A pneumatic regeneration device for a resin sand production line

Abstract

This utility model discloses a pneumatic regeneration device for a resin sand production line, belonging to the field of resin sand production technology. It includes a demolding cylinder, a discharge pipe fixedly installed on the bottom side wall of the demolding cylinder, a cylinder cover on the top of the cylinder, a stirring component for stirring the old sand in the demolding cylinder on the cylinder cover, and an airflow component for impacting the old sand in the demolding cylinder at the bottom of the cylinder. This utility model enables the old sand to enter the demolding cylinder during resin sand casting production, where the airflow component keeps the old sand in a flowing state, and then the stirring component stirs the old sand, increasing the contact area between the old sand and the airflow, thereby improving demolding efficiency.

Description

Technical Field

[0001] This utility model relates to the field of resin sand production technology, specifically to a pneumatic regeneration device for a resin sand production line. Background Technology

[0002] In resin sand casting production processes, the recycling of used sand is of great significance for reducing production costs and minimizing environmental pollution. Pneumatic regeneration devices, as highly efficient used sand regeneration equipment, can achieve sand removal through airflow, improving the quality and utilization rate of recycled sand.

[0003] However, existing pneumatic regeneration devices typically lack a stirring structure, relying solely on airflow to cause friction and collisions in the old sand to achieve delamination, which may result in limited delamination effectiveness. Therefore, this invention proposes a pneumatic regeneration device for resin sand production lines. Utility Model Content

[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0005] A pneumatic regeneration device for a resin sand production line includes a demolding cylinder, a discharge pipe fixedly installed on the bottom side wall of the demolding cylinder, a cylinder cover provided on the top of the demolding cylinder, a stirring component for stirring the old sand in the demolding cylinder on the cylinder cover, and an airflow component for airflow impact on the old sand in the demolding cylinder at the bottom end of the demolding cylinder.

[0006] The stirring assembly includes:

[0007] A rotating shaft is rotatably connected to the middle of the cylinder cover via a bearing;

[0008] A stirring rod, wherein several stirring rods are detachably connected to the rotating shaft via a connecting assembly.

[0009] In a preferred embodiment of the pneumatic regeneration device for a resin sand production line described in this utility model, a servo motor is fixedly installed on the top of the cylinder cover, and the output shaft of the servo motor is fixedly connected to the rotating shaft.

[0010] In a preferred embodiment of the pneumatic regeneration device for a resin sand production line described in this utility model, the outer side of the stirring rod is provided with a wear-resistant layer to improve the wear resistance of the stirring rod.

[0011] In a preferred embodiment of the pneumatic regeneration device for a resin sand production line according to this utility model, the connecting assembly includes:

[0012] An annular plate, which is fixedly mounted on a rotating shaft;

[0013] A protrusion is fixedly installed on one end of the stirring rod and inserted into the annular plate.

[0014] In a preferred embodiment of the pneumatic regeneration device for a resin sand production line according to this utility model, the connecting assembly further includes:

[0015] A through hole, wherein the through hole is formed in the protrusion;

[0016] A positioning groove is provided at the bottom end of the annular plate below the through hole.

[0017] In a preferred embodiment of the pneumatic regeneration device for a resin sand production line according to this utility model, the connecting assembly further includes:

[0018] The top of the annular plate above the through hole is slidably connected to the T-shaped rod, and the bottom end of the T-shaped rod passes through the through hole and is inserted into the positioning groove;

[0019] A spring is fitted onto a T-shaped rod, and both ends of the spring are fixedly connected to the annular plate and the end of the T-shaped rod, respectively.

[0020] In a preferred embodiment of the pneumatic regeneration device for a resin sand production line according to this utility model, the airflow assembly includes:

[0021] Support rods are fixedly installed on both sides of the bottom end of the demolding cylinder;

[0022] A support plate, which is fixedly installed between two sets of support rods;

[0023] A cylinder, which is fixedly mounted on the top of a support plate.

[0024] In a preferred embodiment of the pneumatic regeneration device for a resin sand production line according to this utility model, the airflow assembly further includes:

[0025] The inner cavity of the demolding cylinder is slidably connected to two sets of circular plates, and several connecting rods are provided between the two sets of circular plates. The piston rod of the cylinder is fixedly installed on the lower circular plate through a connecting block.

[0026] Micropores: The upper circular plate has several micropores.

[0027] Air pumps, several air pumps are fixedly installed on the top of the support plate;

[0028] A hose is fixedly installed on the air outlet of the air pump, and one end of the hose is fixedly installed on the circular plate below.

