Novel electrically-driven plate coiling machine

Abstract

The utility model discloses a novel electrically-driven plate coiling machine, which relates to the technical field of coiling machines and comprises a left wall plate and a right wall plate which are symmetrically arranged side by side, and an upper roll shaft, a lower roll shaft and a rear roll shaft which are sequentially arranged from top to bottom are arranged between the left wall plate and the right wall plate. The end parts of the upper roll shaft, the lower roll shaft and the rear roll shaft are matched through gears to realize synchronous rotation, the rear axle lifting mechanism is characterized in that rear axle supporting sleeves are rotationally mounted at two ends of the rear roll shaft through bearings, rear axle lifting grooves are formed in positions, corresponding to the rear axle supporting sleeves, of the left wall plate or the right wall plate, and the rear axle supporting sleeves are assembled in the rear axle lifting grooves in a sliding manner; a small motor is installed on the right wall plate and is in transmission connection with a first lifting mechanism, and the first lifting mechanism is used for driving the rear shaft supporting sleeve to do lifting motion in the rear shaft lifting groove. The small motor is adopted as a power source, and the device has the advantages of small occupied space, low working noise, convenience in operation, high applicability and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to a winding drum machine technical field, concretely relates to a novel electric drive plate winding drum machine. BACKGROUND

[0002] The winding drum machine is mainly used for yield processing of plate materials, and finally processes the plate into a drum structure through the lifting cooperation of the roller shafts.

[0003] In the traditional winding drum machine, most of the equipment adopts a manual adjustment mode, so that the lifting work of the three roller shafts depends on manual operation. This manual adjustment mode is not only time-consuming and laborious, but also has low precision, and often cannot quickly and accurately complete the lifting adjustment of the working roller shafts, which affects the processing efficiency and product precision. In addition, some winding drum machines use hydraulic pressure as a power source to drive the lifting of the lower roller shaft and the rear roller shaft through a hydraulic cylinder. The hydraulic system has the advantage of high yield power, but due to its large size, it occupies a large space, and the hydraulic system often produces a large noise when working, which increases the noise pollution of the operating environment and also brings certain difficulties to the maintenance of the equipment. Based on this, we propose a novel electric drive plate winding drum machine. SUMMARY

[0004] In order to solve the technical problems existing in the prior art, the utility model provides a novel electric drive plate winding drum machine.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a novel electric drive plate winding drum machine, which comprises left and right wall plates arranged symmetrically side by side, and upper, lower and rear roller shafts arranged in sequence between the left and right wall plates. The end portions of the upper, lower and rear roller shafts are synchronously rotated through gear cooperation, characterized in that: the two ends of the rear roller shaft are rotatably installed with a rear shaft support sleeve through bearings, and the positions corresponding to the rear shaft support sleeves on the left wall plate or the right wall plate are provided with rear shaft lifting grooves, and the rear shaft support sleeve is slidingly assembled in the rear shaft lifting groove.

[0006] Preferably, the first lifting mechanism comprises a lead screw, the upper end of the lead screw is movably inserted into the rear shaft support sleeve and threadedly cooperates with the rear shaft support sleeve, the lower end of the lead screw is installed with a worm gear, the lower end of the worm gear is movably installed on the lower wall of the rear shaft lifting groove through a bearing sleeve and a screw, the worm gear is meshingly connected with a worm, one end of the worm is fixedly connected with a worm shaft through a flat key, and the two worm shafts are fixedly connected with a connecting shaft; the small motor is fixedly installed on the right wall plate, and the motor shaft of the small motor is connected with the worm shaft located on the right side.

