Intelligent production device and production method of low-hairiness spun silk and flax high-count high-strength blended yarn
Through the design of the intelligent production device, the problems of insufficient dyeing of blended yarns and bump impurities are solved, and the finish and color richness of the yarn are improved, ensuring the high quality and convenience of use of the product.
Patent Information
- Application Number
- CN202411546874.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2024-12-20
AI Technical Summary
The existing blended yarns are prone to insufficient dyeing and bump impurities during the dyeing process, which affects the aesthetics and use effect.
An intelligent production device for low-haired silk linen high-strength high-strength blended yarn is designed, including a braider, dipping component and lead assembly. By setting up a de-blasting cylinder, dipping tank, crimping component and wire collection mechanism, it realizes Improved yarn finish and dyeing effect.
By scraping out the yarn outer wall bumps with the jaw cylinder, dyeing management of the dyeing groove and discharge pipe, hydraulic control of the crimping assembly and the use of the wire collecting mechanism, the finish and color richness of the product are improved, ensuring the product's High quality and convenience.
Smart Images

Figure CN119162725A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of blended yarns, and in particular relates to an intelligent production device and a production method for low-hairiness silk and flax high-count and high-strength blended yarns. Background Art
[0002] Blended yarn is generally a single yarn made by blending two or more different types of fibers; existing blended yarns are generally directly blended into single yarns by blending different types of fibers, and then dyed as needed. During this process, the single yarn is prone to insufficient dyeing and bulges and impurities on the single yarn, which affects the appearance and even directly affects the use.
[0003] In order to avoid the above situation, an intelligent production device and production method for low-hairiness silk and flax high-count and high-strength blended yarn are now provided. Summary of the invention
[0004] The present invention provides an intelligent production device and a production method for low-hairiness silk and flax high-count and high-strength blended yarn, aiming to solve the problem that the existing blended yarn is generally directly blended into single yarn by blending different types of fibers, and then dyed according to needs. During this process, the single yarn is prone to insufficient dyeing and convex impurities appear on the single yarn, which affects the appearance and even directly affects the use.
[0005] The present invention is implemented as follows: an intelligent production device for low-hairiness silk and flax high-count and high-strength blended yarn comprises a yarn knitting machine, a dyeing assembly and a lead assembly: a return assembly is arranged on the outer wall of the dyeing assembly, the lead assembly comprises a base, a screw barrel is arranged on the top of the base, a spherical shell is arranged on the top of the screw barrel, and a lead mechanism is movably connected to the inner wall of the spherical shell;
[0006] The wire guide mechanism comprises a limit connecting ball movably connected to the inner wall of the spherical shell, the outer wall of the limit connecting ball is fixedly connected to a wire guide cylinder, and the outer wall of the wire guide cylinder is fixedly connected to a thorn removal cylinder; by movably connecting the inner wall of the spherical shell with the outer wall of the limit connecting ball, the wire guide direction of the wire guide cylinder and the thorn removal cylinder can be adjusted by rotation as needed;
[0007] The burr removal cylinder is a conical burr removal cylinder, and the inner wall of the small mouth end of the burr removal cylinder is provided with an annular conical blade, and the direction of the annular conical blade is opposite to that of the burr removal cylinder; through the provision of the burr removal cylinder, during the threading process, the protrusions at different protruding positions on the outer wall of the yarn can be scraped off, so as to ensure the smoothness and dyeing effect of the product after the yarn is woven, improve the product quality, and provide convenience for users.
[0008] Preferably, the dyeing assembly comprises a pool seat, the inner wall of the pool seat is provided with a plurality of partitions, and the inner wall of the pool seat is divided into a plurality of dyeing slots by the plurality of partitions;
[0009] Among them, two discharge pipes are arranged at the bottom of each dyeing tank, and a control valve is arranged at the connection between each discharge pipe and the dyeing tank; through the coordinated use of several dyeing tanks and the discharge pipes, the purpose of replacing the dye of the dyeing tank and cleaning the dyeing tank can be achieved according to the corresponding yarn dyeing needs, thereby making the color of the woven composite yarn or yarn product richer.
[0010] Preferably, a positioning hole is provided at the bottom of the base, and the top of the base and the bottom of the limiting connecting ball are fixedly connected with a screw, and the outer wall of the screw is threadedly connected to the inner wall of the screw barrel; through the connection setting of the screw and the screw barrel, the use height of the lead mechanism can be adjusted by rotating the screw barrel.
