Roll changing device and winding equipment

Abstract

The utility model relates to a roll changing device and winding equipment. The roll changing device comprises an unwinding mechanism used for loading a working material roll and a standby material roll and driving the working material roll to unwind and output a working material belt to the downstream; the belt connecting mechanism comprises a belt connecting assembly and a waste material collecting assembly, the belt connecting assembly is arranged at the downstream of the unwinding mechanism and is provided with a belt connecting channel through which a working material belt penetrates, and the waste material collecting assembly is arranged at the downstream side of the belt connecting assembly; the material penetrating mechanism comprises a driving assembly and a material penetrating assembly installed at the driving end of the driving assembly, and the driving assembly is used for driving the material penetrating assembly to move to the unwinding mechanism so that the material penetrating assembly can pick up the starting end of a material belt of the standby material roll on the unwinding mechanism; the driving assembly is further used for driving the material penetrating assembly to penetrate through the belt receiving channel and reach the downstream of the waste material collecting assembly. The waste material collecting assembly is used for winding the standby material belt passing by.

Description

TECHNICAL FIELD

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

[0002] In the process of battery manufacturing, the material belt on the material roll often needs to be continuously unwound and output to the downstream, for example, in the winding process of the battery cell, the pole piece needs to be continuously unwound and output to the winding device. When the working material belt on the working material roll is unwound, the working material belt needs to be cut off, and then the working material belt is connected with the standby material belt of the standby material roll, so as to continue to unwind and output the material belt to the downstream, that is, the roll changing is completed.

[0003] In the prior art, in order to realize the smooth connection of the working material belt and the standby material belt, the head end of the material belt on the standby material roll needs to be manually pulled to a specified state, and the standby material belt needs to be fixed, cut, and pasted with double-sided adhesive tape, etc. Therefore, the automation degree of the roll changing device is not high, personnel need to be on duty, the labor cost is increased, and the production efficiency is reduced. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a roll changing device and a winding device with high automation degree, which can improve the production efficiency and reduce the labor cost.

[0005] A roll changing device comprises:

[0006] An unwinding mechanism is used to load a working material roll and a standby material roll, and drive the working material roll to unwind and output the working material belt to the downstream;

[0007] A belt connecting mechanism comprises a belt connecting assembly and a waste material collecting assembly. The belt connecting assembly is arranged downstream of the unwinding mechanism and has a belt connecting channel for the working material belt to pass through. The waste material collecting assembly is arranged on the downstream side of the belt connecting assembly; and

[0008] A material threading mechanism comprises a driving assembly and a material threading assembly installed on the driving end of the driving assembly. The driving assembly is used to drive the material threading assembly to move to the unwinding mechanism, so that the material threading assembly picks up the starting end of the material belt of the standby material roll on the unwinding mechanism. The driving assembly is also used to drive the material threading assembly to pass through the belt connecting channel and reach the downstream of the waste material collecting assembly. The waste material collecting assembly is used to wind the standby material belt passing through.

[0009] In some embodiments, the material threading assembly has a glue roller for adsorbing the adhesive tape;

[0010] Under the driving action of the driving assembly, the material threading assembly can abut against the standby material roll on the unwinding mechanism by using the glue roller, so that the adhesive tape on the glue roller is bonded with the starting end of the material belt on the standby material roll.

[0011] In some embodiments, the glue absorbing roller is controllable to rotate around its own axis to wind the standby adhesive tape on the standby tape roll at the unwinding mechanism, and unwind the standby adhesive tape and the adhesive tape downstream of the waste collecting assembly.

[0012] In some embodiments, the tape feeding assembly comprises a first mounting base, a first rotary driving member and a first rotary seat, the first mounting base is mounted on the driving end of the driving assembly, the first rotary driving member is mounted on the first mounting base, the first rotary seat is mounted on the driving end of the first rotary driving member, and the glue absorbing roller is mounted on the first rotary seat.

[0013] In some embodiments, the tape feeding assembly further comprises a first sliding seat and a second sliding seat, both of which are arranged on the first rotary seat, the glue absorbing roller comprises a first absorbing half-roller mounted on the first sliding seat and a second absorbing half-roller mounted on the second sliding seat, and the surfaces of the first absorbing half-roller and the second absorbing half-roller, which are away from each other, jointly form a roller surface for winding the adhesive tape.

[0014] The first sliding seat is controllable to drive the first absorbing half-roller to approach or move away from the second absorbing half-roller, and / or the second sliding seat is controllable to drive the second absorbing half-roller to approach or move away from the first absorbing half-roller.

[0015] In some embodiments, the surfaces of the first absorbing half-roller and the second absorbing half-roller, which are away from each other, are absorbing surfaces for absorbing the adhesive tape arranged thereon.

[0016] In some embodiments, the tape feeding assembly further comprises a first clamping driving member mounted on the first rotary seat, a driving end of the first clamping driving member is connected with the first sliding seat to drive the first sliding seat to approach or move away from the second sliding seat; and / or

[0017] The glue taking assembly further comprises a second clamping driving member mounted on the first rotary seat, a driving end of the second clamping driving member is connected with the second sliding seat to drive the second sliding seat to approach or move away from the first sliding seat.

[0018] In some embodiments, the driving assembly comprises a driving unit, a third moving seat and an elastic buffer, the third moving seat is mounted on the driving end of the driving unit, the first mounting base is movably connected with the third moving seat, and two ends of the elastic buffer are respectively connected with the first mounting base and the third moving seat.

[0019] In some embodiments, the driving assembly is configured to drive the first mounting base to move in a first direction and a second direction, or in the first direction, the second direction and a third direction; wherein the first direction, the second direction and the third direction are intersected with each other, and the third direction is consistent with the axial direction of the glue absorbing roller.

[0020] In some embodiments, the waste collecting assembly comprises a first moving base, a second rotating driving member and a collecting roller, the second rotating driving member is mounted on the first moving base, and the collecting roller is mounted on the first moving base and connected with the driving end of the second rotating driving member.

[0021] The collecting roller has an insertion slot for the standby material belt to pass through, the first moving base is configured to drive the collecting roller to move along the axial direction of the collecting roller, and the second rotating driving member is configured to drive the collecting roller to rotate so as to drive the standby material belt to be arranged on the collecting roller.

[0022] In some embodiments, the waste collecting assembly further comprises a connecting base, a pressing block and a first elastic member, the connecting base is arranged in a spaced manner with the collecting roller, the pressing block is movably connected to one side of the connecting base which faces the collecting roller, and the first elastic member is arranged between the connecting base and the pressing block, and the pressing block is pressed against the waste roll arranged on the collecting roller under the elastic force provided by the first elastic member.

[0023] In some embodiments, the belt connecting assembly comprises a first belt connecting unit and a second belt connecting unit, the first belt connecting unit and the second belt connecting unit are arranged in a spaced manner to form the belt connecting channel, and the unwinding mechanism comprises a first unwinding unit and a second unwinding unit which are both arranged upstream of the belt connecting channel, wherein the first unwinding unit is arranged on the same side with the first belt connecting unit, and the second unwinding unit is arranged on the same side with the second belt connecting unit.

[0024] The first unwinding unit, the second unwinding unit, the first belt connecting unit and the second belt connecting unit are all movable along the axial direction of the collecting roller.

[0025] In some embodiments, the first unwinding unit is configured to be controllably movable along the axial direction of the collecting roller, the second unwinding unit is configured to be controllably movable along the axial direction of the collecting roller, the first belt connecting unit is controllably connectable with or separable from the first unwinding unit, and the second belt connecting unit is controllably connectable with or separable from the second unwinding unit.

[0026] In some embodiments, the tape splicing mechanism further comprises a second clutch assembly, the second clutch assembly comprising a first clamping part and a first connecting part, one of the first clamping part and the first connecting part being mounted on the first unwinding unit, and the other being mounted on the first tape splicing unit, the first clamping part being controllably clamped or released on the first connecting part.

[0027] In some embodiments, the tape splicing mechanism further comprises a third clutch assembly, the third clutch assembly comprising a second clamping part and a second connecting part, one of the second clamping part and the second connecting part being mounted on the second unwinding unit, and the other being mounted on the second tape splicing unit, the second clamping part being controllably clamped or released on the second connecting part.

[0028] In some embodiments, the first tape splicing unit and the second tape splicing unit are alternatively connected with the first movement base.

[0029] In some embodiments, the tape splicing mechanism further comprises a first clutch assembly, the first clutch assembly comprising a clutch sliding base and a clutch driving member, the clutch driving member being mounted on the first movement base, the clutch sliding base being movably connected to the first movement base and connected with a driving end of the clutch driving member; the clutch driving member being capable of driving the clutch sliding base to move relative to the first movement base to a first position connected with the first tape splicing unit and a second position connected with the second tape splicing unit.

[0030] A winding device comprising the roll changing device as in any one of the preceding embodiments.

[0031] The roll changing device and the winding device described above pick up the starting end of the tape on the standby roll by the threading assembly, and then pull the starting end of the tape through the tape splicing channel and the waste tape collecting assembly in sequence, so that the waste tape collecting assembly can fix and wind the standby tape, that is, the starting end of the tape can be automatically pulled to the waste tape collecting assembly. Compared with the manual threading in the prior art, the roll changing device has greatly improved the automation degree, does not need personnel on duty, reduces the labor cost, and improves the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 FIG. 1 is a structural schematic diagram of a roll changing device according to an embodiment of the present application;

[0033] Figure 2 FIG. 2 is a structural schematic diagram of a standby tape feeding mechanism of the roll changing device shown in FIG. 1; Figure 1 FIG. 3 is a structural schematic diagram of the standby tape feeding mechanism of the roll changing device shown in FIG. 1 in another perspective view;

[0034] Figure 3 FIG. 4 is a structural schematic diagram of a tape splicing mechanism of the roll changing device shown in FIG. 1; Figure 2 FIG. 5 is a structural schematic diagram of the tape splicing mechanism of the roll changing device shown in FIG. 1 in another perspective view;

[0035] Figure 4 The action demonstration diagram of the tape feeding assembly of the roll changing device shown in Figure 1 The action demonstration diagram of the tape feeding assembly of the roll changing device shown in

[0036] Figure 5 The action demonstration diagram of the tape feeding assembly of the roll changing device shown in Figure 1 The action demonstration diagram of the tape feeding assembly of the roll changing device shown in

[0037] Figure 6 The structural schematic diagram of the tape receiving mechanism of the roll changing device shown in Figure 1

[0038] Figure 7 The structural schematic diagram of the driving assembly, the tape feeding assembly and the waste taking mechanism of the roll changing device shown in Figure 1

[0039] Figure 8 The structural schematic diagram of the tape feeding assembly shown in Figure 7

[0040] Figure 9 The structural schematic diagram of the waste taking mechanism shown in Figure 7

[0041] Figure 10 The demonstration diagram of the waste roll on the taking roll of the waste taking mechanism shown in Figure 9

[0042] Figure 11 The structural schematic diagram of the waste taking assembly of the tape receiving mechanism shown in Figure 6

[0043] Figure 12 The structural schematic diagram of the waste taking assembly and the tape receiving assembly of the tape receiving mechanism shown in Figure 6

[0044] Figure 13 The structural schematic diagram of the waste taking assembly and the tape receiving assembly shown in another view Figure 12

[0045] Figure 14 The structural schematic diagram of the waste taking assembly and the tape receiving assembly and the unwinding mechanism of the tape receiving mechanism shown in Figure 6

[0046] Figure 15 The structural schematic diagram of the material preparation mechanism of the roll changing device shown in Figure 1

[0047] Figure 16 The structural schematic diagram of the telescopic unit of the material preparation mechanism shown in Figure 15

[0048] ​​​​​​​​​​​Figure 17 for Figure 15 A schematic diagram of the material pushing block of the material preparation mechanism shown;

[0049] Figure 18 for Figure 1 The diagram shows the structure of the drive assembly and the material handling mechanism of the roll changing device.

[0050] Figure 19 for Figure 18 The diagram shows the structure of the material handling mechanism.

[0051] Figure 20 This diagram illustrates the action of transferring spare material rolls from the storage shaft of the material preparation mechanism to the picking shaft of the material picking mechanism.

[0052] Figure 21 This diagram illustrates the action of transferring the spare material roll from the pick-up shaft of the pick-up mechanism to the unwinding shaft of the unwinding mechanism.

[0053] Figure 22 This diagram illustrates the action of transferring the material cylinder from the unwinding shaft of the unwinding mechanism to the picking shaft of the picking mechanism.

[0054] Figure 23 for Figure 1 The diagram shows the structure of the unloading mechanism of the roll changing device;

[0055] Figure 24 for Figure 23 The diagram shows the unloading mechanism from another perspective. Detailed Implementation

[0056] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0057] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0058] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply or suggest relative importance or a number of the technical features indicated. Thus, the features defined as "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0059] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; 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 internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0060] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0061] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0062] Please refer to Figure 1 and Figure 6 The present application provides a roll changing device, which comprises a unwinding mechanism 31, a tape receiving mechanism 30 and a tape threading mechanism (not marked in the figure). The tape receiving mechanism 30 comprises a tape receiving assembly 32 and a waste material collecting assembly 33. The unwinding mechanism 31 is used to load a working roll and a standby roll A1 (see Figure 6), and drives the working material roll to output the working material tape downstream. The tape connecting assembly 32 is arranged downstream of the unwinding mechanism 31 and has a tape connecting passage g (see Figure 6 ) through which the working material tape unwound by the unwinding mechanism 31 passes. The tape connecting assembly 32 is used to cut the working material tape and the standby material tape when the working material roll is unwound, and to bond (i.e., connect) the downstream cut end of the working material tape and the upstream cut end of the standby material tape by using the adhesive tape e (see Figure 2 ).

