Feeding mechanism and core making equipment

Abstract

The invention belongs to the technical field of core making equipment, and discloses a feeding mechanism and core making equipment, and the feeding mechanism comprises a mounting frame, a sand feeding barrel, an opening and closing piece, a synchronizing piece and a transmission assembly. The mounting frame is connected with the moving part of the manipulator. The upper sand barrel is arranged on the mounting frame, is used for storing sand materials, and is communicated with a sand adding opening of the core making machine through a discharging opening. And the opening and closing piece is movably arranged on the mounting frame and located below the mounting frame, and the opening and closing piece is configured to control opening and closing of the discharging opening. The synchronous part is arranged on the mounting frame in a sliding mode, and the synchronous part can abut against the core making machine and slide. The transmission assembly is arranged between the synchronous part and the opening and closing part and is configured to transmit force generated by sliding of the synchronous part to the opening and closing part so as to drive the opening and closing part to open the discharging port. The vertical displacement of the manipulator is used as a power source, parts such as a cylinder and a matched air pipe are omitted, and the use cost is low. And meanwhile, the winding and breakage risks in the follow-up process of the air pipe are avoided, and the movement flexibility is high.

Description

Technical Field

[0001] The present invention relates to the technical field of core-making equipment, and particularly relates to a feeding mechanism and a core-making equipment. Background Art

[0002] A core-making machine is a key equipment in the casting industry for manufacturing sand cores. By compacting molding sand into a core with a specific shape, it provides cavity support for metal casting. As a core component of the core-making machine, the feeding mechanism is responsible for accurately transporting sand materials to the sand-adding port of the core-making machine to fill the mold cavity.

[0003] Currently, traditional feeding mechanisms mostly use air cylinders to drive the blanking gate, and control the opening and closing of the gate plate through compressed air. It is necessary to equip air pipes to move synchronously with the feeding mechanism to the sand-adding port of the core-making machine, resulting in frequent bending and stretching of the air pipes, and having the following technical defects:

[0004] 1. The movement flexibility is limited, and faults such as air pipe entanglement or breakage are likely to occur;

[0005] 2. Supporting components such as air cylinders and air valves have complex structures and high usage costs.

[0006] Therefore, the above problems need to be solved urgently. Summary of the Invention

[0007] The purpose of the present invention is to provide a feeding mechanism and a core-making equipment to reduce the usage cost and improve the movement flexibility.

[0008] To achieve this purpose, the present invention adopts the following technical solutions:

[0009] A feeding mechanism, which includes:

[0010] A mounting frame, connected to the moving part of the manipulator;

[0011] An upper sand bucket, arranged on the mounting frame, the upper sand bucket is used for storing sand materials, and the upper sand bucket is communicated with the sand-adding port of the core-making machine through a discharge port;

[0012] An opening and closing member, movably arranged on the mounting frame and located below the mounting frame, the opening and closing member is configured to control the opening and closing of the discharge port;

[0013] A synchronizing member, slidably arranged on the mounting frame, the synchronizing member can abut against the core-making machine and slide;

[0014] A transmission assembly, arranged between the synchronizing member and the opening and closing member, the transmission assembly is configured to transmit the force generated by the sliding of the synchronizing member to the opening and closing member to drive the opening and closing member to open the discharge port.

[0015] Preferably, the feeding mechanism further comprises a lower sand bucket arranged in a straight cylindrical shape, the lower sand bucket is vertically arranged on the mounting frame, and the lower sand bucket is located below the mounting frame, the lower sand bucket is connected to the upper sand bucket, and the discharge port is opened at the lower side of the lower sand bucket.

[0016] Preferably, the opening and closing member comprises two gates which can rotate relative to or away from each other and synchronously to open or close the discharge port.

[0017] Preferably, the synchronization element comprises:

[0018] A bearing portion, on which the two gate plates are rotatably disposed;

[0019] A sliding portion, disposed on the bearing portion, wherein the sliding portion is slidably matched with the mounting frame;

[0020] An elastic telescopic portion, disposed between the bearing portion and the mounting frame;

[0021] The abutting portion is arranged on the bearing portion, and the abutting portion is used for abutting against the core making machine.

[0022] Preferably, the transmission assembly comprises:

[0023] A rack, vertically arranged on the mounting frame;

[0024] Two first gears, one of the first gears is coaxially arranged on each of the rotating shafts of the two gate plates, and the rack is meshed with any of the first gears;

[0025] A transmission gear is rotatably disposed on the bearing portion, and the two first gears are transmission-connected via the transmission gear.

