CN210305641U - Manufacturing device for sand-lined metal mold of transmission sleeve - Google Patents

Abstract

The utility model discloses a manufacturing installation of sand lined metal mold of transmission sleeve belongs to transmission sleeve processing technology field. Aiming at the problems of complex structure, low manufacturing efficiency and low dimensional precision of a device for manufacturing a transmission sleeve in the prior art, the utility model provides a device for manufacturing sand-lined metal molds of the transmission sleeve, which comprises a molding core shooter and a molding die, wherein the molding die is arranged in the molding core shooter, a conveying roller way is arranged on the molding core shooter, and the metal molds are conveyed to the molding core shooter through the conveying roller way and connected with the molding die; the molding die comprises a base and a transmission sleeve body arranged on the base, wherein a riser is arranged at one end, far away from a core head, of the transmission sleeve body, and the riser is connected with a pouring cup through a pouring system. The device of the utility model has simple structure and convenient operation; the manufacturing efficiency of the transmission sleeve is greatly improved, and the manufactured transmission sleeve has higher dimensional precision and surface smoothness and stable quality; the consumption of molding sand is reduced, and the production cost is saved for enterprises.

Description

Manufacturing device for sand-lined metal mold of transmission sleeve

Technical Field

The utility model belongs to the technical field of the driving sleeve processing, more specifically say, relate to a manufacturing installation of driving sleeve swage sand-lined.

Background

The transmission sleeve is a cylindrical thin-wall casting with larger length, and the structural characteristics of the transmission sleeve determine the appropriate horizontal shape; in order to ensure the uniformity of the wall thickness, vertical pouring is required; the demand determines the number of pieces that must be molded; but the size of the cavity is larger due to a plurality of molding dies, so that the consumption of molding sand is increased; the sand casting production is adopted, and the problems are that: the dimensional accuracy only reaches CT8 level, the surface roughness Ra value is more than or equal to 25 μm, and the quality can not meet the design requirement; the consumption of the molding sand is high, and each piece consumes 150kg of molding sand; the production efficiency is low, and only 40 pieces can be produced in each shift; the quality is unstable, and the qualification rate of the product is low.

The iron mold sand-lined casting production technology is a special casting technical method developed by combining the national conditions of China on the basis of the research of domestic and foreign casting congruence by Chinese casting workers in the last seventies, and is a semi-precise casting method different from casting methods such as sand casting, lost foam solid casting, V method casting, metal mold casting, lost wax casting, ceramic mold casting and the like; the transmission sleeve is produced by casting the iron mold with the sand, so that the problems that the size is accurate and the surface roughness cannot meet the design requirement in sand casting production can be solved, and the transmission sleeve has the advantages of stable quality, low molding sand consumption, high production efficiency and the like; however, in the prior art, the transmission sleeve produced by casting the iron mold with sand is complex in structure, serious in investment waste and high in cost, so that some small and medium-sized enterprises cannot be suitable for the transmission sleeve; therefore, the design of the manufacturing device of the iron-type precoated sand core of the transmission sleeve, which has a simple structure and lower cost, is very meaningful.

Corresponding improvement is also carried out aiming at the problems, for example, Chinese patent application No. CN201820139200.9, the publication date is 2018, 10 and 12, the patent discloses a sand blasting device for casting loam core coated sand, which comprises a bottom plate, two support plates I symmetrically arranged on the bottom plate, a hydraulic cylinder I arranged on one side of the support plate I in a matched manner, a fixed plate I arranged on the other side of the support plate I in a matched manner, four guide rods I symmetrically arranged on the end surface of the fixed plate I, a mounting plate I sleeved on the guide rods I and a loam core mold arranged on the mounting plate I in a matched manner; the core rod of the reinforced core is provided with a main spray hole and side spray holes, and the orifice of the main spray hole is matched and communicated with the orifice of the feeding pipe, so that in the process of sand blasting and core making, precoated sand enters the main spray hole from the feeding pipe and then is blasted outside each side spray hole which goes upwards from the wall body of the core rod from the main spray hole, the number of sand blasting outlets is increased, the part which can be reached by sand blasting is widened, and the precoated sand can more quickly fill the whole mud core cavity; the overall structure of the reinforced core makes the sand blasting completed, and the reinforced core can be remained in the mud core, so that the overall strength of the mud core is increased. The disadvantages of the patent are that: the production efficiency is lower, the surface smoothness of the sand core is low, and the processing time is longer.

