CN213086111U

CN213086111U - Metal casting surface passivation device

Info

Publication number: CN213086111U
Application number: CN202020306828.0U
Authority: CN
Inventors: 孙飞
Original assignee: Dabowen Precision Hardware Technology Suzhou Co ltd
Current assignee: Dabowen Precision Hardware Technology Suzhou Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2021-04-30
Anticipated expiration: 2030-03-13

Abstract

The utility model relates to a metal casting surface passivation device forms the end flow in the membrane tube, avoids colloidal particle and suspended solid to deposit at the membrane surface and adheres to, reduces the risk that the micro-filtration membrane blockked up, makes the micro-filtration membrane can long-time stable operation, greatly reduced cleaning frequency, practiced thrift the cost, the utility model discloses a circulating pump can be with the passivation liquid suction that filters in the constant temperature equipment, and constant temperature equipment can cool off or heat the passivation liquid, and the temperature of effectual control passivation liquid guarantees the integrity of passivation shaping to promote the passivation effect of metal greatly, guarantee the passivation quality, can also avoid the wasting of resources simultaneously; the hollow protective cover sleeved outside the submersible mixer can play a certain role in protection, and simultaneously avoid direct contact with metal, thereby ensuring the stability of the passivation process; the utility model discloses can collect the processing to passivation liquid, avoid appearing unnecessary passivation liquid behind passivation liquid and clear away not thoroughly, influence the healthy condition of staff.

Description

Metal casting surface passivation device

Technical Field

The utility model relates to a metal casting processing technology field, concretely relates to metal casting surface passivation device.

Background

After the metal casting is machined, passivation treatment is needed, so that the surface of the metal casting is covered with a layer of oxidation-resistant film, and the metal casting has longer service life. However, after the passivation solution is smeared on the galvanized plate, the passivation solution is easy to drop along the galvanized plate, and the passivation solution contains more toxic and harmful substances, so that the passivation solution is easy to harm the health of workers and can make the metal surface be a passive solution. The traditional passivation technology can not conveniently recover the passivation solution, thereby increasing the cost of enterprises and unnecessary waste. In view of the above drawbacks, it is desirable to design a metal casting surface passivation apparatus.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a metal casting surface passivation device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a metal casting surface passivation device comprises a box body, wherein a feed inlet is formed in the left side wall of the box body, a discharge outlet is formed in the right side wall of the box body, a metal casting enters from the feed inlet and moves out from the discharge outlet, a conveying roller is fixedly arranged in the inner cavity of the box body and is connected with an external driving mechanism, the metal casting can be conveyed through the conveying roller, a spraying device and an air drying device are sequentially and fixedly arranged in the inner cavity of the box body from left to right, the metal casting sprayed with passivation liquid can be dried through the air drying device, a constant temperature device is arranged at the top of the box body and is connected with the constant temperature device, a collecting tank is arranged at the bottom of the inner cavity of the box body, a discharge outlet penetrating through the box body is formed in the lower side wall of the collecting tank, redundant passivation liquid on the surface of the, the discharge port is connected with an external connecting pipe, and the connecting pipe is connected with a recovery device.

Preferably, the spraying device comprises a water pipe, and a first spray head communicated with the lower side wall of the water pipe is fixedly installed on the lower side wall of the water pipe.

Preferably, the air-drying device comprises a fan, the fan is fixedly mounted on the inner cavity of the box body, the fan is connected with an external power supply, the outer side of the fan is located on the inner cavity of the box body, the side wall is fixedly mounted with a mounting frame, a heating device is fixedly mounted in the mounting frame and comprises an external metal pipe, the external metal pipe is of a cross structure, a heating resistance wire is fixedly mounted in the inner cavity of the external metal pipe, and the heating resistance wire is connected with the external power supply.

