Degumming device for guide belt of digital printing machine

Abstract

The present application discloses a degumming device for a guide belt of a digital printing machine, comprising a bracket and a plurality of round rollers, wherein the round rollers are rotatably mounted on the bracket, the round rollers are in a parallel and non-contacting state, the round rollers are matched together through transmission members, a motion motor is arranged on the bracket, the motion motor is matched together with the round rollers, and further comprises a suspension rod, a collecting bin and a cutting knife, the suspension rod is arranged on one side of the bracket, the collecting bin is arranged on the suspension rod, the cutting knife is fixedly arranged at the bin opening of the collecting bin, the collecting bin is connected to a vacuum pump, and the vacuum pump is used to evacuate the collecting bin.

Description

Technical Field

[0001] The invention relates to the field of digital printing machine equipment, in particular to a degumming device for a guide belt of a digital printing machine. Background Art

[0002] The guide belt (PU material) is a very important component of the current digital printing machine. During digital printing, the fabric to be printed is bonded to the guide belt by resin glue, so the resin glue on the guide belt needs to be cleaned every once in a while. In order to clean the glue on the guide belt, the patent announcement document CN216757322U discloses a device that can remove the resin glue on the guide belt. This device uses a PU scraper to scrape off the resin glue on the guide belt. In order to successfully scrape off the resin glue, this device must be used in conjunction with a degumming agent (actually rosin water), which is toxic to the human body, so this device will cause certain harm to the human body when degumming. Summary of the invention

[0003] In view of the above problems, the present invention provides a degumming device for a guide belt of a digital printing machine.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A degumming device for a guide belt of a digital printing machine comprises a bracket and a plurality of round rollers, wherein the round rollers are rotatably mounted on the bracket, the round rollers are in a parallel and non-contacting state, and the round rollers are matched together through transmission parts, and a motion motor is arranged on the bracket, and the motion motor is matched with the round rollers. The device also comprises a suspension rod, a collecting bin and a cutting knife, wherein the suspension rod is arranged on one side of the bracket, the collecting bin is arranged on the suspension rod, and the cutting knife is fixedly arranged at the bin opening of the collecting bin, and the collecting bin is connected to a vacuum pump, and the vacuum pump is used to evacuate the collecting bin.

[0006] First of all, since the current guide tapes are all made of PU material, and the resin glue layer is bonded on top after the resin glue solidifies, the two are layers of different materials. The resin glue layer can be scraped off the guide tape with the help of a metal cutting knife.

[0007] In this degumming device, the round roller is used to support the guide belt, and the cutting guide is used to scrape the resin glue on the guide belt from the guide belt. Since the cutting knife is arranged at the bin mouth of the collecting silo, the resin glue layer scraped off the guide belt by the cutting knife will enter the collecting silo. At the same time, since the air suction interface of the collecting silo is connected to a vacuum pump, the vacuum pump performs a negative pressure operation on the collecting silo. Under negative pressure, the resin glue layer entering the collecting silo tends to be further pulled into the collecting silo (that is, the collecting silo in a negative pressure state itself has a tendency to pull the resin glue layer into the collecting silo). In this way, the guide belt and the resin glue layer are separated by the cutting separation of the cutting knife and the negative pressure suction and pulling action of the collecting silo, and the resin glue layer can be scraped off the guide belt without using rosin water.

[0008] Optionally, a nozzle is further included, wherein the nozzle is arranged on the collecting bin or the bracket and faces the cutting blade.

[0009] The specific nozzle sprays liquid in a direction opposite to the direction in which the guide belt travels. The nozzle sprays a liquid with a lubricating effect (which can be a low-concentration sodium carbonate solution). These liquids are sprayed onto the cutting blade. On the one hand, they can play a lubricating role. On the other hand, the liquid impacts the gap between the resin glue layer and the guide belt, which will form a force that tears the guide belt and the resin glue layer, making it easier for the cutting blade to scrape the resin glue layer off the guide belt.

[0010] Optionally, it also includes a plurality of flat square rods, which are arranged on a bracket and located between two parallel round rollers. The flat square rods do not contact the round rollers, and there are at least two flat square rods. The flat square rods are arranged on both sides of the cutting knife.

