A wax injection mold equipped with a flow channel switch

Abstract

This utility model relates to a wax injection mold with a flow channel switch, comprising an upper mold core and a lower mold core arranged corresponding to each other. Multiple wax injection holes are provided between the upper and lower mold cores, each corresponding to a mold cavity. The wax injection holes and mold cavities are connected by flow channels. The lower mold core is equipped with a flow channel switch, which opens and closes the flow channel by rotating the switch. The flow channel switch has a mounting positioning hole in the middle, an upward-protruding flow-blocking protrusion at one end, and a downward-recessed flow-guiding groove at the other end. The flow-blocking protrusion and the flow-guiding groove are symmetrically arranged around the mounting positioning hole. In use, rotating the flow channel switch on the flow channel corresponding to the wax injection hole effectively closes the flow channel, allowing the mold to be matched with multiple wax injection machines, making its application more flexible and convenient. Cavities that do not require filling can also be closed, avoiding the production of redundant parts and unnecessary waste. This improves production efficiency and effectively reduces production costs.

Description

Technical Field

[0001] This utility model relates to the technical field of mechanical molds, specifically a wax injection mold equipped with a flow channel switch. Background Technology

[0002] In existing technologies, the nozzle hole position in wax injection molds is generally fixed, but the nozzle positions differ between different wax injection machines. This results in the mold being unable to match multiple wax injection machines simultaneously. Furthermore, in multi-cavity molds, sometimes only one cavity part is needed during production, but the mold filling process simultaneously fills the other cavities, leading to the discarding of the parts from the remaining cavities and causing unnecessary waste.

[0003] In existing structures, opening and closing the mold flow channel is generally cumbersome, the operation remains unchanged, and multiple inserts are required to achieve the desired result, thus reducing production efficiency.

[0004] Therefore, there is an urgent need in the market for a wax injection mold that can easily open and close the flow channel, in order to improve efficiency and reduce production costs. Summary of the Invention

[0005] The purpose of this invention is to provide an improved wax injection mold with a flow channel switch. Through structural improvements, the flow channel switch facilitates the control of the number of filling cavities in the mold, thereby improving efficiency and reducing waste.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a wax injection mold with a flow channel switch, comprising an upper mold core and a lower mold core arranged corresponding to each other, characterized in that: multiple wax injection holes are provided between the upper and lower mold cores, each wax injection hole corresponds to a mold cavity, the wax injection holes and the mold cavity are connected by a flow channel, the lower mold core is provided with a switch setting groove that cooperates with the flow channel, a rotatable flow channel switch is provided in the switch setting groove, and the flow channel is opened and closed by rotating the flow channel switch; the flow channel switch is provided with a mounting positioning hole in the middle, a flow-blocking protrusion is provided at one end, and a flow-guiding groove is provided at the other end, the flow-blocking protrusion and the flow-guiding groove are symmetrically arranged with the mounting positioning hole as the center.

[0007] Preferably, the flow channel switch and the lower mold core are in clearance fit, the flow channel switch is set perpendicular to the flow channel, and the width of the flow channel switch is greater than the diameter of the flow channel.

[0008] Furthermore, the upper mold core is provided with a clearance groove, the position of which corresponds to the position of the flow-blocking protrusion when the flow channel is closed; when the flow channel is closed, the clearance groove and the flow-blocking protrusion form a clearance fit.

[0009] Furthermore, the shape of the flow-blocking bump is the same as that of the flow-guiding channel, and the size is consistent. The flow-blocking bump is semi-circular, and an identification platform is provided on the outer side of both the flow-blocking bump and the flow-guiding channel. Switch markings are provided on the platforms.

[0010] Furthermore, a sealing layer is provided on the top of the flow guide protrusion, and upward-protruding sealing plates are provided on both sides of the flow guide groove. The thickness of the sealing plates is 0.05-0.1mm and the height is 0.1-0.3mm.

[0011] Furthermore, the clearance value of the clearance fit is 0.01-0.06mm, and the ratio of the width of the flow channel switch to the diameter of the flow channel is 1:0.72-0.93.

