Winding device with winding roller convenient to replace

Abstract

The utility model relates to the technical field of geomembrane winding, and discloses a winding device convenient to replace winding rollers, which comprises two winding rollers and a frame, rotating drums are fixedly arranged at the middle positions of the front and rear ends of the two winding rollers, and positioning plates are rotatably arranged on the peripheries of the four rotating drums. Fixing seats are fixedly arranged at the lower ends of the four rotating cylinders, fixing devices are movably embedded in the upper ends of the four fixing seats, and moving devices are fixedly embedded in the middle positions, close to the front end and the rear end, of the upper end of the frame. According to the geomembrane winding device, the rotating drums at the two ends of the winding roller are fixed to the base through the fixing devices, an operator can disassemble the winding roller conveniently, when the upper winding roller is fully wrapped by a geomembrane, the winding roller can be disassembled, the lower winding roller can be moved to the upper portion through the moving device, and the geomembrane continues to be wound; the time for replacing the wind-up roll is greatly saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of geomembrane winding, in particular to a winding device which is convenient for replacing a winding roller. Background Technique

[0002] A geomembrane is a geosynthetic impermeable material composed of a plastic film as an impermeable base material and a non-woven fabric. The impermeability of the new material geomembrane mainly depends on the impermeability of the plastic film. When storing the geomembrane, a winding device will be used.

[0003] After retrieval, the existing patent (publication number: CN214934638U) "The utility model provides a geomembrane winding and unwinding device, which specifically relates to the field of geotechnical devices, including a feeding roller. Both ends of the feeding roller are provided with first support seats. The upper end of the first support seat is rotationally connected to the rotating shaft of the feeding roller, and the lower end of the first support seat is provided with rollers; at least two pressure rollers are further provided on one side of the feeding roller. A cross beam is provided above the pressure rollers, and a second support seat is provided on the lower side of the cross beam. The second support seat is rotationally connected to the pressure roller; the first support seat and the second support seat are connected by a connecting beam. The utility model can improve the laying efficiency of the geomembrane."

[0004] Although this patented technology realizes the feeding and laying of the geomembrane through the feeding roller and flattens the geomembrane through the pressure roller, it can realize the mechanized laying of the geomembrane, but the feeding roller cannot be fixed, and this technology has the following disadvantages: 1. The above patent cannot fix the feeding roller, making it at risk of falling during rotation; 2. The above patent cannot replace the feeding roller in time to continue winding and unwinding the geomembrane, greatly reducing the work efficiency. Therefore, those skilled in the art have provided a winding device that is convenient for replacing the winding roller to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose a winding device that is convenient for replacing the winding roller, which greatly saves the time for replacing the winding roller and improves the work efficiency.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] A winding device that is convenient for replacing the winding roller includes two winding roller cylinders and a frame. Rotating cylinders are fixedly arranged at the middle positions near the front and rear ends of the two winding roller cylinders. Positioning plates are rotatably arranged around the four rotating cylinders. Fixed seats are fixedly arranged at the lower ends of the four rotating cylinders. Fixing devices are movably embedded at the upper ends of the four fixed seats. Each of the four fixing devices includes two first springs, a pressing block, a square shell, two second springs, a fixing rod, a bottom shell, two clamping blocks, two moving blocks, two third springs, two positioning blocks, and two fourth springs;

[0008] At the middle positions of the front and rear ends of the upper end of the rack, moving devices are fixedly embedded. Each of the two moving devices includes a second lead screw, a second motor, a first moving rod, a toothed pulley one, a toothed belt, a toothed pulley two, two bases, a second moving rod, and a third lead screw.

[0009] Furthermore, two fixing plates are fixedly arranged at one side position of the upper end of the front end of the rack. At the ends of the two fixing plates away from the rack, telescopic rods are fixedly arranged. At the ends of the two telescopic rods away from the two fixing plates, a bottom plate is fixedly arranged.

[0010] Furthermore, a first lead screw is movably embedded at the front end position of one side of the bottom plate. A slide plate is threadedly sleeved on the outer side of the lead screw body of the first lead screw. A first motor is fixedly arranged at the upper end of the slide plate. At the end of the output shaft of the first motor away from the output end, a square block is fixedly arranged.

