Plastic shell injection mold

Abstract

The utility model discloses a plastic shell injection mold, relates to the field of plastic shell production, solves the problem that the material body in the existing mold body is easy to leak out and thus affects the subsequent injection molding effect, and adopts the following scheme: comprising a bottom plate and a bottom mold and a top mold assembled thereon; the top side sliding sleeve of the bottom plate is provided with the bottom mold and the top mold, and the top side of the bottom mold and the bottom side of the top mold are provided with connected material troughs; an oblique groove part and a straight groove part are provided at the edge of the material trough on the top side of the bottom mold, and a clamping frame part that is adapted to the shape of the oblique groove part and the straight groove part is fixedly installed at the edge of the material trough on the bottom side of the top mold; the plastic shell injection mold, through the arrangement of the shapes of the bottom mold and the top mold, can keep the upper half of the plastic shell above the bottom mold during demoulding, and the clamping mode between the oblique groove part and the straight groove part and the clamping frame part can avoid the leakage of the material in the material trough, thereby ensuring the injection molding effect.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic shell production, in particular to a plastic shell injection mold. Background Art

[0002] Plastic is an important organic synthetic polymer material. Most plastics are light, chemically stable, and will not rust, so they are widely used. Plastics are mainly made by injection molds. The required plastic shell shape can be processed in one go through the injection mold, which is highly efficient and very suitable for factory production.

[0003] After searching, the application with patent application number CN202021916440.9 discloses a plastic shell injection mold, including a bottom plate and a top plate, the bottom plate is fixedly connected with a bottom block on both sides, the top plate is fixedly connected with a top block on both sides, a limit rod is connected between the bottom block and the top block, a lower mold is provided on the top surface of the bottom plate, an upper mold is provided on the bottom surface of the top plate, a mounting frame is provided on one side of the bottom plate, a sliding rod is provided on the inner side of the mounting frame, a first sliding block and a second sliding block are nested on the side surface of the sliding rod, a connecting rod is connected between the first sliding block and the second sliding block, and a synchronous cross bar is fixedly connected to one side of the second sliding block;

[0004] The above application document performs injection molding of the plastic shell by setting up an upper and lower double mold. After demolding, the upper part of the plastic shell is located above the bottom mold, so that it can be directly pulled out of the bottom mold to achieve the effect of easy unloading. However, a slit is provided between the upper and lower mold grooves. If the inner material directly leaks out during injection molding, the molded plastic shell may be irregular in shape, and the sealing is difficult to ensure, resulting in limited injection molding effect.

[0005] Therefore, we propose a plastic shell injection mold. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a plastic shell injection mold, which solves the problem that the material in the prior mold is easy to leak out and thus affects the subsequent injection molding effect.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a plastic shell injection mold, including a bottom plate and a bottom mold and a top mold assembled thereon;

[0008] The top side of the bottom plate is slidably sleeved with a bottom mold and a top mold, and the top side of the bottom mold and the bottom side of the top mold are provided with a connected material trough;

[0009] An oblique groove portion and a straight groove portion are provided at the edge of the material groove on the top side of the bottom mold, and a clamping frame portion matching the shape of the oblique groove portion and the straight groove portion is fixedly installed at the edge of the material groove on the bottom side of the top mold.

[0010] Preferably, the oblique groove portion and the straight groove portion are both rectangular grooves, the straight groove portion is rectangular, and a straight frame portion matching the specification of the straight groove portion is provided in the clamping frame portion;

[0011] The straight groove portion and the straight frame portion are arranged above the contact point, which can prevent the material from overflowing upward.

[0012] Preferably, the inclined groove portion is an inwardly inclined chamfered groove, and the inclined frame portion is a rectangular frame with a chamfered outer wall that matches the specifications of the inclined groove portion;

[0013] The inclined groove portion and the inclined frame portion are configured to fit each other, and the chamfered configuration is utilized to prevent the material body from moving upward and leaking out.

[0014] Preferably, a driving assembly is fixedly connected to the center of the top of the top mold, the main body of the driving assembly is a hydraulic cylinder seat, and the bottom end of the output shaft of the hydraulic cylinder seat is fixedly connected to the bottom plate;

[0015] Among them, the setting of the driving component can drive the top mold to slide up and down on the top side of the bottom mold to achieve mold sealing and mold separation.

[0016] Preferably, a through injection hole is opened at the top of the top mold, the injection hole is an oblique aperture, and a sealing seat is installed on the top side plug of the injection hole;

[0017] Among them, the setting of the injection hole can facilitate the injection of the material into the material groove between the bottom mold and the top mold, and the oblique setting can also increase the stability during injection.

[0018] Preferably, four groups of sliding columns in opposite positions are fixedly installed at the four corners of the top of the bottom plate, and the sliding columns are regular hexagonal columns, and sliding sleeve seats that slide with the sliding columns are fixedly installed at the corners of the bottom mold and the top mold;

[0019] Among them, the setting is convenient for cooperating with the driving component to slide the bottom plate up and down, so as to facilitate injection molding and subsequent mold removal.

[0020] The utility model provides a plastic shell injection mold, which has the following beneficial effects:

[0021] The plastic shell injection mold can keep the upper part of the plastic shell above the bottom mold during demoulding by setting the shapes of the bottom mold and the top mold, and the clamping method between the inclined groove part and the straight groove part and the clamping frame part can avoid leakage of material in the material trough, thereby ensuring the injection molding effect and solving the problem that the material body in the existing mold body is easy to leak out and thus affects the subsequent injection molding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the inner side of the bottom mold of the utility model;

[0024] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0025] Figure 4 It is a structural schematic diagram of the inner side of the top mold of the utility model.

[0026] In the figure: 1, bottom plate; 11, sliding column; 2, bottom mold; 21, inclined groove part; 22, straight groove part; 3, top mold; 31, clamping frame part; 311, inclined frame part; 312, straight frame part; 32, injection hole; 4, driving assembly. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-4 The embodiment of the utility model provides a technical solution: a plastic shell injection mold, comprising a bottom plate 1 and a bottom mold 2 and a top mold 3 assembled thereon; the bottom mold 2 and the top mold 3 are slidably mounted on the top side of the bottom plate 1, and a connected material groove is provided on the top side of the bottom mold 2 and the bottom side of the top mold 3; an oblique groove portion 21 and a straight groove portion 22 are provided at the edge of the material groove on the top side of the bottom mold 2, and a card frame portion 31 matching the shape of the oblique groove portion 21 and the straight groove portion 22 is fixedly installed at the edge of the material groove on the bottom side of the top mold 3;

[0029] Among them, the plastic shell injection mold, through the setting of the shape of the bottom mold 2 and the top mold 3, can keep the upper part of the plastic shell above the bottom mold 2 during demolding, and the clamping method between the inclined groove part 21 and the straight groove part 22 and the clamping frame part 31 can avoid the leakage of material in the material trough, thereby ensuring the injection molding effect and solving the problem that the material body in the existing mold body is easy to leak out and thus affect the subsequent injection molding effect.

[0030] Embodiment 2:

[0031] The inclined groove portion 21 and the straight groove portion 22 are both rectangular grooves, the straight groove portion 22 is rectangular, and a straight frame portion 312 matching the specification of the straight groove portion 22 is provided in the clamping frame portion 31; wherein, the shape of the straight groove portion 22 and the straight frame portion 312 is arranged above the contact point, which can prevent the material from overflowing upward.

[0032] The inclined groove portion 21 is a chamfered groove inclined inward, and the inclined frame portion 311 is a rectangular frame with a chamfered outer wall that matches the specifications of the inclined groove portion 21; wherein, the settings of the inclined groove portion 21 and the inclined frame portion 311 can fit each other, and their chamfered settings can be used to prevent the material body from moving upward and leaking out.