[0012] Furthermore, the mounting positioning hole is provided with internal threads, and the flow channel switch is fixedly connected to the lower mold core by internal hexagon screws.

[0013] Furthermore, a fixed platform is provided between the flow-blocking protrusion and the flow-guiding channel, with the height of the fixed platform being 0.05-0.15mm higher than the marking platform.

[0014] Compared with the prior art, the technical solution of this utility model not only improves the overall technical solution, but also includes many detailed improvements. Specifically, it has the following beneficial effects:

[0015] 1. The improved solution described in this utility model has multiple wax injection holes between the upper and lower mold cores, each wax injection hole corresponding to a mold cavity. The wax injection holes and mold cavities are connected by flow channels. The lower mold core has a switch setting groove that cooperates with the flow channel. A rotatable flow channel switch is provided in the switch setting groove. By rotating the flow channel switch, the flow channel is opened and closed. By rotating the flow channel switch, the opening and closing of the nozzle hole and the flow channel of each cavity can be directly controlled, and each nozzle hole and each mold cavity can be precisely controlled. This allows the mold to cooperate with multiple wax injection machines at the same time, improving production efficiency. At the same time, the flow channels of unnecessary mold cavities can be closed to avoid unnecessary waste and save production costs.

[0016] 2. In the technical solution of this utility model, the flow channel switch is provided with a mounting and positioning hole in the middle, a flow-blocking protrusion at one end, and a flow-guiding groove at the other end. The flow-blocking protrusion and the flow-guiding groove are symmetrically arranged with the mounting and positioning hole as the center. The flow channel switch can easily open and close the flow channel by rotating 180 degrees. It is easy to operate, has a precise structure, and facilitates precise control of various details in the mold, so as to achieve the purpose of rational and efficient arrangement of process requirements and expand the applicable scenarios of the mold.

[0017] 3. In the structure of this utility model, a sealing layer is provided on the top of the flow guide protrusion, and upward protruding sealing plates are provided on both sides of the flow guide groove. The thickness of the sealing plates is 0.05-0.1mm and the height is 0.1-0.3mm, which makes the closing effect of the flow channel switch good and achieves the purpose of precise control. At the same time, the flow channel switch structure is integrated and is not easy to lose.

[0018] 4. This utility model has a simple structure, reasonable layout, is easy to use, has good precise positioning effect, improves efficiency, saves production costs, and is easy to promote and utilize. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 for Figure 1 Schematic diagram of the AA direction.

[0021] Figure 3 for Figure 1 Diagram of the BB direction.

[0022] Figure 4 This is a schematic diagram of the flow channel switch of this utility model.

[0023] Figure 5 This is another structural schematic diagram of the flow channel switch of this utility model.

[0024] Figure 6 This is a schematic diagram of the usage state of this utility model.

[0025] Figure label:

[0026] 1 Upper mold core, 2 Lower mold core, 3 Wax injection hole, 4 Mold cavity, 5 Runner, 6 Runner switch, 7 Hex socket screw;

[0027] 21. Void trough;

[0028] 61 Mounting positioning hole, 62 Flow-blocking protrusion, 63 Flow guide groove;

[0029] 621 Sealing layer. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] This utility model provides a wax injection mold with a flow channel switch, comprising an upper mold core 1 and a lower mold core 2 arranged corresponding to each other, see details. Figure 1 The difference between this and the existing technology is that: multiple wax injection holes 3 are provided between the upper and lower mold cores, each wax injection hole corresponds to a mold cavity 4, the wax injection holes and the mold cavity are connected by a flow channel 5, the lower mold core is provided with a switch setting groove that cooperates with the flow channel, the switch setting groove is set perpendicular to the flow channel, and a rotatable flow channel switch 6 is provided in the switch setting groove. By rotating the flow channel switch 180 degrees, the flow channel is opened and closed; the flow channel switch 6 is provided with a mounting positioning hole 61 in the middle, a flow-blocking protrusion 62 protruding upward at one end, and a flow-guiding groove 63 recessed downward at the other end. The flow-blocking protrusion and the flow-guiding groove are symmetrically arranged with the mounting positioning hole as the center.

