A precision positioning investment mold and riser welding device

Abstract

The present invention relates to the field of investment wax technology, specifically to a precisely positioned investment wax and riser welding device, comprising a workbench and a belt arranged on the workbench, a track group being arranged on the workbench, a welding table being arranged on the workbench, a pulley one being arranged on the workbench, the belt being connected to the workbench through the belt, a driving motor being connected to the pulley one, and the driving motor being arranged on the workbench; and further comprising: a positioning mechanism, the positioning mechanism being arranged on the track group. This precisely positioned investment wax and riser welding device, through the cooperation of the arranged reciprocating reversing mechanism and the smearing mechanism, applies adhesive hot wax between the investment wax and the riser, to avoid the hot wax dripping onto the workers due to improper operation, and through the arranged jet mechanism, after the investment wax and the riser are bonded, the jet mechanism is used to blow compressed air to the surfaces of the investment wax and the riser, to blow away the wax fragments on the surfaces, to avoid the wax fragments affecting subsequent film formation.

Description

Technical Field

[0001] The invention relates to the technical field of investment mold, in particular to a precisely positioned investment mold and riser welding device. Background Art

[0002] Riser refers to the cavity in the mold that stores molten metal for shrinkage feeding castings, and also refers to the metal filled in the cavity. Its main function is to feed shrinkage and prevent shrinkage cavities and shrinkage in castings. It also has the function of venting and gathering slag. The design of the riser should follow certain principles. For example, the solidification time of the riser should be greater than the solidification time of the part of the casting to be fed. The position of the riser should be above or beside the hot node of the casting, and try to be located at the highest and thickest part of the casting.

[0003] At present, the riser bonding is done manually by visual inspection. A reference point is selected and visually observed to be perpendicular to the tabletop. This means that the riser bonding is considered to be vertical. This method is not only time-consuming, but also causes the riser of the investment mold assembly to be easily skewed due to visual errors. If not discovered in time, poor process consistency after pouring will have an impact later. For this reason, we propose a precision-positioned investment mold and riser welding device. Summary of the invention

[0004] A technical problem to be solved by the present application is: how to position the investment mold and the riser and bond them together.

[0005] In order to solve the above technical problems, the embodiment of the present application provides a precisely positioned investment mold and riser welding device, comprising a workbench and a belt arranged on the workbench, the workbench is provided with a track group, the workbench is provided with a welding table, the workbench is provided with a pulley 1, the belt is connected to the workbench through the pulley 1, the pulley 1 is connected to a drive motor, and the drive motor is arranged on the workbench;

[0006] Also included are:

[0007] A positioning mechanism, wherein the positioning mechanism is arranged on the track group, and the investment mold and the riser are placed on the positioning mechanism and move along the track of the track group;

[0008] A reciprocating reversing mechanism, wherein the reciprocating reversing mechanism is arranged on a workbench;

[0009] The coating mechanism is arranged on the reciprocating switching mechanism, and the reciprocating switching mechanism cooperates with the coating mechanism to make the coating mechanism reciprocate and rise, and when it descends to between the investment mold and the riser, the connection between them is coated;

[0010] The jet mechanism is arranged on the workbench and is used to blow air to the surface of the welded mold.

[0011] In some embodiments, the reciprocating reversing mechanism includes a second mounting frame, the second mounting frame is arranged on a workbench, a vertical pole four is rotatably arranged on the second mounting frame, the lower end of the vertical pole four is connected to a pulley one, a connecting gear three is arranged on the vertical pole four, a vertical pole seven is rotatably arranged on the second mounting frame, a connecting gear five is arranged on the vertical pole seven, the connecting gear five is engaged with the connecting gear three, a vertical pole six is ​​arranged on the second mounting frame, a connecting gear four is arranged on the vertical pole six, a pulley two is arranged on the vertical pole six, a toothed belt is arranged on the pulley two, and a switching component is arranged on the second mounting frame.

[0012] In some embodiments, the switching assembly includes a vertical pole five, the vertical pole five is arranged on a second mounting frame, the second mounting frame is sleeved with a sleeve, the vertical pole five is connected to the second mounting frame through the sleeve, the sleeve is provided with a forward linkage gear, the sleeve is provided with a forward linkage bevel gear, the vertical pole five is provided with a reverse linkage gear, the vertical pole five is provided with a reverse linkage bevel gear, the second mounting frame is rotatably provided with a connecting bevel gear, the connecting bevel gear is simultaneously connected to the reverse linkage bevel gear and the forward linkage bevel gear, and the vertical pole seven is provided with missing gears at both ends, and the missing gears are respectively engaged with the reverse linkage gear and the forward linkage gear.

