Mould waterway pickling automation device

Abstract

The utility model belongs to the technical field of die waterway pickling, and particularly relates to a die waterway pickling automation device which comprises a die waterway pickling combination, a vacuum generation structure and an acid liquor recovery structure. The die waterway pickling combination comprises a die body, an acid storage tank and a vacuum acid liquor recovery tank. The vacuum generation structure is connected with the vacuum acid liquor recovery tank; the acid liquor recycling structure comprises an acid liquor recycling pipeline and an acid liquor filtering structure, the acid liquor recycling pipeline is connected between the vacuum acid liquor recycling tank and the acid storage tank, the acid liquor filtering structure is arranged in the acid storage tank, and the acid liquor recycling pipeline and the acid inlet pipeline are located on the two sides of the acid liquor filtering structure respectively. According to the utility model, the original operation principle is changed, the original extrusion force operation is changed into vacuum suction washing operation, the die waterway can be subjected to acid washing and washing, and a flowing closed-loop operation is realized, so that the damage caused by contact between acid liquor and people can be avoided, the operation safety is improved, the operation quality is ensured, and the production efficiency is improved. And the efficiency is also greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold water channel pickling, and in particular relates to an automatic device for mold water channel pickling. Background Art

[0002] Low-pressure molds are widely used in the manufacture of automotive parts such as wheels, subframes, and steering knuckles. Low-pressure molds need to be cleaned in the following situations:

[0003] During regular maintenance of low-pressure molds, if the cooling water flow rate of the mold fails to meet the set standard, the mold needs to be pickled.

[0004] During low-pressure on-site production, an alarm is triggered when the mold cooling water flow rate suddenly decreases, causing the equipment to shut down. At this time, the mold needs to be disassembled and returned to the mold preservation area for pickling of the mold cooling water pipe.

[0005] In the past, operators had to manually squeeze the acid into the water channel of the mold. Manual pickling often resulted in the following problems:

[0006] Safety issues: Hydrochloric acid is prone to splashing during operation, posing a huge safety hazard.

[0007] Environmental issues: The outflow of hydrochloric acid during manual operations affects the environment and causes corrosion damage to other equipment.

[0008] Quality issues: The existing operating methods result in incomplete acidification, affecting the quality of the operation.

[0009] Efficiency issues: long repair time and low efficiency.

[0010] Cost issue: The operation increases labor cost and time cost.

[0011] In order to solve the problems of the above-mentioned operation method, a mold water channel pickling automation device is designed, which has important practical significance. Utility Model Content

[0012] In order to solve the above problems in the prior art, the utility model provides a mold water channel pickling automation device.

[0013] The technical solution adopted by the utility model to solve this problem is:

[0014] A mold waterway pickling automation device is used for pickling a mold, wherein the mold comprises a mold body, an acid inlet, and an acid outlet. The mold waterway pickling automation device comprises:

[0015] A mold waterway pickling assembly, comprising a mold body, an acid storage tank connected to an acid inlet of the mold body through an acid inlet pipeline, and a vacuum acid liquid recovery tank connected to an acid outlet of the mold body through an acid outlet pipeline;

[0016] A vacuum generating structure connected to a vacuum acid recovery tank;

[0017] The acid recovery structure comprises an acid recovery pipeline and an acid filtration structure, wherein the acid recovery pipeline is connected between a vacuum acid recovery tank and an acid storage tank, the acid filtration structure is arranged in the acid storage tank, and the acid recovery pipeline and the acid inlet pipeline are respectively located on both sides of the acid filtration structure.

[0018] In the above technical scheme, the mold water channel pickling automation device also includes a pickling operation vehicle, which is divided into an upper and lower layer. The upper layer of the pickling operation vehicle is provided with a vacuum acid liquid recovery tank, an oil-water separator, a vacuum generating structure and a mold placement position, and the lower layer of the pickling operation vehicle is provided with an acid storage tank.

[0019] In the above technical solution, a clean water tank is also provided on the lower layer of the pickling operation vehicle.

