Chip cleaner of numerical control machine tool

By designing the guiding components, tightening components, and cleaning device, the problems of chip jamming, loosening, and sticking of the chip conveyor were solved, realizing the stable operation of the CNC machine tool chip conveyor and the collection of waste chips.

CN223719003UActive Publication Date: 2025-12-26NINGXIA HONGYA INNOVATION TECH CO LTD
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Patent Information

Application Number
CN202423029752.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-12-26
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

Existing chip conveyors are prone to problems during use, such as jamming, chips getting stuck in the chain causing it to stop operating, the chain or conveyor belt stretching and loosening, and spiral-shaped iron chips accumulating and getting stuck.

Method used

A chip conveyor for CNC machine tools was designed, including a guiding assembly, a tightening assembly, and a cleaning device. The guiding assembly prevents chips from entering through a limit frame and a protective cover. The tightening assembly uses a telescopic rod to drive the bearing seat to move horizontally and tighten the conveyor belt. The cleaning device cleans the waste chips accumulated at the tail end of the conveyor belt through a cleaning component and a drive assembly.

Benefits of technology

It effectively prevents debris from clogging, conveyor belt loosening and jamming, ensuring normal operation and achieving stable collection of waste and environmental protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a numerical control machine tool chip cleaner which comprises a chip removal elevator and a machine frame, a guide assembly is arranged on one side of the input end of the machine frame, a protective cover for preventing chips from falling into the outside is arranged outside the machine frame, and a collecting device is arranged at the bottom of the output end of the machine frame. A tightening assembly is arranged on one side of the first rotating shaft and comprises a bearing installed outside the first rotating shaft, a bearing seat is arranged outside the bearing, a first telescopic rod is arranged on the machine frame, and the free end of the first telescopic rod is connected with the bearing seat so as to drive the bearing and the first rotating shaft to move horizontally. A cleaning device is arranged on one side of the output end of the machine frame and comprises a sweeping piece used for cleaning the belt, and a driving assembly is arranged between the sweeping piece and the inner wall of the machine frame. The utility model belongs to the technical field of chip removal devices, and particularly provides a chip removal device of a numerical control machine tool, which is used for solving the problems of chip jamming and accumulation clamping stagnation and conveyor belt looseness caused by long-time operation.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the chip cleaner technical field, specifically point to a numerical control machine tool chip cleaner. BACKGROUND

[0002] The chip cleaner is a commonly used machine tool accessory product, mainly used for collecting various metal and non-metal chips generated by machines, and transmitting the chips to a collection vehicle.

[0003] In the prior art, the use of the chip cleaner has the following problems: 1. During the chip removal process, the chips may be stuck or stuck in the chain, causing the chip cleaner to stop running; 2. The chain or conveyor belt of the chip cleaner used for a long time is loose, causing the chip cleaner to run unstably; 3. When conveying iron chips, the long spiral iron chips may be stuck due to accumulation. UTILITY MODEL CONTENT

[0004] In view of the above problems, the utility model provides a numerical control machine tool chip cleaner to solve the problems of chip sticking and accumulation, and conveyor belt loosening caused by long-time operation.

[0005] The technical scheme adopted by the present application is as follows:

[0006] The utility model provides a numerical control machine tool chip cleaner, which comprises a chip removal elevator, the chip removal elevator is externally provided with a rack, the chip removal elevator comprises an input end located at a low position and an output end located at a high position, the inside of the rack is provided with a conveyor belt for conveying the chips from the input end to the output end, the conveyor belt is provided with a first rotating shaft on one side of the rack, the conveyor belt is provided with a second rotating shaft on the other side of the rack, and the rack is provided with a lifting motor connected with the second rotating shaft and driving the conveyor belt to rotate on one side;

[0007] The input end of the rack is provided with a guide assembly, the outside of the rack is provided with a protective cover to prevent the chips from falling outside, and the bottom of the output end of the rack is provided with a collecting device;

[0008] One side of the first rotating shaft is provided with a tightening assembly, the tightening assembly comprises a bearing mounted on the outside of the first rotating shaft, the outside of the bearing is provided with a bearing seat, the rack is provided with a telescopic rod one, and the free end of the telescopic rod one is connected with the bearing seat, so as to drive the bearing and the first rotating shaft to move horizontally, thereby playing a tightening role;

[0009] The surface of the conveyor belt is provided with anti-skid protrusions for limiting the chips during lifting; the output end of the rack is provided with a cleaning device, the cleaning device comprises a cleaning piece for cleaning the conveyor belt, and a driving assembly is arranged between the cleaning piece and the inner wall of the rack.

