CN210194229U

CN210194229U - Combing machine

Info

Publication number: CN210194229U
Application number: CN201920299949.4U
Authority: CN
Inventors: Baiming Shen; 沈柏明
Original assignee: Tongxiang Qianjin Textile Co Ltd
Current assignee: Tongxiang Qianjin Textile Co Ltd
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2020-03-27
Anticipated expiration: 2029-03-11

Abstract

The utility model discloses a combing machine, the load simulator comprises a case, the relative inner wall of machine case is equipped with feed mechanism, carding mechanism and winding mechanism, feed mechanism and winding mechanism are connected with actuating mechanism jointly, actuating mechanism includes motor, fixed mounting in the support frame and the rotating turret of box inner wall one side, motor fixed mounting is in quick-witted outside of the case, the output shaft of motor passes quick-witted case rotation and is connected with the main driving medium, the main driving medium rotates to be connected in the rotating turret, the both ends of rotating turret rotate respectively and are connected with first driven driving medium and second from the driving medium, first driven driving medium rotates through first dwang and is connected with first feeding frame, the second is rotated through the second dwang from the driving medium and is connected with first rolling frame, carding mechanism is located between feed mechanism and the winding mechanism. The utility model discloses it is rational in infrastructure, have the advantage of guaranteeing that feed mechanism and winding mechanism speed are unanimous.

Description

Combing machine

Technical Field

The utility model relates to the technical field of weaving, in particular to comber.

Background

The comber removes impurities and short and thick fibers in cotton, wool and silk fibers before processing the fibers into fabrics, and the fabrics obtained by the process are greatly improved in texture, washability and durability compared with the combed fabrics, so that the comber is widely applied to the textile industry.

The existing combing machine has the following problems that a feeding mechanism and a winding mechanism of the combing machine are driven by two driving devices, the speed is not accurately controlled, the feeding speed and the winding speed are not consistent when the combing machine operates, when the winding speed is higher than the feeding speed, fabric breakage is easily caused, and when the feeding speed is higher than the winding speed, the fabric accumulation and blockage are easily caused in the combing machine.

In view of the above technical problems, a new solution is yet to be proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a comber has the advantage of guaranteeing that feed mechanism and winding mechanism speed are unanimous.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a combing machine comprises a machine case, wherein a feeding mechanism, a combing mechanism and a rolling mechanism are arranged on the opposite inner walls of the machine case, the feeding mechanism and the rolling mechanism are connected with a driving mechanism together, the driving mechanism comprises a motor, a supporting frame and a rotating frame, the supporting frame and the rotating frame are fixedly arranged on one side of the inner wall of the machine case, the motor is fixedly arranged outside the machine case, an output shaft of the motor penetrates through the machine case to be rotatably connected with a main transmission piece, the main transmission piece is rotatably connected with the rotating frame, the rotating frame is arranged between the supporting frame and the inner wall of the machine case, two ends of the rotating frame are respectively rotatably connected with a first driven transmission piece and a second driven transmission piece, the first driven transmission piece is rotatably connected with a first rotating rod, the first rotating rod penetrates through the supporting frame to be rotatably connected with a first feeding frame, the inner wall of the machine case opposite to the first, the second driven transmission part is rotatably connected with a second rotating rod, the second rotating rod penetrates through the support frame and is rotatably connected with a first winding frame, the inner wall of the box body opposite to the first winding frame is rotatably connected with a second winding frame, the winding mechanism is fixedly and detachably mounted between the first winding frame and the second winding frame, and the carding mechanism is located between the feeding mechanism and the winding mechanism.

Adopt above-mentioned technical scheme, through the rotation of motor, drive the main driving medium and rotate, thereby make the rotating turret be circular motion, the first driven driving medium and the second that indirectly drive the rotating turret both ends are followed the driving medium and are also made circular motion, just can rotate with the first dwang that first driven driving medium is connected and the second that is connected from the driving medium with the second, thereby drive first feeding frame and first rolling frame and rotate simultaneously, ensure its rotational speed unanimous, the problem of the fabric fracture or fabric jam because the speed difference leads to has been stopped.