[0063] It can be understood that the tape connecting assembly 32 needs to cut the working material tape and the standby material tape passing through the tape connecting passage g at the same time when connecting the tapes, and align the downstream cut end of the working material tape and the upstream cut end of the standby material tape, so that the tape connecting assembly 32 can paste the adhesive tape e to the downstream cut end of the working material tape and the upstream cut end of the standby material tape. Therefore, before the tape connecting assembly 32 connects the tapes, the tape starting end A3 of the standby material roll A1 on the unwinding mechanism 31 needs to be lifted, and then the tape starting end A3 needs to be pulled through the tape connecting passage g and to the downstream of the waste collecting assembly 33, so that the waste collecting assembly 33 can fix the standby material tape A2 passing through.

[0064] Specifically, the tape pulling mechanism includes a driving assembly 41 and a tape pulling assembly 42 mounted on the driving end of the driving assembly 41. The driving assembly 41 is used to drive the tape pulling assembly 42 to move to the unwinding mechanism 31, so that the tape pulling assembly 42 can pick up the tape starting end A3 of the standby material roll A1 on the unwinding mechanism 31. The driving assembly 41 is also used to drive the tape pulling assembly 42 to pass through the tape connecting passage g and to the downstream of the waste collecting assembly 33, so that the tape pulling assembly 42 can pull the tape starting end A3 of the standby material roll A1 through the tape connecting passage g and to the downstream of the waste collecting assembly 33, so that the waste collecting assembly 33 can fix the standby material tape A2 passing through. The tape pulling assembly 42 can also release the tape starting end A3 at the downstream of the waste collecting assembly 33, so that the waste collecting assembly 33 can wind the tape starting end A3.

[0065] In this way, the tape pulling assembly 42 can pick up the tape starting end A3 of the standby material roll A1 and pull the tape starting end A3 through the tape connecting passage g and the waste collecting assembly 33 in sequence, so that the waste collecting assembly 33 can fix and wind the standby material tape A2, that is, the pulling of the tape starting end A3 to the waste collecting assembly 33 can be automatically completed. Compared with the manual pulling of the prior art, the degree of automation of the roll changing device is greatly improved, and personnel on duty is not needed, which reduces labor costs and improves production efficiency.

[0066] It can be understood that the unwinding mechanism 31, the splicing assembly 32 and the waste material collecting assembly 33 cooperate to cut the working material tape and the standby material tape A2, and to use the adhesive tape e to bond the downstream cut end of the working material tape and the upstream cut end of the standby material tape A2. This is a relatively mature prior art, and thus will not be described here.

[0067] It should be emphasized that after the working material tape is cut, two cut ends are formed at the break, of which the upstream cut end is located upstream and the downstream cut end is located downstream. Similarly, after the standby material tape is cut, two cut ends are formed at the break, of which the upstream cut end is located upstream and the downstream cut end is located downstream. In this document, upstream and downstream are relative to the conveying path of the material tape. The position where the material tape arrives first is upstream, and the position where the material tape arrives later is downstream.

[0068] It should be noted that after the working material tape is cut by the splicing assembly 32, the part of the working material tape between the splicing assembly 32 and the unwinding mechanism 31 is also waste material. The unwinding mechanism 31 can be used to wind up this part of waste material, avoiding interference with the splicing action of the splicing assembly 32. After the standby material tape A2 is cut by the splicing assembly 32, the part of the standby material tape between the splicing assembly 32 and the waste material collecting assembly 33 is waste material. The waste material collecting assembly 33 can be used to wind up this part of waste material, avoiding interference with the splicing action of the splicing assembly 32.

[0069] In the embodiment of the present application, the roll changing device further comprises a glue providing mechanism 10, which is used to provide the adhesive tape e. The driving assembly 41 is further used to drive the threading assembly 42 to move to the glue providing mechanism 10, so that the threading assembly 42 can pick up the adhesive tape e provided by the glue providing mechanism 10.

[0070] Further, the driving assembly 41 is further used to drive the threading assembly 42 to move between the glue providing mechanism 10 and the splicing assembly 32. When the driving assembly 41 drives the threading assembly 42 to move to the splicing assembly 32, the splicing assembly 32 can transfer the picked-up adhesive tape e to the splicing assembly 32, so that the splicing assembly 32 uses the adhesive tape e to bond the downstream cut end of the working material tape and the upstream cut end of the standby material tape. In this way, the threading assembly 42 is used to realize threading of the standby material tape A2 of the standby material roll A1, and is also used to provide the adhesive tape e to the splicing assembly 32, which is advantageous to simplify the structure of the roll changing device and reduce the cost of the device.

[0071] Please refer to Figures 1 to 3 In specific embodiments, the threading assembly 42 has a glue suction roller 421 that can rotate around its own axis. The threading assembly 42 can use the glue suction roller 421 to fix the starting end of the adhesive tape e and wind the adhesive tape e at the glue providing mechanism 10. The glue providing mechanism 10 is used to cut the adhesive tape e, so that a certain length of the adhesive tape e is wound on the glue suction roller 421.

[0072] It should be noted that the prior art uses a tape pulling mechanism to pull out a certain length of tape e onto the tape suction plate, and then cuts the pulled-out tape e, and then transfers the tape e on the tape suction plate to the designated position. Compared with the prior art, in the embodiment, the starting end of the tape e is fixed by the tape suction roller 421, and then a certain length of tape e is wound and then cut, thereby realizing the picking and transferring of the tape e, without the need for a tape pulling mechanism to pull the tape and a tape suction plate to suck the tape, greatly saving the required space, and the structure is more compact, making the roll changing device more suitable for space-limited working conditions.

[0073] Please refer to Figure 4 , further, the tape receiving assembly 32 has a tape suction surface f for adsorbing the tape e. The tape feeding assembly 42 can be moved to the tape receiving assembly 32 under the driving action of the driving assembly 41, and the tape suction roller 421 is abutted on the tape suction surface f, so that the tape suction surface f adsorbs the tape e on the tape suction roller 421. The tape feeding assembly 42 can also drive the tape suction roller 421 to roll along the tape suction surface f under the driving action of the driving assembly 41, so that the tape e is laid flat on the tape suction surface f, until the tape e is completely separated from the tape suction roller 421, that is, the tape e is transferred to the tape suction surface f of the tape receiving assembly 32.

[0074] Please refer to Figure 5 , further, the tape feeding assembly 42 can also abut the tape suction roller 421 with the standby roll A1 on the unwinding mechanism 31, so that the tape e on the tape suction roller 421 is bonded with the starting end A3 of the tape on the standby roll A1, and the tape suction roller 421 is wound with the standby tape A2. The tape feeding assembly 42 can also use the tape suction roller 421 to pull the starting end A3 of the tape through the tape receiving passage g of the tape receiving assembly 32 and the waste tape collecting assembly 33, so that the standby tape A2 of the standby roll A1 passes through the tape receiving passage g of the tape receiving assembly 32 and is fixed on the waste tape collecting assembly 33.

[0075] It should be noted that the two side surfaces of the tape e are the tape adhesive surface and the non-tape adhesive surface. Therefore, the direction of the tape adhesive surface of the tape e wound on the tape suction roller 421 can be controlled by adjusting the rotation direction of the tape suction roller 421. That is, when the tape suction roller 421 is controlled to rotate in the first rotation direction (i.e. the counterclockwise direction in the embodiment shown in the figure), the tape e wound on the tape suction roller 421 has its tape adhesive surface located on the outside and not in contact with the roller surface of the tape suction roller 421, and the non-tape adhesive surface is located on the inside and in contact with the roller surface of the tape suction roller 421. When the tape suction roller 421 is controlled to rotate in the second rotation direction (which is opposite to the first rotation direction), the tape e wound on the tape suction roller 421 has its tape adhesive surface located on the inside and in contact with the roller surface of the tape suction roller 421, and the non-tape adhesive surface is located on the outside and not in contact with the roller surface of the tape suction roller 421. Figure 2

[0076] ​When the starting end A3 of the tape on the standby tape roll A1 needs to be adhered, the driving assembly 41 drives the tape passing assembly 42 to move to the tape supply mechanism 10, so that the tape starting end of the adhesive tape e is fixed by the adhesive roller 421. The adhesive roller 421 is controlled to rotate in the first rotation direction until a certain length of the adhesive tape e is wound on the adhesive roller 421. Then, the tape supply mechanism 10 is controlled to cut the adhesive tape e. Then, the driving assembly 41 drives the tape passing assembly 42 to move to the unwinding mechanism 31, so that the adhesive roller 421 is pressed against the starting end A3 of the tape on the standby tape roll A1. At this time, since the adhesive surface of the adhesive tape e on the adhesive roller 421 is located on the outer side, the adhesive tape e and the starting end A3 of the tape on the standby tape roll A1 are adhered to each other. Then, the adhesive roller 421 rotates around its axis, so that the standby tape A2 on the standby tape roll A1 is wound on the adhesive roller 421. Then, under the driving action of the driving assembly 41, the adhesive roller 421 pulls the standby tape A2 on the standby tape roll A1 through the tape connecting passage g of the tape connecting assembly 32 and the waste material collecting assembly 33 in sequence, and the waste material collecting assembly 33 fixes the passing standby tape A2. Finally, the adhesive roller 421 is controlled to rotate in the second rotation direction until the starting end A3 of the standby tape A2 and the adhesive tape e are completely separated from the adhesive roller 421.

[0077] When the adhesive tape e needs to be transferred to the adhesive surface f of the tape connecting assembly 32, the driving assembly 41 drives the tape passing assembly 42 to move to the tape supply mechanism 10, so that the starting end of the adhesive tape e is fixed by the adhesive roller 421. The adhesive roller 421 is controlled to rotate in the second rotation direction until a certain length of the adhesive tape e is wound on the adhesive roller 421. At this time, the adhesive surface of the adhesive tape e on the adhesive roller 421 is located on the inner side. Then, the tape supply mechanism 10 is controlled to cut the adhesive tape e. Then, the driving assembly 41 drives the tape passing assembly 42 to move to the tape connecting assembly 32, so that the adhesive roller 421 is pressed against the adhesive surface f. Then, under the driving action of the driving assembly 41, the adhesive roller 421 rolls along the adhesive surface f, and the rotation direction of the adhesive roller 421 is the first rotation direction, until the adhesive tape e is completely laid flat on the adhesive surface f and completely separated from the adhesive roller 421. At this time, the adhesive surface of the adhesive tape e faces away from the adhesive surface f, and the non-adhesive surface of the adhesive tape e faces toward the adhesive surface f and is adsorbed and fixed by the adhesive surface f, so as to be adhered to the downstream cut end of the working tape and the upstream cut end of the standby tape A2 in the subsequent process.

[0078] Please refer to Figures 11 to 14 In specific embodiments, the waste material collecting assembly 33 includes a first moving seat 334, a second rotation driving member 336, and a collecting roller 331. The second rotation driving member 336 is installed on the first moving seat 334 to move together with the first moving seat 334. The collecting roller 331 is installed on the first moving seat 334 and connected to the driving end of the second rotation driving member 336, so that the second rotation driving member 336 can drive the collecting roller 331 to rotate around its axis.

[0079] The take-up roller 331 has an insertion slot k. The first moving seat 334 can controllably drive the take-up roller 331 to move along its own axis so that the spare material strip A2, which follows the suction roller 421 to the waste collection assembly 33, enters the insertion slot k. After the spare material strip A2 enters the insertion slot k of the take-up roller 331, the second rotary drive 336 drives the take-up roller 331 to rotate, thereby causing the spare material strip A2 to be wound around the take-up roller 331. Optionally, the second rotary drive 336 can be a motor.

[0080] Thus, in actual use, firstly, the first moving seat 334 drives the receiving roller 331 to move along its own axis (i.e., as shown in the image). Figure 1 The material is moved inward along the paper surface direction as shown in the diagram to a stop position, thereby preventing the take-up roller 331 from interfering with the suction roller 421 when the suction roller 421 pulls the starting end A3 of the spare material strip A2. Then, the suction roller 421 pulls the starting end A3 of the spare material strip A2 on the spare material roll A1 through the receiving channel g of the receiving assembly 32 and the waste material collection assembly 33 in sequence. Then, the first moving seat 334 drives the take-up roller 331 to move along its own axial direction (i.e., as shown in the diagram). Figure 1 (As shown, it moves outward along the paper surface) to the winding position, so that the spare material strip A2 passing through the waste collection assembly 33 enters the insertion slot k of the take-up roller 331. Then, the glue suction roller 421 is controlled to rotate to unwind the starting end A3 of the spare material strip A2 and the adhesive tape e, until the glue suction roller 421 separates from the starting end A3 of the spare material strip A2 and the adhesive tape e. At the same time, the second rotary drive 336 drives the take-up roller 331 to rotate and wind the spare material strip A2 onto the take-up roller 331, until both the starting end A3 of the spare material strip A2 and the adhesive tape e are wound onto the take-up roller 331. It should be noted that the spare material strip A2 and the adhesive tape e wound on the take-up roller 331 are the waste roll A4.

[0081] Furthermore, the waste collection assembly 33 also includes a pressing unit 332, which includes a connecting seat 3321, a pressing block 3322, and a first elastic member 3323. The connecting seat 3321 is mounted on the mounting plate 70 or the guide member 337 and is spaced apart from the take-up roller 331. The pressing block 3322 is movably connected to the side of the connecting seat 3321 facing the take-up roller 331. The first elastic member 3323 abuts between the connecting seat 3321 and the pressing block 3322, so that the pressing block 3322 presses the waste roll A4 wound on the take-up roller 331 under the elastic force provided by the first elastic member 3323. In this way, the spare material strip A2 (i.e., waste roll A4) wound on the take-up roller 331 is pressed tightly by the pressing block 3322 onto the take-up roller 331, preventing the waste roll A4 on the take-up roller 331 from loosening or even falling off. Alternatively, the first elastic element 3323 may be a compression spring.

