阅读说明：本技术 梳棉机预牵伸装置的翻转启闭式皮辊加压结构 (Turning open-close type leather roller pressurizing structure of carding machine pre-drafting device ) 是由 孙良省 王刚 张永平 靳文焘 于 2019-12-20 设计创作，主要内容包括：一种梳棉机预牵伸装置的翻转启闭式皮辊加压结构,包括加压底板和转动启闭机构,转动启闭机构包括侧板座、限位销、把手和弹簧,在侧板座上设有限位凹槽,加压底板上开有插销孔,限位销间隙地套装在插销孔内中,限位销和把手固定连接,推动把手能带动限位销插入或退出限位凹槽,弹簧设置在销孔底部和限位销之间,在自由状态下弹簧推动限位销处于锁合状态；加压底板可绕转销轴相对侧板座翻转。打开加压底板只要向内拨动把手,使限位销退出限位凹槽即可。当需要将加压底板合上时,只要将加压底板绕转销轴向上翻转即可实现锁合,既轻便,又省时,打开和闭合时间只要5秒钟,每次维护比传统方案节省2小时,且能理想地克服了现有技术中存在的缺陷。(A turning open-close type leather roller pressurizing structure of a pre-drafting device of a carding machine comprises a pressurizing bottom plate and a rotating open-close mechanism, wherein the rotating open-close mechanism comprises a side plate seat, a limiting pin, a handle and a spring; the pressurizing bottom plate can turn over around the rotating pin shaft relative to the side plate seat. The pressurizing bottom plate is opened only by pulling the handle inwards to enable the limiting pin to exit the limiting groove. When the pressurizing bottom plate needs to be closed, the pressurizing bottom plate can be locked only by turning the pressurizing bottom plate upwards around the rotating pin shaft, the locking device is light and time-saving, the opening and closing time is only 5 seconds, 2 hours are saved in each maintenance compared with the traditional scheme, and the defects in the prior art can be ideally overcome.)

1. The utility model provides a carding machine is opening and close formula roller pressurization structure in upset of draft device in advance, characterized by: comprises a pressurizing bottom plate (1), an adjusting plate (2), a leather roller pressurizing assembly (3), a rotary opening and closing mechanism (4), an adjusting drafting roller (5) and a fixed drafting roller (6), wherein the pressurizing bottom plate (1) is provided with two bottom plate screw holes (11) for installing the leather roller pressurizing assembly (3) and two bottom plate adjusting grooves (12), the connecting line of the centers of the two bottom plate screw holes (11) and the axis of the corresponding fixed drafting roller (6) arranged below the pressurizing bottom plate (1) are positioned in the same vertical plane, the axes of the two bottom plate adjusting grooves (12) pass through the centers of the adjacent bottom plate screw holes (11), the groove width of the bottom plate adjusting groove (12) is larger than the outer diameter of a threaded sleeve (31) in the leather roller pressurizing assembly (3), the length dimension of the bottom plate adjusting groove (12) corresponds to the adjusting distance of the adjusting drafting roller (5), two side faces at one end of the pressurizing bottom plate (1) are provided with rotating pin holes (13) colli, two side surfaces of the other end of the pressurizing bottom plate (1) are provided with bolt holes (14), and a hand lever pushing hole (15) is arranged on the upper end surface of the pressurizing bottom plate (1) corresponding to the length center position of the bolt holes (14); the adjusting plate (2) is provided with more than two outer roller adjusting grooves (21) which are arranged in parallel and a second connecting screw hole (22) for installing a leather roller pressurizing assembly (3), the adjusting plate (2) is fixed on a pressurizing support plate (1) through an adjusting bolt (23), the leather roller pressurizing assembly (3) comprises a threaded sleeve (31), a pressure adjusting plug (32), a pressurizing spring (33) and a pressurizing step shaft (34), external threads are arranged on the outer side of the threaded sleeve (31), a matching hole (311), a spring hole (312) and a guide hole (313) are sequentially arranged in an inner hole of the threaded sleeve (31) from top to bottom, the aperture of the guide hole (313) is smaller than that of the matching hole (311) and the spring hole (312), the threaded sleeve (31) is screwed in a bottom plate thread (11) or a second connecting screw hole (22) and locked by a locking nut (8), the pressurizing step shaft (34) is sleeved in the spring hole (312) and the guide hole (313), the pressurizing spring (33) is sleeved in the spring hole (312), and the lower end face of the pressurizing spring (33) is pressed on the upper end face of the pressurizing step shaft (34); the adjusting plug (32) is pressed in the matching hole (311) in an interference fit mode to prevent the pressurizing spring (33) from moving upwards; the rotary opening and closing mechanism (4) comprises side plate seats (41), limiting pins (42), a handle (43) and a spring (44), the side plate seats (41) are arranged on two sides of the pressurizing base plate (1), limiting grooves (45) are formed in the side plate seats (41), bolt holes (14) are formed in the pressurizing base plate (1), the limiting pins (42) are sleeved in the bolt holes (14) in a clearance mode and can move axially freely in the bolt holes, the limiting pins (42) and the handle (43) are fixedly connected into an upper body, the limiting pins (42) can be driven by pushing the handle (43) to be inserted into or withdrawn from the limiting grooves (45) in the side plate seats (41), the spring (44) is arranged between the bottoms of the pin holes and the limiting pins (42), and the limiting pins (42) are pushed to be in a locking state by the spring (44) in a free state; the pressurizing bottom plate (1) is rotatably connected with the two side plate seats (41) through a rotating pin shaft (7), and the pressurizing bottom plate (1) can turn over relative to the side plate seats (41) around the rotating pin shaft (7).

