Floss tip transfer device

Abstract

The utility model discloses a floss transfer piece conveying variable distance device, including the conveying mechanism and the carrying mechanism of being located on the frame, two groups of conveying mechanism are arranged adjacent, and each group of conveying mechanism all includes two groups of opposite load synchronous belt pulley subassembly of being located on the both outer sides of frame, and the pulley drive subassembly for driving two groups of load synchronous belt pulley subassembly synchronous rotation, and the load synchronous belt of load synchronous belt pulley subassembly is equidistant interval and is equipped with a plurality of positioning block with V -shaped groove, and the interval between the adjacent positioning block on one group of conveying mechanism is less than the interval between the adjacent positioning block on another group of conveying mechanism, the carrying mechanism includes the jaw assembly for grabbing transfer piece between two groups of conveying mechanism, and the carrying drive subassembly for driving jaw assembly will be located in one group of conveying mechanism on transfer piece is handed over in another group of conveying mechanism one by one. The utility model discloses a carrying mechanism realizes one by one handover between two groups of conveying mechanism of transfer piece, and the carrying process is accurate, efficient.

Description

Technical Field

[0001] This utility model relates to the field of dental floss packaging machine technology, specifically to a dental floss transfer conveying variable pitch device used in dental floss packaging machines. Background Technology

[0002] The invention, entitled "Material Conveying Spacing Mechanism for Dental Floss Packaging Machine" (Chinese Utility Model Authorization Announcement No. CN215554516U), addresses the issue of adjusting the spacing of the filling chopsticks during dental floss packaging to meet the needs of automated bagging and dispensing. This mechanism involves two opposing first and second conveying mechanisms, with the spacing between two adjacent second positioning blocks on the second conveying mechanism being greater than the spacing between two adjacent first positioning blocks on the first conveying mechanism. When the first conveying mechanism delivers the filling chopsticks to the end, they are precisely matched to the corresponding second positioning blocks, thus increasing the spacing between the chopsticks and effectively preventing interference during dispensing, ensuring smooth dispensing by the subsequent automated dental floss bagging equipment.

[0003] However, in actual production applications, due to the cylindrical shape of the loading chopsticks, the handover process relies solely on the positioning docking of the first and second conveying mechanisms. At the moment of handover, the loading chopsticks lack sufficient constraint and guidance, making them highly susceptible to slipping off the positioning block due to factors such as unstable center of gravity, minor vibrations during transport, or inertia, resulting in derailment. This problem is particularly pronounced when production cycles are fast. Summary of the Invention

[0004] To overcome the above-mentioned defects, this utility model provides a dental floss transfer component conveying pitch-changing device, which can achieve stable and efficient transfer component conveying pitch-changing, effectively avoid derailment of the transfer component during pitch-changing, ensure the continuity and stability of dental floss packaging production, and improve production efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is to provide a dental floss transfer device with variable pitch, wherein a plurality of dental flosses are strung on the transfer device, and the transfer device includes a frame, on which a conveying mechanism and a handling mechanism are provided;

[0006] The conveying mechanism is provided in two sets, which are arranged adjacent to each other on the frame. Each set of conveying mechanisms includes two sets of material-carrying synchronous pulley assemblies arranged opposite each other on the outer sides of the frame, and a pulley drive assembly for driving the two sets of material-carrying synchronous pulley assemblies to rotate synchronously. The material-carrying synchronous belt of the material-carrying synchronous pulley assembly is provided with a plurality of positioning blocks with V-shaped grooves at equal intervals. The two ends of the transfer component rest on the V-shaped grooves of two opposite positioning blocks, respectively. The distance between adjacent positioning blocks on one set of conveying mechanisms is smaller than the distance between adjacent positioning blocks on the other set of conveying mechanisms.

[0007] The transport mechanism includes a gripper assembly disposed between the two sets of transport mechanisms for gripping transfer parts, and a transport drive assembly for driving the gripper assembly to transfer the transfer parts located on one set of transport mechanisms to the other set of transport mechanisms one by one.

[0008] As a further improvement of this utility model, the gripper assembly includes a connecting plate arranged horizontally along the width direction of the frame, and pneumatic grippers are respectively provided at both ends of the bottom of the connecting plate.

[0009] The transport drive component includes:

[0010] The conveying motor is located on the side of the frame;

[0011] The swing arm has one end connected to the output shaft of the conveying motor, and the other end is movably connected to the connecting plate via a first bearing.

