CN117712456B

CN117712456B - Sheet-making device, lamination device and battery production line

Info

Publication number: CN117712456B
Application number: CN202311791195.1A
Authority: CN
Inventors: 易小刚; 徐鑫; 喻鹏亮; 何晋武
Original assignee: Sany Technology Equipment Co Ltd
Current assignee: Sany Technology Equipment Co Ltd
Priority date: 2023-12-22
Filing date: 2023-12-22
Publication date: 2024-06-18
Anticipated expiration: 2043-12-22
Also published as: CN117712456A

Abstract

The invention provides a flaking device, a lamination device and a battery production line, wherein the flaking device comprises: a fixed table; the cutting mechanism is arranged above the fixed table; the movable cutting table is arranged on the fixed table in a reciprocating manner along a straight line and is suitable for bearing the pole piece material belt, and a fixed structure is arranged on the movable cutting table, wherein the movable cutting table is provided with a first position and a second position on the fixed table, and the movable cutting table moves the pole piece material belt to a cutting position. In the structure, the pole piece can be directly driven to move by moving the cutting table, so that the pole piece is not required to be carried by carrying equipment, the occupied space of the flaking device is saved, and the extra carrying process is omitted, so that the flaking efficiency is improved. The pole piece material belt is directly driven to move through the movable cutting table, so that the placement position error of the carrying equipment is avoided, a deviation correcting station and a CCD camera are not required to be arranged on the upstream and downstream of the movable cutting table, a deviation correcting process is omitted, and the production beat is further improved.

Description

Sheet-making device, lamination device and battery production line

Technical Field

The invention relates to the technical field of battery production equipment, in particular to a sheet making device, a sheet stacking device and a battery production line.

Background

The flaking is an important process in the battery production process, in the flaking process, a strip-shaped pole piece material strip is cut into block-shaped pole pieces through cutting equipment (hardware die cutting, laser cutting and the like), and then the pole pieces flow to the subsequent process for lamination. In the prior art, the cutting table of the flaking process is usually fixed, so that the upstream unreeled pole piece material belt needs to be carried onto the cutting table (such as a conveying belt, a mechanical arm and the like) by a carrying device before cutting. On one hand, the carrying process is longer, and the overall production beat and the sheet production efficiency are affected; on the other hand, the handling equipment can have certain position deviation (especially the problem that conveyer belt has skidding), therefore set up correction station and CCD camera in the cutting bench's in the prior art upstream or downstream generally, increased the occupation space of equipment like this to shift between the multistation and influence production efficiency.

Disclosure of Invention

Therefore, the invention aims to overcome the defects of large occupied space and low flaking efficiency of battery pole piece flaking equipment in the prior art, thereby providing a flaking device, a lamination device and a battery production line.

In order to solve the above problems, the present invention provides a tablet production apparatus comprising: a fixed table; the cutting mechanism is arranged above the fixed table; the movable cutting table is arranged on the fixed table in a reciprocating manner along a straight line and is suitable for bearing the pole piece material belt, a fixed structure is arranged on the movable cutting table, wherein the movable cutting table is provided with a first position and a second position on the fixed table, when the movable cutting table is positioned at the first position, the fixed structure is suitable for receiving the pole piece material belt and fixing the pole piece material belt on the movable cutting table, so that the pole piece material belt and the movable cutting table synchronously move, the movable cutting table is positioned at the second position in the process of moving, or after the movable cutting table moves to the second position, the movable cutting table moves the pole piece material belt to the cutting position.

Optionally, the movable cutting table is arranged on the fixed table in a reciprocating sliding manner along a straight line, the movable cutting table is provided with a first position and a second position, a feeding mechanism is arranged above the fixed table and is suitable for conveying the pole piece material belt, when the movable cutting table is in the first position, the fixed structure is positioned at the front side of the feeding mechanism, and in the process that the movable cutting table slides from the first position to the second position, the pole piece material belt is pulled out from the feeding mechanism and synchronously moves with the movable cutting table.

Optionally, the fixing structure includes: the swing rod is arranged at the end part of the movable cutting table, which faces the second position, and is provided with a clamping block; the first elastic reset piece is suitable for applying elastic force to the swing rod from the loosening position to the clamping position, the feeding mechanism is provided with a first ram, and the first ram pushes the swing rod to swing to the loosening position in the process that the movable cutting table moves from the second position to the first position.

Optionally, the first ram extends along the horizontal direction, and the first ram is swingably arranged on the feeding mechanism, and the feeding mechanism further comprises a second elastic reset piece, the second elastic reset piece provides downward swinging elastic force for the first ram, and in the process that the movable cutting table moves from the second position to the first position, the first ram firstly pushes the swing rod to swing to the loosening position, and then the first ram swings to the upper end of the swing rod, so that the first elastic reset piece drives the swing rod to reset to the clamping position.

Optionally, a roller is arranged at the upper end of the swing rod, a guide inclined plane is arranged on the lower surface of the end part of the first collision rod, and the roller is matched with the guide inclined plane and the lower surface of the first collision rod.

Optionally, the slide-making device further comprises a second striker rod, and when the movable cutting table is in the second position, the second striker rod is in abutting fit with the lower end of the swing rod so as to drive the swing rod to swing to the material loosening position.

Optionally, be provided with the cutting position on the removal cutting platform, fixed knot constructs still including setting up the absorption hole on the cutting position, and the fixed bottom of fixing platform is fixedly provided with the vacuum cavity, absorption hole and vacuum cavity intercommunication.

Optionally, the cutting position is a plurality of, and a plurality of cutting positions interval sets up, and the vacuum cavity sets up the one side towards the second position at feeding mechanism to when moving the cutting platform in the second position, the vacuum cavity covers a plurality of cutting positions.

Optionally, the vacuum cavity includes first cavity and second cavity, along the direction of second position again, first cavity and second cavity set gradually to the space of two at least cutting bit width of the front side of first cavity cover feeding mechanism, the negative pressure of first cavity is greater than the negative pressure of second cavity.

Optionally, an elongated matching block is arranged on the fixed table, and a first sealing gap is formed between the matching block and the side edge of the movable cutting table; and/or a supporting structure is arranged on the fixed table, the supporting structure is suitable for supporting the movable cutting table, the vacuum cavity is formed by the space in the adsorption cover, and a second sealing gap is formed between the side edge of the top of the adsorption cover and the side edge of the supporting structure.

Optionally, the first sealing gap and/or the second sealing gap is in the range of 0.5mm to 2 mm.

Optionally, a kerf and a waste discharge port are arranged on the outer side of the cutting position, and the kerf and the waste discharge port are communicated with the vacuum cavity.

Optionally, the cutting mechanism includes a laser, the cutting mechanism is fixedly disposed above the fixed table, the laser cuts the pole piece material belt in the process of moving the cutting table from the first position to the second position, and the manner of moving the cutting table from the first position to the second position is a step movement.

Optionally, the cutting mechanism includes a laser, the cutting mechanism is fixedly disposed above the fixed table, the laser includes a galvanometer, the galvanometer is suitable for driving the laser spot to move to cut the pole piece material belt in the process of moving the cutting table from the first position to the second position, and the manner of moving the cutting table from the first position to the second position is continuous movement.

Optionally, the cutting mechanism comprises a laser, the cutting mechanism is movably arranged above the fixed table, and after the movable cutting table moves from the first position to the second position, the laser moves and cuts the pole piece material belt.

Optionally, the cutting mechanism includes a laser, the cutting mechanism is movably disposed above the fixed stage, and the laser moves and cuts the pole piece material strip during movement of the movable cutting stage from the first position to the second position.

