Brake valve body production mold

Abstract

The present application discloses a mold for manufacturing a brake valve body, which belongs to the field of brake valve bodies. It includes: a fixed mold frame; a movable mold frame; a fixed mold core, a first mold cavity is provided on the fixed mold core; a movable mold core, a second mold cavity is provided on the movable mold core; a pouring device; a gate is provided on the fixed mold frame; the pouring device includes a gate sleeve provided on the gate; a main flow channel connected to the gate and the second mold cavity is provided on the movable mold core; a groove body connected to the first mold cavity is provided on the fixed mold core, and a first slow flow block and a second slow flow block are provided in the groove body, and a gap is provided between the first slow flow block and the second slow flow block; when the first mold cavity and the second mold cavity are merged, the first slow flow block and the second slow flow block are located in the main flow channel, dividing the main flow channel into a first diversion island and a second diversion island, the volume of the first diversion island is greater than the volume of the second diversion island, and the first diversion island and the second diversion island are biased to one side of the main flow channel. The beneficial effect of the present application is to provide a mold for manufacturing a brake valve body that reduces flushing.

Description

Technical Field

[0001] The present application relates to the field of brake valve bodies, and in particular to a manufacturing mold for a brake valve body. Background Art

[0002] Brake valve, English name: brake valve, automobile brake valve is divided into air brake valve and hydraulic brake valve. The normal operation of the brake valve is of great significance for parking, and it provides technical support for the smooth braking of the car. The development of this technology is of great significance to automobile manufacturing and road traffic safety. The working principle of the anti-brake valve is that when the brake pedal is stepped on, the brake valve arm is pulled to press down the upper seat of the balance spring, and the balance arm is pressed down by the balance spring and the lower seat, the steel ball, the push rod and the steel ball to push the two-chamber diaphragm assembly downward. After eliminating the gap, the exhaust valve port is closed first, and then the intake valve port is opened. The compressed air in the air reservoir enters each brake air chamber through the brake valve, and the push rod pushes the adjustment arm to rotate the cam, and the brake shoe presses against the brake drum to produce a braking effect. The brake valve body is a very critical part of the entire brake system. It is the carrier of the brake system. Therefore, how to achieve the functions of structural stability, strength stability, and internal quality stability of the brake valve body is crucial to the entire system.

[0003] The traditional brake valve body mold structure manufacturing process has only one flow channel connected to the mold cavity, which makes the injection liquid enter the mold cavity quickly, causing scouring and air entrapment on the flow channel. Unstable product shrinkage holes can cause problems such as brake valve body leakage, leading to safety accidents and unstable structural strength. Utility Model Content

[0004] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0005] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a mold for manufacturing a brake valve body, including:

[0006] Fixed mold frame;

[0007] The movable mold frame moves relative to the fixed mold frame;

[0008] A fixed mold core is arranged on the fixed mold frame, and a first mold cavity for preparing a brake valve body is opened on the fixed mold core;

[0009] The movable mold core is arranged on the movable mold frame, and a second mold cavity matching with the first mold cavity is opened on the movable mold core. When the fixed mold core abuts against the movable mold core, the first mold cavity and the second mold cavity are combined to form a complete contour cavity for preparing the brake valve body;

[0010] The movable mold foot is arranged on the movable mold frame;

[0011] Pouring device;

[0012] A gate is provided through the fixed mold frame; the pouring device includes a gate sleeve provided on the gate, and a guide column fixedly provided on the movable mold core, and the guide column is located in the gate;

[0013] A main channel connected to the gate is provided on the movable mold core, and one end of the main channel is connected to the second mold cavity;

[0014] A groove body connected to the first mold cavity is opened on the fixed mold core, and a first slow flow block and a second slow flow block are arranged in the groove body, and a gap is provided between the first slow flow block and the second slow flow block; when the first mold cavity and the second mold cavity are merged, the first slow flow block and the second slow flow block are respectively located in the main flow channel, so that the main flow channel and the second mold cavity are connected at the connection point divided into a first diverter island and a second diverter island, the volume of the first diverter island is greater than that of the second diverter island, and the first diverter island and the second diverter island are biased to one side of the main flow channel.

