Quick adjusting device for width of conveyor belt track
By installing a track adjustment body, adjustable guards, and a locking unit with a lead screw on the conveyor belt, the problems of slow speed and low precision in traditional conveyor belt track adjustment are solved, achieving dynamic, fast, and precise adjustment, thus improving adjustment efficiency and accuracy.
Patent Information
- Application Number
- CN202511846387.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-08
- Publication Date
- 2026-02-27
AI Technical Summary
Traditional conveyor belt track width adjustment is slow and has low precision. It cannot be dynamically adjusted during conveyor belt operation and requires repeated loosening and tightening of screws.
The device employs a visual conveyor belt track width quick adjustment mechanism, which includes a track adjustment body, adjustable guards, a lead screw, and a locking unit. By moving the lever and rotating the knob, the lead screw can be pushed forward or backward. With the automatic locking of the locking nut and spring, dynamic, fast, and precise adjustment can be achieved.
It achieves dynamic, rapid, and precise adjustment of the conveyor belt track width, improving adjustment efficiency by more than 50% and achieving an accuracy of 0.2mm, meeting production needs. The device is flexible to install and has low cost.
Smart Images
Figure CN121573365A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of conveyor belt technology, and more specifically to a device for rapidly adjusting the width of a conveyor belt track. Background Technology
[0002] Currently, in automated manufacturing applications, motor-driven conveyor belts are frequently used to transport products produced in automated production. Above the conveyor belt, tracks are typically installed to guide the products, ensuring they are transported along the conveyor belt according to production requirements. Because the shapes, structures, and sizes of the products produced vary, the width of the conveyor belt tracks needs to be adjusted according to different product requirements. The traditional approach is as follows: one side of the track has a fixed guard edge, mounted on a base on one side of the conveyor belt via a fixed guard edge base plate, its position remaining constant. The other side has an adjustable guard edge, secured to an adjustable guard edge base plate via an adjustable guard edge bracket with screws. The adjustable guard edge base plate is fixed to the base on the other side of the conveyor belt, and the position of the adjustable guard edge can be adjusted according to the product's shape and size. Before adjustment, the locking screws on the adjustable guard edge bracket must be loosened. Then, the relative width between the adjustable and fixed guard edges on the track is adjusted according to the product's needs, and finally, the locking screws on the adjustable guard edge bracket are tightened. After adjustment, turn on the conveyor belt, place the product on it, and test run to see if it meets the production process requirements. If it does not meet the requirements, the relative width of the adjustable and fixed guard edges of the track needs to be repeatedly adjusted until the track width meets the production process requirements. This method requires repeatedly loosening, adjusting, and tightening screws, so the adjustment speed is slow; the adjustment accuracy of this method is low, and it cannot accurately adjust the relative width between the fixed and adjustable guard edges of the track. For safety reasons, the track width must be adjusted when the conveyor belt is stopped, and cannot be adjusted dynamically. Summary of the Invention
[0003] To address the aforementioned technical problems, this invention can dynamically, quickly, and accurately adjust the relative width between the fixed guard edge and the adjustable guard edge of the conveyor belt while the conveyor belt is operating normally. This invention provides a visual, low-cost, and highly efficient device for quickly adjusting the width of a conveyor belt track. To solve the above technical problems, the technical solution provided by this invention is: a device for quickly adjusting the width of a conveyor belt track, comprising a conveyor belt, a linear fixed guard edge on one side of the conveyor belt, and a conveyor belt track width adjustment structure on the other side of the conveyor belt. The adjustment structure includes a track adjustment body, an adjustable guard edge parallel to the track adjustment body, a lead screw, and a locking unit disposed in the middle of the adjustment body. The track adjustment body is a linear cuboid structure fixedly disposed on the side of the conveyor belt. The adjustable guard edge is a linear cuboid facing the fixed guard edge and is disposed above the conveyor belt. One end of the lead screw is vertically connected to the middle of the adjustable guard edge, and the other end passes through the track adjustment body and engages with the locking unit. The locking unit locks / releases the lead screw, and the lead screw pushes the adjustable guard edge forward or backward toward the fixed guard edge.
