Annealing furnace for nonferrous metal processing

Abstract

The invention provides an annealing furnace for nonferrous metal processing, which relates to the field of annealing furnaces and comprises the following structures: an annealing furnace; a chain plate conveyor line, wherein a plurality of mounting frames are fixedly arranged on the outer sides of the chain plates of the chain plate conveyor line, and a locking rod is fixedly arranged on the outer sides of the mounting frames; a pallet, wherein a fixed clamping seat is fixedly arranged on the right rear end of the pallet, and a guide frame is fixedly arranged on the right front part of the pallet, and a movable clamping seat is arranged on the front end of the guide frame. By adding two chain plate conveyor lines, the locking rod, the fixed clamping seat and the movable clamping seat cooperate to complete the assembly process of the chain plate conveyor line and the pallet. Under the premise of minimizing the change to the internal structure of the original annealing furnace equipment and minimizing the transformation cost, the annealing furnace can simultaneously anneal four workpieces with different annealing times. The pallet structure design in the present application can meet the sand buried annealing process requirements of the workpiece, further improve the utilization rate of the annealing furnace, and solve the technical problem of low utilization rate of the annealing furnace.

Description

Technical Field

[0001] The invention mainly relates to the field of annealing furnaces, and in particular to an annealing furnace for nonferrous metal processing. Background Art

[0002] When non-ferrous metal workpieces are annealed in the annealing furnace, the workpieces need to be slowly heated and cooled to effectively control the crystallization rate and stress release of the workpieces. Due to the different sizes of the workpieces, the annealing time also varies. If multiple annealing furnaces are configured in the factory according to the different processed products, the equipment procurement and deployment costs will be relatively high.

[0003] When choosing from many types of annealing furnaces, consider using a tunnel annealing furnace for the annealing of workpieces. For workpieces of different specifications with the same annealing temperature requirements, the annealing time is different. The rollers inside the tunnel annealing furnace cannot process workpieces with different annealing times.

[0004] Therefore, during the customized purchase of an annealing furnace with a double roller conveyor line, it was found that it still could not meet the annealing operation needs of the existing product line. The inventor proposed an annealing furnace for non-ferrous metal processing, by adding conveying equipment and matching pallets in the furnace chamber space of the existing annealing furnace, as a new annealing conveyor line design for the annealing furnace. The configured pallets can also meet the subsequent sand burying and cooling treatment measures of the workpiece, thereby improving the utilization rate of the annealing furnace equipment. Summary of the invention

[0005] 1. Problems to be solved by the invention:

[0006] The present invention provides an annealing furnace for nonferrous metal processing, which is used to solve the technical problem of low utilization rate of the existing annealing furnace mentioned in the above background technology.

[0007] 2. Technical solution:

[0008] In order to achieve the above object, the technical solution provided by the present invention is: an annealing furnace for non-ferrous metal processing, comprising the following structure:

[0009] The annealing furnace has a support frame fixedly arranged at the bottom thereof, and roller conveyor lines are fixedly arranged at the middle of the support frame toward the left and right sides.

[0010] A chain conveyor line, wherein a plurality of mounting frames are fixedly arranged on the outer side of the chain plates of the chain conveyor line, and a locking rod is fixedly arranged on the outer side of the mounting frames.

[0011] A tray, wherein a fixed clamping seat is fixedly arranged at the right rear end of the tray, a guide frame is fixedly arranged at the right front part of the tray, and a movable clamping seat is arranged at the front end of the guide frame.

[0012] Furthermore, a top shell is fixedly arranged on the top of the support frame, and a conveying hole is penetrated through the front and rear sides of the bottom of the top shell, and the conveying hole penetrates the internal furnace cavity of the annealing furnace.

[0013] At least three first heat sources are provided in the middle of the support frame from front to back, the outer sides of multiple first heat sources are fixedly connected to the middle of the fixed frame, the outer side of the fixed frame is slidably connected to the middle of the support frame, the heat radiation area of ​​the first heat source covers the roller conveyor line and the chain conveyor line, and a linear module is fixedly provided on the left side of the support frame, and the moving ends of the linear module are respectively fixedly connected to the bottom of the fixed frame.

[0014] At least three second heat sources are fixedly arranged on the top of the inner wall of the top shell from front to back, and the heat radiation area of ​​the second heat source covers the roller conveyor line and the chain conveyor line.

