Engine front cover injection mold convenient to demold

Abstract

The utility model relates to the technical field of injection molds, in particular to an engine front cover injection mold convenient for demolding, which comprises a workbench, a support frame fixedly connected to the top of the workbench, polishing parts fixedly connected to the inner side walls of the support frame, a pressing part fixedly connected to the inner side wall of the top of the support frame, and a turntable rotatably connected to the top of the workbench. The power assembly works, the rotating shaft is driven by the power assembly to rotate, the meshing assembly is driven by the rotating shaft to work, and the lifting assembly is driven to work in the working process of the meshing assembly, so that the sliding seat and the die-cast engine hood are taken out from the interior of the annular seat through the lifting assembly, and the purpose of quick demolding is achieved; and the rotating shaft and the rotating disc are clamped by adjusting the adjusting assembly, so that the rotating shaft drives the whole annular seat to rotate in the rotating process, the periphery of the engine hood can be ground through the grinding piece, and the ground position is prevented from occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for an engine front cover which is easy to demould. Background Art

[0002] The engine hood refers to the engine cover, which can spoil the air flow to a certain extent and beautify the engine compartment. Using engines of different materials can isolate the noise generated by the engine during operation, which improves the comfort of the car to a certain extent. At the beginning of its invention, the main purpose of the engine hood was to keep the engine compartment clean. Injection molds are needed for pressing and molding during processing, but most molds are not convenient for demolding, so an injection mold that is easy to demold is needed.

[0003] For example, the patent with publication number CN214442380U discloses an engine front cover injection mold with a demolding structure, including a base and a fixed rod, support rods are arranged on the left and right sides of the lower end of the base, a connecting rod is installed in the middle of the support rod, and a first motor is installed on the upper end of the connecting rod, a threaded rod is connected to the upper end of the first motor, a bearing seat is arranged at the upper end of the threaded rod, and a sliding seat is arranged at the upper end of the bearing seat, a fixed bottom plate is installed in the middle of the upper end of the base, and a lower mold seat is arranged at the upper end of the fixed bottom plate, and support frames are installed on the left and right sides of the upper end of the base.

[0004] Through the above arrangement, the engine front cover injection mold with a demoulding structure in the prior art, compared with the existing ordinary injection mold, can make the bearing seat push the slide seat to move upward through the arrangement of the first motor, the threaded rod, the bearing seat, the slide seat and the lower mold seat, so that the molded workpiece can be pushed out, which can solve the disadvantage of manually extruding the workpiece and improve the production efficiency. However, the engine front cover injection mold with a demoulding structure in the prior art solution has the following defects during operation:

[0005] When the above-mentioned device demoulds the engine hood, the motor drives the threaded rod to rotate, and then drives the slide seat to screw upward through the bearing seat, thereby extruding the extruded workpiece. However, the bearing seat can only start the motor when the threaded rod is at the lower end to push out the engine hood to complete the demoulding. At this time, the threaded rod passing through the bearing seat will hinder the extrusion of the engine hood, making the device unable to perform injection molding. Moreover, when polishing the engine hood, the device only polishes the two ends, which leads to the problem that some positions cannot be polished. Utility Model Content

[0006] The utility model aims to provide an engine front cover injection mold which is easy to demould, and is mainly used to solve the technical problems of the prior art that fast demoulding cannot be achieved and polishing is not comprehensive.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] An engine front cover injection mold which is easy to demould comprises a workbench, the top of the workbench is fixedly connected to a support frame, the inner side walls of the support frame are fixedly connected to polishing pieces, the top inner side walls of the support frame are fixedly connected to a pressing piece, the top of the workbench is rotatably connected to a turntable, the top of the turntable is fixedly connected to an annular seat, the inner side wall of the annular seat is slidably connected to a sliding seat, the inner side wall of the annular seat is rotatably connected to a lifting assembly, the top of the workbench at the center of the turntable is provided with a mounting hole, the inner side wall of the mounting hole is rotatably connected to a rotating shaft, the top of the rotating shaft is fixedly connected to an engaging assembly, the bottom of the rotating shaft is fixedly connected to a power assembly, and the inner side wall of the turntable is provided with an adjusting assembly.

