Casting forming device for cooling tower circulating water pump shell

Abstract

The invention discloses a cooling tower circulating water pump shell casting forming device which comprises a casting mechanism, the casting mechanism comprises a bottom plate and a top plate, and a supporting column is fixedly connected between the bottom plate and the top plate. Limiting guide rails are fixedly connected to the surfaces of the sides, close to each other, of the bottom plate and the top plate correspondingly, and limiting grooves are formed in the limiting guide rails. Flowing of metal liquid is accelerated and promoted by means of the centrifugal effect, so that the metal liquid firstly flows towards the side away from the pouring gate and is converged, the side away from the pouring gate is preferentially filled with the metal liquid, filling is completed inwards in sequence after saturation, and in the saturated filling and casting mode which is conducted inwards in sequence, the metal liquid can be kept in the casting process and before unsaturated filling, and the metal liquid can be fully filled. And a gap is reserved between the upper surface of the inner side wall of the mold and the metal liquid, so that air can be smoothly exhausted, the internal air can be smoothly exhausted, and bubbles and sand holes are effectively prevented from being generated.

Description

Technical Field

[0001] The invention relates to the field of casting and molding, and in particular to a casting and molding device for a cooling tower circulating water pump casing. Background Art

[0002] The shell of the circulating water pump for cooling tower is usually made by casting. The general process is to inject the smelted liquid metal into a pre-prepared casting mold by pouring, injection, etc., and then wait for cooling and molding, and then demold the casting from the casting mold to obtain the circulating water pump shell casting.

[0003] When the existing cooling tower circulating water pump casing casting molding device is used, due to the complex shape of the pump casing, it involves many structures such as bending and drafting. Considering factors such as exhaust and smooth flow of molten metal, the casting port is generally set away from the center of the casting mold. However, during the casting process, because the flow of molten metal liquid is difficult to control, the flow and distribution of the metal liquid are uneven, the air in the mold cavity is difficult to exhaust, bubbles will be formed, and sand holes will be formed in the formed casing. Summary of the invention

[0004] The purpose of the present invention is to solve the technical problems existing in the prior art that due to the complex shape of the pump casing, there are many structures involved such as bending and drafting, and considering factors such as exhaust and smooth flow of molten metal, the casting port is generally set away from the center of the casting mold. However, during the casting process, because the flow of molten metal liquid is difficult to control, the flow and distribution of the metal liquid are uneven, the air in the mold cavity is difficult to exhaust, bubbles will be formed, and sand holes will be formed in the formed casing. A cooling tower circulating water pump casing casting molding device is proposed.

[0005] The present invention adopts the following technical solutions:

[0006] A casting molding device for a cooling tower circulating water pump casing comprises a casting mechanism, wherein the casting mechanism comprises a bottom plate and a top plate, a support column is fixedly connected between the bottom plate and the top plate, a limiting guide rail is fixedly connected to the surface of one side of the bottom plate and the top plate close to each other, a limiting groove is opened on the limiting guide rail, a plurality of limiting rods are slidably connected in the limiting groove, two connecting sleeves are installed on the plurality of limiting rods, a casting mold is installed between the plurality of connecting sleeves through an adaptive connecting pipe, the casting mold comprises an upper mold and a lower mold, a plurality of feet are symmetrically fixedly connected to the bottom side surface of the bottom plate, a first driving motor is installed on the bottom side surface of the bottom plate, a driving shaft penetrating the bottom plate is fixedly connected to the output end of the first driving motor, and a center adjustment component for driving the lower mold to rotate is installed between the driving shaft and the lower mold.

[0007] Preferably, the center adjustment assembly includes a threaded connection seat fixedly connected to the driving shaft, a limiting frame fixedly connected to the bottom side surface of the lower mold, the threaded connection seat is slidably connected in the limiting frame, two through holes are symmetrically opened on the limiting frame, a threaded rod is rotatably connected in the through hole, the threaded rod is threadedly connected to the threaded connection seat, a second driving motor is installed on the outer surface of the limiting frame, and the output end of the second driving motor is fixedly connected to one end of the threaded rod.

