Die-casting shunting die of clutch shell

Abstract

The utility model discloses a die-casting shunting die of a clutch shell, which comprises a body, the body comprises a top plate, an upper die holder and a lower die holder from top to bottom, a die cavity is arranged between the upper die holder and the lower die holder, and a material injection runner for injecting a die-casting forming material towards the die cavity is arranged between the top plate and the upper die holder. The material injection runner comprises a feeding runner connected with the material injection port and a plurality of cavity inlet runners connected with the mold cavity, the diameters of the cavity inlet runners are different, a connecting straight runner is arranged between the feeding runner and the cavity inlet runner with the large diameter, a connecting bent runner is arranged between the feeding runner and the cavity inlet runner with the small diameter, and the connecting straight runner is connected with the cavity inlet runner with the large diameter. The connecting bent flow channel is longer than the connecting straight flow channel, and the connecting bent flow channel is provided with a reducing section for reducing the flow cross section. The die-casting shunting die of the clutch shell guarantees material injection synchronism and material injection uniformity of a plurality of runners.

Description

Technical Field

[0001] The utility model relates to the field of molds, and specifically relates to a die-casting shunt mold for a clutch housing. Background Art

[0002] The structure of the clutch housing is relatively complex and large in volume. Since the clutch has a structure with multiple connection ends, connection holes need to be designed on the clutch housing to ensure that multiple connection ends on the clutch pass through the clutch housing. At the same time, because the sizes of the connection ends are different, the diameters of the connection holes will also be different.

[0003] In the die-casting forming process of the clutch housing, in order to better ensure the uniform distribution of the die-casting material of the clutch housing, the connection hole is used as the injection end of the injection runner, so that the die-casting forming material diffuses around along the connection hole, thereby better ensuring the uniformity of the forming of the clutch housing. However, during the injection of the die-casting material, the synchronization of the injection needs to be ensured. Since the diameters of the connection holes are different, with a conventional shunt runner, the injection flow rates of each connection hole will deviate, resulting in different forming densities in different areas of the clutch housing during the die-casting process, affecting the forming quality of the clutch housing. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a die-casting shunt mold for a clutch housing that can ensure the injection synchronization and injection uniformity of multiple runners.

[0005] The technical solution adopted by the utility model to solve the above problems is: a die-casting shunt mold for a clutch housing, including a main body. The main body includes a top plate, an upper mold base, and a lower mold base from top to bottom. A mold cavity for forming the clutch housing is provided between the upper mold base and the lower mold base. A feed runner for injecting die-casting forming material towards the mold cavity is provided between the top plate and the upper mold base. The feed runner includes an inlet runner connected to the injection port and multiple cavity inlet runners connected to the mold cavity. The diameters of the multiple cavity inlet runners are different. A connecting straight runner is provided between the inlet runner and the cavity inlet runner with a larger diameter, and a connecting bent runner is provided between the inlet runner and the cavity inlet runner with a smaller diameter. The length of the connecting bent runner is longer than that of the connecting straight runner, and a diameter-reducing section for reducing the flow cross-section is provided on the connecting bent runner.

[0006] Compared with the prior art, the advantages of the present utility model are as follows: Since a single feed runner is used for injecting materials into multiple cavity inlet runners, the synchronism of material injection into the multiple cavity inlet runners can be ensured, thereby ensuring the synchronism of filling and cooling of the die-casting molding material entering the die cavity from each cavity inlet runner. And because of the design of using a single feed runner for splitting, the injection pressure of the multiple cavity inlet runners is the same. At this time, due to the different diameters of the cavity inlet runners, the injection speed of the cavity inlet runner with a larger diameter is less than that of the cavity inlet runner with a smaller diameter. Through the design of the connecting curved runner, the length of the connecting curved runner is longer than that of the connecting straight runner, which can reduce the injection speed of the cavity inlet runner with a smaller diameter, thereby narrowing the difference in injection speed between the cavity inlet runners with different diameters, and better ensuring the uniformity of material injection filling in the die cavity. At the same time, the design of the reduced diameter section can reduce the injection amount of the connecting curved runner, thereby also achieving the purpose of reducing the injection speed of the cavity inlet runner with a smaller diameter, narrowing the difference in injection speed between the cavity inlet runners with different diameters, and better ensuring the uniformity of material injection filling in the die cavity. From the dual structure, the injection speed of the cavity inlet runners with different diameters is ensured, the difference in injection speed is reduced, so as to ensure the uniformity of filling of the die-casting molding material in the die cavity and the synchronism of cooling, and ensure the molding quality of the clutch housing.

