Combined type scraping plate chip removal machine

Abstract

A composite type of scraper chip removal machine, comprising a shell, a driving device, a first guide device, a second guide and an annular conveying device, the driving device is rotationally connected at one end of the conveying device, the first guide device is connected at the other end of the conveying device, the second guide device is located between the driving device and the first guide device and cooperates with the bottom layer of the conveying device; a partition is arranged in the shell, the partition is located in the annular of the conveying device and close to the upper layer; the conveying device comprises a scraper and two parallel annular chains, the two ends of the scraper are fixedly connected with the two annular chains respectively and the working surface extension section of the scraper intersects with the working surface of the partition and / or the bottom of the shell. The partition divides the annular chain and the scraper into two layers which do not affect each other, so that the chip removal machine can remove long chips and also can remove debris, the application range is wide and the universality is stronger.

Description

TECHNICAL FIELD

[0001] The present application relates to machine tool auxiliary equipment, and in particular to a composite scraper chip conveyor. BACKGROUND

[0002] Different machining conditions have different requirements for the form and type of chip conveyor. For example, the conventional scraper chip conveyor is driven by a circulating chain to move a plurality of scrapers. When used in long chip machining conditions, the chips will be wound on the front and rear shafts and the upper and lower scraping plates, causing deformation of the scrapers, chain jamming and other failures. In addition, the conventional scraper chip conveyor is not effective for the discharge of light and easily floating chips. It should be noted that the machining conditions of the general-purpose machine tool at the customer's site are often diverse, and the machine tool cutters, machine tool feed rates and other parameters change with the switching of the workpieces. Therefore, the chip shape also changes, which requires the chip conveyor to have high versatility.

[0003] In the prior art, the chip conveyor is often designed according to the actual machining conditions of the machine tool. Therefore, different machining conditions correspond to various forms of chip conveyors, which is not conducive to product standardization and versatility, and is also not conducive to production organization work, resulting in low efficiency and high cost. Users also have difficulty and uncertainty in selecting products. SUMMARY

[0004] Therefore, it is necessary to provide a composite scraper chip conveyor to solve the problems of non-standardization and poor versatility. The composite scraper chip conveyor divides the ring chain into two independent layers by adding a partition plate between the rotating ring chain, thereby avoiding the winding problem when conveying long chips. The partition plate can also avoid the floating problem when conveying light and loose chips.

[0005] A composite scraper chip conveyor includes a housing, a driving device, a first guide device, a second guide device, and a conveying device. The conveying device includes a first ring chain, a second ring chain, and a scraper. The first ring chain and the second ring chain are arranged in parallel on both sides of the housing. The driving device is rotatably connected to one end of the first ring chain and the second ring chain. The first guide device is connected to the other end of the first ring chain and the second ring chain. The second guide device is located between the driving device and the first guide device and cooperates with the bottom layer of the first ring chain and the second ring chain. The driving device drives the first ring chain and the second ring chain to rotate in the housing along the first guide device and the second guide device. The housing is provided with a partition plate located in the first ring chain and the second ring chain and close to the upper layer chain. One end of the scraper is fixedly connected to the first ring chain, and the other end of the scraper is fixedly connected to the second ring chain. The working surface extension of the scraper intersects with the working surface of the partition plate and / or the bottom of the housing.

[0006] By setting the partition plate in the chip removal machine shell, on the one hand, the annular chain and the scraper are divided into two layers, and do not affect each other, avoiding the winding of the upper and lower layers of the scraper and the annular chain when conveying long chips, affecting the conveying efficiency and service life; on the other hand, the extension section of the scraper intersects with the working surface of the partition plate, forming a chip removal channel, which can transport the chips through the partition plate, solving the problem of floating chips. In this way, the chip removal machine can remove both long chips and small chips, has a wide range of applications, is more versatile, and is more convenient and fast for users to select.

[0007] In one of the embodiments, the second guide device is rotatably connected with the first annular chain and the second annular chain.

