Distribution valve production mold convenient for eliminating air hole defect

Abstract

The utility model provides a distribution valve production die convenient to eliminate air hole defect, relates to the die-casting die field, including: lower die, anti-blocking mechanism and upper die, lower die and upper die are connected through hydraulic rod, the inside of lower die is provided with cavity, the upper port edge of cavity is provided with air guide groove that extends outward, the upper port edge of cavity is provided with the air guide groove, the air guide groove is provided with the anti-blocking mechanism, the anti-blocking mechanism is connected with the upper die through hydraulic rod. An ejection block is arranged in the cavity, the lower end of the ejection block is connected with an upper sliding plate, the lower side of the upper sliding plate is connected with a lower sliding plate through a connecting rod, the lower side of the lower sliding plate is connected with an electric push rod, the anti-blocking mechanism is connected to the front side and the rear side of the lower mold, the anti-blocking mechanism comprises an air cylinder installed on the outer wall of the lower mold, and the outer end of the air cylinder is connected with a cleaning frame. The die-casting die solves the problems that air holes related to an existing die-casting die of the distribution valve are prone to being blocked, exhaust is not smooth, and an extrusion plate demolding mechanism related to the die-casting die of the distribution valve is poor in adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting molds, and particularly relates to a mold for producing a distribution valve which is convenient for eliminating air hole defects. Background Art

[0002] The die-casting mold is a method of casting liquid die forging, a process completed on a special die-casting forging machine. Different molds are composed of different parts, and the die-casting mold of a hydraulic brake distribution valve is an important part among them. After retrieval, the prior art (application number: CN202320582610.1) records that "a die-casting mold of a hydraulic brake distribution valve includes a base, a lower mold base and a first electric push rod. The characteristics are as follows: a lower mold base is fixed at the middle position of the top end of the base, and first electric push rods are fixed at the corner positions of the top end of the base. A top seat is fixed at the top end of the first electric push rod, and an upper mold base is fixed at the middle position of the bottom end of the top seat. By setting an extrusion structure in the utility model, when the second electric push rod is started, the second electric push rod will drive the movable plate to slide on the outer side of the sliding rod, and the movable plate will drive the extrusion plate to move up and down through the movable rod. Under the action of the sliding rod, the movable plate is prevented from shaking horizontally during movement, realizing the function of facilitating demoulding of the device, and thus improving the applicability of the die-casting mold of the hydraulic brake distribution valve during use."

[0003] However, although the die-casting mold of the hydraulic brake distribution valve in the prior art realizes the effect of facilitating demoulding, there are still some deficiencies: the air holes involved in the existing die-casting mold of the distribution valve are easily blocked by external dust or metal liquid impurities inside the mold, resulting in poor exhaust, and further resulting in product defects in the die-cast parts of the distribution valve; secondly, the involved extrusion plate is a flat plate structure with poor adaptability, and the forming cavity of the distribution valve is not a regular flat plate structure. Therefore, when the flat plate structure of the extrusion plate ejects, the stress points of the die-cast parts are uneven, which may further lead to poor demoulding of the die-cast parts and may damage the die-cast parts seriously in severe cases. Summary of the Utility Model

[0004] In order to overcome the defects existing in the prior art, the utility model provides a mold for producing a distribution valve which is convenient for eliminating air hole defects, so as to solve the problems that the air holes involved in the existing die-casting mold of the distribution valve are easily blocked, resulting in poor exhaust, and the demoulding mechanism of the involved extrusion plate has poor adaptability.

[0005] To achieve the above object, a mold for producing a distribution valve that facilitates eliminating air hole defects is provided, including: a lower mold, an anti-blocking mechanism, and an upper mold. The lower mold and the upper mold are connected by a hydraulic rod. A cavity is provided inside the lower mold. An air guide groove extending outward is provided at the edge of the upper port of the cavity. A ejector block is provided in the cavity, and a upper sliding plate is connected to the lower end of the ejector block. The lower side of the upper sliding plate is connected to a lower sliding plate by a connecting rod, and an electric push rod is connected to the lower side of the lower sliding plate. The anti-blocking mechanism is connected to the front and rear sides of the lower mold, and the anti-blocking mechanism includes a cylinder installed on the outer wall of the lower mold, and a cleaning frame is connected to the outer end of the cylinder. The cleaning frame includes a vertical rod, and a horizontal rod is connected to the upper end of the vertical rod, and a cleaning rod is connected to the side of the horizontal rod facing the lower mold.

