CN211542853U

CN211542853U - Preheating device of digital printing machine

Info

Publication number: CN211542853U
Application number: CN201922153412.XU
Authority: CN
Inventors: 刘汉楚
Original assignee: Shaodong Xiangtai Color Printing And Packaging Co ltd
Current assignee: Shaodong Xiangtai Color Printing And Packaging Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-09-22
Anticipated expiration: 2029-12-05

Abstract

The utility model provides a preheating device of a digital printing machine, which comprises a preheating box and a plurality of rotating shafts; heating device set up in on the preheating cabinet, heating device includes the air heater, the left side of air heater is provided with the connecting pipe, the fixed pipe of one end fixedly connected with of connecting pipe, a plurality of conveyer pipes of fixedly connected with on the fixed pipe, it is a plurality of the one end fixedly connected with of conveyer pipe connects the shell, a plurality of hot-blast main of bottom fixedly connected with of connection shell, the utility model provides a preheating device of digital printing machine has if the temperature is low, can the reverse regulation, makes the distance of hot-blast main and printing material reduce to guarantee to the better preheating of printing material, this device simple structure can evenly preheat the printing material to can adjust the distance between hot-blast main and the printing material, thereby avoid the hot-blast overheated damage that causes the printing material of hot-blast that hot-blast main 36 got rid of.

Description

Preheating device of digital printing machine

Technical Field

The utility model relates to a heating field of printing material especially relates to a preheating device of digital printing machine.

Background

The digital printing machine breaks through the technical bottleneck of digital printing, realizes one-time printing without plate making and full-color image in the true sense, has extremely low printing cost and high-quality printing effect, is more economical and convenient than the traditional printing system, has extremely less system investment, digital operation mode and limited space occupation, has larger market prospect, is the best supplement to the traditional printing and is a replacement product of the traditional printing machine.

Before a printing machine finishes printing on a printing substrate, the substrate needs to be preheated, so that no moisture is left on the printing material, however, the existing preheating devices preheat the printing substrate in a single hot air blowing mode, so that only a single surface of the printing substrate can be preheated, and the distance between a hot air pipe and the printing material cannot be changed, so that the printing materials with different humidity degrees cannot obtain different wind power and temperature, the existing hot air after being preheated is discharged into the atmosphere, the hot air can be utilized only once, and the waste of heat energy is caused.

Therefore, it is necessary to provide a preheating device of a digital printer to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a preheating device of digital printing machine has solved the problem that the printing material single face is heated.

In order to solve the technical problem, the utility model provides a preheating device of digital printing machine, include: a preheating chamber and a plurality of rotating shafts; the heating device is arranged on the preheating box and comprises an air heater, a connecting pipe is arranged on the left side of the air heater, one end of the connecting pipe is fixedly connected with a fixed pipe, a plurality of conveying pipes are fixedly connected onto the fixed pipe, one end of each conveying pipe is fixedly connected with a connecting shell, the bottom of each connecting shell is fixedly connected with a plurality of hot air pipes, an air outlet is formed in the top of the preheating box, and a return pipe is arranged on the air outlet; the lifting device is arranged on the preheating box and comprises a fixed plate, the top of the fixed plate is rotatably connected with a first sliding rod, a sliding groove is formed in the inner side of the preheating box, the bottom of the fixed plate is fixedly connected with a threaded rod, the top end of the threaded rod is fixedly connected with a disc, and the top of the preheating box is fixedly connected with a threaded block; the limiting device is arranged at the top of the lifting device and comprises a fixed block, two second sliding rods are fixedly connected to the fixed block, springs are sleeved on the surfaces of the sliding rods, limiting discs are fixedly connected to the sliding rods, and limiting grooves are formed in the thread blocks.

Preferably, a feed inlet is formed in the left side of the preheating box, and the spring is located between the disc and the limiting disc.

Preferably, a plurality of rotating shafts are arranged in the preheating box, ten rotating shafts are arranged in total, and the ten rotating shafts are uniformly distributed in the preheating box.

Preferably, the hot air pipes are uniformly distributed on the connecting shell, and the corresponding angles of the hot air pipes are different.

Preferably, the fixing tube is fixed at the bottom of the fixing plate, and the conveying tube is located between the two rotating shafts.

Preferably, one end of the first sliding rod is arranged inside the sliding groove, and one end of the first sliding rod is matched with the sliding groove.

Preferably, one end of the second sliding rod penetrates through the disk and extends to the bottom of the disk, and one end of the second sliding rod, which extends to the bottom of the disk, is matched with the limiting groove.