[0010] As a preferred scheme, the chip removal elevator comprises a receiving section, a lifting section and a discharging section which are sequentially connected, the lifting section is connected between the receiving section and the discharging section in an inclined manner, the receiving section is an input end, and the discharging section is an output end, a first rotating shaft is arranged on one side of the receiving section relative to the conveying belt, a second rotating shaft is arranged on one side of the discharging section relative to the conveying belt, a limiting seat is arranged on the outer side of the frame, a T-shaped sliding rail is arranged on the limiting seat and protrudes downward, a sliding groove is arranged on the outer side of the bearing seat and matched with the T-shaped sliding rail, the limiting seat is symmetrically arranged on the upper and lower sides of the bearing seat, an adjusting groove is arranged on one side of the receiving section relative to the frame, and the bearing and the first rotating shaft are slidably arranged in the adjusting groove under the drive of the first telescopic rod.

[0011] Further, the collecting device comprises a collecting box and a base arranged at the bottom of the collecting box, the collecting box is arranged at the bottom of the output end, a weight sensor for weighing is arranged between the collecting box and the base, a PLC logic controller and a communicator are further arranged on the frame and connected with each other, the PLC logic controller communicates with the upper computer through the communicator, and the weight sensor is connected with the PLC logic controller to remotely monitor the weight of the collected materials and facilitate the on-site maintenance work of the staff.

[0012] Preferably, the guide assembly comprises limiting frames arranged on both sides of the receiving section, a protective belt for preventing the waste chips from entering is arranged between the limiting frames and the surfaces of the conveying belt on both sides, a limiting shell is arranged on one side of the limiting frame close to the protective cover, the limiting shell is arranged in an arched manner above the conveying belt, a push rod is arranged in the limiting shell, a pressing plate is arranged on the free end of the push rod, the pressing plate moves towards the conveying belt, and the pressing plate is used for compressing the expanded waste chips.

[0013] Preferably, a discharge port is arranged at the bottom of the discharging section, a second telescopic rod is arranged on the inner side wall of the frame relative to the discharging section, a support frame is fixedly arranged on the free end of the second telescopic rod, the support frame moves up and down relative to the discharge port under the action of the second telescopic rod, the support frame is arranged in a trapezoidal shape and the inclined surface of the support frame corresponds to the tail end of the conveying belt, the driving assembly comprises a cleaning motor, a screw rod and a sliding piece, the screw rod is rotatably arranged in the support frame, the cleaning motor is arranged on the support frame and the output shaft of the cleaning motor is connected with the screw rod, the sliding piece is arranged in a square box shape, a sliding hole is arranged on the sliding piece and threadedly connected with the screw rod, a side groove is arranged on the side wall of the support frame, the sliding piece is slidably arranged relative to the side groove, the inclined surface of the support frame is recessed inward to form an inner groove, an outer sliding block is arranged on the sliding piece and slidably connected with the inner groove, a cleaning piece is connected with the outer wall of the sliding piece, the cleaning piece and the tail end of the conveying belt form an inclined angle, and the second telescopic rod drives the cleaning piece to move downward to be attached to the conveying belt.

[0014] The beneficial effects achieved by the utility model are as follows:

[0015] 1、Through the setting of the guide assembly, the gap between the conveying belt preventing the waste from entering and the rack is prevented, at the same time, the protective cover preventing the debris from falling outside is arranged outside the conveying belt, the environment is protected, the waste is collected conveniently, the pressing plate which can be pressed down is arranged for compressing the waste with large size or expansion, and the blockage in the conveying space is prevented.

[0016] 2、Through the setting of the tightening assembly, the bearing seat and the first rotating shaft are driven to move horizontally under the action of the telescopic rod one, so that the tightening effect is achieved on the conveying belt, and the normal operation of the conveying belt is prevented from being affected by the loose.