[0082] Further, the waste collecting assembly 33 further comprises a guide rod 3324, a matching plate 3326 and a limiting block 3325. The connecting seat 3321 is provided with a guide hole, and the guide rod 3324 is arranged in the guide hole. One end of the guide rod 3324, which is close to the collecting roller 331, is fixedly connected with the pressing block 3322, and the other end of the guide rod 3324, which is away from the collecting roller 331, is fixedly connected with the matching plate 3326. The limiting block 3325 is installed on the connecting seat 3321, and the matching plate 3326 has a movement tendency of abutting against the limiting block 3325 under the elastic force provided by the first elastic member 3323. In this way, when the waste roll A4 is not wound on the collecting roller 331, the matching plate 3326 abuts against the limiting block 3325 under the elastic force provided by the first elastic member 3323, so as to limit the pressing block 3322 by the limiting block 3325, thereby avoiding that the pressing block 3322 directly abuts against the collecting roller 331, and further avoiding that the collecting roller 331 is bent and deformed due to long-term stress. When the waste roll A4 is wound on the collecting roller 331, the pressing block 3322 abuts against the waste roll A4 on the collecting roller 331, and as the diameter of the waste roll A4 gradually increases, the pressing block 3322 gradually moves to the connecting seat 3321 against the elastic force of the first elastic member 3323, thereby driving the matching plate 3326 to gradually move away from the limiting block 3325.

[0083] Further, the position of the limiting block 3325 on the connecting seat 3321 is adjustable, so as to adjust the gap between the pressing block 3322 and the collecting roller 331 by adjusting the position of the limiting block 3325, thereby ensuring that when the waste roll A4 is not wound on the collecting roller 331, there is a certain gap between the pressing block 3322 and the collecting roller 331, and when the waste roll A4 is wound on the collecting roller 331, the pressing block 3322 abuts against the waste roll A4.

[0084] Optionally, the limiting block 3325 is provided with a waist-shaped hole 3327, and the waste collecting assembly 33 further comprises a locking bolt (not shown in the figure). The locking bolt is arranged in the waist-shaped hole 3327 of the limiting block 3325 and is threadedly connected with the connecting seat 3321, so as to lock and fix the limiting block 3325 on the connecting seat 3321. In this way, the position of the limiting block 3325 is adjustable by cooperation of the locking bolt and the waist-shaped hole 3327.

[0085] Specifically, the roll changing device further comprises a mounting plate 70, and the collecting roller 331 is rotatably and movably connected to the mounting plate 70 along the axis of the collecting roller 331. The waste collecting assembly 33 further comprises a moving driving member 335, which is installed between the first moving seat 334 and the mounting plate 70 and is used to drive the first moving seat 334 to move relative to the mounting plate 70 along the axis of the collecting roller 331, thereby driving the collecting roller 331 to move between the avoiding position and the winding position. Optionally, the moving driving member 335 can adopt a pneumatic cylinder.

[0086] Further, the scrap material collecting assembly 33 further comprises a guide 337 and a shaft sleeve 338, the shaft sleeve 338 is mounted on the mounting plate 70 through the guide 337, so that the shaft sleeve 338 can move along its own axis relative to the mounting plate 70. The material collecting roller 331 is sleeved inside the shaft sleeve 338 and can rotate relative to the shaft sleeve 338 around its own axis. One end of the material collecting roller 331 is drivingly connected with the second rotary driving member 336, and the other end of the material collecting roller 331 penetrates out of the shaft sleeve 338 and is used for winding the standby material belt A2 passing through. The insertion slot k is located at the part of the material collecting roller 331 penetrating out of the shaft sleeve 338. Optionally, the guide 337 can adopt a linear bearing.

[0087] Please refer to Figure 6 It should be noted that the unwinding mechanism 31 comprises two unwinding units, and the belt receiving assembly 32 comprises two belt receiving units. The two belt receiving units are spaced apart to form the above-mentioned belt receiving channel g. The two unwinding units are located upstream of the belt receiving channel g. Both of the two unwinding units can load a material roll (i.e. a working material roll or a standby material roll A1) and output a material belt (i.e. a working material belt or a standby material belt A2) to the belt receiving channel g. When the material roll loaded on one of the two unwinding units is a working material roll, the material belt output by the unwinding unit to the belt receiving channel g is a working material belt, and the working material belt continues to be conveyed downstream after passing through the belt receiving channel g. The material roll loaded on the other of the two unwinding units is a standby material roll A1, and the material belt of the standby material roll A1 has its starting end A3 pass through the belt receiving channel g and the material collecting roller 331 of the scrap material collecting assembly 33 under the traction of the suction roller 421, and then is fixed on the material collecting roller 331.

[0088] One of the two unwinding units and one of the two belt receiving units located on the same side form a group, which are respectively a first unwinding unit 31a and a first belt receiving unit 32a. The other of the two unwinding units and the other of the two belt receiving units located on the same side form another group, which are respectively a second unwinding unit 31b and a second belt receiving unit 32b.

[0089] It should be noted that the working material roll herein refers to a material roll that is outputting a material belt to the downstream, and the material belt output by the working material roll to the downstream is a working material belt. The standby material roll herein refers to a material roll that is not outputting a material belt to the downstream, and the material belt on the standby material roll is a standby material belt. For example, when the material roll on the first unwinding unit 31a is a working material roll, the first unwinding unit 31a drives the working material roll thereon to rotate, thereby conveying the working material belt to the downstream. The working material belt continues to be conveyed to the downstream after passing through the belt receiving channel g. At this time, the material roll on the second unwinding unit 32a is a standby material roll.

[0090] When the work roll on the first unwinding unit 31a is unwound, a roll change is needed. After the roll change is completed, the standby roll on the second unwinding unit 31a is switched to the work roll, and the work tape is continuously unwound to the downstream. At this time, the following material taking mechanism 43 transfers the standby roll to the first unwinding unit 31a, and prepares for the next roll change.

[0091] In order to save space, the distance between the first unwinding unit 31a and the second unwinding unit 31b is small, and the distance between the first tape connecting unit 32a and the second tape connecting unit 32b is also small. Therefore, when the suction roller 421 pulls the tape starting end A3 of the standby roll A1 on the first unwinding unit 31a to pass through the tape connecting passage g and reach the downstream of the material collecting roller 331, the second unwinding unit 31b and the second tape connecting unit 32b are likely to interfere with the suction roller 421. Similarly, when the suction roller 421 pulls the tape starting end A3 of the standby roll A1 on the second unwinding unit 31b to pass through the tape connecting passage g and reach the downstream of the material collecting roller 331, the first unwinding unit 31a and the first tape connecting unit 32a are also likely to interfere with the suction roller 421.

[0092] In order to solve the problem of interference with the suction roller 421, in some embodiments, the first unwinding unit 31a is configured to be controllably movable along the axial direction of the material collecting roller 331. The first tape connecting unit 32a is controllably connected or separated from the first unwinding unit 31a. When the first tape connecting unit 32a is connected to the first unwinding unit 31a, the first tape connecting unit 32a can move along the axial direction of the material collecting roller 331 together with the first unwinding unit 31a. The second unwinding unit 31a is also configured to be controllably movable along the axial direction of the material collecting roller 331. The second tape connecting unit 32b is controllably connected or separated from the second unwinding unit 31b. When the second tape connecting unit 32b is connected to the second unwinding unit 31b, the second tape connecting unit 32b can move along the axial direction of the material collecting roller 331 together with the second unwinding unit 31b. It should be noted that a linear driving component such as an electric cylinder or a lead screw module can be used to drive the first unwinding unit 31a to move along the axial direction of the material collecting roller 331, which is not limited herein. A linear driving component such as an electric cylinder or a lead screw module can be used to drive the second unwinding unit 31b to move along the axial direction of the material collecting roller 331, which is not limited herein.

[0093] Furthermore, the first tape-attaching unit 32a and the second tape-attaching unit 32b can be selectively connected to the first moving seat 334. When the first tape-attaching unit 32a is connected to the first moving seat 334, the second tape-attaching unit 32b is separated from the first moving seat 334, thereby enabling the take-up roller 331 and the first tape-attaching unit 32a to move synchronously along the axial direction of the take-up roller 331. When the second tape-attaching unit 32b is connected to the first moving seat 334, the first tape-attaching unit 32a is separated from the first moving seat 334, thereby enabling the take-up roller 331 and the second tape-attaching unit 32b to move synchronously along the axial direction of the take-up roller 331.

[0094] Thus, when the roll on the first unwinding unit 31a is the spare roll A1, the first tape-connecting unit 32a is connected to the first unwinding unit 31a. At this time, the first unwinding unit 31a is moved axially along the take-up roller 331 (i.e., along...). Figure 1 The first unwinding unit 31a moves outward perpendicular to the paper surface, thereby also causing the first tape-joining unit 32a to move axially along the take-up roller 331. This causes the first unwinding unit 31a and the second unwinding unit 31b to be misaligned axially along the take-up roller 331, and the first tape-joining unit 32a and the second tape-joining unit 32b to also be misaligned axially along the take-up roller 331. This ensures that during the process of the glue suction roller 421 pulling the starting end A3 of the spare tape A2 on the first unwinding unit 31a through the tape-joining channel g and reaching the downstream of the take-up roller 331, there will be no interference with the second unwinding unit 31b, the second tape-joining unit 32b, and the take-up roller 331. After the glue suction roller 421 pulls the starting end A3 of the spare tape A2 to the downstream of the take-up roller 331, the first moving seat 334 moves axially along the take-up roller 331 (i.e., along the direction perpendicular to the paper surface). Figure 1 The unwinding unit 31a, the first tape receiving unit 32a, and the take-up roller 331 move together along the axial direction of the take-up roller 331 to the winding position, so that the take-up roller 331 can fix and wind up the spare tape A2. Finally, the first motion seat 334 is connected to the first tape receiving unit 32a, so that the first unwinding unit 31a, the first tape receiving unit 32a and the take-up roller 331 move together along the axial direction of the take-up roller 331 to reset (i.e., along the axial direction of the take-up roller 331). Figure 1 (Move inwards in a direction perpendicular to the paper surface) so that the two unwinding units, two splicing units, and waste collection assembly can work together to complete the splicing.

[0095] When the roll on the second unwinding unit 31b is the spare roll A1, the second tape-connecting unit 32b is connected to the second unwinding unit 31b. At this time, the second unwinding unit 31b is moved axially along the take-up roller 331 (i.e., along...). Figure 1The first spooling unit 31a and the first splicing unit 32a are moved to the splicing position along the axial direction of the take-up roller 331, and the second spooling unit 31b and the second splicing unit 32b are moved to the splicing position along the axial direction of the take-up roller 331 at the same time, so that the spare tape A2 on the second spooling unit 31b is spliced to the tape A1 on the first spooling unit 31a by the suction roller 421. After the spare tape A2 is spliced to the tape A1, the first moving seat 334 is moved to the take-up position along the axial direction of the take-up roller 331, so that the take-up roller 331 is moved to the take-up position along the axial direction of the take-up roller 331, and the tape A1 is fixed and wound on the take-up roller 331. Finally, the first moving seat 334 is connected with the second splicing unit 32b, so that the second spooling unit 31b, the second splicing unit 32b and the take-up roller 331 are moved to the original position (i.e. moved to the original position along the axial direction of the take-up roller 331) along the axial direction of the take-up roller 331, so as to complete the splicing of the two spooling units, the two splicing units and the waste take-up assembly 33. Figure 1 The first spooling unit 31a and the first splicing unit 32a are moved to the splicing position along the axial direction of the take-up roller 331, and the second spooling unit 31b and the second splicing unit 32b are moved to the splicing position along the axial direction of the take-up roller 331 at the same time, so that the spare tape A2 on the second spooling unit 31b is spliced to the tape A1 on the first spooling unit 31a by the suction roller 421. After the spare tape A2 is spliced to the tape A1, the first moving seat 334 is moved to the take-up position along the axial direction of the take-up roller 331, so that the take-up roller 331 is moved to the take-up position along the axial direction of the take-up roller 331, and the tape A1 is fixed and wound on the take-up roller 331. Finally, the first moving seat 334 is connected with the second splicing unit 32b, so that the second spooling unit 31b, the second splicing unit 32b and the take-up roller 331 are moved to the original position (i.e. moved to the original position along the axial direction of the take-up roller 331) along the axial direction of the take-up roller 331, so as to complete the splicing of the two spooling units, the two splicing units and the waste take-up assembly 33.

[0096] Specifically, the splicing mechanism 30 further comprises a first clutch assembly 34, which comprises a clutch sliding seat 342 and a clutch driving member 341. The clutch sliding seat 342 is movably connected to the first moving seat 334. The clutch driving member 341 is installed on the first moving seat 334, and the driving end of the clutch driving member 341 is connected with the clutch sliding seat 342. The clutch driving member 341 can drive the clutch sliding seat 342 to move to a first position connected with the first splicing unit 32a and a second position connected with the second splicing unit 32b relative to the first moving seat 334.

