An automatic plastic impeller high-pressure forming equipment for removing excess material and a method of using the same

Abstract

The application discloses a kind of automatic plastic impeller high-pressure forming equipment of remaining material and its use method, equipment includes base and injection molding press;Base is provided with automatic discharge mechanism, and synchronous temperature regulating mechanism is arranged between upper die and lower die;Lower die includes fixed die holder, rotating body, movable core block, insert block, stop block, closed mold cavity, rotating propulsion assembly and drive assembly;Automatic discharge mechanism includes discharge groove, waste board, discharge assembly and support.By the above mode, in the present application, impeller is formed before and after, and insert block runs in the path of rotation, so that the demolding process is more smooth, avoid workpiece damage, and then improve the yield of finished product piece;Workpiece is formed, and discharge assembly is transferred to the direction of discharge groove, and the runner on finished product piece is blocked and removed in the process of transfer, realize the automatic removal of remaining material on finished product plastic impeller, and the removal operation standardization of runner.

Description

Technical Field

[0001] This invention relates to the field of plastic impeller molding equipment technology, specifically to an automatic excess material removal plastic impeller high-pressure molding equipment and its usage method. Background Technology

[0002] Impellers are important components in turbomachinery (such as centrifugal pumps), and plastics are widely used to replace metal materials in the manufacture of pump parts such as impellers due to their many advantages, such as light weight, high strength, easy molding and corrosion resistance.

[0003] Impellers can be broadly classified into several types: fully enclosed impellers, semi-enclosed impellers, and open impellers. Among them, fully enclosed impellers are more difficult to injection mold, and the molded workpiece will have a long flow channel left by residual material.

[0004] Chinese patent CN107457964B discloses a mold for injection molding centrifugal impellers, including a moving mold and a stationary mold. The stationary mold includes a central column and a core unit. The core unit includes an upper core block and a lower core block. The upper and lower core blocks are linked and assembled to achieve one-piece molding of the plastic impeller. However, this mold requires multiple drive units to control the operation of each moving part, which is costly and difficult to adjust. There are cavities between the blades of the closed impeller. These cavities bend inward towards the impeller, which makes demolding inconvenient. During demolding, the mold is prone to tearing the workpiece, reducing the yield of the workpiece.

[0005] Based on this, the present invention designs an automatic residual material removal plastic impeller high-pressure molding equipment and its usage method to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an automatic plastic impeller high-pressure molding equipment for removing excess material and its usage method.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An automatic material removal plastic impeller high-pressure molding equipment, comprising a base and an injection press;

[0009] The upper mold is fixedly installed at the output end of the injection molding press, and the lower mold is fixedly installed on the base. The upper mold and the lower mold cooperate to form a plastic impeller. An automatic discharge mechanism is also provided on the base, and a synchronous temperature control mechanism is provided between the upper mold and the lower mold.

[0010] The lower mold includes a fixed mold base, a rotating body, a movable core block, movable modules, a closed mold cavity, a rotary propulsion assembly, and a drive assembly. The fixed mold base is fixedly connected to the base, and the rotating body is rotatably mounted inside the fixed mold base. A movable core block is fixedly mounted at the axial center of the fixed mold base. Multiple sets of movable modules are provided on the fixed mold base, and the movable modules are distributed in a circumferential array with equal spacing around the movable core block. Multiple sets of rotary propulsion assemblies corresponding one-to-one with the movable modules are also provided on the fixed mold base. A drive assembly for rotating the rotating body is also provided on the base.

[0011] The active module includes an insert block and a stop block. The side of the stop block away from the active core block is fixedly connected to the rotary propulsion assembly, and the other side of the stop block is fixedly connected to the insert block. When the stop blocks are combined, the stop block, insert block, active core block, fixed mold base and upper mold form a closed mold cavity for forming the impeller.