[0009] The working principle and beneficial effects of the utility model:

[0010] 1. Working principle: The engine front hood injection mold structure that is easy to demold in the utility model is similar to the existing engine front hood injection mold structure that is easy to demold. For example, the patent with publication number CN214442380U discloses an engine front hood injection mold with a structure that is easy to demold. The main improvement of the utility model is that when the device is in use, the workpiece to be processed is first placed on the top of the annular seat, and the workpiece to be processed is pressed into the inside of the slide seat by a pressing piece to die-cast the workpiece, and the pressing is completed. The pressure of the pressing piece is released, and then the power component works, and the power component is used to drive the rotating shaft to rotate. The engaging component is driven to work by the rotating shaft, and the lifting component is driven to work during the working process of the engaging component, so that the slide seat and the die-cast engine hood are taken out from the inside of the annular seat through the lifting component to complete the demolding work, and the rotating shaft and the turntable are clamped by adjusting the adjusting component, so that the annular seat is driven to rotate as a whole during the rotation of the rotating shaft, and then the engine hood can be polished around by the polishing piece.

[0011] 2. Beneficial effects:

[0012] The prior art solves the technical problem of automatic demoulding by setting up the automatic demoulding. However, the prior art has the technical problems of being unable to achieve quick demoulding and incomplete polishing. The present solution works through a power component, which drives the rotating shaft to rotate. The rotating shaft drives the engaging component to work, and the engaging component drives the lifting component to work during the operation. The sliding seat and the die-cast engine hood are removed from the inside of the annular seat through the lifting component to achieve the purpose of quick demoulding. The rotating shaft and the turntable are clamped by adjusting the adjusting component, so that the annular seat is driven to rotate as a whole during the rotation of the rotating shaft. Then, the engine hood can be polished around by the polishing piece to prevent the occurrence of positions that cannot be polished.

[0013] Preferably: the lifting assembly includes a two-way screw rod rotatably connected to the inner side wall of the annular seat, the outer side wall of the two-way screw rod is symmetrically threadedly connected with a sliding block, the top of the sliding block is fixedly connected to the second mounting seat, the inner side wall of the second mounting seat is rotatably connected to a connecting rod, and the two connecting rods are relatively forked and rotated, the upper end outer walls of the two connecting rods are rotatably connected to the first mounting seat, the top of the first mounting seat is fixedly connected to the bottom of the sliding seat, when demolding is required, by rotating the two-way screw rod, when the two sliders approach each other during the rotation of the two-way screw rod, the two second mounting seats are respectively driven to approach each other during the process of the two sliders approaching each other, then the two connecting rods and the second mounting seat rotate, thereby increasing the inclination angle of the two connecting rods, and then the slide is pushed by the first mounting seat, so that the slide slides upward on the inner side wall of the annular seat, thereby achieving the purpose of quick demolding.

[0014] Preferably: the meshing assembly includes an active bevel gear fixedly connected to the top of the rotating shaft, and the outer wall of the bidirectional screw rod located at the active bevel gear is fixedly connected to a driven bevel gear, and the active bevel gear and the driven bevel gear are meshed with each other. When the bidirectional screw rod needs to be rotated, the rotating shaft is rotated, and the driven bevel gear is driven to rotate through the active bevel gear, and then the bidirectional screw rod is driven to rotate through the driven bevel gear, thereby achieving the purpose of convenience.

[0015] Preferably, the power assembly includes a motor fixedly connected to the bottom of the workbench, and the output end of the motor is fixedly connected to the top of the rotating shaft. When the rotating shaft needs to be rotated, the purpose of convenience is achieved by starting the motor.

