A crystal glass stone flat grinding machine

Abstract

The present invention provides a crystal glass stone flat grinder, which relates to the technical field of crystal glass stone processing equipment. A transmission mechanism is arranged on the flat grinder bed, and the transmission mechanism includes a first driving wheel, a first driven wheel and a transmission belt. The first driving wheel is connected to a first reduction box, and the first reduction box is connected to a first motor. A grinding head unit is arranged above the transmission belt, and a clamping mechanism is arranged between the grinding head unit and the transmission belt. The grinding head unit is installed on a column, and a guide rail is arranged on the flat grinder bed. The benefit of the present invention is that a clamping mechanism is arranged to clamp and limit the crystal glass stone in transmission to prevent the crystal glass stone from shifting, and the first water outlet hole and the second water outlet hole of the grinding wheel of the grinding head unit can divert water to the surface of the crystal glass stone to the surroundings, which is beneficial to the cooling of the grinding wheel and the lubrication between the grinding wheel and the crystal glass stone, thereby ensuring product quality.

Description

Technical Field

[0001] The invention relates to the technical field of crystal glass stone processing equipment, in particular to a crystal glass stone flat grinding machine. Background Art

[0002] Crystal glass stone refers to the general term for materials that are mined from natural rock and processed into block or plate shapes. The two most basic types of crystal glass stones used in the building decoration industry are natural crystal glass stone and artificial crystal glass stone. Natural crystal glass stones include marble, granite, limestone, etc. The natural crystal glass stones used for building decoration are mainly granite and marble. Natural crystal glass stone is one of the oldest civil engineering materials. Natural crystal glass stone has high compressive strength, good wear resistance and durability. After processing, the surface is beautiful and decorative. The resources are widely distributed, the reserves are rich, it is easy to obtain materials locally, and the production cost is low. It is the main material for building city walls, bridges, houses, roads and water conservancy projects in ancient and modern civil engineering. It is one of the main decorative materials in modern civil engineering.

[0003] As a high-end building decoration material, crystal glass stone is widely used in indoor and outdoor decoration design, curtain wall decoration and public facilities construction. At present, the common crystal glass stones on the market are mainly divided into natural stone, artificial stone and marble. Whether it is natural crystal glass stone or synthetic crystal glass stone, the surface is generally rough and needs to be polished to get a dazzling effect. At present, flat grinders are basically used to polish crystal glass stone, but the flat grinders currently used generally have problems such as poor structure, poor compatibility or unsatisfactory polishing effect, which seriously affect the quality of the product. Summary of the invention

[0004] The present invention overcomes the shortcomings of the prior art and provides a crystal glass stone flat grinder, which is provided with a clamping mechanism to clamp and limit the crystal glass stone in transmission to prevent the crystal glass stone from slipping, and the reciprocating motion mechanism can make the grinding head unit move back and forth regularly to grind the crystal glass stone, and the first water outlet hole and the second water outlet hole of the grinding wheel of the grinding head unit can divert water to the crystal glass stone surface to the surrounding areas, which is beneficial to the cooling of the grinding wheel and the lubrication between the grinding wheel and the crystal glass stone, thereby ensuring product quality.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] A crystal glass stone flat grinding machine comprises a flat grinding machine bed, a transmission mechanism is arranged on the flat grinding machine bed, the transmission mechanism comprises a first driving wheel and a first driven wheel, the first driving wheel is connected to the first driven wheel through a transmission belt, the first driving wheel is connected to a first reduction box, the first reduction box is connected to a first motor, a grinding head unit is arranged above the transmission belt, a clamping mechanism is arranged between the grinding head unit and the transmission belt, the grinding head unit is mounted on a column, a guide rail is arranged on the flat grinding machine bed, the column is slidably connected to the guide rail, and the column is connected to a reciprocating motion mechanism.

