CN218174039U - Constant tension unwinding device - Google Patents
Constant tension unwinding device Download PDFInfo
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- CN218174039U CN218174039U CN202222192106.9U CN202222192106U CN218174039U CN 218174039 U CN218174039 U CN 218174039U CN 202222192106 U CN202222192106 U CN 202222192106U CN 218174039 U CN218174039 U CN 218174039U
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- frame
- rack
- pressure sensor
- shaft
- magnetic powder
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Abstract
The utility model discloses a permanent tension unwinding device, which comprises a frame, be equipped with motor control's conveying roller in the frame, install pressure sensor in the frame, install the pressure detection roller on pressure sensor's the foil gage, be equipped with the fast mechanism of accuse in the frame, the fast mechanism of accuse include with frame fixed connection's magnetic brake, it is equipped with detachable inflatable shaft to rotate in the frame, magnetic brake control inflatable shaft rotates, pressure sensor with magnetic brake telecommunications connection. Through set up pressure sensor and pressure detection roller between conveying roller and inflatable shaft, can detect its tension this moment through pressure sensor when the pressure detection roller passes through polytetrafluoroethylene film, and the inside magnetic powder of magnetic powder brake is controlled by the pressure that pressure sensor detected, and pressure sensor passes through the slew velocity of magnetic powder brake and first gear control inflatable shaft for can realize that constant tension unreels.
Description
Technical Field
The utility model relates to an unwinding device technical field, in particular to permanent tension unwinding device.
Background
In polytetrafluoroethylene film stretching equipment, in order to guarantee the follow-up tensile normal operation of equipment, need guarantee the constant tension that unreels of polytetrafluoroethylene film, if the tension fluctuation is great, can lead to polytetrafluoroethylene film stretch multiple to change in the equipment, very influence the work efficiency and the tensile precision of equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a permanent tension unwinding device to overcome not enough among the prior art.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model discloses a permanent tension unwinding device, which comprises a frame, be equipped with motor control's conveying roller in the frame, install pressure sensor in the frame, install the pressure detection roller on pressure sensor's the foil gage, be equipped with the fast mechanism of accuse in the frame, the fast mechanism of accuse include with frame fixed connection's magnetic brake, it is equipped with detachable inflatable shaft to rotate in the frame, magnetic brake control inflatable shaft rotates, pressure sensor with magnetic brake telecommunications connection.
Optionally, two pairs of ball bearings are arranged on the frame, the air expansion shaft is erected between the two pairs of ball bearings, and the ball bearings are mounted on a bearing frame fixedly connected with the frame.
Optionally, the magnetic powder brake is fixedly connected with the rack through a mounting frame, a first gear is fixedly arranged on a control shaft of the magnetic powder brake, a second gear is fixedly connected to one end of the air expansion shaft, and the second gear is meshed with the first gear.
Optionally, a support frame is fixedly arranged on the frame, a driving motor is fixedly mounted on the support frame, the driving motor controls the conveying roller to rotate, a cylinder is fixedly arranged at the top of the support frame, a telescopic shaft of the cylinder is arranged on one side close to the conveying roller, and a compression roller is rotatably arranged on the telescopic shaft of the cylinder.
Optionally, a plurality of transition rollers are arranged on the frame, a distance sensor is arranged between one of the transition rollers and the pressure detection roller, and the distance sensor is fixedly connected to the frame. The distance sensor is used for detecting whether the polytetrafluoroethylene film on the air expansion shaft is completely unreeled or not, and the unreeling is interrupted so that the equipment needs to be reconnected.
Optionally, a connecting frame is fixedly connected to the frame, an auxiliary support is fixedly mounted on the connecting frame, and a felt sheet is fixedly arranged in a semicircular groove of the auxiliary support. When the polytetrafluoroethylene film on the air expansion shaft is about to be unreeled, the polytetrafluoroethylene film can be transferred to the auxiliary supports, the circular shafts at the two ends of the air expansion shaft are erected on the two auxiliary supports, and the felt sheets in the auxiliary supports play a role in increasing friction.
