Material roll discharge positioning device

Abstract

The application provides a material roll feeding positioning device, belonging to the technical field of material roll feeding equipment, comprising a base, two sliding seats, a rotating roller and a linkage mechanism; the two sliding seats are arranged on the base in a linear direction and are spaced apart, and each sliding seat is slidably connected with the base in the linear direction; each sliding seat is drivingly connected with a driving member; the rotating roller is used for mounting a material roll and is slidably connected with the two sliding seats in the linear direction, and the rotating roller is rotatably connected with the two sliding seats; the linkage mechanism is arranged on the base and is drivingly connected with the two driving members to enable the two driving members to act synchronously or independently. The material roll feeding positioning device provided by the application has a double-mode design of independent clamping and synchronous centering, and has the advantages of material roll positioning precision, specification adaptability and operation convenience, and can be widely applied to automatic production lines, such as printing, packaging and film processing, which require high-precision feeding, and effectively improves product quality and production efficiency.

Description

Technical Field

[0001] This application belongs to the technical field of material roll unloading equipment, and more specifically, relates to a material roll unloading positioning device. Background Technology

[0002] In industries such as textiles, printing, and packaging, flexible raw materials such as fabrics, films, and paper are typically stored and transported in rolls. When these raw materials require continuous processing (such as cutting, dyeing, and laminating), the rolls must be unrolled and conveyed to subsequent processing steps using unloading equipment. During this process, the accuracy of the unloading position directly affects the processing quality. If the central axis of the roll deviates from the feed centerline of the subsequent equipment, problems such as uneven edges, uneven tension, and even wrinkles can easily occur during the conveying process.

[0003] Currently, existing material roll unloading equipment typically includes three core components: a base, a rotating roller, and a clamping mechanism. The base supports the overall structure and is fixed to the ground or production line. The rotating roller is a cylindrical component whose diameter matches the center hole of the material roll. During use, it is inserted into the center of the material roll to support it and allow it to rotate around its axis to unload the material. The clamping mechanism is usually located at both ends of the rotating roller or on both sides of the base. It uses mechanical clamping to fix the end face or flange of the material roll, preventing the material roll from shifting due to axial force or inertia during the unloading process.

[0004] The inventors discovered that, because material rolls are typically quite heavy, when adjusting the position of the roll on the base for centering, operators must first loosen the clamping mechanism, then use external lifting equipment such as overhead cranes or forklifts to move the roll and rollers together to the target position, and then restart the clamping mechanism to fix the roll. This process is not only cumbersome, time-consuming, and labor-intensive, but also, during re-clamping, uneven force or mechanical clearance in the clamping mechanism may cause slight displacement of the roll, disrupting the already adjusted centering position and resulting in centering errors. Utility Model Content

[0005] The purpose of this application is to provide a material roll unloading and positioning device to solve the technical problems in the prior art where material roll alignment adjustment requires the use of external hoisting equipment, the operation is cumbersome, and re-clamping easily causes alignment errors.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: A material roll unloading and positioning device is provided, comprising: A base for mounting on a horizontal surface; Two sliding seats are spaced apart on the base along a straight line, and each sliding seat is slidably connected to the base along the straight line; each sliding seat is driven by a driving member, which is used to drive the corresponding sliding seat to move along the straight line. A rotating roller, on which a material roll is mounted, is slidably connected to two sliding seats along the straight direction, and the rotating roller is rotatably connected to each of the two sliding seats; and A linkage mechanism is provided on the base and is connected to the two drive components in a transmission manner so that the two drive components can move synchronously or independently. Specifically, when the linkage mechanism causes the two driving components to operate independently, the two driving components are adapted to drive the two sliding seats to clamp the material roll; when the linkage mechanism causes the two driving components to operate synchronously, any one of the driving components is adapted to simultaneously drive the two sliding seats to move in the same direction, so that the material roll can be centered.

[0007] In one possible implementation, the driving component includes: A screw, rotatably connected to the base, wherein the axial direction of the screw is parallel to the straight line direction; and A threaded seat is disposed on the corresponding sliding seat and is threadedly connected to the screw. By rotating the screw, the threaded seat can drive the corresponding sliding seat to move along the linear direction.

