Online pressure regulating mechanism for drafting device of spinning frame

Abstract

The utility model relates to an online pressure regulating mechanism for a spinning frame drafting device, the spinning frame drafting device comprises a bracket, a supporting roller group rotatably mounted on the bracket, a cradle whose first end is hinged to the bracket, and a pressure roller group rotatably mounted on the cradle and adapted to the supporting roller group, the online pressure regulating mechanism for the spinning frame drafting device comprises a pressure hook and an adjustment component, the pressure hook has a hook portion, the hook portion is hooked on the second end of the cradle, the first end of the adjustment component is hinged to the pressure hook, and the second end is hinged to the bracket, the length of the adjustment component is adjustable online, so as to adjust the pressure applied by the pressure roller group on the supporting roller group by adjusting its length. The utility model can adjust the pressing force between the pressure roller group and the supporting roller group of the drafting device online, which is convenient and saves trouble.

Description

Technical Field

[0001] The utility model relates to the field of spinning frames, in particular to an online pressure regulating mechanism for a drafting device of a spinning frame. Background Art

[0002] The function of the drafting device of the spinning frame is to draft and twist the coarse yarn into fine yarn. However, during the operation of the existing drafting device, if you want to adjust the pressing force between the pressure roller group and the support roller group of the drafting device, you must stop the machine for adjustment, which brings great inconvenience to the production process and greatly affects the production progress and efficiency. Summary of the invention

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an online pressure regulating mechanism for a drafting device of a spinning frame, which can adjust the pressing force between a pressure roller group and a support roller group of the drafting device online, which is convenient and saves trouble.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: an online pressure regulating mechanism for a spinning frame drafting device, the spinning frame drafting device comprises a bracket, a supporting roller group rotatably mounted on the bracket, a cradle whose first end is hinged to the bracket, and a pressure roller group rotatably mounted on the cradle and adapted to the supporting roller group, the online pressure regulating mechanism for the spinning frame drafting device comprises a pressure hook and an adjusting assembly, the pressure hook has a hook portion, the hook portion is hooked on the second end of the cradle, the first end of the adjusting assembly is hinged to the pressure hook, and the second end is hinged to the bracket, and the length of the adjusting assembly is adjustable online to adjust the pressure applied by the pressure roller group on the supporting roller group by adjusting its length.

[0005] A specific structure of an adjustment component is further provided, which includes a first adjustment component, a second adjustment component and a third adjustment component that are screwed in sequence, the first adjustment component is hinged to the pressure hook, the third adjustment component is hinged to the bracket, and the second adjustment component is used to make the first adjustment component and the third adjustment component move toward or away from each other through its rotation.

[0006] Further, one of the first adjusting member and the third adjusting member is a pressure bolt, and the other is a pressure nut. The second adjusting member is threadedly connected to the pressure bolt via its internal thread and is threadedly connected to the pressure nut via its external thread.

[0007] In order to facilitate the rotation of the second adjusting member by a wrench, at least a portion of the outer peripheral wall of the second adjusting member is a regular hexagonal structure.

[0008] In order to further enable the hook to detach from the cradle without adjusting the adjustment component, the second end of the cradle is provided with an operating part, the operating part is hinged to the cradle via a pin, and the hook is hooked at a position of the operating part that deviates from the pin.

[0009] Further, when the length of the adjusting assembly becomes shorter, the pressure applied by the pressing roller group on the supporting roller group becomes greater.

[0010] In order to enable the stretching device to have adaptive adjustment capabilities within a certain limit, an adaptive pressure regulating assembly is arranged on the bracket, and the adaptive pressure regulating assembly includes a connecting member and an elastic member. The connecting member is hinged on the bracket, and the second end of the adjusting assembly is hinged to the connecting member. The elastic member acts on the connecting member to provide damping for the process of the connecting member, which is hinged to the adjusting assembly, rotating toward the cradle.

[0011] After adopting the above technical solution, the utility model has the following beneficial effects:

[0012] 1. The hook part tightens the cradle. When the length of the adjustment component becomes shorter, the pressing force applied by the pressure roller group on the support roller group becomes larger. When the length of the adjustment component becomes longer, the pressing force applied by the pressure roller group on the support roller group becomes smaller. The utility model can adjust the length of the adjustment component online, and then adjust the pressing force applied by the pressure roller group on the support roller group, eliminating the trouble of stopping the machine for adjustment, which is convenient and trouble-free.