The utility model has the advantages that: the utility model relates to a permanent tension unwinding device, through set up pressure sensor and pressure detection roller between conveying roller and inflatable shaft, can detect its tension this moment through pressure sensor during the polytetrafluoroethylene film of pressure detection roller transition, pressure sensor gives the magnetic brake that inflatable shaft transmission is connected with tension signal transmission, the inside magnetic of magnetic brake is by the pressure control that pressure sensor detected, the moment of torsion of pressure sensor control magnetic brake transmission promptly, pressure sensor passes through the slew velocity of magnetic brake and first gear control inflatable shaft, the unwinding speed of control inflatable shaft promptly, make and realize that permanent tension unreels, the normal function of the tensile process of follow-up polytetrafluoroethylene film has been guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of the speed control mechanism and the air expansion shaft of the present invention;
FIG. 3 is a schematic top view of the speed control mechanism and the air expansion shaft of the present invention;
fig. 4 is a schematic structural diagram of the conveying roller and the pressing roller of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-4, the embodiment of the utility model provides a constant tension unwinding device, which comprises a frame 11, be equipped with motor control's conveying roller 19 in the frame 11, install pressure sensor 16 in the frame 11, install pressure detection roller 17 on pressure sensor 16's the foil gage, be equipped with the fast mechanism 30 of accuse in the frame 11, the fast mechanism 30 of accuse include with frame 11 fixed connection's magnetic powder brake 31, it is equipped with detachable inflatable shaft 13 to rotate on the frame 11, magnetic powder brake 31 control inflatable shaft 13 rotates, pressure sensor 16 with magnetic powder brake 31 telecommunications connection.
Two pairs of ball bearings 15 are arranged on the frame 11, the air expansion shaft 13 is erected between the two pairs of ball bearings 15, and the ball bearings 15 are arranged on a bearing frame 14 fixedly connected with the frame 11.
The magnetic powder brake 31 is fixedly connected with the rack 11 through an installation rack 12, a first gear 32 is fixedly arranged on a control shaft of the magnetic powder brake 31, a second gear 33 is fixedly connected with one end of the air expansion shaft 13, and the second gear 33 is meshed with the first gear 32.
The fixed support frame 18 that is equipped with in frame 11, fixed mounting has driving motor 26 on the support frame 18, driving motor 26 control conveying roller 19 rotates, the fixed cylinder 20 that is equipped with in support frame 18 top, the telescopic shaft of cylinder 20 set up in being close to conveying roller 19 one side, it is equipped with compressing roller 21 to rotate on the telescopic shaft of cylinder 20.
A plurality of transition rollers 22 are arranged on the frame 11, a distance sensor 23 is arranged between one of the transition rollers 22 and the pressure detection roller 17, and the distance sensor 23 is fixedly connected to the frame 11. The distance sensor 23 is used for detecting whether the teflon film on the inflatable shaft 13 is completely unreeled, and the unreeling is interrupted so that the device needs to be reconnected.
The frame 11 is fixedly connected with a connecting frame 24, an auxiliary support 25 is fixedly mounted on the connecting frame 24, and a felt sheet 27 is fixedly arranged in a semicircular groove of the auxiliary support 25. When the polytetrafluoroethylene film on the inflatable shaft 13 is about to be unreeled, the polytetrafluoroethylene film can be transferred to the auxiliary supports 25, the circular shafts at the two ends of the inflatable shaft 13 are erected on the two auxiliary supports 25, and the felt sheets 27 in the auxiliary supports 25 play a role in increasing friction. And erecting a new large-roll polytetrafluoroethylene film and an air expansion shaft 13 on a ball bearing 15, and connecting the polytetrafluoroethylene film to be unreeled and the newly installed polytetrafluoroethylene film.
