O-shaped dye vat nozzle capable of adjusting flow velocity

Abstract

The utility model relates to an O-shaped dye vat nozzle with adjustable flow velocity, which comprises a body, a movable pipe and a telescopic driving device, the movable pipe is coaxial with the body and comprises a cylindrical part and an outer conical part positioned at the front part of the cylindrical part, the outer wall of the cylindrical part is connected with the inner wall of a guide pipe through a sealing piece, and the outer conical part is positioned at the front part of the guide pipe. A cloth penetrating channel is formed between the inner wall of the inner taper pipe and the inner wall of the cylindrical part, a liquid spraying circular seam with the variable thickness is formed between the outer wall of the inner taper pipe and the inner wall of the outer taper part, and a liquid inlet cavity is formed between the inner wall of the shell and the outer wall of the outer taper part. The telescopic driving device is arranged on the outer side of the body and drives the movable pipe to move in the axial direction of the body. The movable pipe can move along the axis of the body, so that the gap between the outer conical part and the inner conical pipe can be changed to meet the printing and dyeing requirements of cloth with different densities.

Description

Technical Field

[0001] This utility model relates to the field of printing and dyeing technology, and in particular to an O-type nozzle with adjustable flow rate for dyeing vats. Background Technology

[0002] The O-type dyeing vat is a new type of fabric dyeing equipment with water-saving advantages. It consists of a vat body, a tower head, and a fabric trough. The vat body is a closed cylindrical structure with a horizontal axis and a fabric inlet on its side. The tower head is located above the vat body and contains a fabric circulation conveying mechanism and nozzles. The fabric trough has a C-shaped structure and is located inside the vat body. The fabric trough has an upper inlet and a lower outlet. The inlet connects to the outlet of the spray pipe, and the outlet connects to the inlet of the fabric circulation conveying mechanism.

[0003] The dyeing process primarily occurs at the nozzle. The nozzle has a pipe-like structure, through which a strand of fabric passes. A conical slit on the nozzle allows the dye liquor to be sprayed radially and obliquely backward from a circular area onto the outer surface of the fabric, thus achieving the dyeing process. Different fabric textures require different spraying speeds. Looser fabrics require lower spraying speeds, while denser fabrics require higher spraying speeds for better dye penetration. In existing technologies, the spraying speed of the dye liquor is often not freely adjustable, resulting in a narrow applicability of the O-type dyeing vat.

[0004] Therefore, it is necessary to improve the structure of the O-type dyeing vat to solve the above problems. Summary of the Invention

[0005] The main purpose of this invention is to provide an adjustable flow rate nozzle for an O-type dyeing vat, which can control the spraying speed of the dye liquor by changing the slit width inside the nozzle, so that the O-type dyeing vat can be flexibly adapted to the dyeing needs of various fabrics.

[0006] This utility model achieves the above objective through the following technical solution: an adjustable flow rate O-type dyeing vat nozzle, comprising:

[0007] The body includes an outer shell, an inner conical tube located at the inlet of the outer shell, and a guide tube located at the outlet of the outer shell. The outer shell has a liquid inlet chamber. The axis of the inner conical tube and the axis of the guide tube are both collinear with the axis of the outer shell. The inlet diameter of the inner conical tube is larger than the outlet diameter.

[0008] The movable tube, coaxial with the main body, includes a cylindrical part and an outer conical part located at the front of the cylindrical part. The outer wall of the cylindrical part is connected to the inner wall of the guide tube by a sealing element. A fabric passage is formed between the inner wall of the inner conical tube and the inner wall of the cylindrical part. A liquid spraying annular slit with variable thickness is formed between the outer wall of the inner conical tube and the inner wall of the outer conical part. A liquid inlet cavity is formed between the inner wall of the outer shell and the outer wall of the outer conical part.

[0009] A telescopic drive device is disposed on the outside of the main body and drives the movable tube to move along the axial direction of the main body.

