Sand pouring equipment for power and free chain conveying system

Abstract

The utility model discloses sand pouring equipment for a power and free chain conveying system, which is positioned at a sand pouring station of the power and free chain conveying system, the power and free chain conveying system comprises a bearing track and a power and free trolley supported on the bearing track, and the sand pouring equipment comprises a rack, a separable track, at least one stopper and an inclined sand pouring mechanism, the separable track is in separable lap joint with the bearing track, at least one accumulation trolley can be contained on the separable track, at least one stopper is controllably blocked on the separable track, and the inclined sand pouring mechanism is arranged on the rack and is configured to be used for pouring sand into the bearing track after the separable track is separated from the bearing track. And the separable track is inclined in the front-back direction so as to realize sand pouring of the workpiece. And residual abrasive sand grains on the surface of the workpiece can automatically fall off under the action of gravity, automatic sand cleaning treatment of the workpiece is achieved, efficiency is higher, and safety and reliability are higher.

Description

Technical Field

[0001] The utility model relates to the technical field of coating production lines, in particular to a sand dumping device used in an accumulation and release chain conveying system. Background Art

[0002] In the field of surface coating technology, coating production lines usually use a power-and-free chain conveyor system to transport workpieces, and transport the workpieces to be processed to each workstation in sequence according to the production process, and perform corresponding process treatment through the coating equipment at each workstation. Before the workpiece is subjected to surface coating treatment, it is generally necessary to perform a pre-treatment process on the workpiece to be processed, such as sandblasting. Sandblasting is a surface treatment process that is mainly used for surface cleaning and roughening of materials such as metals, glass, and ceramics. It uses high-speed airflow to spray abrasives (such as sand, steel shots, plastic particles, etc.) onto the surface of the workpiece to remove impurities, oxide layers, rust, etc. on the surface of the workpiece. At the same time, it can also increase the roughness of the workpiece surface, which helps the adhesion of coatings or adhesives.

[0003] After sandblasting, the surface of the workpiece is usually covered with a layer of abrasive particles, and the workpiece needs to be cleaned to remove the residual abrasive sand particles on the surface of the workpiece. Traditional sand cleaning is usually done manually using a vacuum cleaner or a high-pressure air gun to clean the workpiece. Manual sand cleaning is slow and has low operating efficiency, making it unsuitable for mass production. Manual sand cleaning can easily cause abrasive splashes and pose a safety hazard. For large workpieces with complex shapes, manual sand cleaning may have difficult-to-reach areas, making it difficult to completely remove abrasive particles. Therefore, there is an urgent need for a device that can perform sand cleaning on workpieces to improve production efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a sand dumping device for an accumulation chain conveying system which can remove residual abrasive sand particles on the surface of a workpiece and has higher operating efficiency.

[0005] To this end, the utility model provides a sand dumping device for a accumulating and releasing chain conveying system, which is located at a sand dumping station of the accumulating and releasing chain conveying system. The accumulating and releasing chain conveying system includes a load-bearing track and an accumulating and releasing trolley supported on the load-bearing track. The sand dumping device includes:

[0006] frame;

[0007] A detachable track is detachably connected to the carrying track, and the detachable track can accommodate at least one accumulating trolley with a workpiece suspended thereon;

[0008] at least one stopper controllably blocking the detachable track;

[0009] The tilting sand dumping mechanism is arranged on the frame and is configured to tilt the detachable track in the front-to-back direction to dump sand from the workpiece after the detachable track is separated from the carrying track.

[0010] According to one embodiment of the utility model, a locking mechanism is provided between the detachable rail and the carrying rail, and the locking mechanism is configured to lock the detachable rail and the carrying rail when the detachable rail and the carrying rail are overlapped; and to release the detachable rail and the carrying rail from a locked state when the detachable rail and the carrying rail are separated.

[0011] According to one embodiment of the utility model, the locking mechanism includes a locking cylinder arranged on the frame, a locking part transmission-connected to the locking cylinder, and a locking mating part arranged on the detachable rail, and the locking part and the locking mating part latch-match in the front-to-back direction so that the detachable rail and the load-bearing rail are locked in the vertical direction.

