CN215438980U

CN215438980U - Tensioning device of gravure printing machine and gravure printing machine

Info

Publication number: CN215438980U
Application number: CN202121330205.8U
Authority: CN
Inventors: 范修建
Original assignee: Jiangmen Jingcheng Packaging Printing Co ltd
Current assignee: Jiangmen Jingcheng Packaging Printing Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-01-07
Anticipated expiration: 2031-06-15

Abstract

The utility model discloses a tensioning device of an intaglio printing press and the intaglio printing press, wherein the tensioning device of the intaglio printing press is arranged on the intaglio printing press, the tensioning device of the intaglio printing press comprises a tensioning roller and screw rods penetrating through two ends of the tensioning roller, the tensioning roller can move and be adjusted along the axial direction of the screw rods along with the rotation of the screw rods, a driving shaft is arranged between the two screw rods, and the driving shaft is simultaneously in transmission connection with the two screw rods so as to control the two screw rods to synchronously rotate. The utility model can control the screw rods at the two ends of the tensioning roller to synchronously rotate through the driving shaft, thereby controlling the tensioning roller to stably move along the axial direction of the screw rods, facilitating the tensioning adjustment of workers according to the actual tensioning condition of the film and solving the defects of the traditional structure.

Description

Tensioning device of gravure printing machine and gravure printing machine

Technical Field

The utility model relates to printing equipment, in particular to a tensioning device of an intaglio printing machine and the intaglio printing machine.

Background

The gravure printing machine is printing equipment adopting a gravure roller to print, when the gravure printing machine works, ink is conveyed to the gravure roller through an ink transfer roller, redundant ink on the gravure roller is scraped through a scraper, the gravure roller is attached to a pressing roller, and a film passes through the space between the pressing roller and the gravure roller to complete printing. In order to ensure the tensioning of the film in the printing process, the gravure printing machine is provided with a plurality of tensioning rollers at the front end and the rear end of a gravure roller cylinder, but the positions of the tensioning rollers in the traditional gravure printing machine cannot be adjusted, and the tensioning rollers cannot be adjusted according to the actual condition of the film in actual work, so that the tension of the film is insufficient in part of the time, and the printing quality is influenced.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. To this end, the utility model proposes, in a first aspect, a tensioning device for an intaglio printing press, able to be adjusted according to the actual conditions of the film, ensuring the tension of the film.

In a second aspect, the present invention provides an intaglio printing press capable of solving the problem of insufficient film tension and ensuring printing quality.

According to the embodiment of the first aspect of the utility model, the tensioning device of the gravure printing machine comprises a tensioning roller and screw rods penetrating through two ends of the tensioning roller, the tensioning roller can move and adjust along the axial direction of the screw rods along with the rotation of the screw rods, and a driving shaft is arranged between the two screw rods and is simultaneously in transmission connection with the two screw rods so as to control the two screw rods to rotate synchronously.

According to the embodiment of the utility model, at least the following technical effects are achieved:

the utility model adopting the structure can control the screw rods at the two ends of the tensioning roller to synchronously rotate through the driving shaft, thereby controlling the tensioning roller to stably move along the axial direction of the screw rods, facilitating the tensioning adjustment of workers according to the actual tensioning condition of the film and solving the defects of the traditional structure.

According to some embodiments of the utility model, an adjusting seat is arranged on the screw rod in a penetrating way, and the end part of the tension roller is detachably connected to the adjusting seat.

According to some embodiments of the utility model, the adjusting seat is provided with a U-shaped groove with an open upper end, the bottom of the adjusting seat is upwards penetrated by a hand-screwed bolt, a thread section of the hand-screwed bolt extends into the U-shaped groove, and the end of the tensioning roller is matched with the U-shaped groove and is provided with a threaded hole matched with the hand-screwed bolt.

According to some embodiments of the utility model, the tensioning device of the intaglio printing press further comprises two parallel baffles, two lead screws are arranged at the opposite ends of the two baffles, and two ends of the tensioning roller correspondingly penetrate through the two baffles and are connected with the lead screws, so that a film passing area is formed between the two baffles.

According to some embodiments of the utility model, the baffle is provided with a yielding opening through which the tension roller passes, a circle of enclosing plate is arranged around the yielding opening, an adjusting rod penetrates through the enclosing plate, one end of the adjusting rod is located on the inner side of the enclosing plate and is provided with a first bearing bush made of rubber, a spring is sleeved on a part of the adjusting rod located between the first bearing bush and the enclosing plate, and the other end of the adjusting rod extends to the outer side of the enclosing plate and is provided with a cross rod.

