Sand mold conveying device for casting molding

Abstract

The utility model discloses a sand mold conveying device for casting molding, and relates to the technical field of casting molding material conveying. According to the technical scheme, the sand mold conveying device for casting molding comprises a rack, a belt conveying mechanism is arranged on the rack, and the belt conveying mechanism can convey a sand mold; an auxiliary pushing mechanism is further arranged on the machine frame and can push the sand mold to the unpowered station. The sand mold pushing device has the beneficial effects that when the belt conveying mechanism is difficult to push a sand mold to a preset position due to insufficient friction force, the auxiliary pushing mechanism can provide necessary pushing force, so that the sand mold can smoothly reach a target position. Manual intervention is not needed in the whole process, potential safety hazards are eliminated, and the production efficiency and the utilization rate of human resources are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting molding material conveying, in particular to a sand mold conveying device for casting molding. Background Art

[0002] On the casting molding line, the rapid transportation of sand molds to different workstations is a key link to ensure the efficient, continuous and stable quality of the casting process. The importance of this step lies in that it directly affects the collaborative work and production efficiency of each link in the casting process. Only when the sand molds are quickly and accurately transported to the designated workstations can the subsequent processes such as molding, pouring, cooling, and cleaning proceed smoothly, thus avoiding stagnation and delays in the production line. In addition, the rapid transportation of sand molds can also help reduce the damage and deformation of sand molds during transportation, ensuring the dimensional accuracy and surface quality of castings. Therefore, the efficiency of the sand mold conveying device has an important influence on the production efficiency and product quality of the entire casting molding line that cannot be ignored.

[0003] The existing sand mold conveying device mainly relies on roller conveyors for conveying. The neatly arranged conveying rollers on the roller conveyor rotate under control. Through the friction generated between the sand mold and the sand mold, the sand mold is stably pushed along the preset path to ensure that the sand mold is conveyed to different workstations.

[0004] However, in actual applications, when the sand mold needs to be transferred to the unpowered workstation, the friction force generated by the transfer roller alone is often not enough to push the sand mold smoothly to the unpowered workstation platform. In this case, manual assistance is usually required, which not only increases the safety risks of the operation, but also consumes additional manpower and material resources, affecting the overall production efficiency and cost-effectiveness. Summary of the invention

[0005] In view of the problem that when the sand mold needs to be transferred to an unpowered workstation, manual assistance is required, which poses a safety hazard and is time-consuming and labor-intensive, the utility model provides a sand mold conveying device for casting molding, which does not require manual assistance, has no safety hazard, saves time and labor, and saves time and labor.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is a sand mold conveying device for casting molding, including a frame, a belt conveying mechanism is provided on the frame, and the belt conveying mechanism can transport the sand mold; the frame is also provided with an auxiliary pushing mechanism, and the auxiliary pushing mechanism can push the sand mold to the unpowered workstation. The belt conveying mechanism can transport the sand mold to different workstations. When it is necessary to transport the sand mold to the unpowered workstation, the auxiliary pushing mechanism can cooperate with the belt conveying mechanism to ensure that the sand mold arrives at the unpowered workstation platform smoothly and accurately. Therefore, in the case that the belt conveying mechanism is difficult to push the sand mold to the target position only by friction, the auxiliary pushing mechanism in the device can assist in pushing and ensure that the sand mold arrives at the predetermined position without relying on manual assistance throughout the process, thereby eliminating the potential safety hazards caused by manual operation, significantly saving manpower, and also improving the overall production efficiency.

[0007] Preferably, the belt conveyor mechanism includes two groups, the two groups of belt conveyor mechanisms are respectively located on both sides of the frame, and the auxiliary pushing mechanism is located between the two groups of belt conveyor mechanisms. The two groups of belt conveyor mechanisms are distributed on both sides of the auxiliary pushing mechanism, which not only ensures that the sand mold can be smoothly transported to the target position according to the established path, but also ensures that the belt conveyor mechanism will not interfere with the auxiliary pushing mechanism during operation, thereby ensuring the smoothness and efficiency of the entire conveying process.

