motor 43 is fixedly installed with the input end of the second stretching roller 41 through a coupling. A heating tube 44 is provided at the bottom of the eight second stretching rollers 41, and multiple heating tubes 44 are arranged linearly.

[0030] Specifically implemented in this way, the second stretching mechanism 4 combines heating and stretching actions together, and can directly heat the raw tape during the stretching process, thereby improving production efficiency; the raw tape material after heating is softer and easier to achieve uniform stretching, thereby improving the stretching quality and performance of the product, and the heating temperature is controlled between 250-280 degrees Celsius. Each second stretching roller 41 is equipped with an independent second stretching motor 43, which is connected to the roller input end through a coupling, and can achieve precise stretching force control, so that the rotation speed of each second stretching roller 41 behind it is 10%-15% higher than the previous one, thereby achieving the stretching and thinning of the raw tape.

[0031] In order to realize the quenching and stretching action of the raw strip, the fourth stretching mechanism 6 realizes the shaping and pulling action; the third stretching mechanism 5 is provided to include a third stretching roller 51, and the fourth stretching mechanism 6 includes a fourth stretching roller 61. One end of multiple third stretching rollers 51 and one end of multiple fourth stretching rollers 61 both pass through and extend to the back of the stretching box 2. A clamping seat 52 is also fixedly installed on the back of the stretching box 2. The tops of the multiple clamping seats 52 are respectively fixedly installed with the input ends of the multiple third stretching rollers 51 and the input ends of the multiple fourth stretching rollers 61 through bearing seats. The input ends of the multiple third stretching rollers 51 and the input ends of the multiple fourth stretching rollers 61 are both connected by chain transmission. A transmission motor 53 is also fixedly installed on the bottom of the back of the stretching box 2. The output end of the transmission motor 53 is connected to the chain transmission through an output sprocket.

[0032] Specifically implemented in this way, through the cooperation of the third stretching mechanism 5 and the fourth stretching mechanism 6, the raw tape can be quenched during the stretching process, thereby completing the stretching and heat treatment process in one step; the fourth stretching mechanism 6 realizes shaping pulling, which helps the raw tape to be quickly shaped after quenching and maintain a stable shape and size; the continuous quenching stretching and shaping stretching reduces the intermediate links and improves the continuous operation capacity and production efficiency of the production line; the output end of the transmission motor 53 is connected to the chain drive through the output sprocket, and the stretching speed and strength can be accurately controlled by controlling the speed of the motor.

[0033] A quenching tube 54 is provided at the bottom of the multiple third stretching rollers 51, and the multiple quenching tubes 54 are linearly arranged inside the stretching box 2. A shaping tube 62 is provided at the bottom of the multiple fourth stretching rollers 61, and the multiple shaping tubes 62 are linearly arranged at the bottom of the stretching box 2.

[0034] Specifically implemented in this way, the linear arrangement of the quenching tubes 54 can ensure that the raw tape is evenly quenched during the stretching process, avoiding local overheating or insufficient cooling, and improving the consistency of material properties; through precise control of quenching and shaping, the product quality of the raw tape can be significantly improved to meet higher industrial standards; the quenching temperature is controlled between 320-350 degrees Celsius, and the shaping temperature is set between 230-370 degrees Celsius.

[0035] A cooling mechanism 8, a cutting mechanism 9 and a winding mechanism 10 are respectively provided in front of the collecting box 1.

[0036] In order to realize the cooling action of the raw tape output by the fourth stretching mechanism 6, a cooling mechanism 8 is provided including a cooling roller 81. The three cooling rollers 81 are arranged in a triangle, and the input ends of the three cooling rollers 81 pass through and extend to the back of the collecting box 1. A bearing mounting plate 82 is fixedly installed on the back of the collecting box 1. The tops of the multiple bearing mounting plates 82 are fixedly installed on the input end of each cooling roller 81 through the bearing seat respectively. A cooling sprocket 83 is fixedly installed on the input end of each cooling roller 81. A cooling motor 84 is also fixedly installed on the back of the collecting box 1. The output end of the cooling motor 84 is connected to the chain drive through the cooling sprocket 83.

