Large drafting system of drawing frame

Abstract

The utility model relates to the field of drawing frames, and discloses a drawing frame large drafting system which comprises a back plate, one side of the upper end of the back plate is fixedly connected with an upper air suction pipeline, the back face of the upper air suction pipeline is fixedly connected with a connecting pipeline, and the lower end of the connecting pipeline is fixedly connected with a lower air suction pipeline. And the lower air suction pipeline is fixedly connected to the lower end of the back plate, a collecting pipeline is fixedly connected to the middle of a connecting pipeline, and a filtering air box is fixedly connected to the other end of the collecting pipeline. The semi-closed type air suction dust removal design is adopted, external influences are avoided, compared with an open type dust collection design, cleanliness of key parts is guaranteed, air suction distribution is even, suction force is stable, and the problem that local suction force is too large cannot occur; meanwhile, open type suction loss is not required to be replaced by a mode of increasing power and energy consumption; in addition, the dust removal equipment, the drawing equipment and the drafting equipment are integrated, so that the equipment layout in the drawing frame is regular, and the occupied space is small.

Description

TECHNICAL FIELD

[0001] The utility model belongs to drawing frame technical field, concretely relates to a drawing frame big draft system. BACKGROUND

[0002] Drawing frame draft system is the intermediate link in spinning process, and is the key process for improving yarn quality. Its function is to effectively control the deviation of cotton strip draft, improve the uniformity of cotton strip, the uniformity of fiber cotton strip, the straightness and parallelism of fiber, make different quality fibers mix more evenly in cotton strip, and create conditions for obtaining good yarn. The traditional air suction of draft area is generally open type, and two large air suction ports are arranged above and below to clean the draft area. The open type air suction is greatly affected by external factors, and it is difficult to ensure the cleaning of key parts. In order to ensure the cleaning effect of key parts, the power consumption of the fan must be greatly improved to provide sufficient air volume and form high negative pressure. Although the total air volume of the open type can be controlled (frequency conversion or partition), the air suction of each part of the draft area is still not high, and the energy consumption is increased. In many cases, the problem of too high local negative pressure causing a large amount of good cotton fiber to be taken away and wasted (commonly known as white suction) exists. Especially, the limiting of the cotton net cluster triangle area is taken away, which causes too many details, affects the yarn quality, and causes the fabric surface quality to be unqualified. In the prior art, a hose is connected from the filter box to the suction part, which has been greatly improved compared with the former, but the ventilation cross section is small, and the inner side of the corner is wrinkled to cause cotton scraping. After a long time of use, dust accumulation will further reduce the ventilation cross section and reduce the dust removal effect. Although a large number of hoses are flexible in space arrangement, they are generally squeezed in a small space, irregularly shaped, and the use of a large area makes the whole equipment layout messy.

[0003] Therefore, the present application provides a drawing frame big draft system to improve the above-mentioned problems and defects. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the technical problems of the above-mentioned open type air suction being greatly affected by external factors, being difficult to ensure the cleaning of key parts, increasing the power consumption of the fan to provide sufficient air volume, increasing the energy consumption, and appearing white suction phenomenon, and the ventilation cross section being small, wrinkles causing cotton scraping and the whole equipment layout being messy when the hose is connected from the filter box to the suction part, the basic idea of the technical scheme of the utility model is:

[0005] A drawing frame big draft system, including backplate, one side of the upper end of backplate is fixedly connected with upper suction duct, the back of upper suction duct is fixedly connected with connecting duct, the lower end of connecting duct is fixedly connected with lower suction duct, lower suction duct is fixedly connected in the lower end of backplate, and the middle part of connecting duct is fixedly connected with collection duct, the other end of collection duct is fixedly connected with filter air tank, the other side air outlet of filter air tank is fixedly connected with air outlet duct, the other end of air outlet duct is fixedly connected with warehouse ventilation duct, and the back of backplate is fixedly connected with drive box.