[0026] Preferably, the length of the abutting portion is adjustable.

[0027] Preferably, the synchronizer further comprises a limiting portion arranged on the mounting frame, wherein the limiting portion can abut against the bearing portion to limit a maximum sliding distance of the bearing portion.

[0028] Preferably, the synchronizer further comprises a linear bearing arranged on the bearing portion, the sliding portion is slidingly matched with the linear bearing, and the elastic telescopic portion is a compression spring sleeved on the sliding portion.

[0029] Preferably, the upper sand bucket is mounted on the mounting frame via a vibration-damping pad.

[0030] A core-making device, which includes a manipulator, a core-making machine, and the above-mentioned feeding mechanism. The manipulator is used to drive the feeding mechanism to move above the core-making machine, so that the feeding port of the feeding mechanism is directly above the sand-adding port of the core-making machine.

[0031] Advantages of the present invention:

[0032] The feeding mechanism provided by the present invention uses the vertical displacement of the manipulator as the power source. Compared with the traditional pneumatic drive method, it eliminates components such as cylinders and supporting air pipes, has a simple structure, and low usage cost. At the same time, it avoids the risks of winding and breaking of the air pipe during the follow-up process, and greatly improves the movement flexibility. Description of the drawings

[0033] Figure 1 is a schematic structural diagram of the core-making device provided by the present invention;

[0034] Figure 2 is a schematic structural diagram of the feeding mechanism provided by the present invention;

[0035] Figure 3 is Figure 2 an enlarged view of part A in

[0036] In the figure:

[0037] 100, manipulator; 200, core-making machine; 300, sand-adding port;

[0038] 1, mounting frame;

[0039] 2, upper sand bucket; 21, shock-absorbing pad;

[0040] 3, opening and closing member; 31, shutter;

[0041] 4, synchronizing member; 41, bearing part; 42, sliding part; 43, elastic telescopic part; 44, abutting part; 45, limiting part;

[0042] 5, transmission component; 51, rack; 52, first gear;

[0043] 6, lower sand bucket. Detailed implementation manners

[0044] Before explaining any implementation manner of the present application in detail, it should be understood that the present application is not limited to the structural details and component arrangements described in the following description or shown in the above drawings.

[0045] In this application, the terms "comprising", "including", "having" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element.

[0046] In this application, the term "and / or" describes the relationship between associated objects and indicates that three relationships may exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump may represent: the sole existence of a centrifugal vortex magnetic pump, the simultaneous existence of a centrifugal vortex magnetic pump and a centrifugal vortex magnetic pump, and the sole existence of a centrifugal vortex magnetic pump. Additionally, in this application, the character " / " generally indicates that the associated objects before and after are in an "and / or" relationship.

[0047] In this application, the terms "connected", "combined", "coupled", "installed" may be direct connection, combination, coupling or installation, or may be indirect connection, combination, coupling or installation. Among them, by way of example, direct connection means that two parts or components are connected together without the need for an intermediate member, and indirect connection means that two parts or components are respectively connected to at least one intermediate member, and these two parts or components are connected through the intermediate member. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling and may include electrical connection or coupling.

[0048] In this application, those of ordinary skill in the art will understand that relative terms used in connection with a quantity or condition (such as "about", "approximately", "substantially", etc.) are intended to include the stated value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances caused by manufacturing, assembly, use in relation to a particular value, etc. Such terms should also be considered to disclose a range defined by the absolute values of two endpoints. Relative terms may refer to a plus or minus a certain percentage (such as 1%, 5%, 10% or more) of the indicated value. A numerical value without the use of a relative term should also be disclosed as a particular value with a tolerance. In addition, when expressing a relative angular position relationship (such as substantially parallel, substantially perpendicular), "substantially" may refer to a plus or minus a certain number of degrees (such as 1 degree, 5 degrees, 10 degrees or more) based on the indicated angle.

[0049] In the present application, those of ordinary skill in the art will understand that the functions performed by components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by parts can also be performed by one part, one component, or a combination of multiple parts.

[0050] In the present application, the orientation terms such as "upper", "lower", "left", "right", "front", and "rear" are described based on the orientation and positional relationship shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that one element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element. It should also be understood that the orientation terms such as the upper side, lower side, left side, right side, front side, and rear side not only represent the positive orientation, but can also be understood as the side orientation. For example, the lower side can include directly below, lower left, lower right, lower front, and lower rear, etc.

