Drying device for label printing

Abstract

The utility model relates to the technical field of drying devices, in particular to a drying device for label printing, which comprises a drying box, a centrifugal fan and a label strip, the centrifugal fan is fixedly arranged on one side of the drying box, and an air inlet and an air outlet of the centrifugal fan are respectively provided with an exhaust pipe and an air return pipe. The centrifugal fan is communicated with and fixed to the air inlet and outlet position of the drying box through the exhaust pipe and the air return pipe, the label strip is arranged in the drying box in a penetrating mode, the condensation box and the heating box are sequentially installed at the air outlet position of the drying box, a vortex-shaped structure is adopted to form a drying and cooling path of the label strip, and under the condition of the same size, the label strip can be dried and cooled. Compared with traditional belt type drying equipment, a longer drying and cooling path can be provided, the situation that the equipment is too large and occupies a large site is avoided, the vortex water cooling plate is arranged at the front end of the winding roller, a label strip is tightly attached to the surface of the vortex water cooling plate during winding, the dried label strip can be cooled, and the situation that heat cannot be dissipated after winding is conducted is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of drying devices, in particular to a drying device for label printing. Background Art

[0002] The drying device for label printing is a device specially designed for the rapid curing and drying of ink or coating after label printing. It usually uses infrared rays, hot air or UV light to accelerate the ink drying process, ensure that the label surface is immediately dry, and avoid adhesion and contamination. The device structure includes a heating source, a conveyor belt and a control system. It can continuously and efficiently process large quantities of labels, improve production efficiency and product quality, and is widely used in the food, medicine, daily chemical and other industries.

[0003] The drying device can meet the needs of rapid packaging and application after label printing, but it still has certain problems: 1) When drying labels, the maximum temperature value they can withstand is limited, so a longer drying stroke is required to ensure the drying quality, which will cause the equipment to be larger in size and occupy a larger area; 2) After the labels are dried, the heat cannot be dissipated quickly, and the heat is concentrated after winding, which can easily cause label quality problems; 3) For drying equipment that uses hot air drying, its heat utilization rate is low; therefore, in view of the above situation, there is an urgent need to develop a drying device for label printing to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The purpose of the present invention is to provide a drying device for label printing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a drying device for label printing, comprising a drying box, a centrifugal fan, and a label strip, wherein the centrifugal fan is fixedly mounted on one side of the drying box, an exhaust duct and a return duct are respectively installed at the air inlet and outlet of the centrifugal fan, the centrifugal fan is connected to and fixed to the air inlet and outlet of the drying box through the exhaust duct and the return duct, the label strip is passed through the drying box, and a condensing box and a heating box are sequentially installed at the air outlet of the drying box;

[0006] The drying box consists of an outer shell and a vortex guide plate fixed inside the outer shell. A vortex water-cooled plate and a winding roller are fixed in the middle position of the outer shell. A drying channel is formed between adjacent vortex guide plates, and a cooling channel is formed between adjacent vortex water-cooled plates. An insulation plate is installed between the drying channel and the cooling channel. An opening for taking out the finished label roll is opened in the middle position of the side wall of the outer shell, and a side cover is hinged at the opening position.

[0007] Preferably, the vortex guide plate and the vortex water-cooling plate are connected at the end to form a complete vortex structure. Specifically, the vortex structure can extend the travel path of the label strip when it is rolled up, thereby providing a drying channel of sufficient length to fully ensure the label drying effect.

[0008] Preferably, a water inlet and outlet interface is fixed on one side of the vortex water cooling plate. Specifically, the vortex water cooling plate can cool the dried label strips to avoid heat accumulation after winding and affecting the label quality.

[0009] Preferably, the air outlet end of the exhaust duct is passed through the outer wall of the outer shell and is connected to and fixed with the drying channel adjacent to the insulation plate. Specifically, the centrifugal fan is arranged in conjunction with the exhaust duct to introduce the heated hot air into the drying channel formed by the vortex guide plate, and promote the hot air to flow along the vortex-shaped drying channel.

