阅读说明：本技术 一种连续发泡材料的定厚装置 (Continuous expanded material's device of deciding thick ) 是由 万立祥 杨庆锋 张镤 于 2020-06-22 设计创作，主要内容包括：本发明属于发泡材料生产设备技术领域,具体公开了一种连续发泡材料的定厚装置,包括发泡腔和锁厚部；所述发泡腔的两端分别设置有进料口和出料口,发泡腔的内壁沿着发泡材料输送方向设有若干加热元件；所述锁厚部设于所述出料口的外部,锁厚部包括相对设置的与冷却媒介管路连通的压力辊和转向辊,所述压力辊和转向辊中,至少一个表面设有冷却结构,且至少一个为由动力设备驱转的主动辊；所述发泡材料经过压力辊和转向辊之间的压制区域后以贴合于所述转向辊表面的方式送出。本发明能够实现发泡材料的精确、快速定厚,有效降低成品尺寸偏差,提高成品质量。(The invention belongs to the technical field of foaming material production equipment, and particularly discloses a constant thickness device for a continuous foaming material, which comprises a foaming cavity and a thickness locking part; a feeding hole and a discharging hole are respectively formed in two ends of the foaming cavity, and a plurality of heating elements are arranged on the inner wall of the foaming cavity along the conveying direction of the foaming material; the thickness locking part is arranged outside the discharge port and comprises a pressure roller and a steering roller which are oppositely arranged and communicated with a cooling medium pipeline, at least one surface of the pressure roller and the steering roller is provided with a cooling structure, and at least one surface of the pressure roller and the steering roller is a driving roller driven by power equipment to rotate; the foaming material passes through a pressing area between the pressure roller and the turning roller and is delivered in a mode of being attached to the surface of the turning roller. The invention can realize the accurate and rapid thickness fixing of the foaming material, effectively reduce the size deviation of the finished product and improve the quality of the finished product.)

1. A device for determining the thickness of continuous foaming materials is characterized in that: comprises a foaming cavity (1) and a thickness locking part (2); a feeding hole (11) and a discharging hole (12) are respectively formed in two ends of the foaming cavity (1), and a plurality of heating elements (13) are arranged on the inner wall of the foaming cavity (1) along the conveying direction of the foaming material; the thickness locking part (2) is arranged outside the discharge hole (12), the thickness locking part (2) comprises a pressure roller (21) and a steering roller (22) which are oppositely arranged and communicated with a cooling medium pipeline, at least one surface of the pressure roller (21) and the steering roller (22) is provided with a cooling structure (23), and at least one surface of the pressure roller and the steering roller is a driving roller driven by power equipment to rotate; the foaming material passes through a pressing area between a pressure roller (21) and a turning roller (22) and is delivered in a mode of being attached to the surface of the turning roller (22).

2. The apparatus for determining the thickness of a continuous foamed material according to claim 1, wherein: the cooling structure (23) is a plurality of bulges on the surface of the pressure roller (21)/the steering roller (22).

3. The apparatus for determining the thickness of a continuous foamed material according to claim 2, wherein: the protrusion is 0.1-0.5mm higher than the surface of the pressure roller (21)/the turning roller (22).

4. The apparatus for determining the thickness of a continuous foamed material according to claim 1, wherein: the roller diameter of the deflecting roller (22) is at least 1.2 times of the roller diameter of the pressure roller (21).

5. The apparatus for determining the thickness of a continuous foamed material according to claim 1, wherein: when the foaming material is attached to the surface of the turning roller (22) and sent out, the sending-out direction and the conveying direction of the foaming material in the foaming cavity (1) form an acute angle.

6. The apparatus for determining the thickness of a continuous foamed material according to claim 1, wherein: at least the pressing areas of the pressure roller (21) and the deflecting roller (22) are opposite to the discharge opening (12).

7. The apparatus for determining the thickness of a continuous foamed material according to claim 6, wherein: the pressure roller (21) is located in the area directly opposite the discharge opening (12), and at least 70% of the deflecting roller (22) is located outside the area directly opposite the discharge opening (12).