[0013] In some embodiments, the smear mechanism includes a smear box, a screw is provided on the smear box, the screw is slidably arranged on the second mounting frame, the smear box is connected to the second mounting frame through the screw, the second mounting frame is rotatably provided with an adjusting gear, the adjusting gear and the screw are threadedly connected, the screw is a hollow structure and is connected to the smear box, a conduit is provided on the screw, and the screw is connected to a feed pump through the conduit, a plurality of holes are provided on both sides of the smear box, a hole plate is slidably arranged in the smear box, a plurality of holes are provided on the hole plate, a return spring 1 is provided between the smear box and the hole plate, an inclined block 1 is provided on the hole plate, an L-shaped rod is slidably arranged on both sides of the smear box, a return spring 2 is provided between the L-shaped rod and the smear box, an inclined surface parallel to the inclined surface of the first inclined surface is provided at one end of the L-shaped rod, and an inclined surface is provided at the other end of the L-shaped rod, a plurality of extension plates are provided on the second mounting frame, the extension plates are located on both sides of the smear box, an inclined block 2 is provided on the extension plate, and the inclined block 2 is parallel to the inclined surface of the other end of the L-shaped rod.

[0014] In some embodiments, the jet mechanism includes a first mounting frame, a vertical pole 1 is rotatably arranged on the first mounting frame, a lower end of the vertical pole is arranged on a pulley 1, an acceleration gear 1 is arranged on the vertical pole 1, a vertical pole 2 is arranged on the first mounting frame, an acceleration gear 2 is arranged on the vertical pole 2, the acceleration gear 2 is connected to the acceleration gear 1, a connecting gear 1 is arranged on the vertical pole 2, a vertical pole 3 is arranged on the first mounting frame, a connecting gear 2 is arranged on the vertical pole 3, the connecting gear 2 is meshed with the connecting gear 1, a rotating disk is arranged on the upper end of the vertical pole 3, a connecting rod is arranged at a non-center position on the rotating disk, the rotating disk is connected to a mounting cylinder through the connecting rod, and an exhaust duct is arranged on the mounting cylinder.

[0015] In some embodiments, a piston plate is slidably disposed in the mounting cylinder, a piston rod is disposed on the piston plate, the piston rod is slidably disposed on the mounting cylinder, the piston rod is connected to a connecting rod, the mounting cylinder is connected to the connecting rod through the piston rod, two air ports are disposed on the mounting cylinder, a one-way valve is disposed in the air ports, the one-way valves are disposed in opposite directions, and the exhaust duct is connected to one of the air ports.

[0016] In some embodiments, the track group includes an annular track, the annular track is arranged on a workbench, a merging track is arranged on the workbench, a separating track is arranged on the workbench, and a connecting track is arranged between the separating track and the merging track.

[0017] In some embodiments, the positioning mechanism includes a fixed seat, which is slidably set on a circular track, the fixed seat is connected to a belt, a slide rail is set on the fixed seat, a rotating table is slidably set on the fixed seat through the slide rail, a rotating seat is set on the lower surface of the rotating table, and a movable seat is rotatably set on the rotating table through the rotating seat, pulleys are set on both sides of the movable seat and the fixed seat, the fixed seat is slidably connected to the circular track through the pulley, the movable seat is slidably set on the merging track through the pulley, a mold placing table is set on the fixed seat, a riser table is set on the rotating table, and a plurality of limiting columns are set on the mold placing table and the riser table.

[0018] In some embodiments, the limiting columns are arranged on the upper surface of the investment wax placing table near both sides, and the limiting columns are arranged on the upper surface of the riser table near both sides. The investment wax placing table and the riser table are both made of aluminum, and the interior of the riser table is a hollow structure.

[0019] The present invention has at least the following beneficial effects:

[0020] 1. Different from the existing structure, in actual use, the positioning mechanism is set to solve the problem of riser misalignment during manual riser assembly. The positioning mechanism ensures the consistency of the process, avoids the need to limit the number of people to assemble the riser due to differences in assembling the riser, and improves production efficiency.

