CN221268838U

CN221268838U - PVC/PVDC/PE is drying device for coating

Info

Publication number: CN221268838U
Application number: CN202323200958.9U
Authority: CN
Inventors: 李志新; 周泳; 刘虎俊; 殷德林; 李靖; 袁磊; 杨安顺
Original assignee: Jiangsu Fuxin Huakang Packaging Material Co ltd
Current assignee: Jiangsu Fuxin Huakang Packaging Material Co ltd
Priority date: 2023-11-27
Filing date: 2023-11-27
Publication date: 2024-07-05
Anticipated expiration: 2033-11-27

Abstract

The utility model relates to the technical field of composite hard sheet production and discloses a drying device for PVC/PVDC/PE coating, which comprises a drying box, wherein a distribution net is arranged in the drying box, the distribution net is arranged along an inclined direction, the drying box is divided into a hot air cavity and a drying cavity by the distribution net, the hot air cavity is arranged below, a hot air mechanism is connected to the hot air cavity, a conveying roller set and a plurality of infrared lamp tubes are arranged in the drying cavity, the feeding direction of the conveying roller set is parallel to the distribution net, the distance from the infrared lamp tubes to a preset material is larger than the distance from the hot air mechanism to the preset material, and a dehumidifying mechanism is connected to the drying cavity.

Description

PVC/PVDC/PE is drying device for coating

Technical Field

The utility model relates to the technical field of composite hard sheet production, in particular to a drying device for PVC/PVDC/PE coating.

Background

The PVC/PVDC/PE composite hard sheet is a common type of medical packaging composite hard sheet, and the PVC hard sheet is formed into a multi-layer composite structure by coating PVDC emulsion on a PVC base material and bonding a PE film, so that the performance of the hard sheet for blocking water vapor and oxygen is improved, and the PVC/PVDC/PE composite hard sheet is more in accordance with the packaging and storage requirements of various medical supplies. Before winding after the composite process is completed, the materials are required to be dried so that the composite layer is solidified and firmly adhered with the base material, and layering is prevented.

The Chinese patent application number 202221493883.0 discloses a drying device for coating equipment, a plurality of infrared lamp tubes and hot air pipes are arranged in a drying box along the upper and lower sides of a material at intervals, the upper and lower sides of the material are dried simultaneously by heating and blowing hot air, the drying and curing of a coating are accelerated, but the coating is directly heated, the surface of the coating is easily embrittled or even cracked when being dried first, meanwhile, the moisture of an inner core after the surface is cured is not easily discharged, the product quality is easily affected, and the surface of the coating is possibly wrinkled when the surface is directly blown.

Disclosure of utility model

Aiming at the defects existing in the prior art, the utility model aims to provide a drying device for PVC/PVDC/PE coating, which has better drying effect and can ensure the surface quality.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a PVC/PVDC/PE is drying device for coating, includes the drying cabinet, be provided with the distribution net in the drying cabinet, the distribution net sets up along the incline direction, the distribution net separates the drying cabinet into hot-blast chamber and stoving chamber, hot-blast chamber sets up in the below, be connected with hot-blast mechanism on the hot-blast chamber, be provided with transport roller group and a plurality of infrared lamp tube in the stoving chamber, the pay-off direction and the distribution net parallel arrangement of transport roller group, the distance of infrared lamp tube to predetermineeing the material is greater than hot-blast mechanism to predetermineeing the distance of material, be connected with the dehumidification mechanism on the stoving chamber.

The utility model is further provided with: the conveying roller set comprises a first supporting roller and a second supporting roller, a feeding hole and a discharging hole are respectively formed in two sides of the drying box, the first supporting roller is arranged on one side of the feeding hole outside the drying box, the second supporting roller is arranged on one side of the feeding hole in the drying box, the first supporting roller, the feeding hole and the second supporting roller are arranged on the same horizontal plane, a third supporting roller is arranged in the middle of the drying box, a steering roller set is arranged on one side of the discharging hole in the drying box, and the steering roller set conveys materials through an upper roller body and a lower roller body.

The utility model is further provided with: the dehumidifying mechanism comprises a second fan, an air inlet end of the second fan is communicated with one side, far away from the hot air mechanism, of the drying cavity, a condensing box is arranged at an air outlet end of the second fan, a compressor and a condensing pipe are arranged in the condensing box, the condensing pipe is arranged along the wall of the condensing box, and an air outlet net is correspondingly arranged on the wall of the condensing box.

