Printing roller adjusting equipment of printing machine

Abstract

The utility model discloses printing roller adjusting equipment of a printing machine, and belongs to the technical field of printing equipment. In order to solve the problem that deviation of a printing roller is easily caused by single-side adjustment of an existing product, according to the technical scheme, the printing roller adjusting device comprises an installation frame and an electric expansion piece fixedly connected to the shell wall of the top of the installation frame through a bolt, and a limiting frame is installed at the output end of the electric expansion piece; the two sides of the limiting frame are slidably connected to the inner walls of the two sides of the mounting frame correspondingly, sliding grooves are symmetrically formed in the shell walls of the two sides of the limiting frame, and a plurality of carrying plates are slidably connected into each sliding groove. The two-way lead screws arranged on the two sides are matched with the toothed chain driving pieces to achieve synchronous driving of the two sides of the printing roller, so that translation operation of the printing roller during displacement adjustment is guaranteed, and the phenomenon that the printing roller deviates is avoided; and the two ends of the printing roller are matched with the corresponding clamping assemblies through sliding sleeves to achieve convenient clamping type loading of the printing roller, and then the operation burden of workers is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a printing roller adjusting device of a printing press. Background Art

[0002] A printing press is a machine for printing text and images. Modern printing presses are generally composed of mechanisms such as plate loading, inking, embossing, and paper feeding (including folding). According to the printing ink color, it can be divided into various printing equipment such as single-color printing presses, two-color printing presses, and multi-color printing presses. Among them, the printing roller adjustment structure in the traditional two-color printing press cannot replace printing rollers of different widths according to needs during use, and it cannot adjust the parallel distance between printing rollers according to needs, which affects the printing effect.

[0003] There is a Chinese patent with authorization announcement number CN218593928U, which discloses a printing roller adjustment device for a two-color printing press, including a connecting frame, a connecting mechanism and a roller body, wherein the connecting mechanism is slidably connected to the left side of the connecting frame, and the roller body is detachably connected to the right end of the connecting mechanism, and the connecting mechanism is composed of a connecting slider, an electric telescopic rod and a card plate, wherein the electric telescopic rod is embedded and connected to the inner side wall of the connecting slider, and the card plate is detachably connected to the inner side wall of the electric telescopic rod. When in use, the upper and lower heights of the printing roller and the horizontal distance between the roller bodies can be adjusted according to demand, effectively meeting printing needs, improving printing effects, and facilitating printing use.

[0004] Although the technical solution in the above patent document can disassemble and replace the printing roller and adjust the parallel distance between multiple printing rollers through the driving mechanism, in actual use, the driving mechanism is a single-sided structure, and thus there is a risk of the printing roller being misaligned when adjusting the parallel spacing of the printing roller. When assembling the printing roller, the printing roller is clamped and assembled by the electric telescopic rod driving the pallet. This assembly method requires careful calibration of both ends of the printing roller during loading operations. After the calibration is completed and its stability is maintained, the electric telescopic rod can drive the pallet to load it, which is more troublesome to operate.

[0005] Therefore, those skilled in the art provide a printing roller adjustment device for a printing press to solve the problems raised in the above background technology. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a printing roller adjustment device of a printing machine, which realizes synchronous driving of the two sides of the printing roller by means of a bidirectional screw rod arranged on both sides in cooperation with a toothed chain driving member, so as to ensure its translation operation during displacement adjustment and avoid the phenomenon of printing roller deviation. In addition, the two ends of the printing roller realize convenient clip-on loading of the printing roller through a sliding sleeve in cooperation with a corresponding clip-on assembly, thereby reducing the operating burden of the staff and solving the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A printing roller adjustment device for a printing press comprises a mounting frame, and an electric telescopic device fixedly connected to a shell wall at the top of the mounting frame by bolts, a limiting frame is installed at an output end of the electric telescopic device, and two sides of the limiting frame are respectively slidably connected to the inner walls on both sides of the mounting frame, and slide grooves are symmetrically provided on the shell walls on both sides of the limiting frame, and a plurality of carrier plates are slidably connected in each of the slide grooves, and a clamping assembly is fixedly connected to the inner wall of each carrier plate, and a sliding sleeve is clamped on the clamping assembly, and a printing roller for printing is symmetrically connected between the sliding sleeves, and bidirectional screw rods are rotatably connected to the outer walls on both sides of the limiting frame, and the bidirectional screw rods are connected to the carrier plate by a connecting member, and a plurality of bidirectional screw rods are linked by a toothed chain driving member;

[0009] The clamping assembly includes a slide block welded to the inner wall of the carrier plate, a cavity is opened inside the slide block, a plurality of guide rods are arranged in a matrix inside the cavity, a plurality of guide rods are jointly sleeved with slides symmetrically distributed up and down, a plurality of guide rods between the symmetrical slides are sleeved with springs for reset adjustment, a protrusion is installed on the side where the plurality of slides are close to each other, a wedge-shaped clamping block for clamping the slide sleeve is fixedly connected to the side where the plurality of slides are far away from each other, a threaded rod is threadedly connected to the side wall of the slide block, and an end of the threaded rod extending into the cavity is rotatably connected to an adjustment plate.

