Forming lifting device of roving frame
By designing a lifting device in the roving frame and using the meshing and locking of the toothed insert and the tooth groove, the yarn tube position is automatically positioned, solving the problem of spline alignment when changing the yarn tube and improving the replacement efficiency and coaxial accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANYOU POLYUR ETHANE YARN CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-12
AI Technical Summary
When replacing the yarn tube, the spline groove at its bottom must be aligned with the spline shaft for accurate insertion, which affects the efficiency of yarn tube replacement.
A roving frame forming lifting device was designed, including a lifting platform, a connecting seat, a connecting column, a toothed insert and a toothed groove. The lifting unit drives the toothed insert to engage and lock with the toothed groove, automatically positioning the circumferential and radial positions of the yarn tube, achieving precise insertion without manual adjustment.
It improves the efficiency of bobbin replacement, ensures the coaxial relationship between the bobbin and the roving frame spindle, simplifies the operation process, and enhances production efficiency.
Smart Images
Figure CN224227317U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roving frame technology, and in particular to a roving frame forming lifting device. Background Technology
[0002] After initial processing, the fibers become relatively long and uniformly thick slivers, which are then twisted into finer rovings by a roving machine. These rovings are then tightly and evenly wound around the outside of the yarn tube to facilitate the storage of the rovings and to ensure smooth feeding when they are subsequently processed into fine yarns.
[0003] Once a certain amount of roving has been wound onto the outside of the bobbin, the lifting platform needs to be lowered to separate the top of the bobbin from the spindle. The bobbin is then removed and replaced with an empty one. To ensure the bobbin is placed in a coaxial position with the spindle, a splined shaft is typically installed on the lifting platform, and a matching splined groove is provided at the bottom of the bobbin. Due to the parallel design of the roving frame, workers replace a large number of bobbins in the same batch. When replacing bobbins, the splined groove at the bottom must be aligned with the splined shaft for accurate insertion, significantly impacting the efficiency of bobbin replacement. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose a forming lifting device for a roving frame to solve the problem that when changing yarn tubes, the spline groove at the bottom must be aligned with the spline shaft for accurate insertion, which has a significant impact on the efficiency of yarn tube replacement.
[0005] To achieve the above objectives, this utility model provides a roving frame forming lifting device, including a base, a lifting platform, and a lifting part for driving the lifting platform to move up and down. The top of the lifting platform is provided with a placement groove that matches the bottom of the yarn tube.
[0006] Connector, fixed to the top of the base.
[0007] The connecting column is rotatably mounted on the top of the connecting seat at its bottom end, and its top end is inserted into and connected to a through hole located at the bottom of the placement groove and extends into the placement groove.
[0008] The teeth are horizontally and circumferentially located on the inner wall of the cavity at the bottom of the yarn tube.
[0009] Two sets of symmetrical fixing parts, each set of fixing parts includes:
[0010] Two parallel connecting arms intersect outside the connecting post.
[0011] The toothed insert is hinged between the free ends of the two connecting arms, and its outer edge is provided with involute teeth that match the tooth groove.
[0012] When the yarn tube is inserted into the placement groove, the lifting unit drives the lifting platform to rise, causing the toothed insert to expand radially and engage with and lock with the toothed groove.
[0013] Preferably, the lifting platform is located at the top of the base, and the lifting part is disposed between the base and the lifting platform.
[0014] Preferably, the perforation and the placement groove are coaxial, and the perforation and the connecting post are coaxial.
[0015] Preferably, the overall shape of the tooth groove is annular, and the radius of the tooth groove is smaller than the length of the connecting arm.
[0016] Preferably, two adjacent connecting arms are arranged side by side and parallel to each other in the vertical direction, and the free ends of the two adjacent connecting arms are respectively hinged to the top and bottom ends of the same vertical plane on the toothed insert.
[0017] Preferably, the diameter of the perforation is less than or equal to the minimum distance between the opposing surfaces of the two toothed inserts.
[0018] Preferably, the forming lifting device further includes an annular groove coaxially disposed at the bottom of the placement groove and a rotating ring disposed within the annular groove.
