Plate shearing machine with adjustable shearing width and control method of plate shearing machine

Abstract

The invention relates to a plate shearing machine with the adjustable shearing width and a control method of the plate shearing machine. The transmission shaft assembly comprises a first transmission shaft and a second transmission shaft which are vertically arranged at intervals; the disc cutter assembly comprises an upper cutter head assembly and a lower cutter head assembly which are sequentially arranged from top to bottom, the upper cutter head assembly and the lower cutter head assembly are connected through a connecting base, so that disc cutter sets are formed, and the disc cutter sets are further slidably arranged on first sliding rails correspondingly arranged on the machine frame through connecting supports. Each connecting support is further provided with a locking device capable of locking the connecting support relative to the machine frame, the machine frame is further provided with a transverse moving carrying mechanism capable of moving in a reciprocating mode in the direction parallel to the first transmission shaft, and the transverse moving carrying mechanism can drive the cutting disc sets to move to set positions in the axial direction. The device has the advantages of being more simplified in structure, more efficient and accurate in tailoring width adjustment and convenient to maintain.

Description

Technical Field

[0001] This invention relates to the field of shearing machine technology, and in particular to a shearing machine with adjustable cutting width and a control method for the shearing machine. Background Technology

[0002] Shearing machines are essential equipment in the sheet metal processing industry, primarily used for cutting metal sheets (such as aluminum plates and strips) to length or shape. Based on their shearing methods and structural characteristics, shearing machines can be categorized into flat-blade shears, oblique-blade shears, disc shears, and flying shears. Among these, disc shears, with their rotating disc blades, enable continuous longitudinal shearing of moving sheet metal and are widely used in finishing, edge trimming, and slitting processes for aluminum plates and strips, and thin steel strips.

[0003] Traditional disc shearing machines typically consist of several pairs of cutter discs mounted on a frame. Each pair of discs comprises upper and lower blades, each mounted on an independent drive shaft. To achieve shearing widths, the axial position of each disc is adjusted individually. Existing technologies commonly employ adjustment methods such as moving each disc assembly separately via independent lead screw and nut mechanisms or worm gear mechanisms, or using a rack and pinion structure for coordinated adjustment. While these methods achieve width adjustment to some extent, they suffer from the following drawbacks: each disc assembly usually requires an independent lateral drive mechanism (such as a motor or lead screw), leading to complex equipment structure, increased manufacturing costs, and a large footprint. In particular, adjusting each disc individually is cumbersome, making it difficult to ensure that multiple disc assemblies move quickly and accurately to the target position, impacting production pace and adjustment precision.

[0004] Therefore, there is an urgent need for a shearing machine with a simpler structure and more efficient and precise adjustment scheme for cutting width. Summary of the Invention

[0005] The first technical problem to be solved by this invention is to provide a shearing machine with a simpler structure, more efficient and precise cutting width adjustment, and easier maintenance, in light of the current state of the technology.

[0006] The second technical problem to be solved by the present invention is to provide a control method for a shearing machine that allows for more efficient and precise adjustment of the cutting width, in light of the current state of the technology.

[0007] The technical solution adopted by this invention to solve the first technical problem is as follows: a shearing machine with adjustable cutting width, comprising: a frame; a transmission shaft assembly, including a first transmission shaft and a second transmission shaft arranged vertically at intervals, both the first and second transmission shafts being rotatably mounted on the frame by a first driving mechanism; a disc cutter assembly, including an upper cutter disc assembly and a lower cutter disc assembly arranged vertically in sequence, the upper cutter disc assembly being slidably mounted on the first transmission shaft along the axial direction, the upper cutter disc assembly including a first cutter disc rotatably driven by the first transmission shaft, and the lower cutter disc assembly being slidably mounted on the second transmission shaft along the axial direction, the lower cutter disc assembly including a second cutter disc rotatably driven by the second transmission shaft. The first cutting part correspondingly arranged on the first cutter head and the second cutting part correspondingly arranged on the second cutter head are vertically misaligned to form a cutting fit; the upper cutter head assembly and the lower cutter head assembly are connected by a connecting seat to form a disc cutter group. The disc cutter group has at least two arranged sequentially in the axial direction. Each disc cutter group is also slidably mounted on a corresponding first slide rail on the frame through its own connecting bracket. Each connecting bracket is also provided with a locking device that can lock the connecting bracket relative to the frame. The frame is also provided with a transverse transport mechanism that can reciprocate in a direction parallel to the first drive shaft. The transverse transport mechanism can drive each disc cutter group to move axially to a set position. Multiple "disc cutter groups" consisting of upper and lower cutter discs can be moved simultaneously or sequentially by the transverse conveying mechanism, enabling rapid and flexible adjustment of the shearing width to meet the processing needs of different specifications of sheet metal. The upper and lower cutter disc assemblies are fixed together as a whole unit by the connecting seat and slide on a unified first slide rail by the connecting bracket, ensuring that the upper and lower cutters maintain a precise correspondence and stable relative position at all times during movement and operation, thereby guaranteeing the shearing quality. The design of multiple disc cutter groups allows for multiple parallel shearing passes, improving equipment utilization and production efficiency.

[0008] The aforementioned "locking device" can be understood as a mechanical locking structure that can fix moving parts to the frame. It can be a guide rail clamp, or a hydraulic clamping block, screw pressure plate mechanism, eccentric wheel locking mechanism, etc. in the prior art.

[0009] The aforementioned first drive mechanism refers to the power source and transmission system used to drive the rotation of the drive shaft. Specifically, it can be a single motor driving both the first and second drive shafts simultaneously via a belt / gear / chain, or it can be two servo motors driving the two drive shafts synchronously.

[0010] Considering that manual judgment and locking are required during width adjustment, which poses risks of operational delays, inconsistent locking forces, or human error, affecting positioning accuracy and operational safety, an improvement is made: the lateral transport mechanism and locking device are electrically connected to the shearing machine's controller. When the lateral transport mechanism moves the corresponding disc cutter group to the set position, the controller controls the locking device to lock each disc cutter group relative to the frame. By linking the controller with the lateral transport mechanism and locking device, a closed-loop control system of automatic locking after movement to the set position is achieved, eliminating errors and delays caused by human intervention. The automated process ensures that each disc cutter group is locked in the set position promptly and reliably, significantly improving the overall width adjustment's repeatability and system reliability.

[0011] To provide a simple, precise, and reliable drive and transport mechanism that can reliably engage and disengage with a movable disc cutter assembly, the improved transverse transport mechanism includes a second drive motor, a transmission screw driven by the second drive motor, a lead screw nut slide seat that engages with the transmission screw, and a telescopic rod assembly mounted on the lead screw nut slide seat. The frame also has a second slide rail, on which the lead screw nut slide seat slidably rests. The telescopic rod assembly includes a telescopic drive component and a telescopic rod that extends and retracts driven by the drive component. A connecting bracket corresponding to the disc cutter assembly has a mating hole for inserting the telescopic rod. After the telescopic rod is inserted into the mating hole of the connecting bracket, the lead screw nut slide seat drives the corresponding disc cutter assembly to move axially as the transmission screw rotates. By employing a screw-nut mechanism, the rotational motion of the motor is converted into linear motion of the lead screw nut slide seat, resulting in smoother transmission and more accurate positioning. Furthermore, by inserting the telescopic rod assembly into the mating hole on the connecting bracket, a reliable connection and quick disengagement of power transmission between the transverse conveying mechanism and the disc cutter group can be achieved. The structure is simple, reliable, and effective.

