EVA calendering device

Abstract

The utility model discloses a kind of EVA calendering device, the EVA calendering device includes: mounting seat, calendering mechanism, guide mechanism and adjusting mechanism;Calendering mechanism is set in the inside of mounting seat;The input end and the output end of guide mechanism corresponding calendering mechanism are respectively set in the both sides of mounting seat;Adjusting mechanism is set in the top of mounting seat, and the adjusting end of adjusting mechanism is connected with calendering mechanism cooperation;Calendering mechanism includes first press roll and second press roll, first press roll is set in the bottom of mounting seat, second press roll is movably connected to the top of mounting seat with the both ends of first press roll cooperation, adjusting mechanism includes two drive assemblies, two drive assemblies are respectively set in the both ends of mounting seat top with the both ends of second press roll corresponding, and the driving end of each drive assembly is abutted to the corresponding end of second press roll.The EVA calendering device of the utility model can realize the adjustment control of calendering degree and thickness by adjusting component adjusting the relative position between second press roll and first press roll.

Description

Technical Field

[0001] This utility model relates to the field of calendering equipment technology, and in particular to an EVA calendering equipment. Background Technology

[0002] In the processing of EVA (ethylene-vinyl acetate copolymer) materials, corresponding calendering equipment is required to calender the EVA to obtain EVA products of predetermined dimensions, shapes, or flatness. Among these, the EVA calendering unit is a key piece of equipment for processing EVA materials, mainly used to produce films, sheets, or composites with other materials to obtain products such as photovoltaic films, shoe materials, and packaging materials. Existing EVA calendering equipment typically employs multi-axis rolling devices, usually with a three- or four-roll structure. The rollers utilize high-precision machining technology to ensure surface smoothness and geometric accuracy, avoiding surface defects. Simultaneously, the rollers are equipped with precise heating / cooling systems (such as heat transfer oil or electric heating), with temperature control accuracy reaching ±1℃, adapting to the temperature sensitivity of EVA during processing. Furthermore, the roller spacing can be flexibly adjusted to meet different thickness processing requirements, enabling the production of products with varying thicknesses.

[0003] However, the thickness adjustment mechanism of existing EVA calendering equipment is usually a complex adjustment mechanism based on large equipment, which has high setup, application and subsequent maintenance costs. At the same time, the control accuracy capability is redundant and it is not suitable for calendering processing for EVA material performance testing in the laboratory stage. Utility Model Content

[0004] Therefore, it is necessary to provide an EVA calendering device to address the technical problems of complex thickness control structure and high application cost of existing EVA calendering equipment.

[0005] An EVA calendering apparatus includes a mounting base, a calendering mechanism, a guiding mechanism, and an adjusting mechanism, all of which are mounted on the mounting base. The calendering mechanism is located inside the mounting base. The guiding mechanism is located on both sides of the mounting base, corresponding to the input and output ends of the calendering mechanism. The adjusting mechanism is located on the top of the mounting base, and its adjusting end is connected to the calendering mechanism.

[0006] The calendering mechanism includes a first pressure roller and a second pressure roller. The first pressure roller is disposed at the bottom of the mounting base, and the second pressure roller is movably connected to the top of the mounting base at both ends in cooperation with the first pressure roller, so that the second pressure roller can be adjusted up and down along the height direction of the mounting base. Correspondingly, the adjustment mechanism includes two drive components, wherein the two drive components are respectively disposed at both ends of the top of the mounting base corresponding to the two ends of the second pressure roller, and the drive end of each drive component abuts against the corresponding end of the second pressure roller.

[0007] In one embodiment, the two ends of the second pressure roller are connected to the mounting base via a lifting seat, and the two ends of the second pressure roller are rotatably connected to the two lifting seats.

[0008] In one embodiment, each of the above-described drive components includes a fixed block, a connecting shaft, an elastic element, a baffle, and a drive shaft. The fixed block is disposed on the top of the corresponding end of the mounting base; the connecting shaft slides through the fixed block and connects to the lifting seat at the corresponding end; the elastic element is disposed on the opposite side of the fixed block relative to the lifting seat, and the elastic element is sleeved on the outer periphery of the connecting shaft; the baffle is connected to the top end of the connecting shaft, and the bottom surface of the baffle abuts against the top end of the elastic element; the drive shaft passes through the top plate and the fixed block sequentially from the top side of the baffle, and then abuts against the lifting seat.

[0009] In one embodiment, each of the above-described drive components includes two connecting shafts, which are respectively disposed on both sides of the drive shaft, and the bottom ends of the two connecting shafts are connected to the lifting seat, and the top ends of the two connecting shafts are connected to the baffle.

[0010] In one embodiment, each of the above-mentioned drive components includes two elastic members, which are respectively sleeved onto two connecting shafts, and the bottom ends of the two elastic members abut against the fixed seat, and the top ends of the two elastic members abut against the baffle.

