Warp knitting machine tensioning mechanism

Abstract

The utility model relates to the technical field of warp knitting machines, in particular to a tensioning mechanism of a warp knitting machine, which comprises a bottom plate, a yarn tensioning mechanism, a yarn breakage detection mechanism, two thread end clamping mechanisms and a control host, and the yarn tensioning mechanism, the yarn breakage detection mechanism, the two thread end clamping mechanisms and the control host are fixedly connected onto the bottom plate. The yarn tensioning mechanism, the yarn breakage detection mechanism and the two thread end clamping mechanisms are all electrically connected with the control host, and the two thread end clamping mechanisms are located on the two sides of the yarn tensioning mechanism respectively; the yarn tensioning mechanism comprises an electric push rod fixedly connected to the upper side of the bottom plate, a piston rod of the electric push rod is provided with a first support, the first support is connected with a first rotating wheel, and the pressure sensor is electrically connected with the control host. According to the utility model, the two ends of the broken part of the yarn body can be automatically clamped and positioned when the yarn body is broken at the yarn tensioning mechanism, so that the phenomenon that the ends of the yarn body are wound on other yarn bodies or other positions of the warp knitting machine is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to warp knitting machine technical field especially is a kind of warp knitting machine tension mechanism. BACKGROUND

[0002] In the running process of warp knitting machine, yarn breakage is a relatively common problem that can significantly affect production. Traditional warp knitting machine tension mechanism often focuses only on the adjustment of yarn tension to ensure that the yarn can maintain an appropriate degree of tension during the knitting process, thereby ensuring the quality of the fabric and the smooth progress of knitting. However, when yarn breaks at the tension mechanism, the existing equipment lacks effective measures to deal with it.

[0003] In actual production scenarios, warp knitting machines usually run at high speed continuously. Once the yarn breaks, if the ends of the broken yarn cannot be processed in time, the broken yarn will become disordered under the operation of the machine, which may entangle with other yarns or entangle on various parts of the warp knitting machine. This not only makes it extremely difficult and time-consuming to find the broken ends and rewire, seriously affecting production efficiency, but also may cause damage to the machine to some extent, increasing the maintenance cost and downtime of the equipment. SUMMARY

[0004] The utility model aims at providing a warp knitting machine tension mechanism that can automatically clamp and position the two ends of the yarn body at the yarn tension mechanism when the yarn body breaks, reducing the phenomenon of yarn body ends entangling with other yarn bodies or other parts of the warp knitting machine.

[0005] The technical solutions adopted by the utility model are as follows:

[0006] A warp knitting machine tension mechanism includes a base plate, a yarn tension mechanism, a yarn breakage detection mechanism, two thread end clamping mechanisms and a control host fixedly connected to the base plate. The yarn tension mechanism, the yarn breakage detection mechanism and the two thread end clamping mechanisms are electrically connected to the control host, and the two thread end clamping mechanisms are located on both sides of the yarn tension mechanism.

[0007] The yarn tension mechanism includes an electric push rod fixedly connected to the upper side of the base plate. The piston rod of the electric push rod is provided with a first bracket, and the first bracket is connected with a first rotating wheel.

[0008] To solve the problem of poor detection sensitivity, the yarn breakage detection mechanism further includes a pressure sensor installed between the piston rod of the electric push rod and the first bracket, and the pressure sensor is electrically connected to the control host.

[0009] In order to solve the problem of unstable movement of the piston rod, further comprising an electric push rod, the piston rod is fixedly connected with an outer sleeve, the inner sleeve is slidably connected with a connecting rod, one end of the connecting rod is fixedly connected with the first support, and the pressure sensor is fixedly connected to the inner sleeve away from the first support.

[0010] Further, the thread clamping mechanism comprises a frame fixedly connected to the bottom plate, a extrusion positioning unit is slidably connected inside the frame, the frame is provided with an electric drive mechanism, and the electric drive mechanism is electrically connected with the control host.

[0011] Further, the extrusion positioning unit comprises a second support slidably connected inside the frame, and a second rotating wheel is rotatably connected inside the second support.

[0012] Further, the electric drive mechanism comprises an electromagnet and a magnet, the electromagnet is fixedly connected inside the frame, the magnet is fixedly connected to the second support, the electromagnet is electrically connected with the control host, and the electromagnet and the magnet are magnetically repulsive when the electromagnet is electrified.