[0007] Preferably, the end of the upper roller shaft, the lower roller shaft and the rear roller shaft is respectively provided with an upper shaft end gear, a lower shaft end gear and a rear shaft end gear, the upper shaft end gear is connected with a intermediate gear in meshing connection, the intermediate gear is connected with a driving gear in meshing connection, the driving gear and the lower shaft end gear are connected in meshing connection, the lower shaft end gear is coaxially connected with a first connecting rod, the first connecting rod is hinged with a second connecting rod through an intermediate small shaft, the second connecting rod and the rear shaft end gear are coaxially connected, the outer circumferential surface of the intermediate small shaft is fixedly sleeved with an intermediate gear, and the intermediate gear is connected with the lower shaft end gear and the rear shaft end gear in meshing connection; the driving gear and the intermediate gear are movably installed on the left wall plate.

[0008] Preferably, the support is internally provided with a driving reduction motor, the motor shaft of the driving reduction motor is fixedly sleeved with a small chain wheel, and the driving gear and the small chain wheel are sleeved with a chain.

[0009] Preferably, a T-shaped clutch is installed between the connecting shaft and the worm shaft.

[0010] Preferably, the rear shaft support sleeve is movably connected with the end of the rear roller shaft through a first joint bearing.

[0011] Preferably, a rotating hole is formed in the left wall plate corresponding to the end position of the upper roller shaft, the left side end of the upper roller shaft is rotatably installed in the rotating hole in the vertical direction, the right side end of the right wall plate is provided with an upper shaft locking sleeve, and a clamping groove is formed in the right wall plate corresponding to the position of the upper shaft locking sleeve.

[0012] Preferably, the left side of the upper roller shaft is movably sleeved with an upper shaft support sleeve through a bearing, and the upper and lower end faces of the upper shaft support sleeve are both provided with rotating shafts, and the rotating shafts are rotatably installed in the rotating hole through a thrust ball bearing.

[0013] Preferably, the left end of the upper roller shaft is sleeved with a rotating sleeve, a pressing plate is arranged above the rotating sleeve, the pressing plate is in close contact with the rotating sleeve, and the pressing plate is fixedly installed on the left wall plate; two pull rods arranged in the vertical direction are installed at the lower end of the pressing plate, and the lower ends of the pull rods are fixedly connected with the support.

[0014] Compared with the prior art, the novel electric drive plate winding machine has the following beneficial effects:

[0015] (1) In the utility model, a small motor is used as power, and cooperation with the first lifting mechanism realizes the lifting movement of the rear roller shaft in the rear shaft lifting groove, compared with the hydraulic system, the motor drive system is small in size, low in noise, can effectively save space and improve the working environment, in addition, the motor has low maintenance cost and fast response speed, can quickly adjust the roller shaft position, ensures the flexibility and high efficiency of the processing process. At the same time, the motor drive system can effectively reduce energy waste, improve energy utilization efficiency, and has no hydraulic oil leakage risk, and is more environmentally friendly.

[0016] (2) The connection between the connecting shaft and the worm shaft is completed by setting the T-shaped clutch, so that the rear roller shaft can be lifted on one side, the cone cylinder processing can be easily carried out, and the applicability and flexibility of the equipment are increased.

[0017] (3) The problem that the right side of the upper roller shaft is in a suspended state during the material taking operation is solved by setting the square sleeve mechanism and the double pull rod mechanism, and the use safety is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application, in the drawings:

[0019] Figure 1 It is a structure schematic view of the first angle of the entire novel electric drive plate material winding drum machine in the embodiment;

[0020] Figure 2 It is a structure schematic view of the second angle of the entire novel electric drive plate material winding drum machine in the embodiment;

[0021] Figure 3 It is a structure schematic view in the embodiment;

[0022] Figure 4 It is an assembly schematic view in the embodiment;

[0023] Figure 5 It is an explosion view of the entire novel electric drive plate material winding drum machine in the embodiment;

[0024] Figure 6 It is Figure 5 a local enlarged structure schematic view;

[0025] Figure 7 It is a structure schematic view of the entire novel electric drive plate material winding drum machine in the embodiment in the unloading state.

