A dressing separation device and roller coating mechanism

Abstract

The invention discloses a dressing separator and a roller coating mechanism. The dressing separator includes a cross bar, and two levers are respectively provided at the left and right ends of the cross bar. The levers are rotatably connected to the cross bar, and the upper sides of the two levers are connected through a telescopic device; the lower sides of the two levers are respectively provided with two clamping blocks, and at least one clamping block is provided with a stopper at the bottom. When in use, the dressing separator is installed on the knife roller of the roller coating machine, the stopper abuts against the coating roller, the telescopic device is adjusted to extend, and the dressing separator is fixed on the knife roller; when the coating roller rotates for coating, the dressing is separated due to the obstruction of the stopper, thereby generating a long strip area without dressing in the coating area, and the coating area is divided into two areas with dressing.

Description

Technical Field

[0001] The invention relates to the technical field of coating devices, and in particular to a dressing separation device and a roller coating mechanism. Background Art

[0002] Roller coaters usually include a coating roller and a knife roller disposed above the coating roller. The thickness of the coating dressing is controlled by adjusting the distance between the coating roller and the knife roller. The coating amount is accurate and defect-free coating can be performed. However, this type of coater coats the entire piece and cannot separate the coating area, which causes certain inconveniences in use.

[0003] For example, in the lithium battery production process, the diaphragm needs to be coated and baked, and then the large diaphragm with a larger width needs to be cut into smaller strips. A roller coater is often used in the coating process. Since the powder after the dressing is dried is prone to powder loss at the edges when it is cut, it causes serious loss of the dressing, and also increases the wear of the cutting tool, reducing the yield and electrical performance of the battery cell. Therefore, there is an urgent need for a dressing separation device to separate the dressing during coating, thereby creating a long strip area without dressing in the coating area. The cutting tool cuts along this area to reduce dressing loss, improve the yield and electrical performance of the battery cell; reduce the frequency of changing the cutting die, and effectively reduce production costs. Invention content

[0004] The technical problem to be solved by the invention is to provide a dressing separation device which can separate the dressings during coating.

[0005] The solution to the technical problem created by the present invention is:

[0006] A dressing separator comprises a cross bar, two levers are respectively provided at the left and right ends of the cross bar, the levers are rotatably connected to the cross bar via a first rotating shaft extending forward and backward, the levers are vertically arranged, the upper sides of the two levers are connected via a telescopic device, and the telescopic device is arranged above the cross bar; two clamping blocks are respectively provided on the lower sides of the two levers, the clamping blocks are arranged on the inner sides of the two levers, and the clamping blocks are arranged below the cross bar, and a stop block is provided at the bottom of at least one clamping block.

[0007] As a further improvement of the above technical solution, the first rotating shaft is arranged on the upper side of the lever.

[0008] As a further improvement of the above technical solution, the telescopic device includes two laterally arranged screws, a connecting block is provided between the two screws arranged at intervals on the left and right, the two screws are respectively threadedly connected to the connecting blocks, the threads of the two screws are set in opposite directions, the two screws are respectively hinged to two levers, and the hinge axis at the hinge extends forward and backward.

[0009] As a further improvement of the above technical solution, the telescopic device includes a laterally arranged sliding rod and a sliding rail, the sliding rod and the sliding rail are connected to each other by sliding left and right, the sliding rod and the sliding rail are connected by a ratchet mechanism, the ratchet mechanism includes a ratchet and a pawl, the ratchet is arranged on the sliding rod, the pawl is arranged on the sliding rail, the pawl is engaged with the ratchet, the ratchet on the ratchet is arranged to face the right, the left end of the sliding rod and the right end of the sliding rail are respectively hinged to two levers, and the hinge axis at the hinge extends forward and backward.

[0010] As a further improvement of the above technical solution, the two clamping blocks are both arc-shaped, and the openings of the two arc-shaped clamping blocks are arranged opposite to each other.

[0011] As a further improvement of the above technical solution, the bottom end of the lever is hinged to the middle part of the clamping block, and the hinge axis at the hinge is extended forward and backward.

