Material roll transfer device and roll changing apparatus

Abstract

The application provides a material roll transfer device and a roll changing equipment. The material roll transfer device comprises a roll unwinding device and a material storage device. The roll unwinding device can place a material roll and output a material belt. The material storage device can store multiple new material rolls, and can move to a material loading station for receiving a new material roll and a roll changing station for providing a new material roll to the roll unwinding device in an empty state. In this way, the problem of downtime and roll changing due to the untimely provision of a new material roll during production is greatly avoided, and the production efficiency is effectively ensured. In this way, the worker only needs to monitor in a timely manner, and does not need to participate in frequent material loading operations, thereby solving the problem of frequent material loading operations by workers and the hidden danger of downtime and roll changing in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery production, in particular to a roll transfer device and a roll changing device. BACKGROUND

[0002] In the production process of the battery cell, the consumption of the roll of the electrode sheet or the diaphragm is large, and the process of replacing the new roll occurs frequently. However, in the process of transferring the new roll to the work station of the output roll, the operator needs to pay attention frequently to add the roll to the roll shaft on which the standby new roll is placed in time, and if it is not timely, the problem of stopping and changing the roll will be caused, which exists the hidden danger of reducing the production efficiency. In order to reduce the frequency of the operator's feeding, and at the same time improve the production efficiency, the design of the roll changing device which can automatically change the roll is particularly important. SUMMARY

[0003] Therefore, the present application provides a roll transfer device and a roll changing device to solve the problem that the roll changing device in the prior art needs frequent feeding operation of the operator and has the hidden danger of stopping and changing the roll.

[0004] In order to achieve the above purpose, the present application provides the following technical scheme:

[0005] A roll transfer device, comprising:

[0006] A roll unwinding device capable of placing a roll and outputting a roll belt;

[0007] A roll storage device capable of storing multiple new rolls, and capable of moving to a feeding work station for receiving a new roll and a roll changing work station for providing a new roll to the roll unwinding device in an empty roll state.

[0008] Optionally, the roll unwinding device comprises a positive electrode roll unwinding device and a negative electrode roll unwinding device, and the roll changing work station comprises:

[0009] A positive electrode roll changing work station for providing a new roll from the roll storage device to the positive electrode roll unwinding device;

[0010] A negative electrode roll changing work station for providing a new roll from the roll storage device to the negative electrode roll unwinding device;

[0011] Wherein, the roll storage device can be transferred from the feeding work station to the positive electrode roll changing work station, and can also be transferred from the feeding work station to the negative electrode roll changing work station.

[0012] Optionally, the positive electrode roll changing work station, the feeding work station and the negative electrode roll changing work station are arranged in sequence along a first straight line direction, and a straight line driving assembly drives the roll storage device to move along the first straight line direction.

[0013] Optionally, the storage device comprises a positive electrode storage device and a negative electrode storage device, and the positive electrode roll changing station, the feeding station and the negative electrode roll changing station are arranged in a circle.

[0014] The positive electrode storage device is transferred between the positive electrode roll changing station and the feeding station by translation, and the negative electrode storage device is transferred between the negative electrode roll changing station and the feeding station by translation.

[0015] Alternatively, the positive electrode storage device is transferred between the positive electrode roll changing station and the feeding station by rotation around a first axis, and the negative electrode storage device is transferred between the negative electrode roll changing station and the feeding station by rotation around a second axis.

[0016] Alternatively, the positive electrode storage device and the negative electrode storage device are transferred between the positive electrode roll changing station and the feeding station, and between the negative electrode roll changing station and the feeding station, respectively, by rotation around the same axis.

[0017] Optionally, it further comprises a roll core collecting device capable of taking away the roll core on the unwinding device, so that the unwinding device is in an empty state.

[0018] Optionally, the roll core collecting device comprises:

[0019] a first roll core pushing assembly arranged on the unwinding device and capable of pushing the roll core away from the unwinding device;

[0020] a roll core receiving support;

[0021] a roll core receiving driving assembly driving the roll core receiving support to move so that the roll core receiving support can be located at a roll core receiving position close to the unwinding device and a transfer position away from the unwinding device.

[0022] Optionally, the roll core collecting device further comprises a roll core storage structure and a second roll core pushing assembly; wherein,

[0023] when the roll core receiving support is in the transfer position, it is located between the roll core storage structure and the second roll core pushing assembly;

[0024] the second roll core pushing assembly is capable of pushing the roll core in the transfer position into the roll core storage structure.

[0025] Optionally, the roll core receiving driving assembly comprises:

[0026] an arm swingably connected with the roll core receiving support;

[0027] a connecting rod swingably connected with the arm swing through a rotating shaft;

[0028] A driving cylinder is movably connected with the connecting rod and drives the connecting rod to rotate through the telescopic belt, so as to drive the swing arm to rotate.

[0029] Optionally, the unwinding device comprises:

[0030] An unwinding shaft is capable of placing a roll of material;

[0031] An unwinding driving assembly is arranged to drive the unwinding shaft to rotate, so as to output the material belt from the roll of material;

[0032] A deviation rectifying roller is arranged to press against the output material belt, so as to fix the moving track of the material belt.

[0033] Optionally, the unwinding device is capable of moving to the abutment of the unwinding shaft and the storage shaft of the storage device under the driving of the unwinding deviation rectifying assembly.

[0034] Optionally, the storage device comprises:

[0035] A storage shaft is capable of arranging a plurality of new rolls of material in an axial sleeve manner and is capable of axially opposing the unwinding shaft of the unwinding device;

[0036] A material pushing assembly is arranged on the storage shaft and is capable of pushing the new roll of material out of the storage shaft.

[0037] Optionally, a plurality of roll sensors capable of detecting the new roll of material located on the storage shaft are arranged on the storage shaft in an axial manner, each new roll of material corresponds to at least one roll sensor, and the roll sensor is in communication connection with the material pushing assembly.

[0038] Optionally, a cover body capable of accommodating the new roll of material is arranged on the storage shaft.

[0039] Optionally, an edge of the core receiving support is provided with a blocking edge for preventing the roll core from sliding off.

[0040] Optionally, a surface of the core receiving support for contacting the roll core is an arc surface provided with a soft layer.

[0041] A roll changing equipment comprises a rack, a belt receiving device and the roll transferring device in any one of the above, the belt receiving device and the unwinding device are arranged on the rack, and the belt receiving device is capable of connecting the new material belt on the unwinding device to the old material belt.

[0042] Optionally, the belt receiving device comprises:

[0043] A material cutting mechanism is arranged on the rack, is capable of cutting the passing old material belt and positioning the generated old material end to a first belt receiving area, and is capable of cutting the passing new material belt and positioning the generated new material end to a second belt receiving area.

[0044] A starting mechanism is arranged on the frame and capable of clamping a starting end of a new material roll and leading the new material tape through the cutting mechanism;

[0045] A taping mechanism is arranged on the frame and capable of providing a tape and moving the tape to the first taping area and the second taping area to connect the new material end and the old material end.

[0046] Optionally, the cutting mechanism comprises:

[0047] A first positioning structure capable of positioning and de-positioning the material tape to form the first taping area on the surface;

[0048] A second positioning structure arranged along the moving direction of the material tape with the first positioning structure and capable of positioning and de-positioning the material tape to form the second taping area on the surface;

[0049] A knife assembly capable of cutting the material tape between the first positioning structure and the second positioning structure.