Preferably, the recovery device comprises a recovery box body, the two sides of the upper end face of the recovery box body are symmetrically provided with a purification liquid inlet pipe, the purification liquid is added, the lower end face of the recovery box body is provided with a liquid conveying pipe, the liquid storage tanks on the two sides are arranged in the recovery box body, the opposite faces of the liquid storage tanks are distributed over a second spray head, reaction plates are arranged between the liquid storage tanks, an adsorption layer and a filter layer which are arranged on the lower portion of the liquid storage tanks are arranged at the bottom of the recovery box body, one end of the liquid conveying pipe penetrates through a thermostatic bath, a circulating pump is arranged in the middle of the liquid conveying pipe, the liquid conveying pipe and the recovery box body form a closed loop, rare and noble metal coatings are attached to the inner wall of the recovery box body, are made of rare noble metal mixtures and conductive resins, are wave-shaped, the end of the tubular microfiltration membrane is provided with an arc elbow, and the tubular microfiltration membranes are connected in series through the arc elbow.

Preferably, the thermostatic device includes the thermostatic bath, the inside inner tube that is provided with of thermostatic bath, the top of thermostatic bath is provided with the capping, the capping sets up at inner tube upper shed department, installs electric heater on the capping, and electric heater's heating end stretches into in the inner tube, for the passivation liquid heating in the inner tube, still installs temperature sensor on the capping, and temperature sensor's temperature measurement end stretches into in the inner tube.

Preferably, the inside baffle that is provided with of inner tube, the baffle separates into two section of thick bamboo chambeies of big, little section of thick bamboo with the inner tube, makes two section of thick bamboo chambeies form the linker that upper end and lower extreme all communicate, electric heater's heating end, temperature sensor's temperature measurement end are located little section of thick bamboo, install evaporimeter and heat exchange coil in the little section of thick bamboo, the evaporimeter encircle along little section of thick bamboo inner wall, heat exchange coil sets up the inboard at the evaporimeter, evaporimeter and the outside compressor refrigeration unit intercommunication of thermostatic bath, heat exchange coil and the outside refrigerant heat transfer pipeline intercommunication of thermostatic bath.

Preferably, the inside dive mixer that is provided with of thermostatic bath, the dive mixer is located a little section of thick bamboo, dive mixer outside is provided with the fretwork protection casing.

Compared with the prior art, the utility model relates to a metal casting surface passivation device, metal casting gets into from feed inlet, carry metal casting through the conveying roller, then spray to metal casting to passivate by spray set's first shower nozzle, the waste liquid after spraying gets into the collecting vat of below, metal casting after passivating through spray set passes through air-dry device, dry the upper surface of metal casting through air-dry device, can collect again the unnecessary passivation solution in metal casting surface through the collecting vat, the passivation solution in the collecting vat gets into the recovery unit inside through the connecting pipe, recovery unit can make passivation solution recycle, through establishing ties a plurality of tubular microfiltration membranes, filtration degree has been increased, form the end flow in the membrane pipe, avoid colloidal particle and suspended solid to deposit and adhere to on the membrane surface, reduce the risk that the microfiltration membrane blocks up, the microfiltration membrane can stably run for a long time, the cleaning frequency is greatly reduced, the cost is saved, the filtered passivation solution enters a liquid conveying pipe, the filtered passivation solution can be pumped into a constant temperature device through a circulating pump, the constant temperature device can cool or heat the passivation solution, the temperature of the passivation solution is effectively controlled, and the integrity of passivation forming is ensured, so that the passivation effect of metal is greatly improved, the passivation quality is ensured, and meanwhile, the resource waste can be avoided; the hollow protective cover sleeved outside the submersible mixer can play a certain role in protection, and simultaneously avoid direct contact with metal, thereby ensuring the stability of the passivation process; the utility model discloses can collect the processing to passivation liquid, avoid appearing unnecessary passivation liquid behind passivation liquid and clear away not thoroughly, influence the healthy condition of staff.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

FIG. 1 is a schematic structural view of a metal casting surface passivation device according to the present invention;

FIG. 2 is a schematic structural view of a heating device in the metal casting surface passivation device of the present invention;

FIG. 3 is a schematic structural view of a recovery device in the metal casting surface passivation device of the present invention;

FIG. 4 is a schematic view of a filter layer structure in the passivation device for metal casting surfaces according to the present invention;

FIG. 5 is a schematic view of the structure of the adsorption layer in the passivation device for metal casting surface according to the present invention;

fig. 6 is a schematic structural view of a thermostat in the metal casting surface passivation device of the present invention.

