An automatic feeding device for pointed grounding nails and an automatic chamfering machine

Abstract

This application provides an automatic feeding device for pointed grounding nails and an automatic chamfering machine including the automatic feeding device. The automatic feeding device includes a vibratory feeder, a feeding mechanism, and a loading mechanism. The vibratory feeder includes a discharge end. The feeding mechanism is provided with an inlet and a outlet. The loading mechanism is provided with a discharge outlet. The inlet and the discharge end are connected by a flexible hose to form a feeding channel. The outlet and the discharge outlet are connected by a flexible hose to form a discharge channel. The feeding mechanism includes a chute and a discharge slide plate. The discharge slide plate slides into the chute and is provided with a receiving groove. The discharge slide plate can be moved to a first position or a second position along the length of the chute by a discharge translation cylinder. The loading mechanism includes a steering device and a pushing device. The steering device includes a drive motor and a rotating disk driven by the motor. The rotating disk is provided with a loading channel radially through its center point. The rotating disk is driven by the drive motor to rotate, and the loading channel can be switched to the first state or the second state.

Description

Technical Field

[0001] This application relates to the technical field of lathe machining, and in particular to an automatic feeding device for pointed grounding nails and an automatic chamfering machine. Background Technology

[0002] As a crucial connector in electrical grounding systems, the machining accuracy of grounding studs directly impacts the reliability and safety of grounding. Currently, grounding studs are typically manufactured by cold heading followed by subsequent precision machining on CNC lathes, such as chamfering and deburring. In traditional methods, cold-headed grounding studs are usually manually loaded into the chuck of a CNC lathe, which then performs machining along a pre-defined path.

[0003] However, manual feeding suffers from problems such as low efficiency, high labor intensity, and susceptibility to errors, making it difficult to meet the requirements of modern production for automation and high efficiency. Utility Model Content

[0004] In view of the above practical problems and the shortcomings of existing technologies, the main technical problem to be solved by this utility model is to provide an automatic feeding device and an automatic chamfering machine for pointed grounding nails. By equipping a CNC lathe with an automatic loading and unloading system, the equipment is transformed into a precision automatic machining lathe for automatic loading and unloading of rivets, realizing intelligent control and automated processing of rivet processing, and greatly reducing the labor intensity of workers.

[0005] To solve the above-mentioned technical problems, this application provides an automatic feeding device for pointed grounding nails, which adopts the following technical solution:

[0006] An automatic feeding device for pointed grounding nails includes a vibratory feeder, a feeding mechanism, and a loading mechanism. The vibratory feeder includes a discharge end, the feeding mechanism is provided with an inlet and an outlet, and the loading mechanism is provided with a discharge outlet.

[0007] The inlet and outlet are connected by a hose to form a feeding channel, and the outlet and discharge port are connected by a hose to form a discharge channel; the feeding mechanism is located below the vibrating plate along the height direction, and the loading mechanism is located below the feeding mechanism.

[0008] The feeding mechanism includes a chute and a discharge slide plate. The discharge slide plate is slidably connected to the chute and is provided with a receiving groove. The discharge slide plate can be moved to a first position or a second position along the length of the chute by a discharge translation cylinder.

[0009] When the discharge slide plate is in the first position, the receiving groove connects to the inlet; when the discharge slide plate is in the second position, the receiving groove connects to the discharge outlet.

[0010] The feeding mechanism includes a steering device and a pushing device. The steering device includes a drive motor and a rotating disk driven by the motor. The rotating disk has a feeding channel arranged radially through the center point. The rotating disk can be rotated by the drive motor, and the feeding channel can be switched to a first state or a second state.

[0011] When the feeding channel is in the first state, the upper passage of the feeding channel is connected to the unloading port. When the feeding channel is in the second state, the feeding channel is connected to the pushing device.

[0012] In a preferred embodiment, the discharge slide plate is provided with a receiving groove, and the bottom plate of the slide plate is provided with a discharge groove. Both the receiving groove and the discharge groove are through groove structures. The position of the discharge groove corresponds to the position of the discharge port, and the receiving groove can receive one grounding nail at a time.

