Side molding type product injection mold with front mold provided with half sliding block

Abstract

A side face forming type product injection mold with a front mold provided with a half sliding block comprises a front mold frame bottom plate, a front mold frame, a rear mold frame, an ejector pin fixing plate and a rear mold frame bottom plate, a front mold core is arranged in the front mold frame and comprises two mold blocks with a plurality of mold cavities, the mold blocks are provided with first setting base faces at the long axis ends and second setting base faces at the short axis ends, and the ejector pin fixing plate is arranged on the second setting base faces. A part of a first sliding groove is formed in the inner side of the second arrangement base face, the part of the first sliding groove forms a complete first sliding groove when the two modules are assembled, a first wedge block is arranged at the short shaft end of an inner cavity, where the modules are arranged, of the front mold frame, and the first wedge block is used for extruding the modules. And when the two modules are closed, the mold cavity spaces are complete and closed when the mold cavities arranged at the respective positions are closed together. The mold has the beneficial effects that forward and backward extrusion can be provided for the mold blocks, so that when the two mold blocks are combined together, each group of left and right opposite mold cavities are complete and closed when the two mold blocks are combined together, and the quality of a product can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for side molding products with a front mold having a Haver slider. Background Art

[0002] Injection molds are tools for producing plastic products and also tools for giving plastic products complete structures and precise dimensions. Injection molding through injection molds is a processing method used in mass production of certain parts with complex shapes. The specific steps are to inject the heated and melted plastic into the mold cavity under high pressure by the injection molding machine, and obtain the molded product after cooling and solidification.

[0003] Publication No. CN215320372U discloses an injection mold of a front mold Haval slider active pop-up mechanism, and the injection molded product is a hollow handle, comprising a first front mold component, a second front mold component, and a rear mold component which are arranged in sequence from front to back and can move relatively, and a mold core located between the second front mold component and the rear mold component; the mold core comprises a front mold core and a rear mold core, and a core is convexly provided on the rear mold core, and the front mold core comprises at least two inclined sliders which can be tilted and slid in the second front mold component, and a first elastic member is provided between the inclined slider and the second front mold component; when the mold is closed, the inclined sliders jointly enclose an insertion cavity, and the core of the rear mold core is inserted into the insertion cavity, and together with the front mold core, forms a cavity for the injection molded product; when the mold is opened, the first elastic member pops the inclined module out of the second front mold component. Although this injection mold can meet the molding requirements of injection molded products, it has a defect, that is, it only has a wedge block in a single direction (i.e. left and right), that is, the wedge block can only squeeze the inclined slider in the left and right directions. This method can only allow the two inclined sliders to be combined together and the two opposite insertion cavities to be combined together without generating a fitting gap, but lacks extrusion in the front and rear directions, resulting in the possibility of front and rear misalignment between the opposite insertion cavities when the two inclined sliders are combined, which will also affect the quality of the product. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings of the prior art and provides an injection mold for side molding products with a front mold having a Haver slider to solve the above-mentioned problems.

[0005] The utility model adopts a technical solution to solve its technical problems: the injection mold of the side molding product with a front mold and a Haver slider comprises a front mold frame bottom plate, a front mold frame, a rear mold frame, a pin fixing plate, and a rear mold frame bottom plate, a front mold core is arranged in the front mold frame, a rear mold core matched with the front mold core is arranged in the rear mold frame, the front mold core comprises two modules which can be tilted and slid in the front mold frame and have a plurality of mold cavities, the module has a first setting base surface which is tilted at the long axis end and a second setting base surface at the short axis end, a part of the first slide groove is formed on the inner side of the second setting base surface, and the part of the first slide groove constitutes a complete first slide groove when the two modules are molded together, and a first wedge block is arranged at the short axis end of the inner cavity of the front mold frame where the module is placed, and the first wedge block is used to extrude the module so that the mold cavity space is complete and closed when the mold cavities arranged at their respective locations of the two modules are put together when the mold is molded together.

[0006] Further improvement, the first setting base surface is inclined from the inner upper part to the outer lower part.

[0007] For further improvement, the front mold frame has an inner cavity in which the module is placed, and at least two first guide blocks are provided at the long axis end and at least one second guide block is provided at the short axis end; two second slide grooves which slide with the corresponding first guide blocks and define the guide direction are formed on the first setting base surface; a third slide groove which slides with the second guide block and defines the guide direction is formed on the second setting base surface; the inclination direction and inclination angle of the third slide groove are consistent with those of the first setting base surface.

