Laser cutting machine with deviation rectification adjustment structure

Abstract

The utility model relates to laser cutting technical field discloses a laser cutting machine with deviation rectifying adjustment structure, including the box, is seted up cutting groove in the box inside, the middle part of cutting groove both sides inner wall is provided with cutting and polishing mechanism, cutting and polishing mechanism includes the slide rail fixed connection in cutting groove both sides inner wall middle part lower extreme respectively. In the utility model, for traditional laser cutting machine, the laser cutting machine is equipped with deviation rectifying mechanism, whether the measured object is skew is detected through the laser sensor set in the opening, and the cut object is positioned through the glass artificial observation provided at the top, the accurate rotation of the plurality of cylinders driven by the second servo motor and the correction of the push block on both sides are regulated through the cooperation control panel, and the cut object is rectified and adjusted, can ensure the accuracy of cutting process, improve production efficiency, reduce product loss.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, and in particular to a laser cutting machine with a correction and adjustment structure. Background Technology

[0002] A laser cutting machine is a CNC machine tool that uses a high-energy laser beam to precisely cut materials. It focuses the laser through an optical system, generating high temperatures that melt, vaporize, or ablate the material, achieving high-precision and high-efficiency cutting. Suitable for various materials such as metals, plastics, and wood, it is widely used in industrial manufacturing, automotive, electronics, and medical fields, offering advantages such as non-contact processing, smooth cuts, and a high degree of automation.

[0003] However, existing laser cutting machines still have drawbacks. First, before cutting, the object to be cut needs to be placed in the correct position manually; otherwise, the laser cutter cannot accurately position the object. Also, after the object is cut, it needs to be moved away manually. Furthermore, during the laser cutting process, the object being cut will produce molten material, and existing laser cutting machines lack a sample processing section to remove burrs.

[0004] Therefore, those skilled in the art have provided a laser cutting machine with a correction and adjustment structure to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a laser cutting machine with a deviation correction and adjustment structure. Compared to traditional laser cutting machines, this machine is equipped with a deviation correction mechanism. A laser sensor installed in the opening detects whether the workpiece is skewed, and the workpiece is positioned manually through a glass panel on top. The control panel, in conjunction with a second servo motor that precisely rotates multiple rollers and adjusts the correction of push blocks on both sides, provides a deviation correction and adjustment structure for the workpiece. This ensures the accuracy of the cutting process, improves production efficiency, and reduces product waste.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A laser cutting machine with a correction and adjustment structure includes a housing. A cutting groove is formed inside the housing. A cutting and grinding mechanism is located in the middle of the inner walls on both sides of the cutting groove. The cutting and grinding mechanism includes slide rails fixedly connected to the lower ends of the middle sections of the inner walls on both sides of the cutting groove. Two first sliders are slidably connected to the front and rear ends of the upper surfaces of the slide rails. A first linear motor is located at the lower end inside the first slider. Second stators are fixedly connected to the inner walls on both sides of the first slider. Sliding rods are fixedly connected to the inner walls on both sides of the first slider. Second sliders are slidably connected to the outer walls of the sliding rods. A laser groove is formed at the center of the lower surface of the slider. A first electric telescopic rod is fixedly connected to the center of the top surface of the laser groove. A laser cutter is fixedly connected to the output end of the first electric telescopic rod. A third slider is slidably connected to the outer wall of the front end of the slider. A grinding groove is formed on the outer wall of the front end of the third slider. A first servo motor is fixedly connected to the center of the top surface of the grinding groove. A threaded rod is fixedly connected to the output end of the first servo motor. Limit rods are fixedly connected to both sides of the top surface of the grinding groove. A threaded block is threadedly connected to the outer wall of the threaded rod. A grinding machine is fixedly connected to the outer wall of the rear end of the threaded block. A correction mechanism is provided on the bottom surface of the cutting groove. The correction mechanism includes multiple fixed shafts rotatably connected to the lower ends of the inner walls on both sides of the cutting groove. The correction mechanism also includes a second servo motor, a third servo motor, and a second electric telescopic rod. Spiked rollers are fixedly connected to the middle of the outer wall of each fixed shaft. A first pulley and a second pulley are fixedly connected to one side of the outer wall of each fixed shaft. The second servo motor is fixedly connected to one side of the front end of the bottom surface of the cutting groove. A motor pulley is fixedly connected to the output end of the second servo motor. A second electric telescopic rod is fixedly connected to the lower end of the middle of the inner wall of the cutting groove. A push block is fixedly connected to the output end of the second electric telescopic rod. The correction mechanism includes detection grooves respectively opened on the bottom surface and the inner bottom surface of the opening. Bidirectional threaded rods are rotatably connected to the inner walls on both sides of the detection groove. A fourth slider is threadedly connected to both sides of the outer wall of the bidirectional threaded rod. A laser emitter is fixedly connected to the lower end of the upper fourth slider, and a laser receiver is fixedly connected to the upper end of the lower fourth slider. A third pulley is fixedly connected to one side of the outer wall of each of the two bidirectional threaded rods.

