An efficient and uniform heat treatment device and treatment method for automobile fastener production

Abstract

The present invention relates to the technical field of automobile fastener production equipment, and specifically discloses an efficient and uniform heat treatment device for automobile fastener production and a treatment method thereof, comprising a mesh belt quenching furnace and a mounting frame, wherein the left end of the mesh belt quenching furnace is provided with a discharge port, the right end of the mesh belt quenching furnace is provided with a feed port, the left end of the mesh belt quenching furnace is provided with a quenching pool, the right end of the mesh belt quenching furnace is provided with a drying device, and the inner side of the mounting frame is provided with a mounting mechanism. By rotating the third turning handle, the third turning handle rotates to drive the second screw to rotate at the mounting groove, and at the same time, the adjustment plate threadedly connected to the outer side of the second screw drives the adjustment block to slide on the mounting frame, so that it is convenient to make adaptive limit adjustments according to the thickness specifications of the nut fasteners to avoid the passage of stacked nuts, thereby ensuring that the nut fasteners in the mesh belt quenching furnace can be efficiently and evenly heated when spread out in sheets, while also ensuring the quality and level of the product.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile fastener production equipment, in particular to a high-efficiency and uniform heat treatment device for automobile fastener production and a treatment method thereof. Background Art

[0002] Automobile nuts are important fasteners used in automobile manufacturing to ensure the stability and safety of the structure of automobile-related components. They are usually made of high-strength materials and can withstand harsh road conditions and environments. The heat treatment production process of nuts mainly includes cleaning before entering the furnace to remove surface oil stains to improve quenching quality. The cleaned nuts are then dried through the processing line and transported to the mesh belt quenching furnace for processing. The quenched nuts will then fall into the quenching pool for cooling, followed by cleaning, drying and tempering. Finally, the nut fasteners are passed through blackening oil and anti-rust oil.

[0003] After searching, the Chinese patent with announcement number CN208328068U discloses a mesh belt quenching furnace, including a machine body, a furnace body fixed on the machine body, a mesh belt connected to the machine body, two front rollers rotatably connected to one end of the machine body and horizontally distributed at different heights, and two rear rollers rotatably connected to the other end of the machine body and horizontally distributed at different heights, one of the front rollers is connected to a motor, a water tank filled with water is connected under the machine body, two guide rollers with axes perpendicular to the movement direction of the mesh belt are rotatably connected on the side wall of the water tank, a guide auxiliary roller with an axis perpendicular to the movement direction of the mesh belt is symmetrically rotatably connected on the side wall between the two guide rollers, the mesh belt is laid on the two guide rollers, and part of the mesh belt abuts against the bottom of the two guide auxiliary rollers.

[0004] Through the above-mentioned prior art, it can be understood that in the current prior art, after the automobile nut fasteners are pre-treated by cleaning and drying, the nuts will be conveyed to the mesh belt of the mesh belt quenching furnace. Due to the lack of a limiting structure, the tilted and stacked nuts are sent into the mesh belt furnace, which is prone to uneven heating, thereby reducing the production quality of the automobile nut fasteners. Summary of the Invention

[0005] The object of the present invention is to provide an efficient and uniform heat treatment device and a treatment method for the production of automotive fasteners, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides an efficient and uniform heat treatment device for producing automotive fasteners, comprising a mesh belt quenching furnace and a mounting frame, wherein the mesh belt quenching furnace is provided with a discharge port at the left end, a feed port at the right end, a quenching pool at the left end, and a drying device at the right end of the mesh belt quenching furnace. A mounting mechanism is provided on the inner side of the mounting frame, a fixing mechanism is provided at the end of the mounting mechanism, and the mounting frame is movably mounted on the right end furnace frame of the mesh belt quenching furnace via the fixing mechanism. An adjustment mechanism is provided on the right side of the mounting frame, and an angle adjustment mechanism is provided on the outer side of the adjustment mechanism.

[0007] The first and second bevel gears are connected with each other in a meshing manner, and the first gear is connected with the first gear through a hole in the front of the gear train and the second gear is connected with the first gear in a meshing manner.

