Multi-degree-of-freedom supporting device for feed liquid conveying hose of cigarette charging machine

Abstract

The invention discloses a multi-degree-of-freedom supporting device for a feed liquid conveying hose of a cigarette charging machine. The multi-degree-of-freedom supporting device comprises a supporting seat, and a rotary hollow support is rotationally mounted on the supporting seat; the mounting sleeve of the rotary hollow bracket is rotationally mounted on the supporting seat and can realize circumferential locking; the telescopic outer sleeve sleeves the rectangular inner sleeve in a sliding manner and can be locked; the supporting and adjusting assembly comprises an adjusting pin shaft and an arc-shaped supporting block, and the adjusting pin shaft can vertically slide along the guide channel and can be locked; a square connector is arranged at the top end of the adjusting pin shaft, an arc-shaped limiting end cover is arranged at the top end of the square connector and can slide back and forth in an arc-shaped limiting groove of the arc-shaped supporting block, a sliding groove is formed in the middle of the lower-layer arc-shaped plate, and the square connector can be locked in the sliding groove. The multi-degree-of-freedom adjustable supporting device has the advantages that multi-degree-of-freedom flexible adjustment is achieved, operation is convenient and fast, and long-term stability of the supporting posture can be guaranteed through a reliable locking mechanism.

Description

Technical Field

[0001] This invention relates to the field of tobacco processing equipment technology, and in particular to a multi-degree-of-freedom support device for a liquid conveying hose of a tobacco feeder. Background Technology

[0002] In the tobacco processing industry, the feeding process is a crucial step in ensuring the sensory quality of the product. Sugars, flavorings, and other liquids are dispensed from a tank through a liquid delivery hose (usually a metal hose) and sprayed onto the tobacco shreds in a metered and uniform manner. Currently, the liquid delivery hoses in workshops are mostly supported by simple brackets or straps, which suffer from limited adjustment freedom, cumbersome operation, poor adaptability, and insufficient safety and stability.

[0003] More importantly, existing support devices for the feed hoses are insufficient to ensure that the hoses remain in the ideal straight position required by the process. Bending or sagging of the hoses can cause turbulence and air bubbles to form during the feed process. These air bubbles enter the feed pump with the feed, causing instantaneous fluctuations in the feed flow rate and inaccurate metering, ultimately affecting the uniformity of the product's aroma and resulting in quality defects. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder. It not only has the advantages of flexible adjustment of multiple degrees of freedom and convenient operation, but also ensures the long-term stability of the support posture through a reliable locking mechanism, thereby ensuring the straightness of the liquid conveying hose.

[0005] This invention is achieved through the following technical solution: A multi-degree-of-freedom support device for a tobacco feeder liquid conveying hose includes a support base, a rotating hollow bracket rotatably mounted on the support base, a telescopic outer tube movably mounted on the rotating hollow bracket, and a support adjustment component provided on the telescopic outer tube. The rotating hollow support includes a fixedly connected mounting sleeve and a rectangular inner sleeve. The rectangular inner sleeve extends outward along the radial direction of the mounting sleeve. The mounting sleeve is rotatably mounted on the vertical mounting shaft of the support base, and the circumferential position of the mounting sleeve is locked by the first locking mechanism. The telescopic outer sleeve is slidably fitted onto the outside of the rectangular inner sleeve. The telescopic outer sleeve can slide back and forth along the length direction of the rectangular inner sleeve, and the second locking mechanism locks the telescopic outer sleeve relative to the length direction of the rectangular inner sleeve. The support and adjustment assembly includes an adjusting pin and an arc-shaped support block. A vertically penetrating guide channel is provided on the telescopic outer sleeve. The adjusting pin slides through the guide channel and can slide vertically along it. A third locking mechanism locks the adjusting pin relative to the vertical position of the guide channel. A square connector is located at the top of the adjusting pin, and an arc-shaped limiting end cap is located at the top of the square connector. The width of the arc-shaped limiting end cap is greater than the side length of the square connector. An arc-shaped limiting groove with one open end is opened in the middle section of the arc-shaped support block. The groove divides the arc-shaped support block into upper and lower arc-shaped plates. The upper arc-shaped plate has an arc-shaped support surface on its upper surface to support the liquid conveying hose. The arc-shaped limiting end cap is located in the arc-shaped limiting groove of the arc-shaped support block and can slide back and forth in the arc-shaped limiting groove. The arc-shaped limiting end cap supports the lower surface of the upper arc-shaped plate. The lower arc-shaped plate has a sliding groove in the middle of the open end of the arc-shaped limiting groove for the square connector to slide back and forth. The fourth locking mechanism locks the square connector in the position of the sliding groove.

