Stone edge machining equipment

Abstract

The invention relates to the technical field of stone machining, provides stone edge machining equipment, and solves the problems of stone damage, position offset and low machining efficiency caused by design defects of existing stone edge machining equipment. The reciprocating rail comprises two conveying rails which are arranged at an interval; the lower pressing roller set is arranged on one side of each conveying rail; the driving part is used for enabling the lower pressing roller set to drive the stone to move along the reciprocating rail; the polishing sheet group is arranged on the other side of each conveying rail; the rail changing component is arranged at one end of the reciprocating rail; the reciprocating rail structure composed of the double conveying rails is adopted and matched with the rail changing component at one end, double-rail circulating type continuous machining of the stone is achieved, the problems that traditional equipment can only machine a single edge at a time, the machining process is interrupted, and efficiency is low are solved, the feeding and discharging auxiliary time is greatly shortened, continuous machining of multiple edges of the stone can be completed at a time, and the machining efficiency is improved. And the processing efficiency is obviously improved.

Description

Technical Field

[0001] This invention relates to the field of stone processing technology, and specifically to a stone edge processing device. Background Technology

[0002] With the rapid development of the building decoration industry, natural stone and artificial stone slabs are widely used in indoor and outdoor flooring, walls, countertops, and other decorative applications. Polishing and edge grinding of stone are core processes in finished stone processing, and their processing precision and surface smoothness directly determine the stone's installation compatibility, aesthetic appeal, and safety. As the stone processing industry expands, the market is placing increasingly higher demands on stone edge processing equipment, including its continuous processing capacity, automation level, processing precision, specification compatibility, and operational stability.

[0003] Currently, various automated equipment for stone edge processing has emerged on the market. For example, the Chinese patent announcement number CN223989346U discloses a stone processing edge grinding device. This device uses a fixed frame arranged symmetrically at the top and bottom, a synchronous transmission belt, and a grinding wheel to achieve the clamping, conveying, and synchronous edge grinding of the stone. It eliminates the need for complicated manual fixing and alignment operations, simplifying the processing flow to a certain extent and improving the processing efficiency of a single edge grinding process. However, in actual large-scale production applications, existing technologies and similar stone processing equipment still have the following technical problems: the equipment mostly adopts a single-rail, single-station processing structure, and a single processing flow can only complete the processing of a single edge of the stone; the repositioning and turning of the stone mostly rely on manual operation, and surface scratches and impact damage are easily caused during the stone repositioning process, and the stone position is also prone to deviation. Summary of the Invention

[0004] Therefore, in view of the above problems, the present invention provides a stone edge processing equipment, which solves the problems that existing stone edge processing equipment is prone to stone damage and positional displacement due to design defects, and has low processing efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: A stone edge processing device, comprising: The reciprocating track consists of two spaced-apart conveyor rails for placing the stone. A set of pressure rollers is provided on one side of each of the conveying rails, and the set of pressure rollers includes a number of pressure rollers arranged at intervals. A driving component is used to drive each of the lower pressure rollers to rotate, so that the lower pressure roller group drives the stone to move along the reciprocating track; A polishing disc assembly, located on the other side of each of the aforementioned conveyor rails, comprises several polishing discs spaced apart, used for polishing the edges of the stone. A track-changing component is located at one end of the reciprocating track and is used to switch the stone to different conveying tracks. The track-changing component includes an inclined plate, a steering plate located on one side of the inclined plate, balls distributed on the steering plate, and a pushing cylinder located on one side of the steering plate to push the stone onto the reciprocating track. An adjusting component is used to adjust the interval between the lower pressure roller group and the polishing sheet group. The adjusting component includes an adjusting block disposed at one end of the lower pressure roller group, an adjusting rod passing through the adjusting block, and an adjusting rail disposed at the other end of the lower pressure roller group.

[0006] Furthermore, the driving component includes a driving gear, a transmission gear connected to each of the lower pressure rollers, and a driving chain connecting the driving gear and the transmission gear.

