Slitter with oscillating press roll

Abstract

The utility model discloses a kind of slitting machine with swingable press roller, it is characterized by, including girder and press roller module, the guide rail extending along its axial direction is provided on the girder, press roller module includes first connecting arm, first press roller arm, first air cylinder, second connecting arm, second press roller arm, second air cylinder, press roller, first locking device and second locking device.The utility model can realize press roller three-dimensional position accurate adjustment and pressure dynamic balance.Two sides pressure degree of independent control of double-drive unit, eliminate the pressure deviation caused by material thickness unevenness.Sliding connecting arm cooperates with locking device, both ensure wide-range position adjustment, and ensure working state stability.The structure effectively solves the problem of traditional equipment pressure uneven, the problem of insufficient adjustment accuracy, improves slitting machine winding quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of slitting machine technology, and in particular to a slitting machine with a swingable pressure roller. Background Technology

[0002] In a slitting machine, the winding pressure roller arm is one of the key components affecting winding quality. Its core function is to apply appropriate pressure to the roll material, expelling air from the material and thus ensuring the stability of the winding process and the reliability of the winding quality. To achieve this function, guide rails are usually installed on the main beam of the slitting machine, and the winding pressure roller arm is mounted on these guide rails. Position adjustment is achieved by sliding on the guide rails, ensuring that the pressure roller can be accurately aligned with the work position and apply uniform pressure to the film.

[0003] While existing winding pressure roller arm designs meet basic production needs to a certain extent, they still have some limitations in practical applications. For example, the winding pressure roller arm may be affected by factors such as guide rail accuracy, material properties, and operating environment during adjustment, leading to uneven pressure application or inaccurate position adjustment. These problems may affect winding quality and even result in material waste and reduced equipment efficiency.

[0004] Furthermore, existing winding pressure roller arm designs may require frequent adjustments when handling materials of varying thicknesses and flexibility, increasing operational complexity and maintenance costs. Simultaneously, the stability and durability of the winding pressure roller arm during high-speed winding are also key factors requiring further optimization.

[0005] Therefore, in order to improve the winding quality and production efficiency of slitting machines, developing a winding pressure roller arm structure that can more precisely adjust the pressure roller position, apply pressure more evenly, and has higher stability and adaptability is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the defects in the prior art and provide a slitting machine with a swingable pressure roller.

[0007] The present invention solves the above-mentioned technical problems through the following technical solution:

[0008] A slitting machine with a swingable pressure roller includes a main beam and a pressure roller module. The main beam is provided with a guide rail extending along its axial direction. The pressure roller module includes:

[0009] The first connecting arm is movably mounted on the guide rail;

[0010] The first pressure roller arm includes a first force-receiving part and a first support part that are perpendicularly connected to each other. The connection between the first force-receiving part and the first support part is a first pivot part, and the first pivot part is rotatably connected to the first connecting arm.

[0011] The first cylinder, the first force-bearing part is located on the movement path of the piston rod of the first cylinder;

[0012] The second connecting arm is movably mounted on the guide rail;

[0013] The second pressure roller arm includes a second force-receiving part and a second support part that are perpendicularly connected to each other. The connection between the second force-receiving part and the second support part is a second pivot part, and the second pivot part is rotatably connected to the second connecting arm.

[0014] The second cylinder, the second force-receiving part is located on the movement path of the piston rod of the second cylinder;

[0015] The pressure roller is rotatably connected at one end to the first support portion and rotatably connected at the other end to the second support portion;

[0016] A first locking device is configured to secure the first connecting arm to the guide rail;

[0017] The second locking device is configured to secure the second connecting arm to the guide rail.

[0018] Preferably, the first connecting arm is provided with a first mounting groove, the first connecting arm is provided with a first through hole penetrating the first mounting groove, the first pivot part is provided with a first pivot hole, and a first rotating shaft passes through the first through hole and the first pivot hole.

[0019] And / or, the second connecting arm is provided with a second mounting groove, the second connecting arm is provided with a second through hole penetrating the second mounting groove, the second pivot part is provided with a second pivot hole, and a second rotating shaft is inserted into the second through hole and the second pivot hole.

[0020] Preferably, the first pressure roller arm is provided with a first receiving groove, the opening of the first receiving groove faces away from the first force-bearing part, and one end of the pressure roller is detachably installed in the first receiving groove;

[0021] And / or, the second pressure roller arm is provided with a second receiving groove, the opening of the second receiving groove facing away from the second force-bearing part, and one end of the pressure roller is detachably installed in the second receiving groove.

