Polyester yarn shrinking device
By installing a purification system in the polyester filament shrinking device, the problem of direct emission of harmful gases is solved, gas purification and recycling are realized, and the safety and comfort of the working environment are improved.
Patent Information
- Application Number
- CN202521250218.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-18
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-06-18
AI Technical Summary
Existing polyester filament shrinking devices release harmful gases directly into the environment during the heating process, which can easily cause discomfort if inhaled.
The polyester filament shrinking device is equipped with unwinding and rewinding rollers, and through a combination of gas collection hood, purification box, filter plate, activated carbon block, circulating fan and heating rod, the purification and recycling of harmful gases are achieved.
It effectively purifies harmful gases, preventing them from being emitted into the outside world, thus improving the safety and comfort of the working environment.
Smart Images

Figure CN224678247U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polyester filament technology, specifically to a polyester filament shrinking device. Background Technology
[0002] After completing its own processing, polyester filament has a high shrinkage rate. If it is used directly in subsequent production processes, it will inevitably affect the quality of the finished product. Therefore, it is necessary to shrink polyester filament. At present, the main method for shrinking polyester filament is to use a heating furnace to heat the polyester filament. Through heating treatment, the shrinkage rate of polyester filament can be reduced. After shrinkage treatment, polyester filament can be widely used in various applications in production.
[0003] A search revealed an existing technology, such as CN215905597U, which describes a polyester filament shrinking device. This device includes a housing with symmetrically distributed baffles fixed to its inner wall, dividing the housing into a placement chamber, a heating chamber located on one side of the placement chamber, and a winding chamber located on one side of the heating chamber. The tops of both the placement and winding chambers are rotatably connected to a telescopic mechanism via bearings, and a top plate is fixed to the bottom of the telescopic mechanism. The bottoms of both the placement and winding chambers are rotatably connected to a connecting rod via bearings. This invention, through the use of a telescopic mechanism, top plate, connecting rod, and bottom plate, can conveniently fix the raw filament roller and the winding roller, and is applicable to raw filament rollers of different sizes, improving the device's practicality. By using a spiral tube and cooling fan to cool the hot air before it is introduced into the placement chamber for preheating, damage to the polyester filament caused by sudden temperature changes is avoided. Furthermore, the hot air is introduced into the winding chamber for slow cooling, resulting in higher efficiency in shrinking and shaping the polyester filament.
[0004] In summary, existing polyester filament shrinking devices have improved the efficiency of polyester filament shrinking and shaping. However, in existing polyester filament shrinking devices, harmful gases generated during the heating process are directly emitted into the environment, which can easily cause discomfort to the human body if inhaled. Therefore, a new polyester filament shrinking device is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a polyester filament shrinking device to solve the problem mentioned in the background art that the existing polyester filament shrinking devices directly release harmful gases generated during the heating process of polyester filament into the outside world, which can easily cause discomfort to the human body when inhaled.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a polyester filament shrinking device, comprising a box body, an unwinding roller on one side of the outer side of the box body, and a winding roller on the other side of the outer side of the box body. A gas collecting hood is installed at the bottom of the inner side of the box body, and the gas collecting hood is connected to a purification box through a first conveying pipe. A filter plate is installed inside the purification box, and an activated carbon block is provided on one side of the filter plate. The purification box is connected to a circulating fan through a second conveying pipe, and the circulating fan is connected to a protective box installed inside the box body through a third conveying pipe. Several sets of heating rods are installed inside the protective box, and the protective box is connected to the interior of a gas equalization plate through a connecting pipe.
[0007] Preferably, the housing has a first through hole on one side of the unwinding roller, a first conveying roller mechanism is installed on one side of the first through hole, and a second conveying roller mechanism that works in conjunction with the first conveying roller mechanism is provided on the other side of the first through hole.
[0008] The above technical solution facilitates the transport of polyester filaments.
[0009] Preferably, one end of the take-up roller is connected to the drive motor, and the housing is provided with a second through hole on one side of the take-up roller.
[0010] The above technical solution facilitates the winding of polyester filaments.
[0011] Preferably, the box body has several sets of guide roller mechanisms arranged alternately inside.
[0012] The above technical solution facilitates increasing the conveying distance of polyester filaments inside the box.
[0013] Preferably, each activated carbon block has equally spaced conical air inlets on the side near the filter plate, and the conical air inlets are connected to curved air holes that penetrate the interior of the activated carbon block.
