Pressure loss alarm device for cradle of roving frame

Abstract

The utility model relates to the technical field of textile production, in particular to a roving frame cradle pressure loss alarm device which comprises a cradle body and a cover plate arranged on the cradle body, and a front roller, a middle roller and a rear roller are sequentially installed in the cradle body through an installation frame. Under the condition that yarn fiber strips on any side of the front roller or the middle roller or the rear roller are broken, under the self-elasticity effect of the spring, the abutting head can abut against the front roller or the middle roller or the rear roller where the yarn fiber strips are broken correspondingly, so that the front roller or the middle roller or the rear roller abuts against the lower roller on the side, and under the effect of the lever, the yarn fiber strips on any side of the front roller or the middle roller or the rear roller are broken. When the yarn is broken, the other side of the front roller or the middle roller or the rear roller is warped, the warped turning action causes pressure loss on the yarn fiber rod, and the rocking shaft triggers the pressure sensor, so that the alarm is triggered to send out an alarm signal, and the purpose of monitoring the pressure loss condition of the pressurizing assembly in time is achieved; and production is interrupted and repaired in time, so that the production progress is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of textile production, in particular to a pressure loss alarm device for a roving frame cradle. Background Art

[0002] The roving frame cradle is used to stably support and control the tension of the yarn. The specific execution components mainly include various rollers to pressurize or relieve the lower roller on the main machine. For example, the Chinese patent with application number CN201720947730.1 discloses a lightweight spinning cradle with pressurization and pressure relief, including a cradle seat and a cradle body hinged to the cradle seat, the cradle body is provided with a handle and a pressurizing assembly, the pressurizing assembly is connected to the upper roller, and also includes a locking and unlocking mechanism, which is driven by rotating the handle. The locking and unlocking mechanism pressurizes or relieves the lower roller fixed on the main machine through the upper roller on the pressurizing assembly. Not only is the locking structure simple, with few parts, reliable locking, and low cost; but the pressure relief unlocking and pressurization locking forces are very small, which greatly reduces the labor intensity of the operator. However, in actual use, the yarn fiber strips often break. If the yarn fiber strips on the other side of the roller are not broken, the roller will continue to apply pressure, which will keep the pressurized locking force unchanged. At this time, the pressure loss of the pressurized component cannot be monitored in time, affecting the production progress. Utility Model Content

[0003] In view of this, the purpose of the utility model is to propose a pressure loss alarm device for the roving frame to solve the technical problem that in the prior art, when the yarn fiber strips are broken, the rollers will continue to pressurize, which will keep the pressurized locking force unchanged, and the pressure loss of the pressurizing component cannot be monitored in time.

[0004] Based on the above purpose, the utility model provides a pressure loss alarm device for a roving frame cradle, comprising a cradle body and a cover plate arranged on the cradle body, wherein a front roller, a middle roller and a rear roller are sequentially installed in the cradle body through a mounting frame, and the pressure loss alarm device also includes:

[0005] Rocking shafts, there are three of the rocking shafts and they are respectively installed at the middle of the front roller, the middle roller and the back roller, and a sliding groove is provided on the rocking shafts;

[0006] A mounting frame, the mounting frame is mounted in the cradle body, the mounting frame is movably connected to the cradle shaft through an embracing member, an alarm is also mounted on both sides of the embracing member, a pressure sensor is electrically connected to the lower end of the alarm, and a through hole is also opened on the mounting frame;

[0007] The pressure bar assembly comprises a top pressure block, a pressure head and a connecting rod, wherein there are two connecting rods, the upper parts of the two connecting rods are fixedly mounted on the top pressure block, the upper end of the top pressure block abuts against the cover plate, the pressure head is slidably mounted on the lower part of the connecting rod, the pressure head is also limitedly slidably arranged on the mounting frame, the lower end of the pressure head cooperates with the sliding groove, a spring is sleeved on the connecting rod, the upper end of the spring abuts against the top pressure block, and the lower end of the spring abuts against the pressure head.

[0008] Furthermore, the middle portion of the rocking shaft is a spherical structure, and the rocking shaft can swing in the through hole.

[0009] Furthermore, avoidance openings are provided on both sides of the cradle body, and the width of the avoidance openings is greater than the diameters of the front roller, the middle roller and the rear roller.

[0010] Furthermore, a handle is installed on the top of the cover plate, and the cover plate can be flipped open on the cradle body.

