Tension control device and cutting machine
By introducing a tension control device with floating rollers and position detectors into the cutting machine, the problem of poor paper tension matching was solved, and stable production of the cutting machine was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏希尔斯电子材料有限公司
- Filing Date
- 2025-08-22
- Publication Date
- 2026-06-19
AI Technical Summary
In existing cutting machines, the tension matching between the unwinding roller and the feed roller of the cutting blade is poor, resulting in excessive or insufficient paper tension, which affects cutting stability and production abnormalities.
A tension control device, including a floating roller, a drive assembly, and a position detector, is used to control the paper tension by adjusting the position of the floating roller after detecting the paper tension limit position, thus avoiding excessive or insufficient tension.
It achieves precise control of paper tension, ensuring the production stability and efficiency of the cutting machine and avoiding production abnormalities caused by excessive or insufficient paper tension.
Smart Images
Figure CN224377246U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cutting equipment technology, and in particular to a tension control device and a cutting machine. Background Technology
[0002] A cutting machine is mainly used to cut resin-impregnated paper into different sizes according to specific requirements. For example, it is generally used for cutting resin boards in the production of resin boards. A cutting machine generally includes a feed roller, a cutting blade, a conveyor belt, and a collection device.
[0003] In related technologies, in the cutting machine used for resin board production, the resin substrate directly enters the cutting knife feed roller. However, the tension matching degree between the paper unwinding roller and the cutting knife feed roller is poor, and the tension of the paper between the two rollers is not easy to control. When the paper tension is too high, it is easy to cause the cutting knife feed servo load to be too high; when the paper tension is too low, it is easy to cause the cutting knife to feed unsmoothly and the cutting data to be unstable.
[0004] It is evident that the cutting machine in this technology is prone to causing production abnormalities. Utility Model Content
[0005] This application provides a tension control device and a cutting machine to solve the technical problem that cutting machines in the related art are prone to causing production abnormalities.
[0006] To address the above problems, this application provides a tension control device, comprising:
[0007] Base frame;
[0008] The drive assembly is mounted on the base frame;
[0009] A floating roller is used for the object to be tensioned to pass around. The floating roller is disposed at the drive end of the drive assembly. The drive assembly is used to drive the floating roller to move in order to adjust the tension of the object to be tensioned.
[0010] The detection component, disposed on the base frame, includes a first position detector and a second position detector. The first position detector is used to detect whether the floating roller exceeds a first position, and the second position detector is used to detect whether the floating roller exceeds a second position. The first position and the second position are two positions on the vertical movement path of the floating roller.
[0011] In some embodiments, both the first position detector and the second position detector are photoelectric sensors.
[0012] In some embodiments, both the first position detector and the second position detector are configured such that the detection light is perpendicular to the axis of the floating roller.
[0013] In some embodiments, both the first position detector and the second position detector are configured such that the detection light is parallel to the axis of the floating roller.
[0014] In some embodiments, connecting plates are provided at both ends of the floating roller, the connecting plates are connected to the driving end of the driving assembly, and the first position detector and the second position detector are located on the side of the connecting plate opposite to the floating roller.
[0015] In some embodiments, the connecting plate is provided with a light-transmitting hole for the detection light of the first position detector and / or the second position detector to pass through.
[0016] In some embodiments, a positioning plate is slidably provided on the connecting plate, and a positioning hole is provided on the positioning plate. The positioning hole extends in the vertical direction and is used to position the horizontal installation position of the first position detector and / or the second position detector.
[0017] In some embodiments, the detection assembly further includes a first linear adjustment mechanism and a second linear adjustment mechanism, wherein the first linear adjustment mechanism is used to adjust the position of the first position detector in the radial direction of the floating roller, and the second linear adjustment mechanism is used to adjust the position of the second position detector in the radial direction of the floating roller.
[0018] In some embodiments, the drive assembly includes a drive cylinder and a pressure reducing valve connected to the drive cylinder.
[0019] This application also provides a cutting machine, the cutting machine comprising:
[0020] Paper feed roller;
[0021] Any of the tension control devices described above;
[0022] An unwind roller is used to mount a paper roll, from which the paper roll passes around the floating roller and enters the feed roller.
