Sheet drying device for sheet extrusion production line

Abstract

The utility model relates to the technical field of sheet drying devices, and discloses a sheet drying device of a sheet extrusion production line, a drying mechanism comprises a hot air box seat, a sheet conveying belt, a material conveying roller column, a supporting roller column and a high-pressure air injection seat, and the material conveying roller column arranged in the drying box seat is used for conveying and driving sheets. The sheet is conveyed and supported through the oppositely-distributed supporting roller columns, so that the sheet is kept in a suspended conveying state on the drying box base, hot air can be comprehensively blown to the upper side and the lower side of the sheet, the drying effect of the sheet can be effectively improved, high-pressure air injection bases are arranged on the inner feeding side of the drying box base, the high-pressure air injection bases are distributed in an up-and-down opposite mode, and therefore the drying effect of the sheet can be effectively improved. According to the sheet drying device, liquid drops on the surfaces of the sheets can be blown away through high-pressure gas when the sheets are moved and conveyed in cooperation with the obliquely-arranged high-pressure nozzles, water attached to the upper portions of the sheets can be effectively removed in cooperation with hot air drying on the rear portion, no water mark residues exist on the surfaces of the dried sheets, and the drying effect and quality of the sheets are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet material drying devices, in particular to a sheet material drying device for a sheet material extrusion production line. Background Art

[0002] Plastic sheets are materials used to produce disposable plastic cups, plates, bowls, dishes, boxes and other thermoformed products. They are widely used in the packaging of food, vegetables, fruits, beverages, dairy products, industrial parts and other fields. In the plastic sheet extrusion production line, the sheet needs to go through a cooling process after extrusion molding, and water cooling is generally used to cool the sheet. Therefore, after the sheet is cooled, a small amount of water will adhere to the surface of the sheet. In order to facilitate subsequent operations and processing, the water on the surface of the sheet needs to be dried and removed through a drying device.

[0003] Due to the structural characteristics of the sheet, water will adhere to the upper and lower sides of the sheet. During the drying operation, the support of the conveyor belt requires the lower part of the sheet to be in contact with the conveyor belt. During the drying operation, it is difficult for the hot air to be blown to the lower part of the sheet, which can easily lead to the adhesion and residue of water and poor drying effect. In addition, since the water is mostly distributed in the form of droplets on the surface of the sheet, the droplets gather and easily leave dry water marks on the upper part of the sheet after drying, which affects the surface aesthetics of the sheet. Therefore, a sheet drying device for a sheet extrusion production line is proposed. Utility Model Content

[0004] The utility model aims to provide a sheet drying device for a sheet extrusion production line to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sheet drying device for a sheet extrusion production line, comprising a drying box seat, a drying mechanism is arranged inside the drying box seat, the drying mechanism comprises a hot air box seat, a sheet conveyor belt, a feed roller column, a support roller column and a high-pressure jet seat, the number of the hot air box seats is two, and the two hot air box seats are respectively installed on the upper and lower sides of the drying box seat;

[0006] The sheet conveyor belt is arranged on the side of the drying box seat, the feeding roller and the supporting roller are rotatably installed inside the drying box seat to realize suspended support for the sheet, the high-pressure jet seat is arranged on the feeding side of the drying box seat, and a high-pressure nozzle is obliquely arranged on the upper part of the high-pressure jet seat.

[0007] Preferably, the number of the sheet conveyor belts is two, and the two sheet conveyor belts are respectively installed on the inlet and outlet sides of the drying box seat.

[0008] Preferably, the above-mentioned feed rollers are provided in plurality, and a plurality of the feed rollers are equidistantly and evenly rotated and installed inside the drying box seat.

[0009] Preferably, the support rollers are rotatably mounted inside the drying box seat, the support rollers are located between two adjacent feed rollers, and the support rollers are arranged in a longitudinally opposed distribution.

[0010] Preferably, the two hot air box seats are respectively embedded and installed on the upper and lower sides of the middle part of the drying box seat, a drying heater is arranged inside the hot air box seat, and a blowing interface is arranged in the middle part of the hot air box seat.

[0011] Preferably, the number of the above-mentioned high-pressure jet seats is two, and the two high-pressure jet seats are arranged in an opposite manner, and the sides of the high-pressure jet seats are provided with mounting slopes, and there are multiple high-pressure nozzles, and several of the high-pressure nozzles are evenly fixed at an equal distance on the upper part of the mounting slope, and an air supply interface is fixed at the end of the high-pressure jet seat, and the air supply interface is connected to the high-pressure nozzle.

[0012] Preferably, a water baffle is provided on the side of the high-pressure jet seat, and the number of the water baffle is two, and the two water baffles are respectively fixed on the sides of the two high-pressure jet seats.

