A device for removing a membrane roll core

Abstract

The utility model relates to a device for dismantling film roll pipe core belongs to film roll pipe core dismantling technical field, this device for dismantling film roll pipe core, include: frame, air cylinder, pneumatic actuator and auxiliary dismantling mechanism, the air cylinder fixed connection in the top of frame, pneumatic actuator fixed connection in the side end of frame, the air cylinder is connected with pneumatic actuator through the trachea, the auxiliary dismantling mechanism includes fixed frame and threaded column, the fixed frame fixed connection in the inboard of frame, the auxiliary dismantling mechanism is fixed in the inboard of frame through fixed frame and provides stable support base, threaded column connects air cylinder output shaft end part transmission axial thrust, telescopic cover sliding connection in the bottom of fixed frame, the rubber ring in its inboard is embedded and utilizes the elastic deformation and forms the buffer, the self -adaptation pipe core end face distortion, eliminates local stress concentration, effectively prevents the pipe core to crush and takes up the shaft bending damage, promotes the reliability of dismounting.

Description

Technical Field

[0001] This utility model relates to the field of membrane roll core removal technology, and in particular to a device for removing membrane roll cores. Background Technology

[0002] The film roll core removal device is an automated piece of equipment at the winding station of a film production line. It applies axial linear thrust to the end face of the core using a hydraulic / pneumatic pusher, forcibly ejecting the empty core from the winding shaft, achieving efficient disassembly. Suitable for rigid shaft applications, it significantly improves roll changing efficiency.

[0003] In practical applications, residual stress in the film or environmental humidity can cause radial shrinkage and end face distortion of the die, resulting in nonlinear resistance on the push rod. Local stress concentration can easily lead to die crushing, winding shaft bending, and bearing damage, which seriously restricts the reliability of the device and increases maintenance costs. Utility Model Content

[0004] Therefore, it is necessary to provide a device for removing membrane roll cores to address the problems of disassembly failure and equipment damage risks caused by core deformation in existing push-out type membrane roll core removal devices.

[0005] An apparatus for removing membrane roll cores includes: a frame, a cylinder, a pneumatic actuator, and an auxiliary removal mechanism. The cylinder is fixedly connected to the top of the frame, and the pneumatic actuator is fixedly connected to the side of the frame. The cylinder and the pneumatic actuator are connected through an air pipe. In one embodiment, the auxiliary dismantling mechanism includes a fixed frame and a threaded column. The fixed frame is fixedly connected to the inner side of the frame, and the threaded column is fixedly connected to the end of the cylinder output shaft. The threaded column is disposed on the inner side of the fixed frame, and a telescopic sleeve is slidably connected to the bottom of the fixed frame. A rubber ring is embedded in the inner side of the telescopic sleeve.

[0006] In one embodiment, the telescopic sleeve includes a ring frame, and a ring sleeve that is fixedly connected to a fixing frame is slidably connected to the inner side of the ring frame. The horizontal cross-sectional shapes of the inner sides of the ring frame and the fixing frame are both matching circles, and the rubber ring is embedded and installed between the ring frame and the ring sleeve.

[0007] In one embodiment, a vertical groove is provided on the side end of the ring sleeve, and a limit bolt is threadedly connected to the side end of the ring frame. The shank of the limit bolt passes through the ring frame and is inserted into the interior of the vertical groove.

[0008] In one embodiment, the threaded post is perpendicular to the axis of the limiting bolt, and the threaded post is parallel to the opening of the vertical groove.

[0009] In one embodiment, a positioning groove is provided at the bottom of the ring sleeve, and the top of the rubber ring is inserted into the interior of the positioning groove.

[0010] In one embodiment, a baffle plate is fixedly connected between the threaded column and the cylinder output shaft, and the baffle plate is slidably connected to the inner side of the fixing frame.

[0011] In one embodiment, a flexible protective sleeve is fixedly connected between the cylinder barrel and the baffle plate, and the cylinder output shaft is disposed inside the flexible protective sleeve.

[0012] In one embodiment, the flexible protective sleeve is a fluororubber material component, and the vertical cross-sectional shape of the flexible protective sleeve is wavy.

[0013] Beneficial effects 1. The above-mentioned device for removing the membrane roll core has an auxiliary removal mechanism that is fixed to the inside of the frame by a fixing frame to provide a stable support base. The threaded column is connected to the end of the cylinder output shaft to transmit axial thrust. The telescopic sleeve is slidably connected to the bottom of the fixing frame. The rubber ring embedded inside it uses elastic deformation to form a buffer, adapts to the distortion of the core end face, eliminates local stress concentration, effectively prevents core crushing and winding shaft bending damage, and improves the reliability of disassembly.

