CN221080078U - Flattening mechanism and flattening device - Google Patents

Abstract

The utility model relates to a flattening mechanism which comprises a supporting plate, a glue pressing head arranged on the supporting plate and a hot pressing assembly. The glue pressing head comprises a hot pressing cavity, a feeding port and a guide section communicated with the feeding port and the hot pressing cavity. The battery core which is welded by the collecting disc and stuck by the adhesive tape can be sent into the hot pressing cavity through the feeding hole and is abutted with the hot pressing head. The inner wall of the guide section is an inclined plane and has a guide function, so that the adhesive tape on the current collecting disc can be bent under the action of the inner wall of the guide section and gradually folded towards the middle part of the battery cell in the process of passing through the guide section. Further, under the supporting action of the hot pressing head, the adhesive tape is flattened on the collecting tray. Furthermore, the hot-pressing head can also generate heat to heat the adhesive tape, so that the adhesive tape is hot-pressed and ironed. Therefore, the flattening mechanism can reliably attach the adhesive tape to the current collecting disc and avoid warping, so that the attaching effect of the adhesive tape can be effectively improved. In addition, the utility model also provides a flattening device.

Description

Flattening mechanism and flattening device

Technical Field

The utility model relates to the technical field of battery equipment, in particular to a flattening mechanism and a flattening device.

Background

In the production process of the cylindrical battery, the current collecting disc is required to be rubberized after being welded, and the adhesive tape is required to be stably and effectively attached to the surface of the current collecting disc. The existing rubberizing mode is that after the adhesive tape is pasted on the current collecting disc, the battery core is clamped by the clamping jaw, and then the pressing block is pushed by the air cylinder to directly flatten the adhesive tape on the surface of the current collecting disc. However, since the adhesive tape is hard and brittle in texture, the adhesive tape tends to warp after being flattened by the pressing block, thereby making it impossible to completely adhere to the surface of the current collecting tray.

Disclosure of utility model

Accordingly, in order to solve the above-described problems, it is necessary to provide a flattening mechanism and a flattening device capable of improving the adhesive tape attaching effect.

A flattening mechanism comprises a supporting plate, a glue pressing head arranged on the supporting plate and a hot pressing assembly; the glue pressing head comprises a hot pressing cavity, a feeding port and a guide section communicated with the feeding port and the hot pressing cavity, and the guide section is gradually folded from the feeding port to the hot pressing cavity; the hot pressing assembly comprises a hot pressing head, and the hot pressing head can extend into the hot pressing cavity;

The electric core welded with the current collecting disc can enter the hot pressing cavity through the feeding port and is in butt joint with the hot pressing head, and in the process of passing through the guide section, the adhesive tape on the current collecting disc can be folded towards the middle part of the electric core under the action of the inner wall of the guide section.

In one embodiment, the hot press head is slidably mounted on the support plate, and the hot press assembly further includes a first driving member in driving connection with the hot press head, where the first driving member is capable of driving the hot press head to slide along the hot press cavity.

In one embodiment, the hot press assembly further comprises a heat insulation sleeve, and the heat insulation sleeve is sleeved on the periphery of the hot press head.

In one embodiment, the hot pressing head comprises a heat conducting member and a heating member, and the heating member is buried in the heat conducting member.

In one embodiment, the support plate is provided with a plurality of glue pressing heads arranged in parallel, and each glue pressing head is correspondingly provided with one hot pressing assembly.

The electric core which is welded by the collecting disc and stuck by the adhesive tape can be fed into the hot-pressing cavity through the feeding hole by the flattening mechanism and is abutted with the hot-pressing head. The inner wall of the guide section is an inclined plane and has a guide function, so that the adhesive tape on the current collecting disc can be bent under the action of the inner wall of the guide section and gradually folded towards the middle part of the battery cell in the process of passing through the guide section. Further, under the supporting action of the hot pressing head, the adhesive tape is flattened on the collecting tray. Furthermore, the hot-pressing head can also generate heat to heat the adhesive tape, so that the adhesive tape is hot-pressed and ironed. Therefore, the flattening mechanism can reliably attach the adhesive tape to the current collecting disc and avoid warping, so that the attaching effect of the adhesive tape can be effectively improved.

