Bar conveying limiting device

Abstract

This utility model relates to the field of bar processing technology, and in particular to a bar conveying and limiting device, including a frame, on which a conveying mechanism is provided for conveying bars. The conveying mechanism includes: a feeding component, which is provided on the frame and used for feeding bars; and a pick-and-place component, including second guide seats fixed on the left and right sides of the upper end inside the frame, a second rack slidably installed inside the second guide seats, a connecting plate fixed to the rear end of the top of the second rack, a short-stroke cylinder installed at the lower end of the connecting plate, a bracket fixed to the output end above the short-stroke cylinder, a first guide seat fixed in the middle of the upper end inside the frame, a first rack slidably installed inside the first guide seat, and a shaft rotatably installed between the left and right sides of the front of the upper end inside the frame, a first gear fixed in the middle of the outer wall of the shaft and meshing with the first rack for transmission; achieving precise bar feeding, single bar separation, stable conveying, and orderly discharge.

Description

Technical Field

[0001] This utility model relates to the field of bar processing technology, specifically a bar conveying and limiting device. Background Technology

[0002] In modern industrial production, bar stock is a basic raw material that is widely used in many fields such as machinery manufacturing, building materials, and automotive parts processing. According to CN219030668U, a bar conveying limiting device is disclosed. This technology discloses a technical solution including "a transmission chain support, on which at least two synchronous transmission chains are provided, and the inner and / or outer chain plates of the transmission chains are provided with grooves". It has the technical effect of "by setting grooves on the chain plates, the bars fall into the grooves on the transmission chains, thereby limiting the disorderly rolling of the bars on the transmission chain plates, avoiding the tilting and displacement of the bars, or even the situation where the bars cannot be unloaded from the transmission chain due to jamming during the conveying process, so that the bars can be stably transmitted on the transmission chain, avoiding the workers having to stop to repair when the bars are jammed, improving production efficiency and reducing production costs". Existing devices typically use robotic arms to grip and pick up bar stock when feeding it. While this can achieve material separation, the robotic arms require complex vision or sensor systems to identify and locate individual bars when gripping stacked bars. This places high demands on the control system and results in relatively high equipment and maintenance costs. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a bar conveying and limiting device that enables precise bar feeding, single bar separation, stable conveying, and orderly discharge.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a bar conveying and limiting device, comprising a frame, wherein a conveying mechanism is mounted on the frame for conveying bars, the conveying mechanism comprising: A feeding assembly, mounted on the frame, is used for feeding bars; The pick-and-place assembly includes a second guide seat fixed on the left and right sides of the upper end inside the frame. A second rack is slidably installed inside the second guide seat. A connecting plate is fixed to the top rear end of the second rack. A short-stroke cylinder is installed at the lower end of the connecting plate. A bracket is fixed to the output end above the short-stroke cylinder. A first guide seat is fixed in the middle of the upper end inside the frame. A first rack is slidably installed inside the first guide seat. A shaft is rotatably installed between the left and right sides of the front of the upper end inside the frame. A first gear is fixed in the middle of the outer wall of the shaft and meshes with the first rack for transmission. Second gears are fixed at both ends of the outer wall of the shaft and mesh with the second rack for transmission. A long-stroke cylinder is installed at the rear end of the frame and is used to drive the first rack. The discharge assembly is mounted on the frame and is used for conveying bars.

[0005] Preferably, the feeding assembly includes a fixing part fixed to the left and right sides of the rear end of the frame, an inclined plate fixed to the top rear end of the fixing part, a support plate fixed to the front of the lower end of the inclined plate, and a baffle plate fixed to the front of the top of the support plate.

[0006] Preferably, the discharge assembly further includes several cross frames fixed inside the upper part of the frame and arranged front to back. Several wheel seats arranged left to right are fixed on the top of the cross frames, and guide wheels are rotatably installed on the upper end of the wheel seats.

[0007] Preferably, the discharge assembly further includes a shaft frame fixed to the left side of the upper end of the frame, with rollers rotatably mounted between the front and rear ends of the shaft frame, and a motor mounted at the rear end of the shaft frame for driving the rollers.

[0008] Preferably, the upper end of the bracket is provided with a groove, and the top of the rear end of the groove is constructed into a pointed structure that can penetrate between adjacent bars.

[0009] Preferably, the circumferential side of the roller is fixedly covered with a rubber sleeve, and the outer surface of the sleeve is provided with a mesh texture.

