A flame retardant paving pad production equipment

Abstract

The present invention relates to the technical field of pad processing, and specifically to a flame-retardant paving pad production equipment, comprising: a molding component, the molding component includes a composite bin, one side of the composite bin is provided with a discharge port, the other side is provided with a feed port one and two feed ports two, the open ends of the feed port one and the feed port two are both connected with an extrusion bin; the composite bin is located at one end of a guide frame and is connected thereto, the upper and lower sides of the guide frame are provided with through grooves, and the outer side of the guide frame is provided with a cooling component; the beneficial effect is: by providing a composite bin at one end of the guide frame, the upper and lower surfaces of the pad extruded and molded in the inner cavity of the feed port one can form multiple groups of strip-shaped grooves, which can increase the contact area with other pads, and because the compression belt only fits the uppermost and lowermost sides of the three-layer pad, the surface of the three-layer pad can be quickly cooled and shaped, while the interior still maintains a high temperature, thereby improving the composite strength of the hot melt.

Description

Technical Field

[0001] The invention relates to the technical field of pad processing, in particular to a flame retardant paving pad production device. Background Art

[0002] With the advancement of science and technology and the enhancement of green environmental awareness, the application of flame-retardant paving pads in underground coal mine operations has received more and more attention. It not only has excellent flame-retardant properties, but also can recycle plastic waste and improve resource utilization.

[0003] A Chinese invention with publication number CN109648882B discloses a production device for paving pads, which can produce road pads made of three-layer plates. The road pads produced by the equipment have the advantages of strong load-bearing capacity, light weight and long service life.

[0004] However, at present, when three-layer pads are composited, two of the pads are usually heated and extruded to obtain a double-layer structure, and then the third layer is heated and extruded through the same process to obtain a three-layer structure. During this process, the pad surface is exposed to the outside, which is easy to adhere to dust and affect the subsequent composite strength. In addition, the pad surface is exposed to the outside, and its own surface temperature gradually decreases, and the time required for extrusion and hot melting is longer, resulting in low composite efficiency. To this end, the present invention proposes a flame-retardant paving pad production equipment to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a flame retardant paving pad production device to solve the problems of low composite strength and efficiency of traditional three-layer pads mentioned in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a flame retardant paving pad production device, comprising:

[0007] A molding component, wherein the molding component includes a composite bin, one side of the composite bin is provided with a discharge port, and the other side is provided with a feed port 1 and two feed ports 2, the two feed ports 2 are symmetrically distributed on the upper and lower sides of the feed port 1, and a "V"-shaped structure is formed between the feed ports 2 and the feed port 1 and are interconnected, the upper and lower inner walls of the feed port 1 are provided with convex blocks, and the opening ends of the feed port 1 and the feed port 2 are connected with an extrusion bin, and the extrusion bin squeezes the molten raw material into the composite bin;

[0008] A guide frame, the composite bin is located at one end of the guide frame and is connected thereto, through grooves are provided on the upper and lower sides of the guide frame, a cooling assembly is provided on the outer side of the guide frame, the cooling assembly includes two compression belts, the two compression belts are respectively located on the upper and lower sides of the guide frame and are adapted to the through grooves.

[0009] Preferably, the cross-section of the extrusion bin is drop-shaped and hollow inside, the opening sides of the three extrusion bins are respectively connected to the opening ends of feed port one and two feed ports two, the inner cavity of the extrusion bin is rotatably installed with an inner cylinder with a gap left between the two, the inner cavity of the inner cylinder is rotatably installed with an auger conveying blade, and the auger conveying blade rotates in the opposite direction to the inner cylinder, a discharge groove is provided on the surface of the inner cylinder, and a plurality of extrusion blades distributed in a ring array are fixedly installed on the surface of the inner cylinder, and the extrusion blades are arc-shaped and inclined.

[0010] Preferably, a conveying outer cylinder is fixedly installed on the outside of one end of the extrusion bin, one end of the auger conveying blade extends to the inner cavity of the conveying outer cylinder, a hollow disk is provided on the outside of the other end of the extrusion bin, and the hollow disk is fixedly connected to the end of the inner cylinder, and an extension shaft is provided on the other end of the auger conveying blade, the extension shaft extends to the outside of the other end of the extrusion bin and movably passes through the hollow disk, a driven gear ring is fixedly sleeved on the outside of the extension shaft, and the driven gear ring is located at the center of the inner cavity of the hollow disk, an inner gear ring is provided on the inner side wall of the hollow disk, and a transmission connection is maintained between the hollow disk and the driven gear ring through a transmission gear.

