Mechanism for sealing ring blanking

Abstract

The application discloses a mechanism for sealing ring blanking, which comprises a rack, a conveying mechanism for conveying sealing rings arranged on the rack, a discharge port arranged on the rack, a discharge disc arranged between the conveying mechanism and the discharge port, and a driving motor for driving the discharge disc to rotate, wherein the output end of the driving motor is in transmission connection with the discharge disc, a driven gear is further connected to the output shaft of the driving motor, the driven gear is arranged below the discharge disc, the driven gear is engaged with a speed reduction gear, the speed reduction gear is rotationally fitted in the rack, the speed reduction gear is further coaxially fitted with an incomplete gear, a rack is slidably arranged on the rack in correspondence with the position of the incomplete gear, the incomplete gear is engaged with the rack, a baffle is arranged on the rack, and a return spring is further arranged in abutment between the rack and the rack. The mechanism has the advantages of simple structure, high efficiency in blanking of the sealing rings, random sampling inspection, and good use effect.

Description

Technical Field

[0001] This invention relates to a mechanism for feeding sealing rings. Background Technology

[0002] In the automated production process of rubber sealing rings, the molded rubber sealing rings need to be conveyed in an orderly manner through the discharge port to achieve automated continuous production. Rubber sealing rings are soft, highly elastic, and have strong adhesive properties. During conventional discharge structures, they are prone to deformation, adhesion to walls, and accumulation, severely impacting the normal operating efficiency of the production line. In existing technologies, sealing ring discharge mostly adopts a direct-fall free discharge structure or a simple guide channel discharge structure, relying on the material's own weight for downward discharge. While this type of structure is simple and low-cost, it has significant technical drawbacks in practical production applications. The soft rubber sealing rings are easily deformed by compression within the discharge channel. The deformed sealing rings tend to adhere to the inner wall of the discharge port channel and the sealing installation position, making it difficult to detach smoothly from the discharge area. During continuous discharge of multiple sealing rings, stacking and jamming easily occur at the sealing ring installation position at the discharge port, causing problems such as discharge port blockage, uneven discharge, and unstable discharge cycle. Meanwhile, in order to improve product reliability, it is necessary to conduct random inspections of the products. However, currently, the main method is to grab the materials from the material box at the end of the processing flow and then inspect these grabbed materials. However, this grabbing is usually done manually, which increases labor costs. In addition, the products grabbed are usually placed into the collection box at the same time, and the materials at the bottom of the box are usually ignored by the manual inspection, which affects the quality inspection effect of the entire batch of products. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a mechanism for feeding sealing rings. It has a simple structure, can feed sealing rings more efficiently while also allowing for random sampling inspection, and has good performance.

[0004] To achieve the above objectives, the present invention provides a mechanism for unloading sealing rings, comprising a frame, a conveying mechanism for conveying sealing rings on the frame, and a discharge port on the frame. The mechanism is characterized in that: a discharge disc and a drive motor for driving the discharge disc to rotate are disposed between the discharge port and the conveying mechanism; the output end of the drive motor is connected to the discharge disc; a driven gear is also connected to the output shaft of the drive motor; the driven gear is disposed below the discharge disc; the driven gear meshes with a reduction gear; the reduction gear is rotatably engaged in the frame; the reduction gear is also coaxially engaged with an incomplete gear; a rack is slidably disposed on the frame corresponding to the position of the incomplete gear; the incomplete gear meshes with the rack; a baffle for guiding the sealing rings into a quality inspection collection trough is provided on the rack; and a return spring abuts against the rack between the rack and the frame for resetting the rack so that the baffle disengages from the sealing ring ejection path.