[0012] The limiting synchronous pulley unit includes a positioning pulley coaxial with and fixedly mounted on the output shaft of the conveying motor, a swing wheel fixedly connected to the connecting plate, and a limiting synchronous belt wound around the positioning pulley and the swing wheel.

[0013] As a further improvement of this utility model, a movable shaft is fixedly provided at one end of the connecting plate facing the conveying drive assembly, and the movable shaft passes through the inner ring of the first bearing and is fixedly connected to the swing wheel;

[0014] The other end of the swing arm is fixedly connected to the outer ring of the first bearing.

[0015] As a further improvement of this utility model, a support frame is provided on one side of the frame, and the conveying motor is mounted on the support frame; a bearing seat is provided on the side of the support frame facing the frame, and a second bearing is provided on the bearing seat; the output shaft of the conveying motor is connected to a drive shaft through a coupling; the drive shaft passes through the inner ring of the second bearing and is fixedly connected to one end of the swing arm; and the positioning pulley is fixedly sleeved on the outer ring of the second bearing.

[0016] As a further improvement of this utility model, the transmission ratio of the positioning pulley and the swing wheel is 1:1.

[0017] As a further improvement of this utility model, each set of the material-carrying synchronous belt pulley assembly includes three conveyor pulleys arranged in a right-angled triangle, one of which is connected to the pulley drive assembly for transmission.

[0018] The pulley drive assembly includes a conveyor motor and a driven shaft that is connected to the conveyor motor via a gear pair. The driven shaft is arranged along the width of the frame, and its two axial ends extend to the two outer sides of the frame and are connected to the corresponding conveyor pulleys.

[0019] As a further improvement of this utility model, the inner side of the frame is provided with a centering mechanism that cooperates with the conveying mechanism to gather the dental floss on the transfer piece toward the center to reserve gripping space for the pneumatic gripper. The centering mechanism includes two centering plates respectively arranged close to the two inner sides of the frame, and a centering cylinder for driving the two centering plates to move closer or further apart.

[0020] As a further improvement of this utility model, the two inner sides of the frame are provided with a plurality of guide plates arranged at intervals along the conveying direction of the transfer component, and the guide plates are arranged to extend from the frame toward the wire gathering direction along the conveying direction.

[0021] The beneficial effects of this utility model are: by setting two sets of conveying mechanisms with different spacings, the transfer parts can be adjusted during the conveying process, which meets the requirements of different processes for the tooth wire spacing and improves the flexibility and adaptability of production; by using a handling mechanism, the transfer parts are transferred one by one between the two sets of conveying mechanisms. The handling process is accurate and efficient, ensuring the continuity and stability of production and improving production efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This utility model Figure 1 A diagram showing the view from below;

[0024] Figure 3 This is a schematic diagram of the handling mechanism of this utility model;

[0025] Figure 4 This is a schematic diagram of the AA and BB directions of the conveying mechanism of this utility model.

[0026] Referring to the accompanying drawings, the following explanations are provided:

[0027] 100. Transfer component; 1. Frame; 11. Support frame; 2. Conveying mechanism; 21. Material-carrying synchronous belt pulley assembly; 211. Material-carrying synchronous belt; 2111. Positioning block; 212. Conveyor pulley; 22. Pulley drive assembly; 221. Conveyor motor; 222. Gear pair; 223. Driven shaft; 3. Handling mechanism; 31. Gripper assembly; 311. Connecting plate; 312. Pneumatic gripper; 313. Movable shaft; 32. Transport drive assembly; 321. Transport motor; 3211. Coupling; 3212. Drive shaft; 322. Swing arm; 323. First bearing; 324. Limiting synchronous belt pulley unit; 3241. Positioning pulley; 3242. Swing wheel; 3243. Limiting synchronous belt; 325. Bearing housing; 326. Second bearing; 4. Centering mechanism; 41. Centering plate; 42. Centering cylinder; 43. Guide plate. Detailed Implementation

[0028] The preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] See Figures 1 to 4 The present invention provides a dental floss transfer device for conveying and changing pitch. The transfer device 100 is a long rod, and several dental flosses are strung on the transfer device 100. The conveying and changing pitch device includes a frame 1, and the frame 1 is provided with a conveying mechanism 2, a transporting mechanism 3 and a centering mechanism 4.