[0017] 3、Through the anti-skid protrusions arranged on the surface of the conveying belt, the funnel-shaped structure is formed on the surface, the limiting effect is achieved on the waste in the lifting process, at the same time, the cleaning member is arranged at the tail end of the conveying belt, the cleaning member moves up and down under the action of the telescopic rod two, moves left and right in the threaded connection process with the screw, the state of the cleaning member can be adjusted according to the cleaning requirement, the normal operation of the unloading work is ensured, and the cleaning effect is achieved in the process of accumulation and jamming. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the chip removal device of the numerical control machine tool provided in the scheme;

[0019] Figure 2 It is a structure composition view of the chip removal device of the numerical control machine tool provided in the scheme;

[0020] Figure 3 It is a local enlarged schematic view of the receiving section provided in the embodiment;

[0021] Figure 4 It is a structure schematic view of the conveying belt and the guide assembly in the embodiment;

[0022] Figure 5 It is a structure schematic view of the driving assembly provided in the scheme;

[0023] Figure 6 It is a principle block diagram provided in the scheme;

[0024] Figure 7 It is Figure 2 the local enlarged schematic view of the A part in the middle.

[0025] The meanings of the reference numerals in the drawings are as follows:

[0026] 1, the chip removal lifting machine, 2, the rack, 3, the conveying belt, 4, the guide assembly, 5, the protective cover, 6, the collecting device, 7, the tightening assembly, 8, the cleaning device;

[0027] 21, input end, 22, output end;

[0028] 31, first rotating shaft, 33, lifting motor, 34, receiving section, 35, lifting section, 36, discharging section;

[0029] 301, first limiting plate, 302, middle plate, 303, second limiting plate;

[0030] 41, limiting frame, 42, protective belt, 43, limiting shell, 44, push rod, 45, pressing plate;

[0031] 61, base, 62, collection box, 63, weight sensor, 64, PLC logic controller, 65, communicator;

[0032] 71, bearing, 72, bearing seat, 73, first telescopic rod, 74, T-shaped slide rail, 75, sliding groove, 76, adjusting groove;

[0033] 81, cleaning member, 82, cleaning motor, 83, screw rod, 84, supporting frame, 85, side groove, 86, outer sliding block, 87, second telescopic rod, 88, sliding member. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0035] Embodiment 1

[0036] Please refer to Figure 1 and Figure 2 It is shown that the embodiment provides a numerical control machine tool chip cleaner, which comprises a chip lifting machine 1, a rack 2 arranged outside the chip lifting machine 1, an input end 21 arranged at a low position and an output end 22 arranged at a high position, a conveying belt 3 arranged inside the rack 2 and used for conveying the waste chips from the input end 21 to the output end 22, a first rotating shaft 31 arranged at one side of the conveying belt 3, a second rotating shaft arranged at the other side of the conveying belt 3, and a lifting motor 33 arranged at one side of the rack 2 and connected with the second rotating shaft and used for driving the conveying belt 3 to rotate.

[0037] In order to solve the problem that the abnormal operation of the conveying belt 3 is caused by the jamming of the chips, a guide assembly 4 is arranged at one side of the input end 21 of the rack 2, and a protective cover 5 is arranged outside the rack 2 and used for preventing the chips from falling outside.

[0038] The chip lifting machine 1 comprises a receiving section 34, a lifting section 35 and a discharging section 36 which are sequentially and communicatively arranged, the lifting section 35 is arranged in an inclined manner between the receiving section 34 and the discharging section 36, the receiving section 34 is the input end 21, and the discharging section 36 is the output end 22.

[0039] refer to Figure 3 and Figure 4 As shown, the protective cover 5 is installed outside the lifting section 35 and the unloading section 36. The guide assembly 4 includes a limiting frame 41 located on both sides of the receiving section 34. A protective belt 42 is provided between the limiting frame 41 and the two side surfaces of the conveyor belt 3 to prevent waste from entering. A limiting shell 43 is provided on the side of the limiting frame 41 near the protective cover 5. The limiting shell 43 is arched above the conveyor belt 3. A push rod 44 is provided at the bottom of the limiting shell 43. A pressure plate 45 is provided at the bottom free end of the push rod 44. The pressure plate 45 moves towards the side near the conveyor belt 3. The pressure plate 45 is used to compress the expanded waste and prevent it from causing blockage in the conveying space.

[0040] When using this structure, the guide component 4 prevents waste from entering the gap between the conveyor belt 3 and the frame 2. At the same time, a protective cover 5 is set on the outside of the conveyor belt 3 to prevent the waste from falling in, which protects the environment and facilitates the collection of waste. A pressure plate 45 that can be pressed down is set to compress larger or expanded waste to prevent it from causing blockage in the conveying space.

