A mold assembly for a wax injection machine, apparatus

Abstract

The wax injection machine mold assembly and equipment comprises two core shafts which are arranged at 90 degrees and are sent into a belt; the two core shafts are respectively arranged as a male core shaft and a female core shaft; a core shaft pairing station is arranged at a converging output end of the two core shafts, the male core shaft and the female core shaft are converged and paired as an integrated core mold at the core shaft pairing station; an input end of a core output conveying belt is arranged at an output end of the core shaft pairing station to convey the core mold; a core pulling U-shaped fork head controlled by a mechanical hand is arranged at the core shaft pairing station; the core pulling U-shaped fork head is inserted on a male pulling soft shaft and pulls out a male rear clamping plate and assists in fixing; the design is reasonable, the structure is compact and the use is convenient.

Description

TECHNICAL FIELD

[0001] The present invention relates to a wax injection machine mold assembly, apparatus. BACKGROUND

[0002] In the long-term work practice, the exhaust manifold of the turbocharged engine is directly connected with the straight pipe type three-way catalytic device in the past, which has poor high temperature resistance, is not conducive to the layout of the engine and the chassis system, and is inconvenient for the operator to operate and use and shortens the service life. For example, CN201620476627.9 a new air purification device for the exhaust end of a turbocharged vehicle. The mandrel is directly related to the internal structure shape of the casting, and its quality directly affects the internal structure of the casting and the generation of casting defects. Although the existing mandrel uses shell core machine to make core, due to the relatively large size of the exhaust end cone cavity mechanism, the shell core machine either affects the strength of the mandrel due to the thin thickness of the shell, or the thickness of the shell is thick and inconsistent, which causes the mandrel to have a large amount of air and causes casting defects, and the amount of sand increases, which increases the cost of the mandrel. Due to the large size of the exhaust end cone cavity mandrel, the traditional shell core machine core making process, the shell thickness of the mandrel is uneven, which causes the mandrel to have low strength due to the thin thickness of the shell, and the mandrel has a large amount of air due to the thick thickness of the shell, which causes casting defects and increases the amount of sand. Therefore, in order to solve the problem of casting defects caused by uneven shell thickness of the mandrel during the production process of the mandrel, the uniformity and strength of the shell thickness of the mandrel need to be solved.

[0003] At present, the Chinese patent with the publication number CN205033459U on the market discloses a wax injection machine, which comprises a rack, a wax supplementing oil cylinder is installed on the right side of the rack; a workbench is arranged on the top of the rack, a wax injection oil cylinder is installed on the right side and rear end of the workbench, a wax storage barrel is installed on the left side of the wax injection oil cylinder; a wax injection mechanism is installed on the right side and front end of the workbench, the wax injection oil cylinder is drivingly connected with the wax injection mechanism; an electric control box is installed above the wax injection mechanism; a mold and a fixed mold plate are arranged on the left side and front end of the workbench, the fixed mold plate is located above the mold; a mold plate working oil cylinder is fixedly installed on the upper end face of the fixed mold plate, a working mold plate is arranged below the fixed mold plate, the working mold plate is X-shaped, and the working oil cylinder is drivingly connected with the working mold plate; the working mold plate is located above the mold.

[0004] While this type of wax injection machine expands the working field of vision, is convenient to operate, and is safer, it requires workers to bend over to place the mold under a fixed template before each injection operation, and to bend over again to remove the mold from under the template after the injection is completed. This repeated operation can easily lead to safety accidents. Investment casting, also known as lost-wax casting, includes processes such as wax pressing, wax trimming, tree assembly, slurry application, wax melting, pouring molten metal, and post-processing. Lost-wax casting uses wax to create a wax model of the part to be cast, then coats the wax model with clay slurry, creating a clay model. After the clay model dries, it is fired to form a ceramic mold. Upon firing, the wax model completely melts and disappears, leaving only the ceramic mold. A pouring gate is usually left when making the clay mold; molten metal is then poured through the gate, and after cooling, the desired part is formed. Therefore, the production of wax models is an important process, which is completed using a wax injection machine. The molding of wax models is greatly affected by the wax injection machine. Currently, most wax injection machines are not stable enough, so the wax models produced by them often have defects. Summary of the Invention

[0005] The technical problem to be solved by this invention is, in general, to provide a wax injection mold equipment and method. The parent invention, wax injection mold equipment and method, is filed on November 20, 2020, under CN202011315114.7.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0007] An exhaust end cone includes an exhaust end cone component; the exhaust end cone component has a cavity structure, has a curved body, and has connection port portions at both ends of the curved body.

[0008] The exhaust end cone is supported by a casting process and includes a forming mold assembly.

[0009] A mold for an exhaust end cone, comprising a forming mold assembly for casting the exhaust end cone;

[0010] The forming die assembly includes a lower forming die, a forming mandrel assembly, and an upper forming die;

[0011] The forming mandrel assembly includes a forming male mandrel and a forming female mandrel that are detachably connected at their ends;

[0012] The male and female mandrels are inserted into and connected as a single mandrel mold from both ends of the curved inner cavity of the exhaust end tapered part.

[0013] A forming male positioning shoulder is provided at the outer end of the forming male mandrel. The forming male mandrel has a hollow forming male adapter mandrel sleeve, and the end of the forming male adapter mandrel sleeve is connected to the forming male positioning shoulder.

[0014] The forming male positioning plug is vertically exposed in the center of the end of the forming male adapter mandrel sleeve and has a forming radial center passage. The forming male positioning plug is provided with a forming male orientation key. The forming radial center passage and the forming male adapter mandrel sleeve are connected and have a forming radial passage with a long slot cross section. The forming male front clamping plate is axially movable in the forming radial passage. The forming male pulling flexible shaft is connected to the rear end of the forming male front clamping plate. The forming male pulling flexible shaft is exposed after passing through the inner cavity of the forming male adapter mandrel sleeve. The forming male rear clamping plate is arranged at the exposed end of the forming male pulling flexible shaft. A limiting plate is arranged at the rear end of the forming radial center passage to prevent the forming male front clamping plate from being pulled out. A fastener is arranged on the forming male pulling flexible shaft.

