Roller temperature equalization device for a calender

Abstract

The utility model belongs to calender technical field, concretely relates to a calender's roller temperature equalizing device, including two symmetry setting main support rod, two main support rods between through two symmetry setting connecting rod link, two main support rod's both ends all clamped to a set of two two symmetry setting arc -shaped rod, two arc -shaped rod away from main support rod one end all clamped to a set of symmetry setting installation main body, and two groups of installation main body between being equipped with two symmetry setting roller, two roller between all be equipped with pitch adjusting main body, and pitch adjusting main body and installation main body matching setting, roller is hollow structure. The utility model can accurate adjustment roller temperature, eliminate local temperature difference, guarantee product quality, and the roller spacing adjustment is convenient and high in accuracy, is adapted to different processing demand, and the equipment stability is strong, can absorb vibration, avoids the component loose, is still favorable to the promotion production efficiency, and the structural design is reasonable, and practicality and reliability are good.

Description

Technical Field

[0001] This utility model belongs to the field of calendering technology, specifically relating to a roller temperature equalization device for a calendering machine. Background Technology

[0002] Calenders are core equipment in the processing of polymer materials such as plastics and rubber. They process materials into films or sheets of specific thicknesses through the extrusion and stretching action of rollers. During calendering, the temperature uniformity of the rollers directly affects the melting state, flowability, and physical properties of the final product (such as thickness uniformity and surface finish). This device aims to solve the problems of localized temperature differences in the rollers of existing calenders, complex roller spacing adjustment operations, and insufficient equipment stability. It is suitable for roller temperature control and spacing adjustment scenarios in various small and medium-sized calenders. In the calendering of polymer materials, the rollers need to maintain a stable and uniform temperature. If the temperature distribution is uneven, it can easily lead to localized over-melting or under-melting of the material, resulting in defects such as bubbles, wrinkles, and thickness deviations in the product. Existing calender roll temperature control devices mostly employ an integrated heating structure (such as heating strips wrapped around the outer wall of the roll). This type of structure makes it difficult to precisely adjust the temperature according to the different areas of the roll, especially leading to significant temperature differences between the ends and the middle of the roll. Furthermore, existing devices often rely on manual operation or a single drive mechanism for roll spacing adjustment, resulting in low accuracy, cumbersome operation, and an inability to quickly adapt to the processing requirements of products with varying thicknesses. In addition, some calenders use rigid connections for their support structures, which are prone to loosening due to vibration during operation, affecting roll stability and potentially shortening the equipment's lifespan. Therefore, there is an urgent need for a calender roll auxiliary device that combines temperature uniformity adjustment, convenient spacing adjustment, and stable support functions to improve product quality and production efficiency in calendering.

[0003] Existing rolling mill roller temperature control devices cannot achieve precise local temperature adjustment, which easily leads to excessive temperature differences between the two ends and the middle of the roller. Roller spacing adjustment is complex and has low precision, making it difficult to quickly adapt to the processing needs of products with different thicknesses. The equipment support structure lacks stability, and vibration during operation can easily cause components to loosen, affecting processing accuracy and equipment life. To address these issues, we propose a rolling mill roller temperature equalization device. Utility Model Content

[0004] The purpose of this invention is to provide a roller temperature equalization device for a calender, which can accurately adjust the roller temperature, eliminate local temperature differences, and ensure product quality; the roller spacing adjustment is convenient and highly accurate, adapting to different processing needs; the equipment has strong stability, can absorb vibration and prevent parts from loosening; it also helps to improve production efficiency, with a reasonable structural design and excellent practicality and reliability.

[0005] The specific technical solution adopted by this utility model is as follows: A roller temperature equalization device for a calender includes two symmetrically arranged main support rods connected by two symmetrically arranged connecting rods. Each end of one of the two main support rods is engaged with a set of symmetrically arranged arc-shaped rods. The ends of each arc-shaped rod away from the main support rods are engaged with a set of symmetrically arranged mounting bodies. Two symmetrically arranged rollers are positioned between the two mounting bodies. An adjustment body is positioned between each of the two rollers and is matched to the mounting bodies. The rollers are hollow, and a temperature equalization body is located inside each roller. Positioning rods matching the mounting bodies are provided on each of the two rollers.

[0006] In a preferred embodiment, the temperature equalization body includes two symmetrically arranged arc-shaped electric heating plates, both of which are matched with the inner wall of the roller. A hollow first mounting plate is provided between the two arc-shaped electric heating plates, and the first mounting plate is engaged with the inner wall of the roller. Two symmetrically arranged first sliding plates are slidably connected inside the first mounting plate, and the two first sliding plates pass through the two side walls of the first mounting plate and are engaged with the side walls of the two arc-shaped electric heating plates respectively. A first driver is provided inside the first mounting plate, and the output end of the first driver is engaged with a first gear. The opposite side wall of the two first sliding plates is provided with a first tooth groove that meshes with the first gear.

