A denim fabric creasing device and creasing process thereof

Abstract

The application relates to a kind of jeans fabric wrinkle device and its wrinkle process, including base, base is equipped with presser and fixed platform, negative pressure cavity is opened in fixed platform, the upper surface of fixed platform is equipped with a plurality of suction holes that are communicated with negative pressure cavity, base is equipped with negative pressure cylinder, piston is slidably connected in negative pressure cylinder, piston and the bottom wall of negative pressure cylinder form telescopic cavity, air pipe is connected between fixed platform and negative pressure cylinder, first threaded rod is rotatably connected on base, first threaded rod is coaxially fixedly connected with transmission gear, presser is fixedly connected with transmission rack that is engaged with transmission gear in presser. In the process that presser moves to fixed platform, piston slides away from the bottom wall of negative pressure cylinder, negative pressure is generated in telescopic cavity and negative pressure cavity, and air continuously enters negative pressure cavity through suction hole. Air flowing from outside to inside continuously compresses pillowcase on fixed platform. The application has the effect of reducing the rebound degree of wrinkle on pillowcase and improving the wrinkle effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fabric processing technology and equipment, in particular to a denim fabric creasing device and a creasing process thereof. BACKGROUND

[0002] Denim fabric is a kind of thick cotton yarn cloth, which originally only has blue color and is used as sailcloth. Nowadays, it has various colors and can be used to match different clothing and home textile products, such as pillowcases. Denim fabric has good wear resistance and tensile resistance, but poor elasticity. Some pillowcases are creased during production to increase the overall elasticity of the pillowcases, thereby improving the comfort of the pillowcases and having certain aesthetic function.

[0003] During creasing of the pillowcase, the pillowcase is usually soaked in resin, the soaked pillowcase is placed on the fixing table, the corresponding part of the pillowcase is folded, the preliminary shaping is performed by using a pressing and ironing device, and the further shaping is performed by using drying.

[0004] According to the related technology in the above, the denim fabric is thick, and the hands of the staff need to be separated from the pillowcase before the pillowcase contacts the pressing and ironing device after the folding treatment of the pillowcase is completed. The folds on the pillowcase will rebound to a certain extent at this time, which affects the creasing effect. SUMMARY

[0005] In order to enhance the creasing effect, the present application provides a denim fabric creasing device and a creasing process thereof.

[0006] In a first aspect, the present application provides a denim fabric creasing device, which adopts the following technical solution:

[0007] The denim fabric creasing device comprises a base, a pressing and ironing machine for creasing denim fabric and a fixing table for fixing a pillowcase are arranged on the base, a negative pressure cavity is arranged in the fixing table, a plurality of air suction holes communicating with the negative pressure cavity are arranged on the upper surface of the fixing table, a negative pressure cylinder for generating negative pressure is arranged on the base, a piston is slidably connected in the negative pressure cylinder, an extension cavity is formed between the piston and the bottom wall of the negative pressure cylinder, an air duct is connected between the fixing table and the negative pressure cylinder, the air duct communicates the negative pressure cavity and the extension cavity, a first threaded rod for driving the piston to slide is rotatably connected to the base, a transmission gear is coaxially fixedly connected to the first threaded rod, a transmission rack meshing with the transmission gear is fixedly connected to the pressing and ironing machine, the length direction of the transmission rack is parallel to the moving direction of the pressing and ironing machine, and when the pressing and ironing machine moves towards the fixing table, the first threaded rod drives the piston to slide away from the bottom wall of the negative pressure cylinder.

[0008] By adopting the above technical scheme, the staff sets the pillowcase on the fixing table and folds the corresponding part of the pillowcase, in the process of moving the pressing machine to the fixing table, the transmission rack drives the transmission gear to rotate and in turn drives the first threaded rod to rotate, the first threaded rod drives the piston to slide away from the bottom wall of the negative pressure cylinder, so that the negative pressure is generated in the telescopic cavity, the telescopic cavity is communicated with the negative pressure cavity through the air duct, so that the negative pressure is also generated in the negative pressure cavity, under the action of the external atmospheric pressure, air continuously enters the negative pressure cavity through the air inlet. The air flowing from the outside to the inside continuously presses the upper surface of the pillowcase on the fixing table, which helps to reduce the rebound degree of the wrinkles on the pillowcase and improve the pressing effect.