[0007] Through the above technical solution, compared with traditional laser cutting machines, this laser cutting machine is equipped with a cutting and grinding mechanism. The operator observes through the glass on the top and uses the control panel to control the movement of multiple sliders to assist the laser cutter and the grinding machine, so that the cut object is ground. The cutting and grinding steps are completed in one processing, reducing the need for subsequent processing, reducing labor costs, and improving production efficiency. At the same time, the improvement of grinding and cutting in one unit reduces the space requirements for setting up laser cutting machines and grinding machines separately, which is extremely advantageous for production sites with small spaces.

[0008] Furthermore, openings are provided on the outer walls of both the front and rear ends of the box, and glass is fixedly connected to the top surface of the cutting groove.

[0009] The above technical solution allows the object to be cut to enter the machine, while also making it convenient for staff to observe it.

[0010] Furthermore, a control panel is fixedly connected to one side of the outer wall of the housing. The control panel is electrically connected to the first linear motor, the second linear motor, the first electric telescopic rod, the first servo motor, the grinder, the laser cutter, the second servo motor, the laser emitter, the laser receiver, the third servo motor, and the second electric telescopic rod.

[0011] The above technical solutions enable the internal electrical system to operate stably.

[0012] Furthermore, a first stator is fixedly connected to the upper end of the middle part of the inner wall on both sides of the cutting groove, and the first linear motor is slidably connected to the first stator.

[0013] Through the above technical solution, the first linear motor can make the first slider slide stably along the slide rail in the axial direction.

[0014] Furthermore, a second linear motor is provided at the upper end of the second slider and the third slider, the second linear motor is slidably connected to the second stator, and a sliding groove is provided at the middle end of the second slider and the third slider.

[0015] Through the above technical solution, the second linear motor can make the second and third sliders slide stably along the slide rod in the axial direction.

[0016] Furthermore, a threaded groove is provided at the center of the upper surface of the threaded block, and limit grooves are provided on both sides of the upper surface of the threaded block.

[0017] Through the above technical solution, the threaded groove can make the threaded block rise and fall with the rotation of the threaded rod, and the limiting groove can prevent the threaded block from rotating with the rotation of the threaded rod with the assistance of the limiting rod.

[0018] Furthermore, the outer walls of the first pulley, the second pulley, and the motor pulley are all fitted with a first toothed belt. The third servo motor is fixedly connected to the front end inside one side of the housing. The lower end of the third pulley is fixedly connected to the output end of the third servo motor. The outer wall of the third pulley is fitted with a second toothed belt.

[0019] The above technical solution allows the spiked roller to rotate synchronously with the output of the second servo motor, making it easier to move the object being cut precisely and to detect the degree of skewness of the object being cut.

[0020] Furthermore, a grinding disc is fixedly connected to the output end of the grinding machine.

[0021] The above technical solution enables the grinder to drive the grinding disc to rotate at high speed and grind the object being cut.

