CN112355247A

CN112355247A - Core ejecting device capable of automatically adjusting force for core making machine

Info

Publication number: CN112355247A
Application number: CN202011335560.4A
Authority: CN
Inventors: 孟艳芳
Original assignee: Xiamen Yiliuru Machinery Co ltd
Current assignee: Xiamen Yiliuru Machinery Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-02-12

Abstract

The invention relates to the technical field of core making machines, and discloses a core ejecting device for a core making machine, which can automatically adjust the force path. This ability automatically regulated power is led core making machine and is used ejecting core device, it removes to slide to drive the stay cord through the ejector pin, the stay cord drives the connecting block decline, the connecting block descends and cup joints with the lantern ring, when the slide bar slides, the slide bar drives gear shift, the gear rotates under the effect of tooth's socket, the gear drives the pusher dog and rotates, the pusher dog drives the swing of swing claw, the swing claw drives the connecting block swing, the connecting block drives the lantern ring swing, the rethread lantern ring is used with the cooperation of stretch cord, thereby the effect that can be according to psammitolite radius automatically regulated power is led has been.

Description

Core ejecting device capable of automatically adjusting force for core making machine

Technical Field

The invention relates to the technical field of core making machines, in particular to a core ejecting device for a core making machine, which can automatically adjust the force.

Background

The core making machine is a general name of core shooters and shell core machines, is equipment for making precoated sand shell cores by adopting a hot core box process, and the working process of the core making machine is completed by filling sand and compacting simultaneously, and the sand is immediately hardened in the hot core box, so that the labor intensity is reduced, the operation is flexible, light and convenient, the core making machine is easy to master, the electric heating is adopted, the temperature can be automatically controlled, the working place is easy to keep clean, and conditions are created for mechanization and automation of the core making process.

The conventional core making machine needs to manually take out the sand core after the core making is finished, but when the sand core with a small section is produced, the sand core is easy to break during core making due to insufficient strength of the slender sand core, and the processing efficiency is influenced.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the core ejecting device for the core making machine, which can automatically adjust the force, has the advantages of automatically ejecting the sand core, automatically adjusting the force according to the radius of the sand core, wide application range, high ejection quality, high processing efficiency and the like, and solves the problem that the sand core is easy to break and the processing efficiency is influenced when the sand core with a small production section is produced due to insufficient strength of the slender sand core.

(II) technical scheme

In order to realize the purposes of automatically ejecting the sand core, automatically adjusting the force according to the radius of the sand core, having wide application range, high ejection quality and high processing efficiency, the invention provides the following technical scheme: a core ejecting device for a core making machine capable of automatically adjusting force comprises a core box, wherein a pressure rod is fixedly connected inside the core box, a buffer spring is fixedly connected to one side, away from the inside of the core box, of the pressure rod, a slide rod is fixedly connected to one side, away from the pressure rod, of the buffer spring, a supporting spring is fixedly connected to the inner wall of the slide rod, a push rod is fixedly connected to one side, away from the slide rod, of the supporting spring, a reset spring is fixedly connected to the inner wall of the push rod, a pressing plate is fixedly connected to one side, away from the push rod, of the reset spring, a clamping block is slidably connected to the inside of the push rod, a pull rod is movably connected to one side, close to the pressing plate, of the clamping block, a pull rope is fixedly connected to one side, close to the inner wall of the slide rod, the elastic rope is close to one side fixedly connected with lantern ring in buffering wheel axle center, the outside swing joint of buffering wheel has the swing claw, the inside sliding connection of swing claw has the connecting block, one side fixedly connected with tension spring that the connecting block is close to the swing claw.

Preferably, the inner wall of the core box is provided with tooth grooves which are matched with the gear for use, so that the gear can limit the movement of the sliding rod.

Preferably, the outer side of the sliding rod is provided with an air hole, so that the ejector rod can be ejected out of the sliding rod firstly.

Preferably, the ejector rod is connected inside the sliding rod in a sliding mode, and stable transmission is guaranteed.

Preferably, the pull rod is movably connected to the outer side of the pressing plate, so that the pressing plate can drive the pull rod to move when moving.

Preferably, the inner wall of the gear is fixedly connected with a shifting claw which is matched with the swing claw for use and used for limiting the rotation of the gear.

Preferably, the inner wall fixedly connected with pin of buffer wheel when making the lantern ring reset, is located the connecting block below all the time.

Preferably, the connecting block is connected with the pull rope, and the transmission direction is changed through the fixed pulley block, so that the connecting block can be driven to move when the pull rope moves.

(III) advantageous effects

Compared with the prior art, the invention provides the core ejecting device for the core making machine, which can automatically adjust the force, and has the following beneficial effects:

1. this core making machine that ability automatically regulated power was said pushes up core device lets in gas through the atmospheric pressure pole is inside, and inside gaseous entering slide bar through the gas pocket, atmospheric pressure promoted the ejector pin and removed, and when ejector pin and psammitolite contact, atmospheric pressure promoted the slide bar and removed, and rethread slide bar and buffer spring's cooperation is used to reach and can be automatic ejecting effect with the psammitolite.