[0014] The above technical solution facilitates gas purification.
[0015] Preferably, the enclosure includes an outer enclosure, and an insulation layer and an inner enclosure are sequentially fixedly disposed on the inner side of the outer enclosure. The insulation layer includes an insulation cotton layer, and a polyurethane insulation layer and a fiberglass layer are sequentially fixedly disposed on the outer side of the insulation cotton layer.
[0016] The above technical solutions improve the thermal insulation performance of the enclosure.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This polyester filament shrinking device addresses the problem that existing polyester filament shrinking devices directly release harmful gases generated during the heating process into the outside, which can easily cause discomfort to the human body when inhaled. It solves this problem by installing a unwinding roller on one side of the outer casing and a winding roller on the other side. A gas collection hood is installed at the bottom of the inner casing, and the hood is connected to a purification chamber via a first conveying pipe. A filter plate is installed inside the purification chamber, and an activated carbon block is placed on one side of the filter plate. The purification chamber is connected to a circulating fan via a second conveying pipe, and the circulating fan is connected to a protective box inside the casing via a third conveying pipe. Several sets of heating rods are installed inside the protective box, and the protective box is connected to a gas equalization plate via a connecting pipe. Under the action of the circulating fan, harmful gases inside the casing enter the purification chamber for purification, and the purified gas re-enters the casing for further purification. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the overall rear cross-sectional structure of this utility model;
[0020] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0021] Figure 4 This is a schematic diagram of the activated carbon block structure of this utility model;
[0022] Figure 5 This utility model Figure 1 Enlarged structural diagram at point B;
[0023] Figure 6 This is a schematic diagram of the box structure of this utility model.
[0024] In the diagram: 1. Box body; 101. Outer box body; 102. Insulation layer; 1021. Insulation cotton layer; 1022. Polyurethane insulation layer; 1023. Fiberglass layer; 103. Inner box body; 2. Unwinding roller; 3. Rewinding roller; 4. Gas collection hood; 401. First conveying pipe; 402. Purification box; 4021. Filter plate; 403. Activated carbon block; 4031. Conical air inlet; 4032. Curved air hole; 404. Second conveying pipe; 405. Circulating fan; 406. Third conveying pipe; 407. Protective box; 408. Heating rod; 409. Connecting pipe; 4091. Gas equalization plate; 5. First conveying roller mechanism; 501. Second conveying roller mechanism; 6. Drive motor; 7. Guide roller mechanism. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-6 This utility model provides a technical solution: a polyester filament shrinkage device, wherein an unwinding roller 2 is provided on one side of the outer side of the box 1, and a winding roller 3 is installed on the other side of the outer side of the box 1.
[0027] To further explain, the enclosure 1 includes an outer enclosure 101, and an insulation layer 102 and an inner enclosure 103 are sequentially fixed on the inner side of the outer enclosure 101. The insulation layer 102 can improve the insulation performance of the enclosure 1. The insulation layer 102 includes an insulation cotton layer 1021, and a polyurethane insulation layer 1022 and a fiberglass layer 1023 are sequentially fixed on the outer side of the insulation cotton layer 1021.
[0028] To further explain, the insulation layer 1021 uses insulation cotton, which is a new type of non-toxic, harmless, and pollution-free insulation material made from high-purity clay clinker, alumina powder, silica powder, chromium sand, and other raw materials. It has the characteristics of being lightweight, oxidation-resistant, having low thermal conductivity, good flexibility, corrosion-resistant, having low heat capacity, and sound insulation. The polyurethane insulation layer 1022 is a polyurethane foam plastic, which has good heat insulation, sound insulation, shock resistance, and anti-toxic properties. The glass fiber layer 1023 is made of glass fiber, which has good insulation and strong heat resistance and can be used as a thermal insulation material.
[0029] Specifically, the housing 1 has a first through hole on one side of the unwinding roller 2. A first conveying roller mechanism 5 is installed on one side of the first through hole, and a second conveying roller mechanism 501 that works in conjunction with the first conveying roller mechanism 5 is provided on the other side of the first through hole. The first conveying roller mechanism 5 includes two sets of rotatably arranged conveying rollers. The first conveying roller mechanism 5 and the second conveying roller mechanism 501 have the same structure.
[0030] In a further embodiment, one end of the take-up roller 3 is connected to the drive motor 6, and the housing 1 has a second through hole on one side of the take-up roller 3.
