Production process and processing equipment of luggage case pull rod

Abstract

The invention discloses a production process and processing equipment of a luggage case pull rod, relates to the technical field of pull rod production, and aims to provide a production process of a pull rod with good corrosion resistance and processing equipment for producing the pull rod, and the production process of the pull rod comprises the following steps: S1, carrying out anodic oxidation treatment on the pull rod made of a metal material; the method comprises the following specific steps that a, electrolyte is injected into an electrolytic tank, sulfuric acid electrolyte is selected as the electrolyte, and the concentration of sulfuric acid is 10%-20%; b, the temperature of the electrolyte is adjusted, and the temperature of the electrolyte is controlled to be 18-23 DEG C; the method has the beneficial effects that the pull rod is subjected to anodic oxidation treatment, an oxidation film is formed on the surface of the pull rod, the corrosion resistance of the pull rod is improved, after residual electrolyte on the surface of the pull rod is cleaned and dried, the pull rod is subjected to electrophoresis treatment, an electrophoresis paint film is formed on the surface of the pull rod, and the corrosion resistance of the pull rod is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of drawbar production, and more particularly to a production process and processing equipment for a luggage case drawbar. Background Art

[0002] A trolley case is a suitcase with a trolley and wheels, and is widely used because of its convenience. The trolley in the trolley case is mostly divided into a first trolley and a second trolley that is sleeved outside the first trolley, and a clamping assembly is installed inside the first trolley for clamping the first trolley and the second trolley. Currently, the common materials of the first trolley and the second trolley are plastic and metal, respectively. The metal trolley has poor corrosion resistance and is prone to rust after rainy weather.

[0003] In addition, during the production of the first tie rod and the second tie rod, most of the processing equipment is used to coat the surface of the first tie rod and the second tie rod to improve the corrosion resistance of the first tie rod and the second tie rod. However, most of the current processing equipment includes an electrolytic cell, temperature control equipment, power-on equipment, etc. During electrolysis, the first tie rod and the second tie rod are poured into the electrolytic cell. After the electrolysis is completed, the first tie rod and the second tie rod need to be fished out of the electrolyte in turn, which is inefficient. Moreover, during electrolysis, the first tie rod and the second tie rod are stacked in the electrolytic cell, which is prone to uneven electrolysis. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a production process and processing equipment for a luggage case pull rod to solve the technical problems mentioned in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a production process for a luggage case pull rod, comprising: S1: Anodize the metal rod to form an oxide film on the rod surface. The specific steps are as follows: a: Inject electrolyte into the electrolytic cell. The electrolyte is sulfuric acid electrolyte with a sulfuric acid concentration of 10-20%; b: The electrolyte temperature is adjusted by the temperature control device to control the electrolyte temperature at 18-23°C; c: Place the rod in the electrolytic cell and use it as an anode; d: Apply a DC power supply to make the rod undergo an electrolytic reaction in the electrolytic cell for 40-45 minutes, so that an oxide film is formed on the surface of the rod; S2: cleaning and drying the tie rod after anodizing treatment to remove residual electrolyte on the surface of the tie rod; S3: Performing electrophoresis treatment on the tie rod to form an electrophoretic paint film on the surface of the tie rod.

[0006] The present invention is further configured that step S3 comprises: S301: injecting electrophoresis liquid into the electrophoresis pool; S302: adjusting the temperature of the electrophoresis liquid by a temperature control device so that the temperature of the electrophoresis liquid is controlled at 15-20° C.; S303: placing the tie rod in an electrophoresis bath and applying a direct current power supply to allow the tie rod to undergo electrophoresis treatment in the electrophoresis bath for 2.5-3 minutes, so that an electrophoretic paint film is formed on the surface of the tie rod.

[0007] A processing device for a luggage case pull rod comprises a reaction tank and also comprises: A tray assembly is used to hold the pull rods to be electrolyzed or the pull rods after electrolysis, and the tray assembly is slidably arranged on the reaction tank; A clamping assembly, used for clamping the pull rod; The driving mechanism is used to drive the clamping assembly to move so as to drive the pull rod on the clamping assembly to be immersed in the reaction pool or to be moved out of the reaction pool.