[0041] Example 2

[0042] To address the issue of jamming and accumulation on the surface of the conveyor belt 3, which prevents the conveyor belt 3 from operating properly for waste conveying, a cleaning device 8 is provided on one side of the output end 22 of the frame 2. The cleaning device 8 includes a cleaning component 81 for cleaning the conveyor belt 3, and a drive assembly is provided between the cleaning component 81 and the inner wall of the frame 2.

[0043] refer to Figure 2 and Figure 5 As shown, a discharge port is provided at the bottom of the feeding section 36. The feeding section 36 is provided with a telescopic rod 87 on the inner side wall of the frame 2. A support frame 84 is fixed at the free end of the telescopic rod 87. The support frame 84 moves up and down at the discharge port under the action of the telescopic rod 87. The support frame 84 is trapezoidal and is inclined to the tail end of the conveyor belt 3.

[0044] Reference Rabbit 2 and Figure 7 As shown, the drive assembly includes a cleaning motor 82, a screw 83, and a slider 88. The screw 83 is rotatably mounted inside the support frame 84. The cleaning motor 82 is mounted on the support frame 84, and its output shaft is connected to the screw 83. The slider 88 is square-shaped and has a sliding hole that is threadedly connected to the screw 83. The side wall of the support frame 84 has a side groove 85, in which the slider 88 slides. The inclined surface of the support frame 84 is recessed inward to form an inner groove. The slider 88 has an outer slider 86 that slides inward to the inner groove. The cleaning component 81 is connected to the outer wall of the slider 88. The cleaning component 81 forms an inclined angle with the tail end of the conveyor belt 3. The telescopic rod 87 drives the cleaning component 81 to move downward to fit the conveyor belt 3.

[0045] In addition, considering the problem of waste falling during lifting, the surface of the conveying belt 3 is provided with anti-skid protrusions for limiting the waste during lifting. The anti-skid protrusions include a middle plate 302 and limit plates one 301 and two 303 symmetrically arranged on both sides of the middle plate 302. The middle plate 302 is arranged parallel to the first rotating shaft 31. The limit plate one 301 is in the shape of a L inclined to the conveying direction of the conveying belt 3, and a blocking plate is arranged on the side of the limit plate one 301 close to the middle plate 302. The limit plate two 303, the middle plate 302 and the limit plate one 301 form a funnel-shaped structure, and the large-diameter end is arranged towards the conveying direction of the conveying belt 3.

[0046] When the utility model is used, the anti-skid protrusions arranged on the surface of the conveying belt 3 form a funnel-shaped structure, which limits the waste during lifting. A cleaning member 81 is arranged at the tail end of the conveying belt 3. A cleaning motor 82 drives a screw rod 83 to rotate, thereby driving a sliding member 88 to move along the inclined surface of a support frame 84. The cleaning member 81 moves up and down under the action of a second telescopic rod 87 and moves left and right in the process of being threadedly connected with the screw rod 83. The state of the cleaning member 81 can be adjusted according to the cleaning requirements, so as to ensure that the normal unloading operation is not affected. An inclined angle is formed between the cleaning member 81 and the tail end of the conveying belt 3. The second telescopic rod 87 drives the cleaning member 81 to move downward and thereby adhere to the conveying belt 3. The cleaning member 81 can also clean the accumulated waste during the accumulation and jamming process, thereby solving the problem of accumulation causing jamming.

[0047] Embodiment 3

[0048] In order to solve the problem of elongation and loosening of the conveying belt 3 during long-term use, which leads to unstable operation, a tightening assembly 7 is arranged on one side of the first rotating shaft 31. The tightening assembly 7 includes a bearing 71 mounted on the outside of the first rotating shaft 31. A bearing seat 72 is arranged outside the bearing 71. A first telescopic rod 73 is arranged on the rack 2. The free end of the first telescopic rod 73 is connected with the bearing seat 72, thereby driving the bearing 71 and the first rotating shaft 31 to move horizontally, thereby achieving the effect of tightening.

