A box buffering device for a roller conveyor line

Abstract

The utility model relates to a drum conveying line technical field especially relates to a kind of box buffering device for drum conveying line, including U-shaped frame and base, first drum, second drum, third drum and fourth drum are rotationally arranged on U-shaped frame from left to right through bearing, the middle part of the lower end surface of U-shaped frame is provided with lifting screw rod, the middle part of the upper end surface of base is provided with fixed cylinder, fixed cylinder has telescopic groove inside, threaded sleeve is rotationally arranged on fixed cylinder, driven gear is arranged on the outside of threaded sleeve, fixed cylinder's outside is provided with mounting bracket, driving gear is rotationally arranged on mounting bracket, driving gear is driven by lifting motor, the number of outer teeth of driven gear is greater than the number of outer teeth of driving gear, the design is matched with the support structure, not only makes device in vertical direction can be stably adjusted, to better adapt to different drum conveying line, but also can reduce the use of accidental situation caused by adaptation problem.

Description

Technical Field

[0001] This utility model relates to the field of roller conveyor technology, and in particular to a box-type buffer device for roller conveyors. Background Technology

[0002] Roller conveyor lines are continuous conveying systems composed of parallel rollers. They transfer items such as boxes, bags, and pallets through roller rotation. They are characterized by high load-bearing capacity, stable conveying, and easy connection and filtration. They can adapt to heavy-duty, long-distance, or complex logistics scenarios. In continuous production, when the processing speed of downstream processes lags behind the upstream conveying rhythm, the box buffer device can be designed with accumulating rollers or independent buffer areas to allow materials to temporarily accumulate on the conveyor line without sliding and wearing. This avoids production interruptions caused by workpiece accumulation and reduces the physical exertion of operators frequently handling materials. At the same time, the buffer mechanism enables the orderly scheduling of materials, thereby improving the smoothness and efficiency of the overall production line.

[0003] Existing patent CN216376307U discloses a box buffer device, comprising: two symmetrically arranged side beams, with multiple end-to-end connecting conveying modules between the two side beams. The conveying direction of the conveying modules is the same as the extension direction of the side beams. Each conveying module is equipped with an independent drive module that provides power to it. Under the action of the drive module, the conveying module conveys the box located on its upper surface. The dimension of each conveying module in its conveying direction is greater than or equal to the dimension of the box in its conveying direction. Sensors are arranged between adjacent conveying modules. In the conveying direction, when the box and the sensor are at the same position, the sensor can detect the box. The technical solution adopted by this prior art can automatically detect the position of the box and automatically stop and start, realizing the buffering of the box and improving the efficiency of production operation.

[0004] However, in the existing technology, the box-type buffer device is installed on a support bracket during use. Since it is impossible to guarantee that the bracket and the device are completely compatible, it is easy to cause unexpected situations during use. Utility Model Content

[0005] The purpose of this utility model is to provide a box-type buffer device for roller conveyor lines, which aims to solve the technical problem that in the prior art, the box-type buffer device is installed on a support bracket during use, and since it is impossible to guarantee that the bracket and the device are fully compatible, it is easy to cause unexpected situations during use.

[0006] To achieve the above objectives, this utility model employs a box-type buffer device for a roller conveyor line, comprising a U-shaped frame and a base. A first roller, a second roller, a third roller, and a fourth roller are rotatably mounted on the U-shaped frame from left to right via bearings. A lifting screw is located at the center of the lower end face of the U-shaped frame. A fixed cylinder is located at the center of the upper end face of the base. The fixed cylinder has a telescopic groove. A threaded sleeve is rotatably mounted on the fixed cylinder. A driven gear is located on the outer side of the threaded sleeve. A mounting frame is located on the outer side of the fixed cylinder. A driving gear is rotatably mounted on the mounting frame. The driving gear is driven by a lifting motor. The driving gear meshes with the driven gear, and the number of external teeth on the driven gear is greater than the number of external teeth on the driving gear. The lifting screw is threadedly connected to the threaded sleeve and located within the threaded sleeve, extending into the telescopic groove. The U-shaped frame is located above the base.

[0007] The lifting screw has a polygonal groove, and the telescopic groove is provided with a polygonal rod, which extends into the polygonal groove.

