Automatic steel bar sleeve tapping machine facilitating collection of steel bar sleeve and tapping scraps

Abstract

The utility model belongs to the technical field of application of steel bar sleeve production equipment, and particularly relates to an automatic tapping machine for a steel bar sleeve, which is convenient for collecting the steel bar sleeve and tapping scraps. Comprising a rack and a working table arranged on the rack, a tapping assembly is arranged above the working table, a three-jaw chuck is arranged on the working table, the three-jaw chuck is arranged below the tapping assembly, the three-jaw chuck is an automatic three-jaw chuck, a material leakage hole is formed in the working table, the material leakage hole and the three-jaw chuck are coaxially arranged, and the tapping assembly is arranged on the working table. Due to the fact that the automatic three-jaw chuck and the leakage hole are arranged in a matched mode, steel bar sleeves and tapping chippings are leaked in the leakage hole, the steel bar sleeves are collected through the climbing conveying belt by means of the guide plate, the tapping chippings are collected through the chipping outlet hole by means of the waste chipping collecting groove, and the tapping chippings are discharged through the chipping outlet hole. And discharging and material collection are facilitated, and meanwhile the collection cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of application technology of rebar sleeve production equipment, and in particular relates to an automatic tapping machine for rebar sleeves that facilitates the collection of rebar sleeves and tapping waste. Background Technology

[0002] A rebar sleeve, also known as a rebar connector, is a connecting component primarily used to connect rebars and has internal threads corresponding to the threaded rebar. In other words, the rebar sleeve connects to the rebar primarily through its internal threads. Therefore, during the production process of rebar sleeves, the inner wall of the sleeve needs to be tapped to create these internal threads.

[0003] The existing rebar sleeve tapping machine mainly involves manually or mechanically placing the rebar sleeve to be processed on the three-jaw chuck below the tapping assembly. After tapping is completed, the rebar sleeve is removed from the three-jaw chuck and replaced with a new rebar sleeve.

[0004] Since the steel bar sleeves are either manually removed or picked up by a robotic arm after processing, there are problems of low manual efficiency or high cost of using robotic arms. Utility Model Content

[0005] This utility model addresses the technical problems existing in automatic tapping machines for rebar sleeves by proposing an automatic tapping machine for rebar sleeves that is reasonably designed, simple in structure, easy to process, low in cost, and highly efficient in production, and facilitates the collection of rebar sleeves and tapping waste.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides an automatic tapping machine for rebar sleeves that facilitates the collection of rebar sleeves and tapping waste. It includes a frame and a worktable mounted on the frame. A tapping assembly is mounted above the worktable, and a three-jaw chuck is mounted on the worktable below the tapping assembly. The three-jaw chuck is an automatic three-jaw chuck. A material leakage hole is provided on the worktable, coaxially with the three-jaw chuck. A guide plate is mounted on the frame, positioned below the material leakage hole. The guide plate is rotatable on the frame. A waste collection trough is located below the guide plate, and a screw conveyor mechanism is installed within the waste collection trough. The waste collection trough is inclined below the guide plate, and a chip discharge hole is located at the top of the waste collection trough. A climbing conveyor belt is mounted on the frame away from the chip discharge hole, allowing the rebar sleeve to be conveyed to the climbing conveyor belt via the guide plate.

[0007] Preferably, the frame is also equipped with an automatic loading mechanism and an automatic feeding mechanism. The automatic loading mechanism includes a loading trough inclinedly mounted on the worktable and a baffle at the bottom of the loading trough. The loading trough includes a horizontal part mounted on the worktable and an inclined part at one end of the horizontal part. The horizontal part is unobstructed on both sides. The baffle is located at the end of the horizontal part away from the inclined part. A pusher cylinder is located on one side of the horizontal part. A receiving bucket is mounted on the worktable and located on the side of the horizontal part away from the pusher cylinder. The receiving bucket passes through the worktable and is located in front of a three-jaw chuck. The axis of the receiving bucket and the axis of the three-jaw chuck are on the same horizontal line. The automatic feeding mechanism includes a receiving column for extending into the receiving bucket, a lifting cylinder for controlling the lifting of the receiving column, and a fixed seat for placing the lifting cylinder. The frame is also equipped with a pushing cylinder. The power end of the pushing cylinder is connected to the fixed seat. The pushing cylinder enables the fixed seat to move back and forth between the discharge hole and the receiving bucket.

