A sand core breaking device

Abstract

The utility model discloses a sand core crushing device, including the pulverization bucket, the upper portion of pulverization bucket is connected with the feeding cylinder, and the middle position of feeding cylinder is installed with the mounting disc, and the outer periphery of mounting disc is connected with a plurality of partition blocks, and the other end of partition block is connected with the inner wall of feeding cylinder, and the mounting disc is installed with the drive motor, and the drive motor is driven to be connected with the discharge station, and the discharge station is located in the feeding cylinder, and the pulverization bucket includes the pulverization main cavity, the pulverization side cavity and the discharge chamber, and the pulverization main cavity, the pulverization side cavity, the discharge chamber are linked together, and the discharge station lower part is connected with the crushing roller, and the crushing roller includes the pulverization main roller and the pulverization side roller, and the pulverization main roller sets up in the pulverization main cavity, and the pulverization side roller sets up in the pulverization side cavity, and the distance between the pulverization main cavity and the outer wall of pulverization main roller gradually reduces from top to bottom.

Description

Technical Field

[0001] This utility model relates to the field of crushing equipment technology, and more specifically, to a sand core crushing device. Background Technology

[0002] With rising living standards, the demand for large-displacement, personalized motorcycle wheels is increasing. To reduce product weight, these products are typically designed with hollow hubs formed from sand cores. Sand core forming is prone to producing defective products, and a large amount of residue is generated after casting and demolding. These sand cores can be crushed and mixed with new coated sand in a certain proportion to create sand cores that still meet usage requirements, thus greatly improving the utilization rate of coated sand. Due to the large quantity of sand cores used, sand core crushing equipment is needed to assist workers in crushing the sand cores. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a sand core crushing device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a sand core crushing device, including a crushing barrel, a feeding cylinder connected to the upper part of the crushing barrel, an installation plate installed in the middle of the feeding cylinder, a number of partitions connected to the outer periphery of the installation plate, the other end of the partitions connected to the inner wall of the feeding cylinder, a drive motor installed on the installation plate, the drive motor driving a discharge platform connected to the discharge platform located inside the feeding cylinder, the crushing barrel including a main crushing chamber, a secondary crushing chamber and a discharge chamber, the main crushing chamber, the secondary crushing chamber and the discharge chamber being connected, a crushing roller connected to the lower part of the discharge platform, the crushing roller including a main crushing roller and a secondary crushing roller, the main crushing roller being set in the main crushing chamber, the secondary crushing roller being set in the secondary crushing chamber, the distance between the outer wall of the main crushing chamber and the main crushing roller gradually decreasing from top to bottom.

[0006] Furthermore, several protrusions are installed on the inner wall of the main crushing chamber, and the protrusions are evenly distributed in an array on the main crushing chamber. Several protrusions are installed on the outer periphery of the main crushing roller.

[0007] Furthermore, a feeding tray is connected to the upper part of the feeding platform, the upper end of the feeding tray is set against the lower end of the partition, and a feeding port is opened on the feeding tray.

[0008] Furthermore, a guide cover is provided on the upper part of the mounting plate, and the drive motor is located inside the guide cover.

[0009] Furthermore, a connecting rod is connected to the lower end of the crushing auxiliary roller, and a filter screen is detachably installed on the connecting rod.

[0010] Furthermore, the filter screen includes an installation block, an installation sleeve is installed on the lower part of the installation block, a locking pin is inserted through the installation sleeve, a stop block is connected to the outer end of the locking pin, a spring is sleeved on the locking pin, one end of the spring is connected to the inner side of the stop block, the other end of the spring is connected to the outer side of the installation sleeve, and a slot is opened on the side of the connecting rod, and part of the locking pin can be inserted into the slot.

[0011] Furthermore, several positioning strips are connected to the outside of the connecting rod. The positioning strips are arranged along the axial direction of the connecting rod, and positioning grooves that cooperate with the positioning strips are opened on the inner wall of the mounting sleeve.

[0012] Furthermore, a guide ring is installed on the inner wall of the feeding chamber, with the outer end of the guide ring connected to the inner wall of the feeding chamber and the inner end of the guide ring extending into the filter screen.

[0013] The beneficial effect of this application is that it can effectively crush sand cores and screen the crushed material to obtain material particles that meet the particle size requirements. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one structure of the core crushing device in this embodiment;

[0015] Figure 2 This is a cross-sectional view of the core crushing device in this embodiment;

[0016] Figure 3 This is a bottom view of the filter screen in this embodiment;

[0017] Figure 4 for Figure 2 Enlarged diagram of point A in the middle.

