An inertial yarn feeding device for an intelligent robot for needle-punched carpet

Abstract

The present invention relates to an inertial yarn feeding device for a gun-stitched carpet intelligent robot, which is arranged on a yarn path and mounted on a frame through a fixed seat, and comprises a first yarn guide roller and a second yarn guide roller with smooth surfaces and arranged in parallel, one end of the first yarn guide roller and one end of the second yarn guide roller both pass through the fixed seat and are vertically rotatably connected to the fixed seat through a bearing, and a driving motor capable of driving the first yarn guide roller and the second yarn guide roller to rotate is installed on the fixed seat. The present invention utilizes the yarn to pass through the rotating smooth first yarn guide roller and the second yarn guide roller, and utilizes the traction force of the tufting gun head to control the friction between the yarn and the two yarn guide rollers, so as to achieve the purpose of feeding yarn in an appropriate amount.

Description

Technical Field

[0001] The invention relates to the technical field of carpet processing, and in particular to an inertial yarn feeding device for an intelligent robot for needle-punching carpets. Background Art

[0002] Carpet making robots are generally equipped with yarn feeding devices, but the current yarn feeding system only guides the yarn and cooperates with the forward and backward movements of the robot to realize the feeding of the yarn. When the current carpet making robot is in use, the tufting gun head often needs to perform tufting work at different high and low positions according to processing requirements. When the tufting gun head is transferred from a high position to a low position, due to the height difference, when the yarn at the high position of the tufting gun head drops to the low position, the yarn at the gun head will become relatively longer, resulting in too much yarn surplus at the gun head. Similarly, when the tufting gun head is transferred from a low position to a high position, the yarn surplus at the gun head will be insufficient.

[0003] Therefore, the yarn feeding device of the robot arm cannot control the yarn feeding amount according to the yarn usage. If the yarn feeding amount is too large, the remaining yarn will accumulate more and more at the gun head of the robot arm, which will easily be entangled in the machine and cause accidents; if the yarn feeding amount is too small, the carpet surface will have tufting defects due to insufficient yarn feeding, thereby affecting the processing and production of the carpet, resulting in a decrease in the yield rate and an increase in production costs. Summary of the invention

[0004] To address the deficiencies of the prior art, the present invention provides an inertial yarn feeding device for a gun-stitched carpet intelligent robot, which can control the yarn feeding amount according to the position of the tufting gun head to achieve the purpose of feeding the yarn in an appropriate amount.

[0005] The present invention is achieved through the following technical solutions:

[0006] Provided is an inertial yarn feeding device for a gun-stitched carpet intelligent robot, which is arranged on a yarn path and mounted on a frame through a fixed seat, comprising a first yarn guide roller and a second yarn guide roller with smooth surfaces and arranged in parallel, one end of the first yarn guide roller and one end of the second yarn guide roller both pass through the fixed seat and are vertically rotatably connected to the fixed seat through a bearing, and a driving motor that can drive the first yarn guide roller and the second yarn guide roller to rotate is installed on the fixed seat.

[0007] In this scheme, a first yarn guide roller and a second yarn guide roller are set to wind the yarn alternately around the first yarn guide roller and the second yarn guide roller in sequence and then feed it into the tufting gun head. When the tufting gun head performs tufting work, the yarn needs to move forward, so the yarn will be tightened on the two yarn guide rollers when the advancing yarn moves forward, increasing the friction between the yarn and the two yarn guide rollers. With the help of the high-speed rotation of the yarn guide rollers, the required yarn can be driven to feed forward. When the tufting gun head stops working, the friction between the yarn and the yarn guide roller becomes smaller, and the yarn will not be fed due to the rotation of the yarn guide roller, thereby achieving the purpose of feeding the right amount of yarn.

[0008] Furthermore, a yarn feeding rod is vertically fixed on the fixed seat above the first yarn guide roller and the second yarn guide roller, and yarn feeding openings that penetrate the yarn feeding rod are evenly opened on the yarn feeding rod along the length direction.

[0009] The yarn feeding opening on the yarn feeding rod is used to guide the yarn, and the yarn is wound around the first yarn guide roller and the second yarn guide roller through the yarn feeding opening, so as to facilitate guiding the yarn for yarn feeding.

[0010] Preferably, a yarn protection tube is fixed in the yarn feeding port.

[0011] The yarn protection tube in the yarn feeding port helps to protect the yarn and reduce the wear of the yarn in the yarn feeding port.

[0012] Furthermore, a positioning rod is vertically fixed on the fixed seat between the first yarn guide roller and the second yarn guide roller, a vertical plate for positioning the yarn is fixed on the positioning rod, yarn sorting grooves are evenly opened on the vertical plate, and yarn limiters are installed in the yarn sorting grooves.

