A casting roll bottom box demoulding device

Abstract

The present invention discloses a demoulding device for a bottom box of a casting roll, comprising a working platform, a workpiece fixing device, a demoulding ejection device and a PLC control system, wherein the workpiece fixing device is mounted on the top surface of the working platform, the demoulding ejection device is mounted on the bottom surface of the working platform, and the driving components on the workpiece fixing device and the demoulding ejection device are electrically connected to the PLC control system. The present invention is ingenious in conception, the workpiece is stably and reliably positioned by a plurality of claws, the ejection operation of the roll is safe and reliable, and will not cause damage to the bottom box, the entire operation process is automatically controlled, convenient and fast, and has higher safety.

Description

Technical Field

[0001] The invention relates to the technical field of roller casting equipment, in particular to a casting roller bottom box demoulding equipment. Background Art

[0002] After the roll casting is formed, it needs to be taken out from the mold. Due to the special casting process of the roll, the roll neck and the casting tube are connected together. After the molten iron solidifies, the roll neck and the molten iron solidification product in the casting tube form a Y-shaped structure, which makes it very difficult to take the roll out of the bottom box sand. In the past, the roll was taken out by the impact method, that is, the upper part of the roll is lifted by a crane, so that the roll is suspended in the air, and the crane is used to switch the walking direction to make the roll swing and hit the hard object until the sand is broken and the bottom box falls off. There are three disadvantages of this method: First, it violates the operating procedures of the crane. The operating procedures of the crane do not allow the swing of heavy objects, which is dangerous and will damage the crane. Second, the damage to the bottom box is very serious, and the bottom box is easily cracked. Third, the process of the bottom box falling off is very dangerous. The swing of heavy objects makes the position of the bottom box falling off uncontrollable, which is easy to hurt people or smash things or the ground.

[0003] Therefore, how to develop a casting roller bottom box demoulding equipment to steadily remove the roller from the molding sand in the bottom box has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0004] The purpose of the present invention is to provide a casting roll bottom box demoulding device to solve the problems of poor safety and easy damage of products in the prior art of taking out the rolls by impact method.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The present invention discloses a casting roller bottom box demoulding device, comprising a working platform, a workpiece fixing device, a demoulding ejection device and a PLC control system, wherein the workpiece fixing device is installed on the top surface of the working platform, the demoulding ejection device is installed on the bottom surface of the working platform, and the driving components on the workpiece fixing device and the demoulding ejection device are electrically connected to the PLC control system.

[0007] Furthermore, the workpiece fixing device includes a claw, a claw cylinder and a cylinder mounting assembly, the claw cylinder is fixed in place by the cylinder mounting assembly, the working end of the claw cylinder is connected to the bottom of the claw, and the working end of the claw cylinder drives the claw to move horizontally and linearly.

[0008] Furthermore, the workpiece fixing device is provided in three groups and is evenly distributed around the circumference. The working platform is specifically configured as an equilateral triangle plate or a circular plate. The three sharp corners of the equilateral triangle plate are cut off to form a mounting plane. The three groups of the workpiece fixing device are distributed at three corners.

[0009] Furthermore, the cylinder mounting assembly includes a support plate, a positioning plate and a limit column. The support plate is connected to the mounting plane at the corner of the working platform. The two positioning plates are symmetrically arranged and connected to the top surface of the support plate through a bolt assembly. The limit column is installed on the top of the positioning plate and clamped on both sides of the claw cylinder.

[0010] Furthermore, the positioning plate is specifically designed as an L-shaped plate, and the L-shaped plate includes a flat plate and a vertical plate, the flat plate and the vertical plate are integrally formed or welded together, and the limiting column is located in the top through hole of the vertical plate.

[0011] Furthermore, the working platform is provided with a plurality of slideways, and the clamping claws are slidably connected in the slideways.