[0010] Beneficial effects This utility model provides a bar conveying and limiting device. Compared with the prior art, it has the following advantages: 1. The output end of the short-stroke cylinder drives the bracket to lift upwards, lifting the bottommost single bar stacked on the support plate, separating it from the remaining bars above. The output end of the long-stroke cylinder extends, driving the first rack to slide forward along the inside of the first guide seat. The first rack drives the first gear meshing with it to rotate, thereby causing the shaft to rotate synchronously. The second gears fixed at both ends of the shaft rotate accordingly, meshing and driving the second racks on the left and right sides to slide forward synchronously along the inside of the second guide seat. The second racks drive the already lifted bars through the connecting plate at the top. The entire support frame moves forward horizontally. When the bar is conveyed to the top of the guide wheel, a short-stroke cylinder drives the support frame to descend, precisely placing the bar on the guide wheel. Then, the output end of the long-stroke cylinder retracts to reset the support frame, preparing for the next pick-up and drop-off cycle. Each cycle places the bar on the frontmost idle guide wheel of the current discharge line. This method effectively avoids collisions or movement interference between subsequently placed bars and previously placed bars as they move forward, ensuring the smoothness and stability of the conveying process, while also allowing the bars to be arranged in sequence.

[0011] 2. By arranging the bars in an orderly manner on an inclined plate, they naturally roll forward and downward along the inclined surface to the bottom by their own weight. A support plate fixed to the front of the lower end of the inclined plate is used to receive the rolling bars, forming a temporary storage platform. A baffle plate vertically fixed to the front end of the top of the support plate blocks the bars, making it easier for the subsequent bracket to lift the bars temporarily stored on the support plate. Furthermore, when the bracket is lifted upward, the pointed structure at the top is inserted into the narrow gap between the bottom bar to be retrieved and the bar immediately above it. The pointed structure uses its inclined surface to slightly lift and push the upper bar aside, thereby ensuring that the groove only supports and lifts the bottom target bar. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the conveying mechanism in this utility model; Figure 3 This is a partial structural diagram of the pick-and-place component in this utility model; Figure 4 This is a schematic diagram of the feeding assembly in this utility model; Figure 5 This is a schematic diagram of the material discharge component in this utility model.

[0013] In the diagram: 1. Frame; 2. Conveying mechanism; 21. Feeding assembly; 211. Fixing part; 212. Inclined plate; 213. Support plate; 214. Baffle; 22. Picking and placing assembly; 221. Second guide seat; 222. Second rack; 223. Connecting plate; 224. Short-stroke cylinder; 225. Bracket; 226. First guide seat; 227. First rack; 228. Shaft; 229. First gear; 2210. Second gear; 2211. Long-stroke cylinder; 23. Discharge assembly; 231. Cross frame; 232. Wheel seat; 233. Guide wheel; 234. Shaft frame; 235. Roller; 236. Motor. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1 - Figure 5This utility model provides a technical solution: a bar conveying and limiting device, including a frame 1, on which a conveying mechanism 2 is provided for conveying bars, the conveying mechanism 2 including: The feeding assembly 21 is mounted on the frame 1 and is used for feeding bars; The pick-and-place assembly 22 includes a second guide seat 221 fixed on the left and right sides of the upper end inside the frame 1. A second rack 222 is slidably installed inside the second guide seat 221. A connecting plate 223 is fixed to the top and rear end of the second rack 222. A short-stroke cylinder 224 is installed at the lower end of the connecting plate 223. A bracket 225 is fixed to the output end above the short-stroke cylinder 224. A first guide seat 226 is fixed in the middle of the upper end inside the frame 1. A first rack 227 is slidably installed inside the first guide seat 226. A shaft 228 is rotatably installed between the left and right sides of the front of the upper end inside the frame 1. A first gear 229 is fixed in the middle of the outer wall of the shaft 228 and meshes with the first rack 227 for transmission. A second gear 2210 is fixed at both ends of the outer wall of the shaft 228 and meshes with the second rack 222 for transmission. A long-stroke cylinder 2211 is installed at the rear end of the frame 1 and is used to drive the first rack 227. The discharge assembly 23 is mounted on the frame 1 and is used for conveying bar stock.

