CN116238952A

CN116238952A - Material area feed arrangement and electrode assembly equipment

Info

Publication number: CN116238952A
Application number: CN202310536195.0A
Authority: CN
Inventors: 陈海峰; 胡煜之; 戚建国
Original assignee: Suzhou Zhongke Ruilong Technology Co ltd
Current assignee: Suzhou Zhongke Ruilong Technology Co ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-06-09

Abstract

The invention discloses a material belt feeding device and electrode assembly assembling equipment, and belongs to the technical field of battery manufacturing. The discharging mechanism is used for placing a material belt, target pieces and positioning holes are arranged on the material belt at equal intervals, and the target pieces are arranged to be easily separated from the material belt; the carrier mechanism is provided with a guide channel for the material belt to pass through; the punching mechanism is arranged corresponding to the guide channel and is used for receiving the material belt guided out of the guide channel and punching down the target piece from the material belt; the feeding mechanism is used for feeding the material strips with equal length into the punching mechanism from the guide channel; the material carrying mechanism is used for moving the target piece punched by the punching mechanism out of the punching mechanism. The material belt feeding device can conveniently punch down the target piece from the material belt, so that the feeding efficiency is improved, the automation degree is improved, and the dependence on manpower is reduced.

Description

Material area feed arrangement and electrode assembly equipment

Technical Field

The invention relates to the technical field of battery manufacturing, in particular to a material belt feeding device and electrode assembly assembling equipment.

Background

As shown in fig. 24 and 25, fig. 24 and 25 show an electrode assembly including a plate body 10, an electrode 11, and an insulating adhesive layer 12 connected between the electrode 11 and the plate body 10, the plate body 10 being provided with a central hole 100, the electrode 11 having an electrode post 110 protruding outward and penetrating into the central hole 100. The insulating adhesive layer 12 is a hot melt adhesive, and the electrode 11 and the body 10 are connected by hot pressing.

In the prior art, taking the chinese patent application No. CN202210960648.8 as an example, the disclosed electrode assembly hot-pressing apparatus needs to place the plate body 10, the insulating adhesive layer 12, the electrode 11 and the like in the carrier for positioning, and then adhere the insulating adhesive layer 12 to the plate body 10 and the electrode 11 in a hot-melt bonding manner, so as to complete the assembly of the electrode assembly.

The solution disclosed in the above patent can be used for hot-melt connection of electrode assemblies in a semi-automatic manner, but the degree of automation is still insufficient and the productivity is low. The applicant researches find that the process of placing the target parts such as the plate body 10, the electrode 11 and the like has higher dependence on manpower, and is difficult to realize automation, and if the automatic feeding can be realized, the automation degree is further improved, and the productivity is increased.

The applicant has found that if the target member can be placed on the belt, feeding by movement of the belt is advantageous in increasing the feeding efficiency, but how to efficiently separate the target member from the belt becomes a new problem to be solved. Further, the operation of taking out the target member punched from the material tape and then placing the target member on the carrier has a high requirement for positional accuracy, and there is no device capable of reliably transferring the target member such as the plate body 10 and the electrode 11 to the carrier.

Disclosure of Invention

The invention aims to provide a material belt feeding device and electrode assembly assembling equipment, wherein the material belt feeding device can conveniently punch down target parts on a material belt.

To achieve the above object, in one aspect, the present invention provides a tape feeding device, including:

the feeding mechanism is used for placing a material belt, target pieces and positioning holes are arranged on the material belt at equal intervals, and the target pieces are arranged to be easily separated from the material belt;

the carrier mechanism is provided with a guide channel for the material belt to pass through;

the punching mechanism is arranged corresponding to the guide channel and is used for receiving the material belt guided out of the guide channel and punching the target piece from the material belt;

the feeding mechanism is used for feeding the material strips with equal length into the punching mechanism from the guide channel; the method comprises the steps of,

and the material carrying mechanism is used for moving the target piece punched by the punching mechanism out of the punching mechanism.

Further, the carrier mechanism comprises a carrier and two guide strips which are oppositely arranged, wherein the guide strips are arranged at intervals with the bearing surface of the carrier so as to form the guide channel.

Further, a spacing groove avoiding the target piece is formed between the two guide strips, and the target piece is not contacted with the guide strips;

the bearing surface is provided with an avoidance groove for avoiding the target piece, and the target piece is not contacted with the bearing surface.

Further, the feeding mechanism comprises a first linear driver, a second linear driver and a positioning column, wherein the first linear driver is used for driving the positioning column to be inserted into the positioning hole, and the second linear driver is used for driving the positioning column to move along the moving direction of the material belt.

Further, the guide strip is provided with a guide long hole which is arranged corresponding to the positioning hole, the guide long hole is arranged in an extending mode along the moving direction of the material belt, and the positioning column is in sliding fit connection in the guide long hole.

Further, the feeding mechanism further comprises a first limiting part and a second limiting part which are fixed relative to the carrying platform, wherein the first limiting part and the second limiting part are arranged at intervals along the moving direction of the material belt and are respectively used for limiting two limiting positions of the movement of the positioning column.

