Two-for-one twister emergency braking mechanism and control method thereof

Abstract

The invention discloses a two-for-one twister emergency braking mechanism which comprises a mounting frame, a swing frame, a first driving assembly, a second driving assembly, a detection assembly and a switch assembly, the detection assembly comprises a rotating roller and a sensor, yarn passes through the surface of the rotating roller before being collected to a yarn bobbin, and the sensor is used for sensing whether the rotating roller rotates or not. Through the arrangement of the detection assembly, when an abnormal state occurs, rotation of the yarn bobbin can be braked immediately, so that yarn on the yarn bobbin is prevented from flying, and the safety of a work site is improved.

Description

Technical Field

[0001] The invention relates to the technical field of a two-for-one twister, and in particular to an emergency braking mechanism of a two-for-one twister and a control method thereof. Background Art

[0002] A two-for-one twister is a device that processes and bonds multiple single threads into strands. It usually includes a frame, a twisting part, a winding and forming part, and a take-up part. The twisting part, the winding and forming part, and the take-up part are installed on the frame respectively. The twisting part is used to twist the yarn, the winding and forming part is used to wind the yarn into shape, and the take-up part is used to collect the formed yarn.

[0003] During the operation of the take-up part, if the yarn is suddenly interrupted, the yarn bobbin for collecting the yarn will continue to rotate, which will cause the yarn to separate from the yarn bobbin and cause the yarn to fly. If the flying yarn is wound into the rotating parts of the double twister, it may cause damage to the machine and pose a safety hazard. Summary of the invention

[0004] One of the purposes of the present invention is to provide an emergency brake mechanism for a two-for-one twisting machine, which can brake the rotation of a yarn tube immediately when the yarn is suddenly interrupted, so as to prevent the yarn on the yarn tube from flying and improve the safety of the work site.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An emergency brake mechanism for a two-for-one twisting machine, comprising:

[0007] A mounting frame, provided with a mounting shaft, the mounting frame having a first contact point and a second contact point;

[0008] A swing frame, one end of the swing frame is a rotating end, and the other end is a swing end, the rotating end is rotatably connected to the mounting shaft of the mounting frame, the swing end is an end of the swing frame away from the mounting frame, and the swing frame can swing between the first contact point and the second contact point;

[0009] a first driving assembly, used for driving the swing frame to swing between the first contact point and the second contact point;

[0010] A second driving assembly, wherein the output end of the second driving assembly is arranged at the swing end of the swing frame and is provided with a yarn bobbin, on which the twisted yarn is collected;

[0011] A detection component, comprising a rotating roller and a sensor, wherein the yarn is collected on the yarn tube after passing through the surface of the rotating roller, and the sensor is used to sense whether the rotating roller is rotating;

[0012] a switch assembly, disposed between the swing frame and the first contact point, the switch assembly being used to connect the electrical connection between the second drive assembly and a power source;

[0013] When the sensor senses that the rotating roller stops rotating, the first drive component drives the swing frame to swing from the first contact point to the second contact point, so that the switch component disconnects the electrical connection between the second drive component and the power supply; when the sensor senses that the rotating roller is in a rotating state, the swing frame maintains contact with the first contact point, so that the switch component maintains the electrical connection between the second drive component and the power supply.

[0014] Preferably, the first driving component includes a first driving motor, a swing gear, and a torsion piece. The swing gear is rotatably connected to the mounting shaft, and the swing gear is connected to the swing frame. The first driving motor is used to drive the swing gear to rotate. The torsion piece is sleeved outside the mounting shaft, and one end of the torsion piece is connected to the swing gear, and the other end is connected to the swing frame.

[0015] Preferably, when the swing frame maintains contact with the first contact point, the torsion member is in a pre-tightened state, and the pre-tightening force of the torsion member has a tendency to drive the swing frame to continue to press against the first contact point, so that the switch assembly is tightly connected.

[0016] Preferably, the switch assembly includes a first contact and a second contact, the first contact is arranged at a position where the swing frame contacts the first contact point, the first contact is electrically connected to the second drive assembly, the second contact is arranged on the first contact point, and the second contact is connected to a power supply point;

[0017] When the swing frame contacts the first contact point, the first contact contacts the second contact to electrically connect the second drive component to a power source.

[0018] Preferably, a first stop block is provided on the side of the swing frame facing the swing gear, and a second stop block is provided on the side of the swing gear facing the swing frame, and the horizontal distance between the first stop block and the first contact point is greater than the horizontal distance between the second stop block and the first contact point.

[0019] Preferably, the second drive assembly includes a second drive motor, a driving gear, and a driven gear. The second drive motor is connected to the rocking frame, the driving gear is arranged on the output shaft of the second drive motor, the rocking frame is rotatably connected with the output shaft, the driven gear is fixedly sleeved on the output shaft, the driving gear is meshed with the driven gear, and the output shaft is the output end of the second drive assembly.

[0020] Preferably, the output shaft is a cylindrical structure with openings at both ends, and an inner support assembly is provided in the output shaft, and the inner support assembly includes an outer sleeve and an inner rotating ring, the outer sleeve is coaxially inserted in the output shaft, and the inner rotating ring is coaxially rotatably connected in the outer sleeve, an avoidance ring groove is provided on the outer side wall of the inner rotating ring, and at least two top support inclined surfaces distributed along the circumference of the inner rotating ring are provided in the avoidance ring groove, and at least two pin holes arranged at intervals along the circumference of the outer sleeve are provided on the side wall of the outer sleeve, and an inner support pin is respectively slid in each pin hole, and the inner support pin corresponds to the top support inclined surfaces one by one, and one end of the inner support pin located on the inner side of the outer sleeve is abutted against the top support inclined surface, and the side wall of the output shaft is provided with at least two through holes arranged at intervals along the circumference of the output shaft, and the through holes correspond to the inner support pins one by one.

