Exhaust hole cleaning and blowing device

Abstract

The utility model relates to the technical field of casting exhaust hole cleaning and blowing, in particular to an exhaust hole cleaning and blowing device which comprises a supporting frame, a transverse moving cleaning and blowing unit and a longitudinal moving cleaning and blowing unit. The transverse moving cleaning and blowing unit comprises a transverse moving mechanism and a first cleaning and blowing assembly, and the first cleaning and blowing assembly is installed on the bottom side of the supporting frame through the transverse moving mechanism and can move in the transverse direction of the supporting frame; the longitudinal moving cleaning and blowing unit comprises a longitudinal moving mechanism and a second cleaning and blowing assembly, and the second cleaning and blowing assembly is installed on the front side of the supporting frame through the longitudinal moving mechanism and can move in the longitudinal direction of the supporting frame. According to the cleaning and blowing device, the rapid production takt is met, the cleaning and blowing requirements of exhaust holes with different intervals are met, and the problems of interference and sand mold damage are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of casting exhaust hole cleaning, in particular to an exhaust hole cleaning device. Background Art

[0002] In the casting field, the sand mold is a key component for manufacturing castings, and the design of the exhaust holes inside it is crucial for ensuring the quality of the castings. The exhaust cleaning device is used for cleaning the exhaust holes to blow away the scattered sand in the air holes.

[0003] Currently, the common exhaust cleaning devices are mostly single-gun type. The exhaust holes are cleaned by driving the cleaning unit to move through a robot. Although this device can complete the basic cleaning task, its efficiency is limited by the single-gun design and cannot meet the requirements of fast production beats. In addition, there are some cleaning devices with multiple cleaning units, but the positions of the cleaning units are fixed. When the distances between the air holes to be cleaned are different, this cleaning device cannot be used. Moreover, when the number of air holes to be cleaned in a single row is less than the number of cleaning units, it will cause interference between some cleaning units and the sand mold, resulting in the inability to clean or damage to the sand mold. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the embodiments of the present utility model is to provide an exhaust hole cleaning device to meet the requirements of fast production beats, adapt to the cleaning needs of exhaust holes with different distances, and avoid interference and sand mold damage problems.

[0005] To achieve the above purpose, the embodiments of the present utility model provide the following technical solutions:

[0006] An exhaust hole cleaning device, comprising: a support frame, a transverse moving cleaning unit, and a longitudinal moving cleaning unit; the transverse moving cleaning unit includes a transverse moving mechanism and a first cleaning component, and the first cleaning component is installed on the bottom side of the support frame through the transverse moving mechanism and can move horizontally along the support frame; the longitudinal moving cleaning unit includes a longitudinal moving mechanism and a second cleaning component, and the second cleaning component is installed on the front side of the support frame through the longitudinal moving mechanism and can move longitudinally along the support frame.

[0007] Optionally, there is one group of the longitudinal moving cleaning units, which is arranged in the middle of the transverse direction of the support frame, and there are two groups of the transverse moving cleaning units, and the two groups of transverse moving cleaning units are respectively arranged on both sides of the longitudinal moving cleaning unit in the transverse direction.

[0008] Optionally, the transverse moving mechanism is an embedded screw slide, including a body and a slide, the slide can move along the body, the body is installed on the bottom side of the support frame, and the first cleaning component is installed on the bottom side of the slide.

[0009] Optionally, the transverse cleaning and blowing unit further includes a transverse frame, which is installed on the bottom side of the slide of the transverse moving mechanism, and the first cleaning and blowing assembly is installed on the front side of the transverse frame.

[0010] Optionally, the transverse cleaning and blowing unit further includes a drag chain, one end of which is installed on the support frame and the other end is installed on the transverse frame.

[0011] Optionally, the transverse cleaning and blowing unit further includes a servo motor, which is installed at the end of the top side of the support frame and is used to drive the slide of the transverse moving mechanism to move.

[0012] Optionally, the longitudinal moving mechanism is a slide cylinder, which includes a cylinder and an L-shaped slide. The cylinder is installed on the support frame, the L-shaped slide is connected to the piston rod of the cylinder, and the second cleaning and blowing assembly is installed on the L-shaped slide.

[0013] Optionally, the longitudinal cleaning and blowing unit further includes a mounting frame and a longitudinal moving plate. The mounting frame is installed on the front side of the support frame, the cylinder is installed on the mounting frame, the longitudinal moving plate is installed on the L-shaped slide, and the second cleaning and blowing assembly is installed on the longitudinal moving plate.

