A precision seven-roll calender

Abstract

The utility model relates to a kind of precision seven-roller calendering equipment, belong to film calendering technical field.It includes host monument, multiple bearing seats are arranged in the host monument, each bearing seat has the freedom of transverse movement in host monument;It is characterized in that, it further includes multiple calendering rollers, the calendering roller is one-to-one corresponding with bearing seat, and calendering roller is installed on corresponding bearing seat;The main body of the host monument is a ring-shaped frame, multiple bearing seats are arranged horizontally and linearly in ring-shaped frame;Servo hydraulic cylinder is arranged between each adjacent bearing seat;The cylinder body and piston rod of servo hydraulic cylinder are respectively connected with the bearing seat of two sides.The utility model uses the host monument structure of ring-shaped frame, adds more roller transverse arrangement horizontal layout, while reducing the height of complete machine, increases the overall rigidity of equipment.

Description

Technical Field

[0001] This utility model relates to the field of thin film calendering technology, specifically to a precision seven-roll calendering device. Background Technology

[0002] Existing multi-roll calenders are mainly used in the papermaking industry. The equipment itself has poor precision and cannot meet the calendering requirements of films that are only a few micrometers thick. In addition, the rolls of existing multi-roll calenders are arranged vertically, and the overall height of the equipment is high, making operations such as threading the tape and changing the rolls difficult. Utility Model Content

[0003] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a precision seven-roll calendering equipment. It adopts a ring-frame main frame structure and a horizontal layout with multiple rollers arranged laterally, which reduces the overall height of the machine while increasing the overall rigidity of the equipment.

[0004] This utility model is achieved through the following technical solution:

[0005] A precision seven-roll calendering machine includes a main frame; the main frame is provided with multiple bearing seats, each bearing seat having a degree of freedom to move laterally within the main frame; it also includes multiple calendering rollers, each calendering roller corresponding to a bearing seat, and the calendering rollers are mounted on the corresponding bearing seats.

[0006] The main body of the main frame is a ring frame, with multiple bearing seats arranged horizontally in a straight line within the ring frame; a servo hydraulic cylinder is installed between each adjacent bearing seat; the cylinder body and piston rod of the servo hydraulic cylinder are respectively connected to the bearing seats on both sides.

[0007] Furthermore, it also includes a buffer roller assembly, which includes a rodless cylinder and a guide roller mounting plate; the annular frame of the main engine bracket is provided with a cylinder mounting plate; the cylinder body of the rodless cylinder is mounted on the cylinder mounting plate, and the guide roller mounting plate is fixedly mounted on the slider of the rodless cylinder; two guide rollers are mounted on the guide roller mounting plate.

[0008] Furthermore, it also includes needle roller assemblies, all of which are mounted on the main frame and are located between the bearing housing and the annular frame.

[0009] Furthermore, the needle roller assembly is divided into an upper needle roller assembly and a lower needle roller assembly;

[0010] The upper needle roller assembly includes a roller rolling block, a slide plate positioning plate, and a rolling block mounting plate; there are two slide plate positioning plates, and the rolling block mounting plate is located between the two slide plate positioning plates; the roller rolling block is mounted on the rolling block mounting plate; the slide plate positioning plate is bolted to the inner side of the top beam of the annular frame.

[0011] The lower needle roller assembly includes a lower needle roller frame, a linear motion roller assembly, and a lower needle roller base plate; the lower needle roller frame is bolted to the inner side of the bottom beam of the annular frame; the lower needle roller base plate is mounted on the lower needle roller frame, and the linear motion roller assembly is mounted on the lower needle roller base plate.

[0012] Furthermore, it also includes a ejector pin that penetrates the top beam of the annular frame; the inner end of the ejector pin abuts against the top of the rolling block mounting plate in the upper needle roller assembly.

[0013] Furthermore, each calendering roller is equipped with an upper needle roller assembly at the top and a lower needle roller assembly at the bottom.

[0014] Furthermore, the cylinder mounting plate is also equipped with a belt sprocket connected to its bearing.

[0015] Furthermore, a second servo hydraulic cylinder is provided on the inner side of the side beam of the annular frame; the cylinder barrel of the second servo hydraulic cylinder is fixedly installed on the side beam, and the piston rod is installed on the bearing seat at the end.

[0016] Furthermore, a baffle assembly is provided on the outer side of the annular frame; each bearing seat corresponds to two baffle assemblies; the bearing seat is located between two baffle assemblies; the baffle assembly includes a stop block and a cam bearing mounted on the stop block; the cam bearing abuts against the bearing seat.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Add a buffer roller between each calendering cycle to counteract the effect of inconsistent speeds of the calendering rollers during acceleration and deceleration on the belt.

[0019] 2. The main machine adopts a ring-shaped frame structure with a horizontal layout of multiple rollers arranged laterally, which reduces the overall height of the machine while increasing the overall rigidity of the equipment.

[0020] 3. Four small servo hydraulic cylinders are used between the bearing housings to adjust the gap between the calendering rollers and the pressure between the rollers.