[0008] In one of the embodiments, the second guide device includes a first fixed part, a second fixed part, a first rotating part, a second rotating part and a filter screen, the first fixed part and the second fixed part are respectively fixed on the two outer sides of the shell, and coaxial through holes are respectively arranged in the middle of the side surfaces of the first fixed part and the second fixed part; the first rotating part and the second rotating part are respectively embedded in the through holes of the first fixed part and the second fixed part at the end away from each other; the opposite ends of the first rotating part and the second rotating part are fixedly connected with the two sides of the filter screen; the first rotating part and the second rotating part are provided with connecting parts cooperating with the first annular chain and the second annular chain between the filter screen and each fixed part; when the first annular chain and the second annular chain run, they drive the first rotating part, the second rotating part and the filter screen to rotate.

[0009] The rotating second guide assembly not only can be used as a wire pressing device of the annular chain, but also can filter the cutting fluid in the chip removal machine, realizing the dual functions of chip removal and filtration.

[0010] In one of the embodiments, the first fixed part comprises a circular end face cover plate and a fixed ring coaxially arranged with the circular end face cover plate, one side of the fixed ring is provided with a groove coaxial with the fixed ring, the fixed ring is fixedly connected with the circular end face cover plate through fasteners and the groove faces the circular end face cover plate; the end face cover plate is provided with a through hole at the position matching the groove, and the through hole circumscribes the water inlet pipe; the shell is provided with a circular hole matching the fixed ring, the fixed ring passes through the circular hole and is arranged in the shell; one side of the circular end face cover plate close to the fixed ring is fixedly connected with the shell; the first rotating part comprises a first circular ring, a second circular ring and a sprocket, the first circular ring is sleeved on the outer circular surface of one end of the second circular ring and is connected with the second circular ring as a whole in the radial direction through fasteners; the sprocket is sleeved on one end of the first circular ring close to the second circular ring; one end of the first circular ring away from the second circular ring passes through the fixed ring and is embedded in the circular end face cover plate; one end of the second circular ring away from the first circular ring is connected with the filter screen.

[0011] The water inlet pipe on the circular end face cover plate is provided with liquid under certain pressure, and the liquid under pressure forms a water seal to isolate the debris and dirty liquid in the shell from entering the circular ring, thereby playing a sealing role. Moreover, the structure does not need to use a water seal, packing ring or the like, can reduce the hidden danger of wear and aging, improve the service life and prolong the maintenance period.

[0012] In one of the embodiments, the groove of the fixed ring is square in cross section, the first fixed part further comprises a sealing ring, the first circular ring is provided with a protruding circular ring at one end close to the circular end face cover plate, the outer circular surface of the protruding circular ring is flush with one side of the groove close to the first circular ring; the sealing ring is located in the square groove of the fixed ring and the inner ring surface is close to the outer circular surface of the protruding circular ring; one side of the sealing ring is close to the bottom surface of the groove of the fixed ring, and the other side is close to the end face cover plate.

[0013] The arrangement of the protruding circular ring and the sealing ring forms a labyrinth structure for the guide device, further isolates the hidden danger of debris and dirty liquid entering the ring, and the sealing effect is better.

[0014] In one of the embodiments, a sealing ring is arranged between the sleeved part of the first circular ring and the second circular ring, the inner ring of the sealing ring is sleeved on the outer circular surface of the second circular ring, and the outer ring of the sealing ring is embedded on the inner circular surface of the first circular ring.

[0015] The first circular ring and the second circular ring are relatively fixed, and the sealing ring arranged therebetween belongs to static sealing, has small wear and reliable sealing.

[0016] In one embodiment, the second guiding device includes a first set of end cover guide rail assemblies and a second set of end cover guide rail assemblies symmetrically arranged on both sides of the housing; the first set of end cover guide rail assemblies includes a cover plate, a guide rail and a guide rail support, one end of the guide rail support is fixedly connected to the cover plate and the other end is fixedly connected to the guide rail; the cover plate is fixedly connected to the side of the housing, and the guide rail matches the first annular chain and compacts the first annular chain.

[0017] The end cap guide rail assembly has a simple structure and can be used in conventional chip removal applications. Users can choose flexibly according to their actual needs.

