CN113103736A - Pressure adjusting device of flexible printing machine - Google Patents
Pressure adjusting device of flexible printing machine Download PDFInfo
- Publication number
- CN113103736A CN113103736A CN202110253314.2A CN202110253314A CN113103736A CN 113103736 A CN113103736 A CN 113103736A CN 202110253314 A CN202110253314 A CN 202110253314A CN 113103736 A CN113103736 A CN 113103736A
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- elastic support
- printing
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- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 230000001105 regulatory effect Effects 0.000 claims abstract 4
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000007774 anilox coating Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
- B41F13/34—Cylinder lifting or adjusting devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
- B41F31/32—Lifting or adjusting devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screen Printers (AREA)
Abstract
The invention discloses a pressure regulating device of a flexible printing machine, which comprises a support frame, a screen roller, a bottom roller and a printing roller, wherein the printing roller is positioned above the printing roller, the screen roller is positioned at the left lower side of the printing roller, the bottom roller is positioned at the right lower side of the printing roller, two symmetrical inclined chutes, two pivoted oscillating rods and a limiting elastic support are respectively arranged at two end parts of the support frame, the limiting elastic support is positioned between the two oscillating rods, one end of each oscillating rod is pressed against the limiting elastic support, two pushing mechanisms are arranged at the bottom of the support frame, each pushing mechanism comprises a U-shaped pushing rod, two sliding bearing seats are respectively arranged on two side arms of each U-shaped pushing rod, the sliding bearing seats are in sliding fit with the corresponding inclined chutes, the screen roller and the bottom roller are respectively pivoted between the two corresponding sliding bearing seats, and the. The invention has convenient pressure regulation and stable operation of the printing head.
Description
Technical Field
The invention relates to the technical field of flexographic printing machines, in particular to a pressure adjusting device of a flexible printing machine.
Background
The printing head is the core part of the flexible printing machine and is mainly used for solving the relative position relation among a plate roller, a stamping roller and an anilox roller, when the flexible printing machine works, printing ink is transferred to the plate roller from the anilox roller, and then printing is carried out on a printing material passing through the stamping roller and a plate roller piece, the depth and the quality of a printing color are mainly determined by the pressure between the stamping roller and the plate roller and between the plate roller and the anilox roller, because the flexible printing machine has different requirements on the printing pressure in the printing process of high-speed printing and low-speed printing, the adjusted printing pressure in the low-speed printing needs to be readjusted when the flexible printing machine is used for high-speed printing, if the printing pressure is not adjusted, the reduction effect of a printing pattern is different, a large amount of raw materials are wasted, the enterprise cost is increased, the traditional pressure adjusting mode is manual adjustment, but the continuous adjustment of the printing pressure not, therefore, a flexible printing head capable of automatically adjusting pressure appears, but in the adjusting process, either the anilox roller and the bottom roller need to be adjusted simultaneously, so that independent pressure adjustment cannot be realized, or independent pressure adjustment can be realized, but in the pressure adjusting process, relative sliding is generated between the anilox roller and the plate roller and between the bottom roller and the plate roller, so that the defect of pattern blurring appears.
Disclosure of Invention
In view of the above, the present invention provides a pressure adjustment device for a flexible printing press, so as to solve the above technical problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a pressure adjusting device of a flexible printing machine comprises a supporting frame, a mesh roller, a bottom roller and a plate roller, wherein the plate roller is positioned above the mesh roller, the mesh roller is positioned at the left lower side of the printing roller, the bottom roller is positioned at the right lower side of the printing roller, two symmetrical inclined chutes, two pivoted swing rods and a limiting elastic support are respectively arranged at two end parts of the support frame, the limiting elastic support is positioned between the two swing rods, one end of the swing rod is pressed on the limiting elastic support, the bottom of the support frame is provided with two pushing mechanisms, the pushing mechanism comprises a U-shaped pushing rod, two side arms of the U-shaped pushing rod are respectively provided with a sliding bearing seat, the sliding bearing seats are in sliding fit with the corresponding inclined sliding chutes, the net roller and the bottom roller are respectively pivoted between the two corresponding sliding bearing seats, and the sliding bearing seats are pressed against the other ends of the corresponding swing rods.
