Active feeding machine of cutting bed

Abstract

The invention belongs to the technical field of cutting bed accessories, and relates to a cutting bed active feeding machine which comprises a rack, a cylinder impeller which is driven by a feeding cylinder and moves in the axial direction is arranged on one side of the rack, and a motor impeller which is driven by a feeding motor to rotate is arranged on the other side of the rack. The air cylinder impeller and the motor impeller are oppositely arranged, a core cylinder of a cloth roll is clamped through axial movement of the air cylinder impeller, the motor impeller drives the cloth roll to rotate synchronously so as to unwind and feed materials, and a lifting machine for lifting the cloth roll is arranged in the machine frame. According to the active feeding machine of the cutting bed, damage to cloth in the feeding link can be reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of cutting machine accessories and relates to an active feeder for a cutting machine. Background Art

[0002] The feeding mechanism of a cutting table typically utilizes two parallel, actively rotating rollers as its core drive components. The fabric roll is placed directly above these rollers, where it relies on gravity to maintain contact with the roller surfaces. As the rollers rotate in the same direction driven by a motor, the friction between the roller surfaces and the outer layer of the fabric roll becomes the primary driving force, driving the entire roll, thereby unwinding the fabric and conveying it forward to the cutting table's processing area. This mechanism is relatively simple, relying on passive friction to unwind and feed the fabric roll.

[0003] The main disadvantages of the above-mentioned feeding mechanism are due to its passive friction drive mode: first, the direct and forced friction contact between the roller and the surface material of the cloth roll will inevitably cause certain wear or surface damage to the fabric of the outer layer of the cloth roll, such as scratches and pilling, which has a significant impact on delicate, coated or sensitive fabrics; second, the cloth roll itself lacks independent rotation drive and relies entirely on the friction force of the roller to drive it, which requires sufficient pulling force to overcome the inertia of the cloth roll to start and maintain feeding. Therefore, it is not applicable to materials with low tensile strength, easy deformation or extremely fragile, and cannot withstand pulling force, which seriously limits its scope of application. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides an active feeder for a cutting table, which can reduce damage to fabrics caused during the feeding process.

[0005] In order to solve the above technical problems, the purpose of the present invention is achieved through the following technical solutions:

[0006] An active feeder for a cutting table comprises a frame, one side of the frame is provided with a cylinder impeller that moves axially and is driven by a feeding cylinder, and the other side of the frame is provided with a motor impeller that is driven to rotate by a feeding motor, the cylinder impeller and the motor impeller are arranged opposite to each other and clamp the core barrel of the cloth roll through the axial movement of the cylinder impeller, the motor impeller drives the cloth roll to rotate synchronously to unroll and feed, and an elevator for lifting the cloth roll is provided in the frame.

[0007] In the above-mentioned cutting table active feeder, the cylinder impeller is mounted on the piston rod of the feeding cylinder, the motor impeller is mounted on the motor shaft of the feeding motor, and the cylinder impeller, piston rod, motor impeller, motor shaft and cloth roll are coaxially arranged; the cylinder impeller and motor impeller can also be connected to the feeding cylinder and feeding motor through a conventional transmission mechanism.

[0008] In the above-mentioned cutting table active feeder, a conical convex ring and an unwinding guard ring are coaxially arranged on the end faces of the cylinder impeller and the motor impeller facing the cloth roll, respectively. The conical convex ring is located on the radial inner side, and its conical surface is adapted to the inner hole at the end of the cloth roll core tube. The unwinding guard ring is located on the radial outer side, forming an annular rib for constraining the axial displacement of the cloth roll.

[0009] In the above-mentioned cutting table active feeder, preferably, the cylinder impeller and the motor impeller have the same shape and size.

[0010] In the above-mentioned cutting table active feeder, a cylinder cover is provided on one side of the frame, and the feeding cylinder is arranged in the cylinder cover, and its piston rod extends inwardly out of the cylinder cover and is fitted with a cylinder impeller; a motor cover is provided on the other side of the frame, and the feeding motor is arranged in the motor cover, and its motor shaft extends inwardly out of the motor cover and is fitted with a motor impeller; further, the electrical components, control mechanisms and pipelines required for the feeding cylinder and feeding motor are also respectively arranged in the corresponding covers.