[0008] In one possible implementation, the two screws in the two driving members are coaxially arranged, and the two screws are spaced apart along the straight line direction; The linkage mechanism is located between the two screws and is connected to the two screws in a driving manner so that the two screws can rotate synchronously or independently.

[0009] In one possible implementation, the linkage mechanism includes: A linkage sleeve is fitted onto one of the screws and is slidably connected to the screw along the linear direction; a connecting member is also provided between the linkage sleeve and the screw to allow the linkage sleeve and the screw to rotate synchronously; the linkage sleeve has multiple insertion grooves on the side facing the other screw; and A switching component is mounted on the base and is connected to the linkage sleeve via a transmission to drive the linkage sleeve to move toward or away from the other screw. In one of the screws, a plurality of teeth are spaced apart on the outer periphery, and the linkage sleeve has a plurality of slots on the side facing the other screw that correspond one-to-one with the plurality of teeth; when the switching member drives the linkage sleeve to move toward the other screw, each tooth is adapted to be inserted into the corresponding slot to synchronize the rotation of the two screws.

[0010] In one possible implementation, the switching component includes: Two movable seats are slidably connected to the base along the straight line, and the two movable seats are respectively located on both sides of the linkage sleeve; and A transmission plate is fixedly sleeved onto the linkage sleeve, and both ends of the transmission plate are respectively fixedly connected to the two movable seats; Specifically, by pushing or pulling the transmission plate, the linkage sleeve can be moved along the linear direction.

[0011] In one possible implementation, the transmission plate is provided with a pull rod that extends along the straight line and is slidably connected to the base.

[0012] In one possible implementation, the upper side of the sliding seat has a support groove for the roller to be inserted into, the support groove being used to rotatably support the roller.

[0013] In one possible implementation, the inner wall of the support groove has a plurality of first rollers spaced apart, the plurality of first rollers being used to roll and support the rotating roller.

[0014] In one possible implementation, two top plates are slidably mounted on the roller, with both top plates located between the two sliding seats; the adjacent sides of the two top plates are used to abut against the material roll.

[0015] In one possible implementation, the sliding seat is rotatably connected to a plurality of second rollers on the side facing the top plate; as the sliding seat moves toward the roll, the second rollers are adapted to roll against the top plate.

[0016] In this embodiment, the material roll to be unloaded is mounted on a rotating roller. The rotating roller is slidably connected to two sliding seats along a straight line. The position of the rotating roller can be adjusted along the sliding direction of the sliding seats, and it is rotatably connected to the sliding seats, allowing the rotating roller to rotate around its own axis when the material roll is unloaded.

[0017] First, the linkage mechanism switches to independent operation mode, where the two drive components independently control their corresponding sliding seats. The two drive components drive their respective sliding seats to move towards each other in a straight line (closer to the material roll), directly or indirectly clamping both ends of the material roll (such as the flange or end face of the material roll). Because the drive components operate independently, the distance between the two sliding seats can be flexibly adjusted according to the actual diameter / width of the material roll, ensuring the material roll is stably clamped and preventing axial movement during unloading.

[0018] Then, the linkage mechanism switches to synchronous operation mode, and the two drive components are mechanically linked through the linkage mechanism, allowing either drive component to simultaneously drive the two sliding seats. The drive component drives the two sliding seats to move in the same direction along a straight line (such as simultaneously to the left or right). At this time, the rotating roller moves synchronously with the sliding seats. Because the rotating roller is slidably connected to the sliding seats, the clamping state is not affected during the movement; until the central axis of the material roll is aligned with the preset feeding reference line (such as the feeding center line of the production line), the centering and positioning are completed.

[0019] After clamping and centering are completed, during the feeding process, the rotational connection between the roller and the sliding seat ensures that the coil can rotate smoothly around the axis, achieving continuous feeding; the clamping force of the sliding seat maintains the axial position of the coil and avoids the coil from shifting due to fluctuations in feeding tension; if the centering position needs to be finely adjusted during feeding, it can be readjusted through the synchronous action mode of the linkage mechanism without the need for re-clamping, thus improving operating efficiency.

