CN117360071A

CN117360071A - Oven capable of preventing thin carrier from wrinkling

Info

Publication number: CN117360071A
Application number: CN202311528303.6A
Authority: CN
Inventors: 史小灵; 周骏
Original assignee: Shaoxing Print Intelligent Machinery Manufacturing Co ltd
Current assignee: Shaoxing Print Intelligent Machinery Manufacturing Co ltd
Priority date: 2023-11-15
Filing date: 2023-11-15
Publication date: 2024-01-09

Abstract

The application discloses an oven capable of preventing thin carrier wrinkles, which comprises a box body, at least one fan, at least one group of heat generators and a supporting plate, wherein the box body is provided with a feeding end and a discharging end; the box body forms a mounting cavity between the feeding end and the discharging end, and a group of air outlets communicated with the mounting cavity are also formed between the feeding end and the discharging end; the fan is arranged in the installation cavity of the box body, which is close to the feeding end, the heat generator is also arranged in the installation cavity and is positioned on a flowing path of flowing air formed by the fan, the supporting plate is arranged above the air outlet and forms an arc surface towards one side of the air outlet, and the arc surface is provided with a crease-resistant structure.

Description

Oven capable of preventing thin carrier from wrinkling

Technical Field

The invention relates to the field of mechanical equipment for printing, in particular to an oven capable of preventing a thin carrier from wrinkling.

Background

Printing is currently performed on thin carriers such as paper and cloth by printing equipment to form various beautiful patterns or pictures, wherein the printing mode is divided into spray printing and printing. Jet printing requires that the ink be relatively sprayed on a thin carrier according to a predetermined trajectory.

In order to prevent the ink from touching other objects before drying and causing marking dirt on the thin carrier, a drying process is usually needed after the thin carrier is subjected to spray printing. The drying device commonly used at present is an oven. The existing ovens do to some extent enable the drying of the ink on a thin carrier. However, conventional ovens also have a number of drawbacks.

First, in the conventional oven, when drying a thin support, hot air formed by a heating pipe is generally directed to a side of the thin support on which ink is sprayed by a fan. In the process of drying the thin carrier by hot air, the thin carrier is contracted due to heating, so that folds of different degrees are easy to appear on the thin carrier, and the original uniform picture on the thin carrier is dislocated due to the folds, so that the quality of the finally formed picture is responded.

In addition, when the thin carrier is dried by the existing oven, wind pressure received along the extending direction of the thin carrier is extremely uneven, so that the thin carrier shakes seriously.

More importantly, a plurality of fans are arranged in some ovens, and when the fans blow, the thin carrier between the two fans tends to shake violently. As a result, there is a significant run of ink on the thin carrier that is not dry, thereby affecting the quality and yield of the final finished product.

Disclosure of Invention

An advantage of the present invention is to provide an oven that is resistant to wrinkling of a thin carrier, wherein the oven is capable of reducing the degree of wrinkling of the thin carrier when it is heated and dried, and in particular, the degree of wrinkling of the paper when it is heated.

Another advantage of the present invention is to provide an oven that can prevent wrinkles of a thin carrier, wherein the oven that can prevent wrinkles of a thin carrier can realize recycling of hot air without providing two fans that blow air in opposite directions.

Another advantage of the present invention is to provide a thin carrier fold resistant oven that reduces energy consumption of the thin carrier fold resistant oven.

Another advantage of the present invention is to provide an oven that is resistant to thin carrier wrinkles, wherein the oven is capable of preventing the thin carrier from shaking drastically.

Another advantage of the present invention is to provide a thin carrier pucker resistant oven that is less structurally modified from existing ovens, thereby reducing retrofitting costs.

Another advantage of the present invention is to provide an oven that can prevent wrinkles of a thin carrier, wherein the oven can prevent air pressure disturbance caused by a single fan, thereby effectively reducing the amplitude of shaking when the thin carrier is dried through the oven.

Another advantage of the present invention is to provide a thin carrier fold resistant oven that can achieve circulation of hot air by providing a fan, thereby relatively reducing the volume and weight of the oven while achieving thermal recycling.