Preferably, the carding mechanism comprises an upper carding part and a lower carding part, the upper carding part is fixedly mounted on the inner wall of the top of the case, sleeve seats are respectively arranged on two sides of the lower carding part, an air cylinder is arranged below each sleeve seat, a telescopic rod of the air cylinder is sleeved in each sleeve seat, the upper carding part and the lower carding part are identical in structure and respectively comprise a top plate, a plurality of carding needles and a cleaning film, the carding needles are fixedly arranged on the top plate and are perpendicular to the top plate, and the cleaning film penetrates through the surfaces of the top plates and the carding needles.

Adopt above-mentioned technical scheme, the fabric passes through to comb the portion and comb down between the portion, make the upper and lower surface of fabric and inside can both comb under the effect of combing the needle, the quality of combing has been guaranteed, but owing to comb and can produce the batting, the batting can be accumulated between combing the needle, not good clearance, can reduce the lower portion of combing of below through the cylinder at this moment, pull open the distance of combing the portion under and combing the portion on and, then lift the clearance membrane and make it break away from and comb the needle, bring out the batting, and is simple and convenient.

Preferably, two compression rollers are arranged between the feeding mechanism and the carding mechanism and between the carding mechanism and the winding mechanism, a semicircular sleeve is connected to the upper portion of the compression roller in a rotating mode, the tops of two ends of the semicircular sleeve are respectively connected with a T-shaped fixing rod, the top of the fixing rod is fixed to the outer wall of the top of the case, a spring is arranged on the fixing rod in a penetrating mode, a fixing sleeve larger than the diameter of the spring is arranged at the upper end of the spring, the spring is abutted to the bottom end of the fixing sleeve, the side wall of the fixing sleeve is fixedly installed on the inner wall of the case, and the compression roller located below is connected.

By adopting the technical scheme, because the thicknesses of different fabrics are not easy, the compression roller positioned above can adapt to the change of the thickness of the fabrics by utilizing the compression elastic potential energy of the spring, and can play a role in compressing the fabrics, and the compression force is always kept in the fabric conveying process.

As preferred, first feeding frame is including frame, semicircle flip rotates to be connected in frame, semicircle flip's inside is equipped with inserted bar one, frame is equipped with inserted bar two with the relative department of inserted bar one, semicircle flip all is equipped with the fixed plate with the frame department that corresponds with it, be equipped with fixedly connected with plum blossom screw on the fixed plate.

By adopting the technical scheme, the purpose of fixing and dismounting the feeding mechanism and the first feeding frame is realized, and a worker can conveniently install the combed fabric wound into a roller on the first feeding frame so as to realize the purpose of rotary feeding.

Preferably, the feeding mechanism comprises a feeding roller, two ends of the feeding roller are respectively provided with a first insertion hole and a second insertion hole, the first insertion rod is inserted into the first insertion hole, and the second insertion rod is inserted into the second insertion hole.

By adopting the technical scheme, the first jack, the second jack, the first inserted link and the second inserted link are mutually inserted, so that the feeding roller and the first feeding frame can be fixed, and the phenomenon that the feeding roller shakes rather than rotates is avoided.

Preferably, the second feeding rack, the first winding rack and the second winding rack have the same structure as the first feeding rack.

By adopting the technical scheme, the unification of the operation is realized.

Preferably, the winding mechanism comprises a winding roller, and the winding roller and the feeding roller are identical in structure.

By adopting the technical scheme, the mechanism is unified, the worker can conveniently take and install, and the taking mode of other mechanisms can be known by a user.

Preferably, both ends of the winding roller are provided with thread parts, and the thread parts are in threaded connection with limiting blocks.

By adopting the technical scheme, the width of the fabric can be limited when the fabric is rolled, the phenomenon that the fabric is uneven in width when the fabric is rolled is prevented, and the uniformity of rolling is ensured.

As preferred, be equipped with clearance mechanism between winding mechanism and the compression roller, clearance mechanism includes upper and lower two sets of scraping plate group and the dust absorption group that corresponds with scraping plate group, scraping plate group is including the scraper blade that the slope set up and the torsional spring of being connected with the one end of top department scraper blade, the torsional spring is kept away from the one end fixed connection of scraper blade in quick-witted incasement wall, and the below department the slope of scraper blade is fixed in quick-witted incasement wall, dust absorption group includes suction nozzle and fan, fan fixed connection is outside quick-witted case, the inlet scoop of fan is connected in the suction nozzle, the suction nozzle is towards scraper blade department.

