CN212639326U - Winding mechanism of sheet machine - Google Patents
Winding mechanism of sheet machine Download PDFInfo
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- CN212639326U CN212639326U CN202021119808.9U CN202021119808U CN212639326U CN 212639326 U CN212639326 U CN 212639326U CN 202021119808 U CN202021119808 U CN 202021119808U CN 212639326 U CN212639326 U CN 212639326U
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Abstract
The utility model discloses a rolling mechanism of a sheet machine, which comprises a rolling support, a servo motor, a rolling shaft, a manual adjusting mechanism, a speed reducer, a transmission shaft and a friction force adjusting device, wherein the servo motor is arranged on the rolling support, and the rolling shaft is rotatably arranged on the rolling support; the output shaft of the speed reducer is a hollow shaft, and the transmission shaft is positioned in the hollow shaft; a key groove extending along the axial direction is formed in the inner side wall of the hollow shaft, and a key strip matched with the key groove is arranged on the transmission shaft; the power output shaft of the servo motor is in transmission connection with the hollow shaft, the outer end of the transmission shaft is in contact fit with the manual adjusting mechanism, and the inner end of the transmission shaft is in transmission connection with the winding shaft through the friction adjusting device. The winding mechanism of the sheet machine can properly control the rotating speed of the winding shaft in a manual mode, freely adjust the tightness during winding of the plastic film, enable the plastic film wound on the winding shaft not to be too compact or too loose, and facilitate the detachment of the whole plastic film from the winding shaft.
Description
Technical Field
The utility model relates to a winding mechanism, in particular to sheet machine winding mechanism.
Background
The winding mechanism is one of the mechanisms commonly used in the mechanical technology field, for example, the winding mechanism is often used in the production of plastic films, and after the plastic films come out of a film blowing machine, the manufactured film products are wound by the winding mechanism. The existing winding mechanism generally comprises a winding support, a winding shaft arranged on the winding support and a servo motor used for driving the winding shaft to rotate, the winding shaft is in transmission connection with the servo motor through a power transmission structure, and the servo motor works to drive the winding shaft to rotate so as to wind the plastic film on the winding shaft.
However, the method of directly driving the winding shaft to rotate by the servo motor cannot properly control the rotation speed of the servo motor, so that the rotation speed of the winding shaft is slow. When the rotating speed of the servo motor is too fast, the rotating speed of the winding shaft is also fast, the plastic film is easy to receive large traction force when being wound, the plastic film is easy to tear off, the plastic film wound on the winding shaft is easy to be too compact, and the whole plastic film is difficult to detach from the winding shaft. When the rotating speed of the servo motor is too slow, the rotating speed of the winding shaft is also slowed, and the plastic film cannot receive proper traction force during winding, so that the plastic film is difficult to wind and form and is loose after winding.
Disclosure of Invention
The utility model aims to solve the problem that a sheet machine winding mechanism is provided, this kind of sheet machine winding mechanism can suitably control the rolling speed, elasticity when freely adjusting the plastic film rolling.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
a winding mechanism of a sheet machine comprises a winding support, a servo motor and a winding shaft, wherein the servo motor is arranged on the winding support, and the winding shaft is rotatably arranged on the winding support; the method is characterized in that: the friction adjusting mechanism comprises a manual adjusting mechanism, a speed reducer, a transmission shaft and a friction adjusting device, wherein an output shaft of the speed reducer is a hollow shaft, and the transmission shaft is positioned in the hollow shaft; a key groove extending along the axial direction is formed in the inner side wall of the hollow shaft, and a key strip matched with the key groove is arranged on the transmission shaft; the power output shaft of the servo motor is in transmission connection with the hollow shaft, the outer end of the transmission shaft is in contact fit with the manual adjusting mechanism, and the inner end of the transmission shaft is in transmission connection with the winding shaft through the friction adjusting device.
The above definitions of inner and outer: the inner part is one end close to the winding shaft, and the outer part is one end far away from the winding shaft.
The key strips on the transmission shaft are positioned in the key grooves in the inner side wall of the hollow shaft, the transmission shaft can be positioned, the rotation of the transmission shaft in the hollow shaft is avoided, when the servo motor drives the hollow shaft to rotate, the transmission shaft can rotate along with the rotation of the hollow shaft, and the transmission shaft can move inwards along the axial direction of the hollow shaft during manual control of the manual adjusting mechanism.