[0008] The fixing mechanism includes a concave block, which is fixedly mounted on an end of the matching block away from the first bidirectional screw, the inner side of the concave block is rotatably connected to the first screw, one end of the first screw is fixedly mounted to the second rotating handle, the end of the first screw away from the second rotating handle is threadedly extended into the concave part of the concave block, the end of the first screw away from the second rotating handle is rotatably connected to a splint, and one side of the splint is slidably connected to the concave part of the concave block;

[0009] The adjustment mechanism includes a mounting slot, the mounting slot is opened on the right side of the mounting frame, a second screw is rotatably connected to the inner side of the mounting slot, one end of the second screw passes through the inner top of the mounting slot and is fixedly mounted with a third rotating handle, an adjustment plate is slidably connected to the outer side of the second screw, the adjustment plate is slidably connected to the inner side of the mounting slot, an adjustment block is slidably connected to the right side of the mounting frame, one side of the adjustment plate is fixedly mounted to the adjustment block, and the angle adjustment mechanism is arranged on the inner side of the adjustment block;

[0010] The cam is connected to the second end of the gear train of the second gear train, and the cam is connected to the gear train of the second gear train.

[0011] Furthermore, the matching block is L-shaped, and a limiting groove is symmetrically provided at one end of the matching block close to the first bidirectional screw, and one end of the matching block is slidably connected to the inner side of the sliding groove through the limiting groove.

[0012] Furthermore, a second shift groove is symmetrically provided at the inner concave portion of the concave block, and one side of the clamping plate is slidably connected to the second shift groove of the concave block.

[0013] Furthermore, a slide bar is symmetrically fixedly installed on the inner side of the mounting groove, the adjustment plate is slidably connected to the outer side of the slide bar, a dovetail groove is symmetrically opened on the right side of the mounting frame, and the dovetail grooves of the adjustment block and the mounting frame are slidably connected.

[0014] Furthermore, the baffle includes a plate seat and a plate body. The plate seat is rotatably connected to the corner on the right side of the adjustment block. A slot is provided on the outer side of the plate seat. An insert block is fixedly installed at one end of the plate body. The insert block is inserted into the inner side of the slot. The plate seat is fixedly installed by screws and the insert block.

[0015] Furthermore, a first shift groove is symmetrically opened on the inner side of the groove, the moving block and the first shift groove are slidably connected, the outer sides of the plate seat and the moving block are fixedly installed with an axle seat, one end of the pull rod is rotatably connected to the axle seat of the plate seat, and the other end of the pull rod is rotatably connected to the axle seat of the moving block.

[0016] An efficient and uniform heat treatment method for producing automotive fasteners, comprising the following steps:

[0017] S1. First, fix the mounting bracket on the furnace rack at the feed inlet of the mesh belt quenching furnace, and operate the first rotating handle to rotate so that the first rotating handle drives the first rotating rod to rotate on the mounting bracket, and one end of the first rotating rod is engaged with the second bevel gear through the first bevel gear, and at the same time, the first bidirectional screw connected to the second bevel gear rotates in the mounting cavity, and the rotation of the first bidirectional screw causes the matching blocks threadedly connected at both ends to slide away from or close to each other at the slide groove, so that one side of the lower end concave block can be abutted against the inner wall of the furnace rack, and then operate the second rotating handle to rotate so that the first screw connected to the second rotating handle can be threaded and extended on the concave block, and the other end of the first screw rotates to push the clamping plate to slide in the concave part of the concave block, so that the clamping block can fix the mounting bracket on the mesh belt quenching furnace from the outside of the furnace rack and cooperate with the concave block;

[0018] S2. During installation, according to the distance between the material outlet specification of the drying device and the inner wall of the furnace frame, the second rotating rod is rotated by using the fourth rotating handle, so that the third bevel gear connected to the second rotating rod engages with the fourth bevel gear to transmit the material. At the same time, the second bidirectional screw connected to the fourth bevel gear rotates in the groove of the adjusting block, and the moving blocks threadedly connected at both ends of the second bidirectional screw can slide closer to or away from each other, and the same pull rod is installed between the moving block and the rotating baffle on the adjusting block, so that the angle of the baffle can be adjusted to an appropriate position for use;

[0019] S3. Subsequently, the thickness of the automotive nut fastener is measured, and the third handle is rotated. This rotation of the third handle drives the second screw to rotate in the mounting groove. Simultaneously, an adjustment plate connected to the outer thread of the second screw drives the adjustment block to slide on the mounting bracket. The measured nut thickness is used as an indicator for furnace entry, and the distance between the lower end of the adjustment block and the mesh belt surface of the mesh belt quenching furnace is adjusted according to the indicator.