[0015] Furthermore, the axial direction of the driving roller of the chain conveyor line is perpendicular to the axial direction of the roller bar of the roller conveyor line, and the front and rear ends of the chain conveyor line extend to the outside of the front end and the outside of the rear end of the annealing furnace respectively. The chain conveyor line is symmetrically arranged about the middle of the annealing furnace, and the outer frames of the two chain conveyor lines are fixedly connected to the left and right sides of the top of the support frame respectively. The outer sides of the two chain conveyor lines are divided into avoidance zones on the left and right sides of the inner wall of the top shell respectively, and the width of the avoidance zone is greater than the assembly structure width of the mounting frame and the locking rod.

[0016] The combination of chain conveyor line and pallet, in cooperation with the original roller conveyor line, can anneal up to four workpieces with different annealing times. For workpieces with the same annealing time, the workpieces with the same annealing time can be placed on the roller conveyor line or chain conveyor line to improve the utilization rate of the annealing furnace.

[0017] Furthermore, handles are welded to the front and rear sides of the tray, and the middle portion of the tray is divided into a supporting area, which can be filled with sand.

[0018] The tray design allows the workpiece to be placed directly on the support area or to be sand buried in the support area for annealing.

[0019] Furthermore, a first slot is fixedly provided on the front side of the fixed card seat, and the first slot is detachably connected to the outer side of the locking rod, and the top and bottom of the fixed card seat are respectively in contact with the top and bottom of the inner wall of the mounting frame.

[0020] Furthermore, the top and bottom of the guide frame are fixedly provided with limit guide grooves, the middle part of the guide frame is fixedly provided with a guide rod, the outer side of the guide rod is movably sleeved with a counterweight block, the outer side of the counterweight block is movably connected to the middle part of the guide frame, a silicon oxide ceramic bushing is fixedly provided at the assembly point of the counterweight block and the guide rod, and the bottom of the guide frame is fixedly provided with a limit guide hole.

[0021] The combination of the counterweight block and the connecting rod pushes the movable card seat, and the design of the counterweight block balances the structural center of gravity of the pallet.

[0022] Furthermore, sliding pins are fixed to the top and bottom of the rear side of the movable clamping seat, and the sliding pins cooperate with the limiting guide grooves. The top of the sliding pin located at the bottom of the movable clamping seat is movably connected to a connecting rod, and the top of the connecting rod is movably connected to the bottom of the counterweight block, and the connection between the sliding pin and the connecting rod extends into the limiting guide hole.

[0023] Furthermore, a second card slot is fixedly provided at the front of the movable card seat, and the second card slot is detachably connected to the outer side of the locking rod, and the maximum distance between the second card slot and the first card slot exceeds the distance between four consecutively arranged locking rods by 2mm-6mm.

[0024] 3. Beneficial effects:

[0025] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0026] The present invention provides an annealing furnace for nonferrous metal processing. In the prior art, the roller conveyor lines symmetrically arranged can meet the needs of two workpieces with different annealing times. By adding two chain plate conveyor lines, the locking rod, the fixed clamping seat and the movable clamping seat are coordinated to complete the assembly process of the chain plate conveyor lines and the tray. Under the premise of minimizing the change of the internal structure of the original annealing furnace equipment and the lowest transformation cost, the annealing furnace can simultaneously anneal four workpieces with different annealing times. Considering that the workpiece can be buried in sand during the annealing process, the tray structure design in the present application can meet the sand buried annealing process demand of the workpiece, and further improve the utilization rate of the annealing furnace.

[0027] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A three-dimensional diagram of the structure of the present invention;

[0029] Figure 2 A half-cut perspective view of a first heat source structure of the present invention;

[0030] Figure 3 is a three-dimensional diagram of the first heat source structure of the present invention;

[0031] Figure 4 is a three-dimensional diagram of the second heat source structure of the present invention;

[0032] Figure 5 A three-dimensional diagram of the tray structure of the present invention;

[0033] Figure 6 is a three-dimensional diagram of the locking rod structure of the present invention;

[0034] Figure 7 A half-section perspective view of the guide frame structure of the present invention;

[0035] Figure 8 For the present invention Figure 7 A magnified view of the structure at center A;

[0036] Fig. 9 It is an assembly diagram of the guide frame structure of the present invention;

[0037] Fig.10 A half-section top view of the mounting frame structure of the present invention;

[0038] Fig.11 For the present invention Fig.10 A magnified view of the structure at B in the middle.

