Rotary feeding and conveying equipment for hinge cup blanks

Abstract

The invention relates to the technical field of feeding and conveying, and discloses hinge cup blank rotary feeding and conveying equipment which comprises a base, a vibration disc is arranged at one end of the base, a hinge cup blank is placed on the vibration disc, a check ring fixedly connected with the base is arranged on the outer side of the vibration disc, and the hinge cup blank comprises a base plate and a protruding part arranged in the middle of the base plate. The device further comprises a material taking mechanism and a material guiding mechanism. And the material guiding mechanism is arranged on the inner wall of the check ring, is used for adjusting the hinge cup blank on the vibration disc to a preset posture, and comprises a hanging plate fixedly connected with the check ring, and two spiral material guiding rods which are concentrically arranged are arranged on the side face of the hanging plate. According to the hinge cup blank screening device, by arranging the downwards inclined spiral guide rod and utilizing the structural characteristics of hinge cup blanks, mechanical directional screening can be completed without a visual identification system, and the equipment cost and the control difficulty are remarkably reduced.

Description

Technical Field

[0001] This invention relates to the field of material feeding and conveying technology, specifically a rotary material feeding and conveying device for hinged cup blanks. Background Technology

[0002] Hinges, as indispensable connecting components in furniture, cabinets, and various boxes, directly affect the user experience and lifespan of the final product due to the precision of their structure and the stability of their assembly. A complete hinge mainly consists of two core components: the hinge cup and the hinge arm. In actual production, the hinge cup and hinge arm are usually processed into blanks through processes such as stamping and forming. They are then assembled with various other parts, such as springs, connecting rods, adjusting screws, base plates, and decorative covers, with high precision to finally form a fully functional hinge product.

[0003] In mass production and standardization, hinge cup blanks, due to their unique structure, are typically irregular three-dimensional shapes, posing a technical challenge in positioning and directional conveying before entering subsequent processing or assembly stages. Traditional linear belt conveyors can only achieve continuous material transport but cannot effectively adjust and orient the irregular blanks, failing to meet the stringent requirements of automated production lines for material orientation. To address this issue, existing technologies typically employ robotic arms equipped with high-precision vision recognition systems for grasping and placing. However, these systems are not only costly but also highly dependent on ambient lighting and software algorithms, increasing investment and maintenance complexity and hindering cost control and efficiency improvements. Therefore, there is an urgent need to develop a simple, cost-effective, and efficient feeding device for the directional conveying of hinge cup blanks. Summary of the Invention

[0004] This invention provides a rotary feeding and conveying device for hinged cup blanks, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A rotary feeding and conveying device for hinged cup blanks includes a base, a vibrating plate is provided at one end of the base, a hinged cup blank is placed on the vibrating plate, a retaining ring is provided on the outside of the vibrating plate and fixedly connected to the base, the hinged cup blank includes a base plate and a protrusion provided in the middle of the base plate, and also includes a material picking mechanism and a material guiding mechanism. A material guiding mechanism is provided on the inner wall of the retaining ring and is used to adjust the hinge cup blank on the vibratory feeder to a preset posture. It includes a suspension plate fixedly connected to the retaining ring. Two concentrically arranged spiral guide rods are provided on the side of the suspension plate. The spiral direction of the spiral guide rods is the same as the rotation direction of the vibratory feeder. The end of the spiral guide rod away from the suspension plate extends downward at an angle toward the vibratory feeder. The material picking mechanism is located on the base at one end away from the vibratory plate, and is used to pick up the hinge cup blanks guided and conveyed by the spiral guide rod in sequence.

[0006] As a preferred embodiment of the present invention, the distance between the spiral guide rod on the side closer to the inner wall of the retaining ring and the inner wall of the retaining ring is smaller than the distance between the end of the substrate and the protrusion, and the central angle corresponding to the spiral guide rod on the side closer to the retaining ring is larger than the central angle corresponding to the other spiral guide rod.

[0007] As a preferred embodiment of the present invention, a scraper is fixedly provided on the inner wall of the retaining ring, and the vertical distance between the scraper and the spiral guide rod is greater than the thickness of the substrate and less than the thickness of the protrusion.

[0008] As a preferred embodiment of the present invention, the vibratory plate is a circular structure with a raised center, and the base is provided with a rotary vibration drive assembly for driving the vibratory plate to rotate and vibrate up and down.

