A negative pressure finishing singeing device for cloth

Abstract

The invention discloses a negative pressure finishing singeing device for fabric, and relates to the technical field of textile processing. The negative pressure finishing singeing device for fabric comprises a support frame, and also comprises an inner core, wherein the inner core is fixed in the support frame, and a singeing channel is provided inside the inner core, and the singeing channel passes through the center of the inner core; and a heating metal plate, wherein the heating metal plate is arranged inside the singeing channel near the two ends, and the two heating metal plates are centrally symmetrical about the center of the inner core. The two heating metal plates inside the singeing channel are used to stagger the double sides of the fabric to avoid the phenomenon of burning through in the fabric area caused by the simultaneous singeing area, and the opposite side of the fabric singeing area is always against the cold air pipe by the arrangement of the cold air pipe and the cold air output hole, so that the fabric is cooled synchronously to avoid damage to the fabric.

Description

Technical Field

[0001] The invention relates to the technical field of textile processing, in particular to a negative pressure finishing singeing device for cloth. Background Art

[0002] Singeing refers to the process of quickly passing yarn or fabric through flame or rubbing it on a hot metal surface to burn off the surface hair. The textile processing of fibers will produce a lot of hair on the surface of yarn and fabric, which will affect the dyeing and finishing process and cause the dyeing quality to decline. According to the requirements of the product, some yarns (such as silk) and most fabrics must go through the singeing process to make the surface smooth and flat with clear texture. The flame temperature of singeing is usually 900-1000℃, and the surface temperature of the hot metal plate is also 800℃, which are higher than the decomposition temperature or ignition point of various fibers. During singeing, the yarn or fabric passes through the flame at high speed under a certain tension. Since the hair on the protruding surface has a relatively large heating area, it instantly heats up to the ignition point and burns. However, the yarn and fabric bodies are tightly twisted and interwoven, so the heating speed is not so rapid, so they are rarely affected. In the process of singeing of finished cloth, it is often necessary to pass through the singeing device many times so that both sides of the cloth can achieve a smooth and flat effect under the action of the singeing device, thereby improving the dyeing effect. However, this singeing device is often complex in structure and large in size, which is not conducive to manufacturers' promotion and use.

[0003] The Chinese patent with publication number CN107217434B discloses a singeing and calendering device, which can compress the distance between two sets of arc-shaped heating metal plates through a cylinder to avoid the situation where the distance is too small and the textiles are burned. The position between the guide rollers can be adjusted according to the distance between the two sets of arc-shaped heating metal plates to achieve the best and fastest feeding speed.

[0004] In the Chinese patent with publication number CN112176616B, a singeing device and singeing method applied to textiles are disclosed. The device changes the connection state of the cold air slot, the hot air slot and the singeing port through the rotation of the base body by the cold and hot alternating mechanism, so that the upper surface and the lower surface of the fabric are alternately subjected to high-temperature singeing and low-temperature cooling treatment at the same time, that is, when the upper singeing port singes the upper surface of the fabric, the lower singeing port cools the lower surface of the fabric, and when the lower singeing port singes the upper surface of the fabric, the upper singeing port cools the lower surface of the fabric. Therefore, during the singeing treatment, the problem of scalding damage to the surface of the fabric caused by excessive heat source in the hot air slot or when the surface of the fabric is close to the high-temperature heat source can be greatly reduced.

[0005] However, although the traditional double-sided synchronous singeing device for fabric can achieve the singeing effect, due to the thin thickness of the fabric, the temperature of the fabric in the area rises quickly when the double-sided synchronous singeing is performed. Although some equipment on the market cools the fabric by alternating between hot and cold, this can only play a cooling and fire extinguishing role. There is still a problem of burn-through in the double-sided singeing area of ​​the fabric, which causes damage to the fabric, and in severe cases, even causes a fire in the factory. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a negative pressure finishing singeing device for cloth, which solves the problems raised in the background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a negative pressure finishing singeing device for fabrics, comprising a support frame and an inner core, wherein the inner core is fixed in the support frame, and a singeing channel is provided inside the inner core, and the singeing channel passes through the center of the inner core; a heating metal plate, wherein the heating metal plate is arranged inside the singeing channel near the two ends, and the two heating metal plates are centrally symmetrical about the center of the inner core; a movable groove, wherein the movable groove is respectively arranged on the inner side walls of the singeing channel, and the movable groove is opposite to the heating metal plate, and a cold air pipe is movably installed inside the movable groove, and cold air output holes are evenly provided on the cold air pipe; a heat recovery component, wherein the heat recovery component is arranged on the outer side of the inner core, and the heat recovery component comprises an insulation cylinder fixed on the outer side of the inner core, and a hot water absorbing pipe is installed in the gap between the inner wall of the insulation cylinder and the outer wall of the inner core.