[0031] In a further embodiment, several sets of guide roller mechanisms 7 are staggered inside the box body 1. By setting several sets of guide roller mechanisms 7, it is easy to increase the conveying distance of polyester filament. A box door is opened on one side of the box body 1.
[0032] Specifically, a gas collecting hood 4 is installed at the bottom inside the housing 1, and the gas collecting hood 4 is connected to the purification box 402 through the first conveying pipe 401. A maintenance door is provided on one side of the purification box 402 to facilitate later maintenance of the interior of the purification box 402. A filter plate 4021 is installed inside the purification box 402, which can filter impurities in the gas. An activated carbon block 403 is provided on one side of the filter plate 4021. The purification box 402 is connected to the circulating fan 405 through the second conveying pipe 404, and the circulating fan 405 is connected to the protective box 407 installed inside the housing 1 through the third conveying pipe 406. Several sets of heating rods 408 are installed inside the protective box 407, and the protective box 407 is connected to the interior of the gas equalization plate 4091 through the connecting pipe 409. By setting the gas equalization plate 4091, the heated gas can be sprayed out evenly.
[0033] In a further embodiment, each of the activated carbon blocks 403 near the filter plate 4021 has equally spaced conical air inlets 4031, and the conical air inlets 4031 are connected to curved air holes 4032 penetrating the interior of the activated carbon blocks 403. The curved air holes 4032 are used to make the air impact with the activated carbon, improve the fullness of contact, and increase the adsorption and deodorization effect.
[0034] In use, the polyester filament is sequentially passed through the first conveying roller mechanism 5, the second conveying roller mechanism 501, and the guide roller mechanism 7, and finally connected to the winding roller 3. The drive motor 6 is turned on to wind the polyester filament. During the winding process, the circulating fan 405 and the heating rod 408 are turned on. Under the action of the circulating fan 405, the gas inside the box 1 enters the purification box 402 through the gas collection hood 4 and the first conveying pipe 401. The activated carbon block 403 and the filter plate 4021 can purify and filter the gas. The purified gas enters the protective box 407 through the third conveying pipe 406 for heating. The heated gas is discharged back into the box 1 through the gas equalization plate 4091, thereby increasing the internal temperature of the box 1.
[0035] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A polyester yarn shrinking device comprising a box (1), characterized in that: A unwinding roller (2) is provided on one side of the outer side of the box (1), and a winding roller (3) is installed on the other side of the outer side of the box (1). A gas collecting hood (4) is installed at the bottom of the inner side of the box (1), and the gas collecting hood (4) is connected to the purification box (402) through the first conveying pipe (401). A filter plate (4021) is installed inside the purification box (402), and an activated carbon block (403) is provided on one side of the filter plate (4021). The purification box (402) is connected to the circulating fan (405) through the second conveying pipe (404), and the circulating fan (405) is connected to the protective box (407) installed inside the box (1) through the third conveying pipe (406). Several sets of heating rods (408) are installed inside the protective box (407), and the protective box (407) is connected to the interior of the gas equalization plate (4091) through the connecting pipe (409).
2. A polyester yarn shrinking device according to claim 1, characterized in that: The housing (1) has a first through hole on one side of the unwinding roller (2), a first conveying roller mechanism (5) is installed on one side of the first through hole, and a second conveying roller mechanism (501) is provided on the other side of the first through hole to cooperate with the first conveying roller mechanism (5).
3. The polyester filament shrinking device according to claim 1, characterized in that: One end of the take-up roller (3) is connected to the drive motor (6), and the housing (1) is provided with a second through hole on one side of the take-up roller (3).
4. The polyester filament shrinking device according to claim 1, characterized in that: The box (1) is equipped with several sets of guide roller mechanisms (7) arranged in an alternating manner.
5. A polyester filament shrinking device according to claim 1, characterized in that: The activated carbon block (403) has conical air inlets (4031) distributed at equal intervals on the side near the filter plate (4021), and the conical air inlets (4031) are connected to the curved air holes (4032) that penetrate the interior of the activated carbon block (403).
6. The polyester filament shrinking device according to claim 1, characterized in that: The enclosure (1) includes an outer enclosure (101), and an insulation layer (102) and an inner enclosure (103) are sequentially fixed on the inner side of the outer enclosure (101). The insulation layer (102) includes an insulation cotton layer (1021), and a polyurethane insulation layer (1022) and a fiberglass layer (1023) are sequentially fixed on the outer side of the insulation cotton layer (1021).