[0008] Preferably, the adaptive connecting tube comprises a first tube body and a second tube body, the first tube body is fixedly connected to the connecting sleeve, the second tube body is fixedly connected to the casting mold, and the first tube body is slidably connected to the second tube body.

[0009] Preferably, pressure springs are fixedly connected to an inner surface of the first tube body and an inner surface of the second tube body, and a pressure-sensitive control switch is installed between the two pressure springs. The pressure-sensitive control switch is electrically connected to the first drive motor and is used to control the speed of the first drive motor.

[0010] Preferably, the connecting sleeve includes two types: an adapter sleeve and a threaded sleeve. The adapter sleeve is used for installing the upper mold, and the threaded sleeve is used for installing the lower mold. The limiting rod includes a mounting rod, and the mounting rod is provided with a mounting groove and a threaded groove. The adapter sleeve is threadedly connected to the threaded groove, and the threaded sleeve is rotatably connected in the mounting groove. A unified mold opening and closing mechanism is installed between the top plate and the limiting rod.

[0011] Preferably, the unified mold opening and closing mechanism includes a mounting shaft, a center hole is opened on the top plate, a first limit sleeve and a second limit sleeve are respectively installed on the mounting shaft, the first limit sleeve is rotatably connected in the center hole, the second limit sleeve is rotatably connected to the second gear, the limit rod is fixedly connected to the first gear meshing with the second gear, and a portable locking assembly is installed on the mounting shaft.

[0012] Preferably, the portable locking assembly includes a plurality of slots symmetrically opened on the second gear, a movable plate is slidably connected to the mounting shaft, a plurality of locking holes are symmetrically opened on the top plate, a plurality of locking rods matching the locking holes are symmetrically fixedly connected on the bottom side surface of the movable plate, and a rotating handle is fixedly connected to the movable plate.

[0013] The beneficial effects of the present invention are:

[0014] 1. The centrifugal effect is used to accelerate the flow of the metal liquid, so that the metal liquid first flows to the side away from the casting port and converges, and first fills the side away from the casting port. After saturation, the filling is completed inward in sequence. This saturated filling casting method that is carried out inward in sequence can keep a gap between the upper surface of the inner wall of the mold and the metal liquid before saturation during the casting process, so that the air can be discharged smoothly, so that the internal air can be discharged smoothly, thereby effectively avoiding the generation of bubbles and sand holes;

[0015] 2. With the help of the migration change of the center of the circle during centrifugal motion, the internal pressure of the metal liquid is constantly changing, further avoiding the generation of bubbles and sand holes. At the same time, since the position of the drive shaft relative to the casting mold is adjustable, it can be applied to the casting molding of casting molds with casting ports designed in various positions;

[0016] 3. During the mold opening process of the upper and lower molds, only the locking of the second gear needs to be performed manually, and other processes can be completed automatically. Therefore, it can effectively avoid safety risks such as burns during manual mold opening by staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a cooling tower circulating water pump casing casting device proposed by the present invention;

[0018] Figure 2 A schematic diagram of a part of the structure of a casting mechanism of a cooling tower circulating water pump casing casting molding device proposed by the present invention;

[0019] Figure 3 A schematic diagram of a portion of the structure of a casting device for a cooling tower circulating water pump housing proposed by the present invention;

[0020] Figure 4 A schematic diagram of the connection structure of a connecting sleeve, an adaptive connecting pipe and a casting mold of a casting molding device for a cooling tower circulating water pump housing proposed by the present invention;

[0021] Figure 5 This is a schematic structural diagram of a first tube body of a cooling tower circulating water pump casing casting device proposed by the present invention;

[0022] Figure 6 This is a schematic structural diagram of a second tube body of a cooling tower circulating water pump casing casting device proposed by the present invention;

