Pipe high-speed sizing sleeve

Abstract

The utility model discloses a pipe high-speed sizing sleeve which comprises a mounting flange and is characterized by further comprising a water inlet sleeve assembly arranged at one end of the mounting flange, a first water inlet is formed in the water inlet sleeve assembly, a vacuum spraying cavity communicated with the first water inlet is formed in the water inlet sleeve assembly, and a second water inlet is formed in the water inlet sleeve assembly. The vacuum spraying cavity is sleeved with a sizing copper sleeve used for sizing a pipe, the sizing copper sleeve is provided with a plurality of spraying cooling holes communicated with the vacuum spraying cavity, one end of the sizing copper sleeve is provided with a water ring, and one end of the water ring is provided with a pressing ring; the pipe high-speed sizing sleeve provided by the utility model is low in assembly precision requirement and high in assembly efficiency, only new sizing copper sleeves and pressing rings need to be replaced when the specifications of pipes are replaced, the replacement cost is low, and the production speed is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of sizing sleeves of extruders, in particular to a high-speed sizing sleeve for pipes. Background Art

[0002] After the pipe extruder melts and shapes the material to form a high-temperature pipe, it is necessary to perform vacuum spray cooling on the high-temperature pipe through a sizing sleeve so that the output pipe is initially formed.

[0003] At present, the sizing sleeve generally adopts a disc-type sizing sleeve, such as the patent with invention publication number such as CN103660248A, authorization announcement number such as CN206855973U, CN217144872U, CN216635358U, or, for example, Figures 4 to 6 A disc-type sizing sleeve is shown, which mainly includes two relatively arranged mounting columns 6, multiple groups of sizing components 7 installed on the two mounting columns 6, and a mounting flange 81 for installing the two mounting columns 6. The sizing component 7 is a copper spacer 71 sleeved on the mounting column 6 and a stainless steel sizing disc 72 abutting against the copper spacer 71. The middle sizing holes of the multiple stainless steel sizing discs 72 are used for sizing the pipe. In addition, a water inlet connector 82 is also installed at one end of the mounting flange 81, and an extended sizing sleeve 83 is installed inside the water inlet connector 82. An adjusting water ring 84 is installed at one end of the water inlet connector 82.

[0004] However, the above-mentioned disc-type sizing sleeves all have the following disadvantages: the disc-type sizing sleeve adopts a structure composed of multiple stainless steel sizing discs 72, the assembly structure is complex, the required assembly accuracy is high (it is necessary to meet the width accuracy of multiple copper spacers 71 and the hole accuracy of the middle sizing holes of multiple stainless steel sizing discs 72), the assembly efficiency is low, and the overall required assembly length is relatively long (because the copper spacers 71 need to be installed, so that there are gaps between the stainless steel sizing discs 72 for water to flow in, but the copper spacers 71 will cause the overall length to be longer, and the copper spacers 71 cannot be made too thin, otherwise the processing accuracy of each copper spacer 71 needs to be very high, and the processing cost is high); when different pipe specifications need to be replaced, the entire disc-type sizing sleeve needs to be directly replaced at the same time, and the replacement cost is high. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned defects in the prior art and provide a high-speed sizing sleeve for pipes. The high-speed sizing sleeve for pipes has a simple assembly structure, low assembly precision requirements, high assembly efficiency, and a short length of the sizing copper sleeve. When different pipe specifications need to be replaced, it is only necessary to unload the pressure ring, the water ring and the sizing copper sleeve in sequence, and then replace the new sizing copper sleeve and the pressure ring. In addition, the processing precision requirements for the sizing copper sleeve are not high, and the processing cost is not high, so the replacement cost is low.

[0006] To achieve the above-mentioned purpose, the utility model provides a high-speed sizing sleeve for pipes, comprising a mounting flange, characterized in that it also comprises a water inlet sleeve assembly mounted on one end of the mounting flange, the water inlet sleeve assembly being provided with a first water inlet, the water inlet sleeve assembly being provided with a vacuum spray chamber connected to the first water inlet, the vacuum spray chamber being provided with a sizing copper sleeve for sizing the pipe, the sizing copper sleeve being provided with a plurality of spray cooling holes connected to the vacuum spray chamber, a water ring being provided at one end of the sizing copper sleeve, and a pressure ring being provided at one end of the water ring.