[0004] Furthermore, in the aforementioned rapid adjustment device for the conveyor belt track width, a fixed knob is also fixed at the through end of the lead screw to allow the adjustable guard to move forward or backward toward the fixed guard. A rotary bearing is provided at the vertical connection end between the lead screw and the adjustable guard, with the lead screw connected to the middle of the adjustable guard via the rotary bearing. The rotary bearing comprises an inner ring, balls, and an outer ring from the inside out. The outer ring is fixed to the adjustable guard, and the lead screw is fixed to the inner ring of the rotary bearing. When the lead screw rotates, the inner ring and balls within the bearing rotate accordingly, while the outer ring and the adjustable guard remain stationary. Gently turning the knob causes the entire lead screw to rotate, moving the adjustment body away from or towards the adjustable guard. This allows for a slight push of the adjustable guard toward or backward toward the fixed guard, enabling precise adjustment of the conveyor belt track width, thus allowing for track width adjustment.
[0005] The adjustment structure also includes connecting slide rods located at both ends of the track adjustment body and the adjustable guard edge. One end of each slide rod is vertically fixed to the adjustable guard edge, while the other end passes through and connects to the track adjustment body. These two slide rods are parallel to each other. When the adjustment body and the adjustable guard edge are long, the connecting slide rods further ensure that the adjustable guard edge remains parallel to the adjustment body during the sliding of the lead screw. A linear bearing is installed at the point where the slide rod passes through and connects to the track adjustment body.
[0006] The locking unit includes a locking cavity located in the middle of the track adjustment body, a locking nut inside the locking cavity, a lever fixed to the upper end of the locking nut for actuating the locking nut, a lead screw passing through the locking cavity, a locking spring at the rear end of the locking nut, and a thread at the front end of the locking nut that meshes with the lead screw thread. By actuating the lever, the locking nut horizontally compresses the locking spring, causing the thread at the front end of the locking nut to loosen the lead screw. The lead screw then pushes the adjustable guard edge forward or backward toward the fixed guard edge, allowing the conveyor belt track to be narrowed or widened. An M10 lead screw is fixedly installed in the middle of the adjustable guard edge, passing through a 10mm inner diameter circular hole in the locking cavity in the middle of the track adjustment body. After releasing the lever, the M10 thread at the front end of the locking nut meshes deeply with the lead screw thread under the spring force. The anti-loosening design allows for precise adjustment of the track width by a knob on the lead screw manually, ensuring that the track width remains constant.
[0007] The locking unit also includes a cover plate that covers the locking cavity, and the cover plate is provided with a groove that allows it to slide freely after the lever is turned.
[0008] Further, the aforementioned rapid adjustment device for conveyor belt track width also includes an adjustment guard plate fixedly installed at the lower end of the adjustment structure. A strip-shaped base is fixedly installed on the adjustment guard plate, with positioning pins vertically positioned at both ends of the base. The track adjustment body has positioning holes at both ends corresponding to the positioning pins. The positioning pins are inserted into the positioning holes, fixing the track adjustment body to the base. The base and the adjustment guard plate are at a 5-degree angle to each other. This ensures that after the track adjustment device is installed, the track width is slightly wider at the front and slightly narrower at the rear, facilitating smoother product positioning. A main body locking screw is also provided in the middle of the track adjustment body, and a corresponding locking screw hole is provided on the base. Tightening the main body locking screw in the middle of the track adjustment body secures the track adjustment body firmly to the base. The adjustable edge protector has a flat rectangular structure. The end face of the adjustable edge protector has a bevel for easy insertion / extraction of products. The fixed edge protector has a fixed edge protector base plate at its lower end. The fixed edge protector has an L-shaped longitudinal section and the horizontal edge of the fixed edge protector is fixed to the fixed edge protector base plate.
