Roll changing device and equipment

Abstract

The utility model discloses a roll changing device and equipment, and relates to the technical field of battery production, and the roll changing device comprises a roll changing assembly, a following assembly and a cutting assembly; the following assembly is installed on the roll changing assembly and comprises a following body, a tracking roller and a tracking driving assembly. The tracking roller is rotationally mounted on the following main body; the tracking driving assembly is connected with the tracking roller and used for driving the tracking roller to move in the horizontal linear direction. The cut-off assembly is installed on the following body and used for cutting off a strip located between the tracking roller and a material roll on the winding shaft. The roll changing assembly is used for driving the following assembly and the cutting assembly to move in the vertical direction. By means of the design, the technical defects existing in an existing turret type roll changing mechanism are overcome, and the purposes of being small in occupied space, safe, reliable and convenient to maintain in the later period are achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of battery production, in particular to a longitudinal roll changing device and equipment applied to sodium and lithium battery production. BACKGROUND

[0002] In the battery production process, automatic roll changing plays a crucial role, and it runs through multiple production links, and has an undeniable influence on improving production efficiency, ensuring product quality, reducing production cost and improving production safety.

[0003] At present, the automatic roll changing mechanism of the battery pole piece mostly adopts a wide turret structure. Although the turret roll changing structure can meet the action requirements of automatic roll changing, the roll material needs to be turned around the middle shaft during roll changing, the structure is relatively large, and the space is relatively large. At the same time, in order to make the roll material turn smoothly, the space on the movement path of the roll material needs to be fully exposed, which leads to more exposed movement parts of the mechanism, and the structural safety is poor. In addition, in order to ensure the strength of the structure, the turret roll changing structure is mostly designed to be relatively bulky, which also increases the difficulty of the maintenance of the structure in the later period, especially in the absence of hoisting equipment. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the purpose of the application is to provide a roll changing device and equipment to solve the technical problems of the turret roll changing mechanism, such as large space occupation, poor safety and difficult maintenance in the later period.

[0005] To achieve the above technical purpose, the application provides a roll changing device, which comprises a roll changing assembly, a following assembly and a cutting assembly;

[0006] The following assembly is installed on the roll changing assembly and comprises a following main body, a tracking roller and a tracking drive assembly;

[0007] The tracking roller is rotatably installed on the following main body;

[0008] The tracking drive assembly is connected with the tracking roller and is used to drive the tracking roller to move in a horizontal straight line direction;

[0009] The cutting assembly is installed on the following main body and is used to cut the strip material between the tracking roller and the roll material on the winding shaft;

[0010] The roll changing assembly is used to drive the following assembly and the cutting assembly to move in a vertical direction.

[0011] Further, the following main body comprises two following installation plates;

[0012] The two following installation plates are arranged in parallel and are spaced apart.

[0013] The tracking roller is rotatably mounted between the two follower mounting plates;

[0014] The tracking drive assembly comprises a first tracking drive unit;

[0015] The first tracking drive unit comprises a first tracking driver and a first linear guide rail;

[0016] At least one of the follower mounting plates is slidably mounted on the roll changing assembly along the horizontal linear direction through the first linear guide rail;

[0017] The first tracking driver is connected with one of the follower mounting plates for driving the connected follower mounting plate to move along the horizontal linear direction.

[0018] Further, a rack parallel to the first linear guide rail is fixed on the follower mounting plate connected with the first tracking driver;

[0019] The first tracking driver is a rotary motor, and an output shaft of the rotary motor is connected with a gear engaged with the rack.

[0020] Further, the follower body further comprises a roller mounting frame;

[0021] The tracking drive assembly further comprises a second tracking drive unit;

[0022] The second tracking drive unit comprises a second linear guide rail and a second tracking driver;

[0023] The roller mounting frame is slidably mounted between the two follower mounting plates along the horizontal linear direction through the second linear guide rail;

[0024] The tracking roller is rotatably mounted on the roller mounting frame;

[0025] The second tracking driver is mounted on the follower mounting plate and connected with the roller mounting frame for driving the roller mounting frame to move along the horizontal linear direction.

[0026] Further, the follower assembly further comprises two follower over-rollers;

[0027] The two follower over-rollers are rotatably mounted on the follower body and located on a side of the tracking roller away from the winding shaft;

[0028] The two follower over-rollers are spaced apart in an up-down direction.

[0029] Further, the follower assembly further comprises a tape sensor mounted on the follower body for detecting the thickness of the material roll on the winding shaft.

[0030] Further, the cutting assembly comprises a cutting unit and a pressing unit.

[0031] The pressing unit is installed on the following body and above the tracking roller, and is used to press the tape on the tracking roller.