By adopting the technical scheme, after the fabric is combed, the upper surface and the lower surface of the fabric are abutted through the scraper blade, impurities on the surface of the fabric are scraped, the suction nozzle is just aligned to the contact part of the scraper blade and the fabric when the impurities are scraped, and the fan can suck the impurities from the suction nozzle and uniformly collect the impurities to one place.

Preferably, the side wall of the case is rotatably connected with a window which can be opened, the window is provided with a handle, the case is provided with a rotary abutting block, and the rotary abutting block abuts against the window.

By adopting the technical scheme, the arrangement of the window is convenient for replacing the cleaning film.

Drawings

FIG. 1 is a front view cross-section of the embodiment;

FIG. 2 is a sectional view of a side view of the embodiment;

FIG. 3 is a cross-sectional view of a top view of the embodiment.

Reference numerals: 1. a chassis; 2. a feeding mechanism; 21. a feed roller; 3. a carding mechanism; 31. an upper carding part; 32. a lower carding part; 321. a sleeve seat; 322. a cylinder; 323. a top plate; 324. a carding wire; 325. cleaning the film; 4. a winding mechanism; 41. a wind-up roll; 411. a threaded portion; 42. a limiting block; 5. a drive mechanism; 51. a motor; 52. a support frame; 53. a rotating frame; 54. a main transmission member; 55. a first slave drive member; 56. a second slave drive member; 57. a first rotating lever; 58. a second rotating lever; 61. a first feeding frame; 611. a frame; 612. a semicircular flip cover; 613. a fixing plate; 614. a plum blossom screw; 62. a second feeding frame; 71. a first winding frame; 72. A second winding frame; 8. a compression roller; 81. a semicircular sleeve; 82. fixing the rod; 83. a spring; 84. fixing a sleeve; 9. a cleaning mechanism; 91. a scraping plate group; 911. a squeegee; 912. a torsion spring; 92. a dust collection group; 921. a suction nozzle; 922. a fan; 10. windowing; 11. a handle; 12. and rotating the resisting block.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. It should also be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and such modifications and decorations should also be regarded as the protection scope of the present invention.

As shown in figure 1, a combing machine comprises a machine case 1, a feeding mechanism 2, a combing mechanism 3 and a rolling mechanism 4 are arranged on the opposite inner walls of the machine case 1, the feeding mechanism 2 and the rolling mechanism 4 are connected with a driving mechanism 5 together, the driving mechanism 5 comprises a motor 51, a supporting frame 52 and a rotating frame 53 which are fixedly arranged on one side of the inner wall of a box body, the motor 51 is fixedly arranged outside the machine case 1, an output shaft of the motor 51 penetrates through the machine case 1 to be connected with a main transmission piece 54 in a rotating way, the main transmission piece 54 is connected with the rotating frame 53 in a rotating way, the rotating frame 53 is arranged between the supporting frame 52 and the inner wall of the box body, the two ends of the rotating frame are respectively connected with a first driven transmission piece 55 and a second driven transmission piece 56 in a rotating way, the first driven transmission piece 55 is connected with a first rotating rod 57 in a rotating way, the first, the feeding mechanism 2 is fixedly and detachably mounted between the first feeding frame 61 and the second feeding frame 62, the second driven transmission piece 56 is rotatably connected with a second rotating rod 58, the second rotating rod 58 penetrates through the supporting frame 52 and is rotatably connected with a first winding frame 71, the inner wall of the box body opposite to the first winding frame 71 is rotatably connected with a second winding frame 72, the winding mechanism 4 is fixedly and detachably mounted between the first winding frame 71 and the second winding frame 72, and the carding mechanism 3 is located between the feeding mechanism 2 and the winding mechanism 4.

As shown in fig. 2 and 3, the first feeding frame 61 includes a frame 611 and a semi-circular flip cover 612, the semi-circular flip cover 612 is rotatably connected to the frame 611, a first insertion rod is disposed inside the semi-circular flip cover 612, a second insertion rod is disposed at a position of the frame 611 opposite to the first insertion rod, fixing plates 613 are disposed at the semi-circular flip cover 612 and the corresponding frame 611, and a plum screw 614 is fixedly connected to the fixing plates 613.