[0019] Preferably, a support bearing is fixedly sleeved between the outer side of the rotating ring and the inner wall of the ring groove, the outer side of the support bearing is interference-fitted into the ring groove, and the bottom of the rotating ring is interference-fitted into the inner hole of the support bearing.
[0020] The beneficial effects of this utility model are:
[0021] This invention involves inserting a yarn tube into a placement groove, with the central hole at the bottom of the yarn tube fitting over the connecting column and two fixing parts. The lifting mechanism then pushes the lifting platform upwards, causing the two toothed inserts to rise synchronously. Simultaneously, under the upward thrust, the two toothed inserts move laterally away from each other and insert into the toothed grooves on the inner wall of the central hole. Through the interaction of the inclined surfaces between the toothed inserts and the toothed grooves, the circumferential and lateral positions of the yarn tube are automatically and synchronously positioned while the two toothed inserts press against the toothed grooves to fix the yarn tube. No manual intervention is required to align the toothed grooves and the toothed inserts, making the operation simple and efficient. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a three-dimensional illustration of the present invention. Figure 1 ;
[0024] Figure 2This is a three-dimensional illustration of the present invention. Figure 2 ;
[0025] Figure 3 This is a three-dimensional illustration of the present invention. Figure 3 ;
[0026] Figure 4 This is a three-dimensional illustration of the present invention. Figure 4 ;
[0027] Figure 5 for Figure 4 An enlarged schematic diagram of part A in the middle.
[0028] The diagram is marked as follows:
[0029] 1. Lifting platform; 2. Placement slot; 3. Connecting seat; 4. Connecting column; 5. Fixing part; 51. Connecting arm; 52. Toothed insert; 6. Toothed groove; 7. Through hole; 8. Lifting part; 9. Base; 10. Ring groove; 11. Rotary ring. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0031] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0032] like Figures 1 to 5As shown, a roving frame forming lifting device includes a base 9, a lifting platform 1, and a lifting part 8 for driving the lifting platform 1 to move up and down. The lifting part 8 includes two lifting components arranged side by side on the top of the base 9 and a driving component for driving the two lifting components to operate synchronously. The driving component includes a screw fixed to the top of the base 9. The bottom of the lifting platform 1 is provided with a slide groove, and a moving block is slidably provided inside the slide groove. A first support rod is hinged between the bottom of the moving block and the top of the base 9. A nut seat is installed on the external thread of the screw. A second support rod is hinged between the top of the nut seat and the bottom of the lifting platform 1. The midpoint of the first support rod is hinged to the midpoint of the second support rod, and the two cross and enclose each other. The structure forms an X shape, with the fixed hinge points of the first and second support rods corresponding vertically, and the moving block and the nut seat also corresponding vertically. The driving component includes a servo motor, the output end of which is fixedly connected to one end of one of the lead screws. Both lead screws have pulleys at the same end, and a transmission belt is provided between the two pulleys. The two ends of the transmission belt are respectively fitted into the annular grooves outside the two pulleys. The thread direction and thread pitch of the two lead screws are the same, and the two lead screws and the two guide rods are located in the same horizontal plane. The top of the lifting platform 1 is provided with a placement groove 2 that matches the bottom of the yarn tube. The placement groove 2 is coaxial with the spindle of the roving frame.
[0033] Connector 3 is fixed to the top of base 9.
[0034] The bottom end of the connecting column 4 is rotatably located on the top of the connecting seat 3, and its top end is inserted into the through hole 7 located at the bottom of the placement groove 2 and extends into the placement groove 2.
[0035] The toothed groove 6 is horizontally and circumferentially located on the inner wall of the inner cavity at the bottom of the yarn tube.
[0036] Two sets of symmetrical fixing parts 5, each set of fixing parts 5 includes:
[0037] Two parallel connecting arms 51 are intersecting outside the connecting post 4.
[0038] The toothed insert 52 is hinged between the free ends of the two connecting arms 51, and its outer edge is provided with an involute tooth shape that matches the tooth groove 6.