[0006] As a preferred embodiment of the above-mentioned multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder, the first locking mechanism includes a first spring plunger and a plurality of first positioning holes. The first spring plunger is disposed at the top of the mounting sleeve. The support base includes upper and lower ear plates arranged opposite each other. Both upper and lower ear plates are L-shaped plates. The mounting sleeve is located between the horizontal section of the upper ear plate and the horizontal section of the lower ear plate. The plurality of first positioning holes are arranged in a circle on the bottom surface of the horizontal section of the upper ear plate and are evenly distributed along the circumference. As the mounting sleeve rotates, the first spring plunger on the mounting sleeve is elastically engaged in different first positioning holes on the bottom surface of the horizontal section of the upper ear plate in sequence, thereby realizing the adjustment and locking of the circumferential position of the mounting sleeve.

[0007] As a preferred embodiment of the above-mentioned multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder, the second locking mechanism includes a second spring plunger and multiple second positioning holes. The multiple second positioning holes are arranged on the top surface of the rectangular inner sleeve and are evenly distributed along the length direction. The top end of the telescopic outer sleeve is provided with a nut. The second spring plunger is threadedly connected to the threaded hole of the nut. By elastically engaging the second spring plunger into different second positioning holes on the rectangular inner sleeve, the position of the telescopic outer sleeve relative to the length direction of the rectangular inner sleeve can be adjusted and locked.

[0008] As a preferred embodiment of the above-mentioned multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder, the third locking mechanism includes a quick-locking arm. One end of the quick-locking arm is hinged to the top of the telescopic outer sleeve via a vertical hinge shaft. The other end of the quick-locking arm is provided with a U-shaped bayonet. Multiple annular slots are provided along the axial direction on the adjusting pin. By rotating the quick-locking arm, the U-shaped bayonet is driven to engage or disengage from the annular slots of the adjusting pin. By engaging different annular slots on the adjusting pin, the vertical position of the adjusting pin relative to the guide channel is adjusted and locked.

[0009] As a preferred embodiment of the above-mentioned multi-degree-of-freedom support device for the liquid conveying hose of the tobacco feeder, a third spring plunger is provided on the inner wall of the U-shaped bayonet of the quick-locking arm. The third spring plunger is elastically engaged into the annular groove of the adjusting pin, thereby locking the U-shaped bayonet in the annular groove of the adjusting pin.

[0010] As a preferred embodiment of the multi-degree-of-freedom support device for the liquid conveying hose of the above-mentioned tobacco feeder, the lower end of the adjusting pin extends downward below the telescopic outer sleeve and is fitted with an open retaining ring.

[0011] As a preferred embodiment of the above-mentioned multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder, the fourth locking mechanism includes a fourth spring plunger and multiple fourth positioning holes. The fourth spring plunger is disposed on one side of the square connector, and the multiple fourth positioning holes are disposed on one side wall of the sliding groove of the lower arc plate and are evenly distributed along the arc extension direction of the sliding groove. By elastically engaging the fourth spring plunger into different fourth positioning holes on the side wall of the sliding groove of the lower arc plate, the position of the square connector relative to the sliding groove is adjusted and locked.

[0012] As a preferred embodiment of the multi-degree-of-freedom support device for the liquid conveying hose of the above-mentioned tobacco feeder, a layer of rubber is attached to the arc-shaped support surface of the upper arc plate.

