CN212400579U

CN212400579U - Printing machine frame positioning structure

Info

Publication number: CN212400579U
Application number: CN202020770000.0U
Authority: CN
Inventors: 翟国瑞
Original assignee: Beijing Yihui Printing Co ltd
Current assignee: Beijing Yihui Printing Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2021-01-26
Anticipated expiration: 2030-05-11

Abstract

A frame positioning structure of a printing machine comprises a base, a first frame body, a second frame body, a third frame body and a fourth frame body; the base is arranged on the ground; the first frame body, the second frame body, the third frame body and the fourth frame body form a frame; the left side and the right side of the first frame body, the second frame body, the third frame body and the fourth frame body are respectively provided with a through groove; the first frame body, the second frame body, the third frame body and the fourth frame body are respectively provided with a locking screw and a rotating shaft; the rotating shaft penetrates through the through groove, and the bottom of the rotating shaft is fixedly arranged on the base; a printing plate cylinder is arranged on the frame; a limiting plate is sleeved on one side of the connecting piece, which penetrates through the mounting groove of the plate cylinder; one side of the limiting plate, which faces the rack, is provided with a hemispherical roller; a sliding groove is arranged on the frame, and the roller is in sliding connection with the sliding groove in a matching manner; the other side of the limiting plate is provided with a tooth groove, and the tooth groove is in meshing transmission connection with the transmission assembly; the utility model discloses simple structure, the installation degree of accuracy is high, and it is more convenient to install.

Description

Printing machine frame positioning structure

Technical Field

The utility model relates to a lithography apparatus technical field especially relates to a printing machine frame location structure.

Background

In order to enable the ink to distinguish between the image and non-image portions of the printing plate during printing, the non-image portion of the printing plate is first supplied with water by the water supply means of the printing plate member, thereby protecting the non-image portion of the printing plate from the ink. Ink is then supplied to the printing plate by an ink supply of the printing element, and since the non-image portion of the printing plate is protected by the water, ink is only supplied to the image portion of the printing plate. Finally, the printing ink on the printing plate is transferred to a rubber blanket, and the printing ink on the rubber blanket is transferred to a printing stock by utilizing the pressure between a rubber cylinder and an impression cylinder to finish one-time printing, so the offset printing is an indirect printing mode; a plate cylinder, a blanket cylinder and an impression cylinder of the lithographic printing equipment are all arranged on a frame, the frame needs to be moved when the plate cylinder is replaced, and the frame needs to be accurately positioned when being reset; most of the frame positioning structures in the prior art are complex in structure and difficult to operate.

In order to solve the problem, the application provides a printing machine frame positioning structure.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

In order to solve the problems that a plate cylinder, a blanket cylinder and an impression cylinder of lithographic equipment in the background technology are all arranged on a frame, the frame needs to be moved when the plate cylinder is replaced, and the frame needs to be accurately positioned when being reset; the most structure of the frame location structure among the prior art is complicated, operates the big technical problem of the degree of difficulty, the utility model provides a printing machine frame location structure, the utility model discloses simple structure, the installation degree of accuracy is high, and it is more convenient to install.

(II) technical scheme

In order to solve the problems, the utility model provides a frame positioning structure of a printing machine, which comprises a base, a first frame body, a second frame body, a third frame body and a fourth frame body;

the base is arranged on the ground; the first frame body, the second frame body, the third frame body and the fourth frame body are sequentially arranged on the base from top to bottom; the first frame body, the second frame body, the third frame body and the fourth frame body form a frame; the left side and the right side of the first frame body, the second frame body, the third frame body and the fourth frame body are respectively provided with a through groove; the first frame body, the second frame body, the third frame body and the fourth frame body are respectively provided with a locking screw and a rotating shaft; the rotating shaft penetrates through the through groove, and the bottom of the rotating shaft is fixedly arranged on the base; the first frame body, the second frame body, the third frame body and the fourth frame body rotate around the rotating shaft; a transverse plate is arranged at the top of the locking screw rod, the locking screw rod penetrates through the through groove and is in threaded fit connection with the base, and the locking screw rod is parallel to the rotating shaft;

a printing plate cylinder mounting groove is preset on the first frame body and the second frame body; rubber roller mounting grooves are preset on the second frame body and the third frame body; the third frame body and the fourth frame body are provided with impression cylinder mounting grooves in advance; the printing plate cylinder mounting groove, the blanket cylinder mounting groove and the impression cylinder mounting groove have the same structure; a printing plate cylinder is arranged on the frame; a limiting plate is sleeved on one side of the connecting piece, which penetrates through the mounting groove of the plate cylinder; one side of the limiting plate, which faces the rack, is provided with a hemispherical roller; a sliding groove is arranged on the frame, and the roller is in sliding connection with the sliding groove in a matching manner; and the other side of the limiting plate is provided with a tooth groove, and the tooth groove is in meshing transmission connection with the transmission assembly.

