Cylindrical battery cell rubber coating equipment

Abstract

The invention discloses cylindrical battery cell rubber coating equipment which comprises an equidistant transfer conveying line, a rubber sticking station and a rubber pressing station, the rubberizing station comprises a rubberizing mechanism, a positioning mechanism and a rubberizing mechanism; the glue pressing station comprises an end face glue pressing mechanism. After the battery cell is transferred to a rubberizing station by the equidistant transfer conveying line, a fixed-length adhesive tape is pulled out through the adhesive discharging mechanism, the battery cell is centered and positioned up and down and front and back through the positioning mechanism, and the adhesive tape is pasted on the circumferential wall of the battery cell through the rubberizing mechanism; then, the battery cell is transferred to an adhesive pressing station, and adhesive pressing actions are respectively performed on the adhesive tape on the circumferential wall of the battery cell for three times through a first edge folding pressure head, a second edge folding pressure head and an adhesive beating pressure head in sequence, so that the adhesive tape is flatly pressed and adhered to the end surface of the battery cell. The equipment can adjust the distance of the adhesive tape exceeding the end face of a battery cell, the minimum winding length of the adhesive tape and the width of the adhesive tape, and ensures the accuracy of important production parameters; and after three times of adhesive pressing actions, the adhesive tape is ensured to be flatly adhered to the end surface of the battery cell without wrinkles and bubbles, and the yield is high.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery cell production, and in particular to a cylindrical battery cell encapsulation device. Background Art

[0002] Please refer to the instruction manual Figure 1 In the production process of cylindrical batteries, the tape wrapping process plays a vital role. By wrapping the battery cell 100 with glue, it is ensured that the battery will not have an internal short circuit during the charging and discharging process. At the same time, the tape 101 wrapped on the battery cell 100 can also play a role in positioning and buffering, reducing the risk of internal battery failure.

[0003] In the cell wrapping tape process, there are strict requirements for the three production parameters: the distance of the tape beyond the cell end face (C1), the minimum winding length of the tape (C2), and the width of the tape (C3). In particular, the distance of the tape beyond the cell end face (C1) must be accurately controlled. However, the traditional cell wrapping tape equipment still has the following defects when operating under actual working conditions:

[0004] 1) During the production line, the positioning of the battery cells in the up, down, front and back directions is inaccurate, and there is a lack of alignment procedures, which results in the inability to accurately adjust the important production parameter C1, resulting in a low pass rate for the encapsulated products;

[0005] 2) Traditional battery cell encapsulation equipment is prone to wrinkles or bubbles, poor encapsulation consistency, and may even produce defective products.

[0006] 3) Traditional battery cell encapsulation equipment only performs a single press on the tape, which cannot guarantee the fit between the tape and the end face of the battery cell after pressing, and is prone to producing defective products. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a cylindrical battery cell encapsulation device to overcome the deficiencies in the prior art.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A cylindrical battery cell glue encapsulation device comprises an equidistant transfer conveyor line and a glue sticking station, wherein the glue sticking station comprises a frame and a glue placing mechanism, a positioning mechanism and a glue sticking mechanism arranged on the frame.

[0010] The equidistant transfer conveyor line comprises a plurality of equidistantly arranged brackets, on which the battery cells to be encapsulated are loaded transversely, and the brackets are stepped in equidistantly in sequence;

[0011] The glue releasing mechanism comprises a glue roll, a glue releasing jaw and a glue pulling jaw arranged on one side of the bracket; one end of the adhesive tape on the glue roll is pulled to the glue releasing jaw arranged next to the battery cell, and the glue releasing jaw clamps the adhesive tape so that one end of the adhesive tape is exposed; the glue pulling jaw extends out to clamp the end of the adhesive tape on the glue releasing jaw, and when the glue pulling jaw retracts, the adhesive tape is pulled out quantitatively;

[0012] The positioning mechanism includes a lifting and centering assembly arranged below the bracket and a driving wheel arranged above the bracket; the lifting and centering assembly includes a pair of supporting wheels and two sets of centering pressure heads, the supporting wheels lift the battery cell and detach it from the bracket, and the centering pressure heads clamp the battery cell from both ends to center the battery cell;

[0013] The glue sticking mechanism comprises a glue cutting tool and a smoothing sponge block arranged side by side on a glue cutting slide, the glue cutting tool is located between a glue placing clamp and a glue pulling clamp, and the glue cutting tool is located above the pulled tape, the smoothing sponge block is located between the glue placing clamp and the glue pulling clamp and above the circumferential wall of the battery cell, and the smoothing sponge block has an arc surface matching the circumferential wall of the battery cell.