[0049] Reference Figure 1 and Figure 3 As shown in the drawings, the conveying belt 3 is arranged on one side of the receiving section 34 and provided with a first rotating shaft 31. The conveying belt 3 is arranged on one side of the unloading section 36 and provided with a second rotating shaft. The outer side of the rack 2 is provided with a limiting seat. The limiting seat is provided with a downwardly protruding T-shaped sliding rail 74. The outer side of the bearing seat 72 is provided with a sliding groove 75 matched with the T-shaped sliding rail 74. The limiting seat is symmetrically arranged on the upper and lower sides of the bearing seat 72. The rack 2 is provided with a horizontally arranged adjusting groove 76 on one side of the receiving section 34. The bearing 71 and the first rotating shaft 31 are slidably arranged in the adjusting groove 76 under the driving of the first telescopic rod 73.

[0050] In use of the embodiment, the bearing seat 72 and the first rotating shaft 31 are horizontally moved under the action of the telescopic rod one 73, so that the conveying belt 3 is tightened, and the normal operation of the conveying belt 3 is prevented from being affected by looseness.

[0051] Embodiment 4

[0052] The embodiment also provides a structure for realizing intelligent collection monitoring, and expands the function of the device.

[0053] Reference Figure 2 As shown in the figure, the output end 22 of the rack 2 is provided with a collecting device 6, the collecting device 6 comprises a collecting box 62 and a base 61 at the bottom of the collecting box 62, the collecting box 62 is located at the bottom of the output end 22, and a weight sensor 63 for weighing is arranged between the collecting box 62 and the base 61, the rack 2 is further provided with a PLC logic controller 64 and a communicator 65 connected with each other, the PLC logic controller 64 communicates with an upper computer through the communicator 65, the weight sensor 63 is connected with the PLC logic controller 64, the weight of the collection can be remotely monitored, and the on-site maintenance work of the staff is facilitated.

[0054] In the embodiment, the PLC logic controller 64 is further connected with the lifting motor 33, the telescopic rod one 73, the telescopic rod two 87, the push rod 44 and the cleaning motor 82, so that the electric control effect is realized, and the upper computer is used for realizing the monitoring and control work.

[0055] It should be noted that, although the embodiments of the utility model have been shown and described, for ordinary skilled in the art, without departing from the utility model creates the purpose, not creative design with the similar structure mode and embodiment of the technical scheme, all should belong to the protection scope of the utility model.

Claims

1. A chip removal device for a numerically controlled machine tool, comprising a chip removal elevator (1), the chip removal elevator (1) being provided with a housing (2) on the outside, characterized in that: The chip removal elevator (1) includes an input end (21) at a low position and an output end (22) at a high position, and a rack (2) is internally provided with a conveying belt (3) for conveying waste chips from the input end (21) to the output end (22); the input end (21) of the rack (2) is provided with a guide assembly (4), the outside of the rack (2) is provided with a protective cover (5) for preventing debris from falling outside, and the bottom of the output end (22) of the rack (2) is provided with a collecting device (6); the output end (22) of the rack (2) is provided with a cleaning device (8), and the cleaning device (8) comprises a cleaning piece (81) for cleaning the conveying belt (3), and a driving assembly is arranged between the cleaning piece (81) and the inner wall of the rack (2).

2. A chip extractor for a numerically controlled machine tool according to claim 1, characterised in that: The conveying belt (3) is provided with a first rotating shaft (31) on one side of the rack (2), and is provided with a second rotating shaft on the other side of the rack (2), and the rack (2) is provided with a lifting motor (33) connected with the second rotating shaft and driving the conveying belt (3) to rotate; one side of the first rotating shaft (31) is provided with a tightening assembly (7), the tightening assembly (7) comprises a bearing (71) mounted on the outside of the first rotating shaft (31), the outside of the bearing (71) is provided with a bearing seat (72), the rack (2) is provided with a first telescopic rod (73), and the free end of the first telescopic rod (73) is connected with the bearing seat (72), so as to drive the bearing (71) and the first rotating shaft (31) to move horizontally.

