Slitter active roof
By using a movable canopy design, the movement of the canopy is controlled by drive wheels and a variable frequency motor. Combined with airbags and pressure sensors to achieve sealing and cable chain design, the problem of difficult canopy disassembly and assembly in traditional slitting machines is solved, improving the operational stability and maintenance convenience of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN XINREN ALUMINUM FOIL TECH CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-08-04
AI Technical Summary
The rigid connection between the canopy and frame of traditional slitting machines makes it difficult to disassemble and assemble the rollers, resulting in long non-productive downtime and easy damage to the canopy structure, which affects the stability of the equipment.
It adopts a movable canopy design, using drive wheels and variable frequency motors to control the movement and sealing of the canopy. Combined with airbags and pressure sensors, it achieves closed-loop control. With the help of cable chains, it avoids cable entanglement. The frame adopts a truss structure to enhance the load-bearing capacity.
It enables flexible adjustment and precise control of the ceiling, reduces non-productive downtime, extends equipment lifespan, and improves equipment stability and ease of maintenance.
Smart Images

Figure CN224588158U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of aluminum foil production equipment, specifically to a slitting machine, and more specifically to a movable canopy of the slitting machine. Background Technology
[0002] In the aluminum foil roll processing production process, the slitting machine is a core piece of equipment. The periodic maintenance and replacement of its internal roller assembly (including unwinding rollers, slitting rollers, tension rollers, and take-up rollers) is a necessary step to ensure the accuracy of equipment operation. Traditional slitting machines generally adopt a fully enclosed box structure, with the roof and frame rigidly connected by welding or bolts. Although this design can effectively isolate external dust pollution and reduce operating noise, when using overhead cranes to disassemble and install the rollers, operators need to use auxiliary tools to destructively disassemble parts of the roof structure, resulting in prolonged non-productive downtime. Furthermore, repeated disassembly and assembly can cause deterioration of the roof structure, thereby affecting the stability of equipment operation.
[0003] The utility model patent with announcement number CN220241671U discloses a dust cover for a slitting machine. It uses a telescopic pneumatic rod to drive the canopy to move along the slide rail, which is convenient for electric control. However, the pneumatic rod experiences significant wear during telescopic movement, which leads to frequent replacement and maintenance. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a movable canopy for a slitting machine, so that the canopy of the slitting machine can be moved and adjusted to adapt to actual production needs.
[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: A movable canopy for a slitting machine includes a guide rail, a frame slidably mounted on the guide rail, a canopy fixedly mounted on the frame, a plurality of wheels on the frame, at least one of the wheels being a drive wheel, the drive wheel being connected to a power unit, and the power unit being electrically connected to an industrial control board.
[0006] Furthermore, the drive shaft of the drive wheel is connected to the output end of the drive motor, and the drive motor is fixedly mounted on the frame.
[0007] Furthermore, the frame includes an outer perimeter frame and a connecting frame, wherein the connecting frame is connected to the outer perimeter frame in a crisscross pattern on the inner side of the outer perimeter frame.
[0008] Furthermore, the turning points of the outer frame are smoothly connected via connecting bends.
[0009] Furthermore, a long groove is provided on the bottom surface of the outer frame, and an airbag is installed in the long groove. The airbag is connected to the output end of the blower via a hose. When the airbag is inflated, it passes through the long groove and expands to seal the frame with the guide rail and the top surface of the slitting machine. The blower is electrically connected to the industrial control board.
[0010] Furthermore, a pressure sensor is installed inside the airbag, and the pressure sensor is electrically connected to the industrial control board. The fan uses a variable frequency motor to output airflow.
[0011] Furthermore, the top surface of the slit is provided with a connecting groove adapted to the airbag, and the cross-section of the connecting groove is an inverted trapezoid.
[0012] Furthermore, a drag chain is provided on the outer side of the guide rail in the same direction as the guide rail. A connecting hole is provided on the side wall of one end of the drag chain. The drive shaft of the drive wheel extends laterally and is rotatably disposed in the connecting hole. The other end of the drag chain is fixedly disposed on the drag chain frame.
[0013] Furthermore, the canopy includes multiple panels, which are detachably mounted on the frame by means of bolts, clips, or other connections.
[0014] Furthermore, the canopy is transparent, and the transparent body is preferably made of polycarbonate sheet.
[0015] The advantages and beneficial effects of this utility model are as follows: 1. The system adopts a direct-drive wheel and variable frequency motor structure, coupled with industrial control board control, to achieve precise adjustment of the ceiling's start / stop and speed. The cable chain and drive shaft are linked for synchronous winding and unwinding of flexible hoses and related circuit wires, preventing cable tangling.
[0016] 2. This utility model includes an outer frame and a connecting frame. The longitudinal and transverse connecting frames form a truss structure, which improves the load pressure that the frame can withstand.
[0017] 3. Long grooves for internal airbags are cut into the ground of the outer perimeter frame. The airbags can be adhered to the long grooves. The outer perimeter frame smoothly transitions at the turning points through connecting bends, allowing the airbags to inflate easily and extend from the long grooves to fill assembly gaps, achieving good dust prevention. In addition, the airbags, together with pressure sensors and variable frequency fans, achieve closed-loop control of airbag pressure. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the connecting frame of this utility model; In the diagram: 1. Guide rail; 2. Frame; 21. Outer frame; 22. Connecting frame; 23. Connecting bend; 24. Long groove; 25. Airbag; 26. Pressure sensor; 27. Connecting hole; 28. Cable chain frame; 3. Canopy; 31. Plate; 4. Wheel; 41. Drive wheel; 42. Drive shaft; 43. Drive motor; 5. Fan; 6. Connecting groove; 7. Cable chain. Detailed Implementation
[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0020] Example 1 Please see Figures 1-2 The movable canopy of this slitting machine includes a guide rail 1, a frame 2, and a canopy 3. The guide rail 1 is fixed to both sides of the slitting machine body, and the frame 2 is slidably mounted on the guide rail 1 via multiple wheels 4. At least one wheel is a drive wheel 41, and the drive shaft 42 of the drive wheel 41 passes through the frame 2 and is directly connected to the output end of a drive motor 43. The drive motor 43 is fixed to the side wall of the frame 2 and its start, stop, and speed are controlled by an industrial control board (not shown). The canopy 3 is fixed to the top of the frame 2 with bolts and is composed of multiple transparent polycarbonate panels 31, facilitating disassembly and maintenance.