In the drawings:

1. a box body; 2. a conveying roller; 3. a spraying device; 301. a first nozzle; 302. a water pipe; 4. an air drying device; 401. a fan; 402. a mounting frame; 403. a heating device; 404. an outer metal tube; 405. Heating resistance wires; 5. collecting tank; 6. a recovery device; 601. a recovery box body; 602. a purified liquid inlet pipe; 603. a transfusion tube; 604. a liquid storage tank; 605. a second nozzle; 606. a reaction plate; 607. a circulation pump; 608. a confluence device; 609. an adsorption layer; 610. a filter layer; 611. a tubular microfiltration membrane; 612. an arc-shaped elbow; 7. a connecting pipe; 8. a thermostatic device; 801. a thermostatic bath; 802. a slot cover; 803. an electric heater; 804. an inner barrel; 805. a heat insulation layer; 806. hollowing out the protective cover; 807. an evaporator; 808. a partition plate; 809. a heat exchange coil; 810. a temperature sensor; 811. a submersible mixer.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a passivation device for the surface of a metal casting comprises a box body 1, wherein a feed inlet is formed in the left side wall of the box body 1, a discharge outlet is formed in the right side wall of the box body 1, the metal casting enters from the feed inlet and moves out from the discharge outlet, a conveying roller 2 is fixedly installed in the inner cavity of the box body 1, the conveying roller 2 is connected with an external driving mechanism, the metal casting can be conveyed through the conveying roller 2, a spraying device 3 and an air drying device 4 are sequentially and fixedly installed in the inner cavity of the box body 1 from left to right, the metal casting sprayed with passivation liquid can be dried through the air drying device 4, a constant temperature device 8 is arranged at the top of the box body 1, the spraying device 3 is connected with the constant temperature device 8, a collecting tank 5 is arranged at the bottom of the inner cavity of the box body 1, a discharge outlet penetrating through the box body 1 is formed, the passivation liquid after collecting is discharged through the discharge port, and outside connecting pipe 7 is connected to the discharge port, and connecting pipe 7 is connected with recovery unit 6, discharges unnecessary passivation liquid through connecting pipe 7 in recovery unit 6, avoids passivation liquid to cause the potential safety hazard to staff's healthy.

The spraying device 3 in this embodiment includes a water pipe 302, the lower side wall of the water pipe 302 is fixedly provided with a first nozzle 301 communicated with each other, the water pipe 302 is connected with an external thermostatic bath 801, the thermostatic bath 801 provides passivation liquid into the water pipe 302, and the passivation liquid is sprayed to the metal casting through the first nozzle 301, so that the surface of the metal casting can be passivated.

The air drying device 4 in the embodiment comprises a fan 401, the fan 401 is fixedly mounted on the upper side wall of the inner cavity of the box body 1, the fan 401 is connected with an external power supply, a mounting frame 402 is fixedly mounted on the upper side wall of the inner cavity of the box body 1 on the outer side of the fan 401, a heating device 403 is fixedly mounted in the mounting frame 402 and comprises an external metal pipe 404, the external metal pipe 404 is of a cross structure, a heating resistance wire 405 is fixedly mounted in the inner cavity of the external metal pipe 404, the heating resistance wire 405 is connected with the external power supply, and the heating resistance wire 405 generates heat after being electrified so as to enable the external metal pipe 404 to generate heat.