[0014] 2. The baffle plate is fixedly connected between the threaded column and the cylinder output shaft, and slidably connected to the inside of the fixed frame. By limiting the screwing depth of the mounting shaft and maintaining the vertical movement trajectory, it prevents overload damage caused by nonlinear resistance, avoids bending of the winding shaft and damage to the bearings, reduces maintenance costs and ensures a safe and efficient disassembly process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of a partial structure in this utility model; Figure 4 This is a cross-sectional schematic diagram of a partial structure in this utility model; Figure 5 This is an exploded view of a partial structure of this utility model.

[0017] Figure label: 100. Frame; 200. Cylinder; 300. Pneumatic actuator; 400. Auxiliary dismantling mechanism; 410. Fixing frame; 420. Threaded post; 430. Telescopic sleeve; 431. Ring frame; 432. Ring sleeve; 433. Vertical groove; 434. Limit bolt; 435. Positioning ring groove; 440. Rubber ring; 450. Baffle plate; 460. Flexible protective sleeve. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] The following is combined Figure 1 - Figure 5 This invention describes a device for removing membrane roll cores.

[0020] In one embodiment, an apparatus for removing membrane roll cores includes: a frame 100, a cylinder 200, a pneumatic actuator 300, and an auxiliary removal mechanism 400. The cylinder 200 is fixedly connected to the top of the frame 100, and the pneumatic actuator 300 is fixedly connected to the side of the frame 100. The cylinder 200 and the pneumatic actuator 300 are connected through an air pipe, and the other end of the pneumatic actuator 300 is connected to an air pump through an air pipe.

[0021] Cylinder 200 can be a standard cylinder from the Airtac SCJ200 series, with a cylinder diameter of 160mm, a stroke of 10mm-100mm, working pressure of 0.3–1.0MPa, a temperature range of -20℃ to 70℃, and an interface specification of PT3 / 4. Features include a pull rod structure, smooth buffer adjustment, optional magnetization function (models with an "S" suffix), and compatibility with sensor installation.

[0022] The pneumatic actuator 300 can be a Spirax Sarco BVA300 series rotary actuator. This product is a spring-return type, with a maximum output torque of 1296 N·m, operating pressure: 3–6 bar, temperature range: -30℃ to 100℃, and protection rating: IP65 / IP67M. The air pump can be a HAITAOGYZ25 high-pressure air pump with a maximum output pressure of 30MPa, a discharge capacity of 30L / min, a power of 750W, and a standard oil-water separator and safety valve interface. It is suitable for meeting the requirements of high-pressure and stable air supply and is compatible with pneumatic actuators.

[0023] The tubing and hose reel can be the SATA98004 automatic hose reel. Specifications: PU material tubing Ø6.5×10mm, length: 15m, connector: inlet PM20, outlet RC1 / 4".

[0024] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the auxiliary dismantling mechanism 400 includes a fixed frame 410, which is fixedly connected to the inner side of the frame 100 to provide a stable support base; a threaded column 420 is fixedly connected to the end of the output shaft of the cylinder 200 and located inside the fixed frame 410, for spirally locking the installation shaft; a telescopic sleeve 430 is slidably connected to the bottom of the fixed frame 410, and a rubber ring 440 embedded in its inner side forms a buffer thrust that adapts to the distortion of the tube end face through elastic deformation, eliminating local stress concentration; a baffle plate 450 is fixedly connected between the threaded column 420 and the output shaft of the cylinder 200, and slidably connected to the inner side of the fixed frame 410, limiting the screwing depth of the installation shaft and maintaining the vertical movement trajectory to prevent overload damage; a flexible protective sleeve 460 is a corrugated component made of fluororubber material, fixedly connected between the cylinder barrel of the cylinder 200 and the baffle plate 450, with the output shaft of the cylinder 200 placed inside it, absorbing the misalignment of the installation shaft and blocking dust intrusion; like Figure 3 , Figure 4 and Figure 5 As shown, the telescopic sleeve 430 includes a ring sleeve 432, which is fixedly connected to the fixing frame 410. The positioning ring groove 435 at its bottom allows the top of the rubber ring 440 to be accurately positioned, ensuring uniform compression. The ring sleeve 432 is slidably connected to the inner side of the ring frame 431. The horizontal cross-sections of the two are matching circles, which constrains the radial offset of the ring frame 431. The limiting bolt 434 is threadedly connected to the side end of the ring frame 431. Its rod passes through the ring frame 431 and is inserted into the vertical groove 433 at the side end of the ring sleeve 432, enabling the ring frame 431 to be quickly disassembled and assembled to adapt to different pipe diameters. The threaded post 420 is perpendicular to the axis of the limiting bolt 434, and the threaded post 420 is parallel to the opening of the vertical groove 433, avoiding interference with the disassembly path of the tube core.

