Servo pushing and buffering device for box molding line

By precisely controlling the pushing speed and force of the sand box molding line through the servo pusher device, the problems of sand box shaking and impact force in traditional devices are solved, thereby improving production efficiency and equipment life.

CN224115121UActive Publication Date: 2026-04-14CHANGZHOU FONDARC CLAY SAND FOUNDRY MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU FONDARC CLAY SAND FOUNDRY MASCH CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional box molding line pushers have difficulty in accurately controlling the pushing speed and force, which causes the sand box to shake and collide, affecting the quality of molding sand and aggravating equipment wear.

Method used

It adopts a servo-driven pusher device, which uses a motor to drive the gear to rotate and move the rack. Combined with a buffer module and a pusher plate, it can precisely control the pushing speed and force, and absorb the impact force when the sand box arrives.

Benefits of technology

It improved the production progress and product quality of the box molding line, reduced damage to sand boxes and equipment, and extended the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a servo pushing and buffering device for a box molding line, which comprises a production plate and a buffering plate arranged on the upper surface of the production plate in a sliding manner, and a pushing assembly for stably pushing a sand box to move is arranged on the side surface of the production plate; the pushing assembly comprises a supporting block, a rack, a driving gear, a limiting module and a buffering module, the supporting block is fixedly arranged on the upper surface of the production plate, the driving gear is rotationally arranged on one side of the supporting block through a rotating column, and the rack is engaged with the driving gear; the motor drives the driving gear to rotate through the rotating column, and the driving gear drives the rack to move through meshing, so that the pushing speed and force are accurately controlled according to the rotating speed of the motor, the production progress and the product quality of the box molding line are improved, and meanwhile, the sand box is pushed to move through cooperation of the buffer module and the pushing plate; therefore, impact force generated when the sand box is conveyed in place is effectively absorbed, damage to the sand box and equipment is reduced, and the service life of the whole equipment is prolonged.
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Description

Technical Field

[0001] This utility model relates to the technical field of box-shaped molding line equipment, specifically a servo push-and-slow device for box-shaped molding lines. Background Technology

[0002] In casting production, sand box molding lines are one of the commonly used pieces of equipment. Their operation involves multiple stages, including sand box handling and molding. During sand box handling, the sand boxes need to be accurately pushed and cushioned to ensure the stable operation of the molding line and to prevent the compactness of the molding sand inside the sand box from being affected.

[0003] Traditional box molding line pushing devices mostly employ simple mechanical structures, such as cylinder pushing. This method makes it difficult to precisely control the pushing speed and force during the pushing process, easily causing the sand box to shake and collide, affecting not only the quality of the molding sand inside the sand box but also potentially damaging the sand box and the equipment. Furthermore, traditional devices are insufficient in terms of cushioning, failing to effectively absorb the impact force when the sand box is pushed into place, further exacerbating equipment wear and increasing the failure rate. Therefore, we need to propose a servo-driven pushing and buffering device for box molding lines. Utility Model Content

[0004] The purpose of this utility model is to provide a servo pusher for a box molding line. The motor drives the drive gear to rotate through the rotating column. The drive gear drives the rack to move through meshing. The pushing speed and force are precisely controlled according to the speed of the motor, thereby improving the production progress and product quality of the box molding line. At the same time, the sand box is moved by the cooperation of the buffer module and the push plate, thereby effectively absorbing the impact force when the sand box is delivered to the position, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a servo pusher device for a box molding line, comprising a production plate and a buffer plate slidably disposed on the upper surface of the production plate, wherein a pusher component for smoothly pushing the sand box is disposed on the side of the production plate;

[0006] The pushing component includes a support block, a rack, a drive gear, a limiting module, and a buffer module;

[0007] The support block is fixedly mounted on the upper surface of the production plate, the drive gear is rotatably mounted on one side of the support block via a rotating column, the rack is fixedly mounted on the side of the buffer plate near the drive gear and meshes with the drive gear, and the buffer module is mounted on the side of the buffer plate away from the rack.

[0008] Preferably, the buffer module includes a push plate, buffer springs, and positioning rods. Several sets of buffer springs are provided, and the several sets of buffer springs are provided between the buffer plate and the push plate. Two sets of positioning rods are provided, and the two sets of positioning rods are fixedly provided on the side of the push plate near the buffer plate. The two sets of positioning rods slide through the buffer plate.

[0009] Preferably, the limiting module includes a connecting plate, a limiting sleeve, a support plate, a connecting column, and an auxiliary structure. The support plate is fixedly connected to the production plate through the connecting plate. The limiting sleeve is bolted to the side of the support plate near the production plate. The connecting column is fixedly disposed on the side of the rack near the support plate and is slidably disposed inside the limiting sleeve.

[0010] Preferably, a sliding plate is fixedly provided at one end of the connecting column near the support plate, a sliding groove corresponding to the sliding plate is provided inside the limiting sleeve, and a snap-fit ​​groove corresponding to the connecting column is provided at one end of the limiting sleeve away from the support plate, and the sliding groove and the snap-fit ​​groove are connected.