As another example, chinese patent application No. CN201811637320.2, published as 2019, 3, 29, discloses a device and a method for manufacturing a driving sleeve coated sand-mud core, which includes a four-way open-close core shooter and a core box mold, the core box mold is placed in the four-way open-close core shooter, and the core box mold and the four-way open-close core shooter are matched with each other; the four-direction opening and closing core shooter comprises a sand hopper, a sand shooting barrel, a base, a fixed die worktable, a movable die mechanism and a left opening and closing mechanism, wherein the sand shooting barrel is arranged below the sand hopper; a fixed die operating surface is vertically arranged downwards on one side of the horizontal operating platform, a fixed die working platform is arranged in the fixed die operating surface, and the fixed die operating surface is vertically connected with the side surface of the base; the movable die mechanism and the fixed die worktable are arranged in a horizontal opposite surface, and the movable die mechanism can slide on the base; the utility model discloses utilize four faces of four directions core shooter and core box mould that open and shut to mutually support, can realize pinpointing, make tectorial membrane sand loam core size accurate, surface finish high, the tectorial membrane sand loam core speed of this method production is very fast simultaneously, has improved production efficiency. The disadvantages of the patent are that: the core box mold has a complex structure and increases the investment cost.

Disclosure of Invention

1. Problems to be solved

The device structure that makes to prior art in the transmission sleeve is complicated, the problem that manufacturing efficiency and size precision are low, the utility model provides a manufacturing installation of transmission sleeve swage cover sand. The manufacturing efficiency of the transmission sleeve is greatly improved, and the manufactured transmission sleeve has higher dimensional precision and surface smoothness and stable quality; the consumption of molding sand is reduced, and the production cost is saved for enterprises.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A manufacturing device for sand-lined metal molds of a transmission sleeve comprises a molding core shooter and a molding mold, wherein the molding mold is arranged in the molding core shooter, a conveying roller way is arranged on the molding core shooter, and the metal molds are conveyed to the molding core shooter through the conveying roller way and connected with the molding mold; the molding die comprises a base and a transmission sleeve body arranged on the base, wherein a riser is arranged at one end, far away from a core head, of the transmission sleeve body, and the riser is connected with a pouring cup through a pouring system.

Furthermore, the number of the transmission sleeve bodies is two, and the two transmission sleeve bodies are symmetrically arranged on the base.

Furthermore, a heating hole and a temperature measuring hole are arranged on the base.

Furthermore, a plurality of positioning pins are arranged between the two transmission sleeves, and the iron mold is connected with the molding die through the positioning pins.

Furthermore, the modeling core shooter comprises a sand hopper, a sand shooting cylinder is arranged below the sand hopper, the sand shooting cylinder is respectively connected with a front driving mechanism, a rear driving mechanism and an upper driving mechanism and a lower driving mechanism, a conveying roller way and a workbench are sequentially arranged below the sand shooting cylinder, two mold locking baffles are arranged on the conveying roller way, the positions of the two mold locking baffles respectively correspond to the positions of two ends of the workbench, a modeling mold is arranged on the workbench, and a power mechanism for driving the workbench to move up and down is arranged at the bottom of the workbench.

Furthermore, the front and rear driving mechanisms and the up and down driving mechanisms are both moving cylinders, the moving cylinders are connected with a cylinder system, the power mechanism is a hydraulic cylinder, and the hydraulic cylinder is connected with the cylinder system.

Furthermore, a sand shooting hole and a positioning hole matched with the size of the positioning pin in the molding die are arranged in the iron mold, and lifting lugs are arranged on two sides of the iron mold.

Furthermore, a sealing strip is arranged on the inner wall of the sand shooting hole in the circumferential direction.