8. The apparatus for determining the thickness of a continuous foamed material according to claim 6, wherein: the discharge hole (12) is rectangular.

9. The apparatus for determining the thickness of a continuous foamed material according to claim 1, wherein: the roller shaft both ends of pressure roller (21) and turn to roller (22) are equipped with regulating part respectively, regulating part include the mount and overlap locate the roller shaft and sliding connection in the bearing frame of mount.

10. The apparatus for determining the thickness of a continuous foamed material according to claim 9, wherein: the adjusting part of the pressure roller (21) is also provided with an air cylinder connected with the bearing seat.

11. The apparatus for determining the thickness of a continuous foamed material according to claim 1, wherein: the heating element (13) is arranged in the middle of the inner wall of the foaming cavity (1), and an unfolding roller (14) with a cooling function is arranged below the arrangement area of the heating element (13).

Technical Field

The invention belongs to the technical field of foaming material production equipment, and particularly relates to a thickness fixing device for a continuous foaming material.

Background

The foaming of the sheet material refers to a process of heating a belt-shaped polymer material in a foaming furnace, decomposing a foaming agent at high temperature to generate gas, filling the gas into the polymer material to generate a foamed material with closed pores, and in actual production, after foaming is completed, the foamed material needs to be cooled and shaped by a cooling device, and then the foamed material is directly rolled or is rolled through some post-treatment processes (such as edge cutting, embossing, cutting pieces and the like) to obtain a finished product. Among the above processes, the cooling and setting process is particularly important, and directly determines the quality of the finished product, and most of the setting devices of the existing foaming material production line are cooling roller sets (such as CN105599210B and CN 209111359U) arranged outside the foaming furnace, and have the following defects: firstly, the cooling speed is slow, although the improvement can be realized by increasing the number of cooling roller sets or increasing the pressure of the roller pairs, the energy consumption of the former is high, and the latter is easy to excessively extrude the sheet and even break the sheet; more importantly, the prior cooling and shaping only cools and solidifies the sheet by a cooling roller, so that the thickness of the sheet is difficult to control accurately, the sheet is relatively thin (usually only 2-3 mm) and is easy to deform under the influence of external factors such as temperature, airflow, traction speed and the like, so that the size of a finished product is difficult to control and large deviation is easy to occur, and the foaming material is usually required to be attached to other sheets for use, so that once the thickness of different parts generates large deviation, the combination of the foaming material and the sheets is directly influenced, and the quality and the use performance of the sheets are further influenced.

Disclosure of Invention

In order to solve the problems, the invention provides a thickness fixing device for a continuous foaming material, which can realize accurate and rapid thickness fixing, effectively reduce the size deviation of a finished product and improve the quality of the finished product.

In order to achieve the purpose, the invention adopts the following specific technical scheme:

a thickness fixing device for continuous foaming materials comprises a foaming cavity and a thickness locking part; a feeding hole and a discharging hole are respectively formed in two ends of the foaming cavity, and a plurality of heating elements are arranged on the inner wall of the foaming cavity along the conveying direction of the foaming material; the thickness locking part is arranged outside the discharge port and comprises a pressure roller and a steering roller which are oppositely arranged and communicated with a cooling medium pipeline, at least one surface of the pressure roller and the steering roller is provided with a cooling structure, and at least one surface of the pressure roller and the steering roller is a driving roller driven by power equipment to rotate; the foaming material passes through a pressing area between the pressure roller and the turning roller and is delivered in a mode of being attached to the surface of the turning roller. The invention accurately controls the dimension of the foaming material through a thickness fixing device consisting of a foaming cavity and a thickness locking part, wherein the thickness locking part consists of a pressure roller and a turning roller which are oppositely arranged and have a cooling function and at least one surface of which is provided with a cooling structure, and the cooling structure is a structure which can enable the surface of the sheet to form a concave-convex appearance after the sheet is rolled by the pressure roller and the turning roller. The sheet is preliminarily molded after foaming in the foaming cavity, then vertically enters between the pressure roller and the steering roller, and the foaming material utilizes the waste heat to enable the cooling structure to be embedded into the surface of the sheet during rolling and is cooled and shaped under the action of a cooling medium; the cooling structure forms concave parts at a plurality of positions on the surface of the foaming material, and the strength of the foaming material is not influenced because the concave parts and the plane parts are alternately arranged at intervals; the arrangement of the cooling structure not only increases the cooling contact area, but also enables the cooling process to quickly go deep into the foaming material, realizes the accurate and quick control of the thickness, improves the speed and the sufficiency of the integral cooling of the sheet, and has obvious advantages in the shaping effect and the efficiency compared with the mode of increasing the number of cooling roller sets or increasing the pressure of the roller pair in the prior art; the invention also sends out in a mode of being attached to a steering roller after embossing is finished so as to increase the cooling contact time and play a role in protecting and stabilizing the lines formed on the surface of the foaming material by the cooling structure. Therefore, the thickness locking part not only can shape the surface of the foaming material, but also can precisely shape the foaming material in the thickness direction, so that the size deviation of a finished product is small.

