A feeding mechanism and tooth extraction device

Abstract

The application relates to the technical field of tooth removal devices, and discloses a feeding mechanism and a tooth removal device. The feeding mechanism comprises an inclined rack, a sliding table, a clamping structure, a limiting structure and a material pushing structure. The rack is arranged on the sliding table, the material is orderly discharged by the material pushing structure, the rod piece is automatically clamped by the upper clamp head and the lower clamp head of the clamping structure after being limited by the limiting structure, and stable feeding of the rod piece is realized. The tooth removal device comprises a linear feeding mechanism, a rotary driving mechanism, a clamping mechanism and the above feeding mechanism. The linear feeding mechanism drives the rotary driving mechanism to move axially, the rotary driving mechanism drives the clamping mechanism to rotate and take out a threaded core bar, and the core bar is supported and finished product collection is completed in cooperation with a bearing disc. The application realizes automatic feeding and tooth removal integrated operation, replaces manual operation, reduces labor intensity, improves production efficiency, guarantees the machining precision of the internal thread of the rod piece and the consistency of the rod piece, and is suitable for automatic tooth removal production of guide screw rod pieces and other rod pieces with internal threads.

Description

Technical Field

[0001] This invention relates to the field of tooth extraction device technology, specifically to a feeding mechanism and a tooth extraction device. Background Technology

[0002] In the production of injection-molded guide screw rods, these rods are threaded guide components primarily used for equipment guidance, transmission connections, or positioning assembly. Their precise internal threads require a threaded mandrel in the mold for molding. After injection molding and cooling, the threaded mandrel tightly engages with the rod's internal threads, making direct ejection impossible. A de-threading process is necessary to unscrew the mandrel along the thread pitch, allowing for rod demolding and mandrel recycling. De-threading is an indispensable and crucial step in the molding process of these rods.

[0003] Currently, the industry generally uses manual thread removal. Operators first clamp and fix the rod in a vise, and then manually tighten the die thread core with a wrench to remove the threads. The entire process relies on manual positioning, clamping, and tightening. The operation steps are cumbersome, the labor intensity is high, and only one rod can be processed at a time, which cannot meet the needs of continuous and batch production, resulting in low overall production efficiency.

[0004] Manual thread removal presents significant quality risks. The force, speed, and axial feed of manual tightening are difficult to precisely match, easily damaging or scratching the end of the internal thread of the rod. This results in insufficient thread smoothness, non-compliant go / no-go gauges, and compromises in rod consistency and yield. Furthermore, manual operation suffers from poor stability, easily leading to problems such as core jamming and rod deformation, severely hindering the production quality and large-scale production of guide screw rods. Summary of the Invention

[0005] The purpose of this invention is to provide a feeding mechanism that enables automatic feeding, thereby improving the degree of automation and reliability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A feeding mechanism includes a material rack, a slide table, a clamping structure, and a limiting structure. The material rack is inclined and has a material feeding structure at its lower end. The material rack is fixedly installed on the slide table, and the slide table drives the material rack to move towards or away from the clamping structure. The clamping structure includes an upper clamp and a lower clamp arranged opposite to each other. The upper clamp and the lower clamp cooperate to clamp a rod. The limiting structure is used to limit the rod falling from the material rack.

[0007] In the above technical solution, after the guide spiral rod injection molding process cools, it is placed on a material rack. The material rack supports the rod, and a material-pushing structure blocks the rod on the rack. A slide moves the material rack towards the clamping structure, allowing the rack to engage with the limiting structure. The material-pushing structure then resets, releasing the obstruction of the rod. The rod moves along the inclined material rack under its own weight and contacts the limiting structure. At this point, the material-pushing structure is positioned between the two lowest rods. The material-pushing structure is activated, pushing and limiting the second-to-last rod. Then, the clamping structure clamps the lowest rod, and the slide moves the material rack back to its original position, completing the loading process. The entire process only requires manual or robotic placement of the rod on the rack to achieve automatic loading to the clamping structure position.

