Pipe welding extrusion die

Abstract

This utility model relates to a welded pipe extrusion die. The first extrusion die includes a support base, with an extrusion plate (first) for extruding the welded pipe mounted on the upper end of the support base. The second extrusion die includes a limiting cylinder for positioning the welded pipe, and multiple extrusion components for protecting the welded pipe are mounted on the outside of the limiting cylinder. By rotating the long rod with a handle, the limiting disc rotates, causing the slider to slide within the guide groove. Guided by the guide groove, the second extrusion plate moves away from or closer to the outer wall of the cylinder, facilitating the protection of welded pipes of different diameters. Rotating the knob causes a reciprocating screw (second) and a screw nut (second) to clamp the long rod with two clamping plates, preventing the long rod from rotating and ensuring that the second extrusion plate always protects the welded pipe.

Description

Technical Field

[0001] This utility model relates to the field of extrusion die technology, and in particular to a welded pipe extrusion die. Background Technology

[0002] Welded pipes are steel pipes made by rolling steel plates or strips into shape and then welding them. Welded pipe extrusion dies are used after the steel pipes are welded, and their main function is to extrude the pipes to ensure the quality and shape of the weld.

[0003] For example, Chinese patent application CN202020100382.6 discloses a welded pipe extrusion die for welding thick-walled welded pipes. Specifically, a second rotating wheel is installed on the lower side of the outer wall of the lead screw, near the first rotating wheel. A belt is fitted between the outer wall of the second rotating wheel and the outer wall of the first rotating wheel. A motor drives the first rotating wheel to rotate, and then the first rotating wheel drives the second rotating wheel to rotate via the belt, causing the lead screw to rotate and move the movable sleeve up and down. This causes the support column to move the extrusion column up and down to extrude the workpiece. However, this method has the following technical problems:

[0004] When the welded pipe is extruded, the extrusion column presses downwards onto the pipe, which can easily cause deformation and tearing of the weld. Utility Model Content

[0005] To address the problem of welded pipes being prone to deformation as mentioned in the background section, this utility model provides the following technical solution:

[0006] A welded pipe extrusion die, comprising a first extrusion die;

[0007] A second extrusion die for limiting the welded pipe is installed at the upper end of the first extrusion die.

[0008] The first extrusion die includes a support base, and an extrusion plate for extruding the welded pipe is installed on the upper end of the support base. The second extrusion die includes a limiting cylinder for limiting the welded pipe, and multiple extrusion components for protecting the welded pipe are installed on the outside of the limiting cylinder.

[0009] A vertical plate is installed at one end of the limiting cylinder, and a reciprocating screw for controlling the up and down movement of the limiting cylinder is installed in the middle of the vertical plate.

[0010] Furthermore, a limiting plate for limiting the welded pipe is installed at the upper end of the support base, and a cylinder for controlling the extrusion plate to move up and down is installed at the upper end of the extrusion plate.

[0011] Furthermore, the limiting cylinder includes a cylinder body, and a screw nut is installed at the right end of the cylinder body to cooperate with a reciprocating screw to control the cylinder body to move up and down, and a handwheel is installed at the upper end of the reciprocating screw.

[0012] Furthermore, the outer wall of the cylinder is provided with multiple slots for limiting the extrusion assembly, the left end of the cylinder is provided with multiple threaded holes, and the interior of the cylinder is equipped with an adjustment assembly for guiding the extrusion assembly.

[0013] Furthermore, the adjustment assembly includes a long rod with a handle installed at the left end, and multiple limiting discs installed in the middle of the rod body. Multiple guide grooves are provided on the side wall of the left side of the limiting discs.

[0014] Furthermore, the extrusion assembly includes an extrusion plate two for contacting the inner wall of the welded pipe, a connecting block one is installed on the inner side of the extrusion plate two, a plurality of connecting blocks two are installed on the lower end of the connecting block one, and a slider for sliding in the cavity of the guide groove is installed on the right end of the connecting block two.

[0015] Furthermore, a limiting component for limiting the extrusion assembly is installed at the left end of the limiting cylinder. The limiting component includes a fixed plate. Multiple inserts for limiting the connecting block are installed on the right side of the fixed plate. Multiple bolts for limiting the fixed plate are installed in the middle of the fixed plate and have mating threaded holes.

[0016] Furthermore, two clamping plates for clamping the long rod are installed on the left side of the fixed plate, and a second lead screw nut is installed at the lower end of the clamping plates. A second reciprocating lead screw for controlling the movement of the second lead screw nut is installed on the left side of the fixed plate, and a knob is installed at one end of the second reciprocating lead screw.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] By rotating the long rod by holding the handle, the limiting plate rotates, causing the slider to slide within the guide groove. Guided by the guide groove, the extrusion plate moves away from or closer to the outer wall of the cylinder, thus protecting welded pipes of different diameters. By rotating the knob, the reciprocating screw and screw nut drive the two clamping plates to clamp the long rod, preventing it from rotating and ensuring that the extrusion plate always protects the welded pipe. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the first extrusion die of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the second extrusion die of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the limiting cylinder of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0024] Figure 6 This is a schematic diagram of the extrusion assembly of this utility model;

[0025] Figure 7 This is a schematic diagram of the limiting component of this utility model.

