Multicolor injection mold

Abstract

The utility model discloses a multicolor injection mold which comprises an upper mold and a lower mold, a first molding groove is arranged on the lower mold, a first molding bulge is arranged on the upper mold, a first molding cavity is formed between the first molding bulge and the first molding groove, a first injection molding channel is arranged on the upper mold or the lower mold, and one end of the first injection molding channel is connected with the first molding cavity. A first forming groove is formed in the lower mold, a second forming groove is formed in the groove bottom of the first forming groove and filled with a second forming protrusion, a driving sliding block is connected to the lower mold in a sliding mode, a linear reciprocating motion mechanism is arranged on the driving sliding block, the second forming protrusion is arranged on the driving sliding block, and a flow dividing injection molding channel formed in the lower mold is arranged outside the second forming groove. A plurality of split-flow injection openings with one ends connected with the split-flow injection molding channel and the other ends connected with the interior of the second forming groove are distributed on the periphery of the split-flow injection molding channel, and a second injection molding channel is formed in the lower mold. The injection mold has the characteristics of double-color injection molding and efficient molding, and is complete in overall function and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould manufacturing technical field more specifically, it relates to a multicolor injection mold. BACKGROUND

[0002] Although the double -color injection mould increases the difficulty of mould manufacturing, but can simplify product forming procedure, improves production efficiency. UTILITY MODEL CONTENTS

[0003] The utility model discloses a kind of multicolor injection molds, which has the characteristics of double-color injection molding and efficient forming.

[0004] To solve the above technical problem, the utility model aims at realizing as follows: a kind of multicolor injection mold involved in the utility model, including upper die and lower die, first forming groove is equipped on the lower die, first forming convex is equipped on the upper die and matches the first forming groove, first forming cavity is formed between the first forming convex and the first forming groove, first injection channel is opened in the upper die or lower die and is connected with first forming cavity at one end, the groove bottom of the first forming groove is equipped with second forming groove, second forming convex is filled in second forming groove, driving slider is slidably connected on the lower die, linear reciprocating mechanism that controls its movement direction close to or away from the second forming groove is equipped on driving slider, the second forming convex is equipped on driving slider, a shunt injection channel is equipped on the lower die, and a plurality of shunt injection ports, which are connected with the shunt injection channel at one end and the inside of the second forming groove at the other end, are arranged around the shunt injection channel, and second injection channel is opened in the lower die and is connected with the shunt injection channel at one end.

[0005] The utility model is further provided as follows: the linear reciprocating mechanism includes fixed plate arranged below driving slider, first spring pin is arranged on the fixed plate, second spring pin is arranged on driving slider, and tensile spring is connected between the first spring pin and the second spring pin, the end of driving slider, which is not connected with second forming convex, has driven guide slope surface, driving block, which is laterally translated, is arranged between the fixed plate and driving slider, cylinder, which controls horizontal movement, is arranged on the driving block, the cylinder is arranged on the lower die, and the driving block has driving guide slope surface, which is closely attached to driven guide slope surface and relatively slides.

[0006] The utility model is further provided as follows: linear guide rail, which extends upward and downward, is arranged on the lower die, linear slider is slidably connected on the linear guide rail, and driving slider is fixedly connected on the linear slider.

[0007] The utility model is further provided as follows: the first injection channel is arranged on the upper die.

[0008] The utility model further sets up: the interval included angle is equal between two adjacent the shunt injection gate.

[0009] To sum up, the utility model has the following beneficial effects: the utility model relates to the multicolor injection mold, through first using first forming cavity injection forming product main part, then by linear reciprocating movement mechanism control second forming convex make way, to second forming recess is exposed, is used for second injection forming, double -color injection molding, product forming efficiency is high, overall function is perfect, practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is the overall structure schematic diagram of the utility model;

[0011] Fig. 2 It is the partial structure schematic diagram of the utility model;

[0012] Fig. 3 It is the local structure schematic diagram of the utility model. DETAILED DESCRIPTION

[0013] In order to make those skilled in the art better understand the technical scheme of the utility model, the preferred implementation scheme of the utility model is described below in combination with specific implementation examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, and are not the limitation of the utility model patent claim. Based on the examples in the utility model, all other examples obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0014] The utility model is further illustrated below in combination with the drawings and preferred examples.

[0015] Example 1

[0016] Referring to Figs. 1-3As shown, the multi-color injection mold of the present embodiment comprises an upper mold 1 and a lower mold 2, the lower mold 2 is provided with a first forming groove 3, the upper mold 1 is provided with a first forming protrusion 4 matching the first forming groove, a first forming cavity (not marked) is formed between the first forming protrusion 4 and the first forming groove 3, a first injection channel 5 is formed on the upper mold 1 and connected to the first forming cavity at one end, the bottom of the first forming groove 3 is provided with a second forming groove 6, the second forming groove 6 is filled with a second forming protrusion 7, the lower mold 2 is slidably connected with a driving slider 8, the driving slider 8 is provided with a linear reciprocating mechanism for controlling the movement of the driving slider 8 towards or away from the second forming groove, the second forming protrusion 7 is arranged on the driving slider 8, a shunt injection channel 9 is arranged on the lower mold outside the second forming groove 6, a plurality of shunt injection ports 10 are arranged on the shunt injection channel 9, one end of each shunt injection port 10 is connected to the shunt injection channel 9, and the other end is connected to the inside of the second forming groove 6, and a second injection channel 11 is formed on the lower mold 2 and connected to the shunt injection channel 9 at one end.