[0008] The U-shaped frame has an inner enclosure around its lower end surface and an outer enclosure around its outer edge. Both the outer enclosure and the inner enclosure have heat dissipation holes on their outer sides, and the inner enclosure abuts against the inner side of the outer enclosure.

[0009] The U-shaped frame is provided with positioning rods at its four bottom corners and positioning cylinders at its four top corners, with the positioning rods extending into the positioning cylinders.

[0010] In this configuration, one end of the first roller and one end of the second roller are connected by a synchronous belt and a synchronous pulley, one end of the third roller and one end of the fourth roller are connected by a synchronous belt and a synchronous pulley, and the other end of the first roller is driven by a conveyor motor, while the other end of the second roller and the other end of the third roller are connected by a synchronous belt and a synchronous pulley.

[0011] The U-shaped frame has connecting grooves at both ends, and a fixing rod is vertically inserted into each connecting groove. A combined connecting rod is inserted into one of the connecting grooves, and both ends of the combined connecting rod have fixing holes through which the fixing rod passes.

[0012] This utility model discloses a box-type buffer device for roller conveyor lines, comprising a U-shaped frame and a base. A first roller, a second roller, a third roller, and a fourth roller are rotatably mounted on the U-shaped frame from left to right via bearings. A lifting screw is located at the center of the lower end face of the U-shaped frame, and a fixed cylinder is located at the center of the upper end face of the base. The fixed cylinder has a telescopic groove, and a threaded sleeve is rotatably mounted on the fixed cylinder. A driven gear is located on the outer side of the threaded sleeve, and a mounting frame is located on the outer side of the fixed cylinder. A driving gear is rotatably mounted on the mounting frame. The driving gear is driven by a lifting motor, and the driving gear meshes with the driven gear. The number of external teeth on the driven gear is greater than the number of external teeth on the driving gear. This design, by setting a matching support structure, not only enables the device to be stably adjusted vertically to better adapt to different roller conveyor lines, but also reduces the occurrence of unexpected situations due to compatibility issues. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0014] Figure 1 This is a three-dimensional view of the present invention.

[0015] Figure 2 This is the front view of this utility model.

[0016] Figure 3 This is the utility model Figure 2 A cross-sectional view along line AA in the middle.

[0017] Figure 4 This is the utility model Figure 3 A magnified view of a section at point B.

[0018] Figure 5 This is the utility model Figure 3 A cross-sectional view of the CC line.

[0019] Figure 6 This is the utility model Figure 5 A magnified view of a section at point D.

[0020] Figure 7 This is the utility model Figure 2 A cross-sectional view of the EE line.

[0021] Figure 8 This is a schematic diagram of the combination of the present invention in the case of extended cache area.

[0022] 1-U-shaped frame, 2-base, 3-first roller, 4-second roller, 5-third roller, 6-fourth roller, 7-lifting screw, 8-fixed cylinder, 9-telescopic groove, 10-threaded sleeve, 11-driven gear, 12-mounting bracket, 13-drive gear, 14-lifting motor, 15-polygonal groove, 16-polygonal rod, 17-inner enclosure, 18-outer enclosure, 19-heat dissipation hole, 20-positioning rod, 21-positioning cylinder, 22-synchronous belt, 23-synchronous pulley, 24-conveyor motor, 25-connecting groove, 26-fixed rod, 27-combination connecting rod, 28-fixing hole. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0024] Please see Figures 1-8 This utility model provides a box-type buffer device for a roller conveyor line, including a U-shaped frame 1 and a base 2. A first roller 3, a second roller 4, a third roller 5, and a fourth roller 6 are rotatably mounted on the U-shaped frame 1 from left to right via bearings. A lifting screw 7 is located at the center of the lower end face of the U-shaped frame 1. A fixed cylinder 8 is located at the center of the upper end face of the base 2. The fixed cylinder 8 has a telescopic groove 9. A threaded sleeve 10 is rotatably mounted on the fixed cylinder 8. A driven gear 11 is located on the outer side of the threaded sleeve 10. A mounting frame 12 is located on the outer side of the fixed cylinder 8. A driving gear 13 is rotatably mounted on the mounting frame 12. The driving gear 13 is driven by a lifting motor 14. The driving gear 13 meshes with the driven gear 11, and the number of external teeth of the driven gear 11 is greater than the number of external teeth of the driving gear 13. The lifting screw 7 is threadedly connected to the threaded sleeve 10 and located within the threaded sleeve 10, extending into the telescopic groove 9. The U-shaped frame 1 is located above the base 2.

