Metal bar polishing equipment

Abstract

The invention discloses metal bar polishing equipment which comprises a supporting frame, two lead screws, a first driving mechanism, a feeding frame, two limiting devices, a polishing device and two transmission parts. The two lead screws are rotationally arranged on the supporting frame side by side, one ends of the two lead screws are connected through a first belt transmission mechanism, and the other ends of the two lead screws are connected through a second belt transmission mechanism; the first driving mechanism is arranged on the supporting frame, and the output end of the first driving mechanism is connected with one end of one lead screw through the second belt transmission mechanism. The feeding frame is arranged on the supporting frame, and a discharging opening of the feeding frame is close to the threaded groove in the input end of the lead screw. The two limiting devices are symmetrically arranged on the supporting frame and located on the outer sides of the two lead screws. Therefore, the multiple metal bars can be polished at the same time, automatic feeding and discharging can be carried out uninterruptedly, the polishing efficiency is remarkably improved, the output in unit time is greatly increased, and the labor cost is saved.

Description

Technical Field

[0001] This application relates to the technical field of metal bar processing, and more particularly to a metal bar polishing device. Background Technology

[0002] Metal bars, due to their simple, convenient, and quick processing and installation, have become an indispensable component of building structural systems, and have thus permeated various sectors of national economic construction. In the machinery manufacturing field, based on diverse practical needs, metal bars often require a series of precise processing steps such as cutting, grinding, and drilling. After these preliminary processing steps are completed using various processing equipment, polishing becomes a crucial step to further improve the surface quality and smoothness of the metal bars.

[0003] However, in existing metal bar polishing technologies, taking the metal bar polishing device disclosed in publication number CN112775816A as an example, although it has achieved the polishing function of metal bars to a certain extent, it still has many limitations that urgently need to be addressed. Firstly, in actual operation, this device can only polish a single metal bar at a time, which greatly limits processing efficiency and cannot meet the needs of large-scale production operations. Secondly, in terms of operation, this device relies excessively on manual assistance; from loading to unloading the bars, manual intervention is required, which not only consumes a large amount of manpower but also increases production costs. Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, one objective of this application is to provide a metal bar polishing device that can polish multiple metal bars simultaneously and can automatically load and unload them without interruption. This not only significantly improves polishing efficiency and increases output per unit time, but also saves labor costs.

[0006] To achieve the above objectives, a first aspect of this application provides a metal bar polishing device, comprising a support frame, two lead screws, a first drive mechanism, a loading rack, two limiting devices, a polishing device, and two transmission components. The two lead screws are arranged side-by-side and rotatably on the support frame, with one end of each lead screw connected via a first belt drive mechanism. The first drive mechanism is mounted on the support frame, and its output end is connected to one end of one of the lead screws via a second belt drive mechanism. The loading rack is mounted on the support frame, with its outlet located near the threaded groove at the input end of the lead screw. The two limiting devices are symmetrically arranged on the support frame and located outside the two lead screws. Each limiting device includes a support base, a chain drive mechanism, multiple clamping mechanisms, and a limiting mechanism. The support base is located near the corresponding... The lead screw is fixedly mounted on the support frame, and the chain drive mechanism is rotatably mounted in the middle of the support base. Annular slides are respectively provided on the support base on the upper and lower sides of the chain drive mechanism. Multiple clamping mechanisms are distributed around the support base, and each clamping mechanism is detachably connected to the chain drive mechanism. Each clamping mechanism is slidably connected to two of the annular slides, and each clamping mechanism intermittently contacts its corresponding lead screw. A limiting mechanism is fixedly mounted on the support base near the input end of the lead screw, and intermittently contacts its corresponding clamping mechanism. A polishing device is mounted on the support frame, positioned above the middle of the two lead screws. Two transmission components are symmetrically mounted on the polishing device, and each transmission component intermittently contacts its corresponding clamping mechanism.

[0007] The metal bar polishing equipment of this application embodiment can polish multiple metal bars simultaneously and can automatically load and unload them without interruption. This not only significantly improves polishing efficiency and increases output per unit time, but also saves labor costs.

