Tension compensation device of grass wrapping machine

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By designing a tension compensation device in the grass wire coater, the elastic force of the spring barrel controls the yarn tension, the problem of free splashing of yarn when unwinding at high speed is solved, and the uniformity and production of the yarn tension state are achieved. Improved efficiency.

CN222434721UActive Publication Date: 2025-02-07CHANGZHOU RUN FENG YUAN TEXTILE MASCH MFG CO LTD

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Patent Information

Application Number: CN202421180506.0
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-28
Publication Date: 2025-02-07
Estimated Expiration: 2034-05-28

AI Technical Summary

Technical Problem

When the existing grass wire coater rotates at high speed, due to the different tightness of the yarn on the yarn barrel, the yarn is in a free splashing state when the high speed is unwinding, and the yarn tension cannot be controlled, which makes the yarn break easily, and the product is made. Uneven tension affects production efficiency.

Method used

A tension compensation device for a grass wire coater is designed, including an upper pressure ring, a lower pressure ring and a spring tube. The elastic force of the spring tube generates resistance to the yarn, forming stable support and tensioning force, and controlling The tension state of the yarn.

Benefits of technology

It effectively avoids the free splashing state of yarn when unwinding at high speed, ensures the uniformity of the yarn tension state, avoids the problems of yarn breakage and uneven product tension, and improves production efficiency.

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Abstract

The utility model discloses a tension compensation device of a grass yarn wrapping machine, the grass yarn wrapping machine comprises a rotating shaft and a yarn cylinder, the upper end and the lower end of the yarn cylinder are respectively provided with an upper clamping ring and a lower clamping ring, the upper end of the upper clamping ring is provided with an upper frustum, the tension compensation device comprises an upper pressing ring, a lower pressing ring and a leaf spring cylinder, the upper pressing ring is in a circular ring shape, and an inner hole is a conical hole; the lower pressing ring is composed of a circular ring with a frustum and a supporting piece connected with the circular ring, the supporting piece is connected with a machine frame of the grass yarn wrapping machine, the upper pressing ring is installed on the circular ring of the lower pressing ring, the lower end of the spring piece barrel is clamped between a conical hole of the upper pressing ring and the frustum of the lower pressing ring, and the lower end of the spring piece barrel is connected with the lower pressing ring. The upper clamping ring is sleeved with the upper pressing ring, the lower pressing ring and the leaf spring barrel, and the upper end of the leaf spring barrel makes contact with the upper frustum of the upper clamping ring or a gap is formed between the upper end of the leaf spring barrel and the upper frustum of the upper clamping ring. According to the utility model, the artificial turf yarns are prevented from being in a free splashing state during high-speed unwinding, so that the tension state of the artificial turf yarns is effectively controlled.

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Description

Technical Field

[0001] The utility model relates to a grass-thread covering machine, in particular to a tension compensation device of the grass-thread covering machine, belonging to the technical field of textile equipment. Background Art

[0002] The grass yarn covering machine is a device that covers and bundles several grass yarns with artificial turf yarn to form a bundle of artificial grass yarns that can be directly tufted. The grass yarn covering machine includes a rotating shaft with a center hole, a yarn drum with artificial turf yarn wound on it, a guide wheel and a traction roller. The rotating shaft is arranged vertically and driven to rotate by a driving mechanism. The yarn drum is installed on the rotating shaft and driven by the rotating shaft to rotate simultaneously. The artificial turf yarn includes curved yarn, high-elastic polypropylene straight yarn, etc. During operation, several grass yarns, i.e. straight yarns, output from the wire drawing machine pass through the guide wheel and the traction roller and enter the center hole of the rotating shaft. At the same time, the artificial turf yarn, i.e. curved yarn, is unwound from the yarn drum and enters the center hole of the rotating shaft. Through the high-speed rotation of the yarn drum, the artificial turf yarn quickly covers and bundles the turf yarn to form artificial grass yarn that can be directly tufted. The traction mechanism and the winding mechanism under the rotating shaft pull and wind the grass yarn in turn for use in the subsequent process.