[0005] The advantages of this design are as follows: It employs an integrated structure that synchronously drives the discharge and sampling inspection using a single drive motor. The continuous rotation of the discharge disc generates centrifugal force, rapidly ejecting the conveyed rubber sealing rings radially. This replaces the traditional gravity-fed discharge method, effectively overcoming the tendency of soft sealing rings to adhere and accumulate on walls, preventing blockages at the discharge port, and ensuring smooth continuous discharge and stable cycle time. Simultaneously, the drive motor output shaft, via driven gears and reduction gears, drives a coaxial incomplete gear to rotate synchronously. The incomplete gear intermittently meshes with a rack, and a return spring enables the rack to slide back and forth, causing the baffle to periodically extend and retract from the sealing ring ejection path. During meshing, the baffle diverts and guides some sealing rings into the quality inspection collection tank; when disengaged, the return spring quickly resets the baffle, restoring the normal discharge channel. This sampling inspection structure requires no additional power source, enabling random sampling throughout the entire production cycle, covering products from different production periods, avoiding the representativeness bias of manual sampling, improving quality inspection accuracy, and reducing labor costs. The overall structure is compact, the transmission is reliable, and it is suitable for high-cycle automated production needs.

[0006] As a further feature of the present invention, the discharge plate is provided with a plurality of material-pushing ribs, which are arranged in an arc shape.

[0007] The beneficial effects of this design are as follows: The arc-shaped material-pushing ribs on the discharge tray rotate synchronously with the tray, actively applying radial pushing force to the sealing rings during centrifugal discharge. This helps the soft sealing rings quickly detach from the tray and be thrown outwards, effectively preventing them from adhering to the discharge tray surface and accumulating due to strong surface adhesion. The arc-shaped material-pushing ribs are compatible with the outer contour of the sealing ring, ensuring a smooth transition during contact and preventing scratches or abrasions to the rubber sealing ring surface, thus guaranteeing the finished product's appearance quality. Simultaneously, multiple evenly distributed ribs can break up the stacked sealing rings, preventing multiple sealing rings from jamming and allowing individual sealing rings to separate and be thrown out in an orderly manner, further improving the uniformity and stability of the discharge and reducing the probability of material jamming or stacking failures at the discharge port.

[0008] As a further feature of the present invention, a chamber is formed on the frame between the conveying mechanism and the discharge port, and a drive chamber is provided at the exposed position of the discharge plate. A through groove for rotating the feed plate is provided on the inner wall of the chamber corresponding to the position of the discharge plate.

[0009] The advantages of this design are as follows: By creating a chamber between the conveying mechanism and the discharge port, and housing the discharge tray within the drive chamber, with the material contact area only exposed through a trough, the transmission drive structure and material flow area are effectively isolated. This prevents rubber debris, dust, and material impurities from falling into the drive motor, gears, and other transmission components, reducing wear and jamming risks and extending equipment lifespan. The trough provides a regular limit to the exposed area of ​​the discharge tray, guiding the sealing ring to exit only from the designated trough area, preventing irregular splashing and making the discharge trajectory more controllable and orderly. Simultaneously, the chamber forms a semi-enclosed discharge space, reducing dust spillage during discharge, optimizing the production environment, and lowering the frequency and cost of on-site cleaning and maintenance.

[0010] As a further feature of the present invention, a blind hole is provided at the center of the discharge plate, and the discharge plate is connected to the output shaft of the drive motor through the blind hole. The blind hole and the output shaft of the drive motor are keyed together. A limiting groove is provided on the end face of the discharge plate facing the driven gear along the circumferential direction of the shaft hole. A lifting spring also abuts against the discharge plate and the driven gear. The lifting spring is sleeved on the output shaft of the drive motor. One end of the lifting spring is stuck in the limiting groove, and the other end abuts against the end face of the driven gear.

[0011] The beneficial effects of this design are twofold: firstly, the keyed connection ensures stable and reliable torque transmission between the drive motor output shaft and the discharge disc, guaranteeing uniform disc rotation speed and stable centrifugal force; secondly, the lifting spring between the discharge disc and the driven gear provides axial reciprocating floating capability. When the incoming material volume increases from a short time and the sealing rings stack and fall onto the disc surface, the discharge disc can compress the lifting spring and move downwards slightly, automatically increasing the material clearance between the disc surface and the top surface of the chamber, preventing material compression and jamming, and effectively adapting to fluctuating incoming material volume. The limiting groove forms a circumferential limit on the end of the lifting spring, preventing the lifting spring from shifting or moving during operation, ensuring stable and reliable floating reset action. Simultaneously, the floating structure buffers the impact force of falling material, preventing deformation damage to the sealing rings from rigid impacts.

