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CN-121988656-A - Automatic feeding and discharging circular tube double-head flattening die

CN121988656ACN 121988656 ACN121988656 ACN 121988656ACN-121988656-A

Abstract

The invention discloses an automatic feeding and discharging round pipe double-head flattening die, which relates to the technical field of machine manufacturing, and comprises an upper die device and a lower die device which are arranged up and down, wherein the lower die device comprises a lower die assembly, a flat head assembly and a feeding and discharging assembly, the feeding and discharging assembly comprises a pushing mechanism, a lifting mechanism and a chute mechanism, the pushing mechanism is arranged at the middle upper part of the middle part of the lower die assembly, the lifting mechanism is arranged at the lower part of the middle and rear part of the pushing mechanism, and the chute mechanism is arranged at two sides of the middle part of the lower die assembly.

Inventors

  • JIANG JIASHEN
  • Feng Gangzhi
  • JIANG GUOFU
  • HUANG JIANGUO
  • JIANG YOUMING

Assignees

  • 祁阳宏泰铝业有限公司

Dates

Publication Date
20260508
Application Date
20260410

Claims (10)

  1. 1. The double-end flattening die for the automatic feeding and discharging round pipe comprises an upper die device and a lower die device which are arranged up and down, and is characterized in that the lower die device comprises a lower die assembly, a flat head assembly and a feeding and discharging assembly; The lower die assembly comprises a pair of lower die bases (23), a lower die base plate (2), a pair of lower die base dies (22) and a pair of workpiece limiting groove blocks (8), wherein the lower die bases (23) are symmetrically arranged on the lower die base plate (2) left and right, a feeding and discharging assembly is arranged between the lower die base plates, the lower die base dies (22) are arranged in the middle of the upper surface of the lower die bases (23) in the front-back direction, and the workpiece limiting groove blocks (8) are arranged on the inner sides of the lower die base dies (22); the flat head assembly comprises a pair of flat head mechanisms which are arranged left and right, the flat head mechanisms comprise flat head cylinders (20), flat head cylinder seat plates (21) and flat head pushing plates (19), one ends of the flat head cylinder seat plates (21) are abutted against the outer side surfaces of lower die bottoms (22) and are arranged on lower die holders (23), the flat head cylinders (20) are arranged at the upper outer side positions of the flat head mechanisms, and the end parts of cylinder shaft ends, extending out from one ends of the flat head cylinders (20) towards the lower die bottoms (22), of the flat head pushing plates (19) are connected; the material inlet and outlet assembly is arranged in the middle of the pair of lower die holders (23) in the front-back direction.
  2. 2. The automatic feeding and discharging round tube double-end flattening die according to claim 1, wherein the feeding and discharging assembly comprises a pushing mechanism, a lifting mechanism and a chute mechanism, the pushing mechanism is arranged at the middle upper part of the middle part of the lower die assembly, the lifting mechanism is arranged at the lower part of the middle rear part of the pushing mechanism, and the chute mechanism is arranged at two sides of the middle part of the lower die assembly.
  3. 3. The automatic feeding and discharging circular tube double-head flattening die according to claim 2, wherein the pushing mechanism comprises a pair of pushing cylinder mounting blocks (25), a pushing cylinder (1), a pushing cylinder mounting plate (3), a pushing plate (24), a pushing frame plate (9), a pushing frame bottom plate (7), a pair of workpiece placing groove blocks (30) and a pair of discharging frames (27); The pair of pushing cylinder mounting blocks (25) are respectively arranged at the front parts of the pair of lower die holders (23), and the left and right sides of the pushing cylinder mounting plates (3) are respectively connected with the front end surfaces of the pushing cylinder mounting blocks; The pushing cylinder (1) is arranged in the middle of the front of the pushing cylinder mounting plate (3), a pushing cylinder shaft (4) which stretches out backwards penetrates through the pushing cylinder mounting plate (3) and then is connected with a pushing plate (24), and the rear of the left side and the right side of the pushing plate (24) are respectively connected with a sliding groove mechanism; The left side and the right side of the push frame bottom plate (7) are respectively connected with a chute mechanism, and the middle part of the push frame bottom plate is connected with a push frame plate (9) arranged at the upper part of the push frame bottom plate through a lifting mechanism; The pair of workpiece placing groove blocks (30) are respectively arranged on the left side and the right side of the upper surface of the pushing frame plate (9) in the front-back direction, and the front half part and the back half part of the workpiece placing groove blocks (30) are respectively a workpiece feeding placing groove block (11) and a workpiece discharging placing groove block (28); the pair of discharging frames (27) are respectively arranged at the inner side parts of the upper parts of the rear parts of the pair of lower die holders (23).
  4. 4. The double-end flattening die for round tubes with automatic feeding and discharging functions according to claim 3, wherein the lifting mechanism comprises a pair of lifting cylinders (26), the lifting cylinders (26) are arranged at the lower part of the pushing frame bottom plate (7) in a front-back direction, and the cylinders penetrate through the pushing frame bottom plate (7) in the axial direction and are connected with the lower part of the pushing frame plate (9).
  5. 5. The double-end flattening die for automatic feeding and discharging round pipes according to claim 4, wherein the sliding groove mechanism comprises a pair of sliding grooves (6) and a pair of sliding key strips (5), the sliding grooves (6) are formed in the middle upper parts of the inner side surfaces of a lower die holder (23) and a pushing cylinder mounting block (25), the sliding key strips (5) are embedded in the sliding grooves (6), and the inner side surfaces of the sliding key strips are connected with the left side surface or the right side surface of a pushing frame bottom plate (7).
  6. 6. The automatic feeding and discharging round pipe double-end flattening die according to claim 5, wherein the upper die device comprises an upper die handle (13), an upper die fixing plate (16), an upper die movable plate (18), a pair of upper die stamping dies (10), four or more recovery spring columns (14) and four or more floating sliding rods (15), a pair of upper die stamping dies (10) which are arranged in the front-back direction are respectively arranged on the left side and the right side below the upper die fixing plate (16), the lower end of the upper die stamping die (10) penetrates through upper die stamping holes on the left side and the right side of an upper die movable plate (18) arranged on the lower portion of the upper die fixing plate (16), the upper die handle (13) is arranged in the middle of the upper surface of the upper die stamping die, the recovery spring columns (14) are arranged between the upper die fixing plate (16) and the upper die movable plate (18), the upper ends of the floating sliding rods (15) are provided with ends, the lower ends of the floating sliding rods are provided with threads, and the floating rods penetrate through step through holes of the upper die fixing plate (16) from top to bottom and are arranged in the upper die movable plate (18).
  7. 7. The double-end flattening die for automatic feeding and discharging round pipes according to claim 6 is characterized in that downward guide posts (17) are respectively arranged on the left side and the right side of the rear side of the lower surface of the upper die fixing plate (16), the guide posts (17) penetrate through guide holes of corresponding parts of the upper die movable plate (18) downward, and lower die seat guide holes (29) are correspondingly arranged on the rear parts of the upper surfaces of the pair of lower die seats (23).
  8. 8. The double-end flattening die for automatic feeding and discharging round pipes according to claim 7, wherein the flat head cylinder (20) is an air cylinder or an oil cylinder or an electric cylinder.
  9. 9. The double-end flattening die for the automatic feeding and discharging round pipes, which is characterized in that the pushing cylinder (1) is an air cylinder or an oil cylinder or an electric cylinder.
  10. 10. The double-end flattening die for automatic feeding and discharging round pipes according to claim 7, wherein the lifting cylinder (26) is an air cylinder or an oil cylinder or an electric cylinder.

