CN212371103U

CN212371103U - Equipment for smashing and recovering molding sand

Info

Publication number: CN212371103U
Application number: CN202021089092.2U
Authority: CN
Inventors: 宋德勋
Original assignee: Chongqing Jiude Machinery Manufacturing Co ltd
Current assignee: Chongqing Jiude Machinery Manufacturing Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-01-19
Anticipated expiration: 2030-06-12

Abstract

The utility model relates to the technical field of crushing equipment, and discloses molding sand smashing and recycling equipment, which comprises a shell, a crushing mechanism and a driving mechanism for driving the crushing mechanism, wherein the output end of the driving mechanism is fixed with the input end of the crushing mechanism; the partition plate is provided with a discharge port, and the screening cavity is communicated with the crushing cavity through the discharge port. This scheme of adoption can solve prior art and fall into a plurality of steps with the recovery processing of molding sand and the operating procedure that leads to is complicated and the big technical problem of cost of transportation.

Description

Equipment for smashing and recovering molding sand

Technical Field

The utility model relates to a crushing apparatus's technical field, concretely relates to recovery plant is smashed to molding sand.

Background

The molding sand separated by shot blasting from the casting contains many metal particles or metal fragments, such as iron, cobalt, nickel, etc., and if the molding sand is directly reused without screening, the strength of the mold is reduced because the molding sand contains impurities; secondly, combustion defects are easily generated in the casting, so that the quality of the casting is reduced; and would result in a waste of this metal. In addition to the metal particles and the metal member, many sand grains exist in a state where the metal and the sand grains are fused together (hereinafter referred to as magnetic attractors), and if the recycled molding sand contains too many magnetic attractors, these problems are caused. In order to keep the content of metal and magnetic attractants in the recycled molding sand as low as possible, multiple magnetic separation and screening methods are often adopted in actual operation to enable metal particles or magnetic attractants in the molding sand to be screened out more fully, but the multiple screening methods lead to a great increase in transportation cost; and get rid of behind metal particle or the magnetic attraction in the used sand, still need transport the molding sand to broken mechanism department and carry out the breakage to massive molding sand, make it reach normal required granularity, so prior art has divided into a plurality of steps with the recovery processing of molding sand, leads to the operating procedure complicated, but also need transport many times and material loading, leads to the recovery cost of molding sand too big.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it smashes recovery plant to anticipate the molding sand to solve prior art and fall into a plurality of steps with the recovery processing of molding sand and the operating procedure that leads to is complicated and the big technical problem of cost of transportation.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the molding sand smashing and recycling device comprises a shell, a smashing mechanism and a driving mechanism for driving the smashing mechanism, wherein the output end of the driving mechanism is fixed with the input end of the smashing mechanism, a partition plate for partitioning the shell into a sieving cavity and a smashing cavity is fixedly arranged in the shell, the smashing mechanism is positioned in the smashing cavity, the sieving cavity is positioned at the upper side of the smashing cavity, and a magnet is fixedly arranged on the inner wall of the sieving cavity; the partition plate is provided with a discharge port, and the screening cavity is communicated with the crushing cavity through the discharge port.

The principle and the advantages of the scheme are as follows: the used molding sand is sent into a screening cavity, and in the adding process, the magnet in the screening cavity can adsorb ferromagnetic substances in the molding sand, so that the purpose of uniformly collecting and treating the ferromagnetic substances is achieved; surplus molding sand is then through the broken intracavity of discharging port whereabouts, and actuating mechanism drives broken mechanism operation, carries out the breakage to massive molding sand, makes its state of recovering the tiny particle, the reuse of the molding sand of being convenient for to reached and retrieved the purpose of recycling to the molding sand.

The separating plate directly separates out a part at the upside of broken chamber and reuses as the screening of ferromagnetic substance, makes the user only need pay-off and material loading once, can realize two processing steps of screening of ferromagnetic substance and the breakage of molding sand, has saved the cost of transportation, and has improved machining efficiency.