[0009] Optionally, the surface of the fixing table near the pressing machine side is an arc surface matching the shape of the filled pillow, and the surface of the pressing machine near the fixing table side is matched with the fixing table.

[0010] By adopting the above technical scheme, the pillowcase can be in the configuration state when it is filled during pressing, which helps workers to more intuitively obtain the effect after pressing when folding, avoids large deviation in folding work, and helps to improve the quality of pressing.

[0011] Optionally, the base is provided with a horizontally arranged slide rail, the fixing table is provided with a plurality of slide rails, and the fixing table is slidably connected to the slide rail, the air duct includes a first connector and an air hose communicated with the telescopic cavity, the fixing table is provided with a second connector communicated with the negative pressure cavity, and the first connector is movably connected with the second connector.

[0012] By adopting the above technical scheme, the pressing work of the pressing machine needs to be paused during the process of setting the pillowcase on the fixing table and taking the pillowcase off the fixing table, which affects the pressing efficiency to some extent. By setting multiple fixing tables and slide rails on the base, the fixing tables are movably connected to the slide rails, the fixing tables can be slid to move into and out of the corresponding working position of the pressing machine, when the pressing machine cooperates with the fixing table directly below to perform the pressing work, the other fixing tables can simultaneously perform the feeding and discharging processes, when one pillowcase pressing work is completed, the other feeding completed fixing table can be quickly switched and the pressing work can be continued, which helps to improve the pressing efficiency.

[0013] Optionally, the first connector is slidably connected to the base, and the sliding direction of the first connector is perpendicular to the sliding direction of the fixing table, the pressing machine is fixedly connected with a transmission rod, one end of the transmission rod away from the pressing machine is provided with a guide slope for driving the first connector to slide towards the fixing table, and when the first connector abuts against the side surface of the transmission rod, the other end of the first connector away from the transmission rod abuts against the second connector.

[0014] By adopting the technical scheme, when the fixed table slides to a position matched with the pressing machine to perform the crimping work, the pressing machine moves towards the fixed table, the guide slope on the transmission rod first contacts the first joint and drives the first joint to slide towards the fixed table until the first joint abuts against the second joint to be connected, at this time, the first joint abuts against the side surface of the transmission rod and no longer slides, and the switching of the air pipe and the negative pressure cavities can be realized.

[0015] Optionally, the first joint is connected with an elastic member for resetting the first joint, the length direction of the elastic member is parallel to the sliding direction of the first joint, one end of the elastic member away from the first joint is connected with the base, and the first joint and the second joint are in the separated state when the elastic member is in the natural state.

[0016] By adopting the technical scheme, the elastic member resets the first joint after the completion of the crimping work, so that the first joint does not affect the switching of the fixed table.

[0017] Optionally, the fixed table is provided with an air vent connected with the negative pressure cavity, and a one-way valve is arranged at the air vent to limit the air to flow out of the negative pressure cavity.

[0018] By adopting the technical scheme, in the process that the pressing machine moves away from the fixed table, the volume of the telescopic cavity is reduced, a large amount of air enters the negative pressure cavity through the air pipe, the air pressure in the negative pressure cavity is increased, the air is discharged through the air inlet at a slow speed, and a certain resistance is formed for the resetting of the pressing machine. The air vent is arranged, in the process that the pressing machine moves towards the fixed table, the one-way valve limits the air to enter the negative pressure cavity, in the process that the pressing machine moves away from the fixed table, the air can be quickly discharged from the negative pressure cavity, the resetting resistance of the pressing machine is reduced, the pressing machine can be quickly reset, and the crimping efficiency is improved.

