LVT flat double production line

Abstract

The utility model discloses an LVT flat double production line, and relates to the field of floor production, an output port of an extruder is connected with a die extrusion head, and extruded raw materials are fed into a five-roller calender; the five-roller calender receives the extruded raw materials, base material shaping is conducted through a five-roller structure, and a bottom film coating device is arranged on the lower portion and used for bottom film pasting; an upper film laminating device is arranged at the upper part of the five-roller calender, and a prepared upper laminating film is adhered to the upper surface of the sizing base material; the chain net conveyor is connected with the output end of the five-roller calender and is used for receiving the shaped base material coated with the bottom film; the warm roller machine receives the upper covering film conveyed by the upper film covering device and the sizing base material covered with the bottom film, and the upper covering film is pasted to the sizing base material and the surface for sizing; the cooling conveying line is connected to the tail end of the chain net conveyor, the warm roller machine is arranged on the cooling conveying line, and the shaped base material is cooled and conveyed to the traction device to be transferred. The production line is high in automation degree, the substrate forming and shaping efficiency is improved, and production is accelerated.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of floor production machinery, and in particular to an LVT flat double production line. Background Art

[0002] LVT flat double production line is used to produce LVT flooring, which has good fire resistance and impact resistance. The base layer of LVT flooring on the market is usually made of PVC and mineral powder such as stone powder and other additives such as plasticizers.

[0003] In related technologies, the automation efficiency between various devices in traditional LVT flat double production lines is low, and the cooling effect after loading and shaping is slow, which affects subsequent cutting and assembly. Therefore, production efficiency needs to be improved. Utility Model Content

[0004] The present invention provides an LVT flat double production line to address the issues of low automation and production efficiency of LVT flooring. The LVT flat double production line includes an extruder, a five-roll calender, a laminating device, a chain conveyor, a cooling conveyor line, a warm roller, and a traction device. The output port of the extruder is connected to a die extrusion head, through which the extruded raw material is fed into the five-roll calender.

[0005] The five-roll calender receives the extruded raw material and performs calendering and shaping of the substrate through the five-roll structure. A base film coating device is provided at the bottom for laminating the base film. An upper laminating device is also provided at the top of the five-roll calender, and the upper laminating device adheres the prepared upper laminating film to the upper surface of the shaped substrate.

[0006] The chain conveyor is connected to the output end of the five-roll calender, receives the shaped substrate after being coated with the bottom film, and transports it to the cooling conveyor line;

[0007] The warm roller receives the shaped substrate after lamination and performs surface shaping;

[0008] The cooling conveyor line is connected to the end of the chain conveyor, and the warm roller machine is arranged on the cooling conveyor line. The upper and lower coated and shaped substrates are cooled and transported to the traction device; the traction device is arranged at the end of the cooling conveyor line to traction and transport the shaped substrates.

[0009] Specifically, the extruder is an MT95 extruder, which is provided with a feeder. The raw materials are fed into the interior from the feeder for mixing and extrusion, and are then extruded from the die extrusion head.

[0010] Specifically, a cooling bracket is provided on the cooling conveyor line, and a cooling water tank is provided below the cooling bracket.

[0011] Specifically, a chiller is provided between the cooling bracket and the cooling water tank for injecting cold water into the cooling water tank.

[0012] Specifically, a trimming knife is provided on the cooling conveyor line for trimming the plate.

[0013] Specifically, the upper film coating device conveys the upper film to the rollers of the five-roll calender, and the bottom film coating device conveys the bottom film to the rollers of the five-roll calender.

[0014] Specifically, the extruder is also connected to a main electrical box.

[0015] Specifically, a cutting machine is further provided at the rear stage of the cooling conveyor line, and a slow cooling zone is provided between the cutting machine and the traction device. The plate material passing through the traction device is pulled and cooled and then sent to the cutting machine for cutting.

[0016] Specifically, a lifting platform is provided at the rear stage of the cutting machine to receive the plates cut by the cutting machine.

[0017] Specifically, a water-cooling fan is provided below the cooling bracket to cool the formed substrate.