[0016] In this embodiment, the output end of the short-stroke cylinder 224 drives the bracket 225 to lift upwards, lifting the bottommost single bar stacked on the support plate 213 and separating it from the remaining bars above. The output end of the long-stroke cylinder 2211 extends, driving the first rack 227 to slide forward along the inside of the first guide seat 226. The first rack 227 drives the first gear 229 meshing with it to rotate, thereby causing the shaft 228 to rotate synchronously. The second gears 2210 fixed at both ends of the shaft 228 rotate accordingly and mesh with and drive the second racks 222 on the left and right sides, causing them to slide forward synchronously along the inside of the second guide seat 221. The second racks 222 drive the bracket 225, which has lifted the bar, to move forward horizontally as a whole through the connecting plate 223 at the top. When the bar is conveyed to directly above the foremost guide wheel 233, the short-stroke cylinder 224 drives the bracket 225. The bar is lowered and precisely placed on the guide roller 233; then it is reset by retracting the output end of the long-stroke cylinder 2211, ready for the next pick-up and drop-off cycle; each cycle places the bar at the frontmost idle guide roller 233 position on the current discharge line. This method effectively avoids collisions or movement interference between the subsequently placed bars and the previously placed bars when moving forward, ensuring the smoothness and stability of the conveying process, while also allowing the bars to be arranged in sequence.

[0017] Specifically, the feeding assembly 21 includes a fixing part 211 fixed on the left and right sides of the rear end of the frame 1. An inclined plate 212 is fixed to the top rear end of the fixing part 211, a support plate 213 is fixed to the front of the lower end of the inclined plate 212, and a baffle 214 is fixed to the front of the top of the support plate 213.

[0018] In this embodiment, the rods can be arranged in an orderly manner on the inclined plate 212, and roll naturally forward and downward along the inclined surface to the bottom by their own weight. The support plate 213 fixed to the front of the lower end of the inclined plate 212 is used to receive the rolling rods, forming a temporary storage platform. The baffle 214 vertically fixed to the front end of the top of the support plate 213 blocks the rods, so that the rods temporarily stored on the support plate 213 can be easily lifted by the subsequent bracket 225.

[0019] Specifically, the discharge assembly 23 also includes several crossbeams 231 fixed inside the upper part of the frame 1 and arranged front to back. Several wheel seats 232 arranged left to right are fixed on the top of the crossbeams 231, and guide wheels 233 are rotatably installed on the upper part of the wheel seats 232.

[0020] In this embodiment, multiple crossbeams 231 fixed inside the upper part of the frame 1 provide support, and wheel seats 232 arranged on the left and right are set on the top of each crossbeam 231. The guide wheels 233 rotatably installed on the upper part of the wheel seats 232 together form a discharge conveyor line.

[0021] Specifically, the discharge assembly 23 also includes a shaft frame 234 fixed on the upper left side of the frame 1. A roller 235 is rotatably mounted between the front and rear ends of the shaft frame 234. A motor 236 is mounted at the rear end of the shaft frame 234 and is used to drive the roller 235.

[0022] In this embodiment, after the bar is placed on the guide wheel 233 by the pick-and-place component 22, the left end of the bar contacts the roller 235. The roller 235 is driven to rotate continuously by the output end of the motor 236. The rotating roller 235 drives the bar to be sent to the left along the guide wheel 233 to the next process by the friction generated with the end of the bar.

[0023] Specifically, the upper end of the bracket 225 is provided with a groove, and the top of the rear end of the groove is constructed into a pointed structure that can penetrate between adjacent bars.

[0024] In this embodiment, when the bracket 225 is lifted upward, the pointed structure at the top is inserted into the narrow gap between the bottom bar to be picked and the bar immediately above it. The pointed structure uses its inclined surface to slightly lift and push the bar above it, thereby ensuring that the groove only supports and lifts the bottom target bar.

[0025] Specifically, the circumferential side of roller 235 is fixedly covered with a rubber sleeve, and the outer surface of the sleeve is provided with a mesh texture.

[0026] In this embodiment, the rubber material combined with the mesh texture greatly improves the coefficient of friction, ensuring that the power can be effectively transmitted to the bar when the roller 235 rotates, and preventing slippage and free rotation.