According to some embodiments of the utility model, the size of the relief opening is larger than the outer diameter of the tension roller, and a second bearing bush made of rubber is arranged on a part of the inner wall of the enclosing plate, which is opposite to the first bearing bush.

According to some embodiments of the utility model, the screw and the drive shaft are driven by a bevel gear set.

According to some embodiments of the utility model, the screw rod is arranged vertically, the screw rod is provided with a dirt removing plate near the lower end, the dirt removing plate is arranged obliquely relative to the vertical direction, one end of the dirt removing plate, which is close to the screw rod, abuts against the screw rod and is provided with a tooth part matched with the thread groove of the screw rod, and the bottom of the dirt removing plate is provided with a dirt discharging channel.

An intaglio printing press according to an embodiment of the second aspect of the present invention is provided with the tensioner of the intaglio printing press of any of the above-described configurations.

according to the gravure printing machine, by arranging the tensioning device of the gravure printing machine with the structure, workers can adjust the position of the tensioning roller according to the actual tensioning condition of the film, so that the tensioning degree of the film is adjusted, and the printing quality is ensured.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of an overall structure of the present invention;

FIG. 2 is a schematic view of an adjustment block;

FIG. 3 is a schematic view of a baffle plate configuration;

fig. 4 is a schematic view of a structure of the trash removal plate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the utility model provides a tensioning device of an intaglio printing press, which includes a tensioning roller 100 and screw rods 101 penetrating through two ends of the tensioning roller 100, wherein the tensioning roller 100 can move and adjust along the axial direction of the screw rods 101 along with the rotation of the screw rods 101, a driving shaft 102 is arranged between the two screw rods 101, and the driving shaft 102 is simultaneously in transmission connection with the two screw rods 101 for controlling the two screw rods 101 to rotate synchronously.

According to the utility model with the structure, the screw rods 101 at two ends of the tensioning roller 100 can be controlled to synchronously rotate through the driving shaft 102, so that the tensioning roller 100 is controlled to stably move along the axial direction of the screw rods 101, therefore, a worker can conveniently perform tensioning adjustment according to the actual tensioning condition of a film, and the defects of the traditional structure are overcome.

In practice, the screw 101 and the drive shaft 102 are both mounted on the frame of the intaglio printing press. In the maintenance and inspection of the equipment, if the screw 101 and the drive shaft 102 need to be attached and detached as well when the tension roller 100 is attached and detached, the difficulty of attachment and detachment is considered to be excessive. In order to reduce the difficulty in assembling and disassembling the tension roller 100, in some embodiments of the present invention, an adjusting seat 103 is disposed on the screw rod 101, and an end of the tension roller 100 is detachably connected to the adjusting seat 103. In practical application, after the screw 101 and the driving shaft 102 are mounted on a frame of an intaglio printing press, the connecting point between the tension roller 100 and the adjusting seat 103 can be dismounted when the tension roller 100 is dismounted, and the screw 101 and the driving shaft 102 do not need to be dismounted. And adjust and to dismantle between seat 103 and the tensioning roller 100 and be connected, can all unpack two lead screws 101 and tensioning roller 100 apart when the transportation, pack alone and transport, can be at utmost avoid lead screw 101 impaired in the transportation. Meanwhile, when the screw rod 101 is installed on a rack of the gravure printing machine, and then the tensioning roller 100 is installed on the adjusting seat 103, so that the installation difficulty is low, and the assembly efficiency is improved.

In some embodiments of the present invention, the adjusting base 103 is provided with a U-shaped groove 106 with an open upper end, the bottom of the adjusting base 103 is upwardly penetrated by a hand-screwed bolt 107, a thread section of the hand-screwed bolt 107 extends into the U-shaped groove 106, and the end of the tension roller 100 is adapted to the U-shaped groove 106 and is provided with a threaded hole matched with the hand-screwed bolt 107. The tension roller 100 can be put into the U-shaped groove 106 from the open end thereof, and then the screw holes are connected by screwing the bolts 107 by hand, thereby completing the fixing of the tension roller 100. Adopt the structure setting in this embodiment, adjust seat 103 and can effectively support tensioning roller 100 to the hand is twisted bolt 107 and can not receive shearing effort, job stabilization at the in-process of locking tensioning roller 100. Meanwhile, in consideration of an actual floor space of the gravure printing machine, it is preferable to vertically dispose the lead screw 101 so that the tension roller 100 can be vertically adjusted up and down to reduce the floor space. In this case, the hand-threaded bolt 107, which is pierced upward, facilitates the worker's rotation adjustment, especially when raised to a high position.

