CN209738515U - Cooling roller of printing machine - Google Patents

Abstract

The utility model discloses a printing machine chill roll, including roller main part and the joint of setting at roller main part both ends, the inside cooling water course that is provided with two joints of intercommunication of roller main part, connect including fixed pipe and rotating tube, the head end and the roller main part fixed connection of rotating tube, the end of rotating tube is provided with pin joint portion, pin joint portion inserts and establishes the one end of fixed pipe, be provided with bearing assembly and slewing seal circle so that fixed pipe and rotating tube pin joint between fixed pipe and the pin joint portion. Compare with current printing machine chill roll for printing, the utility model discloses it is lighter and quicker, the resistance is little during the rotation, can improve chromatography and product percent of pass.

Description

Cooling roller of printing machine

Technical Field

The utility model relates to the field of printing technology, especially a printing machine chill roll.

Background

The cooling roller of the printing machine is used for cooling printed matters such as films, paper and the like. The cooling roller of the printing machine rotates around the axis in the working process, and the tap water pipe connected with the cooling roller of the printing machine is fixed, so that the existing cooling roller of the printing machine is generally connected with the tap water pipe by adopting flange-type rotating joints at two ends of the cooling roller of the printing machine, the flange-type rotating joints are heavy and have large resistance, the stretching influence on a film is large, and the overprinting and the product yield are reduced.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a printing machine cooling roller with light rotation and small rotation resistance.

The utility model discloses a solve its technical problem and the technical scheme who adopts is:

The utility model provides a printing machine chill roll, includes roller main part and sets up the joint at roller main part both ends, the inside cooling water course that is provided with two joints of intercommunication of roller main part, connect including fixed pipe and rotating tube, the head end and the roller main part fixed connection of rotating tube, the end of rotating tube is provided with pin joint portion, pin joint portion inserts and establishes the one end of fixed pipe, be provided with bearing assembly and slewing seal circle so that fixed pipe and rotating tube pin joint between fixed pipe and the pin joint portion.

Preferably, the bearing assembly comprises a bearing seat arranged inside the fixed pipe, the bearing seat is tubular and is in interference fit with the fixed pipe, the pivot part is inserted in an inner hole of the bearing seat, the bearing assembly further comprises a sliding bearing and a ball bearing which are arranged between the rotating pipe and the bearing seat, and the rotary sealing ring is a sealing ring special for the sliding bearing and matched with the sliding bearing.

Preferably, the roller main body comprises a cylinder, an operation side shaft head inserted into one end of the cylinder and a transmission side shaft head inserted into the other end of the cylinder, the cooling water channel comprises a water inlet channel arranged inside the operation side shaft head, a water outlet channel arranged inside the transmission side shaft head and a heat exchange water channel arranged inside the cylinder, and two ends of the heat exchange water channel are respectively communicated with the water inlet channel and the water outlet channel.

Preferably, the number of the heat exchange water channels is more than two, the heat exchange water channels are parallel to each other and independent from each other, the water inlet channel comprises a water inlet main channel and a plurality of water inlet branch channels, the water inlet branch channels are arranged in the axial direction and are in one-to-one correspondence with the heat exchange water channels, each water inlet branch channel communicates one water inlet branch channel with the water inlet main channel, the water outlet channel comprises a water outlet main channel and a plurality of water outlet branch channels, the water outlet branch channels are arranged in the axial direction and are in one-to-one correspondence with the heat exchange water channels, and each water outlet branch channel communicates one water outlet branch channel with the water outlet main channel.

preferably, the heat exchange water channel is formed in a spiral shape.