[0012] As a further feature of the present invention, an abutment hole is provided on the frame corresponding to the center position of the discharge plate, and an abutment rod is threaded into the abutment hole. One end of the abutment rod abuts against the end face of the discharge plate facing away from the driven gear, and the other end is exposed outside the frame and is provided with an operating handle.

[0013] The advantages of this design are as follows: A threaded contact rod is installed at the center of the discharge plate on the frame, forming an externally operable discharge plate pressure adjustment structure in conjunction with an external operating handle. When the rubber sealing ring gets stuck in the gap between the discharge plate and the inner wall of the chamber, or gets caught inside the equipment causing material blockage, the operator does not need to disassemble the entire machine casing or remove internal transmission components. They only need to rotate the operating handle externally, using the threaded feed transmission to push the contact rod axially downwards, pressing it against the end face of the discharge plate. This causes the discharge plate to overcome the spring force of the bottom lifting spring and move slightly downwards, quickly increasing the gap between the discharge plate and the top surface of the chamber, and the edge of the groove. The originally clamped sealing ring loses its compressive force as the gap widens, allowing it to be directly removed or fall off naturally. This significantly simplifies the material clearing process, effectively shortens downtime due to malfunctions, and avoids the problems of decreased assembly precision and component damage caused by disassembly for cleaning.

[0014] As a further feature of the invention, the chamber is provided with a soft scraper on the passage groove.

[0015] The advantages of this design are as follows: A soft scraper is installed at the passageway position within the chamber, with its end conforming to the surface of the discharge tray. During the rotation of the discharge tray, the soft scraper continuously removes rubber debris, residual adhesive, and dust adhering to the tray surface, keeping it flat and clean. This prevents the long-term accumulation of residual impurities, which could form protrusions, affecting the discharge posture of the sealing rings or even causing jamming. The soft scraper is made of flexible material, ensuring effective cleaning without scratching the discharge tray surface or abrading the finished rubber sealing rings, effectively guaranteeing product appearance quality. Furthermore, this follow-up scraping structure requires no additional drive; continuous self-cleaning is achieved solely through the rotation of the discharge tray, significantly reducing the frequency of manual tray cleaning and making it suitable for long-term continuous automated production.

[0016] As a further feature of the present invention, the frame is provided with a baffle outside the discharge port, and the baffle is arranged in an arc shape.

[0017] The beneficial effects of this design are as follows: The arc-shaped baffle outside the discharge port acts as a guide and containment for the centrifugally ejected rubber sealing rings. This allows the high-speed ejected rings to slide smoothly along the inner wall of the arc-shaped baffle and eventually fall orderly into the collection area below. This prevents material from splashing and scattering due to excessive centrifugal force, ensuring neat and orderly collection and reducing the manual workload of subsequent material handling. The curved structure of the arc-shaped baffle gradually buffers the kinetic energy of the sealing rings, preventing them from bouncing, deforming, or being damaged by rigid impacts with the baffle, effectively ensuring the finished product qualification rate. Simultaneously, the arc-shaped baffle structure allows for adjustment of the curvature and opening direction according to the location of the collection trough, flexibly adapting to different collection layouts and improving the equipment's site adaptability and the stability of the material collection process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the transmission structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the rack structure in an embodiment of the present invention; Figure 4 This is a schematic diagram of the discharge tray structure in an embodiment of the present invention; Figure 5 This is a cross-sectional structural diagram of the discharge tray location in an embodiment of the present invention. Detailed Implementation

