Adjustable calendering baffle structure and calendering machine

Abstract

The present invention discloses an adjustable calendering baffle structure and a calendering machine, which relate to the technical field of calendering, including a bracket, on which two calendering rollers are installed, and baffle mechanisms are installed at both ends of the calendering rollers; the baffle mechanism includes a first plate body and a second plate body that can move along the axial direction of the calendering roller, and the first plate body and the second plate body are connected by a telescopic baffle belt, and the middle part of the telescopic baffle belt is limited and stretched by a moving rod. Through the innovative baffle mechanism design, automatic synchronous adjustment of the baffle is achieved when the spacing between the calendering rollers changes, and at the same time, the sealing and adaptability are improved. The middle area of ​​the telescopic baffle belt is kept in a tensioned state by the moving rod to avoid loosening of the baffle belt. A gap plate is also provided on the side of the baffle belt facing the calendering roller to further prevent material from overflowing from the gap. When the calendering rollers move away from or approach each other, the baffle mechanism can automatically follow and adjust the spacing without manual intervention, thereby significantly improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of calendering, and in particular to an adjustable calendering baffle structure and a calendering machine. Background Art

[0002] In the calendering process of materials such as rubber, plastic, and metal foil, the calender is a key forming machine. Using one or more pairs of counter-rotating rollers, the material is squeezed and stretched to produce a product with the desired thickness and surface quality. However, a common problem with traditional calendering is that the material easily overflows or experiences edge irregularities on either side of the gap between the rollers, compromising the product's dimensional accuracy and surface quality.

[0003] To address this issue, fixed baffles are typically installed at both ends of the calendering rolls to restrict the lateral flow of the material. However, the spacing between these baffles is not adjustable, making it difficult to process materials of varying widths or with varying process requirements. This results in limited production flexibility, and changes in product specifications require frequent adjustment or replacement of the baffles, reducing production efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide an adjustable calendering baffle structure and calendering machine, which has an innovative baffle mechanism design, which realizes automatic synchronous adjustment of the baffle when the calendering roller spacing changes, and at the same time improves the sealing and adaptability. The middle area of ​​the telescopic baffle belt is kept in a tensioned state by a moving rod to prevent the baffle belt from loosening. A baffle plate is also provided on the side of the baffle belt facing the calendering roller to further prevent material from overflowing from the gap. When the calendering rollers move away from or approach each other, the baffle mechanism can automatically follow and adjust the spacing without manual intervention, which significantly improves production efficiency.

[0005] To achieve the above object, the present invention provides the following technical solutions: an adjustable calendering baffle structure and a calendering machine, comprising a bracket, on which two calendering rollers are mounted, and baffle mechanisms are mounted at both ends of the calendering rollers;

[0006] The baffle mechanism includes a first plate body and a second plate body that can move along the axis of the calendering roller. The first plate body and the second plate body are connected by a telescopic baffle belt. The middle of the telescopic baffle belt is limited and stretched by a movable rod. Two rollers for clamping the telescopic baffle belt are provided on one side of the first plate body and the second plate body. A gap plate is provided at the clamping position of the side of the telescopic baffle belt facing the calendering roller.

[0007] The first plate and the second plate are respectively covered on two calendering rollers. When the two calendering rollers move away from each other, the first plate and the second plate move away from each other, and the telescopic barrier belt is automatically stretched while the first plate and the second plate move away from each other.

[0008] Furthermore, the bracket is provided with a driving mechanism for driving the calendering rollers to move closer to and away from each other.

[0009] Furthermore, the driving mechanism includes a first connecting rod and a second connecting rod hinged to each other, and two mutually meshing linkage gears, wherein one linkage gear is installed at the hinged end of the first connecting rod and the second connecting rod, and the other linkage gear is installed at one end of the second connecting rod.

[0010] Furthermore, the shafts of the two calendering rollers are sleeved with mutually meshing drive gears, one end of the first connecting rod is sleeved on the shaft of one of the calendering rollers, and the two drive gears are respectively meshed with the two linkage gears.

[0011] Furthermore, the baffle mechanism also includes a mounting bracket, the two rollers are mounted on the mounting bracket, and both ends of the baffle plate are connected to the mounting bracket.