[0029] Compared with existing technologies:

[0030] By installing a stirring component on the cylinder cover for stirring the old sand in the demolding cylinder, and an airflow component at the bottom of the demolding cylinder for airflow impact on the old sand in the demolding cylinder, the old sand can be kept in a flowing state by the airflow component after entering the demolding cylinder during resin sand casting production. Then, the old sand is stirred by the stirring component to increase the contact area between the old sand and the airflow and improve the demolding efficiency. In addition, by installing a connecting component to install the stirring rod, it is possible to facilitate the replacement of the stirring rod when it is severely worn. Attached Figure Description

[0031] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0032] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0033] Figure 3 This is a top view of a partial structure of the stirring assembly of this utility model;

[0034] Figure 4 This is a top view of the circular plate of this utility model;

[0035] Figure 5 This is a schematic diagram of the demolding cylinder structure of this utility model.

[0036] In the figure: demolding cylinder 10, discharge pipe 11, cylinder cover 12, rotating shaft 20, stirring rod 21, servo motor 22, wear-resistant layer 30, annular plate 40, protrusion 41, through hole 42, positioning groove 43, T-shaped rod 44, spring 45, support rod 50, support plate 51, cylinder 52, round plate 53, micropore 54, air pump 55, hose 56. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0038] This utility model provides a pneumatic regeneration device for a resin sand production line. Please refer to [link / reference]. Figures 1-5 The device includes a stripping cylinder 10, a discharge pipe 11 fixedly installed on the bottom side wall of the stripping cylinder 10, and a cylinder cover 12 on the top of the stripping cylinder 10. A sealing ring can be set between the stripping cylinder 10 and the cylinder cover 12 as needed. The cylinder cover 12 is equipped with a stirring component for stirring the old sand in the stripping cylinder 10, and an airflow component for airflow impact on the old sand in the stripping cylinder 10 is provided at the bottom of the stripping cylinder 10. The left side of the cylinder cover 12 is equipped with a feed pipe with a valve, and the right side of the cylinder cover 12 is equipped with an exhaust pipe with a valve.

[0039] The stirring assembly includes: a rotating shaft 20, a stirring rod 21, and a servo motor 22;

[0040] The rotating shaft 20 is rotatably connected to the middle of the cylinder cover 12 via a bearing, preferably the bearing in patent CN217736027U. Several stirring rods 21 are detachably connected to the rotating shaft 20 via a connecting assembly. A servo motor 22 is fixedly installed on the top of the cylinder cover 12, and the output shaft of the servo motor 22 is fixedly connected to the rotating shaft 20. A wear-resistant layer 30 is provided on the outer side of the stirring rod 21 to improve the wear resistance of the stirring rod 21. The wear-resistant layer 30 is formed by a wear-resistant coating.

[0041] The connecting components include: annular plate 40, protrusion 41, through hole 42, positioning groove 43, T-shaped rod 44, and spring 45;

[0042] An annular plate 40 is fixedly mounted on a rotating shaft 20. A protrusion 41 is fixedly mounted on one end of a stirring rod 21 and inserted into the annular plate 40. A through hole 42 is opened in the protrusion 41. A positioning groove 43 is opened at the bottom end of the annular plate 40 below the through hole 42. A T-shaped rod 44 is slidably connected to the top end of the annular plate 40 above the through hole 42, and the bottom end of the T-shaped rod 44 passes through the through hole 42 and is inserted into the positioning groove 43. A spring 45 is sleeved on the T-shaped rod 44, and the two ends of the spring 45 are fixedly connected to the ends of the annular plate 40 and the T-shaped rod 44, respectively.

[0043] The airflow assembly includes: a support rod 50, a support plate 51, a cylinder 52, a circular plate 53, a micropore 54, an air pump 55, and a hose 56;

[0044] Support rods 50 are fixedly installed on both sides of the bottom end of the stripping cylinder 10. A support plate 51 is fixedly installed between the two sets of support rods 50. A cylinder 52 is fixedly installed on the top of the support plate 51. Two sets of circular plates 53 are slidably connected to the bottom of the inner cavity of the stripping cylinder 10. A sealing ring can be set between the circular plates 53 and the stripping cylinder 10 as needed. Several connecting rods are provided between the two sets of circular plates 53. The piston rod of the cylinder 52 is fixedly installed on the lower circular plate 53 through a connecting block. Several micro-holes 54 are opened on the upper circular plate 53. The diameter of the micro-holes 54 is smaller than the particle size of the old sand. Several air pumps 55 are fixedly installed on the top of the support plate 51. A hose 56 is fixedly installed on the air outlet of the air pump 55. One end of the hose 56 is fixedly installed on the lower circular plate 53. The length of the hose 56 is left with a margin and can be set according to the requirements.

