Processing equipment for polyester fabric

Abstract

According to the technical scheme, the processing equipment is characterized by comprising a dyeing device, a heat setting device, an after-finishing device and a control mechanism. The heat setting device comprises a box body, a feeding channel and a conveying mechanism are arranged in the box body, and a steam setting mechanism is arranged in the middle of the feeding channel. The steam shaping mechanism comprises extrusion pieces symmetrically arranged in the feeding channel, each extrusion piece is composed of pressing plates arranged on the two sides of the fabric up and down, each pressing plate is provided with an air cavity and a spraying hole, the air cavities are connected with a steam source, and the spraying holes face the fabric and can spray high-temperature steam. In addition, the equipment further comprises a driving mechanism which can drive the two sets of extrusion pieces to horizontally move in the width direction of the fabric, and the moving directions of the two sets of extrusion pieces are opposite. According to the equipment, uniform high-temperature steam spraying and fabric pressurizing and smoothing are achieved, the problems of uneven heating and wrinkling caused by the fact that the steam spraying direction is fixed in traditional equipment are effectively solved, and the flatness, the size stability and the finished product quality of the fabric are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of fabric processing equipment, and in particular to a polyester fabric processing equipment. Background Art

[0002] Polyester fabric is a kind of chemical fiber clothing fabric used very much in daily life. Its biggest advantage is its good wrinkle resistance and shape retention. Therefore, it is suitable for making outerwear, various bags, tents and other outdoor products.

[0003] After existing polyester fabrics have undergone preliminary processes such as warping and warp knitting to become grey fabrics, they still need to go through post-processing processes such as dyeing, heat setting and finishing to obtain complete polyester fabrics. The post-processing process is particularly important for the appearance and comfort of the fabric after forming.

[0004] When processing the grey cloth, it needs to pass through dyeing equipment, heat setting equipment and finishing equipment in sequence. Heat setting, as a process between dyeing and finishing, can rearrange the molecular structure of the fabric at high temperature, thereby improving the color uniformity and color fastness in the dyeing process, and making the surface of the fabric smooth, which is convenient for the absorption of finishing agents, laying the foundation for the subsequent finishing process. It is an extremely important process in the processing process.

[0005] Current heat setting equipment usually sprays hot air or high-temperature steam onto fabrics, and cooperates with a tension control system to flatten and transport the fabrics to achieve fabric setting and reduce wrinkles on the fabric surface. However, the steam injection system of the existing heat setting equipment usually has a fixed steam injection direction and position. For wide fabrics, it will cause uneven heating at various positions, resulting in inconsistent setting effects, affecting the quality of the finished product. At the same time, it is difficult to control the fabric to be completely flat during setting through the tension control system, which can easily cause irregular wrinkles, affecting the quality of the finished product. Summary of the invention

[0006] The invention provides a polyester fabric processing device, which solves the problem in the related art that the fabric is unevenly heated during heat setting and is difficult to be completely flat, resulting in poor quality of the finished product.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a processing equipment for polyester fabrics, comprising a dyeing device, a heat setting device, a finishing device and a control mechanism connected in sequence, the heat setting device comprising a box body, a feeding channel for fabrics to pass through and a conveying mechanism distributed along the feeding channel are arranged in the box body, a steam setting mechanism is arranged in the middle of the feeding channel, comprising two groups of extrusion members symmetrically arranged in the feeding channel and slidingly matched with the feeding channel, each group of the extrusion members comprises a pressing plate symmetrically arranged on the upper and lower sides of the fabric, the pressing plate is provided with an air cavity and a spray hole connected to the air cavity, the spray hole is arranged on the side of the pressing plate facing the fabric, and the air cavity is connected to a steam source; it also includes a driving mechanism connecting the two groups of extrusion members, the driving mechanism drives the two groups of extrusion members to move horizontally along the width direction of the fabric, and the movement directions of the two groups of extrusion members are opposite.

[0008] The present invention is further configured such that the driving mechanism includes a rotating shaft rotatably arranged in the feeding channel, one end of the rotating shaft is connected to a rotating motor connected to a control mechanism, a telescopic connecting rod is arranged on the circumferential side of the rotating shaft, the end of the telescopic connecting rod away from the rotating shaft is rotatably connected to the pressing plate, the rotating motor drives the pressing plate to rotate circumferentially around the rotating shaft through the rotating shaft and the telescopic connecting rod, and also includes a guide member cooperating with the pressing plate, the guide member is used to allow the pressing plate to slide horizontally in one direction along the width direction of the fabric when one side of the pressing plate with the injection hole contacts one side of the fabric.

