Vibrating type sand cleaning machine for plate casting

Abstract

The utility model discloses a vibration type plate type casting sand cleaning machine, including base and support plate, support plate is fixed on base top right side, the inside top end of base is integrally provided with the guide hole, and inside the guide hole left and right side is connected with the slide block in a sliding mode. Through the mechanical linkage design, only the motor needs to be started, the rotating rod and the eccentric wheel at the position of the rotating shaft can conduct vibration type beating treatment on the two faces of a plate casting at the same time, the sand removing efficiency and effect of the plate casting are improved, and in addition, removed sand grains fall into the box body through the discharging hole. By means of a soft contact mode, when the eccentric wheel rotates, the eccentric wheel drives the sliding pin and the ball to hit the surface of the plate type casting, the ball drives the sliding pin to move in the direction of the guide groove through the counter-acting force of the casting, then the spring deforms, and the ball softly hit the casting through the resilience force of the spring; and the situation that the casting is damaged due to the fact that the striking force is too large is prevented, and the casting is protected.

Description

Technical Field

[0001] This utility model relates to the field of sand cleaning machine technology, specifically a vibratory sand cleaning machine for plate castings. Background Technology

[0002] Sand casting refers to casting castings using cores made of molding sand in a mold. Because the molding materials used in sand casting are inexpensive and readily available, and the mold making is simple, it is suitable for single-piece production, batch production, and mass production of castings, and has long been a fundamental process in casting production. Most castings can be produced using sand casting. For example, when manufacturing plate castings, a mold and a sand core (also called a sand mold) placed inside the mold can be used to cast a hollow plate casting. After the casting process is completed, the sand mold inside the casting needs to be cleaned out, i.e., sand removal. Currently, most manufacturers use manual cleaning, where workers use wooden mallets to continuously tap the casting, causing the sand mold at the casting location to break into sand particles and fall out. However, this method is time-consuming, labor-intensive, extremely wasteful of manpower, and very inefficient.

[0003] The patent published under announcement number "CN108927509B" is titled "A Vibratory Sand Removal Machine for Plate Castings." The device in this document uses a reciprocating mechanical design to vibrate a striking rod linked to a motor, thereby removing sand from the surface of the plate casting. However, the striking rod in this device can only strike one side of the casting, failing to simultaneously strike both sides, thus reducing the efficiency and effectiveness of sand removal. Based on this, this utility model designs a vibratory sand removal machine for plate castings to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a vibratory sand cleaning machine for plate castings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vibratory sand cleaning machine for plate castings, comprising a base and a support plate, the support plate being fixedly mounted on the top right side of the base, a guide hole integrally provided at the top of the base, sliders slidingly connected on the left and right sides inside the guide hole, a positioning frame fixedly mounted on the top of the sliders, a drive assembly being provided inside the base, the drive assembly including a motor fixedly mounted on the left side outside the base, a rotating shaft fixedly mounted on the right side of the motor, the rotating shaft rotating through the base, a rotating rod being rotatably connected inside the support plate, pulleys being fixedly sleeved on the right side of the rotating shaft and the rotating rod, a toothed belt being provided on the outside of the two pulleys by a tight-fitting arrangement, and an eccentric wheel being fixedly sleeved on the outside of the rotating shaft and the rotating rod.

[0006] Furthermore, the center of the eccentric wheel coincides with the center of the base, and a clearance hole is integrally provided on the top center side of the base, which coincides with the eccentric wheel.

[0007] Furthermore, the rotating rod and the rotating shaft are designed to be parallel to each other, and the eccentric wheel has an integrally formed guide groove inside, with a sliding pin slidingly connected inside the guide groove.

[0008] Furthermore, a spring is fixedly provided on the inner side of the sliding pin, and the end of the spring away from the sliding pin is fixedly connected to the eccentric wheel. The sliding pin is perpendicular to the base.

[0009] Furthermore, a ball bearing, made of hard rubber, is connected to the end of the sliding pin furthest from the spring.

[0010] Furthermore, a connecting rod is rotatably inserted through the upper left side of the base, the connecting rod is threaded through the slider, and the connecting rod is misaligned with the clearance hole.

[0011] Furthermore, the slider on the left and the connecting rod are designed with a left-hand threaded connection, while the slider on the right and the connecting rod are designed with a right-hand threaded connection.

[0012] Furthermore, the top of the positioning frame has threaded pins at both the front and rear ends, and a sliding plate is fixed at the front end of the bottom of the positioning frame, which slides through the base.

[0013] Furthermore, the base has a number of discharge holes integrally formed at its inner top. The discharge holes are through holes, and the discharge holes are staggered with the clearance holes and guide holes.

[0014] Furthermore, a box is provided at the lower end of the base, the distance between the box and the rotating shaft is 20cm, and the box corresponds one-to-one with the discharge hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Through the mechanical linkage design, this utility model can make the rotating rod and the eccentric wheel at the rotating shaft simultaneously vibrate and strike both sides of the plate casting by simply turning on the motor. Thus, by using the device in this application, the sand removal efficiency and effect of the plate casting are improved. In addition, the removed sand particles fall into the box through the discharge hole.

[0017] 2. This utility model uses a soft contact method. When the eccentric wheel rotates, it drives the sliding pin and the ball to strike the surface of the plate casting. The reaction force of the casting causes the ball to drive the sliding pin to move along the direction of the guide groove, thereby deforming the spring. The spring's rebound force causes the ball to strike the casting softly, preventing excessive impact force from damaging the casting and providing protection for the casting. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front perspective view of a vibratory plate casting sand cleaning machine according to the present invention.

[0020] Figure 2 This is a three-dimensional view of the internal structure of the eccentric wheel;

[0021] Figure 3 A 3D view of the slider, connecting rod, positioning frame, and sliding plate;

[0022] Figure 4 A three-dimensional view of the shaft and rotating rod;

[0023] Figure 5 This is a 3D view of the base.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1-Base, 2-Support plate, 3-Guide hole, 4-Slider, 5-Positioning frame, 6-Drive assembly, 601-Motor, 602-Rotating shaft, 603-Rotating rod, 604-Pulley, 605-Geared belt, 606-Eccentric wheel, 7-Lean hole, 8-Guide groove, 9-Sliding pin, 10-Spring, 11-Ball bearing, 12-Connecting rod, 13-Top pin, 14-Slide plate, 15-Discharge hole, 16-Box body. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a vibratory sand cleaning machine for plate castings includes a base 1 and a support plate 2. The support plate 2 is fixedly mounted on the top right side of the base 1. A guide hole 3 is integrally provided at the top of the base 1. Slider blocks 4 are slidably connected on the left and right sides inside the guide hole 3. A positioning frame 5 is fixedly mounted on the top of the slider 4. A drive assembly 6 is provided inside the base 1. The drive assembly 6 includes a motor 601 fixedly mounted on the left side of the base 1. A rotating shaft 602 is fixedly mounted on the right side of the motor 601. The rotating shaft 602 rotates through the base 1. A rotating rod 603 is rotatably connected inside the support plate 2. A pulley 604 is fixedly sleeved on the right side of the rotating shaft 602 and the rotating rod 603. A toothed belt 605 is provided on the outside of the two pulleys 604 by a tight fit. An eccentric wheel 606 is fixedly sleeved on the outside of the rotating shaft 602 and the rotating rod 603.

[0029] The eccentric wheel 606 coincides with the center of the base 1. A clearance hole 7 is integrally formed on the top center side of the base 1, coinciding with the eccentric wheel 606. The operator first inserts the plate-shaped casting into the positioning frame 5 from left to right, positioning the casting between the two eccentric wheels 606. Then, the motor 601 is turned on, driving the rotating shaft 602, which in turn drives the pulley 604, the toothed belt 605, and the rotating rod 603 to rotate. At this time, the two eccentric wheels 606 simultaneously and repeatedly strike the top and bottom surfaces of the casting, thus cleaning the sand. The clearance hole 7 provides rotation space for the eccentric wheel 606.

[0030] Example 2

[0031] like Figure 1 , Figure 3 , Figure 5As shown, the rotating rod 603 and the rotating shaft 602 are designed to be parallel to each other. The eccentric wheel 606 has an integrally formed guide groove 8. A sliding pin 9 is slidably connected inside the guide groove 8. A spring 10 is fixed inside the sliding pin 9. The end of the spring 10 away from the sliding pin 9 is fixedly connected to the eccentric wheel 606. The sliding pin 9 is perpendicular to the base 1. A ball bearing 11 is rotatably connected to the end of the sliding pin 9 away from the spring 10. The ball bearing 11 is made of hard rubber. A connecting rod 12 is rotatably inserted through the upper left side of the base 1. The connecting rod 12 is threaded through the slider 4. The connecting rod 12 is misaligned with the clearance hole 7. The slider 4 on the left side is connected to the connecting rod 12. The connecting rod 12 is designed with a left-hand threaded connection, and the slider 4 on the right side is designed with a right-hand threaded connection to the connecting rod 12. The top and front ends of the positioning frame 5 are threaded with top pins 13. The bottom front end of the positioning frame 5 is fixed with a sliding plate 14, which slides through the base 1. The top of the base 1 is integrally provided with a number of discharge holes 15. The discharge holes 15 are through holes, and the discharge holes 15 are offset from the clearance holes 7 and the guide holes 3. The bottom of the base 1 is provided with a box 16. The distance between the box 16 and the rotating shaft 602 is 20cm. The box 16 and the discharge holes 15 correspond one-to-one.

