A scraping machine with a maintenance pedal

Abstract

This utility model belongs to the technical field of chip conveyors, and particularly relates to a scraper chip conveyor with a maintenance pedal. It includes a chip conveyor housing and a scraper. The chip conveyor housing includes an upper housing located above the scraper, and a chip discharge port on the upper housing, also located above the scraper. A movable maintenance pedal is provided between the chip discharge port and the scraper to cover or expose the chip discharge port. The maintenance pedal is connected to a drive device, and a trigger block is provided on the maintenance pedal. A proximity switch corresponding to the trigger block is provided on the chip conveyor housing. This utility model, by providing a movable maintenance pedal at the chip discharge port of the scraper chip conveyor, combined with a hand-cranked drive device and a dual positioning system, realizes the switching between chip conveying and maintenance functions, solving the problem of traditional chip conveyors requiring complete removal for maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of chip conveyor technology, and in particular relates to a scraper chip conveyor with a maintenance pedal. Background Technology

[0002] In the field of machining, especially in wet machining processes (such as CNC machine tools and machining centers), a large amount of metal or non-metal chips are generated. To maintain a clean machining environment and improve production efficiency, scraper chip conveyors are typically used to collect and transport the chips. Scraper chip conveyors use a chain to drive scrapers, which scrape the chips deposited at the bottom of the chip trough and collect them for centralized processing.

[0003] When using a chip conveyor, the chip discharge port needs to be placed under the machine tool to collect the chips from the machine tool. When the machine tool malfunctions and needs to be repaired, it is necessary to enter the machine tool for repair. At this time, because the upper shell of the chip conveyor is relatively fragile, it is very dangerous to step directly into the chip discharge port. Therefore, the chip conveyor can only be moved out from under the machine tool before the machine tool can be repaired. The operation is very inconvenient, time-consuming and labor-intensive. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a scraper chip conveyor with a maintenance pedal.

[0005] To achieve the above objectives, the technical solution adopted is:

[0006] A scraper chip conveyor with a maintenance pedal includes a chip conveyor housing and a scraper. The chip conveyor housing includes an upper housing located above the scraper. The upper housing has a chip discharge port located above the scraper. A movable maintenance pedal is provided between the chip discharge port and the scraper to cover or expose the chip discharge port. The maintenance pedal is connected to a drive device and has a trigger block. The chip conveyor housing has a proximity switch corresponding to the upper and lower parts of the trigger block.

[0007] The beneficial effects of adopting the above technical solution are as follows: by setting a movable maintenance pedal between the chip discharge port and the scraper, the functionality and maintenance convenience of the chip conveyor are unified; the maintenance pedal can cover the chip discharge port to form a safe working platform, and restore the chip conveying function when the chip discharge port is exposed; the drive device, together with the proximity switch triggering system, realizes the control of the pedal position and safety warning, which significantly improves the equipment maintenance efficiency.

[0008] Based on the above technical solution, the present invention can be further improved as follows:

[0009] Preferably, there are two proximity switches and two trigger blocks, with the two trigger blocks located at both ends of the maintenance pedal.

[0010] The advantages of adopting the above-mentioned preferred technical solution are as follows: the trigger blocks and proximity switches at both ends constitute a dual detection system, which can identify the extreme positions of the maintenance pedal (fully covered or fully open). This effectively prevents the pedal from moving beyond its travel range, ensures the safe operation of the equipment, and provides positioning signals for the control system.

[0011] Preferably, the driving device is a hand-cranked device, which includes a main sprocket for winding up the maintenance pedal. The main sprocket is located below the upper housing at one end of the chip discharge port, and a handle is connected to one end of the main sprocket.

[0012] The advantages of adopting the above-mentioned preferred technical solution are as follows: the hand crank mechanism composed of the main sprocket and the handle provides a reliable human-driven solution, the mechanical transmission structure is simple and reliable, the maintenance cost is low, the maintenance pedal movement speed is about 0.05m / s, ensuring smooth operation, no electric drive is required, it is suitable for use in humid processing environments, and the main sprocket is located below the upper housing to prevent dust from entering.

[0013] Preferably, the upper housing is provided with a limiting stop bar, which passes through the upper housing and abuts or separates from the maintenance pedal below to lock or unlock the maintenance pedal. More preferably, the limiting stop bar is a long pin.

[0014] The beneficial effect of adopting the above-mentioned preferred technical solution is that the physical locking of the limit lever ensures that the pedal is fixed in the non-moving state.

[0015] Preferably, a mechanical baffle is provided at the end of the chip discharge port away from the hand crank device. The mechanical baffle is used to limit the maintenance pedal and is connected to the lower part of the upper housing.

[0016] The beneficial effects of adopting the above-mentioned preferred technical solution are as follows: the end mechanical baffle acts as a rigid stop device, providing final physical limit protection, and forming a dual limit system of "soft and hard combination" with the trigger block, ensuring that the pedal is always within the effective travel range.

[0017] Preferably, the hand crank device further includes a driven sprocket located below the upper housing at the other end of the chip discharge port, and chains are connected to both ends of the maintenance pedal, the chains meshing with the main sprocket and the driven sprocket.

