Cradle assembly for traction device of spinning machine

Abstract

The utility model discloses a cradle assembly for a traction device of a spinning machine, which relates to the technical field of cradle assemblies of spinning machines and comprises a hollow fixing frame, and a cradle shell is arranged on one side of the hollow fixing frame. The cradle shell is movably connected with the hollow fixing frame through a locking ratchet shaft at the end part; the locking ratchet shaft comprises a fixed shaft rod penetrating through the end of the cradle shell, and the outer side of the fixed shaft rod is fixedly connected with a ratchet sleeve located on the inner side of the cradle shell. A locking pressing rod is arranged above the ratchet wheel sleeve and comprises an L-shaped swing rod, one end of the L-shaped swing rod is provided with a ratchet wheel clamping jaw corresponding to the ratchet wheel sleeve, and the ratchet wheel clamping jaw is matched with the ratchet wheel sleeve in a clamped mode. According to the cradle assembly, the L-shaped swing rod rotates with the positioning shaft rod as the axis, the ratchet wheel clamping jaw at the other end of the L-shaped swing rod is matched with the locking ratchet wheel shaft, it is guaranteed that the L-shaped swing rod exerts certain pressure downwards, and the locking effect of the cradle assembly is improved.

Description

Technical Field

[0001] This utility model specifically relates to the technical field of cradle assembly for spinning machines, and more specifically to a cradle assembly for the traction device of a spinning machine. Background Technology

[0002] The traction device (also known as the drafting device) of a spinning machine is one of the core components in the spinning process. Its main function is to draw the roving or sliver to the required fineness, straighten and parallel the fibers, and control the movement of the fibers to ensure the quality of the yarn.

[0003] The cradle assembly in the traction device applies pressure to the roller through a pressurizing device, so that the roller and the roller fit tightly together to form a roller-roller jaw, thereby holding the fiber bundle. During the spinning process, the back roller feeds in roving or sliver, the front roller rotates at a high speed, and the middle roller and the apron control the movement of the fiber under the action of the cradle, so that the fiber is gradually drawn and thinned in the drafting zone.

[0004] However, in practice, it has been noted that the pressure device at the end of the cradle is in close contact with the roller, and the reaction force will exert an upward force on the end of the cradle. Currently, most cradles are fitted onto the fixed rod of the spinning machine. When subjected to the reaction force for a long time, the cradle may rotate in the opposite direction on the fixed rod, which will affect the pressure of the pressure device. Utility Model Content

[0005] The purpose of this invention is to provide a cradle assembly for a traction device of a spinning machine. Through a ratchet mechanism at the connection point, the cradle assembly can be quickly locked, and the ratchet mechanism also prevents slippage of the cradle assembly when subjected to a reverse force, thereby ensuring the locking effect at the connection point. This solves the technical problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cradle assembly for a traction device of a spinning machine includes a hollow fixed frame, a cradle housing on one side of the hollow fixed frame, and the cradle housing is movably connected to the hollow fixed frame via a locking ratchet shaft at the end.

[0008] The locking ratchet shaft includes a fixed shaft that passes through the end of the rocker arm housing, and a ratchet sleeve located inside the rocker arm housing is fixedly connected to the outside of the fixed shaft.

[0009] A locking lever is provided above the ratchet sleeve, and the locking lever includes an L-shaped swing lever. One end of the L-shaped swing lever is provided with a ratchet pawl corresponding to the ratchet sleeve, and the ratchet pawl engages with the ratchet sleeve.

[0010] As a further technical solution of this utility model, the end of the rocker arm housing is provided with a strip-shaped groove, and the end of the L-shaped swing rod extends through the strip-shaped groove to the inner side of the rocker arm housing.

[0011] The end of the L-shaped swing arm is fitted with a positioning shaft, and both ends of the positioning shaft are movably connected to the cradle housing.

[0012] As a further technical solution of this utility model, the L-shaped swing arm is located above the rocker arm housing, and the end of the L-shaped swing arm near the ratchet pawl extends to the top of the ratchet sleeve.