Optionally, the tablet making device further comprises a dust removing mechanism, wherein the dust removing mechanism is arranged on the fixed table and is positioned below the cutting mechanism.

Optionally, the cutting mechanism is fixedly arranged above the fixed table, the dust removing mechanism comprises a dust collecting cover and an air knife, and the dust collecting cover and the air knife are respectively and fixedly arranged on two sides of the fixed table.

Optionally, the cutting mechanism is movably arranged above the fixed table, the dust removing mechanism comprises a dust collecting cover and an air knife, the dust collecting cover and the air knife are respectively and movably arranged at two sides of the fixed table, and the dust collecting cover and the air knife synchronously move with the cutting mechanism.

Optionally, the cutting mechanism is movably arranged above the fixed table, the dust removing mechanism comprises a dust collecting cover and a plurality of air knives, the opening of the dust collecting cover extends along the moving direction of the cutting mechanism, and the air knives are arranged at intervals along the moving direction of the cutting mechanism.

The invention also provides a lamination device, comprising: a lamination stage; the sheet making device is arranged at the side part of the lamination table and is the lamination device; and the feeding conveying mechanism is suitable for conveying the pole piece cut on the movable cutting table of the sheet making device to the lamination table.

Optionally, the movable cutting table has a first position and a second position on the fixed table of the sheet making device, when the movable cutting table is at the second position, the movable cutting table drives the sheet material belt to synchronously move to the cutting position, and the second position of the movable cutting table forms a sheet taking position of the feeding conveying mechanism.

The invention also provides a battery production line, which comprises the sheet making device or the sheet stacking device.

The invention has the following advantages:

By utilizing the technical scheme of the invention, the movable cutting table is arranged on the fixed table in a manner of being capable of reciprocating along a straight line, when the movable cutting table is in a first position, the upstream unreeled pole piece material belt is fixed on the movable cutting table through the fixed structure, and then the movable cutting table is moved to a second position. And in the process that the movable cutting table moves to the second position or after the movable cutting table moves to the second position, the movable cutting table synchronously drives the pole piece material belt to move to the cutting position. In the structure, the pole piece can be directly driven to move by moving the cutting table, so that the pole piece is not required to be carried by carrying equipment, the occupied space of the flaking device is saved, and the extra carrying process is omitted, so that the flaking efficiency is improved. The pole piece material belt is directly driven to move through the movable cutting table, so that the placement position error of the carrying equipment is avoided, a deviation correcting station and a CCD camera are not required to be arranged on the upstream and downstream of the movable cutting table, a deviation correcting process is omitted, and the production beat is further improved. Therefore, the technical scheme of the invention solves the defects of large occupied space and low tabletting efficiency of battery pole piece tabletting equipment in the prior art.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic structural view of an embodiment one of a tabletting device according to the present application (the movable cutting table is in a first position);

FIG. 2 shows an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic view showing the structure of the movable cutting table of the slide making apparatus of FIG. 1 moved to a second position;

FIG. 4 shows an enlarged schematic view at B in FIG. 3;

fig. 5 shows a schematic structural view of a fixing structure of the tablet-making apparatus of fig. 1;

FIG. 6 is a schematic view showing a first state in which the fixing structure of FIG. 1 is engaged with the first striker;

FIG. 7 is a schematic view showing a second state in which the fixing structure of FIG. 1 is engaged with the first striker;

FIG. 8 is a schematic view showing a third state in which the fixing structure of FIG. 1 is engaged with the first striker;

FIG. 9 is a schematic view showing the engagement of the fixed structure of FIG. 1 with a second striker;

fig. 10 is a schematic view showing the positional relationship of the respective structures of the tablet-producing apparatus of fig. 1;

fig. 11 is a schematic view showing the positional relationship of the respective structures of the tablet-producing apparatus of fig. 3;

FIG. 12 is a schematic view of the cutting structure of the flaking apparatus of FIG. 1 in cutting a pole piece material strip;

Fig. 13 is a schematic view showing the structure of a movable cutting table of the slide-making apparatus of fig. 1;

fig. 14 shows a schematic side cross-sectional view of the tabletting device of fig. 1;

FIG. 15 shows an enlarged schematic view at C in FIG. 14;

FIG. 16 shows an enlarged schematic view of FIG. 14 at D;

fig. 17 shows a schematic view of the structure of the slide making apparatus of fig. 1 at a cutting position;

Fig. 18 shows a schematic structural view of an embodiment of a lamination device according to the application.

Reference numerals illustrate:

1. A lamination stage; 2. a tabletting device; 3. a feeding and carrying mechanism; 4. a pole piece material belt unreeling mechanism; 5. a diaphragm unreeling mechanism; 6. a film laying mechanism; 7. a blanking conveying mechanism; 801. a hot cutting mechanism; 802. a rubberizing mechanism; 803. a hot pressing mechanism; 10. a fixed table; 11. a mating block; 12. a support structure; 20. a cutting mechanism; 30. moving the cutting table; 31. cutting the position; 32. cutting; 33. a waste discharge port; 40. a fixed structure; 41. swing rod; 42. a clamping block; 43. a first elastic restoring member; 44. a roller; 45. adsorption holes; 50. a feeding mechanism; 51. a first striker; 511. a guide slope; 52. a second elastic restoring member; 60. a second striker; 70. a vacuum chamber; 71. a first cavity; 72. a second cavity; 80. an adsorption cover; 90. a dust removing mechanism; 91. a dust collection cover; 92. an air knife.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

Example 1

As shown in fig. 1 to 4, an embodiment of a tabletting apparatus according to the present application comprises a stationary table 10, a cutting mechanism 20, and a movable cutting table 30. Wherein the cutting mechanism 20 is disposed above the stationary table 10. The movable cutting stage 30 is movably arranged on the stationary stage 10 and adapted to carry the pole piece material strips, and a stationary structure 40 is arranged on the movable cutting stage 30. The securing structure 40 is adapted to secure the pole piece strip to the movable cutting station 30 and to move the pole piece strip in synchronism with the movable cutting station 30 such that the movable cutting station 30 moves the pole piece strip to the cutting position.

By utilizing the technical scheme of the embodiment, the movable cutting table 30 is movably arranged on the fixed table 10, and after the upstream unreeled pole piece material belt is fixed on the movable cutting table 30 through the fixed structure 40, the movable cutting table 30 can synchronously drive the pole piece material belt to move to the cutting position. In the above structure, the pole piece can be directly driven to move by moving the cutting table 30, so that the pole piece is not required to be carried by carrying equipment, the occupied space of the flaking device is saved, and the extra carrying process is omitted, so that the flaking efficiency is improved. The pole piece material belt is directly driven to move through the movable cutting table 30, so that the placement position error of the conveying equipment is avoided, a deviation correcting station and a CCD camera are not required to be arranged on the upstream and downstream of the movable cutting table 30, a deviation correcting process is omitted, and the production beat is further improved. Therefore, the technical scheme of the embodiment solves the defects of large occupied space and low tabletting efficiency of battery pole piece tabletting equipment in the prior art.

The sheet making device of this embodiment refers to a device for cutting a pole piece material belt into a plurality of pole pieces, and the pole piece material belt can be a positive pole piece material belt or a negative pole piece material belt.

It should be noted that, the fixed table 10 in this embodiment is fixedly disposed with respect to the ground, i.e. no movement occurs, and mainly plays a role of carrying the movable cutting table 30. The moving cutting stage 30 is movably disposed on the fixed stage 10, and the movement of the moving cutting stage 30 may include, but is not limited to, the following: reciprocating along a straight line; reciprocating along a specific trajectory (a curved trajectory, a combined trajectory of a straight line and a curve); moving circumferentially on a plane; move circumferentially on a vertical plane, etc.