[0011] Furthermore, the width of the pressing head is smaller than the width of the sliding groove.

[0012] The beneficial effects of the utility model are as follows: a pressure loss alarm device for the roving machine rocker frame of the utility model is adopted. When in use, if a yarn fiber strip on any side of the front roller, the middle roller or the rear roller is broken, under the elastic action of the spring itself, the pressure head will push the corresponding front roller, the middle roller or the rear roller with the broken strip, so that it will lean against the lower roller on that side. Under the action of the lever, the other side of the front roller, the middle roller or the rear roller with the broken strip will tilt up, and the tilting and flipping action will cause pressure loss on the yarn fiber strip, and will cause the rocking shaft to touch the pressure sensor, thereby triggering the alarm to send an alarm signal, thereby achieving the purpose of timely monitoring the pressure loss of the pressurizing component, timely interrupting and repairing the production, and avoiding affecting the production progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the present invention or 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 for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the assembly of the cradle body and the cover plate in the utility model;

[0016] Figure 3 It is a schematic diagram of the assembly of the layering strip assembly and the corresponding rollers in the utility model;

[0017] Figure 4 It is a schematic diagram of the assembly of the rocking shaft and the corresponding rollers in the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the layering strip assembly in the utility model;

[0019] Figure 6 This is a schematic diagram of the internal structure of the layering strip assembly in the utility model;

[0020] The markings in the figure are:

[0021] 1. Rocker body; 2. Cover plate; 3. Front roller; 4. Middle roller; 5. Rear roller; 6. Rocker shaft; 7. Sliding groove; 8. Mounting frame; 9. Clamping piece; 10. Alarm; 11. Pressure sensor; 12. Through hole; 13. Pressing block; 14. Pressing head; 15. Connecting rod; 16. Spring; 17. Escape; 18. Handle. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0023] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] The utility model proposes a roving frame pressure loss alarm device, such as Figures 1 to 6 As shown, it includes a cradle body 1 and a cover plate 2 arranged on the cradle body 1. The front roller 3, the middle roller 4 and the back roller 5 are sequentially installed in the cradle body 1 through a mounting frame 8. The pressure loss alarm device also includes:

[0025] Rocking shafts 6, there are three rocking shafts 6 and they are respectively installed at the middle of the front roller 3, the middle roller 4 and the back roller 5, and a sliding groove 7 is provided on the rocking shafts 6;

[0026] A mounting frame 8 is installed in the cradle body 1. The mounting frame 8 is movably connected to the cradle shaft 6 through an embracing member 9. An alarm 10 is also installed on both sides of the embracing member 9 on the mounting frame 8. The lower end of the alarm 10 is electrically connected to a pressure sensor 11. A through hole 12 is also opened on the mounting frame 8;

[0027] The pressure strip assembly is installed on the mounting frame 8 , the lower end of the pressure strip assembly cooperates with the sliding groove 7 , and the upper end of the pressure strip assembly abuts against the cover plate 2 .

[0028] In this embodiment, the pressure strip assembly includes a top pressure block 13, a pressure head 14 and a connecting rod 15. There are two connecting rods 15. The upper parts of the two connecting rods 15 are fixedly mounted on the top pressure block 13. The upper end of the top pressure block 13 abuts on the cover plate 2. The pressure head 14 is slidably mounted on the lower part of the connecting rod 15. The pressure head 14 is also limitedly slidably set on the mounting frame 8. The lower end of the pressure head 14 cooperates with the sliding groove 7. A spring 16 is sleeved on the connecting rod 15. The upper end of the spring 16 abuts on the top pressure block 13, and the lower end of the spring 16 abuts on the pressure head 14. The width of the pressure head 14 is smaller than the width of the sliding groove 7.

[0029] In this embodiment, when the roving frame cradle is in the open state, the cover plate 2 is engaged with the upper end of the cradle body 1 to press down the top pressure block 13, and the connecting rods 15 on both sides drive the pressing head 14 downward, so that the lower end curved surface of the pressing head 14 is pressed within the range of the sliding groove 7. At this time, the front roller 3, the middle roller 4, and the rear roller 5 simultaneously pressurize the lower roller on the main machine with the yarn fiber strip;

[0030] Since the rocking shaft 6 can swing freely in the engaging member 9, when the yarn fiber strip on any side of the front roller 3, the middle roller 4 or the rear roller 5 is broken, under the elastic action of the spring 16 itself, the pressing head 14 will push the corresponding front roller 3, the middle roller 4 or the rear roller 5 where the yarn fiber strip is broken, so that it rests on the lower roller on that side, and under the action of the lever, the other side of the front roller 3, the middle roller 4 or the rear roller 5 where the yarn fiber strip is broken will tilt up, and the tilting and flipping action will cause pressure loss on the yarn fiber strip, and will cause the rocking shaft 6 to touch the pressure sensor 11, thereby triggering the alarm 10 to send out an alarm signal.

