Yarn detection mechanism of short fiber two-for-one twister

Abstract

The utility model relates to the technical field of two-for-one twisters, in particular to a short fiber two-for-one twister yarn detecting mechanism which comprises a shell, a containing cavity is formed in the shell, a photoelectric sensor used for detecting yarn is arranged in the containing cavity, a panel used for protection is arranged at an opening of the containing cavity, and a cleaning assembly used for cleaning the panel is arranged on the shell. The cleaning assembly comprises a movable scraping plate, a driving assembly used for driving the scraping plate to move in a reciprocating mode is arranged outside the shell, a detachable cleaning plate is arranged on the scraping plate, and the scraping plate is further provided with a quick detaching assembly used for being connected with the cleaning plate. Through the movable arrangement of the scraping plate, when the batting is gathered on the panel, the batting can be separated from the panel through the movement of the scraping plate, so that the situation that when the yarn is broken or a circle of yarn is just used up, the photoelectric sensor still mistakenly considers that the yarn is detected, and the controller cannot stop the two-for-one twister in time is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of yarn detection mechanisms, in particular to a yarn detection mechanism of a staple fiber two-for-one twisting machine. Background Art

[0002] A two-for-one twister is a yarn twisting device that can achieve two twists in one turn. The twisting efficiency is several times higher than that of traditional twisting equipment. The yarn detection mechanism is a mechanism on the two-for-one twister used to detect whether the yarn is broken during the transmission process. The yarn detection mechanisms on the existing two-for-one twisters are roughly divided into two types, the first is mechanical and the second is photoelectric.

[0003] At present, the photoelectric yarn detection mechanism is mainly a photoelectric sensor fixed on one side of the yarn. The photoelectric sensor is used to detect whether there is yarn nearby. When the yarn is broken or a circle of yarn is just used up, the photoelectric sensor cannot detect the yarn, and the controller will stop the two-for-one twister. On the contrary, the photoelectric sensor can detect the yarn. The photoelectric yarn detection mechanism has the advantages of simple structure, low cost, and will not cause the yarn to be stuck, thereby not causing the two-for-one twister to malfunction. However, there are also problems in actual use. Since the lint in the workshop can easily float to the detection end of the photoelectric sensor, when the yarn is broken or a circle of yarn is just used up, the photoelectric sensor still mistakenly believes that the yarn is detected, making it impossible for the controller to stop the two-for-one twister in time, so it needs to be improved. Utility Model Content

[0004] The utility model aims to provide a yarn detection mechanism for a staple fiber two-for-one twisting machine to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A yarn detection mechanism of a staple fiber two-for-one twisting machine comprises a shell, a placement cavity is arranged in the shell, a photoelectric sensor for detecting yarn is arranged in the placement cavity, a panel for protection is arranged at the opening of the placement cavity, a cleaning component for cleaning the panel is arranged on the shell, the cleaning component comprises a movable scraper, a driving component for driving the scraper to move back and forth is arranged outside the shell, a detachable cleaning plate is arranged on the scraper, and a quick-release component for connecting the cleaning plate is also arranged on the scraper.

[0007] Preferably, notch grooves are provided on the opposite side walls of the shell along the height direction thereof, a clamping portion which moves in the corresponding notch groove is provided on the scraper, a top fixing plate and a bottom fixing plate are provided at the upper and lower ends of the shell respectively, the driving assembly comprises a rotatable rotating shaft which is relatively arranged between the top fixing plate and the bottom fixing plate, the rotating shaft is relatively arranged on the bottom fixing plate and passes through the top fixing plate, the rotating shaft thread passes through the scraper, and the two rotating shafts rotate synchronously to drive the scraper to move back and forth.

[0008] Preferably, a motor for driving the rotation of one of the two rotating shafts is provided at the top end thereof.

[0009] Preferably, the upper ends of the two rotating shafts are both arranged through the top fixed plate, the protruding ends of the rotating shafts are both provided with first pulleys, and a first connecting belt is sleeved between the two first pulleys.

[0010] Preferably, a notch is provided on one side of the scraper close to the panel, a cleaning plate can be inserted into the notch, a horizontal groove is relatively provided on one side of the cleaning plate close to the scraper, a driving groove connected to the notch is relatively provided in the scraper, and the quick-release assembly includes a rotating rod rotatable in the driving groove, and a locking rod that can be inserted into the horizontal groove is provided on the rotating rod.

[0011] Preferably, the top end of the rotating rod extends out from the upper side of the scraper, the extended end of the rotating rod is provided with a second pulley, and a second connecting belt is sleeved between the second pulleys arranged opposite to each other.

[0012] Preferably, a torsion spring is provided in the scraper for causing the locking rod to rotate out of the driving groove.

[0013] Preferably, a handle is provided at the bottom end surface of the cleaning plate.

