Lifting mechanism of pattern stripping device

Abstract

The utility model discloses a lifting mechanism of a stripping device, belongs to the technical field of lifting devices, and provides the lifting mechanism of the stripping device, which is higher in working efficiency and comprises a rack, the top of the rack is fixedly connected with a die holder, the rack is provided with a driving mechanism below the die holder, and the movable end of the driving mechanism is connected with a lifting platform through a linkage piece. The lifting platform comprises a configuration plate, the upper surface of the configuration plate is fixedly connected with a mold leaking body, the mold leaking body is in sliding fit with the mold base, the lower surface of the configuration plate is fixedly connected with a traction block, the side face of the traction block is provided with a T-shaped sliding groove communicating with the bottom face, the linkage piece comprises a polished shaft, and the upper end of the polished shaft is provided with a matching disc. According to the lifting mechanism, the connecting piece and the linkage piece are designed between the movable end of the air cylinder and the lifting platform, so that the maximum lifting height of the pattern stripping body can be adjusted, the adjusting precision is high, one pattern stripping device can produce molding sand molds with different mold cavity depths, and the use flexibility of the pattern stripping device is higher through the lifting mechanism.

Description

Technical Field

[0001] This application relates to the field of lifting device technology, and in particular to a lifting mechanism for a mold-making device. Background Technology

[0002] Motor housings are mostly produced by sand casting. Since the sand mold is a disposable tool, it needs to be mass-produced. The mold release device can speed up the molding efficiency of the sand mold. The mold release device usually needs to be equipped with a lifting device for demolding. However, the traditional lifting mechanism used for the mold release device is mostly manual, which is slow and has low control accuracy of the lifting distance, which will significantly affect the production efficiency and quality of the sand mold. Summary of the Invention

[0003] The purpose of this application is to provide a lifting mechanism for a mold-making device with higher working efficiency.

[0004] To achieve the above objectives, this application provides a lifting mechanism for a mold-making device: including a frame, a mold base fixedly connected to the top of the frame, a drive mechanism disposed below the mold base, a lifting platform connected to the movable end of the drive mechanism via a linkage, the lifting platform including a mounting plate, a mold body fixedly connected to the upper surface of the mounting plate, the mold body slidingly engaging with the mold base, a traction block fixedly connected to the lower surface of the mounting plate, a T-shaped groove communicating with the bottom surface being provided on the side of the traction block, the linkage including an optical shaft, a mating disc at the upper end of the optical shaft adapted to slide into the T-shaped groove and form a rotating pair, a nut at the lower end of the optical shaft, a connecting member constrained at the movable end of the drive mechanism, the connecting member including a screw adapted to engage with the nut to realize the transmission of upward thrust and downward pull.

[0005] As a preferred embodiment, the main body of the drive mechanism is a cylinder, and a U-shaped sleeve is fixedly connected to the movable end of the cylinder. A limiting groove is formed on the inner wall of the U-shaped sleeve. A sliding column is fixedly connected to the lower end of the screw. The sliding column is adapted to cooperate with the limiting groove to form a sliding pair. A slider is provided on the side of the sliding column. A baffle is fixedly connected to the upper end of the U-shaped sleeve to prevent the slider from dislodging from the limiting groove, thereby ensuring the connection state of the connecting parts at the movable end of the cylinder.

[0006] As a preferred embodiment, a retaining ring is provided between the optical axis and the nut, and the retaining ring is located below the traction block; a retaining ring is provided between the screw and the sliding pin, and the retaining ring is located above the baffle, so that the larger contact area can effectively disperse the pressure.

[0007] As a preferred embodiment, the frame includes support columns, the cylinder housing is fixedly connected to the support columns via a support plate, and an installation platform located above the support plate is also fixedly connected between the support columns. A guide column is fixedly connected between the installation platform and the mold base, and a guide hole is provided on the configuration plate, which is suitable for cooperating with the guide column to form a sliding pair to ensure the stability of the lifting platform during movement.

[0008] As a preferred embodiment, the configuration plate has a through hole in the center for the extension rod of the cylinder to pass through, and there are several guide posts, which are arranged equidistantly around the geometric center line of the through hole, which helps to ensure the stability of the lifting platform.

[0009] As a preferred embodiment, the mold body includes a mold body fixedly connected to the configuration plate. The outer side of the mold body has a forming strip. The mold base has a relief groove that runs through the upper and lower surfaces, which is suitable for cooperating with the mold body to form a sliding pair. The inner wall of the relief groove also has a fitting groove, which is suitable for cooperating with the forming strip to form a sliding pair. This not only restricts the degree of freedom of movement of the mold body, but also effectively prevents molding sand from leaking out from the mating gap.

[0010] As a preferred embodiment, the upper surface of the mold base is also fixedly connected to a forming ring located at the edge of the relief groove, and the upper surface of the mold base also has a positioning frame surrounding the forming ring for providing installation and positioning for the molding sand guard plate.

