CN211191948U

CN211191948U - Gravity casting device is used in bicycle rim production

Info

Publication number: CN211191948U
Application number: CN201922005714.2U
Authority: CN
Inventors: 张倩; 张改燕
Original assignee: Tianjin Dacheng Weiye Technology Co ltd
Current assignee: Tianjin Dacheng Weiye Technology Co ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-08-07
Anticipated expiration: 2029-11-20

Abstract

The utility model discloses a gravity casting device is used in production of bicycle rim, including gravity casting device body, gravity casting device body includes the base, the top fixed mounting of base has two backup pads, the same roof of top fixedly connected with of two backup pads, and the top thread fastening of roof has the pneumatic cylinder, and the output shaft bottom of pneumatic cylinder extends to the below and the fixed mounting of roof has last mould, and the top fixed mounting of base has and goes up mould matched with lower mould, establish to the opening at the top of lower mould, the equal fixed mounting in both sides of going up the mould has first movable plate, and the top movable contact of first movable plate has the second movable plate that the slip cover was established in the backup pad that corresponds. The utility model relates to a rationally, convenient operation can drive the die casting upwards and shift out automatically when being convenient for go up the mould return after the die-casting shaping, avoids artifical prize-out product, and labour saving and time saving improves work efficiency, satisfies the user demand, is favorable to the use.

Description

Gravity casting device is used in bicycle rim production

Technical Field

The utility model relates to a gravity casting equipment technical field especially relates to a gravity casting device is used in bicycle rim production.

Background

The gravity casting refers to a process method for pouring molten metal into a metal cavity under the action of earth gravity to obtain a casting, and the generalized gravity casting comprises sand casting, metal mold casting, investment casting, lost foam casting, clay mold casting and the like; the narrow gravity casting refers to metal mold casting, the gravity casting machine generally refers to a machine for realizing opening, closing and taking of metal mold gravity casting, a gravity casting device is also used for a bicycle rim during production, the bicycle rim is formed through the gravity casting device, and after retrieval, an authorized notice number: CN205380255U discloses a gravity casting device, which comprises a frame, a fixed seat fixedly connected with the frame and a casting assembly, wherein the casting assembly comprises a die which is arranged on the fixed seat and consists of a lower die and an upper die, an oil cylinder assembly and a vertical guide shaft, the oil cylinder assembly comprises an oil cylinder mounting seat connected with the fixed seat, an oil cylinder fixed on the oil cylinder mounting seat, a piston arranged in the oil cylinder, a control device used for controlling the piston to move up and down and a moving part, the piston is connected with the moving part through a connecting rod, the moving part is sleeved outside the vertical guide shaft and is fixedly connected with the upper die, the top of the vertical guide shaft is fixedly connected with the oil cylinder mounting seat, the bottom of the vertical guide shaft is fixedly connected with the fixed seat, the vertical guide shafts are two and are arranged on one side where the oil cylinder mounting seat is connected with the fixed seat, the gravity casting device can make, the casting and the mold filling are easy, and the defects of air holes, slag inclusion and the like are not easy to generate.

But above-mentioned patent still has some not enoughly, and the automatic fashioned product that shifts out when going up the mould and going back to rise after the die-casting shaping not convenient to, after the die-casting shaping, needs the manual work to prize out the product, causes the product easily at the in-process that the manual work was prized and is scraped colored phenomenon, wastes time and energy, and production efficiency is low, can not satisfy the user demand, therefore we have proposed a bicycle rim production and used gravity casting device for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a gravity casting device for producing a bicycle rim.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a gravity casting device for producing a bicycle rim comprises a gravity casting device body, wherein the gravity casting device body comprises a base, two supporting plates are fixedly mounted at the top of the base, the tops of the two supporting plates are fixedly connected with a same top plate, a hydraulic cylinder is fixedly arranged on the top of the top plate in a threaded manner, the bottom end of an output shaft of the hydraulic cylinder extends to the lower side of the top plate and is fixedly provided with an upper die, a lower die matched with the upper die is fixedly mounted at the top of the base, the top of the lower die is provided with an opening, first moving plates are fixedly mounted on the two sides of the upper die and are slidably sleeved on the corresponding supporting plates, a second moving plate slidably sleeved on the corresponding supporting plate is movably contacted with the top of the first moving plate, a same first spring is fixedly connected between the top of the second moving plate and the bottom, two positioning rods are fixedly connected between the inner wall of the top part and the inner wall of the bottom part of the mounting hole, the same third moving plate is sleeved on the two positioning rods in a sliding manner, first through holes are formed in four corners of the inner wall of the bottom part of the lower die, a push block is sleeved in the first through holes in a sealing and movable manner, a moving rod is fixedly installed at the bottom part of the push block, the bottom end of the moving rod extends into the mounting hole and is fixedly connected with the top part of the third moving plate, two second springs are fixedly connected between the top part of the third moving plate and the inner wall of the top part of the mounting hole, the second springs are movably sleeved on the corresponding positioning rods, a cross rod is arranged in the mounting hole and is fixedly sleeved on the two positioning rods, two rectangular blocks are slidably installed on the inner wall of the bottom part of the mounting hole, the rectangular blocks are slidably sleeved on the, two connecting rod symmetries set up, the one end of the equal fixedly connected with stay cord in one side that two rectangular blocks are close to each other, one side that two rectangular blocks are close to each other all is equipped with two and rotates the first fixed pulley of installing on the mounting hole lateral wall, rotate on the lateral wall of mounting hole and install two second fixed pulleys, two rectangular blocks are located between two second fixed pulleys, the other end of stay cord is walked around the top of the first fixed pulley that lies in the top in two first fixed pulleys that correspond in proper order, the bottom of another first fixed pulley and second fixed pulley keep away from one side of rectangular block and with bottom one side fixed connection of second movable plate.

