Cloth rolling machine with self-defined tension

Abstract

The utility model relates to the technical field of plastic flat filament weaving, in particular to a user-defined tension cloth rolling machine which comprises a cloth piece and a cloth rolling machine body, the cloth rolling machine body comprises a power roller set, a cloth rolling roller set and a machine frame, the power roller set comprises a driving roller and a driven roller, and the two ends of the driving roller and the two ends of the driven roller are connected with the machine frame through first bearings. The cloth roller set is sequentially provided with a guide roller, a weighing roller and a cloth rolling core pipe located between the driving roller and the driven roller and making contact with the driving roller and the driven roller in the cloth piece moving track direction, and the two ends of the guide roller are connected with the rack through second bearings. One end of the weighing roller is connected with the machine frame through a rolling bearing, the other end of the weighing roller is connected with the machine frame through a weighing assembly, the weighing assembly is electrically connected with the PLC, a self-correcting closed-loop control system is formed through the weighing sensor and the PLC, the tension of a rolled cloth cover is effectively maintained and kept, and the cloth rolling quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic flat yarn weaving, especially to a self-defined tension cloth rolling machine. BACKGROUND

[0002] The working principle of the cloth rolling machine is mainly that the motor drives the cloth rolling shaft to rotate, and at the same time, the cloth rolling shaft is driven to rotate through the cloth pressing mechanism, so that the cloth is compacted and fed into the cloth rolling shaft, and finally a cloth roll is formed. The existing products have higher and higher requirements in terms of cloth surface quality and cloth roll forming. However, the average tensile strength of the cloth surface in the warp direction is insufficient, the average error of the tensile strength of the cloth surface in the weft direction is large, the breakage rate of the cloth roll is high, and the flatness of the cloth surface is poor, which cannot meet the current quality requirements.

[0003] The utility model discloses a tension detection mechanism of unwinding machine, including frame, unwinding roller, guide roller, tension roller and load cell, frame is installed with unwinding roller, guide roller and tension roller from left to right in proper order, the frame includes left support plate and right support plate, the guide roller is fixed on guide roller shaft, the both ends of guide roller shaft are installed on guide roller shaft support respectively, two guide roller shaft supports are fixed on guide roller seat plate respectively, load cell is arranged between guide roller shaft support and guide roller seat plate, load cell is connected with controller electrically, controller is connected with motor electrically, load cell can real -time response tension's change, realize to tension's detection, be favorable to the accurate detection and control of tension, the application provides a tension control scheme different from the above-mentioned disclosure, so as to improve the tensile strength of the cloth surface in the warp direction, reduce the error of the tensile strength of the cloth surface in the weft direction and the breakage rate of the cloth roll. UTILITY MODEL CONTENTS

[0004] Technical purpose: in order to overcome the deficiencies in the prior art, the utility model provides a self-defined tension cloth rolling machine.

[0005] Technical scheme: in order to realize the above-mentioned purpose, the utility model discloses a self-defined tension cloth rolling machine, which comprises a cloth piece and a cloth rolling machine. The cloth rolling machine comprises a power roller group, a cloth rolling roller group and a frame. The power roller group comprises a driving roller and a driven roller connected to the frame through first bearings at both ends. The cloth rolling roller group comprises a guide roller, a weighing roller and a cloth rolling core pipe located between the driving roller and the driven roller and in contact with the driving roller and the driven roller in the running track direction of the cloth piece. The guide roller is connected to the frame through second bearings at both ends. The weighing roller is connected to the frame through a rolling bearing at one end and connected to the frame through a weighing assembly at the other end. The weighing assembly is electrically connected to a PLC controller.

[0006] Preferably, one side of the frame is provided with a deceleration motor, an output shaft of the deceleration motor is connected with a third sprocket, the driving roller and the passive roller are respectively provided with a first sprocket and a second sprocket, and the third sprocket drives the first sprocket and the second sprocket to drive the driving roller and the passive roller to rotate through a chain.

[0007] Preferably, the first sprocket has less teeth than the second sprocket.