[0023] The beneficial effects of the embodiments of this application are as follows: The tension control device provided by this application can obtain the paper tension by setting a first position detector and a second position detector at the two tension limit positions of the first and second positions of the floating roller, so as to control the drive component to drive the floating roller to move, realize paper tension control, avoid the situation of excessive or insufficient paper tension, and ensure the normal operation of production.
[0024] When both the first position detector and the second position detector are set such that the detection light is parallel to the axis of the floating roller, it is equivalent to setting the first position detector and the second position detector at one end of the floating roller in the axial direction of the floating roller, which can avoid the first position detector and the second position detector affecting the winding of the paper on the floating roller.
[0025] When the connecting plate between the floating roller and the drive assembly is provided with a light-transmitting hole for the detection light of the first position detector and / or the second position detector to pass through, the light-transmitting hole can be used to position the first position detector and / or the second position detector in the horizontal direction, ensuring the accuracy of detection. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:
[0027] Figure 1 This is a schematic diagram of the tension control device provided in the first embodiment of the present application applied to a cutting machine;
[0028] Figure 2 This is a schematic diagram of the tension control device provided in one embodiment of this application;
[0029] Figure 3 yes Figure 2 Side view of the tension control device in the embodiment;
[0030] Figure 4 This is a schematic diagram of the tension control device provided in another embodiment of this application;
[0031] Figure 5 yes Figure 4 Side view of the tension control device in the embodiment;
[0032] Figure 6 This is a schematic diagram of the connecting plate in a tension control device provided in an embodiment of this application;
[0033] Figure 7 This is a schematic diagram of a tension control device provided in an embodiment of this application, in which a positioning plate is slidably disposed on a connecting plate;
[0034] Figure 8 This is a schematic diagram of the structure of the slider and the groove in a tension control device provided in an embodiment of this application.
[0035] In the diagram: 100, tension control device; 10, base frame; 20, drive assembly; 21, drive cylinder; 30, floating roller; 40, detection assembly; 41, first position detector; 42, second position detector; 43, first linear adjustment mechanism; 44, second linear adjustment mechanism; 50, connecting plate; 51, light-transmitting hole; 52, positioning plate; 53, positioning hole; 54, slide groove; 55, slider; 56, threaded fastener; 200, feed roller; 300, unwind roller; 400, paper. Detailed Implementation
[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0037] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0039] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0040] Please see Figure 1 This application provides a tension control device 100, which can be applied in a cutting device to adjust the tension of the paper 400 to be cut. In the following embodiments, the tension control device 100 is used in a cutting machine for resin board production and is set between the unwinding roller 300 and the feed roller 200, but it is not limited thereto.
[0041] Please refer to the following: Figures 2 to 5 The tension control device 100 provided in this application includes a base frame 10, a drive assembly 20 and a detection assembly 40 disposed on the base frame 10, and a floating roller 30 connected to the drive end of the drive assembly 20. The floating roller 30 is used for the object to be tensioned to pass around. The drive assembly 20 is used to drive the floating roller 30 to move to adjust the tension of the object to be tensioned. The detection assembly 40 includes a first position detector 41 and a second position detector 42. The first position detector 41 is used to detect whether the floating roller 30 exceeds a first position, and the second position detector 42 is used to detect whether the floating roller 30 exceeds a second position. The first position and the second position are two positions on the vertical movement path of the floating roller 30.
[0042] By setting a first position detector 41 and a second position detector 42 in the tension control device 100, the first position can be set as the position when the paper tension is too high, and the second position as the position when the paper tension is too low. The first position detector 41 is equivalent to detecting whether the floating roller 30 has excessive tension, and the second position detector 42 is equivalent to detecting whether the floating roller 30 has insufficient tension. When the detection component 40 detects that the floating roller 30 has excessive or insufficient tension, it controls the drive component 20 to drive the floating roller 30 to move, thereby controlling the paper tension, avoiding production abnormalities, and ensuring production efficiency. For example, before the cutting machine officially starts working, the detection component 40 can be used to adjust the floating roller 30 to a suitable position so that the cutting machine operates under appropriate paper tension.
[0043] The control drive component 20 drives the floating roller 30. This can be achieved by the detection component 40 detecting excessive or insufficient tension in the floating roller 30 and issuing an alarm, allowing the operator to promptly control the drive component 20. Alternatively, the tension control device 100 may include a controller, connecting the detection component 40 to the controller within the tension control device 100; or the detection component 40 may be connected to the controller of the cutting machine, allowing the controller to receive a signal from the detection component 40 and control the drive component 20.