[0016] Preferably: the adjustment component includes a circular groove formed on the inner wall of the turntable, a first electromagnet is fixedly connected to the end of the circular groove, a fixed block is fixedly connected to the inner wall of the circular groove, a through hole is formed on the side wall of the fixed block, a moving rod is slidably connected to the inner wall of the through hole, the end of the moving rod close to the first electromagnet is fixedly connected to the second electromagnet, a socket is formed on the outer wall of the rotating shaft where the moving rod is located, and the moving rod is adapted to the socket, when the die-cast engine hood is moved out of the interior of the annular seat, the first and second electromagnets are closed, and the moving rod is inserted into the interior of the socket to realize the clamping connection between the rotating shaft and the turntable, at this time, the rotation of the rotating shaft will drive the turntable and the annular seat to rotate, and then the engine hood can be quickly and comprehensively polished in conjunction with the polishing piece.

[0017] Preferably: the adjustment component also includes a spring sleeved on the outer wall of the moving rod, one end of the spring is connected to the fixed block but not fixedly, and the other end of the spring is fixedly connected to the side wall of the second electromagnet. When the first electromagnet and the second electromagnet are closed, the moving rod moves toward the rotating shaft along the inner wall of the through hole under the action of the compression spring, so that the end of the moving rod contacts the outer wall of the rotating shaft. As the motor works, the end of the moving rod slides along the outer wall of the rotating shaft. When the moving rod coincides with the socket, the moving rod is snapped into the inside of the socket under the action of the compression spring, thereby achieving the purpose of quickly snapping the rotating shaft and the turntable.

[0018] Preferably, the length of the moving rod is much greater than the distance between the circular groove and the insertion hole, so that the moving rod cannot be connected with the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the annular seat of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the bidirectional screw rod, connecting rod and sliding seat of the utility model;

[0022] Figure 4 It is a schematic diagram of the internal structure of the circular groove of the utility model.