[0027] The working principle and usage process of this utility model are as follows: First, the operator places multiple rods in an orderly manner on the inclined plate 212 of the feeding component 21. Under the action of gravity, the rods automatically roll down the inclined surface to the bottom and are received by the support plate 213. Finally, they are blocked and positioned by the baffle 214, forming a ready-to-be-picked state on the support plate 213. Then, the output end of the short-stroke cylinder 224 drives the bracket 225 to rise upwards. The pointed structure at the rear of the groove at the top of the bracket 225 is precisely inserted into the gap between the bottom bar and the top bar, and the inclined surface pushes the top bar aside during the ascent, thus ensuring that only a single bar is supported. Then, the output end of the long-stroke cylinder 2211 extends and drives the first rack 227 to slide forward along the inside of the first guide seat 226. The first rack 227 drives the first gear 229 meshing with it to rotate, thereby causing the shaft 228 to rotate synchronously. The second gear 2210 fixed at both ends of the shaft 228 rotates accordingly and meshes with the second racks 222 on the left and right sides, causing them to slide forward synchronously along the inside of the second guide seat 221. The second racks 222 drive the bracket 225, which has supported the bar, to move forward horizontally as a whole through the connecting plate 223 at the top. When the bar is delivered to the front guide wheel 233, the short-stroke cylinder 224... The drive bracket 225 descends, precisely placing the bar onto the guide wheel 233; then, the output end of the long-stroke cylinder 2211 retracts to reset, preparing for the next pick-up and drop-off cycle; each cycle places the bar at the frontmost idle guide wheel 233 position on the current discharge line. This method effectively avoids collisions or movement interference between subsequently placed bars and previously placed bars when moving forward, ensuring the smoothness and stability of the conveying process, while also allowing the bars to be arranged in sequence; Finally, after the bar is placed on the guide wheel 233 by the pick-and-place assembly 22, the left end of the bar contacts the roller 235. The roller 235 is driven to rotate continuously by the output end of the motor 236. The rotating roller 235 drives the bar to be sent to the left along the guide wheel 233 to the next process by the friction generated with the end of the bar.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bar conveying and limiting device, comprising a frame (1), characterized in that: The frame (1) is provided with a conveying mechanism (2) for conveying bars. The conveying mechanism (2) includes: The feeding assembly (21) is mounted on the frame (1) and is used for feeding bar stock; The pick-and-place assembly (22) includes a second guide seat (221) fixed on the left and right sides of the upper end inside the frame (1). A second rack (222) is slidably installed inside the second guide seat (221). A connecting plate (223) is fixed to the top and rear end of the second rack (222). A short-stroke cylinder (224) is installed at the lower end of the connecting plate (223). A bracket (225) is fixed to the output end above the short-stroke cylinder (224). A first guide seat (226) is fixed in the middle of the upper end inside the frame (1). 26) A first rack (227) is slidably installed inside the frame (1) between the left and right sides at the upper front. A shaft (228) is rotatably installed between the left and right sides at the upper front of the frame (1). A first gear (229) is fixed in the middle of the outer wall of the shaft (228) and meshes with the first rack (227) for transmission. A second gear (2210) is fixed in both the left and right ends of the outer wall of the shaft (228) and meshes with the second rack (222) for transmission. A long-stroke cylinder (2211) is installed at the rear end of the frame (1) and is used to drive the first rack (227). The discharge assembly (23) is mounted on the frame (1) and is used for bar conveying.

2. The bar conveying and limiting device according to claim 1, characterized in that: The feeding assembly (21) includes a fixing part (211) fixed on the left and right sides of the rear end of the frame (1). An inclined plate (212) is fixed at the top rear end of the fixing part (211), a support plate (213) is fixed at the front of the lower end of the inclined plate (212), and a baffle (214) is fixed at the front of the top of the support plate (213).

3. The bar conveying and limiting device according to claim 1, characterized in that: The discharge assembly (23) also includes several cross frames (231) fixed inside the upper part of the frame (1) and arranged in front and back. Several wheel seats (232) are fixed on the top of the cross frames (231) and arranged in the left and right. Guide wheels (233) are rotatably installed on the upper end of the wheel seats (232).

4. The bar conveying and limiting device according to claim 1, characterized in that: The discharge assembly (23) also includes a shaft frame (234) fixed on the left side of the upper end of the frame (1). A roller (235) is rotatably installed between the front and rear ends of the shaft frame (234). A motor (236) is installed at the rear end of the shaft frame (234) and is used to drive the roller (235).

5. The bar conveying and limiting device according to claim 1, characterized in that: The bracket (225) has a groove at its upper end, and the top of the rear end of the groove is constructed into a pointed structure that can penetrate between adjacent bars.

6. The bar conveying and limiting device according to claim 4, characterized in that: The roller (235) is fixedly covered with a rubber sleeve, and the outer surface of the sleeve is provided with a mesh texture.

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