Further, pushing mechanism still include the motor, with motor output shaft fixed connection's lead screw, with nut piece and the connecting rod that the lead screw cooperation is connected, the connecting rod pin joint is in nut piece with between the U-shaped catch bar, just the connecting rod with the contained angle between the U-shaped catch bar is greater than.
Furthermore, the limiting elastic support comprises a fixed shell fixedly connected with the support frame and two elastic supporting mechanisms arranged in the fixed shell, and the end part of the swing rod is pressed against the corresponding elastic supporting mechanism.
Furthermore, the elastic support mechanism comprises a sliding frame, a sliding plate, a pressing plate and a pressure sensor, wherein the sliding frame is arranged on the shell wall of the fixed shell in a sliding manner, a plurality of first compression springs are arranged between the sliding frame and the fixed shell, the sliding plate is in sliding fit with two parallel guide shafts arranged in the fixed shell, the sliding frame is in contact connection with the sliding plate, two bolt columns respectively penetrate through corresponding through holes on the sliding plate to be connected with the pressing plate, the pressure sensor is arranged on a cross beam arranged in the fixed shell, and a second compression spring sleeved on the bolt columns enables the pressing plate to be in contact with the pressure sensor all the time, wherein the sliding direction of the sliding frame is perpendicular to the sliding direction of the sliding plate.
Furthermore, two buffer springs are sleeved on the guide shaft and are positioned between the corresponding sliding plate and the inner wall of the fixed shell.
Furthermore, a second tension spring is connected between the sliding plate and the inner wall of the fixed shell, and the pressing plate and the second tension spring are respectively located on two sides of the sliding plate.
Furthermore, the sliding frame comprises a supporting plate, a connecting plate and two connecting shafts connected between the supporting plate and the connecting plate, the connecting shafts are in sliding fit with corresponding guide holes in the shell wall of the fixed shell, the end portion of the oscillating bar abuts against the supporting plate, the first compression spring is sleeved on the connecting shafts, and a first wedge block arranged on the connecting plate abuts against the sliding plate.
Furthermore, the elastic support mechanism further comprises a V-shaped swing frame pivoted in the fixed shell, a first tension spring is connected between one side arm of the V-shaped swing frame and the fixed shell, the first tension spring enables a roller on the other side arm of the V-shaped swing frame to always abut against the wedge surface of the second wedge block, and the second wedge block is fixedly connected with the connecting plate.
Furthermore, the top of the support frame is provided with a U-shaped chute, the fixed bearing seats connected to the two ends of the printing roller are respectively in sliding fit with the corresponding U-shaped chutes, two side surfaces of each fixed bearing seat are provided with a plurality of limiting holes, and a plurality of fixing bolts connected to the support frame are respectively inserted into the corresponding limiting holes to lock the positions of the fixed bearing seats.
The technical scheme can show that the invention has the advantages that: because the net roller and the bottom roller are respectively connected with the corresponding pushing mechanisms, the pressure can be independently adjusted, the arrangement of the pushing mechanisms reduces the labor intensity of operators, and the working efficiency and the automation degree are improved; the limiting elastic support can not only adjust the pressure between the screen roller/bottom roller and the printing roller, but also absorb the vibration in the printing process, so that the working process is stable; the position of the fixed bearing seat is adjustable, so that the device can be suitable for printing rollers with different diameters.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partial structural schematic diagram of the present invention.
Fig. 3 is a schematic structural view of the limiting elastic support of the present invention.