[0014] Furthermore, a cylindrical battery cell encapsulation equipment in this case also includes a glue pressing station arranged in the process below the glue sticking station, and the glue pressing station includes an end face glue pressing mechanism arranged on the frame; the end face glue pressing mechanism includes a glue pressing lifting assembly, a reference side axial slide, a floating side axial slide, a transverse slide, a reference side glue pressing assembly, and a floating side glue pressing assembly;

[0015] The glue pressing and lifting assembly comprises a lifting support plate arranged below the battery core;

[0016] The reference side axial slide and the floating side axial slide are relatively arranged at the two ends of the battery cell, and both can make reciprocating motion along the axial direction of the battery cell under the drive of the cylinder; the reference side glue pressing assembly is installed on the reference side axial slide and reciprocates with the reference side axial slide, and the floating side glue pressing assembly is installed on the floating side axial slide and reciprocates with the floating side axial slide;

[0017] The reference side axial slide is installed on the transverse slide and follows the transverse slide to make transverse reciprocating motion under the drive of the cylinder;

[0018] The floating side glue pressing assembly comprises a floating side top core;

[0019] The reference side glue pressing assembly includes a first folding press head, a second folding press head and a glue pressing head arranged on a switching seat; the first folding press head is inserted into the second folding press head; the glue pressing head and the second folding press head are fixedly arranged side by side on the switching seat.

[0020] Furthermore, the switching seat is installed on the reference side axial slide and reciprocates with the reference side axial slide; the second folding press head is fixedly installed on the switching seat, and the second folding press head and the switching seat have a coaxial through assembly cavity, and a glue reset spring is arranged in the assembly cavity; the first folding press head is located in the assembly cavity, the inner end of the first folding press head is connected to the glue reset spring, and the outer end of the first folding press head is exposed outside the second folding press head.

[0021] Furthermore, a plurality of circumferentially evenly distributed arcuate guide blocks are arranged on the outer end surface of the first folding press head, and the arcuate surfaces of the arcuate guide blocks protrude toward the center direction of the first folding press head.

[0022] Furthermore, the end face glue pressing mechanism also includes a battery cell pressing assembly, and the battery cell pressing assembly includes a pressing slide driven by a pressing cylinder, and a pressing block is arranged on the pressing slide.

[0023] Preferably, the end portion of the rubber pressing head is provided with a rubber head.

[0024] Preferably, four groups of lifting plates are provided in total.

[0025] Preferably, a floating glue pulling component is also provided on the glue pulling slide, and the floating glue pulling component has a floating spring built in, one end of the floating spring is connected to the glue pulling slide, and the other end is connected to the glue pulling clamp.

[0026] Preferably, the glue placing mechanism also includes a plurality of guide wheels.

[0027] Preferably, the lifting plate is driven by a glue-pressing lifting cylinder.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1) In this case, a cylindrical battery cell encapsulation equipment can adjust the distance C1 of the tape beyond the end face of the cell by fine-tuning the position of the centering pressure head in the positioning mechanism and the installation position of the tape roll and guide wheel in the glue release mechanism. The minimum winding length C2 of the tape can be adjusted by adjusting the spacing between the glue pulling clamp and the glue releasing clamp and the retraction limit position of the glue pulling clamp. The tape width C3 can be adjusted by replacing different types of tape rolls and corresponding tape guide wheels, ensuring that the production parameters are accurate and adjustable, and the qualified rate of the products after encapsulation is high.

[0030] 2) In this case, a cylindrical battery cell encapsulation equipment is used. At the gluing station, the glue releasing process of the glue releasing mechanism and the gluing process of the glue sticking mechanism are carried out synchronously without interfering with each other. The glue releasing mechanism and the glue sticking mechanism operate simultaneously like dual threads with a compact operation rhythm, which effectively improves the encapsulation efficiency.