[0008] Preferably, the auxiliary pushing mechanism includes a cylinder 1, which is fixed on a frame, and the telescopic direction of the piston rod of the cylinder 1 is parallel to the conveying direction of the sand mold. A trolley is fixed to the telescopic end of the piston rod, and a pusher head is provided on the trolley, which can be raised and lowered in the vertical direction. When the telescopic end of the piston rod of the cylinder 1 extends outward, it can effectively push the trolley forward. While the trolley moves forward, the pusher head on it will rise to a suitable height accordingly and closely abut against the sand mold. Subsequently, the pusher head will smoothly push the sand mold to a predetermined position as the trolley continues to move.

[0009] Preferably, one side of the push head is fixedly connected to one end of the push rod, the middle position of the push rod is hinged to the cart, and the other end of the push rod is provided with a control mechanism. The middle position of the push rod is connected to the cart by a hinge, so that the two ends of the push rod can move relative to each other like a seesaw. The control mechanism can effectively control the position of the push rod close to one end of the push head by accurately adjusting the position of the other end of the push rod.

[0010] Preferably, the control mechanism includes a second cylinder, a cylinder body of the second cylinder is hinged to the cart, and a telescopic end of the piston rod of the second cylinder is hinged to the other end of the push rod. By precisely controlling the extension or retraction of the telescopic end of the piston rod of the second cylinder, precise control of the other end of the push rod can be achieved, thereby further effectively adjusting the position of the push rod close to one end of the push head, ensuring the accuracy and stability of the sand mold pushing.

[0011] Preferably, a cushion pad is fixed on the other side of the pusher head. A soft cushion pad is installed on the other side of the pusher head to prevent the pusher head from directly contacting the sand mold during the pushing process, thereby effectively avoiding damage to the sand mold due to collision and ensuring the integrity and quality of the sand mold.

[0012] Preferably, the pusher further comprises a sleeve, one end of which is fixedly connected to the push head, and the other end of which is sleeved on the outside of the push rod, and the sleeve can slide and lock along the length direction of the push rod. By adjusting the distance that the sleeve slides out, the distance between the push head and the cart can be flexibly adjusted, thereby realizing the control of the push distance of the push head.

[0013] Preferably, photoelectric sensors 1 are fixed on both sides of the middle position of the frame. When the photoelectric sensor 1 detects that the sand mold has completely passed, it can quickly trigger the control system, and the telescopic end of the piston rod of the cylinder 1 pushes the cart forward, while the cylinder 2 adjusts the push rod to raise the push head to a suitable height. Subsequently, the push head is closely in contact with the sand mold, and the sand mold is smoothly pushed to the predetermined position.

[0014] Preferably, photoelectric sensors 2 are fixed on both sides of the left end of the frame. When photoelectric sensor 2 detects the sand mold, it will decide to send a control signal according to the real-time preparation status of the next station. If the next station is not ready, photoelectric sensor 2 will immediately trigger the control mechanism to suspend the belt conveyor mechanism to prevent the sand mold from being transferred to the unready station in advance. On the contrary, if the next station is ready, photoelectric sensor 2 will send a signal to prompt the belt conveyor mechanism to continue working to ensure that the sand mold can be accurately transported to the predetermined position.

[0015] Preferably, the belt conveyor mechanism comprises a driving roller and a driven roller, and a conveyor belt is installed between the driving roller and the driven roller. The conveyor belt bears the main responsibility of transporting the sand mold, ensuring that the sand mold can be efficiently and accurately transported from the starting point to the destination.