[0008] Further improvement, the first guide block includes a first connecting portion constituting a shape configuration, and a first guide portion extending from the first connecting portion, the first connecting portion is arranged in the front mold frame by bolts, and the first guide portion partially enters into the second slide groove and slidably cooperates with the second slide groove.

[0009] Further improvement, the second guide block includes a second connecting part and a second guide part, the second connecting part is arranged in the front mold frame by bolts, the inclination direction and inclination angle of the second guide part are consistent with the third slide groove and partially enters into the third slide groove to cooperate with the gap of the third slide groove.

[0010] According to a further improvement, there is a separation distance between the inner side surface of the second connecting portion and the outer side surface of the module.

[0011] For further improvement, the first setting base surface is formed with a fourth slide groove located between the two second slide grooves and defining the guide direction, and the long axis end of the inner cavity in which the module is placed on the front mold frame is provided with a second wedge block, and the second wedge block is used to extrude the module so that when the mold cavities arranged at their respective locations of the two modules are combined during mold closing, the mold cavity space is complete and closed.

[0012] Further improvement, the inner side of the lower section of the second wedge block has a chamfer that is consistent with the inclination direction and inclination angle of the first setting base surface.

[0013] For further improvement, an elastic member is provided between the module and the front mold frame, which can pop the module out of the front mold frame and expose part of it outside when the mold is opened, and the elastic member is in a force storage state when the mold is closed.

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

[0015] The utility model can provide the module with extrusion in the front and rear directions, so that when the two modules are combined together, the two left and right opposite mold cavities of each group are combined together to be complete and closed, and there can be no front and rear misalignment, thereby ensuring the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the left side of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure on the right side of the utility model, in which the front mold frame bottom plate and the front mold frame are hidden;

[0018] Figure 3 For this utility model Figure 2 A partial enlarged schematic diagram of part A;

[0019] Figure 4 For this utility model Figure 2 A partial enlarged schematic diagram of part B;

[0020] Figure 5 For this utility model Figure 2 A partial enlarged schematic diagram of part C in the middle;

[0021] Figure 6 This is a schematic diagram of the full cross-section structure of the second guide block of the utility model;

[0022] Figure 7 For this utility model Figure 2 A partial enlarged schematic diagram of part D in the middle;

[0023] Figure 8 It is a structural schematic diagram of the second wedge-locking block of the utility model. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] Referring to the accompanying drawings: this side molding product injection mold with a Haval slider in the front mold comprises a front mold frame bottom plate 1, a front mold frame 2, a rear mold frame 3, a pin fixing plate 4, and a rear mold frame bottom plate 5. A front mold core 6 is arranged in the front mold frame 2, and a rear mold core cooperating with the front mold core 6 is arranged in the rear mold frame 3. The front mold core 6 comprises two modules 61 which can be tilted and slid in the front mold frame 2 and have a plurality of mold cavities. The module 61 has a first setting base surface 7 which is tilted at the long axis end and a second setting base surface 8 at the short axis end. A part of the first slide groove 9 is formed on the inner side of the second setting base surface 7, and the part of the first slide groove 9 forms a complete first slide groove 9 when the two modules 61 are molded. A first wedge block 10 is arranged at the short axis end of the inner cavity of the front mold frame 2 where the module 61 is placed. The first wedge block 10 is used to extrude the module 61 so that the cavity space of the two modules 61 is complete and closed when the cavities arranged at their respective locations are combined during mold closing. The principle of the present invention is that the first wedge block 10 provides extrusion to the module 61, and the direction is front and back. This arrangement is because there are multiple mold cavities on the module 61. Therefore, when the two modules 61 are put together, each group of two opposite mold cavities on the left and right must be complete and closed when put together. There must be no front and back misalignment. Once misaligned, all products coming out of the mold cavities will be unqualified, so this method is used to avoid this situation.

[0026] The first base surface 7 is inclined from the inside to the outside. This configuration allows the module 61 to slide outward and downward during demolding, so that the mold cavities of the two modules 61 that were originally combined together can be separated, thereby completing the separation of the product formed in the mold cavity from the mold cavity and completing demolding.

