Nozzle adjusting device

Abstract

The utility model discloses a nozzle adjusting device which comprises a nozzle, a supporting base used for supporting the nozzle, a first adjusting assembly used for adjusting the angle of the nozzle in the X-axis direction and a second adjusting assembly used for adjusting the angle of the nozzle in the Y-axis direction. The nozzle is fixedly connected with the supporting seat, the supporting seat is fixedly connected with the first adjusting assembly, and the first adjusting assembly is fixedly connected with the second adjusting assembly. The first adjusting assembly and the second adjusting assembly are arranged to adjust the deflection angle of the nozzle in the X-axis direction and the Y-axis direction, the deflected nozzle is adjusted to the initial position, the nozzle can evenly spray feed liquid on tobacco leaves, and the process quality of cigarette cut tobacco making is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco mechanical equipment, and in particular relates to a nozzle adjusting device. Background Art

[0002] In the tobacco industry shred production line, sugar and spices need to be added to the tobacco leaves in proportion, and the liquid feed is sprayed evenly on the tobacco leaves at a certain angle through the nozzle to make them fully mixed, so that the finished tobacco meets the production standards of cigarettes. However, in the cigarette shred production line, some machines will vibrate themselves or replace the nozzles after long-term use, which will cause slight changes in the angle of the nozzles, resulting in a certain deviation in the nozzle spraying angle, causing the nozzle to spray too much liquid on some tobacco leaves and too little liquid on some tobacco leaves when spraying the liquid feed, resulting in uneven addition of tobacco leaves, fluctuations in outlet moisture, and other problems, which seriously affect the process quality. Utility Model Content

[0003] The purpose of the utility model is to provide a nozzle adjustment device, which is provided with a first adjustment component and a second adjustment component to adjust the deflection angle of the nozzle in the X-axis and Y-axis directions, so as to adjust the deflected nozzle to the initial position, so that the nozzle can evenly spray the liquid on the tobacco leaves, thereby ensuring the process quality of cigarette shredding.

[0004] The technical solution adopted by the utility model to solve its technical problem is to propose a nozzle adjustment device, including a nozzle, a support seat for supporting the nozzle, a first adjustment component for adjusting the angle of the nozzle in the X-axis direction, and a second adjustment component for adjusting the angle of the nozzle in the Y-axis direction; the nozzle is fixedly connected to the support seat, the support seat is fixedly connected to the first adjustment component, and the first adjustment component is fixedly connected to the second adjustment component.

[0005] In an embodiment of the present application, the support seat includes a connecting plate and a supporting unit integrally connected to the connecting plate; the connecting plate is fixedly connected to the first adjusting assembly, and the supporting unit is used to support the nozzle.

[0006] In an embodiment of the present application, the support unit is a first support plate and a second support plate arranged on both sides of the connecting plate; a first mounting hole is provided on the first support plate, and a groove is provided on the second support plate. After one end of the nozzle passes through the first mounting hole, it is engaged with the groove. The support seat also includes locking nuts arranged on both sides of the first support plate, and the locking nuts are threadedly connected to the nozzle.

[0007] In an embodiment of the present application, the first adjustment component includes a first rocker arm and a first connecting seat. The first connecting seat is provided with a first through hole. One end of the first rocker arm passes through the first through hole and is fixedly connected to the connecting plate. The first rocker arm swings to drive the support seat and the nozzle to rotate, so as to adjust the nozzle angle in the X-axis direction.

[0008] In an embodiment of the present application, a first slot is provided at one end of the first rocker arm close to the connecting plate, a second mounting hole is provided on the connecting plate, a first locking block is provided in the second mounting hole, one end of the first rocker arm is plugged into the second mounting hole, and the first locking block is embedded in the first slot, and the first adjustment component also includes a locking screw provided at one end of the first rocker arm, and the locking screw is threadedly connected to the first rocker arm.

[0009] In an embodiment of the present application, a third mounting hole is provided on the first connecting seat, and the third mounting hole and the first through hole are arranged vertically along the first connecting seat. The second adjusting component includes a second rocker arm and a second connecting seat. The second connecting seat is provided with a second through hole. One end of the second rocker arm passes through the second through hole and is plugged into the third mounting hole. The second rocker arm swings to drive the first connecting seat, the supporting seat and the nozzle to rotate, so as to adjust the nozzle angle in the Y-axis direction.

