Tension regulator

Abstract

The utility model discloses a tension regulator which comprises bases, a tension frame fulcrum and a tension frame, the two bases are symmetrically arranged, the tension frame fulcrum is installed on the two bases, one end of the tension frame is connected to the tension frame fulcrum in a rotating mode, a belt pressing roller is installed at the other end of the tension frame, the tension frame is installed in an inclined mode, and the belt pressing roller is arranged at the high point of the tension frame. The belt pressing roller is pressed on the belt surface of the transmission passing belt, the base is provided with the balance weight mechanism, the balance weight mechanism is in transmission connection with the tension frame, the tension frame forms pressing and covering type tension on the rubber belt in the mode that the tension frame naturally overturns and droops, the gravity of the balance weight mechanism on the tension frame is designed, the tension can be adjusted only by increasing or decreasing balance weight, and the belt pressing roller and the balance weight mechanism are arranged on the base. The tension adjusting device has the advantage of simple and convenient tension adjusting operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial belt production equipment technical field more specifically, it relates to a tension regulator. BACKGROUND

[0002] The main raw material of industrial belt production is natural or synthetic rubber, the rubber first needs to make into rubber belt, then the rubber belt is wrapped with other materials to form industrial belt product. The rubber belt is in continuous band shape after production, so it is called rubber belt. In order to facilitate the storage of rubber belt, the rubber belt needs to be coiled into a roll. The rubber belt needs to form tension in the continuous transmission and winding process, so that the rubber belt can be smoothly transmitted, and the formed rubber belt roll is relatively compact. Different thicknesses of rubber belts are used in belt production, so the transmission rubber belt needs to adjust the tension to adapt to production. Otherwise, if the tension is too small, the tensioning condition is not good, and if the tension is too large, the rubber belt will be broken. In view of the production demand, the enterprise needs to design a tension adjusting device convenient to operate to meet the production demand, and the case is thus generated. SUMMARY

[0003] The utility model discloses a tension regulator, the tension frame of the utility model forms the pressure and covers the tension of rubber belt with natural overturning and drooping, the gravity of the tension frame is counteracted by designing the counterweight mechanism, the utility model just can adjust the tension by increasing or decreasing the counterweight, and the utility model has the advantages of simple and convenient tension adjusting operation.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A tension regulator, comprising a base, a tension frame fulcrum and a tension frame, two bases are symmetrically arranged, the tension frame fulcrum is installed on the two bases, one end of the tension frame is rotatably connected to the tension frame fulcrum, the other end of the tension frame is provided with a belt pressing roller, the tension frame is obliquely installed, the belt pressing roller is arranged at the high point of the tension frame, the belt pressing roller is pressed on the belt surface of the transmission rubber belt, the base is provided with a counterweight mechanism, and the counterweight mechanism is in transmission connection with the tension frame.

[0006] Further, the tension frame fulcrum comprises a bearing seat and a fulcrum shaft, two bearing seats are fixedly installed on the two bases respectively, the two bearing seats are symmetrically arranged, the two ends of the fulcrum shaft are rotatably connected to the two bearing seats respectively, and the low point of the tension frame is connected to the fulcrum shaft.

[0007] Further, the tension frame comprises two parallel arranged rotating arms, one end of the two rotating arms is fixedly connected to the outer wall of the fulcrum shaft, and the belt pressing roller is rotatably connected to the other end of the two rotating arms.

[0008] Further, the number of the counterweight mechanisms is two, the two counterweight mechanisms are symmetrically installed, and the two counterweight mechanisms correspond to the two rotating arms respectively.

[0009] Further, the counterweight mechanism comprises a stand, a pulley, a rope and a counterweight, the stand is vertically fixed on the base, the pulley is installed on the stand, the rope is hung on the pulley, one end of the rope is lowered and connected to the rotating arm, the other end of the rope is lowered and connected to the tray, and the counterweight is placed on the tray.

[0010] Further, one of the bases is provided with a deviation detection element.

[0011] Further, the deviation detection element comprises a switch support and a control switch, the switch support is vertically fixed on the base, and the control switch is installed on the switch support and arranged along the upward turning movement path of the rotating arm.