A flattening device, comprising:

a flattening mechanism as in any of the above preferred embodiments, said flattening mechanism being disposed on one side of the conveyor line;

the positioning mechanism is arranged on the other side of the conveying line opposite to the flattening mechanism;

the jacking mechanism is arranged between the flattening mechanism and the positioning mechanism, and can jack the battery cell transported along the conveying line to a position aligned with the feeding port; and

And the transfer mechanism can drive the flattening mechanism to move towards the positioning mechanism, so that the battery cell loaded on the jacking mechanism enters the hot-pressing cavity from the feeding hole, and the positioning mechanism can be matched with the hot-pressing head and tightly props against the battery cell.

In one embodiment, the positioning mechanism includes a push plate and a second driving member, where the second driving member can drive the push plate to move toward the flattening mechanism, and make the push plate support the electrical core against the thermal pressure head.

In one embodiment, the positioning mechanism further includes a pressing plate and a third driving member, where the third driving member can drive the pressing plate to move along the lifting direction of the lifting mechanism, so that the pressing plate presses the electric core to the lifting mechanism.

In one embodiment, the support plate is provided with a plurality of glue pressing heads arranged in parallel, the jacking mechanism comprises a fourth driving piece and a plurality of brackets arranged at intervals along the conveying direction of the conveying line, each bracket can bear a battery cell conveyed along the conveying line, the fourth driving piece can synchronously drive the brackets to lift, and the battery cells respectively borne on the brackets are aligned with the feed inlets of the glue pressing heads.

In one embodiment, the transfer mechanism includes a base and a fifth driving member, where the support plate is slidably mounted on the base, and the fifth driving member is in transmission connection with the support plate and is capable of driving the support plate to slide relative to the base.

According to the flattening device, the battery cells welded by the collecting disc and adhered by the adhesive tape are conveyed to the lower flattening device through the conveying line, the battery cells are jacked up by the jacking mechanism, and the flattening mechanism moves towards the positioning mechanism under the driving of the transfer mechanism, so that the battery cells jacked up by the jacking mechanism enter the hot pressing cavity through the feeding hole and are propped against the hot pressing head through the positioning mechanism. At this time, the flattening mechanism can be used for flattening the adhesive tape in a hot-pressing mode so as to reliably attach the adhesive tape to the current collecting disc. Then, the transfer mechanism drives the flattening mechanism to retract, the jacking mechanism descends and returns the battery cell to the conveying line, and the battery cell can be continuously transferred backwards along with the conveying line. Therefore, the flattening device can effectively improve production efficiency.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of a flattening device according to a preferred embodiment of the present utility model;

FIG. 2 is a top view of the flattening apparatus of FIG. 1;

FIG. 3 is a front view of the flattening mechanism of the flattening apparatus of FIG. 1;

FIG. 4 is a cross-sectional view of the applanation mechanism of FIG. 3;

FIG. 5 is a front view of a partial construction of a positioning mechanism of the flattening apparatus of FIG. 1;

FIG. 6 is a front view of a jacking mechanism of the flattening apparatus of FIG. 1;

Fig. 7 is a left side view of the jacking mechanism shown in fig. 6.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 and 2, a flattening device 10 and a flattening mechanism 100 are provided in the present utility model. The flattening device 10 includes a flattening mechanism 100, a positioning mechanism 200, a jacking mechanism 300, and a transfer mechanism 400.

After the cell 30 completes the current collecting tray welding and bonds the adhesive tape to the current collecting tray, the flattening device 10 is used to flatten the adhesive tape on the surface of the current collecting tray so that the adhesive tape is effectively attached to the current collecting tray. The conveyor line 20 is used for transporting the battery cells 30, which are subjected to current collecting tray welding and adhesive tape bonding, to the flattening device 10. In particular, the conveyor line 20 can connect various stations in the battery production process, such as a current collecting tray welding station, a tape taping station, and a flattening station. The battery cell 30 can sequentially pass through a current collecting disc welding station, an adhesive tape rubberizing station and a flattening station under the transportation of the conveying line 20, so that the welding and adhesive tape rubberizing of the current collecting disc are realized, and the adhesive tape can be flattened on the surface of the current collecting disc through the flattening device 10.

