Injection mold

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold which comprises a base, a front mold, a rear mold and two first sliding blocks, and the two first sliding blocks are arranged on the base in a sliding mode and can be close to or away from each other; the rear mold is arranged on the base, the front mold can move up and down relative to the rear mold, and an injection molding cavity capable of forming a workpiece can be defined by the front mold, the rear mold and the two first sliding blocks; at least one first sliding block is provided with a submersible type runner, the submersible type runner is communicated with a runner opening of the injection molding cavity and is over against a space for forming a mounting position in the injection molding cavity, and the front mold is provided with a glue inlet capable of being communicated with the submersible type runner. A workpiece can be formed in a submersible glue feeding mode, the glue opening trace is small, and the glue opening trace can be located at the mounting position due to the fact that the runner opening of the submersible runner right faces the space for forming the mounting position in the injection molding cavity, the glue opening trace can be hidden after the supporting foot pad is mounted in the later period, and attractiveness is improved.

Description

[0001] This application is based on a divisional application with application date of June 15, 2023, application number 202321546317.6 and name “Injection Mold”. Technical Field

[0002] The present disclosure relates to the field of mold technology, and in particular to an injection mold. Background Art

[0003] Injection molds are tools for producing plastic products and also tools for giving plastic products complete structures and precise dimensions. Specifically, it refers to injecting heated and molten material into the mold cavity under high pressure, and then cooling and solidifying to obtain a molded product.

[0004] At present, for the workpieces of audio products produced by injection molding, the glue entry point is on the appearance surface of the workpiece, which is prone to produce glue marks such as air marks and imprints, affecting the aesthetics of the workpiece. Utility Model Content

[0005] In order to solve the above technical problems, the present disclosure provides an injection mold, which can improve the glue mark and enhance the aesthetics of the workpiece.

[0006] The present disclosure provides an injection mold, which is suitable for injection molding a workpiece, wherein the workpiece has an installation position for installing a support foot pad, and the injection mold comprises a base, a front mold, a rear mold and a first slider, wherein two first sliders are provided, and the two first sliders are slidably arranged on the base and can approach or move away from each other; the rear mold is arranged on the base, the front mold can move up and down relative to the rear mold, and an injection cavity for molding the workpiece can be formed between the front mold, the rear mold and the two first sliders;

[0007] At least one of the first sliders is provided with a submerged flow channel, the flow channel opening of the submerged flow channel connected to the injection cavity is opposite to the space forming the installation position in the injection cavity, and the front mold is provided with a glue inlet that can be connected to the submerged flow channel.

[0008] Optionally, the injection mold further includes two second sliders, which are slidably disposed on the base and can move closer to or farther away from each other, and the injection cavity can be formed between the front mold, the rear mold, the two first sliders and the two second sliders.

[0009] Optionally, the injection mold further includes an auxiliary component, each of the first sliders is correspondingly provided with the auxiliary component, and a guide hole is opened on the first slider;

[0010] The auxiliary component includes a guide column and a first elastic member, one end of the guide column extends into the guide hole, and the other end is relatively fixed to the stationary part of the injection mold. The first elastic member is sleeved on the guide column, and one end is connected to the guide column, and the other end is connected to the first slider. When the two first sliders are close to each other, the first elastic member is stretched.

[0011] Optionally, the first sliding block is further provided with a top glue hole connected to the submersible flow channel;

[0012] The injection mold also includes an ejector assembly, which includes a driven ejector pin and a second elastic member. The driven ejector pin and the second elastic member are both arranged in the ejector hole. One end of the second elastic member abuts against the first slider, and the other end abuts against the driven ejector pin. When the driven ejector pin is pressurized, it can compress the second elastic member and extend into the submersible flow channel.

[0013] Optionally, the ejector assembly further includes a limit block disposed in the ejector hole, the limit block is located below the ejector pin, a through hole is formed on the limit block, and the driven ejector pin abuts against the limit block in a natural state.

[0014] Optionally, an ejector hole is provided on the rear mold or the base;

[0015] The injection mold further includes a driving member and an active ejector pin, wherein the active ejector pin is disposed in the ejector pin hole, and the driving member is configured to drive the active ejector pin to move up and down in the ejector pin hole; when the ejector pin hole is aligned with the through hole, the active ejector pin can pass through the through hole to drive the driven ejector pin to move upward.