[0031] 3) In this case, a cylindrical battery cell glue encapsulation equipment performs glue pressing actions on the adhesive on the circumferential wall of the cell three times in succession through the first folding edge press head, the second folding edge press head and the glue taping press head at the glue pressing station, so as to avoid problems such as the tape on the end face of the cell lifting and debonding due to adhesion between the adhesive surfaces of the tape, so that the tape is pressed flatly and adhered to the end face of the cell without wrinkles or bubbles, and the yield rate is high.

[0032] 4) In this case, a cylindrical battery cell encapsulation equipment is used. All linkage functions are centrally controlled by the equipment PLC, and relevant data is uploaded to MES. It has a high degree of automation and precise motion control.

[0033] In order to more clearly understand the present invention, preferred embodiments of the present invention will be described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the battery cell and the location of the rubber package in the background technology of the present invention;

[0035] Figure 2 It is a schematic diagram of the overall structure of the glue sticking station in the present invention;

[0036] Figure 3 for Figure 2 A magnified view of position A in the middle;

[0037] Figure 4 for Figure 3 Schematic diagram of the structure at different angles of view at position A in the middle;

[0038] Figure 5 for Figure 4 A magnified view of position B in the middle;

[0039] Figure 6 It is a schematic diagram of the overall structure of the glue pressing station in the present invention;

[0040] Figure 7 It is a schematic diagram of the structure of the glue pressing station at the upper end of the frame in the present invention;

[0041] Figure 8 It is a structural schematic diagram of the reference side glue pressing component in the present invention;

[0042] Fig. 9 for Figure 8 A cross-sectional view of the middle reference side glue assembly;

[0043] Fig.10 It is a schematic diagram of the structure of the rubber pressure lifting assembly in the present invention.

[0044] Figure ID

[0045] Gluing station:

[0046] 10-film roll, 11-guide wheel, 12-glue release clamp, 13-glue pulling clamp, 14-adhesive tape, 15-floating glue pulling assembly; 20-driving wheel, 21-supporting wheel, 22-centering pressure head; 30-glue cutting slide, 31-glue cutting tool, 32-smoothing sponge block;

[0047] Gluing station:

[0048] 40-lifting support plate, 41-reference side axial slide, 42-floating side axial slide, 43-lateral slide; 50-first folding head, 51-second folding head, 52-glue pressing head, 54-switching seat, 55-glue pressing return spring, 501-arc guide block; 60-clamping slide, 61-clamping block;

[0049] 100 - battery cell in the background technology, 101 - tape in the background technology; C1 - distance of the tape beyond the end face of the battery cell, C2 - minimum winding length of the tape, C3 - width of the tape. DETAILED DESCRIPTION

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0051] In addition, if there are terms such as "first" and "second", they are only used for descriptive purposes, mainly to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components, and cannot be understood as indicating or implying relative importance.

[0052] In addition, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements; for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] Please also see Figure 2-10The present invention provides a cylindrical battery cell glue encapsulation equipment, including an equidistant transfer conveyor line, a glue sticking station and a glue pressing station arranged in the process below the glue sticking station; the glue sticking station includes a frame and a glue placing mechanism, a positioning mechanism and a glue sticking mechanism arranged on the frame; the glue pressing station includes an end face glue pressing mechanism arranged on the frame.

[0054] Please also see Figure 2-5 , an equidistant transfer conveyor line includes a plurality of equidistantly arranged brackets (not shown), on which the battery cells 100 to be encapsulated are horizontally loaded; the brackets step forward at equal intervals in sequence, so that the battery cells 100 on the brackets enter the glue sticking station in sequence.

[0055] The glue releasing mechanism comprises a film roll 10, a plurality of guide wheels 11, a glue releasing jaw 12 and a glue pulling jaw 13 arranged on one side of a bracket; one end of the adhesive tape 14 on the film roll 10 is guided by the plurality of guide wheels 11 and then pulled to the glue releasing jaw 12 arranged next to the battery cell 100, and the glue releasing jaw 12 clamps the adhesive tape 14 and exposes one end of the adhesive tape 14; the glue pulling jaw 13 and the glue releasing jaw 12 are arranged on both sides of the battery cell 100 relatively, and the glue pulling jaw 13 is arranged on a glue pulling slide, and is driven by the glue pulling servo slide to make a quantitative reciprocating motion, and the glue pulling jaw 13 is extended to clamp the end of the adhesive tape 14 on the glue releasing jaw 13, and when the glue pulling jaw 13 is retracted, the adhesive tape 14 is quantitatively pulled out to form a fixed length of adhesive tape for wrapping the battery cell 100.