[0014] Preferably, a gripping portion is provided at the top of the rotating rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model, through the movable setting of the scraper, when the fluff gathers on the panel, the scraper can be moved to make the fluff separate from the panel, and the fluff will not gather on the panel for a long time, so as to avoid that when the yarn breaks or a circle of yarn is just used up, the photoelectric sensor still mistakenly believes that the yarn is detected, and the controller cannot stop the twisting machine in time. Compared with the existing ones, the normal use of the photoelectric sensor will not be affected by the fluff.

[0017] 2. The utility model adopts a detachable arrangement of the cleaning plate, so that after the cleaning plate has been used for a period of time and a certain amount of lint is attached to the surface of the cleaning plate, the cleaning plate can be removed and cleaned or replaced to prevent the cleaning effect from being reduced due to the attached lint, thereby affecting the normal use of the photoelectric sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of a yarn detection mechanism of a short fiber two-for-one twisting machine.

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0020] Figure 3It is a structural schematic diagram of the shell in the utility model.

[0021] Figure 4 It is a structural schematic diagram of the scraper in the utility model.

[0022] Figure 5 It is a schematic diagram of the structure of the scraper and the cleaning plate in the utility model.

[0023] Figure 6 This is a schematic structural diagram of the scraper and cleaning plate in the utility model from another perspective.

[0024] Figure 7 for Figure 6 Enlarged view of point B in the middle.

[0025] The meaning of the symbols in the figure is:

[0026] 100, housing; 110, panel; 120, bottom fixing plate; 121, rotating shaft; 130, top fixing plate; 131, motor; 140, scraper; 150, yarn;

[0027] 200, first pulley; 201, first connecting belt;

[0028] 300, notched slot;

[0029] 400, clamping part; 410, cleaning plate; 411, handle;

[0030] 500, horizontal groove; 510, notch portion;

[0031] 600, driving groove; 610, locking rod; 620, rotating rod; 621, second pulley; 622, gripping portion; 623, second connecting belt. DETAILED DESCRIPTION

[0032] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0033] The following is combined with Figure 1-Figure 7 This embodiment is described in further detail.

[0034] See also Figure 1-Figure 4A yarn detection mechanism of a short fiber two-for-one twisting machine in this embodiment includes a shell 100, a placement cavity is provided in the shell 100, a photoelectric sensor for detecting a yarn 150 is provided in the placement cavity, a panel 110 for protection is provided at the opening of the placement cavity, a cleaning component for cleaning the panel 110 is provided on the shell 100, the cleaning component includes a movable scraper 140, a driving component for driving the scraper 140 to reciprocate is provided outside the shell 100, a detachable cleaning plate 410 is provided on the scraper 140, and a quick-release component for connecting the cleaning plate 410 is also provided on the scraper 140.

[0035] The yarn detection mechanism in this embodiment further includes a controller electrically connected to the photoelectric sensor, and the controller can be used to control the two-for-one twisting machine to stop when the photoelectric sensor does not detect the yarn 150. It is an existing structure, so it will not be described in detail;

[0036] The panel 110 is made of a transparent material, which will not interfere with the operation of the photoelectric sensor. Through the arrangement of the panel 110, the fluff in the outside world will not directly contact the photoelectric sensor, but will gather on the panel 110.

[0037] Among them, by the movable setting of the scraper 140, when the fluff gathers on the panel 110, the scraper 140 can be moved to make the fluff separate from the panel 110, and the fluff will not gather on the panel 110 for a long time, so as to avoid that when the yarn 150 breaks or a circle of yarn 150 is just used up, the photoelectric sensor still mistakenly believes that the yarn 150 is detected, and the controller cannot stop the twisting machine in time. Compared with the existing one, the yarn detection mechanism in this embodiment will not affect the normal use of the photoelectric sensor due to the fluff;

[0038] The drive assembly is provided so that the scraper 140 can reciprocate on the housing 100, thereby separating the fluff and dust gathered on the panel 110, thereby reducing the influence of the fluff on the photoelectric sensor;

[0039] The cleaning plate 410 is detachable so that when a certain amount of fluff is attached to the surface of the cleaning plate 410 after a period of use, the cleaning plate 410 can be removed and cleaned or replaced to prevent the cleaning effect from being reduced due to the attached fluff, thereby affecting the normal use of the photoelectric sensor.

[0040] The quick-release assembly enables the cleaning plate 410 to be quickly installed and removed from the scraper 140 , thereby shortening the time spent on installing and removing the cleaning plate 410 .