[0026] In the drawing: 1, upper roller shaft; 2, lower roller shaft; 3, rear roller shaft; 4, left wallboard; 5, right wallboard; 6, driving reduction motor; 7, support; 8, electric control box; 9, small motor; 10, upper shaft locking sleeve;

[0027] 11, square sleeve mechanism; 111, sleeve pressing bolt; 112, round nut; 113, sleeve pressing nut; 114, thrust ball bearing; 115, upper shaft support sleeve; 116, rotating shaft; 117, rotating sleeve; 118, upper shaft end gear;

[0028] 12, rear shaft support sleeve; 13, lower shaft support sleeve; 14, roller bearing; 15, first joint bearing; 16, lead screw; 17, worm gear; 18, worm; 19, T-shaped clutch; 20, connecting shaft;

[0029] 21. Double pull rod mechanism; 211. Pull rod; 212. Pressing plate; 213. Reinforcing plate; 214. Supporting plate;

[0030] 22. Small chain wheel; 23. Driving gear;

[0031] 25. Connecting plate intermediate wheel mechanism; 251. Lower shaft end gear; 252. Deep groove ball bearing; 253. First connecting rod; 254. Second connecting rod; 255. Second joint bearing; 256. Rear shaft end gear; 257. Intermediate gear; 258. Intermediate small shaft;

[0032] 26. Protective cover; 27. Controller; 28. Hand wheel; 29. Worm shaft; 30. Star-shaped handle; 31. Intermediate gear. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0034] The embodiment provides a novel electric driving plate winding drum machine, as shown in the drawings, comprising left wall plate 4 and right wall plate 5 arranged symmetrically side by side, left wall plate 4 and right wall plate 5 are fixed through support 7, and upper roller shaft 1, lower roller shaft 2 and rear roller shaft 3 arranged in upper, lower and rear order are arranged between left wall plate 4 and right wall plate 5, and the ends of upper roller shaft 1, lower roller shaft 2 and rear roller shaft 3 are synchronously rotated through gear cooperation. Figures 1 to 7 In actual operation, the yield of the plate mainly relies on the lifting of the rear roller shaft 3, which is closely attached to the processed plate, and the processed plate steadily advances and is conveyed between the upper roller shaft 1 and the lower roller shaft 2, and the plate is bent by the included angle between the rear roller shaft 3 and the lower roller shaft 2, and then the plate is bent to a certain radian, and after yielding again, the plate will wrap the upper roller shaft 1 and gradually become a circle.

[0035] When processing thin plates, the required yield force is small, and it is relatively easy, but when processing thick plates and the plate is relatively long, it is very laborious, and most of the existing ordinary specification winding machines are manually adjusted to raise and lower the rear roller shaft 3, and the production efficiency is low; another winding machine uses hydraulic power as the power mode, and the rear roller shaft 3 is driven to rise or fall by the hydraulic cylinder, and the hydraulic cylinder has the advantage of large yield power, but the general shape is large, occupies a large space, and the noise is large during use, therefore, we use a small motor 9 as a driving force to drive the lifting action of the rear roller shaft 3, specifically, the two ends of the rear roller shaft 3 are rotatably installed with rear shaft support sleeves 12 through bearings, the left wall plate 4 or the right wall plate 5 is provided with a rear shaft lifting groove corresponding to the position of the rear shaft support sleeve 12, and the rear shaft support sleeve 12 is slidingly assembled in the rear shaft lifting groove, and further comprises a first lifting mechanism in transmission connection with the small motor 9, the first lifting mechanism is used to drive the rear shaft support sleeve 12 to lift in the rear shaft lifting groove; in the embodiment, the small motor 9 is installed on the right wall plate 5.

