Controllable atmosphere heat treatment metal product surface pretreatment device

Abstract

The utility model provides a controllable atmosphere heat treatment metal product surface pretreatment device, which relates to the technical field of metal processing and comprises a pretreatment derusting pool, a workpiece conveying table is fixedly connected above the pretreatment derusting pool, and a conveying driving part is fixedly connected to the left side of the front of the workpiece conveying table. According to the pre-derusting device for the controlled atmosphere heat treatment of the metal workpiece, the mode that the conveying device is matched with the solution for derusting is adopted, the metal workpiece fixed to the conveying device passes through the pretreatment derusting pool, and the derusting solution is sprayed to the outer surface of the metal workpiece through the solution spraying mechanism in the pretreatment derusting pool; the spraying agent makes contact with the outer surface of the metal workpiece to conduct rust removal work, rust removal liquid can evenly flow through the outer surface of the metal, the rust removal efficiency is improved, and the problems that in a traditional solution rust removal mode, the rust removal liquid is static in the workpiece soaking process, ions in the solution cannot be promoted to make contact reaction with rust, and the rust removal efficiency is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing, in particular to a surface pretreatment device for metal products with controlled atmosphere heat treatment. Background Art

[0002] In the pretreatment process of controlled atmosphere heat treatment of metal products, rust removal is a key step. The main purpose of rust removal is to remove the rust layer and other impurities on the surface of metal products, provide a clean surface condition for subsequent heat treatment, and ensure the effect and quality of heat treatment. Chemical rust removal is to remove the rust layer on the surface of steel through chemical reaction. Commonly used chemical rust removal methods include pickling and solution rust removal. Solution rust removal mainly relies on chemical reaction to make rust react with ions in solution to generate compounds soluble in solution, thereby achieving the effect of removing rust.

[0003] In the traditional solution rust removal method, a bracket is needed to fix the metal workpiece, and then the metal workpiece and the bracket are immersed in the rust removal solution. After a certain period of rust removal reaction, it is extracted from the solution, and finally the workpiece is removed from the bracket for the next step of surface pretreatment. The process is cumbersome, and the fixation and disassembly process of the workpiece is troublesome. In addition, the rust removal solution is stationary during the immersion of the workpiece, which cannot promote the contact reaction between ions in the solution and rust, affecting the rust removal efficiency. Utility Model Content

[0004] The disclosed embodiment relates to a controlled atmosphere heat treatment surface pretreatment device for metal products, so as to solve the problem that in the traditional solution rust removal method, a bracket is needed to fix the metal workpiece, and then the metal workpiece and the bracket are immersed in a rust removal solution, and then the workpiece is extracted from the solution after a certain period of rust removal reaction, and finally the workpiece is removed from the bracket for the next step of surface pretreatment. The process is cumbersome, and the fixing and disassembly processes of the workpiece are troublesome. In addition, the rust removal solution is stationary during the immersion of the workpiece, which cannot promote the contact reaction between ions in the solution and rust, thereby affecting the rust removal efficiency.

[0005] According to a first aspect of the present disclosure, a surface pretreatment device for metal products by controlled atmosphere heat treatment is provided, which specifically includes a pretreatment rust removal tank, a workpiece conveying platform is fixedly connected to the top of the pretreatment rust removal tank, a conveying drive member is fixedly connected to the front left side of the workpiece conveying platform, the conveying drive member rotating shaft is connected to and drives the workpiece conveying platform through a coupling, a rust removal liquid delivery pump is fixedly connected to the inside of the pretreatment rust removal tank by bolts, a spray pipe is fixedly connected to the output end of the rust removal liquid delivery pump, and the spray pipe is fixedly connected to the inner wall of the pretreatment rust removal tank, and a discharge container is provided on the right side of the pretreatment rust removal tank, and the discharge container is located below the right end of the workpiece conveying platform.

[0006] In at least some embodiments, the pretreatment rust removal tank is a rectangular tank body with an opening facing upward, a rust removal tank inlet is provided on the upper edge of the left wall of the pretreatment rust removal tank, and a rust removal tank outlet is provided on the upper edge of the right wall of the pretreatment rust removal tank.

[0007] In at least some embodiments, a spray branch pipe is connected to the spray main pipe, and a rust removal liquid spray head with an outlet facing upward is fixedly connected to the upper pipe wall of the spray branch pipe, and the rust removal liquid spray head is an atomizing spray head.

