CN213733977U - Printing plate adjusting mechanism of sheet-fed offset press - Google Patents
Printing plate adjusting mechanism of sheet-fed offset press Download PDFInfo
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- CN213733977U CN213733977U CN202021741525.8U CN202021741525U CN213733977U CN 213733977 U CN213733977 U CN 213733977U CN 202021741525 U CN202021741525 U CN 202021741525U CN 213733977 U CN213733977 U CN 213733977U
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Abstract
The utility model discloses a sheet-fed lithographic printing machine printing plate adjustment mechanism, including printing plate roller and two mounting brackets, printing plate roller includes the dabber, the outside of dabber is close to one end department integrated into one piece and has the right-hand member board, and the outside of dabber is close to another end department key connection and has the left end board, a plurality of backup pad has been cup jointed to the outside of dabber, and the backup pad is located between left end board and the right-hand member board, it is connected with the lead screw to rotate through the bearing on one side outer wall of right-hand member board, and the one end threaded connection that the right-hand member board was kept away from to the lead screw is in the backup pad, it is connected with the transfer line to rotate through the bearing on one side outer wall of backup pad, and the one end threaded connection of transfer line is on one side outer wall of left end board, the outside key-type connection of transfer line has driven gear and driving gear. The utility model discloses lead screw and transfer line rotate and drive the backup pad and move in having the direction most for the printing plate can be adjusted on the horizontal direction, thereby compensates the deformation volume of paper, thereby makes the printing quality improve, and adjusts easy operation.
Description
Technical Field
The utility model relates to the field of printing technology, especially, relate to a sheet-fed lithographic printing machine printing plate adjustment mechanism.
Background
When the offset printing machine is used for printing, paper rolls through a rubber cylinder and an impression cylinder, and the paper absorbs fountain solution, so that the front and back sizes of the paper are different, the overprinting is affected, the overprinting line at the front end of the paper can be registered under the general condition, and the back of the paper cannot be registered.
The existing method for solving the problem is that the printing effect is influenced to a certain extent by adjusting the water quantity of printing or adjusting the paper transfer and the like; and the axial handing-over position of the teeth is required to be adjusted when the handing-over of the paper is adjusted, so that the adjustment difficulty is high.
Therefore, it is desirable to design a plate adjusting mechanism of a sheet-fed offset printing press to solve the above problems.
Disclosure of Invention
The utility model aims to solve the problems of the prior art that the mode of adjusting the water quantity can bring certain influence on the printing effect, such as the handover of the adjusting paper; the adjusting mechanism of the printing plate of the sheet-fed offset printing press has the defects of difficult adjustment due to the fact that the axial connection position of the teeth needs to be adjusted when the paper is adjusted to be connected.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a printing plate adjusting mechanism of a sheet-fed offset press comprises a printing plate roller and two mounting frames, wherein the printing plate roller comprises a mandrel, the outer part of the mandrel is close to one end and integrally provided with a right end plate, the outer part of the mandrel is close to the other end and is in key connection with a left end plate, a plurality of supporting plates are sleeved on the outer part of the mandrel, the supporting plates are positioned between the left end plate and the right end plate, the outer wall of one side of the right end plate is rotatably connected with a lead screw through a bearing, one end of the lead screw, which is far away from the right end plate, is in threaded connection with the supporting plates, the outer wall of one side of the supporting plates is rotatably connected with a transmission rod through a bearing, one end of the transmission rod is in threaded connection with the outer wall of one side of the left end plate, the outer key of the transmission, and the outer parts of the right end plate, the supporting plate and the left end plate are bonded with supporting sleeves, and printing plates are sleeved on the outer parts of the supporting sleeves.
The key concept of the technical scheme is as follows: through the supporting plate, the screw rod and the transmission rod which are arranged, the screw rod and the transmission rod rotate to drive the supporting plate to move in the left-right direction, so that the printing plate can be adjusted in the horizontal direction, the deformation amount of the paper is compensated, the printing quality is improved, and the adjusting operation is simple.