[0012] According to one embodiment of the utility model, a limiting mechanism is arranged between the detachable rail and the carrying rail, and the limiting mechanism is configured to limit the detachable rail in the horizontal direction when the detachable rail is overlapped with the carrying rail; and to release the detachable rail from the limit when the detachable rail is separated from the carrying rail.

[0013] According to an embodiment of the utility model, the limiting mechanism includes a limiting portion provided on the frame and a limiting matching portion provided on the detachable rail, and the limiting portion and the limiting matching portion are matched with each other in the upper and lower directions.

[0014] According to an embodiment of the present invention, the sand dumping device comprises two stoppers, and the two stoppers are controllably blocked at the front and rear of the detachable track, respectively.

[0015] According to one embodiment of the utility model, the sand dumping equipment includes a control mechanism, which includes a controller and a trolley detection sensor arranged on the detachable track. The controller is configured to close the stopper and control the inclined sand dumping mechanism to operate based on the detection signal of the trolley detection sensor after the accumulation trolley moves onto the detachable track, so that the detachable track is tilted in the front and rear direction to realize the sand dumping of the workpiece.

[0016] According to one embodiment of the utility model, the inclined sand dumping mechanism includes a first lifting assembly and a second lifting assembly, the first lifting assembly is configured to raise or lower the rear portion of the detachable track, the second lifting assembly is configured to raise or lower the rear portion of the detachable track, and the detachable track can be tilted in the front-to-back direction under the drive of the first lifting assembly and the second lifting assembly to achieve inclined sand dumping of the workpiece.

[0017] According to one embodiment of the utility model, the first lifting assembly includes a first lifting motor arranged on the frame, a first transmission shaft connected to the first lifting motor, a first driving sprocket installed on the first transmission shaft, a first driven sprocket rotatably arranged on the frame, a first counterweight member movably arranged on the frame along the up and down directions, and a first hanging chain transmission-connected between the first driving sprocket and the first driven sprocket, one end of the first hanging chain is connected to the rear portion of the detachable track, and the other end is connected to the first counterweight member.

[0018] According to one embodiment of the utility model, the second lifting assembly includes a second lifting motor arranged on the frame, a second transmission shaft connected to the second lifting motor, a second driving sprocket installed on the second transmission shaft, a second driven sprocket rotatably arranged on the frame, a second counterweight member movably arranged on the frame along the up and down directions, and a second lifting chain transmission-connected between the second driving sprocket and the second driven sprocket, one end of the second lifting chain is connected to the front part of the detachable track, and the other end is connected to the second counterweight member.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] The sand dumping equipment of the utility model mainly includes a frame, a detachable track, at least one stopper and an inclined sand dumping mechanism. The detachable track is detachably overlapped with the bearing track of the accumulation chain conveying system. The detachable track can accommodate at least one accumulation trolley with a workpiece suspended thereon. At least one stopper can be controllably blocked on the detachable track. The inclined sand dumping mechanism is arranged on the frame and is configured to tilt the detachable track in the front-to-back direction after the detachable track is separated from the bearing track to realize the sand dumping of the workpiece. The residual abrasive sand particles on the surface of the workpiece can automatically fall off under the action of gravity, realizing the automatic sand cleaning of the workpiece, which is more efficient, safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of a sand dumping device according to an embodiment of the utility model;

[0022] Figure 2 It is a side plan view of a sand dumping device according to an embodiment of the utility model;

[0023] Figure 3 yes Figure 2 A local enlarged view of point A shown in FIG;

[0024] Figure 4 yes Figure 2 A schematic diagram showing the separation of the detachable track of the sand dumping device from the carrying track;

[0025] Figure 5 yes Figure 2 A schematic diagram of the detachable track of the sand dumping device shown in FIG. 1 being tilted to dump the sand from the workpiece;

[0026] Figure 6 This is a front plan view of a sand dumping device according to an embodiment of the utility model;

[0027] Figure 7 yes Figure 6 A partial enlarged view of point B shown in FIG.

