A roll transfer cart
By designing a placement platform driven by lifting airbags and a positioning mechanism for synchronous displacement, the problems of coil material falling during transfer and manual handling were solved, achieving stable transportation and automatic lifting of coil material and saving labor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG QIZHEN TECH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, coiled materials are prone to falling and being damaged during the transfer process, and require laborious manual handling, making it impossible to reliably transport them to the feeding mechanism.
A roll material transfer trolley was designed, equipped with a lifting mechanism and a positioning mechanism. The lifting mechanism drives the placement platform to rise and fall through a lifting airbag, and the positioning mechanism uses a first positioning roller and a second positioning roller to synchronously mirror displacement around the central axis to adapt to roll materials of different diameters.
It enables stable transportation of coiled materials and assisted lifting to the feeding mechanism, saving labor and improving transportation efficiency.
Smart Images

Figure CN224447839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transfer devices, specifically to a roll material transfer trolley. Background Technology
[0002] Existing double-sided printing equipment requires transferring and transporting the roll material to the feeding mechanism, and then manually lifting the roll material to the feeding mechanism for installation. Manual handling is laborious, and ordinary trolleys cannot stabilize the roll material during the transfer and transportation process, making it easy for the roll material to fall and be damaged during handling. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology.
[0004] A roll material transfer trolley is provided to stably transport roll materials and assist in lifting the roll materials to the feeding mechanism, saving labor.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a roll material transfer trolley, comprising a trolley body, characterized in that: the trolley body is provided with a lifting platform, the placing platform is provided with a lifting mechanism for driving its lifting and lowering, and the placing platform is provided with a positioning mechanism that can adjust to adapt to roll materials of different diameters.
[0006] The present invention, which has the above features, has a lifting mechanism that drives the placement platform to lift and lower, which can assist in lifting the roll material to the feeding mechanism, and a positioning mechanism that can be adjusted to fit roll materials of different diameters, thus ensuring stable transport of the roll material.
[0007] A further feature of this invention is that the positioning mechanism includes a base fixedly mounted on a placement platform. A first positioning roller and a second positioning roller are mirror-image mounted on both sides of the base. A first plate is mounted at each end of the first positioning roller, and a second plate is mounted at each end of the second positioning roller. A rotatable central shaft passes through the base, with both ends of the central shaft exposed outside the base. Each first plate is connected to both ends of the central shaft, and each second plate is also connected to both ends of the central shaft. The first and second plates on the same side of the base are offset. The first and second positioning rollers synchronously mirror-image-displace around the central shaft along an arc trajectory.
[0008] The present invention, which has the above features, allows the first positioning roller and the second positioning roller to perform synchronous mirror displacement around the central axis along an arc trajectory, thereby achieving adjustment and adaptation to rolls of different diameters.
[0009] A further feature of this invention is that: a first arc groove centered on the central axis is formed on the inner side of the first plate body, and a second arc groove centered on the central axis is formed on the outer side of the second plate body. The width of the first arc groove is the same as the width of the second arc groove, and the distance between the first arc groove and the second arc groove and the central axis is the same. A matching arc plate is movably inserted into the first arc groove and the second arc groove on the same side of the base. The arc plate is provided with an arc guide groove centered on the central axis. The first plate body and the second plate body are respectively provided with positioning pins. The positioning pins are set in the arc guide grooves and can lock and clamp the arc plate or loosen and unlock the arc plate.
[0010] The present invention, which has the above features, achieves angle adjustment by rotating the first plate and the second plate, and locks the relative position of the arc plate with the first plate and the second plate by locking the position.
[0011] A further feature of this invention is that one end of the positioning pin is threadedly connected to the first plate or the second plate, and the other end is provided with an end cap, the diameter of which is larger than the diameter of the arc guide groove.
[0012] The present invention, which has the above-mentioned features, achieves the contact or separation between the end cap and the arc plate by adjusting the depth of the rotating positioning pin thread, thereby fixing or adjusting the included angle between the first plate and the second plate.
[0013] A further feature of this invention is that the lifting mechanism is a lifting airbag, which is positioned between the trolley body and the placement platform.
[0014] The present invention, which has the above-mentioned features, uses the inflation and deflation of the lifting airbag to drive the lifting and lowering of the placement platform.
[0015] A further feature of this invention is that the trolley body is provided with multiple guide rods, the guide rods pass through the placement platform, and the placement platform is movably coordinated with the guide rods.
[0016] The present invention, which has the above-mentioned features, has a guide rod that makes the lifting and lowering of the placement platform more stable.
