Stone polishing machine

Abstract

A stone polishing machine comprises a rack, a belt conveying mechanism and a grinding head assembly. Two mounting cross beams are fixed on the rack, a horizontal supporting plate and a rack are arranged on the mounting cross beams, and a guide rail is arranged on the horizontal supporting plate; the grinding head assembly is arranged between the two installation cross beams and comprises a sliding seat and a grinding head, sliding blocks installed on the two guide rails are arranged on the two sides of the bottom face of the sliding seat respectively, a transmission rod and a motor are arranged on the sliding seat, the two ends of the transmission rod are connected with gears respectively, and the two gears are meshed with the two racks respectively; a first flexible sealing cover arranged above the horizontal supporting plate in a covering mode is arranged on the installation cross beam, and the first flexible sealing cover and the horizontal supporting plate form a cavity surrounding the guide rail. The two ends of the first flexible sealing cover are connected to the two ends of the installation cross beam correspondingly. The first flexible sealing cover is arranged above the guide rail in a covering mode, dust and water mist generated during stone polishing are prevented from falling on the guide rail, it is guaranteed that the sliding block can slide smoothly along the guide rail, and the stability of the polishing machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stone processing, in particular to a stone polishing machine. Background Art

[0002] When processing stone, it is usually polished by a polishing machine. At present, stone polishing machines usually use a belt conveyor mechanism installed on a frame to convey the stone. A plurality of grinding head assemblies are arranged on the frame along the conveying mechanism. When the stone is conveyed by the belt conveyor mechanism, the plurality of grinding head assemblies are used to polish the stone. Usually, it is necessary to make the grinding head assembly reciprocate along the width direction of the belt conveyor mechanism so that the grinding head at the bottom of the grinding head assembly can polish the surface of the stone multiple times. To do this, it is necessary to set a guide rail extending along the width direction of the belt conveyor mechanism and a driving mechanism on the frame; the mounting seat of the grinding head assembly is slidably installed on the guide rail; when polishing the stone, a large amount of dust is generated due to the grinding head polishing the surface of the stone. The dust often falls on the guide rail, causing wear of the guide rail, so that the grinding head assembly cannot reciprocate smoothly, affecting the normal operation of the polishing machine. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a stone polishing machine, which can prevent dust generated by grinding from affecting the reciprocating motion of the grinding head assembly and improve the stability of the polishing machine.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A stone polishing machine comprises a frame, a belt conveying mechanism installed on the frame and extending along the length direction of the frame, and a grinding head assembly;

[0006] Two mounting crossbeams are fixed on the frame and are arranged above the belt conveyor mechanism and extend in the width direction of the frame. The mounting crossbeams are provided with a horizontal support plate at the bottom thereof, and a rack located above the horizontal support plate and staggered with the horizontal support plate by a certain distance in the height direction. The horizontal support plate is provided with a guide rail extending in the width direction of the frame.

[0007] The grinding head assembly is placed between the two mounting cross beams, and includes a sliding seat and a grinding head protruding from the bottom surface of the sliding seat. Slide blocks installed on two guide rails are respectively arranged on both sides of the bottom surface of the sliding seat. A transmission rod and a motor for driving the transmission rod to rotate are arranged on the sliding seat. The two ends of the transmission rod protrude from the two sides of the sliding seat respectively, and the two ends of the transmission rod are respectively connected to a gear. The two gears are respectively placed under the two racks and mesh with the two racks respectively.

[0008] Each mounting crossbeam is provided with a first flexible sealing cover which is arranged above the horizontal support plate. The first flexible sealing cover and the horizontal support plate form a chamber surrounding the guide rail. The two ends of the first flexible sealing cover are respectively connected to the two ends of the mounting crossbeam, the middle part is disconnected, and the two sides of the disconnected part are respectively connected to the front end face and the rear end face of the sliding seat.

[0009] The cross-section of the first flexible sealing cover is an inverted U-shape, and the two sides of its bottom are respectively placed above the upper surface of the horizontal support plate and form a gap with the upper surface of the horizontal support plate. An outer baffle is fixed on both sides of the horizontal support plate, and the two outer baffles respectively block the outside of the two gaps.

[0010] Two inner baffles are fixed on the horizontal support plate and are respectively arranged on both sides of the guide rail. The two inner baffles are respectively shielded at the inner sides of the two gaps, and the height of the inner baffles is greater than the height of the guide rail.

