A screw machining blank feeding mechanism

Abstract

This invention relates to the field of bolt processing technology and discloses a bolt blank feeding mechanism, including a feeding mechanism and a transport component for moving blanks one by one onto the feeding mechanism and driven to rotate by a drive mechanism. The drive mechanism drives the transport component to rotate clockwise and counterclockwise. The transport component includes a fixedly connected rotating wheel and a semi-ring. One end of the semi-ring is a wedge-shaped surface, and the other end is a flat surface. In the initial state, a blank rolls onto the flat surface under the action of gravity and is blocked and limited by the rotating wheel. Even without using a length detection mechanism, when the power output end of the feeding mechanism moves a certain distance, this invention can still ensure that the first movement distance and subsequent movement distances of each blank are the same during the process of conveying several blanks one by one, thereby making the length of the segmented cutting of several blanks uniform.

Description

Technical Field

[0001] This invention relates to the field of bolt processing technology, and more specifically to a blank feeding mechanism for bolt processing. Background Technology

[0002] In the bolt manufacturing process, a feeding mechanism typically feeds several blanks of the same length (the production of blanks is an upstream process of blank feeding, and the processed blanks are of the same length, so details are omitted) one by one onto a conveying mechanism. Under the action of the conveying mechanism, the blanks are continuously transported to the cutting station to be cut into multiple segments of the same length. Then, the cut segments are stamped to form bolt heads, followed by polishing and rust removal, and then thread processing to form the bolt. The conveying mechanism is part of the feeding mechanism, and it plays a crucial role in ensuring that the segments cut from the blanks are of the same length.

[0003] In existing technologies, to ensure that the lengths of the metal segments cut during the segmented cutting of the bolt blank are as uniform as possible, a length detection mechanism is usually used. For example, the existing patent with application number CN201810818057.0, entitled "A shearing device for bolt processing", discloses "a cutting blade, a meter counter that cooperates with the cutting blade, a positioning through hole on the substrate, a feed port, etc. Through the cooperation of the feed port and the positioning through hole, the steel to be cut is transported smoothly during the cutting process. The meter counter and the cutting blade cooperate to accurately cut the steel, ensuring the uniformity of the bolt blank length, providing convenience for subsequent processing, and improving the processing quality of the bolts."

[0004] While existing technologies can measure the length of the blank by adding a length detection device, thus ensuring uniform length of the blank cut by the cutting blade, the applicant has discovered at least the following drawbacks in continuous practical processing:

[0005] In actual screw manufacturing, when using length detection equipment to ensure the cutting length of the blank, different length detection devices have varying measurement accuracy and responsiveness. To better ensure uniform cutting length, a more accurate and sensitive length detection device is needed, but such devices are expensive, increasing equipment costs. Conversely, if length detection equipment is omitted to reduce costs, it's difficult to accurately achieve uniform lengths for each segment of the blank. This is mainly because when each blank is moved onto the feeding mechanism, its axial position is unpredictable. Initially, the power output of the feeding mechanism is specific and usually located near the end of the blank (by applying a thrust to the end of the blank, the blank moves towards the cutting blade; multiple movements allow for multiple cuts). However, because the axial positions of each blank on the feeding mechanism are not identical, the distance between the end of the blank and the power output of the feeding mechanism is also inconsistent. Therefore, when the power output of the feeding mechanism... When different blanks are moved for the first time with the same travel length, the distances they travel will differ. When different blanks are moved a second, third, and subsequent time, the power output end of the feeding mechanism will always contact the end of the blank, so the distances they travel will be the same, and the lengths of the cut blank segments will also be the same. However, the key issue is that the initial travel distances of different blanks are unlikely to be the same. Without a length detection mechanism, it's impossible to determine where the blank will stop moving. In other words, even with a fixed travel length from the power output end of the feeding mechanism, the lengths of the cut blank segments will differ after the first cut, making it difficult to standardize the lengths of the blank segments. Ultimately, this leads to inconsistent bolt lengths. Therefore, a pressing technical problem needs to be solved: how to ensure that the initial travel distance and subsequent travel distances of each blank are the same during the feeding process, even without a length detection mechanism and with a fixed power output end travel length, thus achieving uniform lengths for the cut segments of several blanks. Summary of the Invention

[0006] The purpose of this invention is to provide a blank feeding mechanism for bolt processing to overcome the above-mentioned shortcomings in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a blank feeding mechanism for bolt processing, comprising a feeding mechanism and a transport component for moving blanks one by one onto the feeding mechanism and being driven to rotate by a drive mechanism, wherein the drive mechanism drives the transport component to rotate clockwise and counterclockwise, and the transport component comprises a rotating wheel and a semi-ring fixedly connected, wherein one end of the semi-ring is a wedge-shaped surface and the other end is a plane, and in the initial state, a blank rolls onto the plane under the action of gravity and is blocked and limited by the rotating wheel;

[0008] The feeding mechanism includes a sliding plate that is elastically slidable, a support plate that is rotatably configured and linked with the sliding plate, and a power output end. The sliding plate abuts against the wedge-shaped surface. During the process of the conveying component rotating counterclockwise to drive the blank located on the plane to move onto the support plate, the wedge-shaped surface and the sliding plate gradually move away from each other. After that, the conveying component rotates clockwise to drive the wedge-shaped surface to push the sliding plate in an elastic sliding manner, thereby driving the support plate to rotate and causing the end of the blank to abut against the power output end.