[0003] However, the existing grass silk covering machine has the following shortcomings in actual working process: that is, when the rotating shaft rotates at high speed, the yarn on the yarn bobbin itself has different tightness. When it directly enters the rotating shaft, the centrifugal force during high-speed unwinding will cause the yarn on the yarn bobbin to be in a free splashing state. The splashing state changes with different rotation speeds, and the yarn tension state cannot be controlled. Not only is the yarn easy to break, but the tension of the bundled and twisted product will also be uneven. When the wound yarn bobbin flows to the next process, the uneven tension will cause the bundled straight wire and curved wire to be of different lengths. Long-term work will cause the extra curved wire to cause the yarn hole to be blocked, which greatly reduces the product quality and production efficiency. Summary of the invention

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a tension compensation device for a grass yarn covering machine which can prevent the artificial turf yarn from being in a free splashing state when unwinding at high speed and can effectively control the tension state of the artificial turf yarn.

[0005] In order to solve the above technical problems, the utility model adopts such a tension compensation device of a grass yarn covering machine, the grass yarn covering machine includes a rotating shaft with a center hole and a yarn drum wound with artificial turf yarn, the rotating shaft is arranged vertically and driven to rotate by a driving mechanism, an upper clamping ring and a lower clamping ring are respectively installed at the upper end and the lower end of the yarn drum, the yarn drum is installed on the rotating shaft through the upper clamping ring and the lower clamping ring, an upper cone is provided at the upper end of the upper clamping ring, the tension compensation device includes an upper pressure ring, a lower pressure ring and a spring The sheet tube comprises an upper pressure ring in a circular shape and a tapered hole in the inner hole, the lower pressure ring is composed of a circular ring with a frustum and a support connected to the circular ring, the support is connected to the frame of the grass silk covering machine, the upper pressure ring is installed on the circular ring of the lower pressure ring, the lower end of the spring sheet tube is clamped between the tapered hole of the upper pressure ring and the frustum of the lower pressure ring, the upper pressure ring, the lower pressure ring and the spring sheet tube are sleeved on the upper clamping ring, and the upper end of the spring sheet tube is in contact with the upper frustum of the upper clamping ring or there is a gap between the two.

[0006] As a preferred embodiment of the utility model, the spring leaf tube is in the shape of a truncated cone, and the taper of the upper end of the spring leaf tube is the same as the taper of the upper cone of the upper clamping ring, and the center of the circular ring of the lower pressure ring and the center of the rotating shaft are on the same central axis.

[0007] As a preferred embodiment of the utility model, the supporting member is a supporting plate or a supporting rod or a supporting shaft, the ring and the supporting member are integrally formed as a whole, or the ring is fixedly connected to the supporting member by welding to form an integral member, and the supporting member is rotatably connected to the frame of the grass silk covering machine through an angle-adjustable hinge.

[0008] As a preferred embodiment of the utility model, the support member is a support plate or a support rod or a support shaft, the ring is rotatably connected to one end of the support member through a hinge, and the other end of the support member is fixedly connected to the frame of the grass silk covering machine.

[0009] As a preferred embodiment of the present utility model, the driving mechanism includes a motor and a synchronous belt transmission mechanism, and the motor drives the rotating shaft to rotate through the synchronous belt transmission mechanism.

[0010] After adopting the above technical solution, the utility model has the following beneficial effects:

[0011] Since the utility model is provided with an upper pressure ring, a lower pressure ring and a spring sheet tube, the upper pressure ring is in a circular ring shape and the inner hole is a tapered hole, the lower pressure ring is composed of a circular ring with a frustum and a supporting member connected to the circular ring, the upper pressure ring is installed on the circular ring of the lower pressure ring, the lower end of the spring sheet tube is clamped between the tapered hole of the upper pressure ring and the frustum of the lower pressure ring, the upper pressure ring, the lower pressure ring and the spring sheet tube are sleeved on the upper clamping ring, the upper end of the spring sheet tube is in contact with the upper frustum of the upper clamping ring or there is a gap between the two. During operation, the artificial turf yarn unwound from the yarn tube passes through the circular ring of the lower pressure ring and the upper pressure ring in sequence, and then passes through the contact point between the spring sheet tube and the upper cone of the upper clamping ring or the gap between the two to enter the center hole of the rotating shaft. During this period, the spring sheet tube generates a certain resistance to the artificial turf yarn by elastic force, forming a stable support and tensioning force for the artificial turf yarn. The artificial turf yarn is safely controlled throughout the entire working process, and the artificial turf yarn unwound from the yarn tube will not be separated from the safety tension guide due to the action of centrifugal force, thereby avoiding the artificial turf yarn from being in a free splashing state when unwound at high speed, and the tension state of the artificial turf yarn is effectively controlled.

