Pneumatic pressurizing water jet roll changing device

Abstract

The utility model relates to the technical field of water jet roll changing, in particular to a pneumatic pressurizing water jet roll changing device which comprises a supporting seat, a roll changing water cutting structure is rotatably mounted on the supporting seat, a driving gas station is arranged above the supporting seat, and one side of the driving gas station is communicated with a pneumatic high-pressure pump station. The other side of the pneumatic high-pressure pump station is communicated with a high-pressure liquid storage station, the other side of the high-pressure liquid storage station is provided with an operation control station, a glue pump station is arranged above the high-pressure liquid storage station, and the pneumatic high-pressure pump station comprises a first box shell, an air cylinder, a pressurizing push rod and a first air tank. A power source of the high-pressure water jet cutter can be provided through the pneumatic high-pressure pump station, a large number of power cables cannot be laid, meanwhile, due to the fact that the structure of the pneumatic high-pressure pump station is simple, the reel replacing cost is reduced, and meanwhile the maintenance cost of the reel replacing device is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of pneumatic pressurization water blade roll changing device, in particular to a kind of pneumatic pressurization water blade roll changing device, belong to water blade roll changing technical field. BACKGROUND

[0002] The roll changing device is a device for automatically switching material rolls, which can automatically connect another standby material roll to the production line when a material roll is used up during production, thereby realizing continuous production, improving production efficiency, and reducing manual intervention and downtime.

[0003] However, the existing roll changing device uses a traditional plunger hydraulic pump to provide the power source for the high-pressure water blade, which will lay a large number of power cables. Moreover, the plunger hydraulic pump structure is relatively complex, which increases the cost of the roll changing belt and significantly increases the maintenance cost of the roll changing device.

[0004] Therefore, there is an urgent need for a pneumatic pressurization water blade roll changing device to solve the above problems. SUMMARY

[0005] The utility model aims to provide a kind of pneumatic pressurization water blade roll changing device, which can provide the power source for the high-pressure water blade through a pneumatic high-pressure pump station, which will not lay a large number of power cables. Moreover, the pneumatic high-pressure pump station structure is relatively simple, which reduces the cost of the roll changing belt and significantly reduces the maintenance cost of the roll changing device.

[0006] To achieve the above purpose, the utility model adopts the main technical scheme, which includes a support seat, a roll changing water cutting structure is rotatably installed on the support seat, a drive gas station is provided above the support seat, a pneumatic high-pressure pump station is communicatively connected to one side of the drive gas station, a high-pressure liquid storage station is communicatively connected to the other side of the pneumatic high-pressure pump station, an operation control station is provided on the other side of the high-pressure liquid storage station, a glue pump station is provided above the high-pressure liquid storage station, and the pneumatic high-pressure pump station includes a first box shell, a cylinder provided in the first box shell, a pressurized push rod slidingly and sealingly installed in the cylinder, and a first gas tank communicatively connected above the end of the cylinder.

[0007] Preferably, the cylinder is fixed in the first box shell by a first support leg, the cylinder is divided into a first cavity, a second cavity and a third cavity by the pressurized push rod, a first connecting block is communicatively connected to the outside of the third cavity, the first gas tank is communicatively connected to the first connecting block by a first connecting pipe, and a first electrically controlled one-way check valve is provided on the first connecting pipe.

[0008] Preferably, the driving gas station comprises a second box shell and a second gas tank installed in the second box shell, the second gas tank is fixed in the second box shell through a second supporting leg, one side of an outer end surface of the second cavity is communicated with a second connecting pipe, the other side of the outer end surface of the second cavity is communicated with a third connecting pipe, a second electric control one-way check valve is arranged on the second connecting pipe, a third electric control one-way check valve is arranged on the third connecting pipe, and the second connecting pipe and the third connecting pipe are communicated and arranged on the third connecting pipe at the end.

[0009] Preferably, one side of an outer end surface of the first cavity is communicated with a fourth connecting pipe, the other side of the outer end surface of the first cavity is communicated with a fifth connecting pipe, a fourth electric control one-way check valve is arranged on the fourth connecting pipe, a fifth electric control one-way check valve is arranged on the fifth connecting pipe, and the fourth connecting pipe and the fifth connecting pipe are communicated and arranged on the third connecting pipe at the end.