[0011] Furthermore, square grooves are formed at the ends of the two frontmost rotating cylinders among the four rotating cylinders away from the positioning plate. Two outer shells are fixedly arranged at one side position of the upper end of the front end of the rack. Hydraulic rods are fixedly arranged at the middle positions of the inner walls on both sides of the two outer shells. Two rollers are rotatably arranged at the lower end positions of the inner walls of the front and rear ends of the rack on the other side.

[0012] Furthermore, the second motor is fixedly embedded at the middle position of the upper end of the front end of the rack. The second lead screw is fixedly arranged at the position of the output shaft of the second motor away from the output end. The first moving rod is threadedly sleeved on the outer side of the lead screw body of the second lead screw at the upper end position. The toothed pulley one is fixedly arranged through the outer side of the lead screw body of the second lead screw at the lower end position. The third lead screw is rotatably arranged at one side position of the inner top surface of the rack at the front end.

[0013] Furthermore, the second moving rod is threadedly sleeved on the outer side of the lead screw body of the third lead screw at the lower end position. The toothed pulley two is fixedly arranged through the outer side of the lead screw body of the third lead screw at the lower end position. The toothed belt is movably sleeved on the peripheries of the toothed pulley one and the toothed pulley two, and the toothed belt meshes with the toothed pulley one and the toothed pulley two. The two bases are respectively fixedly arranged at the opposite ends of the first moving rod and the second moving rod.

[0014] Furthermore, two second springs are respectively fixedly arranged at one side position of the upper end of the fixed seat. The square shell is fixedly arranged at the upper ends of the two second springs. The fixed rod is fixedly arranged at the middle position of the lower end of the square shell. The bottom shell is fixedly arranged at the lower end of the fixed rod. The pressing block movably penetrates through the upper end of the square shell. Two first springs are respectively fixedly arranged at the middle positions on both sides of the lower end of the pressing block.

[0015] Furthermore, the two positioning blocks are respectively fixedly arranged at one side position of the inner bottom surface of the base. The two third springs are respectively fixedly arranged at the upper ends of the two positioning blocks. The two moving blocks are respectively fixedly arranged at the upper ends of the two third springs. The two fourth springs are respectively fixedly arranged at the upper positions of the opposite ends of the two moving blocks. The two clamping blocks are respectively fixedly arranged at the ends of the two fourth springs far away from the two moving blocks.

[0016] The utility model has the following beneficial effects:

[0017] 1. For the winding device facilitating the replacement of the winding roller proposed by the utility model, press down the pressing block to drive the fixing rod to move downward, and then drive the bottom shell to move downward to squeeze the two clamping blocks until the two clamping blocks are stuck on the inner bottom surface of the bottom shell to complete the fixation. Press down the square shell so that the lower end of the square shell squeezes the two clamping blocks until the two clamping blocks are pulled out of the bottom shell by the resilience of the two third springs, and then the fixing seat can be removed from the base. The rotating cylinders at both ends of the winding roller are fixed on the base through the fixing device, which is convenient for the operator to disassemble the winding roller and greatly improves the work efficiency.

[0018] 2. For the winding device facilitating the replacement of the winding roller proposed by the utility model, when the upper winding roller is covered with geomembrane, turn on the switches of the two hydraulic rods to make the two hydraulic rods extend to drive the first motor to move and the square block to move out of the square groove. Then press down the square shell so that the lower end of the square shell squeezes the two clamping blocks until the two clamping blocks are pulled out of the bottom shell by the resilience of the two third springs, and then the fixing seat can be removed from the base. Then turn on the switch of the second motor to drive the second screw rod to rotate, so that the first moving rod moves downward, and then drives one of the two bases to move downward, and at the same time drives the first toothed belt pulley to rotate, and then drives the toothed belt to rotate, and then drives the second toothed belt pulley to rotate, and then drives the third screw rod to rotate, so that the second moving rod moves upward, and then drives the other of the two bases to move upward. Then turn the handle at one end of the first screw rod to make the sliding plate drive the first motor to move until the square block aligns with the square groove, and then the geomembrane can be wound again, which greatly saves the time for replacing the winding roller and improves the work efficiency. Description of the Drawings

[0019] Figure 1 is the axonometric schematic diagram of the utility model;

[0020] Figure 2 is the front sectional schematic diagram of the frame of the utility model;

[0021] Figure 3 is the front sectional schematic diagram of the fixing seat of the utility model;

[0022] Figure 4 is the axonometric schematic diagram of the first motor of the utility model.