3. Advantageous effects

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

(1) the utility model is mounted on the modeling core shooter through the modeling mould, the iron mold is tightly attached to the modeling mould, the modeling core shooter shoots the sand in the iron mold to complete the sand coating of the iron mold, and the whole process is simple and convenient to operate; the iron mold is conveyed through the conveying roller way, so that the participation degree of manpower is reduced, and the abrasion of the iron mold is slowed down; a dead head is arranged at one end, far away from a core head, of a transmission sleeve body in the molding die, and the dead head is connected with a pouring cup through a pouring system, so that an iron mold can form a shape consistent with that of the molding die during sand shooting operation, and finally pouring is completed to form a transmission sleeve casting; the whole manufacturing device has high production efficiency, the finally formed transmission sleeve casting has higher dimensional precision and surface smoothness, the consumption of molding sand is reduced, and the cost is lower;

(2) the utility model discloses the transmission cover body of molding die is two, and is symmetrical to set up on the base, and whole molding die is symmetrical structure, makes molding die can be one type two, namely a molding die can make two transmission cover bodies, has greatly reduced the manufacturing time, makes production efficiency increase substantially;

(3) the base of the modeling mould is provided with the heating hole and the temperature measuring hole which are respectively matched with the heating component and the temperature control component in the modeling core shooter, so that the heating speed can be set, the accurate temperature control can be realized, the real-time monitoring can be realized in the working process, the sand-lined operation of the iron mold is more accurate, and the production efficiency is high;

(4) the utility model discloses be provided with a plurality of locating pin on the base of molding die, the locating pin can realize accurate location for the swage is connected accurately and accurately with molding die, has guaranteed that the connection of swage and molding die is firm simultaneously in the process of shooting the sand, can not take place to become flexible relatively;

(5) the sand shooting barrel in the core shooting machine is driven by the front and rear driving mechanism and the upper and lower driving mechanism, the movement of the sand shooting barrel in the front and rear and upper and lower directions is realized, the position of the sand shooting barrel can be adjusted in real time when the sand shooting operation is carried out, the whole process is easy to adjust, the sand shooting process is accurate, the waste of molding sand is effectively avoided, and the molding sand can be accurately shot into an iron mold; the front and rear driving mechanisms and the upper and lower driving mechanisms are air cylinders, the output force of the air cylinders is large, the moving stroke of the sand shooting barrel can be supported, the applicability is strong, and the service life is long;

(6) the utility model is provided with the sand shooting holes in the iron mold, the design of the sand shooting holes ensures that the molding sand in the sand shooting cylinder can enter the iron mold at a constant speed, the phenomenon of molding sand waste caused by excessive sand blasting is avoided, and the inner wall of the sand shooting holes is circumferentially provided with the sealing strip for dustproof sealing; the molding sand is effectively saved; and be provided with the lug in swage both sides, make things convenient for the swage later stage to carry to the mould assembling station, utilize the lug to transport, effective save time improves work efficiency.

Drawings

Fig. 1 is a schematic structural view of a central modeling core shooter of the present invention;

FIG. 2 is a side view of FIG. 1;

fig. 3 is a schematic structural view of the middle molding die of the present invention;

FIG. 4 is a side view of FIG. 3;

fig. 5 is a schematic structural diagram of a medium iron mold of the present invention.

In the figure: 1. a sand hopper; 2. an up-down driving mechanism; 3. a front and rear drive mechanism; 4. shooting a sand cylinder; 5. a work table; 6. a main hydraulic cylinder; 7. a heating assembly; 8. a temperature control assembly; 9. a conveying roller way; 10. a mold locking baffle plate; 11. a base; 12. a drive sleeve body; 13. a pouring cup; 14. a pouring system; 15. a riser; 16. a core print; 17. positioning pins; 18. heating the hole; 19. a temperature measuring hole; 20. positioning holes; 21. a sand shooting hole; 22, lifting lugs.

Detailed Description

The invention will be further described with reference to specific embodiments and drawings.