[0008] In addition, the metal bar polishing equipment proposed in this application may also have the following additional technical features: In one embodiment of this application, the chain drive mechanism includes two sprockets and a chain, wherein the two sprockets are arranged side by side and rotatably mounted on the support base; and the chain is sleeved on the two sprockets.

[0009] Further, the clamping mechanism includes a support plate, a drive rod, two sliders, a positioning rod, and a clamping component. One end of the drive rod is fixedly connected to one side of the support plate, and the other end is fixedly connected to the chain. The two sliders are slidably connected to corresponding annular tracks, and each slider is fixedly connected to one side of the support plate via a connecting rod. The positioning rod is vertically fixed to the other side of the support plate, and intermittently contacts the threaded groove of the corresponding lead screw. The clamping component includes a support rod, a cylinder, a spring, two guide rods, a pressure plate, and a gear. One end of the rod is fixedly connected to the cylinder, and the other end of the support rod movably passes through the support plate; the spring is sleeved on the support rod, and one end of the spring is fixedly connected to the cylinder, and the other end of the spring is fixedly connected to the other side of the support plate; two guide rods are respectively arranged on both sides of the support rod, and one end of the guide rod is fixedly connected to the cylinder, and the other end of the guide rod movably passes through the support plate; the pressure plate is rotatably arranged inside the cylinder, and one end of the pressure plate extends to the outside of the cylinder; the gear is sleeved and fixed on the pressure plate, and the gear is in intermittent contact with the corresponding transmission component.

[0010] Furthermore, the limiting mechanism includes a fan-shaped limiting cover and two guide plates, wherein the fan-shaped limiting cover is fixedly disposed at the end of the support base near the input end of the lead screw; the two guide plates are integrally formed and connected to both sides of the fan-shaped limiting cover, and the end of the guide plate away from the fan-shaped limiting cover extends toward the outer side of the fan-shaped limiting cover, wherein the fan-shaped limiting cover and the two guide plates are intermittently connected to the corresponding pressure plate.

[0011] Furthermore, the polishing device includes two U-shaped frames, two upright plates, two drive rollers, a polishing belt, and a second drive mechanism. The two U-shaped frames are symmetrically arranged on the support frame and located on both sides of the two lead screws. The two upright plates are respectively vertically arranged on the corresponding U-shaped frames. The two drive rollers are arranged side by side and rotatably between the two upright plates. The polishing belt is sleeved on the two drive rollers. The second drive mechanism is arranged on one of the upright plates, and the output end of the second drive mechanism is connected to one end of the shaft of one of the drive rollers.

[0012] Furthermore, the transmission component is a rack, which intermittently meshes with the corresponding gear.

[0013] Compared with the prior art, the beneficial effects of this application are: it can polish multiple metal bars at the same time and can automatically load and unload them without interruption. This not only significantly improves polishing efficiency and increases output per unit time, but also saves labor costs.

[0014] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 A three-dimensional representation of a metal bar polishing apparatus according to an embodiment of this application. Figure 1 ; Figure 2 A three-dimensional representation of a metal bar polishing apparatus according to an embodiment of this application. Figure 2 ; Figure 3 This is a partial structural diagram of a metal bar polishing apparatus according to an embodiment of this application. Figure 1 ; Figure 4 This is a partial structural diagram of a metal bar polishing apparatus according to an embodiment of this application. Figure 2 ; Figure 5 This is a cross-sectional structural schematic diagram of a support base and chain drive mechanism according to an embodiment of this application; Figure 6 This is a schematic diagram of the structure of a limiting device according to an embodiment of this application; Figure 7 This is a schematic diagram of the clamping mechanism according to an embodiment of the present application.