[0014] Optionally, the longitudinal cleaning and blowing unit further includes a slide valve group, which is connected to the cylinder through an air pipe and is used to control the lifting of the L-shaped slide.

[0015] Optionally, the first cleaning and blowing assembly and the second cleaning and blowing assembly have the same structure, and both include a fixed seat and a blowing pipe. The fixed seat is installed on the transverse moving mechanism or the longitudinal moving mechanism, and the blowing pipe is installed on the fixed seat.

[0016] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0017] The cooperation of the transverse cleaning and blowing unit and the longitudinal cleaning and blowing unit can meet the cleaning task of multiple holes, improve the cleaning efficiency, and meet the production beat requirements. The transverse cleaning and blowing unit realizes the transverse movement of the cleaning and blowing assembly while being longitudinally fixed, and the longitudinal cleaning and blowing unit realizes the longitudinal movement of the cleaning and blowing assembly while being transversely fixed. Through the coordinated work of the transverse cleaning and blowing unit and the longitudinal cleaning and blowing unit, the cleaning device can not only flexibly adapt to sand mold products with different pore spacings, but also avoid the interference problem of the cleaning and blowing assembly, thereby reducing the risk of sand mold damage.

[0018] The advantages of the additional aspects of the present invention will be given in the following description, and some will become obvious from the following description, or will be understood through the practice of the present invention. Description of the Drawings

[0019] The accompanying drawings of the specification, which form a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model.

[0020] Figure 1 is the top view of the air blowing device provided by the embodiment of the present utility model;

[0021] Figure 2 is the perspective view of the air blowing device provided by the embodiment of the present utility model;

[0022] Figure 3 is the front view of the air blowing device provided by the embodiment of the present utility model;

[0023] Figure 4 is the side view of the air blowing device provided by the embodiment of the present utility model;

[0024] In the figure: 1, support frame; 2, transverse moving air blowing unit; 21, transverse moving frame; 22, fixed seat; 23, air blowing pipe; 24, drag chain; 25, transverse moving mechanism; 26, servo motor; 27, air blowing valve group; 3, longitudinal moving air blowing unit; 31, mounting frame; 32, longitudinal moving mechanism; 33, longitudinal moving plate; 34, slide valve group; 4, mounting plate;

[0025] The distances or sizes between each part are exaggerated for showing the positions of each part, and the schematic diagram is only for illustration. Detailed implementation manners

[0026] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanations of the present utility model. Unless otherwise specified, all technical and scientific terms used in the present utility model have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, units, and / or combinations thereof.

[0027] Term explanations:

[0028] Sand mold: A kind of mold filler that forms a certain geometric shape and thus forms a casting cavity, which is made of sand meeting certain requirements and resin through certain processes, and is placed in an iron container to form a sand mold.

[0029] Vent hole: There are vent holes in the sand inside the sand mold, which are used for the overflow of gas during pouring.

[0030] The molding line produces a wide variety of products. The number of exhaust holes in the sand mold is large (up to 96 at most), and their position distribution is uneven. Moreover, the production beat is fast (60 s / box). Manual blowing with an air duct cannot meet the requirements of the beat and quality, resulting in many molding defects in the castings. Since the existing exhaust hole blowing device has only one blowing pipe, it can only blow one exhaust hole each time, and it takes 1.5 s for each blowing. Therefore, at most 40 exhaust holes can be blown within the production beat (60 s), which does not meet the beat requirements of the molding line. If a single-gun blowing device is adopted, only manual blowing workstations can be added at the subsequent workstations. This can only reduce the labor intensity of the workers and cannot completely save one workstation. The impacts are as follows: 1. Manual blowing is unstable and labor-intensive. As production continues, the blowing effect gradually deteriorates, resulting in defective products in the castings; 2. Prolonging the blowing beat makes blowing become the bottleneck process of the molding line, restricting production.

[0031] Therefore, the single-gun device has a slow blowing speed and cannot complete the blowing work of a large number of exhaust holes within the limited production beat. The multi-gun device cannot meet the blowing requirements of exhaust holes with different spacings, lacks flexibility, and is prone to interference or damage to the sand mold.

[0032] To solve the above technical problems, an exhaust hole blowing device is proposed in this embodiment, as Figure 1 shown, which includes: a support frame 1, a transverse movement blowing unit 2, and a longitudinal movement blowing unit 3. As Figure 2 、 Figure 3 shown, the transverse movement blowing unit 2 includes a transverse movement mechanism 25 and a first blowing assembly. The first blowing assembly is installed on the bottom side of the support frame 1 through the transverse movement mechanism 25 and can move horizontally along the support frame 1; the longitudinal movement blowing unit 3 includes a longitudinal movement mechanism 32 and a second blowing assembly. The second blowing assembly is installed on the front side of the support frame 1 through the longitudinal movement mechanism 32 and can move longitudinally along the support frame 1.