[0015] The present application divides the injection liquid from a main channel into a first diversion island and a second diversion island and flows them into the second mold cavity, thereby increasing the stability of the injection liquid flow, reducing problems such as scouring and deformation of the main channel, improving the qualified rate of shrinkage holes inside the product, improving the stability of product size, and enhancing the structural strength of the product.

[0016] Furthermore, the inner wall of the groove body is recessed in a direction away from one end of the movable mold core to form a slope portion.

[0017] Furthermore, it also includes:

[0018] A first auxiliary mold, used for preparing various cavities of the brake valve body;

[0019] The first auxiliary mold includes:

[0020] A first fixing frame is fixed on the movable mold frame;

[0021] The cylinder is fixed on the first fixing frame;

[0022] A connecting block, fixedly arranged on the piston rod of the cylinder;

[0023] A first cushion block is fixedly arranged on the connecting block;

[0024] A first support rod, fixedly mounted on the first cushion block;

[0025] The first support rod is driven by the cylinder to be inserted into the second mold cavity.

[0026] Furthermore, it also includes:

[0027] The second auxiliary mold is two symmetrically arranged on both ends of the movable mold frame;

[0028] The second auxiliary mold includes:

[0029] A second fixing frame is fixed on the movable mold frame;

[0030] A moving block is slidably disposed on the second fixed frame;

[0031] A guide rod, one end of which is fixedly connected to the moving block, and the other end of which is movably connected to the second fixed frame;

[0032] A second cushion block is fixedly arranged on the moving block;

[0033] A second support rod is fixedly mounted on the second cushion block, and one end of the second support rod is inserted into the second mold cavity;

[0034] The positioning rod is arranged on the moving block through and one end of the positioning rod is in contact with the moving mold frame.

[0035] Furthermore, it also includes:

[0036] A material ejecting device, used to eject the prepared brake valve body out of the mold;

[0037] The ejector device includes:

[0038] Push plate, slidably arranged on the movable mold foot;

[0039] A reset rod, fixed on the push plate;

[0040] There are several push rods fixed on the push plate;

[0041] One end of the ejector pin is inserted into the second mold cavity.

[0042] Furthermore, a plurality of overflow grooves communicating with the second mold cavity are provided on the movable mold core, and one end of the ejector pin is inserted into the overflow groove.

[0043] Furthermore, it also includes:

[0044] An exhaust component is used to exhaust the air in the liquid out of the mold;

[0045] The exhaust assembly includes:

[0046] A first exhaust block is fixedly mounted on the movable mold frame;

[0047] A second exhaust block is fixedly mounted on the fixed mold frame;

[0048] A gap cavity is provided between the first exhaust block and the second exhaust block;

[0049] A branch channel connected with the gap cavity is provided on the movable mold core, and one end of the branch channel is connected with the second mold cavity.

[0050] Furthermore, a continuously bent delay groove is provided on the first exhaust block, and a stopper matched with the delay groove is provided on the second exhaust block.

[0051] The beneficial effect of the present application is that it provides a manufacturing mold for a brake valve body which is convenient for preparing products and reduces flushing of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0053] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0054] In the attached picture:

[0055] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0056] Figure 2 It is a structural schematic diagram of a part of the embodiment, mainly showing a material ejecting device;

[0057] Figure 3 is an exploded view of an embodiment;

[0058] Figure 4 yes Figure 3 A magnified view of part A;

[0059] Figure 5 yes Figure 3 A magnified view of part B;

[0060] Figure 6 It is a structural schematic diagram of a part of the embodiment, mainly showing the fixed mold core;

[0061] Figure 7 yes Figure 6 Enlarged view of part C;

[0062] Figure 8 It is a structural schematic diagram of a part of the embodiment, mainly showing a first auxiliary mold;

[0063] Fig. 9 It is a structural schematic diagram of a part of the embodiment, mainly showing the fixed mold core;

[0064] Fig.10 It is a structural schematic diagram of a part of the embodiment, mainly showing the brake valve body and the shape of the injection liquid formed during the preparation process.