[0016] Optionally, the injection mold further comprises a first oblique guide post connected to the front mold, and the first sliding block is provided with a first oblique guide post hole for the first oblique guide post to extend into;

[0017] When the front mold moves downward relative to the rear mold, the first inclined guide pillar is driven to move downward so that the two first sliding blocks move toward each other.

[0018] Optionally, each of the first sliding blocks has a first inclined surface on a side facing away from another first sliding block;

[0019] The injection mold further includes a limiting member, each of the first sliding blocks is correspondingly provided with the limiting member, the limiting member has a second inclined surface that can move along the first inclined surface, and the limiting member is connected to the front mold;

[0020] When the front mold moves downward relative to the rear mold, the limiting member is driven to move downward so that the second inclined surface moves downward along the first inclined surface.

[0021] Optionally, a wear-resistant block is provided on a side of each of the first sliding blocks facing away from another first sliding block, and the wear-resistant block is provided with the first inclined surface.

[0022] Optionally, one of the front mold and the first sliding block is provided with a positioning groove, and the other is provided with a positioning protrusion, and the positioning protrusion can be inserted into the positioning groove.

[0023] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0024] By setting a first slider, and at least one of the first sliders is provided with a submersible flow channel, and a glue inlet connected to the submersible flow channel is provided on the front mold, an injection cavity that can form a moldable workpiece can be formed between the front mold, the rear mold and the two first sliders. In this way, the workpiece can be molded by submerging glue, and the glue outlet mark is small. Moreover, since the flow channel port of the submersible flow channel is opposite to the space forming the installation position in the injection cavity, the glue outlet mark can be located at the installation position. After the support foot pad is installed at a later time, the glue outlet mark can be hidden to improve the aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 It is a structural schematic diagram of the housing according to an embodiment of the present disclosure;

[0028] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0029] Figure 3 The structure of the injection mold according to the embodiment of the present disclosure is shown in FIG. Figure 1 ;

[0030] Figure 4 A schematic top view of the injection mold according to an embodiment of the present disclosure;

[0031] Figure 5 A cross-sectional view of the injection mold according to the embodiment of the present disclosure Figure 1 ;

[0032] Figure 6 for Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0033] Figure 7 The structure of the injection mold according to the embodiment of the present disclosure is shown in FIG. Figure 2 ;

[0034] Figure 8 for Figure 7 A partial enlarged schematic diagram of point C in the middle;

[0035] Fig. 9 A cross-sectional view of the injection mold according to the embodiment of the present disclosure Figure 2 ;

[0036] Fig.10 for Fig. 9 A partial enlarged schematic diagram of point D in the middle.

[0037] Among them, 1. base;

[0038] 2. front mold; 21. glue inlet; 22. limiter; 23. first inclined guide column;

[0039] 3. Rear mold; 31. Ejector pin hole;

[0040] 4. First slider; 41. Submersible flow channel; 42. First oblique guide post hole; 43. Top glue hole; 44. Positioning protrusion;

[0041] 5. Second slider;

[0042] 6. wear-resistant block; 61. first inclined surface;

[0043] 7. Auxiliary component; 71. Guide column; 72. First elastic member;

[0044] 8. ejector assembly; 81. driven ejector pin; 82. second elastic member; 83. limit block; 831. through hole;

[0045] 9. Active ejector;

[0046] 10. Workpiece; 101. Installation position. DETAILED DESCRIPTION

[0047] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0048] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0049] The present disclosure provides an injection mold, which is suitable for injection molding a workpiece, wherein the workpiece 10 has a mounting position 101 for mounting a support foot pad. Figure 1 and Figure 2 The workpiece 10 may be a workpiece of an audio system. The workpiece 10 is formed by injection molding, and has a mounting position 101 for mounting a support pad. The mounting position 101 of the workpiece 10 supports the audio system. Alternatively, the workpiece 10 may be other products, such as household appliances.

[0050] like Figures 3 to 10 As shown, the injection mold includes a base 1, a front mold 2, a rear mold 3 and a first slider 4. Among them, there are two first sliders 4, both of which are slidably set on the base 1 and can approach or move away from each other, the rear mold 3 is set on the base 1, the front mold 2 can move up and down relative to the rear mold 3, and the front mold 2, the rear mold 3 and the two first sliders 4 can enclose an injection cavity for forming a moldable workpiece 10. At least one of the first sliders 4 is provided with a submerged flow channel 41, the submerged flow channel 41 has a flow channel opening connected to the injection cavity, and the flow channel opening is opposite to the space forming the mounting position 101 in the injection cavity, and the front mold 2 is provided with a glue inlet 21 that can be connected to the submerged flow channel 41.