[0027] The long axis end of the inner cavity of the front mold frame 2 in which the module 61 is placed is provided with at least two first guide blocks 20, and the short axis end is provided with at least one second guide block 30. Two second slide grooves 40 that slide with the corresponding first guide blocks 20 and define the guiding direction are formed on the first setting base surface 7. A third slide groove 50 that slides with the second guide block 30 and defines the guiding direction is formed on the second setting base surface 8. The inclination direction and inclination angle of the third slide groove 50 are consistent with those of the first setting base surface 7. Such a setting enables the module 61 to have multiple guiding measures, which can increase the movement stability of the module 61 during demolding or mold closing.

[0028] The first guide block 20 includes a first connection portion 201 of a shaped configuration, and a first guide portion 202 extending from the first connection portion 201. The first connection portion 201 is arranged in the front mold frame 2 by bolts, and the first guide portion 202 partially enters the second slide groove 40 and slides with the second slide groove 40. Such an arrangement can not only ensure the stable arrangement of the first guide block 20, but also achieve sliding cooperation with the second slide groove 40, and the first guide portion 201 and the second slide groove 40 are also clearance-matched, so that the outer wall of the first guide portion 201 can slide relative to the inner wall of the second slide groove 40, and the stability of the module 61 during movement can also be increased. In this embodiment, the first connection portion 201 and the first guide portion 202 are metal blocks with thickness.

[0029] The second guide block 30 includes a second connecting portion 301 and a second guide portion 302. The second connecting portion 301 is arranged in the front mold frame 2 by bolts. The inclination direction and inclination angle of the second guide portion 302 are consistent with the third slide groove 50 and partially enters the third slide groove 50 to have a clearance fit with the third slide groove 50. Such an arrangement can not only ensure the stable arrangement of the second guide block 30, but also achieve sliding fit with the third slide groove 50, and the second guide portion 302 and the third slide groove 50 are also clearance fit, so that the outer wall of the second guide portion 302 can slide relative to the inner wall of the third slide groove 50, and can also increase the stability of the module 61 during movement. In this embodiment, the second connecting portion 301 and the second guiding portion 302 are metal blocks with thickness, and the second connecting portion 301 and the second guiding portion 302 are detachably matched, that is, the second connecting portion 301 has an insert block 301-a, and the second guiding portion 302 is provided with a socket 302-a for inserting the insert block 301-a, and the socket 302-a is divided into a sliding portion 302-a1 and a locking portion 302-a2 along the assembly direction. The plug 301-a has a clearance fit, and the locking part 302-a2 and the plug 301-a have an interference fit, and they need to be assembled or separated by a rubber hammer during installation or disassembly. In this way, the fitting clearance between the socket 302-a and the plug 301-a gradually decreases along the assembly guide, making the change in the width of the socket 302-a linear, making the insertion process convenient for the plug 301-a to enter and relatively smooth, which can avoid the phenomenon of jamming in the middle of the connection assembly and reduce the difficulty of disassembly and assembly.

[0030] There is a separation distance 60 between the inner side surface of the second connecting part 301 and the outer side surface of the module 61. The purpose of the separation distance 60 is to prevent the second connecting part 301 from contacting the module 61, thereby preventing the second connecting part 301 from being worn. When maintaining the mold, only the second guide part 302 needs to be replaced.

[0031] The first setting base surface 7 is formed with a fourth slide groove 70 located between the two second slide grooves 40 and defining a guiding direction. The long axis end of the inner cavity of the front mold frame 2 for the module 61 to be placed therein is provided with a second wedge block 80. The second wedge block 80 is used to extrude the module 61 so that when the mold cavities set at their respective locations of the two modules 61 are combined during mold closing, the mold cavity space is complete and closed. The function of the second wedge block 80 is consistent with that of the first wedge block 10, and the difference lies in the different extrusion directions, that is, the extrusion direction of the first wedge block 10 is front and back, and the extrusion direction of the second wedge block 80 is left and right. This setting is because there are multiple mold cavities on the module 61. Therefore, when the two modules 61 are combined, each group of two opposite mold cavities on the left and right must be complete and closed when combined, so that the two modules 61 will not produce a matching gap when the mold is closed, thereby avoiding leakage of injection molding materials and causing the product shape to be inconsistent with the required product shape, and can ensure the quality of the product obtained by injection molding.

[0032] The inner side of the lower section of the second wedge block 80 has a chamfer 801 that is consistent with the inclination direction and inclination angle of the first setting base surface 7. The second wedge block 80 not only functions to extrude the module 61, but can also slide with the fourth slide groove 70, which can increase the movement stability of the module 61 during demolding. The chamfer 801 is formed to obtain an inclined surface that is consistent with the inclination direction and inclination angle of the fourth slide groove 70, so that the module 61 will not interfere with it during demolding.