[0022] Preferably, a rotatable first locking member is installed at the opening of the first receiving groove. The first locking member is connected to the first pressure roller arm via a rotating shaft. The first locking member is configured to cover the opening of the first receiving groove and lock it to the first pressure roller arm.

[0023] And / or, a rotatable second locking member is installed at the opening of the second receiving groove, the second locking member being connected to the second pressure roller arm via a rotating shaft, the second locking member being configured to cover the opening of the second receiving groove and lock with the second pressure roller arm.

[0024] Preferably, the guide rail is a straight, square-shaped protrusion integrally formed with the main beam, and the pressure roller module further includes:

[0025] The first slider is mounted on the first connecting arm and slidably connected to the guide rail;

[0026] The second slider is mounted on the second connecting arm and slidably connected to the guide rail.

[0027] Preferably, there are two guide rails arranged in parallel. There are also two first sliders and two second sliders. The two first sliders are installed at intervals on the first connecting arm and are slidably connected to the two guide rails respectively. The two second sliders are installed at intervals on the second connecting arm and are slidably connected to the two guide rails respectively.

[0028] Preferably, the first locking device is a bolt; and / or, the second locking device is a bolt.

[0029] Preferably, the pressure roller module includes:

[0030] The first mounting component is connected to the first force-bearing part;

[0031] The first steel ball is rotatably mounted on the end of the first mounting member near the first cylinder, and the first steel ball is positioned directly opposite the piston rod of the first cylinder;

[0032] The second mounting component is connected to the second force-bearing part;

[0033] The second steel ball is rotatably mounted on one end of the second mounting member near the second cylinder, and the second steel ball is positioned directly opposite the piston rod of the second cylinder.

[0034] Preferably, the slitting machine further includes two parallel main beams, each of which is provided with two pressure roller modules.

[0035] Preferably, the slitting machine includes a first electro-proportional valve electrically connected to the first cylinder and a second electro-proportional valve electrically connected to the second cylinder;

[0036] The first electro-proportional valve adjusts the extension length of the piston rod of the first cylinder in real time.

[0037] The second electro-proportional valve adjusts the extension length of the piston rod of the second cylinder in real time.

[0038] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0039] The significant advantages of this invention are: it enables precise three-dimensional position adjustment and dynamic pressure balance of the pressure roller. Dual drive units independently control the pressure applied to both sides, eliminating pressure deviations caused by uneven material thickness. The sliding connecting arm, in conjunction with the locking device, ensures both a wide range of position adjustment and operational stability. This structure effectively solves the problems of uneven pressure application and insufficient adjustment precision in traditional equipment, improving the winding quality and production efficiency of the slitting machine. Attached Figure Description

[0040] Figure 1 This is a structural diagram of the pressure roller module and crossbeam of a preferred embodiment of the present invention.

[0041] Figure 2 This is a structural diagram of the first connecting arm in a preferred embodiment of the present invention.

[0042] Figure 3 This is a structural diagram of the first support arm in a preferred embodiment of the present invention.

[0043] Figure 4 This is a structural diagram of the second connecting arm in a preferred embodiment of the present invention.

[0044] Figure 5 This is a structural diagram of the second support arm in a preferred embodiment of the present invention.

[0045] Figure 6 This is a structural diagram of a slitting machine according to a preferred embodiment of the present invention.

[0046] Explanation of reference numerals in the attached figures:

[0047] Main beam 1

[0048] Guide rail 2

[0049] First connecting arm 3

[0050] First mounting slot 31

[0051] First through hole 32

[0052] First pressure roller arm 4

[0053] First stress-bearing part 41

[0054] First support section 42

[0055] First pivot hole 43

[0056] First receiving slot 44

[0057] Cylinder 5

[0058] Second connecting arm 6

[0059] Second mounting slot 61

[0060] Second through hole 62

[0061] Second pressure roller arm 7

[0062] Second stress-bearing part 71

[0063] Second support section 72

[0064] Second pivot hole 73

[0065] Second receiving slot 74

[0066] Second cylinder 8

[0067] Pressure roller 9

[0068] First locking element 10

[0069] Second locking element 11

[0070] First slider 12

[0071] Second slider 13 Detailed Implementation

[0072] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0073] It should be noted that in the claims and specification of this patent, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0074] In existing technologies, the adjustment accuracy and pressure uniformity of the slitting machine's winding pressure roller arm are limited by the traditional single-point fixed structure. Current equipment achieves coarse adjustment of the pressure roller position through guide rail sliding, but cannot dynamically balance the pressure difference between the two sides. When processing materials of different thicknesses or flexibility, a single drive source leads to uneven pressure distribution, especially under high-speed winding conditions, where the pressure roller is prone to skewness, affecting the roll tightness. Furthermore, the rigid connection structure of the traditional pressure roller arm is difficult to adapt to changes in material properties, causing localized stress concentration.