[0039] When the yarn tube is inserted into the placement slot 2, the lifting unit 8 drives the lifting platform 1 to rise, causing the toothed insert 52 to expand radially (referring to the radial direction of the placement slot 2; the radial and radial lines mentioned below refer to the radial and radial directions of the placement slot 2) and engage and lock with the toothed groove 6. In this way, the circumferential and radial positions of the yarn tube do not need to be adjusted when the yarn tube is placed into the placement slot 2, thus improving the efficiency of yarn tube replacement. When the lifting unit 8 drives the lifting platform 1 to descend, the toothed insert 52 descends synchronously under the action of gravity and separates from the toothed groove 6 radially until the two are completely separated, thus improving the overall replacement efficiency of the yarn tube.
[0040] like Figure 1 , Figure 2 and Figure 4 As shown, the lifting platform 1 is located on top of the base 9, and the lifting part 8 is located between the base 9 and the lifting platform 1, so that the base 9 provides a support surface for the lifting part 8, enabling it to stably drive the lifting platform 1 to perform lifting movements.
[0041] like Figure 4 and Figure 5 As shown, the perforation 7 and the placement groove 2 are coaxial, and the perforation 7 and the connecting post 4 are also coaxial. This design ensures that after the yarn tube is placed in the placement groove 2 and fixed by the fixing part 5, the inner cavity of the yarn tube and the spindle of the roving frame are coaxial, so that the bottom end of the spindle can be accurately inserted into the top of the inner cavity of the yarn tube.
[0042] The diameter of the perforation 7 is less than or equal to the minimum distance between the opposing surfaces of the two toothed inserts 52. This design prevents the bottom of the toothed inserts 52 from falling into the interior of the perforation 7, thus preventing the toothed inserts 52 from radially expanding or contracting when the lifting platform 1 is raised or lowered, which would affect the positioning and fixing effect of the yarn tube.
[0043] like Figures 3 to 5 As shown, the overall shape of the toothed groove 6 is circular, and the radius of the toothed groove 6 is smaller than the length of the connecting arm 51. With this design, when the lifting unit 8 drives the lifting platform 1 to rise, the inclined surface of the outer edge of the toothed insert 52 abuts against the inclined surface inside the toothed groove 6, which can automatically calibrate the circumferential position of the yarn tube. Furthermore, through the push of the two synchronously radially expanding toothed inserts 52, the yarn tube can be automatically calibrated in the radial direction. In this way, after the yarn tube is limited and fixed, it can maintain a high degree of coaxiality with the spindle of the roving frame, avoiding the lateral tilt of its axis and affecting the subsequent winding effect of the roving.
[0044] like Figure 4 and Figure 5 As shown, two adjacent connecting arms 51 are arranged side by side and parallel to each other in the vertical direction, and the free ends of the two adjacent connecting arms 51 are respectively hinged to the top and bottom of the same vertical plane on the toothed insert 52. In this way, the toothed insert 52, the two connecting arms 51 and the connecting column 4 can form a parallelogram, so that the toothed insert 52 can maintain a stable radial expansion or contraction movement when the lifting platform 1 is raised and lowered, thereby improving the positioning and fixing effect of the yarn tube.
[0045] like Figure 4 and Figure 5 As shown, the forming lifting device also includes an annular groove 10 coaxially disposed at the bottom of the placement groove 2 and a rotating ring 11 disposed in the annular groove 10. The width of the rotating ring 11 is the same as the radial width between the outer edge of the annular toothed groove 6 and the outer edge of the bottom of the yarn tube.
[0046] A support bearing is fixedly sleeved between the outer side of the swivel 11 and the inner wall of the ring groove 10. The outer side of the support bearing is interference-fitted into the ring groove 10, and the bottom of the swivel 11 is interference-fitted into the inner hole of the support bearing. This can prevent circumferential relative displacement between the yarn tube and the swivel 11 during roving winding and thus prevent wear, and can reduce the rotational resistance of the yarn tube when winding the roving.