[0012] Furthermore, both ends of the moving rod are connected to a spring, and the other end of the spring is connected to the mounting bracket.

[0013] Furthermore, a connecting plate is hinged on the first plate body and the second plate body, and the other end of the connecting plate is hinged to the moving rod.

[0014] Furthermore, when the first plate body and the second plate body move away from each other, the connecting plate drives the moving rod to move, thereby driving the telescopic barrier belt to stretch.

[0015] Furthermore, the ends of the first plate and the second plate that are away from each other are hinged with side baffles, and both ends of the two side baffles are connected to the first plate and the second plate through torsion springs. When the first plate and the second plate move away from the calendering roller along the axis of the calendering roller, the side baffles automatically rotate and fit into the side ends of the calendering roller.

[0016] Furthermore, an adjustable calendering baffle structure is installed on the body of the calender.

[0017] The technical effects and advantages of the present invention are as follows:

[0018] 1. The movable rod of the present invention is used to limit and stretch the telescopic barrier belt to ensure that it is always in a tensioned state. Two rollers are provided on one side of the first plate body and the second plate body to clamp the telescopic barrier belt. A gap blocking plate is provided at the clamping position of the telescopic barrier belt facing the calendering roller to prevent material from overflowing from the gap. When the calendering roller spacing is adjusted, the baffle mechanism automatically follows the movement without manual intervention. The telescopic barrier belt cooperates with the gap blocking plate to form a flexible seal, which effectively prevents material leakage. The movable rod ensures that the telescopic barrier belt always remains in a tensioned state during the adjustment process to avoid relaxation or deformation. It is suitable for calendering processing of various materials such as rubber, plastic, and metal foil, improves the versatility of equipment, reduces product defects caused by overflow or improper adjustment of the baffle, and improves production quality. Through innovative mechanical structure design, it solves the problems of inconvenient adjustment and poor sealing of traditional calendering baffles, providing a more efficient and reliable solution for calendering processing.

[0019] 2. The upper and lower ends of the seam baffle of the present invention are provided with scrapers, and one end of the two scrapers is respectively in contact with the surface of the telescopic baffle. When the telescopic baffle retracts, the scrapers scrape the material on the surface of the telescopic baffle to prevent the material from following the retraction of the telescopic baffle into the inside of the telescopic baffle, thereby improving the material blocking efficiency of the material baffle and preventing the material from seeping into the gap and being difficult to clean.

[0020] 3. The driving gears on the two calendering roller shafts of the present invention are respectively engaged with the two linkage gears. When the calendering roller spacing is adjusted, the angle between the first connecting rod and the second connecting rod changes accordingly. However, through the meshing transmission of the linkage gears, the two driving gears are always kept synchronously rotating in opposite directions, thereby ensuring that the rotation speeds of the two calendering rollers are consistent. Only a single driver is required to achieve synchronous drive of the two calendering rollers, and the transmission ratio is automatically maintained unchanged when the roller spacing is adjusted, which not only reduces the driving cost but also ensures the stability of the calendering process. At the same time, the power transmission accuracy is improved through the gear meshing transmission, avoiding the problems of easy wear and frequent tensioning of traditional chain transmission, making the equipment more reliable and easier to maintain.

[0021] 4. The two side baffles of the present invention are flipped to form a C-shape with the first plate body and the second plate body baffle surface to prevent the material from leaking out from the gap above the side baffle. The upper and lower ends of the C-shaped side baffle are both in contact with the side ends of the calendering roller. After the material is accumulated, it is gathered and discharged by the C-shaped side baffle to avoid leakage of the material, thereby effectively blocking the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a partial structural schematic diagram of the calender of the present invention;

[0024] Figure 3 This is a schematic diagram of the split structure of the baffle mechanism and the calendering roller of the present invention;

[0025] Figure 4 Schematic diagram of the baffle mechanism structure of the present invention;

[0026] Figure 5 It is a cross-sectional view of the baffle mechanism structure of the present invention;

[0027] Figure 6 For the present invention Figure 5 A magnified view of point A;

[0028] Figure 7 It is a rear cross-sectional view of the baffle mechanism structure of the present invention;

[0029] Figure 8 This is a structural diagram of embodiment 2 of the present invention;

[0030] Figure 9 This is a structural plan view of embodiment 3 of the present invention.