[0018] In one embodiment, the scraper is a flat plate, and a connecting seat is provided at the part of the flat plate that connects to the first annular chain and the second annular chain. The connecting seat is fixedly connected to the annular chain by fasteners.

[0019] In one embodiment, the scraper is provided with a plurality of through holes spaced apart along the width direction of the housing for the return of cutting fluid.

[0020] In one embodiment, one end of the scraper is bent along the running direction of the ring chain to form an arc-shaped scraper with an arc-shaped cross-section.

[0021] The composite scraper chip conveyor separates the ring chain and scraper into two independent layers by installing a partition inside the housing. This solves both the problem of long chip entanglement and the problem of chip floating. The intermediate rotary device can be either a drum filter or a combination of end caps and guide rails, depending on the actual working conditions. It can be used in applications with high precision requirements for cutting fluids as well as in applications with general cost constraints, and can be directly replaced without the need for additional auxiliary equipment. This multi-purpose design greatly realizes the standardization and versatility of chip conveyors, which is not only beneficial for production but also extremely convenient for users to select and use. Attached Figure Description

[0022] Figure 1 This is a schematic cross-sectional view of the composite scraper chip conveyor.

[0023] Figure 2 This is a schematic diagram of the installation of the ring chain and scraper;

[0024] Figure 3 A cross-sectional schematic diagram of a rotatable embodiment of the second guide device;

[0025] Figure 4 This is an isometric view of the second guide device, which is an end cap guide rail assembly.

[0026] Figure 5 This is a schematic diagram of a flat scraper;

[0027] Figure 6A schematic diagram of a scraper with return water holes;

[0028] Figure 7 This is a schematic diagram of an arc-shaped scraper;

[0029] In the attached drawings: 10-shell, 11-partition; 20-drive device, 30-first guide device, 40-second guide device, 41-first fixing part, 411-circular end cover plate, 412-fixing ring, 413-sealing ring, 42-second fixing part, 43-first rotating part, 431-first ring, 432-second ring, 433-sprocket, 44-second rotating part, 45-filter screen, 46-end cover, 47-guide rail, 48-guide rail support, 49-bolt, 50-conveying device, 51-first annular chain, 52-second annular chain, 53-scraper, 531-flat plate, 532-perforated scraper, 533-arc-shaped scraper, 60-chip inlet. Detailed Implementation

[0030] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0031] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] In one embodiment, a composite scraper chip conveyor includes a housing, a drive device, a first guide device, a second guide device, and a conveying device. The conveying device includes a first annular chain, a second annular chain, and a scraper. The first and second annular chains are arranged parallel to each other on both sides within the housing. The drive device is rotatably connected to one end of the first and second annular chains. The first guide device is connected to the other end of the first and second annular chains. The second guide device is located between the drive device and the first guide device and cooperates with the bottom chain of the first and second annular chains. The drive device drives the first and second annular chains to rotate along the first and second guide devices within the housing. A partition is provided within the housing, located within the first and second annular chains and close to the upper chain. One end of the scraper is fixedly connected to the first annular chain, and the other end of the scraper is fixedly connected to the second annular chain. The working surface extension of the scraper intersects with the working surface of the partition and / or the bottom of the housing.

[0034] By installing a partition inside the chip conveyor housing, the ring chain and scraper are separated into upper and lower layers, ensuring they do not interfere with each other and preventing entanglement of long chips between the upper and lower scrapers and ring chain, which would affect conveying efficiency and service life. Furthermore, the intersection of the scraper's extension section and the partition's working surface forms a chip removal channel, allowing for the conveying of small chips and solving the problem of floating chips. This chip conveyor can handle both long and small chips, making it more versatile and easier for users to select the right model.