[0018] Reference numerals: 1. Crushing barrel; 2. Feeding cylinder; 3. Mounting plate; 4. Guide cover; 5. Drive motor; 6. Partition block; 7. Discharge plate; 8. Discharge port; 9. Discharge platform; 10. Main crushing roller; 11. Secondary crushing roller; 12. Main crushing chamber; 13. Secondary crushing chamber; 14. Protrusion; 15. Discharge chamber; 16. Protrusion; 17. Connecting rod; 18. Filter screen; 19. Guide ring; 20. Receiving hopper; 21. Mounting block; 22. Mounting sleeve; 23. Positioning strip; 24. Positioning groove; 25. Inlet section; 26. Locking pin; 27. Stop block; 28. Spring; 29. ​​Slot; 30. Inclined surface. 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. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-4 As shown, a sand core crushing device includes a crushing barrel 1, a feeding cylinder 2 connected to the upper part of the crushing barrel 1, an installation plate 3 installed in the middle of the feeding cylinder 2, and several partitions 6 connected to the outer periphery of the installation plate 3. The other end of the partitions 6 is connected to the inner wall of the feeding cylinder 2. A drive motor 5 is installed on the installation plate 3, and the drive motor 5 drives a discharge platform 9 connected to it. The discharge platform 9 is located inside the feeding cylinder 2 and is frustum-shaped. The diameter of the upper end of the discharge platform 9 is smaller than the diameter of the lower end. The sand cores falling on the discharge platform 9 will slide down along the outer periphery of the discharge platform 9 and reach the area between the main crushing chamber 12 and the main crushing roller 10. The crushing barrel 1 includes a main crushing chamber 12, a secondary crushing chamber 13, and a discharge chamber 15. The main crushing chamber 12, the secondary crushing chamber 13, and the discharge chamber 15 are connected to each other, and the discharge chamber 15 is connected to the bottom end of the crushing barrel 1. The main crushing chamber 12 is frustum-shaped, with the upper diameter larger than the lower diameter. The secondary crushing chamber 13 is cylindrical. A crushing roller is connected to the lower part of the feeding platform 9. The crushing roller includes a main crushing roller 10 and a secondary crushing roller 11. The main crushing roller 10 is located inside the main crushing chamber 12, and the secondary crushing roller 11 is located inside the secondary crushing chamber 13. The main crushing roller 10 is frustum-shaped, with the upper diameter larger than the lower diameter. Because the material is continuously crushed during its descent, the distance between the outer walls of the main crushing chamber 12 and the main crushing roller 10 is set to gradually decrease from top to bottom, thus ensuring continuous crushing of the gradually shrinking sand core. Several protrusions 14 are installed on the inner wall of the main crushing chamber 12, and these protrusions 14 are evenly distributed in an array on the main crushing chamber 12. Several protrusions 16 are installed on the outer periphery of the main crushing roller 10. During the rotation of the main crushing roller 10, the protrusions 16 and 14 act on the sand core, squeezing the sand core and thus crushing it.

[0021] Both the inner wall of the crushing chamber 13 and the outer wall of the crushing roller 11 are provided with raised strips. The raised strips on the inner wall of the crushing chamber 13 are arranged along the axial direction of the crushing chamber 13, and the raised strips on the outer wall of the crushing roller 11 are arranged along the axial direction of the crushing roller 11. The sand core entering between the crushing chamber 13 and the crushing roller 11 is squeezed again by the raised strips for secondary crushing, ensuring the crushing effect.

[0022] The upper part of the feeding platform 9 is connected to the feeding disc 7, and the upper end of the feeding disc 7 is set against the lower end of the partition block 6. The feeding disc 7 has a feeding port 8, through which the sand core can fall. When the feeding platform 9 rotates, it drives the feeding disc 7 to rotate, thereby changing the position of the feeding port 8, so that the sand core falls into the crushing barrel 1 from different positions, thus making full use of the different positions of the crushing main roller 10 and the crushing main chamber 12 for crushing.

[0023] Furthermore, a guide cover 4 is provided on the upper part of the mounting plate 3, and the drive motor 5 is located inside the guide cover 4. The guide cover 4 can both cover and protect the drive motor 5, and guide the poured sand core, so that the middle sand core moves outward, ensuring that the sand core can fall through the discharge port 8.

[0024] Furthermore, a connecting rod 17 is connected to the lower end of the crushing auxiliary roller 11, and a filter screen 18 is detachably installed on the connecting rod 17. The bottom and sides of the filter screen 18 are both made of filter mesh, capable of filtering materials. The crushed material falls onto the filter screen 18, and the connecting rod 17 drives the filter screen 18 to rotate with the main crushing roller 10, screening the material and filtering out particles that meet the particle size requirements. During rotation, some material can be thrown to the side of the filter screen 18, thus achieving filtration. After a period of use, the filter screen 18 should be replaced to prevent material from clogging the filter holes and causing screening failure.

[0025] Furthermore, the filter screen 18 includes a mounting block 21, a mounting sleeve 22 is mounted on the lower part of the mounting block 21, a locking pin 26 is provided on the mounting sleeve 22, a stop block 27 is connected to the outer end of the locking pin 26, a spring 28 is sleeved on the locking pin 26, one end of the spring 28 is connected to the inner side of the stop block 27, and the other end of the spring 28 is connected to the outer side of the mounting sleeve 22. A slot 29 is provided on the side of the connecting rod 17, and part of the locking pin 26 can be inserted into the slot 29.