[0012] The automatic discharging mechanism includes a discharging trough, a waste removal plate, a discharging component, and a support. The support and the discharging trough are fixedly installed on the front and rear sides of the base, respectively. A waste removal plate for removing flow channels is fixedly installed on the upper end of the discharging trough, and a discharging component is provided on the support.

[0013] Furthermore, the rotary propulsion assembly includes a slider, a slide rod, an outer slide groove, a through groove, and an inner slide groove. The fixed mold base has an outer slide groove, which is slidably connected to the slider. The inner bottom of the outer slide groove has a through groove, and the rotating body has an inclined inner slide groove. A slide rod is fixedly installed at the bottom of the slider, and the slide rod passes through the through groove and is slidably connected to the inner slide groove. The slider is fixedly connected to the stop block.

[0014] Furthermore, the outer grooves are designed to be arc-shaped, and all the outer grooves form a spiral structure.

[0015] Furthermore, the drive assembly includes a drive cylinder, a drive rod, a drive sleeve, and a movable groove. The drive cylinder is fixedly installed on the top of the base, the drive rod is fixedly installed on the side of the rotating body, and the fixed mold base has a movable groove that slides with the drive rod. The drive sleeve is slidably connected to the drive rod, and the output end of the drive cylinder is rotatably connected to the drive sleeve.

[0016] Furthermore, the waste removal plate is provided with a U-shaped groove at one end near the lower mold to assist in removing the flow channel.

[0017] Furthermore, the discharge assembly includes a lifting cylinder, a first-stroke cylinder, a second-stroke cylinder, and a gripper cylinder. The lifting cylinder is fixedly installed on the lower side of the base, and its output end is fixedly connected to the movable core block. The second-stroke cylinder is fixedly connected to the bracket, and its output end is fixedly connected to the first-stroke cylinder via a connecting plate. The output end of the first-stroke cylinder is fixedly equipped with a gripper cylinder for clamping the finished part.

[0018] Furthermore, the synchronous temperature control mechanism includes a pressure rod, an outer sliding sleeve, an inner piston, and an outer through groove. The pressure rod is fixedly installed at the lower end of the upper mold, and the outer sliding sleeve is fixedly installed at the upper end of the base. The lower end of the outer sliding sleeve is connected to the water inlet pipe, and the pressure rod is inserted into the outer sliding sleeve. The side wall of the inner piston is slidably connected to the inner wall of the outer sliding sleeve. An outer through groove is provided on the outer sliding sleeve, and an inner through groove is provided on the inner piston.

[0019] Furthermore, a spring reset assembly is provided on the lower side of the inner piston; in its natural state, the outer and inner through grooves are misaligned.

[0020] Furthermore, the spring reset assembly includes a spring and a retaining ring. The retaining ring is fixedly connected to the inner wall of the outer sliding sleeve and located below the inner piston. The two ends of the spring are fixedly connected to the inner piston and the retaining ring, respectively.

[0021] To better achieve the objectives of this invention, the present invention also provides a method for using an automatic desizing plastic impeller high-pressure molding equipment, comprising the following steps:

[0022] Step 1: The injection molding press moves the upper mold vertically downwards. The output end of the drive cylinder extends and moves the drive sleeve, which in turn moves the drive rod to slide in the movable groove, causing the rotating body to rotate. The inner slide groove of the rotating body drives the slider to move through the slide rod, thereby driving the insert block and the stop block to move towards the movable core block in a rotating and advancing manner until the stop blocks abut against each other and combine. After the upper mold and the lower mold are completely closed, a closed mold cavity is formed, and the raw material is injected into the closed mold cavity through the upper mold.

[0023] Step 2: During the mold closing process of the upper and lower molds, the pressure rod is inserted into the outer sliding sleeve to press down the inner piston. When the upper and lower molds are fully closed, the inner groove of the inner piston and the outer groove of the outer sliding sleeve are aligned. The water in the outer sliding sleeve flows into the water inlet pipe through the outer and inner grooves and is then fed into the temperature regulating channel of the fixed mold base. After completing the heat exchange and assisting in the forming of the workpiece, the water is discharged through the water outlet pipe. When the upper and lower molds separate, the spring reset assembly drives the inner piston to reset, and the outer and inner grooves are misaligned, stopping the injection of water.

