CN108312696B - Heating treatment box for film printing stock and coiled material film thermal shrinkage machine - Google Patents
Heating treatment box for film printing stock and coiled material film thermal shrinkage machine Download PDFInfo
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- CN108312696B CN108312696B CN201810246957.2A CN201810246957A CN108312696B CN 108312696 B CN108312696 B CN 108312696B CN 201810246957 A CN201810246957 A CN 201810246957A CN 108312696 B CN108312696 B CN 108312696B
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- 239000000463 material Substances 0.000 title claims abstract description 93
- 238000007639 printing Methods 0.000 title claims abstract description 90
- 238000010438 heat treatment Methods 0.000 title claims abstract description 51
- 238000007599 discharging Methods 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims description 50
- 230000005540 biological transmission Effects 0.000 claims description 39
- 238000013016 damping Methods 0.000 claims description 24
- 230000001360 synchronised effect Effects 0.000 claims description 13
- 230000003068 static effect Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000002829 reductive effect Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 230000002441 reversible effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000007650 screen-printing Methods 0.000 abstract description 4
- 239000010408 film Substances 0.000 description 41
- 238000001035 drying Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/12—Machines with auxiliary equipment, e.g. for drying printed articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2200/00—Printing processes
- B41P2200/40—Screen printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/10—Screen printing machines characterised by their constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/50—Screen printing machines for particular purposes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Advancing Webs (AREA)
Abstract
The invention discloses a heating treatment box for film printing materials and a coiled material film thermal shrinkage machine, wherein the heating treatment box comprises a box body, a heating component and a conveying component, the conveying component is arranged in the box body and comprises a feeding guide roller positioned at a feeding hole of the box body, a discharging guide roller positioned at a discharging hole of the box body and a conveying roller arranged between the feeding guide roller and the guide roller, the conveying roller comprises an upper conveying roller arranged at the upper part of the box body and a lower conveying roller arranged at the lower part of the box body, the film printing materials enter the box body by bypassing the feeding guide roller at the feeding hole, alternately bypass the upper conveying roller and the lower conveying roller in the box body along the up-down direction, and finally bypass the discharging guide roller at the discharging hole to leave the box body. The heating treatment box can be used as terminal heating treatment equipment of a screen printing production line of film printing materials, and also can be used as intermediate heating treatment equipment on the production line.
Description
Technical Field
The invention relates to screen printing equipment, in particular to a heating treatment box for film printing stock and a coiled material film thermal shrinkage machine.
Background
In the process of printing a film-like printing material by using a screen printer, it is necessary to heat the film-like printing material, such as heat shrinkage pretreatment before printing or drying treatment after printing. The existing devices related to the heating treatment of thin film printing materials are in a shape like a Chinese character 'Hui', for example, the utility model patent with an authorized bulletin number of CN206568697U announces a full-automatic silk-screen production device, a Hui-type oven is arranged on the device, a material receiving device is arranged at the center of the Hui-type oven, a feeding bin, an exhaust device, a first diversion bin and a U-type energy-saving heating bin are arranged around the Hui-type oven, and when the device works, the thin film printing materials to be treated enter from a feeding port, are finally rolled on the material receiving device after being treated by the exhaust device, the first diversion bin and the U-type energy-saving heating bin.
However, the oven has the following problems in actual operation:
Because the film printing stock after the heating treatment is directly rolled up on the material collecting device in the oven, when the heating treatment operation of the film printing stock is only an initial or middle flow in the whole production process and the subsequent processing treatment is needed to be continued after the heating treatment is finished, such as the thermal shrinkage pretreatment before printing and the secondary printing after drying.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a heating treatment box for film printing materials, which can be used as terminal heating treatment equipment of a film printing material screen printing production line or intermediate heating treatment equipment on the production line.
The invention also provides a coiled material film thermal shrinkage machine applying the heating treatment box for the film printing materials.