[0019] Optionally, the fixed table comprises a support table connected with the sliding rail and a movable table vertically and slidably connected to the support table, and a second threaded rod is rotationally connected to the support table to drive the movable table to slide.

[0020] By adopting the technical scheme, when the pillowcase is sleeved on or taken off the fixed table, the threaded rod can be rotated to drive the movable table to slide towards the support table to reduce the outer diameter of the fixed table, so that the pillowcase can be quickly fed and discharged; when the pillowcase needs to be crimped, the second threaded rod can be rotated to drive the movable table to slide away from the support table to increase the outer diameter of the fixed table, so that the pillowcase can be more stably fixed on the fixed table.

[0021] Optionally, the second threaded rod is coaxially fixedly connected with a horizontal bevel gear, a vertical bevel gear engaged with the horizontal bevel gear is rotatably connected to the support table, the rotation axis of the vertical bevel gear is horizontally arranged, the vertical bevel gear is coaxially fixedly connected with an adjusting gear, two adjusting racks are arranged on the base, the two adjusting racks are respectively arranged on the two sides of the pressing machine, and the two adjusting racks are both arranged on the path of the adjusting gear moving with the fixed table, the adjusting gear is engaged with the adjusting rack when passing the position of the adjusting rack, when the adjusting gear passes the position of the adjusting rack while the fixed table moves towards the pressing machine, the adjusting rack drives the adjusting gear to rotate towards the direction in which the driving movable table slides away from the support table, and when the adjusting gear passes the position of the adjusting rack while the fixed table moves away from the pressing machine, the adjusting rack drives the adjusting gear to rotate towards the direction in which the driving movable table slides towards the support table.

[0022] By adopting the above technical scheme, manual rotation of the second threaded rod is required when the outer diameter of the fixed table is adjusted, which consumes a certain amount of labor. The adjusting rack can drive the adjusting gear to rotate during the process in which the fixed table is close to the pressing machine after the pillowcase is completely sleeved on the fixed table, thereby driving the vertical bevel gear to rotate, the vertical bevel gear drives the horizontal bevel gear to rotate, thereby driving the second threaded rod to rotate, and the driving movable table slides away from the support table. After the crimping is completed, the adjusting rack drives the adjusting gear to rotate in the opposite direction during the process in which the fixed table moves away from the pressing machine, thereby driving the vertical bevel gear to rotate, the vertical bevel gear drives the horizontal bevel gear to rotate, thereby driving the second threaded rod to rotate, and the driving movable table slides towards the support table. The automatic adjustment of the outer diameter of the fixed table is realized, which helps to save labor.

[0023] In a second aspect, the application provides a process for crimping a denim fabric, which adopts the following technical scheme:

[0024] S1: sleeving the pillowcase soaked in the resin on the fixed table;

[0025] S2: sliding the fixed table sleeved with the pillowcase towards the pressing machine to the position directly below the pressing machine, when passing the adjusting rack, the adjusting rack is engaged with the adjusting gear and drives the adjusting gear to rotate, the second threaded rod drives the driving movable table to slide away from the support table, and the outer diameter of the fixed table is increased to fix the pillowcase;

[0026] S3: crimping the pillowcase, starting the pressing machine to slide towards the fixed table and press the crimped part of the pillowcase, and using high temperature to set the crinkle;

[0027] S4: sliding the fixed table after the crimping work is completed away from the pressing machine, when passing the adjusting rack, the adjusting rack is engaged with the adjusting gear and drives the adjusting gear to rotate, the second threaded rod drives the driving movable table to slide towards the support table, the outer diameter of the fixed table is reduced, the pillowcase is separated from the fixed table, and the discharging is completed.