[0006] Further, a convex mold is provided at the lower end of the upper mold, and an inclined guide post is provided outside the convex mold, and the inclined guide post is inserted into the inclined guide hole provided on the outer side of the cavity in a matching manner.

[0007] Further, an upper movable cavity is provided on the lower side of the cavity, and a lower movable cavity is provided on the lower side of the upper movable cavity. At the same time, a cavity wall partition layer is provided between the cavity and the upper movable cavity, and a mold partition layer is provided between the upper movable cavity and the lower movable cavity.

[0008] Further, when the ejector block is in the non-ejected state, the upper end surface of the ejector block is flush with the upper end surface of the cavity wall partition layer, and the ejector block slides through the cavity wall partition layer.

[0009] Further, the upper sliding plate is slidably connected in the upper movable cavity, the lower sliding plate is slidably connected in the lower movable cavity, and the connecting rod slides through the mold partition layer. At the same time, a guide rod slides through the lower sliding plate, and the guide rod is vertically fixed in the lower movable cavity.

[0010] Further, a linkage frame is connected to the outer end of the cylinder, and the linkage frame is of an N-shaped structure when viewed from above. At the same time, outer rods are connected to both ends of the linkage frame, and a sliding rod is slidably connected to the outer end of the outer rod, and the sliding rod is fixed to the outer wall of the lower mold.

[0011] Further, the vertical rod is connected to the upper side of the outer rod, and there are two vertical rods. At the same time, the upper ends of the vertical rods are connected to both ends of the horizontal rod.

[0012] Further, the anti-blocking mechanism further includes a micro air pump installed on the outer wall of the cylinder, and the air outlet end of the micro air pump is connected to a hose through a three-way part, and the hose is connected to each cleaning rod.

[0013] Further, the cleaning rod includes an end plate, and a magnetic rod is connected to the lower end of the end plate. At the same time, a brush is provided at the lower end of the magnetic rod, and a cavity is provided inside the magnetic rod. At the same time, an air jet port communicating with the cavity is provided on the outer wall of the magnetic rod, and the cavity is communicated with the hose.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. During use, before each mold closing, the cylinder is controlled by an external controller to act. The cleaning frame is driven by a linkage frame, an outer rod and a sliding rod to move downward along the air guide groove opened on the upper end face of the lower mold. At the same time, the micro air pump is started. When the cleaning rod included in the cleaning frame enters the air guide groove, the lower bristles contact the inner wall of the air guide groove and clean impurities during the movement. At the same time, under the action of the micro air pump, the air jet port can also perform air jet dust removal operation. At the same time, the magnetic plate adsorbs and cleans metal impurities. During the whole cleaning process, dust, non-metallic impurities and metal materials in the air guide groove are cleaned up, so as to keep the air guide groove unobstructed in the mold closed state, which is convenient for discharging gas during the pressurization process of injecting molten metal into the cavity, eliminating the air hole defects in the die casting process of the distribution valve and improving the product qualification rate;

[0016] 2. During demoulding, the electric push rod is started, and the ejector block is ejected from the bottom cavity wall of the cavity through the lower slide plate, connecting rod and upper slide plate. Since the starting positions of the heights of the ejector blocks are different and are adapted to the cavity structure of the distribution valve, multiple groups of ejector blocks can contact the distribution valve die casting body at the same time, so that the ejection force application points of the die casting are evenly distributed, improving the adaptability of the ejection mechanism and avoiding the phenomenon of product damage caused by unsmooth demoulding. At the same time, the sliding gap between the ejector block and the interlayer of the cavity wall can also be used as an exhaust channel to further enhance the exhaust effect inside the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of an embodiment of the present utility model.