[0011] Preferably, a mounting frame is provided on the outer side of the hollow disk, and the mounting frame is fixedly connected to the end face of the extrusion bin, and the transmission gear is rotatably mounted on the mounting frame, and at least two transmission gears are provided and maintained in a circular array distribution, and a polygonal slot is provided on the end face of the auger conveying blade shaft, and a polygonal column is fixed to one end of the extension shaft, and the polygonal column is movably inserted into and adapted to the inner cavity of the polygonal slot, and a bolt groove is provided on the other end face of the extension shaft, and after the polygonal column is inserted into the inner cavity of the polygonal slot, it is fixedly connected thereto by bolts.

[0012] Preferably, cooling rollers and driving rollers are respectively provided at both ends of the inner side of the compression belt, and side plates are provided on both sides of the compression belt, and the cooling rollers and driving rollers are rotatably connected to the side plates.

[0013] Preferably, the inner cavity of the cooling roller is provided with a spacer cylinder concentric therewith, and a plurality of guide vanes distributed in a ring array are fixedly provided between the spacer cylinder and the cooling roller, and the guide vanes are in a spiral structure around the surface of the spacer cylinder.

[0014] Preferably, the barrier tube is a hollow structure, and partitions are fixedly installed near the two end surfaces of the inner cavity of the barrier tube. Both ends of the surface of the barrier tube are penetrated by a plurality of through holes distributed in a circular array, and the through holes connect the inner and outer sides of the barrier tube. A circulation pipe 1 is provided at one end of the cooling roller, and the circulation pipe 1 is connected to the end inner cavity of the barrier tube.

[0015] Preferably, both ends of the circulation pipe one are respectively connected to the ends of the upper and lower cooling rollers through a rotating joint, and a plurality of cooling branch pipes distributed at equal intervals are arranged on the inner side of the compression belt. The cooling branch pipes are attached to the inner wall of the compression belt close to the guide frame, and the ends of the cooling branch pipes are movably connected to the side plate. The outer side of the side plate is provided with a circulation pipe two, and the circulation pipe two connects the ends of the two cooling branch pipes at corresponding upper and lower positions together through a rotating joint.

[0016] Preferably, a circulating cooling pipe is arranged on the outer side of the other end of the cooling roller, and the other ends of the cooling roller and the cooling branch pipe are both connected to an external cooler through the circulating cooling pipe.

[0017] Preferably, a conveying frame is provided at the other end of the guide frame, and a plurality of conveying rollers are provided on the conveying frame for conveying the pad product.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention is provided with a composite bin at one end of a guide frame, and a feed port 1 and two symmetrically distributed feed ports 2 are provided at one end of the composite bin, and upper and lower inner walls of the feed port 1 are provided with protrusions, and the upper and lower surfaces of the pad formed by extrusion in the inner cavity of the feed port 1 can form a plurality of strip-shaped grooves, which can increase the contact area with other pads, and the pad formed by the feed port 1 and the two pads formed by the feed port 2 can be bonded at the first time, on the one hand, to avoid the temperature reduction of the bonding surface, and on the other hand, to avoid dust adhesion to the bonding surface, and then the compression belts on the upper and lower sides of the guide frame are used to compress, composite and surface cool the three-layer pad. Since the compression belts are only in contact with the upper and lower sides of the three-layer pad, the surface of the three-layer pad can be quickly cooled and shaped, while the interior still maintains a high temperature, thereby improving the composite strength of the hot melt. Compared with the production of traditional three-layer pads, the efficiency of the device and the strength of the product are higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a three-dimensional schematic diagram of the structure of the molding component of the present invention;

[0022] Figure 3 This is a half-section schematic diagram of the composite warehouse structure of the present invention;

[0023] Figure 4 This is an exploded schematic diagram of the extrusion chamber structure of the present invention;

[0024] Figure 5 A half-section schematic diagram of the extrusion bin structure of the present invention;

[0025] Figure 6It is an exploded schematic diagram of the driven gear ring and the auger conveying blade structure of the present invention;

[0026] Figure 7 It is a three-dimensional schematic diagram of the cooling assembly and the guide frame structure of the present invention;

[0027] Figure 8 A half-section schematic diagram of the cooling assembly structure of the present invention;

[0028] Fig. 9 It is a partially cutaway schematic diagram of the cooling roller structure of the present invention;

[0029] Fig.10 It is a partially cutaway schematic diagram of the interlayer tube structure of the present invention;

[0030] Fig.11 It is a three-dimensional schematic diagram of the guide frame structure of the present invention.