[0028] To sum up, the present application includes at least one of the following beneficial technical effects:

[0029] 1. Before the pillowcase contacts the pressing machine, the worker's hand is separated from the pillowcase, the transmission rack rotating in the same direction as the pressing machine drives the transmission gear to rotate and in turn drives the first threaded rod to rotate, the rotating first threaded rod drives the piston to slide away from the bottom wall of the negative pressure cylinder, so that the negative pressure is generated in the telescopic cavity, the negative pressure cavity connected with the telescopic cavity through the air duct also generates negative pressure, under the action of the external atmospheric pressure, air continuously enters the negative pressure cavity through the air inlet hole, the airflow compresses the upper surface of the pillowcase on the fixed table, which helps to reduce the rebound degree of the wrinkles on the pillowcase and improve the pressing effect;

[0030] 2. When the pillowcase is set on the fixed table or taken off from the fixed table, the second threaded rod can be rotated to drive the movable table to slide towards the support table, so as to reduce the outer diameter of the fixed table, facilitating the rapid feeding and discharging of the pillowcase, when the pillowcase needs to be pressed, the second threaded rod can be rotated to drive the movable table to slide away from the support table, so as to increase the outer diameter of the fixed table, facilitating the pillowcase to be more stably fixed on the fixed table. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0032] Figure 2 is a schematic diagram of the internal structure of the telescopic cavity in the embodiment of the present application.

[0033] Figure 3 is a schematic diagram of the internal structure of the negative pressure cavity in the embodiment of the present application.

[0034] Figure 4 is Figure 1 is an enlarged schematic diagram of part A in

[0035] Figure 5 is Figure 3 is an enlarged schematic diagram of part B in

[0036] Reference signs: 1, base; 2, pressing machine; 21, transmission rack; 22, transmission rod; 221, guide inclined surface; 3, fixed table; 31, negative pressure cavity; 32, air inlet hole; 33, second joint; 34, air inlet; 341, one-way valve; 35, support table; 351, second threaded rod; 3511, horizontal bevel gear; 36, movable table; 37, vertical bevel gear; 371, adjusting gear; 4, negative pressure cylinder; 41, piston; 42, telescopic cavity; 5, air duct; 51, first joint; 511, elastic member; 52, air hose; 6, first threaded rod; 61, transmission gear; 7, sliding rail; 8, adjusting rack. DETAILED DESCRIPTION

[0037] The application is further described in detail below with reference to all the drawings.

[0038] The application discloses a jean fabric crimping device.

[0039] With reference to Figure 1 , Figure 2 and Figure 3 , a jean fabric crimping device and its crimping process, including a base 1, a pressing machine 2 and a fixing table 3 are installed on the base 1, during crimping, the pillowcase is fixed on the fixing table 3 and is crimped on the pillowcase, the pressing machine 2 is moved and presses the pillowcase, and the crimp is shaped by high temperature. Before the pressing machine 2 contacts the pillowcase, the hands of the staff need to be separated from the pillowcase, and the crimp on the pillowcase will rebound to a certain extent at this time, which affects the crimping effect. A negative pressure cavity 31 is arranged in the fixing table 3, and a plurality of air suction holes 32 are arranged on the upper surface of the fixing table 3, the air suction holes 32 are communicated with the negative pressure cavity 31, and the negative pressure cavity 31 can exchange air with the outside through the air suction holes 32. A negative pressure cylinder 4 is installed on the base 1, the negative pressure cylinder 4 is open on one side, and a piston 41 is slidably connected in the negative pressure cylinder 4, and a telescopic cavity 42 with a variable volume between the piston 41 and the bottom wall of the negative pressure cylinder 4 changes with the sliding of the piston 41. An air passage 5 is connected between the fixing table 3 and the negative pressure cylinder 4, the air passage 5 communicates the negative pressure cavity 31 and the telescopic cavity 42, a first threaded rod 6 is rotatably connected on the base 1, the first threaded rod 6 is threadedly connected with the piston 41, and a transmission gear 61 is coaxially and fixedly connected with the first threaded rod 6, a transmission rack 21 engaged with the transmission gear 61 is fixedly connected on the pressing machine 2, and the length direction of the transmission rack 21 is parallel to the moving direction of the pressing machine 2. During the movement of the pressing machine 2 to the fixing table 3, the transmission rack 21 drives the transmission gear 61 to rotate, and then drives the first threaded rod 6 to rotate, the first threaded rod 6 drives the piston 41 to slide away from the bottom wall of the negative pressure cylinder 4, the volume of the telescopic cavity 42 increases to generate negative pressure, and the negative pressure cavity 31 connected with the telescopic cavity 42 through the air passage 5 also generates negative pressure, and air continuously enters the negative pressure cavity 31 through the air suction holes 32. The airflow continuously presses the upper surface of the pillowcase on the fixing table 3, which helps to reduce the rebound degree of the crimp on the pillowcase and improve the crimping effect.

