A sizing sleeve with good cooling effect

Abstract

The invention discloses a sizing sleeve with good cooling effect, comprising a flange, wherein water inlet components and sizing components are respectively arranged at two ends of the flange, wherein the sizing components comprise a spiral blade and a plurality of positioning rods, wherein the spiral blade is integrally formed and the blade spacing increases successively from the end close to the flange to the end far away from the flange, wherein one end of the spiral blade and the plurality of positioning rods are connected to the flange, wherein the plurality of positioning rods penetrate the spiral blade, wherein a spiral channel is provided in the middle of the spiral blade, wherein the spiral channel is connected to the water inlet component, wherein the device has a simple structure, good cooling effect and high production efficiency.

Description

Technical Field

[0001] The invention relates to the field of pipe shaping, and in particular to a sizing sleeve with good cooling effect. Background Art

[0002] Existing plastic pipe sizing mostly uses a copper sleeve slotted structure for cooling, which has a complex structure and high cost, a small and uneven contact surface with water, and often a large temperature difference between the upper and lower water due to the failure of the water below to drain away in time, resulting in slow cooling, unevenness, and poor shaping effect. The cooling method using a disc sizing device requires that the inner holes of the discs be punched one by one according to the outer diameter of the pipe to be produced during disc manufacturing, and multiple discs are stacked, which not only has high inner hole processing costs but also low work efficiency. Summary of the invention

[0003] In order to overcome the above disadvantages, the object of the present invention is to provide a sizing sleeve with simple structure, good cooling effect and high production efficiency.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a sizing sleeve with good cooling effect, including a flange, a water inlet assembly and a sizing assembly are respectively arranged at both ends of the flange, the sizing assembly includes a spiral blade and a plurality of positioning rods, the spiral blade is integrally formed and the blade spacing increases successively from the flange end to the flange end, one end of the spiral blade and the plurality of positioning rods are connected to the flange, the plurality of positioning rods all penetrate the spiral blade, the middle part of the spiral blade has a spiral channel, and the spiral channel is connected to the water inlet assembly.

[0005] The invention provides a sizing sleeve with good cooling effect, which has the following beneficial effects: by arranging a sizing assembly composed of spiral blades and multiple positioning rods at one end of a flange, the direct contact surface between the pipe to be produced and the cooling water can be increased, and at the same time, the spiral channel of the spiral blade can be used to prevent the pipe to be produced from being deformed, thereby increasing the cooling and shaping speed of the pipe to be produced, thereby improving the production efficiency; by adopting the spiral blades formed by continuous bending and rolling at one time, the cumbersome single-piece processing and superposition processes of the previous disc-type sizing sleeve are reduced; by arranging the blade spacing in a progressively increasing manner from the flange end close to the flange end to the flange end far away, the pipe to be produced entering the sizing sleeve can first contact the dense spiral blades, and obtain timely, uniform and sufficient cooling.

[0006] Furthermore, the water inlet assembly includes a first water ring and a second water ring connected to the flange, the first water ring is located inside the second water ring, and the first water ring and the second water ring are respectively provided with a first placement channel and a second placement channel, the first placement channel, the second placement channel and the spiral channel are connected, and the inner diameter of the first placement channel is consistent with that of the spiral channel and is the same as the outer diameter of the pipe to be produced, thereby realizing cooling and shaping of the pipe to be produced.

[0007] Furthermore, the first water ring includes an integrally formed connecting portion and a cooling portion, a step structure is provided inside the second water ring, the step structure matches the shape of the connecting portion of the first water ring, a certain distance is provided between the outer wall of the cooling portion and the inner wall of the second water ring to form a water storage cavity, a plurality of second water inlets connected to the water storage cavity are provided inside the second water ring, and the pipe to be produced can be pre-cooled and shaped through the water storage cavity.

[0008] Furthermore, a plurality of cooling channels are provided on the first water ring, and both ends of the cooling channels are respectively connected to the first placement channel and the water storage chamber. The cooling water increases the lubricity of the pipe to be produced and the inner wall of the first placement channel by flowing into the first placement channel, and pre-cools and shapes the pipe to be produced.