[0020] In the above technical solution, the vacuum acid liquid recovery tank is a tank structure with a hollow interior, a top joint is arranged on the top wall of the vacuum acid liquid recovery tank, a side wall joint is arranged on the upper part of the side wall, and a bottom joint is arranged on the bottom wall.

[0021] In the above technical solution, the vacuum generating structure includes a vacuum generator, one path of the vacuum generator is connected to the first gas source pipeline, one path is connected to the vacuum acid recovery tank through the second gas source pipeline, and one path is connected to the muffler.

[0022] In the above technical solution, a pressure regulating valve and an air inlet valve are provided on the first gas source pipeline, an oil-water separator is provided on the second gas source pipeline, and the second gas source pipeline is connected to the vacuum acid liquid recovery tank through a top joint.

[0023] In the above technical solution, one end of the acid recovery pipeline is connected to the vacuum acid recovery tank through a bottom joint, and the other end extends into the acid storage tank. An acid recovery valve is provided on the acid recovery pipeline.

[0024] In the above technical solution, one end of the acid inlet pipeline is connected to the acid inlet of the mold body, and the other end extends into the acid storage tank. A residual acid discharge valve is provided on the acid inlet pipeline.

[0025] In the above technical solution, one end of the acid outlet pipeline is connected to the acid outlet of the mold body, and the other end extends into the vacuum acid liquid recovery tank through the side wall joint.

[0026] In the above technical solution, the acid liquid filtering structure includes a filter box mounted in an acid storage tank and filter cotton filled in the filter box, the filter box is evenly distributed with filter holes, the filter box is penetrated by a through hole for the acid inlet pipeline to pass through, the filter box is mounted in the acid storage tank through a connecting structure, and the acid storage tank is divided into a chamber to be filtered and a filtered chamber by the filter box.

[0027] The advantages and positive effects of the utility model are as follows: the utility model utilizes compressed air and a vacuum generating structure to generate negative pressure, and brings the acid in the acid storage tank into the mold water channel, flushes the water channel, thereby removing scale and rust in the water channel, and the acid after pickling enters the vacuum acid recovery tank for recovery. After the pickling is completed, the acid in the vacuum acid recovery tank flows back to the acid storage tank, is filtered by the acid filtering structure, and then enters the mold water channel again for the next pickling, thereby realizing a flow closed-loop operation, which can not only prevent the damage caused by the contact between the acid and people, but also improve the safety of the operation, and the operation quality is guaranteed, and the efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The technical solution of the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments, but it should be understood that these drawings are designed only for the purpose of explanation and are not intended to limit the scope of the utility model. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structural configurations described herein and are not necessarily drawn to scale.

[0029] Figure 1 It is the principle diagram of the utility model;

[0030] Figure 2 It is a structural diagram of the utility model.

[0031] In the figure: 1-compressed air interface; 2-pressure regulating valve; 3-inlet valve; 4-muffler; 5-acid inlet connector; 6-acid discharge connector; 7-oil-water separator; 8-residual acid discharge valve; 9-vacuum acid recovery tank; 10-acid recovery valve; 11-acid storage tank; 12-clean water tank; 13-mold body; 14-acid inlet pipeline; 15-acid outlet pipeline; 16-acid recovery pipeline; 17-pickling operation vehicle; 18-filter cotton; 19-vacuum generator; 20-first air source pipeline; 21-second air source pipeline. DETAILED DESCRIPTION

[0032] First of all, it should be noted that the specific structure, features and advantages of the present invention will be specifically described below by way of example, but all descriptions are only for illustration and should not be understood as limiting the present invention in any way. In addition, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature displayed or implied in the drawings, can still be combined or deleted between these technical features (or their equivalents) to obtain more other embodiments of the present invention that may not be directly mentioned in this document. In addition, in order to simplify the drawings, the same or similar technical features may be marked in only one place in the same drawing.

[0033] In the present utility model, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", "fixation", "screwing" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. The present utility model is described in detail below in conjunction with the accompanying drawings.