The technical scheme for solving the technical problems is as follows:
The heating treatment box for the film printing stock comprises a box body, a heating component and a conveying component for conveying the film printing stock, wherein,
The conveying assembly is arranged in the box body and comprises a feeding guide roller positioned at the feed inlet of the box body, a discharging guide roller positioned at the discharge outlet of the box body and a conveying roller arranged between the feeding guide roller and the feeding guide roller, wherein the conveying roller comprises an upper row of conveying rollers arranged on the upper part of the box body and a lower row of conveying rollers arranged on the lower part of the box body, the feeding guide roller which bypasses the feed inlet of the film printing material enters the box body, the upper row of conveying rollers and the lower row of conveying rollers are alternately bypassed in the box body along the up-down direction, and the discharging guide roller which bypasses the discharge outlet is separated from the box body.
Preferably, the device further comprises a driving mechanism for driving the feeding guide roller, the discharging guide roller and the conveying roller to rotate at the same angular speed, wherein the printing material sequentially bypasses the feeding guide roller, the conveying roller and the discharging guide roller; a damping transmission mechanism is arranged between the conveying roller and the driving mechanism, and comprises a driving piece and a driven piece which can rotate relatively, wherein the driving piece is arranged on a power output shaft of the driving mechanism, and the driven piece is arranged on the conveying roller; the driving member and the driven member synchronously rotate when the driving force between the driving member and the driven member is smaller than the maximum damping driving force F, and the driving member and the driven member relatively slide when the driving force between the driving member and the driven member is larger than the maximum damping driving force F.
Preferably, the upper-row conveying rollers and the lower-row conveying rollers are uniformly arranged in a staggered manner in the horizontal direction, namely, in the horizontal direction, one upper-row conveying roller is arranged between two adjacent lower-row conveying rollers, and one lower-row conveying roller is arranged between two adjacent upper-row conveying rollers.
Preferably, the conveying roller is composed of a rotating shaft and a roller arranged on the rotating shaft, a bearing is arranged between the roller and the rotating shaft, an outer ring of the bearing is arranged on the roller to form the driven piece, an inner ring of the bearing is arranged on the rotating shaft to form the driving piece, and the rotating shaft forms a power output shaft of the driving mechanism.
Preferably, the driving mechanism comprises a driving motor, a transmission shaft and a gear transmission mechanism, wherein the transmission shaft and the gear transmission mechanism are arranged among the discharging guide roller, the feeding guide roller and the upper row of conveying rollers, the driving motor is arranged on the box body, a main shaft of the driving motor is connected with the transmission shaft, and the transmission shaft is horizontally arranged along the conveying direction of the printing material; the gear transmission mechanism comprises a first gear arranged on the upper row of conveying rollers and a second gear arranged on the transmission shaft, and the first gear is meshed with the second gear.
Preferably, the driving mechanism comprises a driving motor, the driving motor is arranged on the box body, and the driving motor is connected with the discharging guide roller, the two adjacent upper-row conveying rollers and the feeding guide roller through synchronous transmission mechanisms.
Preferably, the driving mechanism comprises a driving motor, a driving synchronizing wheel, a driven synchronizing wheel and a synchronous belt, wherein the driving motor is arranged on the box body, a main shaft of the driving motor is connected with the driving synchronizing wheel, the driven synchronizing wheel is arranged on the feeding guide roller, the upper row conveying roller and the discharging guide roller, the synchronous belt sequentially surrounds the driving synchronizing wheel and the driven synchronizing wheel, and a tensioning synchronizing wheel is further arranged between two adjacent driven synchronizing wheels.
Preferably, an auxiliary guide roller matched with the discharging guide roller is arranged above the discharging guide roller, the auxiliary guide roller is rotationally connected to the box body, and the upper surface and the lower surface of the film printing material are respectively attached to the auxiliary guide roller and the discharging guide roller.
The utility model provides a coil stock film pyrocondensation machine, includes material sending out device, material receiving arrangement and setting are in the material sending out device with between the material receiving arrangement the heating treatment case, wherein, heating treatment case one end with material sending out device is connected, the other end with material receiving arrangement is connected.
Preferably, a vacuum adsorption box is arranged between the heating treatment box and the material sending device and the material receiving device.
Compared with the prior art, the invention has the following beneficial effects:
1. The heating treatment box of the film printing stock can be used as terminal heating treatment equipment (such as drying after printing) of a film printing stock silk screen printing production line and can also be used as intermediate heating treatment equipment (such as heat shrinkage pretreatment of the film printing stock before printing and drying before secondary printing) on the production line, so that the application range is wide and the flexibility is good.