[0031] In the figure: 1. forming component; 2. extrusion bin; 21. inner cylinder; 211. discharge trough; 212. extrusion blade; 22. auger conveying blade; 221. conveying outer cylinder; 222. polygonal slot; 23. extension shaft; 231. polygonal cylinder; 232. bolt slot; 24. driven gear ring; 25. transmission gear; 26. hollow disk; 27. mounting frame; 3. composite bin; 31. discharge port; 32. feed port 1; 321. bump; 33. feed port 2; 4. cooling component; 41. pressing belt; 42. cooling roller; 421. circulation pipe 1; 422. interlayer cylinder; 423. guide blade; 424. partition; 425. through hole; 43. driving roller; 44. cooling branch pipe; 441. circulation pipe 2; 45. side plate; 5. guide frame; 51. through slot; 6. conveying frame. DETAILED DESCRIPTION

[0032] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0036] See also Figures 1 to 11 , the present invention provides a technical solution:

[0037] Embodiment 1, a flame retardant paving plate production device, comprises: a forming component 1 and a guide frame 5.

[0038] Specifically, the molding component 1 includes a composite bin 3, one side of the composite bin 3 is provided with a discharge port 31, and the other side is provided with a feed port 1 32 and two feed ports 2 33, the two feed ports 2 33 are respectively located on the upper and lower sides of the feed port 1 32 and are symmetrically distributed, and a "V"-shaped structure is formed between the feed port 2 33 and the feed port 1 32 and are interconnected, such as Figure 2 and Figure 3As shown, the thickness of the inner cavity of the feed port 1 32 and the feed port 2 33 is consistent and smaller than the thickness of the inner cavity of the discharge port 31. The feed port 1 32 is used to convey the molten flame retardant material (the formed pad is marked as pad A), and the feed port 2 33 is used to convey the molten plastic waste (the formed pad is marked as pad B). The molten raw material gradually cools down to a semi-solidified state when flowing in the inner cavity of the feed port 1 32 (or the feed port 2 33). At this time, the pad A (or pad B) is gradually formed. Then it enters the inner cavity of the discharge port 31. In the inner cavity of the discharge port 31, the pad A is located between the two pads B. The joints between the two pads are not exposed to the air and will not be affected by dust. In addition, each pad is initially formed and the surface has not yet completely solidified. When they are bonded to each other, they can be welded and composited faster. In addition, protrusions 321 are provided on the upper and lower inner walls of the feed port 32. There are multiple protrusions 321 and they are evenly spaced. The protrusions 321 on the upper and lower sides are staggered. Figure 3 As shown, the arrangement of the protrusion 321 enables a plurality of strip-shaped grooves to be formed on both the upper and lower surfaces of the pad A, and the grooves on the upper and lower surfaces of the pad A are staggered with each other, so that the entire cross-section of the pad A presents a wavy structure (combined with Figure 8 As shown), when the pad A and the pad B are in contact with each other, the contact area between the two can be increased, thereby improving the strength of the welded composite. It should be noted that the side of the pad B close to the pad A can also be formed into a strip groove by the same processing method as the pad A, so as to be more perfectly composited with the pad A. Even if the side of the pad B close to the pad A is not formed with a strip groove, since the pad has not been completely solidified at this time, when the pad B is squeezed and closely fits with the pad A, the two can still be well composited. In addition, the opening ends of the feed port 1 32 and the feed port 2 33 are both connected to the extrusion bin 2, and the extrusion bin 2 squeezes the molten raw material into the interior of the composite bin 3;