[0034] Example:

[0035] A mold waterway pickling automation device is used for pickling the mold, the mold comprises a mold body, an acid inlet, and an acid outlet, the acid inlet is provided with an acid inlet connector 5, the acid outlet is provided with an acid outlet connector 6, the connector preferably adopts a quick-connect connector, the mold waterway pickling automation device comprises:

[0036] A mold water pickling assembly, which includes a mold body 13, an acid storage tank 11 connected to the acid inlet of the mold body 13 through an acid inlet pipeline 14, and a vacuum acid liquid recovery tank 9 connected to the acid outlet of the mold body 13 through an acid outlet pipeline 15;

[0037] A vacuum generating structure connected to the vacuum acid recovery tank 9;

[0038] The acid recovery structure includes an acid recovery pipeline 16 and an acid filtering structure. The acid recovery pipeline 16 is connected between the vacuum acid recovery tank 9 and the acid storage tank 11. The acid filtering structure is arranged in the acid storage tank 11. The acid recovery pipeline 16 and the acid inlet pipeline 14 are respectively located on both sides of the acid filtering structure.

[0039] In this embodiment, compressed air and a vacuum generating structure are used to generate negative pressure, and the acid in the acid storage tank 11 is brought into the mold water channel through the acid inlet pipeline 14 to flush the water channel, thereby removing scale and rust in the water channel. Under negative pressure, the acid after pickling enters the vacuum acid recovery tank 9 through the acid outlet pipeline 15. After the pickling is completed, the negative pressure is stopped, and the mold is discharged. The acid in the vacuum acid recovery tank 9 flows back to the acid storage tank 11 through the acid recovery pipeline 16, and after being filtered by the acid filtering structure, it enters the mold water channel again for the next pickling. The pickling device is made using limited resources and raw materials on site to realize a flow closed-loop operation, which can not only prevent the damage caused by the contact between the acid and people, but also improve the safety of the operation, and the operation quality is guaranteed, and the efficiency is greatly improved.

[0040] Furthermore, it can also be considered in this embodiment that it also includes a pickling operation vehicle 17, and the pickling operation vehicle 17 is divided into an upper and lower layer. The upper layer of the pickling operation vehicle 17 is provided with a vacuum acid liquid recovery tank 9, an oil-water separator 7, a vacuum generating structure and a mold placement position, and the lower layer of the pickling operation vehicle 17 is provided with an acid storage tank 11. The pickling operation vehicle adopts a movable and lockable operation vehicle with an upper and lower double-layer table. The mold water pickling automation device is integrated on the operation vehicle, which occupies a small space and is easy to move. It can be used and taken at any time during the low-pressure on-site production process, and is easy to operate.

[0041] Furthermore, in this embodiment, it can also be considered that the lower layer of the pickling operation vehicle 17 is also provided with a clean water tank 12, and when clean water flushing is required, the acid storage tank 11 can be replaced by the clean water tank 12.

[0042] Furthermore, in this embodiment, it can also be considered that the vacuum acid liquid recovery tank 9 is a tank structure with a hollow interior, a top joint is provided on the top wall of the vacuum acid liquid recovery tank 9, a side wall joint is provided on the upper part of the side wall, and a bottom joint is provided on the bottom wall.

[0043] Furthermore, in the present embodiment, it can also be considered that the vacuum generating structure includes a vacuum generator 19, one of which is a compressed air interface 1, which is connected to the first air source pipeline 20, one is a vacuum interface, which is connected to the vacuum acid liquid recovery tank 9 through the second air source pipeline 21, and another is connected to the muffler 4 to play a silencing role. The compressed air interface 1 of the vacuum generator 19 is connected to the compressed air source through the first air source pipeline 20, and the vacuum generator 19 adopts the principle of high-speed jet sucking away the gas in the negative pressure chamber to form a negative pressure, so that a negative pressure is formed in the vacuum acid liquid recovery tank 9 connected to the second air source pipeline 21.

[0044] Furthermore, in this embodiment, it can also be considered that the first gas source pipeline 20 is provided with a pressure regulating valve 2 and an air intake valve 3 .

[0045] Furthermore, in this embodiment, it can also be considered that an oil-water separator 7 is provided on the second gas source pipeline 21, and the second gas source pipeline 21 is connected to the vacuum acid liquid recovery tank 9 through a top joint. The oil-water separator 7 is a commercially available product, and the specific structure is not repeated here.

