Quick cutting device for ring castings of different diameters

Abstract

The present invention discloses a rapid cutting device suitable for annular castings of different diameters, including a positioning structure, a transmission structure and a crocodile shear. The positioning structure includes a support plate, a lifting frame, a first slider and a lifting plate. The rollers on the front side of the lifting plate support the casting rings. The lifting frame and the first slider are combined to enable the rollers to adapt to casting rings of different diameters by moving up and down. The transmission structure includes a transmission roller and a support member. The transmission roller is used to drive the casting ring to rotate intermittently. The support cylinder in the support member is used to adjust the position of the support roller so that the casting ring is clamped by the support roller and the transmission roller to ensure effective transmission. It also includes a hook. The hook cooperates with the existing lifting device to facilitate the lifting of the casting ring. The crocodile shears are used to cut the casting ring into sections. In the present invention, the support function for casting rings of different diameters is met by adjusting the upper and lower positions of the rollers. At the same time, the entire shearing process does not require manual handling and the use of shearing equipment. The operation is simple and the safety is high.

Description

Technical Field

[0001] The invention relates to the technical field of cutting and recycling of annular castings in a foundry, and in particular to a fast cutting device suitable for annular castings with different diameters. Background Art

[0002] Casting is the process of melting metal into a liquid that meets specific requirements, pouring it into a mold, and then cooling, solidifying, and finishing it to produce a casting with a predetermined shape, size, and properties. Because the cast blank is nearly formed, it can be machined without or with minimal machining, reducing costs and, to a certain extent, production time. Casting is a fundamental process in the modern device manufacturing industry.

[0003] Annular castings of different diameters are suitable for different occasions. Large annular castings are mostly used as pipes and are widely used in hydropower generation and urban drainage. Small annular castings are mostly used as mechanical parts. Different occasions have different requirements for the appearance, size, and performance of annular castings. In order to meet the requirements of use, foundries need to strictly control the quality of annular castings before leaving the factory, and remove annular castings with quality defects in advance to avoid major accidents in later use.

[0004] To avoid wasting resources, foundries recycle and reuse defective ring castings by cutting them into small segments. The collected segments are then returned to the furnace and cast into new ring castings. Currently, ring castings are generally recycled manually. During the cutting process, cutting equipment cuts the longer ring castings into rings. Workers then move the rings to the shearing station, where they use shears to cut the rings into small segments. The entire process is difficult to operate, and the cutting process involves the handling of castings and the use of cutting equipment. If operated improperly, workers may be injured. Summary of the Invention

[0005] In view of the above problems existing in the prior art, the technical problem to be solved by the present invention is: to design a device for quickly cutting annular castings to solve the problems of difficult operation and low safety in manual shearing of casting rings, and the device can quickly cut casting rings of multiple diameters.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solution: a rapid cutting device suitable for annular castings with different diameters, including a positioning structure, a transmission structure and crocodile shears.

[0007] The positioning structure includes a supporting plate, a lifting frame and a lifting plate.

[0008] There are two support plates, both of which are vertically arranged, located in the same plane, and spaced apart from each other along the left-right direction.

[0009] The lifting frame is vertically located at the rear side of the support plate, and the lifting frame is fixedly connected to the support plate.

[0010] The lifting plate is vertically located in front of the lifting frame and is located between the two support plates. The lifting plate is slidably connected to the lifting frame and can slide in a vertical direction.

[0011] Two rollers are provided on the front side of the lifting plate near the lower end. The axes of the rollers are perpendicular to the front side of the lifting plate, and the rear ends of the rollers are fixedly connected to the lifting plate.

[0012] A lower baffle is provided on the front side of the two rollers, and the rear side surface of the lower baffle is fixedly connected to the front end of the two rollers near the left and right ends respectively, and the rollers can rotate around the axis.

[0013] The transmission structure includes a transmission roller and a support member. The transmission roller is arranged on the front side of any support plate near the lower end. The axis of the transmission roller is perpendicular to the front side of the support plate, and the transmission roller can rotate about the axis. The transmission roller is in contact with the inner side of the casting ring, and the transmission roller is used to drive the casting ring to rotate.

[0014] The support member includes a support cylinder and a support roller. The support cylinder is located on the front side of the support plate and below the transmission roller. The base of the support cylinder is fixedly connected to the front side of the support plate, and the piston end of the support cylinder faces the transmission roller.

[0015] The support roller is arranged at the end of the piston end of the support cylinder, the axis of the support roller is perpendicular to the front side of the support plate, and the support roller can rotate around the axis.

[0016] The crocodile shears are located between the two support plates, are located below the crossbar of the lifting frame, and are arranged with the scissors facing forward. The crocodile shears are used for shearing the casting ring.