[0009] Furthermore, a water ring cover plate is provided on the second water ring, a feed channel is opened on the water ring cover plate, the first placement channel, the second placement channel and the feed channel are connected and the inner diameters increase successively, so as to facilitate the entry of the pipes to be produced.

[0010] Furthermore, there is a certain distance between the inner wall of the cover plate connection part of the water ring cover plate and the second water ring to form an annular water film, and the second water ring is provided with a plurality of first water inlets connected with the annular water film, so that the pipes to be produced that have just entered can be initially cooled.

[0011] Furthermore, a plurality of vacuum box connecting holes are provided on the flange so that the flange can be connected to the vacuum box.

[0012] Furthermore, a nut is provided at one end of the positioning rod away from the flange, and the nut abuts against the spiral blade, and the spiral blade is locked by the nut.

[0013] Furthermore, the spiral blades are made of steel or copper, have strong wear resistance and are not easily deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] In the figure:

[0016] 1-flange; 2-spiral blade; 21-spiral channel; 3-positioning rod; 4-nut; 5-first water ring; 51-connecting part; 52-cooling part; 53-first placement channel; 54-cooling channel; 6-second water ring; 61-second placement channel; 62-step structure; 7-water storage chamber; 8-second water inlet; 9-water ring cover; 91-cover connection part; 92-feed channel; 10-annular water film; 11-first water inlet; 12-vacuum box connection hole. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0018] See attached Figure 1 As shown, a sizing sleeve with good cooling effect comprises a flange 1, water inlet components and sizing components are respectively arranged at both ends of the flange 1, a plurality of vacuum box connecting holes 12 are arranged on the flange 1, the sizing component comprises a spiral blade 2 and a plurality of positioning rods 3, the positioning rods 3 are made of stainless steel, the spiral blade 2 is integrally formed and the blade spacing increases from the end close to the flange 1 to the end far away from the flange 1, the blade spacing adopts an incremental aluminum sleeve or other metal sleeve as support, the spiral blade 2 and one end of the plurality of positioning rods 3 are connected to the flange 1, the plurality of positioning rods 3 all penetrate the spiral blade 2, a nut 4 is arranged at the end of the positioning rod 3 far away from the flange 1, the nut 4 is against the spiral blade 2, the spiral blade 2 is made of any material of steel or copper, and a spiral channel 21 is provided in the middle of the spiral blade 2;

[0019] The spiral channel 21 is connected to the water inlet assembly, and the water inlet assembly includes a first water ring 5 and a second water ring 6 connected to the flange 1. The first water ring 5 is located in the second water ring 6. The first water ring 5 and the second water ring 6 are respectively provided with a first placement channel 53 and a second placement channel 61. The first placement channel 53, the second placement channel 61 and the spiral channel 21 are connected, and the inner diameter of the first placement channel 53 is consistent with that of the spiral channel 21 and is the same as the outer diameter of the pipe to be produced. The second water ring 6 is provided with a water ring cover plate 9, and a feed channel 92 is provided on the water ring cover plate 9. The first placement channel 53, the second placement channel 61 and the feed channel 92 are connected, and the inner diameters increase sequentially;

[0020] The first water ring 5 includes an integrally formed connecting portion 51 and a cooling portion 52. A step structure 62 is provided in the second water ring 6. The step structure 62 matches the shape of the connecting portion 51 of the first water ring 5. There is a certain distance between the outer wall of the cooling portion 52 and the inner wall of the second water ring 6 to form a water storage cavity 7. A plurality of second water inlets 8 connected to the water storage cavity 7 are provided in the second water ring 6. A plurality of cooling channels 54 are provided on the first water ring 5. Both ends of the cooling channel 54 are respectively connected to the first placement channel 53 and the water storage cavity 7. There is a certain distance between the inner wall of the cover plate connecting portion 91 of the water ring cover plate 9 and the second water ring 6 to form an annular water film 10. The second water ring 6 is provided with a plurality of first water inlets 11 connected to the annular water film 10.

