CN210238075U - Preshrinking machine is used in flax cotton material production - Google Patents

Abstract

The utility model provides a preshrinking machine for flax cotton material production, which comprises a supporting base, a supporting upright post, a control box, a control motor, a connecting shaft, an adjustable cloth guide barrel structure, a shaping preshrinking roller structure, an exhaust hood, a cross rod, an exhaust fan, an air outlet pipe, a rotary bearing, an auxiliary roller and an auxiliary roller, wherein the supporting upright post is respectively bolted on the left side and the right side of the upper surface of the supporting base; the control box is connected with the middle position of the lower part of the front surface of the supporting upright column arranged on the right side through a screw; and the control motor is connected with the right upper part of the front surface of the support upright column arranged on the right side through a screw. The arrangement of the protective baffle and the locking bolt of the utility model is beneficial to adjusting the left and right width according to the size of the flax cotton cloth roll, and plays the role of stopping and limiting; the arrangement of the cloth guide motor and the cloth guide rotating shaft is favorable for the cloth guide effect, and the flax cotton cloth roll can be unfolded to facilitate the preshrinking operation.

Description

Preshrinking machine is used in flax cotton material production

Technical Field

The utility model belongs to the technical field of surface fabric machinery, especially, relate to a flax cotton material production is with preshrinking machine.

Background

The preshrinking machine for the fabric is used for improving the weaving shrinkage state of warp yarns in the fabric by using mechanical and physical methods, namely increasing the weft density and warp weaving shrinkage of the fabric to a certain degree to enable the fabric to have a loose structure. After finishing, the fabric has small dry setting deformation, and when the wetted fiber swells, the fabric does not shorten the length because enough space is left between warps and wefts. In effect, that is, to allow the latent shrinkage that was originally present, it is pre-retracted prior to finishing, thereby solving or improving the problem of warp shrinkage of the fabric. However, the existing fabric pre-shrinking machine has a simple structure and relatively single function, and cannot meet the use requirement.

The flax is also called as the yama or the flax, and is divided into three types of fiber and oil which are annual herbaceous plants. The clothing is one of the main fiber raw materials of the spring and summer clothing because of good moisture absorption, fast moisture conduction and relatively thin diameter. In general, a cloth woven from flax fibers is referred to as a flax fabric. Flax fibers exist in bast tissues of flax stems, part of colloid is removed through retting, soaking and degumming, so that part of adhered fiber bundles are loosened, and then the flax fibers are processed into 'beating-to-hemp' through rolling and beating-to-hemp, namely process fibers consisting of 10-20 single fibers. After the fiber is harvested by flax, the fiber is bundled into small bundles to be retted and degummed. The temperature of warm water retting hemp is preferably controlled between 28-32 ℃, the hemp is fished out after about 100 hours, the hemp stems are put into an umbrella shape, and the hemp stems are dried in the open air. The rain and dew retting is to spread the harvested hemp stems on the grassland or the flax ground, drench and soak in the rain and dew, and ferment and rett by utilizing mould. And (3) smashing the retted dry stems 7-10 days later under the condition of proper humidity, removing xylem and impurities, carding fibers, and grading according to the quality. The beaten short ramie is called secondary coarse ramie.

The invention discloses a fabric pre-shrinking machine which is CN205529515U and comprises a machine body, a feeding hole and a discharging hole which are respectively arranged at two sides of the machine body, wherein a pre-shrinking mechanism is arranged in the machine body and comprises a heating roller, a pressing roller and a tightening roller, a woolen blanket is wound among the heating roller, the pressing roller and the tightening roller, a humidifier and a sterilizing device are further arranged in the machine body, an exhaust pipe is arranged at the top of the machine body, an air suction pump is arranged on the exhaust pipe, a purifying device is arranged on the air suction pump and comprises a tank body, a water inlet pipe and a water outlet pipe, an air outlet hole is arranged at the top of the tank body, a nozzle is arranged below the air outlet hole and connected with a water inlet pipe, and a water outlet pipe is arranged at. However, the pre-shrinking machine for producing the flax cotton material also has the problems that the cloth guiding can not be adjusted according to the size of a flax cotton material cloth roll, the shaping and heating functions are lacked, and the steam generated in the pre-shrinking process is inconvenient to discharge.

