Cutter roller mechanism and device

Abstract

The invention belongs to the technical field of lithium battery cell material strap manufacturing, and particularly relates to a cutter roller mechanism and device.The cutter roller mechanism comprises a driving mechanism, a roller, a mandrel, a cutter, a housing and a base, the driving mechanism is in transmission connection with the mandrel, the cutter and the housing are connected with the mandrel through the base, and the driving mechanism is connected with the roller. The mandrel is sleeved with a roller, and the roller is used for conveying a material belt. The driving mechanism drives the mandrel to rotate, the mandrel is in linkage with the cutter to rotate, so that the cutter and the housing move relatively, the cutter extends out of the housing or is hidden in the housing, and then a material belt is cut off through the cutter. The device is compact in structure and small in occupied space, has the functions of material belt roller passing and cutting at the same time, can meet the requirements of uncoiling, feeding and automatic cutting in different directions, can ensure the safety of operators by stretching out or retracting the cutter to be hidden in the housing, and is convenient to replace and maintain.

Description

Technical Field

[0001] The invention belongs to the technical field of lithium battery core material strip manufacturing, and specifically relates to a cutting roller mechanism and device. Background Art

[0002] The production process of lithium batteries involves the conveying process of the material strip, which is welded by ultrasonic welding for lithium battery packaging in the subsequent process. The material strip needs to be wound in a rotating manner through different winding core tubes. When one winding is completed, the material strip foil needs to be transferred to another winding core tube to continue winding until the winding is completed.

[0003] In the actual application process, the inventors found that the cutting device of the material strip in the prior art has certain limitations, and there are at least the following technical problems:

[0004] On the one hand, the foil cutting device usually adopts the cutting by the ejection roller and the rotary roller knife. The ejection roller cutting is to place the blade in the rotary roller and drive the ejection blade to cut. This mechanism has an ejection surface and an ejection mechanism, and the blade is hidden in the rotary roller, which makes maintenance more troublesome. The overall replacement of the ejection roller has the problems of heavy weight, difficult installation and alignment, and high risk of manual installation. On the other hand, the rotary roller knife cutting only has the cutting function or requires the cooperation of two rollers to complete. The mechanism is bloated and lacks a cutter protection mechanism, which can easily cause the cutter to accidentally injure the operator or cause safety hazards.

[0005] Based on this, it is necessary to improve the defects in the prior art to overcome the shortcomings in practical applications. Summary of the invention

[0006] Based on the above-mentioned shortcomings and deficiencies in the prior art, one of the objects of the present invention is to at least solve one or more of the above-mentioned problems in the prior art. In other words, one of the objects of the present invention is to provide a cutting roller mechanism and device that meets one or more of the above-mentioned needs.

[0007] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0008] The present invention provides a cutter roller mechanism, comprising a driving mechanism, a roller, a core shaft, a cutter, a cover shell and a base, wherein the driving mechanism is connected to the core shaft in a transmission manner, the cutter and the cover shell are respectively connected to the core shaft through the base, the core shaft is sleeved with a roller, and the roller is used to transmit a material belt; the core shaft is driven to rotate by the driving mechanism, and the core shaft is linked to the cutter to rotate, so that the cutter and the cover shell move relative to each other, so that the cutter can extend out of the cover shell or be hidden in the cover shell, and then the material belt is cut by the cutter.

[0009] As a preferred solution, the output end of the driving mechanism is connected to a swing arm, and the swing arm is fixedly connected to a bearing seat.

[0010] As a preferred solution, the base includes a cutter seat, a cover shell seat and a curved surface seat, the cutter seat is connected to the cutter, the cover shell seat is connected to the cover shell, and the curved surface seat is connected to the bearing seat.

[0011] As a preferred solution, two elastic components are provided between the cover shell seat and the curved surface seat, each of the elastic components comprises a spring and a push rod, the spring is sleeved on the push rod, the push rod passes through the cover shell seat and abuts against the curved surface seat.

[0012] As a preferred solution, the curved seat has a gradually curved surface, and one end of the elastic component is in abutment with the gradually curved surface.

[0013] As a preferred solution, the cutter seat is provided with a stopper, and the stopper is in contact and cooperation with the elastic component.