[0051] In specific implementation, the specific method of using the injection mold is as follows: first, the two first sliders 4 are moved to their respective preset positions, and then the front mold 2 is moved downward relative to the rear mold 3 to form an injection cavity capable of molding the workpiece 10 between the rear mold 3 and the two first sliders 4. At this time, the glue inlet 21 on the front mold 2 is connected to the submersible flow channel 41 on the first slider 4, and then the melted material is input through the glue inlet 21, and the melted material enters the injection cavity through the submersible flow channel 41. Since the flow channel opening of the submersible flow channel 41 is directly opposite to the space forming the installation position 101 in the injection cavity, the submersible glue inlet position can be at the installation position 101 of the support foot pad, the glue inlet mark is small, and after being covered by the support foot pad in the later stage, the glue inlet mark is hidden, which can improve the aesthetics of the workpiece 10.

[0052] In some embodiments, one of the first slider 4 and the base 1 is provided with a guide protrusion, and the other is provided with a guide slot extending along the moving direction of the first slider 4, and the guide protrusion is located in the guide slot. The movement of the first slider 4 is guided by the cooperation of the guide protrusion and the guide slot, so as to prevent the first slider 4 from deflecting during the movement.

[0053] Exemplarily, multiple groups of guide protrusions and guide grooves may be provided to improve the guiding effect on the first sliding block 4 .

[0054] In some embodiments, the rear mold 3 may be convexly disposed between the two first sliders 4, so that a cavity of the workpiece 10 may be formed during injection molding. Alternatively, the rear mold 3 may also have a groove, so that a bulge of the workpiece 10 may be formed during injection molding. Alternatively, the rear mold 3 may also be partially convexly disposed between the two first sliders 4, and the other part may have a groove.

[0055] It should be noted that the first slider 4 has an injection position and a first demolding position. When the first slider 4 is at the injection position, the two first sliders 4 can surround the front mold 2 and the rear mold 3 to form an injection cavity that can mold the workpiece 10. When the first slider 4 is at the injection position, the distance between the two first sliders 4 is the smallest. When the first slider 4 is at the first demolding position, the distance between the two first sliders 4 is the largest, which facilitates demolding of the workpiece 10.

[0056] It can be understood that the front mold 2 also has an injection position and a demolding position relative to the rear mold 3. When the front mold 2 moves from its injection position to the demolding position, the front mold 2 moves upward relative to the rear mold 3. When the front mold moves from its demolding position to the injection position, the front mold 2 moves downward relative to the rear mold 3. When the front mold 2 is located at the injection position, the front mold 2 can be surrounded by the rear mold 3 and the two first sliders 4 to form an injection cavity that can form the workpiece 10. When the front mold 2 is located at the demolding position, it is convenient to demold the workpiece 10.

[0057] In summary, the injection mold provided by the present invention is provided with a first slider 4, and at least one of the first sliders 4 is provided with a submersible flow channel 41, and a glue inlet 21 connected to the submersible flow channel 41 is provided on the front mold 2. An injection cavity that can form a moldable workpiece 10 can be formed between the front mold 2, the rear mold 3 and the two first sliders 4. In this way, the workpiece can be molded by submerging the glue, and the glue inlet mark is small. Moreover, since the flow channel port of the submersible flow channel 41 is opposite to the space forming the installation position 101 in the injection cavity, the glue inlet mark can be located at the installation position 101. After the support foot pad is installed at a later stage, the glue inlet mark can be hidden to improve the aesthetics.

[0058] In some embodiments, reference Figure 3 and Figure 4 The injection mold also includes two second sliders 5, which are slidably disposed on the base 1 and can be moved closer to or farther away from each other. The front mold 2, the rear mold 3, the two first sliders 4 and the two second sliders 5 can be surrounded to form the above-mentioned injection cavity.