[0018] Figure 2 It is a top view structural schematic diagram of the lower mold of an embodiment of the present utility model.

[0019] Figure 3 It is a front view sectional structural schematic diagram of the lower mold of an embodiment of the present utility model.

[0020] Figure 4 It is of an embodiment of the present utility model Figure 2 structural schematic diagram of part A.

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the cleaning frame of an embodiment of the present utility model.

[0022] Figure 6 It is of an embodiment of the present utility model Figure 5 structural schematic diagram of part B.

[0023] In the figure: 1. Lower mold; 10. Air guide groove; 11. Cavity; 12. Ejector block; 13. Upper slide plate; 14. Upper movable cavity; 15. Connecting rod; 16. Lower slide plate; 17. Guide rod; 18. Electric push rod; 19. Lower movable cavity; 2. Anti-blocking mechanism; 21. Cylinder; 22. Outer rod; 23. Cleaning frame; 231. Vertical rod; 232. Horizontal rod; 233. Cleaning rod; 2331. End plate; 2332. Magnetic rod; 2333. Brush hair; 2334. Air jet port; 24. Linkage frame; 25. Slide rod; 26. Micro air pump; 27. Three-way piece; 28. Hose; 3. Upper mold. Specific implementation mode

[0024] Refer to Figures 1 to 6 As shown in the figure, the utility model provides a mold for producing a distribution valve which is convenient for eliminating air hole defects, including: a lower mold 1, an anti-blocking mechanism 2 and an upper mold 3. The lower mold 1 and the upper mold 3 are connected by a hydraulic rod. A cavity 11 is opened inside the lower mold 1. An air guide groove 10 extending outward is opened at the edge of the upper port of the cavity 11. And an ejector block 12 is arranged in the cavity 11. And the lower end of the ejector block 12 is connected with an upper slide plate 13. The lower side of the upper slide plate 13 is connected with a lower slide plate 16 through a connecting rod 15. And the lower side of the lower slide plate 16 is connected with an electric push rod 18. The anti-blocking mechanism 2 is connected to the front and rear sides of the lower mold 1. And the anti-blocking mechanism 2 includes a cylinder 21 installed on the outer wall of the lower mold 1. And the outer end of the cylinder 21 is connected with a cleaning frame 23. The cleaning frame 23 includes a vertical rod 231. And the upper end of the vertical rod 231 is connected with a horizontal rod 232. And a cleaning rod 233 is connected to the side of the horizontal rod 232 facing the lower mold 1.

[0025] In this embodiment, the lower mold 1, the anti-blocking mechanism 2 and the upper mold 3 constitute the main structure of the mold for producing the distribution valve which is convenient for eliminating air hole defects involved in this application.

[0026] Specifically, a plurality of groups of parallel air guide grooves 10 are opened on the upper end surface of the lower mold 1 and extend outward to the edge of the lower mold 1. Then, when the mold is closed, the cavity 11 is communicated with the outside through the air guide groove 10 to achieve the exhaust effect.

[0027] Such as Figure 1 And Figure 3As shown in the figure, a punch is provided at the lower end of the upper mold 3, and a cam pin is provided on the outside of the punch. The cam pin is inserted into a cam hole opened on the outside of the cavity 11 in a matching manner. An upper movable cavity 14 is opened on the lower side of the cavity 11, and a lower movable cavity 19 is opened on the lower side of the upper movable cavity 14. At the same time, a cavity wall partition layer is provided between the cavity 11 and the upper movable cavity 14, and a mold partition layer is provided between the upper movable cavity 14 and the lower movable cavity 19. When the ejector block 12 is in the non-ejected state, the upper end surface of the ejector block 12 is flush with the upper end surface of the cavity wall partition layer, and the ejector block 12 slides through the cavity wall partition layer. The upper slide plate 13 is slidably connected to the upper movable cavity 14, the lower slide plate 16 is slidably connected to the lower movable cavity 19, and the connecting rod 15 slides through the mold partition layer. At the same time, a guide rod 17 slides through the inside of the lower slide plate 16, and the guide rod 17 is vertically fixed in the lower movable cavity 19.

