Efficient and uniform heat treatment device for automobile fastener production and treatment method of efficient and uniform heat treatment device

Abstract

The invention relates to the technical field of automobile fastener production equipment, and particularly discloses an efficient and uniform heat treatment device for automobile fastener production and a treatment method thereof.The efficient and uniform heat treatment device comprises a mesh belt quenching furnace and a mounting frame, a discharging port is formed in the left end of the mesh belt quenching furnace, and a feeding port is formed in the right end of the mesh belt quenching furnace; a quenching pool is arranged at the left end of the mesh belt quenching furnace, a drying device is arranged at the right end of the mesh belt quenching furnace, and a mounting mechanism is arranged on the inner side of the mounting frame. Through rotation of a third rotating handle, the third rotating handle rotates to drive a second screw rod to rotate at a mounting groove, and meanwhile, an adjusting plate in threaded connection with the outer side of the second screw rod drives an adjusting block to slide on a mounting frame, so that limiting adjustment can be conveniently and adaptively performed according to the thickness specification of a nut fastener, and stacked nuts are prevented from passing through; and therefore, the nut fasteners in the mesh belt quenching furnace can be efficiently and uniformly heated when being spread into pieces, and meanwhile, the quality and the level of products are also ensured.

Description

Technical Field

[0001] The invention relates to the technical field of automobile fastener production equipment, in particular to a high-efficiency 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 parts. 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 treated with black oil and anti-rust oil.

[0003] After searching, a Chinese patent with announcement number CN208328068U discloses a mesh-belt quenching furnace, comprising 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 containing water is connected below 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 after the automobile nut fasteners in the prior art 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 producing automobile fasteners, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides an efficient and uniform heat treatment device for automobile fastener production, comprising a mesh belt quenching furnace and a mounting frame, wherein a discharge port is provided at the left end of the mesh belt quenching furnace, a feed port is provided at the right end of the mesh belt quenching furnace, a quenching pool is provided at the left end of the mesh belt quenching furnace, a drying device is provided 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, the mounting frame is movably mounted on the right end furnace frame of the mesh belt quenching furnace through 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; The mounting mechanism comprises a mounting cavity and a slide groove, the slide groove is symmetrically arranged at two ends of the mounting frame, the inner side of the slide groove is slidably connected with a matching block, the mounting cavity is arranged at the inner side of the mounting frame, the inner side of the mounting frame is rotatably connected with a first bidirectional screw, the end of the first bidirectional screw extends into the inner side of the slide groove and is threadedly connected with one end of the matching block, the outer side of the first bidirectional screw is fixedly installed with a first bevel gear, the inner side of the mounting frame is rotatably connected with a first rotating rod, one end of the first rotating rod is fixedly installed with a first rotating handle, and the end of the first rotating rod away from the first rotating handle is fixedly installed with a second bevel gear, the first bevel gear and the second bevel gear are meshingly connected, and the fixing mechanism is arranged at an end of the matching block away from the first bidirectional screw; The fixing mechanism comprises a concave block, the concave block is fixedly mounted on one end of the matching block away from the first bidirectional screw, the inner side of the concave block is rotatably connected with the first screw, one end of the first screw is fixedly mounted with the second handle, the end of the first screw away from the second handle is threadedly extended into the concave part of the concave block, the end of the first screw away from the second handle is rotatably connected with a clamping plate, one side of the clamping plate is slidably connected with the concave part of the concave block; The adjustment mechanism comprises a mounting groove, the mounting groove is arranged on the right side of the mounting frame, a second screw is rotatably connected to the inner side of the mounting groove, one end of the second screw passes through the inner top of the mounting groove and a third rotating handle is fixedly installed, 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 groove, an adjustment block is slidably connected to the right side of the mounting frame, one side of the adjustment plate is fixedly installed to the adjustment block, and the angle adjustment mechanism is arranged on the inner side of the adjustment block; The angle adjustment mechanism includes a groove, which is opened on the right side of the adjusting block, and a moving block is slidably connected to the inner side of the groove, and a second bidirectional screw is rotatably connected to the inner side of the groove, and the moving block is threadedly connected to the outer side of the thread of the second bidirectional screw. A baffle is symmetrically rotatably connected at the right corner of the adjusting block, and the same pull rod is rotatably connected between the baffle and the moving block. A fourth bevel gear is fixedly installed on the outer side of the second bidirectional screw, and a second rotating rod is rotatably connected to the inner side of the upper end of the adjusting block, and a fourth rotating handle is fixedly installed on the upper end of the second rotating rod, and the lower end of the second rotating rod extends into the inner side of the groove and is fixedly installed with a third bevel gear, and the fourth bevel gear and the third bevel gear are meshingly connected.