The flattening mechanism 100 is disposed on one side of the conveying line 20, and the positioning mechanism 200 is disposed on the other side of the conveying line 20 opposite to the flattening mechanism 100. That is, the flattening mechanism 100 and the positioning mechanism 200 are located on opposite sides of the conveyor line 20, respectively. The flattening mechanism 100 is disposed at a moving end of the transferring mechanism 400, and can be driven by the transferring mechanism 400 to approach or separate from the positioning mechanism 200. The jacking mechanism 300 is disposed between the flattening mechanism 100 and the positioning mechanism 200, and can jack up the battery cells 30 transported along the conveying line 20, so as to jack up the battery cells 30 from the conveying line 20.

Referring to fig. 3 and 4, the flattening mechanism 100 according to the preferred embodiment of the present utility model includes a support plate 110, a glue pressing head 120, and a hot pressing assembly 130.

The glue pressing head 120 and the hot pressing assembly 130 are both mounted on the supporting plate 110, and the supporting plate 110 is generally formed by metal materials, so that reliable support can be provided for the glue pressing head 120 and the hot pressing assembly 130, and the flattening mechanism 100 is convenient to mount. The glue pressing head 120 comprises a hot pressing cavity 121, a feeding hole 122 and a guiding section 123 communicated with the feeding hole 122 and the hot pressing cavity 121. The glue pressing head 120 may be a hollow cylindrical structure formed by metal, and the shape of the hot pressing cavity 121 is matched with that of the battery cell 30, and is generally cylindrical. Wherein, the guiding section 123 is gradually folded from the feeding hole 122 to the hot pressing cavity 121. That is, the inner diameter of the guide section 123 gradually decreases in a direction from the feed port 122 toward the hot press chamber 121.

The feeding port 122 of the glue pressing head 120 is arranged towards the positioning mechanism 200, and the battery cell 30 can enter the hot pressing cavity 121 through the feeding port 122. Moreover, the end of the battery cell 30, to which the current collecting disc is welded, faces the glue pressing head 120. Since the inner wall of the guiding section 123 is inclined, it has guiding function. In the process of passing through the guide section 123, along with the gradual folding of the guide section 123, the adhesive tape on the current collecting disc can be folded towards the middle part of the battery cell 30 under the action of the inner wall of the guide section 123, so that the edge of the adhesive tape can be placed to be tilted.

The thermo-compression assembly 130 includes a thermo-compression head 131, and the thermo-compression head 131 can extend into the thermo-compression cavity 121. The outer contour of the thermal ram 131 is adapted to the inner contour of the thermal chamber 121, and is generally cylindrical. Specifically, the end surface of the thermal head 131 faces the feed port 122, and is preferably a plane surface. The electric core 20 entering the hot pressing cavity 121 from the feeding port 122 can be abutted against the hot pressing head 131, specifically, the end face of the hot pressing head 131.

The heat pressing head 131 may be movably disposed or may be fixedly disposed in the heat pressing chamber 121. When the thermal pressing head 131 is movably disposed, an opening (not shown) is also disposed at an end of the thermal pressing head 120 away from the feeding opening 122 and is in communication with the thermal pressing cavity 121, and the thermal pressing head 131 can extend into or move out of the thermal pressing cavity 121 through the opening.

The thermal head 131 may be energized to generate heat. In particular, in the present embodiment, the thermal head 131 includes a heat conducting member 1311 and a heating member 1312, and the heating member 1312 is embedded in the heat conducting member 1311. The heating element 1312 may be a heating ceramic, a heating wire, or the like, and is capable of being energized to generate heat. The heat conducting member 1311 may be formed of a good conductor of heat such as metal, and after the heating member 1312 generates heat, the heat is conducted to the surface of the heat conducting member 1311, so that the surface temperature distribution of the thermal head 131 is more uniform.

