CN217753190U - Inking and ink scraping mechanism of offset press - Google Patents

Abstract

The utility model discloses an inking and wiping mechanism of offset press belongs to lithography apparatus technical field, set up the bracing piece on offset press including both ends, be provided with two drive assemblies on the bracing piece at least, be fixed with respectively on two drive assemblies with offset printing roller complex inking assembly and scrape the mill assembly. The utility model provides a inking and wiping mechanism of offset press adjusts inking assembly and scraping assembly and the degree that compresses tightly between the offset press roller through adjusting first actuating mechanism and second actuating mechanism to it is inconvenient to reduce artifical manual regulation, further improves scraping and inking quality, thereby improves the printing quality, and whole simple science of mechanism accords with present design requirement.

Description

Inking and ink scraping mechanism of offset press

Technical Field

The utility model discloses an inking and wiping mechanism of offset press belongs to lithography apparatus technical field.

Background

An offset printing press is a kind of offset printing press, in which printing images are first printed on a blanket cylinder from a printing plate and then transferred to paper by the blanket cylinder. Offset presses can be divided into sheet-fed offset presses and web-fed offset presses according to different paper feeding modes; the printing color number completed by one-time paper feeding can be divided into single-color, double-color, four-color and multi-color printing machines; the full-paper printing machine can be divided into a small offset press, a six-opening, four-opening, two-opening and full-paper printing machine according to the maximum paper breadth to be printed, and a double-sided printing machine capable of simultaneously finishing two-sided printing by one-time paper feeding is also arranged. The sheet-fed offset press is a lithographic printing press, is used for printing high-grade commercial printed matters and packaging printed matters, and is the mainstream of modern paper printing.

However, the structure of the inking mechanism of the existing offset press is stiff, particularly, inking is uneven, offset printing quality is seriously influenced, in addition, the traditional offset press has poor ink scraping effect, particularly, scraped ink is easy to overflow along an offset printing roller or a port of the offset printing roller corresponding to the offset printing press, offset printing quality is influenced, and the existing inking mechanism and the existing ink scraping mechanism cannot be adjusted, and have poor universality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve current inking mechanism and the poor and poor problem of commonality of wiping effect of the inhomogeneous, the poor and the poor problem of wiping of inking of mechanism, provide an offset press's inking and wiping mechanism.

The utility model discloses the problem that will solve is realized by following technical scheme:

the utility model provides an inking and wiping mechanism of offset press, includes that both ends set up the bracing piece on offset press, be provided with two drive assemblies on the bracing piece at least, be fixed with respectively on two drive assemblies with offset press roller complex inking assembly and scraping assembly.

Preferably, the drive assembly is including fixing the drive housing on the bracing piece, symmetrical arrangement has the same first actuating mechanism and second actuating mechanism of structure in the drive housing, inking assembly and scrape the mill assembly and set up respectively on first actuating mechanism and second actuating mechanism, first actuating mechanism is including rotatory first drive gear and the second drive gear that sets up in the drive housing respectively and mutually support, second drive gear middle part is fixed with first actuating lever one end, it is provided with the second actuating lever still to rotate in the drive housing, second actuating lever one end and first actuating lever other end are articulated with swinging arms middle part and one end respectively, the drive housing outside is fixed with the steering wheel, the main shaft and the first drive gear of steering wheel are coaxial.

Preferably, the inking assembly comprises an inking shell fixed on the inner side of the oscillating rod, a plurality of through holes are formed in the inner side of the inking shell, at least one ink inlet hole is formed in the side face of the inking shell and connected with an external pneumatic ink box, a sponge inking sheet is fixed on the inner side of the inking shell and covers the through holes.

Preferably, the scraping and grinding assembly comprises a scraping and sucking plate arranged on the second driving mechanism, the bottom and the top of the scraping and sucking plate are respectively provided with a scraping port and a plurality of ink sucking ports, and the ink sucking ports are respectively connected with an external pneumatic ink sucking pump.

The utility model discloses for the beneficial effect that has now:

the utility model provides a inking and wiping mechanism of offset press adjusts inking assembly and scraping assembly and the degree that compresses tightly between the offset press roller through adjusting first actuating mechanism and second actuating mechanism to it is inconvenient to reduce artifical manual regulation, further improves scraping and inking quality, thereby improves the printing quality, and whole simple science of mechanism accords with present design requirement.

Drawings

Fig. 1 is an isometric view of the inking and wiping mechanism of an offset printing press according to the present invention.

Fig. 2 is a partial isometric view of the inking and wiping mechanism of an offset printing press according to the present invention.

Fig. 3 is a partial isometric view of the inking and wiping mechanism of an offset printing press according to the present invention.

Fig. 4 is an enlarged view of the inking and wiping mechanism of the offset printing press of the present invention at a.

Fig. 5 is an isometric view of a portion of the inking and wiping mechanism of an offset printing press according to the present invention.

Detailed Description

The invention will be further explained below with reference to the accompanying figures 1 to 5:

the technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, a first embodiment of the present invention provides an inking and wiping mechanism for an offset printing press, including: the offset printing device comprises a supporting rod 1, driving assemblies 2, inking assemblies 4 and scraping assemblies 3, wherein two ends of the supporting rod 1 are respectively installed on an offset printing machine, at least two driving assemblies 2 are installed on the supporting rod 1, in the embodiment, 3 driving assemblies 2,3 are respectively fixed with the inking assemblies 4 and the scraping assemblies 3 matched with an offset printing roller through bolts, and the composition and the connection relationship of the components are described in detail below.

