CN111577858A - Width adjusting device - Google Patents
Width adjusting device Download PDFInfo
- Publication number
- CN111577858A CN111577858A CN202010532331.5A CN202010532331A CN111577858A CN 111577858 A CN111577858 A CN 111577858A CN 202010532331 A CN202010532331 A CN 202010532331A CN 111577858 A CN111577858 A CN 111577858A
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- China
- Prior art keywords
- screw rod
- screw
- gear
- sliding block
- adjustment device
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- 230000008878 coupling Effects 0.000 claims abstract description 21
- 238000010168 coupling process Methods 0.000 claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 claims abstract description 21
- 230000003287 optical effect Effects 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
- F16H37/124—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and reciprocating motion
- F16H37/126—Guiding mechanism using levers combined with gearings for straight line output movement, e.g. by using gears or pulleys with ratio 2:1
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a width adjusting device, wherein a bush is arranged at the same position in each bracket, one of the brackets is externally connected with a gear box, the screw rod component is transversely arranged between the bushings in an inserting way, the screw rod assembly comprises an even number of couplers, two sides of each coupler are respectively provided with a screw rod, the screw rod at one side of the coupling is connected with a gear set in a cavity in a gear box body of the gear box, the number of pairs of the gears in the gear set is one less than the total number of the screw rods on one side of the coupler, the thread directions of the adjacent screw rods in the screw rod assembly are opposite, the sliding block assembly comprises a sliding block frame, a linear bearing is arranged outside the sliding block frame and connected with the sliding block frame, a threaded hole is arranged in each sliding block frame, each sliding block frame is connected with one screw rod through a threaded hole, and the optical axis penetrates through the linear bearing. The invention realizes the modularization and automation of parts, can meet various application occasions, and has convenient maintenance and higher accuracy.
Description
Technical Field
The invention belongs to the packaging industry and relates to a broadband adjusting device.
Background
In recent years, the automated production in China is developed at a high speed, and the width adjusting device is widely applied to automated production machinery. The structure is optimized, the width adjusting precision is improved, the modularization and the automation of the structure are realized, and the production efficiency and the automation degree can be obviously improved.
The existing width adjusting mechanism has the defects of low precision, various component parts, low width adjusting degree and few grouping number, so that the maintenance is difficult, the parts are difficult to supplement after being damaged, the applicable occasions are few, and the modularization and the automation are difficult to realize.
Disclosure of Invention
1. The technical problem to be solved is as follows:
the existing width adjusting mechanism has the defects of low precision, various component parts and difficult maintenance.
2. The technical scheme is as follows:
in order to solve the above problems, the invention provides a width adjusting device, which comprises two brackets, wherein the same position in each bracket is provided with a bushing, one of the brackets is externally connected with a gear box, a screw rod assembly is transversely arranged between the bushings in an inserting way, the screw rod assembly comprises an even number of couplings, two sides of each coupling are respectively provided with a screw rod, the screw rod at one side of the coupling is connected with a gear set in a cavity in a gear box body of the gear box, the number of teeth in the gear set is one less than the total number of the screw rods at one side of the coupling, the thread directions between the adjacent screw rods in the screw rod assembly are opposite, the slide block assembly comprises a slide block frame, a linear bearing is arranged outside the slide block frame and connected with the slide block frame, a threaded hole is arranged in each slide block frame, and each slide block, the optical axis passes through the linear bearing.
The novel slider is characterized in that the number of the screws is two, namely a left-handed screw and a right-handed screw, the number of the screw holes of the slider frame is also two, namely a left-handed screw hole and a right-handed screw hole, the left-handed screw hole is connected with the left-handed screw in the slider frame, and the right-handed screw hole is connected with the right-handed screw.
The pitch between the screws shown is equal.
The gear box body of the gear box also comprises a cavity, a pair of bevel gears is arranged in the cavity and connected with the input shaft, and the bevel gears are connected with the gear set and provide power for the rotation of the internal gears of the gear set.
The pair of bevel gears is formed by meshing a first bevel gear and a second bevel gear.