[0008] In at least some embodiments, the workpiece conveying platform is a conveyor belt mechanism, and a fixed-point clamping mechanism is fixedly installed on the outer surface of the belt body of the workpiece conveying platform.

[0009] In at least some embodiments, the fixed-point clamping mechanism includes two sets of clamping frames arranged opposite to each other, and the clamping frames include a conveyor clamping seat, a clamping support plate and a positioning grid plate.

[0010] In at least some embodiments, the conveyor table clamping seat is connected to the outer surface of the belt body of the workpiece conveyor table by bolts, the two clamping support plates are vertically welded to the upper surface of the conveyor table clamping seat, and a positioning grid is fixedly connected to the inner surface of the clamping support plate, the positioning grid is perpendicular to the inner surface of the clamping support plate, and the positioning grid is inclined to the outer surface of the belt body of the workpiece conveyor table.

[0011] In at least some embodiments, an outer edge arc groove with an arc-shaped structure is provided on the edge of the positioning grid.

[0012] The utility model provides a surface pretreatment device for metal products by heat treatment with a controlled atmosphere, which has the following beneficial effects:

[0013] The pre-rust removal device for controlled atmosphere heat treatment of metal workpieces in the utility model adopts a conveying device in combination with a solution for rust removal. The metal workpiece fixed on the conveying device passes through a pre-treatment rust removal tank, and a rust removal solution is sprayed onto the outer surface of the metal workpiece through a solution spraying mechanism inside the pre-treatment rust removal tank, so that the spraying agent contacts the outer surface of the metal workpiece to perform rust removal. In the spray rust removal mode, the rust removal liquid can flow evenly over the outer surface of the metal, thereby improving the rust removal efficiency.

[0014] The workpiece conveying platform in the present application is provided with a fixed-point automatic grasping and releasing mechanism for workpieces. During the counterclockwise rotation of the belt body of the workpiece conveying platform, the two clamping frames in the fixed-point clamping mechanism transferred to the support tube position at the left end of the workpiece conveying platform increase the angle between the two clamping support plates as the belt body surface bends, and the spacing between the two outer edge arc grooves in the same group of fixed-point clamping mechanisms increases. At this time, the staff places the pipe and rod workpiece in the middle of the two outer edge arc grooves. As the belt body continues to rotate, the two clamping frames are reset, and the pipe and rod workpiece is fixed again through the two outer edge arc grooves to achieve automatic clamping of the workpiece. Similarly, when the workpiece is transported to the right end of the workpiece conveying platform, the spacing between the two positioning grids increases, so that the rust-removed workpiece automatically falls into the unloading container for concentration and temporary storage, replacing the steps of manual loading and unloading and reducing the intensity of manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 A schematic diagram showing the overall structure of the present application;

[0019] Figure 2 The schematic diagram of the structure inside the pretreatment rust removal tank of the present application is shown;

[0020] Figure 3 The schematic diagram of the structure of the spray main pipe of the present application is shown;

[0021] Figure 4 Shows this application Figure 1 A schematic diagram of the front view of the structure;

[0022] Figure 5 The schematic diagram of the structure of the workpiece conveying platform of the present application is shown;

[0023] Figure 6 It shows a schematic diagram of the structure of the clamping seat of the conveyor platform of the present application;

[0024] Figure 7 This application shows Figure 4 A schematic diagram of the partially enlarged structure at point A in the middle;

[0025] Figure 8 This application shows Figure 4 A schematic diagram of the partially enlarged structure at B in the middle;

[0026] Fig. 9 This application shows Figure 5Schematic diagram of the partially enlarged structure at point C in the middle.