Therefore, the invention of the pre-shrinking machine for producing the flax cotton material is very necessary.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a flax cotton production is with preshrinking machine to solve current flax cotton production with preshrinking machine and can not adjust according to the size of flax cotton yardage roll and lead cloth, lack the function of design heating and inconvenient steam to preshrinking the process production and carry out the problem of discharging. A preshrinking machine for producing flax cotton materials comprises a supporting base, supporting stand columns, a control box, a control motor, a connecting shaft, an adjustable cloth guide barrel structure, a shaping preshrinking roller structure, an exhaust hood, a cross rod, an exhaust fan, an air outlet pipe, a rotary bearing, an auxiliary roller and auxiliary rolling shafts, wherein the supporting stand columns are respectively bolted on the left side and the right side of the upper surface of the supporting base; the control box is connected with the middle position of the lower part of the front surface of the supporting upright column arranged on the right side through a screw; the control motor is connected with the right upper part of the front surface of the support upright column arranged on the right side through a screw; the connecting shaft coupler is connected to an output shaft of the control motor; the adjustable cloth guide cylinder structure is arranged in front of the upper surface of the support base; the shaping pre-shrinking roller structure is arranged between the supporting upright post and the upper part of the supporting upright post; the exhaust hood is connected to the upper surface of the support upright post through screws; the transverse rod is connected with the upper side of the vertical section of the air outlet pipe through a transverse screw; the exhaust fan is connected to the middle position of the lower surface of the cross rod through a screw; the air outlet pipe is connected with the middle position of the upper surface of the exhaust hood through a screw; the rotary bearing is embedded in the lower side position inside the supporting upright post; the auxiliary roller is sleeved in the middle of the outer surface of the auxiliary roller; the auxiliary rolling shaft is transversely inserted into the inner ring of the rotary bearing; the adjustable cloth guide cylinder structure comprises a cloth guide motor, a first bearing, a rubber supporting block, a protective baffle, a cloth guide rotating shaft, a second bearing and a locking bolt, wherein the first bearing is sleeved on the right side of the outer surface of the cloth guide rotating shaft; the rubber supporting block is glued to the lower surface of the protective baffle; the protective baffles are respectively sleeved on the left side and the right side of the outer surface of the cloth guide rotating shaft; the outer surface coupler of the cloth guide rotating shaft is connected to the output shaft of the cloth guide motor; the second bearing is sleeved at the left side position of the outer surface of the cloth guide rotating shaft; the locking bolt is in threaded connection with the intersection of the protective baffle and the cloth guide rotating shaft, and the locking bolt is in threaded connection with the middle of the lower part of the front surface of the protective baffle.

Preferably, the shaping pre-shrinking roller structure comprises a pre-shrinking roller, a pre-shrinking rotating shaft, a heating wire, a fixed iron nail row, a supporting seat, a thermometer and a driving bearing, wherein the pre-shrinking rotating shaft is respectively bolted at the middle positions of the left side and the right side of the pre-shrinking roller; the heating wires are respectively connected to the upper side and the lower side of the interior of the pre-shrinking roller by transverse screws; the fixed iron nail rows are respectively connected to the left side and the right side of the front surface of the pre-shrinking roller through screws; the driving bearings are respectively embedded in the upper side positions inside the supporting seats; the thermometer screw is connected to the middle position of the right side of the front surface of the pre-shrinking roller.

Preferably, the auxiliary roller is in interference fit with an inner ring of the rotary bearing.

Preferably, the cloth guide rotating shaft is arranged on the front side of the auxiliary roller; the distance between the cloth guide rotating shaft and the auxiliary roller is set between five centimeters and ten centimeters.

Preferably, the protective baffle is arranged at the inner side of the first bearing; the cloth guide motor is connected with the supporting base through bolts.

Preferably, the cloth guide rotating shaft is respectively arranged with the inner rings of the first bearing and the second bearing in an interference fit manner; the lower parts of the first bearing and the second bearing are welded with stainless steel supporting blocks, and the stainless steel supporting blocks are connected with the supporting base through bolts.