[0013] As a further technical solution of this utility model, a plastic handle is fixedly connected to the end of the L-shaped swing rod away from the ratchet pawl, and both ends of the fixed shaft at the other end of the L-shaped swing rod are fixedly connected to the hollow fixed frame.

[0014] As a further technical solution of this utility model, the end of the cradle shell away from the hollow fixed frame is fixedly connected to a leaf spring pressure frame in a rectangular array, and each leaf spring pressure frame is fixedly connected to a yarn guide holder at the end away from the cradle shell.

[0015] As a further technical solution of this utility model, the yarn guide holder includes a U-shaped holder, the inner top of the U-shaped holder is integrally provided with a positioning protrusion, and both ends of the positioning protrusion are provided with inclined guide surfaces, and both sides of the positioning protrusion are provided with transverse baffles that are fixedly connected to the U-shaped holder.

[0016] As a further technical solution of this utility model, the inner side of the U-shaped card holder is fitted with a spring locking piece, and one end of the spring locking piece is fitted in the gap between the U-shaped card holder and the transverse baffle. The top of the spring locking piece is provided with a positioning hole, and the positioning protrusion is fitted in conjunction with the positioning hole.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, by holding the plastic handle and pressing down on the end of the L-shaped swing arm, the L-shaped swing arm rotates around the positioning shaft, thereby causing the ratchet pawl at the other end of the L-shaped swing arm to cooperate with the locking ratchet shaft, ensuring that a certain pressure is applied downward to the L-shaped swing arm and improving the locking effect of the rocker assembly;

[0019] 2. In this utility model, the connection between the cradle housing and the hollow fixed frame is fixed by the mutual meshing between the ratchet sleeve and the ratchet pawl. When locking the position of the cradle housing, it is only necessary to rotate the cradle housing downwards. It is not necessary to lift the locking pressure rod first, which facilitates the quick locking of the cradle housing and the cradle.

[0020] 3. In this utility model, the end of the spring locking piece is inserted into the gap between the top of the U-shaped card seat and the transverse baffle until the positioning protrusion at the top of the U-shaped card seat is engaged in the corresponding positioning hole on the spring locking piece, thereby facilitating the quick fixation of the position of the spring locking piece. Through the elasticity of the spring locking piece, it is easy to quickly fix the yarn guide into the U-shaped card seat, and at the same time, it is also easy to remove the yarn guide from the inside of the U-shaped card seat. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0022] Figure 2 This utility model Figure 1 Another perspective view.

[0023] Figure 3 This utility model Figure 1 A partial structural diagram.

[0024] Figure 4 This utility model Figure 3 A schematic diagram of the bottom structure.

[0025] Figure 5 This utility model Figure 3 A schematic diagram of the internal structure.

[0026] Figure 6 This utility model Figure 5 The main view.

[0027] Figure 7 This utility model Figure 6 A magnified view of a portion of the image.

[0028] Figure 8 This is a three-dimensional structural diagram of the yarn guide holder in this utility model.

[0029] Figure 9 This utility model Figure 8 A schematic diagram of the internal structure.

[0030] Figure 10 This utility model Figure 8 A partial structural diagram.

[0031] In the picture:

[0032] Hollow fixing frame-1, rocker arm housing-2, locking pressure bar-3, L-shaped swing bar-31, plastic handle-32, positioning shaft-33, ratchet pawl-34, leaf spring pressure frame-4, yarn guide holder-5, U-shaped holder-51, spring locking plate-52, positioning protrusion-53, transverse baffle-54, positioning hole-55, locking ratchet shaft-6, fixing shaft-61, ratchet sleeve-62, strip groove-7. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1-10 This utility model embodiment provides a cradle assembly for a traction device of a spinning machine, including a hollow fixed frame 1, a cradle housing 2 on one side of the hollow fixed frame 1, and the cradle housing 2 is movably connected to the hollow fixed frame 1 through a locking ratchet shaft 6 at the end;

[0035] Among them, the locking ratchet shaft 6 includes a fixed shaft 61 that passes through the end of the rocker housing 2, and a ratchet sleeve 62 located inside the rocker housing 2 is fixedly connected to the outside of the fixed shaft 61.