[0021] 2. Different from the existing structure, in actual use, the reciprocating reversing mechanism and the coating mechanism are used to apply the adhesive hot wax between the investment mold and the riser, so as to avoid the hot wax dripping on the staff due to improper operation when the staff manually applies it.

[0022] 3. Different from the existing structure, after the investment mold and the riser are bonded, compressed air can be blown to the surface of the investment mold and the riser through the jet mechanism to blow away the wax fragments on the surface, thereby preventing the wax fragments from affecting subsequent film formation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 Another perspective structural diagram;

[0025] Figure 3 It is a schematic diagram of the track group structure of the present invention;

[0026] Figure 4 It is a schematic diagram of the positioning mechanism structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the mobile seat of the present invention;

[0028] Figure 6 This is a schematic diagram of the belt connection structure of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the jet mechanism of the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the reciprocating reversing mechanism of the present invention;

[0031] Fig. 9 For the present invention Figure 8 The enlarged structural diagram at A in the middle;

[0032] Fig.10 It is a schematic diagram of the structure of the coating mechanism of the present invention;

[0033] Fig.11 For the present invention Fig.10 Enlarged structural diagram at B in the middle.

[0034] In the figure: 1, workbench; 2, track group; 21, circular track; 22, merge track; 221, separate track; 222, connect track; 3, belt; 31, pulley 1; 4, positioning mechanism; 41, fixed seat; 411, slide rail; 42, moving seat; 421, rotating table; 422, rotating seat; 43, pulley; 44, mold placement table; 441, limiting column; 45, riser table; 5, driving motor; 6, jet mechanism; 61, first mounting frame; 62, vertical pole 1; 621, acceleration gear 1; 63, vertical pole 2; 631, acceleration gear 2; 632, connecting gear 1; 64, vertical pole 3; 641, connecting gear 2; 65, mounting cylinder; 651, piston rod; 652, piston plate; 653, air port; 654, one-way valve; 66, rotating disk; 661, connecting rod; 6 7. Exhaust duct; 7. Reciprocating reversing mechanism; 71. Second mounting frame; 72. Vertical pole four; 721. Connecting gear three; 73. Switching assembly; 731. Vertical pole five; 732. Sleeve; 733. Forward linkage gear; 734. Reverse linkage gear; 735. Forward linkage bevel gear; 736. Reverse linkage bevel gear; 737. Connecting bevel gear; 738. Missing gear; 74. Toothed belt; 741. Pulley two; 75. Vertical pole six; 751. Connecting gear four; 76. Vertical pole seven; 761. Connecting gear five; 8. Applying mechanism; 81. Applying box; 82. Orifice plate; 821. Reset spring one; 822. Bevel block one; 83. Extension plate; 831. Bevel block two; 84. L-shaped rod; 841. Reset spring two; 85. Adjusting gear; 86. Screw; 861. Conduit; 9. Welding table. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-11The present invention provides a technical solution: a precisely positioned molten mold and riser welding device, comprising a workbench 1 and a belt 3 arranged on the workbench 1, a track group 2 is arranged on the workbench 1, a welding table 9 is arranged on the workbench 1, a pulley 31 is arranged on the workbench 1, the belt 3 is connected to the workbench 1 through the pulley 31, a drive motor 5 is connected to the pulley 31, and the drive motor 5 is arranged on the workbench 1; it also includes: a positioning mechanism 4 arranged on the track group 2, the molten mold and the riser are placed on the positioning mechanism 4, and move along the track of the track group 2, and a reciprocating reversing mechanism 7 is arranged on the workbench 1, and a coating mechanism 8 is arranged on the reciprocating reversing mechanism 7, through the cooperation between the reciprocating reversing mechanism 7 and the coating mechanism 8, the coating mechanism 8 is reciprocated and raised, and the coating is performed when it descends to the connection between the molten mold and the riser, and there is also an air jet mechanism 6 arranged on the workbench 1, and the air jet mechanism 6 is used to blow air on the surface of the molten mold after welding.