[0008] Preferably, the slide table includes a slide base, a slide frame, and a slide table drive component. The slide frame is slidably engaged with the slide base, and both ends of the drive component are fixedly connected to the slide base and the slide frame, respectively. The material rack is fixedly installed on the slide frame.

[0009] Preferably, the material feeding structure includes a material feeding drive, a rotating shaft, and a feeding block; one end of the material feeding drive is hinged to the material rack, and the other end is rotatably connected to the rotating shaft; the rotating shaft is rotatably connected to the feeding block, and the feeding block is rotatably connected to the material rack; the material rack has an opening for the feeding block to rotate, and the feeding block has a feeding groove at its feeding end, with the end of the feeding groove near the clamping structure being higher than the other end; when the feeding block is in the reset state, the feeding end of the feeding block is located in the opening; when the feeding block is in the feeding state, the feeding end of the feeding block feeds the rod.

[0010] Preferably, the limiting structure includes at least two limiting members, each limiting member having a limiting opening, and the end of the limiting member away from the material rack having a limiting stop. The material rack has a slot corresponding to the limiting structure. When the limiting stop abuts against the top of the slot, the upper end of the lever is located between the two rods.

[0011] Preferably, the clamping structure includes a clamping frame, a clamping drive component, a transmission component, two transmission rods, and a guide rod; The clamping drive is fixedly mounted on the clamping frame, and the driving end of the clamping drive is fixedly connected to the transmission component; one end of each of the two transmission rods is hinged to the upper and lower ends of the transmission component, respectively, and the other ends of the two transmission rods are hinged to the upper chuck and the lower chuck, respectively; the guide rod is fixedly connected to the clamping frame, and both the upper chuck and the lower chuck slide in cooperation with the guide rod.

[0012] Preferably, the limiting port is inclined downward towards the material rack, and the lower end of the limiting port is higher than the uppermost end of the lower clamp when it is in the open state.

[0013] Preferably, the transmission component is fixedly equipped with a sensor for detecting the position of the rod, and the sensor is located between the upper clamp and the lower clamp.

[0014] Another objective of this invention is to provide a tooth removal device that improves the quality of tooth removal and ensures the stability of the rod's quality.

[0015] To achieve another objective of this invention, the following technical solution is adopted: A thread removal device includes a linear feed mechanism, a rotary drive mechanism, a clamping mechanism, and the aforementioned feeding mechanism; the linear feed mechanism drives the rotary drive mechanism to move axially closer to or away from the feeding mechanism, the rotary drive mechanism drives the clamping mechanism to rotate, and the clamping mechanism is used to clamp the end of the threaded core bar.

[0016] In the above technical solution, the de-threading device integrates the aforementioned feeding mechanism to achieve automatic feeding and stable clamping of the rod. Then, the linear feed mechanism drives the rotary drive mechanism to feed precisely along the axial direction, causing the clamping mechanism to move to the rod position and clamp the threaded core. Afterward, the rotary drive mechanism, in conjunction with the linear feed mechanism, rotates the threaded core outward, achieving smooth separation of the threaded core from the internal thread of the rod, ensuring the integrity and undamaged internal thread, realizing fully automatic de-threading, and improving production efficiency and rod yield.

[0017] Preferably, it also includes a support frame, a support drive unit mounted on the support frame, and a support disk connected to the support drive unit, wherein the support drive unit drives the support disk to move below the screw-out threaded mandrel.