[0011] The rack is provided with a waist-shaped hole extending in the height direction, the waist-shaped hole extending from one side of the rack to the other side, and the rack is fixed on the mounting crossbeam by a locking bolt that crosses the waist-shaped hole and the mounting crossbeam.

[0012] A lubricating oil groove is fixedly connected to the mounting crossbeam and is located below the rack and directly opposite to the rack. At least a portion of the bottom of the gear is embedded in the lubricating oil groove.

[0013] A horizontal baffle shielding the top of the rack is arranged on the installation beam.

[0014] A second flexible sealing cover is arranged between the two sides of the frame, and is located between the two first flexible sealing covers. The middle part of the second flexible sealing cover is disconnected, and the two sides of the disconnected part are respectively connected to the front end face and the rear end face of the sliding seat.

[0015] The beneficial effects of the utility model are:

[0016] The utility model arranges the rack and the guide rail in a staggered manner in the height direction, so that the rack and the gear that drive the grinding head assembly to move in the width direction of the frame are placed above the guide rail, and a first flexible sealing cover is arranged above the guide rail to prevent dust generated when the stone is polished from falling on the guide rail, thereby ensuring that the slide block can slide smoothly along the guide rail, preventing dust generated by polishing and water mist from affecting the reciprocating motion of the grinding head assembly, and improving the stability of the polishing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 for Figure 1 Magnified view at A in the middle;

[0019] Figure 3 for Figure 1 B-direction view;

[0020] Figure 4 for Figure 3 CC section view;

[0021] Figure 5 for Figure 4 Magnified view at D in the middle;

[0022] Figure 6 for Figure 1 Schematic diagram of the structure of the middle grinding head assembly. DETAILED DESCRIPTION

[0023] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0024] like Figure 1 , 2, 3, 4, 5, and 6 show a stone polishing machine of the utility model, which includes a frame 10, a belt conveyor mechanism 20, and a grinding head assembly 30. The frame 10 is mainly composed of longitudinal beams located on both sides thereof and a plurality of cross beams connecting the longitudinal beams. The belt conveyor mechanism 20 is installed on the frame 10 and extends along the length direction of the frame 10. The belt conveyor mechanism 20 is used to convey stones along the length direction of the frame 10, and when grinding stones, the belt on the belt conveyor mechanism 20 is used to support the stones. Two belts are arranged on the frame 10, which are arranged above the belt conveyor mechanism 20 and extend along the width direction of the frame 10. The extended mounting beam 40, the grinding head assembly 30 is located above the belt conveyor mechanism 20 and between the two mounting beams 40, the two ends of the mounting beam 40 are respectively fixed to the two sides in the width direction of the frame 10, a horizontal support plate 41 is provided at the bottom of the mounting beam 40, and a rack 45 extending in the width direction of the frame 20 is also fixed on the mounting beam 40, the rack 45 is placed above the horizontal support plate 41 and staggered a certain distance from the horizontal support plate 41 in the height direction, and a guide rail 42 extending in the width direction of the frame 10 is fixedly connected to the upper surface of the horizontal support plate 41, and the guide rail 42 is placed below the rack 45. The grinding head assembly 30 includes a sliding seat 301 and a grinding head 35, the grinding head 35 protrudes from the bottom surface of the sliding seat 301, and a driving mechanism is arranged on the sliding seat 301 to drive the grinding head 35 to rotate and lift, and the driving mechanism is the same as the prior art and is not described in detail here; sliders 31 are respectively arranged on both sides of the bottom surface of the sliding seat 301, and the sliders on both sides of the sliding seat 301 are respectively slidably mounted on the two guide rails 42; in addition, a transmission rod 33 is also arranged on the sliding seat 301, and the transmission rod 33 is consistent with the length direction of the frame 10, and the two ends of the transmission rod 33 respectively pass through the two sides of the sliding seat 301 and protrude from the two side surfaces of the sliding seat 301, and a gear 32 is connected to the part of the transmission rod 33 protruding from the two sides of the sliding seat 301, and a motor for driving the transmission rod 33 to rotate is arranged on the sliding seat 301, and the motor is arranged inside the motor cover 34 fixed on the sliding seat 301, and the two gears 32 are respectively placed below the two racks 45, and the gears 32 are meshed with the racks 45. The motor can be a permanent magnet motor, which directly drives the transmission rod 33 and then drives the gear 32 to rotate, so there is no need to configure a reducer on the grinding head assembly 30, which reduces the overall weight of the grinding head assembly 30 and enables the grinding head assembly 30 to move more flexibly along the width direction of the frame 10. A first flexible sealing cover 44 is provided on each mounting crossbeam 40, which is covered above the horizontal support plate 41. The first flexible sealing cover 44 and the horizontal support plate 41 form a chamber to surround the guide rail 42 in the chamber; the two ends of the first flexible sealing cover 44 are respectively connected to the two ends of the mounting crossbeam 40, the middle of which is disconnected, and the two sides of the disconnected part are respectively connected to the front end face and the rear end face of the sliding seat 301.