[0018] The beneficial effect of adopting the above-mentioned preferred technical solution is that the master and slave sprockets cooperate with the chain drive.

[0019] Preferably, the two trigger blocks are a start trigger block and an end trigger block, with the start trigger block located at the end of the maintenance pedal away from the hand crank device and the end trigger block located at the end of the maintenance pedal closer to the hand crank device.

[0020] The beneficial effect of adopting the above-mentioned preferred technical solution is that it can identify the two working states of the pedal and provide clear position feedback for the control system.

[0021] Preferably, the two ends of the main sprocket and the driven sprocket are connected to the two ends of the upper housing. The main sprocket is mounted on the main connecting rod, and there are two main sprockets located at the two ends of the upper housing, respectively. A connecting rod connects the two main sprockets. The maintenance pedal is wound around the main connecting rod, and the main connecting rod extends out of the upper housing and connects to the handle. Similarly, there are two driven sprockets located at the two ends of the upper housing, respectively. A secondary connecting rod connects the two driven sprockets.

[0022] The beneficial effect of adopting the above-mentioned preferred technical solution is that the main sprocket and the driven sprocket are installed at both ends of the upper housing, providing stable support.

[0023] Preferably, the maintenance pedal and hand crank are configured in three sets.

[0024] The beneficial effect of adopting the above-mentioned preferred technical solution is that the multiple independently set maintenance pedal system allows for segmented independent control.

[0025] Compared with the prior art, the advantages of this utility model are as follows: By setting a movable maintenance pedal at the chip discharge port of the scraper chip conveyor, and in conjunction with a hand-cranked drive device and a dual positioning system (proximity switch + mechanical baffle), the utility model realizes the switching between chip removal and maintenance functions, solves the problem that traditional chip conveyors need to be moved out as a whole during maintenance, and ensures operational safety through an electromechanical interlocking limit mechanism while maintaining the chip removal function unaffected. It is particularly suitable for harsh working conditions such as wet processing, and has outstanding advantages such as compact structure, simple operation, and safety and reliability. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a scraper chip conveyor with a maintenance pedal according to the present invention;

[0027] Figure 2 Internal structural diagram of the maintenance pedal and hand crank mechanism;

[0028] Figure 3 This is a schematic diagram of the sprocket at the other end of the chip discharge port;

[0029] Figure 4 A cross-sectional view of a set of maintenance pedals and hand cranks;

[0030] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0031] Figure 6 Top view of the maintenance pedal;

[0032] 1. Upper housing; 2. Main connecting rod; 3. Secondary connecting rod; 4. Chip discharge port; 5. Maintenance pedal; 9. Main sprocket; 10. Handle; 11. Limit stop lever; 12. Mechanical baffle; 13. Driven sprocket; 14. Chain; 19. Start trigger block; 20. End trigger block; 21. Start proximity switch; 22. End proximity switch. Detailed Implementation

[0033] The present invention will be described below with reference to examples. The examples are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0034] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] refer to Figures 1-6 A scraper chip conveyor with a maintenance pedal includes a chip conveyor housing and a scraper. The chip conveyor housing includes an upper housing 1 located above the scraper. The upper housing 1 has a chip discharge port 4 located above the scraper. A movable maintenance pedal 5 is provided between the chip discharge port 4 and the scraper to cover or expose the chip discharge port 4. The maintenance pedal 5 is connected to a drive device and has a trigger block. The chip conveyor housing has a proximity switch corresponding to the trigger block.

[0037] In an optional embodiment, the proximity switch and the trigger block are each configured as two, with the two trigger blocks respectively located at both ends of the maintenance pedal 5.

[0038] In an optional embodiment, the drive device is a hand crank, which includes a main sprocket 9 for winding up the maintenance pedal 5. The main sprocket 9 is located below the upper housing 1 at one end of the chip discharge port, and a handle 10 is connected to one end of the main sprocket 9.

[0039] In an optional embodiment, the upper housing 1 is provided with a limiting rod 11, which passes through the upper housing 1 and is connected to the lower maintenance pedal 5. By passing through the upper housing 1 and abutting or separating from the lower maintenance pedal 5, the maintenance pedal 5 can be locked or unlocked. More preferably, the limiting rod 11 is a long pin.

[0040] In a preferred embodiment, a mechanical baffle 12 is provided at the end of the chip discharge port 4 away from the hand crank device. The mechanical baffle 12 is used to limit the maintenance pedal 5 and is connected to the lower part of the upper housing 1.

[0041] In this embodiment, the hand crank device further includes a driven sprocket 13, which is located below the upper housing 1 at the other end of the chip discharge port. Both ends of the maintenance pedal 5 are connected to chains 14, which mesh with the main sprocket 9 and the driven sprocket 13.

[0042] In a preferred embodiment, the two trigger blocks are a starting trigger block 19 and an ending trigger block 20. The starting trigger block 19 is located at the end of the maintenance pedal 5 away from the hand crank device, and the ending trigger block 20 is located at the end of the maintenance pedal 5 close to the hand crank device. The starting trigger block 19 is a starting proximity switch 21, and the ending trigger block 20 is an ending proximity switch 22.