[0047] Working principle: After the roving frame stops, the empty yarn tube is placed in the placement slot 2. The output of the servo motor is controlled to rotate clockwise. Through the power transmission of the transmission belt and pulley, the two lead screws are driven to rotate synchronously and in the same direction, causing the two nut seats to move synchronously and in the same direction. This brings the nut seats closer to the hinge point of the first support rod and the base 9, and synchronously pushes the moving block to move linearly in the same direction. This reduces the distance between the two ends of the top and bottom of the X-shape formed by the first and second support rods. This drives the lifting platform 1 to rise and synchronously pushes the toothed insert 52 to rise. The inclined connecting arm 51 converts part of the upward thrust into a radial thrust that pushes the toothed insert 52 closer to the tooth groove 6, causing the two toothed inserts 52 to perform radial expansion. Since the two toothed inserts 52 are on the same radial direction, the position of the yarn tube can be radially aligned. This, combined with the inclined surface of the toothed insert 52 and the... The inclined surfaces within the toothed groove 6 abut against each other, calibrating the circumferential position of the yarn tube. This ensures the coaxial accuracy between the yarn tube and the spindle of the roving frame after the toothed insert 52 is fully engaged and locked with the toothed groove 6. Furthermore, it eliminates the need for manual calibration of the positional relationship between the yarn tube and the fixing part 5 when the yarn tube is placed inside the placement slot 2, improving the efficiency of the overall yarn tube replacement operation. After sufficient roving is wound onto the yarn tube, the roving frame is stopped. Then, the output of the servo motor is controlled to rotate counterclockwise, driving the two lead screws to rotate synchronously in the same direction, thus driving the lifting platform 1 to descend. As the lifting platform 1 descends, the toothed insert 52 descends synchronously with the lifting platform 1 under gravity. The inclined connecting arm 51 converts part of the gravity into a radial thrust that pushes the toothed insert 52 closer to the connecting column 4, causing the two toothed inserts 52 to perform a radial retraction movement and completely disengage from the toothed groove 6, facilitating the removal of the fully loaded yarn tube and the replacement of the empty yarn tube.
[0048] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0049] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A roving frame forming lifting device, comprising a base (9), a lifting platform (1), and a lifting part (8) for driving the lifting platform (1) to move up and down, characterized in that, The top of the lifting platform (1) is provided with a placement groove (2) that matches the bottom of the yarn tube; Connector (3), fixed to the top of base (9); The bottom end of the connecting column (4) is rotatably located on the top of the connecting seat (3), and its top end is inserted into the through hole (7) located at the bottom of the placement groove (2) and extends into the placement groove (2). A toothed groove (6) is provided horizontally on the inner wall of the inner cavity at the bottom of the yarn tube; Two sets of symmetrical fixing parts (5), each set of fixing parts (5) includes: Two parallel connecting arms (51) intersect outside the connecting column (4); The toothed insert (52) is hinged between the free ends of the two connecting arms (51), and its outer edge is provided with an involute tooth shape that matches the tooth groove (6); When the yarn tube is inserted into the placement groove (2), the lifting part (8) drives the lifting platform (1) to rise, so that the toothed insert (52) expands radially and engages with the toothed groove (6) to lock.
2. The roving frame forming lifting device according to claim 1, characterized in that, The lifting platform (1) is located on top of the base (9), and the lifting part (8) is located between the base (9) and the lifting platform (1).
3. The roving frame forming lifting device according to claim 1, characterized in that, The perforation (7) and the placement groove (2) are coaxial, and the perforation (7) and the connecting column (4) are coaxial.
4. The roving frame forming lifting device according to claim 1, characterized in that, The overall shape of the tooth groove (6) is annular, and the radius of the tooth groove (6) is smaller than the length of the connecting arm (51).
5. The roving frame forming lifting device according to claim 1, characterized in that, The two adjacent connecting arms (51) are parallel to each other in the vertical direction, and the free ends of the two adjacent connecting arms (51) are respectively hinged to the top and bottom of the same vertical plane on the toothed insert (52).
6. The roving frame forming lifting device according to claim 1, characterized in that, The diameter of the perforation (7) is less than or equal to the minimum distance between the opposite faces of the two toothed inserts (52).
7. The roving frame forming lifting device according to claim 1, characterized in that, The forming lifting device also includes an annular groove (10) coaxially disposed at the bottom of the placement groove (2) and a rotating ring (11) disposed in the annular groove (10).
8. The roving frame forming lifting device according to claim 7, characterized in that, A support bearing is fixedly sleeved between the outer side of the rotating ring (11) and the inner wall of the ring groove (10). The outer side of the support bearing is interference-fitted into the ring groove (10), and the bottom of the rotating ring (11) is interference-fitted into the inner hole of the support bearing.