[0020] Compared with the prior art, the roll feeding and positioning device provided in this application has a dual-mode design of independent clamping and synchronous centering, which takes into account the positioning accuracy, specification adaptability and operation convenience of the roll. It can be widely used in automated production lines that require high-precision feeding, such as printing, packaging and film processing, and effectively improve product quality and production efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A three-dimensional structural diagram of the material roll unloading and positioning device provided in the embodiments of this application. Figure 1 ; Figure 2 A three-dimensional structural diagram of the material roll unloading and positioning device provided in the embodiments of this application. Figure 2 ; Figure 3 This is a three-dimensional cross-sectional structural diagram of the material roll unloading and positioning device provided in the embodiments of this application; Figure 4 for Figure 3 Enlarged structural diagram of region A in the middle; Figure 5 This is a bottom view of the material roll unloading and positioning device provided in the embodiments of this application; Figure 6 This is a side view of the material roll unloading and positioning device provided in an embodiment of this application. Figure 7 This is a three-dimensional structural diagram of the linkage sleeve used in the embodiments of this application; The following are the labeling elements in the figure: 1. Base; 2. Sliding seat; 21. Support groove; 22. First roller; 23. Second roller; 3. Rotary roller; 31. Top plate; 4. Drive component; 41. Screw; 411. Tooth; 42. Threaded seat; 5. Linkage mechanism; 51. Linkage sleeve; 511. Slot; 52. Switching component; 521. Moving seat; 522. Transmission plate; 523. Pull rod; 6. Material roll. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0027] Please refer to the following: Figures 1 to 7 The material roll unloading and positioning device provided in this application will now be described. The material roll unloading and positioning device includes a base 1, two sliding seats 2, a rotating roller 3, and a linkage mechanism 5.

[0028] The base 1 is made of welded metal profiles and is set on a horizontal plane or production line. The base 1 serves as the installation foundation for the equipment and is used to support the overall structure.

[0029] Two sliding seats 2 are spaced apart on the base 1 along a straight line, and each sliding seat 2 is slidably connected to the base 1 along a straight line; each sliding seat 2 is driven by a driving component 4, which is used to drive the corresponding sliding seat 2 to move along a straight line.

[0030] The rotating roller 3 is used to mount the material roll 6, and is slidably connected to the two sliding seats 2 along the straight direction. The rotating roller 3 is rotatably connected to the two sliding seats 2 respectively.

[0031] The linkage mechanism 5 is mounted on the base 1 and is connected to the two drive components 4 in a transmission manner so that the two drive components 4 can move synchronously or independently.

[0032] When the linkage mechanism 5 causes the two driving components 4 to move independently, the two driving components 4 are adapted to drive the two sliding seats 2 to clamp the material roll 6; when the linkage mechanism 5 causes the two driving components 4 to move synchronously, any one of the driving components 4 is adapted to simultaneously drive the two sliding seats 2 to move in the same direction so that the material roll 6 can be centered.

[0033] In this embodiment, the material roll 6 to be unloaded is mounted on the rotating roller 3. The rotating roller 3 is slidably connected to two sliding seats 2 along a straight line. The position of the rotating roller 3 can be adjusted along the sliding direction of the sliding seats 2, and it is rotatably connected to the sliding seats 2, allowing the rotating roller 3 to rotate around its own axis when the material roll 6 is unloaded.

[0034] First, the linkage mechanism 5 switches to independent operation mode, at which point the two drive components 4 independently control their corresponding sliding seats 2. The two drive components 4 drive their respective sliding seats 2 to move towards each other in a straight line (closer to the material roll 6), directly or indirectly clamping both ends of the material roll 6 (such as the flange or end face of the material roll 6) through the sliding seats 2. Because the drive components 4 operate independently, the distance between the two sliding seats 2 can be flexibly adjusted according to the actual diameter / width of the material roll 6, ensuring that the material roll 6 is stably clamped and preventing axial movement during the unloading process.

[0035] Then, the linkage mechanism 5 switches to synchronous operation mode, and the two drive components 4 achieve mechanical linkage through the linkage mechanism 5, so that either drive component 4 can drive the two sliding seats 2 simultaneously. The drive component 4 drives the two sliding seats 2 to move in the same direction along a straight line (such as simultaneously to the left or right). At this time, the rotating roller 3 moves synchronously with the sliding seats 2. Since the rotating roller 3 is slidably connected to the sliding seats 2, the clamping state is not affected during the movement; until the central axis of the material roll 6 is aligned with the preset feeding reference line (such as the feeding center line of the production line), the centering and positioning are completed.