[0033] The support frame 1, as the basic support structure of the blowing device, has sufficient strength and rigidity to stably support the transverse movement blowing unit 2 and the longitudinal movement blowing unit 3. The design of the support frame 1 enables the blowing device to operate stably in the production environment and withstand the forces generated during the blowing process. An installation plate 4 is provided at the rear side of the blowing device, and the blowing device is installed on the robot through the installation plate 4.

[0034] The cooperation of the transverse air-blowing unit 2 and the longitudinal air-blowing unit 3 can meet the air-blowing tasks for multiple pores, improve the air-blowing efficiency, and meet the production rhythm requirements. By driving the first air-blowing assembly to move transversely along the support frame 1 through the transverse moving mechanism 25, the distance between the air-blowing assemblies can be adjusted to match the pore spacing of the sand mold, thereby completing the air-blowing task. When the number of pores to be air-blown is less than the number of air-blowing units, the longitudinal moving mechanism 32 can drive the second air-blowing assembly to rise longitudinally along the support rod (as shown in Figure 4 ), avoiding interference between the air-blowing assembly and the sand mold or damage to the sand mold. The transverse air-blowing unit 2 enables the transverse movement of the air-blowing assembly while keeping it longitudinally fixed, and the longitudinal air-blowing unit 3 enables the longitudinal movement of the air-blowing assembly while keeping it transversely fixed. By the collaborative work of the transverse air-blowing unit 2 and the longitudinal air-blowing unit 3, the air-blowing device can not only flexibly adapt to sand mold products with different pore spacings, but also avoid the interference problem of the air-blowing assembly, thus reducing the risk of sand mold damage.

[0035] In this embodiment, there is one set of the longitudinal air-blowing unit 3, which is arranged in the middle of the transverse direction of the support frame 1, and there are two sets of the transverse air-blowing units 2, and the two sets of the transverse air-blowing units 2 are respectively arranged on both sides of the transverse direction of the longitudinal air-blowing unit 3.

[0036] By using three air-blowing assemblies for air-blowing, the air-blowing efficiency is tripled, and the function of simultaneously air-blowing three pores at a time is realized. The air-blowing efficiency of up to 120 exhaust pores can be achieved within the production rhythm (60 s), meeting the production requirements of the molding line. The function of simultaneously air-blowing exhaust pores with different spacings can be realized through the transverse air-blowing units 2 on both sides, which can not only meet the rhythm requirements but also realize the simultaneous air-blowing of exhaust pores with different spacings.

[0037] In actual use, according to the distribution of exhaust pores of different products, the air-blowing device can selectively enable one set or two sets or three sets of air-blowing assemblies for air-blowing. When there is only one exhaust pore in a single row, move the transverse air-blowing unit 2 to the end, and at this time, the middle longitudinal air-blowing unit 3 rises (as shown in Figure 3 ), and use the transverse air-blowing unit 2 at one end for air-blowing; when there are two exhaust pores in a single row, adjust the distance between the transverse air-blowing units 2 on both sides according to the pore spacing, and at this time, the middle longitudinal air-blowing unit 3 rises (as shown in Figure 3 ), and use the two transverse air-blowing units 2 for air-blowing; when there are three exhaust pores in a single row, adjust the distances between the transverse air-blowing units 2 on both sides respectively to make the distance between the three air-blowing assemblies match the pore spacing, and at this time, the middle longitudinal air-blowing unit 3 rises, and the three air-blowing assemblies blow simultaneously.

[0038] In this embodiment, the lateral movement mechanism 25 is an embedded screw slide table (purchased externally, such as the GRH8 series), which includes a main body and a slide table. The slide table can move along the main body. The main body is installed on the bottom side of the support frame 1, and the first air blowing assembly is installed on the bottom side of the slide table. The screw slide table enables the movement mechanism to operate smoothly and can precisely control the position of the slide table through the rotation of the screw. The first air blowing assembly is installed on the bottom side of the slide table and changes its position as the slide table moves, ensuring that each air blowing operation can be aligned with the exhaust hole position.

[0039] The transverse air blowing unit 2 further includes a transverse frame 21. The transverse frame 21 is installed on the bottom side of the slide table of the lateral movement mechanism 25, and the first air blowing assembly is installed on the front side of the transverse frame 21. The main function of the transverse frame 21 is to carry and fix the first air blowing assembly and, driven by the lateral movement mechanism 25, achieve the lateral movement of the air blowing assembly. The material of the transverse frame 21 is selected as high-strength alloy, which can maintain rigidity during frequent movement and ensure that the position of the first air blowing assembly does not shift.

