Multi-station rotating disc type stock bin

Abstract

The utility model discloses a multi-station rotating disc type stock bin which comprises a base, a storage rotating disc, a servo rotating table and a lifting mechanism. A plurality of material storage stations are arranged on the material storage rotating disc and distributed in the circumferential direction of the material storage rotating disc, a material jacking through hole, a material supporting disc and a plurality of positioning rods are arranged in each material storage station, the material jacking through holes are located below the material supporting discs and vertically penetrate through the material storage rotating disc, and the positioning rods are vertically connected to the upper side of the material storage rotating disc. The material supporting disc is movably arranged on the positioning rod in a sleeving manner in the vertical direction; the servo turntable is fixedly arranged on the base and can drive the storage turntable to rotate horizontally; the lifting mechanism comprises an ejector rod, a first guide support, a lead screw and a motor, the ejector rod is arranged below the material ejecting through hole and fixedly connected with the first guide support, the motor controls the first guide support to ascend and descend through the lead screw, and the upper end of the ejector rod can penetrate through the material ejecting through hole to eject the material supporting disc. The station switching device is simple and compact in overall structure, convenient to maintain and stable and rapid in station switching.

Description

A multi-station rotary silo Technical Field

[0001] This utility model relates to the technical field of loading and unloading equipment, and in particular to a multi-station rotary hopper. Background Technology

[0002] Automated loading and unloading is an important function in automated production and a key means to improve production efficiency and reduce labor costs. The silo is the core equipment in the automated loading and unloading system used for storing, sorting, temporarily storing and supplying workpieces on demand.

[0003] Due to significant differences in the geometry and dimensions of various workpiece types, specialized hoppers need to be designed for different types of workpieces in automated production. Among the various types of workpieces, disc-shaped workpieces (bearing rings, flanges, etc.) are characterized by strong symmetry and ease of stacking, and therefore have high requirements for center positioning.

[0004] Currently, silo equipment for disc-shaped workpieces mostly uses a motor-driven circulating chain to realize the flow of pallets and workpieces within them. A lifting mechanism, including components such as a motor, synchronous belt drive assembly, lead screw, and lifting rod, is used to control the lifting of the pallets, thereby adjusting the workpiece position height in conjunction with an external robotic arm to achieve automatic loading and unloading.

[0005] However, circulating chains are prone to loosening and wear over long-term operation, requiring frequent maintenance and periodic tension adjustments, which is quite troublesome. Moreover, using a synchronous belt to drive a lead screw to control the pallet lifting increases mechanical complexity, leading to higher equipment maintenance costs and difficulties, and also occupies a large amount of space, affecting the compactness of the equipment structure. Summary of the Invention

[0006] The purpose of this utility model is to provide a multi-station rotary hopper to assist in the automatic loading and unloading of disc-shaped workpieces. The hopper has a simplified structure and is easy to maintain.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A multi-station rotary storage bin includes a base, a storage rotary table, a servo turntable, and a lifting mechanism. The storage rotary table is horizontally positioned above the base and has multiple storage stations arranged circumferentially along the rotary table. Each storage station includes a top material through-hole, a material support plate, and multiple positioning rods. The top material through-hole is located below the material support plate and vertically penetrates the rotary table. The positioning rods are vertically connected to the upper side of the rotary table, and the material support plate is movably mounted on the positioning rods in the vertical direction. The servo turntable is fixedly mounted on the base and can drive the storage rotary table to rotate horizontally.

[0009] The lifting mechanism includes a top rod, a first guide support, a lead screw, and a motor. The top rod is located below the material feeding through hole and is fixedly connected to the first guide support. The motor is fixedly mounted on the base. The motor controls the lifting of the first guide support through the lead screw, so that the upper end of the top rod passes through the material feeding through hole and pushes the material tray.

[0010] Furthermore, the motor is a hollow servo geared motor, the lead screw includes a lead screw shaft and a nut, the lead screw shaft is vertically arranged and driven by the motor, and the nut is fitted on the lead screw shaft and fixedly connected to the first guide support.

[0011] Furthermore, the lifting mechanism also includes a second guide support fixedly mounted on the base, the second guide support being located directly above the first guide support, the motor being located at the center of the second guide support, the nut being fixedly mounted at the center of the first guide support, the upper end of the lead screw shaft being driven and connected to the motor, the lower end of the lead screw shaft being movably passed through the center of the first guide support, the push rod being vertically mounted and multiple rods being evenly arranged along the circumference of the lead screw shaft, the upper end of the push rod being movably passed through the second guide support and the base, and the lower end of the push rod being fixedly connected to the first guide support.

[0012] Furthermore, a linear bearing is embedded in the second guide support, and the push rod moves through the second guide support via the linear bearing.

[0013] Preferably, the lead screw is a rolled ball screw.

[0014] Preferably, there are two or more lifting mechanisms, and each lifting mechanism corresponds to a different material storage station.