[0012] Considering that the layout of the lateral conveying mechanism may interfere with material conveying or other equipment components, and that misalignment or misoperation is prone to occur when the telescopic rod mates with the mating hole (due to a lack of guidance and confirmation), as an improvement, the lateral conveying mechanism is located below the disc cutter assembly. The mating hole is located at the bottom of the connecting bracket and extends vertically. The telescopic rod is located at the top of the nut slide and can extend and retract vertically. The nut slide is also equipped with a sensor for identifying whether the nut slide has moved below the corresponding disc cutter assembly. The sensor is electrically connected to the controller of the shearing machine. Placing the lateral conveying mechanism below the cutter assembly makes full use of the space under the equipment, resulting in a more compact structure and without interfering with the shearing and feeding areas above. In particular, by identifying the target cutter group through the sensor, the controller controls the telescopic rod's movement accordingly, achieving automation and intelligence in the mating process and improving operational accuracy and safety.

[0013] The aforementioned sensor refers to a device used to detect physical states (such as position or presence) and convert them into electrical signals. In this application, the sensor used to identify whether the nut slide has moved below the tool assembly can specifically be a proximity switch, a photoelectric sensor, or a vision recognition system, etc.

[0014] Considering that a single-point connection (single hole, single rod) may generate torque that causes the connecting bracket to deflect or jam when driving a heavy tool assembly, affecting the smoothness of movement and positioning accuracy, an improvement is made by having two mating holes arranged along the front-rear direction. These two mating holes are located on the front and rear sides of a vertical plane passing through the axis of the transmission lead screw. The two front-rear mating holes form a two-point connection with the telescopic rod, generating a relatively balanced driving force during operation, effectively preventing the tool assembly from twisting or tilting during movement. This two-point connection also makes the force transmission between the handling mechanism and the tool assembly more balanced, ensuring smooth, linear movement of the tool assembly along the axial direction and improving the stability of the adjustment process.

[0015] Considering that the sliding support structure of the connecting bracket may lack rigidity, and that the installation of the transverse transport mechanism requires independent space, potentially leading to a loose overall layout, as an improvement, the connecting bracket is an inverted U-shape. The frame includes two vertical plates arranged at a distance from each other, with the gap between the two plates forming an installation chamber for the transverse transport mechanism. The top edges of both vertical plates are equipped with the first slide rails. The connecting bracket is mounted on the tops of the two vertical plates and slidably rests on the two first slide rails. The inverted U-shaped connecting bracket is mounted on the tops of the two vertical plates and receives double-sided support through the two first slide rails, forming a stable and torsional-resistant frame structure. The installation chamber naturally formed between the two vertical plates provides a protected installation space for the transverse transport mechanism, achieving a compact and reasonable overall layout.

[0016] Considering that the locking device needs to provide a sufficiently large and uniform locking force to secure the heavy-duty blade assembly, while also adapting to the requirements of automated control, as an improvement, the top of each of the two opposing sidewalls of the two upright plates is provided with a third slide rail extending in a direction parallel to the first drive shaft. The connecting bracket includes two opposing arms, each of which is connected to the corresponding third slide rail via a guide rail clamp, which constitutes the locking device. The guide rail clamp provides a large-area clamping force perpendicular to the direction of movement, with a large and uniform locking force, effectively suppressing the slight displacement of the blade assembly under shearing force. The guide rail clamp is typically pneumatically or hydraulically driven, and easily controlled by an electrical signal controller to achieve fast and reliable automatic locking and unlocking.

[0017] Considering that relying solely on the bottom two sides for support might cause slight wobbling at the top of wider or more stressed blade assemblies under shearing force, affecting shearing accuracy, the frame is improved by including a crossbeam above the mounting chamber. This crossbeam has a fourth slide rail extending parallel to the first drive shaft, and the top of each disc blade assembly slides into contact with this fourth slide rail. This sliding connection between the top of the blade assembly and the fourth slide rail creates a three-dimensional frame support structure with "top auxiliary support and bottom double-sided main support," further restricting the blade assembly's freedom of movement in the vertical and horizontal planes. This significantly enhances the rigidity and stability of the entire blade assembly system during movement and shearing, ensuring high-precision shearing.

[0018] In existing disc shearing machines, the upper and lower cutter discs (forming a cutter disc assembly) are relatively independent, each mounted on a separate, laterally arranged drive shaft. When the shearing width of the sheet metal changes, requiring adjustment of the axial position of the cutter disc assembly, the upper and lower cutter discs need to be adjusted individually. After both discs are adjusted to their proper positions, the axial clearance between the two discs must be checked to ensure it meets requirements. If it does not, readjustment and testing are necessary. The axial position adjustment process of this type of cutter assembly is cumbersome and has low assembly efficiency, making it difficult for the shearing machine to meet the needs of cutting multi-width plates. As an improvement, the upper cutter head assembly also includes an upper cutter holder, with the first cutter head rotatably mounted on the upper cutter holder. The lower cutter head assembly includes a lower cutter holder, with the second cutter head rotatably mounted on the lower cutter holder. The axis of the second cutter head is parallel to the axis of the first cutter head. A connecting seat connects the upper and lower cutter holders, and the connecting seat has a first and a second discharge groove arranged adjacent to each other in the front-rear direction. The inlet of the first discharge groove is opposite to the bottom edge of the first cutter head, and the inlet of the second discharge groove is opposite to the top edge of the second cutter head. The first and second discharge grooves specially provided on the connecting seat correspond to the cutting points of the upper and lower cutter heads, respectively, and can immediately guide the sheared material to a specific collection path. This effective discharge structure avoids interference of the sheared material near the cutter, ensuring a continuous, smooth, and safe shearing process.

[0019] To avoid the mounting position of the connector interfering with the feeding process of the sheet metal, as an improvement, the position where the bottom of the first cutter head and the top of the second cutter head are sheared together is designated as the shearing point. The front side of the shearing point of the cutter assembly is designated as the receiving side, and the rear side of the shearing point of the cutter assembly is designated as the discharging side. The connector is located on the discharging side of the cutter assembly. By confining the connector to the discharging side, its structure matches the flow of the shearing process. This ensures that the sheet metal can smoothly reach the shearing point without affecting its arrival, and also ensures that the sheared sheet metal can be captured and guided promptly and accurately by the discharge groove on the connector, thus optimizing the overall layout.