[0031] In the picture:

[0032] 1. Bracket; 11. Calendering roller; 2. Baffle mechanism; 21. First plate; 211. Connecting plate; 22. Second plate; 221. Side baffle; 23. Telescopic baffle; 24. Moving rod; 25. Seam baffle; 251. Scraper; 26. Mounting bracket; 3. Driving mechanism; 31. First connecting rod; 32. Second connecting rod; 33. Linking gear. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] To better understand the adjustable calendering baffle structure and calendering machine provided in this embodiment, a brief introduction to existing calendering baffle structures is first provided. In the prior art, some adjustable baffle structures adjust the baffle spacing manually or mechanically, but the adjustment process is cumbersome and difficult to achieve synchronous adjustment when the calendering rollers are dynamically separated or closed. Furthermore, the sealing between conventional adjustable baffles is poor after adjustment, and material may still overflow from the gaps between the baffles, causing waste or equipment pollution. Some solutions use flexible curtain structures, but lack effective tensioning and limiting mechanisms, causing the curtain to easily loosen or shift during the calendering process, affecting the material blocking effect. This specification aims to address the above technical problems. The embodiments of this application provide an adjustable calendering baffle structure and calendering machine suitable for calendering a variety of materials, such as rubber, plastic, and metal foil. This improves the versatility of the equipment, reduces product defects caused by overflow or improper baffle adjustment, and improves production quality. Through an innovative mechanical structure design, the problems of inconvenient adjustment and poor sealing of conventional calendering baffles are resolved, providing a more efficient and reliable solution for calendering.

[0035] Example 1: Reference Figure 1 - Figure 7 , which is a first embodiment of the present invention, provides an adjustable calendering baffle structure, including a bracket 1, the bracket 1 is used to support the entire calendering mechanism, two calendering rollers 11 are installed on the bracket 1, and the two calendering rollers 11 are used to calender the material. A baffle mechanism 2 is installed at both ends of the calendering roller 11, and the baffle mechanism 2 includes a first plate body 21 and a second plate body 22 that can move along the axial direction of the calendering roller 11, and the first plate body 21 and the second plate body 22 are connected by a telescopic barrier 23, and the telescopic barrier 23 is used to close the gap on both sides of the calendering roller 11, and the middle of the telescopic barrier 23 is limited and stretched by a moving rod 24, and the moving rod 24 is used to limit and stretch the telescopic barrier 23 to ensure that it is always in a tensioned state, and two rollers are provided on one side of the first plate body 21 and the second plate body 22 to clamp the telescopic barrier 23, and a gap plate 25 is provided at the clamping position of the telescopic barrier 23 facing the calendering roller 11 to prevent material from overflowing from the gap;

[0036] The first plate 21 and the second plate 22 are respectively covered on the two calendering rollers 11. When the two calendering rollers 11 move away from each other, the first plate 21 and the second plate 22 move away from each other, and the first plate 21 and the second plate 22 move away from each other while driving the telescopic barrier belt 23 to automatically stretch. The first plate 21 and the second plate 22 are respectively covered on the two calendering rollers 11. When the spacing between the calendering rollers 11 is adjusted, the baffle mechanism 2 automatically follows the movement without manual intervention. The telescopic barrier belt 23 cooperates with the seam plate 25 to form a flexible seal, effectively preventing material leakage. The moving rod 24 ensures that the telescopic barrier belt 23 always remains in a tensioned state during the adjustment process to avoid relaxation or deformation. It is suitable for calendering processing of various materials such as rubber, plastic, and metal foil, improves the versatility of equipment, reduces product defects caused by overflow or improper baffle adjustment, and improves production quality. Through innovative mechanical structure design, it solves the problems of inconvenient adjustment and poor sealing of traditional calendering baffles, providing a more efficient and reliable solution for calendering processing.

[0037] The bracket 1 is provided with a driving mechanism 3 for driving the calendering rollers 11 to move closer to and away from each other. The driving mechanism 3 may be a cylinder for driving the calendering rollers 11 to move up and down.