The utility model is further provided with: the bottom of the condensing box is provided with a filter screen, a liquid collecting cavity is arranged below the condensing box, the filter screen separates the condensing box from the liquid collecting cavity, and water absorbing materials are filled in the liquid collecting cavity.

The utility model is further provided with: the hot air mechanism comprises a first fan, the air outlet end of the first fan is communicated with a plurality of air inlet pipes, the air inlet pipes are communicated with a hot air cavity, an electric heating pipe network is installed in the hot air cavity, and the electric heating pipe network is attached to the opening of the air inlet pipe.

The utility model is further provided with: and a plurality of box doors are arranged on the drying box, and the box doors are arranged at intervals of the conveying roller groups.

The utility model has the advantages that:

1. The hot air mechanism is arranged below the material, hot air is dispersed into small air flow through the distribution network, then upwards enters the drying cavity and acts on the lower surface of the material, the material is dried by heating the lower surface, so that moisture in the coating is gradually evaporated, uneven internal drying is prevented, meanwhile, a plurality of infrared lamp tubes are arranged above the drying cavity, are far away from the material and only keep the temperature in the drying cavity, embrittlement of the coating caused by overhigh surface temperature is prevented, the drying speed is accelerated, and the quality of the coating is ensured;

2. The hot air mechanism is arranged below the materials, does not directly blow the coating, prevents air flow from blowing the coating, ensures the flatness of the surface of the coating, simultaneously sets the conveying roller set along the inclined direction, sets the steering roller set at the discharge port, and has a certain tensioning effect on the materials by matching with the supporting roller two pairs when the materials are friction-propelled, thereby preventing the materials from being blown by hot air and ensuring the quality of the coating;

3. The drying cavity is connected with a dehumidifying mechanism, the dehumidifying mechanism dehumidifies the gas exhausted from the drying box and collects and stores water vapor in the gas, so that the exhausted gas is prevented from improving the air humidity around the drying box to influence the drying effect.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a rear side view of the present utility model;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

In the figure: 1. a drying box; 11. a door; 12. a feed inlet; 13. a discharge port; 14. a hot air chamber; 15. a drying chamber; 2. a first supporting roller; 3. a hot air mechanism; 31. a first fan; 32. an air inlet pipe; 33. an electric heating pipe network; 4. a distribution network; 5. an infrared lamp tube; 6. a dehumidifying mechanism; 61. a second fan; 62. a condensing box; 621. a compressor; 622. a condensing tube; 623. an air outlet net; 624. a filter screen; 63. a liquid collection cavity; 7. a second supporting roller; 8. a third supporting roller; 9. and a steering roller group.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, the terms "upper" and "lower" are used generally with respect to the directions shown in the drawings, or with respect to the vertical, vertical or gravitational directions; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present utility model.

Referring to fig. 1-4, the present utility model provides the following technical solutions:

The PVC/PVDC/PE coating drying device comprises a drying box 1, wherein a distribution net 4 is arranged in the drying box 1, the distribution net 4 is arranged in an inclined direction, the drying box 1 is divided into a hot air cavity 14 and a drying cavity 15 by the distribution net 4, the hot air cavity 14 is arranged below, a hot air mechanism 3 is connected to the hot air cavity 14, a conveying roller set and a plurality of infrared lamp tubes 5 are arranged in the drying cavity 15, the feeding direction of the conveying roller set is parallel to the distribution net 4, the distance from the infrared lamp tubes 5 to preset materials is larger than the distance from the hot air mechanism 3 to the preset materials, and a dehumidifying mechanism 6 is connected to the drying cavity 15;

the material is driven by the conveying roller group to move along the inclined direction, and has a certain tensioning effect on the material when the moving direction of the material is changed, so that the material is prevented from vibrating under the blowing of hot air, the movement of a coating is avoided, and the quality of the material is ensured;

the hot air mechanism 3 inputs hot air into the hot air cavity 14, the hot air is dispersed into small air flow through the distribution net 4 and then is uniformly sprayed on the lower surface of the material, so that the material is sequentially heated from the base layer to the upper coating, moisture is sequentially evaporated from bottom to top, embrittlement and dry cracking caused by too fast temperature rise of the surface of the coating are avoided, the drying effect is improved, the air flow does not directly act on the surface of the coating, air flow is prevented from blowing the coating, and the surface quality of the coating is ensured;

