CN108439083B - Reinforcing self-centering electric aluminum coil expansion shaft - Google Patents
Reinforcing self-centering electric aluminum coil expansion shaft Download PDFInfo
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- CN108439083B CN108439083B CN201810470138.6A CN201810470138A CN108439083B CN 108439083 B CN108439083 B CN 108439083B CN 201810470138 A CN201810470138 A CN 201810470138A CN 108439083 B CN108439083 B CN 108439083B
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- circular arc
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- round table
- arc block
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 80
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 230000003014 reinforcing effect Effects 0.000 title claims description 3
- 230000002787 reinforcement Effects 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 239000011888 foil Substances 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 5
- 239000012634 fragment Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/24—Constructional details adjustable in configuration, e.g. expansible
- B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
Landscapes
- Unwinding Webs (AREA)
Abstract
The invention discloses a reinforcement self-centering electric aluminum coil expansion shaft which comprises a fixed side seat, wherein the fixed side seat comprises a positioning round table and fixed arc blocks arranged along the inner circumferential surface of the positioning round table, a floating arc block which forms a circular ring with the fixed arc blocks is arranged on the positioning round table, one end of the floating arc block is rotationally connected with the positioning round table, the other end of the floating arc block is connected with the fixed arc block through a spring, and the spring is in a compressed state. The invention solves the technical problems of inaccurate positioning, deflection and slipping of the electrochemical aluminum coil in the prior art, so as to keep the tension of the aluminum foil belt stable during unreeling, and also solves the technical problems of troublesome assembly and disassembly and long time consumption of the electrochemical aluminum coil, shortens the coil replacement time, improves the working efficiency, has high structural strength and long service life, and can be suitable for high-speed production.
Description
Technical Field
The invention relates to the technical field of printing, in particular to a reinforcement type self-centering alumite roll expansion shaft.
Background
The gold stamping process uses the principle of hot pressing transfer to transfer an aluminum layer in the alumite onto the surface of a printing stock to form a special metal effect, and the main material used for gold stamping is alumite, so gold stamping is also called alumite hot stamping. The web gilding press is mainly used for web positioning holographic gilding process production. The electric aluminum coil on the web gilding press is arranged on an unreeling shaft, the unreeling shaft is provided with a brake block, the brake block generates tiny braking force, the aluminum foil belt keeps small and constant tension during unreeling, and the aluminum foil belt keeps stable tension which is an important precondition for machine operation. The existing unreeling device for electrochemical aluminum coil is a simple spring plate structure, as shown in fig. 1-2, comprising a base 1 'and a superposition shaft 2' arranged on the base 1 ', wherein the base 1' and the superposition shaft 2 'are rotatably arranged on the unreeling shaft 5', two pairs of spring plates 3 'are arranged on the superposition shaft 2', and positioning edges 4 'are arranged on the spring plates 3'. Wherein the diameter of the outer circle of the superposition shaft 2 'is smaller than the diameter of the inner circle of the paper core 7'; when the spring plate 3 ' is in a natural state, the diameter of the outer circle formed by the opposite positioning edges 4 ' is larger than that of the inner circle of the paper core 7 '. During installation, the paper core 7 ' of the electric aluminum coil 6 ' is sleeved on the superposition shaft 2 ', and the positioning edges 4 ' on the elastic sheets 3 ' are deformed inwards and compress the inner hole surface of the paper core 7 ', so that the centering and the expanding of the electric aluminum coil 6 ' are realized through the positioning edges 4 ' on the opposite elastic sheets 3 '. However, the existing simple spring plate structure has the following technical problems:
1. because the gap exists between the stacking shaft 2 'and the inner hole surface of the paper core 7', the stacking shaft 2 'has no centering function, centering is only carried out through the positioning edges 4' on the two pairs of elastic sheets 3 ', however, the elastic sheets 3' belong to thin sheets, the positioning length of the positioning edges 4 'is short, and the excircles formed by the four positioning edges 4' on the two elastic sheets 3 'have four supporting points, so that the centering of the electric aluminum coil 6' is inaccurate, the eccentric and swinging problems of the electric aluminum coil 6 'easily occur, the aluminum foil belt cannot keep stable tension during unreeling, and the installation needs continuous adjustment and verification to ensure that the electric aluminum coil 6' is not eccentric, thereby resulting in long assembly time and labor waste. In addition, because shell fragment 3 ' belongs to the thin slice, the shell fragment elasticity is little, in order not to make the electrochemical aluminium coil 6 ' during installation, the shell fragment 3 ' inwards takes place plastic deformation and become invalid, need very carefully during the installation, so cause electrochemical aluminium coil 6 ' to install and tear down trouble, it is long consuming time, be unfavorable for improving work efficiency, and in actual application, when electrochemical aluminium coil 6 ' installs and removes many times after, shell fragment 3 ' will appear deforming and become invalid, the whole unreeling device of changing is needed after the shell fragment 3 ' warp, cause manufacturing cost high, the maintenance cost is high.
