CN118205026A - Fixed-length rolling cutting device for flexible material - Google Patents

Fixed-length rolling cutting device for flexible material Download PDF

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Publication number
CN118205026A
CN118205026A CN202410529174.0A CN202410529174A CN118205026A CN 118205026 A CN118205026 A CN 118205026A CN 202410529174 A CN202410529174 A CN 202410529174A CN 118205026 A CN118205026 A CN 118205026A
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CN
China
Prior art keywords
cutter
anvil
roller
roll
blade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202410529174.0A
Other languages
Chinese (zh)
Inventor
郭尚接
余富才
廖尚滨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SANMING PNV MACHINERY CO Ltd
Original Assignee
SANMING PNV MACHINERY CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SANMING PNV MACHINERY CO Ltd filed Critical SANMING PNV MACHINERY CO Ltd
Priority to CN202410529174.0A priority Critical patent/CN118205026A/en
Publication of CN118205026A publication Critical patent/CN118205026A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/143—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
    • B26D1/15—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with vertical cutting member
    • B26D1/151—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with vertical cutting member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/02—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The invention relates to a fixed-length rolling cutting device for flexible materials, which comprises a traction mechanism, a material guide wheel, a die frame, a cutter roller, an anvil roller and a driving mechanism, wherein the cutter roller is arranged on the die frame, the cutter roller comprises a first roller body and a first mandrel, the first roller body is sleeved on the first mandrel, the first roller body comprises a first matrix and a blade, the anvil roller is arranged on the die frame, the anvil roller is positioned on one side of the cutter roller, the anvil roller comprises a second roller body and a second mandrel, the second roller body is sleeved on the second mandrel, and the second roller body comprises a second matrix and a cutter anvil.

Description

Fixed-length rolling cutting device for flexible material
Technical Field
The invention relates to the technical field of rotary hobbing, in particular to a fixed-length hobbing device for flexible materials.
Background
The existing new energy battery winding machine is characterized in that a fixed-length cutting process of a positive electrode diaphragm material and a negative electrode diaphragm material is generally adopted, a tracking shearing fixed-length tracking cutting process is adopted, a tracking cutting mechanism needs to be started quickly, namely shearing and loosening are performed quickly, the production line speed is limited under the influence of the actions, the production efficiency cannot be further improved generally at about 100m/min, the fixed-length dimensional accuracy is not high, and meanwhile, more energy is wasted due to longer round trip.
Disclosure of Invention
Therefore, it is necessary to provide a fixed-length rolling cutting device for flexible materials, which is used for solving the technical problems of low production efficiency, low fixed-length dimensional accuracy and waste of more materials in the fixed-length following cutting process in the prior art.
To achieve the above object, the present invention provides a fixed length slitting mill for flexible materials, comprising:
the traction mechanism is used for conveying the flexible material to the back-end equipment at a preset speed;
The guide wheel is positioned behind the traction mechanism;
the die carrier is positioned behind the material guide wheel;
The cutter roller is arranged on the die frame and comprises a first roller body and a first mandrel, the first roller body is sleeved on the first mandrel, the first roller body comprises a first base body and a blade, the first base body is provided with a first groove along the axial direction of the first roller body, the blade is arranged in the first groove along the axial direction of the first roller body, and the tip of the blade protrudes out of the outer circle of the first base body;
The anvil roll is arranged on the die frame, the anvil roll is positioned on one side of the cutter roll, the traction mechanism and the guide wheel are used for conveying flexible materials between the cutter roll and the anvil roll at a preset speed, the anvil roll comprises a second roll body and a second mandrel, the second roll body is sleeved on the second mandrel, the second roll body comprises a second base body and a cutter anvil, more than two air suction holes are formed in the second base body, a second groove is formed in the second base body along the axial direction of the second roll body, the cutter anvil is arranged in the second groove along the axial direction of the second roll body, and the cutter anvil protrudes out of the outer circle of the second base body;
The cutter is characterized in that a cutter blade arranged on the outer circle of the cutter roll and a cutter anvil arranged on the outer circle of the anvil roll are in zero-clearance contact with the surface of the outer circle of the cutter anvil once after relatively rotating for a preset number of turns, so that the cutting of the flexible material with a certain length is accurately completed; and
The air distribution plate is arranged on the end face of the anvil roll and is used for providing negative pressure or positive pressure for the air suction holes of the anvil roll so that the anvil roll adsorbs or releases the flexible material.