[0010] Preferably, the high-pressure liquid storage station comprises a third box shell and a high-pressure liquid tank arranged in the third box shell, the high-pressure liquid tank is connected with the first connecting block through a sixth connecting pipe, a sixth electric control one-way check valve is arranged on the sixth connecting pipe, and the operation control station comprises a fourth box shell and a control console arranged in the fourth box shell.

[0011] Preferably, the glue pump station comprises a fifth box shell and a high-pressure glue pump arranged in the fifth box shell, a glue spraying pipe is arranged on the high-pressure glue pump in communication, a seventh electric control one-way check valve is arranged on the glue spraying pipe, and a glue spraying gun is arranged on the glue spraying pipe.

[0012] Preferably, the roll changing water cutting structure comprises a first lead screw rotatably connected in the support base, a second lead screw rotatably connected in the support base and below the first lead screw, a first gear arranged at two ends of the first lead screw, a second gear arranged at two ends of the second lead screw, a driving motor arranged on the support base, a third gear arranged at an output end of the driving motor, a first water cutter rotatably sleeved on the first lead screw, and a second water cutter rotatably sleeved on the second lead screw.

[0013] Preferably, the first gear and the second gear are in mesh with each other, the third gear and the first gear are in mesh with each other, the first water cutter and the second water cutter are both communicated and arranged on the high-pressure liquid tank through a seventh connecting pipe, eighth electric control one-way check valves are arranged on the first water cutter and the second water cutter, a first sliding block is arranged on the first water cutter, a first sliding groove matched with the first sliding block is formed in the support base, a second sliding block is arranged on the second water cutter, and a second sliding groove matched with the second sliding block is formed in the support base.

[0014] The utility model has at least the following beneficial effects:

[0015] 1, the utility model discloses a power source of high pressure water cutter can be provided through pneumatic high pressure pump station, this will not lay a large number of power cable, and simultaneously because the simple structure of pneumatic high pressure pump station, thereby make the cost of roll changing belt reduced, and also make the maintenance cost of roll changing device greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0017] Figure 1 It is the whole internal structure front view of the utility model;

[0018] Figure 2 It is the whole internal structure back view of the utility model;

[0019] Figure 3 It is the cylinder half cut structure schematic view of the utility model;

[0020] Figure 4 It is the whole internal structure schematic view of the utility model;

[0021] Figure 5 It is the support seat and roll changing water cutting structure schematic view of the utility model;

[0022] Figure 6 It is the whole appearance schematic view of the utility model.

[0023] In the figure, 1, support seat; 2, roll changing water cutting structure; 3, driving gas station; 4, pneumatic high-pressure pump station; 5, high-pressure liquid storage station; 6, operation control station; 7, glue pump station; 8, first box shell; 9, air cylinder; 10, booster push rod; 11, first gas tank; 12, first support leg; 13, first cavity; 14, second cavity; 15, third cavity; 16, first connecting block; 17, first connecting pipe; 18, first electric control one-way check valve; 19, second box shell; 20, second gas tank; 21, second support leg; 22, second connecting pipe; 23, third connecting pipe; 24, second electric control one-way check valve; 25, third electric control one-way check valve; 26, fourth connecting pipe; 27, fifth connecting pipe; 28, fifth electric control one-way check valve; 29, third box shell; 30, high-pressure liquid tank; 31, sixth connecting pipe; 32, sixth electric control one-way check valve; 33, fourth box shell; 34, control console; 35, fifth box shell; 36, high-pressure glue pump; 37, glue spraying pipe; 38, seventh electric control one-way check valve; 39, glue spraying gun; 40, first lead screw; 41, second lead screw; 42, first gear; 43, second gear; 44, driving motor; 45, third gear; 46, first water jet; 47, second water jet; 48, eighth electric control one-way check valve; 49, first sliding block; 50, first sliding groove; 51, second sliding block; 52, second sliding groove; 53, fourth electric control one-way check valve; 54, seventh connecting pipe. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described in detail with the accompanying drawings and examples, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