[0013] The vertical plate on the positioning rod is provided with a yarn sorting groove for maintaining the position of the yarn wound on the first yarn guide roller and the second yarn guide roller to prevent entanglement between multiple yarns, causing yarn feeding confusion and leading to system failure.

[0014] Furthermore, the yarn feeding rod is arranged close to the first yarn guide roller, and the straight line where the axis of the yarn feeding opening on the yarn feeding rod is located is tangent to the first yarn guide roller.

[0015] The axis of the yarn feeding port on the yarn feeding rod is tangent to the first yarn guide roller, so that the yarn forms an angle of about 90° when it is wound around the first yarn guide roller after passing through the yarn feeding port, which helps the yarn to transition naturally and keep the yarn in a vertical posture and wound around the first yarn guide roller.

[0016] Furthermore, the first yarn guide roller and the second yarn guide roller are at the same height on the fixed seat.

[0017] Furthermore, two parallel driving wheels are installed on the output shaft of the driving motor, and driven wheels are installed at one end of the first yarn guide roller and the second yarn guide roller connected to the fixed seat, and the two driving wheels are respectively connected to the two driven wheels by belts.

[0018] Beneficial effects of the present invention:

[0019] By setting a first yarn guide roller and a second yarn guide roller, the yarn is alternately wound around the first yarn guide roller and the second yarn guide roller in sequence and then fed into the tufting gun head. When the tufting gun head needs to advance the yarn during tufting, the yarn will be tightened on the two yarn guide rollers to increase the friction between the yarn and the two yarn guide rollers. With the help of the high-speed rotation of the yarn guide rollers, the required yarn can be driven to feed forward. When the tufting gun head stops working, the friction between the yarn and the yarn guide roller becomes smaller, and the yarn will not be fed due to the rotation of the yarn guide roller, thereby achieving the purpose of feeding the right amount of yarn. The yarn feeding device allows the carpet making robot to control the yarn feeding amount according to needs, and there will be no problem of excessive yarn accumulation or insufficient yarn at the gun head, thereby improving the stability of carpet processing, ensuring product yield, and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 for Figure 1 A top view of

[0022] Figure 3 for Figure 1 Schematic diagram of the structure of the positioning rod.

[0023] As shown in the figure:

[0024] 1. Fixed seat, 2. First yarn guide roller, 3. Second yarn guide roller, 4. Yarn feeding rod, 5. Yarn protection tube, 6. Positioning rod, 7. Vertical plate, 8. Yarn, 9. Yarn feeding port, 10. Yarn sorting slot, 11. Driving motor, 12. Driving wheel, 13. Driven wheel, 14. Yarn limiter. DETAILED DESCRIPTION

[0025] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0026] An inertial yarn feeding device for a needle-punched carpet intelligent robot is arranged on the path of a yarn 8 and mounted on a frame through a fixed seat 1. It includes a first yarn guide roller 2 and a second yarn guide roller 3 with smooth surfaces and arranged in parallel. As an embodiment of the present invention, the first yarn guide roller 2 and the second yarn guide roller 3 are at the same height on the fixed seat 1.

[0027] One end of the first yarn guide roller 2 and one end of the second yarn guide roller 3 both pass through the fixed seat 1 and are vertically rotatably connected with the fixed seat 1 through a bearing, and a driving motor 11 that can drive the first yarn guide roller 2 and the second yarn guide roller 3 to rotate is installed on the fixed seat 1. Two driving wheels 12 arranged in parallel are installed on the output shaft of the driving motor 11, and driven wheels 13 are respectively installed at one end of the first yarn guide roller 2 and the second yarn guide roller 3 connected to the fixed seat 1, and the two driving wheels 12 are respectively connected to the two driven wheels 13 by belts.

[0028] The fixing seat 1 is vertically fixed with a yarn feeding rod 4 above the first yarn guide roller 2 and the second yarn guide roller 3. The yarn feeding rod 4 is evenly provided with a yarn feeding port 9 penetrating the yarn feeding rod 4 along the length direction, and a yarn protection tube 5 is fixed in the yarn feeding port 9. The yarn protection tube 5 is generally made of ceramic, which is wear-resistant and strong, and helps to protect the yarn 8. The yarn feeding rod 4 is arranged close to the first yarn guide roller 2, and the straight line where the axis of the yarn feeding port 9 on the yarn feeding rod 4 is located is tangent to the first yarn guide roller 2.