[0008] The present invention is further configured such that the clamping assembly includes a support plate and two groups of moving assemblies, the support plate is provided with a first driving member for controlling the two groups of moving assemblies to move laterally, the support plate is also provided with a guiding assembly for guiding the two groups of moving assemblies, and the two groups of moving assemblies are fixedly provided with clamping members for clamping the pull rod.

[0009] The present invention is further configured such that the support plate is movably hinged on one side of the reaction tank, and the support plate can rotate around the hinge between the support plate and the reaction tank under the action of the driving mechanism. When the support plate rotates downward, the clamping assembly and the pull rod installed on the clamping assembly are driven to be immersed in the electrolyte in the reaction tank. When the support plate rotates upward, the clamping assembly and the pull rod installed on the clamping assembly are driven to be moved out of the electrolyte.

[0010] The present invention is further configured such that the driving mechanism includes a first mounting frame, a second mounting frame and a second driving member, the first mounting frame is fixedly mounted on one side of the reaction pool, the second mounting frame is fixedly mounted on the lower surface of the support plate, and both ends of the second driving member are rotatably connected to the first mounting frame and the second mounting frame respectively.

[0011] The present invention is further configured such that the first driving member can be a double-rod cylinder, a single-rod cylinder, or an electric push rod, and the first driving member is preferably a double-rod cylinder, which is fixedly mounted on a support plate, and whose telescopic end is connected to the clamping assembly.

[0012] The present invention is further configured such that the second driving member can be a single-rod air cylinder, a single-rod oil cylinder and an electric push rod. The second driving member is preferably a single-rod cylinder, which is rotatably arranged on the first mounting frame, and whose telescopic end is rotatably connected to the second mounting frame.

[0013] The present invention is further configured such that the guide assembly comprises a moving part and a static part that are slidably matched, and the cross-section of the moving part and the static part at the matching point is preferably T-shaped, and can also be circular.

[0014] The present invention is further configured such that the clamping member may be an insertion rod and an insertion block, preferably an insertion rod, and the insertion rod is inserted into the pull rod.

[0015] The present invention is further configured such that the tray assembly includes a support frame and a support seat, a limiting groove is provided on the support seat, and the pull rod is placed in the limiting groove of the support seat.

[0016] Compared with the prior art, the present invention provides a production process and processing equipment for a luggage case pull rod, which has the following beneficial effects: 1. In the production process provided by the present invention, the tie rod is anodized to form an oxide film on its surface to improve the corrosion resistance of the tie rod, and after the residual electrolyte on its surface is cleaned and dried, the tie rod is electrophoretically treated to form an electrophoretic paint film on its surface to further improve the corrosion resistance of the tie rod.

[0017] 2. In the processing equipment provided by the present invention, the pull rod is installed on the clamping parts arranged at intervals. The pull rod is limited by the clamping assembly, and the clamping assembly is driven to rotate by the driving mechanism to drive the pull rod into the reaction tank or move out of the reaction tank. The operation is simple and saves time and effort. In addition, during the anodizing treatment and electrophoresis treatment, the pull rods do not contact each other, thereby avoiding the phenomenon of uneven electrolysis reaction or electrophoresis reaction caused by the accumulation of workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a diagram showing the test results of the membrane-base bonding strength of Comparative Example 1 of the present invention; Figure 2 This is a diagram showing the test results of the membrane-base bonding strength of Comparative Example 2 of the present invention; Figure 3 This is a diagram showing the test results of the membrane-base bonding strength of Example 1 of the present invention; Figure 4 It is a schematic diagram of the overall structure of a processing device for a luggage case pull rod in the present invention; Figure 5 It is a schematic diagram of the structure of the clamping assembly in the present invention; Figure 6 It is a schematic diagram of the structure of the driving mechanism, the reaction pool and the support plate in the present invention; Figure 7It is a structural schematic diagram of the tray assembly in the present invention.

