Low-pressure casting machine capable of reducing workpiece collision damage

Abstract

The utility model discloses a low-pressure casting machine capable of reducing collision and damage of workpieces, which belongs to the technical field of low-pressure casting equipment and comprises a bottom plate, support rods distributed in a rectangular shape are welded on one side of the top of the bottom plate, and the top ends of the support rods are welded at four corners of the bottom of a support plate. The material receiving mechanism and the material pushing mechanism are arranged to work in a matched mode, the material receiving mechanism can control the material receiving box to move to the bottom of the upper die and stably receive and collect the workpieces ejected out by the material pushing mechanism, and the material pushing mechanism is arranged between the bottom of the supporting plate and the top of the bottom plate. The device is simple in structure, convenient to use by an operator and capable of improving the working efficiency, and secondly, by arranging the buffering mechanism, vibration generated in the material receiving process of the material receiving box can be subjected to double buffering absorption, so that workpieces can stably fall into the material receiving box, the probability that the workpieces are collided and damaged when being demolded and discharged is reduced, and the working efficiency is improved. And the quality of the workpiece is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-pressure casting equipment, in particular to a low-pressure casting machine capable of reducing the damage caused by collision of workpieces. Background Art

[0002] Low-pressure casting refers to a casting method in which the mold is generally placed above a sealed crucible, compressed air is introduced into the crucible, and low pressure (0.06-0.15MPa) is created on the surface of the molten metal, so that the molten metal rises from the riser to fill the mold and control solidification. This casting method has good shrinkage compensation, dense casting structure, and is easy to cast large, thin-walled, complex castings. No riser is required, and the metal recovery rate reaches 95%. It is pollution-free and easy to automate.

[0003] Most of the existing low-pressure casting machines receive the materials of the workpiece after casting by setting a slidable material receiving trolley. However, it is not convenient to control the height between the material receiving trolley and the upper mold during use, so that the workpiece is easily collided with the material receiving trolley due to its own gravity during demolding and discharging, and the buffering and shock absorption effect is poor during material receiving, which can easily cause damage to the workpiece, which is not conducive to people's use. Therefore, technical personnel in this field provide a low-pressure casting machine that can reduce the damage of workpiece collision to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a low-pressure casting machine capable of reducing damage to workpieces caused by collision, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-pressure casting machine capable of reducing damage to workpieces caused by bumps and collisions, comprising a base plate, a top side of the base plate is welded with support rods distributed in a rectangular shape, the top ends of the support rods are welded to the four corners of the bottom of the support plate, a casting mechanism for casting the workpiece is provided between the bottom of the support plate and the top of the base plate, a pushing mechanism is provided inside the casting mechanism, a receiving mechanism is provided on one side of the casting mechanism and is located at the top of the base plate for receiving the workpiece after casting is completed, and a buffer mechanism is provided at the bottom of the receiving mechanism for receiving the material.

[0006] Preferably: the casting mechanism includes a lifting plate, a driving cylinder, an upper mold and a lower mold, the surface of the support rod is penetrated by a lifting block that is slidably connected, one side end of the lifting block is welded to the side wall of the lifting plate, a driving cylinder is fixedly installed in the middle of the top of the support plate, the top surface of the movable end of the driving cylinder penetrates the support plate and is installed on the top of the lifting plate by screws, connecting rods are symmetrically welded on the bottom of the support plate, the other ends of the connecting rods are welded to both sides of the top of the upper mold, a lower mold located on the top of the bottom plate is fixedly installed below the upper mold, a pushing mechanism is provided inside the upper mold, and a receiving mechanism is provided on one side of the lower mold.

[0007] Preferably: the pushing mechanism includes a hydraulic cylinder and a pushing plate, two hydraulic cylinders are fixedly installed on the bottom of the lifting plate, the upper mold is slidably connected to the pushing plate, and the top surfaces of the movable ends of the two hydraulic cylinders pass through the upper mold and are fixedly connected to the top of the pushing plate.

[0008] Preferably: the material receiving mechanism comprises a mounting frame, a movable plate, a material receiving box and a driving assembly for driving the same; a fixing rod located on the top of the bottom plate and distributed in a rectangular shape is welded to one side of the lower mold; a mounting frame is welded to the top of the fixing rod; sliding grooves are symmetrically provided on the inner wall of the mounting frame; the two side ends of the movable plate are slidingly connected inside the sliding grooves; a driving assembly is installed at one end of the bottom of the mounting frame; a material receiving box is provided above the movable plate, and the bottom of the material receiving box is connected to the top of the movable plate via a buffer assembly.

