Traction type regenerated cotton opening device and opening method thereof

Abstract

The invention belongs to the technical field of regenerated cotton production, and particularly relates to a traction type regenerated cotton opening device and an opening method thereof. A lower cover plate is arranged below the licker-in, a cotton feeding plate is arranged at one end of the lower cover plate, a cotton feeding roller is arranged on the cotton feeding plate in a matched mode, a carding needle plate is arranged on the lower cover plate, a needle row is arranged on the carding needle plate, and the needle row is fixed to a fixing frame through a fixing bolt. The carding needle plate and the licker-in are combined, secondary opening on yarn or cloth by one opening unit is achieved, the problem that opening is not thorough is solved, secondary opening is softer than primary opening, the effect is better, fiber damage is small, the length of regenerated cotton fibers can be increased, and regenerated cotton is wider in application range and more valuable.

Description

Technical Field

[0001] The invention belongs to the technical field of regenerated cotton production, and specifically relates to a method for opening regenerated cotton from spinning waste or clothing scraps, and specifically relates to a pulling type regenerated cotton opening device and an opening method thereof. Background Art

[0002] Recycled cotton is made by recycling discarded cotton, industrial scraps, and cloth and yarn ends from textile enterprises. The environmental pollution caused by waste textiles is becoming increasingly prominent. With the development of the textile circular economy, the reusability, recyclability and repairability of products have attracted much attention. Various countries have introduced policies to encourage the recycling of waste textiles. my country vigorously advocates the circular economy, and the production and utilization of recycled cotton also embodies this spirit; at the same time, recycled cotton has also brought new business opportunities to the textile industry. Many companies target the market and seize opportunities to turn waste into treasure, vigorously expand the market, and make recycled cotton a new profit point for companies.

[0003] As people's awareness of environmental protection and sustainable development increases, in order to enhance the company's "green" and "environmentally friendly" brand influence and product market competitiveness, the recycling of waste textile resources has become a necessary path for sustainable development.

[0004] At present, most recycled cotton equipment at home and abroad adopts the method of loosening and combing by holding the licker-in rod with the cotton feeding plate and the cotton feeding roller. After combing, the thread ends or cloth pieces are thrown onto the cover plate by the centrifugal force of the licker-in roller, and blown out along the lower cover plate under the action of the airflow of the licker-in rod. The whole combing process is combed at only one point. In order to better decompose the yarn or cloth pieces, the existing recycled cotton equipment mostly adopts a multi-unit method, generally 4-6 combing units, but the shape of the yarn or cloth pieces after combing becomes smaller and smaller as time goes on. The cotton feeding roller and the cotton feeding plate cannot hold them, and the combing effect is very poor. In addition, there are still a large number of unopened thread ends or cloth pieces in the last unit.

[0005] In summary, the development of a multi-point opening method can reduce the thread end rate and solve the problem that the recycled cotton opening machine cannot fully decompose the yarn into single fibers, which is of great significance.

[0006] Chinese patent CN112742568B discloses a waste cloth processing device for processing rags into recycled cotton, comprising a fuselage, a shredding chamber is provided in the upper wall of the fuselage, a shredding device for shredding waste cloth is provided in the shredding chamber, and the shredding device comprises a pulley chamber arranged at the rear side of the shredding chamber; the present invention is provided with a shredding device, which can shred the waste cloth by driving the shredding wheel 2 and the shredding wheel 1 to rotate, thereby making the subsequent processing of recycled cotton more convenient; the present invention is provided with a pneumatic device, which can shred the shredded cloth in the pneumatic chamber by rotating a power fan The recycled cotton is transported to the vibration chamber for processing, thereby making the fabric transportation more complete; the present invention is provided with a transport device and an extrusion device, which can transport the recycled cotton by driving the conveyor belt and squeeze the recycled cotton by the extrusion block. This patent is a waste fabric processing device for processing rags into recycled cotton, which is a device for chopping the cloth blocks. The recycled cotton processed by this technology has its fiber length shortened by chopping, and can only be used as a filler, and cannot be used for re-spinning fibers. The products produced by this invention mechanism only need to be chopped and do not care about the fiber length. This patented product cannot be used for spinning recycled cotton with high requirements for fiber length.