[0015] The forming female positioning shaft shoulder is arranged at the outer end of the forming female mandrel. The forming female mandrel has a hollow forming female adapter mandrel sleeve. The end of the forming female adapter mandrel sleeve is connected to the forming female positioning shaft shoulder.

[0016] Two forming female partition plates are arranged in the inner cavity of the forming female adapter mandrel sleeve. The forming female adapter mandrel sleeve has a forming female wax liquid cavity between the two forming female partition plates. The forming female output passage is distributed on the side wall of the forming female adapter mandrel sleeve. The forming female wax liquid passage is arranged on one of the forming female partition plates.

[0017] The forming female wax liquid passage is connected to the wax injection pipeline of the wax injection machine. After the wax liquid passes through the forming female wax liquid passage and the forming female wax liquid cavity, it is transported from the forming female output passage to the wax forming cavity.

[0018] The other forming female partition plate in the inner cavity of the forming female adapter mandrel sleeve has a forming female front end cavity between the forming female adapter mandrel sleeve end port. The forming end passage and the forming end orientation key groove are staggered arranged at the end port of the forming female adapter mandrel sleeve.

[0019] When the forming female mandrel and the forming male mandrel are combined, the forming male orientation key is adapted and shaped with the forming end orientation key groove and is connected as a whole. The forming male pulling flexible shaft is pushed inward, so that the forming radial passage and the forming end passage are aligned and connected. The forming male front clamping plate is exposed in the forming female front end cavity after passing through the forming radial passage and the forming end passage. After the forming male pulling flexible shaft is rotated by 90 degrees, the forming male pulling flexible shaft is pulled outward, and the forming male rear clamping plate is clamped on the outer end surface of the forming male positioning shaft shoulder, so that the forming male front clamping plate is in pressure contact with the inner end of the forming female front end cavity.

[0020] A forming lower mold is provided with a forming adaptive lower cavity channel matched with the lower part of the exhaust end taper when placed on the side; the forming lower mold is respectively provided with a forming male lower inner cavity and a forming female lower inner cavity; the forming male lower inner cavity and the forming female lower inner cavity are respectively connected with the corresponding end part of the forming adaptive lower cavity channel; the forming male lower inner cavity is used for accommodating the lower part of the forming male positioning shaft shoulder; the forming female lower inner cavity is used for accommodating the lower part of the forming female positioning shaft shoulder; the forming lower mold is provided with a forming positioning stopper, and a forming threaded hole is coaxially arranged on the forming positioning stopper;

[0021] The forming upper mold is provided with a forming adaptive upper cavity channel at the lower end surface, and the forming upper mold is respectively provided with a forming upper corresponding inner cavity at both ends of the forming adaptive upper cavity channel, and a forming matching positioning head and a forming connecting bolt are coaxially arranged on the forming upper mold;

[0022] The forming adaptive upper cavity channel and the forming adaptive lower cavity channel envelope the wax cavity of the outer lateral wall of the exhaust end taper, and the forming male lower inner cavity and the forming female lower inner cavity respectively envelope the corresponding forming male positioning shaft shoulder and the forming female positioning shaft shoulder;

[0023] The forming matching positioning head is inserted into the forming positioning stopper, and the forming connecting bolt is connected with the forming threaded hole;

[0024] The forming upper mold has an exhaust valve.

[0025] A wax injection machine device comprises a forming mold assembly; the wax injection machine prepares a wax mold piece of an exhaust end taper through the forming mold assembly;

[0026] A wax injection machine device comprises two core shafts variable-direction feeding belts arranged at 90 degrees; the two core shafts variable-direction feeding belts respectively place a forming male core shaft and a forming female core shaft;

[0027] The two core shafts variable-direction feeding belts are provided with a core shaft pairing station at the converging output end, and the forming male core shaft and the forming female core shaft are converged and paired into an integrated core mold at the core shaft pairing station; the core shaft output conveying belt is provided with an input end at the output end of the core shaft pairing station to convey the core mold;

[0028] The core shaft pairing station is provided with a core shaft pulling U-shaped fork head controlled by a mechanical hand; the core shaft pulling U-shaped fork head is inserted on the forming male pulling soft shaft and pulls out the forming male rear clamping plate and assists in fixing.

[0029] A wax injection machine device comprises a process preparation assembly line;

[0030] The process preparation assembly line comprises a process conveying belt; the process conveying belt is sequentially provided with a lower mold feeding station, a core shaft feeding station, an upper cover feeding station, a fixing station, a connecting station, a fastening and tapping machine, a wax injection station, a taking-out station and / or a group tree station;

[0031] A robotic arm is installed at the lower mold loading station to place the forming lower mold onto the process conveyor belt;

[0032] At the mandrel loading station, a robotic arm is installed to assemble the mandrel mold onto the forming lower mold;

[0033] At the top cover loading station, a top cover conveyor is provided to attach the assembled mandrel mold to the forming lower mold on the process conveyor belt. The forming mating positioning head is inserted into the forming positioning stop. The top cover conveyor includes a horizontally arranged top cover conveyor belt, a top cover dropping station at the output end of the top cover conveyor belt, a top cover pressing head above the top cover dropping station, a top cover swing opening and closing plate mating on the bearing surface of the top cover dropping station, and a top cover side guide limiting plate for dropping guidance below the top cover dropping station. The top cover pressing head is equipped with a suction nozzle or an electromagnet. At the fixed station, a pressing head is provided above the process conveyor belt to press the forming upper mold and the forming lower mold together. An upper ejector head is provided below the process conveyor belt to lift the process conveyor belt upward.