[0022] This utility model has the following beneficial effects: 1. The present invention proposes a laser cutting machine with a deviation correction and adjustment structure. Compared with traditional laser cutting machines, this laser cutting machine is equipped with a deviation correction mechanism. The laser sensor set in the opening detects whether the object being measured is skewed. Then, the object being cut is positioned by manual observation through the glass on the top. With the control panel, the second servo motor drives the precise rotation of multiple rollers and controls the correction of the push blocks on both sides. The deviation correction and adjustment structure of the object being cut can ensure the accuracy of the cutting process, improve production efficiency, and reduce product loss.

[0023] 2. The laser cutting machine with a correction and adjustment structure proposed in this utility model is different from traditional laser cutting machines. This laser cutting machine is equipped with a cutting and grinding mechanism. The operator observes through the glass on the top and controls multiple sliders through the control panel to assist the movement of the laser cutter and the grinding machine, so that the cut object is ground. The cutting and grinding steps are completed in one processing step, reducing the need for subsequent processing, reducing labor costs, and improving production efficiency. At the same time, the improvement of grinding and cutting in one step reduces the space requirements for setting up laser cutting machines and grinding machines separately, which is extremely advantageous for production sites with small spaces. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a laser cutting machine with a correction and adjustment structure proposed in this utility model; Figure 2 This is a side sectional view of a laser cutting machine with a correction and adjustment structure proposed in this utility model; Figure 3 This is a cross-sectional view of a laser cutting machine with a correction and adjustment structure proposed in this utility model; Figure 4 This is a schematic diagram of the cutting and grinding mechanism of a laser cutting machine with a correction and adjustment structure proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a cross-sectional view of the grinding structure of a laser cutting machine with a correction and adjustment structure proposed in this utility model; Figure 7 This is a schematic diagram of the correction mechanism of a laser cutting machine with a correction and adjustment structure proposed in this utility model; Figure 8This is a schematic diagram of the opening laser detection of a laser cutting machine with a correction and adjustment structure proposed in this utility model. Legend: 1. Box body; 2. Opening; 3. Cutting groove; 4. Glass; 5. Cutting and grinding mechanism; 501. Slide rail; 502. First stator; 503. First linear motor; 504. First slider; 505. Second stator; 506. Second linear motor; 507. Second slider; 508. Laser groove; 509. First electric telescopic rod; 510. Laser cutter; 511. Third slider; 512. Grinding groove; 513. First servo motor; 514. Threaded rod; 515. Limiting rod; 516. Threaded block; 517. Grinding machine; 518. Grinding disc; 519. Threaded groove; 520. Limiting groove; 521. Slide groove; 522. Slide rod; 6. Correction mechanism; 601. Second servo motor; 602. Motor pulley; 603. First toothed belt; 604. Fixed shaft; 605. First pulley; 606. Second pulley; 607. Spiked roller; 608. Second electric telescopic rod; 609. Push block; 610. Detection groove; 611. Bidirectional threaded rod; 612. Laser emitter; 613. Laser receiver; 614. Second toothed belt; 615. Third pulley; 616. Third servo motor; 617. Fourth slider; 7. Control panel; Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] One specific embodiment of this utility model is provided: Reference Figure 1 , Figure 3 and Figure 4A laser cutting machine with a correction and adjustment structure includes a housing 1. A cutting groove 3 is formed inside the housing 1. A cutting and grinding mechanism 5 is arranged in the middle of the inner walls on both sides of the cutting groove 3. The cutting and grinding mechanism 5 includes slide rails 501 fixedly connected to the lower ends of the middle of the inner walls on both sides of the cutting groove 3. Two first sliders 504 are slidably connected to the front and rear ends of the upper surface of the slide rails 501. A first linear motor 503 is arranged in the lower end of the inner wall of the first slider 504. Second stators 505 are fixedly connected to the inner walls on both sides of the first slider 504. Slide rods 522 are fixedly connected to the inner walls on both sides of the first slider 504. A second slider 507 is slidably connected to the outer wall of the slide rods 522. The lower surface of the second slider 507... A laser groove 508 is provided at the center. A first electric telescopic rod 509 is fixedly connected to the middle of the top surface of the laser groove 508. A laser cutter 510 is fixedly connected to the output end of the first electric telescopic rod 509. A third slider 511 is slidably connected to the outer wall of the front slide rod 522. A grinding groove 512 is provided on the outer wall of the front end of the third slider 511. A first servo motor 513 is fixedly connected to the center of the top surface of the grinding groove 512. A threaded rod 514 is fixedly connected to the output end of the first servo motor 513. Limit rods 515 are fixedly connected to both sides of the top surface of the grinding groove 512. A threaded block 516 is threadedly connected to the outer wall of the threaded rod 514. A grinding machine 517 is fixedly connected to the outer wall of the rear end of the threaded block 516.