[0017] In the present invention, a positioning structure is used to define the position of the casting ring. The lifting plate is slidably connected to the lifting frame. The lifting plate drives the rollers and the lower baffle to move upward until they contact the casting ring. The rollers provide support for the casting ring, and the lower baffle prevents the casting ring from sliding forward. The transmission structure is used to drive the casting ring to rotate. The piston end of the support cylinder extends, so that the support rollers and the outer wall of the casting ring are abutted. The transmission rollers and the inner wall of the casting ring are abutted. The casting ring is clamped by the transmission rollers and the support rollers. The rotation of the transmission rollers drives the casting ring to rotate intermittently, making it easier for the crocodile shears to cut the casting ring into sections. In the present invention, the support function for casting rings of different diameters is met by adjusting the upper and lower positions of the rollers. At the same time, the entire shearing process does not require manual use of shearing equipment, and the operation is simple and safe.

[0018] Preferably, it also includes a first slider and a hook.

[0019] The lifting frame includes a transversely arranged crossbar and two vertically arranged vertical rods. The lower ends of the two vertical rods are respectively fixedly connected to the upper surface of the crossbar. The two vertical rods are located between the two support plates. The crossbar is located close to the lower end surface of the support plate. The front side of the crossbar is fixedly connected to the rear side surfaces of the two support plates near the left and right ends.

[0020] The opposite sides of the two vertical rods are vertically provided with sliding grooves. The first sliding block is located between the two vertical rods, and the left and right ends of the first sliding block are respectively slidably connected to the sliding grooves on both sides. The first sliding block can slide up and down along the sliding grooves on both sides.

[0021] The lifting plate includes a left plate and a right plate, and the left plate and the right plate are respectively located on the front sides of the two vertical rods. The left plate and the right plate are located in the same plane, and there is a distance between the left plate and the right plate in the left and right directions. The rear side surfaces of the left plate and the right plate are fixedly connected to the first slider, and the two rollers are respectively fixedly connected to the left plate and the right plate.

[0022] The hook includes a transport roller and a hook rod. The transport roller is arranged horizontally, and the axis of the transport roller is perpendicular to the front side of the support plate. One end of the hook rod is fixedly connected to the rear end of the transport roller, and the other end of the hook rod is bent upward, and the projection of the other end of the hook rod in the vertical direction is located at the middle point of the transport roller. The transport roller can rotate about the axis.

[0023] The casting ring is lifted by setting a hook. When lifting the casting ring, it is difficult to ensure that the transport roller will exactly contact the inner wall of the top of the casting ring at the beginning. The casting ring will rotate under its own weight, causing the inner wall at the top to contact the transport roller, reaching a relatively stable state. Since the transport roller can rotate, the friction between the casting ring and the transport roller during rotation is greatly reduced, allowing the casting ring to quickly rotate to a stable position for easy transportation, while also reducing the friction loss of the transportation structure. At the same time, in order to facilitate the hook to lift the casting ring and then leave it, the lifting frame is designed with two vertical rods. The lifting plate is divided into a left plate and a right plate. The hook lifts the casting ring to the front side of the support plate. After the roller provides support for the casting ring, the hook can pass backward in sequence between the left and right plates and between the two vertical rods, allowing the hook to leave the back side of the support plate.

[0024] Preferably, the first slider is a U-shaped structure, the U-shaped opening of the first slider is vertically upward, and the hook can pass through the U-shaped area of ​​the first slider.

[0025] The hook lifts the casting ring to the front of the support plate, where it is supported by rollers. The lift is now complete, and the hook descends a short distance before moving back to the rear of the support plate. It then leaves the plate for the next lift. By designing the first slider as a U-shaped structure, the hook increases the distance it can move downward after the lift is complete, making it easier for the hook to leave the rear of the support plate.

[0026] Preferably, a plurality of contact rollers are provided on the front side surfaces of the two support plates, the axes of the contact rollers are parallel to the front side surfaces of the support plates, one end of the contact rollers is close to between the two support plates, and the other end of the contact rollers is away from between the two support plates, and the contact rollers can rotate about the axes, and each contact roller has only one contact position with each casting ring.

[0027] When the casting ring is sheared, the transmission roller drives the casting ring to rotate. By setting the contact roller, the rear side of the casting ring contacts multiple contact rollers. Since the contact roller can rotate, when the casting ring rotates, the contact roller can be driven by the casting ring to rotate, avoiding direct contact between the rear side of the casting ring and the front side of the support plate. The rolling friction between the casting ring and the contact roller replaces the sliding friction between the casting ring and the support plate, thereby reducing the friction force suffered by the casting ring during rotation, making the casting ring rotation smoother and more accurate, and reducing the energy consumption of the transmission roller.

[0028] Preferably, a protective plate is provided on the front side of each of the two support plates, and the protective plate is located in front of the contact roller, and the protective plate is an arc-shaped plate structure facing between the two support plates.

[0029] A pushing cylinder is provided transversely on the rear side surfaces of the two support plates, and a rectangular opening is provided transversely on the front side surfaces of the two support plates. A connecting block is provided in the rectangular opening, one end of the connecting block is fixedly connected to the protective plate, and the other end of the connecting block is fixedly connected to the piston end of the pushing cylinder.