[0011] Preferably, a plurality of wire pressing assemblies are provided on the top of the pool seat corresponding to the dyeing slots, and the wire pressing assembly includes a small hydraulic rod fixedly provided on the edge of the pool seat, one end of the small hydraulic rod is fixedly connected to a rear plate, and the outer wall of the rear plate is fixedly connected to a wire pressing plate; through the setting of the wire pressing assembly, the position of the wire pressing plate is raised and lowered by controlling the small hydraulic rod, so as to realize the pressing of the yarn guided between the lead assembly and the return assembly downward to the dyeing assembly for dyeing and maintaining the dyeing position.
[0012] Preferably, the line returning assembly includes a support rod fixedly arranged on the outer wall of the pool seat, the outer wall of the support rod is fixedly connected to a wire drum, the outer wall of the wire drum is fixedly connected to a wire ring through a connecting rod, and the outer wall of the wire ring is provided with a plurality of branch wire inlet holes; through the branch wire inlet holes opened on the outer wall of the wire ring and the coordinated use with the wire drum, the yarns in all directions can be gathered and discharged to the braiding machine through the wire drum for braiding processing.
[0013] Preferably, a wire-taking mechanism is fixedly connected to the outer wall of the braiding machine, and the wire-taking mechanism includes a winding motor fixedly arranged on the braiding machine, and the output shaft of the winding motor is fixedly connected to the winding shaft via a coupling, and anti-wire-off disks are arranged at both ends of the winding shaft; through the setting of the wire-taking mechanism, the composite yarn or other products spun by the braiding machine can be wound up, which is convenient for taking.
[0014] Preferably, the outer wall of the anti-unwinding drum is provided with a protrusion, the outer wall of the protrusion is plugged into the two ends of the winding shaft, the inner wall of the winding shaft is provided with a spring block, the spring block includes two sleeves slidably connected to each other, and the two sleeves are connected by a spring, and the protrusion and the winding shaft are clamped by a spring; by setting the anti-unwinding drum, the yarn product can be prevented from falling off.
[0015] The production method of low-hairiness silk and flax high-count and high-strength blended yarn comprises the following steps:
[0016] S1. First, threading: the original yarn is passed through the wire guide barrel and the thorn removal barrel in the wire guide assembly, and then passed through the wire distribution hole and the wire bundle barrel along the wire pressing plate, and finally connected to the yarn braiding machine;
[0017] The original yarn is passed through a thread guide cylinder and a thorn removal cylinder in a thread guide assembly to remove bumps on the outside of the yarn;
[0018] S2. Replace the dye in the dyeing tank according to the corresponding yarn dyeing needs;
[0019] S3, controlling the small hydraulic rod to raise and lower the position of the wire pressing plate, thereby pressing the yarn guided between the lead-in assembly and the return assembly downward into the dyeing assembly for dyeing;
[0020] S4, start the yarn braiding machine to braid;
[0021] S5. Finally, the composite yarn or other products spun by the yarn braiding machine are wound up through the winding mechanism for easy taking.
[0022] Compared with the prior art, the embodiments of the present application have the following beneficial effects:
[0023] By setting the thorn removal cylinder, during the threading process, the protrusions at different protruding positions on the outer wall of the yarn can be scraped off to ensure the smoothness and dyeing effect of the product after braiding, improve the product quality, and provide convenience for users;
[0024] Through the use of several dyeing tanks and the discharge pipe, the dyes in the dyeing tanks can be replaced and cleaned according to the corresponding yarn dyeing needs, so that the color of the composite yarn or yarn product after weaving can be richer;
[0025] Through the setting of the wire pressing assembly, the position of the wire pressing plate is raised and lowered by controlling the small hydraulic rod, so as to press the yarn guided between the wire guide assembly and the wire return assembly downward to the dyeing assembly for dyeing and maintaining the dyeing position;
[0026] Through the wire-dividing inlet holes on the outer wall of the wire-binding ring and the use of the wire-binding barrel, the yarns in all directions can be gathered and discharged to the yarn-braiding machine through the wire-binding barrel for yarn-braiding processing;
[0027] By setting the wire taking-up mechanism, the composite yarn or other products spun by the yarn braiding machine can be wound up for easy taking. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a front view of the present invention;
[0029] Figure 2 It is a schematic diagram of the structure of the lead assembly of the present invention;
[0030] Figure 3 It is a schematic diagram of the lead wire mechanism structure of the present invention;
[0031] Figure 4 It is a schematic diagram of the structure of the impregnation assembly of the present invention;
[0032] Figure 5 It is a schematic structural diagram of a wire crimping assembly of the present invention;
[0033] Figure 6 It is a schematic diagram of the structure of the line return component of the present invention.