[0021] Preferably, a twist handle is provided outside the output shaft, the twist handle has an insertion portion, the inner rotating ring is provided with a docking hole, the insertion portion is adapted to the docking hole, and the end of the insertion portion away from the inner rotating ring is located outside the output shaft.

[0022] Preferably, the rotating roller comprises a roller body and a plurality of magnetic blocks arranged at intervals along the circumference of the roller body, and the sensor is a Hall sensor, wherein the detection end of the Hall sensor faces one end of the roller body where the magnetic block is mounted.

[0023] The second purpose of the present invention is to provide a control method for the emergency brake mechanism of a two-for-one twisting machine, which can immediately brake the rotation of the yarn tube when the yarn is suddenly interrupted to prevent the yarn on the yarn tube from flying and improve the safety of the work site.

[0024] To achieve the above object, the present invention provides the following technical solutions:

[0025] A control method for an emergency brake mechanism of a two-for-one twister, the emergency brake mechanism of the two-for-one twister comprising a mounting frame, a swing frame, a first drive assembly, a second drive assembly, a detection assembly, and a switch assembly, the detection assembly comprising a rotating roller and a sensor, the yarn passes through the surface of the rotating roller before being collected on a yarn tube, the sensor is used to sense whether the rotating roller is rotating, and the control method for the emergency brake mechanism of the two-for-one twister comprises:

[0026] using the sensor to determine whether the rotating roller is rotating;

[0027] If the sensor detects that the rotating roller stops rotating, the first driving component drives the swing frame to swing from the first contact point to the second contact point, so that the switch component disconnects the electrical connection between the second driving component and the power source;

[0028] When the sensor detects that the rotating roller is in a rotating state, the swing frame maintains contact with the first contact point so that the switch component maintains the electrical connection between the second drive component and the power supply.

[0029] Compared with the prior art, the above technical solution has the following beneficial technical effects:

[0030] 1. Through the setting of the detection component, when an abnormal state occurs, the rotation of the yarn bobbin can be braked immediately to prevent the yarn on the yarn bobbin from flying, thereby improving the safety of the work site.

[0031] 2. When the swing frame is in contact with the first contact point, the torsion member is in a pre-tightened state, and the pre-tightening force of the torsion member has a tendency to drive the swing frame to continue to be close to the first contact point, so that the switch assembly is tightly connected.

[0032] 3. When it is necessary to install the yarn bobbin on the output shaft, the yarn bobbin is sleeved on the output shaft through the opening at one end thereof, and then the staff rotates the inner rotating ring forward, and the inner support pin gradually contacts the highest point of the top support inclined surface. At this time, the reset spring is in a compressed state. When the inner support pin approaches the highest point of the top support inclined surface, the inner support pin protrudes from the opening of the through hole and presses against the inner side wall of the yarn bobbin. The inner support pin presses against the yarn bobbin to fix the yarn bobbin on the output shaft. When it is necessary to remove the yarn bobbin from the output shaft, the staff rotates the inner rotating ring in the opposite direction, and the inner support pin completely enters the through hole under the elastic force of the reset spring, thereby releasing the inner support pin from pressing against the yarn bobbin, and the staff can then take out the yarn bobbin. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without paying any creative work.

[0034] Figure 1 It is a structural schematic diagram of the emergency brake mechanism of the two-for-one twister.

[0035] Figure 2 It is another structural schematic diagram of the emergency brake mechanism of the two-for-one twister.

[0036] Figure 3 It is a schematic diagram of the structure when the swing end contacts the first contact point.

[0037] Figure 4 It is a schematic diagram of the structure when the swing end contacts the second contact point.

[0038] Figure 5 It is a transmission relationship diagram reflecting the second driving component and the output shaft.

[0039] Figure 6 It is a cross-sectional view showing the internal structure of the output shaft.

[0040] Figure 7 It is a manifestation Figure 6 Enlarged view of part A in the middle.

[0041] Figure 8 It is a structural schematic diagram of the detection component.

[0042] Fig. 9 This is a flowchart showing the control method of the emergency brake mechanism of the twister.

[0043] Description of the accompanying drawings: 1. mounting frame; 101. mounting shaft; 102. first contact point; 103. second contact point; 104. side baffle; 2. swing frame; 201. rotating end; 202. swing end; 203. first stop block; 3. first driving assembly; 301. first driving motor; 302. swing gear; 3021. second stop block; 303. torsion member; 3031. elastic part; 3032. first end; 3033. second end; 304. driving gear; 4. second driving assembly; 401. second driving motor; 402. driving gear; 403. driven gear; 404. output shaft; 4041. left half shaft; 4042. right half shaft; 4043. through hole; 5. detection assembly; 501, rotating roller; 5011, roller body; 50111, inner core shaft; 50112, outer rotating roller; 50113, fixed end; 50114, suspended end; 5012, magnetic block; 502, sensor; 601, first contact; 602, second contact; 7, yarn tube; 8, inner support assembly; 801, outer sleeve; 8011, pin hole; 80111, large inner diameter section; 80112, small inner diameter section; 802, inner rotating ring; 8021, avoidance ring groove; 8022, top support inclined surface; 8023, docking hole; 803, inner support pin; 804, plug; 805, sliding ring; 806, reset compression spring; 807, twist handle; 8071, rotating part; 8072, insertion part; 808, fastening bolt. DETAILED DESCRIPTION

[0044] The invention discloses an emergency brake mechanism of a two-for-one twister, which can brake the rotation of a yarn drum 7 immediately when the yarn is suddenly interrupted, so as to prevent the yarn on the yarn drum 7 from flying and improve the safety of the working site.

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] See also Figure 1 The emergency brake mechanism of the two-for-one twisting machine disclosed in the present invention comprises a mounting frame 1, a swing frame 2, a first driving component 3, a second driving component 4, a detection component 5, and a switch component.

