Screen printing plate drying oven
By setting a blowing space and heating mechanism at the corners of the screen oven, the gas is sprayed out from the corners and diffused after being heated, the problem of uneven heat during the screen drying process is solved, and a more uniform and efficient drying effect is achieved.
Patent Information
- Application Number
- CN202421776706.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-25
AI Technical Summary
In the prior art, the screen plate is heated unevenly due to direct gas blowing during drying.
A mesh oven is designed. By setting a blowing space and heating mechanism at the corner positions of the box, the gas is sprayed out from the corner positions of the box after heating, and it is transmitted through the channel to avoid direct blowing and ensure uniform distribution of the gas.
The uniform drying of the screen is achieved, avoiding the problem of uneven heating, and the gas stays in the heating mechanism for a longer time, diffuses onto the screen after being fully heated, improving the drying efficiency.
Smart Images
Figure CN223011034U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of ovens, in particular to a screen oven. Background Art
[0002] The screen needs to be dried after the coating step. Traditional drying ovens use a fan installed at the top of the air outlet to blow out gas, and heat the gas through an electric heating wire, but the gas blown out is straight in a fixed direction.
[0003] The position of the screen facing the air outlet is always dried by the gas, while the other positions of the screen are dried by the temperature increase in the oven, which causes uneven heating of the screen.
[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention
[0005] In view of the shortcomings of the above-mentioned prior art, the purpose of the present utility model is to provide a screen drying oven to solve the problem in the prior art that the position of the screen facing the air outlet is always subjected to gas drying, while other positions of the screen are dried by the temperature increase in the oven, resulting in uneven heating of the screen.
[0006] To achieve the above purpose, the technical solution of the utility model is as follows:
[0007] A screen oven;
[0008] It includes: a blowing head; a box body; a blowing space formed at the upper end of the box body and extending to the corner position of the box body; a heating mechanism arranged in the blowing space; a blowing device arranged on the box body; an air suction space formed in the middle position of the upper and lower ends of the box body along the screen arrangement direction; an air suction device arranged on the box body; wherein the blowing end of the blowing device faces the heating mechanism; the air suction end of the air suction device is connected to the air suction space; a channel connected to the blowing end of the blowing space is formed in the blowing head; the channel is relatively oriented and inclined toward the screen.
[0009] A further technical solution is that the blowing space includes: a main space, accommodating the heating mechanism; a branch space, arranged along the corner of the box; wherein the main space and the branch space are connected to each other; and the blowing head is connected to the branch space.
[0010] A further technical solution is that the heating mechanism includes: a plate body arranged in a honeycomb shape; a flow hole opened at the bottom of the plate body; an electric heating wire connected to a power supply; wherein the flow holes are respectively connected to the blowing space and the inside of the plate body; and the electric heating wire is arranged on the plate body.
[0011] A further technical solution is that the blowing head includes: a head body disposed along the corner position of the box body; a sub-component disposed within the head body; wherein, the channel is formed within the head body around the sub-component.
[0012] A further technical solution is that the sub-component includes a first sub-surface perpendicular to the gas flow direction and a second sub-surface disposed obliquely; the first sub-surface and the second sub-surface are transitioned by a curved surface.
[0013] A further technical solution is that a side space is communicated between the suction spaces; the suction end of the suction device is communicated with the side space.
[0014] A further technical solution is that a transverse plate is disposed within the suction space; notches are disposed at both ends of the transverse plate; the notches communicate both sides of the transverse plate.
[0015] A further technical solution is that the blowing device is a blower; the suction device is an exhaust fan.
[0016] Compared with the prior art, the beneficial technical effects of the present utility model are as follows: (1) After the gas is heated, it is ejected from the corner position within the box body, and the gas does not directly act on the surface of the screen plate. The gas flows between adjacent screen plates, and the drying of the screen plate is completed through the heat of the gas itself; when the gas is ejected, it enters the box body after colliding through the channel to complete diffusion, avoiding the direct blowing of the gas and causing inconsistent heating of the screen plate.
[0017] (2) When the gas flows through the circulation holes, not all the gas enters the branch space. A part of the gas will flow into the adjacent heating space and finally enter the branch space, so that the residence time of the gas within the heating mechanism is prolonged, and the gas can be fully heated.
[0018] (3) When the gas in the branch space flows into the channel, the gas contacts the first sub-surface, and the gas is respectively shunted in the up and down directions along the first sub-surface. The gas transitions to the second sub-surface, and the two shunted gases collide and then diffuse towards the screen plate.
[0019] (4) By providing notches on the transverse plate, adsorption is formed on the left and right sides of the suction space through the notches, so that the adsorption of the gas is dispersed, avoiding the overly concentrated flow of the gas and causing the influence of heat concentration on the screen plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 Shows a schematic side view structure of a screen plate oven according to an embodiment of the present utility model.
[0021] Figure 2 Shows Figure 1 An enlarged structural view of the position of the heating mechanism in
[0022] Figure 3 shows Figure 1 an enlarged structural view of the blowing head position in
[0023] Figure 4 shows a front view structural schematic diagram of the air suction space and the air suction device according to an embodiment of the present invention.
