Novel transposition steering device

Abstract

The utility model relates to the field of disposable hygienic product equipment, in particular to a novel transposition steering device which comprises a machine frame, a main shaft rotatably arranged on the machine frame, conveying mechanisms used for bearing objects and rotating around the main shaft, and an air distribution mechanism used for providing air pressure distribution for the conveying mechanisms. The air distribution mechanism is rotatably arranged on the rack through an air distribution rotating shaft, the air distribution rotating shaft is not coaxial with the main shaft, and the air distribution rotating shaft is driven by an air distribution driving mechanism or is in transmission connection with the main shaft through an air distribution transmission part. The technical problem that an air distribution mechanism generates more loads on a supporting shaft is solved.

Description

Technical Field

[0001] The utility model relates to the field of disposable sanitary product equipment, in particular to a novel indexing and steering device. Background Art

[0002] At present, in the production process of disposable sanitary products, an important step is to grab the products from the production line, turn them, and then input them into the production line again. For example, the device for changing the spacing between conveyed products and rotating these products disclosed in Chinese patent announcement No. CN101583549B discloses a technical solution for using multiple motors to achieve variable speed conveying of products during the conveying process.

[0003] The applicant disclosed a novel speed change device in Chinese patent publication No. CN214569357U, which includes a first drive motor, a support shaft, a track seat, a movable plate and an air distribution disk. A second drive motor is provided on the movable plate, and a first driving gear is provided on the output end of the second drive motor. A support sleeve is rotatably provided on the support shaft, a turntable is provided on the support sleeve, and an air suction port connected to the air distribution disk is provided on the turntable. A first driven gear is provided on the outer surface of the turntable, and an annular guide rail is provided on the track seat. A plurality of pick-and-place assemblies are provided on the track seat. Each of the first drive motors drives each pick-and-place assembly to slide along the annular guide rail on the track seat through a transmission assembly, and realizes the self-rotation of the pick-and-place assembly.

[0004] Current valve mechanisms, such as valve discs, are typically mounted on support shafts, enabling follow-up and synchronous rotation. However, since the turntable, which carries the goods, rotates around the support shaft at a variable speed instead of a constant speed, this approach places a significant load on the support shaft. Over extended periods of operation, this cumulative load can shorten the life of the support shaft. Utility Model Content

[0005] Therefore, in view of the above problems, the present invention proposes a novel indexing steering device, which solves the technical problem that the valve train generates a lot of load on the support shaft.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a new indexing and steering device, comprising a frame and a main shaft rotatably arranged on the frame, a conveying mechanism for carrying articles, each conveying mechanism rotates around the main shaft, and also includes a gas distribution mechanism for providing air pressure adjustment to the conveying mechanism, the gas distribution mechanism is rotatably arranged on the frame through a gas distribution shaft, the gas distribution shaft is not coaxial with the main shaft, the gas distribution shaft is driven by a gas distribution drive mechanism, or the gas distribution shaft is connected to the main shaft through a gas distribution transmission member.

[0007] Furthermore, the frame is provided with a plurality of first driving mechanisms for driving each conveying mechanism, so as to realize independent rotation of each conveying mechanism around the main axis.

[0008] Furthermore, the conveying mechanism includes a supporting mechanism that rotates around a main axis, a carrying mechanism for carrying articles, and a second driving mechanism arranged on the supporting mechanism. The carrying mechanism can be rotatably arranged on the second driving mechanism or the supporting mechanism. The carrying mechanism is controlled by the second driving mechanism to rotate independently and is not controlled by the rotation of the first driving mechanism and / or the main axis.

[0009] Furthermore, the second driving mechanism is a rotating platform, and the supporting mechanism realizes controlled rotation on the rotating platform.

[0010] Furthermore, the second driving mechanism is a servo motor provided on the supporting mechanism, and the carrying mechanism is rotatably provided on the supporting mechanism to realize controlled rotation.

[0011] Furthermore, a rotating slip ring is provided on the main shaft, and each second driving mechanism is electrically connected by connecting the rotating slip ring.