[0019] In the figure: 1. reaction pool; 2. tray assembly; 3. clamping assembly; 4. driving mechanism; 21. Support frame; 22. Support seat; 23. Limiting groove; 31. Support plate; 32. Moving assembly; 33. First driving member; 34. Guide assembly; 35. Clamping member; 341. Moving member; 342. Static member; 41. First mounting frame; 42. Second mounting frame; 43. Second driving member. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0022] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention. Embodiment 1:

[0023] When the pull rod is anodized, the pull rod is placed in an electrolytic cell and used as an anode. An electrolyte is injected into the electrolytic cell. The electrolyte is a sulfuric acid electrolyte with a sulfuric acid concentration of 15%. A DC power supply is applied to allow the pull rod to undergo an electrolytic reaction in the electrolytic cell to form a layer of aluminum oxide film on its surface. The electrolyte temperature is 20°C, the voltage is 15V, and the time is 45 minutes. Embodiment 2:

[0024] When the pull rod is subjected to electrophoresis treatment, an electrophoresis liquid is injected into the electrophoresis pool, wherein the electrophoresis liquid composition is H08-1 black electrophoresis liquid, the solid mass fraction is about 10.5%, and the distilled water mass fraction is about 89.5%. The temperature of the electrophoresis liquid is controlled at 15-20°C by a temperature control device. The pull rod is placed in the electrophoresis pool and a DC power supply is connected with a voltage of (70±2) V for 2.5 minutes to form an electrophoretic paint film on the surface of the pull rod.

[0025] Comparative Example 1: Different from Example 1, in this comparative example, the electrolyte temperature in the anodizing treatment is 10° C., the voltage is 15 V, the treatment time is 45 min, and the remaining steps and conditions are the same as in Example 1.

[0026] Comparative Example 2: Different from Example 1, in this comparative example, the electrolyte temperature in the anodizing treatment is 30° C., the voltage is 15 V, the treatment time is 45 min, and the remaining steps and conditions are the same as in Example 1.

[0027] The workpieces obtained after anodizing treatment in Example 1, Comparative Example 1 and Comparative Example 2 were subjected to a film-substrate bonding test. The bonding test adopted the national standard ISO 20502:2005, and the test instrument was Anton Paar's scratch tester. The diameter of the diamond needle was 0.22 mm, the applied load was 0-80 N, the load speed was 40 N / min, and the test time was 2 minutes. Then, the scratches were observed using an electron microscope, and the load when the coating began to peel off was defined as the film-substrate bonding strength. The test results of Example 1 are shown in FIG. Figure 3 As shown, the test results of Comparative Example 1 are as follows Figure 1 As shown, the test results of Comparative Example 2 are as follows Figure 2 As shown, from Figure 1-3 It can be seen that the membrane-base bonding strength of Comparative Example 1 after solution treatment at an electrolyte temperature of 10°C is low, about 15N, the membrane-base bonding strength of Comparative Example 2 after solution treatment at an electrolyte temperature of 30°C is about 20N, and the membrane-base bonding strength of Example 1 after solution treatment at an electrolyte temperature of 20°C is relatively high, about 30N.