[0025] In this embodiment, when it is necessary to remove membrane roll cores of different diameters or replace the rubber ring 440, the limiting bolt 434 is unscrewed to release the lock on the ring frame 431, and the ring frame 431 together with the rubber ring 440 embedded inside it can be removed as a whole. This modular design can be adapted to membrane roll cores of various diameters. During replacement, the top of the new rubber ring 440 is inserted into the positioning groove 435 at the bottom of the ring sleeve 432 for positioning; the limiting bolt 434 passes through the ring frame 431 and is inserted into the vertical groove 433 of the ring sleeve 432 and locked. The vertical groove 433 constrains the ring frame 431 to slide only axially, preventing radial sway when the core is under force.

[0026] Working principle: When the device is working, the mounting shaft with the membrane roll core is screwed onto the threaded post 420, and the screwing depth is limited by the baffle plate 450. The pneumatic actuator 300 drives the piston rod of the cylinder 200 to retract, which moves the threaded post 420 and the mounting shaft upward. At this time, the end face of the membrane roll core contacts the ring frame 431 and pushes the telescopic sleeve 430 to slide and compress along the fixed frame 410. The ring frame 431 squeezes the rubber ring 440 to produce elastic deformation, forming a gradient buffer thrust that adapts to the distortion of the end face of the core, eliminating local stress concentration. Simultaneously, the wave-shaped structure of the flexible protective sleeve 460 folds with the piston rod as it retracts, blocking external dust and absorbing the misalignment of the mounting shaft. After the core is separated from the mounting shaft, the pneumatic actuator 300 drives the piston rod to extend and reset. The baffle plate 450 slides along the inner side of the fixed frame 410 to maintain the vertical movement trajectory. Finally, the mounting shaft is unscrewed to complete the disassembly, realizing the safe separation of the membrane roll core under uniform axial load.

[0027] It should be noted that the cylinder 200, pneumatic actuator 300 and air pump mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the air pump can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0028] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for removing membrane roll cores, characterized in that, include: The frame (100), cylinder (200) and pneumatic actuator (300) are provided. The cylinder (200) is fixedly connected to the top of the frame (100), and the pneumatic actuator (300) is fixedly connected to the side of the frame (100). The cylinder (200) and the pneumatic actuator (300) are connected by air pipes. An auxiliary dismantling mechanism (400) includes a fixed frame (410) and a threaded column (420). The fixed frame (410) is fixedly connected to the inner side of the frame (100), and the threaded column (420) is fixedly connected to the end of the output shaft of the cylinder (200). The threaded column (420) is located inside the fixed frame (410). A telescopic sleeve (430) is slidably connected to the bottom of the fixed frame (410), and a rubber ring (440) is embedded in the inner side of the telescopic sleeve (430).

2. The apparatus for removing the membrane roll core according to claim 1, characterized in that, The telescopic sleeve (430) includes a ring frame (431), and a ring sleeve (432) that is fixedly connected to the fixing frame (410) is slidably connected to the inner side of the ring frame (431). The horizontal cross-sectional shapes of the inner sides of the ring frame (431) and the fixing frame (410) are both matching circles. The rubber ring (440) is embedded and installed between the ring frame (431) and the ring sleeve (432).

3. The apparatus for removing the membrane roll core according to claim 2, characterized in that, The side end of the ring sleeve (432) is provided with a vertical groove (433), and the side end of the ring frame (431) is threadedly connected with a limiting bolt (434). The rod of the limiting bolt (434) passes through the ring frame (431) and is inserted into the interior of the vertical groove (433).

4. The apparatus for removing the membrane roll core according to claim 3, characterized in that, The threaded post (420) is perpendicular to the axis of the limiting bolt (434), and the threaded post (420) is parallel to the opening of the vertical groove (433).

5. The apparatus for removing the membrane roll core according to claim 2, characterized in that, The bottom of the ring sleeve (432) is provided with a positioning ring groove (435), and the top of the rubber ring (440) is inserted into the interior of the positioning ring groove (435).

6. The apparatus for removing the membrane roll core according to claim 1, characterized in that, A baffle plate (450) is fixedly connected between the threaded column (420) and the output shaft of the cylinder (200), and the baffle plate (450) is slidably connected to the inner side of the fixed frame (410).

7. The apparatus for removing the membrane roll core according to claim 6, characterized in that, A flexible protective sleeve (460) is fixedly connected between the cylinder barrel of the cylinder (200) and the baffle plate (450), and the output shaft of the cylinder (200) is located inside the flexible protective sleeve (460).

8. The apparatus for removing the membrane roll core according to claim 7, characterized in that, The flexible protective sleeve (460) is a fluororubber material component, and the vertical cross-sectional shape of the flexible protective sleeve (460) is wavy.

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