[0008] Furthermore, it also includes an adjustment component, which is arranged at both ends of the inner core to adjust the distance from the cold air pipe to the heating metal plate, and the adjustment component includes a transmission cavity, which is arranged at both ends of the inner core, and both ends of the cold air pipe extend into the transmission cavity and are installed with guide rings, and a guide rod is installed inside the transmission cavity along the direction from the cold air pipe to the relative heating metal plate, and the guide rod is slidably connected with the guide ring; a fixed column, which is fixed at the center position of one of the transmission cavities; a smoking pipe, which is installed at the center position of another transmission cavity; a swivel is rotatably installed on the outside of the smoking pipe and the fixed column, and the gaps between the two swivels and the smoking pipe and the fixed column are respectively installed with spring springs, and a pressure plate that is against the outer surface of the cold air pipe is provided on the outside of the swivel, and the two pressure plates on the same side are centrally symmetrical with the center of the swivel.

[0009] Furthermore, a notch groove is provided on the pressure plate, the shortest inner diameter of the notch groove is larger than the outer diameter of the guide rod, and the shortest inner diameter of the notch groove is smaller than the outer diameter of the guide ring.

[0010] Furthermore, both ends of the inner core pass through the support frame, and a through groove is opened on the outer side of the inner core at the position of the transmission cavity, a push rod is arranged in the through groove, and one end of the push rod is fixedly connected to the swivel.

[0011] Further, one end of the smoking pipe is communicated with the singeing channel, a smoke exhaust fan is installed at one end of the inner core, and the input end of the smoke exhaust fan is communicated with the other end of the smoking pipe.

[0012] Further, there are two groups of hot water suction pipes, and the two groups of hot water suction pipes are symmetrical with respect to the singeing channel, and the projection of the hot water suction pipes in the plane is in a "Z" - shaped structure; one end of the two hot water suction pipes is provided with a cold water input pipe, and the other end of the two hot water suction pipes is provided with a hot water output pipe, and both the cold water input pipe and the hot water output pipe are three - way pipes.

[0013] Further, a singeing inlet is opened at one end of the outside of the heat preservation cylinder where the singeing channel is located, and a singeing outlet is opened at the other end of the outside of the heat preservation cylinder where the singeing channel is located.

[0014] Further, upper brackets are symmetrically installed inside the support frame at the upper end of the heat preservation cylinder, and lower brackets are symmetrically installed inside the support frame at the lower end of the heat preservation cylinder. Both the upper brackets and the lower brackets are in a "U" - shaped structure; a first guiding roller is symmetrically and rotatably installed between the two upper brackets, and a second guiding roller is symmetrically and rotatably installed between the two lower brackets; an electrostatic generator is installed between the two first guiding rollers, and the electrostatic generator imparts static electricity to the fabric to make the fluff on the fabric stand up.

[0015] Further, a negative pressure box is installed between the two second guiding rollers. A finishing channel is opened in the middle of the negative pressure box, and negative pressure cavities are provided at both the upper and lower ends of the finishing channel inside the negative pressure box. Adsorption grooves are provided between the negative pressure cavities and the finishing channel; a negative pressure pump is fixed at the bottom inside the support frame, and the negative pressure pump is connected to the negative pressure cavity through a pipeline.

[0016] Further, a refrigerant input pipe is provided on one of the rotating rings, and a flexible pipe is provided between the refrigerant input pipe and the two cold air pipes.