List of reference numerals: the device comprises a support frame 1, a U-shaped sliding chute 11, an inclined sliding chute 12, a pushing mechanism 2, a motor 21, a screw rod 22, a nut block 23, a connecting rod 24, a U-shaped pushing rod 25, a sliding bearing seat 26, a net roller 3, a bottom roller 4, a swing rod 5, a fixed bearing seat 6, a printing roller 7, a limiting elastic support 8, a fixed shell 81, a guide shaft 82, a cross beam 83, an elastic supporting mechanism 84, a sliding frame 841, a support plate 8411, a connecting shaft 8412, a connecting plate 8413, a first wedge 8414, a second wedge 8415, a first compression spring 842, a sliding plate 843, a pressing plate 844, a bolt column 845, a second compression spring 846, a pressure sensor 847, a V-shaped swinging frame 848, a first tension spring 849, a buffer spring 85, a second tension spring 86 and a.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3 to further explain the present invention, as shown in fig. 1, the pressure adjusting device of a flexible printing press includes a support frame 1, a mesh roller 3, a bottom roller 4 and a printing roller 7, the printing roller 7 is located above, the mesh roller 3 is located at the left lower side of the printing roller 7, the bottom roller 4 is located at the right lower side of the printing roller 7, two symmetrical inclined chutes 12, two pivoted swing rods 5 and a limiting elastic support 8 are respectively arranged at two ends of the support frame 1, the limiting elastic support 8 is located between the two swing rods 5, one end of each swing rod 5 is pressed against the limiting elastic support 8, two pushing mechanisms 2 are arranged at the bottom of the support frame 1, each pushing mechanism 2 includes a U-shaped pushing rod 25, a sliding bearing seat 26 is respectively arranged on each of two side arms of the U-shaped pushing rod 25, the sliding bearing seat 26 is in sliding fit with the corresponding inclined chute 12, the mesh roller 3 and the bottom roller 4 are respectively pivoted between the two corresponding sliding bearing seats 26, the sliding bearing seats 26 are pressed against the other ends of the corresponding swing rods 5, when the pushing mechanism 2 pushes the mesh roller 3 or the bottom roller 4 to approach the plate roller 7, the sliding bearing seat 26 drives the corresponding swing rod 5 to rotate, because one end of the swing link 5 is pressed against the limiting elastic support 8, whether the pressure between the printing roller 7 and the screen roller 3 or the pressure between the printing roller 7 and the bottom roller 4 meets the requirement is judged according to the pressure measured by the limiting elastic support 8, as the mesh roller 3 and the bottom roller 4 do linear motion along the inclined chute 12 in the adjusting process, the thrust direction borne by the mesh roller 3 or the bottom roller 4 is overlapped with the radial direction of the plate roller 7 as much as possible, therefore, the pattern blurring caused by relative sliding cannot occur, and the structure is simple while the pressure regulation can be met.
As shown in fig. 1, the pushing mechanism 2 further includes a motor 21, a screw rod 22 fixedly connected to an output shaft of the motor 21, a nut block 23 and a connecting rod 24 cooperatively connected to the screw rod 22, the connecting rod 24 is pivotally connected between the nut block 23 and the U-shaped pushing rod 25, and an included angle between the connecting rod 24 and the U-shaped pushing rod 25 is greater than 90 °, so as to ensure that the mesh roller 3 and the bottom roller 4 reliably slide along the inclined chute 12.
As shown in fig. 2, a U-shaped chute 11 is arranged at the top of the support frame 1, the fixed bearing seats 6 connected to two ends of the printing roller 7 are respectively in sliding fit with the corresponding U-shaped chute 11, a plurality of limiting holes are arranged on two side surfaces of the fixed bearing seats 6, and a plurality of fixing bolts 9 connected to the support frame 1 are respectively inserted into the corresponding limiting holes to lock the positions of the fixed bearing seats 6, so that the support frame can be applied to printing rollers 7 with different diameters.
As shown in fig. 1 and 3, the limiting elastic support 8 includes a fixed shell 81 fixedly connected to the support frame 1 and two elastic support mechanisms 84 disposed in the fixed shell 81, and an end of the swing link 5 abuts against the corresponding elastic support mechanism 84, so that the mesh roller 3 and the bottom roller 4 can be adjusted independently.