[0020] S4. After adjustment, heat treatment operation can be carried out. First, after the automobile nut fasteners are cleaned by the cleaning device, they are transported to the conveyor belt at the right end of the drying device. Then, they are dried while being transported by the drying device. The dried nut fasteners fall into the feed inlet mesh belt of the mesh belt quenching furnace through the conveyor port. When they pass under the baffle or the adjusting block, the nuts without stacking can pass smoothly and enter the furnace for processing, while the stacked nuts will be flattened and passed under the action of the mesh belt conveyor.

[0021] S5. After the unstacked nut fasteners are heat treated in the mesh belt quenching furnace, they are discharged from the left outlet into the quenching pool for cooling and hardening.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The cam is engaged with the first gear and the second gear is engaged with the first gear, and the cam is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear is engaged with the first gear and the second gear.

[0024] Secondly, in the present invention, the third rotating handle is rotated to drive the second screw to rotate in the installation groove, and at the same time, the adjustment plate connected to the outer thread of the second screw drives the adjustment block to slide on the installation frame, so that the limit adjustment can be adaptively made according to the thickness specifications of the nut fastener, avoiding the passage of stacked nuts, thereby ensuring that the nut fasteners spread out in a sheet in the mesh belt quenching furnace can be efficiently and evenly heated, while also ensuring the quality and level of the product;

[0025] Third, in the present invention, the second rotating rod is rotated by the fourth rotating handle, so that the third bevel gear connected to the second rotating rod engages and transmits the fourth bevel gear, and at the same time, the second bidirectional screw connected to the fourth bevel gear rotates in the groove of the adjusting block, and the movable blocks threadedly connected at both ends of the second bidirectional screw can slide closer to or away from each other, and the same pull rod is installed between the movable block and the rotating baffle on the adjusting block, so that the angle of the baffle can be adjusted to an appropriate position for use, so that the mounting frame with the baffle can be conveniently adjusted between the discharge port of the drying device and the furnace frame of the mesh belt quenching furnace, which is convenient for installation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a schematic diagram of the right side structure in the present invention;

[0028] Figure 3 Schematic diagram of the structure of the regulating mechanism in the present invention;

[0029] Figure 4 Schematic diagram of the structure of the adjustment block in the present invention;

[0030] Figure 5 For the present invention Figure 2 Enlarged view of point A in the middle;

[0031] Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle;

[0032] Figure 7 Schematic diagram of the baffle structure in the present invention;

[0033] Figure 8 Schematic diagram of the installation mechanism structure of the present invention;

[0034] Figure 9 For the present invention Figure 8 Enlarged view of point C in the middle.

[0035] In the figure: 1. Drying device; 2. Mesh belt quenching furnace; 3. Mounting frame; 4. Quenching tank; 5. Discharge port; 6. Feed port; 7. Mounting mechanism; 701. Chute; 702. Mounting cavity; 703. First rotating rod; 704. First rotating handle; 705. First bevel gear; 706. Matching block; 707. Second bevel gear; 708. First bidirectional screw; 8. Fixing mechanism; 801. First screw; 802. Second rotating handle; 803. Clamp; 804. Concave block; 9. Adjusting mechanism; 901. Third rotating handle; 902. Second screw ;903, mounting groove; 904, adjustment plate; 905, adjustment block; 10, sliding rod; 11, dovetail groove; 12, angle adjustment mechanism; 121, fourth turning handle; 122, second turning rod; 123, third bevel gear; 124, fourth bevel gear; 125, second bidirectional screw; 126, moving block; 127, baffle; 1271, plate seat; 1272, slot; 1273, insert block; 1274, plate body; 128, pull rod; 129, groove; 13, shaft seat; 14, first shift groove; 15, limit groove; 16, second shift groove. DETAILED DESCRIPTION

[0036] Example

[0037] See also Figures 1-9 In an embodiment of the present invention, an efficient and uniform heat treatment device for producing automotive fasteners includes a mesh belt quenching furnace 2 and a mounting frame 3. The left end of the mesh belt quenching furnace 2 is provided with a discharge port 5, the right end of the mesh belt quenching furnace 2 is provided with a feed port 6, the left end of the mesh belt quenching furnace 2 is provided with a quenching pool 4, the right end of the mesh belt quenching furnace 2 is provided with a drying device 1, the inner side of the mounting frame 3 is provided with a mounting mechanism 7, the end of the mounting mechanism 7 is provided with a fixing mechanism 8, the mounting frame 3 is movably mounted on the right end furnace frame of the mesh belt quenching furnace 2 through the fixing mechanism 8, the right side of the mounting frame 3 is provided with an adjustment mechanism 9, and the outer side of the adjustment mechanism 9 is provided with an angle adjustment mechanism 12; the mesh belt quenching furnace 2 is a relatively mature technical product in the existing technology, so the specific internal details are not described in detail here;