[0007] Preferably, the water inlet jacket assembly includes an outer copper jacket installed at one end of the mounting flange and a water jacket installed at one end of the outer copper jacket, the first water inlet is located between the outer copper jacket and the water jacket, and the vacuum spray chamber is located inside between the outer copper jacket and the water jacket.

[0008] Preferably, a first gasket is installed between the outer copper sleeve and the mounting flange, and a second gasket is installed between the water jacket and the outer copper sleeve.

[0009] Preferably, the vacuum spray chamber is provided with a plurality of water holes connected with the first water inlet.

[0010] Preferably, the vacuum spray chamber is arranged in a ring shape.

[0011] Preferably, one end of the sizing copper sleeve has an annular connecting portion, an annular slot hole is formed between the water inlet sleeve assembly and the water ring, and the annular connecting portion is clamped on the annular slot hole.

[0012] Preferably, a first sealing ring is installed between the annular connecting portion and the water inlet jacket assembly, and a second sealing ring is installed between the water ring and the pressure ring.

[0013] Preferably, the pressure ring comprises an inclined ring arranged on the inner wall of the water ring, and one end of the inclined ring abuts against one end of the sizing copper sleeve.

[0014] Preferably, a second water inlet is provided on the water ring, and an outflow opening is provided on the inclined ring of the pressure ring for water from the second water inlet to flow out.

[0015] Preferably, a first bolt is installed between the water inlet jacket assembly and the mounting flange, and the first bolt installs the water inlet jacket assembly and the mounting flange together. A second bolt is installed between the water ring, the pressure ring and the water inlet jacket assembly, and the second bolt installs the water ring, the pressure ring and the water inlet jacket assembly together.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. After the mounting flange and the water inlet sleeve assembly are fixed on the extruder, the utility model sequentially fixes the sizing copper sleeve, the water ring and the pressure ring on the water inlet sleeve assembly. This assembly arrangement has the advantages of simple assembly structure, low assembly precision requirement and high assembly efficiency.

[0018] 2. The sizing copper sleeve of the utility model cools and sizes the pipe through the first water inlet, the vacuum spray chamber and the spray cooling hole. The sizing copper sleeve is relatively short. At the same time, the maximum speed of producing pipes in the prior art is only 60m / min, but the sizing copper sleeve of the utility model can achieve 80m / min.

[0019] 3. When it is necessary to replace different pipe specifications, you only need to unload the pressure ring, water ring and sizing copper sleeve in turn, and then replace the new sizing copper sleeve and pressure ring. The sizing copper sleeve does not require high processing accuracy (coaxiality) and the processing cost is not high, so the replacement cost is low.

[0020] 4. In summary, the utility model provides a high-speed pipe sizing sleeve, which has low assembly accuracy requirements and high assembly efficiency. When changing the pipe specifications, only the new sizing copper sleeve and the pressure ring need to be replaced, the replacement cost is low, and the production speed is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a front cutaway schematic diagram of a high-speed pipe sizing sleeve provided in an embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of a high-speed pipe sizing sleeve provided by an embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the back side of a high-speed pipe sizing sleeve provided in an embodiment of the utility model;

[0025] Figure 4 It is a front cutaway schematic diagram of a disc-type sizing sleeve provided by the prior art;

[0026] Figure 5 It is a structural schematic diagram of a disc-type sizing sleeve provided by the prior art;

[0027] Figure 6 It is a schematic diagram of the back side of a disc-type sizing sleeve provided by the prior art.