[0026] The following is a list of component names represented by the reference numerals in the attached figures:

[0027] 001 - First extrusion die;

[0028] 100-Support base, 110-Limit plate, 120-Extrusion plate one, 121-Cylinder;

[0029] 002 - Second extrusion die;

[0030] 200-Limiting cylinder, 210-Cylinder body, 211-Screw nut one, 212-Slot, 213-Threaded hole, 220-Adjusting assembly, 221-Long rod, 222-Handle, 223-Limiting plate, 224-Guide groove;

[0031] 300 - Extrusion assembly, 310 - Extrusion plate two, 311 - Connecting block one, 312 - Connecting block two, 313 - Slider;

[0032] 400 - Vertical plate, 410 - Reciprocating lead screw 1, 411 - Handwheel;

[0033] 003 - Limiting component;

[0034] 500-Fixed plate, 510-Plug, 520-Bolt, 530-Clamping plate, 531-Screw nut II, 540-Reciprocating screw II, 541-Knob. Detailed Implementation

[0035] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0036] Please see Figures 1-7 This utility model provides a welded pipe extrusion die, including a first extrusion die 001, and a second extrusion die 002 for limiting the welded pipe is installed at the upper end of the first extrusion die 001.

[0037] The first extrusion die 001 includes a support base 100. A limiting plate 110 for limiting the welded pipe is fixedly installed on the upper end of the support base 100. During extrusion, the welded pipe is placed on the upper end of the limiting plate 110. An extrusion plate 120 for extruding the welded pipe is installed on the upper end of the support base 100. A cylinder 121 for controlling the extrusion plate 120 to move up and down is installed on the upper end of the extrusion plate 120. By controlling the extrusion plate 120 to move downward through the cylinder 121, the welded pipe on the limiting plate 110 can be extruded.

[0038] The second extrusion die 002 includes a limiting cylinder 200 for limiting the welded pipe. Multiple extrusion components 300 for protecting the welded pipe are installed on the outside of the limiting cylinder 200. When the welded pipe is placed on the upper end of the limiting plate 110, the limiting cylinder 200 and the extrusion components 300 are located in the middle hole of the welded pipe, so that the extrusion components 300 and the inner wall of the welded pipe can fit together to protect the welded pipe and prevent the welded pipe from deforming.

[0039] A vertical plate 400 is installed on the right end of the limiting cylinder 200. A reciprocating screw 410 for controlling the up and down movement of the limiting cylinder 200 is installed in the middle of the vertical plate 400, and a handwheel 411 is installed on the upper end of the reciprocating screw 410.

[0040] The limiting cylinder 200 includes a cylinder body 210. A screw nut 211, which works in conjunction with a reciprocating screw 410 to control the vertical movement of the cylinder body 210, is fixedly installed at the right end of the cylinder body 210. Rotation of the handwheel 411 causes the reciprocating screw 410, in conjunction with the screw nut 211, to synchronously move the cylinder body 210 up and down, thus limiting welded pipes of different diameters. This ensures that the lower end of the welded pipe contacts the limiting plate 110, facilitating the extrusion of the welded pipe. The outer wall of the cylinder body 210 has multiple slots 212 for limiting the extrusion assembly 300, and the left end of the cylinder body 210 has multiple threaded holes 213. An adjusting assembly 220 for guiding the extrusion assembly 300 is installed inside the cylinder body 210.

[0041] The adjusting assembly 220 includes a long rod 221, a handle 222 fixedly installed at the left end of the long rod 221, and multiple limiting discs 223 fixedly installed in the middle of the rod body of the long rod 221. The multiple limiting discs 223 are evenly distributed on the rod body of the long rod 221. Multiple guide grooves 224 are opened on the side wall of the left side of the limiting disc 223 to guide the extrusion assembly 300.

[0042] The extrusion assembly 300 includes an extrusion plate 310 for contacting the inner wall of the welded pipe. A connecting block 311 is fixedly installed on the inner side of the extrusion plate 310. Multiple connecting blocks 312 are fixedly installed on the lower end of the connecting block 311. A slider 313 for sliding in the cavity of the guide groove 224 is fixedly installed on the right end of the connecting block 312. By holding the handle 222 and rotating the long rod 221, the limiting plate 223 is rotated, which drives the slider 313 to slide in the cavity of the guide groove 224. Under the guidance of the guide groove 224, the extrusion plate 310 is moved away from or closer to the outer wall of the cylinder 210, so as to protect welded pipes of different diameters.

