Automatic air pressure shell mounting machine capable of avoiding forming knife edge seam

Abstract

The invention discloses an automatic pneumatic shell mounting machine capable of avoiding forming a knife edge seam, which comprises a base, a support table and a motion guide mechanism, the support table is fixedly mounted on the top of the base, the motion guide mechanism is in sliding fit with the support table, and a shell mounting cylinder is mounted on the top of the motion guide mechanism; an upper die sleeve is coaxially connected to the bottom of the motion guide mechanism, a lower die sleeve is fixedly installed on the base, and the upper die sleeve and the lower die sleeve are coaxially arranged. The lower nozzle steel shell is supported and positioned by the lower die sleeve, in the process that the upper die sleeve presses the lower nozzle refractory material into the lower nozzle steel shell, the upper die sleeve makes contact with the concave face and the side wall of the child-mother table, the lower nozzle refractory material can be rectified and calibrated with the concave face and the side wall of the child-mother table as the benchmark, it is guaranteed that the connecting boss and the child-mother table are parallel to each other, and no knife edge seam exists; the thickness of the filled fire clay is uniform, and bleed-out caused by sealing failure due to uneven stress of the fire clay is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of downspout manufacturing equipment, in particular to a high-efficiency automatic pneumatic shell filling machine capable of avoiding the formation of knife-edge seams. Background Art

[0002] The refractory material of the ladle sliding nozzle in the steel plant is generally composed of an upper nozzle, an upper slide plate, a lower slide plate and a lower nozzle, as shown in the attached Figure 8 As shown, the upper water inlet and the upper slide plate are assembled and installed at the bottom of the ladle, the lower water inlet is assembled on the lower slide plate, the lower slide plate and the upper slide plate slide in cooperation, the sliding mechanism gives balanced pressure to the upper and lower slide plates and drives the lower slide plate and the lower water inlet to move laterally, controls the misalignment degree of the steel flow holes of the lower slide plate and the upper slide plate, and realizes the control of molten steel flow.

[0003] Among them, the water outlet is composed of a water outlet refractory material and a water outlet steel shell, and the space between the water outlet refractory material and the water outlet steel shell is filled with a fire mud of about 2 mm thick, which plays a role in fixing the water outlet refractory material and the water outlet steel shell. In the prior art, the fire mud is generally applied to the surface of the water outlet refractory material, and then loaded into the water outlet steel shell, and then the water outlet refractory material is completely pressed into the water outlet steel shell by a hydraulic press. Patent document CN214212207U discloses a water outlet automatic shell installation device, guide columns are arranged at the four corners of the upper surface of the frame, guide holes are arranged on the pressure plate, the pressure plate is slidably fitted on the guide columns, and the cylinder drives the pressure plate to move up and down; the water outlet blank of the ladle is placed on the workpiece placement hole of the frame, and the cylinder is started. The cylinder drives the pressure plate to move downward and wraps the steel shell on the water outlet blank.