Further, the punching mechanism comprises a fixing frame, a driving device and a die, wherein the driving device and the die are connected with the fixing frame, the die comprises an upper die, a guide post and a lower die, the upper die is relatively fixed with the fixing frame, the guide post is in sliding fit connection with the upper die, the lower die is connected with the guide post, the upper die is provided with a material channel corresponding to the guide channel, the lower die is provided with a punching cutter which is vertically arranged, and the driving device is used for driving the lower die to move towards the upper die so as to punch down a target piece in the material channel from the material strip.

Further, the die further comprises a middle die slidingly connected with the guide post and an elastic piece elastically abutted between the lower die and the middle die, the middle die is provided with a bolt corresponding to the positioning hole, and when the middle die is driven to move upwards, the bolt is inserted into the positioning hole.

Further, the upper die is provided with through holes corresponding to the positions and the number of the target pieces in the die, the material carrying mechanism comprises a material moving assembly and a sucking assembly, the sucking assembly comprises a suction head for sucking the target pieces, and the material moving assembly is used for moving the suction head into or out of the through holes.

Further, the material moving assembly comprises a third linear driver and a fourth linear driver, the third linear driver is used for driving the sucking assembly to move up and down, and the fourth linear driver is used for driving the sucking assembly to move horizontally.

Further, the feeding mechanism feeds N target pieces to the punching mechanism at a time, the punching mechanism punches down N target pieces at a time, and the carrying mechanism carries N target pieces at a time.

Further, the material belt feeding device also comprises a position detection assembly, wherein the position detection assembly detects whether the material belt moves in place or not through the positioning hole of the material belt;

the position detection assembly comprises a correlation type photoelectric sensor, the correlation type photoelectric sensor comprises a transmitting end and a receiving end which are oppositely arranged on the upper side and the lower side of the material belt, and when the material belt stops moving, if light rays of the correlation type photoelectric sensor pass through the positioning holes, the material belt is indicated to move in place.

Further, the material belt feeding device further comprises a material detection assembly, wherein the material detection assembly is used for detecting whether a target piece exists at a position on the material belt for setting the target piece;

the feeding mechanism feeds N target pieces into the punching mechanism at a time, N is an integer greater than or equal to 1, and the material belt feeding device comprises N material detection assemblies for detecting the target pieces at the adjacent N positions; the material detection assembly comprises a correlation type photoelectric sensor, the correlation type photoelectric sensor comprises a transmitting end and a receiving end which are oppositely arranged on the upper side and the lower side of the material belt, the transmitting end and the receiving end are aligned with the position on the material belt for setting a target piece, and when the material belt stops moving, and the light of the correlation type photoelectric sensor is blocked, the existence of the target piece is indicated.

Further, the material belt feeding device further comprises a tail detection assembly, wherein the tail detection assembly is arranged at the inlet of the guide channel and is used for detecting whether the material belt exists at the inlet;

the tailing detection assembly comprises a correlation type photoelectric sensor, the correlation type photoelectric sensor comprises a transmitting end and a receiving end which are oppositely arranged on the upper side and the lower side of the material belt, the transmitting end and the receiving end are aligned with the entity part on the belt body, and when the material belt stops moving, and the light rays of the correlation type photoelectric sensor are blocked, the existence of the material belt is indicated.

Further, the target is a plate body or an electrode of the electrode assembly.

In another aspect, the invention provides an electrode assembly apparatus comprising a web feeding device as defined in any one of the preceding claims.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the material belt feeding device comprises a discharging mechanism, a carrying platform mechanism, a punching mechanism, a feeding mechanism and a carrying mechanism, wherein the material belt on the discharging mechanism sequentially passes through the carrying platform mechanism and the punching mechanism, the feeding mechanism can send the material belt with equal length into the punching mechanism each time, the punching mechanism can punch down a target piece from the material belt, and the punched target piece can be moved to a required position (for example, on a carrier) by the carrying mechanism. Therefore, the target piece on the material belt can be punched and removed under the cooperation of all mechanisms, so that the feeding efficiency and the automation degree are improved, and the dependence on manpower is reduced.

2. As improvement, the die is provided with an upper die, a middle die and a lower die, and the middle die is provided with a bolt which is used for being inserted into a positioning hole of the material belt, so that the relative position of the material belt and the punching cutter can be better ensured during punching operation, and the punching operation is more accurate and reliable.

3. As improvement, the number of target pieces fed into the punching mechanism each time by the feeding mechanism, the number of target pieces punched by the punching mechanism at one time and the number of target pieces carried by the carrying mechanism at one time are the same, so that the cooperation of the mechanisms is more coordinated, and the working efficiency is higher.

Drawings

Fig. 1 is a perspective view of a tape feeding device according to an embodiment of the present invention.

Fig. 2 is a perspective view of the structure of fig. 1 from another view direction.

Fig. 3 is a schematic structural view of a material belt according to an embodiment of the present invention, in which a target member is a plate body.

Fig. 4 is a schematic structural view of a material strip according to an embodiment of the present invention, in which the target member is an electrode.

