hot box of a texturing machine

Abstract

The application discloses a hot box of an elasticizer, comprising a hot rail for heating a wire, heat insulation materials attached to both sides of the hot rail, a box cover coated on the heat insulation materials and the box body, and a sealing door above the hot rail, the sealing door is connected with the box seat or the box cover through a lifting mechanism at both ends, and the inner surface of the sealing door close to the hot rail is provided with a sealing strip, when the sealing door is closed, the sealing strip is attached to the heat insulation materials or the box cover at both sides, and a heat preservation cavity is formed outside the heating surface of the hot rail. The lifting mechanism is adopted to avoid damage to the sealing strip during opening and closing, the sealing strip is arranged to reduce the cavity volume above the hot rail, heat loss is reduced, and the structure is simple and the modification to the existing hot box is small.

Description

Technical Field

[0001] This invention relates to a heating device for a texturing machine, and more particularly to a texturing machine heating box. Background Technology

[0002] In the texturing spinning process of chemical fiber filaments, a heating box heats and plasticizes the filament bundle, causing it to undergo permanent crimping deformation in a false-twist state. The heating box includes an outer shell, a heating track, and a sealing door. The upper surface of the heating track is arc-shaped, higher in the middle and lower at both ends. The sealing door is connected to the shell by hinges, and a handle is installed at the lower end of the sealing door. During spinning operations, the operator opens the sealing door using the handle to perform the spinning operation. For example, CN 121344836 A discloses a texturing heating box and a false-twist texturing machine, and CN 120273075 A discloses an openable, heat-insulated, leak-proof heating box door installation structure for a texturing machine.

[0003] The existing heating box structure has the following problems: During the spinning operation, the heating track temperature has reached the glass transition temperature required for the yarn (e.g., 170~190℃). When the sealed door is opened and rotated to one side of the heating track, the heating track is completely exposed to the air, and heat radiates in all directions, resulting in significant energy loss and consumption. Furthermore, the sealed door is hinged, and because it is close to the inner side of the heating track, it is impossible to install a sealing structure 6 that can extend into the heating track mounting groove 7. This is because the shell or insulation material on both sides of the heating track will interfere with the movement trajectory of the sealed door during the opening and closing process. Figure 1 As shown in the diagram. In this case, the distance between the sealing door and the heating track increases significantly. During the spinning process, the continuous transport of the yarn drives the airflow inside the heating track, causing the hot air to flow upward continuously, resulting in heat loss.

[0004] CN 210657303 U discloses an energy-saving hot box, in which a connecting block is installed on the inner side of the hot box door shell, and a reflective film is provided on the side of the connecting block facing the hot rail. The reflective film fits the shape of the hot rail. This solution can avoid motion interference during the opening and closing process by reducing the width of the connecting block, but the heat insulation effect will also decrease. Summary of the Invention

[0005] Purpose of the invention: The purpose of this invention is to provide a texturing machine hot box that can avoid interference during the switching process and reduce energy consumption.

[0006] Technical solution: The texturing machine heating box of the present invention includes a heating rail for heating the wire, heat insulation material attached to both sides of the heating rail, a box cover covering the heat insulation material and the box body, and a sealing door above the heating rail. The two ends of the sealing door are connected to the box base or the box cover through a lifting mechanism. A sealing strip is provided on the inner surface of the sealing door near the heating rail. When the sealing door is closed, the two sides of the sealing strip are attached to the heat insulation material or the box cover, forming a heat insulation cavity outside the heating surface of the heating rail.

[0007] Preferably, the lower surface of the sealing strip near the hot rail has the same contour as the heating surface of the hot rail.

[0008] Preferably, the lifting mechanism includes a cylinder, which is mounted on the housing, and the two ends of the sealing door are connected to the connecting rod of the cylinder.

[0009] Preferably, the connecting rod is located on the centerline of the hot rail, and the diameter or width of the connecting rod is less than 10 mm.

[0010] Preferably, the housing and the sealing door are each provided with a guide rod to guide the wire bundle into the hot rail.

[0011] Preferably, the sealing strip is T-shaped, with the upper surface of the sealing strip, which has a relatively larger width, connected to the sealing door, and the lower surface, which has a relatively smaller width, extending into the space between the heat insulation materials.

[0012] Preferably, the inner side of the thermal insulation material is provided with stepped structures for supporting and fitting the left and right shoulders of the sealing strip. The upper surface contour of the stepped structure is consistent with the lower surface contour of the sealing strip.

[0013] Preferably, to prevent heat from being conducted through the fixed panel of the enclosure, when the sealed door is closed, the lowest point of the enclosure covered with heat insulation material is higher than the inner surface of the sealed door.

[0014] Preferably, in order to accommodate the relatively short insulation material and to prevent heat from being conducted through the fixed panel of the housing, symmetrical shielding blocks are provided on the inner wall of the insulation material. The sealing strip, shielding blocks and insulation material are spliced ​​together to form an insulation cavity at the top of the heat rail.

