Doffing trolley running assembly

Abstract

The application relates to a walking assembly of a doffing trolley, which comprises a walking plate, walking wheels connected to the two sides of the walking plate, and a driving wheel connected to the walking plate, the walking wheels are used to walk on a guide rail, guide wheels are further arranged on the two sides of the walking plate, the guide wheels abut against the baffle plates on the two sides of the guide rail, at least one side of the guide wheels is supported by a compensation mechanism and can still abut against the baffle plates after wearing, the driving wheel is driven by a motor and is also supported by the compensation mechanism and can still abut against an external support after wearing, and the compensation mechanism realizes the change of the positions of the guide wheels or the driving wheel through self-adjustment. Since the compensation mechanism is arranged for the guide wheels and the driving wheel, the compensation mechanism realizes the change of the positions of the guide wheels or the driving wheel through self-adjustment, in the case that the guide wheels and the driving wheel are worn, compensation is realized through the movement of the positions, so that the doffing trolley is not significantly loosened, and the accurate position of the doffing trolley can be basically maintained, so that the doffing performance is not affected.

Description

Technical Field

[0001] This invention belongs to the field of textile machinery and relates to a doffing carriage walking assembly for moving the doffing carriage. Background Technology

[0002] The doffing carriage is used in textile machinery. When the yarn tube at a certain station is wound with a predetermined length or weight of yarn, the doffing carriage moves to that station, cuts the yarn, moves the yarn tube out of the station, installs the empty yarn tube at the station, feeds the yarn end back onto the empty yarn tube, and keeps winding continuously.

[0003] The doffing trolley travels along a predetermined route, reaching various workstations to operate the yarn tubes at those workstations.

[0004] Chinese patent document CN213570892U discloses a traveling mechanism for a doffing trolley, in which the doffing trolley is moved by a first movable plate. Upper and lower rollers are provided on the upper and lower edges of the first movable plate, respectively. The upper and lower rollers are clamped on a slide rail, and the traveling wheels provide the power for movement. However, since most of the weight of the doffing trolley is supported by the first movable plate, the rollers, as well as the upper and lower rollers, are prone to wear. This wear causes changes in the position of the doffing trolley and the driving force.

[0005] Chinese patent document "CN204780012U" discloses a walking device that uses a trolley drive wheel 4 to walk on a walking track 7. However, if the trolley drive wheel 4 is worn, it will still affect the position of the doffing trolley. Summary of the Invention

[0006] The purpose of this invention is to provide a doffing carriage travel assembly that solves the problem of how to reduce wheel wear causing changes in the position of the doffing carriage and changes in driving force.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The present invention provides a doffing carriage traveling assembly, including a traveling plate, traveling wheels connected to both sides of the traveling plate, and a drive wheel connected to the traveling plate. The traveling wheels travel on a guide rail. Guide wheels are also provided on both sides of the traveling plate. The guide wheels abut against baffles on both sides of the guide rail without contact. At least one of the guide wheels is driven by a compensation mechanism so that the guide wheel can still contact the baffle after wear. The drive wheel is driven by a motor and is also supported by the compensation mechanism so that it can still abut against the external support after positional deviation. The compensation mechanism uses automatic adjustment to compensate for positional changes caused by wear of the guide wheel or the drive wheel.

[0008] Preferably, it further includes a positioning mechanism to locate the position of the doffing carriage, and a braking mechanism, wherein the positioning device and the braking mechanism are signal-connected.

[0009] Preferably, the guide wheel with the compensation mechanism is connected to a connecting plate, which is disposed on the walking plate. The compensation mechanism abuts against the connecting plate so that when the guide wheel wears, the automatic adjustment of the connecting plate completes the compensation of the guide wheel position.

[0010] Furthermore, the compensation mechanism corresponding to the guide wheel includes a fixing block, a screw connected to the fixing block, a nut connected to the screw, and a tension compensation mechanism embedded in the nut. The nut is threadedly engaged with the screw, and the nut has an opening for the end of the tension compensation mechanism to be embedded. The screw is threadedly engaged with the fixing block, and the position of the screw relative to the fixing block is adjustable.

[0011] Furthermore, the end of the connecting plate facing the compensation mechanism is provided with a horizontal bar to increase the contact area with the compensation mechanism, and the horizontal bar is provided with an opening for the tension compensation mechanism to be embedded.