[0008] Preferably, a tension sprocket engaged with the chain is further arranged between the first sprocket and the second sprocket, and the tension sprocket is connected with the side wall of the frame and is adjustable in the vertical direction.

[0009] Preferably, the weighing assembly comprises a shaft head, a weighing sensor and a fixing seat, one end of the shaft head is rotatably connected with the weighing roller, the other end of the shaft head is connected with the weighing sensor through a movable angle plate by bolts, and the fixing seat detachably connects the weighing sensor to the frame.

[0010] Preferably, the connecting end of the shaft head and the weighing roller is provided with an extended shaft, the extended shaft is externally sleeved with a third bearing, and the shaft head is rotatably connected with the weighing roller through the third bearing.

[0011] Preferably, the first bearing is a one-way rolling bearing.

[0012] The device has the advantages that:

[0013] The device forms a self-correcting closed-loop control system through the weighing sensor and the PLC controller, effectively maintains and keeps the winding cloth surface tension, ensures the winding cloth quality, and increases the average tensile strength of the cloth surface in the warp direction by about 15% under the condition that the same raw material formula and process parameters are used, reduces the average error of the tensile strength of the cloth surface in the transverse direction from about 12% to about 5%, and reduces the broken package damage rate from 5% to 2%. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the overall structure of the utility model;

[0015] Figure 2 It is a top view of the overall structure of the utility model;

[0016] Figure 3 It is a schematic view of the power roller group in the utility model;

[0017] Figure 4 It is an explosion view of the weighing assembly in the utility model;

[0018] Figure 5 It is an enlarged view of the A area in the utility model. Figure 2 ​

[0019] In the figure, 1, cloth piece; 2, frame; 3, driving roller; 4, passive roller; 5, first bearing; 6, guide roller; 7, weighing roller; 8, cloth winding core pipe; 9, second bearing; 10, cloth winding roller group; 11, power roller group; 12, speed reducer motor; 13, third sprocket; 14, first sprocket; 15, second sprocket; 16, chain; 17, tension sprocket; 18, shaft head; 19, weighing sensor; 20, fixed seat; 21, movable angle plate; 22, lengthened shaft; 23, third bearing; 24, weighing assembly; 25, rolling bearing. DETAILED DESCRIPTION

[0020] The following description will be made in conjunction with the accompanying drawings Figure 1 to the accompanying drawings Figure 5 The principle and characteristics of the utility model are described, and the examples are only used to explain the utility model, and are not used to limit the scope of the utility model.

[0021] A self-defined tension cloth winding machine, as shown in the figure, comprises a cloth piece 1 and a cloth winding machine, and the cloth winding machine comprises a power roller group 11, a cloth winding roller group 10 and a frame 2. Figure 1 — Figure 2 The driving roller 3 and the passive roller 4 are respectively provided with a first sprocket 14 and a second sprocket 15 at the same side end position, the frame 2 is provided with a speed reducer motor 12 at the side close to the first sprocket 14 and the second sprocket 15, the output shaft of the speed reducer motor 12 is connected with a third sprocket 13, and the third sprocket 13 drives the first sprocket 14 and the second sprocket 15 to drive the driving roller 3 and the passive roller 4 to rotate through the chain 16.

[0022] Further, the first bearing 5 is a one-way rolling bearing, and the one-way rolling bearing can only rotate in one direction, so that the cloth piece 1 is prevented from relaxing and losing tension when the cloth winding machine is stopped, and the tension of the cloth piece 1 is stable when the cloth winding machine is stopped.