[0027] Reference numerals list

[0028] 1. Pretreatment rust removal tank; 101. Rust removal tank inlet; 102. Rust removal tank outlet; 2. Rust removal liquid delivery pump; 3. Spray main pipe; 301. Spray branch pipe; 302. Rust removal liquid spray head; 4. Workpiece conveying platform; 401. Conveying platform clamping seat; 402. Clamping support plate; 403. Positioning grid plate; 404. Outer edge arc groove; 5. Conveying drive member; 6. Unloading container. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1: Please refer to Figures 1 to 9 :

[0031] The utility model proposes a controlled atmosphere heat treatment surface pretreatment device for metal products, comprising: a pretreatment rust removal tank 1, a workpiece conveying platform 4 is fixedly connected above the pretreatment rust removal tank 1, a conveying driving member 5 is fixedly connected to the front left side of the workpiece conveying platform 4, the conveying driving member 5 rotating shaft is connected to and drives the workpiece conveying platform 4 through a coupling, a rust removal liquid delivery pump 2 is fixedly connected to the inside of the pretreatment rust removal tank 1 through bolts, the output end of the rust removal liquid delivery pump 2 is fixedly connected to a spray pipe 3, the spray pipe 3 is fixedly connected to the inner wall of the pretreatment rust removal tank 1, and a discharge container is provided on the right side of the pretreatment rust removal tank 1. The unloading container 6 is located below the right end of the workpiece conveying platform 4, the pretreatment rust removal tank 1 is a rectangular tank body with an opening facing upward, a rust removal tank inlet 101 is provided on the upper edge of the left wall of the pretreatment rust removal tank 1, and a rust removal tank outlet 102 is provided on the upper edge of the right wall of the pretreatment rust removal tank 1; the rust removal solution is stored by the pretreatment rust removal tank 1, the input pipe end of the rust removal liquid delivery pump 2 is located below the liquid surface, the rust removal solution is delivered to the inside of the spray main pipe 3 by the rust removal liquid delivery pump 2, and is delivered to each rust removal liquid spray head 302 through the spray branch pipe 301, and the rust removal liquid is sprayed upward onto the surface of the metal workpiece.

[0032] In the disclosed embodiment, a spray branch pipe 301 is connected to the spray main pipe 3, and a rust removal liquid spray head 302 with an outlet facing upward is fixedly connected to the upper pipe wall of the spray branch pipe 301, and the rust removal liquid spray head 302 is an atomizing nozzle; through the cooperation of the spray main pipe 3, the spray branch pipe 301, the rust removal liquid spray head 302 and the rust removal liquid delivery pump 2, the rust removal solution is evenly sprayed onto the outer surface of the workpiece to remove the rust on the outer surface of the workpiece, so that the rust removal liquid can flow more evenly through the outer surface of the metal workpiece, thereby improving the uniformity of rust removal.

[0033] Embodiment 2, on the basis of embodiment 1, the workpiece conveying platform 4 is a conveyor belt mechanism, and a fixed-point clamping mechanism is fixedly installed on the outer surface of the belt body of the workpiece conveying platform 4; the fixed-point clamping mechanism includes two sets of clamping frames arranged opposite to each other, and the clamping frames include a conveying platform clamping seat 401, a clamping support plate 402 and a positioning grid plate 403; the conveying platform clamping seat 401 is connected to the outer surface of the belt body of the workpiece conveying platform 4 by bolts, and two clamping support plates 402 are vertically welded to the upper surface of the conveying platform clamping seat 401, and a positioning grid plate 403 is fixedly connected to the inner surface of the clamping support plate 402, and the positioning grid plate 403 is perpendicular to the inner surface of the clamping support plate 402, and the positioning grid plate 403 is inclined to the outer surface of the belt body of the workpiece conveying platform 4; a circular arc is provided on the edge of the positioning grid plate 403 shaped structure of the outer edge arc groove 404; during the counterclockwise rotation of the belt body of the workpiece conveying platform 4, the two clamping frames in the fixed-point clamping mechanism transferred to the left end support tube position of the workpiece conveying platform 4 increase the angle between the two clamping support plates 402 as the belt surface bends, and the distance between the two outer edge arc grooves 404 in the same group of fixed-point clamping mechanisms increases. At this time, the staff places the pipe and rod workpiece between the two outer edge arc grooves 404. As the belt body continues to rotate, the two clamping frames are reset, and the pipe and rod workpiece is fixed again through the two outer edge arc grooves 404, realizing automatic clamping of the workpiece. Similarly, when the workpiece is transported to the right end of the workpiece conveying platform 4, the distance between the two positioning grid plates 403 increases, so that the rust-removed workpiece automatically falls into the unloading container 6 for concentration and temporary storage, replacing manual loading and unloading.

