CN218507284U - Tension roller and film winding device - Google Patents
Tension roller and film winding device Download PDFInfo
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- CN218507284U CN218507284U CN202222624286.3U CN202222624286U CN218507284U CN 218507284 U CN218507284 U CN 218507284U CN 202222624286 U CN202222624286 U CN 202222624286U CN 218507284 U CN218507284 U CN 218507284U
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Abstract
The utility model discloses a tight roller that rises and roll up membrane device relates to a roll membrane equipment technical field. The tension roller comprises a main shaft, an elastic piece and a locking block. Part of the wall surface of the locking section of the main shaft is arranged in a protruding mode along the radial direction, so that the locking section sequentially forms a cam portion and a retraction portion along the circumferential direction. The elastic piece is connected between the main shaft and the locking block and provides elastic force to enable the locking block to be pressed on the peripheral surface of the locking section. In the process that the main shaft rotates relative to the locking block, the main shaft can be alternately pressed on the cam part and the retraction part to change the position of the locking block in the radial direction, so that the main shaft can be pressed and loosened with the help of the locking block and the film rolling central pipe.
Description
Technical Field
The utility model relates to a roll up membrane equipment technical field, in particular to tight roller and roll up membrane device rise.
Background
In the film rolling equipment, an inflatable roller is used as a clamping tool and is connected with a film rolling central pipe. Wherein, physiosis roller one end stretches into and rolls up membrane center tube, and the physiosis pipe through aerifing the inflation with roll up membrane center tube fixed connection. However, the inflatable roller is made of soft materials, so that the inflatable roller is easy to damage, and the structural precision is high, so that the equipment cost is high; meanwhile, the connection strength of the inflatable roller and the film winding central tube can be ensured only by accurately controlling the inflation quantity, so that inconvenience is brought to use.
Therefore, how to provide a clamping tool with simple structure, durability and convenient use is a technical problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a tight roller rises, simple structure, more durable, and convenient to use. Another objective of the present invention is to provide a film rolling device including the above tension roller, which has a simple structure, is more durable, and is convenient for use.
In order to achieve the above object, the utility model provides a following technical scheme:
a tension roller comprises a main shaft, an elastic piece and a locking block;
part of wall surface of the locking section of the main shaft is arranged in a protruding mode along the radial direction, so that the locking section sequentially forms a cam part and a retraction part along the circumferential direction;
the elastic piece is connected between the main shaft and the locking block and provides elastic force so that the locking block is pressed on the peripheral surface of the locking section;
during the rotation of the main shaft relative to the locking block, the main shaft can alternately press the cam part and the retraction part so as to change the position of the locking block in the radial direction.
Preferably, the number of the cam parts and the number of the retraction parts are at least two, and the cam parts and the retraction parts are sequentially arranged in a staggered manner in the circumferential direction.
Preferably, at least two locking blocks are sequentially arranged on the periphery of the locking section along the circumferential direction.
Preferably, the outer circumferential surface of the locking block is provided with a friction line.
Preferably, the spindle further comprises a sleeve, the sleeve is rotatably sleeved outside the spindle, a locking hole is arranged on the sleeve in a penetrating manner, and the locking block is arranged in the locking hole; the locking block abuts against the locking hole along the circumferential direction, so that the locking block and the locking hole synchronously move along the circumferential direction, and the locking block can radially move in the locking hole; the lock block protrudes outward in the radial direction from the sleeve in a state where the lock block is pressed against the cam portion.
Preferably, the elastic member includes an elastic ring, and the locking block and the main shaft are located at an inner ring of the elastic ring.
Preferably, an installation groove is formed in the outer peripheral surface of the locking block, and part of the structure of the elastic ring is sunk in the installation groove.
Preferably, the locking block is axially abutted against the locking hole, so that the locking block and the locking hole move synchronously along the axial direction.
Preferably, in the axial direction, part of the structure of the spindle protrudes axially beyond the sleeve.
The film winding device comprises a driving system and further comprises an upper tensioning roller, and the main shaft is fixedly connected to the output end of the driving system.