[0013] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0014] The drying device adopts a suspended support structure, utilizes a feeding roller column arranged in a drying box seat to drive and convey the sheet, and uses oppositely distributed support roller columns to support and convey the sheet, so that the sheet is kept in a suspended conveying state in the drying box seat. During the drying operation, hot air can be blown to the upper and lower sides of the sheet in an all-round way, which can effectively improve the drying effect of the sheet, and a high-pressure jet seat is arranged on the internal feeding side of the drying box seat. The high-pressure jet seat is oppositely distributed up and down, and cooperates with an inclined high-pressure nozzle. When the sheet is moved and conveyed, the high-pressure gas can be used to blow away the droplets on the surface of the sheet to avoid droplet aggregation. The hot air drying at the rear can effectively remove the water attached to the upper part of the sheet. After drying, there is no water mark remaining on the surface of the sheet, which greatly improves the drying effect and quality of the sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall upper structure of the utility model;

[0017] Figure 2It is a schematic diagram of the overall lower structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the drying box seat of the utility model;

[0019] Figure 4 For the utility model Figure 3 Schematic diagram of the structure of the middle A area;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the high-pressure jet seat of the utility model.

[0021] Explanation of the accompanying drawings: 1. Drying box seat; 2. Hot air box seat; 3. Sheet conveyor belt; 4. Feed roller; 5. Support roller; 6. High-pressure jet seat; 7. Drying heater; 8. Blowing interface; 9. High-pressure nozzle; 10. Air supply interface; 11. Water baffle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0024] Example

[0025] See also Figure 1-5 The utility model provides a technical solution: a sheet drying device for a sheet extrusion production line, comprising a drying box seat 1. In order to perform drying operations, a drying mechanism is arranged inside the drying box seat 1. The drying mechanism comprises a hot air box seat 2, a sheet conveyor belt 3, a feed roller column 4, a support roller column 5 and a high-pressure jet seat 6. Figure 1As shown, there are two hot air box seats 2, which are respectively embedded and installed on the upper and lower sides of the middle part of the drying box seat 1. The lower part of the hot air box seat 2 passes through the drying box seat 1. In order to heat the air, a drying heater 7 is arranged inside the hot air box seat 2. The drying heater 7 can be a PTC heater. As shown in the accompanying drawings, the drying heater 7 is installed on the air outlet side of the hot air box seat 2. In order to facilitate the passage of blowing air, a blowing interface 8 is arranged in the middle part of the hot air box seat 2, and the blowing interface 8 is connected to an external hair dryer through a hose.

[0026] The sheet conveyor belt 3 is used for feeding and conveying the sheet material. The number of the sheet conveyor belt 3 is two. Figure 3 As shown, two sheet conveyor belts 3 are respectively installed on the inlet and outlet sides of the drying box seat 1, the feed roller 4 is used for moving and conveying the sheet, and a plurality of feed rollers 4 are provided, and several feed rollers 4 are equidistantly and evenly rotated and installed inside the drying box seat 1, and the support rollers 5 are used for conveying and supporting the sheet, and the support rollers 5 are rotatably installed inside the drying box seat 1, and the support rollers 5 are located between two adjacent feed rollers 4, and the support rollers 5 are longitudinally opposed. The feed rollers 4 arranged in the drying box seat 1 are used to drive the sheet to be conveyed, and the oppositely distributed support rollers 5 are used to support the sheet to be conveyed, so that the sheet is kept in a suspended conveying state in the drying box seat 1. When the drying operation is performed, the hot air can be blown to the upper and lower sides of the sheet in an all-round manner, which can effectively improve the drying effect of the sheet.

[0027] In order to remove the droplets adhered to the surface of the sheet, a high-pressure jet seat 6 is arranged on the feeding side of the drying box seat 1. There are two high-pressure jet seats 6, which are arranged in an opposite manner. In order to blow off the water liquid, a high-pressure nozzle 9 is obliquely arranged on the upper part of the high-pressure jet seat 6. Figure 5 As shown, a mounting slope is provided on the side of the high-pressure jet seat 6, and a plurality of high-pressure nozzles 9 are provided. Several high-pressure nozzles 9 are evenly and equidistantly fixed on the upper part of the mounting slope. In order to facilitate the introduction of the high-pressure body, an air supply interface 10 is fixed at the end of the high-pressure jet seat 6. The air supply interface 10 is connected to the high-pressure nozzle 9. The high-pressure jet seat 6 is distributed opposite to each other up and down, and cooperates with the inclined high-pressure nozzle 9. When the sheet is moved and transported, the high-pressure gas can be used to blow away the droplets on the surface of the sheet to avoid droplet aggregation. The hot air drying at the rear can effectively remove the water attached to the upper part of the sheet. After drying, there is no water mark remaining on the surface of the sheet, which greatly improves the drying effect and quality of the sheet.

[0028] In order to prevent the water from splashing onto the upper part of the cleaned sheet, a water baffle 11 is provided on the side of the high pressure jet seat 6. The number of the water baffles 11 is two. Figure 4As shown, two water baffles 11 are fixed to the sides of two high-pressure jet seats 6 in an inclined manner, so as to prevent splashed water from adhering to the upper part of the cleaned sheet plate for a second time when the water is blown off.