[0027] Reference Figure 2 , Figure 7 and Figure 8A correction mechanism 6 is provided on the inner bottom surface of the cutting groove 3. The correction mechanism 6 includes multiple fixed shafts 604 rotatably connected to the lower ends of the inner walls on both sides of the cutting groove 3. The correction mechanism 6 also includes a second servo motor 601, a third servo motor 616, and a second electric telescopic rod 608. Spiked rollers 607 are fixedly connected to the middle of the outer wall of each fixed shaft 604. A first pulley 605 and a second pulley 606 are fixedly connected to the outer wall of one side of the fixed shaft 604, respectively. The second servo motor 601 is fixedly connected to one side of the front end of the inner bottom surface of the cutting groove 3. A motor pulley 602 is fixedly connected to the output end of the second servo motor 601. The second electric telescopic rod 608 is fixedly connected to the lower end of the middle of the inner wall of the cutting groove 3. A push block 609 is fixedly connected to the output end of the second electric telescopic rod 608. The correction mechanism 6 includes detection grooves 610 respectively opened on the inner bottom surface and inner bottom surface of the opening 2. Bidirectional... The threaded rod 611 has a fourth slider 617 threadedly connected to both sides of its outer wall. The lower end of the upper fourth slider 617 is fixedly connected to a laser emitter 612, and the upper end of the lower fourth slider 617 is fixedly connected to a laser receiver 613. A third pulley 615 is fixedly connected to one side of the outer wall of each of the two double-sided threaded rods 611. Compared with traditional laser cutting machines, this laser cutting machine is equipped with a cutting and grinding mechanism 5. The operator observes through the glass 4 on the top and controls the movement of multiple sliders assisted by the laser cutter 510 and the grinder 517 through the control panel 7, so that the cut object is ground. The cutting and grinding steps are completed in one processing, reducing the need for subsequent processing, reducing labor costs, and improving production efficiency. At the same time, the improvement of integrated grinding and cutting reduces the space requirements for setting up laser cutting machines and grinding machines separately, which is extremely advantageous for production sites with small spaces.

[0028] Reference Figure 4 , Figure 5 and Figure 6The outer walls of the front and rear ends of the housing 1 have openings 2. A glass 4 is fixedly connected to the top surface of the cutting groove 3, allowing the object to be cut to enter the machine and facilitating observation by the operator. A control panel 7 is fixedly connected to one side of the outer wall of the housing 1. The control panel 7 is connected to the first linear motor 503, the second linear motor 506, the first electric telescopic rod 509, the first servo motor 513, the grinder 517, the laser cutter 510, the second servo motor 601, the laser emitter 612, the laser receiver 613, the third servo motor 616, and the second electric telescopic rod 600. 8. Electrical connection ensures stable operation of the internal power mechanism. A first stator 502 is fixedly connected to the upper end of the middle of the inner walls on both sides of the cutting groove 3. A first linear motor 503 is slidably connected to the first stator 502. The first linear motor 503 allows the first slider 504 to slide stably along the slide rail 501 axially. A second linear motor 506 is provided at the upper end of the second slider 507 and the third slider 511. The second linear motor 506 is slidably connected to the second stator 505. A groove 521 is provided at the middle of the second slider 507 and the third slider 511. The linear motor 506 enables the second slider 507 and the third slider 511 to slide stably along the slide rod 522 in the axial direction. A threaded groove 519 is formed at the center of the upper surface of the threaded block 516, and limit grooves 520 are formed on both sides of the upper surface of the threaded block 516. The threaded groove 519 allows the threaded block 516 to rise and fall with the rotation of the threaded rod 514. The limit grooves 520, with the assistance of the limit rod 515, prevent the threaded block 516 from rotating with the threaded rod 514. The outer walls of the first pulley 605, the second pulley 606, and the motor pulley 602 are all fitted with... The first toothed belt 603 and the third servo motor 616 are fixedly connected to the front end and lower end of one side of the housing 1. The third pulley 615 is fixedly connected to the output end of the third servo motor 616. The outer wall of the third pulley 615 is fitted with a second toothed belt 614, which can make the spiked roller 607 rotate synchronously with the output of the second servo motor 601, making it easier to move the object being cut accurately. At the same time, the degree of skewness of the object being cut is detected. The output end of the grinder 517 is fixedly connected to a grinding disc 518, which can drive the grinder 517 to rotate at high speed to grind the object being cut.