[0010] As a further solution of the utility model, support plate groups are fixedly connected to the outer walls on both sides of the limit frame, and the support plate group includes two support plates. The two support plates are symmetrically arranged front and back, and the two ends of the bidirectional screw rods on both sides respectively pass through the front and rear support plates in the support plate groups on both sides.

[0011] As a further solution of the utility model, the connecting piece is threadedly connected to the bidirectional screw rod, and the connecting piece is fixedly connected to the outer wall of the carrier plate by bolts.

[0012] As a further solution of the utility model, the toothed chain drive is composed of a motor, a transmission sprocket, a driving sprocket and a chain, wherein there are two transmission sprockets, which are respectively arranged at the back end of the two-way screw rod on both sides, and the motor is installed on the top outer wall of the limit frame through a pad, and the driving sprocket is arranged on the output end of the motor, and the transmission sprocket and the driving sprocket are linked by a chain.

[0013] As a further solution of the utility model, the top and bottom shell walls of the sliding sleeve are both provided with slots, and the upper and lower wedge-shaped blocks respectively pass through the top and bottom shell walls of the cavity on the side away from the slide plate, and are engaged in the slots of the sliding sleeve.

[0014] As a further solution of the utility model, the adjustment plate is composed of a straight plate and an end plate, wherein the end plate is fixedly connected to the right end of the straight plate, the threaded rod is rotatably connected to the right side shell wall of the end plate through a bearing, and the straight plate is symmetrically provided with notched oblique grooves for accommodating the protrusions.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The two sides of the printing roller are synchronously driven by the bidirectional lead screws and the toothed chain driving parts arranged on both sides to ensure the translation operation during the displacement adjustment and avoid the phenomenon of the printing roller being offset. The two ends of the printing roller are conveniently loaded by snap-on loading through the sliding sleeves and the corresponding snap-on components, thereby reducing the operating burden of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a printing roller adjustment device for a printing press Figure 1 ;

[0018] Figure 2 A schematic diagram of the three-dimensional structure of a printing roller adjustment device for a printing press Figure 2 ;

[0019] Figure 3 for Figure 2 A schematic diagram of a partially cutaway structure of a card-joint assembly;

[0020] Figure 4 for Figure 3 Schematic diagram of the structure viewed from above.

[0021] In the figure: 1. mounting frame; 2. electric telescopic device; 3. limiting frame; 4. bidirectional lead screw; 5. toothed chain drive; 51. motor; 52. transmission sprocket; 53. driving sprocket; 6. carrier plate; 7. clamping assembly; 71. slide block; 72. guide rod; 73. slide plate; 74. wedge-shaped clamping block; 75. protrusion; 76. adjustment plate; 77. threaded rod; 8. printing roller; 9. sliding sleeve. DETAILED DESCRIPTION

[0022] See also Figures 1 to 4 In an embodiment of the utility model, a printing roller adjustment device for a printing press includes a mounting frame 1, and an electric telescopic device 2 fixedly connected to the top shell wall of the mounting frame 1 by bolts. A limit frame 3 is installed at the output end of the electric telescopic device 2, and both sides of the limit frame 3 are respectively slidably connected to the inner walls of both sides of the mounting frame 1. The sliding connection of the limit frame 3 in the mounting frame 1 enables it to ensure vertical operation when adjusting with the electric telescopic device 2.

[0023] The two side walls of the limiting frame 3 are symmetrically provided with slide grooves, and a plurality of carrier plates 6 are slidably connected in each slide groove. A clamping assembly 7 is fixedly connected to the inner wall of each carrier plate 6, and a sliding sleeve 9 is clamped on the clamping assembly 7. A printing roller 8 for printing is connected between the symmetrical sliding sleeves 9. The convex shafts at both ends of the printing roller 8 are fixedly connected to the sliding sleeves 9 on both sides, respectively, to realize the assembly between the printing roller 8 and the sliding sleeve 9.