[0025] As Figures 1-6As shown, the air-boosted water blade roll changing device provided by the embodiment comprises a support base 1, the support base 1 is rotatably installed with a roll changing water cutting structure 2, a driving gas station 3 is arranged above the support base 1, a pneumatic high-pressure pump station 4 is communicated and arranged on one side of the driving gas station 3, a high-pressure liquid storage station 5 is communicated and arranged on the other side of the pneumatic high-pressure pump station 4, an operation control station 6 is arranged on the other side of the high-pressure liquid storage station 5, a glue pump station 7 is arranged above the high-pressure liquid storage station 5, the pneumatic high-pressure pump station 4 comprises a first box shell 8, a cylinder 9 arranged in the first box shell 8, a pressure boosting push rod 10 slidingly and sealingly installed in the cylinder 9, and a first gas tank 11 communicated and arranged above the end of the cylinder 9, the support base 1 is convenient for supporting and fixing the roll changing water cutting structure 2, the driving gas station 3, the pneumatic high-pressure pump station 4, the high-pressure liquid storage station 5 and the operation control station 6, the roll changing water cutting structure 2 is convenient for cutting and changing the roll of the paper tape on the paper machine and the reverse water blade, the driving gas station 3 is convenient for providing driving gas for the pneumatic high-pressure pump station 4, the pneumatic high-pressure pump station 4 is convenient for providing the power source of the high-pressure water blade through the pneumatic booster pump, which reduces the laying of power cables, and compared with the traditional plunger type hydraulic pump, the pneumatic booster pump is more cost-effective and the maintenance cost is greatly reduced, the high-pressure liquid storage station 5 is convenient for temporarily storing the pressurized liquid, the operation control station 6 is convenient for controlling the control operation of the device, the glue pump station 7 is convenient for spraying glue on the cut paper, so that the paper tail cut by the water blade is pasted on the reel, the first box shell 8 is convenient for protecting the cylinder 9, the cylinder 9 cooperates with the pressure boosting push rod 10 to boost the gas in the first gas tank 11, and the pressurized gas is pushed into the high-pressure liquid storage station 5, and the first gas tank 11 is convenient for storing the gas to be pressurized.

[0026] Further, as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the cylinder 9 is fixed in the first box shell 8 through the first support leg 12, the cylinder 9 is divided into the first cavity 13, the second cavity 14 and the third cavity 15 by the pressurizing push rod 10, the first connecting block 16 is arranged on the outer side of the third cavity 15 in communication, the first gas tank 11 is arranged on the first connecting block 16 in communication through the first connecting pipe 17, the first electric control one-way check valve 18 is arranged on the first connecting pipe 17, the first support leg 12 is convenient for fixing the cylinder 9 in the first box shell 8, the first cavity 13 and the second cavity 14 are convenient for driving the pressurizing push rod 10 and the reverse reciprocating movement under the action of the compressed gas in the second gas tank 20, so as to pressurize the gas entering the third cavity 15 from the first gas tank 11, and push the pressurized gas into the high-pressure liquid storage station 5, the first connecting block 16 plays a connecting role, the first connecting pipe 17 is convenient for connecting the first gas tank 11 and the first connecting block 16 together, so as to realize the communication between the first gas tank 11 and the third cavity 15 of the cylinder 9, and the first electric control one-way check valve 18 is convenient for realizing the opening and closing of the system control pipeline, and at the same time, it is ensured that the low-pressure gas in the third cavity 15 will not flow back to the first gas tank 11.