[0009] The above-mentioned bolt processing blank feeding mechanism also includes a placement plate for placing and fixing several blanks, wherein the outer surface of the semi-ring abuts against the blank located at the far end of the placement plate to limit the blank.

[0010] In the above-mentioned bolt processing blank feeding mechanism, the slide plate is located between the semi-ring and the support plate. The top surface of the slide plate is inclined downward toward the support plate. The top of the support plate is provided with an arc groove that is adapted to the blank. During the process of the conveying component conveying the blank, the blank falls on the top surface of the arc groove and rolls into the arc groove.

[0011] In the above-mentioned blank feeding mechanism for bolt processing, after the end of the blank abuts against the power output end, the sliding plate and the support plate are limited by the abutment between the wedge surface and the sliding plate. After that, the power output end pushes the blank to move a specific length along the arc groove axis to cut the blank into segments.

[0012] In the above-mentioned bolt processing blank feeding mechanism, a guide rod is slidably inserted into the slide plate. The guide rod is fixedly installed on the base plate through a third fixing plate. A compression spring is sleeved on the guide rod. One end of the compression spring elastically abuts against the third fixing plate, and the other end elastically abuts against the slide plate.

[0013] In the above-mentioned bolt processing blank feeding mechanism, a protrusion that slides against a wedge-shaped surface is fixedly installed on the side of the slide away from the compression spring. The contact between the slide and the wedge-shaped surface is achieved by the contact between the protrusion and the wedge-shaped surface.

[0014] In the above-mentioned bolt processing blank feeding mechanism, a toothed plate is fixedly connected to the slide plate, and a gear that meshes with the toothed plate is fixedly installed on the support plate. The toothed plate is slidably connected to a second fixed plate that is fixedly connected to the base plate. When the wedge-shaped surface pushes the slide plate to slide elastically, it compresses the compression spring and drives the toothed plate to slide synchronously. The sliding of the toothed plate drives the support plate to rotate through the gear so that the blank moves toward the power output end.

[0015] The above-mentioned bolt processing blank feeding mechanism further includes a second motor and a slide rail fixedly mounted on the base plate. A push plate for pushing the blank is slidably arranged on the slide rail. The push plate is the power output end. A lead screw is coaxially connected to the output shaft of the slide rail. The push plate is threaded onto the lead screw. The second motor drives the lead screw to rotate, thereby driving the push plate to slide along the slide rail to push the blank.

[0016] In the above-mentioned bolt processing blank feeding mechanism, after the blank is divided, the conveying component rotates clockwise to reset, driving the wedge surface to push the slide plate to slide further elastically so that the toothed plate drives the support plate to increase the tilt angle so that the debris remaining on the inner wall of the arc groove can be removed.

[0017] In the above-mentioned bolt processing blank feeding mechanism, the number of the rotating wheels, half rings and sliding plates are all multiple and arranged in a one-to-one correspondence along the axial direction of the blank. The multiple rotating wheels are coaxially fixedly connected by a rotating rod. The rotating rod is rotatably connected to a fourth fixed plate fixedly installed on the base plate. One end of the rotating rod is connected to the output shaft of the drive mechanism.

[0018] Beneficial Effects: In the above technical solution, the bolt processing blank feeding mechanism provided by the present invention utilizes a conveying component that can be driven to rotate clockwise and counterclockwise, a sliding plate that is elastically slidable, and a support plate that is linked and rotated with the sliding plate. After the semi-ring rotates counterclockwise to transport the blank onto the support plate, the sliding contact between the wedge-shaped surface and the sliding plate allows the semi-ring to then rotate clockwise, pushing the sliding plate to slide elastically. The linkage between the sliding plate and the support plate causes the support plate to rotate towards the power output end of the feeding mechanism when it slides elastically. The friction between the support plate and the blank, when the support plate rotates, can drive the blank towards the power output end, thereby bringing the end of the blank into contact with the power output end. Following this operation, although the distance between the end of each blank and the power output end varies after it is transported to the support plate, the support plate moves the blanks so that the ends of several blanks all come into contact with the power output end. Therefore, when the power output end moves a specific length, the distance each blank moves the first time is the same, and the distances for the second, third, and subsequent moves are also the same, thus ensuring uniform lengths for the segmented cutting of several blanks. Therefore, even without a length detection mechanism, when the power output end of the feeding mechanism moves a fixed length, this invention can still ensure that the first and subsequent movement distances of each blank are the same during the conveying of several blanks, thereby ensuring uniform lengths for the segmented cutting of several blanks, effectively overcoming the shortcomings of the prior art.