[0023] Figure 7 A schematic structural diagram of a pressure spring of a cooling tower circulating water pump casing casting device proposed by the present invention;

[0024] Figure 8A schematic structural diagram of a limit rod of a cooling tower circulating water pump casing casting device proposed by the present invention;

[0025] Fig. 9 A schematic structural diagram of a threaded connection seat of a cooling tower circulating water pump casing casting device proposed by the present invention;

[0026] Fig.10 A schematic structural diagram of a threaded rod of a cooling tower circulating water pump casing casting device proposed by the present invention;

[0027] Fig.11 A partial structural schematic diagram of a unified mold opening and closing mechanism of a cooling tower circulating water pump casing casting device proposed by the present invention;

[0028] Fig.12 This is a schematic structural diagram of a second gear of a cooling tower circulating water pump casing casting device proposed by the present invention;

[0029] Fig.13 The present invention is a schematic diagram of the internal structure of a cooling tower circulating water pump casing casting device.

[0030] In the figure: 1 casting mechanism, 11 bottom plate, 12 top plate, 121 center hole, 122 locking hole, 13 supporting column, 14 limiting guide rail, 141 limiting groove, 15 limiting rod, 151 mounting rod, 152 mounting groove, 153 threaded groove, 154 first gear, 16 connecting sleeve, 161 adapter sleeve, 162 threaded sleeve, 17 adaptive connecting pipe, 171 first tube body, 172 second tube body, 173 pressure spring, 174 pressure sensitive control switch, 18 casting mold, 181 upper mold, 182 lower mold, 183 limiting frame, 184 through hole, 19 first driving motor, 191 driving shaft, 192 threaded connecting seat, 193 threaded rod, 194 second driving motor, 2 unified opening and closing mold mechanism, 21 mounting shaft, 22 first limiting sleeve, 23 second limiting sleeve, 24 second gear, 25 slot, 26 movable plate, 27 locking rod, 28 rotating handle. DETAILED DESCRIPTION

[0031] See also Figure 1-Figure 13A casting molding device for a cooling tower circulating water pump housing comprises a casting mechanism 1, wherein the casting mechanism 1 comprises a bottom plate 11 and a top plate 12, wherein a support column 13 is fixedly connected between the bottom plate 11 and the top plate 12, wherein a limiting guide rail 14 is fixedly connected to the surface of one side of the bottom plate 11 and the top plate 12 close to each other, wherein a limiting groove 141 is formed on the limiting guide rail 14, wherein a plurality of limiting rods 15 are slidably connected in the limiting groove 141, wherein two connecting sleeves 16 are installed on the plurality of limiting rods 15, wherein the plurality of connecting sleeves 16 are connected to each other. A casting mold 18 is installed through the adaptive connecting tube 17, and the casting mold 18 includes an upper mold 181 and a lower mold 182. The casting port is set on the upper mold 181, and a plurality of feet are symmetrically fixedly connected to the bottom surface of the base plate 11. A first drive motor 19 is installed on the bottom surface of the base plate 11, and a drive shaft 191 that passes through the base plate 11 is fixedly connected to the output end of the first drive motor 19. A center adjustment component for driving the lower mold 182 to rotate is installed between the drive shaft 191 and the lower mold 182.