[0007] Preferably, the grinding head unit includes a plurality of grinding motors forming a linear queue, a water inlet is provided at the end of the grinding motor, a turntable is connected to the grinding motor, and also includes a first water channel arranged on the central axis of the grinding motor, the first water channel runs through the grinding motor and the turntable, a grinding wheel is connected below the turntable, a dispersion water chamber is provided in the middle of the grinding wheel, the dispersion water chamber is communicated with the first water channel, a second water channel is provided in the grinding wheel, a first water outlet is provided on the lower surface of the grinding wheel, and a second water outlet is provided on the side, the first water outlet and the second water outlet are both communicated with the second water channel, and also includes a water tank, the water tank is connected to one end of a water inlet pipe, the other end of the water inlet pipe is connected to the water inlet, the water tank is connected to a lifting mechanism, and the lifting mechanism is connected to the column.

[0008] Preferably, the lifting mechanism includes an integral lifting plate group of a grinding head, a clamping block is arranged at the rear of the integral lifting plate group of the grinding head, a sliding groove is arranged at the corresponding position of the column, the clamping block is slidably connected in the sliding groove, the integral lifting plate group of the grinding head is threadedly connected with a screw, the screw is connected to the first box body, a first worm mechanism and a reduction mechanism are arranged in the first box body, the reduction mechanism includes a first gear and a second gear meshing with each other, the first gear is sleeved and installed in the first synchronous shaft, and the first synchronous shaft is connected to the second motor; the first worm mechanism includes a first worm wheel and a first worm that cooperate with each other, the first worm is connected to the upper end of the screw, and the first worm wheel is coaxially connected to the second gear.

[0009] Preferably, the clamping mechanism includes a first mounting plate and a second mounting plate, a second driving wheel and a second driven wheel are arranged on the first mounting plate or the second mounting plate, the second driving wheel is connected to the second driven wheel by a clamping belt, the second driving wheel is connected to the third motor, and a "7"-shaped hook-type limiting plate is arranged on the first mounting plate and the second mounting plate, the clamping belt is arranged in a stepped shape matching the hook-type limiting plate, and the outer end surface of the clamping belt is on the outer end surface of the hook-type limiting plate.

[0010] Preferably, a reverse thread nut is provided on the first mounting plate, and a forward thread nut is provided on the second mounting plate, the reverse thread nut and the forward thread nut are connected to each other through a forward and reverse ball screw, the end of the forward and reverse ball screw is connected to a second worm mechanism, the second worm mechanism is connected to a fourth motor, the second worm mechanism includes a second worm connected to the end of the forward and reverse ball screw, and a second worm wheel connected to a second synchronous shaft, and the second synchronous shaft is connected to the fourth motor.

[0011] Preferably, the reciprocating motion mechanism includes a fifth motor, the fifth motor is connected to the second reduction box, the second reduction box is connected to the third synchronous shaft, and also includes a drive plate, the drive plate is connected to the column, an eccentric bearing is also provided in the drive plate, the third synchronous shaft is connected to the eccentric bearing, support plates are provided on both sides of the second reduction box, the support plates are fixedly connected to the flat grinding machine body, and the third synchronous shaft is rotatably connected to the support plates.

[0012] Preferably, the column is an inverted "7"-shaped column.

[0013] Preferably, the number of the second water channels is 2, which are arranged perpendicular to each other, and the distribution of the first water outlets corresponds to that of the second water channels.

[0014] Preferably, a load-bearing plate is provided below the conveyor belt.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] A clamping mechanism is arranged above the conveyor belt, and the clamping belt in the clamping mechanism can clamp and limit the crystal glass stone in transmission to prevent the crystal glass stone from slipping, and the distance between the first mounting plate and the second mounting plate can be adjusted by rotating the forward and reverse ball screw, which is suitable for crystal glass stones of different widths. During the grinding process, the reciprocating motion mechanism can make the grinding head unit move back and forth regularly to grind the crystal glass stone, and the first water outlet hole and the second water outlet hole of the grinding wheel of the grinding head unit, the water in the water tank can be discharged from the first water outlet hole and the second water outlet hole, and flow to the surrounding areas and be diverted to the surface of the crystal glass stone, which is beneficial to the cooling of the grinding wheel and the lubrication between the crystal glass stone, the grinding effect is good, and the product quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the crystal glass stone flat grinding machine from the front perspective;