[0019] Meanwhile, since the blank is not machined before segmented cutting, its surface is covered with a large amount of metal slag. When it is transported to the support plate and during the conveying process, the metal slag will continuously fall into the arc groove at the top of the support plate. When there is a lot of metal slag in the arc groove, the blank will tilt after rolling into the arc groove, which will affect the uniformity of the blank cutting length and the perpendicularity of the cutting surface. In this invention, the blank is cleverly made to fall on the top surface of the slide plate first when it is transported to the support plate, so as to generate an impact force. The impact force can shake off the metal slag on the blank. After the blank falls on the slide plate, it rolls down along the top of the slide plate. During the rolling process, the metal slag falls further, so that when the blank moves into the arc groove, the amount of metal slag falling into the arc groove can be greatly reduced, so that the blank is less likely to tilt when it rolls into the arc groove, thereby improving the uniformity of the blank cutting length and the perpendicularity of the cutting surface.

[0020] Furthermore, since friction is generated between the blank and the arc groove during the process of being pushed by the power output end, the metal slag adhering to the blank is left in the arc groove. The present invention, through the ingenious rotation design of the support plate, not only enables the end of the blank to abut against the power output end before cutting, but also enables the support plate to rotate and tilt further during the reset process after the blank is cut, so that the slag left on the arc groove can automatically detach from the arc groove, thereby further reducing the metal slag remaining in the arc groove, and further improving the uniformity of the blank cutting length and the perpendicularity of the cutting surface. The rotation design of the support plate has produced unexpected technical effects. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a first-view structural schematic diagram of the blank feeding mechanism provided in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the billet feeding mechanism provided in an embodiment of the present invention from a second perspective.

[0024] Figure 3 A schematic diagram of the blank feeding mechanism after removing the slide rail, lead screw, push plate and second motor, provided in an embodiment of the present invention;

[0025] Figure 4 Provided for embodiments of the present invention Figure 3 A magnified structural diagram of part A in the diagram;

[0026] Figure 5 This is a schematic diagram of the linkage and cooperation structure between the skateboard and the support plate provided in an embodiment of the present invention;

[0027] Figure 6 This is a partial structural diagram of the semi-ring and the protrusion abutting in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure between the semi-ring and the rotating wheel provided in an embodiment of the present invention;

[0029] Figure 8 A schematic diagram showing the disassembly of the slide rail, lead screw, push plate, and second motor provided in an embodiment of the present invention;

[0030] Figure 9 This is a cross-sectional schematic diagram of a blank rolling onto a plane in its initial state, as provided in an embodiment of the present invention.

[0031] Figure 10 A cross-sectional schematic diagram of the billet rolling toward the support plate when the semi-ring and wedge-shaped surfaces do not abut against the slide plate, as provided in an embodiment of the present invention;

[0032] Figure 11 This is a cross-sectional schematic diagram showing the contact process between the wedge-shaped surface and the sliding plate, as provided in an embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Base plate; 2. Slide plate; 3. Support plate; 301. Arc groove; 4. Tooth plate; 401. Side plate; 5. Gear; 6. Rotary wheel; 7. Semi-ring; 701. Wedge-shaped surface; 702. Flat surface; 8. Slide rail; 9. Push plate; 901. Upper sliding plate; 902. Lower pushing plate; 10. Lead screw; 11. First fixing plate; 12. Second fixing plate; 13. Protrusion; 14. First connecting plate; 15. Third fixing plate; 16. Second connecting plate; 17. First motor; 18. Second motor; 19. Placement plate; 20. Blank; 21. Guide rod; 22. Compression spring; 23. Rotating rod; 24. Fourth fixing plate; 25. Fifth fixing plate. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] like Figure 1-11 As shown in the figure, an embodiment of the present invention provides a blank feeding mechanism for bolt processing, including a feeding mechanism and a transport component for moving blanks 20 one by one onto the feeding mechanism and being driven to rotate by a drive mechanism. The drive mechanism drives the transport component to rotate clockwise and counterclockwise. The transport component is characterized in that: the transport component includes a rotating wheel 6 and a semi-ring 7 fixedly connected. One end of the semi-ring 7 is a wedge-shaped surface 701 and the other end is a plane 702. In the initial state, a blank 20 rolls onto the plane 702 under the action of gravity and is blocked and limited by the rotating wheel 6.