The utility model provides a tension roller, including main shaft, elastic component and locking piece. Part of the wall surface of the locking section of the main shaft is arranged in a protruding mode along the radial direction, so that the locking section sequentially forms a cam portion and a retraction portion along the circumferential direction. The elastic piece is connected between the main shaft and the locking block and provides elastic force to enable the locking block to be pressed on the peripheral surface of the locking section. During the rotation of the main shaft relative to the locking block, the main shaft can alternately press the cam part and the retraction part to change the position of the locking block in the radial direction
When the film winding machine is used, one end of the main shaft is connected to the driving system, the other end of the main shaft extends into the film winding central tube, at the moment, the locking block is pressed on the retraction part and is positioned in the film winding central tube, and a radial gap is formed between the locking block and the film winding central tube. And then, adjusting the relative angle between the locking block and the main shaft to enable the locking block to be pressed on the cam part, enabling the cam part to tightly press the locking block on the inner circumferential surface of the film rolling central pipe, and enabling the driving system to drive the film rolling central pipe to synchronously rotate through the main shaft and the locking block by means of the friction force between the locking block and the film rolling central pipe.
Through the setting of the cam portion on the locking section and the portion that contracts, can rotate the in-process at the locking section, promote locking block radial motion, so that the main shaft can compress tightly and loosen with the help of locking block and roll up membrane center tube, because realize tight operation that rises with the help of the change of the relative position relation between the structure, need not like prior art in need adopt soft structure self deformation to realize rising, each structure can adopt hard material to make, be favorable to extension equipment life, and convenient operation, in addition, adopt full mechanical mechanism, it is durable to be durable, the fault rate is very low, low in manufacturing cost, moreover, the steam generator is simple in structure, and easy maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a structural diagram of a main shaft of a first embodiment of a tension roller provided by the present invention;
fig. 2 is a front view of a first embodiment of the tension roller provided by the present invention;
FIG. 3 isbase:Sub>A sectional view taken along line A-A of FIG. 2;
FIG. 4 is a sectional view taken along line B-B of FIG. 2;
fig. 5 is a cross-sectional view of a first embodiment of the film winding device according to the present invention.
Reference numerals:
a tensioning roller 1;
an elastic ring 11;
the locking block 12, the friction grains 121 and the mounting groove 122;
the main shaft 13, the locking section 131, the cam portion 1311, the retracting portion 1312;
a sleeve bearing 15;
a circlip 16;
the device comprises a driving system 2, a motor 21, a synchronous wheel set 22, a rotating side positioning shaft 23 and a transition rotating shaft 24;
the membrane rolling piece 3 is used for rolling the membrane element 31 and the membrane rolling central tube 32;
the positioning assembly 4, a telescopic cylinder 41, a linear guide rail 42, a follow-up side positioning shaft 43 and a frame body 44;
a main stand 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a tension roller, which has simple structure, is more durable and is convenient to use. The other core of the utility model is to provide a roll up membrane device including above-mentioned tight roller that rises, its tight roller that rises simple structure, more durable, and convenient to use.
The utility model provides a tension roller's embodiment one is applied to and rolls up membrane device to roll up membrane center tube 32 in clamping, the restraint roll membrane spare 3. In other embodiments, the clamp can be applied to clamping other pipe parts to restrict the relative positions of the pipe parts during rotation.
Referring to fig. 1 to 4, the tension roller includes a main shaft 13, an elastic member, and a locking block 12.
Part of the wall surface of the locking section 131 of the main shaft 13 is provided to project in the radial direction so that the locking section 131 sequentially forms the cam portion 1311 and the retraction portion 1312 in the circumferential direction. Referring to the orientation of fig. 4, the left and right ends of the locking segment 131 are protruded in the radial direction, the left and right ends of the locking segment 131 form cam portions 1311, and a portion between the two cam portions 1311 forms a retraction portion 1312 retracted in the radial direction with respect to the cam portions 1311.
The elastic member is connected between the main shaft 13 and the locking block 12. The elastic member may provide an elastic force to press the locking block 12 against the outer circumferential surface of the locking section 131. The locking block 12 is made of a hard material, and may be a metal structure or a plastic structure. In addition, the lock block 12 may be sized as desired.
During the rotation of the main shaft 13 relative to the lock block 12, the cam portion 1311 and the retraction portion 1312 can be alternately pressed to change the position of the lock block 12 in the radial direction.