[0006] As a preferred embodiment of the utility model, the panel of the backplate is provided with a drawing draft mechanism, which comprises a drawing roller, a lower draft roller, an upper draft roller and a pressure roller, and a wire slot is formed in the periphery of each of the drawing roller, the lower draft roller, the upper draft roller and the pressure roller.

[0007] As a preferred embodiment of the utility model, the periphery of the drawing roller is sleeved with a drawing dust removal box, one end of the drawing dust removal box is fixedly connected to the backplate, wire holes are formed in the middle part of the drawing dust removal box on both sides, first flares are fixedly connected to the outer sides of the upper and lower ends of the drawing dust removal box, drawing dust removal pipes are fixedly connected to the first flares, the upper and lower drawing dust removal pipes are fixedly connected to the upper and lower suction ducts respectively, and a drawing scraper is fixedly connected to the inside of the drawing dust removal box corresponding to the first flares.

[0008] As a preferred embodiment of the utility model, the periphery of the lower draft roller is sleeved with a lower dust removal box, one end of the lower dust removal box is fixedly connected to the backplate, lower wire holes are formed in the upper end of the lower dust removal box on both sides, a second flare is fixedly connected to the lower end of the lower dust removal box, lower dust removal pipes are fixedly connected to the second flares, the other end of the lower dust removal pipe is fixedly connected to the lower suction duct, and a lower scraper is fixedly connected to the inside of the lower dust removal box corresponding to the second flares.

[0009] As a preferred embodiment of the utility model, the periphery of the upper draft roller is sleeved with an upper dust removal box, one end of the upper dust removal box is fixedly connected to the backplate, upper wire holes are formed in the lower end of the upper dust removal box on both sides, a third flare is fixedly connected to the upper end of the upper dust removal box, upper dust removal pipes are fixedly connected to the third flares, the upper end of the upper dust removal pipe is fixedly connected to the upper suction duct, and an upper scraper is fixedly connected to the inside of the upper dust removal box corresponding to the third flares.

[0010] As a preferred embodiment of the utility model, the pressure roller is sleeved with a pressure roller dust removal box, one end of the pressure roller dust removal box is fixedly connected to the back plate, pressure roller wire holes are formed on both sides of the middle part of the pressure roller dust removal box, fourth flares are fixedly connected to the outer sides of the upper and lower ends of the pressure roller dust removal box, dust suction hoses are fixedly connected to the fourth flares, the dust suction hoses at the upper and lower ends are fixedly connected to the upper and lower air suction pipelines respectively, and a pressure roller scraper is fixedly connected to the inside of the pressure roller dust removal box at the position corresponding to the fourth flares.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model discloses a half-closed air suction and dust removal design, avoids the influence of the outside world, ensures the cleaning of key parts compared with the open dust removal design, and the air suction is uniform and stable, and the problem of excessive local suction force does not appear, and the open suction loss is not obtained by increasing power and energy consumption, and the dust removal equipment is integrated with the drawing frame and drafting equipment, so that the equipment layout in the drawing frame is regular, and the occupied space is small.

[0013] The specific embodiments of the utility model will be described in further detail below with reference to the drawings. DRAWINGS

[0014] In the drawings:

[0015] Figure 1 It is a three-dimensional whole left view schematic diagram of a drawing frame large drafting system.

[0016] Figure 2 It is a three-dimensional whole right view schematic diagram of a drawing frame large drafting system.

[0017] Figure 3 It is a three-dimensional whole rear view schematic diagram of a drawing frame large drafting system.

[0018] Figure 4 It is a partial enlarged schematic diagram of a drawing frame large drafting system.

[0019] Figure 5 It is a drawing roller disassembly enlarged schematic diagram of a drawing frame large drafting system.

[0020] Figure 6 It is a drafting roller disassembly enlarged schematic diagram of a drawing frame large drafting system.

