A two-way positioning mechanism for a styling line trolley

By setting up a power connection mechanism and an extension mechanism on the styling line trolley, bidirectional movement and expanded loading space are achieved by using an electric motor and bevel gear meshing. This solves the problems of power supply continuity and safety of existing trolleys and improves the flexibility and ease of maintenance of the styling line trolley.

CN224463652UActive Publication Date: 2026-07-07WEIHAI XINDONG MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIHAI XINDONG MASCH CO LTD
Filing Date
2025-04-21
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The existing power supply methods for modeling line trolleys have problems such as limited battery life, troublesome maintenance and low safety. In particular, battery power supply requires regular charging, while sliding contact line power supply has the risk of wear and sparks.

Method used

It adopts a power connection mechanism and an extension mechanism. The electric motor drives the rotating shaft and bevel gear to mesh, causing the threaded rod to rotate and the extension plate to extend to expand the carrying space. It also achieves bidirectional movement through the drive motor. Combined with the battery and ground sliding power connection, it improves safety and maintenance convenience.

Benefits of technology

It enables flexible bidirectional movement of the trolley, expands the carrying space, improves safety and ease of maintenance, while extending the service life of the track and reducing friction damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of shaping line trolley, disclose a trolley two -way positioning mechanism for shaping line, including the frame, the middle part of the lower extreme of frame is provided with the electricity connection mechanism, the electricity connection mechanism includes the electricity pole of hinged connection with the inner top surface of frame, the lower surface fixedly connected with insulating rod of electricity pole, the both sides of insulating rod lower surface are fixedly connected with negative electrode conductive column and positive electrode conductive column respectively, the front end fixedly connected with the hinged plate of inner top surface of frame. In the utility model, through the electricity pole of electric telescopic link extension, the electricity pole is lowered, then makes negative electrode conductive column and second conductive sheet contact conduction, positive electrode conductive column and first conductive sheet contact conduction, then through the connection wire harness makes the current complete closed loop, thereby through the ground sliding electricity connection can effectively improve the convenience of maintenance, and through separating the positive and negative pole, when the article touches the positive pole or negative pole alone, no danger occurs, which effectively improves the safety.
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Description

Technical Field

[0001] This utility model relates to the field of styling line trolleys, and in particular to a bidirectional positioning mechanism for styling line trolleys. Background Technology

[0002] In the foundry industry, the molding line is an automated production line used to manufacture sand molds. The trolley, as an important component of the molding line, is used to carry the sand box and mold plate and move along the molding line to complete the sand mold making, transportation and box assembly processes. In the actual production process, after the trolley moves to the designated process position, it is required to reliably lock and position the trolley. When the sand box is removed from the trolley for box cleaning or other process treatments, the position of the trolley must remain unchanged. Therefore, a two-way positioning mechanism for the trolley in the molding line is proposed.

[0003] Most existing bidirectional positioning molding line trolleys use batteries or overhead sliding contact lines for power during operation. Battery power requires regular charging and has limited range, which increases the weight of the trolley. While sliding contact line power improves range, it is more difficult to maintain and is prone to wear, sparks, and lower safety.

[0004] Therefore, in order to solve the problems existing in the above-mentioned technologies, a trolley for styling lines with bidirectional positioning function is proposed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a bidirectional positioning mechanism for a trolley used in a molding line. Through an extension mechanism, an electric motor drives a rotating shaft and a power bevel gear to rotate. The power bevel gear meshes with a driven bevel gear to rotate a threaded rod, thereby extending the extension plate and expanding the placement space. Then, in conjunction with a drive motor, the mechanism rotates in both directions, enabling bidirectional movement. This improves both flexibility and the trolley's carrying capacity.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A bidirectional positioning mechanism for a trolley used for shaping lines includes a frame. A power connection mechanism is located at the center of the lower end of the frame. The power connection mechanism includes a power rod hinged to the inner top surface of the frame. An insulating rod is fixedly connected to the lower surface of the power rod. Negative and positive conductive posts are fixedly connected to both sides of the lower surface of the insulating rod, respectively. A hinge plate is fixedly connected to the front end of the inner top surface of the frame. An electric telescopic rod is hinged to the inner wall of the hinge plate. A first conductive rail and a second conductive rail are respectively provided on both sides of the lower end of the frame. A first conductive plate is fixedly connected to the inner bottom surface of the first conductive rail, and a second conductive plate is fixedly connected to the inner bottom surface of the second conductive rail.