[0028] See also Figure 4-7Based on the anodizing treatment and electrophoresis treatment in steps S1 and S3, the present invention also provides a processing device for a luggage case tie rod, comprising a reaction tank 1, and also comprising a tray assembly 2 for containing the tie rod to be electrolyzed or the tie rod after the electrolysis is completed, and the tray assembly 2 is slidably arranged on the reaction tank 1; a clamping assembly 3 for clamping the tie rod; a driving mechanism 4 for driving the clamping assembly 3 to move, so as to drive the tie rod on the clamping assembly 3 to be immersed in the reaction tank 1 or to be moved out of the reaction tank 1. The clamping assembly 3 comprises a support plate 31 and two groups of moving assemblies 32, and a first driving member 33 for controlling the two groups of moving assemblies 32 to move horizontally is arranged on the support plate 31, and a guide assembly 34 for guiding the two groups of moving assemblies 32 is also arranged on the support plate 31, and a clamping member 35 for clamping the tie rod is fixedly arranged on the two groups of moving assemblies 32. The support plate 31 is hinged on one side of the reaction pool 1, and the support plate 31 can rotate around the hinge of the support plate 31 and the reaction pool 1 under the action of the driving mechanism 4. When the support plate 31 rotates downward, the clamping assembly 3 and the pull rod installed on the clamping assembly 3 are driven to be immersed in the electrolyte in the reaction pool 1. When the support plate 31 rotates upward, the clamping assembly 3 and the pull rod installed on the clamping assembly 3 are driven to move out of the electrolyte. The driving mechanism 4 includes a first mounting frame 41, a second mounting frame 42 and a second driving member 43. The first mounting frame 41 is fixedly mounted on one side of the reaction pool 1, and the second mounting frame 42 is fixedly arranged on the lower surface of the support plate 31. The two ends of the second driving member 43 are respectively connected to the first mounting frame 41 and the second mounting frame 42. The first driving member 33 can be a double-rod cylinder, a single-rod cylinder, or an electric push rod, and the first driving member 33 is preferably a double-rod cylinder, which is fixedly mounted on the support plate 31, and its telescopic end is connected to the clamping assembly 3. The second driving member 43 can be a single-rod cylinder, a single-rod oil cylinder and an electric push rod. The second driving member 43 is preferably a single-rod cylinder, which is rotatably arranged on the first mounting frame 41, and its telescopic end is rotatably connected to the second mounting frame 42. The guide assembly 34 includes a slidingly matched moving member 341 and a static member 342. The cross-section of the moving member 341 and the static member 342 at the matching point is preferably T-shaped, and can also be circular. The clamping member 35 can be an insert rod and an insert block, preferably an insert rod, and the insert rod is inserted into the pull rod. The tray assembly 2 includes a support frame 21 and a support seat 22. A limiting groove 23 is provided on the support seat 22, and the pull rod is placed in the limiting groove 23 of the support seat 22. Embodiment 3:

[0029] When performing anodizing treatment, first pour the electrolyte into the reaction tank 1, wherein the electrolyte is sulfuric acid electrolyte with a sulfuric acid concentration of 15%. The electrolyte temperature is controlled at 18-23°C by an external temperature control device, and then the pull rod is placed in the limit groove 23 of the support seat 22 on the tray assembly 2 by a worker or external equipment, and the tray assembly 2 is placed above the reaction tank 1. At this time, the clamping assembly 3 is located above the tray assembly 2, and the driving mechanism 4 is started to extend its single-rod cylinder, driving the support plate 31 to rotate around its rotating connection with the reaction tank 1, and driving the clamping assembly 3 to move to the corresponding position with the pull rod. The pull rods are all hollow tube structures. At this time, the clamping member 35 on the clamping assembly 3 corresponds to the hollow part of the pull rod, and the first driving member 3 is started. 3, extend the double-rod cylinder, drive the moving component 32 to move along the sliding fit direction of the moving part 341 and the static part 342, and then drive the clamping part 35 to be inserted into the pull rod, and clamp the pull rod through the two sets of moving components 32. After clamping, start the driving mechanism 4 to drive the support plate 31 to rotate around the rotating connection between it and the reaction pool 1, lift it upward through the clamping component 3, remove the pull rod from the tray component 2, and remove the tray component 2 from the reaction pool 1 through workers or external equipment. At this time, start the driving mechanism 4 to drive the clamping component 3 to rotate downward, drive the pull rod on the clamping component 35 into the reaction pool 1, and immerse it in the electrolyte, pass a DC power supply into the electrolyte, and perform anodizing treatment on the pull rod for 45 minutes. Embodiment 4:

[0030] During the electrophoresis treatment, the difference from Example 3 is that an electrophoresis liquid is poured into the reaction tank 1, wherein the electrophoresis liquid comprises H08-1 black electrophoresis liquid, the solid content by mass fraction is approximately 10.5%, the distilled water content by mass fraction is approximately 89.5%, the temperature of the electrophoresis liquid is controlled at 15-20°C by an external temperature control device, and after the pull rod is immersed in the electrophoresis liquid, a DC power supply is introduced to perform electrophoresis treatment on the pull rod for 2.5 min; the remaining steps and conditions are the same as those in Example 3.