[0007] In a preferred embodiment, both sets of mounting bodies include two symmetrically arranged mounting discs, each mounting disc is provided with a second driver, and both second drivers are connected to the side wall of the roller via a rotating rod.

[0008] In a preferred embodiment, the adjusting body includes a hollow second mounting plate, within which two symmetrically arranged second sliding plates are slidably connected, and each of the two second sliding plates is engaged with a moving rod. The two moving rods are respectively engaged with the side walls of the two mounting plates. The side walls of the second mounting plate are provided with movable openings that match the two moving rods, and both moving rods are provided through the strip-shaped openings. The second mounting plate contains a power unit that matches the second sliding plates.

[0009] In a preferred embodiment, the power unit includes a third drive, the output end of which is engaged with a second gear, and the side wall of the second slide plate is provided with a second tooth groove that meshes with the second gear.

[0010] In a preferred embodiment, the bottom of both main support rods is provided with elastic anti-slip pads, and both connecting rods are made of elastic material.

[0011] The technical effects achieved by this utility model are as follows: Precise and efficient temperature regulation: Through the arc-shaped electric heating plate of the temperature equalization component and the gear-slide transmission structure, the positions of the two arc-shaped electric heating plates can be adjusted synchronously according to the temperature requirements of different areas of the roller, so as to achieve uniform heating of the inner wall of the roller, effectively eliminate local temperature differences, and improve the product processing quality. Convenient and precise roller spacing adjustment: The spacing adjustment component adopts a synchronous drive structure of gear-slide plate transmission. The distance between the two rollers can be quickly adjusted by only a third driver. The adjustment accuracy can reach ±0.01mm, which can meet the processing needs of products with different thicknesses. High equipment stability: The elastic anti-slip pads at the bottom of the main support rod work in conjunction with the elastic connecting rod to effectively absorb vibrations during equipment operation and prevent parts from loosening. At the same time, the snap-fit ​​structure between the arc-shaped rod and the mounting plate ensures the coaxiality of the rollers, further improving processing accuracy and equipment lifespan. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a roller temperature equalization device for a calender proposed in this utility model; Figure 2 This is a schematic diagram of the internal structure of the roller of a roller temperature equalization device for a calender proposed in this utility model; Figure 3 This is a schematic diagram of the interior of the second mounting plate of a roller temperature equalization device for a calender, as proposed in this utility model. Figure 4 for Figure 2 A schematic diagram at point A in the middle; Figure 5 for Figure 3 A schematic diagram at point B in the middle.

[0013] In the figure: 1 Main support rod, 2 Connecting rod, 3 Arc rod, 4 Roller, 5 Arc electric heating plate, 6 First mounting plate, 7 First sliding plate, 8 First driver, 9 First gear, 10 Positioning rod, 11 Mounting plate, 12 Second driver, 13 Second mounting plate, 14 Second sliding plate, 15 Moving rod, 16 Third driver, 17 Second gear, 18 Rotating rod. Detailed Implementation

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0016] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0017] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0018] Please see Figure 1-5 As shown, this utility model provides a roller temperature equalization device for a calender, including two symmetrically arranged main support rods 1, which are connected by two symmetrically arranged connecting rods 2. Both ends of the two main support rods 1 are clamped with a set of symmetrically arranged arc-shaped rods 3. The ends of the two arc-shaped rods 3 away from the main support rods 1 are clamped with a set of symmetrically arranged mounting bodies. Two symmetrically arranged rollers 4 are provided between the two sets of mounting bodies. An adjustment body is provided between the two rollers 4, and the adjustment body is matched with the mounting body. The rollers 4 have a hollow structure, and a temperature equalization body is provided inside the rollers 4. Positioning rods 10 that are matched with the mounting bodies are provided on both rollers 4.

[0019] The temperature equalization body includes two symmetrically arranged arc-shaped electric heating plates 5, and both arc-shaped electric heating plates 5 are matched with the inner wall of the roller 4. A hollow first mounting plate 6 is provided between the two arc-shaped electric heating plates 5, and the first mounting plate 6 is engaged with the inner wall of the roller 4. Two symmetrically arranged first sliding plates 7 are slidably connected inside the first mounting plate 6, and the two first sliding plates 7 pass through the two side walls of the first mounting plate 6 and are engaged with the side walls of the two arc-shaped electric heating plates 5 respectively. A first driver 8 is provided inside the first mounting plate 6, and a first gear 9 is engaged at the output end of the first driver 8. The opposite side wall of the two first sliding plates 7 is provided with a first tooth groove that meshes with the first gear 9.

[0020] Both sets of mounting bodies include two symmetrically arranged mounting plates 11. Each mounting plate 11 is equipped with a second driver 12, and both second drivers 12 are connected to the side wall of the roller 4 through a rotating rod 18.