[0008] An extension mechanism is provided at the upper end of the interior of the frame. The extension mechanism includes multiple extension slots opened on both sides of the upper surface of the frame. An electric motor is fixedly connected to the front outer wall of the frame. The output end of the electric motor passes through the interior of the frame and is fixedly connected to a rotating shaft. Multiple power bevel gears are sleeved on the shaft of the rotating shaft. Threaded rods are provided inside each of the extension slots. One end of each threaded rod passes through the interior of the frame and is fixedly connected to a driven bevel gear. Extension plates are sleeved on the shaft of each threaded rod. Two push rods are fixedly connected to the rear end of the middle of the inner top surface of the frame. Friction blocks are fixedly connected to the output ends of each electric push rod.

[0009] The above technical solution, through the power connection mechanism, not only facilitates the transmission of electricity but also effectively improves safety and enhances the convenience of maintenance and repair.

[0010] Furthermore, a mounting frame is fixedly connected to one inner wall of the frame, and a drive motor is fixedly connected to one outer wall of the mounting frame. The output end of the drive motor passes through the mounting frame and is fixedly connected to a drive gear. A drive shaft is rotatably connected to the front end of the inner walls on both sides of the frame. A drive wheel is fixedly connected to both sides of the drive shaft. A driven gear is fixedly connected to one side of the drive shaft. Multiple support wheels are provided at the rear end of the inner walls on both sides of the frame. The drive gear and the driven gear are meshed together.

[0011] The above technical solution enables convenient bidirectional movement by controlling the drive motor to rotate in both directions. At the same time, the multiple wheels effectively increase the force exerted on the track by the vehicle, extending the service life of the track.

[0012] Furthermore, a support frame is fixedly connected to the inner wall of the rear end of the vehicle frame, and a storage battery is fixedly connected to the upper surface of the support frame. The storage battery is electrically connected to the electric telescopic rod and the positive and negative conductive posts.

[0013] The above technical solution enables the battery to be conveniently replenished while also effectively providing power to the electric telescopic pole when it is not powered on.

[0014] Furthermore, the power bevel gear and the driven bevel gear are meshed together, and the extension plate is provided with threaded grooves inside, and the extension plate is threadedly connected to the threaded rod through the threaded grooves;

[0015] The above technical solution enables the extension plate to be extended as needed via an electric motor.

[0016] Furthermore, connecting wire harnesses are fixedly connected to one outer wall of both the first and second conductive sheets;

[0017] By using the above technical solution, the first conductive sheet and the second conductive sheet are electrically connected through the connecting wire harness, which can effectively complete the power loop and enable the electrical appliances to work normally.

[0018] Furthermore, the upper surface of the frame is provided with an array of multiple grooves;

[0019] The above technical solution can effectively reduce the contact area with the sand box and mold plate, thus avoiding the problem of damage caused by excessive friction during movement.

[0020] Furthermore, the front inner wall and the rear inner wall of the extension groove are both provided with limiting grooves, and the front outer wall and the rear outer wall of the extension plate near the rotation axis slide inside the limiting grooves.

[0021] The above technical solution can effectively limit the extension plate and prevent it from falling off the threaded rod.

[0022] Furthermore, side baffles are fixedly connected to the upper surface of each extension plate;

[0023] With the above technical solution, side baffles are fixedly connected to the upper surface of the extension plate, which can effectively prevent goods from falling from both sides.

[0024] This utility model has the following beneficial effects:

[0025] 1. The present invention proposes a bidirectional positioning mechanism for a trolley used in a molding line. Through the set power connection mechanism, the electric telescopic rod extends and lowers the power pole, so that the negative conductive post contacts the second conductive plate to conduct electricity, and the positive conductive post contacts the first conductive plate to conduct electricity. Then, the current is completely closed-loop through the connecting wire harness. Thus, the ground sliding power connection can effectively improve the convenience of maintenance. At the same time, by separating the positive and negative poles, there is no danger when an object touches the positive or negative pole alone, which can effectively improve safety.