[0021] Specific working process: connect flange 1 to vacuum box and place water inlet assembly outside vacuum box, then slowly let pipe to be produced extruded from pipe extruder enter feed channel 92 of water ring cover plate 9, since second water ring 6 is provided with first water inlet 11 connected with annular water film 10 (formed by the distance between inner wall of cover plate connection part 91 and second water ring 6), cooling water enters from first water inlet 11 and flows into annular water film 10, so that pipe to be produced just entering water ring cover plate 9 to second water ring 6 is preliminarily cooled, then pipe to be produced will pass through first water ring 5, since there is a space between outer wall of cooling part 52 of first water ring 5 and inner wall of second water ring 6 that can form water storage cavity 7 The first water ring 5 is provided with a plurality of cooling channels 54 whose two ends are respectively connected with the first placement channel 53 and the water storage chamber 7. The cooling water enters the second water inlet 8 connected with the water storage chamber 7 and flows into the first water ring 5 to pre-cool and shape the pipe to be produced, and increase the lubricity between the pipe to be produced and the inner wall of the first water ring 5. The pipe to be produced after preliminary cooling reaches the spiral channel 21 of the spiral blade 24 from the outlet end of the first water ring 5. When cooling continues, the cooling water sprayed from the spray head in the vacuum box will directly cool the pipe to be produced, increase the cooling area and effectively improve the production speed, and at the same time prevent the pipe to be produced from deformation through the spiral channel 21.

[0022] The above implementation modes are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A sizing sleeve with good cooling effect, comprising a flange (1), wherein two ends of the flange (1) are respectively provided with a water inlet component and a sizing component, wherein: The sizing component comprises a spiral blade (2) and a plurality of positioning rods (3); the spiral blade (2) is integrally formed and the blade spacing increases from the end close to the flange (1) to the end far from the flange (1); one end of the spiral blade (2) and the plurality of positioning rods (3) are connected to the flange (1); the plurality of positioning rods (3) pass through the spiral blade (2); a spiral channel (21) is provided in the middle of the spiral blade (2); the spiral channel (21) is connected to the water inlet component; a nut (4) is provided at the end of the positioning rod (3) far from the flange (1); the nut (4) abuts against the spiral blade (2); the spiral blade (2) is made of either steel or copper.

2. A sizing sleeve with good cooling effect according to claim 1, characterized in that: The water inlet assembly comprises a first water ring (5) and a second water ring (6) connected to the flange (1); the first water ring (5) is located inside the second water ring (6); the first water ring (5) and the second water ring (6) are respectively provided with a first placement channel (53) and a second placement channel (61); the first placement channel (53), the second placement channel (61) and the spiral channel (21) are connected; the inner diameters of the first placement channel (53) and the spiral channel (21) are consistent and the same as the outer diameter of the pipe to be produced.

3. A sizing sleeve with good cooling effect according to claim 2, characterized in that: The first water ring (5) comprises an integrally formed connecting portion (51) and a cooling portion (52); a step structure (62) is provided inside the second water ring (6); the step structure (62) matches the shape of the connecting portion (51) of the first water ring (5); a certain distance is provided between the outer wall of the cooling portion (52) and the inner wall of the second water ring (6) to form a water storage cavity (7); and a plurality of second water inlets (8) are provided inside the second water ring (6) and are in communication with the water storage cavity (7).

4. A sizing sleeve with good cooling effect according to claim 3, characterized in that: The first water ring (5) is provided with a plurality of cooling channels (54), and two ends of the cooling channels (54) are respectively connected to the first placement channel (53) and the water storage cavity (7).

5. A sizing sleeve with good cooling effect according to claim 2, characterized in that: The second water ring (6) is provided with a water ring cover plate (9), the water ring cover plate (9) is provided with a feed channel (92), and the first placement channel (53), the second placement channel (61) and the feed channel (92) are connected and their inner diameters increase successively.

6. A sizing sleeve with good cooling effect according to claim 5, characterized in that: There is a certain distance between the inner wall of the cover plate connecting portion (91) of the water ring cover plate (9) and the second water ring (6), and an annular water film (10) is formed. The second water ring (6) is provided with a plurality of first water inlets (11) connected to the annular water film (10).

7. A sizing sleeve with good cooling effect according to claim 1, characterized in that: The flange (1) is provided with a plurality of vacuum box connection holes (12).

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