[0023] The figure marks in the drawings of the specification include: 1. pressing part; 2. grinding part; 3. support frame; 4. workbench; 5. motor; 6. turntable; 7. annular seat; 8. slide seat; 9. driven bevel gear; 10. driving bevel gear; 11. rotating shaft; 12. mounting hole; 13. first mounting seat; 14. second mounting seat; 15. slider; 16. connecting rod; 17. bidirectional screw rod; 18. first electromagnet; 19. circular groove; 20. second electromagnet; 21. spring; 22. fixing block; 23. through hole; 24. moving rod; 25. socket. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-4As shown, it includes a workbench 4, the top of the workbench 4 is fixedly connected to a support frame 3, the inner side walls of the support frame 3 are fixedly connected to a grinding piece 2, the top inner side wall of the support frame 3 is fixedly connected to a pressing piece 1, the top of the workbench 4 is rotatably connected to a turntable 6, the top of the turntable 6 is fixedly connected to an annular seat 7, the inner side wall of the annular seat 7 is slidably connected to a sliding seat 8, the inner side wall of the annular seat 7 is rotatably connected to a lifting assembly, the lifting assembly includes a bidirectional screw rod 17 rotatably connected to the inner side wall of the annular seat 7, the outer side wall of the bidirectional screw rod 17 is symmetrically threaded with a slider 15, the top of the slider 15 is fixedly connected to a second mounting seat 14, the inner side walls of the second mounting seat 14 are rotatably connected to connecting rods 16, and the two connecting rods 16 are relatively forked and rotated, and the two connecting rods 16 rotate relatively forked. The outer wall of the upper end of the rod 16 is rotatably connected to the first mounting seat 13, and the top of the first mounting seat 13 is fixedly connected to the bottom of the slide seat 8. When the two-way screw rod 17 rotates, the two sliders 15 approach each other, and in the process of the two sliders 15 approaching each other, the two second mounting seats 14 are respectively driven to approach each other, so that the two connecting rods 16 and the second mounting seats 14 rotate, which makes the inclination angle of the two connecting rods 16 larger, and then the slide seat 8 is pushed by the first mounting seat 13, so that the slide seat 8 slides upward on the inner wall of the annular seat 7, so as to achieve the purpose of rapid demoulding. The top of the workbench 4 located at the center of the turntable 6 is penetrated with a mounting hole 12, and the inner wall of the mounting hole 12 is rotatably connected with a rotating shaft 11, and the top of the rotating shaft 11 is fixed A meshing assembly is connected, and the meshing assembly includes an active bevel gear 10 fixedly connected to the top of the rotating shaft 11, and a driven bevel gear 9 is fixedly connected to the outer wall of the two-way screw rod 17 located at the active bevel gear 10, and the active bevel gear 10 and the driven bevel gear 9 are meshed with each other. When the rotating shaft 11 rotates, the driven bevel gear 9 is driven to rotate by the active bevel gear 10, and then the two-way screw rod 17 is driven to rotate by the driven bevel gear 9, so as to achieve the purpose of convenience. A power assembly is fixedly connected to the bottom of the rotating shaft 11, and the power assembly includes a motor 5 fixedly connected to the bottom of the workbench 4, and the output end of the motor 5 is fixedly connected to the top of the rotating shaft 11. The motor 5 is started, and the rotating shaft 11 is driven to rotate by the motor 5, and the inner wall of the turntable 6 is opened. An adjustment component is provided, which includes a circular groove 19 provided on the inner wall of the rotating disk 6, a first electromagnet 18 is fixedly connected to the end of the circular groove 19, a fixed block 22 is fixedly connected to the inner wall of the circular groove 19, a through hole 23 is provided on the side wall of the fixed block 22, a moving rod 24 is slidably connected to the inner wall of the through hole 23, and the end of the moving rod 24 close to the first electromagnet 18 is fixedly connected to the second electromagnet 20, a socket 25 is provided on the outer wall of the rotating shaft 11 located at the moving rod 24, and the moving rod 24 is adapted to the socket 25, and the adjustment component also includes a spring 21 sleeved on the outer wall of the moving rod 24, one end of the spring 21 is connected to the fixed block 22 but not fixedly, and the other end of the spring 21 is fixedly connected to the side wall of the second electromagnet 20,When the die-cast engine hood is moved out of the annular seat 7, the first electromagnet 18 and the second electromagnet 20 are turned off, and the moving rod 24 moves along the inner wall of the through hole 23 toward the rotating shaft 11 under the action of the compression spring 21, so that the end of the moving rod 24 conflicts with the outer wall of the rotating shaft 11. As the motor 5 works, the end of the moving rod 24 slides along the outer wall of the rotating shaft 11. When the moving rod 24 coincides with the socket 25, the moving rod 24 is clamped into the socket 25 under the action of the compression spring 21. At this time, the rotation of the rotating shaft 11 will drive the turntable 6 and the annular seat 7 to rotate, and then cooperate with the grinding piece 2 to quickly perform comprehensive grinding work on the engine hood.

[0026] When the device is in use, the workpiece to be processed is first placed on the top of the annular seat 7, and the workpiece to be processed is pressed into the interior of the slide seat 8 by the pressing piece 1 to die-cast the workpiece. After the pressing is completed, the pressure of the pressing piece 1 is released, and the motor 5 is started. The rotating shaft 11 is driven to rotate by the motor 5. When the rotating shaft 11 rotates, the driven bevel gear 9 is driven to rotate by the active bevel gear 10, and then the bidirectional screw rod 17 is driven to rotate by the driven bevel gear 9. When the bidirectional screw rod 17 rotates, the two sliders 15 approach each other. In the process of the two sliders 15 approaching each other, the two second mounting seats 14 are respectively driven to approach each other, so that the two connecting rods 16 rotate with the second mounting seat 14, so that the inclination angle of the two connecting rods 16 becomes larger, and then the first mounting seat 13 is pushed The slide seat 8 makes the slide seat 8 slide upward on the inner wall of the annular seat 7, so as to achieve the purpose of rapid demoulding. When the die-cast engine hood is moved out of the interior of the annular seat 7, the first electromagnet 18 and the second electromagnet 20 are closed, and the moving rod 24 is moved along the inner wall of the through hole 23 toward the rotating shaft 11 under the action of the compression spring 21, so that the end of the moving rod 24 is in conflict with the outer wall of the rotating shaft 11. As the motor 5 works, the end of the moving rod 24 slides along the outer wall of the rotating shaft 11. When the moving rod 24 coincides with the socket 25, the moving rod 24 is clamped into the inside of the socket 25 under the action of the compression spring 21. At this time, the rotation of the rotating shaft 11 will drive the turntable 6 and the annular seat 7 to rotate, and then cooperate with the grinding piece 2 to quickly perform comprehensive grinding on the engine hood.