[0024] Step 3: After the plastic impeller is injection molded, the upper mold and the lower mold separate, and the insert block is also reset by rotation to achieve the demolding process;

[0025] Step 4: The lifting cylinder lifts the finished part through the movable core block. The first stroke cylinder drives the gripper cylinder to move towards the workpiece, and the gripper cylinder clamps and fixes the workpiece. Then, the first stroke cylinder drives the workpiece to move towards the discharge chute. During the movement, the workpiece's flow channel gets stuck in the U-shaped groove of the waste removal plate and is automatically removed by the waste removal plate. The finished part is placed in the discharge chute and slides out. The lifting cylinder, the first stroke cylinder, and the second stroke cylinder are reset and ready for the next operation.

[0026] The present invention has the following technical effects:

[0027] 1. In this invention, the injection molding press drives the upper mold to move vertically downward, the drive component drives the rotating body to rotate, causing the rotary propulsion component to operate. The rotary propulsion component drives the insert block and the stop block to move towards the movable core block along a rotational path until the stop block is assembled. After the upper mold and the lower mold are closed, the raw material is injected into the closed mold cavity through the upper mold. The cavity between the blades of the impeller is formed by the insert block. After the impeller is formed, the injection molding press drives the upper mold to reset, and the insert block exits from the formed impeller along a rotational path, thereby making the demolding process smoother, avoiding damage to the workpiece, and thus improving the yield of finished parts.

[0028] 2. In this invention, after the workpiece is formed, the discharge assembly moves the workpiece toward the discharge trough. During the transfer process, the flow channel on the finished part is blocked and removed by the waste removal plate, thereby realizing the automatic removal of residual material on the finished plastic impeller, reducing manpower, and standardizing the flow channel removal operation. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0030] Figure 1 This is a perspective view of an automatic desizing plastic impeller high-pressure molding device according to the present invention;

[0031] Figure 2 This is a front view of an automatic desizing plastic impeller high-pressure molding device according to the present invention;

[0032] Figure 3 This is a perspective view of the lower component of an automatic desizing plastic impeller high-pressure molding device according to the present invention;

[0033] Figure 4 for Figure 3 A 3D view of the hidden automatic discharging mechanism;

[0034] Figure 5 This is a three-dimensional structural view of the lower mold of the present invention;

[0035] Figure 6 This is an exploded view of the lower mold of the present invention;

[0036] Figure 7 This is a perspective view of the lower synchronous temperature control mechanism of the present invention.

[0037] The labels in the diagram represent:

[0038] 100. Base; 200. Injection press; 300. Upper mold; 400. Lower mold; 410. Fixed mold base; 420. Rotating body; 430. Movable core block; 440. Insert block; 450. Stop block; 460. Closed mold cavity; 470. Rotary propulsion assembly; 471. Slider; 472. Slide rod; 473. External slide groove; 474. Through groove; 475. Internal slide groove; 480. Drive assembly; 481. Drive cylinder; 482. Drive rod; 483. Drive sleeve; 484, movable groove; 500, synchronous temperature control mechanism; 510, pressure rod; 520, outer sliding sleeve; 530, inner piston; 540, outer through groove; 550, inner through groove; 560, spring; 570, fixed ring; 600, automatic discharge mechanism; 610, discharge chute; 620, waste plate removal; 630, discharge assembly; 640, bracket; 631, lifting cylinder; 632, first stroke cylinder; 633, second stroke cylinder; 634, gripper cylinder. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0040] The present invention will be further described below with reference to embodiments.