Each pair of gears in the gear set is formed by meshing a first gear and a second gear.
The shaft coupling is 2, and the screw rod quantity is 4.
The shaft coupling is 4, and the screw rod quantity is 8.
Two slider frames close to the coupler are fixed and cover the coupler.
The gear set in the gear is provided with three pairs of gears.
3. Has the advantages that:
the invention realizes the modularization and automation of parts, can meet various application occasions, and has convenient maintenance and higher accuracy.
Drawings
Fig. 1 is a plan view of the width adjustment device.
FIG. 2 is a schematic representation of a slider assembly.
FIG. 3 is a schematic representation of a lead screw assembly.
FIG. 4 is a schematic representation of the internal structure of the gearbox.
FIG. 5 shows a gear distribution in a cavity of a gearbox.
Description of reference numerals: 1. a support; 2. a bushing; 3. a screw assembly; 4. an optical axis; 5. a slider assembly; 6. a gear case; 7. a slider frame; 8. a linear bearing; 9. a first threaded hole in embodiment 1; 10. a second threaded hole in embodiment 1; 11. the third threaded hole in embodiment 1; 12. a fourth threaded hole in embodiment 1; 13. the first left-handed screw of example 1; 14. the first right-hand screw of example 1; 15. the second left-handed screw in example 1; 16. the second left-handed screw in example 1; 17. a coupling; 18 a gearbox housing; 19 an input shaft; 20. a first bevel gear; 21. a second bevel gear; a first gear; 25. a second gear.
Detailed Description
The present invention will be described in detail below with reference to the drawings and examples.
As shown in FIG. 1, the present invention provides a width adjusting device, which comprises two brackets 1, wherein bushings 2 are arranged at the same positions in each bracket 1, one of the brackets 1 is externally connected with a gear box 6, a screw assembly 3 is transversely arranged between the bushings 2 in an inserting manner, the screw assembly 2 comprises an even number of couplings 17, two sides of each coupling 17 are respectively provided with a screw, the screw at one side of the coupling 17 is connected with a gear set in a cavity in a gear box body 18 of the gear box 6, the number of pairs of gears 23 in the gear set is one less than the total number of screws at one side of the coupling 17, the rotation directions of adjacent screws in the screw assembly 2 are opposite, a slider assembly 5 comprises a slider frame 7, a linear bearing 8 is arranged outside the slider frame 7 and connected with the slider frame 7, a threaded hole is arranged in each slider frame 7, each sliding block frame 8 is connected with one screw rod through a threaded hole, the threaded holes of the sliding block frames on the same-steering threaded rods are in the same direction, and the optical axis 4 penetrates through the linear bearing 8.
When the screw assembly is used, the input shaft 19 transmits torque, the pair of bevel gears are meshed by the first bevel gear 20 and the second bevel gear 21 and transmitted to the gear set through the bevel gears, and the torque is transmitted to each screw rod through the plurality of pairs of gear sets, so that the rotating speeds of the screw rods are sequentially increased; the screw rotation degrees of each pair of screw rod both ends are opposite, and when the screw rod was rotatory, slider assembly 5 on the screw rod was relative and move in opposite directions, and the precision has been guaranteed to the same pitch of screw rod, and linear bearing 8 between optical axis 4 and the slider assembly 5 has guaranteed to slide, in addition the screw hole direction of the slider frame on the threaded rod that turns to with is the same, and when the mechanism normally operated, slider assembly 5 on the lead screw assembly 3, to control the expansion or close proportionally, realized width control's purpose.
Due to the universality and modularization of parts, the parts can be made of a double-screw four-slider frame, a four-screw eight-slider frame or even a six-screw twelve-slider frame so as to meet different requirements in actual production. The method improves the precision and automation of width adjustment, realizes the modularization of the mechanism, and greatly improves the working efficiency. The number of screws here is the number of screws on the same side of the coupling 17.
Example 1
The structure of the double-screw four-frame.