2. The turnover open-close type roller pressing structure of the carding machine pre-drafting device according to claim 1, which is characterized in that: two outer roller adjusting grooves (21) which are arranged in parallel are arranged on the adjusting plate (2).

The technical field is as follows:

the invention belongs to the field of textile machinery, and particularly relates to a carding machine with a pre-drafting function.

Background art:

along with the increase of labor cost and the improvement of energy-saving and efficiency-increasing requirements of textile enterprises, the high speed and high yield of carding machines become a basic requirement. Based on such requirements, increasing the pre-drafting arrangement on the carding machine is gradually becoming a development trend. The pre-drafting device can perform small-magnification drafting on a single raw sliver and can also achieve the effect of leveling the sliver. The pre-drafting device is simple in structure and convenient to adjust and maintain, the traditional carding machine is not provided with the pre-drafting device for the cotton sliver, the pre-drafting device for the cotton sliver is usually arranged on the drawing frame, the applicant discloses a scheme of additionally arranging the pre-drafting device for the cotton sliver on the carding machine on the patent application number 201910246965.1, namely the name of the carding machine with the pre-drafting function, but a pressurizing bottom plate in a leather roller pressurizing structure is a fixed structure and needs to be disassembled and assembled when the carding machine is stopped to overhaul or re-threaded, even if the daily blowing maintenance needs to be carried out, the auxiliary time of the shutdown overhaul and the arrangement is prolonged, the running time of the whole machine is shortened, the operation difficulty and the workload of an operator are increased, and the adjustment and the maintenance are inconvenient.

The invention content is as follows:

in order to overcome the defects of the prior art, the invention provides a turnover opening and closing type leather roller pressurizing structure of a pre-drafting device of a carding machine, which has a simple structure and is convenient for routine maintenance and re-drafting operation.

A turning open-close type leather roller pressurizing structure of a pre-drafting device of a carding machine comprises a pressurizing bottom plate, an adjusting plate, a leather roller pressurizing assembly, a rotating open-close mechanism, an adjusting drafting roller and a fixed drafting roller, two soleplate screw holes for installing the leather roller pressurizing assembly and two soleplate adjusting grooves are arranged on the pressurizing soleplate, wherein the central connecting line of the two bottom plate screw holes and the axial line of the corresponding fixed drafting roller arranged below the pressurizing bottom plate are positioned in the same vertical plane, the axial lines of the two bottom plate adjusting grooves pass through the centers of the adjacent bottom plate screw holes, the groove width of the bottom plate adjusting groove is larger than the outer diameter of a threaded sleeve in the leather roller pressurizing assembly, the length dimension of the bottom plate adjusting groove corresponds to the adjusting distance of the adjusting drafting roller, the two side surfaces of one end of the pressurizing bottom plate are provided with a rotating pin hole in a collinear way, the two side surfaces of the other end of the pressurizing bottom plate are provided with a bolt hole, a hand lever pushing hole is arranged on the upper end surface of the pressurizing bottom plate corresponding to the length center of the bolt hole; the adjusting plate is provided with more than two outer roller adjusting grooves which are arranged in parallel and a second connecting screw hole for installing a leather roller pressurizing assembly, the adjusting plate is fixed on a pressurizing support plate through an adjusting bolt, the leather roller pressurizing assembly comprises a threaded sleeve, a pressure adjusting plug, a pressurizing spring and a pressurizing step shaft, external threads are arranged on the outer side of the threaded sleeve, a matching hole, a spring hole and a guide hole are sequentially arranged in an inner hole of the threaded sleeve from top to bottom, the aperture of the guide hole is smaller than that of the matching hole and the spring hole, the threaded sleeve is screwed in a bottom plate thread or a second connecting screw hole and locked by a locking nut, the pressurizing step shaft is sleeved in the spring hole and the guide hole, the pressurizing spring is sleeved in the spring hole, and the lower end face of the pressurizing spring is pressed on the upper end face of the pressurizing step shaft; the adjusting plug is pressed in the matching hole in an interference fit manner to prevent the pressurizing spring from moving upwards;