[0039] Furthermore, the composite bin 3 is located at one end of the guide frame 5 and is connected thereto. A through slot 51 is provided on both the upper and lower sides of the guide frame 5. A cooling assembly 4 is provided on the outer side of the guide frame 5. The cooling assembly 4 includes two compression belts 41. The two compression belts 41 are respectively located on the upper and lower sides of the guide frame 5 and are adapted to the through slot 51. Figure 8As shown, after pad A and pads B on its upper and lower sides are compounded inside the compound bin 3, they are conveyed into the inner cavity of the guide frame 5, and two pressing belts 41 extrude the two pads B from the upper and lower sides respectively. At this time, the outer surfaces of the two pads B are quickly cooled and formed, while the contact surface between pad A and pad B remains in a semi-solidified state and is fully welded and compounded under the action of the extrusion force. At the same time, the pressing belt 41 can also convey the three-layer pads. Since the outer surface of pad B has been cooled and formed, it has a certain strength and toughness and will not be torn due to the conveyance of the pressing belt 41. Furthermore, the pressing belt 41 has a large surface area, and the extrusion force can be applied to the outer surface of pad B more evenly.

[0040] In order to convey the molten raw materials, the cross-section of the extrusion bin 2 of the present application is teardrop-shaped and hollow inside. The opening sides of the three extrusion bins 2 are respectively connected to the opening ends of the feed port 1 32 and the two feed ports 2 33, which are used to convey the molten raw materials. An inner cylinder 21 is rotatably installed in the inner cavity of the extrusion bin 2 with a gap left between the two. An auger conveying blade 22 is rotatably installed in the inner cavity of the inner cylinder 21, and the auger conveying blade 22 rotates in the opposite direction to the inner cylinder 21. A discharge groove 211 is provided on the surface of the inner cylinder 21, and a plurality of extrusion blades 212 distributed in a ring array are fixedly installed on the surface of the inner cylinder 21. The extrusion blades 212 are arc-shaped and inclined. Figure 4 and Figure 5 As shown, when the auger conveying blades 22 rotate, they are used to convey the molten raw materials after external stirring and mixing into the inner cavity of the inner cylinder 21, and then discharge them from the discharge groove 211 to the gap between the inner cylinder 21 and the extrusion bin 2. The extrusion blades 212 can extrude the molten raw materials as the inner cylinder 21 rotates, so that the molten raw materials are finally squeezed out from the opening on the side of the extrusion bin 2, and then enter the inner cavity of the composite bin 3. The rotation direction of the inner cylinder 21 is opposite to that of the auger conveying blades 22, so the auger conveying blades 22 can normally convey the molten raw materials.

[0041] In order to realize the synchronous reverse rotation of the inner cylinder 21 and the auger conveying blade 22, the present application also has a conveying outer cylinder 221 fixedly installed on the outer side of one end of the extrusion bin 2, one end of the auger conveying blade 22 extends to the inner cavity of the conveying outer cylinder 221, and the conveying outer cylinder 221 is connected to the external stirring device, and the molten raw material in the stirring device is conveyed to the inner cavity of the inner cylinder 21 by the rotation of the auger conveying blade 22, and then extrusion molding is performed. A hollow disk 26 is arranged on the outer side of the other end of the extrusion bin 2, and the hollow disk 26 and the end of the inner cylinder 21 are connected. That is to say, when the hollow disk 26 rotates, it can drive the inner cylinder 21 to rotate accordingly. The other end of the auger conveying blade 22 is provided with an extension shaft 23, which extends to the outside of the other end of the extrusion chamber 2 and movably passes through the hollow disk 26. The outer fixed sleeve of the extension shaft 23 is provided with a driven gear ring 24, and the driven gear ring 24 is located at the center of the inner cavity of the hollow disk 26. The inner side wall of the hollow disk 26 is provided with an inner gear ring. The hollow disk 26 and the driven gear ring 24 are connected to each other through a transmission gear 25. Figure 4 and Figure 6 As shown, when the auger conveying blade 22 rotates, the extension shaft 23 and the driven gear ring 24 rotate synchronously therewith, and the driven gear ring 24 can drive the hollow disk 26 to rotate synchronously in the opposite direction through the transmission of the transmission gear 25, thereby driving the inner cylinder 21 to rotate. Therefore, the inner cylinder 21 of the present device can maintain synchronous reverse rotation with the auger conveying blade 22, and then the start and stop are controlled by the driving motor at one end of the auger conveying blade 22.