[0007] Furthermore, it also includes a height adjustment component for adjusting the height of the lower pressure roller assembly. The height adjustment component includes an adjustment frame, a sliding block slidably disposed within the adjustment frame, and a lead screw for adjusting the height of the sliding block. One end of the lead screw is connected to the top of the sliding block.

[0008] Furthermore, each of the lower pressure roller groups also includes several spaced-apart correction rollers, the diameter of each correction roller gradually increasing from the end closer to the reciprocating rail to the end farther away from the reciprocating rail.

[0009] Furthermore, the adjustment component also includes a scale on the adjustment rail for indicating the adjustment distance between the lower pressure roller group and the polishing sheet group.

[0010] Furthermore, the inclined plate is provided with a plurality of damping rollers at intervals.

[0011] Furthermore, each of the lower pressure rollers includes a structural ring and a friction ring sleeved outside the structural ring.

[0012] Furthermore, the outer surface of the friction ring is provided with anti-slip texture, which is a series of staggered grooves or protrusions.

[0013] Furthermore, a steering component is provided above the steering plate, the steering component including a downward pressure cylinder and a rotary motor that drives the downward pressure cylinder to rotate.

[0014] Furthermore, the rotary motor drives the downward pressure cylinder to rotate by 90 degrees each time.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention adopts a reciprocating track structure composed of dual conveyor tracks, combined with a track-changing component at one end, to achieve continuous processing of stone in a dual-track cycle. This solves the pain points of traditional equipment that can only process one side at a time, with interrupted processing flow and low efficiency. It significantly reduces the auxiliary time for loading and unloading materials, and can complete the continuous processing of multiple edges of stone in one go, thus significantly improving processing efficiency.

[0016] 2. This invention uses a combination of a lower pressure roller assembly and a drive component to directly apply stable pressure and limit the stone material and provide uniform traction through the rotating lower pressure roller. Compared with traditional conveying structures, this invention avoids slippage and movement caused by water cooling during stone processing, ensuring the smoothness of stone movement and significantly improving the precision and consistency of stone edge polishing.

[0017] 3. The present invention adopts a cooperative structure of inclined plate, ball bearing steering plate and push cylinder in the track changing component. The inclined plate realizes the smooth transition of stone between the conveying rails, greatly reduces the frictional resistance of stone changing and turning, avoids scratches on the stone surface, requires no manual intervention and has a high degree of automation.

[0018] 4. This invention can limit the stopping position of the stone on the turning plate by using a limiting rod, ensuring the position of the stone after changing tracks and turning. It can be used in the processing of stones of different sizes, while avoiding the deviation of processing dimensions caused by stone offset, and improving the consistency of processing of stones in the same batch. Attached Figure Description

[0019] Figure 1 This is a top view of the structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the steering component structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the drive component structure according to an embodiment of the present invention; Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle.

[0020] Explanation of icon numbers: Reciprocating rail 1; First conveyor rail 11; Second conveyor rail 12; Lower pressure roller group 2; Lower pressure roller 21; Structural ring 22; Friction ring 23; Correction roller 24; Drive component 3; drive gear 31; transmission gear 32; Polishing disc group 4; Polishing disc 41; Track changing component 5; tilting plate 51; steering plate 52; ball bearing 53; push cylinder 54; damping roller 55; Adjusting component 6; adjusting block 61; adjusting rod 62; adjusting rail 63; Steering component 7; downward pressure cylinder 71; rotary motor 72. Detailed Implementation

[0021] The following will describe in detail the implementation of the present invention with reference to specific embodiments, so that the process of how the present invention uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] Example: Figures 1 to 4 As shown in this embodiment, a stone edge processing equipment is disclosed, which is mainly used for edge polishing of natural stone and artificial stone slabs. It can realize fully automatic continuous cycle processing of multiple edges of stone, and solve the problems of low processing efficiency, insufficient automation, poor processing accuracy, and easy damage to stone in existing equipment.

[0023] In this embodiment, the equipment includes a horizontally mounted frame, which is a rectangular welded steel structure frame that provides stable installation support for all components. An electrical control box is integrated at one end of the frame to realize the linkage control and parameter adjustment of various electrical components of the equipment. An air source assembly is provided on the frame to provide a stable compressed air source for various pneumatic components. A cooling water supply assembly is also provided to cool the tools and suppress dust during the stone polishing process. The above components are necessary supporting components for the basic operation of the equipment, ensuring the stable operation and automated control of the equipment. All of these are existing public technologies and will not be described in detail here.

