Full-automatic tension control unwinding device of flow guide cloth splitting machine

Abstract

The utility model discloses a full-automatic tension control unwinding device of a flow guide cloth splitting machine, and belongs to the technical field of flow guide cloth production and processing. A full-automatic tension control unwinding device of a flow guide cloth splitting machine comprises a rack and an unwinding roller, one end of a mandrel of the unwinding roller penetrates through the rack and is connected with an adjusting mechanism, the adjusting mechanism comprises a friction ring fixedly arranged on the mandrel in a sleeving mode and pressing rods symmetrically arranged on the two sides of the friction ring, and one end of each pressing rod is arranged on the friction ring in a pressing mode; an electric push rod is arranged on the rack, and the other end of the pressing rod is connected with the electric push rod through a connecting rod assembly; a detection roller is installed on the machine frame, the two ends of the detection roller are connected with tension sensors, and the detection roller is arranged on the machine frame through the tension sensors. According to the utility model, the aims of detecting the tension on line in the unwinding process of the diversion cloth splitting machine, transmitting the tension information to the controller and controlling the adjusting mechanism by the controller are fulfilled, so that the tension value required by the diversion cloth is fully automatically controlled in the unwinding process.

Description

Technical Field

[0001] The utility model relates to the technical field of guide cloth production and processing, in particular to a full-automatic tension-controlled unwinding device for a guide cloth slitting machine. Background Art

[0002] RO reverse osmosis technology is a type of membrane separation technology. It relies on the reverse osmosis membrane's ability to separate the solvent and solute in the solution under pressure. Reverse osmosis uses sufficient pressure to separate the solvent in the solution through the reverse osmosis membrane, in the opposite direction of osmosis. Reverse osmosis with a pressure greater than the osmotic pressure can be used to separate, purify and concentrate the solution. The guide cloth is the filter material in the inner layer of the RO reverse osmosis membrane. Through layer-by-layer folding, the filtration accuracy of the membrane is compressed, giving it a higher filtration effect and making the filtered water safer to use.

[0003] In the production process of the guide cloth in RO reverse osmosis technology, a slitting machine is required, and the guide cloth can be slit in the slitting machine. In the operation process of the slitting machine, unwinding is an important step. The unwinding device in the slitting machine mainly includes a frame, an unwinding roller and a detection roller, wherein the unwinding roller and the detection roller are both rotatably connected to the frame. When unwinding, the guide cloth is drawn out from the unwinding roller and passes through the detection roller before entering the next process in the slitting machine. Patent document No. 202322276698.7 in the prior art discloses a guide cloth production slitting machine. The tension control is lacking during the unwinding process, and it is difficult to timely feedback the tension signal, which leads to the problem of the guide cloth being too tight or loose during unwinding, affecting the operation of the slitting machine. Summary of the invention

[0004] The utility model aims to solve the problem that the slitting machine in the prior art lacks tension control during unwinding, and it is difficult to timely feedback the tension signal, which leads to the problem that the guide cloth is too tight or loose during unwinding, and proposes a fully automatic tension control unwinding device for the guide cloth slitting machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fully automatic tension-controlled unwinding device for a guide cloth slitting machine comprises a frame and an unwinding roller connected to the frame through a core shaft for horizontal rotation, one end of the core shaft of the unwinding roller passes through the frame and is connected to an adjustment mechanism, the adjustment mechanism comprises a friction ring fixedly sleeved on the core shaft and pressure rods symmetrically arranged on both sides of the friction ring, one end of the pressure rod is pressed on the friction ring; an electric push rod is arranged on the frame, and the other end of the pressure rod is connected to the electric push rod through a connecting rod assembly; a detection roller is installed on the frame, both ends of the detection roller are connected to tension sensors, the detection roller is arranged on the frame through the tension sensor, and the extension or shortening of the electric push rod is controlled by the signal fed back by the tension sensor.

[0007] In some embodiments, the adjustment mechanism is connected to the frame through a support plate, and two brackets are arranged on the support plate. The bracket is in an inverted T shape, including a vertical part and a horizontal part located at the lower end of the vertical part; the core shaft passes through the two brackets, and the friction ring is located between the two brackets.

