A calender for producing PVC flooring sheets

Abstract

This utility model discloses a calender for producing PVC flooring sheets, including a base with support seats fixedly connected to both the left and right sides of the bottom of the base. By setting up a fixing mechanism, when the calender needs to be disassembled for transport, turning the handle drives the screw to rotate. Since the moving plate is threadedly connected to the screw and slidably sleeved on the crossbar, the moving plate moves backward along the crossbar under the rotation of the screw, causing the second limiting block to disengage from the second limiting groove. Then, the frame is pulled upward, thereby removing the first limiting block from the first limiting groove, thus achieving the separation of the frame and the base. This effectively reduces the size of the calender, facilitates transportation, and is simple and convenient to operate, greatly improving the transportation convenience and installation efficiency of the calender.

Description

Technical Field

[0001] This utility model relates to the technical field of PVC sheet production equipment, specifically a calender for producing PVC flooring sheets. Background Technology

[0002] In the production of PVC sheets, calenders are required for deep processing. A calender consists of two or more rollers arranged in a certain way. It can be divided into cold calenders and hot calenders. Calenders can also be classified into two-roll, three-roll, four-roll, and five-roll calenders according to the number of rollers.

[0003] A search revealed patent application number CN202120029893.8, which discloses an easy-to-maintain calender for processing PVC rolls. The calender includes a base, a support frame fixedly mounted on the top of the base, a cleaning plate fixedly mounted on the top of the inner wall of the support frame, a first calendering roller and a second calendering roller movably connected to the middle and bottom of the inner wall of the support frame, respectively, and a forward servo motor and a reverse servo motor fixedly mounted on the middle and bottom of one side of the support frame, respectively. In practical use, this calender suffers from a large size and inconvenient disassembly. During equipment transportation, its excessive size occupies significant transport space, increasing transportation costs; and the difficulty in disassembly makes it difficult to properly disassemble the equipment before transportation, hindering the reduction of transport volume and causing significant inconvenience to transportation operations, thus impeding the handling and transfer of the equipment. Therefore, we propose a calender for PVC flooring production. Utility Model Content

[0004] The purpose of this invention is to provide a calender for the production of PVC flooring sheets, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a calender for producing PVC flooring sheets, comprising a base, with support seats fixedly connected to the left and right sides of the bottom of the base, and a frame movably connected to the top of the base. Two servo motors are fixedly connected to the left side of the frame, and a rotating shaft is fixedly connected to the output end of each servo motor. The right end of the rotating shaft passes through the frame and extends to the inner side of the frame. The rotating shaft is movably connected to the frame, and a calendering roller is fixedly sleeved on the surface of the rotating shaft. The right end of the rotating shaft is rotatably connected to the right side of the inner wall of the frame through a bearing. The frame and the base are connected by a fixing mechanism.

[0006] Furthermore, the fixing mechanism includes a first fixing block, a first limiting groove, a first limiting block, a second fixing block, a second limiting groove, a second limiting block, a fixing frame, a screw, a handle, a crossbar, and a moving plate. Two symmetrically arranged first fixing blocks are fixedly connected to the rear side of the frame.

[0007] Furthermore, a first limiting groove is provided at the bottom of the first fixing block, and a first limiting block is movably engaged inside the first limiting groove. The bottom of the first limiting block passes through the first limiting groove and extends to the outside of the first limiting groove and is fixedly connected to the top of the base.

[0008] Furthermore, two symmetrically arranged second fixing blocks are fixedly connected to the top front side of the base, and a second limiting groove is opened on the rear side of the second fixing block, and the second limiting block is movably engaged inside the second limiting groove.

[0009] Furthermore, the rear side of the second limiting block penetrates through the second limiting groove and extends to the outside of the second limiting groove. Fixed frames are fixedly connected to the bottom of both the left and right sides of the frame, and a screw is rotatably connected to the front side of the inner wall of the fixed frame through a bearing.

[0010] Furthermore, the rear end of the screw passes through the fixing frame and extends to the outside of the fixing frame, and is fixedly connected to a handle. The screw is movably connected to the fixing frame, and the front and rear sides of the inner wall of the fixing frame are fixedly connected by a crossbar.