[0024] The following are the specific implementation methods for the core components of the equipment: Reciprocating rail 1: It is horizontally fixed along the length of the frame and includes two parallel and spaced conveyor rails, namely the first conveyor rail 11 and the second conveyor rail 12. The two conveyor rails are of the same length and have the same top surface. Both are used to place the stone to be processed. The first conveyor rail 11 and the second conveyor rail 12 both use spaced conveyor rollers.

[0025] Lower pressure roller group 2: Located on one side of each conveyor rail, specifically the right side of the first conveyor rail 11 and the right side of the second conveyor rail 12. Each lower pressure roller group 2 is matched with a single conveyor rail. Each lower pressure roller group 2 includes 6 lower pressure rollers 21 that are equally spaced along the length of the conveyor rail. The axis of the lower pressure rollers 21 is perpendicular to the length of the conveyor rail. The bottom surface of the lower pressure rollers 21 and the top surface of the conveyor rail form a stone conveying channel. In other preferred embodiments, the number and spacing of the lower pressure rollers 21 can be flexibly adjusted according to the length of the conveyor rail and processing requirements.

[0026] Drive component 3: Used to drive each lower pressure roller 21 to rotate, so that the lower pressure roller group 2 drives the stone to move along the reciprocating track 1. In this embodiment, the drive component 3 adopts a chain drive structure, specifically including a variable frequency reduction motor, a drive gear 31 coaxially fixed with the output shaft of the variable frequency reduction motor, a transmission gear 32 coaxially fixed with the end of the roller shaft of each lower pressure roller 21, and a drive chain (not shown in the figure) wrapped around the outside of the drive gear 31 and all the transmission gears 32; each lower pressure roller group 2 is equipped with an independent drive component 3, and the speed of the lower pressure roller 21 can be adjusted by the variable frequency reduction motor, thereby adapting to different stone conveying and polishing process requirements. The chain drive can ensure that all lower pressure rollers 21 rotate synchronously and at the same speed, avoiding stone conveying jams and deviations; in other preferred embodiments, the drive component 3 can also adopt a synchronous belt drive structure to reduce equipment operating noise, or it can adopt a structure in which multiple servo motors independently drive a single lower pressure roller 21 to achieve independent adjustment of the speed of a single roller and adapt to more complex processing requirements.

[0027] Polishing pad group 4: Located on the other side of each conveyor rail, specifically on the left side of the first conveyor rail 11 and the left side of the second conveyor rail 12. Each polishing pad group 4 is configured with a single conveyor rail. Each polishing pad group 4 includes 8 polishing pads 41 evenly spaced along the length of the conveyor rail. Each polishing pad 41 is equipped with an independent polishing drive motor. The output shaft of the polishing drive motor is coaxially fixed with the polishing pad 41 and is used to drive the polishing pad 41 to rotate at high speed to polish the edges of the stone. In other preferred embodiments, the mesh size of each polishing pad 41 increases sequentially along the stone conveying direction, gradually transitioning from coarse grinding to fine grinding, avoiding excessive polishing at one time that could cause the stone to chip or break. In other preferred embodiments, the number, mesh size, and arrangement of the polishing pads 41 can be adjusted according to the polishing process requirements. Chamfering polishing pads can also be added to simultaneously achieve chamfering of the stone edges.

[0028] Track-changing component 5: Located at one end of the reciprocating rail 1, i.e., one end of the frame length direction, it is used to switch the stone onto different conveying rails. In this embodiment, the track-changing component 5 includes an inclined plate 51, a turning plate 52 located on one side of the inclined plate 51, ball bearings 53 evenly distributed on the upper surface of the turning plate 52, and a push cylinder 54 located on one side of the turning plate 52; the high end of the inclined plate 51 is flush with the end of the conveying rail, and the low end is inclined downward towards the turning plate 52, so as to realize the smooth transition of the stone from the conveying rail to the turning plate 52; the turning plate 52 is a horizontally set rectangular plate, and the ball bearings 53 are evenly embedded on its upper surface. The ball bearings 53 are universal bullseye wheels, which greatly reduces the frictional resistance of the stone turning and changing position; the piston rod end of the push cylinder 54 is fixed with a push plate, and the pushing direction is perpendicular to the length direction of the conveying rail, so as to push the turned stone onto another conveying rail; in other preferred embodiments, the push cylinder 54 can be replaced with an electric push rod to adapt to the use scenario without air source.