[0030] The conveying mechanism 2 is provided in two sets, which are arranged adjacent to each other on the frame 1. Each set of conveying mechanism 2 includes two sets of material-carrying synchronous pulley assemblies 21 arranged opposite to each other on the outer sides of the frame 1, and a pulley drive assembly 22 for driving the two sets of material-carrying synchronous pulley assemblies 21 to rotate synchronously. Multiple positioning blocks 2111 with V-shaped grooves are provided at equal intervals on the material-carrying synchronous belt 211 of the material-carrying synchronous pulley assembly 21. The two ends of the transfer piece 100 are respectively placed on the V-shaped grooves of two opposite positioning blocks 2111. The distance between adjacent positioning blocks 2111 on one set of conveying mechanism 2 is smaller than the distance between adjacent positioning blocks 2111 on the other set of conveying mechanism 2. This design realizes the variable-pitch conveying of the transfer piece.

[0031] In this embodiment, four sets of material-carrying synchronous pulley assemblies 21 are provided. These four sets are rotatably mounted on the outer sides of the frame 1 in pairs, providing a reasonable and stable layout. Each set of material-carrying synchronous pulley assemblies 21 includes three conveyor pulleys 212 arranged in a right-angled triangle. One conveyor pulley 212 is connected to the pulley drive assembly 22, providing power for the movement of the entire material-carrying synchronous belt; the other two conveyor pulleys 212 are arranged horizontally to ensure that the transfer components remain horizontal during transport. The pulley drive assembly 22 includes a conveyor motor 221 and a driven shaft 223 that is connected to the conveyor motor 221 via a gear pair 222. The driven shaft 223 is arranged along the width of the frame 1, with its two axial ends extending to the outer sides of the frame 1 and connected to the corresponding conveyor pulleys 212. Through gear transmission, precise speed control can be achieved, ensuring that the two sets of synchronous pulley assemblies in each conveying mechanism 2 rotate synchronously, thus ensuring the consistency of the movement of the two opposing material-carrying synchronous belts.

[0032] Furthermore, in this embodiment, the drives of the two sets of conveying mechanisms are set separately, so that the conveying cycle of the two sets of conveying mechanisms can be controlled independently. This allows for flexible adjustment of the spacing of the positioning blocks on the synchronous belt carrying the material according to different production needs, greatly improving the applicability and flexibility of the device. Of course, the number of conveying mechanisms can also be increased according to actual production needs, and the conveying function can be realized by simple docking to meet the needs of multi-oxidation production scenarios.

[0033] See Figure 1 , Figure 3 and Figure 4 The conveying mechanism 3 includes a gripper assembly 31 disposed between two sets of conveying mechanisms 2 for gripping the transfer piece 100, and a conveying drive assembly 32 for driving the gripper assembly 31 to transfer the transfer pieces 100 located on one set of conveying mechanisms 2 to the other set of conveying mechanisms 2 one by one.

[0034] A support frame 11 is provided on one side of the frame 1. The support frame 11 is located between the two sets of conveying mechanisms, providing a stable mounting base for the handling mechanism and suspending the gripper assembly 31 of the handling mechanism 3 above the conveying mechanism 2, ensuring the movement of the gripper assembly 31 between the two conveying mechanisms 2. The gripper assembly 31 includes a connecting plate 311 horizontally arranged along the width direction of the frame 1, with pneumatic grippers 312 symmetrically arranged at both ends of the bottom of the connecting plate 311. The pneumatic grippers can quickly and accurately grasp and release the transfer parts, improving handling efficiency. The pneumatic grippers 312 are existing conventional technologies and will not be described in detail here.

[0035] The transport drive assembly 32 is used to drive the connecting plate 311 and ensure that the connecting plate 311 with the pneumatic gripper 312 always remains in a horizontal state, thereby realizing the smooth transfer of the transfer part from one set of conveying mechanisms to another set of conveying mechanisms and realizing the variable pitch operation of the transfer part.