[0007] Chinese patent CN112705453A discloses a regenerated cotton flowering machine, including a frame, a screw pull rod assembly, a transmission mechanism and a dust removal mechanism. The frame includes a material conveying bin and a dust screening bin. The material conveying bin is located at the upper end of the dust screening bin. The material conveying bin includes a feed bin, a middle-end processing bracket and a discharge bin. The feed bin, the middle-end processing bracket and the discharge bin are connected one by one to form the whole frame body. The dust removal mechanism is arranged in the frame. The material is processed by the screw pull rod assembly. The dust separated during the processing is discharged through the dust removal mechanism. The transmission mechanism is arranged on both sides of the frame and drives the screw pull rod assembly to rotate. This patent is mainly used for the dust removal mechanism in the process of regenerated cotton, and it is impossible to open the yarn or cloth into a single fiber state for spinning. Summary of the invention

[0008] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a pulling type regenerated cotton opening device and an opening method thereof. The combing needle plate of the present invention is combined with the licker-in stick to realize secondary opening of the yarn or cloth by one opening unit, thereby solving the problem of incomplete opening. The second opening is softer than the first opening, with better effect and less fiber damage, which is beneficial to increasing the length of the regenerated cotton fiber, making the application range of the regenerated cotton wider and more valuable.

[0009] The pulling type regenerated cotton opening device described in the present invention comprises a licker-in stick, a lower cover plate is arranged below the licker-in stick, a cotton feeding plate is arranged at one end of the lower cover plate, a cotton feeding roller is arranged in conjunction with the cotton feeding plate, a combing needle plate is arranged on the lower cover plate, a needle row is arranged on the combing needle plate, and the needle row is fixed to a fixing frame by fixing bolts.

[0010] The fixing frame and the lower cover plate are fixed on the original equipment wall plate.

[0011] A first dividing needle plate and a second dividing needle plate are separately arranged 50 mm below the cotton feeding plate near the lower cover plate, and the first dividing needle plate and the second dividing needle plate have the same structure.

[0012] The first and second carding needle plates are connected and fixed to the fixing frame by fixing bolts respectively.

[0013] The carding needle plate and the fixing frame are fixed with 6mm fixing bolts, and the interval between the two fixing bolts is 100mm to prevent deformation. The carding needle plate and the fixing bolts are fixed with anti-loosening nuts.

[0014] A needle row is arranged above the first and second dividing needle plates, a sawtooth needle cloth is arranged on the licker-in, a gap of 0.2mm-2mm is arranged between the needle tip of the needle row and the needle tip of the sawtooth needle cloth, and the needle tips are in opposite directions.

[0015] There is a 0.2mm-2mm gap between the needle tips of the needle row and the needle tips of the sawtooth needle clothing, and the tooth tips are in opposite directions, so that the fibers are pulled against each other during operation.

[0016] The needle row comprises a first needle row and a second needle row, the first needle row is arranged on the first dividing needle plate, and the second needle row is arranged on the second dividing needle plate.

[0017] The needle row is zigzag shaped.

[0018] The tooth density of the needle row is 60-100 teeth / square inch.

[0019] The first combing needle plate is composed of 1 to 4 single combing needle plates; the second combing needle plate is composed of 1 to 4 single combing needle plates.

[0020] The carding needle plate is made of aluminum alloy profile, and a bolt slide groove is provided in the middle of the carding needle plate to facilitate the tightening of the fixing bolts.

[0021] The fixing frame is provided with a fixing hole. When in use, the tail of the fixing bolt is inserted into the bolt slide groove of the carding needle plate, and the bolt rod passes through the fixing hole of the fixing frame and is fixed with a nut.

[0022] The cotton feeding roller comprises an upper cotton feeding roller and a lower cotton feeding roller, and the upper cotton feeding roller is connected with the cotton feeding plate.

[0023] The needle row is arranged on the inner side of the lower cover plate, and the fixing frame is arranged on the outer side of the lower cover plate; the fixing frame is obtained by bending a 10mm iron plate at 168 degrees.

[0024] The combing needle plate is fixed on a fixing frame bent from a 10 mm iron plate, the bent iron plate is not easy to deform and bend, and at the same time, the combing needle row and the pricking stick are concentric circles, and the combing needle row and the pricking stick maintain a fixed distance.

[0025] The method for using the pulling type regenerated cotton opening device is as follows: the unopened yarn or cloth piece is fed into the cotton feeding plate through the upper cotton feeding roller and the lower cotton feeding roller; the cotton feeding plate and the upper cotton feeding roller hold one end of the yarn or cloth piece, and the yarn or cloth piece enters between the licker-in stick and the lower cover plate through the rotation of the licker-in stick; the serrated needle cloth on the licker-in stick and the needle row on the combing needle plate open and comb the unopened yarn or cloth piece into opened single fibers and then discharge them.