[0037] The feeding mechanism includes a sliding plate 2 that is elastically slidable, a support plate 3 that is rotatably configured and linked with the sliding plate 2, and a power output end. The sliding plate 2 abuts against the wedge-shaped surface 701. During the process of the conveying component rotating counterclockwise to drive the blank 20 located on the plane 702 to move onto the support plate 3, the wedge-shaped surface 701 and the sliding plate 2 gradually separate. After that, the conveying component rotates clockwise to drive the wedge-shaped surface 701 to push the sliding plate 2 to drive the support plate 3 to rotate in an elastic sliding manner, causing the end of the blank 20 to abut against the power output end.

[0038] The bolt processing blank feeding mechanism provided in this embodiment is used to transport and continuously feed the blank 20 towards the cutting blade for segmented cutting. In this embodiment, terms related to direction and position are relative to the accompanying drawings. Specifically, it includes a base plate 1, a feeding mechanism, a driving mechanism, and a transport component, all mounted on the base plate 1. The transport component is rotatably mounted on the base plate 1 and driven to rotate by the driving mechanism. The transport component transports the blanks 20 to be segmented one by one onto the feeding mechanism, which then feeds them towards the cutting blade for segmented cutting. The drive mechanism includes a first motor 17, which is a servo motor. The output shaft of the first motor 17 is coaxially connected to the rotating wheel 6. Starting the first motor 17 can drive the rotating wheel 6 to rotate. The semi-ring 7 is fixedly installed on the outer circumference of the rotating wheel 6. The rotation of the rotating wheel 6 drives the semi-ring 7 to rotate synchronously. The first motor 17 can rotate in both the forward and reverse directions so that the rotating wheel 6 and the semi-ring 7 can rotate clockwise and counterclockwise. The wedge-shaped surface 701 and the rotating wheel 6 form a limiting range that restricts the movement of the blank 20. The limiting range can only accommodate one blank 20, so that the conveying component can only convey one blank 20 to the support plate 3 at a time. In the initial state, plane 702 is inclined and its position allows the blank 20 to be cut to roll onto plane 702 and abut against the outer circumferential surface of the roller 6. At this time, under the limiting action of the outer circumferential surface of the roller 6 and plane 702, the blank 20 is limited in the limiting range and cannot roll. Then, when the drive mechanism drives the roller 6 and the half ring 7 to rotate counterclockwise, it can drive the blank 20 to be transported towards the support plate 3. When the blank 20 is transported onto the support plate 3, it is transported to the feeding mechanism.

[0039] The support plate 3 is rotatably mounted on the base plate 1, and the slide plate 2 is elastically slidably mounted on the base plate 1. Based on the linkage between the slide plate 2 and the support plate 3, the sliding of the slide plate 2 can drive the support plate 3 to rotate. When the sliding direction of the slide plate 2 is different, the rotation direction of the support plate 3 is also different. The slide plate 2 slides and abuts against the wedge surface 701 on the semi-ring 7, so that when the semi-ring 7 rotates, it can drive the wedge surface 701 to push the slide plate 2 to slide elastically. The elastic sliding of the slide plate 2 is to enable the slide plate 2 to automatically reset. Specifically, when the semi-ring 7 rotates counterclockwise from its initial state, it can simultaneously transport a blank 20 that has fallen on the plane 702 to the support plate 3, and gradually offset the semi-ring 7 and the wedge-shaped surface 701 from the slide plate 2 so that neither the semi-ring 7 nor the wedge-shaped surface 701 abuts against the slide plate 2. The semi-ring 7 and the wedge-shaped surface 701 abut against the slide plate 2 first, and the blank 20 moves to the support plate 3 later. After the blank 20 moves to the support plate 3, the drive mechanism is activated to drive the semi-ring 7 to rotate clockwise. During the clockwise rotation of the semi-ring 7, the wedge-shaped surface 701 abuts against the slide plate 2 and pushes the slide plate 2 to make the slide plate 2 slide elastically. When the slide plate 2 slides elastically, it drives the top of the support plate 3 to rotate toward the power output end of the feeding mechanism. The blank 20 is located on the top of the support plate 3, thereby driving the blank 20 to move toward the power output end of the feeding mechanism so that the end of the blank 20 abuts against the power output end. Since the distance between the end of each blank 20 and the power output end is not uniform when it falls on the support plate 3, but they are all near the power output end and relatively close to it, the distance the blank 20 moves when the top of the support plate 3 rotates to move it can be such that it is not less than the distance between the end of the blank 20 and the power output end. This allows each blank 20 to have its end contact with the power output end before cutting. After contact, the cutting blade is moved to the end of the blank 20 furthest from the power output end, so that the cutting edge of the cutting blade and the end face of the blank 20 are on the same vertical plane. The method of moving the cutting blade is existing technology and will not be described in detail. Then, the feeding mechanism... When the power output end is activated, it pushes the blank 20 on the support plate 3 to move forward. Each time the blank 20 is pushed forward by the power output end, the cutting blade cuts the blank 20 once, until the entire blank 20 is cut. Since the length of each movement of the power output end is fixed, and the end of the blank 20 is in contact with the power output end before the first movement, and the end of the blank 20 is still in contact with the power output end after being cut by the cutting blade, when the feeding mechanism is activated and its power output end pushes several blanks 20 one by one, the distance of the first movement of each blank 20 and the distance of subsequent movements are the same. Therefore, when several blanks 20 are cut into segments, the length of each segment is uniform.