[0011] In the above-mentioned active feeder for a cutting table, a pair of cloth-passing rollers are provided on the front side of the frame. The cloth roll passes through the gaps of the cloth-passing rollers when feeding. The feeding motor controls the unwinding speed of the cloth roll so that it is consistent with the window-passing speed of the cutting table.

[0012] In the above-mentioned active feeder for a cutting table, a lifting platform driven by a lifting motor is provided on the top of the elevator, and a plurality of front rollers, a plurality of lower rollers and a plurality of rear rollers are provided on the lifting platform. The front rollers, the lower rollers and the rear rollers are in rolling contact with the front side, the bottom and the rear side of the cloth roll respectively and form a rolling structure along the axial direction of the cloth roll with the cloth roll.

[0013] In the above-mentioned active feeder for a cutting table, the front roller is tilted and arranged at the front side of the lifting platform, and the rear roller is tilted and arranged at the rear side of the lifting platform. The number of the front rollers and the rear rollers is equal and they are mirror-distributed with the vertical center line of the lifting platform as the axis. The lower roller is horizontally arranged in the middle of the lifting platform, and the wheel surface of the lower roller is concave arc-shaped, and its contour line is adapted to the curvature of the bottom of the cloth roll. The front roller, the lower roller and the rear roller together form a centering structure for the cloth roll.

[0014] In the above-mentioned active feeder for a cutting table, a number of brackets parallel to each other are fixedly arranged on the lifting platform, and the brackets include a horizontal section for installing the lower roller, a front inclined section for installing the front roller, and a rear inclined section for installing the rear roller; the brackets and the front roller, lower roller and rear roller installed thereon form a rolling unit.

[0015] In the above-mentioned cutting table active feeder, the elevator is slidably arranged at the bottom of the frame, and is driven by a motor push rod to slide along the axial direction of the cloth roll to adjust the loading position; the electric push rod can also be replaced by other driving devices, such as a cylinder, a motor-driven screw assembly, etc.

[0016] In the above-mentioned cutting table active feeder, the cloth roll is a carbon fiber cloth roll.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides an active feeder for a cutting table, which accurately clamps the core tube of the cloth roll through the cylinder impeller driven by the feeding cylinder and the motor impeller driven by the feeding motor, and drives the cloth roll to rotate and discharge the material, thereby avoiding direct contact and damage to the fragile cloth roll surface by traditional clamping or friction driving methods, and realizing contactless and lossless feeding. The present invention can minimize the material loss caused to the cloth in the feeding link, thereby significantly improving the utilization rate and service life of raw materials and reducing production costs. The present invention realizes automatic loading and accurate positioning of the feeder through the lifting and positioning of the elevator and the clamping driven by the feeding cylinder, which reduces the intensity and complexity of manual intervention and improves the loading efficiency. The present invention is particularly suitable for the transportation of high-value and fragile fabrics such as aviation carbon fiber.

[0019] 2. The present invention incorporates a lift mechanism within the feeder, adding several front, lower, and rear rollers to a conventional lift platform. The coordinated cooperation of these rollers enables smooth axial movement of the fabric roll relative to the lift platform. During the lift's loading, positioning, and clamping of the fabric roll, sliding friction between the roll and the platform is effectively converted into rolling contact, significantly reducing surface damage and material loss caused by friction. Furthermore, the present invention's roller structure automatically centers the fabric roll, significantly improving its placement accuracy and centering on the lift platform, as well as the efficiency and reliability of subsequent clamping operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a perspective view of the present invention;

[0021] Figure 2 is a cross-sectional view of the present invention;

[0022] Figure 3 It is a three-dimensional diagram of the present invention (before the cloth roll is loaded);

[0023] Figure 4 is a perspective view of the lift of the present invention;

[0024] Figure 5 is a perspective view of the rolling unit of the present invention;

[0025] Figure 6This is a schematic diagram of the elevator of the present invention when placing a cloth roll;