[0036] On the basis of the above scheme, the first lifting mechanism comprises a lead screw 16, the upper end of the lead screw 16 is movably inserted in the rear shaft support sleeve 12 and threadedly cooperates with the rear shaft support sleeve 12, the lower end of the lead screw 16 is provided with a worm gear 17, the lower end of the worm gear 17 is movably installed on the lower wall of the rear shaft lifting groove through a bearing sleeve and a screw, the worm gear 17 is meshingly connected with a worm 18, one end of the worm 18 is fixedly connected with a worm shaft 29 through a flat key, and the two worm shafts 29 are fixedly connected with a connecting shaft 20; the small motor 9 is fixedly installed on the right wall plate 5, and the motor shaft of the small motor 9 is connected with the worm shaft 29 located on the right side. Start the small motor 9, the rotating power of the motor shaft of the small motor 9 is transmitted to the two lead screws 16, and the synchronous rotation of the two lead screws 16 makes the two rear shaft support sleeves 12 synchronously lift in the rear shaft lifting groove.

[0037] The gap between the upper roller shaft 1 and the lower roller shaft 2 also needs to be adjusted according to the thickness of the plate, to ensure that the plate to be processed is placed and adheres between the upper and lower roller shafts, therefore, we rotatably install a lower shaft support sleeve 13 on both ends of the lower roller shaft 2 through bearings, the left wall plate 4 or the right wall plate 5 is provided with a lower shaft lifting groove corresponding to the position of the lower shaft support sleeve 13, and the lower shaft support sleeve 13 is slidingly assembled in the lower shaft lifting groove, and the lifting movement of the lower shaft support sleeve 13 in the lower shaft lifting groove is driven by a second lifting mechanism, and the principle of the second lifting mechanism is the same as that of the first lifting mechanism, in the embodiment, the second lifting mechanism is manually driven by a hand wheel 28, that is, the hand wheel 28 is in transmission connection with the second lifting mechanism, after rotating the hand wheel 28, the second lifting mechanism converts the rotating action of the hand wheel 28 into the linear motion of the lower shaft support sleeve 13 in the lower shaft lifting groove, thereby realizing the adjustment of the gap between the lower roller shaft 2 and the upper roller shaft 1.

[0038] In the plate winding process, the upper roller shaft 1 and the lower roller shaft 2 need to rotate synchronously relative to each other to transport the plate towards the rear roller shaft 3, and the rear roller shaft 3 needs to rotate synchronously with the lower roller shaft 2 to avoid scratching the plate workpiece during processing due to different rotating speeds. In the embodiment, the synchronous rotation of the three roller shafts is realized through the connecting plate intermediate gear mechanism 25. Specifically, the connecting plate intermediate gear mechanism 25 includes an upper shaft end gear 118, a lower shaft end gear 251, and a rear shaft end gear 256. The upper shaft end gear 118 is fixedly installed on the end of the upper roller shaft 1, the lower shaft end gear 251 is fixedly installed on the end of the lower roller shaft 2, and the rear shaft end gear 256 is fixedly installed on the end of the rear roller shaft 3. The upper shaft end gear 118 is meshingly connected with an intermediate gear 31, the intermediate gear 31 is meshingly connected with a drive gear, the drive gear is meshingly connected with the lower shaft end gear 251, the lower shaft end gear 251 is coaxially rotatably connected with a first connecting rod 253, the first connecting rod 253 is hingedly connected with a second connecting rod 254 through an intermediate small shaft 258, the second connecting rod 254 is coaxially rotatably connected with the rear shaft end gear 256, the outer circumferential surface of the intermediate small shaft 258 is fixedly sleeved with an intermediate gear 257, and the intermediate gear 257 is meshingly connected with the lower shaft end gear 251 and the rear shaft end gear 256. The drive gear 23 and the intermediate gear 31 are movably installed on the left wall plate 4. When the drive gear 23 rotates forward, the drive gear 23 drives the upper shaft end gear 118 to rotate forward through the intermediate gear 31, and at the same time, the drive gear 23 drives the lower shaft end gear 251 to rotate reversely, and the lower shaft end gear 251 drives the rear shaft end gear 256 to rotate forward through the intermediate gear 257. Through the transmission ratio adjustment between the gears, the upper shaft end gear 118 and the lower shaft end gear 251 are realized to rotate synchronously relative to each other, and the lower shaft end gear 251 and the rear shaft end gear 256 are realized to rotate synchronously in the same direction. In the embodiment, a protective cover 26 is installed on the outer side of the left wall plate 4 to protect the gears and other transmission components. The first connecting rod 253, the second connecting rod 254, and the intermediate small shaft 258 are connected through a deep groove ball bearing 252 and a second joint bearing 255 to ensure stable rotation.