[0018] Preferably, it also includes a frame, and the linear feed mechanism, rotary drive mechanism and loading mechanism are all fixedly mounted on the frame. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of the guide screw rod; Figure 2 This is a schematic diagram of the structure of a threaded mandrel; Figure 3 A schematic diagram showing the fit between the guide screw and the threaded core bar; Figure 4 This is a schematic diagram of the feeding mechanism; Figure 5 for Figure 4 A structural diagram from another location; Figure 6 This is a schematic diagram of the slide table structure; Figure 7 for Figure 6 A structural diagram from another location; Figure 8 A schematic diagram of the material rack and material feeding structure; Figure 9 for Figure 8 A structural diagram from another angle after removing the block; Figure 10This is a schematic diagram of the material feeding structure; Figure 11 This is a schematic diagram of the limiting structure; Figure 12 This is a schematic diagram showing the cooperation between the clamping structure and the limiting structure; Figure 13 This is a schematic diagram of the upper and lower chucks; Figure 14 This is a partial schematic diagram of the clamping structure; Figure 15 This is a schematic diagram of a tooth extraction device; Figure 16 This is a schematic diagram of a linear feed mechanism, a rotary drive mechanism, and a clamping mechanism; Figure 17 A structural schematic diagram of the load-bearing plate, load-bearing frame, and load-bearing drive component; Figure 18 for Figure 17 A structural diagram from another location.

[0020] The components include: material rack 1, material feeding structure 11, material feeding drive component 111, rotating shaft 112, feeding block 113, opening 114, feeding groove 115, slide table 2, slide seat 21, slide frame 22, slide table drive component 23, clamping structure 3, upper chuck 31, lower chuck 32, clamping frame 33, clamping drive component 34, transmission component 35, transmission rod 36, guide rod 37, rod 4, threaded core bar 41, limiting component 5, limiting port 51, limiting stop 52, slot 53, linear feed mechanism 7, rotary drive mechanism 8, clamping mechanism 9, bearing frame 10, bearing drive component 101, bearing plate 102, and frame 103. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] like Figure 1-14 The present invention provides a feeding mechanism, including a material rack 1, a slide table 2, a clamping structure 3, and a limiting structure; the material rack 1 is inclined, and a material feeding structure 11 is provided at the lower end of the material rack 1. The material rack 1 is fixedly installed on the slide table 2, and the slide table 2 drives the material rack 1 to move towards or away from the clamping structure 3; the clamping structure 3 includes an upper clamp 31 and a lower clamp 32 arranged opposite to each other. The upper clamp 31 and the lower clamp 32 cooperate to clamp the rod 4, and the limiting structure is used to limit the rod 4 falling from the material rack 1.

[0023] In the above technical solution, rod 4 is a guide spiral rod type injection molding rod. After injection molding and cooling, it is placed on the material rack 1, which supports rod 4. The material rack 1 uses a material-pushing structure 11 to block rod 4 on the material rack 1. The slide table 2 drives the material rack 1 to move towards the clamping structure 3, so that the material rack 1 cooperates with the limiting structure. The material-pushing structure 11 resets, releasing the obstruction of rod 4. Rod 4 moves along the inclined material rack 1 by its own weight and comes into contact with the limiting structure. At this time, the material-pushing structure 11 is located between the two lowest rods 4. The material-pushing structure 11 is activated to push and limit the second to last rod 4. Then, the clamping structure 3 clamps the lowest rod 4. Finally, the slide table 2 drives the material rack 1 to reset, completing the loading. The whole process only requires manual or robotic arm to place rod 4 on the material rack 1, which can realize the automatic loading of rod 4 to the position of clamping structure 3.

[0024] It should be noted that the material rack 1 includes a base plate and limiting strips fixedly installed on both sides of the base plate. One of the limiting strips is L-shaped to accommodate the threaded core 41 extending from the end of the adapting rod 4, which limits the rod 4 while providing support for the threaded core 41. The base plate and the limiting strip can be welded or fixedly connected by bolts.

[0025] It should also be noted that the feeding structure is fixedly installed on the feeding base, which improves the structural compactness.

[0026] Furthermore, the slide table 2 includes a slide base 21, a slide frame 22 and a slide table drive component 23. The slide frame 22 is slidably engaged with the slide base 21. Both ends of the drive component are fixedly connected to the slide base 21 and the slide frame 22, respectively. The material rack 1 is fixedly installed on the slide frame 22.

[0027] In the above technical solution, the slide drive 23 drives the slide 22 to move, and then the slide 22 drives the material rack 1 to move closer to or away from the clamping structure 3.

