Rapid roller replacing device of calender

Abstract

The utility model relates to the technical field of roller replacement, in particular to a rapid roller replacement device of a calender, which comprises portal frames, rollers are arranged between the portal frames, and a first sliding chute and a second sliding chute are respectively arranged on two sides of the portal frames; the disassembling and assembling mechanism comprises a first sliding block and a second sliding block which are arranged at the two ends of the roller respectively, the first sliding block is arranged in the first sliding groove, the second sliding block is arranged in the second sliding groove, and the inner wall of one end of the roller is slidably connected with a telescopic block; the servo motor is arranged between the two sliding rails and is driven by the electric push rod, the servo motor can be separated from the roller in cooperation with the adapter, the servo motor is matched with the threaded rod so that the telescopic block can retract into the roller, one end of the roller can slide in the second sliding groove through the adapter block, and meanwhile a clamping block at the other end of the roller can be lifted. And a worker can conveniently and quickly replace the roller.

Description

Technical Field

[0001] This utility model relates to the field of roll replacement technology, and in particular to a quick roll replacement device for a calender. Background Technology

[0002] A calender is a mechanical device that continuously calenders materials using rotating rolls, and is widely used in the production of sheets and films in industries such as rubber, plastics, and metals. Its core component, the rolls, will experience surface wear, scratches, or thermal fatigue under long-term high-pressure and high-temperature operating conditions, leading to uneven product thickness and reduced surface smoothness. Furthermore, the production of different product specifications requires rolls with different diameters or surface textures. Therefore, periodic or on-demand roll replacement is a crucial step in ensuring product quality and adapting to multi-variety production. To improve production efficiency, rapid roll replacement is necessary, thus requiring a quick roll replacement device for the calender.

[0003] According to the Chinese patent "A Metal Rolling Mill with Easy-to-Replace Rolling Rolls" authorized announcement number "CN217570190U", this utility model installs a limit plate on the front of the knob. When the roller body needs to be replaced, the limit plate can be disengaged from the limit door by rotating the limit plate and the knob. At this time, the limit door can be opened, and the operator can pull out the bearing to disassemble and replace the roller body. This reduces the difficulty of replacing the roller body, facilitates the operator's inspection and maintenance, and improves the ease of use of the device.

[0004] Although the aforementioned application can disengage the limiting plate from the limiting gate by rotating the limiting plate and the knob, thereby opening the limiting gate and pulling out the bearing, this application can only pull out the bearing at one end of the roller body, while the other end is still set inside the gantry, which is also inconvenient for replacing the roller.

[0005] Therefore, a quick roll changing device for a calender is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a quick roll changing device for a calender to solve the above-mentioned problems, thereby improving the inconvenience of changing rolls.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a quick roll changing device for a calender, comprising: a gantry frame, rolls arranged between the gantry frames, and a first slide groove and a second slide groove respectively provided on both sides of the gantry frame;

[0008] The disassembly and assembly mechanism includes a first slider and a second slider respectively disposed at both ends of the roll. The first slider is disposed in a first groove, and the second slider is disposed in a second groove. A telescopic block is slidably connected to the inner wall of one end of the roll.

[0009] Preferably, the first slider is rotatably connected to the telescopic block, and the telescopic block is circular with multiple limiting blocks on its surface to prevent rotation of the telescopic block.

[0010] Preferably, a threaded rod is provided between one end of the first slider near the roll and the gantry frame. One end of the threaded rod is rotatably connected to the inner wall of the roll, and the other end is fixedly connected to an adapter block and disposed inside the gantry frame. This causes the first slider to disengage from the gantry frame.

[0011] Preferably, two slide rails are fixedly connected to the surface of the gantry frame near the first slider, and a servo motor is slidably connected between the two slide rails, causing the adapter block to slide out of the first slide groove.

[0012] Preferably, an electric push rod is fixedly connected to the surface of the gantry frame, one end of the servo motor extends through one of the slide rails, and the drive end of the servo motor is fixedly connected to the end of the servo motor extending through the slide rail. This drives the servo motor to move.