[0034] In the figure: 1. yarn braiding machine; 2. lead-in assembly; 201. base; 202. screw barrel; 203. spherical shell; 204. lead-in mechanism; 2041. lead-in reel; 2042. thorn removal reel; 2043. limit connecting ball; 3. dyeing assembly; 301. pool seat; 302. dyeing slot; 4. wire pressing assembly; 401. wire pressing plate; 402. rear plate; 403. small hydraulic rod; 5. wire returning assembly; 501. wire tie ring; 502. wire inlet hole; 503. wire tie reel; 504. support rod; 6. wire taking-up mechanism. DETAILED DESCRIPTION
[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.
[0036] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0037] The embodiment of the present invention provides an intelligent production device and a production method for low-hairiness silk and flax high-count and high-strength blended yarn, the intelligent production device for low-hairiness silk and flax high-count and high-strength blended yarn comprises a yarn knitting machine 1, a dyeing component 3 and a lead-in component 2: the outer wall of the dyeing component 3 is provided with a return line component 5, the lead-in component 2 comprises a base 201, a screw barrel 202 is provided on the top of the base 201, a spherical shell 203 is provided on the top of the screw barrel 202, and a lead-in mechanism 204 is movably connected to the inner wall of the spherical shell 203;
[0038] The guide wire mechanism 204 includes a limit connecting ball 2043 movably connected to the inner wall of the spherical shell 203, the outer wall of the limit connecting ball 2043 is fixedly connected to a guide wire cylinder 2041, and the outer wall of the guide wire cylinder 2041 is fixedly connected to a thorn removal cylinder 2042;
[0039] The thorn removal cylinder 2042 is a conical thorn removal cylinder, and the inner wall of the small mouth end of the thorn removal cylinder 2042 is provided with an annular conical blade, and the direction of the annular conical blade is opposite to that of the thorn removal cylinder 2042;
[0040] The dyeing assembly 3 includes a pool seat 301, the inner wall of the pool seat 301 is provided with a plurality of partitions, and the inner wall of the pool seat 301 is divided into a plurality of dyeing slots 302 by the plurality of partitions;
[0041] Wherein, two discharge pipes are arranged at the bottom of each dyeing tank 302, and a control valve is arranged at the connection between each discharge pipe and the dyeing tank 302;
[0042] A positioning hole is provided at the bottom of the base 201 , and a screw is fixedly connected to the top of the base 201 and the bottom of the limiting connection ball 2043 , and the outer wall of the screw is threadedly connected to the inner wall of the screw barrel 202 .
[0043] It should be noted that since the existing blended yarns are generally directly blended into single yarns by blending different types of fibers, and then dyed as needed, in this process, the single yarns are prone to insufficient dyeing and the appearance of bulges and impurities on the single yarns, affecting the appearance and even directly affecting the use.
[0044] Specifically, in this embodiment, this scheme is mainly through the setting and coordinated use of the yarn braiding machine 1, the dyeing component 3, the line return component 5, the wire pressing component 4 and the lead component 2; first, threading the yarn: the original yarn is passed through the wire guide tube 2041 and the thorn removal tube 2042 in the lead component 2, and passed through the wire dividing hole 502 and the wire bundle tube 503 along the wire pressing plate 401, and finally connected to the yarn braiding machine 1; wherein, the original yarn is passed through the wire guide tube 2041 and the thorn removal tube 2042 in the lead component 2 to remove the bumps on the outside of the yarn; the dye of the dyeing tank 302 is replaced according to the corresponding yarn dyeing needs; the small hydraulic rod 403 is controlled to raise and lower the position of the wire pressing plate 401, so as to realize the yarn guided between the lead component 2 and the line return component 5 is pressed down to the dyeing component 3 for dyeing; the yarn braiding machine 1 is started for braiding; finally, the composite yarn or other products spun by the yarn braiding machine 1 are wound up by the wire taking-up mechanism 6 for easy taking.
[0045] In this embodiment, by movably connecting the inner wall of the spherical shell 203 with the outer wall of the limiting connecting ball 2043, the guide direction of the guide cylinder 2041 and the thorn removal cylinder 2042 can be adjusted as needed.
[0046] In this embodiment, by setting the thorn removal cylinder 2042, during the threading process, the protrusions at different protruding positions on the outer wall of the yarn can be scraped off to ensure the smoothness and dyeing effect of the product after braiding, improve product quality, and provide convenience for users.
