CN211708085U - Low-pressure casting machine capable of reducing collision damage of workpiece - Google Patents

Abstract

The utility model belongs to the technical field of the technique of low pressure casting equipment and specifically relates to a can reduce work piece low pressure casting machine of damage of colliding with is related to, it includes the cope match-plate pattern, go up the mould, the liftout cylinder with connect the material dolly, still including accepting the board, it sets up along the horizontal direction to accept the board, it links to each other with connecing and being equipped with vertical supporting spring to accept between the material dolly to accept the board, be equipped with the transfer line on the board, the transfer line top is located the cope match-plate pattern top, and buckle towards the cope match-plate pattern, the cope match-plate pattern below is equipped with the thimble board, the thimble board slides along vertical direction and sets up on the cope match-plate pattern, the upper surface of thimble board links to each other with the piston rod of liftout cylinder. The utility model discloses have the finished product that bearing and last mould break away from steadily and shift out the finished product, reduce colliding with that the finished product received, carry out the effect of better ground protection to the finished product.

Description

Low-pressure casting machine capable of reducing collision damage of workpiece

Technical Field

The utility model belongs to the technical field of the technique of low pressure casting equipment and specifically relates to a can reduce low pressure casting machine that work piece collided with damage is related to.

Background

Low pressure casting refers to a casting method in which a mold is placed above a sealed crucible, compressed air is introduced into the crucible to cause a low pressure on the surface of molten metal, and molten metal is raised from a lift tube to fill the mold and to control solidification. The casting method has good feeding, and the obtained casting has compact structure and good mechanical property, so the method is widely applied to the production of castings of automobile cylinder bodies, cylinder covers, wheel hubs and the like.

Chinese patent with publication number CN108262462A discloses a low-pressure casting machine, which comprises a workbench, the inside heat preservation stove that is equipped with of workstation, the inside stalk that is equipped with of heat preservation stove, heat preservation furnace top is equipped with the calibration piece, the calibration piece sets up in the stalk outside, the workstation top is equipped with the bed die, the bed die top is equipped with the mould, it is equipped with the mounting hole to go up mould top four corners, it is equipped with the cope match-plate pattern to go up the mould top, the cope match-plate pattern bottom is equipped with installation pole and first hydraulic stem and the top is equipped with the clamp plate, workstation top both sides are equipped with the curb plate, be equipped with lead screw and guide rail on the curb plate, the guide rail sets up in the lead screw both sides, the clamp plate both sides are equipped.

The low-pressure casting machine drives the sleeve to move upwards by rotating the screw rod, so that the pressing plate, the upper die, the top die plate and the finished product are driven to move upwards, and the finished product is separated from the lower die. And then the first hydraulic rod is pushed out downwards to separate the finished product from the upper die, so that the demoulding action is completed.

The low-pressure casting machine is mostly provided with a horizontally-sliding material receiving trolley, and the material receiving trolley slides to the lower part of the upper die after the upper die is lifted, is used for supporting a finished product separated from the upper die and transferring the finished product out. In order to ensure that the finished product can be smoothly moved away from the lower part of the upper die along with the material receiving trolley, the height difference between the material receiving trolley and the upper die is not less than the height of the finished product, so that the finished product can fall on the material receiving trolley at a certain speed and collide with the material receiving trolley. At the moment, the finished product is still in a high-temperature state, is soft in texture, and is easy to deform and damage in the collision process.

In order to solve the problems, the Chinese patent with the publication number of CN206732101U discloses a low-pressure casting machine part taking trolley, which comprises a trolley body, a linear guide rail, a lifting sliding table, a lifting hydraulic oil cylinder, a part taking arm, a part taking hopper, a gear rack, a hydraulic motor and an adjusting screw rod; the trolley body is provided with a linear guide rail, the lifting sliding table is arranged on the linear guide rail and is connected with a workpiece taking arm through an adjusting screw rod, and the front end of the workpiece taking arm is provided with a workpiece taking hopper; the lifting hydraulic oil cylinder is connected with the lifting sliding table and controls the lifting stroke of the lifting sliding table; the lifting sliding table is provided with a hydraulic motor, and the hydraulic motor is connected with the linear guide rail through a gear rack to control the traveling stroke of the lifting sliding table.