[0050] Optionally, the taping mechanism comprises:

[0051] A taping block;

[0052] A tape supply assembly capable of providing the taping block with a tape;

[0053] A second driving assembly driving the taping block to move in a first direction so that a tape-attached side of the taping block reaches the first taping area and the second taping area;

[0054] Wherein, the positioning combination formed by the first positioning structure and the second positioning structure is capable of moving in a second direction to reach a position opposite to the taping block; and / or, the knife assembly is capable of moving in the second direction to leave between the taping block and the positioning combination.

[0055] Optionally, the taping mechanism is provided with two groups of taping blocks symmetrically distributed with respect to the positioning combination, and the positioning combination and the knife assembly are both capable of moving in the second direction to enable double-sided taping of the connection between the new material end and the old material end.

[0056] Optionally, the starting mechanism comprises a displacement assembly and a clamping assembly arranged on the displacement assembly, and the clamping assembly comprises:

[0057] A first roller;

[0058] A second roller arranged side by side with the first roller and provided with an adsorption structure capable of adsorbing the material tape;

[0059] A third driving assembly driving the first roller and the second roller to rotate to clamp the adsorbed material tape.

[0060] The displacement assembly can move the clamping assembly to different positions, including a starting position close to the material roll head, a cutting position that pulls the material roll head away from the material roll until the material strip is exposed at the cutting part, and a standby position away from the material roll along the axial direction of the material roll.

[0061] Optionally, the starting mechanism may further include a waste collection assembly capable of collecting the cut waste released by the clamping assembly.

[0062] The material roll transfer device provided in this application includes an unwinding device and a storage device. The unwinding device can place material rolls and output material strips; the storage device can store multiple new material rolls and can move to a loading station to receive new material rolls and a changing station to provide new material rolls to the unwinding device when it is empty. With this configuration, the storage device has multiple new material rolls on hand. When the unwinding device outputting the material strip needs to replace the material rolls, the storage device moves to the changing station to transfer the new material rolls. When the spare new material rolls on the storage device are used up or the stock is low, the storage device moves to the loading station to receive new material rolls transported by an external transport mechanism. The storage device is then fully stocked again, greatly avoiding the problem of downtime for changing rolls due to untimely supply of new material rolls during production, effectively ensuring production efficiency. In this way, operators only need to monitor the process as needed, without having to participate in frequent loading operations, solving the problem of frequent loading operations and potential downtime for changing rolls in existing technology. Attached Figure Description

[0063] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0064] Figure 1 This is a top view of the roll changing equipment provided in an embodiment of this application;

[0065] Figure 2 This is a schematic diagram of the main structure of the roll changing device provided in the embodiments of this application;

[0066] Figure 3 A schematic diagram showing the distribution of the roll changing station and the loading station during the translation of the storage device provided in the embodiments of this application;

[0067] Figure 4 This is a schematic diagram showing the distribution of the roll changing station and the loading station when the storage device provided in the embodiment of this application swings.

[0068] Figure 5A distribution diagram of the roll changing station and the feeding station of the storage device provided in the embodiment of the present application is shown in the figure;

[0069] Figure 6 A structure diagram of the unwinding device provided in the embodiment of the present application is shown in the figure;

[0070] Figure 7 A sectional view of the storage device provided in the embodiment of the present application is shown in the figure;

[0071] Figure 8 A structure diagram of the storage device provided in the embodiment of the present application is shown in the figure;

[0072] Figure 9 A structure diagram of the roll core collecting device provided in the embodiment of the present application is shown in the figure;

[0073] Figure 10 A structure diagram of the roll core collecting device provided in the embodiment of the present application is shown in the figure;

[0074] Figure 11 A structure diagram of the roll core collecting device provided in the embodiment of the present application is shown in the figure;

[0075] Figure 12 A structure diagram of the roll core collecting device provided in the embodiment of the present application is shown in the figure;

[0076] Figure 13 A structure diagram of the roll core collecting device provided in the embodiment of the present application is shown in the figure;

[0077] Figure 14 A structure diagram of the roll core collecting device provided in the embodiment of the present application is shown in the figure;

[0078] Figure 15 A structure diagram of the roll core collecting device provided in the embodiment of the present application is shown in the figure;

[0079] Figure 16 A structure diagram of the roll core collecting device provided in the embodiment of the present application is shown in the figure;

[0080] Figure 17 A structure diagram of the roll core collecting device provided in the embodiment of the present application is shown in the figure;

[0081] Figure 18 A structure diagram of the roll core collecting device provided in the embodiment of the present application is shown in the figure;

[0082] Figure 19 A structure diagram of the roll core collecting device provided in the embodiment of the present application is shown in the figure;

[0083] Figure 20 A structure diagram of the roll core collecting device provided in the embodiment of the present application is shown in the figure;

[0084] Figure 21The structure schematic view of the material clamping assembly provided by the embodiment of the present application is located at standby station.

[0085] Figure 22 The structure schematic view of the material clamping assembly provided by the embodiment of the present application is located at standby station.

[0086] In Figures 1-22 In

[0087] 1, unwinding device; 2, material storage device; 3, winding core collecting device; 4, rack; 6, rubber sticking mechanism; 7, starting mechanism; 8, new material winding; 9, old material belt; 10, winding core;

[0088] 11, unwinding machine base; 12, unwinding shaft; 13, unwinding driving assembly; 14, deviation rectifying roller; 15, unwinding deviation rectifying assembly;

[0089] 21, material storage machine base; 22, material storage shaft; 23, material pushing assembly; 24, material winding sensor; 25, cover body; 26, linear driving assembly; 27, connecting arm; 28, support base; 29, universal ball;

[0090] 31, first winding core pushing assembly; 32, winding core receiving support; 33, winding core storage structure; 34, second winding core pushing assembly; 35, swing arm; 36, connecting rod; 37, driving cylinder; 38, rotating shaft;

[0091] 321, blocking edge;

[0092] 51, first positioning structure; 52, second positioning structure; 53, knife assembly; 54, pressing block;

[0093] 531, knife mounting seat; 532, knife body;

[0094] 61, rubber sticking block; 62, rubber preparation assembly; 63, second driving assembly;

[0095] 621, fixed suction disc; 622, rubber pulling roller; 623, rubber belt roll;

[0096] 71, material clamping assembly; 72, fifth driving assembly; 73, sixth driving assembly; 74, waste material collecting assembly;

[0097] 711, first roller; 712, second roller; 713, suction structure; 714, first gear; 715, second gear;

[0098] 81, roller; 82, pressing roller. DETAILED DESCRIPTION

[0099] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0100] As shown in Figures 1-5 The present application provides a material roll transfer device, which comprises a material roll unwinding device 1 and a material roll storage device 2 arranged oppositely, wherein the material roll unwinding device 1 can place a material roll and output a material belt; the material roll storage device 2 can store multiple new material rolls 8 and can move to a material loading station for receiving a new material roll 8 and a material roll changing station for providing a new material roll 8 to the material roll unwinding device 1 in an empty material state. The material roll unwinding device 1 is integrated on a rack 4; the material roll storage device 2 can be integrated on the rack 4 or arranged separately relative to the material roll unwinding device 1.

