A high-speed wear-resistant sizing sleeve for winding pipes

Abstract

The utility model discloses a kind of for winding pipe high-speed wear-resistant type sizing sleeve, it is related to winding pipe production equipment technical field, including cooling copper base, one end of cooling copper base is installed on extrusion die head, the other end of cooling copper base is fixedly installed with connecting disc, connecting disc is fixedly installed with four groups of disc screw rod of annular array distribution in the side away from cooling copper base, several forming disc are installed on disc screw rod, the installation interval of forming disc from the side close to connecting disc to the side away from connecting disc increases sequentially;The utility model changes the boss shape of cooling copper base, so that transition disc does not contact with raw material, reduces replacement frequency;Meanwhile, forming disc uses high carbon steel to carry out hardness treatment, increases self hardness, contact surface carries out polishing treatment, improves service life.

Description

Technical Field

[0001] This utility model relates to the technical field of spiral wound tube production equipment, and in particular to a high-speed wear-resistant sizing sleeve for spiral wound tubes. Background Technology

[0002] Currently, with the increase in PE spiral wound pipe production capacity, after entering the sizing sleeve from the extrusion die, the increased linear speed causes the raw material to rub against the flange and disc for a long time, resulting in greater wear and larger dimensions. This leads to a larger square tube structure, requiring replacement after a period of production, resulting in low processing efficiency. Furthermore, during high-speed production, there is a large amount of precipitate, which can easily clog the hollow parts of the sizing sleeve, affecting the appearance of the pipe. Utility Model Content

[0003] This invention provides a high-speed wear-resistant sizing sleeve for spiral wound tubes, which can solve the problem of low processing efficiency in the prior art where sizing sleeves need to be replaced after a period of production.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A high-speed wear-resistant sizing sleeve for spiral wound tubes includes a cooling copper seat. One end of the cooling copper seat is mounted on an extrusion die head, and a connecting plate is fixedly mounted on the other end of the cooling copper seat. Four sets of disc screws arranged in a circular array are fixedly mounted on the side of the connecting plate away from the cooling copper seat. Several forming discs are mounted on the disc screws, and the installation spacing of the forming discs increases sequentially from the side closer to the connecting plate to the side farther away from the connecting plate.

[0006] Preferably, the cooling copper base includes a copper base body, a molded copper sleeve is fixedly disposed on the inner side of the copper base body, an extrusion through hole is disposed in the molded copper sleeve, and an arc groove communicating with the extrusion through hole is disposed on the side of the copper base body away from the molded copper sleeve. The arc groove facilitates the extrusion of plastic into the extrusion through hole.

[0007] Preferably, a cooling ring groove is provided between the copper base body and the formed copper sleeve, and a plurality of water guide holes connected to the cooling ring groove are provided on the side wall of the copper base body. The water guide holes are connected to an external water cooling device through water pipes.

[0008] Preferably, one side of the copper base body is provided with a plurality of front connection holes that are bolted to the extrusion die head, and the other side of the copper base body is provided with a plurality of rear connection holes that are bolted to the connecting plate.

[0009] Preferably, the end of the formed copper sleeve extends out of the copper base body, and the length of the formed copper sleeve extending out of the copper base body is greater than the thickness of the connecting plate.

[0010] Preferably, a sealing gasket is provided between the cooling copper base and the connecting plate.

[0011] Preferably, the connecting plate includes a disc plate, the disc plate having a plurality of external mounting holes on its surface near the outer periphery, a copper sleeve hole for cooperating with a shaped copper sleeve at the center of the disc plate, and a plurality of countersunk holes for mounting a cooling copper seat to a cooling copper seat by bolts and four screw holes for mounting a disc screw.

[0012] Preferably, the molded disc is a rectangular metal plate, and each of the four corners of the molded disc is provided with a screw hole that slides with the disc screw, and the center of the molded disc is provided with a molding hole.

[0013] Preferably, the disc screw is equipped with multiple adjusting components, which are located between adjacent formed discs to adjust the distance between them.

[0014] Preferably, the adjusting component includes a lead screw sleeve, the inner circumference of which is provided with an internal threaded hole that mates with the disc lead screw, one side of which is provided with an annular threaded hole, an adjusting sleeve is threadedly connected to the annular threaded hole, and a top pressure ring plate is fixedly provided on the side of the adjusting sleeve away from the lead screw sleeve.

