A quick mold changing device

Abstract

The present invention discloses a rapid mold changing device, which relates to the technical field of core making machine mold switching, specifically a core making machine frame and a mold, wherein a mold closing cylinder is horizontally arranged on the upper left side of the core making machine frame, a movable mold turning cylinder is installed above the core making machine guide column, a fixed mold mounting clamping plate is installed at the other end of the core making machine guide column, an electric cylinder is arranged at the bottom of the core making machine frame, an ejection mechanism guide column is vertically penetrated inside the ejection mechanism base, a mold mounting clamping plate is arranged above the ejection mechanism connecting plate, a mold mounting clamping plate is installed below the mold mounting clamping plate, and a mold mounting clamping plate is installed on the mold mounting clamping plate. The rapid mold changing device adopts a mold mounting clamping plate to replace a crane, eliminates the crane hoisting, improves safety, and reduces the space requirement for the equipment. At the same time, the mold changing device has fast position movement, rapid mold closing and mold changing, and high mold positioning accuracy without repeated adjustment.

Description

Technical Field

[0001] The invention relates to the technical field of core-making machine switching molds, in particular to a rapid mold-changing device. Background Art

[0002] A core making machine, a general term for core shooters and shell core machines, uses a hot core box process to produce coated sand shell cores. Sand filling and compaction are completed simultaneously, with the sand hardening occurring immediately in the hot core box. This reduces labor intensity, offers flexible and easy-to-use operation, and utilizes electric heating with automatic temperature control, ensuring a clean work area. This facilitates the mechanization and automation of the core making process.

[0003] In the production process of coated sand shell cores, in order to ensure production quality, it is necessary to complete continuous mold changing actions, which requires the use of a mold changing device to assist.

[0004] At present, the core-making machine uses a crane to lift the mold when switching molds. This is highly dangerous, has a slow lifting speed, low mold installation and positioning accuracy, and is not suitable for automated core-making equipment. Therefore, a mold changing device that can meet the requirements of fast, safe, and precise positioning is needed. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a rapid mold changing device, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a quick mold changing device, comprising a core making machine frame and a mold, a mold closing cylinder is horizontally provided on the left side above the core making machine frame, and the output end of the mold closing cylinder is connected to the core making machine guide column, a movable mold turning cylinder is installed above the core making machine guide column, and the output end of the movable mold turning cylinder is connected to the movable mold mounting clamping plate, the other end of the core making machine guide column is installed with a fixed mold mounting clamping plate, an electric cylinder is provided at the bottom of the core making machine frame, and the bottom surface of the core making machine frame is screwed to an ejection mechanism base, the interior of the ejection mechanism base is vertically penetrated by an ejection mechanism guide column, and the ejector mechanism guide column is vertically penetrated by the ejector mechanism guide column. The top of the ejection mechanism guide column is fixed with an ejection mechanism connecting plate, and a mold car mounting clamping plate is provided above the ejection mechanism connecting plate, and the mold car guide columns are connected to the bottom of both ends of the mold car mounting clamping plate, and a mold car frame is installed below the mold car guide column, and a mold car guide wheel is provided on the outer side of the bottom end of the mold car frame, and a mold car guide rail is arranged below the mold car guide wheel, and a mold car guide rail base is arranged at the outer end of the mold car guide rail, and the mold car guide rail base is fixed on both sides of the bottom surface of the core making machine frame, a positioning pin is vertically fixed to the middle of the upper surface of the mold car mounting clamping plate, and the mold is placed above the mold car mounting clamping plate.

[0007] Optionally, there are four core-making machine guide pillars in total, and both ends of the core-making machine guide pillars are respectively combined with plates to form a telescopic structure with the mold clamping cylinder.

[0008] Optionally, the fixed mold mounting plate is sleeved on the outside of the end of the core making machine guide column, and the fixed mold mounting plate and the core making machine guide column are connected by bolts.