[0040] The transverse air blowing unit 2 further includes a drag chain 24. One end of the drag chain 24 is installed on the support frame 1, and the other end of the drag chain is installed on the transverse frame 21. The main function of the drag chain 24 is to provide stable air pipe and cable management for the transverse frame 21 and the first air blowing assembly. One end of the drag chain 24 is fixed on the support frame 1, and the other end is fixed on the transverse frame 21. As the transverse frame 21 moves, the drag chain 24 can orderly manage the air pipes and cables, prevent them from being entangled or worn during movement, and reduce production stoppages caused by air pipe or cable problems.

[0041] The transverse air blowing unit 2 further includes a servo motor 26. The servo motor 26 is installed at the end of the top side of the support frame 1 and is used to drive the slide table of the lateral movement mechanism 25 to move. The servo motor 26 is connected to the slide table screw. The rotation of the servo motor 26 drives the screw to rotate, thereby driving the slide table to move laterally and further controlling the position of the first air blowing assembly. The application of the servo motor 26 makes the movement of the slide table more precise, can finely adjust the position of the air blowing assembly according to actual needs, thereby achieving effective air blowing of exhaust holes at different positions, greatly improving the air blowing efficiency and quality. At the same time, the use of the servo motor 26 reduces manual intervention, improves the automation degree of the air blowing process, and reduces the operation complexity and error probability.

[0042] The longitudinal movement mechanism 32 is a slide cylinder (purchased externally, such as the MXQ series), which includes a cylinder and an L-shaped slide. The cylinder is installed on the support frame 1, and the L-shaped slide is connected to the piston rod of the cylinder. The second air blowing assembly is installed on the L-shaped slide. During the air blowing operation, according to the instructions of the control system, the slide cylinder drives the L-shaped slide and the second air blowing assembly installed thereon to move longitudinally along the support frame 1. This movement process can realize the adjustment of the second air blowing assembly in the vertical direction, avoiding interference or damage to the sand mold.

[0043] The longitudinal movement and air blowing unit 3 further includes a mounting bracket 31 and a longitudinal movement plate 33. The mounting bracket 31 is installed on the front side of the support frame 1, the cylinder is installed on the mounting bracket 31, the longitudinal movement plate 33 is installed on the L-shaped slide, and the second air blowing assembly is installed on the longitudinal movement plate 33. The mounting bracket 31 is fixed on the front side of the support frame 1 for installing the slide cylinder. The longitudinal movement plate 33 is installed on the L-shaped slide for fixing the second air blowing assembly. Through the combination of the mounting bracket 31 and the longitudinal movement plate 33, the longitudinal movement and air blowing unit 3 can move longitudinally more stably and efficiently, and is convenient for disassembly and maintenance.

[0044] The longitudinal movement and air blowing unit 3 further includes a slide valve group 34. The slide valve group 34 is connected to the cylinder through an air pipe and is used to control the lifting of the L-shaped slide. During the air blowing process, after receiving a signal from the control system, the slide valve group 34 activates the corresponding pneumatic valve to adjust the air pressure inside the cylinder, thereby controlling the lifting movement of the L-shaped slide.

[0045] The first air blowing assembly and the second air blowing assembly have the same structure, and both include a fixed seat 22 and a blowing air pipe 23. The fixed seat 22 is installed on the transverse movement frame 21 of the transverse movement mechanism 25 or the longitudinal movement plate 33 of the longitudinal movement mechanism 32, and the blowing air pipe 23 is installed on the fixed seat 22.

[0046] The cleaning device has been changed to a three-gun structure. The two side blowing guns are driven by a servo motor 26 to achieve mobility, and the position where each blowing component blows each time is controlled. Through such a design, the cleaning device can blow 3 exhaust holes each time (taking 1.5 s), and can blow up to 120 exhaust holes within the production beat (60 s), meeting the production requirements of the current molding line. When the number of exhausts is small (≤40), only the single gun in the middle can be used for blowing. When the number of exhaust holes exceeds 40, a three-gun mode is adopted, and 2 to 3 exhaust holes can be blown together each time, enabling the cleaning process to be completed within the production beat time, so that this process is no longer a bottleneck process. At the same time, since robot cleaning replaces manual cleaning, the consistency of the cleaning process is improved, and casting defects caused by scattered sand in the exhaust no longer occur. It effectively solves the problem that manual cleaning cannot meet the beat due to a large number of exhausts and uneven position distribution. At the same time, the robot replaces manual labor, avoiding the inconsistency of manual cleaning quality, improving the quality of the sand mold, and reducing the generation of unqualified castings.