[0034] At the connection station, there is a robot and / or a fastening and tapping machine. The robot places the forming connection bolt into the forming upper mold, and the fastening and tapping machine connects the forming connection bolt to the forming threaded hole.

[0035] At the wax injection station, a wax injection machine is installed to inject liquid wax into the wax cavity of the forming mold assembly to form a wax mold.

[0036] At the removal station, a robotic arm is installed to open the cooled molding die assembly and remove the wax mold part;

[0037] At the tree assembly station, the wax model parts are assembled. Each layer of adjacent wax model parts is connected by an intermediate transition connecting sleeve to form a ring-shaped part. The intermediate transition connecting sleeve has a central through hole to facilitate the slurry application process.

[0038] A wax injection machine includes an intermediate transition connecting sleeve and an intermediate connecting center frame installed at the tree assembly station;

[0039] The intermediate connecting center frame is connected to an intermediate transition connecting sleeve via a crossbar;

[0040] At the tree assembly station, the wax model parts are assembled. Each layer of adjacent wax model parts is connected by an intermediate transition connecting sleeve to form a ring-shaped part. The intermediate transition connecting sleeve has a central through hole to facilitate the slurry application process.

[0041] An intermediate frame tail cone with an inner conical hole is provided on the top of the intermediate connecting center frame, and an intermediate frame lateral groove communicating with the inner conical hole is provided axially on the side wall of the intermediate frame tail cone.

[0042] A manipulator-operated manipulator arm is arranged above the tail cone of the intermediate frame, and a manipulator outer taper is arranged below the manipulator arm to match the inner taper hole;

[0043] A manipulator through hole is arranged on the manipulator outer taper;

[0044] A manipulator L hook is arranged at the lower end of the manipulator outer taper, and an intermediate frame inner cavity baffle is arranged in the tail cone of the intermediate frame. The manipulator L hook is rotated to be hooked with the intermediate frame inner cavity baffle, and the manipulator through hole corresponds to the intermediate frame lateral slot. A manipulator fixed pulling radial rod is arranged on the manipulator arm, and a manipulator insertion inclined wedge is arranged on the manipulator fixed pulling radial rod to be inserted into the manipulator through hole and the intermediate frame lateral slot.

[0045] A method for manufacturing an exhaust end cone by a forming mold assembly; the method comprises;

[0046] First, a forming male core shaft and a forming female core shaft are respectively inserted into and connected as an integrated core mold from both ends of the exhaust end cone curved inner cavity; then, the core mold is placed on a forming lower mold; secondly, after positioning and buckling the forming upper mold, it is fixed by a forming connecting bolt; thirdly, wax injection, shaping, mold removal, tree assembly and slurry dipping are sequentially performed.

[0047] As a further improvement of the above technical solution:

[0048] By means of a process conveyor belt; first, the manipulator places the forming lower mold on the process conveyor belt at the lower mold feeding station; then, the manipulator assembles the core mold on the forming lower mold at the core feeding station; secondly, the forming upper mold is installed on the forming lower mold on the upper cover feeding station by the opening and closing plate of the opening and closing head of the upper cover falling station; thirdly, the forming upper mold and the forming lower mold are pressed together by the pressing head at the fixing station, and the process conveyor belt is lifted upwards by the upper ejector; subsequently, the forming connecting bolt is placed on the forming upper mold by the manipulator at the connecting station, and the forming connecting bolt is connected with the forming threaded hole by the fastening and tapping machine; then, the wax liquid is transported into the wax cavity from the forming female output channel after the wax liquid passes through the forming female wax liquid passage and the forming female wax liquid cavity by the wax injection pipe of the wax injection machine at the wax injection station; next, the wax mold assembly is opened and the wax mold is taken out at the taking-out station after cooling; further, the wax mold is assembled at the tree assembly station, and the adjacent wax molds of each layer are connected by the intermediate transition connecting sleeve to form a ring-shaped part.

[0049] In the core shaft mold that the forming male core shaft and the forming female core shaft are inserted and connected as a whole from the exhaust end cone two ends of the bending inner cavity respectively, firstly, the forming female core shaft and the forming male core shaft are closed;Then, the forming male orientation key and the forming end orientation key groove are adapted and connected as a whole;Secondly, the inner push forming male pull soft shaft is made so that the forming radial channel and the forming end channel are aligned;Thirdly, the forming male front stop plate is exposed in the forming female front end cavity after passing through the forming radial channel and the forming end channel, the inner push forming male pull soft shaft is rotated 90 degrees, and the inner push forming male pull soft shaft is pulled outwards, and the forming male rear stop plate is clamped on the outer end surface of the forming male positioning shaft shoulder, so that the forming male front stop plate is in pressure contact with the inner end of the forming female front end cavity.

[0050] In the core shaft assembly process, firstly, the forming male core shaft and the forming female core shaft are sent to the core shaft assembly station through the core shaft direction changing feeding belt;Then, in the core shaft assembly station;Thirdly, in the core shaft assembly station, the core shaft output conveyor belt of the core shaft mold is conveyed to the core shaft feeding station by the mechanical hand on the core lower mold;

[0051] In the group tree process, firstly, in the group tree station, the wax mold piece is spliced into a ring shape through the intermediate transition connecting sleeve and installed on the intermediate connecting center frame;Secondly, the mechanical hand hook is rotated to be hooked with the inner cavity stop plate of the intermediate frame, and at the same time, the mechanical hand through hole corresponds to the lateral slot of the intermediate frame;Thirdly, the mechanical hand is inserted into the wedge to be inserted into the mechanical hand through hole and the lateral slot of the intermediate frame.

[0052] The present application has the advantages of reasonable design, low cost, durability, safety and reliability, simple operation, time and labor saving, cost saving, compact structure and convenient use. BRIEF DESCRIPTION OF DRAWINGS

[0053] Figure 1 It is the exhaust cone end and mold use structure schematic diagram of the present application.