[0008] In some embodiments, one end of the connecting rod assembly is connected to the pressure rod, and the other end of the connecting rod assembly is connected to the mounting plate. The connecting rod assembly includes a lower connecting rod and an upper connecting rod hinged at one end, and the other end of the lower connecting rod is hinged to the cross portion; the lower connecting rod is provided with two and symmetrically distributed on both sides of the friction ring, and the other end of each of the upper connecting rods is hinged to the mounting plate together, and the lower end of the telescopic rod of the electric push rod is connected to the mounting plate by a thread. Through the above-mentioned setting mechanism, when the lower connecting rod rotates, the pressure condition of the pressure rod on the friction ring is changed, thereby changing the friction force between the friction ring and the friction plate.

[0009] In some embodiments, the pressure rod is hinged at one end of the lower connecting rod close to the horizontal portion, and an arc groove is provided at one end of the pressure rod close to the friction ring. A friction plate is provided in the arc groove, and the friction plate contacts the outer ring surface of the friction ring, so that friction force is generated between the friction ring and the friction plate.

[0010] In some embodiments, the signal output end of the tension sensor is connected to a controller, the controller is mounted on a frame, the control end of the electric controller is electrically connected to the electric push rod, and the tension sensor transmits a tension signal to the controller.

[0011] In some embodiments, the detection roller is parallel to the unwinding roller, and the core shaft of the unwinding roller is connected to the friction ring via a flat key.

[0012] In some embodiments, a cover plate is provided on the frame, the adjustment mechanism is located inside the cover plate, and the telescopic rod of the electric push rod passes through the cover plate.

[0013] Compared with the prior art, the utility model provides a fully automatic tension-controlled unwinding device for a guide cloth slitting machine, which has the following beneficial effects.

[0014] The utility model collects the tension signal of the detection roller through the arranged tension sensor, transmits it to the controller, and drives the electric push rod through the controller. When the tension value of the detection roller is greater than the set value in the controller, the controller controls the electric push rod to extend, and the two upper connecting rods move away from each other, thereby driving the pressure rod through the lower connecting rod. At this time, the pressure of the pressure rod on the friction ring is reduced to increase the unwinding speed of the winding roller. On the contrary, when the tension value of the detection roller is less than the set value in the controller, the controller controls the electric push rod to shorten to reduce the unwinding speed of the winding roller. Therefore, the utility model achieves the purpose of online tension detection during the unwinding process of the guide cloth slitting machine, and transmits the tension information to the controller, and the controller controls the adjustment mechanism, thereby realizing fully automatic control of the tension value required for the guide cloth during the unwinding process.

[0015] The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. The utility model transmits the tension information of the guide cloth to the controller, and the controller controls the adjustment mechanism, thereby solving the problem of lack of tension control in the unwinding process of the guide cloth slitting machine in the prior art, and it is difficult to feedback the tension signal in time, which leads to the guide cloth being too tight or loose during unwinding.

[0016] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereogram of the utility model.

[0018] Figure 2 It is a schematic diagram of the adjustment mechanism in the utility model

[0019] Figure 3 It is a connection schematic diagram of the lower connecting rod and the pressure rod in the utility model.

[0020] Figure 4 It is a schematic diagram of the intermediate pressure rod, friction plate and friction ring of the utility model.

[0021] Figure 5 It is a schematic diagram of winding of the guide cloth in the utility model.

[0022] The reference numerals in the accompanying drawings are:

[0023] 1. Frame; 2. Mandrel; 3. Unwinding roller; 4. Friction ring; 5. Pressure rod; 6. Electric push rod; 7. Detection roller; 8. Tension sensor; 9. Support plate; 10. Bracket; 101. Vertical part; 102. Horizontal part; 11. Mounting plate; 12. Lower connecting rod; 13. Upper connecting rod; 14. Friction plate; 15. Controller; 16. Cover plate; 17. Guide roller. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-Figure 5 A fully automatic tension-controlled unwinding device for a guide cloth slitting machine comprises a frame 1 and an unwinding roller 3 connected to the frame 1 through a core shaft 2 for horizontal rotation, one end of the core shaft 2 of the unwinding roller 3 passes through the frame 1 and is connected with an adjusting mechanism, the adjusting mechanism comprises a friction ring 4 fixedly sleeved on the core shaft 2 and a pressure rod 5 symmetrically arranged on both sides of the friction ring 4, one end of the pressure rod 5 is pressed on the friction ring 4; an electric push rod 6 is arranged on the frame 1, and the other end of the pressure rod 5 is connected to the electric push rod 6 through a connecting rod assembly; a detection roller 7 is installed on the frame 1, and tension sensors 8 are connected to both ends of the detection roller 7. The detection roller 7 is arranged on the frame 1 through the tension sensor 8, and the electric push rod 6 is controlled to extend or shorten by the signal fed back by the tension sensor 8.