[0012] Furthermore, the demolding and ejecting device includes a main oil cylinder bracket, a main oil cylinder, a ball head push rod and a ball seat. The top end of the main oil cylinder bracket is welded to the center of the bottom surface of the working platform. The telescopic rod of the main oil cylinder is installed at the bottom end of the main oil cylinder bracket through the cylinder connecting shaft. The top end of the main oil cylinder is connected to the ball seat, the bottom of the ball head push rod is connected to the ball seat, and the top end of the ball head push rod passes through the center hole of the working platform and is connected to a top plate.

[0013] Furthermore, the ball seat includes a base plate, a side plate and a baffle, the flat side of the base plate is connected to the master cylinder, the two side plates are connected to the curved side of the base plate and are symmetrically arranged, the baffle is connected to the side plate by bolts, and one end of the inclined surface of the baffle extends into the groove of the ball head top rod.

[0014] Furthermore, the cylinder connecting shaft is connected to the telescopic rod; a buffer sleeve is provided between the telescopic rod and the cylinder connecting shaft, the buffer sleeve is installed on the buffer sleeve positioning plate, a sleeve is provided on the main cylinder bracket, a guide sleeve is provided between the sleeve and the buffer sleeve, the cylinder connecting shaft passes through the sleeve, guide sleeve, buffer sleeve, guide sleeve, sleeve in sequence, and is tightened by an outer plate, and the outer plate is connected to the outer end face of the sleeve by bolts.

[0015] Furthermore, a plurality of guide plates are provided on the main oil cylinder bracket, the plurality of guide plates are evenly distributed at equal intervals, and both ends of the guide plates are connected to the main oil cylinder bracket by screws.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are:

[0017] The present invention discloses a demoulding device for a bottom box of a casting roll, comprising a working platform, three groups of workpiece fixing devices, a demoulding and ejecting device and a PLC control system. The workpiece fixing device and the demoulding and ejecting device are respectively mounted on both sides of the working platform. The workpiece fixing device comprises a clamping claw, a clamping claw oil cylinder and an oil cylinder mounting assembly. The oil cylinder mounting assembly comprises a supporting plate, a positioning plate and a limiting column. A slideway is mounted on the working platform, and the clamping claw is mounted in the slideway. The clamping claw is driven by the clamping claw oil cylinder to move horizontally along a slideway to realize the clamping and releasing operation of the workpiece. The demoulding and ejecting device comprises a main oil cylinder bracket, a main oil cylinder, a ball head push rod and a ball seat. The ball head push rod is connected to the main oil cylinder through the ball seat. The main oil cylinder is started to push the ball head push rod to move up and down, and the top plate on the ball head push rod pushes the roll on the workpiece out. The clamping claw oil cylinder and the main oil cylinder are both electrically connected to the PLC control system. Specifically, during operation, the workpiece formed by the roll casting is placed on the work platform, and the claws are remotely controlled by the PLC control system to move toward the center to clamp the workpiece. After the claws are in place, they stop moving, and then the main oil cylinder is controlled to extend upward, and the top plate at the top of the ball head push rod contacts the workpiece to push the roll out, and the crane comes over to lift the roll away; then the claws are released and reset, and the bottom box is lifted away by the overhead crane; the main oil cylinder descends and resets, and a job is completed at this time. Repeat the above steps to realize the separation operation of the roll in the next workpiece. The present invention is ingenious in conception, the workpiece is stably and reliably positioned by multiple claws, the operation of ejecting the roll is safe and reliable, and will not cause damage to the bottom box. The entire operation process is automatically controlled, which is convenient and fast, and has higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 A top view of the demoulding device for the bottom box of a casting roll according to the present invention;

[0020] Figure 2 For the present invention Figure 1 Sectional view at the middle FF position; (partial perspective)

[0021] Figure 3 This is a bottom view of the demoulding device for the bottom box of a casting roll of the present invention;

[0022] Figure 4 It is a side view of the demoulding device for the bottom box of the casting roll of the present invention;