[0044] Drive assembly 20 is used to drive floating roller 30 to move, such as Figure 1 As shown, the drive assembly 20 adjusts the paper tension by moving the floating roller 30 up and down. However, it should be noted that the direction of movement of the floating roller 30 is not limited to this; it can be determined based on the specific location of the tension control device 100 in the cutting machine and the winding direction of the paper around the floating roller 30. It can be understood that the drive assembly 20 is a linear drive assembly 20. For example, the drive assembly 20 may include a hydraulic cylinder, a pneumatic cylinder, or an electric telescopic rod, but is not limited to these. The driving end of the drive assembly 20 is the end of the drive assembly 20 that performs the telescopic movement.
[0045] The floating roller 30 is used for the object to be tensioned to pass around. For example, the paper 400 in the cutting machine is a resin board, and the resin board is the object to be tensioned. It should be noted that during normal operation of the cutting machine, the floating roller 30 will float up and down between a first position and a second position under the influence of factors such as paper tension and / or its own weight, so as to adaptively make slight adjustments to the tension of the resin board. This application embodiment does not limit the specific method by which the floating roller 30 floats in conjunction with the tension of the paper 400. For example, it can be achieved by setting a counterweight to adjust the weight of the floating roller 30, or by setting a pressure reducing valve in the drive assembly 20. In some embodiments, the drive assembly 20 may include a drive cylinder 21 and a pressure reducing valve connected to the drive cylinder 21. The pressure reducing valve maintains a constant output pressure of the drive cylinder 21, enabling the floating roller 30 to adapt to changes in external paper tension.
[0046] The first position detector 41 and the second position detector 42 in the detection component 40 are used to detect the position of the floating roller 30. It is understood that the first position detector 41 and the second position detector 42 can be position sensors, for example, selected from proximity sensors, photoelectric sensors, displacement sensors, and image recognition sensors, but are not limited to these. In some embodiments, both the first position detector 41 and the second position detector are photoelectric sensors. It should be noted that the first position detector 41 detects whether the floating roller 30 exceeds a first position; that is, when the floating roller 30 reaches the first position, it blocks the light emitted by the first position detector 41, and the first position detector 41 responds. The second position detector 42 detects whether the floating roller 30 exceeds a second position; that is, when the floating roller 30 reaches the second position, it blocks the light emitted by the second position detector 42, and the second position detector 42 responds. It is understood that when the floating roller 30 floats to a point where its circumferential surface is tangent to the detection light emitted by the first position detector 41 or the second position detector 42, the photoelectric sensor at the corresponding position is triggered.
[0047] The first position detector 41 and the second position detector 42 are both disposed on the base frame 10. Regarding their relative positions to the floating roller 30, in some embodiments, both the first position detector 41 and the second position detector 42 are configured such that their detection rays are perpendicular to the axis of the floating roller 30. Figure 2 and Figure 3 As shown, the first position detector 41 and the second position detector 42 are distributed on both sides of the floating roller 30, respectively detecting the highest and lowest points of the floating roller 30. This design places high demands on the vertical installation accuracy of the first position detector 41 and the second position detector 42, while horizontal installation position deviations have a relatively small impact on detection accuracy. To ensure that the paper can be wound around the floating roller 30, it can be understood that the length of the floating roller 30 is slightly greater than the width of the paper, leaving sections at both ends of the floating roller 30 that can be detected by the first position detector 41 and the second position detector 42.
[0048] Of course, to avoid the first position detector 41 and the second position detector 42 affecting the paper winding operation on the floating roller 30, and to avoid the paper shifting axially on the floating roller 30 and affecting the detection accuracy of the detection component 40, in some embodiments, both the first position detector 41 and the second position detector 42 are configured such that the detection light is parallel to the axis of the floating roller 30. For example... Figure 4 and Figure 5 As shown, the first position detector 41 and the second position detector 42 are distributed at both ends of the floating roller 30. It can be understood that the first position detector 41 and the second position detector 42 can detect a point at any height on the circumference of the floating roller 30.