[0075] To address the aforementioned issues, the inventors discovered that the traditional linear drive method for pressure roller arms cannot achieve multi-degree-of-freedom adjustment. By analyzing the roller's oscillation trajectory, they realized that an orthogonal force arm structure can convert cylinder thrust into rotational torque. Based on the principle of dual-point independent control, they proposed setting drive units on both sides of the pressure roller arms, using the pivot joint to form a torque fulcrum. Combined with a movable connecting arm, a dual-degree-of-freedom system for position adjustment and pressure control was established.

[0076] Therefore, as Figures 1-6 As shown, this application proposes a slitting machine structure including a main beam 1 and a pressure roller module. The main beam 1 is provided with an axially extending guide rail 2, and the pressure roller module includes a first connecting arm 3, a pressure roller 9, a first pressure roller arm 4, a first cylinder 5, a second connecting arm 6, a pressure roller 9, a second pressure roller arm 7, a second cylinder 8, a pressure roller 9, a first locking device, and a second locking device.

[0077] The first connecting arm 3 is movably disposed on the guide rail 2; the first pressure roller arm 4 of the pressure roller 9 includes a first force-bearing part 41 and a first support part 42 that are perpendicularly connected to each other, the connection point of the first force-bearing part 41 and the first support part 42 is a first pivot part, and the first pivot part is rotatably connected to the first connecting arm 3; the first force-bearing part 41 is located on the movement path of the piston rod of the first cylinder 5; the second connecting arm 6 is movably disposed on the guide rail 2; the second pressure roller arm 7 of the pressure roller 9 includes a second force-bearing part 71 and a second support part 72 that are perpendicularly connected to each other, the connection point of the second force-bearing part 71 and the second support part 72 is a second pivot part, and the second pivot part is rotatably connected to the second connecting arm 6; the second force-bearing part 71 is located on the movement path of the piston rod of the second cylinder 8; one end of the pressure roller 9 is rotatably connected to the first support part 42, and the other end is rotatably connected to the second support part 72; the first locking device is configured to fix the first connecting arm 3 to the guide rail 2; the second locking device is configured to fix the second connecting arm 6 to the guide rail 2.

[0078] The main beam 1 is the supporting structure that carries the pressure roller module. It can be implemented using I-beams or box beams, and its axial extension characteristics provide a reference for adjusting the position of the pressure roller 9. The guide rail 2 is a guiding structure set along the length of the main beam 1. It can be a T-slot or dovetail groove structure to ensure the connecting arm moves along a predetermined trajectory. The first connecting arm 3 is the moving part that connects the main beam 1 and the pressure roller arm. It can be equipped with a slider that cooperates with the guide rail 2 to form an adjustable mounting base. The mutually perpendicular structure of the first pressure roller arm 4 of the pressure roller 9 means that the force-bearing part and the supporting part are arranged at right angles. It can be made of bent steel plates or welded structures to form a lever-type force transmission mechanism. The first pivot part is the rotation fulcrum of the pressure roller arm. It can be connected by a hinge with a bushing, allowing the pressure roller arm to rotate around the connecting arm. The piston rod movement path of the first cylinder 5 is aligned with the force-bearing part, meaning that the direction of the driving force is perpendicular to the surface of the force-bearing part. The rotational connection between the pressure roller 9 and the supporting part uses a bearing or bushing structure. It can be equipped with a mounting seat with needle roller bearings, allowing the pressure roller 9 to rotate freely. The locking device refers to the position fixing mechanism, which can be a locking bolt with a handle, and the connecting arm is positioned by friction clamping.

[0079] Specifically, when the first cylinder 5 and the second cylinder 8 operate simultaneously, the piston rod pushes the corresponding force-bearing part to generate a linear thrust. Since the force-bearing part and the support part are orthogonally arranged, the thrust is converted into the rotational torque of the pressure roller arm through the pivot part. The synchronous swing of the two pressure roller arms drives the pressure roller 9 to rise and fall as a whole, forming a vertical pressure adjustment. When the connecting arm moves along the guide rail 2, it can change the lateral position of the pressure roller 9, and after locking, it forms a stable support point.

[0080] Compared to existing technologies, traditional single-point drive structures can only achieve unidirectional pressure adjustment, while this solution uses independent control of dual cylinders to form a dynamic balance system. The fixed fulcrum design of existing pressure roller arms limits the adjustment range; this solution combines the pivot joint and the sliding connecting arm to achieve composite adjustment of position and angle. Compared to the traditional integral pressure roller frame, the swing-type structure effectively decomposes lateral stress and avoids the guide rail 2 bearing torsional torque. Compared to a single-sided drive device, simultaneous control from both sides reduces the risk of pressure roller 9 deflection and improves the uniformity of pressure distribution.

