CN216176451U

CN216176451U - Core shooting machine with conveniently-disassembled mold

Info

Publication number: CN216176451U
Application number: CN202122720837.1U
Authority: CN
Inventors: 王能肖; 李辉
Original assignee: Taizhou Yulong Machinery Co ltd
Current assignee: Taizhou Yulong Machinery Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-04-05
Anticipated expiration: 2031-11-05

Abstract

The utility model discloses a core shooting machine with a mold convenient to disassemble and assemble, which comprises an outer machine body, a control system, a sand box, an upper mold base, a lower mold base, a lifting device and a sand shooting device, wherein the control system controls the lifting device and the sand shooting device to work, and the sand box is connected with the sand shooting device; the lifting device is connected with the upper die base; the lower die base is positioned on the outer machine body; the lifting device has the structure that: the lifting device comprises a lifting oil cylinder, a lifting rod, two positioning guide rods and four auxiliary guide rods, wherein one end of the lifting rod is connected with the lifting oil cylinder, and the other end of the lifting rod is connected with the middle part of an upper die base so as to drive the lifting rod to lift; the rear sides of the upper die seat and the lower die seat are provided with fixed seats opposite in position, and the positioning guide rod penetrates through the fixed seat of the upper die seat and the end part of the positioning guide rod is positioned in the fixed seat of the lower die seat; the lower end of the auxiliary guide rod is fixedly connected with the upper die base, and the upper end of the auxiliary guide rod is inserted in the positioning hole of the outer machine body and can be lifted up and down in the positioning hole. The advantages are that: the utility model can facilitate the disassembly and assembly of the die.

Description

Core shooting machine with conveniently-disassembled mold

Technical Field

The utility model belongs to the technical field of core shooters, and particularly relates to a core shooter with a die convenient to disassemble and assemble.

Background

At present, a core shooter is also called a 'sand shooter' or a 'sand shooter' which is precoated sand molding core making equipment for making cores by adopting precoated sand through a hot core box process, and is widely applied to the manufacture of large-batch small casting cores with higher appearance quality requirements. The dies on the existing core shooter are controlled to be opened and closed through a hydraulic oil cylinder, and in order to prevent deviation during lifting, the die seats are all provided with positioning guide rods, the number of the existing guide rods is generally four, and the existing guide rods are respectively positioned in the front and the back of the die seats and positioned on a machine body (the positioning guide rods cannot move), so that the die seats can be positioned in four directions of front, back, left and right; however, in the structure, because the two positioning guide rods at the front end are positioned in front of the mold, the mold is inconvenient to replace; there is a need for improvement.

Disclosure of Invention

The utility model aims to provide the core shooter with the die convenient to disassemble and assemble, which has the characteristic of being convenient for disassembling and assembling the die, aiming at the defects in the prior art.

In order to achieve the purpose, the utility model adopts the technical scheme that: a core shooting machine with a mold convenient to disassemble and assemble comprises an outer machine body, wherein a control system, a sand box, an upper mold base, a lower mold base, a lifting device and a sand shooting device are arranged in the outer machine body, the control system controls the lifting device and the sand shooting device to work, and the sand box is connected with the sand shooting device to convey sand grains to the sand shooting device; the lifting device is connected with the upper die base to control the upper die base to move up and down; the lower die base is fixedly arranged on a workbench of the outer machine body; the lifting device has the structure that: the lifting device comprises a lifting oil cylinder, a lifting rod, two positioning guide rods and four auxiliary guide rods, wherein one end of the lifting rod is connected with the lifting oil cylinder, and the other end of the lifting rod is connected with the middle part of an upper die base so as to drive the lifting rod to lift; the rear sides of the upper die seat and the lower die seat are provided with fixed seats opposite in position, and the positioning guide rod penetrates through the fixed seat of the upper die seat and the end part of the positioning guide rod is positioned in the fixed seat of the lower die seat; the lower end of the auxiliary guide rod is fixedly connected with the upper die base, and the upper end of the auxiliary guide rod is inserted in the positioning hole of the outer machine body and can be lifted up and down in the positioning hole.

