CN106393408A

CN106393408A - Retractable adobe cutter

Info

Publication number: CN106393408A
Application number: CN201510462459.8A
Authority: CN
Inventors: 刘运武
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-07-31
Filing date: 2015-07-31
Publication date: 2017-02-15

Abstract

The invention discloses a retractable adobe cutter suitable for cutting an adobe strip containing hard substances. According to the technical scheme, the retractable adobe cutter is formed by combining a positioning support with a cutter rest capable of moving front and back; the positioning support is located on the outer-rear side, and the cutter rest is located on the inner-front side; the two left-right sides of the middle-rear section of the cutter rest are attached to front and back wheels installed on the positioning support; two longitudinal extensible screws are arranged between the two sides of the cutter rest; ejection heads at the front ends of the extensible screws are connected with a cross bar of the cutter rest; the rear ends of the extensible screws penetrate through a transverse traction plate of the positioning support; the portions, located between the cross bar and the transverse traction plate, of the outer edges of the extensible screws are sleeved with springs; and screwed nuts are located on the portions, separated from the springs and located behind the traction plate, of the extensible screws. According to the acting principle of the retractable adobe cutter, the cutter rest is blocked and retreats when encountering hard substances, the springs on the back side are compressed at the moment, and the operating cutter rest moves forwards to restore under the effect of the stretching force of the compressed springs after being separated from the adobe strip.

Description

One kind can be shunk back pinch-off knife

Technical field

The present invention relates to brick and tile enterprise is a kind of supporting accessory machinery of extruder aborning with main frame, more precisely more particularly it is used to on-stream for main frame extruded continuously billet cuts into a kind of cutting machine spare and accessory parts cutting knife of one of them of monolithic adobe or unbaked tile again.

Background technology

It is used for its structure of pinch-off from the pinch-off knife with blade with acting principle as depicted in figs. 1 and 2, wherein Fig. 1 is the corresponding vertical extruder of vertical installation, Fig. 2 installs corresponding flat extruder for flat.In Fig. 1：Many pinch-off knives 7 by the connecting plate 25 of back and walk wheel 8 and short axle 10 is linked as an annular ring, and upper and lower two is linked on each runner 9, and wheel 8 is walked for one in adjacent two its junction of pinch-off knife, and its principle of doing work is：From the machine mouth 1 of vertical extruder, squeezed billet 6 out promotes many of left and right cutting knife 7 synchronization to shift from the top down in vertical decline, in slope track 3 be arranged on and walking to promote many cutting knifes 7 under wheel 8 collective effects from top to bottom and from the superficial to the deep simultaneously and constant speed implements cutting to billet 6 on little axle 10, two relative cutting knifes 7 of left and right respectively cut 1/2nd inside from outward respectively, and billet becomes after being cut off to be seen off on the conveyer belt 4 fall within adobe 2 bottom.Billet connects runner 9 for active cutting knife for passive belt and rotates by the direction of arrow 5, respectively walks the simultaneously inwardly sliding from the top down of wheel 8 straight rail roads 3 in rotation, and many cutting knifes being achieved in being in side (being interior near billet) ceaselessly participate in cutting；In fig. 2：On-stream the extruded billet 11 of its machine mouth 1 of extruder that flat is installed is shifted forward with horizontal on endless-belt 4, and endless-belt is supported and positioned by multiple carrying rollers 12, and each carrying roller 12 two is arranged on support（In figure is not shown）On, the cutter group of single strip ring is arranged on the top of its billet 11, the cycloconveyor belt 23 that the adobe 2 being split is driven by power is seen off, is changed in addition to unidirectional cutting to cutting except two-way, its structure is identical with Fig. 1 with acting principle.

Because above-mentioned its structure of pinch-off knife is an entirety, therefore it is suitable only for cutting the billet of the hard thing of no impure i.e. handstone etc., the drawbacks of arising that the deformation of pinch-off knife when meeting hard thing or be broken off.

Invention is held

The present invention is to overcome above-mentioned deficiency, it is desirable to provide a kind of technical scheme that will not damage pinch-off knife during pinch-off, specific practice is as follows.

Pinch-off knife is formed with combined by the cutoff knife rack that can shift in front and back by locating support, locating support is outside and rear, cutoff knife rack is interior and front, the horizontal left and right sides in cutoff knife rack posterior segment is affixed with the roller in front and back being arranged on locating support respectively, it is two longitudinal extension screw rods in both sides, expansion screw front end top is connected with cross bar, rear end passes through from the horizontal dagger plank of locating support, expansion screw outer rim between cross bar and dagger plank is set with spring, nut is used on the expansion screw of dagger plank back being separated by with spring, cutoff knife rack front is provided with blade, blade cutting edge of a knife or a sword mouth two is separately installed with up and down according to billet width or claims left and right each roller.