Example 1

As shown in fig. 3 and 4, the manufacturing device of the sand-lined metal mold of the transmission sleeve comprises a modeling core shooter and a modeling mold, wherein the modeling mold is arranged in the modeling core shooter, a conveying roller way 9 is arranged on the modeling core shooter, the metal mold is conveyed to the modeling core shooter through the conveying roller way 9 and is connected with the modeling mold, and the modeling core shooter performs sand shooting operation to the metal mold; the casting mold comprises a base 11 and a transmission sleeve body 12 arranged on the base 11, wherein a dead head 15 is arranged at one end, far away from a core head 16, in the transmission sleeve body 12, the dead head 15 is connected with a pouring cup 13 through a pouring system 14, and because the sand-lined casting of the iron mold has the characteristic of metal mold casting, the iron mold has obvious cold shock effect, the size of the dead head 15 in the casting mold is reduced compared with that of the dead head in sand casting, so that the metal consumption of the iron mold is saved, and the cost of enterprises is saved; the iron mold is connected with a molding mold, sand is shot into the iron mold by a molding core shooter, and the molding sand covered in the iron mold is consistent with the shape of the molding mold, namely the shape of the transmission sleeve casting is formed, and finally the transmission sleeve casting is formed by pouring; as shown in fig. 5, more specifically, a sand shooting hole 21 and a positioning hole 20 matched with the positioning pin 17 in the molding die in size are arranged in the iron mold, the design of the sand shooting hole 21 enables molding sand in the sand shooting cylinder 4 to enter the iron mold at a constant speed, the phenomenon of waste of the molding sand caused by excessive sand blasting is avoided, and a sealing strip is circumferentially arranged on the inner wall of the sand shooting hole 21, so that the waste phenomenon caused by the leakage of the molding sand in the sand shooting process is avoided; on the other hand, dust particles or other interferents in the air are prevented from entering the iron mold to influence the quality of the later-period product; the molding sand is effectively saved; the positioning holes 20 are matched with the positioning pins 17 for use, so that the iron mold and the molding die can be accurately positioned, the connection relation is accurate and precise, and meanwhile, the iron mold and the molding die are ensured to be stable in the sand shooting process, and relative looseness cannot occur; the swage both sides all are provided with lug 22, make things convenient for the swage later stage to carry to the mould assembling station, utilize lug 22 to transport, effective save time improves work efficiency.

The utility model has the advantages that the molding die is arranged on the molding core shooter, the iron mold is tightly attached to the molding die, the molding core shooter shoots the sand in the iron mold to complete sand coating of the iron mold, and the whole process is simple and convenient to operate; the iron mold is conveyed through the conveying roller way 9, so that the participation degree of manpower is reduced, and the abrasion of the iron mold is slowed down; a riser 15 is arranged at one end, far away from a core head 16, of a transmission sleeve body 12 in a molding die, the riser 15 is connected with a pouring cup 13 through a pouring system 14, molding sand in an iron mold can form a shape consistent with that of the molding die, pouring of pouring materials into the pouring cup 13 in the sand-coated iron mold is completed, and pouring of the transmission sleeve body 12 is performed through the pouring system 14, specifically, the pouring system 14 is formed by connecting pipelines, the initial ends of the pipelines are connected with the pouring cup 13, and the tail ends of the pipelines are connected with the transmission sleeve body 12; the pouring process is more uniform and stable, and the finally formed transmission sleeve casting has higher dimensional accuracy and surface smoothness; the modeling mold is simple in structure, easy to manufacture and high in product precision; the whole manufacturing device reduces the consumption of the molding sand, and has high production efficiency and lower cost.

Example 2

Basically as in embodiment 1, preferably, there are two transmission sleeve bodies 12, and the two transmission sleeve bodies 12 are symmetrically disposed on the base 11, specifically, the length × width of the molding die is 1100mm × 900mm, and the molding die is disposed in a symmetrical structure according to the parameter structure of "one type two pieces", where "one type two pieces" means that one molding die manufactures two transmission sleeve castings; similarly, the size specification length multiplied by the width of the iron mold is 1050mm multiplied by 860mm, and a symmetrical structure is constructed and designed according to the parameters of 'one-mold two-piece'; the iron mold and the modeling mold are both of a one-mold two-piece structure, so that two transmission sleeve castings are manufactured in one working process, the manufacturing time of the transmission sleeve is greatly reduced, and the production efficiency of the transmission sleeve is greatly improved; in this embodiment, be provided with two locating pins 17 between two driving sleeve bodies 12, be provided with the locating hole 20 that matches with locating pin 17 size in the swage, locating hole 20 uses with locating pin 17 cooperation, can realize the accurate positioning of swage and molding die, and the locating pin 17 and the locating hole 20 of other quantity all can use the utility model provides a.