[0049] like Figures 2 to 5 As shown, in some embodiments, connecting plates 50 are provided at both ends of the floating roller 30. The connecting plates 50 are connected to the driving end of the driving assembly 20. The first position detector 41 and the second position detector 42 are located on the side of the connecting plate 50 facing away from the floating roller 30. Taking the driving assembly 20 including a driving cylinder 21 as an example, the two ends of the floating roller 30 are respectively connected to the driving cylinder 21, and the connecting plate 50 is connected to the driving cylinder 21. The two ends of the floating roller 30 are connected to the driving cylinder 21 through the connecting plate 50. When paper is passed around the floating roller 30, the connecting plate 50 can also limit the paper in the axial direction of the floating roller 30.
[0050] Please refer to the following: Figure 6 In some embodiments, the connecting plate 50 is provided with a light-transmitting hole 51, which allows the detection light from the first position detector 41 and / or the second position detector 42 to pass through. Since the first position detector 41 and the second position detector 42 are located on the side of the connecting plate 50 facing away from the floating roller 30, it can be understood that when the points on the circumference of the floating roller 30 detected by the first position detector 41 and / or the second position detector 42 are blocked by the connecting plate 50, the corresponding position detector can detect the floating roller 30 by providing the light-transmitting hole 51 at the corresponding position on the connecting plate 50. Of course, by providing the light-transmitting hole 51, it can also be used as a horizontal positioning point for the detection light, facilitating the positioning and installation of the corresponding position detector. Naturally, to accommodate the vertical movement of the floating roller 30, it can be understood that the light-transmitting hole 51 is a hole with a certain size in the vertical direction; for example, the light-transmitting hole 51 can be an oblong hole, but it is not limited to this.
[0051] Please refer to the following: Figure 7 and Figure 8 In some embodiments, a positioning plate 52 is slidably disposed on the connecting plate 50, and the positioning plate 52 is provided with a positioning hole 53 extending vertically for positioning the horizontal installation position of the first position detector 41 and / or the second position detector 42. This application embodiment does not limit the specific slidable arrangement of the positioning plate 52 on the connecting plate 50. For example, the connecting plate 50 may be provided with a groove 54, and the positioning plate 52 may be provided with a slider 55 that cooperates with the groove 54. This application embodiment does not limit the specific extension trajectory of the groove 54. It can be understood that the extension trajectory of the groove 54 on the connecting plate 50 can be set such that when the slider 55 slides along the groove 54, the positioning hole 53 on the positioning plate 52 can correspond to the edge of the floating roller 30, thereby enabling the positioning hole 53 to adjust its position according to the detection point on the floating roller 30. Figure 8As shown, after the slider 55 moves the positioning hole 53 to the position corresponding to the detection point along the slide groove 54, the end of the threaded fastener 56 is rotated to abut against the bottom of the slide groove 54, so that the slider 55 abuts against the upper wall of the slide groove 54, thereby fixing the position of the slider 55 in the slide groove 54.
[0052] Taking the positioning hole 53 for positioning the horizontal installation position of the second position detector 42 as an example, after determining the detection point corresponding to the second position detector 42 in the circumferential direction of the floating roller 30, the positioning plate 52 is slid so that the detection point is located in the positioning hole 53. When installing the second position detector 42, the position of the second position detector 42 is moved in the horizontal direction. When the detection light from the transmitting end of the second position detector 42 is not blocked by the positioning plate 52 around the positioning hole 53 and can be received by the receiving end through the positioning hole 53, the horizontal installation and positioning of the second position detector 42 is completed. Then the vertical position of the second position detector 42 can be adjusted. For example, the horizontal position of the second position detector 42 can be adjusted by using a cylinder or an electric telescopic rod, but it is not limited to this.
[0053] like Figures 2 to 5 As shown, in some embodiments, the detection assembly 40 further includes a first linear adjustment mechanism 43 and a second linear adjustment mechanism 44. The first linear adjustment mechanism 43 is used to adjust the position of the first position detector 41 in the radial direction of the floating roller 30, and the second linear adjustment mechanism 44 is used to adjust the position of the second position detector 42 in the radial direction of the floating roller 30. When the drive assembly 20 drives the detection assembly 40 to move vertically, the first linear adjustment mechanism 43 and the second linear adjustment mechanism 44 adjust the vertical position of the corresponding position detectors to accommodate paper 400 with different tension requirements and floating rollers 30 with different radial dimensions. The first linear adjustment mechanism 43 and the second linear adjustment mechanism 44 can be selected from electric telescopic rods, cylinders, or hydraulic cylinders, but are not limited to these.