[0041] like Figure 1-Figure 4As shown, in this embodiment, notch grooves 300 are relatively provided on the opposite side walls of the shell 100 along its height direction, and the scraper 140 is provided with a clamping portion 400 located and moving in the corresponding notch groove 300; the upper and lower ends of the shell 100 are respectively provided with a top fixing plate 130 and a bottom fixing plate 120, and the driving component includes a rotatable rotating shaft 121 relatively arranged between the top fixing plate 130 and the bottom fixing plate 120, the rotating shaft 121 is threaded through the scraper 140, and the two rotating shafts 121 rotate synchronously to drive the scraper 140 to move back and forth.

[0042] In this embodiment, due to the cooperation between the notch groove 300 and the clamping portion 400, the scraper 140 can be restricted when moving on the housing 100. When the rotating shaft 121 rotates forward, the scraper 140 can move toward the bottom fixing plate 120. When the rotating shaft 121 rotates reversely, the scraper 140 can move away from the bottom fixing plate 120, so as to scrape and clean the panel 110, so that the fluff is separated from the panel 110, and the fluff is prevented from affecting the normal use of the photoelectric sensor.

[0043] The bottom fixing plate 120 and the top fixing plate 130 are both provided with bearings for rotatably mounting the rotating shaft 121 , thereby preferably realizing the rotatable setting of the rotating shaft 121 between the top fixing plate 130 and the bottom fixing plate 120 .

[0044] like Figure 1 As shown, in this embodiment, a motor 131 for driving the rotation of one of the two rotating shafts 121 is disposed at the top end thereof.

[0045] In this embodiment, the motor 131 is set so that when the motor 131 is started, it can drive the rotating shaft 121 to rotate, thereby moving the scraper 140 to clean the dust and fluff on the panel 110;

[0046] The motor 131 is detachably mounted on the upper end surface of the top fixing plate 130 via a motor bracket (not shown in the figure), and the output shaft of the motor 131 is fixedly connected to the rotating shaft 121 , thereby realizing the rotation of the rotating shaft 121 along with the motor 131 .

[0047] like Figure 1-Figure 2 As shown, in this embodiment, the upper ends of the two rotating shafts 121 are both arranged to penetrate the top fixed plate 130, and the protruding ends of the rotating shafts 121 are both provided with first pulleys 200, and a first connecting belt 201 is sleeved between the two first pulleys 200.

[0048] In this embodiment, by providing the first connecting belt 201 and the first pulley 200 , the two rotating shafts 121 can rotate synchronously, and at the same time, both sides can be evenly stressed at the same time, so that the movement of the scraper 140 is relatively stable.

[0049] like Figure 1-Figure 7 As shown, in this embodiment, a notch portion 510 is provided on the side of the scraper 140 close to the panel 110, and the cleaning plate 410 can be extended into the notch portion 510. A horizontal groove 500 is relatively provided on the side of the cleaning plate 410 close to the scraper 140. A driving groove 600 connecting to the notch portion 510 is relatively provided in the scraper 140. The quick release assembly includes a rotating rod 620 that is arranged in the driving groove 600 and can rotate, and a locking rod 610 that can extend into the horizontal groove 500 is provided on the rotating rod 620.

[0050] In this embodiment, when the cleaning plate 410 and the scraper 140 are connected, first, the cleaning plate 410 is held and inserted from the lower end of the notch 510, and then, the locking rod 610 is rotated from the driving groove 600 to the horizontal groove 500 by rotating the rotating rod 620, thereby realizing the installation of the cleaning plate 410 on the scraper 140;

[0051] like Figure 6 As shown, in this embodiment, the top end of the rotating rod 620 extends out of the upper side of the scraper 140, and a second pulley 621 is provided at the extended end of the rotating rod 620, and a second connecting belt 623 is sleeved between the opposite second pulleys 621.

[0052] In this embodiment, by setting the second pulley 621 and the second connecting belt 623, the relatively set rotating rods 620 can rotate synchronously, and then the locking rod 610 can rotate synchronously and extend into or out of the horizontal groove 500. When the locking rod 610 is synchronously extended into the horizontal groove 500, both sides of the cleaning plate 410 can be affected by the force of the locking rod 610. When the cleaning plate 410 moves with the scraper 140, the force on both sides can be more balanced, and there will be no skewed extension or extension.

[0053] like Figure 1-Figure 6 As shown, in this embodiment, a torsion spring is provided inside the scraper 140 for driving the rotating rod 620 to rotate so that the locking rod 610 rotates out of the driving groove 600 .

[0054] In this embodiment, by setting the torsion spring, the rotating rod 620 can keep the locking rod 610 in a state of rotating out of the driving groove 600, that is, the locking rod 610 is always in the horizontal groove 500, so that the cleaning plate 410 is installed on the scraper 140. When the locking rod 610 needs to be rotated, an additional force needs to be applied to overcome the torsion of the torsion spring to rotate the locking rod 610. As a result, the locking rod 610 will not rotate accidentally in the horizontal groove 500, resulting in the accidental release of the connection between the scraper 140 and the cleaning plate 410.