As one implementation mode of the invention, the fixed-length rolling cutting device further comprises a driving mechanism and a transmission mechanism, wherein the driving mechanism is used for driving the cutter roller to rotate, the cutter roller is in transmission connection with the anvil roller through the transmission mechanism, so that the cutter roller and the anvil roller keep a linear speed in a fixed proportion to rotate relatively, the transmission ratio of the transmission mechanism is equal to the diameter of the first roller body of the cutter roller and the diameter of the second roller body of the anvil roller, and the fixed-length rolling cutting device is used for realizing zero clearance contact between a cutter point of a cutter arranged on the excircle of the cutter roller and the surface of the excircle of the cutter anvil roller once after the cutter point of the cutter is in relative rotation for a preset number of turns, so as to accurately finish cutting of a flexible material with a certain length.
As one embodiment of the invention, the first roller body further comprises a cutter pressing block, a cutter pad and a first fastening piece, wherein the cutter pressing block, the cutter blade and the cutter pad are sequentially arranged from outside to inside, and the cutter pressing block, the cutter blade and the cutter pad are fixed in the first groove through the first fastening piece.
In one embodiment of the present invention, the second substrate is provided with at least two first air suction holes arranged along an axial direction of the second roller body, and the first air suction holes are mutually communicated.
In one embodiment of the present invention, the second substrate is provided with two or more second air intake holes arranged along the circumferential direction of the second roller body, and two adjacent first air intake holes are communicated with one second air intake hole.
As an embodiment of the present invention, the knife anvil is fixed in the second groove by screws, riveting, welding, and bonding.
As one embodiment of the present invention, the fixed-length slitting mill further includes two driving units, and the two driving units respectively drive the cutter roll and the anvil roll to rotate, so that the linear speed of the cutter roll and the anvil roll in a fixed ratio is kept to rotate relatively.
As one embodiment of the invention, the cross section of the tip of the blade is V-shaped, and the top of the anvil is provided with a smooth contact surface.
As an embodiment of the present invention, the fixed-length slitting mill further includes a pressurizing mechanism disposed on the die frame, the pressurizing mechanism being configured to drive the cutter roll toward or away from the anvil roll and to apply a working pressure. The guide wheel is arranged on one side of the anvil roll, and the traction mechanism is arranged on one side of the guide wheel.
As one embodiment of the invention, the fixed-length rolling and cutting device is applied to rolling and cutting of positive and negative electrode diaphragm materials of new energy batteries.
Compared with the prior art, the technical scheme is characterized in that the flexible material enters the anvil roll with the adsorption holes through the traction mechanism and the guide wheel, the anvil roll is used for adsorbing and conveying the flexible material, the flexible material enters between the cutter roll and the anvil roll according to the preset speed, the rotation linear speed of the anvil roll is the same as the material conveying speed, the cutter roll and the anvil roll relatively rotate according to the linear speed of the fixed proportion, and the cutting of the flexible material with a certain length is accurately completed after the blades arranged on the outer circle of the cutter roll and the cutter anvil arranged on the outer circle of the anvil roll relatively rotate for a preset number of circles, and the cutter tips of the blades are in zero-clearance contact with the outer circle surface of the cutter anvil roll once; because the cutter point of the cutter roller blade and the outer circle surface of the anvil roller are higher than the position of the matrix, the cutter point of the blade can be contacted with the outer circle surface of the anvil to generate cutting action only when the blade rotates to the position opposite to the anvil, and the rest time can not be contacted; the cutter roller and anvil roller body with smaller diameter can be used for realizing quick and accurate cutting of the flexible material with longer length, thereby improving the production efficiency of cutting the flexible material with longer length by fixed length, improving the dimensional accuracy of fixed length and reducing the waste of the material.
The foregoing summary is merely an overview of the present application, and may be implemented according to the text and the accompanying drawings in order to make it clear to a person skilled in the art that the present application may be implemented, and in order to make the above-mentioned objects and other objects, features and advantages of the present application more easily understood, the following description will be given with reference to the specific embodiments and the accompanying drawings of the present application.