[0015] The beneficial effects of this utility model are:

[0016] (1) The cooling copper base is modified into a boss shape so that the transition plate does not come into contact with the raw material, reducing the number of replacements; at the same time, the forming disc is made of high carbon steel for hardening treatment to increase its own hardness, and the contact surface is polished to improve its service life.

[0017] (2) The molded disc is made of 45# high-carbon steel, and its surface has undergone hardening treatment to achieve a surface hardness of HRC50-55. The contact surface is polished, and the surface roughness Ra≤0.8μm. 45# high-carbon steel has high hardness and wear resistance. After hardening treatment, the hardness and wear resistance of the molded disc are further improved, enabling it to withstand the friction of raw materials during high-speed production. Polishing treatment makes the contact surface of the molded disc smoother, reduces friction with the raw materials, reduces wear, and extends the service life of the molded disc. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of a high-speed wear-resistant sizing sleeve for spiral wound tubes according to this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of a high-speed wear-resistant sizing sleeve for spiral wound tubes according to this utility model;

[0021] Figure 3This is a schematic diagram of the main structure of a high-speed wear-resistant sizing sleeve for spiral wound tubes according to this utility model.

[0022] Figure 4 This is a three-dimensional structural diagram of the cooling copper base of this utility model;

[0023] Figure 5 This is an isometric structural schematic diagram of the cooling copper base of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the connecting disc of this utility model;

[0025] Figure 7 This is a cross-sectional structural schematic diagram of the adjusting component of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Cooling copper base; 11. Copper base body; 12. Formed copper sleeve; 13. Arc groove; 14. Cooling ring groove; 15. Water guide hole; 16. Rear connection hole; 17. Front connection hole; 2. Connecting plate; 21. Disc plate; 22. External mounting hole; 23. Copper sleeve hole; 24. Lead screw hole; 25. Copper base countersunk hole; 3. Disc lead screw; 4. Formed disc; 41. Formed hole; 42. Lead screw hole; 5. Adjusting component; 51. Lead screw sleeve; 52. Internal threaded hole; 53. Annular threaded hole; 54. Adjusting sleeve; 55. Top pressure ring plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Please see Figures 1-7 As shown, this utility model is a high-speed wear-resistant sizing sleeve for winding tubes, including a cooling copper seat 1. One end of the cooling copper seat 1 is installed on the extrusion die head, and a connecting plate 2 is fixedly installed on the other end of the cooling copper seat 1. Four sets of disc screws 3 arranged in a ring array are fixedly installed on the side of the connecting plate 2 away from the cooling copper seat 1. Several forming discs 4 are installed on the disc screws 3. The installation spacing of the forming discs 4 increases sequentially from the side closer to the connecting plate 2 to the side farther away from the connecting plate 2.

[0032] In an optional embodiment, the cooling copper base 1 includes a copper base body 11, a molded copper sleeve 12 is fixedly disposed on the inner side of the copper base body 11, an extrusion through hole is disposed in the molded copper sleeve 12, and an arc groove 13 communicating with the extrusion through hole is disposed on the side of the copper base body 11 away from the molded copper sleeve 12. The arc groove 13 facilitates the extrusion of plastic into the extrusion through hole.

[0033] It should be noted that the circular arc groove 13 optimizes the material flow path, reduces extrusion resistance, and improves production efficiency.

[0034] In an optional embodiment, a cooling ring groove 14 is provided between the copper base body 11 and the formed copper sleeve 12, and a plurality of water guide holes 15 connected to the cooling ring groove 14 are provided on the side wall of the copper base body 11. The water guide holes 15 are connected to an external water cooling device through water pipes.

[0035] It should be noted that the cooling ring groove 14 and the water guide hole 15 constitute a high-efficiency cooling system, which reduces the temperature of raw materials and reduces equipment wear and pipe defects.

[0036] In an optional embodiment, one side of the copper base body 11 is provided with a plurality of front connection holes 17 for mounting to the extrusion die head by bolts, and the other side of the copper base body 11 is provided with a plurality of rear connection holes 16 for mounting to the connecting plate 2 by bolts.

[0037] It should be noted that the modular design of the front connecting hole 17 and the rear connecting hole 16 facilitates quick assembly and disassembly, shortens maintenance time, and improves production continuity.