Preferably, the cylinder comprises an inner cylinder and an outer cylinder sleeved outside the inner cylinder, a groove is formed in the outer side wall of the inner cylinder, and the groove forms the heat exchange water channel.

the utility model has the advantages that: the bearing assembly can greatly reduce the friction force between the fixed pipe and the rotating pipe, the rotary sealing ring can seal the joint of the fixed pipe and the rotating pipe, and meanwhile, the resistance is extremely low. Compare with current printing machine chill roll for printing, the utility model discloses it is lighter and quicker, the resistance is little during the rotation, can improve chromatography and product percent of pass.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

FIG. 2 is an enlarged partial schematic view of section C of FIG. 1;

FIG. 3 is a cross-sectional view of the fitting;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1;

Fig. 5 is a sectional view taken along line B-B of fig. 1.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1 to 5, the embodiment of the utility model provides a printing machine chill roll, including roller main part 1 and the joint 2 of setting at roller main part 1 both ends, roller main part 1 is inside to be provided with two cooling water courses that connect 2 of intercommunication, a serial communication port, connect 2 including fixed pipe 21 and rotating tube 22, the head end and the roller main part 1 fixed connection of rotating tube 22, the end of rotating tube 22 is provided with the pin joint portion, the pin joint portion is inserted and is established the one end of fixed pipe 21, be provided with bearing assembly and rotary seal 23 between fixed pipe 21 and the pin joint portion so that fixed pipe 21 and rotating tube 22 pin joint.

The utility model discloses when being in operating condition, roller main part 1 is rotated by outside drive arrangement drive, and rotating tube 22 rotates along with roller main part 1, and the other end and the water piping connection of fixed pipe 21 are in quiescent condition always. The bearing assembly can greatly reduce the friction between the fixed pipe 21 and the rotating pipe 22, and the rotary seal ring 23 can seal the joint of the fixed pipe 21 and the rotating pipe 22 with extremely low resistance. Compare with current printing machine chill roll for printing, the utility model discloses light and fast more during the rotation, the resistance is little, can not cause tensile condition to appear to the film because of the resistance that connects 2 productions, can improve overprint and product percent of pass.

Referring to fig. 3, in this embodiment, the bearing assembly includes a bearing seat 24 disposed inside the fixed tube 21, the bearing seat 24 is tubular and is in interference fit with the fixed tube 21, the pivot portion is inserted into an inner hole of the bearing seat 24, the bearing assembly further includes a sliding bearing 25 and a ball bearing 26 disposed between the rotating tube 22 and the bearing seat 24, the revolving seal ring 23 is a seal ring dedicated to the sliding bearing used in cooperation with the sliding bearing 25, and two bearings are adopted, so that the rotating stability of the rotating tube 22 can be improved, and the eccentricity can be reduced. Of course, the sliding bearing 25 can be replaced by other bearings, such as other ball bearings, and the rotary seal ring 23 is a rotary seal ring 23 with an X-shaped cross section and is arranged between the two bearings.

Referring to fig. 1, the roller body 1 includes a cylinder 4, an operation side shaft head 5 inserted into one end of the cylinder 4, and a transmission side shaft head 6 inserted into the other end of the cylinder 4, the cooling water channel includes a water inlet channel 51 provided inside the operation side shaft head 5, a water outlet channel 61 provided inside the transmission side shaft head 6, and a heat exchange water channel 401 provided inside the cylinder 4, and both ends of the heat exchange water channel 401 are respectively communicated with the water inlet channel 51 and the water outlet channel 61.

referring to fig. 4 and 5, the number of the heat exchange water channels 401 is two or more, the heat exchange water channels 401 are parallel to each other and are independent of each other, the water inlet channel 51 includes a water inlet main channel 511 and a plurality of water inlet branch channels 512 arranged in a radial direction, the water inlet branch channels 512 correspond to the heat exchange water channels 401 one by one, each water inlet branch channel 512 communicates one water inlet branch channel 512 with the water inlet main channel 511, the water outlet channel 61 includes a water outlet main channel 611 arranged in the axial direction and a plurality of water outlet branch channels 612 arranged in the radial direction, the water outlet branch channels 612 correspond to the heat exchange water channels 401 one by one, and each water outlet branch channel 612 communicates one water outlet branch channel 612 with the water outlet main channel 611. The heat exchange channels 401 may be arranged as straight channels, serpentine channels, or helical channels. Preferably, the heat-exchanging water channel 401 is spiral, the inlet branch channels 512 are radially arranged with the inlet main channel 511 as the center, and the outlet branch channels 612 are radially arranged with the outlet main channel 611 as the center. The cooling water passage is designed to have the above-described structure, and the circulation of the cooling water therein is excellent, and the cooling water in the heat exchange water passages 401 does not interfere with each other, thereby improving the cooling efficiency.