Further, a fixing structure 40 is provided on the movable cutting table 30, and the fixing structure 40 is used for fixing the upstream unreeled or processed pole piece material belt on the movable cutting table 30. Therefore, the movable cutting table 30 can drive the pole piece material belt to synchronously move on the movable cutting table 30 in the moving process. The fixed structure 40 is capable of gripping the end of the pole piece strip, which may be performed somewhere or at a certain segment of the movement trajectory of the moving cutting table 30.

Further, the cutting mechanism 20 is disposed above the fixing table 10, and when the cutting table 30 is moved to drive the pole piece material belt to move to the cutting position, the cutting mechanism 20 can cut the pole piece material belt, so as to cut the strip pole piece material belt into a plurality of block pole pieces. It should be noted that, the above cutting position may refer to: 1. the movable cutting table 30 stays at a certain position; 2. the mobile cutting station 30 moves over a certain range, i.e. the cutting position does not refer to a certain position.

As shown in fig. 1 to 4, in the technical solution of the present embodiment, a movable cutting table 30 is reciprocally slidably provided on a fixed table 10 along a straight line, and the movable cutting table 30 has a first position and a second position. A feeding mechanism 50 is arranged above the fixed table 10, and the feeding mechanism 50 is suitable for conveying pole piece material belts. When the movable cutting table 30 is in the first position, the fixing structure 40 is located at the front side of the feeding mechanism 50, and the fixing structure 40 can fix the pole piece material belt. During the sliding of the movable cutting table 30 from the first position to the second position, the pole piece material strip is drawn out of the feeding mechanism 50 and moves synchronously with the movable cutting table 30.

It should be noted that, the above-mentioned fixing structure 40 can fix the pole piece material belt, and may adopt modes of pressing the pole piece material belt, clamping the pole piece material belt, and adsorbing the pole piece material belt, so long as the pole piece material belt can move synchronously relative to the movable cutting table 30.

Specifically, the fixed stage 10 has a long-strip structure, and the movable cutting stage 30 has a long-strip structure. The extension direction of the fixed stage 10 is the same as the extension direction of the movable cutting stage 30, and the movable cutting stage 30 can reciprocate on the fixed stage 10 in the linear direction. In combination with the orientation shown in fig. 1 and 3, the mobile cutting station 30 is in a first position when it slides to the right of the fixed station 10 and in a second position when the mobile cutting station 30 slides to the left of the fixed station 10. The mobile cutting station 30 is capable of reciprocating between a first position and a second position.

Alternatively, the movable cutting table 30 may be driven by a linear module, which has the characteristics of high moving speed and high moving accuracy. Therefore, compared with the belt and the manipulator carrying the pole piece material belt in the prior art, the movable cutting table 30 of the embodiment can drive the pole piece material belt to move faster on one hand, thereby improving the production beat, and can accurately transfer the pole piece material belt to the cutting position on the other hand, thereby eliminating the need of setting a deviation correcting station and a CCD camera, and reducing the occupied space of the production equipment.

Further, the feeding mechanism 50 is fixedly arranged at an upper position of the fixing table 10, and functions to convey the upstream pole piece material belt. The feed mechanism 50 may include drive rolls, over rolls, correction rolls, and the like. Meanwhile, a cutting structure may be further disposed on the feeding mechanism 50, and the cutting structure may cut the pole piece material belt when the movable cutting table 30 moves toward the second position and withdraws the pole piece material belt to a predetermined length.

Further, the cutting mechanism 20 is disposed above the fixed stage 10, and as can be seen from fig. 1 and 3, the cutting mechanism 20 is located on a side of the feeding mechanism 50 toward the second position (i.e., a side toward the left in fig. 1 and 3). The cutting means 20 cut in two ways: one is that the moving cutting station 30 cuts the pole piece web during movement from the second position to the first position; alternatively, the movable cutting station 30 cuts the pole piece web after moving to the second position. Those skilled in the art will appreciate that the above-described mid-cut positions for both cutting modes refer to a range of segments or a position.

In this embodiment, a first cutting method is adopted, and a second cutting method will be described in embodiment two.

In order to more clearly show the positional and structural relationships of the respective components, please refer to fig. 10 and 11.

As shown in fig. 10, when the movable cutting table 30 is moved to the first position, the fixing structure 40 is located on the side of the feeding mechanism 50 facing the second position (left side shown in fig. 10), and the fixing structure 40 is closer to the feeding mechanism 50, so that the fixing structure 40 can clamp the end of the pole piece material tape.

As shown in fig. 11, when the movable cutting table 30 moves toward the second position, the fixed structure 40 clamps the pole piece tape, and thus the pole piece tape can be drawn out from the feeding mechanism 50 so that the pole piece tape moves in synchronization with the movable cutting table 30. During the movement of the movable cutting table 30 from the first position towards the second position, the cutting mechanism 20 cuts the pole piece strip until the movable cutting table 30 moves to the second position, at which time the cutting of the pole piece strip into a plurality of pole pieces is also completed.

After the cutting of the pole piece material belt is completed, the pole pieces are discharged from the movable cutting table 30, and then the movable cutting table 30 returns to the first position from the second position. By moving the cutting table 30 back and forth between the first position and the second position, high-speed circulation tabletting of the tabletting apparatus can be achieved.

In addition, as described above, when the movable cutting table 30 has completed cutting the pole piece material tape after moving from the first position to the second position, the movable cutting table 30 can reciprocate at a high speed between the first position and the second position, and can hardly stop (only a short blanking stop time and a reversing stop time at the first position and the second position are included), so that the tabletting efficiency is greatly improved.

The structure and operation of the fixing structure 40 will be described in detail below.

As shown in fig. 5 to 8, the fixing structure 40 includes a swing link 41 and a first elastic restoring member 43, wherein the swing link 41 is swingably provided at an end of the movable cutting table 30 toward the second position (i.e., the left end shown in fig. 1 and 3), and a clamp block 42 is provided on the swing link 41. The swing lever 41 has a gripping position and a loosening position when swinging. The first elastic restoring member 43 is adapted to apply an elastic force to the swing link 41 in a direction from the loose material position to the nip material position. Further, the feeding mechanism 50 is provided with a first striker 51, and in the process of moving the cutting table 30 from the second position to the first position, the first striker 51 pushes the swing rod 41 to swing to the loosening position.

Specifically, as shown in fig. 5, the end of the movable cutting table 30 is fixedly provided with a mounting block, and the middle of the swing lever 41 is rotatably provided on the mounting block in a lower position, that is, both the upper end and the lower end of the swing lever 41 can swing. The clamp block 42 is disposed at the upper end of the swing link 41, and the clamp block 42 and the swing link 41 form an inverted "L" shaped structure. The outer side of the lower surface of the clamping block 42 is formed with a clamping surface, and soft structures such as rubber strips can be arranged on the clamping surface, so that the pole piece material belt is prevented from being damaged when the clamping surface is in clamping contact with the pole piece material belt.

As shown in fig. 6, when the swing link 41 is in the vertical position, the clamp face of the clamp block 42 is downward. At this time, the swing rod 41 is at the clamping position, and the pole piece material belt can be clamped between the clamping surface and the upper surface of the movable cutting table 30, that is, the movable cutting table 30 moves to drive the pole piece material belt to synchronously move.

As shown in fig. 7, when the swing lever 41 swings to the inclined position, the clamp surface of the clamp block 42 also swings upward. At this time, the swing rod 41 is in the feeding position, that is, the clamping surface cannot be contacted with the pole piece material belt.