[0009] As a preferred embodiment of the present invention, the rotary vibration drive assembly includes a main shaft rotatably connected to the base, a sliding sleeve that rotates synchronously with the main shaft being slidably connected to the side of the main shaft away from the base, a vibrating disk being fixedly connected to the end of the sliding sleeve, a rotary drive device for driving the main shaft to rotate being provided at the end of the base, a protruding ring being fixedly provided in the middle of the sliding sleeve, and a lifting bracket that cooperates with the protruding ring to drive the sliding sleeve to vibrate up and down being provided on the side of the base.

[0010] As a preferred embodiment of the present invention, the material handling mechanism includes a sliding seat disposed on a base, a sliding rod disposed on the sliding seat, a transverse support slidably connected to the middle of the sliding rod, an extension arm disposed at the end of the transverse support, and a clamping assembly for clamping the hinge cup blank disposed at the end of the extension arm.

[0011] As a preferred embodiment of the present invention, the clamping assembly includes a fixed plate fixedly connected to the end of the extension arm, a first guide rod is provided on both sides of the fixed plate, an end baffle is fixedly connected to the end of the first guide rod, a sliding plate is slidably connected to the middle of the first guide rod, a first buffer spring is provided between the sliding plate and the end baffle, an L-shaped support plate is provided on the side of the sliding plate away from the base, a positioning block is provided at the end of the L-shaped support plate that mates with the recess of the protrusion, and a trapezoidal support block is provided on the side of the sliding plate close to the base.

[0012] As a preferred embodiment of the present invention, guide slopes are provided on both sides of the positioning block and on the side of the trapezoidal support block near the vibrating plate.

[0013] As a preferred embodiment of the present invention, the trapezoidal support block is slidably connected to a second guide rod that is fixedly connected to a sliding plate, and a second buffer spring is provided between the trapezoidal support block and the sliding plate. When the trapezoidal support block contacts the spiral guide rod, the second buffer spring is compressed first, and after it is compressed to its limit, the first buffer spring is compressed accordingly.

[0014] The present invention has the following advantages: 1. By setting two concentric, downward-sloping spiral guide rods, forming a specific guide gap with the inner wall of the retaining ring, mechanical directional screening is achieved using the structural characteristics of the hinge cup blank itself (the height difference between the base plate and the protrusion). When the hinge cup blank moves in the correct posture with the protrusion facing downward, its base plate can smoothly overlap the upper surface of the spiral guide rod, and the protrusion falls into the gap between the two rods, thus being guided and transported orderly along the spiral path; if the posture is incorrect, it cannot enter the guide path or will be forcibly rejected by the scraper rod. This structure completely replaces the complex scheme of relying on a high-precision visual recognition system for posture determination in traditional technology, significantly reducing equipment manufacturing costs and control difficulty.

[0015] 2. The material handling mechanism employs a multi-stage buffer spring-driven positioning block and trapezoidal support block to achieve precise positioning and flexible clamping of the hinge cup blank. During the material handling process, the trapezoidal support block first presses against the spiral guide rod to compress the second buffer spring, allowing the positioning block to initially insert into the recess of the protrusion. After the second buffer spring is compressed to its limit, the first buffer spring deforms, causing the trapezoidal support block to descend and lift the bottom of the hinge cup blank, ultimately achieving a composite clamping state where the positioning block is fully embedded and the trapezoidal support block provides stable support. This process can be automatically completed solely by the reciprocating motion of the transverse support, without the need for additional visual positioning or complex multi-axis robotic arm intervention, ensuring both the accuracy of material handling and avoiding hard damage to the surface of the blank.

[0016] 3. The entire feeding and conveying equipment has a compact structure and reliable operation. Through the rotation and vibration of the vibratory feeder, the mechanical screening of the spiral guide rod, and the reciprocating clamping of the material handling mechanism, it achieves fully automated processing from disordered feeding to directional output. Its core components are all conventional mechanical structures, which are easy to manufacture, install, and maintain. It also has low energy consumption and stable cycle time, making it particularly suitable for the needs of large-volume, low-cost, and high-efficiency directional conveying of hinge cup blanks in the hinge manufacturing industry, and has good prospects for industrial application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a rotating feeding and conveying device for hinged cup blanks.

[0019] Figure 2 This is a front view of a rotary feeding and conveying device for hinged cup blanks.

[0020] Figure 3 This is a schematic diagram of the structure of a hinged cup blank in a rotary feeding and conveying device for hinged cup blanks.