[0004] In practical applications, such as the attached Fig. 9As shown, at the connection position between the lower slide plate and the refractory material of the water outlet, a mother-and-child platform is arranged on the top of the refractory material of the water outlet, and a connecting boss matching the mother-and-child platform is arranged on the lower slide plate. The mother-and-child platform and the connecting boss cooperate with each other, and the gap between the two is filled and sealed by fire mud. The above-mentioned "a device for automatically installing an outer shell of a water outlet" can only be pressed on the end of the water outlet when pressing the steel shell and the water outlet blank, and it is impossible to ensure that the water outlet refractory material and the steel shell are coaxial, resulting in the concave surface of the mother-and-child platform of the water outlet being not perpendicular to the center line of the steel shell. When the refractory material of the slide plate water outlet is installed on the sliding mechanism, it is impossible to ensure that the concave surface of the mother-and-child platform of the water outlet is parallel to the end face of the connecting boss on the lower slide plate, forming a so-called knife-edge seam, so that the thickness of the fire mud filled between the concave surface of the mother-and-child platform and the connecting boss is uneven at various symmetrical positions. During continuous casting of steel, the amount of thermal expansion and contraction of the fire mud is different, and the force on the fire mud is uneven at various locations, resulting in steel leakage accident in the fire mud seam between the lower slide plate and the water outlet. In addition, when pouring steel, since the lower part of the water nozzle is usually covered with a long water nozzle about 1.5 meters long and weighing about 20 kilograms for protection of casting, which is inserted into the steel liquid surface of the tundish, when the sliding mechanism drives the lower slide plate and the water nozzle body to move laterally, the water nozzle will be affected by the long water nozzle and produce lateral shear force relative to the lower slide plate. The longer the long water nozzle or the faster the lateral movement, the greater the lateral shear force generated. The lateral shear force will act on the gap between the water nozzle body and the lower slide plate. Under the premise of uneven filling thickness of the fire mud, the expansion of the "knife edge gap" will be further accelerated, the deterioration of the fire mud sealing effect will be aggravated, and steel leakage accidents will occur. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to provide an automated pneumatic shell loading machine which can improve the steel shell installation efficiency and ensure a stable sealed connection between the lower water outlet and the lower slide plate and can avoid the formation of a knife edge seam.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an automated pneumatic shell filling machine capable of avoiding the formation of knife-edge seams, comprising a base, a support platform and a motion guide mechanism, the support platform being fixedly mounted on the top of the base, the motion guide mechanism being slidably fitted on the support platform, a shell filling cylinder being mounted on the top of the motion guide mechanism, an upper die sleeve being coaxially connected to the bottom of the motion guide mechanism, a lower die sleeve being fixedly mounted on the base, the upper die sleeve and the lower die sleeve being coaxially arranged; a refractory material of a downspout with an excess of fire mud on its surface being pre-placed into the lower die sleeve with its water head downwardly applied The steel shell of the downspout is installed in the lower mold sleeve together with the downspout refractory material with excessive fire mud on the surface. The outer wall of the downspout steel shell at the reducing step contacts the inner wall step of the lower mold sleeve to form a positioning connection. The shell loading cylinder extends and pushes the motion guide mechanism to make the upper mold sleeve enter into the sub-stage on the top of the downspout refractory material for connecting with the lower slide plate. The upper mold sleeve contacts the bottom wall of the sub-stage to make the downspout refractory material move into the downspout steel shell and squeeze out excess fire mud until the downspout refractory material completely enters into the downspout steel shell to form the downspout body.

[0007] The above-mentioned automated pneumatic shell filling machine capable of avoiding the formation of knife-edge seams has a height-fixing column fixedly arranged directly below each corner of the triangular pressure plate, and the three height-fixing columns are fixedly installed on the top of the support plate.

[0008] The above-mentioned automated pneumatic shell filling machine capable of avoiding the formation of knife-edge seams, has a press platform formed on the side wall of the upper mold sleeve facing the lower mold sleeve, the outer diameter of the press platform is less than or equal to the inner diameter of the concave surface of the refractory mother-and-child platform of the lower water outlet, and the axial length of the press platform is greater than or equal to the depth of the concave surface of the mother-and-child platform; after the upper mold sleeve extends into the upper mother-and-child platform of the lower water outlet: the end face of the press platform is in contact with the concave surface of the mother-and-child platform of the lower water outlet.

[0009] The above-mentioned automated pneumatic shell filling machine that can avoid the formation of knife-edge seams, the lower mold sleeve is penetrated by a step hole, the step hole is coaxially arranged with the press table, the inner wall of the step hole is provided with a positioning platform, and the inner diameter of the step hole matches the outer diameter of the lower water inlet steel shell.

[0010] In the above-mentioned automatic pneumatic shell filling machine capable of avoiding the formation of knife-edge seams, the end surface of the pressing table and the table surface of the positioning table are both perpendicular to the axis of the drain port body.

[0011] The above-mentioned automated pneumatic shell filling machine capable of avoiding the formation of knife-edge seams also includes an ejection mechanism, which is arranged directly below the lower mold sleeve; the ejection mechanism includes an ejection cylinder and a conical ejector rod, the ejection cylinder and the motion guide mechanism are coaxially arranged, the cylinder body of the ejection cylinder is fixedly connected to the base, the conical ejector rod is coaxially fixedly connected to the end of the piston rod of the ejection cylinder, and the large-diameter end of the conical ejector rod is fixedly connected to the end of the piston rod of the ejection cylinder.