To achieve at least one of the above advantages, the present invention provides an oven for preventing wrinkles of a thin carrier, the oven comprising:

the box body is provided with a feeding end and a discharging end; the box body forms a mounting cavity between the feeding end and the discharging end, and a group of air outlets communicated with the mounting cavity are also formed between the feeding end and the discharging end; defining a transverse direction from the feed end to the discharge end;

at least one fan, the fan is arranged in the installation cavity of the box body close to the feeding end; and

at least one set of heat generators also disposed in the mounting chamber and located in the flow path of the flowing air formed by the blower;

the supporting plate is arranged above the air outlet, an arc surface is formed towards one side of the air outlet, and a crease-resistant structure is arranged on the arc surface.

According to an embodiment of the present invention, the wrinkle preventing structure includes at least one pair of ribs, wherein the pair of ribs are symmetrically disposed on the arc surface along the lateral direction, and a distance between ends of two of the pair of ribs near the feed end is smaller than a distance between ends near the discharge end.

According to an embodiment of the present invention, the wrinkle preventing structure includes a plurality of pairs of the ribs, one of the ribs of each of the pairs being arranged at intervals along the longitudinal direction on one side of the arc surface in the longitudinal direction, and the other of the ribs being arranged at intervals along the longitudinal direction on the other side of the arc surface in the longitudinal direction.

According to one embodiment of the invention, the box body is further provided with a return air channel separated from the installation cavity and at least one return air hole communicated with the return air channel; defining a transverse direction from the feeding end to the discharging end, wherein at least one return air hole is formed at two ends of the box body of the oven which can prevent the thin carrier from wrinkling and is perpendicular to the transverse direction; the return air channel is communicated with the air inlet of the fan near the feeding end.

According to one embodiment of the invention, the diameter of the return air hole gradually decreases from the discharge end to the feed end.

According to an embodiment of the present invention, the distance between two adjacent return air holes gradually decreases from the discharge end to the feed end.

According to an embodiment of the invention, the box body is provided with a box main body and an air outlet plate, wherein the box main body forms the installation cavity, the air outlet plate forms the air outlet, and the air outlet plate covers the installation cavity. The box body further comprises at least one partition plate, wherein the partition plate is arranged in the installation cavity to divide the installation cavity into a first installation cavity and a second installation cavity, and a communication channel is formed between the partition plate and the air outlet plate, so that the first installation cavity and the second installation cavity can be communicated through the communication channel.

According to an embodiment of the invention, the box further comprises a return air plate, wherein the return air plate is arranged at the discharge end, and the return air plate is arranged to incline towards the feed end and extend along the longitudinal direction.

According to an embodiment of the invention, the thin carrier puckering resistant oven comprises a plurality of said heat generators, wherein a plurality of said heat generators are arranged at intervals along said transverse direction.

According to an embodiment of the invention, a plurality of the heat generators are disposed at equal intervals along the lateral direction.

Drawings

Fig. 1 shows a perspective view of an oven according to the invention which is resistant to wrinkling by a thin carrier.

Figure 2 shows an exploded view of the oven of the present invention which is resistant to wrinkling by the thin carrier.

Figure 3 shows a top view of an oven of the present invention that is resistant to wrinkling by a thin carrier.

Figure 4 shows a cross-sectional view in direction A-A of figure 3 of an oven for preventing wrinkling of a thin carrier according to the present invention.

Fig. 5 shows a schematic view of an oven according to the invention in an operating state, which oven is resistant to wrinkling with a thin carrier.

Fig. 6 shows a top view of the oven section structure of the present invention that is resistant to wrinkling by the thin carrier.

FIG. 7 shows a cross-sectional view in direction B-B of the oven section block diagram of the thin carrier pucker prevention according to the present invention.

Fig. 8 shows a cross-sectional view of a stay plate of the oven for preventing wrinkles of a thin carrier in accordance with a preferred embodiment of the present invention.

Fig. 9 shows a bottom view of the stay plate of the thin carrier pucker resistant oven of fig. 6 in accordance with a preferred embodiment of the present invention.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present invention.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Referring to fig. 1 to 9, a thin carrier wrinkle preventing oven according to a preferred embodiment of the present invention, which can be used to dry a thin carrier 900 and can cyclically use hot air, will be described in detail below. Those skilled in the art will appreciate that the thin carrier 900 may be a sheet of paper, canvas, or the like, and the present invention is not limited in this respect.