When the film winding machine works, the winding roller is fixedly installed on the winding shaft manually, then the servo motor drives the hollow shaft to rotate, the transmission shaft rotates along with the rotation of the hollow shaft, the outer end of the transmission shaft is controlled manually through the manual adjusting mechanism in the state that the servo motor rotates at a fixed speed, the transmission shaft is extruded from outside to inside, and due to the fact that the friction adjusting device is arranged between the inner end of the transmission shaft and the winding shaft, the rotating speed of the winding shaft and the rotating speed of the servo motor tend to be the same due to the fact that large friction force is generated between the inner end of the transmission shaft and the winding shaft in the state that the transmission shaft is extruded, the rotating speed of the winding shaft is accelerated, and films can be wound on the winding roller compactly.
When the outer end of the transmission shaft is manually controlled to move outwards through the manual adjusting mechanism, the outer end of the transmission shaft is pressed by the manual adjusting mechanism, so that the limit of the friction adjusting device between the inner end of the transmission shaft and the winding shaft is reduced or eliminated.
As the preferred scheme of the utility model, the speed reducer also comprises a limit sleeve, the outer end of which is arranged on the shell of the speed reducer; the inner end of the transmission shaft, the friction force adjusting device and the outer end of the winding shaft are sequentially arranged in the limiting sleeve from outside to inside. The inner end of the transmission shaft, the friction force adjusting device and the outer end of the winding shaft are all arranged in the limiting sleeve, so that friction adjustment between the inner end of the transmission shaft and the winding shaft is completed in the limiting sleeve, and the friction between the transmission shaft and the winding shaft is limited.
As a further preferred scheme of the utility model, frictional force adjusting device includes first flange, friction disc and second flange, first flange with the inner of transmission shaft is connected, the second flange with the outer end of rolling axle is connected, and the friction disc is in between first flange and the second flange, the surface of friction disc and the internal surface in close contact with of first flange, the internal surface of friction disc and the surface in close contact with of second flange. The inner end of the transmission shaft is in contact fit with the outer surface of the friction plate through the first flange, and the outer end of the winding shaft is in contact fit with the inner surface of the friction plate through the second flange. When the rotating speed of the winding shaft is to be accelerated, the first flange, the friction plate and the second flange are sequentially extruded from outside to inside, the first flange and the friction plate and the second flange are mutually pressed to generate friction, and the friction force between the first flange and the friction plate and the friction force between the friction plate and the second flange are adjusted through the manual adjusting mechanism.
As a preferred scheme of the present invention, the manual adjustment mechanism includes a sleeve, a nut, a screw rod, a pressing plate, an expansion spring, a pushing plate and a hand wheel, the nut is sleeved on the screw rod, and a main body of the nut is installed on an outer end of the sleeve, the pressing plate, the expansion spring and the pushing plate are all located in the sleeve, the pressing plate is connected with an inner end of the screw rod, the expansion spring is located between the pressing plate and the pushing plate, and the pushing plate is connected with an inner end of the expansion spring, the hand wheel is installed on an outer end of the screw rod; the outer end of the transmission shaft is positioned in the inner end of the sleeve, the outer end of the extension spring is in contact fit with the pressing sheet, and the pushing sheet is in contact fit with the outer end of the transmission shaft. The manual work is through forward rotation hand wheel, drives the preforming and along telescopic inside wall inward movement, makes expanding spring's outer end receive the extrusion of preforming, and expanding spring shortens, and then the outer end of push jack oppression transmission shaft makes the transmission shaft extrude from the outside-in. The manual work is through the antiport hand wheel, drives the preforming and outwards removes along telescopic inside wall, makes the preforming release gradually the extrusion to expanding spring's outer end, makes expanding spring slowly reset the elongated, and then makes the push jack reduce the oppression to the outer end of transmission shaft, makes the outer end of transmission shaft outwards remove.
Compared with the prior art, the utility model, have following advantage:
the winding mechanism of the sheet machine can properly control the rotating speed of the winding shaft in a manual mode, freely adjust the tightness of the plastic film during winding, enable the plastic film to be subjected to proper traction tension during winding, prevent the plastic film from being torn off easily, enable the plastic film wound on the winding shaft not to be too compact or too loose, and facilitate the whole plastic film to be detached from the winding shaft.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural view of the hollow shaft and the transmission shaft cooperating with each other in the embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, the winding mechanism of the sheet machine in this embodiment includes a winding support (not shown), a servo motor 1, a winding shaft 2, a manual adjusting mechanism 3, a speed reducer 4, a transmission shaft 5 and a friction force adjusting device 6, wherein the servo motor 1 is installed on the winding support, and the winding shaft 2 is rotatably installed on the winding support; the output shaft of the speed reducer 4 is a hollow shaft 41, and the transmission shaft 5 is positioned in the hollow shaft 41; a key groove 42 extending along the axial direction is arranged on the inner side wall of the hollow shaft 41, and a key strip 51 matched with the key groove 42 is arranged on the transmission shaft 5; the power output shaft of the servo motor 1 is in transmission connection with the hollow shaft 41, the outer end of the transmission shaft 5 is in contact fit with the manual adjusting mechanism 3, and the inner end of the transmission shaft 5 is in transmission connection with the winding shaft 2 through the friction adjusting device 6.