Example 3

Basically the same as embodiment 1, preferably, as shown in fig. 1 and 2, the core shooter includes a sand hopper 1, a sand shooting cylinder 4 is disposed below the sand hopper 1, the sand shooting cylinder 4 is respectively connected with a front-back driving mechanism 3 and an up-down driving mechanism 2, so as to realize the movement of the sand shooting cylinder 4 in the front-back up-down direction, and the position of the sand shooting cylinder 4 can be adjusted in real time during the sand shooting operation, so that the whole process is easy to adjust, the sand shooting process is accurate, the waste of molding sand is effectively avoided, and the molding sand can be shot into an iron mold accurately; preferably, the front and rear driving mechanisms 3 and the up and down driving mechanisms 2 are both moving cylinders, the moving cylinders are connected with a cylinder system, the output force of the moving cylinders is large, the moving stroke of the sand shooting barrel 4 can be supported, the applicability is strong, the sand shooting barrel can stably work in a severe environment, and the service life is long; other driving mechanisms which can realize the front and back movement and the up and down movement of the sand shooting barrel 4 can be used in the utility model; a conveying roller way 9 and a workbench 5 are sequentially arranged below the sand shooting barrel 4, two mold locking baffles 10 are arranged on the conveying roller way 9, the positions of the two mold locking baffles 10 respectively correspond to the positions of two ends of the workbench 5, and the mold locking baffles 10 are movably connected with the conveying roller way 9; specifically, one end of the mold locking baffle 10 is movably connected with one side of the conveying roller way 9, the other end of the mold locking baffle 10 extends freely and can rotate around one end movably connected with one side of the conveying roller way 9, when mold locking operation is required, the freely movable end of the mold locking baffle 10 is placed on the other side of the conveying roller way 9, so that the two ends of the mold locking baffle 10 are respectively placed on the two sides of the conveying roller way 9, fixing of an iron mold and a molding mold is completed, and stability in a sand shooting process is improved; when the sand shooting process is finished, separating one end of the mold locking baffle plate 10, which freely moves, from the other side of the conveying roller way 9; one end of the mould locking baffle 10 can rotate and freely move; the design does not influence the transportation of the iron mold on the conveying roller 9, and can complete the fixing effect on the iron mold and the modeling mold in the sand shooting process, and the design is reasonable;

the heating assembly 7 and the temperature control assembly 8 are arranged on the workbench 5, preferably, the heating hole 18 and the temperature measuring hole 19 are arranged on the base 11 in the molding die, and the heating hole 18 and the temperature measuring hole 19 are respectively matched with the heating assembly 7 and the temperature control assembly 8 on the workbench 5 for use, so that the heating speed can be set, the accurate temperature control can be realized, the real-time monitoring can be realized in the working process, the sand-lined operation of the iron mold is more accurate, and the production efficiency is high; in the embodiment, the heating component 7 is a heating pipe, so that the structure is simple, the heat efficiency is high, and the heating component has good adaptability to severe environments; the temperature control component 8 is a temperature thermocouple, the temperature measurement range is wide, the temperature change is reflected flexibly, and the measurement precision is high; other components capable of realizing heating and temperature control can be used in the utility model; the bottom of the workbench 5 is provided with a power mechanism for driving the workbench 5 to move up and down, preferably, the power mechanism is a hydraulic oil cylinder, and the hydraulic oil cylinder is connected with an oil cylinder system; the hydraulic oil cylinder works reliably and moves stably; the hydraulic oil cylinder consists of 1 main hydraulic oil cylinder 6 and 4 auxiliary hydraulic oil cylinders, and the 4 auxiliary hydraulic oil cylinders are arranged in a rectangular shape, so that the integral output power is increased and the output power is uniformly distributed; the main hydraulic cylinder 6 is positioned at the center of the rectangle, 5 hydraulic cylinders are all arranged at the bottom of the workbench 5, and because the workbench 5 is provided with a molding die and an iron mold, the weight born by the workbench is large, and the situation of insufficient supporting power can occur to a single hydraulic cylinder, so that the work is influenced; so the utility model discloses a mode that main hydraulic cylinder 6 and vice hydraulic cylinder carried out the combination, the power that can provide is great, is enough to the up-and-down motion of supporting workbench 5 for work goes on smoothly. Other power mechanisms capable of supporting the worktable 5 to move up and down can be used in the utility model.