[0011] Furthermore, a movable plate is threadedly connected to the front of the screw surface. The movable plate is slidably sleeved on the crossbar. The movable plate is movably connected to the fixed frame. The front side of the movable plate is fixedly connected to the rear side of the second fixed block.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention, through the setting of a fixing mechanism, allows for easy disassembly and transportation of the calender. Turning the handle rotates the screw, causing it to rotate. Since the moving plate is threadedly connected to the screw and slidably mounted on the crossbar, the moving plate moves backward along the crossbar under the screw's rotation. This causes the second limiting block to disengage from the second limiting groove, pulling the frame upward and removing the first limiting block from the first limiting groove. This achieves separation of the frame and base, effectively reducing the size of the calender and facilitating transportation. During installation, the first limiting block is inserted into the first limiting groove, the second limiting block is aligned with the second limiting groove, and the handle is turned in the opposite direction, causing the moving plate to engage the second limiting block in the second limiting groove. This allows for quick and easy installation, significantly improving the transportation convenience and installation efficiency of the calender. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model;

[0015] Figure 2 This is a side view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the frame structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the base of this utility model;

[0018] Figure 5 This is a schematic diagram of the frame structure from another perspective of the present invention;

[0019] Figure 6 This is a structural schematic diagram of the fixing frame of this utility model.

[0020] In the diagram: 1. Base; 2. Support seat; 3. Frame; 4. Servo motor; 5. Calendering roll; 6. Fixing mechanism; 601. First fixing block; 602. First limiting groove; 603. First limiting block; 604. Second fixing block; 605. Second limiting groove; 606. Second limiting block; 607. Fixing frame; 608. Screw; 609. Handle; 610. Crossbar; 611. Moving plate. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] Please see Figure 1-6A calender for producing PVC flooring includes a base 1. Support seats 2 are fixedly connected to the left and right sides of the bottom of the base 1. The support seats 2 are made of high-strength metal and are precision machined to ensure stability and load-bearing capacity in contact with the ground, providing a solid and reliable foundation for the entire calender. A frame 3 is movably connected to the top of the base 1. Two servo motors 4 are fixedly connected to the left side of the frame 3. A rotating shaft is fixedly connected to the output end of each servo motor 4. The right end of the rotating shaft passes through the frame 3 and extends to the inside of the frame 3. The rotating shaft is movably connected to the frame 3. A calendering roller 5 is fixedly fitted onto the surface of the rotating shaft. The outer surface of the calendering roller 5 undergoes special surface treatment processes, such as chrome plating and polishing, to improve its surface hardness, wear resistance, and smoothness, thereby ensuring good surface quality and dimensional accuracy of the PVC flooring during the calendering process. The right end of the rotating shaft is rotatably connected to the right side of the inner wall of the frame 3 via a bearing. The frame 3 and the base 1 are connected by a fixing mechanism 6.

[0024] The fixing mechanism 6 includes a first fixing block 601, a first limiting groove 602, a first limiting block 603, a second fixing block 604, a second limiting groove 605, a second limiting block 606, a fixing frame 607, a screw 608, a handle 609, a crossbar 610, and a moving plate 611. Two symmetrically arranged first fixing blocks 601 are fixedly connected to the rear side of the frame 3. The first fixing blocks 601 are made of high-strength alloy material, and the bottom of the first fixing blocks 601 is provided with a first limiting groove 602.

[0025] The first limiting groove 602 is movably engaged with the first limiting block 603. The bottom of the first limiting block 603 passes through the first limiting groove 602 and extends to the outside of the first limiting groove 602 and is fixedly connected to the top of the base 1.

[0026] Two symmetrically arranged second fixing blocks 604 are fixedly connected to the top front side of the base 1. A second limiting groove 605 is provided on the rear side of the second fixing block 604. A second limiting block 606 is movably engaged inside the second limiting groove 605.

[0027] In practice, the rear side of the second limiting block 606 passes through the second limiting groove 605 and extends to the outside of the second limiting groove 605. The bottom of both the left and right sides of the frame 3 are fixedly connected to the fixing frame 607. The front side of the inner wall of the fixing frame 607 is rotatably connected to the screw 608 through the bearing.