[0054] Figure 2 It is the mold explosion structure schematic diagram of the present application.

[0055] Figure 3 It is the mold internal structure schematic diagram of the present application.

[0056] Figure 4 It is the mold partial structure schematic diagram of the present application.

[0057] Figure 5 It is the core shaft assembly feeding use structure schematic diagram of the present application.

[0058] Figure 6 It is the wax injection structure schematic diagram of the present application.

[0059] Figure 7 It is the process flow structure schematic diagram of the present application.

[0060] Figure 8 is a schematic diagram of the local structure of the present application.

[0061] Figure 9 is a schematic diagram of the group tree using structure of the present application.

[0062] Wherein: 1, exhaust end cone; 2, forming die assembly; 3, forming lower die; 4, forming adaptive lower cavity; 5, forming male lower inner cavity; 6, forming female lower inner cavity; 7, forming threaded hole; 8, forming positioning stop; 9, forming upper die; 10, forming adaptive upper cavity; 11, forming upper corresponding inner cavity; 12, forming matching positioning head; 13, forming connecting bolt; 14, forming male spindle; 15, forming male positioning shaft shoulder; 16, forming female spindle; 17, forming female positioning shaft shoulder; 18, forming male adaptive spindle sleeve; 19, forming female adaptive spindle sleeve; 20, forming male positioning plug; 21, forming male directional key; 22, forming male pulling flexible shaft; 23, forming male rear clamping plate; 24, forming male front clamping baffle; 25, forming radial channel; 26, forming radial center channel; 27, forming female baffle; 28, forming female front end cavity; 29, forming female wax liquid passage cavity; 30, forming female wax liquid passage; 31, forming female output passage; 32, forming end passage; 33, forming end directional key groove; 34, spindle direction-changing feeding belt; 35, spindle group matching station; 36, spindle output conveying belt; 37, spindle pulling U-shaped fork head; 38, process preparation assembly line; 39, upper cover feeding conveying equipment; 40, process conveying belt; 41, lower die feeding station; 42, spindle feeding station; 43, upper cover feeding station; 44, fixing station; 45, connecting station; 46, upper cover feeding conveying belt; 47, upper cover feeding falling station; 48, upper cover feeding opening and closing plate; 49, upper cover feeding side guide limiting plate; 50, upper cover feeding pressing head; 51, fastening and tapping machine; 52, wax injection station; 53, taking-out station; 54, group tree station; 55, wax mold; 56, intermediate transition connecting sleeve; 57, intermediate through hole; 58, intermediate connecting center frame; 59, intermediate frame tail cone; 60, intermediate frame lateral groove; 61, intermediate frame inner cavity baffle; 62, mechanical hand arm; 63, mechanical hand outer taper; 64, mechanical hand L-shaped hook; 65, mechanical hand through hole; 66, mechanical hand fixed pulling radial rod; 67, mechanical hand insertion inclined wedge. DETAILED DESCRIPTION

[0063] As shown in Figures 1-4 , the exhaust end cone of the present embodiment includes an exhaust end cone 1; the exhaust end cone 1 is a hollow structure with a curved body, and has a connecting port portion at both ends of the curved body;

[0064] The exhaust end cone 1 is supported by a casting process, which includes a forming die assembly 2.

[0065] The mold of the exhaust end cone of the present embodiment comprises a forming mold assembly 2 for casting the exhaust end cone;

[0066] The forming mold assembly 2 comprises a forming lower mold 3, a forming core assembly and a forming upper mold 9;

[0067] The forming core assembly comprises a detachably connected forming male core 14 and a forming female core 16;

[0068] The forming male core 14 and the forming female core 16 are respectively inserted into and connected as one from both ends of the curved inner cavity of the exhaust end cone 1;

[0069] A forming male positioning shaft shoulder 15 is arranged at the outer end of the forming male core 14, the forming male core 14 has a hollow forming male adapter core sleeve 18, and the end of the forming male adapter core sleeve 18 is connected with the forming male positioning shaft shoulder 15;

[0070] A forming male positioning plug 20 with a forming radial center passage 26 vertically exposed at the center of the end of the forming male adapter core sleeve 18 is arranged on the forming male positioning plug 20, a forming male orientation key 21 is arranged on the forming male positioning plug 20, a forming radial passage 25 with a long slot cross section is communicated on the forming radial center passage 26 and the forming male adapter core sleeve 18, a forming male front clamping plate 24 is axially movably arranged in the forming radial passage 25, a forming male pulling flexible shaft 22 is connected at the rear end of the forming male front clamping plate 24, the forming male pulling flexible shaft 22 is exposed after passing through the inner cavity of the forming male adapter core sleeve 18, and a forming male rear clamping plate 23 is arranged at the exposed end of the forming male pulling flexible shaft 22; a limiting plate for preventing the forming male front clamping plate 24 from being pulled out is arranged at the rear end of the forming radial center passage 26; a fastener is arranged on the forming male pulling flexible shaft 22;

[0071] A forming female positioning shaft shoulder 17 is arranged at the outer end of the forming female core 16, the forming female core 16 has a hollow forming female adapter core sleeve 19, and the end of the forming female adapter core sleeve 19 is connected with the forming female positioning shaft shoulder 17;

[0072] Two forming female partition plates 27 are arranged in the inner cavity of the forming female adapter core sleeve 19, and a forming female wax liquid passage body 29 is arranged between the two forming female partition plates 27 in the inner cavity of the forming female adapter core sleeve 19; forming female output passages 31 are distributed on the side wall of the forming female adapter core sleeve 19, and a forming female wax liquid passage 30 is installed on one of the forming female partition plates 27;