2. This ability automatically regulated power is led core making machine and is used ejecting core device, it removes to slide to drive the stay cord through the ejector pin, the stay cord drives the connecting block decline, the connecting block descends and cup joints with the lantern ring, when the slide bar slides, the slide bar drives gear shift, the gear rotates under the effect of tooth's socket, the gear drives the pusher dog and rotates, the pusher dog drives the swing of swing claw, the swing claw drives the connecting block swing, the connecting block drives the lantern ring swing, the rethread lantern ring is used with the cooperation of stretch cord, thereby the effect that can be according to psammitolite radius automatically regulated power is led has been.

Drawings

FIG. 1 is a schematic cross-sectional view of the entire structure of the present invention;

FIG. 2 is a schematic view of a top bar portion of the structure of the present invention;

FIG. 3 is an enlarged view of part A of FIG. 1;

FIG. 4 is a partial half-sectional view of a gear in accordance with the present invention;

FIG. 5 is a schematic cross-sectional view of a portion of a structural buffer wheel of the present invention;

fig. 6 is a partial schematic view of the swing claw in the structure of the invention.

In the figure: 1. a core box; 2. a pneumatic rod; 3. a buffer spring; 4. a slide bar; 5. a support spring; 6. a top rod; 7. a return spring; 8. pressing a plate; 9. a pull rod; 10. a clamping block; 11. pulling a rope; 12. a gear; 13. a buffer wheel; 14. an elastic cord; 15. a collar; 16. swinging the claw; 17. connecting blocks; 18. a tension spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a core ejecting device for a core making machine capable of automatically adjusting force comprises a core box 1, wherein the inner wall of the core box 1 is provided with tooth grooves which are matched with a gear 12 for use, so that the gear 12 can limit a slide bar 4 to move, a pressure bar 2 is fixedly connected inside the core box 1, one side of the pressure bar 2 far away from the inside of the core box 1 is fixedly connected with a buffer spring 3, one side of the buffer spring 3 far away from the pressure bar 2 is fixedly connected with a slide bar 4, the outer side of the slide bar 4 is provided with air holes, so that the push bar 6 can be ejected out of the slide bar 4 firstly, the inner wall of the slide bar 4 is fixedly connected with a support spring 5, one side of the support spring 5 far away from the slide bar 4 is fixedly connected with a push bar 6, the push bar 6 is slidably connected inside the slide bar 4 to ensure stable transmission, a clamping block 10 is connected inside the ejector rod 6 in a sliding manner, a pull rod 9 is movably connected to one side of the clamping block 10 close to the pressure plate 8, the pull rod 9 is movably connected to the outer side of the pressure plate 8, so that the pull rod 9 can be driven to move when the pressure plate 8 moves, a pull rope 11 is fixedly connected to one side of the ejector rod 6 close to the inner wall of the slide rod 4, a gear 12 is fixedly connected to the back surface of the slide rod 4, a pusher dog is fixedly connected to the inner wall of the gear 12 and is used in cooperation with a swing dog 16 for limiting the rotation of the gear 12, a buffer wheel 13 is fixedly connected inside the gear 12, a stop lever is fixedly connected to the inner wall of the buffer wheel 13, when the lantern ring 15 is reset, the lantern ring 15 is always positioned below a connecting block 17, an elastic rope 14 is fixedly connected to the inner wall of the buffer wheel 13, a lantern ring 15, the connecting block 17 is connected with the pull rope 11, and the transmission direction is changed through the fixed pulley group, so that the pull rope 11 can drive the connecting block 17 to move when moving, one side of the connecting block 17, which is close to the swing claw 16, is fixedly connected with a tension spring 18, and the tension spring 18 is used for resetting the connecting block 17.

