DE2543718A1 - GRINDING MACHINES FOR KNIVES AND CUTTING WITH STRAIGHT AND CURVED EDGE - Google Patents

Description

Pfuhl-, urlaf iviRcn, den '). September 1975 &

,. Detector; ίη, ηζ L a η ζ, Ingen

791 k .fuhi II

Bahnhofstrasse 2'4a.
and

Paul 3 c h η η 1 e, ocnrniedemeister

79'H Unlingen

ühlenstrasse 2Ο-22

"; e write letter

The i; rfindunf; concerns a grinding machine for, esser and

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Cutting with a straight or convex cutting edge » *

with Torctollb-ro rwnff vara DtCl ¹ and ■ rkühluna · as well as the fibrin hodoi rubbed on oinor lor. itcft

the grind for., EXAMPLE of ..andraessern. · uttermessern, m ubeilen, üpaltern, .infschm'tt- and .üntschwartungsraaschinenmessern and other are already ochleifmaschinen known. However, these known processes have the disadvantage that different machines are used for grinding, grinding and removing the cutting edges ready for shaving
must be used. There are known grinding machines which have rigid nesserfü'Tungen. Are further
Grinding machines are known which have tendril running grinding wheels on both sides of the drive motor on an extremely strong basis. As a result, it often happens that when grinding
of long and large . The tips of the knife to be sharpened intervene on the opposite grinding wheel and thus cause a high risk of accidents.

These well-known ancestors have the 3 \ 'disadvantage that they have no stepless grinding angle settings and at the same time have a horizontal adjustment to the whetstone,
which can be arranged optionally on both sides of the oteines

7 0 9 8 1 S / 0034

on the j3e writing, Franz Lanz, Paul bchönle, 9 · Sept. 1975

can. In addition, there is not enough water cooling available, which is directly to the grinding tool acts.

The invention has set itself the task of addressing these disadvantages to fix.

Some embodiments of the invention are shown in the drawing and described in more detail. It shows in Fig. 1, Fig. 2,! Ig. 3 and Fig. 4, the arrangement of the adjustable grinding angle adjustment (2), which is operated by a rotary knob (1) and at the same time the horizontal adjustment is operated on this device by the rotary knob (8), so that a proper guidance of the knife on the grindstone is guaranteed. The grindstone (4) is driven by a gear motor (5) »which is equipped with a second shaft end for the polishing wheel (6) and a honing wheel (7j). The coolant (water, grinding emulsion or the like) is in the water bowl (3) · From there it is fed to the tool to be ground via a tap and a hose line (14) in order to act directly on the material to be ground . The grindstone (4) rotates at low speed (far below conventional cutting speeds). As a result, little heat is generated during grinding, which does not change the structure of the tool (knife, etc.) and thus ensures a longer edge retention ) is located on the high-speed part of the geared motor (5) · It is equipped with an accident protection (1O), which covers the polishing wheel over the lower half of the wheel kt. The honing wheel (7 ) is at the appropriate distance from the polishing wheel (6) and is equipped with a bevel. This slope determines the position of the knife when it is ready to shave.

709815/0034

Elatt £ zuT Description, Frnnz Lanz, Paul öchönle, 9 · Sept. 1975

pull and thus prevent reaching into the polishing wheel (6).

5, 6, 7 ^and 8 show the offset arrangement of the processing stations with respect to one another.
The grinding stone (k) is driven by a geared motor, which is driven against the polishing wheel (6) and the honing wheel (7) by a specially arranged motor (13). Both motors can be switched on and off independently of each other. It enables the grinding stone (k) , polishing wheel (6) and Abziehschoibp (7) to be driven simultaneously via the geared motor with a suitable belt arrangement for all 3 grinding stations. This offset arrangement enables long tools (knives, chewing axes, cutter knives, derinding machine knives, etc.) to be fully processed with one machine in a confined space. For the coolant supply, one is located in the water tank
Pump (15) operated. This is particularly advantageous for larger machines in order to reduce water consumption.