Drawings
The drawings are only for purposes of illustrating the principles, implementations, applications, features, and effects of the present application and are not to be construed as limiting the application.
In the drawings of the specification:
FIG. 1 is a schematic illustration of a fixed length slitting mill for flexible materials according to one embodiment of the application;
FIG. 2 is a schematic diagram II of a fixed length slitting mill for flexible materials according to one embodiment of the application;
FIG. 3 is a schematic view of a fixed length roll cutting apparatus for flexible materials according to one embodiment of the present application;
FIG. 4 is a schematic cross-sectional view of a fixed length roll cutting apparatus for flexible materials according to one embodiment of the present application;
FIG. 5 is a schematic view of a cutter roll according to one embodiment of the present application;
FIG. 6 is an enlarged partial schematic view of FIG. 5A;
Figure 7 is a schematic front view of a cutter roll according to one embodiment of the present application;
FIG. 8 is a schematic view of the construction of an anvil roll according to one embodiment of the present application;
FIG. 9 is a schematic front view of an anvil roll according to one embodiment of the present application;
FIG. 10 is an expanded view of a second substrate according to one embodiment of the application.
Reference numerals referred to in the above drawings are explained as follows:
1. The traction mechanism comprises a traction mechanism body and a traction mechanism body,
2. A material guiding wheel is arranged on the upper surface of the material guiding wheel,
3. The mould frame is arranged on the mould frame,
4. Cutter roll, 41, first roll body, 411, first base, 412, blade, 413, first groove, 414, knife block, 415, shim, 416, first fastener, 419, balance weight, 420, screw, 42, first mandrel,
5. Anvil roll 51, second roll body 511, second base body 512, knife anvil 514, first suction hole 515, second suction hole 52, second core shaft,
6. The transmission mechanism is arranged on the upper part of the frame,
7. The pressurizing mechanism is used for pressurizing the liquid crystal,
8. And a gas distribution plate.
Detailed Description
In order to describe the possible application scenarios, technical principles, practical embodiments, and the like of the present application in detail, the following description is made with reference to the specific embodiments and the accompanying drawings. The embodiments described herein are only for more clearly illustrating the technical aspects of the present application, and thus are only exemplary and not intended to limit the scope of the present application.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment, nor are they particularly limited to independence or relevance from other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment may be combined in any manner to form a corresponding implementable technical solution.
Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application pertains; the use of related terms herein is for the purpose of describing particular embodiments only and is not intended to limit the application.
In the description of the present application, the term "and/or" is a representation for describing a logical relationship between objects, which means that three relationships may exist, for example, X and/or Y, representing: x, Y, and both X and Y are present. In addition, the character "/" herein generally indicates that the front-to-back associated object is an "or" logical relationship.
In the present application, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, order, or sequence of such entities or operations.
Without further limitation, the use of the terms "comprising," "including," "having," or other like terms in this specification is intended to cover a non-exclusive inclusion, such that a process, method, or article of manufacture that comprises a list of elements does not include additional elements but may include other elements not expressly listed or inherent to such process, method, or article of manufacture.
As in the understanding of "review guidelines," the expressions "greater than", "less than", "exceeding" and the like are understood to exclude this number in the present application; the expressions "above", "below", "within" and the like are understood to include this number. Furthermore, in the description of embodiments of the present application, the meaning of "a plurality of" is two or more (including two), and similarly, the expression "a plurality of" is also to be understood as such, for example, "a plurality of" and the like, unless specifically defined otherwise.
In the description of embodiments of the present application, spatially relative terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," etc., are used herein as a basis for the description of the embodiments or as a basis for the description of the embodiments, and are not intended to indicate or imply that the devices or components referred to must have a particular position, a particular orientation, or be configured or operated in a particular orientation and therefore should not be construed as limiting the embodiments of the present application.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," "affixed," "disposed," and the like as used in the description of embodiments of the application should be construed broadly. For example, the "connection" may be a fixed connection, a detachable connection, or an integral arrangement; the device can be mechanically connected, electrically connected and communicated; it can be directly connected or indirectly connected through an intermediate medium; which may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains according to circumstances.
The existing flexible material fixed-length chasing and cutting mechanism needs to be started quickly for chasing speed, shearing and loosening the cutter to return quickly, is influenced by the actions, the production line speed is limited, the production efficiency cannot be further improved, the fixed-length dimension precision is not high, and meanwhile, the round trip is longer, more idle work is done, and the material is easy to waste.