[0056] Furthermore, a floating glue pulling component 15 is provided on the glue pulling slide, and the floating glue pulling component 15 has a floating spring built in. One end of the floating spring is connected to the glue pulling slide, and the other end is connected to the glue pulling clamp 13. Under the action of the floating glue pulling component 15, the adhesive tape 14 pulled out by the adhesive pulling clamp 13 always maintains an elastic tension state, thereby ensuring that the adhesive tape 14 can be flatly attached to the circumferential surface of the battery cell 100 without generating wrinkles or bubbles when sticking glue.

[0057] A positioning mechanism, which includes a lifting and centering assembly arranged below the bracket and a driving wheel 20 arranged above the bracket;

[0058] The lifting and centering assembly includes a U-shaped pallet not shown in the figure, two sets of supporting wheels 21 are arranged oppositely on the inner side of the U-shaped pallet, and two sets of centering pressure heads 22 are arranged oppositely on the outer side of the U-shaped pallet, and the two sets of centering pressure heads include a reference side centering pressure head and a floating side centering pressure head (the reference side is the side of the battery cell with the pole ear, and the floating side is the side of the battery cell without the pole ear); the rubber-coated lifting cylinder drives the U-shaped pallet to rise synchronously, and a pair of supporting wheels 21 lifts the battery cell 100 placed flat on the bracket from the bottom, so that the battery cell 100 is separated from the bracket, and the U-shaped pallet is lifted to the battery cell 10 0 contacts the rubber ring on the circumferential wall of the driving wheel 20; during the lifting process, and before the circumferential wall of the battery cell 100 contacts the rubber ring of the driving wheel 20, the centering cylinder drives the centering pressure head 22 to press the battery cell 100 from both ends, so that the battery cell 100 is centered on the supporting wheel 21; the driving wheel 20 is driven by a rotating motor, and when the driving wheel 20 rotates, it can drive the battery cell 100 on the supporting wheel 21 to rotate circumferentially; the positioning mechanism positions the battery cell 100 on the supporting wheel 21 in the up-down and forward-backward directions, so as to facilitate the next step of gluing.

[0059] The glue sticking mechanism includes a glue cutting tool 31 and a smoothing sponge block 32 which are arranged side by side on the glue cutting slide 30. The glue cutting tool 31 is located between the glue releasing jaw 12 and the glue pulling jaw 13, and the glue cutting tool 31 is located above the pulled tape. The smoothing sponge block 32 is located between the glue releasing jaw 12 and the glue pulling jaw 13 and above the circumferential wall of the battery cell 100. The smoothing sponge block 32 has a curved surface matching the circumferential wall of the battery cell 100.

[0060] The working principle of the gluing mechanism is as follows: during the gluing process, after the glue cutting tool 31 descends to cut the tape, the battery cell 100 is also positioned on the supporting wheel 21, and the driving wheel 20 drives the battery cell 100 to rotate on the supporting wheel 21. At the same time, the smoothing sponge block 32 also descends and presses one end of the cut tape and sticks it to the circumferential wall of the battery cell 100. As the driving wheel 20 drives the battery cell 100 to rotate, the cut fixed-length tape is gradually wound and stuck to the circumferential wall of the battery cell 100, thereby completing the gluing process; after the gluing process is completed, the glue-wrapped lifting cylinder drives the U-shaped pallet to descend, and the battery cell 100 is reloaded onto the bracket, and the equidistant transfer conveyor line shifts the battery cell 100 to the gluing station of the subsequent process, and the battery cell 100 will complete the end face gluing work at the gluing station.

[0061] Please also see Figure 6-10 The end face glue pressing mechanism includes a glue pressing lifting assembly, a reference side axial slide 41, a floating side axial slide 42, a lateral slide 43, a reference side glue pressing assembly, a floating side glue pressing assembly and a battery cell pressing assembly.

