Roll press equipment operating system and roll press equipment operating method

Abstract

The object of the present invention is to provide an operating system and operating method for a roll press equipment that can guide the appropriate roll replacement timing while taking production efficiency into consideration. [Solution] The roll press equipment operation system of the present invention is a roll press equipment operation system for compressing press material with rolls, and is characterized by comprising a roll replacement timing calculation unit that calculates the timing of roll replacement based on information on the condition of the rolls, such as wear or shape, and information on the production plan. Furthermore, the roll press equipment operation method of the present invention is a roll press equipment operation method for compressing press material with rolls, and is characterized by calculating the timing of roll replacement based on information on the condition of the rolls, such as wear or shape, and information on the production plan.

Description

Technical Field

[0001] The present invention relates to an operation system for roll press equipment and a method for operating roll press equipment.

Background Art

[0002] Roll press equipment is used in the battery electrode manufacturing process for compression processing of electrode materials for lithium-ion secondary batteries, etc. The required thickness accuracy after compression processing of materials is strict, and in recent years, even higher precision has been desired. The rolls used are, for example, replaced regularly with the usage time as a parameter.

[0003] With regular replacement with the usage time as a parameter, there is a risk that the product quality cannot be guaranteed due to the use of worn rolls. In addition, the roll replacement frequency is high, and there is concern about the reduction in production efficiency due to the downtime of roll replacement and adjustment.

[0004] In Patent Document 1, in order to more accurately grasp the shape change of the work roll used in roll press equipment, a technique for grasping the roll deformation amount by dividing it into deformation due to temperature change of the roll and deformation due to load on the roll (paragraphs

[0008] ,

[0009] ) is disclosed.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, Patent Document 1 does not disclose the appropriate replacement timing of the roll and the production efficiency.

[0007] In roll press equipment, changes in the shape of the rolls (due to wear, etc.) can affect product quality, so it is necessary to replace the work rolls in a timely manner. Furthermore, optimizing the replacement timing is important from an economic standpoint.

[0008] Regular replacement based on usage time may compromise product quality due to the use of worn-out rolls. Furthermore, frequent roll replacements raise concerns about reduced production efficiency due to downtime for roll replacement and adjustment.

[0009] The object of the present invention is to provide an operating system and operating method for a roll press equipment that can guide the appropriate roll replacement timing while taking production efficiency into consideration. [Means for solving the problem]

[0010] The roll press equipment operation system of the present invention is a roll press equipment operation system for compressing press material with rolls, and is characterized by comprising a roll replacement timing calculation unit that calculates the timing of roll replacement based on information on the wear or shape of the rolls and information on the production plan.

[0011] Furthermore, the method for operating a roll press equipment according to the present invention is characterized in that, in a method for operating a roll press equipment that compresses press material with rolls, the timing for replacing the rolls is calculated based on information on the wear or shape of the rolls and information on the production plan. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide an operating system and operating method for a roll press equipment that can guide the appropriate roll replacement timing while taking production efficiency into consideration. [Brief explanation of the drawing]

[0013] [Figure 1] This is a block diagram showing the configuration of the operating system for the roll press equipment in this embodiment. [Figure 2] This diagram shows a flowchart illustrating the operation method of the roll press equipment in this embodiment. [Figure 3] This is an example of a cross-sectional view of the rolls of the roll press equipment in this embodiment. [Figure 4] This is a front view of the rolls of the roll press equipment in this embodiment. [Modes for carrying out the invention]

[0014] The embodiments will be described below with reference to the drawings. Note that these embodiments are illustrative examples for explaining the present invention, and have been omitted and simplified as appropriate for clarity of explanation. The invention can also be implemented in various other forms. Unless otherwise specified, each component may be singular or plural. The positions, sizes, shapes, and ranges of the components shown in the drawings may not represent the actual positions, sizes, shapes, and ranges, in order to facilitate understanding of the invention. Therefore, the present invention is not necessarily limited to the positions, sizes, shapes, and ranges disclosed in the drawings. [Examples]

[0015] This embodiment relates to a roll press equipment that compresses press material using rolls, and is particularly applicable to roll press equipment used for compressing materials such as battery electrode materials. The operating system and operating method will be described. In particular, the timing of roll replacement will be described. However, it can also be applied to the operation and roll replacement of roll press equipment used for compressing other materials.