Example 4

A method for manufacturing sand lined metal mold for driving sleeve using the manufacturing apparatus for sand lined metal mold for driving sleeve according to any one of embodiments 1 to 3, comprising the steps of:

step A: placing a modeling mold on a workbench 5 of a modeling core shooter, installing a heating assembly 7 on the workbench 5 in a heating hole 18 in the modeling mold, installing a temperature control assembly 8 on the workbench 5 in a temperature measuring hole 19 in the modeling mold, setting the temperature of the modeling core shooter to be 260 ℃, the sand shooting time to be 8 seconds and the thermal hardening time to be 180 seconds, starting the heating assembly 7 in the modeling core shooter to heat, and simultaneously moving an iron mold to a position corresponding to the workbench 5 through a conveying roller way 9;

and B: when the modeling core shooter is heated to 260 ℃, a sand shooting power button is started, the workbench 5 and the modeling mold are driven by a hydraulic oil cylinder to move upwards together, so that the iron mold and the modeling mold are in close fit connection, the iron mold, the modeling mold and the workbench 5 continuously move upwards together, the operation is stopped when the iron mold, the modeling mold and the workbench leave the conveying roller way 9 to the position of a mold locking baffle 10, and meanwhile, the two mold locking baffles 10 finish mold locking operation; then the sand shooting barrel 4 is driven by the front and rear driving mechanism 3 to move to a position corresponding to the workbench 5, then is pressed downwards by the up-down driving mechanism 2, starts to shoot sand for 8 seconds towards the iron mold through the sand shooting hole 21, and then is lifted to reset;

and C: after 180 seconds, the mold locking baffle 10 is loosened, the workbench 5, the modeling mold and the iron mold are driven by the hydraulic oil cylinder to move downwards, when the iron mold reaches the conveying roller way 9, the iron mold stays on the conveying roller way 9, the workbench 5 and the modeling mold continue to move downwards to return to the initial position and are separated from the iron mold, the mold stripping operation is completed, at the moment, the sand coating operation of the iron mold is completed, and the sand coating operation of the iron mold is moved to a mold closing station;

step D: selecting two iron molds with sand coated, wherein one is an upper iron mold and the other is a lower iron mold, respectively checking the sand coating quality of the inner surfaces of the upper iron mold and the lower iron mold, then placing the sand core in the lower iron mold cavity, blowing the upper iron mold cavity and the lower iron mold cavity clean, locking the upper iron mold and the lower iron mold through a box clamp, and erecting the assembled upper iron mold and the lower iron mold to enable the sprue cup 13 to be upward for pouring; preferably, the poured molten steel is smelted by adopting a 1-ton medium-frequency induction furnace, and the components of the poured molten steel comprise the following components in percentage by mass: 0.35-0.45% of C, 0.20-0.40% of Si, 0.50-0.80% of Mn, 0.80-1.10% of Cr, less than or equal to 0.030% of P and less than or equal to 0.030% of S; the pouring temperature is 1560-1580 ℃, and the pouring time is 22-25 seconds; the casting effect is good due to the effect, the surface smoothness of the finally formed transmission sleeve casting is high, and the quality is stable;

step E: cooling for 10 minutes after pouring, loosening the box clamp, hoisting an iron mold after 1 hour, and hoisting the formed transmission sleeve casting to a cleaning station;

step F: naturally cooling the transmission sleeve casting to room temperature, then beginning shot blasting cleaning, and cutting the sprue cup 13 and the riser 15 by adopting oxygen-acetylene flame after cleaning; the cutting efficiency is high, the cutting effect is accurate, and the transmission sleeve casting cannot be damaged; and finally, polishing the transmission sleeve casting to obtain the required transmission sleeve casting.