[0101] In this way, multiple new material rolls 8 are prepared on the material roll storage device 2, when the material roll unwinding device 1 outputting the material belt needs to be replaced with a new material roll, the material roll storage device 2 moves to the material roll changing station to perform a transfer operation of the new material roll 8, when the new material rolls 8 on the material roll storage device 2 are used up or the storage amount is small, the material roll storage device 2 moves to the material loading station to receive a new material roll 8 transported by an external transport mechanism, and the material roll storage device 2 again completes sufficient material preparation, greatly avoiding the problem of downtime for material roll replacement due to the untimely provision of new material rolls 8 in production, effectively ensuring production efficiency. In this way, the staff only needs to monitor in time, without participating in frequent material loading operations, thereby solving the problem of frequent material loading operations by the staff and the hidden danger of downtime for material roll replacement in the prior art.

[0102] In a specific embodiment, the material roll unwinding device 1 comprises positive and negative material roll unwinding devices 1 arranged side by side, and the material roll changing station comprises a positive material roll changing station and a negative material roll changing station; wherein the positive material roll changing station is used for the material roll storage device 2 to provide a new material roll 8 to the positive material roll unwinding device 1, specifically, the material roll storage device 2 is opposite to the positive material roll unwinding device 1 when the material roll storage device 2 is located at the positive material roll changing station; the negative material roll changing station is used for the material roll storage device 2 to provide a new material roll 8 to the negative material roll unwinding device 1, specifically, the material roll storage device 2 is opposite to the negative material roll unwinding device 1 when the material roll storage device 2 is located at the negative material roll changing station; the material roll storage device 2 can be transferred from the material loading station to the positive material roll changing station or the negative material roll changing station, and the material roll storage device 2 is staggered relative to the positive material roll unwinding device 1 and the negative material roll unwinding device 1 when the material roll storage device 2 is located at the material loading station.

[0103] In this way, in the production process of the general battery, the positive electrode sheet and the negative electrode sheet are simultaneously output on the two unwinding devices 1. In this embodiment, the positive electrode unwinding device 1 and the negative electrode unwinding device 1 share one feeding station, and one set of storage device 2 can provide roll replacement for two sets of unwinding devices 1, so that the maximum storage is realized, the overall structure is compact and orderly, the degree of manual intervention is low, and the automation degree in the production of the battery is further improved.

[0104] In an optional embodiment, the positive electrode roll replacement station, the feeding station and the negative electrode roll replacement station are arranged along the horizontal first linear direction in sequence, that is, the feeding station is located between the positive electrode roll replacement station and the negative electrode roll replacement station, and the linear driving assembly 26 drives the storage device 2 to move along the first linear direction. The linear driving assembly 26 can be a structure of a motor cooperating with a screw nut, or can be a gas cylinder, a hydraulic cylinder or other linear actuating elements.

[0105] In this way, if there is enough space between the positive electrode unwinding device 1 and the negative electrode unwinding device 1 due to the design requirements of the workshop layout, and the external transport trolley is allowed to transport a plurality of new material rolls 8, then the space between the positive electrode roll replacement station and the negative electrode roll replacement station on the opposite side is also sufficient to accommodate the storage device 2 and the external transport trolley for docking, the space layout utilization rate is sufficient, the equipment space is saved, and the equipment cost is reduced. Of course, if the space between the positive electrode unwinding device 1 and the negative electrode unwinding device 1 is limited, the feeding station can be arranged at the end of the moving track of the storage device 2.

[0106] In addition to the case that the positive electrode unwinding device 1 and the negative electrode unwinding device 1 share one set of storage device 2, in an optional embodiment, the storage device 2 includes a positive electrode storage device 2 and a negative electrode storage device 2 to work with the positive electrode unwinding device 1 and the negative electrode unwinding device 1 respectively.

[0107] Specifically, the positive electrode storage device 2 can move along the first linear direction between the positive electrode roll replacement station and the feeding station, and the negative electrode storage device 2 can move along the first linear direction between the negative electrode roll replacement station and the feeding station, and the layout is similar to the above-mentioned embodiment of sharing one set of storage device 2.

[0108] In addition, the positive electrode roll replacement station, the feeding station and the negative electrode roll replacement station can also be arranged circumferentially, that is, the axes corresponding to the three stations of the storage device 2 fall on the same circle, and are distributed in a triangular shape; wherein, it can be subdivided into three ways:

[0109] The positive electrode storage device 2 is transferred between the positive electrode roll replacement station and the feeding station by translation, and the negative electrode storage device 2 is transferred between the negative electrode roll replacement station and the feeding station by translation, and the driving assembly for driving the positive electrode storage device 2 and the negative electrode storage device 2 to translate can be a structure of a motor cooperating with a screw nut, or can be a gas cylinder, a hydraulic cylinder or other linear actuating elements;

[0110] Alternatively, the positive electrode storage device 2 is transferred between the positive electrode roll changing station and the feeding station by rotating around a first axis, and the negative electrode storage device 2 is transferred between the negative electrode roll changing station and the feeding station by rotating around a second axis, the driving assembly for driving the positive electrode storage device 2 and the negative electrode storage device 2 to rotate respectively can be a motor or a rotary oil cylinder driving a connecting arm 27, and the positive electrode storage device 2 and the negative electrode storage device 2 are arranged at the end of the corresponding connecting arm 27 respectively, and are in a swing state.

[0111] Alternatively, the positive electrode storage device 2 and the negative electrode storage device 2 are transferred between the positive electrode roll changing station and the feeding station, and between the negative electrode roll changing station and the feeding station respectively by rotating around the same axis, the driving assembly for driving the positive electrode storage device 2 and the negative electrode storage device 2 to rotate simultaneously can be a motor or a rotary oil cylinder driving a support seat 28 located at the center of the three stations to rotate, and the positive electrode storage device 2 and the negative electrode storage device 2 are arranged on the support seat 28, and each rotation of 120° completes a station change.

[0112] It should be noted that the circumferential arrangement of the positive electrode roll changing station, the feeding station and the negative electrode roll changing station is arranged by using the longitudinal space, for example, the positive electrode roll changing station and the negative electrode roll changing station are arranged on the same plane, and the feeding station is arranged higher or lower than the positive electrode roll changing station and the negative electrode roll changing station. In this way, the material roll transfer device provides multiple optional ways for the layout of the workshop, flexibly occupies the longitudinal space and the transverse space, and has strong implementability.

[0113] In a preferred embodiment, as shown in Figures 9-11 Since the old material roll on the unwinding device 1 is left with the roll core 10 after the output of the material roll, the roll core 10 needs to be removed before the new material roll 8 arrives, so the material roll transfer device further includes a roll core collecting device 3 capable of removing the roll core 10 on the unwinding device 1, so that the unwinding device 1 is in an empty state. In this way, the roll core 10 is automatically removed, replacing manual work, further reducing the degree of human participation.

[0114] Specifically, the roll core collecting device 3 can include a core receiving support 32, a first core pushing assembly 31 and a core receiving driving assembly. The first core pushing assembly 31 is arranged on the unwinding device 1 and can push the roll core 10 away from the unwinding device 1. The core receiving driving assembly drives the core receiving support 32 to move so that the core receiving support 32 can be located at a core receiving position and a transfer position. When located at the core receiving position, the core receiving support 32 is close to the unwinding device 1 and located at the end of the unwinding shaft 12 to receive the roll core 10 pushed out from the unwinding shaft 12. When located at the transfer position, the core receiving support 32 is away from the unwinding device 1 to remove the roll core 10. It should be noted that the first core pushing assembly 31 can be in the form of a cylinder, a hydraulic cylinder or other linear actuator driving a push block to move back and forth.