[0047] Blowing process:

[0048] The sixth axis of the robot is connected to the cleaning device through a mounting plate 4, and the robot carries the cleaning device to a designated position for cleaning. The cleaning device body consists of 3 blowing components, and the blowing components are controlled by a servo motor 26 and move back and forth on a support frame 1. The robot receives production information from the molding line, binds the production information with the cleaning positions programmed in the control system, and the robot confirms the positions that need to be cleaned. After receiving the information that the sand box is in place (the sand box positioning oil cylinder extends in place), the robot starts to move to the cleaning position. During the movement, the servo motor 26 starts to act, slides the blowing component to the designated position, then the robot inserts the blow pipe 23 of the blowing device into the exhaust hole, the blowing valve group 27 is opened respectively, and the blow pipe 23 starts to blow. After the blowing is completed, the robot starts to move to the next cleaning position, and the servo motor 26 continues to operate to adjust the position of the blowing component, and the above work is cycled until all the exhaust holes in the sand box are cleaned. It effectively solves the problem that the cleaning of products with more than 40 exhaust holes does not meet the beat requirements, and at the same time solves the problem of casting defects caused by poor consistency of manual cleaning, and can produce high-quality castings that meet the requirements.

[0049] Although the specific implementation manners of the present invention are described above in conjunction with the drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative labor are still within the protection scope of the present invention.

Claims

1. An exhaust hole cleaning and blowing device, characterized in that, Comprising: A support frame, a transverse translation and blowing unit, and a longitudinal translation and blowing unit; The transverse translation and blowing unit includes a transverse movement mechanism and a first blowing assembly. The first blowing assembly is installed on the bottom side of the support frame through the transverse movement mechanism and can move horizontally along the support frame; The longitudinal translation and blowing unit includes a longitudinal movement mechanism and a second blowing assembly. The second blowing assembly is installed on the front side of the support frame through the longitudinal movement mechanism and can move longitudinally along the support frame.

2. The exhaust hole purging device according to claim 1, characterized in that, There is one set of the longitudinal translation and blowing unit, which is arranged in the middle of the transverse direction of the support frame. There are two sets of the transverse translation and blowing units, and the two sets of transverse translation and blowing units are respectively arranged on both sides of the longitudinal translation and blowing unit in the transverse direction.

3. The exhaust hole purging device according to claim 2, characterized in that, The transverse movement mechanism is an embedded screw slide table, including a body and a slide. The slide can move along the body. The body is installed on the bottom side of the support frame, and the first blowing assembly is installed on the bottom side of the slide.

4. The exhaust hole cleaning device according to claim 3, characterized in that, The transverse translation and blowing unit further includes a transverse moving frame. The transverse moving frame is installed on the bottom side of the slide of the transverse movement mechanism, and the first blowing assembly is installed on the front side of the transverse moving frame.

5. The exhaust hole purging device according to claim 4, wherein The transverse translation and blowing unit further includes a drag chain. One end of the drag chain is installed on the support frame, and the other end of the drag chain is installed on the transverse moving frame.

6. The exhaust hole purging device according to claim 3, wherein The transverse translation and blowing unit further includes a servo motor. The servo motor is installed at the end of the top side of the support frame and is used to drive the slide of the transverse movement mechanism to move.

7. The air vent cleaning device according to claim 1, wherein The longitudinal movement mechanism is a slide cylinder, including a cylinder and an L-shaped slide. The cylinder is installed on the support frame, and the L-shaped slide is connected to the piston rod of the cylinder. The second blowing assembly is installed on the L-shaped slide.

8. The exhaust hole purging device according to claim 7, wherein, The longitudinal translation and blowing unit further includes a mounting frame and a longitudinal moving plate. The mounting frame is installed on the front side of the support frame, the cylinder is installed on the mounting frame, the longitudinal moving plate is installed on the L-shaped slide, and the second blowing assembly is installed on the longitudinal moving plate.

9. The exhaust hole purging device according to claim 7, wherein, The longitudinal translation and blowing unit further includes a slide valve group. The slide valve group is connected to the cylinder through an air pipe and is used to control the lifting of the L-shaped slide.

10. The exhaust hole purging device according to claim 1, characterized in that, The first blowing assembly and the second blowing assembly have the same structure, and both include a fixed seat and a blowing pipe. The fixed seat is installed on the transverse movement mechanism or the longitudinal movement mechanism, and the blowing pipe is installed on the fixed seat.

Images