[0010] Preferably, the air inlet of the condensing box is connected to the air outlet of the drying channel, and the air outlet of the condensing box is connected to the air inlet of the heating box. A plurality of condensing tubes are provided inside the condensing box, a water collecting tank is installed at the bottom of the condensing tubes, and a drain pipe connected to the water collecting tank is provided on the outer wall of the condensing box. Specifically, the air with increased moisture after passing through the drying channel can be condensed by the provided condensing tubes, and the condensed water is discharged through the drain pipe, thereby reducing the water content in the air entering the subsequent circulation process.

[0011] Preferably, the air inlet end of the return air duct is connected to and fixed with the air outlet of the heating box, and a heating wire is installed inside the heating box. Specifically, the heating wire is used to heat the air to dry the labels.

[0012] Compared with the prior art, the present invention provides a drying device for label printing, which has the following beneficial effects:

[0013] 1. It uses a vortex structure to form the drying and cooling path of the label strips. Compared with traditional belt drying equipment of the same size, it can provide a longer drying and cooling path, avoiding the equipment being too large and occupying a large area;

[0014] 2. A vortex water-cooling plate is installed at the front end of the winding roller. When winding, the label strip is close to the surface of the vortex water-cooling plate, which can cool the dried label strip to prevent heat from being unable to dissipate after winding;

[0015] 3. The vortex-shaped drying channel can circulate air during the drying process. The cross-section of the air flow path is small, and heat can be conducted to every position, improving heat utilization. At the same time, its flow path is smoother and the air flow resistance is smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0017] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the vortex guide plate of the utility model;

[0019] Figure 3 This is a side longitudinal sectional view of the drying box of the present invention.

[0020] In the figure: 10, drying box; 101, outer shell; 102, vortex guide plate; 103, vortex water cooling plate; 1031, water inlet and outlet interface; 104, winding roller; 105, insulation board; 106, side cover; 20, centrifugal fan; 201, exhaust duct; 202, return air duct; 30, label strip; 40, condensation box; 401, condensation pipe; 402, water collecting tank; 403, drain pipe; 50, heating box; 501, heating wire. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] Example:

[0024] See also Figure 1-Figure 3The utility model provides a technical solution: a drying device for label printing, comprising a drying box 10, a centrifugal fan 20 and a label strip 30. The centrifugal fan 20 is fixedly mounted on one side of the drying box 10. An exhaust duct 201 and a return air duct 202 are respectively installed at the air inlet and outlet of the centrifugal fan 20. The centrifugal fan 20 is connected to and fixed to the air inlet and outlet of the drying box 10 through the exhaust duct 201 and the return air duct 202. The label strip 30 is passed through the drying box 10. A condensation box 40 and a heating box 50 are sequentially installed at the air outlet of the drying box 10.

[0025] The drying box 10 consists of an outer shell 101 and a vortex guide plate 102 fixed in the outer shell 101. A vortex water-cooled plate 103 and a winding roller 104 are fixed in the middle position of the outer shell 101. A drying channel is formed between adjacent vortex guide plates 102, and a cooling channel is formed between adjacent vortex water-cooled plates 103. An insulation plate 105 is installed between the drying channel and the cooling channel. An opening for taking out the finished label roll is opened in the middle position of the side wall of the outer shell 101, and a side cover 106 is hinged at the opening position.

[0026] Preferably, the vortex guide plate 102 is connected to the vortex water-cooled plate 103 at the ends to form a complete vortex structure. Specifically, the vortex structure can extend the travel path of the label strip 30 when it is rolled up, thereby providing a drying channel of sufficient length to fully ensure the label drying effect.

[0027] Preferably, a water inlet and outlet interface 1031 is fixed on one side of the vortex water cooling plate 103. Specifically, the vortex water cooling plate 103 can cool the dried label strip 30 to avoid heat accumulation after winding and affecting the label quality.

[0028] Preferably, the air outlet end of the exhaust duct 201 is passed through the outer wall of the outer shell 101 and is connected to and fixed with the drying channel adjacent to the insulation plate 105. Specifically, the centrifugal fan 20 is arranged in conjunction with the exhaust duct 201 to introduce the heated hot air into the drying channel formed by the vortex guide plate 102, and promote the hot air to flow along the vortex-shaped drying channel.