[0023] Further, as shown in the figure, Figure 3As shown, in order to ensure that the power roller group 11 runs effectively, the chain 16 is engaged with the first sprocket 14, the second sprocket 15 and the third sprocket 13, and to avoid the chain 16 being too loose and causing chain disengagement, a tension sprocket 17 is arranged between the first sprocket 14 and the second sprocket 15 and engaged with the chain 16. The tension sprocket 17 is connected to the side wall of the frame 2 and the vertical position thereof is adjustable. In this embodiment, a central rotating shaft is arranged in the middle of the tension sprocket 17, and the tension sprocket 17 is rotatable relative to the central rotating shaft. The central rotating shaft is connected to the frame 2 by means of bolts. The frame 2 is provided with an elongated circular hole in the vertical direction, and the central rotating shaft can be adjusted in the vertical direction along the elongated circular hole, thereby realizing the tensioning of the chain 16. In order to ensure that the power roller group 11 does not interfere with other components, a guide sprocket can also be added according to the actual position requirements. In this embodiment, a guide sprocket is arranged below the driving roller 3. The running direction of the power roller group 11 is shown by the arrow direction. Figure 3

[0024] The cloth winding roller group 10 is sequentially provided with a guide roller 6, a weighing roller 7 and a cloth winding core tube 8 located between the driving roller 3 and the driven roller 4 and in contact with the driving roller 3 and the driven roller 4 in the running track direction of the cloth piece 1. The running track direction of the cloth piece 1 is shown by the arrow direction. Figure 1 When the driving roller 3 and the driven roller 4 rotate, the cloth winding core tube 8 also rotates under the action of friction due to the contact between the cloth winding core tube 8 and the driving roller 3 and the driven roller 4. The cloth piece 1 is introduced from below the guide roller 6, compacted between the driven roller 4 and the cloth winding core tube 8 above the weighing roller 7, and then the cloth piece 1 enters the gap between the driving roller 3 and the cloth winding core tube 8 to be wound onto the cloth winding core tube 8. The two ends of the guide roller 6 are connected to the frame 2 by means of the second bearing 9. In this embodiment, the position of the guide roller 6 is located above the frame 2, and the weighing roller 7 is located below the guide roller 6. One end of the weighing roller 7 is connected to the frame 2 by means of a rolling bearing 25 allowing small amplitude oscillation, and the other end is connected to the frame 2 by means of a weighing assembly 24. The cloth piece 1 is transferred from the upper main machine to the cloth winding machine according to Figure 1 the running route in sequence through the driven roller 4 and the driving roller 3 to be wound on the cloth winding core tube 8. In this embodiment, the second sprocket 15 and the first sprocket 14 are provided with a difference in the number of teeth, so that the driven roller 4 and the driving roller 3 have different rotational speeds. The driven roller 4 rotates slower than the driving roller 3, i.e. the number of teeth of the first sprocket 14 is less than the number of teeth of the second sprocket 15, so that a difference in surface speed is generated between the two. The cloth piece 1 passing through the driven roller 4 and the driving roller 3 is tensioned to realize the tightening winding of the cloth winding core tube 8. In this embodiment, the number of teeth of the first sprocket 14 on the driving roller 3 is 21 teeth, and the number of teeth of the second sprocket 15 on the driven roller 4 is 22 teeth.

[0025] As shown in the figure, Figure 4 Figure 5 ​​As shown, the weighing assembly 24 includes a shaft head 18, a weighing sensor 19 and a fixing base 20, one end of the shaft head 18 is connected with the weighing roller 7 and is provided with an extended shaft 22, the extended shaft 22 is externally sleeved with a third bearing 23, the shaft head 18 is connected with the weighing roller 7 through the third bearing 23, the weighing roller 7 can rotate relative to the shaft head 18, in this embodiment, the third bearing 23 is a deep groove ball bearing, and a double-row or paired single-row angular contact ball bearing or a self-aligning ball bearing can also be selected.

[0026] The other end of the shaft head 18 is connected with the movable angle plate 21 through bolts, specifically, the movable angle plate 21 is L-shaped, one bent edge of the movable angle plate 21 is connected with the shaft head 18 through bolts, and the other bent edge is connected with the weighing sensor 19 through bolts. The fixing base 20 connects the weighing sensor 19 to the rack 2, and the fixing base 20, the weighing sensor 19 and the rack 2 are all connected through bolts. The weighing assembly 24 is electrically connected with the PLC controller.