[0016] As shown in the figure: 10. Support frame; 11. First belt drive mechanism; 12. Second belt drive mechanism; 20. Lead screw; 30. First drive mechanism; 40. Loading rack; 50. Limiting device; 51. Support base; 52. Chain drive mechanism; 521. Sprocket; 522. Chain; 53. Clamping mechanism; 531. Support plate; 532. Drive rod; 533. Slider; 534. Positioning rod; 535. Clamping component; 5351. Support rod; 5352. Cylinder; 5353. Spring; 5354. Guide rod; 5355. Pressure plate; 5356. Gear; 54. Limiting mechanism; 541. Fan-shaped limiting cover; 542. Guide plate; 501. Annular slide; 60. Polishing device; 61. U-shaped frame; 62. Vertical plate; 63. Drive roller; 64. Grinding belt; 65. Second drive mechanism; 70. Transmission component. Detailed Implementation

[0017] The embodiments of this application 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 application, and should not be construed as limiting this application.

[0018] The metal bar polishing apparatus of this application embodiment will now be described with reference to the accompanying drawings.

[0019] like Figures 1-7 As shown, the metal bar polishing equipment of this application embodiment includes a support frame 10, two lead screws 20, a first drive mechanism 30, a feeding frame 40, two limiting devices 50, a polishing device 60, and two transmission components 70.

[0020] Two lead screws 20 are arranged side-by-side and rotatably on the support frame 10. The two lead screws 20 are used to feed the metal rod to be polished, and one end of each lead screw 20 is connected via a first belt drive mechanism 11. A first drive mechanism 30 is mounted on the support frame 10, and the output end of the first drive mechanism 30 is connected to one end of one of the lead screws 20 via a second belt drive mechanism 12. It should be noted that the first drive mechanism 30 described in this embodiment can be a drive motor.

[0021] It should be noted that the first belt drive mechanism 11 described in this embodiment may include two first pulleys and a first belt. The two first pulleys are respectively sleeved and fixed to one end of a corresponding lead screw 20, and the first belt is sleeved on the two first pulleys. The second belt drive mechanism 12 may include two second pulleys and a second belt. One second pulley is sleeved and fixed to one end of one lead screw 20, and the other second pulley is sleeved and fixed to the output end of the first drive mechanism 30. The second belt is sleeved on the two second pulleys. It can be understood that when the first drive mechanism 30 drives one lead screw 20 to rotate via the second belt drive mechanism 12, that lead screw 20 drives the other lead screw 20 to rotate synchronously via the first belt drive mechanism 11. Thus, the metal bar to be polished is conveyed through the two synchronously rotating lead screws 20.

[0022] The feeding rack 40 is mounted on the support frame 10, and the discharge port of the feeding rack 40 is located near the threaded groove of the input end of the lead screw 20. It should be noted that the input end of the lead screw 20 described in this embodiment refers to the feeding end, while the output end of the lead screw 20 refers to the unloading end.

[0023] It should be noted that the material support plate in the feeding rack 40 described in this embodiment is inclined, that is, the height of one end of the material support plate near the input end of the lead screw 20 is lower than the height of the other end.

[0024] Two limiting devices 50 are symmetrically arranged on the support frame 10 and located outside the two lead screws 20. Each limiting device 50 may include a support base 51, a chain drive mechanism 52, multiple clamping mechanisms 53 and a limiting mechanism 54.

[0025] The support base 51 is located close to the corresponding lead screw 20 and is fixedly mounted on the support frame 10. The chain drive mechanism 52 is rotatably mounted in the middle of the support base 51. Annular slide rails 501 are respectively opened on the support base 51 and on the upper and lower sides of the chain drive mechanism 52.

[0026] Multiple clamping mechanisms 53 are distributed around the support base 51. For example, there may be 22, 23, 24, 25, 26, 28, 29, or 30 clamping mechanisms 53, etc. The specific number used can be selected according to the actual situation (e.g., 28 clamping mechanisms 53, etc.), and is not limited here. Each clamping mechanism 53 is detachably connected to the chain drive mechanism 52, slidably connected to two annular slide rails 501, and intermittently in contact with the corresponding lead screw 20. The lead screw drives the chain drive mechanism 52 to move through the multiple clamping mechanisms 53.

[0027] It should be noted that the distance between any two adjacent clamping mechanisms 53 described in this embodiment is equal to the distance between any two adjacent threaded grooves on the lead screw 20.

[0028] The limiting mechanism 54 is fixedly mounted on the support base 51 near the input end of the lead screw 20, and the limiting mechanism 54 is in intermittent contact with the corresponding clamping mechanism 53.