[0028] It should be noted that the slide table 2 includes two end seats facing each other and two parallel guide rails, with both ends of the guide rails fixedly connected to the two end seats respectively; the slide frame 22 includes a slide plate and two support plates, with both ends of the slide plate connected to the two guide rails via linear bearings, and the two support plates connected to the two guide rails via linear bearings respectively. Support blocks are fixed to the support plates and the slide plate, and inclined blocks that are fixedly connected to the bottom of the material rack 1 are fixedly installed on the two support blocks; the slide table drive component 23 can be an electric push rod, hydraulic cylinder, pneumatic cylinder, etc., with one end fixedly connected to one of the end seats and the other end fixedly connected to the slide plate. The slide plate is moved by the slide table drive component 23, thereby moving the material rack 1.

[0029] The slide table 2 adopts a structure in which the slide base 21, the slide frame 22 and the slide table drive component 23 cooperate. The drive component drives the slide frame 22 to slide along the slide base 21 in a directional manner, which drives the material rack 1 to move back and forth smoothly, ensuring high positioning accuracy and stable and reliable movement, avoiding material deviation, improving the consistency of material feeding of the rod 4, and further ensuring smooth subsequent tooth removal operations.

[0030] Furthermore, the feeding structure 11 includes a feeding drive 111, a rotating shaft 112, and a feeding block 113; one end of the feeding drive 111 is hinged to the material rack 1, and the other end is rotatably connected to the rotating shaft 112; the rotating shaft 112 is rotatably connected to the feeding block 113, and the feeding block 113 is rotatably connected to the material rack 1; the material rack 1 has an opening 114 for the feeding block 113 to rotate, and the feeding end of the feeding block 113 is provided with a feeding groove 115, with the end of the feeding groove 115 near the clamping structure 3 being higher than the other end. When the feeding block 113 is in the reset state, the feeding end of the feeding block 113 is located in the opening 114; when the feeding block 113 is in the feeding state, the feeding end of the feeding block 113 feeds the rod 4.

[0031] In the above technical solution, the feeding structure 11 drives the rotating shaft 112 and the feeding block 113 to rotate through the feeding drive component 111. In conjunction with the opening 114 of the material rack 1, the rod 4 is fed out in an orderly manner. The height difference design of the feeding groove 115 facilitates the precise lifting and release of the rod 4. It does not interfere with the material rack 1 when resetting and provides stable material distribution when feeding.

[0032] It should be noted that the material feeding drive 111 can be an electric push rod, hydraulic cylinder, pneumatic cylinder, etc. Two ear plates are fixed at the upper end of the material rack 1. The material feeding drive 111 is hinged to the ear plates. The other end of the material feeding drive 111 is rotatably connected to the rotating shaft 112. Preferably, two feeding blocks 113 are provided and are rotatably connected to both ends of the rotating shaft 112 respectively. Pins are protruding on both sides of the feeding blocks 113, and the rotatable connection with the material rack 1 is achieved through the pins. In order to facilitate material feeding, a feeding groove 115 is provided at the end of the feeding block 113. The feeding groove 115 has an arc-shaped surface that conforms to the shape of the rod 4. The end of the feeding groove 115 near the clamping structure 3 is higher than the other end, which facilitates the limiting of the rod 4. When feeding is required, the feeding drive 111 drives the pusher block 113 to rotate and reset via the rotating shaft 112, allowing the pusher block 113 to enter the opening 114 and avoid obstructing the rod 4. When feeding is required, the upper end of the pusher block 113 is located between the two rods 4. The feeding drive 111 drives the pusher block 113 to rotate via the rotating shaft 112. The upper end of the pusher block 113 rotates upward and pushes the penultimate rod 4 through the pusher groove 115, thereby limiting the movement of the penultimate rod 4. A stop block is fixed on the material rack, and the distance between the stop block and the material rack allows a single rod to pass through, but does not allow two overlapping rods to pass through, ensuring the stability of feeding.