[0023] Figure 5 For the present invention Figure 2 A magnified image of position A in the middle;

[0024] Figure 6 For the present invention Figure 2 Enlarged view of position B in the middle;

[0025] Figure 7 This is a schematic diagram of the structure of the oil cylinder installation assembly of the present invention;

[0026] Description of reference numerals: 1, working platform; 101, slideway; 2, claw; 3, claw cylinder; 301, support plate; 302, positioning plate; 303, limit column; 4, main cylinder bracket; 5, main cylinder; 501, telescopic rod; 6, ball head push rod; 7, ball seat; 701, bottom plate; 702, side plate; 703, baffle;

[0027] 8. Guide plate; 9. Cylinder connecting shaft; 901. Guide sleeve; 902. Casing; 903. Outer plate; 904. Buffer sleeve; 905. Buffer sleeve positioning plate; 10. Top plate. DETAILED DESCRIPTION

[0028] like Figure 1-4 As shown, a casting roll bottom box demoulding equipment includes a working platform 1, a workpiece fixing device, a demoulding ejection device and a PLC control system. The workpiece fixing device is installed on the top surface of the working platform 1, and the demoulding ejection device is installed on the bottom surface of the working platform 1. The driving components on the workpiece fixing device and the demoulding ejection device are electrically connected to the PLC control system. Specifically, it also includes a hydraulic system, which includes a hydraulic system composed of a hydraulic station and a distributor, which are respectively connected to the hydraulic cylinders for driving the workpiece fixing device and the demoulding ejection device to realize hydraulically driven horizontal movement positioning and lifting and ejection operations; the PLC control system includes a control center, a remote controller, a contactor and a relay; the contactor is used to start and stop the oil pump motor, the relay starts and stops the electromagnetic travel switch on the oil cylinder, and the remote controller is used to realize automatic button control. Through the description of the above assembly principle combined with the existing PLC programming technology, it is completely possible to realize the automatic control of the demoulding equipment, which will not be repeated here.

[0029] Specifically, Figure 1 , 2 As shown, the workpiece fixing device includes a clamping claw 2, a clamping claw cylinder 3 and a cylinder mounting assembly, the clamping claw cylinder 3 is fixed in place by the cylinder mounting assembly, the working end of the clamping claw cylinder 3 is connected to the bottom of the clamping claw 2, and the working end of the clamping claw cylinder 3 drives the clamping claw 2 to move horizontally and linearly. The workpiece fixing device is provided with three groups and is evenly distributed around the circumference. The working platform 1 is specifically set as an equilateral triangle plate or a circular plate, and the three sharp corners of the equilateral triangle plate are cut off to form a mounting plane. The three groups of the workpiece fixing devices are distributed at three corners.

[0030] like Figure 2 , 7As shown, the oil cylinder installation assembly includes a support plate 301, a positioning plate 302 and a limiting column 303. The support plate 301 is connected to the installation plane at the corner of the working platform 1. The two positioning plates 302 are symmetrically arranged and connected to the top surface of the support plate 301 through a bolt assembly. The limiting column 303 is installed on the top of the positioning plate 302 and clamped on both sides of the claw oil cylinder 3. The positioning plate 302 is specifically designed as an L-shaped plate, which includes a flat plate and a vertical plate. The flat plate and the vertical plate are integrally formed or welded together, and the limiting column 303 is located in the top through hole of the vertical plate.

[0031] The working platform 1 is provided with multiple sets of slideways 101, and the clamping claws 2 are slidably connected in the slideways 101. Specifically, there are three slideways on the working platform, which are distributed at an angle of 120° and are used to guide the movement of the clamping claws 2 for fixing the workpiece. The three clamping claws 2 move toward the center to clamp the workpiece, and move backward to release the workpiece, thereby completing the clamping operation of the workpiece.