[0019] An example of the implementation of the mechanism for feeding sealing rings according to the present invention. Figures 1 to 5As shown: The device includes a frame 1, on which a conveying mechanism 2 for conveying sealing rings is mounted. The frame 1 has a discharge port, and a discharge disc 3 and a drive motor 4 for driving the discharge disc 3 to rotate are located between the discharge port and the conveying mechanism 2. The output end of the drive motor 4 is connected to the discharge disc 3. A driven gear 41 is also connected to the output shaft of the drive motor 4. The driven gear 41 is located below the discharge disc 3 and meshes with a reduction gear 5. The reduction gear 5 is rotatably engaged in the frame 1. The reduction gear 5 is also coaxially engaged with an incomplete gear 51. A rack 6 is slidably mounted on the frame 1 corresponding to the position of the incomplete gear 51. The incomplete gear 51 meshes with the rack 6. A baffle 62 for guiding the sealing rings into the quality inspection collection tank is mounted on the rack 6. A return spring 61 abuts against the rack 6 and the frame 1 to reset the rack 6, causing the baffle 62 to disengage from the sealing ring ejection path. The beneficial effects of this design are as follows: The integrated structure of synchronously driving discharge and sampling with a single drive motor 4 generates centrifugal force through the continuous rotation of the discharge disc 3, rapidly ejecting the conveyed rubber sealing rings radially. This replaces the traditional gravity-fed discharge mode, effectively overcoming the characteristics of soft sealing rings being prone to adhesion and wall accumulation, preventing discharge port blockage, and ensuring smooth continuous discharge and stable cycle time. Simultaneously, the output shaft of the drive motor 4, via driven gear 41 and reduction gear 5, drives the coaxial incomplete gear 51 to operate synchronously. The incomplete gear 51 intermittently meshes with the rack 6, and in conjunction with the return spring 61, enables the rack 6 to reciprocate, causing the baffle 62 to periodically extend into and retract from the sealing ring ejection path. During meshing, the baffle 62 diverts and guides some sealing rings into the quality inspection collection tank; when disengaged, the return spring 61 causes the baffle 62 to quickly reset, restoring the normal discharge channel. This sampling structure requires no additional power source, enabling random sampling throughout the entire time period, covering products at different production stages, avoiding the representativeness bias of manual sampling, improving the accuracy of quality inspection, and reducing labor costs. The overall structure is compact and the transmission is reliable, making it suitable for high-cycle automated production needs.

[0020] As a further feature of this embodiment, the discharge tray 3 is provided with a plurality of material-pushing ribs 31, which are arc-shaped. The beneficial effects of this design are: the arc-shaped material-pushing ribs 31 on the surface of the discharge tray 3 can rotate synchronously with the discharge tray 3, actively applying radial pushing force to the sealing ring on the tray surface during centrifugal throwing, assisting the soft sealing ring to quickly detach from the tray surface and be thrown outwards, effectively preventing the sealing ring from adhering to the surface of the discharge tray 3 due to strong surface adhesion and accumulating. The arc-shaped material-pushing ribs 31 are adapted to the outer contour of the sealing ring, and the contact process is a smooth transition, preventing scratches or abrasions to the surface of the rubber sealing ring, ensuring the appearance quality of the finished product; at the same time, multiple evenly arranged ribs can disperse the stacked sealing rings, preventing multiple sealing rings from jamming, allowing individual sealing rings to be separated and thrown out in an orderly manner, further improving the uniformity and stability of the discharge, and reducing the probability of material jamming and stacking failures at the discharge port.

[0021] As a further feature of this embodiment, a chamber is formed on the frame 1 between the conveying mechanism 2 and the discharge port. A drive chamber is located in the exposed portion of the discharge tray 3. A passage groove for rotating the discharge tray is provided on the inner wall of the chamber corresponding to the position of the discharge tray 3. The advantages of this configuration are: by setting a chamber between the conveying mechanism 2 and the discharge port, and housing part of the discharge tray 3 within the drive chamber, with only the material contact area exposed through the passage groove, the transmission drive structure and the material flow area can be effectively isolated. This prevents rubber fragments, dust, and material impurities from falling into the drive motor 4, gears, and other transmission components, reducing wear and jamming risks and extending the equipment's service life. The passage groove provides regular positioning for the exposed area of ​​the discharge tray 3, guiding the sealing ring to be ejected only from the designated groove area, preventing irregular splashing and scattering of materials, and making the discharge trajectory more controllable and orderly. Simultaneously, the chamber forms a semi-enclosed discharge space, reducing dust overflow during discharge, optimizing the production environment, and lowering the frequency and cost of on-site cleaning and maintenance.