[0012] Further, the control switch is a proximity switch, and a gap exists between the control switch and the rotating arm.

[0013] The utility model discloses the beneficial effects are:

[0014] 1. The tension frame of the utility model forms the pressure type tension of adhesive tape by natural overturning and drooping, the utility model designs counterweight mechanism, forms the lifting of tension frame through the pulling effect of counterweight, can counteract the gravity of tension frame, just realizes the adjustment of tension through the increase and decrease of counterweight, and the utility model has the advantages of simple and convenient tension adjustment operation.

[0015] 2. The utility model still is provided with deviation detection element, can find the problem that the accumulated deviation of transmission adhesive tape on both sides of tension adjustment area is too large in time, so that the orderly transmission of adhesive tape can be stably controlled. DRAWINGS

[0016] Figure 1 It is a structure schematic view of the tension adjuster in the embodiment applied to the adhesive tape transmission system.

[0017] Figure 2 It is a top view of the tension adjuster in the embodiment.

[0018] Figure 3 It is the A-A section view of the tension adjuster in the embodiment. Figure 2

[0019] ​Reference numerals in the attached drawings: base 1, tension frame fulcrum 2, bearing seat 21, fulcrum shaft 22, tension frame 3, pressure roller 31, rotating arm 32, counterweight mechanism 4, upright frame 41, pulley 42, rope 43, tray 44, counterweight block 45, deviation detection element 5, switch bracket 51, control switch 52, first conveyor roller 61, second conveyor roller 62. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-3 The tension regulator shown includes a base 1, a tension frame fulcrum 2, and a tension frame 3. The two bases 1 are symmetrically arranged, and the tension frame fulcrum 2 is mounted on both bases 1. One end of the tension frame 3 is rotatably connected to the tension frame fulcrum 2, and the other end of the tension frame 3 is equipped with a pressure roller 31. The tension frame 3 can rotate about the tension frame fulcrum 2 as an axis. Figure 1 As shown, the tension frame 3 is used in a belt drive system. The tension frame 3 is installed at an angle, and the pressure roller 31 is located at the high point of the tension frame 3. The end of the pressure roller 31 hangs down naturally, so that the pressure roller 31 presses against the surface of the belt that is being driven through. The pressure roller 31 can then create tension on the belt that is being driven through. This tension is formed by the natural weight of the pressure roller 31. In order to make the tension adjustable, a counterweight mechanism 4 is installed on the base 1. The counterweight mechanism 4 is connected to the tension frame 3. The counterweight mechanism 4 can counteract the downward weight of the tension frame 3 to achieve the tension adjustment effect. This invention is currently used in belt drive production to meet the tension requirements of belt drive. This invention can also be applied to the tension requirements of other continuous materials, such as fabrics.

[0022] like Figure 2 As shown, the tension frame fulcrum 2 includes a bearing seat 21 and a fulcrum shaft 22. The two bearing seats 21 are fixedly installed on the two bases 1 respectively. The two bearing seats 21 are symmetrically arranged. The two ends of the fulcrum shaft 22 are rotatably connected to the two bearing seats 21 respectively. The bearing seats 21 play the role of mounting and supporting the fulcrum shaft 22. The fulcrum shaft 22 can rotate freely. The lowest point of the tension frame 3 is connected to the fulcrum shaft 22, so the tension frame 3 can realize the flipping motion with the fulcrum shaft 22 as the axis.

[0023] like Figure 2As shown, the tension frame 3 comprises two parallelly arranged swing arms 32, one end of each of the two swing arms 32 is fixedly connected to the outer wall of the fulcrum shaft 22, the distance between the two swing arms 32 is greater than the width of the belt, and the belt can smoothly flow through between the two swing arms 32, as shown. Figure 1 As shown, the belt passes below the belt pressing roller 31, so that after the tension frame 3 sags, the belt surface is just pressed by the belt pressing roller 31 to form a tensioning effect, and the belt pressing roller 31 is rotationally connected to the other end of the two swing arms 32, so that the belt pressing roller 31 can meet the tensioning requirement without affecting the normal transmission of the belt (without causing a large passing resistance).