In addition, in the present embodiment, the hot pressing assembly 130 further includes a heat insulation sleeve 133, and the heat insulation sleeve 133 is sleeved on the outer periphery of the hot pressing head 131. The thermal sleeve 133 does not completely cover the thermal head 131, and at least the end face of the thermal head 131 facing the feed port 122 is exposed. The insulating jacket 133 may be formed of a heat insulating material such as foam, and may prevent rapid heat dissipation, and help maintain the hot ram 131 at a high temperature.

After the current collecting tray is welded and the battery cell 30 adhered by the adhesive tape is transported to the lower flattening device 10, the battery cell 30 is lifted by the lifting mechanism 300 until the battery cell 30 is aligned with the feeding hole 122. Then, the flattening mechanism 100 is driven by the transfer mechanism 400 to move towards the positioning mechanism 200, and the battery cell 30 lifted by the lifting mechanism 300 enters the hot pressing cavity 121 from the feeding hole 122 until being abutted against the hot pressing head 131. Since the guiding section 123 has guiding function, the adhesive tape on the current collecting disc can be bent under the action of the inner wall of the guiding section 123 and gradually folded towards the middle part of the battery cell 30 in the process of passing through the guiding section 123.

In addition, the positioning mechanism 200 cooperates with the flattening mechanism 100 to press the battery cell 30 against the thermo-compression head 131. Under the holding action of the hot pressing head 131, the adhesive tape is flattened on the collecting tray. Further, the hot press head 131 can also generate heat to heat the adhesive tape, thereby hot-pressing the adhesive tape. Therefore, the adhesive tape can be reliably attached to the current collecting disc, and the warping is avoided.

After the adhesive tape and the collecting tray are flattened and attached, the transfer mechanism 400 drives the flattening mechanism 100 to retract, so that the battery cell 30 is withdrawn from the hot pressing cavity 121. Then, the jacking mechanism 300 descends and returns the battery cell 30 to the conveying line 20, and the battery cell 30 can be continuously transferred backwards along with the conveying line 20. Therefore, the complicated feeding and discharging operations of the battery cells 30 before and after flattening can be omitted, so that the production efficiency of the battery can be effectively improved.

It should be noted that, the flattening mechanism 100 may be used alone in other application scenarios. When the flattening mechanism 100 is used alone, the electric core 30 after completing the current collecting tray welding and tape bonding needs to be clamped by a feeding mechanical arm (not shown) and other mechanisms, and the electric core 30 is sent into the hot pressing cavity 121 from the feeding hole 122 and is abutted against the hot pressing head 131.

In this embodiment, the thermo-compression head 131 is slidably mounted on the support plate 110, and the thermo-compression assembly 130 further includes a first driving member 132 in transmission connection with the thermo-compression head 131, where the first driving member 132 can drive the thermo-compression head 131 to slide along the thermo-compression cavity 121.

The thermo-compression head 131 can move out of the thermo-compression cavity 121 or extend into the thermo-compression cavity 121 under the driving of the first driving member 132, so that the thermo-compression head 131 is convenient to maintain. Moreover, the hot pressing head 131 can also press the battery cell 30 entering the hot pressing cavity 121 under the driving of the first driving piece 132, so that the hot pressing head 131 can press the current collecting disc tightly, and the hot pressing effect on the adhesive tape is further improved.

Specifically, the first driving member 132 may also adopt a structure in which an air cylinder, an electric cylinder or a motor is matched with a threaded screw pair. The support plate 110 is provided with a first mounting plate 111 and a second mounting plate 112, the first mounting plate 111 is fixed on the support plate 110, and the second mounting plate 112 is slidably disposed on the support plate 110 in a manner of matching the sliding block with the guide rail. The glue pressing head 120 is fixedly mounted on the first mounting plate 111, and the hot pressing head 131 is fixed on the second mounting plate 112. The first driving member 132 can drive the first mounting plate 111 to slide along the support plate 110, thereby driving the thermo-compression head 131 to slide along the thermo-compression chamber 121.