[0013] As a preferred embodiment of the above-mentioned multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder, the horizontal section of the lower ear plate has a stepped hole that is larger at the top and smaller at the bottom, and a washer is provided on the stepped surface of the stepped hole, with the bottom end of the mounting sleeve supported on the washer.

[0014] As a preferred embodiment of the above-mentioned multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder, the vertical mounting shaft is a vertical screw. The horizontal section of the upper ear plate has an upper mounting hole coaxial with the stepped hole. The vertical screw passes through the upper mounting hole, the mounting sleeve, and the stepped hole from top to bottom in sequence, and then the locking nut is screwed on to realize the installation of the vertical screw and the two ear plates.

[0015] The present invention has the following advantages over the prior art: 1. Enables convenient adjustment of the arc-shaped support block with multiple degrees of freedom: It enables independent or linked adjustment of four degrees of freedom of the arc-shaped support block: circumferential position, radial position, height position and tilt angle. The operation is simple and intuitive, and it can quickly adapt to various complex installation spaces and material conveying hose routing requirements.

[0016] 2. Safe and reliable locking with strong anti-interference: The first, second, and fourth locking mechanisms, through the cooperation of spring plungers and multiple positioning holes, ensure reliable locking while maintaining flexible adjustment; the third locking mechanism uses a rotating quick-locking wall U-shaped bayonet to engage with annular grooves of different heights on the adjusting pin, achieving reliable locking through mechanical self-locking; the four locking mechanisms ensure that each degree of freedom can be firmly locked after adjustment, effectively resisting minor impacts and vibrations during equipment operation and maintaining long-term stability of the supported posture.

[0017] 3. Ensure process quality: By providing a stable and precisely adjustable support device, the liquid delivery hose is forced to be in the optimal straight delivery state, which fundamentally avoids the problems of liquid turbulence, bubble precipitation and flow fluctuation caused by the bends and twists of the pipeline, thereby ensuring the accuracy and uniformity of the feeding amount and directly improving the intrinsic quality of tobacco products.

[0018] 4. Robust structure, safe and durable: It adopts a compact structural layout, which ensures stable support while realizing flexible adjustment with multiple degrees of freedom. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the arc-shaped support block of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the first locking mechanism of the present invention.

[0022] Figure 4 This is a bottom view of the upper ear plate of the present invention.

[0023] Figure 5 This is a three-dimensional exploded view of the lower ear plate and washer of the present invention.

[0024] The following are the labels in the diagram: 1 Telescopic outer sleeve; 2 Mounting sleeve; 3 Rectangular inner sleeve; 4 First spring plunger; 5 First positioning hole; 6 Upper ear plate; 7 Lower ear plate; 8 Stepped hole; 9 Washer; 10 Vertical screw; 11 Upper mounting hole; 12 Locking nut; 13 Second spring plunger; 14 Second positioning hole; 15 Nut; 16 Adjusting pin; 17 Arc-shaped support block; 18 Square connector; 19 Arc-shaped limiting end cap; 20 Arc-shaped limiting groove; 21 Arc-shaped support surface; 22 Rubber layer; 23 Sliding groove; 24 Quick lock arm; 25 U-shaped bayonet; 26 Annular groove; 27 Opening retaining ring; 28 Third spring plunger; 29 Fourth spring plunger. Detailed Implementation

[0025] The embodiments of the present invention are described in detail below. These embodiments are implemented based on the technical solution of the present invention, and provide detailed implementation methods and specific operation processes. However, the scope of protection of the present invention is not limited to the following embodiments.

[0026] See Figures 1 to 5 This embodiment discloses a multi-degree-of-freedom support device for a tobacco feeder liquid conveying hose, including a support base, a rotating hollow bracket rotatably mounted on the support base, a telescopic outer tube 1 movably mounted on the rotating hollow bracket, and a support adjustment component provided on the telescopic outer tube 1.

[0027] The rotating hollow support includes a fixedly connected mounting sleeve 2 and a rectangular inner sleeve 3. The mounting sleeve 2 and the rectangular inner sleeve 3 can be made of stainless steel and are fixed together by welding. The rectangular inner sleeve 3 extends outward along the radial direction of the mounting sleeve 2. The mounting sleeve 2 is rotatably fitted onto the vertical mounting shaft of the support base, and the circumferential position of the mounting sleeve 2 is locked by a first locking mechanism.