[0028] Specifically, the cavity wall partition layer involved is actually the bottom cavity wall of the cavity 11 and is an uneven plane; the mold partition layer involved is actually the self-structure of the lower mold 1, so as to separate the upper movable cavity 14 and the lower movable cavity 19.

[0029] As a preferred embodiment, by providing a mold partition layer, the connecting rod 15 slides up and down inside it to achieve a limiting and guiding effect, which is the same as the effect achieved by connecting with the guide rod 17 and the lower slide plate 16, strengthening the stability of the movement of the ejector block 12.

[0030] As shown in Figure 2 , Figure 4 , Figure 5 and Figure 6 the figure, a linkage frame 24 is connected to the outer end of the air cylinder 21. The linkage frame 24 is N-shaped in a top view. Two outer rods 22 are connected to both ends of the linkage frame 24. At the same time, a slide rod 25 is slidably connected to the outer end of the outer rod 22, and the slide rod 25 is fixed to the outer wall of the lower mold 1. A vertical rod 231 is connected to the upper side of the outer rod 22, and two vertical rods 231 are provided. At the same time, the upper ends of the vertical rods 231 are connected to both ends of a cross rod 232. The anti-clogging mechanism 2 further includes a micro air pump 26 installed on the outer wall of the air cylinder 21. The air outlet end of the micro air pump 26 is connected to a hose 28 through a tee 27, and the hose 28 is connected to each cleaning rod 233. The cleaning rod 233 includes an end plate 2331, and a magnetic rod 2332 is connected to the lower end of the end plate 2331. At the same time, a brush 2333 is provided at the lower end of the magnetic rod 2332. A cavity is opened inside the magnetic rod 2332, and an air jet port 2334 communicating with the cavity is opened on the outer wall of the magnetic rod 2332, and the cavity is communicated with the hose 28.

[0031] Specifically, the cleaning rods 233 are cross-connected through a plastic pipe or a hose 28 to achieve the effect of air passing through all the magnetic rods 2332.

[0032] Specifically, the magnetic rod 2332 is made of a magnet material and is in an inverted triangular prism structure, which is convenient for sliding and plugging with the air guide groove 10 in a matching manner, and each magnetic rod 2332 corresponds to cleaning one air guide groove 10.

[0033] During use, before each mold closing, the cylinder is controlled to act through an external controller. The cleaning frame is driven to move towards the air guide groove opened on the upper end face of the lower mold through the linkage frame, outer rod and sliding rod. At the same time, the micro air pump is started. When the cleaning rod included in the cleaning frame enters the air guide groove, the lower bristles contact the inner wall of the air guide groove and clean impurities during movement. At the same time, under the action of the micro air pump, the air jet port can also perform air jet dust removal operation. At the same time, the magnetic plate adsorbs and cleans metal impurities. During demolding, the electric push rod is started, and through the lower slide plate, connecting rod and upper slide plate, the ejector block is ejected from the bottom cavity wall of the cavity. Since the starting positions of the heights of the ejector blocks are different and the cavity structure of the distribution valve is adapted, multiple groups of ejector blocks can contact the distribution valve die-casting body at the same time, so that the ejection force application points of the die-casting are evenly distributed, improving the adaptability of the ejection mechanism.

[0034] The mold for producing a distribution valve for facilitating the elimination of air hole defects of the present utility model can effectively solve the problems that the air holes involved in the existing die-casting mold of the distribution valve are prone to blockage, resulting in poor exhaust, and the adaptability of the extrusion plate demolding mechanism involved is poor. On the basis of the existing technology of the mold for producing a distribution valve for facilitating the elimination of air hole defects, it avoids the defect of poor exhaust caused by the easy blockage of the air guide holes, and at the same time facilitates improving the stability and adaptability of the demolding mechanism, and further strengthens the exhaust effect through the demolding structure to eliminate the air hole defects.