[0081] Through the above technical solution, this application achieves precise three-dimensional position adjustment and dynamic pressure balance of the pressure roller 9. Dual drive units independently control the pressure applied to both sides, eliminating pressure deviations caused by uneven material thickness. The combined design of the pivot structure and rotating connection enhances the system's degree of freedom, adapting to different roll material characteristics. The sliding connecting arm, in conjunction with the locking device, ensures both a wide range of position adjustment and operational stability. This structure effectively solves the problems of uneven pressure application and insufficient adjustment precision in traditional equipment, improving the winding quality and production efficiency of the slitting machine.

[0082] This application further proposes a rotating connection structure between the pressure roller arm and the connecting arm of a slitting machine: A first connecting arm 3 is provided with a first mounting groove 31, a first through hole 32 penetrating the first mounting groove 31, and a first pivot hole 43 is opened on the first pivot portion. A first rotating shaft passes through the first through hole 32 and the first pivot hole 43. A second connecting arm 6 is provided with a second mounting groove 61, a second through hole 62 penetrating the second mounting groove 61, and a second pivot hole 73 is opened on the second pivot portion. A second rotating shaft passes through the second through hole 62 and the second pivot hole 73.

[0083] The first mounting groove 31 refers to a recessed area on the first connecting arm 3, used to accommodate the first pivot and restrict its lateral displacement. It can be implemented using a U-shaped or rectangular groove structure, with the groove depth matching the thickness of the pivot. The first through hole 32 is a circular channel penetrating both sides of the mounting groove, its axis coinciding with the axis of the pivot hole. It can be formed by drilling, with the hole diameter slightly larger than the shaft diameter to allow for clearance fit. The first pivot hole 43 is a through hole on the pivot of the pressure roller arm, its axis perpendicular to the force direction of the pressure roller arm. It can be formed by milling, with the hole diameter forming a transition fit with the shaft diameter. The first shaft is a cylindrical metal part passing through the through hole and the pivot hole, specifically made of surface-hardened alloy steel, with both ends fixed by snap rings or nuts to prevent axial movement. The second connecting arm 6 and its mounting groove, through hole, pivot hole, and shaft are symmetrically arranged with the first connecting arm 3, and their implementation and functional principle are the same.

[0084] Specifically, the pivot joint of the pressure roller arm is embedded in the mounting groove of the connecting arm, and the shaft is precisely inserted through the coaxial positioning of the through hole and the pivot hole. The side wall of the mounting groove forms a radial constraint on the pivot joint, preventing lateral displacement during swinging. For the double connecting arm structure, the symmetrical arrangement of the second mounting groove 61 and the shaft forms a force couple balance, effectively dispersing stress concentration on one side.

[0085] Through the above technical solutions, this application achieves precise assembly of the rotating connection structure between the pressure roller arm and the connecting arm, effectively eliminating the fit clearance of the rotating pair and ensuring the stability of the oscillation trajectory of the pressure roller 9. The positioning combination of the mounting groove and the through hole reduces the stringent requirements for machining accuracy, and the standardized design of the rotating shaft simplifies spare parts management. The detachable connection method improves the replacement efficiency of worn parts, and maintenance does not require the complete disassembly of the pressure roller module. The force balance design of the symmetrical structure of the double connecting arms extends the service life of the rotating shaft and reduces the oscillation deviation caused by unilateral wear.

[0086] This application further proposes that the first pressure roller arm 4 of the pressure roller 9 is provided with a first receiving groove 44, the opening of the first receiving groove 44 is facing away from the first force receiving part 41, and one end of the pressure roller 9 is detachably installed in the first receiving groove 44; the second pressure roller arm 7 of the pressure roller 9 is provided with a second receiving groove 74, the opening of the second receiving groove 74 is facing away from the second force receiving part 71, and one end of the pressure roller 9 is detachably installed in the second receiving groove 74.

[0087] The first receiving groove 44 refers to the mechanical limiting structure set on the pressure roller arm, which can be implemented using a U-shaped groove structure. The second receiving groove 74 adopts a symmetrical structure with the first receiving groove 44, so that the two ends of the pressure roller 9 maintain a uniform constraint state. Detachable installation means that the end of the pressure roller 9 and the receiving groove form an interlocking fit through an open structure.

[0088] The above technical solution greatly facilitates maintenance personnel in replacing the pressure roller 9.