[0017] Further, the linear reciprocating mechanism comprises a fixed plate 12 arranged below the driving slider 8, the fixed plate 12 is provided with a first spring pin 13, the driving slider 8 is provided with a second spring pin 14, and the second spring pin 14 is connected with the first spring pin 13 through a tension spring 15, one end of the driving slider 8 not connected with the second forming protrusion has a driven guide slope 801, a driving block 16 for lateral translation is arranged between the fixed plate 12 and the driving slider 8, the driving block 16 is provided with a cylinder 17 for controlling the horizontal movement of the driving block 16, the cylinder 17 is arranged on the lower mold 2, and the driving block 16 has a driving guide slope 1601 abutting against the driven guide slope and sliding relative to the driven guide slope.

[0018] Further, the interval between adjacent two shunt injection ports 10 is equal.

[0019] In the present embodiment, first, the cylinder 17 is in an elongated state, the driving slider 8 is located in an upper position, and the second forming protrusion 7 is embedded in the second forming groove 6. At this time, the first injection channel 5 is used to form a product main structure in the first forming cavity, then the cylinder 17 is controlled to be shortened, the driving block 16 is laterally translated, and under the action of the spring tension, the driving slider 8 carries the second forming protrusion 7 to move downward, the second forming protrusion 7 is separated from the second forming groove 6, and the second forming groove 6 is exposed to be used as a second forming cavity. At this time, the second injection channel 11 is used to form a secondary injection structure on the product main structure.

[0020] Among them, through the arrangement of the driving slider 8 and the laterally arranged driving block 16, the power source can be transversely arranged, the overall height of the mold is reduced, and the disassembly and assembly are facilitated.

[0021] Wherein, by the peripheral distribution of the injection gate 10, the raw material can be injected into the second forming groove 6 faster.

[0022] Wherein, by the setting of the tension spring 15, the elastic force is provided.

[0023] Embodiment 2

[0024] Referring to Figs. 1-3 The lower mold 2 is provided with a linear guide rail 18 extending upward and downward, and a linear sliding block (not shown) is slidably connected to the linear guide rail 18. The driving sliding block 8 is fixedly connected to the linear sliding block.

[0025] In the present embodiment, the linear guide rail 18 cooperates with the linear sliding block to guide the sliding of the driving sliding block 8 relative to the lower mold 2.

[0026] The multi-color injection mold has the advantages that the product main body part is first obtained by using the first forming cavity for injection molding, then the second forming protrusion is controlled to be retracted by the linear reciprocating mechanism, and the second forming groove is exposed for the second injection molding, so that the product is formed by double-color injection molding, the forming efficiency is high, the overall function is perfect, and the practicality is strong.

[0027] Unless otherwise specified and limited, in the present application, the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the actual indicated orientation or positional relationship, and are only used for the convenience of describing the present application and simplifying the description, and therefore the terms used for describing the orientation or positional relationship in the present application are only used for exemplary description, and cannot be understood as a limitation on the present patent. For ordinary skilled persons in the art, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.

[0028] Unless otherwise specified and limited, in the present application, the terms "setting", "connection" and "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between the two elements. For ordinary skilled persons in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0029] The preferred embodiments of the present application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative labor based on the concept of the present application. Therefore, any technical solutions obtained by logical analysis, reasoning or limited experiments based on the existing technology within the concept of the present application shall be within the protection scope defined by the claims.

Claims

1. A multi-color injection mold, comprising an upper mold and a lower mold, the lower mold being provided with a first molding groove, the upper mold being provided with a first molding protrusion matching the first molding groove, a first molding cavity being formed between the first molding protrusion and the first molding groove, and a first injection channel being formed in the upper mold or the lower mold and connected to the first molding cavity at one end, characterized in that: The bottom of the first forming groove is provided with a second forming groove, and a second forming convex is filled in the second forming groove.

2. The multi-color injection mold of claim 1, wherein: The linear reciprocating mechanism comprises a fixed plate arranged below the driving slider, and the fixed plate is provided with a first spring pin.

3. The multi-color injection mold of claim 1 or 2, wherein: The driving slider is provided with a second spring pin, and a tension spring is connected between the second spring pin and the first spring pin.

4. The multi-color injection mold of claim 3, wherein: The driving slider is provided with a driven guide slope at one end not connected with the second forming convex.

5. The multicolor injection mold of claim 1, wherein: The fixed plate and the driving slider are provided with a driving block for lateral translation. The driving block is provided with a cylinder for controlling horizontal movement. The lower mold is provided with a linear guide rail extending upward and downward. The linear guide rail is provided with a linear slider. The first injection channel is arranged on the upper mold. The interval angle between adjacent two shunt injection ports is equal.

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