CN201572867U

CN201572867U - Cutting mechanism of reinforcing steel bar straightening and cutting-off machine

Info

Publication number: CN201572867U
Application number: CN2009202983774U
Authority: CN
Inventors: 向天立; 王轶斐
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-28
Filing date: 2009-12-28
Publication date: 2010-09-08
Anticipated expiration: 2019-12-28

Abstract

The utility model belongs to the technical field of reinforcing steel bar processing machinery and provides a cutting mechanism of a reinforcing steel bar straightening and cutting-off machine. The main characteristics of the cutting mechanism are as follows: the utility model improves the present cutting mechanism of the reinforcing steel bar straightening and cutting-off machine; the cutting mechanism in the utility model comprises a box body, a flywheel, a knife rack, a main cutting knife and an auxiliary cutting knife; a driving rotating shaft and a driven rotating shaft are arranged in the box body, a bearing and a ratchet wheel are embedded in the driving rotating shaft, a ratchet tooth is arranged in the ratchet wheel, a pawl is arranged on the driven rotating shaft, a poking plate is arranged at one end of the pawl, a position-limiting shaft sleeve is arranged at the position of the poking plate, the poking plate is stretched out from the radial position-limiting opening position of the position-limiting shaft sleeve, a return spring is wound between the poking plate and the position-limiting shaft sleeve, an eccentric wheel is arranged at one side of the driven rotating shaft stretching out of the box body, and the cutting knives are arranged on the eccentric wheel. Compared with present cutting mechanism of the reinforcing steel bar straightening and cutting-off machine, the cutting mechanism in the utility model has the advantages of increasing the cutting speed, lowering the cutting error, being convenient for maintenance and the like.

Description

A kind of cutting mechanism of concrete-bar straightening-cutting machine

Technical field

The utility model belongs to the steel bar processing machinery technical field, relates to a kind of concrete-bar straightening-cutting machine, is specifically related to a kind of cutting mechanism of concrete-bar straightening-cutting machine.

Background technology

At present, concrete-bar straightening-cutting machine is more and more wider in the application of building field.The concrete-bar straightening-cutting machine kind is a lot, and its structure mainly contains frame, driving mechanism, haulage gear, straightening mechanism, compositions such as cutting mechanism and material bearing shelf.Its cutting mechanism comprises casing, establishes driving gear and driven gear in the casing, the inter-agency flywheel that is provided with of casing and straightening, and knife rest and cutting knife are established in the casing outside, and astragal ratchet in the driven gear, ratchet are provided with the mechanism of control cutting knife action.Though this concrete-bar straightening-cutting machine can carry out straightening and abscinding to reinforcing bar, but still exist the cutting mechanism complex structure, the maintenance cost height, shear rate is not high, and reinforcing bar is cut off many shortcomings such as error is bigger.

Summary of the invention

The applicant is in the process of using concrete-bar straightening-cutting machine, the cutting mechanism of finding existing concrete-bar straightening-cutting machine exists above-mentioned defective, through exploring, purpose is to provide a kind of cutting mechanism of concrete-bar straightening-cutting machine, shear rate improves in the time of can making shear reinforcement, shearing error is little, and is convenient to maintenance.

Technical solution adopted in the utility model is that the cutting mechanism of this concrete-bar straightening-cutting machine comprises: casing, energy-storing flywheel, knife rest, major and minor cutting knife, the driven spindle of establishing the active rotating shaft that is embedded with bearing and ratchet in the casing and being in transmission connection with it, described active rotating shaft stretch out casing and are connected with energy-storing flywheel by key with a straightening mechanism continuous side; Described driven spindle stretches out the casing opposite side and establishes eccentric wheel by bearing, establishes knife rest on the eccentric wheel, and knife rest is provided with guide rail, establishes main cutting knife on the guide rail, and secondary cutting knife is fixed on the cabinet exterior of main cutting knife below; At least establish 6 ratchets in the described ratchet, establish ratchet on the described driven spindle, ratchet one end sets firmly a strip and dials plate, described group of plate place is provided with spacing axle sleeve, dial plate from spacing axle sleeve radially limited mouth stretch out and and spacing axle sleeve between be arranged with back-moving spring, be equipped with on the box body wall and stop cutting, stop to transplant a cutting and be connected with the electromagnetic clutch of bar straightener, the relay of electromagnetic clutch is electrically connected with the signal generator of bar straightener, described limit shaft puts and is provided with groove, a hinged push rod on the casing, push rod is located at spring on the casing by an end and tightly is engaged on limit shaft and puts with groove fit and prevent to dial the plate shake.

In order to make concrete-bar straightening-cutting machine reduce error when the shear reinforcement, establish 6-12 ratchet in the described ratchet.

