Novel automatic real-time tensioning deviation rectifying device
By using an automatic real-time tensioning and correction device, which combines a servo linear motor and limit switches, the automatic tensioning and correction of the conveyor belt in high-temperature environments is achieved, solving the problem of conveyor belt deviation and improving the stability and convenience of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 苏州工业园区吴中电炉制造有限公司
- Filing Date
- 2025-06-06
- Publication Date
- 2026-04-21
AI Technical Summary
In existing technologies, the conveyor belt may deviate due to tensile deformation and uneven load in high-temperature environments. Furthermore, existing correction methods lack automation and real-time performance, requiring separate tensioning and correction, which is inconvenient to operate.
An automatic real-time tensioning and correction device is designed, which uses a servo linear motor push rod and limit switch to achieve automatic tensioning and correction of the conveyor belt. The offset is monitored in real time by roller plunger type and rocker arm type limit switch, and the servo linear motor automatically adjusts the position of the idler roller to keep the conveyor belt in the middle position.
It achieves automatic tensioning and deviation correction of the conveyor belt in high-temperature environments, improving operational stability and reliability, eliminating the need for frequent manual adjustments, and enhancing the convenience and real-time performance of operation.
Smart Images

Figure CN224146885U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tensioning and correction technology, and in particular to a novel automatic real-time tensioning and correction device. Background Technology
[0002] Because the conveyor belt operates under load in the high-temperature environment inside the heating furnace, the stretching deformation of the conveyor belt in the longitudinal direction is very serious, and the conveyor belt becomes longer and looser. In addition, due to the uneven load on the conveyor belt in the transverse direction, or the misalignment of the upper support surface of the idler roller, the tension on both sides of the conveyor belt is inconsistent, which causes the conveyor belt to run off-track.
[0003] Currently, most of the corrective methods rely on operators manually or pneumatically adjusting the sliding bearing slide after detecting deviation. This results in poor timeliness and automation. While there are automatic corrective methods, they do not adjust the foremost idler roller. Tensioning and correction must be performed separately, which is not very effective or convenient. Therefore, a new type of automatic real-time tensioning and correction device is needed to solve the above problems.
[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0005] The purpose of this invention is to provide a novel automatic real-time tensioning and correction device to solve the above-mentioned problems.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a novel automatic real-time tensioning and correction device, comprising:
[0007] Feeding platform support, wherein an automatic real-time tensioning and correction mechanism is provided on the feeding platform support;
[0008] The automatic real-time tensioning and correction mechanism includes a front idler roller, a slide bearing fixing seat, a slide bearing slide, a servo linear motor push rod, a servo linear motor, a roller plunger type limit switch, and a rocker arm type limit switch;
[0009] The slide bearing mounting base is fixedly installed on the feed table bracket, the slide bearing slide is slidably installed on the slide bearing mounting base, the servo linear motor is fixedly installed on the feed table bracket, the servo linear motor push rod is fixedly connected to the slide bearing slide, and the servo linear motor push rod is in contact with the rocker arm type limit switch.
[0010] A further feature of this invention is that a mesh belt is wound around the front idler roller.
[0011] A further feature of this invention is that a front limit switch bracket is fixedly mounted on the roller plunger type limit switch, and the front limit switch bracket is fixedly installed on the inner side of the feed table bracket.
[0012] The roller plunger type limit switch is assembled by adopting the above technical solution.
[0013] A further feature of this invention is that a rear limit switch bracket is fixedly mounted on the rocker arm type limit switch, and the rear limit switch bracket is fixedly installed on the outside of the feed table bracket.
[0014] A further feature of this invention is that a counterweight device is vertically slidably mounted on the feed platform support.
[0015] By adopting the above technical solution, the auxiliary mesh belt can be kept taut.
[0016] A further feature of this invention is that the straight-line distance between the edge of the mesh belt and the roller plunger type limit switch is 10mm.
[0017] The beneficial effects of this utility model are:
[0018] This invention utilizes an automatic real-time tensioning and correction mechanism. By using a rocker-type limit switch that contacts the rear end of a servo linear motor push rod and presets the stroke, the conveyor belt can be automatically kept taut throughout operation, eliminating the need for frequent manual adjustments. A roller plunger-type limit switch monitors the conveyor belt's deviation in real time. When the deviation exceeds a set value (greater than 10mm and between 11-15mm), the roller plunger-type limit switches on both sides respond, controlling the forward and backward movement of the servo linear motor push rod to automatically adjust the positions of the two sides of the front idler roller, causing the conveyor belt to slowly shift to the opposite side until it returns to the center position of the front idler roller. This achieves precise automatic correction without manual intervention. By setting the position of the roller plunger-type limit switch and the swing angle of the rocker-type limit switch, the stroke of the servo linear motor push rod is determined, enabling real-time monitoring and control of the conveyor belt's operating status, thus improving the stability and reliability of the conveyor belt's operation. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of a novel automatic real-time tensioning and correction device proposed in this utility model.