[0030] When the casting ring is sheared, it may be deformed due to the force, and the sheared casting ring may move to the left or right. By setting a protective plate, the push cylinder drives the protective plate to move left and right to adapt to casting rings of different diameters. The protective plate acts as a limit on the casting ring to prevent the casting ring from moving left and right, which may cause shearing failure or safety accidents.

[0031] Preferably, the cross-section of the protective plate is L-shaped, and the protective plate includes an A plate and a B plate that are perpendicular to each other, the B plate is perpendicular to the front side of the support plate, the A plate is located in front of the B plate, and the A plate is located on the side of the B plate close to the two support plates.

[0032] By designing the protective plate into an L-shaped structure in cross section, plate A can prevent the casting ring from moving forward, and plate B can prevent the casting ring from moving left or right, further limiting the position of the casting ring when it is sheared, and avoiding safety accidents caused by the casting ring falling out.

[0033] Preferably, the positioning structure further includes a limiting member, which is located at the front side of any lifting plate, and includes a limiting cylinder, an upper baffle and two pressure rollers.

[0034] The piston end of the limit cylinder is vertically downward, the cylinder body of the limit cylinder is fixedly connected to the corresponding lifting plate, and a connecting plate is horizontally provided at the end of the piston end of the limit cylinder, and the connecting plate is fixedly connected to the piston end of the limit cylinder.

[0035] The two pressure rollers are respectively located on the front side of the connecting plate near the left and right ends. The pressure roller is located above the supporting roller. The axis of the pressure roller is perpendicular to the front side of the support plate. The rear end of the pressure roller is fixedly connected to the connecting plate, and the pressure roller can rotate about the axis.

[0036] The upper baffle is laterally located at the front side of the two pressing rollers, and the rear side surface of the upper baffle is fixedly connected to the front ends of the two pressing rollers respectively.

[0037] By setting the limiter, when the casting ring is supported by the roller, the limit cylinder drives the pressure roller to move downward, and the pressure roller abuts against the outer side of the casting ring, so that the casting ring is clamped by the roller and the pressure roller, so that the casting ring cannot move up and down during the shearing process. At the same time, the upper baffle in front of the pressure roller also blocks the casting ring. The upper baffle cooperates with the lower baffle to prevent the casting ring from falling out forward during the shearing process. The limiter cooperates with the roller and the lower baffle to simultaneously limit the up and down movement and the front and back movement of the casting ring, thereby improving the shearing stability and avoiding the casting ring falling out and causing shearing failure.

[0038] Preferably, it also includes a lifting cylinder, a sprocket and a chain, the lifting cylinder is vertically located on the rear side of the lifting frame, the base of the lifting cylinder is fixed, the piston end of the lifting cylinder is vertically upward, the sprocket is set at the end of the piston end of the lifting cylinder, the sprocket is rotatable, one end of the chain is fixed, and the other end of the chain is upwardly passed around the chain and fixedly connected to the first slider, and the chain is engaged with the sprocket.

[0039] By setting a lifting cylinder, a sprocket and a chain, since one end of the chain is fixed, when the piston end of the lifting cylinder moves upward and drives the sprocket to move upward, the chain continuously passes through the sprocket to drive the sprocket to rotate, so that the end of the chain connected to the first slider moves upward, thereby driving the lifting plate to move upward, and realizing the support of the casting ring by the roller. The lifting structure cooperates with the lifting cylinder, sprocket and chain. When the moving distance of the first slider is the same, the distance that the piston end of the lifting cylinder needs to move is only half of the distance required to directly use the lifting cylinder to drive the slider, that is, the lifting cylinder stroke can be halved, which greatly reduces the requirements for the lifting cylinder stroke and makes the installation of the structure more flexible.

[0040] Preferably, a blanking plate is further included, which is located on the front side of the support plate, one end of the blanking plate is close to the cutting position of the crocodile shears and is fixedly connected to the crocodile shears body, and the other end of the blanking plate is inclined downward.

[0041] By setting up a blanking plate, the casting ring is cut into segments by the crocodile shears and then falls onto the blanking plate. The segments slide down along the blanking plate. At this time, you only need to place a collection tool at the end of the blanking plate to quickly complete the collection of the segments, avoiding the segments falling directly and making the recovery of the segments more difficult.

[0042] Compared with the prior art, the present invention has at least the following advantages:

[0043] 1. In the present invention, a positioning structure is used to define the position of the casting ring. The lifting plate is slidably connected to the lifting frame. The lifting plate drives the rollers and the lower baffle to move upward until they contact the casting ring. The rollers provide support for the casting ring, and the lower baffle prevents the casting ring from sliding forward. The transmission structure is used to drive the casting ring to rotate. The piston end of the support cylinder is extended, so that the support rollers are against the outer wall of the casting ring, and the transmission rollers are against the inner wall of the casting ring. The casting ring is clamped by the transmission rollers and the support rollers. The rotation of the transmission rollers drives the casting ring to rotate, making it easier for the crocodile shears to cut the casting ring into sections. In the present invention, the support function for casting rings of different diameters is met by adjusting the upper and lower positions of the rollers. At the same time, the entire shearing process does not require manual use of shearing equipment, which is simple to operate and highly safe.