2. Because the elastic sheet 3 ' belongs to a sheet, the elastic force of the elastic sheet 3 ' is small, so that the expansion force of the positioning edges 4 ' on the two pairs of elastic sheets 3 ' on the inner hole surface of the paper core 7 ' is small, the reliable expansion force of the paper core 7 ' cannot be given, the electric aluminum coil 6 ' slips during unreeling, and the aluminum foil belt cannot maintain stable tension during unreeling.
3. The outer diameter of the excircle formed by the four positioning edges 4 'on the two elastic sheets 3' is fixed, and different errors exist in the inner diameter of the paper core 7 'of the different electric aluminum coil 6' during production and manufacture, meanwhile, the elastic force of the elastic sheets 3 'is small, when the inner diameter error of the inner hole of the paper core 7' is larger, the positioning edges 4 'can not expand the inner hole surface of the paper core 7', or the expansion force is too small to cause slipping, and when the inner diameter error of the inner hole of the paper core 7 'is smaller, the inward compression amount of the positioning edges 4' on the elastic sheets 3 'is large, so that the positioning edges 4' are plastically deformed to lose efficacy.
Due to the fact that the problem exists, the roll paper gilding press is poor in registration stability, the registration color code is fuzzy and even lost, the holographic pattern positioning accuracy is out of tolerance, the product quality is unstable, the production is required to be reduced, the production efficiency is low, and the roll paper gilding press is not suitable for high-speed production.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a reinforcement type self-centering electric aluminum coil expansion shaft, solves the technical problems of inaccurate positioning, deflection and slipping of an electric aluminum coil in the prior art, so as to keep the tension of an aluminum foil belt stable during unreeling, and also solves the technical problems of troublesome assembly and disassembly of the electric aluminum coil and long time consumption, shortens the coil replacement time, improves the working efficiency, has high structural strength and long service life, and can be suitable for high-speed production. In order to achieve the above purpose, the invention provides a reinforcement type self-centering electrochemical aluminum coil expansion shaft, which comprises a fixed side seat, wherein the fixed side seat comprises a positioning round table and a fixed circular arc block arranged along the inner circumferential surface of the positioning round table, a floating circular arc block which forms a circular ring with the fixed circular arc block is arranged on the positioning round table, one end of the floating circular arc block is rotationally connected with the positioning round table, the other end of the floating circular arc block is connected with the fixed circular arc block through a spring, and the spring is in a compressed state.