[0047] In this embodiment, by using several dyeing tanks 302 in conjunction with the discharge pipe, the purpose of replacing the dye in the dyeing tank 302 and cleaning the dyeing tank 302 can be achieved according to the corresponding yarn dyeing needs, thereby enriching the color of the woven composite yarn or yarn product.
[0048] In this embodiment, by connecting the screw rod and the screw barrel 202 , the height of the lead wire mechanism 204 can be adjusted by rotating the screw barrel 202 .
[0049] In a further preferred embodiment of the present invention, a plurality of wire pressing assemblies 4 are provided on the top of the pool seat 301 corresponding to the dyeing tank 302, and the wire pressing assembly 4 includes a small hydraulic rod 403 fixedly arranged on the edge of the pool seat 301, one end of the small hydraulic rod 403 is fixedly connected to a rear plate 402, and an outer wall of the rear plate 402 is fixedly connected to a wire pressing plate 401.
[0050] In this embodiment, by setting the wire pressing assembly 4, the position of the wire pressing plate 401 is raised and lowered by controlling the small hydraulic rod 403, so as to press the yarn guided between the lead assembly 2 and the return assembly 5 downward to the dyeing assembly 3 for dyeing and maintaining the dyeing position.
[0051] In a further preferred embodiment of the present invention, the line guiding assembly 5 includes a support rod 504 fixedly arranged on the outer wall of the pool seat 301, the outer wall of the support rod 504 is fixedly connected to the cable drum 503, the outer wall of the cable drum 503 is fixedly connected to the cable ring 501 through a connecting rod, and the outer wall of the cable ring 501 is arranged with a plurality of branch line inlet holes 502.
[0052] In this embodiment, by using the branching inlet hole 502 opened on the outer wall of the cable ring 501 and the cable drum 503, the yarns in all directions can be gathered and discharged to the braiding machine 1 through the cable drum 503 for braiding processing.
[0053] In a further preferred embodiment of the present invention, the outer wall of the braiding machine 1 is fixedly connected with a wire taking-up mechanism 6, and the wire taking-up mechanism 6 includes a winding motor fixedly arranged on the braiding machine 1, and the output shaft of the winding motor is fixedly connected with a winding shaft through a coupling, and anti-derailment disks are arranged at both ends of the winding shaft;
[0054] The outer wall of the anti-unwinding drum is provided with a protrusion, and the outer wall of the protrusion is plugged into the two ends of the winding shaft. The inner wall of the winding shaft is provided with a spring block, and the spring block includes two sleeves that are slidably connected to each other, and the two sleeves are connected by a spring, and the protrusion and the winding shaft are clamped by a spring.
[0055] In this embodiment, by setting the take-up mechanism 6, the composite yarn or other products spun by the yarn braiding machine 1 can be wound up for easy taking;
[0056] In this embodiment, the yarn product can be prevented from falling off by providing the anti-falling-off disc.
[0057] The production method of low-hairiness silk and flax high-count and high-strength blended yarn comprises the following steps:
[0058] S1. First, threading the yarn: the original yarn passes through the wire guide barrel 2041 and the thorn removal barrel 2042 in the wire guide assembly 2, and passes through the wire dividing hole 502 and the wire bundle barrel 503 along the wire pressing plate 401, and finally connected to the yarn braiding machine 1;
[0059] The original yarn is passed through the thread guide cylinder 2041 and the thorn removal cylinder 2042 in the thread guide assembly 2 to remove the bumps on the outside of the yarn;
[0060] S2, replacing the dye in the dyeing tank 302 according to the corresponding yarn dyeing needs;
[0061] S3, controlling the small hydraulic rod 403 to raise and lower the position of the wire plate 401, so as to press the yarn guided between the lead assembly 2 and the return assembly 5 downward into the dyeing assembly 3 for dyeing;
[0062] S4, start the yarn braiding machine 1 to braid;
[0063] S5. Finally, the composite yarn or other products spun by the yarn braiding machine 1 are wound up by the winding mechanism 6 for easy taking out.
[0064] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.
[0065] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.
[0066] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0067] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.
Claims
1. Intelligent production device for low-hairiness silk and linen high-count and high-strength blended yarn, It is characterized in that The invention comprises a yarn braiding machine (1), a dyeing assembly (3) and a thread guide assembly (2): the outer wall of the dyeing assembly (3) is provided with a thread guide assembly (5); the thread guide assembly (2) comprises a base (201); a screw barrel (202) is provided on the top of the base (201); a spherical shell (203) is provided on the top of the screw barrel (202); and a thread guide mechanism (204) is movably connected to the inner wall of the spherical shell (203); The guide wire mechanism (204) comprises a position-limiting connection ball (2043) movably connected to the inner wall of the spherical shell (203); the outer wall of the position-limiting connection ball (2043) is fixedly connected to a guide wire cylinder (2041); and the outer wall of the guide wire cylinder (2041) is fixedly connected to a thorn removal cylinder (2042); The thorn removal cylinder (2042) is a conical thorn removal cylinder, and the inner wall of the small opening end of the thorn removal cylinder (2042) is provided with an annular conical blade, and the direction of the annular conical blade is opposite to that of the thorn removal cylinder (2042).