Furthermore, two adjacent auxiliary guide rods are connected through a linkage block.

The gravity sensor is positioned in the sand box and matched with the sand pump to work, and is used for sensing the weight of a sand pile in the sand box; the sand pump is positioned on the sand conveying barrel and is connected with a sand leakage opening at the bottom of the sand conveying barrel, one end of the sand conveying pipe is connected with the sand pump, and the other end of the sand conveying pipe is communicated into the sand box.

The core connecting device is composed of a fixed frame, a supporting rod, a rocker arm and a core connecting table, wherein one end of the supporting rod is pivoted on the fixed frame, and the other end of the supporting rod is connected with the rocker arm; the other end of the rocker arm is fixedly connected with the core receiving platform, the core receiving platform is matched with the upper die base through rotation of the rocker arm, and the core receiving platform is used for placing a sand core formed in the die.

Furthermore, still have the stiffener on connecing the core device, the one end of stiffener is connected in the bottom that connects the core platform, and its other end fixed connection is on the bracing piece.

Further, the bottom of the sand shooting device is provided with a transverse adjusting device and a longitudinal adjusting device, the transverse adjusting device is used for adjusting the position of the sand shooting device in the transverse direction, and the longitudinal adjusting device is used for adjusting the position of the sand shooting device in the longitudinal direction.

After adopting the structure, compared with the prior art, the utility model has the advantages that: the positioning guide rod is positioned behind the die seat, and the auxiliary guide rod is linked with the upper die seat, so that the interference of the front positioning guide rod on the entering and exiting of the die during the die replacement is avoided while the positioning is ensured, and the die replacement is more convenient; the automatic sand feeding device can automatically feed sand when the sand pile in the sand box is reduced, so that the automation is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of a connection structure of an auxiliary guide bar and a linkage block of the present invention.

Detailed Description

The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention, and the present invention is further described with reference to the accompanying drawings and embodiments.

Examples, see fig. 1 and 2: a core shooter with a die convenient to disassemble and assemble comprises an outer machine body 10, wherein the outer machine body 10 is of a frame type structure, a control system, a sand box 11, an upper die base 12, a lower die base 13, a lifting device and a sand shooting device 14 are arranged in the outer machine body 10, the control system comprises an electric system, a hydraulic system and a numerical control system, the numerical control system is used for outputting operation instructions to enable the components to perform corresponding actions, and the electric system and the hydraulic system can provide power. The control system controls the operation of the lifting device and the sand shooting device 14, the sand box 11 is connected with the sand shooting device 14 to convey sand grains to the sand shooting device 14, and then the sand shooting device 14 conveys the sand grains to a mold to be molded during operation. The upper die base 12 can fix an upper die of the die, the lower die base 13 is fixedly arranged on a workbench of the outer machine body 10 and can fix a lower die of the die, and the lifting device is connected with the upper die base 12 to control the upper die base to move up and down, so that the opening and closing operation of the die can be controlled. A heating device is provided in the mold which raises the temperature of the interior of the mold after sand particles enter the mold from the sand shooting device 14 to allow the sand particles to form a mold core. The lifting device has the structure that: the lifting device comprises a lifting oil cylinder 15, a lifting rod 16, two positioning guide rods and 17 four auxiliary guide rods 18, wherein one end of the lifting rod 16 is connected with the lifting oil cylinder 15, and the other end of the lifting rod is connected with the middle part of an upper die base 12 to drive the lifting rod to lift; the rear sides of the upper die base 12 and the lower die base 13 are provided with fixed bases 19 with opposite positions, and the positioning guide rod 17 penetrates through the fixed base 19 of the upper die base 12 and the end part of the positioning guide rod is positioned in the fixed base 19 of the lower die base 13; the lower end of the auxiliary guide rod 18 is fixedly connected with the upper die base 12, and the upper end thereof is inserted into the positioning hole of the outer machine body 10 and can be lifted up and down in the positioning hole. The structure can avoid the interference of the front positioning guide rod on the mold entering and exiting when the mold is replaced, and the mold is more convenient to replace. In order to improve the linkage effect, two adjacent auxiliary guide rods 18 are connected through a linkage block 20, and the linkage block 20 can enable the auxiliary guide rods 18 to synchronously move upwards or downwards, so that the working stability is effectively improved.