The elastic support mechanism 84 comprises a carriage 841, a sliding plate 843, a pressure plate 844 and a pressure sensor 847, the carriage 841 is slidably arranged on the wall of the fixed shell 81, a plurality of first compression springs 842 are arranged between the carriage 841 and the fixed shell 81, the sliding plate 843 is slidably matched with two guide shafts 82 which are arranged in the fixed shell 81 and are parallel to each other, the carriage 841 is in contact connection with the sliding plate 843, two bolt columns 845 respectively penetrate through corresponding through holes on the sliding plate 843 to be connected with the pressure plate 844, the pressure sensor 847 is arranged on a cross beam 83 in the fixed shell 81, a second compression spring 846 which is sleeved on the bolt columns 845 enables the pressure plate 844 and the pressure sensor 847 to be in contact all the time, wherein the sliding direction of the carriage 841 is perpendicular to the sliding direction of the sliding plate 843, so that the rigidity of the elastic support mechanism 84 is increased, make whole smooth operation when the elasticity supporting mechanism 84 cushioning nature is good, wherein, the cover is equipped with two buffer spring 85 on the guiding axle 82, buffer spring 85 be located corresponding slide 843 with between the inner wall of fixed shell 81, avoid slide 843 produces the striking when being released suddenly.
The sliding plate 843 and be connected with second extension spring 86 between the inner wall of set casing 81, just the clamp plate 844 with second extension spring 86 is located respectively the sliding plate 843 both sides, second extension spring 86 has increased with the cooperation of second compression spring 846 the rigidity of elastic support mechanism 84 avoids during operation net roller 3 or bottom roll 4 to rock frequently.
The carriage 841 comprises a supporting plate 8411, a connecting plate 8413 and two connecting shafts 8412 connected between the supporting plate 8411 and the connecting plate 8413, the connecting shafts 8412 are in sliding fit with corresponding guide holes on the wall of the fixed housing 81, the end of the swing rod 5 is pressed against the supporting plate 8411, the first compression spring 842 is sleeved on the connecting shafts 8412, a first wedge 8414 arranged on the connecting plate 8413 is pressed against the sliding plate 843, the V-shaped swing frame 848 of the elastic support mechanism 84 is pivoted in the fixed housing 81, a first tension spring 849 is connected between one side arm of the V-shaped swing frame 848 and the fixed housing 81, the first tension spring 849 enables a roller on the other side arm of the V-shaped swing frame 848 to be always pressed against the wedge surface of a second wedge 8415, the second wedge 8415 is fixedly connected with the connecting plate 8413, so that the carriage 841 is stressed evenly, is not easy to deform.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A pressure adjusting device of a flexible printing machine comprises a support frame (1), a screen roller (3), a bottom roller (4) and a printing roller (7), wherein the printing roller (7) is positioned above, the screen roller (3) is positioned at the lower left side of the printing roller (7), the bottom roller (4) is positioned at the lower right side of the printing roller (7), the pressure adjusting device is characterized in that two symmetrical inclined chutes (12), two pivoted swing rods (5) and a limiting elastic support (8) are respectively arranged at two end parts of the support frame (1), the limiting elastic support (8) is positioned between the two swing rods (5), one end of each swing rod (5) is pressed on the limiting elastic support (8), two pushing mechanisms (2) are arranged at the bottom of the support frame (1), each pushing mechanism (2) comprises a U-shaped push rod (25), two side arms of each U-shaped push rod (25) are respectively provided with a sliding bearing seat (26), the sliding bearing blocks (26) are in sliding fit with the corresponding inclined sliding chutes (12), the net roller (3) and the bottom roller (4) are respectively pivoted between the two corresponding sliding bearing blocks (26), and the sliding bearing blocks (26) are pressed against the other ends of the corresponding swing rods (5).
2. The flexible printing press pressure regulating device according to claim 1, characterized in that the pushing mechanism (2) further comprises a motor (21), a lead screw (22) fixedly connected with an output shaft of the motor (21), a nut block (23) and a connecting rod (24) which are connected with the lead screw (22) in a matching way, the connecting rod (24) is pivoted between the nut block (23) and the U-shaped push rod (25), and an included angle between the connecting rod (24) and the U-shaped push rod (25) is larger than 90 °.
3. The flexible printing press pressure regulating device according to claim 1, characterized in that the limiting elastic support (8) comprises a fixed shell (81) fixedly connected with the support frame (1) and two elastic support mechanisms (84) arranged in the fixed shell (81), and the end of the swing rod (5) is pressed against the corresponding elastic support mechanism (84).