[0029] Working principle or structural principle, when working, the sheet is transported into the drying box seat 1 through the sheet conveyor belt 3 on the feeding side of the drying box seat 1. After entering, the end of the sheet contacts the feeding roller 4 and enters between the two supporting rollers 5 under the drive of the feeding roller 4. When entering, the high-pressure air is blown to the upper and lower sides of the sheet respectively through the inclined high-pressure nozzle 9. The droplets on the surface of the sheet can be blown away by the high-pressure gas to avoid droplet aggregation. After that, the sheet continues to move under the drive of the feeding roller 4. When entering the drying area of ​​the hot air box seat 2, the hot air is evenly blown to the upper and lower sides of the sheet from the blowing sides of the hot air box seats 2 on both sides to complete the drying operation of the sheet. After that, the sheet is transported out of the drying box seat 1 through the feeding roller 4 on the other side, and is moved and transported through the sheet conveyor belt 3 on the discharging side to enter the next level of processing equipment to complete the drying processing of the sheet.

[0030] In summary, the drying device adopts a suspended support structure, utilizes the feeding roller 4 arranged in the drying box seat 1 to convey and drive the sheet, and uses the oppositely distributed support rollers 5 to convey and support the sheet, so that the sheet is kept in a suspended conveying state in the drying box seat 1. During the drying operation, the hot air can be blown to the upper and lower sides of the sheet in an all-round way, which can effectively improve the drying effect of the sheet, and a high-pressure jet seat 6 is arranged on the internal feeding side of the drying box seat 1. The high-pressure jet seat 6 is oppositely distributed up and down, and cooperates with the inclined high-pressure nozzle 9. When the sheet is moved and conveyed, the high-pressure gas can be used to blow away the droplets on the surface of the sheet to avoid droplet aggregation. The hot air drying at the rear can effectively remove the water attached to the upper part of the sheet. After drying, there is no water mark remaining on the surface of the sheet, which greatly improves the drying effect and quality of the sheet.

[0031] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

Claims

1. A sheet drying device for a sheet extrusion production line, comprising a drying box seat (1), characterized in that: The drying box seat (1) is provided with a drying mechanism inside, and the drying mechanism comprises a hot air box seat (2), a sheet conveyor belt (3), a feed roller column (4), a support roller column (5) and a high-pressure jet seat (6). The number of the hot air box seats (2) is two, and the two hot air box seats (2) are respectively installed on the upper and lower sides of the drying box seat (1); The sheet conveyor belt (3) is arranged on the side of the drying box seat (1), the feeding roller column (4) and the supporting roller column (5) are rotatably installed inside the drying box seat (1) to realize the suspended support of the sheet material, and the high-pressure jet seat (6) is arranged on the feeding side of the drying box seat (1), and a high-pressure nozzle (9) is obliquely arranged on the upper part of the high-pressure jet seat (6).

2. The sheet drying device for a sheet extrusion production line according to claim 1, characterized in that: The number of the sheet material conveyor belts (3) is two, and the two sheet material conveyor belts (3) are respectively installed on the inlet and outlet sides of the drying box seat (1).

3. The sheet drying device for a sheet extrusion production line according to claim 2, characterized in that: A plurality of the feed rollers (4) are provided, and a plurality of the feed rollers (4) are equidistantly and evenly rotated and installed inside the drying box seat (1).

4. The sheet drying device for a sheet extrusion production line according to claim 3, characterized in that: The support rollers (5) are rotatably mounted inside the drying box seat (1), the support rollers (5) are located between two adjacent feed rollers (4), and the support rollers (5) are arranged in a longitudinally opposed distribution.

5. The sheet drying device for a sheet extrusion production line according to claim 1, characterized in that: The two hot air box seats (2) are respectively mounted on the upper and lower sides of the middle of the drying box seat (1); a drying heater (7) is arranged inside the hot air box seat (2); and a blowing interface (8) is arranged in the middle of the hot air box seat (2).

6. The sheet drying device for a sheet extrusion production line according to claim 1, characterized in that: The number of the high-pressure jet seats (6) is two, and the two high-pressure jet seats (6) are arranged in an opposed manner. The side of the high-pressure jet seat (6) is provided with a mounting bevel. There are multiple high-pressure nozzles (9), and several high-pressure nozzles (9) are evenly fixed on the upper part of the mounting bevel in an equidistant manner. An air supply interface (10) is fixed at the end of the high-pressure jet seat (6), and the air supply interface (10) is connected to the high-pressure nozzle (9).

7. The sheet drying device for a sheet extrusion production line according to claim 6, characterized in that: A water baffle (11) is provided on the side of the high-pressure jet seat (6), and the number of the water baffles (11) is two. The two water baffles (11) are respectively fixed to the sides of the two high-pressure jet seats (6).

Images