[0007] As an improvement of the present utility model, multiple said cavity inlet runners are arranged on the same side of the feed runner, and a semi-circular splitting surface is provided at the end of the feed runner. The inlets of the connecting straight runners and the connecting curved runners are both arranged along the radial direction of the splitting surface. Through the above improvement, the uniformity of splitting is ensured, and at the same time, the smooth flow of the die-casting molding material in the connecting straight runners and the connecting curved runners can also be ensured.

[0008] As an improvement of the present utility model, the outlet of the connecting curved runner is arranged along the radial direction of the corresponding cavity inlet runner. The cavity inlet runner with a larger diameter is arranged in the radial direction of the splitting surface. Through the above improvement, the smooth flow of the die-casting molding material between the connecting curved runner and the corresponding cavity inlet runner and between the connecting straight runner and the corresponding cavity inlet runner is ensured.

[0009] As an improvement of the utility model, a flow limiting block is provided on one side of each of the inlet cavity channels away from the shunting surface. Multiple flow limiting blocks are arranged in parallel. The flow limiting block corresponding to the connecting straight channel is perpendicular to the outlet end of the connecting straight channel, and the limiting block corresponding to the connecting bent channel is perpendicular to the outlet end of the connecting bent channel. Adjacent flow limiting blocks are connected into an integral body through a connecting block. The distance between each inlet cavity channel and the corresponding flow limiting block is equal. Through the improvement, the inlet cavity channels are in a longitudinal position, the connecting straight channel and the connecting bent channel are horizontally arranged. When the die-casting forming material flows from the connecting straight channel to the corresponding inlet cavity channel and when it flows from the connecting bent channel to the corresponding inlet cavity channel, there will be a change in direction. The limiting block also has the effect of a reverse acting force, enabling the die-casting forming material to smoothly change direction and flow into the inlet cavity channel. The equal distance between each inlet cavity channel and the corresponding flow limiting block can ensure the consistency of the reverse acting force. The injection pressure of the connecting bent channel and the connecting straight channel is the same, thus ensuring the consistency of the pressure when the die-casting forming material enters different inlet cavity channels, so as to better control the uniformity of the filling of the die-casting forming material entering the mold cavity from each inlet cavity channel.

[0010] As an improvement of the utility model, the injection flow channel is formed by splicing a shunting seat and a shaping seat. The shunting seat is fixedly connected to the upper mold base, and the shaping seat is fixedly connected to the top plate. The bottom of the connecting bent channel and the bottom of the connecting straight channel are arranged on the shunting seat, and the top of the connecting bent channel and the top of the connecting straight channel are arranged on the shaping seat. And the shaping seat is provided with a funnel-shaped inlet cavity groove at the inlet end of each inlet cavity channel. The inlet cavity groove is perpendicular to the flow limiting block. Through the improvement, the splicing design of the shunting seat and the shaping seat realizes the formation of the injection flow channel, and the design of the inlet cavity groove can ensure the flow compactness of the die-casting forming material at the inlet end of the inlet cavity channel and ensure the injection quality.

[0011] As an improvement of the utility model, a runner demolding ejector pin movably connected along a direction perpendicular to the flow limiting block is provided on each flow limiting block. The runner demolding ejector pin is used for demolding the die-casting forming material in the inlet cavity groove. Through the improvement, the demolding of the die-casting forming material in the inlet cavity groove is realized.