[0009] Preferably, a ceramic fiber paper gasket is laid on the inner surface of the receiving box.

[0010] Preferably: the driving assembly comprises a motor, a bidirectional screw, a moving block, a folding rod and a connecting block, a mounting seat is symmetrically welded at one end of the bottom of the mounting frame, a motor is mounted on the side of one of the mounting seats by a screw, the output end of the motor is fixedly connected to the bidirectional screw by a rotating shaft, the other end of the bidirectional screw passes through the mounting seat and is rotatably connected to the side wall of the other mounting seat by a bearing seat, the surface of the bidirectional screw is rotatably connected to two moving blocks by threads, one side of the two moving blocks is hingedly connected to a folding rod, a mounting plate is welded at one end of the bottom of the moving plate away from the moving block, two convex grooves are provided on the side of the mounting plate close to the folding rod, the two convex grooves are slidably connected to connecting blocks, and the ends of the folding rods away from the moving blocks are hingedly connected to the side of the connecting block.

[0011] Preferably: the buffer mechanism includes a buffer spring, a shock-absorbing rod, a U-shaped block and a shock-absorbing pad, buffer springs are welded at the four corners of the bottom of the receiving box, the other end of the buffer spring is welded to the top of the movable plate, and a telescopic rod penetrating the buffer spring is fixedly installed between the top of the movable plate and the bottom of the receiving box, shock-absorbing rods are cross-welded between the top of the movable plate and the bottom of the receiving box, a U-shaped block is welded at the other end of the shock-absorbing rod, shock-absorbing pads corresponding to the U-shaped block are fixedly installed on the top of the movable plate and the bottom of the receiving box, and the shock-absorbing pads are slidably plug-connected to the inner wall of the U-shaped block.

[0012] Preferably, the shock-absorbing pad is made of rubber.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the low-pressure casting machine capable of reducing damage to workpieces by collision is provided with a material receiving mechanism and a material pushing mechanism that cooperate with each other. The material receiving mechanism can control the material receiving box to move to the bottom of the upper mold and stably catch and collect the workpieces ejected by the material pushing mechanism, which is convenient for the operator to use and improves work efficiency.

[0015] 2. In the utility model, the low-pressure casting machine capable of reducing the damage to the workpiece caused by collision is provided with a buffer mechanism, which can double-buffer and absorb the vibration generated during the material receiving process of the receiving box, so that the workpiece can stably fall into the receiving box, thereby reducing the probability of collision and damage to the workpiece when it is demolded and discharged, and further improving the quality of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 It is an enlarged view of the overall structure of the drive assembly of the utility model;

[0019] Figure 4 for Figure 2 A is an enlarged view of the middle image.

[0020] In the figure: 1, bottom plate; 2, support rod; 3, support plate; 9, fixing rod; 10, slide groove; 11, ceramic fiber paper gasket; 12, mounting seat; 13, mounting plate; 14, convex groove; 41, lifting plate; 42, driving cylinder; 43, upper mold; 44, lower mold; 45, lifting block; 46, connecting rod; 51, hydraulic cylinder; 52, push plate; 61, mounting frame; 62, moving plate; 63, receiving box; 71, motor; 72, bidirectional screw; 73, moving block; 74, folding rod; 75, connecting block; 81, buffer spring; 82, shock-absorbing rod; 83, U-shaped block; 84, shock-absorbing pad; 85, telescopic rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 to Figure 4 In the embodiment of the utility model, a low-pressure casting machine capable of reducing damage to workpieces by collision comprises a bottom plate 1, a rectangularly distributed support rod 2 is welded on one side of the top of the bottom plate 1, and the top ends of the support rods 2 are welded to the four corners of the bottom of the support plate 3. A casting mechanism for casting the workpiece is provided between the bottom of the support plate 3 and the top of the bottom plate 1, and the casting mechanism comprises a lifting plate 41, a driving cylinder 42, an upper mold 43 and a lower mold 44. A lifting block 45 is slidably connected to the surface of the support rod 2, and one end of the lifting block 45 is welded to the side wall of the lifting plate 41. A driving cylinder 42 is fixedly installed in the middle of the top of the support plate 3, and the top surface of the movable end of the driving cylinder 42 penetrates the support plate 3 and is installed on the top of the lifting plate 41 by screws. A connecting rod 46 is symmetrically welded on the bottom of the support plate 3, and the other end of the connecting rod 46 is welded to both sides of the top of the upper mold 43. A lower mold 44 located at the top of the bottom plate 1 is fixedly installed below the upper mold 43.