[0023] Legend Explanation:

[0024] 1. Rewinding roller; 2. Positioning plate; 3. Rack; 4. Roller; 5. Telescopic rod; 6. Rotary drum; 7. Slide plate; 8. Motor 1; 9. Lead screw 1; 10. Fixed plate; 11. Hydraulic rod; 12. Outer shell; 13. Moving device; 1301. Lead screw 2; 1302. Motor 2; 1303. Moving rod 1; 1304. Toothed pulley 1; 1305. Toothed belt; 1306. Toothed pulley 2; 1307. Base; 1308. Moving rod 2; 1309. Lead screw 3; 14. Fixed seat; 15. Fixing device; 1501. Spring 1; 1502. Pressing block; 1503. Square shell; 1504. Spring 2; 1505. Fixed rod; 1506. Bottom shell; 1507. Clamping block; 1508. Moving block; 1509. Spring 3; 1510. Positioning block; 1511. Spring 4; 16. Square groove; 17. Square block; 18. Bottom plate. Detailed implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , an embodiment provided by the present invention: a rewinding device convenient for rewinding roller replacement, including two rewinding rollers 1 and a rack 3. Rotary drums 6 are fixedly arranged at the middle positions of the front and rear ends of the two rewinding rollers 1. Positioning plates 2 are rotatably arranged around the four rotary drums 6. Fixed seats 14 are fixedly arranged at the lower ends of the four rotary drums 6. Fixing devices 15 are movably embedded at the upper ends of the four fixed seats 14. Moving devices 13 are fixedly embedded at the middle positions of the upper ends of the front and rear ends of the rack 3. Two fixed plates 10 are fixedly arranged at one side of the upper end of the front end of the rack 3. Telescopic rods 5 are fixedly arranged at the ends of the two fixed plates 10 away from the rack 3. A bottom plate 18 is fixedly arranged at the ends of the two telescopic rods 5 away from the two fixed plates 10. A lead screw 1 9 is movably embedded at the front end position of one side of the bottom plate 18. A slide plate 7 is threadedly sleeved on the outer side of the lead screw 1 9. A motor 1 8 is fixedly arranged at the upper end of the slide plate 7. A square block 17 is fixedly arranged at the end of the output shaft of the motor 1 8 away from the output end. Square grooves 16 are opened at the ends of the two rotary drums 6 at the front end among the four rotary drums 6 away from the positioning plates 2. Two outer shells 12 are fixedly arranged at one side of the upper end of the front end of the rack 3. Hydraulic rods 11 are fixedly arranged at the middle positions of the inner walls on both sides of the two outer shells 12. Two rollers 4 are rotatably arranged at the lower positions of the inner walls on the other side of the front and rear ends of the rack 3;

[0027] Specifically, the four rotating cylinders 6 facilitate driving the winding roller 1 to rotate. The four fixing seats 14 facilitate fixing the four rotating cylinders 6 on the four bases 1307 respectively. The four fixing devices 15 facilitate fixing the four fixing seats 14 on the four bases 1307. The four fixing seats 14 are respectively fixed on the two moving devices 13 through the four fixing devices 15. The two moving devices 13 facilitate moving up and down to replace the winding roller 1. The two winding rollers 1 move up and down through the two moving devices 13. The two fixing plates 10 facilitate fixing the two telescopic rods 5. The two telescopic rods 5 facilitate driving the bottom plate 18 to move. The first lead screw 9 facilitates driving the sliding plate 7 to move. The first motor 8 facilitates driving the first lead screw 9 to rotate. Turn the handle at one end of the first lead screw 9 to make the sliding plate 7 drive the first motor 8 to move. The square block 17 facilitates clamping one end of the output shaft of the first motor 8 far from the output end in the square groove 16. The two outer shells 12 facilitate fixing the two hydraulic rods 11. Open the switches of the two hydraulic rods 11 to make the two hydraulic rods 11 extend to drive the bottom plate 18 to move through the two telescopic rods 5, thereby driving the first motor 8 to insert the square block 17 into the square groove 16. The two rollers 4 facilitate passing the geomembrane through the gap between the two rollers 4, so that the geomembrane will not flip during winding. Pass the geomembrane through the gap between the two rollers 4 and then fix it on the upper winding roller 1.