The fixed-length rolling cutting device for the flexible material can be applied to various fixed-length cutting of various flexible materials.
Referring to fig. 1 to 10, according to some embodiments of the present application, the present embodiment relates to a fixed-length rolling cutting device for flexible materials, which includes a traction mechanism 1, a guiding wheel 2, a die frame 3, a cutter roller 4, an anvil roller 5, a driving mechanism (not shown in the drawings), and a gas distribution disc, wherein the guiding wheel 2 is located at the rear of the traction mechanism 1, and the die frame 3 is located at the rear of the guiding wheel 2;
The traction mechanism 1 comprises a traction mechanism driving unit, the traction mechanism driving unit provides power for the traction mechanism 1, the traction mechanism 1 is used for conveying flexible materials to the rear end equipment at a preset speed, and specifically, the traction mechanism 1 is used for conveying the flexible materials between the cutter roller 4 and the anvil roller 5 at the preset speed;
the die carrier 3 is used for supporting the cutter roller 4 and the anvil roller 5 to realize high-speed and high-precision relative rotation rolling cutting;
the cutter roller 4 is arranged on the die carrier 3, the cutter roller 4 comprises a first roller body 41 and a first mandrel 42, the first roller body 41 is sleeved on the first mandrel 42, the first roller body 41 comprises a first base 411 and a blade 412, the first base 411 is provided with a first groove 413 along the axial direction of the first roller body 41, the blade 412 is arranged in the first groove 413 along the axial direction of the first roller body 41, and the tip of the blade 412 protrudes out of the outer circle of the first base 411;
As shown in fig. 5 and 6, the diameter of the outer circle of the tip of the blade 412 in this embodiment is larger than the diameter of the outer circle of the first substrate 411, and the diameters are within 1mm, i.e. the tip of the blade 412 protrudes within 1mm from the outer circle of the first substrate 411. In this embodiment, the first roller body 41 and the first mandrel 42 of the cutter roller 4 may be integrally formed, or may be in a split structure, where the first roller body 41 is sleeved on the first mandrel 42, and the first mandrel 42 supports the first roller body 41 for high-speed rotation and rolling cutting.
The anvil roll 5 is arranged on the die carrier 3, the anvil roll 5 is positioned on one side of the cutter roll 4, the traction mechanism 1 and the material guiding wheel 2 are used for conveying flexible materials between the cutter roll 4 and the anvil roll 5 at a preset speed, the anvil roll 5 comprises a second roll body 51 and a second mandrel 52, the second roll body 51 is sleeved on the second mandrel 52, the second roll body 51 comprises a second base body 511 and a cutter anvil 512, more than two air suction holes are formed in the second base body 511, a second groove is formed in the second base body 511 along the axial direction of the second roll body 51, the cutter anvil 512 is arranged in the second groove along the axial direction of the second roll body 51, and the cutter anvil 512 protrudes out of the outer circle of the second base body 511;
As shown in fig. 7, the diameter of the outer circumference of the anvil 512 in this embodiment is slightly larger than the diameter of the outer circumference of the second base 511. The diameters are within 1mm, i.e. the knife anvil 512 protrudes within 1mmm from the outer circumference of the second substrate 511. In this embodiment, the second roller body 51 and the second mandrel 52 of the anvil roller 5 may be integrally formed, or may be in a split structure, where the second roller body 51 is sleeved on the second mandrel 52, and the second mandrel 52 supports the second roller body 51 for high-speed rotation and rolling cutting.
The length of the blade 412 and anvil 512 extending in the axial direction is determined by the width of the flexible material to be cut.
After the blade 412 disposed on the outer circumference of the cutter roller 4 and the anvil 512 disposed on the outer circumference of the anvil roller 5 rotate relatively for a preset number of turns, the tip of the blade 412 contacts with the surface of the outer circumference of the anvil 512 once in a zero-clearance manner, and the cutting of the flexible material with a certain length is accurately completed, at this time, the center distance between the cutter roller 4 and the anvil roller 5 is equal to the radius of the tip of the blade 412 plus the radius of the outer surface of the anvil 512. Zero contact can be achieved between the tip of the blade 412 and the anvil 512, and when the tip of the blade 412 contacts the anvil 512, zero clearance can be achieved to sever the flexible material.