[0033] A driving assembly 4 is fixedly connected at the center of the top of the top mold 3. The main body of the driving assembly 4 is a hydraulic cylinder seat, and the bottom end of the output shaft of the hydraulic cylinder seat is fixedly connected to the bottom plate 1. The setting of the driving assembly 4 can drive the top mold 3 to slide up and down on the top side of the bottom mold 2 to achieve mold sealing and mold splitting.

[0034] A through injection hole 32 is opened at the top of the top mold 3, the injection hole 32 is an oblique aperture, and a sealing seat is installed on the top side of the injection hole 32; wherein, the setting of the injection hole 32 can facilitate the injection of material into the material trough between the bottom mold 2 and the top mold 3, and the oblique setting can also increase the stability during injection.

[0035] Four groups of sliding columns 11 are fixedly installed at the four corners of the top of the base plate 1. The sliding columns 11 are regular hexagonal columns, and sliding sleeve seats that slide with the sliding columns 11 are fixedly installed at the corners of the bottom mold 2 and the top mold 3; wherein, the setting of 5 is convenient for cooperating with the driving component 4 to slide the base plate 1 up and down, so as to facilitate its injection molding and subsequent demolding.

[0036] The working principle and use process of the utility model are as follows: when the device is needed to inject the mold, the driving component 4 is opened to drive the top mold 3 to the top side of the bottom mold 2. At this time, the card frame portion 31 on the bottom side of the top mold 3 is clamped in the inclined groove portion 21 and the straight groove portion 22 on the top side of the bottom mold 2 to seal the interface, and then the material body is injected into the groove body between the bottom mold 2 and the top mold 3 through the injection hole 32. After the injection is completed, the driving component 4 is opened to drive the top mold 3 to move upward. At this time, the upper half of the plastic shell is located above the bottom mold 2, and it can be directly taken out from the bottom mold 2.

[0037] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A plastic housing injection mold, comprising a bottom plate (1) and a bottom mold (2) and a top mold (3) mounted thereon; Features: The top side of the bottom plate (1) is slidably sleeved with a bottom mold (2) and a top mold (3), and the top side of the bottom mold (2) and the bottom side of the top mold (3) are provided with interconnected material troughs; An oblique groove portion (21) and a straight groove portion (22) are provided at the edge of the top material groove of the bottom mold (2), and a clamping frame portion (31) matching the shape of the oblique groove portion (21) and the straight groove portion (22) is fixedly installed at the edge of the bottom material groove of the top mold (3).

2. The plastic housing injection mold according to claim 1, characterized in that: The oblique groove portion (21) and the straight groove portion (22) are both rectangular grooves, the straight groove portion (22) is rectangular, and a straight frame portion (312) matching the specifications of the straight groove portion (22) is provided in the clamping frame portion (31).

3. The plastic housing injection mold according to claim 2, characterized in that: The inclined groove portion (21) is a chamfered groove inclined inwardly, and the inclined frame portion (311) is a rectangular frame with a chamfered outer wall that matches the specifications of the inclined groove portion (21).

4. The plastic housing injection mold according to claim 1, characterized in that: A driving assembly (4) is fixedly connected at the center of the top of the top mold (3); the main body of the driving assembly (4) is a hydraulic cylinder seat, and the bottom end of the output shaft of the hydraulic cylinder seat is fixedly connected to the bottom plate (1).

5. The plastic housing injection mold according to claim 1, characterized in that: A through injection hole (32) is provided at the top of the top mold (3), the injection hole (32) is an oblique hole diameter, and a sealing seat is installed on the top side of the injection hole (32).

6. The plastic housing injection mold according to claim 1, characterized in that: Four groups of sliding columns (11) are fixedly installed at the four corners of the top of the bottom plate (1) and are positioned opposite to each other. The sliding columns (11) are regular hexagonal columns, and sliding sleeve seats that are slidably mounted on the sliding columns (11) are fixedly installed at the corners of the bottom mold (2) and the top mold (3).

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