[0032] According to the operation method in Embodiment 1, the operator can rotate the connecting rod 12. Through the threaded transmission between the connecting rod 12 and the slider 4, the slider 4 drives the positioning frame 5 and the sliding plate 14 to move along the direction of the guide hole 3. That is, the two positioning frames 5 are in a state of moving towards or away from each other, so that the positioning frame 5 can be matched with castings of different lengths. After the casting is placed inside the positioning frame 5, the operator rotates the top pin 13 clockwise, so that the top pin 13 applies a clamping force to the casting, thereby fixing the casting to the positioning frame 5. The connection is stable. When the eccentric wheel 606 rotates, it drives the sliding pin 9 along with the ball bearings 11 to strike the casting. The ball bearings 11 and the casting are in a state of rolling friction. When the ball bearings 11 strike the casting, the reaction force of the casting causes the ball bearings 11 to drive the sliding pin 9 to move along the direction of the guide groove 8, thereby deforming the spring 10. Through the rebound force of the spring 10, the ball bearings 11 deliver a soft strike to the casting, preventing excessive impact force from damaging the casting and providing protection for the casting. In addition, the removed sand particles fall into the box 16 through the discharge hole 15.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vibratory sand cleaning machine for plate castings, comprising a base (1) and a support plate (2), characterized in that: The support plate (2) is fixed to the top right side of the base (1). The top of the base (1) is integrally provided with a guide hole (3). The guide hole (3) is slidably connected to the left and right sides of the left and right sides. The top of the slider (4) is fixed with a positioning frame (5). The base (1) is provided with a drive assembly (6). The drive assembly (6) includes a motor (601) fixed to the left side of the base (1). The right side of the motor (601) is fixed with a rotating shaft (602). The rotating shaft (602) rotates through the base (1). The support plate (2) is connected to a rotating rod (603). The right side of the rotating shaft (602) and the rotating rod (603) is fixedly fitted with a pulley (604). The two pulleys (604) are fitted together with a toothed belt (605) by a tight fit. The outside of the rotating shaft (602) and the rotating rod (603) is fixedly fitted with an eccentric wheel (606). The rotating rod (603) and the rotating shaft (602) are designed to be parallel to each other. The eccentric wheel (606) has an integrally provided guide groove (8), and a sliding pin (9) is slidably connected inside the guide groove (8). A spring (10) is fixedly provided on the inner side of the sliding pin (9). The end of the spring (10) away from the sliding pin (9) is fixedly connected to the eccentric wheel (606). The sliding pin (9) is perpendicular to the base (1). The sliding pin (9) has a ball bearing (11) connected to one end away from the spring (10), and the ball bearing (11) is made of hard rubber material.

2. The sand cleaning machine for casting according to claim 1, wherein: The center of the eccentric wheel (606) coincides with the center of the base (1). The base (1) has an integral clearance hole (7) on the top center side inside, and the clearance hole (7) coincides with the eccentric wheel (606).

3. The sand cleaning machine for casting according to claim 1, wherein: A connecting rod (12) is rotatably inserted through the upper left side of the base (1). The connecting rod (12) is threaded through the slider (4). The connecting rod (12) and the clearance hole (7) are misaligned.

4. The sand cleaning machine for casting according to claim 3, wherein: The slider (4) on the left and the connecting rod (12) are designed with a left thread connection, while the slider (4) on the right and the connecting rod (12) are designed with a right thread connection.

5. The sand cleaning machine for casting according to claim 1, wherein: The positioning frame (5) has a top pin (13) threaded through its front and rear ends. The positioning frame (5) has a sliding plate (14) fixed at its bottom front end. The sliding plate (14) slides through the base (1).

6. The vibratory sand cleaning machine for plate castings according to claim 1, characterized in that: The base (1) has a number of discharge holes (15) integrally provided at the top of its interior. The discharge holes (15) are through holes, and the discharge holes (15) are offset from the clearance holes (7) and the guide holes (3).

7. The sand cleaning machine for casting according to claim 1, wherein: The lower part of the base (1) is provided with a box (16), the distance between the box (16) and the rotating shaft (602) is 20cm, and the box (16) and the discharge hole (15) correspond one to one.

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