As shown in fig. 6, the first elastic restoring member 43 is a spring, one end of which is connected to the mounting block, and the other end of which is connected to the middle position of the swing link 41. Further, a limiting structure (e.g., two limiting planes) may be provided between the mounting block and the swing link 41, so that the swing link 41 is maintained in a vertical position, that is, a clamping position, by the first elastic restoring member 43 without receiving other external force.

As shown in fig. 7, when the upper end of the swing link 41 receives a rightward external force, the swing link 41 can swing rightward to the loose position. When the external force disappears, or the rightward external force is smaller than the elastic force of the first elastic restoring member 43, the first elastic restoring member drives the swing rod 41 to restore to the clamping position.

Alternatively, as can be seen from fig. 5, the two mounting blocks are arranged oppositely, the two swing rods 41 are also arranged oppositely, and the two swing rods 41 are respectively arranged on the two mounting blocks. A first elastic restoring member 43 is provided between each of the mounting blocks and the swing link 41. The material clamping block 42 is in a strip shape, and two sides of the material clamping block 42 are respectively connected to the upper ends of the two swing rods 41. By the arrangement, the elastic force can be uniformly applied from the two sides of the clamping block 42, so that the clamping effect of the clamping block 42 on the pole piece material belt is more stable when the swing rod 41 is positioned at the clamping position.

As shown in fig. 1, 3,6 and 7, the feeding mechanism 50 is provided with a first striker 51, and the first striker 51 extends toward the second position and has a height adapted to the upper end position of the swing lever 41. During the retraction of the movable cutting table 30 from the second position to the first position, the swing link 41 gradually approaches the first striker 51 until the first striker 51 comes into contact with the upper end of the swing link 41 (as shown in fig. 6).

As shown in fig. 7, after the first striker 51 contacts the upper end of the swing link 41, the first striker 51 pushes the upper end of the swing link 41 in the process of moving the cutting table 30 toward the first position, thereby driving the swing link 41 to move to the loosening position. The drive roller of the feed mechanism 50 may now feed the pole piece strip forward a distance such that the end of the pole piece strip is below the clamping face of the clamp block 42.

Further, when the movable cutting table 30 moves from the first position toward the second position, the first striker 51 is separated from the upper end of the swing link 41, the swing link 41 is reset to the clamping position by the first elastic reset member 43, and the clamping block 42 clamps the pole piece material tape on the upper surface of the movable cutting table 30, thereby completing the fixing of the pole piece material tape.

In the above structure, the mechanical clamping and feeding of the fixing structure 40 can be realized without an electric control structure, thereby saving the cost of the tablet making device.

Of course, in some embodiments not shown, a driving mechanism (linear cylinder, motor, etc.) may be used to individually control the swing position of the swing link 41. In this embodiment, it is not necessary to provide the above-described first elastic restoring member 43 and first striker 51.

As shown in fig. 7 to 9, in the technical solution of the present embodiment, the first striker 51 extends in the horizontal direction, and the first striker 51 is swingably provided on the feeding mechanism 50. The feeding mechanism 50 further includes a second elastic restoring member 52, and the second elastic restoring member 52 provides an elastic force of swinging downward to the first striker 51. In the process of moving the movable cutting table 30 from the second position to the first position, the first striker 51 pushes the swing rod 41 to swing to the material loosening position, and then the first striker 51 swings to the upper end of the swing rod 41, so that the first elastic reset piece 43 drives the swing rod 41 to reset to the material clamping position.

Specifically, one end of the first striker 51 is rotatably connected to the mounting frame of the feeding mechanism 50, and the other end of the first striker 51 is a swinging end and is swingable in the up-down direction. The second elastic restoring member 52 is a spring, the upper end of which is connected to the middle part of the first striker 51 at a rear position, and the lower end of which is connected to the mounting frame of the feeding mechanism 50. Further, a stopper structure (e.g., two stopper planes) may be provided between the mounting frame of the feeding mechanism 50 and the first striker 51, so that the first striker 51 is kept in a horizontal position (the position shown in fig. 6) by the second elastic restoring member 52 without receiving other external forces.

So arranged, as shown in fig. 6 and 7, when the movable cutting table 30 is retracted toward the first position, the first striker 51 pushes the swing lever 41 to swing to the releasing position, and at the same time, the swing lever 41 can also push the first striker 51 to swing upward.

As shown in fig. 8, when the movable cutting table 30 continues to move toward the first position, the angle at which the first striker 51 swings upward gradually increases, that is, the horizontal component force applied to the swing link 41 becomes smaller and smaller until the horizontal component force is smaller than the elastic force applied to the swing link 41 by the first elastic restoring member 43, at which time the first elastic restoring member 43 drives the swing link 41 to return to the clamping position.

As shown in fig. 6 to 8, the first striker 51 is disposed such that the swing lever 41 swings to the releasing position and then returns to the clamping position in the process of moving the cutting table 30 back from the second position to the first position. As shown in fig. 6 to 8, by adjusting the relationship between the magnitude of the elastic force of the first elastic restoring member 43 and the second elastic restoring member 52 and the length and the positional relationship of the swing link 41 and the first striker 51, the swing link 41 is moved to the lower side of the pole piece material belt end portion at the material loosening position and then the swing link 41 is restored to the material clamping position, so that the pole piece material belt is clamped on the upper surface of the movable cutting table 30 in the process of retracting the movable cutting table 30 from the second position to the first position. Namely, the process that the driving roller of the feeding mechanism 50 can convey the pole piece material forward for a certain distance can be omitted, the electric control is further reduced, and the full mechanical control of clamping is realized.

As shown in fig. 6 to 8, in the technical solution of the present embodiment, the upper end of the swing link 41 is provided with a roller 44, the lower surface of the end of the first striker 51 is provided with a guide slope 511, and the roller 44 is engaged with the guide slope 511 and the lower surface of the first striker 51.

Specifically, the roller 44 reduces the friction with the lower surface of the end of the first striker 51, so that the swing link 41 is more easily returned to the nip position at the position shown in fig. 8. The guiding inclined surface 511 enables the swing rod 41 to push the first striker 51 to swing upwards more easily when the first striker 51 and the swing rod 41 start to contact, and prevents the structure between the first striker 51 and the swing rod 41 from being blocked.

As shown in fig. 9, in the technical solution of this embodiment, the tabletting device further includes a second striker 60, and when the movable cutting table is in the second position, the second striker 60 is in abutting engagement with the lower end of the swing link 41, so as to drive the swing link 41 to swing to the loosening position.

Specifically, as described above, the cutting of the pole piece material tape has been completed when the movable cutting table 30 is in the second position, and therefore, the blanking conveyance of the pole piece can be started when the movable cutting table 30 is in the second position. Therefore, in this embodiment, when the movable cutting table 30 moves to the second position, the swing lever 41 needs to swing to the loosening position, so that the blanking conveyance of the pole piece at the end is not affected.

As shown in fig. 1,3 and 9, taking the direction shown in fig. 1 and 3 as an example, a second striker 60 may be provided at a left side position of the fixing table 10, the second striker 60 extending in a horizontal direction and adapted to be engaged with a lower end of the swing link 41. When the movable cutting table 30 moves to the second position, the second plunger 60 can push the lower end of the swing rod 41 and drive the swing rod 41 to swing to the loosening position, so that pole piece carrying and blanking at the end part is not affected. When the pole piece blanking is finished and the movable cutting table 30 is retracted from the second position to the first position, the second plunger 60 is separated from the lower end of the swing rod 41, and the swing rod 41 is reset to the clamping position under the action of the first elastic reset piece 43.

