Double-model weft straightening and feeding device

Abstract

The utility model belongs to the technical field of yarn feeding devices, and discloses a double-model weft yarn straightening and feeding device. The automatic wire feeding device is mainly and technically characterized by comprising a wire feeding mechanism, a straightening mechanism and a wire falling mechanism with a cutting mechanism, the wire feeding mechanism comprises a wire feeding frame, a wire feeding power mechanism and wire holding wheel sets, and the two wire holding wheel sets are arranged front and back; each wire holding wheel set comprises a lower wire holding wheel in power connection with the wire feeding power mechanism and an upper wire holding wheel located above the lower wire holding wheel, the rear end of a wire holding shaft of the upper wire holding wheel is movably connected with the wire feeding frame, a lifting air cylinder is arranged on the wire feeding frame above the upper wire holding wheel, an ejector rod of the lifting air cylinder is connected with the wire holding shaft, and the lifting air cylinder is connected with the wire holding shaft. The number of the straightening mechanisms is two, and the straightening mechanisms correspond to the wire holding wheel sets. The structure is simple, occupied space is small, and wire feeding efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of wire feeding device, especially relates to a double model weft wire straightening wire feeding device. BACKGROUND

[0002] At present, the length and thickness of weft wire of such as breeding net and other special-shaped meshes are not the same. In order to realize the production line welding of the mesh, two existing weft wire feeding devices are needed to complete. The above-mentioned method has the following defects: first, the space occupied is large, generally two weft wire feeding devices are placed on both sides of the welding machine, not only a part of space is occupied by the weft wire feeding device, but also a very large space is occupied by the wire feeding mechanism corresponding to the weft wire feeding device; second, the structure is complex, and the equipment cost is high; third, in order to ensure precision, the weft wire feeding mechanism adopts a servo motor to provide wire feeding power when the two weft wire feeding mechanisms feed, the wire feeding speed is slow, and the welding efficiency is low. INVENTION CONTENTS

[0003] The technical problem to be solved by the utility model is to provide a double model weft wire straightening wire feeding device which is simple in structure, small in space occupied, fast in wire feeding speed, high in welding efficiency and wide in application range.

[0004] In order to solve the above-mentioned problems, the technical scheme that the double model weft wire straightening wire feeding device adopts is as follows:

[0005] The double model weft wire straightening wire feeding device comprises a wire feeding mechanism, a straightening mechanism and a wire falling mechanism with a cutting mechanism, the wire feeding mechanism comprises a wire feeding frame, a wire feeding power mechanism and a wire pinching wheel set, the wire pinching wheel set is arranged in two groups in front and back, each group of wire pinching wheel set comprises a lower wire pinching wheel which is power-connected with the wire feeding power mechanism and an upper wire pinching wheel which is located above, the rear end of the wire pinching shaft of the upper wire pinching wheel is movably connected with the wire feeding frame, a lifting cylinder is arranged on the wire feeding frame above the upper wire pinching wheel, the top rod of the lifting cylinder is connected with the wire pinching shaft, and the straightening mechanism is two groups corresponding to the wire pinching wheel set.

[0006] The additional technical features are as follows:

[0007] The two groups of wire pinching wheel sets are arranged in front and back in the weft wire advancing direction;

[0008] A weft wire support frame is arranged in front of the wire feeding mechanism, a support pipe is arranged on the top of the weft wire support frame, and the inner lower end surface of the support pipe is slightly higher than the plane where the upper edge of the lower wire pinching wheel is located.