[0012] The circular ring and the support member of the utility model are an integral part, and the support member is rotatably connected to the frame of the grass silk covering machine through a hinge with an adjustable angle, or the circular ring is rotatably connected to one end of the support member through a hinge, and the other end of the support member is fixedly connected to the frame of the grass silk covering machine. With such a structure, when the yarn bobbin needs to be replaced, it can be replaced by simply turning the hinge to a certain angle, which is simple to operate, safe and reliable.

[0013] The utility model has the advantages of simple structure and convenient implementation; the length of the lawn yarn and the artificial lawn yarn per unit length is consistent, thus providing safe and reliable raw materials for the next process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0015] Figure 1 The utility model is a structural schematic diagram of the tension compensation device of the grass yarn covering machine.

[0016] Figure 2 It is a structural schematic diagram of the upper pressure ring in the utility model.

[0017] Figure 3 for Figure 2 Schematic top view of .

[0018] Figure 4 It is a structural schematic diagram of the lower pressure ring in the utility model.

[0019] Figure 5 for Figure 4 Schematic cross-sectional view along line A-A.

[0020] Figure 6 It is a structural schematic diagram of the spring leaf cylinder in the utility model.

[0021] Figure 7 It is a structural schematic diagram of the upper clamping ring in the utility model.

[0022] Figure 8 for Figure 7 Schematic top view of . DETAILED DESCRIPTION

[0023] See also Figures 1 to 8 The utility model provides a tension compensation device for a grass-thread covering machine. The grass-thread covering machine comprises a rotating shaft 1 with a center hole 1-1 and a yarn drum 3 wound with an artificial turf yarn 2. The rotating shaft 1 is arranged vertically and driven to rotate by a driving mechanism. An upper clamping ring 4 and a lower clamping ring 5 are respectively arranged at the upper end and the lower end of the yarn drum 3. The yarn drum 3 is installed on the rotating shaft 1 through the upper clamping ring 4 and the lower clamping ring 5. An upper cone 4-1 is arranged at the upper end of the upper clamping ring 4. The tension compensation device comprises an upper pressure ring 6, a lower pressure ring 7 and a spring sheet tube 8. The upper pressure ring 6 is in a circular shape and has a tapered inner hole. The lower pressure ring 7 is composed of The invention is composed of a circular ring 7-1 with a frustum 7a and a supporting member 7-2 connected to the circular ring 7-1, wherein the supporting member 7-2 is connected to a frame 12 of the grass silk covering machine, the upper pressure ring 6 is mounted on the circular ring 7-1 of the lower pressure ring 7 by screws, the lower end of the spring sheet tube 8 is clamped between the conical hole of the upper pressure ring 6 and the frustum 7a of the lower pressure ring 7, the upper pressure ring 6, the lower pressure ring 7 and the spring sheet tube 8 are sleeved on the upper clamping ring 4, and the upper end of the spring sheet tube 8 is in contact with the upper frustum 4-1 of the upper clamping ring 4 or there is a gap between the two, and the spacing of the gap is preferably less than or equal to the diameter of the artificial turf yarn 2.

[0024] As a preferred embodiment of the present invention, Figure 1 , 6 As shown, the spring leaf tube 8 is made of spring leaf and is in the shape of a truncated cone. The taper of the upper end of the spring leaf tube 8 is the same as the taper of the upper cone 4-1 of the upper clamping ring 4. The center of the ring 7-1 of the lower pressure ring 7 and the center of the rotating shaft 1 are on the same central axis.

[0025] As a preferred embodiment of the present invention, Figure 1 , 4 As shown in Figure 5, the support member 7-2 is a support plate or a support rod or a support shaft. Only the support plate is shown in the figure, and the support rod or the support shaft is not shown. The ring 7-1 and the support member 7-2 are integrally made into a whole piece, or the ring 7-1 is fixedly connected to the support member 7-2 by welding to form an integral piece. The support member 7-2 is rotatably connected to the frame 12 of the grass silk covering machine through a commercially available or conventional angle-adjustable hinge 9.

[0026] As a preferred embodiment of the utility model, the support member 7-2 is a support plate or a support rod or a support shaft, the ring 7-1 is rotatably connected to one end of the support member 7-2 through a hinge, and the other end of the support member 7-2 is fixedly connected to the frame 12 of the grass silk covering machine, which is not shown in the figure.