[0015] Preferably, the thickness of the shielding block is not less than the thickness of the housing shell.

[0016] Preferably, the shielding block has an L-shaped cross-section, the thickness of the vertical side arm of the shielding block is not less than the thickness of the housing shell, and the bottom side arm of the shielding block is attached to the lower surface of the sealing strip.

[0017] Preferably, the sealing strip is made of a non-metallic insulating high-temperature resistant material.

[0018] Preferably, the cylinder is a rotary clamping cylinder to facilitate cleaning of the hot box.

[0019] Preferably, the two ends of the hot rail are connected to a liquid-holding pipe and a condenser pipe, respectively, and the liquid-holding pipe is equipped with a heating rod and a platinum resistance thermometer for monitoring temperature.

[0020] Beneficial effects: Compared with the prior art, the present invention has the following advantages: 1. Avoids interference during the switching process and reduces energy consumption: The lifting mechanism avoids damage to the sealing strip during the switching process, and the volume of the cavity above the hot rail is reduced by setting the sealing strip, thereby reducing heat loss; 2. Compatible with different types of heat insulation materials, avoiding increased energy consumption caused by heat conduction from the box shell; 3. Simple structure and minimal modification to existing hot boxes. Attached Figure Description

[0021] Figure 1 A schematic diagram of the open and closed states of a hot box in existing technology;

[0022] Figure 2 This is a cross-sectional view of the hot box structure of the present invention;

[0023] Figure 3 for Figure 2 A schematic diagram of the structure along direction A and a schematic diagram of the structure with the enclosure removed along direction A;

[0024] Figure 4 A schematic diagram of the lifting mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the sealing strip structure according to the first embodiment of the present invention. Figure 1 In direction A;

[0026] Figure 6 This is a schematic diagram of the sealing strip structure according to the second embodiment of the present invention. Figure 1 In direction A. Detailed Implementation

[0027] The technical solution of the present invention will now be described in detail with reference to the accompanying drawings.

[0028] Example 1: As Figures 2 to 6 The texturing machine's heating chamber mainly consists of a heating assembly 1, a sealing door 2, heat insulation material 3, a chamber cover 4, and a guide rod assembly, such as... Figure 2 The upper surface of the heating component 1 has two concave guide rails. The bottom edge of the guide rail is the heating surface, which is arc-shaped. Several heating rails 12 are arranged in parallel inside the box. Each heating rail 12 is wrapped with heat insulation material 3 on both sides. The box and the heat insulation material 3 are covered with a box shell 4.

[0029] The sealing door 2 is positioned parallel to and corresponding to the heating rail 12. It is opened during spinning operations and closed after operations to maintain the temperature of the heating surface. The heating box is generally placed at an angle or vertically. Figure 2 The left and right ends are the top and bottom ends in actual use. For example... Figure 2 , 3As shown, the sealed door 2 is connected to the base or housing 4 at both ends via a lifting mechanism. A sealing strip 5 is installed on the inner surface of the sealed door 2 near the heating rail 12. The lower surface contour of the sealing strip 5 is consistent with the contour of the heating surface of the heating rail 12, parallel to each other, and also arc-shaped. This invention replaces the rotation opening method of the sealed door 2 with a lifting method, reducing the opening range of the sealed door 2 during the opening process, reducing heat loss, and at the same time removing the restriction of the heat insulation material 3 or the base on the sealing strip 5, avoiding interference during the opening and closing process. After the sealed door 2 is closed, the lower surface of the sealing strip 5 can be close to the heating rail 12. The sealing strip 5 and the heat insulation material 3 cooperate to form a heat-insulating cavity around the heating surface of the heating rail 12. The sealing strip 5 is a non-metallic insulating high-temperature resistant material.

[0030] The lifting mechanism is a cylinder 21, which is mounted on the housing 4 below the hot rail 12. Figure 2 Along its length, the upper and lower ends of the sealing door 2 are connected to the connecting rod 23 of the cylinder 21. The cylinder 21 can be a rotary clamping cylinder. The connecting rod 23 is located in the middle of the two guide rails on the heating surface of the hot rail 12. In other words, the connecting rod 23 is located on the centerline of the hot rail 12. The diameter or width of the connecting rod 23 is less than 10mm to avoid affecting the lifting head operation.

[0031] like Figure 4 The sealing door 2 can be provided with L-shaped bending structures on both sides or with reinforcing ribs on the upper surface of the sealing door 2 to prevent deformation during the lifting and lowering process of the sealing door 2. It is better to provide bending structures on both sides, which is convenient for improvement on the basis of the existing device: to improve the strength of the sealing door 2 in the length direction, and at the same time leave installation space for the sealing strip 5.

[0032] like Figure 4 As shown, the sealing strip 5 has a T-shaped structure. The relatively wider upper surface 55 is connected to the inner surface of the sealing door 2 by fasteners, while the relatively narrower bottom surface 57 extends into the space between the insulation materials 3, forming an insulation cavity with the insulation materials 3. A stepped structure can be provided on the inner side of the insulation material 3 to support and fit the left and right shoulders 56 of the sealing strip 5. The upper surface contour of the stepped structure is consistent with the lower surface contour of the sealing strip 5, and is arc-shaped.