[0009] The double-model weft yarn straightening and feeding device has the following advantages compared with the prior art: firstly, the device comprises a feeding mechanism, a straightening mechanism and a falling mechanism with a cutting mechanism, the feeding mechanism comprises a feeding frame, a feeding power mechanism and a pinching wheel set, the pinching wheel set is arranged in two groups in front and back, each pinching wheel set comprises a lower pinching wheel connected with the feeding power mechanism and an upper pinching wheel arranged above, the rear end of the pinching shaft of the upper pinching wheel is movably connected with the feeding frame, a lifting cylinder is arranged on the feeding frame above the upper pinching wheel, the top rod of the lifting cylinder is connected with the pinching shaft, the straightening mechanism comprises two groups corresponding to the pinching wheel set, for the mesh that needs to be welded with two types of weft yarns, the two types of weft yarns are respectively arranged between the pinching wheel sets, the top rod of the lifting cylinder of the corresponding pinching wheel set is pressed downward to press the upper pinching wheel and the lower pinching wheel of the corresponding pinching wheel set, the feeding power mechanism drives the lower pinching wheel to rotate all the time, the upper pinching wheel and the lower pinching wheel are pressed tightly, the pinching wheel set feeds the weft yarn, when the weft yarn reaches the set length, the top rod of the lifting cylinder is retracted, the upper pinching wheel and the lower pinching wheel of the pinching wheel set are separated, the weft yarn no longer moves forward, the cutting mechanism on the falling mechanism cuts the weft yarn, the cut weft yarn falls above the warp yarn between the welding heads, and the welding is realized; similarly, when another type of weft yarn is needed, the top rod of the lifting cylinder of the pinching wheel set is pressed downward to press the upper pinching wheel and the lower pinching wheel of the pinching wheel set, the weft yarn is pressed forward, and the feeding function is realized; similarly, for the weft yarns of different lengths, the weft yarns can also be fed by different pinching wheel sets, so that the structure is simple, the space occupation is small, and the feeding efficiency is high; secondly, the two pinching wheel sets are arranged left and right in the weft yarn advancing direction, the weft yarns fed by different pinching wheel sets are prevented from interfering with each other, and the use is more convenient; thirdly, a weft yarn support frame is arranged in front of the feeding mechanism, a support bracket is arranged on the top of the weft yarn support frame, the inner lower end surface of the support bracket is slightly higher than the plane on which the upper edge of the lower pinching wheel is located, so that the weft yarn is fed after the corresponding upper pinching wheel is pressed downward, the upper pinching wheel of the pinching wheel set is lifted when the weft yarn is not needed to be fed forward, the lower surface of the weft yarn is separated from the lower pinching wheel, the forward friction force of the weft yarn generated by the rotating lower pinching wheel is avoided, and the wear of the lower end of the weft yarn is also avoided. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 FIG. 1 is a structural schematic view of the double-model weft yarn straightening and feeding device of the utility model;

[0011] Figure 2 FIG. 4 is a structural schematic view of the feeding mechanism;

[0012] Figure 3 FIG. 5 is a side view of Figure 2 . DETAILED DESCRIPTION

[0013] The structure and operating principle of the dual-mode weft yarn straightening and feeding device of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] For clarity and ease of explanation, the direction in which the weft wire enters the mesh is defined as the front, and the direction in which the weft wire comes from is defined as the rear.

[0015] like Figure 1 , Figure 2 and Figure 3 The diagram shows the structure of the dual-mode weft yarn straightening and feeding device of this utility model. The device includes a yarn feeding mechanism 1, a straightening mechanism 2, and a yarn dropping mechanism 4 with a cutting mechanism 3. The yarn feeding mechanism 1 includes a yarn feeding frame 5, a yarn feeding power mechanism 6, and a yarn-feeding wheel set 7. The yarn-feeding wheel set 7 consists of a first yarn-feeding wheel set 8 and a second yarn-feeding wheel set 9 arranged front-to-back. Each set includes a lower yarn-feeding wheel 10 powered by the yarn feeding power mechanism 6 and an upper yarn-feeding wheel 11. The rear end of the yarn-feeding shaft 12 of the upper yarn-feeding wheel 11 is movably connected to the yarn feeding frame 5 via a hinge, rotating shaft, or other means. A lifting cylinder 13 is installed on the yarn feeding frame 5 above the upper yarn-feeding wheel 11, and the top rod 14 of the lifting cylinder 13 is connected to the yarn-feeding shaft 12. The straightening mechanism 2 consists of two sets corresponding to the yarn-feeding wheel sets 7.

