Injection mold with label positioning function

Abstract

The utility model discloses an injection mold with paper mark positioning function, including former, the bottom of former is provided with cavity, the bottom of former is provided with back mould, it still includes: feeding assembly, the feeding assembly includes the multiple die nozzles of central symmetry setting in the top of former, the bottom of die nozzle is provided with extension lug, the extension lug is connected in the inside of cavity, the horizontal longitudinal cross section of extension lug is set up as isosceles trapezoid, and the extension lug is used for pressing paper mark. The utility model discloses through the design of extension lug, when using, first, the paper mark of making good is put into the specified position of cavity with machine hand, and passes through the hole of extension lug and is inserted into the hole of paper mark center, makes extension lug and is stuck in the hole of paper mark center, carries out the positioning of paper mark, avoids the situation that paper mark moves when injection molding and produces, thereby avoids the waste production caused by paper mark movement.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold with a label positioning function. Background Technology

[0002] Injection molds are tools used for plastic injection molding and are widely used in the manufacture of various plastic products. Their working principle is to heat and melt plastic granules and then inject them into the mold. After cooling, the plastic product is formed into the desired shape. Before injection molding, a label is placed into the mold to transmit information.

[0003] In traditional injection molding, the prepared label is first placed into the designated position in the mold cavity by a robotic arm, and then the injection molding machine closes the mold to form the product. Finally, the cooled product is removed from the mold. However, after the label is placed inside the mold, the mold will shake when it is hit by other objects. The label inside the mold will be displaced as the equipment shakes, resulting in defective products due to the displacement of the label. Utility Model Content

[0004] The purpose of this invention is to provide an injection mold with a label positioning function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an injection mold with label positioning function, comprising a front mold, a cavity at the bottom of the front mold, a rear mold at the bottom of the front mold, and further comprising:

[0006] The feeding assembly includes a plurality of die nozzles symmetrically arranged on the top of the front die. The bottom of each die nozzle is provided with an extension protrusion. The extension protrusion is inserted into the interior of the cavity. The horizontal and longitudinal cross sections of the extension protrusion are set as isosceles trapezoids. The extension protrusion is used to press the label paper.

[0007] Preferably, the die nozzle has a feed inlet in the middle, and the extension protrusion has an extension hole in the middle, with the feed inlet and the extension hole communicating with each other.

[0008] Preferably, the top center of the front mold has multiple through holes symmetrically opened, and the mold nozzle is inserted and connected inside the through holes.

[0009] Preferably, the horizontal longitudinal section of the insertion hole is set to a staircase shape, and the insertion hole is used to restrict the movement of the die nozzle.

[0010] Preferably, the top of the rear mold has a connecting groove, and the front mold is inserted into the connecting groove.

[0011] Preferably, a sleeve is inserted into the interior of the cavity, and an insert is inserted into the middle of the sleeve.

[0012] Preferably, a push plate is fitted in the middle of the insert, and both the push plate and the insert are inserted into the inside of the connecting groove, and the insert is inserted into the inner wall at the bottom of the connecting groove.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] This invention utilizes an extended protrusion design. During use, the prepared label is first placed into the designated position in the mold cavity by a robotic arm. The extended protrusion then penetrates into the hole in the center of the label, positioning the label and preventing it from shifting during injection molding. This avoids the generation of defective products due to label movement. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a top view of the structure of this utility model.

[0017] Figure 3 This is a side sectional view of the present invention.

[0018] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A.

[0019] In the figure: 1. Front mold; 101. Cavity; 102. Insertion hole; 2. Rear mold; 201. Connecting groove; 3. Feeding assembly; 301. Mold nozzle; 302. Feed port; 303. Extension protrusion; 304. Extension hole; 4. Push plate; 5. Insert; 6. Insert. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model provides, for example Figures 1-4 The injection mold shown includes a label positioning function, comprising a front mold 1, a cavity 101 at the bottom of the front mold 1, a rear mold 2 at the bottom of the front mold 1, and further comprising:

[0022] The feeding assembly 3 includes a plurality of die nozzles 301 centrally symmetrically arranged on the top of the front mold 1. The bottom of the die nozzle 301 is provided with an extension protrusion 303. The extension protrusion 303 is inserted and connected inside the cavity 101. The horizontal and longitudinal cross sections of the extension protrusion 303 are set as isosceles trapezoids. The extension protrusion 303 is used to press the label paper.