[0019] Figure 2 yes Figure 1 The schematic diagram of the structure of the grinding head unit is cut along the AA section and removed;

[0020] Figure 3 yes Figure 2 Enlarged view of circle B in the middle;

[0021] Figure 4 yes Figure 2 Schematic diagram of the structure viewed from direction C;

[0022] Figure 5 This is a schematic diagram of the structure of the crystal glass stone flat grinding machine from the rear perspective;

[0023] Figure 6 is a schematic diagram of the connection between the second worm gear mechanism, the fourth motor and the second synchronous shaft when viewed from the horizontal direction;

[0024] Figure 7 yes Figure 5 Enlarged view of circle D in the figure;

[0025] Figure 8 It is a side view of the crystal glass stone flat grinding machine;

[0026] Fig. 9 yes Figure 8 Schematic diagram of the EE section;

[0027] Fig.10 yes Figure 8 A schematic diagram of the structure of the second motor, the first housing and the first synchronous shaft viewed from the direction F in the middle;

[0028] Fig.11 It is a side view of the grinding motor;

[0029] Fig.12 It is a schematic diagram of the structure of the grinding wheel;

[0030] Fig.13 yes Fig.11 Schematic diagram of the structure after cutting off the GG section;

[0031] Fig.14 It is a schematic diagram of the structure of the grinding motor;

[0032] Fig.15 It is a structural schematic diagram of the central section view of the grinding motor.

[0033] In the figure: 1- flat grinding machine bed, 2- first driving wheel, 3- first driven wheel, 4- transmission belt, 5- first reduction box, 6- first motor, 7- grinding head unit, 8- clamping mechanism, 9- column, 10- guide rail, 11- reciprocating motion mechanism, 12- grinding motor, 13- water inlet, 14- turntable, 15- first water delivery channel, 16- grinding wheel, 17- dispersed water chamber, 18- second water delivery channel, 19- first water outlet, 20- second water outlet, 21- water tank, 22- water inlet pipe, 23- grinding head integral lifting plate group, 24- block, 25- slide, 26- screw, 27- first box, 28- first gear, 29- second gear, 30- The second motor, 31-the first worm wheel, 32-the first worm, 33-the first mounting plate, 34-the second mounting plate, 35-the second driving wheel, 36-the second driven wheel, 37-the clamping belt, 38-the third motor, 39-the hook-type limiting plate, 40-the reverse tooth nut, 41-the forward tooth nut, 42-the forward and reverse ball screw, 43-the second worm mechanism, 44-the fourth motor, 45-the second worm, 46-the second synchronous shaft, 47-the second worm wheel, 48-the fifth motor, 49-the second reduction box, 50-the third synchronous shaft, 51-the driving plate, 52-the eccentric bearing, 53-the support plate, 54-the crystal glass stone, 55-the first synchronous shaft, 56-the load-bearing plate. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0035] like Figures 1 to 15 As shown, a crystal glass stone flat grinder includes a flat grinder bed 1, on which a transmission mechanism is arranged, the transmission mechanism is used to transmit the crystal glass stone 54, the transmission mechanism includes a first driving wheel 2 and a first driven wheel 3, the first driving wheel 2 and the first driven wheel 3 are rotatably connected to the flat grinder bed 1, the first driving wheel 2 and the first driven wheel 3 are connected through a transmission belt 4, the first driving wheel 2 is connected to a first reduction box 5, the first reduction box 5 is connected to a first motor 6, the reduction box is a prior art, which has the function of reducing the rotation speed and increasing the torque, and is not described in detail here, the first motor 6 inputs power to the first reduction box 5, and the first reduction box 5 outputs power to the first driving wheel 2, thereby driving the transmission belt 4 to rotate, and transmitting the crystal glass stone 54, a load-bearing plate 56 is arranged below the transmission belt 4, and the load-bearing plate 56 is welded and fixed in the flat grinder bed 1, and has a supporting effect on the crystal glass stone 54.

