Full-automatic splitting machine for copper-aluminum metal plates
By introducing a distance adjustment mechanism and a sensor system into the copper-aluminum composite sheet slitting machine, precise adjustment of the slitting blade spacing and automatic fault determination are achieved, solving the problems of slitting accuracy and fault determination, and improving production efficiency and equipment intelligence.
Patent Information
- Application Number
- CN202510940817.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2025-09-12
AI Technical Summary
The existing copper-aluminum composite plate slitting machine has deficiencies in slitting precision adjustment and fault judgment, making it difficult to achieve high-precision adjustment and timely fault condition judgment, resulting in low production efficiency.
The distance adjustment mechanism and sensor system are used to achieve precise adjustment of the distance between the slitting knives through the cooperation of the distance adjustment nut, distance adjustment spring and distance adjustment rod. The wear type of the slitting knife is determined by real-time speed and reaction force detection of the clamping device, and automated emergency disposal measures are provided.
It improves the slitting accuracy, reduces downtime, reduces material waste, enhances the automatic control capability of the slitting machine, and improves production efficiency.
Smart Images
Figure CN120619475A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of nonferrous metal processing, in particular to a fully automatic slitting machine for copper and aluminum metal plates. Background Art
[0002] Copper and aluminum are important nonferrous metals. Copper has excellent electrical and thermal conductivity, as well as corrosion resistance, while aluminum has good electrical conductivity and lightweight properties. Copper-aluminum composite sheet and strip combines the advantages of copper and aluminum, offering high conductivity, good corrosion resistance, low density, and easy connection. It can replace pure copper sheet and strip in a wide range of applications, including electronics and communications, petrochemicals, transportation, decorative building materials, aerospace, and defense.
[0003] Copper-aluminum composite plates are made through explosive rolling, continuous casting and other processes, and then rolled into thin plates. According to production requirements, the thin plate coils are longitudinally cut into strips of different widths, which requires the use of a slitting machine.
[0004] Before slitting, the slitting knife needs to be installed first: measure the width of the strip to be slit, select the distance ring according to the width requirement and put it on the rotating shaft, install the slitting knife to the corresponding interval position, and start the slitting machine. In the above-mentioned slitting machine, during the slitting knife distance adjustment process, the precision requirement of the stepless adjustment of the strip width is affected by the width value of the minimum distance ring, and the slitting precision is difficult to further improve; secondly, affected by the installation structure of the slitting knife, the slitting knife relies on the distance ring for clamping and friction clamping, so the slitting knife has two conditions: base wear and blade wear. In the case of severe wear in both cases, normal production cannot be carried out. In the actual production process, the existing technology cannot promptly identify the fault condition, and thus cannot promptly respond to disposal measures. This application aims to solve the technical needs of further improving precision adjustment and determining fault conditions. Summary of the Invention
[0005] In response to the shortcomings of the existing slitting machines mentioned in the background technology during use, the present invention provides a fully automatic slitting machine for copper and aluminum metal plates, which has the advantages of improving slitting accuracy and determining partial fault conditions at the slitting roller, solving the technical problems raised in the background technology.
[0006] The present invention provides the following technical solution: a fully automatic slitting machine for copper and aluminum metal plates, comprising a slitting roller, an outer movably sleeve of the slitting roller is provided with a distance ring and a slitting knife, a slitting knife is fixed between two distance rings by clamping, and after all the slitting knives are installed, a clamping device is provided at both ends of the slitting roller, the clamping device is used to apply force to squeeze the distance ring to form a fixation, a mounting hole is provided on the side of the distance ring, and there are a plurality of mounting holes, and a ring array of the plurality of mounting holes is distributed on the side circumference of the distance ring, a distance adjusting mechanism is provided on the inner movably sleeve of the mounting hole, the distance adjusting mechanism is placed between two adjacent distance rings, and the distance adjusting mechanism is used to adjust the spacing between the two adjacent distance rings and fix the spacing value.
[0007] Preferably, the slitting knife consists of a knife base and a knife head, the knife head is annularly fixed to the outer peripheral edge of the knife base, the knife base is used to be fixed by friction resistance, and the knife head is used to cut non-ferrous metal materials.
[0008] Preferably, the pitch adjusting mechanism includes a pitch adjusting rod, which consists of square columns at both ends and a round screw in the middle. The square columns are adapted to fit the mounting holes, and two pitch adjusting nuts are threadedly connected to the round screw. A pitch adjusting spring is provided between the two pitch adjusting nuts and on the outer movable sleeve of the round screw. The two ends of the pitch adjusting spring are compressed to tighten the pitch adjusting nut.