[0028] Refer to Figure 2 、 Figure 3, the four fixing devices 15 each include two first springs 1501, pressing blocks 1502, square cases 1503, two second springs 1504, fixing rods 1505, bottom cases 1506, two clamping blocks 1507, two moving blocks 1508, two third springs 1509, two positioning blocks 1510 and two fourth springs 1511. The two moving devices 13 each include a second lead screw 1301, a second motor 1302, a first moving rod 1303, a toothed pulley 1304, a toothed belt 1305, a toothed pulley 1306, two bases 1307, a second moving rod 1308 and a third lead screw 1309. The second motor 1302 is fixedly embedded in the middle position at the front end of the upper end of the frame 3. The second lead screw 1301 is fixedly arranged at the position away from the output end of the output shaft of the second motor 1302. The first moving rod 1303 is threadedly sleeved on the outer side of the rod body of the second lead screw 1301 at the upper end. The toothed pulley 1304 is fixedly arranged through the outer side of the rod body of the second lead screw 1301 at the lower end. The third lead screw 1309 is rotatably arranged at the position on the inner top surface of the frame 3 at the front side. The second moving rod 1308 is threadedly sleeved on the outer side of the rod body of the third lead screw 1309 at the lower end. The toothed pulley 1306 is fixedly arranged through the outer side of the rod body of the third lead screw 1309 at the lower end. The toothed belt 1305 is movably sleeved on the peripheries of the toothed pulley 1304 and the toothed pulley 1306, and the toothed belt 1305 meshes with the toothed pulley 1304 and the toothed pulley 1306. The two bases 1307 are respectively fixedly arranged at the opposite ends of the first moving rod 1303 and the second moving rod 1308. The two second springs 1504 are respectively fixedly arranged at the position on one side of the upper end of the fixing seat 14. The square case 1503 is fixedly arranged at the upper ends of the two second springs 1504. The fixing rod 1505 is fixedly arranged at the middle position at the lower end of the square case 1503. The bottom case 1506 is fixedly arranged at the lower end of the fixing rod 1505. The pressing block 1502 movably penetrates through the upper end of the square case 1503. The two first springs 1501 are respectively fixedly arranged at the positions on both sides of the middle of the lower end of the pressing block 1502. The two positioning blocks 1510 are respectively fixedly arranged at the position on one side of the inner bottom surface of the base 1307. The two third springs 1509 are respectively fixedly arranged at the upper ends of the two positioning blocks 1510. The two moving blocks 1508 are respectively fixedly arranged at the upper ends of the two third springs 1509. The two fourth springs 1511 are respectively fixedly arranged at the positions on the upper ends of the opposite ends of the two moving blocks 1508. The two clamping blocks 1507 are respectively fixedly arranged at the ends of the two fourth springs 1511 away from the two moving blocks 1508;