[0011] As a preferred embodiment, the outer side of the configuration plate has an extension plate, and a slide rod is fixedly connected to the upper surface of the extension plate. The outer side of the mold base has an ear plate with a sliding hole, which is suitable for cooperating with the slide rod to form a sliding pair. The upper end of the slide rod passes through the sliding hole and is fixedly connected to a limit ring. A limit beam is also fixedly connected between the support columns. The extension plate is located between the mold base and the limit beam, thereby giving the lifting platform a definite lower limit.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) By configuring a cylinder under the lifting platform, the automatic lifting function can be realized, and the stability and control precision are good, which can effectively improve the production efficiency of the molding sand mold.

[0014] (2) By designing connecting parts and linkage structure between the cylinder moving end and the lifting platform, the maximum lifting height of the mold body can be adjusted and the adjustment accuracy is relatively high. This allows a mold device to produce a variety of molding sand molds with different cavity depths. The lifting mechanism makes the mold device more flexible to use and expands the production range of the mold device. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional schematic diagram of the overall structure of the lifting mechanism of the mold-making device.

[0016] Figure 2 This is a second three-dimensional schematic diagram of the overall structure of the lifting mechanism of the mold-making device.

[0017] Figure 3 This is a three-dimensional structural diagram showing the connection between the drive mechanism of the lifting mechanism of the mold-making device and the lifting platform.

[0018] Figure 4 A three-dimensional structural diagram of the mold body of the lifting mechanism of the mold-making device configured on the lifting platform.

[0019] Figure 5 This is a three-dimensional structural diagram of the lifting platform of the lifting mechanism of the mold-making device.

[0020] Figure 6 This is a three-dimensional sectional view of the linkage component of the lifting mechanism of the mold-making device.

[0021] Figure 7 This is a three-dimensional structural diagram of the connecting parts of the lifting mechanism of the mold-making device.

[0022] Figure 8 This is a three-dimensional structural diagram of the drive mechanism of the lifting mechanism of the mold-making device.

[0023] Figure 9 This is a three-dimensional structural diagram of the mold base of the lifting mechanism of the mold-making device.

[0024] Figure 10 This is a three-dimensional structural diagram of the frame of the lifting mechanism of the mold-making device.

[0025] In the diagram: 1. Frame; 101. Support column; 102. Pallet; 103. Mounting platform; 104. Through hole; 105. Limiting beam; 106. Guide column; 2. Mold base; 201. Ear plate; 202. Sliding hole; 203. Positioning frame; 204. Forming ring; 205. Relief groove; 206. Fitting groove; 3. Lifting platform; 301. Configuration plate; 302. Guide hole; 303. Sliding rod; 304. Limiting ring; 305. 306. Traction block; 307. T-shaped slide; 308. Extension plate; 4. Molding body; 401. Mold body; 402. Forming strip; 5. Drive mechanism; 501. Cylinder; 502. U-shaped sleeve; 503. Limiting slide; 504. Baffle; 6. Connecting parts; 601. Sliding column; 602. Sliding block; 603. Retaining ring; 604. Screw; 7. Linkage parts; 701. Nut; 702. Support ring; 703. Optical shaft; 704. Fitting plate. Detailed Implementation

[0026] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0028] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, 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 explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0030] like Figure 1-10 The lifting mechanism of the mold-making device shown includes a frame 1, which includes four support columns 101. The top of the frame 1, which is actually the top of the four support columns 101, is fixedly connected to a mold base 2. The upper surface of the mold base 2 is horizontal. A drive mechanism 5 is provided below the mold base 2 on the frame 1. The movable end of the drive mechanism 5 is connected to a lifting platform 3 through a linkage 7. The linkage 7 can be easily disassembled and assembled relative to the lifting platform 3 and the drive mechanism 5. The specific structure of the lifting platform 3 includes a horizontal configuration plate 301. The lower surface of the configuration plate 301 is fixedly connected to a generally cuboid shape. The traction block 305 has a T-shaped groove 306 on its side that connects to the bottom surface and usually extends to the other side. The linkage 7 includes an optical shaft 703. The upper end of the optical shaft 703 has a flat cylindrical fitting plate 704 that can slide into the T-shaped groove 306 and cooperate with the traction block 305 to form a rotating pair. The lower end of the optical shaft 703 has a coaxial nut 701. There is a support ring 702 between the optical shaft 703 and the nut 701. The support ring 702 is located below the traction block 305 and can support the bottom surface of the traction block 305 to share the downward pressure of the lifting platform 3.