[0020] To optimize the guiding path of the discharge chute, enabling the upper and lower parts of the sheet material to be discharged more smoothly and efficiently in different directions, and reducing the overall space occupation of the component, as an improvement, the opening directions of the first discharge chute and the second discharge chute are opposite. The first discharge chute gradually slopes downward from its inlet to its outlet, while the second discharge chute gradually slopes upward from its inlet to its outlet, and the first and second discharge chutes partially overlap in the vertical direction. The design of the first discharge chute sloping downward and the second discharge chute sloping upward with opposite opening directions conforms to the natural movement trend of the two parts of the sheet material after shearing due to the action of the blade (one part downward, and the other part rebounding or lifting upward), reducing discharge resistance. The partial overlap of the two chutes in the vertical direction forms a compact cross layout, achieving dual-channel discharge within a limited space and avoiding significant collisions between the two sheared sheets during the discharge process.

[0021] In order to reliably connect the upper and lower tool holders and stably form the required double discharge slot structure, as an improvement, the connecting seat includes a first connecting block located above the first discharge slot and a second connecting block located below the second discharge slot. The first connecting block is connected to the bottom of the upper tool holder, and the second connecting block is connected to the top of the lower tool holder.

[0022] Considering the limited depth of the first and second discharge channels on the connecting seat, the constraint on the edge of the material sheet during discharge is limited, and the material sheet is prone to detaching from the corresponding discharge channel during discharge. To ensure discharge stability, as an improvement, the bottom of the first connecting block also has a first extension wall that is flush with the top side wall of the first discharge channel, and the top of the second connecting block also has a second extension wall that is flush with the bottom side wall of the second discharge channel. By setting the extension wall that is flush with the side wall of the discharge channel, the constraint and support on the edge of the material sheet can be increased, preventing the edge of the material sheet from detaching from the discharge channel and ensuring smooth discharge.

[0023] To ensure the accuracy of the installation position and the connection strength between the connecting seat and the upper and lower knife holders, and to prevent displacement or loosening under repeated impacts of shearing force, as an improvement, the top of the first connecting block has a first limiting step, and the bottom of the upper knife holder has a first mating step that is adapted to the first limiting step.

[0024] The bottom of the second connecting block has a second limiting step, and the top of the lower tool holder has a second mating step that is adapted to the second limiting step.

[0025] Through the mutual matching limiting steps and mating steps, rapid and precise positioning and mechanical locking between the connecting seat and the tool holder are achieved, which enhances the rigidity and reliability of the connection and ensures the stability of the entire tool assembly structure during the shearing process.

[0026] To optimize the structural design of the connector and provide flexibility in the installation direction of the tool assembly, the first discharge slot and first connecting block of the connector are arranged in a centrally symmetrical manner with the second discharge slot and second connecting block. This centrally symmetrical arrangement ensures a more balanced stress distribution on the connector when subjected to shear reaction forces. Furthermore, this symmetrical design may allow the entire tool assembly (or the connector itself) to be rotated or repositioned under specific circumstances to adapt to different discharge direction requirements, thus improving the versatility and maintainability of the components.

[0027] To provide a tool holder structure that facilitates the installation and removal of the tool disc and enables effective connection to an external drive system, the upper tool holder has a first mounting hole opened along the axial direction. A first tool disc shaft on the first tool disc is rotatably fitted into the first mounting hole via a first bearing. The first tool disc shaft of the first tool disc has a first assembly hole opened along the axial direction for an external drive shaft to pass through. The lower tool holder has a second mounting hole opened along the axial direction. A second tool disc shaft on the second tool disc is rotatably fitted into the second mounting hole via a second bearing. The second tool disc shaft of the second tool disc has a second assembly hole opened along the axial direction for an external drive shaft to pass through. This structural design allows the first and second tool discs to be easily installed and fixed into the corresponding mounting holes in the upper and lower tool holders. Simultaneously, the corresponding assembly holes on the tool disc shafts of the tool discs provide a standard interface for the connection of external drive shafts, facilitating power transmission and modular installation and replacement of the entire tool assembly.

[0028] To ensure cutting effect and achieve stable feeding and discharging of the material, as an improvement, the first cutter disc includes a first disc body and a first cutting part connected to the periphery of the first disc body. A first rubber ring is also sleeved on the first disc body adjacent to the first cutting part. The second cutter disc includes a second disc body and a second cutting part connected to the periphery of the second disc body. A second rubber ring is also sleeved on the second disc body adjacent to the second cutting part. The first cutting part and the second cutting part are vertically staggered. The first rubber ring and the second cutting part are vertically opposite each other.

[0029] The first rubber ring is opposite the second cutting section, and the second rubber ring is opposite the first cutting section. When the upper and lower cutter discs close for shearing, the rubber rings can effectively press the sheet material being sheared, ensuring smooth shearing and clean cuts. In particular, the contact between the rubber rings and the sheet material greatly increases the friction, which can effectively drive the sheet material forward stably. The staggered arrangement of the cutting sections and the corresponding rubber rings not only completes the shearing but also achieves the material pressing function, reducing sheet material deformation and cutter wear. The rubber material also has a certain shock absorption and noise reduction effect.

[0030] The technical solution adopted by the present invention to solve the second technical problem is: a control method for a shearing machine, wherein the shearing machine is the aforementioned shearing machine with adjustable cutting width, comprising the following steps:

[0031] Step S1: Start the width adjustment program. The controller controls the second drive motor in the transverse conveying mechanism to work, so that the transmission screw rotates and drives the screw nut slide and its telescopic rod assembly to move to the bottom of the disc cutter group to be adjusted.

[0032] Step S2: The controller controls the drive unit in the telescopic rod assembly to extend the telescopic rod based on the sensor's recognition signal of this position, and inserts the telescopic rod into the mating hole of the connecting bracket of the disc cutter group;

[0033] Step S3: The controller controls the locking device corresponding to the disc cutter group to unlock;

[0034] Step S4: The controller controls the second drive motor in the transverse conveying mechanism to work, so that the transmission screw rotates and drives the screw nut slide and the disc cutter group provided on the screw nut slide to move axially to the set position;

[0035] Step S5: The controller controls the locking device corresponding to the disc cutter group to lock, thus fixing the disc cutter group to the frame;

[0036] Step S6: The controller controls the drive unit to work, causing the telescopic rod to retract and disengage from the mating hole of the connecting bracket;

[0037] Step S7: Repeat steps S1 to S6 to complete the position adjustment of the remaining disc cutter groups in sequence.

[0038] Preferably, in step S1, the positioning of the transverse conveying mechanism is performed based on the identification signal of the disc cutter group by the sensor on the nut slide; in step S4, after the disc cutter group moves to the set position, the controller also performs a position verification step: if an error is detected between the actual position and the set position, the transverse conveying mechanism is controlled to make a fine adjustment to eliminate the error, and then step S5 is executed.

[0039] The control scheme of the above-mentioned shearing machine decomposes the complex adjustment process in the existing technology into standardized and automated steps, which are executed sequentially by the controller, greatly reducing the difficulty of operation and error rate, and improving adjustment efficiency. The introduction of position verification and fine-tuning steps forms a closed-loop control system that can automatically compensate when a position error is detected, ensuring the accuracy of the final position of each blade group, thereby guaranteeing the accuracy of the overall shearing width.