[0115] In this way, the staff does not need to carefully avoid the roll changing device with many components to take out the roll core 10, the action of taking out the roll core 10 is performed through the mechanical and electrical structure, and the integrated control of the overall roll changing device is facilitated, and the degree of automation is optimized.

[0116] In detail, the edge of the roll core receiving support 32 is provided with a blocking edge 321 for preventing the roll core 10 from falling off, which is distributed on the edge in front of the movement of the roll core 10 and the edge on the side opposite to the swing arm 35 of the roll core receiving support 32. In addition, the surface of the roll core receiving support 32 for contacting the roll core 10 is an arc surface provided with a soft layer, so that the roll core 10 is more reliable and will not fall off.

[0117] Further, the roll core collecting device 3 further comprises a roll core storage structure 33 and a second roll core pushing assembly 34; the roll core receiving support 32 is located between the roll core storage structure 33 and the second roll core pushing assembly 34 when it is in the transfer position; and the second roll core pushing assembly 34 can push the roll core 10 in the transfer position into the roll core storage structure 33. It should be noted that the second roll core pushing assembly 34 can be in the form of a cylinder, a hydraulic cylinder or other linear actuator driving a push block to reciprocate; and the roll core storage structure 33 can be box-shaped or groove-shaped and has a certain length along the action direction of the second roll core pushing assembly 34, and can accommodate a plurality of roll cores 10.

[0118] In this way, the roll cores 10 are uniformly and centrally collected after being taken out, and the roll core storage structure 33 is full after the device is operated for a period of time, and then the staff can empty it, thereby reducing the degree of manual participation.

[0119] In addition, the roll core receiving drive assembly comprises a swing arm 35, a connecting rod 36 and a drive cylinder 37; the first end of the swing arm 35 is fixedly connected with the roll core receiving support 32; the connecting rod 36 is rotatably connected with the second end of the swing arm 35 through a pivot 38 and a bearing; one end of the drive cylinder 37 is mounted on the rack 4, and the other end is movably connected with the connecting rod 36 through a hinge, and drives the connecting rod 36 to rotate through the extension, so that the swing arm 35 rotates under the driving of the connecting rod 36, and then the roll core receiving support 32 can swing. The drive cylinder 37 is a cylinder or a hydraulic cylinder.

[0120] In this way, the drive cylinder 37 is thin and long in size and occupies a small space, which is conducive to the reasonable layout in the structure of the complicated roll transfer device. Of course, the roll core receiving drive assembly can also be in the form of a motor or a rotary oil cylinder driving the swing arm 35 to rotate.

[0121] In another specific embodiment, as shown in FIG. 6, the roll core receiving drive assembly comprises a swing arm 35, a connecting rod 36 and a drive cylinder 37; the first end of the swing arm 35 is fixedly connected with the roll core receiving support 32; the connecting rod 36 is rotatably connected with the second end of the swing arm 35 through a pivot 38 and a bearing; one end of the drive cylinder 37 is mounted on the rack 4, and the other end is movably connected with the connecting rod 36 through a hinge, and drives the connecting rod 36 to rotate through the extension, so that the swing arm 35 rotates under the driving of the connecting rod 36, and then the roll core receiving support 32 can swing. The drive cylinder 37 is a cylinder or a hydraulic cylinder. Figure 6As shown, the setting unwinding device 1 includes an unwinding base 11 and an unwinding shaft 12, an unwinding drive assembly 13 and a deviation rectifying roller 14 integrated on the unwinding base 11; wherein the unwinding shaft 12 can place a roll of material, the length of which matches the width of a single new roll of material 8; the unwinding drive assembly 13 drives the unwinding shaft 12 to rotate to output the material tape from the roll of material; the deviation rectifying roller 14 is used to press against the output material tape, and no matter how much the roll of material is left, the material tape is wound around the deviation rectifying roller 14 to fix the moving track of the material tape, facilitating the subsequent splicing process of the new and old material tapes 9. The unwinding drive assembly 13 is a common design in the prior art, which can be set as a motor or a rotary oil cylinder driving the unwinding shaft 12 to rotate through a gear set.

[0122] Further, the unwinding base 11 is provided below with an unwinding deviation rectifying assembly 15, and the unwinding device 1 can be moved to the third linear direction under the driving of the unwinding deviation rectifying assembly 15, so that the unwinding shaft 12 is connected to the storage shaft 22 of the storage device 2 through a male-female joint, which can make the movement of the new roll of material 8 more stable and accurate. The unwinding deviation rectifying assembly 15 can be a structure of a motor cooperating with a lead screw nut, or a gas cylinder, a hydraulic cylinder or other linear actuating elements.

[0123] It should be noted that when the material tape output by the unwinding device 1 is deviated, the tension is uneven, and the tape surface is uneven, the unwinding deviation rectifying assembly 15 cooperates with the deviation rectifying roller 14 to additionally adjust the position of the unwinding base 11 to a small extent, so that the material tape is normally output.

[0124] In another specific embodiment, as shown in Figures 7-8 the storage device 2 is provided with a storage base 21 and a storage shaft 22 and a material pushing assembly 23 integrated on the storage base 21; wherein the storage shaft 22 can be arranged in the axial direction for multiple new rolls of material 8, and can be opposite to the unwinding shaft 12 of the unwinding device 1 in the axial direction, preferably connected; the material pushing assembly 23 is arranged on the storage shaft 22 and can push the new roll of material 8 out of the storage shaft 22, and specifically the distance pushed out by the material pushing assembly 23 in a single action is the width of a single roll of material. It should be noted that the storage shaft 22 can be replaced by a roll storage type; the material pushing assembly 23 is a common design in the prior art, which can be set as a motor driving a lead screw nut assembly, and the material pushing member is connected to the nut and protrudes from the storage shaft 22.

[0125] Further, a plurality of roll sensors 24 capable of detecting the new roll 8 on the storage shaft 22 are arranged on the storage shaft 22 in the axial direction, each new roll 8 corresponds to at least one roll sensor 24, and the roll sensor 24 is in communication connection with the pushing assembly 23. For example, when the storage shaft 22 is full, each new roll 8 blocks one roll sensor 24. When one new roll 8 is pushed out, one roll sensor 24 is exposed and sends a signal to the control system to control the pushing distance of the next action of the pushing assembly 23. Preferably, mounting grooves are arranged on the storage shaft 22, and the roll sensors 24 are arranged in the mounting grooves, and a cover plate is arranged on the mounting grooves as protection. In addition, the roll sensor 24 can be a photoelectric detection switch or an infrared sensor.

[0126] In addition, a plurality of universal balls 29 or rolling bearings arranged in the axial direction can also be arranged on the storage shaft 22 to enable the new roll 8 to be smoothly removed.

[0127] More preferably, the storage shaft 22 is provided with a cover 25 capable of accommodating the new roll 8. The cover 25 is in the shape of a cylinder and is coaxially arranged with the storage shaft 22, and can cover all the new rolls 8, so as to isolate the roll from the dust in the production environment, and also facilitate the centralized cleaning of the roll dust.