[0029] Adjustment component 6: Used to adjust the distance between the lower pressure roller group 2 and the polishing disc group 4, adapting to stone processing of different width specifications. In this embodiment, the adjustment component 6 includes an adjustment block 61 at one end of the lower pressure roller group 2, an adjustment rod 62 horizontally passing through the adjustment block 61, and an adjustment rail 63 at the other end of the lower pressure roller group 2; the adjustment rod 62 is a screw structure, threadedly driven with the adjustment block 61, and both ends of the adjustment rod 62 are rotatably mounted on the frame through bearing seats; the adjustment rail 63 is horizontally fixed on the frame, and its length direction is parallel to the axis of the adjustment rod 62, with the end of the lower pressure roller group 2 slidingly engaged with the adjustment rail 63 through a slider; the adjustment rail 63 is provided with a scale, which is set along the length direction of the adjustment rail 63; rotating the adjustment rod 62 can drive the lower pressure roller group 2 to slide horizontally along the adjustment rail 63 through the screw drive, realizing the adjustment of the distance between the lower pressure roller group 2 and the polishing disc group 4; in other preferred embodiments, the adjustment rod 62 can be equipped with a servo adjustment motor to realize electric automatic adjustment, eliminating the need for manual operation and improving the efficiency of machine adjustment.

[0030] In other preferred embodiments, the device further includes a height adjustment component (not shown in the figure) for adjusting the height of the lower pressure roller group 2 to adapt to the processing of stone of different thicknesses. The height adjustment component includes an adjustment frame vertically fixed on the frame, a sliding block slidably disposed within the adjustment frame, and a lead screw for adjusting the height of the sliding block. This mechanical structure is existing publicly available technology and will not be described in detail here. One end of each roller shaft of the lower pressure roller group 2 is mounted on the corresponding sliding block via bearings. The lead screw is vertically inserted through the top of the adjustment frame and threaded into the adjustment frame. The bottom end of the lead screw is rotatably connected to the top of the sliding block. Rotating the lead screw drives the sliding block to slide up and down, thereby adjusting the height of the lower pressure roller group 2. The lead screw transmission has a self-locking function, and the position is stable after adjustment. In other preferred embodiments, the lead screw can be equipped with a lifting motor to achieve electric height adjustment. At the same time, height scales can be set on the adjustment frame to improve adjustment accuracy.

[0031] Each lower pressure roller group 2 also includes several correction rollers 24 arranged alternately and at equal intervals with the lower pressure rollers 21. The diameter of each correction roller 24 gradually increases from the end closer to the reciprocating rail 1 to the end farther away from the reciprocating rail 1, forming a conical roller structure. Automatic correction of the stone conveying process is achieved through a purely mechanical structure, avoiding the problem of inadequate polishing caused by stone conveying deviation. In other preferred embodiments, the taper and number of correction rollers 24 can be adjusted according to the correction requirements.

[0032] A plurality of damping rollers 55 are spaced apart on the inclined plate 51, which can buffer and limit the speed of the stone sliding down the inclined plate 51, so as to avoid the stone from falling too fast and causing impact or deviation. At the same time, the rolling contact will not scratch the surface of the stone. In other preferred embodiments, the damping rollers 55 can adopt a structure with a rubber damping layer to further improve the buffering and speed limiting effect.