[0036] A locking lever 3 is provided above the ratchet sleeve 62. The locking lever 3 includes an L-shaped swing lever 31, and one end of the L-shaped swing lever 31 is provided with a ratchet pawl 34 corresponding to the ratchet sleeve 62. The ratchet pawl 34 engages with the ratchet sleeve 62.

[0037] By adopting the above technical solution, the connection between the rocker arm housing 2 and the hollow fixed frame 1 is fixed by the mutual meshing between the ratchet sleeve 62 and the ratchet pawl 34. When locking the position of the rocker arm housing 2, it is only necessary to rotate the rocker arm housing 2 downwards, without having to lift the locking rod 3 first, which facilitates the quick locking of the rocker arm housing 2 and the rocker arm.

[0038] Furthermore, the end of the rocker arm housing 2 is provided with a strip groove 7, and the end of the L-shaped swing rod 31 extends through the strip groove 7 to the inner side of the rocker arm housing 2.

[0039] The end of the L-shaped swing arm 31 is fitted with a positioning shaft 33, and both ends of the positioning shaft 33 are movably connected to the rocker arm housing 2.

[0040] Furthermore, the L-shaped swing arm 31 is located above the rocker arm housing 2, and one end of the L-shaped swing arm 31 near the ratchet pawl 34 extends above the ratchet sleeve 62.

[0041] More specifically, the end of the L-shaped swing arm 31 away from the ratchet pawl 34 is fixedly connected to a plastic handle 32, and both ends of the fixed shaft 61 at the other end of the L-shaped swing arm 31 are fixedly connected to the hollow fixed frame 1.

[0042] By adopting the above technical solution, the plastic handle 32 is held and pressed down on the end of the L-shaped swing rod 31, causing the L-shaped swing rod 31 to rotate around the positioning shaft 33. This causes the ratchet pawl 34 at the other end of the L-shaped swing rod 31 to cooperate with the locking ratchet shaft 6, ensuring that the L-shaped swing rod 31 is subjected to a certain pressure downward, thereby improving the locking effect of the rocker assembly.

[0043] Furthermore, the end of the cradle housing 2 away from the hollow fixed frame 1 is fixedly connected to a leaf spring pressure frame 4 in a rectangular array, and each leaf spring pressure frame 4 is fixedly connected to a yarn guide holder 5 at the end away from the cradle housing 2.

[0044] Furthermore, the yarn guide holder 5 includes a U-shaped holder 51. The inner top of the U-shaped holder 51 is integrally provided with a positioning protrusion 53, and both ends of the positioning protrusion 53 are provided with inclined guide surfaces. Moreover, both sides of the positioning protrusion 53 are provided with transverse baffles 54 that are fixedly connected to the U-shaped holder 51.

[0045] Furthermore, the inner side of the U-shaped card holder 51 is fitted with a spring locking piece 52, and one end of the spring locking piece 52 is fitted in the gap between the U-shaped card holder 51 and the transverse baffle 54. The top end of the spring locking piece 52 is provided with a positioning hole 55, and the positioning protrusion 53 is fitted in the positioning hole 55.

[0046] By adopting the above technical solution, the end of the spring locking plate 52 is inserted into the gap between the top of the U-shaped card seat 51 and the transverse baffle 54 until the positioning protrusion 53 at the top of the U-shaped card seat 51 is engaged in the corresponding positioning hole 55 on the spring locking plate 52. This facilitates the quick fixation of the position of the spring locking plate 52. The elasticity of the spring locking plate 52 facilitates the quick fixation of the yarn guide into the U-shaped card seat 51. At the same time, it also facilitates the removal of the yarn guide from the inside of the U-shaped card seat 51.

[0047] Furthermore, the spring locking piece 52 is C-shaped, and the bottom of the U-shaped card holder 51 is provided with a U-shaped card groove. One end of the spring locking piece 52 is located below the U-shaped card groove, which blocks the end of the U-shaped card groove, making it easy to quickly insert and remove the yarn guide.