[0009] Preferably, when the two adjusting nuts squeeze the adjusting spring to a minimum stroke, the side distance between the two adjusting nuts is exactly the minimum width value of the distance ring.
[0010] Preferably, the width values of the distance ring are set to 5 cm, 2 cm, and 1 cm.
[0011] Preferably, a sensor for obtaining the rotational speed of the slitting roller is provided at the end of the slitting roller, the current real-time rotational speed of the slitting roller is obtained, the rated rotational speed of the slitting roller is input, and the speed difference between the real-time rotational speed and the rated rotational speed is calculated. When the speed difference is smaller than the rated value, it is determined that the slitting knife is stuck. When the speed difference is larger than the rated value, it is determined that the slitting knife may be worn.
[0012] Preferably, after the speed difference rate is larger than the rated value, the change rate of the fixed clamping force of the embedded slitting knife is determined, specifically: the real-time reaction force of the clamping device is obtained, and the reaction force parameters of the clamping device during the equipment startup phase are entered as the rated reaction force. Similarly, the rate of change of the real-time reaction force compared to the rated reaction force is used to determine whether the pressure fluctuation is within the rated range. When the change rate is normal, the cutter head is worn; when the change rate is abnormal, the cutter base is worn.
[0013] Preferably, when the blade base is worn, the rated speed of the input slitting roller is increased.
[0014] Preferably, when the cutter head is worn, the distance between the two adjusting nuts is adjusted and the slitting knife is re-fixed.
[0015] The present invention has the following beneficial effects: 1. The present invention provides a distance adjustment mechanism between two distance rings. Through the cooperation of the distance adjustment nut and the distance adjustment spring and the self-locking of the threads of the distance adjustment nut and the distance adjustment rod, the distance between the two distance adjustment nuts can be adjusted, thereby replacing the distance accuracy of the two distance rings with the adjustment accuracy between the two distance adjustment nuts, thereby further improving the final adjustment accuracy between the two slitting knives.
[0016] 2. The present invention obtains the real-time rotation speed and rated rotation speed of the slitting roller, calculates the deviation rate of the rotation speed difference, and can preliminarily determine the wear problem of the card knife and the slitting knife. Through the adjustment function provided by the distance adjustment mechanism, the precision requirement can be lowered to make temporary wear compensation, so that the unwinding and slitting work can continue without stopping for replacement, and only the strip accuracy on one side of the position where the worn slitting knife is located is reduced, ensuring that the width accuracy of the longitudinal strip at other positions remains unchanged, saving rework time, and reducing further waste of plate materials.
[0017] 3. The present invention applies a detectable pressure to the end of the distance ring and provides real-time feedback to obtain the real-time rate of change of the force before and after the force is applied. This rate of change parameter is then incorporated into the deviation rate of the speed difference as a further determination factor. This allows the determination of whether the wear type of the slitting knife is base wear or tip wear. Based on the type of wear, corresponding emergency measures are then taken, enabling the automatic control system of the slitting machine to assist workers in conducting spot checks and handling. For example, if the base of the knife is worn, the problem is solved by adjusting the distance adjustment mechanism; if the tip is worn, the rotation speed of the rotating shaft is temporarily increased to compensate for the wear, thereby successfully completing the current round of slitting. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a cross-sectional view of the local structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the cross-section structure at the middle distance adjustment mechanism; Figure 3 Schematic diagram of the structure of the distance adjustment mechanism of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the slitting roller and positioning strip of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the distance ring and the mounting hole of the present invention; Figure 6 This is a schematic diagram of the slitting knife structure of the present invention; Figure 7 This is a schematic diagram of the sleeve connection between the slitting roller and the slitting knife of the present invention; Figure 8 This is a schematic diagram of the sleeve connection between the slitting roller and the distance ring of the present invention; Figure 9 This is a logic block diagram for determining a fault condition of a slitting knife according to the present invention; Figure 10 This is a logic block diagram for determining a fault condition after feedback intervention of the clamping device of the present invention.