The infrared lamp tube 5 is far away from the material, and the temperature of the infrared lamp tube is controlled to be lower than that of the hot air mechanism 3, so that the infrared lamp tube has heat preservation and drying effects on the drying cavity 15, the drying speed of the device is improved, and embrittlement of the surface of the coating layer when the temperature of the surface of the coating layer rises too fast is avoided;

the dehumidifying mechanism 6 dehumidifies the gas exhausted from the drying box 1, prevents the vapor of the exhausted gas from improving the air humidity around the drying box 1, influences the action of the hot air mechanism 3 and improves the drying effect of the device.

The conveying roller set comprises a first supporting roller 2 and a second supporting roller 7, wherein a feed inlet 12 and a discharge outlet 13 are respectively formed in the left side and the right side of the drying box 1, the first supporting roller 2 is arranged on the outer side of the left side wall of the drying box 1, the second supporting roller 7 is arranged on the inner side of the left side wall of the drying box 1, the supporting surfaces of the first supporting roller 2, the feed inlet 12 and the second supporting roller 7 are in the same horizontal plane, and materials to be dried enter the drying box 1 through the first supporting roller 2, the feed inlet 12 and the second supporting roller 7 in sequence along the horizontal direction; a third supporting roller 8 is arranged in the middle of the drying box 1 to assist in supporting materials; the inside of the right side wall of the drying box 1 is provided with a steering roller set 9, the steering roller set 9 is arranged below the second supporting roller 7, the steering roller set 9 pulls materials through the upper roller body and the lower roller body when conveying the materials, the materials move in the drying box 1 along the inclined direction, the materials moving along the inclined direction are converted into horizontal directions to move, and finally, the materials are output to the next procedure through a discharge hole 13, and the conveying roller set has a certain tensioning effect on the materials through steering.

The dehumidifying mechanism 6 comprises a second fan 61, the air inlet end of the second fan 61 is communicated with one side, far away from the hot air mechanism 3, of the drying cavity 15, convection inside the drying box 1 is enhanced, hot air inside the drying box 1 can circulate fully, and the drying effect of hot air is improved; the air outlet end of the second fan 61 is provided with a condensing box 62, a compressor 621 and a condensing pipe 622 are arranged in the condensing box 62, the condensing pipe 622 is arranged along the box wall of the condensing box 62, an air outlet net 623 is correspondingly arranged on the box wall of the condensing box 62, when hot air containing moisture in the drying box 1 extracted by the second fan 61 passes through the condensing box 62, the moisture is liquefied on the condensing pipe 622, and the dehumidified air is discharged by the air outlet net 623, so that the air dryness of the surrounding environment of the drying box 1 is ensured, and the drying effect is improved;

The bottom of the condensing box 62 is provided with the filter screen 624, the liquid collecting cavity 63 is arranged below the condensing box 62, the filter screen 624 separates the condensing box 62 from the liquid collecting cavity 63, liquefied water vapor in the condensing box 62 is accumulated downwards and enters the liquid collecting cavity 63 through the filter screen 624 to be collected, and the dehumidification effect of the dehumidifying mechanism 6 is improved when the liquid collecting cavity 63 is filled with water absorbing materials.

The hot air mechanism 3 comprises a first fan 31, the air outlet end of the first fan 31 is communicated with a plurality of air inlet pipes 32, the air inlet pipes 32 are communicated with the hot air cavity 14, an electric heating pipe network 33 is installed in the hot air cavity 14, the electric heating pipe network 33 is attached to the opening of the air inlet pipe 32, the first fan 31 inputs dry air extracted from the external environment into the hot air cavity 14 through the air inlet pipe 32, and the air is heated when passing through the electric heating pipe network 33, so that the input of hot air is realized.

Install a plurality of chamber doors 11 on the drying cabinet 1, chamber door 11 sets up in the interval department of conveying roller group, is convenient for material loading and the maintenance of device when opening chamber door 11.