[0038] In an optional embodiment, the end of the molded copper sleeve 12 extends out of the copper base body 11, and the length of the molded copper sleeve 12 extending out of the copper base body 11 is greater than the thickness of the connecting plate 2, so that the connecting plate 2 does not come into contact with the raw material, reducing the replacement frequency and improving the service life.

[0039] It should be noted that the molded copper sleeve 12 prevents the connecting disc 2 from coming into contact with high-temperature raw materials, thereby reducing the wear rate and extending the service life of the connecting disc.

[0040] In an optional embodiment, the cooling copper seat 1 adopts a boss-shaped design with a boss height of 10-15mm. This boss design prevents the connecting plate 3 from directly contacting the raw material, reducing wear on the connecting plate 3. In traditional sizing sleeves, the connecting plate 3 may rub against the raw material, leading to severe wear and frequent replacement. The boss design of this invention effectively avoids this problem, reduces the wear rate of the connecting plate 3, reduces the number of replacements, thereby reducing labor costs and improving production efficiency.

[0041] In an optional embodiment, a sealing gasket is provided between the cooling copper base 1 and the connecting plate 2.

[0042] It should be noted that the sealing gasket plays a sealing role, preventing raw materials from entering the gap between the connecting plate 2 and the cooling copper seat 1, and ensuring the normal operation of the sizing sleeve.

[0043] In an optional embodiment, the connecting plate 2 includes a disc plate 21. The disc plate 21 has several external mounting holes 22 on its surface near the outer periphery. The center of the disc plate 21 has a copper sleeve hole 23 that mates with the formed copper sleeve 12. The disc plate 21 has multiple countersunk holes 25 for mounting the cooling copper seat 1 with bolts and four screw holes 24 for mounting the disc screw 3.

[0044] In an optional embodiment, the molded disc 4 is a rectangular metal plate, and each of the four corners of the molded disc 4 is provided with a screw hole 42 that slides with the disc screw 3, and the center of the molded disc 4 is provided with a molding hole 41.

[0045] It should be noted that the rectangular structure of the forming disc 4 enhances rigidity, the lead screw hole 42 ensures smooth sliding, and the forming hole 41 precisely controls the tube dimensions. The forming disc 4 is made of 45# high-carbon steel, and its surface has undergone hardening treatment, achieving a surface hardness of HRC50-55. The contact surface is polished, with a surface roughness Ra≤0.8μm. 45# high-carbon steel possesses high hardness and wear resistance. After hardening treatment, the hardness and wear resistance of the forming disc 4 are further improved, enabling it to withstand the friction of raw materials during high-speed production. Polishing makes the contact surface of the forming disc 4 smoother, reducing friction with the raw materials, lowering wear, and extending the service life of the forming disc 4.

[0046] In an optional embodiment, a plurality of adjusting members 5 are mounted on the disc screw 3, the adjusting members 5 being located between adjacent molded discs 4 to adjust the distance between adjacent molded discs 4.

[0047] It should be noted that the adjusting component 5 enables stepless adjustment of the disc spacing, adapting to the production of various pipe specifications.

[0048] In an optional embodiment, the adjusting member 5 includes a lead screw sleeve 51, the inner circumference of which is provided with an internal threaded hole 52 that cooperates with the disc lead screw 3, one side of which is provided with an annular threaded hole 53, an adjusting sleeve 54 is threadedly connected to the annular threaded hole 53, and a top pressure ring plate 55 is fixedly provided on the side of the adjusting sleeve 54 away from the lead screw sleeve 51.

[0049] It should be noted that the top pressure ring plate 55 ensures the stability of the disc after adjustment and improves the quality of pipe forming.

[0050] The working principle of this utility model is as follows: Plastic raw material is extruded from the extrusion die and enters the inner side of the copper seat body 11 of the cooling copper seat 1. The extrusion through-hole in the forming copper sleeve 12 initially shapes the raw material, and the arc groove 13 guides the raw material smoothly into the through-hole, reducing extrusion resistance. The external water cooling equipment delivers cooling water to the cooling ring groove 14 through the water guide hole 15 to absorb the heat generated by friction during the raw material extrusion process, reduce the temperature to reduce the blockage of the sizing sleeve by precipitates, and improve the appearance quality of the pipe. The connecting plate 2 is fixed to the cooling copper seat 1 through the rear connecting hole 16, and the disc screws 3 are distributed in a ring array on the surface of the connecting plate 2. The forming discs 4 are arranged along the screws 3, and the spacing increases from the side closer to the connecting plate 2 to the side farther away, to adapt to the forming requirements of different positions of the winding pipe. The adjusting component 5 precisely adjusts the disc spacing through the screw sleeve 51 and the adjusting sleeve 54, and the top pressure ring plate 55 ensures the stability after adjustment. The length of the forming copper sleeve 12 extending out of the copper seat body 11 is greater than the thickness of the connecting plate 2, so that the connecting plate 2 does not directly contact the raw material, reducing friction and wear. Sealing gasket 6 prevents cooling water leakage and ensures stable system operation.

