Roving tension adjusting mechanism for roving frame

Abstract

The utility model discloses a roving tension adjusting mechanism for a roving frame, which belongs to the field of roving frame processing equipment and comprises a connecting frame, a fixing rod fixedly connected onto the connecting frame, a fixing wheel rotatably connected onto the fixing rod, a plurality of guide wheels mounted on the connecting frame and an adjusting mechanism mounted on the connecting frame. The adjusting mechanism is arranged between the fixing rod and the guide wheel and comprises a moving rod, and a tension adjusting wheel is rotationally connected to the moving rod. The yarn tension adjusting device has the beneficial effects that an anti-breakage assembly and a detection mechanism are arranged, through the arrangement of a containing block, when the yarn tension of the tension adjusting wheel is increased abnormally, a ball moves into a second ball groove from a first ball groove, and therefore the tension is reduced, yarn breakage is prevented, and when the yarn tension is reduced abnormally, the rotating speed of the tension adjusting wheel is reduced; therefore, the shifting piece switch is turned on through the detection assembly, a worker is reminded to adjust in time, and the yarn is prevented from being disordered or wound.

Description

Technical Field

[0001] The utility model relates to the field of roving machine processing equipment, in particular to a roving tension adjustment mechanism for a roving machine. Background Art

[0002] The roving frame is a spinning machine that turns fiber strips into roving. The main function of the roving frame is to draw and twist the roving, and wind the roving into a certain package to meet the requirements of the spinning frame processing. Before the spinning process, the tension needs to be adjusted, which refers to the degree of tension after it is subjected to external force.

[0003] After searching the prior art, it is found that the longer yarn feeding length makes it difficult to control the yarn tension. Excessive tension can easily cause yarn breakage. Due to the jamming of the front and rear parts and the matching problems, the tension is too small, and the yarn is easily disordered and entangled. When unwinding the wire, the diameter of the wire roll on the unwinding roller gradually decreases, resulting in a lower unwinding rate. At the same time, when the wire output rate in the yarn guide plate remains unchanged, the yarn tension gradually increases, which will cause the yarn to break and affect the progress of the work. Therefore, a roving tension adjustment mechanism for a roving machine is needed to avoid the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a roving tension adjustment mechanism for a roving frame in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A roving tension adjustment mechanism for a roving machine comprises a connecting frame, a fixing rod is fixedly connected to the connecting frame, a fixing wheel is rotatably connected to the fixing rod, a plurality of guide wheels are installed on the connecting frame, an adjusting mechanism is installed on the connecting frame, the adjusting mechanism is arranged between the fixing rod and the guide wheel, the adjusting mechanism comprises a moving rod, a tension adjusting wheel is rotatably connected to the moving rod, a push rod is slidably connected to one end of the moving rod away from the tension adjusting wheel, a threaded rod is threadedly connected to the push rod, the threaded rod is rotatably connected to the connecting frame, an anti-break component is arranged in the push rod, the anti-break component is used to prevent the yarn from breaking when the tension becomes large, and a detection mechanism is arranged on the moving rod, the detection mechanism is used to alarm when the yarn is too loose and the tension becomes small.

[0007] Preferably, the anti-break component includes a telescopic rod, which is fixedly connected to one end of the moving rod, and a first spring is sleeved on the telescopic rod. The end of the telescopic rod away from the moving rod is fixedly connected to a ball. The anti-break component includes a accommodating component, and the accommodating component is used to displace the ball to reduce the yarn tension when the ball is subjected to excessive force.

[0008] Preferably, the accommodating assembly comprises an accommodating block, the accommodating block is fixedly connected in the push rod, and a first ball groove and a second ball groove which are connected to each other are formed on the accommodating block.

[0009] Preferably, the detection mechanism includes a connecting rod, a connecting frame having a slide groove, the connecting rod passing through the slide groove and being slidably connected in the connecting frame, a moving seat fixedly connected to the bottom of the connecting rod, a centrifugal assembly rotatably connected to the moving seat, a paddle switch and an alarm assembly installed on the moving seat, a connecting shaft fixedly connected to the top of the centrifugal assembly, the connecting shaft fixedly connected to the tension adjusting wheel, and the centrifugal assembly is used to turn on the paddle switch to serve as an alarm when the speed of the tension adjusting wheel decreases.

