Rapid forming injection mold

Abstract

The utility model relates to the technical field of injection molds, and discloses a rapid prototyping injection mold which comprises a bottom plate, an upper mold base is arranged above the bottom plate, a lower mold plate is mounted on the upper surface of the bottom plate, an upper mold plate is mounted at the bottom of the upper mold base, and an injection molding hole is formed in the upper surface of the upper mold base; the mounting frame is arranged on the surface of the upper mold plate, a driving machine is mounted on the inner wall of the mounting frame, and a rotating rod is coaxially mounted on a rotor of the driving machine; the eccentric wheel is arranged on the surface of the rotating rod. The additionally arranged driving machine can finally enable the injection molding materials to vibrate, so that the materials can be uniformly spread into the inner cavities of the upper mold plate and the lower mold plate; cooling liquid can be injected into the cooling channel through the cooling water connector, it can be guaranteed that the cooling liquid can effectively cool materials, the cooling efficiency of the materials is improved, and the material forming efficiency can be improved through cooperation with the vibration block.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a rapid molding injection mold. Background Art

[0002] Injection molds are molds used for plastic injection molding, which can form plastic products with complex shapes, high dimensional accuracy or with inserts in one go.

[0003] Announcement CN103624936B (injection mold), including a movable mold, a fixed mold and a slider, the movable mold is provided with a movable mold insert; the movable mold and the fixed mold are provided with notches, after the molds are closed, the movable mold and the fixed mold form a slider channel; the movable mold insert is provided with a groove; the slider slides left and right in the slider channel; the slider passes through the groove;

[0004] The groove on the movable mold insert mentioned above avoids the slider from damaging the movable mold insert. It reduces the risk of damage to the injection mold, saves production costs, and reduces the difficulty of mold production. Common injection molds generally inject molten material between the upper mold and the lower mold through the injection hole of the existing injection mold, and the material can be molded after cooling. However, when the molten material is injected into the mold, the molten material will slowly spread to the inner cavity of the upper mold and the lower mold, and the edges of the upper mold and the lower mold are difficult to fit tightly with the molten material, resulting in the molten material not being evenly distributed in the inner cavity of the upper mold and the lower mold. It takes time to wait for the molten material to spread to various parts of the inner cavity of the upper mold and the lower mold. At the same time, when the coolant cools the mold, the coolant absorbs the heat emitted by the material, causing the temperature of the coolant to rise rapidly, and the material cannot be effectively cooled quickly. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a rapid molding injection mold to solve the problem proposed in the above background technology that the molten material cannot be evenly distributed in the inner cavity of the upper template and the lower template, and it takes time to wait for the molten material to spread to various parts of the inner cavity of the upper template and the lower template. At the same time, when the coolant cools the mold, the coolant absorbs the heat emitted by the material, causing the temperature of the coolant to rise rapidly, and the material cannot be effectively cooled quickly.

[0007] (II) Technical solution

[0008] To achieve the above object, the present utility model provides the following technical solutions: An injection mold for rapid prototyping, comprising: a bottom plate, an upper mold base is provided above the bottom plate, a lower template is installed on the upper surface of the bottom plate, an upper template is installed at the bottom of the upper mold base, and an injection hole is provided on the upper surface of the upper mold base; a mounting frame is disposed on the surface of the upper template, a driving machine is installed on the inner wall of the mounting frame, and a rotating rod is coaxially installed on the rotor of the driving machine; an eccentric wheel is disposed on the surface of the rotating rod, a mounting plate is provided on the right side of the inner cavity of the mounting frame, and a vibration block is installed on the surface of the mounting plate; a cooling water joint is disposed on the surface of the upper template, a cooling channel is provided in the middle of the side wall of the upper template, the cooling channel is designed in a loop shape, and a drain pipe is installed on the left side of the upper template.

[0009] Preferably, the upper mold base and the upper template are connected by pins to limit the upper template, and the lower template and the bottom plate are connected by a connecting member to limit the lower template, so that the upper template and the lower template can be stably docked.

[0010] Preferably, a sealing cover is provided at the water outlet of the drain pipe, and the sealing cover is screwed onto the surface of the drain pipe. The drain pipe can be sealed by the sealing cover. When the coolant in the cooling channel is filled, the sealing cover can be opened to drain the coolant in the cooling channel through the drain pipe.

[0011] Preferably, a plurality of vibration blocks and eccentric wheels are provided. The plurality of vibration blocks are evenly distributed on the surface of the mounting plate, expanding the impact area of the vibration blocks. The plurality of eccentric wheels are evenly distributed on the surface of the rotating rod, so that the eccentric wheels can stably impact the mounting plate.

[0012] Preferably, a return spring is installed on the surface of the mounting plate, and the return spring is connected to the surface of the upper template. The mounting plate can be reset by the return spring, so that when the eccentric wheel separates from the surface of the mounting plate, the mounting plate can be squeezed by the return spring to contact the surface of the eccentric wheel again. The eccentric wheel can drive the mounting plate to move reciprocally, thereby driving the vibration block to continuously impact the upper template.