[0036] A grinding head unit 7 is arranged above the conveyor belt 4. The grinding head unit 7 is used for grinding the crystal glass stone 54. The grinding head unit 7 includes a plurality of grinding motors 12 forming a linear queue. A water inlet 13 is arranged at the end of the grinding motor 12. A turntable 14 is connected to the grinding motor 12. The first water channel 15 is arranged on the central axis of the grinding motor 12. The first water channel 15 runs through the grinding motor 12 and the turntable 14. A grinding wheel 16 is connected to the lower part of the turntable 14. The grinding wheel 16 is connected to the turntable 14 by screws. A dispersion water chamber 17 is arranged in the middle of the grinding wheel 16. The dispersion water chamber 17 is connected to the first water channel 15. A second water channel 18 is arranged in the grinding wheel 16. A first water outlet 19 is arranged on the lower surface of the grinding wheel 16. , a second water outlet 20 is arranged on the side, the first water outlet 19 and the second water outlet 20 are both connected to the second water delivery channel 18, and also includes a water tank 21, the grinding motor 12 is fixedly connected to the water tank 21 by bolts, the water tank 21 is connected to one end of the water inlet pipe 22, and the other end of the water inlet pipe 22 is connected to the water inlet 13. The principle of this design is that the water in the water tank 21 will fall into the dispersed water cavity 17 through the water inlet 13 and the first water delivery channel 15. When the grinding wheel 16 rotates, the water in the dispersed water cavity 17 will flow into the second water delivery channel 18, and be discharged through the first water outlet 19 and the second water outlet 20, and flow to the surroundings and be diverted to the surface of the crystal glass stone, which is beneficial to the cooling of the grinding wheel 16 and the lubrication between the crystal glass stone 54, and the grinding effect is good. Fig.13 It can be seen that there are two second water channels 18, which are arranged perpendicular to each other. The distribution of the first water outlets 19 corresponds to the second water channels 18. The first water outlets 19 are opened on the second water channels 18 to allow water to flow out smoothly. In actual design, a water pump will also be provided in the water inlet pipe 22 to pump water in the water tank 21 into the grinding motor 12.

[0037] The water tank 21 is connected to a lifting mechanism, which is connected to the column 9. The design of the lifting mechanism helps to adjust the height position of the grinding motor 12 to adapt to the use of crystal glass stones 54 of different heights and sizes. The lifting mechanism includes a grinding head integral lifting plate group 23, such as Fig. 9 and Fig.10As shown, a block 24 is provided at the rear of the grinding head integral lifting plate group 23, and a slide groove 25 is provided at the corresponding position of the column 9. The block 24 is slidably connected in the slide groove 25. The grinding head integral lifting plate group 23 is threadedly connected with the screw 26, and the screw 26 is connected to the first box body 27. A first worm mechanism and a reduction mechanism are provided in the first box body 27. The reduction mechanism includes a first gear 28 and a second gear 29 that are meshed with each other. The diameter of the first gear 28 is smaller than the diameter of the second gear 29 to achieve the effect of deceleration. The first gear 28 is sleeved and installed in the first synchronous shaft 55. The first synchronous shaft 55 is connected to the second synchronous shaft 55. The motor 30 is connected; the first worm mechanism includes a first worm wheel 31 and a first worm 32 that cooperate with each other. The first worm 32 is connected to the upper end of the screw 26, and the first worm wheel 31 is coaxially connected to the second gear 29. Therefore, from the transmission principle, by controlling the rotation direction of the second motor 30, the screw 26 can be controlled to rotate forward or reverse, thereby achieving the purpose of driving the grinding motor 12 to rise or fall. The design of the first synchronous shaft 55 only requires one second motor 30 to achieve the purpose of controlling the rotation of multiple screws 26, which helps to control the smooth lifting and lowering of the grinding motor 12.