[0062] The glue pressing lifting assembly includes a lifting support plate 40 driven by a glue pressing lifting cylinder, and the lifting support plate 40 is used to lift and hold up the battery cell 100 transferred from the previous process and already glued on the circumferential wall;

[0063] Preferably, in the present embodiment, four groups of lifting plates 40 are provided, and the four groups of lifting plates 40 can lift four battery cells 100 at the same time.

[0064] The reference side axial slide 41 and the floating side axial slide 42 are relatively arranged at both ends of the battery cell 100, and both can make reciprocating motion along the axial direction of the battery cell 100 under the drive of the cylinder; the reference side glue pressing component is installed on the reference side axial slide 41 and reciprocates with the reference side axial slide 41, and the floating side glue pressing component is installed on the floating side axial slide 42 and reciprocates with the floating side axial slide 42;

[0065] The reference side axial slide 41 is installed on the transverse slide 43, and reciprocates with the transverse slide 43 under the drive of the cylinder, so that the reference side glue pressing assembly installed on the reference side axial slide 41 can switch between the pressure head and the racket head by lateral movement; it should be understood that the reference side axial slide 41 can reciprocate along the axial direction of the battery cell 100, and can also reciprocate laterally to switch between the pressure head and the racket head.

[0066] The floating side glue pressing assembly includes a floating side top core, and the floating side top core can support the battery cell 100 from the floating side.

[0067] The reference side glue pressing assembly includes a first folding press head 50, a second folding press head 51 and a glue pressing head 52 arranged on a switching seat 54;

[0068] The switching seat 54 is installed on the reference side axial slide 41 and reciprocates with the reference side axial slide 41;

[0069] The second folding press head 51 is fixedly mounted on the switching seat 54, and the second folding press head 51 and the switching seat 54 have a coaxial through-fitting cavity, and a glue-pressing return spring 55 is arranged in the assembling cavity;

[0070] The first folding head 50 is inserted into the second folding head 51 and is located in the assembly cavity. The inner end of the first folding head 50 is connected to the glue return spring 55, and the outer end of the first folding head 50 is exposed outside the second folding head 51, so that the first folding head 50 contacts the tape 14 on the battery cell 100 before the second folding head 51; under the action of the glue return spring 55, the first folding head 50 can be extended and retracted in the second folding head 51; it should be understood that the first folding head 50 is limited to ensure that it will not fall off from the second folding head 51;

[0071] Furthermore, a plurality of circumferentially evenly distributed arc guide blocks 501 are provided on the outer end surface of the first folding press head 50, and the arc surface of the arc guide block 501 protrudes toward the center direction of the first folding press head 50; under the guiding action of the arc guide block 501, when the first folding press head 50 presses the tape 14 wrapped around the circumferential wall of the battery cell 100, the tape 14 is naturally folded toward the center direction of the battery cell 100;

[0072] The glue pressing head 52 and the second folding edge pressing head 51 are fixedly arranged side by side on the switching seat 54, and the end portion of the glue pressing head 52 is provided with a rubber head; driven by the lateral movement of the lateral slide 43, the second folding edge pressing head 51 and the glue pressing head 52 on the switching seat 54 can be switched alternately laterally, and according to production needs, they are aligned with the axis of the battery cell 100 and press the tape 14 in turn.

[0073] The battery cell clamping assembly includes a clamping slide 60 driven by a clamping cylinder, and a clamping block 61 is arranged on the clamping slide 60; the clamping slide 60 reciprocates up and down with the clamping block 61 and presses the battery cell 100 to prevent the battery cell 100 from shifting on the lifting pallet 40 due to the viscosity of the tape when the first folding head 50 or the second folding head 51 or the glue pressing head 52 retracts, thereby ensuring that the battery cell 100 dropped into the bracket can be accurately transferred to the subsequent process.