[0016] FIG. 1 is a block diagram showing the configuration of an operation system for a roll press facility according to this embodiment. This operation system mainly receives information on the roll condition 1 such as wear or shape of the roll, and information on the production plan 2 of the press material such as demand prediction of the press material and maintenance plans for other parts, and calculates the roll replacement timing. It includes a roll replacement timing calculation unit 3, a roll replacement guidance unit 4 that guides the appropriate roll replacement timing from the calculation result of the roll replacement timing calculation unit 3, and a guidance cost information calculation unit 5 that calculates the cost for the information guiding the appropriate roll replacement timing of the roll.

[0017] The roll replacement timing calculation unit 3 receives, as the roll condition 1, damage information such as wear of the roll being used. Also, in the operation of the roll press facility, it receives information on the production plan 2 such as demand prediction of the production material by the roll press facility and maintenance plans for parts other than the roll of the roll press facility. Then, it calculates the appropriate roll replacement timing from the information of the roll condition 1 and the production plan 2. That is, it calculates the appropriate time to stop the facility (replace the roll) while considering the production plan 2.

[0018] The production plan 2 includes at least one piece of information from demand prediction, material procurement plan, production schedule creation, equipment maintenance plan, quality control plan, personnel allocation plan, cost management plan, and environmental safety countermeasure plan. Also, the production schedule is created using at least one of the electrode manufacturing process, kneading process, coating process, roll press process, cell assembly process, separator insertion, electrolyte injection, charge-discharge process, inspection and packaging process.

[0019] The information on the roll condition 1 used for grasping the roll condition and predicting the time that affects the product quality can be obtained from at least one of the measurement of the roll surface condition, the measurement of the roll shape, the state of parts around the roll (vibration, sound, pressure on the rotating shaft, etc.), and the condition of the pressed material. By using this information, it is possible to grasp the roll condition and predict the time that affects the product quality.

[0020] For example, damage information such as wear of the roll in use can be obtained from the roll status 1 information, and timing information indicating that the roll is to be replaced within the range from after T1 to after T2 can be obtained. Next, an optimal timing (appropriate timing) within the range from after T1 to after T2 is calculated from production plan 2 such as the demand prediction of the production material by the roll press equipment and the maintenance plan of parts other than the roll of the roll press equipment. In this case, it may be possible to present a plurality of candidate timings such as the optimal timing and the appropriate timing. When presenting a plurality of timings, information such as the production efficiency of each may be attached. However, these specific calculations are not limited to this.

[0021] By using a roll press equipment to press the electrode material of a battery, grasping the state of the pressed material, and confirming its quality, it becomes possible to replace the roll at an appropriate time and maintain the product quality.

[0022] Also, it is possible to calculate the replacement timing that has the least impact on the equipment production efficiency by utilizing structural analysis or / and machine learning.

[0023] The roll replacement guidance unit 4 guides the appropriate roll replacement timing based on the calculation result of the roll replacement timing calculation unit 3. That is, in addition to the information of the roll status 1 which is the wear state of the roll, the appropriate roll replacement timing considering the production plan 2 of the roll press equipment can be presented to equipment operation related persons such as roll replacement implementers, equipment owners, or manufacturing owners. The information in the roll replacement guidance unit 4 is transmitted to the guidance consideration price information calculation unit 5.

[0024] The guidance consideration price information calculation unit 5 receives the information from the roll replacement guidance unit 4 and calculates the consideration price for the information guiding the appropriate timing of the roll. For example, it is also possible to obtain the consideration price based on the consideration price calculation result by previously determining the consideration price between the guidance provider and the equipment operation related person according to the number of guidance presentations (number of guidances).

[0025] Furthermore, the compensation could be set not only based on the number of guidance sessions provided, but also on a subscription basis for the analysis period during which measurement data is acquired and analysis is performed in order to provide the guidance. Since compensation is set based on at least one of the following: the number of guidance sessions provided or the analysis period for the guidance, the compensation can be set to reflect the benefits to those involved in the operation of the equipment.

[0026] Furthermore, this system can also be offered as a subscription service for a set period, specifically for performing role replacement work.

