CN215100870U - Material roller differential adjusting device - Google Patents
Material roller differential adjusting device Download PDFInfo
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- CN215100870U CN215100870U CN202121659343.0U CN202121659343U CN215100870U CN 215100870 U CN215100870 U CN 215100870U CN 202121659343 U CN202121659343 U CN 202121659343U CN 215100870 U CN215100870 U CN 215100870U
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- material roller
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Abstract
The utility model discloses a material roller differential adjusting device, which comprises a material roller, a friction part and a driving part, wherein the driving part is driven by a driving mechanism to realize rotation, the friction part is sleeved at one end of the material roller, the driving part is sleeved on the friction part, the inner peripheral side wall of the friction part is in interference fit with the outer peripheral side wall of the material roller, or the friction part is in synchronous transmission connection with the material roller; when the inner peripheral side wall of the friction part is in interference fit with the outer peripheral side wall of the material roller, the inner peripheral side wall of the driving part is in interference fit with the outer peripheral side wall of the friction part, or the driving part is in synchronous transmission connection with the friction part; when the friction part is in synchronous transmission connection with the material roller, the inner peripheral side wall of the driving part is in interference fit with the outer peripheral side wall of the friction part. The device has simple structure, convenient installation and disassembly and convenient use.
Description
Technical Field
The utility model belongs to the technical field of the transmission structure and specifically relates to a material roller differential adjusting device is related to.
Background
In fields such as printer, film printing, cloth production, often need to twine the rolling operation to printing paper (if from type paper, carbon ribbon etc.), film, cloth, at rolling operation in-process, the material external diameter on the receipts material roller increases gradually, but the speed of material transport and the speed that drives receipts material roller pivoted are invariable, lead to receiving material stress inequality on the material roller, lead to the material impaired or the machine is impaired easily.
To solve this problem, existing solutions are usually mechanical or electrical.
The electronic control type generally monitors the change of the outer diameter of the material on the material receiving roller in real time through an encoder or a sensor, feeds the data back to a central control system, and controls the rotating speed of a motor driving the material receiving roller through the central control system, so that the rolling operation of the material receiving roller is not influenced.
The mechanical type is usually to set up a spring or other elastic objects in the end of the receiving roll, one end of the spring is supported and supported on an annular step on the receiving roll, another end of the spring is pushed down through a clamp plate, the clamp plate is fixed on gear, through adjusting the elasticity that the clamp plate applies to the spring, adjust the direct axial force of gear and receiving roll, when the pulling force that the receiving roll receives is greater than the friction force that the axial compression that the spring provides produces, both slipping, thus adjust the rotational speed of the receiving roll, this way acts on two acted portions separately through both ends of the spring or other elastic objects, the end connection, the axial compression produced through compression spring produces and then the friction force produced realizes the control; firstly, the spring is troublesome to install and debug, is compressed too tightly, is easy to cause overlarge friction force, is easy to damage parts, is compressed insufficiently and has insufficient friction force; secondly, the installation and assembly are complicated, the production efficiency is low, a precise instrument is needed to debug and test the stress of the spring so as to ensure stable product quality, the yield is difficult to control, and the production cost is improved.
Chinese document CN201310273239.1 discloses a roll adjusting device for a winding frame of a large format printer, which uses the above-mentioned mechanical scheme for adjusting the rotation speed of the roller, and has the above-mentioned disadvantages and drawbacks.
Disclosure of Invention
In view of the above, there is a need for a material roller differential speed adjusting device with simple structure, easy installation, high production efficiency and low cost.
In order to solve the technical problem, the technical scheme of the utility model is that: a material roller differential speed adjusting device comprises a material roller, a friction part and a driving part, wherein the driving part is driven by a driving mechanism to realize rotation, the friction part is sleeved at one end of the material roller, the driving part is sleeved on the friction part, the inner peripheral side wall of the friction part is in interference fit with the outer peripheral side wall of the material roller, or the friction part is in synchronous transmission connection with the material roller; when the inner peripheral side wall of the friction part is in interference fit with the outer peripheral side wall of the material roller, the inner peripheral side wall of the driving part is in interference fit with the outer peripheral side wall of the friction part, or the driving part is in synchronous transmission connection with the friction part; when the friction part is in synchronous transmission connection with the material roller, the inner peripheral side wall of the driving part is in interference fit with the outer peripheral side wall of the friction part; when making the drive division rotate, the drive division drives the material roller through friction portion and rotates, the material roller receives the material pulling force of winding on it and is greater than friction portion or drive division and to its applied force time, takes place to skid between friction portion and the material roller, or takes place to skid between friction portion and the drive division.