[0035] The following description, in conjunction with specific embodiments, illustrates the composite scraper chip conveyor to further understand its design. Please refer to [link to relevant documentation]. Figures 1-2 As shown, a composite scraper chip conveyor includes a housing 10, which comprises a horizontal section and a lifting section. A drive device 20 is installed at the highest point of the lifting section, a first guide device 30 is installed at the end of the horizontal section away from the lifting section, and a second guide device 40 is installed at the intersection of the lifting section and the horizontal section. A conveying device 50 surrounds the drive device, the first guide device, and the second guide device. Specifically, the drive device includes a drive sprocket and a drive motor. The drive sprocket is mounted on both sides inside the housing via a shaft and is driven to rotate by the drive motor. This structure is a conventional configuration in the art and will not be described in detail in this embodiment. Further, the conveying device includes a first annular chain 51, a second annular chain 52, and a scraper 53. The first and second annular chains are arranged parallel to each other on both sides of the housing, with one end surrounding the drive sprocket and the other end surrounding the first guide device. The second guide device is located between the first and second annular chains and cooperates with the bottom chain. Thus, when the drive motor is started, it can drive the first and second annular chains to rotate along the first and second guide devices within the housing.

[0036] To achieve the chip removal function of the scraper chip conveyor, multiple scrapers are fixedly installed at intervals between the first and second annular chains. Furthermore, a partition 11 is provided inside the housing 10, located within the first and second annular chains, with its working surface parallel to the running trajectory of the upper annular chain. Ideally, the partition is welded to both sides of the housing and close to the upper annular chain. One end of the partition along the running direction of the annular chain is close to the drive sprocket, and the other end is close to the first guide device. It should be noted that the first guide device can be a connecting shaft structure around which the annular chain rolls; it can also be a sprocket assembly that rotates by meshing with the annular chain. More specifically, the extended working surface of the scraper intersects with the working surface of the partition and / or the bottom plate of the housing, thus forming a chip removal channel between the scraper, the partition, and the bottom plate of the housing. When the annular chain is running, the chip removal channel between the scraper and the partition can scrape the chips off the partition, and the chip removal channel between the scraper and the bottom plate of the housing can scrape the chips out of the housing. When long chips need to be removed, the baffle separates the ring chain and scraper into two layers, preventing long chips from tangling with the upper and lower scrapers. In wet machining where lighter chips need to be conveyed, cutting fluid leaks through the baffle to the bottom, while the chips remain on the baffle and are discharged by the scraper, avoiding floating issues. This achieves multi-purpose functionality and greatly improves versatility. Furthermore, the chip conveyor has two chip removal channels, allowing it to rotate clockwise or counterclockwise depending on the actual working conditions without structural changes, making it highly versatile and applicable to a wide range of situations. Conventional chip conveyors, on the other hand, only have one chip removal channel and can only operate in one direction, resulting in significant limitations.

[0037] Ideally, the working surfaces of the scraper and partition should fit snugly against the bottom plate of the housing, and the scraper should be positioned perpendicular to the partition and bottom plate during operation. This maximizes chip removal efficiency and ensures the most thorough chip removal.

[0038] Furthermore, the second guide device is rotatably connected to the first and second annular chains, and better guides and presses the annular chains by engaging with them.

[0039] In one embodiment, the second guiding device can serve as a filtering device to filter the cutting fluid inside the chip conveyor, enabling the chip conveyor to achieve both chip removal and filtration functions without altering its original structure. Specifically, refer to the attached diagram. Figure 2As shown, the second guiding device 40 includes a first fixed part 41, a second fixed part 42, a first rotating part 43, a second rotating part 44, and a filter screen 45. The first and second fixed parts are symmetrically fixed on both sides of the housing, and coaxial through holes are respectively provided in the middle of their sides for the filtered cutting fluid to flow out. The opposite ends of the first and second rotating parts are respectively embedded in the through holes of the first and second fixed parts; the opposite ends of the first and second rotating parts are fixedly connected to both sides of the filter screen by hose clamps to form a whole. The first and second rotating parts have connecting parts between the filter screen and each fixed part that cooperate with the first and second annular chains; when the first and second annular chains run, they drive the first rotating part, the second rotating part, and the filter screen to rotate. The cutting fluid in the housing is filtered by the filter screen and discharged from the housing through the through holes of the fixed parts for use by the machine tool, while the chips are discharged by scrapers.