[0028] The first locking mechanism includes a first spring plunger 4 and multiple first positioning holes 5. The first spring plunger 4 is located at the top of the mounting sleeve 2. The support base includes an upper ear plate 6 and a lower ear plate 7 arranged opposite each other. Both the upper and lower ear plates are L-shaped plates. The vertical sections of the upper and lower ear plates can be fixedly installed on the vertical mounting plate of the auxiliary frame of the blade feeder by means of screw connection, so as to realize the fixed installation of the entire support device with the auxiliary frame of the blade feeder. The mounting sleeve 2 is located between the horizontal section of the upper ear plate 6 and the horizontal section of the lower ear plate 7. The horizontal section of the lower ear plate 7 has a stepped hole 8 with a larger upper section and a smaller lower section. A washer 9 is provided on the stepped surface of the stepped hole 8. The washer 9 is a brass washer. The bottom end of the mounting sleeve 2 is supported on the washer 9. The vertical mounting shaft is a vertical screw 10. The horizontal section of the upper ear plate 6 has an upper mounting hole 11 coaxial with the stepped hole 8. The vertical screw 10 passes through the upper mounting hole 11, the mounting sleeve 2, and the stepped hole 8 from top to bottom, and then the locking nut 12 is screwed on to install the vertical screw 10 to the two ear plates. Multiple first positioning holes 5 are arranged in a circle on the bottom surface of the horizontal section of the upper ear plate 6 and are evenly distributed circumferentially. As the mounting sleeve 2 rotates, the first spring plunger 4 on the mounting sleeve 2 elastically engages with different first positioning holes 5 on the bottom surface of the horizontal section of the upper ear plate 6 in sequence, thereby adjusting and locking the circumferential position of the mounting sleeve 2.

[0029] The telescopic outer sleeve 1 is slidably fitted onto the rectangular inner sleeve 3. The telescopic outer sleeve 1 can slide back and forth along the length direction of the rectangular inner sleeve 3, and the second locking mechanism locks the telescopic outer sleeve 1 relative to the length direction of the rectangular inner sleeve 3.

[0030] The second locking mechanism includes a second spring plunger 13 and multiple second positioning holes 14. The second spring plunger 13 can be a spring plunger with a pull ring. The multiple second positioning holes 14 are set on the top surface of the rectangular inner sleeve 3 and are evenly distributed along the length direction. A nut 15 is welded to the top of the telescopic outer sleeve 1. The second spring plunger 13 is threadedly connected to the threaded hole of the nut 15. The second spring plunger 13 is elastically inserted into different second positioning holes 14 on the rectangular inner sleeve 3 to realize the adjustment and locking of the position of the telescopic outer sleeve 1 relative to the length direction of the rectangular inner sleeve 3.

[0031] The support and adjustment assembly includes an adjusting pin 16 and an arc-shaped support block 17. A vertically penetrating guide channel is provided on the telescopic outer sleeve 1, and a longitudinally penetrating through groove is opened on the telescopic outer sleeve 1. A guide sleeve is welded onto the through groove, and the internal channel of the guide sleeve forms the guide channel. The adjusting pin 16 slides through the guide channel and can slide vertically along the guide channel. A third locking mechanism locks the adjusting pin 16 relative to the vertical position of the guide channel. The top of the adjusting pin 16 is provided with a square connector 18, and the top of the square connector 18 is provided with an arc-shaped limiting end cap 19. The width of the arc-shaped limiting end cap 19 is greater than the side length of the square connector 18. The arc-shaped support block 17 can be integrally bent from a stainless steel plate. The middle section of the arc-shaped support block 17 has an arc-shaped limiting groove 20 with one open end. The arc-shaped limiting groove 20 divides the arc-shaped support block 17 into upper and lower arc-shaped plates. The upper arc-shaped plate has an arc-shaped support surface 21 for supporting the liquid conveying hose. A rubber layer 22 with anti-slip texture is attached to the arc-shaped support surface 21 of the upper arc-shaped plate. The rubber layer 22 is bonded to the arc-shaped support surface 21 of the upper arc-shaped plate to play an anti-slip role. The arc-shaped limiting end cap 19 is located in the arc-shaped limiting groove 20 of the arc-shaped support block 17 and can slide back and forth in the arc-shaped limiting groove 20. The arc-shaped limiting end cap 19 supports the lower surface of the upper arc plate. The lower arc plate has a sliding groove 23 in the middle of the open end of the arc-shaped limiting groove 20 for the square joint 18 to slide back and forth. The fourth locking mechanism locks the square joint 18 in the position of the sliding groove 23.