[0010] Specifically, the outer shell includes a cylindrical body, a front end cap sealed to the inlet end of the body, and a rear end cap sealed to the outlet end of the body. The outer shell, the front end cap, and the rear end cap form the liquid inlet chamber. A liquid inlet pipe communicating with the liquid inlet chamber is provided on one side of the body. The edge of the front end cap is statically sealed to the edge of the inner conical tube. The outer wall of the guide tube is statically sealed to the inner wall of the rear end cap.

[0011] Furthermore, the telescopic drive device includes a drive assembly. A fixed plate perpendicular to its axial direction is provided on the outer wall of the movable tube. A limiting plate is provided on each side of the outlet direction of the main body. The limiting plate is provided with a transverse elongated hole and a pair of longitudinal guide rollers. The drive assembly includes a pair of drive blocks, a connecting rod, and a triangular drive plate. Each drive block is connected to the fixed plate through a connecting rod. The connecting rod passes vertically through the rear end cover and is dynamically sealed to the rear end cover. The drive block is provided with a transverse guide roller that slides in the transverse elongated hole. The triangular drive plate has a longitudinal elongated hole on the inner side of its long right-angle side and an oblique elongated hole on the inner side of its hypotenuse. The pair of longitudinal guide rollers both cooperate with the longitudinal elongated hole, thereby causing the triangular drive plate to move longitudinally. The transverse guide rollers pass through both the transverse elongated hole and the oblique elongated hole, and the transverse direction is perpendicular to the longitudinal direction.

[0012] Furthermore, the telescopic drive device also includes an operating component, which includes a telescopic rod, a threaded seat, a threaded throttle, an L-shaped rocker arm, and a connecting rod. The threaded seat is fixed to the wall of the cylinder body, and the threaded throttle passes through the cylinder body and is threadedly engaged with the threaded seat. One end of the L-shaped rocker arm has a waist-shaped hole, and the other end has a round hole. The outer end of the telescopic rod is coaxially rotatably connected to the inner end of the threaded throttle, and the inner end is hinged to the waist-shaped hole of the L-shaped rocker arm. The round hole of the L-shaped rocker arm is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the middle of the short right-angle side of the triangular drive plate. The lower part of the outer shell is provided with a rotating seat, and the corner position of the L-shaped rocker arm is axially connected to the rotating seat.

[0013] Furthermore, the cylinder body is provided with an auxiliary guide sleeve to guide the extension and retraction of the telescopic rod.

[0014] Furthermore, the cylinder body is provided with a fabric inlet that connects to the inlet of the inner cone tube.

[0015] Specifically, the outer cone portion has an elastic baffle strip on the side facing the inner cone tube.

[0016] The beneficial effects of this utility model's technical solution are:

[0017] In this invention, the movable tube can move along the axis of the main body, thus changing the gap between the outer cone and the inner cone to adapt to the dyeing needs of fabrics with different densities. Specifically, when the movable tube is closer to the inner cone, the passage area of ​​the spray ring decreases, thereby increasing the spraying speed of the dye, which is suitable for fabrics with higher densities; when the movable tube is farther from the inner cone, the passage area of ​​the spray ring increases, thereby decreasing the spraying speed of the dye, which is suitable for fabrics with lower densities. Attached Figure Description

[0018] Figure 1 This is a diagram showing the assembly relationship between the nozzle and the cylinder body in an embodiment.

[0019] Figure 2 This is a front view of the nozzle in the embodiment;

[0020] Figure 3 This is a vertical sectional view of the nozzle;

[0021] Figure 4 This is a cross-sectional view of the nozzle.

[0022] The numbers in the image represent:

[0023] 1-Main body, 11-Outer shell, 111-Cylinder body, 1111-Inlet pipe, 112-Front end cap, 113-Rear end cap, 12-Inner conical tube, 13-Guide tube, 14-Limiting plate, 141-Transverse elongated hole, 142-Longitudinal guide roller, 15-Rotating seat;

[0024] 2-Modible tube, 21-Cylindrical part, 22-Outer conical part, 221-Elastic partition strip, 23-Fixed plate;

[0025] 3-Telescopic drive device, 31-Operating component, 311-Telescopic rod, 312-Threaded seat, 313-Threaded throttle, 314-L-shaped swing arm, 315-Connecting rod, 32-Drive component, 321-Drive block, 3211-Transverse guide roller, 322-Connecting rod, 323-Triangular drive plate, 3231-Longitudinal elongated hole, 3232-Angled elongated hole; 4-Cylinder body, 41-Fabric inlet, 42-Auxiliary guide sleeve. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to specific embodiments.

