Nozzle leakage-proof device of dyeing machine without cloth guide wheel

Abstract

The utility model provides a nozzle leakproof device of a dyeing machine without a cloth guide wheel, which comprises a machine head with a barrel cavity, one end of the machine head is a head port, the other end of the machine head is a tail port, a side wall of the machine head is communicated with a spray pressure water pipe, a nozzle assembly is arranged from the head port, a flange plate is arranged on the head port of the machine head, and a sealing assembly is clamped between the nozzle assembly and the flange plate. The sealing assembly comprises a sealing ring seat, and a first sealing ring used for being tightly attached to the inner wall of the machine head and a second sealing ring used for being tightly attached to the flange plate are arranged on the sealing ring seat. According to the leakage-proof device, multiple sealing structures are used at the connecting positions of the nozzle assembly, the machine head and the flange plate, liquid leakage is effectively prevented, and therefore leakage between the water guide ring and the machine head is prevented. The problem that fabric operation is not smooth due to insufficient nozzle impact pressure is solved, it is ensured that liquid flow generates enough impact pressure to act on the fabric, the production efficiency can be effectively improved, and therefore more efficient production operation is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a nozzle of a dyeing machine, in particular to a nozzle leakage prevention device of a dyeing machine without a guide wheel. Background Art

[0002] The non-guide wheel jet overflow dyeing machine is a special form of rope dyeing machine. Since the fabric is in a relaxed state during dyeing and is under little tension, the fabric feels soft and has uniform color after dyeing, so it is used for dyeing synthetic fabrics, warp knitted fabrics, stretch fabrics, etc. under high pressure conditions.

[0003] Jet overflow dyeing machine is the most widely used dyeing equipment in the current printing and dyeing industry. The nozzle, as the "heart", plays a very important role in the entire dyeing cycle. On the one hand, the dye liquid flowing into the nozzle is one of the main driving forces for conveying the fabric. On the other hand, 90% of the dyeing process is completed in the nozzle, and the fabric is also fully contacted and exchanged with the dye liquid in the nozzle system to complete the coloring process.

[0004] However, as the key component connecting the fabric inlet and the fabric guide tube, the good sealing of the nozzle installation greatly affects the dyeing quality and production efficiency. The main nozzle device of the traditional dyeing machine is directly connected, that is, the metal connection leads to poor sealing. Water will flow out through the water guide ring and the surface of the head flange, causing the spray pressure to drop, affecting the cloth running speed, and may even form a reverse jet. Due to poor sealing, the nozzle spray pressure is weakened to a certain extent, which leads to insufficient power, the fabric does not run smoothly in the fabric guide tube, and the connection and matching parts will also be subjected to greater mechanical stress due to excessive impact. Mechanical damage is very likely to occur during normal operation, seriously affecting production efficiency and production safety. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a nozzle leakage prevention device for a dyeing machine without a guide wheel.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a nozzle leakage prevention device for a dyeing machine without a guide wheel, comprising a machine head with a cylindrical cavity, one end of the machine head being a head port and the other end being a tail port, a side wall of the machine head being connected to a spray pressure water pipe, a nozzle assembly being loaded through the head port, a flange being arranged on the head port of the machine head, a sealing assembly being sandwiched between the nozzle assembly and the flange, the sealing assembly comprising a sealing ring seat, a sealing ring 1 for closely contacting the inner wall of the machine head and a sealing ring 2 for closely contacting the flange being arranged on the sealing ring seat.

[0007] In the nozzle leak prevention device of the above-mentioned cloth guiding wheel-free dyeing machine, the sealing ring seat includes a ring body. An annular flange is convexly provided on the outer peripheral edge of the ring body. The ring body extends into the barrel cavity of the machine head. The annular flange overlaps on the first port of the machine head. A groove is provided on the inner end surface of the flange plate. The flange plate is fixed on the first port of the machine head, so that the annular flange is embedded in the groove.

[0008] In the nozzle leak prevention device of the above-mentioned cloth guiding wheel-free dyeing machine, a first annular groove is recessed on the peripheral wall of the ring body. A first sealing ring is embedded in the first annular groove. The first sealing ring is an O-ring. The first sealing ring is in close contact with the inner wall of the machine head.

[0009] In the nozzle leak prevention device of the above-mentioned cloth guiding wheel-free dyeing machine, a second annular groove is recessed on the outer end surface of the annular flange. A second sealing ring is embedded in the second annular groove. The second sealing ring is a washer. The outer side surface of the washer is a convex arc surface. The convex arc surface of the washer is in close contact with the inner wall of the groove of the flange plate.