[0022] As a further feature of this embodiment, a blind hole is provided in the center of the discharge plate 3. The discharge plate 3 is connected to the output shaft of the drive motor 4 through the blind hole. The blind hole and the output shaft of the drive motor 4 are keyed together. A limiting groove is provided along the circumference of the shaft hole on the end face of the discharge plate 3 facing the driven gear 41. A lifting spring 42 also abuts against the discharge plate 3 and the driven gear 41. The lifting spring 42 is sleeved on the output shaft of the drive motor 4. One end of the lifting spring 42 is stuck in the limiting groove, and the other end abuts against the end face of the driven gear 41. The beneficial effects of this design are as follows: Firstly, the keyed connection ensures stable and reliable torque transmission between the output shaft of the drive motor 4 and the discharge disc 3, guaranteeing uniform rotation speed and stable centrifugal force of the discharge disc 3. Secondly, the lifting spring 42 between the discharge disc 3 and the driven gear 41 provides the discharge disc 3 with axial reciprocating floating capability. When the incoming material volume increases from a short time and the sealing rings stack and fall onto the disc surface, the discharge disc 3 can compress the lifting spring 42 and move downward slightly, automatically increasing the material passage gap between the disc surface and the top surface of the chamber, preventing material compression and jamming, and effectively adapting to fluctuating incoming material volume. The limiting groove forms a circumferential limit on the end of the lifting spring 42, preventing the lifting spring 42 from shifting or moving during operation, ensuring stable and reliable floating reset action. At the same time, the floating structure can buffer the impact force of falling material, preventing deformation damage to the sealing rings due to rigid impact.

[0023] As a further feature of this embodiment, an abutment hole is provided on the frame 1 corresponding to the center position of the discharge plate 3. An abutment rod 43 is threaded into the abutment hole. One end of the abutment rod 43 abuts against the end face of the discharge plate 3 facing away from the driven gear 41, and the other end is exposed outside the frame 1 and is provided with an operating handle. The beneficial effect of this configuration is that the threaded abutment rod 43 at the center position of the frame 1 corresponding to the center position of the discharge plate 3, together with the external operating handle, forms an externally operable downward adjustment structure for the discharge plate 3. When the rubber sealing ring gets stuck in the fit gap between the discharge plate 3 and the inner wall of the cavity, or gets caught inside the equipment and causes material blockage, the operator does not need to disassemble the entire machine housing or disassemble the internal transmission components. They only need to rotate the operating handle outside the equipment, and the abutment rod 43 is axially advanced by means of the threaded feed transmission, pressing downward against the end face of the discharge plate 3. This causes the discharge plate 3 to overcome the elastic force of the bottom lifting spring 42 and move downward slightly, thereby quickly increasing the fit gap between the discharge plate 3 and the top surface of the cavity and the edge of the groove. The originally clamped sealing ring loses its squeezing force as the gap widens, and can be directly removed or fall off naturally, greatly simplifying the material cleaning process, effectively shortening downtime due to malfunctions, and avoiding problems such as decreased assembly accuracy and damage to parts caused by disassembly and cleaning.

[0024] As a further feature of this embodiment, a soft scraper is provided on the passage groove of the chamber. The advantages of this arrangement are: with the soft scraper positioned at the passage groove of the chamber, and its end conforming to the surface of the discharge disc 3, the soft scraper continuously removes rubber debris, residual adhesive, and dust impurities adhering to the disc surface during the rotation of the discharge disc 3. This keeps the surface of the discharge disc 3 flat and clean, preventing the long-term accumulation of residual impurities that could form protrusions, affecting the discharge posture of the sealing ring or even causing jamming. The soft scraper is made of a flexible material, ensuring effective cleaning without scratching the surface of the discharge disc 3 or abrading the finished rubber sealing rings, effectively guaranteeing the product's appearance quality. Furthermore, this follow-up scraping structure requires no additional drive; continuous self-cleaning is achieved solely by the rotation of the discharge disc 3, significantly reducing the frequency of manual cleaning of the disc surface and adapting to long-term continuous automated production.