Preferably, a supporting spring is arranged on one side of the roller embedded into the limiting plate; the support spring is held in a compressed state.

Preferably, the bottoms of the first frame body, the second frame body and the third frame body are provided with positioning pins; the top of second support body, third support body and second support body all is provided with the constant head tank.

Preferably, the positioning pin is inserted into the positioning groove in a matching manner.

Preferably, an elastic part is arranged in the positioning groove, and a pressing plate is arranged at the top of the elastic part.

Preferably, the first frame body, the second frame body and the third frame body are all provided with a limiting piece.

Preferably, the limiting part comprises a magnetic attraction plate, a first supporting plate, a second supporting plate and a rotating part; the limiting piece rotates 0 to 180 degrees around the rotating piece; the magnetic attraction plate is magnetically attracted with the first frame body, the second frame body and the third frame body; be provided with on the first backup pad with constant head tank complex arch, be provided with in the second backup pad with locating pin complex recess.

The above technical scheme of the utility model has following profitable technological effect: in the utility model, the base is arranged on the ground; the first frame body, the second frame body, the third frame body and the fourth frame body are sequentially arranged on the base from top to bottom; the left side and the right side of the first frame body, the second frame body, the third frame body and the fourth frame body are respectively provided with a through groove; the rotating shaft and the locking screw rod both penetrate through the through groove, and the locking screw rod and the rotating shaft are parallel to each other; when the plate cylinder needs to be replaced, the locking screw is loosened, and the first frame body is pushed upwards; rotating the limiting piece 180 degrees around the rotating piece, wherein a first support plate on the limiting piece is matched with a positioning groove on the second frame body, and a second support plate is matched with a positioning pin on the first frame body; rotating the first frame body to enable the first frame body to rotate 90-180 degrees around the rotating shaft; the plate cylinder can be easily taken out from the plate cylinder mounting groove; when the plate cylinder is replaced, the roller on the connecting piece limiting plate is matched and clamped into the sliding groove on the rack; the supporting spring in the limiting plate ensures that the roller is tightly attached to the sliding chute; the position of the plate cylinder is ensured to be fixed; then, the first frame body is rotated back, and the locking screw rod is rotated downwards to ensure that the first frame body and the second frame body, the second frame body and the third frame body, and the third frame body and the fourth frame body are fixed tightly; the utility model discloses simple structure, the installation degree of accuracy is high, and it is more convenient to install.

Drawings

Fig. 1 is the structural schematic diagram of the frame positioning structure of the printing machine provided by the utility model.

Fig. 2 is the utility model provides a mounting structure schematic diagram of locating pin and constant head tank among the printing machine frame location structure.

Fig. 3 is a schematic view of the mounting structure of the plate cylinder in the positioning structure of the printing machine frame according to the present invention.

Fig. 4 is a schematic structural view of the enlarged locating part in the positioning structure of the printer frame according to the present invention.

Fig. 5 is the utility model provides an inner structure schematic diagram of limiting plate among printing machine frame location structure.

Reference numerals: 1. a first frame body; 2. a second frame body; 3. a third frame body; 4. a fourth frame body; 5. a base; 6. locking the screw rod; 7. a plate cylinder mounting slot; 8. a blanket cylinder mounting groove; 9. an impression cylinder mounting groove; 10. a rotating shaft; 11. a limiting member; 111. a magnetic attraction plate; 112. a first support plate; 113. a second support plate; 114. a rotating member; 12. positioning pins; 13. positioning a groove; 14. pressing a plate; 15. an elastic member; 16. a plate cylinder; 17. a connecting member; 18. a limiting plate; 19. a roller; 20. a chute; 21. a tooth socket; 22. supporting the spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-5, the present invention provides a frame positioning structure for a printing machine, which includes a base 5, a first frame 1, a second frame 2, a third frame 3 and a fourth frame 4;