[0032] The third locking mechanism includes a quick-lock arm 24. One end of the quick-lock arm 24 is hinged to the top of the telescopic outer sleeve 1 via a vertical hinge shaft. The other end of the quick-lock arm 24 is provided with a U-shaped bayonet 25. The adjusting pin 16 has multiple annular grooves 26 along its axial direction. The lower end of the adjusting pin 16 extends downward below the telescopic outer sleeve 1 and is fitted with an open retaining ring 27 to prevent the adjusting pin 16 from detaching upward from the guide sleeve. By rotating the quick-lock arm 24, the U-shaped bayonet 25 is driven to engage or disengage from the annular grooves 26 of the adjusting pin 16. By engaging different annular grooves 26 on the adjusting pin 16, the vertical position of the adjusting pin 16 relative to the guide channel can be adjusted and locked. To prevent the U-shaped latch 25 from accidentally dislodging from the annular groove 26 of the adjusting pin 16, this embodiment provides a third spring plunger 28 on the inner wall of the U-shaped latch 25 of the quick-lock arm 24 as an elastic stop. The third spring plunger 28 elastically engages with the annular groove 26 of the adjusting pin 16, thus locking the U-shaped latch 25 within the annular groove 26. When the quick-lock arm 24 is rotated so that its U-shaped latch 25 engages with the annular groove 26, the head of the third spring plunger 28 is first compressed and contracted by the inlet side wall of the annular groove 26, then moves to the position corresponding to the annular groove 26 and pops out, so that the head of the third spring plunger 28 is embedded in the internal space of the annular groove 26, forming mechanical interference with the groove wall of the annular groove 26 to prevent the quick-lock arm 24 from rotating to unlock.

[0033] The fourth locking mechanism includes a fourth spring plunger 29 and multiple fourth positioning holes. The fourth spring plunger 29 is located on one side of the square connector 18, and the multiple fourth positioning holes are located on one side wall of the sliding groove 23 of the lower arc plate and are evenly distributed along the arc extension direction of the sliding groove 23. The fourth spring plunger 29 is elastically engaged into different fourth positioning holes on the side wall of the sliding groove 23 of the lower arc plate to achieve adjustment and locking of the position of the square connector 18 relative to the sliding groove 23.

[0034] In use, the material conveying hose is supported by the arc-shaped support surface 21 on the top surface of the arc-shaped support block 17. The circumferential and radial positions of the arc-shaped support block 17 relative to the vertical mounting axis, as well as the height and tilt angle of the arc-shaped support block 17, can be adjusted according to specific needs. The specific adjustment process is as follows: When it is necessary to adjust the circumferential position of the arc-shaped support block 17 relative to the vertical mounting axis, rotate the rotating hollow bracket so that the mounting sleeve 2 of the rotating hollow bracket rotates around the vertical mounting axis. The first spring plunger 4 at the top of the mounting sleeve 2 jumps sequentially between multiple first positioning holes 5 on the bottom surface of the horizontal section of the upper ear plate 6 until it is adjusted to the target circumferential position. At this time, the first spring plunger 4 is embedded in the corresponding first positioning hole 5 to lock the circumferential position of the rotating hollow bracket.