[0010] In an embodiment of the present application, a second locking block is provided in the third mounting hole, and a second slot is provided at one end of the second rocker arm close to the third mounting hole. The second rocker arm is plugged into the third mounting hole, and the second locking block is embedded in the second slot.

[0011] In an embodiment of the present application, a limiting groove is provided at one end of the second rocker arm close to the third mounting hole, and the second adjustment assembly also includes a rotating ring and a second limiting nut, the rotating ring is embedded in the limiting groove, the second limiting nut is fixedly connected to the second rocker arm, and the second limiting nut abuts against the second connecting seat.

[0012] In an embodiment of the present application, a first fixing hole is provided on the first connecting seat, and the first adjusting assembly also includes a first fixing bolt, and the end of the first fixing bolt passes through the first fixing hole and abuts against the first swing arm, and a second fixing hole is provided on the second connecting seat, and the second adjusting assembly also includes a second fixing bolt, and the end of the second fixing bolt passes through the second fixing hole and abuts against the second swing arm.

[0013] In an embodiment of the present application, a first dial is fixedly connected to the side of the first connecting seat, and a second dial is fixedly connected to the side of the second connecting seat. The first dial and the second dial are provided with scales. The other end of the first rocker arm abuts against the side of the first dial with the scales, and the other end of the second rocker arm abuts against the side of the second dial with the scales.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model proposes a nozzle adjustment device, which is provided with a first adjustment component and a second adjustment component to adjust the deflection angle of the nozzle in the X-axis and Y-axis directions, so as to adjust the deflected nozzle to the initial position, so that the nozzle can evenly spray the liquid on the tobacco leaves, thereby ensuring the process quality of cigarette shreds;

[0016] 2. The utility model proposes a nozzle adjustment device, in which a first scale plate is arranged on the side of the first connecting seat, a second scale plate is arranged on the second connecting seat, the other end of the first swing arm abuts against the side of the first scale plate with scales, and the other end of the second swing arm abuts against the side of the second scale plate with scales, so that the deflection angle of the nozzle in the X-axis and Y-axis directions can be accurately adjusted, and the angle of the nozzle can also be adjusted by recording the initial scale, thereby shortening the adjustment time of the nozzle;

[0017] 3. The utility model proposes a nozzle adjustment device, which is provided with a first fixing bolt and a second fixing bolt to lock the positions of the first swing arm and the second swing arm, thereby ensuring that the nozzle can be stably fixed in the optimal spraying position, so that the nozzle can evenly spray the liquid on the tobacco leaves, thereby ensuring the process quality of cigarette shredding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the utility model, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a nozzle adjustment device according to an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of nozzle installation of a nozzle adjustment device according to an embodiment of the utility model;

[0021] Figure 3 A diagram of a support seat of a nozzle adjustment device according to an embodiment of the utility model;

[0022] Figure 4 For the utility model embodiment Figure 3 Bottom view of the connecting plate;

[0023] Figure 5 This is a schematic diagram of a first adjustment component of a nozzle adjustment device according to an embodiment of the utility model;

[0024] Figure 6 For the utility model embodiment Figure 5 A left side view of the first adjustment component;

[0025] Figure 7 A schematic diagram of a first swing arm of a nozzle adjustment device according to an embodiment of the utility model;

[0026] Figure 8 This is a schematic diagram of a first connecting seat of a nozzle adjustment device according to an embodiment of the utility model;

[0027] Fig. 9 This is a schematic diagram of a second adjustment component of a nozzle adjustment device according to an embodiment of the utility model;

[0028] Fig.10 For the utility model embodiment Fig. 9 Left rear view;

[0029] Fig.11 A schematic diagram of a second swing arm of a nozzle adjustment device according to an embodiment of the utility model;

[0030] Fig.12 This is a schematic diagram of a second connecting seat of a nozzle adjustment device according to an embodiment of the utility model.