When the invention is in a natural state, the floating circular arc block rotates in the direction of increasing the outer diameter of the circular ring under the action of the elasticity of the spring, namely the other end of the floating circular arc block opens relative to the fixed circular arc block. When an electric aluminum coil is installed, the floating circular arc blocks are pressed to enable the floating circular arc blocks to be close to the fixed circular arc blocks, when the outer diameter of the floating circular arc blocks close to the fixed circular arc blocks is smaller than the outer diameter of the fixed circular arc blocks, a paper core of the electric aluminum coil is sleeved on a circular ring formed by the circular fixed circular arc blocks and the floating circular arc blocks, the end face of the electric aluminum coil leans against the positioning circular table to realize axial positioning of the electric aluminum coil, the outer diameter of the circular ring formed by the fixed circular arc blocks and the floating circular arc blocks is matched with the inner diameter of the paper core, so that the outer circumferential surface of the fixed circular arc blocks realizes the functions of supporting and automatic centering of the electric aluminum coil, and the problem of eccentricity and swinging of the electric aluminum coil cannot occur due to the large positioning area of the fixed circular arc blocks, so that the aluminum foil belt keeps stable tension when the electric aluminum coil is unreeled, and meanwhile, the fixed circular arc blocks realize automatic centering, so that the electric aluminum coil can be automatically centered without adjustment after being sleeved on the circular ring. After the floating circular arc blocks are loosened, the other ends of the floating circular arc blocks are opened and expanded relative to the fixed circular arc blocks under the action of the elasticity of the springs, and the expansion force is reliable, so that slipping cannot occur when the electrochemical aluminum rolls are unreeled, and meanwhile, after the floating circular arc blocks expand the paper cores, the outer circumferential surfaces of the floating circular arc blocks are tightly attached to the surfaces of inner holes of the paper cores, and therefore the floating circular arc blocks play a role in assisting centering.
When the electrochemical aluminum coil is detached relative to the expansion shaft, the floating circular arc blocks are pressed to be close to the fixed circular arc blocks, and the electrochemical aluminum coil can be taken down. Therefore, the invention improves the assembly and disassembly efficiency of the electrochemical aluminum coil, is simple, convenient and quick to assemble and disassemble, saves time and labor, has high structural strength of the fixed arc block, the floating arc block and the spring, has long service life, and is suitable for high-speed production, and the expansion shaft and the electrochemical aluminum coil are reliably installed without reducing production.
The floating circular arc block is opened relative to the fixed circular arc block under the action of spring force, wherein the opening angle of the floating circular arc block relative to the fixed circular arc block can be regulated in a floating way instead of being fixed, so that the paper core inner diameter which can adapt to different errors is increased, the application range of the expansion shaft is improved, and the applicability is stronger.
Further, a gap exists between the end face of the other end of the floating circular arc block and the end face of the fixed circular arc block; a notch is arranged on the positioning round table; a limiting block is connected to the circular arc end face of the floating circular arc block, the limiting block is positioned in the notch, and a gap exists between the limiting block and the side face of the notch close to the fixed circular arc block; the limiting block is connected with a handle. The handle is pressed to enable the limiting block to be close to the fixed arc block, so that the other end of the floating arc block is driven to be close to the fixed arc block, and then the electrochemical aluminum coil is sleeved or detached. The handle is convenient for pressing the floating circular arc blocks, so that the assembly and disassembly efficiency of the electrochemical aluminum coil is further improved, and the operation is simple and convenient. The limiting block is used for limiting the maximum opening degree of the floating circular arc block relative to the fixed circular arc block.
Further, the positioning round table is positioned on one side of the fixed circular arc block, the outer circumferential surface of the positioning round table, which is close to the notch, is connected with a handle, and the two handles are matched for use. The two handles are held by hands, the handle connected with the limiting block is pressed down towards the other handle by hands, so that the limiting block is close to the fixed arc block, the other end of the floating arc block is driven to close to the fixed arc block, and then the electrochemical aluminum coil is sleeved or detached. The two handles are matched for use, which accords with the hand holding of people.
Further, the handle is in threaded connection with the limiting block and locked through the first nut, and the handle is in threaded connection with the positioning round table and locked through the second nut. The detachable connection of the handle and the limiting block and the detachable connection of the handle and the positioning round table are realized, and the assembly and the disassembly are simple and convenient.
Further, the outer circumferential surfaces of the fixed circular arc blocks and the floating circular arc blocks are provided with annular grooves at one end close to the positioning round table. When the end face of the electrochemical aluminum coil leans against the positioning round table, the inner hole edge of the electrochemical aluminum coil is aligned with the annular groove, and the paper core edge of the electrochemical aluminum coil is generally provided with burrs, so that the inner hole edge of the electrochemical aluminum coil is not neat, the arrangement of the annular groove just avoids the burrs of the inner hole of the paper core, the surface of the inner hole of the paper core can be tightly attached to the outer circumferential surfaces of the fixed arc block and the floating arc block, the concentricity of the electrochemical aluminum coil and the fixed arc block and the floating arc block is ensured, the eccentricity of the electrochemical aluminum coil and the expansion shaft is eliminated, and the deflection of the electrochemical aluminum coil is avoided.