[0027] The method for determining the replacement timing in this embodiment can improve production efficiency compared to conventional methods by considering the efficiency of the entire production system. Furthermore, in a business based on a subscription agreement between equipment operators such as roll replacement implementers, equipment owners, or manufacturing owners, and operation service providers, it is possible to continuously measure and monitor roll and production plan data, and respond to external conditions and changes in the equipment itself, thereby providing a more effective roll replacement service.

[0028] By replacing the rolls at a calculated time within a predetermined period for which the cost of roll replacement work has been set in advance, productivity can be improved, and a mutually beneficial and appropriate exchange of compensation can be made between equipment operators and operational service providers.

[0029] As described above, the roll press equipment operation system of this embodiment is equipped with a roll replacement timing calculation unit 3 that receives information on roll condition 1, such as roll wear, and production plan 2, such as demand forecasts and maintenance plans for other parts, and calculates the timing for replacing the rolls. Therefore, it is possible to calculate an appropriate roll replacement timing while taking production efficiency into consideration.

[0030] Furthermore, by providing a roll replacement guidance unit 4 that provides guidance on the appropriate timing for replacing rolls based on the calculation results of the roll replacement timing calculation unit 3, it is possible to suggest an appropriate roll replacement timing that takes production efficiency into consideration. In addition, since there is a guidance compensation information calculation unit 5 that calculates compensation for information that provides guidance on the appropriate timing for replacing rolls, it is possible to obtain compensation according to the guidance information.

[0031] Such technologies can be used in many industries, including dry electrode manufacturing, to improve the efficiency of roll replacement in roll press equipment. In particular, they can be expected to improve production efficiency and reduce maintenance costs in manufacturing processes that require high-load compression.

[0032] Figure 2 is a flowchart showing the operation method of the roll press equipment in this embodiment.

[0033] In step S1, damage information such as wear on the rolls being used is obtained as Roll Condition 1.

[0034] In step S2, the roll replacement timing is predicted based on the information from production plan 2 and the obtained information from roll status 1. In other words, the appropriate time to stop the equipment (to replace the rolls) is calculated while considering production plan 2, which is the manufacturing plan based on the equipment, and the roll replacement timing is calculated. In this way, the roll replacement timing that takes production plan 2 into account can be determined, and productivity can be improved.

[0035] In step S3, the calculated roll replacement timing is presented to the equipment operators. The operators can then replace the rolls at the appropriate time, thereby improving productivity. It is possible.

[0036] In step S4, a predetermined fee is calculated based on the guidance information, the number of guidance sessions, the time required to provide the guidance, etc., and presented to the equipment operators. The equipment operators who receive the presented fee can then pay it to the guidance provider. Transactions can be conducted based on compensation for increased productivity.

[0037] As described above, in the operation method of the roll press equipment in this embodiment, the timing of roll replacement is calculated from information on roll condition 1, such as roll wear, and information on production plan 2, such as demand forecasts and maintenance plans for other parts, making it possible to calculate an appropriate roll replacement timing while considering production efficiency. Furthermore, since guidance is provided on the appropriate timing of roll replacement based on the result of the roll replacement timing, an appropriate roll replacement timing that takes production efficiency into consideration can be presented. Moreover, since compensation is calculated for the information that provides guidance on the appropriate timing of roll replacement, it is possible to receive compensation according to the guidance information. Furthermore, by considering production plan 2, it is also possible to expect the effect of reducing maintenance costs.

[0038] Next, the roll press equipment to which this embodiment is applied will be described. The roll press equipment is used for manufacturing battery electrodes. The replacement of the rolls in this roll press equipment can be decided by considering the impact on battery production of the manufacturing interruption due to roll replacement, taking into account not only the roll condition 1, which is the wear state of the rolls, but also the production plan 2, which includes demand forecasts and the timing of line stoppages due to other maintenance.

[0039] Figure 3 is an example of a cross-sectional view of the rolls of the roll press equipment in this embodiment. Figure 4 is a front view of the rolls of the roll press equipment in this embodiment. As shown in Figures 3 and 4, the press material 12, which is the electrode material for the battery, is compressed from above and below while the upper roll 10 and lower roll 11 are rotated. As the compression process continues, damage may occur on the roll surface. This damage is very important in the pressing of the electrode material for the battery, and it is important to understand the roll condition, such as roll damage.