Optionally, the end of the second plunger 60 is provided with a roller, which can reduce friction with the side of the bottom of the swing rod 41, so that the swing rod 41 can swing to the loosening position more easily, and pole piece blanking is not affected.

As shown in fig. 1 to 4, in the technical solution of the present embodiment, the cutting mechanism 20 includes a laser, the cutting mechanism 20 is fixedly disposed above the fixed table 10, and the laser cuts the pole piece material belt during the process of moving the cutting table 30 from the first position to the second position.

In this embodiment, the moving cutting table 30 may be moved in steps from the first position to the second position. I.e. the moving cutting station 30 is first moved a predetermined distance towards the second position and then the laser starts cutting the first pole piece. After the first pole piece is cut, the moving cutting station 30 continues to move a predetermined distance toward the second position, and the laser then begins to cut the second pole piece. The moving cutting station 30 is thus moved in reciprocating steps until the laser cuts through the entire pole piece.

In this embodiment, the moving cutting table 30 may be continuously moved from the first position to the second position. Specifically, the vibrating mirror is arranged in the laser to adjust the position of the laser spot, so that the laser can realize continuous cutting of the pole piece material belt in the process of moving the movable cutting table 30 from the first position to the second position, namely, the movable cutting table 30 does not need to stop in the moving process, and the tabletting efficiency is greatly improved.

Optionally, two lasers are provided, one laser cuts a kerf between adjacent pole pieces, the other laser cuts a pole lug of the pole piece, and the two laser cuts cooperatively cut, so that the moving speed of the moving cutting table 30 can be improved, and the flaking efficiency is further improved.

As shown in fig. 2 and 4, in the technical solution of the present embodiment, the movable cutting table 30 is provided with a cutting position 31, the fixing structure 40 further includes an adsorption hole 45 disposed on the cutting position 31, and the bottom of the fixing table 10 is fixedly provided with a vacuum cavity 70, and the adsorption hole 45 is communicated with the vacuum cavity 70.

Specifically, the shape of the cutting bit 31 is adapted to the shape of the pole piece, which includes a top edge, a bottom edge and two side edges, and the top edge has a tab. The outer circumference of the cutting location 31 is surrounded by a slit, thereby forming a laser cutting slit.

As can be seen from fig. 2 and 4, the cutting station 31 is provided with a plurality of suction holes 45 arranged in a staggered array. And since the tab area of the cutting site 31 is small, the density of the plurality of adsorption holes 45 at the tab is greater than that at other locations. The bottom of the fixing table 10 is provided with a vacuum chamber 70, and the vacuum chamber 70 may communicate with an external negative pressure mechanism, thereby forming a negative pressure in the vacuum chamber 70. The negative pressure in the vacuum chamber 70 may be transmitted to the upper surface of the cutting site 31 through the suction hole 45, thereby forming a negative pressure at the upper surface of the cutting site 31.

When the pole piece is cut, the negative pressure at the suction hole 45 enables the cut pole piece to be clung to the cutting position 31, and the pole piece shaking and separation caused by the moving cutting table 30 in the moving process are prevented.

As shown in fig. 2, 4, 10 and 11, in the technical solution of the present embodiment, a plurality of cutting bits 31 are provided, and the plurality of cutting bits 31 are arranged at intervals. The vacuum chamber 70 is disposed on a side of the feeding mechanism 50 facing the second position, and the vacuum chamber 70 covers the plurality of cutting sites 31 when the movable cutting table 30 is in the second position.

Specifically, a plurality of cutting sites 31 are provided at intervals along the length direction of the movable cutting table 30, and the number of cutting sites 31 depends on the number of tablets at one time. For example, in this embodiment, the lamination device processes twelve pole pieces in one cycle, so the cutting positions 31 in this embodiment are set to twelve. Of course, the number of cutting bits 31 may be greater than the number of tablets at a time, so long as the number of cutting bits 31 passing through the cutting mechanism 20 is controlled when the movable cutting table 30 is in the second position.

Further, when the movable cutting table 30 is moved to the second position, the vacuum chamber 70 can cover all twelve cutting positions 31, that is, the machined twelve pole pieces can be fixed on the corresponding cutting positions 31 through the adsorption holes 45. Therefore, when the movable cutting table 30 moves to the second position, each pole piece has higher position precision, and the pole pieces can be directly discharged from the movable cutting table 30 without correcting deviation.

The cutting process of the pole piece material strip will be further described with reference to fig. 12

As described above, the fixing structure 40 fixes the pole piece material belt and drives the pole piece material belt to move synchronously with the moving cutting table 30 when the moving cutting table 30 moves from the first position to the second position and the cutting mechanism 20 has not cut the pole piece material belt.

As can be seen in connection with fig. 12, when the cutting mechanism 20 cuts the first pole piece, the first pole piece is completely separated from the upstream pole piece material belt, and the fixing structure 40 cannot move the upstream pole piece material belt continuously. However, since the suction holes 45 are provided in the cutting position 31, the pole piece material tape can still be fixed on the upper surface of the movable cutting table 30 by negative pressure. That is, the suction force generated by the suction holes 45 drives the pole piece material belt to move synchronously with the movable cutting table 30, so that the upstream pole piece material belt can still keep moving synchronously with the movable cutting table 30 under the condition that the pole piece is cut off.

After the cutting of each pole piece is completed, the moving mode of the pole piece material belt at the upstream is consistent with the moving mode, so that the description is omitted.

In order to ensure that the negative pressure generated at the adsorption hole 45 can stably drive the pole piece material belt to move, the vacuum cavity 70 is provided to include a first cavity 71 and a second cavity 72 in this embodiment. Along the second position, the first cavity 71 and the second cavity 72 are sequentially arranged, and the first cavity 71 covers the space with the width of at least two cutting positions 31 on the front side of the feeding mechanism 50, and the negative pressure of the first cavity 71 is greater than that of the second cavity 72.

Specifically, as can be seen in fig. 10 and 11, the first cavity 71 is disposed proximate to the feed mechanism 50. The "width of the cutting bit 31" mentioned above refers to the dimension of the cutting bit 31 in the left-right direction in fig. 4.

As will be appreciated by those skilled in the art in connection with fig. 4, when the cutting mechanism 20 has cut the side edge of one pole piece, the moving cutting station 30 needs to pull the upstream pole piece strip to a position covering the two cutting stations 31 on the front side of the feeding mechanism 50, and the cutting mechanism 20 can only cut the side edge of the next pole piece.

In the present embodiment, therefore, the first chamber 71 covers the space of the width of at least two cutting sites 31 on the front side of the feeding mechanism 50, and the negative pressure generated by the first chamber 71 is large, that is, the suction force applied to the pole piece web is large. When the movable cutting table 30 moves, the pole piece material belt can still keep moving synchronously with the movable cutting table 30 under the action of high adsorption force, so that the situation that the pole piece material belt and the upper surface of the movable cutting table 30 slip in a dislocation manner is prevented.

When a certain pole piece is cut, the pole piece is separated from the pole piece material belt, so that the pole piece is fixed at the corresponding cutting position 31 only by adopting smaller adsorption force. As shown in connection with fig. 4, after the pole piece is cut, the flow is transferred to the downstream space of the width of the two cutting sites 31 on the front side of the feeding mechanism 50, which corresponds to the second cavity 72. Therefore, in this embodiment, the second cavity 72 only needs to generate a small negative pressure.

As shown in fig. 9 and 10, the first and second chambers 71 and 72 may be connected to different external negative pressure devices through pipes, respectively, thereby achieving the effect that the first and second chambers 71 and 72 have different negative pressures.