The low-pressure casting machine pickup trolley is provided with a lifting sliding table, the pickup hopper is driven to lift by the pickup arm, the pickup hopper is made to fall along with a finished product, the pickup hopper is made to keep contact with the finished product, the finished product is prevented from falling into the pickup hopper at an excessive speed, and meanwhile, a sufficient distance is kept between the pickup hopper and an upper die when the pickup hopper is moved away from the lower part of the upper die.

However, in the actual use process, the stretching speed of the piston rod of the lifting hydraulic oil cylinder and the ejecting speed of the finished product are difficult to keep synchronous, and if the stretching speed of the piston rod of the lifting hydraulic oil cylinder is slow, the finished product can still be extruded and deformed, and the stability is poor. In addition, because the working environment temperature of the lifting hydraulic oil cylinder is higher, certain potential safety hazards also exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can reduce the low pressure casting machine that the work piece collided with the damage, it has the finished product that bearing and last mould break away from steadily and shifts out the finished product, reduces colliding with that the finished product received, carries out the effect of better protection to the finished product.

The above object of the present invention is achieved by the following technical solutions:

a low-pressure casting machine capable of reducing collision damage of workpieces comprises an upper template, an upper mold, an ejection cylinder and a material receiving trolley, wherein the upper mold is positioned below the upper template, the upper mold is connected with the upper template through a vertical mounting rod, the ejection cylinder is erected on the upper template, the low-pressure casting machine further comprises a receiving plate arranged above the material receiving trolley, the receiving plate is arranged along the horizontal direction, a vertical supporting spring is arranged between the receiving plate and the material receiving trolley for connection, a transmission rod is arranged on the receiving plate and positioned on one side of the receiving plate away from the upper mold, the top end of the transmission rod is positioned above the upper mold and bent towards the upper mold, an ejector plate is arranged below the upper template and slides on the upper template along the vertical direction, the upper surface of the ejector plate is connected with a piston rod of the ejection cylinder, the lower surface of the ejector plate abuts against the top end of the transmission rod, and is, the ejector pins penetrate through the upper die in a sliding mode along the vertical direction.

By adopting the technical scheme, after the upper die plate moves the upper die and the finished product integrally upwards, the material receiving trolley is transferred to the lower part of the upper die, the bearing plate is in contact with the bottom end of the finished product under the support of the supporting spring, the ejector cylinder drives the ejector plate to downwards move, the finished product is ejected out of the cavity of the upper die through the ejector pin, meanwhile, the ejector plate overcomes the elasticity of the supporting spring, the bearing plate is pressed down through the transmission rod, so that the bearing plate and the finished product synchronously move and are always in contact, the finished product separated from the upper die can be stably supported and transferred out, the collision on the finished product is reduced, and the finished product is well protected.

The present invention may be further configured in a preferred embodiment as: the upper surface of the bearing plate is provided with a boss, and the boss is opposite to the inward concave part of the lower surface of the finished product.

By adopting the technical scheme, the inward concave part on the lower surface of the finished product is placed on the boss, so that the side turning is not easy to happen in the transferring process.

The present invention may be further configured in a preferred embodiment as: and a heat insulation felt is paved on the upper surface of the bearing plate.

Through adopting above-mentioned technical scheme, the finished product temperature is higher when just drawing of patterns, sets up thermal-insulated felt can separation heat transfer, avoids accepting the board and is out of shape after being heated.

The present invention may be further configured in a preferred embodiment as: the transmission rod top rotating frame is provided with a roller, the transmission rod is abutted against the ejector plate through the roller, and the axis of the roller is horizontal and is vertical to the sliding direction of the material receiving trolley.

Through adopting above-mentioned technical scheme, the transfer line top offsets with the thimble board through the gyro wheel, can reduce the friction that receives when connecing the material dolly to remove from last mould below, reduces the wearing and tearing to the thimble board simultaneously.

The present invention may be further configured in a preferred embodiment as: connect the material dolly to be equipped with the locking seat, be equipped with the spring pin on the locking seat, the spring pin sets up along the horizontal direction, and the upper surface that the spring pin orientation was accepted board one end is equipped with the guide inclined plane, it has seted up the pinhole to correspond on the lateral wall of accepting the board.

Through adopting above-mentioned technical scheme, accept the board and move down to the finished product and lie in the mould below back completely, pinhole and elastic pin align, and the elastic pin penetrates the pinhole, will accept the board and pin, even if the transfer line breaks away from with the thimble board at the in-process that the pay-off dolly removed from last mould below, it can not kick-back to accept the board yet.