[0008] Preferably, the receiving column is an air-expanding shaft.

[0009] Preferably, the bottom of the receiving column is provided with a connecting seat, the width of which is greater than the diameter of the sleeve of the rebar to be tapped.

[0010] Preferably, the inner diameter of the receiving hopper includes a reduced diameter section and a uniform diameter section disposed below the reduced diameter section, wherein the diameter of the reduced diameter section gradually decreases from top to bottom until it is consistent with the diameter of the uniform diameter section.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] This utility model provides an automatic tapping machine for rebar sleeves that facilitates the collection of rebar sleeves and tapping waste. By coordinating an automatic three-jaw chuck with a material leakage hole, the rebar sleeve and tapping waste are discharged through the leakage hole. The rebar sleeve is collected by a climbing conveyor belt using a guide plate, and the tapping waste is collected through a waste collection trough. This facilitates material feeding and collection, while reducing collection costs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are 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 1This is a structural schematic diagram of an automatic tapping machine for rebar sleeves that facilitates the collection of rebar sleeves and tapping waste provided in Example 1;

[0015] Figure 2 This is a structural schematic diagram from another angle of the automatic tapping machine for rebar sleeves that facilitates the collection of rebar sleeves and tapping waste provided in Example 1.

[0016] Figure 3 This is a front view of an automatic rebar sleeve tapping machine provided in Example 1, which facilitates the collection of rebar sleeves and tapping waste.

[0017] Figure 4 A side view of the automatic tapping machine for rebar sleeves provided in Example 1, which facilitates the collection of rebar sleeves and tapping waste.

[0018] Figure 5 A cross-sectional view of the receiving bucket provided in Example 1;

[0019] In the above figures, 1. Frame; 11. Workbench; 12. Tapping assembly; 13. Three-jaw chuck; 14. Guide plate; 2. Automatic loading mechanism; 21. Loading trough; 211. Horizontal section; 212. Inclined section; 22. Baffle; 23. Pushing cylinder; 24. Receiving bucket; 241. Diameter reduction section; 242. Diameter equalization section; 3. Automatic feeding mechanism; 31. Receiving column; 32. Lifting cylinder; 33. Fixed seat; 34. Pushing cylinder; 35. Connecting seat; 4. Waste chip collection trough; 41. Screw conveyor mechanism; 42. Chip outlet; 5. Climbing conveyor belt. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1, such as Figures 1-5 As shown, this embodiment aims to reduce the processing cost and improve processing efficiency after tapping the rebar sleeve. To this end, this embodiment provides a frame 1 and a workbench 11 set on the frame 1. A tapping assembly 12 is set above the workbench 11, and a three-jaw chuck 13 is set on the workbench 11. The three-jaw chuck 13 is set below the tapping assembly 12. The above structure is a common existing structure, so it will not be described in detail in this embodiment.

[0023] Considering the need for rapid unloading, the three-jaw chuck 13 needs to be an automatic structure. Therefore, in this embodiment, the three-jaw chuck 13 is an automatic three-jaw chuck. The three-jaw chuck 13 can be a pneumatic three-jaw chuck or a hydraulic three-jaw chuck. In this embodiment, considering that a large amount of air source is used and the response speed of the pneumatic three-jaw chuck is faster than that of the hydraulic three-jaw chuck, a pneumatic three-jaw chuck is selected in this embodiment.

[0024] Meanwhile, in this embodiment, the feeding method has been changed to a bottom feeding method. For this purpose, a material discharge hole (not shown in the figure) is provided on the worktable 11. The material discharge hole is coaxially arranged with the three-jaw chuck 13. The size of the material discharge hole is sufficient to allow the steel bar sleeve to be tapped to pass through easily.