[0027] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An injection mold for an engine front cover that is easy to demould, comprising a workbench (4), the top of the workbench (4) is fixedly connected to a support frame (3), the inner side walls of the support frame (3) are fixedly connected to a polishing piece (2), and the top inner side wall of the support frame (3) is fixedly connected to a pressing piece (1), characterized in that: The top of the workbench (4) is rotatably connected to a turntable (6), the top of the turntable (6) is fixedly connected to an annular seat (7), the inner side wall of the annular seat (7) is slidably connected to a sliding seat (8), the inner side wall of the annular seat (7) is rotatably connected to a lifting assembly, a mounting hole (12) is provided through the top of the workbench (4) at the center of the turntable (6), the inner side wall of the mounting hole (12) is rotatably connected to a rotating shaft (11), the top of the rotating shaft (11) is fixedly connected to a meshing assembly, the bottom of the rotating shaft (11) is fixedly connected to a power assembly, and the inner side wall of the turntable (6) is provided with an adjusting assembly.

2. The engine front cover injection mold that is easy to demould according to claim 1, characterized in that: The lifting assembly comprises a bidirectional screw rod (17) rotatably connected to the inner wall of the annular seat (7); the outer wall of the bidirectional screw rod (17) is symmetrically threadedly connected to a slider (15); the top of the slider (15) is fixedly connected to a second mounting seat (14); the inner wall of the second mounting seat (14) is rotatably connected to a connecting rod (16), and the two connecting rods (16) are relatively cross-rotated; the upper outer walls of the two connecting rods (16) are rotatably connected to a first mounting seat (13); the top of the first mounting seat (13) is fixedly connected to the bottom of the sliding seat (8).

3. The engine front cover injection mold that is easy to demould according to claim 1, characterized in that: The meshing assembly comprises a driving bevel gear (10) fixedly connected to the top of a rotating shaft (11); a driven bevel gear (9) is fixedly connected to the outer side wall of a bidirectional screw rod (17) located at the driving bevel gear (10); and the driving bevel gear (10) and the driven bevel gear (9) are meshed with each other.

4. The engine front cover injection mold that is easy to demould according to claim 1, characterized in that: The power assembly comprises a motor (5) fixedly connected to the bottom of the workbench (4), and the output end of the motor (5) is fixedly connected to the top of the rotating shaft (11).

5. The engine front cover injection mold that is easy to demould according to claim 1, characterized in that: The adjustment component comprises a circular groove (19) formed on the inner wall of the rotating disk (6); a first electromagnet (18) is fixedly connected to the end of the circular groove (19); a fixing block (22) is fixedly connected to the inner wall of the circular groove (19); a through hole (23) is formed on the side wall of the fixing block (22); a moving rod (24) is slidably connected to the inner wall of the through hole (23); a second electromagnet (20) is fixedly connected to the end of the moving rod (24) close to the first electromagnet (18); a plug hole (25) is formed on the outer wall of the rotating shaft (11) at the moving rod (24); and the moving rod (24) is adapted to fit the plug hole (25).

6. The engine front cover injection mold that is easy to demould according to claim 5, characterized in that: The adjustment assembly further comprises a spring (21) sleeved on the outer side wall of the moving rod (24), one end of the spring (21) being non-fixedly connected to the fixed block (22), and the other end of the spring (21) being fixedly connected to the side wall of the second electromagnet (20).

7. The engine front cover injection mold that is easy to demould according to claim 5, characterized in that: The length of the moving rod (24) is much greater than the distance between the circular groove (19) and the insertion hole (25).

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