[0026] Please refer again Figure 2 The adjustment mechanism is connected to the frame 1 through a support plate 9, and two brackets 10 are arranged on the support plate 9. The bracket 10 is in an inverted T shape, including a vertical portion 101 and a horizontal portion 102 located at the lower end of the vertical portion 101; the core shaft 2 passes through the two brackets 10, and the friction ring 4 is located between the two brackets 10.

[0027] Specifically, one end of the connecting rod assembly is connected to the pressure rod 5, and the other end of the connecting rod assembly is connected to the mounting plate 11. The connecting rod assembly includes a lower connecting rod 12 and an upper connecting rod 13 hinged at one end, and the other end of the lower connecting rod 12 is hinged to the cross portion 102; the lower connecting rod 12 is provided in two and symmetrically distributed on both sides of the friction ring 4, and the other end of each of the upper connecting rods 13 is hinged on the mounting plate 11 together, and the lower end of the telescopic rod of the electric push rod 6 is connected to the mounting plate 11 by a thread. Through the above-mentioned setting mechanism, when the lower connecting rod 12 rotates, the pressure condition of the pressure rod 5 on the friction ring 4 is changed, thereby changing the friction between the friction ring 4 and the friction plate 14.

[0028] In this embodiment, the pressure rod 5 is hinged at one end of the lower connecting rod 12 close to the horizontal portion 102, and an arc groove is provided at one end of the pressure rod 5 close to the friction ring 4. A friction plate 14 is provided in the arc groove, and the friction plate 14 contacts the outer ring surface of the friction ring 4, so that friction ring 4 and friction plate 14 generate friction force.

[0029] Please refer again Figure 1 The signal output end of the tension sensor 8 is connected to a controller 15 , and the controller 15 is mounted on the frame 1 . The control end of the electric controller 15 is electrically connected to the electric push rod 6 , and the tension sensor 8 transmits a tension signal to the controller 15 .

[0030] In this embodiment, the detection roller 7 is parallel to the unwinding roller 3, and the core shaft 2 of the unwinding roller 3 is connected to the friction ring 4 via a flat key.

[0031] In addition, a cover plate 16 is provided on the frame 1 , the adjustment mechanism is located inside the cover plate 16 , and the telescopic rod of the electric push rod 6 passes through the cover plate 16 .

[0032] The applicant would like to explain that please refer to Figure 5 In order to cooperate with the tension sensor 8, guide rollers 17 are also arranged on both sides of the detection roller 7 in this example. The two guide rollers 17 are located above the detection roller 7. The guide cloth is pulled out from the unwinding roller 3, and then passes through one of the guide rollers 17, the detection roller 7 and the other guide roller 17 in sequence; in actual application, the tension sensor 8 uses the CTS series through-axis tension sensor produced by Shenzhen Yatek Electronics Co., Ltd.

[0033] The working principle of the utility model is as follows:

[0034] During operation, the guide cloth is pulled out from the unwinding roller 3, and then passes through one of the guide rollers 17, the detection roller 7 and the other guide roller 17 in sequence before entering the next process in the slitting machine. The tension signal of the detection roller 7 is collected by the tension sensor 8 and transmitted to the controller 15. The electric push rod 6 is driven by the controller 15. On the one hand, when the tension value of the detection roller 7 is greater than the set value in the controller 15, the controller 15 controls the electric push rod 6 to extend, and the two upper connecting rods 13 move away from each other, thereby driving the pressure rod 5 through the lower connecting rod 12. At this time, the pressure of the pressure rod 5 on the friction ring 4 is reduced to increase the unwinding speed of the winding roller to avoid the unwinding speed being too slow and causing the guide cloth to be too tight. On the other hand, when the tension value of the detection roller 7 is less than the set value in the controller 15, the controller 15 controls the electric push rod 6 to shorten, and the two upper connecting rods 13 move closer to each other, thereby driving the pressure rod 5 through the lower connecting rod 12. At this time, the pressure of the pressure rod 5 on the friction ring 4 is increased to reduce the unwinding speed of the winding roller to avoid the unwinding speed being too fast and causing the guide cloth to be loose.