[0026] Figure numerals: 1. Frame; 2. Feeding cylinder; 3. Cylinder impeller; 4. Feeding motor; 5. Motor impeller; 6. Cloth roll; 7. Elevator; 8. Conical convex ring; 9. Unwinding guard ring; 10. Cylinder cover; 11. Motor cover; 12. Cloth roller; 13. Lifting motor; 14. Lifting platform; 15. Front roller; 16. Lower roller; 17. Rear roller; 18. Bracket; 19. Horizontal section; 20. Front tilting section; 21. Rear tilting section; 22. Electric push rod. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to specific embodiments of the present invention. Figure 1-6 :

[0028] A cutting table active feeder includes a frame 1, one side of the frame 1 is provided with a cylinder impeller 3 that moves axially and is driven by a feeding cylinder 2, and the other side of the frame 1 is provided with a motor impeller 5 that is driven to rotate by a feeding motor 4. The cylinder impeller 3 and the motor impeller 5 are arranged opposite to each other and clamp the core tube of the cloth roll 6 through the axial movement of the cylinder impeller 3. The motor impeller 5 drives the cloth roll 6 to rotate synchronously to unwind and feed the cloth. A lifter 7 for lifting the cloth roll 6 is provided in the frame 1.

[0029] Compare with Figure 1 and attached Figure 3 The specific working method of this embodiment is as follows: the operator places the fabric roll 6 (such as a carbon fiber fabric roll) onto the lifting platform 14 of the elevator 7 using a forklift or directly. At this time, the lifting platform 14 is in a low position. The elevator 7 is started and the lifting platform 14 is driven to lift the fabric roll 6 until the core of the fabric roll 6 is flush with the center of the cylinder impeller 3 and the motor impeller 5. The piston rod of the feed cylinder 2 extends, pushing the cylinder impeller 3 axially toward the fabric roll 6. The end surface of the cylinder impeller 3 contacts the end of the core of the fabric roll 6 and drives the fabric roll 6 axially toward the motor impeller 5 until the cylinder impeller 3 and the motor impeller 5 achieve a rigid clamping of the fabric roll 6. The lifting platform 14 then returns to its original position, and the feed motor 4 is started, driving the motor impeller 5 to rotate and unwind the fabric roll 6.

[0030] In this example, the Figure 2 The specific installation structure of the cylinder impeller 3 and the motor impeller 5 is: the cylinder impeller 3 is sleeved on the piston rod of the feeding cylinder 2, and the motor impeller 5 is sleeved on the motor shaft of the feeding motor 4. The cylinder impeller 3, piston rod, motor impeller 5, motor shaft and cloth roll 6 are coaxially arranged; the cylinder impeller 3 and motor impeller 5 can also be connected to the feeding cylinder 2 and feeding motor 4 through a conventional transmission mechanism.

[0031] Furthermore, a cylinder cover 10 is provided on one side of the frame 1, and the feeding cylinder 2 is arranged in the cylinder cover 10, and its piston rod extends inwardly out of the cylinder cover 10 and is fitted with a cylinder impeller 3; a motor cover 11 is provided on the other side of the frame 1, and the feeding motor 4 is arranged in the motor cover 11, and its motor shaft extends inwardly out of the motor cover 11 and is fitted with a motor impeller 5; further, the electrical components, control mechanisms and pipelines required for the feeding cylinder 2 and the feeding motor 4 are also respectively arranged in the corresponding covers.

[0032] The end faces of the cylinder impeller 3 and motor impeller 5 facing the cloth roll 6 are coaxially provided with a conical convex ring 8 and an unwinding retaining ring 9, respectively. The conical convex ring 8 is located radially inward, its conical surface fitting within the inner bore of the core barrel end of the cloth roll 6. The unwinding retaining ring 9 is located radially outward, forming an annular rib that constrains axial displacement of the cloth roll 6. During the loading process, the conical convex ring is inserted into the inner bore of the core barrel, achieving initial radial positioning through adaptive guidance. After clamping, the conical convex ring 8 of the cylinder impeller 3 and motor impeller 5 and the unwinding retaining ring 9 work together to achieve precise coaxial positioning and rigid clamping of the cloth roll 6.

[0033] Preferably, the cylinder impeller 3 and the motor impeller 5 have the same shape and size.