[0037] Specifically, the three cooling rollers 81 are arranged in a triangle to ensure that the raw tape is evenly cooled during the cooling process, thereby avoiding material deformation or performance degradation due to uneven cooling. The design and arrangement of the cooling rollers 81 enable the raw tape to be quickly cooled after stretching, thereby improving production efficiency and controlling the cooling temperature between 10 and 15 degrees Celsius. By cooling, the size of the raw tape after stretching can be quickly fixed to prevent size fluctuations due to temperature changes.

[0038] In order to realize the action of winding up the raw tape after stretching, a winding mechanism 10 is provided, including a winding shaft 101, the arc surface of the winding shaft 101 is wound and connected with the stretched material tape, one end of the winding shaft 101 passes through and extends to the back of the collection box 1, and a winding motor 102 is fixedly installed on one end of the winding shaft 101 through a coupling, and the winding motor 102 is fixedly installed on the back of the collection box 1.

[0039] Specifically implemented in this way, the winding motor 102 drives the winding shaft 101, so that the raw tape can be automatically wound after being stretched, reducing manual operations and improving the degree of production automation; automatic winding can quickly complete the collection of the tape, avoid pauses in the production process, and improve overall production efficiency; the uniformity and stability of the winding action help to keep the tape neat and tight, and avoid damage or loosening of the tape caused by improper manual winding.

[0040] In order to realize the action of cutting the cooled raw tape after the winding is completed, a cutting mechanism 9 is set up, including a cutting auxiliary roller 91, one end of the cutting auxiliary roller 91 is connected to the internal rotation of the collection box 1 through a bearing, and a cutting vertical rod 92 is provided on one side of the cutting auxiliary roller 91, one end of multiple cutting vertical rods 92 are fixedly installed on the surface of the collection box 1, one end of the four cutting vertical rods 92 are fixedly installed with a cutting mounting plate 93, and a connecting rod 94 is fixedly installed on the surface of the cutting mounting plate 93, and one end of multiple connecting rods 94 are fixedly installed with an auxiliary plate 95, and the surface of the auxiliary plate 95 and the surface of the cutting mounting plate 93 are both rotatably connected with an adjusting shaft 96 through a bearing, and a rotating wheel 97 is fixedly installed on one end of the adjusting shaft 96. A diffuse arc groove 98 is opened on the arc surface of the adjusting shaft 96, and a guide column 99 is also fixedly installed on the surface of the auxiliary plate 95 and the surface of the cutting mounting plate 93. A cutting blade 910 is slidably inserted on the surface of the guide column 99, and one end of multiple cutting blades 910 are slidably inserted into the interior of the diffuse arc groove 98.

[0041] Specifically implemented in this way, through the cooperation of the cutting auxiliary roller 91 and the cutting blade 910, precise cutting of the raw tape can be achieved, ensuring the neatness and accuracy of the cutting edge; the setting of the cutting mechanism 9 makes the cutting process automated, reduces manual intervention, and improves production efficiency; the design of the adjusting shaft 96 and the rotating wheel 97 allows adjustment according to different tape widths to adapt to the cutting of raw tapes of different specifications; the sliding plug-in design of the cutting blade 910 and the diffusion arc groove 98 can adjust the distance between each blade, and can automatically adjust the cutting position according to the width of the raw tape, thereby improving cutting efficiency.

[0042] The entire production process of this device is highly automated, from unloading, preheating, stretching, quenching, shaping, cooling to winding and cutting, which greatly reduces manual operations and improves production efficiency. Through continuous automated processes, pauses and waiting times in production are reduced, and the speed and output of the production line are significantly improved. Automated control and precise stretching, quenching, shaping, cooling and cutting processes ensure the quality consistency of the raw tape and reduce the defective rate. The design of the equipment allows for rapid adjustment to adapt to the production of raw tapes of different specifications and materials, enhancing the versatility and market competitiveness of the equipment.