Furthermore, a sliding groove is formed in the outer wall of the side face of the mandrel, a sliding block is integrally formed inside the supporting plate, and the sliding block is connected inside the sliding groove in a sliding mode.
Further, the fixed axle is installed through the bolt on the outer wall of one side of right side end plate, and the outside of fixed axle rotates and is connected with the dead lever, it has the draw-in groove to open on the outer wall of one side of dead lever, and the dead lever passes through the outside of draw-in groove joint at the lead screw.
Furthermore, the outside of lead screw is close to one end department and is opened there is the latch, it has the tooth's socket to open on the side inner wall of draw-in groove, and the latch joint is in the inside of tooth's socket.
Furthermore, all open the spacing groove on left end plate and the right end plate side outer wall, and support the cover and bond in the inside of spacing groove.
Further, the inside sliding connection of mounting bracket has the fixed block, and the dabber passes through the bearing and rotates the inside of connecting at the fixed block.
Further, the welding has the spring on the top outer wall of fixed block, and the one end of spring passes through the screw mounting on the bottom inner wall of mounting bracket.
The utility model has the advantages that:
1. through the supporting plate, the screw rod and the transmission rod which are arranged, the screw rod and the transmission rod rotate to drive the supporting plate to move in the left-right direction, so that the printing plate can be adjusted in the horizontal direction, the deformation amount of the paper is compensated, the printing quality is improved, and the adjusting operation is simple.
2. Through the dead lever that sets up, the mutual joint of latch on the tooth's socket on the dead lever and the lead screw when need not to adjust can prevent that the lead screw from rotating to the precision of printing in-process has been guaranteed, and can prevent that operating personnel from carelessly maloperation.
3. Through the installation frame that sets up, the slider on the installation frame passes through spring and slider reciprocal anchorage to make printing plate roller can the automatically regulated tightly laminate with the transfer roller, increase the transfer volume of ink, make the printing color abundanter.
Drawings
Fig. 1 is a schematic structural diagram of a printing plate adjusting mechanism of a sheet-fed offset printing press according to the present invention;
fig. 2 is a schematic structural diagram of a printing plate roller of a printing plate adjusting mechanism of a sheet-fed offset printing press according to the present invention;
fig. 3 is a sectional view of a printing plate roller structure of a printing plate adjusting mechanism of a sheet-fed offset printing press according to the present invention;
FIG. 4 is a partially enlarged schematic view of the structure A of a printing plate adjusting mechanism of a sheet-fed offset printing press according to the present invention;
fig. 5 is a schematic structural diagram of a mounting bracket of a printing plate adjusting mechanism of a sheet-fed offset printing press according to the present invention.
In the figure: the printing plate comprises a printing plate roller 1, a mounting frame 2, a mandrel 3, a right end plate 4, a supporting plate 5, a left end plate 6, a supporting sleeve 7, a printing plate 8, a screw rod 9, a transmission rod 10, a driven gear 11, a driving gear 12, a latch 14, a fixed shaft 15, a fixed rod 16, a clamping groove 17, a tooth groove 18, a limiting groove 19, a sliding groove 20, a sliding block 21, a fixed block 22 and a spring 23.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 5, a printing plate adjusting mechanism of a sheet-fed offset printing press comprises a printing plate roller 1 and two mounting brackets 2, wherein the printing plate roller 1 comprises a mandrel 3, a right end plate 4 is integrally formed at a position, close to one end, outside the mandrel 3, a left end plate 6 is connected to the position, close to the other end, outside the mandrel 3, through a key, a plurality of supporting plates 5 are sleeved outside the mandrel 3 and used for supporting a supporting sleeve 7, the supporting plates 5 are positioned between the left end plate 6 and the right end plate 4, a lead screw 9 is rotatably connected to an outer wall of one side of the right end plate 4 through a bearing, a threaded end, far away from the right end plate 4, of the lead screw 9 is connected to the supporting plates 5 through a thread, a transmission rod 10 is rotatably connected to an outer wall of one side of the supporting plates 5 through a bearing, a threaded end of the transmission rod 10 is connected to an outer wall of one side of the left end plate 6, and an outer key of the transmission rod 10 is connected to a driven gear 11 and a driving gear 12, and driven gear 11 and driving gear 12 are located the both sides of backup pad 5 respectively, and driven gear 11 and the driving gear 12 that are close to each other intermeshing, and the outside of right end board 4, backup pad 5 and left end board 6 bonds and has supported cover 7, and the material of supporting cover 7 is the stereoplasm rubber for bear printing plate 8, and the outside of supporting cover 7 has cup jointed printing plate 8, is used for the rendition ink.