Preferably, as an improvement, a crank is rotationally arranged in the screening cavity and comprises a crank I section, a crank II section and a crank III section which are fixedly connected in sequence, and the crank is integrally concave; the free end of the I section of the crank is fixed with the output end of the driving mechanism, and the free end of the III section of the crank is fixed with the input end of the crushing mechanism.

The crank rotates in the screening cavity, molding sand can be stirred and mixed, and metal particles or magnetic attractors in the molding sand can be exposed quickly; the crank is integrally concave, so that the molding sand can be pushed towards the peripheral wall of the screening cavity while being stirred and mixed, metal particles and magnetic attractors are more easily close to the magnets and are adsorbed and collected, and the metal particles and the magnetic attractors in the molding sand are removed more thoroughly.

Preferably, as a modification, the crank is provided in plurality, and the plurality of cranks are circumferentially arrayed with the output shaft of the drive mechanism as a center line.

This scheme can increase the stirring dynamics, improves propelling movement efficiency, makes metal particle and magnetic attraction can be more fast by the position of propelling movement to magnet and adsorbed the collection.

Preferably, as a modification, a spiral turning piece is rotatably arranged on the section III of the crank, and the lower end of the turning piece is in contact with the partition plate.

During the crank rotation of this scheme, can drive the turn-over piece and use the output shaft to do the rotation as the center together, and simultaneously, the lower extreme and the division board contact of turn-over piece, the division board can produce certain friction effect to the turn-over piece, in addition the molding sand stops the effect to the turn-over piece, can make the turn-over piece rotate around III sections of crank, thereby upwards turn the molding sand of downside, make and be located bottom metal particle and magnetic attraction and be turned the upside, avoid the metal particle and the magnetic attraction of bottom can not be by the condition that the crank propelling movement arrived the magnet position, thereby metal particle and magnetic attraction in the messenger's molding sand sieve more thoroughly.

Preferably, as an improvement, a bidirectional screw rod is axially arranged on an output shaft of the driving mechanism in a sliding manner, a nut is matched with the bidirectional screw rod in a threaded manner, and the nut is fixed with the shell; the free end of the bidirectional screw is fixed with the I section of the crank.

The nut of this scheme is fixed on the shell, can take place the axial and slide under the guide effect of nut when two-way screw rod rotates, so when output shaft drove two-way screw rod and rotates, two-way screw rod can be followed the axial and reciprocated sliding, and two-way screw rod can drive I section of crank and reciprocated sliding from top to bottom, and the crank can be followed two-way screw rod and reciprocated sliding from top to bottom promptly.

Preferably, as an improvement, a material turning plate is fixedly arranged on the section III of the crank.

When the two-way screw rod of this scheme drives the crank and rotates, still can drive simultaneously and turn over the flitch and rotate together, simultaneously, two-way screw rod slides from top to bottom also can drive crank and turn over the flitch and slide from top to bottom together, so the flitch of turning over of this scheme can insert the bottom of material intermittently and upwards promote the material of bottom, make the metal granule and the magnetic attraction thing that are located the bottom upwards float, and then make the crank can be with this part metal granule and magnetic attraction thing to the direction propelling movement of magnet, thereby the absorption collection degree of metal granule and magnetic attraction thing has been improved, make metal granule and magnetic attraction thing screening in the material more thorough.

Preferably, as a modification, the magnet is a permanent magnet or an electromagnet.

When the permanent magnet is used, the metal particles and the magnetic attractors in the molding sand can be adsorbed and collected without additional electrification, so that the electric energy is saved; when the electromagnet is used, the magnetic field intensity of the electromagnet can be adjusted by controlling the current intensity; and, after the screening is finished, the electromagnet is directly powered off, so that the electromagnet can lose the magnetic attraction capacity, and the metal particles and the magnetic attractors adsorbed on the electromagnet can fall downwards under the action of gravity to discharge.

Preferably, as an improvement, crushing mechanism includes broken axle and broken sword, and actuating mechanism's output shaft and broken axle are fixed, and broken sword is fixed to be located on the broken axle.