[0059] That is, the front mold 2 that surrounds the injection cavity can move up and down relative to the rear mold 3, the two first sliders 4 can move closer to or farther from each other, and the two second sliders 5 can also move closer to or farther from each other, so that during injection molding, the two first sliders 4 can move closer to each other, the two second sliders 5 can move closer to each other, and the two first sliders 4, the two second sliders 5 and the rear mold 3 surround and form a cavity with an opening, and then the front mold 2 moves downward relative to the rear mold 3, thereby surrounding and forming the above-mentioned injection cavity. When the injection molding is completed, the front mold 2 can be moved upward relative to the rear mold 3, so that the two first sliders 4 move away from each other, and the two second sliders 5 move away from each other, so as to facilitate the removal of the workpiece 10, that is, to facilitate the demolding of the workpiece 10.

[0060] For example, refer to Figure 4 The sliding direction of the second slider 5 can be selected to be perpendicular to the sliding direction of the first slider 4. Alternatively, the included angle between the moving direction of the second slider 5 and the moving direction of the first slider 4 can also be greater than 90° or less than 90°.

[0061] It should be noted that the second slider 5 has an injection position and a second demolding position. When the second slider 5 is at the injection position, the two second sliders 5 can surround the front mold 2, the rear mold 3 and the two first sliders 4 to form an injection cavity that can mold the workpiece 10. When the second slider 5 is at the injection position, the distance between the two second sliders 5 is the smallest. When the second slider 5 is at the second demolding position, the distance between the two second sliders 5 is the largest, which facilitates demolding of the workpiece 10.

[0062] In some embodiments, reference Figure 5 The injection mold also includes a first inclined guide column 23 connected to the front mold 2. The first slider 4 is provided with a first inclined guide column hole 42 for the first inclined guide column 23 to extend into. When the front mold 2 moves downward relative to the rear mold 3, the first inclined guide column 23 is driven to move downward so that the two first sliders 4 move toward each other.

[0063] That is to say, the movement of the first slider 4 is driven by the front mold 2 through the first oblique guide column 23, so the switching of the first slider 4 between the injection position and the demolding position is driven by the front mold 2 through the first oblique guide column 23. When the front mold 2 moves downward relative to the rear mold 3, the first oblique guide column 23 moves downward in the first oblique guide column hole 42, so that the force of the first oblique guide column 23 on the first slider 4 causes the first slider 4 to move in the direction close to the other first slider 4, so that the two first sliders 4 are close to each other, that is, the first slider 4 is moved to the injection position. When the front mold 2 moves upward relative to the rear mold 3, the first oblique guide column 23 moves upward in the first oblique guide column hole 42, and the force of the first oblique guide column 23 on the first slider 4 causes the first slider 4 to move in the direction away from the other first slider 4, so that the two first sliders 4 are away from each other, that is, the first slider 4 is moved from the injection position to the first demolding position. In this way, the first slider 4 can be moved on the base 1 by the movement of the front mold 2, which is convenient for the adjustment of the injection mold.

[0064] For example, refer to Figure 5 The first oblique guide post hole 42 is provided on each first slider 4 , and correspondingly, the front mold 2 is connected to each first slider 4 with a first oblique guide post 23 , so that the front mold 2 can drive the two first sliders 4 .

[0065] That is, both first slide blocks 4 are driven by the front mold 2 through the first inclined guide pillars 23. Figure 3 and Figure 4 , each first slider 4 may be provided with two first oblique guide post holes 42, and each first oblique guide post hole 42 corresponds to one first oblique guide post 23. In other words, each first slider 4 is driven by two first oblique guide posts 23, which can improve the stability of the first slider 4 when it moves. Alternatively, the first slider 4 may be driven by three or more first oblique guide posts 23, and in this case, the number of the first oblique guide post holes 42 corresponds to the number of the first oblique guide posts 23.

[0066] It should be noted that the front mold 2 and the first slider 4 are switched synchronously between their respective injection positions and demolding positions, that is, when the front mold 2 moves from its own demolding position to the injection position, the first slider 4 is driven to move from its own demolding position to the injection position by the first inclined guide pillar 23. When the front mold 2 moves from its own injection position to the demolding position, the first slider 4 is driven to move from its own injection position to the first demolding position by the first inclined guide pillar 23.

[0067] In some embodiments, the injection mold also includes a second inclined guide column connected to the front mold 2, and a second inclined guide hole for the second inclined guide column to extend into is opened on the second slide block 5. When the front mold 2 moves downward relative to the rear mold 3, the second inclined guide column is driven to move downward so that the two second slide blocks 5 move toward each other.