[0027] In the working process of the device, the speed reducer motor 12 drives the power roller set 11 to move, and the cloth winding core pipe 8 rotates accordingly. In the process of winding the cloth sheet 1 on the cloth winding core pipe 8, the cloth sheet 1 applies a cloth surface pressure to the weighing roller 7. The weighing roller 7 transmits the cloth surface pressure to the weighing sensor 19 through the third bearing 23 and the shaft head 18. By using the lever principle, the weighing sensor 19 can sense the pressure value formed on one side of the weighing roller 7 by the cloth sheet 1 passing through the weighing roller 7. The pressure value signal is transmitted to the PLC controller (programmable controller) through the amplifier for analysis and comparison with the preset setting value. The PID (proportional-integral-derivative control system) program in the PLC controller analyzes and processes the comparison information, outputs a matching stability control signal, and the frequency conversion controller adjusts the output power of the speed reducer motor 12 according to the stability control signal to drive the power roller set 11 to rotate, thereby driving the cloth winding core pipe 8 to rotate, realizing the adjustment of the cloth winding torque value in the process of winding the cloth sheet 1 on the cloth winding core pipe 8, and controlling the cloth tension within the set value range, so as to ensure that the final formed cloth roll meets the quality and forming requirements. Through testing, under the condition of using the same raw material formula and process parameters, the average tensile strength of the cloth surface of the cloth roll formed by the device is increased by about 15% in the warp direction, the average error of the transverse tensile strength is reduced from about 12% to about 5%, and the breakage rate of the falling package is reduced from 5% to 2%.

[0028] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A custom tension reeling machine comprising a cloth sheet (1) and a reeling machine, characterized in that: The cloth winding machine comprises a power roller set (11), a cloth winding roller set (10) and a frame (2), the power roller set (11) comprises a driving roller (3) and a driven roller (4) connected with the frame (2) through first bearings (5) at two ends, the cloth winding roller set (10) is provided with a guide roller (6), a weighing roller (7) and a cloth winding core tube (8) located between and in contact with the driving roller (3) and the driven roller (4) in the direction of the cloth piece (1) running track, the guide roller (6) is connected with the frame (2) through second bearings (9) at two ends, one end of the weighing roller (7) is connected with the frame (2) through a rolling bearing (25), the other end is connected with the frame (2) through a weighing assembly (24), and the weighing assembly (24) is electrically connected with a PLC controller.

2. The custom tension cloth roller according to claim 1, wherein: One side of the frame (2) is provided with a speed reducer motor (12), the output shaft of the speed reducer motor (12) is connected with a third chain wheel (13), the driving roller (3) and the driven roller (4) are respectively provided with a first chain wheel (14) and a second chain wheel (15), and the third chain wheel (13) drives the first chain wheel (14) and the second chain wheel (15) to drive the driving roller (3) and the driven roller (4) to rotate through a chain (16).

3. The custom tension cloth roller according to claim 2, wherein: The number of teeth of the first chain wheel (14) is less than the number of teeth of the second chain wheel (15).

4. The custom tension cloth fuller of claim 2, wherein: A tensioning chain wheel (17) engaged with the chain (16) is further arranged between the first chain wheel (14) and the second chain wheel (15), and the tensioning chain wheel (17) is connected with the side wall of the frame (2) and can be adjusted in the vertical direction.

5. The custom tension cloth fuller of claim 1, wherein: The weighing assembly (24) comprises a shaft head (18), a weighing sensor (19) and a fixing seat (20), one end of the shaft head (18) is rotatably connected with the weighing roller (7), the other end is connected with the weighing sensor (19) through a movable angle plate (21) through bolts, and the fixing seat (20) detachably connects the weighing sensor (19) to the frame (2).

6. The custom tension cloth fuller of claim 5, wherein: The connecting end of the shaft head (18) and the weighing roller (7) is provided with an extended shaft (22), the extended shaft (22) is externally provided with a third bearing (23), and the shaft head (18) is rotatably connected with the weighing roller (7) through the third bearing (23).

7. The custom tension cloth fuller of claim 1, wherein: The first bearing (5) is a one-way rolling bearing.

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