Hot air oven with air guide grooves

Abstract

A hot air oven with an air guide groove comprises an oven body, an oven cover covering the oven body, an air inlet pipe and an air outlet pipe, open grooves are formed in the left side and the right side of the oven cover, a middle partition plate is further arranged in the oven body, a drying chamber is defined by the middle partition plate and the oven cover, and an air chamber is defined by the middle partition plate and the bottom of the oven body. The air chamber is arranged in the box body, the air inlet pipe and the air outlet pipe are both located at the front end of the box body and communicated with the air chamber, the middle partition plate is provided with a plurality of air knives and air guide grooves, the air guide grooves are located in the left side and the right side of the middle partition plate respectively, the problem that the temperature of the box body is too high, and printing stocks are prone to being burnt is solved, and meanwhile the drying effect of the printing stocks is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of printing equipment, in particular to a hot air drying oven with air guide grooves. Background Art

[0002] my country's printing industry has a long history, and its products are used in all areas of national economic life. With the development of society and the progress of social life, the printing industry continues to grow and develop. Market competition is becoming increasingly fierce, printing costs are rising, and customers' requirements for quality and speed are becoming increasingly stringent. Therefore, to ensure continued business growth in the future, manufacturers need to improve product efficiency and ensure product quality. In the process of ink drying on the printed substrate, it is necessary to ensure that the ink dries quickly and effectively.

[0003] The devices used for ink drying in the printing industry usually adopt hot air drying. Existing hot air oven drying systems, for example: Chinese utility model CN207736952U discloses an oven drying system specifically for plastic water-based ink printing, which includes a printing drying oven and an electric heating air circulation energy-saving system. The electric heating air circulation energy-saving system includes a heat exchanger and a fan. The printing drying oven includes a box body, which is provided with at least one air inlet connected to the heat exchanger, and at least one air outlet connected to the heat exchanger; the air inlet and the air outlet are both arranged on one side of the box body and connected to the heat exchanger. However, since the inhaled hot air is directly sucked out through the air outlet after use in the same chamber, the hot air in the box body accumulates too much and is not easy to dissipate, resulting in excessive temperature of the box body, poor drying effect and easy burn of the printed material. Utility Model Content

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to design a hot air drying oven with an air guide groove. The hot air in the printing drying oven is sucked into the air outlet chamber through the air guide groove and then sucked out, so that the hot air in the box is not easy to gather and is easy to disperse, thereby solving the problem that the printing substrate is easily damaged by the high temperature of the box, and at the same time enhancing the drying effect of the printing substrate.

[0005] To achieve the above-mentioned purpose, the utility model provides a hot air drying oven with air guide grooves, comprising a box body, a box cover covering the box body, an air inlet pipe and an air outlet pipe, the left and right sides of the box cover are provided with slots, and a middle partition is also provided in the box body, the middle partition and the box cover form a drying chamber, the middle partition and the bottom of the box body form an air chamber, the air inlet pipe and the air outlet pipe are both located at the front end of the box body and are both connected to the air chamber, a plurality of wind knives and air guide grooves are provided on the middle partition, and the air guide grooves are respectively located on the left and right sides of the middle partition.

[0006] Furthermore, the air guide groove is narrow at the front and wide at the back, and the opening width gradually increases from the front to the back.

[0007] Furthermore, two partitions are provided in the air chamber, which divide the air chamber into an air inlet chamber and two left and right air outlet chambers. The air inlet pipe is connected to the front end of the air inlet chamber, and the two air outlet pipes are respectively connected to the front ends of the two air outlet chambers.

[0008] Furthermore, an upwardly inclined plate is provided in the air inlet chamber from front to back, and the front end of the inclined plate is located below the air inlet pipe.

[0009] Furthermore, the wind knife is provided with two left and right air guide blades, and the distance between the two air guide blades gradually increases from top to bottom, and the inclination angle is 30°~60°.

[0010] Furthermore, the hot air oven further comprises a handle, which is mounted at the rear end of the box cover, the front end of the box cover is hinged to the box body, and the rear end of the box cover is connected to the box body via a snap-fit ​​structure.

[0011] Furthermore, the hot air oven also includes a handle, which is installed at the rear end of the box cover. The front end of the box cover is coaxially connected to the box body, and the rear end of the box cover is connected to the box body through a snap-fit ​​structure.

[0012] After adopting the above technical solution, the beneficial effects are:

[0013] An air guide slot is set in the hot air drying oven, which draws the hot air gathered in the drying room to the air outlet chamber below through the air guide slot and then sucks it out, so that the hot air in the box is not easy to gather and is easy to disperse, thereby solving the problem of the box temperature being too high and easily burning the substrate, and also enhancing the drying effect of the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a product schematic diagram of the hot air drying oven involved in the present utility model;

[0015] Figure 2-1 This is a front view of the hot air drying oven involved in the present utility model;

[0016] Figure 2-2 for Figure 2-1 Cross-section at CC;

[0017] Figure 3-1 This is a right side view of the hot air drying oven involved in the present utility model;

[0018] Figure 3-2 for Figure 3-1 Cross-section at AA;

[0019] Figure 4 This is a schematic diagram of the structure of the middle partition of the hot air oven involved in the utility model;

[0020] The accompanying drawings are marked as follows: 1, box body; 2, box cover; 3, air inlet pipe; 4, air outlet pipe; 5, middle partition; 6, drying chamber; 7, air chamber; 8, inclined plate; 9, handle; 51, air knife; 52, air guide slot; 71, air inlet chamber; 72, air outlet chamber; DETAILED DESCRIPTION