Fig. 5 is a schematic perspective view of a stage mechanism according to an embodiment of the present invention.

Fig. 6 is a schematic view of the present invention with a web positioned within a guide channel.

Fig. 7 is an enlarged view of the section I in fig. 6.

FIG. 8 is a schematic view of the structure of the feed rollers at the entrance of the stage mechanism of the present invention.

FIG. 9 is a schematic view of the position of the stage mechanism, feed mechanism, position sensing assembly, material sensing assembly and tailing sensing assembly of the present invention.

Fig. 10 is a schematic view of a positioning post inserted into a positioning hole of a material belt in the present invention.

FIG. 11 is a schematic illustration of the position sensing assembly, the material sensing assembly and the tailing sensing assembly of the present invention.

Fig. 12 is a perspective view of a punch-out mechanism according to one embodiment of the present invention.

Fig. 13 is a perspective view of a mold according to an embodiment of the present invention.

Fig. 14 is a top view of the mold shown in fig. 13.

Fig. 15 is a cross-sectional view taken along section line A-A of fig. 14.

Fig. 16 is a sectional view taken along section line B-B in fig. 14.

Fig. 17 is a schematic view showing the structure of the lower die and the guide post, the elastic member and the die cutter connected thereto in the present invention.

Fig. 18 is a schematic view of the structure of a middle mold according to an embodiment of the present invention.

Fig. 19 is a schematic structural view of a driving device according to an embodiment of the present invention.

FIG. 20 is a schematic view showing the connection of the fixed base, the sliding base and the eccentric wheel according to one embodiment of the present invention.

Fig. 21 is a schematic view of the positions of the material handling mechanism and the punching mechanism according to an embodiment of the present invention.

Fig. 22 is a schematic diagram showing connection between the suction assembly and the third linear driving device according to an embodiment of the present invention.

Fig. 23 is a schematic view of a carrier disposed on a moving path of a suction assembly according to an embodiment of the present invention.

Fig. 24 is an exploded view of an electrode assembly according to an embodiment of the present invention.

Fig. 25 is a cross-sectional view of an electrode assembly according to an embodiment of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not limiting. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms "comprising" and "having" and any variations thereof herein are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

As shown in fig. 1 and 2, the invention provides a material belt feeding device, which comprises a discharging mechanism 2, a carrying platform mechanism 4, a punching mechanism 5, a feeding mechanism 6 and a material carrying mechanism 8.

The discharging mechanism 2 comprises a discharging disc 20, a discharging motor 21 and a guiding rail 22. The discharging tray 20 is used for placing the coiled material belt 3, and the leading-out end of the material belt 3 passes through the guide rail 22 and then enters the carrying platform mechanism 4 and then enters the punching mechanism 5. The discharging motor 21 is used for timely driving the discharging disc 20 to rotate so as to discharge the material belt 3, so that the material belt 3 can enter the punching mechanism 5 under the traction of the feeding mechanism 6.

As shown in fig. 3, the material tape 3 includes a tape body 31 and target pieces 1 provided on the tape body 31 at equal intervals, the target pieces 1 being provided so as to be easily separated from the material tape 3. In some embodiments, the outer edge of the target 1 is pre-punched, and a notch (i.e. the breaking line 310) with a depth smaller than the thickness of the belt body 31 is formed in the thickness direction, or only a part of the outer edge of the target 1 is connected to the belt body 31, so that the target 1 can be easily separated from the belt 3 when being subjected to external force, and the difficulty of punching the target 1 from the belt 3 by the punching mechanism 5 is reduced.

The material belt 3 includes a plurality of positioning holes 30 arranged at equal intervals, and the distance between adjacent positioning holes 30 is the same as the distance between the target members 1 along the moving direction a of the material belt 3 (the moving direction a coincides with the length direction of the material belt 3), and the distance is L as shown in fig. 3. Preferably, the positioning holes 30 have two rows spaced apart along the width direction of the material tape 3, and the two rows of positioning holes 30 are located on both sides of the target member 1, respectively.

The type of target 1 is not limited, and in some embodiments, as shown in fig. 3, the target 1 is a plate body 10 of an electrode assembly, and the plate body 10 is in the shape of a circular ring. In other embodiments, as shown in fig. 4, the target is an electrode 11 of an electrode assembly, which is generally circular in shape and has a convex electrode post 110 disposed at the center. In other embodiments, the target 1 may also be other parts.

The stage mechanism 4 is provided with a guide passage 40 through which the feed belt 3 passes. As shown in fig. 5 to 7, the stage mechanism 4 includes a stage 41 and two oppositely disposed guide bars 42 connected to the stage 41, the guide bars 42 extending along the moving direction a of the material tape 3 and being disposed at intervals from a bearing surface 410 of the stage 41 for supporting the material tape 3 to form the guide passage 40. The distance B between the guide strip 42 and the carrying surface 410 is larger than the thickness of the belt body 31 of the material belt 3, and preferably the distance B is slightly larger than the thickness of the belt body 31, so that the material belt 3 can be kept straight in the guide channel 40, and the influence of factors such as tilting and bending of the material belt 3 on the position accuracy is reduced.