[0046] Furthermore, in this embodiment, it can also be considered that one end of the acid recovery pipeline 16 is connected to the vacuum acid recovery tank 9 through a bottom joint, and the other end extends into the acid storage tank 11. An acid recovery valve 10 is provided on the acid recovery pipeline 16. During the mold pickling process, the acid recovery valve 10 is in a closed state.

[0047] Furthermore, it can also be considered in this embodiment that one end of the acid inlet pipeline 14 is connected to the acid inlet of the mold body 13, and the other end extends into the acid storage tank 11, and the acid inlet pipeline 14 is connected to the residual acid discharge pipeline with the residual acid discharge valve 8 through a three-way joint. During the pickling process, the residual acid discharge valve 8 is in a closed state, and the acid in the acid storage tank 11 enters the mold waterway through the acid inlet pipeline 14 under negative pressure suction; when the residual acid is discharged at the end of pickling, the residual acid discharge valve 8 is in an open state, and the residual acid discharge valve 8 is connected to the outside atmosphere, and air enters the mold waterway through the residual acid discharge valve 8 and the upper half of the acid inlet pipeline 14, which plays a role in residual acid discharge.

[0048] Furthermore, in this embodiment, it can also be considered that one end of the acid outlet pipeline 15 is connected to the acid outlet of the mold body 13, and the other end extends into the vacuum acid liquid recovery tank 9 through the side wall joint.

[0049] Furthermore, in this embodiment, it can also be considered that the acid liquid filtering structure includes a filter box mounted in the acid storage tank 11 and filter cotton 18 filled in the filter box, the filter box is evenly distributed with filter holes, and the filter box is penetrated by a through hole for the acid inlet pipeline to pass through. The acid liquid filtering structure filters the acid liquid recovered from the vacuum acid liquid recovery tank for reuse.

[0050] Furthermore, in this embodiment, it can be considered that the filter box is clamped in the acid storage tank through a connection structure, and the connection method of the connection structure can be but not limited to clamping or threading. The acid storage tank is divided into a to-be-filtered chamber and a filtered chamber by the filter box, the lowest end of the acid recovery pipeline is located in the to-be-filtered chamber above the acid filter structure, and the lowest end of the acid inlet pipeline is located in the filtered chamber below the acid filter structure.

[0051] The steps for the mold waterway pickling automation device to pickle the mold are as follows:

[0052] S1, connecting the acid inlet connector 5, the acid outlet connector 6 and the mold body 13 at corresponding positions;

[0053] S2, connect the air source, open the air inlet valve 3, after negative pressure is generated, confirm that the acid liquid enters the mold and is discharged;

[0054] S3, continue pickling for more than 5 minutes (the time can be extended according to actual conditions), and open the residual acid discharge valve 8;

[0055] S4. After confirming that all the acid liquid has been drained, close the residual acid discharge valve 8 and the air inlet valve 3 at the same time;

[0056] S5, open the acid recovery valve 10, confirm that the acid in the vacuum acid recovery tank 9 has all flowed into the acid storage tank 11, and close the valve;

[0057] S6, disassemble the acid inlet joint 5 and the acid outlet joint 6, carry out the next set of water channel pickling, and repeat the above steps S1-S5;

[0058] S7. After all water lines are pickled, return the joints to their original positions and remove the gas source.

[0059] The mold waterway pickling automation device in this embodiment changes the original operating principle, changing the original extrusion force operation to the current vacuum suction flushing operation, completely eliminating the problems that often exist in manual pickling, such as splashing. This device uses waste raw materials in production, specifically: it requires three or four valves, a negative pressure generator, an oil-water separator, an acid recovery tank, a muffler, a quick connector, and several meters of hose. By using existing materials, the mold waterway pickling automation device is designed and manufactured, so that the mold waterway pickling operation is automated, the safety of the operation is improved, the quality of the operation is guaranteed, and the efficiency is greatly improved.

[0060] In terms of safety and environment: it avoids the possibility of workers coming into contact with acid, improving workplace safety. The acid is fully recycled, avoiding environmental damage.