[0040] In one embodiment, to simplify the filter structure of the second guide device, improve sealing performance, and reduce the use of sealing rings, refer to the attached drawing. Figure 3 As shown, the first fixing part 41 includes a circular end face cover plate 411 and a fixing ring 412 coaxially arranged with the circular end face cover plate. Specifically, one side of the fixing ring 412 has a groove coaxial with the fixing ring. The fixing ring is installed on the circular end face cover plate 411 with bolts, and the groove faces the circular end face cover plate, thus forming an annular cavity between the groove and the circular end face cover plate. A through hole is provided at the position of the circular end face cover plate matching the cavity, and a water inlet pipe is connected to the through hole. Preferably, the water inlet pipe is connected to a filtered clean liquid with a certain pressure.

[0041] Furthermore, the housing has a circular hole for a matching fixing ring at the intersection of the horizontal and lifting sections. The fixing ring passes through the circular hole and is placed inside the housing. Then, the side of the circular end face cover plate near the fixing ring is fixedly connected to the housing by bolts. It should be noted that the first fixing part and the second fixing structure are identical and are symmetrically installed on both sides of the housing. The first rotating part 43 includes a first ring 431, a second ring 432, and a sprocket 433. The first ring is fitted onto the outer circumference of one end of the second ring. Preferably, the first ring is fitted into the middle of the second ring and the first ring and the second ring are connected as a whole in the radial direction by multiple bolts. The sprocket 433 is fitted onto the end of the first ring near the second ring and welded to the first ring. The end of the first ring away from the second ring passes through the fixing ring and is embedded in the rear circular end face cover plate. At this time, the sprocket meshes with the first annular chain. The operation of the annular chain can drive the first ring and the second ring to rotate relative to the fixing ring and the circular end face cover plate.

[0042] It should be noted that the second rotating part can have the same structure and installation method as the first rotating part. After the second rotating part is matched with the second fixed part, the sprocket on it meshes with the second annular chain. The filter screen can be a square filter screen made of polyurethane material, which wraps around the second rings at both ends with hose clamps, or a metal cylindrical filter screen can be placed on the second rings at both ends and tightened with hose clamps. In this way, the filter screen, the first ring, and the second ring form a sealed cavity.

[0043] In one embodiment, to make the structure of the rotating part and the fixing part more compact and the sealing structure more reliable, a raised ring is provided at one end of the first ring near the circular end face cover plate. One side of the raised ring is close to the opening of the groove of the fixing ring, and the other side is flush with the side of the circular end face cover plate near the housing. Preferably, the groove of the fixing ring has a square cross-section, so that the side of the groove near the first ring is flush with the outer circular surface of the raised ring. The fixing part is also provided with a sealing ring 413, which is located in the square groove of the fixing ring and the inner ring surface is close to the outer circular surface of the raised ring. The two sides of the sealing ring are close to the bottom surface of the directional groove and the circular end face cover plate, respectively. In this way, a labyrinth structure is formed between the first ring, the fixing ring, and the sealing ring. This can more effectively prevent debris from the outside of the filter screen from entering the filter screen. It should be noted that the outer ring of the sealing ring is located in the through hole of the end face cover plate, that is, the sealing ring is located on the smallest ring of the annular cavity.

[0044] Please refer to the appendix. Figure 1 As shown, when the chip conveyor is working, the chips and cutting fluid discharged from the machine tool enter the chip inlet 60 of the chip conveyor. The chips are discharged outside the chip conveyor by scrapers for unified treatment. After the cutting fluid is filtered by the filter screen, the filtered cutting fluid flows out of the housing from the circular hole between the first ring, the fixed ring, and the end cap for reuse by the machine tool; a portion of the filtered cutting fluid is also pumped into the annular cavity under high pressure through the water inlet pipe. At this time, the cutting fluid pressure inside the annular cavity is higher than that outside, and the filtered cutting fluid flows out from the inside to the outside from the gap of the raised annular structure near the outer side of the first ring in the annular cavity. The filtered cutting fluid effectively prevents the unfiltered cutting fluid from entering the ring through the aforementioned gap, thereby preventing the unfiltered cutting fluid from entering the filtered cutting fluid area. That is, a dirty liquid cavity is formed between the filter screen and the chip conveyor housing, and a clean liquid cavity is formed inside the filter screen. The structure of the rotating part and the fixed part dynamically separates the filtered cutting fluid from the unfiltered cutting fluid, achieving high-precision filtration of the cutting fluid.