[0065] Reference numerals:

[0066] 1. Fixed mold frame; 2. Fixed mold core; 3. Moving mold frame; 4. Moving mold foot; 5. Guide column; 6. Moving mold core; 7. Exhaust assembly; 8. Cushion block; 9. Casting device; 10. Ejector device; 11. First auxiliary mold; 12. Second auxiliary mold; 13. First mold cavity; 14. Second mold cavity; 15. Socket; 16. Gate sleeve; 17. Guide column; 18. Main channel; 19. Trough; 20. First slow flow block; 21. Second slow flow block; 22. First diverter island; 23. Second diverter island; 25. Slope; 2 6. Push plate; 27. Push rod; 28. Reset rod; 29. ​​Overflow groove; 30. First exhaust block; 31. Second exhaust block; 32. Clearance cavity; 33. Branch channel; 34. Delay groove; 35. Block; 36. First fixed frame; 37. Cylinder; 38. Connecting block; 39. First cushion block; 40. First support rod; 41. First cavity; 42. Second fixed frame; 43. Moving block; 44. Guide rod; 45. Second cushion block; 46. Second support rod; 47. Positioning rod; 48. Brake valve body; 49. Injection liquid pattern. DETAILED DESCRIPTION

[0067] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0068] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0069] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0070] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0071] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0072] Reference Figure 1-10 The mold for making a brake valve body comprises a fixed mold frame 1, a fixed mold core 2, a movable mold frame 3, a movable mold foot 4, a guide column 5, a movable mold core 6, an exhaust component 7, a cushion block 8, a pouring device 9, and a ejecting device 10; the movable mold frame 3 moves relative to the fixed mold frame 1, the fixed mold core 2 is fixedly arranged in the fixed mold frame 1, the movable mold foot 4 is fixedly arranged on the movable mold frame 3, the movable mold core 6 is fixedly arranged in the movable mold frame 3, the guide column 5 is fixedly arranged on the movable mold foot 4, and the fixed mold frame 1 and the movable mold frame 3 are provided with a through groove for the guide column 5 to pass through; a first mold cavity 13 for preparing a brake valve body is provided on the fixed mold core 2, and a second mold cavity 14 matched with the first mold cavity 13 is provided on the movable mold core 6. When the fixed mold core 2 abuts against the movable mold core 6, the first mold cavity 13 and the second mold cavity 14 are combined into a complete contour cavity for preparing the brake valve body. There are several pads 8, which are connected to the movable mold frame 3, the fixed mold frame 1 and the movable mold foot 4 by screws, and a plug hole 15 is provided on the pad 8. When the mold needs to be moved, the plug rod of the forklift can be inserted into the plug hole 15 for transportation, which is convenient for moving the mold position. The brake valve body is processed in place on the above mold, and the brake valve body is made in place by die casting, which reduces the processing of the brake valve body, and because the mold guarantees the size and shape of the brake valve body, it has high stability.

[0073] The pouring device 9 includes a sprue bushing 16 and a guide column 17; a sprue is provided through the fixed mold frame 1, the sprue bushing 16 is fixedly provided on the sprue, and the guide column 17 is fixedly provided on the movable mold core 6, and the guide column 17 is located in the sprue. The guide column 17 is a conical column.

[0074] The moving mold core 6 is provided with a main channel 18 connected to the gate, and one end of the main channel 18 is connected to the second mold cavity 14. The fixed mold core 2 is provided with a groove body 19 connected to the first mold cavity 13, and a first slow flow block 20 and a second slow flow block 21 are arranged in the groove body 19, and there is a distance between the first slow flow block 20 and the second slow flow block 21; when the first mold cavity 13 and the second mold cavity 14 are merged, the groove body 19 overlaps with the main channel 18, so that the first slow flow block 20 and the second slow flow block 21 are respectively located in the main channel 18, and the connection between the main channel 18 and the second mold cavity 14 is divided into a first diverter island 22 and a second diverter island 23. Among them, the volume of the first diverter island 22 is greater than the volume of the second diverter island 23, and the first diverter island 22 and the second diverter island 23 are biased to one side of the main channel. The injection liquid is divided from a main channel 18 into a first diversion island 22 and a second diversion island 23 and flows into the second mold cavity 14, thereby increasing the stability of the injection liquid flow, reducing the scouring and deformation of the main channel 18, and improving the qualified rate of shrinkage holes inside the product, improving the stability of product size, and enhancing the structural strength of the product.