The present invention may be further configured in a preferred embodiment as: the connecting rod is arranged at one end, back to the bearing plate, of the elastic pin, the axis of the connecting rod is parallel to or coincided with the axis of the elastic pin, and the connecting rod penetrates through the locking seat in a sliding mode.

By adopting the technical scheme, after the finished product is taken away from the bearing plate by a worker, the connecting rod is pulled, the elastic pin is separated from the pin hole, and the bearing plate can be released.

The present invention may be further configured in a preferred embodiment as: connect the material dolly to be equipped with two piece at least guide bars, the guide bar sets up along vertical direction, and the guide bar slides to wear to locate on accepting the board, the supporting spring cover is established on the guide bar that corresponds.

Through adopting above-mentioned technical scheme, the guide bar passes and accepts the board, makes and accepts the board and keeps steady in lift process, avoids supporting spring lateral bending.

The present invention may be further configured in a preferred embodiment as: and a limiting plate is arranged at the top end of the guide rod.

By adopting the technical scheme, the bearing plate can not be completely separated from the guide rod when reset by the limit of the limit plate.

To sum up, the utility model discloses a following at least one useful technological effect:

1. stably supporting the finished product separated from the upper die and transferring the finished product out, reducing the collision on the finished product and better protecting the finished product;

2. through setting up the elastic pin, can will accept the board and pin after accepting the board and drop, avoid accepting the board and kick-back after connecting rod and thimble board break away from.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic view showing the connection between the carrying plate and the feeding cart in the embodiment;

fig. 3 is a sectional view of the lock base in the embodiment.

In the figure, 1, an upper template; 2. an upper die; 3. a material receiving trolley; 4. a bearing plate; 5. a work table; 6. a lower die; 7. a slipping bracket; 11. a material ejection cylinder; 12. mounting a rod; 13. an ejector plate; 14. a thimble; 15. a guide post; 31. a support spring; 32. a locking seat; 33. an elastic pin; 34. a guide ramp; 35. a connecting rod; 36. a guide bar; 37. a limiting plate; 41. a transmission rod; 42. a boss; 43. a heat insulation felt; 44. a roller; 45. a pin hole; 51. a column; 52. a support plate; 53. a lift cylinder; 54. lifting a pull rod; 55. a top plate.

Detailed Description

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

Example (b):

referring to fig. 1, for the utility model discloses a can reduce low pressure casting machine that work piece collided with damage, including workstation 5, workstation 5 is put on the shelf and is equipped with bed die 6, four stands 51 and a support 7 that slides. The upright post 51 is arranged along the vertical direction, an upper template 1 is arranged on an upper sliding frame, an upper die 2 is arranged below the upper template 1, and the upper die 2 is right opposite to the lower die 6. The sliding frame is provided with a material receiving trolley 3 on the sliding support 7, and one end of the material receiving trolley 3 is provided with a receiving plate 4 for receiving finished products.

Referring to fig. 1, the upper template 1 is arranged along the horizontal direction, and four columns 51 respectively penetrate through four top corners of the upper template 1, so that the upper template 1 is limited and guided in the lifting process.

Referring to fig. 1, a supporting plate 52 is bolted to the top ends of four upright posts 51, a lifting cylinder 53 is bolted to the supporting plate 52, and four lifting rods 54 are slidably inserted through the supporting plate 52. The piston rod of the lift cylinder 53 extends vertically upward and is connected to a lifting rod 54 through a top plate 55. The lifting rod 54 is arranged along the vertical direction, the top end of the lifting rod 54 is bolted with the top plate 55, and the bottom end is bolted with the upper template 1.

When the piston rod of the lifting cylinder 53 extends, the top plate 55 is jacked up, the upper template 1 is lifted upwards through the lifting rod 54, and the upper template 1 is driven to lift.

Referring to fig. 1, six mounting rods 12 are bolted to the lower surface of an upper die plate 1, the mounting rods 12 are arranged in the vertical direction, and the bottom ends of the mounting rods 12 are bolted to an upper die 2. Under the traction of the mounting rod 12, the upper die 2 rises along with the upper die plate 1, and the finished product is driven to be separated from the lower die 6.