[0016] For mesh requiring two types of weft wire for welding, the two different types of weft wire are placed between the lower weft wheel 10 and the upper weft wheel 11 of the first weft-feeding wheel group 8 and the second weft-feeding wheel group 9, respectively. To determine which type of weft wire is needed, the lifting cylinder 13 on the corresponding weft-feeding wheel group pushes down its top rod 14, pressing down the corresponding upper weft-feeding wheel 11. The wire feeding power mechanism 6 drives the lower weft-feeding wheel 10 to rotate continuously, pressing the upper and lower weft-feeding wheels 11 together. This weft-feeding wheel group feeds out the weft wire. When it reaches the set length, the lifting cylinder 13 retracts its top rod 14, separating the upper and lower weft-feeding wheels 11 and 10. The weft wire stops moving forward, and the cutting mechanism 3 on the wire dropping mechanism 4 cuts the weft wire. The cut weft wire falls above the warp wire between the welding heads, thus completing the welding. Similarly, when a different type of weft yarn is needed, the upper and lower weft rollers 11 and 10 of the weft roller assembly are pressed down by the push rod 14 of the lifting cylinder 13 corresponding to the weft roller assembly, thus pushing the weft yarn forward and achieving the yarn feeding function. Likewise, for weft yarns of different lengths, different weft roller assemblies can be used to achieve weft yarn feeding. This results in a simple structure, small space occupation, and high yarn feeding efficiency.

[0017] The first gripping roller group 8 and the second gripping roller group 9 are arranged left and right in the direction of weft yarn advance, which avoids mutual interference between the weft yarns fed by different gripping roller groups and makes them more convenient to use.

[0018] The weft thread supporting frame 15 is arranged in front of the weft thread feeding mechanism 1, and the supporting bracket 16 is arranged on the top of the weft thread supporting frame 15, the inner lower end surface of the supporting bracket 16 is slightly higher than the plane where the upper thread guide wheel 11 is located, so that the weft thread is completed after the corresponding upper thread guide wheel is pressed down, when the weft thread is not needed to be fed, the upper thread guide wheel 11 of the thread guide wheel set is lifted, the lower surface of the weft thread is separated from the lower thread guide wheel 10, the forward friction force of the rotating lower thread guide wheel 10 on the weft thread is avoided, and the lower end of the weft thread is also avoided from being abraded.

[0019] The protection scope of the utility model is not limited to the above-mentioned embodiment, as long as the structure is the same or similar to the double-type weft thread straightening and feeding device, the utility model falls within the protection scope.

Claims

1. A double model weft straightening and feeding device comprising a feeding mechanism, a straightening mechanism, a doffing mechanism with a cutting mechanism, the feeding mechanism comprising a feeding frame, a feeding power mechanism, a gripper wheel set, characterized in that: The two groups of the thread clamping wheel are arranged in front and back, each group of the thread clamping wheel comprises a lower thread clamping wheel connected with the thread feeding power mechanism and an upper thread clamping wheel arranged above, the rear end of the thread clamping shaft of the upper thread clamping wheel is movably connected with the thread feeding frame, a lifting cylinder is arranged on the thread feeding frame above the upper thread clamping wheel, the top rod of the lifting cylinder is connected with the thread clamping shaft, and the straightening mechanism is two groups corresponding to the thread clamping wheel groups.

2. A dual size weft straightening and delivery device according to claim 1 wherein: The two groups of the thread clamping wheel are arranged in front and back, each group of the thread clamping wheel comprises a lower thread clamping wheel connected with the thread feeding power mechanism and an upper thread clamping wheel arranged above, the rear end of the thread clamping shaft of the upper thread clamping wheel is movably connected with the thread feeding frame, a lifting cylinder is arranged on the thread feeding frame above the upper thread clamping wheel, the top rod of the lifting cylinder is connected with the thread clamping shaft, and the straightening mechanism is two groups corresponding to the thread clamping wheel groups.

3. The dual size weft straightening and delivery device of claim 1 wherein: A weft thread supporting frame is arranged in front of the thread feeding mechanism, a supporting bracket is arranged on the top of the weft thread supporting frame, and the inner lower end surface of the supporting bracket is slightly higher than the plane where the upper edge of the lower thread clamping wheel is located.

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