Further, a plurality of straight grooves are uniformly distributed on the outer circumferential surfaces of the fixed arc blocks and the floating arc blocks along the circumference. When the electrochemical aluminum coil is sleeved on the circular ring, the sharp edges of the straight grooves bite the surface of the inner hole of the paper core, so that the inner hole of the paper core, the fixed circular arc block and the outer circumferential surface of the floating circular arc block have enough friction force to ensure the connection reliability of the electrochemical aluminum coil and the expansion shaft, and the sliding and loosening of the electrochemical aluminum coil can not occur.
Furthermore, the elastic direction of the spring is consistent with the unreeling direction of the electric aluminum roll, so that the force increasing function can be achieved, the expanding force of the expanding shaft to the electric aluminum roll paper core is further improved, and the electric aluminum roll and the expanding shaft are extremely reliable to install and can be suitable for high-speed production.
Further, a first blind hole is formed in the other end of the floating circular arc block from the end face inwards, and a second blind hole is formed in the fixed circular arc block from the end face inwards correspondingly; one end of the spring is inserted into the first blind hole of the floating circular arc block, and the other end of the spring is inserted into the second blind hole of the fixed circular arc block. So realized the spring for the detachable function of floating circular arc piece and fixed circular arc piece, the internal diameter and the degree of depth of first blind hole and second blind hole need guarantee simultaneously that the spring can not follow first blind hole and second blind hole pine and take off. Further, the quantity of first blind hole and second blind hole is provided with a plurality of to be connected through a plurality of springs between messenger's floating circular arc piece and the fixed circular arc piece, so floating circular arc piece has sufficient expansion force to the refill, guarantees that electrochemical aluminium is rolled up and is expanded tight axle installation reliably and stable.
Further, one end of the floating circular arc block is provided with a first concave station, a shaft hole and a second concave station which are sequentially communicated from the circular arc end face close to the positioning circular table to the other circular arc end face, the positioning circular table is provided with an internal threaded hole at the corresponding shaft hole, the rotating shaft is sequentially connected with the threaded section through a hexagonal head, a cylindrical section and a threaded section to form a stepped structure, one end of the floating circular arc block is rotationally connected with the positioning circular table through the rotating shaft, the threaded section of the rotating shaft is in threaded connection with the internal threaded hole, the cylindrical section is located in the shaft hole, and the hexagonal head is located at the second concave station. The rotating shaft is flexible in structural design, so that the detachable connection of the rotating shaft and the positioning round table is skillfully realized, and the floating circular arc blocks are sleeved on the rotating shaft in a rotatable manner.
Further, the positioning round table is provided with a plurality of lightening holes, and the lightening holes penetrate through the outer circumferential surface and the inner circumferential surface of the positioning round table. The weight reducing hole realizes the weight reducing function of the positioning round table so as to reduce the weight while ensuring the structural strength of the expansion shaft, thereby reducing the load of the unwinding shaft of the gilding press, being beneficial to prolonging the service life of the unwinding shaft, reducing the energy use and being environment-friendly.
Further, the fixed circular arc blocks and the floating circular arc blocks are provided with inner rabbets on the circular arc end faces deviating from the positioning circular truncated cone, and the inner rabbets are positioned on the rabbet edge chamfer angles of the rabbet faces, so that the weight reduction function of the fixed circular arc blocks and the floating circular arc blocks can be achieved. The fixed arc blocks and the floating arc blocks are chamfered on the outer circumferential surface of the arc end surface deviating from the positioning round table, so that the reversing function during installation of the electrochemical aluminum roll is achieved, and meanwhile the inner hole surface of the electrochemical aluminum roll paper core is prevented from being scratched by sharp edges.
Furthermore, both ends of the outer circumferential surfaces of the fixed arc block and the floating arc block are inwards chamfered, so that the electrochemical aluminum coil is conveniently sleeved on the circular ring or taken down from the circular ring, and the assembly and disassembly efficiency of the electrochemical aluminum coil is improved.