[0040] The cutting width adjustment program is initiated. The transmission screw of the lateral transport mechanism actuates, driving the nut slider and the telescopic rod assembly mounted on it to move below the corresponding disc cutter group. Then, the telescopic rod assembly actuates, inserting the telescopic rod into the mating hole of the connecting bracket for the disc cutter group. The locking device corresponding to the disc cutter group unlocks. The transmission screw of the lateral transport mechanism continues to actuate, driving the disc cutter group axially to the set position. The locking device corresponding to the disc cutter group locks, fixing the disc cutter group relative to the frame. Then, the telescopic rod of the telescopic rod assembly actuates, moving from the mating hole of the connecting bracket... The screw retracts from the mating hole; then, the transverse transfer mechanism moves the screw nut slider and the telescopic rod assembly mounted thereon to the bottom of another disc cutter group adjacent to the previous disc cutter group. Then, the telescopic rod assembly moves, and the telescopic rod inserts into the mating hole of the connecting bracket of the disc cutter group. The locking device corresponding to the disc cutter group unlocks, and the transmission screw of the transverse transfer mechanism continues to move, driving the disc cutter group to move axially to the set position. The locking device corresponding to the disc cutter group locks, fixing the disc cutter group relative to the frame. Then, the telescopic rod of the telescopic rod assembly moves and retracts from the mating hole of the connecting bracket.

[0041] Compared with existing technologies, the advantages of this invention are as follows: The shearing machine of this invention significantly simplifies the structure by connecting the upper and lower blade assemblies into a single disc blade group and using a shared transverse transport mechanism for unified adjustment of axial position. This replaces multiple independent drives with a single transverse transport mechanism, reducing manufacturing costs and space requirements. Each disc blade group moves and adjusts its position through the same mechanism, avoiding the cumbersome process of adjusting each blade individually in traditional methods, and achieving fast and precise width positioning. The design of corresponding slide rails and locking devices makes the movement of each disc blade group more stable and the locking more reliable, greatly improving the convenience of operation and maintenance. Attached Figure Description

[0042] Figure 1 This is a three-dimensional structural diagram of the tool assembly according to an embodiment of the present invention, showing a connecting bracket;

[0043] Figure 2 This is a three-dimensional structural diagram of the tool assembly according to an embodiment of the present invention, omitting the connecting bracket;

[0044] Figure 3 This is a three-dimensional structural diagram of the tool assembly from another angle according to an embodiment of the present invention;

[0045] Figure 4 This is a rear view of the tool assembly according to an embodiment of the present invention;

[0046] Figure 5 This is an exploded view of the cutting tool assembly according to an embodiment of the present invention;

[0047] Figure 6This is a vertical sectional view of the tool assembly according to an embodiment of the present invention;

[0048] Figure 7 This is a three-dimensional structural diagram of the connector according to an embodiment of the present invention;

[0049] Figure 8 This is a three-dimensional structural diagram of the connector from another angle according to an embodiment of the present invention;

[0050] Figure 9 This is a rear view of the connector according to an embodiment of the present invention;

[0051] Figure 10 This is an exploded view of the upper cutter head assembly according to an embodiment of the present invention;

[0052] Figure 11 This is an exploded view of the lower cutter head assembly according to an embodiment of the present invention;

[0053] Figure 12 This is a three-dimensional structural diagram of the tool assembly according to another embodiment of the present invention, showing a connecting bracket;

[0054] Figure 13 This is a three-dimensional structural diagram of a shearing machine according to an embodiment of the present invention;

[0055] Figure 14 This is a three-dimensional structural diagram of the shearing machine according to another embodiment of the present invention;

[0056] Figure 15 This is a rear view of the shearing machine according to an embodiment of the present invention;

[0057] Figure 16 This is a three-dimensional structural diagram of a partial area of ​​the shearing machine according to an embodiment of the present invention;

[0058] Figure 17 This is a vertical sectional perspective view of a shearing machine according to an embodiment of the present invention, showing a cut along the front-to-back direction. Detailed Implementation

[0059] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0060] The specification and claims of this invention use terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," to describe various exemplary structural parts and elements of the invention. However, these terms are used herein merely for ease of explanation and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this invention can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0061] Figures 1-17 A preferred embodiment of the adjustable-width shearing machine and its control method of the present invention is shown. The shearing machine can be used for continuous longitudinal shearing of metal sheets such as aluminum plates and strips, such as finishing, edge trimming, and slitting.

[0062] like Figures 13 to 17 As shown, the shearing machine in this embodiment mainly includes a frame 5, a drive shaft assembly, multiple disc blade groups a, a traverse conveying mechanism, and a controller (not shown in the figure). The frame 5 forms the support frame of the equipment, the drive shaft assembly provides the shearing power to the disc blade groups a, and the multiple disc blade groups a perform the shearing operation. The traverse conveying mechanism is used to adjust the axial position of each disc blade group a to achieve different shearing widths.

[0063] In this embodiment, the frame 5 mainly includes two upright plates 51 arranged in parallel and opposite directions. The two upright plates 51 are firmly connected by a connecting beam at the bottom (which can be an integral design) and a crossbeam 52 at the top, forming a stable frame structure. The gap between the two upright plates 51 forms a rectangular mounting chamber, which can be used to accommodate the transverse conveyor described later, so that the overall layout of the shearing machine is more compact and reasonable. At the top edge of each of the two upright plates 51, a first slide rail 81 extending laterally along the equipment (i.e., parallel to the width direction of the plate to be sheared, which is also the axial direction of the drive shaft) is installed. In addition, on the outer side walls of the two upright plates 51 that are opposite to each other, near the top, a third slide rail 83 extending laterally is installed. At the bottom of the upper crossbeam 52, multiple fourth slide rails 84 extending laterally are provided.

[0064] The drive shaft assembly includes a first drive shaft 61 and a second drive shaft 62 arranged horizontally at intervals. The first drive shaft 61 is located above, and the second drive shaft 62 is located below, with their axes parallel. The two drive shafts are rotatably supported on the frame 5 via bearing seats. A first drive mechanism 60 is used to drive the drive shafts to rotate. In this embodiment, a servo motor can be used as the power source, synchronously driving the first drive shaft 61 and the second drive shaft 62 to rotate in opposite directions via a gearbox and transmission gears. Figure 16 As shown, gears 601 are coaxially mounted on both the end of the first drive shaft 61 and the end of the second drive shaft 62, and the two gears 601 mesh with each other. Of course, in other embodiments, two servo motors can be used to drive them separately and synchronized by a controller.

[0065] The structural design of the disc blade assembly a is a key inventive aspect of this invention, wherein each disc blade assembly a is an independently movable shearing unit. For example... Figures 1 to 6As shown, a disc cutter assembly a in this embodiment mainly consists of four parts: an upper cutter head assembly 1, a lower cutter head assembly 2, a connecting seat 3, and a connecting bracket 4.