[0013] 2. The pressure hook is hooked on the cradle through its hook part. When there is enough slack between the pressure hook and the adjustment component, the hook part can be directly separated from the cradle to release the constraint on the cradle, thereby facilitating the lifting of the cradle for maintenance and other operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an online pressure regulating mechanism for a spinning frame drafting device of the utility model;

[0015] Figure 2 It is a schematic structural diagram of the pressurizing hook and the adjusting assembly of the utility model. DETAILED DESCRIPTION

[0016] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0017] Figure 1 , 2As shown, an online pressure regulating mechanism for a spinning frame drafting device, the spinning frame drafting device includes a bracket 10, a supporting roller group 20 rotatably mounted on the bracket 10, a cradle 30 whose first end is hinged to the bracket 10, and a pressure roller group 40 rotatably mounted on the cradle 30 and matched with the supporting roller group 20, the online pressure regulating mechanism for the spinning frame drafting device includes a pressure hook 1 and an adjusting assembly, the pressure hook 1 has a hook portion, the hook portion is hooked on the second end of the cradle, the first end of the adjusting assembly is hinged to the pressure hook 1, and the second end is hinged to the bracket 10, the length of the adjusting assembly is adjustable online, so as to adjust the pressure applied by the pressure roller group 40 on the supporting roller group 20 by adjusting the length thereof.

[0018] In this embodiment, the hook part tightens the cradle 30. When the length of the adjustment assembly becomes shorter, the pressing force applied by the pressure roller group 40 on the support roller group 20 becomes larger. When the length of the adjustment assembly becomes longer, the pressing force applied by the pressure roller group 40 on the support roller group 20 becomes smaller. In this embodiment, the length of the adjustment assembly can be adjusted online, and then the pressing force applied by the pressure roller group on the support roller group can be adjusted, eliminating the trouble of stopping the machine for adjustment, which is convenient and trouble-free. In addition, the pressure hook 1 is hooked on the cradle 30 through its hook part. When there is enough slack between the pressure hook 1 and the adjustment assembly, the hook part can directly detach from the cradle 30 to release the constraint on the cradle 30, thereby facilitating the lifting of the cradle 30 for maintenance and other operations.

[0019] Figure 1 , 2 As shown, the adjustment assembly includes a first adjustment member 2, a second adjustment member 3 and a third adjustment member 4 which are screwed in sequence, the first adjustment member 2 is hinged to the pressurizing hook 1, the third adjustment member 4 is hinged to the bracket 10, and the second adjustment member 3 is used to rotate the first adjustment member 2 and the third adjustment member 4 to move toward or away from each other. The structure of the adjustment assembly is not limited to this, and can also be a cylinder, an electric cylinder, etc. In this embodiment, the structure in which the first adjustment member 2, the second adjustment member 3 and the third adjustment member 4 cooperate is preferred. Such a configuration does not require external power and is stable and reliable.

[0020] Figure 1 , 2 As shown, one of the first adjusting member 2 and the third adjusting member 4 is a pressure bolt, and the other is a pressure nut. The second adjusting member 3 is screwed to the pressure bolt through its internal thread, and is screwed to the pressure nut through its external thread. In this way, when the second adjusting member 3 is rotated to make the first adjusting member 2 and the third adjusting member 4 move toward each other, the first adjusting member 2 and the third adjusting member 4 can be effectively prevented from colliding.

[0021] Figure 1 , 2As shown, at least a portion of the outer peripheral wall of the second adjusting member 3 is a regular hexagonal structure. This arrangement makes it easy to rotate the second adjusting member 3 by a wrench, providing convenience for online adjustment.

[0022] Figure 1 , 2 As shown, the second end of the cradle 30 is provided with an operating portion 5, the operating portion 5 is hinged to the cradle 30 via a pin, and the hook portion is hooked at a position of the operating portion 5 that is deviated from the pin. When the cradle 30 needs to be lifted, the operating portion 5 can be directly rotated to loosen the pressure hook 1 and the adjustment assembly, and the hook portion can be easily separated from the cradle 30 without operating the adjustment assembly, which is convenient and trouble-free.