[0026] 2. The present invention proposes a bidirectional positioning mechanism for a trolley used in a molding line. Through the extension mechanism, an electric motor drives a rotating shaft and a power bevel gear to rotate. Then, the power bevel gear meshes with the driven bevel gear to rotate the threaded rod, thereby extending the extension plate and expanding the placement space. Then, in conjunction with the drive motor, it rotates in both directions to enable bidirectional movement, thereby improving flexibility and increasing the trolley's carrying capacity. Attached Figure Description

[0027] Figure 1 This is an isometric view of a bidirectional positioning mechanism for a trolley used for shaping lines, as proposed in this utility model.

[0028] Figure 2 This is a bottom view of a bidirectional positioning mechanism for a trolley used for shaping lines, as proposed in this utility model.

[0029] Figure 3 A cross-sectional view of a two-way positioning mechanism for a trolley used for shaping lines proposed in this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of a two-way positioning mechanism for a trolley used for shaping lines proposed in this utility model;

[0031] Figure 5 This is a top sectional view of the frame of a two-way positioning mechanism for a trolley used for shaping lines, as proposed in this utility model.

[0032] Figure 6 This is a schematic diagram of the structure of the first and second conductive rails in a bidirectional positioning mechanism for a trolley used for a shaping line proposed in this utility model.

[0033] Figure 7 This is a cross-sectional view of the extension plate of a two-way positioning mechanism for a trolley used in shaping lines, as proposed in this utility model.

[0034] Legend:

[0035] 1. Frame; 2. Wheel support; 3. Drive wheel;

[0036] 4. Extension mechanism; 401. Extension plate; 402. Side baffle; 403. Groove; 404. Threaded rod; 405. Limiting groove; 406. Extension groove; 407. Electric motor; 408. Power bevel gear; 409. Rotating shaft; 410. Driven bevel gear; 411. Threaded groove;

[0037] 5. Power connection mechanism; 501. Power pole; 502. Second conductive rail; 503. First conductive rail; 504. Negative conductive post; 505. Insulating rod; 506. Electric telescopic rod; 507. Hinge plate; 508. First conductive sheet; 509. Second conductive sheet; 510. Positive conductive post;

[0038] 6. Mounting frame; 7. Drive motor; 8. Support bracket; 9. Battery; 10. Drive gear; 11. Driven gear; 12. Drive shaft; 13. Connecting harness; 14. Electric push rod; 15. Friction block. Detailed Implementation

[0039] 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.

[0040] One embodiment of this utility model is provided:

[0041] Reference Figure 1 , Figure 3 and Figure 5 :

[0042] A bidirectional positioning mechanism for a trolley used for shaping lines includes a frame 1. A power connection mechanism 5 is provided at the middle of the lower end of the frame 1. The power connection mechanism 5 includes a power rod 501 hinged to the inner top surface of the frame 1. An insulating rod 505 is fixedly connected to the lower surface of the power rod 501. Negative conductive post 504 and positive conductive post 510 are fixedly connected to both sides of the lower surface of the insulating rod 505, respectively. A hinge plate 507 is fixedly connected to the front end of the inner top surface of the frame 1. An electric telescopic rod 506 is hinged to the inner wall of the hinge plate 507. A first conductive rail 503 and a second conductive rail 502 are provided on both sides of the lower end of the frame 1, respectively. A first conductive plate 508 is fixedly connected to the inner bottom surface of the first conductive rail 503, and a second conductive plate 509 is fixedly connected to the inner bottom surface of the second conductive rail 502.

[0043] An extension mechanism 4 is provided at the upper end of the interior of the frame 1. The extension mechanism 4 includes multiple extension slots 406 opened on both sides of the upper surface of the frame 1. An electric motor 407 is fixedly connected to the front outer wall of the frame 1. The output end of the electric motor 407 passes through the interior of the frame 1 and is fixedly connected to a rotating shaft 409. Multiple power bevel gears 408 are sleeved on the shaft of the rotating shaft 409. Threaded rods 404 are provided inside the extension slots 406. One end of each threaded rod 404 passes through the interior of the frame 1 and is fixedly connected to a driven bevel gear 410. Extension plates 401 are sleeved on the shaft of each threaded rod 404. Two electric push rods 14 are fixedly connected to the rear end of the middle of the inner top surface of the frame 1. Friction blocks 15 are fixedly connected to the output ends of each electric push rod 14.