[0012] The above-mentioned automated pneumatic shell filling machine capable of avoiding the formation of knife-edge seams, has a mud storage hopper arranged directly above the cylinder body of the ejection cylinder, the mud storage hopper is fixedly connected to the base through a bracket, the conical ejector rod is located in the mud storage hopper, and the piston rod of the ejection cylinder passes through the mud storage hopper and is fixedly connected to the end of the conical ejector rod.

[0013] The above-mentioned automated pneumatic shell filling machine capable of avoiding the formation of knife-edge seams, the support platform includes three upper supporting columns, a supporting plate and a top cover plate, the three supporting columns are respectively vertically fixedly installed on the top of the base, the top cover plate is fixed on the top ends of the three supporting columns, and the support plate is fixed on the middle parts of the three supporting columns; the cylinder body of the shell filling cylinder is fixedly installed on the top cover plate, and the motion guide mechanism is slidably fitted on the support plate.

[0014] The above-mentioned automated pneumatic shell filling machine can avoid the formation of knife-edge seams, and the motion guide mechanism includes a triangular pressure plate, a moving cylinder and a positioning guide sleeve. A fixing hole is penetrated through the support plate, and the positioning guide sleeve is fixedly installed in the fixing hole. The moving cylinder passes through the positioning guide sleeve and slides with the moving cylinder. The triangular pressure plate is fixedly connected to the top of the moving cylinder, and the upper mold sleeve is fixedly installed on the bottom end of the moving cylinder. The piston rod end of the shell filling cylinder is fixedly connected to the triangular pressure plate.

[0015] The above-mentioned automated pneumatic shell filling machine capable of avoiding the formation of knife-edge seams, the base includes a bottom platform, a lower supporting column and a workbench, the four corners of the top of the bottom platform are fixedly connected to the lower supporting columns, the workbench is fixedly installed on the top of the lower supporting columns, a lower mold mounting hole is opened on the workbench, and the lower mold sleeve is fixedly installed in the lower mold mounting hole; the support platform is fixedly installed on the top of the workbench; the four corners of the bottom of the bottom platform are fixedly connected to supporting feet.

[0016] The technical solution of the present invention achieves the following beneficial technical effects:

[0017] 1. The present invention sets three height-fixing columns and upper and lower die sleeves: the three vertices of the three height-fixing columns form a plane, which contacts the corresponding positions of the triangular plate after the moving cylinder is pressed down into place. First, the height dimension of the shell of the nozzle is ensured; second, the moving cylinder and the positioning guide sleeve are completely coaxial, which ensures that the working surfaces of the upper and lower die sleeves are parallel, and ensures that the positioning surface at the diameter-changing step of the steel shell of the nozzle is parallel to the concave surface of the upper mother-and-child platform of the nozzle refractory material; the nozzle steel shell is supported and positioned by the lower die sleeve, and in the process of the upper die sleeve pressing the nozzle refractory material into the nozzle steel shell, the upper die sleeve contacts the concave surface and side wall of the mother-and-child platform, which can The refractory material of the downspout can be calibrated and corrected based on the concave surface and side wall of the sub-platform, because the fire clay filled between the downspout steel shell and the downspout refractory is soft. When the concave surface of the sub-platform is in an inclined state, that is, the downspout refractory is tilted relative to the downspout steel shell, the lower mold sleeve will first contact the high point of the concave surface of the sub-platform, and push the downspout refractory material to correct the deviation until the concave surface of the sub-platform is completely in contact with the end face of the upper mold sleeve. Therefore, after the shell loading is finally completed, the downspout steel shell and the downspout refractory are completely coaxial. Therefore, the design of the three fixed height columns and the upper and lower mold sleeves avoids the appearance of knife edge seams. When the downspout is actually assembled and used, the reducing step of the downspout steel shell is connected to the sliding mechanism to position the entire downspout body. When the connecting boss on the lower sliding plate is connected to the concave surface of the mother-and-child platform on the downspout refractory material, it can be ensured that the connecting boss and the mother-and-child platforms are parallel to each other without any knife edge gap, so that the thickness of the filling fire mud is uniform, avoiding uneven force on the fire mud and steel leakage caused by sealing failure.

[0018] 2. The present invention arranges a moving cylinder in conjunction with a positioning guide sleeve: when the moving cylinder moves, compared with the structure of multiple guide rods for guiding in the prior art, the friction force can be reduced, which is beneficial to increasing the running speed and improving the shell loading efficiency; and all the power is concentrated on the moving cylinder, making the power transmission more direct and efficient; the traditional structure of multiple guide rods has multiple sliding guide structures. When the friction resistance of the multiple guide structures is not equal, it will cause the pressure plate to descend unstably, and it is difficult to ensure that the pressure plate is in a horizontal state and in contact with the downspout refractory material, that is, the downspout refractory material may be skewed relative to the steel shell during the shell loading process. The present invention, by arranging a moving cylinder and a positioning guide sleeve, can completely avoid the above situation, further ensure the matching accuracy of the downspout refractory material and the downspout steel shell, and improve the finished product rate of downspout shell loading.

[0019] 3. The physical equipment made according to the present invention has been promoted and applied in the company's production workshop. Compared with the water outlet pressed by the old hydraulic shell loading machine, statistics show that in the past two years, there has been no steel seepage accident in the fire mud seam of the water outlet of the lower slide plate caused by the knife edge seam. The shell loading operation time is reduced from 45s to 15s, with significant effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 A schematic diagram of the front cross-sectional structure of the present invention;

[0022] Figure 3 A schematic diagram of the structure of the motion guide mechanism in the present invention;

[0023] Figure 4 A schematic diagram of the structure of the upper die sleeve in the present invention;

[0024] Figure 5 A schematic diagram of the structure of the lower mold sleeve in the present invention;

[0025] Figure 6 Schematic diagram of the refractory material of the water outlet of the present invention being coaxial with the conical top rod;

[0026] Figure 7 A schematic diagram of the refractory material of the water outlet of the present invention and the conical top rod being not coaxial;

[0027] Figure 8 A schematic cross-sectional view of a sliding nozzle device in the prior art;

[0028] Fig. 9 Schematic diagram of the assembly of the lower slide plate and the lower nozzle body of the sliding nozzle device in the prior art.

[0029] The reference numerals in the figure are as follows: 1-base; 101-bottom platform; 102-lower supporting column; 103-workbench; 104-supporting foot; 105-lower die mounting hole; 2-supporting platform; 201-upper supporting column; 202-supporting plate; 203-top cover plate; 3-motion guide mechanism; 301-triangular pressure plate; 302-motion cylinder; 303-height-fixing column; 304-positioning guide sleeve; 4-shell loading cylinder; 5-upper Mold sleeve; 51-pressing table; 6-lower mold sleeve; 61-step hole; 62-positioning table; 7-ejection mechanism; 71-ejection cylinder; 72-mud storage bucket; 73-conical ejector rod; 8-downspout body; 81-downspout steel shell; 82-fire clay; 83-downspout refractory material; 84-mother-and-child platform; 85-diameter reducing step; 9-seat brick; 10-upper spout; 11-upper slide plate; 12-ladle; 13-lower slide plate; 131-connecting boss. DETAILED DESCRIPTION