[0016] It can be seen from the above technical solutions that the advantages of the utility model are: photoelectric sensor 1 and photoelectric sensor 2 can control the states of the auxiliary push mechanism and the belt conveyor mechanism respectively. The belt conveyor mechanism can transport the sand mold to different workstations. When it is necessary to transport the sand mold to an unpowered workstation, the auxiliary push mechanism can cooperate with the belt conveyor mechanism to ensure that the sand mold arrives at the unpowered workstation platform smoothly and accurately. In summary, when the belt conveyor mechanism is unable to push the sand mold to the predetermined position due to insufficient friction, the auxiliary push mechanism can provide the necessary thrust, thereby ensuring that the sand mold reaches the target position smoothly. No manual intervention is required during the entire process, which not only eliminates safety hazards, but also significantly improves production efficiency and the utilization rate of human resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the main structure of a specific implementation method of the utility model.

[0019] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0020] Figure 3 for Figure 1 A partial enlarged view of point B in the middle.

[0021] Figure 4 It is a schematic diagram of the top structure of a specific implementation method of the utility model.

[0022] Description of main reference numerals

[0023] In the figure: 1. frame, 11. driving roller, 12. driven roller, 13. conveyor belt, 2. photoelectric sensor 1, 3. photoelectric sensor 2, 4. cart, 41. cylinder 1, 5. push head, 51. buffer pad, 52. sleeve, 53. push rod, 54. cylinder 2, 6. motor, 7. intermediate shaft. DETAILED DESCRIPTION

[0024] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0025] A sand mold conveying device for casting molding comprises a frame 1, on which a belt conveying mechanism is provided, the belt conveying mechanism can convey the sand mold, and the conveying direction of the belt conveying mechanism is the same as the length direction of the frame 1. There are two groups of belt conveying mechanisms, and the two groups of belt conveying mechanisms are respectively located on both sides of the frame 1. A chute is provided in the middle of the two groups of belt conveying mechanisms, and the length direction of the chute is the same as the length direction of the frame 1. An auxiliary pushing mechanism is installed in the chute, and the auxiliary pushing mechanism can move along the chute and can push the sand mold to an unpowered workstation.

[0026] like Figure 1As shown, in this specific embodiment, the belt conveying mechanism specifically adopts the following structure: the belt conveying mechanism includes a driving roller 11 and a driven roller 12, and the driving roller 11 and the driven roller 12 are both fixed on the frame 1 through bearings. A conveyor belt 13 is installed between the driving roller 11 and the driven roller 12, and the rotation of the driving roller 11 can drive the driven roller 12 to rotate through the conveyor belt 13. An idler is installed between the driving roller 11 and the driven roller 12, and the idler is fixed on the frame 1 through bearings. The idler can support the sand mold to prevent the weight of the sand mold from acting entirely on the conveyor belt 13. A tensioning wheel is also installed on the frame 1, and the tensioning wheel is located below the conveyor belt 13 and abuts against the conveyor belt 13. There are two tensioning wheels in each group of belt conveying mechanisms, and the two tensioning wheels are respectively located near the driving roller 11 and the driven roller 12.

[0027] like Figure 4 As shown, a motor 6 is installed on the frame 1, and the axis of the output shaft of the motor 6 is parallel to the axis of the active roller 11, and a sprocket is fixed on the output shaft of the motor 6. An intermediate shaft 7 is also installed on the frame 1, and the intermediate shaft 7 is fixed on the frame 1 through a bearing. Three sprockets are sleeved on the intermediate shaft 7, and the three sprockets are fixed on the intermediate shaft 7 through pins. The first sprocket on the intermediate shaft 7 is connected to the sprocket on the output shaft of the motor 6 through a chain. The active rollers 11 in the two sets of belt conveyor mechanisms are both installed with sprockets using pins, and the second and third sprockets on the intermediate shaft 7 are respectively connected to the sprockets on the two active rollers 11 through chains. At this time, the two active rollers 11 rotate synchronously, and the two sets of belt conveyor mechanisms operate synchronously.

[0028] In this specific embodiment, the auxiliary pushing mechanism specifically adopts the following structure: the auxiliary pushing mechanism includes a cylinder 1 41, the cylinder body of the cylinder 1 41 is fixed to the right end of the frame 1, and the telescopic direction of the piston rod of the cylinder 1 41 is parallel to the length direction of the slide slot. The telescopic end of the piston rod of the cylinder 1 41 is fixed to the cart 4 by bolts, and the bottom of the cart 4 is equipped with wheels.