[0051] Please refer to Figures 1 to 3 , this embodiment provides a feeding mechanism, which includes a mounting frame 1, an upper sand bucket 2, an opening and closing member 3, a synchronizing member 4, and a transmission assembly 5. Among them, the mounting frame 1 is connected to the moving part of the manipulator 100. The upper sand bucket 2 is arranged on the mounting frame 1, and the upper sand bucket 2 is used to store sand material. The upper sand bucket 2 is communicated with the sand adding port 300 of the core making machine 200 through a discharge port. The opening and closing member 3 is movably arranged on the mounting frame 1 and is located below the mounting frame 1. The opening and closing member 3 is configured to control the opening and closing of the discharge port. The synchronizing member 4 is slidably arranged on the mounting frame 1, and the synchronizing member 4 can abut against the core making machine 200 and slide. The transmission assembly 5 is arranged between the synchronizing member 4 and the opening and closing member 3. The transmission assembly 5 is configured to transmit the force generated by the sliding of the synchronizing member 4 to the opening and closing member 3 to drive the opening and closing member 3 to open the discharge port.

[0052] During sand feeding, first, the manipulator 100 drives the mounting frame 1 above the core making machine 200 so that the feeding port is directly above the sand adding port 300 of the core making machine 200. Subsequently, the manipulator 100 drives the mounting frame 1 to descend. The synchronizing member 4 first contacts the frame of the core making machine 200 and stops moving, while the mounting frame 1 continues to descend under the drive of the manipulator 100, resulting in the synchronizing member 4 sliding upward relative to the mounting frame 1. This sliding movement is converted into the driving force of the opening and closing member 3 through the transmission assembly 5, thereby opening the discharge port to achieve sand filling. When closing, first, the manipulator 100 lifts the mounting frame 1, the synchronizing member 4 is separated from the core making machine 200, the transmission assembly 5 loses the supporting force, and the opening and closing member 3 resets under the action of gravity to close the discharge port.

[0053] With such a setting, the vertical displacement of the manipulator 100 is used as the power source. Compared with the traditional pneumatic drive method, components such as cylinders and supporting air pipes are eliminated, the structure is simple, and the use cost is low. At the same time, the risk of winding and breaking of the air pipe during the follow-up process is avoided, and the movement flexibility is greatly improved.

[0054] During the sand adding process of the traditional feeding mechanism, there is a certain angle between the discharge port and the sand adding port 300 of the core making machine 200. During sand adding, sand accumulation problems are likely to occur, resulting in sand accumulation easily falling onto the air distribution plate during core making. While affecting the core making quality, it is also easy to cause the sealing strip of the air distribution plate to fall off. Maintenance and replacement require manual handling and hoisting, with high manual labor intensity and low efficiency.

[0055] For this reason, in this embodiment, the feeding mechanism further includes a lower sand bucket 6 arranged in a straight cylinder shape. The lower sand bucket 6 is vertically arranged on the mounting frame 1, and the lower sand bucket 6 is located below the mounting frame 1. The lower sand bucket 6 is communicated with the upper sand bucket 2, and the discharge port is opened on the lower side of the lower sand bucket 6.

[0056] It can be understood that by adding a vertically straight cylinder-shaped lower sand bucket 6 to form a vertical sand falling channel, the sand material is coaxially injected into the sand adding port 300 of the core making machine 200 in the direction of gravity, which can increase the sand flow velocity and have no dead retention corners, completely eliminating the sand accumulation hidden danger caused by the traditional inclined discharge port, thereby preventing the failure of the sealing strip caused by sand accumulation falling onto the air distribution plate.

[0057] To further reduce the hidden danger of sand accumulation, the opening and closing member 3 includes two gate plates 31 that can rotate relatively or away from each other and synchronously to open or close the discharge port. With such a setting, the two gate plates 31 can form a centrosymmetric opening and closing structure, so that the center of the discharge port coincides with the center of gravity of the sand flow, and further reduce the situation of sand material splashing onto the frame of the core making machine 200. That is, the two gate plates 31 are synchronously opened with the center of the discharge port as the rotation axis, and the sand material is vertically injected into the sand adding port 300 of the core making machine 200 along the axis of the vertical lower sand bucket 6, and the sand flow presents a symmetric divergent shape, significantly reducing the risk of sputtering around. In addition, the synchronous rotation of the two gate plates 31 realizes high-precision flow control, enhances the anti-impact stiffness, and can be compatible with various particle size sand materials.