[0036] After clamping and centering are completed, during the feeding process, the rotating connection between the roller 3 and the sliding seat 2 ensures that the material roll 6 can rotate smoothly around the axis, achieving continuous feeding; the clamping force of the sliding seat 2 maintains the axial position of the material roll 6 and avoids the material roll 6 from shifting due to fluctuations in feeding tension; if the centering position needs to be finely adjusted during feeding, it can be adjusted again through the synchronous action mode of the linkage mechanism 5 without re-clamping, thus improving operating efficiency.

[0037] Compared with the prior art, the material roll feeding and positioning device provided in this application has a dual-mode design of independent clamping and synchronous centering, which takes into account the positioning accuracy, specification adaptability and operation convenience of the material roll 6. It can be widely used in automated production lines that require high-precision feeding, such as printing, packaging and film processing, and effectively improve product quality and production efficiency.

[0038] In some embodiments, the driving component 4 described above may be as follows: Figures 1 to 6 The structure shown is described in the following document. Figures 1 to 6 The driving component 4 includes a screw 41 and a threaded seat 42.

[0039] The screw 41 is rotatably connected to the base 1, and the axial direction of the screw 41 is parallel to the straight line direction.

[0040] The threaded seat 42 is mounted on the corresponding sliding seat 2 and is threadedly connected to the screw 41.

[0041] By rotating the screw 41, the threaded seat 42 can drive the corresponding sliding seat 2 to move in a straight line.

[0042] When the screw 41 rotates, the threaded joint converts the rotational motion into the linear motion of the threaded seat 42, thereby achieving precise displacement control of the sliding seat 2. The screw 41 can be rotated manually or electrically, which drives the threaded seat 42 to move in a straight line through the threaded engagement; the threaded seat 42 is fixedly connected to the sliding seat 2, thereby causing the sliding seat 2 to move closer to or away from the coil 6.

[0043] A ball screw can be used to replace the ordinary screw 41, which reduces the coefficient of friction and improves transmission efficiency and positioning accuracy. The thread of the screw 41 can be a trapezoidal thread, which uses the thread helix angle to achieve self-locking and prevent the sliding seat 2 from loosening in the clamped state.

[0044] By adopting the above technical solutions, the screw 41 has smooth transmission and high displacement accuracy, meeting the requirements for high-precision centering; the threaded transmission has mechanical self-locking characteristics, ensuring stable clamping state and preventing the sliding seat 2 from retracting during the unloading process.

[0045] In some embodiments, the screw 41 described above may be as follows: Figures 3 to 5 The structure shown is described in the following document. Figures 3 to 5 The two screws 41 in the two driving components 4 are coaxially arranged and spaced apart along a straight line.

[0046] The linkage mechanism 5 is located between the two screws 41 and is connected to the two screws 41 in a transmission manner so that the two screws 41 can rotate synchronously or independently.

[0047] When the linkage mechanism 5 is disengaged, the two screws 41 rotate independently, driving the sliding seat 2 to move independently (clamping stage); when the linkage mechanism 5 is engaged, the two screws 41 rotate synchronously through mechanical connection, driving the sliding seat 2 to move in the same direction (centering stage).

[0048] The two screws 41 are arranged coaxially, and the linkage mechanism 5 realizes power transmission through mechanical coupling: when separated, the two screws 41 are driven independently, and the distance between the sliding seats 2 is adjustable; when engaged, the two screws 41 rotate synchronously, and the displacement of the sliding seats 2 is consistent.

[0049] A meshing gear set can be installed at the end of the screw 41 to achieve synchronous / independent switching through gear engagement and disengagement; the length of the screw 41 can be designed according to the maximum width of the material roll 6 to accommodate ultra-wide material rolls 6.

[0050] By adopting the above technical solutions, the coaxial design can reduce the lateral space occupied and make the structure compact; the mechanical hard connection ensures synchronization accuracy and avoids delays or signal interference in electronic synchronization.

[0051] In some embodiments, the aforementioned linkage mechanism 5 may adopt, for example... Figures 1 to 5 and Figure 7 The structure shown is described in the following document. Figures 1 to 5 and Figure 7 The linkage mechanism 5 includes a linkage sleeve 51 and a switching component 52.