[0040] In this embodiment, by utilizing the cooperation of a transport component capable of clockwise and counterclockwise rotation by a drive mechanism, a slide plate 2 elastically slidably configured, and a support plate 3 that is linked and rotated with the slide plate 2, after the semi-ring 7 rotates counterclockwise to transport the blank 20 onto the support plate 3, the sliding contact between the wedge-shaped surface 701 and the slide plate 2 allows the semi-ring 7 to push the slide plate 2 to slide elastically when it rotates clockwise. Based on the linkage between the slide plate 2 and the support plate 3, the elastic sliding of the slide plate 2 causes the support plate 3 to rotate towards the power output end of the feeding mechanism. Based on the friction between the support plate 3 and the blank 20... When the support plate 3 rotates, it can drive the blank 20 to move towards the power output end, thereby bringing the end of the blank 20 into contact with the power output end. Following this operation, although the distance between the end of each blank 20 and the power output end varies after it is transported onto the support plate 3, the support plate 3 moves the blank 20 so that the ends of several blanks 20 are all moved to contact the power output end. Therefore, when the power output end moves a specific length, the distance each blank 20 moves the first time is the same, and the distances for the second, third, and subsequent moves are also the same, thus ensuring that the length of the several blanks 20 cut into segments is uniform. Therefore, even without using a length detection mechanism, when the power output end of the feeding mechanism moves a fixed length, this invention can still ensure that the distance each blank moves the first time and the distances for subsequent moves are the same during the process of conveying several blanks one by one, thereby ensuring that the length of the several blanks cut into segments is uniform, effectively solving the shortcomings of the prior art.

[0041] In this embodiment, a placement plate 19 is also included for placing and fixing several blanks 20. The outer surface of the semi-ring 7 abuts against the blank 20 located at the outermost end of the placement plate 19 to limit the blank 20. Specifically, the placement plate 19 is fixedly installed on the base plate 1, and the placement plate 19 is inclined downward toward the semi-ring 7. Several blanks 20 are placed side by side on the placement plate 19. The blank 20 located at the outermost end of the placement plate 19 is the blank 20 closest to the semi-ring 7. In the initial state, based on the weight of the blank 20 itself, the blank 20 located at the outermost end of the placement plate 19 can roll onto the plane 702 and abut against the outer peripheral surface of the rotating wheel 6. Under the blocking action of the rotating wheel 6, only one blank 20 moves at a time. On plane 702, when the rotating wheel 6 drives the semi-ring 7 to rotate, plane 702 pushes away the blank 20 above it and the outer surface of the semi-ring 7 abuts against the blank 20 at the very end of the placement plate 19, so that the blank 20 on the placement plate 19 will not move down. Thus, the semi-ring 7 plays the role of limiting the blank 20 on the placement plate 19. When the semi-ring 7 rotates to the reset state, the blank 20 at the very end of the placement plate 19 continues to roll onto plane 702, preparing for the next feeding of blank 20.

[0042] Furthermore, the slide plate 2 is located between the semi-ring 7 and the support plate 3. The top surface of the slide plate 2 slopes downward toward the support plate 3. The top of the support plate 3 has an arc groove 301 that matches the blank 20. During the transport of the blank 20, the blank 20 falls onto the top surface of the arc groove 301 and rolls into the arc groove 301. Specifically, when the semi-ring 7 and the wedge-shaped surface 701 do not abut against the slide plate 2, the top surface of the support plate 3 is parallel to the top surface of the slide plate 2, and the height of the top surface of the support plate 3 is not higher than the height of the top surface of the slide plate 2. This allows the blank 20 to first fall onto the top surface of the slide plate 2 when it is transported to the support plate 3, and then roll along the top surface of the blank 20 into the arc groove 301 at the top of the support plate 3. The arc groove 301 is used to limit the movement of the blank 20.

[0043] In this design, the slide plate 2 acts as an intermediate bridge, producing the following technical effects: Since the blank 20 is not turned before segmented cutting, its surface is covered with a large amount of metal slag. When the blank 20 falls onto the slide plate 2, an impact force is generated, which shakes off the metal slag. After falling onto the slide plate 2, the blank 20 rolls downwards along its top, further dislodging the metal slag. This significantly reduces the amount of metal slag that falls into the arc groove 301 when the blank 20 moves into the groove. If a large amount of metal slag is present in the arc groove 301, the blank 20 will tilt after rolling into it, affecting the uniformity of the cutting length and the perpendicularity of the cut surface. Therefore, by utilizing the intermediate bridge function of the slide plate 2, the amount of metal slag falling into the arc groove 301 can be reduced, making it less likely for the blank 20 to tilt when rolling into the groove, thus improving the uniformity of the cutting length and the perpendicularity of the cut surface.