Claims

1. A mold for producing a dispensing valve that is convenient for eliminating pore defects, comprising: A lower mold (1), an anti-blocking mechanism (2) and an upper mold (3), wherein the lower mold (1) and the upper mold (3) are connected via a hydraulic rod, and characterized in that: a cavity (11) is provided inside the lower mold (1), an air guide groove (10) extending outward is provided at the edge of the upper port of the cavity (11), an ejection block (12) is provided in the cavity (11), and an upper slide plate (13) is connected to the lower end of the ejection block (12), and the lower side of the upper slide plate (13) is connected to a lower slide plate (16) via a connecting rod (15), The lower side of the lower slide plate (16) is connected to an electric push rod (18), the anti-blocking mechanism (2) is connected to the front and rear sides of the lower mold (1), and the anti-blocking mechanism (2) includes a cylinder (21) installed on the outer wall of the lower mold (1), and the outer end of the cylinder (21) is connected to a cleaning rack (23), the cleaning rack (23) includes a vertical rod (231), and the upper end of the vertical rod (231) is connected to a transverse rod (232), and the side of the transverse rod (232) facing the lower mold (1) is connected to a cleaning rod (233).

2. A dispensing valve production mold that is convenient for eliminating pore defects according to claim 1, characterized in that: The lower end of the upper mold (3) is provided with a punch, and the outer side of the punch is provided with an inclined guide column, and the inclined guide column is matched and plugged with an inclined guide hole opened on the outer side of the cavity (11).

3. A dispensing valve production mold that is convenient for eliminating pore defects according to claim 1, characterized in that: An upper movable cavity (14) is provided at the lower side of the mold cavity (11), and a lower movable cavity (19) is provided at the lower side of the upper movable cavity (14). A cavity wall partition is provided between the mold cavity (11) and the upper movable cavity (14), and a mold partition is provided between the upper movable cavity (14) and the lower movable cavity (19).

4. A dispensing valve production mold that is convenient for eliminating pore defects according to claim 1, characterized in that: When the ejection block (12) is not ejected, its upper end surface is kept flush with the upper end surface of the cavity wall partition, and the ejection block (12) slides through the cavity wall partition.

5. A dispensing valve production mold that is convenient for eliminating pore defects according to claim 1, characterized in that: The upper slide plate (13) is slidably connected in the upper movable cavity (14), the lower slide plate (16) is slidably connected in the lower movable cavity (19), and the connecting rod (15) slides through the mold partition, and at the same time, a guide rod (17) slides through the interior of the lower slide plate (16), and the guide rod (17) is vertically fixed in the lower movable cavity (19).

6. A dispensing valve production mold that is convenient for eliminating pore defects according to claim 1, characterized in that: The outer end of the cylinder (21) is connected to a linkage frame (24), and the linkage frame (24) is an N-shaped structure when viewed from above, and the two ends of the linkage frame (24) are connected to an outer rod (22), and the outer end of the outer rod (22) is slidably connected to a sliding rod (25), and the sliding rod (25) is fixed to the outer wall of the lower mold (1).

7. A dispensing valve production mold that is convenient for eliminating pore defects according to claim 1, characterized in that: The vertical rod (231) is connected to the upper side of the outer rod (22), and two vertical rods (231) are provided, and the upper ends of the vertical rods (231) are connected to the two ends of the transverse rod (232).

8. A dispensing valve production mold that is convenient for eliminating pore defects according to claim 1, characterized in that: The anti-blocking mechanism (2) further comprises a micro air pump (26) mounted on the outer wall of the cylinder (21), and the air outlet end of the micro air pump (26) is connected to a hose (28) via a three-way piece (27), and the hose (28) is connected to each cleaning rod (233).

9. A dispensing valve production mold that is convenient for eliminating pore defects according to claim 1, characterized in that: The cleaning rod (233) comprises an end plate (2331), and the lower end of the end plate (2331) is connected to a magnetic rod (2332), and the lower end of the magnetic rod (2332) is provided with bristles (2333), and a cavity is provided inside the magnetic rod (2332), and an air jet (2334) connected to the cavity is provided on the outer wall of the magnetic rod (2332), and the cavity is connected to the hose (28).

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