Dyeing drying oven

Abstract

The present application provides a kind of drying oven for dyeing, including box, rotating frame, tensioning mechanism, air outlet and air inlet;Cloth is tensioned under the action of tensioning mechanism, and the two sides of the tensioned cloth can directly exchange heat with hot air;Eliminate the situation that the cloth is directly spread on the fixed cloth rack in the past, which leads to the side of the cloth adhering to the fixed cloth rack cannot fully contact with hot air, thereby ensuring the consistency of the fixation efficiency of the two sides;The dyeing solution in the drying material can move back and forth in a fixed interval under the rotation of the rotating frame, avoiding the situation that the dyeing solution will only move in one direction under the action of its own gravity, ensuring the uniformity of the dyeing of the cloth.

Description

Technical Field

[0001] This invention relates to the field of drying equipment technology, and more specifically to a drying box for dyeing. Background Technology

[0002] Cold dyeing is a process that uses specific dyes and auxiliaries to achieve dyeing and color fixation at room temperature (usually 20-30℃) or lower temperatures (such as 30-40℃). Compared to traditional high-temperature dyeing (60-80℃), its core advantage lies in the elimination of external heating, relying instead on chemical auxiliaries or extended reaction time to achieve the dyeing effect. For example, cold pad-batch dyeing can be used as a method for achieving this.

[0003] 1. Padding: The process of impregnating fabric with a dye solution containing dyes and alkalis.

[0004] 2. Stacking: Stack at room temperature for 4-24 hours to allow the dye to diffuse and fix.

[0005] 3. Post-treatment: Wash with water to remove excess color, and soap wash to improve color fastness.

[0006] Before cold piling dyeing, laboratory sampling is a very important step, as the accuracy of the small sample dyeing directly affects the results of the large sample. The laboratory sampling process involves immersing the fabric in the dye liquor and then using hot air circulation in a drying oven to complete the dye fixation process.

[0007] Because the fixed fabric rack inside a conventional drying oven is usually laid flat, and the dyed fabric sample is spread out on the fixed fabric rack after dyeing, and then the hot air circulation is started to fix the dyed fabric; during this process, because the side of the dyed fabric that is in contact with the fixed fabric rack cannot fully contact the hot air, this can easily lead to different degrees of heat exchange on the two sides of the dyed fabric sample, resulting in different fixing efficiencies on the two sides; and the dye liquor will migrate downwards under its own gravity, resulting in uneven dyeing. Summary of the Invention

[0008] The purpose of this invention is to design a drying oven for dyeing to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: It includes a box body equipped with hot air circulation and a rotating frame installed inside the box body with a horizontal rotation axis. The rotating frame is equipped with several tensioning mechanisms for clamping the drying material. There are air gaps between adjacent tensioning mechanisms. The two sides of the drying material are perpendicular to the rotation axis of the rotating frame. The air outlet and air inlet of the hot air circulation are respectively located on the side wall of the box body. The dye liquor in the drying material will move back and forth within a fixed range under the rotation of the rotating frame.

[0009] Furthermore, the tensioning mechanism includes a limiting frame detachably mounted on the rotating frame, a double-rotating screw rotatably connected to the limiting frame, two movable seats threadedly connected to threaded sections of the double-rotating screw with different directions of rotation, a pad fixed to the movable seats, and a fixing plate mounted on the pad, wherein the fixing pin in the fixing plate is inserted into the end of the drying material.

[0010] Furthermore, the rotating frame includes a rotating frame rotatably connected to the inside of the housing, the rotating frame is provided with a plurality of mounting slots, the limiting frame slides into the mounting slots, the rotating frame is threadedly connected with a limiting bolt, and the limiting frame is fixed on the mounting slot under the action of the limiting bolt.

[0011] Furthermore, the limiting frame is provided with a handle.

[0012] Furthermore, the end of the limiting bolt abuts against the side of the triangular boss of the limiting frame.

[0013] Furthermore, a guide post is installed inside the limiting frame, and a sleeve that is slidably connected to the guide post is fixed to the bottom of the pad.

[0014] Furthermore, the side wall of the box is fixedly connected to a fixing groove, and a fixing block is adjustablely installed inside the fixing groove. The end of the rotating frame is rotatably connected to the fixing block, and the end of the rotating frame opposite to the fixing groove is rotatably connected to the adjusting frame. The inside of the box is provided with an installation cavity and a drying cavity. The adjusting frame is adjustablely installed at the bottom of the installation cavity, and the rotating frame is located inside the drying cavity.

[0015] Furthermore, the mounting cavity and the drying cavity are separated by a partition plate, and the rotating rod of the rotating frame passes through the partition plate.

