Thermal compounding pretreatment device for pole piece

Abstract

The utility model discloses a pole piece thermal compounding pretreatment device which comprises three groups of steel belt conveying assemblies and a piece conveying support used for supporting the steel belt conveying assemblies, and one group of steel belt conveying assemblies is in lap joint with the opposite end parts of the other two groups of steel belt conveying assemblies; each group of steel belt conveying assembly comprises a pair of conveying rollers and a steel belt wound on the conveying rollers, and vacuum adsorption holes are formed in the steel belt; a vacuum area is defined by the vacuum adsorption plates and the vacuum isolation plates between the wound steel belts, so that the conveying face is a vacuum adsorption face used for adsorbing the pole pieces. When the structure is used for processing the positive and negative surfaces of the pole piece, a pole piece overturning device is not needed, the pole piece is linearly conveyed along a conveying path, conveying is stable, and equipment is simple.

Description

Technical Field

[0001] The utility model relates to a pole piece processing device, in particular to a pole piece thermal composite pretreatment device. Background Art

[0002] In the prior art, on the conveying path before the pole piece undergoes thermal composite, it is necessary to design static elimination and dust removal for both the front and back sides of the pole piece to ensure that the pole piece remains clean and static-free during the conveying process, and a preheating device is arranged downstream of the conveying path to improve the temperature stability and thermal composite quality of the pole piece during the thermal composite process. However, in the prior art, when designing static elimination and dust removal for both the front and back sides of the pole piece on the steel belt conveying path, it is necessary to flip the pole piece to process both sides, that is, first process the front side of the pole piece through the static elimination and dust removal mechanism above the pole piece, then flip the pole piece through the flipping device to expose the unprocessed back side of the pole piece, process the back side of the pole piece through the static elimination and dust removal mechanism, and finally the pole piece returns to the normal conveying path and completes the pretreatment process through the preheating device. This process has complex equipment, the pole piece is prone to deviation, and continuous adjustment is required. Summary of the Invention

[0003] To solve the above technical problems, the utility model provides a pole piece thermal composite pretreatment device.

[0004] The technical solution of the utility model is: including a steel belt conveying component and a sheet feeding support for supporting the steel belt conveying component, there are three groups of the steel belt conveying components, and one group of the steel belt conveying components is lap-connected to the opposite ends of the other two groups of steel belt conveying components;

[0005] Each group of the steel belt conveying components includes a pair of conveying rollers and a steel belt wound around the conveying rollers, and vacuum adsorption holes are arranged on the steel belt; a vacuum area is formed by enclosing with a vacuum adsorption plate and a vacuum isolation plate between each wound steel belt, and the relatively steel belt surfaces between two lap-connected steel belt conveying components are defined as the conveying surface, the vacuum adsorption plate is attached to the inner side of the conveying surface, and a butt joint channel for the pole piece is formed between the two conveying surfaces for butt joint conveying of the pole piece between two groups of steel belt conveying components;

[0006] A pole piece preheating mechanism for heating the pole piece is arranged at the downstream position of the conveying surface.

[0007] Its further technical solution is: a pole piece dust removal mechanism aligned with the conveying surface is arranged on the sheet feeding support.

[0008] Its further technical solution is: a pole piece static elimination mechanism aligned with the conveying surface is arranged on the sheet feeding support.

[0009] Its further technical solution is: The steel belt conveying assembly further includes a conveying roller support plate arranged along the conveying direction. Both ends of the conveying roller are rotatably connected to the conveying roller support plate through bearings. The ends of a pair of conveying rollers are connected to the same set of conveying roller support plates. The steel belt conveying assembly is connected to the sheet feeding bracket through the conveying roller support plate.

[0010] Its further technical solution is: Positioning holes are arranged on both sides of the long side of the steel belt. At the same time, protruding limit pins are provided at the circumferential positions of the conveying rollers corresponding to the positioning holes. The limit pins are inserted into the positioning holes during the rotation of the conveying rollers.