[0043] Working principle: During the stretching operation, the raw tape is placed above the unwinding mechanism 7, and the unwinding operation of the raw tape is controlled by the rotation of the unwinding shaft 75. One end of the raw tape is controlled to enter the interior of the first stretching mechanism 3 first to realize the preheating stretching operation. After the preheating stretching, it enters the interior of the second stretching mechanism 4 to realize the heating stretching operation. The rotation speed of each second stretching roller 41 in the second stretching is faster than the previous rotation speed, so that the transmitted raw tape is stretched and thinned, and then enters the interior of the third stretching mechanism 5 to realize quenching stretching, and then input into the interior of the fourth stretching mechanism 6 for shaping stretching. Finally, after the stretching is completed, it is transmitted to the cooling mechanism 8 to reduce the stretching temperature, and finally the winding mechanism 10 rotates and rewinds. When the winding is completed, it is cut by the cutting mechanism 9, so that the one that has been wound up is disassembled and replaced with a new one to continue winding.

[0044] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A raw tape automatic stretching device, comprising a collecting box (1) and a stretching box (2), characterized in that: The collecting box (1) is located on the left side of the stretching box (2), and a first stretching mechanism (3), a second stretching mechanism (4), a third stretching mechanism (5), and a fourth stretching mechanism (6) are respectively provided inside the stretching box (2). A discharge mechanism (7) is also provided on the left side of the stretching box (2); The unloading mechanism (7) realizes the action of automatically unloading and conveying the raw tape, the first stretching mechanism (3) realizes the action of preheating and stretching the raw tape, the second stretching mechanism (4) realizes the action of heating and stretching the raw tape, the third stretching mechanism (5) realizes the action of quenching and stretching the raw tape, and the fourth stretching mechanism (6) realizes the action of shaping and stretching; A cooling mechanism (8), a cutting mechanism (9) and a winding mechanism (10) are respectively provided in front of the collecting box (1); the cooling mechanism (8) cools the raw tape output by the fourth stretching mechanism (6); the cutting mechanism (9) cuts the cooled raw tape after winding; and the winding mechanism (10) winds up the raw tape after stretching.

2. The automatic stretching device for raw tape according to claim 1, characterized in that: The unloading mechanism (7) includes a bottom frame (71) installed on the left side of the stretching box (2), an adjusting seat (72) is fixedly installed on the top of the bottom frame (71), a sliding seat (73) is slidably inserted on the surface of the adjusting seat (72), and the sliding seat (73) is moved in the horizontal direction by the screw drive inside the adjusting seat (72), a placement seat (74) is fixedly installed on the top of the sliding seat (73), and the tops of both ends of the placement seat (74) are rotatably connected with an unwinding shaft (75), and the unwinding shaft (7 5) is installed with the inner wall of the roller of the raw material belt in a limited manner, the left bottom end of the bottom frame (71) is also rotatably connected to a guide roller (76) through a bearing seat, the left middle surface of the stretching box (2) is rotatably connected to a conveying roller (77) through a bearing seat, and an input sprocket (78) is fixedly installed on the input shaft at one end of the conveying roller (77), and a feed trough (79) and a discharge trough (710) are also provided on the left surface of the stretching box (2), and the feed trough (79) is located at the top of the discharge trough (710).

3. The automatic stretching device for raw tape according to claim 2, characterized in that: The first stretching mechanism (3) includes a first stretching roller (31), one end of each of the three first stretching rollers (31) passes through and extends to the back of the stretching box (2), the back of the stretching box (2) is connected to a connecting seat (32) by a screw thread, the top of each connecting seat (32) is rotatably connected to the rotating shaft of the corresponding first stretching roller (31) through a bearing seat, one end of each of the three first stretching rollers (31) is fixedly installed with a first stretching sprocket (33), the back of the stretching box (2) is also fixedly installed with a connecting column (34), and the four connecting seats (32) are connected to the rotating shaft of the corresponding first stretching roller (31) by a bearing seat. One end of the column (34) is fixedly mounted with a motor base plate (35), a first stretching motor (36) is fixedly mounted on the surface of the motor base plate (35), an active sprocket (37) is fixedly mounted on the output end of the first stretching motor (36) via a coupling, the inner wall of the groove of the active sprocket (37) and the inner wall of the groove of the plurality of first stretching sprockets (33) and the inner wall of the groove of the input sprocket (78) are all driven by a chain, and a preheating tube (38) is provided at the bottom of each of the three first stretching rollers (31), and the plurality of preheating tubes (38) are linearly arranged. The second stretching mechanism (4) includes a second stretching roller (41), and the eight second stretching rollers (41) are distributed in two groups up and down, with four second stretching rollers (41) in each group. The input ends of the eight second stretching rollers (41) all pass through and extend to the back of the stretching box (2), and the input end of each second stretching roller (41) is installed with a support base plate (42) through a bearing seat, and a second stretching motor (43) is also fixedly installed on one side of the support base plate (42). The output end of the second stretching motor (43) is fixedly installed with the input end of the second stretching roller (41) through a coupling. A heating tube (44) is provided at the bottom of the eight second stretching rollers (41), and the plurality of heating tubes (44) are linearly arranged.

