Filter mesh taking and placing device in low-pressure casting industry

Abstract

The utility model discloses a low-pressure casting industry filter mesh pick-and-place device which comprises a vacuum tube, the outer wall of the bottom end of the vacuum tube is connected with a vacuum generator, the outer wall of the vacuum generator is connected with a quick connector, the bottom end of the vacuum generator is detachably and fixedly connected with a pick-up air nozzle, and the pick-up air nozzle is used for adsorbing a filter mesh. Relates to the technical field of filter screen piece taking and placing devices, a vacuum generator is directly arranged above a filter screen piece, and the length of a vacuum cavity is shortened, so that the adsorption strength is higher, the risk that the filter screen piece falls off is avoided to a certain extent, and the adsorption stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter mesh taking and placing devices, in particular to a filter mesh taking and placing device in the low-pressure casting industry. Background Art

[0002] During the low-pressure casting of aluminum alloy, impurities such as oxides and sand holes will exist in the aluminum liquid. The impurities are filtered out through a glass fiber filter. Filtration is a very important process in low-pressure casting. As a part of the post-processing of die-casting, if the filtration is not in place, a large number of abnormal parts will be scrapped and the filter mesh needs to be replaced. The filter mesh is generally picked up and placed by a negative pressure vacuum pump. A negative pressure is formed inside the filter mesh picking device to pick up the filter mesh. Since the vacuum occurs at the input end of the vacuum pump, the vacuum pump is far away from the filter mesh. In the process of picking up the filter mesh, it is easy to have poor adsorption, resulting in the risk of the filter mesh falling off during the entire process of moving the adsorbed filter mesh. The stability is poor, and it is inconvenient to shorten the stroke of the vacuum pipe, resulting in insufficient adsorption force and inconvenient use. Utility Model Content

[0003] The purpose of the utility model is to provide a filter mesh taking and placing device for the low-pressure casting industry to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A filter mesh picking and placing device for the low-pressure casting industry comprises a vacuum tube, the outer wall of the bottom end of the vacuum tube is connected to a vacuum generator, the outer wall of the vacuum generator is connected to a quick-connect connector, the bottom end of the vacuum generator is detachably fixedly connected to a pickup air nozzle, and the pickup air nozzle is used to adsorb the filter mesh.

[0006] In a preferred embodiment of the present utility model, it comprises a base, the bottom of the base is connected to the first guide seat via a spring, and the bottom of the first guide seat is connected to the second guide seat via a first guide shaft.

[0007] In a preferred embodiment of the present utility model, the bottom of the first guide seat is connected to the vacuum tube via a second guide shaft, and the outer wall of the second guide shaft passes through the inner wall of the second guide seat and extends to the bottom of the second guide seat.

[0008] In a preferred embodiment of the present invention, the connection between the second guide shaft and the inner wall of the second guide seat is rotatable, and the plurality of first guide shafts are engaged with each other through a clamping seat.

[0009] In a preferred embodiment of the present invention, the inner wall of the holder is fixed to the first guide shaft by bolts, the center of the holder is a hollow structure, and the vacuum tube passes through the interior of the holder.

[0010] In a preferred embodiment of the present utility model, a quick-connect connector is fixedly installed on the outer wall of the vacuum generator, and the quick-connect connector is used for matching and plugging connection with a high-pressure air pump.

[0011] In a preferred embodiment of the utility model, an exhaust nozzle base is fixedly installed on the outer wall of the vacuum tube, driving an exhaust nozzle to be fixedly installed on the outer wall of the exhaust nozzle base, and the exhaust nozzle is used to exhaust the airflow in the vacuum generator.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0013] By arranging the vacuum generator directly above the filter, the length of the vacuum chamber is shortened, thereby making the adsorption force stronger, avoiding the risk of the filter falling to a certain extent, and improving the stability of adsorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 It is a schematic diagram of the main structure of a filter mesh taking and placing device in the low-pressure casting industry;

[0016] Figure 2 It is a side view structural diagram of a filter mesh taking and placing device in the low-pressure casting industry;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of a filter mesh taking and placing device in the low-pressure casting industry.

[0018] In the figure: base 1, first guide seat 2, spring 3, first guide shaft 4, second guide shaft 5, second guide seat 6, holder 7, center tube 8, vacuum tube 9, quick connector 10, vacuum generator 11, pick-up air nozzle 12, clamp 13, exhaust nozzle base 14, exhaust nozzle 15, filter mesh 16. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] Example 1: Figure 1-3 , including a vacuum tube 9, the outer wall of the bottom end of the vacuum tube 9 is connected to a vacuum generator 11, the outer wall of the vacuum generator 11 is connected to a quick-connect connector 10, the bottom end of the vacuum generator 11 is detachably fixedly connected to a pickup air nozzle 12, and the pickup air nozzle 12 is used to adsorb the filter mesh 16,

[0021] The specific usage scenario of this embodiment is: by setting a quick-plug connector 10 for connecting a high-pressure air pump, airflow is provided to the vacuum generator 11, thereby forming a negative pressure inside the vacuum generator 11, thereby improving the strength of picking up the filter mesh 16. By setting the vacuum generator 11 directly above the filter mesh 16, the length of the positive cavity is shortened, thereby making the adsorption force stronger, avoiding the risk of the filter mesh 16 used in the low-pressure casting industry falling off to a certain extent, and improving the stability of adsorption.