The above definitions of inner and outer: the inner part is one end close to the winding shaft 2, and the outer part is one end far away from the winding shaft 2.
The key strips 51 on the transmission shaft 5 are positioned in the key grooves 42 on the inner side wall of the hollow shaft 41, so that the transmission shaft 5 can be positioned, the transmission shaft 5 is prevented from rotating in the hollow shaft 41, when the hollow shaft 41 is driven to rotate by the servo motor 1, the transmission shaft 5 can rotate along with the rotation of the hollow shaft 41, and when the manual adjusting mechanism 3 is manually controlled, the transmission shaft 5 can move inwards along the axial direction of the hollow shaft 41.
The winding mechanism of the sheet machine comprises a limiting sleeve 7, wherein the outer end of the limiting sleeve 7 is arranged on the shell of a speed reducer 4; the inner end of the transmission shaft 5, the friction force adjusting device 6 and the outer end 21 of the winding shaft 2 are sequentially arranged in the limiting sleeve 7 from outside to inside. The inner end of the transmission shaft 5, the friction force adjusting device 6 and the outer end 21 of the winding shaft 2 are all arranged in the limiting sleeve 7, so that friction adjustment between the inner end of the transmission shaft 5 and the winding shaft 2 is completed in the limiting sleeve 7, and the friction between the transmission shaft 5 and the winding shaft 2 is limited.
The friction force adjusting device 6 comprises a first flange 61, a friction plate 62 and a second flange 63, wherein the first flange 61 is connected with the inner end of the transmission shaft 5, the second flange 63 is connected with the outer end 21 of the winding shaft 2, the friction plate 62 is arranged between the first flange 61 and the second flange 63, the outer surface of the friction plate 62 is tightly contacted with the inner surface of the first flange 61, and the inner surface of the friction plate 62 is tightly contacted with the outer surface of the second flange 63. The inner end of the transmission shaft 5 is in contact fit with the outer surface of the friction plate 62 through the first flange 61, and the outer end 21 of the winding shaft 2 is in contact fit with the inner surface of the friction plate 62 through the second flange 63. When the rotating speed of the winding shaft 2 is to be increased, the first flange 61, the friction plate 62 and the second flange 63 are sequentially squeezed from outside to inside, the friction is generated between the first flange 61 and the friction plate 62 and between the friction plate 62 and the second flange 63 through mutual pressing, and the friction force between the first flange 61 and the friction plate 62 and between the friction plate 62 and the second flange 63 is adjusted through the manual adjusting mechanism 3.
The manual adjusting mechanism 3 comprises a sleeve 31, a nut 32, a screw 33, a pressing piece 34, an expansion spring 35, a pushing piece 36 and a hand wheel 37, wherein the nut 32 is sleeved on the screw 33, the main body of the nut 32 is installed on the outer end of the sleeve 31, the pressing piece 34, the expansion spring 35 and the pushing piece 36 are all located in the sleeve 31, the pressing piece 34 is connected with the inner end of the screw 33, the expansion spring 35 is located between the pressing piece 34 and the pushing piece 36, the pushing piece 36 is connected with the inner end of the expansion spring 35, and the hand wheel 37 is installed on the outer end of the screw 33; the outer end of the transmission shaft 5 is arranged in the inner end of the sleeve 31, the outer end of the extension spring 35 is in contact fit with the pressing sheet 34, and the pushing sheet 36 is in contact fit with the outer end of the transmission shaft 5. Manual work is through forward rotation hand wheel 37, drives preforming 34 along the inside wall of sleeve 31 inwards movement, makes expanding spring 35's outer end receive preforming 34's extrusion, and expanding spring 35 shortens, and then the outer end of push jack 36 oppression transmission shaft 5, makes transmission shaft 5 extrude from the outside to the inside. Manually, the hand wheel 37 is rotated reversely to drive the pressing sheet 34 to move outwards along the inner side wall of the sleeve 31, so that the pressing sheet 34 gradually releases the extrusion on the outer end of the extension spring 35, the extension spring 35 slowly resets and lengthens, the pushing sheet 36 reduces the oppression on the outer end of the transmission shaft 5, and the outer end of the transmission shaft 5 moves outwards.