This scheme is direct to drive broken axle and broken sword through actuating mechanism's output shaft and rotates, can carry out breakage, simple structure, convenient to use to massive molding sand.

Preferably, as an improvement, a filter is fixedly arranged on the housing, and the filter is positioned at the lower side of the crushing mechanism.

This scheme can control the broken degree of molding sand, makes the broken back exhaust molding sand granularity homoenergetic up to standard, is not broken then to continue to stop in broken intracavity and carry out the breakage to the cubic molding sand of required granularity.

Preferably, as an improvement, the filter is a screen, and the periphery of the screen is fixed with the inner peripheral wall of the crushing cavity.

The screen cloth of this scheme is direct fixed with the internal perisporium in broken chamber can, simple structure, occupation space is few.

Drawings

Fig. 1 is a front sectional view of a first embodiment of the sand crushing and recycling device of the present invention.

Fig. 2 is a front sectional view of a second embodiment of the present invention.

Fig. 3 is a front sectional view of a third embodiment of the present invention.

Fig. 4 is a left side cross-sectional view of a material turning sheet according to a third embodiment of the present invention, the cross-sectional view being taken along the direction a-a in fig. 3.

Fig. 5 is a front sectional view of a fourth embodiment of the present invention.

Fig. 6 is a left side sectional view of a material turning plate according to an embodiment of the present invention, which is cut along the direction B-B in fig. 3.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a shell 1, a stepping motor 2, a crushing shaft 3, a crushing cutter 4, a partition plate 5, a feeding hole 6, a discharging hole 7, a screening cavity 8, a crushing cavity 9, a magnet 10, a crank I section 11, a crank II section 12, a crank III section 13, a discharging hole 14, a screen 15, a material turning piece 16, a bidirectional screw 17, a connecting section 18, a rectangular chute 19, a nut 20 and a material turning plate 21.

Example one

As shown in figure 1: recovery plant is smashed to molding sand, including shell 1, broken mechanism and the actuating mechanism who is used for driving broken mechanism, the left side at 1 top of shell is equipped with feed inlet 6, and the right side of 1 bottom of shell is equipped with bin outlet 7.

A partition plate 5 which divides the shell 1 into a screening cavity 8 and a crushing cavity 9 is fixedly arranged in the shell 1, the screening cavity 8 is positioned at the upper side of the crushing cavity 9, a plurality of magnets 10 are fixedly clamped on the inner wall of the screening cavity 8, the magnets 10 are permanent magnets or electromagnets 10, and the electromagnets 10 are taken as an example for explanation; the internal rotation of screening chamber 8 is equipped with the crank, and concrete setting mode is: the crank comprises a first section of crank 11, a second section of crank 12 and a third section of crank 13 which are fixedly connected in sequence, the crank is integrally concave, the situation that the first section of crank 11 and the third section of crank 13 are both perpendicular to the second section of crank 12 is shown as an example in the drawing, and an acute angle or an obtuse angle can be formed in the actual use process.

Bolt fixedly connected with actuating mechanism is passed through at shell 1's top, and actuating mechanism uses step motor 2 as an example, and step motor 2's output shaft is vertical to be set up and stretch into downwards in screening chamber 8, and the free end (the right-hand member in fig. 1) of I section 11 of crank and step motor 2's output shaft joint are fixed, and the free end (the right-hand member in fig. 1) of III sections of crank 13 and crushing mechanism's input end are fixed, specifically are: crushing mechanism is located broken chamber 9, and crushing mechanism includes broken axle 3 and broken sword 4, and on broken axle 3 was located to broken sword 4 joint was fixed, the upper end of broken axle 3 passed division board 5 and stretched into screening chamber 8, and the free end (the right-hand member in fig. 1) and the broken axle 3 joint of III sections of crank 13 are fixed to make actuating mechanism's output shaft and broken axle 3 relatively fixed.