[0038] A clamping mechanism 8 is arranged between the grinding head unit 7 and the transmission belt 4. The clamping mechanism 8 is used for clamping and limiting the crystal glass stone 54 to prevent the crystal glass stone 54 from falling off during the processing. The clamping mechanism 8 includes a first mounting plate 33 and a second mounting plate 34. The first mounting plate 33 and the second mounting plate 34 are slidably connected to the flat grinding machine bed 1. A second driving wheel 35 and a second driven wheel 36 are arranged on the first mounting plate 33 or the second mounting plate 34. The second driving wheel 35 and the second driven wheel 36 are connected through a clamping belt 37. The second driving wheel 35 is connected to the third motor 38. The third motor 38 drives the second driving wheel 35 to rotate, thereby driving the clamping belt 37 to rotate, which has the function of clamping and assisting the transmission of the crystal glass stone 54. The clamping belt 37 is made of plastic material. Since it is difficult to achieve the limiting effect by the clamping belt 37 alone, Figure 4 As shown, a "7"-shaped hook-type limit plate 39 is provided on the first mounting plate 33 and the second mounting plate 34. The hook-type limit plate 39 is fixed to the first mounting plate 33 and the second mounting plate 34 by screws. The clamping belt 37 is arranged in a stepped shape matching the hook-type limit plate 39, and the outer end surface of the clamping belt 37 is located on the outer end surface of the hook-type limit plate.

[0039] Even if the clamping belt 37 can be connected with the crystal glass stone 54, the effect of assisting the crystal glass stone 54 to be transported forward is achieved. On the other hand, the setting of the hook-type limiting plate 39 has a certain limiting effect on the front and rear sides of the crystal glass stone 44. If there is only the clamping belt 37, it can be known from the manufacturing material that the clamping belt 37 is relatively soft and cannot achieve the effect of limiting and clamping the crystal glass stone 54. When the hook-type limiting plate 39 is set, the crystal glass stone 54 can be well limited and is not prone to deviation or slipping. Figure 3 and Figure 6 As shown, a reverse thread nut 40 is provided on the first mounting plate 33, and a forward thread nut 41 is provided on the second mounting plate 34. The reverse thread nut 40 and the forward thread nut 41 are connected through a forward and reverse ball screw 42. The end of the forward and reverse ball screw 42 is connected to a second worm mechanism 43. The second worm mechanism 43 is connected to a fourth motor 44. The second worm mechanism 43 includes a second worm 45 connected to the end of the forward and reverse ball screw 42, and a second worm wheel 47 connected to a second synchronous shaft 46. The second synchronous shaft 46 is connected to the fourth motor 44. It can be known from the transmission principle that by controlling the forward and reverse rotation of the fourth motor 44, the forward and reverse rotation of the forward and reverse ball screw 42 can be controlled, and finally the distance between the first mounting plate 33 and the second mounting plate 34 can be adjusted, that is, for crystal glass stones 54 of different widths, better clamping and limiting effects can be achieved, and the compatibility is good.

[0040] A guide rail 10 is provided on the flat grinding machine bed 1, and the column 9 is slidably connected to the guide rail 10. Figure 5 It can be seen that the column 9 is arranged in an inverted "7" shape, which helps to enhance the supporting strength of the column 9. The column 9 is connected to a reciprocating motion mechanism 11. The reciprocating motion mechanism 11 includes a fifth motor 48, the fifth motor 48 is connected to a second reduction box 49, the second reduction box 49 is connected to a third synchronous shaft 50, and also includes a drive plate 51, the drive plate 51 is welded to the column 9, an eccentric bearing 52 is also arranged in the drive plate 51, the third synchronous shaft 50 is connected to the eccentric bearing 52, and support plates 53 are arranged on both sides of the second reduction box 49 to support The lower end of the plate 53 is welded to the flat grinding machine bed 1, and the third synchronous shaft 50 is rotatably connected to the support plate 53. From the structural principle, it can be seen that when the fifth motor 48 is started, power is input to the second reduction box 49, and the second reduction box 49 outputs power to the third synchronous shaft 50 to rotate. The third synchronous shaft 50 drives the eccentric bearing 52 to rotate, thereby driving the column 9 to reciprocate through the drive plate 51, that is, driving the grinding head unit 7 to reciprocate back and forth, and regularly grinding on the crystal glass stone 54 to maintain the stability of the product and ensure product quality.