[0097] It should be noted that in some embodiments, the clutch sliding seat 342 is provided with a matching groove or hole. When the clutch sliding seat 342 moves to the first position, part of the first splicing unit 32a is inserted into the matching groove or hole, so as to realize the connection between the first splicing unit 32a and the clutch sliding seat 342, so that the first moving seat 334 can drive the first splicing unit 32a to move along the axial direction of the take-up roller 331. When the clutch sliding seat 342 moves to the second position, part of the second splicing unit 32b is inserted into the matching groove or hole, so as to realize the connection between the second splicing unit 32b and the clutch sliding seat 342, so that the first moving seat 334 can drive the second splicing unit 32b to move along the axial direction of the take-up roller 331. Of course, in other embodiments, the clutch sliding seat 342 and the first splicing unit 32a or the second splicing unit 32b can also be connected in other ways, such as clamping, which is not limited herein.

[0098] Specifically, the tape receiving mechanism 30 further comprises a second clutch assembly (not shown) and a third clutch assembly 36. The second clutch assembly is arranged between the first unwinding unit 31a and the first tape receiving unit 32a, and is used to control the connection or disconnection between the first unwinding unit 31a and the first tape receiving unit 32a. The third clutch assembly 36 is arranged between the second unwinding unit 31b and the second tape receiving unit 32b, and is used to control the connection or disconnection between the second unwinding unit 31b and the second tape receiving unit 32b.

[0099] Further, the second clutch assembly comprises a first clamping part and a first connecting part, one of which is mounted on the first unwinding unit 31a, and the other of which is mounted on the first tape receiving unit 32a. The first clamping part can be controlled to clamp or release the first connecting part. When the first clamping part clamps the first connecting part, the first tape receiving unit 32a and the first unwinding unit 31a are connected as a whole through the first clamping part and the first connecting part, and can move synchronously along the axial direction of the material collecting roller 331. When the first clamping part releases the first connecting part, the first tape receiving unit 32a and the first unwinding unit 31a are disconnected, and cannot move together along the axial direction of the material collecting roller 331. It should be noted that the first clamping part can adopt a jaw structure, as long as it can clamp or release the first connecting part, which is not limited herein.

[0100] Further, the third clutch assembly 36 comprises a second clamping part 361 and a second connecting part 362, one of which is mounted on the second unwinding unit 31b, and the other of which is mounted on the second tape receiving unit 32b. The second clamping part 361 can be controlled to clamp or release the second connecting part 362. When the second clamping part 361 clamps the second connecting part 362, the second tape receiving unit 32b and the second unwinding unit 31b are connected as a whole through the second clamping part 361 and the second connecting part 362, and can move synchronously along the axial direction of the material collecting roller 331. When the second clamping part 361 releases the second connecting part 362, the second tape receiving unit 32b and the second unwinding unit 31b are disconnected, and cannot move together along the axial direction of the material collecting roller 331. It should be noted that the second clamping part 361 can adopt a jaw structure, as long as it can clamp or release the second connecting part 362, which is not limited herein.

[0101] It should be noted that the movement of the first tape receiving unit 32a along the axial direction of the material collecting roller 331 is not limited to the mode of driving the first tape receiving unit 32a by the first unwinding unit 31a. In other embodiments, a driving component can be arranged to drive the first tape receiving unit 32a to move along the axial direction of the material collecting roller 331.

[0102] Similarly, the second tape receiving unit 32b is not limited to be moved along the axis of the material receiving roller 331 by the second unwinding unit 31a. In other embodiments, a driving component can be provided to drive the second tape receiving unit 32b to move along the axis of the material receiving roller 331.

[0103] It should be further noted that the standby material roll A1 can be located on the first unwinding unit 31a or the second unwinding unit 31b. In order to avoid the standby material tape A2 interfering with the working material tape to be conveyed downstream, in some embodiments, the material receiving assembly 33 is provided with two material receiving rollers 331, i.e., a first material receiving roller and a second material receiving roller. The first material receiving roller is located on the same side as the first unwinding unit 31a and the first tape receiving unit 32a, and the second material receiving roller is located on the same side as the second unwinding unit 31b and the second tape receiving unit 32b. In this way, when the standby material roll A1 is located on the first unwinding unit 31a, the standby material tape A2 of the standby material roll A1 pulled by the suction roller 421 passes through the first unwinding unit 31a and the first tape receiving unit 32a in sequence and is wound onto the first material receiving roller. When the standby material roll A1 is located on the second unwinding unit 31b, the standby material tape A2 of the standby material roll A1 pulled by the suction roller 421 passes through the second unwinding unit 31b and the second tape receiving unit 32b in sequence and is wound onto the second material receiving roller.

[0104] It should be noted that in some embodiments, the two material receiving rollers 331 can be driven by two second rotary driving members 336 respectively, so as to rotate around their respective axes. Of course, in other embodiments, one second rotary driving member 336 can be used to synchronously drive the two material receiving rollers 331 to rotate. Specifically, the material receiving assembly 33 further comprises a driving wheel L1, a driven wheel L2 and a transmission belt L3. The driving wheel L1 and the driven wheel L2 are respectively mounted on the two material receiving rollers 331, and the transmission belt L3 is sleeved between the driving wheel L1 and the driven wheel L2. The driving end of the second rotary driving member 336 is connected with one of the material receiving rollers 331, so that when the one of the material receiving rollers 331 rotates under the driving action of the second rotary driving member 336, the other material receiving roller 331 can be synchronously rotated by the driving wheel L1, the transmission belt L3 and the driven wheel L2. In this way, the two material receiving rollers 331 share one second rotary driving member 336, which is conducive to reducing the cost of the device.

[0105] Please refer to Figures 6 to 8In some embodiments, the material feeding assembly 42 comprises a first mounting base 418, a first rotary driving member 422 and a first rotary base 423. The first mounting base 418 is mounted on the driving end of the driving assembly 41, so that the driving assembly 41 can drive the first mounting base 418 to move. The first rotary driving member 422 is mounted on the first mounting base 418, and the first rotary base 423 is mounted on the driving end of the first rotary driving member 422, so that the first rotary driving member 422 can drive the first rotary base 423 to rotate. The above-mentioned glue suction roller 421 is mounted on the first rotary base 423, so that the glue suction roller 421 can rotate with the first rotary base 423.

[0106] The driving assembly 41 is used to drive the first mounting base 418 to move along the first direction X1 and the second direction X2, or along the first direction X1, the second direction X2 and the third direction X3, and the first rotary driving member 422 is used to drive the first rotary base 423 to rotate around the axis of the glue suction roller 421. The first direction X1, the second direction X2 and the third direction X3 are perpendicular to each other, and the third direction X3 is consistent with the axial direction of the glue suction roller 421. In this way, by driving the first mounting base 418 to move along the first direction X1 and the second direction X2, or along the first direction X1, the second direction X2 and the third direction X3 by the driving assembly 41, the first mounting base 418 can accurately drive the glue suction roller 421 to pick up the adhesive tape e at the adhesive tape preparation mechanism 10, release the adhesive tape e onto the glue suction surface f at the adhesive tape receiving assembly 32, stick to the starting end A3 of the adhesive tape on the standby material roll A1 at the unwinding mechanism 31, and pull the standby adhesive tape A2 through the adhesive tape receiving assembly 32 and the waste material collecting assembly 33 in turn. By driving the glue suction roller 421 to rotate around its own axis by the first rotary driving member 422 (i.e. the glue suction roller 421 rotates in the first rotation direction or the second rotation direction), the adhesive tape e or the standby adhesive tape A2 can be wound or released.

[0107] Specifically Figure 1 In the embodiment shown, the first direction X1 is the left-right direction, the second direction X2 is the up-down direction, and the third direction X3 is the direction perpendicular to the paper. It should be noted that the third direction X3 is consistent with the axial direction of the glue suction roller 421 means that the third direction X3 is substantially parallel to the axial direction of the glue suction roller 421.

[0108] Specifically, the threading assembly 42 further comprises a first sliding seat 424 and a second sliding seat 425, which are both arranged on the first rotating seat 423. The glue roller 421 comprises a first suction half roller 4211 mounted on the first sliding seat 424 and a second suction half roller 4213 mounted on the second sliding seat 425. The surfaces of the first suction half roller 4211 and the second suction half roller 4213, which are away from each other, jointly form a roller surface for winding the adhesive tape e. The first sliding seat 424 and the second sliding seat 425 can drive the first suction half roller 4211 and the second suction half roller 4213 to move close to or away from each other in a controllable manner, so as to clamp or release the starting end of the adhesive tape e. In this way, when it is needed to pick up the adhesive tape e provided by the adhesive tape preparation mechanism 10, first, the first sliding seat 424 and the second sliding seat 425 drive the first suction half roller 4211 and the second suction half roller 4213 to move away from each other. The driving assembly 41 drives the threading assembly 42 to move to the adhesive tape preparation mechanism 10, so that the starting end of the adhesive tape e is inserted between the first suction half roller 4211 and the second suction half roller 4213. Then, the first sliding seat 424 and the second sliding seat 425 drive the first suction half roller 4211 and the second suction half roller 4213 to move close to each other until the starting end of the adhesive tape e between them is clamped. Then, the first rotating drive 422 drives the first suction half roller 4211 and the second suction half roller 4213 to rotate in the first rotation direction or the second rotation direction until a certain length of the adhesive tape e is wound on the first suction half roller 4211 and the second suction half roller 4213. Finally, the adhesive tape preparation mechanism 10 is controlled to cut the adhesive tape e, so as to realize that the glue roller 421 picks up a certain length of the adhesive tape e. It should be noted that, in the embodiment, the first sliding seat 424 and the second sliding seat 425 are both movable, and in other embodiments, only one of the first sliding seat 424 and the second sliding seat 425 is movable, and the other one is not movable, as long as it can realize that the first suction half roller 4211 and the second suction half roller 4213 clamp or release the starting end of the adhesive tape e, which is not limited herein. For the convenience of understanding, the first sliding seat 424 and the second sliding seat 425 are both movable in the description herein.

[0109] Further, the surfaces of the first suction half roller 4211 and the second suction half roller 4213, which are away from each other, are both suction surfaces h, which are used to adsorb the adhesive tape e wound on the suction surfaces h, so as to avoid that the adhesive tape e wound on the first suction half roller 4211 and the second suction half roller 4213 is loose or even falls off. Optionally, the suction surfaces h can realize the adsorption and fixation of the adhesive tape e in a vacuum adsorption manner. Specifically, a plurality of suction holes are arranged on the suction surfaces h, and each suction hole is in communication with an external negative pressure source, so that the external negative pressure source can form a negative pressure at each suction hole, and then the negative pressure is used to adsorb and fix the adhesive tape e on the suction surfaces h.

[0110] Further, the material feeding assembly 42 further comprises a first clamping driving member 426 and a second clamping driving member 427, which are both mounted on the first rotating base 423. The driving end of the first clamping driving member 426 is connected with the first sliding base 424, so that the first clamping driving member 426 can drive the first sliding base 424 to move close to or away from the second sliding base 425, thereby driving the first adsorption half roller 4211 to move close to or away from the second adsorption half roller 4213. The driving end of the second clamping driving member 427 is connected with the second sliding base 425, so that the second clamping driving member 427 can drive the second sliding base 425 to move close to or away from the first sliding base 424, thereby driving the second adsorption half roller 4213 to move close to or away from the first adsorption half roller 4211. Optionally, the first clamping driving member 426 and the second clamping driving member 427 can both be air cylinders.

[0111] Thus, when the glue absorbing roller 421 needs to clamp the adhesive tape e at the adhesive tape preparation mechanism 10, the first clamping driving member 426 drives the first adsorption half roller 4211 to move close to the second adsorption half roller 4213, while the second clamping driving member 427 also drives the second adsorption half roller 4213 to move close to the first adsorption half roller 4211, until the first adsorption half roller 4211 and the second adsorption half roller 4213 jointly clamp the adhesive tape e therebetween.

[0112] When the first adsorption half roller 4211 of the glue absorbing roller 421 abuts against the glue absorbing surface f of the adhesive tape receiving assembly 32, the adhesive tape e needs to be released, the second clamping driving member 427 drives the second adsorption half roller 4213 to move away from the first adsorption half roller 4211, thereby releasing the adhesive tape e. At this time, the first clamping driving member 426 does not drive the first adsorption half roller 4211 to move, thereby avoiding that the pressing force of the first adsorption half roller 4211 against the glue absorbing surface f is too large to crush the adhesive tape e.

[0113] When the second adsorption half roller 4213 of the glue absorbing roller 421 abuts against the glue absorbing surface f of the adhesive tape receiving assembly 32, the adhesive tape e needs to be released, the first clamping driving member 426 drives the first adsorption half roller 4211 to move away from the second adsorption half roller 4213, thereby releasing the adhesive tape e. At this time, the second clamping driving member 427 does not drive the second adsorption half roller 4213 to move, thereby avoiding that the pressing force of the second adsorption half roller 4213 against the glue absorbing surface f is too large to crush the adhesive tape e.

[0114] Further, the first rotating seat 423 is provided with a first sliding rail, the first sliding seat 424 and the second sliding seat 425 are arranged on the first sliding rail, so that the first sliding seat 424 can move along the first sliding rail under the driving action of the first clamping driving member 426, and the second sliding seat 425 can also move along the first sliding rail under the driving action of the second clamping driving member 427, so as to respectively drive the first adsorption half roller 4211 and the second adsorption half roller 4213 to move close to or away from each other. In this way, the movement of the first sliding seat 424 and the second sliding seat 425 is guided by the first sliding rail, which ensures that the clamping and loosening actions of the first adsorption half roller 4211 and the second adsorption half roller 4213 are more accurate and reliable.