[0012] Preferably, the motor transmits power to the drive wheel, and the drive wheel is mounted on a wheel seat. The wheel seat and the traveling plate are rotatably connected. The compensation mechanism of the drive wheel uses the rotation of the wheel seat to change the position of the drive wheel.

[0013] Preferably, the outer edge of the guide wheel extends outward beyond the traveling wheel, the guide wheel presses against the baffles on both sides of the guide rail, and there is a gap between the baffles and the traveling wheel so as not to interfere with each other.

[0014] Preferably, only the guide wheel on one side of the walking plate is supported by the compensation mechanism, while the guide wheel on the other side is fixedly connected to the walking plate for positioning.

[0015] Preferably, the walking plate is further provided with support wheels, which are used to contact the upper guide rail surface to prevent the walking plate from flipping or jumping.

[0016] Furthermore, the support wheel is disposed at one end of the rotating plate, the rotating plate is rotatably connected to the traveling plate, and a force compensation component is disposed between the end of the rotating plate away from the support wheel and the traveling plate. Openings are provided on the facing surfaces of the rotating plate and the traveling plate, and the two ends of the force compensation component are embedded in the openings and the force compensation component is in a compressed state.

[0017] Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:

[0018] The doffing carriage traveling assembly of the present invention has a compensation mechanism for the guide wheel and the drive wheel. The compensation mechanism realizes the change of position of the guide wheel or the drive wheel through automatic adjustment. When the guide wheel and the drive wheel are worn, the compensation is realized by the position movement, so that the doffing carriage will not be significantly loosened and can basically maintain the accurate position of the doffing carriage, thus not affecting the doffing performance. Attached Figure Description

[0019] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0020] Figure 1 This is a perspective view of a preferred embodiment of the present invention;

[0021] Figure 2 yes Figure 1 Top view;

[0022] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 yes Figure 1 Another viewpoint;

[0024] Figure 5 This is a schematic diagram of a motor transmitting power to the drive pulley via a belt;

[0025] Figure 6 This is a schematic diagram of the interaction between this embodiment and the guide rail;

[0026] Figure 7 yes Figure 6 Enlarged view at point F;

[0027] Figure 8 yes Figure 6 Enlarged view at point G;

[0028] Figure 9 yes Figure 4 Enlarged view at point H;

[0029] The reference numerals in the attached figures are explained as follows:

[0030] 1. Walking plate; 2. Walking wheel; 3. Drive wheel; 4. Guide wheel; 5. Compensation mechanism; 51. Fixing block; 52. Screw; 53. Nut; 54. Spring; 6. Connecting plate; 7. Crossbar; 8. Motor; 9. Wheel seat; 10. Cylinder; 11. Guide rail; 12. Baffle; 13. Rotating shaft; 15. Braking mechanism; 151. Brake pad; 152. Brake cylinder; 16. Top plate; 17. Support wheel; 18. Rotating plate; 19. Fixing seat; 20. Pre-support spring; 21. Drive side plate; 22. Belt. Detailed Implementation

[0031] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] like Figure 1 The doffing carriage traveling assembly shown mainly includes a traveling plate 1, traveling wheels 2, guide wheels 4, and drive wheels 3. The traveling wheels 2, guide wheels 4, and drive wheels 3 are all connected to the traveling plate 1. The drive wheels 3 are driven by a motor 8, thus enabling the movement of the doffing carriage traveling assembly. The doffing carriage traveling assembly is part of the doffing carriage (not shown in the figure), enabling the doffing carriage to move.

[0035] The walking plate 1 is placed horizontally (or may be tilted to a certain extent), and some components are installed on the lower surface of the walking plate 1 for protection.

[0036] Four wheels 2 are provided on both sides of the traveling plate 1, and the four wheels 2 are supported on the guide rail 11 (see...). Figure 6 and Figure 7The traveling wheels 2 provide support and allow the doffing carriage to move more smoothly. Traveling wheels 2 are located on both sides of the traveling plate 1, ensuring even support. The traveling wheels 2 are driven wheels and rotate freely.

[0037] like Figure 1 A drive wheel 3 is also installed on the traveling plate 1, and the drive wheel 3 is driven by a motor 8. The motor 8 transmits power to the drive wheel 3 via a belt. The drive wheel 3 is pressed against... Figure 6 The baffle 12 shown utilizes the drive wheel 3 (see...) Figure 1 The friction between the walking plate 1 and the baffle 12 enables the walking plate 1 to move.