[0035] When it is necessary to adjust the radial position of the arc-shaped support block 17 relative to the vertical mounting axis, pull up the pull ring of the second spring plunger 13 so that the head of the second spring plunger 13 disengages from the second positioning hole 14. At this time, the telescopic outer sleeve 1 and the rectangular inner sleeve 3 are unlocked. Push the telescopic outer sleeve 1 to the required length, and then release the pull ring of the second spring plunger 13 so that the head of the second spring plunger 13 is inserted into the corresponding second positioning hole 14, thereby locking the relative position of the telescopic outer sleeve 1 and the rectangular inner sleeve 3.

[0036] When the height of the section arc support block 17 needs to be adjusted, the adjusting pin 16 is pulled vertically to the target height, and then the quick-lock arm 24 is moved to rotate horizontally around the hinge axis, so that the U-shaped slot 25 of the quick-lock arm 24 is engaged in the annular slot 26 of the adjusting pin 16 at the corresponding height, thereby locking the height of the adjusting pin 16.

[0037] When it is necessary to adjust the tilt angle of the arc-shaped support block 17, gently push the arc-shaped support block 17 so that the sliding groove 23 of the arc-shaped support block 17 slides relative to the square connector 18. The head of the fourth spring plunger 29 on one side of the square connector 18 jumps between the fourth positioning holes on the side wall of the sliding groove 23 until the target tilt angle is adjusted. The fourth spring plunger 29 elastically engages with the corresponding fourth positioning hole on the side wall of the sliding groove 23, thereby locking the position of the square connector 18 relative to the sliding groove 23.

[0038] After adjustment, place the liquid delivery hose on the rubber layer 22 of the arc-shaped support surface 21 of the arc-shaped support block 17, thus completing the stable and effective support of the liquid delivery hose. The entire process requires no additional tools to achieve precise, stable, and straight support for the liquid delivery hose.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-degree-of-freedom support device for a liquid conveying hose in a tobacco feeder, characterized in that: Includes a support base, on which a rotating hollow bracket is rotatably mounted, and on which a telescopic outer tube (1) is movably mounted, and on which a support adjustment component is provided; The rotating hollow support includes a fixedly connected mounting sleeve (2) and a rectangular inner sleeve (3). The rectangular inner sleeve (3) extends outward along the radial direction of the mounting sleeve (2). The mounting sleeve (2) is rotatably mounted on the vertical mounting shaft of the support base, and the circumferential position of the mounting sleeve (2) is locked by the first locking mechanism. The telescopic outer sleeve (1) is slidably fitted outside the rectangular inner sleeve (3). The telescopic outer sleeve (1) can slide back and forth along the length direction of the rectangular inner sleeve (3), and the second locking mechanism is used to lock the position of the telescopic outer sleeve (1) relative to the length direction of the rectangular inner sleeve (3). The support and adjustment assembly includes an adjusting pin (16) and an arc-shaped support block (17). A vertically penetrating guide channel is provided on the telescopic outer sleeve (1). The adjusting pin (16) slides through the guide channel and can slide vertically along the guide channel. The adjusting pin (16) is locked relative to the vertical position of the guide channel by a third locking mechanism. A square connector (18) is provided at the top of the adjusting pin (16). An arc-shaped limiting end cap (19) is provided at the top of the square connector (18). The width of the arc-shaped limiting end cap (19) is greater than the side length of the square connector (18). An arc-shaped limiting groove (20) with an open end is opened in the middle section of the arc-shaped support block (17). The groove (20) divides the arc support block (17) into upper and lower arc plates. The upper arc plate forms an arc support surface (21) for supporting the liquid conveying hose. The arc limiting end cap (19) is located in the arc limiting groove (20) of the arc support block (17) and can slide back and forth in the arc limiting groove (20). The arc limiting end cap (19) supports the lower surface of the upper arc plate. The lower arc plate has a sliding groove (23) in the middle of the open end of the arc limiting groove (20) for the square connector (18) to slide back and forth. The fourth locking mechanism locks the position of the square connector (18) in the sliding groove (23).