[0040] With reference to Figure 1 , the surface of the fixing table 3 close to the pressing machine 2 is an arc surface matched with the shape of the pillowcase after filling, the pillowcase can simulate the configuration when being filled during crimping, the workers can more intuitively obtain the effect after crimping when folding, the deviation of the folding work is avoided, and the quality of the crimping is improved.

[0041] With reference to Figure 2 and Figure 4, the pillowcase needs to be sleeved on the fixing table 3 before being crimped, and the pillowcase needs to be taken off from the fixing table 3 after being pressed and ironed, so the pressing and ironing machine 2 needs to be paused in the two processes, which affects the crimping efficiency to some extent. The base 1 is provided with horizontally arranged sliding rails 7, and the fixing table 3 is provided with a plurality of fixing tables 3 and is slidingly connected to the sliding rails 7, so that different fixing tables 3 can be aligned with the pressing and ironing machine 2 by sliding the fixing table 3. When the pressing and ironing machine 2 cooperates with the fixing table 3 directly below to crimp, other fixing tables 3 can simultaneously load and unload, and when a crimping work of a pillowcase is completed, other fixing tables 3 loaded with pillowcases can be quickly switched and crimping work can be continuously performed, which helps to improve the crimping efficiency. The air pipe 5 includes a first connector 51 and an air hose 52 which are connected to each other, and the end of the air hose 52 away from the first connector 51 is connected to the telescopic cavity 42. The fixed seat is provided with a second connector 33 connected to the negative pressure cavity 31, and the first connector 51 is connected to the second connector 33 on the fixing table 3 being crimped.

[0042] With reference to Figure 4 and Figure 5 , the staff needs to switch different second connectors 33 and connect them with the first connector 51 according to the switching of the fixing table 3, which increases the labor cost. The first connector 51 is slidingly connected to the base 1, and the sliding direction of the first connector 51 is perpendicular to the sliding direction of the fixing table 3. The pressing and ironing machine 2 is fixedly connected with a vertical transmission rod 22, and the end of the transmission rod 22 away from the pressing and ironing machine 2 is provided with a guide inclined surface 221. When the fixing table 3 slides to a position suitable for crimping work with the pressing and ironing machine 2, the pressing and ironing machine 2 moves towards the fixing table 3, the guide inclined surface 221 on the transmission rod 22 first contacts the first connector 51 and drives the first connector 51 to slide towards the fixing table 3, until the first connector 51 abuts against the second connector 33, at this time, the first connector 51 abuts against the side surface of the transmission rod 22, and the first connector 51 no longer slides, so that the switching of the fixing table 3 and the switching of the air pipe 5 and the negative pressure cavities 31 can be realized at the same time.

[0043] With reference to Figure 4 and Figure 5 , when the fixing table 3 slides, the second connector 33 moves with the first connector 51, and the first connector 51 may affect the movement of the second connector 33. The first connector 51 is connected with an elastic member 511 made of a spring, the length direction of the elastic member 511 is parallel to the sliding direction of the first connector 51, the end of the elastic member 511 away from the first connector 51 is connected to the base 1, and when the elastic member 511 is in a natural state, the first connector 51 and the second connector 33 are in a separated state. After a crimping work is completed, the elastic member 511 pulls the first connector 51 to reset, so that the first connector 51 does not affect the switching of the fixing table 3.