[0038] The baffle mechanism 2 also includes a mounting bracket 26, two rollers are mounted on the mounting bracket 26, and both ends of the slit plate 25 are connected to the mounting bracket 26, both ends of the mobile rod 24 are connected to a spring, and the other end of the spring is connected to the mounting bracket 26, the first plate 21 and the second plate 22 are hinged with a connecting plate 211, and the other end of the connecting plate 211 is hinged to the mobile rod 24. When the first plate 21 and the second plate 22 move away from each other, the mobile rod 24 is driven to move by the connecting plate 211, driving the telescopic barrier 23 to stretch. The baffle mechanism 2 fixes the two rollers through the mounting bracket 26, so that the telescopic barrier The clamping of 23 is more stable, and the two ends of the seam plate 25 are connected to the mounting bracket 26 to ensure more reliable sealing; the springs vertically connected at both ends of the moving rod 24 can automatically compensate for the tension changes of the telescopic barrier belt 23 to prevent relaxation; the first plate body 21 and the second plate body 22 are linked to the moving rod 24 through the hinged connecting plate 211. When the two plate bodies move away from each other, the connecting plate 211 drives the moving rod 24 to move synchronously, so that the telescopic barrier belt 23 is automatically stretched and maintained in a tensioned state, thereby achieving precise matching of the baffle spacing and the calendering roller 11 spacing, effectively preventing material leakage, and improving production efficiency and product yield.

[0039] Scrapers 251 are provided at the upper and lower ends of the gap blocking plate 25, and one end of the two scrapers 251 is respectively in contact with the surface of the telescopic blocking belt 23. When the telescopic blocking belt 23 retracts, the scrapers 251 scrape the material on the surface of the telescopic blocking belt 23 to prevent the material from retracting with the telescopic blocking belt 23 and entering the inside of the telescopic blocking belt 23, thereby improving the material blocking efficiency of the material baffle and preventing the material from seeping into the gap and being difficult to clean.

[0040] An adjustable calendering baffle structure is installed on the body of the calender.

[0041] Example 2: Reference Figure 8 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment. During the implementation of the first embodiment, it was found that when the distance between the two calendering rollers 11 needs to be adjusted, it is impossible to drive the two calendering rollers 11 with the same driver. After the distance between the two calendering rollers 11 is adjusted, it is impossible to drive them with a single driver through two gears, resulting in increased driving costs.

[0042] The driving mechanism 3 includes a first connecting rod 31 and a second connecting rod 32 which are hinged to each other, and two interlocking gears 33 which mesh with each other, wherein one interlocking gear 33 is mounted on the hinged end of the first connecting rod 31 and the second connecting rod 32, and the other interlocking gear 33 is mounted on one end of the second connecting rod 32. The shafts of the two calendering rollers 11 are sleeved with mutually meshing driving gears, one end of the first connecting rod 31 is sleeved on the shaft of one of the calendering rollers 11, and the two driving gears are respectively meshed with the two interlocking gears 33. When the spacing between the calendering rollers 11 is adjusted, the first connecting rod 31 is sleeved on the shaft of one of the calendering rollers 11, and the two driving gears are respectively meshed with the two interlocking gears 33. The angle between the connecting rod 31 and the second connecting rod 32 changes accordingly, but the meshing transmission of the linkage gear 33 always keeps the two driving gears rotating synchronously in opposite directions, thereby ensuring that the speed of the two calendering rollers 11 is consistent. Only a single driver is required to achieve synchronous drive of the two calendering rollers 11, and the transmission ratio is automatically maintained unchanged when the roller spacing is adjusted, which not only reduces the driving cost but also ensures the stability of the calendering process. At the same time, the power transmission accuracy is improved through the gear meshing transmission, avoiding the problems of easy wear and frequent tensioning of traditional chain transmission, making the equipment operation more reliable and easier to maintain.

