CN217863235U

CN217863235U - Color register mechanism of flexographic printing machine

Info

Publication number: CN217863235U
Application number: CN202221767092.2U
Authority: CN
Inventors: 林侯鹏
Original assignee: Wenzhou Mingtai Printing And Packaging Machinery Co ltd
Current assignee: Wenzhou Mingtai Printing And Packaging Machinery Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-11-22
Anticipated expiration: 2032-07-08

Abstract

The utility model discloses a chromatography mechanism of a flexographic printing machine, which comprises a frame, a traction roller and a printing roller, wherein the two ends of the traction roller are respectively provided with a first left shaft head and a first right shaft head which are rotationally arranged on the frame, the two ends of the printing roller are respectively provided with a second left shaft head and a second right shaft head which are rotationally arranged on the frame, the first right shaft head is connected with a first gear in a linkage way, and the second right shaft head is connected with a second gear which is meshed with the first gear in a linkage way; the traction roller is characterized by further comprising a longitudinal fine adjustment assembly, a main transmission shaft, a first bevel gear and a second bevel gear, wherein the main transmission shaft is rotatably installed on one side of the rack, the first bevel gear is installed on the main transmission shaft in a linkage mode, the second bevel gear is installed on a first right shaft head and meshed with the first bevel gear, and the longitudinal fine adjustment assembly is installed on a first left shaft head and used for driving the traction roller to longitudinally slide. The utility model is not only simple in structure reliable, it has little and the high advantage of regulation precision of operating torque moreover.

Description

Color register mechanism of flexographic printing machine

Technical Field

The utility model relates to a printing machine technical field especially relates to a chromatography mechanism of flexographic printing machine.

Background

The flexographic printing machine has the advantages of simple machine structure, strong material adaptability, small imprinting force, low printing cost, high printing speed, good quality, environmental protection and the like. The gravure printing machine needs color register when printing, the longitudinal color register refers to the color register in the feeding direction, the longitudinal color register is mainly realized by the rotation of a printing roller relative to a printing stock through a color register mechanism, and the existing color register mechanism has the defects of complex structure, large operating torque and low adjusting precision.

Therefore, there is a need in the market for a color register mechanism with simple structure, small operation torque and high adjustment precision to solve the above problems

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chromatography mechanism of flexographic printing machine, the utility model is not only simple structure reliable, it has little and the high advantage of regulating accuracy of operating torque moreover.

In order to achieve the above object, the utility model provides a following technical scheme: a chromatography mechanism of a flexographic printing machine comprises a rack, a traction roller and a printing roller, wherein a first left shaft head and a first right shaft head which are rotatably arranged on the rack are respectively arranged at two ends of the traction roller; still include vertical fine setting subassembly, final drive shaft, first helical gear and second helical gear, the final drive shaft rotates and installs in frame one side, first helical gear linkage is installed on final drive shaft, the second helical gear is installed on first right spindle nose to the second helical gear meshes with first helical gear mutually, vertical fine setting subassembly is installed and is used for driving carry over pinch rolls longitudinal slippage on first left spindle nose.

By adopting the technical scheme, the longitudinal fine adjustment component acts on the first left shaft head to promote the traction roller to generate longitudinal displacement (axial displacement), and because the second helical gear on the first right shaft head is meshed with the first helical gear on the main transmission shaft, the second helical gear rotates and superposes under the meshing effect of the first helical gear, so that the traction roller generates micro-rotation, and the traction roller drives the printing roller to rotate when rotating. The mechanism has the advantages of simple and reliable structure, minimized transmission clearance, small operating torque and high adjusting precision.

The utility model discloses further set up to, vertical fine setting subassembly includes screw thread guide holder, screw thread adjusting collar and first bearing, the screw thread guide holder is installed at the frame lateral part and the screw thread guide holder is coaxial in the carry over pinch rolls, screw thread adjusting collar threaded connection is on the screw thread guide holder, first left spindle nose runs through the screw thread adjusting collar, first bearing interference sets up between first left spindle nose and the screw thread adjusting collar.

Through adopting above-mentioned technical scheme, rotate the screw thread adjusting collar, can impel the carry over pinch rolls to take place longitudinal displacement, it is very convenient to operate.

The utility model discloses further set up to, vertically finely tune the subassembly and still include worm wheel and worm, the worm wheel linkage sets up and sheathes in screw thread adjusting, the worm with the worm wheel cooperatees.

Through adopting above-mentioned technical scheme, rotate through worm gear transmission pair drive screw thread adjusting collar, not only the transmission is steady reliable, can reduce operating torque moreover, promotes the regulation precision.

The utility model discloses further set up to, worm wheel and screw thread adjusting collar formula structure as an organic whole.