[0021] Figure 7 It is a pressure roller disassembly enlarged schematic diagram of a drawing frame large drafting system.

[0022] In the figure: 1, back plate; 2, upper suction duct; 3, lower suction duct; 4, drawing dust removal box; 5, drawing roller; 6, first flared; 7, drawing suction pipe; 8, second flared; 9, lower draft roller; 10, lower suction pipe; 11, lower dust removal box; 12, suction hose; 13, fourth flared; 14, pressure roller dust removal box; 15, pressure roller; 16, upper draft roller; 17, upper suction pipe; 18, third flared; 19, upper dust removal box; 20, connecting duct; 21, collection duct; 22, filter air box; 23, air outlet duct; 24, warehouse ventilation duct; 25, lower line hole; 26, lower scraper; 27, drawing line hole; 28, drawing scraper; 29, upper scraper; 30, upper line hole; 31, pressure roller line hole; 32, pressure roller scraper; 32, pressure roller scraper; 33, line groove; 34, drive box. DETAILED DESCRIPTION

[0023] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, and the following embodiments are used to illustrate the utility model.

[0024] As Figures 1 to 7 shown, a drawing machine large draft system, including back plate 1, the upper end of back plate 1 one side is fixedly connected with upper suction duct 2, the back of upper suction duct 2 is fixedly connected with connecting duct 20, the lower end of connecting duct 20 is fixedly connected with lower suction duct 3, lower suction duct 3 is fixedly connected at the lower end of back plate, and the middle part of connecting duct 20 is fixedly connected with collection duct 21, the other end of collection duct 21 is fixedly connected with filter air box 22, the other side air outlet of filter air box 22 is fixedly connected with air outlet duct 23, the other end of air outlet duct 23 is fixedly connected with warehouse ventilation duct 24, and the back of back plate 1 is fixedly connected with drive box 34;The panel of back plate 1 is provided with drawing draft mechanism, and the drawing draft mechanism includes drawing roller 5, lower draft roller 9, upper draft roller 16 and pressure roller, and the periphery of drawing roller 5, lower draft roller 9, upper draft roller 16 and pressure roller is provided with line groove 33.

[0025] In the present setting, the utility model avoids the influence of the outside world by adopting the design of semi-closed suction dust removal, ensures the cleaning of key parts relative to the open dust removal design, and the suction distribution is uniform and the suction force is stable, and the problem of excessive local suction force does not occur.

[0026] As Figures 1 to 7As shown, in a specific embodiment, the outer periphery of the drawing roller 5 is sleeved with a drawing dust removal box 4, one end of the drawing dust removal box 4 is fixedly connected to the back plate 1, and drawing line holes 27 are opened on both sides of the middle part of the drawing dust removal box 4, and the upper and lower ends of the outer sides of the drawing dust removal box 4 are fixedly connected with a first flare 6, and the first flare 6 is fixedly connected with a drawing dust suction pipe 7, and the drawing dust suction pipes 7 at the upper and lower ends are respectively fixedly connected to the upper suction duct 2 and the lower suction duct 3, and the interior of the drawing dust removal box 4 is fixedly connected to the first flare 6 corresponding to the drawing scraper 28, and the drawing scraper 28 corresponds to the outer ring of the drawing roller 5 and is slidably connected to it.

[0027] In this setup, there is no need to increase power and energy consumption in exchange for the loss of open suction.

[0028] like Figures 1 to 7 As shown, in the specific embodiment, the outer periphery of the lower drafting roller 9 is sleeved with a lower dust removal box 11, one end of the lower dust removal box 11 is fixedly connected to the back plate 1, and lower wire holes 25 are opened on both sides of the upper end of the lower dust removal box 11, and the lower end of the lower dust removal box 11 is fixedly connected to the second flare 8, and the second flare 8 is fixedly connected to the lower dust suction pipe 10, the other end of the lower dust suction pipe 10 is fixedly connected to the lower suction duct 3, and the interior of the lower dust removal box 11 is fixedly connected to the second flare 8 corresponding to the lower scraper 26, the lower scraper 26 corresponds to the outer ring of the lower drafting roller 9 and is slidably connected to it.