[0009] The present invention is further configured such that a steam pipe corresponding to the position of the pressing plate is arranged in the feeding channel, the steam pipe is hollow and connected to a steam source, the rotating shaft is hollow and rotatably arranged at both ends of the steam pipe, a connecting hole is opened on the circumferential side of the steam pipe corresponding to the rotating shaft, the telescopic connecting rod is hollow, and connects the steam pipe and the air cavity of the pressing plate through the connecting hole; when the rotating shaft drives the pressing plate to rotate to a position contacting the fabric through the telescopic connecting rod, the steam pipe and the air cavity are connected through the connecting hole.

[0010] The present invention is further configured such that the guide member includes mounting plates arranged at both ends of the pressure plate, the mounting plate is provided with a guide groove extending along the width direction of the fabric and arranged parallel to one side of the fabric, an inlet and an outlet are respectively provided at both ends of the guide groove, and a limit block that can slide with the guide groove is provided at one end of the pressure plate facing the mounting plate.

[0011] The present invention is further configured such that the inlet of the guide groove is located in the middle of the feeding channel, and a driving groove perpendicular to the guide groove is extended downward from the inlet. The driving groove cooperates with the limit block to drive the side of the pressure plate with the injection hole to rotate to be parallel to one side of the fabric.

[0012] The present invention is further configured such that the longitudinal cross-section of the limit block is elliptical, and abutment surfaces are provided at both ends along the long axis direction.

[0013] The present invention is further configured such that the width of the driving groove is equal to the short axis length of the limit block, the width of the guide groove is equal to the long axis length of the limit block, and both sides of the guide groove are in contact with the abutment surface; a driving rod is also provided on the mounting plate and is located on one side of the lower end of the driving groove, and the driving rod is used to abut against the side edge of the end of the limit block to drive the pressure plate to rotate.

[0014] The present invention is further configured such that the telescopic connecting rod and the pressure plate are rotatably connected via a hollow pin shaft, a reset coil spring is provided between the pressure plate and the telescopic connecting rod, and the reset coil spring is used to drive the side of the pressure plate with the injection hole to rotate to a position perpendicular to the telescopic connecting rod.

[0015] The present invention is further configured such that the telescopic connecting rod includes a mounting rod fixedly arranged on the circumferential side of the rotating shaft, a sliding rod is slidably arranged on the mounting rod, one end of the sliding rod away from the mounting rod is fixedly connected to the pressure plate, and a return spring is arranged between the mounting rod and the sliding rod.

[0016] The present invention is further configured such that a surface of one side of the pressure plate with the injection hole is coated with a low-friction coating.

[0017] In summary, the beneficial effects of the present invention are: Compared with the prior art, the present application can perform high-temperature steam setting on the fabric passing through the feeding channel by setting a steam setting mechanism in the feeding channel of the box; when the fabric enters the feeding channel of the heat setting device, the conveying mechanism drives the fabric to move forward. At this time, the extrusion piece in the steam setting mechanism slides along the width direction of the fabric under the control of the driving mechanism, and at the same time, the two groups of extrusion pieces move in the opposite direction, slightly pressurizing the fabric and pulling it to both sides, smoothing the wrinkles on the surface of the fabric, thereby eliminating the fine wrinkles on the surface of the fabric and improving the flatness of the fabric, and the steam source provides high-temperature steam to the extrusion piece through the air cavity, and the steam is sprayed onto the surface of the fabric through the injection hole. Due to the sliding design of the extrusion piece, the steam can cover the entire width of the fabric, avoiding the problem of uneven temperature caused by the fixed injection direction in traditional equipment; and as the extrusion piece pressurizes and pulls the fabric, the high-temperature steam can directly set the smoothed part, realizing the ironing of the fabric and better setting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a diagram of the equipment structure of this embodiment.

[0019] Figure 2 It is a three-dimensional diagram of the heat setting device of this embodiment.

[0020] Figure 31 is a diagram showing the internal structure of the heat setting device of this embodiment.

[0021] Figure 4 It is a side sectional view of the heat setting device of this embodiment.

[0022] Figure 5 It is a structural diagram of the steam setting machine of the present embodiment.

[0023] Figure 6 It is a schematic diagram of the cooperation between the guide member and the pressure plate of this embodiment.

[0024] Figure 7 It is a structural diagram of the steam pipeline of this embodiment.