As shown in 3, the lead screw assembly 2 includes 2 shaft couplings 17, there are two screws on one side of shaft coupling 17, four screws altogether, are respectively: first left-handed screw 13, second right-handed screw 14, second left-handed screw 15, second right-handed screw, it can be seen that adjacent screw thread direction is also different, as shown in fig. 2, there are 4 slider frames 7, wherein first screw hole 9 and fourth screw hole are left-handed screw holes, second screw hole 10 and second screw hole 11 are right-handed screw holes, slider frame 7 with left-handed screw hole is connected with left-handed screw, and slider frame 7 with right-handed screw hole is connected with right-handed screw.
The left-handed screw is connected with a slide block frame provided with a left-handed threaded hole, the right-handed screw is connected with a slide block frame provided with a right-handed threaded hole, and the slide block frames 7 on the two sides of the coupler 7 are unfolded or folded along with forward transmission or reverse rotation of the gears in the gear set.
The adjacent two-stage rotation degrees of the screw rods in the screw rod assembly 3 are opposite, so that the difference of the rotation directions of all stages caused by gear transmission can be eliminated; the screw rotation degrees of the two ends of each pair of screws are opposite, and the precision is ensured by the same screw pitch of the screws.
Example 2
The structure of four-screw eight frames. The lead screw component 2 comprises 4 couplers 17, wherein four screws are arranged on one side of each coupler 17, and the total number of the screws is eight. Each screw rod is connected with a slide block frame, the slide block frame 7 with a left-handed threaded hole is connected with the left-handed screw rod, and the slide block frame 7 with a right-handed threaded hole is connected with the right-handed screw rod. Four screws on one side of the coupler, which is close to the gear box 6, are connected with a gear set, 1 shaft, 2 shafts, 3 shafts and 4 shafts are numbered for the four screws, the gear set is provided with three pairs of gears, 1 shaft is connected with 2 shafts and a pair of gears, 2 shafts are connected with 3 shafts and a pair of gears, and 3 shafts are connected with 4 shafts and a pair of gears.
The power is input from the input shaft 19 to drive the bevel gears to rotate so as to drive the three pairs of gears to rotate, the three pairs of gears transmit torque to the screw rods connected with the three pairs of gears, so that the rotating speeds of the 1 shaft, the 2 shaft, the 3 shaft and the 4 shaft are increased progressively at one time, then the expanding speeds of the sliding block frames 7 are different, the innermost speed is slower, and the others are faster in sequence.
The adjacent two-stage rotation degrees of the screw rods in the screw rod assembly 3 are opposite, so that the difference of the rotation directions of all stages caused by gear transmission can be eliminated; the screw rotation degrees of the two ends of each pair of screws are opposite, and the precision is ensured by the same screw pitch of the screws.
In the case of the example 3, the following examples are given,
on the basis of embodiment 2, the two slider frames 7 adjacent to the coupling 17 are fixed, covering the coupling 17.
The two fixed sliding blocks 7 are part of the width adjustment, the other sliding blocks move, the two sliding blocks 7 close to the coupler 17 are not understood, the width is adjusted when the two sliding blocks are changed, and the limiting function can be achieved.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A width adjustment device, includes two supports (1), its characterized in that: the same position in each support (1) is provided with a bushing (2), one support (1) is externally connected with a gear box (6), a screw rod assembly (3) is transversely arranged between the bushings (2) in a penetrating manner, the screw rod assembly (2) comprises an even number of couplings (17), two sides of each coupling (17) are respectively provided with a screw rod, the screw rod on one side of each coupling (17) is connected with a gear set in a cavity in a gear box body (18) of the gear box (6), the number of pairs of gears (23) in the gear sets is less than the total number of the screw rods on one side of each coupling (17), the adjacent screw rods in the screw rod assembly (2) are opposite in thread direction, each sliding block assembly (5) comprises a sliding block frame (7), and a linear bearing (8) is arranged outside each sliding block frame (7) and connected with the sliding block frame (7), every be equipped with the screw hole in slider frame (7), connect on every slider frame (8) through screw hole and a screw rod, the same screw hole direction that turns to the slider frame on the threaded rod is the same, and linear bearing (8) are passed in optical axis (4).