[0032] When the existing cooling tower circulating water pump casing casting molding device is used, due to the complex shape of the pump casing, it involves many structures such as bending and drafting. Considering factors such as exhaust and smooth flow of molten metal, the pouring port is generally set away from the center of the casting mold. However, during the casting process, because the flow of molten metal liquid is difficult to control, the flow and distribution of the molten metal liquid are uneven, and the air in the mold cavity is difficult to exhaust, bubbles will be formed, and sand holes will be formed in the formed shell. In order to solve the above problems, the present invention is provided with a limiting guide rail 14, a limiting rod 15, a connecting sleeve 16, an adaptive connecting pipe 17, a casting mold 18, a first drive motor 19 and a center adjustment component, wherein the drive shaft 191 and the pouring port are coaxially arranged. Since the upper mold 181 and the lower mold 182 are both installed on multiple limiting rods 15 through the connecting sleeve 16 and the adaptive connecting pipe 17, and the multiple limiting rods 15 are limited in the limiting groove 141, and the limiting groove 141 is coaxially arranged with the drive shaft 191, the limiting rod 15, The connecting sleeve 16, the adaptive connecting tube 17 and the casting mold 18 can all rotate around the center of the driving shaft 191. At the same time, the multiple connecting sleeves 16 and the adaptive connecting tubes 17 are respectively arranged perpendicular to the four outer sides of the upper mold 181 and the lower mold 182. Therefore, the multiple connecting sleeves 16 and the adaptive connecting tubes 17 have a positioning effect on the upper mold 181 and the lower mold 182. Because the connecting sleeves 16 on the upper mold 181 and the lower mold 182 are all installed on the limiting rod 15, the upper mold 181 and the lower mold 182 are always aligned without manual adjustment.

[0033] During casting, the first drive motor 19 is started, and the output end of the first drive motor 19 drives the drive shaft 191 to rotate. The drive shaft 191 drives the lower mold 182 to rotate around the drive shaft 191 through the center adjustment component. The lower mold 182 drives the upper mold 181 above it to rotate synchronously around the center of the drive shaft 191 through the limit rod 15, the connecting sleeve 16 and the adaptive connecting tube 17. Since the casting port is coaxial with the drive shaft 191, the casting mold 18 also rotates around the casting port, which will not interfere with the normal casting work. Tool 18 rotates around the casting port, and under the action of centrifugation, accelerates the flow of molten metal, so that the molten metal first flows to and converges on the side away from the casting port, preferentially filling the side away from the casting port, and then filling inwards in sequence after saturation. This saturated filling casting method that is carried out inwards in sequence can maintain a gap between the upper surface of the inner wall of the mold and the molten metal before saturated filling during the casting process, so as to ensure that the air can be discharged smoothly, thereby enabling the internal air to be discharged smoothly, thereby effectively avoiding the generation of bubbles and sand holes.

[0034] like Figure 4 , Figure 6 , Fig. 9 and Fig.10 As shown, the center adjustment component includes a threaded connection seat 192 fixedly connected to the driving shaft 191, a limiting frame 183 is fixedly connected to the bottom side surface of the lower mold 182, the threaded connection seat 192 is slidably connected in the limiting frame 183, two through holes 184 are symmetrically opened on the limiting frame 183, a threaded rod 193 is rotatably connected in the through hole 184, the threaded rod 193 is threadedly connected to the threaded connection seat 192, a second driving motor 194 is installed on the outer surface of the limiting frame 183, and the output end of the second driving motor 194 is fixedly connected to one end of the threaded rod 193.

[0035] Due to the double restriction of the limiting effect of the limiting frame 183 on the threaded connection seat 192 and the threaded connection effect between the threaded rod 193 and the threaded connection seat 192, the threaded connection seat 192 is limited and fixed in the limiting frame 183. When the driving shaft 191 rotates, the driving shaft 191 drives the threaded connection seat 192 to rotate, and the threaded connection seat 192 drives the lower mold 182 to rotate around the driving shaft 191 through the threaded rod 193 and the limiting frame 183.