[0024] Reference numerals in the drawings: 1, box body; 11, frame; 2, blowing space; 21, main space; 22, branch space; 3, heating mechanism; 31, plate body; 32, flow hole; 33, electric heating wire; 4, blowing device; 5, air suction space; 51, side space; 52, cross plate; 53, notch; 6, air suction device; 7, blowing head; 71, channel; 72, head body; 73, sub - part; 731, first sub - surface; 732, second sub - surface. Detailed implementation manners
[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the following further details the device proposed by the present invention in combination with the drawings and specific implementation manners. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the drawings adopt a very simplified form and use non - precise scales, only for the purpose of conveniently and clearly assisting in explaining the implementation manners of the present invention. In order to make the objectives, features and advantages of the present invention more obvious and understandable, please refer to the drawings. It should be noted that the structures, scales, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the objectives that can be achieved, should still fall within the scope covered by the technical content disclosed by the present invention.
[0026] Figure 1 shows a side view structural schematic diagram of a screen printing oven according to an embodiment of the present invention. Figure 2 shows Figure 1 an enlarged structural view of the position of the heating mechanism in Figure 3 shows Figure 1 an enlarged structural view of the blowing head position in. In combination with Figures 1-3 as shown, the present invention discloses a screen printing oven.
[0027] The screen printing oven includes: a blowing head 7, a box body 1, a blowing space 2 formed at the upper end of the box body 1 and extending towards the corner positions of the box body 1, a heating mechanism 3 arranged in the blowing space 2, a blowing device 4 arranged at the upper end of the box body 1, an air suction space 5 formed at the middle positions of the upper and lower ends of the box body 1 along the screen printing arrangement direction, and an air suction device 6 arranged on the side surface of the box body 1.
[0028] Among them, the blowing end of the blowing device 4 faces the heating mechanism 3. The blowing device 4 generates gas and blows it towards the heating mechanism 3. The heating mechanism 3 heats the gas, and the gas enters the blowing space 2 and flows. The gas is blown out from the corner position of the box body 1 through the blowing head 7.
[0029] A channel 71 communicating with the blowing end of the blowing space 2 is formed in the blowing head 7. The channel 71 faces and inclines towards the screen plate.
[0030] One end of the channel 71 communicates with the blowing space 2. The other end of the channel 71 extends towards the upper and lower sides respectively and then faces and inclines towards the screen plate. So that the gas is blown out obliquely at the other end of the channel 71, and the two gas flows blown out at the other end of the channel 71 collide with each other and then diffuse towards the screen plate.
[0031] The suction end of the suction device 6 communicates with the suction space 5. The gas flows between the screen plates. The suction device 6 generates suction, and the gas flows upward or downward respectively and is adsorbed by the suction space 5, and then is discharged through the suction device 6.
[0032] After the gas is heated, it is blown out from the corner position inside the box body 1. The gas does not directly act on the surface of the screen plate. The gas flows between adjacent screen plates, and the drying of the screen plate is completed by the heat of the gas itself. When the gas is blown out, it enters the box body 1 after being diffused through the collision of the channel 71, avoiding the direct blowing of the gas and causing inconsistent heating of the screen plate.
[0033] The box body 1 has a hollow structure inside. A box door is hinged on the box body 1 to open or close the box body 1. A frame 11 is provided at the lower end inside the box body 1.
[0034] The screen plates are placed in the front-back direction on a movable support, and the adjacent screen plates are arranged in the left-right direction. When the movable support is moved into the box body 1, the movable support is located on the frame 11, and the frame 11 separates the movable support from the suction space 5 and the blowing head 7 to avoid interference between them.
[0035] The blowing space 2 includes: a main space 21 for accommodating the heating mechanism 3 and a branch space 22 arranged along the corner position of the box body 1. The main space 21 is located above the box body 1. The branch space 22 is arranged along the corner position of the inner surface of the box body 1.
[0036] Among them, the main space 21 and the branch space 22 communicate with each other. The blowing head 7 communicates with the branch space 22.
[0037] Exemplarily, there are four groups of blowing heads 7. The blowing heads 7 are respectively located on the front and rear sides of the upper end inside the box body 1 and the front and rear sides of the lower end inside the box body 1.
[0038] The heating mechanism 3 includes: a plate body 31 arranged in a honeycomb pattern, a circulation hole 32 opened at the bottom of the plate body 31, and an electric heating wire 33 connected to a power source.
[0039] Exemplarily, the blowing device 4 is a blower. The plate body 31 divides the main space 21 into a plurality of polygonal heating spaces.
[0040] Among them, the circulation holes 32 communicate with the blowing space 2 and the inside of the plate body 31 respectively. The electric heating wire 33 is arranged on the plate body 31.
[0041] The circulation holes 32 communicate with adjacent heating spaces and also communicate the heating spaces and the branch space 22. The electric heating wire 33 heats the plate body 31, the blowing device 4 blows gas into the heating space, the plate body 31 heats the gas, and the gas flows into the branch space 22 through the circulation holes 32. The gas is discharged through the blowing head 7 into the box body 1.