[0039] Reference numerals:

[0040] Annealing furnace-1; support frame-11; roller conveyor line-12; top shell-13; first heat source-14; second heat source-15; fixed frame-16; linear module-17;

[0041] Chain conveyor line-2;

[0042] Mounting rack - 3;

[0043] Locking lever - 4;

[0044] Tray - 5; Handle - 51;

[0045] Fixed deck - 6;

[0046] Guide frame-7; limiting guide groove-71; guide rod-72; counterweight block-73; limiting guide hole-74;

[0047] Movable card seat-8; sliding pin-81; connecting rod-82. DETAILED DESCRIPTION

[0048] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0049] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element; when an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element; the terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items. Example

[0051] Reference Figure 1-11 , an annealing furnace for nonferrous metal processing, comprising the following structure:

[0052] The annealing furnace 1 has a support frame 11 fixedly disposed at the bottom thereof, and roller conveyor lines 12 are fixedly disposed in the middle of the support frame 11 toward the left and right sides.

[0053] The chain plate conveyor line 2 has a plurality of mounting brackets 3 fixedly disposed on the outer side of the chain plate of the chain plate conveyor line 2 , and a locking rod 4 fixedly disposed on the outer side of the mounting bracket 3 .

[0054] The tray 5 has a fixed card seat 6 fixedly disposed at the right rear end of the tray 5 , a guide frame 7 fixedly disposed at the right front part of the tray 5 , and a movable card seat 8 disposed at the front end of the guide frame 7 .

[0055] In this embodiment, a top shell 13 is fixedly disposed on the top of the support frame 11 , and a conveying hole is penetrated through the front and rear sides of the bottom of the top shell 13 , and the conveying hole penetrates the inner furnace cavity of the annealing furnace 1 .

[0056] At least three first heat sources 14 are provided in the middle of the support frame 11 from front to back, the outer sides of the multiple first heat sources 14 are fixedly connected to the middle of the fixed frame 16, the outer side of the fixed frame 16 is slidably connected to the middle of the support frame 11, and the heat radiation area of ​​the first heat source 14 covers the roller conveyor line 12 and the chain conveyor line 2. A linear module 17 is fixedly provided on the left side of the support frame 11, and the moving ends of the linear module 17 are respectively fixedly connected to the bottom of the fixed frame 16.

[0057] At least three second heat sources 15 are fixedly disposed on the top of the inner wall of the top shell 13 from front to back, and the heat radiation area of ​​the second heat source 15 covers the roller conveyor line 12 and the chain conveyor line 2 .

[0058] The first heat source 14 and the second heat source 15 are provided to perform annealing heating and heat preservation treatment on the workpieces transported on the roller conveyor line 12 and the chain conveyor line 2. The user can adjust the working distance between the first heat source 14 and the roller conveyor line 12 by cooperating with the linear module 17 and the fixed frame 16 according to the use needs, reduce the working distance between the first heat source 14 and the second heat source 15, and heat and heat preserve the workpieces transported outside the roller conveyor line 12 and the chain conveyor line 2.

[0059] In this embodiment, the axial direction of the driving roller of the chain conveyor line 2 is perpendicular to the axial direction of the roller bar of the roller conveyor line 12, and the front and rear ends of the chain conveyor line 2 extend to the front and rear ends of the annealing furnace 1 respectively. The chain conveyor line 2 is symmetrically arranged about the middle of the annealing furnace 1, and the outer frames of the two chain conveyor lines 2 are fixedly connected to the left and right sides of the top of the support frame 11 respectively. The outer sides of the two chain conveyor lines 2 are respectively divided into avoidance zones on the left and right sides of the inner wall of the top shell 13, and the width of the avoidance zone is greater than the assembly structure width of the mounting frame 3 and the locking rod 4.

[0060] In combination with the ambient temperature inside the annealing furnace 1 and the vertical setting requirements, the chain conveyor line 2 is selected to be placed on both sides of the roller conveyor line 12. At the same time, when the chain conveyor line 2 and the pallet 5 cooperate in conveying, the pallet 5 will not enter the area between the chain conveyor line 2 and the top shell 13.

[0061] The symmetrically arranged roller conveyor line 12 in the prior art can meet the needs of two different annealing time workpieces. By adding two chain plate conveyor lines 2, the locking rod 4, the fixed clamping seat 6 and the movable clamping seat 8 cooperate to complete the assembly processing of the chain plate conveyor line 2 and the tray 5. Under the premise of minimizing the change of the internal structure of the original annealing furnace 1 equipment and the lowest transformation cost, the annealing furnace 1 can simultaneously anneal four different annealing time workpieces. Considering that the workpiece can be buried in sand during the annealing process, the tray 5 structural design in the present application can meet the sand buried annealing treatment needs of the workpiece, thereby further improving the utilization rate of the annealing furnace 1.