Preferably, one side of the rectangular block is provided with a first rectangular hole, and the side wall of the first rectangular hole is in sliding connection with the outer side of the cross rod.

Preferably, two second rectangular holes are formed in the top of the third moving plate, and the side walls of the second rectangular holes are in sliding connection with the outer sides of the corresponding positioning rods.

Preferably, two first circular holes are formed in the top of the cross rod, and the side walls of the first circular holes are in movable contact with the outer sides of the corresponding pull ropes.

Preferably, two second circular holes are formed in the inner wall of the top of the mounting hole, and the side walls of the second circular holes are in movable contact with the outer sides of the corresponding pull ropes.

Preferably, the pushing block is fixedly sleeved with a sealing ring, and the outer side of the sealing ring is in movable contact with the side wall of the corresponding first through hole.

Compared with the prior art, the beneficial effects of the utility model are that:

the hydraulic cylinder is started in a forward direction by matching the base, the mounting holes, the support plates, the second movable plates, the first springs, the upper die, the lower die, the first through holes, the push blocks, the movable rods, the third movable plates, the positioning rods, the second springs, the cross rods, the rectangular blocks, the connecting rods and the pull ropes with the first movable plates, the upper die is driven by the output end of the hydraulic cylinder to move downwards to match with the lower die for die casting, after molding, the hydraulic cylinder is started in a reverse direction to drive the upper die to move upwards, the upper die drives the two first movable plates to move upwards and respectively drive the corresponding second movable plates to slide up and down on the corresponding support plates and compress the corresponding first springs, and the rectangular blocks are driven by the second movable plates to slide on the cross rods through the corresponding pull ropes and extrude the connecting rods, the connecting rods are driven by the extrusion force to move and rotate, the two connecting rods simultaneously extrude the same third movable plate to slide upwards on the two positioning rods and compress the two second springs, and the third movable plate moves upwards to drive the corresponding push blocks to move upwards through the four moving rods respectively so as to push out a product formed in the lower die.

The utility model relates to a rationally, convenient operation can drive the die casting upwards and shift out automatically when being convenient for go up the mould return after the die-casting shaping, avoids artifical prize-out product, and labour saving and time saving improves work efficiency, satisfies the user demand, is favorable to the use.

Drawings

FIG. 1 is a schematic structural view of a gravity casting apparatus for producing a bicycle rim according to the present invention;

fig. 2 is the utility model provides a part A of gravity casting device for producing bicycle rim's a part schematic structure.