[0015] Furthermore, the material tray is provided with multiple strip-shaped guide grooves, and the material tray is fitted onto the positioning rod through the guide grooves. The guide grooves are arranged one-to-one with the positioning rods, and the guide grooves are evenly distributed along the circumference of the material tray to guide the positioning rods to converge or disperse.

[0016] This utility model has the following beneficial effects:

[0017] This silo adopts a rotary design with multiple storage stations on the storage turntable to store a large number of disc-shaped workpieces. With the help of a servo turntable to control the rotation of the storage turntable, the storage stations can be switched smoothly and quickly. The lifting mechanism pushes the material tray and adjusts the height of the material tray, which can assist the external robot arm to realize the automatic loading and unloading of workpieces. Compared with existing equipment, this silo eliminates complex components such as chains and sprockets, and the overall structure is more streamlined, compact and easy to maintain. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the structure of this utility model.

[0019] Figure 2 is a magnified schematic diagram of part A of the structure in Figure 1.

[0020] Figure 3 is a top view of the structure of this utility model.

[0021] Figure 4 is a front view of the structure of this utility model.

[0022] Figure 5 is a schematic diagram of the lifting mechanism of this utility model.

[0023] Explanation of main component symbols: 100, base; 200, storage turntable; 210, storage station; 220, top material through hole; 230, material support plate; 231, guide groove; 240, positioning rod; 300, servo turntable; 400, lifting mechanism; 410, top rod; 420, first guide support; 430, lead screw; 431, lead screw shaft; 432, nut; 440, motor; 450, second guide support; 460, linear bearing. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] As shown in Figures 1-4, this utility model discloses a multi-station rotary storage bin, including a base 100, a storage rotary table 200, a servo turntable 300, and a lifting mechanism 400. The storage rotary table 200 is horizontally positioned above the base 100, and multiple storage stations 210 are provided on the storage rotary table 200. The storage stations 210 are evenly arranged along the circumference of the storage rotary table 200, and each storage station 210 is provided with a top material through hole 220, a material support plate 230, and multiple positioning rods 240. The top material through hole 220 is located below the material support plate 230 and vertically penetrates the storage rotary table 200. The positioning rods 240 are vertically connected to the upper side of the storage rotary table 200, forming a space between the positioning rods 240 for storing disc-shaped workpieces. The material support plate 230 is movably fitted onto each positioning rod 240 in the vertical direction to support the workpiece. The servo turntable 300 is fixedly mounted on the base 100 and can drive the storage turntable 200 to rotate horizontally.

[0026] Based on the storage turntable 200, this silo has multiple storage stations 210, capable of storing a large number of disc-shaped workpieces. Controlling the rotation of the storage turntable 200 by the servo turntable 300 avoids the vibration and timing belt slippage problems inherent in chain drives, smoothly switching the storage stations 210 to their corresponding positions with high positioning accuracy, eliminating the need for secondary positioning. Furthermore, replacing complex components such as chains and sprockets with the storage turntable 200 and servo turntable 300 results in a more streamlined and compact overall structure, facilitating maintenance.

[0027] The material tray 230 has multiple strip-shaped guide grooves 231, and the material tray 230 is fitted onto the positioning rod 240 through the guide grooves 231. The guide grooves 231 are arranged one-to-one with the positioning rods 240, and are evenly distributed along the circumference of the material tray 230. Through each guide groove 231, the positioning rods 240 can be guided to converge when adjusting the positioning rods 240, thereby reducing the space between the positioning rods 240 to store smaller disc-shaped workpieces, or the positioning rods 240 can be guided to disperse, thereby increasing the space between the positioning rods 240 to store larger disc-shaped workpieces.

[0028] As shown in Figure 5, the lifting mechanism 400 includes a top rod 410, a first guide support 420, a lead screw 430, and a motor 440. The top rod 410 is located below the top material through hole 220 and is fixedly connected to the first guide support 420. The motor 440 is fixedly mounted on the base 100. The motor 440 controls the lifting and lowering of the first guide support 420 through the lead screw 430, thereby driving the top rod 410 to lift and lower. During the loading and unloading process, the upper end of the top rod 410 can move upward through the top material through hole 220 in the corresponding storage station 210 to push the material tray 230, preventing the material tray 230 from tipping over. At the same time, it can push the material tray 230 and the workpiece it supports to a certain height, so as to realize automatic loading and unloading in conjunction with the external robot to pick up and place the workpiece. When switching the storage station 210, the top rod 410 can move downward out of the top material through hole 220 so that the servo turntable 300 can drive the storage turntable 200 to rotate.

[0029] In this embodiment, there are two or more lifting mechanisms 400, and each lifting mechanism 400 corresponds to a different storage station 210, so as to simultaneously control two or more storage stations 210 to perform automatic feeding and unloading operations.