It should be noted that, in other embodiments, the thermo-compression head 131 may also be fixedly disposed with respect to the support plate 110. At this time, the positioning mechanism 200 or the feeding manipulator applies pressure to the battery cell 30, which points to the thermal pressing head 131, so that the thermal pressing head 131 and the current collecting tray can be effectively abutted, and the thermal pressing is realized.

Referring to fig. 2 again, in the present embodiment, a plurality of glue pressing heads 120 are disposed on the supporting plate 110 in parallel, and each glue pressing head 120 is correspondingly provided with a heat pressing assembly 130. One electric core 30 can be fed into the hot pressing cavity 121 of each glue pressing head 120, and the hot pressing assembly 130 corresponding to the glue pressing head 120 can perform hot pressing operation on the electric core 30 entering the hot pressing cavity 121. That is, the flattening mechanism 100 can process a plurality of the battery cells 30 at the same time, so that the efficiency can be improved.

Correspondingly, referring to fig. 6 and fig. 7 together, in the present embodiment, the lifting mechanism 300 includes a fourth driving member 310 and a plurality of brackets 320 disposed at intervals along the conveying direction of the conveying line 20, each bracket 320 is capable of carrying a battery cell 30 conveyed along the conveying line 20, and the fourth driving member 310 is capable of synchronously driving the plurality of brackets 320 to lift and align the plurality of battery cells 30 respectively carried on the plurality of brackets 320 with the feed inlets 122 of the plurality of glue pressing heads 120.

Specifically, the fourth driving member 310 may be configured by a cylinder, an electric cylinder or a motor and a screw pair, and the plurality of brackets 320 may be mounted on the driving end of the fourth driving member 310 through the connection plate 330. Each of the brackets 320 is generally U-shaped and the conveyor line 20 is passed through a middle region of the bracket 320 so that the brackets 320 do not interfere with the conveyor line 20.

The arrangement direction of the plurality of glue heads 120 on the support plate 110 is also consistent with the conveying direction of the conveying line 20. After the battery cells 30 are transported to the lower flattening device 10, the fourth driving member 310 drives the plurality of brackets 320 to lift the plurality of battery cells 30 at the same time, and the plurality of battery cells 30 are aligned with the feed inlets 122 of the plurality of glue pressing heads 120 respectively. In this way, by matching the jacking mechanism 300 with the flattening mechanism 100, the flattening device 10 can perform hot-press ironing on the plurality of battery cells 30 at the same time, so that the production efficiency of the flattening device 10 is further improved.

Referring to fig. 5, in the present embodiment, the positioning mechanism 200 includes a pushing plate 210 and a second driving member 220, and the second driving member 220 can drive the pushing plate 210 to move toward the flattening mechanism 100, so that the pushing plate 210 abuts the electrical core 30 against the thermo-compression head 131.

While the flattening mechanism 100 moves towards the positioning mechanism 200, the second driving piece 220 can simultaneously drive the push plate 210 to move towards the flattening mechanism 100, so that the push plate 210 supports the battery cell 30 against the hot pressing head 131 to limit the battery cell 30 along the axial direction (i.e. the horizontal direction in the actual working scene), so that the battery cell 30 can be kept stable in the hot pressing process, and the battery cell 30 can be kept against the hot pressing head 131.

Specifically, the second driving member 220 may employ an air cylinder, and the pushing plate 210 is disposed to face the surface of the flattening mechanism 100 in a plane, so that the contact area with the battery cell 30 can be increased.

It should be noted that, in other embodiments, the positioning mechanism 200 may also adopt a plate-like or block-like structure that is fixedly disposed, and when the jacking mechanism 300 jacks up the battery cell 30, the positioning mechanism 200 can abut against an end of the battery cell 30 away from the flattening mechanism 100 to limit the battery cell 30.