[0027] As a preferred embodiment of the present invention, Figure 1 As shown, the driving mechanism includes a motor 10 and a synchronous belt transmission mechanism 11 , and the motor 10 drives the rotating shaft 1 to rotate through the synchronous belt transmission mechanism 11 .

[0028] When the utility model is working, Figure 1 As shown, the artificial turf yarn 2 unwound from the yarn tube 3 passes through the circular ring 7-1 of the lower pressure ring 7, the upper pressure ring 6 in sequence, and then passes through the contact point between the spring sheet tube 8 and the upper cone 4-1 of the upper clamping ring 4 or the gap between the two to enter the central hole 1-1 of the rotating shaft 1. During this period, the spring sheet tube 8 generates a certain resistance to the artificial turf yarn 2 by elastic force, forming a stable support and tensioning force for the artificial turf yarn 2. The artificial turf yarn 2 is safely controlled throughout the entire working process, and the artificial turf yarn 2 unwound from the yarn tube 3 will not be separated from the safety tension guide due to the action of centrifugal force, thereby avoiding the artificial turf yarn 2 from being in a free splashing state when unwound at high speed, and the tension state of the artificial turf yarn 2 is effectively controlled.

[0029] After trial use, the utility model avoids the artificial turf yarn from being in a free splashing state when unwinding at high speed, and effectively controls the tension state of the artificial turf yarn, thus achieving good results.

Claims

1. A tension compensation device for a grass yarn covering machine, the grass yarn covering machine comprising a rotating shaft (1) having a center hole (1-1) and a yarn drum (3) wound with artificial turf yarn (2), the rotating shaft (1) being arranged vertically and driven to rotate by a driving mechanism, an upper clamping ring (4) and a lower clamping ring (5) being respectively arranged at the upper end and the lower end of the yarn drum (3), the yarn drum (3) being mounted on the rotating shaft (1) via the upper clamping ring (4) and the lower clamping ring (5), the upper end of the upper clamping ring (4) being provided with an upper frustum (4-1), characterized in that: The tension compensation device comprises an upper pressure ring (6), a lower pressure ring (7) and a spring sheet tube (8); the upper pressure ring (6) is in a circular ring shape and has a conical inner hole; the lower pressure ring (7) is composed of a circular ring (7-1) having a frustum (7a) and a support member (7-2) connected to the circular ring (7-1); the support member (7-2) is connected to a frame of a grass silk covering machine; the upper pressure ring (6) is mounted on the circular ring (7-1) of the lower pressure ring (7); the lower end of the spring sheet tube (8) is clamped between the conical hole of the upper pressure ring (6) and the frustum (7a) of the lower pressure ring (7); the upper pressure ring (6), the lower pressure ring (7) and the spring sheet tube (8) are sleeved on the upper clamping ring (4); and the upper end of the spring sheet tube (8) is in contact with the upper frustum (4-1) of the upper clamping ring (4) or there is a gap between the two.

2. The tension compensation device of the grass yarn covering machine according to claim 1 is characterized in that: The spring sheet tube (8) is in the shape of a truncated cone, and the taper of the upper end of the spring sheet tube (8) is the same as the taper of the upper truncated cone (4-1) of the upper clamping ring (4), and the center of the circular ring (7-1) of the lower pressure ring (7) and the center of the rotating shaft (1) are located on the same central axis.

3. The tension compensation device of the grass yarn covering machine according to claim 1 or 2, characterized in that: The support member (7-2) is a support plate or a support rod or a support shaft; the circular ring (7-1) and the support member (7-2) are integrally manufactured as a whole, or the circular ring (7-1) is fixedly connected to the support member (7-2) by welding to form a whole; and the support member (7-2) is rotatably connected to a frame of the grass silk covering machine via an angle-adjustable hinge (9).

4. The tension compensation device of the grass yarn covering machine according to claim 1 or 2, characterized in that: The support member (7-2) is a support plate or a support rod or a support shaft; the ring (7-1) is rotatably connected to one end of the support member (7-2) via a hinge; and the other end of the support member (7-2) is fixedly connected to a frame of the grass silk covering machine.

5. The tension compensation device of the grass yarn covering machine according to claim 1 is characterized in that: The driving mechanism comprises a motor (10) and a synchronous belt transmission mechanism (11); the motor (10) drives the rotating shaft (1) to rotate via the synchronous belt transmission mechanism (11).