[0037] See also Figure 8-9 The reciprocating reversing mechanism 7 includes a second mounting frame 71, which is arranged on the workbench 1, and a vertical rod 4 72 is rotatably arranged on the second mounting frame 71. The lower end of the vertical rod 4 72 is connected to the pulley 1 31, and a connecting gear 3 721 is arranged on the vertical rod 4 72. A vertical rod 76 is rotatably arranged on the second mounting frame 71, and a connecting gear 5 761 is arranged on the vertical rod 76. The connecting gear 5 761 is engaged with the connecting gear 3 721. A vertical rod 6 75 is arranged on the second mounting frame 71, and a connecting gear 4 751 is arranged on the vertical rod 6 75. A pulley 2 741 is arranged on the vertical rod 6 75, and a toothed belt 74 is arranged on the pulley 2 741. A switching component 73 is arranged on the second mounting frame 71, and the size of the connecting gear 3 721 is larger than the connecting gear 5 761, so that the rotation of the vertical rod 76 is accelerated.

[0038] See also Fig. 9The switching assembly 73 includes a fifth vertical rod 731, which is arranged on the second mounting frame 71. A sleeve 732 is sleeved on the second mounting frame 71. The fifth vertical rod 731 is connected to the second mounting frame 71 through the sleeve 732. A forward linkage gear 733 is arranged on the sleeve 732. A forward linkage bevel gear 735 is arranged on the sleeve 732. A reverse linkage gear 734 is arranged on the fifth vertical rod 731. A reverse linkage bevel gear 736 is arranged on the fifth vertical rod 731. A connecting bevel gear 737 is rotatably arranged on the second mounting frame 71. The connecting bevel gear 737 is simultaneously connected to the reverse linkage bevel gear 736 and The forward linkage bevel gear 735 is connected, and missing gears 738 are set at both ends of the vertical rod seven 76. The missing gears 738 are respectively engaged with the reverse linkage gear 734 and the forward linkage gear 733. When the missing gear 738 at the bottom is engaged with the forward linkage gear 733, the sleeve 732 makes the reverse linkage bevel gear 736 rotate in the opposite direction of the sleeve 732 through the forward linkage bevel gear 735 and the connecting bevel gear 737. When the vertical rod five 731 rotates, the reverse linkage gear 734 and the missing gear 738 are not in a meshing state, and the missing gear 738 at the upper end of the vertical rod seven 76 is engaged with the reverse linkage gear 734.

[0039] See also Figure 10-11The smearing mechanism 8 includes a smearing box 81, a screw 86 is provided on the smearing box 81, and the screw 86 is slidably arranged on the second mounting frame 71. The smearing box 81 is connected to the second mounting frame 71 through the screw 86. The second mounting frame 71 is rotatably provided with an adjusting gear 85, and the adjusting gear 85 is connected to the screw 86 through a threaded connection. The screw 86 is a hollow structure and is connected to the smearing box 81. A conduit 861 is provided on the screw 86, and the screw 86 is connected to a feed pump through the conduit 861. A plurality of holes are provided on both sides of the smearing box 81, and a hole plate 82 is slidably arranged in the smearing box 81. A plurality of holes are provided on the hole plate 82, and a return spring 821 is provided between the smearing box 81 and the hole plate 82, and an inclined block 822 is provided on the hole plate 82. L-shaped rods 84 are slidably arranged on both sides of the smearing box 81, and a return spring 822 is provided between the L-shaped rod 84 and the smearing box 81. 41, an inclined surface parallel to the inclined block 1 822 is provided at one end of the L-shaped rod 84, and an inclined surface is opened at the other end of the L-shaped rod 84. A plurality of extension plates 83 are provided on the second mounting frame 71, and the extension plates 83 are located on both sides of the smear box 81. An inclined block 2 831 is provided on the extension plate 83, and the inclined block 2 831 is parallel to the inclined surface of the other end of the L-shaped rod 84. A screw 86 is provided through the sliding arrangement. When the adjusting gear 85 connected to the screw 86 by a thread rotates, the position of the screw 86 changes, so that the smear box 81 connected thereto also moves. In the process of the smear box 81 descending, the L-shaped rod 84 is squeezed by the inclined block 2 831 and moves toward the inside of the smear box 81, and squeezes the inclined block 1 822, so that the orifice plate 82 descends. When the holes on the orifice plate 82 are connected with the holes on the surface of the smear box 81, the hot wax in the smear box 81 is sprayed onto the connection surface between the investment mold and the riser.