[0009] The conveyor belt is an integrated transmission mechanism assembled on a frame, consisting of a belt, drive shaft, driven shaft, motor, gearbox, and belt tensioning mechanism. The belt is installed between the drive shaft and the driven shaft and is tensioned by the belt tensioning mechanism. The motor, gearbox, and drive shaft are assembled together, and the motor drives the belt to rotate. Adjusting the motor speed changes the belt's running speed. The fixed edge guard is a straight edge guard that is fixed to a base on one side of the conveyor belt by a fixed edge guard base plate. It is used to protect the products during normal transmission on the conveyor belt and prevent them from being transported outside the conveyor belt.
[0010] Compared with existing technologies, the above-mentioned rapid adjustment device for conveyor belt track width includes a conveyor belt, a linear fixed guard edge on one side of the conveyor belt, and a conveyor belt track width adjustment structure on the other side of the conveyor belt. The adjustment structure includes a track adjustment body, an adjustable guard edge parallel to the track adjustment body, a lead screw, and a locking unit located in the middle of the adjustment body. The track adjustment body is a linear cuboid structure fixedly installed on the side of the conveyor belt. The adjustable guard edge is a linear cuboid opposite to the fixed guard edge and is positioned above the conveyor belt. One end of the lead screw is vertically connected to the middle of the adjustable guard edge, and the other end passes through the track adjustment body and engages with the locking unit. The locking unit locks / releases the lead screw, which pushes the adjustable guard edge forward or backward toward the fixed guard edge. By disengaging the lever of the locking unit and manually pushing the adjustable guard edge according to the size of the product, the track width can be quickly adjusted to a roughly suitable position. After quick adjustment, release the lever of the locking unit. The locking nut automatically locks the lead screw under the spring force of the locking spring. Then, manually rotate the fixing knob to fine-tune to the appropriate track width. Start the conveyor belt and observe the product's running status on it. Based on the product's running status, manually adjust the lead screw knob to achieve precise adjustment of the track width. This invention can dynamically, quickly, and accurately adjust the track width, achieving tool-free rapid adjustment, improving efficiency by more than 50%, and achieving an adjustment accuracy of 0.2mm, meeting the needs for dynamic, rapid, and precise adjustment of conveyor belt track width. This device is flexible in installation, highly versatile, and compatible. Its mechanical structure is ingenious and simple, resulting in low manufacturing costs. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structural principle of the conveyor belt track width quick adjustment device in Implementation Method 1. Figure 2 An exploded view showing the adjusted structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structural principle of the rapid adjustment device for the width of the conveyor belt track in Implementation Method 2; Figure 4 A schematic diagram of the structural principle of an existing conveyor belt track width adjustment device; The components are: 1. Conveyor belt; 2. Fixed edge guard; 3. Track adjustment body; 4. Adjustable edge guard; 5. Lead screw; 6. Fixed knob; 7. Connecting slide bar; 8. Linear bearing; 9. Locking cavity; 10. Locking nut; 11. Lever; 12. Locking spring; 13. Thread; 14. Cover plate; 15. Waist groove; 16. Adjustable edge guard base plate; 17. Base; 18. Positioning pin; 19. Positioning hole; 20. Main body locking screw; 21. Locking screw hole; 22. Fixed edge guard base plate; 23. Product; 24. Adjustable edge guard bracket; 25. Screw; 26. Inclined surface. Detailed Implementation
[0012] To facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to comparative examples, accompanying drawings, and embodiments.
[0013] Implementation method one: such as Figure 1 , 2 As shown, a rapid adjustment device for conveyor belt track width includes a conveyor belt 1, a linear fixed guard 2 on one side of the conveyor belt, and a conveyor belt track width adjustment structure on the other side of the conveyor belt. The adjustment structure includes a track adjustment body 3, an adjustable guard 4 parallel to the track adjustment body, a lead screw 5, and a locking unit. The track adjustment body 3 is a linear cuboid structure fixedly installed on the side of the conveyor belt. The adjustable guard 4 is a linear cuboid opposite to the fixed guard 2 and is located above the conveyor belt. One end of the lead screw 5 is vertically connected to the middle of the adjustable guard 4, and the other end passes through the track adjustment body 3. The locking unit locks / releases the lead screw, and the lead screw 5 pushes the adjustable guard 4 forward or backward toward the fixed guard 2. A fixed knob 6 is also fixedly installed at the through end of the lead screw 5 to finely adjust the adjustable guard 4 forward or backward toward the fixed guard 2. A rotary bearing is provided at the vertical connection end between the lead screw and the adjustable guard 4, and the lead screw 5 is connected to the middle of the adjustable guard through the rotary bearing. The adjustment structure also includes connecting slide rods 7 at both ends of the track adjustment body 3 and the adjustable guard edge 4. One end of the connecting slide rod 7 is vertically fixed to the adjustable guard edge, and the other end passes through and connects to the track adjustment body. A linear bearing 8 is installed at the through connection between the slide rod and the track adjustment body. The locking unit includes a locking cavity 9 in the middle of the track adjustment body, a locking nut 10 in the locking cavity, a lever 11 for moving the locking nut fixed at the upper end of the locking nut 10, a lead screw 5 passing through the locking cavity 9, a locking spring 12 at the rear end of the locking nut, and a thread 13 at the front end of the locking nut that meshes with the thread of the lead screw. By moving the lever 11, the locking nut 10 horizontally compresses the locking spring 12, causing the thread 13 at the front end of the locking nut 10 to release the lead screw, and the lead screw 5 pushes the adjustable guard edge 4 forward or backward toward the fixed guard edge 2. The locking unit also includes a cover plate 14 covering the locking cavity, and the cover plate has a groove 15 that allows the lever to slide freely after being moved. It also includes an adjustment guard plate 16 fixedly installed at the lower end of the adjustment structure, a strip base 17 fixedly installed on the adjustment guard plate, and positioning pins 18 vertically installed at both ends of the base. The track adjustment body 3 has positioning holes 19 corresponding to the positioning pins at both ends. The track adjustment body also has a main body locking screw 20 in the middle, and a locking screw hole 21 corresponding to the main body locking screw is also provided on the base. The fixed guard 2 has a fixed guard plate 22 at its lower end. The adjustable guard 4 is a flat cuboid structure. The end face of the adjustable guard has a sloping surface 26 for easy product insertion / extraction. The fixed guard 2 has an L-shaped longitudinal section, and the horizontal side of the fixed guard is fixed to the fixed guard plate 22.
[0014] During installation, first install the base 17 on top of the adjusting guard plate 16 on the side of the conveyor frame, and fix it to the adjusting guard plate 16 with screws. After the base 17 and the adjusting guard plate 16 are installed, align the two positioning holes 19 of the track adjustment body 3 with the two positioning pins 18 of the base 17, insert them, and flatten them. Then tighten the main body locking screw 20 in the middle of the track adjustment body 3. In this way, the track adjustment device is quickly installed. Move the lever 11 of the locking unit, and manually push the adjustable guard 4 according to the size of the product to quickly adjust the width of the track to a roughly suitable position. During the entire adjustment process, it is not necessary to loosen any screws in the entire device. Simply pull the lever 11 to horizontally compress the locking spring 12, releasing the lead screw 5 that meshes with the locking nut 10. This allows the lead screw 5 to slide back and forth in the vertical direction of the track adjustment body 3, thereby driving the adjustable guard 4 forward or backward toward the fixed guard. After the adjustment is completed quickly, release the lever 11 of the locking unit. The locking nut 10 automatically meshes and locks the lead screw 5 under the spring force of the locking spring 12. Then, manually rotate the fixing knob 6 to fine-tune to the appropriate track width. Start the conveyor belt and check the running status of the product 23 on the conveyor belt. Based on the running status of the product 23, manually adjust the lead screw knob to achieve precise adjustment of the track width.