[0021] Figure 2This is a partial structural schematic diagram of a novel automatic real-time tensioning and correction device proposed in this utility model.
[0022] In the diagram, 1. Mesh belt; 2. Front idler roller; 3. Slide bearing mounting base; 4. Slide bearing slide; 5. Servo linear motor push rod; 6. Servo linear motor; 7. Roller plunger type limit switch; 8. Swing rod type limit switch; 9. Front limit switch bracket; 10. Rear limit switch bracket; 11. Feeding table bracket; 12. Counterweight device. Detailed Implementation
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.
[0024] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0025] See Figure 1 and Figure 2 This utility model provides a novel automatic real-time tensioning and correction device, comprising:
[0026] The feeding platform support 11 is equipped with an automatic real-time tensioning and correction mechanism.
[0027] The automatic real-time tensioning and correction mechanism includes a front idler roller 2, a slide bearing fixing seat 3, a slide bearing slide 4, a servo linear motor push rod 5, a servo linear motor 6, a roller plunger type limit switch 7, and a rocker arm type limit switch 8;
[0028] The slide bearing mounting base 3 is fixedly installed on the feed table bracket 11, the slide bearing slide 4 is slidably installed on the slide bearing mounting base 3, the servo linear motor 6 is fixedly installed on the feed table bracket 11, the servo linear motor push rod 5 is fixedly connected to the slide bearing slide 4, and the servo linear motor push rod 5 is in contact with the rocker arm type limit switch 8.
[0029] Through the aforementioned automatic real-time tensioning and correction mechanism, the rocker arm type limit switch 8 is installed at the rear end of the servo linear motor push rod 5, directly contacting the rear end of the servo linear motor push rod 5, and is preset with a certain stroke, so that the conveyor belt 1 is always in a tensioned state during operation. The roller plunger type limit switch 7 is set on both sides of the conveyor belt 1 in front of the front idler roller 2, not in contact with the edge of the conveyor belt 1, and with a distance of 10mm. When the conveyor belt 1 deviates to one side by more than 10mm, the conveyor belt 1 on this side contacts the roller plunger type limit switch 7 on this side. If the deviation continues and reaches between 11 and 15mm, the roller plunger type limit switches 7 on both sides respond, and the servo linear motor 6 on this side causes the servo linear motor push rod 5 on this side to retract, and the servo linear motor push rod 5 on the opposite side... Machine 6 moves the opposite servo linear motor push rod 5 forward, causing the conveyor belt 1 to slowly shift to the opposite side. Since the swing arm type limit switch 8 at the rear end of the servo linear motor push rod 5 has a preset stroke, the servo linear motor push rod 5 only moves forward and backward within the set stroke range. When the conveyor belt 1 moves back to the middle position of the front idler roller 2, the stroke of the servo linear motor push rod 5 has reached the set value, triggering a stop command. The servo linear motor 6 stops operating, and the conveyor belt 1 returns to the middle state for normal operation. When the position of the roller plunger type limit switch 7 and the swing angle of the swing arm type limit switch 8 are set, the stroke of the servo linear motor push rod 5 is also set. This allows for real-time monitoring and control of the operating status of the conveyor belt 1 without manual intervention, automatically tensioning and correcting the belt.
[0030] Specifically, a mesh belt 1 is wound around the front idler roller 2. It should be noted that the rotation of the front idler roller 2 can drive the mesh belt 1.
[0031] Specifically, a front limit switch bracket 9 is fixedly installed on the roller plunger type limit switch 7, and the front limit switch bracket 9 is fixedly installed on the inner side of the feed table bracket 11. A rear limit switch bracket 10 is fixedly installed on the rocker arm type limit switch 8, and the rear limit switch bracket 10 is fixedly installed on the outer side of the feed table bracket 11. It should be noted that this allows the roller plunger type limit switch 7 and the rocker arm type limit switch 8 to be assembled.
[0032] Specifically, a counterweight device 12 is vertically slidably mounted on the feed platform bracket 11. It should be noted that the counterweight device 12 is connected to the lower roller on the mesh belt 1 through a bearing seat. The counterweight device 12 generates a certain pulling force through its own weight, which pulls down the lower roller and helps the mesh belt 1 maintain tension.
[0033] Specifically, the straight-line distance between the edge of the conveyor belt 1 and the roller plunger type limit switch 7 is 10mm. It should be noted that the roller plunger type limit switch 7 is used to measure and control the offset distance of the conveyor belt 1.