[0044] With reference to Figure 1、 Figure 2 And Figure 3 In the process of moving the pressing machine 2 away from the fixed table 3, the first threaded rod 6 drives the piston 41 to slide towards the bottom wall of the negative pressure cylinder 4, the volume of the telescopic cavity 42 is reduced, the air pressure is increased, a large amount of air enters the negative pressure cavity 31 through the air duct 5, the air pressure in the negative pressure cavity 31 is increased, and the air is discharged through the air inlet hole 32, but the air discharge speed is slow, which forms a certain resistance to the resetting of the pressing machine 2 and affects the resetting efficiency of the pressing machine 2. The fixed table 3 is provided with an air vent 34 which is communicated with the negative pressure cavity 31, and a one-way valve 341 is installed at the air vent 34 to limit the air to flow out of the negative pressure cavity 31 only. In the process of moving the pressing machine 2 towards the fixed table 3, the one-way valve 341 limits the air from entering the negative pressure cavity 31, and in the process of moving the pressing machine 2 away from the fixed table 3, the air can be quickly discharged from the negative pressure cavity 31, reducing the resistance of the pressing machine 2 to reset, which helps the pressing machine 2 to reset quickly and improves the pressing efficiency.

[0045] Referring to Figure 5 The fixed table 3 comprises a support table 35 and a movable table 36, the support table 35 is slidingly connected to the slide rail 7, and the movable table 36 is vertically slidingly connected above the support table 35. The distance between the movable table 36 and the support table 35 can be changed by sliding, so as to adjust the overall outer diameter of the fixed table 3. The support table 35 is rotatably connected with a second threaded rod 351, and the second threaded rod 351 is threadedly connected with the movable table 36. Before the pillowcase is sleeved on the fixed table 3 or taken off from the fixed table 3, the second threaded rod 351 can be rotated to drive the movable table 36 to slide towards the support table 35, so as to reduce the outer diameter of the fixed table 3, facilitating the rapid feeding and discharging of the pillowcase. Before the pillowcase is pressed, the second threaded rod 351 can be rotated to drive the movable table 36 to slide away from the support table 35, so as to increase the outer diameter of the fixed table 3, facilitating the pillowcase to be more stably fixed on the fixed table 3.

[0046] Referring to Figure 1 And Figure 5When the outer diameter of the fixing table 3 needs to be adjusted, the second threaded rod 351 needs to be manually rotated, which consumes labor and affects efficiency. The second threaded rod 351 is coaxially fixedly connected with a horizontal bevel gear 3511, the supporting table 35 is rotationally connected with a vertical bevel gear 37, the rotation axis of the vertical bevel gear 37 is horizontally arranged, and the vertical bevel gear 37 is engaged with the horizontal bevel gear 3511. The vertical bevel gear 37 is coaxially fixedly connected with an adjusting gear 371 on the side away from the horizontal bevel gear 3511, two adjusting racks 8 are mounted on the base 1, the two adjusting racks 8 are located on the two sides of the pressing machine 2 respectively, and the two adjusting racks 8 are located on the path of the adjusting gear 371 moving with the fixing table 3, and the adjusting gear 371 is engaged with the adjusting rack 8 when passing the position of the adjusting rack 8. During the process that the fixing table 3 moves towards the pressing machine 2 after the pillowcase is completely sleeved on the fixing table 3, the adjusting rack 8 drives the adjusting gear 371 to rotate, thereby driving the vertical bevel gear 37 to rotate, the vertical bevel gear 37 drives the horizontal bevel gear 3511 to rotate, thereby driving the second threaded rod 351 to rotate, and driving the movable table 36 to slide away from the supporting table 35; after the pressing and crimping are completed, during the process that the fixing table 3 moves away from the pressing machine 2, the adjusting rack 8 drives the adjusting gear 371 to rotate in the reverse direction, thereby driving the vertical bevel gear 37 to rotate, the vertical bevel gear 37 drives the horizontal bevel gear 3511 to rotate, thereby driving the second threaded rod 351 to rotate, and driving the movable table 36 to slide towards the supporting table 35. The automatic adjustment of the outer diameter of the fixing table 3 is realized, which is helpful to save labor.