[0052] The linkage sleeve 51 is fitted onto one of the screws 41 and is slidably connected to the screw 41 in a straight line. A connecting component is also provided between the linkage sleeve 51 and the screw 41 to enable the linkage sleeve 51 and the screw 41 to rotate synchronously. The connecting component can be a structure of a groove and a slider. The groove is provided on the screw 41, and the slider is provided inside the linkage sleeve 51. The slider is slidably connected to the groove to ensure that the linkage sleeve 51 and the screw 41 have only axial displacement freedom and avoid relative rotation with the screw 41.

[0053] The switching component 52 is mounted on the base 1 and is connected to the linkage sleeve 51 in a transmission manner, so as to drive the linkage sleeve 51 to move toward or away from another screw 41.

[0054] One of the screws 41 has a plurality of teeth 411 spaced apart on its outer periphery, and the linkage sleeve 51 has a plurality of slots 511 on the side facing the other screw 41, which correspond one-to-one with the teeth 411. When the switching component 52 drives the linkage sleeve 51 to move toward the other screw 41, each tooth 411 is adapted to be inserted into the corresponding slot 511 to synchronize the rotation of the two screws 41.

[0055] When it is necessary to switch to synchronous mode: push the linkage sleeve 51 to move to the other screw 41, insert the tooth 411 into the slot 511, and the two screws 41 rotate synchronously through the sleeve; when it is necessary to switch to independent mode: pull the linkage sleeve 51 to disengage, so that the tooth 411 separates from the slot 511, and the screw 41 resumes independent rotation.

[0056] Engagement principle: The inserter 411 engages with the slot 511, transmitting power from one screw 41 to the other, achieving synchronous rotation. Disengagement principle: The inserter 411 disengages from the slot 511, and the screws 41 rotate independently.

[0057] An electromagnetic push rod or servo motor can be added to the linkage sleeve 51 to achieve electric switching; alternatively, a positioning pin can be added to the linkage sleeve 51 to ensure that the screw 41 can only be rotated after the insertion teeth 411 and the slot 511 are fully engaged.

[0058] By adopting the above technical solution, the switching structure is simple and reliable, without electronic components, and adaptable to harsh working conditions such as dust and oil; the meshing transmission efficiency of the gear 411 and the slot 511 is high, and the synchronization error is negligible.

[0059] In some embodiments, the switching member 52 may be as follows: Figures 1 to 5 and Figure 7 The structure shown is described in the following document. Figures 1 to 5 and Figure 7 The switching component 52 includes a movable seat 521 and a transmission plate 522.

[0060] Both movable seats 521 are slidably connected to the base 1 along a straight line, and the two movable seats 521 are located on both sides of the linkage sleeve 51 respectively.

[0061] The transmission plate 522 is fixedly sleeved onto the linkage sleeve 51, and both ends of the transmission plate 522 are fixedly connected to the two movable seats 521 respectively.

[0062] The linkage sleeve 51 can be moved in a straight line by pushing and pulling the transmission plate 522. The moving seat 521 slides along the guide rail of the base 1 to ensure that the linkage sleeve 51 moves smoothly and the insert teeth 411 are accurately inserted into the slot 511.

[0063] The transmission plate 522 can be manually or mechanically pushed to drive the linkage sleeve 51 to move axially along the screw 41; the moving seat 521 slides along the guide rail of the base 1 to ensure that the linkage sleeve 51 moves smoothly and the insert teeth 411 are accurately inserted into the slot 511.

[0064] The transmission plate 522 is fixed to the linkage sleeve 51, and the moving seat 521 restricts the movement direction of the transmission plate 522 through the guide rail, so as to realize the linear displacement guidance of the linkage sleeve 51.

[0065] A lever mechanism or pneumatic cylinder can be added to the transmission plate 522 to reduce manual operation force; a limit switch can be added between the transmission plate 522 and the base 1 to detect the "engagement / disengagement" state of the linkage sleeve 51 and realize automated control.

[0066] By adopting the above technical solution, the guide rail of the movable seat 521 has high guiding accuracy, avoiding the misalignment of the linkage sleeve 51 that would cause the pick 411 to jam; the transmission plate 522 is subjected to uniform force, extending the service life of the linkage mechanism 5.