[0027] Example:

[0028] like Figure 1 and Figure 4 As shown, the present invention provides an adjustable flow rate O-type dyeing nozzle, comprising a body 1, a movable tube 2, and a telescopic drive device 3.

[0029] like Figures 1 to 4 As shown, the main body 1 includes an outer shell 11, an inner conical tube 12 located at the inlet of the outer shell 11, and a guide tube 13 located at the outlet of the outer shell 11. The outer shell 11 includes a cylindrical body 111, a front end cap 112 sealed to the inlet end of the body 111, and a rear end cap 113 sealed to the outlet end of the body 111. The body 111, the front end cap 112, and the rear end cap 113 form a liquid inlet chamber. A liquid inlet pipe 1111 communicating with the liquid inlet chamber is provided on one side of the body 111. The axis of the inner conical tube 12 and the axis of the guide tube 13 are both collinear with the axis of the outer shell 11. The inlet diameter of the inner conical tube 12 is larger than the outlet diameter. The edge of the front end cap 112 is statically sealed to the edge of the inner conical tube 12, and the outer wall of the guide tube 13 is statically sealed to the inner wall of the rear end cap 113.

[0030] The main body 1 is the static part of the nozzle fixed inside the O-type dyeing vat. The fabric passes through the axis of the main body 1 through the inner cone tube 12 and the guide tube 13, and the dye liquor enters the inlet chamber through the inlet tube 1111 and is then sprayed onto the fabric. For easy assembly, the outer shell 11 adopts a splicing structure of the cylinder body 111, the front end cover 112 and the rear end cover 113, which fixes and seals the inner cone tube 12 and the guide tube 13, making manufacturing convenient and preventing the dye liquor from leaking from the fixed gaps.

[0031] like Figure 3 and Figure 4 As shown, the movable tube 2 passes through the middle of the body 1 along the axial direction, including a cylindrical part 21 and an outer conical part 22 located in front of the cylindrical part 21. The inner wall of the inner conical tube 12 and the inner wall of the movable tube 2 form a fabric passage. A liquid spraying annular seam with variable thickness is formed between the outer wall of the inner conical tube 12 and the inner wall of the outer conical part 22. The liquid spraying annular seam connects the liquid inlet chamber and the fabric passage. The outer wall of the cylindrical part 21 is dynamically sealed to the inner wall of the guide tube 13.

[0032] The movable tube 2 can move along the axis of the main body 1, thus changing the gap between the outer cone 22 and the inner cone tube 12 to adapt to the dyeing needs of fabrics with different densities. Specifically, when the movable tube 2 is closer to the inner cone tube 12, the passage area of ​​the spray ring decreases, thereby increasing the spraying speed of the dye liquor, which is suitable for fabrics with higher densities; when the movable tube 2 is farther away from the inner cone tube 12, the passage area of ​​the spray ring increases, thereby decreasing the spraying speed of the dye liquor, which is suitable for fabrics with lower densities.

[0033] like Figure 2 As shown, the telescopic drive device 3 is located on the outside of the main body 1 and drives the movable tube 2 to move along the axial direction of the main body 1. The telescopic drive device 3 includes an operating component 31 and a drive component 32.