Through adopting above-mentioned technical scheme, not only processing is convenient, and structural strength is high moreover, long service life.

The utility model discloses further set up to, press from both sides between screw thread guide holder and the first left spindle nose and be equipped with the second bearing, the axle sleeve that supplies first right spindle nose to pass is installed to one side that corresponds first right spindle nose in the frame, it is equipped with the third bearing to press from both sides between axle sleeve and the first right spindle nose.

Through adopting above-mentioned technical scheme, can realize support and the direction to the carry over pinch rolls to bearing wearability is good, makes equipment long-term stability chromatography precision that keeps, reduces the wearing and tearing that receive when the carry over pinch rolls rotates and slides.

The utility model discloses further set up to, two bearing frames are installed to the lateral part of frame, final drive shaft's both ends are rotated respectively and are set up in the bearing frame that corresponds.

Through adopting above-mentioned technical scheme, can realize main drive shaft's rotation installation to can show the friction that reduces main drive shaft and receive.

Drawings

Fig. 1 is a schematic view of the overall first viewing direction structure of the present invention;

fig. 2 is a schematic view of the overall second viewing direction structure of the present invention.

In the figure: 1. a frame; 2. a traction roller; 3. a printing roller; 4. a first left spindle nose; 5. a first right spindle nose; 6. a second left spindle nose; 7. a second right spindle nose; 8. a first gear; 9. a second gear; 10. a longitudinal fine adjustment assembly; 11. a main drive shaft; 12. a first helical gear; 13. a second helical gear; 14. a screw thread guide seat; 15. a thread adjusting sleeve; 16. a first bearing; 17. a worm gear; 18. a worm; 19. a second bearing; 20. a shaft sleeve; 21. a third bearing; 22. and a bearing seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts all belong to the protection scope of the present invention.

Example (b): the chromatography mechanism of the flexographic printing machine shown in fig. 1 and fig. 2 comprises a frame 1, a traction roller 2 and a printing roller 3, wherein a first left shaft head 4 and a first right shaft head 5 which are rotatably arranged on the frame 1 are respectively arranged at two ends of the traction roller 2, a second left shaft head 6 and a second right shaft head 7 which are rotatably arranged on the frame 1 are respectively arranged at two ends of the printing roller 3, a first gear 8 is connected to the first right shaft head 5 in a linkage manner, and a second gear 9 which is meshed with the first gear 8 is connected to the second right shaft head 7 in a linkage manner; this cover is established the mechanism and is still including vertical fine setting subassembly 10, final drive shaft 11, first helical gear 12 and second

helical gear

13, 11 rotations of final drive shaft are installed in 1 one side of frame, first helical gear 12 linkage installation (key-type connection) is on final drive shaft 11, second helical gear 13 installation (key-type connection) is on first right spindle nose 5 to second helical gear 13 meshes with first helical gear 12 mutually, vertical fine setting subassembly 10 is installed and is used for driving 2 longitudinal sliding of carry over pinch rolls on first left spindle nose 4. The longitudinal fine adjustment assembly 10 acts on the first left shaft head 4 to promote the longitudinal displacement (axial displacement) of the traction roller 2, and the second bevel gear 13 on the first right shaft head 5 is meshed with the first bevel gear 12 on the main transmission shaft 11, so that the second bevel gear 13 rotates and overlaps under the meshing effect of the first bevel gear 12, the traction roller 2 generates micro-rotation, and the traction roller 2 drives the printing roller 3 to rotate when rotating. The sleeving mechanism is simple and reliable in structure, transmission gaps are reduced to the maximum extent, and the sleeving mechanism has the advantages of small operating torque and high adjusting precision.

As shown in fig. 2, the longitudinal fine adjustment assembly 10 includes a thread guide seat 14, a thread adjusting sleeve 15 and a first bearing 16, the thread guide seat 14 is installed at a side portion of the frame 1 through a screw, the thread guide seat 14 is coaxial with the traction roller 2, the thread adjusting sleeve 15 is connected to the thread guide seat 14 in a threaded manner, that is, a threaded hole is formed in the middle of the thread guide seat 14, an external thread matched with the threaded hole is formed in the outer periphery of the thread adjusting sleeve 15, the first left spindle head 4 penetrates through the thread adjusting sleeve 15, the first bearing 16 is arranged between the first left spindle head 4 and the thread adjusting sleeve 15 in an interference manner, the outer ring of the first bearing 16 abuts against the inner periphery of the thread adjusting sleeve 15 and is fixed relative to the inner ring, the inner ring of the first bearing 16 abuts against the outer periphery of the first left spindle head 4 and is fixed relative to the outer ring, and a snap spring can be respectively arranged on the first left spindle head 4 and the thread adjusting sleeve 15 for abutting against two sides of the first bearing 16 to axially limit the first bearing 16, so as to improve the installation stability of the first bearing 16. The screw thread adjusting sleeve 15 is rotated, so that the traction roller 2 can be driven to longitudinally displace, and the operation is very convenient.