Compared with the prior art, the utility model provides a preheating device of digital printing machine has following beneficial effect:

the utility model provides a preheating device of a digital printing machine, the air heater is opened by a control switch, hot air generated by the air heater is conveyed to a fixed pipe by a connecting pipe, then the hot air is respectively conveyed to the inside of each conveying pipe by the fixed pipe, then the hot air is conveyed to the inside of a connecting shell by the conveying pipe, then the material to be printed is preheated by the hot air pipe, hot air discharged by the hot air pipe is discharged from an air outlet to the inside of a preheating box, and then the hot air is re-heated by a return pipe, thereby reducing the waste of heat energy, when the temperature of the hot air discharged by the hot air pipe is too high or too low, when the temperature is too high, the fixed block is upwards pulled, the fixed block upwards moves to drive a second sliding rod to upwards move, the second sliding rod upwards moves to make one end of the second sliding rod break away from the fixation of a limiting groove, thereby the disc threaded rod can, the threaded rod is rotatory can make the threaded rod upwards remove, can drive the fixed plate rebound, fixed plate rebound can drive fixed pipe rebound, fixed pipe rebound can drive a plurality of conveyer pipes rebound, conveyer pipe rebound can drive the connection shell rebound, the connection shell rebound can drive the hot-blast main rebound, thereby make the distance of hot-blast main and printing material increase, thereby guarantee that the high temperature causes the harm to the printing material, the same reason, if the temperature is low, can reverse regulation, make the distance of hot-blast main and printing material reduce, thereby guarantee to the better preheating of printing material, this device simple structure, can evenly preheat the printing material, and can adjust the distance between hot-blast main and the printing material, thereby avoid the hot-blast overheated damage that causes the printing material of hot-blast main getting rid of.

Drawings

Fig. 1 is a schematic structural diagram of a preheating device of a digital printing machine according to a preferred embodiment of the present invention;

FIG. 2 is a top view of the thread block of FIG. 1;

fig. 3 is an enlarged schematic view of a portion a shown in fig. 1.

Reference numbers in the figures: 1. preheating cabinet, 2, axis of rotation, 3, heating device, 31, air heater, 32, connecting pipe, 33, fixed pipe, 34, conveyer pipe, 35, connecting shell, 36, hot-blast main, 37, air outlet, 38, back flow tube, 4, elevating gear, 41, fixed plate, 42, first slide bar, 43, sliding tray, 44, threaded rod, 45, disc, 46, screw block, 5, stop device, 51, fixed block, 52, second slide bar, 53, spring, 54, spacing dish, 55, spacing groove, 6, feed inlet.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic structural diagram of a preheating device of a digital printing machine according to a preferred embodiment of the present invention; FIG. 2 is a top view of the thread block of FIG. 1; fig. 3 is an enlarged schematic view of a portion a shown in fig. 1. The preheating device of the digital printing machine comprises: a preheating chamber 1 and a plurality of rotating shafts 2; the heating device 3 is arranged on the preheating box 1, the heating device 3 comprises an air heater 31, a connecting pipe 32 is arranged on the left side of the air heater 31, one end of the connecting pipe 32 is fixedly connected with a fixed pipe 33, a plurality of conveying pipes 34 are fixedly connected to the fixed pipe 33, one ends of the plurality of conveying pipes 34 are fixedly connected with a connecting shell 35, a plurality of hot air pipes 36 are fixedly connected to the bottom of the connecting shell 35, an air outlet 37 is arranged at the top of the preheating box 1, and a return pipe 38 is arranged on the air outlet 37; the lifting device 4 is arranged on the preheating box 1, the lifting device 4 comprises a fixed plate 41, the top of the fixed plate 41 is rotatably connected with a first sliding rod 42, a sliding groove 43 is formed in the inner side of the preheating box 1, a threaded rod 44 is fixedly connected to the bottom of the fixed plate 41, a disc 45 is fixedly connected to the top end of the threaded rod 44, and a threaded block 46 is fixedly connected to the top of the preheating box 1; the limiting device 5 is arranged at the top of the lifting device 4, the limiting device 5 comprises a fixed block 51, two second sliding rods 52 are fixedly connected to the fixed block 51, springs 53 are sleeved on the surfaces of the sliding rods 52, a limiting disc 54 is fixedly connected to the sliding rods 52, a limiting groove 55 is formed in the thread block 46, when the printed materials need to be preheated, the motor drives the rotating shaft 2 to rotate, the printed materials needing to be preheated are placed into the feeding hole 6, the hot air blower 31 is turned on through a control switch, hot air generated by the hot air blower 31 is conveyed to the fixed pipes 33 through the connecting pipes 32, is conveyed to the inside of each conveying pipe 34 through the fixed pipes 33, is conveyed to the inside of the connecting shell 35 through the conveying pipes 34, then the materials needing to be printed are preheated through the hot air pipes 36, and hot air exhausted by the hot air pipes 36 is exhausted from the air outlet 37 to the inside of the preheating box 1, the hot air is heated again inside the air heater 31 by the return pipe 38, so as to reduce the waste of heat energy, and when the temperature of the hot air discharged from the hot air pipe 36 is too high or too low, when the temperature is too high, the fixing block 51 is pulled upwards, the fixing block 51 moves upwards to drive the second sliding rod 52 to move upwards, the second sliding rod 52 moves upwards to make one end of the second sliding rod 52 break away from the fixing of the limiting groove 55, so that the disc 45 can rotate, the disc 45 rotates to drive the threaded rod 44 to rotate, the threaded rod 44 rotates to move upwards to drive the fixing plate 41 to move upwards, the fixing plate 41 moves upwards to drive the fixing pipe 33 to move upwards, the fixing pipe 33 moves upwards to drive the plurality of conveying pipes 34 to move upwards, the conveying pipes 34 move upwards to drive the connecting shell 35 to move upwards, the connecting shell 35 moves upwards to drive the hot air pipe 36 to move upwards, so as to increase the distance between the hot air pipe 36 and the printing material, therefore, damage to the printing material due to overhigh temperature is guaranteed, and similarly, if the temperature is low, reverse adjustment can be performed, so that the distance between the hot air pipe 36 and the printing material is reduced, and better preheating of the printing material is guaranteed.