[0032] The cutting unit is installed on the following body and on the side of the tracking roller towards the winding shaft, and is used to cut the tape between the tracking roller and the roll on the winding shaft.

[0033] Further, the pressing unit comprises a pressing strip and a pressing driver.

[0034] The pressing driver is installed on the following body, and the driving end is connected with the pressing strip, and is used to drive the pressing strip to move close to or away from the tracking roller.

[0035] Further, the cutting unit comprises a cutting mounting plate, a cutting knife and a cutting driver.

[0036] The cutting mounting plate is fixed on the following body.

[0037] The cutting driver is installed at the bottom of the cutting mounting plate, and the driving end is upwardly movable through the cutting mounting plate and connected with the cutting knife, and is used to drive the cutting knife to move to cut the tape.

[0038] The cutting knife is fixed with a guide rod at the bottom.

[0039] The cutting mounting plate is fixed with a linear bearing through which the guide rod is movable.

[0040] Further, the roll changing assembly comprises a fixing frame, a third linear guide rail and a roll changing driver.

[0041] The third linear guide rail is vertically arranged.

[0042] The fixing frame is slidingly installed on the third linear guide rail.

[0043] The roll changing driver is connected with the fixing frame, and is used to drive the fixing frame to move in the vertical direction.

[0044] Further, the fixing frame is installed with a first ball screw.

[0045] The roll changing driver is a rotary motor, which is connected with the screw rod of the first ball screw, and is used to drive the fixing frame to move in the vertical direction by driving the screw rod to rotate.

[0046] The application further discloses a roll changing device, which comprises a device body, a traction device, a buffer device, a winding device and the roll changing device.

[0047] The traction device, the buffer device, the roll changing device and the winding device are sequentially mounted on the equipment body;

[0048] The traction device is used for traction of the strip and cutting off the tension;

[0049] The buffer device is used for compensating the length change of the strip when the roll changing device performs the roll changing operation;

[0050] The winding device comprises at least two winding assemblies;

[0051] The two winding assemblies are sequentially and spacedly distributed in the vertical direction.

[0052] Further, the traction device comprises a clamping roller, a traction roller, a clamping adjusting assembly and a traction driver;

[0053] The traction driver is connected with the traction roller and used for driving the traction roller to rotate;

[0054] The clamping roller is arranged in parallel with one side of the traction roller;

[0055] The clamping adjusting assembly is connected with the clamping roller and used for adjusting the swing amplitude of the clamping roller relative to the traction roller, so as to adjust the clamping degree of the strip between the clamping roller and the traction roller.

[0056] Further, the buffer device comprises a fixed over roller, a floating roller, a floating frame, a fourth linear guide rail and a floating driver;

[0057] The fourth linear guide rail is vertically arranged;

[0058] The floating frame is slidingly mounted on the fourth linear guide rail;

[0059] The floating roller is rotationally mounted on the floating frame;

[0060] The fixed over roller is arranged below the floating roller;

[0061] The floating driver is connected with the floating frame and used for driving the floating frame to move in the vertical direction.

[0062] Further, the floating frame is mounted with a second ball screw;

[0063] The floating driver is a rotary motor, which is connected with a screw rod of the second ball screw and used for driving the floating frame to move in the vertical direction by driving the screw rod to rotate.

[0064] Further, the winding assembly comprises a winding driver and a winding shaft;

[0065] The winding driver is connected with the winding shaft and used to drive the winding shaft to rotate.

[0066] From the above technical solution, it can be seen that the winding changing device designed in the application starts to change winding when the material roll on the winding shaft reaches the preset winding thickness, at this time the cutting assembly cuts the strip, and then the winding changing assembly drives the following assembly and the cutting assembly to move upward or downward to the new winding shaft position, and then the tracking drive assembly of the following assembly drives the tracking roller to move close to the new winding shaft direction to paste the strip on the new winding shaft to complete the winding changing work.

[0067] The scheme designed in the application has the following beneficial effects:

[0068] 1. The vertical and horizontal movement is used to realize the longitudinal winding changing work, compared with the turret type winding changing mechanism, the space occupation is less, and at the same time the space exposed on the movement path of the strip can be effectively reduced, so that the structure is more safe and reliable.

[0069] 2. The strip is directly pressed and pasted on the winding drum of the new (empty) winding roller to complete the strip splicing, the strip splicing success rate is high, which can reach more than 99%.

[0070] 3. The overall structure is compact and light, and the later maintenance is convenient.