[0021] Figure 4 This is a schematic diagram of the material handling mechanism in a rotary feeding and conveying equipment for hinged cup blanks.

[0022] Figure 5 This is a schematic diagram of the clamping assembly in a rotary feeding and conveying device for hinged cup blanks.

[0023] Figure 6 This is a schematic diagram of the structure of a vibratory feeder in a rotary feeding and conveying device for hinged cup blanks.

[0024] Figure 7 for Figure 6 Top view.

[0025] Figure 8 This is a schematic diagram of the spiral guide rod in a rotary feeding and conveying device for hinged cup blanks.

[0026] Figure 9 This is a schematic diagram of the rotary vibration drive component in a rotary feeding and conveying equipment for hinged cup blanks.

[0027] Figure 10 This is a schematic diagram of the structure of a rotating feeding and conveying device for hinged cup blanks when the second buffer spring is compressed.

[0028] Figure 11 This is a schematic diagram of the structure of a trapezoidal support block after it moves below the hinged cup blank in a rotary feeding and conveying device for hinged cup blanks.

[0029] In the diagram: 1. Base; 2. Material handling mechanism; 3. Vibratory feeder; 4. Hinge cup blank; 5. Retaining ring; 6. Rotary vibration drive assembly; 7. Base plate; 8. Protrusion; 9. Sliding seat; 10. Transverse support; 11. Sliding rod; 12. Extending arm; 13. Clamping assembly; 14. Fixing plate; 15. Sliding plate; 16. Positioning block; 17. L-shaped support plate; 18. First guide rod; 19. First buffer spring; 20. End baffle; 21. Second buffer spring; 22. Second guide rod; 23. Trapezoidal support block; 24. Material handling notch; 25. Fixing support; 26. Suspension plate; 27. Spiral guide rod; 28. Protruding ring; 29. ​​Sliding sleeve; 30. Rotary drive device; 31. Main shaft; 32. Lifting support; 33. Material guiding mechanism; 34. Scraper rod. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In one embodiment, see Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8 A rotary feeding and conveying device for hinged cup blanks includes a base 1, which supports and fixes the entire device. A vibratory feeder 3 is disposed at one end of the base 1 (e.g., the right end in the figure), the vibratory feeder 3 being generally horizontally arranged to accommodate and convey the hinged cup blanks 4 to be processed. A large number of hinged cup blanks 4 are placed above the vibratory feeder 3. A circular retaining ring 5 is fitted around the outside of the vibratory feeder 3, the retaining ring 5 being separate from the vibratory feeder 3 and not in contact with it. The retaining ring 5 is fixedly connected to the base 1 via the lower part of a fixed bracket 25 fixedly connected to its front and rear sides, so that the retaining ring 5 remains stationary when the vibratory feeder 3 rotates. A material picking notch 24 is provided on one side of the retaining ring 5 (e.g., the left side in the figure), through which the hinged cup blanks 4 can be removed after being oriented. The hinge cup blank 4 has an irregular three-dimensional structure, specifically including a generally flat base plate 7 and a protrusion 8 integrally formed in the middle of the base plate 7. The center of the protrusion 8 usually has a recessed structure, such as a groove for connecting with the hinge arm. The device also includes a guiding mechanism 33 for directional conveying and a picking mechanism 2 for picking up materials.

[0032] The material guiding mechanism 33 is located inside the retaining ring 5. Its function is to adjust the disordered hinge cup blanks 4 on the vibratory plate 3 to a preset, uniform posture to facilitate subsequent material handling and processing. Specifically, the material guiding mechanism 33 includes a suspension plate 26 fixedly connected to the inner wall of the retaining ring 5, which is located in front of the material handling notch 24. On the rear side of the suspension plate 26, the front ends of two concentrically arranged spiral guide rods 27 are fixedly connected to the left and right sides respectively. Each spiral guide rod 27 includes a horizontal extension section at the front and a downwardly inclined spiral section at the rear. Its working principle is as follows: When the hinge cup blank 4 moves to this area with the vibrating plate 3, if the posture of the hinge cup blank 4 is such that the protrusion 8 is facing downwards and the base plate 7 is facing upwards, the base plate 7 will overlap the upper surface of the two spiral guide rods 27, and the protrusion 8 in the middle will fall into the gap between the two spiral guide rods 27. This allows the spiral guide rods 27 to lift the hinge cup blank 4 and guide it to move along the spiral path, thus realizing the preliminary screening and directional conveying of the hinge cup blank 4. The picking mechanism 2 is set at the end of the base 1 away from the vibrating plate 3 (i.e., the left side), and is used to pick up the hinge cup blank 4 guided and conveyed to the end by the spiral guide rods 27 in sequence, thereby realizing the single-piece, directional picking action.