[0068] That is to say, the movement of the second slider 5 is driven by the front mold 2 through the second inclined guide column, so the switching of the second slider 5 between the injection position and the demolding position is driven by the front mold 2 through the second inclined guide column. When the front mold 2 moves downward relative to the rear mold, the second inclined guide column moves downward in the second inclined guide column hole, so that the force of the second inclined guide column on the second slider 5 causes the second slider 5 to move in the direction close to the other second slider 5, so that the two second sliders 5 are close to each other, that is, the second slider 5 moves to the injection position. When the front mold 2 moves upward relative to the rear mold 3, the second inclined guide column moves upward in the second inclined guide column hole, and the force of the second inclined guide column on the second slider 5 causes the second slider 5 to move in the direction away from the other second slider 5, so that the two second sliders 5 are away from each other, that is, the second slider 5 moves from the injection position to the second demolding position. In this way, the second slider 5 can be moved on the base 1 by the movement of the front mold 2, which is convenient for the adjustment of the injection mold.

[0069] Exemplarily, each second slider 5 is provided with the second inclined guide post hole, and correspondingly, each second slider 5 is connected to the front mold 2 with a second inclined guide post, so that the front mold 2 can drive the two second sliders 5 .

[0070] That is to say, both second sliders 5 are driven by the front mold 2 through the second oblique guide pillars. For example, each second slider 5 may be provided with a second oblique guide pillar hole, and each second oblique guide pillar hole corresponds to a second oblique guide pillar. That is to say, each second slider 5 is driven by a second oblique guide pillar. Alternatively, the second slider 5 may be driven by two or more second oblique guide pillars, in which case the number of second oblique guide pillar holes corresponds to the number of second oblique guide pillars.

[0071] It should be noted that the front mold 2 and the second slider 5 are switched synchronously between their respective injection positions and demolding positions, that is, when the front mold 2 moves from its own demolding position to the injection position, the second slider is driven by the second inclined guide column to move from its own second demolding position to the injection position. When the front mold 2 moves from its own injection position to the demolding position, the second slider is driven by the second inclined guide column to move from its own injection position to the second demolding position.

[0072] In some embodiments, reference Figure 1 and Figure 6 , each first slider 4 has a first inclined surface 61 on a side facing away from another first slider 4. The injection mold further includes a stopper 22, each first slider 4 is provided with a stopper 22 correspondingly, the stopper 22 has a second inclined surface that can move along the first inclined surface 61, and the stopper 22 is connected to the front mold 2. When the front mold 2 moves downward relative to the rear mold 3, the stopper 22 is driven to move downward so that the second inclined surface moves downward along the first inclined surface 61.

[0073] It is understandable that by setting the stopper 22, when the front mold 2 moves downward relative to the rear mold 3, the second inclined surface of the stopper 22 slides down along the first inclined surface 61, which can not only drive the first slider 4 to move closer to the other first slider 4, but also limit the first slider 4 when the front mold 2 cooperates with the first slider 4 to form an injection cavity, thereby preventing the first slider 4 from moving, ensuring the integrity of the injection cavity, and improving the yield rate of the workpiece 10. When the front mold 2 moves upward relative to the rear mold 3, the second inclined surface slides up along the first inclined surface 61 to release the limit on the first slider 4.

[0074] That is to say, the first inclined guide column 23 and the stopper 22 move synchronously. When the first inclined guide column 23 drives the first slider 4 to move, the second inclined surface of the stopper 22 slides along the first inclined surface 61. Specifically, when the first inclined guide column 23 pushes the first slider 4 to move in the direction close to the other first slider 4, the second inclined surface of the stopper 22 moves down along the first inclined surface 61, and also plays a role in pushing the first slider 4 to move in the direction close to the other first slider 4, and at the same time limits the first slider 4 after the first inclined guide column 23 stops moving. When the first inclined guide column 23 pushes the first slider 4 to move in the direction away from the other first slider 4, the second inclined surface moves up along the first inclined surface 61, and the stopper 22 gradually releases the limit on the first slider 4.

[0075] For example, refer to Figure 4 , three limiting members 22 can be provided for each first slider 4, and correspondingly, the first slider 4 has three first inclined surfaces 61 to improve the limiting effect of the first slider 4. Alternatively, one, two or more than four limiting members 22 can be provided for each first slider 4.