[0115] In some embodiments, the driving assembly 41 comprises a driving unit 410, a third moving seat 416 and an elastic buffer 419. The third moving seat 416 is installed on the driving end of the driving unit 410, and the first mounting seat 418 is movably connected to the third moving seat 416, so that the driving unit 410 can drive the first mounting seat 418 to move through the third moving seat 416, and then drive the glue absorbing roller 421 to move together. The two ends of the elastic buffer 419 are connected with the first mounting seat 418 and the third moving seat 416 respectively, so that the elastic buffer 419 can buffer the impact borne by the glue absorbing roller 421. In this way, when the first mounting seat 418 drives the glue absorbing roller 421 to press against the glue absorbing surface f of the tape receiving assembly 32, the first mounting seat 418 can float relative to the third moving seat 416 under the pressing force to further compress the elastic buffer 419, so as to buffer the impact force between the glue absorbing roller 421 and the glue absorbing surface f, and avoid hard impact between the glue absorbing roller 421 and the glue absorbing surface f to crush the adhesive tape e.

[0116] Similarly, when the first mounting seat 418 drives the glue absorbing roller 421 to press against the standby roll A1, the first mounting seat 418 can float relative to the third moving seat 416 under the pressing force to further compress the elastic buffer 419, so as to buffer the impact force between the glue absorbing roller 421 and the standby roll A1, and avoid hard impact between the glue absorbing roller 421 and the standby roll A1 to crush the adhesive tape e or the standby roll A1.

[0117] It should be noted that the elastic buffer 419 can adopt a gas cylinder or a spring or other elastic device capable of generating a buffering force. In the embodiment in which the elastic buffer 419 adopts a gas cylinder, since the buffering force output by the gas cylinder can remain constant and does not increase with the increase of the compression amount, it can ensure that the pressing force between the glue absorbing roller 421 and the glue absorbing surface f or the standby roll A1 remains constant, thereby avoiding excessive or insufficient pressing force.

[0118] In specific embodiments, the driving unit 410 comprises a translation driving member 411 (see Figure 1), a first driving member 412, a first transfer seat 413, a second driving member 414, a second transfer seat 415 and a third driving member 417. The first driving member 412 is installed at the driving end of the translation driving member 411, so that the translation driving member 411 can drive the first driving member 412 to move along the first direction X1. The first transfer seat 413 is installed at the driving end of the first driving member 412, so that the first driving member 412 can drive the first transfer seat 413 to move along the third direction X3. The second driving member 414 is installed on the first transfer seat 413, so that the second driving member 414 can move along with the first transfer seat 413. The second transfer seat 415 is movably connected on the first transfer seat 413 along the second direction X2, and is connected with the driving end of the second driving member 414, so that the second driving member 414 can drive the second transfer seat 415 to move along the second direction X2 relative to the first transfer seat 413. The third driving member 417 is installed on the second transfer seat 415, so that the third driving member 417 can move along with the second transfer seat 415. The third transfer seat 416 is movably connected on the second transfer seat 415 along the third direction X3, and is connected with the driving end of the third driving member 417, so that the third driving member 417 can drive the third transfer seat 416 to move along the third direction X3 relative to the second transfer seat 415. The above-mentioned first mounting seat 418 is movably connected on the third transfer seat 416 along the second direction X2, so that the first mounting seat 418 can move along with the third transfer seat 416, thereby driving the glue roller 421 to move along with the third transfer seat 416.

[0119] Thus, by driving the glue roller 421 to move along the first direction X1 by the translation driving member 411, driving the glue roller 421 to move along the third direction X3 by the first driving member 412, driving the glue roller 421 to move along the second direction X2 by the second driving member 414, driving the glue roller 421 to move along the third direction X3 by the third driving member 417, and driving the glue roller 421 to rotate around its own axis by the first rotary driving member 422, the glue roller 421 can accurately complete the actions of transferring the adhesive tape e, sticking the starting end A3 of the adhesive tape on the standby roll A1 by the adhesive tape e, and pulling the standby adhesive tape A2 through the tape connecting assembly 32 and the waste collecting assembly 33 in sequence. It should be noted that the translation driving member 411, the first driving member 412, the second driving member 414 and the third driving member 417 can adopt a linear driving module such as a pneumatic cylinder, an electric cylinder or a synchronous belt driving mechanism, as long as it can accurately move the glue roller 421, which is not limited here.

[0120] Further, the first transfer seat 413 is provided with a second sliding rail which longitudinally extends along the second direction X2. The second transfer seat 415 is slidingly arranged on the second sliding rail, so that the second sliding rail guides the movement of the second transfer seat 415 along the second direction X2 relative to the first transfer seat 413.

[0121] Further, the second transfer seat 415 is provided with a third sliding rail extending longitudinally along the third direction X3. The third transfer seat 416 is slidingly arranged on the third sliding rail, so that the third sliding rail guides the movement of the third transfer seat 416 relative to the second transfer seat 415 along the third direction X3.

[0122] Further, the third transfer seat 416 is provided with a fourth sliding rail extending longitudinally along the second direction X2. The first mounting seat 418 is slidingly arranged on the fourth sliding rail, so that the fourth sliding rail guides the movement of the first mounting seat 418 relative to the third transfer seat 416 along the second direction X2.

[0123] Please refer again to Figure 2 and Figure 3 In the embodiment of the present application, the adhesive preparation mechanism 10 includes a mounting base plate 16, and an adhesive tape unwinding assembly 11 and a cutting assembly 12 both mounted on the mounting base plate 16. The adhesive tape unwinding assembly 11 is used to output adhesive tape e to the cutting assembly 12. The driving assembly 41 can drive the threading assembly 42 to move downstream of the cutting assembly 12, so that the adhesive absorbing roller 421 of the threading assembly 42 clamps and fixes the starting end of the adhesive tape e. After the adhesive absorbing roller 421 clamps and fixes the starting end of the adhesive tape e, the adhesive absorbing roller 421 rotates around its own axis, so as to wind the adhesive tape e on the adhesive absorbing roller 421. After a certain length of adhesive tape e is wound on the adhesive absorbing roller 421, the cutting assembly 12 cuts the passing adhesive tape e, so as to realize that the adhesive absorbing roller 421 picks up a certain length of adhesive tape e.

[0124] Specifically, in the embodiment, the adhesive preparation mechanism 10 further includes a first clamping assembly 13 and a second clamping assembly 14 both mounted on the mounting base plate 16. The first clamping assembly 13 is located on the upstream side of the cutting assembly 12, and is used to clamp or release the passing adhesive tape e. The second clamping assembly 14 is located on the downstream side of the cutting assembly 12, and is used to clamp or release the passing adhesive tape e. In this way, during the process that the adhesive absorbing roller 421 clamps and fixes the starting end of the adhesive tape e and winds the adhesive tape e, the first clamping assembly 13 and the second clamping assembly 14 both keep the state of releasing the adhesive tape e, so that the adhesive tape e can be conveyed downstream under the traction of the adhesive absorbing roller 421 and wound on the adhesive absorbing roller 421. When the adhesive absorbing roller 421 winds a certain length of adhesive tape e, the adhesive absorbing roller 421 stops rotating, and the first clamping assembly 13 and the second clamping assembly 14 each clamp the passing adhesive tape e. Then, the cutting assembly 12 cuts the passing adhesive tape e, so that the adhesive absorbing roller 421 can move together with the adhesive tape e wound thereon to the adhesive tape splicing assembly 32 or the spare roll A1 on the unwinding mechanism 31.

[0125] Specifically, the cutting assembly 12 comprises a cutting driver (not labeled in the figure) and a cutting knife (not labeled in the figure). The cutting driver is installed on the installation base plate 16, and the cutting knife is installed on the driving end of the cutting driver, so that the cutting driver can drive the cutting knife to perform a cutting action, and then cut the passing adhesive tape e by the cutting knife. Optionally, the cutting driver can be a pneumatic cylinder.

[0126] Specifically, the first clamping assembly 13 comprises a first clamping driver (not labeled in the figure) and two first clamping blocks (not labeled in the figure). The first clamping driver is installed on the installation base plate 16, and the two first clamping blocks are respectively installed on the two driving ends of the first clamping driver, and the two first clamping blocks are spaced apart to form a first clamping passage for the adhesive tape e to pass through. The first clamping driver is used to drive the two first clamping blocks to clamp or release the adhesive tape e therebetween. Optionally, the first clamping driver can be a jaw pneumatic cylinder.

[0127] Specifically, the second clamping assembly 14 comprises a second clamping driver (not labeled in the figure) and two second clamping blocks (not labeled in the figure). The second clamping driver is installed on the installation base plate 16, and the two second clamping blocks are respectively installed on the two driving ends of the second clamping driver, and the two second clamping blocks are spaced apart to form a second clamping passage for the adhesive tape e to pass through. The second clamping driver is used to drive the two second clamping blocks to clamp or release the adhesive tape e therebetween. Optionally, the second clamping driver can be a jaw pneumatic cylinder.

[0128] Further, the adhesive tape preparation mechanism 10 further comprises a buffer assembly 15 installed on the installation base plate 16. The buffer assembly 15 is located between the cutting assembly 12 and the adhesive tape unwinding assembly 11, and is used to buffer the passing adhesive tape e. In this way, the adhesive tape e is buffered by the buffer assembly 15, so that in the process of winding the adhesive tape e by the suction roller 421, the buffer assembly 15 releases the adhesive tape e (i.e. the amount of buffered adhesive tape e decreases), and the adhesive tape e released by the buffer assembly 15 is finally wound onto the suction roller 421, thereby avoiding the suction roller 421 directly pulling out the adhesive tape e from the adhesive tape unwinding assembly 11 when winding the adhesive tape e, and further avoiding the adhesive tape e being pulled off due to excessive tension.

[0129] Specifically, the buffer assembly 15 comprises a fixed roller 151 and a movable roller 152 arranged on the mounting substrate 16. The fixed roller 151 is fixed relative to the mounting substrate 16, and the movable roller 152 is capable of moving towards or away from the fixed roller 151 under an external force. In this way, when the adhesive roller 421 winds the adhesive tape e, the adhesive tape e drives the movable roller 152 to move towards the fixed roller 151, so that the length of the adhesive tape e buffered between the movable roller 152 and the fixed roller 151 decreases. When the adhesive roller 421 stops winding the adhesive tape e, the movable roller 152 moves away from the fixed roller 151 to reset, so that the length of the adhesive tape e buffered between the movable roller 152 and the fixed roller 151 increases.

[0130] Further, the buffer assembly 15 further comprises a movable block 153 and a buffer driving member 154. The movable block 153 is movably connected to the mounting substrate 16, and the movable roller 152 is mounted on the movable block 153, so that the movable roller 152 is capable of moving relative to the mounting substrate 16 together with the movable block 153, thereby moving towards or away from the fixed roller 151. The buffer driving member 154 is mounted on the mounting substrate 16, and the buffer driving member 154 is used to provide a driving force for driving the movable block 152 to move away from the fixed roller 151. In this way, when the adhesive roller 421 winds the adhesive tape e, the adhesive tape e drives the movable block 153 and the movable roller 152 to move towards the fixed roller 151, so that the length of the adhesive tape e buffered between the movable roller 152 and the fixed roller 151 decreases. When the adhesive roller 421 stops winding the adhesive tape e, the movable block 153 drives the movable roller 152 to move away from the fixed roller 151 to reset under the driving action of the buffer driving member 154, so that the length of the adhesive tape e buffered between the movable roller 152 and the fixed roller 151 increases. Optionally, the buffer driving member 154 can adopt a pneumatic cylinder.

[0131] Further, the mounting substrate 16 is provided with a fifth slide rail (not labeled in the figure), and the movable block 153 is slidably arranged on the fifth slide rail, so that the fifth slide rail guides the movement of the movable block 153 relative to the mounting substrate 16.

[0132] In the embodiments of the present application, the roll changing device further comprises a standby roll providing mechanism 20 and a roll taking mechanism 43. The standby roll providing mechanism 20 is configured to provide a standby roll Al. The roll taking mechanism 43 is mounted on a driving end of a driving assembly 41, and the driving assembly 41 is further configured to drive the roll taking mechanism 43 to move between the standby roll providing mechanism 20 and the unwinding mechanism 31. When the driving assembly 41 drives the roll taking mechanism 43 to move to the standby roll providing mechanism 20, the roll taking mechanism 43 can receive the standby roll Al provided by the standby roll providing mechanism 20. When the driving assembly 41 drives the roll taking mechanism 43 to move to the unwinding mechanism 31, the roll taking mechanism 43 can transfer the standby roll Al thereon to the unwinding mechanism 31. That is, the roll taking mechanism 43 is used to transfer the standby roll Al provided by the standby roll providing mechanism 20 to the unwinding mechanism 31 (i.e., the first unwinding unit 31a or the second unwinding unit 31b).

[0133] Please refer to Figures 15 to 17 and Figure 20 In the embodiments of the present application, the standby roll providing mechanism 20 comprises a support seat 21, a storage shaft 22 and a roll pushing assembly 23. The storage shaft 22 has an installation end al and an access end a2 at two axial ends thereof. The installation end al of the storage shaft 22 is mounted on the support seat 21, and the storage shaft 22 is configured to axially mount at least one standby roll Al thereon. The roll taking mechanism 43 has a taking shaft 431 (see Figure 18 ), and the driving assembly 41 can drive the roll taking mechanism 43 to move to the standby roll providing mechanism 20, so that the taking shaft 431 of the roll taking mechanism 43 is axially connected with the access end a2 of the storage shaft 22 of the standby roll providing mechanism 20. The roll pushing assembly 23 is mounted on the support seat 21 and is configured to push the standby rolls Al on the storage shaft 22 to move through the access end a2 of the storage shaft 22 and onto the taking shaft 431. Thus, in actual use, first, the driving assembly 41 drives the roll taking mechanism 43 to move to the standby roll providing mechanism 20, so that the taking shaft 431 of the roll taking mechanism 43 is axially connected with the access end a2 of the storage shaft 22 of the standby roll providing mechanism 20. Then, the roll pushing assembly 23 pushes the standby rolls Al on the storage shaft 22 to move towards the access end a2 of the storage shaft 22, until one of the standby rolls Al closest to the access end a2 of the storage shaft 22 moves through the access end a2 and onto the taking shaft 431. Then, the driving assembly 41 drives the roll taking mechanism 43 to move to the unwinding mechanism 31, so as to transfer the standby roll Al on the taking shaft 431 to the unwinding mechanism 31.

