CN104128850A - Abrasive belt knife grinder of computer cutting table - Google Patents

Abstract

The invention discloses an abrasive belt sharpening device for a computerized cutting machine, which comprises a motor, a knife sharpening mechanism, an abrasive belt installed on the knife sharpening mechanism, and a knife sharpening telescopic mechanism. The main body is connected, the abrasive belt is driven to rotate by the motor, and the piston rod of the knife sharpening cylinder of the knife sharpening telescopic mechanism is retracted to drive the abrasive belt to contact the cutter to sharpen the knife through the pull cord. The advantages of the present invention are that because the abrasive belt is made of soft material, there will be no difficulty in adjusting the angle of the knife, and there will be no jagged edge of the cutting knife; the cutting efficiency is greatly improved, and the service life of the cutting knife is prolonged; the cost of the abrasive belt is low , more cost-effective.

Description

Abrasive belt sharpening device for computerized cutting machine

technical field

The invention relates to a sharpening device for a cutting machine, in particular to an abrasive belt sharpening device for a computerized cutting machine.

Background technique

The current sharpening devices for computerized cutting machines all use circular grinding wheel sheets or cylindrical double-wheel grinding wheels to sharpen the cutting knife, and the grinding wheel in the knife sharpening mechanism produces arc motion and The knife is sharpened in contact with the knife. This knife sharpening mechanism has the problems of difficult calibration and low knife adjustment efficiency when adjusting the angle between the grinding wheel and the knife edge surface. Whether it is a circular grinding wheel or a double-wheeled cylindrical grinding wheel, it will damage the cutting knife during the sharpening process, because the grinding wheel and the cutting knife are hard materials, and they are ground head-to-head. The sharpened blade is prone to saw teeth. shape, thereby affecting the cutting speed and quality of the computerized cutting machine, causing waste in all aspects, and the price is relatively expensive, which is not economical and practical.

Contents of the invention

The technical problem to be solved by the present invention is to provide an abrasive belt sharpening device for a computerized cutting machine that prolongs the service life of the cutting knife.

In order to solve the above technical problems, the present invention provides a computer cutting machine abrasive belt sharpening device, including a motor, a sharpening mechanism, an abrasive belt installed on the sharpening mechanism, and a sharpening telescopic mechanism. Rope is connected with the sharpening main body of the sharpening mechanism, and the abrasive belt is driven by the motor to rotate, and the sharpening cylinder piston rod of the sharpening telescopic mechanism is retracted to drive the abrasive belt to contact the cutter through the pull cord to sharpen the knife.

Described motor is contained on the fixed bracket of sharpening mechanism, and the driving shaft of sharpening is housed on the extension shaft of motor.

Described motor is to be fixed on the knife sharpening mechanism fixing support through motor lower fixing plate and sharpening knife fixing round bar, and motor stretches out the shaft and fixes sharpening knife driving shaft through sharpening knife fixing sleeve.

The knife sharpening mechanism comprises a knife sharpening main body, a knife sharpening driving wheel, a knife sharpening slave wheel, a knife sharpening piston body, a knife sharpening secondary wheel installation body and an abrasive belt, and the knife sharpening main body is equipped with a sharpening driving wheel and a knife sharpening piston body, The knife sharpening spring is contained in the knife sharpening piston body, and the abrasive belt is tensioned on the knife sharpening driving wheel and the knife sharpening slave wheel.

The sharpening driving wheel is a cylinder, and several annular rings of fixed abrasive belts protrude from the surface of the cylinder.

There is a piston pin on the grinding knife driving wheel to fix the grinding knife driving shaft, the two ends of the knife grinding driving wheel are equipped with bearings, the knife grinding driving shaft passes through the grinding knife main body and the knife grinding driving wheel is fixed on the grinding knife main body by the bearings at both ends On the top, the driving wheel can rotate flexibly after installation.

The said knife sharpening wheel is installed on the knife sharpening wheel mounting body, and the two ends of the knife sharpening wheel are equipped with bearings, and the knife sharpening wheel is installed in the recessed end serration of the knife sharpening wheel mounting body through the bearing shaft.

The sharpener is in the shape of one end protruding from the wheel mounting body and one end recessed. The protruding end includes several hollow cylinders. The cylinders are provided with U-shaped long grooves connected to the hollow cavity on one side. The hollow cavity of the cylinders A spring is installed inside, and the knife sharpening piston body is installed on the outer circumference of the cylinder protruding from the knife sharpening wheel mounting body, and the stop screw passes through the threaded hole of the knife sharpening piston body and penetrates into the U-shaped groove of the cylinder; the knife sharpening wheel mounting body The recessed end is serrated.

The abrasive belt is a long ring-shaped closed structure with a certain width.