[0027] Further, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the driving gas station 3 includes a second box shell 19 and a second gas tank 20 installed in the second box shell 19, the second gas tank 20 is fixed in the second box shell 19 through the second support leg 21, the second connecting pipe 22 is arranged on one side of the outer end surface of the second cavity 14 in communication, the third connecting pipe 23 is arranged on the other side of the outer end surface of the second cavity 14 in communication, the second electric control one-way check valve 24 is arranged on the second connecting pipe 22, the third electric control one-way check valve 25 is arranged on the third connecting pipe 23, the second connecting pipe 22 and the third connecting pipe 23 are both arranged on the third connecting pipe 23 in communication, the second box shell 19 is convenient for protecting the second gas tank 20, the tank 20 is convenient for storing driving gas, the second support leg 21 is convenient for fixing the second gas tank 20 in the second box shell 19, the second connecting pipe 22 is convenient for injecting the driving gas in the second gas tank 20 into the second cavity 14, the third connecting pipe 23 is convenient for pressing the driving gas in the second cavity 14 back into the second gas tank 20, the second electric control one-way check valve 24 is convenient for realizing the opening and closing of the system control pipeline, and at the same time, it is ensured that the driving gas in the second cavity 14 will not flow back to the second gas tank 20 when being injected, and the third electric control one-way check valve 25 is convenient for realizing the opening and closing of the system control pipeline, and at the same time, it is ensured that the driving gas in the second cavity 14 will not flow back to the second cavity 14 when being pushed out.

[0028] Further, as shown in Figure 1 , Figure 2 , Figure 3 andFigure 4 As shown in the figure, the fourth connecting pipe 26 is arranged on one side of the outer end surface of the first cavity 13, the fifth connecting pipe 27 is arranged on the other side of the outer end surface of the first cavity 13, the fourth electrically controlled one-way valve 53 is arranged on the fourth connecting pipe 26, the fifth electrically controlled one-way valve 28 is arranged on the fifth connecting pipe 27, the fourth connecting pipe 26 and the fifth connecting pipe 27 are both arranged on the third connecting pipe 23, the fourth connecting pipe 26 is convenient for injecting the driving gas in the second gas tank 20 into the first cavity 13, the fifth connecting pipe 27 is convenient for pushing the driving gas in the first cavity 13 back into the second gas tank 20, the fourth electrically controlled one-way valve 53 is convenient for realizing the opening and closing of the system control pipeline, and at the same time, it ensures that the driving gas in the first cavity 13 will not flow back to the second gas tank 20 when it is injected, the fifth electrically controlled one-way valve 28 is convenient for realizing the opening and closing of the system control pipeline, and at the same time, it ensures that the driving gas in the first cavity 13 will not flow back to the second cavity 14 when it is pushed out.

[0029] Further, as shown in the figures, Figure 1 , Figure 2 , Figure 3 and Figure 4 , the high-pressure liquid storage station 5 includes a third box shell 29 and a high-pressure liquid tank 30 arranged in the third box shell 29, the high-pressure liquid tank 30 is connected with the first connecting block 16 through the sixth connecting pipe 31, the sixth electrically controlled one-way valve 32 is arranged on the sixth connecting pipe 31, the operation control station 6 includes a fourth box shell 33 and a control console 34 arranged in the fourth box shell 33, the third box shell 29 is convenient for protecting the high-pressure liquid tank 30, the high-pressure liquid tank 30 is convenient for temporarily storing the pressurized liquid, the sixth connecting pipe 31 is convenient for connecting the high-pressure liquid tank 30 and the first connecting block 16 together, and at the same time, it ensures that the high-pressure liquid tank 30 is connected with the third cavity 15 in the cylinder 9, the sixth electrically controlled one-way valve 32 is convenient for realizing the opening and closing of the system control pipeline, and at the same time, it ensures that the high-pressure gas in the third cavity 15 will not flow back to the third cavity 15 when it enters the high-pressure liquid tank 30, the fourth box shell 33 is convenient for protecting the control console 34, and the control console 34 is convenient for controlling the device and the reverse operation.

[0030] Further, as shown in the figures, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the glue pump station 7 comprises a fifth box shell 35 and a high-pressure glue pump 36 arranged in the fifth box shell 35, the high-pressure glue pump 36 is communicated with a glue spraying pipe 37, the glue spraying pipe 37 is provided with a seventh electric control one-way check valve 38, the glue spraying pipe 37 is provided with a glue spraying gun 39, the fifth box shell 35 is convenient for protecting the high-pressure glue pump 36, the high-pressure glue pump 36 is convenient for high-pressure processing of glue, the glue spraying pipe 37 is convenient for connecting the high-pressure glue pump 36 and the glue spraying gun 39 together, and the glue spraying gun 39 is convenient for spraying high-pressure glue.