[0033] In one instance of this embodiment, please refer to Figure 1 , Figure 6 , Figure 7 and Figure 8 To ensure the accuracy of directional screening, this equipment limits the key dimensions of the guiding mechanism 33. Specifically, the horizontal distance between the spiral guide rod 27 near the inner wall of the retaining ring 5 and the inner wall of the retaining ring 5 is set to be less than the distance from the end of the substrate 7 to the outermost edge of the protrusion 8. This means that only when the substrate 7 side where the protrusion 8 of the hinge cup blank 4 is located is in close contact with the inner wall of the retaining ring 5 can its protrusion 8 smoothly enter the gap between the two spiral guide rods 27, thereby allowing the substrate 7 to overlap on the guide rods. Conversely, if the posture is not correct, it cannot enter the guiding path. In addition, the central angle corresponding to the spiral guide rod 27 near the retaining ring 5 is set to be greater than the central angle corresponding to the other inner spiral guide rod 27. In other words, the starting end (right end) of the inner spiral guide rod 27 is at the starting end of the outer spiral guide rod 27. The purpose of this design is that if the orientation of the hinge cup blank 4 does not meet the preset requirements, when it comes into contact with the ends of the two spiral guide rods 27, it will generate a deflection torque due to uneven force, causing it to slide off the spiral guide rods 27 back into the vibrating plate 3. This effectively avoids the jamming phenomenon that may occur when the two spiral guide rods 27 are of equal length, and ensures the smoothness of the screening process.

[0034] As a further optimization, a scraper rod 34 is fixedly installed on the inner wall of the retaining ring 5. The scraper rod 34 is generally oriented front to back and cooperates with the spiral guide rod 27 to form a screening gap. The vertical distance between the scraper rod 34 and the spiral guide rod 27 is precisely set to be greater than the thickness of the substrate 7 and less than the thickness of the protrusion 8. In this way, the hinge cup blank 4 can pass smoothly through the gap between the scraper rod 34 and the spiral guide rod 27 only when the substrate 7 overlaps the spiral guide rod 27 and the protrusion 8 hangs between the two rods. If the orientation of the hinge cup blank 4 is incorrect (for example, the protrusion 8 is facing upward), its protrusion 8 will be blocked by the scraper rod 34 due to its excessive thickness, and will be forcibly scraped off the spiral guide rod 27 and returned to the vibrating plate 3 for re-screening.

[0035] In one instance of this embodiment, please refer to Figure 9 The vibratory feeder 3 is preferably a disc structure with a raised center. This structure allows the hinge cup blank 4 placed on it to move more efficiently towards the edge during vibration and rotation, facilitating contact with the spiral guide rod 27 located at the edge. To drive the vibratory feeder 3 to achieve compound motion, a rotary vibration drive assembly 6 is provided on the base 1. This assembly not only drives the vibratory feeder 3 to rotate around its axis, but also causes it to vibrate up and down while rotating, thereby causing the hinge cup blank 4 to continuously flip, increasing the probability that its posture is adjusted to the preset direction (protrusion 8 downward).

[0036] One specific implementation of the rotary vibration drive assembly 6 includes: a vertical main shaft 31 rotatably connected to the base 1; a sliding sleeve 29 slidably sleeved on the upper end of the main shaft 31, the sliding sleeve 29 being connected to the main shaft 31 via a key or spline, thereby rotating synchronously with the main shaft 31 and also being able to slide freely along the axial direction; the upper end of the sliding sleeve 29 being fixedly connected to the center of the lower surface of the vibrating plate 3; a rotary drive device 30 (e.g., composed of a motor and a pulley) disposed on the base 1 for driving the main shaft 31 to rotate; a protruding ring 28 fixedly disposed in the middle of the sliding sleeve 29, the lower surface of the protruding ring 28 having multiple protrusions distributed circumferentially; and a lifting bracket 32 ​​fixedly disposed on the base 1, the lifting bracket 32 ​​having an upward-opening U-shaped structure, the top of which abuts against the lower surface of the protruding ring 28. When the main shaft 31 drives the sliding sleeve 29 and the raised ring 28 to rotate, the protrusion on the lower surface of the raised ring 28 periodically contacts the lifting bracket 32, thereby causing the sliding sleeve 29 to be lifted against gravity, and then fall back under the action of gravity. This cycle drives the vibratory plate 3 to vibrate up and down while rotating. The continuous flipping action of the vibratory plate 3 ensures that no matter what the initial posture of the hinge cup blank 4 is, it has the opportunity to flip to the state where the protrusion 8 faces downward, and be captured by the spiral guide rod 27 at the edge of the vibratory plate 3, completing the directional screening.