[0028] Figure 8 This is a top plan view of a sand dumping device according to an embodiment of the utility model;

[0029] Fig. 9 It is a schematic diagram of a sand dumping device in one embodiment of the utility model in which two accumulating trolleys hang a workpiece and dump sand obliquely;

[0030] Fig.10 It is a schematic diagram of two accumulating trolleys hanging two workpieces and tilting the sand in a sand dumping device in one embodiment of the utility model;

[0031] Fig.11 This is a control flow chart of a sand dumping device according to an embodiment of the utility model;

[0032] The reference numerals are as follows:

[0033] 100. Sand dumping equipment;

[0034] 1. Frame;

[0035] 2. Separable track;

[0036] 3. Stopper;

[0037] 4. Tilting sand dumping mechanism; 41. First lifting assembly; 411. First lifting motor; 412. First transmission shaft; 413. First driving sprocket; 414. First driven sprocket; 415. First counterweight; 416. First hanging chain; 42. Second lifting assembly; 421. Second lifting motor; 422. Second transmission shaft; 423. Second driving sprocket; 424. Second driven sprocket; 425. Second counterweight; 426. Second hanging chain;

[0038] 5. Locking mechanism; 51. Locking cylinder; 52. Locking part; 53. Locking matching part;

[0039] 6. Limiting mechanism; 61. Limiting part; 62. Limiting matching part;

[0040] 7. Control mechanism; 71. Controller; 72. Car detection sensor;

[0041] 200, accumulation and release chain conveying system; 201, load-bearing track; 202, accumulation and release trolley;

[0042] 300. Workpiece. DETAILED DESCRIPTION

[0043] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction on the technical solution of the utility model.

[0044] according to Figure 1 As shown, in one embodiment of the utility model, a sand dumping device 100 is provided, and the sand dumping device 100 is arranged at the sand dumping station of the accumulation and release chain conveying system 200. The sand dumping device 100 is used to clean the workpiece 300 after the sandblasting operation, so as to remove the residual abrasive sand particles on the surface of the workpiece 300, so that the workpiece 300 can enter the next process for surface coating operation.

[0045] according to Figure 2 As shown, the accumulation chain conveyor system 200 may include a carrying rail 201 and an accumulation trolley 202 supported on the carrying rail 201. The accumulation chain conveyor system 200 may convey the accumulation trolley 202 through a conveying chain (not shown) and a trolley pusher (not shown), and move the accumulation trolley 202 to each workstation of the coating production line according to the production process, and perform corresponding process processing through the process equipment at each workstation. When the accumulation trolley 202 moves to the sand dumping station, the accumulation trolley 202 is transported by a trolley machine, thereby pushing the accumulation trolley 202 from the carrying track 201 of the accumulation chain conveying system 200 to the detachable track 2 of the sand dumping equipment 100. The movement direction of the accumulation trolley 202 on the detachable track 2 is from back to front. After the sand dumping operation is completed by the sand dumping equipment 100, the accumulation trolley 202 is pushed from the detachable track 2 of the sand dumping equipment 100 to the carrying track 201 of the accumulation chain conveying system 200 by the trolley machine, without specific restrictions.

[0046] Combination Figure 4 and Figure 6As shown, the sand dumping device 100 includes a frame 1 , a detachable track 2 , a stopper 3 and an inclined sand dumping mechanism 4 .

[0047] The detachable track is detachably overlapped with the carrying track 201 , and the detachable track 2 can accommodate the accumulation trolley 202 with the workpiece 300 suspended thereon.

[0048] Combination Fig. 9 As shown, in one embodiment of the present invention, the detachable track 2 can accommodate two accumulating trolleys 202 hanging a workpiece 300. Among them, the two accumulating trolleys 202 can hang a workpiece 300 through a hanging rack, which is not specifically limited.