[0009] Optionally, the lower surface of the movable mold mounting plate is matched with the upper surface of the mold, and the movable mold mounting plate forms a turning structure through the movable mold turning cylinder and the core making machine guide column.

[0010] Optionally, plug blocks are welded on both sides of the upper surface of the ejection mechanism connecting plate, and groove blocks are correspondingly fixed on both sides of the lower surface of the mold frame vehicle mounting clamping plate, and the sizes of the groove blocks and the plug blocks match.

[0011] Optionally, the ejection mechanism guide columns vertically penetrate the inside of both sides of the ejection mechanism base, and the ejection mechanism guide columns form a liftable structure with the core making machine frame through the electric cylinder.

[0012] Optionally, sliding columns are vertically welded at both ends of the bottom surface of the formwork vehicle frame, and the sliding columns are respectively inserted into the inner ends of the guide wheels of the formwork vehicle.

[0013] Optionally, the formwork vehicle guide columns vertically penetrate the inside of both sides of the formwork vehicle frame, and the formwork vehicle guide columns and the formwork vehicle mounting plates are detachable structures.

[0014] Optionally, the dimensions of the guide wheel of the formwork vehicle and the guide rail of the formwork vehicle match each other, and the wheel groove section of the guide wheel of the formwork vehicle and the rail section of the guide rail of the formwork vehicle are both "V" shaped.

[0015] The present invention provides a quick mold changing device, which has the following beneficial effects:

[0016] 1. The rapid mold changing device uses a mold carriage instead of a crane, eliminating crane hoisting, which improves safety and reduces space requirements for the equipment. At the same time, the mold changing device can move quickly, close and change molds quickly, and has high mold positioning accuracy without repeated adjustments.

[0017] 2. This quick mold-changing device controls the movement of the core-making machine guide post through the mold-closing cylinder to achieve the closing of the movable mold clamping plate and the mold. The connection between the fixed mold clamping plate and the core-making machine guide post is simple, and disassembly and assembly are convenient, which facilitates maintenance. It is also convenient to fix or calibrate the position and angle of the fixed mold clamping plate, thereby improving the quality of mold closing and switching. The movable mold clamping plate is used to clamp the mold, and the mold can be flipped by the movable mold flipping cylinder.

[0018] 3. The quick mold-changing device ensures the alignment between the mold carriage mounting plate and the ejection mechanism connecting plate through the cooperation between the insert block and the slot block, so that when the ejection mechanism connecting plate is pushed onto the mold carriage mounting plate, it is firmly stuck between the mold carriage mounting plate and the problem of relative sliding will not easily occur, effectively ensuring the stability of the mold carriage mounting plate when moving up and down. The ejection mechanism guide column obtains the up and down movement power through the electric cylinder, thereby realizing the rising and falling of the mold carriage mounting plate, and the movement is smooth and reliable, ensuring the positioning accuracy of the mold.

[0019] 4. The quick mold changing device is a combination of a mold trolley frame and a mold trolley guide wheel. The mold trolley guide wheel is the horizontal running wheel of the mold trolley frame. In this way, the position of the mold trolley can be adjusted accordingly in the horizontal direction to move the mold to the correct position accurately, quickly and efficiently to complete the work. Along the mold trolley guide rail, the mold trolley guide wheel can move horizontally smoothly, and the "V"-shaped connecting part makes the mold trolley guide wheel and the mold trolley guide rail well connected, with less wear, long service life, and no derailment.

[0020] 5. The quick mold changing device supports the mold mounting plate through the mold mounting guide column and guides the up and down movement of the mold mounting plate, so that the mold mounting plate can move up and down more smoothly. The mold mounting guide column is easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the present invention when the mold is closed;

[0022] Figure 2 It is a schematic structural diagram of the present invention during demoulding.