[0044] 2. In the present invention, a hook is provided to lift the casting ring. When lifting the casting ring, it is difficult to ensure that the transport roller will exactly contact the inner wall of the top of the casting ring at the beginning. The casting ring will rotate under its own gravity, causing the inner wall at the top to contact the transport roller, reaching a relatively stable state. Since the transport roller is rotatable, the friction between the casting ring and the transport roller during rotation is greatly reduced, allowing the casting ring to quickly rotate to a stable position for easy transportation, while reducing the friction loss of the transportation structure. At the same time, in order to facilitate the hook to lift the casting ring and then leave it, the lifting frame is designed as a structure with two vertical rods. The lifting plate is divided into a left plate and a right plate. The hook lifts the casting ring to the front side of the support plate. After the roller provides support for the casting ring, the hook can pass backward in sequence between the left and right plates and between the two vertical rods, so that the hook can leave the back side of the support plate.

[0045] 3. In the present invention, when the casting ring is sheared, the transmission roller drives the casting ring to rotate. By setting the contact roller, the rear side of the casting ring contacts multiple contact rollers. Since the contact roller can rotate, when the casting ring rotates, the contact roller can be driven by the casting ring to rotate, avoiding direct contact between the rear side of the casting ring and the front side of the support plate. The rolling friction between the casting ring and the contact roller replaces the sliding friction between the casting ring and the support plate, thereby reducing the friction force suffered by the casting ring during rotation, making the rotation of the casting ring smoother and more accurate, and reducing the energy consumption of the transmission roller.

[0046] 4. In the present invention, the push cylinder drives the protective plate to move left and right to accommodate casting rings of different diameters. By designing the protective plate into an L-shaped cross-section, plate A can prevent the casting ring from moving forward, and plate B can prevent the casting ring from moving left or right, further limiting the position of the casting ring when it is sheared, avoiding the occurrence of safety accidents caused by the casting ring falling out.

[0047] 5. In the present invention, by setting a limiter, when the casting ring is supported by the roller, the limit cylinder drives the pressure roller to move downward, and the pressure roller abuts against the outer side of the casting ring, so that the casting ring is clamped by the roller and the pressure roller, so that the casting ring cannot move up and down during the shearing process. At the same time, the upper baffle in front of the pressure roller also blocks the casting ring. The upper baffle cooperates with the lower baffle to prevent the casting ring from falling out forward during the shearing process. The limiter cooperates with the roller and the lower baffle to simultaneously limit the up and down movement and the front and back movement of the casting ring, thereby improving the shearing stability and avoiding the casting ring from falling out and causing shearing failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a front view of the overall structure of the present invention.

[0049] Figure 2 It is a left view of the overall structure of the present invention.

[0050] Figure 3 It is a top view of the overall structure of the present invention.

[0051] Figure 4 This is a state diagram of the hoisting casting ring of the present invention.

[0052] Figure 5 This is a state diagram of the shear casting ring of the present invention.

[0053] Figure 6 Schematic diagram of the diameter range of the shearable casting ring of the present invention.

[0054] In the figure, 1-support plate, 2-lower baffle, 3-lifting plate, 4-hook rod, 5-limiting cylinder, 6-pressure roller, 7-upper baffle, 8-contact roller, 9-lifting frame, 10-pushing cylinder, 11-transmission roller, 12-support roller, 13-transport roller, 14-support cylinder, 15-bracket, 16-blanking plate, 17-crocodile shear body, 18-crocodile shears, 19-protective plate, 20-first slider, 21-chute, 22-lifting cylinder, 23-rectangular opening, 24-sprocket, 25-chain, 26-connecting block, 27-roller, 28-casting ring. DETAILED DESCRIPTION

[0055] The present invention will be described in further detail below with reference to the accompanying drawings.

[0056] For the convenience of description, the following description concepts are introduced in the writing of this invention:

[0057] In the present invention, "front", "back", "left", "right", "up", and "down" all refer to the Figure 1 The direction in which 'front' refers to the Figure 1 In the figure, the back is facing outward relative to the paper. Figure 1 The center is facing inward relative to the paper.

[0058] See also Figure 1-6 The present invention provides an embodiment: a rapid cutting device suitable for annular castings of different diameters, comprising a positioning structure, a transmission structure and crocodile shears.

[0059] The positioning structure includes a support plate 1 , a lifting frame 9 and a lifting plate 3 .

[0060] There are two support plates 1 , and both support plates 1 are vertically arranged. The two support plates 1 are located in the same plane, and there is a distance between the two support plates 1 along the left-right direction.

[0061] The lifting frame 9 is vertically located at the rear side of the support plate 1 , and the lifting frame 9 is fixedly connected to the support plate 1 .