[0026] The method for using the pulling type regenerated cotton opening device is that the yarn or cloth piece that has been initially opened by the cotton feeding plate reaches the first combing needle plate and then reaches the second combing needle plate. At the first combing needle plate and the second combing needle plate, the yarn or cloth piece is simultaneously penetrated by the serrated needle cloth on the licker-in stick and the needle row on the combing needle plate. Through the relative movement of the serrated needle cloth and the needle row, the yarn or cloth piece is further pulled and opened.

[0027] The present invention adds a carding needle plate and belongs to a pulling free opening method.

[0028] In the pulling type regenerated cotton opening device described in the present invention, the yarn or cloth piece passes through the cotton feeding roller and enters the licker-in above the cotton feeding plate. The cotton feeding plate and the upper cotton feeding roller hold one end of the yarn or cloth piece, and the other end is decomposed into small segments or small cloth pieces under the action of the licker-in serrated needle cloth.

[0029] The needle row and the pricking stick are concentric circles, the needle tips of the needle row and the serrated needle cloth on the pricking stick are in opposite directions, and a gap of 0.2-2mm is maintained. After the yarn or cloth is initially loosened by the cotton feeding plate, part of it enters the needle row and part of it enters the pricking stick under the action of centrifugal force. The needle row and the pricking stick have a pulling effect on the yarn or cloth, so that the cloth is further decomposed into yarn, and the yarn is further untwisted into single fibers, thereby achieving the effect of loosening.

[0030] The licker-in stick and the cotton feeding plate interact with each other, the carding needle plate interacts with the licker-in stick, the yarn or the cloth piece is pulled and opened under the dual action, and the opening effect is better.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The invention overcomes the problem that the existing regenerated cotton opening machine is not completely opened, a large number of thread ends or cloth pieces flow into the next process, causing the card clothing of the machine in the next process to be worn or damaged, and reduces the cost.

[0033] The present invention reduces the number of opening and combing units and reduces the investment cost of a regenerated cotton opening machine.

[0034] The invention increases the opening and untwisting process of the yarn or the cloth piece by arranging a carding needle plate below the licker-in and the cotton feeding plate, has a simple structure and obvious effect.

[0035] The licker-in and the combing needle plate in the present invention have no holding effect during the combing and opening process, and are free pulling and opening, so the yarn or cloth opening effect is better, the fiber damage is small, and it is beneficial to increase the length of the regenerated cotton fiber, so that the application range of the regenerated cotton is wider and more valuable. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic structural diagram of the regenerated cotton opening device of the present invention.

[0037] Figure 2 A partially enlarged schematic diagram of the structure of the regenerated cotton opening device according to the present invention.

[0038] Figure 3 Schematic diagram of the structure of the second needle row.

[0039] Figure 4 Thread end diagrams of the waste yarn test samples No. 1, No. 2 and No. 3 opened by the device of the present invention.

[0040] Figure 5 Thread end diagrams of the waste yarn test samples No. 1, No. 2 and No. 3 which have not been opened by the device of the present invention.

[0041] In the figure, 1, pricking stick; 2, single fiber after opening; 3, lower cover plate; 4-1, first combing needle plate; 4-2, second combing needle plate; 5, fixing bolt; 6, fixing frame; 7, cotton feeding plate; 8-1, upper cotton feeding roller; 8-2, lower cotton feeding roller, 9, unopened yarn or cloth, 10-1, first needle row, 10-2, second needle row, 11, serrated needle clothing, 12, bolt slide. DETAILED DESCRIPTION

[0042] The present invention will be further described below in conjunction with embodiments, but the protection scope of the present invention is not limited thereto.

[0043] Unless otherwise specified, all components used in the examples are machined and commercially available.

[0044] Example 1

[0045] The pulling type regenerated cotton opening device described in the present invention comprises a licker-in stick 1, a lower cover plate 3 is arranged below the licker-in stick 1, a cotton feeding plate 7 is arranged at one end of the lower cover plate 3, a cotton feeding roller 8 is arranged in conjunction with the cotton feeding plate 7, a combing needle plate 4 is arranged on the lower cover plate 3, a needle row 10 is arranged on the combing needle plate 4, and the needle row 10 is fixed to a fixing frame 6 by a fixing bolt 5.

[0046] The fixing frame 6 and the lower cover plate 3 are fixed on the original equipment wall plate.

[0047] A first carding pin plate 4-1 and a second carding pin plate 4-2 are separately arranged 50 mm below the lower cover plate 3 and the cotton feeding plate 7. The first carding pin plate 4-1 and the second carding pin plate 4-2 have the same structure.

[0048] The first carding needle plate 4 - 1 and the second carding needle plate 4 - 2 are connected and fixed to the fixing frame 6 by fixing bolts 5 respectively.