[0021] 4. Add needle roller assemblies to the upper and lower parts of the bearing housing to reduce the frictional resistance during the movement of the bearing housing while ensuring the accuracy of horizontal movement. Attached Figure Description

[0022] Figure 1 This is a structural diagram of an embodiment of the present utility model;

[0023] Figure 2 yes Figure 1 Schematic diagram of the intermediate buffer roller assembly;

[0024] Figure 3 yes Figure 1 Schematic diagram of the middle and lower needle roller assembly;

[0025] Figure 4 yes Figure 1 Schematic diagram of the upper and middle needle roller assembly;

[0026] Figure 5 yes Figure 1 A schematic diagram showing the connection between the main machine frame and the small calendering roller;

[0027] Figure 6 yes Figure 5 Enlarged view of part of the image.

[0028] In the diagram: 1-Preheating roller assembly, 2-Large calendering roller, 3-Large bearing housing, 4-Small servo hydraulic cylinder, 5-Buffer roller assembly, 6-Main machine stand, 7-Small bearing housing, 8-Small calendering roller, 9-Lower needle roller assembly, 10-Upper needle roller assembly, 11-Ejector pin, 12-Large servo hydraulic cylinder. 13-Drive motor, 14-Baffle assembly, 51-Rodless cylinder, 52-Cylinder mounting plate, 53-Belt sprocket, 54-Guide roller mounting plate, 55-Guide roller; 91-Lower needle roller frame, 92-Linear motion rollers, 93-Lower needle roller base plate; 101-Slide plate positioning plate, 102-Roller block, 103-Roller block mounting plate, 141-Stop block, 142-Cam bearing. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0030] Reference Figures 1 to 6 In this embodiment, there are two parallel main unit arches. Each main unit arch is equipped with seven bearing seats, and each bearing seat can move freely laterally within its corresponding main unit arch. The seven bearing seats within the same main unit arch are arranged in a straight line along the horizontal direction. From left to right, the first and seventh bearing seats are large bearing seats, which can play a certain role in positioning, while the remaining bearing seats are small bearing seats.

[0031] There are seven calendering rollers, two of which are connected to bearing seats inside the two main machine stands. The calendering rollers and bearing seats correspond, with the larger calendering roller corresponding to the larger bearing seat and the smaller calendering roller corresponding to the smaller bearing seat. The drive motor that rotates the calendering rollers is mounted on one of the main machine stands. The output end of the drive motor is connected to the input end of the calendering roller.

[0032] Within the same main unit frame, there are seven bearing seats in the annular frame. A small servo hydraulic cylinder is installed between each adjacent bearing seat. The cylinder body and piston rod of the small servo hydraulic cylinder are connected to the bearing seats on both sides, respectively. A large servo hydraulic cylinder is also installed on the inner side of the side beam of the annular frame. The cylinder barrel of the large servo hydraulic cylinder is fixedly installed on the side beam, and the piston rod is installed on the seventh bearing seat.

[0033] Two baffle assemblies are provided on both sides of each bearing housing; the bearing housing is located between the two baffle assemblies; each baffle assembly includes a stop block and a cam bearing mounted on the stop block; the cam bearing abuts against the bearing housing. The stop block has an elongated hole, and the stop block is connected to the annular frame by bolts located in the elongated hole.

[0034] To facilitate the movement of the bearing housing within the annular frame, a needle roller assembly is installed within the annular frame; the needle roller assembly is divided into an upper needle roller assembly and a lower needle roller assembly.

[0035] The upper needle roller assembly includes roller rolling blocks, a slide plate positioning plate, and a rolling block mounting plate; two slide plate positioning plates are provided, and the rolling block mounting plate is located between the two slide plate positioning plates; the roller rolling blocks are mounted on the rolling block mounting plate; the slide plate positioning plate is bolted to the inner side of the top beam of the annular frame.

[0036] The lower needle roller assembly includes a lower needle roller frame, a linear motion roller array, and a lower needle roller base plate; the lower needle roller frame is bolted to the inner side of the bottom beam of the annular frame; the lower needle roller base plate is mounted on the lower needle roller frame, and the linear motion roller array is mounted on the lower needle roller base plate.

[0037] The bearing housing is installed between the upper and lower needle roller assemblies and is driven to move by a small servo hydraulic cylinder.

[0038] A through-hole ejector pin is installed on the top beam of the annular frame; the ejector pin is threaded to the top beam, and its inner end abuts against the top of the rolling block mounting plate in the upper needle roller assembly. The ejector pin reduces the clearance between the upper needle roller assembly and the bearing housing.

[0039] The linear motion rollers and roller blocks in this embodiment are specifically referred to... Figure 3 and Figure 4 The linear motion rollers consist of multiple rollers mounted on the bottom plate of the lower needle rollers. Each roller has a degree of freedom to rotate around itself via a pin. The rollers of the roller rolling block have grooves on their rolling blocks, and multiple rollers are installed in the grooves. Each roller has a degree of freedom to rotate around itself via a pin.