[0076] For example, refer to Figure 3 and Figure 6 Each first slider 4 is provided with a wear-resistant block 6 on one side facing away from another first slider 4, and the wear-resistant block 6 is provided with the first inclined surface 61. By providing the wear-resistant block 6 and the first inclined surface 61 on the wear-resistant block 6, the service life of the first slider 4 can be extended and the wear of the first slider 4 can be avoided.

[0077] It should be noted that the number of the wear-resistant blocks 6 is the same as the number of the limiting members 22 and they correspond one to one.

[0078] In some embodiments, reference Figures 3 to 5The injection mold further includes an auxiliary component 7, each first slider 4 is provided with an auxiliary component 7, and a guide hole (not shown in the figure) is provided on the first slider 4. The auxiliary component 7 includes a guide column 71 and a first elastic member 72. One end of the guide column 71 extends into the guide hole, and the other end is relatively fixed to the stationary part of the injection mold. The first elastic member 72 is sleeved on the guide column 71, and one end is connected to the guide column 71, and the other end is connected to the first slider 4. When the two first sliders 4 are close to each other, the first elastic member 72 is stretched.

[0079] That is, when the two first sliders 4 are close to each other, the first elastic member 72 is stretched. Therefore, after the injection molding is completed, when the two first sliders 4 are away from each other, since the first elastic member 72 is in a stretched state, the first elastic member 72 will generate a pulling force on the first slider 4, thereby promoting the first slider 4 to move away from the other first slider 4, which is conducive to the first slider 4 being out of contact with the injection molded workpiece 10 and facilitating the demoulding of the workpiece 10.

[0080] Exemplarily, the first elastic member 72 may be a columnar spring.

[0081] Exemplarily, the guide column 71 may have a first column segment and a second column segment, the first column segment extends into the guide hole, the diameter of the first column segment is smaller than the diameter of the second column segment, and the first elastic member 72 is sleeved on the first column segment and abuts against the step surface formed by the first column segment and the second column segment.

[0082] In some embodiments, reference Figure 7 and Figure 8 One of the front mold 2 and the first slider 4 is provided with a positioning groove, and the other is provided with a positioning protrusion 44, and the positioning protrusion 44 can be inserted into the positioning groove.

[0083] That is to say, the front mold 2 and the first slide block 4 are positioned by the positioning protrusion 44 and the positioning groove, and cooperate with the first inclined guide column 23 and the limit block in front to ensure that the front mold 2 and the first slide block 4 are in place, which is conducive to improving the yield rate of the workpiece 10.

[0084] For example, refer to Figure 7 and 8 The first sliding block 4 is provided with a positioning protrusion 44 , and correspondingly, the front mold 2 is provided with a positioning groove.

[0085] In some embodiments, reference Figure 7 and Figure 8 , one of the first sliders 4 may be provided with a submersible flow channel 41, which can reduce the glue injection marks on the workpiece 10. Alternatively, both first sliders 4 may be provided with submersible flow channels 41.

[0086] In some embodiments, reference Fig. 9and Fig.10 The first slider 4 is also provided with a rubber hole 43 connected to the submersible flow channel 41. The injection mold further includes a rubber assembly 8, which includes a driven ejector pin 81 and a second elastic member 82. The driven ejector pin 81 and the second elastic member 82 are both arranged in the rubber hole 43. One end of the second elastic member 82 abuts against the first slider 4, and the other end abuts against the driven ejector pin 81. When the driven ejector pin 81 is pressed, it can compress the second elastic member 82 and extend into the submersible flow channel 41.

[0087] It is understandable that during the injection molding process, the melted material is input into the injection molding cavity through the submerged flow channel 41, and the material remaining in the submerged flow channel 41 will also solidify, so after the injection molding is completed, the solidified material in the submerged flow channel 41 needs to be ejected. By providing the driven ejector 81, the driven ejector 81 compresses the second elastic member 82 downward under the action of external force and extends into the submerged flow channel 41 to eject the solidified material, and when the driven ejector 81 is not subjected to external force, it withdraws from the submerged flow channel 41 under the action of the second elastic member 82 to avoid affecting the next injection molding.