[0040] See also Figure 7 The jet mechanism 6 includes a first mounting frame 61, on which a vertical rod 62 is rotatably arranged, the lower end of the vertical rod 62 is arranged on the pulley 31, and an acceleration gear 621 is arranged on the vertical rod 62, and a vertical rod 2 63 is arranged on the first mounting frame 61, and an acceleration gear 2 631 is arranged on the vertical rod 2 63, and the acceleration gear 2 631 is connected to the acceleration gear 1 621, and a connecting gear 1 632 is arranged on the vertical rod 2 63, and a vertical rod 3 64 is arranged on the first mounting frame 61, and a connecting gear 2 641 is arranged on the vertical rod 3 64, and the connecting gear 2 641 is meshed with the connecting gear one 632, a rotating disk 66 is arranged on the upper end of the vertical rod three 64, a connecting rod 661 is arranged on the non-center position of the rotating disk 66, the rotating disk 66 is connected to the mounting cylinder 65 through the connecting rod 661, the mounting cylinder 65 is provided with an exhaust duct 67, the acceleration gear one 621 is larger than the acceleration gear two 631, so the vertical rod two 63 rotates faster than the vertical rod one 62, so when the pulley one 31 rotates a small angle, the rotating disk 66 rotates faster, so that the piston plate 652 can reciprocate faster in the mounting cylinder 65.

[0041] See also Figure 7 A piston plate 652 is slidably arranged in the mounting cylinder 65, a piston rod 651 is arranged on the piston plate 652, the piston rod 651 penetrates and slides on the mounting cylinder 65, the piston rod 651 is connected with the connecting rod 661, the mounting cylinder 65 is connected with the connecting rod 661 through the piston rod 651, two gas ports 653 are arranged on the mounting cylinder 65, a one-way valve 654 is arranged in the gas port 653, the one-way valve 654 is arranged in opposite directions, the exhaust passage 67 is connected with one of the gas ports 653, and the rotating disk 66 enables the piston rod 651 to drive the piston plate 652 to rotate through the connecting rod 661. The mounting cylinder 65 makes reciprocating motion. When the piston plate 652 is pushed into the mounting cylinder 65, the gas port 653 below the mounting cylinder 65 pushes the gas in the mounting cylinder 65 to the connection between the molten mold and the riser through the one-way valve 654, and blows away the broken wax on the surface. When the piston plate 652 moves toward the outside of the mounting cylinder 65, air is introduced into the mounting cylinder 65 through the one-way valve 654 above the mounting cylinder 65, so as to blow compressed gas to the surface of the molten mold and the riser back and forth. By setting the air intake of the mounting cylinder 65 at the top, it is avoided that the broken wax is adsorbed into the mounting cylinder 65 when the mounting cylinder 65 takes in air.

[0042] See also Figure 3 The track group 2 includes an annular track 21, which is arranged on the workbench 1. The workbench 1 is provided with a merging track 22, the workbench 1 is provided with a separating track 221, and a connecting track 222 is arranged between the separating track 221 and the merging track 22.

[0043] See also Figure 4-5The positioning mechanism 4 includes a fixed seat 41, which is slidably arranged on the annular track 21, the fixed seat 41 is connected to the belt 3, a slide rail 411 is arranged on the fixed seat 41, and a rotating table 421 is slidably arranged on the fixed seat 41 through the slide rail 411, and a rotating seat 422 is arranged on the lower surface of the rotating table 421, and a moving seat 42 is rotatably arranged on the rotating table 421 through the rotating seat 422, and the moving seat 42 can smoothly pass through the connecting track 222 through the rotating connection between the moving seat 42 and the rotating table 421, and pulleys 43 are arranged on both sides of the moving seat 42 and the fixed seat 41, and the fixed seat 41 is slidably connected to the annular track 21 through the pulley 43, and the moving seat 42 is slidably arranged on the merging track 22 through the pulley 43, and the fixed seat A mold placing table 44 is provided on the seat 41, and a riser table 45 is provided on the rotating table 421. A plurality of limiting columns 441 are provided on the mold placing table 44 and the riser table 45. When the fixed seat 41 moves on the annular track 21, the movable seat 42 moves on the separation track 221, and the fixed seat 41 and the movable seat 42 are in a separated state, so that the smear box 81 can enter between the mold and the riser. After the movable seat 42 moves to the connecting track 222, the movable seat 42 rotates on the rotating table 421, and the distance between the rotating tables 421 is shortened until the movable seat 42 leaves the connecting track 222 and enters the merging track 22. At this time, the fixed seat 41 and the movable seat 42 are fitted together, and the mold and the riser are also fitted together.