Specifically, the hot air mechanism 3 is arranged below the material, hot air is dispersed into small air flow through the distribution net 4, then enters the drying cavity 15 upwards and acts on the lower surface of the material, the material is dried by heating the lower surface, so that moisture in the coating is gradually evaporated, uneven internal drying is prevented, meanwhile, a plurality of infrared lamp tubes 5 are arranged above the drying cavity 15, the infrared lamp tubes 5 are far away from the material, only the drying cavity 15 is insulated, embrittlement of the coating caused by overhigh surface temperature is prevented, the drying speed is accelerated, and the quality of the coating is ensured;

The hot air mechanism 3 is arranged below the material, does not directly blow the coating, prevents air flow from blowing the coating, ensures the flatness of the surface of the coating, simultaneously sets the conveying roller set along the inclined direction, sets the steering roller set at the discharge hole 13, and has a certain tensioning effect on the material by matching with the supporting roller II 7 when carrying out friction propulsion on the material, thereby preventing the material from being blown by hot air and ensuring the quality of the coating;

The drying cavity 15 is connected with a dehumidifying mechanism 6, the dehumidifying mechanism 6 dehumidifies the gas exhausted from the drying box 1 and collects and stores water vapor in the gas, so that the drying effect is prevented from being influenced by the fact that the exhausted gas improves the humidity of the air around the drying box 1.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar orientations and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

Drying device for PVC/PVDC/PE coating, including drying cabinet (1), its characterized in that: be provided with distribution network (4) in drying cabinet (1), distribution network (4) set up along the incline direction, distribution network (4) separate drying cabinet (1) into hot-blast chamber (14) and stoving chamber (15), hot-blast chamber (14) set up in the below, be connected with hot-blast mechanism (3) on hot-blast chamber (14), be provided with transport roller group and a plurality of infrared lamp tube (5) in stoving chamber (15), the pay-off direction and the distribution network (4) parallel arrangement of transport roller group, the distance of infrared lamp tube (5) to preset material is greater than hot-blast mechanism (3) to preset material's distance, be connected with on stoving chamber (15) dehumidifying mechanism (6).
2. The drying apparatus for PVC/PVDC/PE coating according to claim 1, wherein: the conveying roller set comprises a first supporting roller (2) and a second supporting roller (7), a feeding hole (12) and a discharging hole (13) are respectively formed in two sides of the drying box (1), the first supporting roller (2) is arranged on one side of the feeding hole (12) outside the drying box (1), the second supporting roller (7) is arranged on one side of the feeding hole (12) in the drying box (1), the first supporting roller (2), the feeding hole (12) and the second supporting roller (7) are arranged on the same horizontal plane on the supporting surface of materials, a third supporting roller (8) is arranged in the middle of the drying box (1), a steering roller set (9) is arranged on one side of the discharging hole (13) in the drying box (1), and the steering roller set (9) is used for conveying the materials through an upper roller body and a lower roller body.
3. The drying apparatus for PVC/PVDC/PE coating according to claim 1, wherein: the dehumidifying mechanism (6) comprises a second fan (61), an air inlet end of the second fan (61) is communicated with one side, far away from the hot air mechanism (3), of the drying cavity (15), a condensing box (62) is arranged at an air outlet end of the second fan (61), a compressor (621) and a condensing pipe (622) are arranged in the condensing box (62), the condensing pipe (622) is arranged along the wall of the condensing box (62), and an air outlet net (623) is correspondingly arranged on the wall of the condensing box (62).
4. A drying apparatus for PVC/PVDC/PE coating according to claim 3, wherein: the bottom of the condensing box (62) is provided with a filter screen (624), a liquid collecting cavity (63) is arranged below the condensing box (62), the filter screen (624) separates the condensing box (62) from the liquid collecting cavity (63), and the liquid collecting cavity (63) is filled with water absorbing materials.
5. The drying apparatus for PVC/PVDC/PE coating according to claim 1, wherein: the hot air mechanism (3) comprises a first fan (31), the air outlet end of the first fan (31) is communicated with a plurality of air inlet pipes (32), the air inlet pipes (32) are all communicated with the hot air cavity (14), an electric heating pipe network (33) is arranged in the hot air cavity (14), and the electric heating pipe network (33) is attached to the opening of the air inlet pipes (32).
6. The drying apparatus for PVC/PVDC/PE coating according to claim 1, wherein: a plurality of box doors (11) are arranged on the drying box (1), and the box doors (11) are arranged at intervals of the conveying roller groups.