[0047] The implementation principle of the embodiment of the application is as follows: during the process that the pressing machine 2 moves towards the fixing table 3, the transmission rack 21 moving in the same direction with the pressing machine 2 drives the transmission gear 61 to rotate, thereby driving the first threaded rod 6 to rotate, the first threaded rod 6 drives the piston 41 to slide away from the bottom wall of the negative pressure cylinder 4, the volume of the telescopic cavity 42 increases and negative pressure is generated, the telescopic cavity 42 is communicated with the negative pressure cavity 31 through the air duct 5, and negative pressure is also generated in the negative pressure cavity 31; under the action of the external atmospheric pressure, air enters the negative pressure cavity 31 through the air inlet hole 32. The air flowing from outside to inside continuously presses the upper surface of the pillowcase on the fixing table 3, which is helpful to reduce the rebound degree of the wrinkles on the pillowcase and improve the pressing and crimping effect.

[0048] The embodiment of the application also discloses a pressing and crimping process for a jean fabric, which adopts the following technical scheme:

[0049] S1: sleeving the pillowcase soaked in the resin on the fixing table 3;

[0050] S2: sliding the fixing table 3 with the sleeved pillowcase towards the pressing machine 2 to the position directly below the pressing machine 2, when passing the adjusting rack 8, the adjusting rack 8 is engaged with the adjusting gear 371 and drives the adjusting gear 371 to rotate, the second threaded rod 351 drives the movable table 36 to slide away from the supporting table 35, and the outer diameter of the fixing table 3 increases to fix the pillowcase.

[0051] S3: In the pillowcase creases, start the presser 2 to slide to the direction of the fixed table 3 and extrude the creases of the pillowcase, and use high temperature to set the creases;

[0052] S4: The fixed table 3 that completes the pressing work slides to the direction away from the presser 2, when passing through the adjusting rack 8, the adjusting rack 8 meshes with the adjusting gear 371 and drives the adjusting gear 371 to rotate, the second threaded rod 351 drives the movable table 36 to slide to the direction close to the support table 35, the outer diameter of the fixed table 3 is reduced, the pillowcase is separated from the fixed table 3, and the discharging is completed.

[0053] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A device for pressing and creasing denim fabric, comprising a base (1) provided with a pressing machine (2) for pressing and creasing denim fabric and a fixing table (3) for fixing a pillowcase, characterized in that: The fixed platform (3) is provided with a negative pressure cavity (31), and the upper surface of the fixed platform (3) is provided with a plurality of air suction holes (32) communicated with the negative pressure cavity (31); the base (1) is provided with a negative pressure cylinder (4) for generating negative pressure; the piston (41) is slidably connected in the negative pressure cylinder (4); the piston (41) and the bottom wall of the negative pressure cylinder (4) form an expansion cavity (42); the fixed platform (3) and the negative pressure cylinder (4) are connected with a ventilation pipeline (5) communicated with the negative pressure cavity (31) and the expansion cavity (42); the base (1) is rotatably connected with a first threaded rod (6) for driving the piston (41) to slide; the first threaded rod (6) is coaxially fixedly connected with a transmission gear (61); the pressing machine (2) is fixedly connected with a transmission rack (21) engaged with the transmission gear (61); the length direction of the transmission rack (21) is parallel to the moving direction of the pressing machine (2); when the pressing machine (2) moves towards the fixed platform (3), the first threaded rod (6) drives the piston (41) to slide away from the bottom wall of the negative pressure cylinder (4). The base (1) is provided with a horizontal slide rail (7), and the fixed platform (3) is provided with a plurality of slide rails (7) and is slidably connected to the slide rail (7); the ventilation pipeline (5) comprises a first connector (51) and a ventilation hose (52) communicated with the expansion cavity (42); the fixed platform (3) is provided with a second connector (33) communicated with the negative pressure cavity (31); the first connector (51) is movably connected with the second connector (33). The first connector (51) is slidably connected to the base (1), and the sliding direction of the first connector (51) is perpendicular to the sliding direction of the fixed platform (3); the pressing machine (2) is fixedly connected with a transmission rod (22), and the transmission rod (22) is provided with a guide inclined surface (221) at one end away from the pressing machine (2) for driving the first connector (51) to slide towards the fixed platform (3); when the first connector (51) abuts against the side surface of the transmission rod (22), the end of the first connector (51) away from the transmission rod abuts against and communicates with the second connector (33).