[0034] like Figures 2 to 4As shown, a fixed plate 23 perpendicular to its axial direction is provided on the outer wall of the movable tube 2. A limiting plate 14 is provided on each side of the outlet direction of the main body 1. The limiting plate 14 is provided with a transverse elongated hole 141 and a pair of longitudinal guide rollers 142. The drive assembly 32 includes a pair of drive blocks 321, a connecting rod 322 and a triangular drive plate 323. Each drive block 321 is connected to the fixed plate 23 by a connecting rod 322. The connecting rod 322 passes vertically through the rear end cover 113 and is connected to the rear end cover 113. The 13 are dynamically sealed together. The drive block 321 is provided with a transverse guide roller 3211 that slides in the transverse elongated hole 141. The inner side of the long right-angle side of the triangular drive plate 323 is provided with a longitudinal elongated hole 3231 and the inner side of the inclined side is provided with an oblique elongated hole 3232. Both of the longitudinal guide rollers 142 are engaged with the longitudinal elongated hole 3231, so that the triangular drive plate 323 moves longitudinally. The transverse guide roller 3211 passes through the transverse elongated hole 141 and the oblique elongated hole 3232 at the same time, and the transverse and longitudinal directions are perpendicular.

[0035] The movable tube 2, two connecting rods 322, and two drive blocks 321 are connected to form a whole with a fixed relative position, thereby realizing the drive assembly 32 outside the main body 1 to drive the movable tube 2. The longitudinal guide roller 142 gives the triangular drive plate 323 only the freedom to move longitudinally, while the rear cover 113 gives the connecting rod 322 only the freedom to move laterally. However, because the lateral guide roller 3211 must pass through the oblique elongated hole 3232 of the triangular drive plate 323 and the lateral elongated hole 141 of the limiting plate 14 at the same time, the triangular drive plate 323 can drive the movable tube 2 to move laterally, where lateral refers to the axial direction of the movable tube 2.

[0036] like Figure 1 and Figure 2 As shown, the operating component 31 includes a telescopic rod 311, a threaded seat 312, a threaded throttle 313, an L-shaped rocker arm 314, and a connecting rod 315. The threaded seat 312 is fixed to the wall of the cylinder body 4. The threaded throttle 313 passes through the cylinder body 4 and is threadedly engaged with the threaded seat 312. One end of the L-shaped rocker arm 314 has a waist-shaped hole, and the other end has a round hole. The outer end of the telescopic rod 311 is coaxially rotatably connected to the inner end of the threaded throttle 313, and the inner end is hinged to the waist-shaped hole of the L-shaped rocker arm 314. The round hole of the L-shaped rocker arm 314 is hinged to one end of the connecting rod 315. The other end of the connecting rod 315 is hinged to the middle of the short right-angle side of the triangular drive plate 323. The lower part of the outer shell 11 is provided with a rotating seat 15, and the corner position of the L-shaped rocker arm 314 is axially connected to the rotating seat 15. The cylinder body 4 is provided with a fabric inlet 41 that connects to the inlet of the inner cone tube 12, and the cylinder body 4 is provided with an auxiliary guide sleeve 42 that guides the telescopic rod 311 to extend and retract.

[0037] The fabric is fed into the fabric passage after passing through the inlet 41. The drive assembly 32 is located outside the main body 1, but is still inside the cylinder 4, so the operating assembly 31 is needed to extend the operating end outside the cylinder 4. The threaded handle 313 moves axially by rotating on the threaded seat 312. Since the inner end of the threaded handle 313 is rotatably connected to the outer end of the telescopic rod 311, the telescopic rod 311 will also extend and retract along this axis. The inner end of the telescopic rod 311 causes the L-shaped rocker arm 314 to swing, which in turn pushes and pulls the triangular drive plate 323 longitudinally through the connecting rod 315. Because the L-shaped rocker arm 314 always generates a radial component force on the telescopic rod 311 during driving, an auxiliary guide sleeve 42 is provided inside the cylinder 4 to avoid bending of the telescopic rod 311 under force, thereby counteracting the radial component force and extending the service life of the telescopic rod 311.

[0038] like Figure 4 As shown, the outer cone portion 22 has an elastic baffle strip 221 on the side facing the inner cone tube 12.

[0039] The elastic baffle 221 can prevent the outer cone 22 from making direct hard contact with the inner cone tube 12 when they are too close, thus avoiding damage to both.