The outer shell 10 is also provided with an automatic sand feeding device which is composed of a sand feeding barrel 21, a sand pump, a sand feeding pipe 22 and a gravity sensor, wherein the gravity sensor is positioned in the sand box 11 and is matched with the sand pump for working, and is used for sensing the weight of sand piles in the sand box 11; the sand pump is positioned on the sand feeding barrel 21 and is connected with a sand leakage opening at the bottom of the sand feeding barrel 21, one end of the sand feeding pipe 22 is connected with the sand pump, and the other end is communicated into the sand box 11. In use, when the gravity sensor senses that there is insufficient sand in the sand box 11, it will send a signal to the sand pump, which will then start to deliver the sand in the sand delivery barrel 21 to the sand box through the sand delivery pipe 22.

The outer shell 10 is also connected with a core connecting device which is composed of a fixed frame 30, a supporting rod 31, a rocker 32 and a core connecting platform 33, one end of the supporting rod 31 is pivoted on the fixed frame 30, and the other end is connected with the rocker 32; the other end of the rocker arm 32 is fixedly connected with a core receiving table 33, and the core receiving table 33 is used in cooperation with the upper die base 12 through rotation of the rocker arm 32 and is used for placing a sand core formed in a die. In use, after the mold core in the mold is formed, the upper mold base 12 moves upwards to drive the mold core to move upwards together, and after the mold core moves upwards to a certain height, the support rod 31 is rotated to enable the core receiving table 33 to be positioned right below the mold core; then the upper die base 12 will move upwards continuously, a baffle is arranged on the top of the outer shell 10, a thimble is arranged on the baffle, when the die moves upwards to a certain position, the thimble will pass through the upper die base 12 and the upper die to contact with the die core and eject the upper die from the upper die, so that the upper die drops onto the early die receiving table 33, then the supporting rod 31 is rotated reversely to make the die receiving table 33 penetrate out of the inner part of the outer shell 10, and the die core is manually placed. In order to improve the firmness of the core receiving platform 33, the core device is further provided with a reinforcing rod 34, one end of the reinforcing rod 34 is connected to the bottom of the core receiving platform 33, and the other end of the reinforcing rod is fixedly connected to the supporting rod 31 so as to strengthen the firmness of the core receiving platform 33.

The bottom of the sand shooting device is provided with a transverse adjusting device and a longitudinal adjusting device, the transverse adjusting device is used for adjusting the transverse position of the sand shooting device, and the structure of the sand shooting device is as follows: the sand shooting device comprises a positioning seat 41, a guide post, a hand crank 40, a screw rod, a movable nut and a slide block, wherein the movable nut is fixed at the bottom of the sand shooting device, the hand crank 40 is fixed at the end part of the screw rod, the screw rod is in threaded connection with the movable nut, the slide block is fixed at two sides of the sand shooting device and is in sliding connection with the guide post, a positioning screw hole is formed in the side surface of the slide block, a bolt can be in threaded connection with the positioning screw hole, and the guide post is fixed on the positioning seat 41; when the sand shooting device is used, the lead screw drives the movable nut to move by rotating the hand crank 40, and the movable nut drives the sand shooting device to move, so that the effect of adjusting the transverse position can be achieved; and after the required position is reached, the sliding block is positioned and locked through the bolt. The longitudinal adjusting device is used for adjusting the longitudinal position of the sand shooting device and comprises a longitudinal moving plate, a sliding block, a moving nut, a hand crank 40 and a lead screw, and the longitudinal moving plate is fixedly connected with the transverse adjusting device so as to drive the transverse adjusting device to be linked; the movable nut is positioned at the bottom of the longitudinal adjusting device, the crank handle 40 is fixed at the end part of the screw rod, the screw rod is in threaded connection with the movable nut, the sliding blocks are positioned at two sides of the longitudinal movable plate and are in sliding connection with the guide rail in the outer shell, the side surface of the sliding block is provided with a positioning screw hole, and a bolt can be in threaded connection with the positioning screw hole; in use, the longitudinal moving plate drives the transverse adjusting device to move by rotating the hand crank 40, and the transverse adjusting device can drive the sand shooting device to be linked; after the required position is reached, the sliding block is positioned and locked through the bolt, so that the function of adjusting the longitudinal position can be achieved.