[0010] In the nozzle leak prevention device of the above-mentioned cloth guiding wheel-free dyeing machine, the central window of the ring body communicates with the central hole of the flange plate and the injection channel of the nozzle assembly.

[0011] In the nozzle leak prevention device of the above-mentioned cloth guiding wheel-free dyeing machine, the nozzle assembly includes a nozzle spout and a water guiding ring. The port of the nozzle spout has an external thread. The port of the water guiding ring has an internal thread. The water guiding ring is sleeved on the nozzle spout to form a threaded meshing connection. The nozzle spout is connected to the sealing ring seat.

[0012] In the nozzle leak prevention device of the above-mentioned cloth guiding wheel-free dyeing machine, a tooth plate and a tooth plate flange are provided on the inner end of the water guiding ring. The tooth plate is sleeved on the outer periphery of the tooth plate flange. The tooth plate is fixedly connected to the machine head by bolts. The central hole of the tooth plate flange communicates with the lumen of the water guiding ring.

[0013] In the nozzle leak prevention device of the above-mentioned cloth guiding wheel-free dyeing machine, a nozzle horn is connected to the central hole of the tooth plate flange. The nozzle horn is a bent pipe body. An outlet is provided on the side wall of the machine head. The horn mouth of the nozzle horn is connected to the outlet.

[0014] In the nozzle leak prevention device of the above-mentioned cloth guiding wheel-free dyeing machine, a door cover is provided on the tail port of the machine head. A lock is provided on the outside of the tail end of the machine head. The lock locks the door cover to close the tail port. A connector is provided in the machine head between the nozzle assembly and the door cover.

[0015] Compared with the prior art, the nozzle leak prevention device of the present cloth guiding wheel-free dyeing machine has the following beneficial effects:

[0016] 1. Effective leak prevention: The leak prevention device effectively prevents liquid leakage by using a multi - seal structure at the joints between the nozzle assembly, the machine head, and the flange, thus preventing leakage between the water guide ring and the machine head.

[0017] 2. Improved sealing performance: The design of the sealing assembly takes into account harsh working environments such as high temperature and high pressure. The sealing method and the use of silicone rubber material can maintain good elasticity and deformation ability under extreme conditions, thus ensuring the stability and reliability of the sealing effect.

[0018] 3. Stable structure: The design of the ring body enables the sealing assembly to fit tightly against the inner wall of the machine head and the flange, thereby enhancing the overall structural stability. The cooperation of the annular flange and the groove provides a firm mechanical connection, preventing the risk of seal failure.

[0019] 4. Good liquid flow channel: The central window design of the ring body ensures unobstructed flow of the injection channel and the liquid flow path, while avoiding liquid leakage. This design not only ensures efficient liquid flow transmission but also maintains the working performance of the equipment.

[0020] 5. Optimized injection effect: Effectively prevent leakage to form a good seal to eliminate the problem of uneven fabric running caused by insufficient nozzle impact pressure, ensure that the liquid flow generates sufficient impact pressure on the fabric, can effectively improve production efficiency, and thus achieve more efficient production operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall sectional view structure diagram of the nozzle leak prevention device of the fabric - less - guide - wheel dyeing machine.

[0022] Figure 2 It is the sectional view structure diagram of the nozzle assembly and the sealing assembly in the nozzle leak prevention device of the fabric - less - guide - wheel dyeing machine.

[0023] In the figure, 1. Machine head; 2. Spray pressure water pipe; 3. Flange; 4. Sealing ring seat; 5. Sealing ring one; 6. Sealing ring two; 7. Nozzle orifice; 8. Water guide ring; 9. Tooth plate; 10. Tooth plate flange; 11. Nozzle horn; 12. Connector; 13. Door cover; 14. Lock. DETAILED DESCRIPTION OF THE INVENTION

[0024] The following are specific embodiments of the present invention in combination with the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0025] As Figure 1 and 2As shown in the figure, the nozzle leak-proof device of this non-guide cloth wheel dyeing machine includes a machine head 1 with a cylinder cavity. One end of the machine head 1 is the head port, and the other end is the tail port. A spray pressure water pipe 2 is connected to the side wall of the machine head 1. The nozzle assembly is loaded from the head port. A flange 3 is provided on the head port of the machine head 1. A sealing assembly is clamped between the nozzle assembly and the flange 3. The sealing assembly includes a sealing ring seat 4. A first sealing ring 5 for closely adhering to the inner wall of the machine head 1 and a second sealing ring 6 for closely adhering to the flange 3 are provided on the sealing ring seat 4.