[0066] The specific structure of the upper cutter head assembly 1 is as follows: Figure 5 , Figure 6 and Figure 10 As shown. The upper cutter head assembly 1 includes an upper cutter holder 11 and a first cutter head 12. The upper cutter holder 11 is generally a vertically arranged plate structure, and a first mounting hole is formed in the middle of the upper cutter holder 11 along the axial direction (i.e., parallel to the drive shaft). The first cutter head 12 includes a first disc body 121 and a first cutting part 122 (i.e., a disc-shaped cutting edge) that is fixedly connected to or integrally formed on the periphery of the first disc body 121. The first cutting part 122 is usually made of a ring of tungsten steel and welded to the first disc body 121. A first cutter head shaft 112 extending along the axial direction is fixedly connected to the middle of the first disc body 121. The first cutter head shaft 112 can be rotatably fitted in the first mounting hole of the upper cutter holder 11 through a crossed roller bearing (i.e., a first bearing 14), so that the first cutter head 12 can rotate freely relative to the upper cutter holder 11. The first cutter head shaft 112 has a through first mounting hole 1120 along its axial direction inside. The size of the first mounting hole 1120 is configured to allow a drive shaft to pass through from the outside, and it is keyed to the drive shaft to transmit power to the first cutter head 12. On the first disc body 121, a first rubber ring 13 is also fitted near the first cutting section 122. The rubber ring is fixed by interference fit or other means.

[0067] Similarly, the specific structure of the lower cutter head assembly 2 is as follows: Figure 5 , Figure 6 and Figure 11 As shown. The lower cutter head assembly 2 is located directly below the upper cutter head assembly 1, and includes a lower cutter holder 21 and a second cutter head 22. The lower cutter holder 21 is also generally a vertically arranged plate structure, and a second mounting hole is provided axially in the middle of the lower cutter holder 21. The second cutter head 22 includes a second disc body 221 and a second cutting part 222 that is fixedly connected to or integrally formed on the periphery of the second disc body 221. The second cutting part 222 is also made of tungsten steel and welded to the second disc body 221. A second cutter head shaft 212 extending axially is fixed in the middle of the second disc body 221. The second cutter head shaft 212 is rotatably fitted in the second mounting hole of the lower cutter holder 21 by a crossed roller bearing (i.e., a second bearing 24). A through second mounting hole 2120 is provided axially inside the second cutter head shaft 212 for the drive shaft below to pass through (also by key engagement). A second rubber ring 23 is fitted on the second disc body 221 near the second cutting part 222.

[0068] Both the first rubber ring 13 and the second rubber ring 23 mentioned above are made of wear-resistant materials.

[0069] When the upper and lower cutter head assemblies 2 are assembled together, the first cutting part 122 on the first cutter head 12 and the second cutting part 222 on the second cutter head 22 are vertically offset by a small distance, forming a shearing pair. Simultaneously, the first rubber ring 13 is vertically opposite to the second cutting part 222, and the second rubber ring 23 is vertically opposite to the first cutting part 122. During shearing of the sheet metal, the offset cutting parts complete the cutting action, while the opposing rubber rings are responsible for pressing the sheet metal together, ensuring cut quality and utilizing friction to assist in feeding.

[0070] The connecting seat 3 is used to connect the upper and lower cutter head assemblies 2, fixing them together as a whole. For example... Figure 2 , Figure 3 , Figures 7 to 9 As shown, the connecting seat 3 is located on the discharge side of the entire tool assembly. The position where the bottom edge of the first cutter head 12 and the top edge of the second cutter head 22 shear each other is defined as the shearing point. The direction of the material coming into the plate is the front side (material coming side), and the direction in which the plate leaves after shearing is the rear side (material discharge side). The connecting seat 3 is fixedly installed on the rear end face of the upper and lower cutter heads 21 facing the discharge side.

[0071] The connecting seat 3 is a one-piece molded (or it can be fixed together by fasteners) composite structure with two guide channels arranged adjacent to each other in the horizontal direction (i.e., left-right direction), namely the first discharge channel 301 and the second discharge channel 302. The inlet of the first discharge channel 301 is directly opposite to and close to the position after shearing at the bottom edge of the first cutter head 12, and is used to receive and guide the sheet material separated from the side of the first cutter head 12. The inlet of the second discharge channel 302 is directly opposite to and close to the position after shearing at the top edge of the second cutter head 22, and is used to receive and guide the sheet material separated from the side of the second cutter head 22.

[0072] More specifically, the opening direction of the first discharge trough 301 is opposite to the opening direction of the second discharge trough 302, and the roots of the two discharge troughs partially overlap in the vertical direction, forming a compact, intersecting layout. That is, as... Figure 4 As shown, the opening of the first discharge chute 301 on the left faces left, and the opening of the second discharge chute 302 on the right faces right. The first discharge chute 301 generally slopes downwards from the inlet (at an angle of approximately 5-8 degrees). The second discharge chute 302 generally slopes upwards from the inlet (also at an angle of approximately 5-8 degrees).

[0073] After shearing, the upper and lower sheet materials (especially thin, elastic metal sheets) are prone to colliding, tangling, or piling up in confined spaces, leading to poor discharge, secondary damage to the cut surfaces, or even equipment jamming. In this embodiment, the connecting seat 3, in addition to fixing the upper and lower cutter heads 21, is designed with two independent discharge channels with opposite opening directions and staggered arrangement (one above the other, one to the left and one to the right). Specifically, the first discharge channel 301 (corresponding to the lower sheet material sheared by the upper cutter head) discharges material to the left and downwards; and the second discharge channel 302 (corresponding to the upper sheet material sheared by the lower cutter head) discharges material to the right and upwards. This structural layout of the connecting seat 3 provides completely separate, non-intersecting flow paths for the upper and lower sheet materials, allowing them to be immediately guided into their corresponding channels after separation at the shearing point and rapidly discharged in a predetermined direction. This fundamentally eliminates the possibility of interference between the sheet materials, ensuring absolutely smooth and highly reliable discharge during continuous shearing.

[0074] The connecting seat 3 includes a first connecting block 31 located above the first discharge trough 301 and a second connecting block 32 located below the second discharge trough 302. The first connecting block 31 is fixedly connected to the bottom of the upper cutter holder 11 by bolts or other fasteners; the second connecting block 32 is fixedly connected to the top of the lower cutter holder 21 by bolts or other fasteners. To enhance the guidance and constraint of the material edge and prevent it from coming out of the shallower discharge trough, the bottom of the first connecting block 31 extends to the left to form a first extension wall 311, the wall surface of which smoothly contacts the top side wall of the first discharge trough 301, together forming a complete guide surface. Similarly, the top of the second connecting block 32 extends to the right to form a second extension wall 321, the side wall surface of which smoothly contacts the bottom side wall of the second discharge trough 302.