[0134] In some embodiments, the pushing assembly 23 comprises a pushing driving member 231, an extension unit 233 and a pushing block 232. The pushing driving member 231 is mounted on the support base 21, and the pushing block 232 is arranged on the storage shaft 22. The extension unit 233 is connected between the pushing driving member 231 and the pushing block 232. The pushing driving member 231 is configured to drive the extension unit 233 to extend or retract, so as to drive the pushing block 232 to move along the storage shaft 22, thereby pushing each standby roll A1 on the storage shaft 22 to move towards the feeding and discharging end a2 of the storage shaft 22.

[0135] Further, the extension unit 233 comprises a first moving seat 2331, a linkage extension frame 2336, a second moving seat 2333 and a second mounting seat 2335. The first moving seat 2331 is mounted on a driving end of the pushing driving member 231, and the pushing driving member 231 is configured to drive the first moving seat 2331 to move in a first direction X1. The second moving seat 2333 is movably connected to the second mounting seat 2335, and the pushing block 232 is mounted on the second moving seat 2333. The linkage extension frame 2336 is hingedly connected between the first moving seat 2331 and the second moving seat 2333, and is configured to convert the movement of the first moving seat 2331 in the first direction X1 into the movement of the pushing block 232 in a third direction X3. The third direction X3 is consistent with the axial direction of the storage shaft 22. In this way, when the pushing is needed, the pushing driving member 231 drives the first moving seat 2331 to move in the first direction X1, so as to drive the linkage extension frame 2336 to extend in the axial direction of the storage shaft 22, thereby driving the second mounting seat 2335 and the pushing block 232 to move in the axial direction of the storage shaft 22, so as to achieve the movement of each standby roll A1 on the storage shaft 22 towards the feeding and discharging end a2 of the storage shaft 22.

[0136] It should be noted that the linkage extension frame 2336 is used for transmission, which is conducive to converting the small stroke output by the pushing driving member 231 into the large stroke of the pushing block 232. On the one hand, it is conducive to reducing the size of the pushing driving member 231 and reducing the cost of the equipment. On the other hand, it makes the structure more compact, reduces the space required, especially reduces the space occupation in the axial direction of the storage shaft 22, and improves the space utilization.

[0137] Specifically, the linkage extension frame 2336 comprises a plurality of first linkages b1 arranged in parallel and spaced apart, and a plurality of second linkages b2 arranged in parallel and spaced apart. Each first linkage b1 and each second linkage b2 are arranged in cross one by one. Each first linkage b1 and the corresponding second linkage b2 are hingedly connected at the cross, and the end of each first linkage b1 and the end of the adjacent second linkage b2 are hingedly connected.

[0138] The telescopic unit 233 further comprises a first fixed seat 2332 and a second fixed seat 2334. The first fixed seat 2332 is installed on the support seat 21 and is spaced apart from the first moving seat 2331 along the first direction X1. The second fixed seat 2334 is installed on the second mounting seat 2335 and is spaced apart from the second moving seat 2333 along the first direction X1. At one end of the connecting rod telescopic frame 2336 close to the first moving seat 2331, one of the end portions of the first connecting rod b1 and the second connecting rod b2 is hinged to the first moving seat 2331, and the other is hinged to the first fixed seat 2332. At one end of the connecting rod telescopic frame 2336 close to the second moving seat 2333, one of the end portions of the first connecting rod b1 and the second connecting rod b2 is hinged to the second moving seat 2333, and the other is hinged to the second fixed seat 2334.

[0139] In this way, when the pushing driving member 231 drives the first moving seat 2331 to move close to the first fixed seat 2332, the intersection angle θ of each group of intersecting first connecting rods b1 and second connecting rods b2 gradually decreases, so that the connecting rod telescopic frame 2336 is elongated along the axial direction of the storage shaft 22, thereby driving the second mounting seat 2335 and the pushing block 232 to move along the axial direction of the storage shaft 22 towards the inlet / outlet end a2. The connecting rod telescopic frame 2336 drives the second moving seat 2333 to gradually move close to the second fixed seat 2334 during the elongation.

[0140] When the pushing driving member 231 drives the first moving seat 2331 to move away from the first fixed seat 2332, the intersection angle θ of each group of intersecting first connecting rods b1 and second connecting rods b2 gradually increases, so that the connecting rod telescopic frame 2336 is contracted along the axial direction of the storage shaft 22, thereby driving the second mounting seat 2335 and the pushing block 232 to move along the axial direction of the storage shaft 22 towards the mounting end a1. The connecting rod telescopic frame 2336 drives the second moving seat 2333 to gradually move away from the second fixed seat 2334 during the contraction.

[0141] In specific embodiments, the pushing assembly 23 further comprises a first support roller 234 rollably connected to the pushing block 232. The pushing block 232 is supported on the storage shaft 22 through the first support roller 234, so that when the connecting rod telescopic frame 2336 drives the pushing block 232 to move along the axial direction of the storage shaft 22, the first support roller 234 rolls on the storage shaft 22, which is conducive to reducing the pushing force required to push each standby roll A1 along the axial direction of the storage shaft 22, and reducing the difficulty of pushing.

[0142] It should be noted that the number of the first supporting rollers 234 can be one, two or more. When the first supporting rollers 234 are one, the pushing block 232 is supported on the storage shaft 22 by the one first supporting roller 234. When the first supporting rollers 234 are more than one, the pushing block 232 is supported on the storage shaft 22 by the first supporting rollers 234 together. The number of the first supporting rollers 234 can be set according to the size of the storage shaft 22, as long as the friction generated by the pushing block 232 moving along the axial direction of the storage shaft 22 can be reduced, which is not limited herein.

[0143] Specifically, the material preparation mechanism 20 further comprises a plurality of second supporting rollers (not labeled in the figure) rollably connected to the storage shaft 22. The plurality of second supporting rollers are arranged along the axial direction of the storage shaft 22, and the standby material roll A1 is supported on the storage shaft 22 by the corresponding second supporting roller. In this way, when the pushing block 232 pushes each standby material roll A1, each standby material roll A1 moves along the axial direction of the storage shaft 22 under the rolling action of the corresponding second supporting roller, greatly reducing the pushing force required to push each standby material roll A1 to move along the axial direction of the storage shaft 22, further reducing the difficulty of pushing.

[0144] Please refer to Figure 18 , Figure 19 and Figure 21 In the embodiment of the present application, the first unwinding unit 31a and the second unwinding unit 31b of the unwinding mechanism 31 both have an unwinding shaft 311 for loading the standby material roll A1. The taking mechanism 43 comprises the taking shaft 431, the bearing seat 432 and the feeding unit 435. The bearing seat 432 is mounted on the driving end of the translation driving member 411 of the driving assembly 41, so that the translation driving member 411 of the driving assembly 41 can drive the bearing seat 432 to move along the first direction X1. The taking shaft 431 and the feeding unit 435 are both mounted on the bearing seat 432, so that the taking shaft 431 and the feeding unit 435 can move together with the bearing seat 432. Under the driving action of the translation driving member 411, the bearing seat 432 can drive the taking shaft 431 to move along the first direction X1 to axially butt with the storage shaft 22, so that the pushing assembly 23 can push the standby material roll A1 on the storage shaft 22 to the taking shaft 431. Under the driving action of the translation driving member 411, the bearing seat 432 can also drive the taking shaft 431 to move to axially butt with the unwinding shaft 311 of the first unwinding unit 31a or the second unwinding unit 31b. At this time, the feeding unit 435 can be controlled to push the standby material roll A1 on the taking shaft 431 to the unwinding shaft 311 along the axial direction, thereby realizing the transfer of the standby material roll A1 from the storage shaft 22 to the unwinding shaft 311.

[0145] In some embodiments, the taking mechanism 43 further comprises a third mounting base 433 and a fourth driving member 434. The third mounting base 433 is movably connected to the bearing base 432 along a third direction X3. The fourth driving member 434 is mounted on the bearing base 432, and a driving end of the fourth driving member 434 is connected with the third mounting base 433, so that the fourth driving member 434 can drive the third mounting base 433 to move along the third direction X3 relative to the bearing base 432. The taking shaft 431 is mounted on the third mounting base 433, so that the taking shaft 431 can move along with the third mounting base 433. The axial direction of the taking shaft 431 is consistent with the third direction X3.

[0146] The translation driving member 411 of the driving assembly 41 is configured to drive the bearing base 432 to move along the first direction X1, thereby driving the taking shaft 431 to move along the first direction X1, so that the taking shaft 431 moves along the first direction X1 to be opposite to the storage shaft 22 or the unwinding shaft 311 in the third direction X3. The fourth driving member 434 is configured to drive the third mounting base 433 to move along the third direction X3, thereby driving the taking shaft 431 to move along the third direction X3, so that the taking shaft 431 moves along the third direction X3 to be axially connected with or separated from the storage shaft 22 or the unwinding shaft 311.

[0147] It should be noted that the material roll (i.e., the working material roll or the standby material roll A1) comprises a material cylinder A5 and a material belt wound on the material cylinder A5. After the standby material roll A1 on the unwinding shaft 311 of the unwinding mechanism 31 is switched to the working material roll, the unwinding shaft 311 of the unwinding mechanism 31 drives the working material roll to rotate to unwind the working material belt downstream. When the working material roll on the unwinding shaft 311 is unwound, the splicing assembly 32 cuts the working material belt and the standby material roll A2. The unwinding shaft 311 of the unwinding mechanism 31 drives the material cylinder A5 on the unwinding shaft 311 to rotate in the opposite direction until the upstream cut end of the working material belt is wound on the material cylinder A5. At this time, the material cylinder A5 on the unwinding shaft 311 needs to be removed from the unwinding shaft 311 and transferred to a designated position.

[0148] In order to remove the material cylinder A5 on the unwinding shaft 311, in some embodiments, the translation driving member 411 of the driving assembly 41 can drive the bearing base 432 to move along the first direction X1 to the unwinding shaft 311, so that the taking shaft 431 is opposite to the unwinding shaft 311 of the first unwinding unit 31a or the second unwinding unit 31b in the third direction X3. The fourth driving member 434 can drive the third mounting base 433 to move along the third direction X3, thereby driving the taking shaft 431 to axially connect with the unwinding shaft 311. The feeding unit 435 can be controlled to clamp the material cylinder A5 on the unwinding shaft 311 and drive the material cylinder A5 to move axially to the taking shaft 431, thereby transferring the material cylinder A5 from the unwinding shaft 311 to the taking shaft 431.

[0149] It should be noted that in the embodiment, the feeding unit 435 is used to push the standby roll A1 on the taking shaft 431 to the unwinding shaft 311 along the third direction X3, and the feeding unit 435 is used to clamp the material cylinder A5 on the unwinding shaft 311 and drive the material cylinder A5 to move to the taking shaft 431 along the third direction X3. Compared with the scheme of pushing the material cylinder A5 on the unwinding shaft 311 to the taking shaft 431, the mode of clamping the material cylinder A5 by the feeding unit 435 in the embodiment can reduce the stroke of the feeding unit 435, thereby facilitating the saving of space, especially the saving of space in the third direction X3.

[0150] It should be noted that the material cylinder A5 on the unwinding shaft 311 is not limited to being transferred to the taking shaft 431 by the feeding unit 435, and in other embodiments, after the feeding unit 435 clamps the material cylinder A5 on the unwinding shaft 311 and drives the material cylinder A5 to axially separate from the unwinding shaft 311, the material cylinder A5 is not sleeved on the taking shaft 431, but is clamped and fixed by the feeding unit 435. For the sake of understanding, the embodiment in which the feeding unit 435 transfers the material cylinder A5 on the unwinding shaft 311 to the taking shaft 431 is taken as an example for description.

[0151] Specifically, in the embodiment, the feeding unit 435 includes a fifth driving member 4351, a fourth mounting seat 4352, and a clamping portion 4353. The fifth driving member 4351 is mounted on the bearing seat 432, so that the fifth driving member 4351 can move together with the bearing seat 432. The fourth mounting seat 4352 is mounted on the driving end of the fifth driving member 4351, and the fifth driving member 4351 is used to drive the fourth mounting seat 4352 to move along the third direction X3. The clamping portion 4353 is mounted on the fourth mounting seat 4352, so that the clamping portion 4353 can move together with the fourth mounting seat 4352. It should be noted that the fifth driving member 4351 can adopt a linear driving module such as an electric cylinder or an air cylinder, which is not limited here.

[0152] In this way, when it is needed to push the standby roll A1 on the taking shaft 431 to the unwinding shaft 311, the clamping portion 4353 is located at the end of the standby roll A1 away from the unwinding shaft 311, the fifth driving member 4351 drives the fourth mounting seat 4352 to move along the third direction X3, thereby driving the clamping portion 4353 to push the standby roll A1 on the taking shaft 431 to move to the unwinding shaft 311 along the third direction X3, until the standby roll A1 is pushed to the unwinding shaft 311.