[0032] like Figure 2 As shown, the demoulding ejection device includes a main cylinder bracket 4, a main cylinder 5, a ball head push rod 6 and a ball seat 7. The top of the main cylinder bracket 4 is welded to the center of the bottom surface of the working platform 1. The telescopic rod 501 of the main cylinder 5 is installed at the bottom end of the main cylinder bracket 4 through the cylinder connecting shaft 9. The top of the main cylinder 5 is connected to the ball seat 7. The bottom of the ball head push rod 6 is connected to the ball seat 7. The top of the ball head push rod 6 passes through the center hole of the working platform 1 and is connected to a top plate 10. Specifically, the ball head push rod 6 bears the wear caused by the friction with the molding sand, effectively protecting the main cylinder. The ejection power of the main cylinder directly acts on the workpiece through the top plate at the top of the ball head push rod. The detachable design of the top plate 10 allows the part to be quickly replaced after wear, thereby effectively ensuring the integrity of the ball head push rod 6.

[0033] Specifically, Figure 5 As shown, the ball seat 7 includes a bottom plate 701, a side plate 702 and a baffle 703. One side of the plane of the bottom plate 701 is connected to the main cylinder 5. The two side plates 702 are connected to one side of the arc surface of the bottom plate 701 and are symmetrically arranged. The baffle 703 is connected to the side plate 702 by bolts, and one end of the inclined surface of the baffle 703 extends into the groove of the ball head top rod 6.

[0034] like Figure 6As shown, the cylinder connecting shaft 9 is connected to the telescopic rod 501; a buffer sleeve 904 is arranged between the telescopic rod 501 and the cylinder connecting shaft 9, and the buffer sleeve 904 is installed on the buffer sleeve positioning plate 905. A sleeve 902 is arranged on the main cylinder bracket 4, and a guide sleeve 901 is arranged between the sleeve 902 and the buffer sleeve 904. The cylinder connecting shaft 9 passes through the sleeve 902, the guide sleeve 901, the buffer sleeve 904, the guide sleeve 901, and the sleeve 902 in sequence, and then is pressed by the outer plate 903. The outer plate 903 is connected to the outer end face of the sleeve 902 by bolts.

[0035] A plurality of guide plates 8 are arranged on the master cylinder bracket 4, and the plurality of guide plates 8 are evenly spaced. Both ends of the guide plates 8 are connected to the master cylinder bracket 4 by screws. A total of four groups of guide plates 8 are designed in the present application, and each group of guide plates 8 is symmetrically arranged with two guide plates 8. The arrangement of the guide plates 8 ensures the linear movement of the master cylinder.

[0036] The action process of the present invention is as follows:

[0037] First, the workpiece formed by the roll casting is placed on the working platform 1. The three claws 2 are remotely controlled by the PLC control system to move toward the center along the slide 101 and clamp the workpiece. The claws stop moving after they are in place, and then the main cylinder 5 is controlled to extend upward. The top plate 10 at the top of the ball head push rod 6 contacts the workpiece to push the roll out, and the crane comes over to lift the roll away; then the claws 2 are released and reset under the drive of the claw cylinder 3, and then the bottom box is lifted away by the overhead crane; the main cylinder 5 descends and resets, and a job is completed at this time. Repeat the above steps to realize the separation operation of the roll in the next workpiece. The equipment realizes the separation of the roll and the bottom box in a stable and motionless state, and the positioning and ejection operations are all controlled by cylinder automation, which is convenient and fast to operate, safe and reliable.

