Lift adjustment device for feeding a cutting table
By setting a roller structure on the cutting bed lifting platform, the rolling contact of the fabric roll is replaced by sliding friction, which solves the problem of damage caused by fabric roll sliding, improves the positioning accuracy and clamping efficiency of the fabric roll, and is suitable for conveying high-value fabrics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BULLMER ELECTROMECHANICAL TECH
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-24
AI Technical Summary
The existing design of the lifting platform of the cutting table causes the fabric roll to slide easily during placement and positioning, resulting in friction damage. This is especially true for surface-sensitive materials such as carbon fiber fabric rolls, causing scratches and wear, which affects material quality and cutting accuracy.
Several front rollers, lower rollers, and rear rollers are set on the lifting platform to form a rolling structure along the fabric roll axis. The rollers contact the front, bottom, and rear sides of the fabric roll, replacing sliding friction with rolling contact. Combined with the centering structure, the fabric roll is ensured to be centered and positioned.
It significantly reduces surface damage and material loss of fabric rolls, improves the placement accuracy of fabric rolls on the lifting platform and the efficiency and reliability of clamping operations, and is especially suitable for high-value and fragile fabrics such as aerospace carbon fiber.
Smart Images

Figure CN224547202U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of cutting bed accessories, and relates to a lifting and adjusting device for feeding materials on a cutting bed. Background Technology
[0002] The fabric roll loading auxiliary mechanism on the cutting table mainly relies on a lifting platform for operation. The specific process is as follows: First, the heavy fabric roll is moved to the dedicated lifting platform of the lifting platform by a forklift or manually. This lifting platform has a height adjustment function, which can automatically or manually adjust its vertical position after the fabric roll is placed to adapt to the needs of subsequent operations or fabric rolls of different specifications, preparing the fabric roll for entering the cutting table area.
[0003] The main drawback of this mechanism lies in the design of its lifting platform. Once the fabric roll is placed on the platform, it is highly susceptible to sliding due to machine vibration or even slight external forces. Furthermore, the fabric roll also needs to slide relative to the platform during positioning and adjustment. This sliding generates friction, which is particularly detrimental to surface-sensitive materials (such as carbon fiber fabric rolls), easily causing scratches, abrasions, and even internal structural damage to the fabric roll, severely impacting material quality and subsequent cutting accuracy. Utility Model Content
[0004] This utility model addresses the shortcomings of existing technologies by providing a lifting and adjusting device for feeding fabric onto a cutting bed, which can reduce surface damage or material loss of the fabric roll caused by friction.
[0005] To solve the above-mentioned technical problems, the objective of this utility model is achieved through the following technical solution:
[0006] A lifting and adjusting device for feeding cutting bed includes a lifting machine, the top of which is provided with a lifting platform driven by a power device. The lifting platform is characterized in that it is provided with a plurality of front rollers, a plurality of lower rollers and a plurality of rear rollers, the front rollers, lower rollers and rear rollers respectively rolling contact with the front side, bottom and rear side of the fabric roll and forming a rolling structure along the axial direction of the fabric roll.
[0007] In the above-mentioned lifting and adjusting device for feeding cutting bed, the front roller is inclinedly arranged on the front side of the lifting platform, and the rear roller is inclinedly arranged on the rear side of the lifting platform. The number of the front roller and the rear roller are equal and they are distributed in a mirror image 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. The front roller, the lower roller and the rear roller together form a centering structure for the fabric roll.
[0008] In the above-mentioned lifting and adjusting device for feeding cutting bed, the front roller and the rear roller are rollers of the same shape and size.
[0009] In the above-mentioned lifting and adjusting device for feeding fabric into a cutting bed, the surface of the lower roller is concave arc-shaped, and its outline is adapted to the curvature of the bottom of the fabric roll.
[0010] In the above-mentioned lifting and adjusting device for feeding cutting bed, the lifting platform is provided with several through slots, and the lower roller is installed in the through slot of the lifting platform or at the left / right end of the lifting platform. The bottom plane of the lower roller is lower than the plane at the bottom of the lifting platform. When the lower roller is installed at the left / right end of the lifting platform, the end of the lifting platform is provided with a notch that matches it.
[0011] In the above-mentioned lifting and adjusting device for feeding cutting bed, several parallel supports are fixedly installed on the lifting platform. Each support includes a horizontal section for mounting the lower roller, a forward inclined section for mounting the front roller, and a backward inclined section for mounting the rear roller. The support, together with the front roller, lower roller, and rear roller, forms a rolling unit. Preferably, the front roller, lower roller, and rear roller are mounted on the side of the support via corresponding roller supports. More preferably, the front roller, lower roller, and rear roller of adjacent rolling units are mounted on different sides of the corresponding support.
