Stacker for packing bags of refractory powder for the inner lining of intermediate frequency furnaces
By designing a servo motor-driven gripper mechanism, using fork-shaped grippers and adjustable clamping plates, the problems of unstable gripping and poor adaptability of existing palletizers for soft packaging bags have been solved, achieving stable gripping and palletizing effect that adapts to multiple sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-07-14
AI Technical Summary
Existing palletizers have difficulty effectively clamping soft refractory lining powder packaging bags for medium-frequency furnaces and cannot accommodate packaging bags of different sizes.
A gripper mechanism driven by a servo motor was designed. It adopts a fork-shaped gripper arm and an adjustable clamping plate. The opening and closing of the gripper is controlled by a cylinder. Combined with the drive of a servo motor and a stepper motor, it can stably grip and stack packaging bags of different sizes.
It achieves stable clamping of soft packaging bags, preventing them from falling, and can adapt to packaging bags of various sizes, thus improving palletizing efficiency.
Smart Images

Figure CN224492821U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refractory material production technology, specifically a palletizer for packaging bags of refractory lining powder for medium frequency furnaces. Background Technology
[0002] Medium-frequency furnaces require a large amount of refractory lining. Some refractory lining manufacturers package the refractory lining powder in bags and ship it to users. At the user's location, it undergoes certain processing to form the furnace lining. During production, palletizers are needed to neatly stack the finished product bags off the production line. Existing palletizers have the following problems: 1. The packaging bags have a certain degree of flexibility, and the grippers cannot hold them tightly enough, making them prone to falling off; 2. Companies may use different sized packaging bags for different product models, and the existing grippers cannot accommodate multiple sizes of packaging bags. Summary of the Invention
[0003] The purpose of this invention is to solve the problems existing in the prior art and to provide a palletizer for packaging bags of refractory lining powder for medium frequency furnaces.
[0004] The specific solution of this utility model is as follows: a palletizer for packaging bags of refractory lining powder for medium frequency furnaces, including a base, a column rotatably connected to the base, a lifting rail on one side of the column, a crossbeam mounted on the lifting rail, a gripper mechanism mounted at the bottom of the crossbeam, a linear rail arranged along the length direction inside the crossbeam, a slide mounted on the linear rail, a linear drive mechanism connected to the slide at one end of the linear rail, a rotary drive mechanism mounted on the slide, a downwardly extending rotating shaft of the rotary drive mechanism, the gripper mechanism connected to the rotating shaft, the gripper mechanism including a fixed bracket A, two sets of gripper assemblies mounted at the bottom of the fixed bracket A, each set of gripper assemblies including a bracket B, a fork-shaped gripper arm rotatably connected to each end of the bracket B, two cylinders mounted at the bottom of the bracket B, one end of the two cylinders rotatably connected to the bracket B, and the other end rotatably connected to the two fork-shaped gripper arms respectively.
[0005] Furthermore, the lower end of the fork-shaped clamping arm is provided with an inwardly bent support portion.
[0006] Furthermore, each fork-shaped clamping arm is equipped with an adjustable clamping plate, on which several screws are fixedly connected. The fork-shaped clamping arm has a corresponding insertion hole for each screw, through which the screw passes. Locking nuts are installed on both sides of the insertion hole.
[0007] Furthermore, the linear drive mechanism includes a servo motor, the output end of which is equipped with a lead screw, which is arranged parallel to the linear track and is threadedly connected to the slide block.
[0008] Furthermore, the rotary drive mechanism employs a servo motor or a stepper motor, and an angular displacement sensor is mounted on the rotating shaft, with the angular displacement sensor connected to the rotary drive mechanism via a signal connection.
[0009] This utility model has the following advantages: it is used for packaging bags of refractory lining powder for medium-frequency furnaces with a certain degree of softness, and is not easy to fall off during use; it can adapt to packaging bags of various sizes. Attached Figure Description
[0010] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;
[0011] Figure 2 This is a perspective view of the gripper mechanism of this utility model;
[0012] Figure 3 yes Figure 2 The main view;
[0013] Figure 4 yes Figure 3 Top view;
[0014] Figure 5 yes Figure 4 AA view;
[0015] Figure 6 yes Figure 5 Enlarged view of point V;
[0016] In the diagram: 1. Base; 2. Column; 3. Crossbeam; 4. Linear rail; 5. Linear drive mechanism; 6. Slide; 7. Gripper mechanism; 71. Bracket A; 72. Bracket B; 73. Fork-shaped gripper arm; 731. Support part; 74. Cylinder; 75. Adjustable clamping plate; 76. Screw; 8. Rotary drive mechanism. Detailed Implementation
[0017] See Figure 1-6This embodiment is a palletizer for packaging bags of refractory lining powder for medium frequency furnaces. It includes a base 1, a column 2 rotatably connected to the base 1, a lifting rail on one side of the column 2, a crossbeam 3 mounted on the lifting rail, a gripper mechanism 7 mounted at the bottom of the crossbeam 3, a linear rail 4 arranged along the length direction inside the crossbeam 3, a slide 6 mounted on the linear rail 4, a linear drive mechanism 5 connected to the slide 6 at one end of the linear rail 4, a rotary drive mechanism 8 mounted on the slide 6, and a downwardly extending rotating shaft provided by the rotary drive mechanism 8. The gripper mechanism 7 is connected to the rotating shaft. The gripper mechanism 7 includes a fixed bracket A71, two sets of gripper assemblies mounted at the bottom of the fixed bracket A71, each set of gripper assemblies including a bracket B72, a fork-shaped gripper arm 73 rotatably connected to each end of the bracket B72, and two cylinders 74 mounted