[0051] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A high-speed wear-resistant sizing sleeve for wound tubes, characterized in that, The device includes a cooling copper base (1), one end of which is mounted on an extrusion die head, and a connecting plate (2) is fixedly mounted on the other end of the cooling copper base (1). Four sets of disc screws (3) arranged in a ring array are fixedly mounted on the side of the connecting plate (2) away from the cooling copper base (1). Several forming discs (4) are mounted on the disc screws (3). The installation spacing of the forming discs (4) increases sequentially from the side closer to the connecting plate (2) to the side away from the connecting plate (2).

2. The high-speed wear-resistant sizing sleeve for wound tubes according to claim 1, characterized in that, The cooling copper base (1) includes a copper base body (11), a molded copper sleeve (12) is fixedly provided on the inner side of the copper base body (11), an extrusion through hole is provided in the molded copper sleeve (12), and an arc groove (13) connected to the extrusion through hole is provided on the side of the copper base body (11) away from the molded copper sleeve (12).

3. A high-speed wear-resistant sizing sleeve for wound tubes according to claim 2, characterized in that, A cooling ring groove (14) is provided between the copper base body (11) and the formed copper sleeve (12). The side wall of the copper base body (11) is provided with a plurality of water guide holes (15) that communicate with the cooling ring groove (14). The water guide holes (15) are connected to external water cooling equipment through water pipes.

4. A high-speed wear-resistant sizing sleeve for wound tubes according to claim 2, characterized in that, The copper base body (11) has a plurality of front connection holes (17) on one side that are bolted to the extrusion die head, and a plurality of rear connection holes (16) on the other side that are bolted to the connecting plate (2).

5. A high-speed wear-resistant sizing sleeve for wound tubes according to claim 2, characterized in that, The end of the molded copper sleeve (12) extends out of the copper base body (11), and the length of the molded copper sleeve (12) extending out of the copper base body (11) is greater than the thickness of the connecting plate (2).

6. A high-speed wear-resistant sizing sleeve for wound tubes according to claim 1, characterized in that, A sealing gasket is provided between the cooling copper base (1) and the connecting plate (2).

7. A high-speed wear-resistant sizing sleeve for wound tubes according to claim 1, characterized in that, The connecting plate (2) includes a disc plate (21). The disc plate (21) has several external mounting holes (22) on its outer periphery. The center of the disc plate (21) has a copper sleeve hole (23) that mates with the formed copper sleeve (12). The disc plate (21) has several countersunk holes (25) for mounting the cooling copper seat (1) with bolts and four screw holes (24) for mounting the disc screw (3).

8. A high-speed wear-resistant sizing sleeve for wound tubes according to any one of claims 1-7, characterized in that, The molded disc (4) is a rectangular metal plate. Each of the four corners of the molded disc (4) is provided with a screw hole (42) that slides with the disc screw (3). The center of the molded disc (4) is provided with a molding hole (41).

9. A high-speed wear-resistant sizing sleeve for wound tubes according to claim 8, characterized in that, The disc screw (3) is equipped with multiple adjusting components (5), which are located between adjacent molded discs (4) to adjust the distance between them.

10. A high-speed wear-resistant sizing sleeve for wound tubes according to claim 9, characterized in that, The adjusting component (5) includes a lead screw sleeve (51), the inner circumference of which is provided with an internal threaded hole (52) that cooperates with the disc lead screw (3), one side of which is provided with an annular threaded hole (53), an adjusting sleeve (54) is threadedly connected to the annular threaded hole (53), and a top pressure ring plate (55) is fixedly provided on the side of the adjusting sleeve (54) away from the lead screw sleeve (51).

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