[0029] The polishing device 60 is mounted on the support frame 10 and positioned above the middle of the two lead screws 20. Two transmission components 70 are symmetrically arranged on the polishing device 60. The polishing device 60 is used to simultaneously polish multiple metal bars to be polished during the conveying process, and the two transmission components 70 are in intermittent contact with the corresponding clamping mechanisms 53.

[0030] Specifically, when polishing metal rods is required, the relevant personnel first place a batch of metal rods to be polished on the loading rack 40. At this time, the metal rods roll into the threaded grooves at the input ends of the two lead screws 20 under their own gravity. Subsequently, the personnel can control the first drive mechanism 30 to drive one of the lead screws 20 to rotate through the second belt drive mechanism 12. The rotating lead screw 20 drives the other lead screw 20 to rotate synchronously through the first belt drive mechanism 11. The two synchronously rotating lead screws 20 gradually transport the metal rods to be polished on the loading rack 40 toward the output ends of the two lead screws 20, so that multiple metal rods to be polished can be arranged equidistantly on the two lead screws 20 and gradually move toward the polishing device 60 as the lead screws 20 rotate.

[0031] At the same time, the two rotating lead screws 20 respectively drive the multiple clamping mechanisms 53 in the corresponding limiting devices 50 to perform circumferential motion around the support base 51. When the two clamping mechanisms 53 in the two limiting devices 50 approach the two ends of a metal bar to be polished located on the two lead screws 20, the two clamping mechanisms 53 clamp and limit the metal bar to be polished.

[0032] The following explanation uses the polishing process of a metal bar to be polished as an example.

[0033] When the metal bar to be polished moves to the bottom of the polishing device 60, the two transmission components 70 come into contact with the two clamping mechanisms 53 that hold the metal bar to be polished. At this time, the two transmission components 70 drive the two clamping mechanisms 53 to rotate the metal bar to be polished (that is, to clamp the metal bar to be polished and drive it to rotate).

[0034] At the same time, the staff can control the polishing device 60 to grind and polish the metal rods to be polished during the movement and rotation process (it should be noted that the polishing device 60 described in this embodiment can cover multiple metal rods to be polished at the same time, that is, it can grind and polish multiple metal rods to be polished that are equidistantly arranged on two lead screws 20 at the same time).

[0035] When the metal bar to be polished leaves the polishing device 60, the polishing of the metal bar is completed. The polished metal bar is discharged from the output end of the two lead screws 20 as the two lead screws 20 rotate. Thus, multiple metal bars can be polished simultaneously, and automatic loading and unloading can be performed without interruption. This not only significantly improves polishing efficiency and greatly increases output per unit time, but also saves labor costs.

[0036] To clearly illustrate the previous embodiment, in one embodiment of this application, as follows: Figure 5 and Figure 6As shown, the chain drive mechanism 52 may include two sprockets 521 and a chain 522, wherein the two sprockets 521 are arranged side by side and rotatably mounted on the support base 51. The chain 522 is sleeved on the two sprockets 521.

[0037] It is understandable that when the rotating lead screw 20 drives one of the clamping mechanisms 53 to move, the clamping mechanism 53 can drive the chain 522 to rotate around the two sprockets 521, and the rotating chain 522 drives the other clamping mechanisms 53 to move synchronously around the support base 51.

[0038] Furthermore, in one embodiment of this application, such as Figure 4 , Figure 6 and Figure 7 As shown, the clamping mechanism 53 may include a support plate 531, a drive rod 532, two sliders 533, a positioning rod 534, and a clamping component 535.

[0039] One end of the drive rod 532 is fixedly connected to one side of the support plate 531, and the other end of the drive rod 532 is fixedly connected to the chain 522. Two sliders 533 are slidably connected to corresponding annular slide rails 501, and both sliders 533 are fixedly connected to one side of the support plate 531 via connecting rods. It should be noted that the two annular slide rails 501 described in this embodiment are slide rails capable of limiting the movement of the sliders 533; that is, when the slider 533 slides within the annular slide rail 501, the annular slide rail 501 can prevent the slider 533 from sliding out of the annular slide rail 501.