[0034] Working principle:
[0035] S1: The front idler roller 2 is mounted on the slide bearing slide 4. The slide bearing slide 4 can slide on the slide bearing fixed seat 3. The servo linear motor push rod 5 is connected to the slide bearing slide 4. The swing rod type limit switch 8 is mounted on the outside of the feed table bracket 11 through the rear limit switch bracket 10, and contacts the rear end of the servo linear motor push rod 5, and is preset with a certain stroke. The roller plunger type limit switch 7 is mounted on the inside of the feed table bracket 11 through the front limit switch bracket 9, located on both sides of the front mesh belt 1 under the front idler roller 2, 10mm away from the edge of the mesh belt 1. The mesh belt 1 is wound on the front idler roller 2. The feed table bracket 11 is equipped with a counterweight device 12 to ensure stability. In the initial state, the mesh belt 1 is running normally and each component is in a relatively stable position.
[0036] S2: The servo linear motor 6 pushes the slide block bearing slide block 4 through the servo linear motor push rod 5, thereby driving the front idler roller 2 to move and tension the mesh belt 1. Since the swing arm type limit switch 8 is in contact with the rear end of the servo linear motor push rod 5 and has a preset stroke, when the servo linear motor 6 pushes the servo linear motor push rod 5 to make the mesh belt 1 reach a suitable tension, the servo linear motor push rod 5 moves to the set position, triggers the swing arm type limit switch 8, and the servo linear motor 6 stops moving, keeping the mesh belt 1 in a tensioned state and ensuring that the mesh belt 1 always maintains a suitable tension during operation;
[0037] S3: When the mesh belt 1 deviates to one side by less than 10mm, the mesh belt 1 does not contact the roller plunger type limit switch 7, and the device maintains its current state. When the mesh belt 1 deviates to one side by more than 10mm, the mesh belt 1 on that side contacts the roller plunger type limit switch 7 on the corresponding side. If the deviation continues and reaches between 11-15mm, the roller plunger type limit switches 7 on both sides respond and send a signal. At this time, the servo linear motor 6 on that side controls the servo linear motor push rod 5 to move backward, and the servo linear motor 6 on the opposite side controls the servo linear motor push rod 5 to move forward. By changing the position of the two sides of the front idler roller 2, the mesh belt 1 slowly deviates to the opposite side. As the mesh belt 1 moves back, when it returns to the middle position of the front idler roller 2, the stroke of the servo linear motor push rod 5 reaches the set value, triggering a stop command. The servo linear motor 6 stops operating, and the mesh belt 1 returns to the middle normal operating state. The entire process is monitored in real time by the roller plunger type limit switch 7, and the servo linear motor 6 and push rod 5 are dynamically adjusted to achieve automatic correction without manual intervention.
[0038] The above provides a detailed description of a novel automatic real-time tensioning and correction device provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A novel automatic real-time tensioning and deviation rectifying device, characterized in that, include: Feeding platform support (11), wherein an automatic real-time tensioning and correction mechanism is provided on the feeding platform support (11); The automatic real-time tensioning and correction mechanism includes a front idler roller (2), a slide bearing fixing seat (3), a slide bearing slide (4), a servo linear motor push rod (5), a servo linear motor (6), a roller plunger type limit switch (7), and a rocker arm type limit switch (8). The slide bearing fixing seat (3) is fixedly installed on the feed table bracket (11), the slide bearing slide (4) is slidably installed on the slide bearing fixing seat (3), the servo linear motor (6) is fixedly installed on the feed table bracket (11), the servo linear motor push rod (5) is fixedly connected to the slide bearing slide (4), and the servo linear motor push rod (5) is in contact with the swing arm type limit switch (8).
2. A novel automatic real-time tensioning and deviation rectifying device according to claim 1, characterized in that, A mesh belt (1) is wound around the front idler roller (2).
3. A novel automatic real-time tensioning and deviation rectifying device according to claim 1, characterized in that, The roller plunger type limit switch (7) is fixedly provided with a front limit switch bracket (9), which is fixedly installed on the inner side of the feed table bracket (11).
4. A novel automatic real-time tensioning and deviation rectifying device according to claim 1, characterized in that, The swing arm type limit switch (8) is fixedly provided with a rear limit switch bracket (10), which is fixedly installed on the outside of the feed table bracket (11).
5. A novel automatic real-time tensioning and deviation rectifying device according to claim 1, characterized in that, A counterweight device (12) is vertically slidably mounted on the feed platform support (11).
6. A novel automatic real-time tensioning and deviation rectifying device according to claim 2, characterized in that, The straight-line distance between the edge of the mesh belt (1) and the roller plunger type limit switch (7) is 10mm.