[0031] In the figure: 1, support seat; 11, connecting plate; 111, second mounting hole; 112, first locking block; 12, support unit; 121, first support plate; 122, second support plate; 123, first mounting hole; 124, groove; 13, locking nut; 2, first adjustment component; 21, first swing rod; 211, first slot; 22, first connecting seat; 221, first through hole; 222, third mounting hole; 223, second locking nut Stop block; 224, first fixing hole; 23, locking screw; 24, first fixing bolt; 25, first limiting nut; 3, second adjusting assembly; 31, second rocker arm; 311, second slot; 312, limiting slot; 32, second connecting seat; 321, second through hole; 322, second fixing hole; 33, rotating circle; 34, second fixing bolt; 35, second limiting nut; 4, first scale plate; 5, second scale plate; 6, nozzle. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the embodiments of the utility model and the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work. In addition, the design orientation only represents the relative position relationship between the components, not the absolute position relationship.

[0033] The utility model embodiment provides a nozzle adjustment device, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , mainly includes a support seat 1, a first adjustment component 2, a second adjustment component 3, a first dial 4, a second dial 5, and a nozzle 6.

[0034] See also Figures 1 to 12 In an embodiment of the present application, a nozzle for spraying liquid toward tobacco leaves is fixed on a support seat 1, and the support seat 1 is fixedly connected to a first adjustment component 2, and the first adjustment component 2 adjusts the deflection angle of the support seat 1, thereby indirectly adjusting the deflection angle of the nozzle in the X-axis direction. The second adjustment component 3 is fixedly connected to the first adjustment component 2, and the second adjustment component 3 adjusts the deflection angle of the first adjustment component 2 and the support seat 1, thereby indirectly adjusting the deflection angle of the nozzle on the Y-axis. The first adjustment component 2 and the second adjustment component 3 are set to adjust the deflection angle of the nozzle in the X-axis and Y-axis directions to adjust the deflected nozzle to the initial position, so that the nozzle can spray the liquid evenly on the tobacco leaves, thereby ensuring the process quality of cigarette shredding.

[0035] It should be noted that Figure 6 From the perspective of Figure 6 The front-to-back direction is the X-axis direction. Fig.10 From the perspective of Fig.10 The up and down direction in is the Y-axis direction.

[0036] See also Figure 2 , Figure 3 , Figure 4In the embodiment of the present application, the support seat 1 includes a connecting plate 11 and a support unit 12 composed of a first support plate 121 and a second support plate 122. The support unit 12 is used to support the nozzle, and the connecting plate 11 is connected to the first adjustment component 2. The first support plate 121 and the second support plate 122 are connected to the connecting plate 11 in an integral manner, and the first support plate 121 and the second support plate 122 are arranged on both sides of the connecting plate 11. The first support plate 121 is provided with a first mounting hole 123, and the second support plate 122 is provided with a groove 124. After one end of the nozzle passes through the first mounting hole 123, it is embedded in the groove 124, so that the first support plate 121 and the second support plate 122 jointly support the nozzle. Locking nuts 13 are also provided on both sides of the support plates. The locking nuts 13 are screwed to the nozzle to fix the position where the nozzle intersects with the first support plate 121 to prevent the nozzle from slipping off the support seat 1.

[0037] See also Figure 5 In an embodiment of the present application, the first adjustment component 2 includes a first rocker arm 21 and a first connecting seat 22. A first through hole 221 is provided on the first connecting seat 22. One end of the first rocker arm 21 passes through the first through hole 221 and is connected to the connecting plate 11. The first rocker arm 21 can rotate in the first through hole 221, thereby driving the connecting plate 11, the supporting unit 12 and the nozzle to rotate, thereby achieving the effect of adjusting the deflection angle of the nozzle in the X-axis direction, ensuring that the nozzle can evenly spray the liquid on the tobacco leaves in the X-axis direction.