[0040] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A nozzle for an O-type dyeing vat with adjustable flow rate, characterized in that... include: The body includes an outer shell, an inner conical tube located at the inlet of the outer shell, and a guide tube located at the outlet of the outer shell. The outer shell has a liquid inlet chamber. The axis of the inner conical tube and the axis of the guide tube are both collinear with the axis of the outer shell. The inlet diameter of the inner conical tube is larger than the outlet diameter. The movable tube, coaxial with the main body, includes a cylindrical part and an outer conical part located at the front of the cylindrical part. The outer wall of the cylindrical part is connected to the inner wall of the guide tube by a sealing element. A fabric passage is formed between the inner wall of the inner conical tube and the inner wall of the cylindrical part. A liquid spraying annular slit with variable thickness is formed between the outer wall of the inner conical tube and the inner wall of the outer conical part. A liquid inlet cavity is formed between the inner wall of the outer shell and the outer wall of the outer conical part. A telescopic drive device is disposed on the outside of the main body and drives the movable tube to move along the axial direction of the main body.

2. The adjustable flow rate nozzle for an O-type dyeing vat according to claim 1, characterized in that: The outer casing includes a cylindrical body, a front end cap sealed to the inlet end of the body, and a rear end cap sealed to the outlet end of the body. The outer casing, the front end cap, and the rear end cap form the liquid inlet chamber. A liquid inlet pipe communicating with the liquid inlet chamber is provided on one side of the body. The edge of the front end cap is statically sealed to the edge of the inner conical tube. The outer wall of the guide tube is statically sealed to the inner wall of the rear end cap.

3. The adjustable flow rate nozzle for an O-type dyeing vat according to claim 2, characterized in that: The telescopic drive device includes a drive assembly. A fixed plate perpendicular to the axial direction is provided on the outer wall of the movable tube. A limiting plate is provided on each side of the body in the outlet direction. The limiting plate has a transverse elongated hole and a pair of longitudinal guide rollers. The drive assembly includes a pair of drive blocks, a connecting rod, and a triangular drive plate. Each drive block is connected to the fixed plate via a connecting rod. The connecting rod passes vertically through the rear end cover and is dynamically sealed to the rear end cover. A transverse guide roller slides within the transverse elongated hole on the drive block. A longitudinal elongated hole is provided on the inner side of the long right-angle side of the triangular drive plate, and an oblique elongated hole is provided on the inner side of the hypotenuse. Both longitudinal guide rollers engage with the longitudinal elongated hole, thereby causing the triangular drive plate to move longitudinally. The transverse guide rollers simultaneously pass through both the transverse elongated hole and the oblique elongated hole, with the transverse direction perpendicular to the longitudinal direction.

4. The adjustable flow rate nozzle for an O-type dyeing vat according to claim 3, characterized in that: The telescopic drive device also includes an operating component, which includes a telescopic rod, a threaded seat, a threaded throttle, an L-shaped swing arm, and a connecting rod. The threaded seat is fixed to the wall of the dyeing vat. The threaded throttle passes through the dyeing vat and is threadedly engaged with the threaded seat. One end of the L-shaped swing arm has a waist-shaped hole, and the other end has a round hole. The outer end of the telescopic rod is coaxially rotatably connected to the inner end of the threaded throttle, and the inner end is hinged to the waist-shaped hole of the L-shaped swing arm. The round hole of the L-shaped swing arm is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the middle of the short right-angle side of the triangular drive plate. The lower part of the outer shell is provided with a rotating seat, and the corner position of the L-shaped swing arm is axially connected to the rotating seat.

5. The adjustable flow rate nozzle for an O-type dyeing vat according to claim 4, characterized in that: The dyeing vat is equipped with an auxiliary guide sleeve to guide the extension and retraction of the telescopic rod.

6. The adjustable flow rate nozzle for an O-type dyeing vat according to claim 4, characterized in that: The dyeing vat is equipped with a fabric inlet that connects to the inlet of the inner conical tube.

7. The adjustable flow rate nozzle for an O-type dyeing vat according to claim 1, characterized in that: The outer cone portion has an elastic baffle strip on the side facing the inner cone tube.

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