[0062] The lifting plate 3 is vertically located in front of the lifting frame 9 and is located between the two support plates 1 . The lifting plate 3 is slidably connected to the lifting frame 9 and can slide in the vertical direction.

[0063] Two rollers 27 are provided on the front side of the lifting plate 3 near the lower end. The axes of the rollers 27 are perpendicular to the front side of the lifting plate 3 , and the rear ends of the rollers 27 are fixedly connected to the lifting plate 3 .

[0064] A lower baffle 2 is provided on the front side of the two rollers 27. The rear side of the lower baffle 2 near the left and right ends is fixedly connected to the front ends of the two rollers 27 respectively, and the rollers 27 can rotate about the axis.

[0065] The transmission structure includes a transmission roller 11 and a support member. The transmission roller 11 is arranged on the front side of any support plate 1 near the lower end. The axis of the transmission roller 11 is perpendicular to the front side of the support plate 1, and the transmission roller 11 can rotate about the axis. The transmission roller 11 is in contact with the inner side of the casting ring 28, and the transmission roller 11 is used to drive the casting ring 28 to rotate.

[0066] The support member includes a support cylinder 14 and a support roller 12. The support cylinder 14 is located on the front side of the support plate 1, and the support cylinder 14 is located below the transmission roller 11. The base of the support cylinder 14 is fixedly connected to the front side of the support plate 1, and the piston end of the support cylinder 14 faces the transmission roller 11.

[0067] The support roller 12 is arranged at the end of the piston end of the support cylinder 14. The axis of the support roller 12 is perpendicular to the front side of the support plate 1, and the support roller 12 can rotate about the axis.

[0068] The crocodile shears are located between the two support plates 1 , below the crossbar of the lifting frame 9 , and the scissors 18 of the crocodile shears are arranged forward. The crocodile shears are used to shear the casting ring 28 .

[0069] Furthermore, it also includes a first slider 20 and a hook; the lifting frame 9 includes a transversely arranged horizontal bar and two vertically arranged vertical bars, the lower ends of the two vertical bars are fixedly connected to the upper surface of the horizontal bar, the two vertical bars are located between the two support plates 1, the position of the horizontal bar is close to the lower end surface of the support plate 1, and the front side surface of the horizontal bar is fixedly connected to the rear side surfaces of the two support plates 1 near the left and right ends.

[0070] The opposite sides of the two vertical rods are vertically provided with sliding grooves 21. The first slider 20 is located between the two vertical rods, and the left and right ends of the first slider 20 are slidably connected to the sliding grooves 21 on both sides. The first slider 20 can slide up and down along the sliding grooves 21 on both sides.

[0071] The lifting plate 3 includes a left plate and a right plate, which are respectively located on the front sides of the two vertical rods. The left plate and the right plate are located in the same plane, and there is a distance between the left plate and the right plate in the left and right directions. The rear sides of the left plate and the right plate are fixedly connected to the first slider 20, and the two rollers 27 are respectively fixedly connected to the left plate and the right plate.

[0072] The hook includes a transport roller 13 and a hook rod 4. The transport roller 13 is arranged horizontally, and the axis of the transport roller 13 is perpendicular to the front side of the support plate 1. One end of the hook rod 4 is fixedly connected to the rear end of the transport roller 13, and the other end of the hook rod 4 is bent upward, and the projection of the other end of the hook rod 4 in the vertical direction is located at the middle point of the transport roller 13. The transport roller 13 can rotate about its axis.

[0073] Furthermore, the first slider 20 is a U-shaped structure, the U-shaped opening of the first slider 20 is vertically upward, and the hook can pass through the U-shaped area of ​​the first slider 20.

[0074] Furthermore, the front sides of the two support plates 1 are each provided with a plurality of contact rollers 8, the axes of the contact rollers 8 are parallel to the front sides of the support plates 1, one end of the contact rollers 8 is close to between the two support plates 1, and the other end of the contact rollers 8 is away from between the two support plates 1, and the contact rollers 8 can rotate about the axis, and each contact roller 8 has and only has one contact position with each casting ring 28.

[0075] Furthermore, a protective plate 19 is provided on the front side of the two support plates 1 , and the protective plate 19 is located in front of the contact roller 8 , and the protective plate 19 is an arc-shaped plate structure facing between the two support plates 1 .

[0076] A pushing cylinder 10 is provided transversely on the rear side surfaces of the two support plates 1, and a rectangular opening 23 is provided transversely on the front side surfaces of the two support plates 1. A connecting block 26 is provided in the rectangular opening 23, and one end of the connecting block 26 is fixedly connected to the protective plate 19, and the other end of the connecting block 26 is fixedly connected to the piston end of the pushing cylinder 10.

[0077] In a specific implementation, the two push cylinders 10 are located between the two rectangular openings 23, with the piston ends of the two push cylinders 10 facing the corresponding rectangular openings 23, and the push cylinders 10 and the corresponding rectangular openings 23 are located on the same horizontal plane. This makes the layout of the push cylinders 10 and the rectangular openings 23 more reasonable and the installation easier.

[0078] During specific implementation, two slide plates are horizontally provided on the rear side surface of each support plate 1, and the two slide plates are respectively located on the upper and lower sides of the rectangular opening 23, and the slide of the slide plate is set forward. Two rectangular holes are horizontally provided on the front side surface of each support plate 1, and the two rectangular holes correspond to the positions of the two slide plates. The rectangular holes are connected to the slide, and each slide is provided with a second slider that can slide along the slide, and the forward end of the second slider is fixedly connected to the protective plate 19. By setting the slide and the second slider, the protective plate is more stable during the left and right movement, avoiding the gravity of the protective plate 19 directly acting on the pushing cylinder 10, thereby greatly improving the reliability of the structure.

[0079] Furthermore, the cross-section of the protective plate 19 is L-shaped, and the protective plate 19 includes an A plate and a B plate that are perpendicular to each other, the B plate is perpendicular to the front side of the support plate 1, the A plate is located in front of the B plate, and the A plate is located on the side of the B plate close to the two support plates 1.

[0080] Furthermore, the positioning structure further includes a limiting member, which is located at the front side of any lifting plate 3 , and includes a limiting cylinder 5 , an upper baffle 7 and two pressing rollers 6 .

[0081] The piston end of the limiting cylinder 5 is vertically downward, the cylinder body of the limiting cylinder 5 is fixedly connected to the corresponding lifting plate 3, and a connecting plate is horizontally provided at the end of the piston end of the limiting cylinder 5, and the connecting plate is fixedly connected to the piston end of the limiting cylinder 5.

[0082] The two pressure rollers 6 are respectively located on the front side of the connecting plate near the left and right ends. The pressure roller 6 is located above the supporting roller 27. The axis of the pressure roller 6 is perpendicular to the front side of the support plate 1. The rear end of the pressure roller 6 is fixedly connected to the connecting plate, and the pressure roller 6 can rotate about the axis.

[0083] The upper baffle 7 is laterally located in front of the two pressing rollers 6 , and the rear side of the upper baffle 7 is fixedly connected to the front ends of the two pressing rollers 6 .

[0084] In specific implementation, two slide rails are vertically provided on the left and right sides of the limit cylinder 5. The two slide rails are fixedly connected to the corresponding lifting plate 3. The connecting plate is slidably connected to the slide rails on both sides near the left and right ends, which increases the stability of the up and down movement of the pressure roller 6.

[0085] Furthermore, the lifting frame 9 includes a lifting cylinder 22, a sprocket 24, and a chain 25. The lifting cylinder 22 is vertically positioned at the rear side of the lifting frame 9. The base of the lifting cylinder 22 is fixed, and the piston end of the lifting cylinder 22 is vertically upward. The sprocket 24 is disposed at the end of the piston end of the lifting cylinder 22 and is rotatable. One end of the chain 25 is fixed, and the other end of the chain 25 is upwardly passed around the chain and fixedly connected to the first slider 20, and the chain 25 is meshed with the sprocket 24. In a specific implementation, the base of the lifting cylinder 22 is fixedly connected to the bracket 15, thereby securing the lifting cylinder 22.

[0086] Furthermore, it includes a blanking plate 16, which is located on the front side of the support plate 1, one end of the blanking plate 16 is close to the cutting position of the crocodile shears and is fixedly connected to the crocodile shears body 17, and the other end of the blanking plate 16 is inclined downward.

[0087] The working principle of the quick cutting device applicable to annular castings of different diameters defined in the present invention is as follows:

[0088] Lifting: First, combine the hook with the lifting and transportation device in the foundry, connect the hook rod 4 to the lifting end of the lifting device, and the lifting device will move the transport roller 13 to the inner side of the vertically placed casting ring 28. Then the lifting device drives the hook to move upward, and the transport roller 13 is against the uppermost position of the inner side of the casting ring 28 to provide support for the casting ring 28. The lifting device lifts the casting ring 28 to the front side of the support plate 1.

[0089] The rearward side of the casting ring 28 is against the contact roller 8, the casting ring 28 is located between the two protective plates 19, the casting ring 28 is partially located between the transmission roller 11 and the support roller 12, and the casting ring 28 is partially located between the idler 27 and the pressure roller 6. At this time, the lifting is completed, the hook moves downward, the inner side of the casting ring 28 is against the idler 27, and the idler 27 provides support for the casting ring 28. After the hook is separated from the casting ring 28, the hook moves backward from between the two lifting plates 3 to the rear side of the support plate 1, and then moves to the subsequent casting ring to prepare for the next lifting task.

[0090] Positioning: The piston end of the lifting cylinder 22 moves upward, driving the sprocket 24 to move upward. Since one end of the chain 25 is fixed, when the sprocket 24 moves upward, the chain 25 engages with the sprocket 24, causing the end of the chain 25 connected to the first slider 20 to move upward, thereby driving the first slider 20 to move upward. The first slider 20 drives the lifting plate 3 to move upward, and the lifting plate 3 drives the roller 27 to move upward, so that the roller 27 drives the casting ring 28 to move upward. When the inner side of the casting ring 28 contacts the transmission roller 11, the roller 27 stops moving upward.