[0075] The inner wall of the groove body 19 is recessed in the direction away from one end of the movable mold core 6 to form a slope portion 25. Since the groove body 19 and the main channel 18 overlap, the slope portion 25 is also a part of the main channel 18. That is, when the injection liquid flows into the main channel 18, a recoil structure is formed under the action of the slope portion 25, which increases the recoil force in the main channel 18 and reduces the scouring of the main channel 18, thereby improving the stability of the product die-casting process, reducing the quality cost in the production process, and indirectly improving the safety of the vehicle braking system.

[0076] The ejector device 10 includes a push plate 26, a push rod 27, and a reset rod 28; the push plate 26 is slidably disposed on the movable mold foot 4 and can slide relative to the movable mold foot 4, there are a plurality of push rods 27 and they are fixedly disposed on the push plate 26, the reset rod 28 is fixedly disposed on the push plate 26, and a through hole for inserting the push rod 27 is provided in the second mold cavity 14. By moving the push plate 26, the push rod 27 is inserted into the second mold cavity 14, and then the prepared brake valve body is fixed out of the mold.

[0077] The movable mold core 6 is provided with a plurality of overflow grooves 29 communicating with the second mold cavity 14 , and one end of the ejector pin 27 is inserted into the overflow groove 29 .

[0078] The exhaust assembly 7 includes a first exhaust block 30 and a second exhaust block 31; the first exhaust block 30 is fixed on the movable mold frame 3, and the second exhaust block 31 is fixed on the fixed mold frame 1. The first exhaust block 30 and the second exhaust block 31 are combined to form a gap cavity 32. Among them, a branch channel 33 connected to the gap cavity 32 is opened on the movable mold core 6, and one end of the branch channel 33 is connected to the second mold cavity 14. One end of the ejector pin 27 is inserted into the gap cavity 32.

[0079] The first exhaust block 30 is provided with a continuously bent delay groove 34, and the second exhaust block 31 is provided with a stopper 35 matched with the delay groove 34 to delay the flow speed of the injection liquid and prevent it from flowing out of the gap cavity 32 to the outside.

[0080] The first auxiliary mold 11 and the second auxiliary mold 12 are also included; the first auxiliary mold 11 and the second auxiliary mold 12 are both fixedly arranged on the movable mold frame 3, and the second auxiliary mold 12 is symmetrically arranged. Through the action of the first auxiliary mold 11 and the second auxiliary mold 12, the cavities of the brake valve body are prepared, so that the prepared brake valve body has cavities with various functions such as air inlet and outlet.

[0081] The first auxiliary mold 11 includes a first fixing frame 36, a cylinder 37, a connecting block 38, a first cushion block 39, and a first support rod 40; the first fixing frame 36 is fixed on the movable mold frame 3 by screws, the cylinder 37 is fixed on the first fixing frame 36, the connecting block 38 is fixed on the piston rod of the cylinder 37, the first cushion block 39 is fixed on the connecting block 38, and the movable mold core 6 is provided with a first cavity 41 for the first cushion block 39 to move, and the first cavity 41 is connected to the second mold cavity 14; the first support rod 40 is fixed on one end of the first cushion block 39, and one end of the first support rod 40 is inserted into the second mold cavity 14. The cylinder 37 drives the connecting block 38 to move, and the connecting block 38 drives the first cushion block 39 to move, so that the first support rod 40 moves toward the second mold cavity 14; the first support rod 40 forms the various cavity openings of the brake valve body.

[0082] The second auxiliary mold 12 includes a second fixed frame 42, a moving block 43, a guide rod 44, a second cushion block 45, a second support rod 46, and a positioning rod 47; the second fixed frame 42 is fixedly arranged on the movable mold frame 3, the moving block 43 is slidably arranged on the second fixed frame 42, one end of the guide rod 44 is fixedly connected to the moving block 43, and the other end is movably arranged on the second fixed frame 42, the second cushion block 45 is fixedly arranged on the moving block 43, the second support rod 46 is fixedly arranged on the second cushion block 45, and the positioning rod 47 is penetrated and arranged on the moving block 43, and movably cooperates with the moving block 43, and at the same time, one end of the positioning rod 47 abuts against the movable mold frame 3. The moving block 43 is moved by pushing the guide rod 44, the second support rod 46 is inserted into the second mold cavity 14, and then the positioning rod 47 is inserted into the moving block 43, and one end of the positioning rod 47 abuts against the movable mold frame 3, so that the moving block 43 is fixed.

