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Constant-force spring as well as constant-force spring forming tool and forming method

A constant force spring, forming tooling technology, applied in the direction of making springs from wires, wire processing, other household appliances, etc., to achieve the same force value and speed.

Pending Publication Date: 2019-09-24
LIZHOU QINGDAO HARDWARE SPRING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the above-mentioned technical problems existing in the prior art field, the object of the present invention is to provide a constant force spring, a constant force spring forming tool and a forming method without deformation phenomenon

Method used

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  • Constant-force spring as well as constant-force spring forming tool and forming method
  • Constant-force spring as well as constant-force spring forming tool and forming method
  • Constant-force spring as well as constant-force spring forming tool and forming method

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Embodiment

[0024] refer to Figure 1-Figure 4 , the constant force spring forming tool of the present embodiment, it comprises wallboard 1, and described wallboard 1 is installed with rod core 3, pallet holder 6, mold pallet 7, pallet drive mechanism 8 and computer control system, The rod core 3 is provided with a discharge port, the rod core 3 is installed in the center of the wallboard 1, and the carriage holder 6 is fixed on the wallboard 1 and around the rod core 3 around the rod core 3 distribution, the mold carriage 7 is installed on the carriage holder 6, and one end is connected with the mould, and the other end is connected with the carriage driving mechanism 8. Cutting die 4, forming wire wheel 2, forming limit die 21, the forming auxiliary die 9 is arranged directly above the rod core 3, and the tail punching and cutting die 4, forming limit die 21 are arranged on the rod core 3 The two sides are arranged horizontally with the rod core 3, and the tail punching die 5 is set ab...

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Abstract

The invention discloses a constant-force spring as well as a constant-force spring forming tool and forming method. The constant-force spring forming tool comprises a wallboard, a rod core, carriage fixing seats, mold carriages, a carriage driving mechanism and a computer control system are arranged on the wallboard, a material outlet is formed in the rod core, the rod core is arranged in the center of the wallboard, the carriage fixing seats are fixed on the wallboard and are distributed around the circumference of the rod core by taking the rod core as the center, the mold carriages are arranged on the carriage fixing seats, moreover, one ends of the mold carriages are connected with molds, the other ends of the mold carriages are connected with the carriage driving mechanism, and the molds comprise a forming auxiliary mold, a tail punching mold, a tail punching and cutting-off die, a forming wire wheel and a forming limiting mold. Each circle of R-arc of the machined constant-force spring is identical in size, the force value is consistent after stretching, the phenomena of deformation can be avoided, the speed can be kept consistent during stretching and returning, and the phenomenon that the speed is suddenly accelerated or slowed down can be avoided.

Description

technical field [0001] The invention belongs to the technical field of spring forming and processing, and in particular relates to a constant force spring, a constant force spring forming tool and a forming method. Background technique [0002] The constant force spring is a coiled spring made of elastic steel wires or steel strips with the same cross section. The stiffness coefficient of the existing constant force spring increases from the outer ring to the inner ring, so that the elastic force is in its corresponding stroke. If the undulation is too large, it will not meet the requirement of constant force, and it will easily deform, affect the original elasticity, and affect the normal use of the equipment, and the deformation caused by insufficient resilience will occupy too much equipment installation space and affect the normal installation of other installation parts and work. Contents of the invention [0003] In order to overcome the above-mentioned technica...

Claims

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Application Information

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IPC IPC(8): B21F35/00B21F11/00
CPCB21F11/00B21F35/00
Inventor 张自超李业昌孙丽芹
Owner LIZHOU QINGDAO HARDWARE SPRING CO LTD
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