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CN-121976016-A - Anti-loosening countersunk head screw production equipment and processing technology thereof

CN121976016ACN 121976016 ACN121976016 ACN 121976016ACN-121976016-A

Abstract

The application relates to the field of screw production equipment, in particular to anti-loosening countersunk screw production equipment and a processing technology thereof, which comprise a heat treatment furnace, wherein an air inlet and an air outlet are respectively arranged at the upper end and the lower end of the heat treatment furnace, a furnace door is additionally arranged at the end of the heat treatment furnace, the furnace door is rotatably arranged at the end of the heat treatment furnace through a hinge shaft, a first stirring plate and a second stirring plate are arranged in the heat treatment furnace, the first stirring plate and the second stirring plate are distributed at the left side and the right side of the heat treatment furnace, the first stirring plate and the second stirring plate are distributed in an up-down staggered manner, a driving assembly is additionally arranged between the furnace door and the first stirring plate, the furnace door drives the first stirring plate to lift along the vertical direction through the driving assembly, and the first stirring plate synchronously drives the second stirring plate to lift along the vertical direction when lifting. The application aims to improve consistency of hardness and strength of screws in the same batch after being treated by a heat treatment furnace.

Inventors

  • Yang Diebing
  • CHENG LEI

Assignees

  • 晋亿螺丝(上海)有限公司

Dates

Publication Date
20260505
Application Date
20260209

Claims (9)

  1. 1. The anti-loosening countersunk head screw production equipment is characterized by comprising a heat treatment furnace (1), wherein an air inlet (2) and an air outlet (3) are respectively arranged at the upper end and the lower end of the heat treatment furnace (1), a furnace door (4) is additionally arranged at the end of the heat treatment furnace (1) through a hinge shaft (5), a first stirring plate (6) and a second stirring plate (7) are arranged in the heat treatment furnace (1), the first stirring plate (6) and the second stirring plate (7) are distributed on the left side and the right side of the heat treatment furnace (1), the first stirring plate (6) and the second stirring plate (7) are vertically staggered, a driving assembly is additionally arranged between the furnace door (4) and the first stirring plate (6), the furnace door (4) drives the first stirring plate (6) to lift along the vertical direction through the driving assembly, and a synchronous belt (9) moves the second stirring plate (7) to lift along the vertical direction when the first stirring plate (6) lifts.
  2. 2. The anti-loosening countersunk screw production equipment according to claim 1, wherein the driving assembly comprises a first rotating shaft (8), a synchronous belt (9), a first gear (10), a second gear (11), a third gear (12), a second rotating shaft (13), a driving rack (14) and an adapter rod (15); The heat treatment furnace is characterized in that the first rotating shaft (8) is arranged on one side, far away from the hinge shaft (5), of the heat treatment furnace (1) along the vertical direction, the first rotating shaft (8) is vertically arranged, the synchronous belt (9) is sleeved between the hinge shaft (5) and the first rotating shaft (8) along the horizontal direction, the first gear (10) and the second gear (11) are bevel gears, the first gear (10) is integrally sleeved on the periphery of the first rotating shaft (8) along the horizontal direction, the second gear (11) is arranged on the top of the first gear (10) along the vertical direction in a meshing manner, the second rotating shaft (13) is integrally connected on one end, far away from the first gear (10), of the second gear (11), the third gear (12) is integrally sleeved on the periphery of the second rotating shaft (13), the driving rack (14) is arranged on one side of the first stirring plate (6) along the vertical direction, and the switching rod (15) is integrally formed between the first stirring plate (6) and the driving rack (14) along the horizontal direction.
  3. 3. The anti-loosening countersunk screw production equipment according to claim 2, wherein two fixed pulleys (16) are arranged between the first stirring plate (6) and the second stirring plate (7), the first stirring plate (6) and the second stirring plate (7) are connected through a traction belt (17), the traction belt (17) is sleeved on the peripheral sides of the two fixed pulleys (16), and a counterweight plate (18) is integrally arranged at the bottom of the second stirring plate (7).
  4. 4. The anti-loosening countersunk screw production equipment as claimed in claim 3, wherein the tops of the first stirring plate (6) and the second stirring plate (7) are respectively provided with a first stirring wheel (19) along the horizontal direction, and the first stirring plate (6) and the second stirring plate (7) synchronously drive the corresponding first stirring wheels (19) to rotate in the lifting process.
  5. 5. The anti-loosening countersunk screw production equipment as set forth in claim 4, wherein a third rotating shaft (20) is integrally connected to the fixed pulley (16) along the horizontal direction, a fourth gear (21) is integrally sleeved on one side, far away from the fixed pulley (16), of the third rotating shaft (20) along the vertical direction, a fifth gear (22) is horizontally meshed with the top of the fourth gear (21), a fourth rotating shaft (23) is integrally connected to one end, far away from the fourth gear (21), of the fifth gear (22), and the first stirring wheel (19) is integrally sleeved on the periphery of the fourth rotating shaft (23) along the horizontal direction.
  6. 6. The anti-loosening countersunk screw production equipment as claimed in claim 5, wherein the side walls of the first stirring plate (6) and the second stirring plate (7) are respectively provided with a second stirring wheel (24) along the vertical direction, and the synchronous belt (9) of the first stirring plate (6) and the second stirring plate (7) moves the second stirring wheels (24) to lift and drive the corresponding second stirring wheels (24) to rotate in the lifting process.
  7. 7. The anti-loosening countersunk head screw production equipment as set forth in claim 6, wherein the top of the first stirring plate (6) is integrally connected with a rotating sleeve (25) along the horizontal direction, a fifth rotating shaft (26) is additionally arranged in the rotating sleeve (25) along the horizontal direction, one end of the fifth rotating shaft (26) is connected with the second stirring wheel (24), the other end of the fifth rotating shaft (26) is connected with a lifting gear (27), the lifting gear (27) is vertically arranged, a fixed rack (28) is arranged on the inner wall of the heat treatment furnace (1) along the vertical direction, and the lifting gear (27) is meshed with the fixed rack (28).
  8. 8. The anti-loosening countersunk screw production equipment as claimed in claim 1, wherein the first stirring plate (6) and the second stirring plate (7) are in a wave plate shape as a whole.
  9. 9. A process for machining the anti-loosening countersunk screw is characterized by adopting the anti-loosening countersunk screw production equipment disclosed in any one of claims 1-8, and comprises the following steps of S1, determining the shape, the size and the parameters of the screw, S2, selecting high-strength steel or other metals according to the purpose of the screw, S3, providing qualified metal blanks for a cold forging process and ensuring the dimensional accuracy of the blanks for subsequent cold forging forming, S4, using a die to perform primary forging on the blanks, S5, performing quenching treatment on the cold-forged screw to increase the hardness, S6, selecting a surface treatment mode such as galvanization, chromium plating or spraying according to requirements, S7, performing hardness test and surface quality inspection.

