Die changing device of vertical casting machine

Abstract

The utility model relates to a die changing device of a vertical casting machine, which is used for accurately and reliably transferring a casting die to a specified die changing position along a preset track so as to shorten the auxiliary die changing time. The device comprises a mold trolley support, a mold mounting plate, a chain wheel module and a positioning module. The chain wheel module comprises a hydraulic motor, a driving wheel, a driven wheel, a chain wheel set, a primary chain, a secondary chain, a chain connecting rod, a connecting block and a guide rail. And the upper surface of the mold trolley bracket and the upper surface of the fixed mold plate are positioned at the same height. The horizontal height of the mold mounting plate is between the fixed mold plate and the movable mold plate, and the moving route of the mold mounting plate passes through the position under the movable mold plate. Through the combination of the chain transmission system, the hydraulic motor and the double rows of chains, quick replacement of the mold is realized, the space utilization rate and the environmental adaptability of equipment are improved, and the device is particularly suitable for application scenes with quick change requirements of casting products.

Description

Technical Field

[0001] The utility model relates to the technical field of casting machinery, in particular to a mold changing device for a vertical casting machine. Background Art

[0002] In the foundry industry, vertical casting machines are highly favored because of their ability to efficiently handle large and complex castings. However, with the increase in casting size and complexity and the frequent changes in the types of castings produced, the replacement of casting molds has become a key factor affecting the production efficiency and product quality of vertical casting machines. Traditional mold replacement methods usually need to be carried out when the equipment is shut down, relying on manual or mechanical assistance to complete the loading and unloading of the mold, which not only leads to a decrease in equipment utilization, but also increases the safety risks of personnel and equipment. In addition, when manually operating or mechanically assisting the replacement of the mold, the mold is easily damaged, which increases maintenance costs and reduces the overall performance of the equipment; the adaptability to harsh environments (such as high temperature, humidity, dust, etc.) is also relatively limited.

[0003] In order to solve the above problems, the utility model proposes a vertical casting machine mold changing device, which is used to accurately and reliably transfer the casting mold along the preset track to the designated mold changing position to shorten the auxiliary mold changing time. The utility model realizes the rapid replacement of molds through the combination of chain drive system, hydraulic motor and double-row chain, improves the space utilization rate and environmental adaptability of the equipment, and is particularly suitable for application scenarios where casting products require rapid changes. It should be noted that the above information disclosed in this background technology section is only used to understand the background technology conceived by the utility model, and therefore, it may contain information that does not constitute prior art. Utility Model Content

[0004] The utility model relates to a mold changing device for a vertical casting machine, which functions to accurately and reliably transfer the casting mold to the designated mold changing position along a preset track to shorten the auxiliary mold changing time. The specific technical scheme of the utility model is as follows: it includes a mold cart bracket, a mold mounting plate, a sprocket module and a positioning module; the sprocket module includes: a hydraulic motor, a driving wheel, a driven wheel, a sprocket group, a chain, a chain connecting rod, a connecting block, a guide rail, a mold mounting plate and a mold cart bracket; the hydraulic motor is fixedly installed on the mold cart bracket, and its output shaft is connected to the driving wheel to drive the driving wheel to rotate clockwise or counterclockwise; the driving wheel and the driven wheel are connected through a sprocket group to form a transmission chain; the chain is connected to the connecting block on the mold mounting plate through a chain connecting rod, thereby driving the mold mounting plate to move left and right on the guide rail; the positioning module includes: ... driven wheel, a sprocket group, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting rod, a chain connecting plate, a mold mounting plate, a mold mounting plate, It includes: mechanical limit blocks, proximity switches, guide seats, rollers, mold mounting plates, mold cart brackets, fixed mold plates and movable mold plates; the mold mounting plate is used to install the mold, and the preliminary positioning of the mold is achieved through auxiliary positioning devices such as positioning pins and positioning holes; proximity switches are respectively provided on both sides of the mold mounting plate to detect the position of the mold mounting plate and control the stop or start of the hydraulic motor; symmetrically arranged guide seats and rollers are installed between the mold cart bracket and the mold mounting plate; the guide seat is located at the tail end of the lower part of the mold mounting plate; the roller rolls along the guide surface on the fixed mold plate to ensure the smooth lifting and lowering of the movable mold plate; the fixed mold plate is located on the lower side of the movable mold plate.

[0005] Compared with the prior art, the beneficial effects of the utility model are embodied in:

[0006] The chain drive is used instead of the traditional belt drive to improve the stability of the device in high temperature environment;

[0007] The double-row chain structure improves the reliability of the system. Even if one chain fails, the other chain can still ensure that the mold mounting plate does not derail.

[0008] The small size and high torque of hydraulic motors can be used to quickly transport casting molds.