[0024] As shown, Figure 2 As shown, the counterweight mechanism 4 is two in number and symmetrically installed, and the two counterweight mechanisms 4 are arranged corresponding to the two swing arms 32, respectively, and the two counterweight mechanisms 4 need to act on the two swing arms 32 to form force adjustment of the whole tension frame 3, as shown. Figure 3 As shown, the counterweight mechanism 4 comprises a stand 41, a pulley 42, a rope belt 43 and a counterweight block 45, the stand 41 is vertically fixed on the base 1, the pulley 42 is installed on the stand 41, the rope belt 43 is hung on the pulley 42, the pulley 42 is fixedly installed to meet the installation requirement of the rope belt 43, the pulley 42 is provided with a groove, and the rope belt 43 is hung in the groove to prevent the rope belt 43 from escaping, one end of the rope belt 43 is sagged and connected to the swing arm 32, the other end of the rope belt 43 is sagged and connected with a tray 44, and the counterweight block 45 is placed on the tray 44. Under the action of the counterweight at this end of the tray 44, the other end of the rope belt 43 will have a force to pull the swing arm 32 to turn upward, which will counteract the sagging gravity of the tension frame 3 itself, so that the compression type tension formed thereby is smaller (the tension generated by the sagging gravity of the tension frame 3 itself is larger, which is easy to cause the rupture of the belt), and the weight of the counterweight block 45 on the tray 44 can be increased or decreased to adjust the tension, the heavier the weight of the counterweight block 45, the greater the counteracting force, and the smaller the tension formed, and vice versa. Workers can only select appropriate counterweight blocks 45 when adjusting the tension, which is simple and convenient (for the same type of belt, the tension needs to be adjusted only once before the shift).

[0025] In the belt transmission system, a large number of belt transmission rollers are used to drive the belt to move, and in the ideal state, the rotation speed of all the belt transmission rollers is consistent, but in reality, the speed cannot be consistent, as shown. Figure 1As shown, the first transmission roller 61 and the second transmission roller 62 of the adhesive tape transmission system are respectively arranged on the left and right sides of the compression roller 31, the tension area where the compression roller 31 is located is on the winding side on the left side of the tension area, the tension area where the compression roller 31 is located is on the feeding side on the right side of the tension area, and the tension area where the compression roller 31 is located is just concave between the first transmission roller 61 and the second transmission roller 62 to form an adhesive tape stock area. In order to ensure the smooth transmission of the adhesive tape, the winding side speed is slightly greater than the feeding side speed, and therefore the rotation speed of the first transmission roller 61 is slightly greater than the rotation speed of the second transmission roller 62. After a long time of operation, a large cumulative driving deviation is formed. Under the cumulative deviation, the tension of the adhesive tape in the transmission is getting larger and larger, and there is a risk of tearing the adhesive tape. Therefore, as shown in the figure, Figure 1 and Figure 2 As shown, the utility model discloses a deviation detection element 5 is installed on one of the bases 1, and the problem that the cumulative deviation of the adhesive tape is too large can be found in time. The tension area formed by the tension frame 3 is just concave between the first transmission roller 61 and the second transmission roller 62, and the adhesive tape stock is here. The speed deviation of the first transmission roller 61 and the second transmission roller 62 will first be reflected in the consumption of the adhesive tape stock after a long time. The consumption of the adhesive tape stock will be reflected on the tension frame 3, and therefore it is feasible to find that the cumulative deviation of the adhesive tape is too large through the tension frame 3. In the case that the speed of the first transmission roller 61 is fast and the speed of the second transmission roller 62 is slow, the adhesive tape stock in the concave position will be gradually consumed, which will make the adhesive tape in the concave position of the tension area be gradually pulled up. In this process, the tension frame 3 as a whole will be lifted up, as shown in the figure, Figure 3 As shown, the deviation detection element 5 of the utility model comprises a switch bracket 51 and a control switch 52. The switch bracket 51 is vertically fixed on the base 1, and the control switch 52 is installed on the switch bracket 51. The control switch 52 is arranged corresponding to the upward turning movement path of the turning arm 32. The control switch 52 is a proximity switch, which is an inductive sensor. There is a gap between the control switch 52 and the turning arm 32, so as not to interfere with the movement of the turning arm 32. In the normal state, the control switch 52 is arranged above the turning arm 32, and it cannot sense the turning arm 32. After a long time of existence of the speed difference of the adhesive tape, the adhesive tape in the concave position is gradually pulled up. In this process, the tension frame 3 as a whole will be lifted up. The lifting of the tension frame 3 causes the turning arm 32 to turn upward. After the turning arm 32 turns upward, it will gradually approach the sensing surface of the control switch 52, until the sensing surface is completely opposite to form a sensing signal. After the control switch 52 is triggered by the sensing signal, it represents that the deviation formed by the speed difference of the adhesive tape is already relatively large, and there is a risk of tearing the adhesive tape. At this time, the rotation speed of the side (feeding side) of the second transmission roller 62 can be controlled to be increased for a period of time, so as to pull up the error. Through the deviation detection element 5, the problem that the cumulative deviation of the adhesive tape is too large can be found in time, which plays a positive role in the stable control of the orderly transmission of the adhesive tape.