[0062] In this embodiment, handles 51 are welded to the front and rear sides of the tray 5 , and the middle portion of the tray 5 is divided into a supporting area, which can be filled with sand.

[0063] The setting of the handle 51 makes it convenient for workers wearing heat-insulating work equipment to remove and assemble the pallet 5 from the chain conveyor line 2, and makes it convenient for the chain conveyor line 2 to be set closer to the left and right sides of the inner wall of the top shell 13, thereby avoiding the installation of the chain conveyor line 2 occupying the conveying space of the roller conveyor line 12.

[0064] The design of the supporting area facilitates the user to place the workpiece on the tray 5 for direct annealing or buried sand annealing.

[0065] In this embodiment, a first slot is fixedly provided on the front side of the fixed card seat 6 , and the first slot is detachably connected to the outer side of the locking rod 4 . The top and bottom of the fixed card seat 6 respectively contact the top and bottom of the inner wall of the mounting frame 3 .

[0066] The detachable connection between the fixed card seat 6 and the locking rod 4 facilitates the user to install or remove the pallet 5 outside the chain conveyor line 2, wherein the fixed assembly of the fixed card seat 6 and the pallet 5 completes the working position determination of the pallet 5 outside the chain conveyor line 2.

[0067] In this embodiment, the top and bottom of the guide frame 7 are fixedly provided with a limiting guide groove 71, the middle part of the guide frame 7 is fixedly provided with a guide rod 72, the outer side of the guide rod 72 is movably sleeved with a counterweight block 73, the outer side of the counterweight block 73 is movably connected to the middle part of the guide frame 7, a silicon oxide ceramic bushing is fixedly provided at the assembly point of the counterweight block 73 and the guide rod 72, and a limiting guide hole 74 is fixedly provided at the bottom of the guide frame 7.

[0068] The limiting guide groove 71 cooperates with the sliding pin 81 to complete the sliding guidance and assembly of the movable seat 8 on the guide frame 7. The guide rod 72 completes the up and down sliding guidance processing of the counterweight block 73. Combined with the high temperature environment inside the annealing furnace 1, a silicon oxide ceramic sleeve is adopted to reduce the friction between the counterweight block 73 and the guide rod 72. The limiting guide hole 74 completes the forward and backward movement limit of the sliding pin 81 on the guide frame 7.

[0069] In this embodiment, sliding pins 81 are fixed to the top and bottom of the rear side of the movable clamping seat 8, and the sliding pin 81 cooperates with the limiting guide groove 71. The top of the sliding pin 81 at the bottom of the movable clamping seat 8 is movably connected with a connecting rod 82. The top of the connecting rod 82 is movably connected to the bottom of the counterweight block 73, and the connection between the sliding pin 81 and the connecting rod 82 extends into the limiting guide hole 74.

[0070] The movable card seat 8 cooperates with the sliding pin 81 and moves back and forth on the guide frame 7. The connecting rod 82 completes the cooperation between the counterweight block 73 and the sliding pin 81. When the movable card seat 8 contacts the locking rod 4, the counterweight block 73 slides downward along the guide rod 72 under the action of gravity, ensuring the connection between the movable card seat 8 and the locking rod 4, preventing the pallet 5 from falling off from the outside of the chain conveyor line 2.

[0071] When removing the tray 5 at the end of the annealing furnace 1, a worker is required to wear heat-insulating equipment and pull the tray 5 along the moving direction of the tray 5, first releasing the connection between the fixed holder 6 and the locking rod 4. At this time, the counterweight block 73 slides downward along the guide rod 72 to ensure that the movable holder 8 continues to be connected to the locking rod 4. The user is required to continue pulling along the moving direction of the tray 5, and the connection between the movable holder 8 and the locking rod 4 is released only after the connection between the sliding pin 81 and the connecting rod 82 reaches the front of the limiting guide hole 74 and cannot move.

[0072] In this embodiment, a second slot is fixedly provided at the front of the movable socket 8, and the second slot is detachably connected to the outer side of the locking rod 4. The maximum distance between the second slot and the first slot exceeds the distance between four consecutively arranged locking rods 4 by 2mm-6mm.

[0073] In combination with the annular conveying structure of the chain conveyor line 2, a movable card seat 8 that slides forward and backward is set, and a structural combination of a sliding pin 81, a connecting rod 82, a counterweight block 73 and a guide rod 72 is set. After the fixed card seat 6 is connected to the locking rod 4, it is ensured that the movable card seat 8 is stably against the outer side of the locking rod 4. This structure is simple and can withstand the high temperature environment inside the annealing furnace 1, and is easy to use. At the same time, the design and use of the counterweight block 73 avoids the overall center of gravity from being away from the chain conveyor line 2 when the sand burying operation is carried out in the supporting area of ​​the pallet 5, thereby improving the operating stability of the chain conveyor line 2.