[0075] The two discharge troughs mentioned above partially overlap vertically, forming a "cross-nested" layout. This allows the connecting seat 3 to minimize its axial (width direction) and longitudinal dimensions while fulfilling its dual-channel guiding function. In equipment equipped with multiple disc cutter groups a for multi-slitting shearing, the significantly reduced axial dimension of each cutter group means that more cutter groups can be arranged on the same length of drive shaft, thereby achieving denser slitting (such as cutting narrower strips) or making the overall equipment structure more compact and saving installation space. Furthermore, the connecting seat 3 securely connects the rear ends of the upper and lower cutter seats 21 as a single unit. The design of the sidewalls of the discharge trough, especially the first extension wall 311 and the second extension wall 321, ensures that the edges of the material sheet are tightly fitted and constrained by the sidewalls of the discharge trough during shearing and the initial stage of discharge, thus suppressing vibration, reducing minor vibrations of the cutter shaft and support bearings, and ensuring the stability of the shearing process. On the other hand, it can also provide immediate and smooth support and guidance for the newly formed cut edges of the material, preventing them from curling or warping due to stress release, effectively controlling burr generation, and directly improving the cut quality.

[0076] To ensure accurate positioning and a stable connection between the connecting seat 3 and the tool holder, a first limiting step 312 (e.g., a boss or groove) is machined on the top of the first connecting block 31, and a first mating step 111 with a complementary shape is machined on the bottom of the upper tool holder 11. A second limiting step 322 is machined on the bottom of the second connecting block 32, and a second mating step 211 with a matching shape is machined on the top of the lower tool holder 21. Through the engagement of the steps, rapid positioning can be achieved and the shearing force and vibration generated during the shearing process can be resisted.

[0077] In a preferred embodiment, the first discharge groove 301 and the first connecting block 31, and the second discharge groove 302 and the second connecting block 32 of the connecting seat 3 are arranged symmetrically around the center of the connecting seat 3. This symmetrical design ensures that the connecting seat 3 is subjected to balanced forces and provides flexibility in the installation direction. It is not necessary to strictly distinguish between the upper and lower parts of the connecting seat 3; both can be connected to the corresponding upper cutter holder 11 or lower cutter holder 21. Correspondingly, the upper cutter disc assembly 1 and the lower cutter disc assembly 2 are also arranged symmetrically, meaning that the upper cutter disc assembly 1 and the lower cutter disc assembly 2 are interchangeable in terms of component selection.

[0078] Specifically, taking the first cutter head 12 as an example (the second cutter head 22 has a similar structure) its structure will be described below. The first disc body 121 is fitted onto the first cutter head shaft 112 through its central shaft hole. On the inner circumferential wall of the shaft hole, two first locking parts 1211 capable of undergoing slight elastic deformation in the radial direction are formed by wire cutting or other methods. A screw hole is provided in the radial direction of the first disc body 121, and the locking bolt 41 is screwed into the screw hole from the outside of the first disc body 121 until its end connects to the first locking part 1211. When the locking bolt 41 is tightened, the bolt pulls the first locking part 1211 inward, causing it to contract radially inward, thereby clamping the first cutter head shaft 112 and achieving a tight connection between the first cutter head 12 and the first cutter head shaft 112. During disassembly, the bolt is loosened, and the first locking part 1211 recovers elastically, thus releasing the connection.

[0079] The assembly and operation process of the tool assembly in this embodiment is as follows: First, the first tool disc 12 is installed into the upper tool holder 11 via the first bearing 14, and the second tool disc 22 is installed into the lower tool holder 21 via the second bearing 24. Then, the rear ends of the upper tool holder 11 and the lower tool holder 21 are connected into a whole via the connecting seat 3. At this time, the axial relative position of the first tool disc 12 and the second tool disc 22 is fixed by the connecting seat 3 and the step, and the axial clearance is determined during assembly. Next, the entire tool assembly unit is installed onto the frame 5: the first mounting hole 1120 of the first tool disc shaft 112 is fitted into the upper drive shaft, and the second mounting hole 2120 of the second tool disc shaft 212 is fitted into the lower drive shaft, both of which can slide along the drive shaft. Finally, the connecting bracket 4 is fixed to the bottom of the lower tool holder 21 and connected to the frame 5 via the guide rail assembly, so that the entire unit can be moved and adjusted axially on the frame 5.

[0080] like Figure 1 , Figure 12 , Figure 16 As shown, the connecting bracket 4 is an inverted U-shape, mounted on top of the two upright plates 51 of the frame 5. The connecting bracket 4 includes a horizontal connecting plate (i.e., a horizontal extension arm 401) and two support arms 402 extending downwards from the front and rear ends of the horizontal connecting plate. At the bottom of the horizontal connecting plate, two front-to-back first sliders 43 are installed. These two first sliders 43 respectively engage with two first slide rails 81 on the top of the two upright plates 51 of the frame 5, allowing the entire disc cutter assembly a to slide smoothly laterally. Furthermore, on the inner side (opposite side) of each of the two support arms 402, a guide rail clamp 42 is installed. These two guide rail clamps 42 respectively engage with the third slide rails 83 on the outer side of the upright plates 51 of the frame 5. The guide rail clamps 42 can be released when air (or oil) is supplied, allowing the cutter assembly to move; when air (or oil) is cut off, they clamp the third slide rail 83, firmly locking the cutter assembly onto the frame 5. Therefore, the guide rail clamp 42 in this embodiment constitutes the "locking device" of this application. The bottom of the transverse connecting plate of the connecting bracket 4 is also provided with two vertical mating holes 400 arranged in the front-back direction.

[0081] To further enhance the rigidity of the blade assembly during shearing, a second slider 63 is connected to the top of the upper blade holder 11. This second slider 63 slides in conjunction with the fourth slide rail 84 at the bottom of the crossbeam 52 of the frame 5, providing auxiliary support and guidance for the top of the disc blade assembly a, effectively suppressing vibrations or swaying that may occur during shearing.

[0082] In this embodiment, the transverse transport mechanism is installed in the mounting cavity at the lower part of the frame 5, such as... Figure 13 , Figure 14 , Figure 17As shown. The transverse conveying mechanism includes a second drive motor 71, a transmission screw 72, a screw nut slide 73, a telescopic rod assembly, and a sensor 76. The second drive motor 71 is typically a servo motor, which can be connected to the transmission screw 72 via a transmission belt assembly or a sprocket assembly to provide power. The transmission screw 72 is mounted horizontally in the transverse direction and is driven to rotate by the second drive motor 71. The screw nut slide 73 and the transmission screw 72 form a transmission engagement through a ball screw pair. The bottom of the screw nut slide 73 engages with a second slide rail 82 mounted on the bottom of the frame 5 via a slider, ensuring that it can only move in a straight line in the transverse direction. The telescopic rod 75 assembly is fixedly mounted on the screw nut slide 73, specifically including a telescopic drive element 74 (such as a cylinder or electric push rod, not shown in the figure) and a vertically telescopic rod 75 driven by it. The number and position of the telescopic rods 75 correspond to the two mating holes 400 at the bottom of the connecting bracket 4.

[0083] A sensor 76, such as a proximity switch or photoelectric sensor 76, is also installed on the nut slide 73 to identify whether the nut slide 73 has moved accurately to the direct under a certain disc cutter group a to be adjusted.

[0084] The shearing machine in this embodiment also includes a sheet conveying device (not shown in the accompanying drawings), used to output the sheet from front to back to the location of the cutter assembly. The sheet conveying device can employ existing technology, which will not be described in detail here.