The working principle is that after the sand core casting is finished, when the core box 1 needs to be opened, gas is introduced into the pressure rod 2, the gas enters the slide rod 4 through the gas hole, the gas pushes the ejector rod 6 to slide towards the sand core, the ejector rod 6 drives the press plate 8 to slide towards the sand core, when the press plate 8 is contacted with the sand core, the press plate 8 slides towards the inside of the ejector rod 6 under the action of the sand core, the press plate 8 drives the pull rod 9 to move towards the inside of the ejector rod 6, the pull rod 9 drives the fixture block 10 to slide towards the outside of the ejector rod 6, the fixture block 10 limits the sliding of the ejector rod 6, the ejector rod 6 drives the pull rope 11 to move while moving, the pull rope 11 drives the connecting block 17 to slide towards the outside of the swing claw 16 through the fixed pulley block, the connecting block 17 is sleeved with the lantern ring 15, the radius of the sand core is small, the farther the distance that, the lantern ring 15 enables the swing claw 16 to bear larger elasticity, the swing claw 16 bears larger elasticity and gives larger limiting force to the gear 12, at the moment, the slide rod 4 slides towards the sand core direction under the action of air pressure, the slide rod 4 drives the gear 12 to move towards the sand core direction, the gear 12 rotates under the action of tooth grooves, the gear 12 rotates to drive the pusher dog to rotate, the pusher dog rotates to drive the swing claw 16 to swing, the gear 12 limits the slide rod 4 to move under the action of the limiting force of the swing claw 16, the slide rod 4 moves slowly, the sand core is prevented from being broken by the slide rod 4, the ejection effect is better, when the slide rod 4 is in contact with the sand core, the slide rod 4 slowly ejects the sand core, the coring is convenient, after the coring is completed, the air is stopped to be introduced into the inside of the air pressure rod 2, the slide rod 4 resets under the action of the buffer spring 3, the pressing plate 8 resets under, the fixture block 10 enables the ejector rod 6 to move, and at the moment, the ejector rod 6 resets under the action of the supporting spring 5, so that the casting of the sand core cannot be influenced.

To sum up, this core making machine that can automatically regulated power way pushes up core device lets in gas through pressure bar 2 is inside, and inside gas got into slide bar 4 through the gas pocket, atmospheric pressure promoted ejector pin 6 and removed, when ejector pin 6 and psammitolite contact, atmospheric pressure promoted slide bar 4 and removed, and rethread slide bar 4 uses with buffer spring 3's cooperation to reached can be automatic with the ejecting effect of psammitolite. This ability automatically regulated power is led core making machine and is used ejecting core device, it drives stay cord 11 through 6 slip of ejector pin and removes, stay cord 11 drives connecting block 17 and descends, connecting block 17 descends and cup joints with lantern ring 15, when slide bar 4 slides, slide bar 4 drives gear 12 and removes, gear 12 rotates under the effect of tooth's socket, gear 12 drives the pusher dog and rotates, the pusher dog drives the swing of swing claw 16, swing claw 16 drives connecting block 17 and swings, connecting block 17 drives the 15 swings of lantern ring, rethread lantern ring 15 uses with the cooperation of stretch cord 14, thereby reached and to have can be according to the effect that psammitolite radius automatically regulated power was led, application scope is more extensive.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a can automatic adjust power way core ejecting device for core making machine, includes core box (1), its characterized in that: the core box comprises a core box (1), wherein a pressure rod (2) is fixedly connected to the inside of the core box (1), a buffer spring (3) is fixedly connected to one side, away from the pressure rod (1), of the pressure rod (2), a slide rod (4) is fixedly connected to one side, away from the pressure rod (2), of the buffer spring (3), a support spring (5) is fixedly connected to the inner wall of the slide rod (4), a push rod (6) is fixedly connected to one side, away from the slide rod (4), of the support spring (5), a reset spring (7) is fixedly connected to the inner wall of the push rod (6), a pressing plate (8) is fixedly connected to one side, away from the push rod (6), of the reset spring (7), a clamping block (10) is slidably connected to the inside of the push rod (6), a pull rod (9) is movably connected to one side, close to the pressing plate (8), of, the back fixedly connected with gear (12) of slide bar (4), the inside fixedly connected with buffer gear (13) of gear (12), the inner wall fixedly connected with stretch cord (14) of buffer gear (13), one side fixedly connected with lantern ring (15) that stretch cord (14) are close to buffer gear (13) axle center, the outside swing joint of buffer gear (13) has pendulum claw (16), the inside sliding connection of pendulum claw (16) has connecting block (17), one side fixedly connected with tension spring (18) that connecting block (17) are close to pendulum claw (16).

2. The core ejecting device for the core making machine capable of automatically adjusting the force according to claim 1, wherein: tooth grooves are formed in the inner wall of the core box (1).

3. The core ejecting device for the core making machine capable of automatically adjusting the force according to claim 1, wherein: the outer side of the sliding rod (4) is provided with an air hole.

4. The core ejecting device for the core making machine capable of automatically adjusting the force according to claim 1, wherein: the ejector rod (6) is connected inside the sliding rod (4) in a sliding mode.

5. The core ejecting device for the core making machine capable of automatically adjusting the force according to claim 1, wherein: the pull rod (9) is movably connected to the outer side of the pressure plate (8).

6. The core ejecting device for the core making machine capable of automatically adjusting the force according to claim 1, wherein: the inner wall of the gear (12) is fixedly connected with a pusher dog.

7. The core ejecting device for the core making machine capable of automatically adjusting the force according to claim 1, wherein: the inner wall of the buffer wheel (13) is fixedly connected with a stop lever.

8. The core ejecting device for the core making machine capable of automatically adjusting the force according to claim 1, wherein: the connecting block (17) is connected with the pull rope (11) and changes the transmission direction through the fixed pulley block.