As shown in fig. 2, the longitudinal fine adjustment assembly 10 further includes a worm wheel 17 and a worm 18, the worm wheel 17 is disposed on the thread adjustment sleeve 15 in a linkage manner, the worm 18 is matched with the worm wheel 17, and the outer end of the worm 18 can be connected with a hand wheel in a linkage manner. The worm gear 17 and the worm 18 are used for driving the thread adjusting sleeve 15 to rotate, so that the transmission is stable and reliable, the operating torque can be reduced, and the adjusting precision is improved.

Wherein, the worm wheel 17 and the thread adjusting sleeve 15 are in an integrated structure. The design is convenient to process, and has high structural strength and long service life.

As shown in fig. 1, a second bearing 19 is interposed between the threaded guide seat 14 and the first left spindle nose 4, a shaft sleeve 20 for the first right spindle nose 5 to pass through is installed on one side of the frame 1 corresponding to the first right spindle nose 5, and a third bearing 21 is interposed between the shaft sleeve 20 and the first right spindle nose 5. This structure can realize support and direction to carry over pinch rolls 2 to bearing wearability is good, makes equipment remain stable chromatography precision for a long time, reduces the wearing and tearing that receive when carry over pinch rolls 2 rotate and slide, reduces the equipment energy consumption.

As shown in fig. 1, two bearing seats 22 are mounted on the side of the frame 1, and two ends of the main transmission shaft 11 are rotatably disposed in the corresponding bearing seats 22, respectively. This configuration enables the rotational mounting of the main drive shaft 11 and significantly reduces the friction experienced by the main drive shaft 11.

Claims

1. A color register mechanism of a flexographic printing machine comprises a rack (1), a traction roller (2) and a printing roller (3), wherein a first left shaft head (4) and a first right shaft head (5) which are rotatably arranged on the rack (1) are respectively arranged at two ends of the traction roller (2), a second left shaft head (6) and a second right shaft head (7) which are rotatably arranged on the rack (1) are respectively arranged at two ends of the printing roller (3), a first gear (8) is connected to the first right shaft head (5) in a linkage manner, and a second gear (9) which is meshed with the first gear (8) is connected to the second right shaft head (7) in a linkage manner; the method is characterized in that: still include vertical fine setting subassembly (10), final drive shaft (11), first helical gear (12) and second helical gear (13), final drive shaft (11) rotate and install in frame (1) one side, first helical gear (12) linkage is installed on final drive shaft (11), second helical gear (13) are installed on first right spindle nose (5) to second helical gear (13) and first helical gear (12) mesh mutually, vertical fine setting subassembly (10) are installed and are used for driving carry over pinch rolls (2) longitudinal slippage on first left spindle nose (4).

2. The register mechanism of a flexographic printing machine according to claim 1, characterized in that: vertical fine setting subassembly (10) is including screw thread guide holder (14), screw thread adjusting collar (15) and first bearing (16), screw thread guide holder (14) are installed in frame (1) lateral part and screw thread guide holder (14) are coaxial in carry over pinch rolls (2), screw thread adjusting collar (15) threaded connection is on screw thread guide holder (14), first left spindle nose (4) run through screw thread adjusting collar (15), first bearing (16) interference sets up between first left spindle nose (4) and screw thread adjusting collar (15).

3. The registering mechanism of a flexographic printing machine according to claim 2, characterized in that: the longitudinal fine adjustment assembly (10) further comprises a worm wheel (17) and a worm (18), the worm wheel (17) is arranged on the thread adjusting sleeve (15) in a linkage mode, and the worm (18) is matched with the worm wheel (17).

4. The register mechanism of a flexographic printing machine according to claim 3, characterized in that: the worm wheel (17) and the thread adjusting sleeve (15) are of an integrated structure.

5. The register mechanism of a flexographic printing machine according to claim 2, characterized in that: a second bearing (19) is clamped between the threaded guide seat (14) and the first left shaft head (4), a shaft sleeve (20) for the first right shaft head (5) to penetrate through is installed on one side, corresponding to the first right shaft head (5), of the rack (1), and a third bearing (21) is clamped between the shaft sleeve (20) and the first right shaft head (5).

6. The register mechanism of a flexographic printing machine according to claim 1, characterized in that: two bearing blocks (22) are installed on the lateral portion of the rack (1), and two ends of the main transmission shaft (11) are rotatably arranged on the corresponding bearing blocks (22) respectively.