[0073] The forming female wax liquid passage 30 is connected with a wax injection pipeline of a wax injection machine, and the wax liquid is transported from the forming female output passage 31 into a wax type cavity after passing through the forming female wax liquid passage 30 and the forming female wax liquid passage body 29;

[0074] Another forming female partition plate 27 is arranged in the inner cavity of the forming female adapter mandrel sleeve 19, and has a forming female front end cavity 28 between the forming female adapter mandrel sleeve 19 and the end opening of the forming female adapter mandrel sleeve 19; a forming end channel 32 and a forming end directional key groove 33 are staggered arranged at the end opening of the forming female adapter mandrel sleeve 19;

[0075] When the forming female mandrel 16 and the forming male mandrel 14 are combined, the forming male directional key 21 is adapted and shaped with the forming end directional key groove 33 and is connected as a whole; the inner pushing forming male pulling soft shaft 22 is pushed inwards, so that the forming radial channel 25 and the forming end channel 32 are aligned and communicated; the forming male front clamping baffle 24 is exposed in the forming female front end cavity 28 after passing through the forming radial channel 25 and the forming end channel 32; after the inner pushing forming male pulling soft shaft 22 is rotated by 90 degrees, the inner pushing forming male pulling soft shaft 22 is pulled outwards, and the forming male rear clamping plate 23 is clamped on the outer end surface of the forming male positioning shaft shoulder 15, so that the forming male front clamping baffle 24 is in pressure contact with the inner end of the forming female front end cavity 28;

[0076] A forming adapter lower cavity 4 is arranged on the forming lower mold 3 and is adapted to the lower part of the exhaust end cone 1 when placed on the side; a forming male lower inner cavity 5 and a forming female lower inner cavity 6 are respectively arranged on the forming lower mold 3; the forming male lower inner cavity 5 and the forming female lower inner cavity 6 are respectively connected with the corresponding end of the forming adapter lower cavity 4; the forming male lower inner cavity 5 is used for accommodating the lower part of the forming male positioning shaft shoulder 15; the forming female lower inner cavity 6 is used for accommodating the lower part of the forming female positioning shaft shoulder 17; a forming positioning stop 8 is arranged on the forming lower mold 3, and a forming threaded hole 7 is coaxially arranged on the forming positioning stop 8;

[0077] A forming adapter upper cavity 10 is arranged on the lower end surface of the forming upper mold 9, forming upper corresponding inner cavities 11 are respectively arranged at both ends of the forming adapter upper cavity 10, and a forming counter positioning head 12 and a forming connecting bolt 13 are coaxially arranged on the forming upper mold 9;

[0078] The forming adapter upper cavity 10 and the forming adapter lower cavity 4 are combined to envelop the wax cavity of the outer side wall of the exhaust end cone 1, and the forming male lower inner cavity 5 and the forming female lower inner cavity 6 are respectively combined with the corresponding forming male positioning shaft shoulder 15 and the forming female positioning shaft shoulder 17;

[0079] The forming counter positioning head 12 is inserted into the forming positioning stop 8, and the forming connecting bolt 13 is connected with the forming threaded hole 7;

[0080] The forming upper mold 9 has an exhaust valve.

[0081] The method of the embodiment is used for manufacturing the exhaust end cone 1 through the forming mold assembly 2; the method comprises the following steps:

[0082] Firstly, the shaped male core shaft 14 and the shaped female core shaft 16 are respectively inserted into and connected as a whole from the two ends of the bent inner cavity of the exhaust end cone 1; then, the core shaft mold is placed on the shaped lower mold 3; secondly, after the shaped upper mold 9 is positioned and buckled, it is fixed through the shaped connecting bolt 13; thirdly, the wax injection, shaping, mold taking, tree assembling and slurry dipping are sequentially performed.

[0083] As Figures 1-9 , the wax injection machine equipment of the embodiment includes a shaped mold assembly 2; the wax injection machine prepares the wax mold piece 55 of the exhaust end cone 1 through the shaped mold assembly 2; the equipment further includes two core shaft change direction feeding belts 34 arranged at 90 degrees; the two core shaft change direction feeding belts 34 respectively place the shaped male core shaft 14 and the shaped female core shaft 16;

[0084] The core shaft assembly station 35 is arranged at the gathering output end of the two core shaft change direction feeding belts 34, and the shaped male core shaft 14 and the shaped female core shaft 16 are assembled and paired as a whole at the core shaft assembly station 35; the input end of the core shaft output conveying belt 36 is arranged at the output end of the core shaft assembly station 35 to convey the core shaft mold;

[0085] The core shaft pulling U-shaped fork head 37 controlled by the mechanical hand is arranged at the core shaft assembly station 35; the core shaft pulling U-shaped fork head 37 is inserted on the shaped male pulling soft shaft 22 and pulls out the shaped male rear clamping plate 23 and assists in fixing.

[0086] The wax injection machine equipment of the embodiment includes a process preparation assembly line 38;

[0087] The process preparation assembly line 38 includes a process conveying belt 40; the lower mold feeding station 41, the core shaft feeding station 42, the upper cover feeding station 43, the fixing station 44, the connecting station 45, the wax injection station 52, the taking-out station 53 and / or the tree assembling station 54 are sequentially arranged on the process conveying belt 40;

[0088] The mechanical hand is arranged at the lower mold feeding station 41 to place the shaped lower mold 3 on the process conveying belt 40;

[0089] The mechanical hand is arranged at the core shaft feeding station 42 to assemble the core shaft mold on the shaped lower mold 3;