[0044] Furthermore, during the clockwise rotation of the transport component after the blank 20 is divided for resetting, the wedge-shaped surface 701 pushes the slide plate 2 to slide further elastically, causing the toothed plate 4 to increase the tilt angle of the support plate 3, thereby removing the debris remaining on the inner wall of the arc groove 301. Specifically, in the initial state, the wedge-shaped surface 701 does not abut against the slide plate 2, but the outer side of the semi-ring 7 abuts against the slide plate 2 (e.g., Figure 9 As shown), the thickness of the semi-ring 7 is equal to the maximum thickness of the wedge surface 701 (as shown). Figure 7As shown), when the blank 20 is cut and the components are reset, the rotating wheel 6 drives the semi-ring 7 to rotate clockwise so that the wedge surface 701 gradually stops contacting the slide plate 2 and the outer side of the semi-ring 7 gradually contacts the slide plate 2. During this process, the semi-ring 7 pushes the slide plate 2 to slide further elastically so that the top of the support plate 3 rotates further toward the power output end of the feeding mechanism to increase the inclination of the arc groove 301 until the plane 702 moves to the initial position and the inclination angle of the arc groove 301 reaches the maximum (when the rotating wheel 6 drives the semi-ring 7 to rotate counterclockwise to transport the blank 20 onto the support plate 3, the outer side of the semi-ring 7 and the wedge surface 701 do not contact the slide plate 2, and the support plate 3 rotates to a vertical state so that the blank 20 can smoothly roll along the top of the slide plate 2 onto the support plate 3).

[0045] During the resetting process of the transported parts, the technical effect of further rotating the top of the support plate 3 towards the power output end of the feeding mechanism to increase the inclination of the arc groove 301 is as follows: As the blank 20 is pushed by the power output end, friction is generated between it and the arc groove 301, causing the metal slag adhering to the blank 20 to remain in the arc groove 301. In order to prevent the metal slag from affecting the blank 20, the present invention, through the ingenious rotation design of the support plate 3, not only enables the end of the blank 20 to abut against the power output end before cutting, but also enables the support plate 3 to be further rotated and tilted during the resetting process after the blank 20 is cut, so that the slag remaining on the arc groove 301 can automatically detach from the arc groove 301, thereby further reducing the metal slag remaining in the arc groove 301, and further improving the uniformity of the cutting length of the blank 20 and the perpendicularity of the cutting surface. The rotation design of the support plate 3 produces unexpected technical effects.

[0046] In this embodiment, after the end of the blank 20 abuts against the power output end, the wedge-shaped surface 701 abuts against the slide plate 2, causing the slide plate 2 and the support plate 3 to be limited. Then, the power output end pushes the blank 20 to move axially along the arc groove 301 by a specific length to cut the blank 20 into segments. Specifically, when the power output end pushes the blank 20 to move axially along the arc groove 301, the wedge-shaped surface 701 abuts against the slide plate 2, causing the slide plate 2 to be limited, which in turn limits the support plate 3 so that the top of the support plate 3 cannot rotate in the direction of travel of the blank 20, thereby allowing the blank 20 to be stably pushed by the power output end.

[0047] In this design, a guide rod 21 is slidably inserted into the slide plate 2. The guide rod 21 is fixedly mounted on the base plate 1 via a third fixing plate 15. A compression spring 22 is sleeved on the guide rod 21. One end of the compression spring 22 elastically abuts against the third fixing plate 15, and the other end elastically abuts against the slide plate 2. Specifically, there are two third fixing plates 15 arranged opposite each other. The guide rod 21 is fixedly installed between the two third fixing plates 15. There are at least two guide rods 21 to prevent the slide plate 2 from rotating. The compression spring 22 is sleeved on one of the guide rods 21. When neither the semi-ring 7 nor the wedge-shaped surface 701 abuts against the slide plate 2, the side of the slide plate 2 away from the compression spring 22 abuts against the third fixing plate 15 to limit the movement of the slide plate 2 (e.g., ...). Figure 3 (As shown). The elastic sliding of the slide plate 2 is achieved under the elastic force of the compression spring 22. When the semi-ring 7 pushes the slide plate 2 to slide elastically, it continuously drives the slide plate 2 to be compressed. When the wedge surface 701 and the semi-ring 7 do not abut against the slide plate 2, the slide plate 2 is driven to return to its original position under the elastic force of the compression spring 22.