[0026] As Figure 2 shown, the sealing ring seat 4 includes a ring body. An annular flange is convexly provided on the outer peripheral edge of the outer end of the ring body. The ring body extends into the cylinder cavity of the machine head 1, and the annular flange overlaps on the head port of the machine head 1. A groove is provided on the inner end face of the flange 3. The flange 3 is fixed on the head port of the machine head 1, so that the annular flange is embedded in the groove. The nozzle assembly is pressed by the inner end of the ring body. A metal surface contact is formed between the peripheral wall of the ring body and the inner wall of the cylinder cavity of the machine head 1. A metal surface contact is formed between the outer end face of the annular flange and the groove of the flange 3.

[0027] A first ring groove is recessed on the peripheral wall of the ring body. The first sealing ring 5 is embedded in the first ring groove. The first sealing ring 5 is an O-ring. The first sealing ring 5 forms a close fit with the inner wall of the machine head 1. The O-ring forms a circumferential covering state for the ring body. The material of the O-ring is silicone rubber, which can not only meet the harsh working environments such as high temperature and high pressure, but also effectively fill the sealing gap through its good elasticity and deformation ability, ensuring a good sealing effect, and at the same time ensuring the safety and stability of the equipment operation. The gap sealing between the nozzle assembly and the machine head 1 is realized through the O-ring.

[0028] A second ring groove is recessed on the outer end face of the annular flange. The second sealing ring 6 is embedded in the second ring groove. The second sealing ring 6 is a washer. The outer side face of the washer is a convex arc surface. The convex arc surface of the washer forms a close fit with the inner wall of the groove of the flange 3. The washer is embedded in the second ring groove and the convex arc surface part exceeds the second ring groove, and the deformation thickness is increased through the convex arc surface part to strengthen the sealing performance. The material of the washer is silicone rubber, which can not only meet the harsh working environments such as high temperature and high pressure, but also effectively fill the sealing gap through its good elasticity and deformation ability, ensuring a good sealing effect, and at the same time ensuring the safety and stability of the equipment operation. The gap sealing between the flange 3 and the machine head 1 is realized through the washer.

[0029] The middle window of the ring body communicates with the middle hole of the flange 3 and the injection channel of the nozzle assembly. Through the sealing assembly, both the smoothness of the liquid flow path can be guaranteed and a good sealing effect can be provided to avoid leakage.

[0030] The nozzle assembly includes a nozzle orifice 7 and a water guide ring 8. The port of the nozzle orifice 7 has an external thread, and the port of the water guide ring 8 has an internal thread. The water guide ring 8 is sleeved on the nozzle orifice 7 to form a threaded engagement connection; the nozzle orifice 7 is connected to a seal ring seat 4. The nozzle orifice 7 is close to the first port of the machine head 1, and the water guide ring 8 is placed in the middle position of the barrel cavity of the machine head 1. The nozzle orifice 7 and the water guide ring 8 are connected to form a water jet pipe diameter.

[0031] As Figure 1 shown, a tooth plate 9 and a tooth plate flange 10 are arranged on the inner end of the water guide ring 8. The tooth plate 9 is sleeved on the outer periphery of the tooth plate flange 10. The tooth plate 9 is fixedly connected to the machine head 1 by bolts. The central hole of the tooth plate flange 10 communicates with the pipe cavity of the water guide ring 8.

[0032] A nozzle horn 11 is connected to the central hole of the tooth plate flange 10. The nozzle horn 11 is a bent pipe body. An outlet is opened on the side wall of the machine head 1. The horn mouth of the nozzle horn 11 is connected to the outlet.

[0033] A door cover 13 is arranged on the tail port of the machine head 1, and a lock catch 14 is arranged on the outer side of the tail end of the machine head 1. The lock catch 14 locks the door cover 13 to close the tail port. By rotating the lock catch 14, the pressing or releasing of the door cover 13 can be realized, so as to control the closing or opening of the tail port of the machine head 1 by the door cover 13. A connector 12 is arranged inside the machine head 1 between the nozzle assembly and the door cover 13.

[0034] Other components inside the machine head 1 are prior art, and their working principles are also prior art, so no detailed description will be given here.