Referring to fig. 1, four guide posts 15 are bolted to the lower surface of the upper die plate 1, and the guide posts 15 are arranged in the vertical direction. In addition, a horizontal ejector plate 13 is arranged between the upper template 1 and the upper die 2, and guide posts 15 are slidably arranged on the ejector plate 13.

Referring to fig. 1, a material ejecting cylinder 11 is erected on an upper template 1, and a piston rod of the material ejecting cylinder 11 extends vertically downwards and is bolted with an ejector plate 13. A plurality of ejector pins 14 are erected on the lower surface of the ejector plate 13, and the ejector pins 14 are arranged in the vertical direction. The thimble 14 is slidably inserted through the upper mold 2 and abuts against the upper surface of the finished product.

The piston rod of the ejector cylinder 11 extends out to drive the ejector plate 13 to press down, and the finished product can be ejected out of the cavity of the upper die 2 through the ejector 14.

Referring to fig. 1, the sliding direction of the material receiving trolley 3 is horizontal, and after the upper die 2 rises along with the upper die plate 1, the horizontal receiving plate 4 slides to the lower part of the upper die 2 along with the material receiving trolley 3 and contacts with the bottom end of a finished product.

Referring to fig. 2, four guide rods 36 are bolted to the upper surface of the material receiving trolley 3, and the guide rods 36 are arranged in the vertical direction and slidably penetrate through four top corners of the receiving plate 4. Further, the guide rod 36 is fitted with the support spring 31, and a stopper plate 37 is bolted to the tip end surface of the guide rod 36.

Referring to fig. 2, the support spring 31 is always in a compressed state, and the bottom end of the support spring 31 abuts against the receiving cart 3 and the top end abuts against the receiving plate 4 to lift up the receiving plate 4.

Referring to fig. 1 and 2, a driving rod 41 is welded on one side of the bearing plate 4 far away from the upper die 2, the driving rod 41 is L-shaped, the bottom end of the vertical section of the driving rod is connected with the bearing plate 4, and the horizontal section of the driving rod is located on one side of the top end of the vertical section facing the upper die 2. In addition, the upper surface rotating frame of the horizontal section of the transmission rod 41 is provided with a roller 44, and the axis of the roller 44 is horizontal and is vertical to the sliding direction of the material receiving trolley 3.

When the receiving plate 4 moves below the upper mold 2 along with the receiving trolley 3, the transmission rod 41 also moves below the ejector plate 13 and abuts against the ejector plate 13 through the roller 44. When the ejector plate 13 ejects the product from the cavity of the upper mold 2 by the ejector pins 14, the carrier plate 4 is also pressed down by the transmission rod 41. The bearing plate 4 moves synchronously with the finished product and is always in contact with the finished product.

Referring to fig. 2, a heat insulating felt 43 made of asbestos is laid on the upper surface of the receiving plate 4, and a plurality of bosses 42 are welded thereto. The boss 42 is arranged on the heat insulation felt 43 in a penetrating way and is opposite to the concave part on the lower surface of the finished product, so that the finished product is more stably placed on the bearing plate 4.

Referring to fig. 2 and 3, a locking seat 32 is welded on the upper surface of the material receiving trolley 3, the locking seat 32 is opposite to the side wall of the bearing plate 4 opposite to the upper mold 2 (see fig. 1), and a counter bore is formed in the side of the locking seat 32 facing the bearing plate 4. The axis of the counter bore is directed perpendicularly to the side of the receiving plate 4, in which the resilient pin 33 is slidingly arranged, and correspondingly, the side of the receiving plate 4 is provided with a pin hole 45.

Referring to fig. 3, the upper surface of the elastic pin 33 facing one end of the receiving plate 4 is chamfered to form a guide slope 34, which is paired with the edge of the receiving plate 4. When the bearing plate 4 is pressed down, it contacts the guide ramp 34 on the spring pin 33, pressing the spring pin 33 back into the counterbore until the pin hole 45 is aligned with the spring pin 33. The elastic pin 33 is automatically ejected to lock the bearing plate 4.

Referring to fig. 3, a through hole is formed in the bottom surface of the counter bore, a connecting rod 35 is slidably inserted in the through hole, and the connecting rod 35 is welded and fixed with the elastic pin 33. The worker pulls the connecting rod 35, so that the elastic pin 33 retracts into the counter bore, and the bearing plate 4 is released.