[0074] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. An annealing furnace for nonferrous metal processing, characterized in that: Includes the following structure: An annealing furnace (1), wherein a support frame (11) is fixedly provided at the bottom of the annealing furnace (1), and roller conveyor lines (12) are fixedly provided in the middle of the support frame (11) towards the left and right sides; A chain plate conveyor line (2), wherein a plurality of mounting frames (3) are fixedly provided on the outer side of the chain plates of the chain plate conveyor line (2), and a locking rod (4) is fixedly provided on the outer side of the mounting frame (3); A tray (5), wherein a fixed card seat (6) is fixedly provided at the right rear end of the tray (5), a guide frame (7) is fixedly provided at the right front part of the tray (5), and a movable card seat (8) is provided at the front end of the guide frame (7); Handles (51) are welded to the front and rear sides of the tray (5), and the middle part of the tray (5) is divided into a supporting area, which can be filled with sand; A first card slot is fixedly provided on the front side of the fixed card seat (6), and the first card slot is detachably connected to the outer side of the locking rod (4), and the top and bottom of the fixed card seat (6) respectively contact the top and bottom of the inner wall of the mounting frame (3); The top and bottom of the guide frame (7) are both fixedly provided with a limit guide groove (71), the middle of the guide frame (7) is fixedly provided with a guide rod (72), the outer side of the guide rod (72) is movably sleeved with a counterweight block (73), the outer side of the counterweight block (73) is movably connected to the middle of the guide frame (7), a silicon oxide ceramic shaft sleeve is fixedly provided at the assembly point of the counterweight block (73) and the guide rod (72), and a limit guide hole (74) is fixedly provided at the bottom of the guide frame (7); The top and bottom of the rear side of the movable clamping seat (8) are fixedly provided with a sliding pin (81), the sliding pin (81) cooperates with the limiting guide groove (71), the top of the sliding pin (81) located at the bottom of the movable clamping seat (8) is movably connected to a connecting rod (82), the top of the connecting rod (82) is movably connected to the bottom of the counterweight block (73), and the connection between the sliding pin (81) and the connecting rod (82) extends into the limiting guide hole (74).

2. The annealing furnace for nonferrous metal processing according to claim 1, characterized in that: A top shell (13) is fixedly provided on the top of the support frame (11), and a conveying hole is penetrated through the front and rear sides of the bottom of the top shell (13), and the conveying hole penetrates the internal furnace cavity of the annealing furnace (1); At least three first heat sources (14) are arranged in the middle of the support frame (11) from front to back, the outer sides of the plurality of first heat sources (14) are fixedly connected to the middle of the fixed frame (16), the outer side of the fixed frame (16) is slidably connected to the middle of the support frame (11), the heat radiation area of ​​the first heat source (14) covers the roller conveyor line (12) and the chain conveyor line (2), and a linear module (17) is fixedly arranged on the left side of the support frame (11), and the movable ends of the linear module (17) are respectively fixedly connected to the bottom of the fixed frame (16); At least three second heat sources (15) are fixedly arranged on the top of the inner wall of the top shell (13) from front to back, and the heat radiation area of ​​the second heat source (15) covers the roller conveyor line (12) and the chain conveyor line (2).

3. The annealing furnace for nonferrous metal processing according to claim 1, characterized in that: The axial direction of the driving roller of the chain conveyor line (2) is perpendicular to the axial direction of the roller bar of the roller conveyor line (12); the front and rear ends of the chain conveyor line (2) extend to the front and rear ends of the annealing furnace (1), respectively; the chain conveyor line (2) is symmetrically arranged with respect to the middle of the annealing furnace (1); the outer frames of the two chain conveyor lines (2) are respectively fixedly connected to the left and right sides of the top of the support frame (11); the outer sides of the two chain conveyor lines (2) are respectively divided into a clearance zone with the left and right sides of the inner wall of the top shell (13); the width of the clearance zone is greater than the assembly structure width of the mounting frame (3) and the locking rod (4).

4. The annealing furnace for nonferrous metal processing according to claim 1, characterized in that: A second card slot is fixedly provided at the front of the movable card seat (8), and the second card slot is detachably connected to the outer side of the locking rod (4), and the maximum distance between the second card slot and the first card slot exceeds the distance between four consecutively arranged locking rods (4) by 2 mm to 6 mm.

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