2. A denim pressing device as claimed in claim 1, wherein: The surface of the fixed platform (3) near the pressing machine (2) is an arc surface matching the shape of the filled pillow; the surface of the pressing machine (2) near the fixed platform (3) matches the fixed platform (3).

3. A denim pressing device as claimed in claim 1, wherein: The first connector (51) is connected with an elastic member (511) for resetting the first connector (51); the length direction of the elastic member (511) is parallel to the sliding direction of the first connector (51); one end of the elastic member (511) away from the first connector (51) is connected with the base (1); when the elastic member (511) is in a natural state, the first connector (51) and the second connector (33) are in a separated state.

4. The denim creasing device of claim 1, wherein: The fixed platform (3) is provided with a ventilation port (34) communicated with the negative pressure cavity (31); the ventilation port (34) is provided with a one-way valve (341) for limiting air to flow out of the negative pressure cavity (31) only.

5. The denim creasing device of claim 1, wherein: The fixed table (3) comprises a support table (35) connected with the slide rail (7) and a movable table (36) vertically and slidably connected with the support table (35), and a second threaded rod (351) is rotatably connected with the support table (35) and used for driving the movable table (36) to slide.

6. A denim creasing device according to claim 5, wherein: The second threaded rod (351) is coaxially and fixedly connected with a horizontal bevel gear (3511), the support table (35) is rotatably connected with a vertical bevel gear (37) engaged with the horizontal bevel gear (3511), the rotation axis of the vertical bevel gear (37) is horizontally arranged, the vertical bevel gear (37) is coaxially and fixedly connected with an adjusting gear (371), two adjusting racks (8) are arranged on the base (1), the two adjusting racks (8) are respectively arranged on the two sides of the pressing machine (2), and the two adjusting racks (8) are arranged on the path of the adjusting gear (371) moving with the fixed table (3), the adjusting gear (371) is engaged with the adjusting rack (8) when passing the position of the adjusting rack (8), when the adjusting gear (371) passes the position of the adjusting rack (8) with the fixed table (3) moving towards the pressing machine (2), the adjusting rack (8) drives the adjusting gear (371) to rotate towards the direction in which the movable table (36) slides away from the support table (35), and when the adjusting gear (371) passes the position of the adjusting rack (8) with the fixed table (3) moving away from the pressing machine (2), the adjusting rack (8) drives the adjusting gear (371) to rotate towards the direction in which the movable table (36) slides towards the support table (35).

7. A jean fabric pressing process, comprising the jean fabric pressing device of any one of claims 1-6. The process comprises the following steps: S1: wrapping the pillowcase soaked with the resin on the fixed table (3); S2: sliding the fixed table (3) with the wrapped pillowcase towards the pressing machine (2) to the position directly below the pressing machine (2), when passing the adjusting rack (8), the adjusting rack (8) is engaged with the adjusting gear (371) and drives the adjusting gear (371) to rotate, the second threaded rod (351) drives the movable table (36) to slide away from the support table (35), and the outer diameter of the fixed table (3) is increased to fix the pillowcase; S3: folding the pillowcase, starting the pressing machine (2) to slide towards the fixed table (3) and press the folded part of the pillowcase, and using high temperature to fix the fold; S4: sliding the fixed table (3) with the completed pressing work away from the pressing machine (2), when passing the adjusting rack (8), the adjusting rack (8) is engaged with the adjusting gear (371) and drives the adjusting gear (371) to rotate, the second threaded rod (351) drives the movable table (36) to slide towards the support table (35), and the outer diameter of the fixed table (3) is reduced to separate the pillowcase from the fixed table (3) and complete the discharging.

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