Description

Automatic feeding and discharging circular tube double-head flattening die Technical Field The invention relates to the technical field of mechanical manufacturing, in particular to a double-head flattening die for an automatic feeding and discharging circular tube. Background In the prior art, spokes of a central air conditioner air guide fan usually adopt aluminum alloy round tubes, one end of each spoke is injection-molded with an insert for inserting a spoke wheel, and the other end of each spoke is injection-molded with a fan blade, so that the two ends of each aluminum alloy round tube need to be flattened in order to avoid rotation of the insert and the fan blade at the two ends of each aluminum alloy round tube. At present, a plurality of dies for flattening the end heads of the round tubes are adopted, but a mode that only one end can be flattened each time is adopted, and the round tubes are flattened root by root, so that the production efficiency is relatively low. The invention discloses a circular tube flattening double-head arc punching integrated arc punching machine and a using method thereof, and the device comprises a machine base, a first arc punching device and a second arc punching device which are arranged on the machine base, and a flattening device which is arranged between the first arc punching device and the second arc punching device, wherein the flattening device comprises a flattening seat connected with the machine base, a flattening oil cylinder vertically arranged on the flattening seat and a flattening die connected with the flattening oil cylinder. The invention can complete two procedures of circular tube arcing and flattening at one time, saves production time, reduces labor intensity and improves production efficiency. Another chinese patent (patent application No. 201821685512.6) discloses a stamping die for flattening a pipe, which comprises an upper die holder and a lower die holder, wherein a material receiving block for accommodating the middle part of the pipe is arranged in the middle of the lower die holder, a material pressing block is arranged on the upper die holder, upper forming blocks are respectively arranged at two ends of the material pressing block on the upper die holder, nitrogen springs for pushing the upper forming blocks are arranged in the upper die holder, lower forming blocks matched with the upper forming blocks are respectively arranged at two ends of the material receiving block on the lower die holder, a limiting block moving up and down is movably arranged in the lower die holder, a positioning pin penetrating out of the lower die holder to position the pipe when the workpiece is in a die opening state is arranged at one side of the limiting block near the end part, a top pin penetrating out of the lower die holder when the workpiece is in a die opening state is also arranged at the upper part of the limiting block, an upper die pushing pin matched with the top pin to push down the top pin and the upper die of the limiting block is arranged in the upper die holder, and the upper spring is larger than the positioning spring. Disclosure of Invention Aiming at the defects existing in the prior art, the technical problem to be solved by the invention is to provide the round tube flattening die which has high production efficiency, is safe and reliable, can automatically flat head, automatically feed and discharge, and can simultaneously flatten two ends. In order to solve the technical problems, the technical scheme adopted by the invention is that the double-head flattening die for the automatic feeding and discharging round pipe comprises an upper die device and a lower die device which are arranged up and down, wherein the lower die device comprises a lower die assembly, a flat head assembly and a feeding and discharging assembly; The lower die assembly comprises a pair of lower die holders 23, a lower die holder bottom plate 2, a pair of lower die bottom dies 22 and a pair of workpiece limiting groove blocks 8, wherein the lower die holders 23 are symmetrically arranged on the lower die holder bottom plate 2 left and right, a material inlet and outlet assembly is arranged between the lower die holders, the lower die bottom dies 22 are arranged in the middle of the upper surface of the lower die holders 23 in the front-back direction, and the workpiece limiting groove blocks 8 are arranged on the inner side of the lower die bottom dies 22; The flat head assembly comprises a pair of flat head mechanisms which are arranged left and right, the flat head mechanisms comprise flat head cylinders 20, flat head cylinder seat plates 21 and flat head push plates 19, one ends of the flat head cylinder seat plates 21 are abutted against the outer side surfaces of lower die bottom dies 22 and are arranged on lower die holders 23, flat head cylinders 20 are arranged on the upper outer side parts of the flat head cylinders, and the end parts of cylinder