[0021] Example 2 Frame 2 is a truss structure composed of an outer perimeter frame 21 and intersecting connecting frames 22. The corners of the outer perimeter frame 21 are smoothly transitioned by arc-shaped connecting bends 23 to avoid stress concentration. A long groove 24 is formed at the bottom of the outer perimeter frame 21, within which an airbag 25 is bonded. The airbag 25 is connected to the air outlet of the fan 5 via a flexible hose. When the fan 5 starts, the airbag 25 inflates and passes through the long groove 24, tightly fitting against the guide rail 1 and the inverted trapezoidal connecting groove 6 on the top surface of the slitting machine, forming a sealed dustproof structure. A pressure sensor 26 is integrated inside the airbag 25 to monitor the air pressure in real time and feed the signal back to the industrial control board. The industrial control board adjusts the output power of the variable frequency motor of the fan 5 to achieve closed-loop control of the airbag pressure.
[0022] Example 3 A drag chain 7 is arranged parallel to the outer side of the guide rail 1. A connection hole 27 is opened on the side wall of one end of the drag chain 7, and the drive shaft 42 of the drive wheel 41 extends laterally and is rotatably connected in the hole; the other end of the drag chain 7 is fixed to the drag chain frame 28. When the ceiling moves, the drag chain 7 is retracted and extended synchronously with the drive shaft 42 to avoid tangling of the hose connecting the fan 5 and the power cord of the drive motor 43.
[0023] The working principle of this utility model is as follows: Upon startup, the industrial control board controls the drive motor 43 to move the drive wheel 41 along the guide rail 1, and the cable chain 7 unfolds synchronously. When the slitting machine canopy is closed, the industrial control board controls the fan 5 to inflate the airbag 25, causing it to expand and seal the gap between the frame, guide rail, and slitting machine. The pressure sensor 26 dynamically adjusts the inflation volume. When the canopy needs adjustment for overhead crane lifting, the industrial control board is manually operated. First, the fan stops or reverses, causing the airbag to retract back into the long slot. Then, the drive motor is started, and the drive wheel moves along the guide rail, moving the canopy. The transparent panel 31 provides protection without obstructing the operator's view, facilitating the crane's arrival at the designated position. For maintenance, the multiple quickly detachable panels 31 do not need to be replaced entirely; only some panels can be replaced using bolts or clips.
[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A movable canopy for a slitting machine, comprising a guide rail (1), characterized in that: A frame (2) is slidably mounted on the guide rail (1). A canopy (3) is fixedly mounted on the frame (2). The frame (2) is provided with multiple wheels (4). At least one of the multiple wheels (4) is a drive wheel (41). The drive wheel (41) is connected to a power device, which is electrically connected to the industrial control board.
2. The movable canopy of the slitting machine according to claim 1, characterized in that: The drive shaft (42) of the drive wheel (41) is connected to the output end of the drive motor (43), which is fixedly mounted on the frame (2).
3. The movable canopy of the slitting machine according to claim 1 or 2, characterized in that: The frame (2) includes an outer frame (21) and a connecting frame (22), the connecting frame (22) being connected to the outer frame (21) in a crisscross pattern on the inner side of the outer frame (21).
4. The movable canopy of the slitting machine according to claim 3, characterized in that: The turning point of the outer frame (21) is smoothly connected by a connecting bend (23).
5. The movable canopy of the slitting machine according to claim 3, characterized in that: The bottom surface of the outer frame (21) is provided with a long groove (24), and an airbag (25) is provided in the long groove (24). The airbag (25) is connected to the output end of the blower (5) via a hose. When the airbag (25) is inflated, it expands through the long groove (24) and forms a seal between the guide rail (1) and the top surface of the slitting machine. The blower (5) is electrically connected to the industrial control board.
6. The movable canopy of the slitting machine according to claim 5, characterized in that: The airbag (25) is equipped with a pressure sensor (26), which is electrically connected to the industrial control board. The fan (5) uses a variable frequency motor to output wind power.
7. The movable canopy of the slitting machine according to claim 5, characterized in that: The top surface of the slitting machine is provided with a connecting groove (6) that is compatible with the airbag (25), and the cross-section of the connecting groove (6) is an inverted trapezoid.
8. The movable canopy of the slitting machine according to claim 1, characterized in that: A drag chain (7) is provided on the outer side of the guide rail (1) along the guide rail direction. A connection hole (27) is provided on the side wall of one end of the drag chain (7). The drive shaft (42) of the drive wheel (41) extends laterally and is rotatably disposed in the connection hole (27). The other end of the drag chain (7) is fixedly disposed on the drag chain frame (28).
9. The movable canopy of the slitting machine according to claim 1, characterized in that: The canopy (3) includes multiple panels (31) which are detachably mounted on the frame (2).
10. The movable canopy of the slitting machine according to claim 9, characterized in that: The canopy (3) is transparent.