[0024] Bidirectional screw rods 4 are rotatably connected to the outer walls of both sides of the limit frame 3, and the bidirectional screw rods 4 are connected to the carrier plate 6 through a connecting piece. Multiple bidirectional screw rods 4 are linked by a toothed chain driving member 5. The toothed chain driving member 5 links the movement of multiple bidirectional screw rods 4 to achieve synchronous adjustment of both sides of the printing roller 8.

[0025] The clamping assembly 7 includes a slide block 71 welded to the inner wall of the carrier plate 6, and a cavity is formed inside the slide block 71. A plurality of guide rods 72 are arranged in a matrix inside the cavity, and slide plates 73 symmetrically distributed up and down are sleeved on the plurality of guide rods 72. Springs for reset adjustment are sleeved on the plurality of guide rods 72 between the symmetrical slide plates 73.

[0026] A protruding piece 75 is installed on the side where the plurality of slide plates 73 are close to each other, and a wedge-shaped clamping block 74 for clamping the sliding sleeve 9 is fixedly connected on the side where the plurality of slide plates 73 are far away from each other.

[0027] A threaded rod 77 is threadedly connected to the side wall of the slide rail block 71 , and one end of the threaded rod 77 extending into the cavity is rotatably connected to an adjustment plate 76 .

[0028] The outer walls of both sides of the limit frame 3 are fixedly connected with a support plate group, which includes two support plates, and the two support plates are symmetrically arranged front and back. The two ends of the two-way screw rods 4 on both sides respectively penetrate the front and rear support plates in the two-way support plate group. The connecting piece is threadedly connected to the two-way screw rod 4, and the connecting piece is fixedly connected to the outer wall of the carrier plate 6 by bolts. The setting of the support plate group realizes the stable loading of the two-way screw rod 4 on the side of the limit frame 3.

[0029] The toothed chain drive 5 is composed of a motor 51, a transmission sprocket 52, a driving sprocket 53 and a chain. There are two transmission sprockets 52, which are respectively arranged at the back end of the two-way screw rods 4 on both sides. The motor 51 is installed on the top outer wall of the limit frame 3 through a cushion seat, and the driving sprocket 53 is arranged on the output end of the motor 51. The transmission sprocket 52 and the driving sprocket 53 are linked by a chain. The toothed chain drive 5 enables the two-way screw rods 4 arranged on both sides to run synchronously.

[0030] The top and bottom shell walls of the sliding sleeve 9 are provided with slots, and the upper and lower wedge-shaped blocks 74, on the side away from the sliding plate 73, respectively pass through the top and bottom shell walls of the cavity and are engaged in the slots of the sliding sleeve 9. The adjustment plate 76 is composed of a straight plate and an end plate, wherein the end plate is fixedly connected to the right end of the straight plate, and the threaded rod 77 is rotatably connected to the right shell wall of the end plate through a bearing, and the straight plate is provided with a notched oblique groove for accommodating the protruding member 75 in an upper and lower symmetrical manner. The protruding member 75 is composed of a fixed plate and a protruding rod, wherein one end of the fixed plate is arranged on the sliding plate 73, and the protruding rod is arranged at the other end of the fixed plate, and the protruding rod is in sliding contact with the notched oblique groove.

[0031] The working principle of the utility model is: when the spacing of multiple printing rollers 8 is adjusted in parallel, the motor 51 in the toothed chain driving member 5 is turned on, which drives the driving sprocket 53 to rotate, and the transmission sprockets 52 are rotated synchronously under the action of the chain, so that the corresponding bidirectional screw rods 4 move synchronously. The rotation of the bidirectional screw rod 4 causes the various connecting members connected thereto to drive the corresponding carrier plates 6 to move movably, thereby realizing the stable spacing displacement of each printing roller 8.

[0032] When the printing roller 8 needs to be disassembled, the threaded rods 77 in the corresponding clamping assemblies 7 corresponding to the sliding sleeves 9 on both sides are rotated and adjusted. The threaded rods 77 drive the corresponding adjustment plates 76 to adjust the displacement. The adjustment plates 76 are in the process of movement. With the displacement adjustment, the notched bevel grooves on them respectively make sliding contact with the corresponding upper and lower protrusions 75, and then continuously displace with them. The protrusions 75 move in the notched bevel grooves, thereby driving the corresponding slide plates 73 to shrink and adjust. The displacement of the slide plates 73 compresses each spring and drives the wedge-shaped clamping blocks 74 on them to retract into the cavity, thereby canceling the clamping limit of the corresponding sliding sleeves 9, and the printing rollers 8 are disassembled respectively.