[0025] As a further feature of this embodiment, the frame 1 is also equipped with a baffle outside the discharge port, and the baffle is arc-shaped. The advantages of this design are: the arc-shaped baffle outside the discharge port can guide and contain the centrifugally ejected rubber sealing rings, allowing them to slide smoothly along the inner wall of the arc-shaped baffle and eventually fall orderly into the collection area below. This prevents material from splashing and scattering due to excessive centrifugal force, ensuring neat and orderly discharge and collection, and reducing the manual workload of subsequent material handling. The curved surface structure of the arc-shaped baffle can gradually buffer the kinetic energy of the sealing rings, preventing them from rigidly impacting the baffle and causing bouncing, deformation, or damage, effectively ensuring the finished product qualification rate. Simultaneously, the arc-shaped baffle structure can adjust the curvature and opening direction according to the location of the collection trough, flexibly adapting to different collection layouts and improving the equipment's site adaptability and the stability of discharge and collection.

[0026] The above examples are merely one preferred embodiment of the present invention. Ordinary variations and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included within the protection scope of the present invention.

Claims

1. A mechanism for feeding sealing rings, comprising a frame, wherein a conveying mechanism for conveying sealing rings is provided on the frame, and a discharge port is provided on the frame, characterized in that: A discharge plate and a drive motor for driving the discharge plate to rotate are provided between the discharge port and the conveying mechanism. The output end of the drive motor is connected to the discharge plate. A driven gear is also connected to the output shaft of the drive motor. The driven gear is located below the discharge plate and meshes with a reduction gear. The reduction gear is rotatably engaged in the frame. The reduction gear is also coaxially engaged with an incomplete gear. A rack is slidably arranged on the frame corresponding to the position of the incomplete gear. The incomplete gear meshes with the rack. A baffle for guiding the sealing ring into the quality inspection collection tank is provided on the rack. A return spring for resetting the rack and causing the baffle to disengage from the sealing ring's ejection path is also abutted between the rack and the frame.

2. The mechanism for feeding sealing rings according to claim 1, characterized in that: The discharge plate is provided with several material-pushing ribs, which are arranged in an arc shape.

3. The mechanism for feeding sealing rings according to claim 2, characterized in that: A chamber is formed on the frame between the conveying mechanism and the discharge port. A drive chamber is provided at the exposed position of the discharge plate. A passage groove for rotating the feed plate is provided on the inner wall of the chamber corresponding to the position of the discharge plate.

4. The mechanism for feeding sealing rings according to claim 3, characterized in that: The discharge plate has a blind hole at its center, and the discharge plate is connected to the output shaft of the drive motor through the blind hole. The blind hole and the output shaft of the drive motor are keyed together. A limiting groove is provided on the end face of the discharge plate facing the driven gear along the circumferential direction of the shaft hole. A lifting spring also abuts against the discharge plate and the driven gear. The lifting spring is sleeved on the output shaft of the drive motor. One end of the lifting spring is stuck in the limiting groove, and the other end abuts against the end face of the driven gear.

5. The mechanism for feeding sealing rings according to claim 4, characterized in that: The frame is provided with an abutment hole at the center of the discharge plate. An abutment rod is threaded into the abutment hole. One end of the abutment rod abuts against the end face of the discharge plate facing away from the driven gear, and the other end is exposed outside the frame and is provided with an operating handle.

6. The mechanism for feeding sealing rings according to claim 3, characterized in that: The chamber is equipped with a soft scraper on the passageway.

7. The mechanism for feeding sealing rings according to claim 1, characterized in that: The frame is also equipped with a baffle outside the discharge port, and the baffle is arc-shaped.

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