[0016] Furthermore, the bottom of the box is provided with several air inlets aligned with the limiting frame, and the top of the box is provided with several air outlets aligned with the limiting frame. A hot air flow zone is formed between an air inlet and an air outlet located at both ends of a limiting frame. The drying material is located inside the hot air flow zone, and the box is provided with several hot air flow zones inside.

[0017] Furthermore, both the limiting frame and the mounting groove are provided with several aligned air passage slots or air passage holes, and the hot air generated in the hot air circulation can pass through the air passage slots or air passage holes.

[0018] Furthermore, the housing is also equipped with a control module for controlling the air intake volume of each air inlet. Several gravity sensors are installed between the limiting frame and the mounting groove to periodically measure the weight G1 to Gn of each tensioning mechanism. Let G0 be the standard weight of the tensioning mechanism when the drying material is not clamped, and let Q0 be the standard air intake volume of each air inlet. The control module calculates the periodic air intake volume Qi of each air inlet based on G1 to Gn, G0, and Q0.

[0019]

[0020] Furthermore, the rotating frame is provided with partitions, the tensioning mechanism is located between the two partitions, and a hot air flow area is located between the two partitions.

[0021] Furthermore, the limiting bolt is provided with an optical axis segment, which is tangent to the side wall of the limiting frame, thereby restricting the limiting frame from sliding out of the mounting groove.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. The dyed fabric is tensioned under the action of the tensioning mechanism, and both sides of the tensioned dyed fabric can directly exchange heat with the hot air; this eliminates the previous situation where the dyed fabric was directly laid on the fixed fabric frame, resulting in the side of the dyed fabric that was in contact with the fixed fabric frame not being able to fully contact the hot air, thus ensuring the consistency of the color fixing efficiency on both sides.

[0024] 2. The dye liquor in the drying material can move back and forth within a fixed range under the rotation of the rotating frame, avoiding the situation where the dye liquor will only move in one direction under its own gravity, thus ensuring the uniform dyeing of the fabric. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. 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 creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a partial explosion diagram of the rotating frame and tensioning mechanism;

[0028] Figure 3 This is a schematic diagram of the overall structure of the tensioning mechanism.

[0029] The components include: 1. Box body; 2. Rotating frame; 3. Fixing groove; 4. Tensioning mechanism; 5. Mounting groove; 6. Limiting bolt; 7. Adjusting frame; 8. Limiting frame; 9. Fixing plate; 10. Guide post; 11. Double-rotating screw; 12. Fixing pin; 13. Triangular boss; 14. Handle; 15. Motor; 16. Drying chamber. Detailed Implementation

[0030] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0031] Example 1: Please refer to Figures 1-3 A drying oven for dyeing includes a box body 1 with hot air circulation and a rotating frame 2 installed inside the box body 1 with a horizontal rotation axis. The hot air circulation can adopt a common hot air circulation system, such as a combination of heating wire and fan, which will not be described in detail here. The rotating frame 2 can rotate under the drive of a motor 15. In this embodiment, the rotating frame 2 is provided with several tensioning mechanisms 4 for clamping the drying material. There are air gaps between adjacent tensioning mechanisms 4 to facilitate uniform heating of both sides of the drying material. The drying material is a sample of dyed fabric after dyeing. The dyed fabric is tensioned under the action of the tensioning mechanisms 4, and both sides of the tensioned dyed fabric can directly exchange heat with the hot air. Moreover, the two sides of the drying material are perpendicular to the rotation axis of the rotating frame 2. This eliminates the previous situation where the dyed fabric was directly spread on a fixed fabric frame, resulting in the side of the dyed fabric that was in contact with the fixed fabric frame not being able to fully contact the hot air, thereby ensuring the consistency of the color fixing efficiency on both sides.

[0032] The dye liquor in the drying material will move back and forth within a fixed range under the rotation of the rotating frame 2, avoiding the situation where the dye liquor will only migrate in one direction under its own gravity, thus ensuring the uniformity of dyeing of the fabric. By controlling the rotation speed of the rotating frame 2, the value of the fixed range can be reduced, thereby reducing the range of dye liquor migration in the drying material. In addition, in this embodiment, the air outlet of the hot air circulation is located at the bottom of the box 1, and the air inlet is located at the top. Firstly, this ensures that the flow of hot air is not directly blown to both sides of the fabric, which can eliminate the phenomenon of circumferential migration of dye liquor caused by direct hot air blowing on the fabric. Secondly, the hot air blows from bottom to top, which hinders the vertical migration of dye liquor, further ensuring the uniformity of dyeing of the fabric.