Description

Anti-loosening countersunk head screw production equipment and processing technology thereof Technical Field The application relates to the field of screw production equipment, in particular to anti-loosening countersunk screw production equipment and a processing technology thereof. Background In the screw production process, the heat treatment furnace is a key device for ensuring the mechanical properties (such as strength, hardness and toughness) and the service life of the product. In the related art, temperature is a core parameter of the heat treatment, and non-uniformity or control misalignment may directly lead to inconsistent screw performance. The hot gas in the heat treatment furnace is easy to gather at the furnace top, so that the phenomenon of local overheating in the furnace is caused, the hardness and the strength of screws in the same batch are inconsistent after the screws are treated by the heat treatment furnace, and the subsequent processing and production are not facilitated. Disclosure of Invention The application provides anti-loosening countersunk head screw production equipment and a processing technology thereof, and aims to realize quick homogenization of temperature in a furnace, avoid the occurrence of local overheating or local supercooling, further facilitate ensuring that hot air flow in the furnace can penetrate into each corner of a hearth, ensure extremely uniform temperature distribution in the furnace, facilitate improving the consistency of hardness and strength of screws in the same batch after being processed by a heat treatment furnace, and further ensure the subsequent processing production. The application provides a production device of an anti-loosening countersunk head screw and a processing technology thereof, which adopts the following technical scheme: The utility model provides a locking countersunk head screw production facility, includes the heat treatment furnace, the upper and lower both ends of heat treatment furnace are equipped with air inlet and gas vent respectively, the tip of heat treatment furnace adds and is equipped with the furnace gate, the furnace gate is installed through the articulated shaft rotation the tip of heat treatment furnace, be equipped with first stirring board and second stirring board in the heat treatment furnace, first stirring board with the second stirring board distributes the left and right sides of heat treatment furnace, just first stirring board with the second stirring board is crisscross from top to bottom distributed, the furnace gate with add between the first stirring board and be equipped with drive assembly, the furnace gate passes through the drive assembly drive first stirring board goes up and down along vertical direction, just first stirring board is synchronous to be driven when going up and down the second stirring board goes up and down in vertical direction. Through adopting above-mentioned technical scheme, this kind of setting mode, furnace gate drive first stirring board and second stirring board go up and down at the in-process of opening or closing, this in-process utilizes first stirring board and second stirring board to stir the steam in the stove, and then is favorable to realizing the quick homogenization of temperature in the stove, avoid appearing local overheated or local supercooled phenomenon and appear, be favorable to guaranteeing that the hot gas flow in the stove can penetrate to each corner of furnace, make the temperature distribution in the stove extremely even, and then improve its hardness after heat treatment furnace treatment of screw of same batch, the uniformity of intensity, and then ensure its follow-up processing production. Meanwhile, the lifting of the first stirring plate and the second stirring plate is started only when the furnace door is opened or closed, so that the stirring of hot air in the furnace by the first stirring plate and the second stirring plate is intermittent. The stirring mode can effectively avoid the problem that the first stirring plate and the second stirring plate stir the furnace for a long time, so that excessive stirring in the heat treatment furnace can be effectively solved, the gas balance in the furnace is damaged, and the local reaction is aggravated. Preferably, the driving assembly comprises a first rotating shaft, a synchronous belt, a first gear, a second gear, a third gear, a second rotating shaft, a driving rack and a transfer rod; The first rotating shaft is arranged on one side, far away from the hinge shaft, of the heat treatment furnace along the vertical direction, the first rotating shaft is vertically arranged, the synchronous belt is sleeved between the hinge shaft and the first rotating shaft along the horizontal direction, the first gear and the second gear are bevel gears, the first gear is integrally sleeved on the periphery of the first rotating shaft along the horizontal direction, the second gear is meshed and arr