[0071] 4. The winding changing device designed in the application is used to replace the turret type winding changing mechanism, the comprehensive performance is improved, at the same time, since the large amplitude turret structure is cancelled, the production line comprehensive cost can be reduced by 13% to 20%, the CPK is improved by more than 2.0, and the market competitiveness of the final production product is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0072] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0073] Figure 1 It is a structure schematic view of a winding changing device provided in the application;

[0074] Figure 2 It is a structure schematic view of a following assembly of a winding changing device provided in the application;

[0075] Figure 3 It is a structure schematic view of a cutting assembly of a winding changing device provided in the application;

[0076] Figure 4A structure diagram of a roll changing assembly of a roll changing device provided in the present application;

[0077] Figure 5 A perspective view of a roll changing device provided in the present application;

[0078] Figure 6 A sectional view of a roll changing device provided in the present application;

[0079] Figure 7 A structure diagram of a traction device of a roll changing device provided in the present application;

[0080] Figure 8 A structure diagram of a buffer device of a roll changing device provided in the present application;

[0081] Figure 9 A structure diagram of a winding assembly of a winding device of a roll changing device provided in the present application;

[0082] In the figure: 1, traction device; 11, traction driver; 12, traction reducer; 13, connecting mounting base; 14, pinch roller; 15, swing arm; 16, adjustment assembly; 17, swing driver; 18, traction roller; 2, buffer device; 21, floating driver; 22, fourth linear guide rail; 23, second ball screw; 24, floating side plate; 25, floating roller; 26, floating top plate; 27, fixed over roller; 28, floating frame; 3, roll changing assembly; 31, first ball screw; 32, roll changing driver; 33, roll changing reducer; 34, reducer mounting base; 35, first synchronous belt transmission assembly; 36, connecting plate; 37, third linear guide rail; 38, fixed plate; 39, fixed frame; 4, following assembly; 41, first tracking driver; 42, tracking reducer; 43, following mounting plate; 44, following over roller; 45, first linear guide rail; 46, strip sensor; 47, rack; 48, following main body; 49, tracking drive assembly; 410, roller mounting frame; 5, cutting assembly; 51, cutting strip mounting plate; 52, tracking roller; 53, second linear guide rail; 54, strip pressing driver; 55, second tracking driver; 56, strip pressing bar; 57, one-way bearing; 58, linear bearing; 59, cutting strip driver; 510, cutting strip knife; 511, guide rod piece; 6, winding device; 61, winding mounting base; 62, winding shaft; 63, spool mounting base; 64, second synchronous belt transmission assembly; 65, winding driver; 7, device main body. DETAILED DESCRIPTION

[0083] The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts are within the scope of the present application.

[0084] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0085] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be replaceably connected, or it can be 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, it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0086] The embodiments of the present application disclose a roll changing device and equipment.

[0087] Please refer to Figure 1 and Figure 3 An embodiment of a roll changing device provided in the embodiments of the present application includes:

[0088] The roll changing assembly 3, the following assembly 4, and the cutting assembly 5.

[0089] The following assembly 4 is mounted on the roll changing assembly 3, and includes a following body 48, a tracking roller 52, and a tracking drive assembly 49.

[0090] The tracking roller 52 is rotatably mounted on the following body 48; the tracking drive assembly 49 is connected with the tracking roller 52, and is used to drive the tracking roller 52 to move in a horizontal straight line direction; the cutting assembly 5 is mounted on the following body 48, and is used to cut the strip material between the tracking roller 52 and the roll on the winding shaft 62; the roll changing assembly 3 is used to drive the following assembly 4 and the cutting assembly 5 to move in a vertical direction.

[0091] The roll changing device designed in the application starts to change the roll when the material roll on the winding shaft 62 reaches the preset winding thickness, at which time the cutting assembly 5 cuts the strip, and then the roll changing assembly 3 drives the following assembly 4 and the cutting assembly 5 to move upward or downward to the position of the new winding shaft 62, and then the tracking drive assembly 49 of the following assembly 4 drives the tracking roller 52 to move in the direction close to the new winding shaft 62 to paste the strip on the new winding shaft 62, completing the roll changing work.

[0092] In order to avoid the strip on the tracking roller 52 from being separated from the tracking roller 52 due to the rotation of the tracking roller 52 in the opposite direction of the winding rotation during the roll changing process, as shown in Figure 3 , the tracking roller 52 can be limited to rotate only in the direction of the winding rotation through the one-way bearing 57.

[0093] The scheme designed in the application has the following beneficial effects:

[0094] 1. The vertical and horizontal movement is used to realize the longitudinal roll changing work, compared with the turret roll changing mechanism, the space occupation is less, and at the same time, the space exposed on the movement path of the strip can be effectively reduced, so that the structure is more safe and reliable.

[0095] 2. The strip is directly pressed and pasted on the winding drum of the new (empty) winding roller to complete the strip splicing, the success rate of strip splicing is high, which can reach more than 99%.