[0017] The present invention has the following beneficial effects:

[0018] (1) For the fabric negative pressure finishing and singeing device, the two heating metal plates inside the singeing channel perform offset singeing on both sides of the fabric to avoid the phenomenon of burning through in the fabric area caused by synchronous singeing in the singeing area. Through the setting of the cold air pipes and the cold air output holes, the opposite side of the fabric singeing area is always in contact with the cold air pipes, so as to synchronously cool the fabric and avoid damaging the fabric.

[0019] (2) For the fabric negative pressure finishing and singeing device, by setting the heat preservation cylinder and the hot water suction pipes, the heat energy radiated by the inner core is absorbed by the medium inside the hot water suction pipes, thereby realizing the recovery of heat energy, avoiding waste of resources caused by heat energy loss, and the heat preservation cylinder can also insulate the inner core to avoid scalding caused by accidental contact during the operation of workers, improving the safety during the use of the equipment.

[0020] (3) The negative pressure finishing singeing device for fabric uses the elastic force in the clockwork spring to rotate the rotating ring, thereby driving the pressure plate to move, and the pressure plate pushes the guide ring to slide on the guide rod, so that the cold air pipe moves inside the movable groove, and then the cold air pipe is always pressed on the opposite side of the fabric singeing area, so as to achieve the purpose of cooling the fabric while singeing it, thereby avoiding the fabric from being burned and improving the safety of the fabric during singeing.

[0021] (4) The negative pressure finishing singeing device for fabrics uses a smoke exhaust fan and a smoke pipe to extract the smoke generated during singeing to avoid excessive smoke accumulation inside the singeing channel and fumigating the fabric, thereby preventing the fabric from generating excessive odor and improving the singeing quality of the fabric.

[0022] (5) The negative pressure finishing singeing device for fabrics, by means of the setting of an electrostatic generator, allows static charges to be attached to the surface of the fabric. The force generated by static electricity allows the fibers and hairs on the surface of the fabric to stand up evenly, thereby improving the singeing effect, avoiding the occurrence of uneven singeing, and effectively improving the flatness and finish after singeing. By means of the setting of a negative pressure pump, a negative pressure chamber, and an adsorption tank, both sides of the fabric passing through the finishing channel are subjected to adsorption treatment, thereby facilitating the absorption of singeing debris remaining on the surface of the fabric, thereby improving the finish of the fabric.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0026] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 4 For the present invention Figure 2 The main view;

[0028] Figure 5 It is a schematic diagram of the installation structure of the heat preservation cylinder in the present invention;

[0029] Figure 6 It is a schematic diagram of the installation structure of the inner core in the present invention;

[0030] Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure at B in the middle;

[0031] Figure 8 Schematic diagram of the internal structure of the inner core in the present invention;

[0032] Fig. 9 For the present invention Figure 8 A top view of

[0033] Fig.10 It is a schematic structural diagram of the hot water absorbing pipe in the present invention;

[0034] Fig.11 It is a schematic diagram of the structure of the regulating component in the present invention.

[0035] In the figure, 1, support frame; 2, upper bracket; 3, electrostatic generator; 4, first guide roller; 5, lower bracket; 6, second guide roller; 7, negative pressure box; 8, sorting channel; 9, negative pressure pump; 10, insulation cylinder; 11, inner core; 12, singeing inlet; 13, cold water input pipe; 14, hot water output pipe; 15, push rod; 16, negative pressure chamber; 17, adsorption groove; 18, hot water absorption pipe; 19, singeing outlet; 20, singeing channel; 21, heating metal plate; 22, movable groove; 23, cold air pipe; 24, smoking pipe; 25, exhaust fan; 26, through groove; 27, refrigerant input pipe; 28, fixed column; 29, guide rod; 30, swivel; 31, spring; 32, guide ring; 33, pressure plate; 34, notch groove; 35, transmission chamber. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] See also Figure 1-Figure 11, an embodiment of the present invention provides a technical solution: a fabric negative pressure finishing and singeing device, including a support frame 1. Preferably, the support frame 1 is in a "U" - shaped structure. It also includes an inner core 11. The inner core 11 is fixed inside the support frame 1, and a singeing channel 20 is opened inside the inner core 11. The singeing channel 20 passes through the center of the inner core 11, so that the length of the singeing channel 20 is the same as the diameter of the inner core 11, thus providing sufficient passing time for double - sided singeing. In addition, it avoids abrasion between the fabric and the opening of the singeing channel 20 when the fabric passes through the singeing channel 20. Preferably, both ends of the singeing channel 20 are provided with rounded corners to avoid scratching the fabric at the two ends of the singeing channel 20.