[0033] Furthermore, the limiting structure includes at least two limiting members 5, each limiting member 5 having a limiting opening 51, and the end of the limiting member 5 away from the material rack 1 having a limiting stop 52. The material rack 1 has a slot 53 corresponding to the limiting structure. When the limiting stop 52 abuts against the top of the slot 53, the upper end of the lever 113 is located between the two rods 4.

[0034] In the above technical solution, the limiting structure uses a limiting member 5 with a limiting port 51 and a limiting stop 52 to cooperate with the slot 53 of the material rack 1 to achieve positioning, ensuring that the push block 113 separates only a single rod 4 each time, thereby improving the reliability of rod 4 conveying.

[0035] It should be noted that the limiting member 5 is a plate, and its limiting stop 52 is located on one side of the limiting opening 51 and the height of the limiting stop 52 is higher than that of the limiting opening 51. When feeding, the material rack 1 moves towards the limiting member 5, and the limiting member 5 abuts against the top of the slot 53. The material rack 1 moves into place, and then the feeding structure 11 resets. The rod 4 rolls down along the inclined surface of the material rack 1. The rod 4 at the bottom contacts the limiting stop 52. At this time, the actuating end of the actuating block 113 is located between the two bottommost rods 4. The actuating block 113 moves to limit the second to last rod 4. Then the clamping structure 3 clamps the bottommost rod 4.

[0036] Furthermore, the clamping structure 3 includes a clamping frame 33, a clamping drive component 34, a transmission component 35, two transmission rods 36, and a guide rod 37; the clamping drive component 34 is fixedly mounted on the clamping frame 33, and the driving end of the clamping drive component 34 is fixedly connected to the transmission component 35; one end of each of the two transmission rods 36 is hinged to the upper end and the lower end of the transmission component 35, respectively, and the other end of each of the two transmission rods 36 is hinged to the upper chuck 31 and the lower chuck 32, respectively; the guide rod 37 is fixedly connected to the clamping frame 33, and both the upper chuck 31 and the lower chuck 32 are slidably engaged with the guide rod 37.

[0037] In the above technical solution, the clamping drive component 34 can be an electric push rod, hydraulic cylinder, pneumatic cylinder, etc., which is fixedly installed on the clamping frame 33. The clamping frame 33 is inverted L-shaped and has an opening for the drive end of the clamping drive component 34 to pass through. The drive end of the clamping drive component 34 is fixedly connected to the transmission component 35. The transmission component 35 can be block-shaped, U-shaped with the opening 114 facing the material rack 1, or other shapes. When the clamping drive component 34 extends or retracts, it drives the transmission rod 36 to move through the transmission component 35. The two transmission rods 36 are symmetrically arranged. The two transmission rods 36 drive the upper chuck 31 and the lower chuck 32 to move closer to each other to clamp or move away to release the clamp. During the operation, the guide rod 37 guides the movement of the upper chuck 31 and the lower chuck 32 to make the movement of the upper chuck 31 and the lower chuck 32 stable. There can be two guide rods 37. The upper chuck 31 and the lower chuck 32 are connected to the guide rod 37 through linear bearings. Since the clamping frame 33 is inverted L-shaped, the upper end of the guide rod 37 is fixedly connected to the clamping frame 33.

[0038] It should also be noted that the upper chuck 31 and the lower chuck 32 are symmetrically arranged. Both the upper chuck 31 and the lower chuck 32 include a clamping end, a clamping seat fixedly connected to the clamping end, and two guide blocks fixedly connected to the clamping seat. Of course, the clamping end, the clamping seat, and the guide blocks can be integrally formed. The clamping end has a V-shaped clamping opening. In order to better ensure the quality of the rod 4, a rubber pad can be placed in the clamping opening.

[0039] Furthermore, the limiting port 51 is inclined downward towards the material rack 1, and the lower end of the limiting port 51 is higher than the uppermost end of the lower clamp 32 when it is in the open state.