[0011] In one embodiment, each of the above-described drive components further includes a locking element, with the top end of the drive shaft extending through to the top side of the baffle and threadedly engaging with the locking element.

[0012] In one embodiment, the mounting base is provided with lateral limiting structures at both ends of the first pressure roller and the second pressure roller, respectively.

[0013] In one embodiment, the above-mentioned guiding mechanism is configured as two sets, with the two guiding mechanisms respectively located on the feeding side of the calendering mechanism and the discharging side of the calendering mechanism.

[0014] In one embodiment, each of the above-mentioned guiding mechanisms includes two adjusting plates, a mounting plate, and a guide plate. The two adjusting plates are respectively disposed at both ends of the same side surface of the mounting base corresponding to the two ends of the first pressure roller. The mounting plate is disposed in the same direction as the first pressure roller, and both ends of the mounting plate are movably connected to the two adjusting plates. One side of the guide plate is connected to the mounting plate, and the other side extends toward the material passage space between the first pressure roller and the second pressure roller.

[0015] In one embodiment, each of the above-described guide mechanisms further includes a lateral limiting block that slides onto the mounting plate along the horizontal extension direction of the mounting plate.

[0016] The aforementioned EVA calendering device, through a guiding mechanism, coordinates with the calendering mechanism to guide the EVA sheet to be calendered to the input end of the calendering mechanism in real time, while simultaneously exporting the calendered EVA sheet from the output end of the calendering mechanism. This prevents slippage of the EVA sheet due to poor conveying, reduced calendering accuracy, or even repeated entanglement into the calendering mechanism, which could damage the product or equipment. An adjustment mechanism can also be used to adjust the calendering force of the calendering mechanism, thereby controlling the calendering thickness of the EVA sheet. Specifically, the two ends of the second pressure roller are movably connected to the top of the mounting base, allowing the second pressure roller to be adjusted up and down along the height of the mounting base. Correspondingly, the driving end of each drive component abuts against the corresponding end of the second pressure roller, enabling the drive component to drive and limit the setting height of the second pressure roller relative to the mounting base. Based on the above configuration, the EVA calendering device of this invention can adjust and control the calendering force and thickness by adjusting the relative position of the second pressure roller and the first pressure roller through the adjustment component. The drive component can drive the second pressure roller to move up and down while limiting its height range. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the EVA calendering apparatus in one embodiment;

[0018] Figure 2 for Figure 1 A schematic diagram of the EVA calendering apparatus from another perspective in the illustrated embodiment. Detailed Implementation

[0019] To make the above-mentioned objects, 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. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0021] 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] Please see Figures 1 to 2This utility model discloses an EVA calendering apparatus 1, which includes a mounting base 10, a calendering mechanism 20, a guiding mechanism 30, and an adjusting mechanism 40. The calendering mechanism 20, the guiding mechanism 30, and the adjusting mechanism 40 are all mounted on the mounting base 10. The calendering mechanism 20 is disposed inside the mounting base 10. The guiding mechanism 30 is disposed on both sides of the mounting base 10, corresponding to the input and output ends of the calendering mechanism 20. The adjusting mechanism 40 is disposed on the top of the mounting base 10, and its adjusting end is connected to the calendering mechanism 20. Thus, the calendering... Mechanism 20 can perform calendering processing on the passing EVA sheet based on mounting base 10. During this process, guiding mechanism 30 can work with calendering mechanism 20 to guide the EVA sheet to be calendered to the input end of calendering mechanism 20 in real time, and at the same time, export the calendered EVA sheet from the output end of calendering mechanism 20, so as to prevent the EVA sheet from slipping, reducing the calendering accuracy, or even being repeatedly wound into calendering mechanism 20 due to poor conveying, thus damaging the product or equipment. Adjustment mechanism 40 is used to adjust the calendering force of calendering mechanism 20, thereby achieving the purpose of controlling the calendering thickness of EVA sheet. Specifically, the calendering mechanism 20 includes a first pressure roller 21 and a second pressure roller 22. The first pressure roller 21 is disposed at the bottom of the mounting base 10, and the two ends of the second pressure roller 22 are movably connected to the top of the mounting base 10 in conjunction with the two ends of the first pressure roller 21, thereby allowing the second pressure roller 22 to be adjusted up and down along the height direction of the mounting base 10. Correspondingly, the adjustment mechanism 40 includes two drive components, wherein the two drive components are respectively disposed at the two ends of the top of the mounting base 10 corresponding to the two ends of the second pressure roller 22, and the drive end of each drive component abuts against the corresponding end of the second pressure roller 22, thereby allowing the drive components to drive and limit the setting height of the second pressure roller 22 relative to the mounting base 10. Based on the above configuration, the EVA calendering device 1 of this utility model can adjust and control the calendering force and thickness by adjusting the relative position between the second pressure roller 22 and the first pressure roller 21 through the adjustment components. The drive components can drive the second pressure roller 22 to move up and down, while limiting the height range of the second pressure roller 22.