[0011] The function of the flat support square rod is to support the guide belt. Specifically, all the round rollers are in one plane, and the two flat support square rods are in a flush state.

[0012] Optionally, it also includes an exhaust pipe, which is arranged on the bracket, and a plurality of air holes are arranged on the pipe wall of the exhaust pipe. There are at least two exhaust pipes, and exhaust pipes are arranged on both sides of the cutting blade.

[0013] The purpose of setting the vacuum pipe is to apply negative pressure to the guide belt. Specifically, when in use, the collecting bin and the cutting knife are located above the guide belt, and the flat square rod and the vacuum pipe are located below the guide belt. Specifically, the vacuum pipe is also connected to a vacuum pump, and the openings of the air holes on the vacuum pipe face the guide belt. When the vacuum pipe is evacuated, it has a tendency to suck the guide belt tightly, and the guide belt will not be sucked into the vacuum pipe due to the supporting effect of the flat square rod. Therefore, when the device is used, it has a tendency to cut the resin glue layer and the guide belt from the middle when cutting, and the vacuum pipe has a tendency to pull the guide belt downward, and the collecting bin in a negative pressure state has a tendency to absorb the resin glue layer at the top.

[0014] Optionally, it also includes a screw mechanism, which has two sets of screw mechanisms, both of which are arranged on the bracket, each set of screw mechanisms is provided with a sliding block, and both ends of the suspension rod are respectively fixed on the sliding blocks of the two sets of screw mechanisms.

[0015] The use of a screw mechanism to mount the suspension rod is to be able to adjust the distance between the suspension rod and the round roller, so that the distance between the collecting bin (together with the cutting blade and the nozzle) and the guide belt can be adjusted.

[0016] Optionally, the cutting tool includes a first contact surface, a second contact surface and an arc guide surface, the arc guide surface is connected to the second contact surface, and an angle formed by the first contact surface and the second contact surface is an acute angle.

[0017] Optionally, the first contact surface is used to be in close contact with the conductive tape, and the second contact surface is used to be in contact with the resin glue layer.

[0018] Optionally, some of the circular rollers are provided with spikes.

[0019] Because the guide belt is made of PU material and the round roller is a steel roller, there is a certain probability that the guide belt will slip during the rotation process. Therefore, in order to improve the stability of the guide belt during transportation, some round rollers are provided with some spikes to increase the friction between the round roller and the guide belt, so that the guide belt can be stably transported along the rotation direction of the round roller.

[0020] Optionally, the collecting silo is a trapezoidal collecting silo.

[0021] Optionally, the transmission member includes a chain and a sprocket, the round roller is mounted with a sprocket, and the chain and the sprocket cooperate together.

[0022] The beneficial effects of the present invention are as follows: the guide belt and the resin glue layer are separated by the cutting separation of the cutting blade and the negative pressure suction and pulling action of the collecting bin, and the resin glue layer can be scraped off the guide belt without using rosin water. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of a degumming device for a guide belt of a digital printing machine;

[0024] Figure 2 It is a schematic diagram of the positional relationship between the suspension rod and the collecting silo;

[0025] Figure 3 This is a schematic diagram showing the working principle of the degumming device for the guide belt of a digital printing machine;

[0026] Figure 4 yes Figure 3 An enlarged schematic diagram of point A in the middle.

[0027] The reference numerals in the figure are: 1, screw mechanism; 101, handle; 2, suspension rod; 3, collection silo; 4, exhaust interface; 5, bracket; 6, motion motor; 7, round roller; 8, flat square rod; 9, cutting knife; 901, first contact surface; 902, second contact surface; 903, arc guide surface; 10, exhaust pipe; 1001, air hole; 11, nozzle; 12, guide belt; 13, resin glue layer. DETAILED DESCRIPTION

[0028] The present invention is described in detail below in conjunction with various embodiments.