[0089] This application further proposes that a rotatable first locking member 10 is installed at the opening of the first receiving groove 44, the first locking member 10 is connected to the first pressure roller arm 4 of the pressure roller 9 via a rotating shaft, and the first locking member 10 is configured to cover the opening of the first receiving groove 44 and lock it with the first pressure roller arm 4 of the pressure roller 9; a rotatable second locking member 11 is installed at the opening of the second receiving groove 74, the second locking member 11 is connected to the second pressure roller arm 7 of the pressure roller 9 via a rotating shaft, and the second locking member 11 is configured to cover the opening of the second receiving groove 74 and lock it with the second pressure roller arm 7 of the pressure roller 9.

[0090] The rotatable locking component refers to a plate-shaped or rod-shaped part that rotates around an axis via a rotating shaft. Specifically, it can be implemented using a metal plate with fixing holes, and its axis of rotation is arranged parallel to the opening direction of the receiving groove. The locked state, covering the receiving groove opening, means that the locking component has rotated to a position coinciding with the plane of the receiving groove opening and is rigidly connected to the pressure roller arm via bolts or clips. The locking mechanism eliminates the risk of the pressure roller 9 slipping out of the receiving groove during operation and reduces the risk of accidental opening of the locking component due to vibration. The rotating shaft connection allows the locking component to rotate around a fixed axis, and in the unlocked state, the opening can be fully exposed, facilitating the replacement of the pressure roller 9.

[0091] Specifically, when the pressure roller 9 needs to be installed, the locking member rotates to the open position to expose the opening of the receiving groove. After the end of the pressure roller 9 is placed into the receiving groove, the locking member rotates to the closed position to cover the opening. At this time, the locking member is fastened to the pressure roller arm with bolts, forming a closed annular constraint structure. In the locked state, the end of the pressure roller 9 is confined within the cavity formed by the receiving groove and the locking member. During maintenance, the constraint can be released simply by loosening the bolts and rotating the locking member, without disassembling the entire pressure roller module.

[0092] Through the above technical solution, this application achieves one-click locking and unlocking during the installation of the pressure roller 9. The end of the pressure roller 9 is completely constrained within the closed space formed by the receiving groove and the locking component, preventing displacement caused by vibration during winding. Maintenance only requires tightening or loosening a single bolt to complete the installation and removal of the pressure roller 9, significantly reducing equipment downtime. The rigid connection in the locked state avoids the elastic deformation problem of traditional snap-fit ​​structures, ensuring no relative movement between the pressure roller arm and the locking component, thereby maintaining uniform pressure application.

[0093] This application further proposes that the guide rail 2 is a straight square rod-shaped protrusion integrally formed with the main beam 1, and the pressure roller module also includes a first slider 12 installed on the first connecting arm 3 and slidably connected to the guide rail 2, and a second slider 13 installed on the second connecting arm 6 and slidably connected to the guide rail 2.

[0094] Among them, the guide rail 2 is a straight square rod protrusion integrally formed with the main beam 1. It refers to a continuously extending rectangular cross-section guide structure formed on the surface of the main beam 1 by casting or machining. It forms an integral and non-removable whole with the main beam 1. For example, a straight protrusion can be milled on the main beam 1 using a CNC machining center.

[0095] The first slider 12 and the second slider 13 are sliding components with guide grooves. The shape of their inner grooves forms a clearance fit with the cross-section of the square rod-shaped guide rail 2. Lubricant can be added to the sliding contact surface to reduce the coefficient of friction. The sliders are fixed to the bottom of the connecting arm by bolts, forming a sliding pair along the axial direction of the guide rail 2.

[0096] Through the above technical solution, this application effectively solves the problem of slippage and jamming of the pressure roller module caused by assembly error of the guide rail 2 of the slitting machine. The one-piece molded guide rail 2 structure avoids the cumulative error caused by split installation, and the square rod cross-section design enhances the load-bearing stability of the guide rail 2.

[0097] This application further proposes that there are two guide rails 2, which are arranged in parallel. There are also two first sliders 12 and two second sliders 13. The two first sliders 12 are installed at intervals on the first connecting arm 3 and are slidably connected to the two guide rails 2 respectively. The two second sliders 13 are installed at intervals on the second connecting arm 6 and are slidably connected to the two guide rails 2 respectively.

[0098] The two parallel guide rails 2 refer to the guide structures extending axially along the main beam 1. The two first sliders 12 refer to the sliding components installed at intervals on the first connecting arm 3, which reduce stress concentration at single points by distributing the load. The two second sliders 13 refer to the sliding components installed at intervals on the second connecting arm 6, and their structure is similar to that of the first sliders 12, which enhance the stability of the movement trajectory through double constraints. Interval installation means that the two sliders maintain a certain distance on the first connecting arm 3 or the second connecting arm 6, which can be achieved by using equally spaced mounting holes, so that the connecting arms form symmetrical support on the guide rails 2.