[0090] At the upper cover feeding station 43, a feeding device 39 is arranged to feed the assembled mandrel mold cover to the forming lower mold 3 on the process conveying belt 40, and the forming counterpart positioning head 12 is inserted into the forming positioning stop 8; the feeding device 39 includes a transversely arranged feeding belt 46, a feeding drop station 47 is arranged at the output end of the feeding belt 46, a feeding pressing head 50 is arranged above the feeding drop station 47, a feeding swing opening and closing plate 48 is arranged opposite to the feeding surface of the feeding drop station 47, and a drop guiding feeding side limiting plate 49 is arranged below the feeding drop station 47; the feeding pressing head 50 is provided with a suction nozzle or an electromagnet; at the fixed station 44, a pressing head is arranged above the process conveying belt 40 to press the forming upper mold 9 and the forming lower mold 3 into one body; an upper ejector head is arranged below the process conveying belt 40 to lift the process conveying belt 40 upward;

[0091] At the connecting station 45, a mechanical hand and / or a fastening and tapping machine 51 are arranged, the mechanical hand puts the forming connecting bolt 13 into the forming upper mold 9, and the fastening and tapping machine 51 connects the forming connecting bolt 13 with the forming threaded hole 7;

[0092] At the wax injection station 52, a wax injection machine is arranged to inject liquid wax into the wax mold cavity of the forming mold assembly 2 to form a wax mold piece 55;

[0093] At the taking-out station 53, a mechanical hand is arranged to open the cooled forming mold assembly 2 and take out the wax mold piece 55;

[0094] At the tree assembling station 54, the wax mold pieces 55 are assembled into a tree, adjacent wax mold pieces 55 in each layer are connected by an intermediate transition connecting sleeve 56 to form a ring-shaped piece, and intermediate through holes 57 are distributed on the intermediate transition connecting sleeve 56 for slurry dipping;

[0095] The wax injection machine device of the embodiment includes the intermediate transition connecting sleeve 56 and an intermediate connecting center frame 58 arranged at the tree assembling station 54;

[0096] The intermediate connecting center frame 58 is connected with the intermediate transition connecting sleeve 56 through a cross rod;

[0097] At the tree assembling station 54, the wax mold pieces 55 are assembled into a tree, adjacent wax mold pieces 55 in each layer are connected by an intermediate transition connecting sleeve 56 to form a ring-shaped piece, and intermediate through holes 57 are distributed on the intermediate transition connecting sleeve 56 for slurry dipping;

[0098] The intermediate connecting center frame 58 is connected with the intermediate transition connecting sleeve 56 through a cross rod;

[0099] A manipulator arm 62 is arranged above the tail cone 59 of the middle frame, and a manipulator outer taper 63 is arranged below the manipulator arm 62 to match the inner taper hole;

[0100] A manipulator through hole 65 is arranged on the manipulator outer taper 63;

[0101] A manipulator L hook 64 is arranged at the lower end of the manipulator outer taper 63, and a middle frame inner cavity baffle 61 is arranged in the tail cone 59 of the middle frame. The manipulator L hook 64 is rotated to hook with the middle frame inner cavity baffle 61, and at the same time, the manipulator through hole 65 corresponds to the middle frame lateral slot 60. A manipulator fixed pulling radial rod 66 is arranged on the manipulator arm 62, and a manipulator insertion inclined wedge 67 is arranged on the manipulator fixed pulling radial rod 66 to be inserted into the manipulator through hole 65 and the middle frame lateral slot 60.

[0102] By means of the process conveying belt 40, first, the manipulator places the forming lower mold 3 on the process conveying belt 40 at the lower mold feeding station 41; then, the manipulator arranges the mandrel mold set on the forming lower mold 3 at the mandrel feeding station 42; secondly, the cover feeding lower drop head 50 drops the forming upper mold 9 to open the cover feeding lower swing opening and closing plate 48, and installs the forming upper mold 9 on the forming lower mold 3 at the upper cover feeding station 43; thirdly, at the fixing station 44, the drop head presses the forming upper mold 9 and the forming lower mold 3 to be integrated, and at the same time, the upper ejector rod lifts the process conveying belt 40 upward; subsequently, at the connecting station 45, the manipulator puts the forming connecting bolt 13 into the forming upper mold 9, and the fastening tapping machine 51 connects the forming connecting bolt 13 with the forming threaded hole 7; then, at the wax injection station 52, the wax injection machine injects the wax liquid through the forming mother wax liquid passage 30 and the forming mother wax liquid cavity 29, and then the wax liquid is transported from the forming mother output passage 31 to the wax forming cavity; next, at the taking-out station 53, the cooled forming mold assembly 2 is opened and the wax mold piece 55 is taken out; further, at the tree assembling station 54, the wax mold piece 55 is assembled, and adjacent wax mold pieces 55 in each layer are connected by the intermediate transition connecting sleeve 56 to form a ring-shaped piece.

[0103] In the core mold, the male core 14 and the female core 16 are inserted into the two ends of the curved inner cavity of the exhaust end cone 1 and connected as a whole. First, the female core 16 and the male core 14 are matched; then, the male directional key 21 is adapted and connected with the female end directional key groove 33; secondly, the male inner push core pulling soft shaft 22 is pushed, so that the male radial channel 25 and the female end channel 32 are aligned and connected; thirdly, the male front clamping plate 24 is exposed in the female front end cavity 28 after passing through the male radial channel 25 and the female end channel 32, and the male inner push core pulling soft shaft 22 is rotated by 90 degrees and then pulled outward, and the male rear clamping plate 23 is clamped on the outer end surface of the male positioning shaft shoulder 15, so that the male front clamping plate 24 is in pressure contact with the inner end of the female front end cavity 28.

[0104] In the core assembly process, first, the male core 14 and the female core 16 are sent to the core assembly station 35 through the core reversing feeding belt 34; then, in the core assembly station 35; thirdly, in the core assembly station 35, the core output conveying belt 36 conveys the core mold to the mechanical hand of the core loading station 42 on the lower mold 3;

[0105] In the assembly tree process, first, in the assembly tree station 54, the wax mold piece 55 is spliced into a ring shape through the intermediate transition connecting sleeve 56 and installed on the intermediate connecting center frame 58; secondly, the mechanical hand L hook 64 is rotated to hook with the intermediate frame inner cavity baffle 61, and at the same time, the mechanical hand through hole 65 corresponds to the intermediate frame lateral slot 60; thirdly, the mechanical hand inserts the inclined wedge 67 to insert into the mechanical hand through hole 65 and the intermediate frame lateral slot 60.