[0029] Example 1

[0030] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, a degumming device for a guide belt 12 of a digital printing machine includes a bracket 5 and a plurality of round rollers 7. The round rollers 7 are rotatably mounted on the bracket 5. The round rollers 7 are in a parallel and non-contacting state. The round rollers 7 are matched together through transmission parts. A motion motor 6 is arranged on the bracket 5. The motion motor 6 is matched with the round rollers 7. The device also includes a suspension rod 2, a collecting bin 3 and a cutting knife 9. The suspension rod 2 is arranged on one side of the bracket 5. The collecting bin 3 is arranged on the suspension rod 2. The cutting knife 9 is fixedly arranged at the bin mouth of the collecting bin 3. The collecting bin 3 is connected to a vacuum pump. The vacuum pump is used to evacuate the collecting bin 3.

[0031] Firstly, since the current guide tape 12 is made of PU material, and the resin glue layer 13 is bonded thereto after the resin glue solidifies, the two are layers of different materials, and the resin glue layer 13 can be scraped off the guide tape 12 with the help of a metal cutting knife 9 .

[0032] In this degumming device, the round roller 7 is used to support the guide belt 12, and the cutting guide is used to scrape the resin glue on the guide belt 12 from the guide belt 12. Since the cutting knife 9 is arranged at the port of the collecting silo 3, the resin glue layer 13 scraped off from the guide belt 12 by the cutting knife 9 will enter the collecting silo 3. At the same time, since the air exhaust interface 4 of the collecting silo 3 is connected to a vacuum pump, the vacuum pump performs a negative pressure operation on the collecting silo 3. Under negative pressure, the resin glue layer 13 entering the collecting silo 3 has a tendency to be further pulled into the collecting silo 3 (that is, the collecting silo 3 in a negative pressure state itself has a tendency to pull the resin glue layer 13 into the collecting silo 3). In this way, the guide belt 12 and the resin glue layer 13 are separated by the cutting separation of the cutting knife 9 and the negative pressure suction and pulling action of the collecting silo 3, and the resin glue layer 13 can be scraped off from the guide belt 12 without using rosin water.

[0033] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, it also includes a nozzle 11, which is arranged on the collecting bin 3 or the bracket 5, and the nozzle 11 faces the cutting blade 9.

[0034] The specific direction in which the nozzle 11 sprays the liquid is opposite to the direction in which the guide belt 12 travels. The nozzle 11 sprays a liquid with a lubricating effect (which can be a low-concentration sodium carbonate solution). These liquids are sprayed onto the cutting blade 9. On the one hand, they can play a lubricating role. On the other hand, the liquid impacts the gap between the resin glue layer 13 and the guide belt 12, which will form a force that tears the guide belt 12 and the resin glue layer 13, making it easier for the cutting blade 9 to scrape the resin glue layer 13 off the guide belt 12.

[0035] For details, please refer to the attached Figure 3 As shown in , the nozzle 11 is located below the collecting bin 3 (the nozzle 11 can also be installed on the bracket 5), and the nozzle 11 is located above the round roller 7, but the nozzle 11 does not contact the guide belt 12. The liquid flow ejected by the nozzle 11 is ejected toward the cutting blade 9. During operation, the cutting blade 9 is located in the front, and the nozzle 11 is located in the rear. Specifically, the nozzle 11 is connected to the liquid pump through a hose, and the liquid pump transports the liquid into the nozzle through the hose and ejects it out. The liquid ejected by the nozzle can be a low-concentration sodium carbonate solution or other liquid with lubricating effect. The liquid can lubricate the first contact surface of the cutting blade and the guide belt.

[0036] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, two flat square rods 8 are also included, which are arranged on the bracket 5 and between two parallel round rollers 7. The flat square rods 8 do not contact the round rollers 7, and flat square rods 8 are arranged on both sides of the cutting blade 9. The plane where the flat square rods 8 contact the guide belt 12 is the section of the round roller 7 (the round roller 7 supports the guide belt 12 through this section).

[0037] Specifically, the function of the flat supporting square rod 8 is to support the guide belt 12. Specifically, all the round rollers 7 are in the same plane, and the two flat supporting square rods 8 are in a flush state.

[0038] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, it also includes an exhaust pipe 10, which is arranged on the bracket 5. A plurality of air holes 1001 are arranged on the pipe wall of the exhaust pipe 10, and there are two exhaust pipes 10, and exhaust pipes 10 are arranged on both sides of the cutting blade 9.