[0096] 3. The overall structure is compact and light, and the later maintenance is convenient.

[0097] 4. The roll changing device designed in the application is used to replace the turret roll changing mechanism, the comprehensive performance is improved, at the same time, due to the cancellation of the large amplitude turret structure, the overall cost of the production line can be reduced by 13% to 20%, the CPK is improved by more than 2.0, and the market competitiveness of the final production product is effectively improved.

[0098] The above is embodiment one of the roll changing device provided in the embodiments of the application, and the following is embodiment two of the roll changing device provided in the embodiments of the application, please refer to Figures 1 to 4 .

[0099] Based on the scheme of the above embodiment one:

[0100] Further, as shown in Figure 2 , the following main body 48 includes two following installation plates 43, the two following installation plates 43 are parallel and spaced apart, and the tracking roller 52 is rotatably installed between the two following installation plates 43.

[0101] The tracking drive assembly 49 includes a first tracking drive unit; the first tracking drive unit includes a first tracking driver 41 and a first linear guide rail 45.

[0102] At least one following mounting plate 43 is slidably mounted on the roll changing assembly 3 along a horizontal linear direction by a first linear guide rail 45 (preferably two following mounting plates 43 are slidably mounted on the roll changing assembly 3 by the first linear guide rail 45).

[0103] A first tracking driver 41 is connected with one following mounting plate 43, and used to drive the connected following mounting plate 43 to move along a horizontal linear direction.

[0104] Further, as shown in the drawings, Figure 2 the following mounting plate 43 connected with the first tracking driver 41 is fixed with a rack 47 parallel to the first linear guide rail 45; the first tracking driver 41 is a rotary motor (specifically a reversible servo motor), and the output shaft of the first tracking driver 41 is connected with a gear (not shown in the drawings) engaged with the rack 47.

[0105] Taking the rotary motor as an example, the output end of the first tracking driver 41 is connected with a tracking reducer 42 (a common motor reducer) for increasing torque. The first tracking driver 41 drives the gear to rotate, and then drives the following mounting plate 43 to move through the engagement transmission between the gear and the rack 47, and then drives the tracking roller 52 to move along a horizontal linear direction.

[0106] Further, as shown in the drawings, Figure 3 the following main body 48 further includes a roller mounting frame 410 (the roller mounting frame 410 can be composed of two parallel and spaced apart plate structures, which is not limited).

[0107] The tracking driving assembly 49 further includes a second tracking driving unit, and the second tracking driving unit includes a second linear guide rail 53 and a second tracking driver 55; the roller mounting frame 410 is slidably mounted between the two following mounting plates 43 along a horizontal linear direction by the second linear guide rail 53 (specifically, the two ends of the roller mounting frame 410 can be slidably connected with the inner sides of the two following mounting plates 43 by the second linear guide rail 53, so as to improve the reliability of the sliding connection).

[0108] The tracking roller 52 is rotatably mounted on the roller mounting frame 410; the second tracking driver 55 is mounted on the following mounting plate 43 and connected with the roller mounting frame 410, and used to drive the roller mounting frame 410 to move along a horizontal linear direction.

[0109] The second tracking driver 55 can be a telescopic cylinder, and the telescopic end of the second tracking driver 55 is connected with the roller mounting frame 410, so as to drive the roller mounting frame 410 to move along a horizontal linear direction; the second tracking driver 55 can be two, and mounted on the inner sides of the two following mounting plates 43, which is not limited.

[0110] The second level movement control of the tracking roller 52 is realized by adding a second tracking driving unit, which has a larger movement range and better adaptability, and enables the tracking roller 52 to better extend to follow the main body 48 to press the strip against the winding shaft 62.

[0111] Further, as shown in Figure 2 the following, the following assembly 4 further comprises two following over rollers 44; the two following over rollers 44 are rotatably installed on the following main body 48 (specifically, rotatably installed between the two following installation plates 43), and located on the side of the tracking roller 52 away from the winding shaft 62, the two following over rollers 44 are spaced apart in an up-down manner, and the strip passes through them to better guide the strip to the tracking roller 52.

[0112] Further, as shown in Figure 2 the following, the following assembly 4 further comprises a strip sensor 46 installed on the following main body 48 for detecting the thickness of the roll on the winding shaft 62 and feeding back to the control system. When the control system determines that the thickness of the roll on the winding shaft 62 reaches a preset value, it is considered that the winding of the winding shaft 62 is completed, and a roll changing instruction is sent to start the roll changing operation. By setting the sensor, automatic control of roll changing can be realized, and work efficiency is improved.

[0113] Further, the cutting assembly 5 comprises a strip cutting unit and a strip pressing unit.