The implementation principle of the embodiment is as follows:

after the upper die plate 1 drives the upper die 2 and the finished product to move upwards integrally, the material receiving trolley 3 is transferred to the position below the upper die 2, and the material receiving plate 4 is in contact with the bottom end of the finished product under the support of the support spring 31. The ejector cylinder 11 drives the ejector plate 13 to move downwards, and a finished product is ejected out of the cavity of the upper die 2 through the ejector 14. At the same time, the ejector plate 13 presses down the receiving plate 4 via the transmission rod 41 against the elastic force of the support spring 31. The bearing plate 4 moves synchronously with the finished product and keeps contact all the time, so that the finished product separated from the upper die 2 can be stably supported and transferred out, the collision on the finished product is reduced, and the finished product is well protected.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a can reduce work piece low pressure casting machine that collides with damage, includes cope match-plate pattern (1), goes up mould (2), liftout cylinder (11) and connects material dolly (3), it is located cope match-plate pattern (1) below to go up mould (2), and it links to each other with cope match-plate pattern (1) through vertical installation pole (12) to go up mould (2), it erects on cope match-plate pattern (1) its characterized in that to push up material cylinder (11): the material receiving trolley is characterized by further comprising a receiving plate (4) arranged above the material receiving trolley (3), the receiving plate (4) is arranged along the horizontal direction, a vertical supporting spring (31) is arranged between the receiving plate (4) and the material receiving trolley (3) to be connected, a transmission rod (41) is arranged on the receiving plate (4), the transmission rod (41) is positioned on one side of the bearing plate (4) far away from the upper die (2), the top end of the transmission rod (41) is positioned above the upper die (2), and is bent towards the upper die (2), an ejector plate (13) is arranged below the upper die plate (1), the ejector plate (13) is arranged on the upper template (1) in a sliding manner along the vertical direction, the upper surface of the ejector plate (13) is connected with a piston rod of the ejection cylinder (11), the lower surface of the ejector plate (13) is propped against the top end of the transmission rod (41), and the ejector pin (14) is arranged, and the ejector pin (14) penetrates through the upper die (2) in a sliding manner along the vertical direction.

2. The low-pressure casting machine capable of reducing collision damage of workpieces as claimed in claim 1, is characterized in that: the upper surface of the bearing plate (4) is provided with a boss (42), and the boss (42) is opposite to the concave part on the lower surface of the finished product.

3. The low-pressure casting machine capable of reducing collision damage of workpieces as claimed in claim 1, is characterized in that: and a heat insulation felt (43) is laid on the upper surface of the bearing plate (4).

4. The low-pressure casting machine capable of reducing collision damage of workpieces as claimed in claim 1, is characterized in that: the rotating frame at the top end of the transmission rod (41) is provided with a roller (44), the transmission rod (41) is abutted against the ejector plate (13) through the roller (44), and the axis of the roller (44) is horizontal and is vertical to the sliding direction of the material receiving trolley (3).

5. The low-pressure casting machine capable of reducing collision damage of workpieces as claimed in claim 1, is characterized in that: connect material to be equipped with locking seat (32) on dolly (3), be equipped with spring pin (33) on locking seat (32), spring pin (33) set up along the horizontal direction, and spring pin (33) are equipped with guide inclined plane (34) towards the upper surface of accepting board (4) one end, pinhole (45) have been seted up to correspondence on the lateral wall of accepting board (4).

6. The low-pressure casting machine capable of reducing collision damage of workpieces as claimed in claim 5, characterized in that: one end, back to the bearing plate (4), of the elastic pin (33) is provided with a connecting rod (35), the axis of the connecting rod (35) is parallel to or coincided with the axis of the elastic pin (33), and the connecting rod (35) penetrates through the locking seat (32) in a sliding mode.

7. The low-pressure casting machine capable of reducing collision damage of workpieces as claimed in claim 1, is characterized in that: connect material dolly (3) to be equipped with two piece at least guide bar (36), guide bar (36) set up along vertical direction, and guide bar (36) slide to wear to locate on accepting board (4), supporting spring (31) cover is established on corresponding guide bar (36).

8. The low-pressure casting machine capable of reducing collision damage of workpieces according to claim 7, characterized in that: and a limiting plate (37) is arranged at the top end of the guide rod (36).

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