[0039] It should be noted that the diameter and the number of teeth of the drive gear 23 are greater than the diameter and the number of teeth of the lower shaft end gear 251, respectively, to ensure that the lower shaft end gear 251 and the drive gear 23 remain in meshing state when the lower roller shaft 2 moves up and down in the lower shaft lifting groove.

[0040] On the basis of the above scheme, we drive the driving gear 23 to rotate by the active speed reducer motor 6, specifically, the bracket 7 is provided with the active speed reducer motor 6, the motor shaft of the active speed reducer motor 6 is provided with a small sprocket 22, the driving gear 23 is a chain wheel, and the chain is sleeved between the driving gear 23 and the small sprocket 22; the active speed reducer motor 6 is powered by the electric control box 8, the electric control box 8 is installed on the bracket 7, and the electric control box 8 and the controller 27 are electrically connected, and the start-stop state of the active speed reducer motor 6 can be controlled by the controller 27.

[0041] The new electric drive plate material winding machine can also wind a conical cylinder, that is, the rear roller shaft 3 is lifted on one side, specifically, the T-shaped clutch 19 is installed between the connecting shaft 20 and the worm shaft 29; the T-shaped clutch 19 is used between the connecting shaft 20 and the worm shaft 29, the previous flange connection structure is changed, the flange is bolted, and it takes more time to disassemble; the T-shaped clutch 19 is connected, the corresponding teeth of the two pieces are directly embedded and matched, there is a rubber pad in the middle, which also plays a damping role. When winding the taper, the T-shaped clutch 19 loosens the outside top wire and disconnects with the connecting shaft 20, and then the T-shaped clutch 19 slides along the internal flat key, and the two clutch teeth are disconnected and not connected. In this way, the rear roller shaft 3 is lifted on one side, according to the height difference, the taper requirement of the conical cylinder is reached.

[0042] In addition, when winding the conical cylinder, the rear roller shaft 3 needs to be adjusted in height on one side. If the rear roller shaft 3 is lifted on one side, the rear shaft support sleeve 12 at both ends of the rear roller shaft 3 will be high and low, the second connecting rod 254 and the end of the rear roller shaft 3 will produce an inclination angle, and the rear shaft support sleeve 12 will bear a torsional stress. When the stress exceeds the load, damage will occur. In the embodiment, the rear shaft support sleeve 12 is movably connected with the end of the rear roller shaft 3 through the first joint bearing 15, and the first joint bearing 15 increases the guide range of the rear roller shaft 3, so that deformation will not occur due to torsional stress.

[0043] After the winding plate ends, the finished parts need to be taken down. In this embodiment, a rotating hole is formed in the left wall plate 4 corresponding to the end position of the upper roller shaft 1, and the space size of the rotating hole meets the rotating space requirement of the square sleeve mechanism 11. The square sleeve mechanism 11 is arranged in the rotating hole. In the vertical direction, the left end of the upper roller shaft 1 is rotatably installed in the square sleeve mechanism 11. The right end of the right wall plate 5 is provided with an upper shaft locking sleeve 10. The right wall plate 5 is provided with a clamping groove corresponding to the position of the upper shaft locking sleeve 10. In this embodiment, a star-shaped handle 30 is installed above the clamping groove in the right wall plate 5. The lower end of the star-shaped handle 30 penetrates the right wall plate 5 and extends into the clamping groove. The star-shaped handle 30 is in threaded connection with the right wall plate 5. The outer circumferential surface of the upper shaft locking sleeve 10 is provided with a milled flat surface. When the upper shaft locking sleeve 10 is located in the clamping groove, rotating the star-shaped handle 30 makes the end of the star-shaped handle 30 contact with the milled flat surface, thereby locking the upper shaft locking sleeve 10 in the clamping groove. In order to facilitate the outward pulling of the upper roller shaft 1, a handle is installed on the upper shaft locking sleeve 10. The upper roller shaft 1 rotates as a fulcrum through the square sleeve mechanism 11 arranged on the left wall plate 4. Loosen the star-shaped handle 30, turn the upper shaft locking sleeve 10 through the handle, adjust the milled flat surface to be horizontal, and then pull the upper roller shaft 1 away from the clamping groove through the handle. In this way, the parts can be taken out. The roller bearing 14 is installed inside the upper shaft locking sleeve 10 to reduce friction and facilitate the resetting of the upper roller shaft 1.