[0013] In order to solve the problem of unstable installation of the frame, further, the frame is further fixedly connected with an anti-skid block, the material of the anti-skid block is rubber, and an arc surface is formed on the side opposite to the second rotating wheel.

[0014] The technical effects achieved by the utility model are as follows:

[0015] The warp knitting machine tensioning mechanism of the utility model is provided with a yarn breakage detection mechanism and two thread clamping mechanisms, which can automatically clamp and position the two ends of the yarn body at the breakage position when the yarn body is broken at the yarn tensioning mechanism, thereby reducing the phenomenon that the yarn body end is wound on the remaining yarn body or other positions of the warp knitting machine. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described below in combination with the drawings and examples.

[0017] Figure 1 It is a structural schematic view of the tensioning mechanism of the utility model;

[0018] Figure 2 It is a sectional structure schematic view of the yarn breakage detection mechanism of the utility model;

[0019] Figure 3 It is a sectional structure schematic view of the thread clamping mechanism of the utility model;

[0020] Figure 4 It is a principle diagram of the tensioning mechanism of the utility model;

[0021] 1. bottom plate; 2. electric push rod; 3. outer sleeve; 4. connecting rod; 5. pressure sensor; 6. first support; 7. first rotating wheel; 8. frame; 9. second support; 10. electromagnet; 11. magnet; 12. second rotating wheel; 13. anti-skid block; 14. arc surface; 15. yarn body. DETAILED DESCRIPTION

[0022] The technical scheme of the present application will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all of the embodiments.

[0023] As shown in Figures 1-4 , a warp knitting machine tensioning mechanism, comprising a bottom plate 1 and a yarn tensioning mechanism, a yarn breakage detection mechanism, two thread clamping mechanisms and a control host fixedly connected to the bottom plate 1, the yarn tensioning mechanism, the yarn breakage detection mechanism, the two thread clamping mechanisms are electrically connected with the control host;

[0024] Among them, the yarn tensioning mechanism is used for tensioning the yarn body 15;

[0025] Specifically as shown in Figures 1-2 and Figure 4 , the yarn tensioning mechanism comprises an electric push rod 2 fixedly connected to the upper side of the bottom plate 1, a first support 6 is installed on the piston rod of the electric push rod 2, the first support 6 is a U-shaped frame, a first rotating wheel 7 is connected to the first support 6, the yarn body 15 passes through the first rotating wheel 7 from the side of the first rotating wheel 7 away from the electric push rod 2, when the electric push rod 2 is started to drive the first rotating wheel 7 to move in the Y direction, the first rotating wheel 7 is pushed to the yarn body 15, that is, the tensioning range of the adjustable yarn body 15 is adjusted, and the tensioning range of the yarn body 15 is adjusted when the yarn body 15 moves in the X direction.

[0026] Among them, the yarn breakage detection mechanism is used for detecting whether the yarn body 15 is broken at the yarn tensioning mechanism;

[0027] Specifically, the yarn breakage detection mechanism can be an image detection device, or as shown in Figures 1-2 , that is, the yarn breakage detection mechanism comprises a pressure sensor 5 installed between the piston rod of the electric push rod 2 and the first support 6, the pressure sensor 5 and the control host are electrically connected, the force detected by the pressure sensor 5 when the first rotating wheel 7 is tensioned to the yarn body 15 is set to N1~N2, N2 is greater than N1, when the detected force of the pressure sensor 5 is less than N1, it is determined that the yarn body 15 is broken, and the pressure applied to the first rotating wheel 7 is no longer applied.

[0028] And, the electric push rod 2 piston rod is fixedly connected with an outer sleeve 3, the inner sleeve 3 is slidably connected with a connecting rod 4, one end of the connecting rod 4 is fixedly connected with the first support 6, the pressure sensor 5 is fixedly connected with the inner sleeve 3 away from the first support 6, at this time, the downward gravity of the first support 6 and the first runner 7 is borne by the outer sleeve 3 and the connecting rod 4, so that the measurement error of the pressure sensor 5 can be reduced.

[0029] Wherein, two thread clamping mechanisms are respectively located on both sides of the yarn tensioning mechanism, when the yarn breakage detection mechanism detects that the yarn body 15 is broken, the control host automatically starts the thread clamping mechanism to clamp the thread at the broken place of the yarn body 15, and the thread at the broken place of the yarn body 15 is the end part at the broken place of the yarn body 15.