[0018] The beneficial effects brought about by the technical solution provided by the present application include at least: an automatic feeder is set on the extruder, which automatically feeds the material according to the extrusion and stirring process of the machine, and the extruded raw materials are transported through the die extrusion head. The extruded raw materials are coated with a base film and an upper film respectively through a five-roll calender and an upper laminating device. The setting of the warm roller machine can ensure that the substrate will not harden during the process of conveying the coated film. The laminated substrate is cooled and shaped through a cooling conveyor line, and then loaded and transported through a traction device. In the entire production process, the steps of substrate forming, film lamination, shaping, cooling cutting and loading are all completed through an automated production line, replacing the complex and fragmented processing process of traditional LVT flooring, and the space occupied and cost investment are reduced, the operation is convenient, and the production efficiency is also higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the LVT flat double production line provided in an embodiment of the present application;

[0020] Figure 2 1. It is a top view of the LVT flat double production line provided in an embodiment of the present application;

[0021] Figure 3 This is an enlarged view of the extruder and the five-roller calender in the main view provided in the embodiment of the present application;

[0022] Figure 4 yes Figure 1 Enlarged view of the trimming knife at A in the middle;

[0023] Figure 5 This is a partial enlarged view of the cooling conveyor line.

[0024] Figure markings: 10-extruder, 11-die extrusion head, 12-feeder, 13-main electrical box, 20-five-roll calender, 21-base film coating device, 30-upper laminating device, 40-chain conveyor, 50-cooling conveyor line, 51-cooling bracket, 52-cooling water trough, 53-chiller, 54-edge trimming knife, 55-water cooling fan, 60-warm roller machine, 70-traction device, 80-cutting machine, 90-lifting platform. DETAILED DESCRIPTION

[0025] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0026] In this document, "plurality" refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0027] like Figure 1 It is a main view of the LVT flat double production line provided in an embodiment of the present application. The production line includes an extruder 10, a die extrusion head 11 arranged at the output port of the extruder 10, a five-roll calender 20 for receiving the extruded raw materials, an upper film coating device 30, a chain conveyor 40, a cooling conveyor line 50, a warm roller machine 60, and a traction device 70. The extruder 10 is the starting part of the production line. The main part transports the raw materials into the interior for mixing and then extrusion. The extrusion part is equipped with a die extrusion head 11. The die extrusion head 11 spits out the raw materials after thermoplasticization, which are then fed into the five-roll calender 20 cascaded at the rear.

[0028] like Figure 3 As shown, the upper and lower parts of the five-roll calender 20 are respectively provided with an upper laminating device 30 and a bottom film coating device 21. The five-roll structure of the five-roll calender 20 performs base material calendering and shaping on the raw material, while the bottom film coating device 21 below coats the bottom of the shaped substrate with a bottom film. Correspondingly, the upper laminating device 30 above the five-roll calender 20 is used to coat the upper surface of the substrate with an upper film. Note that the bottom film and the upper laminating are carried out simultaneously and are transported from the top and bottom to the calender rollers for shaping, respectively. The upper laminating device 30 conveys the upper laminating film to the rollers of the five-roll calender 20, and the bottom film coating device 21 conveys the bottom film to the rollers of the five-roll calender 20.

[0029] The warm roller machine 60 is arranged at the output end of the five-roll calender 20, receives the plate through the rollers and shapes the plate.

[0030] The cooling conveyor line 50 is connected to the end of the chain conveyor 40, and the warm roller machine 60 is set on the cooling conveyor line 50. The upper and lower coated and shaped substrates are cooled and transported to the traction device 70. The traction device 70 is set at the end of the cooling conveyor line 50 to traction and transport the shaped substrates.

[0031] The warm roller machine 60 is arranged above the cooling conveyor line 50 and close to the end of the chain conveyor 40. The cooling conveyor line 50 conveys the substrate into the warm roller machine 60 and is shaped by the warm roller machine 60.

[0032] like Figure 5 As shown, the cooling conveyor line 50 is mainly used to cool and transport the substrate, and specifically includes a cooling bracket 51 and a cooling water tank 52 arranged below. The cooling water tank 52 is provided with a low-temperature circulating water flow for cooling and shaping the substrate.

[0033] In some possible embodiments, a chiller 53 may be further provided on the cooling conveying line 50 , that is, the chiller is located on the cooling water tank to form circulating cold water, thereby achieving a rapid cooling effect.

[0034] In other embodiments, in order to increase the cooling effect, a water-cooling fan 55 may be provided under the cooling bracket 51. The cooling fan 55 is placed in a water tank and blows the low temperature brought by the cold water toward the substrate to accelerate the cooling.

[0035] In addition, a trimming knife 54 is provided on the cooling bracket 51 near the exit of the five-roll calender 20, see Figure 4 It can be seen that the trimming knife 54 can trim the substrate according to size requirements.