[0031] In all the schemes mentioned above, although the embodiments of the present invention have been shown and described, it is understandable to those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production process for a luggage case pull rod, characterized in that: include: S1: Anodize the metal rod to form an oxide film on the rod surface. The specific steps are as follows: a: Inject electrolyte into the electrolytic cell. The electrolyte is sulfuric acid electrolyte with a sulfuric acid concentration of 10-20%; b: Adjust the electrolyte temperature to keep it at 18-23°C; c: Place the rod in the electrolytic cell and use it as an anode; d: Apply a DC power supply to make the rod undergo an electrolytic reaction in the electrolytic cell for 40-45 minutes, so that an oxide film is formed on the surface of the rod; S2: cleaning and drying the tie rod after anodizing treatment to remove residual electrolyte on the surface of the tie rod; S3: Performing electrophoresis treatment on the tie rod to form an electrophoretic paint film on the surface of the tie rod.

2. The production process of a luggage case pull rod according to claim 1, characterized in that: The step S3 comprises: S301: injecting electrophoresis liquid into the electrophoresis pool; S302: adjusting the temperature of the electrophoresis liquid to control the temperature of the electrophoresis liquid at 15-20° C.; S303: placing the tie rod in an electrophoresis bath and applying a direct current power supply to allow the tie rod to undergo electrophoresis treatment in the electrophoresis bath for 2.5-3 minutes, so that an electrophoretic paint film is formed on the surface of the tie rod.

3. The processing equipment for the production process of a luggage case pull rod according to claim 2, characterized in that: For anodizing and electrophoresis treatment of tie rods, including: A reaction cell (1) for placing an electrolyte or an electrophoresis solution; A tray assembly (2) is used to hold the pull rods to be processed or the processed pull rods, and the tray assembly (2) is slidably arranged on the reaction pool (1); A clamping assembly (3), used for clamping the pull rod; The driving mechanism (4) is used to drive the clamping assembly (3) to move, thereby driving the pull rod on the clamping assembly (3) to be immersed in the reaction pool (1) or to be moved out of the reaction pool (1).

4. The processing equipment for a luggage case pull rod according to claim 3, characterized in that: The clamping assembly (3) comprises a support plate (31) and two groups of moving assemblies (32); a first driving member (33) for controlling the two groups of moving assemblies (32) to move laterally is disposed on the support plate (31); a guiding member (34) for guiding the two groups of moving assemblies (32) is also disposed on the support plate (31); and clamping members (35) for clamping the pull rod are fixedly disposed on the two groups of moving assemblies (32).

5. The processing equipment for a luggage case pull rod according to claim 4, characterized in that: The support plate (31) is movably hinged on one side of the reaction pool (1), and the support plate (31) can rotate around a hinge between the support plate (31) and the reaction pool (1) under the action of the drive mechanism (4).

6. The processing equipment for a luggage case tie rod according to claim 5, characterized in that: The driving mechanism (4) comprises a first mounting frame (41), a second mounting frame (42) and a second driving member (43); the first mounting frame (41) is fixedly mounted on one side of the reaction pool (1); the second mounting frame (42) is fixedly arranged on the lower surface of the support plate (31); and two ends of the second driving member (43) are rotatably connected to the first mounting frame (41) and the second mounting frame (42), respectively.

7. The processing equipment for a luggage case pull rod according to claim 3, characterized in that: The tray assembly (2) comprises a support frame (21) and a support seat (22); a limiting groove (23) is provided on the support seat (22); and the pull rod is placed in the limiting groove (23) of the support seat (22).

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