Front mold of novel injection mold

Abstract

The utility model provides a novel front mould of an injection mould, which comprises a front mould body, a plurality of bosses are vertically arranged on the rear surface of the front mould body, an upper forming groove, a feeding groove and a lower forming groove are sequentially arranged on the rear surface of the front mould body from top to bottom, and an injection hole is arranged in the middle of the feeding groove. An injection molding hole is formed in the front mold body, the injection molding hole penetrates through the front mold body front and back, a plurality of first discharging holes are formed in the feeding groove, a plurality of second discharging holes are formed in the upper circumference of the upper forming groove and the lower forming groove, a storage space communicated with all the first discharging holes is formed in the front mold body, and the rear side wall of the storage space is communicated with the second discharging holes. A plurality of ejector rods are arranged in the upper forming groove and the lower forming groove of the front mold body, and notch grooves are formed in the upper forming groove and the lower forming groove. The forming die has the advantages that two bottom plates can be formed at the same time through the upper forming groove and the lower forming groove; and the two notch grooves are formed, so that internal exhaust is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection mold equipment, in particular to a front mold of a novel injection mold. Background Art

[0002] Injection molding is also called injection molding, which is a molding method of injection and molding. When producing plastic boxes, it includes a plastic base plate and a box body. When injecting the base plate, it is not convenient to mold the two at the same time, and the operation efficiency is low; when the raw materials are sprayed into the mold at high temperature and high pressure, the air inside it is discharged, which affects the quality of the finished product. Utility Model Content

[0003] The utility model aims to provide a novel front mold of an injection mold, which can mold two products at the same time and realize the exhaust function inside the products, and is particularly suitable for producing injection-molded plastic box bodies.

[0004] The technical solution of the utility model is: a front mold of a novel injection mold, comprising a front mold body, a plurality of bosses are arranged on the upper and lower rear surfaces of the front mold body, an upper molding groove, a feed groove and a lower molding groove are arranged on the rear surface of the front mold body in sequence from top to bottom, an injection hole is arranged in the middle of the feed groove, and the injection hole penetrates the front mold body front and back, a plurality of first discharge holes are arranged in the feed groove, a plurality of second discharge holes are arranged circumferentially on the upper molding groove and the lower molding groove, a storage space connected to all the first discharge holes is arranged inside the front mold body, and the rear side wall of the storage space is connected to the plurality of second discharge holes, a plurality of ejector rods are arranged in the upper molding groove and the lower molding groove of the front mold body, and a notch groove is arranged on the upper molding groove and the lower molding groove.

[0005] Furthermore, the boss matches with the corresponding groove on the rear mold.

[0006] Furthermore, guide holes are provided at the four corners of the front mold body.

[0007] Furthermore, the depth of the notch groove is less than or equal to 0.015 mm.

[0008] Furthermore, the front mold body is arranged in cooperation with the rear mold, and the rear mold body is provided with an upper protrusion and a lower protrusion corresponding to the upper molding groove and the lower molding groove, and the rear mold body is also provided with a guide rod corresponding to the guide hole.

[0009] The utility model has the advantages and positive effects that: due to the adoption of the above technical scheme, two bottom plates can be formed simultaneously by means of the upper forming groove and the lower forming groove; the two notched grooves are provided for the convenience of exhausting the inside thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1It is a structural schematic diagram of the utility model.

[0011] In the figure:

[0012] 1. Front mold body 2. Boss 3. Upper molding groove

[0013] 4. Feed trough 5. Lower molding trough 6. Injection hole

[0014] 7. First discharge hole 8. Second discharge hole 9. Ejector rod

[0015] 10. Notch groove 11. Guide hole DETAILED DESCRIPTION

[0016] like Figure 1 As shown, the technical solution of the utility model is a front mold of a novel injection mold, comprising a front mold body 1, a plurality of bosses 2 are arranged on the upper and lower surfaces of the rear surface of the front mold body 1, an upper molding groove 3, a feed groove 4, and a lower molding groove 5 are arranged on the rear surface of the front mold body 1 from top to bottom, an injection hole 6 is arranged in the middle of the feed groove 4, and the injection hole 6 runs through the front mold body 1 from front to back,

[0017] The feed trough 4 is provided with a plurality of first discharge holes 7, and a plurality of second discharge holes 8 are circumferentially provided on the upper molding trough 3 and the lower molding trough 5. A storage space connected to all the first discharge holes 7 is provided inside the front mold body 1 (the storage space is not drawn in the figure), and the rear side wall of the storage space is connected to the plurality of second discharge holes 8. The raw material is led out from the first discharge hole, the storage space, and the second discharge port along the feed trough through the injection hole. A plurality of ejector rods 9 are provided in the upper molding trough 3 and the lower molding trough 5 of the front mold body 1, and a notch groove 10 is provided on the upper molding trough 3 and the lower molding trough 5. The notch groove 10 serves as a ventilation function, thereby effectively avoiding the phenomenon of product quality degradation due to the inability to discharge air in the mold.

[0018] In this embodiment, the boss 2 matches with the corresponding groove on the rear mold.

[0019] In this embodiment, guide holes 11 are provided at four corners of the front mold body 1 .

[0020] In this embodiment, the depth of the notch groove 10 is less than or equal to 0.015 mm.

[0021] In this embodiment, the front mold body 1 is arranged in cooperation with the rear mold, and the rear mold body 1 is provided with upper protrusions and lower protrusions corresponding to the upper molding grooves 3 and the lower molding grooves 5, and the rear mold body is also provided with a guide rod corresponding to the guide hole 11.

[0022] In this embodiment, the feed trough 4 comprises a transverse trough, and a plurality of vertical troughs communicating with the transverse trough are respectively arranged above and below the transverse trough.

[0023] The working process and principle of this example: When in use, after the front mold body and the rear mold are buckled together, the raw material is injected into the feed trough, the raw material enters the storage space in the mold along the injection hole, and then is discharged from the second discharge hole for molding.

[0024] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A new front mold of an injection mold, characterized in that: It includes a front mold body, and a plurality of bosses are arranged on the upper and lower rear surfaces of the front mold body. An upper molding groove, a feed groove, and a lower molding groove are arranged on the rear surface of the front mold body in sequence from top to bottom. An injection hole is arranged in the middle of the feed groove, and the injection hole passes through the front mold body front to back. A plurality of first discharge holes are arranged in the feed groove, and a plurality of second discharge holes are arranged around the upper molding groove and the lower molding groove. A storage space connected to all the first discharge holes is arranged inside the front mold body, and the rear side wall of the storage space is connected to the plurality of second discharge holes. A plurality of ejector rods are arranged in the upper molding groove and the lower molding groove of the front mold body, and a notch groove is arranged on the upper molding groove and the lower molding groove.

2. The front mold of the new injection mold according to claim 1, characterized in that: The boss matches with the corresponding groove on the rear mold.

3. The front mold of the novel injection mold according to claim 1 is characterized in that: The four corners of the front mold body are all provided with guide holes.

4. The front mold of the novel injection mold according to claim 1 is characterized in that: The depth of the notch groove is less than or equal to 0.015 mm.

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