[0036] After the casting is completed, in order to ensure that the metal liquid is evenly distributed inside the mold and to further avoid the generation of bubbles and sand holes, and also to accelerate cooling, the second drive motor 194 can be started and controlled to rotate, and the output end of the second drive motor 194 drives the threaded rod 193 to rotate, with the help of the threaded connection between the threaded rod 193 and the threaded connection seat 192, and the limiting effect of the limit frame 183 on the threaded connection seat 192, but because the position of the first drive motor 19 is fixed, as the threaded rod 193 rotates, the limit frame 183 drives the casting mold 18 along the threaded connection seat 192. The rod 193 moves in the direction of the casting mold 18, so that the center of the casting mold 18 gradually approaches the threaded connection seat 192 and finally coincides with the center of the drive shaft 191. In this process, the casting mold 18 is rotated around the drive shaft 191 to accelerate cooling. At the same time, the migration of the center of the circle in the centrifugal motion makes the internal pressure of the metal liquid constantly change, further avoiding the generation of bubbles and sand holes. At the same time, since the position of the drive shaft 191 relative to the casting mold 18 is adjustable, it can be suitable for the casting molding of casting molds 18 with casting mouth designs in various positions.

[0037] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the adaptive connecting tube 17 includes a first tube body 171 and a second tube body 172 . The first tube body 171 is fixedly connected to the connecting sleeve 16 , and the second tube body 172 is fixedly connected to the casting mold 18 . The first tube body 171 is slidably connected in the second tube body 172 .

[0038] Due to the limited sliding connection between the first tube body 171 and the second tube body 172, when the position of the casting mold 18 changes, the length of the adaptive connecting tube 17 will adaptively change. However, affected by the limiting effect of the adaptive connecting tube 17 on the upper mold 181 and the lower mold 182, even if the length of the adaptive connecting tube 17 changes, it can still cooperate with the limiting rod 15 and the connecting sleeve 16 to position the upper mold 181 and the lower mold 182, so as to keep the upper mold 181 and the lower mold 182 always aligned. The specific principle is that no matter how the length of the adaptive connecting tube 17 changes, the arrangement of the four adaptive connecting tubes 17 can be regarded as two intersecting straight lines, and the intersection of the two straight lines is always the center of the upper mold 181 and the lower mold 182. Because the connecting sleeves 16 on the upper mold 181 and the lower mold 182 are both arranged on the limiting rod 15, the adaptive connecting tubes 17 on the upper mold 181 and the lower mold 182 are kept parallel and aligned, so the intersection of the two is always aligned.

[0039] like Figure 7 and Fig.13As shown, pressure springs 173 are fixedly connected to an inner surface of the first tube body 171 and an inner surface of the second tube body 172, and a pressure-sensitive control switch 174 is installed between the two pressure springs 173. The pressure-sensitive control switch 174 is electrically connected to the first drive motor 19 and is used to control the rotational speed of the first drive motor 19.

[0040] The length of the second tube body 172 near the casting port side is set longer than the other second tube bodies 172, and the pressure spring 173 and the pressure-sensitive control switch 174 are arranged in this longer second tube body 172. When the limit frame 183 drives the casting mold 18 to move along the direction of the threaded rod 193, so that the center of the casting mold 18 gradually approaches the threaded connection seat 192 and finally coincides with the center of the drive shaft 191, the second tube body 172 continuously approaches the limit rod 15 as the casting mold 18 moves, so that the pressure on the pressure-sensitive control switch 174 increases, and the resistance of the internal varistor decreases as the pressure increases, thereby increasing the current, automatically increasing the speed of the first drive motor 19 in a self-feedback manner, and further increasing the internal pressure of the metal liquid. As for how the pressure-sensitive control switch 174 is connected to and controls the first drive motor 19, the mature wireless remote control circuit technology in the prior art can be adopted, which will not be described in detail here.

[0041] like Figure 1 , Figure 3 , Figure 5 and Figure 8 As shown, the connecting sleeve 16 includes an adapter sleeve 161 and a threaded sleeve 162. The adapter sleeve 161 is used for installing the upper mold 181, and the threaded sleeve 162 is used for installing the lower mold 182. The limiting rod 15 includes a mounting rod 151. The mounting rod 151 is provided with a mounting groove 152 and a threaded groove 153. The adapter sleeve 161 is threadedly connected to the threaded groove 153, and the threaded sleeve 162 is rotatably connected in the mounting groove 152. A unified mold opening and closing mechanism 2 is installed between the top plate 12 and the limiting rod 15.

