Screw sintering device

Abstract

The utility model relates to a screw sintering device which comprises a sintering furnace and a conveying rack, the conveying rack is arranged at a gate of the sintering furnace, the conveying rack is provided with a conveying track, the conveying track extends into the sintering furnace, the conveying track is provided with a carrying trolley, the carrying trolley is provided with a lower frame and an upper frame, and the lower frame is provided with two mounting frames arranged in parallel. Correspondingly, the upper frame is provided with two placing frames arranged in parallel, the placing frames are used for placing screw jigs, a plurality of driving wheels are arranged on the outer wall of a frame strip, close to the outer side, of the mounting frame, the driving wheels are matched with the conveying track, and a driving motor is arranged at the position, corresponding to the driving wheels, of the inner wall of the frame strip. A plurality of connecting plates are fixedly connected to the inner side of the mounting frame, inclined blocks are fixedly connected to the top walls of the connecting plates, and a plurality of climbing wheels are arranged on the inner side of the placing frame. According to the utility model, the detection efficiency of sintered screws can be improved, and the rate of defective products is reduced.

Description

A screw sintering device Technical Field

[0001] This utility model relates to the field of coating sintering technology, specifically to a screw sintering device. Background Technology

[0002] Some special-purpose screws require a special coating sintered onto the top wall of their heads to improve their hardness and wear resistance. The manufacturing process involves placing each screw to be sintered in a screw jig with its head positioned on the jig's top wall. A special coating material is then applied to the top wall of each screw's head. Next, the screw jigs are placed in a sintering furnace for sintering. After sintering, workers inspect the screws for quality; any screws with cracks, pits, or bumps in the sintered layer on the top wall of the head must be discarded.

[0003] Because the top wall of the screw head is small, the inspection process is quite demanding on the worker's eyesight, resulting in low inspection efficiency. Furthermore, because the screws are arranged closely together, they are easy to miss, leading to a high defect rate. Summary of the Invention

[0004] The purpose of this invention is to provide a screw sintering device that can improve the detection efficiency of sintered screws and reduce the defect rate.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A screw sintering apparatus includes a sintering furnace and a conveyor frame. The conveyor frame is located at the entrance of the sintering furnace and has a conveying track extending into the sintering furnace. The conveying track has a transport trolley, which has a lower frame and an upper frame. The lower frame has two parallel mounting frames, forming a U-shape. Correspondingly, the upper frame has two parallel placement frames, forming a U-shape. The placement frames are used to place screw fixtures. Multiple drive wheels are located on the outer wall of the mounting frame near the outer side, and these drive wheels cooperate with the conveyor track. A drive motor is located on the inner wall of the frame at a corresponding position on the drive wheel. Multiple connecting plates are fixed to the inner side of the mounting frame, and inclined blocks are fixed to the top wall of each connecting plate. The placement frames have... Multiple climbing wheels are provided, with limiting edges at both ends. The climbing wheels contact the inclined surface of the inclined block, and the two limiting edges of the climbing wheels abut against the two transverse edges of the inclined surface. A rear frame is provided on the rear side of the lower frame, and a climbing cylinder is provided on the rear frame. The rear end of the piston cylinder of the climbing cylinder is hinged to the rear frame, and the piston rod of the climbing cylinder is hinged to the rear side of the upper frame. An installation plate is fixed to the upper part of the inlet of the sintering furnace. A transverse linear mechanism is provided on the bottom wall of the installation plate. The transverse linear mechanism has a transverse slide, and a longitudinal linear mechanism is fixed to the transverse slide. The longitudinal linear mechanism has a longitudinal slide, and a vertical linear mechanism is fixed to the longitudinal slide. The vertical linear mechanism has a vertical slide table, and the vertical slide table has an identification camera and several screw adsorption mechanisms.

[0007] Specifically, the vertical slide table is slidably provided with several lifting and fine-tuning seats, and several lifting and fine-tuning motors are fixedly connected to the vertical slide table. Each lifting and fine-tuning motor is provided with a lifting and fine-tuning screw, which is connected to the lifting and fine-tuning seat.

[0008] Specifically, the screw adsorption mechanism is fixed to the lifting and fine-tuning seat. The lower end of the screw adsorption mechanism is rotatably provided with an adsorption head. The bottom end of the adsorption head is provided with an air suction hole. The bottom of the air suction hole is provided with four air suction holes. The top end of the screw adsorption mechanism is connected to an air extraction pipe.

[0009] Specifically, a ring-shaped light is fixed to the vertical slide, and the ring-shaped light is coaxially positioned below the recognition camera.

[0010] Specifically, the screw fixture is provided with several screw placement holes for inserting the shank of the screw to be sintered.