[0040] The positioning rod 534 is vertically fixed on the other side of the support plate 531, and the positioning rod 534 is in intermittent contact with the thread groove of the corresponding lead screw 20.

[0041] It should be noted that, as each clamping mechanism 53 described in this embodiment moves along the annular slide 501, the positioning rod 534 in the clamping mechanism 53 goes from contacting the threaded groove of the lead screw 20 to non-contacting and then back to contacting, and so on, repeating continuously.

[0042] The clamping component 535 may include a support rod 5351, a cylinder 5352, a spring 5353, two guide rods 5354, a pressure plate 5355, and a gear 5356.

[0043] One end of the support rod 5351 is fixedly connected to the cylinder 5352, and the other end of the support rod 5351 movably passes through the support plate 531. The spring 5353 is sleeved on the support rod 5351, and one end of the spring 5353 is fixedly connected to the cylinder 5352, while the other end of the spring 5353 is fixedly connected to the other side of the support plate 531.

[0044] Two guide rods 5354 are respectively disposed on both sides of the support rod 5351, with one end of the guide rod 5354 fixedly connected to the cylinder 5352 and the other end of the guide rod 5354 movably penetrating through the support plate 531. A pressure plate 5355 is rotatably disposed inside the cylinder 5352, with one end of the pressure plate 5355 extending to the outside of the cylinder 5352. It should be noted that, in this embodiment, the pressure plate 5355 is rotatably connected to the inner wall of the cylinder 5352 via a rotating shaft.

[0045] Gear 5356 is sleeved and fixed on pressure plate 5355, and gear 5356 is in intermittent contact with the corresponding transmission component 70.

[0046] In this embodiment, the transmission component 70 may be a rack, which intermittently meshes with the corresponding gear 5356.

[0047] Furthermore, in one embodiment of this application, such as Figures 2-4 and Figure 6 As shown, the limiting mechanism 54 may include a fan-shaped limiting cover 541 and two guide plates 542, wherein the fan-shaped limiting cover 541 is fixedly disposed at the end of the support base 51 near the input end of the lead screw 20.

[0048] Two guide vanes 542 are integrally formed and connected to the two sides of the fan-shaped limiting cover 541, and the end of the guide vane 542 away from the fan-shaped limiting cover 541 extends toward the outside of the fan-shaped limiting cover 541. The fan-shaped limiting cover 541 and the two guide vanes 542 are intermittently connected to the corresponding pressure plate 5355.

[0049] Specifically, when the two synchronously rotating lead screws 20 drive the metal bar to be polished to move toward the polishing device 60, the two rotating lead screws 20 simultaneously drive the corresponding positioning rods 534 to move the support plate 531, drive rod 532, two sliders 533 and clamping component 535 along the annular slide 501. Meanwhile, the moving drive rod 532 simultaneously drives the remaining clamping mechanisms 53 that are not in contact with the lead screws 20 to move synchronously through the chain 522.

[0050] When the clamping component 535 in the clamping mechanism 53, which is not in contact with the lead screw 20, moves toward the lead screw 20 along the annular slide 501 and passes through the limiting mechanism 54, the pressure plate 5355 in the clamping component 535 first contacts one of the guide plates 542 in the limiting mechanism 54. Since the guide plate 542 is arranged to expand outward, when the pressure plate 5355 contacts the fixed guide plate 542, the pressure plate 5355 is subjected to extrusion force and drives the cylinder 5352 and the gear 5356 to retract toward the support plate 531. The moving cylinder 5352 pushes the support rod 5351 and the two guide rods 5354 to move on the support plate 531 and compress the spring 5353.

[0051] When the moving pressure plate 5355 passes one of the guide plates 542 and the fan-shaped limiting cover 541 and moves out from the other guide plate 542, the pressure plate 5355 loses the pressure force and is reset and extended under the tension of the spring 5353. At the moment the pressure plate 5355 disengages from the guide plate 542, the positioning rod 534, which moves together with the pressure plate 5355, is inserted into the thread groove of the same lead screw 20 that conveys the metal bar to be polished.