[0039] To achieve double - sided singeing of the fabric, the fabric negative pressure finishing and singeing device provided in this embodiment further includes a heating metal plate 21. Preferably, the maximum temperature of the heating metal plate 21 can be raised to 800 °C. The heating metal plate 21 can be a copper plate heating method with an internal combustion chamber or an electric heating method. The former has less energy consumption but a large volume and is not easy to control the temperature. The latter has high energy consumption, a small volume, and is easy to control the temperature. In addition, the heating metal plate 21 is arranged at positions near both ends inside the singeing channel 20, and the two heating metal plates 21 are centrosymmetric about the center of the inner core 11, which is beneficial to double - sided misaligned singeing of the fabric to avoid burn - through phenomena in the fabric area caused by synchronous singeing areas. In addition, preferably, heat - insulating fillers are arranged at the connection between the inside of the inner core 11 and the heating metal plate 21 to reduce the heat radiation of the heating metal plate 21, thereby reducing heat energy loss.

[0040] To prevent the fabric from being burned during singeing, the fabric negative pressure finishing and singeing device provided in this embodiment further includes movable grooves 22. The movable grooves 22 are respectively arranged on both inner side walls of the singeing channel 20 and are opposite to the heating metal plate 21. A cold air pipe 23 is movably installed inside the movable grooves 22, and cold air output holes are evenly opened on the cold air pipe 23. Through the settings of the cold air pipe 23 and the cold air output holes, the opposite side of the fabric singeing area is always in contact with the cold air pipe 23, thereby synchronously cooling the fabric to avoid damaging the fabric during singeing.

[0041] In addition, to reduce heat energy loss, a heat recovery component is further arranged outside the inner core 11. The heat recovery component includes a heat - preservation cylinder 10 fixed outside the inner core 11. A hot - water absorption pipe 18 is installed in the gap between the inner wall of the heat - preservation cylinder 10 and the outer wall of the inner core 11. Through the setting of the heat - preservation cylinder 10, heat energy radiation to the outside is reduced, and heat insulation is carried out on the inner core 11 to avoid scalding caused by accidental contact during worker operation and improve the safety of the equipment during use. In this embodiment, preferably, the material of the hot - water absorption pipe 18 is copper pipe or aluminum alloy pipe to improve the heat conduction effect, so that the medium inside the hot - water absorption pipe 18 can better absorb the heat energy inside the heat - preservation cylinder 10 and reduce heat energy loss.

[0042] Such as Figure 5 、 Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.11 As shown, the negative pressure finishing singeing device for fabric provided in this embodiment also includes an adjusting component, which is arranged at both ends of the inner core 11 to adjust the distance from the cold air pipe 23 to the heating metal plate 21, so that the cold air pipe 23 is always against the opposite side of the fabric singeing area.

[0043] The adjustment component includes a transmission cavity 35, which is arranged at both ends of the inner core 11. Both ends of the cold air pipe 23 extend into the transmission cavity 35 and are equipped with guide rings 32. A guide rod 29 is installed inside the transmission cavity 35 along the direction from the cold air pipe 23 to the relative heating metal plate 21. The guide rod 29 is slidably connected to the guide ring 32. The cold air pipe 23 can be pulled to move through the sliding connection between the guide rod 29 and the guide ring 32.

[0044] In addition, the adjustment component also includes a fixed column 28, which is fixed at the center position of one of the transmission chambers 35; a smoking pipe 24, which is installed at the center position of another transmission chamber 35; a swivel 30 is rotatably installed on the outer side of the smoking pipe 24 and the fixed column 28, and a spring spring 31 is installed in the gap between the two swivels 30 and the smoking pipe 24 and the fixed column 28, and a pressure plate 33 is provided on the outer side of the swivel 30 to abut against the outer surface of the cold air pipe 23. It should be noted that the pressure plate 33 and the cold air pipe 23 and the guide ring 32 are not fixedly connected to facilitate relative displacement between the pressure plate 33 and the cold air pipe 23 and the guide ring 32. In addition, the two pressure plates 33 on the same side are centrally symmetrical with the center of the swivel 30 to drive the two cold air pipes 23 to move toward each other.

