JP2021062921A - Hot air machine - Google Patents

Abstract

To protect a package from being damaged due to contact (conduction) by applying heat to the package, as heat conduction through convection.SOLUTION: One embodiment of the present invention relates to a hot air machine that transmits heat to a package to prevent the package from being deformed. According to one embodiment of the present invention, provided are a heating box for increasing an air temperature via heat-exchange, a heat-exchange box for heat-exchanging air and the package by in-flow of air at temperature increased by the heating box, and a plurality of rollers that guides the package so as to pass through an interior of the heat-exchange box. In the heat-exchange box, located is a suction part for making a hot air provision part providing air heat-exchanged from the heating box and the air provided from the hot air provision part reflow into the heating box. As to the plurality of rollers, provided is the hot air machine for forming a transfer path of the package in such a manner that the package passes through the interior of the heat-exchange box.SELECTED DRAWING: Figure 1

Description

The present invention relates to a hot air blower that transfers heat to the packaging material in order to prevent deformation of the packaging material.

Generally, in a food manufacturing line, film-shaped vinyl is often used as a packaging material for packaging food additives and the like. These packaging materials are very useful for packaging food additives in a sealed state. However, when the film is used in the manufacturing process of the packaging material, the seam portion to be cut is bent, which can induce a malfunction due to erroneous recognition of the sensor during transfer. If the production line is stopped due to a malfunction, the production rate may be lowered and troublesome cleaning may occur. Therefore, in the conventional production line, in order to solve such a problem, an operator holds a dryer and provides hot air to prevent bending of the film. Also, in recent years, automated devices that do this may be applied. In the case of automated equipment, when the film contact of the heating machine causes the transfer temperature to exceed expectations, the internal pressure of the sealed packaging material increases and bursts, or fusion with the contacted member, etc. Problem has occurred. Therefore, in order to solve such a problem, there is a demand for a device capable of stretching a portion such as a seam of a packaging material without contact.

Korean Registered Patent Gazette No. 10-13989773 (2014.05.19)

One embodiment of the present invention is for solving the problem of the conventional device for preventing the deformation of the packaging material described above, and the object of one embodiment of the present invention to be solved is through convection. As heat transfer, heat is applied to the packaging material to prevent damage to the packaging material due to contact (convection).

Another object to be solved by one embodiment of the present invention is to create an environment in an already determined temperature range through the circulation of hot air supply and discharge.

One embodiment of the present invention relates to a hot air blower that transfers heat to the packaging material in order to prevent deformation of the packaging material. According to one embodiment of the present invention, a heating box that increases the temperature of air by heat exchange, a heat exchange box in which air having an increased temperature by the heating box flows in and heat exchange between the air and the packaging material, The heat exchange box includes a plurality of rollers that guide the packaging material through the heat exchange box, and the heat exchange box is provided by a hot air supply unit and a hot air supply unit that provide heat exchanged air from the heating box. A suction section is located to re-inflow the air into the heating box, and the plurality of rollers are provided with a hot air blower that forms a transfer path for the packaging material so that the packaging material passes through the heat exchange box.

Then, the hot air providing portion inside the heat exchange box may be located below the suction portion.

Further, the air provided from the hot air providing unit can be heat exchanged with the packaging material by a heat exchange method through convection in the heat exchange box.

Further, the plurality of rollers include an inflow roller that guides the packaging material to the inside of the heat exchange box, a transit roller that transfers the packaging material guided by the inflow roller from the bottom to the top, and a packaging material guided by the transit roller. It may include a discharge roller that guides the outside of the heat exchange box.

Further, the plurality of rollers may further include a guide roller arranged at one or more positions between the inflow roller and the via roller and between the transit roller and the discharge roller.

Further, the temperature of the air provided from the hot air providing unit can be determined within the range of room temperature or higher and 100 degrees or lower.

Further, the temperature sensor unit located on the suction unit side is further included, and the degree of heat exchange performed in the heat exchange box can be determined according to the temperature sensed by the temperature sensor unit.

It may further include a control unit that controls the heat exchange performed in the heat exchange box and the transfer rate of the packaging material by the plurality of rollers.

In addition, the temperature controlled by the control unit can be input, and may further include a display unit that displays the transfer speed of the plurality of rollers and the temperature of the air in the heat exchange box.