[0106] The application designs a new exhaust end taper 1 matched forming die assembly 2, a forming lower die 3, which has good cooperation, convenient forming, and forms a lower cavity 4, a male lower inner cavity 5, a female lower inner cavity 6, a threaded hole 7, a positioning stop 8, a forming upper die 9, an upper cavity 10, an upper corresponding inner cavity 11, a matching positioning head 12, a connecting bolt 13, a male core shaft 14, a male positioning shaft shoulder 15, a female core shaft 16, a female positioning shaft shoulder 17, a male matching core shaft sleeve 18, a female matching core shaft sleeve 19, a male positioning plug 20, a male directional key 21, a male pulling flexible shaft 22, a male rear clamping plate 23, a male front clamping plate 24, a female partition plate 27, a female front end cavity 28, a female wax liquid cavity 29, a female wax liquid channel 30, a female output channel 31, an end channel 32, and an end directional key groove 33, which realize the feeding of liquid wax and the smooth and uniform exhaust of exhaust gas. The application realizes positioning shaft shoulders, which can be fixed and installed core shafts, and facilitates the formation of a sealed space.

[0107] The application realizes positioning shaft shoulders, which can be fixed and installed core shafts, and facilitates the formation of a sealed space. The application realizes positioning shaft shoulders, which can be fixed and installed core shafts, and facilitates the formation of a sealed space. The application realizes positioning shaft shoulders, which can be fixed and installed core shafts, and facilitates the formation of a sealed space.