[0025] Figure 8 This is an enlarged view of the limit block.

[0026] : 100, dyeing device; 200, heat setting device; 300, finishing device; 1, box; 2, feeding channel; 3, conveying mechanism; 30, feeding roller group; 31, guide roller; 32, tensioning roller; 4, steam setting mechanism; 40, extrusion member; 41, pressure plate; 42, air cavity; 43, steam source; 44, injection hole; 45, high-pressure hole; 5, driving mechanism; 50, rotating shaft; 51, steam pipe; 510, connecting hole; 52, telescopic connecting rod; 521, mounting rod; 522, sliding rod; 53, pin shaft; 54, rotating motor; 6, guide member; 60, mounting plate; 61, guide groove; 62, limit block; 620, abutment surface; 63, driving groove; 64, driving rod. DETAILED DESCRIPTION

[0027] The following will be combined with 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 the present invention.

[0028] like Figure 1-8As shown, the present embodiment discloses a processing equipment for polyester fabrics, comprising a dyeing device 100, a heat setting device 200, a finishing device 300 and a control mechanism connected in sequence; the control mechanism comprises a main control box and a control panel, which are connected to the above three devices and are used to control and debug various values ​​of the three devices when working. The dyeing device 100 and the finishing device 300 are both existing technologies and products, and are not the focus of improvement of the present application, so they are not described in detail; at the same time, the dyeing device 100 and the heat setting device 200, and the heat setting device 200 and the finishing device 300 are all conveyed and transferred by conveyor belts; and in order to cope with the different processing speeds between each device, a buffer device can also be arranged between two adjacent devices, the buffer device comprises a cloth storage box and a tension buffer roller group, the cloth storage box can temporarily store the fabric when the processing speed of the current stage device is faster than that of the subsequent stage device to prevent the fabric from being piled up, and the tension buffer roller group can relax or tighten the fabric to keep the fabric tension stable when the processing speed of the equipment is inconsistent.

[0029] like Figure 2 As shown, the heat setting device 200 includes a box body 1, in which a feeding channel 2 for fabrics to pass through and a conveying mechanism 3 distributed along the feeding channel 2 are arranged. The conveying mechanism 3 is a feeding roller group 30 arranged at the openings at both ends of the feeding channel 2. The feeding roller group 30 can clamp the fabric and convey it forward; it also includes a plurality of guide rollers 31 and a tensioning roller 32. The tensioning roller 32 and the guide roller 31 are mature products currently available on the market. The guide roller 31 can change the conveying direction of the fabric, and the tensioning roller 32 is connected to the control mechanism, which can detect the tension of the fabric through a sensor, and then the tension of the fabric can be controlled by adjusting the position of the tensioning roller 32.

[0030] A steam shaping mechanism 4 is provided in the middle of the feeding channel 2. Figure 3 The method comprises two groups of extrusion members 40 symmetrically arranged in the feeding channel 2 and slidingly matched with the feeding channel 2. Each group of extrusion members 40 comprises pressure plates 41 symmetrically arranged on the upper and lower sides of the fabric. The pressure plates 41 symmetrically arranged on the upper and lower sides can squeeze the fabric between the two to exert a pressurizing effect. While the two groups of extrusion members 40 are extruding the fabric, the two groups of extrusion members 40 will move in opposite directions along the width direction of the fabric under the action of the driving mechanism 5, so that the fabric is subjected to tensioning force on both sides to achieve tightening. This can effectively reduce wrinkles on the surface of the fabric and improve the overall flatness of the fabric.

[0031] At the same time, an air cavity 42 and a spray hole 44 connected to the air cavity 42 are provided on the pressing plate 41. The spray hole 44 is provided on the side of the pressing plate 41 facing the fabric, and the air cavity 42 is connected to the steam source 43. The steam source 43 can provide a continuous supply of high-temperature steam to the air cavity 42 of the pressing plate 41, and then the high-temperature steam in the air cavity 42 will be sprayed toward the fabric through the spray hole 44 on the pressing plate 41 to heat the fabric, so that the steam can soften the fiber structure and make it more flexible and stable.

[0032] At the same time, since the pair of pressing plates 41 squeeze the fabric, the high-temperature steam can quickly penetrate into the fibers of the fabric, and the pressurization of the extruder 40 ensures that the steam evenly penetrates every part of the fabric. The uniform distribution of steam with the help of pressurization can keep the fabric at a consistent temperature and humidity during the shaping process, avoiding the problem of inconsistent shaping effects caused by uneven steam injection in traditional equipment.