According to one embodiment of the present invention, a hot air providing section for discharging heated air and a suction section for sucking in heat exchanged air for reheating are provided, and a temperature already determined is maintained in a heat exchange box. Can provide a hot air blower.

According to one embodiment of the present invention, it is possible to provide a hot air blower in which a hot air providing part and an air discharging part are arranged in a lower stage and an upper stage, respectively, to create an environment in an already determined temperature range even during smooth air circulation. ..

FIG. 1 is a perspective view showing that the heat exchange box of the hot air blower according to the embodiment of the present invention has been opened.

FIG. 2 is a front view showing that the heat exchange box of the hot air blower according to the embodiment of the present invention has been opened.

FIG. 3 is a diagram showing a heat exchange box according to an embodiment of the present invention.

FIG. 4a is a diagram showing a direction in which heat is supplied from the hot air providing unit according to an embodiment of the present invention. FIG. 4b is a diagram showing the direction in which the air warmed by the heat provided from the hot air providing unit according to the embodiment of the present invention moves.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is merely an example, and the present invention is not limited thereto.

In explaining the present invention, if it is determined that a specific description of the known technique according to the present invention can unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Then, the term described later is a term defined in consideration of the function in the present invention, and this can be changed depending on the intention or custom of the user, the operator, or the like. Therefore, that definition should be based on the general content of this specification.

The technical idea of the present invention is determined by the scope of claims, and the following embodiment is for efficiently explaining the technical idea of the present invention to a person having ordinary knowledge in the technical field to which the present invention belongs. It's just a means.

FIG. 1 is a perspective view showing that the heat exchange box 101 of the hot air blower 10 according to the embodiment of the present invention has been opened.

Referring to FIG. 1, the hot air blower 10 may include rollers 5, 111, 112, 113, 114 for transferring the packaging material F and a heat exchange box 101 which is a space where heat is applied to the packaging material F. Further, the hot air blower 10 includes a heating box 4 for increasing the temperature of the air provided to the heat exchange box 101, a switchboard 3 for accommodating the electrical equipment of the hot air blower 10, and rollers 5, 111, 112 for transferring the packaging material F. Supporting the display unit 1 and the configuration capable of displaying the transfer speeds of 113, 114, rollers 5, 111, 112, 113, 114 and the temperature in the heat exchange box 101 and inputting control information, and moving wheels 2'. A moving base 2 for moving the hot air blower 10 may be further included.

In addition, the hot air blower 10 may further include a control unit (not shown). The control unit can control the temperature inside the heat exchange box 101 and control the transfer speed of the rollers 5, 111, 112, 113, 114. The temperature control of the control unit can be satisfied by inputting an already (preliminarily) determined temperature to the display unit 1 and heating or not heating to reach the input temperature. This can be set by the user, is above room temperature (for example, 25 degrees), and can be determined within the range of 100 degrees or less.

For the control of the control unit described above, the temperature sensing unit 140 may be included as a means for sensing the temperature in the heat exchange box 101. Specifically, the temperature sensing unit 140 may be located in the heat exchange box 101 between the hot air providing unit 120 that provides the hot air H and the suction unit (130 in FIG. 2) that sucks in air. Specifically, it will be described later through FIGS. 2 to 4.

FIG. 2 is a front view showing that the heat exchange box 101 of the hot air blower 10 according to the embodiment of the present invention has been opened.

Referring to FIG. 2, the packaging material F transferred along the rollers 5, 111, 112, 113, 114 may pass through the heat exchange box 101. The hot air blower 10 may be located in one of the processing processes of the packaging material F through which the packaging material F passes in the line. That is, the packaging material F can be transmitted to the hot air blower 10 after passing through another device for pretreatment before being transferred. Therefore, the rollers 5, 111, 112, 113, 114 may guide the packaging material F in order to continuously transfer the pretreated packaging material F.

Here, a large number of the rollers 5, 111, 112, 113, 114 may be included in the hot air blower 10. In the case of this example, the transfer roller 5 for guiding the pretreated packaging material F, the inflow roller 111 for transferring the packaging material F to the inside of the heat exchange box 101, and the route of the packaging material F in the heat exchange box 101. A through roller 112 to be formed and a discharge roller 113 for transferring the packaging material F to the outside of the heat exchange box 101 so as to perform a post-treatment process may be included. Further, one or more guide rollers 114 may be located between the inflow roller 111 and the via roller 112 and between the transit roller 112 and the discharge roller 113. Each of the rollers 5, 111, 112, 113, 114 can adjust the transfer speed or rotate freely to transfer, and the packaging material F is formed on the outer peripheral surface of the rollers 5, 111, 112, 113, 114. It may also have the function of changing the transfer direction by contacting the parts so that they are rolled up.