[0012] Furthermore, a constant speed motor is provided on the frame, and the constant speed motor is connected to the main shaft transmission. The first driving mechanism includes a servo motor and a planetary reducer provided on the output shaft of the servo motor. The planetary reducer has an output shaft and a planetary carrier. The conveying mechanism is connected to the output shaft transmission to realize rotation around the main shaft. A plurality of transmission wheels are provided on the main shaft, and each transmission wheel is respectively connected to each planetary carrier transmission. When the constant speed motor rotates, the conveying mechanism is controlled by the constant speed motor, or when the first driving mechanism rotates, the conveying mechanism is controlled by the first driving mechanism, or when the constant speed motor and the first driving mechanism rotate, the conveying mechanism is controlled by the first driving mechanism and the constant speed motor.

[0013] Furthermore, the support mechanism includes a first bracket rotatably arranged on the main shaft, a second bracket rotatably arranged on the main shaft and a supporting cross frame, the supporting cross frame is arranged across the upper ends of the first bracket and the second bracket, and the second bracket is transmission-connected to the first driving mechanism.

[0014] Furthermore, the supporting cross frame or the second driving mechanism is provided with a pneumatic connection structure for providing negative pressure to the bearing mechanism, and each pneumatic connection structure is connected to the air distribution mechanism.

[0015] By adopting the above technical solution, the beneficial effects of the utility model are:

[0016] 1. The valve mechanism in this solution is arranged on the frame, which changes the conventional practice of the existing indexing device, thereby effectively reducing the load on the main shaft. This load is likely to damage the main shaft after a long time, resulting in a reduction in the life of the main shaft.

[0017] 2. The provision of multiple first drive mechanisms is used to achieve independent speed-changing motion of the conveying mechanisms, while the provision of second drive mechanisms is used to achieve independent rotation of the carrying mechanisms.

[0018] 3. The use of the rotating platform has better integration performance, which can effectively control the weight and achieve smooth transportation. However, the use of servo motors also requires related transmission components, such as gear sets. Both methods can achieve independent rotation of the load-bearing mechanism.

[0019] 4. A rotating slip ring is provided, and a groove or hole for accommodating the cable can be provided on the main shaft, so that the cable of the second drive mechanism is connected to the rotating slip ring through the groove or hole, thereby achieving electrical connection with the external power supply, thereby ensuring the stability of the power supply of the second drive mechanism.

[0020] 5. The setting of the constant speed motor can be used to cooperate with the first drive mechanism to realize the control of the conveying mechanism, avoiding the problems of increased weight and increased inertia due to the increased weight of the carrying mechanism. At this time, each conveying mechanism is no longer in a completely independent operation state, but is in a controllable variable speed state. The constant speed motor can be controlled in coordination to realize states such as the first drive mechanism driving alone, the constant speed motor driving alone, and the first drive mechanism and the constant speed motor driving in coordination. Among them, the planetary reducer plays a more critical role, which realizes the possibility of various coordination states between the first drive mechanism and the constant speed motor, thereby realizing the unity of individual controllability and overall controllability of the conveying mechanism.

[0021] 6. The setting of the support mechanism is not much different from the existing support mechanism. The main difference is that there is no support from the cam mechanism, and due to the increase in weight, the strength of the support mechanism needs to be increased. It can be improved by adding ribs, adding reinforcements, changing the material properties, etc.

[0022] 7. The pneumatic connection structure can be set on the rotating platform or on the supporting crossbeam of the load-bearing mechanism to realize the access of external pipelines. Moreover, when the conveying mechanism rotates around the main axis, these pipelines can also rotate with it, such as the commonly used gas distribution plate structure in the existing market. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the present utility model.

[0024] Figure 2 It is a structural diagram of the coordination between the valve mechanism and the main shaft.

[0025] Figure 3 It is a structural diagram showing the coordination between the valve mechanism and the main shaft from another perspective.

[0026] Figure 4 It is a structural diagram of the conveying mechanism.

[0027] Figure 5 It is a structural diagram of the cooperation between the first drive mechanism, the constant speed motor and the main shaft.