[0030] In this embodiment, an automatic air pressure shell filling machine capable of avoiding the formation of a knife edge seam is provided. Figure 1-2As shown, it includes a base 1, a support platform 2 and a motion guide mechanism 3, the support platform 2 is fixedly installed on the top of the base 1, the motion guide mechanism 3 is slidably fitted on the support platform 2, a shell cylinder 4 is installed on the top of the motion guide mechanism 3, the piston rod end of the shell cylinder 4 is connected to the top of the motion guide mechanism 3, an upper die sleeve 5 is coaxially connected to the bottom of the motion guide mechanism 3, a lower die sleeve 6 is fixedly installed on the base 1, and the upper die sleeve 5 and the lower die sleeve 6 are coaxially arranged; as shown Figure 2 and Figure 6 As shown, a downspout refractory material 83 with an excess of fire mud 82 on its surface is pre-placed into a downspout steel shell 81 with the water head downward, and the downspout steel shell 81 together with the downspout refractory material 83 with an excess of fire mud 82 on its surface is installed in a lower mold sleeve 6, and the outer wall of the reducing step 85 of the downspout steel shell 81 contacts the positioning platform 62 in the upper step hole 61 of the lower mold sleeve 6 to form a positioning connection, and the shell loading cylinder 4 extends to push the motion guide mechanism 3, so that the upper mold sleeve 5 enters into the mother-and-child platform 84 on the top of the downspout refractory material 83 for connecting with the lower slide plate 13, and the upper mold sleeve 5 contacts the concave surface of the mother-and-child platform 84 to move the downspout refractory material 83 into the downspout steel shell 81. The fire clay 82 is moved and squeezed out until the downspout refractory material 83 is completely inserted into the downspout steel shell 81 to form the downspout body 8; since the fire clay 82 is soft, in the process of pressing the downspout refractory material 83 into the downspout steel shell 81, uneven pressure or tilt will cause the downspout refractory material 83 to be tilted when loaded into the downspout steel shell 81, and then in the subsequent steel plant assembly, a knife-edge seam will be formed at the connection between the connecting boss 131 and the mother-and-child platform 84, causing the fire clay seam to be poorly sealed, resulting in steel leakage. The present invention ensures that the downspout refractory material 83 is coaxial with the downspout steel shell 81 to the greatest extent by arranging the matching use of the upper die sleeve 5 and the lower die sleeve 6, and the cooperation of the motion guide mechanism 3.

[0031] like Figure 4 As shown, a press platform 51 is formed on the side wall of the upper die sleeve 5 facing the lower die sleeve 6, and the outer diameter of the press platform 51 is less than or equal to the inner diameter of the mother-and-child platform 84 at the top of the lower water inlet refractory material 83, and the axial length of the press platform 51 is greater than or equal to the depth of the mother-and-child platform 84; after the upper die sleeve 5 is extended into the mother-and-child platform 84: the end face of the press platform 51 is fitted with the concave surface of the mother-and-child platform 84, and by setting the upper die sleeve 5 and the press platform 51, pressure can be applied to the inner concave surface of the mother-and-child platform 84, and finally the parallelism between the concave surface of the mother-and-child platform 84 and the end face of the connecting boss 131 is ensured, thereby improving the uniformity of the filling fire mud, ensuring the sealing effect, and avoiding the formation of a "knife edge seam" to cause steel leakage accidents.

[0032] like Figure 6As shown, a step hole 61 is penetrated through the lower mold sleeve 6, and the step hole 61 is coaxially arranged with the pressing platform 51. A positioning platform 62 is provided on the inner wall of the step hole 61. The inner diameter of the step hole 61 matches the outer diameter of the downspout steel shell 81, that is, the small diameter end of the downspout steel shell 81 is gap-fitted with the small diameter section of the step hole 61, and the large diameter end of the downspout steel shell 81 is gap-fitted with the large diameter section of the step hole 61; the end face of the pressing platform 51 and the table surface of the positioning platform 62 are both perpendicular to the axis of the downspout body 8.

