Environment-friendly glass edge grinding machine

Abstract

The utility model discloses an environment-friendly glass edge grinding machine, and relates to the field of glass edge grinding machines. The cleaning mechanism comprises a supporting frame, a workpiece, an electric control cabinet and a containing table, the cleaning mechanism comprises a mounting frame, the inner side of the mounting frame is in sliding connection with a sliding plate through a sliding groove, a third air cylinder is arranged on one side of the sliding plate, and a cleaning piece is arranged at the bottom of the sliding plate. A third air cylinder is controlled to start to work, a piston rod of the third air cylinder stretches out to push a sliding plate to slide along a sliding groove in the inner wall of a mounting frame, in the sliding process, a cleaning piece at the bottom of the sliding plate can clean and sweep the surface of the workpiece, and pollutants such as dust and impurities on the surface of the workpiece can be effectively removed; the cleaning degree of the workpiece is remarkably improved, and due to the fact that the surface of the workpiece is fully cleaned, machining errors caused by impurities can be avoided in the subsequent machining process.

Description

Technical Field

[0001] The utility model relates to the field of glass edge grinding machines, in particular to an environmentally friendly glass edge grinding machine. Background Art

[0002] Glass edge grinding machine is one of the earliest and most widely used mechanical equipment in glass deep processing equipment. This equipment is mainly used for grinding glass and making some special shapes. It can grind and polish glass through the grinding head motor and grinding wheel. Different types of edge grinding machines, such as ordinary single-sided / double-sided edge grinding machines, can complete rough grinding, fine grinding, polishing and other processes at one time. According to the different edge grinding methods, glass edge grinding machines can be divided into multiple categories, including but not limited to linear edge grinding machines, oblique edge grinding machines, circular edge grinding machines, single-arm special-shaped edge grinding machines and template edge grinding machines, etc. These different types of machines can meet various glass edge grinding and shaping needs.

[0003] In the current use of glass edge grinding machines, it mainly relies on mechanical arm structures such as linear motors, and uses negative pressure suction cups to transport the glass to the edge grinding area. However, in actual operation, due to the instability of the glass storage environment, the glass surface in some factory areas may be contaminated with impurities such as dust or foam plastics. These attachments will cause the negative pressure suction cup to be unstable or loose during the adsorption process, thereby affecting the transportation accuracy of the glass. This situation will not only reduce the accuracy of grinding, but may also have an adverse effect on the entire edge grinding process, and ultimately affect the overall quality of the glass products. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an environmentally friendly glass edge grinding machine to solve the technical problem that impurities may exist on the glass surface, resulting in weak adsorption or low transportation accuracy when transported by a negative pressure suction cup.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an environmentally friendly glass edge grinding machine, comprising a support frame, a workpiece, an electric control cabinet and a placement table, a supporting assembly is arranged on one side of the support frame, the supporting assembly comprises a support rod, a fixed plate is arranged on the top of the support rod, a supporting plate is slidably connected to the top of the fixed plate, a supporting plate is provided on the surface of the supporting plate, a supporting groove is provided on the outer side of the supporting plate, the cleaning mechanism comprises a mounting frame, a sliding plate is slidably connected to the inner side of the mounting frame through a sliding groove, a third cylinder is arranged on one side of the sliding plate, and a cleaning sheet is arranged on the bottom of the sliding plate.

[0006] By adopting the above technical solution, the third cylinder is controlled to start working. The start of the third cylinder pushes the sliding plate to slide in the sliding groove on the inner wall of the mounting frame. A cleaning sheet is installed at the bottom of the sliding plate, which can clean the surface of the workpiece while sliding.

[0007] Furthermore, the cleaning sheet abuts against the top surface of the workpiece and is used to clean the surface of the workpiece.

[0008] By adopting the above technical solution, the cleaning sheet can directly contact the dirt and impurities on the surface of the workpiece. When the sliding plate slides in the sliding groove on the inner wall of the mounting frame, the cleaning sheet will sweep the surface of the workpiece, effectively removing dust, oil and other pollutants attached to the workpiece.