[0011] Its further technical solution is: The pole piece dust removal mechanism includes a vacuum dust collection cover with a hollow structure inside and an air knife arranged in the hollow structure. The air outlet of the air knife is arranged along the length direction of the vacuum dust collection cover. The vacuum dust collection cover is provided with an air outlet through hole corresponding to the air outlet and a dust through hole for dust to pass through.

[0012] Its further technical solution is: The vacuum dust collection cover is also provided with a vacuum connector connected to an external vacuum pumping device.

[0013] Its further technical solution is: The pole piece preheating mechanism includes a preheating plate arranged along the pole piece conveying direction. Heat pipes for providing heat to the heating surface of the preheating plate are inserted into the preheating plate. Driven by the transmission of the pole piece by the steel belt, the heating surface of the preheating plate will cover the surface of the pole piece.

[0014] Its further technical solution is: Along the conveying path, a steel belt lifting mechanism is provided on the side of the middle set of steel belt conveying assemblies. This set of steel belt conveying assemblies is connected to the lifting output end of the steel belt lifting mechanism. Under the action of the lifting driving force of the steel belt lifting mechanism, this set of steel belt conveying assemblies is displaced vertically relative to the other two sets of steel belt conveying assemblies.

[0015] Its further technical solution is: The steel belt lifting mechanism includes a lifting support plate. A lifting slide rail is vertically arranged on the lifting support plate. The middle set of steel belt conveying assemblies is slidably connected to the lifting slide rail under the action of the lifting driving force of the steel belt lifting mechanism.

[0016] The beneficial technical effect of the present utility model is: By setting the overlapping cross-section of the three sets of steel belt conveying assemblies to be convex and designing the conveying surface as a vacuum adsorption surface, the conveying surfaces of the three sets of steel belt conveying assemblies are located on the same plane, and a docking channel for the pole piece is formed between the two conveying surfaces for the pole piece to pass through. The front and back sides of the pole piece can be processed throughout the process and returned to the normal conveying path; the pole piece is stably conveyed and the equipment is simple. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall front structure of the present utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the back side of the present utility model;

[0019] Figure 3 It is an exploded schematic diagram of the steel belt conveying assembly of the present utility model;

[0020] Figure 4 It is a schematic diagram of the steel belt structure of the present utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the pole piece dust removal mechanism of the present utility model;

[0022] Figure 6 It is a schematic diagram of the preheating plate of the present utility model;

[0023] Figure 7 It is a schematic diagram of the steel belt dust removal mechanism of the present utility model;

[0024] Among them: 1. Sheet feeding support; 11. Vertical support plate; 2. Pole piece dust removal mechanism; 21. Vacuum dust collection cover; 211. Air outlet through hole; 212. Dust through hole; 22. Air knife; 3. Pole piece static elimination mechanism; 4. Pole piece preheating mechanism; 41. Preheating plate; 42. Heat pipe; 5. Steel belt conveying assembly; 51. First group of steel belt conveying assemblies; 52. Second group of steel belt conveying assemblies; 53. Third group of steel belt conveying assemblies; 54. Conveying roller; 541. Positioning nail; 55. Steel belt; 551. Positioning hole; 552. Vacuum adsorption hole; 56. Conveying roller support plate; 57. Vacuum adsorption plate; 58. Vacuum isolation plate; 581. Vacuum bottom plate; 582. Vacuum support plate;

[0025] 6. Steel belt lifting mechanism; 61. Lifting support plate; 7. Steel belt dust removal mechanism; 71. Cylinder body; 72. Brush teeth; 73. Brush sweeping dust collection cover. Specific embodiments

[0026] In order to be able to more clearly understand the technical means of the present utility model and implement it in accordance with the content of the specification, the following further describes the specific embodiments of the present utility model in detail with reference to the drawings and embodiments. The following embodiments are used to illustrate the present utility model but not to limit the scope of the present utility model.

[0027] As Figures 1 to 2 shown, the present utility model relates to a pole piece thermal composite pretreatment device, which is used to remove static electricity, dust and preheat the front and back sides of the pole piece to be thermally compounded to ensure uniform temperature before the pole piece enters the thermal compounding process and ensure the quality of the discharged material after thermal compounding; the device includes a sheet feeding support 1, a sheet feeding assembly arranged on the sheet feeding support 1, a pole piece dust removal mechanism 2, a pole piece static elimination mechanism 3 and a pole piece preheating mechanism 4.