[0088] For example, refer to Fig.10 The ejector hole 43 is a stepped hole, a limiting step is provided on the driven ejector pin 81, and the second elastic member 82 is located between the stepped surface of the stepped hole and the limiting step. When the driven ejector pin 81 is in a natural state, the stepped surface is close to the submersible flow channel 41 relative to the limiting step, that is, the stepped surface is located above the limiting step.

[0089] Furthermore, the ejector assembly 8 further includes a limit block 83 disposed in the ejector hole 43, the limit block 83 being located below the driven ejector pin 81, a through hole 831 being provided on the limit block 83, and the driven ejector pin 81 abuts against the limit block 83 in a natural state. In other words, the driven ejector pin 81 is limited by the limit block 83 to prevent the driven ejector pin 81 from falling out of the ejector hole 43.

[0090] For example, in a specific implementation, the limit block 83 is embedded in the first slider 4 and connected to the first slider 4 by screws. Alternatively, the limit block 83 can also be connected to the first slider 4 by bonding, clamping or welding.

[0091] Furthermore, an ejector hole 31 is provided on the rear mold 3 or the base 1. The injection mold further includes a driving member (not shown in the figure) and an active ejector 9, the active ejector 9 is arranged in the ejector hole 31, and the driving member can drive the active ejector 9 to move up and down in the ejector hole 31; when the ejector hole 31 is aligned with the through hole 831, the active ejector 9 can pass through the through hole 831 to drive the driven ejector 81 to move upward.

[0092] For example, refer to Fig.10The ejector hole 31 is arranged on the rear mold 3. When the first slider 4 slides so that the through hole 831 and the ejector hole 31 are offset, the active ejector 9 cannot drive the driven ejector 81 to move upward. When the first slider 4 slides so that the through hole 831 and the ejector hole 31 are aligned, the active ejector 9 can extend into the through hole 831 to drive the driven ejector 81 to move upward.

[0093] It can be understood that the first slider 4 provided with the submersible flow channel 41 has an injection position and a first demolding position, and the front mold 2 drives the first slider 4 to move between the injection position and the first demolding position through the first inclined guide column 23. When the first slider 4 is located at the injection position, the ejector hole 31 and the through hole 831 are staggered, and the two first sliders 4 can be surrounded by the front mold 2, the rear mold 3 and another first slider 4 to form an injection cavity, and at this time, the melted material can be input into the injection cavity through the glue inlet 21 and the submersible flow channel 41 to perform injection molding of the workpiece 10. When the first slider is located at the first demolding position, the ejector hole 31 and the through hole 831 are aligned, and at this time, the driving member can drive the active ejector 9 to move upward and drive the driven ejector 81 to move upward through the through hole 831, and the driven ejector 81 moves upward and extends into the submersible flow channel 41 to eject the remaining solidified material, and the driven ejector 81 compresses the second elastic member 82 during the upward movement. When the driving member drives the active ejector pin 9 to move downward, the driven ejector pin 81 loses its thrust and returns to a natural state under the action of the second elastic member 82 .

[0094] It should be noted that, in this article, relational terms such as "first" and "second" 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0095] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An injection mold, characterized in that: The injection mold comprises: Base (1); A rear mold (3) is arranged on the base (1); The front mold (2) moves up and down relative to the rear mold (3), and the front mold (2) is provided with a glue inlet (21); A plurality of first sliding blocks (4) are slidably disposed on the base (1) and are capable of moving closer to or farther from each other; An injection cavity can be formed between the front mold (2), the rear mold (3) and the plurality of first sliders (4); At least one of the first sliders (4) is provided with a submerged flow channel (41), the flow channel opening of the submerged flow channel (41) being connected to the injection cavity is opposite to the space forming the mounting position (101) in the injection cavity, and the submerged flow channel (41) is connected to the glue inlet (21); One of the first slider (4) and the base (1) is provided with a guide protrusion, and the other is provided with a guide slot extending along the moving direction of the first slider (4), and the guide protrusion is located in the guide slot.

2. The injection mold according to claim 1, characterized in that: A plurality of groups of the guide protrusions and the guide grooves are provided.

3. The injection mold according to claim 1, characterized in that: The first slider (4) has a first injection position and a first demoulding position. When a plurality of the first sliders (4) are located at the first injection position, the plurality of the first sliders (4), the front mold (2) and the rear mold (3) are arranged to form the injection cavity. When a plurality of the first sliding blocks (4) are located at the first demoulding position, the distance between two of the first sliding blocks (4) is the largest.