[0015] Implementation Method Two: (e.g.) Figure 2 , 3 As shown, the difference from Embodiment 1 is that the base 17 and the adjusting edge plate 16 are at a 5-degree angle to each other. This is so that after the track adjustment device is installed, the track width is slightly wider at the front and slightly narrower at the rear, which is to more smoothly guide the product's position.
[0016] During installation, first install the base 17 on top of the adjusting guard plate 16 on the side of the conveyor frame, and fix it to the adjusting guard plate 16 with screws. The adjusting guard plate 16 and the base 17 are at a 5-degree angle to each other, so that after the track adjustment device is installed, the front of the track is slightly wider and the rear of the track is slightly narrower. This is to facilitate smoother alignment of the product. After the base 17 and the adjusting guard plate 16 are installed, align the two positioning holes 19 of the track adjustment body 3 with the two positioning pins 18 of the base 17, insert them, and flatten the track. Then tighten the main locking screw 20 in the middle of the track adjustment body 3. In this way, the track adjustment device is quickly installed. Move the lever 11 of the locking unit, and manually push the adjustable guard 4 according to the size of the product to quickly adjust the width of the track to a roughly suitable position. During the entire adjustment process, it is not necessary to loosen any screws in the entire device. Simply pull the lever 11 to horizontally compress the locking spring 12, releasing the lead screw 5 that meshes with the locking nut 10. This allows the lead screw 5 to slide back and forth in the vertical direction of the track adjustment body 3, thereby driving the adjustable guard 4 forward or backward toward the fixed guard. After the adjustment is completed quickly, release the lever 11 of the locking unit. The locking nut 10 automatically meshes and locks the lead screw 5 under the spring force of the locking spring 12. Then, manually rotate the fixing knob 6 to fine-tune to the appropriate track width. Start the conveyor belt and check the running status of the product 23 on the conveyor belt. Based on the running status of the product 23, manually adjust the lead screw knob to achieve precise adjustment of the track width.
[0017] Both Examples 1 and 2 can dynamically, quickly, and accurately adjust the track width, achieving tool-free rapid adjustment, improving adjustment efficiency by more than 50%, and achieving an adjustment accuracy of 0.2mm, thus meeting the needs for dynamic, rapid, and accurate adjustment of conveyor belt track width.
[0018] Comparative example: Refer to Figure 4The existing conveyor belt track width adjustment device includes a conveyor belt 1, with a fixed guard edge 2 on one side of the track, mounted on a base on one side of the conveyor belt 1 via a fixed guard edge base plate 22. The position of the fixed guard edge 2 remains fixed. The other side of the track has an adjustable guard edge 4, which is locked to the adjustable guard edge base plate 16 via an adjustable guard edge bracket 24 using screws 25. The adjustable guard edge base plate 16 is fixed to the base on the other side of the conveyor belt 1. The position of the adjustable guard edge 4 can be adjusted according to the shape and size requirements of the product 23. Before adjustment, loosen the locking screws 25 on the adjustable guard edge bracket 24, then adjust the relative width between the adjustable guard edge 4 and the fixed guard edge 2 according to the needs of the product 23, and then tighten the locking screws 25 on the adjustable guard edge bracket 24. After adjustment, turn on the conveyor belt, place the product 23 on it, and test run to see if it meets the production process requirements. If it does not meet the requirements, repeatedly adjust the relative width between the adjustable guard edge 4 and the fixed guard edge 2 until the track width meets the production process requirements. The adjustment speed is slow, requiring repeated loosening, width adjustment, and tightening of screws. The adjustment accuracy is low, unable to precisely adjust the relative width between the fixed and adjustable rail guards. For safety reasons, the rail width must be adjusted when the conveyor belt is stopped; dynamic adjustment is not possible. Repeatedly loosening and loosening the screws also easily strips them, further reducing adjustment accuracy.
