Buffer positioning structure applied to net releasing machine

Abstract

The utility model relates to the technical field of aluminum alloy hub casting, and discloses a buffer positioning structure applied to a net releasing machine, which comprises a net releasing machine body, the net releasing machine body comprises a net releasing swing arm, the tail end of the net releasing swing arm is rotatably connected with a machine table, a buffer mechanism is arranged corresponding to the net releasing swing arm, and the buffer mechanism comprises a buffer support connected with the machine table. A buffering baffle is arranged at the extending end of the buffering support corresponding to the net placing station of the net placing swing arm and used for buffering inertial impact generated when the net placing swing arm swings in place. According to the utility model, the buffer mechanism is used for absorbing the inertial impact when the net releasing swing arm swings in place, so that the net releasing swing arm stably swings to a net releasing station, the inertial impact among parts of the net releasing machine body is effectively counteracted, and the abrasion among the parts is reduced; and meanwhile, the buffering baffle plays a role in limiting the net placing swing arm, so that the shaking of the net placing swing arm when the net placing swing arm swings in place is relieved, the action precision of the net placing swing arm is improved, the net placing positioning precision is further guaranteed, and the continuity and stability of the production process are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy wheel hub casting technology, and in particular to a buffer positioning structure applied to a net-laying machine. Background Technology

[0002] In the aluminum alloy wheel casting process, molten aluminum is poured into the mold cavity through a pouring cup to complete the filling. After pressure holding and cooling processes, the aluminum alloy wheel blank is finally cast. The cleanliness of the molten aluminum directly affects the quality of the cast product. Therefore, a filter screen needs to be placed at the pouring cup position during the molten aluminum pouring process to filter out aluminum slag and other impurities, ensuring the cleanliness of the molten aluminum. Currently, a swing-type screen-laying machine is commonly used on-site to perform the screen-laying action. After long-term use, wear gaps will inevitably appear between the various components of the screen-laying machine, affecting the movement accuracy of the screen-laying machine's swing arm. Furthermore, the inertial impact of a sudden stop after the screen-laying machine's swing arm rotates to its final position will exacerbate the wear between the various components and the shaking of the swing arm during its stop, easily causing positioning deviations in the screen-laying machine's swing arm, resulting in improper screen laying and affecting the filtration effect of the molten aluminum.

[0003] Therefore, developing a novel buffer positioning structure for use in net-laying machines is an urgent problem to be solved. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing a buffer positioning structure for a screen-laying machine, thereby solving the problem that existing screen-laying machines are easily affected by inertial impacts, resulting in poor positioning accuracy and affecting the filtration effect of molten aluminum.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A buffer positioning structure for a net-laying machine includes a net-laying machine body, the net-laying machine body including a net-laying swing arm, the tail end of the net-laying swing arm being rotatably connected to a machine base, a buffer mechanism being provided corresponding to the net-laying swing arm, the buffer mechanism including a buffer bracket connected to the machine base, and a buffer baffle being provided at the extended end of the buffer bracket corresponding to the net-laying position of the net-laying swing arm, for buffering the inertial impact when the net-laying swing arm swings into position.

[0007] Preferably, the buffer baffle is an elastic material, and the buffer baffle is fixedly connected to the buffer bracket. The elastic deformation of the buffer baffle absorbs the inertial impact when the net-laying swing arm swings into place.

[0008] Preferably, the buffer bracket is tunably connected to the machine base, the buffer bracket has an adjustment elongated hole, and the machine base has a threaded hole corresponding to the adjustment elongated hole. When connecting and fixing, the fastening bolt passes through the adjustment elongated hole and is screwed into the threaded hole.

[0009] Preferably, the buffer baffle is rotatably connected to the buffer bracket, and the buffer baffle is connected to the buffer bracket through a lifting spring. The buffer bracket is provided with a support plate for supporting the lifting spring, and the lifting spring is supported between the buffer baffle and the support plate.

[0010] Preferably, a guide rod is inserted inside the lifting spring, the guide rod is hinged to the bottom of the buffer baffle, and a through hole is provided on the support plate. The diameter of the through hole is larger than the diameter of the guide rod. The guide rod is slidably connected to the through hole, and the diameter of the through hole is smaller than the inner diameter of the lifting spring, so that the lifting spring is limited to the upper end face of the support plate.

[0011] Preferably, an electromagnet is provided at the front end of the buffer baffle for attracting the net-laying swing arm, and a positioning plate is fixed on the net-laying swing arm corresponding to the electromagnet.

[0012] Preferably, an adjusting nut is screwed to the lower end of the guide slide rod. The adjusting nut is located on the lower end face of the support plate and is used to adjust the preload of the lifting spring.