[0038] The mounting mechanism 7 includes a mounting cavity 702 and a slide groove 701. The slide groove 701 is symmetrically arranged at both ends of the mounting frame 3. The inner side of the slide groove 701 is slidably connected to the matching block 706. The mounting cavity 702 is arranged on the inner side of the mounting frame 3. The inner side of the mounting frame 3 is rotatably connected to the first bidirectional screw 708. The end of the first bidirectional screw 708 extends into the inner side of the slide groove 701 and is threadedly connected to one end of the matching block 706. The outer side of the first bidirectional screw 708 is fixedly installed with a first bevel gear 705. The inner side of the mounting frame 3 is rotatably connected to the first rotating rod 703. One end of the first rotating rod 703 is fixedly installed with a first rotating handle. 704, the first rotating rod 703 is fixedly installed with a second bevel gear 707 at one end away from the first rotating handle 704, the first bevel gear 705 and the second bevel gear 707 are meshed, the fixing mechanism 8 is provided at one end of the matching block 706 away from the first bidirectional screw 708, the fixing mechanism 8 includes a concave block 804, the concave block 804 is fixedly installed at one end of the matching block 706 away from the first bidirectional screw 708, the inner side of the concave block 804 is rotatably connected with the first screw 801, one end of the first screw 801 is fixedly installed with the second rotating handle 802, and the end of the first screw 801 away from the second rotating handle 802 is threadedly extended. The first screw rod 708 is connected to the mounting cavity 702 by the first two-way screw 708, and the rotation of the first two-way screw 708 causes the mating blocks 706 threaded at both ends to move away from or toward each other at the slot 701. The two screws 801 and 803 are connected to each other and slide close to each other. After adjustment, the concave block 804 at the lower end of the matching block 706 can be pressed against the inner wall of the furnace frame. Then, the first screw 801 connected to the second rotating handle 802 can be threaded and extended on the concave block 804, and the other end of the first screw 801 rotates to push the clamping plate 803 to slide in the concave part of the concave block 804, so that the clamping block can be fixed on the mesh belt quenching furnace 2 from the outside of the furnace frame and with the concave block 804, so that the mounting frame 3 can be quickly installed on the furnace frame at the feed port 6 of the mesh belt quenching furnace 2 for use; the thread structures at both ends of the first bidirectional screw 708 are opposite;

[0039] The adjusting mechanism 9 includes a mounting slot 903, which is provided on the right side of the mounting frame 3. The inner side of the mounting slot 903 is rotatably connected to the second screw rod 902, and one end of the second screw rod 902 passes through the inner top of the mounting slot 903 and is fixedly installed with a third rotating handle 901. The outer side of the second screw rod 902 is slidably connected to an adjusting plate 904, and the adjusting plate 904 is slidably connected to the inner side of the mounting slot 903. The right side of the mounting frame 3 is slidably connected to an adjusting block 905, and one side of the adjusting plate 904 and the adjusting block 905 are fixedly installed. The angle adjustment mechanism 12 is provided on the inner side of the adjusting block 905, and the third rotating handle 901 is rotated so that the third rotating handle 901 rotates and drives the second screw rod 902 to rotate at the mounting slot 903. At the same time, the adjusting plate 904 threadedly connected to the outer side of the second screw rod 902 drives the adjusting block 905 to slide on the mounting frame 3, so that adaptive adjustment can be conveniently performed according to the thickness specifications of the nut fastener;