[0054] It should be noted that the base frame 10 in the above embodiments of this application is used to support the drive assembly 20 and the detection assembly 40 of the tension control device 100, for example, as Figure 2 As shown, the base frame 10 may include at least one base plate, the drive cylinder 21 is disposed on the base plate and passes through the base plate and is connected to the floating roller 30, and the first position detector 41 and the second position detector 42 are disposed on the side of the base plate opposite to the drive cylinder 21.
[0055] like Figure 1 As shown, in some embodiments, this application also provides a cutting machine. The cutting machine includes a feed roller 200, a tension control device 100 as described in the above embodiments, and an unwind roller 300. The unwind roller 300 is used to mount a paper roll, and the paper from the paper roll passes over the floating roller 30 and enters the feed roller 200 from the unwind roller 300.
[0056] Before starting normal production, the cutting machine provided in the above embodiments of this application can first adjust the tension control device 100. For example, according to the properties of the paper 400 to be cut and the production process requirements, the positions of the first position detector 41 and the second position detector 42 are adjusted by the first linear adjustment mechanism 43 and the second linear adjustment mechanism 44, so that the floating roller 30 reaches maximum tension when it moves to block the first position detector 41 and minimum tension when it moves to block the second position detector 42. Thus, during production, when the first position detector 41 or the second position detector 42 is blocked, the controller controls the drive assembly 20 to move the floating roller 30, avoiding excessive or insufficient tension. Of course, an alarm device can also be set in the tension control device 100 or the cutting machine. When the first position detector 41 and the second position detector 42 continuously output signals, the alarm device issues an alarm message, indicating that there may be an abnormality in the paper 400, such as the paper 400 being stuck or broken.
[0057] The cutting machine provided in this application adopts all the technical solutions of the tension control device 100 in the above embodiments, and therefore has at least all the beneficial effects brought about by the technical solutions of the above embodiments of the tension control device 100, which will not be described in detail here.
[0058] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.
Claims
1. A tension control device, characterized by, include: Base frame; The drive assembly is mounted on the base frame; A floating roller is used for the object to be tensioned to pass around. The floating roller is disposed at the drive end of the drive assembly. The drive assembly is used to drive the floating roller to move in order to adjust the tension of the object to be tensioned. The detection component, disposed on the base frame, includes a first position detector and a second position detector. The first position detector is used to detect whether the floating roller exceeds a first position, and the second position detector is used to detect whether the floating roller exceeds a second position. The first position and the second position are two positions on the vertical movement path of the floating roller.
2. The tension control device of claim 1, wherein, Both the first position detector and the second position detector are photoelectric sensors.
3. The tension control device of claim 2, wherein, Both the first position detector and the second position detector are configured such that the detection light is perpendicular to the axis of the floating roller.
4. The tension control device of claim 2, wherein, Both the first position detector and the second position detector are configured such that the detection light is parallel to the axis of the floating roller.
5. The tension control device of claim 4, wherein, Both ends of the floating roller are provided with connecting plates, which are connected to the driving end of the driving assembly. The first position detector and the second position detector are located on the side of the connecting plate facing away from the floating roller.
6. The tension control device as described in claim 5, characterized in that, The connecting plate is provided with a light-transmitting hole, which is used to allow the detection light from the first position detector and / or the second position detector to pass through.
7. The tension control device as described in claim 6, characterized in that, A positioning plate is slidably provided on the connecting plate, and a positioning hole is provided on the positioning plate. The positioning hole extends in the vertical direction and is used to position the horizontal installation position of the first position detector and / or the second position detector.
8. The tension control device according to any one of claims 1-7, characterized in that, The detection assembly further includes a first linear adjustment mechanism and a second linear adjustment mechanism. The first linear adjustment mechanism is used to adjust the position of the first position detector in the radial direction of the floating roller, and the second linear adjustment mechanism is used to adjust the position of the second position detector in the radial direction of the floating roller.
9. The tension control device as described in claim 1, characterized in that, The drive assembly includes a drive cylinder and a pressure reducing valve connected to the drive cylinder.
10. A cutting machine, characterized in that, The cutting machine includes: Paper feed roller; The tension control device according to any one of claims 1-9; An unwind roller is used to mount a paper roll, from which the paper roll passes around the floating roller and enters the feed roller.