[0049] The carding needle plate 4 and the fixing frame 6 are fixed with 6mm fixing bolts, and the interval between the two fixing bolts 5 is 100mm to prevent deformation. The carding needle plate 4 and the fixing bolts 5 are fixed with anti-loosening nuts.

[0050] A needle row 10 is arranged above the first and second dividing needle plates 4-1 and 4-2, and a serrated needle cloth 11 is arranged on the licker-in 1. A gap of 0.2mm-2mm is arranged between the needle tips of the needle row 10 and the needle tips of the serrated needle cloth 11, and the needle tips are in opposite directions.

[0051] The needle row 10 includes a first needle row 10-1 and a second needle row 10-2. The first needle row 10-1 is arranged on the first dividing needle plate 4-1, and the second needle row 10-2 is arranged on the second dividing needle plate 4-2.

[0052] The needle row 10 is zigzag shaped.

[0053] The tooth density of the needle row 10 is 60-100 teeth / square inch.

[0054] The first combing needle plate 4-1 is composed of 1 to 4 single combing needle plates; the second combing needle plate 4-2 is composed of 1 to 4 single combing needle plates.

[0055] The carding needle plate 4 is an aluminum alloy profile, and a bolt slide groove 12 is provided in the middle of the carding needle plate 4 to facilitate the tightening of the fixing bolt 5.

[0056] The fixing hole is arranged on the fixing frame 6. When in use, the tail of the fixing bolt 5 is inserted into the bolt slot 12 of the carding needle plate 4, and the bolt rod is fixed with a nut after passing through the fixing hole of the fixing frame 6.

[0057] The cotton feeding roller 8 includes an upper cotton feeding roller 8 - 1 and a lower cotton feeding roller 8 - 2 , and the upper cotton feeding roller 8 - 1 is connected to the cotton feeding plate 7 .

[0058] The needle row 10 is arranged on the inner side of the lower cover plate 3 , and the fixing frame 6 is arranged on the outer side of the lower cover plate 3 .

[0059] The fixing frame 6 is obtained by bending a 10 mm iron plate by 168°.

[0060] The combing needle plate 4 is fixed on a fixing frame 6 which is bent from a 10 mm iron plate. The bent iron plate is not easily deformed and bent. At the same time, the combing needle row 4 and the pricking rod 1 are concentric circles, and the combing needle row 4 and the pricking rod 1 maintain a fixed distance.

[0061] The method for using the pulling type regenerated cotton opening device is as follows: the unopened yarn or cloth piece 9 is fed into the cotton feeding plate 7 through the upper cotton feeding roller 8-1 and the lower cotton feeding roller 8-2; the cotton feeding plate 7 and the upper cotton feeding roller 8-1 hold one end of the yarn or cloth piece 9; the licker-in rod 1 rotates, and the yarn or cloth piece enters between the licker-in rod 1 and the lower cover plate 3; the serrated needle clothing 11 on the licker-in rod 1 and the needle row 10 on the combing needle plate 4 open and comb the unopened yarn or cloth piece 9 into opened single fibers 2 and then discharge them.

[0062] The method for using the pulling type regenerated cotton opening device is that the yarn or cloth piece that has been initially opened by the cotton feeding plate 7 reaches the first combing needle plate 4-1, and then reaches the second combing needle plate 4-2. At the first combing needle plate 4-1 and the second combing needle plate 4-2, the yarn or cloth piece is simultaneously penetrated by the serrated needle clothing 11 on the licker-in 1 and the needle row 10 on the combing needle plate 4. Through the relative movement of the serrated needle clothing 11 and the needle row 10, the yarn or cloth piece is further pulled and opened.

[0063] The comparative test of opening recycled cotton is as follows.

[0064] The waste yarn and woven fabric that have not been opened in this embodiment and the waste yarn and woven fabric that have been opened in this embodiment were sampled and placed in a constant temperature and humidity laboratory for treatment. Three sub-samples were taken from each of the two groups of samples, and the fibers and thread ends in the sub-samples were separated, weighed, and the thread end rate was calculated. Among them, Figure 4 The following are the thread end diagrams of the waste yarn test samples No. 1, No. 2 and No. 3 which are opened by the device of the present invention; Figure 5 The yarn end diagrams of the waste yarn test samples No. 1, No. 2, and No. 3 that have not been opened by the device of the present invention are shown in Table 1 for the opening effects of the waste yarn that has not been opened by the present embodiment and has been opened by the present embodiment; the opening effect test data of the woven fabric that has not been opened by the present embodiment and has been opened by the present embodiment are shown in Table 2.