[0028] Included in the figure are:

[0029] 1. Mounting flange; 15. First sealing ring; 16. Second sealing ring; 17. First bolt; 18. Second bolt; 2. Water inlet sleeve assembly; 21. First water inlet; 22. Vacuum spray chamber; 220. Water through hole; 25. Outer copper sleeve; 26. Water jacket; 27. First gasket; 28. Second gasket; 29. ​​Annular slot hole; 3. Sizing copper sleeve; 30. Spray cooling hole; 31. Annular connection; 4. Water ring; 40. Second water inlet; 5. Pressure ring; 50. Outflow opening; 51. Tilt ring; 6. Mounting column; 7. Multiple sizing assemblies; 81. Mounting flange; 71. Copper spacer; 72. Stainless steel sizing disc; 82. Water inlet connector; 83. Extended sizing sleeve; 84. Adjusting water ring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in this embodiment of the utility model to clearly and completely describe the technical solution in this embodiment of the utility model. Obviously, the described embodiment is one embodiment of the utility model, not all embodiments of the utility model. Based on this embodiment of the utility model, all other embodiments of the utility model obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figures 1 to 3 The embodiment of the utility model provides a high-speed sizing sleeve for pipes, comprising a mounting flange 1, the mounting flange 1 is used to be mounted on the discharge port of an extruder, and also comprises a water inlet sleeve assembly 2 mounted at one end of the mounting flange 1, a first water inlet 21 is provided on the water inlet sleeve assembly 2, a vacuum spray chamber 22 connected to the first water inlet 21 is provided inside the water inlet sleeve assembly 2, a sizing copper sleeve 3 for sizing the pipe is sleeved on the vacuum spray chamber 22, the sizing copper sleeve 3 passes through the inner wall of the mounting flange 1, a plurality of spray cooling holes 30 connected to the vacuum spray chamber 22 are provided on the sizing copper sleeve 3, a water ring 4 is installed at one end of the sizing copper sleeve 3, and a pressure ring 5 is installed at one end of the water ring 4.

[0032] The water inlet jacket assembly 2 includes an outer copper jacket 25 installed at one end of the mounting flange 1 and a water jacket 26 installed at one end of the outer copper jacket 25 . The first water inlet 21 is located between the outer copper jacket 25 and the water jacket 26 . The vacuum spray chamber 22 is located inside between the outer copper jacket 25 and the water jacket 26 .

[0033] A first gasket 27 is installed between the outer copper sleeve 25 and the mounting flange 1, and a second gasket 28 is installed between the water jacket 26 and the outer copper sleeve 25. The first gasket 27 and the second gasket 28 both have the function of increasing the sealing effect and preventing the installation from loosening.

[0034] The vacuum spray chamber 22 is provided with a plurality of water holes 220 connected to the first water inlet 21. The plurality of water holes 220 are conducive to improving the uniformity of water inlet, so that the water entering the vacuum spray chamber 22 is uniform.

[0035] The vacuum spray chamber 22 is arranged in a ring shape.

[0036] One end of the sizing copper sleeve 3 has an annular connecting portion 31, and an annular slot hole 29 is formed between the water inlet sleeve assembly 2 and the water ring 4, and the annular connecting portion 31 is clamped on the annular slot hole 29. Through the annular connecting portion 31 and the annular slot hole 29, the sizing copper sleeve 3 is fixed to one end of the water jacket 26 of the water inlet sleeve assembly 2.

[0037] A first sealing ring 15 is installed between the annular connection part 31 and the water inlet jacket assembly 2. Specifically, the first sealing ring 15 is installed between the annular connection part 31 and the water jacket 26 of the water inlet jacket assembly 2. A second sealing ring 16 is installed between the water ring 4 and the pressure ring 5. The first sealing ring 15 and the second sealing ring 16 both have the function of preventing water leakage.

[0038] The water ring 4 is provided with a second water inlet 40 , and the inclined ring 51 of the pressure ring 5 is provided with an outflow opening 50 for water from the second water inlet 40 to flow out.