[0085] In this embodiment, the controller (such as a PLC) is electrically connected to the first drive mechanism 60, the second drive motor 71, the cylinder solenoid valve of the telescopic rod assembly, the control valves of each guide rail clamp 42, and the sensor 76. Based on the structure of the shearing machine described above, the width adjustment control method of the shearing machine of the present invention includes the following steps:

[0086] Step S1: Start the width adjustment program. The controller controls the transverse transport mechanism to move so that the nut slide 73 and its telescopic rod assembly are positioned below the disc cutter group a to be adjusted.

[0087] Step S2: Sensor 76 recognizes this, and the controller controls the telescopic rod 75 of the telescopic rod assembly to extend and insert into the mating hole 400 of the connecting bracket 4 of the disc cutter group a;

[0088] Step S3: Control the locking device corresponding to the disc cutter group a to unlock;

[0089] Step S4: The controller controls the transmission screw 72 of the transverse conveying mechanism to rotate, driving the screw nut slide 73 and the disc cutter group a mounted on the screw nut slide 73 to move axially to the set position;

[0090] Step S5: The controller controls the locking device corresponding to the disc cutter group a to lock, fixing the disc cutter group a to the frame 5;

[0091] Step S6: The controller controls the telescopic rod 75 to retract and disengage from the mating hole 400 of the connecting bracket 4;

[0092] Step S7: Repeat steps S1 to S6, and adjust the position of the remaining disc cutter groups a in sequence according to the arrangement order of the previous disc cutter group a in the axial direction.

[0093] More specifically, the operator can input the target width parameter through the human-machine interface and then start the width adjustment program. The controller first controls the second drive motor 71 of the transverse conveying mechanism to work, driving the transmission screw 72 to rotate, causing the screw nut slide 73 to move laterally until the sensor 76 on it detects that it has reached directly below the connecting bracket 4 of the first disc cutter group a to be adjusted, and sends a signal to the controller. The controller then stops the second drive motor 71 and controls the cylinder of the telescopic rod assembly to actuate, causing the two telescopic rods 75 to extend upwards and precisely insert into the two mating holes 400 at the bottom of the connecting bracket 4, completing the mechanical docking.

[0094] After docking is completed, the controller controls the two guide rail clamps 42 (locking devices) corresponding to the disc cutter group a to release (unlock). Then, the controller restarts the second drive motor 71, driving the transmission screw 72 to rotate. Since the telescopic rod 75 has been inserted into the connecting bracket 4, the movement of the screw nut slide 73 will drive the entire disc cutter group a to slide laterally along the first slide rail 81.

[0095] Based on the encoder feedback from the second drive motor 71, the controller can control the disc cutter group a to move to the preset target position. Upon arrival, the controller can perform a position verification (e.g., using an additional absolute encoder or laser rangefinder). If a minor error is detected, the controller will control the traverse conveying mechanism to perform a minor compensation movement. After confirming the position is accurate, the controller will energize or press the guide rail clamp 42 of the disc cutter group a to grip the third slide rail 83, thus securely locking the disc cutter group a onto the frame 5.

[0096] After locking, the controller retracts the telescopic rod 75, disengaging it from the mating hole 400 of the connecting bracket 4. Then, the transverse transport mechanism moves to the next disc cutter group a that needs adjustment, and repeats the above steps (S1 to S6) until all disc cutter groups a that need adjustment have moved and locked in the new set position.

[0097] After all disc cutter groups a have been adjusted, the transverse transport mechanism returns to its initial position (such as the outermost position), the controller issues a ready signal, and the shearing machine can then perform shearing operations according to the new width settings.

[0098] During normal shearing, the sheet material is fed in from the front of the equipment (from the incoming side). The first drive mechanism 60 drives the upper and lower transmission shafts to rotate synchronously in opposite directions, causing the first cutter head 12 and the second cutter head 22 of each disc cutter group a to rotate in opposite directions. The sheet material is cut off when it passes through the staggered cutting section of the upper and lower cutter heads. The upper and lower material edges generated by shearing are guided by the first discharge groove 301 and the second discharge groove 302 on the connecting seat 3, respectively, and are smoothly discharged along the guide direction of the corresponding discharge groove, avoiding interference during the discharge process. When it is necessary to change the slitting width, the above-mentioned automated control process is executed to quickly adjust the spacing of each disc cutter group a.

[0099] In this embodiment, the shearing plate and the upper and lower cutter heads are fixed together as a whole via the connecting seat 3, and a single transverse transport mechanism serves all the cutter groups, eliminating the need for an independent drive and adjustment unit for each cutter head. This greatly simplifies the mechanical structure and significantly reduces manufacturing costs and space requirements. In particular, the upper and lower cutter heads always move synchronously as a whole, fundamentally avoiding the tediousness and errors of adjusting the alignment of the upper and lower cutter heads separately in traditional methods. Combined with servo motors, lead screws, and automated control, rapid and precise positioning of the cutter group can be achieved. Among them, the controller integrates the control of transverse transport, docking, and locking actions, realizing full automation of the width adjustment process. This simplifies operation, eliminates human error, and improves operational safety and equipment reliability. Secondly, the disc cutter group a is supported by the double-sided slide rails of the connecting bracket 4, the top auxiliary slide rail, and the sturdy guide rail clamp 42, which together ensure that the cutter group has extremely high rigidity and stability when subjected to shearing force, ensuring the quality of the cut. In addition, the modular design of the disc cutter group a makes the disassembly, replacement, or maintenance of individual cutter groups very convenient, without the need to adjust complex linkage mechanisms.

[0100] Based on the above embodiments, other embodiments can be obtained by replacing and improving the relevant technical features. For example, the first drive mechanism 60 can be driven by a single motor or by two motors driving the upper and lower shafts separately and keeping them synchronized. Furthermore, in addition to the pneumatic / hydraulic guide rail clamp 42, the locking device can also use mechanical screw plates, eccentric wheel locking mechanisms, etc., and achieve automatic locking through electric or pneumatic actuators. Also, the transmission part of the transverse conveying mechanism is not limited to ball screws; it can also use synchronous belts, rack and pinion gears, or linear motors. The drive of the telescopic rod assembly can also be a hydraulic cylinder or a servo electric cylinder. The sensor 76 used for positioning the tool group in conjunction with the transverse conveying mechanism can be a contact limit switch, a non-contact inductive or capacitive proximity switch, or a vision recognition system. Furthermore, the connecting seat 3 of the disc tool can be designed as a single-piece casting or welded from multiple plates. The inclination angle and cross-sectional shape of the discharge chute can be optimized according to the thickness and material of the material. For example, the control flow sequence of the shearing machine control scheme in this application can be adjusted within the logically permissible range. For instance, all the blade groups that need to be moved can be unlocked first, and then the transverse conveying mechanism can move and lock them sequentially. Fine-tuning steps can be selected for inclusion based on accuracy requirements. Furthermore, while multiple disc blade groups a are used as examples in the embodiments of this invention, the application of a single disc blade group a (for single edge cutting) also falls within the protection scope of this invention.