[0034] A pair of cloth-feeding rollers 12 are located on the front side of the frame 1. The cloth roll 6 is fed through the gaps between these rollers 12. These rollers apply appropriate tension to the cloth, preventing wrinkles and ensuring smooth feeding to the cutting table's work area. The feed motor 4 controls the unwinding speed of the cloth roll 6 to align with the cutting table's window speed, ensuring that the carbon fiber cloth is not stretched, deformed, or accumulated during the cutting process.

[0035] This embodiment further improves the structure of the elevator 7 to further reduce cloth damage. Specifically:

[0036] A lifting platform 14 driven by a lifting motor 13 is provided on the top of the above-mentioned elevator 7, and a plurality of front rollers 15, a plurality of lower rollers 16 and a plurality of rear rollers 17 are provided on the lifting platform 14. The front rollers 15, the lower rollers 16 and the rear rollers 17 are in rolling contact with the front side, the bottom and the rear side of the cloth roll 6 respectively and form a rolling structure along the axial direction of the cloth roll 6 with the cloth roll 6.

[0037] The above-mentioned front roller 15 is tilted and arranged at the front side of the lifting platform 14, and the rear roller 17 is tilted and arranged at the rear side of the lifting platform 14. The number of the front rollers 15 and the rear rollers 17 is equal and they are mirror-imaged with the vertical center line of the lifting platform 14 as the axis. The lower roller 16 is horizontally arranged in the middle of the lifting platform 14. The wheel surface of the lower roller 16 is concave arc-shaped, and its contour line is adapted to the curvature of the bottom of the cloth roll 6. The front roller 15, the lower roller 16 and the rear roller 17 together form a centering structure for the cloth roll 6.

[0038] Compare with Figure 4 and attached Figure 6 The operation of the elevator 7 of this embodiment is as follows: an operator places the fabric roll 6 onto the lift platform 14 of the elevator 7 using a forklift or directly. The fabric roll 6 automatically falls into the concave structure formed by the front roller 15, lower roller 16, and rear roller 17. The bottom of the fabric roll 6 contacts the horizontal lower roller 16, and the front and rear sides of the fabric roll 6 contact the inclined front roller 15 and rear roller 17, respectively, forming a three-point wrap. The weight of the fabric roll 6 acts on the concave lower roller 16, restricting its horizontal movement. When the sides of the fabric roll 6 tilt forward or backward, the inclined front and rear rollers 17 generate radial forces (the front roller 15 pushes backward and upward, and the rear roller 17 pushes forward and upward), forcing the fabric roll 6 back to the centerline. Thus, the front roller 15, lower roller 16, and rear roller 17 together form a centering structure for the fabric roll 6. During the process of the cloth roll 6 moving upward and being clamped, if the cloth roll 6 moves axially relative to the lifting platform 14 , rolling friction occurs between the cloth roll 6 and the roller, which can reduce damage to the cloth roll 6 caused by friction.

[0039] Compare with Figure 5 The lifting platform 14 is fixedly provided with a plurality of mutually parallel brackets 18. The brackets 18 include a horizontal section 19 for mounting the lower roller 16, a front inclined section 20 for mounting the front roller 15, and a rear inclined section 21 for mounting the rear roller 17. The brackets 18, together with the front roller 15, lower roller 16, and rear roller 17 mounted thereon, form a rolling unit. By providing multiple rolling units (four in this embodiment), the mounting structure of each roller can be further optimized and the pressure distribution can be more evenly distributed.

[0040] The above-mentioned elevator 7 is slidably set at the bottom of the frame 1, and is driven by the electric push rod 22 to slide along the axial direction of the cloth roll 6 to adjust the loading position; through the above-mentioned adjustment device, the cloth roll 6 can be adjusted to the corresponding loading position before loading, so as to reduce the pushing distance of the cylinder impeller 3 and at the same time reduce the moving distance of the cloth roll 6 along the lifting platform 14.