[0017] The beneficial effects of this utility model are: it stabilizes the transport of rolled materials and can assist in lifting the rolled materials to the feeding mechanism, saving labor.
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0019] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the present utility model. Figure 1 .
[0020] Figure 2This is a three-dimensional schematic diagram of an embodiment of the present utility model. Figure 2 . Detailed Implementation
[0021] like Figure 1 —— Figure 2 The illustrated material transfer trolley includes a trolley body 1, a lifting platform 2, a lifting mechanism for driving the lifting of the platform 2, and a positioning mechanism for adjusting to accommodate materials of different diameters. The positioning mechanism includes a base 3 fixedly mounted on the platform. A first positioning roller 4 and a second positioning roller 5 are mirror-image positioned on both sides of the base 3. The first and second positioning rollers 4 and 5 have circumferentially rotating outer end faces made of flexible materials such as rubber to prevent damage to the material. The first positioning roller 4 has a first plate 6 at each end, and the second positioning roller 5 has a second plate 7 at each end. A rotatable central shaft 8 extends through the base 3, with both ends of the central shaft 8 exposed outside the base 3. Each first plate 6 is connected to both ends of the central shaft 8, and each second plate 7 is connected to both ends of the central shaft 8. The first plate 6 and second plate 7 on the same side of the base 3 are offset. The first positioning roller 4 and second positioning roller 5 synchronously mirror-image-displace around the central shaft 8 along an arc trajectory. A first arc centered on the central shaft 8 is formed on the inner side of each first plate 6. The outer side of the second plate 7 has a second arc groove 701 centered on the central axis 8. The width of the first arc groove 601 is the same as the width of the second arc groove 701. The distances between the first arc groove 601 and the second arc groove 701 and the central axis 8 are the same. A matching arc plate 9 is movably inserted into the first arc groove 601 and the second arc groove 701 on the same side of the base 3. The arc plate 9 has an arc guide groove 901 centered on the central axis 8. The first plate 6 and the second plate 7 are respectively provided with positioning pins. Within the arc guide groove 901, the positioning pin 901 can lock and clamp the arc plate 9 or loosen and unlock the arc plate 9. One end of the positioning pin is threadedly connected to the first plate 6 or the second plate 7, and the other end is provided with an end cap. The diameter of the end cap is larger than the diameter of the arc guide groove 901. The positioning pin is not shown in the figure. The lifting mechanism is a lifting airbag 10. The lifting airbag 10 is set between the trolley body 1 and the placement platform 2. The trolley body 1 is provided with multiple guide rods 11. The guide rods 11 pass through the placement platform 2, and the placement platform 2 is movablely engaged with the guide rods 11.
Claims
1. A roll transfer cart comprising a cart body, characterized by: The trolley body is equipped with a lifting platform, which is equipped with a lifting mechanism to drive its lifting and lowering. The platform is also equipped with a positioning mechanism that can be adjusted to adapt to rolls of material of different diameters. The positioning mechanism includes a base fixedly mounted on the platform. A first positioning roller and a second positioning roller are mirror-mounted on both sides of the base. A first plate is mounted on each end of the first positioning roller, and a second plate is mounted on each end of the second positioning roller. A rotatable central shaft is passed through the base, with both ends of the central shaft exposed outside the base. Each first plate is connected to both ends of the central shaft, and each second plate is connected to both ends of the central shaft. The first and second plates on the same side of the base are offset. The first and second positioning rollers move synchronously and mirror-mounted around the central shaft along an arc trajectory.
2. A roll transfer cart according to claim 1, wherein: The first plate has a first arc groove centered on the central axis on its inner side, and the second plate has a second arc groove centered on the central axis on its outer side. The width of the first arc groove is the same as the width of the second arc groove. The distance between the first arc groove and the second arc groove and the central axis is the same. The first arc groove and the second arc groove on the same side of the base are movably connected to a matching arc plate. The arc plate has an arc guide groove centered on the central axis. The first plate and the second plate are respectively provided with positioning pins. The positioning pins are set in the arc guide grooves and can lock and clamp the arc plate or loosen and unlock the arc plate.
3. A roll transfer cart according to claim 2, wherein: One end of the positioning pin is threaded to the first plate or the second plate, and the other end is provided with an end cap, the diameter of which is larger than the diameter of the arc guide groove.
4. A roll transfer cart according to claim 1, wherein: The lifting mechanism is a lifting airbag, which is located between the trolley body and the placement platform.
5. A roll transfer cart according to claim 4, wherein: The trolley body is equipped with multiple guide rods, which pass through the placement platform, and the placement platform is movably connected with the guide rods.