the rotary opening and closing mechanism comprises side plate seats, limiting pins, handles and springs, wherein the side plate seats are arranged on two sides of the pressurizing bottom plate, limiting grooves are formed in the side plate seats, the limiting pins are sleeved in the bolt holes in a clearance mode and can freely axially move in the bolt holes, the limiting pins and the handles are fixedly connected into a whole, the handles are pushed to drive the limiting pins to be inserted into or withdrawn from the limiting grooves in the side plate seats, the springs are arranged between the bottoms of the bolt holes and the limiting pins, and the springs push the limiting pins to be in an inserting state in a free state; the pressurizing bottom plate is rotatably connected with the two side plate seats through a rotating pin shaft, and the pressurizing bottom plate can turn over relative to the side plate seats around the rotating pin shaft.

Furthermore, two outer roller adjusting grooves are arranged on the adjusting plate.

Because the pressurizing bottom plate is designed into a structure which can be overturned relative to the side plate seat, when the pre-traction mechanism needs to be cleaned and maintained or the pre-traction mechanism needs to be maintained, adjusted or maintained, only the handle in the opening and closing mechanism needs to be inwards stirred and rotated, the limiting pin compresses the spring and withdraws from the limiting groove on the side plate seat, the pressurizing bottom plate can overturn relative to the side plate seat around the rotating pin shaft, and internal parts of the pre-traction device are exposed. When the pressurizing bottom plate needs to be closed after maintenance or repair is finished, the pressurizing bottom plate is turned upwards around the rotating pin shaft, when the pressurizing bottom plate is turned to be extremely limited, the end part of the limiting pin is inserted into the limiting groove on the side plate seat under the action of the spring, locking is achieved, the pressurizing bottom plate is light and time-saving, the opening and closing time is only 5 seconds, the time from opening to closing is saved by 2 hours each time compared with the traditional scheme, and the scheme can ideally overcome the defects in the prior art.

Description of the drawings:

FIG. 1 is a schematic view of a leather roller in a pressurized state;

FIG. 2 is a view taken along line A of FIG. 1;

FIG. 3 is a schematic view of a pressurized base plate;

FIG. 4 is a schematic view of the adjusting plate;

FIG. 5 is a schematic view of a structure of a roller pressing assembly;

FIG. 6 is a schematic structural view of a threaded bushing;

fig. 7 is a schematic structural view of a rotary opening and closing mechanism.

In the figure: 1-a pressurized soleplate; 2-adjusting plate; 3-a leather roller pressurizing assembly; 4-rotating the opening and closing mechanism; 5-adjusting the drafting roller; 6-fixing the drafting roller; 7-rotating the pin roll; 8-locking a nut; 11-a bottom plate screw hole; 12-a baseplate adjustment slot; 13-rotating pin holes; 14-bolt holes; 15-handle bar pushing hole; 16-fixing threaded holes; 21-outer roller adjusting groove; 22-a second connection screw hole; 23-adjusting the bolt; 31-a threaded bushing; 32-pressure regulating plug; 33-a compression spring; 34-pressing the step shaft; 311-mating holes; 312-spring hole; 313-a guide hole; 41-side plate seat; 42-a limit pin; 43-a handle; 44-a spring; 45-limit groove.

The specific implementation mode is as follows:

the following description of the embodiments of the present invention refers to the accompanying drawings: