Automatic stamping machine

Abstract

The invention relates to an automatic stamping machine. The stamping machine comprises a rack, an upper stamping assembly, a lower stamping assembly, a main driving mechanism and a rocker linkage mechanism, wherein the upper stamping assembly and the lower stamping assembly are vertically arranged in a spaced mode. The main driving mechanism is connected with and drives the lower impressing assembly to do reciprocating linear movement; the two ends of the rocker are connected with the upper coining assembly and the lower coining assembly respectively. When the main driving mechanism drives the lower impressing assembly to move in the first direction, the rocker drives the upper impressing assembly to move in the opposite second direction, and therefore a workpiece located between the upper impressing assembly and the lower impressing assembly is driven to roll and be impressed. The device has the advantages of being compact in structure and high in synchronism. Mechanical differential linkage is achieved through the rocker, strict synchronous reverse movement of the upper die plate and the lower die plate can be guaranteed only through a single power source, stress of a workpiece is effectively balanced, and the phenomena of slipping and disordered teeth are eliminated. And in cooperation with the special sliding groove decoupling design, movement jamming is prevented, and the machining precision and the equipment stability are remarkably improved.

Description

Technical Field

[0001] This application relates to the field of industrial automation, and in particular to an automated embossing machine. Background Technology

[0002] In the field of precision metal machining, embossing machines or thread rolling machines are key equipment used to process threads, patterns, or specific tooth profiles on the surface of cylindrical workpieces. Their basic working principle is to use two die plates with specific textures, apply radial pressure and drive the workpiece to roll, and use the plastic deformation characteristics of metal materials to extrude the corresponding textures on the workpiece surface.

[0003] Existing embossing equipment typically employs a single-action structure with one fixed mold plate and another reciprocating mold plate. While this single-sided drive processing method is simple in structure, it has significant limitations in practical applications. Because only one side applies tangential driving force, the force state of the workpiece is often asymmetrical when rolling between the two mold plates, easily leading to slippage or tilting of the workpiece in the initial rolling stage, thus affecting the uniformity of the texture depth and the accuracy of the tooth profile. Furthermore, in this processing method, the geometric center of the workpiece will undergo a large range of linear displacement as the moving mold plate moves. This requires the equipment to have a long stroke space to accommodate the workpiece's movement trajectory, resulting in a large overall size of the equipment and hindering the compact layout of subsequent automated loading and unloading mechanisms.

[0004] To improve stress distribution, existing technologies have developed double-action equipment that processes materials by simultaneously moving two mold plates in opposite directions. However, these devices typically use two independent power sources to drive the upper and lower components separately, or employ complex multi-stage gearboxes to distribute power. Multi-power source drive schemes require high synchronization of the control system; even a slight deviation in the speed or start-up time of the two motors can cause misalignment of the relative positions of the upper and lower mold plates, resulting in irregular teeth or ghosting on the workpiece surface. On the other hand, complex gear transmission chains not only have higher manufacturing costs, but also, after long-term high-load operation, the accumulated gear backlash directly reduces the reverse synchronization accuracy of the upper and lower mold plates, increasing the difficulty of maintenance and the failure rate of the equipment.

[0005] Furthermore, in mechanical solutions where a single power source drives bidirectional motion, existing linkage mechanisms are often not simple enough. While some devices achieve bidirectional movement, they lack an effective linkage mechanism to ensure strict consistency in the displacement of the upper and lower mold plates. When the main drive mechanism pushes one component, the other component often requires transmission through a complex reversing mechanism. This not only increases energy loss but also makes the mechanical structure of the equipment loose and lacking in rigidity. When machining workpieces made of high-hardness materials, this loose mechanical fit easily generates vibration, thus affecting the surface quality of the final product. Summary of the Invention

[0006] In order to simplify the transmission structure and ensure motion synchronization by using mechanical linkage logic, this application provides an automated embossing machine.

[0007] This application provides an automated embossing machine, which adopts the following technical solution: An automated embossing machine includes: frame; An upper imprinting assembly includes an upper slider and an upper imprinting toothed rack fixed to the lower side of the upper slider. The upper slider is slidably mounted on the frame in a horizontal direction. The lower imprint assembly includes a lower slider and a lower imprinting toothed rack fixed to the upper side of the lower slider. The lower slider is slidably disposed on the frame in a horizontal direction. The lower imprinting toothed rack and the upper imprinting toothed rack are arranged opposite each other at intervals to form a rolling channel. The height of the rolling channel is adapted to the diameter of the workpiece. The main drive mechanism is connected to the lower imprint assembly and is used to drive the lower imprint assembly to perform reciprocating linear movement; The rocker linkage mechanism includes a rocker pivotally mounted on the frame; the upper end of the rocker is movably connected to the upper imprinting assembly, and the lower end of the rocker is movably connected to the lower imprinting assembly; when the main drive mechanism drives the lower imprinting assembly to move in a horizontal first direction, the lower imprinting assembly drives the upper imprinting assembly to move in a second direction opposite to the first direction through the rocker, thereby causing the workpiece located in the rolling channel to roll and imprint.

[0008] Optionally, the main drive mechanism includes a power source, a drive screw, a threaded transmission block, an axial slider, and a transmission link; the power source drives the drive screw to rotate; the threaded transmission block is sleeved on the drive screw and threadedly engaged with the drive screw, and the threaded transmission block is configured to be circumferentially fixed, so that when the drive screw rotates, the threaded transmission block moves along the axial direction of the drive screw; one end of the transmission link is rotatably connected to the threaded transmission block, and the other end is movably connected to the lower slider; when the threaded transmission block moves axially, it pushes the lower slider to move along the first direction through the transmission link; the end of the drive screw away from the power source is a smooth shaft section, the axial slider passes through the smooth shaft section and is fixed circumferentially to the drive screw, and is slidably connected to the drive screw axially.

[0009] Optionally, the middle part of the rocker arm is hinged to the frame via a rotation center shaft; the upper part of the rocker arm is provided with a first upper sliding groove, and the upper slider is provided with an upper central rotating shaft extending into the first upper sliding groove, the upper central rotating shaft being slidably connected to the first upper sliding groove; the lower part of the rocker arm is provided with a first lower sliding groove, and the lower slider is provided with a lower central rotating shaft extending into the first lower sliding groove, the lower central rotating shaft being slidably connected to the first lower sliding groove; the first upper sliding groove and the first lower sliding groove are arranged along the length direction of the rocker arm; the upper imprinting assembly and the lower imprinting assembly achieve synchronous reverse movement through the cooperation of the rocker arm and the sliding groove.

[0010] Optionally, the lower part of the transmission link is provided with a second sliding groove, which is inclined; the lower central rotating shaft extends into the second sliding groove and is slidably connected to the second sliding groove; when the transmission link is subjected to force and swings, the second sliding groove accommodates the vertical displacement component of the transmission link to prevent jamming, and pushes the lower central rotating shaft to move along the first direction through the groove wall of the second sliding groove.

[0011] Optionally, the drive screw is further provided with a positioning block, which is located on the side of the drive screw away from the power source relative to the threaded transmission block. The positioning block is fixed to the drive screw in the axial direction and is circumferentially connected by a bearing. The positioning block is surrounded by a plurality of guide rods in the circumferential direction. The guide rods are arranged parallel to the drive screw and pass through the axial slider and are slidably connected to the axial slider.

[0012] Optionally, the axial slider is provided with a second upper groove on the side facing the upper imprinting assembly. The second upper groove is inclined. The upper slider is provided with a sliding shaft, which extends into the second upper groove and is slidably connected to the second upper groove.

[0013] Optionally, it also includes an automatic feeding mechanism, the transmission path of which passes through the inlet side of the rolling channel; The automatic feeding mechanism includes a feeding track, a feeding motor, a screw drive assembly, a slide table, a push rod, and a pushing mechanism. The feeding motor drives the screw drive assembly to move the slide table. The push rod passes through the frame and is slidably connected to the frame in a first direction. The pushing mechanism includes a triangular slide groove on the slide table and a telescopic slide column in the triangular slide groove. The upper part of the telescopic slide column is connected to the push rod, and the lower part is elastically connected to the upper part by a spring. The lower part of the telescopic slide column is slidably connected to the triangular slide groove. The triangular slide groove is divided into a translation section along the sliding direction of the slide table and a first inclined section and a second inclined section connecting the translation section. The first inclined section is connected to the end of the translation section away from the feeding motor. The position of the first inclined section connected to the translation section forms a height difference with respect to the translation section and is at a lower position. The position of the second inclined section connected to the translation section forms a height difference with respect to the translation section and is at a higher position. The first inclined section and the second inclined section are smoothly connected. The stroke of the push rod passes over the feeding track.

[0014] Optionally, the end of the feeding track is provided with an inclined surface, and the workpiece rolls down the inclined surface under the action of gravity to the position to be pushed in in front of the push rod; the feeding track is provided with protruding positioning teeth at intervals, and the positioning teeth match the width of the groove to be processed in the workpiece.

[0015] Optionally, it also includes an automatic unloading mechanism, which includes an unloading track and a collection trough. The unloading track passes through the rolling channel, and the unloading track is provided with positioning grooves at intervals. The positioning grooves match the thickness of the workpiece, and the collection trough is located at the end of the unloading track.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. This application achieves synchronous and reverse movement of the upper and lower imprinting components through a rocker linkage mechanism. Only a single driving force needs to be applied to the lower imprinting component to precisely drive the upper imprinting component in the opposite direction via the lever action of the rocker. This mechanical linkage structure ensures that the displacement and movement speed of the upper and lower mold plates are strictly consistent, effectively balancing the forces acting on the workpiece during the roll forming process. It eliminates quality defects such as workpiece slippage, uneven teeth, or inconsistent texture depth caused by asynchronous dual power sources, significantly improving processing accuracy and yield.

[0017] 2. This application employs an inclined groove fit structure at the connection between the transmission connecting rod and the lower slider, and at the connection between the axial slider and the upper slider. This design effectively accommodates the vertical displacement component generated by the connecting rod and rocker arm during swinging, achieving motion decoupling and efficiently converting the driving force into a horizontal thrust along the rolling channel direction. This structure avoids the mechanical deadlock or jamming that may occur during rigid connections, reduces wear between moving parts, and ensures the smoothness and service life of the equipment under high-frequency reciprocating motion.

[0018] 3. The main drive mechanism of this application adopts a drive screw in conjunction with a circumferentially fixed threaded transmission block to convert rotational motion into stable linear driving force, and uses an axial slider passing through the smooth section of the screw for auxiliary guidance. This layout is not only compact and can provide the large load thrust required for the embossing process, but also enhances the rigidity of the transmission chain and the linear guidance accuracy through the axial slider, reduces vibration during processing, and further ensures the forming quality of the surface texture of the workpiece. Attached Figure Description

[0019] Figure 1 A schematic diagram of an automated embossing machine according to an embodiment of the present invention is shown. Figure 1 .

[0020] Figure 2 It is illustrated Figure 1 Enlarged view of point A in the middle.

[0021] Figure 3 A schematic diagram of an automated embossing machine according to an embodiment of the present invention is shown. Figure 2 .

[0022] Figure 4 It is illustrated Figure 3 Enlarged view of point B in the middle.

[0023] Explanation of reference numerals in the attached figures: 1. Frame; 2. Workpiece; 3. Rolling channel; 10. Upper slider; 11. Upper impression rack; 12. Upper central rotating shaft; 13. Sliding shaft; 21. Lower slider; 22. Lower impression rack; 23. Lower central rotating shaft; 30. Power source; 31. Drive screw; 32. Threaded transmission block; 33. Axial slider; 331. Second upper sliding groove; 34. Transmission connecting rod; 341. Second lower sliding groove; 35. Positioning block; 36. Guide rod; 40. Rocker arm; 41. Rotation center shaft; 42. First upper sliding groove; 43. First lower sliding groove; 50. Feeding motor; 51. Screw transmission assembly; 52. Slide table; 521. Triangular sliding groove; 53. Push rod; 54. Telescopic sliding column; 55. Feeding track; 551. Positioning tooth; 56. Inclined surface; 60. Discharge track; 601. Positioning groove; 61. Collection groove. Detailed Implementation

[0024] The present application will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the application and are not intended to limit the scope of the application.

[0025] In the following description, numerous specific details are set forth for purposes of explanation in order to provide a thorough understanding of the inventive concept. As part of this specification, some of the accompanying drawings of this disclosure are block diagrams illustrating structures and devices to avoid complicating the disclosed principles. For clarity, not all features of the actual embodiment need to be described. Furthermore, the language used in this disclosure has been primarily chosen for readability and instructional purposes and may not have been chosen to define or limit the subject matter of the invention, thus requiring the necessary claims to determine such inventive subject matter. References to “an embodiment” or “an embodiment” in this disclosure mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in at least one embodiment, and multiple references to “an embodiment” or “an embodiment” should not be construed as necessarily referring to the same embodiment.

[0026] Unless explicitly defined, the terms “a,” “an,” and “the” are not intended to refer to a singular entity, but rather to include a general category whose specific examples can be used for illustration. Therefore, the use of the terms “a” or “an” can mean any number of at least one, including “a,” “one or more,” “at least one,” and “one or more.” The term “or” means any of the options and any combination of the options, including all options unless explicitly indicated that the options are mutually exclusive. The phrase “at least one of” when combined with a list of items refers to a single item in the list or any combination of items in the list. The phrase does not require all items listed unless explicitly defined as such.