[0037] In one instance of this embodiment, please refer to Figure 1, Figure 4 , Figure 5 , Figure 6 , Figure 10 and Figure 11 The material handling mechanism 2 is located on the left side of the base 1 and is used to remove the hinge cup blanks 4, which are oriented and arranged at the end of the spiral guide rod 27, one by one. Its structure includes: a U-shaped sliding seat 9 fixed to the base 1; a horizontally positioned (e.g., left-right oriented) sliding rod 11 mounted on the sliding seat 9; a transverse support 10, the lower part of which is slidably connected to the sliding rod 11; and a drive unit (such as a cylinder or electric push rod, not shown in the figure) located inside the sliding seat 9, used to drive the transverse support 10 to reciprocate linearly along the sliding rod 11. A horizontally positioned extension arm 12 is fixedly connected to the upper end of the transverse support 10, and a clamping assembly 13 is provided at the right end of the extension arm 12. During operation, the transverse support 10 moves the clamping assembly 13 to the right, clamping the hinge cup blank 4 located at the left end of the spiral guide rod 27; then it moves to the left, removing the clamped hinge cup blank 4 from the guide mechanism 33 and transferring it to the left side, completing the material handling action. The removed hinge cup blank 4 can be transferred to the downstream process. For example, a conveyor belt can be set below the clamping assembly 13, and with the help of a stop bar, the hinge cup blank 4 will automatically fall onto the conveyor belt after moving to the left. Since the orientation of the hinge cup blank 4 is fixed during the clamping process, its direction of falling onto the conveyor belt also remains unchanged, thus achieving directional output.

[0038] The clamping assembly 13 is crucial for achieving precise picking. Its specific structure includes: a fixed plate 14 fixedly connected to the right end of the extension arm 12; two first guide rods 18 vertically arranged on the upper and lower sides of the fixed plate 14 (two rods can be arranged side-by-side on each side to ensure stability); a sliding plate 15 slidably connected to the middle of the first guide rods 18; an end baffle 20 fixedly connected to the end of the first guide rods 18; and a first buffer spring 19 sleeved on the first guide rods 18, located between the sliding plate 15 and the end baffle 20, whose elasticity causes the sliding plate 15 to tend to move closer to the fixed plate 14. On the right side of the upper sliding plate 15, an L-shaped support plate 17 is fixedly connected, and a positioning block 16 is provided at the right end of the L-shaped support plate 17. The outer dimensions of the positioning block 16 match the recess of the protrusion 8 on the hinge cup blank 4, allowing for a clearance fit insertion. On the right side of the lower sliding plate 15, a second guide rod 22 is horizontally arranged, and a trapezoidal support block 23 is slidably connected to the right end of the second guide rod 22. A second buffer spring 21 is arranged between the left side of the trapezoidal support block 23 and the right side of the lower sliding plate 15. Guide slopes are provided on the right side of the trapezoidal support block 23 and on both sides of the lower end of the positioning block 16 to facilitate guidance when in contact with the hinge cup blank 4 or the spiral guide rod 27.