[0033] Each lower pressure roller 21 includes a structural ring 22 and a friction ring 23 sleeved on the outside of the structural ring 22; the structural ring 22 is made of carbon steel and is coaxially fixed on the roller shaft of the lower pressure roller 21; the friction ring 23 is made of wear-resistant polyurethane and is sleeved on the outside of the structural ring 22; the outer surface of the friction ring 23 is provided with anti-slip texture. In this embodiment, the anti-slip texture is a staggered groove, which greatly improves the friction coefficient and can also accommodate processing dust and debris; in other preferred embodiments, the anti-slip texture can adopt a staggered convex structure.

[0034] A steering component 7 is provided above the steering plate 52. The steering component 7 includes a pressing cylinder 71 and a rotary motor 72 that drives the pressing cylinder 71 to rotate. The rotary motor 72 is vertically fixed above the steering plate 52 by a mounting bracket. The output shaft is vertically downward and coaxially fixed with the cylinder body of the pressing cylinder 71. The piston rod of the pressing cylinder 71 is vertically downward and a rubber pressure plate is fixed at its end. In this embodiment, the rotary motor 72 is a high-precision servo motor, which drives the pressing cylinder 71 to rotate by 90 degrees each time, which is suitable for the switching requirements of adjacent sides of rectangular stone. In other preferred embodiments, the rotary motor 72 can be a stepper motor with an angle limit switch to reduce equipment costs. The rotation angle can also be adjusted according to processing requirements to adapt to the processing of irregularly shaped stone.

[0035] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A stone edge processing device, characterized in that, include: The reciprocating track consists of two spaced-apart conveyor rails for placing the stone. A set of pressure rollers is provided on one side of each of the conveying rails, and the set of pressure rollers includes a number of pressure rollers arranged at intervals. A driving component is used to drive each of the lower pressure rollers to rotate, so that the lower pressure roller group drives the stone to move along the reciprocating track; A polishing disc assembly, located on the other side of each of the aforementioned conveyor rails, comprises several polishing discs spaced apart, used for polishing the edges of the stone. A track-changing component is located at one end of the reciprocating track and is used to switch the stone to different conveying tracks. The track-changing component includes an inclined plate, a steering plate located on one side of the inclined plate, balls distributed on the steering plate, and a pushing cylinder located on one side of the steering plate to push the stone onto the reciprocating track. An adjusting component is used to adjust the interval between the lower pressure roller group and the polishing sheet group. The adjusting component includes an adjusting block disposed at one end of the lower pressure roller group, an adjusting rod passing through the adjusting block, and an adjusting rail disposed at the other end of the lower pressure roller group.

2. The stone edge processing equipment according to claim 1, characterized in that: The driving component includes a driving gear, a transmission gear connected to each of the lower pressure rollers, and a driving chain connecting the driving gear and the transmission gear.

3. The stone edge processing equipment according to claim 1, characterized in that: It also includes a height adjustment component for adjusting the height of the lower pressure roller assembly. The height adjustment component includes an adjustment frame, a sliding block slidably disposed within the adjustment frame, and a lead screw for adjusting the height of the sliding block. One end of the lead screw is connected to the top of the sliding block.

4. The stone edge processing equipment according to claim 1, characterized in that: Each of the lower pressure roller groups also includes several spaced-apart correction rollers, the diameter of each correction roller gradually increasing from the end closer to the reciprocating rail to the end farther away from the reciprocating rail.

5. The stone edge processing equipment according to claim 1, characterized in that: The adjustment component also includes a scale on the adjustment rail for indicating the adjustment distance between the lower pressure roller group and the polishing sheet group.

6. The stone edge processing equipment according to claim 1, characterized in that: The inclined plate is provided with several damping rollers at intervals.

7. The stone edge processing equipment according to claim 1, characterized in that: Each of the aforementioned pressure rollers includes a structural ring and a friction ring sleeved outside the structural ring.

8. The stone edge processing equipment according to claim 7, characterized in that: The outer surface of the friction ring is provided with anti-slip texture, which is a groove or protrusion distributed in an alternating pattern.

9. A stone edge processing device according to claim 1, characterized in that: A steering component is provided above the steering plate, and the steering component includes a pressure cylinder and a rotary motor that drives the pressure cylinder to rotate.

10. A stone edge processing device according to claim 9, characterized in that: The rotary motor drives the downward pressure cylinder to rotate by 90 degrees each time.

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