[0012] A roller coating mechanism is also provided, comprising the above-mentioned dressing separator, and also comprising a coating roller and a knife roller, both of which are extended forward and backward, and the coating roller is arranged below the knife roller; the knife roller is provided with a dressing separator, the knife roller is arranged between two clamping blocks, the cross bar is arranged above the knife roller, the clamping block abuts against the knife roller, the block abuts against the coating roller, and the block is arranged on the left side and / or right side of the coating roller.

[0013] As a further improvement of the above technical solution, it also includes a base frame, the base frame is provided with a material trough, the material trough is arranged on the right side of the coating roller, the material trough includes a bottom plate, a front enclosing block, a rear enclosing block, a left enclosing block and a right enclosing block, the coating roller is the left enclosing block, the front enclosing block, the rear enclosing block and the bottom plate are all in contact with the coating roller, the bottom plate and the right enclosing block are collectively referred to as a fixed plate, the front enclosing block and the rear enclosing block are both in contact with the fixed plate, and the front enclosing block and the rear enclosing block are respectively connected to the fixed plate for forward and backward sliding.

[0014] As a further improvement of the above technical solution, the coating roller rotates counterclockwise, the stopper is arranged at the upper right side of the coating roller, and a gap is arranged between the stopper and the knife roller.

[0015] The beneficial effects created by the present invention are as follows: when in use, the dressing separator is installed on the knife roller of the roller coater from top to bottom, the position is adjusted so that the stopper abuts against the coating roller, the telescopic device is adjusted to extend, and the two clamping blocks clamp the knife roller under the action of two levers to fix the dressing separator on the knife roller; when the coating roller rotates for coating, the dressing is separated due to the obstruction of the stopper, thereby generating a long strip area without dressing in the coating area, and dividing the coating area into two areas with dressing; after use, the telescopic device is adjusted to shrink, and the dressing separator can be disassembled and used on another roller coater; the dressing separator as an independent component can be directly used in combination with the existing roller coater, without the need to modify the existing roller coater, and has great practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief description of the drawings required for the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of them. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a dressing separation device created by the present invention;

[0018] Figure 2 It is a structural schematic diagram of another embodiment of the dressing separation device created by the present invention;

[0019] Figure 3 yes Figure 2 An enlarged schematic diagram of the A direction;

[0020] Figure 4 It is a structural front view of an embodiment of a roller coating mechanism created by the present invention;

[0021] Figure 5 It is a top view of the structure of an embodiment of a roller coating mechanism created by the present invention. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the concept, specific structure and technical effects of the invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of them. Based on the embodiments of the invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the invention. In addition, all the connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connecting accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0023] Reference Figure 1 , which is an embodiment of the dressing separation device created by the present invention, specifically:

[0024] The dressing separation device includes a cross bar 06, and two levers 03 are respectively provided at the left and right ends of the cross bar 06. The levers 03 are rotatably connected to the cross bar 06 through a first rotating shaft 02 extending forward and backward. The levers 03 are vertically arranged, and the upper sides of the two levers 03 are connected by a telescopic device, and the telescopic device is arranged above the cross bar 06; two clamping blocks 04 are respectively provided on the lower sides of the two levers 03, and the clamping blocks 04 are arranged on the inner sides of the two levers 03, and the clamping blocks 04 are arranged below the cross bar 06, and a stop block 05 is provided at the bottom of at least one clamping block 04. When in use, the dressing separator is installed on the knife roller 11 of the roller coater from top to bottom, the position is adjusted so that the stopper 05 abuts against the coating roller 12, the telescopic device is adjusted to extend, and the two clamping blocks 04 clamp the knife roller 11 under the action of the two levers 03, so that the dressing separator is fixed on the knife roller 11; when the coating roller 12 rotates for coating, the dressing is separated due to the obstruction of the stopper 05, thereby generating a long strip area without dressing in the coating area, and dividing the coating area into two areas coated with dressing; the coating area can also be divided into multiple areas coated with dressing by arranging multiple dressing separators side by side; after use, the telescopic device is adjusted to shrink, and the dressing separator can be disassembled and used on another roller coater; the dressing separator can be used as an independent component in combination with the existing roller coater directly, without the need to modify the existing roller coater, and has great practical use value.