Preferably, the cooling structure is a plurality of bulges on the surface of the pressure roller/turning roller, and the shapes and the sizes of the bulges can be diversified.

Preferably, the protrusions are 0.1-0.5mm above the surface of the pressure/turning roll.

Preferably, the cylinder diameter of the turning roll is at least 1.2 times the cylinder diameter of the pressure roll. The diameter of the turning roller is increased to increase the contact area of the foaming material and the turning roller, so that the foaming material is cooled and shaped more sufficiently, and the locking thickness effect is enhanced.

Preferably, when the foaming material is attached to the surface of the turning roller and sent out, the sending-out direction and the conveying direction of the foaming material in the foaming cavity form an acute angle. The contact area between the foaming material and the steering roller is increased by controlling the sending direction of the foaming material, so that the foaming material is cooled and shaped more sufficiently, and the thickness locking effect is enhanced.

Preferably, at least the pressing area of the pressure roller and the turning roller is opposite to the discharge port. Also cooling when the roll-in, and the foaming material surface need form unsmooth structure under the cooling structure effect, consequently need avoid cooling early to overcome and be difficult to the shaping and the problem of direct influence outward appearance, through set up the regional setting in the position just right with foaming chamber discharge gate with the at least suppression on pressure roller and the turn to roller, make suppression region and foaming material have certain being heated, can not cool off immediately.

Preferably, the pressure roller is located at a facing area of the discharge opening, and at least 70% of the turn roller is located outside the facing area of the discharge opening. Such position design can effectively slow down the cooling process of pressing cooling structure when laminating the roll-in with expanded material, is favorable to concave-convex structure's shaping, and expanded material laminates in the steering roll and sees off after the roll-in, and the steering roll is heated less, can lock thick to expanded material fast for locking thick portion can not influence the thick effect of lock when guaranteeing expanded material aesthetic property.

Preferably, the discharge gate is the rectangle, and the long limit sets up the axial unanimity of direction and pressure roller and steering roll for the expanded material is heated evenly at different positions on the width direction, and then avoids increasing the problem of finished product size deviation because of the thick process inconsistency of lock that the difference of being heated leads to.

Preferably, the roll shaft both ends of pressure roller and steering roll are equipped with regulating part respectively, regulating part include the mount and overlap locate the roll shaft and sliding connection in the bearing frame of mount. The adjusting part realizes the position adjustment, disassembly and replacement of the pressure roller and the steering roller through the sliding of the bearing seat on the fixing frame, and the operation is simple.

Preferably, the adjusting part of the pressure roller is further provided with an air cylinder connected with the bearing seat, so that power is provided for the movement of the bearing seat on the fixing frame, and the pressure roller positioned on the outer side can be more conveniently and rapidly assembled and disassembled.