[0029] Working Principle: The laser cutting machine housing 1 has a control panel 7 on one side. This control panel 7 controls the operation of the second servo motor 601, the third servo motor 616, the laser emitter 612, the laser receiver 613, and the second electric telescopic rod 608. Before the object to be cut is transferred into the machine body through the opening 2 by the conveyor belt, the width of the object is manually measured. Then, the control panel 7 is operated to rotate the third servo motor 616. Through the cooperation of the third pulley 615 and the second toothed belt 614, the laser detection devices on both sides are moved. When the object to be cut is transferred to the threaded spiked roller 607, it will be detected by the blocking detection device set in the opening 2 to observe whether it is skewed. Through the observation through the top glass 4, the control panel 7 is manually operated to rotate the second servo motor 601. The rotation of the output end of the second servo motor 601 will... The rotation of the motor pulley 602, through the transmission of the first toothed belt 603, causes the first pulley 605 to rotate synchronously with the motor pulley 602. Since the second pulley 606, the spiked roller 607, and the first pulley 605 are fixedly connected to the fixed shaft 604, the first pulley 605, the second pulley 606, and the spiked roller 607 will rotate synchronously. Due to the transmission of the first toothed belt 603, multiple spiked rollers 607 rotate synchronously with the motor pulley 602, transporting the object to be cut to the center position. Then, the second electric telescopic rod 608, fixed to the inner walls on both sides of the middle of the cutting groove 3, will drive the push block 609 to push the object to be cut synchronously and adjust its angle. After the cutting and grinding are completed, the spiked roller 607 will transport the object to the other side opening 2 for output. At the same time, the spikes on the spiked roller 607 can effectively prevent the laser from penetrating the object to be cut and burning the inside of the spiked roller 607. The laser cutting machine housing 1 has a control panel 7 on one side. The control panel 7 controls the operation of the first linear motor 503, the second linear motor 506, the first electric telescopic rod 509, the first servo motor 513, the grinder 517, and the laser cutter 510. When the machine starts working, the first linear motor 503 drives the first slider 504 to move along the axial direction of the first stator 502 to the desired position. Because the second stator 505 is fixed to the first slider 504, it will also move. Then, the second linear motor 506 will also move along the axial direction of the second stator 505 to the desired position. An electric telescopic rod 509 will drive the laser cutter 510 to descend for cutting. Through the top glass 4, the operator can manually operate the control panel 7 to position and move the laser cutter throughout the process. After the cutting is completed, according to the above-mentioned movement principle, the second slider 507 will be removed from the working area, and the third slider 511 will be moved to the required position. The first servo motor 513 drives the threaded rod 514 to rotate. Because the limit rod 515 restricts the rotation of the threaded block 516, the threaded block 516 will drive the grinding machine 517 and the grinding disc 518 to rise and fall. The grinding machine 517 drives the grinding disc 518 to rotate for grinding.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A laser cutting machine with a correction and adjustment structure, comprising a housing, characterized in that: The housing has a cutting groove inside. A cutting and grinding mechanism is located in the middle of the inner walls on both sides of the cutting groove. The cutting and grinding mechanism includes slide rails fixedly connected to the lower ends of the inner walls on both sides of the cutting groove. Two first sliders are slidably connected to the front and rear ends of the upper surface of the slide rails. A first linear motor is located at the lower end of the interior of each first slider. Second stators are fixedly connected to the inner walls on both sides of the first slider. Slide rods are fixedly connected to the inner walls on both sides of the first slider. A second slider is slidably connected to the outer wall of the slide rod. A laser groove is formed at the center of the lower surface of the second slider. A first electric telescopic rod is fixedly connected to the middle of the top surface of the laser groove. A laser cutter is fixedly connected to the output end of the first electric telescopic rod. A third slider is slidably connected to the outer wall of the front slide rod. A grinding groove is formed on the outer wall of the front end of the third slider. A first servo motor is fixedly connected to the center of the top surface of the grinding groove. A threaded rod is fixedly connected to the output end of the first servo motor. Limit rods are fixedly connected to both sides of the top surface of the grinding groove. A threaded block is threadedly connected to the outer wall of the threaded rod. A grinding machine is fixedly connected to the outer wall of the rear end of the threaded block. A correction mechanism is provided on the bottom surface of the cutting groove. The correction mechanism includes multiple fixed shafts rotatably connected to the lower ends of the inner walls on both sides of the cutting groove. The correction mechanism also includes a second servo motor, a third servo motor, and a second electric telescopic rod. Spiked rollers are fixedly connected to the middle of the outer wall of each fixed shaft. A first pulley and a second pulley are fixedly connected to one side of the outer wall of each fixed shaft. The second servo motor is fixedly connected to one side of the front end of the bottom surface of the cutting groove. A motor pulley is fixedly connected to the output end of the second servo motor. A second electric telescopic rod is fixedly connected to the lower end of the middle of the inner wall of the cutting groove. A push block is fixedly connected to the output end of the second electric telescopic rod. The correction mechanism includes detection grooves respectively opened on the top surface and the bottom surface of the opening. Bidirectional threaded rods are rotatably connected to the inner walls on both sides of the detection groove. A fourth slider is threadedly connected to both sides of the outer wall of the bidirectional threaded rod. A laser emitter is fixedly connected to the lower surface of the upper fourth slider, and a laser receiver is fixedly connected to the upper surface of the lower fourth slider. A third pulley is fixedly connected to one side of the outer wall of each of the two bidirectional threaded rods.