[0033] like Figure 2 As shown, the ejection mechanism 7 is arranged directly below the lower die sleeve 6, and the ejection mechanism 7 includes an ejection cylinder 71 and a conical ejector rod 73. The ejection cylinder 71 and the motion guide mechanism 3 are coaxially arranged, and the cylinder body of the ejection cylinder 71 is fixedly connected to the bottom platform 101 of the base 1, and the conical ejector rod 73 is coaxially fixedly connected to the piston rod end of the ejection cylinder 71, and the large diameter end of the conical ejector rod 73 is fixedly connected to the piston rod end of the ejection cylinder 71. In the process of the conical ejector rod 73 ejecting the downspout body 8 out of the lower die sleeve 6, it is possible to synchronously detect whether the downspout refractory material 83 and the downspout steel shell 81 are coaxial. The specific principle is as follows: Figure 6 As shown, under normal circumstances, the steel shell 81 of the water outlet is supported by the positioning of the lower die sleeve 6, and its position is relatively fixed. After the upper die sleeve 5 is pressed into the water outlet refractory 83, the water outlet refractory 83 is coaxial with the steel shell 81 of the water outlet. When the conical ejector rod 73 enters the steel hole in the water outlet refractory 83, a certain position of the conical surface of the conical ejector rod 73 will not contact the refractory in advance, and the conical ejector rod 73 can contact the refractory stably and eject the water outlet body 8. Figure 7 As shown, when the sprue refractory material 83 and the downspout steel shell 81 are not coaxial, when the conical push rod 73 enters the flow steel hole, one side of the conical push rod 73 will first contact the refractory material and cannot smoothly push the downspout body 8 upward, causing the downspout body 8 to shake abnormally, thereby making a judgment.

[0034] like Figure 2 As shown, a mud storage hopper 72 is provided just above the cylinder body of the ejection cylinder 71, and the mud storage hopper 72 is fixedly connected to the base 1 through a bracket. The conical ejector rod 73 is located in the mud storage hopper 72, and the piston rod of the ejection cylinder 71 passes through the mud storage hopper 72 and is fixedly connected to the end of the conical ejector rod 73. By providing the mud storage hopper 72, the excess fire mud squeezed out during shell filling can be received for easy reuse.

[0035] like Figure 1-2As shown, the support platform 2 includes three upper supporting columns 201, a supporting plate 202 and a top cover plate 203. The three supporting columns 201 are respectively and vertically fixedly installed on the top of the working table 103 of the base 1, the top cover plate 203 is fixed on the top ends of the three supporting columns 201, and the supporting plate 202 is fixed on the middle parts of the three supporting columns 201; the cylinder body of the shell cylinder 4 is fixedly installed on the top cover plate 203, and the motion guide mechanism 3 is slidably fitted on the support plate 202.

[0036] like Figure 2-3 As shown, the motion guide mechanism 3 includes a triangular pressure plate 301, a moving cylinder 302 and a positioning guide sleeve 304. A fixing hole is penetrated through the support plate 202, and the positioning guide sleeve 304 is fixedly installed in the fixing hole. The moving cylinder 302 passes through the positioning guide sleeve 304 and slides with the moving cylinder 302. The triangular pressure plate 301 is fixedly connected to the top of the moving cylinder 302, and the upper mold sleeve 5 is fixedly installed on the bottom end of the moving cylinder 302. The piston rod end of the shell loading cylinder 4 is fixedly connected to the triangular pressure plate 301; a height-fixing column 303 is fixedly arranged directly below each corner of the triangular pressure plate 301, and the height-fixing column 303 is fixedly installed on the top of the support plate 202.

[0037] like Figure 2 As shown, the base 1 includes a bottom platform 101, a lower supporting column 102 and a workbench 103. The lower supporting columns 102 are fixedly connected to the four corners of the top of the bottom platform 101. The workbench 103 is fixedly installed on the top of the lower supporting column 102. A lower mold mounting hole 105 is opened on the workbench 103, and the lower mold sleeve 6 is fixedly installed in the lower mold mounting hole 105; the support platform 2 is fixedly installed on the top of the workbench 103; and supporting feet 104 are fixedly connected to the four corners of the bottom of the bottom platform 101.

[0038] In order to further improve work efficiency, an electronic control system can be added, an infrared position detection sensor is installed at the end of the stroke of the shell loading cylinder 4, and an infrared position detection sensor is installed at the end of the stroke of the ejection cylinder 71, the shell loading cylinder 4 and the ejection cylinder 71 are connected to the electromagnetic control valve module, and the electromagnetic control valve module and the infrared position detection sensor are connected to the PLC controller to achieve automatic control. The physical equipment made according to the present invention has been promoted and applied in the company's production workshop. Compared with the water outlet pressed by the old hydraulic shell loading machine, statistics show that the new water outlet has not had any accidents of steel seepage in the fire mud seam at the connection of the lower slide plate water outlet caused by the knife edge seam in the past two years, and the effect is remarkable; and the shell loading operation time is reduced from 45s to 15s, which significantly improves work efficiency.