4. The flexible printer pressure adjustment device of claim 3, wherein the elastic support mechanism (84) comprises a carriage (841), a sliding plate (843), a pressure plate (844) and a pressure sensor (847), the carriage (841) is slidably disposed on the wall of the fixed housing (81), a plurality of first compression springs (842) are disposed between the carriage (841) and the fixed housing (81), the sliding plate (843) is slidably engaged with two guide shafts (82) disposed in the fixed housing (81) in parallel, the carriage (841) is in contact connection with the sliding plate (843), two bolt columns (845) are respectively connected with the pressure plate (844) through corresponding through holes on the sliding plate (843), and the pressure sensor (847) is disposed on a cross beam (83) disposed in the fixed housing (81), and a second compression spring (846) sleeved on the bolt column (845) enables the pressing plate (844) to be always in contact with the pressure sensor (847), wherein the sliding direction of the sliding frame (841) is perpendicular to the sliding direction of the sliding plate (843).
5. The flexible printing press pressure adjustment device according to claim 4, characterized in that two buffer springs (85) are sleeved on the guide shaft (82), and the buffer springs (85) are positioned between the corresponding sliding plate (843) and the inner wall of the fixed shell (81).
6. The flexible printing press pressure adjustment device according to claim 4, characterized in that a second tension spring (86) is connected between the sliding plate (843) and the inner wall of the fixed housing (81), and the pressing plate (844) and the second tension spring (86) are respectively located on both sides of the sliding plate (843).
7. The flexible printing press pressure adjustment device according to claim 4, wherein the carriage (841) comprises a support plate (8411), a connection plate (8413) and two connection shafts (8412) connected between the support plate (8411) and the connection plate (8413), the connection shafts (8412) are in sliding fit with corresponding guide holes on the wall of the fixed housing (81), the end of the swing rod (5) is pressed against the support plate (8411), the first compression spring (842) is sleeved on the connection shaft (8412), and a first wedge block (8414) provided on the connection plate (8413) is pressed against the sliding plate (843).
8. The flexible printing press pressure regulating device according to claim 7, wherein the elastic support mechanism (84) further comprises a V-shaped swing frame (848) pivoted in the fixed shell (81), a first tension spring (849) is connected between one side arm of the V-shaped swing frame (848) and the fixed shell (81), the first tension spring (849) enables a roller on the other side arm of the V-shaped swing frame (848) to always press against a wedge surface of a second wedge block (8415), and the second wedge block (8415) is fixedly connected with the connecting plate (8413).
9. The flexible printing press pressure adjusting device according to claim 1, wherein a U-shaped sliding groove (11) is formed in the top of the supporting frame (1), the fixed bearing seats (6) connected to the two ends of the printing roller (7) are respectively in sliding fit with the corresponding U-shaped sliding grooves (11), a plurality of limiting holes are formed in the two side faces of each fixed bearing seat (6), and a plurality of fixing bolts (9) connected to the supporting frame (1) are respectively inserted into the corresponding limiting holes to lock the positions of the fixed bearing seats (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110253314.2A CN113103736A (en) | 2021-03-09 | 2021-03-09 | Pressure adjusting device of flexible printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110253314.2A CN113103736A (en) | 2021-03-09 | 2021-03-09 | Pressure adjusting device of flexible printing machine |
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| Publication Number | Publication Date |
|---|---|
| CN113103736A true CN113103736A (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110253314.2A Pending CN113103736A (en) | 2021-03-09 | 2021-03-09 | Pressure adjusting device of flexible printing machine |
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| CN (1) | CN113103736A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482539A (en) * | 2021-08-11 | 2021-10-08 | 沧州格锐特钻头有限公司 | Roller bit with pressure detection function |
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| CN113482539B (en) * | 2021-08-11 | 2022-10-14 | 沧州格锐特钻头有限公司 | Roller bit with pressure detection function |
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Application publication date: 20210713 |
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| RJ01 | Rejection of invention patent application after publication |