[0045] In this embodiment, the rotating ring 30 is rotated by the elastic force in the clockwork spring 31, thereby driving the pressure plate 33 to move, and the pressure plate 33 pushes the guide ring 32 to slide on the guide rod 29, so that the cold air pipe 23 moves inside the movable groove 22, and then the cold air pipe 23 is always pressed on the opposite side of the singed area of ​​the cloth, so as to achieve the cloth singeing and cooling the cloth at the same time, thereby avoiding the cloth from being burned and improving the safety of the cloth singeing.

[0046] like Fig.11 As shown, in order to improve the stability of the pressure plate 33 when driving the cold air pipe 23 to move, a notch groove 34 is opened on the above-mentioned pressure plate 33, and the shortest inner diameter of the notch groove 34 is larger than the outer diameter of the guide rod 29, and the shortest inner diameter of the notch groove 34 is smaller than the outer diameter of the guide ring 32. Through the cooperation between the notch groove 34 and the guide ring 32, it can be ensured that the pressure plate 33 is always located on one side of the cold air pipe 23, so that the pressure plate 33 can push the cold air pipe 23 to move.

[0047] like Figure 1 , Figure 5 , Figure 6 , Figure 7 As shown, in order to facilitate the fabric to pass through the singeing channel 20 during installation, both ends of the inner core 11 pass through the support frame 1, and a through groove 26 is provided on the outer side of the inner core 11 at the position of the transmission cavity 35, and a push rod 15 is provided in the through groove 26, and one end of the push rod 15 is fixedly connected to the rotating ring 30. The push rod 15 is manually pushed to drive the rotating ring 30 to rotate in the opposite direction, thereby further compressing the clockwork spring 31, thereby driving the pressing plate 33 to move, and the pressing plate 33 pushes the guide ring 32 to slide on the guide rod 29, so that the cold air pipe 23 moves inside the movable groove 22, and further The step makes the distance between the cold air pipe 23 and the relative heating metal plate 21 larger, which is beneficial to the installation of the cloth. After the external force on the push rod 15 is released, the clockwork spring 31 relaxes to drive the rotating ring 30 to rotate, and further drives the pressing plate 33 to move. The pressing plate 33 pushes the guide ring 32 to slide on the guide rod 29, so that the cold air pipe 23 moves inside the movable groove 22, and then the cold air pipe 23 is always pressed on the opposite side of the cloth singeing area, so as to achieve the cloth singeing and cool the cloth, thereby avoiding the cloth from being burned and improving the safety of the cloth singeing.

[0048] like Figure 4 , Figure 5 , Figure 6 , Fig. 9 and Fig.11 As shown, in order to facilitate the discharge of smoke generated by singeing inside the singeing channel 20, one end of the smoking pipe 24 is connected to the singeing channel 20. Preferably, a smoke treatment filter element is provided inside the smoking pipe 24 for purifying the smoke so that the smoke meets the emission standards. A smoke exhaust fan 25 is installed at one end of the inner core 11, and the input end of the smoke exhaust fan 25 is connected to the other end of the smoking pipe 24.

[0049] In this embodiment, the smoke generated during singeing is sucked by the smoke exhaust fan 25 and the smoke pipe 24 to prevent the smoke from accumulating too much inside the singeing channel 20 and fumigating the cloth, thereby preventing the cloth from generating too heavy odor and improving the singeing quality of the cloth.

[0050] like Figure 8-Figure 10 As shown, in order to improve the heat absorption effect of the hot water absorption pipe 18, the hot water absorption pipe 18 is arranged into two groups, the two groups of hot water absorption pipes 18 are symmetrical with the singeing channel 20, and the two groups of hot water absorption pipes 18 are arc-shaped structures, so as to be evenly arranged on the outside of the inner core 11, and the projection of the hot water absorption pipe 18 in the plane is a "Z" structure, so as to absorb the heat energy in the gap between the insulation tube 10 and the inner core 11 to the greatest extent, thereby reducing the loss of heat energy and improving the energy-saving effect of the equipment.