[0031] In this embodiment, if Figure 3 , Figure 5 As shown, the middle part of the rocking shaft 6 is a spherical structure, and the rocking shaft 6 can swing in the through hole 12. The spherical structure allows the rocking shaft 6 to swing over a wide range, so that the pressure loss alarm device can be applicable to various diameter yarn fiber strip specifications.

[0032] In this embodiment, if Figure 1 , Figure 2 As shown, avoidance openings 17 are provided on both sides of the cradle body 1, and the width of the avoidance openings 17 is greater than the diameters of the front roller 3, the middle roller 4 and the rear roller 5, so as to prevent the front roller 3, the middle roller 4 and the rear roller 5 from being damaged by contact with the cradle body 1 during the flipping process when the pressure loss alarm device is used on yarn fiber strips with thicker diameters.

[0033] In addition, preferably, Figure 1 , Figure 2 As shown, a handle 18 is installed on the top of the cover plate 2, and the cover plate 2 can be flipped open on the cradle body 1, which is convenient for structural disassembly and assembly and timely cleaning and maintenance.

[0034] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may 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 detail for the sake of simplicity.

[0035] The 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 the utility model should be included in the scope of protection of the utility model.

Claims

1. A roving frame cradle pressure loss alarm device, comprising a cradle body (1) and a cover plate (2) arranged on the cradle body (1), wherein a front roller (3), a middle roller (4) and a rear roller (5) are sequentially mounted in the cradle body (1) via a mounting frame (8), and characterized in that: The pressure loss alarm device also includes: Rocking shafts (6), there are three rocking shafts (6) which are respectively installed at the middle of the front roller (3), the middle roller (4) and the rear roller (5), and a sliding groove (7) is provided on the rocking shaft (6); a mounting frame (8), the mounting frame (8) being mounted in the cradle body (1), the mounting frame (8) being movably connected to the cradle shaft (6) via an embracing member (9), an alarm (10) being mounted on both sides of the embracing member (9), the lower end of the alarm (10) being electrically connected to a pressure sensor (11), and a through hole (12) being provided on the mounting frame (8); A pressure strip assembly, wherein the pressure strip assembly is mounted on the mounting frame (8), the lower end of the pressure strip assembly cooperates with the sliding groove (7), and the upper end of the pressure strip assembly abuts against the cover plate (2).

2. A roving frame cradle pressure loss alarm device according to claim 1, characterized in that: The pressure strip assembly comprises a top pressure block (13), a pressure head (14) and a connecting rod (15). There are two connecting rods (15). The upper parts of the two connecting rods (15) are fixedly mounted on the top pressure block (13). The upper end of the top pressure block (13) abuts against the cover plate (2). The pressure head (14) is slidably mounted on the lower part of the connecting rod (15). The pressure head (14) is also limitedly slidably arranged on the mounting frame (8). The lower end of the pressure head (14) cooperates with the sliding groove (7). A spring (16) is sleeved on the connecting rod (15). The upper end of the spring (16) abuts against the top pressure block (13), and the lower end of the spring (16) abuts against the pressure head (14).

3. A roving frame cradle pressure loss alarm device according to claim 1, characterized in that: The middle portion of the rocking shaft (6) is a spherical structure, and the rocking shaft (6) can swing in the through hole (12).

4. A roving frame cradle pressure loss alarm device according to claim 1, characterized in that: Avoidance openings (17) are provided on both sides of the cradle body (1), and the width of the avoidance openings (17) is greater than the diameters of the front roller (3), the middle roller (4) and the rear roller (5).

5. The roving frame cradle pressure loss alarm device according to claim 1, characterized in that: A handle (18) is installed on the top of the cover plate (2), and the cover plate (2) can be flipped open on the cradle body (1).

6. A roving frame cradle pressure loss alarm device according to claim 2, characterized in that: The width of the pressing head (14) is smaller than the width of the sliding groove (7).

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