[0040] In the above technical solution, after the teeth are removed, the clamping structure 3 releases its grip on the rod 4. At this time, the lower chuck 32 moves to below the limiting port 51, and the rod 4 rolls down with the limiting port 51 to achieve automatic material dropping. Since the lower end of the limiting port 51 is higher than the uppermost end of the lower chuck 32 when it is in the open state, the lower chuck 32 will not interfere with the falling of the rod 4 in the limiting port 51.

[0041] It should be noted that a gap is provided between the limiting member 5 and the slide table 2, which forms a material picking grid. The product with the threaded core strip 41 removed falls into the material picking grid. The lower chuck 32 is in the open state, that is, the clamping state is released.

[0042] Furthermore, a sensor for detecting the position of the rod 4 is fixedly installed on the transmission component 35, and the sensor is located between the upper clamp 31 and the lower clamp 32.

[0043] In the above technical solution, a sensor is set in the transmission component 35 to detect the position status of the rod 4 in real time, so as to realize automatic sensing and clamping and tooth disengagement start-up without manual judgment and triggering, thereby improving the automation level of the device, reducing manual intervention, and improving work efficiency and action accuracy.

[0044] It should be noted that the threaded core bar 41 is made of metal, and a metal induction sensor is selected accordingly. This sensor can accurately and stably identify the position of the rod 4. It is sensitive and highly adaptable, ensuring that the detection action is accurate and error-free.

[0045] like Figure 15-18 As shown, the present invention also provides a tooth removal device, including a linear feed mechanism 7, a rotary drive mechanism 8, a clamping mechanism 9, and the aforementioned feeding mechanism; the linear feed mechanism 7 drives the rotary drive mechanism 8 to move axially closer to or away from the feeding mechanism, the rotary drive mechanism 8 drives the clamping mechanism 9 to rotate, and the clamping mechanism 9 is used to clamp the end of the threaded core bar 41.

[0046] In the above technical solution, the de-threading device integrates the aforementioned feeding mechanism to achieve automatic feeding and stable clamping of the rod 4. Then, the linear feed mechanism 7 drives the rotary drive mechanism 8 to feed precisely along the axial direction, causing the clamping mechanism 9 to move to the position of the rod 4 and clamp the threaded core 41. Afterward, the rotary drive mechanism 8, in conjunction with the action of the linear feed mechanism 7, rotates the threaded core 41 outward, achieving smooth separation of the threaded core 41 from the internal thread of the rod 4, ensuring the integrity and undamaged internal thread, realizing fully automatic de-threading, and improving production efficiency and the yield of the rod 4.

[0047] It should be noted that the linear feed mechanism 7 can adopt a lead screw and nut structure, a linear module, etc., which drives the rotary drive mechanism 8 to achieve linear movement. The rotary drive mechanism 8 includes a base, on which a motor is mounted. The output shaft of the motor is fixedly connected to the clamping mechanism 9. The clamping mechanism 9 can adopt a clamping cylinder or a three-jaw chuck, etc., to clamp the end of the threaded core bar 41 located outside the rod 4, and drive it to rotate through the motor so as to disengage it from the rod 4.

[0048] It should also be noted that the feed speed of the linear feed mechanism 7 and the rotation speed of the rotary drive mechanism 8 must match the pitch parameters of the thread core bar 41 to ensure that their movements are synchronized and coordinated. This ensures that the axial feed speed and rotation speed of the thread core bar 41 correspond to the thread helix angle during the unscrewing process, effectively avoiding motion interference and preventing jamming or scratching between the thread core bar 41 and the internal thread of the rod 4. This ensures a smooth and stable unscrewing process and further protects the accuracy of the internal thread and the integrity of the thread core bar 41.

[0049] Furthermore, it also includes a support frame 10, a support drive 101 mounted on the support frame 10, and a support disk 102 connected to the support drive 101. The support drive 101 drives the support disk 102 to move below the screw-out threaded core bar 41.