[0025] As a further preferred embodiment, the first rotating shaft 02 is disposed on the upper side of the lever 03. In this way, the connection between the telescopic device and the lever 03 is the short arm end of the lever 03, and the clamping block 04 is disposed at the long arm end of the lever 03. When the telescopic device is extended or shortened by a small length, the clamping block 04 can have a large displacement, which is convenient for installing or removing the dressing separator.

[0026] As a further preferred embodiment, the telescopic device comprises two transversely arranged screw rods 07, a connecting block 01 is arranged between the two screw rods 07 arranged at intervals on the left and right, the two screw rods 07 are respectively threadedly connected to the connecting block 01, the threads of the two screw rods 07 are arranged in opposite directions, the two screw rods 07 are respectively hinged to the two levers 03, and the hinge axis at the hinge extends forward and backward. In this way, rotating the connecting block 01 can make the two screw rods 07 move closer to or away from each other, so as to achieve the purpose of shortening or lengthening the telescopic device, with a simple structure and easy operation.

[0027] In order to make the clamping block 04 better against the knife roller 11 and make the connection between the dressing separator and the knife roller 11 less prone to loosening and more stable, the two clamping blocks 04 are both arc-shaped, and the openings of the two arc-shaped clamping blocks 04 are arranged opposite to each other.

[0028] As a further preferred embodiment, the bottom end of the lever 03 is hinged to the middle of the clamping block 04, and the hinge axis at the hinge extends forward and backward. In this way, the clamping block 04 can be flipped downward, and the installation opening between the two arc-shaped clamping blocks 04 can be opened, so that the dressing separator can be installed on the knife roller 11.

[0029] Reference Figure 2 and Figure 3 This is another embodiment of the dressing separation device created by the present invention, and its telescopic device adopts a ratchet 09 mechanism to achieve the purpose of telescoping. The telescopic device includes a laterally arranged slide bar 08 and a slide rail 17, and the slide bar 08 is connected to the slide rail 17 for left and right sliding. The slide bar 08 and the slide rail 17 are connected through the ratchet 09 mechanism, and the ratchet 09 mechanism includes a ratchet 09 and a pawl 10, the ratchet 09 is arranged on the slide bar 08, and the pawl 10 is arranged on the slide rail 17, and the pawl 10 is engaged with the ratchet 09, and the ratchet on the ratchet 09 is arranged to face the right, and the left end of the slide bar 08 and the right end of the slide rail 17 are respectively hinged to two levers 03, and the hinge axis at the hinge extends forward and backward. Lift the ratchet 10, and the telescopic device can be shortened. Release the ratchet 10, and the telescopic device can only be extended but not shortened. In this way, when the dressing separator is installed on the knife roller 11, the two clamping blocks 04 can be directly held by hand, and the two clamping blocks 04 can be closed after aligning the positions to complete the installation, which is convenient and quick.

[0030] Reference Figure 4 and Figure 5 , which is an embodiment of the roller coating mechanism created by the present invention, specifically:

[0031] The roller coating mechanism includes the above-mentioned dressing separation device, and also includes a coating roller 12 and a knife roller 11, both of which are extended forward and backward, and the coating roller 12 is arranged below the knife roller 11; the knife roller 11 is provided with a dressing separation device, the knife roller 11 is arranged between two clamping blocks 04, the cross bar 06 is arranged above the knife roller 11, the clamping block 04 is in contact with the knife roller 11, the stopper 05 is in contact with the coating roller 12, and the stopper 05 is arranged on the left side and / or right side of the coating roller 12. When the coating roller 12 rotates for coating, the dressing is separated due to the obstruction of the stopper 05, thereby generating a long strip area without dressing in the coating area, and dividing the coating area into two areas with dressing.

[0032] As a further preferred embodiment, it also includes a base frame, a material trough is provided on the base frame 13, the material trough is arranged on the right side of the coating roller 12, the material trough includes a bottom plate, a front enclosing block 15, a rear enclosing block 16, a left enclosing block and a right enclosing block, the coating roller 12 is the left enclosing block, the front enclosing block 15, the rear enclosing block 16 and the bottom plate are all in contact with the coating roller 12, the bottom plate and the right enclosing block are collectively referred to as a fixed plate 14, the front enclosing block 15 and the rear enclosing block 16 are both in contact with the fixed plate 14, and the front enclosing block 15 and the rear enclosing block 16 are respectively connected to the fixed plate 14 for forward and backward sliding. In this way, by adjusting the positions of the front enclosing block 15 and the rear enclosing block 16 respectively, the width of the material trough and its position relative to the coating roller 12 can be adjusted, and the overall width and position of the coating area can be adjusted; due to the high viscosity of the dressing, when the front enclosing block 15 and the rear enclosing block 16 slide back and forth on the fixed plate 14, the dressing will not flow out at the abutment.