[0007] Furthermore, the shape of 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 rod, and one end of the matching block is slidably connected to the inner side of the sliding groove through the limiting groove.

[0008] Furthermore, a second displacement 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 displacement groove of the concave block.

[0009] Furthermore, a slide bar is symmetrically fixedly installed on the inner side of the installation 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 installation frame, and the dovetail grooves of the adjustment block and the installation frame are slidably connected.

[0010] 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 opened 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, and the plate seat is fixedly installed by screws and the insert block.

[0011] Furthermore, a first shifting groove is symmetrically opened on the inner side of the groove, the moving block and the first shifting 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.

[0012] An efficient and uniform heat treatment method for the production of automotive fasteners, comprising the following steps: S1. First, fix the mounting frame on the furnace frame at the feeding port 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 frame, and one end of the first rotating rod is meshed with the second bevel gear to transmit the second 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 makes the matching blocks threadedly connected at both ends slide away from or close to each other at the slide groove, so that one side of the lower end concave block can be pressed against the inner wall of the furnace frame, and then operate the second rotating handle to rotate, so that the first screw connected to the second rotating handle can be threaded and retracted 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 frame on the mesh belt quenching furnace from the outside of the furnace frame and with the concave block; 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 is meshed with the fourth bevel gear for transmission, and at the same time, the second bidirectional screw connected to the fourth bevel gear rotates at 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; S3. Then, the thickness of the automobile nut fastener is measured, and the third handle is operated to rotate, so that the rotation of the third handle drives the second screw to rotate at 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, and the nut thickness measurement value is used as an indicator for passing the furnace, 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; 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, and then they are transported and dried by the drying device. The dried nut fasteners fall into the feed inlet mesh belt of the mesh belt quenching furnace through the conveying port. When they pass under the baffle or the adjusting block, the unstacked nuts can pass smoothly and enter the furnace for processing, while the stacked nuts will be flattened and passed under the mesh belt conveyor. 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.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The first end of the first screw is connected to the second bevel gear and the second end of the first screw is connected to the first bevel gear, and the first two-way screw connected to the second bevel gear rotates in the installation cavity. The rotation of the first two-way screw makes the matching blocks connected by threads at both ends slide away from or close to each other at the slide groove. After adjustment, one side of the concave block at the lower end of the matching block can be pressed against the inner wall of the furnace frame. Then, the first screw connected to the second rotating handle can be threaded and retracted on the concave block, and the other end of the first screw is rotated to push the clamping plate to slide in the concave part of the concave block, so that the clamping block can fix the mounting frame on the mesh belt quenching furnace from the outside of the furnace frame and the matching concave block, so that the mounting frame can be quickly installed on the furnace frame at the feed inlet of the mesh belt quenching furnace for use. Secondly, in the present invention, the third handle is rotated to drive the second screw to rotate at 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 specification of the nut fastener to avoid the stacked nuts from passing through, thereby ensuring that the nut fasteners in the mesh belt quenching furnace can be efficiently and evenly heated when spread out in pieces, and at the same time, the quality and level of the product are guaranteed; Thirdly, 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 with the fourth bevel gear to transmit, 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 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, 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

[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the right side structure in the present invention; Figure 3 It is a schematic diagram of the structure of the regulating mechanism in the present invention; Figure 4 It is a schematic diagram of the structure of the adjustment block in the present invention; Figure 5 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle; Figure 7 It is a schematic diagram of the baffle structure in the present invention; Figure 8It is a schematic diagram of the installation mechanism structure in the present invention; Fig. 9 For the present invention Figure 8 Enlarged view of center C.

[0015] In the figure: 1, drying device; 2, mesh belt quenching furnace; 3, mounting frame; 4, quenching pool; 5, discharge port; 6, feed port; 7, mounting mechanism; 701, slide; 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, clamping plate; 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 rotating handle; 122, second rotating 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 shifting groove; 15, limit groove; 16, second shifting groove. DETAILED DESCRIPTION

