Compression molding, cooling and conveying mechanism for flame-retardant sheets

Abstract

The utility model discloses a compression molding, cooling and conveying mechanism for flame-retardant sheets. The compression molding, cooling and conveying mechanism comprises a rack, a first extrusion roller, a second extrusion roller, a scraping assembly, an embossing roller and a cooling roller, a first gap for extruding a flame-retardant coating to form a flame-retardant sheet is formed between the first extrusion roller and the second extrusion roller; the scraping assembly is arranged at the side end, away from the second extrusion roller, of the first extrusion roller, a second gap allowing the flame-retardant sheet to penetrate through is formed between the embossing roller and the second extrusion roller, the cooling roller is arranged on the portion, at the side end of the embossing roller, of the rack, and a cooling water pipe is arranged in the cooling roller. The scraping assembly can remove residual flame-retardant coating on the first extrusion roller, and the phenomenon that due to the fact that the flame-retardant coating is left, the thickness of a flame-retardant sheet is not uniform, and surface defects or flaws are caused is avoided; cooling liquid can be introduced into the cooling roller, the temperature of the flame-retardant sheet can be reduced while the flame-retardant sheet is pulled and conveyed, the flame-retardant sheet is gradually solidified, and therefore the stability of the shape and the size of the flame-retardant sheet is kept.

Description

Technical Field

[0001] The utility model relates to the field of cooling and conveying mechanisms, in particular to a compression-molded cooling and conveying mechanism for flame-retardant sheets. Background Art

[0002] Flame-retardant sheet is a sheet product with flame-retardant properties. It is generally made of flame-retardant materials through extrusion coating. When encountering a fire source, it can significantly reduce the combustion rate, delay the spread of flames, or not burn at a certain temperature, thereby providing higher fire safety. Flame-retardant sheet is widely used in construction, transportation, electronics, electrical appliances and other fields as fireproof panels, decorative materials, insulation layers or protective layers.

[0003] In the prior art, during the production process of flame-retardant sheets, some flame-retardant coating that has not been extruded into sheets will remain on the extrusion roller. If it is not removed in time, it will gradually accumulate on the surface of the extrusion roller, resulting in quality problems such as uneven thickness and surface defects in the extruded flame-retardant sheet. In addition, after the flame-retardant sheet is pressed and formed, the surface temperature is high, and it will remain soft for a long time during the transportation process, causing the flame-retardant sheet to deform or warp under the action of gravity or tension, thereby affecting the flatness and dimensional accuracy of the flame-retardant sheet.

[0004] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a compression molding, cooling and conveying mechanism for flame retardant sheets which can improve product quality.

[0006] To achieve this purpose, the utility model adopts the following technical solutions: a compression molding cooling and conveying mechanism for flame retardant sheets, comprising a frame, a first squeezing roller, a second squeezing roller, a scraper assembly, an embossing roller, and a cooling roller;

[0007] The first squeezing roller and the second squeezing roller are respectively arranged on the frame, and a first gap is provided between the first squeezing roller and the second squeezing roller for squeezing the flame retardant coating to form a flame retardant sheet;

[0008] The scraper assembly is provided at the side end of the first squeezing roller away from the second squeezing roller, and the scraper assembly is used to scrape off the flame retardant coating attached to the first squeezing roller;

[0009] The embossing roller is arranged at the side end of the second squeezing roller away from the first squeezing roller, and a second gap is provided between the embossing roller and the second squeezing roller for the flame retardant sheet to pass through. The surface of the embossing roller is provided with a texture structure, and the texture structure is used to form a pattern texture on the surface of the flame retardant sheet;

[0010] The cooling roller is arranged on the frame at the side end of the embossing roller. The cooling roller is used to transport the flame-retardant sheet after the embossing process and cool it. The cooling roller has a cooling water pipe inside, and the cooling water pipe is used to pass cooling liquid.