[0036] See also Figure 2 As shown, in some embodiments, the extruder is an MT95 extruder, which is also connected to a main electrical box 13 for controlling the on / off operation of the device. A cutting machine 80 is also provided at the downstream stage of the cooling conveyor line 50. A slow cooling zone is provided between the cutting machine 80 and the traction device 70. The sheet material passing through the traction device 70 is towed and cooled before being fed to the cutting machine 80 for cutting. A lifting platform 90 is provided at the downstream stage of the cutting machine 80 to receive the sheet material cut from the cutting machine 80.

[0037] In summary, the present application sets an automatic feeder on the extruder, automatically feeds according to the extrusion and stirring process of the machine, and conveys the extruded raw materials through the die extrusion head. The extruded raw materials are coated with a base film and an upper film respectively through a five-roll calender and an upper laminating device. The setting of the warm roller machine can ensure that the substrate will not harden during the process of conveying the coated film. The laminated substrate is cooled and shaped through a cooling conveyor line, and then loaded and conveyed through a traction device. In the entire production process, the steps of substrate forming, film lamination, shaping, cooling cutting and loading are all completed through an automated production line, replacing the complex and fragmented processing process of traditional LVT flooring, and the occupied space and cost investment are reduced, the operation is convenient, and the production efficiency is also higher.

[0038] The above describes the preferred embodiments of the present invention; it should be understood that the present invention is not limited to the above-mentioned specific implementation methods, and the equipment and structures that are not described in detail should be understood to be implemented in a common manner in the field; any technician familiar with the field can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention; therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. An LVT flat double production line, characterized in that: It comprises an extruder (10), a five-roll calender (20), an upper film coating device (30), a chain conveyor (40), a cooling conveyor line (50), a warm roller machine (60), and a traction device (70); the output port of the extruder (10) is connected to a die extrusion head (11), and the extruded raw material is fed into the five-roll calender (20) through the die extrusion head (11); The five-roll calender (20) receives the extruded raw material and performs calendering and shaping of the substrate through a five-roll structure. A bottom film coating device (21) is arranged at the bottom for laminating the bottom film. An upper laminating device (30) is also arranged at the top of the five-roll calender (20). The upper laminating device (30) adheres the prepared upper laminating film to the upper surface of the shaped substrate. The chain conveyor (40) is connected to the output end of the five-roll calender (20), receives the shaped substrate after being coated with the base film, and transports it to the cooling conveyor line (50); The warm roller machine (60) receives the shaped substrate after the coating and performs surface shaping; The cooling conveyor line (50) is connected to the end of the chain conveyor (40), and the warm roller machine (60) is arranged on the cooling conveyor line (50), and the substrate after upper and lower film coating and shaping is cooled and transported to the traction device (70); the traction device (70) is arranged at the end of the cooling conveyor line (50) to traction and transport the shaped substrate.

2. The LVT flat double production line according to claim 1, characterized in that: The extruder (10) is an MT95 extruder, which is provided with a feeder (12). The raw materials are fed into the interior from the feeder (12) for mixing and extrusion, and are extruded from the die extrusion head (11).

3. The LVT flat double production line according to claim 1, characterized in that: A cooling bracket (51) is provided on the cooling conveying line (50), and a cooling water tank (52) is provided below the cooling bracket (51).

4. The LVT flat double production line according to claim 3, characterized in that: A water chiller (53) is provided between the cooling water tanks (52) for injecting cold water into the cooling water tanks (52).

5. The LVT flat double production line according to claim 4, characterized in that: A trimming knife (54) is also provided on the cooling conveyor line (50) for trimming the plate.

6. The LVT flat double production line according to claim 1, characterized in that: The upper film coating device (30) conveys the upper film to the support rollers of the five-roll calender (20), and the bottom film coating device (21) conveys the bottom film to the support rollers of the five-roll calender (20).

7. The LVT flat double production line according to claim 1, characterized in that: The extruder (10) is also connected to a main electrical box (13).

8. The LVT flat double production line according to claim 4, characterized in that: A cutting machine (80) is also provided at the rear stage of the cooling conveyor line (50), and a slow cooling zone is provided between the cutting machine (80) and the traction device (70). The plate material passing through the traction device (70) is pulled and cooled and then sent to the cutting machine (80) for cutting.

9. The LVT flat double production line according to claim 8, characterized in that: A lifting platform (90) is provided at the rear stage of the cutting machine (80) to receive the plate material cut by the cutting machine (80).

10. The LVT flat double production line according to claim 5, characterized in that: A water cooling fan (55) is also provided below the cooling bracket (51) to cool the shaping substrate.

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