[0036] Specifically, the transport drive assembly 32 includes a transport motor 321, a swing arm 322, and a limiting synchronous pulley unit 324. The transport motor 321 is mounted on the support frame 11. One end of the swing arm 322 is connected to the output shaft of the transport motor 321, and the other end is movably connected to the connecting plate 311 via a first bearing 323. The limiting synchronous pulley unit 324 includes a positioning pulley 3241 coaxial with and fixedly mounted on the output shaft of the transport motor 321, a swing wheel 3242 fixedly connected to the connecting plate 311, and a limiting synchronous belt 3243 wound around the positioning pulley 3241 and the swing wheel 3242. The transmission ratio of the positioning pulley 3241 and the swing wheel 3242 is 1:1, which ensures that the two ends of the gripper assembly are at the same horizontal position, thus achieving accurate transport of the transfer parts.

[0037] A movable shaft 313 is fixedly provided at one end of the connecting plate 311 facing the conveying drive assembly 32. The movable shaft 313 passes through the inner ring of the first bearing 323 and is fixedly connected to the swing wheel 3242. The other end of the swing arm 322 is fixedly connected to the outer ring of the first bearing 323.

[0038] Therefore, when the conveying motor 321 drives the swing arm 322 to swing, the swing arm 322 drives the gripper assembly 31 connected to it to move as a whole. However, under the combined action of the first bearing 323 and the limiting synchronous pulley unit 324, the gripper assembly 31 is in an active state relative to the swing arm 322. At the same time, it can remain stable during the meshing transmission process between the teeth of the limiting synchronous pulley unit 324 and the pulley, ensuring that no swinging occurs during the movement.

[0039] In simple terms, the first bearing 323 is configured with a movable inner ring and a fixed outer ring. Therefore, when the transport motor 321 drives the swing arm 322, the swing arm 322 can drive the gripper assembly 31 to produce a linked action. During this process, due to the configuration of the first bearing 323, the gripper assembly will not swing but can maintain a stable horizontal movement. The second bearing 326 is also configured with a movable inner ring and a fixed outer ring. Therefore, the positioning pulley 3241 is not affected by the transport motor drive and always maintains a fixed position, thereby ensuring the accuracy of the gripper assembly in gripping and placing the transfer part.

[0040] Furthermore, the inner side of the frame 1 is provided with a centering mechanism 4, which cooperates with the conveying mechanism 3 to gather the dental floss on the transfer piece 100 towards the center, reserving gripping space for the pneumatic gripper 312. The centering mechanism 4 includes two centering plates 41 respectively located near the two inner sides of the frame 1, and a centering cylinder 42 for driving the two centering plates 41 to move closer or further apart. By driving the centering plates to move by the centering cylinder, the dental floss can be gathered towards the center, facilitating accurate gripping of the transfer piece by the pneumatic gripper. Both inner sides of the frame 1 are provided with multiple guide plates 43 arranged at intervals along the conveying direction of the transfer piece 100. The guide plates 43 extend from the frame 1 towards the dental floss gathering direction along the conveying direction. The guide plates can guide the dental floss towards the center, further improving the centering effect, while preventing the dental floss from moving to the ends of the transfer piece and affecting normal conveying.

[0041] In summary, the dental floss transfer device provided by this utility model achieves variable pitch conveying of the transfer piece during the conveying process by setting up two sets of conveying mechanisms with different spacings, meeting the requirements of different processes for dental floss spacing and improving production flexibility and adaptability. The handling mechanism enables the transfer of the transfer piece between the two sets of conveying mechanisms one by one, ensuring accurate and efficient handling and guaranteeing production continuity and stability. The centering mechanism can gather the dental floss on the transfer piece towards the center, reserving gripping space for the pneumatic gripper, improving the accuracy and reliability of gripping, and reducing production failures. The overall device has a reasonable structure, with tight cooperation between components, stable and reliable operation, and can effectively improve the efficiency and quality of dental floss production.