[0033] As a further preferred embodiment, the coating roller 12 rotates counterclockwise, the stopper 05 is arranged on the upper right side of the coating roller 12, and a gap is arranged between the stopper 05 and the knife roller 11. When the coating roller 12 rotates, due to the friction, a force is applied to the stopper 05. By setting the coating roller 12 to rotate counterclockwise, the stopper 05 is arranged on the upper right side of the coating roller 12, and a gap is arranged between the stopper 05 and the knife roller 11, when the coating roller 12 rotates, a force is applied to the stopper 05 to the upper left, and this force is directly transmitted to the knife roller 11 through the clamping block 04 located on the right side. Other components of the dressing separator do not need to bear this force, and the hinge of the dressing separator does not need to bear this force. The structure is reasonable and firm, and the dressing separator is not easy to loosen or damage; the stopper 05 does not directly contact the knife roller 11, and the stopper 05 will not be involved in the gap between the knife roller 11 and the coating roller 12.

[0034] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A roller coating mechanism, characterized in that: The dressing separator comprises a cross bar, and levers are respectively arranged at the left and right ends of the cross bar, and the levers are rotatably connected with the cross bar through a first rotating shaft extending forward and backward, and the first rotating shaft is arranged on the upper side of the lever, and the lever is arranged vertically, and the upper sides of the two levers are connected through a telescopic device, and the telescopic device is arranged above the cross bar; two clamping blocks are respectively arranged on the lower sides of the two levers, and the clamping blocks are arranged on the inner sides of the two levers, and the clamping blocks are arranged below the cross bar, and a stopper is arranged at the bottom of at least one clamping block; The two clamping blocks are both arc-shaped, and the openings of the two arc-shaped clamping blocks are arranged opposite to each other; the bottom end of the lever is hinged to the middle of the clamping block, and the hinge axis at the hinge extends forward and backward; The telescopic device comprises a sliding rod and a sliding rail arranged transversely, the sliding rod and the sliding rail are connected to each other by sliding left and right, the sliding rod and the sliding rail are connected by a ratchet mechanism, the ratchet mechanism comprises a ratchet and a pawl, the ratchet is arranged on the sliding rod, the pawl is arranged on the sliding rail, the pawl is engaged with the ratchet, the ratchet teeth on the ratchet are arranged facing rightward, the left end of the sliding rod and the right end of the sliding rail are respectively hinged to two levers, and the hinge shaft at the hinge is extended forward and backward; The roller coating mechanism also includes a coating roller and a knife roller, both of which are extended forward and backward, and the coating roller is arranged below the knife roller; a dressing separator is arranged on the knife roller, and the knife roller is arranged between two clamping blocks, and the cross bar is arranged above the knife roller, the clamping block abuts against the knife roller, and the block abuts against the coating roller, and the block is arranged on the upper right side of the coating roller, and a gap is arranged between the block and the knife roller, and the bottom surface of the block extends upward from right to left, so that the contact surface between the block and the coating roller extends upward from right to left, and the rotation direction of the coating roller is counterclockwise; The roller coating mechanism also includes a base frame, on which a material trough is provided, and the material trough is arranged on the right side of the coating roller. The material trough includes a bottom plate, a front enclosing block, a rear enclosing block, a left enclosing block and a right enclosing block. The coating roller is the left enclosing block, and the front enclosing block, the rear enclosing block and the bottom plate are all in contact with the coating roller. The bottom plate and the right enclosing block are collectively referred to as a fixed plate, and the front enclosing block and the rear enclosing block are both in contact with the fixed plate, and the front enclosing block and the rear enclosing block are respectively connected to the fixed plate for forward and backward sliding.

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