[0043] In this embodiment, the two ends of the main sprocket 9 and the driven sprocket 13 are connected to the two ends of the upper housing 1. Specifically, there are two main sprockets 9, located at the two ends of the upper housing 1 respectively. A main connecting rod 2 is connected between the two main sprockets 9. The maintenance pedal 5 is wound around the main connecting rod 2. The main connecting rod 2 passes through the upper housing 1 and is connected to the handle 10. Similarly, there are two driven sprockets 13, located at the two ends of the upper housing 1 respectively. A secondary connecting rod 3 is connected between the two driven sprockets 13.

[0044] In this embodiment, specifically, the maintenance pedal 5 and the hand crank device are set into three sets.

[0045] In use, when the chip discharge port 4 is fully open, the machine tool chips fall normally into the chip removal channel. The limit stop lever 11 is in the unscrewed position, blocking the maintenance pedal 5 and locking it. The starting trigger block 19 is slightly offset from the starting proximity switch 21. When the machine tool needs maintenance, the machine is turned off, chip discharge is stopped, and the operator rotates the limit stop lever 11 upwards to the unlocked position. The limit stop lever 11 disengages from the maintenance pedal 5, releasing the mechanical lock. The handle 10 is turned clockwise (speed controlled at approximately 0.05 m / s). The main sprocket 9 drives the maintenance pedal 5 horizontally via the chain 14, with the sprocket 13 rotating synchronously to maintain the tension balance of the chain 14. The maintenance pedal 5 smoothly slides towards the chip discharge port 4 area. The starting trigger block 19 approaches the starting proximity switch 21, triggering an audible and visual alarm signal to indicate that the maintenance pedal 5 is starting. Continue turning the handle 10 clockwise until the maintenance pedal 5 completely stops when it contacts the mechanical baffle 12. Simultaneously, the ending trigger block 20 approaches the ending proximity switch 22, triggering... An audible and visual alarm signal is emitted, indicating that the maintenance pedal 5 completely covers the chip discharge port 4. Once the other end of the chip discharge port 4 is reached, the limit stop lever 11 is rotated to the locked position, forming a complete maintenance platform covering the chip discharge port 4. Maintenance personnel can then safely work on the maintenance pedal 5. After the work is completed, the limit stop lever 11 is rotated up to release the lock, and the handle 10 is turned counterclockwise to retract the maintenance pedal 5. The starting point trigger block 19 triggers the starting point proximity switch 21, issuing a positioning prompt. The maintenance pedal 5 is then fully reset to the storage position. The limit stop lever 11 is then rotated down to complete the fixation, and the chip conveyor resumes full-function operation.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flighted chipper with a service step, characterized in that The device includes a chip conveyor housing and a scraper. The chip conveyor housing includes an upper housing located above the scraper. The upper housing has a chip discharge port located above the scraper. A movable maintenance pedal is provided between the chip discharge port and the scraper to cover or expose the chip discharge port. The maintenance pedal is connected to a drive device and has a trigger block. The chip conveyor housing has a proximity switch corresponding to the trigger block.

2. The scraper chip conveyor with maintenance pedal according to claim 1, characterized in that, The proximity switch and the trigger block are each configured in pairs, with the two trigger blocks located at both ends of the maintenance pedal.

3. The scraper chip conveyor with maintenance pedal according to claim 1, characterized in that, The drive device is a hand-cranked device, which includes a main sprocket for winding up the maintenance pedal. The main sprocket is located below the upper housing at one end of the chip discharge port, and a handle is connected to one end of the main sprocket.

4. The scraper chip conveyor with maintenance pedal according to claim 1, characterized in that, The upper housing is provided with a limiting stop bar, which passes through the upper housing and abuts or separates from the maintenance pedal below to lock or unlock the maintenance pedal.

5. The scraper chip conveyor with maintenance pedal according to claim 1, characterized in that, A mechanical baffle is provided at the end of the chip discharge port away from the hand crank device. The mechanical baffle is used to limit the position of the maintenance pedal and is connected to the lower part of the upper housing.

6. The scraper chip conveyor with maintenance pedal according to claim 2, characterized in that, The two trigger blocks are a start trigger block and an end trigger block, respectively. The start trigger block is located at the end of the maintenance pedal away from the hand crank device, and the end trigger block is located at the end of the maintenance pedal closer to the hand crank device.

7. The scraper chip conveyor with maintenance pedal according to claim 3, characterized in that, The hand-cranked device also includes a driven sprocket, which is located below the upper housing at the other end of the chip discharge port. Chains are connected to both ends of the maintenance pedal, and the chains mesh with the main sprocket and the driven sprocket.

8. The scraper chip conveyor with maintenance pedal according to claim 7, characterized in that, The two ends of the main sprocket and the driven sprocket are connected to the two ends of the upper housing.

9. The scraper chip conveyor with maintenance pedal according to claim 8, characterized in that, The main sprocket is mounted on the main connecting rod, which extends through the upper housing and connects to the handle.

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