The knife sharpening telescopic mechanism includes a knife sharpening cylinder, a stay cord, a spring and an adjusting mechanism. One end of the stay cord is fixed on the knife sharpening cylinder, and the stay cord passes through the sharpening positioning sleeve, the stay cord locking head and the tensioning unit successively. Rotate the pin and fix it in the hole of the pull cord locking head with bolts. The sharpened knife tightening positioning sleeve is fixed at the gap of the rotating tension piece, and the draw rope locking head is embedded in the upper cylindrical hole of the tightening rotating pin cylinder. The rope locking head and the tightening rotating pin are integrally fixed on the main body of the sharpening knife; the adjustment mechanism refers to the spring that adjusts the elastic force on the outer circle of the pulling rope between the tightening positioning sleeve and the pulling rope locking head, and adjusts the pulling rope lock. The position of the tight head, thereby adjusting the amount of compression of the spring to adjust the size of the elastic force. Sharpen the knife when the piston rod of the knife sharpening cylinder retracts, and the knife sharpening mechanism stops working when the piston rod stretches out.

The abrasive belt sharpening device of the computer cutting machine of the present invention is made of soft material and the cutting knife is of hard material. Grinding between them makes the sharpness of the cutting knife better and does not produce serrations, prolonging the service life of the cutting knife , and the cost of the abrasive belt is low, which is more cost-saving; and because of the different types of fabrics, it is very convenient to change the type of abrasive belt for better cutting work.

The superior effect of the present invention is:

1) Compared with the existing circular grinding wheel or cylindrical double-wheel grinding wheel sharpening structure, the present invention does not cause difficulty in adjusting the angle of the knife because the abrasive belt is a soft material, and does not produce jagged edges on the cutting knife;

2) Greatly improve the cutting efficiency and prolong the service life of the cutter;

3) The cost of the abrasive belt is low, which is more cost-saving;

4) Simple structure, convenient maintenance, disassembly and replacement, avoid overall waste, shorten work and time delays, and improve grinding efficiency.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is an exploded view of the sharpening mechanism of the present invention;

Fig. 3 is the structural representation of the sharpening telescoping mechanism of the present invention;

Fig. 4 is the embodiment figure of the present invention;

Explanation of symbols in the figure

1—sharpening main body; 2—sharpening piston body;

3—the mounting body of the sharpening wheel; 4—the sharpening driving wheel;

5—abrasive belt; 6—piston pin;

7—sharpening wheel; 8—bearing A;

9—Bearing shaft; 10—Bearing gasket;

11—sharpening spring; 12—bearing B;

13—major axis of piston body; 14—bearing pad;

15—sharpening pin from wheel axle; 16—bearing pad;

17—sharpening fixed sleeve; 18—rotating tensioning piece;

19—tightening the positioning sleeve A; 20—pull rope;

21—tighten the rotating pin; 22—pull rope locking head;

23—grinding drive shaft; 24—motor;

25—the lower fixing plate of the sharpening motor; 26—the sharpening round rod;

27—bearing pressure plate; 31—sharpening cylinder fixing plate;

32—knife sharpening cylinder; 33—knife sharpening telescopic fixed block;

34—sharpening steel wire connecting column; 35—tighten positioning sleeve B.

Detailed ways

Referring to the accompanying drawings, the present invention will be further described.

As shown in Figure 1, the present invention provides a kind of abrasive belt sharpening device for computer cutting machine, comprising motor 24, sharpening mechanism and abrasive belt 5 installed on the sharpening mechanism, sharpening telescopic mechanism, sharpening telescopic The mechanism is connected with the sharpening main body 1 of the knife sharpening mechanism through the pull cord 20, the abrasive belt 5 is driven to rotate by the motor 24, the piston rod of the sharpening cylinder 32 of the knife sharpening telescopic mechanism is retracted, and the abrasive belt 5 is driven by the pull cord 20 to contact the cutter Sharpen your knife.

As shown in Figure 2, described motor 24 is contained on the fixed support of sharpening mechanism, and sharpening driving shaft 23 is housed on the motor extension shaft. Motor 24 provides power for driving the whole sharpening mechanism.

As shown in Figure 2, described motor 24 is fixed on the knife sharpening mechanism fixed support through motor lower fixed plate 25 and knife sharpening round rod 26, and motor extension shaft fixes sharpening driving shaft 23 through sharpening fixed sleeve 17.

As shown in Figure 2, the knife sharpening mechanism includes a knife sharpening main body 1, a knife sharpening driving wheel 4, a knife sharpening slave wheel 7, a knife sharpening piston body 2, a knife sharpening wheel mounting body 3 and an abrasive belt 5, and the knife sharpening main body 1 is equipped with sharpening driving wheel 4 and sharpening piston body, and emery belt 5 is fixed on sharpening driving wheel 4 and sharpening from wheel 7. The sharpening spring 11 is contained in the sharpening piston body 2, and the abrasive belt 5 is tensioned on the sharpening driving wheel 4 and the sharpening wheel 7.