[0042] When the gas flows through the circulation holes 32, not all the gas enters the branch space 22. A part of the gas will flow into the adjacent heating space and finally enter the branch space 22, so that the residence time of the gas in the heating mechanism 3 is prolonged and the gas can be fully heated.
[0043] The blowing head 7 includes: a head body 72 arranged along the corner position of the box body 1 and a sub-component 73 arranged inside the head body 72. Among them, the channel 71 is formed inside the head body 72 around the sub-component 73.
[0044] The head body 72 is arranged in the left-right direction. The sub-component 73 is arranged in the left-right direction inside the head body 72.
[0045] The sub-component 73 includes a first dividing surface 731 perpendicular to the gas flow direction and a second dividing surface 732 arranged obliquely. The first dividing surface 731 and the second dividing surface 732 are in a curved surface transition with each other.
[0046] When the gas in the branch space 22 flows into the channel 71, the gas contacts the first dividing surface 731, and the gas is respectively shunted in the up and down directions along the first dividing surface 731. The gas transitions to the second dividing surface 732, and the two shunted gas flows collide and then diffuse towards the screen plate.
[0047] Figure 4 The front view structural schematic diagram of the suction space and the suction device in the embodiment of the present invention is shown. In combination with Figures 1-4 As shown, there is a side space 51 communicating between the suction spaces 5. The suction end of the suction device 6 communicates with the middle position of the side space 51. The upper and lower ends of the side space 51 communicate with the suction spaces 5. Exemplarily, the suction device 6 is an exhaust fan.
[0048] The suction spaces 5 are arranged in the left-right direction at the middle positions of the upper and lower ends inside the box body 1. The side space 51 is arranged on the side surface of the box body 1.
[0049] A horizontal plate 52 is arranged in the left-right direction inside the suction space 5. Notches 53 are arranged at the left and right ends of the horizontal plate 52. The notches 53 communicate the upper and lower sides of the horizontal plate 52.
[0050] After the suction device 6 operates, the suction space 5 adsorbs the gas in the box body 1. The adsorption force at the position of the suction space 5 close to the suction device 6 is stronger, and the adsorption force at the position of the suction space 5 far from the suction device 6 is weaker.
[0051] By providing a notch 53 on the cross plate 52, adsorption is formed on the left and right sides of the suction space 5 through the notch 53, so that the adsorption of the gas is dispersed, avoiding the over-concentration of gas flow and causing the heat to concentrate and affect the screen plate.
[0052] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0053] The above-described embodiments only express several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.
Claims
1. A screen oven, characterized in that: include: Blowing head (7); Box body (1); An air blowing space (2) is formed at the upper end of the box body (1) and extends to the corner of the box body (1); a heating mechanism (3) is arranged in the air blowing space (2); An air blowing device (4) is arranged on the box body (1); An air suction space (5) is formed in the middle of the upper and lower ends of the box body (1) along the screen arrangement direction; An air suction device (6) is arranged on the box body (1); The blowing end of the blowing device (4) faces the heating mechanism (3); the suction end of the suction device (6) is connected to the suction space (5); a channel (71) connected to the blowing end of the blowing space (2) is formed in the blowing head (7); and the channel (71) faces relative to and is inclined toward the screen.
2. The screen oven according to claim 1, characterized in that: The blowing space (2) comprises: A main space (21) for accommodating the heating mechanism (3); A support space (22) is arranged along a corner of the box body (1); The main space (21) and the branch space (22) are connected to each other; and the blowing head (7) is connected to the branch space (22).
3. The screen oven according to claim 1, characterized in that: The heating mechanism (3) comprises: The plate body (31) is arranged in a honeycomb shape; A flow hole (32) is provided at the bottom of the plate body (31); An electric heating wire (33) connected to a power source; Wherein, the flow holes (32) are respectively connected to the blowing space (2) and the plate body (31); The electric heating wire (33) is arranged on the plate body (31).
4. The screen oven according to claim 1, characterized in that: The blowing head (7) comprises: A head body (72) is arranged along the corner of the box body (1); A sub-component (73) is arranged in the head body (72); Wherein, the channel (71) is formed in the head body (72) around the sub-component (73).
5. The screen oven according to claim 4, characterized in that: The segment (73) comprises a first segment face (731) perpendicular to the gas flow direction and a second segment face (732) arranged obliquely; the first segment face (731) and the second segment face (732) transition to each other in a curved manner.
6. The screen oven according to claim 1, characterized in that: The air intake spaces (5) are connected to a side space (51); the air intake end of the air intake device (6) is connected to the side space (51).
7. The screen oven according to claim 1, characterized in that: A transverse plate (52) is arranged in the air intake space (5); notches (53) are arranged at both ends of the transverse plate (52); and the notches (53) are connected to both sides of the transverse plate (52).
8. The screen oven according to claim 1, characterized in that: The air blowing device (4) is a fan; the air suction device (6) is an exhaust fan.