[0013] In a preferred embodiment, when the discharge slide plate is in the first position, the receiving groove and the discharge groove are misaligned, and the bottom of the receiving groove is closed by the bottom plate of the slide to form a bearing surface; when the discharge slide plate is in the second position, the receiving groove and the discharge groove are vertically connected.

[0014] In a preferred embodiment, a material receiving and storage device is added above the chute, and the material receiving and storage device is provided with a vertically penetrating storage channel.

[0015] The upper end of the storage channel is connected to the discharge end of the vibrating plate to form the inlet; when the discharge slide plate is in the first position, the lower end of the storage channel is coaxially aligned with the receiving trough.

[0016] In a preferred embodiment, the feeding channel is arranged vertically in the first state and horizontally in the second state;

[0017] A CNC lathe chuck is provided on the left side of the steering device, the pusher is provided on the right side of the steering device, and the rotation direction of the rotating disk is set to clockwise.

[0018] In a preferred embodiment, the pushing device includes a pushing cylinder and a push rod fixed to the output end of the pushing cylinder;

[0019] The pusher cylinder drives the pusher rod to extend into the feeding channel, and the pushing stroke length of the pusher rod is greater than the length of the feeding channel.

[0020] In a preferred embodiment, a slot is provided at the end of the push rod away from the pusher cylinder.

[0021] In a preferred embodiment, a fixed receiving plate is coaxially sleeved on the outer periphery of the rotating disk. The fixed receiving plate is fixed to the CNC lathe. The inner ring of the fixed receiving plate is clearance-fitted with the outer circle of the rotating disk so that the rotating disk can rotate relative to the fixed receiving plate.

[0022] The fixed receiving tray is provided with a receiving channel along the vertical direction. The upper end of the receiving channel forms a discharge port. When the feeding channel is in the first state, the feeding channel is connected to the receiving channel.

[0023] To solve the above-mentioned technical problems, this application provides an automatic chamfering machine, which adopts the following technical solution:

[0024] An automatic chamfering machine for pointed grounding nails, comprising the aforementioned automatic feeding device and a CNC lathe;

[0025] The CNC lathe includes an open operating area. The vibratory feeder is fixed to the top of the CNC lathe housing via a vibration damping support frame. The feeding mechanism is fixed to the top surface of the CNC lathe housing via a first mounting base, and the discharge port of the feeding mechanism is suspended within the operating area. The loading mechanism is mounted on the CNC lathe worktable via a second mounting base, and a tool mounting base is provided on the worktable.

[0026] In a preferred embodiment, the worktable is further provided with a discharge channel, which is disposed between the tool mounting seat and the feeding mechanism.

[0027] In summary, this application has the following beneficial effects:

[0028] This utility model achieves automatic feeding and posture conversion of pointed grounding nails through the coordinated operation of a vibratory feeder, a feeding mechanism, and a loading mechanism. Combined with a CNC lathe, it completes automatic chamfering processing, effectively replacing manual operation, significantly improving production efficiency and processing accuracy, and reducing labor intensity. It has the advantages of compact structure, stable operation, and strong adaptability, and is suitable for automated processing production lines for rivet-type parts. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the automatic feeding device in the first embodiment;

[0030] Figure 2 This is a schematic diagram of the feeding mechanism in the first embodiment;

[0031] Figure 3 This is a partial cross-sectional view of the feeding mechanism in the first embodiment;

[0032] Figure 4 This is a schematic diagram of the feeding mechanism in the first embodiment;

[0033] Figure 5 This is a schematic diagram of the steering device in the first embodiment;

[0034] Figure 6 This is a cross-sectional view of the steering device of the first embodiment;

[0035] Figure 7 This is a cross-sectional view of the feeding device in the first embodiment;

[0036] Figure 8 This is a structural diagram of the grounding nail to be processed in the first embodiment;

[0037] Figure 9 This is a three-dimensional schematic diagram of the overall structure of the automatic chamfering machine according to the second embodiment;

[0038] Figure 10 This is a top view of the overall structure of the automatic chamfering machine in the second embodiment.