The utility model solves the problems of poor size precision, low surface smoothness, low product percent of pass and the like existing in the production of casting by adopting a common sand mold, and the method of the utility model has low sand consumption, and each piece only consumes 20kg of molding sand; the production efficiency is high, and 120 pieces can be produced in each shift; the dimensional accuracy of the product can reach CT 5-6 level; the surface smoothness is high, and the surface roughness Ra value can reach 6.3-12.5 μm; the quality is stable, and the product percent of pass is 99%; when the common sand casting is adopted to produce the transmission sleeve, the size precision only reaches the CT8 level, the surface roughness Ra value is more than or equal to 25 mu m, and the quality can not meet the design requirement; the consumption of the molding sand is high, and each piece consumes 150kg of molding sand; the production efficiency is low, and only 40 pieces can be produced in each shift; the quality is unstable, and the product percent of pass is 75%; therefore, the utility model discloses the method of production transmission cover makes product precision and product surface finish improve by a wide margin, and production efficiency is high, and overall cost is lower, is fit for the production of middle-size and small-size enterprise, has higher popularization and use meaning.

The examples of the utility model are only right the utility model discloses a preferred embodiment describes, and not right the utility model discloses design and scope are injectd, do not deviate from the utility model discloses under the prerequisite of design idea, the field engineering technical personnel are right the utility model discloses a various deformation and improvement that technical scheme made all should fall into the protection scope of the utility model.

Claims (8)

1. The utility model provides a manufacturing installation of driving sleeve swage sand-lined which characterized in that: the iron mold modeling and core shooting machine comprises a modeling core shooting machine and a modeling mold, wherein the modeling mold is arranged in the modeling core shooting machine, a conveying roller way (9) is arranged on the modeling core shooting machine, and an iron mold is conveyed to the modeling core shooting machine through the conveying roller way (9) and is connected with the modeling mold; the molding die comprises a base (11) and a transmission sleeve body (12) arranged on the base (11), wherein a riser (15) is arranged at one end, far away from a core head (16), of the transmission sleeve body (12), and the riser (15) is connected with a pouring cup (13) through a pouring system (14).

2. The device for manufacturing the sand-lined metal mold for the transmission sleeve according to claim 1, wherein: the two transmission sleeve bodies (12) are symmetrically arranged on the base (11).

3. The device for manufacturing the sand lined metal mold for the transmission sleeve according to claim 2, wherein: the base (11) is provided with a heating hole (18) and a temperature measuring hole (19).

4. The device for manufacturing the sand-lined metal mold for the transmission sleeve according to claim 3, wherein: a plurality of positioning pins (17) are arranged between the two transmission sleeves, and the iron mold is connected with the molding die through the positioning pins (17).

5. The device for manufacturing the sand-lined metal mold for the transmission sleeve according to claim 1, wherein: the modeling core shooter comprises a sand hopper (1), a sand shooting cylinder (4) is arranged below the sand hopper (1), the sand shooting cylinder (4) is connected with a front driving mechanism (3) and a rear driving mechanism (3) and an upper driving mechanism and a lower driving mechanism (2) respectively, a conveying roller way (9) and a workbench (5) are sequentially arranged below the sand shooting cylinder (4), two mold locking baffles (10) are arranged on the conveying roller way (9), the positions of the two mold locking baffles (10) correspond to the positions of the two ends of the workbench (5) respectively, a heating assembly (7) and a temperature control assembly (8) are arranged on the workbench (5), and a power mechanism for driving the workbench (5) to move up and down is arranged at the bottom of the workbench (5).

6. The device for manufacturing the sand-lined metal mold for the transmission sleeve according to claim 5, wherein: the front and rear driving mechanisms (3) and the upper and lower driving mechanisms (2) are both moving cylinders, the moving cylinders are connected with a cylinder system, the power mechanism is a hydraulic cylinder, and the hydraulic cylinder is connected with the cylinder system.

7. The device for manufacturing the sand-lined metal mold for the transmission sleeve according to claim 1, wherein: and a sand shooting hole (21) and a positioning hole (20) matched with the positioning pin (17) in the molding die in size are arranged in the iron mold, and lifting lugs (22) are arranged on two sides of the iron mold.

8. The apparatus for manufacturing sand lined metal mold for driving sleeve according to claim 7, wherein: and sealing strips are arranged on the inner wall of the sand shooting hole (21) in the circumferential direction.

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