[0029] Specifically, the second motor 1302 facilitates driving the second lead screw 1301 to rotate. The rotation of the second lead screw 1301 facilitates driving the first moving rod 1303 to move up and down and the first toothed pulley 1304 to rotate. The rotation of the first toothed pulley 1304 facilitates driving the toothed belt 1305 to rotate. The third lead screw 1309 facilitates driving the second moving rod 1308 to move up and down. The second toothed pulley 1306 facilitates driving the third lead screw 1309 to rotate. The toothed belt 1305 facilitates driving the second toothed pulley 1306 to rotate. The first moving rod 1303 and the second moving rod 1308 facilitate driving the two bases 1307 to move respectively. The two bases 1307 facilitate driving the two winding rollers 1 to move. Turning on the switch of the second motor 1302 causes it to drive the second lead screw 1301 to rotate, thereby causing the first moving rod 1303 to move up and down, and then driving one of the two bases 1307 to move up and down. At the same time, it drives the first toothed pulley 1304 to rotate, thereby driving the toothed belt 1305 to rotate, thereby driving the second toothed pulley 1306 to rotate, thereby driving the third lead screw 1309 to rotate, thereby causing the second moving rod 1308 to move up and down, and then driving the other of the two bases 1307 to move up and down. The two second springs 1504 facilitate driving the square shell 1503 to reset. The square shell 1503 facilitates driving the fixed rod 1505 to move. The fixed rod 1505 facilitates driving the bottom shell 1506 to move. The bottom shell 1506 facilitates the two clamping blocks 1507 to be stuck on the inner bottom surface of the bottom shell 1506. The pressing block 1502 facilitates squeezing the two clamping blocks 1507. The two first springs 1501 facilitate driving the pressing block 1502 to reset. The two positioning blocks 1510 facilitate fixing the two third springs 1509. The two third springs 1509 facilitate squeezing the two moving blocks 1508. The two moving blocks 1508 facilitate driving the two fourth springs 1511 to move. The two fourth springs 1511 facilitate squeezing the two clamping blocks 1507. The two clamping blocks 1507 facilitate fixing the bottom shell 1506. Pressing down the pressing block 1502 causes it to drive the fixed rod 1505 to move downward, and then drives the bottom shell 1506 to move downward to squeeze the two clamping blocks 1507 until the two clamping blocks 1507 are stuck on the inner bottom surface of the bottom shell 1506 to complete the fixation. Pressing down the square shell 1503 causes the lower end of the square shell 1503 to squeeze the two clamping blocks 1507 until the two clamping blocks 1507 are pulled out of the bottom shell 1506 by the resilience of the two third springs 1509, and then the fixing seat 14 can be removed from the base 1307.

[0030] Working principle: Pass the geomembrane through the gap between the two rollers 4 and then fix it on the upper winding roller 1. Turn on the switches of the two hydraulic rods 11 to make the two hydraulic rods 11 extend to drive the bottom plate 18 to move through the two telescopic rods 5. Then turn the handle at one end of the first lead screw 9 to make the sliding plate 7 drive the first motor 8 to move until the square block 17 aligns with the square groove 16. Then make the two hydraulic rods 11 shorten to drive the first motor 8 to insert the square block 17 into the square groove 16. Turn on the switch of the first motor 8 to drive the winding roller 1 to rotate, and then the winding of the geomembrane can start.

[0031] Secondly, when the upper winding roller 1 is fully wrapped with the geomembrane, turn on the switches of the two hydraulic rods 11, so that the two hydraulic rods 11 extend to drive the first motor 8 to move, causing the square block 17 to move out of the square groove 16. Then, press down the square shell 1503 so that the lower end of the square shell 1503 squeezes the two clamping blocks 1507 until the two clamping blocks 1507 are pulled out of the bottom shell 1506 by the resilience of the two third springs 1509, and then the fixing seat 14 can be removed from the base 1307. Then, turn on the switch of the second motor 1302 to drive the second lead screw 1301 to rotate, thereby causing the first moving rod 1303 to move downward, and then driving one of the two bases 1307 to move downward. At the same time, the first toothed belt pulley 1304 is driven to rotate, thereby driving the toothed belt 1305 to rotate, and then driving the second toothed belt pulley 1306 to rotate, and then driving the third lead screw 1309 to rotate, thereby causing the second moving rod 1308 to move upward, and then driving the other of the two bases 1307 to move upward. Then, turn the handle at one end of the first lead screw 9 to drive the slide plate 7 to move the first motor 8 until the square block 17 is aligned with the square groove 16, and the above steps can be repeated to complete the winding of the geomembrane again.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A winding device facilitating the replacement of winding rollers, comprising two winding roller cylinders (1) and a rack (3), characterized in that: On both the front and rear ends of the two coiling rollers (1) near the middle position, there are rotating cylinders (6) fixedly arranged. Around the four rotating cylinders (6), there are positioning plates (2) rotatably arranged. At the lower ends of the four rotating cylinders (6), there are fixed seats (14) fixedly arranged. At the upper ends of the four fixed seats (14), there are fixing devices (15) movably embedded. The four fixing devices (15) each include two first springs (1501), pressing blocks (1502), square shells (1503), two second springs (1504), fixing rods (1505), bottom shells (1506), two clamping blocks (1507), two moving blocks (1508), two third springs (1509), two positioning blocks (1510), and two fourth springs (1511). At both the front and rear ends of the upper end of the frame (3) near the middle position, there are moving devices (13) fixedly embedded. The two moving devices (13) each include a second lead screw (1301), a second motor (1302), a first moving rod (1303), a toothed pulley one (1304), a toothed belt (1305), a toothed pulley two (1306), two bases (1307), a second moving rod (1308), and a third lead screw (1309).