Preferably, the heating element is arranged in the middle of the inner wall of the foaming cavity, and an unfolding roller with a cooling function is arranged below the arrangement area of the heating element. Foaming is carried out to sheet in the foaming chamber under heating element effect, and the foaming back sheet can expand, and both sides also can curl, consequently set up the expansion roller that has cooling function in non-warm area, on the one hand through the expansion roller with the sheet exhibition flat, improve the planarization of sheet, on the other hand, make the inside foaming that stops completely of sheet through the cooling effect of expansion roller when non-warm area is flat, avoid the flattening back thickness of sheet to change again, provide good structural basis for the lock of follow-up sheet is thick.

The invention provides a winding assembly suitable for a sizing device, which comprises a deviation corrector, a tractor and a winding frame, wherein the winding assembly is used for reducing the influence of the winding process on the foam material sizing process. The sheet is directly wound by the winding frame after being processed by the thickness fixing device, so that the deviation phenomenon is easy to generate, once the sheet deviates, the stress on two sides of the sheet which is subjected to thickness locking is unbalanced, the setting effect is directly influenced, and the size deviation of the sheet is increased, so that the deviation generated in the thickness locking process is avoided by arranging the deviation rectifying machine in the winding assembly; set up to whole transmission course through the tensioner and provide good cushioning effect, when the rolling speed changes, maintain invariable tension for the thick process of lock can be carried out continuously and stably, further reduces the influence that the rolling caused to the thick process of lock.

Preferably, the number of the tension machines is two, and the winding assembly comprises a deviation rectifying machine, a first tension machine, a traction machine, a second tension machine and a winding frame which are sequentially arranged. The two tension machines can effectively improve the production efficiency, and when the winding frame is used for changing rolls or performing subsequent cutting and other operations, the two tension machines have a synergistic effect, so that a certain adjusting time can be provided, the former foaming and locking processes can not be influenced in a short time, and the continuous production can be realized; and the setting of two tensioning machines can effectively reduce the condition that the expanded material takes place the skew and the degree that takes place the skew, reduces the deviation correcting machine work load that sets up at the first tensioning machine front end and reduces the degree of difficulty of rectifying, even take place certain skew also can quick adjustment, can not cause the influence to the thick process of lock, further improves the stability of rolling, ensures the accurate control of expanded material size.

The invention also provides a production system of the foaming material, which comprises the shaping device and the winding assembly, and in order to improve the surface performance of a finished product, the production system also comprises a cooling roller arranged on one side of the steering roller and used for further cooling the foaming material and a corona machine arranged between the cooling roller and the deviation rectifying machine. Corona treatment is carried out on the foaming material through the corona machine, so that the surface roughness of the foaming material is increased, the wettability and the adhesiveness of the surface of the foaming material are further improved, and the compatibility with an adhesive in subsequent use is improved; the cooling roller is arranged to ensure complete cooling of the foaming material, improve the dimensional stability of the foaming material and further obtain a good corona effect. The production system of the foaming material can continuously and stably produce various flaky foaming materials, has high production efficiency, produces the foaming material with small size deviation and has good associativity with other plates.

The invention has the following beneficial effects:

1. the size of the foaming material is accurately controlled by a thickness fixing device consisting of a foaming cavity and a thickness locking part, wherein the thickness locking part consists of a pressure roller and a steering roller which are oppositely arranged and have a cooling function, and at least one of the pressure roller and the steering roller is provided with a surface cooling structure; the sheet is preliminary shaping after foaming chamber foaming, passes through cooling structure cooperation roll-in at the thickness locking portion and accomplishes the accurate design in surface and thickness direction, compares with prior art, and it is more abundant to stereotype fast, and finished product size deviation is little (steerable within 10%). In addition, the cooling structure can form lines on the surface of the sheet, the pattern of the cooling structure can be designed according to the requirements of users, the attractiveness can be improved without subsequent treatment, and the cost is effectively reduced.

2. Through increasing the diameter of the steering roller, controlling the foaming material and increasing the contact area of the foaming material and the steering roller in the two aspects that the delivery direction of the steering roller and the delivery direction of the foaming cavity form an acute angle, the cooling and shaping of the foaming material are more sufficient, and the locking thickness effect is strengthened.