[0114] The strip pressing unit is installed on the following main body 48 and located above the tracking roller 52 for pressing the strip against the tracking roller 52; the strip cutting unit is installed on the following main body 48 and located on the side of the tracking roller 52 towards the winding shaft 62 for cutting the strip between the tracking roller 52 and the roll on the winding shaft 62.

[0115] Further, as shown in Figure 3 the following, the strip pressing unit comprises a strip pressing strip 56 and a strip pressing driver 54.

[0116] The strip pressing driver 54 is installed on the following main body 48, and the driving end is connected with the strip pressing strip 56 for driving the strip pressing strip 56 to move close to or away from the tracking roller 52.

[0117] The strip pressing driver 54 can be two, respectively installed on the inner side of the two plate structures of the roller installation frame 410 through the driver installation seat. The strip pressing driver 54 can be a telescopic cylinder, the telescopic end of which passes through the driver installation seat downward and is connected with the strip pressing strip 56 to drive the strip pressing strip 56 to move close to or away from the tracking roller 52.

[0118] Further, as shown in Figure 3 the following, the strip cutting unit comprises a strip cutting installation plate 51, a strip cutting knife 510 and a strip cutting driver 59.

[0119] The cutting strip mounting plate 51 is fixed to the following body 48, and is specifically fixed between the two following mounting plates 43.

[0120] The cutting strip driver 59 is mounted at the bottom of the cutting strip mounting plate 51, and the driving end is movably arranged upwards through the cutting strip mounting plate 51 and connected to the cutting strip cutter 510, for driving the cutting strip cutter 510 to move to cut the strip. The cutting strip driver 59 can be a telescopic cylinder, and the number is two, which are uniformly spaced and fixed at the bottom of the cutting strip mounting plate 51, and then the telescopic end of each is movably arranged upwards through the cutting strip mounting plate 51 and connected to the cutting strip cutter 510.

[0121] The cutting strip cutter 510 is fixed at the bottom with a guide rod 511, and the cutting strip mounting plate 51 is fixed with a linear bearing 58 through which the guide rod 511 is movably arranged. The number of guide rods 511 can be two, and are spaced apart, and correspondingly, the number of linear bearings 58 is two, which are matched one by one with the guide rods 511. Through the cooperation of the guide rod 511 and the linear bearing 58, the movement stability of the cutting strip cutter 510 can be improved, and the cutting efficiency can be improved.

[0122] Further, as shown in Figure 4 The roll changing assembly 3 includes a fixed frame 39, a third linear guide rail 37, and a roll changing driver 32.

[0123] The third linear guide rail 37 is vertically arranged, the fixed frame 39 is slidingly installed on the third linear guide rail 37, and the roll changing driver 32 is connected with the fixed frame 39, for driving the fixed frame 39 to move in the vertical direction.

[0124] The third linear guide rail 37 can be designed as two groups, which are arranged on the two sides of the fixed frame 39, so as to provide more stable and reliable sliding connection effect of the fixed frame 39.

[0125] Further, the fixed frame 39 is installed with a first ball screw 31.

[0126] The roll changing driver 32 is a rotary motor, which is connected with the screw rod of the first ball screw 31, for driving the screw rod to rotate to drive the fixed frame 39 to move in the vertical direction.

[0127] The roll changing driver 32 is a reversible servo motor, and the output end is connected with a roll changing speed reducer 33 (a conventional motor speed reducer), for increasing the torque. The roll changing speed reducer 33 is connected with the top end of one of the third linear guide rails 37 through a speed reducer mounting seat 34, so as to be fixed. The speed reducer mounting seat 34 is also installed with a first synchronous belt transmission assembly 35, for connecting the output shaft of the roll changing speed reducer 33 with the screw rod, so that the output shaft of the roll changing speed reducer 33 can drive the screw rod to rotate. The first synchronous belt transmission assembly 35 is also connected with a synchronous belt tensioning mechanism, for adjusting the tensioning degree of the synchronous belt, so as to ensure that the first synchronous belt transmission assembly 35 can stably transmit power.

[0128] For the design of the fixed frame 39, two fixed plates 38 and a connecting plate 36 can be included; the two fixed plates 38 are parallel and spaced apart, and the connecting plate 36 connects the two fixed plates 38. Each fixed plate 38 is slidingly connected with a set of third linear guides 37, and the two follower mounting plates 43 are slidingly connected with the two fixed plates 38 through the first linear guides 45, that is, the follower body 48 is mounted between the two fixed plates 38.

[0129] As shown in Figure 5 and Figure 6 , the application also discloses a roll changing device, which comprises a device body 7, a traction device 1, a buffer device 2, a winding device 6, and a roll changing device.

[0130] The device body 7 can be composed of a bottom plate and two parallel and spaced apart side plates vertically fixed on the bottom plate, which is not limited in particular.