Further, the positioning round table is provided with a plurality of bolt holes connected with the base and an outer spigot matched with the base. The base is a base which is arranged on the unreeling shaft of the stamping machine through a bearing, the fixed side seat is positioned with the base through an outer spigot on the positioning round table, and then the base is detachably connected with the base through a bolt hole on the positioning round table, so that the connection between the expansion shaft and the base is realized, and the expansion shaft can rotate along with the unreeling shaft to unreel an electrochemical aluminum coil.
Further, a first arc notch is formed in one end, close to the positioning round table, of the floating arc block, corresponding to the bolt hole; the fixed circular arc piece is equipped with the second circular arc breach in the one end that corresponds the bolt hole position and deviate from the location round platform, be equipped with the through-hole of intercommunication second circular arc breach and corresponding bolt hole on the fixed circular arc piece. In the screws for connecting the fixed side seats and the base, the screw head of one screw is positioned in the first arc notch. The other screw is connected with the base after passing through the through hole of the fixed circular arc block and the bolt hole on the positioning circular truncated cone, the screw head of the screw is positioned in the second circular arc gap, and the first circular arc gap and the second circular arc gap improve enough operation space for assembling and disassembling the screw.
The invention has the beneficial effects that: the invention has the advantages of accurate centering, no eccentric and swinging problems of the alumite roll, no adjustment during installation, time and labor saving, simple, convenient and quick assembly and disassembly, high structural strength, long service life, suitability for paper core inner diameters with different errors, stronger usability, reliable installation of the expansion shaft and the alumite roll, and no sliding and loosening of the alumite roll, thereby being suitable for high-speed production.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a perspective view of the prior art.
Fig. 2 is a state of the art usage diagram.
Fig. 3 is a perspective view of the expansion shaft of the present invention.
Fig. 4 is a perspective view of fig. 3 rotated by a certain angle.
Fig. 5 is a perspective view of the fixed side seat of the present invention.
Fig. 6 is a perspective view of fig. 5 rotated by a certain angle.
Fig. 7 is a perspective view of a floating circular arc block of the present invention.
Fig. 8 is a perspective view of the shaft of the present invention.
Fig. 9 is a perspective view of the invention assembled with an alumite roll.
Fig. 10 is a perspective view of fig. 9 rotated by a certain angle.
The above reference numerals:
1 ' base, 2 ' overlapped shaft, 3 ' spring plate, 4 ' locating edge, 5 ' unreeling shaft, 6 ' electrochemical aluminium coil, 7 ' paper core,
the positioning round table is 1, the fixed arc block is 2, the floating arc block is 3, the spring is 4, the rotating shaft is 5, the limiting block is 6, the handle is 7, the nut is 8, the screw is 9, the electrochemical aluminum roll is 10, the paper core is 11, the base is 12, and the unreeling shaft is 13.
101 lightening holes, 102 outer rabbets, 103 notches, 104 inner threaded holes, 105 bolt holes, 201 second circular arc notches, 202 second blind holes, 203 through holes, 301 straight grooves, 302 annular grooves, 303 first circular arc notches, 304 inner rabbets, 305 second concave tables, 306 shaft holes, 307 second concave tables, 50 hexagonal heads, 51 cylindrical sections and 52 threaded sections.
Detailed Description
The invention is further described below with reference to the drawings, but is not intended to limit the scope of the invention.
Example 1
As shown in fig. 3-10, the reinforcement type self-centering alumite rolling expansion shaft provided by the invention comprises a fixed side seat, wherein the fixed side seat comprises a positioning round table 1 and a fixed circular arc block 2 arranged along the inner circumferential surface of the positioning round table 1, and the positioning round table 1 and the fixed circular arc block 2 are of an integrated structure. The positioning round table 1 is provided with a floating circular arc block 3 which forms a circular ring with the fixed circular arc block 2, one end of the floating circular arc block 3 is rotationally connected with the positioning round table 1 through a rotating shaft 5, the other end of the floating circular arc block is connected with the fixed circular arc block 2 through a spring 4, and the spring 4 is in a compressed state so that under the action of the elasticity of the spring 4, the other end of the floating circular arc block 3 is opened relative to the fixed circular arc block 2.