[0153] When it is needed to push the reel A5 on the unwinding shaft 311 to the taking shaft 431, the fifth driving member 4351 drives the fourth mounting base 4352 to move along the third direction X3 towards the unwinding shaft 311, so as to drive the clamping part 4353 to move along the third direction X3 to the reel A5 on the unwinding shaft 311. Then, the clamping part 4353 clamps the reel A5 on the unwinding shaft 311. Then, the fifth driving member 4351 drives the fourth mounting base 4352 to move along the third direction X3 towards the taking shaft 431, so as to drive the clamping part 4353 to move along the third direction X3 to the taking shaft 431, and since the clamping part 4353 clamps the reel A5, the reel A5 also moves from the unwinding shaft 311 to the taking shaft 431 along with the clamping part 4353.

[0154] Specifically, the clamping part 4353 comprises a clamping jaw driving member c1 and two clamping jaws c2. The clamping jaw driving member c1 is mounted on the fourth mounting base 4352, so that the clamping jaw driving member c1 can move along with the fourth mounting base 4352. The two clamping jaws c2 are respectively mounted on two driving ends of the clamping jaw driving member c1, and the two clamping jaws c2 are spaced apart to form a clamping space for the taking shaft 431 or the unwinding shaft 311 to pass through. The clamping jaw driving member c1 is used to drive the two clamping jaws c2 to clamp or release the reel A5 on the unwinding shaft 311. Optionally, the clamping jaw driving member c1 can be a clamping jaw cylinder.

[0155] Thus, when it is needed to push the standby reel A1 on the taking shaft 431 to the unwinding shaft 311, the two clamping jaws c2 are located at the end of the standby reel A1 away from the unwinding shaft 311, and the clamping jaw driving member c1 drives the two clamping jaws c2 to move towards each other, so that the two clamping jaws c2 can abut against the end of the standby reel A1. Then, the fifth driving member 4351 drives the fourth mounting base 4352 to move along the third direction X3 towards the unwinding shaft 311, so as to drive the two clamping jaws c2 to push the standby reel A1 on the taking shaft 431 to move towards the unwinding shaft 311 along the third direction X3, until the standby reel A1 is pushed to the unwinding shaft 311.

[0156] When it is needed to push the cartridge A5 on the unwinding shaft 311 to the take-up shaft 431, the jaw driving member c1 drives the two jaws c2 to move away from each other, so that the clamping space between the two jaws c2 is wide enough for the cartridge A5 on the unwinding shaft 311 to enter. Then, the fifth driving member 4351 drives the fourth mounting base 4352 to move along the third direction X3 to approach the unwinding shaft 311, thereby driving the two jaws c2 to move along the third direction X3 to the cartridge A5 on the unwinding shaft 311. At this time, the cartridge A5 on the unwinding shaft 311 is located between the two jaws c2. Then, the jaw driving member c1 controls the two jaws c2 to move close to each other until the cartridge A5 on the unwinding shaft 311 is clamped. Then, the fifth driving member 4351 drives the fourth mounting base 4352 to move along the third direction X3 to approach the take-up shaft 431, thereby driving the two jaws c2 to move along the third direction X3 to the take-up shaft 431, and since the two jaws c2 clamp the cartridge A5, the cartridge A5 also moves from the unwinding shaft 311 to the take-up shaft 431 along with the two jaws c2.

[0157] Please refer to Figure 1 , Figure 23 and Figure 24 In the embodiment of the present application, the roll changing device further comprises a discharging mechanism 60, which comprises a guide member 61 and a storage member 62. The longitudinal two ends of the guide member 61 are respectively an inlet end d1 and an abutment end d2. The guide member 61 is connected to the storage member 62 through the abutment end d2. Under the driving action of the translation driving member 411 of the driving assembly 41, the carrier seat 432 can drive the take-up shaft 431 to move to the inlet end d1. The feeding unit 435 can be controlled to push the cartridge A5 on the take-up shaft 431 axially away from the take-up shaft 431 and fall into the inlet end d1 of the guide member 61. The guide member 61 is configured to guide the cartridge A5 at the inlet end d1 to roll towards the abutment end d2 and reach the storage member 62. In this way, after the cartridge A5 is transferred from the unwinding shaft 311 to the take-up shaft 431, first, the translation driving member 411 drives the carrier seat 432 to move along the first direction X1 to the guide member 61, until the take-up shaft 431 reaches above the inlet end d1 of the guide member 61. Then, the fifth driving member 4351 drives the fourth mounting base 4352 to move along the third direction X3, thereby driving the two jaws c2 to push the cartridge A5 away from the take-up shaft 431 along the third direction X3, so that the cartridge A5 falls into the inlet end d1 of the guide member 61. The cartridge A5 falling into the inlet end d1 of the guide member 61 rolls along the guide member 61 towards the abutment end d2 until the cartridge A5 reaches the storage member 62 for storage.

[0158] In some embodiments, the guide 61 has a guide groove 612 extending longitudinally from the feeding end d1 to the abutting end d2. The guide groove 612 is configured to receive the cartridge A5 and guide the cartridge A5 to roll from the feeding end d1 to the abutting end d2. In this way, the cartridge A5 is received and guided into the storage member 62 by the guide groove 612, effectively reducing the risk of the cartridge A5 falling off the guide 61.

[0159] Further, the storage member 62 has a storage groove 622 configured to receive the cartridge A5. The unloading mechanism 60 further comprises a seventh driving member 641 and a push block 642. The push block 642 is mounted on the driving end of the seventh driving member 641 and located at one end of the storage member 62 close to the guide 61. Under the driving action of the seventh driving member 641, the push block 642 can push the cartridge A5 in the storage groove 622 to move away from the guide 61. In this way, when the cartridge A5 falls from the guide groove 612 on the guide 61 into the storage groove 622 of the storage member 62, the seventh driving member 641 drives the push block 642 to move along the storage groove 622, thereby pushing the cartridge A5 in the storage groove 622 away from the guide 61. When the storage groove 622 is full of cartridges A5, the cartridges A5 in the storage groove 622 can be transferred manually or by a transfer device. Alternatively, the seventh driving member 641 can be a pneumatic cylinder.

[0160] It should be noted that, in order to shorten the stroke of the taking mechanism 43, in some embodiments, the unloading mechanism 60 is arranged as close to the standby mechanism 20 as possible, so that the position of the taking shaft 431 of the taking mechanism 43 to unload the cartridge A5 at the unloading mechanism 60 is close to or the same as the position of the taking shaft 431 of the taking mechanism 43 to transfer the standby cartridge A1 at the standby mechanism 20, greatly shortening the stroke of the taking mechanism 43, making the structure of the roll changing device more compact, and improving the space utilization.

[0161] Due to the close distance between the unloading mechanism 60 and the standby mechanism 20, the feeding end d1 of the guide 61 is likely to interfere with the taking mechanism 43 when the taking mechanism 43 moves to the standby mechanism 20 to transfer the standby cartridge A2. In order to avoid the interference between the feeding end d1 of the guide 61 and the taking mechanism 43, in some embodiments, the guide 61 is configured to rotate about the abutting end d2 thereof to a receiving position and an avoiding position. When the guide 61 rotates to the receiving position, the feeding end d1 can receive the cartridge A5 pushed away from the taking shaft 431 by the feeding unit 435. When the guide 61 rotates to the avoiding position, the feeding end d1 allows the taking shaft 431 of the taking mechanism 43 to be axially connected with the storage shaft 22, thereby avoiding the interference between the guide 61 and the taking shaft 431 of the taking mechanism 43.

[0162] Further, the unloading mechanism 60 further comprises a fifth mounting base 65 and a sixth driving member 63. The storage member 62 is fixedly connected to the fifth mounting base 65. The connecting end d2 of the guide member 61 is rotatably connected to the fifth mounting base 65. The sixth driving member 63 comprises a driving member body 631 and a telescopic end 632 which can be controlled to extend or retract relative to the driving member body 631. The driving member body 631 is hingedly mounted on the fifth mounting base 65, and the telescopic end 632 is hinged to the guide member 61, so that the guide member 61 is driven to rotate between the material collecting position and the avoiding position by the extension or retraction of the telescopic end 632 relative to the driving member body 631. Alternatively, the sixth driving member 63 can be a pneumatic cylinder.

[0163] Alternatively, when the telescopic end 632 extends relative to the driving member body 631, the guide member 61 can be driven to rotate to the avoiding position, so that the material taking shaft 431 of the material taking mechanism 43 can be smoothly transferred at the standby material mechanism 20. When the telescopic end 632 retracts relative to the driving member body 631, the guide member 61 can be driven to rotate to the material collecting position, so that the material cylinder A5 on the material taking shaft 431 of the material taking mechanism 43 can be smoothly dropped into the material inlet end d1 of the guide member 61.

[0164] Please refer to Figure 1 、 Figure 7 、 Figure 9 and Figure 10 In the embodiment of the present application, the roll changing device further comprises a waste material box 50 (see Figure 10 ) for accommodating the waste material roll A4 (see Figure 1 ) and a waste material taking mechanism 44 mounted on the driving end of the driving assembly 41. The driving assembly 41 is also used to drive the waste material taking mechanism 44 to move to the material collecting roller 331 of the waste material collecting assembly 33 and the waste material box 50. When the driving assembly 41 drives the waste material taking mechanism 44 to move to the material collecting roller 331 of the waste material collecting assembly 33, the waste material taking mechanism 44 can take away the waste material roll A4 on the material collecting roller 331 of the waste material collecting assembly 33. When the driving assembly 41 drives the waste material taking mechanism 44 to move to the waste material box 50, the waste material taking mechanism 44 can release the waste material roll A4 into the waste material box 50. It should be noted that the driving assembly 41 is not the only way to drive the waste material taking mechanism 44 to move. In other embodiments, a driving component can be separately configured for the waste material taking mechanism 44 to drive the waste material taking mechanism 44 to move, as long as the waste material roll A4 can be transferred.

[0165] Specifically, the waste material taking mechanism 44 is mounted on the second material transfer seat 415 of the driving assembly 41, so that the waste material taking mechanism 44 can move along with the second material transfer seat 415 in the first direction X1 and the second direction X2, ensuring that the waste material taking mechanism 44 can accurately move to the material collecting roller 331 of the waste material collecting assembly 33 or the waste material box 50.

[0166] In an embodiment, the waste material taking mechanism 44 includes a second moving seat 443, a first clamping block 4453, and a second clamping block 4455. The second moving seat 443 is mounted on the second moving seat 415 to move with the second moving seat 415. The first clamping block 4453 and the second clamping block 4455 are arranged on the second moving seat 443 to move with the second moving seat 443. The first clamping block 4453 and the second clamping block 4455 are spaced apart to form a receiving space j for the receiving roller 331 to enter. The first clamping block 4453 and the second clamping block 4455 are configured to be controllably close to or away from each other to clamp or release the waste roll A4. The first clamping block 4453 and the second clamping block 4455 are each provided with a supporting portion 4459 and a pushing portion 4457 on the side facing each other. The second moving seat 443 is configured to be controllably moved along the axial direction of the receiving roller 331 to drive each pushing portion 4457 to push the waste roll A4 on the receiving roller 331 to move axially and away from the receiving roller 331. Each supporting portion 4459 is used to support the waste roll A4 away from the receiving roller 331.

[0167] When the waste roll A4 on the collecting roller 331 needs to be removed, first, the third moving seat 416 drives the second moving seat 443 to move to the waste removing position along the first direction X1 and / or the second direction X2, so that the receiving space j between the collecting roller 331 of the waste receiving assembly 33 and the first clamping block 4453 and the second clamping block 4455 is opposite in the third direction X3. Then, the second moving seat 443 drives the first clamping block 4453 and the second clamping block 4455 to move along the third direction X3 to approach the collecting roller 331, so that the collecting roller 331 and the waste roll A4 thereon enter the receiving space j between the first clamping block 4453 and the second clamping block 4455, until the pushing part 4457 on the first clamping block 4453 and the pushing part 4457 on the second clamping block 4455 reach one end of the waste roll A4 away from the second moving seat 443. Then, the first clamping block 4453 and the second clamping block 4455 are controlled to approach each other until the pushing part 4457 on the first clamping block 4453 and the pushing part 4457 on the second clamping block 4455 can abut against the end face of the waste roll A4 away from the second moving seat 443. Then, the second moving seat 443 moves away from the collecting roller 331 along the third direction X3, thereby driving the pushing part 4457 to push the waste roll A4 on the collecting roller 331 to move axially until the waste roll A4 is separated from the collecting roller 331 and is supported by the supporting parts 4459 between the first clamping block 4453 and the second clamping block 4455. Then, the first clamping block 4453 and the second clamping block 4455 continue to approach each other to clamp the waste roll A4, so as to avoid the waste roll A4 from loosening. Then, the third moving seat 416 drives the second moving seat 443 to move to the waste placing position along the first direction X1 and / or the second direction X2, so that the first clamping block 4453 and the second clamping block 4455 are located above the waste box 50. Finally, the first clamping block 4453 and the second clamping block 4455 move away from each other until the waste roll A4 between the first clamping block 4453 and the second clamping block 4455 falls into the waste box 50.

[0168] Further, the first clamping block 4453 is provided with a plurality of supporting parts 4459, and the plurality of supporting parts 4459 on the first clamping block 4453 are arranged along the axial direction of the collecting roller 331. The second clamping block 4455 is provided with a plurality of supporting parts 4459, and the plurality of supporting parts 4459 on the second clamping block 4455 are arranged along the axial direction of the collecting roller 331. In this way, the plurality of supporting parts 4459 on the first clamping block 4453 and the plurality of supporting parts 4459 on the second clamping block 4455 jointly support the waste roll A4 entering the receiving space j, so as to avoid the waste roll A4 from falling off.