[0023] When in use, the driving cylinder 42 is started to extend its active end, thereby driving the lifting plate 41 to move downward. When the lifting plate 41 moves downward, the lifting block 45 slides on the surface of the support rod 2. The provided support rod 2 is used to improve the overall stability of the lifting plate 41 during the lifting movement. When the lifting plate 41 moves downward, the upper mold 43 is driven downward by the connecting rod 46, thereby closing the upper mold 43 and the lower mold 44 to cast the workpiece. After the casting is completed, the active end of the driving cylinder 42 is retracted, thereby driving the upper mold 43 to move upward through the lifting plate 41, and driving the workpiece to separate from the lower mold 44 when the upper mold 43 moves upward.

[0024] A pushing mechanism is provided inside the upper mold 43, and the pushing mechanism includes a hydraulic cylinder 51 and a pushing plate 52. Two hydraulic cylinders 51 are fixedly installed at the bottom of the lifting plate 41, and a pushing plate 52 is slidably connected inside the upper mold 43. The top surfaces of the movable ends of the two hydraulic cylinders 51 pass through the upper mold 43 and are fixedly connected to the top of the pushing plate 52. When in use, when the upper mold 43 drives the workpiece to move upward, the movable end of the hydraulic cylinder 51 is controlled to extend, so that the pushing plate 52 that is against the upper surface of the workpiece moves downward accordingly, and then the pushing plate 52 can push the workpiece out of the cavity of the upper mold 43. The structure is simple and easy to use.

[0025] One side of the lower mold 44 is provided with a receiving mechanism located at the top of the base plate 1 for receiving the workpiece after casting. The receiving mechanism includes a mounting frame 61, a movable plate 62, a receiving box 63 and a driving component for driving the same. A fixing rod 9 located at the top of the base plate 1 and distributed in a rectangular shape is welded to one side of the lower mold 44. A mounting frame 61 is welded to the top of the fixing rod 9. The inner wall of the mounting frame 61 is symmetrically provided with slide grooves 10. The inside of the slide grooves 10 is slidably connected to the two side ends of the movable plate 62. A driving component is installed at one end of the bottom of the mounting frame 61. A receiving box 63 is provided above the movable plate 62 for receiving the workpiece after casting. The bottom of the receiving box 63 is connected to the top of the movable plate 62 by a buffer component. The inner cavity surface of the receiving box 63 is paved with a ceramic fiber paper gasket 11. The provided ceramic fiber paper gasket 11 has the properties of high temperature and high pressure resistance, acid and corrosion resistance, tough texture and strong wind erosion resistance.

[0026] The driving assembly includes a motor 71, a bidirectional screw 72, a moving block 73, a folding rod 74 and a connecting block 75. A mounting seat 12 is symmetrically welded to one end of the bottom of the mounting frame 61, and a motor 71 is installed on the side of one of the mounting seats 12 by screws. The output end of the motor 71 is fixedly connected to the bidirectional screw 72 through a rotating shaft, and the other end of the bidirectional screw 72 penetrates the mounting seat 12 and is rotatably connected to the side wall of the other mounting seat 12 through a bearing seat. The surface of the bidirectional screw 72 is rotatably connected to two moving blocks 73 by threads, and one side of the two moving blocks 73 is hingedly connected to a folding rod 74. A mounting plate 13 is welded to one end of the bottom of the moving plate 62 away from the moving block 73, and two convex grooves 14 are provided on the side of the mounting plate 13 close to the folding rod 74. The two convex grooves 14 are slidably connected to the connecting blocks 75, and the ends of the folding rods 74 away from the moving blocks 73 are hingedly connected to the sides of the connecting blocks 75.

[0027] When in use, the motor 71 is started, and the bidirectional screw 72 is rotated when the output end of the motor 71 rotates, thereby driving the moving block 73 to move closer to each other on its surface through the rotation of the bidirectional screw 72. When the moving block 73 moves in translation, it drives one end of the folding rod 74 hingedly connected to it to move synchronously. At this time, the other end of the folding rod 74 drives the connecting block 75 hingedly connected to it to slide closer to each other inside the convex groove 14, and then the angle between the folding rods 74 continues to increase, so that the mounting plate 13 drives the two side ends of the moving plate 62 to move in the inside of the slide groove 10 toward one end close to the upper mold 43. The movable plate 62 moves sideways, and the receiving box 63 is driven to move synchronously with it through the buffer mechanism, so that the receiving box 63 is at the bottom of the upper mold 43. At this time, the movable end of the driving cylinder 42 is controlled to extend so that the lifting plate 41 drives the upper mold 43 to move downward. When the cast workpiece and the inner surface of the receiving box 63 reach a suitable receiving distance, the movable end of the hydraulic cylinder 51 can be controlled to extend to push the workpiece out of the cavity of the upper mold 43 through the pushing plate 52, and then fall into the receiving box 63, thereby avoiding the situation where the workpiece is damaged when it is demolded and falls due to the large distance between the receiving box 63 and the upper mold 43 during material receiving.