[0074] The working principle or operation process of the end face glue pressing mechanism is:

[0075] 1. The equidistant transfer conveyor line transfers the battery cell 100 from the gluing station to the gluing station;

[0076] 2. The lifting plate 40 in the glue-pressing lifting assembly lifts the battery cell 100 from the bracket and positions it;

[0077] 3. The reference side pressing glue assembly and the floating side pressing glue assembly on the slide are fed to both ends of the battery cell 100 at the same time;

[0078] 4. The first folding press head 50 first bends the tape toward the center of the battery cell, and the glue pressing reset spring 55 is compressed to make the first folding press head 50 retract into the second folding press head 51, completing the first glue pressing action (i.e., the tape folding action);

[0079] 5. The folded tape is pressed by the second folding press head 51 and adhered to the end surface of the battery cell, and then the reference side pressing assembly and the floating side pressing assembly return to reset, completing the second pressing action;

[0080] 6. The lateral slide 43 moves to make the switch seat 54 move horizontally, so that the glue pressing head 52 moves horizontally to the position facing the battery cell, completing the pressing head switching;

[0081] 7. The reference side glue pressing assembly and the floating side glue pressing assembly are fed to both ends of the battery cell 100 at the same time again, and the glue pressing head 52 presses the folded edge tape onto the end surface of the battery cell again, completing the third glue pressing action. Since the end of the glue pressing head 52 is a soft rubber head, the tape is tightly and firmly pressed onto the end surface of the battery cell;

[0082] 8. The cell pressing assembly presses the cell 100, the reference side pressing assembly and the floating side pressing assembly retreat and reset, and the pressing head 52 retreats and resets, completing the cell end face pressing process;

[0083] 9. The glue pressing and lifting assembly action lowers the battery cell into the bracket of the equidistant transfer conveyor line, and the battery cell continues to be transferred to the subsequent process.

[0084] Furthermore, it should be understood that, in the present embodiment, the glue releasing process of the glue releasing mechanism and the glue applying process of the glue applying mechanism are carried out synchronously without interfering with each other. Specifically, the glue pulling action can be started only after the adhesive tape has been wrapped around the battery cell and the lifting and centering assembly has been lowered, so that the glue releasing mechanism and the glue applying mechanism operate simultaneously like two threads with a compact operation rhythm, thereby effectively improving the glue encapsulation efficiency.

[0085] At the same time, it is important to understand that during the gluing process,

[0086] A. One of the production parameters is the distance C1 that the tape extends beyond the end face of the battery cell. This parameter can be adjusted by fine-tuning the position of the centering pressure head in the positioning mechanism and the installation position of the tape roll and guide wheel in the glue release mechanism;

[0087] B. The minimum winding length C2 of the adhesive tape, which is the second production parameter, can be adjusted by adjusting the distance between the adhesive pulling jaw and the adhesive releasing jaw and the retraction limit position of the adhesive pulling jaw;

[0088] C. The third production parameter is the tape width C3, which can be adjusted by replacing different types of film and the corresponding tape guide wheel.

[0089] Furthermore, it should be understood that in this embodiment, during the gluing process, when gluing the battery cell, the inward folded width of the tape for gluing the battery cell end face is also the distance C1 that the tape in the previous process exceeds the battery cell end face. This parameter is adjusted and determined by the gluing process.

[0090] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A cylindrical battery cell encapsulation equipment, comprising an equidistant transfer conveyor line and an adhesive laminating station, wherein the adhesive laminating station comprises a frame and an adhesive placing mechanism, a positioning mechanism and an adhesive laminating mechanism arranged on the frame, and is characterized in that: The equidistant transfer conveyor line comprises a plurality of equidistantly arranged brackets, on which the battery cells (100) to be encapsulated are loaded transversely, and the brackets are stepped in equidistantly in sequence; The glue releasing mechanism comprises a glue roll (10), a glue releasing clamp (12) and a glue pulling clamp (13) arranged on one side of the bracket; one end of the adhesive tape (14) on the glue roll (10) is pulled onto the glue releasing clamp (12) arranged next to the battery cell (100); the glue releasing clamp (12) clamps the adhesive tape (14) and exposes one end of the adhesive tape (14); the glue pulling clamp (13) extends and clamps the end of the adhesive tape (14) on the glue releasing clamp (13); and when the glue pulling clamp (13) retracts, the adhesive tape (14) is quantitatively pulled out; The positioning mechanism comprises a lifting and centering assembly arranged below the bracket and a driving wheel (20) arranged above the bracket; the lifting and centering assembly comprises a pair of supporting wheels (21) and two sets of centering pressure heads (22); the supporting wheels (21) lift the battery cell (100) and detach it from the bracket, and the centering pressure heads (22) clamp the battery cell (100) from both ends to center the battery cell; The glue sticking mechanism comprises a glue cutting tool (31) and a smoothing sponge block (32) arranged side by side on a glue cutting slide (30); the glue cutting tool (31) is located between a glue releasing clamp (12) and a glue pulling clamp (13), and the glue cutting tool (31) is located above the pulled adhesive tape (14); the smoothing sponge block (32) is located between the glue releasing clamp (12) and the glue pulling clamp (13) and above the circumferential wall of the battery cell (100); and the smoothing sponge block (32) has an arc surface matching the circumferential wall of the battery cell (100).