In this embodiment, the vacuum chamber 70 is divided into the first chamber 71 and the second chamber 72, the second chamber 72 only provides a smaller negative pressure, and the volume of the second chamber 72 is much larger than that of the first chamber 71 (at least five to one in this embodiment), the smaller first chamber 71 is easier to realize a larger negative pressure, so that the overall power requirement of the external negative pressure device can be reduced, and the cost and energy consumption of the device can be reduced.

Of course, the vacuum chamber 70 may be an integral chamber, and not divided into the first chamber 71 and the second chamber 72. At this time, it is only necessary to ensure that the vacuum chamber 70 has a large negative pressure as a whole. But this embodiment would significantly increase the power demand and energy consumption of the external negative pressure device.

As described above, since the negative pressure applied at the suction hole 45 through the vacuum chamber 70 can also play a role of fixing and driving the pole piece material tape, in one embodiment, the fixing structure 40 may also include only the suction hole 45 without providing the swing link 41, the clamp block 42, the first elastic restoring member 43 and the roller 44 described above.

In this embodiment, the mobile cutting station 30 is initially in the first position and the drive rollers on the feed mechanism 50 simultaneously feed the pole piece material forward as the mobile cutting station 30 begins to move from the first position to the second position. When the suction hole 45 on the first cutting station 31 of the movable cutting station 30 communicates with the vacuum chamber 70, the end of the pole piece strip is fed to the first cutting station 31 of the movable cutting station 30. Therefore, when the movable cutting table 30 continues to move towards the second position, the negative pressure generated at the suction hole 45 can fix the pole piece material belt on the upper surface of the movable cutting table 30, and achieve the effect of driving the pole piece material belt and the movable cutting table 30 to move synchronously.

Further, as will be appreciated by those skilled in the art, since the movable cutting table 30 in the present embodiment is capable of sliding with respect to the stationary table 10, a certain gap must be provided between the movable cutting table 30 and the stationary table 10. This gap may cause a leak to some extent in the negative pressure in the vacuum chamber 70 (particularly, the first chamber 71), which is disadvantageous in ensuring the suction force at the suction hole 45. It is therefore necessary to solve the contradiction between sliding between the movable cutting table 30 and the stationary table 10 and pressure leakage in the vacuum chamber 70.

As shown in fig. 14 and 15, in the technical solution of the present embodiment, an elongated mating block 11 is provided on the fixed table 10, and a first sealing gap is formed between the mating block 11 and a side edge of the movable cutting table 30. Specifically, the fitting block 11 is provided at a side position of the movable cutting table 30, and the fitting block 11 extends in the direction of the movable cutting table 30. A in fig. 15 is a first gap, and the size of a is smaller, so that when the air flow in the vacuum chamber 70 flows along the upper direction, the air flow passes through a smaller gap, thereby reducing the leakage of the air flow and slowing down the negative pressure leakage in the vacuum chamber 70.

Alternatively, since the requirement of the first cavity 71 for the negative pressure is high, the fitting block 11 may extend to at least a range covering the first cavity 71, so as to ensure that the first cavity 71 can maintain a high negative pressure state.

As shown in fig. 14 and 16, in the technical solution of the present embodiment, the fixed stage 10 is provided with a support structure 12, and the support structure 12 is adapted to support the movable cutting stage 30. The vacuum chamber 70 is formed by the space within the suction hood 80, with a second sealing gap being formed between the top side of the suction hood 80 and the side of the support structure 12. Specifically, the support structure 12 is also elongated and extends along the length of the movable cutting table 30. A first side of the mobile cutting station 30 is slidably disposed on the support structure 12, and a second side of the mobile cutting station 30 forms a cantilever structure (as can be seen from fig. 14, the mating block 11 is disposed on a side of the second side of the mobile cutting station 30). The suction hood 80 is provided at the bottom of the movable cutting table 30, which is located outside the support structure 12.

Since the movable cutting table 30 needs to slide with respect to the fixed table 10 and the suction cap 80 is fixedly provided on the fixed table 10, the upper opening of the suction cap 80 and the lower surface of the movable cutting table 30 must have a certain gap. As can be seen from fig. 16, b in fig. 16 is a second gap, and b is smaller, so that when the air flow in the vacuum chamber 70 flows along the lower direction, the air flow passes through a smaller gap, thereby reducing the leakage of the air flow and slowing down the leakage of the negative pressure in the vacuum chamber 70.

The above-described first and second sealing gaps should be set smaller and better while ensuring smooth sliding of the movable cutting table 30, so as to minimize negative pressure leakage in the vacuum chamber 70.

In this embodiment, the values of the first seal gap and the second seal gap are in the range of 0.5mm to 2 mm. And preferably the first sealing gap and the second sealing gap are selected to be 1mm.

As shown in fig. 2,4 and 13, in the technical solution of the present embodiment, the tablet manufacturing apparatus further includes a dust removing mechanism 90, where the dust removing mechanism 90 is disposed on the fixed table 10 and below the cutting mechanism 20. The dust generated by the cutting mechanism 20 when cutting the pole piece strip is collected by the dust removal mechanism 90.

Further, the cutting mechanism 20 is fixedly disposed above the fixed table 10, the dust removing mechanism 90 includes a dust hood 91 and an air knife 92, and the dust hood 91 and the air knife 92 are fixedly disposed on both sides of the fixed table 10. The air knife 92 can blow positive pressure air to blow dust in the cutting process, and the dust hood 91 can be connected with external negative pressure equipment and generate negative pressure, so that the blown dust is sucked and collected.

Specifically, since the cutting mechanism 20 in the present embodiment is fixedly disposed, the cutting position remains unchanged during cutting. The opening of the dust hood 91 may be set smaller as long as it can cover the cutting position, and the air knives 92 may be set smaller in number, for example, one or two.

As shown in fig. 17, in the technical solution of the present embodiment, a slit 32 and a waste outlet 33 are provided on the outer side of the cutting position 31, and the slit 32 and the waste outlet 33 are both in communication with the vacuum chamber 70. Specifically, a linear slit 32 is formed between adjacent cutting sites 31, and the slit 32 is used for cutting adjacent pole pieces. In the process of cutting the pole piece, the pole lug needs to be cut in the empty foil area, so that after the pole piece is cut, the empty foil area of the adjacent pole lug is cut to form waste materials. The waste outlet 33 is arranged between the lug parts of the two cutting stations 31, so that the cut waste can be discharged through the waste outlet 33.

Further, both the slit 32 and the waste outlet 33 are in communication with the vacuum chamber 70, so that the vacuum chamber 70 is capable of applying negative pressure to the slit 32 and the waste outlet 33 during the cutting of the pole piece by the cutting mechanism 20. Dust and slag at the slit 32 can be sucked into the vacuum chamber 70 to remove dust, and waste at the waste outlet 33 can also be sucked into the vacuum chamber 70 to be collected.

Therefore, in this embodiment, the vacuum chamber 70 not only plays a role in fixing and driving the pole piece material belt, but also plays a role in dust removal and waste collection.

Example two

A second embodiment of the tabletting device according to the application has substantially the same structure as the first embodiment described above, except that the cutting mechanism 20 is movably arranged above the stationary table 10 and that the laser moves and cuts the pole piece strip after the movable cutting table 30 has been moved from the first position to the second position.

In the second embodiment, the cutting mechanism 20 does not cut the pole piece material strip during the movement of the movable cutting table 30 from the first position to the second position, but the cutting mechanism 20 cuts the pole piece material strip after the movable cutting table 30 stops at the second position.