[0033] In the process of shaping the fabric with high-temperature steam, the pressing plate 41 can move unidirectionally along the width direction of the fabric under the action of the driving mechanism 5, so that the steam can cover the entire width of the fabric, making the high-temperature steam evenly distributed on the surface of the fabric, effectively solving the problem of uneven heating of the fabric caused by the fixed spray direction in traditional equipment. Even wide or unevenly thick fabrics can achieve a consistent shaping effect.

[0034] like Figure 4-5 As shown, the driving mechanism 5 includes a rotating shaft 50 rotatably arranged in the feeding channel 2, one end of the rotating shaft 50 is connected to a rotating motor 54 connected to the control mechanism, a telescopic connecting rod 52 is arranged on the circumference of the rotating shaft 50, and one end of the telescopic connecting rod 52 away from the rotating shaft 50 is rotatably connected to the pressing plate 41, and as shown in FIG. Figure 6 As shown, the telescopic connecting rod 52 is rotatably connected to the pressing plate 41 through a hollow pin shaft 53, and a reset coil spring is arranged between the pressing plate 41 and the telescopic connecting rod 52. When the rotating motor 54 drives the telescopic connecting rod 52 to rotate circumferentially through the rotating shaft 50, when the pressing plate 41 has not reached the working position, the pressing plate 41 is not subjected to external force, so it will be in a vertical state with the telescopic connecting rod 52 under the action of the reset coil spring, and the side of the pressing plate 41 with the injection hole 44 will rotate with the rotation of the telescopic connecting rod 52. The telescopic connecting rod 52 includes a mounting rod 521 fixedly arranged on the peripheral side of the rotating shaft 50, and a sliding rod 522 is slidably arranged on the mounting rod 521. The end of the sliding rod 522 away from the mounting rod 521 is fixedly connected to the pressing plate 41, and a reset spring is arranged between the mounting rod 521 and the sliding rod 522. The reset spring can drive the sliding rod 522 to drive the pressing plate 41 to slide toward the rotating shaft 50.

[0035] The rotating motor 54 drives the pressure plate 41 to rotate circumferentially around the rotating shaft 50 through the rotating shaft 50 and the telescopic connecting rod 52, and also includes a guide member 6 that cooperates with the pressure plate 41. The guide member 6 includes mounting plates 60 arranged at both ends of the pressure plate 41, and the mounting plates 60 are provided with guide grooves 61 extending along the width direction of the fabric and parallel to one side of the fabric. An inlet and an outlet are respectively provided at both ends of the guide groove 61. A limit block 62 that can slide with the guide groove 61 is provided at one end of the pressure plate 41 facing the mounting plate 60.

[0036] When the rotating shaft 50 drives the pressing plate 41 to rotate circumferentially, when the pressing plate 41 approaches the fabric and passes through the guide member 6, the limit block 62 at the end of the pressing plate 41 will enter the guide groove 61 through the entrance. Since the pressing plate 41 and the telescopic connecting rod 52 are rotatably connected, and the telescopic connecting rod 52 can be retracted, the pressing plate 41 can only make horizontal linear motion under the limitation of the guide groove 61 as driven by the rotating shaft 50, so that the side of the pressing plate 41 with the injection hole 44 is always parallel to the fabric, so that the high-temperature steam can evenly shape the fabric until the pressing plate 41 moves to the position of the outlet of the guide groove 61, allowing the limit block 62 to separate from the guide groove 61 along the outlet, allowing the pressing plate 41 to separate from the fabric, thereby completing the unidirectional movement of the pressing plate 41.

[0037] In order to improve the shaping and extrusion efficiency of the fabric, a plurality of telescopic connecting rods 52 and pressing plates 41 may be arranged at equal intervals around the rotating shaft 50, so as to achieve continuous shaping and extrusion of the fabric and improve efficiency.

[0038] The entrance of the guide groove 61 is located in the middle of the feeding channel 2, and a driving groove 63 perpendicular to the guide groove 61 is extended downward at the entrance. The longitudinal cross-section of the limit block 62 is elliptical, and abutment surfaces 620 are provided at both ends along the long axis direction; the width of the driving groove 63 is equal to the short axis length of the limit block 62, the width of the guide groove 61 is equal to the long axis length of the limit block 62, and the two sides of the guide groove 61 are in contact with the abutment surface 620; a driving rod 64 is also provided on the mounting plate 60 and is located on one side of the lower end of the driving groove 63, and the driving rod 64 is used to abut the side edge of the end of the limit block 62 to drive the pressure plate 41 to rotate.