[0045] The entire process requires no easily damaged sealing elements, reliably solving the problems of sealing and filtration failure, improving the filtration accuracy of cutting fluid, extending the service life of the filter structure, and reducing maintenance costs.

[0046] In one embodiment, to further reduce the manufacturing and fitting precision of the first and second rings, and to ensure a tight seal between them, a rubber sealing ring is embedded in the overlapping portion of the first and second rings. Specifically, a groove for the matching sealing ring is formed on the outer surface of the second ring, the sealing ring is fitted into the groove, and the first ring is fitted onto the outer circumference of the sealing ring. Ideally, the height of the sealing ring protruding from the second ring is greater than the gap between the first and second rings. This way, even if the manufacturing and fitting precision of the first and second rings is reduced, the elastic expansion and contraction of the sealing ring will not affect the sealing performance. This static seal is not only simple in structure and easy to use, but also reliable, has a long service life, and requires no frequent maintenance.

[0047] In one embodiment, to ensure versatility, achieve standardized design and manufacturing, and further control costs and simplify the structure, the second guiding device of the composite scraper chip conveyor may include end cover guide rail assemblies symmetrically arranged on both sides of the housing. (See attached figure) Figure 4 As shown, the end cover guide rail assembly includes a cover plate 46, an arc-shaped guide rail 47, and guide rail supports 48. Specifically, there are three guide rail supports, evenly distributed. One end of each support is welded to the cover plate, and the other end is fixedly connected to the guide rail by bolts. The cover plate is fixedly connected to the outside of the housing by evenly distributed bolts 49, and the guide rail extends into the housing, with the bottom arc-shaped surface pressing against the annular chains on both sides. At this point, a conventional scraper chip conveyor is formed.

[0048] When the composite scraper chip conveyor is used in applications requiring high filtration, simply replace the end cover guide rail assemblies on both sides of the housing with cylindrical units equipped with filters. This involves loosening bolt 49 on the conventional scraper chip conveyor, removing the end cover guide rail assemblies, and then replacing them with cylindrical units featuring filters. No structural changes to the chip conveyor are required, making it versatile and significantly improving its adaptability. It should be noted that the guide rail support can also be directly fixed to the guide rail and then connected to the cover plate with bolts. The arc shape of the guide rail matches the running trajectory of the circular chain.

[0049] See attached document Figure 5 As shown, in one embodiment, the scraper is manufactured as a flat scraper 531 by laser cutting, punching, or machining. Connecting seats are welded to both ends of the scraper, and holes are opened on the connecting seats for connection to the accessories of the annular chain. Preferably, the scraper is positioned perpendicular to the partition or the bottom surface of the housing, making the scraper steeper and preventing chip adhesion during chip removal, thus ensuring smoother chip removal.

[0050] See attached document Figure 6As shown, in one embodiment, to prevent the scraper from carrying cutting fluid during chip removal, multiple through holes are spaced apart along the width of the housing to form a perforated scraper 532 for cutting fluid recirculation. Preferably, the through holes are rectangular holes with a large length-to-width ratio. During chip removal, the chips are blocked within the chip removal channel formed by the scraper and the partition or bottom plate, while the cutting fluid leaks into the housing through the holes, preventing it from being carried away during chip removal and reducing waste. Furthermore, the removed chips are drier, facilitating subsequent recycling.

[0051] See attached document Figure 7 As shown, in one embodiment, in order to improve the scraper strength and chip removal capacity of the chip conveyor, the scraper can be configured as an arc-shaped scraper 533 with an arc cross-sectional shape. Specifically, one end of the scraper can be bent along the running direction of the ring chain to form an arc-shaped scraper. Connecting seats can also be provided at the middle positions on both sides of the arc-shaped scraper to be fixedly connected to the ring chain.