As shown in fig. 3, the feeding mechanism 2 includes a feeding roller 21, two ends of the feeding roller 21 are respectively provided with a first insertion hole and a second insertion hole, the first insertion rod is inserted into the first insertion hole, and the second insertion rod is inserted into the second insertion hole; the first jack, the second jack, the first inserted link and the second inserted link are mutually inserted, so that the feeding roller 21 and the first feeding frame 61 can be fixed, and the phenomenon that the feeding roller 21 shakes rather than rotates is avoided.

In addition, the winding mechanism 4 comprises a winding roller 41, the winding roller 41 and the feeding roller 21 have the same structure, and the second feeding rack 62, the first winding rack 71 and the second winding rack 72 have the same structure as the first feeding rack 61; unified mechanism makes things convenient for the workman to take and install, as long as well-known one just can know the mode of taking of other mechanisms.

As shown in fig. 2, two ends of the winding roller 41 are provided with thread portions 411, the thread portions 411 are in threaded connection with limiting blocks 42, the width of the fabric during winding can be adjusted and limited, the phenomenon that the fabric is uneven in width during winding is prevented, and the winding uniformity is guaranteed.

As shown in fig. 1, the carding mechanism 3 includes an upper carding part 31 and a lower carding part 32, the upper carding part 31 is fixedly mounted on the inner wall of the top of the chassis 1, sleeve seats 321 are respectively arranged on two sides of the lower carding part 32, an air cylinder 322 is arranged below the sleeve seats 321, an expansion link of the air cylinder 322 is sleeved in the sleeve seats 321, the upper carding part 31 and the lower carding part 32 have the same structure, and both include a top plate 323, a plurality of carding needles 324 and a cleaning film 325, the carding needles 324 are fixedly arranged on the top plate 323 and are perpendicular to the top plate 323, and the cleaning film 325 passes through the carding needles 324 and is attached to the surface of the top plate 323.

In addition, as shown in fig. 2, a side wall of the chassis 1 is rotatably connected with a foldable window 10, the window 10 is provided with a handle 11, the chassis 1 is provided with a rotation resisting block 12, the rotation resisting block 12 is abutted against the window 10, and the window 10 is provided for facilitating the replacement of the cleaning film 325.

As shown in fig. 1, two compression rollers 8 are arranged between the feeding mechanism 2 and the carding mechanism 3 and between the carding mechanism 3 and the winding mechanism 4, the compression roller 8 located above is rotatably connected with a semicircular sleeve 81, the top parts of the two ends of the semicircular sleeve 81 are respectively connected with a fixing rod 82 in a T shape, the top part of the fixing rod 82 is fixed on the outer wall of the top part of the case 1, a spring 83 is arranged on the fixing rod 82 in a penetrating manner, the upper end of the spring 83 is provided with a fixing sleeve 84 larger than the diameter of the spring 83, the spring 83 is abutted to the bottom end of the fixing sleeve 84, the side wall of the fixing sleeve 84 is fixedly installed on the inner wall of the case.

Because the thickness of different fabrics is not easy, the compression roller 8 positioned above can adapt to the change of the thickness of the fabrics by utilizing the compression elastic potential energy of the spring 83, and can play a role of compressing the fabrics by combining with the compression roller 8 which can not change the position in the vertical direction below, and the pressing force is always kept in the fabric conveying process.

As shown in fig. 1 and 2, a cleaning mechanism 9 is arranged between the winding mechanism 4 and the press roller 8, the cleaning mechanism 9 includes an upper group of scraper 911 and a lower group of scraper 911 and a dust collection group 92 corresponding to the scraper 911, the scraper 911 group 91 includes an obliquely arranged scraper 911 and a torsion spring 912 connected with one end of the scraper 911 at the upper part, one end of the torsion spring 912 far away from the scraper 911 is fixedly connected to the inner wall of the chassis 1, the scraper 911 at the lower part is obliquely fixed to the inner wall of the chassis 1, the dust collection group 92 includes a suction nozzle 921 and a fan 922, the fan 922 is fixedly connected to the outside of the chassis 1, an air suction port of the fan 922 is connected to the suction nozzle 921, the suction nozzle 921 faces the scraper 911, and a collection bag is tied up by a rope at the other end of the.