[0031] Further, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 1 shown, the roll changing water cutting structure 2 comprises a first lead screw 40 rotatably connected in the support seat 1, a second lead screw 41 rotatably connected in the support seat 1 and below the first lead screw 40, a first gear 42 arranged at both ends of the first lead screw 40, a second gear 43 arranged at both ends of the second lead screw 41, a driving motor 44 arranged on the support seat 1, a third gear 45 arranged at the output end of the driving motor 44, a first water cutter 46 screwed on the first lead screw 40, and a second water cutter 47 screwed on the second lead screw 41, the first lead screw 40 is convenient for controlling the first water cutter 4 to move horizontally by rotating, the second lead screw 41 is convenient for controlling the second water cutter 47 to move horizontally by rotating, the first gear 42 and the second gear 43 cooperate with each other to realize the reverse motion of the second lead screw 41 when the first lead screw 40 rotates, so that only one driving force can realize the movement of the first water cutter 46 and the second water cutter 47, the driving motor 44 is convenient for providing driving force for the rotation of the first lead screw 40 and the second lead screw 41, the third gear 45 is convenient for transmitting the driving force of the driving motor 44 to the second gear 43, and the first water cutter 46 and the second water cutter 47 are convenient for cutting the paper tape on the paper machine and the reverse water cutter.

[0032] Further, as shown in Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 1As shown, the first gear 42 and the second gear 43 are meshed with each other, the third gear 45 and the first gear 42 are meshed with each other, the first water jet 46 and the second water jet 47 are both connected through the seventh connecting pipe 54 and are arranged on the high-pressure liquid tank 30, the first water jet 46 and the second water jet 47 are both provided with an eighth electrically controlled one-way flow-stop valve 48, the first water jet 46 is provided with a first slider 49, the support seat 1 is provided with a first slide 50 adapted to the first slider 49, and the second water jet 47 is provided with a second slider 5 1. A second chute 52 adapted to the second slider 51 is provided on the support seat 1. The seventh connecting pipe 54 facilitates connecting the first water jet 46 and the second water jet 47 to the high-pressure liquid tank 30. The eighth electrically controlled one-way stop valve 48 facilitates controlling the circulation and interception of the high-pressure water flow in the first water jet 46 and the second water jet 47. The first slider 49 and the first chute 50 facilitate the sliding of the first water jet 46 on the support seat 1. The second slider 51 and the second slider 51 facilitate the sliding of the second water jet 47 on the support seat 1.

[0033] like Figure 2 Figure 4 Figure 5 Figure 6 Figures 1-6 As shown, the principle of the pneumatic booster water jet roll changing device provided in this embodiment is as follows: when using the device, the device should be installed on the paper winder first, and then the pneumatic high-pressure pump station 4 starts to operate, at this time the fourth electrically controlled one-way flow-stop valve 53 is opened, and then the driving gas in the second gas tank 20 is injected into the first cavity 13 through the fourth connecting pipe 26, and then the driving gas pushes the boost push rod 10 to move, and then the fourth electrically controlled one-way flow-stop valve 53 is closed, and at this time the second electrically controlled one-way flow-stop valve 24 is opened, and then the driving gas in the second gas tank 20 is injected into the second cavity 14 through the second connecting pipe 22, and then the driving gas pushes the boost push rod 10 to move, and then the second electrically controlled one-way flow-stop valve 24 is closed, and at the same time the fifth electrically controlled one-way flow-stop valve 28 is opened, and then After that, the driving gas in the first cavity 13 is pressed into the second gas tank 20 through the fifth connecting pipe 27, and then the driving gas pushes the boost push rod 10 to move, and then the fifth electrically controlled one-way flow-stop valve 28 is closed. At this time, the fourth electrically controlled one-way flow-stop valve 53 is opened, and then the driving gas in the second gas tank 20 is injected into the first cavity 13 through the fourth connecting pipe 26, and then the driving gas pushes the boost push rod 10 to move, and then the fourth electrically controlled one-way flow-stop valve 53 is closed, and at the same time the third electrically controlled one-way flow-stop valve 25 is opened, and then the driving gas in the second cavity 14 is pressed into the second gas tank 20 through the third connecting pipe 23, and then the driving gas pushes the boost push rod 10 to move, and the above process is repeated, which can make the boost push rod 10 move back and forth;