Specifically, the oven for preventing wrinkling of a thin carrier comprises a housing 10, wherein the housing 10 has a feed end 101 and a discharge end 102, wherein the thin carrier 900 is movable towards the discharge end 102 via the feed end 101.

The box body 10 forms a mounting cavity 103 between the feeding end 101 and the discharging end 102, and the box body 10 is between the feeding end 101 and the discharging end 102, and a group of air outlets 104 communicated with the mounting cavity 103 are formed at the top of the mounting cavity 103.

Preferably, the air outlet 104 is oriented obliquely to the discharge end 102 to avoid excessive pressure on the thin carrier 900 due to the air being blown from the air outlet 104 vertically toward the thin carrier 900.

Preferably, the length from the inlet end 101 to the outlet end 102 is defined as a transverse direction, wherein each of the air outlets 104 is arranged to extend along a longitudinal direction of a horizontal direction perpendicular to the transverse direction, so that the hot air formed by the oven for preventing wrinkling of the thin carrier can cover the entire longitudinal width of the thin carrier 900. That is, the air outlet 104 is an elongated opening extending along the longitudinal direction.

Also preferably, the case 10 forms a plurality of the air outlets 104, wherein the plurality of air outlets 104 are arranged at intervals along the lateral direction to increase an area of the thin carrier 900 that the thin carrier wrinkle-preventing oven can dry. More preferably, a plurality of the air outlets 104 are arranged at equal intervals along the lateral direction.

Specifically, the box 10 has a box body 11 and an air outlet plate 12, wherein the top of the box body 11 corresponds to the position to form the installation cavity 103, and the air outlet plate 12 covers the top of the installation cavity 103 and forms the air outlet 104.

The thin carrier pucker resistant oven includes at least one set of heat generators 20 and at least one fan 30. The blower 30 is disposed in the mounting cavity 103 of the housing 10 proximate the feed end 101. The heat generator 20 is also disposed in the mounting chamber 103 and is located in the flow path of the flowing air formed by the blower 30.

The blower 30 is configured to direct air from the inlet end 101 to the outlet end 102, and during the process of directing air from the inlet end 101 to the outlet end 102 by the blower 30, hot air formed by heating the heat generator 20 flows out of the outlet 104 because the air passes through the heat generator 20 and hot air can be guided out of the outlet 104. The exiting hot air is able to dry the ink on the thin carrier 900 opposite the air outlet 104. Preferably, the fan 30 is disposed proximate to the feed section 101.

Preferably, the thin carrier fold-resistant oven comprises a plurality of said heat generators 20, wherein a plurality of said heat generators 20 are arranged at intervals, preferably equally spaced, along said transverse direction. In this way, the thin carrier 900 opposite to the air outlet 104 can be uniformly dried.

It should be noted that, preferably, on at least one of two sides of the installation cavity 103 in the longitudinal direction, at least one return air channel 105 separated from the installation cavity 103 and a set of return air holes 106 communicated with the return air channel 105 are formed on the box 10 of the oven capable of preventing the thin carrier from wrinkling, wherein the return air holes 106 are disposed on top of the return air channel 105, and a set of return air holes 106 are disposed at intervals along the transverse direction. At the same time, the return air channel 105 is connected to the air inlet of the blower 30 near the inlet end 101.

Preferably, at least one return air channel 105 separated from the installation cavity 103 and a set of return air holes 106 communicated with the return air channel 105 are formed on each of two sides of the oven body 10 which is capable of preventing the thin carrier from being wrinkled and is positioned on two sides of the installation cavity 103 in the longitudinal direction. In this way, after the hot air is led out from the air outlet 104, since the fan 30 located near the feeding end 101 continuously guides the air out of the mounting cavity 103 during operation, the utilized hot air can flow back to the air return channel 105 from the air return holes 106 at both sides of the thin carrier 900 under the action of the negative pressure formed by the fan 30 at the feeding end 101, and continuously flows to the air inlet of the fan 30.

The circulation can effectively recycle and utilize the hot air.

Preferably, the case 10 further includes at least one partition 13, wherein the partition 13 is disposed in the installation cavity 103 to divide the installation cavity 103 into a first installation cavity 1031 and a second installation cavity 1032, and a communication passage 108 is formed between the partition 13 and the air outlet plate 12 so that the first installation cavity 1031 and the second installation cavity 1032 can communicate through the communication passage 108.