[0014] As a preferred solution, a stop block is connected to the curved seat, and a protrusion is provided on the cover shell seat, and the protrusion contacts and cooperates with the stop block to limit the rotation range of the cover shell seat.

[0015] As a preferred solution, the cutter seat is fixedly connected to the mandrel via a pin, the housing seat and the mandrel rotate relative to each other, and the mandrel and the roller rotate relative to each other.

[0016] As a preferred solution, a limit sensor is provided on the curved seat, and a sensor sheet is provided on the cover seat, and the sensor sheet is electrically connected to the limit sensor.

[0017] The present invention also provides a cutter roller device, comprising a frame and a cutter roller mechanism as described in any of the above schemes, wherein the cutter roller mechanism is installed on the frame, and the material belt is transmitted through the roller. The driving mechanism drives the core shaft to rotate in the forward direction so that the cutter extends out of the cover shell and cuts the material belt. The driving mechanism drives the core shaft to rotate in the reverse direction so that the cutter is hidden inside the cover shell.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a cutting roller mechanism, which has a compact structure and occupies little space, and has the functions of material passing through the roller and cutting. The cutting knife adopts two symmetrical cutting knives, and the cutting effects in different directions are achieved by controlling the forward and reverse rotation of the driving mechanism, thereby meeting the demand for automatic cutting by unwinding and feeding materials in different directions.

[0020] The present invention provides a cutter roller mechanism, which can ensure the safety of operators by extending or retracting the cutter and hiding it in a cover shell. When the cutter is to be maintained, the cutter can be replaced and maintained by simply rotating it out of the cover shell, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0022] Figure 1 1 is a schematic diagram of the overall structure of a cutting roller mechanism according to an embodiment of the present invention;

[0023] Figure 2 It is a partial structural schematic diagram of a cutting roller mechanism according to an embodiment of the present invention;

[0024] Figure 3 is a cross-sectional schematic diagram of a cutter roller mechanism according to an embodiment of the present invention;

[0025] Figure 4 is a partial enlarged view of an embodiment of the present invention;

[0026] Figure 5 yes Figure 2 Schematic diagram of another state perspective;

[0027] In the figure: 1 driving mechanism, 21 swing arm, 22 bearing seat, 31 roller, 32 spindle, 4 cutter, 5 cover shell, 61 cutter seat, 611 pin, 612 block, 62 cover shell seat, 621 raised portion, 63 curved seat, 631 stop block, 632 pin, 633 gradual curved surface, 7 elastic component, 81 limit sensor, 82 sensor sheet. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0030] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0031] In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and cannot be understood as limiting the scope of protection of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article. In addition, it is required to understand this application not only by the actual terms used, but also by the meaning implied by each term.

[0032] According to some embodiments of the present application, Figures 1 to 5 As shown, a cutter roller mechanism is provided, including a driving mechanism 1, a roller 31, a core shaft 32, a cutter 4, a cover shell 5 and a base. The driving mechanism 1 is connected to the core shaft 31 in a transmission manner, and the cutter 4 and the cover shell 5 are respectively connected to the core shaft 32 through the base. The roller 31 is sleeved on the core shaft 32, and the roller 31 is used to transmit the material strip; the core shaft 32 is driven to rotate by the driving mechanism 1, and the core shaft 32 is linked to the cutter 4 to rotate, so that the cutter 4 and the cover shell 5 move relative to each other, so that the cutter 4 can extend out of the cover shell 5 or be hidden in the cover shell 5, and then the material strip is cut by the cutter 4.

[0033] Specifically, the output end of the driving mechanism 1 is connected to the swing arm 21, and the swing arm 21 is fixedly connected to the bearing seat 22. The driving mechanism 1 includes a motor, a reducer, a synchronous shaft and a synchronous belt. The synchronous shaft is fixed on the swing arm and is connected to the core shaft in a transmission manner. The synchronous shaft is arranged in parallel with the output end of the reducer, and a synchronous belt is connected between the two. The motor drives the reducer to rotate, and the reducer is linked to the synchronous belt to rotate, so as to link the synchronous shaft to rotate, thereby driving the core shaft to rotate.

[0034] In some embodiments of the present application, the base includes a cutter seat 61, a cover seat 62 and a curved seat 63, the cutter seat 61 is connected to the cutter 4, the cover seat 62 is connected to the cover 5, and the curved seat 63 is connected to the bearing seat 22.