[0011] According to the above technical solution, the compression molding, cooling and conveying mechanism for the flame retardant sheet further includes a driving gear, a first driven gear, a second driven gear and a third driven gear;

[0012] The driving gear is provided at one end of the first squeezing roller, and the driving gear is used to be connected to an external driving device to drive the first squeezing roller to rotate;

[0013] The first driven gear is arranged at the other end of the first extrusion roller, the second driven gear is arranged at the end of the second extrusion roller, and the third driven gear is arranged at the end of the embossing roller. The first driven gear is meshed and connected with the second driven gear, and the third driven gear is meshed and connected with the second driven gear.

[0014] According to the above technical solutions, in the compression molding cooling and conveying mechanism for flame-retardant sheets, the scraper assembly includes a receiving tray, a mounting arm, a pushing cylinder, and a scraper plate;

[0015] The receiving tray is arranged below the first squeezing roller, the mounting arm is arranged above the receiving tray, the pushing cylinder is arranged on the mounting arm, and the movable end of the pushing cylinder is arranged toward the first squeezing roller and connected to the scraper plate, and the scraper plate is used to abut against the side wall of the first squeezing roller as the pushing cylinder moves in a telescopic manner.

[0016] By adopting the above-mentioned technical solutions, in the compression molding cooling and conveying mechanism for the flame-retardant sheet, a heating tube is provided inside the embossing roller, and the heating tube is used to heat the embossing roller.

[0017] By adopting the above-mentioned technical solutions, in the compression molding, cooling and conveying mechanism for the flame-retardant sheet, the diameter of the first squeezing roller is smaller than the diameter of the second squeezing roller.

[0018] By adopting the above-mentioned technical solutions, in the compression molding cooling and conveying mechanism of the flame-retardant sheet, the embossing roller is a detachable structure, and the embossing roller includes an end cover, a roller body and a locking screw, and the end cover and the roller body are connected by multiple locking screws.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The scraper assembly of the utility model can remove the residual flame retardant coating on the first extrusion roller to prevent its accumulation, avoid uneven thickness, surface defects or flaws of the flame retardant sheet caused by the residual flame retardant coating, and ensure the surface flatness of the flame retardant sheet; the embossing roller is arranged at the side end of the second extrusion roller away from the first extrusion roller, and a second gap for the flame retardant sheet to pass through is provided between the embossing roller and the second extrusion roller. Such arrangement allows the forming and embossing processes to be carried out continuously, thereby improving the production efficiency of the flame retardant sheet; since the flame retardant sheet is still at a relatively high temperature after the embossing process, the material of the flame retardant sheet is relatively soft and is prone to deformation or warping during the subsequent conveying process. Cooling liquid can be passed into the cooling roller, which can reduce the temperature of the flame retardant sheet while traction and conveying the flame retardant sheet, so that the flame retardant sheet gradually solidifies, thereby maintaining the stability of its shape and size. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification so as to facilitate understanding and reading by those familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size, without affecting the efficacy and objectives that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed in the present invention.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the installation structure of the scraper assembly of the utility model;

[0025] Figure 3 This is a structural diagram of the receiving tray of the utility model;

[0026] Figure 4 This is a schematic diagram of the explosion structure of the embossing roller of the present utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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 work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0029] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0030] like Figures 1 to 4 As shown, an embodiment of the utility model provides a compression molding cooling and conveying mechanism for flame-retardant sheets, comprising a frame 1, a first squeezing roller 2, a second squeezing roller 3, a scraper assembly 4, an embossing roller 5 and a cooling roller 6; the first squeezing roller 2 and the second squeezing roller 3 are respectively arranged on the frame 1, and a first gap 20 for squeezing the flame-retardant coating to form a flame-retardant sheet is provided between the first squeezing roller 2 and the second squeezing roller 3; the first squeezing roller 2 and the second squeezing roller 3 can be driven to rotate by an external driving device, and the first squeezing roller 2 and the second squeezing roller 3 can be rotated in opposite directions, so that the flame-retardant coating can be clamped and flattened in the first gap 20, and form a uniform thin sheet, thereby realizing the molding of the flame-retardant sheet; by adjusting the size of the first gap 20, the thickness of the flame-retardant sheet can be controlled.