[0040] The angle adjustment mechanism 12 includes a groove 129, which is opened on the right side of the adjustment block 905. The inner side of the groove 129 is slidably connected to the moving block 126, and the inner side of the groove 129 is rotatably connected to the second bidirectional screw 125. The moving block 126 is threadedly connected to the outer side of the thread of the second bidirectional screw 125. The right corner of the adjustment block 905 is symmetrically rotatably connected with a baffle 127, and the baffle 127 and the moving block 126 are rotatably connected with the same pull rod 128. The outer side of the second bidirectional screw 125 is fixedly installed with a fourth bevel gear 124, and the inner side of the upper end of the adjustment block 905 is rotatably connected to the second rotating rod 122. The upper end of the second rotating rod 122 is fixedly installed with a fourth rotating handle 121. The lower end of the second rotating rod 122 extends into the inner side of the groove 129 and is fixedly installed with a third bevel gear 123. The fourth bevel gear 124 and the third bevel gear The wheel 123 is meshedly connected, and the second rotating rod 122 is rotated by the fourth rotating handle 121, so that the third bevel gear 123 connected to the second rotating rod 122 meshes and transmits the fourth bevel gear 124. At the same time, the second bidirectional screw 125 connected to the fourth bevel gear 124 rotates at the groove 129 of the adjusting block 905, and the moving blocks 126 threadedly connected at both ends of the second bidirectional screw 125 can slide close to or away from each other, and the same pull rod 128 is installed between the moving block 126 and the baffle 127 rotating on the adjusting block 905, so that the angle of the baffle 127 can be adjusted to an appropriate position for use, so that the mounting bracket 3 with the baffle 127 can be adjusted between the discharge port 5 of the drying device 1 and the furnace frame of the mesh belt quenching furnace 2, which is convenient for installation and use; the thread structures at both ends of the second bidirectional screw 125 are opposite;

[0041] The baffle 127 includes a plate seat 1271 and a plate body 1274. The plate seat 1271 is rotatably connected to the corner on the right side of the adjustment block 905. A slot 1272 is provided on the outer side of the plate seat 1271. An insert 1273 is fixedly installed at one end of the plate body 1274. The insert 1273 is inserted into the inner side of the slot 1272. The plate seat 1271 is fixedly installed by screws and the insert 1273. After the insert 1273 on the plate body 1274 and the slot 1272 on the plate seat 1271 are inserted, the engaging screws can conveniently fix the insert 1273 on the plate body 1274 in the slot 1272 of the plate seat 1271. The baffle 127 is designed to be detachable, which can be conveniently adjusted according to different types of furnaces or drying devices 1 The discharge port 5 is replaced and the plate 1274 is adjusted. Usually, automobile nut fasteners need to undergo two heat treatments, namely quenching and tempering. Then, this structure can be adjusted and used to cope with various styles of tempering furnaces and corresponding drying devices 1. The discharge port 5 can be used, thereby enhancing flexibility; the error between the lower end of the baffle 127 and the bottom of the adjustment block 905 does not exceed 3 mm, which is completely no problem for dealing with ordinary automobile nut fasteners. Of course, for the thin nuts of automobile nut fasteners, a full-cover type baffle 127 can be used, and the structural feature of the full-cover type baffle 127 is that the upper and lower ends of the baffle 127 are at the same level as the adjustment block 905, so there is no such error.

[0042] See also Figure 8 The shape of the mating block 706 is L-shaped, and a limiting groove 15 is symmetrically provided at one end of the mating block 706 close to the first bidirectional screw 708. One end of the mating block 706 is slidably connected to the inner side of the slide groove 701 through the limiting groove 15. The limiting groove 15 on one side of the mating block 706 slides relative to the limiting block at the mouth of the slide groove 701, which can prevent the mating block 706 from being over-adjusted and falling out of the slide groove 701 as a whole.

[0043] See also Figure 9 A second shift groove 16 is symmetrically provided in the concave part of the concave block 804 , and one side of the splint 803 is slidably connected to the second shift groove 16 of the concave block 804 . Through the second shift groove 16 on the concave block 804 , the splint 803 can slide on the concave block 804 .

[0044] See also Figure 3 and Figure 4 The sliding rod 10 is symmetrically fixed on the inner side of the mounting groove 903, and the adjusting plate 904 is slidably connected to the outer side of the sliding rod 10. A dovetail groove 11 is symmetrically opened on the right side of the mounting frame 3. The adjusting block 905 and the dovetail groove 11 of the mounting frame 3 are slidably connected. The sliding rod 10 on the inner side of the mounting groove 903 can make the adjusting plate 904 slide in the mounting groove 903, and the dovetail groove 11 on the mounting frame 3 can make the adjusting block 905 with the dovetail block slide vertically up and down on the mounting frame 3.

[0045] See also Figure 5 and Figure 6 , a first shift groove 14 is symmetrically opened on the inner side of the groove 129, the moving block 126 and the first shift groove 14 are slidably connected, and the outer side of the plate seat 1271 and the moving block 126 are fixedly installed with an axle seat 13, one end of the pull rod 128 is rotatably connected to the axle seat 13 of the plate seat 1271, and the other end of the pull rod 128 is rotatably connected to the axle seat 13 of the moving block 126. Through the first shift groove 14 on the inner side of the groove 129, the moving block 126 can be conveniently limited to slide in the groove 129, and through the axle seat 13 between the plate seat 1271 and the moving block 126, the end of the pull rod 128 can rotate between the plate seat 1271 and the moving block 126.