[0011] Specifically, the bottom wall of the sintering furnace cavity is provided with three longitudinally arranged support platforms, thereby forming two receiving slots, which are used to accommodate the mounting frame and placement frame on the corresponding side.

[0012] Specifically, the four suction holes on the adsorption head are evenly distributed circumferentially, and the four suction holes are offset from the cross grooves on the head of the screw to be sintered.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] As shown in Figures 6 to 8, in order to detect the sintering quality, an installation plate 11 is fixedly connected to the upper part of the inlet of the sintering furnace 1. The bottom wall of the installation plate 11 is provided with a transverse linear mechanism 12. The transverse linear mechanism 12 is provided with a transverse slide. The transverse slide is fixedly connected to a longitudinal linear mechanism 13. The longitudinal linear mechanism 13 is provided with a longitudinal slide. The longitudinal slide is fixedly connected to a vertical linear mechanism 14. The vertical linear mechanism 14 is provided with a vertical slide 141. The vertical slide 141 is provided with an identification camera 15 and several screw adsorption mechanisms 16.

[0015] During discharge, the transport trolley enters the sintering furnace 1, raising the upper frame 4 to remount the screw fixtures 5. Then, the transport trolley slowly exits the sintering furnace 1. As it exits, the identification camera 15 traverses laterally across the top wall of each sintered screw to assess its sintering quality. When defects such as cracks, pits, or bulges are detected on the top wall, the identification camera 15 records the position of the defective screw and the angle of the cross groove on its top wall. This controls the corresponding screw adsorption mechanism 16 to rotate its adsorption head 161, causing its four suction holes 1611 to misalign with the cross groove. Then, the drive mechanisms work together to move the adsorption head 161 to the defective screw, where the four suction holes 1611 contact the top wall of the defective screw, adsorbing it and transferring it to the waste collection area for discharge. The four suction holes 1611 are offset from the cross groove on the top wall of the defective screw head, which can prevent the cross groove from replenishing air at the suction holes 1611, thereby ensuring that the suction holes 1611 generate sufficient suction to adsorb the defective screw.

[0016] The identification camera 15 and screw adsorption mechanism 16 installed at the entrance of the sintering furnace 1 accurately detect each sintered screw during the process of the transport trolley removing the screw fixture 5, eliminating the need for subsequent manual quality inspection of each sintered screw, thereby improving quality inspection efficiency, increasing automation, and reducing the defect rate. Attached Figure Description

[0017] 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.

[0018] Figure 1 is a view of the screw sintering apparatus;

[0019] Figure 2 is a partial view of Figure 1;

[0020] Figure 3 is a view of the sintering furnace inlet;

[0021] Figure 4 is a top view of the transport trolley;

[0022] Figure 5 is a bottom view of the transport trolley;

[0023] Figure 6 shows the screw adsorption mechanism and related structural views;

[0024] Figure 7 is a partial enlarged view of Figure 6;

[0025] Figure 8 is a bottom view of the screw adsorption mechanism.

[0026] In the picture:

[0027] 1. Sintering furnace; 11. Mounting plate; 12. Horizontal linear mechanism; 13. Longitudinal linear mechanism; 14. Vertical linear mechanism; 141. Vertical slide table; 142. Lifting and fine-tuning seat; 143. Lifting and fine-tuning motor; 1431. Lifting and fine-tuning screw; 15. Recognition camera; 151. Ring lamp; 16. Screw adsorption mechanism; 161. Adsorption head; 1611. Suction hole; 162. Extraction pipe; 17. Support platform;

[0028] 2. Conveyor frame; 21. Conveyor track;

[0029] 3. Lower frame; 31. Mounting frame; 311. Drive wheel; 312. Drive motor; 313. Inclined block; 32. Climbing cylinder;

[0030] 4. Upper frame; 41. Placement frame; 411. Climbing wheel; 412. Limiting edge;

[0031] 5. Screw fixture. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] As shown in Figures 1 to 8, a screw sintering device includes a sintering furnace 1 and a conveyor frame 2, which is located at the entrance of the sintering furnace 1. The conveyor frame 2 is provided with a conveying track 21 that extends into the sintering furnace 1, and a transport trolley is provided on the conveying track 21.

[0034] The transport trolley has a lower frame 3 and an upper frame 4. The lower frame 3 has two parallel mounting frames 31, making the lower frame 3 U-shaped. Correspondingly, the upper frame 4 has two parallel placement frames 41, making the upper frame 4 U-shaped. The placement frames 41 are used to place screw fixtures 5.

[0035] The outer wall of the mounting frame 31 near the outer side is provided with multiple drive wheels 311, which cooperate with the conveying track 21. The inner wall of the frame is provided with a drive motor 312 at the corresponding position of the drive wheel 311. Multiple connecting plates are fixedly connected to the inner side of the mounting frame 31, and inclined blocks 313 are fixedly connected to the top wall of the connecting plates.