As shown in fig. 8, the stage mechanism 4 further includes two pairs of feeding rollers 44, the feeding rollers 44 being disposed at the entrance of the guide path 40 for guiding the tape 3 into the guide path 40. Each pair of the feeding rollers 44 includes two rollers respectively abutting against the upper and lower surfaces of the belt body 31, and the two pairs of the feeding rollers 44 respectively press both sides of the belt body 31 in the width direction.

As a preferred embodiment, referring to fig. 6, a spacing groove 43 for exposing the whole of the target member 1 is formed between the two guide bars 42, and the width of the spacing groove 43 is equal to or greater than the dimension of the target member 1 in the width direction of the material tape 3 so that the upper side of the target member 1 is exposed. Further, referring to fig. 6 and 7, the bearing surface 410 is provided with the avoiding groove 411 for avoiding the target member 1, and the width of the avoiding groove 411 is equal to or greater than the dimension of the target member 1 in the width direction of the material belt 3, so that abrasion caused by direct contact between the target member 1 and the bearing surface 410 during moving can be avoided. Further, the thickness of the target member 1 may be greater than that of the belt body 31, and the target member 1 may be prevented from being caught or friction-damaged by providing the interval groove 42 and the escape groove 411.

The feeding mechanism 6 is used for feeding the material belt 3 with equal length from the guide channel 40 into the punching mechanism 5. The feeding mechanism 6 can feed N target pieces 1 into the punching mechanism 5 at one time, wherein N is an integer greater than or equal to 1. The number of target pieces 1 fed into the punching mechanism 5 can be controlled by controlling the distance the material belt 3 moves. For example, when the feeding mechanism 6 drives the tape 3 each time by the distance L, the number of the target pieces 1 fed into the punching mechanism 5 is 1, when the distance of movement is 2L, the number of the target pieces 1 fed into the punching mechanism 5 is 2, and so on. In order to improve the efficiency, more than two target pieces 1 may be fed into the punching mechanism 5 at a time, and in this embodiment, the number of target pieces 1 fed into the punching mechanism 5 by the feeding mechanism 6 at a time is 4.

As a preferred embodiment, as shown in fig. 9 and 10, the feeding mechanism 6 includes a first linear actuator 60, a second linear actuator 61, and a positioning column 62, and the first linear actuator 60 and the second linear actuator 61 may be, for example, a cylinder, an electric push rod, or a device with a linear driving function formed by combining a motor with a transmission assembly, or the like. In the present embodiment, the first and second

linear actuators

60 and 61 are each cylinders.

The first linear driver 60 is used for driving the positioning column 62 to perform linear motion in the vertical direction, the positioning column 62 is located above the material belt 3, and when the positioning column 62 is aligned with the positioning hole 30, the positioning column 62 is inserted into the positioning hole 30 after being lowered. The second linear driver 61 is used for driving the positioning column 62 to perform linear motion in the horizontal direction, and the motion direction of the second linear driver is consistent with the motion direction A of the material belt 3. When the positioning column 62 is inserted into the positioning hole 30, the movement of the positioning column 62 drives the material belt 3 to move, so that the material belt 3 enters the punching mechanism 5.

As shown in fig. 9, the feeding mechanism 6 further includes a guide rail 65 provided on the stage 41, a slide plate 66 connected to the guide rail 65, and a riser 67 connected to the slide plate 66. The guide rail 65 is disposed along the moving direction a of the material tape 3, and the second linear actuator 61 is connected to the slide plate 66, and is capable of driving the slide plate 66 to slide, and the riser 67 moves in synchronization with the slide plate 66. The first linear driver 60 is connected to the riser 67, and is connected to the positioning column mounting seat 68, and the positioning column mounting seat 68 is slidably coupled to the riser 67 by means of a guide rail or a guide groove, etc., so that the positioning column 62 can slide in the vertical direction under the driving of the first linear driver 60, and can move along with the positioning column mounting seat 68.

Preferably, the number of the positioning columns 62 is two, so that the two positioning columns 62 can be simultaneously inserted into the two positioning holes 30 on two sides of the material belt 3, positioning is more accurate, and force application to the material belt 3 during movement is more balanced.

The feeding mechanism 6 further comprises a first limiting piece 63 and a second limiting piece 64 which are fixed relative to the carrying platform 41, wherein the first limiting piece 63 and the second limiting piece 64 are arranged at intervals along the moving direction A of the material belt 3, and the first limiting piece 63 and the second limiting piece 64 are respectively used for limiting two limiting positions of the movement of the positioning column 62. The sliding plate 66 is provided with a projection 660 extending between the two limiting members, and limiting is achieved through abutting of the projection 660 and the limiting members. The projection 660 abuts against the first stopper 63 when the second linear actuator 61 is in the retracted state, and the projection 660 abuts against the second stopper 64 when the second linear actuator 61 is in the extended state. The distance of a single movement of the strip 3 is defined by the distance between the two limit pieces.