[0039] Explanation of reference numerals in the attached drawings: 1. Vibratory feeder; 11. Discharge end; 2. Feeding mechanism; 21. Inlet; 22. Outlet; 23. Slide chute; 231. Discharge chute; 24. Discharge slide plate; 241. Receiving chute; 25. Discharge translation cylinder; 26. Receiving and storage device; 261. Storage channel; 3. Loading mechanism; 31. Discharge port; 32. Steering device; 321. Drive motor; 322. Rotating disc; 323. 33. Feeding channel; 331. Pushing device; 332. Pushing cylinder; 333. Push rod; 334. Slot; 35. Fixed receiving tray; 4. Receiving channel; 4. Grounding nail; 41. Tip; 5. CNC lathe; 51. Outer housing; 52. Operating area; 53. Workbench; 54. Tool mounting seat; 55. CNC chuck; 6. Vibration damping support frame; 7. First mounting seat; 8. Second mounting seat; 9. Discharge channel. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0041] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0043] The following is in conjunction with the appendix Figures 1-10 This application will be described in further detail.

[0044] First embodiment, reference Figures 1-8 .

[0045] This embodiment provides an automatic feeding device for a pointed grounding nail 4, including a vibratory feeder 1, a feeding mechanism 2, and a feeding mechanism 3. The vibratory feeder 1 includes a discharge end 11. The feeding mechanism 2 is provided with an inlet 21 and a discharge outlet 22. The feeding mechanism 3 is provided with a discharge outlet 31. The inlet 21 and the discharge end 11 are connected by a flexible hose to form a feeding channel. The discharge outlet 22 and the discharge outlet 31 are connected by a flexible hose to form a discharge channel.

[0046] The vibratory feeder 1 is used for vibratory conveying of the grounding nails 4. The vibratory feeder 1 generates directional micro-amplitude vibrations through electromagnetic excitation, continuously and orderly conveying the cold-forged pre-formed grounding nails 4 upwards along a spiral track. During the ascent, sorting steps, height-limiting plates, and air holes on the track automatically remove overlapping, reversed, or burr-laden defective products, ensuring that only the correctly oriented grounding nails 4 enter the subsequent nail-threading station at a constant rhythm. This achieves fully automated connection of the cold-forging—inspection—nail-feeding process. The vibratory feeder 1 structure used in this embodiment can adopt an existing vibratory feeder 1 structure, which will not be described in detail here.

[0047] The feeding mechanism 2 includes a chute 23 and a discharge slide plate 24. The discharge slide plate 24 is slidably connected to the chute 23. The discharge slide plate 24 is driven by the discharge translation cylinder 25 to move back and forth along the length of the chute 23. A receiving groove 241 is provided on the discharge slide plate 24. The discharge groove 231 is provided on the bottom plate of the chute 23 at the position corresponding to the discharge port 22. Both the receiving groove 241 and the discharge groove 231 are through groove structures. The receiving groove 241 can receive one grounding nail 4 at a time.

[0048] The discharge slide plate 24 can be moved to a first position or a second position under the drive of the discharge translation cylinder 25. The first position is the receiving station and the second position is the unloading station. When the discharge slide plate 24 is in the first position, the receiving groove 241 and the discharge groove 231 are misaligned. At this time, the bottom of the receiving groove 241 is closed by the bottom plate of the slide 23 to form a bearing surface, and the receiving groove 241 is connected to the feed port 21 of the feeding mechanism 2. The grounding nail 4 can fall smoothly into the receiving groove 241 through the hose from the vibrating plate 1. When the discharge slide plate 24 is in the second position, the receiving groove 241 and the discharge groove 231 are vertically connected. At this time, the grounding nail 4 in the receiving groove 241 slides down to the discharge port 22 through the discharge groove 231 under the action of gravity, realizing directional and quantitative material transfer.