[0051] To facilitate the transportation of the medium inside the hot water suction pipe 18, one end of each of the two hot water suction pipes 18 is provided with a cold water input pipe 13, and the other end of each of the two hot water suction pipes 18 is provided with a hot water output pipe 14. Both the cold water input pipe 13 and the hot water output pipe 14 are three-way pipes. The two openings of the three-way pipe are respectively connected to one end of the two hot water suction pipes 18, and the other opening of the three-way pipe is used for the input and output of the medium inside the hot water suction pipe 18. Normal temperature medium is input into the hot water suction pipe 18 through the cold water input pipe 13. The hot water suction pipe 18 absorbs the heat energy in the gap between the heat preservation cylinder 10 and the inner core 11, so that the medium inside the hot water suction pipe 18 is heated, and then the high-temperature medium is output through the hot water output pipe 14, which can not only cool the inner core 11, but also store the heat energy in the medium, thus facilitating the reuse of heat energy.

[0052] As Figure 1-Figure 4 shown, to facilitate the passage of the fabric through the heat preservation cylinder 10, a singeing inlet 12 is opened at one end of the heat preservation cylinder 10 on the outer side of the singeing channel 20, and a singeing outlet 19 is opened at the other end of the heat preservation cylinder 10 on the outer side of the singeing channel 20. The fabric is input into the singeing channel 20 through the singeing inlet 12 and output through the singeing outlet 19, which is beneficial to the passage of the fabric through the inner core 11.

[0053] As Figure 1-Figure 4 shown, to facilitate the guiding of the fabric when it is input into and output from the inner core 11, upper brackets 2 are symmetrically installed above the heat preservation cylinder 10 inside the support frame 1, and lower brackets 5 are symmetrically installed below the heat preservation cylinder 10 inside the support frame 1. Both the upper brackets 2 and the lower brackets 5 are in a "U" - shaped structure; a first guiding roller 4 is symmetrically and rotatably installed between the two upper brackets 2, and a second guiding roller 6 is symmetrically and rotatably installed between the two lower brackets 5. The first guiding roller 4 is beneficial for guiding the fabric before it enters the singeing channel 20, and the second guiding roller 6 is beneficial for guiding the fabric after it is output from the singeing channel 20.

[0054] As Figure 1-Figure 4 shown, since the fibers and fuzz on the surface of the fabric are often in a randomly倒伏 state after extrusion, it will cause uneven singeing on the fabric surface or some fibers and fuzz that need to be singed off are not singed because they are close to the fabric surface, which greatly affects the physical properties and aesthetic degree of the fabric. An electrostatic generator 3 is installed between the two first guiding rollers 4. The electrostatic generator 3 imparts static electricity to the fabric to make the fuzz on the fabric stand up.

[0055] Through the setting of the electrostatic generator 3, static charges adhere to the fabric surface. Through the force generated by the static electricity, the fibers and fuzz on the fabric surface are evenly erected, improving the singeing effect, avoiding the occurrence of uneven singeing, and effectively improving the flatness and smoothness after singeing.

[0056] As Figure 1-Figure 5As shown, in order to facilitate the finishing of the cloth after singeing, a negative pressure box 7 is installed between the two second guide rollers 6, a finishing channel 8 is opened in the middle of the negative pressure box 7, and negative pressure chambers 16 are provided at the upper and lower ends of the finishing channel 8 inside the negative pressure box 7, and an adsorption groove 17 is provided between the negative pressure chamber 16 and the finishing channel 8; a negative pressure pump 9 is fixed at the bottom of the support frame 1, and the negative pressure pump 9 is connected to the negative pressure chamber 16 by a pipeline.

[0057] In this embodiment, by setting the negative pressure pump 9, the negative pressure chamber 16 and the adsorption groove 17, the double sides of the cloth passing through the finishing channel 8 are adsorbed, which is beneficial to absorb the singeing debris remaining on the surface of the cloth and improve the smoothness of the cloth.