[0035] Specifically, the mandrel 32 is connected to the roller 31 through a bearing to ensure that the two can rotate relative to each other. The cutter seat 61 is fixedly connected to the mandrel 32 through a pin 611 to ensure that the mandrel 32 and the cutter seat 61 rotate synchronously. The housing seat 62 is connected to the mandrel 32 through a bearing to ensure that the two can rotate relative to each other.

[0036] Furthermore, the cutter 4 is located between the roller 31 and the cover 5, and a certain gap is maintained between the cutter 4 and the roller 31 and the cover 5. The cover 5 is located outside the cutter 4, and there is a gap between the two to ensure that the cutter 4 can extend out of the cover 5 when the two rotate relative to each other, and the cover 5 can completely contain the cutter 4 to avoid the cutter being exposed.

[0037] Furthermore, the cutter 4 includes two symmetrically arranged blades, which are detachably connected to the cutter seat. By controlling the forward and reverse rotation of the driving mechanism, cutting effects in different directions can be achieved, meeting the needs of automatic cutting by unwinding and feeding materials in different directions.

[0038] In some embodiments of the present application, two elastic components 7 are provided between the cover shell seat 62 and the curved surface seat 63 , and each elastic component 7 includes a spring and a push rod. The spring is sleeved on the push rod, and the push rod passes through the cover shell seat 62 and contacts the curved surface seat 63 .

[0039] Furthermore, the curved seat 63 has a gradual curved surface 633, and one end of the elastic component 7 is in contact with the gradual curved surface 633. Specifically, the curved block 63 is configured as a thick block area and a thin block area through the gradual curved surface 633. When the elastic component 7 is pressed against the thick block area, the elastic component 7 extends, and when the elastic component 7 is pressed against the thin block area, the elastic component 7 retracts. The thickness difference between the thick block area and the thin block area is the extension distance of the elastic component 7. The transition curved surface between the thick block area and the thin block area is a gradual curved surface, and the thickness difference between the two is about 10 mm.

[0040] Furthermore, the cutter seat 61 is provided with a stopper 612, which contacts and cooperates with the elastic component 7. The stopper 612 is arranged between two elastic components 7, and when the stopper 612 contacts one of the elastic components 7, the cutter 4 stops rotating, and the rotation angle of the cutter 4 can be limited.

[0041] Furthermore, the curved seat 63 is connected to a stopper 631, and the housing seat 62 has a protrusion 621, which contacts and cooperates with the stopper 631 to limit the rotation range of the housing seat 62. When the housing seat 62 rotates to touch the stopper 631, it cannot continue to rotate, so as to prevent the housing seat 62 from rotating infinitely in the circumferential direction without control.

[0042] In some embodiments of the present application, a limit sensor 81 is provided on the curved seat 63, and a sensing sheet 82 is provided on the cover seat 62, and the sensing sheet 82 is electrically connected to the limit sensor 81. The limit sensor is connected to the control system, and the sensing sheet cooperates with the limit sensor to detect the rotation angle of the cutter, so as to control the position of the cutter when cutting the material strip. It should be noted that there are two limit sensors, and the two limit sensors are installed on the curved seat at 180° symmetry. Correspondingly, there are also two sensing sheets, which are installed on the cover seat 62 at 180° symmetry.

[0043] In the embodiments of the present application, the cutter is extended or retracted to be hidden in the cover, so the safety of the operator can be ensured. When the cutter is to be maintained, the two blades can be removed for replacement and maintenance by simply rotating the cutter out of the cover, which is convenient to operate.

[0044] According to some embodiments of the present application, a cutting roller mechanism is provided, and its working process is as follows:

[0045] When the material strip does not need to be cut under normal conditions, the cutter roller mechanism is configured as a roller, and the material strip can be normally conveyed through the roller. The cutter is controlled by the drive mechanism to rotate to the thick block area of ​​the curved block. At this time, both elastic components are in the pop-up state, and the stopper is between the two elastic components. As long as the cutter rotates in the thick block area, the cover will rotate with the cutter because the two elastic components clamp the stopper. At this time, the cutter is always hidden in the cover to prevent the operator from accidentally touching the cutter.

