Inner cavity cleaning equipment for sand core

Abstract

The utility model relates to inner cavity cleaning equipment of a sand core in the technical field of sand core cleaning. The inner cavity cleaning equipment of the sand core comprises a frame body; the brush is horizontally erected at the top of the frame body; and the driver is used for driving the brush to rotate. According to the inner cavity cleaning equipment for the sand core, the cleaning efficiency and the cleaning effect on the inner cavity of the sand core can be improved, and the quality of a cast connected cylinder cover is improved.

Description

Technical Field

[0001] The present application relates to the technical field of sand core cleaning, and in particular to an inner cavity cleaning device for a sand core. Background Art

[0002] One-piece cylinder heads are usually cast in two parts (cylinder head and cylinder body) together. The production of the sand cores (chassis core and upper cover core) of the one-piece cylinder head requires a series of steps and then assembly. During the production process of the chassis core and upper cover core of the one-piece cylinder head, the burrs on the inner cavity of the sand core need to be cleaned to ensure the quality of the cast one-piece cylinder head. However, the burrs are often cleaned manually by brushing the inner cavity surface with a brush. This is not only labor-intensive and time-consuming, but also difficult to guarantee the quality of manual cleaning, which can easily affect the quality of the cast one-piece cylinder head. Utility Model Content

[0003] In view of the problems existing in the background technology, the present application provides a sand core inner cavity cleaning device, which can improve the cleaning efficiency and cleaning effect of the sand core inner cavity and improve the quality of the cast one-piece cylinder head.

[0004] According to one aspect of the utility model, a sand core inner cavity cleaning device is provided, comprising: a frame; a brush horizontally mounted on the top of the frame; and a driver for driving the brush to rotate.

[0005] In some embodiments of the present invention, the inner cavity cleaning device of the sand core further comprises: an air curtain blowing system for blowing away the scattered sand generated by the brush during the cleaning process.

[0006] In some embodiments of the present invention, the inner cavity cleaning device of the sand core further comprises: a side cleaning system for cleaning the side of the sand core.

[0007] In some embodiments of the present invention, the side cleaning system includes: two soft rubbers, which are arranged opposite to each other and at intervals, and are both installed on the top of the frame.

[0008] In some embodiments of the present invention, the side cleaning system further includes: two support frames, which are arranged opposite to each other and at intervals, and are installed on the top of the frame body, and the two soft rubbers are respectively installed on the sides facing the two support frames.

[0009] In some embodiments of the present invention, the inner cavity cleaning device of the sand core further includes: a bottom surface cleaning system for cleaning the bottom surface of the sand core.

[0010] In some embodiments of the utility model, the bottom surface cleaning system includes: a hard scraper installed on the top of the frame and perpendicular to the top of the frame; a flexible scraper installed on the top of the frame, parallel to the hard scraper and arranged at intervals, and the upper top of the flexible scraper is higher than the upper top of the hard scraper.

[0011] In some embodiments of the utility model, the bottom surface cleaning system also includes: a cleaning bracket, the hard scraper and the flexible scraper are installed on the cleaning bracket; a lifting cylinder, formed with a fixed end and a movable end, the fixed end is installed on the top of the frame, and the cleaning bracket is installed on the movable end.

[0012] In some embodiments of the present invention, the bottom surface cleaning system further comprises: a linear guide, which is arranged parallel to and spaced apart from the lifting cylinder and connects the cleaning bracket and the frame.

[0013] In some embodiments of the present invention, the inner cavity cleaning device of the sand core further includes: a waste collection system, which is installed on the frame and located below the brush.

[0014] An embodiment of the present application provides a sand core inner cavity cleaning device, in which a brush is horizontally mounted on the top of a frame, and the brush is driven to rotate by a driver. When the burrs in the inner cavity of the sand core need to be cleaned, the sand core can be carried to the top of the frame by a robot fixture, and the sand core reaches the brush in a 180° posture (with the inner cavity of the sand core facing downward) under the control of the robot through the fixture, and the output signal controls the driver to rotate to drive the brush to rotate. The robot drives the sand core to make its inner cavity contact with the brush and then move horizontally. The flaky sand burrs formed by the exhaust plug of the tooling can be cleaned by the rotating force of the brush, thereby reducing the labor intensity of manually cleaning the inner cavity of the sand core, improving the cleaning efficiency and cleaning effect of the inner cavity of the sand core, and thereby improving the quality of the cast one-piece cylinder head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the inner cavity cleaning device of the sand core of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the bottom surface cleaning system of the utility model.

[0018] The reference numerals in the accompanying drawings represent the following:

[0019] 401. Driver; 403. Brush; 404. Side cleaning system; 405. Air curtain blowing system; 414. Flexible scraper; 415. Hard scraper; 416. Cleaning bracket; 417. Rubber spring; 418. Linear guide; 419. Lifting cylinder; 420. Waste collection system; 421. Frame. DETAILED DESCRIPTION

[0020] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0021] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0022] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0023] The present application discloses a sand core inner cavity cleaning device. Figure 1 As shown, the inner cavity cleaning device of the sand core includes a frame 421, a brush 403 and a driver 401, wherein the brush 403 is horizontally mounted on the top of the frame 421, and the driver 401 is used to drive the brush 403 to rotate.