Referring to fig. 3, when the movable cutting table 30 is stopped at the second position, the cutting mechanism 20 is moved from right to left and sequentially cuts each side and tab, thereby cutting the strip of pole pieces into a plurality of pole pieces. At this time, the movement range of the cutting mechanism 20 is such as to cover the plurality of cutting sites 31.

The cutting mechanism in the second embodiment can be laser cutting or hardware die cutting.

Compared with the first embodiment, the technical scheme of the second embodiment has the advantages that: the fixing structure 40 can always provide a pulling force for the pole piece material belt in the process of moving the movable cutting table 30 from the first position to the second position, so long as the pole piece material belt is ensured not to shake in the moving process of the movable cutting table 30. Therefore, the vacuum cavity 70 is not required to be divided into the first cavity 71 and the second cavity 72, and relatively low negative pressure is provided, so that the situation that the pole piece material belt is in slip dislocation relative to the upper surface of the movable cutting table 30 is basically eliminated. The disadvantage is that the cutting mechanism 20 starts cutting after the movable cutting table 30 is moved to the second position, and the distance of all the cutting positions 31 is required to be linearly moved, thus greatly increasing the time of one-cycle film making and affecting the tact time.

In addition, since the cutting mechanism 20 in the second embodiment is configured to cut while moving, the cutting position is constantly changing, and thus the form of the dust removing mechanism 90 of the first embodiment is not applicable to the second embodiment.

The scheme of the second embodiment may employ the following two arrangements of the dust removing mechanism 90.

In one embodiment, the dust hood 91 and the air knife 92 are respectively movably disposed at both sides of the fixed stage 10, and the dust hood 91 and the air knife 92 move in synchronization with the cutting mechanism 20. Therefore, when the cutting mechanism 20 cuts a certain pole piece and moves to the next cutting position 31, the dust hood 91 and the air knife 92 also move to the next cutting position 31 synchronously.

Alternatively, the dust hood 91 and the plurality of air knives 92 are still fixedly disposed on both sides of the fixed table 10, but the dust hood 91 has a larger opening, and the opening of the dust hood 91 extends along the moving direction of the cutting mechanism 20, so that the opening of the dust hood 91 can cover all cutting positions of the cutting mechanism 20. And the air knives 92 need to be arranged in a plurality, and the air knives 92 are arranged at intervals along the moving direction of the cutting mechanism 20, so that positive-pressure air blowing can be provided on the moving path of the cutting mechanism 20.

Example III

In comparison with the above-described embodiment, the third embodiment of the tablet-making apparatus according to the present application is the same in that the cutter mechanism 20 is also movably disposed above the stationary table 10, except that the cutter mechanism 20 moves only within a certain movement section.

Specifically, when the moving cutting table 30 starts to move, the cutting mechanism 20 starts to move synchronously (i.e., chase), and after the cutting mechanism 20 moves to the end of the movement section, cutting of one pole piece is completed. Then, the cutting mechanism 20 returns to the start end of the movement section, and continues to move toward the end of the movement section, thereby cutting the second pole piece. And (5) reciprocating in this way, and finishing the cutting of all the pole pieces.

In the third embodiment, the moving time of the cutting mechanism 20 in the moving section is a tape running time of one pole piece separation completion, and the moving distance of the cutting mechanism 20 in the moving section is a tape running distance of one pole piece separation completion.

Further, in the third embodiment, the cutting mechanism 20 may perform the chase during the movement of the movable cutting stage 30 from the first position to the second position.

As shown in fig. 18, the present application further provides a lamination device, and an embodiment of the lamination device according to the present application includes the lamination table 1, the aforesaid tabletting device 2, and the loading and transporting mechanism. Wherein, pelleter 2 sets up the lateral part at lamination bench 1, and material loading transport mechanism 3 is suitable for carrying the pole piece after cutting on the removal cutting table 30 of pelleter 2 to lamination bench 1.

Specifically, the tablet forming apparatuses 2 are provided in two positions on both sides of the lamination table 1. One is a positive plate flaking mechanism, and the other is a negative plate flaking mechanism. The positive plate sheet making mechanism is provided with a positive plate material strip unreeling mechanism 4 at the upstream of the positive plate sheet making mechanism, and the positive plate unreeled by the positive plate material strip unreeling mechanism 4 is introduced into a feeding mechanism 50 of the positive plate sheet making mechanism. The upstream of the negative pole piece preparation mechanism is provided with a pole piece material strip unreeling mechanism 4 of the negative pole piece, and the negative pole piece unreeled by the pole piece material strip unreeling mechanism 4 is introduced into a feeding mechanism 50 of the negative pole preparation mechanism.

The feeding and carrying mechanism 3 comprises a manipulator which reciprocates between the positive plate preparation mechanism and the negative plate preparation mechanism, so that the prepared positive plate and negative plate are sequentially carried to the lamination table 1, and lamination is carried out.

Further, as described above, when the movable cutting table 30 moves the pole piece tape to the second position, the cutting mechanism 20 can complete the cutting of the pole piece tape, thereby forming a plurality of pole pieces. After cutting, the movable cutting table 30 is kept at the second position, and the feeding and conveying mechanism 3 directly removes the pole piece from the movable cutting table 30 at the second position, namely the second position of the movable cutting table forms a piece taking position of the feeding and conveying mechanism.

The lamination device further comprises a membrane unwind mechanism 5 and a membrane laying mechanism 6, the membrane unwind mechanism 5 being adapted to release a membrane to the lamination table 1, which is located at the side of the lamination table 1 and at a position between the positive and negative electrode sheet pellicles. The film laying mechanism 6 can be arranged above the lamination table 1 in a reciprocating manner along the left-right direction shown in fig. 18, and the film laying mechanism 6 can grasp the film released by the film unreeling mechanism 5 and lay the film on the lamination table in a reciprocating manner along the left-right direction of fig. 18, so that a battery cell form of positive plate-film-negative plate-film is formed.

Alternatively, the diaphragm unreeling mechanism 5 may be provided on both sides of the lamination stage 1, or the diaphragm unreeling mechanism 5 may be provided on only one side of the lamination stage 1.

After the lamination is completed by the lamination table 1, the battery cell is conveyed and discharged through the discharging conveying mechanism 7, and the subsequent process treatment is carried out. The post-processing mechanism includes a hot cutting mechanism 801, a rubberizing mechanism 802, and a hot pressing mechanism 803. Since the plurality of pole pieces are manufactured at one time on the lamination device 2, a plurality of battery cells are laminated on the lamination table 1. The multiple cells need to cut off and fuse the diaphragms between the adjacent cells through a hot cutting mechanism 801; then the battery cell is rubberized by a rubberizing mechanism 802, and the non-hot-melt edge of the battery cell is rubberized; finally, the battery core compacts the loose positive plate, the diaphragm and the negative plate through the hot pressing mechanism 803 to complete the lamination process.

The application also provides a battery production line, and an embodiment of the battery production line according to the application comprises the sheet making device or the lamination device.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims

1. A tableting apparatus, comprising:

A fixed table (10);

A cutting mechanism (20) arranged above the fixed table (10);

the feeding mechanism (50) is arranged above the fixed table (10) and is suitable for conveying the pole piece material belt;

A movable cutting table (30) which is arranged on the fixed table (10) in a reciprocating manner along a straight line and is suitable for bearing a pole piece material belt, a fixed structure (40) is arranged on the movable cutting table (30),

The movable cutting table (30) is provided with a first position and a second position on the fixed table (10), when the movable cutting table (30) is positioned at the first position, the fixed structure (40) is close to the feeding mechanism (50), the fixed structure (40) is suitable for receiving a pole piece material belt conveyed by the feeding mechanism (50) and fixing the pole piece material belt on the movable cutting table (30), the pole piece material belt is pulled out of the feeding mechanism (50) in the process of sliding the movable cutting table (30) from the first position to the second position, so that the pole piece material belt and the movable cutting table (30) synchronously move, and when the movable cutting table (30) is positioned at the second position, or after the movable cutting table (30) moves to the second position, the movable cutting table (30) moves the pole piece material belt to the cutting position.