2. Compared with a loop type oven, the heating treatment box has the advantages that printing materials in the box body extend back and forth along the up-down direction to form a 'current flow' structure, when the extending path of the printing materials in the box body needs to be increased or reduced, the length or the height of the box body can be only changed, and the loop type oven needs to be increased in length and height at the same time, so that the size of the box body can be flexibly set according to the size of the field space.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of a coil stock film heat shrink machine according to the present invention.
Fig. 2 is a schematic perspective view of a driving mechanism in the heating processing tank in fig. 1.
Fig. 3 is a schematic perspective view of the upper conveying roller in fig. 2.
Fig. 4 is a front view of fig. 3.
Fig. 5 is a schematic structural view of a driving mechanism in a second embodiment of the coil stock film heat shrinkage machine of the present invention.
Fig. 6 is a schematic structural view of a driving mechanism in a third embodiment of the coiled material film thermal shrinkage machine according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto.
Example 1
Referring to fig. 1 and 2, the heating treatment box for the film printing stock comprises a box body 1, a heating component and a conveying component 2 for conveying the film printing stock, wherein the conveying component 2 is arranged in the box body 1 and comprises a feeding guide roller 2-1 positioned at a feed port of the box body 1, a discharging guide roller 2-2 positioned at a discharge port of the box body 1 and a conveying roller arranged between the feeding guide roller 2-1 and the discharging guide roller 2-2, the conveying roller comprises an upper conveying roller 2-3 arranged at the upper part of the box body 1 and a lower conveying roller 2-3 arranged at the lower part of the box body 1, the film printing stock bypasses the feeding guide roller 2-1 at the feed port and enters the box body 1, alternately bypasses the upper conveying roller 2-3 and the lower conveying roller 2-3 in the box body 1 in the up-down direction, and finally bypasses the discharging guide roller 2-2 at the discharge port and leaves the box body 1.
Referring to fig. 1-4, the heating treatment box further includes a driving mechanism 3 that drives the feeding guide roller 2-1, the conveying roller and the discharging guide roller 2-2 to rotate at the same angular velocity, wherein the printing material sequentially bypasses the feeding guide roller 2-1, the conveying roller and the discharging guide roller 2-2, a damping transmission mechanism 5 is disposed between the conveying roller and the driving mechanism 3, the damping transmission mechanism 5 includes a driving member 5-1 and a driven member 5-2 that can rotate relatively, the driving member 5-1 is mounted on a power output shaft of the driving mechanism 3, and the driven member 5-2 is mounted on the conveying roller; the driving piece 5-1 and the driven piece 5-2 are provided with a maximum damping driving force F, and when the driving force between the driving piece 5-1 and the driven piece 5-2 is smaller than the maximum damping driving force F, the driving piece 5-1 and the driven piece 5-2 synchronously rotate; when the driving force between the driving member 5-1 and the driven member 5-2 is greater than the maximum damping driving force F, the driving member 5-1 and the driven member 5-2 slide relatively.
In this way, when in operation, the driving mechanism 3 drives the feeding guide roller 2-1, the conveying roller and the discharging guide roller 2-2 to synchronously rotate at an equiangular speed, thereby driving the printing material to move. When the diameters of all the conveying rollers are consistent, the lengths of the printing materials conveyed by each conveying roller in the same time are consistent, and the printing materials are driven by the synchronous static friction of each conveying roller along the conveying direction of the printing materials, so that the sliding between the conveying rollers and the printing materials does not occur, the pulling action on the printing materials is not generated between the adjacent conveying rollers, and the conveying speeds of all parts of the printing materials at the moment are consistent.