[0027] Reference Figure 1-4 This application provides an automated printing machine, which mainly consists of a frame 1, an upper printing assembly, a lower printing assembly, a main drive mechanism, and a rocker arm 40 linkage mechanism.

[0028] The frame 1 serves as the supporting foundation for the entire equipment, and its specific structural form can be selected according to the actual processing scenario. In this embodiment, the frame 1 can adopt a high-rigidity gantry frame structure to provide stable support; in another embodiment, the frame 1 can also adopt a C-shaped structure to facilitate the lateral entry and exit of the workpiece 2. The frame 1 can be made of cast iron to absorb vibration, or welded steel plate to reduce costs. To ensure the equipment is placed horizontally, the bottom of the frame 1 can also be equipped with height-adjustable anchor bolts or vibration-damping pads.

[0029] The upper imprinting assembly is mounted on the frame 1 and includes an upper slider 10 arranged along a first direction and an upper imprinting rack 11 fixed to the lower side of the upper slider 10. The upper slider 10 and the frame 1 move horizontally through a sliding engagement. Here, the first direction is a reference horizontal direction. Specifically, the frame 1 may be provided with a horizontally extending linear guide rail, and the bottom of the upper slider 10 may have a slider seat adapted to the linear guide rail; alternatively, the frame 1 may have a dovetail guide rail groove, and the upper slider 10 may have a dovetail protrusion that mates with it to ensure the straightness of movement. The upper imprinting rack 11 is detachably fixed to the bottom of the upper slider 10 by bolts, or it can be locked by a pressure plate or wedge block to facilitate replacement of racks with different textures after wear.

[0030] The lower impression assembly is also mounted on the frame 1, including a lower slider 21 and a lower impression rack 22 fixed to the upper side of the lower slider 21. The sliding connection between the lower slider 21 and the frame 1 is similar to that of the upper slider 10, and can use a linear guide or dovetail groove structure of the same specifications as the upper slider 10. The lower impression rack 22 and the upper impression rack 11 are arranged vertically at an interval, thereby forming a rolling channel 3 between them. The height of the rolling channel 3 (i.e., the distance between the upper and lower racks) is configured to match the diameter of the processing area of ​​the workpiece 2. In practical applications, in order to adapt to workpieces 2 of different diameters, the mounting base of the upper impression rack 11 or the lower impression rack 22 can be designed as a height-adjustable structure, for example, by adding shims or adjusting screws to finely adjust the vertical position of the rack.

[0031] The main drive mechanism is connected to the lower embossing assembly and is used to drive the lower embossing assembly to perform reciprocating linear movement. Specifically, the main drive mechanism includes a power source 30, a drive screw 31, a threaded transmission block 32, an axial slider 33, and a transmission connecting rod 34.

[0032] The power source 30 is used to drive the drive screw 31 to rotate. In this embodiment, the power source 30 can be a servo motor, which is directly connected to the drive screw 31 through a coupling to achieve high-precision speed and position control; in another embodiment, the power source 30 can also be a stepper motor with a reducer to provide greater torque; in a simplified version, the power source 30 can also be a manually operated hand crank.

[0033] The threaded drive block 32 is sleeved on the drive screw 31 and forms a threaded engagement with the drive screw 31 (e.g., a trapezoidal thread engagement or a ball screw engagement). The threaded drive block 32 is configured to be circumferentially fixed. Specifically, this can be achieved by providing an anti-rotation guide rod 36 on the frame 1 that passes through the threaded drive block 32, or by using a groove at the bottom of the threaded drive block 32 in conjunction with a guide rail on the frame 1 to limit its rotation, so that when the drive screw 31 rotates, the threaded drive block 32 will move along the axial direction of the drive screw 31. In fact, the transmission link 34 can also be used to limit the rotation of the threaded drive block 32.

[0034] One end of the transmission link 34 is rotatably connected to the threaded transmission block 32 in a vertical plane, and the other end is movably connected to the lower slider 21. This rotatable connection can be a pin connection or a spherical bearing connection to accommodate the angular changes that occur during the movement of the link.

[0035] The end of the drive screw 31 furthest from the power source 30 is designed as a smooth shaft section. An axial slider 33 passes through this smooth shaft section and is fixed circumferentially to the drive screw 31 (e.g., via the aforementioned anti-rotation guide rod 36 or guide rail), but maintains a sliding connection with the drive screw 31 axially. A self-lubricating bushing or linear bearing can be pressed into the inner hole of the axial slider 33 to reduce friction.