[0042] By rotating the mounting rod 151, with the help of the threaded connection between the adapter sleeve 161 and the threaded groove 153, and in cooperation with the casting mold 18 and the second tube body 172, the limiting effect of the first tube body 171 and the adapter sleeve 161 can be achieved, so that the adapter sleeve 161 can be driven to move upward along the threaded groove 153, thereby driving the upper mold 181 to rise and fall, thereby completing the mold opening and closing.

[0043] like Figure 1 , Figure 3 , Fig.11 and Fig.12As shown, the unified mold opening and closing mechanism 2 includes a mounting shaft 21, a center hole 121 is opened on the top plate 12, a first limiting sleeve 22 and a second limiting sleeve 23 are respectively installed on the mounting shaft 21, the first limiting sleeve 22 is rotatably connected in the center hole 121, the second limiting sleeve 23 is rotatably connected to the second gear 24, the limiting rod 15 is fixedly connected to the first gear 154 meshing with the second gear 24, and a portable locking assembly is installed on the mounting shaft 21.

[0044] like Fig.11 and Fig.12 As shown, the portable locking assembly includes a plurality of slots 25 symmetrically opened on the second gear 24, a movable plate 26 is slidably connected to the mounting shaft 21, a plurality of locking holes 122 are symmetrically opened on the top plate 12, a plurality of locking rods 27 matching the locking holes 122 are symmetrically fixedly connected on the bottom side surface of the movable plate 26, and a rotating handle 28 is fixedly connected to the movable plate 26.

[0045] After the casting is cooled and formed, it needs to be demoulded and taken out. In this case, the driving shaft 191 is aligned with the center of the casting mold 18. First, turn the rotating handle 28 to drive the movable plate 26 and the locking rod 27 to rotate, so that the locking rod 27 and the locking hole 122 are aligned. Then, the locking rod 27 is inserted into the locking hole 122 and extends into the slot 25 on the second gear 24. In this state, the locking rod 27 can prevent the rotation of the second gear 24 by being stuck in the slot 25. Next, start and control the first driving motor 19 to rotate. The first driving motor 19 drives the casting mold 18, the adaptive connecting pipe 17, the connecting sleeve 16 and the limit rod 15 to rotate around the driving shaft 191 through the center adjustment component. The second gear 24 is locked in the slot 25 by the locking rod 27 and cannot rotate. Therefore, as the limit rod 15 rotates around the drive shaft 191, combined with the meshing connection between the first gear 154 and the second gear 24, the mounting rod 151 will rotate around its own center while rotating along the limit slot 141 around the drive shaft 191, thereby driving the multiple adapter sleeves 161 to drive the adaptive connecting tube 17 and the upper mold 181 to move upward synchronously to complete the mold opening between the upper mold 181 and the lower mold 182. During the whole process, only the locking of the second gear 24 needs to be performed manually, and other processes can be completed automatically. Therefore, it can effectively avoid safety risks such as burns during manual mold opening by staff.

[0046] In the present invention, during casting, the first drive motor 19 is started, and the output end of the first drive motor 19 drives the drive shaft 191 to rotate. Due to the dual restrictions of the limiting effect of the limiting frame 183 on the threaded connection seat 192 and the threaded connection effect between the threaded rod 193 and the threaded connection seat 192, the threaded connection seat 192 is limited and fixed in the limiting frame 183. When the drive shaft 191 rotates, the drive shaft 191 drives the threaded connection seat 192 to rotate, and the threaded connection seat 192 then drives the lower mold 182 to rotate around the drive shaft 191 through the threaded rod 193 and the limiting frame 183. The lower mold 182 drives the upper mold 181 above it to rotate synchronously with the drive shaft 191 through the limiting rod 15, the connecting sleeve 16 and the adaptive connecting tube 17. The casting mold 18 rotates around the center of the casting port. Since the casting port is coaxial with the driving shaft 191, the casting mold 18 also rotates around the casting port, which will not interfere with the normal casting work. As the casting mold 18 rotates around the casting port, under the centrifugal effect, the flow of the metal liquid is accelerated, so that the metal liquid first flows to the side away from the casting port and converges, and preferentially fills the side away from the casting port. After saturation, the filling is completed inward in sequence. This saturated filling casting method that is carried out inward in sequence can maintain a gap between the upper surface of the inner wall of the mold and the metal liquid before the saturated filling during the casting process, so that the air can be discharged smoothly, so that the internal air can be discharged smoothly, thereby effectively avoiding the generation of bubbles and sand holes;