[0028] The sheet feeding assembly comprises three groups of steel belt conveying assemblies 5 which are overlapped with each other, and the cross-section of the overlapped three groups of steel belt conveying assemblies 5 is convex, that is, along the conveying path, the first group of steel belt conveying assemblies 51 and the third group of steel belt conveying assemblies 53 are located in the same horizontal plane and are arranged at intervals, and the two ends of the second group of steel belt conveying assemblies 52 are overlapped and connected to the opposite ends of the first group of steel belt conveying assemblies 51 and the third group of steel belt conveying assemblies 53 respectively; each group of steel belt conveying assemblies 5 comprises a pair of conveying rollers 54, a steel belt 55 wound around the conveying rollers 54 and a conveying roller support plate 56 for supporting the conveying rollers 54, and the steel belt conveying assembly 5 is connected to the sheet feeding bracket 1 through the conveying roller support plate 56, as shown in FIG. Figure 3 .

[0029] Specifically, the conveying roller support plate 56 is arranged along the conveying direction, and both ends of the conveying roller 54 are rotatably connected to the conveying roller support plate 56 through bearings. The ends of the pair of conveying rollers 54 are connected to the same group of conveying roller support plates 56 to maintain the working position of the pair of conveying rollers 54.

[0030] Further, such as Figure 4 The steel belt 55 is arranged with positioning holes 551 on both sides along the long sides, and at the same time, protruding limiting pins 541 are set at the circumferential positions of the conveying roller 54 corresponding to the positioning holes 551. When the conveying roller 54 rotates, the limiting pins 541 will be embedded in the positioning holes 551, thereby fixing the steel belt 55 on the surface of the conveying roller 54.

[0031] Furthermore, the steel belt 55 is provided with vacuum adsorption holes 552, and a vacuum area is formed between each wound steel belt 55 by vacuum adsorption plates 57 and vacuum isolation plates 58, and the vacuum adsorption area is connected to an external vacuum pumping device through a vacuum pipeline. The steel belt surfaces facing each other between the overlapping steel belt conveying components 5 are defined as conveying surfaces, and the steel belt surfaces separated between the overlapping steel belt conveying components 5 are defined as mating surfaces; the vacuum adsorption plates 57 are attached to the inner side of the conveying surfaces, and a butt-joint channel for the pole pieces is formed between the two conveying surfaces for butt-joint conveying of the pole pieces between the two sets of steel belt conveying components 5.

[0032] Furthermore, the through holes on the vacuum adsorption plate 57 correspond to the vacuum adsorption holes 552; the vacuum isolation plate 58 includes a vacuum bottom plate 581 and a vacuum support plate 582, the vacuum bottom plate 581 is attached to the inner side of the mating surface to seal the vacuum adsorption holes 552 on the mating surface; the vacuum support plate 59 is used to support the vacuum adsorption plate 57 and the vacuum bottom plate 581.

[0033] The conveying roller 54 rotates under the drive of the conveying drive member, and drives the steel belt 55 and the pole piece to move in the conveying direction. In this embodiment, the conveying drive member adopts a direct drive motor. Under the vacuum adsorption of the steel belt 55, the pole piece is tightly attached to the conveying surface during the movement.

[0034] The pole piece dust removal mechanism 2 and the pole piece static elimination mechanism 3 are arranged on the conveying surfaces of the first group of steel belt conveying components 51 and the second group of steel belt conveying components 52. After the front side of the pole piece is dusted and static eliminated on the conveying surface of the first group of steel belt conveying components 51, it enters the conveying surface of the second group of steel belt conveying components 52 through the docking channel and the back side is dusted and static eliminated.