[0099] Specifically, a double-rail guide structure is formed by setting two parallel guide rails 2. Two spaced sliders are installed on the first connecting arm 3 and the second connecting arm 6, so that each connecting arm forms symmetrical support on the two guide rails 2. When the pressure roller module moves along the guide rails 2, the two sliders of the first connecting arm 3 slide synchronously on the two guide rails 2, and the two sliders of the second connecting arm 6 also slide synchronously on the two guide rails 2. The four-point support layout gives the movement trajectory of the pressure roller module double constraints, effectively eliminating the skew caused by unilateral gaps or wear. The symmetrical distribution of the parallel guide rails 2 ensures that the load is evenly transmitted to the main beam 1, avoiding the impact of local deformation on the movement accuracy.

[0100] Compared to existing technologies, traditional slitting machines typically employ a single guide rail 2 with a single slider, where the pressure roller module relies on support from only one side during movement. This makes it prone to trajectory deviation due to guide rail 2 deformation or slider gaps. The dual guide rail 2 and dual slider structure of this application significantly improves the rigidity and stability of the guide rail 2 system by increasing the contact area and providing symmetrical support. In existing technologies, a single guide rail 2 is prone to flexural deformation under load, while the parallel dual guide rails 2 of this application distribute the load to both sides of the main beam 1, reducing local stress concentration on the guide rail 2 and improving its resistance to deformation.

[0101] Through the above technical solution, this application solves the problem of uneven movement of the pressure roller module caused by uneven force distribution under a single guide rail 2 structure, enhancing the trajectory stability and positioning accuracy during movement. The parallel arrangement of the double guide rails 2 ensures that the pressure roller module remains horizontal even during high-speed movement, avoiding uneven pressure distribution caused by vibration. The four-point symmetrical support slider layout effectively suppresses the torsional tendency of the connecting arm, ensuring that the pressure roller 9 always maintains perpendicular alignment with the winding station, thereby improving the winding quality of the roll material and the reliability of equipment operation.

[0102] This application further proposes configuring the first locking device as a bolt and the second locking device as a bolt.

[0103] The first locking device, a bolt, secures the first connecting arm 3 to the guide rail 2 using the bolt's threaded structure. Specifically, a standard hexagonal head bolt with a nut can be used. The bolt's screwing force is converted into a clamping force on the connecting arm to prevent slippage. The second locking device, also a bolt, uses the same principle to fix the position of the second connecting arm 6. Specifically, a bolt of the same specification as the first locking device can be used to ensure symmetry. The thread pitch and screwing depth of the bolt can adjust the locking force.

[0104] Specifically, when the first connecting arm 3 needs to be fixed, the operator passes a bolt through the mounting hole of the connecting arm and screws it into the threaded hole of the guide rail 2. As the bolt rotates, its head contacts the surface of the connecting arm and generates axial pressure. This pressure is converted into friction between the connecting arm and the guide rail 2, thereby eliminating the relative movement between them. For fixing the second connecting arm 6, the same procedure is used to screw another bolt into the corresponding position on the guide rail 2. At this time, the two connecting arms are independently locked, and the overall position of the pressure roller module is fixed. When the position needs to be adjusted, the bolt is rotated in the opposite direction to release the lock, and the connecting arm resumes its sliding function.

[0105] Through the above technical solution, this application can realize the rapid fixing and release of the connecting arm by utilizing the mechanical self-locking principle of bolts, which solves the problems of complex structure and low adjustment efficiency of traditional locking devices. At the same time, the application of standardized bolts reduces maintenance costs, and the high reliability of the threaded pair ensures the positioning accuracy of the pressure roller module in continuous operation.

[0106] This application further proposes a pressure roller module structure for a slitting machine, including a first mounting member connected to the first force-receiving part 41 of the first pressure roller arm 4 of the pressure roller 9, wherein a rotatable first steel ball is mounted on one end of the first mounting member near the first cylinder 5, and the first steel ball is positioned directly opposite the piston rod of the first cylinder 5; and a second mounting member connected to the second force-receiving part 71 of the second pressure roller arm 7 of the pressure roller 9, wherein a rotatable second steel ball is mounted on one end of the second mounting member near the second cylinder 8, and the second steel ball is positioned directly opposite the piston rod of the second cylinder 8.