[0039] A first bolt 17 is installed between the water inlet jacket assembly 2 and the mounting flange 1, and the first bolt 17 mounts the water inlet jacket assembly 2 and the mounting flange 1 together. A second bolt 18 is installed between the water ring 4, the pressure ring 5 and the water inlet jacket assembly 2, and the second bolt 18 mounts the water ring 4, the pressure ring 5 and the water inlet jacket assembly 2 together. Specifically, the outer copper sleeve 25 and the water jacket 26 are respectively mounted on the mounting flange 1 through the first bolt 17, and the water ring 4 and the pressure ring 5 are respectively mounted on the water jacket 26 of the water inlet jacket assembly 2 through bolts.

[0040] Specifically, a high-speed pipe sizing sleeve in an embodiment of the utility model can be specifically applied to nylon tubes, and is used to cool and form high-temperature nylon tubes extruded by an extruder. It has the advantages of low assembly precision requirements, high assembly efficiency, and only needing to replace new sizing copper sleeves 3 and pressure rings 5 ​​when changing the specifications of the pipes, low replacement cost, and high production speed.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-speed pipe sizing sleeve, comprising a mounting flange (1), characterized in that: The invention also comprises a water inlet sleeve assembly (2) mounted on one end of the mounting flange (1), the water inlet sleeve assembly (2) being provided with a first water inlet (21), the water inlet sleeve assembly (2) being provided with a vacuum spray chamber (22) connected to the first water inlet (21), the vacuum spray chamber (22) being provided with a sizing copper sleeve (3) for sizing the pipe, the sizing copper sleeve (3) being provided with a plurality of spray cooling holes (30) connected to the vacuum spray chamber (22), a water ring (4) being provided at one end of the sizing copper sleeve (3), and a pressure ring (5) being provided at one end of the water ring (4).

2. A high-speed pipe sizing sleeve according to claim 1, characterized in that: The water inlet jacket assembly (2) comprises an outer copper jacket (25) mounted on one end of the mounting flange (1) and a water jacket (26) mounted on one end of the outer copper jacket (25); the first water inlet (21) is located between the outer copper jacket (25) and the water jacket (26); and the vacuum spray chamber (22) is located inside between the outer copper jacket (25) and the water jacket (26).

3. A high-speed pipe sizing sleeve according to claim 2, characterized in that: A first gasket (27) is installed between the outer copper sleeve (25) and the mounting flange (1), and a second gasket (28) is installed between the water jacket (26) and the outer copper sleeve (25).

4. The high-speed pipe sizing sleeve according to claim 1, characterized in that: The vacuum spray chamber (22) is provided with a plurality of water holes (220) connected to the first water inlet (21).

5. The high-speed pipe sizing sleeve according to claim 1, characterized in that: The vacuum spray chamber (22) is arranged in a ring shape.

6. The high-speed pipe sizing sleeve according to claim 1, characterized in that: One end of the sizing copper sleeve (3) has an annular connecting portion (31), an annular slot hole (29) is formed between the water inlet sleeve assembly (2) and the water ring (4), and the annular connecting portion (31) is clamped on the annular slot hole (29).

7. A high-speed pipe sizing sleeve according to claim 6, characterized in that: A first sealing ring (15) is installed between the annular connecting portion (31) and the water inlet jacket assembly (2), and a second sealing ring (16) is installed between the water ring (4) and the pressure ring (5).

8. The high-speed pipe sizing sleeve according to claim 1, characterized in that: The pressure ring (5) comprises an inclined ring (51) arranged on the inner wall of the water ring (4), and one end of the inclined ring (51) abuts against one end of the sizing copper sleeve (3).

9. A high-speed pipe sizing sleeve according to claim 8, characterized in that: The water ring (4) is provided with a second water inlet (40), and the inclined ring (51) of the pressure ring (5) is provided with an outflow opening (50) for water from the second water inlet (40) to flow out.

10. The high-speed pipe sizing sleeve according to claim 1, characterized in that: A first bolt (17) is installed between the water inlet jacket assembly (2) and the mounting flange (1), and the first bolt (17) installs the water inlet jacket assembly (2) and the mounting flange (1) together. A second bolt (18) is installed between the water ring (4), the pressure ring (5) and the water inlet jacket assembly (2), and the second bolt (18) installs the water ring (4), the pressure ring (5) and the water inlet jacket assembly (2) together.

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