2. A cylindrical battery core encapsulation equipment according to claim 1, characterized in that: It also includes a glue pressing station arranged in the process below the glue sticking station, and the glue pressing station includes an end face glue pressing mechanism arranged on a frame; the end face glue pressing mechanism includes a glue pressing lifting assembly, a reference side axial slide (41), a floating side axial slide (42), a transverse slide (43), a reference side glue pressing assembly, and a floating side glue pressing assembly; The glue pressing and lifting assembly comprises a lifting support plate (40) arranged below the battery core (100); The reference side axial slide (41) and the floating side axial slide (42) are arranged relatively at two ends of the battery cell (100), and can both make reciprocating motion along the axial direction of the battery cell (100) under the drive of the cylinder; the reference side glue pressing assembly is installed on the reference side axial slide (41) and follows the reference side axial slide (41) to make reciprocating motion, and the floating side glue pressing assembly is installed on the floating side axial slide (42) and follows the floating side axial slide (42) to make reciprocating motion; The reference side axial slide (41) is mounted on the transverse slide (43) and follows the transverse slide (43) to make transverse reciprocating motion under the drive of the cylinder; The floating side glue pressing assembly comprises a floating side top core; The reference side glue pressing assembly comprises a first folding head (50), a second folding head (51) and a glue pressing head (52) arranged on a switching seat (54); the first folding head (50) is inserted into the second folding head (51); the glue pressing head (52) and the second folding head (51) are fixedly arranged side by side on the switching seat (54).

3. The cylindrical battery core encapsulation equipment according to claim 2, characterized in that: The switching seat (54) is installed on the reference side axial slide (41) and follows the reference side axial slide (41) to make reciprocating motion; the second folding head (51) is fixedly installed on the switching seat (54), and the second folding head (51) and the switching seat (54) have a coaxial through-going assembly cavity, and a glue-pressing return spring (55) is arranged in the assembly cavity; the first folding head (50) is located in the assembly cavity, the inner end of the first folding head (50) is connected to the glue-pressing return spring (55), and the outer end of the first folding head (50) is exposed outside the second folding head (51).

4. The cylindrical battery core encapsulation equipment according to claim 2, characterized in that: A plurality of circumferentially evenly distributed arcuate guide blocks (501) are arranged on the outer end surface of the first folding press head (50), and the arcuate surfaces of the arcuate guide blocks (501) protrude towards the center of the first folding press head (50).

5. The cylindrical battery core encapsulation equipment according to claim 2, characterized in that: The end face glue pressing mechanism also includes a battery core pressing assembly, and the battery core pressing assembly includes a pressing slide (60) driven by a pressing cylinder, and a pressing block (61) is arranged on the pressing slide (60).

6. The cylindrical battery core encapsulation equipment according to claim 2, characterized in that: The end portion of the rubber pressing head (52) is provided with a rubber head.

7. The cylindrical battery core encapsulation equipment according to claim 2, characterized in that: A total of four groups of the lifting support plates (40) are provided.

8. The cylindrical battery core encapsulation equipment according to claim 1, characterized in that: A floating glue pulling component (15) is also provided on the glue pulling slide, and the floating glue pulling component (15) has a floating spring built in, one end of the floating spring is connected to the glue pulling slide, and the other end is connected to the glue pulling clamp (13).

9. The cylindrical battery core encapsulation equipment according to claim 1, characterized in that: The glue placing mechanism also includes a plurality of guide wheels (11).

10. The cylindrical battery core encapsulation equipment according to claim 1, characterized in that: The lifting support plate (40) is driven by a rubber pressing lifting cylinder.

Images