[0065]

[0066]

[0067] By comparing the experimental data of waste yarn in Table 1, after the opening of the device of the present invention, the opening effect of waste yarn increased by 9.94%, and the thread end rate decreased by 13.29%. By comparing the experimental data of woven fabric in Table 2, after the opening of the device of the present invention, the opening effect of waste fabric increased by 16.66%, and the cloth block rate decreased by 50%. The opening device of the present invention has better effect.

[0068] Based on the above data, the opening device and method described in the present invention can better open the yarn or cloth with less damage to the fiber, and can effectively increase the length of the regenerated cotton fiber.

[0069] The above contents are only preferred embodiments of the method described in the present invention and cannot be considered to limit the scope of the present invention. The present invention is not limited to the above examples. Equal changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention should all fall within the scope of the present invention. The scope of the present invention is not limited by the above description. Any figure mark should not be regarded as limiting the claims involved. For those skilled in the art, without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms, which all fall within the scope of the present invention.

Claims

1. A pulling type regenerated cotton opening device, comprising a licker (1), characterized in that: A lower cover plate (3) is arranged below the pricking rod (1), a cotton feeding plate (7) is arranged at one end of the lower cover plate (3), a cotton feeding roller (8) is matched with the cotton feeding plate (7), a carding needle plate (4) is arranged on the lower cover plate (3), a needle row (10) is arranged on the carding needle plate (4), and the needle row (10) is fixed to the fixing frame (6) by fixing bolts (5).

2. The pulling type regenerated cotton opening device according to claim 1 is characterized in that: A first combing needle plate (4-1) and a second combing needle plate (4-2) are separately arranged 50 mm below the lower cover plate (3) and close to the cotton feeding plate (7); the first combing needle plate (4-1) and the second combing needle plate (4-2) have the same structure.

3. The pulling type regenerated cotton opening device according to claim 2 is characterized in that: A needle row (10) is provided above the first dividing needle plate (4-1) and the second dividing needle plate (4-2), a sawtooth needle cloth (11) is provided on the pricking stick (1), a gap of 0.2 mm to 2 mm is provided between the needle tips of the needle row (10) and the needle tips of the sawtooth needle cloth (11), and the needle tips are in opposite directions.

4. The pulling type regenerated cotton opening device according to claim 2, characterized in that: The first combing needle plate (4-1) is composed of 1 to 4 single combing needle plates; the second combing needle plate (4-2) is composed of 1 to 4 single combing needle plates.

5. The pulling type regenerated cotton opening device according to claim 1, characterized in that: The tooth density of the needle row (10) is 60-100 teeth / square inch.

6. The pulling type regenerated cotton opening device according to claim 1, characterized in that: The combing needle plate (4) is an aluminum alloy profile, and a bolt slide groove (12) is provided in the middle of the combing needle plate (4).

7. The pulling type regenerated cotton opening device according to claim 1, characterized in that: The cotton feeding roller (8) comprises an upper cotton feeding roller (8-1) and a lower cotton feeding roller (8-2), and the upper cotton feeding roller (8-1) is connected to the cotton feeding plate (7).

8. The pulling type regenerated cotton opening device according to claim 1, characterized in that: The needle row (10) is arranged on the inner side of the lower cover plate (3), and the fixing frame (6) is arranged on the outer side of the lower cover plate (3); the fixing frame (6) is obtained by bending a 10 mm iron plate at 168 degrees.

9. A method for using the pulling type regenerated cotton opening device according to claim 1, characterized in that: The unopened yarn or cloth piece (9) is fed into the cotton feeding plate (7) through the upper cotton feeding roller (8-1) and the lower cotton feeding roller (8-2). The cotton feeding plate (7) and the upper cotton feeding roller (8-1) hold one end of the yarn or cloth piece (9). The yarn or cloth piece enters between the pricking stick (1) and the lower cover plate (3) through the rotation of the pricking stick (1). The sawtooth needle cloth (11) on the pricking stick (1) and the needle row (10) on the combing needle plate (4) open and comb the unopened yarn or cloth piece (9) into opened single fibers (2) and then discharge them.

10. The method for using the pulling type regenerated cotton opening device according to claim 9, characterized in that: After being preliminarily opened by the cotton feeding plate (7), the yarn or cloth piece reaches the first combing needle plate (4-1) and then reaches the second combing needle plate (4-2). At the first combing needle plate (4-1) and the second combing needle plate (4-2), the yarn or cloth piece is simultaneously penetrated by the sawtooth needle cloth (11) on the pricking rod (1) and the needle row (10) on the combing needle plate (4). The yarn or cloth piece is further pulled and opened by the relative movement of the sawtooth needle cloth (11) and the needle row (10).

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