[0046] An efficient and uniform heat treatment method for producing automotive fasteners, comprising the following steps:

[0047] S1. First, fix the mounting frame 3 on the furnace frame at the feed port 6 of the mesh belt quenching furnace 2. By operating the first rotating handle 704 to rotate, the first rotating handle 704 drives the first rotating rod 703 to rotate on the mounting frame 3. One end of the first rotating rod 703 is engaged with the second bevel gear 707 through the first bevel gear 705. At the same time, the first bidirectional screw 708 connected to the second bevel gear 707 rotates in the mounting cavity 702. The rotation of the first bidirectional screw 708 makes the threaded connection at both ends of the first rotating rod 703 engage with the second bevel gear 707. The blocks 706 slide away from or toward each other in the slide groove 701, so that one side of the lower end concave block 804 can be pressed against the inner wall of the furnace frame. Then, the second rotating handle 802 is operated to rotate, so that the first screw 801 connected to the second rotating handle 802 can be threaded and extended on the concave block 804, and the other end of the first screw 801 is rotated to push the clamping plate 803 to slide in the concave part of the concave block 804, so that the clamping block can cooperate with the concave block 804 from the outside of the furnace frame to fix the mounting frame 3 on the mesh belt quenching furnace 2;

[0048] S2. During installation, according to the distance between the specifications of the discharge port 5 of the drying device 1 and the inner wall of the grate, the second rotating rod 122 is rotated by using the fourth rotating handle 121, so that the third bevel gear 123 connected to the second rotating rod 122 engages with the fourth bevel gear 124 for transmission, and at the same time, the second bidirectional screw 125 connected to the fourth bevel gear 124 rotates at the groove 129 of the adjusting block 905, and the moving blocks 126 threadedly connected at both ends of the second bidirectional screw 125 can slide closer to or away from each other, and the same pull rod 128 is installed between the moving block 126 and the baffle 127 rotating on the adjusting block 905, so that the angle of the baffle 127 can be adjusted to an appropriate position for use;

[0049] S3. Subsequently, the thickness of the automotive nut fastener is measured, and the third rotating handle 901 is rotated. This rotation of the third rotating handle 901 drives the second screw 902 to rotate in the mounting groove 903. Simultaneously, the adjustment plate 904, which is threadedly connected to the outer side of the second screw 902, drives the adjustment block 905 to slide on the mounting bracket 3. The measured nut thickness is used as an indicator for furnace entry, and the distance between the lower end of the adjustment block 905 and the mesh belt surface of the mesh belt quenching furnace 2 is adjusted according to the indicator.

[0050] S4. After adjustment, heat treatment operation can be carried out. First, after the automobile nut fasteners are cleaned by the cleaning device, they are transported to the conveyor belt at the right end of the drying device 1. Then, they are dried while being transported by the drying device 1. The dried nut fasteners fall into the mesh belt of the feed port 6 of the mesh belt quenching furnace 2 through the conveying port. When they pass under the baffle 127 or the adjusting block 905, the nuts without stacking can pass smoothly and enter the furnace for processing, while the stacked nuts will be flattened and passed under the action of the mesh belt conveyor;

[0051] S5. After the unstacked nut fasteners have been heat treated in the mesh belt quenching furnace 2, they are discharged from the discharge port 5 on the left side into the quenching tank 4 for cooling and hardening.