[0035] In summary, the utility model achieves the purpose of online tension detection during the unwinding process of the guide cloth slitting machine, and transmits the tension information to the controller 15, and the controller 15 controls the adjustment mechanism, thereby realizing fully automatic control of the tension value required for the guide cloth during the unwinding process, thereby solving the problem of lack of tension control during the unwinding process of the guide cloth slitting machine in the prior art, and difficulty in timely feedback of the tension signal, which leads to the problem of the guide cloth being too tight or loose during unwinding.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0038] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A fully automatic tension-controlled unwinding device for a guide fabric slitting machine, comprising a frame (1) and an unwinding roller (3) connected to the frame (1) by a core shaft (2) for horizontal rotation, characterized in that: One end of the mandrel (2) of the unwinding roller (3) passes through the frame (1) and is connected to an adjustment mechanism, the adjustment mechanism comprising a friction ring (4) fixedly sleeved on the mandrel (2) and pressure rods (5) symmetrically arranged on both sides of the friction ring (4), one end of the pressure rod (5) being pressed on the friction ring (4); An electric push rod (6) is arranged on the frame (1), and the other end of the pressure rod (5) is connected to the electric push rod (6) via a connecting rod assembly; A detection roller (7) is mounted on the frame (1), and tension sensors (8) are connected to both ends of the detection roller (7). The detection roller (7) is arranged on the frame (1) via the tension sensor (8).

2. The fully automatic tension-controlled unwinding device for a guide fabric slitting machine according to claim 1, characterized in that: The adjustment mechanism is connected to the frame (1) via a support plate (9); two brackets (10) are arranged on the support plate (9); the bracket (10) is in an inverted T shape and comprises a vertical portion (101) and a horizontal portion (102) located at the lower end of the vertical portion (101); the core shaft (2) passes through the two brackets (10); and the friction ring (4) is located between the two brackets (10).

3. The fully automatic tension-controlled unwinding device for a guide fabric slitting machine according to claim 2 is characterized in that: One end of the connecting rod assembly is connected to the pressure rod (5), and the other end of the connecting rod assembly is connected to the mounting plate (11). The connecting rod assembly comprises a lower connecting rod (12) and an upper connecting rod (13) which are hinged at one end. The other end of the lower connecting rod (12) is hinged to the cross portion (102). The lower connecting rod (12) is provided in two and symmetrically distributed on both sides of the friction ring (4). The other end of each upper connecting rod (13) is hinged to the mounting plate (11). The lower end of the telescopic rod of the electric push rod (6) is connected to the mounting plate (11) by means of a thread.

4. The fully automatic tension-controlled unwinding device for a guide fabric slitting machine according to claim 3 is characterized in that: The pressure rod (5) is hinged to one end of the lower connecting rod (12) close to the transverse portion (102), and an arc groove is formed at one end of the pressure rod (5) close to the friction ring (4). A friction plate (14) is arranged in the arc groove, and the friction plate (14) contacts the outer ring surface of the friction ring (4).

5. The fully automatic tension-controlled unwinding device for a guide fabric slitting machine according to claim 1, characterized in that: The signal output end of the tension sensor (8) is connected to a controller (15), the controller (15) is mounted on the frame (1), and the control end of the controller (15) is electrically connected to the electric push rod (6).

6. The fully automatic tension-controlled unwinding device for a guide fabric slitting machine according to claim 1, characterized in that: The detection roller (7) is parallel to the unwinding roller (3), and the core shaft (2) of the unwinding roller (3) is connected to the friction ring (4) via a flat key.

7. The fully automatic tension-controlled unwinding device for a guide fabric slitting machine according to claim 1, characterized in that: A cover plate (16) is provided on the frame (1), the adjustment mechanism is located inside the cover plate (16), and the telescopic rod of the electric push rod (6) passes through the cover plate (16).

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