Elliptical engine pump closed type production push mold
By using a closed-loop production push mold fixing and cooling device, the problem of elliptical engine pump mold offset during closure was solved, thereby improving mold stability and molding accuracy, and increasing production efficiency and material utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING HUAYI XINGSHENG MACHINERY CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional elliptical engine pump molds are prone to shifting or misalignment when closed, resulting in decreased product dimensional accuracy, reduced stability, lower molding efficiency and yield, and low material utilization.
The closed-loop production push mold is adopted. Through the cooperation of the fixing device and the cooling device, the mold is stably closed, the molding pressure is evenly distributed, and the deviation is prevented. The cooling device quickly and evenly reduces the mold temperature and reduces thermal deformation.
It improves the stability and positioning accuracy of the mold, reduces the risk of product deformation, increases production efficiency and material utilization, extends the mold life, and ensures product dimensional consistency and strength.
Smart Images

Figure CN224372683U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of production mold technology, specifically relating to an elliptical-shaped closed-loop production push mold for an engine pump. Background Technology
[0002] Traditional engine pump bodies mostly adopt a cylindrical design, but an elliptical structure can optimize fluid dynamics performance, reduce eddy current losses, and improve sealing and space utilization. The precision forming of the elliptical shape places higher demands on the mold, requiring solutions to the machining accuracy of irregular curved surfaces, material flow control, and demolding problems in closed production. Existing elliptical engine pump wheels are produced using open molds, which require separate edge trimming after production. This results in a long production process, long product turnaround time, low material utilization of open mold products, and a large number of personnel required.
[0003] However, the current mold has the following problems: uneven force on the mold, easy to deviate or misalign when closed, affecting the product's dimensional accuracy, reducing stability, increasing the risk of deformation, and reducing molding efficiency and yield. Therefore, we propose an elliptical engine pump closed-loop production push mold. Utility Model Content
[0004] The purpose of this invention is to provide an elliptical-shaped closed-loop production push mold for engine pumps, which can solve the problems in related technologies such as uneven mold force, easy displacement or misalignment during closure, affecting product dimensional accuracy, reducing stability, increasing deformation risk, and reducing molding efficiency and yield.
[0005] The specific technical solution adopted by this utility model is as follows:
[0006] An elliptical engine pump closed-loop production push mold includes multiple support columns. The tops of the multiple support columns are fixedly connected to the same worktable, and the outer walls of the multiple support columns are fixedly connected to the same base plate. The top of the worktable is fixedly connected to a support seat, and the top of the worktable is fixedly connected to a pad. The side of the pad is provided with a fixing device for fixing mold guide locks. The fixing device includes two fixing plates, the sides of which are fixedly connected to the sides of the pad. One side of one fixing plate is fixedly connected to a drive motor. The output shaft of the drive motor is fixedly connected to a bidirectional threaded rod. Two threaded sleeves are threadedly connected to the threaded surfaces of the bidirectional threaded rod with opposite thread directions. The tops of the two threaded sleeves are fixedly connected to an arc-shaped fixing plate.
[0007] A push rod is fixedly connected to the top of the base plate, and a push plate is fixedly connected to the output end of the push rod. A pressure rod is fixedly connected to the inner wall of the support base, and a pressure plate is fixedly connected to the output end of the pressure rod. An upper mold is fixedly connected to the bottom of the pressure plate, and a lower mold is provided on the top of the pad.
[0008] The fixing device also includes two fixing plates that are fixedly connected to the side of the pad, and a limiting rod is fixedly connected between the two fixing plates. Two limiting sleeves are slidably connected to the circumferential surface of the limiting rod.
[0009] The bottoms of the two arc-shaped fixing plates are in contact with the top of the pad, and the inner walls of the two arc-shaped fixing plates are in contact with the circumferential surface of the lower mold.
[0010] A cooling device for a cooling mold guide lock is provided on the side of one of the threaded sleeves. The cooling device includes an L-shaped connecting rod, the side of which is fixedly connected to the side of one of the threaded sleeves. An L-shaped connecting rod is fixedly connected to the side of one of the limiting sleeves. A support frame is fixedly connected to the side of the L-shaped connecting rod. A nozzle is fixedly connected to the inner wall of the support frame. A liquid storage tank is fixedly connected to the top of the worktable. A pressing element is fixedly connected to the side of the liquid storage tank. An infusion pipe is fixedly connected to the side of the nozzle. An L-shaped moving frame is fixedly connected to the side of the L-shaped connecting rod.