[0049] To ensure a continuous supply of grounding nails 4 to the receiving trough 241 during plate changing and refilling periods, and to guarantee a consistent amount of nails falling into the receiving trough 241 each time, a receiving and storage device 26 is added directly above the slide trough 23. The receiving and storage device 26 has a storage channel 261 that runs vertically through the material. Its upper end connects to the discharge end 11 of the vibrating plate 1, forming an inlet 21. When the discharge slide plate 24 is pushed to the first position by the discharge translation cylinder 25, the lower end of the storage channel 261 is aligned coaxially with the receiving trough 241, allowing the grounding nails 4 to fall from the storage channel 261 into the receiving trough 241, completing the receiving process.

[0050] In this embodiment, the feeding mechanism 2 is located below the vibratory feeder 1 along the height direction, and the loading mechanism 3 is located below the feeding mechanism 2. When the grounding nail 4 is dropped from the vibratory feeder 1 to the feeding mechanism 2, the grounding nail 4 is placed vertically with its tip 41 to be processed facing vertically upward. When the grounding nail is processed, the grounding nail 4 is placed horizontally with its tip 41 to be processed facing horizontally.

[0051] Therefore, the feeding mechanism 3 includes a steering device 32 and a pushing device 33. The steering device 32 is used to rotate the received grounding nail 4 from a vertical position at the tip 41 to a horizontal position. The pushing device 33 is used to feed the horizontally placed grounding nail 4 to the CNC chuck 55 of the CNC lathe 5.

[0052] Specifically, the steering device 32 includes a drive motor 321 and a rotating disk 322 driven by the motor. The rotating disk 322 has a feeding channel 323 arranged radially through the center point. The rotating disk 322 is driven to rotate by the drive motor 321, which can switch the feeding channel 323 to a first state or a second state. When the feeding channel 323 is in the first state, the feeding channel 323 is arranged vertically. When the feeding channel 323 is in the second state, the feeding channel 323 is arranged horizontally.

[0053] When the feeding channel 323 is in the first state, the upper passage of the feeding channel 323 is connected to the unloading port 31 to receive the grounding nail 4 falling from the feeding mechanism 2. When the feeding channel 323 is in the second state, the feeding channel 323 changes from vertical to horizontal, and the grounding nail 4 changes from vertical to horizontal placement. At this time, the pushing device 33 can push the grounding nail 4 horizontally to the CNC chuck 55.

[0054] In this embodiment, the CNC chuck 55 is located on the left side of the steering device 32, and the pusher device 33 is located on the right side of the steering device 32. Therefore, the rotation direction of the rotating disk 322 is set to clockwise. When the rotating disk 322 rotates 90° clockwise, the feeding channel 323 switches from the first state to the second state. The grounding nail 4, which was originally upright in the feeding channel 323, is then laid down into a horizontal position. Its tip to be processed points exactly towards the pusher device 33 on the right. After being smoothly fed into the spring chuck of the CNC chuck 55 on the left, the tip to be processed of the grounding nail 4 can protrude 8-10 mm from the end face of the chuck, which is exactly facing the center of the turning tool / chamfering tool. It is in an overhanging state that can be processed immediately, and the tip forming can be completed in one clamping.

[0055] Specifically, the pushing device 33 includes a pushing cylinder 331 and a push rod 332 fixed to the output end of the pushing cylinder 331. The end of the push rod 332 away from the pushing cylinder 331 is provided with a slot 333, which can form a positioning fit with the tip of the grounding nail 4 to be processed, preventing the nail tip from deflecting during pushing. The pushing stroke length of the push rod 332 is greater than the length of the feeding channel 323, so that the grounding nail 4 can be pushed out of the feeding channel 323 and clamped on the CNC chuck 55.

[0056] In this embodiment, a fixed receiving plate 34 is coaxially sleeved on the outer periphery of the rotating disk 322. The fixed receiving plate 34 is locked and kept stationary with the worktable 53 of the CNC lathe 5. Its inner ring is in clearance fit with the outer circle of the rotating disk 322 so that the rotating disk 322 can rotate. The fixed receiving plate 34 is provided with a receiving channel 35 along the vertical direction. When the feeding channel 323 is in the first state, the feeding channel 323 is connected with the receiving channel 35, and the upper end of the receiving channel 35 forms a discharge port 31. The fixed receiving plate 34 forms a stable discharge of the grounding nail 4, and the gap between it and the rotating disk 322 eliminates relative scraping and vibration, ensuring zero nail jamming and zero nail jumping during the material discharge process.