[0030] In each lifting mechanism 400, the motor 440 is a hollow servo geared motor, which is an electromechanical integrated device that integrates the hollow servo motor 440 and the reducer into one unit. It has both the high dynamic response of servo control and the torque amplification characteristics of the reducer. The lead screw 430 includes a lead screw shaft 431 and a nut 432. The lead screw shaft 431 is vertically set, and the end of the lead screw shaft 431 can be directly inserted into the hollow shaft of the motor 440 for drive connection, eliminating the need for a coupling and replacing components such as synchronous belts and synchronous pulleys to achieve transmission, saving component installation space. The nut 432 is fitted on the lead screw shaft 431 and fixedly connected to the first guide support 420. As the lead screw shaft 431 rotates, it drives the first guide support 420 to perform reciprocating linear motion in the axial direction of the lead screw shaft 431, controlling the lifting and lowering of the first guide support 420 and the push rod 410. To ensure smooth and rapid adjustment of the height of the material support plate 230, the lead screw 430 is preferably a press-rolled ball screw 430, which has good stability, strong load-bearing capacity, fast dynamic response, and high output speed.

[0031] The lifting mechanism 400 also includes a second guide support 450, which is located directly above the first guide support 420 and is fixedly mounted on the base 100. A motor 440 is positioned at the center of the second guide support 450 and is fixed to the base 100 via the second guide support 450. A nut 432 is fixedly mounted at the center of the first guide support 420. The upper end of the lead screw shaft 431 is driven and connected to the motor 440, while the lower end of the lead screw shaft 431 movably passes through the center of the first guide support 420. Multiple push rods 410 are vertically arranged and evenly distributed along the circumference of the lead screw shaft 431. The upper ends of the push rods 410 movably pass through the second guide support 450 and the base 100, while the lower ends of the push rods 410 are fixedly connected to the first guide support 420. With the support and guidance of the first guide support 420 and the second guide support 450, multiple top rods 410 are arranged around the screw 430, which can control the top rods 410 to rise and fall smoothly and push the material support plate 230 stably.

[0032] In addition, a linear bearing 460 is embedded in the second guide support 450. The linear bearing 460 is set one-to-one with the push rod 410. Each push rod 410 passes through the second guide support 450 through the corresponding linear bearing 460. The linear bearing 460 can significantly reduce the movement resistance of the push rod 410 when it is raised and lowered, ensuring that the push rod 410 can perform a smooth linear movement with high sensitivity and high precision, and further improving the stability and positional accuracy of the height adjustment of the material tray 230.

[0033] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims are within the scope of protection of the present invention.

Claims

1. A multi-station rotary hopper, characterized in that: The system includes a base, a storage turntable, a servo turntable, and a lifting mechanism. The storage turntable is horizontally positioned above the base and has multiple storage stations arranged circumferentially. Each storage station includes a top material through-hole, a material support plate, and multiple positioning rods. The top material through-hole is located below the material support plate and vertically penetrates the storage turntable. The positioning rods are vertically connected to the upper side of the storage turntable, and the material support plate is movably mounted on the positioning rods in the vertical direction. The servo turntable is fixedly mounted on the base and can drive the storage turntable to rotate horizontally. The lifting mechanism includes a top rod, a first guide support, a lead screw, and a motor. The top rod is positioned below the top material through-hole and is fixedly connected to the first guide support. The motor is fixedly mounted on the base and controls the lifting of the first guide support through the lead screw, allowing the upper end of the top rod to pass through the top material through-hole and push the material support plate.

2. The multi-station rotary silo as described in claim 1, characterized in that: The motor is a hollow servo geared motor. The lead screw includes a lead screw shaft and a nut. The lead screw shaft is vertically arranged and driven by the motor. The nut is fitted on the lead screw shaft and fixedly connected to the first guide support.

3. The multi-station rotary silo as described in claim 2, characterized in that: The lifting mechanism further includes a second guide support fixedly mounted on the base. The second guide support is located directly above the first guide support. The motor is located at the center of the second guide support. The nut is fixedly mounted at the center of the first guide support. The upper end of the lead screw is driven and connected to the motor. The lower end of the lead screw passes through the center of the first guide support. The push rod is vertically mounted and multiple rods are evenly arranged along the circumference of the lead screw. The upper end of the push rod passes through the second guide support and the base. The lower end of the push rod is fixedly connected to the first guide support.

4. The multi-station rotary silo as described in claim 3, characterized in that: The second guide support is embedded with a linear bearing, and the push rod moves through the second guide support via the linear bearing.

5. The multi-station rotary silo as described in claim 1, characterized in that: The lead screw is a press-rolled ball screw.

6. The multi-station rotary silo as described in claim 1, characterized in that: There are two or more lifting mechanisms, and each lifting mechanism corresponds to a different material storage station.

7. The multi-station rotary silo as described in claim 1, characterized in that: The material tray has multiple strip-shaped guide grooves, and the material tray is fitted onto the positioning rod through the guide grooves. The guide grooves are arranged one-to-one with the positioning rods, and the guide grooves are evenly distributed along the circumference of the material tray to guide the positioning rods to converge or disperse.

Images