In use, as shown in fig. 5, one end of the main shaft 13 is connected to the driving system 2, and the other end extends into the central film winding pipe 32, at this time, the locking block 12 is pressed on the retraction portion 1312, and the locking block 12 is located inside the central film winding pipe 32, and a radial gap is formed between the locking block 12 and the central film winding pipe 32. Then, the relative angle between the locking block 12 and the spindle 13 is adjusted, as shown in fig. 4, so that the locking block 12 presses on the cam portion 1311, the cam portion 1311 presses the locking block 12 against the inner circumferential surface of the central film winding pipe 32, and the driving system 2 can drive the central film winding pipe 32 to synchronously rotate through the spindle 13 and the locking block 12 by virtue of the friction force between the locking block 12 and the central film winding pipe 32.
Wherein, for the driving between the cam portion 1311 of the main shaft 13 and the locking block 12, one way is that the locking segment 131 rotates in one direction (counterclockwise in the embodiment of fig. 4), after the locking block 12 presses on the cam portion 1311, the pressing force F of the cam portion 1311 on the locking block 12 includes a circumferential component force F1 to push the locking block 12 to move circumferentially by the circumferential component force, and when the locking block 12 needs to be retracted, the locking segment 131 rotates in the other direction (clockwise in the embodiment of fig. 4); in another embodiment, the locking segment 131 can also bring the locking block 12 into circumferential movement by means of the friction between the cam portion 1311 and the locking block 12.
In this embodiment, through the arrangement of the cam portion 1311 and the retraction portion 1312 on the locking segment 131, the locking block 12 can be pushed to move radially in the rotation process of the locking segment 131, so that the spindle 13 can be pressed and loosened with the aid of the locking block 12 and the film winding central tube 32, and because the tensioning operation is realized by means of the change of the relative position relationship between the structures, tensioning is realized without adopting the self deformation of a soft structure as required in the prior art, and each structure can be made of a hard material, which is beneficial to prolonging the service life of equipment, and is convenient to operate.
Further, the cam portions 1311 and the retraction portions 1312 are at least two, and the cam portions 1311 and the retraction portions 1312 are sequentially arranged in a staggered manner in the circumferential direction. In the present embodiment, as shown in fig. 4, two cam portions 1311 and two retraction portions 1312 are provided, and preferably, the cross section of the locking section 131 perpendicular to the axial direction is an ellipse, which has a regular shape and is easy to machine, and both ends of the long side of the ellipse correspond to the cam portions 1311 and both ends of the short side of the ellipse correspond to the retraction portions 1312. During the rotation of the locking segment 131, the cam portions 1311 and the retraction portions 1312 alternately contact the locking blocks 12, and accordingly, the locking blocks 12 are sequentially and continuously protruded and retracted in the radial direction, further facilitating the control of the radial position of the locking blocks 12. Of course, in other embodiments, the cam portions 1311, the retraction portions 1312 may be provided in other numbers as desired.
Further, at least two locking blocks 12 are sequentially arranged on the periphery of the locking section 131 along the circumferential direction, so as to increase the contact area between the locking blocks 12 and the central film rolling tube 32. As shown in fig. 4, the two locking blocks 12 are disposed at an interval of 180 °.
Preferably, during the rotation of the locking segment 131, each locking block 12 simultaneously presses on the corresponding cam portion 1311, and each locking block 12 synchronously presses on the corresponding retraction portion 1312, so that each locking block 12 synchronously protrudes and retracts in the radial direction, thereby ensuring that each locking block 12 can synchronously contact with or separate from the central film winding pipe 32.
Further, friction lines 121 are provided on the outer circumferential surface of the locking block 12 to ensure sufficient friction between the locking block 12 and the film winding central tube 32.
Further, the tension roller also comprises a sleeve 14. Referring to fig. 3 to 5, the sleeve 14 is rotatably sleeved outside the main shaft 13, and the relative position of the two is kept unchanged in the axial direction. Wherein, the sleeve 14 is connected with the main shaft 13 through a sleeve bearing 15, and the friction between the sleeve 14 and the main shaft 13 can be reduced. Specifically, the two ends of the sleeve 14 are respectively connected to the main shaft 13 through sleeve bearings 15, one end of the sleeve is connected to the main shaft 13 through an angular contact ball bearing, and the other end of the sleeve is connected to the main shaft 13 through a deep groove ball bearing, wherein the sleeve bearings 15 can be positioned on the main shaft 13 in the axial direction by using elastic retaining rings 16.