at the bottom of the bracket B72. One end of the two cylinders 74 is rotatably connected to the bracket B72, and the other end is rotatably connected to the two fork-shaped gripper arms 73 respectively. Furthermore, the lower end of the fork-shaped clamping arm 73 is provided with an inwardly bent support portion 731. This support portion 731 can serve as a bottom support for the material bag, preventing the material bag from falling due to soft deformation. This utility model uses a fork-shaped clamping arm 73 to cooperate with the roller conveyor for conveying the material bag. The fork-shaped clamping arm 73 can pass through the gap between the rollers, allowing the support portion 731 to be lifted upward from below the material bag, avoiding damage to the material bag. Furthermore, each fork-shaped clamping arm 73 is equipped with an adjustable clamping plate 75, and several screws 76 are fixedly connected to the adjustable clamping plate 75. The fork-shaped clamping arm 73 is provided with insertion holes corresponding to each screw 76, and the screws 76 pass through the corresponding insertion holes. Locking nuts are installed on both sides of the insertion holes. Furthermore, the linear drive mechanism 5 includes a servo motor, and the output end of the servo motor is equipped with a lead screw. The lead screw is arranged parallel to the linear track 4, and the lead screw is threadedly connected to the slide block 6. Furthermore, the rotary drive mechanism 8 employs a servo motor or a stepper motor, and an angular displacement sensor is mounted on the rotating shaft, which is connected to the rotary drive mechanism 8 via a signal. During operation, the column 2 rotates, driving the crossbeam 3. The crossbeam 3 then drives the gripper mechanism 7 to move back and forth between the material picking position and the stacking position. Before picking up the material, the two sets of fork-shaped grippers 73 of the gripper mechanism 7 are opened by a cylinder 74. During picking up the material, the crossbeam 3 descends along the lifting track to the height of the material bag. Then, the gripper mechanism 7, through the action of the cylinder 74, drives the two sets of fork-shaped grippers 73 to retract towards the center, thus gripping the material bag. When the fork-shaped grippers 73 retract, the bottom support 731 holds the material bag, providing effective support and preventing accidental slippage during movement. Then, the crossbeam 3 rises a certain distance along the lifting track, causing the gripper mechanism 7 and the material bag to detach from the material bag conveying mechanism. Subsequently, the column 2 rotates, causing the gripper mechanism 7 to move the material bag to the stacking position, where the gripper mechanism 7 releases the material bag for stacking. During the stacking process, the gripper mechanism 7 is controlled to move laterally along the straight track 4 according to the actual stacked bag position, or the gripper mechanism 7 is driven to rotate by the rotary drive mechanism 8.This invention features an adjustable clamping plate 75 connected to a fork-shaped clamping arm 73 via several screws 76 and a locking nut. The relative distance between the adjustable clamping plate 75 and the fork-shaped clamping arm 73 is adjusted by changing the position of the locking nut, thus adapting to the size of the material bag. When the material bag size is small, the distance between the adjustable clamping plate 75 and the fork-shaped clamping arm 73 is increased; when the material bag size is small, the distance between the adjustable clamping plates 75 and the fork-shaped clamping arm 73 is decreased, ensuring that the distance between the adjustable clamping plates 75 on both sides of the fork-shaped clamping arm 73 is adapted to the width of the material bag.
Claims
1. A palletizer for packaging bags of refractory lining powder for medium-frequency furnaces, comprising a base, a column rotatably connected to the base, a lifting rail on one side of the column, a crossbeam mounted on the lifting rail, and a gripper mechanism mounted at the bottom of the crossbeam, characterized in that: The crossbeam contains a linear track arranged along its length. A slide is mounted on the linear track. A linear drive mechanism connected to the slide is mounted at one end of the linear track. A rotary drive mechanism is mounted on the slide. The rotary drive mechanism has a downwardly extending shaft. The gripper mechanism is connected to the shaft. The gripper mechanism includes a fixed bracket A. Two sets of gripper assemblies are mounted at the bottom of the fixed bracket A. Each set of gripper assemblies includes a bracket B. A fork-shaped gripper arm is rotatably connected to each end of the bracket B. Two cylinders are mounted at the bottom of the bracket B. One end of each cylinder is rotatably connected to the bracket B, and the other end is rotatably connected to the two fork-shaped grippers respectively.
2. The palletizer for packaging bags of refractory lining powder for medium-frequency furnaces according to claim 1, characterized in that: The lower end of the fork-shaped clamping arm is provided with an inwardly bent support.
3. The palletizer for packaging bags of refractory lining powder for medium-frequency furnaces according to claim 2, characterized in that: Each fork-shaped clamping arm is equipped with an adjustable clamping plate, and several screws are fixedly connected to the adjustable clamping plate. The fork-shaped clamping arm has a corresponding insertion hole for each screw, and the screw passes through the corresponding insertion hole. Locking nuts are installed on both sides of the insertion hole.
4. The palletizer for packaging bags of refractory lining powder for medium-frequency furnaces according to claim 1, characterized in that: The linear drive mechanism includes a servo motor, the output end of which is equipped with a lead screw. The lead screw is arranged parallel to the linear track and is threadedly connected to the slide block.
5. The palletizer for packaging bags of refractory lining powder for medium-frequency furnaces according to claim 1, characterized in that: The rotary drive mechanism uses a servo motor or a stepper motor, and an angular displacement sensor is mounted on the rotating shaft. The angular displacement sensor is connected to the rotary drive mechanism via a signal connection.