[0025] In this embodiment, the lifting motor 14 drives the drive gear 13 to rotate, which in turn drives the driven gear 11 and the threaded sleeve 10 to rotate, causing the lifting screw 7 to rise and fall within the threaded sleeve 10. This achieves the lifting and adjusting of the U-shaped frame 1 relative to the base 2, allowing for flexible adjustment of the device height according to different box specifications or actual usage scenarios, enhancing the device's versatility and practicality. Furthermore, the number of external teeth on the driven gear 11 is greater than that on the drive gear 13, resulting in a reduction in speed and torque, making the lifting process smoother, less strenuous, and capable of bearing greater weight. By setting a matching support structure, the device can not only be stably adjusted vertically to better adapt to different roller conveyor lines, but also reduce unexpected situations caused by compatibility issues.

[0026] Furthermore, the lifting screw 7 has a polygonal groove 15, and the telescopic groove 9 is provided with a polygonal rod 16, which extends into the polygonal groove 15.

[0027] In this embodiment, when the threaded sleeve 10 rotates, the lifting screw 7 can only move in a straight line along the direction of the polygonal rod 16, which avoids instability or damage to the device caused by the rotation of the lifting screw 7 itself, improves the reliability and stability of the device's lifting adjustment, and ensures the safety of the device during operation.

[0028] Furthermore, an inner enclosure 17 is provided around the outer edge of the lower end face of the U-shaped frame 1, and an outer enclosure 18 is provided around the outer edge of the base 2. Both the outer enclosure 18 and the inner enclosure 17 have heat dissipation holes 19 on their outer sides, and the inner enclosure 17 abuts against the inner side of the outer enclosure 18.

[0029] In this embodiment, this structure not only enhances the connection stability between the U-shaped frame 1 and the base 2, but also prevents dust, debris, and other contaminants from entering the device, protecting the internal mechanical components. Simultaneously, the heat dissipation holes 19 on the outer sides of both the outer perimeter 18 and the inner perimeter 17 effectively dissipate the heat generated during operation, preventing excessive temperature from affecting the device's performance and lifespan, and ensuring long-term stable operation.

[0030] Furthermore, positioning rods 20 are provided at the four bottom corners of the U-shaped frame 1, and positioning cylinders 21 are provided at the four top corners of the base 2, with the positioning rods 20 extending into the positioning cylinders 21.

[0031] In this embodiment, during the lifting or use of the device, the cooperation between the positioning rod 20 and the positioning cylinder 21 plays a precise positioning and guiding role, which can ensure that the U-shaped frame 1 moves accurately in the vertical direction relative to the base 2, and prevent deviation or tilting.

[0032] Furthermore, one end of the first roller 3 and one end of the second roller 4 are connected by a synchronous belt 22 and a synchronous pulley 23, one end of the third roller 5 and one end of the fourth roller 6 are connected by a synchronous belt 22 and a synchronous pulley 23, and the other end of the first roller 3 is driven by a conveyor motor 24, and the other end of the second roller 4 and the other end of the third roller 5 are connected by a synchronous belt 22 and a synchronous pulley 23.

[0033] In this embodiment, when the conveyor motor 24 starts, the synchronous belt 22 and the synchronous pulley 23 drive the four rollers to rotate simultaneously, so that the box can be smoothly buffered and conveyed on the rollers, which improves the working efficiency and conveying quality of the device and avoids problems such as box jamming or tilting caused by inconsistent roller speeds.

[0034] Furthermore, both ends of the U-shaped frame 1 have connecting grooves 25, and a fixing rod 26 is vertically inserted into the connecting groove 25. A combined connecting rod 27 is inserted into one of the connecting grooves 25, and both ends of the combined connecting rod 27 have fixing holes 28 through which the fixing rod 26 passes.

[0035] In this embodiment, by inserting the combined connecting rod 27 into the connecting groove 25 and fixing it by passing the fixing rod 26 through the fixing hole 28, multiple devices can be connected together quickly and stably to form a longer conveyor line or buffer area to meet the production needs of different scales, thereby improving the flexibility and applicability of the device.