The recovery device 6 in this embodiment includes a recovery box 601, the two sides of the upper end surface of the recovery box 601 are symmetrically provided with a purification liquid inlet pipe 602 for adding purification liquid, the lower end surface of the recovery box 601 is provided with a liquid transport pipe 603, the interior of the recovery box 601 is provided with liquid storage tanks 604 located at two sides, the opposite surfaces of the liquid storage tanks 604 are distributed over a second spray head 605, a reaction plate 606 is arranged between the liquid storage tanks 604, the bottom of the recovery box 601 is provided with an adsorption layer 609 and a filter layer 610 located at the lower part of the liquid storage tanks 604, one end of the liquid transport pipe 603 penetrates through a thermostatic bath 81, the middle part of the liquid transport pipe 603 is provided with a circulating pump 607, so that the passivation liquid can be purified for multiple times, the purification rate is improved, the liquid transport pipe 603 and the recovery box 601 form a closed loop, the inner, the reaction plate 606 is a titanium metal plate, the lower end of the adsorption layer is provided with a trapezoidal confluence device 608, the bottom end of the confluence device 608 is connected with a filter layer 610, the filter layer 610 comprises a plurality of tubular microfiltration membranes 611, the tubular microfiltration ends are provided with arc-shaped elbows 612, and the tubular microfiltration membranes 611 are connected in series through the arc-shaped elbows 612, so that colloidal particles and suspended solids are prevented from precipitating and attaching on the membrane surface. The device convenient operation, can make passivation solution recycle, through a plurality of tubular microfiltration membranes 611 of establishing ties, the filtration degree has been increased, form the end flow in the membrane tube, it adheres to avoid colloidal particle and suspended solid to deposit at the membrane surface, reduce the risk that the microfiltration membrane blockked up, make the long-time steady operation of microfiltration membrane, greatly reduced cleaning frequency, the cost is saved, retrieve box 601 inner wall and have rare metal, it is difficult for this recovery unit to corrode, service life has been increased, circulating pump 607 can make passivation solution many times circulate and purify, the purification degree is improved, be favorable to passivation solution to retrieve.

The constant temperature device 8 in this embodiment includes a constant temperature bath 801, an inner cylinder 804 is disposed in the constant temperature bath 801, a cover 802 is disposed on the top of the constant temperature bath 801, the cover 802 is disposed at an upper opening of the inner cylinder 804, an electric heater 803 is mounted on the cover 802, a heating end of the electric heater 803 extends into the inner cylinder 804 to heat passivation solution in the inner cylinder 804, a temperature sensor 810 is further mounted on the cover 802, a temperature measuring end of the temperature sensor 810 extends into the inner cylinder 804 to measure temperature of passivation solution in the inner cylinder 804, a partition 808 is disposed in the inner cylinder 804, the partition 808 divides the inner cylinder 804 into two cylinder cavities, namely a large cylinder cavity and a small cylinder cavity, so that the two cylinder cavities form a communicating device with both upper and lower ends communicated, the heating end of the electric heater 803 and the temperature measuring end of the temperature sensor 810 are located in the small cylinder, an evaporator 807 and a heat exchange coil 809 are mounted in the small cylinder, the evaporator 807 is surrounded along the inner wall of the small cylinder, the heat exchange coil 809 is arranged on the inner side of the evaporator 807, the evaporator 807 is communicated with a compressor refrigeration unit outside the thermostatic bath 801, and the heat exchange coil 809 is communicated with a refrigerant heat exchange pipeline outside the thermostatic bath 801. Inside dive mixer 811 that is provided with of thermostatic bath 801, dive mixer 811 is located a little section of thick bamboo, dive mixer 811 outside is provided with fretwork protection casing 806.