[0039] The elastic coefficients of the first buffer spring 19 and the second buffer spring 21 are preset so that when the clamping assembly 13 moves to the right and contacts the spiral guide rod 27, it can produce a sequential and compound clamping action. First, the trapezoidal support block 23 abuts against the spiral guide rod 27. Due to the resistance, the trapezoidal support block 23 stops moving to the right, the second buffer spring 21 is compressed, and the positioning block 16 continues to move to the right. The guide slope on the lower right side guides it over the base plate 7. Finally, the positioning block 16 moves to directly above the recess of the protrusion 8 and falls slightly due to the elastic force of the first buffer spring 19, achieving initial positioning. When the second buffer spring 21 is compressed to its limit, the resistance to the right movement of the lower sliding plate 15 increases. At this time, as the clamping assembly 13 continues to move to the right, the first buffer spring 19 begins to deform, causing the entire sliding plate 15 to move downward relative to the fixed plate 14, thereby driving the trapezoidal support block 23 to move downward as well. The guide slope on the right side of the trapezoidal support block 23 allows it to smoothly descend to below the bottom of the hinge cup blank 4 and lift it upward. At this point, the recessed part of the protrusion 8 fits perfectly onto the positioning block 16, thus achieving precise positioning and stable clamping of the hinge cup blank 4. When the clamping assembly 13 moves back to the left, the hinge cup blank 4 is forcibly moved due to the cooperation between the positioning block 16 and the protrusion 8. The arc surface at the bottom of the hinge cup blank 4 slides along the upper surface of the spiral guide rod 27, causing it to adaptively float up and eventually completely detach from the spiral guide rod 27. Then, under the action of gravity, it falls back onto the trapezoidal support block 23 and is smoothly transported to the left side.

[0040] Based on the above structure, the working process of this equipment is as follows: First, fix the base 1 and connect the vibratory feeder 3 to the upstream production line to continuously input the hinge cup blank 4. Start the drive unit of the rotary drive device 30 and the transverse support 10, and the equipment enters the working state.

[0041] Directional feeding process: Viewed from above, the vibratory feeder 3 rotates counterclockwise. Under the rotation and vibration of the vibratory feeder 3, the hinge cup blank 4 continuously moves towards the edge. When its posture does not conform to the preset direction (protrusion 8 downward and base plate 7 tightly attached to retaining ring 5), its side will contact the ends of the two spiral guide rods 27 and be guided to rotate and slide down, returning to the vibratory feeder 3 to wait for the next screening. When the posture of the hinge cup blank 4 exactly conforms to the preset direction, its protrusion 8 will enter the gap between the two spiral guide rods 27, and the base plate 7 will overlap on the spiral guide rods 27. Due to the continuous pushing of the hinge cup blank 4, the hinge cup blank 4 moves to the left along the spiral guide rods 27. During the movement, if the posture of some individual hinge cup blanks 4 changes due to vibration or other reasons (such as the protrusion 8 facing upward), when they pass the scraper bar 34, because the thickness of the protrusion 8 is too large, they will be forcibly scraped back into the vibrating plate 3 by the scraper bar 34, thus ensuring that the hinge cup blanks 4 that finally stop on the spiral guide bar 27 are all in a qualified posture and are connected end to end, waiting to be picked up.

[0042] Material handling steps: The transverse support 10 drives the clamping assembly 13 to move to the right. First, the guide slope on the lower right side of the positioning block 16 contacts the substrate 7, the positioning block 16 is lifted and moves to the right along the upper surface of the substrate 7. At the same time, the trapezoidal support block 23 abuts against the spiral guide rod 27, the second buffer spring 21 begins to compress, and the trapezoidal support block 23 stops moving to the right. When the positioning block 16 moves to directly above the recess of the protrusion 8, under the slight elastic force of the first buffer spring 19, the positioning block 16 falls slightly and enters the recess, initially limiting the hinge cup blank 4. Subsequently, the second buffer spring 21 is compressed to its limit, the clamping assembly 13 continues to move to the right, forcing the lower first buffer spring 19 to deform, causing the entire lower sliding plate 15 to move downward, the trapezoidal support block 23 descends relatively and slides into the bottom of the hinge cup blank 4, lifting it upward. At this time, the positioning block 16 is fully inserted into the recess of the protrusion 8, completing the precise clamping of the hinge cup blank 4. Subsequently, the transverse support 10 drives the clamping assembly 13 to move to the left. Due to the cooperation between the positioning block 16 and the recess, the hinge cup blank 4 moves to the left along with it, and its bottom arc surface slides along the upper surface of the spiral guide rod 27, eventually completely disengaging from the guide mechanism 33 and being stably transported to the designated position on the left by the clamping assembly 13, completing one material picking cycle.