[0083] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A mold for manufacturing a brake valve body, comprising: Fixed mold frame; A movable mold frame moves relative to the fixed mold frame; A fixed mold core is arranged on the fixed mold frame, and a first mold cavity for preparing a brake valve body is opened on the fixed mold core; A movable mold core is arranged on the movable mold frame, and a second mold cavity matching with the first mold cavity is opened on the movable mold core. When the fixed mold core abuts against the movable mold core, the first mold cavity and the second mold cavity are combined to form a complete contour cavity for preparing a brake valve body; A movable mold foot is arranged on the movable mold frame; Pouring device; Features: The fixed mold frame is provided with a gate through it; the pouring device comprises a gate sleeve arranged on the gate, and a guide column fixedly arranged on the movable mold core, and the guide column is located in the gate; The movable mold core is provided with a main flow channel connected to the gate, and one end of the main flow channel is connected to the second mold cavity; The fixed mold core is provided with a groove body connected with the first mold cavity, and the groove body is provided with a first slow flow block and a second slow flow block, and a gap is provided between the first slow flow block and the second slow flow block; when the first mold cavity and the second mold cavity are merged, the first slow flow block and the second slow flow block are respectively located in the main flow channel, so that the main flow channel and the second mold cavity are connected at the connection point divided into a first diverter island and a second diverter island, the volume of the first diverter island is greater than that of the second diverter island, and the first diverter island and the second diverter island are biased to one side of the main flow channel.

2. The mold for manufacturing the brake valve body according to claim 1, characterized in that: The inner wall of the groove body is recessed in a direction away from one end of the movable mold core to form a slope portion.

3. The mold for manufacturing the brake valve body according to claim 1, characterized in that: Also includes: A first auxiliary mold, used for preparing various cavities of the brake valve body; The first auxiliary mold comprises: A first fixing frame, fixedly mounted on the movable mold frame; A cylinder, fixed on the first fixing frame; A connecting block, fixedly arranged on the piston rod of the cylinder; A first cushion block, fixedly disposed on the connecting block; A first support rod, fixedly mounted on the first cushion block; The first support rod is driven by the cylinder to be inserted into the second mold cavity.

4. The mold for manufacturing the brake valve body according to claim 1, characterized in that: Also includes: The second auxiliary molds are two symmetrically arranged at both ends of the movable mold frame; The second auxiliary mold comprises: A second fixing frame, fixedly mounted on the movable mold frame; A moving block, slidably disposed on the second fixing frame; A guide rod, one end of which is fixedly connected to the moving block, and the other end of which is movably connected to the second fixing frame; A second cushion block is fixedly mounted on the moving block; A second support rod, fixedly mounted on the second cushion block, and one end of which is inserted into the second mold cavity; A positioning rod is provided through the moving block, and one end of the positioning rod is in contact with the moving mold frame.

5. The mold for manufacturing the brake valve body according to claim 1, characterized in that: Also includes: A material ejecting device, used to eject the prepared brake valve body out of the mold; The ejecting device comprises: A push plate, slidably disposed on the movable mold foot; A reset rod, fixed on the push plate; A plurality of push rods fixed on the push plate; One end of the ejector pin is inserted into the second mold cavity.

6. The mold for manufacturing the brake valve body according to claim 5, characterized in that: The movable mold core is provided with a plurality of overflow grooves which are connected with the second mold cavity, and one end of the ejector pin is inserted into the overflow groove.

7. The mold for manufacturing the brake valve body according to claim 1, characterized in that: Also includes: An exhaust component is used to exhaust the air in the liquid out of the mold; The exhaust assembly comprises: A first exhaust block is fixedly mounted on the movable mold frame; A second exhaust block is fixedly mounted on the fixed mold frame; A gap cavity is provided between the first exhaust block and the second exhaust block; The movable mold core is provided with a branch channel connected to the gap cavity, and one end of the branch channel is connected to the second mold cavity.

8. The mold for manufacturing the brake valve body according to claim 7, characterized in that: The first exhaust block is provided with a continuously bent delay groove, and the second exhaust block is provided with a stopper matched with the delay groove.

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