[0026] The above merely is preferred implementation manner of the present application, the protection scope of the present application is not only limited to the above examples, and belongs to the technical scheme under the idea of the present application all belongs to the protection scope of the present application. It should be pointed out that, for ordinary skilled person in the art, under the premise of not departing from the principle of the present application, some improvements and decorations, these improvements and decorations should also be considered as the protection scope of the present application.

Claims

1. A tension regulator, characterized by, The device comprises a base (1), a tension frame fulcrum (2) and a tension frame (3), two of the base (1) are symmetrically arranged, the tension frame fulcrum (2) is installed on the two bases (1), one end of the tension frame (3) is rotatably connected to the tension frame fulcrum (2), the other end of the tension frame (3) is provided with a pressing roller (31), the tension frame (3) is obliquely installed, the pressing roller (31) is arranged at the high point of the tension frame (3), the pressing roller (31) is pressed on the belt surface of the driven rubber belt, the base (1) is provided with a counterweight mechanism (4), and the counterweight mechanism (4) is in transmission connection with the tension frame (3).

2. The tension regulator of claim 1, wherein The tension frame fulcrum (2) comprises a bearing seat (21) and a fulcrum shaft (22), two of the bearing seat (21) are respectively fixedly installed on the two bases (1), two of the bearing seat (21) are symmetrically arranged, and the two ends of the fulcrum shaft (22) are respectively rotatably connected to the two bearing seats (21), and the low point of the tension frame (3) is connected to the fulcrum shaft (22).

3. A tension regulator according to claim 2, wherein The tension frame (3) comprises two parallel arranged rotating arms (32), one end of the two rotating arms (32) is fixedly connected to the outer wall of the fulcrum shaft (22), and the other end of the two rotating arms (32) is rotatably connected to the pressing roller (31).

4. The tension regulator of claim 3, wherein, The number of the counterweight mechanism (4) is two, two of the counterweight mechanism (4) are symmetrically arranged, and two of the counterweight mechanism (4) are respectively arranged corresponding to the two rotating arms (32).

5. The tension regulator of claim 4, wherein, The counterweight mechanism (4) comprises a stand (41), a pulley (42), a rope belt (43) and a counterweight block (45), the stand (41) is vertically fixed on the base (1), the pulley (42) is installed on the stand (41), the rope belt (43) is hung on the pulley (42), one end of the rope belt (43) is hung and connected to the rotating arm (32), the other end of the rope belt (43) is hung and connected with a tray (44), and the counterweight block (45) is placed in the tray (44).

6. The tension regulator of claim 3, wherein, One of the base (1) is provided with a deviation detection element (5).

7. A tension regulator according to claim 6, wherein The deviation detection element (5) comprises a switch bracket (51) and a control switch (52), the switch bracket (51) is vertically fixed on the base (1), the control switch (52) is installed on the switch bracket (51), and the control switch (52) is arranged corresponding to the upward turning movement path of the rotating arm (32).

8. The tension regulator of claim 7, wherein, The control switch (52) is a proximity switch, and there is a gap between the control switch (52) and the rotating arm (32).

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