[0038] For details, see Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8In the embodiment of the present application, a first card slot 211 is provided at one end of the first swing rod 21 close to the connecting plate 11, a second mounting hole 111 is provided on the connecting plate 11, the second mounting hole 111 is a through hole, a first locking block 112 integrally connected to the connecting plate 11 is provided in the second mounting hole 111, one end of the first swing rod 21 is plugged into the second mounting hole 111, the first locking block 112 is engaged with the first card slot 211, a locking threaded hole is further provided at the end of the first swing rod 21, a gasket and a locking screw 23 are provided on the side of the second mounting hole 111 away from the first swing rod 21, and the cross-section of the locking screw 23 is The size and the cross-sectional size of the gasket are larger than the size of the second mounting hole 111. The locking screw 23 is screwed with the locking threaded hole to fix the first swing rod 21 with the connecting plate 11. A first limiting nut 25 is also provided on the first swing rod 21. The first limiting nut 25 is screwed with the first swing rod 21, and the first limiting nut 25 abuts against the surface of the first connecting seat 22. The position of the first swing rod 21 is fixed by setting the first limiting nut 25 and the locking screw 23, so as to avoid the first swing rod 21 from destroying the connection between the first swing rod 21 and the connecting plate 11 due to misalignment, thereby improving the stability of the entire device. When the first swing rod 21 rotates, since the first locking block 112 is embedded in the first card slot 211, the first swing rod 21 rotates, pushing the position of the first locking block 112 to change, so that the angle of the entire connecting plate 11, the support unit 12 connected to the connecting plate 11, and the nozzle arranged on the support unit 12 in the X-axis direction changes, ensuring that the nozzle can evenly spray the liquid on the tobacco leaves in the X-axis direction. The connection between the first rocker arm 21 and the connecting plate 11 is strengthened by the locking screw 23, and the first rocker arm 21 and the connecting plate 11 are detachably connected, which is convenient for cleaning and replacement of the entire nozzle adjustment device. When a failure occurs in the nozzle adjustment device, only some parts need to be replaced and the device can be reused, thereby improving the utilization rate of each part.

[0039] Preferably, in the embodiment of the present application, a first fixing hole 224 is provided on the first connection seat 22, and the first fixing hole 224 and the first through hole 221 are arranged vertically along the first connection seat 22, and the first fixing hole 224 is a threaded hole. After the end of the first fixing bolt 24 passes through the first fixing hole 224, it abuts against the surface of the first swing rod 21, and the middle part of the first fixing bolt 24 is screwed with the first fixing hole 224. The first fixing bolt 24 abuts against the first swing rod 21, and the rotation of the first swing rod 21 needs to overcome the static friction between the first fixing bolt 24 and the first swing rod 21, so that the first swing rod 21 remains stationary without human influence, and the first swing rod 21 is locked, thereby locking the position of the nozzle, ensuring that the nozzle can be stably fixed at the optimal spraying position, and ensuring that the nozzle can spray the liquid on the tobacco leaves evenly in the X-axis direction.

[0040] See also Figure 1 , Figure 5 , Figure 8In the embodiment of the present application, a first dial 4 is provided on the side of the first connecting seat 22, and the first dial 4 is connected to the first connecting seat 22 in a screwed manner. A scale is provided on the first dial 4, and the scale is 180° with an accuracy of 1°. The other end of the first swing arm 21 abuts against the side of the first dial 4 where the scale is provided. The operator can accurately adjust the deflection angle of the nozzle in the X-axis direction through the first dial 4, or record the initial indication angle of the first swing arm 21. When the nozzle position is deflected, the first swing arm 21 is rotated to the position of the initial indication angle, thereby shortening the adjustment time of the nozzle.

[0041] See also Figure 8 , Fig. 9 In the embodiment of the present application, a third mounting hole 222 is provided on the first connecting seat 22, and the third mounting hole 222 and the first through hole 221 are arranged vertically along the first connecting seat 22. The second adjusting component 3 includes a second swing rod 31 and a second connecting seat 32. A second through hole 321 is provided on the second connecting seat 32. After one end of the second swing rod 31 passes through the second through hole 321, it is plugged into the third mounting hole 222. The second swing rod 31 can rotate in the second through hole 321, thereby driving the first adjusting component 2, the supporting seat 1 and the nozzle to rotate, thereby achieving the effect of adjusting the deflection angle of the nozzle in the Y-axis direction, ensuring that the nozzle can evenly spray the liquid on the tobacco leaves in the Y-axis direction.