[0009] Furthermore, a pressure sensor is provided on one side of the surface of the receiving groove for monitoring the placement relationship between the workpiece and the receiving groove.

[0010] By adopting the above technical solution, when the workpiece is placed in the receiving groove, the pressure sensor can directly sense the pressure exerted by the workpiece on it. By monitoring this pressure change, the system can accurately determine whether the workpiece has been correctly placed in the receiving groove, thereby ensuring the correct position and stable state of the workpiece before processing.

[0011] Furthermore, a negative pressure groove is provided on the surface of the receiving groove, and a rubber ring is provided at the corner of the receiving groove, and the rubber ring is used to support the workpiece.

[0012] By adopting the above technical solution, when the workpiece is placed inside the receiving groove, the air in the negative pressure groove can be extracted through the negative pressure device to form a negative pressure area. The design of the negative pressure groove helps to tightly adsorb the workpiece in the receiving groove to ensure its stability and processing accuracy.

[0013] Furthermore, a negative pressure hole is opened at the center of the negative pressure groove, and the negative pressure groove is connected to an external negative pressure device through a negative pressure tube.

[0014] By adopting the above technical solution, the negative pressure tank can be connected to the external negative pressure device through the negative pressure hole. When the external negative pressure device is started, it can draw out the air in the negative pressure tank through the negative pressure pipe, thereby forming a negative pressure area in the negative pressure tank.

[0015] Furthermore, a pressure gauge is provided on the negative pressure tube, and the pressure gauge is used to monitor the pressure intensity inside the negative pressure tank and the negative pressure tube.

[0016] By adopting the above technical solution, the operator can intuitively monitor the pressure intensity inside the negative pressure tank and the negative pressure tube. By reading the value on the pressure gauge, the operator can timely understand the working status of the negative pressure system and ensure that it operates within the normal range.

[0017] Furthermore, a first cylinder is disposed on one side of the electric control cabinet, and a first linear motor is disposed on one side of the bottom of the electric control cabinet, and the first cylinder is used to limit the position of the workpiece.

[0018] By adopting the above technical solution, when the workpiece is placed in the processing area, the first cylinder can extend the piston rod to limit the position of the workpiece. By adjusting the extension length and position of the first cylinder, it can be ensured that the workpiece always maintains the correct position and posture during the processing.

[0019] Furthermore, two second cylinders are provided on one side of the first linear motor, and negative pressure suction cups are provided at the telescopic ends of the two second cylinders.

[0020] By adopting the above technical solution, the second cylinder can perform precise linear motion under the drive of the first linear motor. When the workpiece needs to be moved, the telescopic end of the second cylinder can firmly adsorb the workpiece through the negative pressure suction cup.

[0021] Furthermore, a second linear motor is disposed on one side of the top of the support frame, a driving motor is disposed on one side of the second linear motor, and a grinding disc is disposed on the output end of the driving motor.

[0022] By adopting the above technical solution, the grinding disc can perform precise linear motion under the drive of the second linear motor to meet different processing requirements.

[0023] By adopting the above technical solution, the baffle helps to prevent the splashing of chips generated during the grinding process, thereby protecting the safety of the operator and ensuring the cleanliness of the processing area.

[0024] In summary, the utility model mainly has the following beneficial effects:

[0025] 1. The utility model controls the third cylinder to start working through the cleaning mechanism, and the piston rod of the third cylinder extends to push the sliding plate to slide along the sliding groove of the inner wall of the mounting frame. During this sliding process, the cleaning sheet at the bottom of the sliding plate cleans and sweeps the surface of the workpiece, which can effectively remove dust, impurities and other pollutants on the surface of the workpiece, and significantly improve the cleanliness of the workpiece. Since the surface of the workpiece is fully cleaned, the processing error caused by the presence of impurities can be avoided in the subsequent processing process. In this way, the processing accuracy of the workpiece is significantly improved, and the quality and qualified rate of the final product are also improved. At the same time, this automated cleaning method also greatly improves production efficiency and reduces manual cleaning costs;