[0016] Example See also Figure 1-Figure 9 In the embodiment of the present invention, an efficient and uniform heat treatment device for producing automobile 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 prior art, so the specific internal details are not described in detail here; 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 with a 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 with a first bidirectional screw rod 708. The end of the first bidirectional screw rod 708 extends into the inner side of the slide groove 701 and is threadedly connected with one end of the matching block 706. The outer side of the first bidirectional screw rod 708 is fixedly installed with a first bevel gear 705. The inner side of the mounting frame 3 is rotatably connected with a first rotating rod 703. One end of the first rotating rod 703 is fixedly installed with a first rotating handle 704, the end of the first rotating rod 703 away from the first rotating handle 704 is fixedly installed with the second bevel gear 707, the first bevel gear 705 and the second bevel gear 707 are meshingly connected, the fixing mechanism 8 is arranged at the 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 the 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 801 is inserted into the concave part of the concave block 804, and the end of the first screw rod 801 away from the second rotating handle 802 is rotatably connected with the clamping plate 803, and one side of the clamping plate 803 is slidably connected to the concave part of the concave block 804, and the first rotating rod 703 is driven to rotate on the mounting frame 3 through the first rotating handle 704, and one end of the first rotating rod 703 is meshed with the second bevel gear 707 through the first bevel gear 705. At the same time, the first bidirectional screw rod 708 connected to the second bevel gear 707 rotates in the mounting cavity 702, and the rotation of the first bidirectional screw rod 708 causes the matching blocks 706 threadedly connected at both ends to move away from or toward each other at the sliding groove 701. The two blocks 706 slide close to each other, and after adjustment, one side of the concave block 804 at the lower end of the matching block 706 can be pressed against the inner wall of the furnace frame, and 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 the matching 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; The adjusting mechanism 9 includes a mounting groove 903, which is provided on the right side of the mounting frame 3. A second screw rod 902 is rotatably connected to the inner side of the mounting groove 903. One end of the second screw rod 902 passes through the inner top of the mounting groove 903 and is fixedly installed with a third rotating handle 901. An adjusting plate 904 is slidably connected to the outer side of the second screw rod 902. The adjusting plate 904 is slidably connected to the inner side of the mounting groove 903. An adjusting block 905 is slidably connected to the right side of the mounting frame 3. 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. The third rotating handle 901 is rotated so that the third rotating handle 901 rotates to drive the second screw rod 902 to rotate at the mounting groove 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. The angle adjustment mechanism 12 includes a groove 129, which is opened on the right side of the adjustment block 905. A moving block 126 is slidably connected to the inner side of the groove 129. A second bidirectional screw 125 is rotatably connected to the inner side of the groove 129. The moving block 126 is threadedly connected to the outer side of the thread of the second bidirectional screw 125. A baffle 127 is symmetrically rotatably connected at the right corner of the adjustment block 905. The same pull rod 128 is rotatably connected between the baffle 127 and the moving block 126. 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 adjustment 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 a third bevel gear 123 is fixedly installed. 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, 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 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 frame 3 with the baffle 127 can be easily 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; 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 block 1273 is fixedly installed at one end of the plate body 1274. The insert block 1273 is plugged into the inner side of the slot 1272. The plate seat 1271 is fixedly installed by screws and the insert block 1273. After the insert block 1273 on the plate body 1274 and the slot 1272 on the plate seat 1271 are plugged, the engaging screws can conveniently fix the insert block 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 body 1274 is adjusted. Usually, automobile nut fasteners need to undergo two heat treatments, namely quenching and tempering. Then, the present structure can be adjusted and used to cope with various styles of tempering furnaces and the corresponding drying device 1 discharge port 5, thereby enhancing flexibility; the error between the lower end of the baffle 127 and the bottom of the adjustment block 905 does not exceed 3mm, and there is no problem at all in dealing with ordinary automobile nut fasteners. Of course, for the thin nuts of automobile nut fasteners, a full-inclusive type baffle 127 can be used, and the structural feature of the full-inclusive 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.

[0017] 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, so as to avoid excessive adjustment of the mating block 706 and causing it to fall out of the slide groove 701 as a whole.

[0018] See also Fig. 9 The concave part of the concave block 804 is symmetrically provided with a second shift groove 16 , one side of the clamping plate 803 is slidably connected to the second shift groove 16 of the concave block 804 , and the clamping plate 803 can slide on the concave block 804 through the second shift groove 16 on the concave block 804 .

[0019] See also Figure 3 and Figure 4 A slide bar 10 is symmetrically fixedly installed on the inner side of the mounting groove 903, and an 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. The adjustment block 905 and the dovetail groove 11 of the mounting frame 3 are slidably connected. The adjustment plate 904 can slide in the mounting groove 903 through the slide bar 10 on the inner side of the mounting groove 903, and the adjustment block 905 with the dovetail block can slide vertically up and down on the mounting frame 3 through the dovetail groove 11 on the mounting frame 3.

[0020] See also Figure 5 and Figure 6 A first shifting groove 14 is symmetrically provided on the inner side of the groove 129, the moving block 126 and the first shifting groove 14 are slidably connected, and an axle seat 13 is fixedly installed on the outer side 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. Through the first shifting groove 14 on the inner side of the groove 129, the moving block 126 can slide in a limited position at the groove 129 conveniently, 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.