[0044] The power connection mechanism 5 not only facilitates power transmission but also effectively enhances safety and improves the convenience of maintenance and repair.

[0045] Reference Figure 3 :

[0046] A mounting frame 6 is fixedly connected to one inner wall of the frame 1, and a drive motor 7 is fixedly connected to one outer wall of the mounting frame 6. The output end of the drive motor 7 passes through the mounting frame 6 and is fixedly connected to a drive gear 10. A drive shaft 12 is rotatably connected to the front end of the inner walls on both sides of the frame 1. A power wheel 3 is fixedly connected to both sides of the drive shaft 12. A driven gear 11 is fixedly connected to one side of the drive shaft 12. Multiple support wheels 2 are provided at the rear end of the inner walls on both sides of the frame 1. The drive gear 10 and the driven gear 11 mesh with each other, so that bidirectional movement can be effectively and conveniently achieved by controlling the forward and reverse rotation of the drive motor 7. At the same time, the multiple wheels can effectively increase the force on the track of the vehicle and extend the service life of the track.

[0047] Reference Figure 2 and Figure 3 :

[0048] A support frame 8 is fixedly connected to the inner rear wall of the frame 1. A battery 9 is fixedly connected to the upper surface of the support frame 8. The battery 9 is electrically connected to the electric telescopic rod 506, the positive conductive post 510, and the negative conductive post 504, so that the battery 9 can conveniently replenish power and also effectively provide power support to the electric telescopic rod 506 when no power is supplied.

[0049] Reference Figure 4 and Figure 5 :

[0050] The drive bevel gear 408 meshes with the driven bevel gear 410. The extension plate 401 has threaded grooves 411 inside, and is threadedly connected to the threaded rod 404 through these grooves. This allows the extension plate 401 to be effectively extended as needed by the electric motor 407.

[0051] Reference Figure 1 and Figure 6 :

[0052] A connecting wire harness 13 is fixedly connected to one outer wall of both the first conductive sheet 508 and the second conductive sheet 509, thereby electrically connecting the first conductive sheet 508 and the second conductive sheet 509 through the connecting wire harness 13, which can effectively complete the power loop and enable the electrical appliances to work normally.

[0053] Reference Figure 4 :

[0054] The upper surface of the frame 1 is provided with multiple grooves 403, which effectively reduces the contact area with the sand box and the mold plate, avoiding damage caused by excessive friction during movement. Limiting grooves 405 are provided on the front and rear inner walls of the extension groove 406. The front and rear outer walls of the extension plate 401, near the rotation shaft 409, slide within the limiting grooves 405, effectively limiting the extension plate 401 and preventing it from falling off the threaded rod 404.

[0055] Reference Figure 2 :

[0056] Side baffles 402 are fixedly connected to the upper surface of the extension plate 401. By fixing the side baffles 402 to the upper surface of the extension plate 401, goods can be effectively prevented from falling from both sides.

[0057] Working principle: During installation, the first conductive rail 503 and the second conductive rail 502 are fixed inside the wheel rails on both sides with bolts. During use, the positive terminal of the wiring harness is connected to the first conductive piece 508, and the negative terminal of the wiring harness is connected to the second conductive piece 509. Then, the first conductive piece 508 and the second conductive piece 509 are electrically connected through the connecting harness 13. When the trolley needs to move, the battery 9 initially provides power to the electric telescopic rod 506, causing the electric telescopic rod 506 to extend and the electric rod 501 to rotate. When the electric rod 501 is lowered, the negative conductive post 504 contacts the second conductive piece 509 for conductivity, and the positive conductive post 510 contacts the first conductive piece 508 for conductivity. The current is then closed-looped through the connecting harness 13, thus providing power to the trolley and driving the motor 7. The system starts, and then the drive motor 7 drives the drive gear 10 to rotate, causing the drive gear 10 to mesh with the driven gear 11 and drive the drive shaft 12 to rotate, thereby rotating the power wheel 3 and moving the trolley. If more sand boxes or templates need to be loaded before use, the electric motor 407 can be started, causing the electric motor 407 to drive the rotating shaft 409 to rotate the power bevel gear 408. Then, the power bevel gear 408 meshes with the driven bevel gear 410 to rotate the threaded rod 404, thereby extending the extension plate 401 to expand the placement space. After completion, the output end of the drive motor 7 can be reversed to move the trolley in both directions. After moving to the designated position, the electric push rod 14 can be started to make the friction block 15 contact the ground, thereby preventing the trolley from moving.