2. The width adjustment device of claim 1, wherein: the novel screw rod structure is characterized in that the number of the screw rods is two, namely a left-handed screw rod and a right-handed screw rod, the number of the threaded holes of the slider frame (7) is also two, namely a left-handed threaded hole and a right-handed threaded hole, the left-handed threaded hole is connected with the left-handed screw rod, and the right-handed threaded hole is connected with the right-handed screw rod.
3. The width adjustment device of claim 1, wherein: the pitch between the screws shown is equal.
4. The width adjustment device of claim 1, wherein: the gearbox is characterized in that a cavity is further formed in a gearbox body (18) of the gearbox (6), a pair of bevel gears are arranged in the cavity and connected with an input shaft (19), and the bevel gears are connected with the gear set (24) and provide power for rotation of the gears in the gear set (24).
5. The width adjustment device of claim 4, wherein: the pair of bevel gears is formed by meshing a first bevel gear (20) and a second bevel gear (21).
6. The width adjustment device of any one of claims 1-5, wherein: each pair of gears in the gear set is formed by meshing a first gear (24) and a second gear (24).
7. The width adjustment device as defined in any one of claims 1-5, wherein: the number of the couplers (17) is two, and the number of the screws is 4.
8. The width adjustment device of any one of claims 1-5, wherein: the number of the couplers (17) is 4, and the number of the screws is 8.
9. The width adjustment device of claim 8, wherein: two slider frames (7) close to the coupler (17) are fixed and cover the coupler (17).
10. The width adjustment device of claim 8, wherein: the gear set in the gear box (6) is provided with three pairs of gears (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010532331.5A CN111577858A (en) | 2020-06-12 | 2020-06-12 | Width adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010532331.5A CN111577858A (en) | 2020-06-12 | 2020-06-12 | Width adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111577858A true CN111577858A (en) | 2020-08-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010532331.5A Pending CN111577858A (en) | 2020-06-12 | 2020-06-12 | Width adjusting device |
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| Country | Link |
|---|---|
| CN (1) | CN111577858A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539806A (en) * | 2012-02-16 | 2012-07-04 | 哈尔滨工业大学（威海） | Multi-channel liquid sampling equivalent distancing device |
| CN203527330U (en) * | 2013-11-25 | 2014-04-09 | 山西新华化工有限责任公司 | Mechanical bidirectional pressing mechanism |
| CN103939555A (en) * | 2014-04-15 | 2014-07-23 | 北京航天自动控制研究所 | Multi-lead-screw parallel drive device |
| CN207183539U (en) * | 2017-07-19 | 2018-04-03 | 广东晖速通信技术股份有限公司 | A kind of multifrequency electrical tilt antenna is driven switching system |
| CN107906178A (en) * | 2017-11-26 | 2018-04-13 | 卢光贤 | A kind of small-sized Width adjusting device |
| CN212564288U (en) * | 2020-06-12 | 2021-02-19 | 南京恒昌包装机械有限公司 | Width adjusting device |
-
2020
- 2020-06-12 CN CN202010532331.5A patent/CN111577858A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539806A (en) * | 2012-02-16 | 2012-07-04 | 哈尔滨工业大学（威海） | Multi-channel liquid sampling equivalent distancing device |
| CN203527330U (en) * | 2013-11-25 | 2014-04-09 | 山西新华化工有限责任公司 | Mechanical bidirectional pressing mechanism |
| CN103939555A (en) * | 2014-04-15 | 2014-07-23 | 北京航天自动控制研究所 | Multi-lead-screw parallel drive device |
| CN207183539U (en) * | 2017-07-19 | 2018-04-03 | 广东晖速通信技术股份有限公司 | A kind of multifrequency electrical tilt antenna is driven switching system |
| CN107906178A (en) * | 2017-11-26 | 2018-04-13 | 卢光贤 | A kind of small-sized Width adjusting device |
| CN212564288U (en) * | 2020-06-12 | 2021-02-19 | 南京恒昌包装机械有限公司 | Width adjusting device |
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