[0048] In this embodiment, a protrusion 13 is fixedly installed on the side of the slide plate 2 away from the compression spring 22, which slides against the wedge-shaped surface 701. The slide plate 2 abuts against the wedge-shaped surface 701 through the abutment of the protrusion 13. In this embodiment, both the semi-ring 7 and the wedge-shaped surface 701 abut against the slide plate 2 through the abutment of the protrusion 13. Similarly, when the semi-ring 7 and the wedge-shaped surface 701 do not abut against the protrusion 13, they do not abut against the slide plate 2.

[0049] In this embodiment, a toothed plate 4 is fixedly connected to the slide plate 2, and a gear 5 that meshes with the toothed plate 4 is fixedly installed on the support plate 3. The toothed plate 4 is slidably connected to the second fixed plate 12 that is fixedly connected to the base plate 1. When the wedge surface 701 pushes the slide plate 2 to slide elastically, the compression spring 22 is compressed and drives the toothed plate 4 to slide synchronously. The sliding of the toothed plate 4 drives the support plate 3 to rotate through the gear 5 so that the blank 20 moves toward the power output end. Specifically, a fifth fixing plate 25 is fixedly installed on the support plate 3, and a gear 5 is fixedly installed on the fifth fixing plate 25. The fifth fixing plate 25 is rotatably mounted on a second fixing plate 12 that is fixedly connected to the base plate 1. There are two second fixing plates 12, and the support plate 3 is located between the two second fixing plates 12. A side plate 401 is integrally provided on the toothed plate 4. A slot for the side plate 401 to slide into is provided on the second fixing plate 12. When the slide plate 2 slides, it drives the toothed plate 4 to slide synchronously. When the toothed plate 4 slides, it drives the gear 5 to rotate. The rotation of the gear 5 drives the support plate 3 to rotate through the fifth fixing plate 25. The linkage between the slide plate 2 and the support plate 3 is realized through the meshing of the toothed plate 4 and the gear 5.

[0050] In this embodiment, the feeding mechanism also includes a second motor 18 and a slide rail 8 fixedly installed on the base plate 1. The slide rail 8 is fixedly installed on the base plate 11. A push plate 9 for pushing the blank 20 is slidably arranged on the slide rail 8. The push plate 9 is the power output end. A lead screw 10 is coaxially connected to the output shaft of the slide rail 8. The push plate 9 is threaded onto the lead screw 10. The second motor 18 drives the lead screw 10 to rotate so as to drive the push plate 9 to slide along the slide rail 8 to push the blank 20. Specifically, the push plate 9 includes an integrally formed upper sliding plate 901 and a lower pushing plate 902. The lower pushing plate 902 is polygonal, and the shape of the inner cavity of the slide rail 8 is adapted to the lower pushing plate 902. The lower pushing plate 902 is slidably disposed in the inner cavity of the slide rail 8. The lead screw 10 is threaded through the lower pushing plate 902. The second motor 18 is a servo motor or a stepper motor, which can rotate in both the forward and reverse directions. When the second motor 18 drives the lead screw 10 to rotate, it can drive the lower pushing plate 902 to slide left and right along the inner cavity of the slide rail 8. The upper sliding plate 901 is located outside the slide rail 8 and abuts against the end of the blank 20, and is used to push the blank 20 to move. When the lower pushing plate 902 slides along the inner cavity of the slide rail 8, it can drive the upper sliding plate 901 to push the blank 20 towards the direction of the cutting blade.

[0051] In this embodiment, multiple rotating wheels 6, half-rings 7, and sliding plates 2 are arranged in a one-to-one correspondence along the axial direction of the blank 20. Multiple rotating wheels 6 are coaxially fixedly connected by a rotating rod 23, which is rotatably connected to a fourth fixed plate 24 fixedly mounted on the base plate 1. One end of the rotating rod 23 is connected to the output shaft of the drive mechanism. Starting the first motor 17 drives the rotating rod 23 to rotate, thereby causing the multiple rotating wheels 6 and multiple half-rings 7 to rotate synchronously. The arrangement of multiple rotating wheels 6 and multiple half-rings 7 increases the force-bearing points of the blank 20, making it easier and more stable for the blank 20 to be transported by the half-rings 7. Simultaneously, multiple support plates 3 are also present, supporting the blank 20 simultaneously to improve its stability. Toothed plates 4 mesh with gears 5 on multiple support plates 3, causing the multiple support plates 3 to rotate synchronously.

[0052] In this structure, multiple slide plates 2 are fixedly connected in pairs by a second connecting plate 16. There are two toothed plates 4, which are fixedly connected in pairs by multiple first connecting plates 14. One toothed plate 4 is fixedly connected to the slide plate 2, and the other toothed plate 4 is slidably connected to the second fixed plate 12. Each support plate 3 is connected to two gears 5 that mesh with the two toothed plates 4 in a one-to-one correspondence. The support plate 3 is located between the two gears 5. The above structural design can improve the uniformity of force on the support plate 3 to a certain extent.