The refrigerant heat exchange pipeline in the embodiment is a closed-loop circulation pipeline, the pipeline is sequentially provided with a refrigerant box, a pump refrigerant heat exchange coil and an air cooling heat exchanger, and the refrigerant is cooled in an air cooling mode; the compressor refrigeration unit is a conventional refrigeration loop for a compressor air conditioner, and is sequentially provided with a compressor, a Freon condenser, a liquid storage tank, an electromagnetic valve, a groove cooling capillary tube and a groove cooling evaporator, wherein the electromagnetic valve is connected with a controller, and the loop forms a groove medium refrigeration loop.

The inner cylinder 804 in this embodiment is formed by pressing or welding a metal material, and an oil outlet is formed in the lower portion of the inner cylinder 804.

The partition plate 808 in this embodiment has the function of dividing the inner space of the inner cylinder into intercommunicating vessels, so as to facilitate the forced circulation of the slot media; the electric heater 803 belongs to a heating source of an electric heating unit and is responsible for heating the bath media in the processes of constant-speed bath temperature rise, constant temperature and the like.

The submersible mixer 811 in this embodiment includes a motor for mixing, a mixing blade and a mixing rod, the upper end of the mixing rod is connected with the motor, the mixer is used for forcing the tank medium to be rapidly mixed, the heat provided by the electric heater and the cold provided by the tank cooling evaporator or the refrigerant heat exchange coil pipe are rapidly and uniformly distributed in the tank medium in the whole tank, and the uniform temperature field of the working area in the tank and the thermal lag of the constant speed tank are ensured to be as small as possible.

The heat exchange coil 809 in this embodiment is used as a heat exchanger for cooling the refrigerant at a higher tank temperature by heat exchange; and a heat preservation and insulation layer 805 is further arranged in the constant temperature groove 801 and wraps the outer wall of the inner barrel to play a role in heat preservation and insulation.

When the utility model is used, a metal casting enters from a feed inlet, the metal casting is conveyed by the conveying roller 2, then the first spray nozzle 301 of the spray device 3 sprays the metal casting for passivation, the sprayed waste liquid enters into the collecting tank 5 below, the metal casting passivated by the spray device 3 passes through the air drying device 4, the upper surface of the metal casting is dried by the air drying device 4, the redundant passivating liquid on the surface of the metal casting can be collected again by the collecting tank 5, the passivating liquid in the collecting tank 5 enters the recovery device 6 through the connecting pipe 7, the recovery device 6 can recycle the passivating liquid, the filtering degree is increased by connecting a plurality of tubular micro-filtration membranes 611 in series, end flow is formed in the membrane pipes, the precipitation adhesion of colloid particles and suspended solids on the membrane surface is avoided, and the risk of micro-filtration membrane blockage is reduced, make microfiltration membrane can long-time steady operation, greatly reduced washs the frequency, the cost is practiced thrift, the passivation liquid that filters gets into transfer line 603, can be with the passivation liquid suction constant temperature equipment 8 that filters in through circulating pump 607, constant temperature equipment 8 can cool off or heat the passivation liquid, the fashioned integrity of passivation is guaranteed to the temperature of effectual control passivation liquid to promote the passivation effect of metal greatly, guarantee the passivation quality, can also avoid the wasting of resources simultaneously.

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 metal casting surface passivation device, includes box (1), its characterized in that: the feed inlet has been seted up to the left side wall of box (1), and the right side wall of box (1) has seted up the discharge gate, and the metal casting gets into from feed inlet department, shifts out from the discharge gate department, and the inner chamber fixed mounting of box (1) has conveying roller (2), and conveying roller (2) are connected with external drive mechanism, and the inner chamber of box (1) has spray set (3) and air-drying device (4) from a left side to the right side fixed mounting in proper order, the top of box (1) is provided with constant temperature equipment (8), spray set (3) are connected with constant temperature equipment (8), the inner chamber bottom of box (1) is provided with collecting vat (5), and the discharge port that runs through box (1) is seted up to the lower lateral wall of collecting vat (5), and external connection pipe (7) are connected with recovery unit (.