[0128] Based on the above roll transfer device, the embodiment of the present application further provides a roll changing device. As shown in the figure, the roll changing device comprises a rack 4, a tape connecting device, and the roll transfer device described above. The tape connecting device and the unwinding device 1 are arranged on the rack 4, and the tape connecting device can connect the new tape on the unwinding device 1 to the old tape 9. Since the roll changing device has the roll transfer device described above, the beneficial effects of the roll changing device brought by the roll transfer device are described above and will not be repeated here. Figures 12-22

[0129] In a specific embodiment, the tape connecting device comprises a cutting mechanism, a leader mechanism 7, and a taping mechanism 6 arranged on the rack 4. The cutting mechanism is arranged around the unwinding device 1 where the roll is placed, and is arranged around the path through which the output tape passes. The cutting mechanism can cut the passing old tape 9 and position the generated old tape end to the first tape connecting area, and can cut the passing new tape and position the generated new tape end to the second tape connecting area. The leader mechanism 7 can clamp the leader of the new roll 8 and drive the new tape to pass through the cutting mechanism. The taping mechanism 6 can provide adhesive tape and move the adhesive tape to cover the first tape connecting area and the second tape connecting area, so as to connect the old tape end and the new tape end.

[0130] ​The tape connecting device is arranged in the roll changing device and near the unwinding device 1 of the output roll, the old tape 9 in the output passes through the cutting mechanism, the old tape 9 is cut by the cutting mechanism, and the generated old tape end is positioned in the first tape connecting area, the new roll 8 is replaced on the unwinding device 1, the leader mechanism 7 clamps the tape head of the new roll 8 and passes the new tape through the cutting mechanism, the cutting mechanism is actuated again to cut the new tape, and the generated new tape end is positioned in the second tape connecting area, finally, the adhesive tape is adhered to the old tape end and the new tape end by the adhesive mechanism 6, and the tape connecting process is completed; in this way, the adhesive position of the tape connecting is always the first tape connecting area and the second tape connecting area, the tape connecting consistency is high, the whole process is completed by cooperation of three groups of mechanisms, the automation degree is high, the personnel operation strength is reduced, the production efficiency is improved, and the problems of low production efficiency and poor tape connecting consistency caused by manual operation in the prior art are solved.

[0131] In a specific embodiment, the cutting mechanism is provided with a first positioning structure 51, a second positioning structure 52 and a knife assembly 53; wherein the first positioning structure 51 and the second positioning structure 52 are arranged next to each other; the first positioning structure 51 can position and release the positioning of the tape to form a first tape connecting area on the surface; the second positioning structure 52 is arranged along the moving direction of the tape with the first positioning structure 51, and can position and release the positioning of the tape to form a second tape connecting area on the surface; the knife assembly 53 can cut the tape between the first positioning structure 51 and the second positioning structure 52.

[0132] In this way, the old tape 9 and the new tape pass through the same path in turn, and the knife assembly 53 cuts the old tape 9 and the new tape in turn, and the tape end is fixed in a certain position, corresponding Figures 15-16 In the tape connecting process action I and the tape connecting process action II, since the cutting positions of the old tape 9 and the new tape are the same, the splicing position can be neat and without stacking.

[0133] It should be noted that the knife assembly 53 can be arranged opposite to the first positioning structure 51 and the second positioning structure 52, that is, the tape passes through between the knife assembly 53 and the first positioning structure 51 and the second positioning structure 52; or the knife assembly 53 and the first positioning structure 51 and the second positioning structure 52 can be arranged on the same side, and the cutting edge of the knife assembly 53 can extend out of the first positioning structure 51 and the second positioning structure 52. In addition, the first positioning structure 51 and the second positioning structure 52 can be integrated on the same mounting structure, and the two can move synchronously to provide enough space for the leader mechanism 7 to pass through.

[0134] Further, the first positioning structure 51 and the second positioning structure 52 can each comprise a negative pressure suction cup connected to an external negative pressure machine, and the negative pressure suction cup can adsorb and release the adsorption of the material belt. In this way, the positioning of the material belt can be controlled by starting and stopping the external negative pressure machine, and the overall mechanical and electrical control is facilitated.

[0135] In a preferred embodiment, the knife assembly 53 is arranged opposite to the first positioning structure 51 and the second positioning structure 52, and the material cutting mechanism further comprises a pressing block 54 connected to the knife assembly 53. The pressing block 54 can reach the first belt area and the second belt area before the knife assembly 53 and press the material belt, and the knife assembly 53 can be extended relative to the pressing block 54 to cut the material belt.

[0136] In this way, before the knife assembly 53 acts to cut the material, the pressing block 54 is first pressed onto the material belt, achieving secondary positioning. Moreover, this can ensure that the material to be cut has a better tension, and when the blade contacts the material belt, the material belt will not deviate and will not be out of the positioning of the positioning structure, providing good conditions for the knife assembly 53 to cut the material belt, allowing rapid cutting and a flat cut.

[0137] Further, the knife assembly 53 comprises a knife mounting seat 531, a knife body 532, and a first driving assembly. The knife body 532 is arranged on the knife mounting seat 531 and can be a cutter or a scissors. The first driving assembly drives the knife mounting seat 531 to reciprocate in a first direction, so that the knife body 532 can extend between the first positioning structure 51 and the second positioning structure 52. The pressing block 54 is connected to the knife mounting seat 531 by a resilient member. When the pressing block 54 does not contact the material belt, it protrudes beyond the knife body 532 in the first direction. After the pressing block 54 is pressed onto the material belt, it is close to the knife mounting seat 531 due to the compression of the resilient member. At this time, the knife body 532 protrudes beyond the pressing block 54. It should be noted that the pressing block 54 is designed in a split type and is located on both sides of the knife body 532 to correspond to the first positioning structure 51 and the second positioning structure 52, respectively. In addition, the first driving assembly can be a pneumatic cylinder, a hydraulic cylinder, or other linear actuator.

[0138] Regarding the way the pressing block 54 contacts the material belt before the knife body 532, in addition to the above-mentioned spring mounting of the pressing block 54 on the knife mounting seat 531, the pressing block 54 can also be arranged on the knife mounting seat 531 by a power cylinder, and the movement of the pressing block 54 relative to the knife mounting seat 531 is driven by the power cylinder.

[0139] In another specific embodiment, the adhesive applying mechanism 6 comprises an adhesive applying block 61, an adhesive preparation assembly 62, and a second driving assembly 63; the adhesive preparation assembly 62 can provide adhesive tape to the adhesive applying block 61; one side of the adhesive applying block 61 facing the first positioning structure 51 and the second positioning structure 52 is provided with a negative pressure suction cup capable of adsorbing and releasing the adhesive tape, or the edge position of the adhesive applying block 61 is provided with a clamping piece capable of clamping the adhesive tape; the second driving assembly 63 drives the adhesive applying block 61 to move in the first direction, so that the side of the adhesive applying block 61 with the adhesive tape reaches the first tape connecting area and the second tape connecting area; the positioning combination formed by the first positioning structure 51 and the second positioning structure 52 can move in the second direction to reach a position opposite to the adhesive applying block 61; and / or the knife assembly 53 can move in the second direction to move away from the adhesive applying block 61 and the positioning combination, all of which are to adjust the working condition without obstruction between the adhesive applying block 61 and the first positioning structure 51 and the second positioning structure 52. It should be noted that the movement of the positioning combination is realized by setting a corresponding driving assembly, such as a pneumatic cylinder or a hydraulic cylinder; the second driving assembly 63 can be a pneumatic cylinder, a hydraulic cylinder, or other linear actuator.