[0041] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crystal glass stone flat grinding machine, characterized in that: It includes a flat grinding machine bed, the flat grinding machine bed is provided with a transmission mechanism, the transmission mechanism includes a first driving wheel and a first driven wheel, the first driving wheel is connected to the first driven wheel through a transmission belt, the first driving wheel is connected to a first reduction box, the first reduction box is connected to a first motor, a grinding head unit is arranged above the transmission belt, a clamping mechanism is arranged between the grinding head unit and the transmission belt, the grinding head unit is installed on a column, a guide rail is arranged on the flat grinding machine bed, the column is slidably connected to the guide rail, and the column is connected to a reciprocating motion mechanism; The grinding head unit includes a plurality of grinding motors forming a linear array, a water inlet is provided at the end of the grinding motor, a turntable is connected to the grinding motor, and also includes a first water delivery channel provided on the central axis of the grinding motor, the first water delivery channel runs through the grinding motor and the turntable, a grinding wheel is connected below the turntable, a dispersion water cavity is provided in the middle of the grinding wheel, the dispersion water cavity is communicated with the first water delivery channel, a second water delivery channel is provided in the grinding wheel, a first water outlet is provided on the lower surface of the grinding wheel, and a second water outlet is provided on the side, the first water outlet and the second water outlet are both communicated with the second water delivery channel, and also includes a water tank, the water tank is connected to one end of a water inlet pipe, the other end of the water inlet pipe is connected to the water inlet, the water tank is connected to a lifting mechanism, and the lifting mechanism is connected to the column; The clamping mechanism comprises a first mounting plate and a second mounting plate, a second driving wheel and a second driven wheel are arranged on the first mounting plate or the second mounting plate, the second driving wheel is connected to the second driven wheel through a clamping belt, the second driving wheel is connected to the third motor, and a "7"-shaped hook-type limiting plate is arranged on both the first mounting plate and the second mounting plate, the clamping belt is arranged in a stepped shape matching the hook-type limiting plate, and the outer end surface of the clamping belt is located on the outer end surface of the hook-type limiting plate; The reciprocating motion mechanism includes a fifth motor, which is connected to a second reduction gearbox, which is connected to a third synchronous shaft, and also includes a drive plate, which is connected to the column, an eccentric bearing is also provided in the drive plate, and the third synchronous shaft is connected to the eccentric bearing, support plates are provided on both sides of the second reduction gearbox, which are fixedly connected to the flat grinding machine body, and the third synchronous shaft is rotatably connected to the support plates.

2. A crystal glass stone flat grinding machine according to claim 1, characterized in that: The lifting mechanism includes an integral lifting plate group of a grinding head, a clamping block is arranged at the rear of the integral lifting plate group of the grinding head, a slide groove is arranged at the corresponding position of the column, the clamping block is slidably connected in the slide groove, the integral lifting plate group of the grinding head is threadedly connected with a screw, the screw is connected with the first box body, a first worm mechanism and a reduction mechanism are arranged in the first box body, the reduction mechanism includes a first gear and a second gear meshing with each other, the first gear is sleeved and installed in the first synchronous shaft, and the first synchronous shaft is connected to the second motor; the first worm mechanism includes a first worm wheel and a first worm that cooperate with each other, the first worm is connected to the upper end of the screw, and the first worm wheel is coaxially connected to the second gear.

3. A crystal glass stone flat grinding machine according to claim 2, characterized in that: A reverse thread nut is provided on the first mounting plate, and a forward thread nut is provided on the second mounting plate. The reverse thread nut and the forward thread nut are connected to each other through a forward and reverse ball screw. The end of the forward and reverse ball screw is connected to a second worm mechanism. The second worm mechanism is connected to a fourth motor. The second worm mechanism includes a second worm connected to the end of the forward and reverse ball screw, and a second worm wheel connected to a second synchronous shaft. The second synchronous shaft is connected to the fourth motor.

4. A crystal glass stone flat grinding machine according to any one of claims 1 to 3, characterized in that: The column is an inverted "7" shaped column.

5. The crystal glass stone flat grinding machine according to claim 2, characterized in that: The number of the second water channels is 2, which are arranged perpendicular to each other, and the distribution of the first water outlets corresponds to the second water channels.

6. A crystal glass stone flat grinding machine according to claim 1, characterized in that: A load-bearing plate is arranged below the conveyor belt.

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