[0040] Here, the upper roll shaft 18 is rotatably supported by a first upper roll bearing 14 at one end and a second upper roll bearing 15 at the other end. The lower roll shaft 19 is rotatably supported by a first lower roll bearing 16 at one end and a second lower roll bearing 17 at the other end. Each roll in such a roll press equipment is replaced as needed.

[0041] By applying the roll press equipment operation system and operation method according to this embodiment to such roll press equipment, it becomes possible to suggest the optimal and appropriate roll replacement timing while considering production planning and production efficiency. [Explanation of Symbols]

[0042] 1...Rolling situation, 2…Production plan, 3…Roll replacement timing calculation unit, 4…Roll replacement guidance section, 5… Guidance fee information calculation unit, 10... Upper roll, 11... Lower roll, 12… Pressing materials, 14...First upper roll bearing, 15... Second upper roll bearing, 16...First lower roll bearing, 17...Second lower roll bearing, 18... Upper roll axis, 19... Lower roll axis.

Claims

1. In the operation system of a roll press equipment that compresses press material using rolls, An operation system for a roll press equipment, characterized by comprising a roll replacement timing calculation unit that calculates the timing for replacing the rolls based on information on the wear or shape of the rolls and information on the production plan.

2. In the operation system for the roll press equipment described in claim 1, An operation system for a roll press equipment, characterized by comprising a roll replacement guidance unit that provides guidance on the appropriate replacement time for the rolls based on the calculation results of the roll replacement timing calculation unit.

3. In the operation system for the roll press equipment described in claim 1, A roll replacement guidance unit provides guidance on the appropriate replacement timing for the roll based on the calculation results of the roll replacement timing calculation unit, An operation system for a roll press equipment, characterized by comprising a guidance fee information calculation unit that calculates the fee for the information provided by the roll exchange guidance unit.

4. In the operation system for the roll press equipment described in claim 3, An operating system for a roll press machine, characterized in that the information provided in the guidance is at least one of the number of times the guidance is presented and the duration of the guidance analysis.

5. In the operation system for the roll press equipment described in claim 1, The roll press equipment operation system is characterized in that the information regarding the roll condition is obtained from at least one of the following: the roll surface condition, the roll shape, the condition of the parts around the roll, and the condition of the pressed material.

6. In the operation system for the roll press equipment described in claim 1, The roll replacement timing calculation unit is characterized by using machine learning to analyze the equipment's production efficiency, and is an operational system for a roll press equipment.

7. In the operation system for the roll press equipment described in claim 1, The aforementioned pressed material is an electrode material for a battery, The roll press equipment operation system is characterized in that the information regarding the roll condition is obtained from the condition of the pressed material.

8. In the operation system for the roll press equipment described in claim 1, The roll press equipment operation system is characterized in that the production plan comprises at least one of the following: demand forecasting, material procurement planning, production schedule creation, equipment maintenance planning, quality control planning, personnel allocation planning, cost control planning, and environmental safety measures planning.

9. In the operation method of a roll press equipment that compresses press material using rolls, A method for operating a roll press equipment, characterized by calculating the timing of roll replacement based on information regarding the wear or shape of the roll and information regarding the production plan.

10. In the method of operating a roll press equipment according to claim 9, A method for operating a roll press equipment, characterized by providing guidance on the appropriate replacement time for the roll based on the calculation result obtained from calculating the replacement time for the roll.

11. In the method of operating a roll press equipment according to claim 9, The appropriate replacement time for the roll is guided based on the calculation result obtained from the calculation of the replacement time for the roll. A method for operating a roll press equipment, characterized by calculating compensation for the guidance information provided.

12. In the method of operating a roll press equipment according to claim 9, A method for operating a roll press equipment, characterized in that the rolls are replaced at a calculated roll replacement time within a predetermined period for which the cost of roll replacement work has been set in advance.

13. In the method of operating a roll press equipment according to claim 9, The method for operating a roll press equipment is characterized in that the production plan comprises at least one of the following: demand forecasting, material procurement planning, production schedule creation, equipment maintenance planning, quality control planning, personnel allocation planning, cost control planning, and environmental safety measures planning, and the timing of roll replacement is calculated based on the information on the roll condition and the information on the production plan.

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