[0021] An efficient and uniform heat treatment method for the production of automotive fasteners, comprising the following steps: 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 meshed 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 mating threaded connection at both ends of the screw 708 engage with the second bevel gear 707. The blocks 706 slide away from or towards each other at 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, and then the second handle 802 is operated to rotate, so that the first screw rod 801 connected to the second handle 802 can be threadedly extended and retracted on the concave block 804, and the other end of the first screw rod 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 in cooperation with the concave block 804; S2. During installation, according to the distance between the material outlet 5 of the drying device 1 and the inner wall of the furnace frame, 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 is meshed 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 close to or away from each other, and the same pull rod 128 is installed between the moving block 126 and the rotating baffle 127 on the adjusting block 905, so that the angle of the baffle 127 can be adjusted to a suitable position for use; S3. Then, the thickness of the automobile nut fastener is measured again, 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. According to the measured value of the nut thickness as an indicator of 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, and then they are transported and dried 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 unstacked nuts can pass smoothly and enter the furnace for processing, while the stacked nuts will be flattened and passed under the mesh belt conveyor. S5. After the unstacked nut fasteners are heat treated in the mesh belt quenching furnace 2, they are discharged from the discharge port 5 on the left side into the quenching pool 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 a discharge port (5) is provided at the left end of the mesh belt quenching furnace (2), a feed port (6) is provided at the right end of the mesh belt quenching furnace (2), a quenching pool (4) is provided at the left end of the mesh belt quenching furnace (2), a drying device (1) is provided at the right end of the mesh belt quenching furnace (2), a mounting mechanism (7) is provided on the inner side of the mounting frame (3), a fixing mechanism (8) is provided at the end of the mounting mechanism (7), 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), an adjusting mechanism (9) is provided on the right side of the mounting frame (3), and an angle adjustment mechanism (12) is provided on the outer side of the adjusting mechanism (9); The mounting mechanism (7) comprises 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 a matching block (706) is slidably connected to the inner side of the slide groove (701), and the mounting cavity (702) is arranged on the inner side of the mounting frame (3), and a first bidirectional screw rod (708) is rotatably connected to the inner side of the mounting frame (3), and an end of the first bidirectional screw rod (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 rod (708) is connected to the inner side of the slide groove (701). 08), a first bevel gear (705) is fixedly installed on the outer side of the mounting frame (3), a first rotating rod (703) is rotatably connected to the inner side of the mounting frame (3), a first rotating handle (704) is fixedly installed on one end of the first rotating rod (703), a second bevel gear (707) is fixedly installed on the end of the first rotating rod (703) away from the first rotating handle (704), the first bevel gear (705) and the second bevel gear (707) are meshingly connected, and the fixing mechanism (8) is arranged on the end of the matching block (706) away from the first bidirectional screw (708).

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 rod (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 efficient and uniform heat treatment device for automobile fastener production according to claim 1, characterized in that: The fixing mechanism (8) comprises a concave block (804), wherein 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 rotating handle (802), the end of the first screw (801) away from the second rotating handle (802) is threadedly extended into the inner concave portion of the concave block (804), the end of the first screw (801) away from the second rotating handle (802) is rotatably connected to a clamping plate (803), and one side of the clamping plate (803) is slidably connected to the inner concave portion of the concave block (804).

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

5. The efficient and uniform heat treatment device for automobile fastener production according to claim 1, characterized in that: 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 adjustment plate (904) being slidably connected to the outer side of the second screw rod (902), 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).

6. The high-efficiency and uniform heat treatment device for automobile fastener production according to claim 5, 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.

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

8. The high-efficiency and uniform heat treatment device for automobile fastener production according to claim 7, characterized in that: The baffle (127) comprises 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 mounted on one end of the plate body (1274); the insert block (1273) is inserted into the inner side of the slot (1272); and the plate seat (1271) is fixedly mounted by means of screws and the insert block (1273).

9. The high-efficiency and uniform heat treatment device for automobile fastener production according to claim 8, characterized in that: A first shifting groove (14) is symmetrically provided on the inner side of the groove (129); the moving block (126) and the first shifting 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).

10. An efficient and uniform heat treatment method for automobile fastener production, using an efficient and uniform heat treatment device for automobile fastener production according to any one of claims 1 to 9, 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 meshed 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), and the rotation of the first bidirectional screw (708) causes the threaded connection at both ends to rotate. The engaging blocks (706) slide away from or towards each other at 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, and then the second rotating handle (802) is operated to rotate, so that the first screw rod (801) connected to the second rotating handle (802) can be threadedly extended and retracted on the concave block (804), and the other end of the first screw rod (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 cooperation with the concave block (804); S2. During installation, according to the distance between the material outlet (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) is meshed 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 rotating baffle (127) 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), 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 index based on the measured value of the nut thickness as an index for passing through the furnace; S4. After the adjustment is completed, the 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 transported and dried by the drying device (1). After the nut fasteners are dried, they 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 that are not stacked 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. 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.

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