[0043] This invention provides a rotary feeding and conveying device for hinged cup blanks. By setting a downwardly inclined spiral guide rod 27, and utilizing the structural characteristics of the hinged cup blank 4 itself, mechanical orientation screening can be completed without a visual recognition system, significantly reducing equipment costs and control difficulty. Simultaneously, the material handling mechanism 2, through clever cooperation with the spiral guide rod 27, utilizes multi-stage buffer springs to achieve automatic positioning and flexible clamping of the hinged cup blank 4. The entire material handling process can be completed only by the reciprocating motion of the transverse support 10. It features a simple structure, reliable operation, and high efficiency, making it ideal for large-scale, low-cost industrial production applications.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A rotary feeding and conveying device for hinged cup blanks, comprising a base, a vibrating plate disposed at one end of the base, a hinged cup blank placed on the vibrating plate, and a retaining ring fixedly connected to the base on the outer side of the vibrating plate, characterized in that, The hinge cup blank includes a substrate and a protrusion disposed in the middle of the substrate, and also includes a material picking mechanism and a material guiding mechanism; A material guiding mechanism is provided on the inner wall of the retaining ring and is used to adjust the hinge cup blank on the vibratory feeder to a preset posture. It includes a suspension plate fixedly connected to the retaining ring. Two concentrically arranged spiral guide rods are provided on the side of the suspension plate. The spiral direction of the spiral guide rods is the same as the rotation direction of the vibratory feeder. The end of the spiral guide rod away from the suspension plate extends downward at an angle toward the vibratory feeder. The material picking mechanism is located on the base at one end away from the vibratory plate, and is used to pick up the hinge cup blanks guided and conveyed by the spiral guide rod in sequence.

2. The rotary feeding and conveying device for hinged cup blanks according to claim 1, characterized in that, The distance between the spiral guide rod near the inner wall of the retaining ring and the inner wall of the retaining ring is smaller than the distance between the end of the substrate and the protrusion. The central angle corresponding to the spiral guide rod near the retaining ring is larger than the central angle corresponding to the other spiral guide rod.

3. The rotary feeding and conveying device for hinged cup blanks according to claim 1, characterized in that, A scraper is fixedly provided on the inner wall of the retaining ring. The vertical distance between the scraper and the spiral guide rod is greater than the thickness of the substrate and less than the thickness of the protrusion.

4. The rotary feeding and conveying device for hinged cup blanks according to claim 1, characterized in that, The vibratory plate is a circular structure with a raised center, and the base is provided with a rotary vibration drive assembly for driving the vibratory plate to rotate and vibrate up and down.

5. The rotary feeding and conveying device for hinged cup blanks according to claim 4, characterized in that, The rotary vibration drive assembly includes a main shaft rotatably connected to the base, a sliding sleeve that rotates synchronously with the main shaft slidably connected to the side of the main shaft away from the base, a vibrating plate fixedly connected to the end of the sliding sleeve, a rotary drive device for driving the main shaft to rotate provided at the end of the base, a protruding ring fixedly provided in the middle of the sliding sleeve, and a lifting bracket provided on the side of the base that cooperates with the protruding ring to drive the sliding sleeve to vibrate up and down.

6. The rotary feeding and conveying device for hinged cup blanks according to claim 1, characterized in that, The material handling mechanism includes a sliding seat mounted on a base, a sliding rod mounted on the sliding seat, a transverse support slidably connected to the middle of the sliding rod, an extension arm at the end of the transverse support, and a clamping assembly for clamping the hinge cup blank at the end of the extension arm.

7. The rotary feeding and conveying device for hinged cup blanks according to claim 6, characterized in that, The clamping assembly includes a fixed plate fixedly connected to the end of the extension arm. First guide rods are provided on both sides of the fixed plate. End baffles are fixedly connected to the ends of the first guide rods. A sliding plate is slidably connected to the middle of the first guide rods. A first buffer spring is provided between the sliding plate and the end baffle. An L-shaped support plate is provided on the side of the sliding plate away from the base. A positioning block that mates with the recess of the protrusion is provided at the end of the L-shaped support plate. A trapezoidal support block is provided on the side of the sliding plate close to the base.

8. The rotary feeding and conveying device for hinged cup blanks according to claim 7, characterized in that, Guide slopes are provided on both sides of the positioning block and on the side of the trapezoidal support block near the vibrating plate.

9. A rotary feeding and conveying device for hinged cup blanks according to claim 8, characterized in that, The trapezoidal support block has a second guide rod slidably connected to the side and fixedly connected to the sliding plate. A second buffer spring is provided between the trapezoidal support block and the sliding plate. When the trapezoidal support block contacts the spiral guide rod, the second buffer spring is compressed first. After it is compressed to its limit, the first buffer spring is compressed accordingly.

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