the base 5 is arranged on the ground; the first frame body 1, the second frame body 2, the third frame body 3 and the fourth frame body 4 are sequentially arranged on the base 5 from top to bottom; the first frame body 1, the second frame body 2, the third frame body 3 and the fourth frame body 4 form a frame; through grooves are formed in the left side and the right side of the first frame body 1, the second frame body 2, the third frame body 3 and the fourth frame body 4; the first frame body 1, the second frame body 2, the third frame body 3 and the fourth frame body 4 are respectively provided with a locking screw rod 6 and a rotating shaft 10; the rotating shaft 10 penetrates through the through groove, and the bottom of the rotating shaft 10 is fixedly arranged on the base 5; the first frame body 1, the second frame body 2, the third frame body 3 and the fourth frame body 4 rotate around the rotating shaft 10; a transverse plate is arranged at the top of the locking screw 6, the locking screw 6 penetrates through the through groove and is in threaded fit connection with the base 5, and the locking screw 6 is parallel to the rotating shaft 10;

a printing plate cylinder mounting groove 7 is preset on the first frame body 1 and the second frame body 2; rubber roller mounting grooves 8 are preset on the second frame body 2 and the third frame body 3; the third frame body 3 and the fourth frame body 4 are provided with an impression cylinder mounting groove 9 in advance; the plate cylinder mounting groove 7, the blanket cylinder mounting groove 8 and the impression cylinder mounting groove 9 have the same structure; a plate cylinder 16 is arranged on the frame; a connecting piece 17 is arranged on the plate cylinder 16, and a limiting plate 18 is sleeved on one side of the connecting piece 17, which penetrates through the plate cylinder mounting groove 7; one side of the limiting plate 18 facing the rack is provided with a hemispherical roller 19; a sliding groove 20 is arranged on the frame, and the roller 19 is in sliding connection with the sliding groove 20 in a matching manner; the other side of the limiting plate 18 is provided with a tooth groove 21, and the tooth groove 21 is in meshing transmission connection with the transmission assembly.

In the utility model, the base 5 is arranged on the ground; the first frame body 1, the second frame body 2, the third frame body 3 and the fourth frame body 4 are sequentially arranged on the base 5 from top to bottom; through grooves are formed in the left side and the right side of the first frame body 1, the second frame body 2, the third frame body 3 and the fourth frame body 4; the rotating shaft 10 and the locking screw 6 both penetrate through the through groove, and the locking screw 6 is parallel to the rotating shaft 10; when the plate cylinder 16 needs to be replaced, the locking screw 6 is loosened, and the first frame body 1 is pushed upwards; rotating the limiting member 11 180 degrees around the rotating member 114, the first supporting plate 112 on the limiting member 11 is matched with the positioning slot 13 on the second frame body, and the second supporting plate 113 is matched with the positioning pin 12 on the first frame body 1; rotating the first frame body 1 to rotate 90-180 degrees around the rotating shaft 10; the plate cylinder 16 can now be easily removed from the plate cylinder mounting slot 7; when the plate cylinder 16 is replaced, the roller 19 on the limiting plate 18 of the connecting piece 17 is matched and clamped into the chute 20 on the frame; the supporting spring 22 in the limiting plate 18 ensures that the roller 19 is tightly attached to the chute 20; ensuring that the plate cylinder 16 is stationary; then, the first frame body 1 is rotated back, and the locking screw 6 is rotated downwards to ensure that the first frame body 1 and the second frame body 2, the second frame body 2 and the third frame body 3, and the third frame body 3 and the fourth frame body 4 are fixed tightly; the utility model discloses simple structure, the installation degree of accuracy is high, and it is more convenient to install.

In an alternative embodiment, the side of the roller 19 embedded inside the limit plate 18 is provided with a support spring 22; the support spring 22 is kept in a compressed state.

It should be noted that the supporting spring 22 ensures that the roller 19 is tightly attached to the sliding groove 20.

In an alternative embodiment, the bottoms of the first frame body 1, the second frame body 2 and the third frame body 3 are all provided with positioning pins 12; the top of second support body 2, third support body 3 and second support body 2 all is provided with constant head tank 13. The positioning pin 12 is inserted into the positioning groove 13 in a matching manner.

It should be noted that the positioning pins 12 and the positioning grooves 13 ensure that the mounting positions of the first frame body 1, the second frame body 2 and the third frame body 3 are accurate.

In an alternative embodiment, a resilient member 15 is provided in the positioning groove 13, and a pressing plate 14 is provided on the top of the resilient member 15.