Preferably, the pre-shrinking rotating shaft is inserted into an inner ring of the driving bearing; the pre-shrinking rotating shaft is in interference fit with an inner ring of the driving bearing; the pre-shrinking rotating shaft arranged on the right side is connected with a connecting shaft coupler.

Preferably, the supporting seat is connected with the supporting upright post through a bolt; the heating wire is specifically made of stainless steel wires; the heating wire is provided with two heating wires.

Preferably, the air outlet pipe is communicated with the inside of the exhaust hood.

Preferably, the air outlet pipe is an L-shaped aluminum alloy pipe; the diameter of the air outlet pipe is set between thirty centimeters and forty centimeters.

Preferably, the control motor, the exhaust fan and the cloth guide motor are respectively and electrically connected with the control box; the control motor and the cloth guide motor are respectively a motor with the model number of M1418ZXF500W 48V; the exhaust fan is a fan with the model number of FJ-1220; the thermometer is a WSS-411 thermometer.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, guard flap and locking bolt's setting, be favorable to carrying out the regulation of controlling the width according to the size of flax cotton cloth yardage roll, play and block spacing effect.

2. The utility model discloses in, the setting of leading cloth motor and leading cloth pivot, be favorable to leading the effect of cloth, can expand flax cotton yardage roll, the operation that conveniently contracts in advance goes on.

3. The utility model discloses in, the heater strip be provided with two, be favorable to playing the effect of heating, improve the efficiency of preshrinking.

4. The utility model discloses in, the setting of thermometer be favorable to carrying out real-time control to the temperature of the cylinder that contracts in advance, guarantee to contract effectively going on of operation in advance.

5. The utility model discloses in, the setting of fixed iron nail row be favorable to playing the effect of fixed design, prevent to reduce falling of in-process flax cotton material cloth in advance.

6. The utility model discloses in, the exhaust hood, the setting of exhaust fan and tuber pipe is favorable to discharging the hot steam that contracts the in-process in advance and produce, maintains good operational environment.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the adjustable cloth guide tube structure of the present invention.

Fig. 3 is a schematic structural view of the shaping pre-shrinking roller structure of the present invention.

In the figure:

1. a support base; 2. supporting the upright post; 3. a control box; 4. controlling the motor; 5. a connecting shaft; 6. the structure of the cloth guide cylinder can be adjusted; 61. a cloth guide motor; 62. a first bearing; 63. a rubber support block; 64. a protective baffle; 65. a cloth guide rotating shaft; 66. a second bearing; 67. locking the bolt; 7. shaping a pre-shrinking roller structure; 71. pre-shrinking a roller; 72. pre-shrinking the rotating shaft; 73. heating wires; 74. fixing the iron nail row; 75. a supporting seat; 76. a thermometer; 77. a drive bearing; 8. an exhaust hood; 9. a cross bar; 10. an exhaust fan; 11. an air outlet pipe; 12. a rotating bearing; 13. an auxiliary drum; 14. an auxiliary roller.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

example (b):