2. The winding device facilitating the replacement of a winding roller according to claim 1, wherein: On one side of the upper end of the front end of the frame (3), there are two fixing plates (10) fixedly arranged. At the ends of the two fixing plates (10) away from the frame (3), there are telescopic rods (5) fixedly arranged. At the ends of the two telescopic rods (5) away from the two fixing plates (10), there is a bottom plate (18) fixedly arranged.

3. The rewinding device for facilitating the replacement of the rewinding roller according to claim 2, characterized in that: On one side of the front end of the bottom plate (18), there is a first lead screw (9) movably embedded. A slide plate (7) is threadedly sleeved on the outer side of the rod body of the first lead screw (9). At the upper end of the slide plate (7), there is a first motor (8) fixedly arranged. At the end of the output shaft of the first motor (8) away from the output end, there is a square block (17) fixedly arranged.

4. A winding device facilitating the replacement of a winding roller according to claim 1, characterized in that: On the ends of the two front rotating cylinders (6) among the four rotating cylinders (6) away from the positioning plates (2), there are square grooves (16) opened. On one side of the upper end of the front end of the frame (3), there are two outer shells (12) fixedly arranged. On the inner walls of both sides of the two outer shells (12) near the middle position, there are hydraulic rods (11) fixedly arranged. On the inner walls of the front and rear ends of the frame (3) near the lower position of the other side, there are two rollers (4) rotatably arranged.

5. A winding device facilitating the replacement of a winding roller according to claim 1, characterized in that: The second motor (1302) is fixedly embedded at the middle position of the upper end of the front end of the frame (3). The second lead screw (1301) is fixedly arranged at the position of the output shaft of the second motor (1302) away from the output end. The first moving rod (1303) is threadedly sleeved on the outer side of the rod body of the second lead screw (1301) near the upper end position. The toothed pulley one (1304) is fixedly penetrated through the outer side of the rod body of the second lead screw (1301) near the lower end position. The third lead screw (1309) is rotatably arranged at the position of the inner top surface of the front side of the frame (3).

6. The rewinding device facilitating the replacement of a rewinding roller according to claim 1, characterized in that: The second moving rod (1308) is threadedly sleeved on the outer side of the lower end of the third lead screw (1309). The second toothed pulley (1306) is fixedly and penetratingly arranged on the outer side of the lower end of the third lead screw (1309). The toothed belt (1305) is movably sleeved on the peripheries of the first toothed pulley (1304) and the second toothed pulley (1306), and the toothed belt (1305) meshes with the first toothed pulley (1304) and the second toothed pulley (1306). The two bases (1307) are respectively fixedly arranged at the opposite ends of the first moving rod (1303) and the second moving rod (1308).

7. A winding device facilitating the replacement of a winding roller according to claim 1, characterized in that: The two second springs (1504) are respectively fixedly arranged at one side of the upper end of the fixed seat (14). The square shell (1503) is fixedly arranged at the upper ends of the two second springs (1504). The fixed rod (1505) is fixedly arranged at the middle position of the lower end of the square shell (1503). The bottom shell (1506) is fixedly arranged at the lower end of the fixed rod (1505). The pressing block (1502) movably penetrates through the upper end of the square shell (1503). The two first springs (1501) are respectively fixedly arranged at both sides of the middle position of the lower end of the pressing block (1502).

8. A winding device facilitating the replacement of a winding roller according to claim 1, wherein: The two positioning blocks (1510) are respectively fixedly arranged at one side of the inner bottom surface of the base (1307). The two third springs (1509) are respectively fixedly arranged at the upper ends of the two positioning blocks (1510). The two moving blocks (1508) are respectively fixedly arranged at the upper ends of the two third springs (1509). The two fourth springs (1511) are respectively fixedly arranged at the upper positions of the opposite ends of the two moving blocks (1508). The two clamping blocks (1507) are respectively fixedly arranged at the ends of the two fourth springs (1511) far away from the two moving blocks (1508).

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