[0049] Combination Fig.10 As shown, in one embodiment of the utility model, the detachable track 2 can accommodate two accumulating trolleys 202 hanging two workpieces 300. Among them, the two accumulating trolleys 202 can hang two workpieces 300 through a hanging frame, and there is no specific limitation.

[0050] In some embodiments, the detachable track 2 can accommodate two or more accumulating carts 202, and the accumulating cart 202 can hang two or more workpieces 300 through hanging parts such as hanging racks, and there is no restriction on the shape, size and structure of the workpieces 300.

[0051] Combination Figure 2 and Figure 3 As shown, when the detachable track 2 overlaps with the load-bearing track 201 of the accumulation and release chain conveying system 200, in order to make the detachable track 2 and the load-bearing track 201 more firmly connected together, a locking mechanism 5 is provided between the detachable track 2 and the load-bearing track 201. The locking mechanism 5 is configured to lock the detachable track 2 and the load-bearing track 201 when the detachable track 2 overlaps with the load-bearing track 201; and to release the detachable track 2 and the load-bearing track 201 from the locked state when the detachable track 2 and the load-bearing track 201 are separated.

[0052] Specifically, the locking mechanism 5 includes a locking cylinder 51 disposed on the frame 1, a locking portion 52 drivingly connected to the locking cylinder 51, and a locking matching portion 53 disposed on the detachable rail 2. The locking portion 52 and the locking matching portion 53 are latched and matched in the front-to-back direction, so that the detachable rail 2 and the load-bearing rail 201 are locked in the vertical direction, thereby limiting the displacement of the detachable rail 2 in the vertical direction. Among them, the locking portion 52 can be configured as a rod-shaped or shaft-shaped structure, and the locking matching portion 53 can be configured as a jack or a slot. In some embodiments, the locking mechanism 5 is not limited to a plug-in matching structure, but can also be other locking structures, such as a snap-on structure, which is not specifically limited.

[0053] In order to limit the displacement of the detachable track 2 in the front-to-back direction, a limiting mechanism 6 is provided between the detachable track 2 and the carrying track 201. The limiting mechanism 6 is configured to limit the detachable track 2 in the horizontal direction when the detachable track 2 overlaps the carrying track 201, thereby limiting the displacement of the detachable track 2 in the front-to-back direction. When the detachable track 2 is separated from the carrying track 201, the detachable track 2 is released from the limiting position.

[0054] Specifically, the limiting mechanism 6 includes a limiting portion 61 provided on the frame 1 and a limiting matching portion 62 provided on the detachable rail 2, and the limiting portion 61 and the limiting matching portion 62 are matched in the upper and lower directions. Among them, the limiting portion 61 can be configured as a limiting rod or a limiting pin shaft, and the limiting matching portion 62 can be configured as a limiting hole or a limiting groove. In some embodiments, the limiting mechanism 6 is not limited to a hole-shaft matching or a pin-hole matching structure, and can also be other limiting structures, which are not specifically limited.

[0055] Combination Figure 6 and Figure 7 As shown, the stopper 3 is controllably blocked on the detachable track 2. The stopper 3 includes a stop cylinder and a stop rod drivingly connected to the stop cylinder. The stopper 3 has an open state and a closed state. When the stopper 3 is in the closed state, the stop cylinder drives the stop rod to extend and intercept on the detachable track 2, so that the accumulation trolley 202 entering the detachable track 2 can be intercepted. When the stopper 3 is in the open state, the stop cylinder drives the stop rod to retract, thereby releasing the accumulation trolley 202 on the detachable track 2.

[0056] Combination Figure 8 As shown, two stoppers 3 may be provided, and the two stoppers 3 are controllably blocked at the front and rear of the detachable track 2. Therefore, the accumulation trolley 202 entering the detachable track 2 may be restricted between the two stoppers 3. Of course, only one stopper 3 may be provided at the rear of the detachable track 2, and after the accumulation trolley 202 enters the detachable track 2, the stopper 3 is closed, thereby intercepting the accumulation trolley and parking it on the detachable track 2. When the detachable track 2 is tilted to dump sand, the detachable track 2 is tilted in the front-to-back direction, so that the front of the detachable track 2 is higher than the rear, and there is no specific limitation.