When the conveying line speeds among the conveying rollers are inconsistent due to certain reasons, for example, the conveying rollers wear during long-term conveying, so that the diameters of the conveying rollers are reduced, or the diameters of the conveying rollers are inconsistent due to machining errors during machining of the conveying rollers; the damping transmission mechanism 5 can adaptively adjust the conveying line speed of the conveying roller, and the specific process is as follows:
Assuming that the ideal conveying line speed set by the conveying roller is V, at the moment, the static friction driving force of the conveying roller on the printing material is equal to the reverse acting force of the printing material on the conveying roller, and assuming that the static friction force at the moment is equal to the maximum damping driving force F; when the conveying speed of a conveying roller is about to be greater than V, the conveying roller is necessarily limited by the conveying rollers with other conveying speeds equal to V, so that the speed can be increased by increasing the static friction driving force on the printing stock, however, when the static friction driving force is increased, the maximum damping driving force F between the driving member 5-1 and the driven member 5-2 is greater, the driving member 5-1 and the driven member 5-2 slide relatively (i.e. skid), so that the rotating speed of the driving member 5-1 is greater than the rotating speed of the driven member 5-2 (i.e. the conveying roller), and the conveying speed of the conveying roller cannot be increased and is kept at V. Similarly, when the conveying line speed of a certain conveying roller is about to be smaller than V, the conveying line speed of the conveying roller is necessarily subjected to additional pulling action on the printing material moving at the set speed V, at this time, the driving force between the driving member 5-1 and the driven member 5-2 is larger than the maximum damping driving force F, and the driving member 5-1 and the driven member 5-2 slide relatively (i.e. skid), so that the rotating speed of the driven member 5-2 (i.e. the conveying roller) is larger than the rotating speed of the driving member 5-1, and the conveying line speed of the conveying roller cannot be reduced and is kept at V. Therefore, all the conveying rollers rotate according to the set conveying line speed V, and when the conveying line speed of the conveying rollers tends to be increased and decreased, the conveying rollers are limited by printing materials according to the set conveying line speed V, so that the conveying rollers are automatically adjusted to the set conveying line speed V. The set conveyor line speed V may be defined by conveyor rolls (e.g., a feed guide roll 2-1 and a discharge guide roll 2-2, respectively, connected to a drive motor 3-1) having a constant conveyor line speed at both ends of the conveyor.
Referring to fig. 1 and 2, the upper conveying rollers 2-3 and the lower conveying rollers 2-3 are uniformly arranged in a staggered manner in the horizontal direction. That is, in the horizontal direction, one upper-row conveying roller 2-3 is disposed in the middle of two adjacent lower-row conveying rollers 2-3, and one lower-row conveying roller 2-3 is disposed in the middle of two adjacent upper-row conveying rollers 2-3. The advantage of setting like this lies in can guaranteeing that film class stock is the same with area of contact (wrap angle) between upper row conveyor roller 2-3 and lower row conveyor roller 2-3, and then makes the drive power that upper row conveyor roller 2-3 and lower row conveyor roller 2-3 that film class stock received is the same, and film class stock each position atress is even to make the motion of wind-up roll more smooth, film class stock can not warp.
Referring to fig. 1-4, the upper conveying roller 2-3 is connected with the driving mechanism 3, and the lower conveying roller 2-3 is a free rotating roller. Therefore, the dead weight of the printing material is utilized to enable the printing material to be clung to the upper conveying roller 2-3, so that static friction driving force can be generated between the printing material and the upper conveying roller 2-3, and slipping is avoided.
Referring to fig. 1-4, the upper row conveying roller 2-3 is composed of a rotating shaft 2-5 and a roller 2-6 arranged on the rotating shaft 2-5, a bearing is arranged between the roller 2-6 and the rotating shaft 2-5, an outer ring of the bearing is arranged on the roller 2-6 to form the driven piece 5-2, an inner ring of the bearing is arranged on the rotating shaft 2-5 to form the driving piece 5-1, and the rotating shaft 2-5 forms a power output shaft of the driving mechanism 3. In this way, the linear speed of the roller 2-6 is changed by the relative rotation between the inner ring and the outer ring of the bearing, namely, when the conveying line speed on the conveying roller is smaller than the ideal conveying line speed V, the conveying roller is subjected to the additional pulling action of the printing stock moving at the set speed V, at this time, the driving force between the outer ring and the inner ring of the bearing is larger than the maximum damping driving force F, and the outer ring and the inner ring of the bearing slide relatively (i.e. slip), so that the rotating speed of the outer ring of the bearing (i.e. the conveying roller) is larger than the rotating speed of the rotating shaft 2-5, and the conveying line speed of the conveying roller cannot be reduced and is kept at V. Similarly, when the conveying line speed of a certain conveying roller is about to be greater than V, the conveying line speed of the conveying roller is necessarily limited by the conveying rollers with the conveying line speed equal to V, so that the speed can be increased only by increasing the static friction driving force on the printing material, however, when the static friction driving force is increased, the maximum damping driving force F between the bearing outer ring and the bearing inner ring is increased, and the bearing outer ring and the bearing inner ring slide relatively (i.e. slip), so that the rotating speed of the bearing inner ring is greater than the rotating speed of the bearing outer ring (i.e. the conveying roller), and the conveying line speed of the conveying roller cannot be increased and is kept at V. This ensures that the printing material is not pulled during transport and deformed.