[0052] To meet different working conditions or usage requirements, the scrapers of the chip conveyor can be any combination of flat plates, scrapers with return water holes, and arc-shaped scrapers. For example, when the chip conveyor needs to handle chips with a large specific gravity that are not easy to float, the chips and cutting fluid generated by the machine tool enter from the chip inlet 60 and first fall onto the partition plate 11. The ring chain rotates clockwise, and the chips enter below the partition plate through the rear shaft. Flat scrapers 531 or perforated scrapers 532 can be used to discharge the chips from the chip outlet through the chip discharge channel formed by the scraper and the bottom of the housing.

[0053] When the chip conveyor needs to handle lightweight, easily floating chips, the chips and cutting fluid generated during machine tool processing enter through the chip inlet 60 and first fall onto the baffle 11. The annular chain rotates counter-clockwise, and a straight flat plate 531, a scraper 532 with return water holes, or an arc-shaped scraper 533 can be used to scrape the chips out along the upper surface of the baffle through the chip discharge channel formed by the scraper and the baffle, and discharge them from the chip outlet. A small amount of chips will be carried below the baffle by the cutting fluid flow. As the annular chain rotates counter-clockwise, the flat plate 531, the scraper 532 with return water holes, or the arc-shaped scraper 533 can still carry this portion of chips back from below the baffle through the rear shaft and discharge it above the baffle. This reduces the amount of chips between the upper and lower scrapers, improves the working environment, and helps extend the equipment's lifespan, especially suitable for structures with filters.

[0054] It should be noted that when the chip conveyor needs to handle small chip particles, a flat plate (531) is preferred to maximize conveying efficiency and effect. When the chip conveyor needs to handle larger chip sizes, a straight scraper (532) with a return water hole is preferred to effectively reduce cutting fluid carry-out and prevent chip leakage from the return water hole. When the chip conveyor needs to handle a large amount of chips, an arc-shaped scraper (533) is preferred because it has higher strength and is less prone to deformation. Furthermore, when using an arc-shaped scraper, the ring chain needs to rotate counterclockwise, allowing the chips to be discharged through the channel formed by the partition and the scraper. This avoids the problem of large amounts of chips clogging the bottom of the housing through the rear axle. The arc-shaped scraper can be made of sheet metal with multiple bends, increasing strength and allowing for flexible design based on working conditions, making material sourcing and fabrication convenient.

[0055] In this application, the scraper can form a chip removal channel with both the partition and the bottom of the housing, and it can rotate both clockwise and counterclockwise. This allows users to select the appropriate operating direction according to different working conditions simply by operating different buttons, without changing the structure of the chip conveyor, thus offering strong versatility. Furthermore, the second guide device can be configured as either a rotating or fixed structure, corresponding to a chip conveyor with filtering and chip removal functions and a chip conveyor with ordinary chip removal, respectively, without requiring structural changes; only bolts need to be removed. It boasts high interchangeability and powerful functionality, with a high degree of standardization and versatility in design, production, use, and selection; and it offers greater flexibility in selection and a wider range of applications.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A composite scraper chip conveyor, comprising a housing, a drive unit, a first guide unit, a second guide unit, and a conveying unit, characterized in that, The conveying device includes a first annular chain, a second annular chain, and a scraper, with the first annular chain and the second annular chain arranged parallel to each other on both sides inside the housing; The drive device is rotatably connected to one end of the first and second annular chains, the first guide device is connected to the other end of the first and second annular chains, and the second guide device is located between the drive device and the first guide device and cooperates with the bottom chain of the first and second annular chains; the drive device drives the first and second annular chains to rotate along the first and second guide devices within the housing; The housing is provided with a partition, which is located within the first and second annular chains and close to the upper chain. One end of the scraper is fixedly connected to the first annular chain, and the other end of the scraper is fixedly connected to the second annular chain; The extended section of the working surface of the scraper intersects with the working surface of the partition and the bottom of the housing to form a chip removal channel; When the chip conveyor needs to process heavy chips that are not easy to float, the drive device rotates clockwise, and the scraper discharges the chips from the chip discharge channel formed by the scraper and the bottom of the housing through the chip discharge port. When the chip conveyor needs to handle chips that are light in density, easily float, or long, the drive device rotates counterclockwise, and the scraper discharges the chips from the chip discharge channel formed by the scraper and the partition along the upper surface of the partition through the chip discharge port.