2. A metal casting surface passivation device in accordance with claim 1, wherein: the spraying device (3) comprises a water pipe (302), and a first spray head (301) communicated with the water pipe (302) is fixedly installed on the lower side wall of the water pipe.

3. A metal casting surface passivation device in accordance with claim 1, wherein: air-dry device (4) including fan (401), lateral wall on the inner chamber of box (1) is fixed mounting fan (401), and external power source is connected in fan (401), lateral wall fixed mounting has mounting bracket (402) on the outer side of fan (401) is located the inner chamber of box (1), and fixed mounting has heating device (403) in mounting bracket (402), and heating device (403) include outside tubular metal resonator (404), outside tubular metal resonator (404) are the cruciform structure, and the inner chamber fixed mounting of outside tubular metal resonator (404) has heating resistor (405), and external power source is connected in heating resistor (405).

4. A metal casting surface passivation device in accordance with claim 1, wherein: the recovery device (6) comprises a recovery box body (601), wherein purification liquid inlet pipes (602) are symmetrically arranged on two sides of the upper end surface of the recovery box body (601), the purification liquid is added, an infusion pipe (603) is arranged on the lower end surface of the recovery box body (601), liquid storage tanks (604) positioned on two sides are arranged inside the recovery box body (601), second spray heads (605) are distributed on opposite surfaces of the liquid storage tanks (604), a reaction plate (606) is arranged between the liquid storage tanks (604), an adsorption layer (609) and a filter layer (610) positioned on the lower portion of the liquid storage tank (604) are installed at the bottom of the recovery box body (601), a constant temperature tank (801) is penetrated by one end of the infusion pipe (603), a circulating pump (607) is installed in the middle of the infusion pipe (603), the infusion pipe (603) and the recovery box body (601) form a closed loop, rare and noble metal coatings are attached, the reaction plate (606) is wavy, the reaction plate (606) is a titanium metal plate, the lower end of the adsorption layer (609) is provided with a trapezoidal confluence device (608), the bottom end of the confluence device (608) is connected with a filter layer (610), the filter layer (610) comprises a plurality of tubular microfiltration membranes (611), the ends of the tubular microfiltration membranes (611) are provided with arc-shaped elbows (612), and the tubular microfiltration membranes (611) are connected in series through the arc-shaped elbows (612).

5. A metal casting surface passivation device in accordance with claim 1, wherein: constant temperature equipment (8) include thermostatic bath (801), thermostatic bath (801) inside is provided with inner tube (804), the top of thermostatic bath (801) is provided with capping (802), capping (802) set up at inner tube (804) upper shed department, install electric heater (803) on capping (802), and the heating end of electric heater (803) stretches into in inner tube (804), still installs temperature sensor (810) on capping (802), and the temperature measurement end of temperature sensor (810) stretches into in inner tube (804).

6. A metal casting surface passivation device according to claim 5, characterized by: the utility model discloses a heat exchanger, including inner tube (804), inner tube (804) inside be provided with baffle (808), baffle (808) separate into two section of thick bamboo chambeies of big, little section of thick bamboo with inner tube (804), make two section of thick bamboo chambeies form the intercommunication ware that upper end and lower extreme all communicate, install evaporimeter (807) and heat exchange coil (809) in the little section of thick bamboo, evaporimeter (807) encircle along little section of thick bamboo inner wall, heat exchange coil (809) set up the inboard at evaporimeter (807), evaporimeter (807) and the outside compressor refrigeration unit intercommunication of thermostatic bath (801), heat exchange coil (809) and the outside refrigerant heat transfer pipeline intercommunication of thermostatic bath (801).

7. A metal casting surface passivation device according to claim 5, characterized by: the inside dive mixer (811) that is provided with of thermostatic bath (801), dive mixer (811) outside is provided with fretwork protection casing (806).