[0019] In the figure: 1. Slitting roller; 2. Distance ring; 3. Slitting knife; 31. Knife base; 32. Knife head; 4. Positioning strip; 5. Mounting hole; 6. Distance adjustment mechanism; 61. Distance adjustment rod; 62. Distance adjustment nut; 63. Distance adjustment spring; 7. Clamping device. DETAILED DESCRIPTION
[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] See also Figures 1-8The present invention relates to a fully automatic slitting machine for copper and aluminum metal sheets, wherein the present invention mainly improves the slitting roller part of the slitting machine, including a slitting roller 1, wherein both ends of the slitting roller 1 are mounted on the frame seat through supporting bearings, the outer surface of the slitting roller 1 is movably sleeved with a distance ring 2 and a slitting knife 3, and a slitting knife 3 is fixed between the two distance rings 2 by clamping, and a positioning bar 4 is provided on the outer periphery of the slitting roller 1. In the present invention, it is preferred that three groups of positioning bars 4 are arranged in an annular array on the outer periphery of the slitting roller 1, and the slitting roller 1 is fixedly connected to the positioning bar 4, generally integrally formed or welded, and the distance ring 2 is movably sleeved on the outer periphery of the slitting roller 1 through the positioning bar 4. Restricted by the positioning bar 4, the distance ring 2 can only slide along the axial direction of the outer periphery of the slitting roller 1, and the inner ring of the slitting knife 3 is just the same as the outer periphery diameter of the three groups of positioning bars 4 annular array, that is, the inner ring of the slitting knife 3 is just sleeved on the outer periphery of the three groups of positioning bars 4, so that the slitting knife 3 can slide along the axial direction of the slitting roller 1. , it can also rotate along the circumference of the slitting roller 1, and a mounting hole 5 is opened on the side of the distance ring 2. The mounting hole 5 is a through groove, which connects the two side surfaces of the distance ring 2. There are several mounting holes 5, and the several mounting holes 5 are distributed in a ring array on the side circumference of the distance ring 2. The inner diameter of the several mounting holes 5 is larger than the inner ring diameter of the slitting knife 3, that is, the rotation path of the mounting holes 5 is on the outer peripheral side of the rotation path of the positioning bar 4, and a distance adjusting mechanism 6 is movably sleeved inside the mounting hole 5. The distance adjusting mechanism 6 is placed between two adjacent distance rings 2, that is, the distance adjusting mechanism 6 is located between the two corresponding mounting holes 5 on the two adjacent distance rings 2. One end of the distance adjusting mechanism 6 is sleeved in the mounting hole 5 opened on the side of one distance ring 2, and the other end of the distance adjusting mechanism 6 is sleeved in the mounting hole 5 opened on the side of the other adjacent distance ring 2. The distance adjusting mechanism 6 is used to adjust the distance between the two adjacent distance rings 2 and fix the distance value.
[0022] The slitting knife 3 is composed of a knife base 31 and a knife head 32. The knife head 32 is annularly fixed to the outer peripheral edge of the knife base 31. The knife base 31 is used to be fixed by friction resistance, and the knife head 32 is used to cut non-ferrous metal materials.
[0023] Specifically, the pitch adjustment mechanism 6 includes a pitch adjustment rod 61, which consists of square columns at both ends and a round screw in the middle. The square columns are adapted to fit into the mounting holes 5. Two pitch adjustment nuts 62 are threadedly connected to the round screw. The two threads are symmetrically arranged, allowing the two pitch adjustment nuts 62 to move toward or away from each other. The threads of the pitch adjustment nuts 62 and the round screw are self-locking, that is, the thread depth angle is less than the thread friction angle, preventing the pitch adjustment nuts 62 from loosening after being tightened. A pitch adjustment spring 63 is provided between the two pitch adjustment nuts 62 and on the outer sleeve of the round screw. The ends of the pitch adjustment spring 63 are compressed to tighten the pitch adjustment nuts 62. Therefore, by moving the two pitch adjustment nuts 62 toward or away from each other, the side surfaces of the pitch adjustment nuts 62 abut the side surfaces of the corresponding distance rings 2, thereby adjusting the distance between the two adjacent distance rings 2.
[0024] Specifically, to ensure precise setting, when the two adjusting nuts 62 squeeze the adjusting spring 63 to their minimum stroke, the lateral spacing between the two adjusting nuts 62 is exactly the minimum width of the distance ring 2, and the sum of the adjustable widths of the two adjusting nuts 62 also exactly equals the minimum width of the distance ring 2. In other words, the combined width of the two adjusting nuts 62 after squeezing the adjusting spring 63 is equivalent to a distance ring 2 with a minimum width, and the range of adjustable spacing is also infinitely adjustable within the minimum width of the distance ring 2.
[0025] For the setting of the adjustment accuracy, it is appropriate to set the width value of the distance ring 2 to 5 cm, 2 cm, and 1 cm. During actual installation, the thickness value of the slitting knife 3 is taken into account.
[0026] After all the slitting knives 3 are installed, a clamping device 7 is provided at both ends of the slitting roller 1. The clamping device 7 is used to apply force to the distance ring 2 to fix it. The clamping device 7 can be tightened by a screw, a block, or hydraulic pressure. In the embodiment of the present application, the hydraulic pressure is preferred.