2. The composite scraper chip conveyor according to claim 1, characterized in that, The second guide device is rotatably connected to the first annular chain and the second annular chain.

3. The composite scraper chip conveyor according to claim 2, characterized in that, The second guiding device includes a first fixing part, a second fixing part, a first rotating part, a second rotating part, and a filter screen. The first fixing part and the second fixing part are respectively fixed to the two outer sides of the housing, and coaxial through holes are respectively provided in the middle of the sides of the first fixing part and the second fixing part. The opposite ends of the first rotating part and the second rotating part are respectively embedded in the through holes of the first fixing part and the second fixing part. The opposite ends of the first rotating part and the second rotating part are fixedly connected to the two sides of the filter screen. The first rotating part and the second rotating part are provided with connecting parts that cooperate with the first annular chain and the second annular chain between the filter screen and each of the fixing parts. When the first annular chain and the second annular chain are running, they drive the first rotating part, the second rotating part, and the filter screen to rotate.

4. The composite scraper chip conveyor according to claim 3, characterized in that, The first fixing part includes a circular end face cover plate and a fixing ring coaxially arranged with the circular end face cover plate. One side of the fixing ring has a groove coaxial with the fixing ring. The fixing ring is fixedly connected to the circular end face cover plate by fasteners, and the groove faces the circular end face cover plate. The end face cover plate has a through hole at the position matching the groove, and the through hole is connected to a water inlet pipe. The housing has a circular hole matching the fixing ring, and the fixing ring passes through the circular hole and is placed inside the housing. The side of the circular end face cover plate near the fixing ring is fixedly connected to the housing. The first rotating part includes a first ring, a second ring, and a sprocket. The first ring is sleeved on the outer circular surface of one end of the second ring and the first ring and the second ring are connected as a whole in the radial direction by fasteners. The sprocket is sleeved on the end of the first ring near the second ring. The end of the first ring away from the second ring passes through the fixing ring and is embedded in the circular end face cover plate. The end of the second ring furthest from the first ring is connected to the filter screen.

5. The composite scraper chip conveyor according to claim 4, characterized in that, The concave groove of the fixing ring has a square cross-section. The first fixing part also includes a sealing ring. The first ring has a raised ring at one end near the circular end face cover plate. The outer circular surface of the raised ring is flush with the side of the directional groove near the first ring. The sealing ring is located in the square groove of the fixing ring and its inner ring surface is close to the outer circular surface of the raised ring. One side of the sealing ring is close to the bottom surface of the groove of the fixing ring, and the other side is close to the end face cover plate.

6. The composite scraper chip conveyor according to claim 5, characterized in that, A sealing ring is provided between the fitting portions of the first ring and the second ring. The inner ring of the sealing ring is fitted onto the outer circular surface of the second ring, and the outer ring of the sealing ring is embedded into the inner circular surface of the first ring.

7. The composite scraper chip conveyor according to claim 1, characterized in that, The second guiding device includes a first set of end cover guide rail assemblies and a second set of end cover guide rail assemblies symmetrically arranged on both sides of the housing; the first set of end cover guide rail assemblies includes a cover plate, a guide rail and a guide rail support, one end of the guide rail support is fixedly connected to the cover plate and the other end is fixedly connected to the guide rail; the cover plate is fixedly connected to the side of the housing, and the guide rail matches the first annular chain and compacts the first annular chain.

8. The composite scraper chip conveyor according to any one of claims 1-7, characterized in that, The scraper is a flat plate, and a connecting seat is provided at the part of the flat plate that connects to the first annular chain and the second annular chain. The connecting seat is fixedly connected to the annular chain by fasteners.

9. The composite scraper chip conveyor according to any one of claims 1-7, characterized in that, The scraper is provided with several through holes spaced apart along the width direction of the housing for the return of cutting fluid.

10. The composite scraper chip conveyor according to any one of claims 1-7, characterized in that, One end of the scraper is bent along the running direction of the ring chain to form an arc-shaped scraper with an arc cross-section.

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