[0038] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A casting roll bottom box demoulding device, characterized in that: It comprises a working platform (1), a workpiece fixing device, a demoulding and ejecting device and a PLC control system, wherein the workpiece fixing device is mounted on the top surface of the working platform (1), the demoulding and ejecting device is mounted on the bottom surface of the working platform (1), and the driving components on the workpiece fixing device and the demoulding and ejecting device are electrically connected to the PLC control system; The workpiece fixing device comprises a clamping claw (2), a clamping claw oil cylinder (3) and an oil cylinder mounting assembly, wherein the clamping claw oil cylinder (3) is fixed in position by the oil cylinder mounting assembly, the working end of the clamping claw oil cylinder (3) is connected to the bottom of the clamping claw (2), and the working end of the clamping claw oil cylinder (3) drives the clamping claw (2) to move horizontally and linearly; The demoulding and ejecting device comprises a main cylinder bracket (4), a main cylinder (5), a ball head push rod (6) and a ball seat (7); the top end of the main cylinder bracket (4) is welded to the center of the bottom surface of the working platform (1); the telescopic rod (501) of the main cylinder (5) is installed at the bottom end inside the main cylinder bracket (4) through a cylinder connecting shaft (9); the top end of the main cylinder (5) is connected to the ball seat (7); the bottom of the ball head push rod (6) is connected to the ball seat (7); the top end of the ball head push rod (6) passes through the center hole of the working platform (1) and is connected to a top plate (10).

2. The casting roll bottom box demoulding equipment according to claim 1 is characterized in that: The workpiece fixing devices are provided in three groups and are evenly distributed around the circumference. The working platform (1) is specifically provided as an equilateral triangle plate or a circular plate. The three sharp corners of the equilateral triangle plate are cut off to form a mounting plane. The three groups of workpiece fixing devices are distributed at the three corners.

3. The casting roll bottom box demoulding equipment according to claim 2 is characterized in that: The cylinder mounting assembly comprises a support plate (301), a positioning plate (302) and a limiting column (303); the support plate (301) is connected to a mounting plane at a corner of the working platform (1); two positioning plates (302) are symmetrically arranged and connected to the top surface of the support plate (301) via a bolt assembly; the limiting column (303) is mounted on the top of the positioning plate (302) and clamped on both sides of the claw cylinder (3).

4. The casting roll bottom box demoulding equipment according to claim 3 is characterized in that: The positioning plate (302) is specifically designed as an L-shaped plate, which comprises a flat plate and a vertical plate, wherein the flat plate and the vertical plate are integrally formed or welded together, and the limiting column (303) is located in a top through hole of the vertical plate.

5. The casting roll bottom box demoulding equipment according to claim 1 is characterized in that: The working platform (1) is provided with a plurality of slideways (101), and the clamping claws (2) are slidably connected in the slideways (101).

6. The casting roll bottom box demoulding equipment according to claim 1 is characterized in that: The ball seat (7) comprises a bottom plate (701), a side plate (702) and a baffle (703); one side of the plane of the bottom plate (701) is connected to the main oil cylinder (5); the two side plates (702) are connected to one side of the arc surface of the bottom plate (701) and are symmetrically arranged; the baffle (703) is connected to the side plate (702) by bolts, and one end of the inclined surface of the baffle (703) extends into the groove of the ball head push rod (6).

7. The casting roll bottom box demoulding equipment according to claim 1 is characterized in that: The oil cylinder connecting shaft (9) is connected to the telescopic rod (501); a buffer sleeve (904) is arranged between the telescopic rod (501) and the oil cylinder connecting shaft (9); the buffer sleeve (904) is installed on the buffer sleeve positioning plate (905); a sleeve (902) is arranged on the main oil cylinder bracket (4); a guide sleeve (901) is arranged between the sleeve (902) and the buffer sleeve (904); the oil cylinder connecting shaft (9) passes through the sleeve (902), the guide sleeve (901), the buffer sleeve (904), the guide sleeve (901), and the sleeve (902) in sequence, and is then pressed by an outer plate (903); the outer plate (903) is connected to the outer end face of the sleeve (902) by bolts.

8. The casting roll bottom box demoulding equipment according to claim 1 is characterized in that: A plurality of guide plates (8) are arranged on the main oil cylinder bracket (4), the plurality of guide plates (8) are evenly spaced, and the two ends of the guide plates (8) are connected to the main oil cylinder bracket (4) by means of screws.

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