As a preferred embodiment, the guide bar 42 is provided with a guide long hole 420 provided corresponding to the positioning hole 30, the guide long hole 420 is provided to extend along the moving direction a of the material tape 3, and the positioning post 62 is inserted into the positioning hole 30 after passing through the guide long hole 420, and is slidably fitted in the guide long hole 420 so as to be movable along the guide long hole 420. In this way, the positioning column 62 is not easy to incline due to stress, and is more convenient to move linearly along a preset path, so that the position accuracy of conveying the material belt 3 is improved.

In some embodiments, the web feeding device further comprises a position detection assembly 70, the position detection assembly 70 detecting whether the web 3 is moved into position through the positioning hole 30 of the web 3, in particular, indicating that the web 3 is moved into position when the positioning hole 30 is aligned with the position of the position detection assembly 70. As a preferred embodiment, as shown in fig. 9 and 11, the position detecting unit 70 includes an opposite-type photoelectric sensor including a transmitting end and a receiving end disposed at upper and lower sides of the material tape 3, and when the material tape 3 stops moving, if the positioning hole 30 is aligned with the opposite-type photoelectric sensor, the light ray 72 emitted from the transmitting end can be received by the receiving end. Therefore, when the material belt 3 stops moving, if the light ray 72 of the opposite-type photoelectric sensor passes through the positioning hole 30, the material belt 3 is indicated to move in place, and the conveying position of the feeding mechanism 6 is accurate, otherwise, if the light ray 72 does not pass through the positioning hole 30, the position is indicated to be inaccurate, an abnormal condition exists, the equipment can report errors, and the engineering personnel is called to confirm.

As a preferred embodiment, the material tape feeding device includes two or more sets of position detecting members 70 arranged at intervals along the moving direction a of the material tape 3, and the distance between adjacent two position detecting members 70 is the same as the distance between adjacent two positioning holes 30. Thereby, whether the positions of the adjacent positioning holes 30 are accurate or not can be detected, and the judgment accuracy is further improved.

In some embodiments, the material strip feeding device further comprises a material detection assembly 71, wherein the material detection assembly 71 is configured to detect whether the target 1 is present at a position on the material strip 3 for setting the target 1. The target 1 provided on the tape 3 may be missing in some cases, and the missing portion may affect the assembly work of the subsequent electrode assembly. The number of the material detecting components 71 is the same as that of the target pieces 1 entering the breaking mechanism 5 once, and the number of the material detecting components 71 is N, and the N material detecting components 71 are used for detecting the target pieces 1 at the adjacent N positions.

The position of the material detecting unit 71 corresponds to the position of the target 1 after the material strip 3 moves during design, so that when a certain material detecting unit 71 does not detect the target 1, it can know which position lacks the target 1.

As a preferred embodiment. The material detecting unit 71 includes a correlation type photoelectric sensor including a transmitting end and a receiving end which are disposed on the upper and lower sides of the material tape 3, respectively, and the transmitting end and the receiving end are aligned with the position of the target 1 on the material tape 3, more precisely, with the solid portion of the target 1, so that if the target 1 exists between the transmitting end and the receiving end, the light rays 72 of the transmitting end and the receiving end are blocked, whereas the receiving end can receive the light rays 72 of the transmitting end. Therefore, when the movement of the material tape 3 is stopped, if the light 72 of the opposite-type photoelectric sensor is blocked, it indicates that the target 1 is present, and otherwise, the target 1 is not present. In the absence of the target 1, the device may record or report errors.

In some embodiments, the material strip feeding device further comprises a tail material detection component 73, and the tail material detection component 73 is located at the inlet of the carrier mechanism 4 and is used for detecting whether the material strip 3 exists at the inlet, that is, detecting whether the material strip 3 runs out or not, so as to judge whether the equipment needs to be fed.

As a preferred embodiment, the tail stock detection assembly 73 comprises an opposite-type photoelectric sensor comprising a transmitting end and a receiving end disposed opposite the upper and lower sides of the material strip 3, the transmitting end and the receiving end being aligned with the position of the solid portion of the strip body 31. When a certain positioning hole 30 is aligned with the position detecting component 70, the tail detecting component 73 is aligned with a solid part of the belt body 31, but not aligned with the positioning hole 30 or other hollowed-out parts, so that when the light of the tail detecting component 73 is blocked, the residual amount of the material belt 3 is indicated, and when the light of the tail detecting component 73 is not blocked, the material belt 3 is indicated to be used up, and at the moment, a worker needs to be reminded of material replenishment.

It will be appreciated that the position detection assembly 70, the material detection assembly 71 and the tail detection assembly 73 may employ other sensors, such as distance sensors or other photoelectric sensors, in addition to the correlation type photoelectric sensors.

As shown in fig. 12, the punching mechanism 5 includes a fixing frame 50, and a driving device 51 and a die 52 both connected to the fixing frame 50, the driving device 51 being used for driving the die 52 to punch the material tape 3 located in the die 52 so as to disengage the target member 1 from the material tape 3.