[0041] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0042] Example 1

[0043] Please refer to the instruction manual appendix. Figure 1-7 An automatic plastic impeller high-pressure molding equipment for removing excess material includes a base 100 and an injection press 200;

[0044] The upper mold 300 is fixedly installed at the output end of the injection molding press 200, and the lower mold 400 is fixedly installed on the base 100. The upper mold 300 and the lower mold 400 cooperate to form a plastic impeller. An automatic discharge mechanism 600 is also provided on the base 100, and a synchronous temperature control mechanism 500 is provided between the upper mold 300 and the lower mold 400.

[0045] The lower mold 400 includes a fixed mold base 410, a rotating body 420, a movable core block 430, movable modules, a closed mold cavity 460, a rotary propulsion assembly 470, and a drive assembly 480. The fixed mold base 410 is fixedly connected to the base 100, and the rotating body 420 is rotatably mounted inside the fixed mold base 410. The movable core block 430 is fixedly mounted at the axial position of the fixed mold base 410. Multiple sets of movable modules are provided on the fixed mold base 410. The movable modules are distributed in a circular array with equal spacing around the movable core block 430. Multiple sets of rotary propulsion assemblies 470 corresponding one-to-one with the movable modules are also provided on the fixed mold base 410. The base 100 is also provided with a drive assembly 480 for rotating the rotating body 420.

[0046] The active module includes an insert block 440 and a stop block 450. The side of the stop block 450 away from the active core block 430 is fixedly connected to the rotary propulsion assembly 470, and the other side of the stop block 450 is fixedly connected to the insert block 440. When the stop block 450 is combined, the stop block 450, the insert block 440, the active core block 430, the fixed mold base 410 and the upper mold 300 constitute a closed mold cavity 460 for forming an impeller.

[0047] The automatic discharge mechanism 600 includes a discharge trough 610, a waste removal plate 620, a discharge assembly 630, and a support 640. The support 640 and the discharge trough 610 are respectively fixedly installed on the front and rear sides of the base 100. The waste removal plate 620 for removing the flow channel is fixedly installed on the upper end of the discharge trough 610, and the discharge assembly 630 is provided on the support 640.

[0048] In this invention, the injection molding press 200 drives the upper mold 300 to move vertically downward, and the drive component 480 drives the rotating body 420 to rotate, causing the rotary propulsion component 470 to run. The rotary propulsion component 470 drives the insert block 440 and the stop block 450 to advance towards the movable core block 430 along a rotational path until the stop block 450 is assembled. After the upper mold 300 and the lower mold 400 are closed, the raw material is injected into the closed mold cavity 460 through the upper mold 300. The cavity between the blades of the impeller is formed by the insert block 440. After the impeller is formed, the injection molding press 200 drives the upper mold 300 to reset, and the insert block 440 exits from the formed impeller along a rotational path, thereby making the demolding process smoother, avoiding damage to the workpiece, and thus improving the yield of finished parts.

[0049] Subsequently, the discharge assembly 630 moves the workpiece toward the discharge trough 610. During the transfer process, the flow channel on the finished part is blocked and removed by the waste removal plate 620, realizing the automatic removal of residual material on the finished plastic impeller, reducing manpower, and standardizing the flow channel removal operation.

[0050] Simultaneously, when the upper mold 300 and the lower mold 400 are fully closed, the synchronous temperature control mechanism 500 is triggered. The synchronous temperature control mechanism 500 sprays temperature-regulating water onto the surfaces of the upper mold 300 and the lower mold 400 to increase the molding speed of the plastic impeller. It then automatically stops after the upper mold 300 and the lower mold 400 are closed, exhibiting high synchronization.