[0025] In the utility model, since the rack and the guide rail are staggered in the height direction, the rack and the gear that drive the grinding head assembly to move in the width direction of the frame are placed above the guide rail, and a first flexible sealing cover is provided above the guide rail to prevent dust and water mist generated during stone grinding from falling on the guide rail, thereby ensuring that the slider can slide smoothly along the guide rail, preventing dust generated by grinding from affecting the reciprocating motion of the grinding head assembly, and improving the stability of the polishing machine.

[0026] It should be noted that the utility model can be a plurality of grinding head assemblies 30 arranged along the length direction of the frame 10, and correspondingly, a plurality of mounting crossbeams 40 are arranged in the length direction of the frame 10, and a grinding head assembly 30 is arranged between every two adjacent mounting crossbeams 40, so that the plurality of grinding head assemblies 30 can grind the stone on the belt conveyor mechanism 20 in sequence. Each grinding head assembly 30 is equipped with two grinding heads, and the movement of each grinding head assembly 30 along the width direction of the frame 10 can be controlled by a program, for example, two adjacent grinding head assemblies 30 can be staggered and move along the width direction of the frame 10, or can be synchronously moved along the width direction of the frame 10.

[0027] In a preferred embodiment, the first flexible sealing cover 44 is configured to have an inverted U-shaped cross-section, with the two sides of its bottom respectively placed above the upper surface of the horizontal support plate 41, and a gap is formed between the upper surface of the horizontal support plate 41, and an outer baffle plate 411 is fixed on both sides of the horizontal support plate 41, and the two outer baffle plates 411 respectively block the outside of the two gaps. When the grinding head assembly 30 swings in the width direction of the frame, it squeezes or stretches the first flexible sealing cover 44. The above-mentioned gap can avoid interference between the first flexible sealing cover 44 and the mounting beam 40. The outer baffle plate 411 is used to block the gap to prevent dust generated by grinding from entering the chamber through the gap. Furthermore, two inner baffles 43 are fixed on the horizontal support plate 41 and are located on both sides of the guide rail 42. The two inner baffles 43 respectively block the inner sides of the two gaps, and the height of the inner baffles 43 is greater than the height of the guide rail 42. The inner baffles 43 and the outer baffles 411 are used to construct a maze structure on the inner and outer sides of the first flexible sealing cover 44 to further prevent dust generated by grinding from falling on the guide rail 42.

[0028] The utility model places the gear 32 below the rack 45, and bears the gravity from the grinding head assembly 30 through the guide rail 42. No mutual pressure is generated between the gear 32 and the rack 45. In order to enable the gear 32 and the rack 45 to mesh well, the utility model provides a waist-shaped hole extending in the height direction on the rack 45, and the waist-shaped hole extends from one side of the rack 45 to the other side. The rack 45 is fixed to the mounting beam 40 by a locking bolt that crosses the waist-shaped hole and the mounting beam 40. In this way, during installation, the upper and lower heights of the rack 45 can be adjusted to a suitable position so that it can mesh well with the gear 32, and then the rack 45 is fixed to the mounting beam 40 by using the locking bolt. During use, if the gap between the gear 32 and the rack 45 is too large, the height of the rack 45 can also be adjusted to improve the transmission efficiency. In addition, a lubricating oil groove 46 is fixed on the mounting cross beam 40 and is located below the rack 45 and is arranged opposite to the rack 45. At least a portion of the bottom of the gear 32 is embedded in the lubricating oil groove 46. The gear 32 can contact the lubricating oil in the lubricating oil groove 46. After the gear 32 rotates, the lubricating oil can lubricate the fitting clearance between the gear 32 and the rack 45.

