Special-shaped steel pipe drawing device

Abstract

The utility model discloses a special-shaped steel pipe drawing device which comprises a machine frame, a replaceable drawing die assembly is arranged in the middle of the machine frame, a feeding mechanism located on the machine frame is arranged on the feeding side of the replaceable drawing die assembly, and a drawing mechanism located on the machine frame is arranged at an outlet of the replaceable drawing die assembly. The replaceable drawing die assembly comprises a sliding rail located in the middle of the rack, a die conveying belt parallel to the rack is arranged on the front side of the sliding rail, a plurality of die sliding conveying seats are arranged on the die conveying belt, drawing dies are arranged on the die sliding conveying seats, and a pushing mechanism corresponding to the sliding rail in position is arranged on the front side of the die conveying belt. A backstop mechanism is further arranged on the rear side of the sliding rail; a lifting type stop pin mechanism is arranged below the sliding rail. The utility model has the characteristic of convenience in replacement.

Description

Technical Field

[0001] The utility model relates to the field of steel pipe drawing, in particular to a special-shaped steel pipe drawing device. Background Art

[0002] Drawing is one of the main production methods for pipes, bars, profiles and wires; according to the cross-sectional shape of the product, drawing can be divided into two categories: solid material drawing and hollow material drawing. Drawing steel pipes is a plastic processing method that applies tension to the steel pipe blank to make it pass through the die hole to obtain a product with the same cross-sectional size and shape as the die hole. Special-shaped steel pipes are obtained by drawing the steel pipe using a special-shaped drawing die. Since there are many shapes of special-shaped steel pipes, each time a special-shaped steel pipe of the corresponding shape needs to be drawn, the drawing die needs to be disassembled and hoisted, and then a new special-shaped drawing die needs to be reinstalled and debugged. The replacement process is very troublesome and the efficiency is extremely low. Therefore, the existing technology has the problem of troublesome replacement. Utility Model Content

[0003] The purpose of the utility model is to provide a special-shaped steel pipe drawing device. The utility model has the characteristic of easy replacement.

[0004] The technical solution of the utility model is as follows: a special-shaped steel pipe drawing device comprises a frame, a replaceable drawing die assembly is provided in the middle of the frame, a feeding mechanism located on the frame is provided on the feed side of the replaceable drawing die assembly, and a drawing mechanism located on the frame is provided at the outlet of the replaceable drawing die assembly; the replaceable drawing die assembly comprises a slide rail located in the middle of the frame, a die conveyor belt parallel to the frame is provided on the front side of the slide rail, a plurality of die slide seats are provided on the die conveyor belt, a drawing die is provided on the die slide seat, a pushing mechanism corresponding to the position of the slide rail is provided on the front side of the die conveyor belt, and a stop mechanism is also provided on the rear side of the slide rail; a lifting stop pin mechanism is provided under the slide rail.

[0005] In the aforementioned special-shaped steel pipe drawing device, the slide rail is a T-shaped slide rail, and a first pin hole is provided at the front and rear ends of the slide rail; the drawing die includes a base, a die body is provided above the base, a corresponding T-shaped slide groove is provided on the lower surface of the base, and corresponding second pin holes are provided at the front and rear ends of the base.

[0006] In the aforementioned special-shaped steel pipe drawing device, the pushing mechanism includes a pushing cylinder located in front of the mold conveyor belt, a pushing pressure plate is provided at the output end of the pushing cylinder, and pushing side plates are provided at both ends of the pushing pressure plate.

[0007] In the aforementioned special-shaped steel pipe drawing device, a QR code scanner is also provided above the pushing pressure plate, and a QR code is provided on the base.

[0008] In the aforementioned special-shaped steel pipe drawing device, the lifting stop pin mechanism includes a lifting cylinder located below the frame, a base plate is provided above the lifting cylinder, and corresponding pin shafts are provided on the front and rear sides above the base plate.

[0009] In the aforementioned special-shaped steel pipe drawing device, the stop mechanism includes a stop pushing cylinder located at the rear side of the frame, a stop plate is provided at the output end of the stop pushing cylinder, and side baffles are provided at both ends of the stop plate.