[0067] In some embodiments, the transmission plate 522 may be adopted as follows: Figures 1 to 6 The structure shown is described in the following document. Figures 1 to 6 The transmission plate 522 is provided with a pull rod 523 that extends in a straight line and is slidably connected to the base 1.

[0068] Manually pulling or pushing the lever 523 causes the linkage sleeve 51 to move axially via the transmission plate 522, completing the switching between synchronous and independent modes. The lever 523, as the force-applying component, extends the lever arm, reducing the force required for the switching operation, which conforms to ergonomic design.

[0069] The pull rod 523 can be designed to be folded for storage, reducing the space occupied when the equipment is not in use; the pull rod 523 can also be replaced with an electric push rod, which controls the movement of the linkage sleeve 51 through a button, achieving one-button switching.

[0070] By adopting the above technical solution, the pull rod 523 is easy to operate and saves effort; moreover, the length of the pull rod 523 can be customized to adapt to different operating space requirements.

[0071] In some embodiments, the slide block 2 may be adopted as follows: Figures 1 to 3 and Figure 6 The structure shown is described in the following document. Figures 1 to 3 and Figure 6 The upper side of the sliding seat 2 has a support groove 21 for the rotating roller 3 to be embedded in, and the support groove 21 is used to rotate and support the rotating roller 3.

[0072] The support groove 21 makes line contact with the roller 3 through its arc-shaped inner wall, providing radial support while allowing the roller 3 to rotate freely around its axis.

[0073] Replaceable bushings can be installed on the inner wall of the support groove 21 to accommodate rollers 3 of different diameters; the support groove 21 can also adopt a V-groove design to automatically center the rollers 3 and reduce installation deviation.

[0074] By adopting the above technical solution, the installation steps of the roller 3 are simplified, and no additional fasteners are required.

[0075] In some embodiments, the support groove 21 may be adopted as follows: Figure 6 The structure shown is described in the following document. Figure 6 The inner wall of the support groove 21 has a plurality of first rollers 22 spaced apart, which are used to roll the support roller 3.

[0076] The rotating roller 3 is placed in the support groove 21, and the first roller 22 rolls in contact with the outer circumference of the rotating roller 3. When discharging material, the rotating roller 3 drives the roller to rotate.

[0077] The sliding friction is converted into rolling friction, and the rotational resistance of the roller 3 is reduced by the first roller 22.

[0078] The roller can be integrated with ball bearings to further reduce the coefficient of friction; the roller surface is covered with rubber or polyurethane to protect the surface of the roller 3 from scratches.

[0079] In some embodiments, the roller 3 described above may be as follows: Figures 1 to 3 and Figure 6 The structure shown is described in the following document. Figures 1 to 3 and Figure 6 Two top plates 31 are slidably sleeved on the roller 3, and both top plates 31 are located between the two sliding seats 2; the adjacent sides of the two top plates 31 are used to abut against the material roll 6.

[0080] Two top plates 31 are slidably mounted on the rotating roller 3, located on both sides of the material roll 6; the sliding seat 2 pushes the top plates 31, and clamps them by contacting the end face of the material roll 6 with the top plates 31.

[0081] The top plate 31 acts as an intermediate buffer, increasing the contact area with the material roll 6 and preventing the sliding seat 2 from directly clamping and causing deformation of the edge of the material roll 6.

[0082] A spring can be installed between the top plate 31 and the rotating roller 3 to achieve flexible clamping and adapt to easily deformable material rolls 6. The top plate 31 is fixed to the rotating roller 3 by locking bolts, and the spacing can be pre-adjusted to adapt to material rolls 6 with a fixed width.

[0083] By adopting the above technical solution, the end face of the material roll can be protected to avoid indentations or wrinkles; at the same time, the clamping contact area is increased, and the clamping stability is improved.

[0084] In some embodiments, the slide block 2 may be adopted as follows: Figure 5 The structure shown is described in the following document. Figure 5The sliding seat 2 is rotatably connected to a plurality of second rollers 23 on the side facing the top plate 31; when the sliding seat 2 moves toward the material roll 6, the second rollers 23 are adapted to roll and abut against the top plate 31.