[0047] See also Figure 1 The mounting frame 1 is connected to the frame of the two-for-one twister and is located at the end of the two-for-one twisting process of the yarn, that is, after the yarn is twisted, it is collected at the end of the two-for-one twister using the yarn tube 7. The connection between the mounting frame 1 and the frame of the two-for-one twister can be a fixed connection, such as welding, or a detachable connection, such as bolt connection.

[0048] See also Figure 1 and Figure 2 A mounting shaft 101 is provided on the mounting frame 1, and the mounting shaft 101 is fixedly connected to the mounting frame 1. The mounting frame 1 has a first contact point 102 and a second contact point 103, wherein a line connecting the first contact point 102 and the axis of the mounting shaft 101 on a horizontal plane and a line connecting the second contact point 103 and the axis of the mounting shaft 101 on a horizontal line form a swing angle A, and the swing angle A can be set to any angle according to requirements.

[0049] See also Figure 1-Figure 4 In one embodiment, a side baffle 104 is fixedly connected to the mounting frame 1 , and two side baffles 104 are fixedly connected to the mounting frame 1 , wherein the first contact point 102 is disposed on one of the side baffles 104 , and the second contact point 103 is disposed on the other side baffle 104 .

[0050] See also Figure 1-Figure 4 One end of the swing frame 2 is a rotating end 201, and the other end is a swing end 202, wherein the rotating end 201 is rotatably connected to the mounting shaft 101 through a bearing, and the swing end 202 is the end of the swing frame 2 away from the mounting frame 1. Specifically, the swing end 202 of the swing frame 2 can swing in the area between the two side baffles 104, that is, it can swing between the first contact point 102 and the second contact point 103. The swing frame 2 can swing between the first contact point 102 and the second contact point 103, that is, the swing frame 2 can swing within the fan-shaped range limited by the swing angle A.

[0051] See also Figure 1-Figure 4The first driving assembly 3 is used to drive the swing end 202 of the swing frame 2 to swing around the mounting axis 101 between the first contact point 102 and the second contact point 103 .

[0052] See also Figure 1-Figure 4 In one embodiment, the first driving assembly 3 includes a first driving motor 301, a swing gear 302, and a torsion member 303. The swing gear 302 is rotatably connected to the mounting shaft 101 through a bearing, the torsion member 303 is sleeved outside the mounting shaft 101, the torsion member 303 is disposed between the swing gear 302 and the swing frame 2, one end of the torsion member 303 is connected to the swing gear 302, and the other end is connected to the swing frame 2. The swing gear 302 and the swing frame 2 are connected in transmission through the torsion member 303, and the first driving motor 301 is used to drive the swing gear 302 to rotate.

[0053] See also Figure 1 In one embodiment, the torsion member 303 is a torsion spring, and the torsion member 303 has an elastic portion 3031, a first end 3032 extending out, and a second end 3033 extending out. The elastic portion 3031 is spiral, and the first end 3032 is integrally formed at one end of the elastic portion 3031, and the second end 3033 is integrally formed at the other end of the elastic portion 3031. A first through hole is provided on the swing gear 302, and a second through hole is provided on the portion of the swing frame 2 close to its rotating end 201. The first end 3032 of the torsion member 303 passes through the first through hole, and the second end 3033 of the torsion member 303 passes through the second through hole. The elastic portion 3031 of the torsion member 303 is sleeved on the mounting shaft 101 and is located between the swing gear 302 and the swing frame 2.

[0054] See also Figure 1 The first driving motor 301 is connected to the mounting frame 1, and a driving gear 304 is fixed to the driving end of the first driving motor 301, and the driving gear 304 is meshed with the swing gear 302. When the first driving motor 301 rotates, the first driving motor 301 drives the driving gear 304 to rotate, and the driving gear 304 drives the swing gear 302 to rotate, and the swing gear 302 prompts the torsion member 303 to drive the swing end 202 of the swing frame 2 to swing around the mounting shaft 101 to the first contact point 102.

[0055] See also Figure 1 When the swing frame 2 is in contact with the first contact point 102, the torsion member 303 is in a pre-tightened state, and the pre-tightening force of the torsion member 303 has a tendency to drive the swing frame 2 to continue to be close to the first contact point 102, so that the switch assembly is tightly connected.

[0056] See also Figure 1In one embodiment, in order to keep the torsion piece 303 in a pre-tightened state when the swing end 202 of the swing frame 2 is in contact with the first contact point 102, the torsion piece 303 is in a pre-tightened state when the swing end 202 of the swing frame 2 is in any position between the first contact point 102 and the second contact point 103, including when the swing end 202 of the swing frame 2 is in contact with the second contact point 103, the torsion piece 303 is still in a pre-tightened state.

[0057] It should be noted that in order to make the torsion member 303 in a pre-tightened state at any position between the first contact point 102 and the second contact point 103 when the swing end 202 of the swing frame 2 is in the pre-tightened state, when installing the torsion member 303, the torsion member 303 is tightened in advance in a pre-tightened manner, and then the torsion member 303 is installed. After such operation, it can be ensured that the torsion member 303 is in a pre-tightened state at any position between the first contact point 102 and the second contact point 103 when the swing end 202 of the swing frame 2 is in the pre-tightened state. The pre-tightened state means that the torsion member 303 is in a contracted state, has elastic potential energy, and always has a tendency to return to a natural state.

[0058] See also Figure 1 A first stop block 203 is fixedly connected to the side of the swing frame 2 facing the swing gear 302, and a second stop block 3021 is fixedly connected to the side of the swing gear 302 facing the swing frame 2. The distance between the first stop block 203 and the first contact point 102 in the horizontal direction is greater than the distance between the second stop block 3021 and the first contact point 102 in the horizontal direction.

[0059] See also Figure 1 and Figure 3 When the swing end 202 of the swing frame 2 contacts the first contact point 102, there is a gap between the first stop block 203 and the second stop block 3021, so that the elastic potential energy of the torsion member 303 is applied to the swing frame 2, causing the swing end 202 of the swing frame 2 to press against the first contact point 102.