[0031] The scraper assembly 4 is arranged at the side end of the first squeezing roller 2 away from the second squeezing roller 3, and the scraper assembly 4 is used to scrape off the flame retardant coating attached to the first squeezing roller 2; when the flame retardant coating passes through the first gap 20 between the first squeezing roller 2 and the second squeezing roller 3, part of the flame retardant coating will adhere to the surface of the first squeezing roller 2, thereby affecting the normal operation of the first squeezing roller 2, resulting in irregular lines and uneven thickness on the surface of the formed flame retardant sheet. The scraper assembly 4 can remove the residual flame retardant coating on the first squeezing roller 2 to prevent its accumulation, avoid uneven thickness, surface defects or flaws of the flame retardant sheet caused by the residual flame retardant coating, and ensure the surface flatness of the flame retardant sheet.

[0032] The embossing roller 5 is arranged at the side end of the second squeezing roller 3 away from the first squeezing roller 2, and a second gap 30 is provided between the embossing roller 5 and the second squeezing roller 3 for the flame retardant sheet to pass through. The surface of the embossing roller 5 is provided with a texture structure 51, and the texture structure 51 is used to form a pattern texture on the surface of the flame retardant sheet; the texture structure 51 on the surface of the embossing roller 5 can imprint various patterns and textures on the surface of the flame retardant sheet to increase the decorative effect of the flame retardant sheet, so that the molding and embossing processes can be carried out continuously, thereby improving the production efficiency of the flame retardant sheet.

[0033] The cooling roller 6 is provided on the frame 1 at the side end of the embossing roller 5. The cooling roller 6 is used to convey and cool the flame-retardant sheet after the embossing process. The cooling roller 6 has a cooling water pipe 61 inside, and the cooling water pipe 61 is used to pass cooling liquid. Since the flame-retardant sheet is still at a relatively high temperature after the embossing process, the flame-retardant sheet is relatively soft and easily deformed or warped during the subsequent conveying process. The provision of the cooling roller 6 can reduce the temperature of the flame-retardant sheet while traction and conveying, causing the flame-retardant sheet to gradually solidify, thereby maintaining the stability of its shape and size.

[0034] like Figure 1As shown, further, it also includes a driving gear 10, a first driven gear 11, a second driven gear 12 and a third driven gear 13. The driving gear 10 is provided at one end of the first squeezing roller 2. The driving gear 10 is used to connect to an external driving device to drive the first squeezing roller 2 to rotate. The first driven gear 11 is provided at the other end of the first squeezing roller 2. The second driven gear 12 is provided at the end of the second squeezing roller 3. The third driven gear 13 is provided at the end of the embossing roller 5. The first driven gear 11 is meshed and connected with the second driven gear 12, and the third driven gear 13 is meshed and connected with the second driven gear 12. When the external driving device is running, the first squeezing roller 2 can be driven to rotate by the driving gear 10. Since the first driven gear 11 is meshed and connected with the second driven gear 12, and the third driven gear 13 is meshed and connected with the second driven gear 12, the second squeezing roller 3 and the embossing roller 5 are synchronously driven to rotate, so as to continuously realize the molding and embossing processes.

[0035] like Figure 2 and Figure 3 As shown, further, the scraper assembly 4 includes a receiving tray 41, a mounting arm 42, a pushing cylinder 43 and a scraper plate 44, the receiving tray 41 is arranged below the first extrusion roller 2, the mounting arm 42 is arranged above the receiving tray 41, the pushing cylinder 43 is arranged on the mounting arm 42, and the movable end of the pushing cylinder 43 is arranged toward the first extrusion roller 2 and is connected to the scraper plate 44, the scraper plate 44 is used to abut against the side wall of the first extrusion roller 2 as the pushing cylinder 43 moves telescopically, and as the first extrusion roller 2 rotates, the scraper plate 44 will continuously scrape off the flame retardant coating attached to the surface of the roller, and the scraped flame retardant coating will fall into the receiving tray 41 for collection, and the scraper assembly 4 can automatically remove the coating residue on the surface of the first extrusion roller 2, ensure the cleanliness of the surface of the first extrusion roller 2, and reduce the tedious operation of manual cleaning.