4. The injection mold according to claim 3, characterized in that: The front mold (2) comprises a second injection position and a second demoulding position, the front mold (2) moves from the second injection position to the second demoulding position, and the front mold (2) moves upward relative to the rear mold (3); The front mold (2) moves from the second demoulding position to the second injection position, and the front mold (2) moves downward relative to the rear mold (3).

5. The injection mold according to claim 1, characterized in that: The injection mold further comprises: A plurality of second sliding blocks (5) are slidably disposed on the base (1) and are capable of moving closer to or farther from each other; The front mold (2), the rear mold (3), a plurality of the first sliders (4) and a plurality of the second sliders (5) can enclose and form the injection cavity.

6. The injection mold according to claim 5, characterized in that: The front mold (2) moves upward relative to the rear mold (3), the plurality of first sliders (4) move away from each other, and the plurality of second sliders (5) move away from each other; The front mold (2) moves downward relative to the rear mold (3), and the front mold (2), the rear mold (3), a plurality of the first sliders (4) and a plurality of the second sliders (5) can enclose and form the injection cavity.

7. The injection mold according to claim 6, characterized in that: The sliding direction of the first sliding block (4) is perpendicular to the sliding direction of the second sliding block (5).

8. The injection mold according to claim 1, characterized in that: The injection mold further comprises an auxiliary component (7), each of the first sliders (4) is provided with the auxiliary component (7) correspondingly, and a guide hole is provided on the first slider (4); The auxiliary component (7) comprises a guide column (71) and a first elastic member (72); one end of the guide column (71) extends into the guide hole, and the other end is fixed relative to the stationary part of the injection mold; the first elastic member (72) is sleeved on the guide column (71), and one end is connected to the guide column (71), and the other end is connected to the first slider (4); when the two first sliders (4) are close to each other, the first elastic member (72) is stretched.

9. The injection mold according to claim 1, characterized in that: The first sliding block (4) is also provided with a top glue hole (43) connected to the submersible flow channel (41); The injection mold further comprises an ejector assembly (8), wherein the ejector assembly (8) comprises a driven ejector pin (81) and a second elastic member (82), wherein the driven ejector pin (81) and the second elastic member (82) are both arranged in the ejector hole (43), wherein one end of the second elastic member (82) abuts against the first slider (4), and the other end abuts against the driven ejector pin (81), and when the driven ejector pin (81) is pressurized, it can compress the second elastic member (82) and extend into the submersible flow channel (41).

10. The injection mold according to claim 9, characterized in that: The ejector assembly (8) further comprises a limit block (83) arranged in the ejector hole (43), the limit block (83) being located below the driven ejector pin (81), a through hole (831) being provided on the limit block (83), and the driven ejector pin (81) abuts against the limit block (83) in a natural state.

11. The injection mold according to claim 10, characterized in that: The rear mold (3) or the base (1) is provided with an ejector pin hole (31); The injection mold further comprises a driving member and an active ejector pin (9), wherein the active ejector pin (9) is disposed in the ejector pin hole (31), and the driving member is configured to drive the active ejector pin (9) to move up and down in the ejector pin hole (31); when the ejector pin hole (31) is aligned with the through hole (831), the active ejector pin (9) can pass through the through hole (831) to drive the driven ejector pin (81) to move upward.

12. The injection mold according to claim 1, characterized in that: The injection mold further comprises a first inclined guide post (23) connected to the front mold (2), and the first sliding block (4) is provided with a first inclined guide post hole (42) for the first inclined guide post (23) to extend into; When the front mold (2) moves downward relative to the rear mold (3), it drives the first inclined guide column (23) to move downward so that the two first sliding blocks (4) move toward each other.

13. The injection mold according to claim 12, characterized in that: Each of the first sliding blocks (4) has a first inclined surface (61) on a side facing away from another first sliding block (4); The injection mold further comprises a limiting member (22), each of the first sliding blocks (4) being provided with the limiting member (22) in correspondence, the limiting member (22) having a second inclined surface capable of moving along the first inclined surface (61), and the limiting member (22) being connected to the front mold (2); When the front mold (2) moves downward relative to the rear mold (3), it drives the limiting member (22) to move downward so that the second inclined surface moves downward along the first inclined surface (61).

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