The specific working principle is as follows: opening the semicircular turnover covers 612 on the first feeding frame 61 and the second feeding frame 62, respectively placing two ends of the feeding roller 21 wound with the fabric to be combed in the frame 611, correspondingly inserting the insertion rods II and the insertion holes II, covering the semicircular turnover covers 612, inserting the insertion rods I on the semicircular turnover covers 612 and the insertion holes II on the feeding roller 21, fixing the semicircular turnover covers 612 and the frame 611 by using the plum blossom screws 614, and installing the winding roller 41 according to the same method.

The rotation of the motor 51 drives the main transmission part 54 to rotate, so that the rotating frame 53 makes circular motion, the first driven transmission part 55 and the second driven transmission part 56 at the two ends of the rotating frame 53 are indirectly driven to also make circular motion, the first rotating rod 57 connected with the first driven transmission part 55 and the second rotating rod 58 connected with the second driven transmission part 56 can rotate, so as to drive the first feeding frame 61 and the first winding frame 71 to rotate simultaneously, the first feeding frame 61 drives the second feeding frame 62 to rotate, the feeding operation of the fabric to be carded on the feeding roller 21 is realized, the fabric enters between the upper carding part 31 and the lower carding part 32 through the upper and lower compression rollers 8, the fabric leaving the carding mechanism 3 passes between the upper and lower compression rollers 8 again, and then impurities on the surface of the fabric are scraped through the scraper 911 which is abutted against the upper and lower surfaces of the fabric, when scraping off, the suction nozzle 921 is just aligned to the contact part of the scraper 911 and the fabric, the fan 922 can suck impurities from the suction nozzle 921 and collect the impurities into the collection bag uniformly, the fabric cleaned at last is wound on the winding roller 41, the winding roller 41 is driven by the first winding frame 71, the first winding frame 71 and the first feeding frame 61 rotate simultaneously, the winding speed and the feeding speed are kept consistent, and the problems of fabric fracture and fabric blockage caused by different speeds of the first winding frame 71 and the first feeding frame 61 are solved.

Because the carding can generate the batting, the batting can be accumulated between the carding needles 324, the batting is not easy to clean, at the moment, after the machine stops, the lower carding part 32 below can be lowered through the air cylinder 322, the distance between the upper carding part 31 and the lower carding part 32 is pulled, then the cleaning film 325 is lifted to be separated from the carding needles 324, the batting is taken out, the carding is simple and convenient, and then the batting can be put into a new cleaning film 325 again.

Claims

1. A combing machine comprises a machine case (1) and is characterized in that a feeding mechanism (2), a combing mechanism (3) and a winding mechanism (4) are arranged on the opposite inner walls of the machine case (1), the feeding mechanism (2) and the winding mechanism (4) are connected with a driving mechanism (5) together, the driving mechanism (5) comprises a motor (51), a supporting frame (52) and a rotating frame (53), the supporting frame (52) and the rotating frame (53) are fixedly installed on one side of the inner wall of the machine case (1), an output shaft of the motor (51) penetrates through the machine case (1) to be connected with a main transmission piece (54) in a rotating mode, the main transmission piece (54) is connected to the rotating frame (53) in a rotating mode, the rotating frame (53) is arranged between the supporting frame (52) and the inner wall of the machine case, and two ends of the rotating frame are respectively connected with a first, the first driven transmission piece (55) is rotationally connected with a first rotating rod (57), the first rotating rod (57) is rotationally connected with a first feeding frame (61) through a supporting frame (52), a second feeding rack (62) is rotatably connected with the inner wall of the box body opposite to the first feeding rack (61), the feeding mechanism (2) is fixedly and detachably arranged between the first feeding frame (61) and the second feeding frame (62), the second driven transmission piece (56) is rotationally connected with a second rotating rod (58), the second rotating rod (58) penetrates through the supporting frame (52) to be connected with a first winding frame (71) in a rotating way, a second winding frame (72) is rotatably connected with the inner wall of the box body opposite to the first winding frame (71), the winding mechanism (4) is fixedly and detachably arranged between the first winding frame (71) and the second winding frame (72), the carding mechanism (3) is positioned between the feeding mechanism (2) and the winding mechanism (4).