The utility model is owing to adopt technique scheme and measure, cutting mechanism to existing concrete-bar straightening-cutting machine is improved, replace original driving gear and driven gear by the housing in the casing, the mechanism of control cutting knife deciliter is set on housing, compare with the cutting mechanism of original concrete-bar straightening-cutting machine, not only simple in structure, be convenient to maintenance, maintenance cost reduces, owing to establish a plurality of ratchets in the ratchet, the time interval of control cutting knife reduces during bar cutting, and institute's shear-steel muscle error reduces, and the reinforcing bar length of being sheared in the unit interval increases.

Description of drawings

Fig. 1 represents the driving shaft of cutting mechanism of a kind of concrete-bar straightening-cutting machine of the utility model and the assembly structure schematic diagram of driven shaft;

Fig. 2 represents the cutting mechanism partial schematic sectional view;

Fig. 3 represents that cutting mechanism A is to partial schematic sectional view;

Fig. 4 represents the active rotating shaft structural representation;

Fig. 5 represents the axial cross-sectional schematic of active rotating shaft;

Fig. 6 represents the ratchet structure schematic diagram.

The specific embodiment

Below in conjunction with drawings and Examples, further specify the specific structural features of the cutting mechanism of a kind of concrete-bar straightening-cutting machine of the utility model.

The embodiment of the cutting mechanism of a kind of concrete-bar straightening-cutting machine of the utility model, referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, its structure comprises: casing 1, energy-storing flywheel 2, knife rest 3, main cutting knife 4, secondary cutting knife 5 is established an active rotating shaft 8 and a driven spindle 9 that is embedded with bearing 6 and ratchet 7 in the casing 1, stretch out outside the casing 1 and be connected with an energy-storing flywheel 2 keys at the casing 1 side active rotating shaft 8 that links to each other with the straightening mechanism (not shown) of concrete-bar straightening-cutting machine; It is eccentric shaft 10 that driven spindle 9 stretches out casing 1 opposite side one end, establishes knife rest 3 on the eccentric shaft 10, establishes guide rail 11 on the knife rest 3, establishes main cutting knife 4 on the guide rail 11, and secondary cutting knife 5 is fixed on casing 1 outer wall of main cutting knife 4 belows; Establish 6-12 ratchet in the ratchet 7, establish ratchet 12 on the driven spindle 9 in the casing 1, ratchet in ratchet 12 and the ratchet 7 meshes under certain condition and makes active rotating shaft 8 drive driven spindles rotation 9, ratchet 12 1 ends set firmly a strip and dial plate 13, dial plate 13 places and be provided with spacing axle sleeve 14, dial plate 13 from spacing axle sleeve 14 radially limited mouth 15 stretch out and and spacing axle sleeve 14 between be arranged with back-moving spring 16, be equipped with on casing 1 wall and stop cutting 17, stop to transplant a cutting and 17 be connected with the electromagnetic clutch 18 of bar straightener, the relay of electromagnetic clutch 18 is electrically connected with the signal generator (not shown) of bar straightener, described spacing axle sleeve 14 is provided with groove 19, a hinged push rod 20 on the casing 1, push rod 20 is located at spring on the casing 1 by an end and tightly is engaged on the spacing axle sleeve 14 to cooperate with groove 19 and prevents to dial the plate shake.

Claims

1. the cutting mechanism of a concrete-bar straightening-cutting machine, comprise casing, energy-storing flywheel, knife rest, main cutting knife, secondary cutting knife is characterized in that: establish active rotating shaft that is embedded with bearing and ratchet and the driven spindle that is in transmission connection with it in the casing, described active rotating shaft stretches out casing and is connected with energy-storing flywheel by key with a straightening mechanism continuous side; Described driven spindle stretches out the casing opposite side and establishes eccentric wheel by bearing, establishes knife rest on the eccentric wheel, and knife rest is provided with guide rail, establishes main cutting knife on the guide rail, and secondary cutting knife is fixed on the cabinet exterior of main cutting knife below; At least establish 6 ratchets in the described ratchet, establish ratchet on the described driven spindle, ratchet one end sets firmly a strip and dials plate, described group of plate place is provided with spacing axle sleeve, dial plate from spacing axle sleeve radially limited mouth stretch out and and spacing axle sleeve between be arranged with back-moving spring, be equipped with on the box body wall and stop cutting, stop to transplant a cutting and be connected with the electromagnetic clutch of bar straightener, the relay of electromagnetic clutch is electrically connected with the signal generator of bar straightener, described limit shaft puts and is provided with groove, a hinged push rod on the casing, push rod is located at spring on the casing by an end and tightly is engaged on limit shaft and puts with groove fit and prevent to dial the plate shake.

2. the cutting mechanism of a kind of concrete-bar straightening-cutting machine as claimed in claim 1 is characterized in that establishing in the described ratchet 6-12 ratchet.