[0033] In addition, in other embodiments of the present invention, the air inlet can also be set at the bottom of the box 1, the air outlet is set on the rear wall of the box 1, a fan is set at the air outlet, a perforated plate is set at the bottom of the box 1, the perforated plate is provided with several through holes, the heating wire (or heating tube) is laid inside the perforated plate to heat the air inlet, and the through holes on the perforated plate are opened near the end of the box door of the box 1. The hot air passes through the perforated plate, floats up, passes through the rotating frame 2, and is finally drawn out by the fan, forming a circulating hot air flow in the drying chamber; wherein, the perforated plate plays the role of uniform air direction, while preventing the hot air from blowing directly onto the dyed fabric.

[0034] In this embodiment, the tensioning mechanism 4 includes a limiting frame 8 detachably mounted on the rotating frame 2, a double-rotating screw 11 rotatably connected to the limiting frame 8, two movable seats threadedly connected to threaded sections of the double-rotating screw 11 with different rotation directions, a pad fixed to the movable seats, and a fixing plate 9 mounted on the pad. The fixing pins 12 in the fixing plate 9 are inserted into the ends of the drying material. When tensioning, it is only necessary to insert the two ends of the dyed fabric into the fixing pins 12, and then rotate the double-rotating screw 11 to achieve tensioning of the dyed fabric. In addition, one tensioning mechanism 4 can tension multiple pieces of dyed fabric, thereby improving efficiency. The rotating frame 2 includes a rotating frame rotatably connected to the inside of the housing 1. The rotating frame is provided with several mounting slots 5. The limiting frame 8 slides into the mounting slots 5. The rotating frame is threadedly connected to a limiting bolt 6. The limiting frame 8 is controlled by the limiting bolt 6. The limiting frame 8 is fixed to the mounting groove 5, thereby making it detachable and facilitating the loading and unloading of the dyed fabric in the box 1. The limiting frame 8 is provided with a handle 14 for easy handling. In other embodiments, the end of the limiting bolt 6 abuts against the side of the triangular boss 13 of the limiting frame 8. By tightening the limiting bolt 6, the limiting frame 8 can be pressed tightly, thereby ensuring the stability of the rotation of the limiting frame 8. The limiting frame 8 is equipped with a guide post 10 inside, and a sleeve that slides and connects to the guide post 10 is fixed to the bottom of the pad, ensuring the stable tension of the dyed fabric. Optionally, the limiting bolt 6 can be replaced by an elastic positioning bead, which is tightened and fixed to the rotating frame during pre-installation. After the limiting frame 8 is fully inserted into the rotating frame 2, the spring in the elastic positioning bead returns to its original position and abuts against the triangular boss 13, thereby tightening the limiting frame 8.

[0035] In this embodiment, a fixing groove 3 is fixedly connected to the side wall of the housing 1. A fixing block is adjustablely installed inside the fixing groove 3. The end of the rotating frame is rotatably connected to the fixing block. The end of the rotating frame away from the fixing groove 3 is rotatably connected to the adjusting frame 7. The housing 1 has an installation cavity and a drying cavity 16 inside. The rotating frame is located inside the drying cavity 16. The adjusting frame 7 is adjustablely installed at the bottom of the installation cavity. The adjustable installation can be done using common bolt and nut installation, which facilitates the adjustment of the drying box. The installation cavity and the drying cavity 16 are separated by an isolation plate. The rotating rod of the rotating frame passes through the isolation plate and is connected to the output end of the motor 15, thereby realizing the rotation of the rotating frame. The isolation plate is provided with a heat insulation layer to prevent the heat of the hot air from affecting the motor 15. The installation cavity is provided with heat dissipation holes to facilitate the heat dissipation of the motor 15.

[0036] Example 2: The difference from Example 1 is that in this example, the bottom of the box 1 is provided with several air inlets aligned with the limiting frame 8, and the top of the box 1 is provided with several air outlets aligned with the limiting frame 8. A hot air flow zone is formed between an air inlet and an air outlet at each end of a limiting frame 8. The drying material is located inside the hot air flow zone. The box 1 has several hot air flow zones, and each piece of drying material is located in one hot air flow zone. This ensures the concentration of heat, accelerates the heat exchange rate between the dyed fabric and the hot air, and thus improves the drying efficiency. Furthermore, compared to traditional air inlets, dividing the air inlet into several sections can effectively reduce the situation where the dyed fabric near the air inlet dries faster due to having only one air inlet. Both the limiting frame 8 and the mounting groove 5 are provided with several aligned air passage slots or air passage holes. The hot air generated in the hot air circulation can pass through the air passage slots or air passage holes, reducing the damping vertically upward from the air outlet and reducing the interference between adjacent hot air flow areas. The rotating frame is provided with partitions, and the tensioning mechanism 4 is located between two partitions, with one hot air flow area located between two partitions.