[0055] like Figure 4 As shown, in this embodiment, a handle 411 is provided at the bottom end surface of the cleaning plate 410 .

[0056] In this embodiment, the handle 411 is provided so that the cleaning plate 410 can be moved by holding the handle 411 , which makes the process of moving the cleaning plate 410 more convenient.

[0057] like Figure 6 As shown, in this embodiment, a gripping portion 622 is provided at the top of the rotating rod 620 .

[0058] In this embodiment, the holding portion 622 is provided to increase the force application points when driving the rotating rod 620 to rotate, thereby facilitating operation.

[0059] Working principle: When the panel 110 needs to be cleaned, first, hold the cleaning plate 410 and extend it from the lower end of the notch 510, then, by rotating the rotating rod 620, the locking rod 610 is rotated from the driving groove 600 into the horizontal groove 500, thereby realizing the installation of the cleaning plate 410 on the scraper 140, and then start the motor 131 to drive the scraper 140 to move back and forth between the top fixed plate 130 and the bottom fixed plate 120, so that the fluff on the panel 110 is detached to prevent the fluff from affecting the normal detection of the yarn 150 by the photoelectric sensor.

Claims

1. A yarn detection mechanism for a short fiber two-for-one twisting machine, characterized in that: The invention comprises a housing (100), wherein a placement cavity is provided in the housing (100), wherein a photoelectric sensor for detecting the yarn (150) is provided in the placement cavity, and a panel (110) for protection is provided at the opening of the placement cavity, and a cleaning component for cleaning the panel (110) is provided on the housing (100), wherein the cleaning component comprises a movable scraper (140), and a driving component for driving the scraper (140) to reciprocate is provided outside the housing (100), and a detachable cleaning plate (410) is provided on the scraper (140), and a quick-release component for connecting the cleaning plate (410) is also provided on the scraper (140).

2. A yarn detection mechanism for a staple fiber two-for-one twisting machine according to claim 1, characterized in that: Notch grooves (300) are arranged on opposite side walls of the housing (100) along the height direction thereof, a clamping portion (400) is arranged on the scraper (140) and is located and moves in the corresponding notch groove (300), a top fixing plate (130) and a bottom fixing plate (120) are arranged at the upper and lower ends of the housing (100), respectively, and a driving component comprises a rotating shaft (121) which is rotatable and relatively arranged between the top fixing plate (130) and the bottom fixing plate (120), the rotating shaft (121) is relatively arranged on the bottom fixing plate (120) and passes through the top fixing plate (130), the rotating shaft (121) is threadedly arranged to pass through the scraper (140), and the two rotating shafts (121) rotate synchronously to drive the scraper (140) to reciprocate.

3. A yarn detection mechanism for a staple fiber two-for-one twisting machine according to claim 2, characterized in that: A motor (131) for driving the rotation of one of the two rotating shafts (121) is provided at the top end thereof.

4. A yarn detection mechanism for a staple fiber two-for-one twisting machine according to claim 3, characterized in that: The upper ends of the two rotating shafts (121) are both arranged to penetrate the top fixed plate (130), the protruding ends of the rotating shafts (121) are both provided with first belt pulleys (200), and a first connecting belt (201) is sleeved between the two first belt pulleys (200).

5. The yarn detection mechanism of the short fiber two-for-one twisting machine according to claim 1, characterized in that: A notch portion (510) is provided on one side of the scraper (140) close to the panel (110), and the cleaning plate (410) can be inserted into the notch portion (510). A horizontal groove (500) is provided on one side of the cleaning plate (410) close to the scraper (140). A driving groove (600) communicating with the notch portion (510) is provided in the scraper (140). The quick-release assembly includes a rotating rod (620) that is rotatable and is disposed in the driving groove (600). A locking rod (610) that can be inserted into the horizontal groove (500) is provided on the rotating rod (620).

6. A yarn detection mechanism for a staple fiber two-for-one twisting machine according to claim 5, characterized in that: The top end of the rotating rod (620) extends out of the upper side of the scraper (140), and a second belt pulley (621) is provided at the extended end of the rotating rod (620). A second connecting belt (623) is sleeved between the second belt pulleys (621) arranged opposite to each other.

7. A yarn detection mechanism for a staple fiber two-for-one twisting machine according to claim 6, characterized in that: A torsion spring for causing the locking rod (610) to rotate out of the driving groove (600) is provided inside the scraper (140).

8. The yarn detection mechanism of a staple fiber two-for-one twisting machine according to claim 1, characterized in that: A handle (411) is provided at the bottom end surface of the cleaning plate (410).

9. The yarn detection mechanism of a staple fiber two-for-one twisting machine according to claim 7, characterized in that: A gripping portion (622) is provided at the top end of the rotating rod (620).

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