2. A laser cutting machine with a correction and adjustment structure according to claim 1, characterized in that: The outer walls of the front and rear ends of the box are provided with openings, and glass is fixedly connected to the inner top surface of the cutting groove.

3. A laser cutting machine with a correction and adjustment structure according to claim 1, characterized in that: A control panel is fixedly connected to one side of the outer wall of the housing. The control panel is electrically connected to the first linear motor, the second linear motor, the first electric telescopic rod, the first servo motor, the grinder, the laser cutter, the second servo motor, the laser emitter, the laser receiver, the third servo motor, and the second electric telescopic rod.

4. A laser cutting machine with a correction and adjustment structure according to claim 1, characterized in that: The upper end of the middle part of the inner wall on both sides of the cutting groove is fixedly connected to the first stator, and the first linear motor is slidably connected to the first stator.

5. A laser cutting machine with a correction and adjustment structure according to claim 1, characterized in that: The upper ends of the second slider and the third slider are each provided with a second linear motor, which is slidably connected to the second stator. The middle ends of the outer walls of the second slider and the third slider are each provided with a sliding groove.

6. A laser cutting machine with a correction and adjustment structure according to claim 1, characterized in that: A threaded groove is provided at the center of the upper surface of the threaded block, and limit grooves are provided on both sides of the upper surface of the threaded block.

7. A laser cutting machine with a correction and adjustment structure according to claim 1, characterized in that: The first pulley, the second pulley, and the motor pulley are all fitted with a first toothed belt on their outer walls. The third servo motor is fixedly connected to the front end inside one side of the housing. The lower end of the third pulley is fixedly connected to the output end of the third servo motor. The outer wall of the third pulley is fitted with a second toothed belt.

8. A laser cutting machine with a correction and adjustment structure according to claim 1, characterized in that: A grinding disc is fixedly connected to the output end of the grinder.

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