[0010] Compared with the prior art, the present invention is composed of a frame, a replaceable drawing die assembly, a feeding mechanism and a drawing mechanism. By setting up a replaceable drawing die assembly, the replacement of the drawing can be greatly facilitated and the replacement efficiency can be improved. Specifically, the replaceable drawing die of the present application is composed of a slide rail located in the middle of the frame, a mold conveyor belt located in front of the slide rail, a mold slide seat, a drawing die, a pushing mechanism located in front of the mold conveyor belt, and a stop mechanism located on the rear side of the slide rail. Through the mutual cooperation of the above structures, the drawing die can be replaced quickly and accurately without debugging and can be put into use immediately. In summary, the present invention has the characteristic of convenient replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 It is a side sectional view of the lifting stop pin mechanism.

[0013] The marks in the accompanying drawings are: 1-frame, 2-replaceable drawing die assembly, 3-feeding mechanism, 4-drawing mechanism, 201-slide rail, 202-die conveyor belt, 203-die slide seat, 204-drawing die, 205-pushing mechanism, 206-stop mechanism, 207-lifting stop pin mechanism, 208-first pin hole, 241-base, 242-die body, 243-T-type slide, 244-second pin hole, 251-pushing cylinder, 252-pushing pressure plate, 253-pushing side plate, 271-lifting cylinder, 272-base plate, 273-pin shaft, 261-stop pushing cylinder, 262-stop plate, 263-side baffle. DETAILED DESCRIPTION

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0015] Example. A device for drawing special-shaped steel pipes is constructed as follows Figure 1-2As shown, it includes a frame 1, a replaceable drawing die assembly 2 is provided in the middle of the frame 1, a feeding mechanism 3 located on the frame 1 is provided on the feed side of the replaceable drawing die assembly 2, and a drawing mechanism 4 located on the frame 1 is provided at the outlet of the replaceable drawing die assembly 2; the replaceable drawing die assembly 2 includes a slide rail 201 located in the middle of the frame 1, a mold conveyor belt 202 parallel to the frame 1 is provided on the front side of the slide rail 201, a plurality of mold sliding seats 203 are provided on the mold conveyor belt 202, a drawing mold 204 is provided on the mold sliding seat 203, a pushing mechanism 205 corresponding to the position of the slide rail 201 is provided on the front side of the mold conveyor belt 202, and a stop mechanism 206 is also provided on the rear side of the slide rail 201; a lifting stop pin mechanism 207 is provided below the slide rail 201.

[0016] The slide rail 201 is a T-shaped slide rail, and a first pin hole 208 is provided at the front and rear ends of the slide rail; the drawing die 204 includes a base 241, a die body 242 is provided above the base 241, a corresponding T-shaped slide groove 243 is provided on the lower surface of the base 241, and corresponding second pin holes 244 are provided at the front and rear ends of the base 241.

[0017] The pushing mechanism 205 includes a pushing cylinder 251 located in front of the mold conveyor belt 202 . A pushing pressure plate 252 is provided at the output end of the pushing cylinder 251 . Pushing side plates 253 are provided at both ends of the pushing pressure plate 252 .

[0018] A QR code scanner is also provided above the pushing plate 252 , and a QR code is provided on the base 241 .

[0019] The lifting stop pin mechanism 207 includes a lifting cylinder 271 located below the frame 1 , a base plate 272 is provided above the lifting cylinder 271 , and corresponding pin shafts 273 are provided on the front and rear sides above the base plate 272 .

[0020] The stopping mechanism 206 includes a stopping pushing cylinder 261 located at the rear side of the frame 1 , a stopping plate 262 is provided at the output end of the stopping pushing cylinder 261 , and side baffles 263 are provided at both ends of the stopping plate 262 .

[0021] The mold slide is also equipped with a T-shaped slide rail. The mold slide is also embedded with a magnet that cooperates with the iron drawing mold base to ensure stable installation and prevent deviation.

[0022] The inner wall of the pin shaft is provided with an axial groove, and the outer wall of the pin shaft is provided with an axial positioning strip, which can further improve the stability and firmness.

[0023] By setting T-shaped slide grooves and T-shaped slide rails, both the accuracy of sliding and the reliability of connection can be guaranteed.

[0024] The feeding mechanism includes a base plate fixed to the frame, a feeding roller assembly disposed above the base plate, a propulsion cylinder disposed at the end of the base plate, and a push-and-release fixture disposed at the output end of the propulsion cylinder. The push-and-release fixture includes a push-and-release plate, a top plate disposed above the side of the push-and-release plate, a telescopic rod disposed below the top plate, an arc-shaped clamp disposed below the telescopic rod, and a spring sleeved on the telescopic rod.