[0026] 2. The utility model provides a negative pressure groove, a negative pressure hole, a negative pressure tube and a pressure gauge. The pressure gauge displays the pressure value of the negative pressure area in real time, so that the operator can intuitively understand the negative pressure state in the negative pressure groove. When the pressure gauge reading is less than the specified value, it usually means that there is a gap or the fit between the workpiece and the negative pressure groove and the rubber ring is not tight enough. At the same time, the change in the pressure reading can be used as a basis for judging whether the holding groove effectively limits the workpiece. If the reading does not meet the standard, it indicates that the workpiece may not be correctly placed in the predetermined area, or there is a risk of displacement. This instant feedback mechanism can remind the operator to adjust the workpiece position in time to ensure its stability and processing accuracy, thereby improving the quality and efficiency of subsequent transportation and processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0028] Figure 2 It is a structural schematic diagram of the holding component of the utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the cleaning mechanism of the utility model;

[0030] Figure 4 For this utility model Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0031] In the figure: 1. support frame; 2. supporting assembly; 201. support rod; 202. fixing plate; 203. supporting plate; 204. supporting groove; 205. negative pressure groove; 206. rubber ring; 207. pressure sensor; 3. electric control cabinet; 4. first cylinder; 501. first linear motor; 502. second cylinder; 503. negative pressure suction cup; 6. cleaning mechanism; 601. mounting frame; 602. slide groove; 603. sliding plate; 604. third cylinder; 605. cleaning sheet; 7. negative pressure hole; 8. negative pressure pipe; 9. pressure gauge; 10. workpiece; 11. placing table; 12. second linear motor; 13. driving motor; 14. grinding disc; 15. baffle. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0033] The following describes an embodiment of the utility model based on its overall structure.

[0034] Embodiment 1:

[0035] An environmentally friendly glass edge grinding machine, such as Figure 1-Figure 4 As shown, it includes a support frame 1, a workpiece 10, an electric control cabinet 3 and a placement table 11. A receiving assembly 2 is arranged on one side of the support frame 1. The receiving assembly 2 includes a support rod 201. A fixed plate 202 is arranged on the top of the support rod 201. A receiving plate 203 is slidably connected to the top of the fixed plate 202. A receiving groove 204 is opened on the surface of the receiving plate 203. A cleaning mechanism 6 is arranged on the outer side of the receiving plate 203. The cleaning mechanism 6 includes a mounting frame 601. A sliding plate 603 is slidably connected to the inner side of the mounting frame 601 through a sliding groove 602. A third cylinder 604 is arranged on one side of the sliding plate 603. A cleaning sheet 60 is arranged on the bottom of the sliding plate 603. 5. Control the third cylinder 604 to start working. The start of the third cylinder 604 pushes the sliding plate 603 to slide in the sliding groove 602 on the inner wall of the mounting frame 601. A cleaning sheet 605 is installed at the bottom of the sliding plate 603, which can clean the surface of the workpiece 10 while sliding. At the same time, through this automated cleaning method, the cleanliness of the surface of the workpiece 10 is significantly improved. The cleaned surface of the workpiece 10 can reduce the interference of impurities in the subsequent processing process, thereby improving the processing accuracy. The improvement of processing accuracy not only means the improvement of product quality and qualified rate, but also can effectively extend the service life and performance of the workpiece 10.

[0036] See also Figure 2 , Figure 3 , Figure 4 The cleaning sheet 605 is in contact with the top surface of the workpiece 10 and is used to clean the surface of the workpiece 10, so that the cleaning sheet 605 can directly contact the dirt and impurities on the surface of the workpiece 10. When the sliding plate 603 slides in the sliding groove 602 on the inner wall of the mounting frame 601, the cleaning sheet 605 will sweep the surface of the workpiece 10, effectively removing dust, oil and other pollutants attached to the workpiece 10. At the same time, the use of the cleaning sheet 605 not only improves the cleanliness of the workpiece surface, but also creates better conditions for subsequent processing. The clean surface of the workpiece 10 can reduce the resistance during processing and improve the processing efficiency and accuracy.