3. Through setting up the regional setting of at least suppression on pressure roller and the steering roll in the position just right with foaming chamber discharge gate for suppression region and expanded material have certain being heated, avoid expanded material early cooling and lead to its surface to be difficult to form corresponding unsmooth structure under the cooling structure effect, and then influence the outward appearance and lock thick effect. More optimally, the pressure roller is arranged in the opposite area of the discharge hole, and at least 70% of the steering roller is arranged outside the opposite area of the discharge hole, so that the concave-convex structure of the foaming material is smoothly formed, and meanwhile, the rapid cooling is realized, and the good locking thickness effect is obtained; through setting up the discharge gate into the rectangle for expanded material is heated evenly in width direction, improves the uniformity of the thick effect of different position locks.

4. Through set up the position control that regulating part realized two rollers and dismantle the change at pressure roller and steering roll both ends, regulating part includes that roller and sliding connection are located to mount and cover in the bearing frame of mount, easy operation, when the cooling structure on roller surface wearing and tearing or when needing the cooling structure of different patterns, can accomplish the replacement of roller fast, improves work efficiency.

5. The expansion roller with the cooling function is arranged in the non-heating area below the heating element, so that the expanded sheet is flattened, the foaming inside the sheet is stopped to avoid the thickness from changing, and a good structural foundation is provided for the thickness locking of the subsequent sheet.

6. The influence of the winding operation on the thickness locking effect is reduced by arranging a deviation correcting machine and a tension machine in the winding assembly; specifically, the problems of inaccurate locking thickness and increased finished product size deviation caused by sheet position deviation are solved by arranging a deviation corrector in the winding assembly; the tensioner is arranged to provide a good buffering effect for the whole transmission process, and constant sheet pressure is maintained when the winding speed changes, so that the thickness locking process can be continuously and stably carried out; more optimally, the two tensioners are arranged to avoid the influence of the subsequent rolling operation on the previous foaming and thickness locking processes, so that the continuous production can be realized, and the production efficiency is effectively improved; and can reduce the skew of expanded material, further improve the stability of rolling, ensure the accurate control of expanded material size.

7. The arrangement of the cooling structure in the locking thickness part enables the surface of the foaming material to be in a concave-convex structure, and is beneficial to combination with the adhesive in subsequent use.

8. The invention can be used for continuous production of IXPE, XPE, EVA and other foaming materials, and the foaming cavity can be vertical or horizontal, so that the invention has wide application range and good application prospect.

Drawings

FIG. 1: the structure of the thickness fixing device in the embodiment 1 is schematically shown.

FIG. 2: a three-dimensional structure of a locking thickness portion described in example 1.

FIG. 3: the structure of the thickness fixing device in the embodiment 3 is schematically shown.

FIG. 4: embodiment 4 the structure schematic diagram of rolling subassembly.

FIG. 5: the structure of the tensioner in example 4 is shown in three-dimensional.

FIG. 6: example 6 is a schematic structural view of a system for producing a continuously foamed material.

FIG. 7: the structure of the feeding roller of the corona machine in the embodiment 6 is schematically shown.

In the figure: 1-foaming cavity, 2-thickness locking part, 3-cooling roller, 4-corona machine and 5-winding component; 11-a feeding port, 12-a discharging port, 13-a heating element, 14-an unwinding roller, 21-a pressure roller, 22-a steering roller, 23-a cooling structure, 24-a first adjusting part, 25-a second adjusting part, 41-a material passing roller, 51-a deviation correcting machine, 52 a-a first tension machine, 52 b-a second tension machine, 53-a traction machine and 54-a winding frame; 241-a first fixing frame, 242-a first bearing seat, 243-a first sliding rail, 244-an air cylinder, 245-a fixing plate, 251-a second fixing frame, 252-a second bearing seat, 253-a second sliding rail, 521-a guide roller, 522-a floating roller, 523-a balance block, 524-a transmission part, 525-a guide rod and 526-a spring.

Detailed Description

The invention is further described below with reference to the accompanying drawings and specific embodiments.