On the other hand, the air heated by heat exchange with the air in the heating box 4 can be provided to the inside of the heat exchange box 101 via the hot air providing unit 120. The provided air can be mixed in the heat exchange box 101 by forced convection or natural convection. Further, if the packaging material F made of a vinyl material is positioned in the direction in which air is discharged from the hot air providing unit 120, heat may be intensively applied and the packaging material may be thermally shrunk. Therefore, in the case of forced convection, the packaging material F can be prevented from being positioned in the direction of the air provided from the hot air providing unit 120. This can be one of a variety of designs that allow heat exchange between the air and the packaging material F by convection due to temperature differences. When the packaging material F is located in the direction of the air, air having a relatively low temperature (a temperature lower than the temperature at which the packaging material F is fused to the rollers) can be discharged from the hot air providing unit 120.

As described above, when the heat transfer is applied to the packaging material F through the non-contact method between the configurations by convection, the film is transferred to the contact member unlike the case where the heat transfer is carried out by the conduction method through the contact between the configurations. It is possible to prevent fusion, and the internal space of the heat exchange box 101 can create an environment with a uniform temperature.

FIG. 3 is a drawing showing a heat exchange box 101 according to an embodiment of the present invention.

Referring to FIG. 3, the packaging material F may pass through the interior of the heat exchange box 101 during transfer by rollers 5, 111, 112, 113, 114. Inside the heat exchange box 101, bending and the like that may occur at the seams can be removed due to the influence of heat from the hot air H. Here, the seam means a connecting portion between the respective accommodating portions in which the packaging material F accommodates a certain amount of contents. The accommodating portions can be separated from each other by cutting the seams during the post-treatment process via the hot air blower 10.

On the other hand, the heat exchange box 101 may be formed long in the vertical direction. Providing a space formed long in the vertical direction may be a structure that induces natural convection of the hot air H provided from the hot air providing unit 120. Depending on such a structure, the packaging material F that is drawn into and transferred to the inside of the heat exchange box 101 may form a locus that moves downward and is moved upward again by the via roller 112.

At this time, since the hot air providing unit 120 that provides the hot air H to the heat exchange box 101 is located below, the provided hot air H moves upward due to the temperature difference, and in the process of moving, the hot air H and the packaging material F are moved upward. Heat exchange can take place. Therefore, heat can be transferred to the packaging material F which is vertically transferred inside the heat exchange box 101 by such natural convection.

Here, the temperature sensing unit 140 is connected to a control unit (not shown) and can transmit the sensed temperature to the control unit. The control unit can control heating or cooling (non-heating) in the heating box 4 based on the received temperature. Here, the temperature sensing unit 140 may be located between the hot air providing unit 120 and the suction unit 130. That is, it can be located on the path of movement of air heated by natural convection.

FIG. 4a is a drawing showing a direction in which heat is provided from the hot air providing unit 120 according to the embodiment of the present invention, and FIG. 4b is a drawing showing the direction in which heat is provided from the hot air providing unit 120 according to the embodiment of the present invention. It is a drawing which showed the direction which the warmed air moves.

With reference to FIG. 4a, the direction in which the hot air H is discharged from the hot air providing unit 120 is illustrated. The hot air H can be discharged from the hot air providing unit 120 in all directions, but since the temperature is relatively high in the heat exchange box 101, the hot air H moves upward and heat exchange by convection can be performed. As illustrated in FIG. 4b, the hot air H that has moved upward can be sucked by the suction unit 130 and flow into the heating box 4. This is for reheating the air whose temperature has dropped due to heat exchange in the heating box 4, and the circulation cycle in which the reheated air re-flows into the heat exchange box 101 via the hot air providing unit 120. Is formed. The temperature already determined by such a cycle can be maintained in the heat exchange box 101.

Of course, since the inlet I and the outlet O through which the packaging material F enters and exits the heat exchange box 101 are open, the inlet I and the outlet O are located outside the movement path of the hot air H in the heat exchange box 101. , The influence of the temperature drop of the hot air H is minimized so that the temperature control becomes efficient.