Ensuring that the tip of the blade 412 does not contact the outer circumferential surface of the second substrate 511 during rotation, and the anvil 512 does not contact the outer circumferential surface of the first substrate 411; the thickness of the anvil 512 is determined by the rotation (number of turns) of the cutter roller 4 and the anvil roller 5, and the cutter point of the cutter roller 4 and the outer circular surface of the anvil 512 of the anvil roller 5 can only contact once (preferably 5-10 mm). When in use, the cutter roller 4 and the anvil roller 5 rotate in opposite directions, because the blade 412 of the cutter roller 4 and the anvil 512 of the anvil roller 5 are higher than the positions of the first substrate 411 and the second substrate 511, the cutting action is generated when the tip of the blade 412 is in zero contact with the outer circular surface of the anvil 512 only when the blade 412 rotates to the position opposite to the anvil 512, and the rest of the cutting action is not contacted.
The driving mechanism is used for driving the cutter roller 4 and the anvil roller 5 to rotate, so that the linear speed of the cutter roller 4 and the anvil roller 5 in a fixed proportion is kept to rotate relatively, and after the cutter blade 412 arranged on the outer circle of the cutter roller 4 and the cutter anvil 512 arranged on the outer circle of the anvil roller 5 rotate relatively for a preset number of turns, the cutter tip of the cutter blade 412 is in zero-clearance contact with the surface of the outer circle of the cutter anvil 512 once, so that the cutting of the flexible material is completed.
In this embodiment, two driving mechanisms may be provided to drive the cutter roller 4 and the anvil roller 5 to rotate at a fixed ratio of linear velocity, or one driving mechanism may be provided to drive the cutter roller 4 and the anvil roller 5 to rotate at a fixed ratio of linear velocity.
The air distribution disc 8 is arranged on the end surface of the anvil roll, and the air distribution disc 8 is used for providing negative pressure or positive pressure for the air suction holes of the anvil roll 5 so that the anvil roll 5 adsorbs or releases the flexible material. As shown in fig. 5, in this embodiment, two air distribution discs 8 may be provided, and the two air distribution discs 8 are respectively provided on the end surfaces of the two ends of the anvil roll 5, and in other embodiments, the air distribution discs 8 may be provided at other positions, so long as negative pressure or positive pressure can be provided to the air suction holes; or a distribution plate 8, which is disposed on an end surface of either end of the anvil roll 5, the distribution plate 8 being configured to distribute gas delivered to the anvil roll 5 from an external gas source, so that the flexible material is stably adsorbed on an outer surface of the anvil roll 5 when entering the anvil roll 5, and rotates in synchronization with the anvil roll 5; when the flexible material is cut, the flexible material is released, causing the flexible material to disengage from the outer surface of the anvil roll 5 and enter subsequent processing. When the anvil roll 5 adsorbs the flexible material, the air distribution disc 8 provides negative pressure for the air suction holes of the anvil roll 5 to suck the flexible material, and when the anvil roll 5 releases the flexible material, the air distribution disc 8 provides normal pressure or positive pressure for the air suction holes of the anvil roll 5 according to actual conditions to separate the flexible material from the outer surface of the anvil roll 5.
In the embodiment, the flexible material enters an anvil roll 5 with adsorption holes through a traction mechanism 1 and a guide wheel 2, and the suction holes on the anvil roll 5 are communicated with an external negative pressure device and are used for adsorbing and conveying the flexible material; the traction mechanism 1 and the material guiding wheel 2 provide initial speed for the flexible material, the flexible material enters between the cutter roller 4 and the anvil roller 5 according to the designed initial speed V 0, and the rotation linear speed of the anvil roller 5 is the same as the flexible material conveying speed. The driving mechanism can independently drive the cutter roller 4 and the anvil roller 5 to rotate, or can drive the cutter roller 4 and the anvil roller 5 to rotate through gears or synchronous pulleys, as long as the cutter roller 4 and the anvil roller 5 are relatively rotated according to the linear speed of a fixed proportion, if the cutter roller 4 and the anvil roller 5 are in transmission connection through gears or synchronous pulleys, the proportion of the cutter roller 4 and the anvil roller 5 is equal to the transmission ratio:
d Cutter roller /d Anvil roll ＝Z1/Z2(Z1 and Z 2 have no common factor
The cutter point of the blade 412 arranged on the outer circle of the cutter roller 4 and the cutter anvil 512 arranged on the outer circle of the anvil roller 5 are overlapped once after rotating for a certain number of turns relatively, so as to complete quick cutting-off, and the diameter of the cutter roller 4 is smaller to realize quick and accurate cutting-off of the long-length battery diaphragm material. The fixed-length rolling cutting device has a compact structure, and can realize continuous high-speed accurate fixed-length cutting.