[0035] Specifically, as Figure 5 , the pole piece dust removal mechanism 2 includes a vacuum dust collection cover 21 with a hollow structure inside and an air knife 22 arranged in the hollow structure. An air inlet joint 221 penetrating through the vacuum dust collection cover 21 is arranged at the air inlet end of the air knife 22. The air outlet of the air knife 22 is arranged along the length direction of the vacuum dust collection cover 21. Air outlet through holes 211 corresponding to the air outlet and dust through holes 212 for dust to pass through are arranged on the vacuum dust collection cover 21. The dust through holes 212 can be arranged along the length direction of the vacuum dust collection cover 21 and are respectively arranged on both sides of the air outlet through holes 211 to achieve a better dust removal effect. A vacuum joint connected to an external vacuum pumping device is also arranged at the end of the vacuum dust collection cover 21. The vacuum joint is used to pump the inside of the vacuum dust collection cover into a vacuum state to suck the blown dust into the vacuum dust collection cover 21 for collection, prevent dust from overflowing, and avoid secondary pollution.

[0036] After the air from the high-pressure blower enters the air knife 22, it is blown out at a high speed in a thin air sheet to form a thin, high-strength, and large-airflow impact air curtain to achieve the effect of blowing and dusting the pole piece during transportation.

[0037] The pole piece static elimination mechanism 3 uses a pulsed AC ion bar. By alternately applying positive and negative DC high voltages to the electrode needles, a large number of positive and negative air ions are generated to neutralize positive and negative static charges, achieving the purpose of efficiently and reliably eliminating static electricity on the surface of an object. After passing through the pole piece static elimination mechanism, the static electricity on the pole piece can be completely removed.

[0038] Such as Figure 6 , the pole piece preheating mechanism 4 is located on the conveying surface of the third steel belt conveying component 53 and includes a preheating plate 41 arranged along the pole piece conveying direction. The preheating plate 41 has a pressing plane in contact with the steel belt. A plurality of heat pipes 42 for providing uniform heat to the surface of the preheating plate 41 are uniformly inserted in the preheating plate 41. When the steel belt 55 drives the pole piece to move, the heating surface of the preheating plate 41 will cover the surface of the pole piece to preheat the pole piece before it enters the next process.

[0039] The sheet feeding support 1 further includes a vertical support plate 11 for supporting the sheet feeding component. The first group of steel belt conveying components 51 and the third group of steel belt conveying components 53 are respectively connected to the vertical support plate 11 through corresponding conveying roller support plates 56.

[0040] Further, a steel belt lifting mechanism 6 is also provided on the side of the second group of steel belt conveying assemblies 52. By driving and adjusting the steel belt lifting mechanism 6, the second group of steel belt conveying assemblies 52 move in the vertical direction to adjust the pressure of the docking channel on the pole piece.

[0041] In this embodiment, the lifting driving force of the steel belt lifting mechanism 6 is provided by a lifting cylinder. The lifting cylinder is fixedly arranged on a lifting support plate 61 on the side of the second group of steel belt conveying assemblies 52. A lifting slide rail is vertically arranged on the lifting support plate 61. The second group of steel belt conveying assemblies 52 is fixedly connected to the piston output end of the lifting cylinder through a conveying roller support plate 56. The second group of steel belt conveying assemblies 52 is driven by the piston stroke of the lifting cylinder to move vertically and is slidably connected to the lifting slide rail.

[0042] Further, each group of the steel belt conveying assemblies 5 is provided with a steel belt dust removal mechanism 7, as Figure 7 , which includes a cylinder body 71 extending perpendicular to the conveying direction, a cylinder body driving part for driving the cylinder body 71 to rotate, and brush teeth 72 arranged along the length direction of the cylinder body 71. The brush teeth 72 are arranged in a star shape on the outer periphery of the cylinder body 71. One end of the cylinder body 71 is in transmission connection with the output end of the driving part. During the rotation of the cylinder body 71 driven by the driving part, the brush teeth 72 brush the steel belt 55. The dust brushed is collected and transferred through a brush sweeping dust collection cover 73 to complete the dust removal of the corresponding steel belt 55 and keep the steel belt 55 clean.