The blower 30 is mounted to the first mounting chamber 1031. In a preferred embodiment, a plurality of the heat generators 20 are disposed at intervals in the second mounting chamber 1032. Preferably, the communication channels 108 are provided at both sides of the longitudinal direction, so that the hot wind flowing back from the return air hole 106 can be more guided to the second installation cavity 1032 by the blower 30 via the communication channels 108.

It can be appreciated by those skilled in the art that by means of such an arrangement, the oven capable of preventing wrinkles of the thin carrier can realize the recycling of hot air without arranging two fans for blowing air in opposite directions.

Further preferably, the box 10 further includes a return air plate 14, wherein the return air plate 14 is disposed at the discharge end 102, and the return air plate 14 is disposed to extend upward and incline toward the feed end 101. At the same time, the box 10, that is, the air outlet plate 12, forms an air return opening 109 between the air return plate 14 and the feeding end 101 and near the air return plate 14.

Preferably, the return air inlet 109 and the return air plate 14 are each arranged to extend along the longitudinal direction. In this way, when the hot air is guided out from the air outlet 104 by the fan 30 and flows toward the discharge end 102, the hot air is blocked by the return air plate 14, and therefore, a part of the hot air flows back from the return air inlet 109 to the installation cavity 103 due to the blocking of the return air plate 14. In a preferred embodiment, the return air channel 105 communicates with the mounting cavity 103 proximate the discharge end 102, wherein the return air inlet 109 communicates with the return air channel 105. In this way, the hot air flowing back from the air return opening 109 can also flow to the air inlet of the fan 30 through the air return passage 105.

Preferably, in one embodiment, the diameter of the return air hole 106 gradually decreases from the discharge end 102 to the feed end 101. Thus, when the fan 30 is operated, it is possible to reduce the amount of hot air that is drawn from the air outlet 104 near the fan 30 from being excessively drawn back from the return air hole 106. This not only ensures that the thin carrier 900 near the blower 30 is dried with sufficient hot air, but also allows the hot air to circulate back.

In another embodiment, the distance between two adjacent return air holes 106 gradually decreases from the outlet end 102 to the inlet end 101. In this way, interference with the return air holes 106 adjacent to the blower 30 can be reduced when the blower 30 is in operation.

Further preferably, the case 10 further includes a stay 15, wherein both sides of the stay 15 are installed at both longitudinal sides of the case 10, and a material passage 109 is formed between the air outlet plate 12 and the thin carrier 900 to pass through.

The stay plate 15 is covered over the air outlet 104 formed in the case 10, thereby avoiding the loss of hot air. As will be appreciated by those skilled in the art, since the stay 15 and the return air plate 14 are respectively disposed around the air outlet 104, the fan 30 continuously guides the hot air to flow in the direction from the inlet end 101 to the outlet end 102, and then flows back through the return air hole 106. The thin carrier 900 can be dried by sufficiently using hot air by circulating in this way.

More preferably, a cambered surface 1501 is formed on a side of the supporting plate 15 facing the air outlet 104, so as to abut against a side of the thin carrier 900 on which the ink is sprayed. In addition, the cambered surface 1501 is provided with a crease-resist structure 40.

In one embodiment, the crease-resist structure 40 comprises at least one pair of ribs 41, wherein the pair of ribs 41 are symmetrically arranged along the lateral direction on the curved surface 1501, and a spacing between ends of two of the ribs 41 near the feed end 101 is smaller than a spacing between ends near the discharge end 102.

With this arrangement, the wrinkle preventing structure 40 can give the thin carrier 900 a force to spread in the longitudinal direction because the thin carrier 900 is pressed against the wrinkle preventing structure 40 while the thin carrier 900 is dried by the oven that can prevent wrinkles of the thin carrier. It is well known that the thin carrier 900, particularly paper or film, tends to shrink inwardly when heated as it is dried. By providing the wrinkle preventing structure 40, the wrinkle preventing structure 40 provides the outward expansion force to the thin carrier 900 while the thin carrier 900 is being dried, so that the inward shrinkage degree of the thin carrier 900 during drying can be effectively reduced.