A discharge port 14 is formed in the partition plate 5, and the screening cavity 8 is communicated with the crushing cavity 9 through the discharge port 14; the fixed filter that is equipped with on the shell 1, the filter is screen cloth 15, and screen cloth 15 all around all fixed with the interior perisporium in broken chamber 9, and screen cloth 15 is located broken mechanism's downside.

The specific implementation process is as follows: the electromagnet 10 is firstly electrified to enable the electromagnet 10 to generate a magnetic field, and if the magnetic field is a permanent magnet, the magnetic field can be directly used without being electrified in advance.

Then adding used sand into the screening cavity 8 from the feeding hole 6, wherein the used sand falls downwards under the action of gravity, during the process, metal particles and magnetic attractors (hereinafter collectively referred to as metal impurities) close to the electromagnet 10 are attracted by the electromagnet 10 to be adsorbed and collected, and other metal impurities are still mixed in the molding sand; the driving motor is started to drive the crank to rotate, and the crank stirs and mixes the molding sand, so that the metal impurities in the middle of the screening cavity 8 can be exposed more quickly; and the whole spill that is of crank can be when the stirring mixes, with molding sand and metallic impurity to the direction propelling movement of screening 8 internal perisporium, makes electro-magnet 10 can adsorb more metallic impurity and collect to metallic impurity in making the molding sand gets rid of more thoroughly.

After stirring for a certain time, opening the discharge port 14 to enable the screened molding sand to directly fall into the crushing cavity 9 for crushing; simultaneously, add the second in the chamber 8 of sieving the used sand of wholesale and sieve, at this moment, actuating mechanism drives crushing mechanism and carries out the breakage to the cubic molding sand in broken chamber 9, it stirs the mixture to drive the molding sand in the chamber 8 of sieving simultaneously, thereby reached the purpose of practicing thrift actuating mechanism, moreover, the division board 5 of this scheme is direct separates out partly screening reuse as ferromagnetic substance at the upside in broken chamber 9, make the user only need pay-off and material loading once, can realize two processing steps of screening of ferromagnetic substance and the breakage of molding sand, the transport cost is saved, and machining efficiency has been improved.

The screen cloth 15 of this scheme can control the broken degree of molding sand, makes the broken back exhaust molding sand granularity homoenergetic up to standard, is not broken then to continue to stop in broken chamber 9 and carry out the breakage to the cubic molding sand of required granularity.

Example two

As shown in fig. 2, the present embodiment is different from the first embodiment in that a plurality of cranks, two of which are shown as an example, are provided, and the plurality of cranks are circumferentially arrayed around an output shaft of the drive mechanism as a center line. During this scheme of use, a plurality of cranks can increase the stirring dynamics, improve the propelling movement efficiency to the molding sand, make metallic impurity can be more quickly by the position of propelling movement to magnet 10 and adsorbed the collection.

EXAMPLE III

As shown in fig. 3 and 4, the present embodiment is different from the first embodiment in that a helical material turning piece 16 is rotatably disposed on the crank iii section 13 in a hole-shaft fit manner, the lower end of the material turning piece 16 contacts with the partition plate 5, and a rubber piece is fixedly clamped at one end of the material turning piece 16 contacting with the partition plate 5.

In a specific implementation process, the output shaft of the stepping motor 2 rotates counterclockwise (in the top view direction of fig. 3), so as to drive the crank to rotate counterclockwise, and the crank drives the turning piece 16 to rotate counterclockwise together with the output shaft as a center; in the process that the turning piece 16 moves along with the crank, the rubber piece on the lower side of the turning piece 16 is contacted with the partition plate 5 to generate a static friction effect, so that the turning piece 16 deflects by taking the crank III section 13 as a rotation center, and the material at the bottom is lifted upwards, so that the metal impurities at the bottom are turned upwards, and the part of the metal impurities can be pushed to the position of the magnet 10 to be adsorbed and collected, and the scheme can thoroughly sieve the metal impurities.