[0039] In actual use, firstly, fire mud 82 is applied on the surface of the drain refractory 83, and the thickness of the fire mud is greater than the thickness of the fire mud layer in the finished drain body 8, and then the drain steel shell 81 is put on the drain refractory 83 coated with the fire mud 82; Figure 2 , Figure 5 and Figure 6 As shown, the small diameter end of the water outlet steel shell 81 is inserted into the step hole 61 of the lower mold sleeve 6, so that the variable diameter step 85 is in contact with the positioning platform 62, and then the shell loading program is started by the PLC controller, and the shell loading cylinder 4 starts to extend, pushing the moving cylinder 302 and the upper mold sleeve 5 downward, and the pressing platform 51 enters into the mother-and-child platform 84 and is completely fitted with the concave surface of the mother-and-child platform 84, and the water outlet refractory material 83 is completely pressed into the water outlet steel shell 81 until the triangular pressure plate 301 presses the fixed height column 303. At this time, the infrared position detection sensor detects that the moving cylinder 302 is pressed into place, and the PLC controller controls the shell loading cylinder 4 to maintain pressure for 5 seconds, and then the shell loading cylinder 4 is reset. When the infrared position detection sensor detects that the moving cylinder 302 is completely reset, the PLC controller controls the ejection cylinder 71 to extend, driving the conical ejector rod 73 to extend into the flow steel hole in the center of the water outlet refractory material 83, and ejecting the flat water outlet body 8 upward.

[0040] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. An automated pneumatic shell filling machine capable of avoiding the formation of a knife-edge seam, comprising a base (1), a support platform (2) and a motion guide mechanism (3), wherein the support platform (2) is fixedly mounted on the top of the base (1), the motion guide mechanism (3) is slidably fitted on the support platform (2), and a shell filling cylinder (4) is mounted on the top of the motion guide mechanism (3), characterized in that: An upper die sleeve (5) is coaxially connected to the bottom of the motion guide mechanism (3), and a lower die sleeve (6) is fixedly installed on the base (1); the upper die sleeve (5) and the lower die sleeve (6) are coaxially arranged; a water outlet refractory material (83) with an excessive amount of fire mud (82) on the surface is pre-placed into a water outlet steel shell (81) with the water head downward; the water outlet steel shell (81) together with the water outlet refractory material (83) with an excessive amount of fire mud (82) on the surface is installed in the lower die sleeve (6); the outer wall of the water outlet steel shell (81) at the diameter reduction step (85) is aligned with the lower die sleeve ( 6) contacts the inner wall step to form a positioning connection, the shell-loading cylinder (4) extends to push the motion guide mechanism (3), so that the upper mold sleeve (5) enters into the mother-and-child platform (84) on the top of the downspout refractory material (83) for connecting with the lower slide plate (13), and the upper mold sleeve (5) contacts the concave surface of the mother-and-child platform (84) to make the downspout refractory material (83) move into the downspout steel shell (81) and squeeze out excess fire mud (82) until the downspout refractory material (83) completely enters into the downspout steel shell (81) to form the downspout body (8).

2. The automatic pneumatic shell filling machine capable of avoiding the formation of knife-edge seams according to claim 1, characterized in that: A press platform (51) is formed on one side wall of the upper mold sleeve (5) facing the lower mold sleeve (6); the outer diameter of the press platform (51) is less than or equal to the inner diameter of the mother-and-child platform (84) at the top end of the water inlet refractory material (83); the axial length of the press platform (51) is greater than or equal to the depth of the mother-and-child platform (84); after the upper mold sleeve (5) extends into the mother-and-child platform (84), the end face of the press platform (51) fits with the concave surface of the mother-and-child platform (84).