[0027] See Figure 9 A sensor for obtaining the rotational speed of the slitting roller 1 is provided at the end of the slitting roller 1, and the rated rotational speed of the slitting roller 1 is input by the numerical control system, and the current real-time rotational speed of the slitting roller 1 is obtained in real time, and the rotational speed difference is calculated to obtain the speed difference rate of the rotational speed difference compared with the rated rotational speed. When the speed difference rate is smaller than the rated value, it is determined that the slitting knife 3 is stuck. When the speed difference rate is larger than the rated value, it is determined that the slitting knife 3 may be worn.
[0028] Regarding the rated speed, that is, for copper and aluminum plates within the rated thickness range, when the slitting knives 3 at the rated number slit the copper and aluminum plates at the same time, the speed output by the CNC system to the slitting roller 1 is the normal speed of the slitting roller 1 when the slitting knives 3 at the rated number cut the copper and aluminum plates at the same time. The rated speed is the parameter input by the staff to the equipment control before the equipment starts working, and the specific value of the parameter is obtained by experiment and then entered into the table. The speed difference is the real-time speed of the slitting roller 1 minus the input rated speed of the slitting roller 1. The speed difference is divided by the rated speed, which is the speed difference rate of the real-time speed compared to the rated speed. If it is expressed as η, it is: η = (R 实 -R 额 ) / R 额 ; R 实 Indicates the real-time speed of slitting roller 1, R 额 It represents the input rated speed of the slitting roller 1, and η represents the speed difference between the real-time speed and the rated speed.
[0029] Regarding the analysis of the judgment result, when the slitting knife 3 is not completely in contact with the copper and aluminum plates, the slitting knife 3 rotates freely, and the rated speed is the speed during slitting, so the real-time speed R 实 Higher than rated speed R 额 , during normal cutting, R 实 With R 额 Close, that is, the speed difference η is close to zero. When η is small, it means that R 实 If it is too small, the knife will be stuck. 实 Too large, that is, the slitting knife 3 is R 实 It is still too large, which means that part of the slitting knives 3 is not fully affected by the cutting resistance, that is, some of the slitting knives 3 may be worn and fail to contact the copper and aluminum plates synchronously with other slitting knives 3.
[0030] From the perspective of numerical control, if η is too small, the knife is retracted and then fed, that is, the slitting roller 1 is pushed back and then fed; if η is too large, it is necessary to stop the machine to check the real-time status of each slitting knife 3, and replace it or perform other processing if necessary.
[0031] See Figure 10 After comparing the above speed difference η, the change rate of the fixed clamping force of the embedded slitting knife 3 is determined as follows: After the speed difference comparison structure is too large, the slitting knife 3 is inserted to determine the rate of change of the fixed clamping force. Before this, a sensor capable of obtaining the reaction force parameters of the clamping device 7 in real time is set on the clamping device 7 to obtain the real-time reaction force F of the clamping device 7. 实 , and enter the reaction force parameters of the clamping device 7 during the equipment startup phase as the rated reaction force F 额 Similarly, the rate of change θ of the real-time reaction force compared to the rated reaction force is used to determine whether the pressure fluctuation is within the rated range. When the rate of change is normal, combined with the large leading speed differential rate η, it indicates that the cutter head 32 is worn; when the rate of change is abnormal, combined with the large leading speed differential rate η, it indicates that the cutter base 31 is worn.
[0032] θ = (F 实 -F 额 ) / F 额 ; Correspondingly, the emergency response measures are: when the knife base 31 is worn, try to increase the input rated speed so that the slitting can proceed normally. If the cutting is still not ideal after the increase, it is necessary to stop the machine to check and replace the corresponding slitting knife 3; when the knife head 32 is worn, try to adjust the distance between the two adjusting nuts 62, re-fix the slitting knife 3, and appropriately reduce the distance accuracy between two adjacent distance rings 2 to ensure the distance accuracy of other positions is normal, so that the slitting work can proceed normally.
[0033] Regarding the analysis of the judgment results, when the speed difference η is too large, it means that the real-time rotation resistance of the slitting roller 1 is small, and the slitting knife 3 may not contact the copper-aluminum plate or is worn and slipping. Since the clamping device 7 applies a vertical extrusion clamping force to the slitting knife 3 through the fixed distance ring 2, when the size of the knife base 31 remains unchanged, the rated reaction force of the clamping device 7 remains unchanged. By introducing the rated reaction force parameter of the clamping device 7, the wear change factor of the knife base 31 can be eliminated, and then it can be determined that the wear of the cutter head 32 causes the speed difference to change.