[0058] like Figure 5 and Fig.11 As shown, in order to realize the input of refrigerant, a refrigerant input pipe 27 is provided on one of the rotating rings 30, and a flexible tube is provided between the refrigerant input pipe 27 and the two cold air pipes 23. The setting of the flexible tube is conducive to the movement of the cold air pipe 23, thereby facilitating the adjustment component to adjust the position of the cold air pipe 23.

[0059] When in use (working), one end of the cloth passes through the two first guide rollers 4, the singeing entrance 12, the singeing channel 20, and the second guide roller 6 in sequence. In this process, the static charge is attached to the surface of the cloth through the setting of the electrostatic generator 3. The force generated by the static electricity makes the fibers and hairs on the surface of the cloth stand up evenly, thereby improving the singeing effect, avoiding the occurrence of uneven singeing, and effectively improving the flatness and finish after singeing. When the cloth enters the singeing channel 20, two heating metal plates 21 are arranged symmetrically with the center of the inner core 11, which is conducive to the double-sided staggered singeing of the cloth, so as to avoid the phenomenon of burning through in the cloth area caused by the simultaneous singeing area. The elastic force in the clockwork spring 31 causes the rotating ring 30 to rotate, thereby driving the pressing plate 33 to move, and the pressing plate 33 pushes the guide ring 32 in the guide The cloth is slid onto the rod 29, so that the cold air pipe 23 moves inside the movable groove 22, and then the cold air pipe 23 is always pressed on the opposite side of the cloth singeing area, so as to achieve the cloth singeing and cool down the cloth at the same time, so as to avoid the cloth being burned and improve the safety of the cloth singeing. While singeing, the smoke exhaust fan 25 is started, and the smoke generated during the singeing is sucked through the smoke exhaust fan 25 and the smoking pipe 24 to avoid excessive accumulation of smoke inside the singeing channel 20 and fumigating the cloth, to prevent the cloth from having too heavy odor, so as to improve the quality of the cloth singeing. After the singeing is completed, the cloth passes through the finishing channel 8, and the negative pressure pump 9 is started at this time. The negative pressure chamber 16 is in a negative pressure state through the negative pressure pump 9, so that the adsorption groove 17 further absorbs the singeing debris on the surface of the cloth, thereby improving the smoothness of the cloth.

[0060] In this process, cold air is input into the two cold air pipes 23 through the refrigerant input pipe 27. With the setting of the cold air output hole, the cold air acts on the opposite side of the singed area of ​​the cloth, thereby achieving the singeing of the cloth and cooling the cloth at the same time, thereby avoiding burns on the cloth and improving the safety of the cloth during singeing.