[0051] Example 2

[0052] like Figure 1-7 As shown, in a preferred embodiment of the present invention, the rotary propulsion assembly 470 includes a slider 471, a slide rod 472, an outer slide groove 473, a through groove 474, and an inner slide groove 475. The fixed mold base 410 has an arc-shaped outer slide groove 473, which is slidably connected to the slider 471. The inner bottom of the outer slide groove 473 has a through groove 474, and the rotating body 420 has an inclined inner slide groove 475. The bottom of the slider 471 is fixedly mounted with a slide rod 472, which passes through the through groove 474 and is slidably connected to the inner slide groove 475. The slider 471 is fixedly connected to the stop block 450.

[0053] The drive assembly 480 includes a drive cylinder 481, a drive rod 482, a drive sleeve 483, and a movable groove 484. The drive cylinder 481 is fixedly installed on the top of the base 100, the drive rod 482 is fixedly installed on the side of the rotating body 420, and the fixed mold base 410 has a movable groove 484 that slides with the drive rod 482. The drive sleeve 483 is slidably connected to the drive rod 482, and the output end of the drive cylinder 481 is rotatably connected to the drive sleeve 483.

[0054] In this invention, the output end of the drive cylinder 481 extends to drive the drive sleeve 483 to move, thereby driving the drive rod 482 to slide in the movable groove 484, causing the rotating body 420 to rotate; the inner sliding groove 475 of the rotating body 420 drives the slider 471 to move through the sliding rod 472, thereby driving the insert block 440 and the stop block 450 to move towards the movable core block 430 in a rotating and pushing manner, until the stop block 450 abuts and combines with each other, forming a closed mold cavity 460 after the upper mold 300 and the lower mold 400 are completely closed; after injection molding, the upper mold 300 and the lower mold 400 separate, and the insert block 440 is reset in the same way, reducing the possibility of damage to the finished part.

[0055] The waste removal plate 620 has a U-shaped groove for assisting in the removal of flow channels at one end near the lower mold 400.

[0056] The discharge assembly 630 includes a lifting cylinder 631, a first-stroke cylinder 632, a second-stroke cylinder 633, and a gripper cylinder 634. The lifting cylinder 631 is fixedly installed on the lower side of the base 100, and its output end is fixedly connected to the movable core block 430. The second-stroke cylinder 633 is fixedly connected to the bracket 640, and its output end is fixedly connected to the first-stroke cylinder 632 through a connecting plate. The output end of the first-stroke cylinder 632 is fixedly installed with a gripper cylinder 634 for clamping the finished product.

[0057] In this invention, after the plastic impeller is formed, the lifting cylinder 631 lifts the finished part through the movable core block 430. The first stroke cylinder 632 drives the gripper cylinder 634 to move towards the workpiece, and the gripper cylinder 634 clamps and fixes the workpiece. Then, the first stroke cylinder 632 drives the workpiece to move towards the discharge trough 610. During the movement, the flow channel of the workpiece gets stuck in the U-shaped groove of the waste removal plate 620 and is blocked by the waste removal plate 620 and automatically removed. The finished part is placed in the discharge trough 610 and slides out. The lifting cylinder 631, the first stroke cylinder 632 and the second stroke cylinder 633 are reset and waiting for the next operation.

[0058] The synchronous temperature control mechanism 500 includes a pressure rod 510, an outer sliding sleeve 520, an inner piston 530, an outer through groove 540, and a spring return assembly. The pressure rod 510 is fixedly installed at the lower end of the upper mold 300, and the outer sliding sleeve 520 is fixedly installed at the upper end of the base 100. The lower end of the outer sliding sleeve 520 is connected to the water inlet pipe, and the pressure rod 510 is inserted into the outer sliding sleeve 520. The side wall of the inner piston 530 is slidably connected to the inner wall of the outer sliding sleeve 520. An outer through groove 540 is provided on the outer sliding sleeve 520, and an inner through groove 550 is provided on the inner piston 530. A spring return assembly is provided on the lower side of the inner piston 530. In the natural state, the outer through groove 540 and the inner through groove 550 are misaligned.