The feed inlet 6 is arranged at the left side of the preheating box 1, and the spring 53 is positioned between the disc 45 and the limiting disc 54.

The preheating box 1 is internally provided with a plurality of rotating shafts 2, the rotating shafts 2 have ten total, the ten rotating shafts 2 are uniformly distributed in the preheating box 1, and the plurality of rotating shafts 2 can convey printing materials.

The hot air pipes 36 are uniformly distributed on the connecting shell 35, and the angles corresponding to the hot air pipes 36 are different, and the angles of the hot air pipes 36 are different, so that the printing materials can be all preheated.

The fixing tube 33 is fixed to the bottom of the fixing plate 41, the feeding tube 34 is located between the two rotating shafts 2, and a plurality of feeding tubes 34 can preheat the printing material a plurality of times.

One end of the first sliding rod 42 is arranged inside the sliding groove 43, and one end of the first sliding rod 42 is matched with the sliding groove 43, so that the first sliding rod 42 slides inside the sliding groove 43, and the fixed plate 41 can stably move when moving up and down.

One end of the second sliding rod 52 penetrates through the circular disc 45 and extends to the bottom of the circular disc 45, and one end of the second sliding rod 52 extending to the bottom of the circular disc 45 is matched with the limiting groove 55

The utility model provides a preheating device of digital printing machine's theory of operation as follows:

s1 when the printed material needs to be preheated, the motor drives the rotating shaft 2 to rotate, the printed material to be preheated is put into the feed inlet 6, the hot air blower 31 is opened by the control switch, the hot air generated by the hot air blower 31 is conveyed to the fixed pipe 33 by the connecting pipe 32, then is conveyed to the inside of each conveying pipe 34 by the fixed pipe 33, then is conveyed to the inside of the connecting shell 35 by the conveying pipe 34, then the material to be printed is preheated by the hot air pipe 36, the hot air exhausted by the hot air pipe 36 is exhausted from the inside of the preheating box 1 by the air outlet 37, and the hot air is enabled to be re-heated in the inside of the hot air blower 31 by the return pipe 38, so that the waste of heat energy is reduced.

S2, when the temperature of the hot air discharged from the hot air duct 36 is too high or too low, when the temperature is too high, the fixing block 51 is pulled upwards, the fixing block 51 moves upwards to drive the second sliding rod 52 to move upwards, the second sliding rod 52 moves upwards to separate one end of the second sliding rod 52 from the fixing of the limiting groove 55, so that the disc 45 can rotate, the disc 45 rotates to drive the threaded rod 44 to rotate, the threaded rod 44 rotates to drive the threaded rod 44 to move upwards to drive the fixing plate 41 to move upwards, the fixing plate 41 moves upwards to drive the fixing tube 33 to move upwards, the fixing tube 33 moves upwards to drive the plurality of conveying tubes 34 to move upwards, the conveying tube 34 moves upwards to drive the connecting shell 35 to move upwards, the connecting shell 35 moves upwards to drive the hot air duct 36 to move upwards, so that the distance between the hot air duct 36 and the printing material is increased, thereby ensuring that the printing material is damaged by too high temperature, similarly, if the temperature is low, can the reverse regulation, make the distance reduction of hot-blast main 36 and printing material to guarantee to the better preheating of printing material, this device simple structure can carry out evenly preheating by many printing material, thereby guarantees the drying of printing material.