[0033] When the printing roller 8 is assembled, the threaded rods 77 in the clamping assemblies 7 on both sides are first adjusted in the opposite direction, so that the adjustment plate 76 is retracted, thereby canceling the contact between the adjustment plate 76 and each protrusion 75, and under the action of the spring, each slide plate 73 drives the wedge-shaped clamping block 74 to reset. After the clamping assembly 7 is reset and adjusted, the sliding sleeves 9 at both ends of the printing roller 8 are aligned with the corresponding slide rail blocks 71 in the clamping assembly 7, and then the sliding sleeves 9 are pushed to load on the slide rail blocks 71, and the wedge-shaped clamping block 74 realizes the automatic clamping and limiting of the sliding sleeve 9 under the action of the spring, so as to realize the convenient assembly of the printing roller 8.

[0034] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A printing roller adjustment device for a printing press, comprising a mounting frame (1), and an electric telescopic device (2) fixedly connected to the top shell wall of the mounting frame (1) by bolts, a limiting frame (3) being installed at the output end of the electric telescopic device (2), and two sides of the limiting frame (3) being slidably connected to the inner walls of two sides of the mounting frame (1), respectively. Features: The two side walls of the limiting frame (3) are symmetrically provided with sliding grooves, each of the sliding grooves is slidably connected with a plurality of carrier plates (6), the inner wall of each carrier plate (6) is fixedly connected with a clamping assembly (7), a sliding sleeve (9) is clamped on the clamping assembly (7), and a printing roller (8) for printing is symmetrically connected between the sliding sleeves (9), and the two side outer walls of the limiting frame (3) are rotatably connected with a bidirectional screw rod (4), the bidirectional screw rod (4) and the carrier plate (6) are connected by a connecting piece, and the plurality of bidirectional screw rods (4) are linked by a toothed chain driving piece (5); The clamping assembly (7) comprises a slide block (71) welded to the inner wall of the carrier plate (6), a cavity is opened inside the slide block (71), a plurality of guide rods (72) are arranged in a matrix inside the cavity, a plurality of guide rods (72) are commonly sleeved with slide plates (73) symmetrically distributed up and down, a plurality of guide rods (72) between the symmetrical slide plates (73) are sleeved with springs for reset adjustment, a protrusion (75) is installed on the side where the plurality of slide plates (73) are close to each other, a wedge-shaped clamping block (74) for clamping the slide sleeve (9) is fixedly connected to the side where the plurality of slide plates (73) are far away from each other, a threaded rod (77) is threadedly connected to the side wall of the slide block (71), and one end of the threaded rod (77) extending into the cavity is rotatably connected to an adjustment plate (76).

2. A printing roller adjustment device for a printing press according to claim 1, It is characterized in that The outer walls of both sides of the limit frame (3) are fixedly connected with a support plate group, the support plate group includes two support plates, and the two support plates are symmetrically arranged front and back. The two ends of the bidirectional screw rods (4) on both sides respectively penetrate the front and rear support plates in the support plate group on both sides.

3. The printing roller adjustment device of a printing press according to claim 1, It is characterized in that The connecting piece is threadedly connected to the bidirectional screw rod (4), and the connecting piece is fixedly connected to the outer wall of the carrier plate (6) by means of bolts.

4. The printing roller adjustment device of a printing press according to claim 1, It is characterized in that The toothed chain driving member (5) is composed of a motor (51), a transmission sprocket (52), a driving sprocket (53) and a chain, wherein the transmission sprocket (52) includes two, which are respectively arranged at one end of the back side of the bidirectional screw rod (4) on both sides, the motor (51) is installed on the top outer wall of the limiting frame (3) through a cushion seat, and the driving sprocket (53) is arranged on the output end of the motor (51), and the transmission sprocket (52) and the driving sprocket (53) are linked by a chain.

5. The printing roller adjustment device of a printing press according to claim 1, It is characterized in that The top and bottom shell walls of the sliding sleeve (9) are both provided with slots, and the upper and lower wedge-shaped blocks (74) on the sides away from the slide plate (73) respectively pass through the top and bottom shell walls of the cavity and are engaged in the slots of the sliding sleeve (9).

6. The printing roller adjustment device of a printing press according to claim 1, It is characterized in that The adjustment plate (76) is composed of a straight plate and an end plate, wherein the end plate is fixedly connected to the right end of the straight plate, and the threaded rod (77) is rotatably connected to the right shell wall of the end plate through a bearing. The straight plate is provided with notched oblique grooves symmetrically arranged up and down for accommodating the protrusion (75).

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