[0107] The first and second mounting components refer to the support structures that are rigidly connected to the force-bearing part of the pressure roller arm. Specifically, they can be fixed by bolts or welded to transfer the thrust of the cylinder to the pressure roller arm.

[0108] The first and second steel balls are smooth, spherical rolling elements, typically made of bearing steel, and mounted inside the mounting component via a rotating shaft. This allows them to rotate freely around their axis, converting the linear motion of the cylinder piston rod into rolling contact. "Aligned" means the central axis of the steel balls coincides with the moving axis of the cylinder piston rod. This can be achieved by adjusting the fixed position of the mounting component or using a coaxial positioning structure, ensuring that the thrust is transmitted in a linear direction.

[0109] Specifically, when the cylinder pushes the piston rod to extend, the end of the piston rod contacts the surface of the steel ball. Under the action of the contact force, the steel ball rotates, converting the original sliding friction into rolling friction. The rotational motion of the first steel ball reduces the frictional resistance at the contact surface with the piston rod, allowing the first pressure roller arm 4 of the pressure roller 9 to respond quickly to changes in the cylinder thrust. At the same time, the second steel ball eliminates the sliding friction between the second cylinder 8 and the second pressure roller arm 7 of the pressure roller 9 in the same way. Due to the facing arrangement of the steel balls on both sides, the direction of the thrust on the pressure roller arm is always consistent with the cylinder axis, avoiding the deflection of the pressure roller arm or uneven pressure transmission caused by lateral force.

[0110] Through the above technical solution, this application effectively reduces the frictional resistance of the contact surface between the cylinder and the pressure roller arm, avoids pressure transmission lag or deviation caused by friction, ensures that the pressure roller 9 adjusts the pressure of the roll material more accurately and smoothly, and at the same time reduces the wear of the contact surface and extends the service life of related components.

[0111] This application further proposes that the slitting machine includes two parallel main beams 1, and each main beam 1 is provided with two pressure roller modules.

[0112] Specifically, two pressure roller modules installed on each main beam 1 are arranged at intervals along the length of the main beam 1, forming four sets of independently controlled pressure application points.

[0113] The above technical solution allows for modular maintenance without interrupting production, and the maintenance of a single pressure roller module will not affect the normal operation of the other three modules.

[0114] This application further proposes a slitting machine including a first electro-proportional valve electrically connected to a first cylinder 5 and a second electro-proportional valve electrically connected to a second cylinder 8; the first electro-proportional valve adjusts the extension length of the piston rod of the first cylinder 5 in real time; the second electro-proportional valve adjusts the extension length of the piston rod of the second cylinder 8 in real time.

[0115] The first electro-proportional valve is a regulating device that controls gas flow through a current signal. Specifically, it can be implemented using a solenoid valve with a feedback control module. By changing the input current, it linearly adjusts the output gas pressure, thereby precisely controlling the displacement of the cylinder piston rod. The second electro-proportional valve operates on the same principle as the first, but acts independently on the second cylinder 8. Real-time adjustment refers to continuously adjusting the piston rod stroke during the slitting process based on pressure data collected by sensors or a preset program.

[0116] Specifically, during the film winding process, when a change in material thickness is detected, the control system sends differentiated current signals to the first and second electro-proportional valves. The first electro-proportional valve adjusts its output air pressure based on the received current value, causing the piston rod of the first cylinder 5 to displace by a corresponding length, pushing the first pressure roller arm 4 of the pressure roller 9 to rotate around its pivot point, thus changing the downward pressure at one end of the pressure roller 9. Simultaneously, the second electro-proportional valve independently controls the extension of the piston rod of the second cylinder 8, driving the second pressure roller arm 7 of the pressure roller 9 to perform compensating movements. The coordinated operation of the two systems ensures that the pressure difference between the two ends of the pressure roller 9 remains within a set range, preventing roll material shifting or wrinkling due to excessive pressure on one side.

[0117] Compared to existing technologies, traditional slitting machines typically use manually adjustable valves or fixed-stroke cylinders, requiring pressure parameters to be adjusted via mechanical knobs after the machine is stopped, making it impossible to dynamically correct pressure deviations during operation. This solution, however, utilizes digital control of an electro-proportional valve, enabling a millisecond-level response to material tension changes and instantly correcting the thrust of the cylinders on both sides, maintaining balanced pressure on the pressure rollers 9.

[0118] Through the above technical solution, this application solves the problem of loose or excessively tight winding caused by pressure adjustment lag in the slitting operation, and achieves dynamic balance control of the pressure at both ends of the pressure roller 9. This solution can automatically adapt to the processing requirements of films of different materials and thicknesses, maintain stable winding quality in continuous production, and reduce the frequency of manual intervention and operational complexity.