[0169] Further, in the arrangement direction of the first clamp block 4453 and the second clamp block 4455, each support portion 4459 on the first clamp block 4453 is arranged in a staggered manner with each support portion 4459 on the second clamp block 4455, so that when the first clamp block 4453 and the second clamp block 4455 are close to each other to clamp the waste roll A4, the support portion 4459 on the first clamp block 4453 and the support portion 4459 on the second clamp block 4455 are avoided from colliding.

[0170] It should be noted that the support portions 4459 on the first clamp block 4453 and the second clamp block 4455 are not necessary, and in other embodiments, the first clamp block 4453 and the second clamp block 4455 can not be provided with the support portions 4459. The waste roll A4 entering the receiving space j from the material collecting roller 331 is directly clamped and fixed by the first clamp block 4453 and the second clamp block 4455. In still other embodiments, the first clamp block 4453 and the second clamp block 4455 are also not provided with the support portions 4459. The first clamp block 4453 and the second clamp block 4455 are arranged in the vertical direction, so that the waste roll A4 entering the receiving space j from the material collecting roller 331 is supported on the lower one of the first clamp block 4453 and the second clamp block 4455. For ease of understanding, the embodiments in which the first clamp block 4453 and the second clamp block 4455 are both provided with the support portions 4459 are taken as examples for description herein.

[0171] Further, each pushing portion 4457 includes a second elastic member (not shown) and a pushing column (not shown), and a mounting hole is formed on each side of the first clamp block 4453 and the second clamp block 4455 facing each other. Part of the pushing column is arranged in the corresponding mounting hole, and the other part is located in the space between the first clamp block 4453 and the second clamp block 4455, and the pushing column is movable along the axial direction of the mounting hole. The second elastic member is arranged in the corresponding mounting hole and abuts against the part of the pushing column located in the mounting hole to provide a pre-tightening force that makes the pushing column have a movement tendency to move out of the mounting hole. In this way, when the first clamp block 4453 and the second clamp block 4455 are close to each other and clamp the waste roll A4, the pushing column on the first clamp block 4453 and the pushing column on the second clamp block 4455 abut against each other, but since the second elastic member is elastic, no damage will be caused, and no interference will be caused to the clamping action of the first clamp block 4453 and the second clamp block 4455. Similarly, when the first clamp block 4453 and the second clamp block 4455 are close to each other and clamp the waste roll A4, the pushing column on the first clamp block 4453 abuts against the second clamp block 4455, or the pushing column on the second clamp block 4455 abuts against the first clamp block 4453, but since the second elastic member is elastic, no damage will be caused, and no interference will be caused to the clamping action of the first clamp block 4453 and the second clamp block 4455. Optionally, the pushing portion 4457 can adopt a spring plunger, which is a standard part and is conducive to reducing the cost of the equipment.

[0172] In specific embodiments, the waste material taking mechanism 44 further comprises a sixth mounting base 441 and an eighth driving member 442. The sixth mounting base 441 is mounted on the driving end of the driving assembly 41, so that the driving assembly 41 can drive the sixth mounting base 441 to move along the first direction X1 and / or the second direction X2. A second moving base 443 is movably connected to the sixth mounting base 441 along the third direction X3. The eighth driving member 442 is mounted on the sixth mounting base 441, and the driving end of the eighth driving member 442 is connected to the second moving base 443, so that the eighth driving member 442 can drive the second moving base 443 to move relative to the sixth mounting base 441 along the third direction X3. The third direction X3 is consistent with the axial direction of the material collecting roller 331.

[0173] Specifically, the sixth mounting base 441 is mounted on the second moving base 415 of the driving assembly 41, so that the sixth mounting base 441 can move along the first direction X1, the second direction X2 and the third direction X3 together with the second moving base 415.

[0174] In this way, the sixth mounting base 441 is driven to move along the first direction X1, the second direction X2 and / or the third direction X3 by the second moving base 415, so that the first clamping block 4453 and the second clamping block 4455 are moved to the material collecting roller 331 or the waste material box 50. When the first clamping block 4453 and the second clamping block 4455 are moved to the material collecting roller 331, the second moving base 443 is driven to move along the third direction X3 by the eighth driving member 442, so that the material collecting roller 331 first enters and then exits between the first clamping block 4453 and the second clamping block 4455, and thus the waste material roll A4 on the material collecting roller 331 is separated from the material collecting roller 331 under the pushing action of the pushing part 4457.

[0175] Based on the above-described roll changing device, the present application further provides a winding equipment, which comprises a winding device and the roll changing device as described in any of the above embodiments. The first unwinding unit 31a and the second unwinding unit 31b of the roll changing device are used to alternately output working material tapes unwound from the winding device. The winding device is used to wind the working material tapes unwound from the first unwinding unit 31a or the second unwinding unit 31b to form a battery cell. It should be noted that the working material tapes can be positive electrode sheets or negative electrode sheets, and of course can also be other types of material tapes, which are not limited herein.

[0176] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0177] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A roll changing device, characterized in that, The application relates to a tape feeding device, which comprises: a tape unwinding mechanism (31) for loading a working tape roll and a standby tape roll (A1) and driving the working tape roll to unwind and output a working tape downstream; a tape receiving mechanism (30) comprising a tape receiving assembly (32) and a waste tape collecting assembly (33), wherein the tape receiving assembly (32) is arranged downstream of the tape unwinding mechanism (31) and has a tape receiving channel (g) for the working tape to pass through, and the waste tape collecting assembly (33) is arranged on the downstream side of the tape receiving assembly (32); and a tape feeding mechanism comprising a driving assembly (41) and a tape feeding assembly (42) mounted on the driving end of the driving assembly (41), wherein the driving assembly (41) is used for driving the tape feeding assembly (42) to move to the tape unwinding mechanism (31) so that the tape feeding assembly (42) picks up the starting end (A3) of the standby tape (A2) of the standby tape roll (A1) on the tape unwinding mechanism (31); the driving assembly (41) is also used for driving the tape feeding assembly (42) to pass through the tape receiving channel (g) and reach the downstream of the waste tape collecting assembly (33); and the waste tape collecting assembly (33) is used for winding the standby tape (A2) passing through.

2. The roll changer according to claim 1, characterized in that The tape feeding assembly (42) has an adhesive tape suction roller (421) for sucking the adhesive tape (e). Under the driving action of the driving assembly (41), the tape feeding assembly (42) can move to abut against the standby tape roll (A1) on the tape unwinding mechanism (33) by using the adhesive tape suction roller (421), so that the adhesive tape (e) on the adhesive tape suction roller (421) is bonded with the starting end (A3) of the standby tape (A2) on the standby tape roll (A1).

3. The roll changer according to claim 2, characterized in that The adhesive tape suction roller (421) can be controlled to rotate around its own axis to wind the standby tape (A2) on the standby tape roll (A1) at the tape unwinding mechanism (33) and unwind the standby tape (A2) and the adhesive tape (e) downstream of the waste tape collecting assembly (33).

4. The roll changer according to claim 2 or 3, characterized in that The tape feeding assembly (42) comprises a first mounting base (418), a first rotary driving member (422) and a first rotary seat (423), the first mounting base (418) is mounted on the driving end of the driving assembly (41), the first rotary driving member (422) is mounted on the first mounting base (418), the first rotary seat (423) is mounted on the driving end of the first rotary driving member (422), and the adhesive tape suction roller (421) is mounted on the first rotary seat (423).

5. The roll changer according to claim 4, characterized in that The tape feeding assembly (42) further comprises a first sliding seat (424) and a second sliding seat (425) both arranged on the first rotary seat (423), the adhesive tape suction roller (421) comprises a first suction half roller (4211) mounted on the first sliding seat (424) and a second suction half roller (4213) mounted on the second sliding seat (425), and the surfaces of the first suction half roller (4211) and the second suction half roller (4213) which are away from each other are combined to form a roller surface for winding the adhesive tape (e). The first sliding seat (424) can drive the first adsorption half roller (4211) to move close to or away from the second adsorption half roller (4213), and / or the second sliding seat (425) can drive the second adsorption half roller (4213) to move close to or away from the first adsorption half roller (4211).

6. The roll changer according to claim 5, characterized in that The surfaces of the first adsorption half roller (4211) and the second adsorption half roller (4213) away from each other are adsorption surfaces (h) for adsorbing adhesive tapes (e) wound on the adsorption surfaces (h).

7. The roll changer according to claim 5, characterized in that The feeding assembly (42) further comprises a first clamping driving member (426) mounted on the first rotating seat (423), and a driving end of the first clamping driving member (426) is connected with the first sliding seat (424) to drive the first sliding seat (424) to move close to or away from the second sliding seat (425); and / or The feeding assembly (42) further comprises a second clamping driving member (427) mounted on the first rotating seat (423), and a driving end of the second clamping driving member (427) is connected with the second sliding seat (425) to drive the second sliding seat (425) to move close to or away from the first sliding seat (424).

8. The roll changer of claim 4 wherein, The driving assembly (41) comprises a driving unit (410), a third moving seat (416) and an elastic buffer (419), the third moving seat (416) is mounted on a driving end of the driving unit (410), the first mounting seat (418) is movably connected on the third moving seat (416), and two ends of the elastic buffer (419) are respectively connected with the first mounting seat (418) and the third moving seat (416).

9. The roll changer of claim 4 wherein, The driving assembly (41) is used to drive the first mounting seat (418) to move along a first direction (X1) and a second direction (X2), or along the first direction (X1), the second direction (X2) and a third direction (X3); wherein the first direction (X1), the second direction (X2) and the third direction (X3) are intersected with each other, and the third direction (X3) is consistent with an axial direction of the adhesive roller (421).

10. The roll changing device according to claim 1, characterized in that The waste collecting assembly (33) comprises a first moving seat (334), a second rotating driving member (336) and a collecting roller (331), the second rotating driving member (336) is mounted on the first moving seat (334), and the collecting roller (331) is mounted on the first moving seat (334) and connected with a driving end of the second rotating driving member (336); The collecting roller (331) has an insertion slot (k) for the standby material belt (A2) to enter, the first moving seat (334) can drive the collecting roller (331) to move along its own axis, and the second rotating driving member (336) is used to drive the collecting roller (331) to rotate to drive the standby material belt (A2) to be wound on the collecting roller (331).

11. The roll changing device according to claim 10, characterized in that The waste collecting assembly (33) further comprises a connecting seat (3321), a pressing block (3322) and a first elastic member (3323), the connecting seat (3321) is arranged at intervals with the collecting roller (331), the pressing block (3322) is movably connected to one side of the connecting seat (3321) towards the collecting roller (331), and the first elastic member (3323) is abutted between the connecting seat (3321) and the pressing block (3322), and the pressing block (3322) is pressed on the waste roll (A4) wound on the collecting roller (331) under the elastic force provided by the first elastic member (3323).

12. The roll changing device of claim 10, wherein The tape receiving assembly (32) comprises a first tape receiving unit (32a) and a second tape receiving unit (32b), and the first tape receiving unit (32a) and the second tape receiving unit (32b) are arranged at intervals to form the tape receiving channel (g), and the unwinding mechanism (31) comprises a first unwinding unit (31a) and a second unwinding unit (31b) both located upstream of the tape receiving channel (g), wherein the first unwinding unit (31a) is located on the same side as the first tape receiving unit (32a), and the second unwinding unit (31b) is located on the same side as the second tape receiving unit (32b). The first unwinding unit (31a), the second unwinding unit (31b), the first tape receiving unit (32a) and the second tape receiving unit (32b) are all movable along the axial direction of the collecting roller (331).

13. The roll changer according to claim 12, characterized in that The first unwinding unit (31a) is configured to be controllably movable along the axial direction of the collecting roller (331), the second unwinding unit (31b) is configured to be controllably movable along the axial direction of the collecting roller (331), the first tape receiving unit (32a) is controllably connectable to or separable from the first unwinding unit (31a), and the second tape receiving unit (32b) is controllably connectable to or separable from the second unwinding unit (31b).

14. The roll changer according to claim 13, characterized in that The tape receiving mechanism (30) further comprises a second clutch assembly, the second clutch assembly comprises a first clamping part and a first connecting part, one of the first clamping part and the first connecting part is mounted on the first unwinding unit (31a), and the other is mounted on the first tape receiving unit (32a), and the first clamping part is controllably clamped or released on the first connecting part.

15. The roll changing device of claim 13, wherein The tape receiving mechanism (30) further comprises a third clutch assembly (36), the third clutch assembly (36) comprises a second clamping part (361) and a second connecting part (362), one of the second clamping part (361) and the second connecting part (362) is mounted on the second unwinding unit (31b), and the other is mounted on the second tape receiving unit (32b), and the second clamping part (361) is controllably clamped or released on the second connecting part (362).

16. The roll changing apparatus of claim 10, wherein The first tape receiving unit (32a) and the second tape receiving unit (32b) are alternatively connectable to the first moving seat (334).

17. The roll changing device of claim 16, wherein The tape connecting mechanism (30) further comprises a first clutch assembly (34), the first clutch assembly (34) comprising a clutch sliding base (342) and a clutch driving member (341), the clutch driving member (341) being installed on the first movement base (334), the clutch sliding base (342) being movably connected to the first movement base (334) and connected to a driving end of the clutch driving member (341); the clutch driving member (341) can drive the clutch sliding base (342) to move relative to the first movement base (334) to a first position connected to the first tape connecting unit (32a) and a second position connected to the second tape connecting unit (32b).

18. A winding apparatus characterized by comprising: A change reel device comprising a tape connecting mechanism according to any one of claims 1 to 17.

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