As shown in fig. 4, a lock hole 141 is provided through the sleeve 14, and the lock block 12 is provided in the lock hole 141. The locking block 12 is abutted against the locking hole 141 along the circumferential direction, so that the locking block 12 and the locking hole 141 move synchronously along the circumferential direction, and the locking block 12 can move radially in the locking hole 141; in a state where the lock block 12 is pressed against the cam portion 1311, the lock block 12 protrudes outward in the radial direction from the sleeve 14.
When the sleeve 14 rotates, the locking block 12 can be pushed to synchronously move in the circumferential direction through the locking hole 141, and the sleeve 14 can play a role in circumferentially positioning the locking block 12, so that the locking block 12 and the spindle 13 are prevented from rotating relatively after the locking block 12 compresses the film winding central tube 32, and the position of the locking block 12 can be conveniently adjusted.
Further, the elastic member includes an elastic ring 11, and the locking block 12 and the main shaft 13 are located at an inner ring of the elastic ring 11. As shown in fig. 3, after the two locking blocks 12 are pressed on the locking section 131, the three are simultaneously covered by the elastic ring 11 to be elastically locked, so as to facilitate assembly. Of course, in other embodiments, the elastic member may also be another elastic structure such as a tension spring.
Further, as shown in fig. 3, an installation groove 122 is provided on the outer circumferential surface of the locking block 12, and a part of the structure of the elastic ring 11 is recessed in the installation groove 122, so that the connection stability of the elastic ring 11 on the locking block 12 can be improved.
Further, the locking block 12 is axially abutted against the locking hole 141, so that the locking block 12 and the locking hole 141 move synchronously along the axial direction, the relative movement of the locking block 12 and the sleeve 14 along the axial direction after the locking block 12 presses the film rolling central tube 32 is avoided, and the locking block 12 can provide stable driving force for the film rolling central tube 32. Of course, in other embodiments, the axial positioning of the locking block 12 may also be achieved by providing a limit stop on the spindle 13.
Further, as shown in fig. 2, in the axial direction, a part of the structure of the main shaft 13 axially protrudes from the sleeve 14, so that the main shaft 13 is connected to the driving system 2 through the part of the main shaft that protrudes from the sleeve 14.
In this embodiment, the theory of operation of tight roller rises: the spindle 13 is kept not to rotate, the sleeve 14 drives the locking block 12 to move circumferentially when rotating, meanwhile, under the pushing of the locking section 131, the locking block 12 moves radially, and in the process, the locking block 12 can be ensured to be tightly attached to the locking section 131 under the elastic constraint of the elastic piece.
Except the tension roller, the utility model also provides a roll up membrane device including above-mentioned tension roller, should roll up membrane device and still include actuating system 2, 13 fixed connection of main shaft in actuating system 2's output. Optionally, as shown in fig. 5, the film rolling device further comprises a main support 5 and a positioning assembly 4, and the driving system 2 and the positioning assembly 4 are connected to the main support 5.
The driving system 2 includes a motor 21 and a synchronous wheel set 22, and the motor 21 is connected to the main shaft 13 through the synchronous wheel set 22. More specifically, the main shaft 13 may be connected to the synchronizing wheel set 22 through a shaft set, and the shaft set is connected to the main stand 5 through a bearing, and more specifically, the shaft set includes a rotation-side positioning shaft 23 and a transition rotating shaft 24, which are sequentially connected between the synchronizing wheel set 22 and the main shaft 13. Alternatively, the motor 21 is embodied as an ac motor.
Wherein, locating component 4 includes telescopic cylinder 41, linear guide 42, follow-up side location axle 43 and support body 44, and telescopic cylinder 41 and linear guide 42 connect in main support 5, and support body 44 connects in telescopic cylinder 41's output and sets up on linear guide 42, and follow-up side location axle 43 rotates to be connected in support body 44. The telescopic cylinder 41 can be used for driving the follow-up side positioning shaft 43, and the frame body 44 can linearly move on the linear guide rail 42 along the axial direction. When the film winding device is used, the follow-up side positioning shaft 43 and the tensioning roller 1 can be inserted into the film winding central tube 32 from two ends of the film winding central tube 32 along the axial direction, the follow-up side positioning shaft 43, the tensioning roller 1 and the film winding central tube 32 are coaxially arranged, and the follow-up side positioning shaft 43 and the tensioning roller 1 support the film winding central tube 32.