In the figure: the device comprises a base 1, a mounting hole 2, a supporting plate 3, a second moving plate 4, a first spring 5, an upper die 6, a lower die 7, a first through hole 8, a pushing block 9, a moving rod 10, a third moving plate 11, a positioning rod 12, a second spring 13, a cross rod 14, a rectangular block 15, a connecting rod 16, a pull rope 17 and a first moving plate 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a gravity casting device for producing a bicycle rim comprises a gravity casting device body, the gravity casting device body comprises a base 1, two support plates 3 are fixedly installed on the top of the base 1, the tops of the two support plates 3 are fixedly connected with a same top plate, a hydraulic cylinder is fixedly arranged on the top of the top plate through threads, the bottom end of an output shaft of the hydraulic cylinder extends to the lower side of the top plate and is fixedly provided with an upper die 6, a lower die 7 matched with the upper die 6 is fixedly installed on the top of the base 1, the top of the lower die 7 is provided with an opening, first movable plates 18 are fixedly installed on the two sides of the upper die 6, the first movable plates 18 are slidably sleeved on the corresponding support plates 3, the tops of the first movable plates 18 are movably contacted with second movable plates 4 slidably sleeved on the corresponding support plates 3, and a same first spring 5, one side of the base 1 is provided with a mounting hole 2, two positioning rods 12 are fixedly connected between the top inner wall and the bottom inner wall of the mounting hole 2, a same third moving plate 11 is slidably sleeved on the two positioning rods 12, four corners of the bottom inner wall of the lower die 7 are respectively provided with a first through hole 8, a push block 9 is hermetically and movably sleeved in the first through hole 8, a moving rod 10 is fixedly installed at the bottom of the push block 9, the bottom end of the moving rod 10 extends into the mounting hole 2 and is fixedly connected with the top of the third moving plate 11, two second springs 13 are fixedly connected between the top of the third moving plate 11 and the top inner wall of the mounting hole 2, the second springs 13 are movably sleeved on the corresponding positioning rods 12, a cross rod 14 is arranged in the mounting hole 2, the cross rod 14 is fixedly sleeved on the two positioning rods 12, two rectangular blocks 15 are slidably installed on the bottom inner wall of the mounting hole 2, the two positioning rods 12 are positioned between the two rectangular blocks 15, the connecting rods 16 which are obliquely arranged are hinged between the top of the rectangular blocks 15 and the bottom of the third movable plate 11, the two connecting rods 16 are symmetrically arranged, one side of the two rectangular blocks 15 which are close to each other is fixedly connected with one end of a stay cord 17, one side of the two rectangular blocks 15 which are close to each other is provided with two first fixed pulleys which are rotatably arranged on the side wall of the mounting hole 2, the side wall of the mounting hole 2 is rotatably provided with two second fixed pulleys, the two rectangular blocks 15 are positioned between the two second fixed pulleys, the other end of the stay cord 17 sequentially bypasses the top of one first fixed pulley which is positioned above the corresponding two first fixed pulleys, the bottom of the other first fixed pulley and one side of the second fixed pulley which is far away from the rectangular block 15 and is fixedly connected with one side of the bottom of the second movable plate 4, convenient operation, it can upwards shift out to be convenient for go up mould 6 when rising after the die-casting shaping and drive the die casting automatically, avoids the manual work to prize out the product, and labour saving and time saving improves work efficiency, satisfies the user demand, is favorable to the use.

In the utility model, one side of the rectangular block 15 is provided with a first rectangular hole, the side wall of the first rectangular hole is connected with the outer side of the cross rod 14 in a sliding way, the top of the third moving plate 11 is provided with two second rectangular holes, the side wall of the second rectangular hole is connected with the outer side of the corresponding positioning rod 12 in a sliding way, the top of the cross rod 14 is provided with two first circular holes, the side wall of the first circular hole is in movable contact with the outer side of the corresponding stay cord 17, the inner wall of the top of the mounting hole 2 is provided with two second circular holes, the side wall of the second circular hole is in movable contact with the outer side of the corresponding stay cord 17, the push block 9 is fixedly sleeved with a sealing ring, the outer side of the sealing ring is in movable contact with the side wall of the corresponding first through hole 8, the utility model has reasonable design and convenient operation, and can automatically drive the die casting to move, time and labor are saved, the working efficiency is improved, the use requirement is met, and the use is facilitated.