As a preferred embodiment, as shown in fig. 13, 16 and 17, the mold 52 includes an upper mold 520, a middle mold 522 and a lower mold 523 which are disposed in this order from top to bottom. The upper die 520 is fixedly connected with the fixing frame 50. The mold 52 further includes guide posts 521 fixedly connected to the lower mold 523, and in this embodiment, the number of the guide posts 521 is four. The upper die 520 and the middle die 522 are each slidably coupled to the guide post 521 so as to be movable in a vertical direction along the guide post 521.

The upper die 520 is provided with a material channel 5200 corresponding to the guide channel 40, the material channel 5200 is in butt joint with the guide channel 40, and the material belt 3 can move into the material channel 5200 from the guide channel 40. As shown in fig. 15 and 17, the lower die 523 is provided with a vertically arranged die cutter 5230, the die cutter 5230 is located directly below the target piece 1 in the material passage 5200, and when the lower die 523 moves upward, the die cutter 5230 rises with the lower die 523 and projects into the material passage 5200 to be in contact with the target piece 1 or the belt body 3 outside the target piece 1, thereby separating the target piece 1 from the belt 3.

In a preferred embodiment, the end of the die 5230 is cylindrical, the diameter of which is equal to or smaller than the diameter of the target 1, and when the lower die 523 is raised, the die 5230 is raised to contact the lower surface of the target 1 and presses the target 1 to displace the belt 31 relatively, so that the target 1 can be separated from the belt 31 and positioned flat on the die 5230.

The die 52 is provided with a plurality of punching stations (four in the drawing) of which the number is the same as the number of target pieces 1 that are entered into the die 52 per one movement of the material web 3. Each punching station is correspondingly provided with a punching cutter 5230. In this way, each time the lower die 523 is operated, all the target objects 1 in the die 52 can be punched out of the material belt 3, and the efficiency is higher.

In order to improve the reliability in the punching, it is necessary to ensure the position of the target 1 on the tape 3 in the die 52 and the position accuracy of the punch 5230. As shown in fig. 15 and 18, the middle mold 522 is provided with pins 5220 corresponding to the positioning holes 30 on the material tape 3, and preferably, each positioning hole 30 on the material tape 3 located in the mold 52 is provided with one pin 5220. As shown in fig. 16 and 17, an elastic member 524 is provided between the lower die 523 and the middle die 522, and in this embodiment, the elastic member 524 is a spring, and is elastically abutted between the lower die 523 and the middle die 522, and the number of the elastic members 524 is plural in order to improve the balance of the stress. When the lower die 523 rises, the middle die 522 rises under the action of the pushing force of the elastic piece 524, and the bolt 5220 is inserted into the positioning hole 30, so that the part of the material belt 3 positioned in the die 52 can be accurately positioned and fixed, the relative position of the punching cutter 5230 and the target piece 1 is more accurate, and when the subsequent punching cutter 5230 rises to punch the material belt 3, the punching cutter is more accurate and reliable, and the target piece 1 or the belt body 31 is not easily damaged due to inaccurate positions.

The structure of the driving device 51 for driving the lower die 523 to rise is not limited, and for example, an air cylinder, a hydraulic cylinder, or other devices may be directly used. In this embodiment, as shown in fig. 19 and 20, the driving device 51 includes a motor 510, an eccentric 511, a fixed base 512, and a sliding base 513. The fixing base 512 is fixedly connected to the fixing frame 50. The sliding seat 513 is slidably coupled to the fixed seat 512 by a sliding rail 514, and can move along a vertical direction. Eccentric 511 is coupled to motor 510 and is capable of being rotated by motor 510. The sliding seat 513 is provided with a receiving cavity 5130 with a length larger than a height, the eccentric wheel 511 is arranged in the receiving cavity 5130, and when the eccentric wheel 511 rotates, the sliding seat 513 can be forced upwards, so that the sliding seat 513 moves up and down. The upper end of the sliding seat 513 is fixedly connected with the lower die 523, so that the lower die 523 is driven to move up and down, and the die 52 is operated.

As shown in fig. 1 and 2, the carrying mechanism 8 is used to remove the target 1 separated from the tape 3 in the die 52 from the die 52, and for example, the target 1 may be directly moved into the carrier 9 for subsequent operations.

The upper die 520 is provided with through holes 5201 (see fig. 13 and 15) corresponding to the positions and the number of the die cutters 5230, and further referring to fig. 21 and 22, the carrying mechanism 8 includes a carrying assembly 80 and a sucking assembly 81, the sucking assembly 81 includes a suction head 810 for sucking the target member 1, the suction head 810 is rod-shaped, a duct is provided therein, and the upper end of the suction head 810 is connected with a negative pressure generator through a pipe so that it can generate negative pressure, and when it abuts against the target member 1, the target member 1 can be sucked. The transfer assembly 80 is used to move the suction head 810, which can move the suction head 810 into the through hole 5201 to suck the target 1, or can move the suction head 810 out of the through hole 5201 to move the target 1 out of the die. In some embodiments, the end of the punch 5230 is cylindrical and is configured to contact the target 1, and the punched target 1 is located on the upper surface of the punch 5230, and the suction head 810 can descend and suck the target 1. The suction assembly 81 includes a connection block 811 to which a suction head 810 is connected. The number of tips 810 corresponds to the number of punching stations of the die 52. So that the suction assembly 81 can suck out the target 1 in the die 52 at the same time. As shown in fig. 22, the connecting block 811 is further provided with a positioning shaft 812, and the die 52 is provided with a positioning shaft hole 525 (reference numerals see fig. 13 and 14), and by matching the positioning shaft 812 with the positioning shaft hole 525, the position accuracy of the suction head 810 and the through hole 5201 can be ensured, so that the suction head 810 can be accurately inserted into the through hole 5201.