As can be seen from the above description, the present invention has the following advantages: through the arranged support plate 5, the screw rod 9 and the transmission rod 10 rotate to drive the support plate 5 to move in the left-right direction, so that the printing plate can be adjusted in the horizontal direction, the deformation amount of paper is compensated, the printing quality is improved, and the adjusting operation is simple.
Furthermore, the outer wall of the side face of the mandrel 3 is provided with a sliding groove 20, a sliding block 21 is integrally formed inside the supporting plate 5, and the sliding block 21 is connected inside the sliding groove 20 in a sliding mode and used for transmitting torque, so that the mandrel 3 can drive the supporting plate 5 to rotate.
Further, a fixing shaft 15 is installed on the outer wall of one side of the right end plate 4 through a bolt, a fixing rod 16 is rotatably connected to the outer portion of the fixing shaft 15, a clamping groove 17 is formed in the outer wall of one side of the fixing rod 16, and the fixing rod 16 is connected to the outer portion of the screw rod 9 in a clamped mode through the clamping groove 17 and used for fixing the screw rod 9.
Furthermore, a clamping tooth 14 is arranged at one end, close to the outside of the screw rod 9, a tooth groove 18 is formed in the inner wall of the side face of the clamping groove 17, and the clamping tooth 14 is clamped in the tooth groove 18 and used for fixing the screw rod 9.
Furthermore, the outer walls of the side surfaces of the left end plate 6 and the right end plate 4 are both provided with a limiting groove 19, and the support sleeve 7 is bonded inside the limiting groove 19 and used for positioning the support sleeve 7.
Further, the inside of the mounting frame 2 is slidably connected with a fixing block 22 for connecting the printing plate roller 1, and the mandrel 3 is rotatably connected inside the fixing block 22 through a bearing.
Further, a spring 23 is welded on the outer wall of the top of the fixing block 22 and used for pressing the printing plate roller 1, so that the printing plate roller 1 can be automatically adjusted to be tightly attached to the transfer roller, and one end of the spring 23 is mounted on the inner wall of the bottom of the mounting frame 2 through a screw.
Adopt the dead lever 16 of above-mentioned setting, tooth's socket 18 on the dead lever 16 and the mutual joint of latch 14 on the lead screw 9 when need not to adjust, can prevent that lead screw 9 from rotating, thereby the precision in the printing process has been guaranteed, and can prevent that operating personnel from carelessly maloperation, the mounting bracket 2 of setting, slider 21 on the mounting bracket 2 passes through spring 23 and slider 21 reciprocal anchorage, thereby make printing plate roller 1 can the automatically regulated tightly laminate with the transfer roller, increase the transfer volume of ink, make the printing color abundanter.