According to some embodiments of the present application, optionally, as shown in fig. 6, the fixed-length rolling cutting device further includes a driving mechanism and a transmission mechanism 6, where the driving mechanism is used to drive the cutter roller 4 to rotate, the cutter roller 4 is in transmission connection with the anvil roller 5 through the transmission mechanism 6, so that the cutter roller 4 and the anvil roller 5 keep a fixed proportion of linear speed to rotate relatively, the transmission ratio of the transmission mechanism 6 is equal to the diameter of the first roller 41 of the cutter roller 4 to the diameter of the second roller 51 of the anvil roller 5, and after the cutter 412 disposed on the outer circle of the cutter roller 4 and the cutter anvil 512 disposed on the outer circle of the anvil roller 5 rotate relatively for a preset number of turns, the cutter tip contacts with the surface of the outer circle of the cutter anvil once in a zero gap, so as to accurately complete cutting of a length of flexible material. In this way, the cutter roller 4 and the anvil roller 5 can be driven to rotate in opposite directions simultaneously by the cooperation of a driving mechanism and a transmission mechanism 6, the transmission ratio of the transmission mechanism 6 is equal to the diameter ratio of the cutter roller body to the anvil roller 5, the ratio of d Cutter roller of the cutter roller 4 to d Anvil roll of the anvil roller 5 is equal to the transmission ratio, as shown in fig. 3, and d Cutter roller is shown in fig. 3D Anvil roll is/>, FIG. 3The transmission mechanism 6 is used for transmitting power, and the cutter roller 4 and the anvil roller 5 can share one driving mechanism, so that one driving mechanism can be reduced.
According to some embodiments of the present application, optionally, the first roller 41 further includes a pressing blade block 414, a blade pad 415, and a first fastener 416, where the pressing blade block 414, the blade 412, and the blade pad 415 are sequentially disposed from outside to inside, and the pressing blade block 414, the blade 412, and the blade pad 415 are fixed in the first groove 413 by the first fastener 416. Thus, the blade 412 can be conveniently replaced by dismounting the pressing blade block 414, and the diameter of the excircle of the tip of the blade 412 (the height of the tip of the blade 412 protruding out of the excircle of the substrate) can be conveniently adjusted by replacing the blade pad 415. The first fastener 416 is a fastening screw.
As shown in fig. 5, one end of the first base 411 is provided with a first groove 413, the other end of the first base 411 is also provided with a first groove 413, the cutter pressing block 414, the cutter blade 412 and the cutter pad 415 are arranged in the first groove 413 at the upper part, the balance block 419 is arranged in the first groove 413 at the lower part, and the balance block 419 is fixed in the first groove 413 through the screw 420, so that the weight of the two ends of the first base 411 is balanced.
According to some embodiments of the present application, as shown in fig. 8 and 9, optionally, the second substrate 511 is provided with more than two first suction holes 514 arranged along the axial direction of the second roller body 51, and the first suction holes 514 are communicated with each other. In this way, the flexible material on the second substrate 511 is easily adsorbed by the first suction holes 514 penetrating each other.
According to some embodiments of the present application, optionally, the second substrate 511 is provided with more than two second suction holes 515 arranged along the circumferential direction of the second roller body 51, and two adjacent first suction holes 514 are in communication with one second suction hole 515. Thus, the two or more second suction holes 515 arranged circumferentially can communicate all the suction holes together and share one negative pressure device.
According to some embodiments of the application, the knife anvil 512 is optionally secured in the second recess by screws, rivets, welding, bonding. Thus, the screws and the riveting are in a detachable connection mode, the welding and the bonding are in an undetachable connection mode, and the detachable connection mode is generally adopted.