As shown in fig. 2-3, the driving assembly 2 includes a driving housing 21 having one end fixed on the supporting rod 1 by a bolt, a first driving mechanism 22 and a second driving mechanism 23 with the same structure are symmetrically disposed in the driving housing 21, and the inking assembly 4 and the scraping assembly 3 are respectively mounted on the first driving mechanism 22 and the second driving mechanism 23.

Because the first driving mechanism 22 and the second driving mechanism 23 have the same structure, the first driving mechanism 22 is described in detail below by taking the first driving mechanism 22 as an example, and includes a first driving gear 225 and a second driving gear 226 which are respectively rotatably installed in the driving housing 21 and are matched with each other, the middle portion of the second driving gear 226 is fixed with one end of a first driving rod 222, a second driving rod 223 is further rotatably installed in the driving housing 21, one end of the second driving rod 223 and the other end of the first driving rod 222 are respectively hinged with the middle portion and one end of a swinging rod 224, a steering engine 221 is fixed on the outer side of the driving housing 21 through bolts, and a main shaft of the steering engine 221 is coaxial with the first driving gear 225. During the use, the main shaft of steering wheel 221 drives first drive gear 225 and rotates, and first drive gear 225 drives second drive gear 226 and rotates, and second drive gear 226 drives first actuating lever 222 and rotates, and first actuating lever 222 drives second actuating lever 223 and swinging arms 224 and rotates to swinging arms 224 drive inking assembly 4 and remove, adjust inking assembly 4 and offset printing roller between compress tightly the degree. Similarly, the first drive mechanism 22 is adjusted to adjust the degree of compression between the squeegee assembly 3 and the offset printing roller as described above.

Next, describing the inking assembly 4 and the scraping and grinding assembly 3, as shown in fig. 4, the inking assembly 4 includes an inking housing 42 fixed on the inner side of the swing lever 224 by bolts, the inner side of the inking housing 42 is provided with a plurality of through holes, the side of the inking housing 42 is provided with at least one ink inlet 421, the ink inlet 421 is connected with an external pneumatic ink cartridge, the inner side of the inking housing 42 is fixedly bonded with a sponge inking sheet 41, the sponge inking sheet 41 covers the plurality of through holes, the pneumatic ink cartridge enters the inking housing 42 through the ink inlet 421, the ink invades the sponge inking sheet 41 through the plurality of through holes, and the sponge inking sheet 41 is bonded with the offset printing roller for inking.

As shown in fig. 5, the scraping and grinding assembly 3 includes a scraping and sucking plate 31 installed on the second driving mechanism 23, the bottom and top of the scraping and sucking plate 31 are respectively provided with a scraping port 33 and a plurality of ink absorbing ports 32, the plurality of ink absorbing ports 32 are respectively connected with an external pneumatic ink absorbing pump, and the inner sides of the inking housing 42 and the scraping and sucking plate 31 are both conformal with the offset printing roller. When the ink scraping device is used, the ink scraping port 33 is attached to the offset printing roller to scrape ink, and then the scraped ink is sucked away through an external pneumatic ink sucking pump.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims (4)

1. The inking and ink scraping mechanism of the offset press is characterized by comprising supporting rods (1) with two ends arranged on the offset press, wherein at least two driving assemblies (2) are arranged on the supporting rods (1), and an inking assembly (4) and a scraping and grinding assembly (3) matched with an offset printing roller are respectively fixed on the two driving assemblies (2).

2. The inking and wiping mechanism of the offset printing machine as claimed in claim 1, wherein the driving assembly (2) comprises a driving housing (21) fixed on the support rod (1), a first driving mechanism (22) and a second driving mechanism (23) which are identical in structure are symmetrically arranged in the driving housing (21), the inking assembly (4) and the wiping assembly (3) are respectively arranged on the first driving mechanism (22) and the second driving mechanism (23), the first driving mechanism (22) comprises a first driving gear (225) and a second driving gear (226) which are respectively and rotationally arranged in the driving housing (21) and are mutually matched, the middle of the second driving gear (226) is fixed with one end of the first driving rod (222), a second driving rod (223) is further rotationally arranged in the driving housing (21), one end of the second driving rod (223) and the other end of the first driving rod (222) are respectively hinged with the middle of the swing rod (224) and one end of the swing rod (224), the outer side of the driving housing (21) is fixed with the steering engine (221), and the main shaft (225) is coaxial with the first driving gear (225).

3. The inking and wiping mechanism of an offset printing press according to claim 1 or 2, wherein the inking assembly (4) comprises an inking housing (42) fixed inside the swing lever (224), a plurality of through holes are formed inside the inking housing (42), at least one ink inlet hole (421) is formed in the side surface of the inking housing (42), the ink inlet hole (421) is connected with an external pneumatic ink cartridge, a sponge inking sheet (41) is fixed inside the inking housing (42), and the sponge inking sheet (41) covers the plurality of through holes.

4. The inking and wiping mechanism of an offset printing machine according to claim 3, wherein said wiping unit (3) comprises a wiping suction plate (31) provided on said second driving mechanism (23), said wiping suction plate (31) being provided at a bottom and a top thereof with a wiping port (33) and a plurality of suction ports (32), respectively, said plurality of suction ports (32) being connected to an external pneumatic suction pump, respectively.

Images