[0036] A rocker linkage mechanism is used to coordinate the movement of the upper and lower components. This mechanism includes a rocker arm 40 pivotally mounted on the frame 1. The middle part of the rocker arm 40 is hinged to the frame 1 via a rotation center shaft 41, forming a lever fulcrum. The rotation center shaft 41 can be supported on the frame 1 by a deep groove ball bearing or a tapered roller bearing to reduce swing resistance.

[0037] The upper part of the rocker arm 40 has a first upper sliding groove 42, which extends along the length of the rocker arm 40 and can be shaped as an oblong through hole or a blind groove. An upper central rotating shaft 12 is provided on the side of the upper slider 10, and this upper central rotating shaft 12 extends into the first upper sliding groove 42. To reduce wear, the portion of the upper central rotating shaft 12 extending into the groove can be fitted with a slider or roller, forming a rolling or sliding engagement with the inner wall of the first upper sliding groove 42.

[0038] Similarly, a first sliding groove 43 is provided at the lower part of the rocker arm 40. A lower central pivot 23 is provided on the side of the lower slider 21, which extends into and is connected to the first sliding groove 43. When the main drive mechanism drives the lower imprinting assembly to move in the first direction, the lower central pivot 23 pushes the lower end of the rocker arm 40, causing the rocker arm 40 to swing around the central fulcrum. Utilizing the lever principle, the upper end of the rocker arm 40 drives the upper imprinting assembly to move in the opposite second direction through the upper central pivot 12, achieving synchronous differential movement.

[0039] The lower part of the transmission link 34 is provided with a second sliding groove 341, which is inclined (for example, at an angle of 30 to 60 degrees relative to the horizontal plane). The aforementioned lower central rotating shaft 23 extends into the second sliding groove 341 and is slidably connected to it. When the transmission link 34 is subjected to force and swings, the space of the second sliding groove 341 is used to accommodate the displacement component generated by the transmission link 34 in the vertical direction, thereby achieving motion decoupling and preventing the mechanism from jamming.

[0040] A positioning block 35 is also provided on the drive screw 31. The positioning block 35 is located on the side of the drive screw 31 that is away from the power source 30 relative to the threaded transmission block 32. The positioning block 35 is fixed to the screw in the axial direction by a snap ring or a stepped surface, but is connected in the circumferential direction by a bearing, that is, the positioning block 35 does not rotate when the screw rotates. Several (e.g., two, three, or four) guide rods 36 are arranged around the positioning block 35 in the circumferential direction. These guide rods 36 are arranged parallel to the drive screw 31. The guide rods 36 pass through the axial slider 33 and are slidably connected to the axial slider 33, thereby restricting the circumferential rotation of the axial slider 33 and ensuring the rigidity of the transmission system.

[0041] Furthermore, the axial slider 33 has a second upper groove 331 on the side facing the upper imprinting assembly, and the second upper groove 331 is inclined. The upper slider 10 is provided with a sliding shaft 13, which extends into the second upper groove 331 and is slidably connected to the second upper groove 331.

[0042] The automated printing press also includes an automatic feeding mechanism. The automatic feeding mechanism includes a feeding conveyor 55, a feeding motor 50, a lead screw drive assembly 51, a slide table 52, a push rod 53, and a pushing mechanism. The feeding motor 50 drives the lead screw drive assembly 51, which in turn moves the slide table 52. The push rod 53 passes through the frame 1 (e.g., via a linear bearing or guide sleeve on the frame 1) and is slidably connected to the frame 1 in a first direction.

[0043] The pushing mechanism includes a triangular slide groove 521 formed on the slide table 52 and a telescopic slide column 54 disposed within the triangular slide groove 521. The upper part of the telescopic slide column 54 is fixedly connected to the push rod 53, and the lower part is elastically connected to the upper part through a spring, so that the length of the slide column can be changed when force is applied. The lower end of the telescopic slide column 54 (such as a ball or slider) is placed in the triangular slide groove 521. The trajectory of the triangular slide groove 521 is designed as a closed loop structure. The triangular slide groove is divided into a translation segment along the sliding direction of the slide table, and a first inclined segment and a second inclined segment connecting the translation segment. The first inclined segment is connected to the end of the translation segment away from the feeding motor. The position of the first inclined segment connected to the translation segment forms a height difference with respect to the translation segment and is at a lower position. The position of the second inclined segment connected to the translation segment forms a height difference with respect to the translation segment and is at a higher position. The first inclined segment and the second inclined segment are smoothly connected. The reciprocating motion of the slide table 52 drives the push rod 53 to complete the action cycle of "pushing in workpiece 2 - lifting and retracting - resetting", avoiding interference of the push rod 53 with the next workpiece 2 when it retracts.