When the electric aluminum coil 10 is used, the floating circular arc blocks 3 are pressed, so that the floating circular arc blocks 3 are close to the fixed circular arc blocks 2, the paper core 11 of the electric aluminum coil 10 is sleeved on the circular ring, the positioning circular table 1 realizes the axial positioning of the electric aluminum coil 10, the fixed circular arc blocks 2 realize the supporting and automatic centering functions of the electric aluminum coil 1, and the centering is accurate, so that the eccentric and swinging problems of the electric aluminum coil 10 can not occur. After the electrochemical aluminum coil 10 is sleeved on the circular ring, the floating circular arc block 3 is loosened, the floating circular arc block 3 expands the inner hole surface of the paper core 11 under the action of the spring 4, and the reliable installation of the expansion shaft and the electrochemical aluminum coil 10 is ensured.
The direction of the spring force of the spring 4 is consistent with the unreeling direction of the alumite roll 10, as indicated by the arrow in fig. 9. To play a role of increasing force, and further improve the expanding force of the expanding shaft to the paper core 11 of the alumite roll 10.
A gap exists between the end face of the other end of the floating circular arc block 3 and the end face of the fixed circular arc block 2; a notch 103 is formed in the positioning round table 1; the arc end face of the floating arc block 3 is connected with a limiting block 6, wherein the limiting block 6 and the floating arc block 3 form an integrated structure. The limiting block 6 is positioned in the notch 103, wherein a gap exists between the limiting block 6 and the side surface of the notch 103 close to the fixed arc block 2; the end face of the fixed circular arc block 2 is flush with the side face of the notch 103, and the above clearance exists so that the floating circular arc block 3 has a space for pressing down and opening, and the size of the specific clearance is determined according to the factors such as the inner diameter of the inner hole of the actual paper core, the required expansion force and the like.
The radians of the fixed arc block 2 and the floating arc block 3 are smaller than 180 degrees, so that gaps exist between the two ends of the fixed arc block 2 and the floating arc block 3. Preferably, the fixed circular arc block 2 and the floating circular arc block 3 are formed by splitting a cylinder along a central line.
The limiting block 6 is connected with a handle 7 in a threaded mode and is locked through a nut 8. The limiting block 6 is used for limiting the maximum opening degree of the floating circular arc blocks 3 relative to the fixed circular arc blocks 2. The handle 7 is used for realizing the quick pressing function of the floating circular arc block 3 so as to improve the assembly and disassembly efficiency of the electrochemical aluminum coil 10, and the assembly and disassembly are simple, convenient and quick, and are time-saving and labor-saving.
The positioning round table 1 is positioned on one side of the fixed circular arc block 2, is in threaded connection with a handle 7 on the outer circumferential surface close to the notch 103, and is locked by a nut 8, wherein the two handles 8 are matched for use. The two handles 8 are held by hands, so that the floating circular arc blocks 3 are pressed, wherein the two handles 8 are matched for use, and the hand holding of a person is met.
The other end of the floating circular arc block 3 is provided with a first blind hole inwards from the end face, and correspondingly, the fixed circular arc block 2 is provided with a second blind hole 202 inwards from the end face; one end of the spring 4 is inserted into the first blind hole of the floating circular arc block 3, and the other end is inserted into the second blind hole 202 of the fixed circular arc block 2. The number of the first blind holes and the second blind holes 202 is plural, and in this embodiment, the number of the first blind holes and the second blind holes 202 is three, that is, the number of the springs 4 is three. The use of a plurality of springs 4 ensures that there is sufficient tension to expand the inner bore of the paper core 11.