[0034] As for the reference range of the reaction force change rate, it is affected by the accuracy of the reaction force inspection element and the impact vibration during cutting. The reaction force change range is recorded through the impact floating range of the slitting knife 3 under normal slitting, and the reference range is defined based on this range for comparison. At the same time, considering normal use before the wear limit is reached, the reference range is enlarged by 1.2 to 1.5 times.
[0035] Through the above-mentioned joint detection and judgment, the partial wear fault of the slitting roller 1 and the common fault of the card knife can be basically determined, and the fault point can be determined in time. Combined with the adjustment function of the distance adjustment mechanism 6, temporary emergency measures can be taken according to actual production needs, thereby improving the intelligent response capability of the equipment when a fault occurs during the actual production process.
Claims
1. A fully automatic slitting machine for copper and aluminum metal plates, comprising a slitting roller (1), wherein a distance ring (2) and a slitting knife (3) are movably sleeved on the outside of the slitting roller (1), a slitting knife (3) is fixed between two distance rings (2) by clamping, and after all the slitting knives (3) are installed, a clamping device (7) is provided at both ends of the slitting roller (1), and the clamping device (7) is used to apply force to the distance ring (2) to form a fixed position, and is characterized in that: The side of the distance ring (2) is provided with a mounting hole (5), and a plurality of mounting holes (5) are provided. The plurality of mounting holes (5) are distributed in a circular array on the circumference of the side of the distance ring (2). A distance adjustment mechanism (6) is movably sleeved inside the mounting hole (5). The distance adjustment mechanism (6) is placed between two adjacent distance rings (2). The distance adjustment mechanism (6) is used to adjust the distance between the two adjacent distance rings (2) and fix the distance value.
2. The fully automatic slitting machine for copper and aluminum metal plates according to claim 1, characterized in that: The slitting knife (3) is composed of a knife base (31) and a knife head (32), wherein the knife head (32) is annularly fixed to the outer peripheral edge of the knife base (31), the knife base (31) is used to be fixed by friction resistance, and the knife head (32) is used to cut non-ferrous metal materials.
3. The fully automatic slitting machine for copper and aluminum metal plates according to claim 2, characterized in that: The pitch adjustment mechanism (6) includes a pitch adjustment rod (61), which is composed of square columns at both ends and a round screw in the middle. The square columns are adapted to be matched with the mounting holes (5). Two pitch adjustment nuts (62) are threadedly connected to the round screw. A pitch adjustment spring (63) is provided between the two pitch adjustment nuts (62) and on the outer movable sleeve of the round screw. The two ends of the pitch adjustment spring (63) are compressed to tighten the pitch adjustment nuts (62).
4. The fully automatic slitting machine for copper and aluminum metal plates according to claim 3, characterized in that: When the two adjusting nuts (62) squeeze the adjusting spring (63) to a minimum stroke, the side distance between the two adjusting nuts (62) is exactly the minimum width value of the distance ring (2).
5. The fully automatic slitting machine for copper and aluminum metal plates according to claim 4, characterized in that: The width values of the distance ring (2) are set to 5 cm, 2 cm, and 1 cm.
6. The fully automatic slitting machine for copper and aluminum metal plates according to claim 3, characterized in that: A sensor for obtaining the rotation speed of the slitting roller (1) is provided at the end of the slitting roller (1). The current real-time rotation speed of the slitting roller (1) is obtained, the rated rotation speed of the slitting roller (1) is input, and the speed difference between the real-time rotation speed and the rated rotation speed is calculated. If the speed difference is smaller than the rated value, it is determined that the slitting knife (3) is stuck. If the speed difference is larger than the rated value, it is determined that the slitting knife (3) is likely to be worn.
7. The fully automatic slitting machine for copper and aluminum metal plates according to claim 6, characterized in that: After the speed difference rate is larger than the rated value, the change rate of the fixed clamping force of the embedded slitting knife (3) is determined, specifically: the real-time reaction force of the clamping device (7) is obtained, and the reaction force parameter of the clamping device (7) during the equipment startup phase is recorded as the rated reaction force. Similarly, the change rate of the real-time reaction force compared with the rated reaction force is used to determine whether the pressure fluctuation is within the rated range. When the change rate is normal, the cutter head (32) is worn; when the change rate is abnormal, the cutter base (31) is worn.
8. The fully automatic slitting machine for copper and aluminum metal plates according to claim 7, characterized in that: When the knife base (31) is worn, the rated speed of the input slitting roller (1) is increased.
9. The fully automatic slitting machine for copper and aluminum metal plates according to claim 7, characterized in that: When the cutter head (32) is worn, the distance between the two spacing nuts (62) is adjusted and the slitting knife (3) is re-fixed.