[0060] See also Figure 1 , Figure 2 and Figure 4 When the swing end 202 of the swing frame 2 is separated from the first contact point 102, the first stop block 203 and the second stop block 3021 abut against each other, and the second stop block 3021 abuts against the first stop block 203 to push the swing end 202 of the swing frame 2 to swing in the direction away from the first contact point 102. At the same time, the second stop block 3021 can limit the movement of the swing frame 2 to prevent the swing end 202 of the swing frame 2 from contacting the first contact point 102 under the elastic force of the torsion member 303.

[0061] See also Figure 2 and Figure 4The switch component is arranged between the swing end 202 of the swing frame 2 and the first contact point 102. The switch component is used to connect the electrical connection between the second drive component 4 and the power supply. The switch component includes a first contact 601 and a second contact 602.

[0062] See also Figure 2 and Figure 4 The first contact 601 is provided at the position where the swing end 202 of the swing frame 2 contacts the first contact point 102, and the first contact 601 is electrically connected to the second drive component 4. The second contact 602 is provided on the first contact point 102, and the second contact 602 is electrically connected to the power supply. When the swing frame 2 contacts the first contact point 102, the first contact 601 contacts the second contact 602, so that the second drive component 4 is electrically connected to the power supply.

[0063] In a normal state, the swing end 202 of the swing frame 2 is tightly fitted with the first contact point 102 through the twisting member 303 in a pre-tightened state, that is, the first contact 601 is tightly fitted with the second contact 602. At this time, the second drive component 4 is in an electrically conductive state, that is, it normally drives the yarn bobbin 7 to take up the yarn. When the yarn on the two-for-one twister is suddenly disconnected, the first drive component 3 drives the swing end 202 of the swing frame 2 to disengage from the first contact point 102, that is, the first contact 601 is disengaged from the second contact 602. At this time, the second drive component 4 is in a power-off state, and the yarn bobbin 7 stops taking up the yarn.

[0064] See also Figure 1 The output end of the second driving component 4 is arranged at the swing end 202 of the swing frame 2, and is installed with a yarn tube 7, which is detachably mounted on the output end of the second driving component 4. The second driving component 4 is used to drive the yarn tube 7 to rotate so that the twisted yarn is collected on the yarn tube 7.

[0065] See also Figure 1 and Figure 5 The second driving assembly 4 includes a second driving motor 401 , a driving gear 402 , and a driven gear 403 .

[0066] See also Figure 1-Figure 5 The first contact 601 is electrically connected to the second drive motor 401, and the second drive motor 401 is connected to the swing frame 2. The swing frame 2 is a hollow shell structure, and the driving end of the second drive motor 401 extends into the swing frame 2. The driving gear 402 is located in the swing frame 2, and the driving gear 402 is fixed to the driving end of the second drive motor 401, and the driving gear 402 can rotate under the drive of the second drive motor 401.

[0067] See also Figure 1 and Figure 5The output shaft 404 is rotatably connected to the swing frame 2. The output shaft 404 is located at the swing end 202 of the swing frame 2, and the output shaft passes through the swing end 202 of the swing frame 2. The output shaft 404 is rotatably connected to the swing frame 2 through a bearing. The driven gear 403 is located in the swing frame 2, and the driven gear 403 is fixedly sleeved on the output shaft 404. The driving gear 402 is meshed with the driven gear 403. The output shaft 404 is the output end of the second driving component 4.

[0068] See also Figure 1 and Figure 5 The yarn tube 7 is sleeved on the output shaft 404. During the wire-reeling process, the second driving motor 401 drives the driving gear 402 to rotate, and the driving gear 402 drives the output shaft 404 to rotate through the driven gear 403, and the output shaft 404 drives the yarn tube 7 to rotate, thereby realizing wire-reeling.

[0069] See also Figure 5 and Figure 6 The output shaft 404 is a cylindrical structure with two ends opened. An inner support assembly 8 is provided inside the output shaft 404. The inner support assembly 8 includes an outer sleeve 801 and an inner rotating ring 802. The outer sleeve 801 is coaxially inserted into the output shaft 404, and the inner rotating ring 802 is coaxially rotatably connected in the outer sleeve 801. The two ends of the outer sleeve 801 and the inner rotating ring 802 are aligned, and the overall structure formed by the outer sleeve 801 and the inner rotating ring 802 is completely located in the output shaft 404.

[0070] See also Figure 5 and Figure 6 In addition, in order to facilitate the installation of the integral body formed by the outer sleeve 801 and the inner rotating ring 802 in the output shaft 404, the output shaft 404 includes a left half shaft 4041 and a right half shaft 4042. The radial cross-sections of the left half shaft 4041 and the right half shaft 4042 are both semicircular arcs. The left half shaft 4041 and the right half shaft 4042 are spliced ​​to form the entire output shaft 404. The left half shaft 4041 and the right half shaft 4042 can be fixed by welding or by bolting. There is no limitation here, as long as the left half shaft 4041 and the right half shaft 4042 can be connected and fastened.

[0071] See also Figure 6 and Figure 7 An escape ring groove 8021 is provided on the outer wall of the inner rotating ring 802, and at least two supporting inclined surfaces 8022 are provided in the avoiding ring groove 8021 and are distributed along the circumference of the inner rotating ring 802. The supporting inclined surfaces 8022 are integrally formed with the avoiding ring groove 8021. The distance between at least a part of the surface of the supporting inclined surface 8022 on the side away from the axis of the inner rotating ring 802 and the axis of the inner rotating ring 802 gradually decreases along the clockwise direction or the counterclockwise direction. In one example, as Figure 3As shown, the distance between at least a portion of the surface of the supporting inclined surface 8022 on the side away from the axis of the inner rotating ring 802 and the axis of the inner rotating ring 802 gradually decreases along the clockwise direction.