Claims

1. A slitting machine with a swingable pressure roller, characterized in that, The system includes a main beam and a pressure roller module. The main beam is provided with a guide rail extending along its axial direction. The pressure roller module includes: The first connecting arm is movably mounted on the guide rail; The first pressure roller arm includes a first force-receiving part and a first support part that are perpendicularly connected to each other. The connection between the first force-receiving part and the first support part is a first pivot part, and the first pivot part is rotatably connected to the first connecting arm. The first cylinder, the first force-bearing part is located on the movement path of the piston rod of the first cylinder; The second connecting arm is movably mounted on the guide rail; The second pressure roller arm includes a second force-receiving part and a second support part that are perpendicularly connected to each other. The connection between the second force-receiving part and the second support part is a second pivot part, and the second pivot part is rotatably connected to the second connecting arm. The second cylinder, the second force-receiving part is located on the movement path of the piston rod of the second cylinder; The pressure roller is rotatably connected at one end to the first support portion and rotatably connected at the other end to the second support portion; A first locking device is configured to secure the first connecting arm to the guide rail; The second locking device is configured to secure the second connecting arm to the guide rail.

2. The slitting machine with a swingable pressure roller as described in claim 1, characterized in that, The first connecting arm is provided with a first mounting groove, the first connecting arm is provided with a first through hole penetrating the first mounting groove, the first pivot part is provided with a first pivot hole, and a first rotating shaft is inserted into the first through hole and the first pivot hole. And / or, the second connecting arm is provided with a second mounting groove, the second connecting arm is provided with a second through hole penetrating the second mounting groove, the second pivot part is provided with a second pivot hole, and a second rotating shaft is inserted into the second through hole and the second pivot hole.

3. The slitting machine with a swingable pressure roller as described in claim 1, characterized in that, The first pressure roller arm is provided with a first receiving groove, the opening of the first receiving groove faces away from the first force-bearing part, and one end of the pressure roller is detachably installed in the first receiving groove; And / or, the second pressure roller arm is provided with a second receiving groove, the opening of the second receiving groove facing away from the second force-bearing part, and one end of the pressure roller is detachably installed in the second receiving groove.

4. The slitting machine with a swingable pressure roller as described in claim 3, characterized in that, A rotatable first locking member is installed at the opening of the first receiving groove. The first locking member is connected to the first pressure roller arm via a rotating shaft. The first locking member is configured to cover the opening of the first receiving groove and lock it to the first pressure roller arm. And / or, a rotatable second locking member is installed at the opening of the second receiving groove, the second locking member being connected to the second pressure roller arm via a rotating shaft, the second locking member being configured to cover the opening of the second receiving groove and lock with the second pressure roller arm.

5. The slitting machine with a swingable pressure roller as described in claim 1, characterized in that, The guide rail is a straight, square-shaped protrusion integrally formed with the main beam, and the pressure roller module further includes: The first slider is mounted on the first connecting arm and slidably connected to the guide rail; The second slider is mounted on the second connecting arm and slidably connected to the guide rail.

6. The slitting machine with a swingable pressure roller as described in claim 5, characterized in that, The guide rails are arranged in parallel. There are also two first sliders and two second sliders. The two first sliders are installed at intervals on the first connecting arm and are slidably connected to the two guide rails respectively. The two second sliders are installed at intervals on the second connecting arm and are slidably connected to the two guide rails respectively.

7. The slitting machine with a swingable pressure roller as described in claim 1, characterized in that, The first locking device is a bolt; and / or, the second locking device is a bolt.

8. The slitting machine with a swingable pressure roller as described in claim 1, characterized in that, The pressure roller module includes: The first mounting component is connected to the first force-bearing part; The first steel ball is rotatably mounted on the end of the first mounting member near the first cylinder, and the first steel ball is positioned directly opposite the piston rod of the first cylinder; The second mounting component is connected to the second force-bearing part; The second steel ball is rotatably mounted on one end of the second mounting member near the second cylinder, and the second steel ball is positioned directly opposite the piston rod of the second cylinder.

9. The slitting machine with a swingable pressure roller as described in claim 1, characterized in that, The slitting machine also includes two parallel main beams, each of which is equipped with two pressure roller modules.

10. The slitting machine with a swingable pressure roller as described in claim 1, characterized in that, The slitting machine includes a first electro-proportional valve electrically connected to the first cylinder and a second electro-proportional valve electrically connected to the second cylinder; The first electro-proportional valve adjusts the extension length of the piston rod of the first cylinder in real time. The second electro-proportional valve adjusts the extension length of the piston rod of the second cylinder in real time.

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