[0044] When the parts are taken out, the right end of the upper roller shaft 1 is in a suspended state. Due to the action of gravity, the right end of the upper roller shaft 1 may sag, which may cause hidden dangers. In addition, it is laborious to reset the upper roller shaft 1 after the parts are taken out. In order to solve this problem, the square sleeve mechanism 11 is improved. The square sleeve mechanism 11 includes an upper shaft support sleeve 115. The upper shaft support sleeve 115 is movably sleeved on the left side of the upper roller shaft 1 through a bearing. The upper and lower end surfaces of the upper shaft support sleeve 115 are both provided with a rotating shaft 116. The rotating shaft 116 is rotatably installed in the rotating hole through a thrust ball bearing 114. In this way, the rotation of the upper roller shaft 1 as a fulcrum can be smooth, and the stress area is increased to prevent damage. In this embodiment, the thrust ball bearing 114 is locked and pressed by the pressing sleeve bolt 111, the round nut 112, and the pressing sleeve nut 113.

[0045] In order to further solve the sagging problem of the right end of the upper roller shaft 1, a double pull rod mechanism 21 is added to the left end of the upper roller shaft 1. The lever principle is used to solve the sagging problem of the right end of the upper roller shaft 1. Specifically, the left end of the upper roller shaft 1 is sleeved with a rotating sleeve 117. A pressing plate 212 is arranged above the rotating sleeve 117. The pressing plate 212 is in close contact with the rotating sleeve 117. The pressing plate 212 is fixedly installed on the left wall plate 4 through a 214 support plate. In this embodiment, two pull rods 211 are installed on the lower end of the pressing plate 212 and arranged in the vertical direction. The lower end of the pull rod 211 is fixedly connected with the support 7. A reinforcing plate 213 is fixedly installed between the two pull rods 211 to improve the stability of the pull rod 211.

[0046] In the description of the utility model, the term "first", "second", "another", "yet another" are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the embodiments of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0047] In the description of the utility model, it is necessary to point out that, unless otherwise expressly provided and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. In addition, in the description of the utility model, unless otherwise stated, the meaning of "multiple" is two or more than two.

[0048] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A novel electrically driven panel winding machine, comprising left and right wall panels (4) and (5) arranged symmetrically side by side, an upper roller shaft (1), a lower roller shaft (2) and a rear roller shaft (3) arranged in an upper, lower and rear order between the left and right wall panels (4) and (5), the ends of the upper, lower and rear roller shafts (1), (2) and (3) being synchronously rotated by gear cooperation, characterized in that: Both ends of the rear roller shaft (3) are rotatably installed with rear shaft support sleeves (12) through bearings, the left wall plate (4) or the right wall plate (5) is provided with a rear shaft lifting groove corresponding to the position of the rear shaft support sleeve (12), and the rear shaft support sleeve (12) is slidingly assembled in the rear shaft lifting groove; the right wall plate (5) is provided with a small motor (9), the small motor (9) is drivingly connected with a first lifting mechanism, and the first lifting mechanism is used to drive the rear shaft support sleeve (12) to move up and down in the rear shaft lifting groove.