[0057] Alternatively, an air pipe connection device can be provided at the bottom of the receiving channel 35 of the fixed receiving tray 34. When the feeding channel 323 is in the first working position, the receiving channel 35 and the feeding channel 323 are connected, and the grounding nail 4 slides from the receiving channel 35 to the feeding channel 323 under the action of gravity. At the same time, the air pressure applied to the bottom of the receiving channel 35 ensures that the grounding nail 4 is stably and accurately placed in the feeding channel 323, effectively avoiding material jamming or positional displacement.

[0058] Second embodiment, reference Figures 9-10 .

[0059] This embodiment provides an automatic chamfering machine, which consists of a CNC lathe 5 and the automatic feeding device described in the first embodiment. The CNC lathe 5 includes an open operating area 52. The vibratory feeder 1 is directly fixed to the top of the outer casing 51 of the CNC lathe 5 via a vibration damping support frame 6. The feeding mechanism 2 is fixed to the top surface of the outer casing 51 of the CNC lathe 5 via a first mounting seat 7, and the discharge port 22 of the feeding mechanism 2 is suspended in the operating area 52. The feeding mechanism 3 is mounted on the worktable 53 of the CNC lathe 5 via a second mounting seat 8. The worktable 53 is an X / Z axis slide table. The worktable 53 is provided with a tool mounting seat 54 for adding a Y-axis or a power turret to form a turning-milling compound.

[0060] The worktable 53 is also provided with a discharge channel 9, which is located between the tool mounting base 54 and the loading mechanism 3. By moving the worktable 53 along the X direction, one of the three components, namely the loading mechanism 3, the discharge channel 9 and the tool mounting base 54, can be switched to face the CNC chuck 55 of the CNC lathe 5 to perform corresponding process operations.

[0061] The operating procedure for an automatic chamfering machine is as follows:

[0062] Step 1: After the blank is cold-forged and preformed, the preformed grounding nail 4 is fed into the vibratory feeder 1. An automatic vibratory feeder 1 with a size matching the preformed grounding nail 4 is configured and installed on the CNC lathe 5. The preformed parts are gradually sorted along the spiral track by the action of the vibratory feeder 1, and after directional screening to unify the posture, they are transported to the feeding mechanism 2 through the discharge end 11.

[0063] Step 2: The feeding mechanism 2 sequentially conveys a single grounding nail 4 to the loading mechanism 3 via the discharge slide plate 24. The loading mechanism 3 completes the attitude switching of the grounding nail 4 through the steering device 32. After switching the grounding nail 4 to the direction to be processed, the pushing device 33 pushes the grounding nail 4 into the CNC chuck 55 of the CNC lathe 5.

[0064] Step 3: After the detection mechanism of the CNC lathe 5 detects that the grounding pin 4 has been installed on the CNC chuck 55, it starts the program and controls the chamfering tool to perform chamfering according to the pre-edited machining path;

[0065] Step 4: After the machining process is completed, the CNC lathe 5 controls the CNC chuck 55 to connect with the discharge channel 9 to unload the finished product.