In order to ensure the smoothness of the rotation of the screw 101 and the cooperation of the tension roller 100, a worker usually applies grease or oil on the screw 101 for lubrication, and in order to avoid the film from contacting the lubricating oil on the screw 101 when the film is wound around the tension roller 100 or during normal printing operation, in some embodiments of the present invention, the tensioning device of the gravure printing machine further includes two baffles 104 arranged in parallel, the two screw 101 are located at the ends of the two baffles 104, and the two ends of the tension roller 100 correspondingly penetrate the two baffles 104 and are connected with the screw 101, so as to form a film passing area between the two baffles 104. By adopting the structure arrangement in the embodiment, the film passing area can be formed on the tension roller 100 through the two baffle plates 104, and the block is formed between the film and the screw rod 101, so that the contact with the screw rod 101 during the film winding or the normal printing operation can be avoided. Meanwhile, the baffle 104 also has a certain deviation rectifying function.

The baffle 104 may be mounted to the frame by welding or screwing during actual assembly so that it is not in direct connection with the tension roller 100.

The baffle 104 may also be mounted directly to the tension roller 100. In order to cope with the film having different widths, the baffle 104 is movably and adjustably mounted on the tension roller 100 in the axial direction of the tension roller 100 in some embodiments, in consideration of the variation of the width of the passing film in practical use.

Specifically, the baffle 104 is provided with a yielding opening for the tensioning roller 100 to pass through, the baffle 104 is provided with a circle of surrounding plate 105 around the yielding opening, an adjusting rod (not marked due to the shielding of the visual angle in fig. 3) penetrates through the surrounding plate 105, one end of the adjusting rod is located on the inner side of the surrounding plate 105 and provided with a first bearing bush 109 made of rubber, a spring (not marked due to the shielding of the visual angle in fig. 3) is sleeved on the portion, located between the first bearing bush 109 and the surrounding plate 105, of the adjusting rod, and the other end of the adjusting rod extends to the outer side of the surrounding plate 105 and is provided with a cross rod 110. Under the normal condition, first axle bush 109 pushes down the tensioning roller 100 in the effect of spring, ensures the stability of baffle 104, when needs adjust, only needs to carry the effort that draws horizontal pole 110 to overcome the spring, can make first axle bush 109 and tensioning roller 100 separate for baffle 104 can freely move, loosens horizontal pole 110 after removing to suitable position and can hold tightly tensioning roller 100 again through first axle bush 109.

In practical applications, the tension roller 100 generally has two structural forms, and the following description is provided for the preferred arrangement of the baffle 104 corresponding to the two different forms of tension roller 100.

The first is a structure form that the tension roller 100 cannot rotate, and the tension roller 100 is directly fixed and has a smooth surface, and the film is rubbed from the surface when passing through the tension roller 100. In such a structure, the baffle plate 104 may be directly held by the tension roller 100 by the above-described structure, and when the baffle plate 104 is moved, since the outer diameter of the tension roller 100 is kept constant, no special attention is paid.

The second is a configuration in which the tension roller 100 is rotatable. Such a tension roller 100 includes a mandrel, both ends of which are fixed and mounted, and a sleeve rotatably provided on the mandrel through bearings. In this type of construction, the sleeve is larger in size than the mandrel and rotates as the film passes around, so the baffles 104 preferably hug the mandrel at both ends.

In order to improve the mounting stability of the baffle 104, in some embodiments of the present invention, the size of the seat is larger than the outer diameter of the tension roller 100, and a second bearing 108 made of rubber is disposed on the inner wall of the enclosure 105 opposite to the first bearing 109. The second shoe 108 may be adhesively secured to the inside wall of the shroud 105 to engage the first shoe 109 to hug the tension roller 100.

It is understood that, in order to ensure the stability of the baffle 104, the widths of the first and

second bearing shoes

109 and 108 may be increased appropriately, for example, kept at 3cm or more, so as to avoid the baffle 104 from deflecting and shaking.

Since the driving shaft 102 drives two lead screws 101 at the same time, in some embodiments of the present invention, the axial direction of the lead screws 101 is perpendicular to the axial direction of the driving shaft 102, and the transmission between the lead screws and the driving shaft 102 is performed through a bevel gear set.