[0072] See also Figure 6 and Figure 7 At least two pin holes 8011 are arranged at intervals along the circumference of the outer sleeve 801 on the side wall of the outer sleeve 801, and the pin holes 8011 correspond to the top support inclined surface 8022. An inner support pin 803 slides in each pin hole 8011, and the inner support pin 803 corresponds to the top support inclined surface 8022. One end of the inner support pin 803 located on the inner side of the outer sleeve 801 abuts against the top support inclined surface 8022.

[0073] See also Figure 6 and Figure 7 In one embodiment, the pin hole 8011 includes a large inner diameter section 80111 and a small inner diameter section 80112. The inner diameter of the large inner diameter section 80111 is larger than the inner diameter of the small inner diameter section 80112. The large inner diameter section 80111 is coaxial with and communicates with the small inner diameter section 80112. The pin hole 8011 passes through the side wall of the outer sleeve 801. The opening of the large inner diameter section 80111 away from the small inner diameter section 80112 passes through the outer side wall of the outer sleeve 801. The opening of the small inner diameter section 80112 away from the large inner diameter section 80111 passes through the inner side wall of the outer sleeve 801. A plug 804 is fixed in the opening of the large inner diameter section 80111 away from the small inner diameter section 80112, and the inner support pin 803 passes through the plug 804. A sliding ring 805 is fixed on the inner support pin 803 . The sliding ring 805 slides in the large inner diameter section 80111 . A return compression spring 806 is provided between the plug 804 and the sliding ring 805 . The return compression spring 806 is sleeved on the inner support pin 803 .

[0074] See also Figure 6 and Figure 7 At least two through holes 4043 are arranged at intervals along the circumference of the output shaft 404 on the side wall, the through holes 4043 correspond to the pin holes 8011 one by one, the through holes 4043 are connected to the pin holes 8011, the through holes 4043 correspond to the inner support pins 803 one by one, and the inner support pins 803 pass through the through holes 4043 and the pin holes 8011 at the same time. After such arrangement, when one end of the inner support pin 803 located on the inner side of the outer sleeve 801 abuts against the lowest point of the top support slope 8022, the end of the inner support pin 803 away from the top support slope 8022 is located in the through hole 4043 and does not protrude from the opening of the through hole 4043; when one end of the inner support pin 803 located on the inner side of the outer sleeve 801 abuts against the highest point of the top support slope 8022, the end of the inner support pin 803 away from the top support slope 8022 passes through the through hole 4043 and protrudes from the opening of the through hole 4043.

[0075] See also Figure 6 and Figure 7 The yarn drum 7 is detachably mounted on the output shaft 404. The yarn drum 7 is a cylindrical structure with openings at both ends, or a cylindrical structure with an opening at one end and a closed end. When the yarn drum 7 needs to be mounted on the output shaft 404, the yarn drum 7 is sleeved on the output shaft 404 through the opening at one end thereof, and then the staff rotates the inner rotating ring 802 in the forward direction, and the inner support pin 803 gradually contacts the highest point of the top support inclined surface 8022. At this time, the return compression spring 806 is in a compressed state. When the inner support pin 803 approaches the highest point of the top support inclined surface 8022, the inner support pin 803 protrudes from the orifice of the through hole 4043 and presses against the inner side wall of the yarn drum 7. The inner support pin 803 presses against the yarn drum 7, so that the yarn drum 7 is fixed on the output shaft 404. When it is necessary to remove the yarn tube 7 from the output shaft 404, the staff rotates the inner rotating ring 802 in the opposite direction, and the inner support pin 803 completely enters the through hole 4043 under the elastic force of the return compression spring 806, thereby releasing the inner support pin 803 from pressing the yarn tube 7, and the staff can take out the yarn tube 7.

[0076] It should be noted that the above “positive” refers to Figure 5 or Figure 6 The above “reverse direction” refers to the clockwise direction of Figure 3 counterclockwise direction.

[0077] See also Figure 1 and Figure 6 In order to facilitate the rotation of the inner rotating ring 802, a twisting handle 807 is provided outside the output rotating shaft 404, and the twisting handle 807 includes a rotating portion 8071 and an inserting portion 8072, and the inserting portion 8072 is inserted into the output rotating shaft 404. The inner rotating ring 802 is penetrated with a docking hole 8023 along its axial direction, and the inserting portion 8072 enters the output rotating shaft 404 and is inserted into the docking hole 8023 of the inner rotating ring 802. The cross section of the inserting portion 8072 is a regular polygon, such as a square, a regular pentagon, a regular hexagon, etc., and the docking hole 8023 of the inner rotating ring 802 is a regular polygon hole, such as a square, a regular pentagon, a regular hexagon, etc., and the inserting portion 8072 is adapted to the docking hole 8023. The end of the insertion part 8072 away from the inner rotating ring 802 is located outside the output shaft 404, and the rotating part 8071 is fixedly connected to the end of the insertion part 8072 away from the inner rotating ring 802. The staff rotates the rotating part 8071, and the inner rotating ring 802 can be rotated through the transmission of the insertion part 8072.

[0078] See also Figure 1A threaded hole is opened on the side wall of the output shaft 404, the threaded hole is communicated with the interior of the output shaft 404, and the threaded hole is located at the end of the output shaft 404 close to the rotating part 8071, and a fastening bolt 808 is threadedly connected in the threaded hole. When the inner rotating ring 802 is rotated into place by twisting the handle 807, the staff tightens the fastening bolt 808 so that the fastening bolt 808 presses against the side wall of the insertion part 8072, thereby limiting the circumferential direction of the insertion part 8072, thereby improving the stability of the inner support pin 803 when it presses against the yarn tube 7.

[0079] When the yarn bobbin 7 needs to be installed on the output shaft 404, the staff member sets the yarn bobbin 7 on the output shaft 404 and then rotates the twist handle 807 in the forward direction. When the inner support pin 803 is close to the highest point of the top support inclined surface 8022, the inner support pin 803 protrudes from the opening of the through hole 4043 and presses against the inner side wall of the yarn bobbin 7. The inner support pin 803 presses against the yarn bobbin 7 to fix the yarn bobbin 7 on the output shaft 404. When the yarn bobbin 7 has finished winding up, the staff member rotates the twist handle 807 in the reverse direction. The inner support pin 803 completely enters the through hole 4043 under the elastic force of the reset compression spring 806, thereby releasing the press of the inner support pin 803 against the yarn bobbin 7, and the staff member can take out the yarn bobbin 7.