Referring to fig. 1 and 2, the conveying roller is rotatably connected to the casing 1. During operation, because the film printing stock moves on the conveying roller and the conveying roller synchronously rotates, relative friction can not be generated between the film printing stock and the conveying roller, and the required traction force of the film printing stock in the advancing process is small, so that on one hand, the energy consumption can be saved, and on the other hand, the film printing stock cannot be stretched and deformed due to overlarge traction force.
Referring to fig. 2, the driving mechanism 3 includes a driving motor 3-1, a driving synchronizing wheel 3-5, a driven synchronizing wheel 3-6 and a synchronous belt 3-7, wherein the driving motor 3-1 is mounted on the box 1, a main shaft of the driving motor 3-1 is connected with the driving synchronizing wheel 3-5, the driven synchronizing wheel 3-6 is disposed on the discharging guide roller 2-2, the feeding guide roller 2-1 and the upper row conveying roller 2-3, the synchronous belt 3-7 is sequentially wound on the driving synchronizing wheel 3-5 and the driven synchronizing wheel 3-6, and a tensioning synchronizing wheel is further disposed between two adjacent driven synchronizing wheels 3-6. In this way, the driving synchronizing wheel 3-5 rotates to drive the driven synchronizing wheel 3-6 arranged on the whole conveying assembly 2 to rotate, so that the whole conveying assembly 2 synchronously rotates, the traction force of the film printing materials is increased, and the conveying of the film printing materials is smoother.
Referring to fig. 2, an auxiliary guide roller 2-4 matched with the discharging guide roller 2-2 is arranged above the discharging guide roller 2-2, the auxiliary guide roller 2-4 is rotatably connected to the box body 1, and the upper surface and the lower surface of the film printing stock are respectively attached to the auxiliary guide roller 2-4 and the discharging guide roller 2-2. When the device works, the discharging guide roller 2-2 rotates under the drive of the driving mechanism 3, and simultaneously the auxiliary guide roller 2-4 also synchronously rotates, so that the film printing material is clamped and pushed to move forwards in the rotating process. The advantage of setting like this is that after setting up supplementary deflector roll 2-4, ejection of compact deflector roll 2-2 and supplementary deflector roll 2-4 cooperation, the centre gripping actuating force to film class printing stock is bigger to can pull film class printing stock forward motion better.
In this embodiment, the damping transmission mechanism 5 may be constituted by providing a bearing between the driven synchronizing wheel 3-6 and the conveying roller 2.
Example 2
Referring to fig. 5, the present embodiment is different from embodiment 1 in that the driving mechanism 3 includes a driving motor 3-1, and a transmission shaft 3-2 and a gear transmission mechanism provided between a discharging guide roller 2-2, a feeding guide roller 2-1 and an upper row conveying roller 2-3, wherein the driving motor 3-1 is mounted on a casing 1 and a main shaft of the driving motor 3-1 is connected with the transmission shaft 3-2, and the transmission shaft 3-2 is horizontally provided along a conveying direction of a printing material; the gear transmission mechanism comprises a first gear 3-3 arranged on the upper row of conveying rollers 2-3 and a second gear 3-4 arranged on the transmission shaft 3-2. The driving motor 3-1 drives the transmission shaft 3-2 to rotate, so that the second gear 3-4 on the transmission shaft 3-2 is driven to rotate, and the first gear 3-3 meshed with the second gear 3-4 also rotates along with the rotation, so that the feeding guide roller 2-1, the upper row conveying roller 2-3 and the discharging guide roller 2-2 synchronously rotate at equal angular speed. The first gear 3-3 and the second gear 3-4 are bevel gears.