[0042] In order to fix the extension shaft 23 with the auger conveying blade 22, the present application also has a mounting bracket 27 arranged on the outer side of the hollow disk 26, the mounting bracket 27 is fixedly connected to the end face of the extrusion chamber 2, and the transmission gear 25 is rotatably mounted on the mounting bracket 27, that is, the position of the transmission gear 25 itself remains fixed, and the driven gear ring 24 can drive the hollow disk 26 to rotate synchronously in the opposite direction through the transmission action of the transmission gear 25 when rotating. The transmission gear 25 is provided with at least two and maintained in an annular array distribution, so as to improve the transmission stability of the transmission gear 25. A polygonal slot 222 is provided on the end face of the rotating shaft of the auger conveying blade 22, and a polygonal column 231 is fixed on one end of the extension shaft 23, and the polygonal column 231 is movably inserted into the inner cavity of the polygonal slot 222 and adapted thereto, and a bolt groove 232 is provided on the other end face of the extension shaft 23, and the polygonal column 231 is inserted into the inner cavity of the polygonal slot 222 and is fixedly connected thereto by bolts, such as Figure 6 As shown, after the polygonal column 231 is inserted into the inner cavity of the polygonal slot 222, the extension shaft 23 can rotate synchronously with the auger conveying blade 22. After the polygonal column 231 is fixed to the inner cavity of the polygonal slot 222 by bolts, the extension shaft 23 can remain relatively fixed with the auger conveying blade 22 and will not separate from each other.

[0043] In order to reduce the surface temperature of the compression belt 41, the present application also has a cooling roller 42 and a driving roller 43 respectively arranged at both ends of the inner side of the compression belt 41, and side plates 45 are arranged on both sides of the compression belt 41. The cooling roller 42 and the driving roller 43 are rotatably connected to the side plates 45. After the cooling roller 42 and the driving roller 43 are positioned, they are used to tighten the compression belt 41. When the compression belt 41 is conveyed, the cooling roller 42 can cool the compression belt 41 to reduce the surface temperature of the compression belt 41. When the compression belt 41 contacts the surface of the pad B in the inner cavity of the guide frame 5, the surface of the pad B can be quickly cooled, thereby ensuring that the surface of the pad B is quickly shaped and preventing the compression belt 41 from tearing and damaging the pad B during transportation. In addition, in order to form a friction pattern structure on the surface of the pad B to increase friction, some small recessed structures can be evenly arranged on the surface of the compression belt 41.

[0044] In order to cool and exchange heat for the cooling roller 42, the present application also has an inner cavity of the cooling roller 42 provided with a concentric interlayer cylinder 422, and a plurality of guide blades 423 distributed in an annular array are fixedly provided between the interlayer cylinder 422 and the cooling roller 42, and the guide blades 423 are spirally structured around the surface of the interlayer cylinder 422, such as Fig. 9 and Fig.10 As shown, the cooling gas can flow in the gap between the interlayer cylinder 422 and the cooling roller 42, and the guide vanes 423 are used to guide the flow of the cooling gas, extend the flow path of the cooling gas, and improve the cooling and heat exchange effect on the cooling roller 42. Moreover, compared with the entire inner cavity volume of the cooling roller 42, the volume of the gap between the interlayer cylinder 422 and the cooling roller 42 is smaller, and only a smaller amount of cooling gas is needed to achieve a good cooling and heat exchange effect on the cooling roller 42.

[0045] In order to ensure that the surface temperatures of the two cooling rollers 42 are relatively consistent, the interlayer cylinder 422 of the present application is a hollow structure, and a partition plate 424 is fixedly installed near the two end surfaces of the inner cavity of the interlayer cylinder 422. Both ends of the surface of the interlayer cylinder 422 are penetrated by a plurality of through holes 425 distributed in a circular array, and the through holes 425 connect the inner and outer sides of the interlayer cylinder 422. Fig.10 As shown, the partition plate 424 separates the end and the middle of the inner cavity of the interlayer cylinder 422. After the cooling gas enters the inner cavity at the end of the interlayer cylinder 422, it passes through the through hole 425 and enters the gap between the interlayer cylinder 422 and the cooling roller 42. A circulation pipe 421 is provided at one end of the cooling roller 42, and the circulation pipe 421 is connected to the inner cavity at the end of the interlayer cylinder 422. Fig. 9 As shown, the cooling gas flow path is: flowing from the interior of the upper cooling roller 42 to the circulation pipe 1 421, and then flowing into the interior of the lower cooling roller 42, thereby ensuring that the surface temperatures of the two cooling rollers 42 are relatively consistent.