Claims

1. An efficient and uniform heat treatment device for the production of automotive fasteners, characterized in that: The invention comprises a mesh belt quenching furnace (2) and a mounting frame (3), wherein the left end of the mesh belt quenching furnace (2) is provided with a discharge port (5), the right end of the mesh belt quenching furnace (2) is provided with a feed port (6), the left end of the mesh belt quenching furnace (2) is provided with a quenching pool (4), the right end of the mesh belt quenching furnace (2) is provided with a drying device (1), the inner side of the mounting frame (3) is provided with a mounting mechanism (7), the end of the mounting mechanism (7) is provided with a fixing mechanism (8), the mounting frame (3) is movably mounted on the right end furnace frame of the mesh belt quenching furnace (2) through the fixing mechanism (8), the right side of the mounting frame (3) is provided with an adjustment mechanism (9), and the outer side of the adjustment mechanism (9) is provided with an angle adjustment mechanism (12); The mounting mechanism (7) includes a mounting cavity (702) and a slide groove (701), wherein the slide groove (701) is symmetrically arranged at both ends of the mounting frame (3), and the inner side of the slide groove (701) is slidably connected to a matching block (706), and the mounting cavity (702) is arranged on the inner side of the mounting frame (3), and the inner side of the mounting frame (3) is rotatably connected to a first bidirectional screw (708), and the end of the first bidirectional screw (708) extends into the inner side of the slide groove (701) and is threadedly connected to one end of the matching block (706), and the first bidirectional screw (708) is screwed to the inner side of the slide groove (701). 08) is fixedly mounted on the outside of the first bevel gear (705), the inside of the mounting frame (3) is rotatably connected to the first rotating rod (703), one end of the first rotating rod (703) is fixedly mounted with a first rotating handle (704), the end of the first rotating rod (703) away from the first rotating handle (704) is fixedly mounted with a second bevel gear (707), the first bevel gear (705) and the second bevel gear (707) are meshingly connected, and the fixing mechanism (8) is provided at one end of the matching block (706) away from the first bidirectional screw (708); The fixing mechanism (8) includes a concave block (804), the concave block (804) is fixedly mounted on one end of the matching block (706) away from the first bidirectional screw (708), the inner side of the concave block (804) is rotatably connected to the first screw (801), one end of the first screw (801) is fixedly mounted to the second handle (802), the end of the first screw (801) away from the second handle (802) is threadedly extended into the concave portion of the concave block (804), the end of the first screw (801) away from the second handle (802) is rotatably connected to a splint (803), one side of the splint (803) is slidably connected to the concave portion of the concave block (804); The adjustment mechanism (9) comprises a mounting groove (903), the mounting groove (903) being provided on the right side of the mounting frame (3), a second screw rod (902) being rotatably connected to the inner side of the mounting groove (903), one end of the second screw rod (902) passing through the inner top of the mounting groove (903) and being fixedly mounted with a third rotating handle (901), an outer side of the second screw rod (902) being slidably connected to an adjustment plate (904), the adjustment plate (904) being slidably connected to the inner side of the mounting groove (903), an adjustment block (905) being slidably connected to the right side of the mounting frame (3), one side of the adjustment plate (904) and the adjustment block (905) being fixedly mounted, and the angle adjustment mechanism (12) being arranged on the inner side of the adjustment block (905).

2. The efficient and uniform heat treatment device for automobile fastener production according to claim 1, characterized in that: The matching block (706) is L-shaped, and a limiting groove (15) is symmetrically provided at one end of the matching block (706) close to the first bidirectional screw (708), and one end of the matching block (706) is slidably connected to the inner side of the sliding groove (701) through the limiting groove (15).

3. The high-efficiency and uniform heat treatment device for automobile fastener production according to claim 1, characterized in that: A second shifting groove (16) is symmetrically provided in the inner concave portion of the concave block (804), and one side of the clamping plate (803) is slidably connected to the second shifting groove (16) of the concave block (804).

4. The high-efficiency and uniform heat treatment device for automobile fastener production according to claim 1, characterized in that: A slide bar (10) is symmetrically fixedly mounted on the inner side of the mounting groove (903), the adjustment plate (904) is slidably connected to the outer side of the slide bar (10), a dovetail groove (11) is symmetrically opened on the right side of the mounting frame (3), and the adjustment block (905) and the dovetail groove (11) of the mounting frame (3) are slidably connected.

5. The high-efficiency and uniform heat treatment device for automobile fastener production according to claim 1, characterized in that: The angle adjustment mechanism (12) includes a groove (129), the groove (129) is opened on the right side of the adjustment block (905), the inner side of the groove (129) is slidably connected to the moving block (126), the inner side of the groove (129) is rotatably connected to the second bidirectional screw (125), the moving block (126) is threadedly connected to the outer side of the thread of the second bidirectional screw (125), and the right corner of the adjustment block (905) is symmetrically rotatably connected to a baffle (127), the baffle (127) and the moving block (126) are symmetrically rotatably connected. ) are rotatably connected with a same pull rod (128), a fourth bevel gear (124) is fixedly installed on the outer side of the second bidirectional screw (125), a second rotating rod (122) is rotatably connected to the inner side of the upper end of the adjusting block (905), a fourth rotating handle (121) is fixedly installed on the upper end of the second rotating rod (122), the lower end of the second rotating rod (122) extends into the inner side of the groove (129) and is fixedly installed with a third bevel gear (123), and the fourth bevel gear (124) and the third bevel gear (123) are meshingly connected.