[0026] Furthermore, the two ends of the second pressure roller 22 are connected to the mounting base 10 through a lifting seat 221, so that the second pressure roller 22 can move up and down relative to the mounting base 10 through the lifting seats 221 at both ends. At the same time, the two ends of the second pressure roller 22 are rotatably connected to the two lifting seats 221 to realize the rotation function of the second pressure roller 22 relative to the mounting base 10.

[0027] Furthermore, each drive assembly includes a fixing block 41, a connecting shaft 42, an elastic element 43, a baffle 44, and a drive shaft 45. The fixing block 41 is disposed on the top of the corresponding end of the mounting base 10; the connecting shaft 42 slides through the fixing block 41 and is connected to the lifting seat 221 at the corresponding end; the elastic element 43 is disposed on the opposite side of the fixing block 41 relative to the lifting seat 221, and the elastic element 43 is sleeved on the outer periphery of the connecting shaft 42; the baffle 44 is connected to the top end of the connecting shaft 42, and the bottom surface of the baffle 44 abuts against the top end of the elastic element 43; the drive shaft 45 passes through the top plate and the fixing block 41 sequentially from the top side of the baffle 44, and then abuts against the lifting seat 221. Based on the above configuration, in practical applications, under the coordinated action of the connecting shaft 42, the elastic element 43, and the baffle 44, the elastic element 43 pulls the connecting shaft 42 through the baffle 44, thereby causing the lifting seat 221 to maintain an upward movement trend toward the fixed block 41. Meanwhile, the drive shaft 45 provides the opposite pressure to the lifting seat 221 to limit the height range of the lifting seat 221. That is, by adjusting the relative height between the drive shaft 45 and the fixed block 41, the height of the lifting seat 221, i.e., the second pressure roller 22, can be adjusted.

[0028] In one embodiment, each drive component includes two connecting shafts 42, which are respectively disposed on both sides of the drive shaft 45. The bottom ends of the two connecting shafts 42 are connected to the lifting seat 221, and the top ends of the two connecting shafts 42 are connected to the baffle 44, thereby improving the movement stability of the lifting seat 221.

[0029] In one embodiment, each drive component includes two elastic elements 43, which are respectively sleeved onto two connecting shafts 42. The bottom ends of the two elastic elements 43 abut against the fixed seat, and the top ends of the two elastic elements 43 abut against the baffle 44, thereby further improving the buffering performance of the lifting seat 221.

[0030] In one embodiment, each drive assembly further includes a locking element 46, with the top end of the drive shaft 45 extending through to the top side of the baffle 44 and threadedly engaging with the locking element 46. Thus, when the drive shaft 45 is adjusted to the correct position, the relative position between the drive shaft 45 and the baffle 44 can be locked by the locking element 46.

[0031] Furthermore, the mounting base 10 is provided with lateral limiting structures 11 at both ends of the first pressure roller 21 and the second pressure roller 22, respectively, to limit the lateral setting positions of the first pressure roller 21 and the second pressure roller 22.

[0032] Furthermore, the guiding mechanism 30 is configured in two sets, with the two guiding mechanisms 30 respectively located on the feeding side and the discharging side of the calendering mechanism 20, to guide the feeding and discharging of the calendering mechanism 20.

[0033] In one embodiment, each guiding mechanism 30 specifically includes two adjusting plates 31, a mounting plate 32, and a guide plate 33. The two adjusting plates 31 are respectively disposed at both ends of the same side surface of the mounting base 10 corresponding to the two ends of the first pressure roller 21. The mounting plate 32 is disposed in the same direction as the first pressure roller 21. At the same time, both ends of the mounting plate 32 are movably connected to the two adjusting plates 31, so that the mounting plate 32 can adjust its setting height based on the two adjusting plates 31. One side of the guide plate 33 is connected to the mounting plate 32, and the other side extends toward the material passage space between the first pressure roller 21 and the second pressure roller 22, thereby realizing the material guiding function of the guide plate for the EVA sheet.

[0034] In one embodiment, each guide mechanism 30 further includes a lateral limiting block 34, which slides along the horizontal extension direction of the mounting plate 32 to the mounting plate 32. For narrower EVA sheets, the horizontal input and output areas of the EVA sheets can be limited by adjusting the lateral limiting block 34, thereby further enhancing the feeding and discharging stability of the EVA sheets.