[0080] See also Figure 1 The detection component 5 is used to detect whether the yarn tube 7 is in a winding state. The detection component 5 includes a rotating roller 501 and a sensor 502. The yarn is collected on the yarn tube 7 after passing through the surface of the rotating roller 501. The sensor 502 is used to sense whether the rotating roller 501 is rotating. By detecting whether the rotating roller 501 is rotating, it is determined whether the yarn tube 7 is in a winding state.

[0081] See also Figure 1 and Figure 8The rotating roller 501 includes a roller body 5011 and a magnetic block 5012. The roller body 5011 includes an inner core shaft 50111 and an outer rotating roller 50112. The inner core shaft 50111 is fixedly connected to the mounting frame 1. The outer rotating roller 50112 is hollow inside, one end of which is open. The outer rotating roller 50112 is sleeved on the inner core shaft 50111 through its opening. The outer rotating roller 50112 is rotatably connected to the inner core shaft 50111 through a bearing. The end of the outer rotating roller 50112 facing the mounting frame 1 is a fixed end 50113, and the end of the outer rotating roller 50112 away from the mounting frame 1 is a suspended end 50114. The sensor 502 is a Hall sensor 502. The magnetic block 5012 is fixed on the end surface of the fixed end 50113 of the outer rotating roller 50112. A plurality of magnetic blocks 5012 are arranged at intervals along the circumference of the roller body 5011. The sensor 502 is a Hall sensor 502 , which is connected to the mounting frame 1 , and the detection end of the Hall sensor 502 faces one end of the roller body 5011 on which the magnetic block 5012 is mounted, that is, the detection end of the Hall sensor 502 faces the fixed end 50113 of the outer rotating roller 50112 .

[0082] When the yarn is wound by the yarn tube 7, the yarn first passes through the outer roller 50112, and the movement of the yarn drives the outer roller 50112 to rotate. When the outer roller 50112 rotates, the fixed end 50113 of the outer roller 50112 also rotates continuously. However, if the yarn is disconnected midway and the yarn no longer passes through the outer roller 50112, the fixed end 50113 of the outer roller 50112 will no longer rotate. In this process, the Hall sensor 502 can judge the rotation of the outer roller 50112 according to the periodic signal changes of the multiple magnetic blocks 5012 arranged at intervals, that is, when there is a periodic signal change, the outer roller 50112 is in a rotating state, otherwise, the outer roller 50112 is in a stationary state. When the outer roller 50112 is in a rotating state, it means that there is no abnormality; when the outer roller 50112 is in a stationary state, it means that an abnormality has occurred. It should be noted that the cooperation between the Hall sensor 502 and the magnetic block 5012 is a prior art, and the specific working principles and processes of the two are not described in detail here.

[0083] When the sensor 502 senses that the outer rotating roller 50112 stops rotating, the first drive component 3 drives the swing frame 2 to swing from the first contact point 102 to the second contact point 103, so that the switch component disconnects the electrical connection between the second drive component 4 and the power supply; when the sensor 502 senses that the outer rotating roller 50112 is in a rotating state, the swing frame 2 maintains contact with the first contact point 102, so that the switch component maintains the electrical connection between the second drive component 4 and the power supply.

[0084] By setting the detection component 5, when an abnormal state occurs, the rotation of the yarn bobbin 7 can be braked immediately to prevent the yarn on the yarn bobbin 7 from flying, thereby improving the safety of the work site.

[0085] It should be noted that the two-for-one twisting machine is usually equipped with a control system. The logical relationship between the Hall sensor 502, the first drive component 3, the second drive component 4, and the detection component 5 are all realized through the control system. The control system is a conventional control system in the prior art, such as PLC, etc., which will not be elaborated here.

[0086] The working principle of the emergency brake mechanism of the two-for-one twisting machine of the present invention is as follows:

[0087] When it is necessary to collect the twisted yarn, the yarn tube 7 is mounted on the output shaft 404 through the opening at one end thereof, and then the staff rotates the inner rotating ring 802 in the forward direction, and the inner support pin 803 gradually contacts the highest point of the top support slope 8022. At this time, the reset spring 806 is in a compressed state. When the inner support pin 803 approaches the highest point of the top support slope 8022, the inner support pin 803 protrudes from the opening of the through hole 4043 and presses against the inner side wall of the yarn tube 7. The inner support pin 803 presses against the yarn tube 7 to fix the yarn tube 7 on the output shaft 404.

[0088] Then, the first drive motor 301 is started to make the swing end 202 contact with the first contact point 102. The first contact 601 and the second contact 602 always maintain a close contact state under the elastic action of the torsion member 303. At this time, the second drive motor 401 maintains an electrically connected state with the power supply. The second drive motor 401 drives the driving gear 402 to rotate. The driving gear 402 drives the output shaft 404 to rotate through the driven gear 403. The output shaft 404 drives the yarn bobbin 7 to rotate, so that the yarn bobbin 7 is used for winding.

[0089] During the process of winding the yarn tube 7, the yarn first passes through the outer rotating roller 50112 and is then wound onto the yarn tube 7. During the process of being wound onto the yarn tube 7, the yarn passes through the outer rotating roller 50112. The movement of the yarn drives the outer rotating roller 50112 to rotate. During the rotation of the outer rotating roller 50112, the fixed end 50113 of the outer rotating roller 50112 also continues to rotate.

[0090] In this process, the Hall sensor 502 detects whether the outer roller 50112 is in a rotating state. When the outer roller 50112 is in a rotating state, it means that there is no abnormality; when the outer roller 50112 is in a stationary state, it means that an abnormality occurs, such as yarn disconnection.