[0036] like Figure 4 As shown, further, a heating tube 7 is provided inside the embossing roller 5, and the heating tube 7 is used to heat the embossing roller 5. When the flame retardant sheet is at a high temperature, its surface material becomes softer and easier to form. The heated embossing roller 5 can more clearly emboss textures or patterns on the soft material surface, thereby improving the accuracy and clarity of the embossing effect.

[0037] like Figure 2 As shown, further, the diameter of the first squeezing roller 2 is smaller than the diameter of the second squeezing roller 3 .

[0038] like Figure 4As shown, further, the embossing roller 5 is a detachable structure, and the embossing roller 5 includes an end cover 52, a roller body 53 and a locking screw 54. The end cover 52 and the roller body 53 are connected by multiple locking screws 54. Such a configuration can facilitate the operator to quickly disassemble the embossing roller 5 to inspect or maintain the internal heating tube 7.

[0039] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A compression molding cooling and conveying mechanism for flame retardant sheets, characterized in that: It includes a frame, a first squeezing roller, a second squeezing roller, a scraper assembly, an embossing roller and a cooling roller; The first squeezing roller and the second squeezing roller are respectively arranged on the frame, and a first gap is provided between the first squeezing roller and the second squeezing roller for squeezing the flame retardant coating to form a flame retardant sheet; The scraper assembly is provided at the side end of the first squeezing roller away from the second squeezing roller, and the scraper assembly is used to scrape off the flame retardant coating attached to the first squeezing roller; The embossing roller is arranged at the side end of the second squeezing roller away from the first squeezing roller, and a second gap is provided between the embossing roller and the second squeezing roller for the flame retardant sheet to pass through. The surface of the embossing roller is provided with a texture structure, and the texture structure is used to form a pattern texture on the surface of the flame retardant sheet; The cooling roller is arranged on the frame at the side end of the embossing roller. The cooling roller is used to transport the flame-retardant sheet after the embossing process and cool it. The cooling roller has a cooling water pipe inside, and the cooling water pipe is used to pass cooling liquid.

2. The compression molding, cooling and conveying mechanism for flame-retardant sheets according to claim 1, characterized in that: It also includes a driving gear, a first driven gear, a second driven gear and a third driven gear; The driving gear is provided at one end of the first squeezing roller, and the driving gear is used to be connected to an external driving device to drive the first squeezing roller to rotate; The first driven gear is arranged at the other end of the first extrusion roller, the second driven gear is arranged at the end of the second extrusion roller, and the third driven gear is arranged at the end of the embossing roller. The first driven gear is meshed and connected with the second driven gear, and the third driven gear is meshed and connected with the second driven gear.

3. The compression molding, cooling and conveying mechanism for flame-retardant sheets according to claim 1, characterized in that: The scraper assembly includes a receiving tray, a mounting arm, a pushing cylinder and a scraper plate; The receiving tray is arranged below the first squeezing roller, the mounting arm is arranged above the receiving tray, the pushing cylinder is arranged on the mounting arm, and the movable end of the pushing cylinder is arranged toward the first squeezing roller and connected to the scraper plate, and the scraper plate is used to abut against the side wall of the first squeezing roller as the pushing cylinder moves in a telescopic manner.

4. The compression molding, cooling and conveying mechanism for flame-retardant sheets according to claim 1, characterized in that: A heating tube is provided inside the embossing roller, and the heating tube is used to heat the embossing roller.

5. The compression molding, cooling and conveying mechanism for flame-retardant sheets according to claim 1, characterized in that: The diameter of the first squeezing roller is smaller than the diameter of the second squeezing roller.

6. The compression molding, cooling and conveying mechanism for flame-retardant sheets according to claim 4, characterized in that: The embossing roller is a detachable structure, and comprises an end cover, a roller body and a locking screw. The end cover and the roller body are connected via a plurality of the locking screws.

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