[0011] The side of the support frame away from the first L-shaped connecting rod is fixedly connected to the side of the second L-shaped connecting rod, and the end of the infusion tube away from the nozzle is fixedly connected to the side of the storage tank.
[0012] The pressing component is used to control the coolant in the reservoir to be sprayed out through the nozzle, and the circular surface of the pressing component is located on the movement trajectory of the circular surface of the L-shaped moving frame.
[0013] The technical effects achieved by this utility model are as follows:
[0014] This utility model, through the setting of a fixing device, enables the cooperation of fixing plate one, drive motor, bidirectional threaded rod, threaded sleeve, arc-shaped fixing plate, fixing plate two, limiting rod, and limiting sleeve. The movement of the two arc-shaped fixing plates drives the two limiting sleeves to move on the limiting rod to prevent the arc-shaped fixing plates from rotating. The movement of the two arc-shaped fixing plates clamps and fixes the lower mold, enhances the mold closing stability, prevents the elliptical irregular structure from shifting, evenly distributes the molding pressure, reduces the risk of deformation, improves positioning accuracy, ensures product size consistency, facilitates quick disassembly and maintenance, and improves production efficiency.
[0015] This invention, through the setting of a cooling device, enables the cooperation of L-shaped connecting rod one, L-shaped connecting rod two, support frame, nozzle, liquid storage tank, pressing component, liquid delivery pipe, and L-shaped moving frame. The pressing component is used to control the coolant in the liquid storage tank to be sprayed out from the nozzle through the liquid delivery pipe. The movement of the support frame drives the movement of the nozzle, which can quickly and evenly reduce the mold temperature, reduce thermal deformation, improve the dimensional accuracy of the elliptical pump body, shorten the molding cycle, and improve production efficiency. At the same time, it avoids local overheating, extends the mold life, improves the material crystallization performance, and enhances the product strength. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the entire utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the push rod of this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the fixing device of this utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the cooling device of this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the nozzle of this utility model.
[0021] The attached diagram lists the components represented by each number as follows:
[0022] 1. Support column; 2. Workbench; 3. Base plate; 4. Support seat; 5. Pad plate; 6. Fixing device; 61. Fixing plate one; 62. Drive motor; 63. Bidirectional threaded rod; 64. Threaded sleeve; 65. Arc-shaped fixing plate; 66. Fixing plate two; 67. Limiting rod; 68. Limiting sleeve; 7. Cooling device; 71. L-shaped connecting rod one; 72. L-shaped connecting rod two; 73. Support frame; 74. Nozzle; 75. Liquid storage tank; 76. Pressing component; 77. Infusion tube; 78. L-shaped moving frame; 8. Push rod; 9. Push plate; 10. Pressing rod; 11. Pressing plate; 12. Upper mold; 13. Lower mold. Detailed Implementation
[0023] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0024] like Figures 1-3As shown, an elliptical engine pump closed-loop production push mold includes multiple support columns 1. The tops of the support columns 1 are fixedly connected to the same worktable 2. The outer walls of the support columns 1 are fixedly connected to the same base plate 3. A support base 4 is fixedly connected to the top of the worktable 2. A pad 5 is fixedly connected to the top of the worktable 2. A fixing device 6 for fixing mold guide locks is provided on the side of the pad 5. The fixing device 6 includes two fixing plates 61, the sides of which are fixedly connected to the sides of the pad 5. A drive motor 62 is fixedly connected. The output shaft of the drive motor 62 is fixedly connected to a bidirectional threaded rod 63. Two threaded sleeves 64 are threaded onto the threaded surfaces of the bidirectional threaded rod 63 with opposite thread directions. An arc-shaped fixing plate 65 is fixedly connected to the top of each threaded sleeve 64. A push rod 8 is fixedly connected to the top of the base plate 3. A push plate 9 is fixedly connected to the output end of the push rod 8. A pressing rod 10 is fixedly connected to the inner wall of the support base 4. A pressing plate 11 is fixedly connected to the output end of the pressing rod 10. An upper mold 12 is fixedly connected to the bottom of the pressing plate 11. A lower mold 13 is provided on the top of the pad 5. The fixing device 6 also includes two fixing plates 66 fixedly