[0039] The purpose of setting the suction pipe 10 is to draw negative pressure to the guide belt 12. Specifically, when in use, the collecting bin 3 and the cutting knife 9 are located above the guide belt 12, and the flat support square rod 8 and the suction pipe 10 are located below the guide belt 12. Specifically, the suction pipe 10 is also connected to a vacuum pump. The opening of the air hole 1001 on the suction pipe 10 faces the guide belt 12. When the suction pipe 10 is evacuated, it has a tendency to suck the guide belt 12 tightly. However, due to the support of the flat support square rod 8, the guide belt 12 will not be sucked to the suction pipe 10 by the suction pipe 10. Therefore, the present device When the device is in use, the cutting blade has a tendency to cut the resin glue layer 13 and the guide belt 12 from the middle, and the exhaust pipe 10 has a tendency to pull the guide belt 12 downward, and the collecting silo 3 in a negative pressure state has a tendency to absorb the resin glue layer 13 at the top, which is equivalent to the upper and lower air flows having a tendency to suck away the resin glue layer 13 and the guide belt 12 respectively, and the cutting blade 9 located in the middle splits the resin glue layer 13 and the guide belt 12 from the middle, so that the resin glue layer 13 and the guide belt 12 can be quickly separated.

[0040] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, it also includes a screw mechanism 1, which has two sets. The two sets of screw mechanisms 1 are both arranged on the bracket 5, and each set of screw mechanisms 1 is provided with a sliding block. The two ends of the suspension rod 2 are respectively fixed on the sliding blocks of the two sets of screw mechanisms 1.

[0041] The purpose of using the screw mechanism 1 to install the suspension rod 2 is to adjust the distance between the suspension rod 2 and the round roller 7, so that the distance between the collecting bin 3 (together with the cutting blade 9 and the nozzle 11) and the guide belt 12 can be adjusted. When adjusting, just shake the handle 101 of the screw mechanism 1 to adjust the movement of the slider, thereby adjusting the position of the entire suspension rod 2 relative to the round roller 7.

[0042] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, the cutting tool 9 includes a first contact surface, a second contact surface and an arc guide surface 903. The arc guide surface 903 is connected to the second contact surface, and the angle formed by the first contact surface and the second contact surface is an acute angle.

[0043] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, the first contact surface 901 is used to be in close contact with the conductive tape 12 , and the second contact surface 902 is used to be in contact with the resin glue layer 13 .

[0044] For details, please refer to the attached Figure 4As shown in the figure, during cutting, the first contact surface is close to the guide belt 12, and the first contact surface presses the guide belt 12 against the round roller 7 (but does not cause the guide belt to be stuck), and the guide belt 12 moves to the right with the resin glue layer 13. Under the lifting action of the second contact surface, the resin glue layer 13 begins to separate from the guide belt 12 and slides into the collecting silo 3 along the second contact surface. The collecting silo 3 is in a negative pressure state at this time, so the resin glue layer 13 has a tendency to be sucked into the collecting silo 3.

[0045] The arc guide surface 903 serves to guide the resin glue layer 13 , so that the resin glue layer slides into the collection bin 3 under the guiding effect of the arc guide surface 903 at the moment when it slides away from the second contact surface.

[0046] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, some of the round rollers 7 are provided with spikes.

[0047] Because the guide belt 12 is made of PU material and the round roller 7 is a steel roller, there is a certain probability that the guide belt 12 will slip during the rotation process. Therefore, in order to improve the stability of the guide belt 12 during transportation, some sharp thorns are provided on some round rollers 7. The sharp thorns are used to increase the friction between the round roller 7 and the guide belt 12, so that the guide belt 12 can be stably transported along the rotation direction of the round roller 7.

[0048] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, the collecting bin 3 is a trapezoidal collecting bin 3 .

[0049] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, the transmission member includes a chain and a sprocket, and the sprocket is installed on the round roller 7, and the chain and the sprocket are matched together.

[0050] Specifically, sprockets are installed on the round rollers 7 , and the sprockets are linked with each other through chains, so that all the round rollers 7 are linked with each other.

[0051] For details, please refer to the attached Figure 3 As shown in FIG. , the exhaust pipe 10 is located below the supporting square rod 8 .