The utility model discloses a theory of operation:
the polytetrafluoroethylene film is wound on the inflatable shaft 13, the inflatable shaft 13 is placed between two pairs of ball bearings 15, after placement is completed, a second gear 33 at one end of the inflatable shaft 13 is meshed with a first gear 32, the polytetrafluoroethylene film is pulled out manually, bypasses a pressure detection roller 17, a plurality of transition rollers 22 and passes through between a conveying roller 19 and a pressing roller 21, and is recently sent into equipment, a driving motor 26 is started to control the conveying roller 19 to rotate clockwise, the polytetrafluoroethylene film is conveyed to stretching equipment under the pressing action of the pressing roller 21 above, the inflatable shaft 13 rotates anticlockwise under the driving action of the conveying roller 19 to be unwound, in the unwinding process, the unwinding speed and the transmission speed of the conveying roller 19 are unequal, so that the unwinding tension is unbalanced, wherein a pressure sensor 16 located between the conveying roller 19 and the inflatable shaft 13 plays a role in detecting tension, the polytetrafluoroethylene film gives pressure to the pressure detection roller 17 when passing through the pressure detection roller 17, namely the tension of the polytetrafluoroethylene film is received by the pressure sensor 16, the tension signal received by the magnetic powder sensor 16 at the moment, the tension signal is transmitted to the pressure sensor 16, the pressure sensor 31, the internal tension of the polytetrafluoroethylene film is controlled by a torque control mechanism 30, and the internal speed of the second gear 31, and the brake mechanism is controlled by a constant speed control signal 31, and the internal speed of the second gear 31, and the internal speed control mechanism is controlled by the brake, and the internal speed of the brake.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, which is intended to cover any modifications, equivalent substitutions or improvements made within the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a permanent tension unwinding device, includes frame (11), be equipped with motor control's conveying roller (19) in frame (11), its characterized in that: the automatic pneumatic detection device is characterized in that a pressure sensor (16) is installed on the rack (11), a pressure detection roller (17) is installed on a strain gage of the pressure sensor (16), a speed control mechanism (30) is arranged on the rack (11), the speed control mechanism (30) comprises a magnetic powder brake (31) fixedly connected with the rack (11), a detachable pneumatic shaft (13) is arranged on the rack (11) in a rotating mode, the magnetic powder brake (31) controls the pneumatic shaft (13) to rotate, and the pressure sensor (16) is in telecommunication connection with the magnetic powder brake (31).
2. The constant-tension unwinding device of claim 1, wherein: the air expansion mechanism is characterized in that two pairs of ball bearings (15) are arranged on the rack (11), the air expansion shaft (13) is erected between the two pairs of ball bearings (15), and the ball bearings (15) are arranged on a bearing frame (14) fixedly connected with the rack (11).
3. The constant-tension unwinding device of claim 1, wherein: the magnetic powder brake (31) is fixedly connected with the rack (11) through a mounting rack (12), a first gear (32) is fixedly arranged on a control shaft of the magnetic powder brake (31), a second gear (33) is fixedly connected with one end of the inflatable shaft (13), and the second gear (33) is meshed with the first gear (32).
4. The constant-tension unwinding device of claim 1, wherein: frame (11) are gone up to be fixed and are equipped with support frame (18), fixed mounting has driving motor (26) on support frame (18), driving motor (26) control conveying roller (19) rotate, support frame (18) top is fixed and is equipped with cylinder (20), the telescopic shaft of cylinder (20) sets up in being close to conveying roller (19) one side, it is equipped with compressing roller (21) to rotate on the telescopic shaft of cylinder (20).
5. The constant-tension unwinding device of claim 1, wherein: the device is characterized in that a plurality of transition rollers (22) are arranged on the rack (11), a distance sensor (23) is arranged between the transition rollers (22) and the pressure detection rollers (17), and the distance sensor (23) is fixedly connected to the rack (11).
6. The constant-tension unwinding device of claim 1, wherein: fixedly connected with link (24) on frame (11), fixed mounting has auxiliary stand (25) on link (24), the fixed felt piece (27) that are equipped with in the half slot of auxiliary stand (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222192106.9U CN218174039U (en) | 2022-08-19 | 2022-08-19 | Constant tension unwinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222192106.9U CN218174039U (en) | 2022-08-19 | 2022-08-19 | Constant tension unwinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218174039U true CN218174039U (en) | 2022-12-30 |
Family
ID=84618382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222192106.9U Active CN218174039U (en) | 2022-08-19 | 2022-08-19 | Constant tension unwinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218174039U (en) |
-
2022
- 2022-08-19 CN CN202222192106.9U patent/CN218174039U/en active Active
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