[0038] like Figure 1 and Figure 2 Guide wheels 4 are also provided on both sides of the traveling plate 1. There is no particular limitation on the number of guide wheels 4. In this example, the guide wheels 4 are arranged in a one-to-one correspondence with the traveling wheels 2, with one guide wheel 4 placed near each traveling wheel 2. For example... Figure 6 and Figure 7 A baffle 12 is provided on the outer side of the guide wheel 4, which serves to limit the left and right position of the doffing trolley.

[0039] like Figure 1 and Figure 2 In this example, the guide wheel 4 on one side of the walking plate 1 is provided with a compensation mechanism 5. The compensation mechanism 5 mainly plays two roles: (1) to make the guide wheel 4 press against the baffle 12 so that the doffing trolley does not shake when it is walking; (2) when the guide wheel 4 is worn, it causes the guide wheel 4 to move outward so that the guide wheel 4 is pressed against the baffle 12.

[0040] like Figure 1 and Figure 2 A guide wheel 4 is rotatably mounted on a connecting plate 6, and a rotating shaft 13 is inserted into the connecting plate 6, connecting to the traveling plate 1. The rotating shaft 13 allows the connecting plate 6 and the traveling plate 1 to rotate. The guide wheel 4 is connected to the outer end of the L-shaped connecting plate 6, and its position can be adjusted when the connecting plate 6 rotates. A crossbar 7 is also provided on the connecting plate 6. The crossbar 7 is a long strip plate, and its height is greater than the thickness of the connecting plate 6.

[0041] like Figure 3 As shown ( Figure 2 , Figure 3 All are top views, and Figure 3 yes Figure 2(Enlarged view at point A) The compensation mechanism 5 includes a fixing block 51, a screw 52, ​​a nut 53, and a spring 54. The fixing block 51 is fixed to the traveling plate 1 by bolts. The fixing block 51 has a threaded hole, and the screw 52 is threaded into the threaded hole. One end of the screw 52 is threaded into a nut 53. The outer end of the nut 53 has an opening, which is the hole indicated at point B, and one end of the spring 54 is embedded in this opening. The crossbar 7 also has an opening, which is the hole indicated at point C, and the other end of the spring 54 is embedded in this opening. Since both ends of the spring 54 are embedded in the corresponding holes, the spring 54 is not easy to fall off. The spring 54 is in a compressed state, used to press against the crossbar 7, thereby causing... Figure 2 The connecting plate 6 on the right side rotates clockwise, causing the guide wheel 4 to extend outward. Thus, when the guide wheel 4 wears, the connecting plate 6 rotates clockwise by a small angle, causing the guide wheel 4 to move outward so that it can still be pressed against the guide. Figure 6 The baffle 12 shown achieves the effect of compensating for the wear of the guide wheel 4.

[0042] Spring 54 can also be replaced with other tension compensation mechanisms capable of tension compensation, such as cylinders.

[0043] like Figure 3 The threaded hole in the fixing block 51 is a through hole, and the screw 52 can be adjusted in position within the threaded hole of the fixing block 51. Figure 3 The vertical position of the middle screw 52 can be adjusted, thereby adjusting the distance between the nut 53 and the crossbar 7, and thus adjusting the amount of compression of the spring 54, thereby adjusting the elastic force of the spring 54.

[0044] In this example, the horizontal bar 7 is designed to increase the contact area with the spring 54. For example... Figure 1 The height of the crossbar 7 is greater than the thickness of the connecting plate 6, thus providing a larger contact area with the spring 54 and facilitating the making of holes in the crossbar 7 to accommodate the end of the spring 54. In other embodiments, the crossbar 7 may be omitted, or the holes in the crossbar 7 may not be made to accommodate the spring 54. If the crossbar 7 is omitted, the holes can be made in the connecting plate 6.

[0045] In this example, as Figure 1 and Figure 2Only one guide wheel 4 of the traveling plate 1 is equipped with a compensation mechanism 5, and this guide wheel 4 is mounted on a rotatable connecting plate 6. The guide wheel 4 on the other side of the traveling plate 1 is fixed to the traveling plate 1, meaning that the guide wheel 4 on the other side cannot change position. This guide wheel 4 serves a positioning function, or a reference function, allowing the position of the doffing carriage to be roughly determined in the initial state. Of course, corresponding compensation mechanisms 5 can also be provided for both guide wheels 4 on both sides of the traveling plate 1, so that both guide wheels 4 have a compensation function.