As a preferred embodiment, the material moving assembly 80 is capable of driving at least the suction assembly 81 to move in the vertical direction and the horizontal direction. As shown in fig. 21, the material moving assembly 80 includes a third linear driver 800 and a fourth linear driver 801, the third linear driver 800 is used for driving the suction assembly 81 to move up and down, and the fourth linear driver 801 is used for driving the suction assembly 81 to move horizontally. Specifically, the third linear actuator 800 and the fourth linear actuator 801 may be, for example, a servo slide, an electric cylinder, an air cylinder, or a device having a linear driving function formed by combining a motor with a transmission assembly, or the like. In this embodiment, the third linear actuator 800 is a cylinder, and the fourth linear actuator 801 is a servo slide table.

The fourth linear actuator 801 is horizontally disposed and is connected to the third linear actuator 800 through a connection frame 802. The third linear actuator 800 is vertically disposed, and is connected to the suction assembly 81 through a sliding plate 803 slidably coupled to the connection frame 802 in a vertical direction, thereby driving the suction assembly 81 to move up and down. The link 802, the third linear actuator 800, the suction unit 81, and the like can be moved horizontally as a whole by the fourth linear actuator 801, thereby transferring the target 1 to another position.

As shown in fig. 23, a carrier 9 is provided in the moving range of the suction assembly 81, and the carrying mechanism 8 is capable of placing the sucked target pieces 1 into the carrier 9, and the number and positions of the placement positions on the carrier 9 are the same as those of the target pieces 1 sucked by the suction assembly 81, so that the sucked target pieces 1 can be transferred onto the carrier 9 all at once.

As shown in fig. 21, the punching mechanism 5 further includes a waste pipe 53 provided at the end of the material passage 5200 and a waste box 54 provided at the discharge port of the waste pipe 53, the waste box 54 being located below the punching mechanism 6. After removal from the material passage 5200, the tape 31 passes through the downwardly curved waste conduit 53 into the waste bin 54. Because the waste pipe 53 is bent downwards, the belt body 31 positioned at the discharge hole of the waste pipe 53 is acted by gravity when the feeding mechanism 6 feeds, so that a pulling force towards the punching mechanism 5 is applied to the material belt 3, and the material belt 3 can reliably enter the punching mechanism 5.

The invention also provides electrode assembly assembling equipment, which comprises the material belt feeding device, wherein the target piece 1 on the material belt 3 is taken down through the material belt feeding device and is orderly arranged on the carrier 9, so that the automation degree of the electrode assembly assembling equipment is improved, and the electrode assembly assembling efficiency is improved.

The foregoing is merely exemplary of the invention and other modifications can be made without departing from the scope of the invention.

Claims

1. A material strip feeding device, comprising:

the feeding mechanism (2) is used for placing a material belt (3), target pieces (1) and positioning holes (30) are arranged on the material belt (3) at equal intervals, and the target pieces (1) are arranged to be easily separated from the material belt (3);

a stage mechanism (4) provided with a guide passage (40) through which the material tape (3) passes;

a punching mechanism (5) which is arranged corresponding to the guide channel (40) and is used for receiving the material belt (3) guided out of the guide channel (40) and punching the target piece (1) from the material belt (3);

a feeding mechanism (6) for feeding the material strips (3) of equal length from the guide channel (40) into the punching mechanism (5); the method comprises the steps of,

and the material carrying mechanism (8) is used for moving the target piece (1) punched by the punching mechanism (5) out of the punching mechanism (5).

2. The web feeding device according to claim 1, wherein the carrier mechanism (4) comprises a carrier (41) and two oppositely arranged guide strips (42), the guide strips (42) being arranged at a distance from a carrying surface (410) of the carrier (41) to form the guide channel (40).

3. The web feeding device according to claim 2, characterized in that a distance slot (43) is formed between the two guide strips (42) for avoiding the target piece (1), the target piece (1) not being in contact with the guide strips (42);

the bearing surface (410) is provided with a dodging groove (411) for dodging the target member (1), and the target member (1) is not contacted with the bearing surface (410).

4. The web feeding device according to claim 2, characterized in that the feeding mechanism (6) comprises a first linear drive (60), a second linear drive (61) and a positioning column (62), the first linear drive (60) being used for driving the positioning column (62) to be inserted into the positioning hole (30), the second linear drive (61) being used for driving the positioning column (62) to move along the moving direction of the web (3).