[0033] In the vertical direction, when the sealing door 2 is closed, the lowest point of the edge of the box cover 4 wrapped with heat insulation material 3 is higher than the highest point of the sealing strip 5, so as to prevent the box cover 4 from contacting the hot air inside the heat insulation cavity and to prevent heat from being conducted through the fixed panel of the box cover 4.

[0034] like Figure 2The heating assembly 1 includes a heating rail 12, a liquid-holding pipe 11, and a condenser pipe 13. Six sets of heating rails 12 are arranged in parallel inside the chamber, with their ends connected to the liquid-holding pipe 11 and the condenser pipe 13, respectively. The condenser pipe 13 is used for steam condensation and reflux. A heating rod 14 is installed inside the liquid-holding pipe 11 to heat the liquid inside. The temperature is controlled and displayed by a platinum resistance thermometer. Guide rods 41, 42, and 25 are respectively installed on the chamber cover 4 and the sealing door 2. During the start-up operation, the cylinder 21 control button is activated, the sealing door 2 is pushed open, and the guide rods 41 and 25 or 42 and 25 guide the wire bundle to move along the heating rail 12.

[0035] Example 2: The end of the casing 4 is bent to assist in fixing the heat insulation material 3. The height of the heat insulation material 3 will be adjusted according to the working conditions. When the top height of the heat insulation material 3 is higher than the inner side of the sealing door 2, the bending length of the casing 4 can be shortened to prevent heat from being conducted through the fixed panel of the casing 4. However, when the height of the heat insulation material 3 is lower than the inner side of the sealing door 2, this method cannot be used to adjust it. To solve this problem, based on Example 1, this example has the following modifications:

[0036] like Figure 5 As shown, symmetrical shielding blocks 31 are provided on the inner wall of the insulation material 3. The sealing strip 5, shielding blocks 31, and insulation material 3 are spliced ​​together to form an insulation cavity outside the heating surface of the heat rail 12. The thickness of the shielding block 31 is not less than the thickness of the housing shell 4. The cross-section of the shielding block 31 can be L-shaped, and the bottom side arm of the shielding block 31 is attached to the lower surface of the sealing strip 5. The outline of the shielding block 31 is consistent with the outline of the sealing strip 5.

Claims

1. A texturing machine heating box, comprising a heating rail (12) for heating wires, heat insulation material (3) adhering to both sides of the heating rail (12), a box shell (4) covering the heat insulation material and the box body, and a plurality of sealing doors (2) above the heating rail (12), characterized in that, The sealing door (2) is connected to the box base or box cover (4) at both ends by a lifting mechanism. The inner surface of the sealing door (2) near the hot rail (12) is provided with a sealing strip (5). When the sealing door (2) is closed, the sealing strip (5) and the heat insulation material (3) or box cover (4) are attached to each other, forming a heat insulation cavity outside the heating surface of the hot rail (12).

2. In the texturing machine hot box according to claim 1, the lower surface contour of the sealing strip (5) near the hot rail (12) is consistent with the contour of the heating surface of the hot rail (12).

3. The texturing machine heating box according to claim 1, characterized in that, The lifting mechanism includes a cylinder (21), which is connected to the housing (4), and the connecting rod (23) of the cylinder (21) is connected to both ends of the sealing door (2).

4. The texturing machine heating box according to claim 3, characterized in that, The connecting rod (23) is located on the center line of the hot rail (12), and the diameter or width of the connecting rod (23) is less than 10 mm.

5. The texturing machine heating box according to claim 1, characterized in that, The sealing strip (5) is T-shaped. The upper surface (55) of the sealing strip (5) with a relatively large width is connected to the sealing door (2), and the bottom (57) with a relatively small width extends into the space between the heat insulation materials (3).

6. The texturing machine heating box according to claim 5, characterized in that, The inner side of the heat insulation material (3) is provided with a stepped structure for supporting and fitting the left and right shoulders (56) of the sealing strip (5).

7. The texturing machine heating box according to claim 5 or 6, characterized in that, When the sealed door (2) is closed, the lowest point of the box shell (4) covered with heat insulation material is higher than the inner surface of the sealed door (2).

8. The texturing machine heating box according to claim 1, characterized in that, The inner wall of the heat insulation material (3) is symmetrically provided with shielding blocks (31). The sealing strip (5), shielding blocks (31) and heat insulation material (3) are spliced ​​together to form a heat insulation cavity outside the heating surface of the heat rail (12).

9. The texturing machine heating box according to claim 8, characterized in that, The shielding block (31) has an L-shaped cross section. The thickness of the vertical side arm of the shielding block (31) is not less than the thickness of the box cover (4). The bottom side arm of the shielding block (31) is attached to the lower surface of the sealing strip (5).

10. The texturing machine heating box according to claim 3, characterized in that, The cylinder is a rotary clamping cylinder.

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