[0028] The buffer mechanism includes a buffer spring 81, a shock-absorbing rod 82, a U-shaped block 83 and a shock-absorbing pad 84. The four corners of the bottom of the receiving box 63 are welded with buffer springs 81, and the other end of the buffer spring 81 is welded to the top of the moving plate 62, and a telescopic rod 85 that penetrates the buffer spring 81 is fixedly installed between the top of the moving plate 62 and the bottom of the receiving box 63. The telescopic rod 85 is provided to prevent the buffer spring 81 from lateral deformation during operation. The top of the moving plate 62 and the bottom of the receiving box 63 are cross-welded with shock-absorbing rods 82, and the other end of the shock-absorbing rod 82 is welded with a U-shaped block 83. The top of the moving plate 62 and the bottom of the receiving box 63 are both fixedly installed with shock-absorbing pads 84 corresponding to the U-shaped block 83, and the shock-absorbing pads 84 are slidably plugged and connected to the inner wall of the U-shaped block 83. The shock-absorbing pads 84 are made of rubber material, have good elasticity and energy absorption performance, can effectively reduce vibration, are not easy to age and corrode, and have a long service life.

[0029] During use, when the workpiece falls into the receiving box 63, the gravity of the workpiece itself causes the receiving box 63 to move downward. When the receiving box 63 moves downward, the buffer spring 81 and the telescopic rod 85 are compressed, thereby absorbing the generated vibration. When the receiving box 63 moves downward, the shock-absorbing pad 84 is compressed in the inner wall of the U-shaped block 83, and the inertia of the shock-absorbing pad 84 drives the receiving box 63 to rebound upward, further absorbing the generated vibration, thereby increasing the stability of the receiving box 63 in receiving the workpiece, reducing the probability of the workpiece being scratched or damaged during demolding and discharging, and effectively protecting the workpiece.

[0030] Working principle: When the low-pressure casting machine capable of reducing damage to the workpiece is to be used, the casting mechanism is moved downward by controlling the movable end of the driving cylinder 42 to extend. When the upper mold 43 and the lower mold 44 are closed and the casting is completed, the movable end of the driving cylinder 42 is retracted, and the upper mold 43 is driven to move upward through the lifting plate 41, so that the upper mold 43 drives the workpiece to separate from the lower mold 44 and move up to a suitable receiving position with the receiving box 63. At this time, the starting motor 71 controls the movement of the driving assembly to move the movable plate 62 to the side close to the upper mold 43. Move, and when the movable plate 62 moves, the receiving box 63 is driven to move synchronously through the buffer mechanism, so that the receiving box 63 is at the bottom of the upper mold 43, and then the movable ends of the hydraulic cylinders 51 are controlled to extend at the same time so that the push plate 52 pushes the workpiece out of the cavity of the upper mold 43, and then the workpiece falls into the receiving box 63. At this time, due to the gravity of the workpiece itself, the receiving box 63 moves downward, thereby driving the buffer assembly to operate, buffering and absorbing the generated vibration, increasing the stability of the receiving box 63 in receiving the workpiece, and reducing the probability of the workpiece being scratched or damaged when being demolded.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A low-pressure casting machine capable of reducing damage to workpieces caused by collision, comprising a bottom plate (1), characterized in that: A rectangularly distributed support rod (2) is welded to one side of the top of the base plate (1), and the top ends of the support rods (2) are welded to the four corners of the bottom of the support plate (3). A casting mechanism for casting a workpiece is provided between the bottom of the support plate (3) and the top of the base plate (1), and a pushing mechanism is provided inside the casting mechanism. A receiving mechanism is provided on one side of the casting mechanism and is located at the top of the base plate (1) for receiving the workpiece after casting. A buffer mechanism for receiving the material is provided at the bottom of the receiving mechanism.