2. The multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder as described in claim 1, characterized in that: The first locking mechanism includes a first spring plunger (4) and multiple first positioning holes (5). The first spring plunger (4) is set at the top of the mounting sleeve (2). The support base includes upper and lower ear plates arranged opposite each other. Both upper and lower ear plates are L-shaped plates. The mounting sleeve (2) is located between the horizontal section of the upper ear plate (6) and the horizontal section of the lower ear plate (7). Multiple first positioning holes (5) are arranged in a circle on the bottom surface of the horizontal section of the upper ear plate (6) and are evenly distributed along the circumference. As the mounting sleeve (2) rotates, the first spring plunger (4) on the mounting sleeve (2) is elastically inserted into different first positioning holes (5) on the bottom surface of the horizontal section of the upper ear plate (6) in sequence, thereby realizing the adjustment and locking of the circumferential position of the mounting sleeve (2).

3. The multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder as described in claim 1, characterized in that: The second locking mechanism includes a second spring plunger (13) and multiple second positioning holes (14). The multiple second positioning holes (14) are provided on the top surface of the rectangular inner sleeve (3) and are evenly distributed along the length direction. The top end of the telescopic outer sleeve (1) is provided with a nut (15). The second spring plunger (13) is threadedly connected to the threaded hole of the nut (15). The second spring plunger (13) is elastically inserted into different second positioning holes (14) on the rectangular inner sleeve (3) to realize the adjustment and locking of the position of the telescopic outer sleeve (1) relative to the rectangular inner sleeve (3) in the length direction.

4. The multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder as described in claim 1, characterized in that: The third locking mechanism includes a quick-lock arm (24). One end of the quick-lock arm (24) is hinged to the top of the telescopic outer sleeve (1) via a vertical hinge shaft. The other end of the quick-lock arm (24) is provided with a U-shaped slot (25). The adjusting pin (16) is provided with multiple annular slots (26) along the axial direction. By rotating the quick-lock arm (24), the U-shaped slot (25) is driven to engage or disengage from the annular slots (26) of the adjusting pin (16). By engaging the U-shaped slot (25) into different annular slots (26) on the adjusting pin (16), the vertical position of the adjusting pin (16) relative to the guide channel is adjusted and locked.

5. The multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder as described in claim 4, characterized in that: The inner wall of the U-shaped bayonet (25) of the quick-lock arm (24) is provided with a third spring plunger (28). The third spring plunger (28) is elastically inserted into the annular groove (26) of the adjusting pin (16) to achieve the locking of the U-shaped bayonet (25) in the annular groove (26) of the adjusting pin (16).

6. The multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder as described in claim 4, characterized in that: The lower end of the adjusting pin (16) extends downward below the telescopic outer sleeve (1) and is fitted with an open retaining ring (27).

7. The multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder as described in claim 1, characterized in that: The fourth locking mechanism includes a fourth spring plunger (29) and multiple fourth positioning holes. The fourth spring plunger (29) is located on one side of the square connector (18). The multiple fourth positioning holes are located on one side wall of the sliding groove (23) of the lower arc plate and are evenly distributed along the arc extension direction of the sliding groove (23). The fourth spring plunger (29) is elastically inserted into different fourth positioning holes on the side wall of the sliding groove (23) of the lower arc plate to realize the adjustment and locking of the position of the square connector (18) relative to the sliding groove (23).

8. The multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder as described in claim 1, characterized in that: A rubber layer (22) is attached to the arc-shaped support surface (21) of the upper arc plate.

9. The multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder as described in claim 2, characterized in that: The horizontal section of the lower ear plate (7) has a stepped hole (8) that is larger at the top and smaller at the bottom. A washer (9) is provided on the stepped surface of the stepped hole (8), and the bottom end of the mounting sleeve (2) is supported on the washer (9).

10. The multi-degree-of-freedom support device for the liquid conveying hose of a tobacco feeder as described in claim 9, characterized in that: The vertical mounting shaft is a vertical screw (10). The horizontal section of the upper ear plate (6) has an upper mounting hole (11) coaxial with the stepped hole (8). The vertical screw (10) passes through the upper mounting hole (11), the mounting sleeve (2), and the stepped hole (8) from top to bottom, and then the locking nut (12) is screwed on to realize the installation of the vertical screw (10) and the two ear plates.

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