[0043] Example 3: Reference Figure 9 , which is the third embodiment of the present invention. What is different from the first embodiment is that the first plate body 21 and the second plate body 22 can be driven away from the calendering roller 11 along the axis direction of the calendering roller 11, and the ends of the first plate body 21 and the second plate body 22 that are away from each other are hinged with side baffles 221, and both ends of the two side baffles 221 are connected to the first plate body 21 and the second plate body 22 by torsion springs. When the first plate body 21 and the second plate body 22 are away from the calendering roller 11 along the axis direction of the calendering roller 11, the side baffles 221 automatically rotate and fit the side ends of the calendering roller 11, and the two side baffles 221 flip and form a C shape with the blocking surfaces of the first plate body 21 and the second plate body 22 to prevent material from leaking from the gap above the side baffles 221. The upper and lower ends of the C-shaped side baffles 221 are both in contact with the side ends of the calendering roller 11. After the material is accumulated, it is gathered and discharged by the C-shaped side baffles 221 to prevent the material from leaking, thereby effectively blocking the material.

[0044] It should be noted that the two ends of the two side baffles 221 are twistedly connected to the first plate body 21 and the second plate body 22 respectively, and the connection surfaces of the side baffles 221 and the first plate body 21 and the second plate body 22 are sealed with sealing gaskets to achieve gap sealing without affecting the flipping of the side baffles 221.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable calendering baffle structure, comprising a bracket (1), on which two calendering rollers (11) are mounted, characterized in that: Both ends of the calendering roller (11) are equipped with baffle mechanisms (2); The baffle mechanism (2) comprises a first plate body (21) and a second plate body (22) which are movable along the axis direction of the calendering roller (11); the first plate body (21) and the second plate body (22) are connected by a telescopic baffle (23); the middle of the telescopic baffle (23) is limited and stretched by a moving rod (24); two rollers for clamping the telescopic baffle (23) are provided on one side of the first plate body (21) and the second plate body (22); a baffle plate (25) is provided at the clamping position of the side of the telescopic baffle (23) facing the calendering roller (11); The first plate body (21) and the second plate body (22) are respectively covered on the two calendering rollers (11), and when the two calendering rollers (11) move away from each other, the first plate body (21) and the second plate body (22) are driven to move away from each other, and when the first plate body (21) and the second plate body (22) move away from each other, the telescopic barrier belt (23) is automatically stretched; The baffle mechanism (2) further includes a mounting bracket (26), two rollers are mounted on the mounting bracket (26), and both ends of the slit plate (25) are connected to the mounting bracket (26), and both ends of the moving rod (24) are connected to a spring, and the other end of the spring is connected to the mounting bracket (26); A connecting plate (211) is hingedly connected to the first plate body (21) and the second plate body (22), and the other end of the connecting plate (211) is hingedly connected to the moving rod (24). When the first plate body (21) and the second plate body (22) move away from each other, the connecting plate (211) drives the moving rod (24) to move, thereby driving the telescopic barrier belt (23) to stretch.

2. The adjustable rolling baffle structure according to claim 1, characterized in that: The bracket (1) is provided with a driving mechanism (3) for driving the calendering rollers (11) to move toward and away from each other.

3. The adjustable rolling baffle structure according to claim 2, characterized in that: The driving mechanism (3) comprises a first connecting rod (31) and a second connecting rod (32) hinged to each other, and two interlocking gears (33) meshing with each other, wherein one interlocking gear (33) is mounted on the hinged end of the first connecting rod (31) and the second connecting rod (32), and the other interlocking gear (33) is mounted on one end of the second connecting rod (32).

4. The adjustable calendering baffle structure according to claim 3, characterized in that: The shafts of the two calendering rollers (11) are both sleeved with mutually meshing drive gears, one end of the first connecting rod (31) is sleeved on the shaft of one of the calendering rollers (11), and the two drive gears are respectively meshed with the two linkage gears (33).

5. The adjustable calendering baffle structure according to claim 4, characterized in that: A side baffle (221) is hingedly connected to one end of the first plate body (21) and the second plate body (22) that is away from each other. Both ends of the two side baffles (221) are connected to the first plate body (21) and the second plate body (22) via a torsion spring. When the first plate body (21) and the second plate body (22) move away from the calendering roller (11) along the axis direction of the calendering roller (11), the side baffle (221) automatically rotates and fits against the side end of the calendering roller (11).

6. A calender, characterized in that: The calender body is equipped with an adjustable calendering baffle structure as described in any one of claims 1 to 5.

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