[0029] In this setting, the dust removal box in this patent is provided with wire holes, which are used to facilitate the passage of the cotton thread to be processed and also serve as an air inlet.

[0030] like Figures 1 to 7 As shown, in a specific embodiment, an upper dust removal box 19 is sleeved and installed on the periphery of the upper drafting roller 16, one end of the upper dust removal box 19 is fixedly connected to the back plate 1, and upper wire holes 30 are opened on both sides of the lower end of the upper dust removal box 19, and the upper end of the upper dust removal box 19 is fixedly connected to the third flare 18, and the upper end of the third flare 18 is fixedly connected to the upper dust suction pipe 17, the upper end of the upper dust suction pipe 17 is fixedly connected to the upper suction duct 2, and the interior of the upper dust removal box 19 is fixedly connected to the corresponding position of the third flare 18 with an upper scraper 29, the upper scraper 29 corresponds to the outer ring of the upper drafting roller 16 and is slidably connected to it.

[0031] In this setup, the scraper inside the dust box scrapes the lint off the roller surface and sucks it into the pipe through the flared opening.

[0032] like Figures 1 to 7As shown, in the specific embodiment, the outer periphery of the pressure roller 15 is sleeved with a pressure roller dust removal box 14, one end of the pressure roller dust removal box 14 is fixedly connected to the back plate 1, both sides of the middle part of the pressure roller dust removal box 14 are provided with pressure roller wire holes 31, and the outer sides of the upper and lower ends of the pressure roller dust removal box 14 are fixedly connected with fourth flared portions 13, the fourth flared portions 13 are fixedly connected with dust suction hoses 12, the dust suction hoses 12 at the upper and lower ends are fixedly connected to the upper and lower air suction ducts 2 and 3, and the pressure roller dust removal box 14 is fixedly connected with a pressure roller scraper 32 at the position corresponding to the fourth flared portion 13, the pressure roller scraper corresponds to the outer ring of the pressure roller 15 and is slidably connected with the pressure roller 15.

[0033] In the present application, the dust removal device is integrated with the drawing frame and the drafting device, so that the equipment layout in the drawing frame is regular and occupies a small space.

[0034] The implementation principle of the drawing frame large-drafting system of the present application is as follows:

[0035] The present application adopts the semi-closed air suction and dust removal design, avoids the influence of the external environment, ensures the cleaning of the key parts compared with the open dust removal design, and the air suction is uniform and stable, and the problem of excessive local suction force does not occur; at the same time, the open suction loss is not obtained by increasing the power and energy consumption; furthermore, the dust removal device is integrated with the drawing frame and the drafting device, so that the equipment layout in the drawing frame is regular and occupies a small space; the dust removal box in the present application is provided with wire holes, which facilitates the passing of the cotton threads to be drawn, and also serves as the air inlet, and the scraper in the dust removal box removes the lint on the surface of the roller and sucks it into the duct through the flared portion.

Claims

1. A drawing frame big draft system comprising a back plate (1), characterized in that: The upper end of the back plate (1) is fixedly connected with an upper air suction pipeline (2), the back surface of the upper air suction pipeline (2) is fixedly connected with a connecting pipeline (20), the lower end of the connecting pipeline (20) is fixedly connected with a lower air suction pipeline (3), the lower air suction pipeline (3) is fixedly connected with the lower end of the back plate, and the middle part of the connecting pipeline (20) is fixedly connected with a collecting pipeline (21), the other end of the collecting pipeline (21) is fixedly connected with a filter air tank (22), the other side of the filter air tank (22) is fixedly connected with an air outlet pipeline (23), the other end of the air outlet pipeline (23) is fixedly connected with a warehouse ventilation pipeline (24), and the back surface of the back plate (1) is fixedly connected with a drive box (34).