[0052] At this time, when the metal bar to be polished is between the clamping mechanisms 53 in the two limiting devices 50, the pressure plates 5355 in the two clamping mechanisms 53 abut against both ends of the metal bar to be polished under the action of spring tension, and clamp and limit the metal bar to be polished.

[0053] As the metal bar to be polished and the two clamping mechanisms 53 move synchronously toward the polishing device 60, when the two clamping mechanisms 53 pass through the corresponding transmission components 70, the gear 5356 meshes with the fixed transmission component 70. As the clamping mechanism 53 moves, the gear 5356 drives the pressure plate 5355 to rotate, and the rotating pressure plates 5355 drive the clamped metal bar to be polished to rotate.

[0054] When the rotating metal bar to be polished passes through the polishing device 60, the polishing device 60 grinds the rotating metal bar.

[0055] In one embodiment of this application, such as Figures 1-3 As shown, the polishing device 60 may include two U-shaped frames 61, two vertical plates 62, two drive rollers 63, a polishing belt 64, and a second drive mechanism 65.

[0056] Two U-shaped frames 61 are symmetrically arranged on the support frame 10 and located on both sides of the two lead screws 20.

[0057] Two vertical plates 62 are respectively vertically mounted on corresponding U-shaped frames 61, wherein the bottom walls of the two vertical plates 62 are fixedly connected to corresponding transmission components 70. Two drive rollers 63 are arranged side by side and rotatably between the two vertical plates 62, and a grinding belt 64 is sleeved on the two drive rollers 63. It should be noted that the grinding belt 64 described in this embodiment can simultaneously cover multiple sequentially adjacent threaded grooves on the lead screw 20, that is, the grinding belt 64 can simultaneously grind and polish multiple metal bars to be polished.

[0058] The second drive mechanism 65 is mounted on one of the vertical plates 62, and the output end of the second drive mechanism 65 is connected to one end of the shaft of one of the drive rollers 63.

[0059] It should be noted that the second drive mechanism 65 described in this embodiment may be a servo motor.

[0060] Understandably, when polishing is required on the metal rods to be polished via the polishing belt 64, the operator can control the second drive mechanism 65 to drive the drive roller 63 to rotate the polishing belt 64. The rotating polishing belt 64 polishes the metal rods to be polished during the rotation process. Since the polishing belt 64 can cover multiple metal rods to be polished conveyed by the lead screw 20 at one time, the rotating polishing belt 64 can simultaneously polish multiple metal rods to be polished via the polishing belt 64.

[0061] When the metal bar to be polished is removed from the polishing belt 64, the polishing of the metal bar is completed. The polished metal bar moves toward the output end of the lead screw 20 as the lead screw 20 rotates. During this process, the two clamping mechanisms 53 that hold the metal bar move around the corresponding annular slide rails 501, and the clamping mechanisms 53 gradually disengage from the lead screw 20, releasing the clamping limit on the polished metal bar.

[0062] As the lead screw 20 rotates, the polished metal bar is removed from the output end of the lead screw 20 and fed out.

[0063] Optionally, to facilitate the application of the grinding belt 64 to grinding metal bars of different specifications (different diameters), the polishing device 60 can be configured to be height-adjustable and movable, while the transmission component 70 can be fixed on the support frame 10. This is achieved by installing a telescopic mechanism above the polishing device 60, with the output end of the telescopic mechanism connected to two U-shaped frames 61 via a connecting plate. The telescopic mechanism described in this embodiment can be a cylinder, a hydraulic cylinder, or an electric telescopic rod.

[0064] In summary, the metal bar polishing equipment of this application embodiment can polish multiple metal bars simultaneously and can automatically load and unload them without interruption. This not only significantly improves polishing efficiency and increases output per unit time, but also saves labor costs.