Claims

1. A shearing machine with adjustable cutting width, comprising: Rack (5); The drive shaft assembly includes a first drive shaft (61) and a second drive shaft (62) arranged at an interval between the upper and lower parts. Both the first drive shaft (61) and the second drive shaft (62) can be driven by the first drive mechanism (60) to rotate on the frame (5). The disc cutter assembly includes an upper cutter disc assembly (1) and a lower cutter disc assembly (2) arranged sequentially. The upper cutter disc assembly (1) is slidably mounted on the first drive shaft (61) along the axial direction. The upper cutter disc assembly (1) includes a first cutter disc (12) that can be driven to rotate by the first drive shaft (61). The lower cutter disc assembly (2) is slidably mounted on the second drive shaft (62) along the axial direction. The lower cutter disc assembly (2) includes a second cutter disc (22) that can be driven to rotate by the second drive shaft (62). The first cutting part (122) correspondingly provided on the first cutter disc (12) and the second cutting part (222) correspondingly provided on the second cutter disc are vertically misaligned to form a cutting fit. The invention is characterized in that: the upper cutter head assembly (1) and the lower cutter head assembly (2) are connected by a connecting seat (3) to form a disc cutter group (a). The disc cutter group (a) has at least two arranged sequentially in the axial direction. Each disc cutter group (a) is also slidably mounted on a first slide rail (81) correspondingly provided on the frame (5) through its respective connecting bracket (4). Each connecting bracket (4) is also provided with a locking device that can lock the connecting bracket (4) relative to the frame (5). The frame (5) is also provided with a transverse transport mechanism that can reciprocate in a direction parallel to the first transmission shaft (61). The transverse transport mechanism can drive each disc cutter group (a) to move in the axial direction to a set position.

2. The shearing machine with adjustable cutting width according to claim 1, characterized in that: The transverse conveying mechanism and the locking device are both electrically connected to the controller of the shearing machine. When the transverse conveying mechanism drives the corresponding disc blade group (a) to move to the set position, the controller controls the locking device to lock each disc blade group (a) relative to the frame (5).

3. The shearing machine with adjustable cutting width according to claim 2, characterized in that: The transverse conveying mechanism includes a second drive motor (71), a transmission screw (72) driven by the second drive motor (71) to rotate, a screw nut slide (73) that is driven and cooperates with the transmission screw (72), and a telescopic rod assembly provided on the screw nut slide (73). The frame (5) is also provided with a second slide rail (82). The screw nut slide (73) is slidably provided on the second slide rail (82). The telescopic rod assembly includes a telescopic drive member (74) and a telescopic rod (75) that is driven by the telescopic drive member (74) to perform telescopic actions. The connecting bracket (4) corresponding to the disc cutter group (a) is provided with a mating hole (400) for the telescopic rod (75) to be inserted. After the telescopic rod (75) is inserted into the mating hole (400) of the connecting bracket (4), with the rotation of the transmission screw (72), the screw nut slide (73) drives the corresponding disc cutter group (a) to move axially.

4. The shearing machine with adjustable cutting width according to claim 3, characterized in that: The transverse conveying mechanism is located below the disc cutter assembly. The mating hole (400) is opened at the bottom of the connecting bracket (4) and extends vertically. The telescopic rod (75) is located at the top of the nut slide (73) and can extend and retract vertically. The nut slide (73) is also provided with a sensor (76) for identifying whether the nut slide (73) has moved to the bottom of the corresponding disc cutter assembly. The sensor (76) is electrically connected to the controller of the shearing machine.

5. The shearing machine with adjustable cutting width according to claim 4, characterized in that: The mating holes (400) are arranged in two directions along the front and back, and the two mating holes (400) are located on the front and back sides of the vertical plane passing through the axis of the transmission screw (72).

6. The shearing machine with adjustable cutting width according to claim 4, characterized in that: The connecting bracket (4) is an inverted U-shape. The frame (5) includes two upright plates (51) arranged at intervals. The gap between the two upright plates (51) forms an installation chamber for accommodating the transverse transport mechanism. The top edges of the two upright plates (51) are provided with the first slide rail (81). The connecting bracket (4) is mounted on the top of the two upright plates (51) and slides on the two first slide rails (81).

7. The shearing machine with adjustable cutting width according to claim 6, characterized in that: The top of the two side walls of the two upright plates (51) that are opposite to each other are also provided with a third slide rail (83) extending in a direction parallel to the first drive shaft (61). The connecting bracket (4) includes two support arms (402) that are opposite to each other. Each support arm (402) is connected to the corresponding third slide rail (83) through a guide rail clamp (42). The guide rail clamp (42) constitutes the locking device.

8. The shearing machine with adjustable cutting width according to claim 6, characterized in that: The frame (5) also includes a crossbeam (52) located above the mounting chamber. The crossbeam (52) is provided with a fourth slide rail (84) extending in a direction parallel to the first drive shaft (61). The top of each disc cutter group (a) is also slidably connected to the fourth slide rail (84).

9. The shearing machine with adjustable cutting width according to any one of claims 1 to 8, characterized in that: The upper cutter head assembly (1) further includes an upper cutter holder (11), the first cutter head (12) is rotatably disposed on the upper cutter holder (11), the lower cutter head assembly (2) includes a lower cutter holder (21), the second cutter head (22) is rotatably disposed on the lower cutter holder (21), and the axis of the second cutter head (22) is parallel to the axis of the first cutter head (12); The connecting seat (3) is connected between the upper cutter holder (11) and the lower cutter holder (21). The connecting seat (3) has a first discharge groove (301) and a second discharge groove (302) arranged adjacent to each other in the front-back direction. The inlet of the first discharge groove (301) is opposite to the bottom edge of the first cutter disc (12), and the inlet of the second discharge groove (302) is opposite to the top edge of the second cutter disc (22).

10. A control method for a shearing machine, wherein the shearing machine is an adjustable shearing width shearing machine according to claim 4, characterized in that... Includes the following steps: Step S1: Start the width adjustment program. The controller controls the second drive motor (71) in the transverse conveying mechanism to work, so that the transmission screw (72) rotates and drives the screw nut slide (73) and its telescopic rod assembly to move to below the disc cutter group (a) to be adjusted. Step S2: The controller controls the drive unit (74) in the telescopic rod assembly to work according to the identification signal of the position by the sensor (76) so that the telescopic rod (75) extends and is inserted into the mating hole (400) of the connecting bracket (4) of the disc cutter group (a); Step S3: The controller controls the locking device corresponding to the disc cutter group (a) to unlock; Step S4: The controller controls the second drive motor (71) in the transverse conveying mechanism to work, so that the transmission screw (72) rotates and drives the screw nut slide (73) and the disc cutter group (a) provided on the screw nut slide (73) to move axially to the set position; Step S5: The controller controls the locking device corresponding to the disc cutter group (a) to lock, and fixes the disc cutter group (a) to the frame (5); Step S6: The controller controls the drive unit (74) to work so that the telescopic rod (75) retracts and disengages from the mating hole (400) of the connecting bracket (4); Step S7: Repeat steps S1 to S6 to complete the position adjustment of the remaining disc cutter groups (a) in sequence.

Images