[0039] like Figure 8As shown, the limit block 62 is elliptical, and the long axis of the limit block 62 is perpendicular to the side of the pressure plate 41 with the injection hole 44. Since the width of the driving groove 63 is equal to the short axis length of the limit block 62, when the rotating shaft 50 drives the pressure plate 41 to rotate to the entrance of the driving groove 63, the limit block 62 will be stuck at the entrance of the driving groove 63. Since the mounting plate 60 is provided with a driving rod 64 located below the driving groove 63, the driving rod 64 will first abut against one end of the limit block 62, thereby driving the limit block 62 to drive the pressure plate 41 to rotate until the limit block 62 can enter the driving groove 63. At this time, the side of the pressure plate 41 with the injection hole 44 will face the fabric, so that after the steam is ejected from the middle of the fabric, it will diffuse outward along the horizontal and longitudinal directions of the fabric, gradually covering the entire width and length of the fabric. This diffusion process allows the steam to be evenly distributed on the surface of the fabric, avoiding uneven shaping problems caused by premature heating of the edges or local areas. At the same time, when the steam is sprayed from the middle, it can pre-flatten the fabric, allowing the wrinkles in the center to gradually unfold when the steam diffuses. This method can prevent wrinkles from gradually accumulating or being fixed during the steam spraying process, ensure that the surface of the fabric is flat and smooth, and improve the production quality of the fabric.

[0040] like Figure 7 As shown, in order to facilitate the connection between the steam source 43 and the air cavity 42 of the pressing plate 41, a steam pipe 51 corresponding to the position of the pressing plate 41 is arranged in the feeding channel 2, the steam pipe 51 is hollow and connected to the steam source 43, the rotating shaft 50 is hollow and rotatably arranged at both ends of the steam pipe 51, and a connecting hole 510 is opened on the circumferential side of the steam pipe 51 corresponding to the rotating shaft 50, and the telescopic connecting rod 52 is hollow, which connects the steam pipe 51 and the air cavity 42 of the pressing plate 41 through the connecting hole 510; when the rotating shaft 50 drives the pressing plate 41 to rotate to the position contacting the fabric through the telescopic connecting rod 52, the steam pipe 51 is connected to the air cavity 42 through the connecting hole 510, thereby realizing the smooth injection of high-temperature steam.

[0041] At the same time, in order to reduce the friction between the fabric and the pressing plate 41, a low-friction coating can be coated on the surface of the fabric. The low-friction coating uses polytetrafluoroethylene, which can reduce the friction between the extrusion block and the fabric, thereby ensuring smooth transportation of the fabric and avoiding damage caused by friction between the fabric and the pressing plate 41.

[0042] In order to further reduce the friction between the fabric and the pressing plate 41, a plurality of high-pressure holes 45 can be provided on the side of the pressing plate 41 with the injection holes 44. When steam is ejected from the high-pressure holes 45, a thin layer of steam air cushion will be formed between the fabric and the extrusion block. The air cushion can not only effectively reduce friction, but also make the fabric "float" between the extrusion blocks, thereby reducing wrinkles caused by friction.

[0043] At the same time, the mounting plate 60 of the guide member 6 is installed in the feeding channel 2 through the lifting rod. The lifting plate can adjust the height of the guide groove 61 and the driving groove 63 through the mounting plate 60, so as to adapt to fabrics of different thicknesses.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A polyester fabric processing device, comprising a dyeing device (100), a heat setting device (200), a finishing device (300) and a control mechanism connected in sequence, characterized in that: The heat setting device (200) comprises a box (1), wherein a feeding channel (2) for fabric to pass through and a conveying mechanism (3) distributed along the feeding channel (2) are arranged in the box (1), and a steam setting mechanism (4) is arranged in the middle of the feeding channel (2), comprising two groups of extrusion members (40) symmetrically arranged in the feeding channel (2) and slidingly matched with the feeding channel (2), each group of the extrusion members (40) comprising a pressing plate (41) symmetrically arranged on the upper and lower sides of the fabric, the pressing plate (41) being provided with an air cavity (42) and an injection hole (44) communicating with the air cavity (42), the injection hole (44) being arranged on a side of the pressing plate (41) facing the fabric, and the air cavity (42) being connected to a steam source (43); and further comprising a driving mechanism (5) connecting the two groups of extrusion members (40), wherein the driving mechanism (5) drives the two groups of extrusion members (40) to move horizontally along the width direction of the fabric, and the movement directions of the two groups of extrusion members (40) are opposite.