[0091] When an abnormality occurs, the first drive motor 301 starts to work, the first drive motor 301 drives the drive gear 304 to rotate, and the drive gear 304 drives the swing gear 302 to rotate. When the first stop block 203 and the second stop block 3021 are in contact, the swing gear 302 continues to rotate, and the swing gear 302 uses the second stop block 3021 to push the swing end 202 of the swing frame 2 to disengage from the first contact point 102. When the swing end 202 is disengaged from the first contact point 102, the first contact 601 is disengaged from the second contact 602. At this time, the second drive assembly 4 is in a power-off state, and the yarn drum 7 stops taking up the yarn.

[0092] When no abnormality occurs, the second drive motor 401 continues to work until the yarn bobbin 7 completes the yarn winding work. Then the staff needs to remove the yarn bobbin 7 from the output shaft 404. The staff reversely rotates the inner rotating ring 802, and the inner support pin 803 completely enters the through hole 4043 under the elastic force of the return compression spring 806, thereby releasing the inner support pin 803 from the yarn bobbin 7, and the staff can take out the yarn bobbin 7.

[0093] The present invention further discloses a control method for an emergency brake mechanism of a two-for-one twisting machine, which can brake the rotation of the yarn drum 7 immediately when the yarn is suddenly interrupted to prevent the yarn on the yarn drum 7 from flying, thereby improving the safety of the work site.

[0094] See also Figure 1 and Figure 8 The control method of the emergency brake mechanism of the two-for-one twister disclosed in the present invention is applied to the emergency brake mechanism of the two-for-one twister. The emergency brake mechanism of the two-for-one twister includes a mounting frame 1, a swing frame 2, a first drive component 3, a second drive component 4, a detection component 5, and a switch component. The detection component 5 includes a rotating roller 501 and a sensor 502. The yarn passes through the surface of the rotating roller 501 before being collected on the yarn tube 7. The sensor 502 is used to sense whether the rotating roller 501 is rotating. The control method of the emergency brake mechanism of the two-for-one twister includes:

[0095] Step S101: using the sensor 502 to determine whether the rotating roller 501 is rotating.

[0096] When the yarn is wound by the yarn tube 7, the yarn will first pass through the rotating roller 501. The movement of the yarn drives the rotating roller 501 to rotate. When the rotating roller 501 rotates, the fixed end 50113 of the rotating roller 501 also rotates continuously. However, if the yarn is disconnected midway and the yarn no longer passes through the outer rotating roller 50112, the fixed end 50113 of the rotating roller 501 will no longer rotate. When the rotating roller 501 is in a rotating state, it means that there is no abnormality; when the outer rotating roller 50112 is in a stationary state, it means that an abnormality has occurred. The above-mentioned sensor 502 refers to a Hall sensor 502. The fixed end 50113 of the rotating roller 501 is fixed with a plurality of magnetic blocks 5012 arranged at intervals along the circumferential direction. The Hall sensor 502 can judge the rotation of the rotating roller 501 according to the periodic signal changes of the plurality of magnetic blocks 5012 arranged at intervals. That is, when there is a periodic signal change, the rotating roller 501 is in a rotating state; otherwise, the rotating roller 501 is in a stationary state.

[0097] Step S102: If the sensor 502 detects that the rotating roller 501 stops rotating, the first driving component 3 drives the swing frame 2 to swing from the first contact point 102 to the second contact point 103, so that the switch component disconnects the electrical connection between the second driving component 4 and the power supply.

[0098] In the above steps, when the rotating roller 501 is in a stationary state, it means that the yarn is disconnected midway and no longer passes through the rotating roller 501. At this time, it is in an abnormal state. In the abnormal state, it is necessary to disconnect the electrical connection between the second drive component 4 and the power supply to avoid accidents.

[0099] Step S103: When the sensor 502 detects that the rotating roller 501 is in a rotating state, the swing frame 2 maintains contact with the first contact point 102, so that the switch component maintains the electrical connection between the second driving component 4 and the power supply.

[0100] In the above steps, when the rotating roller 501 is in a rotating state, it means that the yarn is continuously passing through the rotating roller 501, and the continuity of the yarn is good. At this time, it is in a normal state. In the normal state, it is necessary to maintain the electrical connection between the second drive component 4 and the power supply to achieve continuous winding of the yarn.

[0101] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the method disclosed in the embodiment, since it corresponds to the device disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the device part description.

[0102] The above is a detailed introduction to the emergency brake mechanism of a twisting machine and its control method provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An emergency brake mechanism for a two-for-one twisting machine, characterized in that: include: A mounting frame (1) is provided with a mounting shaft (101), wherein the mounting frame (1) has a first contact point (102) and a second contact point (103); A sway frame (2), one end of the sway frame (2) being a rotating end (201) and the other end being a swing end (202), the rotating end (201) being rotatably connected to a mounting shaft (101) of a mounting frame (1), the swing end (202) being an end of the sway frame (2) away from the mounting frame (1), and the sway frame (2) being capable of swinging between the first contact point (102) and the second contact point (103); A first driving assembly (3) for driving the swing frame (2) to swing between the first contact point (102) and the second contact point (103); A second driving assembly (4), wherein the output end of the second driving assembly (4) is arranged at the swing end (202) of the swing frame (2) and is provided with a yarn bobbin (7), on which the twisted yarn is collected; A detection component (5) comprising a rotating roller (501) and a sensor (502), wherein the yarn is collected on the yarn tube (7) after passing through the surface of the rotating roller (501), and the sensor (502) is used to sense whether the rotating roller (501) is rotating; a switch assembly, arranged between the swing frame (2) and the first contact point (102), the switch assembly being used to connect the electrical connection between the second drive assembly (4) and a power source; When the sensor (502) senses that the rotating roller (501) stops rotating, the first driving component (3) drives the swing frame (2) to swing from the first contact point (102) to the second contact point (103), so that the switch component disconnects the electrical connection between the second driving component (4) and the power supply; when the sensor (502) senses that the rotating roller (501) is in a rotating state, the swing frame (2) maintains contact with the first contact point (102), so that the switch component maintains the electrical connection between the second driving component (4) and the power supply.