[0044] See also Figure 4 The limiting columns 441 are arranged on the upper surface of the investment wax placing platform 44 near the two sides, and the limiting columns 441 are arranged on the upper surface of the riser platform 45 near the two sides. The investment wax placing platform 44 and the riser platform 45 are both made of aluminum, and the interior of the riser platform 45 is a hollow structure, so that the investment wax placing platform 44 is lighter, and the investment wax and the riser can be fixed by the limiting columns 441.

[0045] Before use, the staff places the mold on the mold placement table 44 at the position of the welding table 9, and places it between the limiting columns 441, and the riser is placed on the riser table 45 and between the limiting columns 441, and the drive motor 5 is started to make the pulley 31 drive the belt 3 to rotate, and the fixed seat 41 connected to the belt 3 moves along its trajectory on the circular track 21. When the fixed seat 41 moves on the circular track 21, the movable seat 42 moves on the separation track 221, and the fixed seat 41 and the movable seat 42 are in a separated state, and the mold and the riser are also in a separated state. When the pulley 1 31 rotates, the pulley 1 31 drives the connecting gear 5 761 to rotate through the coaxially connected connecting gear 3 721, and the connecting gear 5 761 causes the missing gears 738 at both ends of the vertical rod 76 to rotate synchronously through the vertical rod 76. When the missing gear 738 at the upper end of the vertical rod 76 is engaged with the reverse linkage gear 734, the vertical rod 5 731 rotates in the reverse direction through the reverse linkage gear 734, and then the vertical rod 6 75 is rotated in the reverse direction through the toothed belt 74. After the missing gear 738 at the upper end of the vertical rod 76 is disengaged from the reverse linkage gear 734, the missing gear 738 at the lower end of the vertical rod 76 is engaged with the forward linkage gear 734. 3 is engaged, and the sleeve 732 is rotated, and the sleeve 732 is connected with the reverse linkage bevel gear 736 through the forward linkage bevel gear 735 by the connecting bevel gear 737, and the vertical rod 5 731 and the sleeve 732 are rotated in opposite directions, so that the vertical rod 5 731 makes the vertical rod 6 75 rotate forward through the toothed belt 74, and when the vertical rod 6 75 rotates, the adjusting gear 85 is rotated through the connecting gear 4 751, and the screw rod 86 is driven to perform reciprocating lifting and lowering motion on the second mounting frame 71, and the smear box 81 can be lowered between the investment mold and the riser under the drive of the screw rod 86. During the descent of the smear box 81, the L-shaped rod 84 is squeezed by the second inclined block 831 and moves toward the inside of the smear box 81, and squeezes the first inclined block 822, so that the orifice plate 82 is lowered. When the hole on the orifice plate 82 is connected with the hole on the surface of the smear box 81, the hot wax in the smear box 81 is sprayed on the connection surface between the investment mold and the riser. When the smear box 81 rises and leaves between the investment mold and the riser, the second inclined block 831 no longer squeezes the L-shaped rod 84, so that the first inclined block 822 is reset, and the smear box 81 is always filled with hot wax through the conduit 861. The surface of the conduit 861 can be wrapped with a heating wire to prevent the hot wax from cooling.

[0046] As the fixed seat 41 continues to move, and the movable seat 42 moves to the connecting track 222, the movable seat 42 rotates on the rotating table 421, and the distance between the rotating tables 421 gradually shortens until the movable seat 42 leaves the connecting track 222 and enters the merging track 22. At this time, the fixed seat 41 fits with the movable seat 42, and the molten mold and the riser are also fitted. When the fixed seat 41 moves to the front of the welding table 9, the driving motor 5 is stopped, and the staff welds the connection between the molten mold and the riser.