[0036] When using this utility model, first, firmly place the base 2 in a suitable support position to ensure it is stable and does not wobble. Then, start the lifting motor 14. The lifting motor 14 drives the drive gear 13 on the mounting bracket 12 to rotate. Since the drive gear 13 meshes with the driven gear 11 on the outside of the threaded sleeve 10 on the fixed cylinder 8, and the driven gear 11 has more external teeth than the drive gear 13, it achieves speed reduction and torque increase, thereby driving the threaded sleeve 10 to rotate inside the fixed cylinder 8. Furthermore, since the lifting screw 7 is threadedly connected to the threaded sleeve 10 and its internal polygonal groove 15 cooperates with the polygonal rod 16 in the telescopic groove 9 to restrict rotation, the lifting screw 7 makes a linear lifting motion inside the threaded sleeve 10, thereby adjusting the U-shaped frame 1 to... After adjusting the height to a suitable level, place the boxes to be buffered on the first roller 3, the second roller 4, the third roller 5, and the fourth roller 6. Then start the conveyor motor 24, which drives the first roller 3 to rotate. Through the transmission of the synchronous belt 22 and the synchronous pulley 23, the second roller 4, the third roller 5, and the fourth roller 6 rotate synchronously, thereby achieving smooth conveying and buffering of the boxes on the rollers. If it is necessary to extend the buffer area, multiple box buffer devices for the same roller conveyor line can be arranged in a straight line. Then, insert the corresponding combined connecting rod 27 into the corresponding connecting groove 25 and fix it with the fixing rod 26 passing through the fixing holes 28 at both ends of the combined connecting rod 27 to complete the connection expansion of the device.

[0037] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A box-type buffer device for a roller conveyor line, characterized in that, The device includes a U-shaped frame and a base. A first roller, a second roller, a third roller, and a fourth roller are rotatably mounted on the U-shaped frame from left to right via bearings. A lifting screw is located at the center of the lower end face of the U-shaped frame. A fixed cylinder is located at the center of the upper end face of the base. The fixed cylinder has a telescopic groove. A threaded sleeve is rotatably mounted on the fixed cylinder. A driven gear is located on the outer side of the threaded sleeve. A mounting bracket is located on the outer side of the fixed cylinder. A driving gear is rotatably mounted on the mounting bracket. The driving gear is driven by a lifting motor. The driving gear meshes with the driven gear, and the number of external teeth on the driven gear is greater than the number of external teeth on the driving gear. The lifting screw is threadedly connected to the threaded sleeve and located within the threaded sleeve, extending into the telescopic groove. The U-shaped frame is located above the base.

2. The box-type buffer device for a roller conveyor line as described in claim 1, characterized in that, The lifting screw has a polygonal groove, and a polygonal rod is provided in the telescopic groove, with the polygonal rod extending into the polygonal groove.

3. The box-type buffer device for a roller conveyor line as described in claim 2, characterized in that, An inner enclosure is provided around the outer edge of the lower end face of the U-shaped frame, and an outer enclosure is provided around the outer edge of the base. Both the outer enclosure and the inner enclosure have heat dissipation holes on their outer sides, and the inner enclosure abuts against the inner side of the outer enclosure.

4. The box-type buffer device for a roller conveyor line as described in claim 3, characterized in that, The U-shaped frame is provided with positioning rods at the four bottom corners, and the base is provided with positioning cylinders at the four top corners, with the positioning rods extending into the positioning cylinders.

5. The housing buffer device for a roller conveyor line as described in claim 4, characterized in that, One end of the first roller and one end of the second roller are connected by a synchronous belt and a synchronous pulley, one end of the third roller and one end of the fourth roller are connected by a synchronous belt and a synchronous pulley, and the other end of the first roller is driven by a conveyor motor, and the other end of the second roller and the other end of the third roller are connected by a synchronous belt and a synchronous pulley.

6. The box-type buffer device for a roller conveyor line as described in claim 5, characterized in that, Both ends of the U-shaped frame have connecting grooves, and a fixing rod is vertically inserted into each connecting groove. A combined connecting rod is inserted into one of the connecting grooves, and both ends of the combined connecting rod have fixing holes through which the fixing rod passes.

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