[0028] Reference numerals:

[0029] 1. Main shaft; 11. Transmission wheel; 12. Rotating slip ring; 2. Conveying mechanism; 21. Support mechanism; 211. First bracket; 212. Second bracket; 213. Support cross frame; 22. Carrying mechanism; 23. Second drive mechanism; 24. Pneumatic connection structure; 3. First drive mechanism; 31. Servo motor; 32. Planetary reducer; 321. Output shaft; 322. Planetary carrier; 4. Constant speed motor; 5. Gas distribution mechanism; 51. Gas distribution shaft; 52. Gas distribution drive mechanism; 53. Gas distribution transmission component; 54. Gas distribution hose. DETAILED DESCRIPTION

[0030] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0031] refer to Figures 1 to 5 This embodiment provides a new type of indexing and steering device, including a frame and a main shaft 1 rotatably arranged on the frame, a conveying mechanism 5 for carrying articles, each conveying mechanism 2 rotates around the main shaft 1, and also includes a gas distribution mechanism 5 for providing air pressure adjustment to the conveying mechanism 2. The gas distribution mechanism 5 is rotatably arranged on the frame through a gas distribution shaft 51. The gas distribution shaft 51 is not coaxial with the main shaft 1, and the gas distribution shaft 51 is driven by a gas distribution drive mechanism 52.

[0032] The aforementioned air distribution mechanism 5 is conventional in the art and is primarily used to provide positive or negative pressure to the conveying mechanism 2. The air distribution mechanism 5 and the conveying mechanism 2 are connected by an air distribution hose 54. The air distribution drive mechanism 52 can be a conventional servo motor. Furthermore, the air distribution shaft 51 can be connected to the main shaft 1 via an air distribution transmission member 53. The air distribution transmission member 53 can utilize conventional gears or gear sets, or other conventional means such as belts or synchronous belts.

[0033] In addition, it also includes two or more first driving mechanisms 3 that drive the conveying mechanism 2 to rotate around the main shaft 1. The conveying mechanism 2 includes a supporting mechanism 21 that rotates around the main shaft 1, a carrying mechanism 22 for carrying articles, and a second driving mechanism 23 arranged on the supporting mechanism 21. The carrying mechanism 22 is rotatably arranged on the second driving mechanism 23 or the supporting mechanism 21. The carrying mechanism 22 is controlled by the second driving mechanism 23 to rotate independently and is not controlled by the rotation of the first driving mechanism 3 and / or the main shaft 1.

[0034] The second drive mechanism 23 is a rotating platform, on which the support mechanism 22 is controlled to rotate. A rotating platform is a commonly used component in the field and is commercially available. It is a special rotating device with a hollow structure, high load capacity, high rotational accuracy, and wide adaptability. It is used to provide the power for the rotation of the support mechanism 22. Of course, while a rotating platform is a preferred choice, other mechanisms can also be used instead. For example, the second drive mechanism 23 can also be a servo motor 31 mounted on the support mechanism 21, and the support mechanism 22 can be rotatably mounted on the support mechanism 21 to achieve controlled rotation.

[0035] It also includes a constant speed motor 4, which is transmission-connected to the main shaft 1. The first drive mechanism 3 includes a servo motor 31 and a planetary reducer 32 provided on the output shaft 321 of the servo motor 31. The planetary reducer 32 has an output shaft 321 and a planetary carrier 322. The conveying mechanism 2 is transmission-connected to the output shaft 321 to rotate around the main shaft 1. A plurality of transmission wheels 11 are provided on the main shaft 1, and each transmission wheel 11 is transmission-connected to each planetary carrier 322. When the constant speed motor 4 rotates, the conveying mechanism 2 is controlled by the constant speed motor 4, or when the first drive mechanism 3 rotates, the conveying mechanism 2 is controlled by the first drive mechanism 3, or when the constant speed motor 4 and the first drive mechanism 3 rotate, the conveying mechanism 2 is controlled by the first drive mechanism 3 and the constant speed motor 4.

[0036] The constant speed motor 4 and the first drive mechanism 3 can both be ordinary motors, preferably a servo motor 31. The planetary reducer 32 is a conventional planetary reducer 32, and the planetary carrier 322 has an outer gear ring, thereby achieving a transmission with the transmission wheel 11.

[0037] The support mechanism 21 includes a first bracket 211 rotatably mounted on the main shaft 1, a second bracket 212 rotatably mounted on the main shaft 1, and a support crossbeam 213. The support crossbeam 213 spans the upper ends of the first bracket 211 and the second bracket 212. The second bracket 212 is transmission-connected to the first drive mechanism 3. A pneumatic connection structure 24 for providing negative pressure to the support mechanism 22 is provided on the support crossbeam 213 or the second drive mechanism 23.