[0050] In the above technical solution, the load-bearing drive component 101 can be an electric push rod, a hydraulic cylinder, a pneumatic cylinder, etc., preferably a double-outlet double-headed pneumatic cylinder. The two ends of the push rod of the double-outlet double-headed pneumatic cylinder are fixedly connected to the support frame. The cylinder body moves along the push rod, and the two ends of the cylinder body are fixedly connected to the two ends of the support plate through connecting parts. After the threaded core bar 41 exits the rod 4, the load-bearing drive component 101 drives the support plate 102 to move below the threaded core bar 41. The clamping mechanism 9 releases the clamp, the threaded core bar 41 falls to the support plate 102, and then the load-bearing drive component 101 drives the support plate 102 to reset.

[0051] It should be noted that the preferred direction of movement of the carrier plate 102 is perpendicular to the feed direction of the linear feed mechanism 7. The carrier plate 102 is provided with a carrier area, and a guide ramp is provided on the side of the carrier area near the linear feed mechanism 7.

[0052] Furthermore, it also includes a frame 103, on which the linear feed mechanism 7, the rotary drive mechanism 8, and the feeding mechanism are all fixedly mounted. By uniformly mounting the linear feed mechanism 7, the rotary drive mechanism 8, and the feeding mechanism on the frame 103, the overall structure is compact and the installation is stable.

[0053] It should also be noted that this device is also equipped with a controller, which can be a general-purpose programmable logic controller, a microcontroller or other conventional control components, with a programmable logic controller being preferred. The controller is electrically connected to the human-machine interface, various sensors and various driving components. It coordinates the orderly operation of each mechanism through a built-in predetermined control program. The overall control logic and circuit connection can be implemented using mature existing technologies in this field. The structure is simple, the debugging is convenient, and it can stably and reliably complete the entire automated feeding and thread stripping operation.

[0054] Operating procedures: 1. The operator manually or by means of a robotic arm places the injection-molded rod 4 into the material rack 1 of the feeding mechanism. The material rack 1 is inclined and equipped with a material feeding structure 11 at the lower end. The material feeding structure 11 blocks and limits the rod 4. 2. The slide table 2 drives the material rack 1 to move to fit with the limiting part 5, the material feeding structure 11 is reset, the rod 4 at the bottom fits with the limiting part 5, the material feeding drive 111 drives the rotating shaft 112 and the feeding block 113 to rotate, and the feeding groove 115 of the feeding block 113 lifts the second to last rod 4. 3. The clamping structure 3 clamps the rod 4 located at the lowest end, and the material rack 1 is reset; 4. The linear feed mechanism 7 of the tooth removal device is started, driving the rotary drive mechanism 8 and the clamping mechanism 9 to move to the starting position of the unscrewing. The clamping mechanism 9 is started to clamp the end of the threaded core bar 41. The rotary drive mechanism 8 is started and begins to rotate. At the same time, the linear feed mechanism 7 moves out axially at a set speed, precisely matching the pitch parameter of the threaded core bar 41, until the threaded core bar 41 is completely unscrewed from the rod 4. 5. The bearing drive 101 drives the bearing disk 102 to move directly below the threaded core bar 41, the clamping mechanism 9 is released, the screwed-out threaded core bar 41 falls into the bearing disk 102, and the bearing drive 101 drives the bearing disk 102 to reset. 6. The clamping structure 3 is reset, the upper clamp 31 and the lower clamp 32 slide in opposite directions to release the finished rod 4, and the finished rod 4 automatically falls into the material picking grid. The operator collects the finished products in a unified manner according to the mold batch, completing a single automated feeding and unloading operation, and then enters the next operation cycle.

[0055] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "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 invention 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 invention.

[0056] In the description of this invention, 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 communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A feeding mechanism, characterized in that, It includes a material rack (1), a slide table (2), a clamping structure (3), and a limiting structure; The material rack (1) is inclined and the lower end of the material rack (1) is provided with a material feeding structure (11). The material rack (1) is fixedly installed on the slide table (2). The slide table (2) drives the material rack (1) to move closer to or further away from the clamping structure (3). The clamping structure (3) includes an upper clamp (31) and a lower clamp (32) arranged opposite to each other. The upper clamp (31) and the lower clamp (32) cooperate to clamp the rod (4). The limiting structure is used to limit the rod (4) falling from the material rack (1).