[0131] The traction device 1, the buffer device 2, the roll changing device, and the winding device 6 are sequentially mounted on the device body 7.

[0132] The traction device 1 is used to pull the strip and cut off the tension; the buffer device 2 is used to compensate for the change in the length of the strip when the roll changing device is performing the roll changing operation; the winding device 6 comprises at least two winding assemblies; and the two winding assemblies are sequentially and spaced apart in the vertical direction.

[0133] Further, as shown in Figure 7 , the traction device 1 comprises a pinch roller 14, a traction roller 18, a pinch adjustment assembly, and a traction driver 11.

[0134] The traction driver 11 (which is a rotary motor) is connected with the traction roller 18, and is used to drive the traction roller 18 to rotate (the traction roller 18 cooperates with the pinch roller 14 to achieve tension cutting and strip traction). Taking the traction driver 11 as a rotary motor as an example, the output shaft of the traction driver 11 is connected with a traction reducer 12 (a conventional motor reducer) to increase the output torque; and the traction reducer 12 can be fixed through a connecting mounting seat 13, and the output shaft of the traction reducer 12 is connected with the traction roller 18 through the connecting mounting seat 13.

[0135] The pinch roller 14 is arranged parallel to one side of the traction roller 18 (the pinch roller 14 is used as a back roller to cooperate to achieve tension cutting, and a rubber-coated roller is used as the pinch roller 14 in the application); the pinch adjustment assembly is connected with the pinch roller 14, and is used to adjust the swing amplitude of the pinch roller 14 relative to the traction roller 18, so as to adjust the pinch degree of the pinch roller 14 and the traction roller 18 on the strip.

[0136] For the design of the pinch adjustment assembly, a swing arm 15, an adjustment assembly 16, and a swing driver 17 are included.

[0137] The swing arm 15 is connected to the end connecting shaft of the clamping roller 14, the adjusting assembly 16 is connected with the swing arm 15, and the swing arm 15 is used for adjusting the movement amplitude of the swing arm 15 to adjust the clamping degree of the clamping roller 14; the swing driver 17 is a telescopic air cylinder, which is used for driving the swing arm 15 to move to realize the clamping and loosening action of the clamping roller 14. Of course, in addition to the above structure design, the swing control mechanism of the existing clamping roller 14 can also be designed for reference, and details are not described herein.

[0138] Further, as shown in Figure 8 , the buffer device 2 comprises a fixed roller 27, a floating roller 25, a floating frame 28, a fourth linear guide rail 22 and a floating driver 21.

[0139] The fourth linear guide rail 22 is vertically arranged, and the fourth linear guide rail 22 can be designed as two groups, which are distributed in parallel and at intervals, so as to provide more stable and reliable sliding connection effect.

[0140] The floating frame 28 is slidingly installed on the fourth linear guide rail 22, and specifically slidingly installed between the two groups of fourth linear guide rails 22. As for the design of the floating frame 28, it can be designed to comprise two floating side plates 24 and two floating top plates 26; the two floating side plates 24 are distributed in parallel and at intervals, the floating roller 25 is rotatably installed between the two floating side plates 24, and the two floating top plates are arranged in parallel and at intervals on the top of the two floating side plates 24, and a gap space is formed therebetween for avoiding the strip passing through the floating roller 25.

[0141] The floating roller 25 is rotatably installed on the floating frame 28, and the fixed roller 27 is arranged below the floating roller 25 (the fixed roller 27 can be two, and arranged in parallel and at intervals on both sides below the floating roller 25).

[0142] The floating driver 21 is connected with the floating frame 28, and is used for driving the floating frame 28 to move in the vertical direction.

[0143] The designed buffer device 2 can compensate the change of the linear speed of the strip movement caused by the fluctuation of the winding angular speed, and simultaneously compensate the length change of the strip in real time during the roll changing process.

[0144] Further, as shown in Figure 8 , the floating frame 28 is provided with a second ball screw 23; the floating driver 21 is a rotary motor, which is connected with the screw rod of the second ball screw 23, and is used for driving the screw rod to rotate to drive the floating frame 28 to move in the vertical direction.

[0145] Taking the rotary motor as an example, the output end of the rotary motor can be connected with a floating reducer (a conventional motor reducer), and then connected with the screw rod through a corresponding transmission assembly, so as to drive the screw rod of the second ball screw 23 to rotate, and details are not described herein.

[0146] Further, as shown in Figure 9As shown, the winding assembly is used for winding the strip, and includes a winding driver 65 and a winding shaft 62 (in this application, an air shaft is used as the winding shaft 62).