[0032] During use, after the wax injection mold is matched with the wax injection machine, unnecessary wax injection holes can be closed. This is achieved by rotating the flow channel switch on the corresponding flow channel of the wax injection hole, effectively closing the flow channel. This allows the mold to be matched with multiple wax injection machines, making its application more flexible and convenient. Simultaneously, cavities that do not require filling can also be closed by rotating the flow channel switch, preventing the production of excess parts and avoiding unnecessary waste. This improves production efficiency and effectively reduces production costs.

[0033] Example 1

[0034] This embodiment describes a wax injection mold with a flow channel switch, including an upper mold core 1 and a lower mold core 2 arranged corresponding to each other. Multiple wax injection holes 3 are provided between the upper and lower mold cores. The wax injection holes are arranged around the upper and lower mold cores and are funnel-shaped. Each wax injection hole corresponds to a mold cavity 4. The wax injection holes and mold cavities are connected by a flow channel 5. The lower mold core is provided with a switch setting groove that cooperates with the flow channel. A rotatable flow channel switch 6 is provided in the switch setting groove. By rotating the flow channel switch, the flow channel is opened and closed, thereby selectively opening and closing the corresponding wax injection hole, and effectively opening and closing the corresponding mold cavity, so that the mold can be used in more occasions.

[0035] Specifically, the flow channel switch here has a mounting and positioning hole 61 in the middle, an upward-protruding flow-blocking protrusion 62 at one end, and a downward-recessed flow-guiding groove 63 at the other end. The flow-blocking protrusion and the flow-guiding groove are symmetrically arranged with the mounting and positioning hole as the center. By rotating the flow channel switch 180 degrees, the positions of the flow-blocking protrusion and the flow-guiding groove can be switched. When the flow-blocking protrusion engages with the flow channel, the flow channel switch is in the closed state (see...). Figure 3 When the guide channel and the flow channel are engaged, the flow channel switch is in the open state (see...). Figure 2 ).

[0036] In this embodiment, the flow channel switch and the lower mold core are in a clearance fit. The flow channel switch is perpendicular to the flow channel, and the width of the flow channel switch is greater than the diameter of the flow channel, which facilitates better control of the flow channel and ensures the accuracy of opening and closing. Furthermore, the clearance value of the clearance fit is 0.01-0.06mm, and the ratio of the width of the flow channel switch to the diameter of the flow channel is 1:0.72-0.93. These dimensions enable the fit to achieve the best effect, allowing for precise and efficient control of the flow channel.

[0037] Furthermore, the upper mold core is provided with a clearance groove 21, the position of which corresponds to the position of the flow-blocking protrusion when the flow channel is closed; when the flow channel is closed, the clearance groove and the flow-blocking protrusion form a clearance fit. The shape and size of the flow-blocking protrusion are the same as those of the flow-guiding channel, and the flow-blocking protrusion is semi-circular. An identification platform is provided on the outer side of both the flow-blocking protrusion and the flow-guiding channel, and a switch mark is provided on the platform to prevent operators from making mistakes when rotating the flow channel switch, thus ensuring production efficiency.

[0038] Meanwhile, a sealing layer 621 is provided on the top of the flow guide protrusion, and upward-protruding sealing plates are provided on both sides of the flow guide groove. The thickness of the sealing plates is 0.05-0.1mm, and the height is 0.1-0.3mm. The above structure can ensure the tightness of the flow guide protrusion when sealing the flow channel and prevent wax from overflowing during wax injection.

[0039] Furthermore, the mounting and positioning holes are equipped with internal threads, and the flow channel switch is fixedly connected to the lower mold core via hexagon socket screws 7. A fixing platform is provided between the flow-blocking protrusion and the flow guide channel, and the height of the fixing platform is 0.05-0.15mm higher than the marking platform.