[0034] The working principle of this embodiment is as follows: first, the transmission driving member 5 is started, and the workpiece conveying platform 4 is driven to rotate slowly counterclockwise through the transmission driving member 5, and the rust removal liquid delivery pump 2 is turned on. The rust removal solution is delivered to the inside of the spray main pipe 3 through the rust removal liquid delivery pump 2, and is delivered to each rust removal liquid spray head 302 through the spray branch pipe 301, and the rust removal liquid is sprayed upward. The staff places the pipe and rod workpiece in the middle of the two outer edge arc grooves 404 at the lower left end of the workpiece conveying platform 4. As the belt body continues to rotate, the two clamping frames are reset, and the pipe and rod workpiece is fixed and conveyed to the right through the two outer edge arc grooves 404. When the metal workpiece enters the pretreatment rust removal tank 1, the rust removal liquid is sprayed upward onto the surface of the metal workpiece to remove rust from the metal workpiece. After the rust removal work is completed, when the workpiece is conveyed to the right end of the workpiece conveying platform 4, the distance between the two positioning grid plates 403 increases, so that the workpiece after rust removal automatically falls into the unloading container 6 for concentration and temporary storage, which is convenient for subsequent processing work.

[0035] In this article, there are a few points to note:

[0036] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0037] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0038] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A controlled atmosphere heat treatment metal product surface pretreatment device, comprising: A pretreatment rust removal tank (1), wherein a workpiece conveying platform (4) is fixedly connected to the top of the pretreatment rust removal tank (1), characterized in that a conveying drive member (5) is fixedly connected to the front left side of the workpiece conveying platform (4), and the rotating shaft of the conveying drive member (5) is connected to and drives the workpiece conveying platform (4) through a coupling, and a rust removal liquid delivery pump (2) is fixedly connected to the inside of the pretreatment rust removal tank (1) by bolts, and the output end of the rust removal liquid delivery pump (2) is fixedly connected to a spray pipe (3), and the spray pipe (3) is fixedly connected to the inner wall of the pretreatment rust removal tank (1), and a discharge container (6) is provided on the right side of the pretreatment rust removal tank (1), and the discharge container (6) is located below the right end of the workpiece conveying platform (4).

2. The surface pretreatment device for metal products by controlled atmosphere heat treatment according to claim 1, characterized in that: The pretreatment rust removal tank (1) is a rectangular tank body with an opening facing upwards. A rust removal tank inlet (101) is provided at the upper edge of the left wall of the pretreatment rust removal tank (1), and a rust removal tank outlet (102) is provided at the upper edge of the right wall of the pretreatment rust removal tank (1).

3. The surface pretreatment device for metal products by controlled atmosphere heat treatment according to claim 1, characterized in that: The spray main pipe (3) is connected to a spray branch pipe (301), and a rust removal liquid spray head (302) with an outlet facing upward is fixedly connected to the upper pipe wall of the spray branch pipe (301).

4. The device for pretreating the surface of metal products by controlled atmosphere heat treatment according to claim 1, characterized in that: The workpiece conveying platform (4) is a conveyor belt mechanism, and a fixed-point clamping mechanism is fixedly mounted on the outer surface of the belt body of the workpiece conveying platform (4).

5. The surface pretreatment device for metal products by controlled atmosphere heat treatment according to claim 4, characterized in that: The fixed-point clamping mechanism comprises two sets of clamping frames arranged opposite to each other, and the clamping frames comprise a conveying platform clamping seat (401), a clamping support plate (402) and a positioning grid plate (403).

6. The surface pretreatment device for metal products by controlled atmosphere heat treatment according to claim 5, characterized in that: The conveyor table clamping seat (401) is connected to the outer surface of the belt body of the workpiece conveyor table (4) by bolts, and the two clamping support plates (402) are vertically welded to the upper surface of the conveyor table clamping seat (401), and a positioning grid plate (403) is fixedly connected to the inner surface of the clamping support plate (402), and the positioning grid plate (403) is perpendicular to the inner surface of the clamping support plate (402), and the positioning grid plate (403) is inclined to the outer surface of the belt body of the workpiece conveyor table (4).

7. The surface pretreatment device for metal products by controlled atmosphere heat treatment according to claim 6, characterized in that: An outer edge arc groove (404) with an arc-shaped structure is provided on the edge of the positioning grid plate (403).

Images