Its acting principle be：Lower knife cutting in when running into hard thing such as stone or ironware and be obstructed, cutoff knife rack is promoted to retreat because the elastic force of spring is limited, spring now is compressed, operate to lower dead center or its cutoff knife rack of front stop its front edge of a knife and billet disengagement in retrogressing, resistance now is eliminated, formed cutoff knife rack in the presence of stretching force by compression spring and move forward immediately reset former, its result is company's base (not cutting off), to blade and not damaged.The otch burr that the roller role installing additional occurs when being and cutting billet through blade flatten, make it have more aesthetic feeling, and its reason is cutting edge its roller synchronous rotary therewith in displacement from the superficial to the deep.

Described on end, its main points of the technical scheme selected by the present invention are：Pinch-off knife is formed with combined by the cutoff knife rack that can shift in front and back by locating support, locating support is outside and rear, cutoff knife rack is interior and front, about cutoff knife rack posterior segment, both lateral sides are affixed with the roller in front and back being arranged on locating support respectively, it is two longitudinal extension screw rods in both sides, expansion screw front end top is connected with cutoff knife rack cross bar, rear end passes through from the horizontal dagger plank of locating support, expansion screw outer rim between cross bar and dagger plank is set with spring, the expansion screw of dagger plank back being separated by with spring is the nut screwing.Blade cutting edge of a knife or a sword mouth two is separately installed with up and down according to billet width or claims left and right each roller.

The invention has the beneficial effects as follows will not damage pinch-off knife in cutting process when running into hard thing, the therefore scope of application broadens, and depending on the degree of spring can be according to the hardness of billet, can property cut be defined when no hard thing in billet；Besides due to the presence of roller, the burr formed in cutting process are driven plain in the rolling by roller and more aesthetic feeling.

Brief description

Fig. 1 and Fig. 2 is acting principle schematic in cutting process for the pinch-off knife；

Fig. 3 and Fig. 4 is its structure of the present invention and acting principle planar representation；

Fig. 5 is the transverse sectional view that in Fig. 4, its front blade is assembled with roller；

Fig. 6 is blade structure plane display figure；

Fig. 7 is locating support and the two-in-one side view of connecting plate.

Specific embodiment

Do more detailed description below in conjunction with the accompanying drawings.

With reference to Fig. 3 to Fig. 6，Pinch-off knife assembly is formed with combined by the cutoff knife rack 24 that can shift in front and back by locating support 13，Locating support 13 is outside and rear，Cutoff knife rack 24 is interior and front，Cutoff knife rack 24 posterior segment both lateral sides are affixed with the roller 19 in front and back being arranged on locating support respectively，It is two longitudinal extension screw rods 26 in both sides，Expansion screw front end top is connected with the cross bar of cutoff knife rack 24，Rear end passes through from the horizontal dagger plank of locating support 13，Expansion screw 26 outer rim between cross bar and dagger plank is set with spring 20，Screwed with nut 16 on the expansion screw of dagger plank back being separated by with spring，Cutoff knife rack front is provided with blade 14，Blade two is drilled with aperture 22 and is used for installing pull bar 15 and is connected as a single entity with cutoff knife rack 24 and screws by nut 16，Blade cutting edge of a knife or a sword mouth two has breach 21 for being separately installed with up and down or each roller 18 in title left and right according to billet width.

With reference to Fig. 7, locating support 13 back and connecting plate 25 are connected as a single entity, wheel 8 is walked both for being implicative of each other with chain with adjacent two connecting plates 25 in each one of two, it is used for the sliding in straight rail road 3 again, it is separately installed with roller 19 before and after locating support 13 both sides (in figure only illustrates one side), roller center is positioned by screw rod 17 break-through and uses nut 16 to fasten, and adds strut 23 for preventing from deforming.

Claims

1. one kind can be shunk back pinch-off knife, it is characterized in that：Pinch-off knife is formed with combined by the cutoff knife rack that can shift in front and back by locating support, locating support is outside and rear, cutoff knife rack is interior and front, about cutoff knife rack posterior segment, both lateral sides are affixed with the roller in front and back being arranged on locating support respectively, it is two longitudinal extension screw rods in both sides, expansion screw front end top is connected with cutoff knife rack cross bar, rear end passes through from the horizontal dagger plank of locating support, expansion screw outer rim between cross bar and dagger plank is set with spring, the expansion screw of dagger plank back being separated by with spring is the nut screwing.

2. one kind according to claim 1 can be shunk back pinch-off knife, it is characterized in that blade cutting edge of a knife or a sword mouth two is separately installed with up and down according to billet width or claims left and right each roller.