As shown in FIG. 2 , the sharpening driving wheel 4 is a cylinder, and several annular rings of fixed abrasive belts 5 protrude from the surface of the cylinder.

As shown in Figure 2, a piston pin is arranged on the sharpening driving wheel 4 to fix the sharpening driving shaft 23, the two ends of the sharpening driving wheel 4 are equipped with bearings B12, and the sharpening driving shaft 23 passes through the sharpening main body 1 and the grinding wheel. Knife driving wheel 4 is fixed on the knife sharpening main body 1 by two end bearings, and driving wheel 4 rotates flexibly after installation.

As shown in Figure 2, the said sharpening wheel 7 is installed on the sharpening wheel installation body 3, the two ends of the sharpening wheel 7 are equipped with bearings A8, and the sharpening wheel 6 is installed on the sharpening wheel 9 through the bearing shaft 9. In one end that is recessed from the wheel mounting body 3 in a jagged shape.

As shown in Figure 2, the said sharpener protrudes from the wheel mounting body 3 and has a concave shape at one end. The protruding end includes several hollow cylinders, and the cylinders are provided with a U-shape connected to the hollow cavity on one side. A long groove, a spring is housed in the cavity of the cylinder, the knife sharpening piston body 2 is installed on the outer circumference of the cylinder where the knife sharpening protrudes from the wheel mounting body 3, and a set screw passes through the threaded hole of the knife sharpening piston body 2 and runs through the cylinder U In the type groove; the end of the sharpening knife recessed from the wheel mounting body 3 is serrated.

As shown in FIG. 2 , the abrasive belt 5 is a long ring-shaped closed structure with a certain width. Glue is used to form a ring-shaped closed structure.

As shown in Figure 2, the rotating tightening piece 18 is fixed on the grinding knife fixing sleeve 17 by screws, and the tightening and locking head 22 is used to adjust the size between the tightening rotating locking nail 21 and the sharpening positioning sleeve 19 size.

As shown in Figure 3, the knife sharpening telescopic mechanism includes a knife sharpening cylinder 32, a stay cord 20, a spring and an adjustment mechanism, and one end of the stay cord 20 is fixed on the knife sharpening cylinder 32, and the stay cord 20 passes through the knife sharpening cylinder successively to tighten Positioning sleeve 19, stay cord locking head 22 and tightening rotation pin 21 are fixed in the hole of stay cord locking head 22 with bolts, sharpening knife tightening positioning sleeve 19 is fixed at the notch of rotating tensioning sheet 18, and the stay cord lock The tightening head 22 is embedded in the upper cylindrical hole of the tightening rotating pin 21 cylinder, and the pull cord locking head 22 and the tightening rotating pin 21 are integrally fixed on the sharpening body 1; the adjustment mechanism refers to the tightening positioning sleeve A19 and the pulling The stay cord outer circle in the middle of the rope lock head 22 is covered with a spring for adjusting the size of the elastic force, and the position of the stay cord lock head 22 is adjusted to adjust the compression amount of the spring to adjust the size of the elastic force.

As shown in Figure 3, the knife sharpening telescopic mechanism is that one end of the knife sharpening cylinder 32 is fixed on the knife sharpening cylinder fixed plate 31 by threaded bolts, and the other end of the knife sharpening cylinder 32 is connected with the knife sharpening steel wire connecting column 34, and the knife sharpening steel wire The connecting column 34 is limited in the upper hole of the knife sharpening telescopic fixed block 33, and can only move up and down following the knife sharpening cylinder 32. The knife sharpening steel wire connecting column 34 is connected with the stay rope 20 passing through the tightening positioning sleeve B35, and tightened The positioning sleeve B35 is fixed on the lower hole of the sharpening telescopic fixing block 33.

As shown in Figure 4, when the piston rod of the knife sharpening cylinder is retracted, the knife sharpening mechanism is pushed to the cutting knife by the pull cord, and the knife sharpening mechanism stops working when the piston rod stretches out.

Working principle of the present invention: when the control system of the computerized cutting machine detects that the knife needs to be sharpened, the knife is controlled to automatically rotate to a specified angle, the motor 24 is started, and the rotation of the motor 24 drives the sharpening drive shaft 23 to rotate, and the sharpening drive shaft 23 rotations drive the sharpening driving wheel 4 to rotate, thereby driving the abrasive belt 5 to rotate. While the abrasive belt 5 rotates, the knife sharpening cylinder 32 of the knife sharpening telescopic mechanism starts to work, and when the piston rod of the knife sharpening cylinder 32 retracts, the knife sharpening mechanism is driven by the stay cord 20 to push the knife, because the control system has calculated the angle, so The abrasive belt contacts the cutting knife and begins to sharpen the knife. After grinding one side of the knife, the control system controls the rotating holder of the fixed cutting knife to rotate to another specified angle, and the motor 24 reverses. Similarly, the abrasive belt grinds the other side of the cutting knife.