[0036] Multiple lifting wheels 411 are provided inside the placement frame 41. Each lifting wheel 411 has a limiting edge 412 at both ends. The lifting wheel 411 contacts the inclined surface of the inclined block 313, and the two limiting edges 412 of the lifting wheel 411 abut against the two horizontal edges of the inclined surface. A rear frame is provided on the rear side of the lower frame 3. The rear frame is equipped with a lifting cylinder 32. The rear end of the piston cylinder of the lifting cylinder 32 is hinged to the rear frame, and the piston rod of the lifting cylinder 32 is hinged to the rear side of the upper frame 4.

[0037] A mounting plate 11 is fixedly connected to the upper part of the inlet of the sintering furnace 1. A transverse linear mechanism 12 is provided on the bottom wall of the mounting plate 11. The transverse linear mechanism 12 is provided with a transverse slide. A longitudinal linear mechanism 13 is fixedly connected to the transverse slide. A longitudinal linear mechanism 13 is provided with a longitudinal slide. A vertical linear mechanism 14 is fixedly connected to the longitudinal slide. A vertical linear mechanism 14 is provided with a vertical slide table 141. A recognition camera 15 and several screw adsorption mechanisms 16 are provided on the vertical slide table 141.

[0038] Specifically, the vertical slide table 141 is slidably provided with a plurality of lifting and fine-tuning seats 142, and the vertical slide table 141 is fixedly connected with a plurality of lifting and fine-tuning motors 143. The lifting and fine-tuning motors 143 are provided with lifting and fine-tuning screws 1431, and the lifting and fine-tuning screws 1431 are connected to the lifting and fine-tuning seats 142.

[0039] Specifically, the screw adsorption mechanism 16 is fixed to the lifting fine adjustment seat 142. The lower end of the screw adsorption mechanism 16 is rotatably provided with an adsorption head 161. The bottom end of the adsorption head 161 is provided with an air suction hole. The bottom of the air suction hole is provided with four air suction holes 1611. The top end of the screw adsorption mechanism 16 is connected to an air extraction pipe 162, which communicates with the four air suction holes 1611.

[0040] Specifically, a ring-shaped light 151 is fixedly connected to the vertical slide 141, and the ring-shaped light 151 is coaxially arranged below the recognition camera 15.

[0041] Specifically, the screw fixture 5 is provided with a number of screw placement holes for inserting the shank of the screw to be sintered.

[0042] Specifically, the bottom wall of the inner cavity of the sintering furnace 1 is provided with three longitudinally arranged support platforms 17, thereby forming two receiving slots, which are used to accommodate the mounting frame 31 and the placement frame 41 on the corresponding side.

[0043] Specifically, the four suction holes 1611 of the adsorption head 161 are evenly distributed circumferentially, and the four suction holes 1611 are offset from the cross groove of the head of the screw to be sintered.

[0044] The working principle of this utility model is as follows:

[0045] The upper frame 4 of the transport trolley has two placement frames 41 on which multiple screw fixtures 5 are placed. Each screw fixture 5 has several screw placement holes for the shank of the screw to be sintered (not shown in the figure) to be inserted. The top wall of the head of the screw to be sintered has been coated with paint.

[0046] The transport trolley moves into the sintering furnace 1 along the conveyor track 21, positioning the lateral edge of the screw fixture 5 above the edge of the corresponding support platform 17 (as shown in Figures 1 and 2). Subsequently, the piston rod of the climbing cylinder 32 retracts, pulling the upper frame 4 backward relative to the lower frame 3, causing each climbing wheel 411 to slide down the inclined surface of the inclined block 313 (refer to Figure 4), thereby lowering the upper frame 4 below the support platform 17, leaving the screw fixture 5 at the edge of the two support platforms 17 on the corresponding side, thus achieving batch placement of the screw fixture 5.

[0047] Then, the transport trolley is removed from the sintering furnace 1 and returned to the conveyor frame 2. Subsequently, the door of the sintering furnace 1 (not shown in the figure) is closed, the sintering furnace 1 starts working, and the temperature inside the furnace rises, causing the coating to solidify on the top wall of the screw head, thereby increasing the hardness and wear resistance of the top wall of the screw head.

[0048] As shown in Figures 6 to 8, in order to detect the sintering quality, an installation plate 11 is fixedly connected to the upper part of the inlet of the sintering furnace 1. The bottom wall of the installation plate 11 is provided with a transverse linear mechanism 12. The transverse linear mechanism 12 is provided with a transverse slide. The transverse slide is fixedly connected to a longitudinal linear mechanism 13. The longitudinal linear mechanism 13 is provided with a longitudinal slide. The longitudinal slide is fixedly connected to a vertical linear mechanism 14. The vertical linear mechanism 14 is provided with a vertical slide 141. The vertical slide 141 is provided with an identification camera 15 and several screw adsorption mechanisms 16.