[0010] Preferably, the centrifugal assembly includes a detection disk, which is rotatably connected to the movable seat, and a plurality of detection rods are slidably connected inside the detection disk. A second spring is arranged between the detection disk and the detection rod, and a shift block is fixedly connected to one end of the detection rod away from the second spring, and the shift block is used to shift the paddle switch.

[0011] Preferably, threading blocks are fixedly connected at both ends of the connecting frame.

[0012] The beneficial effects are: an anti-breakage component and a detection mechanism are provided, and through the setting of the accommodating block, when the yarn tension increases abnormally, the ball of the tension-adjusting wheel is displaced from the first ball groove to the second ball groove, thereby reducing the tension and preventing the yarn from breaking; when the yarn tension decreases abnormally, the rotation speed of the tension-adjusting wheel is reduced, thereby turning on the paddle switch through the detection component, reminding the staff to make timely adjustments to prevent the yarn from becoming disordered or entangled.

[0013] The additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0015] Figure 1 This is a first schematic diagram of a roving tension adjustment mechanism for a roving frame according to the utility model;

[0016] Figure 2 It is a top view of a roving tension adjustment mechanism for a roving frame according to the utility model;

[0017] Figure 3 This is a second schematic diagram of a roving tension adjustment mechanism for a roving frame according to the utility model;

[0018] Figure 4 It is a schematic diagram of the connection between the tension adjustment wheel and the detection mechanism of the roving tension adjustment mechanism for the roving frame described in the utility model;

[0019] Figure 5It is a top sectional view of a detection disk of a roving tension adjustment mechanism for a roving frame according to the utility model;

[0020] Figure 6 It is a schematic diagram of an adjustment mechanism of a roving tension adjustment mechanism for a roving frame according to the utility model;

[0021] Figure 7 It is a top sectional view of a push rod of a roving tension adjustment mechanism for a roving frame described in the utility model.

[0022] The accompanying drawings are described as follows: 101, connecting frame; 102, threading block; 103, fixed rod; 104, fixed wheel; 105, guide wheel; 201, moving rod; 202, tension adjustment wheel; 203, push rod; 204, threaded rod; 301, telescopic rod; 302, first spring; 303, sphere; 304, accommodating block; 305, first ball groove; 306, second ball groove; 401, connecting rod; 402, moving seat; 403, detection disk; 404, detection rod; 405, second spring; 406, dial block; 407, dial switch; 408, connecting shaft. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] like Figure 1 — Figure 7As shown, a roving tension adjustment mechanism for a roving machine includes a connecting frame 101, and threading blocks 102 are connected at both ends of the connecting frame 101 by bolts. The threading blocks 102 are used to guide the yarn to pass in and out. A fixing rod 103 is connected to the connecting frame 101 by bolts, and a fixing wheel 104 is rotatably connected to the fixing rod 103. A plurality of guide wheels 105 are installed on the connecting frame 101, and an adjustment mechanism is installed on the connecting frame 101. The adjustment mechanism is arranged between the fixing rod 103 and the guide wheel 105. It includes a moving rod 201, which is rotatably connected to a tension adjusting wheel 202. One end of the moving rod 201 away from the tension adjusting wheel 202 is slidably connected to a push rod 203. A threaded rod 204 is threadedly connected to the push rod 203. The threaded rod 204 is rotatably connected to the connecting frame 101. An anti-break component is arranged in the push rod 203. The anti-break component is used to prevent the yarn from breaking when the tension becomes large. A detection mechanism is arranged on the moving rod 201. The detection mechanism serves as an alarm when the yarn is too loose and the tension becomes small.