[0038] The pneumatic connection structure 24 is an annular cavity that communicates with the hollow chamber of the support mechanism 22 and forms a seal. This structure is conventional in the art. When implementing transmission, rotational stability can be achieved by rotating the first or second bracket around the main axis, or around other rotating components concentric with the main axis. This structure has been disclosed in the prior art, such as the speed change device disclosed in Chinese Patent Application No. CN202120565679.4 and the new high-speed electronic speed change device disclosed in CN202310157315.6.

[0039] The main shaft 1 is provided with a rotating slip ring 12 , and each second driving mechanism 23 is electrically connected by connecting to the rotating slip ring 12 .

[0040] The rotating slip ring 12 is a conventional component in this field, which mainly provides electrical connection for rotating components.

[0041] The main change of the above structure is that the original cam structure is removed and the second driving mechanism is used to drive the movement of the carrying mechanism, and the settings of the rotating slip ring and the constant speed motor are changed accordingly.

[0042] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the form and details of the present invention without departing from the spirit and scope of the present invention as defined by the appended claims, and all of these changes are within the scope of protection of the present invention.

Claims

1. A novel indexing and steering device, comprising a frame, a main shaft rotatably mounted on the frame, and a conveying mechanism for carrying articles, wherein each conveying mechanism rotates around the main shaft, and is characterized in that: It also includes an air distribution mechanism for providing air pressure adjustment to the conveying mechanism. The air distribution mechanism is rotatably arranged on the frame through an air distribution shaft. The air distribution shaft is not coaxial with the main shaft. The air distribution shaft is driven by an air distribution drive mechanism, or the air distribution shaft is connected to the main shaft through an air distribution transmission member.

2. A novel indexing and steering device according to claim 1, characterized in that: The frame is provided with a plurality of first driving mechanisms for driving the conveying mechanisms, so as to realize the independent rotation of the conveying mechanisms around the main axis.

3. A novel indexing and steering device according to claim 2, characterized in that: The conveying mechanism includes a supporting mechanism that rotates around a main shaft, a carrying mechanism for carrying articles, and a second driving mechanism arranged on the supporting mechanism. The carrying mechanism is rotatably arranged on the second driving mechanism or the supporting mechanism. The carrying mechanism is controlled by the second driving mechanism to rotate independently and is not controlled by the rotation of the first driving mechanism and / or the main shaft.

4. A novel indexing and steering device according to claim 3, characterized in that: The second driving mechanism is a rotating platform, and the supporting mechanism realizes controlled rotation on the rotating platform.

5. A novel indexing and steering device according to claim 3, characterized in that: The second driving mechanism is a servo motor provided on the supporting mechanism, and the carrying mechanism is rotatably provided on the supporting mechanism to realize controlled rotation.

6. A novel indexing and steering device according to claim 3, characterized in that: The main shaft is provided with a rotating slip ring, and each second driving mechanism is electrically connected by connecting the rotating slip ring.

7. A novel indexing and steering device according to claim 2, characterized in that: A constant speed motor is provided on the frame, and the constant speed motor is connected to the main shaft transmission. The first drive mechanism includes a servo motor and a planetary reducer provided on the output shaft of the servo motor. The planetary reducer has an output shaft and a planetary carrier. The conveying mechanism is connected to the output shaft transmission to realize rotation around the main shaft. A plurality of transmission wheels are provided on the main shaft, and each transmission wheel is respectively connected to each planetary carrier transmission. When the constant speed motor rotates, the conveying mechanism is controlled by the constant speed motor, or when the first drive mechanism rotates, the conveying mechanism is controlled by the first drive mechanism, or when the constant speed motor and the first drive mechanism rotate, the conveying mechanism is controlled by the first drive mechanism and the constant speed motor.

8. The novel indexing and steering device according to claim 3 is characterized in that: The support mechanism includes a first bracket rotatably arranged on the main shaft, a second bracket rotatably arranged on the main shaft and a supporting cross frame, the supporting cross frame is arranged across the upper ends of the first bracket and the second bracket, and the second bracket is transmission-connected to the first driving mechanism.

9. A novel indexing and steering device according to claim 8, characterized in that: The supporting cross frame or the second driving mechanism is provided with a pneumatic connection structure for providing negative pressure to the bearing mechanism, and each pneumatic connection structure is connected to the gas distribution mechanism.

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