[0012] As an improvement of the utility model, the runner demolding ejector pin is provided with a spraying hole. The spraying hole is used for spraying a demolding agent on the connecting bent channel, the connecting straight channel, and the inlet cavity channel. Through the improvement, before starting the injection, the runner demolding ejector pin can spray the demolding agent on the connecting bent channel, the connecting straight channel, and the inlet cavity channel, better ensuring the demolding effect and reducing the process of manually spraying the demolding agent on the connecting bent channel, the connecting straight channel, and the inlet cavity channel. Description of the Drawings

[0013] Figure 1It is a schematic diagram of the overall sectional structure of the present utility model.

[0014] Figure 2 It is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 3 It is a schematic diagram of the structure of the clutch housing of the present utility model.

[0016] Figure 4 It is a schematic diagram of the connection structure between the flow dividing seat and the shaping seat of the present utility model.

[0017] Figure 5 It is a schematic diagram of the flow dividing seat of the present utility model.

[0018] Figure 6 It is a schematic diagram of the shaping seat of the present utility model.

[0019] Figure 7 It is a schematic diagram of the structure when the runner demolding ejector pin of the present utility model ejects on the flow dividing seat.

[0020] Figure 8 It is a schematic diagram of the connection structure between the runner demolding ejector pin and the cavity inlet groove of the present utility model.

[0021] Figure 9 It is a schematic diagram of the driving connection structure of the runner demolding ejector pin of the present utility model.

[0022] As shown in the figure: 1. Top plate, 2. Upper die base, 3. Lower die base, 4. Mold cavity, 5. Injection runner, 5.1. Feeding runner, 5.1.1. Dividing surface, 5.2. Cavity inlet runner, 5.3. Connecting straight runner, 5.4. Connecting curved runner, 5.4.1. Reducing diameter section, 6. Flow limiting block, 6.1. Connecting block, 7. Flow dividing seat, 8. Shaping seat, 8.1. Cavity inlet groove, 9. Runner demolding ejector pin, 9.1. Spraying hole, 9.2. Driving cylinder, 9.3. Driving block, 10. Clutch housing, 10.1. Connecting hole, 11. Container. Detailed implementation manners

[0023] The following further describes the embodiments of the present utility model with reference to the accompanying drawings.

[0024] As Figures 1 - 3 shown, a die-casting flow dividing mold for a clutch housing includes a body, and the body from top to bottom includes a top plate 1, an upper die base 2 and a lower die base 3. A mold cavity 4 for forming the clutch housing 10 is provided between the upper die base 2 and the lower die base 3. The formed clutch housing 10 in the mold cavity 4 includes three connecting holes 10.1 with different diameters. An injection runner 5 for injecting die-casting molding materials towards the mold cavity 4 is provided between the top plate 1 and the upper die base 2. The injection runner 5 includes a feeding runner 5.1 connected to the injection port and three cavity inlet runners 5.2 connected to the mold cavity 4.

[0025] As Figure 4 , Figure 5 shown, each cavity inlet channel 5.2 is correspondingly connected to a connection hole 10.1, such that the diameters of the three cavity inlet channels 5.2 are not the same. The three cavity inlet channels 5.2 include one cavity inlet channel 5.2 with a relatively large diameter and two cavity inlet channels 5.2 with relatively small diameters. The two cavity inlet channels 5.2 with relatively small diameters are respectively arranged on both sides of the cavity inlet channel 5.2 with a relatively large diameter. A connection straight channel 5.3 is provided between the feed channel 5.1 and the cavity inlet channel 5.2 with a large diameter, and a connection bent channel 5.4 is provided between the feed channel 5.1 and the cavity inlet channel 5.2 with a small diameter. The length of the connection bent channel 5.4 is longer than the length of the connection straight channel 5.3. A diameter-reducing section 5.4.1 for reducing the flow cross-section is provided on the connection bent channel 5.4. Multiple cavity inlet channels 5.2 are arranged on the same side of the feed channel 5.1. A semi-circular flow dividing surface 5.1.1 is provided at the end of the feed channel 5.1. The inlets of the connection straight channel 5.3 and the connection bent channel 5.4 are both arranged along the radial direction of the flow dividing surface 5.1.1. The outlet of the connection bent channel 5.4 is arranged along the radial direction of the corresponding cavity inlet channel 5.2. The cavity inlet channel 5.2 with a large diameter is arranged in the radial direction of the flow dividing surface 5.1.1.