[0009] The stroke of the mold mounting plate is accurately controlled by mechanical limit blocks and proximity switches to improve the safety and accuracy of the mold changing process.

[0010] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0012] Figure 1 This is an overall schematic diagram of a mold changing device for a vertical casting machine according to the utility model;

[0013] Figure 2 This is an internal structure diagram of a vertical casting machine of the utility model;

[0014] Figure 3 for Figure 2 A partial enlarged view of

[0015] In the figure: 1. hydraulic motor; 2. driving wheel; 3. driven wheel; 4. sprocket group; 5. mechanical limit block; 6. primary chain; 61. secondary chain; 7. chain connecting rod; 8. connecting block; 9. guide rail; 10. proximity switch; 11. guide seat; 12. roller; 13. mold mounting plate; 14. mold car bracket; 15. fixed mold plate; 16. movable mold plate. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0017] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0018] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0019] A mold changing device for a vertical casting machine, such as Figure 1 , Figure 2 and local magnification Figure 3 As shown, it includes a mold vehicle bracket 14, a mold mounting plate 13, a sprocket module and a positioning module;

[0020] The mold vehicle support 14 is fixedly installed on the ground, and the upper surface of the mold vehicle support 14 is at the same height as the upper surface of the fixed mold plate 15; the horizontal height of the mold mounting plate 13 is between the fixed mold plate 15 and the movable mold plate 16, and the moving route of the mold mounting plate 13 passes directly under the movable mold plate 16;

[0021] The sprocket module includes: a hydraulic motor 1, a driving wheel 2, a driven wheel 3, a sprocket set 4, a primary chain 6, a secondary chain 61, a chain connecting rod 7, a connecting block 8 and a guide rail 9;

[0022] The hydraulic motor 1 is fixedly mounted on the mold vehicle bracket 14, and its output shaft is connected to the driving wheel 2. The driving wheel 2 and the driven wheel 3 are driven by the main chain 6; the hydraulic motor has the characteristics of adjustable speed, torque and high stability, and can adapt to various working conditions and working environments.

[0023] The sprocket set 4 is coaxially fixedly connected to the driven wheel 3, and the sprocket set 4 is connected to the secondary chain 61; the secondary chain 61 is connected to the connecting block 8 below the mold mounting plate 13 through the chain connecting rod 7, driving the mold mounting plate 13 to translate on the guide rail 9; the transmission method of the sprocket and the chain has stable transmission performance, which can ensure the smooth movement of the mold mounting plate 13. At the same time, the chain transmission has a longer service life than other transmission methods, reducing the frequency of maintenance and replacement.

[0024] The chain 6 is connected to the connecting block 8 on the mold mounting plate 13 through the chain connecting rod 7, thereby driving the mold mounting plate 13 to move left and right on the guide rail 9; through the connection mode of the chain connecting rod 7 and the connecting block 8, the position of the mold mounting plate 13 can be easily adjusted to adapt to molds of different sizes;

[0025] The secondary chain 61 is a double-row chain; the number of chain connecting rods 7 is four.

[0026] The positioning module includes: a mechanical limit block 5, a proximity switch 10, a guide seat 11, and a roller 12;

[0027] There are two pairs of mechanical limit blocks 5, both of which are fixedly mounted on the mold vehicle bracket 14; the two pairs of mechanical limit blocks 5 are respectively located at the maximum stroke positions on both sides of the mold mounting plate 13 to prevent the device from moving beyond the maximum stroke;

[0028] There are two proximity switches 10, which are fixedly mounted on the mold vehicle bracket 14 and are located at the same travel position as the two pairs of mechanical limit blocks 5. The proximity switch 10 is used to detect the position of the mold mounting plate 13; when the mold mounting plate 13 reaches the specified position, the proximity switch 10 sends a signal to control the hydraulic motor 1 to stop rotating, thereby realizing accurate control of the position of the mold mounting plate 13.

[0029] The guide seat 11 and the rollers 12 are symmetrically installed below the mold mounting plate 13; the guide seat 11 is located at the rear end of the mold mounting plate 13; the total number of rollers 12 is 12, and 6 are arranged on one side.

[0030] When the mold mounting plate 13 moves in the positive direction toward the fixed mold plate 15 to the limit position of the movement direction, the movable mold and the fixed mold on the mold mounting plate 13 are located at the correct mold changing position;

[0031] When the mold mounting plate 13 moves in the opposite direction to the fixed mold plate 15 to the extreme position in the movement direction, the projection areas of the mold mounting plate 13 and the movable mold plate 16 do not overlap.