[0044] The end of the feeding track 55 is provided with an inclined surface 56. The workpiece 2 (such as a cylindrical metal bar) can roll down along the inclined surface 56 under the action of gravity to the push position in front of the push rod 53. The feeding track 55 is provided with protruding positioning teeth 551 at intervals. The shape of the positioning teeth 551 can be V-shaped or U-shaped, adapted to the size of the workpiece 2, and used to separate and transport the workpiece 2 one by one, and prevent the workpiece 2 from tipping over and sliding, so as to facilitate the alignment of the workpiece 2 with the rolling channel 3.

[0045] In addition, the equipment also includes an automatic unloading mechanism. The automatic unloading mechanism includes an unloading track 60 and a collection trough 61. The unloading track 60 is arranged below or to the side of the rolling channel 3 to receive the processed workpiece 2. Positioning grooves 601 are spaced apart on the unloading track 60, and the positioning grooves 601 match the thickness of the workpiece to hold the workpiece 2 in place and prevent it from tipping over. The collection trough 61 is located at the end of the unloading track 60 and is used to collect finished products.

[0046] This embodiment also provides a control method based on the above-mentioned automated embossing machine. This method coordinates the actions of the main drive mechanism, the automatic feeding mechanism, and the automatic unloading mechanism through preset timing logic to achieve continuous processing of workpieces. The control method mainly includes the following steps S1-S5.

[0047] S1. Initial state reset and material loading preparation.

[0048] S11. System Self-Check and Reset: The control system first checks whether each mechanism is in its initial position. The threaded transmission block 32 of the main drive mechanism resets to its extreme position away from the power source 30, so that the upper imprint rack 11 and the lower imprint rack 22 are in a completely offset or initially aligned state, and the rolling channel 3 is in its maximum opening or ready-to-process state. The slide table 52 of the automatic feeding mechanism resets to the side away from the rolling channel 3 (i.e., the push rod 53 is in the retracted state).

[0049] S12. Workpiece positioning detection: Start the feeding conveyor 55 to move the workpiece 2 towards the inclined plane 56. When the foremost workpiece 2 rolls down the inclined plane 56 under the action of gravity to the position to be pushed in front of the push rod 53 (pre-feeding position), the photoelectric sensor or position switch detects the workpiece 2's positioning signal, and the feeding conveyor 55 pauses or maintains slow operation to maintain the queuing of subsequent workpieces.

[0050] S2. Automatic feeding action.

[0051] S21. Push Rod Engagement and Pushing: Upon receiving the loading command, the loading motor 50 drives the lead screw transmission assembly 51 to rotate, causing the slide table 52 to move towards the loading motor. At this time, the telescopic slide column 54 is located within the translation section of the triangular slide groove 521 and gradually rises until it falls into the first inclined section. The telescopic slide column 54 extends into the first inclined section to prevent it from retracting back to the translation section. The push rod 53 remains at a low operating height, with its front end aligned with or abutting the workpiece 2 to be pushed into position.

[0052] S22. Workpiece fed into the rolling channel: The slide table 52 begins to move in the opposite direction, that is, away from the feeding motor 50. The telescopic slide column 54 moves along the first inclined section, and under the push of the groove wall of the first inclined section, it drives the push rod 53 to move towards the workpiece. The push rod 53 pushes the workpiece 2 horizontally into the entrance of the rolling channel 3 between the upper imprinting rack 11 and the lower imprinting rack 22. During this process, the workpiece 2 is pushed to the initial meshing point of the two racks.

[0053] S23. Push rod lifting and avoidance retraction: After the workpiece 2 is pushed to the rolling channel 3, the feeding motor 50 continues to rotate, causing the slide to continue to move away from the feeding motor 50. At this time, the telescopic slide column 54 enters the second tilt section from the first tilt section, and the push rod 53 moves away from the workpiece until the telescopic slide column 54 falls into the translation section.

[0054] During the retraction of push rod 53, push rod 53 retracts in front of the next workpiece to be processed that is already in place on the loading track 55 to avoid interference and collision.

[0055] S24. Cyclic Reset: The slide table 52 begins to move forward, that is, towards the feeding motor 50, in preparation for the next step S21.

[0056] S3. Bidirectional differential rolling process.

[0057] S31. Imprinting Start: After step S22 is completed and the workpiece enters the engagement point, the main drive mechanism is started.

[0058] S32. Differential linkage: The power source 30 drives the drive screw 31 to rotate, causing the lower imprinting component to move away from the push rod, and through the rocker linkage mechanism, it drives the upper imprinting component to move towards the push rod.