[0034] When the push booster push rod 10 reciprocating motion is carried out, the first electric control one-way check valve 18 is opened, and then the low pressure gas in the first gas tank 11 is injected into the third cavity 15 through the first connecting pipe 17 and the first connecting block 16, and then the first electric control one-way check valve 18 is closed, and then the sixth electric control one-way check valve 32 is opened, at this time the push booster push rod 10 will be in the third cavity 15 in the low pressure gas through the push into the high pressure liquid tank 30, and then the sixth electric control one-way check valve 32 is closed;

[0035] When the paper on the paper winding machine needs to be cut, the driving motor 44 drives the third gear 45 to start rotating, which drives the first gear 42 to rotate, and at the same time, the second gear 43 starts to rotate under the rotation of the first gear 42, and the first lead screw 40 and the second lead screw 41 start to rotate under the action of the first gear 42 and the second gear 43, which can drive the first water cutter 46 and the second water cutter 47 to the specified position;

[0036] At this time, the seventh electric control one-way check valve 38 is opened, and under the action of the high pressure glue pump 36, the glue is sprayed from the glue gun 39, so that the glue is sprayed on the paper on the paper winding machine, and then the seventh electric control one-way check valve 38 is closed, and at the same time, the eighth electric control one-way check valve 48 is opened, at this time, the high pressure water flow in the high pressure liquid tank 30 is sprayed from the first water cutter 46 and the second water cutter 47 through the seventh connecting pipe 54, and at the same time, the first water cutter 46 and the second water cutter 47 are pushed to slide in the support seat 1 under the action of the first gear 42, the first lead screw 40, the second gear 43, the second lead screw 41, the third gear 45 and the driving motor 44, which makes the sliding first water cutter 46 and the second water cutter 47 cut the paper on the paper winding machine, after cutting, the seventh electric control one-way check valve 38 is closed, and at the same time, the eighth electric control one-way check valve 48 is closed, and under the action of the first gear 42, the first lead screw 40, the second gear 43, the second lead screw 41, the third gear 45 and the driving motor 44, the first water cutter 46 and the second water cutter 47 return to the initial position.

[0037] As some terms are used in the description and claims to refer to certain components. Those skilled in the art should understand that the same component may be referred to by different names by hardware manufacturers. The description and claims of this specification do not distinguish components by name differences, but by functional differences. As mentioned throughout the specification and claims, "comprising" is an open term, which should be interpreted as "comprising but not limited to". "Approximately" means within an acceptable error range, and those skilled in the art can solve technical problems within a certain error range, basically achieving the technical effect.

[0038] It is to be understood that the terminology "including", "comprising", or any other variation thereof, is intended to cover a non-exclusive inclusion such that a product or process that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such product or process. An element proceeded by "comprises a" does not, without further recitation, preclude the inclusion of additional elements of that element or the possibility of additional elements that are the same as that element.

[0039] The above description illustrates and describes several preferred embodiments of the present application, but it is to be understood that the present application is not limited to the above-described forms, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the present application concept described herein, by the above teachings or related art or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the appended claims of the present application.

Claims

1. A pneumatic pressurized water jet roll changing device, comprising a support base (1), characterized in that: The support seat (1) is rotatably mounted with a roll-changing water cutting structure (2); a driving gas station (3) is arranged above the support seat (1); a pneumatic high-pressure pump station (4) is connected to one side of the driving gas station (3); a high-pressure liquid storage station (5) is connected to the other side of the pneumatic high-pressure pump station (4); an operation control station (6) is arranged on the other side of the high-pressure liquid storage station (5); a glue pump station (7) is arranged above the high-pressure liquid storage station (5); the pneumatic high-pressure pump station (4) comprises a first box shell (8), a cylinder (9) arranged in the first box shell (8), a booster push rod (10) installed in the cylinder (9) with a sliding seal, and a first gas tank (11) connected and arranged above the end of the cylinder (9).