[0023] In the figure: 1. Core making machine frame; 2. Clamping cylinder; 3. Core making machine guide column; 4. Moving mold turning cylinder; 5. Moving mold mounting plate; 6. Fixed mold mounting plate; 7. Electric cylinder; 8. Ejector mechanism base; 9. Ejector mechanism guide column; 10. Ejector mechanism connecting plate; 1001. Insert block; 11. Mold mounting plate; 1101. Slot block; 12. Mold guide column; 13. Mold frame; 1301. Slide column; 14. Mold guide wheel; 15. Mold guide rail; 16. Mold guide rail base; 17. Positioning pin; 18. Mold. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0027] See also Figures 1 to 2 The present invention provides a technical solution: a quick mold changing device, including a core making machine frame 1 and a mold 18, a mold closing cylinder 2 is horizontally arranged on the left side above the core making machine frame 1, and the output end of the mold closing cylinder 2 is connected to the core making machine guide column 3, a movable mold turning cylinder 4 is installed above the core making machine guide column 3, and the output end of the movable mold turning cylinder 4 is connected to the movable mold mounting clamping plate 5, a total of four core making machine guide columns 3 are provided, and the two ends of the core making machine guide columns 3 are respectively combined with the mold closing cylinder 2 through plates to form a telescopic structure, the mold closing cylinder 2 can control the core making machine guide columns 3 to move in the horizontal direction, so as to realize the closing between the movable mold mounting clamping plate 5 and the mold 18, and the other end of the core making machine guide column 3 A fixed mold mounting plate 6 is installed, and the fixed mold mounting plate 6 is sleeved on the outside of the end of the core making machine guide column 3, and the fixed mold mounting plate 6 and the core making machine guide column 3 are bolted. The connection between the fixed mold mounting plate 6 and the core making machine guide column 3 is simple, easy to disassemble and assemble, and convenient for maintenance. It is also convenient to fix or calibrate the position and angle of the fixed mold mounting plate 6, thereby improving the quality of mold closing and switching of the mold 18. The lower surface of the movable mold mounting plate 5 is matched with the upper surface of the mold 18, and the movable mold mounting plate 5 forms a turning structure with the core making machine guide column 3 through the movable mold turning cylinder 4. The movable mold mounting plate 5 is used to clamp the mold 18, and the purpose of turning the mold 18 can be achieved by the movable mold turning cylinder 4;

[0028] An electric cylinder 7 is provided at the bottom of the core making machine frame 1, and the bottom surface of the core making machine frame 1 is screwed to the ejection mechanism base 8, the inside of the ejection mechanism base 8 is vertically penetrated by an ejection mechanism guide column 9, and the top of the ejection mechanism guide column 9 is fixed with an ejection mechanism connecting plate 10, a mold frame car mounting clamping plate 11 is provided above the ejection mechanism connecting plate 10, and the mold frame car mounting clamping plate 11 is connected to the mold frame car guide column 12 at both ends. Insert blocks 1001 are welded on both sides of the upper surface of the ejection mechanism connecting plate 10, and slot blocks 1101 are fixed on both sides of the lower surface of the mold frame car mounting clamping plate 11, and the sizes of the slot block 1101 and the insert block 1001 match, and the insert block 1001 is relatively large. The cooperation is used to ensure that the position of the mold frame car mounting plate 11 and the ejection mechanism connecting plate 10 is aligned, so that when the ejection mechanism connecting plate 10 is pushed up to the mold frame car mounting plate 11, it is firmly stuck between the mold frame car mounting plate 11, and the problem of relative sliding will not easily occur, effectively ensuring the stability of the entire mold frame when moving up and down. The ejection mechanism guide column 9 vertically penetrates the inside of both sides of the ejection mechanism base 8, and the ejection mechanism guide column 9 forms a lifting structure with the core making machine frame 1 through the electric cylinder 7. The ejection mechanism guide column 9 obtains the power for moving up and down through the electric cylinder 7, thereby realizing the rising and falling of the mold frame car mounting plate 11, and the action is stable and reliable, ensuring the positioning accuracy of the mold 18;