[0042] For details, see Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12When the locking nut 35 is engaged with the locking nut 35, the locking nut 35 is engaged with the locking nut 35. The locking nut 35 is engaged with the locking nut 35 and the locking nut 35 is engaged with the locking nut 35. When the locking nut 35 is engaged with the locking nut 35, the locking nut 35 is engaged with the locking nut 35. When the locking nut 35 is engaged with the locking nut 35, the locking nut 35 is engaged with the locking nut 35. When the locking nut 35 is engaged with the locking nut 35, the locking nut 35 is engaged with the locking nut 35. When the second rocker arm 31 rotates, since the second locking block 223 is embedded in the second slot 311, the second rocker arm 31 rotates, pushing the position of the second locking block 223 to change, so that the angles of the entire first connecting seat 22, the support seat 1 connected to the first connecting seat 22, and the nozzle arranged on the support seat 1 in the Y-axis direction change, ensuring that the nozzle can evenly spray the liquid on the tobacco leaves in the Y-axis direction.

[0043] Preferably, in the embodiment of the present application, a second fixing hole 322 is provided on the second connection seat 32, and the second fixing hole 322 and the second through hole 321 are arranged vertically along the second connection seat 32, and the second fixing hole 322 is a threaded hole. After the end of the second fixing bolt 34 passes through the second fixing hole 322, it abuts against the surface of the second swing rod 31, and the middle part of the second fixing bolt 34 is screwed with the second fixing hole 322. The second fixing bolt 34 abuts against the second swing rod 31, and the rotation of the second swing rod 31 needs to overcome the static friction between the second fixing bolt 34 and the second swing rod 31, so that the second swing rod 31 remains stationary without human influence, and the second swing rod 31 is locked, thereby locking the position of the nozzle, ensuring that the nozzle can be stably fixed at the optimal spraying position, and ensuring that the nozzle can spray the liquid evenly on the tobacco leaves in the Y-axis direction.

[0044] See also Figure 1 , Fig.12 In the embodiment of the present application, a second dial 5 is provided on the side of the second connecting seat 32, and the second dial 5 is connected to the second connecting seat 32 in a screw connection manner. A scale is provided on the second dial 5, and the scale is 180° with an accuracy of 1°. The other end of the second swing arm 31 abuts against the side of the second dial 5 where the scale is provided. The operator can accurately adjust the deflection angle of the nozzle in the Y-axis direction through the second dial 5, or by recording the initial indication angle of the second swing arm 31, when the nozzle position is deflected, the second swing arm 31 is rotated to the position of the initial indication angle, thereby shortening the adjustment time of the nozzle.

[0045] Specifically, the working principle of the nozzle adjustment device is as follows: when the nozzle is installed for the first time, the indication of the first swing arm 21 on the first scale dial 4 and the indication of the second swing arm 31 on the second scale dial 5 are recorded. When the indications of the first swing arm 21 and the second swing arm 31 are observed to change, the first fixing bolt 24 and the second fixing bolt 34 are loosened, and the position of the second swing arm 31 is first turned back to the initial scale position, and the second swing arm 31 rotates, driving the first adjustment component 2, the support seat 1 and the nozzle to rotate, thereby adjusting the deflection angle of the nozzle in the Y-axis direction, and then the position of the first swing arm 21 is turned back to the initial scale position, and the first swing arm 21 rotates, driving the support seat 1 and the nozzle to rotate, thereby adjusting the deflection angle of the nozzle in the X-axis direction, and then the first fixing bolt 24 and the second fixing bolt 34 are tightened to lock the positions of the first swing arm 21 and the second swing arm 31.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0047] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementation methods, and the specific embodiments of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A nozzle adjustment device, characterized in that: The invention comprises a nozzle, a support base (1) for supporting the nozzle, a first adjustment component (2) for adjusting the angle of the nozzle in the X-axis direction, and a second adjustment component (3) for adjusting the angle of the nozzle in the Y-axis direction; the nozzle is fixedly connected to the support base (1), the support base (1) is fixedly connected to the first adjustment component (2), the first adjustment component (2) is fixedly connected to the second adjustment component (3), and the support base (1) comprises a connecting plate (11) and a supporting unit (12) integrally connected to the connecting plate (11). The connecting plate (11) is fixedly connected to the first adjusting component (2); the supporting unit (12) is used to support the nozzle; the first adjusting component (2) comprises a first swing arm (21) and a first connecting seat (22); a first through hole (221) is provided on the first connecting seat (22); one end of the first swing arm (21) passes through the first through hole (221) and is fixedly connected to the connecting plate (11); the first swing arm (21) swings to drive the supporting seat (1) and the nozzle to rotate, so as to adjust the angle of the nozzle in the X-axis direction.