[0049] During discharge, the transport trolley enters the sintering furnace 1, raising the upper frame 4 to remount the screw fixtures 5. Then, the transport trolley slowly exits the sintering furnace 1. As it exits, the identification camera 15 traverses laterally across the top wall of each sintered screw to assess its sintering quality. When defects such as cracks, pits, or bulges are detected on the top wall, the identification camera 15 records the position of the defective screw and the angle of the cross groove on its top wall. This controls the corresponding screw adsorption mechanism 16 to rotate its adsorption head 161, causing its four suction holes 1611 to misalign with the cross groove. Then, the drive mechanisms work together to move the adsorption head 161 to the defective screw, where the four suction holes 1611 contact the top wall of the defective screw, adsorbing it and transferring it to the waste collection area for discharge. The four suction holes 1611 are offset from the cross groove on the top wall of the defective screw head, which can prevent the cross groove from replenishing air at the suction holes 1611, thereby ensuring that the suction holes 1611 generate sufficient suction to adsorb the defective screw.

[0050] The identification camera 15 and screw adsorption mechanism 16 installed at the entrance of the sintering furnace 1 accurately detect each sintered screw during the process of the transport trolley removing the screw fixture 5, eliminating the need for subsequent manual quality inspection of each sintered screw, thereby improving quality inspection efficiency, increasing automation, and reducing the defect rate.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A screw sintering device, characterized in that: The system includes a sintering furnace and a conveyor frame. The conveyor frame is located at the furnace entrance and has a conveyor track extending into the furnace. The conveyor track has a transport trolley, which has a lower frame and an upper frame. The lower frame has two parallel mounting frames, forming a U-shape. Correspondingly, the upper frame has two parallel placement frames, forming a U-shape. The placement frames are used to hold screw fixtures. Multiple drive wheels are located on the outer wall of the mounting frame near the outer edge, engaging with the conveyor track. Drive motors are located on the inner wall of the mounting frame at corresponding positions on the drive wheels. Multiple connecting plates are fixed to the inner side of the mounting frame, with inclined blocks fixed to the top wall of each connecting plate. Multiple climbing frames are located on the inner side of the placement frames. The climbing wheel has limiting edges at both ends. The climbing wheel contacts the inclined surface of the inclined block. The two limiting edges of the climbing wheel are abutted against the two horizontal edges of the inclined surface. The rear frame of the lower frame has a rear frame. The rear frame has a climbing cylinder. The rear end of the piston cylinder of the climbing cylinder is hinged to the rear frame. The piston rod of the climbing cylinder is hinged to the rear side of the upper frame. An installation plate is fixed to the upper part of the inlet of the sintering furnace. The bottom wall of the installation plate has a transverse linear mechanism. The transverse linear mechanism has a transverse slide. The transverse slide is fixed to a longitudinal linear mechanism. The longitudinal linear mechanism has a longitudinal slide. The longitudinal slide is fixed to a vertical linear mechanism. The vertical linear mechanism has a vertical slide table. The vertical slide table has an identification camera and several screw adsorption mechanisms.

2. The screw sintering apparatus according to claim 1, characterized in that: The vertical slide table is slidably provided with several lifting and fine-tuning seats, and several lifting and fine-tuning motors are fixedly connected to the vertical slide table. Each lifting and fine-tuning motor is provided with a lifting and fine-tuning screw, which is connected to the lifting and fine-tuning seat.

3. The screw sintering apparatus according to claim 2, characterized in that: The screw adsorption mechanism is fixed to the lifting and fine-tuning seat. The lower end of the screw adsorption mechanism is rotatably equipped with an adsorption head. The bottom end of the adsorption head is equipped with an air suction hole. The bottom of the air suction hole is equipped with four air suction holes. The top end of the screw adsorption mechanism is connected to an air extraction pipe.

4. The screw sintering apparatus according to claim 1, characterized in that: A ring-shaped light is fixed to the vertical slide, and the ring-shaped light is coaxially positioned below the recognition camera.

5. The screw sintering apparatus according to claim 1, characterized in that: The screw fixture has several screw placement holes for inserting the shank of the screw to be sintered.

6. The screw sintering apparatus according to claim 1, characterized in that: The bottom wall of the sintering furnace cavity is provided with three longitudinally arranged support platforms, which form two receiving slots. The receiving slots are used to accommodate the mounting frame and placement frame on the corresponding side.

7. The screw sintering apparatus according to claim 3, characterized in that: The four suction holes on the adsorption head are evenly distributed circumferentially, and the four suction holes are offset from the cross grooves on the head of the screw to be sintered.

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