[0022] Example 2: Figure 1-3 , including a base 1, the bottom of the base 1 is connected to the first guide seat 2 through a spring 3, the bottom of the first guide seat 2 is connected to the second guide seat 6 through a first guide shaft 4, the bottom of the first guide seat 2 is connected to the vacuum tube 9 through a second guide shaft 5, the outer wall of the second guide shaft 5 passes through the inner wall of the second guide seat 6 and extends to the bottom of the second guide seat 6, the connection between the second guide shaft 5 and the inner wall of the second guide seat 6 is rotatable, multiple first guide shafts 4 are matched and connected through a card seat 7, the inner wall of the card seat 7 and the first guide shaft 4 are fixed by bolts, the center position of the card seat 7 is a hollow structure, and the vacuum tube 9 passes through the inside of the card seat 7.

[0023] The specific usage scenario of this embodiment is as follows: by setting a holder 7 for positioning the first guide shaft 4, it is convenient to adjust the position of the first guide shaft 4 in a small range, and by setting a spring 3 for forming a buffer force between the base 1 and the first guide seat 2, it is prevented that the bottom end of the first guide seat 2 is impacted and causes damage to the equipment, thereby improving the protection of the equipment. A damping buffer structure is arranged inside the spring 3 for absorbing energy during impact.

[0024] Example 3: Figure 3 A quick-connect connector 10 is fixedly installed on the outer wall of the vacuum generator 11, and the quick-connect connector 10 is used to cooperate with the plug-in connection to the high-pressure air pump. An exhaust nozzle base 14 is fixedly installed on the outer wall of the vacuum tube 9, which drives an exhaust nozzle 15 to be fixedly installed on the outer wall of the exhaust nozzle base 14. The exhaust nozzle 15 is used to discharge the airflow in the vacuum generator 11.

[0025] The specific usage scenario of this embodiment is: a high-pressure air pump is provided to provide a positive pressure airflow to the vacuum generator 11. The vacuum generator 11 is composed of a Laval nozzle that contracts first and then expands, a negative pressure chamber and a receiving tube, etc., and has an air supply port, an exhaust port and a vacuum port. When the supply pressure of the air supply port is higher than a certain value, the nozzle ejects a supersonic jet. Due to the viscosity of the gas, the high-speed jet sucks away the gas in the negative pressure chamber, causing the chamber to form a very low vacuum degree. A vacuum suction cup is connected to the vacuum port, and the filter mesh 16 can be sucked up by the vacuum pressure.

[0026] The working principle of the utility model is as follows: when in use, a person skilled in the art fixes the base 1 with the mechanical arm by bolts, moves the device by controlling the mechanical arm, docks the output end of the high-pressure air pump (marked in the figure) with the quick-connect connector 10, and turns on the high-pressure air pump to provide positive pressure airflow to the quick-connect connector 10 on the outer wall of the vacuum generator 11. The positive pressure airflow passes through the Laval nozzle inside the vacuum generator 11, then enters the receiving tube, and then discharges the airflow through the exhaust nozzle 15 in the exhaust nozzle base 14. In this process, a negative pressure is formed in the negative pressure cavity in the vacuum generator 11. When the air supply pressure of the air supply port is higher than a certain value, the nozzle ejects a supersonic jet. Due to the viscosity of the gas, the high-speed jet sucks away the gas in the negative pressure cavity, so that the cavity forms a very low vacuum degree. A vacuum suction cup is connected to the vacuum port, and the filter mesh 16 can be sucked up by the vacuum pressure, thereby completing the picking up of the filter mesh 16. Then, the robot arm is driven to control the movement to the installation location of the low-pressure casting high-temperature aluminum liquid filter to install the filter mesh 16 or pick up and replace the filter mesh 16.

[0027] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A filter mesh taking and placing device for low-pressure casting industry, comprising a vacuum tube (9), characterized in that: The outer wall of the bottom end of the vacuum tube (9) is connected to a vacuum generator (11), the outer wall of the vacuum generator (11) is connected to a quick-connect connector (10), and the bottom end of the vacuum generator (11) is detachably fixedly connected to a pickup air nozzle (12), and the pickup air nozzle (12) is used to adsorb the filter mesh (16).

2. The filter mesh taking and placing device for low-pressure casting industry according to claim 1 is characterized in that: It comprises a base (1), the bottom of the base (1) is connected to a first guide seat (2) via a spring (3), and the bottom of the first guide seat (2) is connected to a second guide seat (6) via a first guide shaft (4).

3. The filter mesh taking and placing device for low-pressure casting industry according to claim 2 is characterized in that: The bottom of the first guide seat (2) is connected to the vacuum tube (9) via the second guide shaft (5), and the outer wall of the second guide shaft (5) passes through the inner wall of the second guide seat (6) and extends to the bottom of the second guide seat (6).

4. The filter mesh taking and placing device for low-pressure casting industry according to claim 3 is characterized in that: The connection between the second guide shaft (5) and the inner wall of the second guide seat (6) is rotatable, and the plurality of first guide shafts (4) are engaged and connected via a clamping seat (7).

5. The filter mesh taking and placing device for low-pressure casting industry according to claim 4 is characterized in that: The inner wall of the holder (7) and the first guide shaft (4) are fixed by bolts, the center of the holder (7) is a hollow structure, and the vacuum tube (9) passes through the inside of the holder (7).

6. The filter mesh taking and placing device for low-pressure casting industry according to claim 1 is characterized in that: A quick-connect connector (10) is fixedly mounted on the outer wall of the vacuum generator (11), and the quick-connect connector (10) is used for cooperating with and plugging into a high-pressure air pump.

7. The filter mesh taking and placing device for low-pressure casting industry according to claim 6 is characterized in that: An exhaust nozzle base (14) is fixedly mounted on the outer wall of the vacuum tube (9), driving an exhaust nozzle (15) to be fixedly mounted on the outer wall of the exhaust nozzle base (14); the exhaust nozzle (15) is used to exhaust the airflow in the vacuum generator (11).

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