as shown in fig. 1 to 2, the utility model provides a preshrinking machine for flax cotton production, which comprises a supporting base 1, a supporting upright post 2, a control box 3, a control motor 4, a connecting shaft 5, an adjustable cloth guide cylinder structure 6, a shaping preshrinking roller structure 7, an exhaust hood 8, a cross rod 9, an exhaust fan 10, an air outlet pipe 11, a rotary bearing 12, an auxiliary roller 13 and an auxiliary roller 14, wherein the supporting upright post 2 is respectively bolted on the left side and the right side of the upper surface of the supporting base 1; the control box 3 is connected with the middle position of the lower part of the front surface of the supporting upright post 2 arranged on the right side through a screw; the control motor 4 is connected with the right upper part of the front surface of the support upright post 2 arranged on the right side through a screw; the coupling of the connecting shaft 5 is connected to the output shaft of the control motor 4; the adjustable cloth guide cylinder structure 6 is arranged in front of the upper surface of the support base 1; the shaping pre-shrinking roller structure 7 is arranged between the supporting upright post 2 and the upper part of the supporting upright post 2; the exhaust hood 8 is connected to the upper surface of the support upright post 2 through screws; the cross rod 9 is transversely screwed at the upper side inside the vertical section of the air outlet pipe 11; the exhaust fan 10 is connected to the middle position of the lower surface of the cross rod 9 through a screw; the air outlet pipe 11 is connected to the middle position of the upper surface of the exhaust hood 8 through a screw, and the exhaust fan 10 is started through the control box 3 to discharge hot steam and waste chips generated in the pre-shrinking process to a specified position from the air outlet pipe 11; the rotary bearing 12 is embedded in the lower side position inside the supporting upright post 2; the auxiliary roller 13 is sleeved in the middle of the outer surface of the auxiliary roller 14; the auxiliary rolling shaft 14 is transversely inserted into an inner ring of the rotary bearing 12; the adjustable cloth guide cylinder structure 6 comprises a cloth guide motor 61, a first bearing 62, a rubber supporting block 63, a protective baffle 64, a cloth guide rotating shaft 65, a second bearing 66 and a locking bolt 67, wherein the first bearing 62 is sleeved on the right side of the outer surface of the cloth guide rotating shaft 65; the rubber supporting block 63 is glued to the lower surface of the protective baffle 64; the protective baffles 64 are respectively sleeved on the left side and the right side of the outer surface of the cloth guide rotating shaft 65; the outer surface coupling of the cloth guide rotating shaft 65 is connected to the output shaft of the cloth guide motor 61; the second bearing 66 is sleeved at the left position of the outer surface of the cloth guide rotating shaft 65; the locking bolt 67 threaded connection at the crossing department of guard shield 64 and cloth guide rotating shaft 65, the locking bolt 67 threaded connection at the positive surface lower part intermediate position of guard shield 64 through control box 3 start cloth guide motor 61 drive cloth guide rotating shaft 65 at first bearing 62 and second bearing 66 internal rotation to drive flax cotton material yardage roll and supplementary cylinder 13 before rotate, thereby make supplementary roller 14 at swivel bearing 12 internal rotation, thereby launch flax cotton material yardage roll.

As shown in fig. 3, in the above embodiment, specifically, the fixed pre-shrinking roller structure 7 includes a pre-shrinking roller 71, a pre-shrinking rotating shaft 72, a heating wire 73, a fixed iron nail row 74, a supporting seat 75, a thermometer 76 and a driving bearing 77, wherein the pre-shrinking rotating shaft 72 is respectively bolted at the middle positions of the left side and the right side of the pre-shrinking roller 71; the heating wires 73 are respectively connected to the upper side and the lower side of the inside of the pre-shrinking roller 71 through transverse screws; the fixed iron nail rows 74 are respectively connected to the left side and the right side of the front surface of the pre-shrinking roller 71 through screws; the driving bearings 77 are respectively embedded in the upper positions inside the supporting seats 75; the thermometer 76 is connected to the middle position of the right side of the front surface of the pre-shrinking roller 71 through a screw, so that the real-time monitoring of the temperature of the pre-shrinking roller 71 is facilitated, and the effective pre-shrinking operation is ensured; the control motor 4 and the heating wire 73 are started through the control box 3 to play a role of heating and pre-shrinking, the control motor 4 drives the pre-shrinking rotating shaft 72 to rotate in the driving bearing 77 to drive the linen cotton cloth and the pre-shrinking roller 71 to rotate together, and when the linen cotton cloth rotates to the lower part of the rear surface of the pre-shrinking roller 71, the linen cotton cloth falls into the cloth receiving container from the fixed iron nail row 74 under the action of gravity.

In the above embodiment, specifically, the auxiliary roller 14 is disposed in an interference fit with the inner ring of the rotary bearing 12.

In the above embodiment, specifically, the cloth guide rotating shaft 65 is disposed at the front side of the auxiliary drum 13; the distance between the cloth guide rotating shaft 65 and the auxiliary roller 13 is set between five centimeters and ten centimeters; the flax cotton cloth roll is placed between the cloth guide rotating shaft 65 and the auxiliary roller 13, and the locking bolt 67 is loosened to adjust the distance between the protective baffle 64 and the protective baffle 64, so that the limiting and blocking effects are achieved.

In the above embodiment, specifically, the guard baffle 64 is disposed inside the first bearing 62; the cloth guide motor 61 is connected with the support base 1 through bolts.