[0085] When the sliding seat 2 moves toward the material roll 6, the second roller 23 rolls into contact with the side of the top plate 31, pushing the top plate 31 to clamp the material roll 6. During unloading, the second roller 23 converts the sliding friction between the sliding seat 2 and the top plate 31 into rolling friction, reducing the resistance during the clamping process.

[0086] By adopting the above technical solution, the frictional resistance between the sliding seat 2 and the top plate 31 can be effectively reduced, and the driving energy consumption can be reduced; at the same time, the jamming between the top plate 31 and the sliding seat 2 can be avoided, ensuring a smooth clamping process.

[0087] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A material roll unloading and positioning device, characterized in that, include: A base for mounting on a horizontal surface; Two sliding seats are spaced apart on the base along a straight line, and each sliding seat is slidably connected to the base along the straight line; each sliding seat is driven by a driving member, which is used to drive the corresponding sliding seat to move along the straight line. A rotating roller, on which a material roll is mounted, is slidably connected to two sliding seats along the straight direction, and the rotating roller is rotatably connected to the two sliding seats respectively; as well as A linkage mechanism is provided on the base and is connected to the two drive components in a transmission manner so that the two drive components can move synchronously or independently. When the linkage mechanism causes the two driving components to operate independently, the two driving components are adapted to drive the two sliding seats to clamp the material roll; When the linkage mechanism causes the two driving components to operate synchronously, either driving component is adapted to simultaneously drive the two sliding seats to move in the same direction so that the material roll can be centered.

2. The material roll unloading and positioning device as described in claim 1, characterized in that, The driving component includes: A screw, rotatably connected to the base, wherein the axial direction of the screw is parallel to the straight line direction; and A threaded seat is disposed on the corresponding sliding seat and is threadedly connected to the screw. By rotating the screw, the threaded seat can drive the corresponding sliding seat to move along the linear direction.

3. The material roll unloading and positioning device as described in claim 2, characterized in that, The two screws in the two driving components are coaxially arranged, and the two screws are spaced apart along the straight line direction; The linkage mechanism is located between the two screws and is connected to the two screws in a driving manner so that the two screws can rotate synchronously or independently.

4. The material roll unloading and positioning device as described in claim 3, characterized in that, The linkage mechanism includes: A linkage sleeve is fitted onto one of the screws and is slidably connected to the screw along the linear direction; a connecting member is also provided between the linkage sleeve and the screw to allow the linkage sleeve and the screw to rotate synchronously; and A switching component is mounted on the base and is connected to the linkage sleeve via a transmission to drive the linkage sleeve to move toward or away from the other screw. In one of the screws, a plurality of teeth are spaced apart on the outer periphery, and the linkage sleeve has a plurality of slots on the side facing the other screw that correspond one-to-one with the plurality of teeth; when the switching member drives the linkage sleeve to move toward the other screw, each tooth is adapted to be inserted into the corresponding slot to synchronize the rotation of the two screws.

5. The material roll unloading and positioning device as described in claim 4, characterized in that, The switching component includes: Two movable seats are slidably connected to the base along the straight line, and the two movable seats are respectively located on both sides of the linkage sleeve; and A transmission plate is fixedly sleeved onto the linkage sleeve, and both ends of the transmission plate are respectively fixedly connected to the two movable seats; Specifically, by pushing or pulling the transmission plate, the linkage sleeve can be moved along the linear direction.

6. The material roll unloading and positioning device as described in claim 5, characterized in that, The transmission plate is provided with a pull rod that extends along the straight line and is slidably connected to the base.

7. The material roll unloading and positioning device as described in claim 1, characterized in that, The upper side of the sliding seat has a support groove for the rotating roller to be embedded in, and the support groove is used to rotatably support the rotating roller.

8. The material roll unloading and positioning device as described in claim 7, characterized in that, The inner wall of the support groove has a plurality of first rollers spaced apart, which are used to roll and support the rotating roller.

9. The material roll unloading and positioning device as described in claim 1, characterized in that, Two top plates are slidably sleeved on the roller, and both top plates are located between the two sliding seats; the adjacent sides of the two top plates are used to abut against the material roll.

10. The material roll unloading and positioning device as described in claim 9, characterized in that, The sliding seat is rotatably connected to a plurality of second rollers on the side facing the top plate; when the sliding seat moves toward the material roll, the second rollers are adapted to roll and abut against the top plate.

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