[0029] Preferably, the air inlet of the condensing box 40 is connected to the air outlet of the drying channel, and the air outlet of the condensing box 40 is connected to the air inlet of the heating box 50. A plurality of condensing tubes 401 are provided inside the condensing box 40, and a water collecting tank 402 is installed at the bottom of the condensing tube 401. A drain pipe 403 connected to the water collecting tank 402 is provided on the outer wall of the condensing box 40. Specifically, the air with increased moisture after passing through the drying channel can be condensed by the provided condensing tube 401, and the condensed water is discharged through the drain pipe 403, thereby reducing the water content in the air entering the subsequent circulation process.

[0030] Preferably, the air inlet end of the return air duct 202 is connected to and fixed with the air outlet of the heating box 50 , and a heating wire 501 is installed inside the heating box 50 . Specifically, the heating wire 501 is used to heat the air for label drying.

[0031] Working principle: One end of the label strip 30 passes through the drying box 10 and moves along the drying channel formed by the vortex guide plate 101 and the cooling channel formed by the vortex water-cooling plate 103, and is finally wound on the winding roller 104. After printing by the label printing equipment, the heating wire 501 in the heating box 50 starts to work, and the centrifugal fan 20 introduces the air into the drying channel formed by the vortex guide plate 102 in the drying box 10 through the exhaust pipe 201. The hot air flows along the vortex-shaped drying channel. In this process, the label strip 30 wrapped around the vortex guide plate 102 and continuously wound is dried. In this process, the moisture in the ink evaporates, the temperature of the hot air drops and the moisture increases, and finally enters the condensation box 40 for condensation. The condensed water drips from the condensation pipe 401 to the water collection tank 402, and is finally discharged through the drain pipe 403. The condensed air enters the heating box 50 and is heated.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A drying device for label printing, characterized in that: The invention comprises a drying box (10), a centrifugal fan (20) and a label strip (30), wherein the centrifugal fan (20) is fixedly arranged on one side of the drying box (10), an exhaust pipe (201) and a return air pipe (202) are respectively installed at the air inlet and outlet of the centrifugal fan (20), the centrifugal fan (20) is respectively connected to and fixed with the air inlet and outlet of the drying box (10) through the exhaust pipe (201) and the return air pipe (202), the label strip (30) is passed through the drying box (10), and a condensing box (40) and a heating box (50) are sequentially installed at the air outlet of the drying box (10); The drying box (10) is composed of an outer shell (101) and a vortex guide plate (102) fixed in the outer shell (101); a vortex water-cooling plate (103) and a winding roller (104) are fixed in the middle position of the outer shell (101); a drying channel is formed between adjacent vortex guide plates (102); a cooling channel is formed between adjacent vortex water-cooling plates (103); an insulation plate (105) is installed between the drying channel and the cooling channel; an opening for taking out a finished label roll is opened in the middle position of the side wall of the outer shell (101); a side cover (106) is hinged at the opening position.

2. A drying device for label printing according to claim 1, characterized in that: The vortex guide plate (102) and the vortex water-cooling plate (103) are connected at the ends to form a complete vortex structure.

3. The drying device for label printing according to claim 1, characterized in that: One side of the vortex water cooling plate (103) is fixedly provided with a water inlet and outlet interface (1031).

4. The drying device for label printing according to claim 1, characterized in that: The air outlet end of the exhaust pipe (201) is provided on the outer wall of the housing (101) and is connected to and fixed to the drying channel adjacent to the insulation plate (105).

5. The drying device for label printing according to claim 1, characterized in that: The air inlet of the condensing box (40) is connected to the air outlet of the drying channel, and the air outlet of the condensing box (40) is connected to the air inlet of the heating box (50). A plurality of condensing pipes (401) are provided inside the condensing box (40), a water collecting tank (402) is installed at the bottom of the condensing pipe (401), and a drainage pipe (403) connected to the water collecting tank (402) is provided on the outer wall of the condensing box (40).

6. The drying device for label printing according to claim 1, characterized in that: The air inlet end of the return air duct (202) is connected to and fixed to the air outlet of the heating box (50), and a heating wire (501) is installed inside the heating box (50).

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