[0029] A horizontal baffle 47 is also provided on the mounting crossbeam 40 to shield the rack 45. The horizontal baffle 47 is used to shield the rack 45 to prevent dust from falling into the matching gap between the rack 45 and the gear 32, further ensuring that the grinding head assembly 30 can slide smoothly.

[0030] In addition, a second flexible sealing cover 50 is provided between the two side edges of the frame 10. The second flexible sealing cover 50 is located between the two first flexible sealing covers 44. The middle part of the second flexible sealing cover 50 is disconnected, and the two sides of the disconnected part are respectively connected to the front end face and the rear end face of the sliding seat 301. The second flexible sealing cover 50 is utilized to shield the grinding area above the grinding head 35, that is, the part between the second sealing cover 50 and the belt conveyor mechanism 20 forms a grinding area, thereby preventing dust generated by grinding from floating up, and preventing dust from falling on the guide rail 42 and the rack 45.

[0031] The above description is only a preferred embodiment of the utility model, which is a further detailed description of the utility model in combination with specific preferred implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A stone polishing machine, characterized in that: It includes a frame, a belt conveying mechanism installed on the frame and extending along the length direction of the frame, and a grinding head assembly; Two mounting crossbeams are fixed on the frame and are arranged above the belt conveyor mechanism and extend in the width direction of the frame. The mounting crossbeams are provided with a horizontal support plate at the bottom thereof, and a rack located above the horizontal support plate and staggered with the horizontal support plate by a certain distance in the height direction. The horizontal support plate is provided with a guide rail extending in the width direction of the frame. The grinding head assembly is placed between the two mounting cross beams, and includes a sliding seat and a grinding head protruding from the bottom surface of the sliding seat. Slide blocks installed on two guide rails are respectively arranged on both sides of the bottom surface of the sliding seat. A transmission rod and a motor for driving the transmission rod to rotate are arranged on the sliding seat. The two ends of the transmission rod protrude from the two sides of the sliding seat respectively, and the two ends of the transmission rod are respectively connected to a gear. The two gears are respectively placed under the two racks and mesh with the two racks respectively. Each mounting crossbeam is provided with a first flexible sealing cover which is arranged above the horizontal support plate. The first flexible sealing cover and the horizontal support plate form a chamber surrounding the guide rail. The two ends of the first flexible sealing cover are respectively connected to the two ends of the mounting crossbeam, the middle part is disconnected, and the two sides of the disconnected part are respectively connected to the front end face and the rear end face of the sliding seat.

2. The stone polishing machine according to claim 1, characterized in that: The cross-section of the first flexible sealing cover is an inverted U-shape, and the two sides of its bottom are respectively placed above the upper surface of the horizontal support plate and form a gap with the upper surface of the horizontal support plate. An outer baffle is fixed on both sides of the horizontal support plate, and the two outer baffles respectively block the outside of the two gaps.

3. The stone polishing machine according to claim 2, characterized in that: Two inner baffles are fixed on the horizontal support plate and are respectively arranged on both sides of the guide rail. The two inner baffles are respectively shielded at the inner sides of the two gaps, and the height of the inner baffles is greater than the height of the guide rail.

4. The stone polishing machine according to claim 1, characterized in that: The rack is provided with a waist-shaped hole extending in the height direction, the waist-shaped hole extending from one side of the rack to the other side, and the rack is fixed on the mounting crossbeam by a locking bolt that crosses the waist-shaped hole and the mounting crossbeam.

5. The stone polishing machine according to claim 1, characterized in that: A lubricating oil groove is fixedly connected to the mounting crossbeam and is located below the rack and directly opposite to the rack. At least a portion of the bottom of the gear is embedded in the lubricating oil groove.

6. The stone polishing machine according to claim 1, characterized in that: A horizontal baffle shielding the top of the rack is arranged on the installation beam.

7. The stone polishing machine according to claim 1, characterized in that: A second flexible sealing cover is arranged between the two sides of the frame, and is located between the two first flexible sealing covers. The middle part of the second flexible sealing cover is disconnected, and the two sides of the disconnected part are respectively connected to the front end face and the rear end face of the sliding seat.

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