[0043] The left end of the limiting cylinder 200 is equipped with a limiting component 003 for limiting the extrusion component 300. The limiting component 003 includes a fixing plate 500, which is installed on the left side of the cylinder 210. Multiple inserts 510 for limiting the connecting block 311 are fixedly installed on the right side of the fixing plate 500. The inserts 510 are inserted into the left side of the slot cavity of the slot 212, so that the inserts 510 push the connecting block 311 to the right, so that the slider 313 is always in the cavity of the guide groove 224. Multiple bolts 520 for limiting the fixing plate 500 are installed in the middle of the fixing plate 500 and mating with threaded holes 213. When the bolts 520 are screwed into the cavity of the threaded holes 213, the fixing plate 500 can be fixed on the left side of the cylinder 210.

[0044] Two clamping plates 530 are installed on the left side of the fixed plate 500 to clamp the long rod 221. The two clamping plates 530 are symmetrically arranged front and back. A screw nut 531 is fixedly installed at the lower end of the clamping plate 530. A reciprocating screw 540 is installed on the left side of the fixed plate 500 to control the movement of the screw nut 531. The spiral grooves at the front and rear ends of the reciprocating screw 540 rotate in opposite directions. A knob 541 is fixedly installed at the front end of the reciprocating screw 540. When the extrusion plate 310 is in contact with the inner wall of the welded pipe, the rotation of the knob 541 causes the reciprocating screw 540 to work with the screw nut 531 to drive the two clamping plates 530 to clamp the long rod 221, preventing the long rod 221 from rotating. This ensures that the extrusion plate 310 always protects the welded pipe.

[0045] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A welded pipe extrusion die, comprising a first extrusion die (001), characterized in that: The upper end of the first extrusion die (001) is equipped with a second extrusion die (002) for limiting the welded pipe; The first extrusion die (001) includes a support base (100), and an extrusion plate (120) for extruding the welded pipe is installed on the upper end of the support base (100). The second extrusion die (002) includes a limiting cylinder (200) for limiting the welded pipe, and a plurality of extrusion components (300) for protecting the welded pipe are installed on the outside of the limiting cylinder (200). A vertical plate (400) is installed at one end of the limiting cylinder (200), and a reciprocating screw (410) for controlling the up and down movement of the limiting cylinder (200) is installed in the middle of the vertical plate (400).

2. The welded pipe extrusion die according to claim 1, characterized in that: The upper end of the support base (100) is equipped with a limiting plate (110) for limiting the welded pipe, and the upper end of the extrusion plate (120) is equipped with a cylinder (121) for controlling the extrusion plate (120) to move up and down.

3. The welded pipe extrusion die according to claim 1, characterized in that: The limiting cylinder (200) includes a cylinder body (210), and a screw nut (211) is installed at the right end of the cylinder body (210) to cooperate with the reciprocating screw (410) to control the cylinder body (210) to move up and down. A handwheel (411) is installed at the upper end of the reciprocating screw (410).

4. The welded pipe extrusion die according to claim 3, characterized in that: The outer wall of the cylinder (210) is provided with a plurality of slots (212) for limiting the extrusion assembly (300), the left end of the cylinder (210) is provided with a plurality of threaded holes (213), and the inside of the cylinder (210) is provided with an adjustment assembly (220) for guiding the extrusion assembly (300).

5. The welded pipe extrusion die according to claim 4, characterized in that: The adjustment assembly (220) includes a long rod (221), a handle (222) is installed at the left end of the long rod (221), and a plurality of limiting discs (223) are installed in the middle of the rod body of the long rod (221). A plurality of guide grooves (224) are opened on the side wall of the left side of the limiting disc (223).

6. The welded pipe extrusion die according to claim 5, characterized in that: The extrusion assembly (300) includes an extrusion plate two (310) for contacting the inner wall of the welded pipe. A connecting block one (311) is installed on the inner side of the extrusion plate two (310). A plurality of connecting blocks two (312) are installed at the lower end of the connecting block one (311). A slider (313) for sliding in the groove cavity of the guide groove (224) is installed at the right end of the connecting block two (312).

7. The welded pipe extrusion die according to claim 6, characterized in that: The left end of the limiting cylinder (200) is equipped with a limiting component (003) for limiting the extrusion assembly (300). The limiting component (003) includes a fixed plate (500). On the right side of the fixed plate (500), a plurality of inserts (510) for limiting the connecting block (311) are installed. In the middle of the fixed plate (500), a plurality of bolts (520) with mating threaded holes (213) are installed to limit the fixed plate (500).

8. The welded pipe extrusion die according to claim 7, characterized in that: Two clamping plates (530) for clamping the long rod (221) are installed on the left side of the fixed plate (500). A second lead screw nut (531) is installed at the lower end of the clamping plate (530). A second reciprocating lead screw (540) for controlling the movement of the second lead screw nut (531) is installed on the left side of the fixed plate (500). A knob (541) is installed at one end of the second reciprocating lead screw (540).

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