The abrasive belt sharpening device of the computer cutting bed of the present invention is made of soft material while the cutting knife is of hard material. Grinding between them makes the sharpness of the cutting knife better and does not produce serrations, prolonging the service life of the cutting knife , and the cost of the abrasive belt is low, more cost-saving, and the types of fabrics are different, it is very convenient to change the abrasive belt model for better cutting work.

The basic principles and main features of the present invention have been shown and described above, and those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the present invention also has various aspects without departing from the spirit and scope of the present invention. Variations and improvements, which fall within the scope of the claimed invention.

Claims (10)

1. a computerized marker abrasive band knife sharpening device, it is characterized in that: comprise motor, knife grinding mechanism and be arranged on abrasive band, the sharpening telescoping mechanism on knife grinding mechanism, sharpening telescoping mechanism is connected with the sharpening main body of knife grinding mechanism by stay cord, abrasive band is rotated by driven by motor, and the cutter grinding air cylinder piston rod of sharpening telescoping mechanism is retracted and driven abrasive band to contact sharpening with cut-off knife by stay cord.

2. computerized marker according to claim 1 abrasive band knife sharpening device, is characterized in that: described motor is contained on the fixed support of knife grinding mechanism, and sharpening driving shaft is housed on motor projecting shaft.

3. computerized marker according to claim 2 abrasive band knife sharpening device, is characterized in that: described motor is to be fixed on knife grinding mechanism fixed support through motor bottom plate and the fixing pole of whetting a knife, and motor projecting shaft is through the fixing sharpening driving shaft of sharpening fixed cover.

4. computerized marker according to claim 1 abrasive band knife sharpening device, it is characterized in that: described knife grinding mechanism comprises sharpening main body, sharpening driving wheel, sharpening trailing wheel, sharpening piston body, sharpening trailing wheel fixing body and abrasive band, sharpening driving wheel and sharpening piston body are housed in sharpening main body, sharpening spring is contained in sharpening piston body, and abrasive band is stretched on sharpening driving wheel and sharpening trailing wheel.

5. computerized marker according to claim 4 abrasive band knife sharpening device, is characterized in that: described sharpening driving wheel be one cylindrical, protrude the circular of several fixing abrasive bands on columniform surface.

6. computerized marker according to claim 4 abrasive band knife sharpening device, it is characterized in that: on described sharpening driving wheel, have piston pin to fix sharpening driving shaft, bearing is equipped with at the two ends of sharpening driving wheel, sharpening driving shaft is fixed in sharpening main body by bearings at both ends through sharpening main body and sharpening driving wheel, and driving wheel is installed rear flexible rotating.

7. computerized marker according to claim 4 abrasive band knife sharpening device, it is characterized in that: described sharpening trailing wheel is arranged on sharpening trailing wheel fixing body, bearing is equipped with at the two ends of sharpening trailing wheel, and sharpening trailing wheel is in bearing shaft is arranged on the recessed one end zigzag of sharpening trailing wheel fixing body.

8. according to the computerized marker abrasive band knife sharpening device described in claim 4 or 7, it is characterized in that: described sharpening trailing wheel fixing body is one end and protrudes, the shape that one end is recessed, protrude the cylinder that one end comprises several hollows, on cylinder, have with cavity is one-sided and be communicated with U-shaped elongated slot, cylindrical hollow is equipped with spring in chamber, sharpening piston body be arranged on sharpening trailing wheel fixing body protrude cylinder excircle, with set screw through sharpening piston body screwed hole in the U-shaped groove of cylinder; One end indentation that sharpening trailing wheel fixing body is recessed.

9. computerized marker according to claim 4 abrasive band knife sharpening device, is characterized in that: described abrasive band is rectangular ring seal structure.

10. computerized marker according to claim 1 abrasive band knife sharpening device, it is characterized in that: described sharpening telescoping mechanism comprises cutter grinding air cylinder, stay cord, spring and governor motion, one end of stay cord is fixed on cutter grinding air cylinder, stay cord is successively through the tension positioning sleeve of whetting a knife, stay cord locking head and tension rotation pin, and be fixed in stay cord locking head hole with bolt, the tension positioning sleeve of whetting a knife is fixed on rotation tension sheet indentation, there, stay cord locking head is embedded in the cylindrical upper cylindrical hole of tension rotation pin, stay cord locking head and tension rotation pin entirety are fixed in sharpening main body, governor motion refers to that on the stay cord cylindrical in the middle of tension positioning sleeve and stay cord locking head, cover has the spring that regulates elastic force.