2. A nozzle adjustment device according to claim 1, characterized in that: The support unit (12) comprises a first support plate (121) and a second support plate (122) arranged on both sides of the connecting plate (11); the first support plate (121) is provided with a first mounting hole (123), the second support plate (122) is provided with a groove (124), one end of the nozzle passes through the first mounting hole (123) and is engaged with the groove (124), and the support seat (1) further comprises locking nuts (13) arranged on both sides of the first support plate (121), the locking nuts (13) being screwed to the nozzle.

3. A nozzle adjustment device according to claim 1, characterized in that: A first slot (211) is provided at one end of the first swing rod (21) close to the connecting plate (11); a second mounting hole (111) is provided on the connecting plate (11); a first locking block (112) is provided in the second mounting hole (111); one end of the first swing rod (21) is plugged into the second mounting hole (111); the first locking block (112) is embedded in the first slot (211); the first adjustment assembly (2) further comprises a locking screw (23) provided at one end of the first swing rod (21); the locking screw (23) is threadedly connected to the first swing rod (21).

4. A nozzle adjustment device according to claim 1, characterized in that: The first connecting seat (22) is provided with a third mounting hole (222), and the third mounting hole (222) and the first through hole (221) are arranged vertically along the first connecting seat (22). The second adjustment component (3) comprises a second swing rod (31) and a second connecting seat (32). The second connecting seat (32) is provided with a second through hole (321). One end of the second swing rod (31) passes through the second through hole (321) and is plugged into the third mounting hole (222). The second swing rod (31) swings to drive the first connecting seat (22), the support seat (1) and the nozzle to rotate, so as to adjust the angle of the nozzle in the Y-axis direction.

5. A nozzle adjustment device according to claim 4, characterized in that: A second locking block (223) is provided in the third mounting hole (222), a second slot (311) is provided at one end of the second swing rod (31) close to the third mounting hole (222), the second swing rod (31) is plugged into the third mounting hole (222), and the second locking block (223) is embedded in the second slot (311).

6. A nozzle adjustment device according to claim 5, characterized in that: A limiting groove (312) is provided at one end of the second swing rod (31) close to the third mounting hole (222). The second adjustment assembly (3) further comprises a rotating circle (33) and a second limiting nut (35). The rotating circle (33) is embedded in the limiting groove (312). The second limiting nut (35) is fixedly connected to the second swing rod (31), and the second limiting nut (35) abuts against the second connecting seat (32).

7. A nozzle adjustment device according to claim 6, characterized in that: The first connecting seat (22) is provided with a first fixing hole (224), the first adjusting assembly (2) further comprises a first fixing bolt (24), the end of the first fixing bolt (24) passes through the first fixing hole (224) and abuts against the first swing rod (21), the second connecting seat (32) is provided with a second fixing hole (322), the second adjusting assembly (3) further comprises a second fixing bolt (34), the end of the second fixing bolt (34) passes through the second fixing hole (322) and abuts against the second swing rod (31).

8. A nozzle adjustment device according to claim 7, characterized in that: A first scale plate (4) is fixedly connected to the side of the first connection seat (22), and a second scale plate (5) is fixedly connected to the side of the second connection seat (32). The first scale plate (4) and the second scale plate (5) are provided with scales. The other end of the first swing rod (21) abuts against the side of the first scale plate (4) provided with the scales, and the other end of the second swing rod (31) abuts against the side of the second scale plate (5) provided with the scales.

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