3. A chip extractor for a numerically controlled machine tool according to claim 2, characterised in that: The chip removal elevator (1) comprises a receiving section (34), a lifting section (35) and a discharging section (36) which are sequentially connected, the lifting section (35) is connected between the receiving section (34) and the discharging section (36) in an inclined manner, the receiving section (34) is the input end (21), and the discharging section (36) is the output end (22), the conveying belt (3) is provided with a first rotating shaft (31) on one side of the receiving section (34), and is provided with a second rotating shaft on one side of the discharging section (36), the outside of the rack (2) is provided with a limiting seat, the limiting seat is provided with a T-shaped slide rail (74) protruding downward, the outside of the bearing seat (72) is provided with a sliding groove (75) matched with the T-shaped slide rail (74), the limiting seat is symmetrically arranged on the upper and lower sides of the bearing seat (72), the rack (2) is provided with a horizontally arranged adjusting groove (76) on one side of the receiving section (34), and the bearing (71) and the first rotating shaft (31) are slidably arranged in the adjusting groove (76) under the driving of the first telescopic rod (73).

4. A chip extractor for a numerically controlled machine tool according to claim 3, characterised in that: The guide assembly (4) includes limiting racks (41) on both sides of the receiving section (34), the limiting racks (41) are provided with protective belts (42) between the two side surfaces of the conveying belt (3), the limiting racks (41) are provided with limiting shells (43) on the side close to the protective cover (5), the limiting shells (43) are provided in an arched manner above the conveying belt (3), the inner bottom of the limiting shell (43) is provided with a push rod (44), the bottom free end of the push rod (44) is provided with a pressing plate (45), and the pressing plate (45) moves towards the side close to the conveying belt (3).

5. A chip extractor for a numerically controlled machine tool according to claim 4, characterised in that: The bottom of the discharging section (36) is provided with a discharge port, the discharging section (36) is provided with a telescopic rod two (87) relative to the inner side wall of the rack (2), the free end of the telescopic rod two (87) is fixedly provided with a supporting frame (84), the supporting frame (84) moves up and down relative to the discharge port under the drive of the telescopic rod two (87), the supporting frame (84) is provided in a trapezoidal shape and the inclined surface is provided corresponding to the tail end of the conveying belt (3), and the drive assembly comprises a cleaning motor (82), a screw rod (83) and a sliding piece (88). The screw rod (83) is rotatably arranged in the supporting frame (84), the cleaning motor (82) is arranged on the supporting frame (84), and the output shaft of the cleaning motor (82) is connected with the screw rod (83). The sliding piece (88) is provided in a square box shape, a sliding hole is formed in the sliding piece (88) and threadedly connected with the screw rod (83), a side groove (85) is formed in the side wall of the supporting frame (84), the sliding piece (88) is slidably arranged relative to the side groove (85), and the inclined surface of the supporting frame (84) is recessed inwardly to form an inner groove. The sliding piece (88) is provided with an outer sliding block (86) which is slidably connected with the inner groove, the cleaning piece (81) is connected with the outer wall of the sliding piece (88), the cleaning piece (81) forms an inclined angle with the tail end of the conveying belt (3), and the telescopic rod two (87) drives the cleaning piece (81) to move downward to be attached to the conveying belt (3).

6. A chip extractor for a numerically controlled machine tool according to claim 5, characterised in that: The surface of the conveying belt (3) is provided with anti-skid protrusions for limiting, the anti-skid protrusions comprise a middle plate (302), and limiting plates one (301) and two (303) symmetrically arranged on both sides of the middle plate (302), the middle plate (302) is arranged parallel to the first rotating shaft (31), the limiting plate one (301) is arranged in an L-shaped manner inclined to the conveying direction of the conveying belt (3), and the side of the limiting plate one (301) close to the middle plate (302) is provided with a blocking plate, the limiting plate two (303), the middle plate (302) and the limiting plate one (301) form a funnel-shaped structure, and the large-diameter end is arranged towards the conveying direction of the conveying belt (3).

7. A chip extractor for a numerically controlled machine tool according to claim 5, characterised in that: The collecting device (6) comprises a collecting box (62) and a base (61) at the bottom of the collecting box (62), the collecting box (62) is located at the bottom of the output end (22), a weight sensor (63) for weighing is arranged between the collecting box (62) and the base (61), a PLC logic controller (64) and a communicator (65) connected with each other are further arranged on the rack (2), the PLC logic controller (64) communicates with the upper computer through the communicator (65), and the weight sensor (63) is connected with the PLC logic controller (64).

8. A chip extractor for a numerically controlled machine tool according to claim 7, characterised in that: The PLC logic controller (64) is further connected with the lifting motor (33), the telescopic rod one (73), the telescopic rod two (87), the push rod (44) and the cleaning motor (82).