[0091] The piston end of the limit cylinder 5 moves downward, driving the connecting plate to move downward along the slide rail, and the connecting plate drives the pressure roller 6 to move downward. When the pressure roller 6 abuts against the outer side of the casting ring 28, the pressure roller 6 stops moving downward. At this time, the casting ring 28 is clamped by the roller 27 and the pressure roller 6. At the same time, the lower baffle located in front of the roller 27 and the upper baffle located in front of the pressure roller 6 have overlapping parts, thereby limiting the up and down movement and forward and backward movement of the casting ring 28.

[0092] The piston ends of the two push cylinders 10 retract, and the push cylinders 10 drive the connecting blocks 26 to move toward each other in the rectangular opening 23. The connecting blocks 26 drive the protective plates 19 fixedly connected thereto to move toward each other. When the protective plates 19 approach the outside of the casting ring 28, the protective plates 19 stop moving toward each other. The protective plates 19 limit the left and right positions of the casting ring 28 during shearing, thereby preventing the casting ring 28 from being deformed by force and moving left and right to cause a safety accident.

[0093] Shearing: The piston end of the support cylinder 14 extends, and the support cylinder 14 drives the support roller 12 to approach the casting ring 28. When the support roller 12 contacts the outer side of the casting ring 28, the support cylinder 14 stops moving. At this time, the casting ring 28 is clamped by the transmission roller 11 and the support roller 12. The motor drives the transmission roller 11 to rotate intermittently, and the casting ring 28 is rotated intermittently by the transmission roller 11 under the action of friction.

[0094] Whenever the casting ring 28 stops rotating, the crocodile shears shear the casting ring 28, thereby cutting the casting ring 28 into segments. The segments slide down along the blanking plate 16. The segments can be easily collected by placing a collection tool at the end of the blanking plate 16.

[0095] The present invention satisfies the support function for casting rings with different diameters by adjusting the upper and lower positions of the rollers. Simultaneously, the entire shearing process does not require manual handling or the use of shearing equipment, and the operation is simple and safe.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Suitable for rapid cutting of annular castings of different diameters, characterized by: Including positioning structure, transmission structure and crocodile shears; The positioning structure comprises a support plate (1), a lifting frame (9) and a lifting plate (3); There are two support plates (1), and the two support plates (1) are both vertically arranged. The two support plates (1) are located in the same plane, and there is a distance between the two support plates (1) in the left-right direction; The front sides of the two support plates (1) are each provided with a plurality of contact rollers (8), the axes of the contact rollers (8) are parallel to the front sides of the support plates (1), one end of the contact rollers (8) is close to between the two support plates (1), and the other end of the contact rollers (8) is away from between the two support plates (1), and the contact rollers (8) can rotate about the axes, and each contact roller (8) has and has only one contact position with each casting ring (28); the front sides of the two support plates (1) are each provided with a protective plate (19), and the protective plate (19) is located on the front side of the contact rollers (8), and the protective plate (19) is an arc-shaped plate structure facing between the two support plates (1); The rear sides of the two support plates (1) are both laterally provided with a push cylinder (10), the front sides of the two support plates (1) are both laterally provided with a rectangular opening (23), a connecting block (26) is provided in the rectangular opening (23), one end of the connecting block (26) is fixedly connected to the protective plate (19), and the other end of the connecting block (26) is fixedly connected to the piston end of the push cylinder (10); The lifting frame (9) is vertically located on the rear side of the support plate (1), and the lifting frame (9) is fixedly connected to the support plate (1); The lifting plate (3) is vertically located in front of the lifting frame (9), and the lifting plate (3) is located between the two support plates (1). The lifting plate (3) is slidably connected to the lifting frame (9), and the lifting plate (3) can slide in the vertical direction; Two rollers (27) are provided on the front side of the lifting plate (3) near the lower end, the axes of the rollers (27) are perpendicular to the front side of the lifting plate (3), and the rear ends of the rollers (27) are fixedly connected to the lifting plate (3); A lower baffle (2) is provided on the front side of the two rollers (27); the rear side of the lower baffle (2) is fixedly connected to the front ends of the two rollers (27) near the left and right ends, and the rollers (27) can rotate about the axis; The transmission structure comprises a transmission roller (11) and a support member, wherein the transmission roller (11) is arranged on the front side of any support plate (1) near the lower end, the axis of the transmission roller (11) is perpendicular to the front side of the support plate (1), and the transmission roller (11) can rotate about the axis, the transmission roller (11) abuts against the inner side of the casting ring (28), and the transmission roller (11) is used to drive the casting ring (28) to rotate; The support member comprises a support cylinder (14) and a support roller (12), wherein the support cylinder (14) is located on the front side of the support plate (1), and the support cylinder (14) is located below the transmission roller (11), the base of the support cylinder (14) is fixedly connected to the front side of the support plate (1), and the piston end of the support cylinder (14) faces the transmission roller (11); The support roller (12) is arranged at the end of the piston end of the support cylinder (14), the axis of the support roller (12) is perpendicular to the front side of the support plate (1), and the support roller (12) can rotate about the axis; The crocodile shears are located between the two support plates (1), are located below the crossbar of the lifting frame (9), and the crocodile shears (18) are arranged forward. The crocodile shears are used to shear the casting ring (28).