2. A draw frame high draft system according to claim 1 wherein, A drawing draft mechanism is arranged on the panel of the back plate (1), the drawing draft mechanism comprises a drawing roller (5), a lower draft roller (9), an upper draft roller (16) and a pressure roller, and the periphery of the drawing roller (5), the lower draft roller (9), the upper draft roller (16) and the pressure roller is provided with a wire slot (33).

3. A draw frame high draft system according to claim 2, characterised in that, The periphery of the drawing roller (5) is sleeved with a drawing dust removal box (4), one end of the drawing dust removal box (4) is fixedly connected with the back plate (1), the middle part of the drawing dust removal box (4) is provided with a drawing wire hole (27) on both sides, the upper and lower ends of the drawing dust removal box (4) are fixedly connected with a first flared portion (6) on the outer side, the first flared portion (6) is fixedly connected with a drawing dust suction pipe (7), the drawing dust suction pipes (7) at the upper and lower ends are fixedly connected with the upper air suction pipeline (2) and the lower air suction pipeline (3), and the inside of the drawing dust removal box (4) is fixedly connected with a drawing scraper (28) corresponding to the first flared portion (6), the drawing scraper (28) corresponds to the outer ring of the drawing roller (5) and is slidably connected therewith.

4. A large drafting system for a drawing frame according to claim 2, characterized in that: The periphery of the lower draft roller (9) is sleeved with a lower dust removal box (11), one end of the lower dust removal box (11) is fixedly connected with the back plate (1), the upper end of the lower dust removal box (11) is provided with a lower wire hole (25) on both sides, the lower end of the lower dust removal box (11) is fixedly connected with a second flared portion (8), the second flared portion (8) is fixedly connected with a lower dust suction pipe (10), the other end of the lower dust suction pipe (10) is fixedly connected with the lower air suction pipeline (3), and the inside of the lower dust removal box (11) is fixedly connected with a lower scraper (26) corresponding to the second flared portion (8), the lower scraper (26) corresponds to the outer ring of the lower draft roller (9) and is slidably connected therewith.

5. A draw frame high draft system according to claim 2, characterised in that, The periphery of the upper drafting roller (16) is sleeved with an upper dust removal box (19), one end of the upper dust removal box (19) is fixedly connected to the back plate (1), upper line holes (30) are formed at the lower end of the upper dust removal box (19), a third flared opening (18) is fixedly connected to the upper end of the upper dust removal box (19), upper dust suction pipes (17) are fixedly connected to the upper end of the third flared opening (18), the upper end of the upper dust suction pipe (17) is fixedly connected to the upper air suction pipe (2), and an upper scraper (29) is fixedly connected to the inside of the upper dust removal box (19) corresponding to the third flared opening (18), the upper scraper (29) corresponds to the outer ring of the upper drafting roller (16) and is slidably connected thereto.

6. A draw frame high draft system according to claim 2, characterised in that, The periphery of the pressure roller (15) is sleeved with a pressure roller dust removal box (14), one end of the pressure roller dust removal box (14) is fixedly connected to the back plate (1), pressure roller line holes (31) are formed at the middle part of the pressure roller dust removal box (14), fourth flared openings (13) are fixedly connected to the outer sides of the upper and lower ends of the pressure roller dust removal box (14), dust suction hoses (12) are fixedly connected to the fourth flared openings (13), the upper and lower dust suction hoses (12) are fixedly connected to the upper air suction pipe (2) and the lower air suction pipe (3), respectively, and pressure roller scrapers (32) are fixedly connected to the inside of the pressure roller dust removal box (14) corresponding to the fourth flared openings (13), the pressure roller scrapers correspond to the outer ring of the pressure roller (15) and are slidably connected thereto.

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