3. The automatic pneumatic shell filling machine capable of avoiding the formation of knife-edge seams according to claim 2, characterized in that: The lower die sleeve (6) is provided with a stepped hole (61) which is coaxially arranged with the pressing platform (51). A positioning platform (62) is provided on the inner wall of the stepped hole (61). The inner diameter of the stepped hole (61) matches the outer diameter of the lower water inlet steel shell (81).

4. The automatic pneumatic shell filling machine capable of avoiding the formation of knife-edge seams according to claim 3, characterized in that: The end surface of the pressing platform (51) and the table surface of the positioning platform (62) are both perpendicular to the axis of the drain body (8).

5. The automatic pneumatic shell filling machine capable of avoiding the formation of knife-edge seams according to claim 1, characterized in that: The invention also comprises an ejection mechanism (7), wherein the ejection mechanism (7) is arranged directly below the lower die sleeve (6); the ejection mechanism (7) comprises an ejection cylinder (71) and a conical ejector rod (73); the ejection cylinder (71) and the motion guide mechanism (3) are coaxially arranged; the cylinder body of the ejection cylinder (71) is fixedly connected to the base (1); the conical ejector rod (73) is coaxially fixedly connected to the end of the piston rod of the ejection cylinder (71); and the large diameter end of the conical ejector rod (73) is fixedly connected to the end of the piston rod of the ejection cylinder (71).

6. The automatic pneumatic shell filling machine capable of avoiding the formation of knife-edge seams according to claim 5, characterized in that: A mud storage bucket (72) is arranged just above the cylinder body of the ejection cylinder (71); the mud storage bucket (72) is fixedly connected to the base (1) via a bracket; the conical ejector rod (73) is located in the mud storage bucket (72); and the piston rod of the ejection cylinder (71) passes through the mud storage bucket (72) and is fixedly connected to the end of the conical ejector rod (73).

7. The automatic pneumatic shell filling machine capable of avoiding the formation of knife-edge seams according to claim 1, characterized in that: The support platform (2) comprises three upper supporting columns (201), a supporting plate (202) and a top cover plate (203); the three supporting columns (201) are respectively and vertically fixedly mounted on the top of the base (1); the top cover plate (203) is fixed on the top ends of the three supporting columns (201); and the supporting plate (202) is fixed on the middle parts of the three supporting columns (201); the cylinder body of the shell-loading cylinder (4) is fixedly mounted on the top cover plate (203); and the motion guide mechanism (3) is slidably fitted on the supporting plate (202).

8. The automatic pneumatic shell filling machine capable of avoiding the formation of knife-edge seams according to claim 7, characterized in that: The motion guide mechanism (3) comprises a triangular pressure plate (301), a motion cylinder (302) and a positioning guide sleeve (304); a fixing hole is formed through the support plate (202); the positioning guide sleeve (304) is fixedly installed in the fixing hole; the motion cylinder (302) passes through the positioning guide sleeve (304) and is slidably matched with the motion cylinder (302); the triangular pressure plate (301) is fixedly connected to the top of the motion cylinder (302); the upper mold sleeve (5) is fixedly installed on the bottom of the motion cylinder (302); and the piston rod end of the shell loading cylinder (4) is fixedly connected to the triangular pressure plate (301).

9. The automatic pneumatic shell filling machine capable of avoiding the formation of knife-edge seams according to claim 8, characterized in that: A height-fixing column (303) is fixedly arranged directly below each corner of the triangular pressure plate (301), and the three height-fixing columns (303) are fixedly installed on the top of the support plate (202).

10. The automatic pneumatic shell filling machine capable of avoiding the formation of knife-edge seams according to claim 1, characterized in that: The base (1) comprises a bottom platform (101), a lower supporting column (102) and a workbench (103); the bottom platform (101) is fixedly connected to the four corners of its top with the lower supporting column (102); the workbench (103) is fixedly mounted on the top of the lower supporting column (102); a lower die mounting hole (105) is provided on the workbench (103); the lower die sleeve (6) is fixedly mounted in the lower die mounting hole (105); the support platform (2) is fixedly mounted on the top of the workbench (103); and the bottom four corners of the bottom of the bottom platform (101) are fixedly connected to supporting feet (104).

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