In the above embodiment, specifically, the cloth guide rotating shaft 65 is respectively disposed in interference fit with the inner rings of the first bearing 62 and the second bearing 66; stainless steel supporting blocks are welded to the lower portions of the first bearing 62 and the second bearing 66 and are connected with the supporting base 1 through bolts.

In the above embodiment, specifically, the pre-shrinking rotating shaft 72 is inserted into the inner ring of the driving bearing 77; the pre-shrinking rotating shaft 72 is in interference fit with an inner ring of a driving bearing 77; the pre-shrinking rotating shaft 72 arranged on the right side is in coupling connection with the connecting shaft 5.

In the above embodiment, specifically, the supporting seat 75 is connected to the supporting column 2 by bolts; the heating wire 73 is made of stainless steel wire; the heating wire 73 is provided with two heating wires.

In the above embodiment, specifically, the air outlet pipe 11 is communicated with the inside of the exhaust hood 8.

In the above embodiment, specifically, the air outlet pipe 11 specifically adopts an L-shaped aluminum alloy pipe; the diameter of the air outlet pipe 11 is set between thirty centimeters and forty centimeters.

In the above embodiment, specifically, the control motor 4, the exhaust fan 10 and the cloth guide motor 61 are respectively electrically connected to the control box 3; the control motor 4 and the cloth guide motor 61 are respectively a motor with the model number of M1418ZXF500W 48V; the exhaust fan 10 is a fan with model number FJ-1220; the thermometer 76 is a WSS-411 thermometer.

Principle of operation

When the utility model is used, the flax cotton cloth roll is placed between the cloth guide rotating shaft 65 and the auxiliary roller 13, and the locking bolt 67 is loosened to adjust the distance between the protective baffle 64 and the protective baffle 64, so as to play the role of limiting and blocking; one end of the linen cotton cloth is hung on the outer surface of the fixed iron nail row 74, the cloth guide motor 61 is started through the control box 3 to drive the cloth guide rotating shaft 65 to rotate in the first bearing 62 and the second bearing 66, so that the linen cotton cloth roll and the auxiliary roller 13 are driven to rotate in front, the auxiliary roller 14 rotates in the rotating bearing 12, the linen cotton cloth roll is unfolded, the control box 3 is started to drive the control motor 4 and the heating wire 73 to perform the function of heating and preshrinking, the control motor 4 drives the preshrinking rotating shaft 72 to rotate in the driving bearing 77, the linen cotton cloth and the preshrinking roller 71 are driven to rotate together, and when the linen cotton cloth is rotated to the lower part of the rear surface of the preshrinking roller 71, the linen cotton cloth falls into the cloth receiving container from the fixed iron nail row 74 under the action of gravity; in the pre-shrinking process, the exhaust fan 10 is started through the control box 3 to discharge hot steam and waste chips generated in the pre-shrinking process to a specified position from the air outlet pipe 11.

Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims (10)

1. The preshrinking machine for producing flax cotton materials is characterized by comprising a supporting base (1), supporting stand columns (2), a control box (3), a control motor (4), a connecting shaft (5), an adjustable cloth guide cylinder structure (6), a sizing preshrinking roller structure (7), an exhaust hood (8), a cross rod (9), an exhaust fan (10), an air outlet pipe (11), a rotary bearing (12), an auxiliary roller (13) and an auxiliary roller (14), wherein the supporting stand columns (2) are respectively connected to the left side and the right side of the upper surface of the supporting base (1) through bolts; the control box (3) is connected to the middle position of the lower part of the front surface of the supporting upright post (2) arranged on the right side through a screw; the control motor (4) is in screw connection with the right upper position of the front surface of the support upright post (2) arranged on the right side; the coupling of the connecting shaft (5) is connected to the output shaft of the control motor (4); the adjustable cloth guide cylinder structure (6) is arranged in front of the upper surface of the support base (1); the shaping pre-shrinking roller structure (7) is arranged between the supporting upright post (2) and the upper part of the supporting upright post (2); the exhaust hood (8) is connected to the upper surface of the support upright post (2) through screws; the cross rod (9) is transversely screwed at the upper position inside the vertical section of the air outlet pipe (11); the exhaust fan (10) is connected to the middle position of the lower surface of the cross rod (9) through a screw; the air outlet pipe (11) is connected to the middle position of the upper surface of the exhaust hood (8) through a screw; the rotary bearing (12) is embedded in the lower side position inside the supporting upright post (2); the auxiliary roller (13) is sleeved in the middle position of the outer surface of the auxiliary roller (14); the auxiliary rolling shaft (14) is transversely inserted into an inner ring of the rotary bearing (12); the adjustable cloth guide cylinder structure (6) comprises a cloth guide motor (61), a first bearing (62), a rubber supporting block (63), a protective baffle plate (64), a cloth guide rotating shaft (65), a second bearing (66) and a locking bolt (67), wherein the first bearing (62) is sleeved on the right side of the outer surface of the cloth guide rotating shaft (65); the rubber supporting block (63) is glued to the lower surface of the protective baffle (64); the protective baffles (64) are respectively sleeved on the left side and the right side of the outer surface of the cloth guide rotating shaft (65); the outer surface coupling of the cloth guide rotating shaft (65) is connected to the output shaft of the cloth guide motor (61); the second bearing (66) is sleeved at the left position of the outer surface of the cloth guide rotating shaft (65); the locking bolt (67) is in threaded connection with the intersection of the protective baffle (64) and the cloth guide rotating shaft (65), and the locking bolt (67) is in threaded connection with the middle position of the lower part of the front surface of the protective baffle (64).