[0029] like Figure 3 As shown, a push rod 53 is provided on the trolley 4, and the middle position of the push rod 53 is hingedly connected to the trolley 4 through a hinge shaft. A sleeve 52 is sleeved on one end of the push rod 53 close to the next station, and bolt holes are preset on the sleeve 52, and through holes corresponding to these bolt holes are provided on the push rod 53. When the position of the sleeve 52 needs to be fixed, the bolts only need to be accurately passed through the bolt holes of the sleeve 52 and the through holes of the push rod 53, and then the bolts are tightened, so that the sleeve 52 can be easily locked on the push rod 53. One end of the sleeve 52 is sleeved on the outside of the push rod 53, and a push head 5 is welded on the other end of the sleeve 52, and a buffer pad 51 is bonded on the side of the push head 5 away from the sleeve 52.

[0030] like Figure 2As shown, a control mechanism is provided at the end of the push rod 53 away from the next workstation, and the control mechanism includes a cylinder 54. The cylinder body of the cylinder 54 is hingedly connected to the trolley 4 through a hinge shaft, and the telescopic end of the piston rod of the cylinder 54 is hingedly connected to the end of the push rod 53 away from the next workstation through a hinge shaft.

[0031] Photoelectric sensors 1 2 are installed on both sides of the middle position of the rack 1 by bolts, and the photoelectric sensor 1 2 on one side is responsible for emitting photoelectric signals, while the other side is responsible for receiving these signals. Similarly, photoelectric sensors 2 3 are installed on both sides of the left end of the rack 1 by bolts, and the photoelectric sensor 2 3 on one side is responsible for emitting photoelectric signals, while the other side is responsible for receiving these signals.

[0032] The specific use process of the utility model is as follows: in the initial state, the motor 6 drives the active roller 11 to rotate through a two-stage chain transmission, and the active roller 11 and the driven roller 12 work together to drive the conveyor belt 13 to move stably. When the sand mold is placed on the conveyor belt 13, the conveyor belt 13 starts from the right end of the frame 1 and transports the sand mold steadily to the left end.

[0033] When the sand mold moves to the position of photoelectric sensor 12, it will temporarily block the incident light of photoelectric sensor 12, causing the first change in the signal of photoelectric sensor 2. As the sand mold passes completely, the incident light is restored, and the signal of photoelectric sensor 2 changes for the second time. After detecting the restoration of light, photoelectric sensor 2 transmits the command to the control system after a short delay, triggering the telescopic end of the piston rod of cylinder 2 54 to contract, so that the end of the push rod 53 close to the push head 5 rises, ensuring that the height of the push head 5 is higher than the conveyor belt 13. At the same time, the telescopic end of the piston rod of cylinder 141 extends, pushing the cart 4 to move toward the sand mold at the same speed as the sand mold. At this time, the speed of the cart 4, the sand mold and the conveyor belt 13 is the same, which can prevent the push head 5 from contacting the sand mold before the sand mold reaches the next station, thereby causing the push head 5 to crush the sand mold or the sand mold and the conveyor belt 13 to be damaged due to relative sliding. When the sand mold encounters an obstacle at the left end of the frame 1, the push head 5 will contact the sand mold, and at this time, the push head 5 will effectively push the sand mold to the specified position.

[0034] In addition, the photoelectric sensor 2 3 is located downstream of the sand mold transportation path, and it will control the entire transportation process according to the real-time status of the next station. If the next station is not ready, the photoelectric sensor 2 3 will immediately send a signal to the control system to stop the operation of cylinder 1 41, cylinder 2 54 and motor 6. On the contrary, if the station is ready, the photoelectric sensor 2 3 will allow cylinder 1 41, cylinder 2 54 and motor 6 to continue to operate.