[0019] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is not necessary to exhaustively list all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. A quick adjustment device for the width of a conveyor belt track, comprising a conveyor belt (1), a linear fixed guard edge (2) on one side of the conveyor belt, and a conveyor belt track width adjustment structure on the other side of the conveyor belt, characterized in that: The adjustment structure includes a track adjustment body (3), an adjustable guard edge (4) parallel to the track adjustment body, a lead screw (5), and a locking unit set in the middle of the adjustment body (3); The track adjustment body (3) is a linear cuboid structure fixedly installed on the side of the conveyor belt; the adjustable guard (4) is a linear cuboid opposite to the fixed guard (2), and the adjustable guard (4) is located above the conveyor belt; one end of the screw (5) is vertically connected to the middle of the adjustable guard (4), and the other end passes through the track adjustment body (3) and meshes with the locking unit. The locking unit locks / releases the lead screw, and the lead screw (5) pushes the adjustable guard (4) forward or backward toward the fixed guard (2).
2. The rapid adjustment device for conveyor belt track width according to claim 1, characterized in that: A fixed knob (6) is also fixed at the through end of the lead screw (5) to move the adjustable guard (4) forward or backward toward the fixed guard (2); a rotary bearing is provided at the vertical connection end between the lead screw and the adjustable guard (4), and the lead screw (5) is connected to the middle of the adjustable guard through the rotary bearing.
3. The rapid adjustment device for conveyor belt track width according to claim 2, characterized in that: The adjustment structure also includes connecting slide rods (7) set at both ends of the track adjustment body (3) and the adjustable guard edge (4). One end of the connecting slide rod (7) is vertically fixed to the adjustable guard edge, and the other end is connected through the track adjustment body.
4. The rapid adjustment device for conveyor belt track width according to claim 3, characterized in that: A linear bearing (8) is installed at the through connection between the slide rod and the main body of the track adjustment.
5. The rapid adjustment device for conveyor belt track width according to claim 1, characterized in that: The locking unit includes a locking cavity (9) located in the middle of the track adjustment body, a locking nut (10) located in the locking cavity, a lever (11) for moving the locking nut fixed at the upper end of the locking nut (10), a locking spring (12) located at the rear end of the locking nut, a lead screw (5) passing through the locking cavity (9), and a thread (13) at the front end of the locking nut that meshes with the thread of the lead screw.
6. The rapid adjustment device for conveyor belt track width according to claim 5, characterized in that: The locking unit also includes a cover plate (14) covering the locking cavity, and the cover plate is provided with a waist groove (15) that allows the lever to slide freely after being turned.
7. The rapid adjustment device for conveyor belt track width according to claim 6, characterized in that: It also includes an adjustment guard plate (16) fixedly installed at the lower end of the adjustment structure, a strip base (17) fixedly installed on the adjustment guard plate, and positioning pins (18) vertically installed at both ends of the base. The track adjustment body (3) is provided with positioning holes (19) corresponding to the positioning pins at both ends.
8. The rapid adjustment device for conveyor belt track width according to claim 7, characterized in that: The base (17) and the adjusting edge plate (16) are at a 5-degree angle to each other.
9. The rapid adjustment device for the width of the conveyor belt track according to claim 7 or 8, characterized in that: The track adjustment body is also provided with a main body locking screw (20) in the middle, and a locking screw hole (21) corresponding to the main body locking screw is provided on the base.
10. The rapid adjustment device for the width of the conveyor belt track according to claim 1, characterized in that: The adjustable edge protector (4) is a flat cuboid structure. The end face of the adjustable edge protector is provided with a sloping surface (26) that facilitates the introduction / extraction of products. The fixed edge protector (2) is provided with a fixed edge protector base plate (22) at the lower end. The fixed edge protector (2) has an L-shaped longitudinal section and the horizontal edge of the fixed edge protector is fixed on the fixed edge protector base plate (22).