2. The preshrinking machine for producing the flax cotton material as claimed in claim 1, wherein said sizing preshrinking roller structure (7) comprises a preshrinking roller (71), a preshrinking rotating shaft (72), a heating wire (73), a fixed iron nail row (74), a supporting seat (75), a thermometer (76) and a driving bearing (77), wherein said preshrinking rotating shaft (72) is respectively bolted at the middle positions of the left side and the right side of the preshrinking roller (71); the heating wires (73) are respectively connected to the upper side and the lower side of the inside of the pre-shrinking roller (71) through transverse screws; the fixed iron nail rows (74) are respectively connected to the left side and the right side of the front surface of the pre-shrinking roller (71) through screws; the driving bearings (77) are respectively embedded in the upper side positions inside the supporting seats (75); the thermometer (76) is connected to the middle position of the right side of the front surface of the pre-shrinking roller (71) through screws.

3. The pre-shrinking machine for flax cotton production as claimed in claim 1, characterized in that the auxiliary roller (14) is arranged in interference fit with the inner ring of the rotating bearing (12).

4. The preshrinking machine for the production of flax cotton material as claimed in claim 1, characterized in that said cloth-guiding rotating shaft (65) is arranged at the front side of the auxiliary roller (13); the distance between the cloth guide rotating shaft (65) and the auxiliary roller (13) is set between five centimeters and ten centimeters.

5. The flax cotton production preshrinking machine as claimed in claim 1, characterized in that the protective baffle (64) is arranged inside the first bearing (62); the cloth guide motor (61) is connected with the supporting base (1) through bolts.

6. The preshrinking machine for flax cotton material production as claimed in claim 1, wherein said cloth guide rotating shaft (65) is respectively arranged with interference fit with the inner rings of the first bearing (62) and the second bearing (66); the stainless steel support block is welded to the lower portions of the first bearing (62) and the second bearing (66) and is connected with the support base (1) through bolts.

7. The preshrinking machine for flax and cotton material production as claimed in claim 2, wherein said preshrinking shaft (72) is inserted into the inner ring of the driving bearing (77); the pre-shrinking rotating shaft (72) is in interference fit with an inner ring of the driving bearing (77); the pre-shrinking rotating shaft (72) arranged on the right side is in coupling connection with the connecting shaft (5).

8. The preshrinking machine for flax cotton material production as claimed in claim 2, wherein said supporting seat (75) is bolted to the supporting column (2); the heating wire (73) is made of stainless steel wires; two heating wires (73) are arranged.

9. The preshrinking machine for flax and cotton material production as claimed in claim 2, wherein said air outlet pipe (11) is communicated with the inside of the exhaust hood (8).

10. The preshrinking machine for flax and cotton production as claimed in claim 1, wherein said air outlet pipe (11) is made of L-shaped aluminum alloy pipe; the diameter of the air outlet pipe (11) is set between thirty centimeters and forty centimeters.

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