[0046] In this example, as Figure 2 The outer edge of the guide wheel 4 extends outward beyond the traveling wheel 2, so that when the guide wheel 4 is pressed against the baffle 12, there is a gap between the baffle 12 and the traveling wheel 2, and the baffle 12 and the traveling wheel 2 do not interfere with each other.

[0047] In this example, as Figure 4 As shown, the drive wheel 3 in this example also has a compensation function. Specifically, the drive wheel 3 is connected to a wheel seat 9. The wheel seat 9 is rotatably connected to the travel plate 1. A cylinder 10 is also provided on the lower surface of the travel plate 1, which acts as a compensation mechanism for the drive wheel 3. The piston rod of the cylinder 10 presses against the wheel seat 9, causing the wheel seat 9 to rotate, thereby giving the drive wheel 3 a tendency to move outward. Thus, when the drive wheel 3 wears, it will move outward to always press against the outer drive side plate 21 (see...). Figure 8 Here, the position of the drive wheel 3 is changed by moving the piston rod in cylinder 10.

[0048] Figure 5 This is a schematic diagram showing how motor 8 transmits power to drive wheel 3 via belt 22. The drive shaft of motor 8 is connected to wheel D, which rotates wheel E via belt 22. Wheel E, in turn, rotates drive wheel 3 via another belt 22. Drive wheel 3 is rotatably mounted on wheel seat 9, which can rotate around the center of wheel E (wheel seat 9 is not connected to wheel E or its shaft). The piston rod of the aforementioned cylinder 10 acts on wheel seat 9 to cause it to rotate in the JK direction (see...). Figure 4 The rotation of wheel seat 9 causes the drive wheel 3 to move outward or inward (mainly outward), so that the drive wheel 3 presses against the drive side plate 21 (see...). Figure 8 ).

[0049] like Figure 4As shown, a positioning device (not shown) and a braking mechanism 15 are also provided on the lower surface of the traveling plate 1. The positioning device is used to position the doffing carriage. Existing conventional positioning methods can be used, such as QR code positioning, Hall effect sensors, optical positioning, or mechanism opening / closing. The braking mechanism 15 includes a brake cylinder 152 and a brake pad 151 disposed at the top of the piston rod of the brake cylinder 152. The brake pad 151 can be made of a soft material. The piston rod of the brake cylinder 152 moves horizontally, pressing the brake pad 151 against the drive side plate 21 on the side (see...). Figure 8 Simultaneously, the positioning device and the braking mechanism 15 are connected by a signal. When the positioning device detects that the doffing carriage has reached the predetermined position, it transmits a signal to the braking mechanism 15, which then activates to stop the doffing carriage in a timely manner. The positioning device is also connected to the motor 8 by a signal. When the positioning device detects that the doffing carriage has reached the predetermined position, the motor 8 stops.

[0050] like Figure 4 and Figure 9 As shown, the walking plate 1 is also equipped with support wheels 17. Figure 6 and Figure 8 As shown, a top plate 16 is provided above the support wheel 17. The top plate 16 restricts the upward movement of the support wheel 17. When the brake pad 151 abuts against the drive side plate 21 on the side, due to the cooperation between the top plate 16 and the support wheel 17, the traveling plate 1 is not prone to tilting, overturning, or jumping due to force imbalance. Preferably, the support wheel 17 and the brake pad 151 are on the same side.

[0051] like Figure 4 and Figure 9 A support wheel 17 is disposed at one end of a rotating plate 18, which is rotatably connected between two fixed seats 19 on both sides. Each fixed seat 19 contains a bearing for rotating the rotating plate 18. The fixed seats 19 are fixed to the lower surface of the traveling plate 1. A pre-support spring 20 is disposed between the end of the rotating plate 18 furthest from the support wheel 17 and the traveling plate 1. An opening is also provided in this end of the rotating plate 18 and the traveling plate 1 for the pre-support spring 20 to be inserted at both ends. The pre-support spring 20 is in a compressed state. The arrangement of the pre-support spring 20 and the rotating plate 18 allows the support wheel 17 to press against the upper top plate 16 (see...). Figure 8 The pre-support spring 20 can also be other existing stress compensation components.

[0052] like Figure 8 In this example, the top plate 16, baffle 12, guide rail 11, and drive side plate 21 are connected as a whole and can be regarded as a single profile.