[0035] In the nozzle structure of the dyeing machine, by axially coating a sealing structure on the seal ring seat 4 and embedding a sealing structure on the end face of the seal ring seat 4, sealing at two positions is achieved, thereby preventing leakage between the water guide ring 8 and the machine head 1.

[0036] The novel nozzle leak prevention device has a simple structure, is convenient for loading and unloading, operates stably, has a remarkable leak prevention effect, and can also solve the problem that the fabric runs smoothly due to insufficient impact pressure of the nozzle caused by liquid leakage, and can effectively improve production efficiency, thereby realizing more efficient production operation.

[0037] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar ways for substitution, but will not deviate from the spirit of the present utility model or exceed the defined scope. Although the present utility model has been described in detail in the drawings and the foregoing description, such description is considered to be illustrative or exemplary rather than restrictive. It should be understood that within the scope of the following claims, those of ordinary skill in the art can make changes and modifications. Specifically, the present utility model encompasses additional embodiments having any combination of features from the different embodiments described above. With respect to the use of the expressions "generally" or "substantially", this patent application should be understood as disclosing that the same fully meets these features and values, i.e., without the foregoing being characterized as "generally" or "substantially".

[0038] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected" and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A nozzle leak prevention device for a dyeing machine without a guide wheel, comprising a machine head with a cylindrical cavity, one end of the machine head being a head port and the other end being a tail port, and a side wall of the machine head being connected to a spray pressure water pipe, characterized in that: The nozzle assembly is inserted into the first port, a flange is arranged on the first port of the machine head, a sealing assembly is sandwiched between the nozzle assembly and the flange, and the sealing assembly includes a sealing ring seat, and a sealing ring 1 for tightly fitting the inner wall of the machine head and a sealing ring 2 for tightly fitting the flange are arranged on the sealing ring seat.

2. The nozzle leakage prevention device of the guide wheel-free dyeing machine according to claim 1, characterized in that: The sealing ring seat includes a ring body, an annular flange is protruded around the outer end of the ring body, the ring body extends into the barrel cavity of the machine head, the annular flange is overlapped on the first port of the machine head, the inner end surface of the flange is provided with a groove, the flange is fixed on the first port of the machine head, and the annular flange is embedded in the groove.

3. The nozzle leakage prevention device of the guide wheel-free dyeing machine according to claim 2, characterized in that: A ring groove is concavely arranged on the peripheral wall of the ring body, and a sealing ring is embedded in the ring groove. The sealing ring is an O-ring, and the sealing ring is in close contact with the inner wall of the machine head.

4. The nozzle leakage prevention device of the guide wheel-free dyeing machine according to claim 2, characterized in that: A second annular groove is concavely arranged on the outer end surface of the annular flange, and a second sealing ring is embedded in the second annular groove. The second sealing ring is a gasket, and the outer side surface of the gasket is a convex arc surface. The convex arc surface of the gasket is in close contact with the inner wall of the groove of the flange.

5. The nozzle leakage prevention device of the guide wheel-free dyeing machine according to claim 2, characterized in that: The middle window of the ring body is connected to the middle hole of the flange and the injection channel of the nozzle assembly.

6. The nozzle leakage prevention device of the guide wheel-free dyeing machine according to claim 2, characterized in that: The nozzle assembly comprises a nozzle spout and a water guide ring, the port of the nozzle spout has an external thread, the port of the water guide ring has an internal thread, the water guide ring is sleeved on the nozzle spout to form a threaded engagement connection; the nozzle spout is connected to the sealing ring seat.

7. The nozzle leakage prevention device of the guide wheel-free dyeing machine according to claim 6, characterized in that: A tooth plate and a tooth plate flange are arranged on the inner end of the water guide ring. The tooth plate is sleeved on the outer periphery of the tooth plate flange. The tooth plate is fixedly connected to the machine head by bolts. The center hole of the tooth plate flange is connected to the tube cavity of the water guide ring.

8. The nozzle leakage prevention device of the guide wheel-free dyeing machine according to claim 7, characterized in that: The center hole of the tooth plate flange is connected to a nozzle horn, which is a curved pipe body. An outlet is arranged on the side wall of the machine head, and the horn mouth of the nozzle horn is connected to the outlet.

9. The nozzle leakage prevention device of the guide wheel-free dyeing machine according to claim 1, characterized in that: A door cover is arranged on the tail end of the machine head, and a lock is arranged on the outer side of the tail end of the machine head, and the lock locks the door cover to close the tail end; a connector is arranged inside the machine head between the nozzle assembly and the door cover.

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