[0025] In this way, the processed rebar sleeve can automatically fall off after the three-jaw chuck finishes production. Since the tapping of the rebar sleeve is an internal thread process, the waste generated from tapping will also fall from the material discharge hole. Therefore, in order to separate the rebar sleeve and the waste, in this embodiment, a guide plate 14 is set on the frame 1. The guide plate 14 is set below the material discharge hole. The guide plate 14 can be flipped on the frame 1. The guide plate 14 can be flipped 90 degrees, that is, it can be kept horizontal or vertical. There are many ways to control the flipping of the guide plate 14. Of course, a flipping cylinder or an external rotor motor can be used to achieve the 90-degree flipping of the guide plate 14.

[0026] Thus, after tapping is completed, the guide plate 14 changes from a vertical to a horizontal position, preventing tapping debris from falling. The three-jaw chuck 13 is then released, allowing the rebar sleeve to fall onto the guide plate 14. The guide plate 14 is slightly inclined, causing the rebar sleeve to roll downwards on it. Simultaneously, a climbing conveyor belt 5 is installed on one side of the frame 1, allowing the rebar sleeve to be conveyed via the guide plate 14 to the climbing conveyor belt 5. The rebar sleeve is then transported via the climbing conveyor belt 5 to the collection basket for the next heat treatment process.

[0027] To collect waste chips, a waste chip collection trough 4 is provided below the guide plate 14. An auger conveying mechanism 41 is provided inside the waste chip collection trough 4. In this embodiment, the auger in the auger conveying mechanism 41 is a shaftless auger. The waste chip collection trough 4 is inclinedly provided below the guide plate 14. A chip discharge hole 42 is provided at the top of the waste chip collection trough 4. The chip discharge hole 42 is located on the side of the frame away from the climbing conveyor belt 5. In this way, one side of the frame 1 collects the processed steel bar sleeves, and the other side collects waste chips.

[0028] To achieve automatic loading and unloading of rebar sleeves, an automatic loading mechanism 2 and an automatic feeding mechanism 3 are also provided on the frame 1. The automatic loading mechanism 2 includes a loading trough 21 inclined on the workbench 11 and a baffle 22 at the bottom of the loading trough 21. The loading trough 21 includes a horizontal part 211 on the workbench 11 and an inclined part 212 at one end of the horizontal part 211. The horizontal part 211 is unobstructed on both sides, while the inclined part 212 is inclined upward from the horizontal part 211. The cross-section of the inclined part 212 is U-shaped. The baffle 22 is located at the end of the horizontal part 211 away from the inclined part 212. The main purpose of the baffle is to prevent the rebar sleeves to be tapped from falling off the loading trough 21, ensuring that only one rebar sleeve is placed on the horizontal part 211.

[0029] To complete the loading, a push cylinder 23 is provided on one side of the horizontal part 211, and a receiving bucket 24 is provided on the worktable 11. The receiving bucket 24 is located on the side of the horizontal part 211 away from the push cylinder 23, and the height of the receiving bucket 24 is lower than the height of the horizontal part 211. In this way, under the push of the push cylinder 23, the rebar sleeve to be tapped will move diagonally downward after it is detached from the support of the horizontal part 211, and thus fall into the receiving bucket 24.

[0030] Meanwhile, the receiving bucket 24 is set through the workbench 11 and is located in front of the three-jaw chuck 13. The axis of the receiving bucket 24 and the axis of the three-jaw chuck 13 are on the same horizontal line. The automatic feeding mechanism 3 includes a receiving column 31 for extending into the receiving bucket 24, a lifting cylinder 32 for controlling the lifting of the receiving column 31, and a fixed seat 33 for placing the lifting cylinder 32. At the same time, a pushing cylinder 34 is also set on the frame 1. The power end of the pushing cylinder 34 is connected to the fixed seat 33. The pushing cylinder 34 realizes the reciprocating movement of the fixed seat 33 between the material leakage hole and the receiving bucket 24.

[0031] In this way, the rebar sleeve to be tapped, which falls into the receiving bucket 24, moves vertically downward under the guidance of the receiving bucket 24 and falls onto the receiving column 31. At this time, the lifting cylinder 32 resets, causing the rebar sleeve to fall out of the receiving bucket 24. Simultaneously, the pushing cylinder 34 is activated, pushing the rebar sleeve to be tapped below the material leakage hole. The lifting cylinder 32 is activated, leaving the rebar sleeve to be tapped at the three-jaw chuck 13. The three-jaw chuck 13 is activated, completing the clamping of the rebar sleeve to be tapped. After tapping is completed, the three-jaw chuck 13 is activated, causing the tapped rebar sleeve to fall off automatically. The previous actions can be repeated.