2. A novel electrically driven sheet web roll machine according to claim 1, characterized in that The first lifting mechanism comprises a lead screw (16), the upper end of the lead screw (16) is movably inserted into the rear shaft support sleeve (12) and is in threaded connection with the rear shaft support sleeve (12), the lower end of the lead screw (16) is provided with a worm gear (17), the lower end of the worm gear (17) is movably installed on the lower wall of the rear shaft lifting groove through a bearing sleeve and a screw, the worm gear (17) is in meshing connection with a worm shaft (18), one end of the worm shaft (18) is fixedly connected with a worm shaft (29) through a flat key, and the two worm shafts (29) are fixedly connected with a connecting shaft (20) in common.

3. A novel electrically driven sheet web roll machine according to claim 1 or 2, characterized in that: The end portions of the upper roller shaft (1), the lower roller shaft (2) and the rear roller shaft (3) are respectively provided with an upper shaft end gear (118), a lower shaft end gear (251) and a rear shaft end gear (256), the upper shaft end gear (118) is in meshing connection with an intermediate gear (31), the intermediate gear (31) is in meshing connection with a driving gear (23), the driving gear (23) and the lower shaft end gear (251) are in meshing connection, the lower shaft end gear (251) is coaxially and rotatably connected with a first connecting rod (253), the first connecting rod (253) is hingedly connected with a second connecting rod (254) through an intermediate small shaft (258), the second connecting rod (254) and the rear shaft end gear (256) are coaxially and rotatably connected, the outer circumferential surface of the intermediate small shaft (258) is fixedly sleeved with an intermediate gear (257), and the intermediate gear (257) is in meshing connection with the lower shaft end gear (251) and the rear shaft end gear (256); the driving gear (23) and the intermediate gear (31) are movably installed on the left wall plate (4).

4. A novel electrically driven sheet web roll machine according to claim 3, characterized in that: The support (7) is provided with a driving reduction motor (6), the motor shaft of the driving reduction motor (6) is fixedly sleeved with a small chain wheel (22), and the driving gear (23) and the small chain wheel (22) are sleeved with a chain.

5. A novel electrically driven sheet web roll machine according to claim 3, characterized in that: A T-shaped clutch (19) is installed between the connecting shaft (20) and the worm shaft (29).

6. A novel electrically driven sheet web roll machine according to claim 5, characterized in that The rear shaft support sleeve (12) is movably connected with the end portion of the rear roller shaft (3) through a first joint bearing (15).

7. A novel electrically driven sheet roll machine according to claim 1, characterized in that: The left wall plate (4) is provided with a rotating hole corresponding to the end portion of the upper roller shaft (1), in the vertical direction, the left end portion of the upper roller shaft (1) is rotatably installed in the rotating hole, the right end portion of the right wall plate (5) is provided with an upper shaft locking sleeve (10), and the right wall plate (5) is provided with a clamping groove corresponding to the position of the upper shaft locking sleeve (10).

8. A novel electrically driven sheet web roll machine according to claim 7, characterized in that The left side of the upper roller shaft (1) is movably sleeved with an upper shaft supporting sleeve (115) through a bearing, the upper and lower end faces of the upper shaft supporting sleeve (115) are both installed with a rotating shaft (116), and the rotating shaft (116) is rotatably installed in a rotating hole through a thrust ball bearing (114).

9. A novel electrically driven sheet web roll machine according to claim 8, characterized in that: The left end of the upper roller shaft (1) is sleeved with a rotating sleeve (117), the upper side of the rotating sleeve (117) is provided with a pressing plate (212), the pressing plate (212) is in close contact with the rotating sleeve (117), and the pressing plate (212) is fixedly installed on the left wall plate (4); the lower end of the pressing plate (212) is installed with two pull rods (211) arranged in the vertical direction, and the lower ends of the pull rods (211) are fixedly connected with the support (7).

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