2. The feeding mechanism according to claim 1, characterized in that, The slide table (2) includes a slide base (21), a slide frame (22) and a slide table drive (23). The slide frame (22) is slidably engaged with the slide base (21). The two ends of the drive are fixedly connected to the slide base (21) and the slide frame (22) respectively. The material rack (1) is fixedly installed on the slide frame (22).

3. The feeding mechanism according to claim 1 or 2, characterized in that, The feeding structure (11) includes a feeding drive (111), a rotating shaft (112), and a feeding block (113). One end of the feeding drive (111) is hinged to the material rack (1), and the other end is rotatably connected to the rotating shaft (112). The rotating shaft (112) is rotatably connected to the feeding block (113), and the feeding block (113) is rotatably connected to the material rack (1). The material rack (1) has an opening (114) for the feeding block (113) to rotate. The feeding end of the feeding block (113) is provided with a feeding groove (115). The end of the feeding groove (115) near the clamping structure (3) is higher than the other end. When the feeding block (113) is in the reset state, the feeding end of the feeding block (113) is located in the opening (114). When the feeding block (113) is in the feeding state, the feeding end of the feeding block (113) feeds the rod (4).

4. The feeding mechanism according to claim 3, characterized in that, The limiting structure includes at least two limiting members (5). The limiting member (5) has a limiting opening (51). The end of the limiting member (5) away from the material rack (1) has a limiting stop (52). The material rack (1) has a slot (53) corresponding to the limiting structure. When the limiting stop (52) abuts against the top of the slot (53), the upper end of the lever (113) is located between the two rods (4).

5. The feeding mechanism according to claim 1, 2, or 4, characterized in that, The clamping structure (3) includes a clamping frame (33), a clamping drive component (34), a transmission component (35), two transmission rods (36) and a guide rod (37). The clamping drive (34) is fixedly installed on the clamping frame (33), and the driving end of the clamping drive (34) is fixedly connected to the transmission component (35); one end of the two transmission rods (36) is hinged to the upper end and the lower end of the transmission component (35) respectively, and the other end of the two transmission rods (36) is hinged to the upper chuck (31) and the lower chuck (32) respectively; the guide rod (37) is fixedly connected to the clamping frame (33), and the upper chuck (31) and the lower chuck (32) are both slidably engaged with the guide rod (37).

6. The feeding mechanism according to claim 5, characterized in that, The limiting port (51) is inclined downward towards the material rack (1), and the lower end of the limiting port (51) is higher than the uppermost end of the lower clamp (32) in the open state.

7. The feeding mechanism according to claim 5, characterized in that, The transmission component (35) is fixedly equipped with a sensor for detecting the position of the rod (4), which is located between the upper clamp (31) and the lower clamp (32).

8. A tooth extraction device, characterized in that, The linear feed mechanism (7), the rotary drive mechanism (8), the clamping mechanism (9), and the feeding mechanism according to any one of claims 1 to 7; the linear feed mechanism (7) drives the rotary drive mechanism (8) to move axially closer to or away from the feeding mechanism, the rotary drive mechanism (8) drives the clamping mechanism (9) to rotate, and the clamping mechanism (9) is used to clamp the end of the threaded core bar (41).

9. The tooth extraction device according to claim 8, characterized in that, It also includes a support frame (10), a support drive (101) mounted on the support frame (10), and a support disk (102) connected to the support drive (101), wherein the support drive (101) drives the support disk (102) to move below the screw-out threaded core bar (41).

10. The tooth extraction device according to claim 8 or 9, characterized in that, It also includes a frame (103), a linear feed mechanism (7), a rotary drive mechanism (8) and a feeding mechanism, all of which are fixedly mounted on the frame (103).

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