[0029] The fixing seat 1 is vertically fixed with a positioning rod 6 between the first yarn guide roller 2 and the second yarn guide roller 3, and a vertical plate 7 for positioning the yarn 8 is fixed on the positioning rod 6. Yarn sorting grooves 10 are evenly opened on the vertical plate 7, and a yarn limiter 14 is installed in the yarn sorting groove 10. The yarn limiter 14 is also a ceramic part, which has the function of protecting the yarn 8 on the one hand, and forming an S-shaped notch on the other hand. The yarn 8 enters the interior along the S-shaped notch and is not easy to be separated from the yarn 8 limiter, which plays the role of limiting the yarn 8 and also facilitates the yarn 8 to be taken out of the yarn sorting groove 10.

[0030] Before the carpet making robot is turned on, the yarn 8 is first wound onto the yarn feeding device as follows:

[0031] The yarn 8 is led out from the creel, passes through the yarn feeding port 9 through the yarn feeding rod 4, passes through the first yarn guide roller 2 and the second yarn guide roller 3 from below, is wound around the second yarn guide roller 2, passes through the yarn sorting groove 10 on the vertical plate 7, is wound around below the first yarn guide roller 2, and is then wound out from above the second yarn guide roller 3, and passes through another yarn sorting groove 10 on the vertical plate 7 again, passes through the vertical plate 7, is led out from above the first yarn guide roller 2 and is sent into the tufting gun head, and the driving motor 11 is started to drive the first yarn guide roller 2 and the second yarn guide roller 3 to rotate.

[0032] After starting the carpet robot, the tufting gun head performs tufting work. When the yarn 8 needs to move forward, the tufting gun head will give the yarn a forward traction force. Under the action of the traction force, the yarn 8 will be tightened on the two yarn guide rollers, and the friction between the yarn 8 and the two yarn guide rollers will increase. With the help of the high-speed rotation of the yarn guide rollers, the required yarn 8 can be driven to feed forward. When the tufting gun head stops working, the yarn is not subjected to force, and the friction between the yarn and the yarn guide roller is obviously reduced and is not enough to drive the yarn 8 to move. The yarn 8 will not be fed forward due to the rotation of the yarn guide roller, and thus remain motionless.

[0033] Of course, the above description is not limited to the above examples. Technical features not described in the present invention can be achieved by or by using existing technologies, which will not be described here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention, and should also fall within the scope of protection of the claims of the present invention.

Claims

1. An inertial yarn feeding device for a carpet-piercing intelligent robot, arranged on a yarn path and mounted on a frame through a fixing seat, characterized in that: The present invention comprises a first yarn guide roller and a second yarn guide roller which are smooth in surface and arranged in parallel, one end of the first yarn guide roller and the other end of the second yarn guide roller both pass through a fixed seat and are vertically rotatably connected with the fixed seat through a bearing, and a driving motor which can drive the first yarn guide roller and the second yarn guide roller to rotate is installed on the fixed seat; a positioning rod is vertically fixed on the fixed seat between the first yarn guide roller and the second yarn guide roller, a vertical plate which can position the yarn is fixed on the positioning rod, yarn sorting grooves are evenly opened on the vertical plate, and a yarn limiter is installed in the yarn sorting groove; a yarn feeding rod is vertically fixed on the fixed seat above the first yarn guide roller and the second yarn guide roller, and yarn feeding ports which pass through the yarn feeding rod are evenly opened along the length direction on the yarn feeding rod; the yarn is led out from the yarn frame, passes through the yarn feeding rod through the yarn feeding port, is wound from above the second yarn guide roller through the bottom of the first yarn guide roller and the second yarn guide roller, passes through the yarn sorting groove on the vertical plate, is wound to the bottom of the first yarn guide roller, is wound out from the top of the second yarn guide roller, passes through the yarn sorting groove on the vertical plate again, passes through another yarn sorting groove on the vertical plate, passes through the vertical plate, is led out from the top of the first yarn guide roller and is sent into the tufting gun head.

2. The inertial yarn feeding device for the intelligent robot for needle-punched carpet according to claim 1 is characterized in that: A yarn protection tube is fixed in the yarn feeding port.

3. The inertial yarn feeding device for the intelligent robot for needle-punched carpet according to claim 1 is characterized in that: The yarn feeding rod is arranged close to the first yarn guide roller, and the straight line where the axis of the yarn feeding opening on the yarn feeding rod is located is tangent to the first yarn guide roller.

4. The inertial yarn feeding device for the intelligent robot for needle-punched carpet according to claim 1 is characterized in that: The first yarn guide roller and the second yarn guide roller are at the same height on the fixed seat.

5. The inertial yarn feeding device for the intelligent robot for needle-punched carpet according to claim 1 is characterized in that: Two parallel driving wheels are installed on the output shaft of the driving motor, and driven wheels are installed on one end of the first yarn guide roller and the second yarn guide roller connected to the fixed seat respectively, and the two driving wheels are respectively connected to the two driven wheels by belts.

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