[0037] See also Figure 2 , Figure 3 , Figure 4A pressure sensor 207 is provided on one side of the surface of the receiving groove 204 for monitoring the placement relationship between the workpiece 10 and the receiving groove 204, so that when the workpiece 10 is placed in the receiving groove 204, the pressure sensor 207 can directly sense the pressure exerted on it by the workpiece 10. By monitoring this pressure change, the system can accurately determine whether the workpiece 10 has been correctly placed in the receiving groove 204, thereby ensuring the correct position and stable state of the workpiece 10 before processing. At the same time, this setting method also has the function of real-time feedback. Once the workpiece 10 is improperly placed or shifted, resulting in abnormal pressure value, the pressure sensor 207 will immediately transmit a signal to the electric control cabinet 3, and the electric control cabinet 3 will then make corresponding adjustments based on the received signal, such as controlling the relevant mechanism to make corrections or triggering an alarm to prompt the operator, so as to ensure that the workpiece 10 can be placed in the predetermined position in a timely and accurate manner.

[0038] Embodiment 2:

[0039] See also Figure 2 , Figure 3 , Figure 4 A negative pressure groove 205 is provided on the surface of the receiving groove 204, and rubber rings 206 are provided at the corners of the receiving groove 204. The rubber ring 206 is used to support the workpiece 10, so that when the workpiece 10 is placed inside the receiving groove 204, the air in the negative pressure groove 205 can be extracted by the negative pressure device to form a negative pressure area. The design of the negative pressure groove 205 helps to tightly adsorb the workpiece 10 in the receiving groove 204 to ensure its stability and processing accuracy. At the same time, rubber rings 206 are provided at the corners of the receiving groove 204. The rubber ring 206 has good elasticity and sealing performance. When the workpiece 10 is placed in the receiving groove 204, the rubber ring 206 can support the edge of the workpiece 10 to prevent it from shifting or tilting. This supporting effect further enhances the stability of the workpiece 10 during the processing, which helps to improve the processing quality and efficiency.

[0040] See also Figure 2 , Figure 3 , Figure 4 A negative pressure hole 7 is opened at the center position of the negative pressure groove 205, and the negative pressure groove 205 is connected with the external negative pressure device through the negative pressure pipe 8, so that the negative pressure groove 205 can be connected with the external negative pressure device through the negative pressure hole 7. When the external negative pressure device is started, it can extract the air in the negative pressure groove 205 through the negative pressure pipe 8, thereby forming a negative pressure area in the negative pressure groove 205. At the same time, the workpiece 10 can be tightly adsorbed in the negative pressure groove 205 to ensure its stability and processing accuracy. The connection between the negative pressure hole 7 and the negative pressure pipe 8 allows the negative pressure state in the negative pressure groove 205 to be quickly and evenly distributed, thereby effectively fixing the workpiece 10 at a predetermined position.

[0041] See also Figure 2 , Figure 3 , Figure 4 A pressure gauge 9 is provided on the negative pressure pipe 8, and the pressure gauge 9 is used to monitor the pressure intensity inside the negative pressure groove 205 and the negative pressure pipe 8, so that the operator can intuitively monitor the pressure intensity inside the negative pressure groove 205 and the negative pressure pipe 8. By reading the value on the pressure gauge 9, the operating status of the negative pressure system can be timely understood to ensure that it operates within the normal range. At the same time, the setting of the pressure gauge 9 helps to discover potential problems. Once the pressure inside the negative pressure groove 205 or the negative pressure pipe 8 is abnormal, such as the pressure is too high or too low, the pressure gauge 9 will immediately reflect it, which reminds the operator to check in time and take corresponding measures to prevent adverse effects on the processing of the workpiece 10 due to pressure problems.

[0042] See also Figure 1 , Figure 2 A first cylinder 4 is arranged on one side of the electric control cabinet 3, and a first linear motor 501 is arranged on one side of the bottom of the electric control cabinet 3. The first cylinder 4 is used to limit the position of the workpiece 10, so that when the workpiece 10 is placed in the processing area, the first cylinder 4 can extend the piston rod to limit the position of the workpiece 10. By adjusting the extension length and position of the first cylinder 4, it can be ensured that the workpiece 10 always maintains the correct position and posture during the processing. At the same time, the limiting effect of the first cylinder 4 helps to prevent the workpiece 10 from moving or deflecting during the processing, thereby improving the processing accuracy and quality. This position limitation method is not only stable and reliable, but also easy to operate, and can effectively improve the efficiency and stability of the entire processing process.