5. The web feeding device according to claim 4, characterized in that the guide strip (42) is provided with a guide slot (420) provided in correspondence with the positioning hole (30), the guide slot (420) being provided extending along the direction of movement of the web (3), the positioning post (62) being slidingly fitted in the guide slot (420).

6. The material belt feeding device according to claim 4, wherein the feeding mechanism (6) further comprises a first limiting member (63) and a second limiting member (64) which are fixed relative to the carrying platform (41), and the first limiting member (63) and the second limiting member (64) are arranged at intervals along the moving direction of the material belt (3) and are respectively used for limiting two limit positions of the movement of the positioning column (62).

7. The material strip feeding device according to claim 1, wherein the punching mechanism (5) comprises a fixing frame (50), a driving device (51) and a die (52), wherein the driving device (51) is connected with the fixing frame (50), the die (52) comprises an upper die (520) which is relatively fixed with the fixing frame (50), a guide post (521) which is in sliding fit with the upper die (520) and a lower die (523) which is connected with the guide post (521), the upper die (520) is provided with a material channel (5200) corresponding to the guide channel (40), the lower die (523) is provided with a punching knife (5230) which is vertically arranged, and the driving device (51) is used for driving the lower die (523) to move towards the upper die (520) so as to punch a target piece (1) in the material channel (5200) from the material strip (3).

8. The web feeding device according to claim 7, wherein the die (52) further comprises a middle die (522) slidably coupled to the guide post (521) and an elastic member (524) elastically abutting between the lower die (523) and the middle die (522), the middle die (522) being provided with a pin (5220) corresponding to the positioning hole (30), and the pin (5220) being inserted into the positioning hole (30) when the middle die (522) is moved upward.

9. The web feeding device according to claim 7, characterized in that the upper die (520) is provided with through holes (5201) corresponding to the positions and the number of the target pieces (1) in the die (52), the handling mechanism (8) comprises a handling assembly (80) and a suction assembly (81), the suction assembly (81) comprises a suction head (810) for sucking the target pieces (1), and the handling assembly (80) is used for moving the suction head (810) into or out of the through holes (5201).

10. The web feeding device according to claim 9, wherein the transfer assembly (80) comprises a third linear driver (800) and a fourth linear driver (801), the third linear driver (800) being configured to drive the suction assembly (81) to move up and down, and the fourth linear driver (801) being configured to drive the suction assembly (81) to move horizontally.

11. The material tape feeding device according to claim 9, wherein the feeding mechanism (6) feeds N target pieces (1) to the punching mechanism (5) at a time, the punching mechanism (5) punches N target pieces (1) from the material tape (3) at a time, and the carrying mechanism (8) carries N target pieces (1) at a time.

12. The web feeding device according to any one of claims 1 to 11, further comprising a position detection assembly (70), the position detection assembly (70) detecting whether the web (3) is moved into position through a positioning hole (30) of the web (3);

the position detection assembly (70) comprises a correlation type photoelectric sensor, the correlation type photoelectric sensor comprises a transmitting end and a receiving end which are oppositely arranged on the upper side and the lower side of the material belt (3), and when the material belt (3) stops moving, if light rays of the correlation type photoelectric sensor pass through the positioning holes (30), the material belt (3) is indicated to move in place.

13. The web feeding device according to any one of claims 1 to 11, further comprising a material detection assembly (71), the material detection assembly (71) being adapted to detect the presence of a target piece (1) at a position on the web (3) for setting the target piece (1);

the feeding mechanism (6) feeds N target pieces (1) into the punching mechanism (5) at one time, N is an integer greater than or equal to 1, and the material belt feeding device comprises N material detection assemblies (71) for detecting the target pieces (1) at N adjacent positions; the material detection assembly (71) comprises a correlation type photoelectric sensor, the correlation type photoelectric sensor comprises a transmitting end and a receiving end which are oppositely arranged on the upper side and the lower side of the material belt (3), the transmitting end and the receiving end are aligned with the position of the material belt (3) for setting the target piece (1), and when the material belt (3) stops moving, and the light of the correlation type photoelectric sensor is blocked, the existence of the target piece (1) is indicated.

14. The web feeding device according to any one of claims 1 to 11, further comprising a tail detection assembly (73), the tail detection assembly (73) being provided at an inlet of the guide channel (40) for detecting the presence of the web (3) at the inlet;

the tailing detection assembly (73) comprises a correlation type photoelectric sensor, the correlation type photoelectric sensor comprises a transmitting end and a receiving end which are oppositely arranged on the upper side and the lower side of the material belt (3), the transmitting end and the receiving end are aligned with the entity part on the material belt (3), and when the material belt (3) stops moving, and the light rays of the correlation type photoelectric sensor are blocked, the existence of the material belt (3) is indicated.

15. The web feeding device according to any one of claims 1 to 11, wherein the target member (1) is a plate body (10) of an electrode assembly or an electrode (11).

16. An electrode assembly assembling apparatus comprising the web feeding device according to any one of claims 1 to 15.