Further, the friction part is a shaft sleeve.
Further, the shaft sleeve is a rubber sleeve.
Further, the friction part is a spring.
Furthermore, the spring is provided with a convex part, and the material roller or the driving part is provided with a clamping groove for the convex part to be embedded into so as to realize synchronous transmission connection between the friction part and the material roller or between the driving part and the friction part.
Further, a cover plate is fixedly connected to the end portion of the material roller, and the clamping groove is formed in the cover plate.
Further, the driving part is provided with a hub for accommodating the friction part, and the clamping groove is formed in the side wall of the hub.
Further, the driving part is a gear.
Further, the rotation direction of the spring is the same as the rotation direction of the material roller.
Compared with the prior art, the utility model discloses following beneficial effect has: the device changes the original structural design, realizes the control and the regulation of the rotating speed of the material roller by utilizing the inner and outer peripheral side walls of the friction part, and has simple structure and convenient use.
In order to make the aforementioned and other objects, features and advantages of the invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is an explosion intention of the embodiment of the present invention.
Fig. 3 is a usage status diagram of the embodiment of the present invention.
In the figure: 1-material roller, 11-cover plate, 2-driving part, 21-hub, 22-clamping groove, 3-friction part, 31-convex part and 4-printer.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1-3, a material roller differential speed adjusting device, which is applied to a printer 4, includes a material roller 1, a friction portion 3 and a driving portion 2, wherein the material roller 1 is used as a material receiving roller of the printer for receiving release paper or a carbon ribbon, and of course, the material roller 1 can also be used as both the material receiving roller and the material discharging roller.
The friction part 3 is a spring with a convex part 31, the driving part 2 is a gear with a hub 21, the driving part 2 is rotatably connected to a rack of the printer 4, the driving part 2 is connected with a motor through a gear set, the material roller 1 is rotatably connected to the rack as a material receiving roller of the printer 4, and one end of the material roller 1 penetrates out of the rack and is located in the hub 21 of the driving part.
The end of the material roller 1 is fixedly connected with a cover plate 11, the cover plate 11 and the hub 21 jointly form a closed space, and the spring is positioned in the space.
The friction part 3 is sleeved at one end of the material roller, a clamping groove 22 is formed in a hub 21 of the gear, a convex part 31 of the friction part 3 is embedded in the clamping groove 22, and the inner peripheral side wall of the friction part 3 is in interference fit with the outer peripheral side wall of the material roller 1. The synchronous rotation of the friction part 3 and the driving part 2 is realized by the cooperation of the convex part 31 and the clamping groove 22. Of course, the friction portion 3 and the driving portion 2 may be designed to be in interference fit, that is, the inner peripheral sidewall of the hub of the driving portion 2 and the outer peripheral sidewall of the friction portion 3 are in interference fit.
In this embodiment, drive division 2 mainly drives friction portion 3 through convex part 31 and rotates, friction portion 3 drives material roller 1 through the resistance that interference fit between the week lateral wall produced and rotates, when the resistance that leaves type paper or carbon ribbon winding radius on material roller 1 is bigger and bigger, the pulling force that material roller 1 received also increases thereupon, when this pulling force surpassed the resistance between friction portion 3 and the material roller 1, the phenomenon of skidding takes place between friction portion 3 and the material roller 1, thereby realize the self-adaptation regulation of 1 rotational speed of material roller, avoid being torn apart from type paper or carbon ribbon.
Of course, the clamping groove can also be arranged on the peripheral side wall of the cover plate, synchronous rotation of the friction part and the material roller is realized through the matching of the convex part and the clamping groove, at the moment, the friction part and the material roller are in interference fit or clearance fit, and acting force between the friction part and the material roller is mainly generated by the convex part and the clamping groove. In this scheme, be interference fit between drive division inner peripheral side wall and the friction portion periphery lateral wall, the resistance that drive division produced through this interference fit drives friction portion and material roller synchronous rotation, when on the material roller from type paper or carbon ribbon winding radius when bigger and bigger, the pulling force that the material roller received also increases thereupon, when this pulling force surpassed the resistance between friction portion and the drive division, the phenomenon of skidding takes place between friction portion and the drive division, thereby realize the self-adaptation regulation of material roller rotational speed, avoid being torn from type paper or carbon ribbon.