[0140] In this way, the structural components of the adhesive applying mechanism 6 and the material cutting mechanism are compactly integrated in the coordinate system space, the linear movement of each component is orderly and there is no confliction and interference, the cooperation degree is high, and the automation degree is optimized.

[0141] It should be noted that the adhesive preparation assembly 62 provides adhesive tape to the adhesive applying block 61 multiple times, which is a common technical means in the prior art. The adhesive tape wound around the adhesive tape roll 623 can be adsorbed by the fixed suction cup 621, the movable adhesive tape pulling roller 622 can pull the adhesive tape adsorbed by the fixed suction cup 621 to the front of the adhesive applying block 61, after the adhesive applying block 61 takes the adhesive tape, the cutting knife between the adhesive applying block 61 and the fixed suction cup 621 cuts the adhesive tape to complete the adhesive preparation once. For details, refer to patent CN208889765U, an automatic adhesive preparation device.

[0142] In a preferred embodiment, the adhesive applying mechanism 6 is provided with two groups symmetrically distributed with respect to the positioning combination, and the positioning combination and the knife assembly 53 can move and avoid in the second direction to enable double-sided adhesive application at the connection between the new material end and the old material end. Correspondingly Figures 17-18 The third and fourth tape connecting process actions are performed.

[0143] In this way, after the single-sided adhesive application of the new material end and the old material end is completed, the relative positions are fixed, at this time, the positioning combination releases the positioning of the material tape and moves away, and the other adhesive applying mechanism 6 acts to apply adhesive on the other side of the material tape again, thereby enhancing the stability and reliability of the tape connection; moreover, the cut end of the material tape is covered on both sides without exposure, thereby avoiding the problem of scratching the roller surface and forming metal particles.

[0144] In another specific embodiment, the starting mechanism 7 comprises a displacement assembly arranged on the frame 4 and a clamping assembly 71 arranged on the displacement assembly.

[0145] The clamping assembly 71 comprises a first roller 711, a second roller 712 and a third driving assembly. The second roller 712 is arranged side by side with the first roller 711, and the second roller 712 is provided with an adsorption structure 713 capable of adsorbing the material tape. The third driving assembly drives the first roller 711 and the second roller 712 to rotate to clamp the adsorbed material tape. When the third driving assembly is reversely driven, the first roller 711 and the second roller 712 can release the material tape. In terms of positional relationship, the rotation axes of the first roller 711 and the second roller 712 are parallel to the central axis of the material roll.

[0146] In this way, the clamping assembly 71 is arranged near the new material roll 8. First, the adsorption structure 713 is adsorbed with the outermost material tape of the new material roll 8. Then, the third driving assembly is operated to drive the first roller 711 and the second roller 712 to rotate simultaneously. In this way, the adsorbed material tape is gradually clamped by the first roller 711 and the second roller 712 under the driving of the second roller 712, thereby achieving reliable fixation. At the same time, the material head is torn off due to the pulling of the material tape during this period, so that the operator does not need to frequently perform the operation of tearing and pulling the material head. Moreover, since the first roller 711 and the second roller 712 are arranged side by side and clamped by rotation without relative displacement, the overall structure of the clamping assembly 71 is compact and concentrated, the required working space is small, the adaptability is strong, and the clamping assembly 71 is flexible to arrange in the roll changing equipment. At the same time, it is also helpful for the layout design of the roll changing equipment. Furthermore, since the second roller 712 has the ability to rotate clockwise and counterclockwise, it can be compatible with material tapes of different rotation directions in actual operation.

[0147] It should be noted that, in order to ensure that the action of clamping the material head is more reliable, the lengths of the first roller 711 and the second roller 712 are preferably matched with the width of the material tape. More specifically, the first roller 711 and the second roller 712 can be arranged side by side in the horizontal direction or in the vertical direction, which can be specifically selected according to the position of the material head of the new material roll 8 and the direction of the clamping assembly 71 relative to the new material roll 8. In order to achieve better pulling effect of the new material tape, the second roller 712 is preferably arranged below the first roller 711, and the adsorption structure 713 is arranged on the downward face of the second roller 712.

[0148] Regarding the clamping cooperation between the first roller 711 and the second roller 712, in an optional embodiment, at least one of the first roller 711 and the second roller 712 is an eccentric structure or a sector structure, so that the first roller 711 and the second roller 712 can rotate to the state of abutting against each other and moving away from each other; wherein the eccentric structure comprises a rotating part and an abutting part arranged away from the rotating axis; the cross section of the sector structure is sector-shaped, so that the edges have different distances from the rotating axis;

[0149] Alternatively, at least one of the first roller 711 and the second roller 712 is provided with a pressing protrusion, which can abut against the other roller when rotating.

[0150] In this way, for the first roller 711 being the eccentric structure, initially, the suction structure 713 faces downward, and after being sucked to the material belt, the third driving assembly is driven to rotate the second roller 712 and make the material belt have a small degree of winding on the second roller 712, while the abutting part of the first roller 711 gradually approaches and abuts against the second roller 712, the gap between the first roller 711 and the second roller 712 disappears, and the material belt is clamped; the fifth driving assembly 72 is reversely driven to make the first roller 711 and the second roller 712 again return to the state of having a gap, and the material belt can be released. In this way, the material belt is clamped and released by the different degrees of the gap between the first roller 711 and the second roller 712 when rotating to different positions, and the cooperation relationship is ingenious and convenient for mechanical and electrical control.

[0151] In a specific embodiment, the third driving assembly comprises a first gear 714, a second gear 715 and a first power source; wherein the first gear 714 is in transmission connection with the first roller 711; the second gear 715 is in transmission connection with the second roller 712 and is in meshing with the first gear 714; the first power source drives the first gear 714 or the second gear 715 to rotate, and specifically can be in transmission connection with the first roller 711. It should be noted that the first power source can be a motor or a rotary oil cylinder.

[0152] In this way, the first roller 711 and the second roller 712 are driven by one power source, and the rotating synchronization between them is strong, and since they rotate in opposite directions, this way is conducive to clamping the material belt tighter and tighter, and the clamping reliability is high and the material belt is not easy to fall off; moreover, the cooperation mode of the double gears and the power source has low requirements for the assembly space. Of course, the first roller 711 and the second roller 712 can also be arranged to rotate in the same direction by using a synchronous wheel structure; or two motors are arranged to respectively drive the first roller 711 and the second roller 712 to rotate.

[0153] In another specific embodiment, the suction structure 713 comprises a suction disc and a negative pressure channel; wherein the suction disc is arranged on the second roller 712; the negative pressure channel is arranged in the second roller 712 and is in communication with the suction disc to provide negative pressure to the suction disc. It should be noted that the negative pressure channel is externally connected to a negative pressure device through a negative pressure joint.

[0154] In this way, the adsorption of the material belt is reliable, and the adsorption can be easily released, and the controllability is strong; and the suction cup has a certain elasticity, and can be compatible with material rolls of different diameters. Of course, the adsorption structure 713 can also be set as a common suction cup or a sticky adhesive.

[0155] In addition, the material clamping assembly 71 is arranged on the displacement assembly assembly, and the displacement assembly assembly can drive the material clamping assembly 71 to move at least in the second direction and the third direction, so that the material clamping assembly 71 is in different positions, including a starting position close to the head of the material roll, and a cutting position for pulling the head of the material roll away from the material roll to expose the cutting position of the material belt. The starting mechanism 7 is integrated above the new material roll 8.