[0047] After the casting is completed, in order to ensure that the metal liquid is evenly distributed inside the mold and to further avoid the generation of bubbles and sand holes, and also to accelerate cooling, the second drive motor 194 can be started and controlled to rotate, and the output end of the second drive motor 194 drives the threaded rod 193 to rotate, with the help of the threaded connection between the threaded rod 193 and the threaded connection seat 192, and the limiting effect of the limit frame 183 on the threaded connection seat 192, but because the position of the first drive motor 19 is fixed, as the threaded rod 193 rotates, the limit frame 183 drives the casting mold 18 along the threaded connection seat 192. The rod 193 moves in the direction of the threaded connection seat 192, so that the center of the casting mold 18 gradually approaches the threaded connection seat 192 and finally coincides with the center of the driving shaft 191. In this process, the cooling is accelerated by utilizing the rotation process of the casting mold 18 around the driving shaft 191. At the same time, the internal pressure of the metal liquid is constantly changed by utilizing the migration change of the center of the circle in the centrifugal motion, so as to further avoid the generation of bubbles and sand holes. At the same time, since the position of the driving shaft 191 relative to the casting mold 18 is adjustable, it can be applied to the casting molding of the casting mold 18 with a plurality of casting port designs in different positions.

[0048] After the casting is cooled and formed, when it needs to be demoulded and taken out, first turn the rotating handle 28 to drive the movable plate 26 and the locking rod 27 to rotate, so that the locking rod 27 and the locking hole 122 are aligned, and then insert the locking rod 27 into the locking hole 122 and extend it into the slot 25 on the second gear 24. In this state, the locking rod 27 can be stuck in the slot 25 to prevent the rotation of the second gear 24. Next, start and control the first drive motor 19 to rotate. The first drive motor 19 drives the casting mold 18, the adaptive connecting pipe 17, the connecting sleeve 16 and the limit rod 15 to rotate around the drive shaft 191 through the center adjustment component. Since the second gear 24 is locked by the locking rod 27 It is locked in the card slot 25 and cannot rotate. Therefore, as the limit rod 15 rotates around the drive shaft 191, combined with the meshing connection between the first gear 154 and the second gear 24, the installation rod 151 will rotate around its own center while rotating along the limit slot 141 around the drive shaft 191, thereby driving the multiple adapter sleeves 161 to drive the adaptive connecting tube 17 and the upper mold 181 to move up synchronously, completing the mold opening between the upper mold 181 and the lower mold 182. During the whole process, only the locking of the second gear 24 needs to be performed manually, and other processes can be completed automatically. Therefore, it can effectively avoid the safety risks such as burns in the manual mold opening process of the staff.