connected to the side of the pad 5. A limiting rod 67 is fixedly connected between the two fixing plates 66. Two limiting sleeves 68 are slidably connected to the circumferential surface of the limiting rod 67. The bottom of the two arc-shaped fixing plates 65 contacts the top of the pad 5, and the inner wall of the two arc-shaped fixing plates 65 contacts the circumferential surface of the lower mold 13. The downward movement of the output end of the lower pressure rod 10 drives the lower pressure plate 11 to move downward. The downward movement of the lower pressure plate 11 drives the upper mold 12 to move downward. Locking buckles are provided on the upper and lower molds 13 to ensure that the upper mold 12 can be fully inserted into the lower mold 13 and will not move during the production process. When the mold is closed, the product cavity is completely closed laterally, and no flash will be generated in the product, which improves the material utilization rate of the product and eliminates the original open edge cutting process, saving manpower and improving material utilization. It can also be used for engine gears, gear hubs, engagement gears with irregular outer circles, as well as engine gear hubs and gears with requirements for the direction of the oil groove. The push rod 8 moves upward at the output end, which drives the push plate 9 to move upward and push the workpiece out.
[0025] According to the above structure, the drive motor 62 is started, and the rotation of the output shaft of the drive motor 62 drives the rotation of the bidirectional threaded rod 63. The rotation of the bidirectional threaded rod 63 drives the movement of the two threaded sleeves 64. The movement of the two threaded sleeves 64 drives the movement of the two arc-shaped fixing plates 65. The movement of the two arc-shaped fixing plates 65 drives the two limiting sleeves 68 to move on the limiting rod 67 to prevent the arc-shaped fixing plates 65 from rotating. The movement of the two arc-shaped fixing plates 65 clamps and fixes the lower mold 13, enhances the mold closing stability, prevents the elliptical irregular structure from shifting, evenly distributes the molding pressure, reduces the risk of deformation, improves positioning accuracy, ensures product size consistency, facilitates quick disassembly and maintenance, and improves production efficiency.
[0026] like Figures 4-5 As shown, a cooling device 7 with a cooling mold guide lock is provided on the side of one of the threaded sleeves 64. The cooling device 7 includes an L-shaped connecting rod 71, the side of which is fixedly connected to the side of one of the threaded sleeves 64. An L-shaped connecting rod 72 is fixedly connected to the side of one of the limiting sleeves 68. A support frame 73 is fixedly connected to the side of the L-shaped connecting rod 71. A nozzle 74 is fixedly connected to the inner wall of the support frame 73. A liquid storage tank 75 is fixedly connected to the top of the workbench 2. The side of the liquid storage tank 75 is fixedly connected to the top of the workbench 2. A pressing element 76 is fixedly connected to the nozzle 74. An infusion tube 77 is fixedly connected to the side of the nozzle 74. An L-shaped moving frame 78 is fixedly connected to the side of the L-shaped connecting rod 71. The side of the support frame 73 away from the L-shaped connecting rod 71 is fixedly connected to the side of the L-shaped connecting rod 72. The end of the infusion tube 77 away from the nozzle 74 is fixedly connected to the side of the storage tank 75. The pressing element 76 is used to control the coolant in the storage tank 75 to be sprayed out through the nozzle 74. The circular surface of the pressing element 76 is located on the movement trajectory of the circular surface of the L-shaped moving frame 78.
[0027] According to the above structure, the movement of the threaded sleeve 64 drives the movement of the L-shaped connecting rod 71, which in turn drives the movement of the L-shaped moving frame 78 to push the pressing component 76. The pressing component 76 is used to control the coolant in the reservoir 75 to be sprayed out from the nozzle 74 through the delivery pipe 77. The movement of the limiting sleeve 68 drives the movement of the L-shaped connecting rod 72, and the movement of the L-shaped connecting rod 71 and the L-shaped connecting rod 72 drives the movement of the support frame 73. The movement of the support frame 73 drives the movement of the nozzle 74. This can quickly and evenly reduce the mold temperature, reduce thermal deformation, improve the dimensional accuracy of the elliptical pump body, shorten the molding cycle, and improve production efficiency. At the same time, it avoids local overheating, extends the mold life, improves the material crystallization performance, and enhances the product strength.