In combination with the above analysis, in order to reduce the floor space, in some embodiments of the present invention, the screw rod 101 is vertically disposed, the screw rod 101 is provided with a cleaning plate 111 near the lower end, the cleaning plate 111 is disposed obliquely with respect to the vertical direction, one end of the cleaning plate 111 near the screw rod 101 abuts against the screw rod 101 and has a tooth portion 112 adapted to the thread groove of the screw rod 101, and the bottom of the cleaning plate 111 is provided with a sewage discharge channel 113. Because the lead screw 101 can paint lubricating oil, along with the extension of operating time, the accumulations that lubricating oil and dust mix can appear in lead screw 101 bottom, if not clear up in time then drip to ground or drop on the roller that is located lead screw 101 below on the gravure press easily, when the workman uses cloth or paper handkerchief to wipe off, the accumulations moves along the thread groove of lead screw 101 easily, and the effect of cleaing away is not ideal enough. By adopting the structure arrangement in the embodiment, through the arrangement of the tooth part 112 on the dirt-removing plate 111, when the screw rod 101 rotates or in the process that the lubricating oil spreads downwards under the action of gravity, the lubricating oil automatically enters the surface of the tooth part 112 from the thread groove of the screw rod 101 and then falls downwards into the dirt-removing channel 113 along the surface of the dirt-removing plate 111. Meanwhile, in the process of cleaning by using cloth or paper towels, the accumulated matters can be pushed onto the dirt removing plate 111, and finally the accumulated matters in the dirt removing channel 113 are uniformly removed.

The present invention also provides an intaglio printing press provided with the tensioner of the intaglio printing press according to any one of the above embodiments.

According to the gravure printing machine, by arranging the tensioning device of the gravure printing machine with the structure, workers can adjust the position of the tensioning roller 100 according to the actual tensioning condition of the film, so that the tensioning degree of the film is adjusted, and the printing quality is ensured.

In the utility model, the driving shaft 102 can be driven by a motor or can be controlled to rotate in a form of a hand-operated lever.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides an intaglio press's overspeed device tensioner, its characterized in that includes the tensioning roller and wears to establish the lead screw at tensioning roller both ends, the tensioning roller can follow the rotation of lead screw is followed the axial displacement of lead screw is adjusted, and two be provided with the drive shaft between the lead screw, the drive shaft simultaneously with two the lead screw transmission is connected, in order to be used for controlling two the synchronous rotation of lead screw.

2. The tensioner of intaglio printing press according to claim 1, wherein said screw is pierced with an adjustment seat on which the end of said tensioning roller is removably connected.

3. The tensioner of intaglio printing press as recited in claim 2, wherein the adjustment base is provided with a U-shaped groove with an open upper end, a hand-threaded bolt is upwardly inserted into the bottom of the adjustment base, a thread section of the hand-threaded bolt extends into the U-shaped groove, and an end of the tension roller is adapted to the U-shaped groove and is provided with a threaded hole matched with the hand-threaded bolt.

4. The tensioner of an intaglio printing press according to claim 1, further comprising two parallel baffles, two of said screw rods being located at the end of the two baffles facing away from each other, and wherein the two ends of said tension roller are respectively passed through the two baffles and connected to said screw rods, thereby forming a film passing region between the two baffles.

5. The tensioning device of the intaglio printing press according to claim 4, characterized in that the baffle is provided with an abdication opening for the tensioning roller to pass through, and the baffle surrounds the abdication opening and is provided with a circle of bounding wall, wear to be equipped with the regulation pole on the bounding wall, adjust pole one end and be located the first axle bush of rubber material is inboard and be provided with to the bounding wall, adjust the pole be located first axle bush with the part cover between the bounding wall is equipped with the spring, adjust the pole other end extend in the bounding wall outside and be provided with the horizontal pole.

6. The tensioner of an intaglio printing press according to claim 5, wherein the relief opening has a size larger than the outer diameter of the tension roller, and a second bushing made of rubber is provided on a portion of the inner wall of the shroud opposite to the first bushing.

7. Tensioner according to claim 1, characterized in that the transmission between the screw and the driving shaft is performed by means of a set of bevel gears.

8. The tensioner of intaglio printing press as recited in claim 1, characterized in that said screw rod is vertically arranged, said screw rod being provided near a lower end with a dirt-removing plate, said dirt-removing plate being arranged inclined with respect to the vertical, one end of said dirt-removing plate near said screw rod abutting said screw rod and having teeth adapted to the thread groove of said screw rod, a bottom of said dirt-removing plate being provided with a dirt discharge channel.

9. An intaglio printing press characterized in that a tensioning device of the intaglio printing press according to any one of claims 1 to 8 is provided.