[0021] The adjustable body includes a hollow second mounting plate 13. Two symmetrically arranged second sliding plates 14 are slidably connected inside the second mounting plate 13, and each of the two second sliding plates 14 is engaged with a moving rod 15. The two moving rods 15 are engaged with the side walls of the two mounting plates 11 respectively. The side walls of the second mounting plate 13 are provided with movable openings that match the two moving rods 15, and the two moving rods 15 are both provided through the strip-shaped openings. The second mounting plate 13 is provided with a power unit that matches the second sliding plates 14.

[0022] The power unit includes a third drive 16, the output end of which is engaged with a second gear 17, and the side wall of the second slide plate 14 is provided with a second tooth groove that meshes with the second gear 17.

[0023] Both main support rods 1 have elastic anti-slip pads at their bottoms, and both connecting rods 2 are made of elastic material.

[0024] In this invention, when external machinery detects that the temperature in a certain area of ​​roller 4 is too low, the first driver 8 is activated. The first driver 8 drives the first gear 9 to rotate. Through the meshing transmission of the gear and the tooth groove, the two first slide plates 7 are driven to slide in opposite directions, moving the arc-shaped electric heating plate 5 towards the area with low temperature, increasing the heating power in that area until the roller temperature is uniform. According to the product thickness requirements, the third driver 16 is activated. The third driver 16 drives the second gear 17 to rotate, driving the two second slide plates 14 to slide synchronously in opposite directions. Through the moving rod 15, the mounting plate 11 and roller 4 are moved to adjust the distance between the two rollers. After the adjustment is completed, the third driver 16 is turned off and the second driver 12 is activated. The second driver 12 drives the roller 4 to rotate through the rotating rod 18. At the same time, the temperature equalization component monitors and adjusts the roller temperature in real time. The elastic anti-slip pad and elastic connecting rod of the support component absorb the vibration of the equipment to ensure the stable operation of the roller.

[0025] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A roller temperature equalization device for a calender, characterized in that: It includes two symmetrically arranged main support rods (1), which are connected by two symmetrically arranged connecting rods (2). Both ends of the two main support rods (1) are clamped with a set of symmetrically arranged arc rods (3). The ends of the two arc rods (3) away from the main support rods (1) are clamped with a set of symmetrically arranged mounting bodies. There are two symmetrically arranged rollers (4) between the two sets of mounting bodies. There is an adjustment body between the two rollers (4), and the adjustment body is matched with the mounting body. The rollers (4) are hollow structures, and there is a temperature equalization body inside the rollers (4). There are positioning rods (10) on the two rollers (4) that are matched with the mounting bodies.

2. The roller temperature equalization device for a calender according to claim 1, characterized in that: The temperature equalization body includes two symmetrically arranged arc-shaped electric heating plates (5), and both arc-shaped electric heating plates (5) are matched with the inner wall of the roller (4). A hollow first mounting plate (6) is provided between the two arc-shaped electric heating plates (5), and the first mounting plate (6) is engaged with the inner wall of the roller (4). Two symmetrically arranged first sliding plates (7) are slidably connected inside the first mounting plate (6), and the two first sliding plates (7) pass through the two side walls of the first mounting plate (6) and are engaged with the side walls of the two arc-shaped electric heating plates (5). A first driver (8) is provided inside the first mounting plate (6), and a first gear (9) is engaged at the output end of the first driver (8). The opposite side walls of the two first sliding plates (7) are provided with first tooth grooves that mesh with the first gear (9).

3. The roller temperature equalization device for a calender according to claim 2, characterized in that: Both sets of mounting bodies include two symmetrically arranged mounting discs (11), each of the two mounting discs (11) is provided with a second driver (12), and both second drivers (12) are connected to the side wall of the roller (4) through a rotating rod (18).

4. The roller temperature equalization device for a calender according to claim 3, characterized in that: The adjustable body includes a hollow second mounting plate (13), in which two symmetrically arranged second sliding plates (14) are slidably connected, and each of the two second sliding plates (14) is fitted with a moving rod (15). The two moving rods (15) are respectively fitted with the side walls of the two mounting discs (11). The side wall of the second mounting plate (13) is provided with an active opening that matches the two moving rods (15), and the two moving rods (15) are both provided through the strip opening. The second mounting plate (13) is provided with a power body that matches the second sliding plate (14).

5. The roller temperature equalization device for a calender according to claim 4, characterized in that: The power unit includes a third driver (16), the output end of which is engaged with a second gear (17), and the side wall of the second slide plate (14) is provided with a second tooth groove that meshes with the second gear (17).

6. The roller temperature equalization device for a calender according to claim 5, characterized in that: Both main support rods (1) are provided with elastic anti-slip pads at their bottoms, and both connecting rods (2) are made of elastic material.

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