[0047] Similarly, when the pulley 31 rotates, the pulley 31 drives the vertical rod 62 to rotate, and the vertical rod 62 accelerates the rotation of the vertical rod 63 through the acceleration gear 621 and the acceleration gear 2 631, so that the rotating disk 66 rotates through the connecting gear 1 632 and the connecting gear 2 641, and the rotating disk 66 drives the piston plate 652 to reciprocate in the mounting cylinder 65 through the connecting rod 661. When the piston plate 652 is pushed into the mounting cylinder 65, the air port 653 below the mounting cylinder 65 pushes the gas in the mounting cylinder 65 to the connection between the molten mold and the riser through the one-way valve 654, and blows away the broken wax on its surface. When the piston plate 652 moves to the outside of the mounting cylinder 65, air is introduced into the mounting cylinder 65 through the one-way valve 654 above the mounting cylinder 65, so as to blow compressed gas to the surface of the molten mold and the riser back and forth.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precisely positioned investment mold and riser welding device, comprising a workbench (1) and a belt (3) arranged on the workbench (1), characterized in that: The workbench (1) is provided with a track group (2), the workbench (1) is provided with a welding table (9), the workbench (1) is provided with a pulley 1 (31), the belt (3) is connected to the workbench (1) via the pulley 1 (31), the pulley 1 (31) is connected to a drive motor (5), and the drive motor (5) is provided on the workbench (1); Also included are: A positioning mechanism (4), wherein the positioning mechanism (4) is arranged on the track group (2), and the mold and the riser are placed on the positioning mechanism (4) and move along the track of the track group (2); the positioning mechanism (4) comprises a fixed seat (41); a slide rail (411) is arranged on the fixed seat (41), and a rotating table (421) is slidably arranged on the fixed seat (41) via the slide rail (411); a mold placement table (44) is arranged on the fixed seat (41), and a riser table (45) is arranged on the rotating table (421); and a plurality of limiting columns (441) are arranged on both the mold placement table (44) and the riser table (45); A reciprocating reversing mechanism (7), wherein the reciprocating reversing mechanism (7) is arranged on the workbench (1); A coating mechanism (8), wherein the coating mechanism (8) is arranged on the reciprocating reversing mechanism (7), and the reciprocating reversing mechanism (7) cooperates with the coating mechanism (8), so that the coating mechanism (8) reciprocates and rises, and coating is performed when it descends to the connection between the investment mold and the riser; An air jet mechanism (6), wherein the air jet mechanism (6) is arranged on the workbench (1) and is used to blow air onto the surface of the molten mold after welding; The reciprocating reversing mechanism (7) comprises a second mounting frame (71), the second mounting frame (71) being arranged on the workbench (1), a vertical rod (72) being rotatably arranged on the second mounting frame (71), the lower end of the vertical rod (72) being connected to the first pulley (31), the vertical rod (72) being arranged with a connecting gear (721), a vertical rod (76) being rotatably arranged on the second mounting frame (71), the vertical rod (76) being arranged with a connecting gear (761), the connecting gear (761) being meshed with the connecting gear (721), a vertical rod (75) being arranged on the second mounting frame (71), a connecting gear (4) (751) being arranged on the vertical rod (75), a second pulley (741) being arranged on the vertical rod (75), a toothed belt (74) being arranged on the second pulley (741), and a switching assembly (73) being arranged on the second mounting frame (71); The smearing mechanism (8) comprises a smearing box (81), a screw (86) is arranged on the smearing box (81), and the screw (86) is slidably arranged on the second mounting frame (71), the smearing box (81) is connected to the second mounting frame (71) via the screw (86), and the second mounting frame (71) is rotatably provided with an adjusting gear (85), and the adjusting gear (85) and the screw (86) are connected via a thread, the screw (86) is a hollow structure, and is connected to the smearing box (81), a conduit (861) is arranged on the screw (86), and the screw (86) is connected to a feed pump via the conduit (861), a plurality of holes are opened on both sides of the smearing box (81), and a hole plate (82) is slidably arranged in the smearing box (81), and the hole plate (82) 2) is provided with a plurality of holes, a return spring 1 (821) is provided between the smear box (81) and the orifice plate (82), an inclined block 1 (822) is provided on the orifice plate (82), L-shaped rods (84) are slidably provided through both sides of the smear box (81), a return spring 2 (841) is provided between the L-shaped rod (84) and the smear box (81), an inclined surface parallel to the inclined block 1 (822) is provided at one end of the L-shaped rod (84), an inclined surface is provided at the other end of the L-shaped rod (84), a plurality of extension plates (83) are provided on the second mounting frame (71), the extension plates (83) are located on both sides of the smear box (81), an inclined block 2 (831) is provided on the extension plates (83), and the inclined block 2 (831) is parallel to the inclined surface at the other end of the L-shaped rod (84).