[0059] The fixed mold base 410 is provided with a temperature regulating channel for the flow of temperature-regulating water. The inlet of the temperature regulating channel is connected to the outer channel 540 through the water inlet pipe, and the outlet of the temperature regulating channel is connected to the water outlet pipe.

[0060] The spring reset assembly includes a spring 560 and a retaining ring 570. The retaining ring 570 is fixedly connected to the inner wall of the outer sliding sleeve 520 and located on the lower side of the inner piston 530. The two ends of the spring 560 are fixedly connected to the inner piston 530 and the retaining ring 570, respectively.

[0061] In this invention, during the mold closing process of the upper mold 300 and the lower mold 400, the pressure rod 510 is inserted into the outer sliding sleeve 520 to press down the inner piston 530. When the upper mold 300 and the lower mold 400 are completely closed, the inner through groove 550 of the inner piston 530 and the outer through groove 540 of the outer sliding sleeve 520 are aligned. The water in the outer sliding sleeve 520 flows into the water inlet pipe through the outer through groove 540 and the inner through groove 550, and is then input into the temperature regulating channel of the fixed mold base 410 through the water inlet pipe. After heat exchange is completed, the water is discharged through the water outlet pipe. When the upper mold 300 and the lower mold 400 are separated, the spring reset assembly drives the inner piston 530 to reset, and the outer through groove 540 and the inner through groove 550 are misaligned, thus stopping the injection of water.

[0062] Example 3

[0063] like Figure 1-7 As shown, in a preferred embodiment of the present invention, a method for using an automatic desizing plastic impeller high-pressure molding equipment is also provided, comprising the following steps:

[0064] Step 1: The injection molding press 200 drives the upper mold 300 to move vertically downward. The output end of the drive cylinder 481 extends and drives the drive sleeve 483 to move, thereby driving the drive rod 482 to slide in the movable groove 484, causing the rotating body 420 to rotate. The inner sliding groove 475 of the rotating body 420 drives the slider 471 to move through the sliding rod 472, thereby driving the insert block 440 and the stop block 450 to move towards the movable core block 430 in a rotating and pushing manner until the stop block 450 abuts and combines with each other. After the upper mold 300 and the lower mold 400 are completely closed, a closed mold cavity 460 is formed, and the raw material is injected into the closed mold cavity 460 through the upper mold 300.

[0065] Step 2: During the mold closing process of the upper mold 300 and the lower mold 400, the pressure rod 510 is inserted into the outer sliding sleeve 520 to press down the inner piston 530. When the upper mold 300 and the lower mold 400 are completely closed, the inner through groove 550 of the inner piston 530 and the outer through groove 540 of the outer sliding sleeve 520 are aligned. The water in the outer sliding sleeve 520 flows into the water inlet pipe through the outer through groove 540 and the inner through groove 550, and is then input into the temperature regulating channel of the fixed mold base 410 through the water inlet pipe. After completing the heat exchange to assist in the forming of the workpiece, it is discharged through the water outlet pipe. When the upper mold 300 and the lower mold 400 separate, the spring reset assembly drives the inner piston 530 to reset, and the outer through groove 540 and the inner through groove 550 are misaligned, thus stopping the injection of water.

[0066] Step 3: After the plastic impeller is injection molded, the upper mold 300 and the lower mold 400 separate, and the insert block 440 is also reset by rotation to achieve the demolding process;

[0067] Step 4: Lifting cylinder 631 lifts the finished part through movable core block 430. First stroke cylinder 632 drives gripper cylinder 634 to move towards the workpiece, and gripper cylinder 634 clamps and fixes the workpiece. Then, first stroke cylinder 632 drives the workpiece to move towards discharge trough 610. During the movement, the workpiece's flow channel gets stuck in the U-shaped groove of the waste removal plate 620 and is automatically removed by the waste removal plate 620. The finished part is placed in discharge trough 610 and slides out. Lifting cylinder 631, first stroke cylinder 632 and second stroke cylinder 633 are reset, waiting for the next operation.