Referring to fig. 2, the cylinder 4 includes an inner cylinder 41 and an outer cylinder 42 sleeved outside the inner cylinder 41, and a groove is formed on an outer side wall of the inner cylinder 41, and the groove forms the heat exchange water channel 401. In the existing printing press cooling roller, the mode of making the heat exchange water channel 401 is that the guide plates are welded on the outer side wall of the inner cylinder 41 body 4, the space between the guide plates forms the heat exchange water channel 401, the welding time is long, the efficiency is low, the welding part is fragile, and the service life is short. The utility model discloses a set up the recess on the lateral wall of inner tube 41 and form heat exchange water course 401, solution above-mentioned problem that can be fine.

The above is only the preferred embodiment of the present invention, as long as the technical solution of the purpose of the present invention is realized by the substantially same means, all belong to the protection scope of the present invention.

Claims (6)

1. The utility model provides a printing machine chill roll, includes roller main part (1) and sets up joint (2) at roller main part (1) both ends, roller main part (1) inside is provided with the cooling water course that communicates two joints (2), a serial communication port, connect (2) including fixed pipe (21) and rotating tube (22), the head end and roller main part (1) fixed connection of rotating tube (22), the end of rotating tube (22) is provided with pin joint portion, pin joint portion inserts and establishes the one end of fixed pipe (21), be provided with bearing assembly and gyration sealing washer (23) between fixed pipe (21) and the pin joint portion so that fixed pipe (21) and rotating tube (22) pin joint.

2. A printing press chill roll according to claim 1, characterized in that the bearing assembly comprises a bearing seat (24) arranged inside the stationary tube (21), the bearing seat (24) is tubular and is in interference fit with the stationary tube (21), the pivot joint is inserted in the inner bore of the bearing seat (24), the bearing assembly further comprises a sliding bearing (25) and a ball bearing (26) arranged between the rotating tube (22) and the bearing seat (24), and the slewing seal ring (23) is a seal ring dedicated to the sliding bearing used in cooperation with the sliding bearing (25).

3. The printing press chill roll according to claim 1, wherein the roll body (1) comprises a cylinder (4), an operation side spindle nose (5) inserted at one end of the cylinder (4), and a transmission side spindle nose (6) inserted at the other end of the cylinder (4), the cooling water channel comprises a water inlet channel (51) provided inside the operation side spindle nose (5), a water outlet channel (61) provided inside the transmission side spindle nose (6), and a heat exchange water channel (401) provided inside the cylinder (4), and both ends of the heat exchange water channel (401) are respectively communicated with the water inlet channel (51) and the water outlet channel (61).

4. the printing press chill roll according to claim 3, wherein the number of the heat exchange water channels (401) is two or more, each heat exchange water channel (401) is parallel to and independent of each other, the water inlet channel (51) comprises an axially arranged water inlet main channel (511) and a plurality of radially arranged water inlet branch channels (512), the water inlet branch channels (512) correspond to the heat exchange water channels (401) one by one, each water inlet branch channel (512) communicates one water inlet branch channel (512) with the water inlet main channel (511), the water outlet channel (61) comprises an axially arranged water outlet main channel (611) and a plurality of radially arranged water outlet branch channels (612), the water outlet branch channels (612) correspond to the heat exchange water channels (401) one by one, and each water outlet branch channel (612) communicates one water outlet branch channel (612) with the water outlet main channel (611).

5. a printing press chill roll according to claim 4, characterized in that the heat exchange channels (401) are helical.

6. The printing press chill roll according to claim 3, wherein the cylinder (4) comprises an inner cylinder (41) and an outer cylinder (42) sleeved outside the inner cylinder (41), and the outer side wall of the inner cylinder (41) is provided with a groove which forms the heat exchange water channel (401).