2. The intelligent production device for low-hairiness silk and linen high-count and high-strength blended yarn according to claim 1, It is characterized in that The dyeing assembly (3) comprises a pool seat (301), the inner wall of the pool seat (301) is provided with a plurality of partitions, and the inner wall of the pool seat (301) is divided into a plurality of dyeing slots (302) by the plurality of partitions; Wherein, two discharge pipes are arranged at the bottom of each dyeing tank (302), and a control valve is arranged at the connection between each discharge pipe and the dyeing tank (302).
3. The intelligent production device for low-hairiness silk and linen high-count and high-strength blended yarn according to claim 1, It is characterized in that A positioning hole is provided at the bottom of the base (201), and a screw is fixedly connected to the top of the base (201) and the bottom of the limiting connection ball (2043), and the outer wall of the screw is threadedly connected to the inner wall of the screw barrel (202).
4. The intelligent production device for low-hairiness silk and linen high-count and high-strength blended yarn according to claim 2, It is characterized in that A plurality of wire pressing assemblies (4) are arranged on the top of the pool seat (301) corresponding to the dyeing tank (302), and the wire pressing assemblies (4) include a small hydraulic rod (403) fixedly arranged on the edge of the pool seat (301), one end of the small hydraulic rod (403) is fixedly connected to a rear plate (402), and the outer wall of the rear plate (402) is fixedly connected to a wire pressing plate (401).
5. The intelligent production device for low-hairiness silk and linen high-count and high-strength blended yarn according to claim 2, It is characterized in that The line return assembly (5) comprises a support rod (504) fixedly arranged on the outer wall of the pool seat (301), the outer wall of the support rod (504) is fixedly connected to a cable barrel (503), the outer wall of the cable barrel (503) is fixedly connected to a cable ring (501) via a connecting rod, and the outer wall of the cable ring (501) is provided with a plurality of branch line inlet holes (502) arranged in a circle.
6. The intelligent production device for low-hairiness silk and linen high-count and high-strength blended yarn according to claim 1, It is characterized in that The outer wall of the braiding machine (1) is fixedly connected to a wire taking-up mechanism (6), and the wire taking-up mechanism (6) comprises a winding motor fixedly arranged on the braiding machine (1), and the output shaft of the winding motor is fixedly connected to a winding shaft via a coupling, and anti-derailment drums are arranged at both ends of the winding shaft.
7. The intelligent production device for low-hairiness silk and linen high-count and high-strength blended yarn according to claim 6, It is characterized in that The outer wall of the anti-unwinding drum is provided with a protrusion, and the outer wall of the protrusion is plugged into the two ends of the winding shaft. The inner wall of the winding shaft is provided with a spring block, and the spring block includes two sleeves that are slidably connected to each other, and the two sleeves are connected by a spring, and the protrusion and the winding shaft are clamped by a spring.
8. The intelligent production device of low-hairiness silk and flax high-count and high-strength blended yarn according to claims 1-7, and a production method of low-hairiness silk and flax high-count and high-strength blended yarn are now provided. It is characterized in that The following steps are involved: S1. First, threading the yarn: the original yarn is passed through the wire guide barrel (2041) and the thorn removal barrel (2042) in the wire guide assembly (2), and passed through the wire distribution hole (502) and the wire bundle barrel (503) along the wire pressing plate (401), and finally connected to the yarn braiding machine (1); The original yarn is passed through a thread guide cylinder (2041) and a thorn removal cylinder (2042) in a thread guide assembly (2) to remove bumps on the outside of the yarn; S2, replacing the dye in the dyeing tank (302) according to the corresponding yarn dyeing needs; S3, controlling the small hydraulic rod (403) to raise and lower the position of the thread pressing plate (401), thereby pressing the yarn guided between the thread guide assembly (2) and the thread return assembly (5) downward into the dyeing assembly (3) for dyeing; S4, starting the yarn braiding machine (1) to perform braiding; S5. Finally, the composite yarn or other product spun by the yarn braiding machine (1) is rolled up by the yarn taking-up mechanism (6) for easy taking out.