Claims

1. A wax jet machine apparatus, characterized by: The assembly includes a process preparation pipeline (38) and a wax injection machine device; The manufactured exhaust end cone (1) is a hollow structure having a curved body with connecting port portions at both ends of the curved body; The exhaust end cone (1) is manufactured by a casting process, which includes a forming mold assembly (2) for casting the exhaust end cone; The forming mold assembly (2) includes a forming lower mold (3), a forming core assembly, and a forming upper mold (9); The forming core assembly includes a forming male core (14) and a forming female core (16) which are detachably connected at the ends; The forming male core (14) and the forming female core (16) are respectively inserted into and connected as one body with the core mold at both ends of the curved inner cavity of the exhaust end cone (1); A forming male positioning shaft shoulder (15) is arranged at the outer end of the forming male core (14), the forming male core (14) has a hollow forming male adapter core sleeve (18), and the end of the forming male adapter core sleeve (18) is connected with the forming male positioning shaft shoulder (15); A forming male positioning plug (20) with a forming radial center passage (26) vertically exposed at the center of the end of the forming male adapter core sleeve (18) is arranged on the forming male positioning plug (20), a forming male directional key (21) is arranged on the forming male positioning plug (20), a forming radial passage (25) with a long slot cross section is communicated on the forming radial center passage (26) and the forming male adapter core sleeve (18), a forming male front clamping plate (24) is axially movably arranged in the forming radial passage (25), a forming male pulling flexible shaft (22) is connected at the rear end of the forming male front clamping plate (24), the forming male pulling flexible shaft (22) is exposed after passing through the inner cavity of the forming male adapter core sleeve (18), a forming male rear clamping plate (23) is arranged at the exposed end of the forming male pulling flexible shaft (22), a limiting plate is arranged at the rear end of the forming radial center passage (26) to prevent the forming male front clamping plate (24) from being pulled out, and a fastener is arranged on the forming male pulling flexible shaft (22); A forming female positioning shaft shoulder (17) is arranged at the outer end of the forming female core (16), the forming female core (16) has a hollow forming female adapter core sleeve (19), and the end of the forming female adapter core sleeve (19) is connected with the forming female positioning shaft shoulder (17); Two forming female partition plates (27) are arranged in the inner cavity of the forming female adapter core sleeve (19), and a forming female wax liquid passage body (29) is arranged between the two forming female partition plates (27) in the inner cavity of the forming female adapter core sleeve (19); a forming female output passage (31) is distributed on the side wall of the forming female adapter core sleeve (19), and a forming female wax liquid passage (30) is mounted on one of the forming female partition plates (27); The forming female wax liquid passage (30) is connected with the wax injection pipeline of the wax injection machine, and the wax liquid passes through the forming female wax liquid passage (30) and the forming female wax liquid passage body (29) and is then transported from the forming female output passage (31) to the wax forming cavity. The other forming female partition plate (27) in the inner cavity of the forming female adapter mandrel sleeve (19) has a forming female front end cavity (28) between the end opening of the forming female adapter mandrel sleeve (19); the end opening of the forming female adapter mandrel sleeve (19) is staggered with a forming end channel (32) and a forming end directional key groove (33); When the forming female mandrel (16) and the forming male mandrel (14) are combined, the forming male directional key (21) is adapted and shaped with the forming end directional key groove (33) and is connected as a whole; the inner pushing forming male pulling soft shaft (22) is pushed, so that the forming radial channel (25) and the forming end channel (32) are aligned and communicated; the forming male front clamping baffle (24) is exposed in the forming female front end cavity (28) after passing through the forming radial channel (25) and the forming end channel (32), the inner pushing forming male pulling soft shaft (22) is rotated by 90 degrees, then the inner pushing forming male pulling soft shaft (22) is pulled outward, and the forming male rear clamping plate (23) is clamped on the outer end surface of the forming male positioning shaft shoulder (15), so that the forming male front clamping baffle (24) is in pressure contact with the inner end of the forming female front end cavity (28); The forming lower mold (3) is provided with a forming adapter lower cavity (4) adapted to the lower part of the exhaust end taper (1) when placed on the side; the forming lower mold (3) is respectively provided with a forming male lower inner cavity (5) and a forming female lower inner cavity (6); the forming male lower inner cavity (5) and the forming female lower inner cavity (6) are respectively connected with the corresponding end of the forming adapter lower cavity (4); the forming male lower inner cavity (5) is used for accommodating the lower part of the forming male positioning shaft shoulder (15); the forming female lower inner cavity (6) is used for accommodating the lower part of the forming female positioning shaft shoulder (17); the forming positioning stop (8) is distributed on the forming lower mold (3), and the forming threaded hole (7) is coaxially arranged on the forming positioning stop (8); The forming upper mold (9) has a forming adapter upper cavity (10) at the lower end surface, and the forming adapter upper cavity (10) is respectively provided with a forming upper corresponding inner cavity (11) at both ends; the forming counter positioning head (12) and the forming connecting bolt (13) are coaxially arranged on the forming upper mold (9); The forming adapter upper cavity (10) and the forming adapter lower cavity (4) jointly envelope the wax cavity of the outer side wall of the exhaust end taper (1), and the forming male lower inner cavity (5) and the forming female lower inner cavity (6) are respectively jointly enveloped with the corresponding forming male positioning shaft shoulder (15) and the forming female positioning shaft shoulder (17) of the corresponding forming upper corresponding inner cavity (11); The forming counter positioning head (12) is inserted into the forming positioning stop (8), and the forming connecting bolt (13) is connected with the forming threaded hole (7); The forming upper mold (9) has an exhaust valve; The process preparation assembly line (38) comprises a process conveying belt (40); the process conveying belt (40) is sequentially distributed with a lower mold feeding station (41), a mandrel feeding station (42), an upper cover feeding station (43), a fixing station (44), a connecting station (45), a fastening and tapping machine (51), a wax injection station (52), a taking-out station (53) and a group tree station (54). A mechanical hand is arranged at the lower mold feeding station (41) to place the lower mold (3) on the process conveying belt (40); A mechanical hand is arranged at the mandrel feeding station (42) to arrange the mandrel mold set on the lower mold (3); A cover feeding conveying device (39) is arranged at the cover feeding station (43) to fit the assembled mandrel mold cover on the lower mold (3) on the process conveying belt (40), and the forming counterpart positioning head (12) is inserted into the forming positioning stop (8); the cover feeding conveying device (39) comprises a transversely arranged cover feeding conveying belt (46), a cover feeding falling station (47) is arranged at the output end of the cover feeding conveying belt (46), a cover feeding pressing head (50) is arranged above the cover feeding falling station (47), and a cover feeding falling opening and closing plate (48) is arranged opposite to the bearing surface of the cover feeding falling station (47), A pressing head is arranged above the process conveying belt (40) at the fixing station (44) to press the upper mold (9) and the lower mold (3) into one body; An upper lifting head is arranged below the process conveying belt (40) to lift the process conveying belt (40) upward; A mechanical hand and / or a fastening tapping machine (51) are arranged at the connecting station (45); A wax injection machine is arranged at the wax injection station (52) to inject liquid wax into the wax mold cavity of the forming mold assembly (2) to form a wax mold piece (55); A mechanical hand is arranged at the taking-out station (53) to open the cooled forming mold assembly (2) and take out the wax mold piece (55); The wax mold piece (55) is assembled at the assembly station (54), adjacent wax mold pieces (55) in each layer are connected through intermediate transition connecting sleeves (56) to form a ring-shaped piece, intermediate through holes (57) are distributed on the intermediate transition connecting sleeves (56) to facilitate the slurry dipping process; The components of the wax injection machine device include the intermediate transition connecting sleeves (56) and the intermediate connecting center frame (58) arranged at the assembly station (54); The intermediate connecting center frame (58) is connected with the intermediate transition connecting sleeves (56) through a cross rod; The wax mold piece (55) is assembled at the assembly station (54), adjacent wax mold pieces (55) in each layer are connected through intermediate transition connecting sleeves (56) to form a ring-shaped piece, intermediate through holes (57) are distributed on the intermediate transition connecting sleeves (56) to facilitate the slurry dipping process.

2. The wax injection machine apparatus of claim 1, wherein: A falling guide cover feeding side guide limiting plate (49) is arranged below the cover feeding falling station (47); the cover feeding pressing head (50) is provided with a suction nozzle or an electromagnet; The mechanical hand places the forming connecting bolt (13) on the upper mold (9), and the fastening tapping machine (51) connects the forming connecting bolt (13) with the forming threaded hole (7).

3. The wax injection machine apparatus of claim 1, wherein: An intermediate frame tail cone (59) with an inner taper hole is arranged on the top of the intermediate connecting center frame (58), and an intermediate frame lateral groove (60) in communication with the inner taper hole is arranged axially on the side wall of the intermediate frame tail cone (59); A manipulator arm (62) is arranged above the tail cone (59) of the intermediate frame, and a manipulator outer taper (63) is arranged below the manipulator arm (62) to be matched with the inner taper hole; A manipulator through hole (65) is arranged on the manipulator outer taper (63); A manipulator L hook (64) is arranged at the lower end of the manipulator outer taper (63), and an intermediate frame inner cavity baffle (61) is arranged in the tail cone (59) of the intermediate frame. The manipulator L hook (64) is rotated to be hooked with the intermediate frame inner cavity baffle (61), and meanwhile, the manipulator through hole (65) corresponds to the intermediate frame lateral slot (60). A manipulator fixed pulling radial rod (66) is arranged on the manipulator arm (62), and a manipulator insertion inclined wedge (67) is arranged on the manipulator fixed pulling radial rod (66) to be inserted into the manipulator through hole (65) and the intermediate frame lateral slot (60).

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