[0035] In summary, the EVA calendering device disclosed in this utility model, through a guiding mechanism, can coordinate with the calendering mechanism to guide the EVA sheet to be calendered to the input end of the calendering mechanism in real time, and simultaneously export the calendered EVA sheet from the output end of the calendering mechanism. This prevents the EVA sheet from slipping due to poor conveying, reducing calendering accuracy, or even being repeatedly wound into the calendering mechanism, damaging the product or equipment. Furthermore, an adjusting mechanism can be used to adjust the calendering force of the calendering mechanism, thereby controlling the calendering thickness of the EVA sheet. Specifically, the two ends of the second pressure roller are movably connected to the top of the mounting base, allowing the second pressure roller to be adjusted up and down along the height direction of the mounting base. Correspondingly, the driving end of each driving component abuts against the corresponding end of the second pressure roller, enabling the driving component to drive and limit the setting height of the second pressure roller relative to the mounting base. Based on the above configuration, the EVA calendering device of this utility model can adjust and control the calendering force and thickness by adjusting the relative position of the second pressure roller and the first pressure roller through the adjusting component. The driving component can drive the second pressure roller to move up and down, while simultaneously limiting the height range of the second pressure roller.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An EVA calendering apparatus, characterized in that, include: The system comprises a mounting base, a calendering mechanism, a guiding mechanism, and an adjusting mechanism, all of which are mounted on the mounting base. The calendering mechanism is located inside the mounting base. The guiding mechanism, with its input and output ends corresponding to the calendering mechanism, is located on both sides of the mounting base. The adjusting mechanism is located on the top of the mounting base, and its adjusting end is connected to the calendering mechanism. The calendering mechanism includes a first pressure roller and a second pressure roller. The first pressure roller is disposed at the bottom of the mounting base, and the second pressure roller is movably connected to the top of the mounting base at both ends in cooperation with the first pressure roller, so that the second pressure roller can be adjusted up and down along the height direction of the mounting base. Correspondingly, the adjustment mechanism includes two drive components, wherein the two drive components are respectively disposed at both ends of the top of the mounting base corresponding to the two ends of the second pressure roller, and the drive end of each drive component abuts against the corresponding end of the second pressure roller.

2. The EVA calendering apparatus according to claim 1, characterized in that, The two ends of the second pressure roller are connected to the mounting base through a lifting seat, and the two ends of the second pressure roller are rotatably connected to the two lifting seats.

3. The EVA calendering apparatus according to claim 2, characterized in that, Each drive assembly includes a fixed block, a connecting shaft, an elastic element, a baffle, and a drive shaft. The fixed block is located on the top of the corresponding end of the mounting base. The connecting shaft slides through the fixed block and connects to the lifting seat at the corresponding end. The elastic element is located on the opposite side of the fixed block relative to the lifting seat, and the elastic element is sleeved on the outer periphery of the connecting shaft. The baffle is connected to the top of the connecting shaft, and the bottom surface of the baffle abuts against the top of the elastic element. The drive shaft passes through the top plate and the fixed block sequentially from the top side of the baffle, and then abuts against the lifting seat.

4. The EVA calendering apparatus according to claim 3, characterized in that, Each drive assembly includes two connecting shafts, which are respectively located on both sides of the drive shaft. The bottom ends of both connecting shafts are connected to the lifting seat, and the top ends of both connecting shafts are connected to the baffle.

5. The EVA calendering apparatus according to claim 4, characterized in that, Each drive assembly includes two elastic elements, which are respectively sleeved onto two connecting shafts. The bottom ends of the two elastic elements abut against the fixed base, and the top ends of the two elastic elements abut against the baffle.

6. The EVA calendering apparatus according to claim 5, characterized in that, Each drive assembly also includes a locking element, with the top end of the drive shaft extending through to the top side of the baffle and threadedly engaging with the locking element.

7. The EVA calendering apparatus according to claim 6, characterized in that, Lateral limiting structures are provided at both ends of the mounting base corresponding to the first pressure roller and both ends of the second pressure roller.

8. The EVA calendering apparatus according to claim 7, characterized in that, The guiding mechanism is set in two sets, with the two guiding mechanisms respectively located on the feeding side of the calendering mechanism and the discharge side of the calendering mechanism.

9. The EVA calendering apparatus according to claim 8, characterized in that, Each guiding mechanism includes two adjusting plates, a mounting plate, and a guide plate. The two adjusting plates are respectively set at both ends of the same side surface of the mounting base, corresponding to the two ends of the first pressure roller. The mounting plate is set in the setting direction of the first pressure roller, and at the same time, both ends of the mounting plate are movably connected to the two adjusting plates. One side of the guide plate is connected to the mounting plate, and the other side extends toward the material passage space between the first pressure roller and the second pressure roller.

10. The EVA calendering apparatus according to claim 9, characterized in that, Each guide mechanism also includes a lateral limiting block, which slides along the horizontal extension direction of the mounting plate to fit the mounting plate.

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