[0052] It should be noted that the Figure 3 Taking the direction shown in as an example, after the resin glue layer enters the collecting bin, the interface of the collecting bin 3 is located above the resin glue layer, which can reduce the blockage of the resin glue layer.

[0053] Embodiment 2,

[0054] A degumming method suitable for the degumming device as described in Example 1. This scheme requires the use of the degumming device as shown in Example 1. During degumming, the first contact surface of the cutting knife presses the guide belt, and the guide belt moves along the rotation direction of the round roller under the rotation of the round roller, and then the nozzle sprays the solution to the cutting knife. The spraying direction of the solution is opposite to the moving direction of the guide belt, so that the exhaust pipe draws the guide belt downward, and the collecting bin draws the resin glue layer upward.

[0055] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent transformations made using the contents of the present invention specification, directly or indirectly used in other related technical fields, are also included in the protection scope of the present invention.

Claims

1. A degumming device for a guide belt of a digital printing machine, comprising a bracket and a plurality of round rollers, wherein the round rollers are rotatably mounted on the bracket, the round rollers are in a parallel and non-contacting state, the round rollers are matched together through transmission parts, a motion motor is arranged on the bracket, and the motion motor is matched with the round rollers, characterized in that: It also includes a suspension rod, a collecting bin and a cutting knife, wherein the suspension rod is arranged on one side of the bracket, the collecting bin is arranged on the suspension rod, the cutting knife is fixedly arranged at the bin opening of the collecting bin, the collecting bin is connected to a vacuum pump, and the vacuum pump is used to evacuate the collecting bin; It also includes a plurality of flat square rods, which are arranged on the bracket and located between two parallel round rollers. The flat square rods are not in contact with the round rollers, and there are at least two flat square rods. The flat square rods are arranged on both sides of the cutting blade. It also includes an air extraction pipe, which is arranged on the bracket, and has a plurality of air holes on the pipe wall of the air extraction pipe. There are at least two air extraction pipes, and both sides of the cutting blade are provided with air extraction pipes; The collecting silo and the cutting knife are located above the guide belt, while the flat supporting square rod and the exhaust pipe are located below the guide belt. The openings of the air holes on the exhaust pipe face the guide belt. The exhaust pipe has a tendency to suck the guide belt tightly when exhausting air, and the guide belt will not be sucked into the exhaust pipe due to the supporting effect of the flat supporting square rod. The cutting knife has a tendency to cut the resin glue layer and the guide belt from the middle, and the exhaust pipe has a tendency to pull the guide belt downward. The collecting silo in a negative pressure state has a tendency to absorb the resin glue layer at the top.

2. The degumming device for the guide belt of a digital printing machine as claimed in claim 1, characterized in that: It also includes a nozzle, which is arranged on the collecting bin or the bracket and faces the cutting blade.

3. The degumming device for the guide belt of a digital printing machine according to claim 1, characterized in that: It also includes a screw mechanism, which has two sets. The two sets of screw mechanisms are both arranged on the bracket, and each set of screw mechanisms is provided with a sliding block. The two ends of the suspension rod are respectively fixed on the sliding blocks of the two sets of screw mechanisms.

4. The degumming device for the guide belt of a digital printing machine according to claim 1, characterized in that: The cutting tool comprises a first contact surface, a second contact surface and an arc guide surface, the arc guide surface is connected to the second contact surface, and the angle formed by the first contact surface and the second contact surface is an acute angle.

5. The degumming device for the guide belt of a digital printing machine as claimed in claim 4, characterized in that: The first contact surface is used to be in close contact with the conductive tape, and the second contact surface is used to be in contact with the resin glue layer.

6. The degumming device for the guide belt of a digital printing machine according to claim 1, characterized in that: Some of the round rollers are provided with spikes.

7. The degumming device for the guide belt of a digital printing machine according to claim 1, characterized in that: The collecting bin is a trapezoidal collecting bin.

8. The degumming device for the guide belt of a digital printing machine as claimed in claim 1, characterized in that: The transmission member comprises a chain and a sprocket, the round roller is provided with a sprocket, and the chain and the sprocket are matched together.

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