[0057] Combination Figure 5 and Figure 8 As shown, the inclined sand dumping mechanism 4 is disposed on the frame 1 and is configured to tilt the detachable rail 2 along the front-to-back direction to dump sand from the workpiece 300 after the detachable rail 2 is separated from the carrying rail 201 .

[0058] In the embodiment of the utility model, the tilting sand dumping mechanism 4 adopts a lifting and hoisting structure to realize the tilting of the detachable track 2, so that the front part of the detachable track 2 is higher than the rear part, so that the accumulation trolley 202 accumulated on the detachable track 2 drives the workpiece 300 to tilt together, so that the residual abrasive sand grains on the workpiece 300 fall off naturally due to their own gravity, and the purpose of automatic sand cleaning is achieved. In some embodiments, the tilting sand dumping mechanism 4 is not limited to the use of a lifting and hoisting structure to realize the tilting of the detachable track 2, and a rotating structure can also be used to realize the tilting sand dumping function, for example, the detachable track 2 is rotatably set on the frame 1, and the rotation of the detachable track 2 is driven by a rotating motor or a rotating cylinder to cause the detachable track 2 to tilt, so that the accumulation trolley 202 accumulated on the detachable track 2 drives the workpiece 300 to tilt together, so that the residual abrasive sand grains on the workpiece 300 fall off naturally due to their own gravity, and the purpose of automatic sand cleaning is achieved, and there is no specific limitation.

[0059] The inclined sand dumping mechanism 4 includes a first lifting component 41 and a second lifting component 42. The first lifting component 41 is configured to raise or lower the rear part of the detachable track 2, and the second lifting component 42 is configured to raise or lower the front part of the detachable track 2. The detachable track 2 can be tilted in the front and rear directions under the drive of the first lifting component 41 and the second lifting component 42 to realize the inclined sand dumping of the workpiece 300.

[0060] Specifically, the first lifting assembly 41 includes a first lifting motor 411 arranged on the frame 1, a first transmission shaft 422 connected to the first lifting motor 411, a first driving sprocket 413 installed on the first transmission shaft 422, a first driven sprocket 414 rotatably arranged on the frame 1, a first counterweight 415 movably arranged on the frame 1 along the up and down directions, and a first hanging chain 426 transmission-connected between the first driving sprocket 413 and the first driven sprocket 414, one end of the first hanging chain 426 is connected to the rear portion of the detachable rail 2, and the other end is connected to the first counterweight 415.

[0061] The second lifting assembly 42 includes a second lifting motor 421 arranged on the frame 1, a second transmission shaft 422 connected to the second lifting motor 421, a second driving sprocket 423 installed on the second transmission shaft 422, a second driven sprocket 424 rotatably arranged on the frame 1, a second counterweight 425 movably arranged on the frame 1 along the up and down directions, and a second hanging chain 426 drivingly connected between the second driving sprocket 423 and the second driven sprocket 424, one end of the second hanging chain 426 is connected to the front part of the detachable rail 2, and the other end is connected to the second counterweight 425.

[0062] The sum of the weights of the first counterweight 415 and the second counterweight 425 is designed to be greater than or equal to the weight of the detachable track 2, so that the lifting and lowering of the detachable track 2 is more labor-saving, and there is no specific limitation.

[0063] Combination Figure 6 As shown, the first counterweight 415 and the second counterweight 425 can be slidably arranged on the frame 1 in the up-down direction, respectively, and a slide groove can be arranged on the frame 1, and the first counterweight 415 and the second counterweight 425 can be slidably arranged in the slide groove of the frame 1 like a slider. In addition, in some embodiments, a slide rail extending up and down can be arranged on the frame 1, and a slider can be arranged on the first and second counterweights, and the first and second counterweights can be slidably arranged on the frame 1 through the sliding fit between the slider and the slide rail, and the number of the first and second counterweights can be one, two or more, respectively, and there is no specific limitation.