[0023] Figure 1 , 2 As shown, the bracket 10 is provided with an adaptive pressure regulating assembly, which includes a connecting member 6 and an elastic member 7. The connecting member 6 is hinged on the bracket 10, and the second end of the regulating assembly is hinged to the connecting member 6. The elastic member 7 acts on the connecting member 6 to provide damping for the process in which the portion of the connecting member 6 hinged to the regulating assembly rotates toward the cradle 30. During the operation of the drafting device of the spinning frame, the connecting member 6 can adaptively rotate, and then adaptively adjust the pressure applied by the pressure roller group 40 on the support roller group 20 to prevent the drafting device of the spinning frame from getting stuck, slipping, and other abnormalities.

[0024] In this embodiment, the middle part of the connecting member 6 is hinged to the bracket 10, the second end of the adjusting assembly is hinged to the first end of the connecting member 6, and the elastic member 7 is installed on the bracket 10 and pressed against the second end of the connecting member 6. The elastic member 7 can be, but is not limited to, a spring telescopic pin.

[0025] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An online pressure regulating mechanism for a spinning frame drafting device, the spinning frame drafting device comprising a bracket (10), a supporting roller group (20) rotatably mounted on the bracket (10), a cradle (30) whose first end is hinged to the bracket (10), and a pressure roller group (40) rotatably mounted on the cradle (30) and adapted to the supporting roller group (20), characterized in that: The invention comprises a pressurizing hook (1) and an adjusting assembly, wherein the pressurizing hook (1) has a hook portion, wherein the hook portion is hooked on the second end of the cradle, wherein the first end of the adjusting assembly is hinged to the pressurizing hook (1), and the second end is hinged to the bracket (10), and the length of the adjusting assembly is adjustable online so as to adjust the pressure applied by the pressure roller group (40) on the support roller group (20) by adjusting the length of the adjusting assembly.

2. The online pressure regulating mechanism for the drafting device of a spinning frame according to claim 1, characterized in that: The adjustment assembly comprises a first adjustment member (2), a second adjustment member (3) and a third adjustment member (4) which are screwed in sequence, the first adjustment member (2) being hinged to the pressure hook (1), the third adjustment member (4) being hinged to the bracket (10), and the second adjustment member (3) being used to rotate so that the first adjustment member (2) and the third adjustment member (4) move towards or away from each other.

3. The online pressure regulating mechanism for the drafting device of a spinning frame according to claim 2, characterized in that: One of the first adjusting member (2) and the third adjusting member (4) is a pressure bolt, and the other is a pressure nut; the second adjusting member (3) is threadedly connected to the pressure bolt via its internal thread, and is threadedly connected to the pressure nut via its external thread.

4. The online pressure regulating mechanism for the drafting device of a spinning frame according to claim 2, characterized in that: At least a portion of the outer peripheral wall of the second adjusting member (3) is a regular hexagonal structure.

5. The online pressure regulating mechanism for the drafting device of a spinning frame according to claim 1, characterized in that: The second end of the cradle (30) is provided with an operating portion (5), the operating portion (5) is hinged to the cradle (30) via a pin, and the hook portion is hooked on a position of the operating portion (5) that deviates from the pin.

6. The online pressure regulating mechanism for the drafting device of a spinning frame according to claim 1, characterized in that: When the length of the adjustment assembly becomes shorter, the pressure applied by the pressure roller group (40) on the support roller group (20) becomes greater.

7. The online pressure regulating mechanism for the drafting device of a spinning frame according to claim 6, characterized in that: The bracket (10) is provided with an adaptive voltage regulating assembly, the adaptive voltage regulating assembly comprising a connecting member (6) and an elastic member (7), the connecting member (6) being hinged on the bracket (10), the second end of the regulating assembly being hinged to the connecting member (6), the elastic member (7) acting on the connecting member (6) for providing damping for a process in which a portion of the connecting member (6) hinged to the regulating assembly rotates toward the cradle (30).

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