Example four

As shown in fig. 5 and fig. 6, the present embodiment is different from the first embodiment in that a bidirectional screw 17 is axially slidably disposed on an output shaft of the driving mechanism, specifically, a connection section 18 with a rectangular cross section is integrally formed at an upper end of the bidirectional screw 17, which is described here by taking a diamond shape as an example, and a rectangular sliding groove 19 which is engaged with the connection section 18 is disposed on the output shaft, so that the connection section 18 and the output shaft are circumferentially fixed and axially slidably connected; a nut 20 is matched on the bidirectional screw 17 in a threaded manner, and the nut 20 is fixed with the shell 1; the lower end of the bidirectional screw 17 is clamped and fixed with the I section 11 of the crank. A material turning plate 21 is fixedly clamped on the section III of the crank 13, and the material turning plate 21 is obliquely arranged.

In the concrete implementation process, because nut 20 is fixed on shell 1, can take place the axial and slide under nut 20's guiding action during two-way screw 17 rotates, so step motor 2's output shaft rotates and drives two-way screw 17 when rotating, two-way screw 17 not only can drive the crank and rotate together, still can drive the crank and reciprocate from top to bottom and slide, and then drive material turning plate 21 and reciprocate from top to bottom, make material turning plate 21 insert in the material of bottom and upwards lift the material of bottom, thereby realized the promotion to the bottom material, make the metallic impurity homoenergetic that falls into the bottom position can be driven higher position, thereby make this part metallic impurity more easily by the position that the crank propelling movement magnet 10 and by the adsorption collection.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Recovery plant is smashed to molding sand, including shell, broken mechanism and the actuating mechanism who is used for driving broken mechanism, actuating mechanism's output and broken mechanism's input end are fixed, its characterized in that: a partition plate for dividing the shell into a screening cavity and a crushing cavity is fixedly arranged in the shell, the crushing mechanism is positioned in the crushing cavity, the screening cavity is positioned at the upper side of the crushing cavity, and a magnet is fixedly arranged on the inner wall of the screening cavity; the partition plate is provided with a discharge port, and the screening cavity is communicated with the crushing cavity through the discharge port.

2. The sand-crushing reclamation apparatus as recited in claim 1, wherein: a crank is rotatably arranged in the screening cavity and comprises a crank I section, a crank II section and a crank III section which are fixedly connected in sequence, and the crank is integrally concave; the free end of the I section of the crank is fixed with the output end of the driving mechanism, and the free end of the III section of the crank is fixed with the input end of the crushing mechanism.

3. The sand-crushing reclamation apparatus as recited in claim 2, wherein: the crank is provided with a plurality of cranks, and the plurality of cranks are distributed in a circumferential array by taking an output shaft of the driving mechanism as a central line.

4. The sand-crushing reclamation apparatus as recited in claim 2, wherein: and a spiral material turning piece is rotationally arranged on the section III of the crank, and the lower end of the material turning piece is in contact with the partition plate.

5. The sand-crushing reclamation apparatus as recited in claim 2, wherein: a bidirectional screw rod is axially and slidably arranged on an output shaft of the driving mechanism, a nut is in threaded fit with the bidirectional screw rod, and the nut is fixed with the shell; the free end of the bidirectional screw is fixed with the I section of the crank.

6. The sand-crushing reclamation apparatus as recited in claim 5, wherein: and a material turning plate is fixedly arranged on the section III of the crank.

7. The sand-crushing reclamation apparatus as recited in claim 1, wherein: the magnet is a permanent magnet or an electromagnet.

8. The sand-crushing reclamation apparatus as recited in claim 1, wherein: the crushing mechanism comprises a crushing shaft and a crushing cutter, an output shaft of the driving mechanism is fixed with the crushing shaft, and the crushing cutter is fixedly arranged on the crushing shaft.

9. The sand-crushing reclamation apparatus as recited in claim 1, wherein: the shell is fixedly provided with a filter, and the filter is positioned on the lower side of the crushing mechanism.

10. The sand-crushing reclamation apparatus as recited in claim 9, wherein: the filter is a screen, and the periphery of the screen is fixed with the inner peripheral wall of the crushing cavity.