[0058] Specifically, the synchronizing member 4 includes a bearing part 41, a sliding part 42, an elastic telescopic part 43, and an abutting part 44. The two gate plates 31 are rotatably arranged on the bearing part 41. The sliding part 42 is arranged on the bearing part 41, and the sliding part 42 is slidably matched with the mounting frame 1. The elastic telescopic part 43 is arranged between the bearing part 41 and the mounting frame 1. The abutting part 44 is arranged on the bearing part 41, and the abutting part 44 is used to abut against the core making machine 200.

[0059] It can be understood that the elastic telescopic part 43 uses its own elastic force to drive the synchronous part 4 to reset when the manipulator 100 lifts the mounting frame 1, thereby returning the gate 31 to the closed state, realizing automatic closure of the discharge port, so that the discharge port can be closed more securely, and the gate 31 can fit tightly against the discharge port of the lower sand bucket 6 when closed, forming a good seal to prevent leakage.

[0060] In this embodiment, the transmission assembly 5 includes a rack 51, two first gears 52 and a transmission gear. The rack 51 is vertically arranged on the mounting frame 1. A first gear 52 is coaxially arranged on each of the rotating shafts of the two gate plates 31, and the rack 51 is meshed with any of the first gears 52. The transmission gear is rotatably arranged on the bearing portion 41, and the two first gears 52 are connected through the transmission gear.

[0061] In this way, the two first gears 52 are connected by the transmission gear, which can ensure that the rotating shafts of the two gates 31 rotate synchronously, thereby effectively avoiding the movement deviation when the gates 31 are opened and closed, ensuring the symmetrical closure of the discharge port, and preventing the leakage of sand materials due to the delay of unilateral closure. In addition, the vertical layout of the rack 51 directly meshing with the first gear 52 converts the linear motion of the mounting frame 1 into the rotational motion of the gate 31, which helps to improve the action response speed. It should be noted that in other embodiments, the transmission assembly 5 can also adopt a connecting rod transmission structure, and this embodiment does not make specific requirements and restrictions on this.

[0062] It is worth noting that there are differences in the height or structure of the feed port of different models of core making machines 200. In order to make the feeding mechanism adaptable to various models of core making machines 200, the length of the abutment portion 44 is adjustable. In addition, during the debugging process, if there is a deviation in the relative position of the core making machine 200 and the mounting frame 1, the abutment portion 44 can actively adapt to the actual spacing by adjusting the length to ensure that the abutment surface is tightly fitted with the feed port of the core making machine 200 to avoid structural deformation caused by hard contact. In the present embodiment, the abutment portion 44 adopts a threaded adjustment structure to achieve length adjustment, so it is not described in detail. In other embodiments, a wedge adjustment structure, a worm gear adjustment structure, etc. can also be used.

[0063] Preferably, the synchronizer 4 further includes a limit portion 45 disposed on the mounting frame 1, and the limit portion 45 can abut against the bearing portion 41 to limit the maximum sliding distance of the bearing portion 41. Further, the synchronizer 4 further includes a linear bearing disposed on the bearing portion 41, the sliding portion 42 is slidably matched with the linear bearing, and the elastic telescopic portion 43 is a compression spring sleeved on the sliding portion 42.

[0064] It is understandable that the cooperation between the sliding part 42 and the linear bearing provides precise guidance for the sliding of the bearing part 41. The linear bearing can effectively constrain the movement trajectory of the sliding part 42, reduce deviation and shaking, and make the bearing part 41 move smoothly along the vertical direction, ensuring the accuracy of the opening and closing action of the gate 31, while reducing friction, making the sliding process of the bearing part 41 smoother. It is also understandable that the compression spring sleeved on the sliding part 42 acts as an elastic telescopic part 43, which plays a buffering role during the movement of the bearing part 41. In addition, the sliding part 42 can guide the telescopic direction of the compression spring.