[0046] When it is necessary to cut the material strip, taking clockwise cutting as an example, the cutter will rotate from the thick block area to the thin block area through the forward rotation of the driving mechanism, and the cover will rotate with the cutter. When the sensing sheet touches the limit sensor, a limit signal will be given, and the control system will determine that the cover has passed the upper limit and the cutter is about to extend out of the cover. The driving mechanism is reversed, and the block will rotate to the thick block area with the elastic component that has not been retracted, and the retracted elastic component will automatically pop out. Under normal working conditions, the rotation of the cover seat 62 will not touch the stop block 631. The process of counterclockwise cutting is the same, which will not be repeated here.

[0047] According to some embodiments of the present application, a cutter roller device is also provided, including a frame (not shown in the figure) and the cutter roller mechanism as described above, the cutter roller mechanism is installed on the frame, and the material strip is transmitted through rollers. The driving mechanism drives the core shaft to rotate in the forward direction so that the cutter extends out of the cover and cuts the material strip. The driving mechanism drives the core shaft to rotate in the reverse direction so that the cutter is hidden inside the cover.

[0048] When it is necessary to cut the material strip, the core shaft is driven to rotate through the driving mechanism so that the cutter extends out of the cover shell and is used to cut the material strip; when it is not necessary to cut the material strip, the cutter is retracted into the cover shell and hidden to avoid the cutter being exposed outside the cover shell and causing accidental injury to the operator.

[0049] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0050] The above description is only a detailed description of the preferred embodiments and principles of the present application. For ordinary technicians in this field, there will be changes in the specific implementation methods based on the ideas provided by the present application, and these changes should also be regarded as the scope of protection of the present application.

Claims

1. A cutting roller mechanism, characterized in that: The invention comprises a driving mechanism, a roller, a core shaft, a cutter, a cover shell and a base, wherein the driving mechanism is connected to the core shaft in a transmission manner, the cutter and the cover shell are respectively connected to the core shaft through the base, the core shaft is sleeved with a roller, and the roller is used to transmit the material strip; the core shaft is driven to rotate by the driving mechanism, and the core shaft is linked to the cutter to rotate, so that the cutter and the cover shell move relative to each other, so that the cutter can extend out of the cover shell or be hidden inside the cover shell, and then the material strip is cut by the cutter.

2. A cutting roller mechanism according to claim 1, characterized in that: The output end of the driving mechanism is connected to a swing arm, and the swing arm is fixedly connected to a bearing seat.

3. A cutting roller mechanism according to claim 2, characterized in that: The base comprises a cutter seat, a cover shell seat and a curved surface seat, wherein the cutter seat is connected to the cutter, the cover shell seat is connected to the cover shell, and the curved surface seat is connected to the bearing seat.

4. A cutting roller mechanism according to claim 3, characterized in that: Two elastic components are arranged between the cover shell seat and the curved surface seat, each of the elastic components comprises a spring and a push rod, the spring is sleeved on the push rod, the push rod passes through the cover shell seat and contacts the curved surface seat.

5. A cutting roller mechanism according to claim 4, characterized in that the curved seat has a gradually changing curved surface, and one end of the elastic component is in abutment with the gradually changing curved surface.

6. A cutting roller mechanism according to claim 4, characterized in that: The cutter seat is provided with a stopper, and the stopper is in contact with and matched with the elastic component.

7. A cutting roller mechanism according to claim 3, characterized in that a stop block is connected to the curved seat, and a protrusion is provided on the cover shell seat, and the protrusion contacts and cooperates with the stop block to limit the rotation range of the cover shell seat.

8. A cutting roller mechanism according to claim 3, characterized in that: The cutter seat is fixedly connected to the core shaft via a pin shaft, the housing seat rotates relatively to the core shaft, and the core shaft rotates relatively to the roller.

9. A cutting roller mechanism according to claim 3, characterized in that: The curved seat is provided with a limit sensor, the cover seat is provided with a sensor sheet, and the sensor sheet is electrically connected to the limit sensor.

10. A cutting roller device, characterized in that: It comprises a frame and a cutter roller mechanism as described in any one of claims 1 to 9, wherein the cutter roller mechanism is installed on the frame, and the material belt is transmitted through the roller. The driving mechanism drives the mandrel to rotate in the forward direction so that the cutter extends out of the cover shell and cuts the material belt. The driving mechanism drives the mandrel to rotate in the reverse direction so that the cutter is hidden inside the cover shell.

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