2. The low-pressure casting machine capable of reducing damage to workpieces caused by collision according to claim 1, characterized in that: The casting mechanism comprises a lifting plate (41), a driving cylinder (42), an upper mold (43) and a lower mold (44); a lifting block (45) is slidably connected to the surface of the support rod (2); one end of the lifting block (45) is welded to the side wall of the lifting plate (41); a driving cylinder (42) is fixedly installed in the middle of the top of the support plate (3); the top surface of the movable end of the driving cylinder (42) passes through the support plate (3) and is installed on the top of the lifting plate (41) by screws; a connecting rod (46) is symmetrically welded to the bottom of the support plate (3); the other end of the connecting rod (46) is welded to both sides of the top of the upper mold (43); a lower mold (44) located at the top of the bottom plate (1) is fixedly installed below the upper mold (43); a material pushing mechanism is provided inside the upper mold (43); and a material receiving mechanism is provided on one side of the lower mold (44) located at the top of the bottom plate (1).

3. The low-pressure casting machine capable of reducing damage to workpieces due to collision according to claim 2, characterized in that: The pushing mechanism comprises a hydraulic cylinder (51) and a pushing plate (52); two hydraulic cylinders (51) are fixedly installed at the bottom of the lifting plate (41); the upper mold (43) is slidably connected to the pushing plate (52); the top surfaces of the movable ends of the two hydraulic cylinders (51) penetrate the upper mold (43) and are fixedly connected to the top of the pushing plate (52).

4. The low-pressure casting machine capable of reducing damage to workpieces due to collision according to claim 2, characterized in that: The material receiving mechanism comprises a mounting frame (61), a movable plate (62), a material receiving box (63) and a driving assembly for driving the same. A fixing rod (9) located at the top of the bottom plate (1) and distributed in a rectangular shape is welded to one side of the lower mold (44). The top of the fixing rod (9) is welded to the mounting frame (61). The inner wall of the mounting frame (61) is symmetrically provided with sliding grooves (10). The inside of the sliding grooves (10) is slidably connected to the two side ends of the movable plate (62). A driving assembly is installed at one end of the bottom of the mounting frame (61). A material receiving box (63) is provided above the movable plate (62), and the bottom of the material receiving box (63) is connected to the top of the movable plate (62) via a buffer assembly.

5. The low-pressure casting machine capable of reducing damage to workpieces caused by collision according to claim 4, characterized in that: The inner surface of the receiving box (63) is paved with a ceramic fiber paper gasket (11).

6. The low-pressure casting machine capable of reducing damage to workpieces due to collision according to claim 4, characterized in that: The driving assembly comprises a motor (71), a bidirectional screw (72), a moving block (73), a folding rod (74) and a connecting block (75); a mounting seat (12) is symmetrically welded to one end of the bottom of the mounting frame (61); a motor (71) is mounted on the side of one of the mounting seats (12) by means of screws; an output end of the motor (71) is fixedly connected to a bidirectional screw (72) by means of a rotating shaft; the other end of the bidirectional screw (72) passes through the mounting seat (12) and is rotatably connected to the side wall of another mounting seat (12) by means of a bearing seat; the bidirectional screw (72) 2) is connected to the surface of the movable plate (62) by threaded rotation, and one side of the two movable blocks (73) is hingedly connected to a folding rod (74). A mounting plate (13) is welded to the end of the bottom of the movable plate (62) away from the movable block (73), and two convex grooves (14) are provided on the side of the mounting plate (13) close to the folding rod (74). The two convex grooves (14) are slidably connected to a connecting block (75) inside, and the end of the folding rod (74) away from the movable block (73) is hingedly connected to the side of the connecting block (75).

7. The low-pressure casting machine capable of reducing damage to workpieces caused by collision according to claim 4, characterized in that: The buffer mechanism comprises a buffer spring (81), a shock absorbing rod (82), a U-shaped block (83) and a shock absorbing pad (84); the four corners of the bottom of the material receiving box (63) are welded with buffer springs (81); the other end of the buffer spring (81) is welded to the top of the movable plate (62); a telescopic rod (85) penetrating the buffer spring (81) is fixedly installed between the top of the movable plate (62) and the bottom of the material receiving box (63); the top of the movable plate (62) and the bottom of the material receiving box (63) are cross-welded with shock absorbing rods (82); the other end of the shock absorbing rod (82) is welded with a U-shaped block (83); the top of the movable plate (62) and the bottom of the material receiving box (63) are both fixedly installed with shock absorbing pads (84) corresponding to the U-shaped block (83); and the shock absorbing pads (84) are slidably plug-connected with the inner wall of the U-shaped block (83).

8. The low-pressure casting machine capable of reducing damage to workpieces caused by collision according to claim 7, characterized in that: The shock-absorbing pad (84) is made of rubber.

Images