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Hole drilling apparatus and method for cutting machine

The technology of a drilling device and drilling method, which is applied in the direction of metal processing, etc., can solve the problems of damage to air permeability, cutting damage, damage to softness, etc., and achieve the effects of preventing air leakage, preventing increase in resistance, and avoiding reduction in cutting accuracy

Active Publication Date: 2013-01-09
SHIMA SEIKI MFG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, if the cuttings are transferred to the side of the cutting table that attracts the sheet material, there is a risk of clogging the bristle brushes that form the surface, etc.
If the bristle brush is clogged, it will impair air permeability and need to be cleaned, or it will impair the flexibility with respect to the drill bit and blade, and there is a danger of causing damage when piercing or cutting

Method used

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  • Hole drilling apparatus and method for cutting machine
  • Hole drilling apparatus and method for cutting machine
  • Hole drilling apparatus and method for cutting machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] figure 1 and figure 2 The drilling device 1 shown in (a) is equipped with a cutting head that moves planarly along the surface of the cutting table 3 of the cutting machine 2 . Although illustration of the cutting head and the blade is omitted, the blade cuts the sheet materials 4 stacked on the cutting table 3 in accordance with preset cutting data. In order to hold the sheet material 4 in advance during cutting by the blade, the surface of the cutting table 3 is constituted by bristle brushes 3 a or the like. The bristle brush 3a has the flexibility to escape from the edge of the blade if the edge of the blade penetrates while maintaining air permeability for allowing the suction force from below to act. The surfaces of the laminated sheet materials 4 are covered with an air-impermeable film 4a. The drilling device 1 includes a hollow cylindrical rotary drill 5 for drilling.

[0040] figure 2 (b) shows the structure of the rotary drill 5 . The rotary drill 5 r...

Embodiment 2

[0056] Figure 7 , as another embodiment of the present invention, shows a structure in which a removing device 30 is provided near the surface of the sheet material 4 . The removal device 30 is built into a foot plate 31 that is driven up and down by the lower rod 9 b of the drive cylinder 9 . A suction hose 32 is connected to the foot pressure plate 31 . A discharge nozzle 33 is also provided on the foot pressure plate 31 , and compressed air is supplied through a discharge hose 34 . The cuttings 4 b pressed by the lower end 6 c of the pressing pin 6 in the foot press plate 31 so as to stay on the surface of the sheet material 4 can be moved to the suction hose 32 by blowing compressed air from the blowing nozzle 33 . , to remove by suction. If the suction force is large, the discharge nozzle 33 may not be provided. In addition, instead of using the structure on the suction side such as the suction hose 32, an outlet hole may be provided on the foot press plate 31, and o...

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Abstract

The present invention provides a hole drilling apparatus and method for a cutting machine, which can prevent air leakage of a perforating thin sheet material, wherein the hole drilling apparatus (1) is provided with a hollow cylindrical rotation drill (5) rotating about an axis (5a), inside a hollow hole (5b) there is provided an extrusion pin (6), the upper portion (6a) of the extrusion pin (6) extends above the handle portion (5d) of the rotation drill (5), the lower end (6c) of the extrusion pin (6) relatively extends below the cutter tip of the rotation drill, the extrusion pin (6) is supported by a supporting mechanism (7) and connected with a pedal plate (8) to ascend and descend, a drive cylinder (9) drives the extrusion pin (6) in a manner of being connected with the pedal plate (8), thereby discharging drilling cuttings (4b) from the rotation drill (5) in a proper processing mode, and if the drilling cuttings (4b) are left inside the holes of the thin sheet material (4), the air leakage can be prevented.

Description

technical field [0001] The present invention relates to a drilling device and method for a cutting machine for piercing laminated sheet materials. Background technique [0002] Conventionally, cutting machines have been equipped with a cutting table that sucks and holds sheet materials such as cloth and leather in a state where they are stacked in multiple layers. The sheet material held by suction is cut by the blade of the cutting head that moves planarly on the cutting table. If the cutting head of such a cutting machine is equipped with a piercing device, then drilling can also be performed. As the piercing device, a hollow cylindrical rotary drill or the like is used (for example, refer to Patent Document 1). [0003] In the sheet material piercing device disclosed in Patent Document 1, when piercing, drill chips, which are parts cut off from the sheet material, enter the inner diameter (bore) of a hollow hole which is a rotary drill. If the rotary drill is pulled up...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26F1/16B26D9/00B26D7/18B26D7/01
CPCB26D7/1818B26F1/16
Inventor 青谷润
Owner SHIMA SEIKI MFG LTD
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