In the following, some preferred embodiments or application examples are listed to help those skilled in the art to better understand the technical content of the present invention and the technical contribution of the present invention to the prior art:
example 1
A printing plate adjusting mechanism of a sheet-fed offset press comprises a printing plate roller 1 and two mounting frames 2, wherein the printing plate roller 1 comprises a mandrel 3, a right end plate 4 is integrally formed at the position, close to one end, of the outside of the mandrel 3, a left end plate 6 is connected to the position, close to the other end, of the outside of the mandrel 3 in a key mode, a plurality of supporting plates 5 are sleeved on the outside of the mandrel 3 and used for supporting a supporting sleeve 7, the supporting plates 5 are located between the left end plate 6 and the right end plate 4, a lead screw 9 is rotatably connected to the outer wall of one side of the right end plate 4 through a bearing, one end, far away from the right end plate 4, of the lead screw 9 is connected to the supporting plates 5 in a threaded mode, a transmission rod 10 is rotatably connected to the outer wall of one side of the supporting plates 5 through a bearing, one end of the transmission rod 10 is connected to the outer wall of one side of the left end plate 6 in a threaded mode, the outer key of the transmission rod 10 is connected with a driven gear 11 and a driving gear 12, and the driven gear 11 and the driving gear 12 are respectively located at two sides of the supporting plates 5, driven gear 11 and the driving gear 12 that are close to each other are intermeshing, and the outside of right end plate 4, backup pad 5 and left end plate 6 bonds and has supported cover 7, and the material of supporting cover 7 is the stereoplasm rubber for bear printing plate 8, and the outside of supporting cover 7 has cup jointed printing plate 8, is used for the rendition ink.
The outer wall of the side face of the mandrel 3 is provided with a sliding groove 20, a sliding block 21 is integrally formed inside the supporting plate 5, and the sliding block 21 is connected inside the sliding groove 20 in a sliding manner and used for transmitting torque, so that the mandrel 3 can drive the supporting plate 5 to rotate; a fixed shaft 15 is mounted on the outer wall of one side of the right end plate 4 through a bolt, a fixed rod 16 is rotatably connected to the outer portion of the fixed shaft 15, a clamping groove 17 is formed in the outer wall of one side of the fixed rod 16, and the fixed rod 16 is clamped to the outer portion of the screw rod 9 through the clamping groove 17 and used for fixing the screw rod 9; a clamping tooth 14 is arranged at one end of the outer part of the screw rod 9, which is close to one end of the screw rod, a tooth groove 18 is arranged on the inner wall of the side surface of the clamping groove 17, and the clamping tooth 14 is clamped in the tooth groove 18 and used for fixing the screw rod 9; the outer walls of the side surfaces of the left end plate 6 and the right end plate 4 are both provided with limiting grooves 19, and the support sleeve 7 is bonded inside the limiting grooves 19 and used for positioning the support sleeve 7; the inside of the mounting frame 2 is connected with a fixed block 22 in a sliding manner and used for being connected with the printing plate roller 1, and the mandrel 3 is rotatably connected inside the fixed block 22 through a bearing; the spring 23 is welded on the outer wall of the top of the fixing block 22 and used for pressing the printing plate roller 1, so that the printing plate roller 1 can be automatically adjusted to be tightly attached to the transfer roller, and one end of the spring 23 is mounted on the inner wall of the bottom of the mounting frame 2 through a screw.