[0029] The mold trolley frame 13 is installed below the mold trolley guide column 12, and the mold trolley guide wheel 14 is set on the outer side of the bottom end of the mold trolley frame 13. Slide columns 1301 are vertically welded at both ends of the bottom surface of the mold trolley frame 13, and the slide columns 1301 are respectively inserted into the inner ends of the mold trolley guide wheels 14. The mold trolley frame 13 and the mold trolley guide wheels 14 are combined. The mold trolley guide wheels 14 are the horizontal walking wheels of the mold trolley frame 13. In this way, the position of the entire mold trolley can be adjusted accordingly in the horizontal direction to move the mold 18 to the correct position accurately, quickly and efficiently to complete the work. The mold trolley guide columns 12 vertically penetrate the inside of the two sides of the mold trolley frame 13 respectively, and the mold trolley guide columns 12 and the mold trolley mounting plate 11 are a detachable structure. The mold trolley guide columns 12 are used to support the mold trolley mounting plate 11 and guide the up and down movement of the mold trolley mounting plate 11, so that the mold The vehicle mounting plate 11 can move up and down more smoothly, and the mold frame car guide column 12 is easy to disassemble and assemble, and the assembly is simple and easy. A mold frame car guide rail 15 is arranged below the mold frame car guide wheel 14, and a mold frame car guide rail base 16 is arranged at the outer end of the mold frame car guide rail 15. The sizes of the mold frame car guide wheel 14 and the mold frame car guide rail 15 match each other, and the wheel groove section of the mold frame car guide wheel 14 and the rail section of the mold frame car guide rail 15 are both "V"-shaped. Along the mold frame car guide rail 15, the mold frame car guide wheel 14 can move horizontally smoothly, and the "V"-shaped connecting part makes the mold frame car guide wheel 14 and the mold frame car guide rail 15 well connected, with little wear, long service life, and no derailment. The mold frame car guide rail base 16 is fixed on both sides of the bottom surface of the core making machine frame 1, and a positioning pin 17 is vertically fixed in the middle of the upper surface of the mold frame car mounting plate 11, and the mold 18 is placed above the mold frame car mounting plate 11.

[0030] In summary, when the quick mold changing device is used, the mold 18 is placed on the mold mounting plate 11 of the mold mounting vehicle, and the mold 18 is positioned by the two front and rear positioning pins 17 to ensure the position of the mold 18. The mold mounting vehicle composed of the mold mounting plate 11, the mold mounting vehicle guide column 12, the mold mounting vehicle frame 13, the mold mounting vehicle guide wheel 14, the mold mounting vehicle guide rail 15 and the mold mounting vehicle guide rail base 16 is moved to the top of the ejection mechanism connecting plate 10, the electric cylinder 7 works, the ejection mechanism guide column 9 pushes up, and the mold mounting plate 11 of the mold mounting vehicle together with the mold 18 is pushed up. The mold 18 is in contact with the movable mold mounting plate 5, the mold 18 and the movable mold mounting plate 5 are connected, the ejection device and the mold mounting plate 11 are lowered, that is, the electric cylinder 7 works, and the ejection mechanism guide column 9 is lowered until the ejection device and the mold mounting plate 11 are separated from the mold. The movable mold turning cylinder 4 drives the movable mold mounting plate 5 together with the mold 18 to turn to a horizontal position, and the mold closing cylinder 2 drives the movable mold mounting plate 5 together with the mold 18 to close, fix the mold 18 and the fixed mold mounting plate 6, and the switching action of the mold 18 is completed.