[0046] In order to support the inner wall of the compression belt 41, the present application also has two ends of the circulation pipe 421 connected to the ends of the upper and lower cooling rollers 42 through a rotating joint to ensure that the setting of the circulation pipe 421 does not affect the normal rotation of the cooling roller 42. A plurality of cooling branches 44 are arranged on the inner side of the compression belt 41 at equal intervals. The cooling branch 44 is attached to the inner wall of the compression belt 41 close to the guide frame 5. The end of the cooling branch 44 is movably connected to the side plate 45. Figure 8 and Fig. 9 As shown, the cooling branch pipe 44 is used to support the inner wall of the compression belt 41. The reaction force generated by the pad on the compression belt 41 causes the compression belt 41 to dent inward. A circulation pipe 441 is provided on the outer side of the side plate 45. The circulation pipe 441 connects the ends of the two cooling branch pipes 44 at corresponding upper and lower positions through a rotating joint. Cooling gas also flows inside the cooling branch pipe 44, which can further cool the compression belt 41 for heat exchange.

[0047] In order to ensure the circulation of the cooling gas inside the cooling component 4, the present application also has a circulating cooling pipe arranged on the outside of the other end of the cooling roller 42. The other ends of the cooling roller 42 and the cooling branch pipe 44 are connected to the external cooler through the circulating cooling pipe. In other words, the external cooler forms a circulation with the cooling component 4 of the device to ensure that the cooling gas can circulate.

[0048] In order to transport the three-layer pad, the present application also has a conveying frame 6 arranged at the other end of the guide frame 5, and a plurality of conveying rollers are arranged on the conveying frame 6 to transport the pad product, such as Figure 1 As shown, the three-layer pad after composite molding is transported out from the other end of the guide frame 5 and falls onto the conveying rack 6 for transportation. During the transportation process, the internal temperature of the three-layer pad gradually decreases until it is formed. At the end of the conveying rack 6, a cutting device known in the prior art (not shown in the figure) is also provided to cut the three-layer pad.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flame retardant paving pad production equipment, characterized by: include: A molding component (1), the molding component (1) comprising a composite bin (3), one side of the composite bin (3) being provided with a discharge port (31), and the other side being provided with a feed port 1 (32) and two feed ports 2 (33), the two feed ports 2 (33) being symmetrically distributed on the upper and lower sides of the feed port 1 (32), the feed ports 2 (33) and the feed port 1 (32) forming a "V"-shaped structure and being interconnected, the upper and lower inner walls of the feed port 1 (32) being provided with protrusions (321), the open ends of the feed port 1 (32) and the feed port 2 (33) being connected with an extrusion bin (2), the extrusion bin (2) extruding the molten raw material into the interior of the composite bin (3); A guide frame (5), wherein the composite bin (3) is located at one end of the guide frame (5) and is in communication therewith, through grooves (51) are provided on both upper and lower sides of the guide frame (5), a cooling assembly (4) is provided on the outer side of the guide frame (5), and the cooling assembly (4) comprises two pressing belts (41), wherein the two pressing belts (41) are respectively located on the upper and lower sides of the guide frame (5) and are adapted to the through grooves (51); The cross section of the extrusion bin (2) is in the shape of a water drop and is hollow inside. The opening sides of the three extrusion bins (2) are respectively connected to the opening ends of the first feed port (32) and the second feed ports (33). The inner cavity of the extrusion bin (2) is rotatably mounted with an inner cylinder (21) with a gap left between the two. The inner cavity of the inner cylinder (21) is rotatably mounted with an auger conveying blade (22), and the auger conveying blade (22) rotates in the opposite direction to the inner cylinder (21). A discharge groove (211) is provided on the surface of the inner cylinder (21). A plurality of extrusion blades (212) distributed in a ring array are fixedly mounted on the surface of the inner cylinder (21). The extrusion blades (212) are arc-shaped and inclined.