2. The pneumatic pressurized water jet roll changing device according to claim 1, characterized in that: The cylinder (9) is fixed in the first box shell (8) through a first supporting leg (12), and the cylinder (9) is divided into a first cavity (13), a second cavity (14) and a third cavity (15) by the boost push rod (10). The cylinder (9) is connected to a first connecting block (16) on the outside near the third cavity (15), and the first gas tank (11) is connected to the first connecting block (16) through a first connecting pipe (17), and the first connecting pipe (17) is provided with a first electrically controlled one-way flow-stop valve (18).

3. The pneumatic pressurized water jet roll changing device according to claim 2, characterized in that: The driving gas station (3) comprises a second box shell (19) and a second gas tank (20) installed in the second box shell (19); the second gas tank (20) is fixed in the second box shell (19) via a second supporting leg (21); a second connecting pipe (22) is connected to one side of the outer end surface of the second cavity (14); a third connecting pipe (23) is connected to the other side of the outer end surface of the second cavity (14); a second electrically controlled one-way flow-stop valve (24) is provided on the second connecting pipe (22); a third electrically controlled one-way flow-stop valve (25) is provided on the third connecting pipe (23); and the ends of the second connecting pipe (22) and the third connecting pipe (23) are both connected and arranged on the third connecting pipe (23).

4. The pneumatic pressurized water jet roll changing device according to claim 3, characterized in that: A fourth connecting pipe (26) is provided on one side of the outer end surface of the first cavity (13), and a fifth connecting pipe (27) is provided on the other side of the outer end surface of the first cavity (13). A fourth electrically controlled one-way flow-stop valve (53) is provided on the fourth connecting pipe (26), and a fifth electrically controlled one-way flow-stop valve (28) is provided on the fifth connecting pipe (27). The ends of the fourth connecting pipe (26) and the fifth connecting pipe (27) are both connected to the third connecting pipe (23).

5. The pneumatic pressurized water jet roll changing device according to claim 2, characterized in that: The high-pressure liquid storage station (5) comprises a third tank shell (29) and a high-pressure liquid tank (30) arranged in the third tank shell (29); the high-pressure liquid tank (30) is connected to the first connection block (16) via a sixth connecting pipe (31); a sixth electrically controlled one-way flow-stop valve (32) is provided on the sixth connecting pipe (31); and the operation control station (6) comprises a fourth tank shell (33) and a control console (34) arranged in the fourth tank shell (33).

6. The pneumatic pressurized water jet roll changing device according to claim 1, characterized in that: The glue pump station (7) comprises a fifth housing (35) and a high-pressure glue pump (36) arranged in the fifth housing (35); a glue spraying pipe (37) is connected to the high-pressure glue pump (36); a seventh electrically controlled one-way flow-stop valve (38) is arranged on the glue spraying pipe (37); and a glue spraying gun (39) is arranged on the glue spraying pipe (37).

7. The pneumatic pressurized water jet roll changing device according to claim 5, characterized in that: The roll-changing waterjet cutting structure (2) comprises a first screw rod (40) rotatably connected to the support seat (1), a second screw rod (41) rotatably connected to the support seat (1) and below the first screw rod (40), a first gear (42) arranged at both ends of the first screw rod (40), a second gear (43) arranged at both ends of the second screw rod (41), a driving motor (44) arranged on the support seat (1), a third gear (45) arranged at the output end of the driving motor (44), a first waterjet (46) screwed and sleeved on the first screw rod (40), and a second waterjet (47) screwed and sleeved on the second screw rod (41).

8. The pneumatic pressurized water jet roll changing device according to claim 7, characterized in that: The first gear (42) and the second gear (43) are meshed with each other, the third gear (45) and the first gear (42) are meshed with each other, the first water jet (46) and the second water jet (47) are both connected to the high-pressure liquid tank (30) through a seventh connecting pipe (54), an eighth electrically controlled one-way flow-stop valve (48) is provided on the first water jet (46) and the second water jet (47), a first slider (49) is provided on the first water jet (46), a first slide groove (50) adapted to the first slide groove (49) is provided on the support seat (1), a second slide groove (51) is provided on the second water jet (47), and a second slide groove (52) adapted to the second slide groove (51) is provided on the support seat (1).

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