[0042] Many specific details have been set forth in the above description to provide a full understanding of this utility model. However, the above description is only a preferred embodiment of this utility model, and this utility model can be implemented in many other ways different from those described herein. Therefore, this utility model is not limited to the specific embodiments disclosed above. Furthermore, any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A dental floss transfer device for conveying variable pitch, wherein a plurality of dental flosses are strung together on a transfer device (100), the device comprising a frame (1), characterized in that: The frame (1) is provided with a conveying mechanism (2) and a handling mechanism (3); The conveying mechanism (2) is provided in two sets, and the two sets of conveying mechanisms (2) are arranged adjacent to each other on the frame (1). Each set of conveying mechanisms (2) includes two sets of material-carrying synchronous pulley assemblies (21) arranged opposite to each other on the two outer sides of the frame (1), and a pulley drive assembly (22) for driving the two sets of material-carrying synchronous pulley assemblies (21) to rotate synchronously. The material-carrying synchronous belt (211) of the material-carrying synchronous pulley assembly (21) is provided with a plurality of positioning blocks (2111) with V-shaped grooves at equal intervals. The two ends of the transfer piece (100) are respectively placed on the V-shaped grooves of the two positioning blocks (2111). The distance between adjacent positioning blocks (2111) on one set of conveying mechanisms (2) is smaller than the distance between adjacent positioning blocks (2111) on the other set of conveying mechanisms (2). The transport mechanism (3) includes a gripper assembly (31) disposed between the two sets of transport mechanisms (2) for gripping the transfer piece (100), and a transport drive assembly (32) for driving the gripper assembly (31) to transfer the transfer pieces (100) located on one set of transport mechanisms (2) one by one to the other set of transport mechanisms (2).

2. The dental floss transfer device with variable pitch according to claim 1, characterized in that: The gripper assembly (31) includes a connecting plate (311) arranged horizontally along the width direction of the frame (1), and pneumatic grippers (312) are respectively provided at both ends of the bottom of the connecting plate (311). The transport drive assembly (32) includes: A conveying motor (321) is located on the side of the frame (1); The swing arm (322) has one end connected to the output shaft of the conveying motor (321) and the other end connected to the connecting plate (311) via the first bearing (323); The limiting synchronous pulley unit (324) includes a positioning pulley (3241) coaxial with and fixedly disposed on the output shaft of the conveying motor (321), a swing wheel (3242) fixedly connected to the connecting plate (311), and a limiting synchronous belt (3243) wound around the positioning pulley (3241) and the swing wheel (3242).

3. The dental floss transfer device with variable pitch according to claim 2, characterized in that: The connecting plate (311) has a movable shaft (313) fixedly mounted on one end facing the conveying drive assembly (32), and the movable shaft (313) passes through the inner ring of the first bearing (323) and is fixedly connected to the swing wheel (3242). The other end of the swing arm (322) is fixedly connected to the outer ring of the first bearing (323).

4. The dental floss transfer device with variable pitch according to claim 3, characterized in that: A support frame (11) is provided on one side of the frame (1), and the conveying motor (321) is mounted on the support frame (11). A bearing seat (325) is provided on the side of the support frame (1) facing the frame (1), and a second bearing (326) is provided on the bearing seat (325). The output shaft of the conveying motor (321) is connected to the drive shaft (3212) through a coupling (3211). The drive shaft (3212) passes through the inner ring of the second bearing (326) and is fixedly connected to one end of the swing arm (322). The positioning pulley (3241) is fixedly sleeved on the outer ring of the second bearing (326).

5. The dental floss transfer device with variable pitch according to claim 4, characterized in that: The transmission ratio of the positioning pulley (3241) and the swing pulley (3242) is 1:

1.

6. The dental floss transfer device with variable pitch according to claim 2, characterized in that: Each of the material-carrying synchronous pulley assemblies (21) includes three conveyor pulleys (212) arranged in a right-angled triangle, one of which is connected to the pulley drive assembly (22) for transmission. The pulley drive assembly (22) includes a conveyor motor (221) and a driven shaft (223) that is connected to the conveyor motor (221) via a gear pair (222). The driven shaft (223) is arranged along the width direction of the frame (1), and its two ends in the axial direction extend to the two outer sides of the frame (1) and are connected to the corresponding conveyor pulleys (212).

7. The dental floss transfer device with variable pitch according to claim 2, characterized in that: The inner side of the frame (1) is provided with a centering mechanism (4) that cooperates with the conveying mechanism (3) to gather the dental floss on the transfer piece (100) towards the center to reserve gripping space for the pneumatic gripper (312). The centering mechanism (4) includes two centering plates (41) respectively located close to the inner sides of the frame (1), and a centering cylinder (42) for driving the two centering plates (41) to move closer or further apart.

8. The dental floss transfer device with variable pitch according to claim 7, characterized in that: The frame (1) is provided with multiple guide plates (43) arranged at intervals along the conveying direction of the transfer piece (100) on both inner sides. The guide plates (43) extend from the frame (1) toward the tooth wire gathering direction along the conveying direction.

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