[0012] In the above-mentioned lifting and adjusting device for feeding cutting bed, the horizontal section, the forward inclined section and the backward inclined section are respectively provided with strip grooves, and the front roller, the lower roller and the rear roller are adjustablely installed in the corresponding strip grooves.
[0013] In the above-mentioned lifting and adjusting device for feeding materials on a cutting bed, the lifting machine is a scissor lift, and the power device is a lifting motor.
[0014] In the above-mentioned lifting and adjusting device for feeding cutting bed, the fabric roll is a carbon fiber fabric roll.
[0015] Compared with the prior art, this utility model has the following advantages:
[0016] This invention provides a lifting and adjusting device for feeding fabric onto a cutting table. Several front rollers, lower rollers, and rear rollers are added to a conventional lifting platform. Through the coordinated operation of these rollers, smooth axial movement of the fabric roll relative to the lifting platform is achieved. During the process of the lifting platform lifting, positioning, and clamping the fabric roll, the sliding friction between the fabric roll and the platform is effectively converted into rolling contact, thus significantly reducing surface damage or material loss caused by friction. Simultaneously, the roller structure of this invention can automatically center the fabric roll, greatly optimizing the placement accuracy, centering positioning, and subsequent clamping efficiency and reliability of the fabric roll on the lifting platform. This invention is particularly suitable for conveying high-value, fragile fabrics such as aerospace carbon fiber. Attached Figure Description
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a perspective view of the rolling unit of this utility model;
[0019] Figure 3 This is a schematic diagram of the fabric roll being placed according to this utility model;
[0020] Reference numerals: 1. Elevator; 2. Power unit; 3. Lifting platform; 4. Front roller; 5. Lower roller; 6. Rear roller; 7. Fabric roll; 8. Through groove; 9. Support; 10. Horizontal section; 11. Forward inclined section; 12. Rear inclined section; 13. Strip groove. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-3 :
[0022] A lifting and adjusting device for feeding fabric on a cutting table includes a lifting platform 1. The top of the lifting platform 1 is equipped with a lifting platform 3 driven by a power unit 2. The lifting platform 3 is characterized by having a plurality of front rollers 4, a plurality of lower rollers 5, and a plurality of rear rollers 6. The front rollers 4, lower rollers 5, and rear rollers 6 respectively roll in contact with the front, bottom, and rear sides of a fabric roll 7, forming a rolling structure along the axial direction of the fabric roll 7. Specifically, referring to the accompanying drawings, the front rollers 4 are inclined. On the front side of the lifting platform 3, the rear roller 6 is inclinedly arranged on the rear side of the lifting platform 3. The number of the front roller 4 and the rear roller 6 are equal and they are distributed in a mirror image with the vertical center line of the lifting platform 3 as the axis. The lower roller 5 is horizontally arranged in the middle of the lifting platform 3. The front roller 4, the lower roller 5 and the rear roller 6 together form the centering structure of the fabric roll 7. The front roller 4 and the rear roller 6 are rollers with the same shape and size. The wheel surface of the lower roller 5 is concave arc-shaped, and its outline is adapted to the curvature of the bottom of the fabric roll 7.
[0023] Comparison Appendix Figure 1 and attached Figure 3The working process of this embodiment is as follows: The operator places the fabric roll 7 (such as carbon fiber fabric roll 7) onto the lifting platform 3 of the elevator 1 using a forklift or directly. The fabric roll 7 automatically falls into the concave structure formed by the front roller 4, the lower roller 5, and the rear roller 6. The bottom of the fabric roll 7 contacts the horizontal lower roller 5, and the front / rear sides of the fabric roll 7 contact the inclined front roller 4 and the rear roller 6 respectively, forming a three-point wrapping. The gravity of the fabric roll 7 acts on the concave lower roller 5, restricting its horizontal movement. When the side of the fabric roll 7 tilts forward / backward, the inclined front / rear roller 6 generates a radial component force (the front roller 4 pushes backward and upward, and the rear roller 6 pushes forward and upward), forcing the fabric roll 7 back to the center line. Thus, the front roller 4, the lower roller 5, and the rear roller 6 together form the centering structure of the fabric roll 7. Afterward, the elevator 1 is started, and the fabric roll 7 moves upward with the lifting platform 3 until it reaches the loading height. The feeding mechanism clamps the fabric roll 7 to complete the loading, and the elevator 1 is reset. During the upward movement and clamping of the fabric roll 7, if the fabric roll 7 moves axially relative to the lifting platform 3, the fabric roll 7 will experience rolling friction with the rollers, which can reduce the damage to the fabric roll 7 caused by friction.