the hot air blower 31 is turned on by the control switch, the hot air generated by the hot air blower 31 is transmitted to the fixed pipe 33 by the connecting pipe 32, then is respectively transmitted to the inside of each conveying pipe 34 by the fixed pipe 33, then is transmitted to the inside of the connecting shell 35 by the conveying pipe 34, then the material to be printed is preheated by the hot air pipe 36, the hot air exhausted by the hot air pipe 36 is exhausted from the inside of the preheating box 1 by the air outlet 37, and is re-heated in the hot air blower 31 by the return pipe 38, thereby reducing the waste of heat energy, and when the temperature of the hot air exhausted by the hot air pipe 36 is too high or too low, when the temperature is too high, the fixed block 51 is pulled upwards, the fixed block 51 moves upwards to drive the second sliding rod 52 to move upwards, the second sliding rod 52 moves upwards to make one end of the second sliding rod 52 break away from the fixing of the limiting groove 55, so that the disc 45 can rotate, the disc, the rotation of the threaded rod 44 will make the threaded rod 44 move upward and drive the fixing plate 41 to move upward, the upward movement of the fixing plate 41 will drive the fixing tube 33 to move upward, the upward movement of the fixing tube 33 will drive the plurality of conveying tubes 34 to move upward, the upward movement of the conveying tubes 34 will drive the connecting shell 35 to move upward, the upward movement of the connecting shell 35 will drive the hot air pipe 36 to move upward, so that the distance between the hot air duct 36 and the printing material is increased, thereby ensuring the damage of the printing material caused by overhigh temperature, and similarly, if the temperature is low, the reverse adjustment can be carried out, so that the distance between the hot air duct 36 and the printing material is reduced, thereby ensuring better preheating of the printing material, the device has simple structure, can uniformly preheat the printing material, and the distance between the hot air duct 36 and the printing material can be adjusted, thereby preventing the hot air exhausted from the hot air duct 36 from being overheated to damage the printing material.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A preheating device for a digital printing press, comprising:

a preheating chamber and a plurality of rotating shafts;

the heating device is arranged on the preheating box and comprises an air heater, a connecting pipe is arranged on the left side of the air heater, one end of the connecting pipe is fixedly connected with a fixed pipe, a plurality of conveying pipes are fixedly connected onto the fixed pipe, one end of each conveying pipe is fixedly connected with a connecting shell, the bottom of each connecting shell is fixedly connected with a plurality of hot air pipes, an air outlet is formed in the top of the preheating box, and a return pipe is arranged on the air outlet;

the lifting device is arranged on the preheating box and comprises a fixed plate, the top of the fixed plate is rotatably connected with a first sliding rod, a sliding groove is formed in the inner side of the preheating box, the bottom of the fixed plate is fixedly connected with a threaded rod, the top end of the threaded rod is fixedly connected with a disc, and the top of the preheating box is fixedly connected with a threaded block;

the limiting device is arranged at the top of the lifting device and comprises a fixed block, two second sliding rods are fixedly connected to the fixed block, springs are sleeved on the surfaces of the sliding rods, limiting discs are fixedly connected to the sliding rods, and limiting grooves are formed in the thread blocks.

2. The preheating apparatus of a digital printer according to claim 1, wherein a feed opening is provided at a left side of the preheating chamber, and the spring is located between the circular plate and the limiting plate.

3. The preheating apparatus of a digital printing machine according to claim 1, wherein a plurality of rotating shafts are provided inside the preheating cabinet, ten rotating shafts in total being uniformly distributed inside the preheating cabinet.

4. The preheating device of the digital printer as claimed in claim 1, wherein the hot air pipes are uniformly distributed on the connecting shell, and the angles of the hot air pipes are different.

5. The preheating apparatus of a digital printer according to claim 1, wherein the fixing tube is fixed to a bottom of the fixing plate, and the feeding tube is positioned between the two rotating shafts.

6. The preheating device of a digital printer according to claim 1, wherein one end of the first sliding bar is inside the sliding groove, and one end of the first sliding bar is fitted to the sliding groove.

7. The pre-heating device of digital printer as claimed in claim 1, wherein one end of the second sliding rod penetrates the disk and extends to the bottom of the disk, and the end of the second sliding rod extending to the bottom of the disk is fitted with the limiting groove.