[0053] In summary, in this example, because a compensation mechanism 5 is provided corresponding to the guide wheel 4 on one side, when the guide wheel 4 wears, the compensation mechanism 5 causes the guide wheel 4 to change its position outward to counteract the effect of wear, ensuring that the guide wheel 4 always presses against the outer baffle 12, thereby reducing the impact of the change in the position of the doffing carriage caused by the wear of the guide wheel 4. Furthermore, a compensation mechanism (cylinder 10) is also provided corresponding to the drive wheel 3, ensuring that when the drive wheel 3 wears, the compensation mechanism ensures that the drive wheel 3 can still press against the drive side plate 21.

[0054] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A doffing trolley traveling assembly, comprising a traveling plate (1), traveling wheels (2) connected to both sides of the traveling plate (1), and a drive wheel (3) connected to the traveling plate (1), wherein the traveling wheels (2) travel on a guide rail, wherein, The guide rail consists of two U-shaped guide rails with their openings facing each other, and the traveling wheel (2) is supported on the inner side of the base plate of the U-shaped guide rail; Guide wheels (4) are also provided on both sides of the walking plate (1). The guide wheels (4) seamlessly abut against the inner side of the corresponding U-shaped guide rail baffle. At least one of the guide wheels (4) is driven by the compensation mechanism (5) so that the guide wheel (4) can still contact the baffle after wear. The drive wheel (3) is driven by the motor (8) and the drive wheel (3) is also supported by the compensation mechanism so that it can still abut against the external support after position deviation. The compensation mechanism (5) uses the automatic adjustment of the compensation mechanism (5) to compensate for the position change caused by the wear of the guide wheel (4) or the drive wheel (3). The walking plate (1) is also provided with a support wheel (17), which abuts against the inner side of the top plate above the U-shaped guide rail to prevent the walking plate (1) from flipping or jumping. The support wheel (17) is disposed at one end of the rotating plate (18), the rotating plate (18) is rotatably connected to the walking plate (1), and a force compensation component is provided between the end of the rotating plate (18) away from the support wheel (17) and the walking plate (1). Openings are provided on the facing surfaces of the rotating plate (18) and the walking plate (1), and the two ends of the force compensation component are embedded in the openings and the force compensation component is in a compressed state.

2. The doffing carriage traveling assembly according to claim 1, characterized in that, It also includes a positioning device for positioning the doffing trolley, and a braking mechanism (15) connected to the positioning device and the braking mechanism (15).

3. The doffing carriage traveling assembly according to claim 1, characterized in that, The guide wheel (4) connected to the compensation mechanism (5) is connected to a connecting plate (6), which is set on the walking plate (1). The compensation mechanism (5) abuts against the connecting plate (6) so that when the guide wheel (4) is worn, the automatic adjustment of the connecting plate (6) is used to compensate for the position of the guide wheel (4).

4. The doffing carriage traveling assembly according to claim 3, characterized in that, The compensation mechanism (5) corresponding to the guide wheel (4) includes a fixing block (51), a screw (52) connected to the fixing block (51), a nut (53) connected to the screw (52), and a tension compensation mechanism embedded in the nut (53). The nut (53) is threadedly connected to the screw (52), and the nut (53) has an opening for the end of the tension compensation mechanism to be embedded. The screw (52) is threadedly connected to the fixing block (51), and the position of the screw (52) relative to the fixing block (51) is adjustable.

5. The doffing carriage traveling assembly according to claim 4, characterized in that, The connecting plate (6) is also provided with a horizontal bar (7) at one end facing the compensation mechanism to increase the contact area with the compensation mechanism (5). The horizontal bar (7) is provided with an opening for the tension compensation mechanism to be embedded.

6. The doffing carriage traveling assembly according to claim 1, characterized in that, The motor (8) transmits power to the drive wheel (3), and the drive wheel (3) is mounted on the wheel seat (9). The wheel seat (9) and the walking plate (1) are rotatably mounted. The compensation mechanism of the drive wheel (3) uses the rotation of the wheel seat (9) to realize the change of the position of the drive wheel (3).

7. The doffing carriage traveling assembly according to claim 1, characterized in that, The outer edge of the guide wheel (4) extends outward beyond the traveling wheel (2), the guide wheel (4) presses against the baffles (12) on both sides of the guide rail (11), and there is a gap between the baffles (12) and the traveling wheel (2) without interfering with each other.

8. The doffing carriage traveling assembly according to claim 1, characterized in that, Only the guide wheel (4) on one side of the walking plate (1) is supported by the compensation mechanism (5), while the guide wheel (4) on the other side is fixedly connected to the walking plate (1) to play a positioning role.

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