[0041] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cutting bed active feeder, comprising a frame (1), characterized in that: A cylinder impeller (3) that moves axially and is driven by a feeding cylinder (2) is provided on one side of the frame (1), and a motor impeller (5) that is driven to rotate by a feeding motor (4) is provided on the other side of the frame (1). The cylinder impeller (3) and the motor impeller (5) are arranged relative to each other and clamp the core barrel of the cloth roll (6) through the axial movement of the cylinder impeller (3). The motor impeller (5) drives the cloth roll (6) to rotate synchronously to unwind and feed the cloth. A lifter (7) that lifts the cloth roll (6) is provided in the frame (1).

2. The active feeder for cutting machines according to claim 1, characterized in that: The cylinder impeller (3) is sleeved on the piston rod of the feeding cylinder (2), the motor impeller (5) is sleeved on the motor shaft of the feeding motor (4), and the cylinder impeller (3), the piston rod, the motor impeller (5), the motor shaft and the cloth roll (6) are coaxially arranged.

3. The active feeder for cutting machines according to claim 1, characterized in that: A conical convex ring (8) and an unwinding guard ring (9) are coaxially arranged on the end surfaces of the cylinder impeller (3) and the motor impeller (5) facing the cloth roll (6), respectively. The conical convex ring (8) is located radially inward, and its conical surface is adapted to the inner hole of the core barrel end of the cloth roll (6). The unwinding guard ring (9) is located radially outward, forming an annular retaining edge for restricting the axial displacement of the cloth roll (6).

4. The active feeder for cutting machines according to claim 1, characterized in that: A cylinder housing (10) is provided on one side of the frame (1), the feeding cylinder (2) is provided in the cylinder housing (10), the piston rod of which extends inwardly out of the cylinder housing (10) and is fitted with a cylinder impeller (3); a motor housing (11) is provided on the other side of the frame (1), the feeding motor (4) is provided in the motor housing (11), the motor shaft of which extends inwardly out of the motor housing (11) and is fitted with a motor impeller (5).

5. The active feeder for cutting machines according to claim 1, characterized in that: A pair of cloth-passing rollers (12) are provided on the front side of the frame (1), and the cloth roll (6) passes through the gaps between the cloth-passing rollers (12) when feeding; the feeding motor (4) controls the unwinding speed of the cloth roll (6) so that it is consistent with the window-passing speed of the cutting table.

6. The active feeder for cutting bed according to claim 1, characterized in that: A lifting platform (14) driven by a lifting motor (13) is provided on the top of the lift (7), and a plurality of front rollers (15), a plurality of lower rollers (16) and a plurality of rear rollers (17) are provided on the lifting platform (14). The front rollers (15), the lower rollers (16) and the rear rollers (17) are in rolling contact with the front side, the bottom and the rear side of the cloth roll (6) respectively, and form a rolling structure along the axial direction of the cloth roll (6) with the cloth roll (6).

7. The active feeder for cutting bed according to claim 6, characterized in that: The front roller (15) is tiltedly arranged on the front side of the lifting platform (14), and the rear roller (17) is tiltedly arranged on the rear side of the lifting platform (14). The number of the front rollers (15) and the rear rollers (17) are equal and are distributed in a mirror image with the vertical center line of the lifting platform (14) as the axis. The lower roller (16) is horizontally arranged in the middle of the lifting platform (14). The wheel surface of the lower roller (16) is in an inwardly concave arc shape, and its contour line is adapted to the curvature of the bottom of the cloth roll (6). The front roller (15), the lower roller (16) and the rear roller (17) together form a centering structure for the cloth roll (6).

8. The active feeder for cutting bed according to claim 6, characterized in that: A plurality of mutually parallel brackets (18) are fixedly arranged on the lifting platform (14), and the brackets (18) include a horizontal section (19) for mounting a lower roller (16), a front inclined section (20) for mounting a front roller (15), and a rear inclined section (21) for mounting a rear roller (17); the brackets (18) and the front roller (15), the lower roller (16), and the rear roller (17) mounted thereon form a rolling unit.

9. The active feeder for cutting bed according to claim 1, characterized in that: The elevator (7) is slidingly arranged at the bottom of the frame (1) and is driven by an electric push rod (22) to slide along the axial direction of the cloth roll (6) to adjust the loading position.

10. The active feeder for cutting machines according to claim 1, characterized in that: The cloth roll (6) is a carbon fiber cloth roll.

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