[0013] Preferably, limiting blocks are installed on both sides of the mounting plate, limiting grooves are provided on both inner side walls of the mounting frame, and the limiting blocks are embedded in the inner cavity of the limiting grooves to limit the mounting plate, so that the mounting plate can move stably;

[0014] Preferably, the mounting frame is designed in a U shape, the side plate of the mounting frame is connected to the upper template, and the driving machine is installed on the surface of the right inner wall of the mounting frame to hide the driving machine and improve the aesthetics of the device.

[0015] Beneficial effects

[0016] Compared with the prior art, the utility model provides a rapid prototyping injection mold, which has the following beneficial effects:

[0017] 1. The rapid prototyping injection mold is equipped with a driving mechanism that can drive the rotating rod to rotate, thereby driving the eccentric wheel to rotate. When the eccentric wheel rotates, it will squeeze the mounting plate, thereby driving the vibration block to hit the surface of the upper template. The upper template will transmit the vibration to the surface of the lower template. When the injection material is vibrated, it can evenly spread to the inner cavity of the upper template and the lower template. The vibration can also shorten the injection molding time, improve production efficiency, and reduce the amount of injected plastic;

[0018] 2. The rapid prototyping injection mold can inject coolant into the cooling channel through the cooling water joint. When the temperature of the coolant in the cooling channel rises, it will be discharged through the drain pipe, and the coolant with a lower stability will continue to be injected into the cooling channel through the cooling water joint, which can ensure that the coolant can effectively cool the material, improve the cooling efficiency of the material, and cooperate with the vibration block to speed up the efficiency of material molding. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a structural schematic diagram of the upper die seat of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the lower template and the upper template of the utility model;

[0022] Figure 4 It is an exploded stereogram of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the mounting frame of the utility model;

[0024] Figure 6 It is a schematic diagram of the cross-sectional structure of the upper template of the utility model.

[0025] In the figure: 1, bottom plate; 2, upper mold base; 3, lower mold plate; 4, upper mold plate; 41, mounting frame; 5, injection hole; 6, driving machine; 7, rotating rod; 8, eccentric wheel; 9, mounting plate; 10, vibration block; 11, cooling water joint; 12, cooling channel; 13, drain pipe; 14, sealing cover; 15, reset spring; 16, limit block; 17, limit groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides a technical solution, a rapid prototyping injection mold, please refer to Figure 1 , including a bottom plate 1, an upper die seat 2 is provided above the bottom plate 1, see Figure 3 , the upper surface of the bottom plate 1 is mounted with a lower template 3, see Figure 2 , an upper mold plate 4 is installed at the bottom of the upper mold base 2, and an injection hole 5 is opened on the upper surface of the upper mold base 2;

[0028] See also Figure 4 , the mounting frame 41 is arranged on the surface of the upper template 4, see Figure 5 The inner wall of the mounting frame 41 is mounted with a driving machine 6, and the rotor of the driving machine 6 is coaxially mounted with a rotating rod 7;

[0029] The eccentric wheel 8 is arranged on the surface of the rotating rod 7. A mounting plate 9 is arranged on the right side of the inner cavity of the mounting frame 41. A vibration block 10 is installed on the surface of the mounting plate 9.

[0030] See also Figure 6 A cooling water joint 11 is provided on the surface of the upper template 4. A cooling channel 12 is provided in the middle of the side wall of the upper template 4. The cooling channel 12 is of a round-shaped design. A drain pipe 13 is installed on the left side of the upper template 4.

[0031] Starting the driving machine 6 can drive the rotating rod 7 to rotate, thereby driving the eccentric wheel 8 to rotate. When the eccentric wheel 8 rotates, it will squeeze the mounting plate 9, thereby driving the vibration block 10 to impact the surface of the upper template 4. The upper template 4 will transfer the vibration to the surface of the lower template 3. When the injection molding material is vibrated, it can evenly spread to the inner cavity of the upper template 4 and the lower template 3. The vibration can also shorten the injection molding time, improve production efficiency, and reduce the amount of injected plastic;

[0032] At the same time, the coolant can be injected into the cooling channel 12 through the cooling water joint 11. When the temperature of the coolant in the cooling channel 12 increases, it will be discharged through the drain pipe 13, and the coolant with a lower stability will continue to be injected into the cooling channel 12 through the cooling water joint 11, which can ensure that the coolant can effectively cool the material, improve the cooling efficiency of the material, and cooperate with the vibration block 10 to accelerate the efficiency of material molding.

[0033] See also Figure 4, the upper die holder 2 and the upper template 4 are connected by pins to limit the upper template 4, and the lower template 3 and the bottom plate 1 are connected by connectors to limit the lower template 3, so that the upper template 4 and the lower template 3 can be stably butted.

[0034] The outlet of the drain pipe 13 is provided with a sealing cover 14. The sealing cover 14 is screwed on the surface of the drain pipe 13. The drain pipe 13 can be sealed through the sealing cover 14. When the coolant in the cooling channel 12 is filled, the sealing cover 14 can be opened to drain the coolant in the cooling channel 12 through the drain pipe 13.