[0068] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic plastic impeller high-pressure molding equipment for removing excess material, comprising a base (100) and an injection molding press (200), characterized in that: The upper mold (300) is fixedly installed at the output end of the injection molding press (200), and the lower mold (400) is fixedly installed on the base (100). The upper mold (300) and the lower mold (400) cooperate to form a plastic impeller. An automatic discharge mechanism (600) is also provided on the base (100), and a synchronous temperature control mechanism (500) is provided between the upper mold (300) and the lower mold (400). The lower mold (400) includes a fixed mold base (410), a rotating body (420), a movable core block (430), a movable module, a closed mold cavity (460), a rotary propulsion assembly (470), and a drive assembly (480). The fixed mold base (410) is fixedly connected to the base (100), and the rotating body (420) is rotatably mounted on the inner side of the fixed mold base (410). The movable core block (430) is fixedly mounted at the axial position of the fixed mold base (410). Multiple sets of movable modules are provided on the fixed mold base (410). The movable modules are distributed in a circular array with equal spacing around the movable core block (430). Multiple sets of rotary propulsion assemblies (470) corresponding one-to-one with the movable modules are also provided on the fixed mold base (410). The base (100) is also provided with a drive assembly (480) for rotating the rotating body (420). The active module includes an insert block (440) and a stop block (450). The side of the stop block (450) away from the active core block (430) is fixedly connected to the rotary propulsion assembly (470), and the other side of the stop block (450) is fixedly connected to the insert block (440). When the stop block (450) is combined, the stop block (450), the insert block (440), the active core block (430), the fixed mold base (410), and the upper mold (300) constitute a closed mold cavity (460) for forming the impeller. The automatic discharge mechanism (600) includes a discharge trough (610), a waste removal plate (620), a discharge assembly (630), and a bracket (640). The bracket (640) and the discharge trough (610) are respectively fixedly installed on the front and rear sides of the base (100). The waste removal plate (620) for removing the flow channel is fixedly installed on the upper end of the discharge trough (610), and the discharge assembly (630) is provided on the bracket (640). The rotary propulsion assembly (470) includes a slider (471), a slide rod (472), an outer slide groove (473), a through groove (474), and an inner slide groove (475). The fixed mold base (410) has an outer slide groove (473) which is slidably connected to the slider (471). The inner bottom of the outer slide groove (473) has a through groove (474). The rotating body (420) has an inclined inner slide groove (475). The bottom of the slider (471) is fixedly mounted with a slide rod (472), which passes through the through groove (474) and is slidably connected to the inner slide groove (475). The slider (471) is fixedly connected to the stop block (450). The outer groove (473) is set to be arc-shaped, and all the outer grooves (473) form a spiral structure; The drive assembly (480) includes a drive cylinder (481), a drive rod (482), a drive sleeve (483), and a movable groove (484). The drive cylinder (481) is fixedly installed on the top of the base (100), the drive rod (482) is fixedly installed on the side of the rotating body (420), and the fixed mold base (410) is provided with a movable groove (484) that slides with the drive rod (482). The drive sleeve (483) is slidably connected to the drive rod (482), and the output end of the drive cylinder (481) is rotatably connected to the drive sleeve (483). The waste removal plate (620) has a U-shaped slot for assisting in the removal of the flow channel at one end near the lower mold (400); The discharge assembly (630) includes a lifting cylinder (631), a first-stroke cylinder (632), a second-stroke cylinder (633), and a gripper cylinder (634). The lifting cylinder (631) is fixedly installed on the lower side of the base (100), and the output end of the lifting cylinder (631) is fixedly connected to the movable core block (430). The second-stroke cylinder (633) is fixedly connected to the bracket (640), and the output end of the second-stroke cylinder (633) is fixedly connected to the first-stroke cylinder (632) through a connecting plate. The output end of the first-stroke cylinder (632) is fixedly installed with a gripper cylinder (634) for clamping the finished product. The synchronous temperature control mechanism (500) includes a pressure rod (510), an outer sliding sleeve (520), an inner piston (530), and an outer through groove (540). The pressure rod (510) is fixedly installed at the lower end of the upper mold (300), and the outer sliding sleeve (520) is fixedly installed at the upper end of the base (100). The lower end of the outer sliding sleeve (520) is connected to the water inlet pipe, and the pressure rod (510) is inserted into the outer sliding sleeve (520). The side wall of the inner piston (530) is limited and slidably connected to the inner wall of the outer sliding sleeve (520). An outer through groove (540) is provided on the outer sliding sleeve (520), and an inner through groove (550) is provided on the inner piston (530).