[0156] In this way, when the material clamping assembly 71 is in the starting position, the material belt is clamped, and after moving to the cutting position in the state of clamping the material belt, the material head can be pulled out, so that a part of the new material belt is exposed, so that the pulled-out new material belt can be cut off in the subsequent splicing process; in this way, automatic starting is realized, the operation strength of the worker is reduced, and the production efficiency is improved.

[0157] Further, the position of the material clamping assembly 71 also includes a standby position away from the material roll in the axial direction of the material roll. In this way, after the new material belt is cut off and the splicing with the old material belt 9 is completed, the material clamping assembly 71 moves away in the axial direction of the material roll to avoid interference with the output of the material belt, and the clamped waste material after cutting returns to the standby position, and then the waste material is released to wait for the next operation.

[0158] In another specific embodiment, the displacement assembly assembly specifically includes a fifth driving assembly 72 and a sixth driving assembly 73; the material clamping assembly 71 is arranged on the sixth driving assembly 73, and the sixth driving assembly 73 can drive the material clamping assembly 71 to move between the starting position and the cutting position in the second direction; the sixth driving assembly 73 is arranged on the fifth driving assembly 72, and the fifth driving assembly 72 can drive the sixth driving assembly 73 to move in the third direction, so that the material clamping assembly 71 moves between the cutting position and the standby position; the material clamping assembly 71 moves in the second direction and then moves in the third direction, so as to move from the standby position to the starting position.

[0159] In this way, the material clamping assembly 71 can move in the plane coordinate system through the two driving assemblies, which meets the condition of moving between the three positions, and the electromechanical control is convenient. It should be noted that the fifth driving assembly 72 and the sixth driving assembly 73 can be set as a structure of a motor driving screw nut, or a gas cylinder, a hydraulic cylinder, or other linear actuators.

[0160] In a preferred embodiment, the starting mechanism 7 is further provided with a waste collecting assembly 74, which is capable of collecting the cut waste released by the clamping assembly 71 at the standby station. In this way, the cut waste is collected in a centralized manner, and the risk of being randomly discarded and disturbing the normal output of the material belt is eliminated. The staff only needs to clean up in a timely manner, thereby reducing the labor workload.

[0161] In a specific embodiment, the waste collecting assembly 74 is provided with a collecting box and a seventh driving assembly, which drives the collecting box to move so that the collecting box can move below the standby station. Specifically, the seventh driving assembly can be a pneumatic cylinder, a hydraulic cylinder or other linear actuator. Of course, the collecting box can also be fixed below the standby station.

[0162] In a preferred embodiment, the clamping assembly 71 is provided on a first mounting seat, the fifth driving assembly 72 is provided on a second mounting seat, the second mounting seat is connected with the rack 4, and the sixth driving assembly 73 is provided on a third mounting seat. Specifically, the second mounting seat and the third mounting seat are provided with a first guide assembly extending in the second direction; and / or, the first mounting seat and the second mounting seat are provided with a second guide assembly extending in the third direction.

[0163] In this way, the movement of the clamping assembly 71 is smooth and stable, and its position control is more accurate. Specifically, the first guide assembly and the second guide assembly can be provided in the form of a sliding block and a sliding rail, or a linear bearing and a guide rod.

[0164] In another preferred embodiment, the belt connecting device is further provided with a clamping roller mechanism arranged on the rack 4, which is used to clamp and position the old material belt 9 in the moving direction of the material belt, so as to prevent the old material belt 9 from being pulled away due to tension. In this way, since the old material belt 9 is still being output, the clamping roller mechanism can prevent the old material belt 9 from being pulled away due to poor adsorption of the first positioning structure 51, thereby effectively ensuring the smooth progress of the belt connecting process.

[0165] Further, the clamping roller mechanism is provided with a passing roller 81 and a pressing roller 82; wherein the passing roller 81 is used to abut against the material belt; and a fourth driving assembly drives the pressing roller 82 to approach and move away from the passing roller 81, so as to clamp and release the material belt. In this way, the old material belt 9 passes around the passing roller 81 in the output path away from the belt connecting device, and when the belt connecting process starts, the pressing roller 82 acts to press the old material belt 9 onto the passing roller 81, and the pressing roller 82 is released after the belt connecting process is completed.

[0166] In addition, the pinch roller mechanism preferably further comprises a power source for driving the over roller 81 to rotate, so that the over roller 81 can assist in the output of the old material tape 9 and the pulling back of the old material tape 9. In this way, in the tape connecting process, the over roller 81 appropriately pulls back the old material tape 9, preventing the old material end from being separated from the first positioning structure 51, and after the tape connection is completed, if the material tape is accumulated, the over roller 81 can be reversely rotated to assist in the output of the material tape.

[0167] It should be noted that when each driving assembly in the tape connecting device is arranged, a guide assembly can also be selectively arranged. The guide assembly can be a combination of a sliding block and a sliding rail, or a combination of a guide rod and a linear bearing.

[0168] It should be noted that in the present application, the direction layout of the coordinate system can be arranged as follows: the first direction is a horizontal direction, the second direction is a vertical direction, and the third direction is a horizontal direction perpendicular to the first direction; the first direction is the first linear direction, shown as the A direction in the figure, the second direction is the second linear direction, shown as the B direction in the figure, and the third direction is the third linear direction, shown as the C direction in the figure.

[0169] The above describes the basic principles of the present application in combination with specific embodiments, but it should be noted that the advantages, advantages, effects and the like mentioned in the present application are only examples and not limitations, and these advantages, advantages, effects and the like cannot be considered as necessary for each embodiment of the present application. In addition, the above specific details are only for the purpose of example and for the purpose of understanding, and are not limited to the present application, and the above specific details do not limit the present application to the above specific details.

[0170] The block diagrams of the devices, apparatuses, equipment, systems involved in the present application are only illustrative examples and are not intended to require or imply the connection, arrangement, configuration shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, systems can be connected, arranged, configured in any manner. Words such as "include", "contain", "have" and the like are open-ended words, which mean "including but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0171] It should also be noted that in the devices, equipment and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombination should be considered as equivalent solutions of the present application.

[0172] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0173] It should be understood that the limiting words "first", "second", "third", "fourth", "fifth" and "sixth" used in the embodiments description of the present application are only used for more clearly explaining the technical solutions, and cannot be used to limit the protection scope of the present application.

[0174] The above description has been presented for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the application to the forms disclosed herein. Although several example aspects and embodiments have been discussed above, those of ordinary skill in the art will appreciate a variety of modifications, alternatives, permutations, additions, and sub-combinations of the described aspects and embodiments.