The working principle is as follows: when in use, an operator firstly fixedly installs the printing plate roller 1 at a proper position through the mounting frame 2, when the printing plate roller 1 needs to be adjusted, the operator firstly rotates the fixed rod 16 to enable the screw rod 9 to be separated from the inside of the clamping groove 17 of the fixed rod 16, at the moment, the operator can rotate the screw rod 9, the screw rod 9 drives the supporting plate 5 adjacent to the right end plate 4 to move towards one side, meanwhile, the screw rod 9 drives the driving gear 12 on the screw rod 9 to rotate, the driving gear 12 drives the driven gear 11 to rotate, the driven gear 11 drives the transmission rod 10 to rotate, the transmission rod 10 drives the supporting plate 5 in threaded connection with the transmission rod 10 to move, and the transmission rod 10 drives the driving gear 12 on the transmission rod 10 to rotate, and by analogy, all the supporting plates 5 and the left end plate 6 are driven to move towards one side, so that the supporting sleeve 7 and the printing plate 8 are stretched or compressed to compensate the deformation of paper, because the movement amount of each supporting plate 5 is the same as that of the left end plate 6, the deformation amount of the supporting sleeve 7 and the deformation amount of the printing plate 8 are basically the same, and the printing quality is ensured.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A printing plate adjusting mechanism of a sheet-fed offset press comprises a printing plate roller (1) and two mounting frames (2), and is characterized in that the printing plate roller (1) comprises a mandrel (3), the outside of the mandrel (3) is close to one end to form an integrated right end plate (4), the outside of the mandrel (3) is close to the other end to form a key connection with a left end plate (6), a plurality of supporting plates (5) are sleeved on the outside of the mandrel (3), the supporting plates (5) are located between the left end plate (6) and the right end plate (4), a lead screw (9) is connected on the outer wall of one side of the right end plate (4) through a bearing in a rotating manner, one end of the lead screw (9), which is far away from the right end plate (4), is connected on the supporting plate (5) in a threaded manner, a transmission rod (10) is connected on the outer wall of one side of the supporting plate (5) through a bearing in a rotating manner, and one end of the transmission rod (10) is connected on the outer wall of the left end plate (6) in a threaded manner, the external key-type connection of transfer line (10) has driven gear (11) and driving gear (12), and driven gear (11) and driving gear (12) are located the both sides of backup pad (5) respectively, and is close to each other driven gear (11) and driving gear (12) intermeshing, the outside of right side end plate (4), backup pad (5) and left end plate (6) bonds and has supported cover (7), and supports the outside of cover (7) and has cup jointed printing plate (8).
2. A printing plate adjusting mechanism of a sheet-fed offset printing press according to claim 1, characterized in that the side outer wall of the mandrel (3) is provided with a sliding groove (20), the inside of the supporting plate (5) is integrally formed with a sliding block (21), and the sliding block (21) is slidably connected to the inside of the sliding groove (20).
3. The plate adjusting mechanism of the sheet-fed offset printing press as claimed in claim 1, wherein the outer wall of one side of the right end plate (4) is provided with a fixed shaft (15) by a bolt, and the outer part of the fixed shaft (15) is rotatably connected with a fixed rod (16), the outer wall of one side of the fixed rod (16) is provided with a clamping groove (17), and the fixed rod (16) is clamped outside the screw rod (9) by the clamping groove (17).
4. A printing plate adjusting mechanism of a sheet-fed offset printing press as set forth in claim 3, characterized in that a latch (14) is provided on an outer portion of the screw (9) near one end thereof, a slot (18) is provided on an inner side wall of the slot (17), and the latch (14) is latched in the slot (18).
5. A plate adjusting mechanism of a sheet-fed offset printing press according to claim 1, wherein the outer side walls of the left end plate (6) and the right end plate (4) are each formed with a stopper groove (19), and the support sleeve (7) is bonded inside the stopper groove (19).
6. A plate adjusting mechanism of a sheet-fed offset printing press according to claim 1, characterized in that the inside of the mounting frame (2) is slidably connected with a fixing block (22), and the mandrel (3) is rotatably connected inside the fixing block (22) through a bearing.
7. A plate adjusting mechanism of a sheet-fed offset printing press according to claim 6, characterized in that the spring (23) is welded on the top outer wall of the fixed block (22), and one end of the spring (23) is mounted on the bottom inner wall of the mounting frame (2) by a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021741525.8U CN213733977U (en) | 2020-08-20 | 2020-08-20 | Printing plate adjusting mechanism of sheet-fed offset press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021741525.8U CN213733977U (en) | 2020-08-20 | 2020-08-20 | Printing plate adjusting mechanism of sheet-fed offset press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213733977U true CN213733977U (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021741525.8U Active CN213733977U (en) | 2020-08-20 | 2020-08-20 | Printing plate adjusting mechanism of sheet-fed offset press |
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| Country | Link |
|---|---|
| CN (1) | CN213733977U (en) |
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2020
- 2020-08-20 CN CN202021741525.8U patent/CN213733977U/en active Active
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