[0061] In terms of quality: Acid liquid thoroughly flushes the mold cooling water pipes, greatly improving the work quality.

[0062] In terms of efficiency: working hours reduction = 36.02H / month.

[0063] In terms of cost: after the device is applied, on the one hand, the defective rate of products is reduced, and on the other hand, the cost of purchasing equipment is avoided, with a total cost saving of 4,566 yuan / month.

[0064] Promotion situation: The production of the mold water pickling automation device is very innovative. The operation is changed from manual operation to semi-automatic operation, which reflects the employees' innovative wisdom and enthusiasm for improvement. The improvers have promoted the use of the device and improvement techniques to all employees.

[0065] The above embodiments describe the present invention in detail, but the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of application of the present invention shall still fall within the scope of the patent coverage of the present invention.

Claims

1. A mold waterway pickling automation device, used for pickling a mold, the mold comprising a mold body and an acid inlet and an acid outlet, characterized in that: The mold waterway pickling automation device includes: A mold waterway pickling assembly, comprising a mold body, an acid storage tank connected to an acid inlet of the mold body through an acid inlet pipeline, and a vacuum acid liquid recovery tank connected to an acid outlet of the mold body through an acid outlet pipeline; A vacuum generating structure connected to a vacuum acid recovery tank; The acid recovery structure comprises an acid recovery pipeline and an acid filtration structure, wherein the acid recovery pipeline is connected between a vacuum acid recovery tank and an acid storage tank, the acid filtration structure is arranged in the acid storage tank, and the acid recovery pipeline and the acid inlet pipeline are respectively located on both sides of the acid filtration structure.

2. The mold waterway pickling automation device according to claim 1, characterized in that: It also includes a pickling operation vehicle, which is divided into an upper and lower layer. The upper layer of the pickling operation vehicle is provided with a vacuum acid recovery tank, an oil-water separator, a vacuum generating structure and a mold placement position, and the lower layer of the pickling operation vehicle is provided with an acid storage tank.

3. The mold waterway pickling automation device according to claim 2 is characterized by: The lower layer of the pickling operation vehicle is also provided with a clean water tank.

4. The mold waterway pickling automation device according to claim 1, characterized in that: The vacuum acid liquid recovery tank is a tank structure with a hollow interior. A top joint is arranged on the top wall of the vacuum acid liquid recovery tank, a side wall joint is arranged on the upper part of the side wall, and a bottom joint is arranged on the bottom wall.

5. The mold waterway pickling automation device according to claim 4, characterized in that: The vacuum generating structure comprises a vacuum generator, one path of the vacuum generator is connected to a first gas source pipeline, one path is connected to a vacuum acid liquid recovery tank through a second gas source pipeline, and one path is connected to a muffler.

6. The mold waterway pickling automation device according to claim 5, characterized in that: The first gas source pipeline is provided with a pressure regulating valve and an air inlet valve, the second gas source pipeline is provided with an oil-water separator, and the second gas source pipeline is connected to the vacuum acid liquid recovery tank through a top joint.

7. The mold waterway pickling automation device according to claim 4, characterized in that: One end of the acid recovery pipeline is connected to the vacuum acid recovery tank through a bottom joint, and the other end extends into the acid storage tank. An acid recovery valve is arranged on the acid recovery pipeline.

8. The mold waterway pickling automation device according to claim 4, characterized in that: One end of the acid inlet pipeline is connected to the acid inlet of the mold body, and the other end extends into the acid storage tank. A residual acid discharge valve is arranged on the acid inlet pipeline.

9. The mold waterway pickling automation device according to claim 4, characterized in that: One end of the acid outlet pipeline is connected to the acid outlet of the mold body, and the other end extends into the vacuum acid liquid recovery tank through a side wall joint.

10. The mold waterway pickling automation device according to claim 1, characterized in that: The acid liquid filtering structure comprises a filter box mounted in an acid storage tank and filter cotton filled in the filter box. The filter box is evenly distributed with filter holes, and a through hole is penetrated through the filter box for the acid inlet pipeline to pass through.

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