[0147] The take-up driver 65 is connected to the take-up shaft 62 and is used to drive the take-up shaft 62 to rotate. The take-up driver 65 is fixedly installed through the take-up mounting base 61. The take-up driver 65 is a rotary motor, and its output shaft is connected to the take-up shaft 62 through the second synchronous belt drive assembly 64. One end of the take-up shaft 62 connected to the take-up driver 65 is connected and fixed to the shaft mounting base 63, and the take-up shaft 62 is installed and fixed through the shaft mounting base 63.

[0148] When the material roll spread on the take-up shaft 62 reaches the set value and needs to be switched, the action is performed, which can be divided into three actions: belt break, switching, and belt connection.

[0149] Breaking belt action

[0150] The winding drive 65 of the winding assembly slows down and stops. The pressing drive 54 on the cutting assembly 5 extends to drive the pressing strip 56 to clamp the strip. The cutting drive 59 extends to drive the cutting knife 510 to move upward and cut the strip through the cutting knife 510. Then the cutting drive 59 retracts, the pressing drive 54 remains extended, and the pressing strip 56 remains clamped on the strip.

[0151] Switch Actions

[0152] The roll changing assembly 3 drives the following assembly 4 and the cutting assembly 5 to move upwards to the position of the new (empty) take-up assembly above. The floating driver 21 of the buffer device 2 drives the floating roller 25 to move in real time to compensate for changes in the strip length. The take-up shaft 62 located above is pre-loaded with a roll, and double-sided tape is attached to the roll.

[0153] Relay action

[0154] The following component 4 uses the first tracking driver 41 to make the tracking roller 52 reach the right zero point. The buffer device 2 drives the floating roller 25 to move and compensate for the change in strip length in real time. The tracking roller 52 extends through the second tracking driver 55 and drives it to move to the right. At the same time, it drives the strip to stick to the drum of the upper take-up shaft 62. The pressure driver 54 retracts, the pressure bar 56 releases the clamping of the strip, the upper take-up driver 65 starts, and after slowly winding for several turns, the second tracking driver 55 retracts. The upper take-up driver 65 gradually accelerates to the set value to wind up.

[0155] The roll changing equipment designed in this application overcomes the technical pain points of existing turret-type roll changing mechanisms, achieving the goals of small space occupation, safety and reliability, and convenient maintenance.

[0156] The roll changing device and equipment provided by the application are described in detail above. For those skilled in the art, the specific implementation manners and application scopes can be changed according to the idea of the embodiments of the application. In conclusion, the content of the specification should not be understood as a limitation of the application.

Claims

1. A roll changing device, characterized in that, The roll changing assembly (3), the following assembly (4) and the cutting assembly (5) are included. The following assembly (4) is installed on the roll changing assembly (3) and includes a following body (48), a tracking roller (52) and a tracking drive assembly (49). The tracking roller (52) is rotatably installed on the following body (48). The tracking drive assembly (49) is connected with the tracking roller (52) and used to drive the tracking roller (52) to move in a horizontal straight line. The cutting assembly (5) is installed on the following body (48) and used to cut the strip between the tracking roller (52) and the roll on the winding shaft (62). The roll changing assembly (3) is used to drive the following assembly (4) and the cutting assembly (5) to move in a vertical direction.

2. The roll changer according to claim 1, characterized in that The following body (48) includes two following installation plates (43). The two following installation plates (43) are arranged in parallel and at intervals. The tracking roller (52) is rotatably installed between the two following installation plates (43). The tracking drive assembly (49) includes a first tracking drive unit. The first tracking drive unit includes a first tracking driver (41) and a first linear guide rail (45). At least one of the following installation plates (43) is slidably installed on the roll changing assembly (3) along the horizontal straight line through the first linear guide rail (45). The first tracking driver (41) is connected with one of the following installation plates (43) and used to drive the connected following installation plate (43) to move in the horizontal straight line.

3. The roll changer according to claim 2, characterized in that A rack (47) parallel to the first linear guide rail (45) is fixed on the following installation plate (43) connected with the first tracking driver (41). The first tracking driver (41) is a rotary motor, and an output shaft of the rotary motor is connected with a gear engaged with the rack (47).

4. The roll changer of claim 2, wherein The following body (48) further includes a roller mounting frame (410). The tracking drive assembly (49) further includes a second tracking drive unit. The second tracking drive unit includes a second linear guide rail (53) and a second tracking driver (55). The roller mounting frame (410) is slidably installed between the two following installation plates (43) along the horizontal straight line through the second linear guide rail (53). The tracking roller (52) is rotatably installed on the roller mounting frame (410). The second tracking driver (55) is installed on the following installation plate (43) and connected with the roller mounting frame (410) and used to drive the roller mounting frame (410) to move in the horizontal straight line.