[0033] An elastic member 90 is provided between the module 61 and the front mold frame 2, which can eject the module 61 from the front mold frame 2 and expose part of the module 61 to the outside when the mold is opened. The elastic member 90 is in a state of storing force when the mold is closed. The elastic member 90 uses the effect of elasticity to accelerate the speed of its own movement when the mold is demolded, thereby improving the efficiency of demolding. In this embodiment, the elastic member 90 is a spring.

[0034] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An injection mold for a side molding product with a front mold and a Haver slider, comprising a front mold frame bottom plate (1), a front mold frame (2), a rear mold frame (3), an ejector fixing plate (4), and a rear mold frame bottom plate (5), wherein a front mold core (6) is arranged in the front mold frame (2), and a rear mold core matched with the front mold core (6) is arranged in the rear mold frame (3), characterized in that: The front mold core (6) comprises two modules (61) which can be tilted and slid in the front mold frame (2) and have a plurality of mold cavities. The modules (61) have a first setting base surface (7) which is tilted at the long axis end and a second setting base surface (8) at the short axis end. A part of the first slide groove (9) is formed on the inner side of the second setting base surface (7), and part of the first slide groove (9) forms a complete first slide groove (9) when the two modules (61) are molded together. A first wedge block (10) is provided at the short axis end of the inner cavity of the front mold frame (2) for the modules (61) to be placed therein. The first wedge block (10) is used to squeeze the modules (61) so that the mold cavity space is complete and closed when the mold cavities of the two modules (61) are respectively arranged at the molds when the molds are molded together.

2. The injection mold for side molding products with a front mold and a Haver slider according to claim 1, characterized in that: The first setting base surface (7) is inclined from the inner upper side to the outer lower side.

3. The injection mold for side molding products with a front mold and a Haver slider according to claim 2, characterized in that: The inner cavity of the front mold frame (2) in which the module (61) is placed is provided with at least two first guide blocks (20) at the long axis end and at least one second guide block (30) at the short axis end; the first setting base surface (7) is provided with two second slide grooves (40) which are slidably matched with the corresponding first guide blocks (20) and define the guide direction; the second setting base surface (8) is provided with a third slide groove (50) which is slidably matched with the second guide block (30) and defines the guide direction; the inclination direction and inclination angle of the third slide groove (50) are consistent with those of the first setting base surface (7).

4. The injection mold for side molding products with a front mold and a Haver slider according to claim 3, characterized in that: The first guide block (20) comprises a first connecting portion (201) forming a shape, and a first guide portion (202) extending from the first connecting portion (201), the first connecting portion (201) being arranged in the front mold frame (2) by means of bolts, and the first guide portion (202) partially enters into the second slide groove (40) and slidably cooperates with the second slide groove (40).

5. The injection mold for side molding products with a front mold and a Haver slider according to claim 3, characterized in that: The second guide block (30) comprises a second connecting portion (301) and a second guide portion (302); the second connecting portion (301) is arranged in the front mold frame (2) by means of bolts; the inclination direction and inclination angle of the second guide portion (302) are consistent with the third slide groove (50) and partially enters into the third slide groove (50) to be clearance-matched with the third slide groove (50).

6. The injection mold for side molding products with a front mold and a Haver slider according to claim 5, characterized in that: There is a separation distance (60) between the inner side surface of the second connecting portion (301) and the outer side surface of the module (61).

7. The injection mold for side molding products with a front mold and a Havers slider according to claim 3, characterized in that: The first setting base surface (7) is formed with a fourth slide groove (70) located between the two second slide grooves (40) and defining a guiding direction. The long axis end of the inner cavity of the front mold frame (2) for the module (61) to be placed therein is provided with a second wedge block (80), and the second wedge block (80) is used to squeeze the module (61) so that when the mold cavities of the two modules (61) at their respective locations are combined during mold closing, the mold cavity space is complete and closed.

8. The injection mold for side molding products with a front mold and a Haver slider according to claim 7, characterized in that: The inner side of the lower section of the second wedge block (80) has a chamfer (801) that is consistent with the inclination direction and inclination angle of the first setting base surface (7).

9. The injection mold for side molding products with a front mold and a Haver slider according to claim 1, characterized in that: An elastic member (90) is provided between the module (61) and the front mold frame (2), which can eject the module (61) from the front mold frame (2) and expose a portion of it to the outside when the mold is opened, and the elastic member (90) is in a force storage state when the mold is closed.

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