[0059] S33. Rolling forming: The upper and lower embossing racks 11 and 22 move towards each other, clamping the workpiece 2 and generating pure rolling in the rolling channel 3 to complete the embossing.

[0060] S4. Automatic feeding.

[0061] S41. Discharge: The workpiece 2 rolls out of the rack meshing area, falls onto the unloading track 60 and is conveyed to the collection tank 61.

[0062] S5. Loop judgment and reset.

[0063] S51. Main unit reset: The power source 30 of the main drive mechanism reverses, driving the threaded transmission block 32 to move in the opposite direction, and causing the upper and lower imprinting components to return to the initial alignment state described in S11.

[0064] S52. Continuous processing: The control system determines whether there is material on the feeding track 55. If there is material, the system jumps to step S21 and repeats the above process.

[0065] The control method based on the above-mentioned automated embossing machine has the following advantages: 1. High transmission efficiency and long motor life: In steps S22 to S23, the feeding motor always maintains the same direction of rotation (driving the slide away from the motor), which can continuously complete the two key actions of workpiece pushing and push rod avoidance and retraction without frequent start-stop or reversal. Compared with the traditional reciprocating control of pushing one stroke and retracting one stroke, this logic significantly reduces the number of motor reversals and inertial impact, and improves the continuity of action and system life.

[0066] 2. Mechanical anti-interference, high reliability: This method utilizes the physical trajectory of the triangular slide (the transition from the first inclined segment to the second inclined segment) to force the push rod to execute a specific forward-backward path. In step S23, driven by the kinetic energy of the continuing movement of the slide, the push rod automatically performs an avoidance and retraction action, ensuring that the push rod can safely bypass the next workpiece to be processed when resetting. This purely mechanical avoidance logic does not rely on complex sensors or multi-axis servo control, avoiding the risk of the push rod colliding with the workpiece due to signal delay or program errors.

[0067] 3. Tightly coordinated action sequence and fast cycle time: This control logic allows the retraction action (S23) of the loading mechanism to be processed in parallel with the stamping action (S3) of the main drive mechanism. As soon as the workpiece is fed into the engagement point, the slide can continue to move forward to complete the push rod reset without waiting, preparing for the next cycle. This parallel timing eliminates the waiting time between mechanisms, effectively shortening the processing cycle time of a single product.

[0068] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. An automated embossing machine, characterized in that, include: Rack (1); The upper imprinting assembly includes an upper slider (10) and an upper imprinting rack (11) fixed to the lower side of the upper slider (10). The upper slider (10) is slidably disposed on the frame (1) in the horizontal direction. The lower imprint assembly includes a lower slider (21) and a lower imprint rack (22) fixed to the upper side of the lower slider (21). The lower slider (21) is slidably disposed on the frame (1) in the horizontal direction. The lower imprint rack (22) and the upper imprint rack (11) are arranged opposite each other at intervals to form a rolling channel (3). The height of the rolling channel (3) is adapted to the diameter of the workpiece (2). The main drive mechanism is connected to the lower imprint assembly and is used to drive the lower imprint assembly to perform reciprocating linear movement; The rocker linkage mechanism includes a rocker (40) pivotally mounted on the frame (1); the upper end of the rocker (40) is movably connected to the upper imprinting assembly, and the lower end of the rocker (40) is movably connected to the lower imprinting assembly; when the main drive mechanism drives the lower imprinting assembly to move in a horizontal first direction, the lower imprinting assembly drives the upper imprinting assembly to move in a second direction opposite to the first direction through the rocker (40), thereby driving the workpiece (2) located in the rolling channel (3) to roll and imprint.

2. The automated embossing machine according to claim 1, characterized in that, The main drive mechanism includes a power source (30), a drive screw (31), a threaded transmission block (32), an axial slider (33), and a transmission connecting rod (34); the power source (30) is used to drive the drive screw (31) to rotate; the threaded transmission block (32) is sleeved on the drive screw (31) and threadedly engaged with the drive screw (31), the threaded transmission block (32) is configured to be circumferentially fixed, so that when the drive screw (31) rotates, the threaded transmission block (32) moves along the axial direction of the drive screw (31); the transmission connecting rod (34) 4) One end is rotatably connected to the threaded transmission block (32), and the other end is movably connected to the lower slider (21); when the threaded transmission block (32) moves axially, the lower slider (21) is pushed to move along the first direction through the transmission connecting rod (34); the end of the drive screw (31) away from the power source (30) is an optical axis section, the axial slider (33) passes through the optical axis section and the axial slider (33) is fixed in the circumferential direction of the drive screw (31), and is slidably connected to the drive screw (31) in the axial direction.