[0013] Preferably, the telescopic block is disposed on the surface of the threaded rod, and the drive end of the servo motor is inserted into the adapter block.

[0014] Preferably, a locking block is slidably connected to the inner wall of the gantry frame near the second slider, and the locking block is positioned above the second slide groove to limit the movement of the second slider.

[0015] The beneficial effects of this utility model are:

[0016] 1. By setting the servo motor between two slide rails and driving it with an electric push rod, and using an adapter to separate the servo motor from the roll, the servo motor can be used in conjunction with the threaded rod to retract the telescopic block into the roll, while simultaneously driving the second slider to disengage from the gantry. This allows one end of the roll to slide in the second slide groove via the adapter block, while the locking block at the other end can be raised, allowing the roll to slide out of the gantry, making it convenient for workers to quickly replace the roll.

[0017] 2. By setting grooves on both sides of the gantry, when installing the rolls, it is only necessary to align the second slider and the adapter block with the two grooves and then push the rolls to reset them. There is no need to align the two rolls directly with the sides of the gantry, which reduces the workload of the workers. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the present invention;

[0020] Figure 3This is a cross-sectional view of the disassembly and assembly mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the servo motor installation of this utility model.

[0022] In the diagram: 100, gantry frame; 110, first slide rail; 111, locking block; 120, second slide rail; 200, disassembly and assembly mechanism; 210, first slider; 211, threaded rod; 212, adapter block; 213, telescopic block; 220, second slider; 230, servo motor; 240, electric push rod; 250, slide rail. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In practical implementation: such as Figure 1-4 As shown, a quick roll changing device for a calender includes: a gantry frame 100, rolls arranged between the gantry frames 100, and a first chute 110 and a second chute 120 respectively arranged on both sides of the gantry frame 100.

[0025] The disassembly and assembly mechanism 200 includes a first slider 210 and a second slider 220 respectively disposed at both ends of the roll. The first slider 210 is disposed in the first slide groove 110 and the second slider 220 is disposed in the second slide groove 120. A telescopic block 213 is slidably connected to the inner wall of one end of the roll.

[0026] A drive motor is fixedly connected to the side of the gantry frame 100 near the second slider 220. The drive end of the drive motor is also equipped with an adapter. One end of the roller is rotatably connected to the second slider 220. At the same time, the shape of one end of the roller matches the adapter, so that the adapter can be inserted into one end of the roller and the roller is driven to rotate by the drive motor.

[0027] like Figure 1 , Figure 2 and Figure 3As shown, the first slider 210 is rotatably connected to the telescopic block 213. The telescopic block 213 is circular and has multiple limiting blocks on its surface. A threaded rod 211 is provided between one end of the first slider 210 near the roller and the gantry 100. One end of the threaded rod 211 is rotatably connected to the inner wall of the roller, and the other end is fixedly connected to the adapter block 212 and is located inside the gantry 100. The telescopic block 213 is located on the surface of the threaded rod 211. The drive end of the servo motor 230 is inserted into the adapter block 212. A locking block 111 is slidably connected to the inner wall of the gantry 100 near the second slider 220. The locking block 111 is located above the second slide groove 120.

[0028] In this embodiment, the inner wall of the telescopic block 213 is provided with threads that mate with the threaded rod 211, and the second slider 220 is provided with a circular through hole, which is larger than the diameter of the threaded rod 211. The adapter block 212 consists of a circular block and a square block. The circular block is fixedly connected to the threaded rod 211. The drive end of the servo motor 230 is also provided with an adapter that mates with the adapter block 212. The adapter block 212 is inserted into the adapter, and the circular block is slidably connected to the second slider 220. It is located on the inner wall of the gantry frame 100. The drive end of the servo motor 230 penetrates into the gantry frame 100 and is inserted into the adapter block 212. When replacing the roll, after the roll is moved to the installation position, it is necessary to rotate the roll to drive the adapter of the second slider 220 and the adapter block 212 for adjustment, so that they are aligned with the adapter of the drive motor and the servo motor 230 for engagement.