[0032] The working process of the device of this embodiment to install the mold on the vertical casting machine is as follows:

[0033] The casting mold is mounted on the mold mounting plate 13; the mold includes a fixed mold and a movable mold, and the relative positions of the two are fixed at this time;

[0034] The hydraulic motor 1 drives the driving wheel 2 to rotate clockwise, and the driving wheel 2 drives the driven wheel 3 and the sprocket group 4 to rotate, and the mold mounting plate 13 drives the mold to move to the right until the proximity switch 10 detects the mold mounting plate 13, and the hydraulic motor 1 stops rotating; the mold arrives at the preset mold changing position under the transportation of the mold mounting plate 13;

[0035] The movable platen 16 moves downward until it fits the upper surface of the movable mold; the movable mold is fixedly mounted on the mold movable platen 16, and the connection between the mold and the mold mounting plate 13 is disconnected; the movable platen 16 drives the mold, including the fixed mold and the movable mold, to move upward, and the mold is separated from the mold mounting plate 13;

[0036] The hydraulic motor 1 rotates counterclockwise to drive the mold mounting plate 13 back until the left proximity switch 10 detects the mold mounting plate 13, and the hydraulic motor 1 stops rotating; the movable platen 16 drives the mold to move downward, so that the mold fits the fixed platen 15;

[0037] The connection between the fixed mold and the movable mold is disconnected, and then the fixed mold is fixedly installed on the fixed mold plate 15 of the mold to complete the mold installation.

[0038] The utility model relates to a mold changing device for a vertical casting machine, which installs the mold on the mold mounting plate and uses a hydraulic motor to drive the sprocket to rotate, driving the chain and the chain connecting rod to move the mold mounting plate to a specified position along a preset track. The device adopts a stainless steel chain and cooperates with a proximity switch to achieve precise positioning to ensure the safety and efficiency of mold replacement. The movable mold plate is responsible for the up and down movement of the mold and completes the installation of the movable mold plate and the fixed mold plate. The utility model realizes the rapid replacement of the mold through the combination of a chain transmission system, a hydraulic motor and a double-row chain, improves the space utilization rate of the equipment, and at the same time improves the reliability and environmental adaptability of the equipment, significantly improving the production efficiency and product quality of the vertical casting machine.

[0039] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0040] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0041] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0042] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mold changing device for a vertical casting machine, characterized in that: It includes a mold vehicle bracket (14), a mold mounting plate (13), a sprocket module and a positioning module; The mold vehicle support (14) is fixedly mounted on the ground, and the upper surface of the mold vehicle support (14) and the upper surface of the fixed mold plate (15) are located at the same height; The mold mounting plate (13) is located at a level between the fixed mold plate (15) and the movable mold plate (16), and the moving route of the mold mounting plate (13) passes directly below the movable mold plate (16); The sprocket module comprises a hydraulic motor (1), a driving wheel (2), a driven wheel (3), a sprocket group (4), a primary chain (6), a secondary chain (61), a chain connecting rod (7), a connecting block (8) and a guide rail (9); The hydraulic motor (1) is fixedly mounted on the mold vehicle bracket (14); the output shaft of the hydraulic motor (1) is fixedly connected to the driving wheel (2); the driving wheel (2) and the driven wheel (3) are driven by a primary chain (6); The sprocket assembly (4) is coaxially fixedly connected to the driven wheel (3), and the sprocket assembly (4) is connected to the secondary chain (61); the secondary chain (61) is connected to the connecting block (8) below the mold mounting plate (13) through the chain connecting rod (7), driving the mold mounting plate (13) to translate on the guide rail (9); The secondary chain (61) is a double-row chain; the number of chain connecting rods (7) is 4; The positioning module comprises a mechanical limit block (5), a proximity switch (10), a guide seat (11) and a roller (12); There are two pairs of mechanical limit blocks (5), both of which are fixedly mounted on the mold vehicle bracket (14); the two pairs of mechanical limit blocks (5) are respectively located at the maximum stroke positions on both sides of the mold mounting plate (13); The proximity switches (10) are provided at two locations, respectively fixedly mounted on the mold vehicle bracket (14) and located at the same travel position as the two pairs of mechanical limit blocks (5); The guide seat (11) and the rollers (12) are symmetrically mounted below the mold mounting plate (13); the guide seat (11) is located at the rear end of the mold mounting plate (13); the total number of rollers (12) is 12, with 6 arranged on one side.

2. A mold changing device for a vertical casting machine according to claim 1, characterized in that: When the mold mounting plate (13) moves in a positive direction toward the fixed mold plate (15) to the limit position in the movement direction, the movable mold and the fixed mold on the mold mounting plate (13) are located at a correct mold change position; When the mold mounting plate (13) moves in the opposite direction to the fixed mold plate (15) to the extreme position in the direction of movement, the projection areas of the mold mounting plate (13) and the movable mold plate (16) do not overlap.

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