2. The polyester fabric processing equipment according to claim 1, characterized in that: The driving mechanism (5) comprises a rotating shaft (50) rotatably arranged in the feeding channel (2), one end of the rotating shaft (50) is connected to a rotating motor (54) connected to a control mechanism, a telescopic connecting rod (52) is arranged on the peripheral side of the rotating shaft (50), one end of the telescopic connecting rod (52) away from the rotating shaft (50) is rotatably connected to the pressing plate (41), the rotating motor (54) drives the pressing plate (41) to rotate around the rotating shaft (50) through the rotating shaft (50) and the telescopic connecting rod (52), and also comprises a guiding member (6) matched with the pressing plate (41), the guiding member (6) is used to make the pressing plate (41) slide horizontally in one direction along the width direction of the fabric when a side of the pressing plate (41) with the injection hole (44) contacts a side surface of the fabric.

3. The polyester fabric processing equipment according to claim 2, characterized in that: A steam pipe (51) corresponding to the position of the pressing plate (41) is arranged in the feeding channel (2); the steam pipe (51) is hollow and connected to a steam source (43); the rotating shaft (50) is hollow and rotatably arranged at both ends of the steam pipe (51); a connecting hole (510) is opened on the circumference of the steam pipe (51) corresponding to the rotating shaft (50); the telescopic connecting rod (52) is hollow and connects the steam pipe (51) and the air cavity (42) of the pressing plate (41) through the connecting hole (510); when the rotating shaft (50) drives the pressing plate (41) to rotate to a position contacting the fabric through the telescopic connecting rod (52), the steam pipe (51) and the air cavity (42) are connected through the connecting hole (510).

4. The polyester fabric processing equipment according to claim 2, characterized in that: The guide member (6) comprises mounting plates (60) arranged at both ends of the pressing plate (41); the mounting plate (60) is provided with a guide groove (61) extending in the width direction of the fabric and arranged parallel to one side of the fabric; an inlet and an outlet are respectively provided at both ends of the guide groove (61); and a limit block (62) slidably matched with the guide groove (61) is provided at one end of the pressing plate (41) facing the mounting plate (60).

5. The polyester fabric processing equipment according to claim 4, characterized in that: The inlet of the guide groove (61) is located in the middle of the feeding channel (2), and a driving groove (63) is provided at the inlet extending downward and perpendicular to the guide groove (61). The driving groove (63) cooperates with the limit block (62) to drive the side of the pressing plate (41) with the injection hole (44) to rotate to be parallel to the side of the fabric.

6. The polyester fabric processing equipment according to claim 5, characterized in that: The limit block (62) has an elliptical longitudinal cross-section, and abutment surfaces (620) are provided at both ends along the long axis direction.

7. The polyester fabric processing equipment according to claim 6, characterized in that: The width of the driving groove (63) is equal to the short axis length of the limit block (62), the width of the guide groove (61) is equal to the long axis length of the limit block (62), and both sides of the guide groove (61) are in contact with the abutment surface (620); the mounting plate (60) is further provided with a driving rod (64) located on one side of the lower end of the driving groove (63), and the driving rod (64) is used to abut against the side edge of the end of the limit block (62) to drive the pressure plate (41) to rotate.

8. The polyester fabric processing equipment according to claim 7, characterized in that: The telescopic connecting rod (52) and the pressing plate (41) are rotatably connected via a hollow pin shaft (53), and a return coil spring is provided between the pressing plate (41) and the telescopic connecting rod (52), the return coil spring being used to drive a side of the pressing plate (41) with the injection hole (44) to rotate to a position perpendicular to the telescopic connecting rod (52).

9. The polyester fabric processing equipment according to claim 8, characterized in that: The telescopic connecting rod (52) comprises a mounting rod (521) fixedly arranged on the circumference of the rotating shaft (50), a sliding rod (522) being slidably arranged on the mounting rod (521), an end of the sliding rod (522) away from the mounting rod (521) being fixedly connected to the pressing plate (41), and a return spring being arranged between the mounting rod (521) and the sliding rod (522).

10. The polyester fabric processing equipment according to claim 1, characterized in that: A low-friction coating is applied to the surface of one side of the pressure plate (41) having the injection hole (44).

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