[0035] In addition, if the length of the sand mold exceeds the distance between photoelectric sensor 1 2 and photoelectric sensor 2 3, that is, the front end of the sand mold has reached photoelectric sensor 2 3, but the rear end has not left photoelectric sensor 1 2, as long as photoelectric sensor 2 3 confirms that the next workstation is ready, the conveyor belt 13 will continue to work until the sand mold completely passes through photoelectric sensor 1 2.

[0036] After completing the transportation and pushing tasks of the sand mold, the telescopic end of the piston rod of cylinder one 41 will shrink, so that the trolley 4 returns to the initial position; at the same time, the telescopic end of the piston rod of cylinder two 54 will extend again, lowering the height of the push head 5 to below the conveyor belt 13, ready for the next round of transportation tasks.

[0037] It can be seen from the above embodiments that the beneficial effect of the utility model is that photoelectric sensor 1 and photoelectric sensor 2 can control the states of the auxiliary push mechanism and the belt conveyor mechanism respectively. The belt conveyor mechanism can transfer the sand mold to different workstations. When it is necessary to transport the sand mold to an unpowered workstation, the auxiliary push mechanism can cooperate with the belt conveyor mechanism to ensure that the sand mold arrives at the unpowered workstation platform smoothly and accurately. In summary, when the belt conveyor mechanism is unable to push the sand mold to the predetermined position due to insufficient friction, the auxiliary push mechanism can provide the necessary thrust, thereby ensuring that the sand mold reaches the target position smoothly. No manual intervention is required in the entire process, which not only eliminates safety hazards, but also significantly improves production efficiency and the utilization rate of human resources.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sand mold conveying device for casting, characterized in that: The invention comprises a frame (1), the frame (1) is provided with a belt conveying mechanism, the belt conveying mechanism can transport sand molds; the frame (1) is also provided with an auxiliary pushing mechanism, the auxiliary pushing mechanism can push the sand molds to a non-powered workstation; the auxiliary pushing mechanism comprises a cylinder (41), the cylinder (41) is fixed on the frame (1), the extension direction of the piston rod of the cylinder (41) is parallel to the conveying direction of the sand molds, and a trolley (4) is fixed to the extension end of the piston rod, the trolley (4) 4) is provided with a push head (5), which can be raised and lowered in the vertical direction; one side of the push head (5) is fixedly connected to one end of a push rod (53), the middle position of the push rod (53) is hinged to the trolley (4), and the other end of the push rod (53) is provided with a control mechanism; the control mechanism includes a cylinder 2 (54), the cylinder body of the cylinder 2 (54) is hinged to the trolley (4), and the telescopic end of the piston rod of the cylinder 2 (54) is hinged to the other end of the push rod (53).

2. The sand mold conveying device for casting molding according to claim 1 is characterized in that: The belt conveying mechanism comprises two groups, the two groups of belt conveying mechanisms are respectively located on two sides of the frame (1), and the auxiliary pushing mechanism is located between the two groups of belt conveying mechanisms.

3. The sand mold conveying device for casting molding according to claim 1 is characterized in that: A buffer pad (51) is fixed to the other side of the pusher head (5).

4. The sand mold conveying device for casting molding according to claim 1 is characterized in that: It also comprises a sleeve (52), one end of which is fixedly connected to the push head (5), and the other end of which is sleeved on the outside of the push rod (53), and the sleeve (52) can slide and lock along the length direction of the push rod (53).

5. The sand mold conveying device for casting molding according to claim 2, characterized in that: Photoelectric sensors 1 (2) are fixed on both sides of the middle position of the frame (1).

6. The sand mold conveying device for casting molding according to claim 2, characterized in that: Photoelectric sensors 2 (3) are fixed on both sides of the left end of the frame (1).

7. The sand mold conveying device for casting molding according to claim 2, characterized in that: The belt conveying mechanism comprises a driving roller (11) and a driven roller (12), and a conveying belt (13) is installed between the driving roller (11) and the driven roller (12).

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