2. The flame retardant paving plate production equipment according to claim 1, characterized in that: A conveying outer cylinder (221) is fixedly mounted on the outside of one end of the extrusion bin (2); one end of the auger conveying blade (22) extends to the inner cavity of the conveying outer cylinder (221); a hollow disk (26) is arranged on the outside of the other end of the extrusion bin (2), and the hollow disk (26) is fixedly connected to the end of the inner cylinder (21); an extension shaft (23) is arranged on the other end of the auger conveying blade (22); the extension shaft (23) extends to the outside of the other end of the extrusion bin (2) and movably penetrates the hollow disk (26); a driven gear ring (24) is fixedly sleeved on the outside of the extension shaft (23), and the driven gear ring (24) is located at the center of the inner cavity of the hollow disk (26); an inner gear ring is provided on the inner side wall of the hollow disk (26); and the hollow disk (26) and the driven gear ring (24) are in transmission connection via a transmission gear (25).

3. The flame retardant paving pad production equipment according to claim 2 is characterized by: A mounting frame (27) is provided on the outer side of the hollow disk (26), and the mounting frame (27) is fixedly connected to the end surface of the extrusion chamber (2). The transmission gear (25) is rotatably mounted on the mounting frame (27). At least two transmission gears (25) are provided and are distributed in a ring array. A polygonal slot (222) is provided on the end surface of the rotating shaft of the auger conveying blade (22). A polygonal column (231) is fixed to one end of the extension shaft (23), and the polygonal column (231) is movably plugged into and adapted to the inner cavity of the polygonal slot (222). A bolt groove (232) is provided on the other end surface of the extension shaft (23), and the polygonal column (231) is inserted into the inner cavity of the polygonal slot (222) and is fixedly connected to the inner cavity of the polygonal slot (222) by means of bolts.

4. The flame retardant paving pad production equipment according to claim 1, characterized in that: A cooling roller (42) and a driving roller (43) are respectively arranged at the two ends of the inner side of the compression belt (41), and side plates (45) are arranged on both sides of the compression belt (41), and the cooling roller (42) and the driving roller (43) are both rotatably connected to the side plates (45).

5. The flame retardant paving mat production equipment according to claim 4, characterized in that: The inner cavity of the cooling roller (42) is provided with a spacer cylinder (422) which is concentric therewith, and a plurality of guide blades (423) distributed in a ring array are fixedly provided between the spacer cylinder (422) and the cooling roller (42), and the guide blades (423) are arranged around the surface of the spacer cylinder (422) in a spiral structure.

6. The flame retardant paving mat production equipment according to claim 5, characterized in that: The interlayer cylinder (422) is a hollow structure, and the inner cavity of the interlayer cylinder (422) is fixedly installed with partitions (424) near the two end surfaces. Both ends of the surface of the interlayer cylinder (422) are penetrated by a plurality of through holes (425) distributed in a circular array, and the through holes (425) connect the inner and outer sides of the interlayer cylinder (422). A circulation pipe (421) is provided at one end of the cooling roller (42), and the circulation pipe (421) is connected to the inner cavity of the end of the interlayer cylinder (422).

7. The flame retardant paving mat production equipment according to claim 6, characterized in that: The two ends of the circulation pipe 1 (421) are respectively connected to the ends of the upper and lower cooling rollers (42) through a rotating joint. A plurality of cooling branch pipes (44) are arranged on the inner side of the pressing belt (41) and are distributed at equal intervals. The cooling branch pipes (44) are attached to the inner wall of the pressing belt (41) close to the guide frame (5). The ends of the cooling branch pipes (44) are movably connected to the side plate (45). The outer side of the side plate (45) is provided with a circulation pipe 2 (441). The circulation pipe 2 (441) connects the ends of the two cooling branch pipes (44) at corresponding upper and lower positions together through a rotating joint.

8. The flame retardant paving plate production equipment according to claim 7, characterized in that: A circulating cooling pipe is arranged on the outside of the other end of the cooling roller (42), and the other ends of the cooling roller (42) and the cooling branch pipe (44) are both connected to an external cooler through the circulating cooling pipe.

9. The flame retardant paving mat production equipment according to claim 1, characterized in that: A conveying frame (6) is provided at the other end of the guide frame (5); a plurality of conveying rollers are provided on the conveying frame (6) for conveying the pad product.

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