[0040] Example 2

[0041] This embodiment describes a wax injection mold with a flow channel switch, comprising an upper mold core and a lower mold core arranged corresponding to each other. Four to six wax injection holes are provided between the upper and lower mold cores. These wax injection holes are arranged around the perimeter of the mold, with each wax injection hole corresponding to a mold cavity. The wax injection holes and mold cavities are connected by a flow channel. The lower mold core has a switch setting groove that mates with the flow channel. The flow channel and the switch setting groove are arranged perpendicularly. A rotatable flow channel switch is provided in the switch setting groove. By rotating the flow channel switch, the flow channel is opened and closed, thereby effectively controlling the wax injection hole and mold cavity corresponding to the flow channel. This makes the entire wax injection mold flexible and versatile, suitable for various occasions.

[0042] Furthermore, the flow channel switch has a mounting and positioning hole in the middle to facilitate positioning of the flow channel switch and the lower mold core. One end of the flow channel switch has an upward-protruding flow-blocking bump, and the other end has a downward-recessed flow-guiding groove. The flow-blocking bump and the flow-guiding groove are symmetrically arranged with the mounting and positioning hole as the center. In this way, when the flow channel switch is rotated 180 degrees, the corresponding flow channel can be opened and closed.

[0043] Specifically, when multi-cavity production is required, multiple flow channel switches can be opened simultaneously. The flow channel switches for the parts to be produced are installed in the open state, forming circular through holes, while the flow channel switches for the parts not to be produced are installed in the closed state. The entire structure is easy to operate, facilitating precise control of various details in the mold, achieving the goal of rationally and efficiently arranging process requirements, and expanding the applicable scenarios of the mold.

[0044] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications or substitutions should be considered within the protection scope of the present invention.

Claims

1. A wax injection mold equipped with a flow channel switch, comprising an upper mold core and a lower mold core arranged corresponding to each other, characterized in that: Multiple wax injection holes are provided between the upper and lower mold cores, each corresponding to a mold cavity. The wax injection holes and mold cavities are connected by a flow channel. The lower mold core is provided with a switch setting groove that cooperates with the flow channel. A rotatable flow channel switch is provided in the switch setting groove. The flow channel is opened and closed by rotating the flow channel switch. The flow channel switch is provided with a mounting positioning hole in the middle, with an upward-protruding flow-blocking protrusion at one end and a downward-recessed flow-guiding groove at the other end. The flow-blocking protrusion and the flow-guiding groove are symmetrically arranged with the mounting positioning hole as the center.

2. A wax injection mold with a flow channel switch according to claim 1, characterized in that: The flow channel switch and the lower mold core are fitted with a clearance. The flow channel switch is set perpendicular to the flow channel, and the width of the flow channel switch is greater than the diameter of the flow channel.

3. A wax injection mold with a flow channel switch according to claim 1, characterized in that: The upper mold core is provided with a clearance groove, and the position of the clearance groove corresponds to the position of the flow-blocking protrusion when the flow channel is closed; when the flow channel is closed, the clearance groove and the flow-blocking protrusion form a clearance fit.

4. A wax injection mold with a flow channel switch according to claim 1, characterized in that: The shape of the flow-blocking bump is the same as that of the flow-guiding channel, and the size is the same. The flow-blocking bump is semi-circular. An identification platform is provided on the outside of the flow-blocking bump and the flow-guiding channel, and a switch mark is provided on the platform.

5. A wax injection mold with a flow channel switch according to claim 1, characterized in that: The top of the flow guide protrusion is provided with a sealing layer, and the two sides of the flow guide groove are provided with upward protruding sealing plates with a thickness of 0.05-0.1mm and a height of 0.1-0.3mm.

6. A wax injection mold with a flow channel switch according to claim 2, characterized in that: The clearance value for the clearance fit is 0.01-0.06mm, and the ratio of the width of the flow channel switch to the diameter of the flow channel is 1:0.72-0.

93.

7. A wax injection mold with a flow channel switch according to claim 1, characterized in that: The mounting positioning hole has an internal thread, and the flow channel switch is fixedly connected to the lower mold core by an internal hexagon screw.

8. A wax injection mold with a flow channel switch according to claim 4, characterized in that: A fixed platform is provided between the flow-blocking protrusion and the flow-guiding channel. The height of the fixed platform is 0.05-0.15mm higher than that of the marking platform.

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