Further, in the present embodiment, the positioning mechanism 200 further includes a pressing plate 230 and a third driving member 240, and the third driving member 240 can drive the pressing plate 230 to move along the lifting direction of the jacking mechanism 300, so that the pressing plate 230 presses the battery cell 30 to the jacking mechanism 300.

While the pushing plate 210 supports the battery cell 30 against the hot pressing head 131 to limit the battery cell 30 along the axial direction, the third driving piece 240 can also drive the pressing plate 230 to press the battery cell 30 against the jacking mechanism 300, so as to limit the battery cell 30 along the lateral direction (i.e., the vertical direction in the actual working scene). So, positioning mechanism 200 is better to the spacing effect of electric core 30, can avoid electric core 30 to take place the displacement in follow-up operation in-process effectively to guarantee the effect of hot pressing ironing.

The positioning mechanism 200 further generally includes a support 250 (see fig. 1), and the push plate 210, the second driving member 220, the pressing plate 230, and the third driving member 240 are all mounted on the support 250. In order to maintain the stability of the structure and the position of the lifting mechanism 300, the lifting mechanism 300 may be mounted on the support frame 250.

It should be noted that, since the jacking mechanism 300 in this embodiment includes a plurality of brackets 320 disposed at intervals along the conveying direction of the conveying line 20, and can jack up a plurality of battery cells 20 at the same time, the push plate 210 and the pressing plate 230 are also disposed in a plurality of positions and are disposed at intervals along the conveying direction of the conveying line 20, so as to limit the plurality of battery cells 20.

Referring to fig. 1 again, in the present embodiment, the transfer mechanism 400 includes a base 410 and a fifth driving member 420, the support plate 110 is slidably mounted on the base 410, and the fifth driving member 420 is in transmission connection with the support plate 110 and is capable of driving the support plate 110 to slide relative to the base 410.

The support plate 110 may be mounted on the base 410 by means of a rail and a slider, and the support plate 110 may be moved closer to or further away from the positioning mechanism 200 by sliding along the base 410. The fifth driving member 420 may also adopt a structure in which an air cylinder, an electric cylinder or a motor is matched with a threaded screw pair. Because of the support provided by the base 410, the flattening mechanism 100 is more stable during movement.

The above-mentioned flattening device 10 and flattening mechanism 100, the electric core 30 that completes the welding of the current collecting tray and the tape pasting is transported to the lower flattening device by the conveyor line 20, the electric core 30 is jacked up by the jacking mechanism 300 first, the flattening mechanism 100 moves towards the positioning mechanism 200 under the driving of the transfer mechanism 400, so that the electric core 30 jacked up by the jacking mechanism 300 enters the hot pressing cavity 121 from the feed inlet 122 and is supported against the hot pressing head 131 by the positioning mechanism 200. Because the inner wall of the guiding section 123 is an inclined plane, the guiding function is achieved, so that the adhesive tape on the current collecting disc can be bent under the action of the inner wall of the guiding section 123 and gradually folded towards the middle part of the battery cell 30 in the process of passing through the guiding section 123. Further, the adhesive tape is flattened on the collecting tray under the supporting action of the hot pressing head 131. Furthermore, the thermal pressing head 131 can also generate heat to heat the adhesive tape, thereby thermally pressing the adhesive tape. Therefore, the adhesive tape can be reliably attached to the current collecting disc and can be prevented from tilting, so that the attaching effect of the adhesive tape is effectively improved.