[0030] As shown in Figure 1 And Figure 3 The thread clamping mechanism includes a frame 8 fixedly connected to the bottom plate 1, an extrusion positioning unit slidably connected inside the frame 8, and an electric drive mechanism assembled on the frame 8, the electric drive mechanism and the control host are electrically connected, the extrusion positioning unit is driven by the electric drive mechanism, so that the extrusion positioning unit and the inner wall of the frame 8 can clamp and fix the yarn body 15, and the frame is a rectangular frame.

[0031] Wherein, the extrusion positioning unit includes a second support 9 slidably connected inside the frame 8, the second support 9 is a U-shaped frame, and a second runner 12 is rotatably connected inside the second support 9, so that the abrasion of the yarn body 15 can be reduced by the rotation of the second runner 12 when the yarn body 15 moves normally.

[0032] The electric drive mechanism includes an electromagnet 10 and a magnet 11, the electromagnet 10 is fixedly connected inside the frame 8, the magnet 11 is fixedly connected to the second support 9, the electromagnet 10 and the control host are electrically connected, and the electromagnet 10 and the magnet 11 are magnetically repulsive when the electromagnet 10 is energized, so as to more simply push the second support 9 to move. Meanwhile, the frame 8 is also fixedly connected with an anti-skid block 13, the material of the anti-skid block 13 is preferably rubber, and an arc surface 14 is formed on the side opposite to the second runner 12 of the anti-skid block 13, when the yarn body 15 is clamped between the second runner 12 and the anti-skid block 13, the arc surface 14 is arranged to make the second runner 12 and the anti-skid block 13 have a larger clamping area, thereby improving the clamping effect.

[0033] The above description is only illustrative but not restrictive, and those skilled in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope of the appended claims, but all will fall within the protection scope of the utility model.

Claims

1. A warp knitting machine tensioning mechanism, characterised in that: Including the bottom plate (1) and fixedly connected on the bottom plate (1) yarn tensioning mechanism, yarn breakage detection mechanism, control host and two thread clamping mechanism, the yarn tensioning mechanism, yarn breakage detection mechanism, two thread clamping mechanism are electrically connected with control host, two two thread clamping mechanism is located on the two sides of yarn tensioning mechanism respectively;The yarn tensioning mechanism includes the electric push rod (2) fixedly connected on the upside of the bottom plate (1), the piston rod of the electric push rod (2) is installed with the first support (6), the first support (6) is connected with the first runner (7) in contact with the yarn.

2. A warp knitting machine tensioning mechanism according to claim 1, characterised in that: The yarn breakage detection mechanism includes the pressure sensor (5) installed between the piston rod of the electric push rod (2) and the first support (6), and the pressure sensor (5) and the control host are electrically connected.

3. A warp knitting machine tensioning mechanism according to claim 2, characterised in that: The piston rod of the electric push rod (2) is fixedly connected with the outer sleeve (3), the inner slide of the outer sleeve (3) is connected with the connecting rod (4), one end of the connecting rod (4) and the first support (6) are fixedly connected, and the pressure sensor (5) is fixedly connected to the inner end of the outer sleeve (3) away from the first support (6).

4. A warp knitting machine tensioning mechanism according to claim 1, characterised in that: The thread clamping mechanism includes a frame (8) fixedly connected to the bottom plate (1), a frame (8) is slidably connected with an extrusion positioning unit, and an electric drive mechanism is assembled on the frame (8). The electric drive mechanism and the control host are electrically connected.

5. A warp knitting machine tensioning mechanism according to claim 4, characterised in that: The extrusion positioning unit includes a second support (9) slidably connected inside the frame (8), and a second runner (12) is rotatably connected inside the second support (9).

6. A warp knitting machine tensioning mechanism according to claim 5, characterised in that: The electric drive mechanism includes an electromagnet (10) and a magnet (11), the electromagnet (10) is fixedly connected inside the frame (8), the magnet (11) is fixedly connected on the second support (9), the electromagnet (10) and the control host are electrically connected, and the electromagnet (10) and the magnet (11) are magnetically repulsive when the electromagnet (10) is energized.

7. A warp knitting machine tensioning mechanism according to claim 5, characterised in that: The frame (8) is further fixedly connected with an anti-skid block (13), the material of the anti-skid block (13) is rubber, and an arc surface (14) is formed on the side opposite to the second runner (12) of the anti-skid block (13).

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