5. The roll changer of claim 1, wherein The following assembly (4) further includes two following passing rollers (44). The two following passing rollers (44) are rotatably installed on the following body (48) and located on a side of the tracking roller (52) away from the winding shaft (62). The two following passing rollers (44) are arranged in an upper and lower interval.

6. The roll changer of claim 1, wherein The following assembly (4) further includes a strip sensor (46) installed on the following body (48) and used to detect the thickness of the roll on the winding shaft (62).

7. The roll changer of claim 1, wherein The cutting assembly (5) includes a cutting unit and a pressing unit. The belt pressing unit is installed on the following body (48) and above the tracking roller (52) to press the belt on the tracking roller (52); The belt cutting unit is installed on the following body (48) and on the side of the tracking roller (52) towards the winding shaft (62) to cut the belt between the tracking roller (52) and the roll on the winding shaft (62).

8. The roll changer according to claim 7, characterized in that The belt pressing unit comprises a belt pressing strip (56) and a belt pressing driver (54); The belt pressing driver (54) is installed on the following body (48) and the driving end is connected with the belt pressing strip (56) to drive the belt pressing strip (56) to move close to or away from the tracking roller (52).

9. The roll changer of claim 7, wherein The belt cutting unit comprises a belt cutting mounting plate (51), a belt cutting knife (510) and a belt cutting driver (59); The belt cutting mounting plate (51) is fixed on the following body (48); The belt cutting driver (59) is installed on the bottom of the belt cutting mounting plate (51) and the driving end is upwardly movable through the belt cutting mounting plate (51) and connected with the belt cutting knife (510) to drive the belt cutting knife (510) to move to cut the belt; The bottom of the belt cutting knife (510) is fixed with a guide rod (511); The belt cutting mounting plate (51) is fixed with a linear bearing (58) through which the guide rod (511) is movable.

10. The roll changing device according to claim 1, characterized in that The roll changing assembly (3) comprises a fixing frame (39), a third linear guide rail (37) and a roll changing driver (32); The third linear guide rail (37) is vertically arranged; The fixing frame (39) is slidingly installed on the third linear guide rail (37); The roll changing driver (32) is connected with the fixing frame (39) to drive the fixing frame (39) to move in the vertical direction.

11. The roll changing device according to claim 10, characterized in that The fixing frame (39) is installed with a first ball screw (31); The roll changing driver (32) is a rotary motor which is connected with the screw rod of the first ball screw (31) to drive the fixing frame (39) to move in the vertical direction by driving the screw rod to rotate.

12. A roll changing apparatus characterized by The device comprises a device body (7), a traction device (1), a buffer device (2), a winding device (6) and the roll changing device as claimed in any one of claims 1 to 11; The traction device (1), the buffer device (2), the roll changing device and the winding device (6) are sequentially installed on the device body (7); The traction device (1) is used to traction the belt and separate the tension; The buffer device (2) is used to compensate the length change of the belt when the roll changing device is working; The winding device (6) comprises at least two winding assemblies; The two winding assemblies are sequentially and spacedly arranged in the vertical direction.

13. The roll changing apparatus according to claim 12, characterized in that, The traction device (1) comprises a clamping roller (14), a traction roller (18), a clamping adjusting assembly and a traction driver (11); The traction driver (11) is connected with the traction roller (18) to drive the traction roller (18) to rotate; The clamping roller (14) is parallelly arranged on the side of the traction roller (18); The clamping adjusting assembly is connected with the clamping roller (14) and used for adjusting the swing range of the clamping roller (14) relative to the traction roller (18) to adjust the clamping degree of the strip between the clamping roller (14) and the traction roller (18).

14. The roll changing apparatus according to claim 12, characterized by The buffer device (2) comprises a fixed roller (27), a floating roller (25), a floating frame (28), a fourth linear guide rail (22) and a floating driver (21); The fourth linear guide rail (22) is vertically arranged; The floating frame (28) is slidingly installed on the fourth linear guide rail (22); The floating roller (25) is rotatably installed on the floating frame (28); The fixed roller (27) is arranged below the floating roller (25); The floating driver (21) is connected with the floating frame (28) and used for driving the floating frame (28) to move in the vertical direction.

15. The roll changing apparatus according to claim 14, characterized in that, The floating frame (28) is installed with a second ball screw (23); The floating driver (21) is a rotary motor, which is connected with a screw rod of the second ball screw (23) and used for driving the floating frame (28) to move in the vertical direction by driving the screw rod to rotate.

16. The change apparatus according to claim 12, characterized by The winding assembly comprises a winding driver (65) and a winding shaft (62); The winding driver (65) is connected with the winding shaft (62) and used for driving the winding shaft (62) to rotate.

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