2. A tabletting device according to claim 1, wherein the fixed structure (40) is located on the front side of the feeding mechanism (50) when the mobile cutting station (30) is in the first position.

3. A tabletting device according to claim 2, wherein the fixing structure (40) comprises:

The swing rod (41) is arranged at the end part of the movable cutting table (30) facing the second position in a swinging way, a clamping block (42) is arranged on the swing rod (41), and the swing rod (41) has a clamping position and a loosening position when swinging;

a first elastic reset piece (43) which is suitable for applying elastic force to the swing rod (41) from the loosening position to the clamping position,

The feeding mechanism (50) is provided with a first striker rod (51), and in the process that the movable cutting table (30) moves from the second position to the first position, the first striker rod (51) pushes the swing rod (41) to swing to the loosening position.

4. A tabletting device according to claim 3, wherein the first striker (51) extends in a horizontal direction, the first striker (51) is swingably arranged on the feeding mechanism (50), the feeding mechanism (50) further comprises a second elastic reset member (52), the second elastic reset member (52) provides an elastic force for swinging downwards to the first striker (51), and the first striker (51) pushes the swing link (41) to swing to the loosening position before the first striker (51) swings to the upper end of the swing link (41) in the process of moving the movable cutting table (30) from the second position to the first position, so that the first elastic reset member (43) drives the swing link (41) to reset to the clamping position.

5. The tabletting device according to claim 4, wherein a roller (44) is provided at an upper end of the swing link (41), a guide slope (511) is provided at a lower surface of an end portion of the first striker (51), and the roller (44) is engaged with the guide slope (511) and the lower surface of the first striker (51).

6. A tabletting apparatus according to claim 3, further comprising a second striker (60), wherein when the movable cutting table (30) is in the second position, the second striker (60) is in abutting engagement with the lower end of the pendulum bar (41) to drive the pendulum bar (41) to swing to the release position.

7. A tabletting device according to any one of claims 2 to 6, wherein the movable cutting table (30) is provided with a cutting station (31), the fixed structure (40) further comprises an adsorption hole (45) arranged on the cutting station (31), a vacuum cavity (70) is fixedly arranged at the bottom of the fixed table (10), and the adsorption hole (45) is communicated with the vacuum cavity (70).

8. The tabletting device according to claim 7, wherein the number of cutting sites (31) is a plurality, the vacuum chamber (70) is arranged on the side of the feeding mechanism (50) facing the second position, and the vacuum chamber (70) covers the number of cutting sites (31) when the movable cutting table (30) is in the second position.

9. The tabletting device according to claim 8, wherein the vacuum chamber (70) comprises a first chamber (71) and a second chamber (72), and the first chamber (71) and the second chamber (72) are arranged in sequence along the direction from the first position to the second position, and the first chamber (71) covers the space of at least two cutting positions (31) of the front side of the feeding mechanism (50), and the negative pressure of the first chamber (71) is larger than the negative pressure of the second chamber (72).

10. A tabletting device according to claim 7, wherein the stationary table (10) is provided with an elongated mating block (11), the mating block (11) forming a first sealing gap with the side edge of the movable cutting table (30); and/or, a supporting structure (12) is arranged on the fixed table (10), the supporting structure (12) is suitable for supporting the movable cutting table (30), the vacuum cavity (70) is formed by a space in the adsorption cover (80), and a second sealing gap is formed between the top side edge of the adsorption cover (80) and the side edge of the supporting structure (12).

11. A tableting apparatus according to claim 10, wherein the first sealing gap and/or the second sealing gap is in the range 0.5mm to 2 mm.

12. The tabletting device according to claim 7, wherein the outside of the cutting station (31) is provided with a slit (32) and a waste outlet (33), the slit (32) and waste outlet (33) being in communication with the vacuum chamber (70).

13. A tabletting device according to any one of claims 2 to 6, wherein the cutting mechanism (20) comprises a laser, the cutting mechanism (20) is fixedly arranged above the fixed table (10), the laser cuts the pole piece strip during movement of the movable cutting table (30) from the first position to the second position, and the manner in which the movable cutting table (30) is moved from the first position to the second position is a step movement.

14. A tabletting device according to any one of claims 2 to 6, wherein the cutting mechanism (20) comprises a laser, the cutting mechanism (20) is fixedly arranged above the fixed table (10), the laser comprises a vibrating mirror, the vibrating mirror is adapted to drive a laser spot to move during the movement of the movable cutting table (30) from the first position to the second position for cutting the pole piece material web, and the manner in which the movable cutting table (30) is moved from the first position to the second position is a continuous movement.

15. A tabletting apparatus according to any one of claims 2 to 6, wherein the cutting mechanism (20) comprises a laser, the cutting mechanism (20) being movably arranged above the stationary table (10), the laser moving and cutting the pole piece strip after the moving cutting table (30) has moved from the first position to the second position.

16. A tabletting apparatus according to any one of claims 2 to 6, wherein the cutting mechanism (20) comprises a laser, the cutting mechanism (20) being movably arranged above the stationary table (10), the laser moving and cutting the pole piece strip during movement of the movable cutting table (30) from the first position to the second position.

17. A tabletting device according to any one of claims 1 to 6, further comprising a dust removal mechanism (90), the dust removal mechanism (90) being provided on the stationary table (10) below the cutting mechanism (20).

18. The tabletting device according to claim 17, wherein the cutting mechanism (20) is fixedly arranged above the fixed table (10), the dust removing mechanism (90) comprises a dust collecting cover (91) and an air knife (92), and the dust collecting cover (91) and the air knife (92) are respectively fixedly arranged at two sides of the fixed table (10).

19. The tabletting device according to claim 17, wherein the cutting mechanism (20) is movably arranged above the stationary table (10), the dust removing mechanism (90) comprises a dust hood (91) and an air knife (92), the dust hood (91) and the air knife (92) are movably arranged on both sides of the stationary table (10), respectively, and the dust hood (91) and the air knife (92) move synchronously with the cutting mechanism (20).

20. The tabletting device according to claim 17, wherein the cutting mechanism (20) is movably arranged above the fixed table (10), the dust removing mechanism (90) comprises a dust collecting cover (91) and a plurality of air knives (92), the opening of the dust collecting cover (91) extends along the moving direction of the cutting mechanism (20), and the plurality of air knives (92) are arranged at intervals along the moving direction of the cutting mechanism (20).

21. A lamination apparatus, comprising:

a lamination table (1);

a tabletting device (2) arranged on the side of the lamination table (1), wherein the tabletting device (2) is a tabletting device as claimed in any one of claims 1 to 20;

And the feeding conveying mechanism (3) is suitable for conveying the pole piece cut on the movable cutting table (30) of the sheet making device (2) to the lamination table (1).

22. The lamination device according to claim 21, characterized in that the movable cutting table (30) has a first position and a second position on the fixed table of the flaking device, the movable cutting table driving the pole piece material strips to move synchronously to a cutting position when the movable cutting table is in the second position, and the second position of the movable cutting table forming a flaking position of the loading handling mechanism.

23. A battery production line comprising a tableting device according to any one of claims 1 to 20, or a lamination device according to claim 21 or 22.