[0065] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0067] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A metal bar polishing device, characterized in that, It includes a support frame, two lead screws, a first drive mechanism, a feeding rack, two limiting devices, a polishing device, and two transmission components, among which, Two lead screws are arranged side by side and rotatably mounted on the support frame, and one end of the two lead screws is connected by a first belt drive mechanism. The first drive mechanism is mounted on the support frame, and the output end of the first drive mechanism is connected to one end of one of the lead screws through a second belt drive mechanism. The feeding rack is mounted on the support frame, and the discharge port of the feeding rack is located near the threaded groove of the lead screw input end; The two limiting devices are symmetrically arranged on the support frame and located outside the two lead screws. Each limiting device includes a support base, a chain drive mechanism, multiple clamping mechanisms, and a limiting mechanism. The support base is located close to the corresponding lead screw and fixedly mounted on the support frame. The chain drive mechanism is rotatably mounted in the middle of the support base. Annular slides are respectively provided on the support base and on the upper and lower sides of the chain drive mechanism. Multiple clamping mechanisms are distributed around the support base, and each of the multiple clamping mechanisms is detachably connected to the chain drive mechanism. Each of the multiple clamping mechanisms is slidably connected to the two annular slides, and each of the multiple clamping mechanisms is intermittently in contact with the corresponding lead screw. The limiting mechanism is fixedly mounted on the support base near the input end of the lead screw, and the limiting mechanism is intermittently in contact with the corresponding clamping mechanism. The polishing device is mounted on the support frame and positioned above the middle of the two lead screws; The two transmission components are symmetrically arranged on the polishing device, and the two transmission components are in intermittent contact with the corresponding clamping mechanism.

2. The metal bar polishing equipment according to claim 1, characterized in that, The chain drive mechanism includes two sprockets and a chain, wherein, The two sprockets are arranged side by side and rotatably mounted on the support base; The chain is fitted onto the two sprockets.

3. The metal bar polishing equipment according to claim 2, characterized in that, The clamping mechanism includes a support plate, a drive rod, two sliders, a positioning rod, and clamping components, wherein... One end of the drive rod is fixedly connected to one side of the support plate, and the other end of the drive rod is fixedly connected to the chain; The two sliders are slidably connected to the corresponding annular slide rails, and the two sliders are fixedly connected to one side of the support plate via connecting rods. The positioning rod is vertically fixed on the other side of the support plate, and the positioning rod is in intermittent contact with the thread groove of the corresponding lead screw; The clamping component includes a support rod, a cylinder, a spring, two guide rods, a pressure plate, and gears, wherein... One end of the support rod is fixedly connected to the cylinder, and the other end of the support rod movably passes through the support plate; The spring is sleeved on the support rod, and one end of the spring is fixedly connected to the cylinder, while the other end of the spring is fixedly connected to the other side of the support plate. The two guide rods are respectively disposed on both sides of the support rod, and one end of the guide rod is fixedly connected to the cylinder, while the other end of the guide rod movably passes through the support plate; The pressure plate is rotatably disposed inside the cylinder, and one end of the pressure plate extends to the outside of the cylinder; The gear is sleeved and fixed on the pressure plate, and the gear is in intermittent contact with the corresponding transmission component.

4. The metal bar polishing equipment according to claim 3, characterized in that, The limiting mechanism includes a fan-shaped limiting cover and two guide plates, wherein... The fan-shaped limiting cover is fixedly installed at the end of the support base near the input end of the lead screw; The two guide plates are integrally formed and connected to both sides of the fan-shaped limiting cover, and the end of the guide plate away from the fan-shaped limiting cover extends toward the outside of the fan-shaped limiting cover. The fan-shaped limiting cover and the two guide plates are intermittently connected to the corresponding pressure plate.

5. The metal bar polishing equipment according to claim 1, characterized in that, The polishing device includes two U-shaped frames, two vertical plates, two drive rollers, a polishing belt, and a second drive mechanism. The two U-shaped frames are symmetrically arranged on the support frame and located on both sides of the two lead screws; The two upright plates are respectively vertically mounted on the corresponding U-shaped frame; The two drive rollers are arranged side-by-side and rotatably between the two vertical plates; The grinding belt is sleeved on the two drive rollers; The second drive mechanism is disposed on one of the upright plates, and the output end of the second drive mechanism is connected to one end of the shaft of one of the drive rollers.

6. The metal bar polishing equipment according to claim 3, characterized in that, The transmission component is a rack, which intermittently meshes with the corresponding gear.

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