[0013] The beneficial effects of this utility model are as follows: This utility model absorbs the inertial impact when the net-laying swing arm swings to its final position by setting a buffer mechanism for elastic displacement, so that the net-laying swing arm swings smoothly to the net-laying position, effectively offsetting the inertial impact between various parts of the net-laying machine body and reducing wear between parts; at the same time, the buffer baffle limits the net-laying swing arm, alleviates the shaking when the net-laying swing arm swings to its final position, improves the action accuracy of the net-laying swing arm, thereby ensuring the net-laying positioning accuracy, reducing the frequency of operators repeatedly checking the positioning accuracy of the net-laying swing arm, extending the fit clearance and spare parts replacement cycle, and ensuring the continuous and stable production process. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the buffer mechanism in this utility model.

[0017] Figure 3 for Figure 2 The right view.

[0018] In the diagram: 10--Net-laying machine body; 11--Net-laying swing arm; 12--Machine platform; 13--Threaded hole; 20--Buffer mechanism; 21--Buffer bracket; 22--Buffer baffle; 23--Adjusting elongated hole; 24--Lifting spring; 25--Support plate; 26--Guide slide rod; 27--Electromagnet; 28--Positioning plate; 29--Adjusting nut. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] like Figure 1-3 As shown, a buffer positioning structure for a screen-laying machine includes a screen-laying machine body 10. The screen-laying machine body 10 includes a screen-laying swing arm 11. The tail end of the screen-laying swing arm 11 is rotatably connected to a machine base 12, allowing the front end of the screen-laying swing arm 11 to swing to the mold pouring cup position to perform the screen placement action. To improve the movement accuracy of the screen-laying swing arm 11 and avoid positioning inaccuracies caused by its own wear gaps and inertial impact, a buffer mechanism 20 is provided corresponding to the screen-laying swing arm 11. The buffer mechanism 20 includes a buffer bracket 21 connected to the machine base 12. The extended end of the buffer bracket 21 is connected to a buffer baffle 22. The buffer baffle 22 is set corresponding to the screen-laying position of the screen-laying swing arm 11 and is used to buffer the inertial impact when the screen-laying swing arm 11 swings to the position.

[0021] During the screen-laying operation, the screen-laying swing arm 11 carries the filter screen and swings towards the mold's pouring cup. As it approaches the screen-laying station, the swing arm 11 contacts the buffer baffle 22 and presses against it, generating a certain elastic displacement. This elastic displacement of the buffer baffle 22 absorbs the inertial impact of the swing arm 11 as it swings into position, allowing it to swing smoothly to the screen-laying station. The buffer baffle 22 effectively counteracts the inertial impact between the components of the screen-laying machine body 10, reducing wear between parts. Simultaneously, the buffer baffle 22 limits the movement of the screen-laying swing arm 11, mitigating vibration when it swings into position, improving the swing arm's movement accuracy, and thus ensuring the screen-laying positioning accuracy. This reduces the frequency of operators repeatedly checking the positioning accuracy of the swing arm 11, extends the clearance and spare parts replacement cycle, and ensures continuous and stable production.

[0022] In a preferred embodiment, the buffer baffle 22 is an elastic material, and the buffer baffle 22 is fixedly connected to the buffer bracket 21. During use, the elastic deformation of the buffer baffle 22 absorbs the inertial impact when the net-laying swing arm 11 swings to its position, allowing the net-laying swing arm 11 to swing smoothly to the net-laying station. This embodiment has a simple structure and can be quickly installed on an existing net-laying machine body 10, making it easy to manufacture and implement.

[0023] Furthermore, the buffer bracket 21 is positionally adjustable to the machine base 12, making the position of the buffer baffle 22 on the buffer bracket 21 relative to the net-laying swing arm 11 adjustable. Specifically, the buffer bracket 21 has an adjustment elongated hole 23, and the machine base 12 has a threaded hole 13 corresponding to the adjustment elongated hole 23. When connecting and fixing, the fastening bolt passes through the adjustment elongated hole 23 and is screwed into the threaded hole 13. When adjusting, the fastening bolt is tightened at different height positions of the adjustment elongated hole 23, thereby adjusting the position of the buffer baffle 22. This embodiment can meet the buffer positioning requirements of different net-laying positions of the net-laying swing arm 11, is easy to adjust, and improves the applicability of this utility model.

[0024] In another embodiment, the buffer baffle 22 is rotatably connected to the buffer bracket 21, and the buffer baffle 22 is connected to the buffer bracket 21 through a lifting spring 24, thus achieving an elastic connection between the buffer baffle 22 and the buffer bracket 21. Preferably, the buffer bracket 21 is provided with a support plate 25 for supporting the lifting spring 24, and the lifting spring 24 is supported between the buffer baffle 22 and the support plate 25. When the net-laying swing arm 11 swings to the vicinity of the net-laying position, it will contact the buffer baffle 22, pushing the buffer baffle 22 to flip, forcing the tightening spring to retract under pressure, thereby buffering the inertial impact of the net-laying swing arm 11.