[0040] This embodiment also provides a buffer roller assembly, which includes a rodless cylinder and a guide roller mounting plate. A cylinder mounting plate is provided on the annular frame of the main unit's frame. The cylinder body of the rodless cylinder is mounted on the cylinder mounting plate, and the guide roller mounting plate is fixedly mounted on the slider of the rodless cylinder. Two guide rollers are mounted on the guide roller mounting plate. The buffer roller assembly has a total of five sets. In this embodiment, a belt-threading sprocket connected to its bearing is also mounted on the cylinder mounting plate; the belt-threading sprocket facilitates belt feeding.

[0041] The following is a principle explanation of this embodiment:

[0042] After entering the seven-roll calender, thin film materials will undergo six consecutive hot roll presses along the conveyor belt path to complete the calendering process.

[0043] Five buffer roller assemblies are distributed between the six roller pressing cycles. They serve to buffer the belt when the speed of the calendering rollers is inconsistent due to starting or speed change.

[0044] In pressure mode, the main cylinder applies a reference force, and the four small servo hydraulic cylinders between each roll gap adjust the magnitude of the applied force according to the required inter-roll pressure for each roll gap.

[0045] In roll gap mode, the displacement gauges built into the four small servo hydraulic cylinders adjust the roll gap to micron-level precision.

[0046] In actual operation, the set screws installed on the archway will tighten the upper needle roller assembly, so that there is zero gap between the bearing housing and the upper and lower needle roller assemblies, ensuring smooth left and right movement while preventing up and down tilting.

[0047] The machine adopts a structure with large calendering rollers at both ends and five small calendering rollers in the middle. This structure minimizes the overall size of the machine while ensuring that the calendering rollers do not undergo large deflection deformation during the pressing process.

[0048] It should be noted that the above description is merely a preferred application example of this utility model and is not intended to limit the scope of protection of this utility model. All technical solutions employing equivalent substitutions or equivalent transformations are within the scope of protection of this utility model.

Claims

1. A precision seven-roll calendering machine, comprising a main frame; wherein the main frame is provided with a plurality of bearing seats, each bearing seat having a degree of freedom to move laterally within the main frame; characterized in that, It also includes multiple calendering rollers, each of which corresponds to a bearing housing and is mounted on the corresponding bearing housing. The main body of the main frame is a ring frame, with multiple bearing seats arranged horizontally in a straight line within the ring frame; a servo hydraulic cylinder is installed between each adjacent bearing seat; the cylinder body and piston rod of the servo hydraulic cylinder are respectively connected to the bearing seats on both sides.

2. The precision seven-roll calendering equipment according to claim 1, characterized in that, It also includes a buffer roller assembly, which includes a rodless cylinder and a guide roller mounting plate; the annular frame of the main unit is provided with a cylinder mounting plate; the cylinder body of the rodless cylinder is mounted on the cylinder mounting plate, and the guide roller mounting plate is fixedly mounted on the slider of the rodless cylinder; two guide rollers are mounted on the guide roller mounting plate.

3. The precision seven-roll calendering equipment according to claim 1, characterized in that, It also includes needle roller assemblies, all of which are mounted on the main frame and are located between the bearing housing and the annular frame.

4. The precision seven-roll calendering equipment according to claim 3, characterized in that, The needle roller assembly is divided into an upper needle roller assembly and a lower needle roller assembly; The upper needle roller assembly includes a roller rolling block, a slide plate positioning plate, and a rolling block mounting plate; two slide plate positioning plates are provided, and the rolling block mounting plate is located between the two slide plate positioning plates; the roller rolling block is mounted on the rolling block mounting plate; the slide plate positioning plate is bolted to the inner side of the top beam of the annular frame. The lower needle roller assembly includes a lower needle roller frame, a linear motion roller assembly, and a lower needle roller base plate; the lower needle roller frame is bolted to the inner side of the bottom beam of the annular frame; the lower needle roller base plate is mounted on the lower needle roller frame, and the linear motion roller assembly is mounted on the lower needle roller base plate.

5. A precision seven-roll calendering device according to claim 4, characterized in that, It also includes a ejector pin that passes through the top beam of the annular frame; the inner end of the ejector pin abuts against the top of the rolling block mounting plate in the upper needle roller assembly.

6. A precision seven-roll calendering device according to claim 4, characterized in that, Each bearing housing has an upper needle roller assembly on top and a lower needle roller assembly on the bottom.

7. A precision seven-roll calendering device according to claim 2, characterized in that, The cylinder mounting plate is also equipped with a belt sprocket connected to its bearing.

8. A precision seven-roll calendering device according to claim 1, characterized in that, The inner side of the side beam of the annular frame is also provided with a second servo hydraulic cylinder; the cylinder barrel of the second servo hydraulic cylinder is fixedly installed on the side beam, and the piston rod is installed on the bearing seat at the end.

9. A precision seven-roll calendering device according to claim 1, characterized in that, The outer side of the annular frame is provided with a baffle assembly; each bearing seat corresponds to two baffle assemblies; the bearing seat is located between two baffle assemblies; the baffle assembly includes a stop block and a cam bearing mounted on the stop block; the cam bearing abuts against the bearing seat.

Images