[0026] As Figure 5 , Figure 7 shown, a flow-limiting block 6 is provided on the side of each cavity inlet channel 5.2 away from the flow dividing surface 5.1.1. Multiple flow-limiting blocks 6 are arranged in parallel. The flow-limiting block 6 corresponding to the connection straight channel 5.3 is perpendicular to the outlet end of the connection straight channel 5.3, and the limiting block corresponding to the connection bent channel 5.4 is perpendicular to the outlet end of the connection bent channel 5.4. Adjacent flow-limiting blocks 6 are connected into an integral body through a connection block 6.1. The distance between each cavity inlet channel 5.2 and the corresponding flow-limiting block 6 is equal.

[0027] As Figures 5 - 8 shown, the injection channel 5 is formed by splicing a flow dividing seat 7 and a shaping seat 8. The flow dividing seat 7 is fixedly connected to the upper die base 2, and the shaping seat 8 is fixedly connected to the top plate 1. The bottom of the connection bent channel 5.4 and the bottom of the connection straight channel 5.3 are arranged on the flow dividing seat 7, and the top of the connection bent channel 5.4 and the top of the connection straight channel 5.3 are arranged on the shaping seat 8. Moreover, the shaping seat 8 is provided with a funnel-shaped cavity inlet groove 8.1 at the inlet end of each cavity inlet channel 5.2. The cavity inlet groove 8.1 is perpendicular to the flow-limiting block 6.

[0028] As Figures 7 - 9As shown, each of the current-limiting blocks 6 is provided with a runner demolding ejector pin 9 movably connected along a direction perpendicular to the current-limiting block 6. The runner demolding ejector pin 9 is used for demolding the die-casting molding material in the cavity inlet groove 8.1. The runner demolding ejector pin 9 is provided with a spraying hole 9.1, and the spraying hole 9.1 is used for spraying a mold release agent on the connecting curved runner 5.4, the connecting straight runner 5.3, and the cavity inlet runner 5.2. At one end of the runner demolding ejector pin 9, there is a driving cylinder 9.2 for driving the runner demolding ejector pin 9 to move along the axial direction of the current-limiting block 6. A driving block 9.3 is connected to the output end of the driving cylinder 9.2. The runner demolding ejector pin 9 is fixedly connected to the driving block 9.3. A flow channel for the mold release agent to flow is provided on the axis of the runner demolding ejector pin 9. The spraying hole 9.1 is provided at the output end of the flow channel, and the input end of the flow channel is provided on the driving block 9.3 and is connected to an external container 11 for storing the mold release agent.

[0029] Through the design of the die-casting split mold for the clutch housing, it is ensured that the cavity inlet runners 5.2 with different diameters can also obtain relatively similar injection speeds, so as to ensure strong filling uniformity of the die-casting molding materials injected into the cavity inlet runners 5.2 with different diameters in the mold cavity 4, and the molding quality of the clutch housing 10 can be guaranteed.