[0064] Combination Figure 3 and Fig.11 As shown, the sand dumping equipment 100 may include a control mechanism 7, the control mechanism 7 includes a controller 71, a trolley detection sensor 72 arranged on the detachable track 2, and the controller 71 is configured to close the stopper 3 and control the tilting sand dumping mechanism 4 to work based on the detection signal of the trolley detection sensor 72 after the accumulation trolley 202 moves onto the detachable track 2, so that the detachable track 2 is tilted in the front-to-back direction to realize the sand dumping of the workpiece 300. Among them, the control mechanism 71 can be a PLC controller or an industrial computer, and the trolley detection sensor 72 can be an infrared sensor, an identification sensor or a position sensor. When the trolley detection sensor 72 adopts an infrared sensor, when the accumulation trolley 202 passes the infrared sensor, the infrared sensor can feed back the detection signal of the accumulation trolley 202 to the controller 71. When the trolley detection sensor 72 adopts an identification sensor, an identification code can be set on the accumulation trolley 202. The trolley detection sensor 72 can read and identify the identification code on the accumulation trolley 202, and feed back the identification signal to the controller 71. The controller 71 can obtain the relevant information of the accumulation trolley 202 by obtaining the identification signal, such as what number of accumulation trolleys it is, what kind of workpieces it carries, etc. When the trolley detection sensor 72 adopts a position sensor, when an accumulation trolley 202 passes by the position sensor, the position sensor will feed back the detected position signal of the accumulation trolley 202 to the controller 71, and the controller 71 can obtain the position information of the accumulation trolley, without specific limitation.

[0065] The control process is implemented as follows: the accumulation chain conveyor system 200 conveys the accumulation trolley 202 with the sandblasted workpiece 300 hanging on it to the sand dumping station through the conveyor chain, and then the trolley pusher pushes the accumulation trolley 202 onto the detachable track 2. The accumulation trolley 202 moves from back to front on the detachable track 2. When it passes the trolley detection sensor 72, the controller 71 receives the detection signal from the trolley detection sensor 72, and the controller 71 sends a control signal to the stopper 3 to control the stopper 3 to close, thereby intercepting the accumulation trolley 203 and stopping it to accumulate it on the detachable track 2. Then the controller 71 sends a control signal to the locking cylinder 51 of the locking mechanism 5, controlling the locking cylinder 51 to drive the locking part 52 to unlock the locking matching part 53 on the detachable rail 2, thereby unlocking the detachable rail 2 and the load-bearing rail 201 of the accumulation and release chain conveying system 200. Then the controller 71 sends a control signal to the first lifting motor 411 and the second lifting motor 421, thereby controlling the first lifting component 41 and the second lifting component 42 to respectively drive the detachable rail 2 to descend to different heights, so that the detachable rail 2 tilts and drives the workpiece 300 to tilt together, realizing the sand pouring operation, and the abrasive sand particles on the surface of the workpiece 300 naturally fall off due to their own gravity.

[0066] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A sand dumping device for a stacking chain conveyor system (200), located at a sand dumping station of the stacking chain conveyor system (200), wherein the stacking chain conveyor system (200) comprises a load-bearing track (201) and a stacking trolley (202) supported on the load-bearing track (201), characterized in that: The sand pouring equipment comprises: Rack(1); A detachable track (2) detachably overlapped with the carrying track (201), the detachable track (2) being capable of accommodating at least one accumulating trolley (202) on which a workpiece (300) is suspended; at least one stopper (3) controllably blocking the detachable track (2); The tilting sand dumping mechanism (4) is arranged on the frame (1) and is configured to tilt the detachable track (2) in the front-rear direction to dump sand from the workpiece (300) after the detachable track (2) is separated from the carrying track (201).