[0058] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bidirectional positioning mechanism for a trolley used for a molding line, comprising a frame, characterized in that: A power connection mechanism is provided at the middle of the lower end of the vehicle frame. The power connection mechanism includes a power rod hinged to the inner top surface of the vehicle frame. An insulating rod is fixedly connected to the lower surface of the power rod. A negative conductive post and a positive conductive post are fixedly connected to both sides of the lower surface of the insulating rod, respectively. A hinge plate is fixedly connected to the front end of the inner top surface of the vehicle frame. An electric telescopic rod is hinged to the inner wall of the hinge plate. A first conductive rail and a second conductive rail are provided on both sides of the lower end of the vehicle frame, respectively. A first conductive plate is fixedly connected to the inner bottom surface of the first conductive rail, and a second conductive plate is fixedly connected to the inner bottom surface of the second conductive rail. An extension mechanism is provided at the upper end of the interior of the frame. The extension mechanism includes multiple extension slots opened on both sides of the upper surface of the frame. An electric motor is fixedly connected to the front outer wall of the frame. The output end of the electric motor passes through the interior of the frame and is fixedly connected to a rotating shaft. Multiple power bevel gears are sleeved on the shaft of the rotating shaft. Threaded rods are provided inside each of the extension slots. One end of each threaded rod passes through the interior of the frame and is fixedly connected to a driven bevel gear. Extension plates are sleeved on the shaft of each threaded rod. Two electric push rods are fixedly connected to the rear end of the middle of the inner top surface of the frame. Friction blocks are fixedly connected to the output ends of each electric push rod.

2. The bidirectional positioning mechanism for a trolley used in a molding line according to claim 1, characterized in that: A mounting frame is fixedly connected to one inner wall of the frame, and a drive motor is fixedly connected to one outer wall of the mounting frame. The output end of the drive motor passes through the mounting frame and is fixedly connected to a drive gear. A drive shaft is rotatably connected to the front end of the inner walls on both sides of the frame. A drive wheel is fixedly connected to both sides of the drive shaft. A driven gear is fixedly connected to one side of the drive shaft. Multiple support wheels are provided at the rear end of the inner walls on both sides of the frame. The drive gear and the driven gear are meshed together.

3. The bidirectional positioning mechanism for a trolley used in a molding line according to claim 1, characterized in that: A support frame is fixedly connected to the inner wall of the rear end of the vehicle frame, and a storage battery is fixedly connected to the upper surface of the support frame. The storage battery is electrically connected to the electric telescopic rod and the positive and negative conductive posts.

4. The bidirectional positioning mechanism for a trolley used in a molding line according to claim 1, characterized in that: The power bevel gear and the driven bevel gear are meshed together. The extension plate is provided with threaded grooves inside. The extension plate is threaded to the threaded rod through the threaded grooves.

5. The bidirectional positioning mechanism for a trolley used in a molding line according to claim 1, characterized in that: Connecting wire harnesses are fixedly connected to one side of the outer wall of both the first and second conductive sheets.

6. The bidirectional positioning mechanism for a trolley used in a molding line according to claim 1, characterized in that: The upper surface of the frame is provided with an array of grooves.

7. The bidirectional positioning mechanism for a trolley used in a molding line according to claim 1, characterized in that: Limiting grooves are provided on the inner walls of the front and rear ends of the extension groove, and the outer walls of the front and rear ends of the extension plate slide inside the limiting grooves on the side near the rotation axis.

8. The bidirectional positioning mechanism for a trolley used in a molding line according to claim 1, characterized in that: Side baffles are fixedly connected to the upper surface of each extension plate.