[0024] By using the inner cavity cleaning equipment in the technical solution, a brush 403 is horizontally mounted on the top of the frame 421, and the driver 401 drives the brush 403 to rotate. When the burrs in the inner cavity of the sand core need to be cleaned, the sand core can be carried to the top of the frame 421 by the robot's clamp. The sand core reaches the brush 403 at a 180° posture (with the inner cavity of the sand core facing downward) under the control of the robot through the clamp. The output signal controls the driver 401 to rotate and drive the brush 403 to rotate. The robot drives the sand core so that its inner cavity contacts the brush 403 and then moves horizontally. The rotating force of the brush 403 can clean the flaky sand burrs formed by the tooling exhaust plug, thereby reducing the labor intensity of manually cleaning the inner cavity of the sand core, improving the cleaning efficiency and cleaning effect of the inner cavity of the sand core, and thereby improving the quality of the cast one-piece cylinder head.

[0025] Furthermore, the brush 403 is designed to avoid the inner convex surface of the sand core.

[0026] It should be noted that one or more than two brushes 403 may be installed on the frame 421 . When more than two brushes 403 are installed on the frame 421 , each brush 403 may be designed according to the inner cavity of different sand cores.

[0027] Specifically, in this embodiment, two brushes 403 are installed on the frame 421, one of the brushes 403 is designed according to the inner cavity of the chassis core, and the other brush 403 is designed according to the inner cavity of the upper cover core. Therefore, depending on the type of sand core of the same one-piece cylinder head, the robot can control the fixture to carry the sand core to the corresponding brush 403 to complete the cleaning of the inner cavity.

[0028] In some embodiments of the present invention, Figure 1 As shown, the brush 403 can be horizontally mounted on the frame 421 through a bearing and a bearing bracket. The driver 401 can be a motor, which can be directly mounted on the frame 421. The output shaft of the electrode can be coaxially connected to one end of the brush 403 or connected through a steering gear.

[0029] In some embodiments of the present invention, Figure 1 As shown, the inner cavity cleaning device also includes an air curtain blowing system 405, which is used to blow away the scattered sand generated by the brush 403 during the cleaning process.

[0030] The air curtain purge system 405 is used to blow away the scattered sand generated during the cleaning process of the inner cavity cleaning device, so as to prevent the scattered sand from affecting the product quality in the later production.

[0031] The air curtain purge system 405 in this embodiment can adopt structures such as wind knife and air knife, which is installed on the frame 421 on one side of the brush 403, that is, the air curtain purge system 405 is arranged along the length direction of the brush 403 to cover the entire length range of the sand core cavity.

[0032] In some embodiments of the present invention, Figure 1 As shown, the inner cavity cleaning device further includes a side cleaning system 404, and the side cleaning system 404 is used to clean the side of the sand core.

[0033] While the brush 403 cleans the inner cavity of the sand core, the side cleaning system 404 cleans the burrs on the side parting surface of the sand core to reduce the burrs on the side parting surface of the sand core.

[0034] Specifically, in this embodiment, the side cleaning system 404 includes two soft rubbers, which are arranged opposite to each other and spaced apart, and both of the soft rubbers are installed on the top of the frame 421 .

[0035] Furthermore, the side cleaning system 404 also includes two support frames, which are opposite to each other and spaced apart. Both support frames are installed on the top of the frame body 421, and two soft rubbers are respectively installed on the opposite sides of the two support frames.

[0036] The soft rubber is supported by a support frame to ensure that the soft rubber can efficiently remove burrs on the side parting surface of the sand core.

[0037] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the inner cavity cleaning device also includes a bottom surface cleaning system, which is used to clean the bottom surface of the sand core.

[0038] After the brush 403 cleans the inner cavity of the sand core and the soft rubber cleans the side parting surface of the sand core, the robot carries the sand core away from the brush 403 through the clamp, and adjusts the sand core to a 0° posture (the bottom surface of the sand core faces downward) under the control of the clamp. The robot drives the bottom surface of the sand core to make it contact with the bottom surface cleaning system and then moves horizontally to clean the high point protrusions on the bottom plane of the sand core to reduce defects on the bottom surface of the sand core.

[0039] Specifically, in this embodiment, the bottom surface cleaning system includes a hard scraper 415 and a flexible scraper 414, wherein the hard scraper 415 is installed on the top of the frame 421 and is perpendicular to the top of the frame 421; the flexible scraper 414 is installed on the top of the frame 421, and the flexible scraper 414 is parallel to the hard scraper 415 and arranged at intervals, and the upper top of the flexible scraper 414 is higher than the upper top of the hard scraper 415.

[0040] The robot drives the sand core to make it contact with the hard scraper 415 and the flexible scraper 414 and then move it horizontally, so as to clean the high point protrusions on the bottom plane of the sand core.