2. The high-pressure molding equipment for automatically removing excess material from plastic impellers according to claim 1, characterized in that, A spring reset assembly is provided on the lower side of the inner piston (530); in the natural state, the outer through groove (540) and the inner through groove (550) are misaligned.

3. The high-pressure molding equipment for automatically removing excess material from plastic impellers according to claim 2, characterized in that, The spring reset assembly includes a spring (560) and a retaining ring (570). The retaining ring (570) is fixedly connected to the inner wall of the outer sliding sleeve (520) and located on the lower side of the inner piston (530). The two ends of the spring (560) are fixedly connected to the inner piston (530) and the retaining ring (570) respectively.

4. A method of using the automatic desizing plastic impeller high-pressure molding equipment as described in claim 3, characterized in that, Includes the following steps: Step 1: The injection press (200) drives the upper mold (300) to move vertically downward. The output end of the drive cylinder (481) extends and drives the drive sleeve (483) to move, thereby driving the drive rod (482) to slide in the movable groove (484), so that the rotating body (420) rotates. The inner sliding groove (475) of the rotating body (420) drives the slider (471) to move through the sliding rod (472), thereby driving the insert block (440) and the stop block (450) to move towards the movable core block (430) in a rotating and pushing manner until the stop block (450) abuts against each other and combines. After the upper mold (300) and the lower mold (400) are completely closed, a closed mold cavity (460) is formed, and the raw material is injected into the closed mold cavity (460) through the upper mold (300). Step 2: During the mold closing process of the upper mold (300) and the lower mold (400), the pressure rod (510) is inserted into the outer sliding sleeve (520) to press down the inner piston (530). When the upper mold (300) and the lower mold (400) are completely closed, the inner through groove (550) of the inner piston (530) and the outer through groove (540) of the outer sliding sleeve (520) are aligned. The water in the outer sliding sleeve (520) flows into the water inlet pipe through the outer through groove (540) and the inner through groove (550), and is input into the temperature regulating channel of the fixed mold base (410) through the water inlet pipe. After completing the heat exchange to assist in the forming of the workpiece, it is discharged through the water outlet pipe. When the upper mold (300) and the lower mold (400) are separated, the spring reset assembly drives the inner piston (530) to reset, and the outer through groove (540) and the inner through groove (550) are misaligned to stop the injection of water. Step 3: After the plastic impeller is injection molded, the upper mold (300) and the lower mold (400) are separated, and the insert block (440) is also reset by rotation to achieve the demolding process; Step 4: The lifting cylinder (631) lifts the finished part through the movable core block (430). The first stroke cylinder (632) drives the gripper cylinder (634) to move towards the workpiece, and the gripper cylinder (634) clamps and fixes the workpiece. Then the first stroke cylinder (632) drives the workpiece to move towards the discharge trough (610). During the movement, the flow channel of the workpiece gets stuck in the U-shaped groove of the waste removal plate (620) and is blocked by the waste removal plate (620) and automatically removed. The finished part is placed in the discharge trough (610) and slides out. The lifting cylinder (631), the first stroke cylinder (632) and the second stroke cylinder (633) are reset and wait for the next operation.

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