6. The high-efficiency and uniform heat treatment device for automobile fastener production according to claim 5, characterized in that: The baffle (127) includes a plate seat (1271) and a plate body (1274). The plate seat (1271) is rotatably connected to the right corner of the adjustment block (905). A slot (1272) is provided on the outer side of the plate seat (1271). An insert block (1273) is fixedly installed on one end of the plate body (1274). The insert block (1273) is inserted into the inner side of the slot (1272). The plate seat (1271) is fixedly installed by screws and the insert block (1273).

7. The high-efficiency and uniform heat treatment device for producing automobile fasteners according to claim 6, characterized in that: A first shift groove (14) is symmetrically provided on the inner side of the groove (129); the moving block (126) and the first shift groove (14) are slidably connected; an axle seat (13) is fixedly installed on the outer sides of the plate seat (1271) and the moving block (126); one end of the pull rod (128) is rotatably connected to the axle seat (13) of the plate seat (1271); and the other end of the pull rod (128) is rotatably connected to the axle seat (13) of the moving block (126).

8. A method for high-efficiency and uniform heat treatment of automobile fasteners, using the high-efficiency and uniform heat treatment device for automobile fasteners according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: S1. First, the mounting frame (3) is fixed on the furnace frame at the feed port (6) of the mesh belt quenching furnace (2). The first rotating handle (704) is operated to rotate, so that the first rotating handle (704) drives the first rotating rod (703) to rotate on the mounting frame (3), and one end of the first rotating rod (703) is engaged with the second bevel gear (707) through the first bevel gear (705). At the same time, the first bidirectional screw (708) connected to the second bevel gear (707) rotates in the mounting cavity (702). The rotation of the first bidirectional screw (708) causes the threaded connection at both ends to rotate. The blocks (706) slide away from or toward each other at the chute (701), so that one side of the lower end concave block (804) can be pressed against the inner wall of the furnace frame, and then the second handle (802) is operated to rotate, so that the first screw (801) connected to the second handle (802) can be threaded and extended on the concave block (804), and the other end of the first screw (801) is rotated to push the clamping plate (803) to slide in the concave part of the concave block (804), so that the clamping block can be fixed on the mesh belt quenching furnace (2) from the outside of the furnace frame and in conjunction with the concave block (804); S2. During installation, according to the distance between the specifications of the discharge port (5) of the drying device (1) and the inner wall of the furnace frame, the second rotating rod (122) is rotated by using the fourth rotating handle (121), so that the third bevel gear (123) connected to the second rotating rod (122) engages with the fourth bevel gear (124), and at the same time, the second bidirectional screw (125) connected to the fourth bevel gear (124) rotates at the groove (129) of the adjustment block (905), and the moving blocks (126) threadedly connected at both ends of the second bidirectional screw (125) can slide closer to or away from each other, and the same pull rod (128) is installed between the moving block (126) and the baffle (127) rotating on the adjustment block (905), so that the angle of the baffle (127) can be adjusted to an appropriate position for use; S3. Subsequently, the thickness of the automobile nut fastener is measured, and the third rotating handle (901) is operated to rotate, so that the rotation of the third rotating handle (901) drives the second screw rod (902) to rotate at the installation groove (903), and at the same time, the adjustment plate (904) connected to the outer thread of the second screw rod (902) drives the adjustment block (905) to slide on the installation frame (3). Based on the measured value of the nut thickness as an indicator for passing the furnace, the distance between the lower end of the adjustment block (905) and the mesh belt surface of the mesh belt quenching furnace (2) is adjusted according to the indicator; S4. After adjustment, heat treatment operation can be carried out. First, after the automobile nut fasteners are cleaned by the cleaning device, they are transported to the conveyor belt at the right end of the drying device (1). Then, they are dried while being transported by the drying device (1). The dried nut fasteners fall into the mesh belt of the feed port (6) of the mesh belt quenching furnace (2) through the conveying port. When they pass under the baffle (127) or the adjusting block (905), the nuts without stacking can pass smoothly and enter the furnace for processing, while the stacked nuts will be pushed flat by the mesh belt conveyor. S5. After the unstacked nut fasteners are heat-treated in the mesh belt quenching furnace (2), they are discharged through the discharge port (5) on the left side into the quenching pool (4) for cooling and hardening.

Images