[0027] In this example, the anti-break component includes a telescopic rod 301, which is connected to one end of the moving rod 201 by bolts. A first spring 302 is mounted on the telescopic rod 301. The end of the telescopic rod 301 away from the moving rod 201 is connected to a sphere 303 by bolts. The anti-break component includes a accommodating component, which is used to displace the sphere 303 to reduce the yarn tension when the sphere 303 is subjected to excessive force.

[0028] In this example, the accommodating assembly includes a accommodating block 304, which is bonded to the push rod 203. The accommodating block 304 is provided with a first ball groove 305 and a second ball groove 306 which are connected to each other. When the device is operating normally, the ball 303 is in the first ball groove 305. Through the cooperation of the first spring 302 and the ball 303, the tension of the tension adjusting wheel 202 on the yarn is within a suitable range. When the yarn is abnormally tensioned and the pressure of the tension adjusting wheel 202 and the moving rod 201 on the telescopic rod 301 reaches a certain level, the first spring 302 is compressed, and the ball 303 is subjected to pressure and thus moves from the first ball groove 305 to the second ball groove 306. The tension of the tension adjusting wheel 202 on the yarn is reduced to prevent the yarn from breaking. After that, the staff can suspend the operation of the device and pull out the moving rod (201) for a distance to return the ball (303) to the first ball groove (305) and continue working.

[0029] In this example, the detection mechanism includes a connecting rod 401, a sliding groove is opened on the connecting frame 101, the connecting rod 401 passes through the sliding groove and is slidably connected in the connecting frame 101, the bottom of the connecting rod 401 is connected to a moving seat 402 by bolts, the moving seat 402 is rotatably connected to a centrifugal assembly, a paddle switch 407 and an alarm assembly are installed on the moving seat 402, the top of the centrifugal assembly is connected to a connecting shaft 408 by bolts, the connecting shaft 408 is connected to the tension adjustment wheel 202 by bolts, and the centrifugal assembly is used to turn on the paddle switch 407 to serve as an alarm when the rotation speed of the tension adjustment wheel 202 decreases.

[0030] In this example, the centrifugal component includes a detection disk 403, which is rotatably connected to the movable seat 402. A plurality of detection rods 404 are slidably connected inside the detection disk 403. A second spring 405 is arranged between the detection disk 403 and the detection rod 404. The end of the detection rod 404 away from the second spring 405 is connected to a shift block 406 by a bolt. The shift block 406 is used to shift a shift switch 407. When the yarn is too loose, the tension adjustment wheel 202 slows down, thereby slowing down the connecting shaft 408, and the rotation speed of the detection disk 403 is reduced. The detection rod 404 is pulled inward by the second spring 405. After the rotation speed is reduced to a certain extent, the shift block 406 on the detection rod 404 triggers the shift switch 407 to make the alarm component sound, reminding the staff to make timely adjustments.