[0053] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A blank feeding mechanism for bolt processing, comprising a feeding mechanism and a transport component for moving blanks (20) one by one onto the feeding mechanism and being driven to rotate by a drive mechanism, wherein the drive mechanism drives the transport component to rotate clockwise and counterclockwise, characterized in that: The transport component includes a fixedly connected roller (6) and a half-ring (7). One end of the half-ring (7) is a wedge-shaped surface (701) and the other end is a flat surface (702). In the initial state, the blank (20) rolls onto the flat surface (702) under the action of gravity and is blocked and limited by the roller (6). The feeding mechanism includes a sliding plate (2) that is elastically slidably disposed, a support plate (3) that is rotatably disposed and linked with the sliding plate (2), and a power output end. The sliding plate (2) abuts against the wedge surface (701). During the process of the conveying component rotating counterclockwise to drive the blank (20) located on the plane (702) to move onto the support plate (3), the wedge surface (701) and the sliding plate (2) gradually move apart. After that, the conveying component rotates clockwise to drive the wedge surface (701) to push the sliding plate (2) to rotate the support plate (3) in an elastic sliding manner, causing the end of the blank (20) to abut against the power output end. A guide rod (21) is slidably inserted into the slide plate (2). The guide rod (21) is fixedly installed on the base plate (1) by a third fixing plate (15). A compression spring (22) is sleeved on the guide rod (21). One end of the compression spring (22) elastically abuts against the third fixing plate (15), and the other end elastically abuts against the slide plate (2). A protrusion (13) is fixedly installed on the side of the slide plate (2) away from the compression spring (22) to slide against the wedge surface (701). The slide plate (2) and the wedge surface (701) are connected by the contact between the protrusion (13) and the wedge surface (701). A toothed plate (4) is fixedly connected to the slide plate (2), and a gear (5) that meshes with the toothed plate (4) is fixedly installed on the support plate (3). The toothed plate (4) is slidably connected to the second fixed plate (12) that is fixedly connected to the base plate (1). When the wedge surface (701) pushes the slide plate (2) to slide elastically, the compression spring (22) is compressed and drives the toothed plate (4) to slide synchronously. The sliding of the toothed plate (4) drives the support plate (3) to rotate through the gear (5) so that the blank (20) moves toward the power output end.

2. The bolt processing blank feeding mechanism according to claim 1, characterized in that: It also includes a placement plate (19) for placing and fixing several blanks (20), the outer surface of the semi-ring (7) abutting against the blank (20) at the far end of the placement plate (19) to limit the blank (20).

3. The bolt processing blank feeding mechanism according to claim 1, characterized in that: The slide plate (2) is located between the semi-ring (7) and the support plate (3). The top surface of the slide plate (2) is inclined downward toward the support plate (3). The top of the support plate (3) is provided with an arc groove (301) that is compatible with the blank (20). During the process of the transport component transporting the blank (20), the blank (20) falls on the top surface of the arc groove (301) and rolls into the arc groove (301).

4. The bolt processing blank feeding mechanism according to claim 3, characterized in that: After the end of the blank (20) comes into contact with the power output end, the contact between the wedge surface (701) and the slide plate (2) limits the slide plate (2) and the support plate (3). After that, the power output end pushes the blank (20) to move a certain length along the arc groove (301) to cut the blank (20) into segments.

5. The bolt processing blank feeding mechanism according to claim 1, characterized in that: The feeding mechanism also includes a second motor (18) and a slide rail (8) fixedly installed on the base plate (1). A push plate (9) for pushing the blank (20) is slidably arranged on the slide rail (8). The push plate (9) is the power output end. A lead screw (10) is coaxially connected to the output shaft of the slide rail (8). The push plate (9) is threaded onto the lead screw (10). The second motor (18) drives the lead screw (10) to rotate so as to drive the push plate (9) to slide along the slide rail (8) to push the blank (20).

6. The bolt processing blank feeding mechanism according to claim 3, characterized in that: After the blank (20) is divided, the transport component rotates clockwise to reset, driving the wedge surface (701) to push the slide plate (2) to slide further elastically so that the toothed plate (4) drives the support plate (3) to increase the tilt angle so that the debris remaining on the inner wall of the arc groove (301) can be removed.

7. The bolt processing blank feeding mechanism according to claim 1, characterized in that: The number of the rotating wheel (6), the semi-ring (7), and the slide plate (2) are all multiple and are arranged in a corresponding array along the axial direction of the blank (20). The multiple rotating wheels (6) are coaxially fixedly connected by a rotating rod (23). The rotating rod (23) is rotatably connected to the fourth fixed plate (24) fixedly installed on the base plate (1). One end of the rotating rod (23) is connected to the output shaft of the drive mechanism.

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