[0045] The specific operating steps for those skilled in the art during the production of resin sand are as follows:

[0046] A vibrating feeder is used to feed old sand (including but not limited to ferromagnetic impurities) through the feed pipe into the demolding cylinder 10. When the demolding cylinder 10 contains a certain amount of old sand, the feeding of old sand will be stopped. Then, the air pump 55 will spray gas through the micro-holes 54 into the old sand to make the old sand flow in the demolding cylinder 10. At the same time, the servo motor 22 will drive the rotating shaft 20 to rotate the stirring rod 21. When the stirring rod 21 rotates, it will stir the old sand to achieve demolding. After demolding, the cylinder 52 will lower the circular plate 53 until the surface of the upper circular plate 53 is located on one side of the discharge pipe 11. At this time, the demolded old sand can be discharged. After discharge, the discharged old sand will be further processed.

[0047] When installing the stirring rod 21, first position the bottom end of the T-shaped rod 44 at the top of the annular plate 40. Then, insert the protrusion 41 into the annular plate 40. After it is fully inserted, the bottom end of the T-shaped rod 44 will pass through the through hole 42 and be inserted into the positioning groove 43 by the elastic force of the spring 45. Thus, the stirring rod 21 can be installed.

[0048] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pneumatic regenerating device for resin sand production line, comprising a stripping cylinder (10), a discharge pipe (11) is fixedly installed on the bottom end side wall of the stripping cylinder (10), and a cylinder cover (12) is arranged on the top of the stripping cylinder (10), characterized in that, The cylinder cover (12) is provided with a stirring assembly for stirring the old sand in the demolding cylinder (10), and the bottom end of the demolding cylinder (10) is provided with an airflow assembly for airflow impact on the old sand in the demolding cylinder (10). The stirring assembly includes: A rotating shaft (20) is rotatably connected to the middle part of the cylinder cover (12) via a bearing; A stirring rod (21) is detachably connected to the rotating shaft (20) via a connecting assembly.

2. A pneumatic regenerating device for a resin sand production line according to claim 1, characterized in that, A servo motor (22) is fixedly installed on the top of the cylinder cover (12), and the output shaft of the servo motor (22) is fixedly connected to the rotating shaft (20).

3. The pneumatic regenerating device for resin sand production line according to claim 1, characterized in that, The outer side of the stirring rod (21) is provided with a wear-resistant layer (30) to improve the wear resistance of the stirring rod (21).

4. The pneumatic regeneration device for a resin sand production line according to claim 1, characterized in that, The connection component includes: An annular plate (40) is fixedly mounted on a rotating shaft (20); A protrusion (41) is fixedly installed on one end of the stirring rod (21) and inserted into the annular plate (40).

5. The pneumatic regeneration device for a resin sand production line according to claim 4, characterized in that, The connection component also includes: A through hole (42) is formed in the protrusion (41); A positioning groove (43) is provided at the bottom end of the annular plate (40) located below the through hole (42).

6. The pneumatic regeneration device for a resin sand production line according to claim 5, characterized in that, The connection component also includes: The top end of the annular plate (40) above the through hole (42) is slidably connected to the T-shaped rod (44), and the bottom end of the T-shaped rod (44) passes through the through hole (42) and is inserted into the positioning groove (43); A spring (45) is fitted onto a T-shaped rod (44), and the two ends of the spring (45) are fixedly connected to the ends of the annular plate (40) and the T-shaped rod (44), respectively.

7. The pneumatic regeneration device for a resin sand production line according to claim 1, characterized in that, The airflow assembly includes: Support rods (50) are fixedly installed on both sides of the bottom end of the demolding cylinder (10); A support plate (51) is fixedly installed between two sets of support rods (50); Cylinder (52), which is fixedly mounted on the top of support plate (51).

8. The pneumatic regeneration device for a resin sand production line according to claim 7, characterized in that, The airflow assembly also includes: The inner cavity of the demolding cylinder (10) is slidably connected to two sets of circular plates (53), and several connecting rods are provided between the two sets of circular plates (53). The piston rod of the cylinder (52) is fixedly installed on the lower circular plate (53) through the connecting block. Micropores (54), the upper circular plate (53) has a plurality of micropores (54); Air pump (55), several air pumps (55) are fixedly installed on the top of the support plate (51); A hose (56) is fixedly installed on the air outlet of the air pump (55), and one end of the hose (56) is fixedly installed on the circular plate (53) below.

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