[0066] The above description is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model by those skilled in the art within the scope of the technology disclosed in the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. An automatic feeding device for pointed grounding nails, characterized in that: It includes a vibratory feeder, a feeding mechanism and a loading mechanism. The vibratory feeder includes a discharge end, the feeding mechanism is provided with a feed inlet and a discharge outlet, and the loading mechanism is provided with a discharge outlet. The inlet and outlet are connected by a hose to form a feeding channel, and the outlet and discharge port are connected by a hose to form a discharge channel; the feeding mechanism is located below the vibrating plate along the height direction, and the loading mechanism is located below the feeding mechanism. The feeding mechanism includes a chute and a discharge slide plate. The discharge slide plate is slidably connected to the chute and is provided with a receiving groove. The discharge slide plate can be moved to a first position or a second position along the length of the chute by a discharge translation cylinder. When the discharge slide plate is in the first position, the receiving groove connects to the inlet; when the discharge slide plate is in the second position, the receiving groove connects to the discharge outlet. The feeding mechanism includes a steering device and a pushing device. The steering device includes a drive motor and a rotating disk driven by the motor. The rotating disk has a feeding channel arranged radially through the center point. The rotating disk can be rotated by the drive motor, and the feeding channel can be switched to a first state or a second state. When the feeding channel is in the first state, the upper passage of the feeding channel is connected to the unloading port. When the feeding channel is in the second state, the feeding channel is connected to the pushing device.

2. The automatic feeding device for pointed grounding nails according to claim 1, characterized in that: The discharge slide plate is provided with a receiving groove, and the bottom plate of the slide plate is provided with a discharge groove. Both the receiving groove and the discharge groove are through groove structures. The position of the discharge groove corresponds to the position of the discharge port. The receiving groove can receive one grounding nail at a time.

3. The automatic feeding device for pointed grounding nails according to claim 2, characterized in that: When the discharge slide plate is in the first position, the receiving groove and the discharge groove are misaligned. At this time, the bottom of the receiving groove is closed by the bottom plate of the slide to form a bearing surface. When the discharge slide plate is in the second position, the receiving groove and the discharge groove are vertically connected.

4. The automatic feeding device for pointed grounding nails according to claim 3, characterized in that: A material receiving and storage device is added directly above the chute, and the material receiving and storage device is provided with a vertically penetrating storage channel. The upper end of the storage channel is connected to the discharge end of the vibrating plate to form the inlet; when the discharge slide plate is in the first position, the lower end of the storage channel is coaxially aligned with the receiving trough.

5. The automatic feeding device for pointed grounding nails according to claim 1, characterized in that: In the first state, the feeding channel is arranged vertically; in the second state, the feeding channel is arranged horizontally. A CNC lathe chuck is provided on the left side of the steering device, the pusher is provided on the right side of the steering device, and the rotation direction of the rotating disk is set to clockwise.

6. The automatic feeding device for pointed grounding nails according to claim 5, characterized in that: The pushing device includes a pushing cylinder and a push rod fixed to the output end of the pushing cylinder; The pusher cylinder drives the pusher rod to extend into the feeding channel, and the pushing stroke length of the pusher rod is greater than the length of the feeding channel.

7. The automatic feeding device for pointed grounding nails according to claim 6, characterized in that: The end of the push rod away from the pusher cylinder is provided with a slot.

8. The automatic feeding device for pointed grounding nails according to claim 1, characterized in that: A fixed receiving plate is coaxially sleeved on the outer periphery of the rotating disk. The fixed receiving plate is fixed on the CNC lathe. The inner ring of the fixed receiving plate is clearance-fitted with the outer circle of the rotating disk so that the rotating disk can rotate relative to the fixed receiving plate. The fixed receiving tray is provided with a receiving channel along the vertical direction. The upper end of the receiving channel forms a discharge port. When the feeding channel is in the first state, the feeding channel is connected to the receiving channel.

9. An automatic chamfering machine for pointed grounding nails, characterized in that: It consists of the automatic feeding device according to any one of claims 1-8 and a CNC lathe; The CNC lathe includes an open operating area. The vibratory feeder is fixed to the top of the CNC lathe housing via a vibration damping support frame. The feeding mechanism is fixed to the top surface of the CNC lathe housing via a first mounting base, and the discharge port of the feeding mechanism is suspended within the operating area. The loading mechanism is mounted on the CNC lathe worktable via a second mounting base, and a tool mounting base is provided on the worktable.

10. An automatic chamfering machine for pointed grounding nails according to claim 9, characterized in that: The workbench is also provided with a discharge channel, which is located between the tool mounting base and the feeding mechanism.

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