[0011] Preferably, the auxiliary structure includes a movable rod, a mounting plate, and a conical pair of wheels. The mounting plate is bolted to the side of the support block near the drive gear. The rotating column rotatably passes through the mounting plate. The conical pair of wheels is rotatably disposed on the side of the mounting plate near the drive gear. The movable rod is fixedly disposed on the upper surface of the rack, and the upper surface of the movable rod is provided with a limiting groove corresponding to the conical pair of wheels.

[0012] Preferably, a motor is bolted to the side of the support block away from the drive gear, the rotating column rotates through the support block, and the end of the rotating column away from the drive gear is keyed to the output end of the motor.

[0013] Preferably, each of the two sets of positioning rods is provided with a snap-fit ​​plate on the side away from the push plate, and the two sets of snap-fit ​​plates are located on the side of the buffer plate away from the push plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention uses a motor to drive a rotating column to rotate a drive gear, which in turn drives a rack to move. This allows for precise control of the pushing speed and force based on the motor's rotation speed, thereby improving the production progress and product quality of the sand box molding line. At the same time, the combination of a buffer module and a push plate to move the sand box effectively absorbs the impact force when the sand box is delivered, reducing damage to the sand box and equipment and extending the overall service life of the equipment.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an exploded view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the installation of the sliding plate of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0021] In the diagram: 1. Production plate; 2. Connecting plate; 3. Limiting sleeve; 4. Support plate; 5. Moving rod; 6. Limiting groove; 7. Support block; 8. Buffer plate; 9. Push plate; 10. Buffer spring; 11. Positioning rod; 12. Snap-fit ​​plate; 13. Sliding plate; 14. Connecting column; 15. Motor; 16. Mounting plate; 17. Rack; 18. Conical wheel pair; 19. Drive gear; 20. Rotating column. Detailed Implementation

[0022] 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.

[0023] This utility model provides: a servo-driven push-and-drift device for box molding lines, such as... Figures 1-4As shown, the system includes a production plate 1 and a buffer plate 8 slidably disposed on the upper surface of the production plate 1. A pushing assembly for smoothly moving the sand box is provided on the side of the production plate 1. The pushing assembly includes a support block 7, a rack 17, a drive gear 19, a limit module, and a buffer module. A motor 15 is bolted to the side of the support block 7 away from the drive gear 19. The motor 15 can be a 57 series stepper motor, or a Leadshine DM542 stepper motor. The stepper motor driver controls the start and stop of the motor 15. The power supply for the motor 15 is located on the side of the production plate 1 and connected to the motor 15 via a line passing through the production plate 1. The rotating column 20 rotates through the support block 7, and the end of the rotating column 20 away from the drive gear 19 is keyed to the output end of the motor 15. The support block 7 is fixedly mounted on the upper surface of the production plate 1. The drive gear 19 is rotatably mounted on one side of the support block 7 via the rotating column 20. The rack 17 is fixedly mounted on the side of the buffer plate 8 near the drive gear 19 and meshes with the drive gear 19. The buffer module is located on the side of the buffer plate 8 away from the rack 17. The motor 15 drives the drive gear 19 to rotate via the rotating column 20. When the drive gear 19 rotates, it meshes with the rack 17, causing it to move. This, in turn, moves the sand box via the buffer plate 8 and the push plate 9. The speed and force of pushing the sand box are controlled by adjusting the rotation speed of the drive gear 19, thereby improving the production progress and product quality of the sand box molding line.

[0024] Preferably, the buffer module includes a push plate 9, buffer springs 10, and positioning rods 11. Several sets of buffer springs 10 are arranged between the buffer plate 8 and the push plate 9. Two sets of positioning rods 11 are fixedly arranged on the side of the push plate 9 closest to the buffer plate 8. The two sets of positioning rods 11 slide through the buffer plate 8. A locking plate 12 is provided on the side of each positioning rod 11 away from the push plate 9, and the two locking plates 12 are located on the side of the buffer plate 8 away from the push plate 9. The two sets of positioning rods 11 prevent the push plate from being pushed... The push plate 9 tilts during movement, ensuring its stability. Simultaneously, the locking plate 12 is larger than the positioning rod 11, preventing the positioning rod 11 from detaching from the buffer plate 8, further guaranteeing stability during movement. Furthermore, several sets of buffer springs 10 are installed between the buffer plate 8 and the push plate 9 to effectively absorb the impact force when the sand box is delivered, reducing damage to the sand box and equipment, and extending the overall equipment lifespan. A rubber pad is also provided on the side of the push plate 9 that contacts the sand box, further enhancing the buffering effect.

[0025] Furthermore, the limiting module includes a connecting plate 2, a limiting sleeve 3, a support plate 4, a connecting column 14, and an auxiliary structure. The support plate 4 is fixedly connected to the production plate 1 through the connecting plate 2. The limiting sleeve 3 is bolted to the side of the support plate 4 near the production plate 1. The connecting column 14 is fixedly set on the side of the rack 17 near the support plate 4. The connecting column 14 is slidably set inside the limiting sleeve 3. The limiting sleeve 3 is installed on one side of the production plate 1 through the connecting plate 2 and the support plate 4. The connecting column 14 is connected to the rack 17 to ensure that the connecting column 14 moves inside the limiting sleeve 3 at the same time as the rack 17 moves.