[0043] See also Figure 1 , Figure 2 Two second cylinders 502 are arranged on one side of the first linear motor 501, and negative pressure suction cups 503 are arranged at the telescopic ends of the two second cylinders 502, so that the second cylinders 502 can perform precise linear motion under the drive of the first linear motor 501. When the workpiece 10 needs to be moved, the telescopic end of the second cylinder 502 can firmly adsorb the workpiece 10 through the negative pressure suction cup 503. At the same time, the coordinated use of the two second cylinders 502 enhances the stability and efficiency of the handling of the workpiece 10, and the negative pressure suction cup 503 further ensures the safety of the workpiece 10 during the movement, and effectively prevents the workpiece 10 from slipping or being damaged.

[0044] See also Figure 1 , Figure 2A second linear motor 12 is arranged on one side of the top of the support frame 1, a driving motor 13 is arranged on one side of the second linear motor 12, and a grinding disc 14 is arranged on the output end of the driving motor 13, so that the grinding disc 14 can perform precise linear motion under the drive of the second linear motor 12 to meet different processing requirements. At the same time, the driving motor 13 is arranged on one side of the second linear motor 12, and its output end is directly connected to the grinding disc 14. When the driving motor 13 is started, it can drive the grinding disc 14 to rotate at a high speed, thereby grinding the workpiece 10, making the grinding process more stable and efficient, and easy to realize automatic control.

[0045] See also Figure 1 , Figure 2 A baffle 15 and a water spray pipe are provided on the outside of the grinding disc 14. The baffle 15 helps to prevent the debris generated during the grinding process from splashing, thereby protecting the safety of the operator and ensuring the cleanliness of the processing area. At the same time, the setting of the water spray pipe can cool the grinding disc 14 and the workpiece 10 in time to prevent the high temperature generated by grinding from damaging the grinding disc 14 and the workpiece 10. The water sprayed from the water spray pipe can also help wash away the debris generated during the grinding process, further keeping the processing area clean.

[0046] The implementation principle of the utility model is as follows: first, the workpiece 10 is placed into the receiving groove 204. At this time, the pressure sensor 207 is subjected to the gravity pressure of the workpiece 10, and the signal is transmitted to the electric control cabinet 3, and the third cylinder 604 is controlled to work, pushing the sliding plate 603 to slide in the sliding groove 602 on the inner wall of the mounting frame 601. During the sliding process, the cleaning sheet 605 at the bottom is used to clean and sweep the surface of the workpiece 10 to improve the cleanliness of the surface of the workpiece 10. Then, the first linear motor 501 works to vertically oppose the position of the second cylinder 502 to the workpiece 10, and utilizes the expansion and contraction of the second cylinder 502 and the adsorption effect of the negative pressure suction cup 503 to adsorb the workpiece 10. Then, the first linear motor 501 is used to move the workpiece 10. The workpiece 10 is transported until the workpiece 10 is vertically opposite to the placement table 11. Then, the negative pressure suction cup 503 is controlled to reduce the adsorption force on the workpiece 10, and the workpiece 10 is placed on the top of the placement table 11. After that, the workpiece 10 is pressed and limited by the first cylinder 4. Then, the placement table 11 drives the workpiece 10 to rotate through the bottom motor. At the same time, the driving motor 13 on one side is moved by the second linear motor 12, and the grinding disc 14 at the output end of the driving motor 13 is used to perform the edge grinding operation on the workpiece 10. After the edge grinding operation is completed, the first linear motor 501, the second cylinder 502 and the negative pressure suction cup 503 are used to transport the processed workpiece 10 out of the edge grinding area of ​​the edge grinding machine to complete the edge grinding operation of the workpiece 10.