The already determined temperature is, for example, normal temperature or higher and can be determined within a range of 100 degrees or lower. The temperature setting inside the heat exchange box 101 can be confirmed and set via the display unit 1. Further, the control of the hot air blower 10 by the display unit 1 can control not only the temperature setting in the heat exchange box 101 but also the transfer speed of the via roller 112. Of course, the control of the transfer speed is the rotation speed of the via roller 112, and the rotation speed of the transit roller 112 is controlled as a drive roller directly connected to the motor or a driven roller connected to the drive roller by a belt. be able to.

Further, the transfer speed of the rollers 5, 111, 112, 113, 114 and the temperature of the hot air H can be automatically determined by the remaining one condition depending on the transfer speed or the temperature. For example, if the temperature is determined by the user, the transfer rate corresponding to the temperature is automatically determined. Conversely, if the transfer rate is determined by the user, the temperature can be automatically determined to correspond to the transfer rate.

That is, the correlation between the temperature and the transfer rate can determine the temperature and the transfer rate with each other. If the temperature and the transfer rate exceed the allowable range due to the correlation, the seams of the packaging material F may be caught or the bending may not be removed if the influence of the heat from the hot air H is small. However, if it is greatly affected by heat, a part of the packaging material F may be fused to a structure such as a roller. Therefore, the temperature and the transfer rate can be determined by reflecting the correlation that the transfer rate increases as the temperature is set higher and the transfer rate decreases as the temperature is set lower.

Although the typical examples of the present invention have been specifically described above, a person having ordinary knowledge in the technical field to which the present invention belongs can do so within the scope of the present invention with respect to the above-mentioned examples. You will understand that various variants are possible. Therefore, the scope of the rights of the present invention should not be defined only in the described examples, and should be defined not only by the claims described later but also by those equivalent to the claims. Is.

1: Display 2: Moving base 2': Moving wheel 3: Switchboard 4: Heating box 5: Transfer roller 10: Hot air blower 101: Heat exchange box 111: Inflow roller 112: Via roller 113: Discharge roller 114: Guide roller 120: Hot air supply part 130: Suction part 140: Temperature sensing part F: Packaging material H: Hot air I: Inlet O: Outlet

Claims (9)

A heating box that increases the temperature of the air by exchanging heat,
A heat exchange box in which the air having an increased temperature due to the heating box flows in and heat exchanges between the air and the packaging material.
Includes a plurality of rollers that guide the packaging material through the heat exchange box.
In the heat exchange box
A hot air providing unit that provides the air that has exchanged heat from the heating box and a suction unit that re-flows the air provided from the hot air providing unit into the heating box are located.
The plurality of rollers are hot air blowers, wherein the packaging material forms a transfer path for the packaging material so as to pass through the heat exchange box. The hot air blower according to claim 1, wherein the hot air providing portion inside the heat exchange box is located below the suction portion. The hot air blower according to claim 1 or 2, wherein the air provided from the hot air providing unit is heat exchanged with the packaging material by a heat exchange method through convection in the heat exchange box. The plurality of rollers
The inflow roller that guides the packaging material to the inside of the heat exchange box, the transit roller that transfers the packaging material guided from the inflow roller from the bottom to the top, and the packaging material guided from the transit roller are described. The hot air blower according to any one of claims 1 to 3, further comprising a discharge roller that guides the outside of the heat exchange box. The plurality of rollers
The hot air blower according to claim 4, further comprising a guide roller arranged at one or more positions between the inflow roller and the via roller and between the via roller and the discharge roller. The hot air blower according to any one of claims 1 to 5, wherein the temperature of the air provided from the hot air providing unit is determined within the range of room temperature or higher and 100 degrees or lower. Further including a temperature sensor unit located on the suction unit side,
The hot air blower according to any one of claims 1 to 6, wherein the degree of heat exchange performed in the heat exchange box is determined according to the temperature sensed by the temperature sensor unit. The hot air blower according to any one of claims 1 to 7, further comprising a control unit that controls the heat exchange performed in the heat exchange box and the transfer speed of the packaging material by the plurality of rollers. The hot air according to claim 8, further comprising a display unit capable of inputting a temperature controlled by the control unit and displaying the transfer speed of the plurality of rollers and the temperature of the air in the heat exchange box. Machine.

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