Claims

1. A cooling tower circulating water pump casing casting device, comprising a casting mechanism (1), characterized in that: The casting mechanism (1) comprises a bottom plate (11) and a top plate (12), a support column (13) being fixedly connected between the bottom plate (11) and the top plate (12), a limiting guide rail (14) being fixedly connected to the surfaces of the bottom plate (11) and the top plate (12) on one side close to each other, a limiting groove (141) being provided on the limiting guide rail (14), a plurality of limiting rods (15) being slidably connected in the limiting groove (141), two connecting sleeves (16) being installed on the plurality of limiting rods (15), and the plurality of connecting sleeves (16) being connected to each other by adaptive The connecting pipe (17) is installed with a casting mold (18), and the casting mold (18) includes an upper mold (181) and a lower mold (182). A plurality of feet are symmetrically fixedly connected to the bottom surface of the bottom plate (11), and a first driving motor (19) is installed on the bottom surface of the bottom plate (11). A driving shaft (191) that passes through the bottom plate (11) is fixedly connected to the output end of the first driving motor (19), and a center adjustment component for driving the lower mold (182) to rotate is installed between the driving shaft (191) and the lower mold (182).

2. A cooling tower circulating water pump casing casting device according to claim 1, characterized in that: The center adjustment component comprises a threaded connection seat (192) fixedly connected to the driving shaft (191); a limiting frame (183) is fixedly connected to the bottom side surface of the lower mold (182); the threaded connection seat (192) is slidably connected in the limiting frame (183); two through holes (184) are symmetrically opened on the limiting frame (183); a threaded rod (193) is rotatably connected in the through hole (184); the threaded rod (193) is threadedly connected to the threaded connection seat (192); a second driving motor (194) is installed on the outer surface of the limiting frame (183); and the output end of the second driving motor (194) is fixedly connected to one end of the threaded rod (193).

3. A cooling tower circulating water pump casing casting device according to claim 1, characterized in that: The adaptive connecting tube (17) comprises a first tube body (171) and a second tube body (172); the first tube body (171) is fixedly connected to the connecting sleeve (16); the second tube body (172) is fixedly connected to the casting mold (18); and the first tube body (171) is slidably connected inside the second tube body (172).

4. A cooling tower circulating water pump casing casting device according to claim 3, characterized in that: A pressure spring (173) is fixedly connected to an inner surface of the first tube body (171) and an inner surface of the second tube body (172); a pressure-sensitive control switch (174) is installed between the two pressure springs (173); the pressure-sensitive control switch (174) is electrically connected to the first drive motor (19); and the pressure-sensitive control switch (174) is used to control the rotation speed of the first drive motor (19).

5. The cooling tower circulating water pump casing casting device according to claim 1, characterized in that: The connecting sleeve (16) comprises two types: an adapter sleeve (161) and a threaded sleeve (162). The adapter sleeve (161) is used for installing the upper mold (181), and the threaded sleeve (162) is used for installing the lower mold (182). The limiting rod (15) comprises a mounting rod (151). The mounting rod (151) is provided with a mounting groove (152) and a threaded groove (153). The adapter sleeve (161) is threadedly connected to the threaded groove (153), and the threaded sleeve (162) is rotatably connected in the mounting groove (152). A unified mold opening and closing mechanism (2) is installed between the top plate (12) and the limiting rod (15).

6. A cooling tower circulating water pump casing casting device according to claim 5, characterized in that: The unified mold opening and closing mechanism (2) comprises a mounting shaft (21), a center hole (121) is formed on the top plate (12), a first limiting sleeve (22) and a second limiting sleeve (23) are respectively mounted on the mounting shaft (21), the first limiting sleeve (22) is rotatably connected in the center hole (121), the second limiting sleeve (23) is rotatably connected to a second gear (24), the limiting rod (15) is fixedly connected to a first gear (154) meshing with the second gear (24), and a portable locking assembly is mounted on the mounting shaft (21).

7. A cooling tower circulating water pump casing casting device according to claim 6, characterized in that: The portable locking assembly comprises a plurality of slots (25) symmetrically arranged on the second gear (24); a movable plate (26) is slidably connected to the mounting shaft (21); a plurality of locking holes (122) are symmetrically arranged on the top plate (12); a plurality of locking rods (27) matching the locking holes (122) are symmetrically fixedly connected to the bottom surface of the movable plate (26); and a rotating handle (28) is fixedly connected to the movable plate (26).

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