Of course, the spring is the best choice for the friction part, and the friction part can also be selected for other structures and materials, for example for a shaft sleeve, and the shaft sleeve can be rigid material also can be elastic material, and when the shaft sleeve is rigid material, its week lateral wall has the line that increases frictional force, when the elastic material of shaft sleeve, can select the rubber sleeve for use.
In this embodiment, the turning direction of the spring is the same as the turning direction of the material roller. Thereby make when the material roller takes place the antiport, can drive the spring and take place the antiport, lead to the external diameter increase of spring to it is dead to take place the card, and material roller, friction portion and drive division realize synchronous rotation, are favorable to the quick material returned of material roller.
The design of the scheme has the advantages that firstly, the installation and the disassembly are convenient, compared with the scheme of relying on the stress at two ends of the spring in the prior art, the scheme only needs to put the spring into the hub to lock the cover plate, and the installation and the disassembly are rapid and convenient; secondly, the applied force is convenient to control, compared with the scheme of relying on the stress at two ends of the spring in the prior art, the stress of the spring is tested by auxiliary equipment, the compression degree of the spring is adjusted, the scheme only needs to control the outer diameter and the rotation direction of the spring, the production efficiency is greatly improved, and the yield is improved; thirdly, the rotation direction of the spring is consistent with the rotation direction of the material roller, the rotating speed can be adjusted when the material roller rotates forwards, and the three can rotate synchronously when the material roller rotates backwards, so that rapid and accurate material returning is realized.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the equivalent embodiments by utilizing the above disclosed technical contents without departing from the technical scope of the present invention, but all the modifications, changes and changes of the technical spirit of the present invention made to the above embodiments are also within the scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a material roller differential adjusting device which characterized in that: the material roller comprises a material roller, a friction part and a driving part, wherein the driving part is driven by a driving mechanism to realize rotation, the friction part is sleeved at one end of the material roller, the driving part is sleeved on the friction part, and the inner peripheral side wall of the friction part is in interference fit with the outer peripheral side wall of the material roller or is in synchronous transmission connection with the material roller; when the inner peripheral side wall of the friction part is in interference fit with the outer peripheral side wall of the material roller, the inner peripheral side wall of the driving part is in interference fit with the outer peripheral side wall of the friction part, or the driving part is in synchronous transmission connection with the friction part; when the friction part is in synchronous transmission connection with the material roller, the inner peripheral side wall of the driving part is in interference fit with the outer peripheral side wall of the friction part; when making the drive division rotate, the drive division drives the material roller through friction portion and rotates, the material roller receives the material pulling force of winding on it and is greater than friction portion or drive division and to its applied force time, takes place to skid between friction portion and the material roller, or takes place to skid between friction portion and the drive division.
2. A material roller differential speed adjustment device according to claim 1, characterized in that: the friction part is a shaft sleeve.
3. A material roller differential speed adjustment device according to claim 2, characterized in that: the shaft sleeve is a rubber sleeve.
4. A material roller differential speed adjustment device according to claim 1, characterized in that: the friction part is a spring.
5. A material roller differential speed adjusting device according to claim 4, characterized in that: the spring is provided with a convex part, and the material roller or the driving part is provided with a clamping groove for the convex part to be embedded into so as to realize synchronous transmission connection between the friction part and the material roller or between the driving part and the friction part.
6. A material roller differential speed adjusting device according to claim 5, characterized in that: the material roller end part is fixedly connected with a cover plate, and the clamping groove is formed in the cover plate.
7. A material roller differential speed adjusting device according to claim 5, characterized in that: the driving part is provided with a hub for accommodating the friction part, and the clamping groove is formed in the side wall of the hub.
8. A material roller differential speed adjustment device according to claim 1, characterized in that: the driving part is a gear.
9. A material roller differential speed adjusting device according to claim 4, characterized in that: the rotation direction of the spring is the same as the rotation direction of the material roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121659343.0U CN215100870U (en) | 2021-07-21 | 2021-07-21 | Material roller differential adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121659343.0U CN215100870U (en) | 2021-07-21 | 2021-07-21 | Material roller differential adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215100870U true CN215100870U (en) | 2021-12-10 |
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ID=79318054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121659343.0U Active CN215100870U (en) | 2021-07-21 | 2021-07-21 | Material roller differential adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215100870U (en) |
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2021
- 2021-07-21 CN CN202121659343.0U patent/CN215100870U/en active Active
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