[0030] The above is only an illustration of the best embodiment of the present invention, but it should not be construed as a limitation of the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to change. All changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. A die-casting splitter mold for a clutch housing, characterized in that: The invention comprises a main body, which comprises, from top to bottom, a top plate (1), an upper die seat (2) and a lower die seat (3); a die cavity (4) for molding a clutch housing (10) is provided between the upper die seat (2) and the lower die seat (3); an injection channel (5) for injecting die-casting molding material into the die cavity (4) is provided between the top plate (1) and the upper die seat (2); the injection channel (5) comprises a feed channel (5.1) connected to a material injection port and a plurality of cavity inlet channels (5.2) connected to the die cavity (4). ), the diameters of the plurality of cavity inlet channels (5.2) are not the same, a connecting straight channel (5.3) is provided between the feed channel (5.1) and the cavity inlet channel (5.2) with a larger diameter, a connecting curved channel (5.4) is provided between the feed channel (5.1) and the cavity inlet channel (5.2) with a smaller diameter, the length of the connecting curved channel (5.4) is longer than the length of the connecting straight channel (5.3), and a reducing section (5.4.1) for reducing the flow cross section is provided on the connecting curved channel (5.4).

2. A die-casting splitter mold for a clutch housing according to claim 1, characterized in that: The plurality of cavity inlet channels (5.2) are arranged on the same side of the feed channel (5.1), a semicircular flow dividing surface (5.1.1) is arranged at the end of the feed channel (5.1), and the inlet connecting the straight channel (5.3) and the inlet connecting the curved channel (5.4) are both arranged along the radial direction of the flow dividing surface (5.1.1).

3. A die-casting splitter mold for a clutch housing according to claim 2, characterized in that: The outlet of the connecting curved flow channel (5.4) is arranged along the radial direction of the corresponding cavity inlet flow channel (5.2), and the cavity inlet flow channel (5.2) with a large diameter is arranged in the radial direction of the flow dividing surface (5.1.1).

4. A die-casting splitter mold for a clutch housing according to claim 2, characterized in that: A flow limiting block (6) is provided on a side of each of the cavity inlet flow channels (5.2) away from the flow dividing surface (5.1.1), and the plurality of flow limiting blocks (6) are arranged in parallel. The flow limiting block (6) corresponding to the connecting straight flow channel (5.3) is perpendicular to the outlet end of the connecting straight flow channel (5.3), and the limiting block corresponding to the connecting curved flow channel (5.4) is perpendicular to the outlet end of the connecting curved flow channel (5.4), and adjacent flow limiting blocks (6) are connected into one piece via a connecting block (6.1), and the distance between each of the cavity inlet flow channels (5.2) and the corresponding flow limiting block (6) is equal.

5. A die-casting splitter mold for a clutch housing according to claim 4, characterized in that: The injection flow channel (5) is formed by splicing a flow diverter seat (7) and a shaping seat (8); the flow diverter seat (7) is fixedly connected to the upper mold seat (2); the shaping seat (8) is fixedly connected to the top plate (1); the bottom of the connecting curved flow channel (5.4) and the bottom of the connecting straight flow channel (5.3) are arranged on the flow diverter seat (7); the top of the connecting curved flow channel (5.4) and the top of the connecting straight flow channel (5.3) are arranged on the shaping seat (8); and the shaping seat (8) is provided with a funnel-shaped cavity inlet groove (8.1) at the inlet end of each cavity inlet flow channel (5.2); the cavity inlet groove (8.1) is arranged perpendicular to the current limiting block (6).

6. A die-casting splitter mold for a clutch housing according to claim 5, characterized in that: Each of the current limiting blocks (6) is provided with a flow channel demoulding ejector pin (9) which is movably connected in a direction perpendicular to the current limiting block (6), and the flow channel demoulding ejector pin (9) is used to demould the die-casting molding material in the cavity groove (8.1).

7. A die-casting splitter mold for a clutch housing according to claim 6, characterized in that: The flow channel demoulding ejector pin (9) is provided with a spraying hole (9.1), and the spraying hole (9.1) is used to spray a demoulding agent on the connecting curved flow channel (5.4), the connecting straight flow channel (5.3), and the cavity inlet flow channel (5.2).

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