According to some embodiments of the present application, optionally, as shown in fig. 3, the fixed-length hobbing device further comprises a pressurizing mechanism 7, the pressurizing mechanism 7 is disposed on the die frame 3, the pressurizing mechanism 7 is used for driving the cutter roller 4 to approach or separate from the anvil roller 5, the material guiding wheel 2 is disposed on one side of the anvil roller 5, and the traction mechanism 1 is disposed on one side of the material guiding wheel 2. In this way, the pressurizing mechanism 7 is used to apply working pressure to the cutter roller 4, and may apply pressure by using an air cylinder or by using a screw.
In other embodiments, the fixed-length slitting mill further comprises two driving units, wherein the two driving units respectively drive the cutter roller 4 and the anvil roller 5 to rotate, so that the linear speed of the cutter roller 4 and the anvil roller 5 keeps a fixed proportion to each other. In this way, a transmission mechanism is not required, and the rotational speeds and rotational directions of the cutter roller 4 and the anvil roller 5 can be independently controlled.
According to some embodiments of the present application, optionally, as shown in fig. 1, the cross-sectional shape of the tip of the blade 412 is V-shaped, and the top of the anvil 512 is provided with a smooth contact surface. The width of the smooth contact surface at the top of the anvil 512 is 5-10mm, which facilitates the contact and cutting of the blade 412 with the anvil 512 in a range.
According to some embodiments of the application, optionally, the fixed length slitting device is applied to slitting positive and negative separator materials of new energy batteries. Therefore, the positive and negative electrode diaphragm materials of the battery can be sheared to a fixed length conveniently, the rolling cutting of the positive and negative electrode diaphragm materials of the new energy battery is not limited in the embodiment, and the method can be widely applied to flexible material direct cutting products with larger lengths.
In this embodiment, the flexible material enters the anvil roller 5 with adsorption holes through the traction mechanism 1 and the guide wheel 2, the anvil roller 5 is used for adsorbing and conveying the flexible material, the flexible material enters between the cutter roller 4 and the anvil roller 5 according to a preset speed, the rotation linear speed of the anvil roller 5 is the same as the material conveying speed, the cutter roller 4 and the anvil roller 5 relatively rotate according to a fixed proportion linear speed, and the cutting of the flexible material with a certain length is accurately completed by enabling the cutter blade 412 arranged on the outer circle of the cutter roller 4 to be in zero clearance contact with the outer circle surface of the cutter anvil 512 once after the cutter blade 412 and the cutter anvil 512 arranged on the outer circle of the anvil roller 5 relatively rotate for a preset circle; because the cutter point of the cutter roller 4 and the outer circular surface of the cutter anvil 512 of the anvil roller 5 are higher than the positions of the substrate, the cutter point of the cutter roller 412 can be contacted with the outer circular surface of the cutter anvil 512 to generate cutting action only when the cutter roller 412 rotates to the position opposite to the cutter anvil 512, and the rest time can not be contacted; the diameter of the roller bodies of the cutter roller 4 and the anvil roller 5 which are smaller can be used for realizing the rapid and accurate cutting of the flexible material with a longer length, so that the production efficiency of cutting the flexible material with a longer length by a fixed length is improved, the dimensional accuracy of the fixed length is improved, and the waste of the material is reduced.
It should be noted that, although the foregoing embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concepts of the present invention, alterations and modifications to the embodiments described herein, or equivalent structures or equivalent flow transformations made by the present description and drawings, apply the above technical solution, directly or indirectly, to other relevant technical fields, all of which are included in the scope of the invention.