Claims

1. A roll changing device, characterized in that, Includes frame (4), tape receiving device and roll transfer device; The roll transfer device includes: An unwinding device (1) is mounted on the frame (4) and is capable of placing the material roll and outputting the material strip. The storage device (2) is capable of storing multiple new rolls (8), and the storage device (2) can be moved to the loading station and the roll changing station. When the storage device (2) is located at the loading station, it can receive new rolls (8). When the storage device (2) is located at the roll changing station, it can provide new rolls (8) to the unwinding device (1) in the empty state. The tape-connecting device is mounted on the frame (4) and is capable of connecting the new tape on the unwinding device (1) to the old tape (9). The tape-connecting device includes: The material cutting mechanism is installed on the frame (4) and can cut off the old material belt (9) that passes through and position the generated old material end to the first receiving area, and can cut off the new material belt that passes through and position the generated new material end to the second receiving area. The starting mechanism (7) is mounted on the frame (4). The starting mechanism (7) includes a displacement assembly and a clamping assembly (71) mounted on the displacement assembly. The clamping assembly (71) includes a first roller (711), a second roller (712), and a third drive assembly. The second roller (712) is arranged side by side with the first roller (711), and the second roller (712) is provided with an adsorption structure (713) that can adsorb the material strip. The third drive assembly drives the first roller (711) and the second roller (712) to rotate to clamp the adsorbed material strip. The displacement assembly can drive the clamping assembly (71) to different positions. The positions include a starting position close to the material roll head, a cutting position that pulls the material roll head away from the material roll until the material strip is exposed at the cutting part, and a standby position away from the material roll along the axial direction of the material roll, so that the starting mechanism (7) can clamp the head of a new material roll (8) and drive the new material strip through the cutting mechanism. The adhesive applicator (6) is mounted on the frame (4) and is capable of providing adhesive tape and moving the tape to the first tape-connecting area and the second tape-connecting area so that the old material end is connected to the new material end.

2. The roll changing device according to claim 1, characterized in that, The unwinding device (1) includes a positive unwinding device and a negative unwinding device, and the roll changing station includes: The positive electrode rewinding station is used to enable the storage device (2) to provide a new roll (8) to the positive electrode unwinding device. The negative electrode rewinding station is used to enable the storage device (2) to provide a new roll (8) to the negative electrode unwinding device. The material storage device (2) can be transferred from the feeding station to the positive electrode rewinding station, and also from the feeding station to the negative electrode rewinding station.

3. The roll changing device according to claim 2, characterized in that, The positive electrode rewinding station, the feeding station, and the negative electrode rewinding station are arranged sequentially along the first straight line direction, and the linear drive component (26) drives the storage device (2) to move along the first straight line direction.

4. The roll changing device according to claim 2, characterized in that, The material storage device (2) includes a positive electrode material storage device and a negative electrode material storage device, and the positive electrode rewinding station, the loading station, and the negative electrode rewinding station are arranged circumferentially; wherein, The positive electrode storage device is moved between the positive electrode rewinding station and the loading station by translation, and the negative electrode storage device is moved between the negative electrode rewinding station and the loading station by translation. Alternatively, the positive electrode storage device can be moved between the positive electrode rewinding station and the loading station by rotating about a first axis, and the negative electrode storage device can be moved between the negative electrode rewinding station and the loading station by rotating about a second axis. Alternatively, the positive electrode storage device and the negative electrode storage device can rotate around the same axis to transfer between the positive electrode rewinding station and the loading station, and between the negative electrode rewinding station and the loading station, respectively.

5. The roll changing device according to claim 1, characterized in that, It also includes a core collecting device (3) capable of removing the core (10) from the unwinding device (1) so that the unwinding device (1) is in an empty state.

6. The roll changing device according to claim 5, characterized in that, The core collecting device (3) includes: The first pusher assembly (31) is disposed on the unwinding device (1) and is capable of pushing the core (10) away from the unwinding device (1). Core support (32); The core-connecting drive assembly drives the core-connecting holder (32) to move so that the core-connecting holder (32) can be located in a core-connecting position close to the unwinding device (1) to receive the core (10) and in a transfer position away from the unwinding device (1).

7. The roll changing device according to claim 6, characterized in that, The core collecting device (3) further includes a core storage structure (33) and a second core pushing assembly (34); wherein, When the core receiving support (32) is in the transfer position, it is located between the core storage structure (33) and the second core pushing assembly (34); The second pusher assembly (34) is capable of pushing the core (10) located at the transfer position into the core storage structure (33).

8. The roll changing device according to claim 6, characterized in that, The connector drive assembly includes: The swing arm (35) is fixedly connected to the core support (32); The connecting rod (36) is rotatably connected to the swing arm (35) via a rotating shaft (38); The drive cylinder (37) is movably connected to the connecting rod (36) and drives the connecting rod (36) to rotate by extension and retraction, so that the swing arm (35) rotates.

9. The roll changing device according to claim 1, characterized in that, The unwinding device (1) includes: The unwinding shaft (12) is capable of holding the material roll; The unwinding drive assembly (13) drives the unwinding shaft (12) to rotate so that the material roll outputs the material strip; The guide roller (14) is used to press against the output belt to fix the movement trajectory of the belt.

10. The roll changing device according to claim 9, characterized in that, Driven by the unwinding correction assembly (15), the unwinding device (1) can move to the point where the unwinding shaft (12) connects with the storage shaft (22) of the storage device (2).

11. The roll changing device according to claim 1, characterized in that, The storage device (2) includes: The storage shaft (22) can accommodate multiple new rolls (8) arranged axially and can be axially opposite to the unwinding shaft (12) of the unwinding device (1); The pusher assembly (23) is disposed on the storage shaft (22) and is capable of pushing the new roll (8) out of the storage shaft (22).

12. The roll changing device according to claim 11, characterized in that, The storage shaft (22) is provided with a plurality of roll sensors (24) along the axial direction, which can detect new rolls (8) located on the storage shaft (22). Each new roll (8) corresponds to at least one roll sensor (24), and the roll sensor (24) is communicatively connected to the pusher assembly (23).

13. The roll changing device according to claim 11, characterized in that, The storage shaft (22) is provided with a cover (25) that can accommodate new material rolls (8).

14. The roll changing device according to claim 6, characterized in that, The edge of the core holder (32) is provided with a retaining edge (321) to prevent the core (10) from slipping off.

15. The roll changing device according to claim 6, characterized in that, The surface of the core holder (32) that contacts the core (10) is an arc surface with a soft layer.

16. The roll changing device according to claim 1, characterized in that, The material cutting mechanism includes: The first positioning structure (51) is capable of positioning and depositioning the strip to form the first strip contact area on the surface; The second positioning structure (52) is arranged along the moving direction of the material belt with the first positioning structure (51), and can position and release the material belt to form the second contact area on the surface; The blade assembly (53) is capable of disconnecting the strip between the first positioning structure (51) and the second positioning structure (52).

17. The roll changing device according to claim 16, characterized in that, The adhesive applicator (6) includes: Apply adhesive blocks (61); The adhesive preparation assembly (62) is capable of providing adhesive tape to the adhesive block (61); The second driving component (63) drives the adhesive block (61) to move along a first direction so that the side of the adhesive block (61) with the adhesive tape reaches the first tape-connecting area and the second tape-connecting area. The positioning combination formed by the first positioning structure (51) and the second positioning structure (52) can move along the second direction to reach a position opposite to the adhesive block (61); and / or, the blade assembly (53) can move along the second direction to leave between the adhesive block (61) and the positioning combination.

18. The roll changing device according to claim 17, characterized in that, The adhesive applicator (6) has two sets of symmetrically distributed about the positioning assembly. Both the positioning assembly and the knife assembly (53) can move along the second direction so that the connection between the new material end and the old material end is coated with adhesive on both sides.

19. The roll changing device according to claim 1, characterized in that, The starting mechanism (7) also includes a waste collection assembly (74) capable of collecting the cut waste released by the clamping assembly (71).

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