2. The precise positioning investment mold and riser welding equipment according to claim 1 is characterized in that: The switching assembly (73) comprises a fifth vertical rod (731), the fifth vertical rod (731) being arranged on a second mounting frame (71), the second mounting frame (71) being sleeved with a sleeve (732), the fifth vertical rod (731) being connected to the second mounting frame (71) via the sleeve (732), the sleeve (732) being provided with a forward rotation linkage gear (733), the sleeve (732) being provided with a forward rotation linkage bevel gear (735), the fifth vertical rod (731) being provided with a reverse rotation linkage gear (736), and the second second rotation linkage gear (737) being provided with a reverse rotation linkage gear (738). A rotating gear (734) is provided on the fifth vertical pole (731) and a reverse linkage bevel gear (736) is provided on the second mounting frame (71). A connecting bevel gear (737) is rotatably provided on the second mounting frame (71). The connecting bevel gear (737) is simultaneously connected to the reverse linkage bevel gear (736) and the forward linkage bevel gear (735). Missing gears (738) are provided at both ends of the seventh vertical pole (76). The missing gears (738) are respectively engaged with the reverse linkage gear (734) and the forward linkage gear (733).

3. The precise positioning investment mold and riser welding equipment according to claim 2 is characterized in that: The jet mechanism (6) comprises a first mounting frame (61), a first vertical rod (62) being rotatably mounted on the first mounting frame (61), the lower end of the first vertical rod (62) being mounted on a pulley (31), the first vertical rod (62) being mounted with an acceleration gear (621), a second vertical rod (63) being mounted on the first mounting frame (61), the second vertical rod (63) being mounted with an acceleration gear (631), the second acceleration gear (631) being connected to the first acceleration gear (621), and the second vertical rod (63) being mounted with a connecting rod. The first mounting frame (61) is provided with a vertical rod (64), the vertical rod (64) is provided with a connecting gear (641), the connecting gear (641) is engaged with the connecting gear (632), a rotating disk (66) is provided at the upper end of the vertical rod (64), a connecting rod (661) is provided at a non-center position on the rotating disk (66), the rotating disk (66) is connected to the mounting tube (65) through the connecting rod (661), and the mounting tube (65) is provided with an exhaust duct (67).

4. The precise positioning investment mold and riser welding equipment according to claim 3 is characterized in that: A piston plate (652) is slidably arranged in the mounting cylinder (65), a piston rod (651) is arranged on the piston plate (652), the piston rod (651) penetrates and is slidably arranged on the mounting cylinder (65), the piston rod (651) is connected to a connecting rod (661), the mounting cylinder (65) is connected to the connecting rod (661) via the piston rod (651), two air ports (653) are arranged on the mounting cylinder (65), one-way valves (654) are arranged in the air ports (653), the one-way valves (654) are arranged in opposite directions, and the exhaust passage (67) is connected to one of the air ports (653).

5. The precise positioning investment mold and riser welding equipment according to claim 4, characterized in that: The track set (2) comprises an annular track (21), the annular track (21) being arranged on a workbench (1), a merging track (22) being arranged on the workbench (1), a separating track (221) being arranged on the workbench (1), and a connecting track (222) being arranged between the separating track (221) and the merging track (22).

6. The precise positioning investment mold and riser welding equipment according to claim 1, characterized in that: The fixed seat (41) is slidably arranged on the annular track (21), the fixed seat (41) is connected to the belt (3), a rotating seat (422) is arranged on the lower surface of the rotating platform (421), the rotating platform (421) is rotatably arranged with a movable seat (42) through the rotating seat (422), pulleys (43) are arranged on both sides of the movable seat (42) and the fixed seat (41), the fixed seat (41) is slidably connected to the annular track (21) through the pulley (43), and the movable seat (42) is slidably arranged on the merging track (22) through the pulley (43).

7. The precise positioning investment mold and riser welding equipment according to claim 6, characterized in that: The limiting columns (441) are arranged on the upper surface of the investment mold placement platform (44) near the two sides, and the limiting columns (441) are arranged on the upper surface of the riser platform (45) near the two sides. The investment mold placement platform (44) and the riser platform (45) are both made of aluminum, and the interior of the riser platform (45) is a hollow structure.

Images