[0021] The following further describes the technical solution of the present invention through examples. Obviously, the described examples are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1 、 Figure 2-1 、 Figure 2-2 、 Figure 3-1 and Figure 3-2 As shown, the utility model provides a hot air drying oven with air guide grooves, comprising a box body 1, a box cover 2 covering the box body 1, an air inlet pipe 3 and an air outlet pipe 4. Slots are provided on the left and right sides of the box cover 2 for horizontally placing the printed material to be dried. A middle partition 5 is also provided in the box body 1. The middle partition 5 divides the hot air drying oven into two parts, an upper part is a drying chamber 6 formed by the middle partition 5 and the box cover 2, and a lower part is an air chamber 7 formed by the middle partition 5 and the bottom of the box body 1. Two partitions are provided in the air chamber 7, and the two partitions divide the air chamber 7 into an air inlet chamber 71 and two left and right air outlet chambers 72. The air inlet pipe 3 is connected to the front end of the air inlet chamber 71, and the two air outlet pipes 4 are respectively connected to the front ends of the two air outlet chambers 72. A plurality of air knives 51 and air guide grooves 52 are provided on the middle partition 5. The air guide grooves 52 are respectively located on the left and right sides of the middle partition 5 and connect the drying chamber 6 and the air chamber 7.

[0023] In this embodiment, the hot air oven further includes a handle 9, which is mounted on the rear end of the box cover 2. The front end of the box cover 2 is hinged to the box body 1, and the rear end of the box cover 2 is connected to the box body 1 via a snap structure. However, in other embodiments, the front end of the box cover 2 is coaxially connected to the box body 1.

[0024] Preferably, Figure 4 As shown, the air guide groove 52 adopts a structure that is narrow at the front and wide at the back, with the opening width of the air guide groove 52 gradually increasing from the front to the back. When the hot air drying oven is in operation, a large amount of hot air is delivered to the air inlet chamber 71 through the air inlet pipe 3, and then gathered in the drying chamber 6 by the air knife 51. At this time, the air pressure at the front end of the drying chamber 6 is stronger than that at the back end, forcing the hot air to flow more quickly from the open back end to the air outlet chamber 72 below and be sucked out. This effectively stabilizes the temperature in the cabinet 1, prevents the cabinet 1 from overheating and easily damaging the printed material, and also enhances the drying effect of the printed material.

[0025] Preferably, an upwardly inclined plate 8 is installed from front to back in the air inlet chamber 71, with the front end of the inclined plate 8 located below the air inlet pipe 3. Hot air enters the air inlet chamber 71 through the air inlet pipe 3, gathers above the inclined plate 8, and flows into the drying chamber 6 through the air knife 51 above. The inclined plate 8 divides the air inlet chamber 71 into two spaces, which helps increase the pressure of the incoming hot air and makes the hot air blown out by the air knife 51 more intense.

[0026] Preferably, the air knife 51 is provided with two left and right air guides, with the distance between the two air guides gradually increasing from top to bottom, and the angle of inclination with respect to the horizontal direction is 30° to 60°. When the angle is 30°, the air blown by the air knife 51 is distributed over a wider range and has a moderate intensity, which is suitable for drying inks with high water content. When the angle is 60°, the air blown by the air knife 51 is more concentrated and has a higher intensity, which is suitable for quickly drying inks with low water content.

[0027] The air inlet pipe 3 is connected to an external electric heating air supply system, and the air outlet pipe 4 is connected to an external fan to suck hot air from the box body 1.

[0028] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A hot air oven with air guide grooves, comprising a box body, a box cover covering the box body, an air inlet pipe and an air outlet pipe, wherein the box cover is provided with slots on both sides thereof, characterized in that: A middle partition is also provided in the box body, and the middle partition and the box cover form a drying chamber, and the middle partition and the bottom of the box body form an air chamber. The air inlet pipe and the air outlet pipe are both located at the front end of the box body and are both connected to the air chamber. A number of wind knives and air guide grooves are provided on the middle partition, and the air guide grooves are respectively located on the left and right sides of the middle partition.

2. The hot air oven with air guide grooves according to claim 1, characterized in that: The air guide groove is narrow at the front and wide at the back, and the opening width gradually increases from the front to the back.

3. The hot air oven with air guide grooves according to claim 1, characterized in that: Two partitions are provided in the air chamber, which divide the air chamber into an air inlet chamber and two left and right air outlet chambers. The air inlet pipe is connected to the front end of the air inlet chamber, and the two air outlet pipes are respectively connected to the front ends of the two air outlet chambers.

4. The hot air oven with air guide grooves according to claim 3, characterized in that: An upwardly inclined plate is provided in the air inlet chamber from front to back, and the front end of the inclined plate is located below the air inlet pipe.

5. The hot air oven with air guide grooves according to claim 1, characterized in that: The wind knife is provided with two left and right air guide blades, and the distance between the two air guide blades gradually increases from top to bottom, and the inclination angle is 30°~60°.

6. The hot air oven with air guide grooves according to claim 1, characterized in that: The hot air oven further comprises a handle, which is mounted on the rear end of the box cover. The front end of the box cover is hinged to the box body, and the rear end of the box cover is connected to the box body via a snap-fit ​​structure.

7. The hot air oven with air guide grooves according to claim 1, characterized in that: The hot air oven further comprises a handle, which is mounted on the rear end of the box cover. The front end of the box cover is coaxially connected to the box body, and the rear end of the box cover is connected to the box body via a snap-fit ​​structure.

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