[0061] A normal temperature medium is input into the hot water absorption pipe 18 through the cold water input pipe 13, and the hot water absorption pipe 18 absorbs the heat energy in the gap between the heat preservation tube 10 and the inner core 11, so that the medium inside the hot water absorption pipe 18 is heated, and then the high-temperature medium is output through the hot water output pipe 14, which can not only cool the inner core 11, but also store the heat energy in the medium, which is beneficial to the reuse of heat energy. In addition, through the setting of the heat preservation tube 10, the outward radiation of heat energy is reduced, and the inner core 11 is insulated to avoid burns caused by accidental contact during operation of workers, thereby improving the safety of equipment use.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0063] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A negative pressure singeing device for fabric finishing, comprising a support frame (1), characterized in that: Also includes: An inner core (11), the inner core (11) is fixed in the support frame (1), and a singeing channel (20) is provided inside the inner core (11), and the singeing channel (20) passes through the center of the inner core (11); A heating metal plate (21), wherein the heating metal plate (21) is arranged inside the singeing channel (20) near two ends, and the two heating metal plates (21) are centrally symmetrical about the center of the inner core (11); A movable groove (22), the movable groove (22) being respectively arranged on two side walls inside the singeing channel (20), and the movable groove (22) being opposite to the heating metal plate (21), a cold air pipe (23) being movably installed inside the movable groove (22), and cold air output holes being evenly opened on the cold air pipe (23); A heat recovery component, the heat recovery component being arranged outside the inner core (11), the heat recovery component comprising a heat preservation cylinder (10) fixed to the outside of the inner core (11), a hot water absorption pipe (18) being installed in the gap between the inner wall of the heat preservation cylinder (10) and the outer wall of the inner core (11); It also includes an adjustment component, which is arranged at both ends of the inner core (11) to adjust the distance between the cold air pipe (23) and the heating metal plate (21), and the adjustment component includes: A transmission cavity (35), the transmission cavity (35) being arranged at both ends of the inner core (11), both ends of the cold air pipe (23) extending into the transmission cavity (35) and being provided with guide rings (32), a guide rod (29) being provided inside the transmission cavity (35) along a direction from the cold air pipe (23) to the opposite heating metal plate (21), the guide rod (29) being slidably connected to the guide ring (32); A fixed column (28), wherein the fixed column (28) is fixed at a central position of one of the transmission chambers (35); A smoking pipe (24), wherein the smoking pipe (24) is installed at the center of another transmission chamber (35); A rotating ring (30) is rotatably mounted on the outside of the smoking pipe (24) and the fixed column (28), and spring springs (31) are respectively mounted in the gaps between the two rotating rings (30) and the smoking pipe (24) and the fixed column (28), and a pressure plate (33) is disposed on the outside of the rotating ring (30) to abut against the outer surface of the cold air pipe (23), and the two pressure plates (33) on the same side are symmetrical about the center of the rotating ring (30); The pressure plate (33) is provided with a notch groove (34), the shortest inner diameter of the notch groove (34) is larger than the outer diameter of the guide rod (29), and the shortest inner diameter of the notch groove (34) is smaller than the outer diameter of the guide ring (32); Both ends of the inner core (11) pass through the support frame (1), and a through groove (26) is provided on the outer side of the inner core (11) at the position of the transmission cavity (35), a push rod (15) is provided in the through groove (26), and one end of the push rod (15) is fixedly connected to the rotating ring (30); One end of the smoking pipe (24) is connected to the singeing channel (20), one end of the inner core (11) is equipped with a smoke exhaust fan (25), and the input end of the smoke exhaust fan (25) is connected to the other end of the smoking pipe (24); There are two groups of the hot water suction pipes (18). The two groups of hot water suction pipes (18) are symmetric about the singeing channel (20), and the projection of the hot water suction pipes (18) in the plane is in a "Z" - shaped structure; One end of each of the two hot water suction pipes (18) is provided with a cold water input pipe (13), and the other end of each of the two hot water suction pipes (18) is provided with a hot water output pipe (14). The cold water input pipe (13) and the hot water output pipe (14) are both three - way pipes; At one end of the singeing channel (20) on the outer side of the heat - preservation cylinder (10), a singeing inlet (12) is opened, and at the other end of the singeing channel (20) on the outer side of the heat - preservation cylinder (10), a singeing outlet (19) is opened; On the upper end of the heat - preservation cylinder (10) inside the support frame (1), upper brackets (2) are symmetrically installed, and on the lower end of the heat - preservation cylinder (10) inside the support frame (1), lower brackets (5) are symmetrically installed. The upper brackets (2) and the lower brackets (5) are both in a "U" - shaped structure; A first guide roller (4) is symmetrically and rotatably installed between the two upper brackets (2), and a second guide roller (6) is symmetrically and rotatably installed between the two lower brackets (5); An electrostatic generator (3) is installed between the two first guide rollers (4). The electrostatic generator (3) imparts static electricity to the fabric to make the fluff on the fabric stand up; A negative - pressure box (7) is installed between the two second guide rollers (6). A finishing channel (8) is opened in the middle of the negative - pressure box (7), and negative - pressure cavities (16) are provided at both the upper and lower ends of the finishing channel (8) inside the negative - pressure box (7). An adsorption groove (17) is provided between the negative - pressure cavity (16) and the finishing channel (8); A negative - pressure pump (9) is fixed at the bottom inside the support frame (1), and the negative - pressure pump (9) is connected to the negative - pressure cavity (16) through a pipeline.

2. A negative pressure singeing device for fabric finishing according to claim 1, characterized in that: A refrigerant input pipe (27) is provided on one of the rotating rings (30), and a flexible pipe is provided between the refrigerant input pipe (27) and the two cold air pipes (23).

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