[0031] The movable end of the drive mechanism 5 is constrained by a connector 6. The connector 6 includes a screw 604 for engaging with a nut 701. The threaded engagement structure has good self-locking capability and is not easily loosened by tension after tightening. The main body of the drive mechanism 5 is a cylinder 501. The movable end of the cylinder 501 moves vertically and is fixedly connected to a U-shaped sleeve 502. The inner wall of the U-shaped sleeve 502 forms a longitudinal limiting groove 503. The lower end of the screw 604 is fixedly connected to a sliding column 601. The sliding column 601 engages with the limiting groove 503 to form a sliding pair. Since the sliding column 601 is a regular polygonal prism, it cannot be positioned relative to the U-shaped sleeve 701. When the sleeve 502 rotates, the sliding column 601 does not face the side of the inner wall of the U-shaped sleeve 502, which also has a protruding slider 602. The upper end of the U-shaped sleeve 502 is fixedly connected to a baffle 504, which is usually fixed by welding. It is used to prevent the slider 602 from coming out of the limiting slide groove 503, thereby maintaining the stability of the connecting part 6 at the moving end of the cylinder 501. There is a retaining ring 603 with a larger cross-sectional area between the screw 604 and the sliding column 601. The retaining ring 603 is located above the baffle 504 and is used to limit the maximum sinking depth of the sliding column 601 in the limiting slide groove 503, so as to prevent the screw 604 from sinking into the limiting slide groove 503 and making it difficult to perform the operation.

[0032] The housing of cylinder 501 is fixedly connected to support column 101 via support plate 102 to ensure the stability of the main body of drive mechanism 5. A mounting platform 103 located above support plate 102 is also fixedly connected between support columns 101. The mounting platform 103 is also horizontal. A vertical guide column 106 is fixedly connected between mounting platform 103 and mold base 2. A guide hole 302 is provided on the configuration plate 301 to cooperate with the guide column 106 to form a sliding pair. A through hole 104 is also provided in the center of configuration plate 301 for the telescopic rod of cylinder 501 to pass through, thereby avoiding motion interference of configuration plate 301. There are several guide columns 106. In this embodiment, there are four guide columns 106. These guide columns 106 are equidistantly arranged around the geometric center line of through hole 104 and are located at the four corners of mold base 2, which can maintain the smooth movement of lifting platform 3.

[0033] The outer side of the configuration plate 301 has two extension plates 307, which are distributed on the symmetrical sides of the configuration plate 301. A vertical slide rod 303 is fixedly connected to the upper surface of each extension plate 307. The outer side of the mold base 2 has ear plates 201. The number and position of the ear plates 201 correspond to the extension plates 307. The ear plates 201 have sliding holes 202 that pass through the upper and lower surfaces, which are used to cooperate with the slide rods 303 to form a sliding pair. The upper end of the slide rod 303 passes through the sliding hole 202 and is fixedly connected to a limit ring 304 to limit the maximum lifting range of the lifting platform 3, thereby preventing the components on the lifting platform 3 from detaching excessively. A limit beam 105 is also fixedly connected between the support columns 101. Both extension plates 307 are located between the mold base 2 and the limit beam 105, providing stable support force to the configuration plate 301 when the lifting platform 3 descends to the lower limit.

[0034] The upper surface of the configuration plate 301 is fixedly connected to a mold body 4, which is the main body forming the inner cavity of the motor housing outer sand mold. The mold body 4 is slidably engaged with the mold base 2. Specifically, the mold body 4 includes a mold body 401 fixedly connected to the configuration plate 301. The outer side of the mold body 401 has a forming strip 402 for forming a groove structure for the inner cavity of the motor housing outer sand mold. The mold base 2 has a relief groove 205 that runs through the upper and lower surfaces for cooperating with the mold body 401 to form a sliding pair. The inner wall of the relief groove 205 also has a fitting groove 206, which cooperates with the forming strip 402 to form a sliding pair. The upper surface of the mold base 2 is also fixedly connected to a forming ring 204 located at the edge of the relief groove 205 for forming the flow channel structure of the end face of the motor housing outer sand mold. The upper surface of the mold base 2 also has a positioning frame 203 surrounding the forming ring 204 to provide installation positioning for the protective plate structure of the motor housing outer sand mold, thereby ensuring the shape of the motor housing outer sand mold is consistent.

[0035] Working principle: In the initial state, the extension plate 307 of the lifting platform 3 rests on the limiting beam 105, and the connecting piece 6 is inserted into the movable end of the cylinder 501. Before use, slide the engaging plate 704 of the linkage 7 into the T-shaped slide groove 306, and then let the upper end of the screw 604 engage with the nut 701. The depth of engagement depends on the cavity depth of the motor housing to be formed. After the commissioning meets the production requirements, it can be used. When using, first start the cylinder 501 to move the lifting platform 3 to the upper limit position. At this time, the mold body 4 protrudes from the upper surface of the mold base 2, and then the positioning is used. The frame 203 constrains the protective plate of the sand mold, making the protective plate form a rectangle. Then, loose molding sand is filled into the protective plate and compacted until the molding sand is flush with the upper surface of the protective plate. After the molding sand dries for a period of time and sets, the cylinder 501 is started again to drive the lifting platform 3 to move down. During this process, the mold body 4 will gradually come out of the sand mold until the lifting platform 3 moves to the lower limit position. The mold body 4 will then completely separate from the cavity of the sand mold and will no longer interfere with the sand mold. At this time, the sand mold connecting protective plate can be removed from the upper end of the mold base 2 to obtain the outer sand mold of the motor housing.