2. The sand dumping equipment according to claim 1, characterized in that: A locking mechanism (5) is provided between the detachable track (2) and the carrying track (201), and the locking mechanism (5) is configured to lock the detachable track (2) and the carrying track (201) when the detachable track (2) and the carrying track (201) are overlapped; and to release the detachable track (2) and the carrying track (201) from a locked state when the detachable track (2) and the carrying track (201) are separated.

3. The sand dumping equipment according to claim 2, characterized in that: The locking mechanism (5) comprises a locking cylinder (51) arranged on the frame (1), a locking portion (52) drivingly connected to the locking cylinder (51), and a locking matching portion (53) arranged on the detachable rail (2), wherein the locking portion (52) and the locking matching portion (53) are latched together in the front-rear direction, so that the detachable rail (2) and the bearing rail (201) are locked in the vertical direction.

4. The sand dumping equipment according to claim 1, characterized in that: A limiting mechanism (6) is provided between the detachable track (2) and the carrying track (201), and the limiting mechanism (6) is configured to limit the detachable track (2) in a horizontal direction when the detachable track (2) and the carrying track (201) overlap; and to release the detachable track (2) from the limiting position when the detachable track (2) and the carrying track (201) are separated.

5. The sand dumping device according to claim 4, characterized in that: The limiting mechanism (6) comprises a limiting portion (61) arranged on the frame (1) and a limiting matching portion (62) arranged on the detachable rail (2), wherein the limiting portion (61) matches the limiting matching portion (62) in a vertical direction.

6. The sand dumping equipment according to claim 1, characterized in that: The sand pouring device comprises two stoppers (3), and the two stoppers (3) are respectively controllably blocked at the front and rear of the detachable track (2).

7. The sand dumping equipment according to claim 1, characterized in that: The sand dumping device comprises a control mechanism (7), the control mechanism (7) comprising a controller (71) and a trolley detection sensor (72) arranged on the detachable track (2). The controller (71) is configured to close the stopper (3) and control the operation of the inclined sand dumping mechanism (4) based on a detection signal of the trolley detection sensor (72) after the accumulating trolley (202) moves onto the detachable track (2), so as to tilt the detachable track (2) in a front-to-rear direction to realize sand dumping of the workpiece (300).

8. The sand dumping device according to any one of claims 1 to 7, characterized in that: The tilting sand pouring mechanism (4) comprises a first lifting assembly (41) and a second lifting assembly (42); the first lifting assembly (41) is configured to cause the rear portion of the detachable track (2) to rise or fall; the second lifting assembly (42) is configured to cause the front portion of the detachable track (2) to rise or fall; the detachable track (2) can be tilted in a front-to-rear direction under the drive of the first lifting assembly (41) and the second lifting assembly (42) to realize tilting sand pouring of the workpiece (300).

9. The sand dumping device according to claim 8, characterized in that: The first lifting assembly (41) comprises a first lifting motor (411) arranged on the frame (1), a first transmission shaft (412) connected to the first lifting motor (411), a first driving sprocket (413) mounted on the first transmission shaft (412), a first driven sprocket (414) rotatably arranged on the frame (1), a first counterweight (415) movably arranged on the frame (1) in an up-down direction, and a first suspension chain (416) drivingly connected between the first driving sprocket (413) and the first driven sprocket (414), wherein one end of the first suspension chain (416) is connected to the rear of the detachable track (2), and the other end is connected to the first counterweight (415).

10. The sand dumping equipment according to claim 8, characterized in that: The second lifting assembly (42) comprises a second lifting motor (421) arranged on the frame (1), a second transmission shaft (422) connected to the second lifting motor (421), a second driving sprocket (423) mounted on the second transmission shaft (422), a second driven sprocket (424) rotatably arranged on the frame (1), a second counterweight (425) movably arranged on the frame (1) in an up-down direction, and a second suspension chain (426) drivingly connected between the second driving sprocket (423) and the second driven sprocket (424), wherein one end of the second suspension chain (426) is connected to the front of the detachable track (2), and the other end is connected to the second counterweight (425).

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