Preferably, the wrinkle preventing structure 40 includes a plurality of pairs of the ribs 41. Preferably, one of the ribs 41 in each of the pairs of the ribs 41 is arranged at intervals along the longitudinal direction on one side portion of the curved surface 1501 in the longitudinal direction, and the other of the ribs 41 is arranged at intervals along the longitudinal direction on the other side portion of the curved surface 1501 in the longitudinal direction. In this way, the closer to the arc surface 1501, the larger the space between the pair of ribs 41 along the side in the longitudinal direction.

More preferably, a plurality of pairs of said crease-resist structures 40 are also provided along said transverse direction.

It will be appreciated by those skilled in the art that in this manner, the extent to which the thin carrier 900 is deformed by drying can be effectively reduced.

It should be noted that the cross-sectional dimension of the installation cavity 103 in the vertical direction gradually decreases from the location where the fan 30 is installed to the discharge end 103 along the direction from the feed end 101 to the discharge end 103. As will be appreciated by those skilled in the art, since the amount of gas in the installation cavity 103 of the blower fan is greater at a position closer to the blower fan 30 and the amount of gas in the installation cavity 103 of the blower fan is smaller at a position farther from the blower fan 30, by gradually decreasing the cross-sectional dimension of the installation cavity 103 in the vertical direction from the position where the blower fan 30 is installed to the discharge end 103 along the direction from the feed end 101 to the discharge end 103, the uniformity of the gas pressure in the installation cavity 103 along the direction from the feed end 101 to the discharge end 103 can be ensured as much as possible, and thus, the wind force generated by the hot air blown out from the air outlet 104 can be kept as uniform as possible, and the jitter of the thin carrier 900 can be effectively reduced.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are by way of example only and are not limiting. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and described in the examples and embodiments of the invention may be modified or practiced without departing from the principles described.

Claims

1. Oven that can prevent thin carrier fold, its characterized in that, can prevent oven that thin carrier folded includes:

2. An oven for preventing wrinkles in a thin carrier as claimed in claim 1, wherein said wrinkle preventing structure includes at least one pair of ribs, wherein said pair of ribs are symmetrically disposed along said transverse direction on said arcuate surface, and wherein a spacing between ends of two of said ribs of said pair of ribs adjacent said feed end is smaller than a spacing between ends adjacent said discharge end.

3. An oven for preventing wrinkling of thin carriers according to claim 2, wherein said wrinkle preventing structure comprises a plurality of pairs of said ribs, one of said ribs of each of said pairs being disposed at intervals along said longitudinal direction on one side of said arcuate surface along said longitudinal direction, and the other of said ribs being disposed at intervals along said longitudinal direction on the other side of said arcuate surface along said longitudinal direction.

4. An oven for preventing wrinkling of thin carriers according to any one of claims 1 to 3, wherein said cabinet further defines a return air passage separate from said mounting cavity and at least one return air hole communicating with said return air passage; defining a transverse direction from the feeding end to the discharging end, wherein at least one return air hole is formed at two ends of the box body of the oven which can prevent the thin carrier from wrinkling and is perpendicular to the transverse direction; the return air channel is communicated with the air inlet of the fan near the feeding end.

5. The oven of claim 4 wherein the return air holes gradually decrease in diameter from the discharge end to the feed end.

6. An oven for preventing wrinkling of thin carriers as set forth in claim 4, wherein the spacing between adjacent two of said return air holes gradually decreases from said discharge end to said feed end.

7. The thin carrier pucker resistant oven of any one of claims 4 to 6 wherein the cabinet has a cabinet body and an air outlet plate, wherein the cabinet body forms the mounting cavity, wherein the air outlet plate forms the air outlet and the air outlet plate covers the mounting cavity. The box body further comprises at least one partition plate, wherein the partition plate is arranged in the installation cavity to divide the installation cavity into a first installation cavity and a second installation cavity, and a communication channel is formed between the partition plate and the air outlet plate, so that the first installation cavity and the second installation cavity can be communicated through the communication channel.

8. The thin carrier pucker resistant oven of claim 7 wherein the cabinet further includes a return air plate, wherein the return air plate is disposed at the discharge end and the return air plate is disposed inclined toward the feed end and extends in the longitudinal direction.

9. The thin carrier pucker resistant oven set forth in claim 4 including a plurality of said heat generators, wherein a plurality of said heat generators are spaced apart along said transverse direction.

10. The thin carrier pucker resistant oven set forth in claim 8, wherein a plurality of said heat generators are equally spaced along said transverse direction.