4. The automatic stretching device for raw tape according to claim 1, characterized in that: The third stretching mechanism (5) includes a third stretching roller (51), and the fourth stretching mechanism (6) includes a fourth stretching roller (61). One end of the plurality of third stretching rollers (51) and one end of the plurality of fourth stretching rollers (61) are both passed through and extended to the back of the stretching box (2). A clamping seat (52) is also fixedly installed on the back of the stretching box (2). The tops of the plurality of clamping seats (52) are respectively fixedly installed with the input ends of the plurality of third stretching rollers (51) and the input ends of the plurality of fourth stretching rollers (61) through bearing seats. The input ends of the plurality of third stretching rollers (51) and the input ends of the plurality of fourth stretching rollers (61) are both connected by chain transmission. A transmission motor (53) is also fixedly installed on the bottom of the back of the stretching box (2), and the output end of the transmission motor (53) is connected to the chain transmission through an output sprocket. A quenching tube (54) is provided at the bottom of the plurality of third stretching rollers (51), and the plurality of quenching tubes (54) are linearly arranged and distributed inside the stretching box (2). A shaping tube (62) is provided at the bottom of the plurality of fourth stretching rollers (61), and the plurality of shaping tubes (62) are linearly arranged and distributed at the bottom of the stretching box (2).

5. The automatic stretching device for raw tape according to claim 1, characterized in that: The cooling mechanism (8) includes a cooling roller (81), and the three cooling rollers (81) are arranged in a triangle, and the input ends of the three cooling rollers (81) pass through and extend to the back of the collecting box (1). A bearing mounting plate (82) is fixedly installed on the back of the collecting box (1), and the tops of the multiple bearing mounting plates (82) are fixedly installed with the input end of each cooling roller (81) through a bearing seat, and a cooling sprocket (83) is fixedly installed on the input end of each cooling roller (81). A cooling motor (84) is also fixedly installed on the back of the collecting box (1), and the output end of the cooling motor (84) is connected to the chain drive through the cooling sprocket (83).

6. The automatic stretching device for raw tape according to claim 1, characterized in that: The reeling mechanism (10) includes a reeling shaft (101), the arc surface of the reeling shaft (101) is wound around and connected to the stretched material strip, one end of the reeling shaft (101) passes through and extends to the back of the collection box (1), and one end of the reeling shaft (101) is fixedly mounted with a reeling motor (102) via a coupling, and the reeling motor (102) is fixedly mounted to the back of the collection box (1).

7. The automatic stretching device for raw tape according to claim 1, characterized in that: The cutting mechanism (9) comprises a cutting auxiliary roller (91), one end of the cutting auxiliary roller (91) is rotatably connected to the inside of the collection box (1) via a bearing, a cutting vertical rod (92) is provided on one side of the cutting auxiliary roller (91), one end of a plurality of the cutting vertical rods (92) are fixedly mounted on the surface of the collection box (1), one end of four of the cutting vertical rods (92) are fixedly mounted with a cutting mounting plate (93), a connecting rod (94) is fixedly mounted on the surface of the cutting mounting plate (93), and one end of a plurality of the connecting rods (94) are fixedly mounted with an auxiliary plate (95). The surface of the auxiliary plate (95) and the surface of the cutting installation plate (93) are both rotatably connected to an adjusting shaft (96) through a bearing, a rotating wheel (97) is fixedly installed on one end of the adjusting shaft (96), and a diffusion arc groove (98) is opened on the arc surface of the adjusting shaft (96). The surface of the auxiliary plate (95) and the surface of the cutting installation plate (93) are also fixedly installed with a guide column (99), and a cutting blade (910) is slidably inserted on the surface of the guide column (99), and one end of each of the plurality of cutting blades (910) is slidably inserted into the interior of the diffusion arc groove (98).

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