[0041] In some embodiments of the present invention, Figure 2 As shown, the bottom surface cleaning system also includes a cleaning bracket 416 and a lifting cylinder 419, wherein the hard scraper 415 and the flexible scraper 414 are installed on the cleaning bracket 416; the lifting cylinder 419 is formed with a fixed end and a movable end, the fixed end is installed on the top of the frame 421, and the cleaning bracket 416 is installed on the movable end.

[0042] In one working condition, when the brush 403 cleans the inner cavity of the sand core and the soft rubber cleans the side parting surface of the sand core, the lifting cylinder 419 contracts and retracts the cleaning bracket 416 to prevent the hard scraper 415 and the flexible scraper 414 from affecting the cleaning work of the brush 403 and the soft rubber.

[0043] In another working condition, after the brush 403 cleans the inner cavity of the sand core and the soft rubber cleans the side parting surface of the sand core, the robot outputs a signal to control the lifting cylinder 419 to lift the cleaning bracket 416, and then pushes out the hard scraper 415 and the flexible scraper 414, so that the hard scraper 415 and the flexible scraper 414 can better contact with the bottom plane of the sand core.

[0044] The cleaning bracket 416 and the lifting cylinder 419 can effectively reduce the space occupied by the bottom surface cleaning system on the frame 421, thereby reducing the volume of the inner cavity cleaning equipment.

[0045] Furthermore, the hard scraper 415 is made of metal with a raised file plate on the surface, and a rubber spring 417 is installed between the bottom and the cleaning bracket 416 to clean the high point residues on the bottom plane of the sand core. The flexible scraper 414 uses soft rubber to clean the plane processed by the hard scraper 415.

[0046] Furthermore, the bottom surface cleaning system also includes a linear guide 418 , which is parallel to and spaced apart from the lifting cylinder 419 , and connects the cleaning bracket 416 and the frame 421 .

[0047] The linear guide 418 can improve the stability of the cleaning bracket 416, thereby ensuring the cleaning effect of the hard scraper 415 and the flexible scraper 414 on the bottom plane of the sand core.

[0048] Specifically, the linear guide 418 may adopt a telescopic rod structure.

[0049] In some embodiments of the present invention, Figure 1As shown, the inner cavity cleaning device further includes a waste collection system 420 , which is mounted on a frame 421 and is located below the brush 403 .

[0050] The waste collection system 420 can collect the scattered sand cleaned by the brush 403, the soft rubber and hard scrapers 415 and the flexible scrapers 414 together to avoid being scattered everywhere and facilitate centralized treatment.

[0051] Specifically, in this embodiment, the waste collection system 420 is an inclined hopper-like structure, through which the scattered sand can be collected at one location on the ground. If a collection container is placed at the bottom of the hopper-like structure, the scattered sand can also be guided into the collection container.

[0052] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A sand core inner cavity cleaning device, characterized in that: include: Frame; A brush is horizontally mounted on the top of the frame; A driver, used for driving the brush to rotate; Side cleaning system, used to clean the sides of sand cores.

2. The inner cavity cleaning device of the sand core according to claim 1, characterized in that: Also includes: The air curtain blowing system is used to blow away the scattered sand generated by the brush during the cleaning process.

3. The inner cavity cleaning device of the sand core according to claim 1, characterized in that: The side cleaning system comprises: Two soft rubbers are arranged opposite to each other and at intervals, and are both installed on the top of the frame.

4. The inner cavity cleaning device of the sand core according to claim 3, characterized in that: The side cleaning system also includes: Two support frames are arranged opposite to each other and at intervals, and are installed on the top of the frame body. The two soft rubbers are respectively installed on the opposite sides of the two support frames.

5. The inner cavity cleaning device of the sand core according to claim 1, characterized in that: Also includes: Bottom cleaning system is used to clean the bottom surface of the sand core.

6. The inner cavity cleaning device of the sand core according to claim 5, characterized in that: The bottom surface cleaning system comprises: A hard scraper is installed on the top of the frame and is perpendicular to the top of the frame; The flexible scraper is installed on the top of the frame, parallel to and spaced from the hard scraper, and the upper top of the flexible scraper is higher than the upper top of the hard scraper.

7. The inner cavity cleaning device of the sand core according to claim 6, characterized in that: The bottom surface cleaning system also includes: A cleaning bracket, the hard scraper and the flexible scraper are mounted on the cleaning bracket; The lifting cylinder is formed with a fixed end and a movable end, wherein the fixed end is mounted on the top of the frame, and the cleaning bracket is mounted on the movable end.

8. The inner cavity cleaning device of the sand core according to claim 7, characterized in that: The bottom surface cleaning system also includes: A linear guide is arranged parallel to and spaced apart from the lifting cylinder, and connects the cleaning bracket and the frame.

9. The inner cavity cleaning device of the sand core according to claim 1, characterized in that: Also includes: The waste collection system is installed on the frame and located below the brush.

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