[0031] Working principle: Before using the device, the yarn is introduced into the threading block 102 at the front end, guided by the fixed wheel 104, passes through the position of the tension adjusting wheel 202, and then guided by the guide wheel 105, and then passes through the threading block 102 at the rear end. The staff rotates the threaded rod 204 to adjust the position of the push rod 203. The push rod 203 pushes the ball 303 through the internal accommodation block 304. The ball 303 pushes the telescopic rod 301. The first spring 302 is compressed, and the telescopic rod 301 pushes the moving rod 201 to make the tension adjusting wheel 202 push the yarn, so that the yarn is tightened and the appropriate tension is applied. The roving frame is turned on for processing. During the processing, the interaction force between the yarn and the tension adjusting wheel 202 is within a suitable dynamic range. The tension adjusting wheel 202 drives the connecting shaft 408 to rotate, and the connecting shaft 408 drives the detection disk 403 to rotate. The detection disk 403 The rotation causes the detection rod 404 to extend out of the detection disk 403 under the action of centrifugal force. Due to the yarn feeding length, it is difficult to ensure the yarn tension, and an abnormal situation may occur. When the tension is abnormally too large, the tension adjusting wheel 202 applies the pressure of the yarn to the telescopic rod 301 and the first spring 302 through the moving rod 201, and pushes the ball 303 from the first ball groove 305 into the second ball groove 306, so that the tension of the tension adjusting wheel 202 on the yarn is reduced to prevent the yarn from breaking. When the tension becomes abnormally small, the pressure on the tension adjusting wheel 202 is reduced, resulting in the rotation speed of the tension adjusting wheel 202 being less than the yarn feeding speed, and the connecting shaft 408 and the detection disk 403 are decelerated. At this time, the detection rod 404 is less affected by the centrifugal force, and the second spring 405 pulls back the detection rod 404 until the dial block 406 dials the dial switch 407 to turn on the alarm component to remind the staff to prevent the yarn from being disordered or entangled.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A roving tension adjustment mechanism for a roving frame, comprising a connecting frame (101), a fixing rod (103) fixedly connected to the connecting frame (101), a fixing wheel (104) rotatably connected to the fixing rod (103), and a plurality of guide wheels (105) mounted on the connecting frame (101), characterized in that: An adjusting mechanism is installed on the connecting frame (101), and the adjusting mechanism is arranged between the fixing rod (103) and the guide wheel (105). The adjusting mechanism comprises a moving rod (201), and a tension adjusting wheel (202) is rotatably connected to the moving rod (201). An end of the moving rod (201) away from the tension adjusting wheel (202) is slidably connected to a push rod (203), and a threaded rod (204) is threadedly connected to the push rod (203), and the threaded rod (204) is rotatably connected to the connecting frame (101). An anti-fracture component is arranged inside the push rod (203), and the anti-fracture component is used to prevent the yarn from breaking when the tension increases. A detection mechanism is arranged on the moving rod (201), and the detection mechanism is used to provide an alarm when the yarn is too loose and the tension decreases.

2. A roving tension adjustment mechanism for a roving frame according to claim 1, characterized in that: The anti-fracture component comprises a telescopic rod (301), wherein the telescopic rod (301) is fixedly connected to one end of the moving rod (201), a first spring (302) is sleeved on the telescopic rod (301), and one end of the telescopic rod (301) away from the moving rod (201) is fixedly connected to a sphere (303), and the anti-fracture component comprises a accommodating component, wherein the accommodating component is used to displace the sphere (303) to reduce the yarn tension when the sphere (303) is subjected to excessive force.

3. A roving tension adjustment mechanism for a roving frame according to claim 2, characterized in that: The accommodating assembly comprises an accommodating block (304), the accommodating block (304) is fixedly connected in the push rod (203), and a first ball groove (305) and a second ball groove (306) which are connected to each other are formed on the accommodating block (304).

4. The roving tension adjustment mechanism for a roving frame according to claim 1, characterized in that: The detection mechanism comprises a connecting rod (401), a sliding groove is provided on the connecting frame (101), the connecting rod (401) passes through the sliding groove and is slidably connected in the connecting frame (101), a movable seat (402) is fixedly connected to the bottom of the connecting rod (401), a centrifugal assembly is rotatably connected to the movable seat (402), a paddle switch (407) and an alarm assembly are installed on the movable seat (402), a connecting shaft (408) is fixedly connected to the top of the centrifugal assembly, the connecting shaft (408) is fixedly connected to the tension adjustment wheel (202), and the centrifugal assembly is used to turn on the paddle switch (407) to provide an alarm when the rotation speed of the tension adjustment wheel (202) decreases.

5. A roving tension adjustment mechanism for a roving frame according to claim 4, characterized in that: The centrifugal assembly comprises a detection disk (403), wherein the detection disk (403) is rotatably connected to the movable seat (402), a plurality of detection rods (404) are slidably connected inside the detection disk (403), a second spring (405) is arranged between the detection disk (403) and the detection rod (404), and a shift block (406) is fixedly connected to one end of the detection rod (404) away from the second spring (405), and the shift block (406) is used to shift the paddle switch (407).

6. The roving tension adjustment mechanism for a roving frame according to claim 1, characterized in that: The two ends of the connecting frame (101) are fixedly connected to the threading blocks (102).

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