Claims (10)

1. A fixed length roll cutting apparatus for flexible materials, comprising:
the traction mechanism is used for conveying the flexible material to the back-end equipment at a preset speed;
The guide wheel is positioned behind the traction mechanism;
the die carrier is positioned behind the material guide wheel;
The cutter roller is arranged on the die frame and comprises a first roller body and a first mandrel, the first roller body is sleeved on the first mandrel, the first roller body comprises a first base body and a blade, the first base body is provided with a first groove along the axial direction of the first roller body, the blade is arranged in the first groove along the axial direction of the first roller body, and the tip of the blade protrudes out of the outer circle of the first base body;
The anvil roll is arranged on the die frame, the anvil roll is positioned on one side of the cutter roll, the traction mechanism and the guide wheel are used for conveying flexible materials between the cutter roll and the anvil roll at a preset speed, the anvil roll comprises a second roll body and a second mandrel, the second roll body is sleeved on the second mandrel, the second roll body comprises a second base body and a cutter anvil, more than two air suction holes are formed in the second base body, a second groove is formed in the second base body along the axial direction of the second roll body, the cutter anvil is arranged in the second groove along the axial direction of the second roll body, and the cutter anvil protrudes out of the outer circle of the second base body;
The cutter is characterized in that a cutter blade arranged on the outer circle of the cutter roll and a cutter anvil arranged on the outer circle of the anvil roll are in zero-clearance contact with the surface of the outer circle of the cutter anvil once after relatively rotating for a preset number of turns, so that the cutting of the flexible material with a certain length is accurately completed; and
And the air distribution plate is used for providing negative pressure or positive pressure for the air suction holes of the anvil roll so that the anvil roll adsorbs or releases the flexible material.
2. The fixed length rolling cutting device for flexible materials according to claim 1, further comprising a driving mechanism and a transmission mechanism, wherein the driving mechanism is used for driving the cutter roller to rotate, the cutter roller is in transmission connection with the anvil roller through the transmission mechanism, so that the cutter roller and the anvil roller keep a linear speed in a fixed proportion to rotate relatively, the transmission ratio of the transmission mechanism is equal to that of the transmission mechanism, the diameter of the first roller body of the cutter roller is larger than that of the second roller body of the anvil roller, and the cutter roller is used for realizing zero-clearance contact between a cutter point and the surface of the cutter anvil excircle after the cutter excircle and the cutter anvil excircle are relatively rotated for a preset number of turns, so that the cutting of the flexible materials with a certain length is accurately completed.
3. The fixed length slitting mill for flexible materials according to claim 2, wherein the first roller further comprises a knife block, a knife pad, and a first fastener, the knife block, the knife blade, and the knife pad being disposed in sequence from the outside to the inside, the knife block, the knife blade, and the knife pad being secured within the first groove by the first fastener.
4. The fixed length slitting mill for flexible materials according to claim 1, wherein the second substrate is provided with two or more first suction holes arranged in an axial direction of the second roller body, the first suction holes being communicated with each other.
5. The fixed length slitting mill for flexible materials according to claim 4, wherein the second substrate is provided with more than two second suction holes arranged in a circumferential direction of the second roller body, and two adjacent first suction holes are communicated with one second suction hole.
6. A fixed length slitting mill for flexible materials according to claim 1, wherein the anvil is secured in the second recess by screws, rivets, welding, bonding.
7. The fixed length slitting mill for flexible materials according to claim 1, further comprising two drive units that respectively drive the cutter roll and the anvil roll to rotate so that the cutter roll and the anvil roll are relatively rotated at a linear speed maintaining a fixed ratio.
8.A fixed length slitting mill for flexible materials according to claim 1, wherein the cross-sectional shape of the nose of the blade is V-shaped and the top of the anvil is provided with a smooth contact surface.
9. A fixed length slitting apparatus for flexible materials according to any one of claims 1 to 8, further comprising a pressing mechanism provided on the die carrier for driving the cutter roller toward or away from the anvil roller and for applying a working pressure, the guide wheel being provided on one side of the anvil roller, the traction mechanism being provided on one side of the guide wheel.
10. The fixed length slitting mill for flexible materials according to claim 1, wherein the fixed length slitting mill is applied to slitting of positive and negative separator materials of a new energy battery.
CN202410529174.0A 2024-04-29 2024-04-29 Fixed-length rolling cutting device for flexible material Pending CN118205026A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410529174.0A CN118205026A (en) 2024-04-29 2024-04-29 Fixed-length rolling cutting device for flexible material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410529174.0A CN118205026A (en) 2024-04-29 2024-04-29 Fixed-length rolling cutting device for flexible material

Publications (1)

Publication Number Publication Date
CN118205026A true CN118205026A (en) 2024-06-18

Family

ID=91454646

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202410529174.0A Pending CN118205026A (en) 2024-04-29 2024-04-29 Fixed-length rolling cutting device for flexible material

Country Status (1)

Country Link
CN (1) CN118205026A (en)

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