[0065] During the sand adding process, the upper sand bucket 2 may vibrate due to operations such as pouring sand, so the upper sand bucket 2 is mounted on the mounting frame 1 through a vibration-damping pad 21. The use of the vibration-damping pad 21 as the mounting structure can effectively reduce the vibration transmission between the upper sand bucket 2 and the mounting frame 1, thereby reducing the risk of loosening, wear and even damage of components caused by vibration, and extending the service life of the equipment. It should be noted that the vibration-damping pad 21 is a prior art, and the specific model can be selected according to the actual application scenario. This embodiment does not make specific requirements and restrictions on this.

[0066] This embodiment further provides a core-making device, which includes a manipulator 100, a core-making machine 200 and the above-mentioned feeding mechanism, wherein the manipulator 100 is used to drive the feeding mechanism to move above the core-making machine 200, so that the feeding port of the feeding mechanism is located directly above the sand feeding port 300 of the core-making machine 200. It can be understood that the core-making device including the above-mentioned feeding mechanism has low use cost.

[0067] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A feeding mechanism, characterized in that: include: A mounting frame (1) connected to a moving part of the manipulator (100); An upper sand bucket (2) is arranged on the mounting frame (1), the upper sand bucket (2) is used to store sand materials, and the upper sand bucket (2) is connected to a sand supply port (300) of a core making machine (200) through a material discharge port; An opening and closing member (3) is movably arranged on the mounting frame (1) and is located below the mounting frame (1), and the opening and closing member (3) is configured to control the opening and closing of the discharge port; A synchronous member (4) is slidably disposed on the mounting frame (1), and the synchronous member (4) can abut against the core making machine (200) and slide; A transmission assembly (5) is arranged between the synchronous member (4) and the opening and closing member (3), and the transmission assembly (5) is configured to transmit the force generated by the sliding of the synchronous member (4) to the opening and closing member (3), so as to drive the opening and closing member (3) to open the discharge port.

2. A feeding mechanism according to claim 1, characterized in that: The feeding mechanism further comprises a lower sand bucket (6) arranged in a straight cylindrical shape, wherein the lower sand bucket (6) is vertically arranged on the mounting frame (1), and the lower sand bucket (6) is located below the mounting frame (1), the lower sand bucket (6) is connected to the upper sand bucket (2), and the discharge port is opened at the lower side of the lower sand bucket (6).

3. A feeding mechanism according to claim 1, characterized in that: The opening and closing member (3) comprises two gate plates (31) which can rotate relative to or away from each other and synchronously to open or close the discharge port.

4. A feeding mechanism according to claim 3, characterized in that: The synchronizer (4) comprises: A bearing portion (41), on which the two gate plates (31) are rotatably disposed; A sliding portion (42) is arranged on the bearing portion (41), and the sliding portion (42) is slidably matched with the mounting frame (1); An elastic telescopic portion (43) is arranged between the bearing portion (41) and the mounting frame (1); The abutment portion (44) is arranged on the bearing portion (41), and the abutment portion (44) is used to abut against the core making machine (200).

5. A feeding mechanism according to claim 4, characterized in that: The transmission assembly (5) comprises: A rack (51) vertically arranged on the mounting frame (1); Two first gears (52), one of the first gears (52) being coaxially arranged on the rotating shafts of the two gate plates (31), and the rack (51) being meshed with any of the first gears (52); A transmission gear is rotatably arranged on the bearing portion (41), and the two first gears (52) are transmission-connected via the transmission gear.

6. A feeding mechanism according to claim 4, characterized in that: The length of the abutting portion (44) is adjustable.

7. A feeding mechanism according to claim 4, characterized in that: The synchronizer (4) further comprises a limiting portion (45) arranged on the mounting frame (1), wherein the limiting portion (45) is capable of abutting against the bearing portion (41) to limit the maximum sliding distance of the bearing portion (41).

8. A feeding mechanism according to claim 4, characterized in that: The synchronizer (4) further comprises a linear bearing arranged on the bearing portion (41), the sliding portion (42) slidingly cooperates with the linear bearing, and the elastic telescopic portion (43) is a compression spring sleeved on the sliding portion (42).

9. A feeding mechanism according to claim 1, characterized in that: The upper sand bucket (2) is mounted on the mounting frame (1) via a vibration-damping pad (21).

10. A core making device, characterized in that: The invention comprises a robot (100), a core-making machine (200), and a feeding mechanism as described in any one of claims 1 to 9, wherein the robot (100) is used to drive the feeding mechanism to move above the core-making machine (200) so that the feeding port of the feeding mechanism is located directly above the sand feeding port (300) of the core-making machine (200).

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