[0032] To limit the movement of the receiving post 31 relative to the sleeve of the rebar to be tapped, the receiving post 31 is an air-expanding shaft. Alternatively, a connecting seat 35 can be provided at the bottom of the receiving post 31, ensuring that the width of the connecting seat 35 is greater than the diameter of the sleeve of the rebar to be tapped. In this embodiment, a combination of both methods is used to limit the movement of the sleeve of the rebar to be tapped.

[0033] To ensure the rebar sleeve to be tapped remains vertical within the receiving container 24, in this embodiment, the inner diameter of the receiving container 24 includes a reduced-diameter portion 241 and a uniform-diameter portion 242 located below the reduced-diameter portion 241. The diameter of the reduced-diameter portion 241 gradually decreases from top to bottom until it matches the diameter of the uniform-diameter portion 242. Since the inner diameter of the uniform-diameter portion 242 remains consistent, the reduced-diameter portion ensures that the rebar sleeve remains vertically downwards as it enters the receiving container 24 at an angle.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automatic tapping machine for rebar sleeves that facilitates the collection of rebar sleeves and tapping waste, comprising a frame and a worktable mounted on the frame, wherein a tapping assembly is mounted above the worktable, a three-jaw chuck is mounted on the worktable, and the three-jaw chuck is positioned below the tapping assembly, characterized in that, The three-jaw chuck is an automatic three-jaw chuck. A material leakage hole is provided on the worktable, and the material leakage hole is coaxially arranged with the three-jaw chuck. A guide plate is provided on the frame, and the guide plate is located below the material leakage hole. The guide plate can be flipped on the frame. A waste chip collection trough is provided below the guide plate. An auger conveyor mechanism is provided in the waste chip collection trough. The waste chip collection trough is inclined and located below the guide plate. A chip discharge hole is provided at the top of the waste chip collection trough. A climbing conveyor belt is provided on the frame away from the chip discharge hole. The steel bar sleeve can be conveyed to the climbing conveyor belt via the guide plate.

2. The automatic rebar sleeve tapping machine according to claim 1, which facilitates the collection of rebar sleeves and tapping waste, is characterized in that, The machine frame is also equipped with an automatic loading mechanism and an automatic feeding mechanism. The automatic loading mechanism includes a loading trough inclinedly mounted on the worktable and a baffle at the bottom of the loading trough. The loading trough includes a horizontal part mounted on the worktable and an inclined part at one end of the horizontal part. The horizontal part is unobstructed on both sides. The baffle is located at the end of the horizontal part away from the inclined part. A push cylinder is located on one side of the horizontal part. A receiving bucket is mounted on the worktable and located on the side of the horizontal part away from the push cylinder. The receiving bucket passes through the worktable and is located in front of a three-jaw chuck. The axis of the receiving bucket and the axis of the three-jaw chuck are on the same horizontal line. The automatic feeding mechanism includes a receiving column for extending into the receiving bucket, a lifting cylinder for controlling the lifting of the receiving column, and a fixed seat for placing the lifting cylinder. The machine frame is also equipped with a pushing cylinder. The power end of the pushing cylinder is connected to the fixed seat, and the pushing cylinder enables the fixed seat to reciprocate between the material leakage hole and the receiving bucket.

3. The automatic tapping machine for rebar sleeves, which facilitates the collection of rebar sleeves and tapping waste as described in claim 2, is characterized in that, The receiving column is an air-expanding shaft.

4. The automatic tapping machine for rebar sleeves, which facilitates the collection of rebar sleeves and tapping waste as described in claim 2, is characterized in that, The bottom of the receiving column is provided with a connecting seat, the width of which is greater than the diameter of the sleeve of the rebar to be tapped.

5. The automatic rebar sleeve tapping machine according to claim 2, which facilitates the collection of rebar sleeves and tapping waste, is characterized in that, The inner diameter of the receiving hopper includes a reduced diameter section and a uniform diameter section located below the reduced diameter section, wherein the diameter of the reduced diameter section gradually decreases from top to bottom until it matches the diameter of the uniform diameter section.

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