The working principle is as follows: when the device is used, the hydraulic cylinder is started in a forward direction, the output end of the hydraulic cylinder drives the upper die 6 to move downwards, the upper die 6 drives the two first moving plates 18 to respectively slide on the corresponding support plates 3, the upper die 6 is matched with the lower die 7 to perform die casting when moving downwards, after the device is formed, the hydraulic cylinder is started in a reverse direction, the hydraulic cylinder drives the upper die 6 to move upwards, the upper die 6 drives the two first moving plates 18 to move upwards and respectively extrude the corresponding second moving plates 4, the extruding force drives the second moving plates 4 to slide up and down on the corresponding support plates 3 and compress the corresponding first springs 5, the second moving plates 4 move upwards and simultaneously drive the corresponding pull ropes 17 to be sequentially arranged on one side of the second fixed pulley, the bottom of one first fixed pulley positioned below the two first fixed pulleys and the top of the other first fixed pulley slide, the pull rope 17 pulls the corresponding rectangular block 15 to slide on the cross rod 14, the rectangular block 15 pushes the corresponding connecting rod 16 while moving, the pushing force enables the connecting rod 16 to move and rotate, the two connecting rods 16 simultaneously push the same third moving plate 11 to slide upwards on the two positioning rods 12, the third moving plate 11 compresses the two second springs 13 while moving upwards, the third moving plate 11 moves upwards to drive the four moving rods 10 to move upwards, the moving rods 10 drive the corresponding push blocks 9 to move upwards, the push blocks 9 move upwards to push out products formed in the lower die 7, and similarly, when the hydraulic cylinder is started forwards again, the two first moving plates 18 move downwards, and the first springs 5 in the compressed state reset, the elasticity of the first spring 5 drives the corresponding second movable plate 4 to move downwards and gradually releases the pulling force on the pull rope 17, at the moment, the second springs 13 in a compressed state reset, the elasticity of the two second springs 13 simultaneously drives the third movable plate 11 to move downwards, the third movable plate 11 drives the four movable rods 10 to move downwards while moving downwards, the movable rods 10 drive the corresponding push blocks 9 to move and reset, so that the die casting piece can be automatically driven to move upwards when the upper die 6 is lifted after die casting, and time and labor are saved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The gravity casting device for producing the bicycle rim comprises a gravity casting device body, wherein the gravity casting device body comprises a base (1), two supporting plates (3) are fixedly mounted at the top of the base (1), the top of the two supporting plates (3) is fixedly connected with the same top plate, a hydraulic cylinder is fixedly arranged at the top of the top plate in a threaded manner, an upper die (6) is fixedly mounted at the bottom end of an output shaft of the hydraulic cylinder, the lower die (7) matched with the upper die (6) is fixedly mounted at the top of the base (1), the gravity casting device is characterized in that the top of the lower die (7) is provided with an opening, first movable plates (18) are fixedly mounted on two sides of the upper die (6), the first movable plates (18) are slidably sleeved on the corresponding supporting plates (3), and the top of the first movable plates (18) is in movable contact with second movable plates (4) slidably sleeved on the corresponding, the top of the second moving plate (4) and the bottom of the top plate are fixedly connected with a same first spring (5), one side of the base (1) is provided with a mounting hole (2), two positioning rods (12) are fixedly connected between the inner wall of the top of the mounting hole (2) and the inner wall of the bottom, a same third moving plate (11) is slidably sleeved on the two positioning rods (12), four corners of the inner wall of the bottom of the lower die (7) are respectively provided with a first through hole (8), a push block (9) is movably sleeved in the first through hole (8) in a sealing manner, a moving rod (10) is fixedly installed at the bottom of the push block (9), the bottom end of the moving rod (10) extends into the mounting hole (2) and is fixedly connected with the top of the third moving plate (11), two second springs (13) are fixedly connected between the top of the third moving plate (11) and the inner wall of the top of the mounting hole (2), and the second springs (13, a cross rod (14) is arranged in the mounting hole (2), the cross rod (14) is fixedly sleeved on the two positioning rods (12), two rectangular blocks (15) are slidably installed on the inner wall of the bottom of the mounting hole (2), the rectangular blocks (15) are slidably sleeved on the cross rod (14), the two positioning rods (12) are positioned between the two rectangular blocks (15), a connecting rod (16) which is obliquely arranged is hinged between the top of each rectangular block (15) and the bottom of the third movable plate (11), the two connecting rods (16) are symmetrically arranged, one side, close to each other, of each rectangular block (15) is fixedly connected with one end of a pull rope (17), one side, close to each other, of each rectangular block (15) is provided with two first fixed pulleys rotatably installed on the side wall of the mounting hole (2), the side wall of the mounting hole (2) is rotatably installed with two second fixed pulleys, and the two rectangular blocks (15) are positioned between the two second, the other end of the pull rope (17) sequentially rounds the top of one first fixed pulley positioned above the two corresponding first fixed pulleys, the bottom of the other first fixed pulley and one side of the second fixed pulley, which is far away from the rectangular block (15), and is fixedly connected with one side of the bottom of the second moving plate (4).

2. The gravity casting device for producing the bicycle rim as claimed in claim 1, wherein a first rectangular hole is formed in one side of the rectangular block (15), and a side wall of the first rectangular hole is slidably connected with the outer side of the cross bar (14).

3. The gravity casting device for producing the bicycle rim as claimed in claim 1, wherein two second rectangular holes are formed in the top of the third moving plate (11), and the side walls of the second rectangular holes are slidably connected with the outer sides of the corresponding positioning rods (12).

4. The gravity casting device for producing the bicycle rim as claimed in claim 1, wherein two first circular holes are formed in the top of the cross bar (14), and the side walls of the first circular holes are in movable contact with the outer sides of the corresponding pull ropes (17).

5. The gravity casting device for producing the bicycle rim as claimed in claim 1, wherein two second circular holes are formed in the inner wall of the top of the mounting hole (2), and the side walls of the second circular holes are in movable contact with the outer sides of the corresponding pull ropes (17).

6. The gravity casting device for producing bicycle rims as claimed in claim 1, wherein said push blocks (9) are fixed with sealing rings, the outer sides of which are movably contacted with the side walls of the corresponding first through holes (8).