[0036] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A lifting mechanism for a perforated mold device, characterized in that: The system includes a frame (1), a mold base (2) fixedly connected to the top of the frame (1), a drive mechanism (5) provided below the mold base (2) on the frame (1), and a lifting platform (3) connected to the movable end of the drive mechanism (5) via a linkage (7). The lifting platform (3) includes a configuration plate (301), a mold blank (4) fixedly connected to the upper surface of the configuration plate (301), the mold blank (4) slidingly engaging with the mold base (2), and a traction block fixedly connected to the lower surface of the configuration plate (301). (305) The side of the traction block (305) is provided with a T-shaped groove (306) that connects to the bottom surface. The linkage (7) includes an optical shaft (703). The upper end of the optical shaft (703) has a mating disc (704) which is suitable for sliding into the T-shaped groove (306) and forming a rotating pair. The lower end of the optical shaft (703) has a nut (701). The movable end of the drive mechanism (5) is constrained by a connecting member (6). The connecting member (6) includes a screw (604) which is suitable for cooperating with the nut (701).

2. The lifting mechanism of the mold-making device as described in claim 1, characterized in that: The main body of the drive mechanism (5) is a cylinder (501). A U-shaped sleeve (502) is fixedly connected to the movable end of the cylinder (501). A limiting groove (503) is formed on the inner wall of the U-shaped sleeve (502). A sliding column (601) is fixedly connected to the lower end of the screw (604). The sliding column (601) is adapted to cooperate with the limiting groove (503) to form a sliding pair. A slider (602) is provided on the side of the sliding column (601). A baffle (504) is fixedly connected to the upper end of the U-shaped sleeve (502) to prevent the slider (602) from coming out of the limiting groove (503).

3. The lifting mechanism of the mold-making device as described in claim 2, characterized in that: A retaining ring (702) is provided between the optical axis (703) and the nut (701), and the retaining ring (702) is located below the traction block (305); a retaining ring (603) is provided between the screw (604) and the slide (601), and the retaining ring (603) is located above the baffle (504).

4. The lifting mechanism of the mold-making device as described in claim 3, characterized in that: The frame (1) includes a support column (101). The housing of the cylinder (501) is fixedly connected to the support column (101) via a support plate (102). An installation platform (103) located above the support plate (102) is also fixedly connected between the support columns (101). A guide column (106) is fixedly connected between the installation platform (103) and the mold base (2). A guide hole (302) is provided on the configuration plate (301), which is suitable for cooperating with the guide column (106) to form a sliding pair.

5. The lifting mechanism of the mold-making device as described in claim 4, characterized in that: The configuration plate (301) has a through hole (104) in the center for the telescopic rod of the cylinder (501) to pass through. There are several guide posts (106), and the guide posts (106) are arranged equidistantly around the geometric center line of the through hole (104).

6. The lifting mechanism of the mold-making device as described in any one of claims 1 to 5, characterized in that: The mold body (4) includes a mold body (401) fixedly connected to the configuration plate (301). The outer side of the mold body (401) has a forming strip (402). The mold base (2) has a relief groove (205) that runs through the upper and lower surfaces, which is suitable for cooperating with the mold body (401) to form a sliding pair. The inner wall of the relief groove (205) also has a fitting groove (206), which is suitable for cooperating with the forming strip (402) to form a sliding pair.

7. The lifting mechanism of the mold-making device as described in claim 6, characterized in that: The upper surface of the mold base (2) is also fixedly connected to a forming ring (204) located at the edge of the relief groove (205), and the upper surface of the mold base (2) also has a positioning frame (203) surrounding the forming ring (204).

8. The lifting mechanism of the mold-making device as described in any one of claims 4 to 5, characterized in that: The outer side of the configuration plate (301) has an extension plate (307), and the upper surface of the extension plate (307) is also fixedly connected to a slide rod (303). The outer side of the mold base (2) has an ear plate (201), and the ear plate (201) has a sliding hole (202) for cooperating with the slide rod (303) to form a sliding pair. The upper end of the slide rod (303) passes through the sliding hole (202) and is also fixedly connected to a limiting ring (304). A limiting beam (105) is also fixedly connected between the support columns (101), and the extension plate (307) is located between the mold base (2) and the limiting beam (105).

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