[0026] Furthermore, a sliding plate 13 is fixedly installed at one end of the connecting column 14 near the support plate 4. A sliding groove corresponding to the sliding plate 13 is opened inside the limiting sleeve 3. A snap-fit ​​groove corresponding to the connecting column 14 is opened at the end of the limiting sleeve 3 away from the support plate 4. The sliding groove and the snap-fit ​​groove are connected. The sliding groove ensures that the sliding plate 13 can slide smoothly inside the limiting sleeve 3. The snap-fit ​​groove prevents the sliding plate 13 and the connecting column 14 from being completely separated from the limiting sleeve 3. When the rack 17 moves, the sliding plate 13 and the connecting column 14 slide inside the limiting sleeve 3, thereby ensuring that the rack 17 will not tilt during the movement.

[0027] Specifically, the auxiliary structure includes a moving rod 5, a mounting plate 16, and a conical pair of wheels 18. The mounting plate 16 is bolted to the support block 7 on the side near the drive gear 19. The rotating column 20 rotates through the mounting plate 16. The conical pair of wheels 18 is rotatably mounted on the side of the mounting plate 16 near the drive gear 19. The moving rod 5 is fixedly mounted on the upper surface of the rack 17, and the upper surface of the moving rod 5 is provided with a limiting groove 6 corresponding to the conical pair of wheels 18. The conical pair of wheels 18 is configured as two frustum cones facing away from each other. When the moving rod 5 moves with the rack 17, the conical pair of wheels 18 are engaged in the limiting groove 6 and rotate, thereby limiting the moving rod 5 and further ensuring the stability of the rack 17 during movement.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A servo-driven push-and-drift device for a box molding line, characterized in that, include: The production plate (1) and the buffer plate (8) are slidably disposed on the upper surface of the production plate (1). The side of the production plate (1) is provided with a pushing component for smoothly pushing the sand box to move. The pushing component includes a support block (7), a rack (17), a drive gear (19), a limiting module, and a buffer module; The support block (7) is fixedly mounted on the upper surface of the production plate (1), the drive gear (19) is rotatably mounted on one side of the support block (7) via the rotating column (20), the rack (17) is fixedly mounted on the side of the buffer plate (8) close to the drive gear (19), and the rack (17) meshes with the drive gear (19), and the buffer module is mounted on the side of the buffer plate (8) away from the rack (17).

2. The servo push-and-drift device for a box molding line according to claim 1, characterized in that: The buffer module includes a push plate (9), a buffer spring (10), and a positioning rod (11). The buffer spring (10) is provided in several sets, and the several sets of buffer springs (10) are provided between the buffer plate (8) and the push plate (9). The positioning rod (11) is provided in two sets, and the two sets of positioning rods (11) are fixedly provided on the side of the push plate (9) near the buffer plate (8). The two sets of positioning rods (11) slide through the buffer plate (8).

3. A servo push-and-drift device for a box molding line according to claim 2, characterized in that: The limiting module includes a connecting plate (2), a limiting sleeve (3), a support plate (4), a connecting column (14), and an auxiliary structure. The support plate (4) is fixedly connected to the production plate (1) through the connecting plate (2). The limiting sleeve (3) is bolted to the side of the support plate (4) near the production plate (1). The connecting column (14) is fixedly set on the side of the rack (17) near the support plate (4). The connecting column (14) is slidably set inside the limiting sleeve (3).

4. A servo push-and-drift device for a box molding line according to claim 3, characterized in that: A sliding plate (13) is fixedly provided at one end of the connecting column (14) near the support plate (4). A sliding groove corresponding to the sliding plate (13) is opened inside the limiting sleeve (3). A snap-fit ​​groove corresponding to the connecting column (14) is opened at one end of the limiting sleeve (3) away from the support plate (4). The sliding groove and the snap-fit ​​groove are connected.

5. A servo push-and-drift device for a box molding line according to claim 3, characterized in that: The auxiliary structure includes a moving rod (5), a mounting plate (16), and a conical pair of wheels (18). The mounting plate (16) is bolted to the side of the support block (7) near the drive gear (19). The rotating column (20) rotates through the mounting plate (16). The conical pair of wheels (18) is rotatably positioned on the side of the mounting plate (16) near the drive gear (19). The moving rod (5) is fixedly mounted on the upper surface of the rack (17), and the upper surface of the moving rod (5) is provided with a limiting groove (6) corresponding to the conical pair of wheels (18).

6. A servo push-and-drift device for a box molding line according to claim 1, characterized in that: The support block (7) is bolted to a motor (15) on the side away from the drive gear (19). The rotating column (20) rotates through the support block (7), and the end of the rotating column (20) away from the drive gear (19) is keyed to the output end of the motor (15).

7. A servo push-and-drift device for a box molding line according to claim 2, characterized in that: Both sets of positioning rods (11) are provided with snap-fit ​​plates (12) on the side away from the push plate (9), and both sets of snap-fit ​​plates (12) are located on the side of the buffer plate (8) away from the push plate (9).