[0023] It should be noted that the front mold 1 and the rear mold 2 are the two core components of an injection mold. They work together to mold plastic products. The front mold 1 includes the front shape of the product and is designed with an infeed assembly 3 to guide the molten plastic into the mold cavity 101. The rear mold 2 is the movable part of the mold, mounted on the moving platen of the injection molding machine. The main function of the rear mold 2 is to define the internal shape of the product and the demolding process of the molded product. In use, the front mold 1 and the rear mold 2 are first joined together, and then the molten plastic is injected through the infeed assembly 3. The product is formed between the front mold 1 and the rear mold 2. After cooling, the front mold 1 and the rear mold 2 are separated, and the product is removed from between them. During the product injection molding process, the label paper plays a role in information transmission. A hole adapted to the extension protrusion 303 is opened in the middle of the label paper. In use, the label paper is placed into the designated position of the cavity 101 by the robot arm, and the extension protrusion 303 is inserted into the hole opened in the center of the label paper, so that the extension protrusion 303 is stuck in the hole in the center of the label paper to position the label paper and prevent the label paper from moving during injection molding, thereby avoiding the generation of waste products due to the movement of the label paper.

[0024] Specifically, the die nozzle 301 has a feed inlet 302 in the middle, and the extension protrusion 303 has an extension hole 304 in the middle, with the feed inlet 302 and the extension hole 304 communicating with each other.

[0025] Specifically, the top center of the front mold 1 is symmetrically provided with multiple through holes 102, and the die nozzle 301 is inserted and connected inside the through holes 102. The horizontal longitudinal section of the through holes 102 is set as a staircase shape, and the through holes 102 are used to restrict the movement of the die nozzle 301.

[0026] It should be noted that the nozzle 301 plays a crucial role in the injection molding process. It is the part that connects the injection molding machine nozzle and the mold cavity 101 and is the path for the flow of molten plastic. The horizontal longitudinal section of the through hole 102 is stair-shaped. During use, the nozzle 301 is inserted into the through hole 102 and supported by the stair-shaped through hole 102. When the output end of the injection molding machine comes into contact with the nozzle 301, the through hole 102 supports the nozzle 301 and prevents the nozzle 301 from moving downward.

[0027] Specifically, the top of the rear mold 2 is provided with a connecting groove 201, and the front mold 1 is inserted and connected inside the connecting groove 201.

[0028] It should be noted that the connecting groove 201 is adapted to the bottom of the front mold 1, so that the front mold 1 can be inserted into the interior of the connecting groove 201.

[0029] Specifically, a sleeve 5 is inserted and connected inside the cavity 101, an insert 6 is inserted and connected in the middle of the sleeve 5, a push plate 4 is fitted in the middle of the sleeve 5, the push plate 4 and the sleeve 5 are both inserted and connected inside the connecting groove 201, and the insert 6 is inserted and connected to the inner wall at the bottom of the connecting groove 201.

[0030] It should be noted that by using insert 6 and insert 5, complex parts can be processed separately and then embedded into the mold body. In injection molds, some parts have complex geometric shapes, and it is difficult to process these shapes directly on the mold body. Therefore, the design of insert 6 and insert 5 simplifies the overall processing of the mold. When the injection mold with insert 6 and insert 5 is damaged after long-term use, insert 6 and insert 5 can be replaced directly without replacing the entire mold.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An injection mold with label positioning function, comprising a front mold (1), wherein a cavity (101) is formed at the bottom of the front mold (1), and a rear mold (2) is provided at the bottom of the front mold (1), characterized in that, Also includes: The feeding assembly (3) includes a plurality of die nozzles (301) centrally symmetrically arranged on the top of the front mold (1). The bottom of the die nozzle (301) is provided with an extension protrusion (303). The extension protrusion (303) is inserted and connected inside the cavity (101). The horizontal and longitudinal cross sections of the extension protrusion (303) are set as isosceles trapezoids. The extension protrusion (303) is used to press the label paper.

2. The injection mold with label positioning function according to claim 1, characterized in that, The die nozzle (301) has a feed inlet (302) in the middle, and the extension protrusion (303) has an extension hole (304) in the middle, and the feed inlet (302) and the extension hole (304) are interconnected.

3. The injection mold with label positioning function according to claim 1, characterized in that, The front mold (1) has multiple through holes (102) symmetrically opened at the top center, and the mold nozzle (301) is inserted into the inside of the through holes (102).

4. The injection mold with label positioning function according to claim 3, characterized in that, The horizontal longitudinal section of the insertion hole (102) is set in a staircase shape, and the insertion hole (102) is used to restrict the movement of the die nozzle (301).

5. An injection mold with label positioning function according to claim 1, characterized in that, The rear mold (2) has a connecting groove (201) on its top, and the front mold (1) is inserted into the connecting groove (201).

6. The injection mold with label positioning function according to claim 1, characterized in that, The cavity (101) is internally connected to a sleeve (5), and the middle part of the sleeve (5) is internally connected to an insert (6).

7. An injection mold with label positioning function according to claim 6, characterized in that, The insert (5) is fitted with a push plate (4) in the middle. The push plate (4) and the insert (5) are both inserted into the inside of the connecting groove (201). The insert (6) is inserted into the inner wall at the bottom of the connecting groove (201).

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