[0025] The drawing mechanism includes a chain moving mechanism, and a drawing head is provided above the chain moving mechanism for drawing the steel pipe.

[0026] A lubricating oil coating mechanism is also provided above the feeding mechanism.

[0027] The drawing die replacement process: The drawing die to be used is moved to the push mechanism position. The QR code scanner scans the QR code on the base. Once the information matches, the push mechanism starts working, pushing the drawing die into the slide rail in the middle of the frame until it contacts the stop plate. The lifting cylinder then works to insert the pin from bottom to top into the second pin hole at the bottom of the T-shaped slide, the first pin hole of the slide rail, and the second pin hole at the top of the T-shaped slide on the base, completing the fixation. The push pressure plate and push side plates are fixed to the front side of the drawing die base, and the stop plate and side baffles are fixed to the back side of the drawing die base to ensure the stability of the drawing die during the drawing operation.

[0028] When replacement is required, the pushing pressure plate and the pushing side plate are reset, the pin shaft is reset, and the stop plate pushes the drawing die to reset under the action of the stop pushing cylinder.

[0029] The working process of the utility model is as follows: first, according to the shape of the drawing to be required, the drawing die of the corresponding shape is replaced to the slide rail in the middle of the frame, the stop positioning is performed by the stop mechanism, and the limit fixing is performed by the lifting stop pin mechanism. Then the steel pipe to be drawn (after pre-treatment and lubricating oil coating) is placed on the feeding roller group of the feeding mechanism, and the propulsion cylinder pushes the steel pipe into the drawing die until its end is exposed to the drawing die by 20-30 cm. The drawing mechanism clamps the end of the steel pipe for drawing until the drawing of the entire pipe is completed.

Claims

1. Special-shaped steel pipe drawing device, characterized by: The invention comprises a frame (1), a replaceable drawing die assembly (2) is provided in the middle of the frame (1), a feeding mechanism (3) located on the frame (1) is provided on the feeding side of the replaceable drawing die assembly (2), and a drawing mechanism (4) located on the frame (1) is provided at the outlet of the replaceable drawing die assembly (2); the replaceable drawing die assembly (2) comprises a slide rail (201) located in the middle of the frame (1), and a front side of the slide rail (201) is provided with a parallel plate parallel to the frame (1). A mold conveyor belt (202) is arranged in a row, a plurality of mold slide seats (203) are provided on the mold conveyor belt (202), a drawing mold (204) is provided on the mold slide seat (203), a pushing mechanism (205) corresponding to the position of the slide rail (201) is provided on the front side of the mold conveyor belt (202), and a stop mechanism (206) is also provided on the rear side of the slide rail (201); and a lifting stop pin mechanism (207) is provided below the slide rail (201).

2. The special-shaped steel pipe drawing device according to claim 1, characterized in that: The slide rail (201) is a T-shaped slide rail, and a first pin hole (208) is provided at the front and rear ends of the slide rail; the drawing die (204) includes a base (241), a die body (242) is provided above the base (241), a corresponding T-shaped slide groove (243) is provided on the lower surface of the base (241), and corresponding second pin holes (244) are provided at the front and rear ends of the base (241).

3. The special-shaped steel pipe drawing device according to claim 2, characterized in that: The pushing mechanism (205) comprises a pushing cylinder (251) located in front of the mold conveyor belt (202), a pushing pressure plate (252) is provided at the output end of the pushing cylinder (251), and pushing side plates (253) are provided at both ends of the pushing pressure plate (252).

4. The special-shaped steel pipe drawing device according to claim 3, characterized in that: A two-dimensional code scanner is also provided above the pushing plate (252), and a two-dimensional code is provided on the base (241).

5. The special-shaped steel pipe drawing device according to claim 1, characterized in that: The lifting stop pin mechanism (207) comprises a lifting cylinder (271) located below the frame (1); a base plate (272) is provided above the lifting cylinder (271); and corresponding pin shafts (273) are provided on the front and rear sides above the base plate (272).

6. The special-shaped steel pipe drawing device according to claim 1, characterized in that: The stop mechanism (206) comprises a stop pushing cylinder (261) located at the rear side of the frame (1); a stop plate (262) is provided at the output end of the stop pushing cylinder (261); and side baffles (263) are provided at both ends of the stop plate (262).

Images