9 shows the arrangement of the grindstone (17) which is driven by a gear motor (15) with two slow-moving, elongated shaft ends (16). This arrangement results in a small size and thus a very
economical work. The grindstone (17) is on
beveled around the circumference, in turn to prevent opposing engagement during grinding.

The advantages achieved by the invention are in particular that different machining sequences in staggered Arrangement to each other can be carried out on a grinding machine. Another object of the invention made that the work sequences take place in a confined space

709615 / D034

for description, Franz Lanz, ° aul Scnünle, 9 September 1975

and thus also largely avoided in all dangers can be. iJie invention has another task made that cutting with iii3.fe a stepless, readable Angle adjustment can be properly sanded for cutting the meat to maintain the edge to lengthen the cutting. Furthermore, the invention has made it its task that the grindstone (4) very runs slowly, so a very low cutting speed in order to prevent the cutting edge from heating up during grinding and thus a change in the structure of the material. This is supported by the direct action of a ■ coolant on the "tool, this will cause heat cracks or oar cracks on the cutting edge avoided, this measure is important in order to be able to process the meat or the / urst, no breaking out of the cutting to get.

In Fig. 10 it shows the arrangement of a very simplified knife guide (18j, in which, with one slot (20) each on the right and left of the grinding stone (17), a linen knife guide (18J is arranged. This knife guide ( 18 ^ is only attached to part of the circumference of the grinding stone (17) and the slot (20) is inclined from top to bottom, or from the outside to the inside of the grinding stone, so that readjustment while maintaining the cutting angle of the knife (19 ), is no longer necessary. The length of the knife (19) to be sharpened is pressed against the grindstone (17) in that the opposite side of the cutting surface is supported in the slot (20) of the knife guide (18; and thus as the fulcrum of the This simple knife guide (18) has the effect that no adjustment is required for a constant cutting angle of the knife (19), whereas conventional machines on the market have axial adjustment possibilities and see Fig are rather expensive.

709815/0034

Claims (7)

on the L> e spelling, Franz banz, Paul ochönle, 9. oept, 1975 Protection claims (1.! Grinding machine for ϊ-.esser and cutting with straight or convex cutting edge, for heresies, grinding shops and the same, for sharpening knives, ocher and the like . «, Characterized in that various coordinated work sequences in different Levels can be done on one machine. 2. Grinding machine for i-eaters and cutting with straight or crowned cutting edge according to claims 1, characterized in that that the whetstone (4) has a low cutting speed may have in order to prevent ivaarrißbildung. 3. Grinder for better and cut with straight or Crowned cutting edge according to Claims 1 to 2, characterized in that the grinding, polishing and the ready-to-shave Pulling off, as coordinated work sequences, done on a machine. km grinding machine for knives and blades with a straight or convex cutting edge according to claims 1 to 3, characterized in that the cutting edge is guided during grinding with the aid of a stepless angle adjustment. 5. Grinding machine for knives and cutting with straight or convex cutting edge according to claims 1 to 4, characterized in that the grindstone (4), polishing wheel (.6), honing wheel (7 ) have an incline to the axial plane in order to engage in opposite directions To prevent grinding. ORIGINAL INSPECTED 709815/0034 Leaf 254371 for description (protection claims), Franz Lanz,; 'aul Schönle Sept. 9, 1975 r * - "" "~~ 6, grinding machine for i-'esser and cutting with straight or spherical cutting edge according to claims 1 to 5 »thereby ge - indicates that a rigid knife guide (.18) with a guide slot (20) arranged on the circumference of the grindstone (17) is and at an angle to the middle of the grinding wheel thickness runs, which at the same time has the squint angle. 7. Grinding machine for Kesser and cutting with straight or convex cutting edge according to claims 1 to 6, characterized in that that the slot (20) as a guide angle and as a support for the hessian (19) or as: ") reh.r> point for that Pressing against the grindstone (17) is used. 709815/0034