[0043] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A pole piece thermal composite pretreatment device, comprising a steel belt conveyor assembly (5) and a pole piece feeding bracket (1) for supporting the steel belt conveyor assembly (5), characterized in that: The steel belt conveyor components (5) are provided in three groups, wherein one group of the steel belt conveyor components (5) is overlapped and connected to the opposite ends of the other two groups of the steel belt conveyor components (5); Each set of steel belt conveyor assemblies (5) comprises a pair of conveyor rollers (54) and a steel belt (55) wound on the conveyor rollers (54), and the steel belt (55) is provided with a vacuum adsorption hole (552); a vacuum area is formed between each wound steel belt (55) by a vacuum adsorption plate (57) and a vacuum isolation plate (58), and the opposite steel belt surfaces between the two overlapping steel belt conveyor assemblies (5) are defined as conveying surfaces, and the vacuum adsorption plate (57) is attached to the inner side of the conveying surface, and a butt-jointing channel for the electrode piece is formed between the two conveying surfaces for butt-jointing and conveying of the electrode piece between the two sets of steel belt conveyor assemblies (5); A pole piece preheating mechanism (4) for heating the pole piece is provided at a downstream position of the conveying surface.

2. The electrode thermal composite pretreatment device according to claim 1, characterized in that: The sheet feeding bracket (1) is provided with a sheet dust removal mechanism (2) aligned with the conveying surface.

3. The electrode thermal composite pretreatment device according to claim 1, characterized in that: The sheet feeding bracket (1) is provided with a pole sheet static removal mechanism (3) aligned with the conveying surface.

4. The electrode thermal composite pretreatment device according to claim 1, characterized in that: The steel belt conveyor assembly (5) also includes a conveyor roller support plate (56) arranged along the conveying direction, and the two ends of the conveyor roller (54) are rotatably connected to the conveyor roller support plate (56) through bearings. The ends of a pair of conveyor rollers (54) are connected to the same group of conveyor roller support plates (56). The steel belt conveyor assembly (5) is connected to the sheet feeding bracket (1) through the conveyor roller support plate (56).

5. The electrode thermal composite pretreatment device according to claim 1, characterized in that: Positioning holes (24) are arranged on both sides of the long side of the steel belt (55), and protruding limiting pins are provided at the circumferential positions of the conveying roller (54) corresponding to the positioning holes (24), and the limiting pins are embedded in the positioning holes (24) during the rotation of the conveying roller (54).

6. The electrode thermal composite pretreatment device according to claim 2, characterized in that: The electrode dust removal mechanism (2) comprises a vacuum dust collecting hood (21) with a hollow structure inside and a wind knife (22) arranged in the hollow structure, the air outlet of the wind knife (22) is arranged along the length direction of the vacuum dust collecting hood (21), and the vacuum dust collecting hood (21) is provided with an air outlet hole (211) corresponding to the air outlet and a dust through hole (212) for dust to pass through.

7. The electrode thermal composite pretreatment device according to claim 6, characterized in that: The vacuum dust collecting hood (21) is also provided with a vacuum joint connected to an external vacuum extraction device.

8. The electrode thermal composite pretreatment device according to claim 1, characterized in that: The electrode preheating mechanism (4) comprises a preheating plate (41) arranged along the electrode conveying direction, a heat pipe (42) is inserted into the preheating plate (41) for providing heat to the heating surface of the preheating plate (41), and the heating surface of the preheating plate (41) covers the surface of the electrode when the electrode is conveyed by the steel belt (55).

9. The electrode thermal composite pretreatment device according to claim 1, characterized in that: Along the conveying path, a steel belt lifting mechanism (6) is provided on the side of a middle group of steel belt conveying assemblies (5), and the steel belt conveying assemblies (5) are connected to the lifting output end of the steel belt lifting mechanism (6). Under the lifting driving force of the steel belt lifting mechanism (6), the steel belt conveying assemblies (5) are displaced in the vertical direction relative to the other two groups of steel belt conveying assemblies (5).

10. The electrode thermal composite pretreatment device according to claim 9, characterized in that: The steel belt lifting mechanism (6) comprises a lifting support plate (61), on which a lifting slide rail is vertically arranged, and a middle group of steel belt conveying components (5) are slidably connected to the lifting slide rail under the action of the lifting driving force of the steel belt lifting mechanism (6).

Images