In this embodiment, a bearing may be disposed between the first gear 3-3 and the conveying roller, an outer ring of the bearing is matched with a mounting hole of the first gear 3-3, so as to form a driving member 5-1 of the damping transmission mechanism 5, and an inner ring of the bearing is matched with the conveying roller, so as to form a driven member 5-2 of the damping transmission mechanism 5. Therefore, the conveying line speed of the conveying rollers can be changed through relative rotation between the inner ring and the outer ring of the bearing, so that the conveying line speeds of all the conveying rollers are kept consistent, and the printing material is prevented from being pulled to deform in the conveying process.
Example 3
Referring to fig. 6, the present embodiment is different from embodiment 1 in that the driving mechanism 3 includes a driving motor 3-1, the driving motor 3-1 is mounted on the box 1, and the driving motor 3-1 is connected to the discharging guide roller 2-1, between two adjacent upper conveying rollers 2-3, and between the upper conveying rollers 2-3 and the feeding guide roller 2-2 through a synchronous transmission mechanism 4. Therefore, the synchronous movement of the discharging guide roller 2-2, the feeding guide roller 2-1 and all the upper row conveying rollers 2-3 can be realized by driving the driving motor 3-1, so that the traction force of the film printing materials is increased, the conveying of the film printing materials is smoother, and the cost is saved. The synchronous transmission mechanism 4 can be a chain transmission mechanism or a synchronous belt transmission mechanism.
Example 4
Referring to fig. 1, the coiled material film thermal shrinkage machine comprises a material sending device A, a material receiving device B and a heating treatment box C arranged between the material sending device A and the material receiving device B, wherein one end of the heating treatment box C is connected with the material sending device A, and the other end of the heating treatment box C is connected with the material receiving device B.
Referring to fig. 1, a vacuum adsorption box D is arranged between the heating treatment box C and the material sending device a and the material receiving device B. Therefore, the printing stock between the material sending device A and the heating treatment box C and the printing stock between the heating treatment box C and the material receiving device B are in a tight state, and the conveying is facilitated.
The foregoing is illustrative of the present invention and is not to be construed as limiting thereof, but rather as various changes, modifications, substitutions, combinations, and simplifications which may be made therein without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. A coiled material film thermal shrinkage machine using a heating treatment box of film printing materials is characterized in that the heating treatment box comprises a box body, a heating component and a conveying component for conveying the film printing materials,
The conveying assembly is arranged in the box body and comprises a feeding guide roller positioned at a feeding hole of the box body, a discharging guide roller positioned at a discharging hole of the box body and a conveying roller arranged between the feeding guide roller and the feeding guide roller, wherein the conveying roller comprises an upper row of conveying rollers arranged at the upper part of the box body and a lower row of conveying rollers arranged at the lower part of the box body, wherein the film printing materials enter the box body after bypassing the feeding guide roller at the feeding hole, bypass the upper row of conveying rollers and the lower row of conveying rollers alternately in the box body along the up-down direction, and finally bypass the discharging guide roller at the discharging hole to leave the box body;
The printing machine further comprises a driving mechanism for driving the feeding guide roller, the discharging guide roller and the conveying roller to rotate at the same angular speed, wherein the printing material sequentially bypasses the feeding guide roller, the conveying roller and the discharging guide roller; a damping transmission mechanism is arranged between the conveying roller and the driving mechanism, and comprises a driving piece and a driven piece which can rotate relatively, wherein the driving piece is arranged on a power output shaft of the driving mechanism, and the driven piece is arranged on the conveying roller; the driving piece and the driven piece are synchronously rotated when the driving force between the driving piece and the driven piece is smaller than the maximum damping driving force F, and the driving piece and the driven piece relatively slide when the driving force between the driving piece and the driven piece is larger than the maximum damping driving force F;
The damping transmission mechanism can carry out self-adaptive adjustment on the conveying line speed of the conveying roller, and the specific process is as follows: assuming that the ideal conveying line speed set by the conveying roller is V, at the moment, the static friction driving force of the conveying roller on the printing material is equal to the reverse acting force of the printing material on the conveying roller, and assuming that the static friction driving force at the moment is equal to the maximum damping driving force F; when the conveying line speed of one conveying roller is required to be greater than V, the conveying roller is limited by the conveying rollers with other conveying line speeds equal to V, so that the speed can be increased only by increasing the static friction driving force on the printing stock, however, when the static friction driving force is increased, the maximum damping driving force F between the driving member and the driven member is increased, the driving member and the driven member relatively slide, so that the rotating speed of the driving member is greater than the rotating speed of the driven member, and the conveying line speed of the conveying roller cannot be increased and is kept at V; when the conveying line speed of a certain conveying roller is about to be smaller than V, the conveying roller is subjected to the additional pulling action of the printing stock moving at the set speed V, at the moment, the driving force between the driving piece and the driven piece is larger than the maximum damping driving force F, and the driving piece and the driven piece slide relatively, so that the rotating speed of the driven piece is larger than that of the driving piece, and the conveying line speed of the conveying roller cannot be reduced and is kept to be V;
The coiled material film thermal shrinkage machine further comprises a material sending device and a material receiving device, one end of the heating treatment box is connected with the material sending device, and the other end of the heating treatment box is connected with the material receiving device.