[0024] The aforementioned lifting platform 3 is provided with several through slots 8. The lower roller 5 is installed in the through slot 8 of the lifting platform 3 or at the left / right end of the lifting platform 3. The bottom plane of the lower roller 5 is lower than the plane at the bottom of the lifting platform 3. When the lower roller 5 is installed at the left / right end of the lifting platform 3, the end of the lifting platform 3 is provided with a notch that matches it.
[0025] Comparison Appendix Figure 2 The aforementioned lifting platform 3 is fixedly provided with several parallel brackets 9. Each bracket 9 includes a horizontal section 10 for mounting the lower roller 5, a forward inclined section 11 for mounting the front roller 4, and a rear inclined section 12 for mounting the rear roller 6. The bracket 9 and its mounted front roller 4, lower roller 5, and rear roller 6 form a rolling unit. Preferably, the front roller 4, lower roller 5, and rear roller 6 are mounted on the side of the bracket 9 via corresponding roller brackets 9. Preferably, the front roller 4, lower roller 5, and rear roller 6 of adjacent rolling units are mounted on different sides of the corresponding bracket 9.
[0026] The horizontal section 10, the forward inclined section 11, and the backward inclined section 12 are each provided with a strip groove 13, and the front roller 4, the lower roller 5, and the rear roller 6 are adjustablely installed in the corresponding strip groove 13. By adjusting the positions of the front roller 4, the lower roller 5, and the rear roller 6, fabric rolls 7 with different radial dimensions can be adapted.
[0027] In this embodiment, the elevator 1 is a scissor lift, and the power unit 2 is a lifting motor.
[0028] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.
Claims
1. A lifting and adjusting device for feeding materials on a cutting bed, comprising a lifting machine (1), wherein a lifting platform (3) driven by a power device (2) is provided on the top of the lifting machine (1), characterized in that, The lifting platform (3) is provided with a number of front rollers (4), a number of lower rollers (5) and a number of rear rollers (6). The front rollers (4), lower rollers (5) and rear rollers (6) respectively roll in contact with the front side, bottom and rear side of the fabric roll (7) and form a rolling structure along the axial direction of the fabric roll (7).
2. The lifting and adjusting device for feeding materials on a cutting bed according to claim 1, characterized in that, The front roller (4) is inclinedly arranged on the front side of the lifting platform (3), and the rear roller (6) is inclinedly arranged on the rear side of the lifting platform (3). The number of the front roller (4) and the rear roller (6) are equal and they are distributed in a mirror image with the vertical center line of the lifting platform (3) as the axis. The lower roller (5) is horizontally arranged in the middle of the lifting platform (3). The front roller (4), the lower roller (5) and the rear roller (6) together form the centering structure of the cloth roll (7).
3. The lifting and adjusting device for feeding materials on a cutting bed according to claim 1, characterized in that, The surface of the lower roller (5) is concave arc-shaped, and its outline matches the curvature of the bottom of the cloth roll (7).
4. The lifting and adjusting device for feeding materials on a cutting bed according to claim 1, characterized in that, The lifting platform (3) is provided with several through slots (8), and the lower roller (5) is installed in the through slot (8) of the lifting platform (3) or at the left / right end of the lifting platform (3). The bottom plane of the lower roller (5) is lower than the plane where the bottom of the lifting platform (3) is located.
5. The lifting and adjusting device for feeding materials on a cutting bed according to claim 1, characterized in that, The lifting platform (3) is fixedly provided with several parallel brackets (9). The brackets (9) include a horizontal section (10) for installing the lower roller (5), a front inclined section (11) for installing the front roller (4), and a rear inclined section (12) for installing the rear roller (6). The brackets (9) together with the front roller (4), lower roller (5) and rear roller (6) form a rolling unit.
6. The lifting and adjusting device for feeding materials on a cutting bed according to claim 5, characterized in that, The horizontal section (10), the front inclined section (11) and the rear inclined section (12) are respectively provided with strip grooves (13), and the front roller (4), the lower roller (5) and the rear roller (6) are adjustablely installed in the corresponding strip grooves (13).
7. The lifting and adjusting device for feeding materials on a cutting bed according to claim 1, characterized in that, The elevator (1) is a scissor lift, and the power unit (2) is a lifting motor.
8. The lifting and adjusting device for feeding materials on a cutting bed according to claim 1, characterized in that, The fabric roll (7) is a carbon fiber fabric roll.