It should be noted that the elastic member 15 and the pressing plate 14 ensure that the first frame body 1, the second frame body 2, and the third frame body 3 are tightly installed without any gap, so as to prevent shaking.

In an alternative embodiment, the first frame 1, the second frame 2 and the third frame 3 are provided with a limiting member 11.

In an alternative embodiment, the limiting member 11 comprises a magnetic attraction plate 111, a first support plate 112, a second support plate 113 and a rotation member 114; the limiting member 11 rotates 0-180 degrees around the rotating member 114; the magnetic attraction plate 111 and the first frame body 1, the second frame body 2 and the third frame body 3 are magnetically attracted; the first support plate 112 is provided with a protrusion matched with the positioning slot 13, and the second support plate 113 is provided with a groove matched with the positioning pin 12.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A printing machine frame positioning structure is characterized by comprising a base (5), a first frame body (1), a second frame body (2), a third frame body (3) and a fourth frame body (4);

the base (5) is arranged on the ground; the first frame body (1), the second frame body (2), the third frame body (3) and the fourth frame body (4) are sequentially arranged on the base (5) from top to bottom; the first frame body (1), the second frame body (2), the third frame body (3) and the fourth frame body (4) form a frame; the left side and the right side of the first frame body (1), the second frame body (2), the third frame body (3) and the fourth frame body (4) are provided with through grooves; the first frame body (1), the second frame body (2), the third frame body (3) and the fourth frame body (4) are respectively provided with a locking screw rod (6) and a rotating shaft (10); the rotating shaft (10) penetrates through the through groove, and the bottom of the rotating shaft (10) is fixedly arranged on the base (5); the first frame body (1), the second frame body (2), the third frame body (3) and the fourth frame body (4) rotate around the rotating shaft (10); a transverse plate is arranged at the top of the locking screw rod (6), the locking screw rod (6) penetrates through the through groove and is in threaded fit connection with the base (5), and the locking screw rod (6) is parallel to the rotating shaft (10);

a printing plate cylinder mounting groove (7) is preset on the first frame body (1) and the second frame body (2); rubber roller mounting grooves (8) are preset on the second frame body (2) and the third frame body (3); the third frame body (3) and the fourth frame body (4) are provided with impression cylinder mounting grooves (9) in advance; the printing plate cylinder mounting groove (7), the blanket cylinder mounting groove (8) and the impression cylinder mounting groove (9) have the same structure; a plate cylinder (16) is arranged on the frame; a connecting piece (17) is arranged on the plate cylinder (16), and a limiting plate (18) is sleeved on one side of the connecting piece (17) penetrating through the plate cylinder mounting groove (7); one side of the limiting plate (18) facing the rack is provided with a hemispherical roller (19); a sliding groove (20) is arranged on the frame, and the roller (19) is matched and slidably connected with the sliding groove (20); the other side of the limiting plate (18) is provided with a tooth groove (21), and the tooth groove (21) is in meshing transmission connection with the transmission assembly.

2. The printing machine frame positioning structure according to claim 1, wherein a support spring (22) is arranged at one side of the roller (19) embedded in the limiting plate (18); the support spring (22) is held in a compressed state.

3. The printing machine frame positioning structure according to claim 1, wherein positioning pins (12) are arranged at the bottoms of the first frame body (1), the second frame body (2) and the third frame body (3); the top of the second frame body (2), the third frame body (3) and the second frame body (2) are all provided with positioning grooves (13).

4. A printer frame positioning structure according to claim 3, characterized in that the positioning pin (12) is fittingly inserted into the positioning slot (13).

5. A printing press frame positioning structure according to claim 3, characterized in that an elastic member (15) is arranged in the positioning slot (13), and a pressure plate (14) is arranged on the top of the elastic member (15).

6. A printing press frame positioning structure according to claim 1, characterized in that the first frame body (1), the second frame body (2) and the third frame body (3) are provided with a limiting piece (11).

7. The printing machine frame positioning structure according to claim 6, wherein the limiting member (11) comprises a magnetic attraction plate (111), a first support plate (112), a second support plate (113) and a rotating member (114); the limiting piece (11) rotates 0-180 degrees around the rotating piece (114); the magnetic attraction plate (111) is magnetically attracted with the first frame body (1), the second frame body (2) and the third frame body (3); the first supporting plate (112) is provided with a bulge matched with the positioning groove (13), and the second supporting plate (113) is provided with a groove matched with the positioning pin (12).