The working principle of the film rolling device comprises: the tension roller 1 is inserted into the film rolling central tube 32, the motor 21 drives the main shaft 13 of the tension roller 1 to rotate through the synchronous wheel set 22, the sleeve 14 is kept still by means of external force, the locking block 12 is extruded outwards to be attached to the film rolling central tube 32, the external force on the sleeve 14 is removed, the locking block 12 and the film rolling central tube 32 are locked by friction, and the main shaft 13 and the film rolling central tube 32 can be kept relatively static in the circumferential direction. Under the drive of the motor 21, the main shaft 13, the locking block 12 and the film winding central tube 32 keep the same rotating speed for movement, and meanwhile, the follow-up side positioning shaft 43 can follow up on the frame body 44 under the drive of the film winding central tube 32. When the film rolling central tube 32 needs to be detached, the sleeve 14 is firstly kept still by means of external force, the main shaft 13 of the tension roller 1 rotates, the locking block 12 retracts, the locking block 12 and the film rolling central tube 32 are separated, and the tension roller 1 can axially separate from the film rolling central tube 32.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In the description of the present invention, the terms "plurality", and "plural" mean two or more unless otherwise specified.
The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above the utility model provides a tight roller that rises and roll up membrane device introduces in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The tension roller is characterized by comprising a main shaft (13), an elastic piece and a locking block (12);
part of the wall surface of the locking section (131) of the main shaft (13) is arranged in a protruding mode along the radial direction, so that the locking section (131) sequentially forms a cam part (1311) and a retraction part (1312) along the circumferential direction;
the elastic piece is connected between the main shaft (13) and the locking block (12) and provides elastic force to enable the locking block (12) to be pressed on the outer peripheral surface of the locking section (131);
the main shaft (13) can be alternately pressed against the cam part (1311) and the retraction part (1312) during rotation relative to the locking block (12) to change the position of the locking block (12) in the radial direction.
2. The tensioning roller according to claim 1, characterized in that the number of the cam portions (1311) and the number of the retraction portions (1312) are at least two, and the cam portions (1311) and the retraction portions (1312) are arranged in a staggered manner in sequence in the circumferential direction.
3. The tension roller as claimed in claim 1, wherein at least two locking blocks (12) are arranged on the periphery of the locking section (131) in sequence along the circumferential direction.
4. The tension roller as claimed in claim 1, characterized in that the locking block (12) is provided with a friction texture (121) on its outer circumference.
5. The tension roller as claimed in any one of claims 1 to 4, further comprising a sleeve (14), wherein the sleeve (14) is rotatably sleeved outside the main shaft (13), a locking hole (141) is formed in the sleeve (14) in a penetrating manner, and the locking block (12) is arranged in the locking hole (141); the locking block (12) is abutted against the locking hole (141) along the circumferential direction, so that the locking block (12) and the locking hole (141) move synchronously along the circumferential direction, and the locking block (12) can move radially in the locking hole (141); the lock block (12) protrudes radially outward from the sleeve (14) in a state where the lock block (12) is pressed against the cam portion (1311).
6. The tension roller according to claim 5, characterized in that the elastic member comprises an elastic ring (11), and the locking block (12) and the main shaft (13) are located at the inner ring of the elastic ring (11).
7. The tension roller as claimed in claim 6, characterized in that the locking block (12) is provided with an installation groove (122) on its outer circumference, and the elastic ring (11) is partially recessed in the installation groove (122).
8. The tension roller according to claim 5, characterized in that the locking block (12) is axially abutted against the locking hole (141) so as to enable the locking block (12) and the locking hole (141) to move synchronously along the axial direction.
9. The tension roller according to claim 5, characterized in that, in the axial direction, part of the structure of the main shaft (13) protrudes axially beyond the sleeve (14).
10. A film winding device comprising a driving system (2), and further comprising a tension roller according to any one of claims 1 to 9, wherein the main shaft (13) is fixedly connected to an output end of the driving system (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222624286.3U CN218507284U (en) | 2022-09-30 | 2022-09-30 | Tension roller and film winding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222624286.3U CN218507284U (en) | 2022-09-30 | 2022-09-30 | Tension roller and film winding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218507284U true CN218507284U (en) | 2023-02-21 |
Family
ID=85216513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222624286.3U Active CN218507284U (en) | 2022-09-30 | 2022-09-30 | Tension roller and film winding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218507284U (en) |
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2022
- 2022-09-30 CN CN202222624286.3U patent/CN218507284U/en active Active
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