2. The rapid cutting device for annular castings of different diameters according to claim 1, characterized in that: It also includes a first slider (20) and a hook; The lifting frame (9) comprises a horizontally arranged crossbar and two vertically arranged vertical bars, the lower ends of the two vertical bars are respectively fixedly connected to the upper surface of the crossbar, the two vertical bars are located between the two support plates (1), the crossbar is located close to the lower end surface of the support plate (1), and the front side surface of the crossbar is respectively fixedly connected to the rear side surfaces of the two support plates (1) near the left and right ends; The two vertical rods are provided with vertical sliding grooves (21) on the opposite sides. The first slider (20) is located between the two vertical rods, and the left and right ends of the first slider (20) are respectively slidably connected to the sliding grooves (21) on both sides. The first slider (20) can slide up and down along the sliding grooves (21) on both sides. The lifting plate (3) includes a left plate and a right plate, the left plate and the right plate are respectively located on the front side of the two vertical rods, the left plate and the right plate are located in the same plane, and there is a gap between the left plate and the right plate in the left and right directions. The rear side surfaces of the left plate and the right plate are fixedly connected to the first slider (20), and the two rollers (27) are respectively fixedly connected to the left plate and the right plate; The hook comprises a transport roller (13) and a hook rod (4); the transport roller (13) is arranged horizontally, and the axis of the transport roller (13) is perpendicular to the front side of the support plate (1); one end of the hook rod (4) is fixedly connected to the rear end of the transport roller (13); the other end of the hook rod (4) is bent upward, and the projection of the other end of the hook rod (4) in the vertical direction is located at the middle point of the transport roller (13); and the transport roller (13) can rotate about its axis.

3. The rapid cutting device for annular castings of different diameters according to claim 2, characterized in that: The first slider (20) is a U-shaped structure, the U-shaped opening of the first slider (20) is vertically upward, and the hook can pass through the U-shaped area of ​​the first slider (20).

4. The rapid cutting device for annular castings of different diameters according to claim 1, characterized in that: The cross section of the protective plate (19) is L-shaped. The protective plate (19) comprises a plate A and a plate B that are perpendicular to each other. The plate B is perpendicular to the front side of the support plate (1). The plate A is located in front of the plate B and is located on the side of the plate B close to the space between the two support plates (1).

5. The rapid cutting device for annular castings of different diameters according to claim 1, characterized in that: The positioning structure further comprises a limiting member, the limiting member being located at the front side of any lifting plate (3), the limiting member comprising a limiting cylinder (5), an upper baffle (7) and two pressure rollers (6); The piston end of the limiting cylinder (5) is vertically downward, the cylinder body of the limiting cylinder (5) is fixedly connected to the corresponding lifting plate (3), and a connecting plate is horizontally provided at the end of the piston end of the limiting cylinder (5), and the connecting plate is fixedly connected to the piston end of the limiting cylinder (5); The two pressure rollers (6) are respectively located on the front side of the connecting plate near the left and right ends, the pressure roller (6) is located above the supporting roller (27), the axis of the pressure roller (6) is perpendicular to the front side of the support plate (1), the rear end of the pressure roller (6) is fixedly connected to the connecting plate, and the pressure roller (6) can rotate about the axis; The upper baffle (7) is laterally located at the front side of the two pressing rollers (6), and the rear side surface of the upper baffle (7) is fixedly connected to the front ends of the two pressing rollers (6).

6. The rapid cutting device for annular castings of different diameters according to claim 1, characterized in that: The lifting frame (9) further comprises a lifting cylinder (22), a sprocket (24) and a chain (25). The lifting cylinder (22) is vertically located at the rear side of the lifting frame (9). The base of the lifting cylinder (22) is fixed. The piston end of the lifting cylinder (22) is vertically upward. The sprocket (24) is arranged at the end of the piston end of the lifting cylinder (22). The sprocket (24) is rotatable. One end of the chain (25) is fixed. The other end of the chain (25) is upwardly passed around the chain and fixedly connected to the first slider (20). The chain (25) is meshed with the sprocket (24).

7. The rapid cutting device for annular castings of different diameters according to claim 1, characterized in that: It also includes a blanking plate (16), which is located on the front side of the support plate (1), one end of the blanking plate (16) is close to the cutting position of the crocodile shears and is fixedly connected to the crocodile shears body (17), and the other end of the blanking plate (16) is inclined downward.

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