The control system and the sand shooting device are widely used at present, and other structures and principles are the same as those in the prior art, so that the detailed description is omitted.

Claims

1. A core shooting machine with a mold convenient to disassemble and assemble comprises an outer machine body (10), wherein a control system, a sand box (11), an upper mold base (12), a lower mold base (13), a lifting device and a sand shooting device (14) are arranged in the outer machine body (10), the control system controls the lifting device and the sand shooting device (14) to work, and the sand box (11) is connected with the sand shooting device (14) to convey sand grains to the sand box; the lifting device is connected with the upper die base (12) to control the upper die base to move up and down; the lower die seat (13) is fixedly arranged on a workbench of the outer machine body (10); the method is characterized in that: the lifting device has the structure that: the lifting device comprises a lifting oil cylinder (15), a lifting rod (16), two positioning guide rods (17) and four auxiliary guide rods (18), wherein one end of the lifting rod (16) is connected with the lifting oil cylinder (15), and the other end of the lifting rod is connected with the middle part of an upper die base (12) to drive the lifting rod to lift; the rear sides of the upper die base (12) and the lower die base (13) are provided with fixed bases (19) with opposite positions, and the positioning guide rod (17) penetrates through the fixed base (19) of the upper die base (12) and the end part of the positioning guide rod is positioned in the fixed base (19) of the lower die base (13); the lower end of the auxiliary guide rod (18) is fixedly connected with the upper die base (12), and the upper end of the auxiliary guide rod is inserted in the positioning hole of the outer machine body (10) and can be lifted up and down in the positioning hole.

2. Core shooter with easy-to-disassemble mold as claimed in claim 1, characterized in that: the two adjacent auxiliary guide rods (18) are connected through a linkage block 20.

3. Core shooter with easy-to-disassemble mold according to claim 1 or 2, characterized in that: the automatic sand feeding device is composed of a sand feeding barrel (21), a sand pump, a sand feeding pipe (22) and a gravity sensor, wherein the gravity sensor is positioned in the sand box (11), cooperates with the sand pump and is used for sensing the weight of a sand pile in the sand box (11); the sand pump is positioned on the sand conveying barrel (21) and is connected with a sand leakage opening at the bottom of the sand conveying barrel (21), one end of the sand conveying pipe (22) is connected with the sand pump, and the other end of the sand conveying pipe is communicated into the sand box (11).

4. Core shooter with easy-to-disassemble mold according to claim 1 or 2, characterized in that: the core connecting device is composed of a fixed frame (30), a supporting rod (31), a rocker arm (32) and a core connecting table (33), one end of the supporting rod (31) is pivoted on the fixed frame (30), and the other end of the supporting rod is connected with the rocker arm (32); the other end of the rocker arm (32) is fixedly connected with a core receiving table (33), and the core receiving table (33) is matched with the upper die base (12) for use through rotation of the rocker arm (32) and is used for placing a sand core formed in a die.

5. Core shooter with easy-to-disassemble mold as claimed in claim 4, characterized in that: the core connecting device is also provided with a reinforcing rod (34), one end of the reinforcing rod (34) is connected to the bottom of the core connecting table (33), and the other end of the reinforcing rod is fixedly connected to the supporting rod (31).

6. Core shooter with easy-to-disassemble mold according to claim 1 or 2, characterized in that: the bottom of the sand shooting device is provided with a transverse adjusting device and a longitudinal adjusting device, the transverse adjusting device is used for adjusting the transverse position of the sand shooting device, and the longitudinal adjusting device is used for adjusting the longitudinal position of the sand shooting device.