[0026] Furthermore, several positioning strips 23 are connected to the outer side of the connecting rod 17. The positioning strips 23 are arranged along the axial direction of the connecting rod 17, and the inner wall of the mounting sleeve 22 is provided with positioning grooves 24 that cooperate with the positioning strips 23. The positioning strips 23 and positioning grooves 24 are used to position the mounting sleeve 22 on the connecting rod 17, so that the locking pins 26 on the mounting sleeve 22 correspond to the locking grooves 29 on the connecting rod 17, thereby ensuring that the end of the locking pins 26 can be inserted into the locking grooves 29.

[0027] Furthermore, a guide ring 19 is installed on the inner wall of the feeding chamber 15. The outer end of the guide ring 19 is connected to the inner wall of the feeding chamber 15, and the inner end of the guide ring 19 extends into the filter screen 18. The guide ring 19 guides the falling material to ensure that all the crushed material can enter the filter screen 18 for screening.

[0028] Furthermore, the lower end of the connecting rod 17 is connected to an inlet section 25, which is frustoconical in shape. The diameter of the lower end of the inlet section 25 is smaller than that of the upper end. The upper part of the inner end of the locking pin 26 is provided with an inclined surface 30, which is inclined upward and outward. During the process of the mounting sleeve 22 being fitted onto the connecting rod 17, the inclined surface 30 abuts against the outer wall of the inlet section 25. As the mounting sleeve 22 moves upward along the connecting rod 17, the cooperation between the inclined surface 30 and the inlet section 25 pushes the locking pin 26 outward, and the end of the locking pin 26 moves against the outer wall of the inlet section 25 to the outer wall of the connecting rod 17. When the end of the locking pin 26 reaches the position of the slot 29, it is inserted into the slot 29 under the action of the spring 28, thereby fixing the filter screen 18 onto the connecting rod 17. The filter screen 18 rotates synchronously with the connecting rod 17, screening the material falling into the filter screen 18 and screening out the material with a suitable particle size. A receiving hopper 20 is installed below the filter screen 18. The receiving hopper 20 is used to receive the screened material.

[0029] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A sand core crushing device, characterized in that, The device includes a crushing barrel (1), a feeding cylinder (2) connected to the upper part of the crushing barrel (1), an installation plate (3) installed in the middle of the feeding cylinder (2), a plurality of partitions (6) connected to the outer periphery of the installation plate (3), the other end of the partitions (6) being connected to the inner wall of the feeding cylinder (2), a drive motor (5) installed on the installation plate (3), the drive motor (5) driving a discharge platform (9) connected to the installation plate (2), the discharge platform (9) being located inside the feeding cylinder (2), and the crushing barrel (1) including a main crushing chamber (12). The main crushing chamber (12), the secondary crushing chamber (13), and the feeding chamber (15) are connected. The lower part of the feeding platform (9) is connected to a crushing roller. The crushing roller includes a main crushing roller (10) and a secondary crushing roller (11). The main crushing roller (10) is located in the main crushing chamber (12), and the secondary crushing roller (11) is located in the secondary crushing chamber (13). The distance between the outer walls of the main crushing chamber (12) and the main crushing roller (10) gradually decreases from top to bottom.

2. The sand core crushing device according to claim 1, characterized in that, A number of protrusions (14) are installed on the inner wall of the main crushing chamber (12). The protrusions (14) are evenly distributed in an array on the main crushing chamber (12). A number of protrusions (16) are installed on the outer periphery of the main crushing roller (10).

3. The sand core crushing device according to claim 1, characterized in that, The upper part of the feeding platform (9) is connected to the feeding tray (7), the upper end of the feeding tray (7) is set against the lower end of the partition block (6), and the feeding tray (7) is provided with a feeding port (8).

4. The sand core crushing device according to claim 1, characterized in that, The upper part of the mounting plate (3) is provided with a guide cover (4), and the drive motor (5) is located inside the guide cover (4).

5. A sand core crushing device according to claim 1, characterized in that, The lower end of the crushing auxiliary roller (11) is connected to a connecting rod (17), and a filter screen (18) is detachably installed on the connecting rod (17).

6. A sand core crushing device according to claim 5, characterized in that, The filter screen (18) includes a mounting block (21), and a mounting sleeve (22) is installed on the lower part of the mounting block (21). A locking pin (26) is provided on the mounting sleeve (22). A stop block (27) is connected to the outer end of the locking pin (26). A spring (28) is sleeved on the locking pin (26). One end of the spring (28) is connected to the inner side of the stop block (27), and the other end of the spring (28) is connected to the outer side of the mounting sleeve (22). A slot (29) is provided on the side of the connecting rod (17), and part of the locking pin (26) can be inserted into the slot (29).

7. A sand core crushing device according to claim 6, characterized in that, The connecting rod (17) is connected to a number of positioning strips (23) on the outside. The positioning strips (23) are arranged along the axial direction of the connecting rod (17). The inner wall of the mounting sleeve (22) is provided with positioning grooves (24) that cooperate with the positioning strips (23).

8. A core crushing device according to any one of claims 5-7, characterized in that, A guide ring (19) is installed on the inner wall of the feeding chamber (15). The outer end of the guide ring (19) is connected to the inner wall of the feeding chamber (15), and the inner end of the guide ring (19) extends into the filter screen (18).

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