[0037] Since the moisture content of each piece of dyed fabric may vary, or the size of the fabric may differ, or the degree of heat exchange with hot air may vary during the drying process, all of these situations can lead to some fabrics drying too quickly and others drying too slowly. Therefore, in this embodiment, the housing 1 is also equipped with a control module for controlling the air intake of each air inlet. Several gravity sensors are provided between the limiting frame 8 and the mounting groove 5 to periodically measure the weight G1 to Gn of each tensioning mechanism 4. Let the standard weight of the tensioning mechanism 4 when it is not holding the drying material be G0, and let the standard air intake of each air inlet be Q0. The control module calculates the periodic air intake Qi of each air inlet based on G1 to Gn, G0, and Q0. This allows for control of the air intake volume at each air inlet. The air inlet aligned with the heavier dyed fabric receives a larger air intake, and vice versa. For example, when the weight percentages of dyed fabrics labeled 1 to 4 are 1 / 2, 1 / 4, 1 / 8, and 1 / 8 respectively, the control module will control the air intake volumes of the air inlets aligned with the dyed fabrics labeled 1 to 4 to be 2Q0, Q0, Q0 / 2, and Q0 / 2 respectively. This ensures that the drying efficiency of each piece of dyed fabric is consistent, thus achieving synchronous drying of the dyed fabrics. In addition, the limiting bolt 6 is provided with an optical axis section, which is tangent to the side wall of the limiting frame 8, thereby restricting the limiting frame 8 from sliding out of the mounting groove 5. This ensures that while limiting the limiting frame 8, the limiting bolt 6 prevents the gravity sensor from affecting the weighing of the limiting frame 8.

[0038] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "upper," "lower," "left," "right," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A drying oven for dyeing, characterized in that: The device includes a housing (1) with a hot air circulation system and a rotating frame (2) installed inside the housing (1) with a horizontal rotation axis. The rotating frame (2) is equipped with several tensioning mechanisms (4) for clamping the drying material. There is an air gap between adjacent tensioning mechanisms (4). The two sides of the drying material are perpendicular to the rotation axis of the rotating frame (2). The hot air circulation system includes several air outlets and several air inlets. The air inlets are located at the bottom of the housing (1) and aligned with the tensioning mechanisms (4). The air outlets are located at the top of the housing (1) and aligned with the tensioning mechanisms (4), and are located at one of the tensioning mechanisms (4). A hot air flow zone is formed between one of the air inlets and one of the air outlets at both ends. The drying material is located inside the hot air flow zone. The box body (1) is provided with several hot air flow zones. The tensioning mechanism (4) includes a limiting frame (8) detachably installed on the rotating frame (2), a double-rotating screw (11) rotatably connected to the limiting frame (8), two movable seats threadedly connected to the threaded sections of the double-rotating screw (11) with different rotation directions, a pad fixed to the movable seats, and a fixing plate (9) installed on the pad. The fixing pin (12) in the fixing plate (9) is inserted into the end of the drying material. The rotating frame (2) includes a rotating frame rotatably connected inside the box (1). The rotating frame is provided with a plurality of mounting slots (5). The limiting frame (8) slides into the mounting slots (5). The rotating frame is threadedly connected with a limiting bolt (6). The limiting frame (8) is fixed on the mounting slot (5) under the action of the limiting bolt (6). The side wall of the box (1) is fixedly connected to a fixing groove (3), and a fixing block is adjustablely installed inside the fixing groove (3). The end of the rotating frame is rotatably connected to the fixing block, and the end of the rotating frame away from the fixing groove (3) is rotatably connected to the adjusting frame (7). The box (1) is provided with an installation cavity and a drying cavity (16). The adjusting frame (7) is adjustablely installed at the bottom of the installation cavity, and the rotating frame is located inside the drying cavity (16). The housing (1) is also equipped with a control module for controlling the air intake volume of each air inlet. Several gravity sensors are provided between the limiting frame (8) and the mounting groove (5) to periodically measure the weight G1 to Gn of each tensioning mechanism (4). Let the standard weight of the tensioning mechanism (4) when the drying material is not clamped be G0, and let the standard air intake volume of each air inlet be Q0. The control module calculates the periodic air intake volume Qi of each air inlet based on G1 to Gn, G0 and Q0. .

2. The drying oven for dyeing according to claim 1, characterized in that: Both the limiting frame (8) and the mounting groove (5) are provided with several aligned air passage grooves or air passage holes, and the hot air generated in the hot air circulation can pass through the air passage grooves or air passage holes.

3. The drying oven for dyeing according to claim 1, characterized in that: The rotating frame is provided with partitions, the tensioning mechanism (4) is located between the two partitions, and a hot air flow area is located between the two partitions.

4. The drying oven for dyeing according to claim 1, characterized in that: The limiting bolt (6) is provided with an optical axis segment, which is tangent to the side wall of the limiting frame (8) to restrict the limiting frame (8) from sliding out of the mounting groove (5).

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