One end of the floating circular arc block 3 is provided with a first concave table 307, a shaft hole 306 and a second concave table 305 which are sequentially communicated from the circular arc end face close to the positioning circular table 1 to the other circular arc end face, the positioning circular table 1 is provided with an internal threaded hole 104 at the position corresponding to the shaft hole 306, the rotating shaft 5 is sequentially connected with the hexagonal head 50, the cylindrical section 51 and the threaded section 52 to form a stepped structure, and one end of the floating circular arc block 3 is rotationally connected with the positioning circular table 1 through the rotating shaft 5, wherein the threaded section 52 of the rotating shaft 1 is in threaded connection with the internal threaded hole 104, the cylindrical section 51 is positioned in the shaft hole 306, and the hexagonal head 50 is positioned at the position of the second concave table 305.
The positioning round table 1 is provided with a plurality of bolt holes 105 connected with the base 12 and an outer spigot 102 matched and installed with the base 12. The base 12 is the base 12 which is arranged on the unreeling shaft 13 of the stamping machine through a bearing, the positioning with the base 12 is realized through the outer spigot 102 on the positioning round table 1, and then the base 12 is detachably connected through the bolt hole 105 on the positioning round table 1, so that the connection between the expanding shaft and the base is realized, and the expanding shaft can rotate along with the unreeling shaft 13, so that unreeling of the electrochemical aluminum coil 10 is realized.
The floating circular arc block 3 is provided with a first circular arc notch 303 at one end corresponding to the bolt hole 105 and close to the positioning circular table 1; the fixed circular arc piece 3 is equipped with the second circular arc breach 201 in the one end that corresponds bolt hole 105 position and deviate from location round platform 1, be equipped with the through-hole 203 of intercommunication second circular arc breach 201 and corresponding bolt hole 105 on the fixed circular arc piece 2.
Example two
On the basis of the first embodiment, the outer circumferential surfaces of the fixed circular arc block 2 and the floating circular arc block 3 are provided with an annular groove 302 at one end close to the positioning round table 1. The annular groove 302 avoids the paper core inner hole burrs of the electrochemical aluminum coil 10, and ensures that the surface of the paper core 11 inner hole can be tightly attached to the outer circumferential surfaces of the fixed circular arc blocks 2 and the floating circular arc blocks 3.
Example III
On the basis of the first embodiment, a plurality of straight grooves 301 are uniformly distributed on the outer circumferential surfaces of the fixed circular arc blocks 2 and the floating circular arc blocks 3 along the circumference. When the alumite roll 10 is sleeved on the circular ring, the sharp edges of the straight grooves 301 bite the surface of the inner hole of the paper core 11, so that the inner hole of the paper core 11, the fixed circular arc block 2 and the outer circumferential surface of the floating circular arc block 3 have enough friction force to ensure the connection reliability of the alumite roll 10 and the expansion shaft of the invention, and the alumite roll 10 cannot slide and loosen, so that the alumite roll is suitable for high-speed production.
Example IV
On the basis of the first embodiment, the positioning round table 1 is provided with a plurality of lightening holes 101, and the lightening holes 101 penetrate through the outer circumferential surface and the inner circumferential surface of the positioning round table 1. The weight reducing hole 101 realizes the weight reducing function of the positioning round table 1 so as to reduce the weight while ensuring the structural strength of the expansion shaft of the invention, thereby reducing the load of the unwinding shaft operation of the gilding press, being beneficial to prolonging the service life of the unwinding shaft, reducing the energy use and being environment-friendly.