[0048] The working principle of this utility model is as follows: When in use, the hollow fixing frame 1 is first fixed to the designated position of the spinning machine. Then, the end of the rocker arm housing 2 is moved downward. The rocker arm housing 2 moves downward outside the fixed shaft 61. Through the engagement of the ratchet sleeve 62 and the ratchet pawl 34 at the end of the L-shaped swing rod 31, the rocker arm housing 2 can only rotate downward around the fixed shaft 61. When the rocker arm housing 2 rotates upward, the ratchet pawl 34 at the end of the L-shaped swing rod 31 engages with the ratchet sleeve 62, which has a blocking effect and prevents the rocker arm housing 2 from rotating upward. When installing the yarn guide, the yarn guide is inserted into the inner side of the U-shaped card seat 51, and the bottom of the spring locking plate 52 engages with the yarn guide, thereby fixing the yarn guide. Since the positioning protrusion 53 at the top of the U-shaped card seat 51 engages with the positioning hole 55 on the spring locking plate 52, the spring locking plate 52 is quickly fixed. The structure is simple, the operation is very convenient, and it effectively reduces the intensity of manual labor.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cradle assembly for a traction device of a spinning machine, characterized in that: It includes a hollow fixing frame (1), a rocker arm housing (2) is provided on one side of the hollow fixing frame (1), and the rocker arm housing (2) is movably connected to the hollow fixing frame (1) through a locking ratchet shaft (6) at the end; Among them, the locking ratchet shaft (6) includes a fixed shaft (61) that passes through the end of the cradle housing (2), and a ratchet sleeve (62) located inside the cradle housing (2) is fixedly connected to the outside of the fixed shaft (61); A locking lever (3) is provided above the ratchet sleeve (62), and the locking lever (3) includes an L-shaped swing lever (31), and one end of the L-shaped swing lever (31) is provided with a ratchet pawl (34) corresponding to the ratchet sleeve (62), and the ratchet pawl (34) engages with the ratchet sleeve (62).

2. The cradle assembly for the traction device of a spinning machine according to claim 1, characterized in that: The cradle housing (2) has a strip groove (7) at its end, and the end of the L-shaped swing rod (31) extends through the strip groove (7) to the inside of the cradle housing (2). The end of the L-shaped swing arm (31) is fitted with a positioning shaft (33), and both ends of the positioning shaft (33) are movably connected to the cradle housing (2).

3. The cradle assembly for the traction device of a spinning machine according to claim 2, characterized in that: The L-shaped swing arm (31) is located above the rocker housing (2), and the end of the L-shaped swing arm (31) near the ratchet pawl (34) extends above the ratchet sleeve (62).

4. The cradle assembly for the traction device of a spinning machine according to claim 3, characterized in that: The L-shaped swing arm (31) is fixedly connected to a plastic handle (32) at one end away from the ratchet pawl (34), and both ends of the fixed shaft (61) at the other end of the L-shaped swing arm (31) are fixedly connected to the hollow fixed frame (1).

5. The cradle assembly for the traction device of a spinning machine according to claim 4, characterized in that: The end of the cradle shell (2) away from the hollow fixed frame (1) is fixedly connected to the leaf spring pressure frame (4) in a rectangular array, and each leaf spring pressure frame (4) is fixedly connected to the end away from the cradle shell (2) with a yarn guide holder (5).

6. The cradle assembly for the traction device of a spinning machine according to claim 5, characterized in that: The yarn guide holder (5) includes a U-shaped holder (51). The top inner side of the U-shaped holder (51) is integrally provided with a positioning protrusion (53), and both ends of the positioning protrusion (53) are provided with inclined guide surfaces. Furthermore, both sides of the positioning protrusion (53) are provided with transverse baffles (54) that are fixedly connected to the U-shaped holder (51).

7. The cradle assembly for the traction device of a spinning machine according to claim 6, characterized in that: The inner side of the U-shaped card holder (51) is fitted with a spring locking piece (52), and one end of the spring locking piece (52) is fitted in the gap between the U-shaped card holder (51) and the transverse baffle (54). The top of the spring locking piece (52) is provided with a positioning hole (55), and the positioning protrusion (53) is fitted in the positioning hole (55).

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