When the winding machine works, the winding roller 8 is fixedly installed on the winding shaft 2 manually, then the hollow shaft 41 is driven to rotate by the servo motor 1, the transmission shaft 5 rotates along with the rotation of the hollow shaft 41, the outer end of the transmission shaft 5 is controlled manually through the manual adjusting mechanism 3 in the state that the servo motor 1 rotates at a fixed speed, the transmission shaft 5 is extruded from outside to inside, and due to the fact that the friction adjusting device 6 is arranged between the inner end of the transmission shaft 5 and the winding shaft 2, in the state that the transmission shaft 5 is extruded, the rotating speed of the winding shaft 2 and the rotating speed of the servo motor 1 tend to be the same due to the fact that large friction force is generated between the inner end of the transmission shaft 5 and the winding shaft 2, the rotating speed of the winding shaft 2 is accelerated, and a film can be wound on the winding roller.
When the outer end of the transmission shaft 5 is controlled to move outwards through the manual adjusting mechanism 3 manually, the outer end of the transmission shaft 5 is enabled to reduce the pressure from the manual adjusting mechanism 3, so that the limitation of the friction force adjusting device 6 between the inner end of the transmission shaft 5 and the winding shaft 2 is reduced or eliminated, although the winding shaft 2 is driven by the servo motor 1 to rotate, the rotating speed of the winding shaft 2 is lower than that of the servo motor 1, so that the rotating speed of the winding shaft 2 is reduced, and the film can be wound on the winding roller 8 in a loose mode.
In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (4)
1. A winding mechanism of a sheet machine comprises a winding support, a servo motor and a winding shaft, wherein the servo motor is arranged on the winding support, and the winding shaft is rotatably arranged on the winding support; the method is characterized in that: the friction adjusting mechanism comprises a manual adjusting mechanism, a speed reducer, a transmission shaft and a friction adjusting device, wherein an output shaft of the speed reducer is a hollow shaft, and the transmission shaft is positioned in the hollow shaft; a key groove extending along the axial direction is formed in the inner side wall of the hollow shaft, and a key strip matched with the key groove is arranged on the transmission shaft; the power output shaft of the servo motor is in transmission connection with the hollow shaft, the outer end of the transmission shaft is in contact fit with the manual adjusting mechanism, and the inner end of the transmission shaft is in transmission connection with the winding shaft through the friction adjusting device.
2. The winding mechanism of a sheet machine as claimed in claim 1, wherein: the outer end of the limiting sleeve is arranged on the shell of the speed reducer; the inner end of the transmission shaft, the friction force adjusting device and the outer end of the winding shaft are sequentially arranged in the limiting sleeve from outside to inside.
3. The winding mechanism of a sheet machine as claimed in claim 2, wherein: the friction force adjusting device comprises a first flange, a friction plate and a second flange, the first flange is connected with the inner end of the transmission shaft, the second flange is connected with the outer end of the winding shaft, the friction plate is located between the first flange and the second flange, the outer surface of the friction plate is in close contact with the inner surface of the first flange, and the inner surface of the friction plate is in close contact with the outer surface of the second flange.
4. The winding mechanism of a sheet machine as claimed in claim 3, wherein: the manual adjusting mechanism comprises a sleeve, a nut, a screw rod, a pressing sheet, an expansion spring, a pushing sheet and a hand wheel, the nut is sleeved on the screw rod, the main body of the nut is installed on the outer end of the sleeve, the pressing sheet, the expansion spring and the pushing sheet are all located in the sleeve, the pressing sheet is connected with the inner end of the screw rod, the expansion spring is located between the pressing sheet and the pushing sheet, the pushing sheet is connected with the inner end of the expansion spring, and the hand wheel is installed on the outer end of the screw rod; the outer end of the transmission shaft is positioned in the inner end of the sleeve, the outer end of the extension spring is in contact fit with the pressing sheet, and the pushing sheet is in contact fit with the outer end of the transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021119808.9U CN212639326U (en) | 2020-06-17 | 2020-06-17 | Winding mechanism of sheet machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021119808.9U CN212639326U (en) | 2020-06-17 | 2020-06-17 | Winding mechanism of sheet machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212639326U true CN212639326U (en) | 2021-03-02 |
Family
ID=74771055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021119808.9U Active CN212639326U (en) | 2020-06-17 | 2020-06-17 | Winding mechanism of sheet machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212639326U (en) |
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2020
- 2020-06-17 CN CN202021119808.9U patent/CN212639326U/en active Active
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