[0031] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A quick mold changing device, comprising a core making machine frame (1) and a mold (18), characterized in that: A mold clamping cylinder (2) is horizontally arranged on the left side above the core making machine frame (1), and the output end of the mold clamping cylinder (2) is connected to a core making machine guide column (3), a movable mold turning cylinder (4) is installed above the core making machine guide column (3), and the output end of the movable mold turning cylinder (4) is connected to a movable mold mounting clamping plate (5), and the other end of the core making machine guide column (3) is installed with a fixed mold mounting clamping plate (6), an electric cylinder (7) is arranged at the bottom of the core making machine frame (1), and the bottom surface of the core making machine frame (1) is screwed to an ejection mechanism base (8), an ejection mechanism guide column (9) vertically penetrates the interior of the ejection mechanism base (8), and an ejection mechanism connecting plate (10) is fixed to the top of the ejection mechanism guide column (9), and the ejection mechanism connecting plate (10) is fixed to the top of the ejection mechanism connecting plate (10). 0) is provided with a mold-carrying vehicle mounting plate (11) above, and mold-carrying vehicle guide columns (12) are connected to the lower parts of both ends of the mold-carrying vehicle mounting plate (11), a mold-carrying vehicle frame (13) is installed below the mold-carrying vehicle guide columns (12), and a mold-carrying vehicle guide wheel (14) is provided on the outer side of the bottom end of the mold-carrying vehicle frame (13), a mold-carrying vehicle guide rail (15) is arranged below the mold-carrying vehicle guide wheel (14), and a mold-carrying vehicle guide rail base (16) is arranged at the outer end of the mold-carrying vehicle guide rail (15), and the mold-carrying vehicle guide rail base (16) is fixed to both sides of the bottom surface of the core-making machine frame (1), a positioning pin (17) is vertically fixed to the middle part of the upper surface of the mold-carrying vehicle mounting plate (11), and the mold (18) is placed above the mold-carrying vehicle mounting plate (11); A total of four core-making machine guide pillars (3) are provided, and both ends of the core-making machine guide pillars (3) are respectively assembled through plates to form a telescopic structure with the mold clamping cylinder (2); The lower surface of the movable mold mounting plate (5) is matched with the upper surface of the mold (18), and the movable mold mounting plate (5) forms a turning structure through the movable mold turning cylinder (4) and the core making machine guide column (3).

2. A quick mold change device according to claim 1, characterized in that: The fixed die clamping plate (6) is sleeved on the outside of the end of the core making machine guide column (3), and the fixed die clamping plate (6) and the core making machine guide column (3) are connected by bolts.

3. A quick mold change device according to claim 1, characterized in that: Insert blocks (1001) are welded on both sides of the upper surface of the ejection mechanism connecting plate (10), and groove blocks (1101) are correspondingly fixed on both sides of the lower surface of the frame mold vehicle mounting clamping plate (11), and the sizes of the groove blocks (1101) and the insert blocks (1001) match each other.

4. A quick mold change device according to claim 1, characterized in that: The ejection mechanism guide columns (9) vertically penetrate the interior of both sides of the ejection mechanism base (8), and the ejection mechanism guide columns (9) form a liftable structure with the core making machine frame (1) through the electric cylinder (7).

5. A quick mold change device according to claim 1, characterized in that: Both ends of the bottom surface of the formwork vehicle frame (13) are vertically welded with sliding columns (1301), and the sliding columns (1301) are respectively inserted into the inner ends of the guide wheels (14) of the formwork vehicle.

6. A quick mold change device according to claim 1, characterized in that: The formwork vehicle guide columns (12) respectively vertically penetrate the interior of both sides of the formwork vehicle frame (13), and a detachable structure is provided between the formwork vehicle guide columns (12) and the formwork vehicle mounting clamping plate (11).

7. A quick mold change device according to claim 1, characterized in that: The dimensions of the guide wheel (14) of the mold frame vehicle and the guide rail (15) of the mold frame vehicle are matched with each other, and the wheel groove cross section of the guide wheel (14) of the mold frame vehicle and the rail cross section of the guide rail (15) of the mold frame vehicle are both in a "V" shape.

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