When the flattening mechanism 100 presses the adhesive tape by hot pressing to reliably attach the adhesive tape to the collecting tray, the transfer mechanism 400 drives the flattening mechanism 100 to retract, the jacking mechanism 300 descends and returns the battery cell 30 to the conveying line 20, and the battery cell 30 can be transferred backwards along with the conveying line 20. Thus, the production efficiency can be effectively improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A flattening mechanism (100) is characterized by comprising a supporting plate (110), a glue pressing head (120) arranged on the supporting plate (110) and a hot pressing assembly (130); the glue pressing head (120) comprises a hot pressing cavity (121), a feeding hole (122) and a guide section (123) which is communicated with the feeding hole (122) and the hot pressing cavity (121), wherein the guide section (123) is gradually folded from the feeding hole (122) to the hot pressing cavity (121); the hot pressing assembly (130) comprises a hot pressing head (131), and the hot pressing head (131) can extend into the hot pressing cavity (121);

The electric core (30) welded with the current collecting disc can enter the hot pressing cavity (121) from the feeding hole (122) and is abutted to the hot pressing head (131), and in the process of passing through the guide section (123), the adhesive tape on the current collecting disc can be folded towards the middle part of the electric core (30) under the action of the inner wall of the guide section (123).

2. The flattening mechanism (100) of claim 1, wherein the thermal compression head (131) is slidably mounted to the support plate (110), the thermal compression assembly (130) further comprising a first drive member (132) drivingly connected to the thermal compression head (131), the first drive member (132) being capable of driving the thermal compression head (131) to slide along the thermal compression chamber (121).

3. The flattening mechanism (100) of claim 1, wherein the hot press assembly (130) further comprises a thermal sleeve (133), the thermal sleeve (133) being sleeved around the periphery of the hot press head (131).

4. The flattening mechanism (100) of claim 1, wherein the thermal compression head (131) includes a thermally conductive member (1311) and a heating member (1312), the heating member (1312) being embedded within the thermally conductive member (1311).

5. The flattening mechanism (100) of any of claims 1-4, wherein a plurality of said glue heads (120) are disposed in parallel on said support plate (110), and each of said glue heads (120) is correspondingly provided with a said hot press assembly (130).

6. A flattening device, comprising:

The applanation mechanism (100) of any one of the preceding claims 1 to 5, said applanation mechanism (100) being arranged on one side of a conveyor line (20);

The positioning mechanism (200) is arranged on the other side of the conveying line (20) opposite to the flattening mechanism (100);

The jacking mechanism (300) is arranged between the flattening mechanism (100) and the positioning mechanism (200), and the jacking mechanism (300) can jack the battery cells (30) conveyed along the conveying line (20) to a position aligned with the feeding port (122); and

The transfer mechanism (400) can drive the flattening mechanism (100) to move towards the positioning mechanism (200) and enable the battery cell (30) borne on the jacking mechanism (300) to enter the hot-pressing cavity (121) from the feeding port (122), and the positioning mechanism (200) can be matched with the hot-pressing head (131) and abutted against the battery cell (30).

7. The flattening apparatus of claim 6, wherein the positioning mechanism (200) includes a push plate (210) and a second driving member (220), the second driving member (220) being capable of driving the push plate (210) to move toward the flattening mechanism (100) and causing the push plate (210) to hold the electrical core (30) against the thermo-compression head (131).

8. The flattening device according to claim 7, wherein the positioning mechanism (200) further comprises a pressing plate (230) and a third driving member (240), wherein the third driving member (240) is capable of driving the pressing plate (230) to move along a lifting direction of the jacking mechanism (300), so that the pressing plate (230) presses the battery cell (30) to the jacking mechanism (300).

9. The flattening apparatus according to claim 6, wherein the support plate (110) is provided with a plurality of glue pressing heads (120) arranged in parallel, the jacking mechanism (300) includes a fourth driving member (310) and a plurality of brackets (320) arranged at intervals along the conveying direction of the conveying line (20), each bracket (320) can carry a conveyed electric core (30) along the conveying line (20), the fourth driving member (310) can synchronously drive the plurality of brackets (320) to lift, and align the plurality of electric cores (30) respectively carried on the plurality of brackets (320) with the feeding ports (122) of the plurality of glue pressing heads (120).

10. The flattening apparatus of claim 6, wherein the transfer mechanism (400) includes a base (410) and a fifth drive member (420), the support plate (110) is slidably mounted to the base (410), and the fifth drive member (420) is in driving connection with the support plate (110) and is capable of driving the support plate (110) to slide relative to the base (410).