2. The roll film heat shrinkage machine using the heating processing box for film-like printing materials according to claim 1, wherein the upper and lower rows of conveying rollers are uniformly arranged in a horizontal direction in a staggered manner, that is, in the horizontal direction, one upper row of conveying rollers is arranged between two adjacent lower rows of conveying rollers, and one lower row of conveying rollers is arranged between two adjacent upper rows of conveying rollers.
3. The coil stock film thermal shrinkage machine using the heating treatment box for film type printing materials according to claim 2, wherein the conveying roller consists of a rotating shaft and a roller arranged on the rotating shaft, a bearing is arranged between the roller and the rotating shaft, an outer ring of the bearing is arranged on the roller to form the driven member, an inner ring of the bearing is arranged on the rotating shaft to form the driving member, and the rotating shaft forms a power output shaft of the driving mechanism.
4. A coil stock film heat shrinkage machine using a heating treatment box for film type printing materials according to claim 3, wherein the driving mechanism comprises a driving motor, a transmission shaft and a gear transmission mechanism, wherein the transmission shaft and the gear transmission mechanism are arranged among a discharging guide roller, a feeding guide roller and an upper row of conveying rollers, the driving motor is arranged on the box body, a main shaft of the driving motor is connected with the transmission shaft, and the transmission shaft is horizontally arranged along the conveying direction of the printing materials; the gear transmission mechanism comprises a first gear arranged on the upper row of conveying rollers and a second gear arranged on the transmission shaft, and the first gear is meshed with the second gear.
5. A coil stock film heat shrinkage machine using a heating treatment box for film type printing materials according to claim 3, wherein the driving mechanism comprises a driving motor, the driving motor is arranged on the box body, and the driving motor is connected with a discharging guide roller, two adjacent upper row conveying rollers and the upper row conveying rollers and a feeding guide roller through synchronous transmission mechanisms.
6. The coil stock film pyrocondensation machine applying the heating treatment box for the film type printing materials according to claim 3, wherein the driving mechanism comprises a driving motor, a driving synchronizing wheel, a driven synchronizing wheel and a synchronous belt, wherein the driving motor is arranged on the box body, a main shaft of the driving motor is connected with the driving synchronizing wheel, the driven synchronizing wheel is arranged on a feeding guide roller, an upper row conveying roller and a discharging guide roller, the synchronous belt sequentially surrounds the driving synchronizing wheel and the driven synchronizing wheel, and a tensioning synchronizing wheel is further arranged between two adjacent driven synchronizing wheels.
7. The coiled material film thermal shrinkage machine using the heating treatment box for the film printing materials according to claim 6, wherein an auxiliary guide roller matched with the discharging guide roller is arranged above the discharging guide roller, the auxiliary guide roller is rotatably connected to the box body, and the upper surface and the lower surface of the film printing materials are respectively attached to the auxiliary guide roller and the discharging guide roller.
8. The coiled material film thermal shrinkage machine using the heating treatment box for the film printing materials according to claim 1, wherein a vacuum adsorption box is arranged between the heating treatment box and the material sending device and the material receiving device.
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| CN201810246957.2A CN108312696B (en) | 2018-03-23 | 2018-03-23 | Heating treatment box for film printing stock and coiled material film thermal shrinkage machine |
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