[0028] Specifically, the rear end of the screw 608 passes through the fixing frame 607 and extends to the outside of the fixing frame 607 and is fixedly connected to the handle 609. The screw 608 and the fixing frame 607 are movably connected, and the front and rear sides of the inner wall of the fixing frame 607 are fixedly connected by a crossbar 610.

[0029] In specific implementation, a movable plate 611 is threadedly connected to the front of the screw 608. The movable plate 611 is slidably sleeved on the crossbar 610. The movable plate 611 is movably connected to the fixed frame 607. The front side of the movable plate 611 is fixedly connected to the rear side of the second fixed block 604.

[0030] In practical applications: When the calender needs to be disassembled and transported, the operator turns the handle 609, which drives the screw 608 to rotate. Since the moving plate 611 is threadedly connected to the screw 608 and slidably sleeved on the crossbar 610, according to the principle of threaded transmission, the moving plate 611 will move backward along the crossbar 610 under the rotation of the screw 608, thereby causing the second limiting block 606 to disengage from the second limiting groove 605. Then, the frame 3 is pulled upward, thereby causing the first limiting block 603 to be removed from the first limiting groove 602. This achieves the separation of the frame 3 from the base 1, effectively reducing the size of the calender and facilitating transportation. When the machine is transported to its destination and needs to be installed, the first limiting block 603 is inserted into the first limiting groove 602, so that the second limiting block 606 is aligned with the second limiting groove 605. Then, the handle 609 is rotated in the opposite direction, the screw 608 rotates in the opposite direction, and the moving plate 611 drives the second limiting block 606 to move forward and lock into the second limiting groove 605. This quickly completes the fixed installation of the frame 3 and the base 1. The whole process is simple and convenient to operate, which greatly improves the transportation convenience and installation efficiency of the calender.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A calender for PVC floor board production, comprising a base (1), characterized in that: The bottom left and right sides of the base (1) are fixedly connected to support seats (2), the top of the base (1) is movably connected to a frame (3), the left side of the frame (3) is fixedly connected to two servo motors (4), the output end of the servo motor (4) is fixedly connected to a rotating shaft, the right end of the rotating shaft passes through the frame (3) and extends to the inner side of the frame (3), the rotating shaft is movably connected to the frame (3), the surface of the rotating shaft is fixedly fitted with a calendering roller (5), the right end of the rotating shaft is rotatably connected to the right side of the inner wall of the frame (3) through a bearing, and the frame (3) and the base (1) are connected by a fixing mechanism (6). The fixing mechanism (6) includes a first fixing block (601), a first limiting groove (602), a first limiting block (603), a second fixing block (604), a second limiting groove (605), a second limiting block (606), a fixing frame (607), a screw (608), a handle (609), a crossbar (610), and a moving plate (611). The rear side of the frame (3) is fixedly connected to two symmetrically arranged first fixing blocks (601). The bottom of the first fixing block (601) is provided with a first limiting groove (602), and the first limiting block (603) is movably engaged inside the first limiting groove (602). The bottom of the first limiting block (603) passes through the first limiting groove (602) and extends to the outside of the first limiting groove (602) and is fixedly connected to the top of the base (1). The base (1) has two symmetrically arranged second fixing blocks (604) fixedly connected to the top front side. The second fixing block (604) has a second limiting groove (605) on the rear side. The second limiting groove (605) is movably engaged with the second limiting block (606). The rear side of the second limiting block (606) passes through the second limiting groove (605) and extends to the outside of the second limiting groove (605). The bottom of the left and right sides of the frame (3) are fixedly connected to the fixing frame (607). The front side of the inner wall of the fixing frame (607) is rotatably connected to the screw (608) through the bearing. The rear end of the screw (608) passes through the fixing frame (607) and extends to the outside of the fixing frame (607) and is fixedly connected to a handle (609). The screw (608) and the fixing frame (607) are movably connected. The front and rear sides of the inner wall of the fixing frame (607) are fixedly connected by a crossbar (610). A movable plate (611) is threadedly connected to the front of the screw (608). The movable plate (611) is slidably sleeved on the crossbar (610). The movable plate (611) is movably connected to the fixed frame (607). The front side of the movable plate (611) is fixedly connected to the rear side of the second fixed block (604).

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