[0035] Please refer to Figure 5 , the number of the vibration blocks 10 and the eccentric wheels 8 is 3-4. The vibration blocks 10 are evenly arranged on the surface of the mounting plate 9, expanding the impact area of the vibration blocks 10. The eccentric wheels 8 are evenly arranged on the surface of the rotating rod 7, so that the eccentric wheels 8 can stably impact the mounting plate 9.

[0036] A plurality of reset springs 15 are evenly installed on the surface of the mounting plate 9. The reset springs 15 are connected to the surface of the upper template 4. The mounting plate 9 can be reset through the reset springs 15. When the eccentric wheel 8 separates from the surface of the mounting plate 9, the mounting plate 9 can be squeezed by the reset springs 15 to contact the surface of the eccentric wheel 8 again. The eccentric wheel 8 can drive the mounting plate 9 to move reciprocally, so as to drive the vibration blocks 10 to continuously impact the upper template 4.

[0037] Limit blocks 16 are installed on both sides of the mounting plate 9. Limit grooves 17 are opened on the inner walls of both sides of the mounting frame 41. The limit blocks 16 are embedded in the inner cavities of the limit grooves 17 to limit the mounting plate 9, so that the mounting plate 9 can move stably.

[0038] The mounting frame 41 is designed in a U shape. The side plate of the mounting frame 41 is connected to the upper template 4. The driving machine 6 is installed on the surface of the right inner wall of the mounting frame 41 to hide the driving machine 6 and improve the aesthetics of the device.

[0039] The device first connects the upper template 4 and the lower template 3 tightly, injects the injection material between the upper template 4 and the lower template 3 through the injection hole 5, and then starts the driving machine 6 to drive the rotating rod 7 to rotate, thereby driving the eccentric wheel 8 to rotate. When the eccentric wheel 8 rotates, it will squeeze the mounting plate 9, and then drive the vibration block 10 to impact the surface of the upper template 4. The upper template 4 will transmit the vibration to the surface of the lower template 3. When the injection material is vibrated, it can evenly spread to the inner cavity of the upper template 4 and the lower template 3. The vibration can also shorten the injection molding time, improve production efficiency, and reduce the amount of injected plastic. Then The coolant can be injected into the cooling channel 12 through the cooling water joint 11, and the drain pipe 13 can be sealed through the sealing cover 14. When the coolant in the cooling channel 12 is filled, the sealing cover 14 can be opened to discharge the coolant in the cooling channel 12 through the drain pipe 13. When the temperature of the coolant in the cooling channel 12 increases, it will be discharged through the drain pipe 13, and the coolant with low stability will continue to be injected into the cooling channel 12 through the cooling water joint 11, which can ensure that the coolant can effectively cool the material, improve the cooling efficiency of the material, and cooperate with the vibration block 10 to accelerate the efficiency of material molding.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid prototyping injection mold, comprising a base plate, an upper mold base is provided above the base plate, and a lower mold plate is installed on the upper surface of the base plate, characterized in that: The bottom of the upper die base is installed with an upper template, and an injection hole is opened on the upper surface of the upper die base; an installation frame is arranged on the surface of the upper template, a driving machine is installed on the inner wall of the installation frame, and a rotating rod is coaxially installed on the rotor of the driving machine; an eccentric wheel is arranged on the surface of the rotating rod, an installation plate is arranged on the right side of the inner cavity of the installation frame, and a vibration block is installed on the surface of the installation plate; a cooling water joint is arranged on the surface of the upper template, a cooling channel is opened in the middle of the side wall of the upper template, the cooling channel is designed in a loop shape, and a drain pipe is installed on the left side of the upper template.

2. A rapid prototyping injection mold according to claim 1, characterized in that: The upper die base and the upper template are connected by pins, and the lower template and the bottom plate are connected by connectors.

3. A rapid prototyping injection mold according to claim 1, characterized in that: A sealing cover is arranged at the water outlet of the drain pipe, and the sealing cover is screwed on the surface of the drain pipe.

4. A rapid prototyping injection mold according to claim 1, characterized in that: A plurality of the vibration blocks and the eccentric wheels are provided, the plurality of vibration blocks are evenly distributed on the surface of the installation plate, and the plurality of eccentric wheels are evenly distributed on the surface of the rotating rod.

5. A rapid prototyping injection mold according to claim 1, characterized in that: A return spring is installed on the surface of the installation plate, and the return spring is connected to the surface of the upper template.

6. A rapid prototyping injection mold according to claim 1, characterized in that: Limit blocks are installed on both sides of the installation plate, limit grooves are opened on both inner side walls of the installation frame, and the limit blocks are all embedded in the inner cavities of the limit grooves.

7. A rapid prototyping injection mold according to claim 1, characterized in that: The installation frame is designed in a U shape, the side plate of the installation frame is connected to the upper template, and the driving machine is installed on the surface of the right inner wall of the installation frame.

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