3. The automated embossing machine according to claim 2, characterized in that, The middle part of the rocker arm (40) is hinged to the frame (1) via a rotation center shaft (41); the upper part of the rocker arm (40) is provided with a first upper sliding groove (42), and the upper slider (10) is provided with an upper central rotating shaft (12) extending into the first upper sliding groove (42), and the upper central rotating shaft (12) is slidably connected to the first upper sliding groove (42); the lower part of the rocker arm (40) is provided with a first lower sliding groove (43), and the lower slider (21) is provided with a lower central rotating shaft (23) extending into the first lower sliding groove (43), and the lower central rotating shaft (23) is slidably connected to the first lower sliding groove (43); the first upper sliding groove (42) and the first lower sliding groove (43) are arranged along the length direction of the rocker arm (40); the upper imprint assembly and the lower imprint assembly achieve synchronous reverse movement through the cooperation of the rocker arm (40) and the sliding groove.

4. The automated embossing machine according to claim 3, characterized in that, The lower part of the transmission link (34) is provided with a second sliding groove (341), which is inclined; the lower central rotating shaft (23) extends into the second sliding groove (341) and is slidably connected to the second sliding groove (341); when the transmission link (34) is subjected to force and swings, the second sliding groove (341) accommodates the vertical displacement component of the transmission link (34) to prevent jamming, and pushes the lower central rotating shaft (23) to move along the first direction through the groove wall of the second sliding groove (341).

5. The automated embossing machine according to claim 4, characterized in that, The drive screw (31) is also provided with a positioning block (35). The positioning block (35) is located on the drive screw (31) on the side away from the power source (30) relative to the threaded transmission block (32). The positioning block (35) is fixed to the drive screw (31) in the axial direction and is circumferentially connected by a bearing. The positioning block (35) is surrounded by a plurality of guide rods (36) in the circumferential direction. The guide rods (36) are arranged parallel to the drive screw (31). The guide rods (36) pass through the axial slider (33) and are slidably connected to the axial slider (33).

6. The automated embossing machine according to claim 5, characterized in that, The axial slider (33) has a second upper groove (331) on the side facing the upper imprinting assembly. The second upper groove (331) is inclined. The upper slider (10) has a sliding shaft (13) that extends into the second upper groove (331) and is slidably connected to the second upper groove (331).

7. The automated embossing machine according to claim 6, characterized in that, It also includes an automatic feeding mechanism, the transmission path of which passes through the inlet side of the rolling channel (3); The automatic feeding mechanism includes a feeding track (55), a feeding motor (50), a screw drive assembly (51), a slide table (52), a push rod (53), and a pushing mechanism; the feeding motor (50) drives the screw drive assembly (51) to move the slide table (52), and the push rod (53) passes through the frame (1) and is slidably connected to the frame (1) in a first direction; the pushing mechanism includes a triangular slide groove (521) set on the slide table (52) and a telescopic slide column (54) set in the triangular slide groove (521), the upper part of the telescopic slide column (54) is connected to the push rod (53), and the lower part is elastically connected to the upper part by a spring; The lower part of the telescopic slide column (54) is slidably connected to the triangular slide groove (521); the triangular slide groove (521) is divided into a translation section along the sliding direction of the slide table (52), and a first inclined section and a second inclined section connecting the translation section; the first inclined section is connected to the end of the translation section away from the feeding motor (50), the position of the first inclined section connected to the translation section forms a height difference with respect to the translation section and is at a low position, the position of the second inclined section connected to the translation section forms a height difference with respect to the translation section and is at a high position, the first inclined section and the second inclined section are smoothly connected; the stroke of the push rod (53) passes over the feeding track (55).

8. The automated embossing machine according to claim 7, characterized in that, The end of the feeding track (55) is provided with an inclined surface (56). Under the action of gravity, the workpiece (2) rolls down along the inclined surface (56) to the position to be pushed in front of the push rod (53). The feeding track (55) is provided with protruding positioning teeth (551) at intervals. The positioning teeth (551) match the width of the groove to be processed in the workpiece (2).

9. The automated embossing machine according to claim 8, characterized in that, It also includes an automatic unloading mechanism, which includes an unloading track (60) and a workpiece (2) collection groove (61). The unloading track (60) passes through the rolling channel (3). Positioning grooves (601) are provided on the unloading track (60) at intervals. The positioning grooves (601) match the thickness of the workpiece (2). The workpiece (2) collection groove (61) is located at the end of the unloading track (60).

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