[0028] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. An elliptical-shaped closed-loop production push mold for an engine pump, comprising multiple support columns (1), characterized in that: The top of the multiple support columns (1) is fixedly connected to the same workbench (2), the outer wall of the multiple support columns (1) is fixedly connected to the same base plate (3), the top of the workbench (2) is fixedly connected to the support seat (4), the top of the workbench (2) is fixedly connected to the pad plate (5), the side of the pad plate (5) is provided with a fixing device (6) for fixing mold guide lock, the fixing device (6) includes two fixing plates (61), the sides of the two fixing plates (61) are fixedly connected to the side of the pad plate (5), one of the fixing plates (61) is fixedly connected to the side of a drive motor (62), the output shaft of the drive motor (62) is fixedly connected to a bidirectional threaded rod (63), two threaded sleeves (64) are threadedly connected to the threaded surfaces with opposite thread directions on the bidirectional threaded rod (63), and the top of each of the two threaded sleeves (64) is fixedly connected to an arc-shaped fixing plate (65).
2. The elliptical-shaped closed-loop production push mold for an engine pump according to claim 1, characterized in that: A push rod (8) is fixedly connected to the top of the base plate (3), and a push plate (9) is fixedly connected to the output end of the push rod (8). A pressure rod (10) is fixedly connected to the inner wall of the support base (4), and a pressure plate (11) is fixedly connected to the output end of the pressure rod (10). An upper mold (12) is fixedly connected to the bottom of the pressure plate (11), and a lower mold (13) is provided on the top of the pad plate (5).
3. The elliptical-shaped closed-loop production push mold for an engine pump according to claim 1, characterized in that: The fixing device (6) also includes two fixing plates (66) fixedly connected to the side of the pad (5), and a limiting rod (67) fixedly connected between the two fixing plates (66). Two limiting sleeves (68) are slidably connected to the circumferential surface of the limiting rod (67).
4. The elliptical-shaped closed-loop production push mold for an engine pump according to claim 1, characterized in that: The bottoms of the two arc-shaped fixing plates (65) are in contact with the top of the pad (5), and the inner walls of the two arc-shaped fixing plates (65) are in contact with the circumferential surface of the lower mold (13).
5. The elliptical-shaped closed-loop production push mold for an engine pump according to claim 3, characterized in that: A cooling device (7) for cooling mold guide lock is provided on the side of one of the threaded sleeves (64). The cooling device (7) includes an L-shaped connecting rod (71). The side of the L-shaped connecting rod (71) is fixedly connected to the side of one of the threaded sleeves (64). An L-shaped connecting rod (72) is fixedly connected to the side of one of the limiting sleeves (68). A support frame (73) is fixedly connected to the side of the L-shaped connecting rod (71). A nozzle (74) is fixedly connected to the inner wall of the support frame (73). A liquid storage tank (75) is fixedly connected to the top of the workbench (2). A pressing element (76) is fixedly connected to the side of the liquid storage tank (75). An infusion pipe (77) is fixedly connected to the side of the nozzle (74). An L-shaped moving frame (78) is fixedly connected to the side of the L-shaped connecting rod (71).
6. The elliptical-shaped closed-loop production push mold for an engine pump according to claim 5, characterized in that: The support frame (73) is fixedly connected to the side of the L-shaped connecting rod (72) away from the side of the L-shaped connecting rod (71), and the end of the infusion tube (77) away from the nozzle (74) is fixedly connected to the side of the storage tank (75).
7. The elliptical-shaped closed-loop production push mold for an engine pump according to claim 5, characterized in that: The pressing element (76) is used to control the coolant in the reservoir (75) to be sprayed out through the nozzle (74), and the circular surface of the pressing element (76) is located on the movement trajectory of the circular surface of the L-shaped moving frame (78).