[0047] The workpiece 10 is placed inside the receiving groove 204, and the workpiece 10 is monitored by the pressure sensor 207. Then, the electric control cabinet 3 controls the external negative pressure device to turn the negative pressure tube 8, the negative pressure hole 7 and the negative pressure groove 205 into a negative pressure area. At the same time, with the sealing characteristics of the rubber ring 206, the workpiece 10 is adsorbed inside the negative pressure groove 205. At this time, the pressure value of the negative pressure area is displayed by the pressure gauge 9. When the reading of the pressure gauge 9 is less than the specified value, it means that the workpiece 10 is not closely matched with the negative pressure groove 205 and the rubber ring 206, and then it reflects that the receiving groove 204 fails to effectively limit the workpiece 10. Through the above method, the operator can be reminded that the workpiece 10 has not been placed in the predetermined area, thereby improving the subsequent movement and processing accuracy of the workpiece 10. When the second cylinder 502 and the negative pressure suction cup 503 are used to adsorb and displace the workpiece 10, the external negative pressure device reduces the adsorption strength of the negative pressure groove 205 on the workpiece 10.

[0048] Parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0049] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. An environmentally friendly glass edge grinding machine, characterized by: The invention comprises a support frame (1), a workpiece (10), an electric control cabinet (3) and a placing table (11); a receiving assembly (2) is arranged on one side of the support frame (1); the receiving assembly (2) comprises a support rod (201); a fixing plate (202) is arranged on the top of the support rod (201); a receiving plate (203) is slidably connected to the top of the fixing plate (202); a receiving groove (204) is provided on the surface of the receiving plate (203); a cleaning mechanism (6) is arranged on the outer side of the receiving plate (203); the cleaning mechanism (6) comprises a mounting frame (601); a sliding plate (603) is slidably connected to the inner side of the mounting frame (601) via a sliding groove (602); a third cylinder (604) is arranged on one side of the sliding plate (603); and a cleaning sheet (605) is arranged on the bottom of the sliding plate (603).

2. The environmentally friendly glass edge grinding machine according to claim 1, characterized in that: The cleaning sheet (605) abuts against the top surface of the workpiece (10) and is used to clean the surface of the workpiece (10).

3. The environmentally friendly glass edge grinding machine according to claim 1, characterized in that: A pressure sensor (207) is provided on one side of the surface of the receiving groove (204) for monitoring the placement relationship between the workpiece (10) and the receiving groove (204).

4. The environmentally friendly glass edge grinding machine according to claim 1, characterized in that: A negative pressure groove (205) is provided on the surface of the receiving groove (204), and a rubber ring (206) is provided at the corner of the receiving groove (204), and the rubber ring (206) is used to support the workpiece (10).

5. The environmentally friendly glass edge grinding machine according to claim 4, characterized in that: A negative pressure hole (7) is provided at the center of the negative pressure groove (205), and the negative pressure groove (205) is connected to an external negative pressure device via a negative pressure pipe (8).

6. The environmentally friendly glass edge grinding machine according to claim 5, characterized in that: The negative pressure pipe (8) is provided with a pressure gauge (9), and the pressure gauge (9) is used to monitor the pressure intensity inside the negative pressure tank (205) and the negative pressure pipe (8).

7. The environmentally friendly glass edge grinding machine according to claim 1, characterized in that: A first cylinder (4) is arranged on one side of the electric control cabinet (3), and a first linear motor (501) is arranged on one side of the bottom of the electric control cabinet (3); the first cylinder (4) is used to limit the position of the workpiece (10).

8. The environmentally friendly glass edge grinding machine according to claim 7, characterized in that: Two second cylinders (502) are arranged on one side of the first linear motor (501), and negative pressure suction cups (503) are arranged at the telescopic ends of the two second cylinders (502).

9. The environmentally friendly glass edge grinding machine according to claim 1, characterized in that: A second linear motor (12) is arranged on one side of the top of the support frame (1), a driving motor (13) is arranged on one side of the second linear motor (12), and a grinding disc (14) is arranged at the output end of the driving motor (13).

10. The environmentally friendly glass edge grinding machine according to claim 9, characterized in that: A baffle (15) and a water spray pipe are arranged on the outer side of the grinding disc (14).

Images