2. The emergency brake mechanism of the two-for-one twisting machine according to claim 1, characterized in that: The first driving assembly (3) comprises a first driving motor (301), a swinging gear (302), and a twisting member (303); the swinging gear (302) is rotatably connected to the mounting shaft (101); the swinging gear (302) is connected to the swing frame (2); the first driving motor (301) is used to drive the swinging gear (302) to rotate; the twisting member (303) is sleeved outside the mounting shaft (101); one end of the twisting member (303) is connected to the swinging gear (302), and the other end is connected to the swing frame (2).

3. The emergency brake mechanism of the two-for-one twisting machine according to claim 2, characterized in that: When the swing frame (2) maintains contact with the first contact point (102), the torsion member (303) is in a pre-tightened state, and the pre-tightening force of the torsion member (303) has a tendency to drive the swing frame (2) to continue to be pressed against the first contact point (102), so that the switch assembly is tightly connected.

4. The emergency brake mechanism of the two-for-one twisting machine according to claim 3, characterized in that: The switch assembly comprises a first contact (601) and a second contact (602), wherein the first contact (601) is arranged at a position where the swing frame (2) contacts the first contact point (102), the first contact (601) is electrically connected to the second drive assembly (4), the second contact (602) is arranged on the first contact point (102), and the second contact (602) is connected to a power supply point; When the swing frame (2) contacts the first contact point (102), the first contact (601) contacts the second contact (602) to electrically connect the second drive component (4) to a power source.

5. The emergency brake mechanism of the two-for-one twisting machine according to claim 3, characterized in that: A first stop block (203) is provided on the side of the swing frame (2) facing the swing gear (302), and a second stop block (3021) is provided on the side of the swing gear (302) facing the swing frame (2), and the distance between the first stop block (203) and the first contact point (102) in the horizontal direction is greater than the distance between the second stop block (3021) and the first contact point (102) in the horizontal direction.

6. The emergency brake mechanism of the two-for-one twisting machine according to claim 1, characterized in that: The second driving assembly (4) comprises a second driving motor (401), a driving gear (402), and a driven gear (403); the second driving motor (401) is connected to the swing frame (2); the driving gear (402) is arranged on an output shaft (404) of the second driving motor (401); the swing frame (2) is rotatably connected with the output shaft (404); the driven gear (403) is fixedly sleeved on the output shaft (404); the driving gear (402) is meshed with the driven gear (403); and the output shaft (404) is the output end of the second driving assembly (4).

7. The emergency brake mechanism of the two-for-one twisting machine according to claim 6, characterized in that: The output rotating shaft (404) is a cylindrical structure with two ends open. An inner support assembly (8) is arranged inside the output rotating shaft (404). The inner support assembly (8) comprises an outer sleeve (801) and an inner rotating ring (802). The outer sleeve (801) is coaxially inserted into the output rotating shaft (404). The inner rotating ring (802) is coaxially rotatably connected inside the outer sleeve (801). An avoidance ring groove (8021) is arranged on the outer side wall of the inner rotating ring (802). At least two top support inclined surfaces (8022) distributed along the circumference of the inner rotating ring (802) are arranged inside the avoidance ring groove (8021). The outer sleeve (80 1) is provided with at least two pin holes (8011) arranged at intervals along the circumference of the outer sleeve (801), and an inner support pin (803) slides in each pin hole (8011), and the inner support pin (803) corresponds one-to-one with the top support inclined surface (8022), and one end of the inner support pin (803) located on the inner side of the outer sleeve (801) abuts against the top support inclined surface (8022), and the side wall of the output shaft (404) is provided with at least two through holes (4043) arranged at intervals along the circumference of the output shaft (404), and the through holes (4043) correspond one-to-one with the inner support pin (803).

8. The emergency brake mechanism of the two-for-one twisting machine according to claim 7, characterized in that: The output shaft (404) is provided with a twist handle (807) outside, the twist handle (807) has an insertion portion (8072), the inner rotating ring (802) is provided with a docking hole (8023), the insertion portion (8072) is adapted to the docking hole (8023), and the end of the insertion portion (8072) away from the inner rotating ring (802) is located outside the output shaft (404).

9. The emergency brake mechanism of the two-for-one twisting machine according to claim 1, characterized in that: The rotating roller (501) comprises a roller body (5011) and a plurality of magnetic blocks (5012) arranged at intervals along the circumference of the roller body (5011); the sensor (502) is a Hall sensor (502); and the detection end of the Hall sensor (502) is disposed toward one end of the roller body (5011) where the magnetic block (5012) is installed.

10. A control method for the emergency brake mechanism of a two-for-one twisting machine according to any one of claims 1 to 9, characterized in that: The emergency brake mechanism of the two-for-one twisting machine comprises a mounting frame (1), a swing frame (2), a first driving assembly (3), a second driving assembly (4), a detection assembly (5), and a switch assembly. The detection assembly (5) comprises a rotating roller (501) and a sensor (502). The yarn passes through the surface of the rotating roller (501) before being collected onto a yarn bobbin (7). The sensor (502) is used to sense whether the rotating roller (501) is rotating. The control method of the emergency brake mechanism of the two-for-one twisting machine comprises: Using the sensor (502) to determine whether the rotating roller (501) is rotating; If the sensor (502) detects that the rotating roller (501) stops rotating, the first driving component (3) drives the swing frame (2) to swing from the first contact point (102) to the second contact point (103), so that the switch component disconnects the electrical connection between the second driving component (4) and the power source; When the sensor (502) detects that the rotating roller (501) is in a rotating state, the swing frame (2) maintains contact with the first contact point (102) so that the switch component maintains the electrical connection between the second drive component (4) and the power supply.

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