2. A combing machine according to claim 1, wherein the combing mechanism (3) comprises an upper combing part (31) and a lower combing part (32), the upper combing part (31) is fixedly mounted on the inner wall of the top of the machine case (1), sleeve seats (321) are respectively arranged on two sides of the lower combing part (32), an air cylinder (322) is arranged below the sleeve seat (321), telescopic rods of the air cylinder (322) are sleeved in the sleeve seats (321), the upper combing part (31) and the lower combing part (32) have the same structure and respectively comprise a top plate (323), a plurality of combing needles (324) and a cleaning film (325), the combing needles (324) are fixedly arranged on the top plate (323) and are vertical to the top plate (323), and the cleaning film (325) passes through the combing needles (324) and is attached to the surface of the top plate (323).

3. Combing machine according to claim 2, wherein two press rolls (8) are arranged between the feeding mechanism (2) and the combing mechanism (3) and between the combing mechanism (3) and the winding mechanism (4), a semicircular sleeve (81) is rotatably connected above the upper press roll (8), the tops of two ends of the semicircular sleeve (81) are respectively connected with a T-shaped fixed rod (82), the top of the fixed rod (82) is fixed on the outer wall of the top of the case (1), a spring (83) is arranged on the fixed rod (82) in a penetrating way, the upper end of the spring (83) is provided with a fixed sleeve (84) with the diameter larger than that of the spring (83), and the spring (83) is abutted to the bottom end of the fixed sleeve (84), the side wall of the fixed sleeve (84) is fixedly arranged on the inner wall of the case (1), and the compression roller (8) positioned below is rotatably connected to the inner wall of the case (1).

4. A combing machine according to claim 3, wherein the first feeding frame (61) comprises a frame (611) and a semicircular turning cover (612), the semicircular turning cover (612) is rotatably connected to the frame (611), a first insertion rod is arranged inside the semicircular turning cover (612), a second insertion rod is arranged at a position where the frame (611) is opposite to the first insertion rod, fixing plates (613) are arranged at the semicircular turning cover (612) and the frame (611) corresponding to the semicircular turning cover, and a plum screw (614) is fixedly connected to the fixing plates (613).

5. Combing machine according to claim 4, wherein the feeding mechanism (2) comprises a feeding roller (21), two ends of the feeding roller (21) are respectively provided with a first insertion hole and a second insertion hole, the first insertion rod is inserted into the first insertion hole, and the second insertion rod is inserted into the second insertion hole.

6. Combing machine according to claim 5, characterised in that the second feeding frame (62), the first winding frame (71) and the second winding frame (72) have the same structure as the first feeding frame (61).

7. Combing machine according to claim 6, characterised in that the winding mechanism (4) comprises a winding roller (41), the winding roller (41) and the feed roller (21) being of identical construction.

8. Combing machine according to claim 7, characterised in that the take-up roll (41) is provided at both ends with a threaded portion (411), the threaded portion (411) being screwed with a stop block (42).

9. Combing machine according to claim 8, characterised in that a cleaning device (9) is arranged between the winding device (4) and the pressure roller (8), the cleaning mechanism (9) comprises an upper group of scraping plates (911) and a lower group of scraping plates (91) and a dust collection group (92) corresponding to the scraping plates (911) group (91), the scraper (911) group (91) comprises a scraper (911) which is obliquely arranged and a torsion spring (912) which is connected with one end of the scraper (911) at the upper part, one end of the torsion spring (912) far away from the scraper (911) is fixedly connected to the inner wall of the case (1), the scraper (911) at the lower part is obliquely fixed on the inner wall of the case (1), the dust collection group (92) comprises a suction nozzle (921) and a fan (922), fan (922) fixed connection is outside in quick-witted case (1), the inlet scoop of fan (922) is connected in suction nozzle (921), suction nozzle (921) is towards scraper blade (911).

10. Combing machine according to claim 9, characterized in that the side wall of the machine case (1) is rotatably connected with a hinged window (10), the hinged window (10) is provided with a handle (11), the machine case (1) is provided with a rotary resisting block (12), and the rotary resisting block (12) is abutted to the hinged window (10).