[0025] Furthermore, a guide rod 26 is inserted inside the lifting spring 24 to ensure the stability of the lifting spring 24's operation. Specifically, the guide rod 26 is hinged to the bottom of the buffer baffle 22, and a through hole is provided on the support plate 25. The diameter of the through hole is larger than the diameter of the guide rod 26, and the guide rod 26 is slidably connected to the through hole. The diameter of the through hole is smaller than the inner diameter of the lifting spring 24, thus limiting the lifting spring 24 to the upper end face of the support plate 25. When the buffer baffle 22 is subjected to force and flips, it compresses the lifting spring 24 and retracts it, causing the guide rod 26 inserted inside the lifting spring 24 to move downward along the through hole. In this embodiment, the guide rod 26 guides the lifting spring 24, avoiding abnormal working conditions such as bending of the lifting spring 24 and ensuring operational stability.

[0026] Furthermore, an electromagnet 27 is provided at the front end of the buffer baffle 22 for attracting the net-laying swing arm 11. A positioning plate 28 is fixed on the net-laying swing arm 11 corresponding to the electromagnet 27. When the net-laying swing arm 11 carries the filter screen and swings to the net-laying station, the electromagnet 27 is energized to generate magnetic attraction, which attracts it to the positioning plate 28 of the net-laying swing arm 11, effectively suppressing the rebound of the net-laying swing arm 11, further reducing the shaking when the net-laying swing arm 11 swings into place, and improving the positioning accuracy.

[0027] Furthermore, an adjusting nut 29 is screwed to the lower end of the guide slide rod 26. The adjusting nut 29 is located on the lower end face of the support plate 25 and is used to adjust the preload of the lifting spring 24. At the same time, it enables free adjustment of the preset angle of the buffer baffle 22, further improving its applicability.

[0028] The above-disclosed embodiments are merely specific examples of this utility model, but this utility model is not limited thereto. For those skilled in the art, any modifications made without departing from the principle of this utility model should be considered as protected by this utility model.

Claims

1. A buffer positioning structure applied to a net-laying machine, characterized in that: The system includes a net-laying machine body (10), which includes a net-laying swing arm (11). The tail end of the net-laying swing arm (11) is rotatably connected to the machine platform (12). A buffer mechanism (20) is provided corresponding to the net-laying swing arm (11). The buffer mechanism (20) includes a buffer bracket (21) connected to the machine platform (12). The extended end of the buffer bracket (21) is provided with a buffer baffle (22) corresponding to the net-laying position of the net-laying swing arm (11) to buffer the inertial impact when the net-laying swing arm (11) swings into place.

2. The buffer positioning structure applied to a net-laying machine according to claim 1, characterized in that: The buffer baffle (22) is an elastic plate. The buffer baffle (22) is fixedly connected to the buffer bracket (21). The elastic deformation of the buffer baffle (22) absorbs the inertial impact when the net-laying swing arm (11) swings into place.

3. The buffer positioning structure applied to a net-laying machine according to claim 1, characterized in that: The buffer bracket (21) is tunably connected to the machine base (12). An adjustment elongated hole (23) is provided on the buffer bracket (21), and a threaded hole (13) is provided on the machine base (12) corresponding to the adjustment elongated hole (23). When the connection is fixed, the fastening bolt passes through the adjustment elongated hole (23) and is screwed into the threaded hole (13).

4. The buffer positioning structure applied to a net-laying machine according to claim 1, characterized in that: The buffer baffle (22) is rotatably connected to the buffer bracket (21). The buffer baffle (22) is connected to the buffer bracket (21) through the lifting spring (24). The buffer bracket (21) is provided with a support plate (25) for supporting the lifting spring (24). The lifting spring (24) is supported between the buffer baffle (22) and the support plate (25).

5. A buffer positioning structure for a net-laying machine according to claim 4, characterized in that: The lifting spring (24) is fitted with a guide slide rod (26), which is hinged to the bottom of the buffer baffle (22). A through hole is provided on the support plate (25). The diameter of the through hole is larger than the diameter of the guide slide rod (26). The guide slide rod (26) is slidably connected to the through hole, and the diameter of the through hole is smaller than the inner diameter of the lifting spring (24), so that the lifting spring (24) is limited to the upper end face of the support plate (25).

6. The buffer positioning structure applied to a net-laying machine according to claim 1, characterized in that: An electromagnet (27) is provided at the front end of the buffer baffle (22) for attracting the net-laying swing arm (11). A positioning plate (28) is fixed on the net-laying swing arm (11) corresponding to the electromagnet (27).

7. A buffer positioning structure for a net-laying machine according to claim 5, characterized in that: The lower end of the guide slide rod (26) is screwed with an adjusting nut (29), which is located on the lower end face of the support plate (25).

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