[0029] like Figure 2 , Figure 3 and Figure 4 As shown, two slide rails 250 are fixedly connected to the surface of the gantry frame 100 near the first slider 210. A servo motor 230 is slidably connected between the two slide rails 250. An electric push rod 240 is fixedly connected to the surface of the gantry frame 100. One end of the servo motor 230 extends through one of the slide rails 250, and the drive end of the servo motor 230 is fixedly connected to the end of the servo motor 230 extending through the slide rail 250. Crossbars are provided on both sides of the servo motor 230. One crossbar is inserted into the slide rail 250 and slidably connected to the slide rail 250, while the other crossbar extends through the slide rail 250 and is fixedly connected to the electric push rod 240.

[0030] When using this invention, if it is necessary to disassemble the roll, first start the servo motor 230. The servo motor 230 drives the threaded rod 211 to rotate through the adapter block 212. The rotation of the threaded rod 211 drives the telescopic block 213 to move into the roll, and at the same time drives the first slider 210 to move. When the first slider 210 is disengaged from the gantry frame 100, the adapter block 212 and the threaded rod 211 are still located inside the gantry frame 100. Then start the electric push rod 240 to separate the servo motor 230 from the adapter. At this time, one end of the roll is in an active state on one side of the gantry frame 100. Then pull the locking block 111 of the other side of the gantry frame 100 upward to make the second slider 220 in an active state on the other side of the gantry frame 100. Then drag the roll outward to completely disengage it from the gantry frame 100.

[0031] After replacing the roll, align the two ends of the roll with the first groove 110 and the second groove 120 respectively, and then slide the roll toward the installation position. When it slides to the position of the locking block 111, the locking block 111 needs to be pulled upward. After the roll moves to the installation position, the electric push rod 240 drives the servo motor 230 to reset, so that the servo motor 230 is connected to the adapter block 212. Then start the servo motor 230 to rotate in the reverse direction, thereby driving the threaded rod 211 to rotate in the reverse direction, driving the telescopic block 213 and the first slider 210 to reset, so that the roll can work normally.

[0032] It should be noted that the threaded rod 211, servo motor 230 and electric push rod 240 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 servo motor 230 and electric push rod 240 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.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick roll changing device for a calender, characterized in that, include: A gantry frame (100) is provided with rollers between the gantry frames (100), and a first slide groove (110) and a second slide groove (120) are respectively provided on both sides of the gantry frame (100); The disassembly and assembly mechanism (200) includes a first slider (210) and a second slider (220) respectively disposed at both ends of the roll. The first slider (210) is disposed in a first groove (110), and the second slider (220) is disposed in a second groove (120). A telescopic block (213) is slidably connected to the inner wall of one end of the roll.

2. The quick roll changing device for a calender according to claim 1, characterized in that: The first slider (210) is rotatably connected to the telescopic block (213), which is circular and has multiple limiting blocks on its surface.

3. The quick roll changing device for a calender according to claim 1, characterized in that: A threaded rod (211) is provided between one end of the first slider (210) near the roll and the gantry (100). One end of the threaded rod (211) is rotatably connected to the inner wall of the roll, and the other end is fixedly connected to an adapter block (212) and located inside the gantry (100).

4. The quick roll changing device for a calender according to claim 1, characterized in that: Two slide rails (250) are fixedly connected to the side surface of the gantry frame (100) near the first slider (210), and a servo motor (230) is slidably connected between the two slide rails (250).

5. A quick roll changing device for a calender according to claim 4, characterized in that: An electric push rod (240) is fixedly connected to the surface of the gantry frame (100). One end of the servo motor (230) passes through one of the slide rails (250). The drive end of the servo motor (230) is fixedly connected to the end of the servo motor (230) that passes through the slide rail (250).

6. A quick roll changing device for a calender according to claim 5, characterized in that: The telescopic block (213) is disposed on the surface of the threaded rod (211), and the drive end of the servo motor (230) is inserted into the adapter block (212).

7. A quick roll changing device for a calender according to claim 1, characterized in that: A locking block (111) is slidably connected to the inner wall of the gantry frame (100) near the second slider (220), and the locking block (111) is located above the second slide groove (120).

Images