Example five
On the basis of the first embodiment, the fixed circular arc block 2 and the floating circular arc block 3 are provided with inner spigots 304 on the circular arc end faces deviating from the positioning circular table 1, and the inner spigots 304 are positioned on spigot edges and chamfer angles of the spigot faces. The outer circumferential surfaces of the fixed circular arc blocks 2 and the floating circular arc blocks 3, which are away from the circular arc end surfaces of the positioning circular table 1, are chamfered. Both ends of the outer circumferential surfaces of the fixed arc block 2 and the floating arc block 3 are chamfered inwards. So as to facilitate the sleeving or taking off of the electrochemical aluminum coil 10 on or from the circular ring, and improve the assembly and disassembly efficiency of the electrochemical aluminum coil 10.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The reinforcing self-centering electric aluminum coil expansion shaft comprises a fixed side seat, wherein the fixed side seat comprises a positioning round table and fixed arc blocks arranged along the inner circumferential surface of the positioning round table, and the positioning round table is provided with floating arc blocks which form a circular ring with the fixed arc blocks;
the elastic direction of the spring is consistent with the unreeling direction of the electrochemical aluminum coil;
a gap exists between the end face of the other end of the floating circular arc block and the end face of the fixed circular arc block; a notch is arranged on the positioning round table; a limiting block is connected to the circular arc end face of the floating circular arc block, the limiting block is positioned in the notch, and a gap exists between the limiting block and the side face of the notch close to the fixed circular arc block; the limiting block is connected with a handle;
the positioning round table is positioned on one side of the fixed circular arc block, the outer circumferential surface of the positioning round table, which is close to the notch, is connected with the handles, and the two handles are matched for use;
the one end of floating circular arc piece is equipped with first concave station, shaft hole and second concave station by being close to the circular arc terminal surface of location round platform to another circular arc terminal surface intercommunication ground in proper order, the location round platform is equipped with the internal thread hole in corresponding shaft hole department, and the pivot is connected gradually by hexagon head, cylinder section and screw thread section and is constituteed the ladder structure, the one end and the location round platform of floating circular arc piece are rotated through the pivot and are connected, and wherein the screw thread section and the internal thread hole threaded connection of pivot, cylinder section are located the shaft hole, and the hexagon head is located second concave station department.
2. The reinforcement self-centering alumite rolling expansion shaft according to claim 1, wherein the outer circumferential surfaces of the fixed circular arc blocks and the floating circular arc blocks are provided with annular grooves at one end close to the positioning circular table.
3. The reinforcement self-centering alumite rolling expansion shaft according to claim 1, wherein a plurality of straight grooves are uniformly distributed on the outer circumferential surfaces of the fixed circular arc blocks and the floating circular arc blocks along the circumference.
4. The reinforcement self-centering alumite rolling expansion shaft according to claim 1, wherein a first blind hole is formed in the other end of the floating circular-arc block from the end face inwards, and a second blind hole is formed in the fixed circular-arc block from the end face inwards correspondingly; one end of the spring is inserted into the first blind hole of the floating circular arc block, and the other end of the spring is inserted into the second blind hole of the fixed circular arc block.
5. The reinforcement self-centering alumite roll expansion shaft according to claim 1, wherein the positioning round table is provided with a plurality of lightening holes, and the lightening holes penetrate through the outer circumferential surface and the inner circumferential surface of the positioning round table.
6. The reinforcement self-centering alumite rolling expansion shaft according to claim 1, wherein the positioning round table is provided with a plurality of bolt holes connected with a base and an outer spigot matched with the base, and the base is arranged on a unreeling shaft of a gilding press through a bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810470138.6A CN108439083B (en) | 2018-05-16 | 2018-05-16 | Reinforcing self-centering electric aluminum coil expansion shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810470138.6A CN108439083B (en) | 2018-05-16 | 2018-05-16 | Reinforcing self-centering electric aluminum coil expansion shaft |
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| CN108439083A CN108439083A (en) | 2018-08-24 |
| CN108439083B true CN108439083B (en) | 2024-04-02 |
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| CN201810470138.6A Active CN108439083B (en) | 2018-05-16 | 2018-05-16 | Reinforcing self-centering electric aluminum coil expansion shaft |
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| CN111731901A (en) * | 2020-06-20 | 2020-10-02 | 徐欣怡 | Batching device with cleaning function for non-woven fabric processing |
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| CN208378097U (en) * | 2018-05-16 | 2019-01-15 | 湖南福瑞印刷有限公司 | A kind of self-centering anodized aluminium volume expansion shaft of boosting-type |
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| CN200974725Y (en) * | 2006-07-17 | 2007-11-14 | 马恒庆 | High-accuracy winding expanding shaft |
| CN101955088A (en) * | 2009-07-16 | 2011-01-26 | 上海格林赛高新材料有限公司 | Strip expanding drum device |
| CN201525670U (en) * | 2009-09-29 | 2010-07-14 | 天津市万德包装印制有限公司 | Spring expanding sleeve for expanding diameter of air shaft |
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| CN108439083A (en) | 2018-08-24 |
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