Injection molding structure of injection molding machine

Abstract

The utility model discloses an injection molding structure of an injection molding machine, which comprises a movable mold insert and a fixed mold insert, the movable mold insert is matched with the fixed mold insert to form a mold cavity, the movable mold insert is provided with a main glue inlet communicated with the mold cavity, the fixed mold insert is provided with a runner and an auxiliary glue inlet communicated with the runner, and the auxiliary glue inlet is communicated with the mold cavity. The main glue inlet is communicated with the runner and the auxiliary glue inlet; according to the injection molding structure of the injection molding machine provided by the utility model, the auxiliary glue inlet is additionally arranged on the fixed mold insert, so that the structural strength of a molded product is enhanced, the product does not deform in the ejection process, the phenomena of bulge and vibration flying of a material port do not occur during ultrasonic cutting, the risk of product deformation is reduced, and the product quality is improved. And therefore, the yield of the product in the ultrasonic water gap cutting process is improved.

Description

Technical Field

[0001] The utility model relates to the field of injection molding equipment, in particular to an injection molding structure of an injection molding machine. Background Art

[0002] In the injection molding industry, ultrasonic sprue cutting technology is valued for its efficiency and precision. This technology uses high-frequency ultrasonic vibrations to rapidly remove excess plastic sprue material, enabling the separation of plastic parts. In the injection molding process, the sprue, also known as the "gate" or "sprue," is the connecting material formed between plastic parts during the molding process. It serves as the inlet and outlet for the flow of hot liquid material. Traditionally, sprue cleaning and cutting are not thorough, requiring sprue removal equipment to re-cut or polish the molded part.

[0003] The ultrasonic sprue cutting machine consists of a pneumatic mechanism, control system, ultrasonic generator, transducer, ultrasonic horn, and fixture. Its operating principle is to place the plastic workpiece removed from the injection molding machine into a fixed mold. Upon activation of the switch, the ultrasonic horn descends and presses against the plastic workpiece, vibrating it at high frequency. When the ultrasonic energy activates the sprue, which has a small cross-section, friction between the plastic molecules is stimulated by the high temperature. This increases stress and causes fractures in the flow path between the injection molded part and the sprue. The resulting sprue surface is smooth and flat, without any whitening, and has the same aesthetic appeal as direct injection molding, saving significant labor and improving production efficiency.

[0004] However, during the actual injection molding process, the depth of the dynamic mold insert's inlet cannot be too deep due to product thickness limitations, which can easily cause product deformation during ejection. During ultrasonic cutting, this deformation can cause the product to fly around, leading to frequent machine alarms. The ultrasonic vibration plate and vibrator can also easily cause the material mouth to stick to them, and the cut product will repeatedly have protrusions at the material mouth, resulting in defective products. These problems seriously affect production efficiency and product quality. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an injection molding structure of an injection molding machine with high product yield.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: an injection molding structure of an injection molding machine, including a movable mold insert and a fixed mold insert, the movable mold insert cooperates with the fixed mold insert to form a mold cavity, the movable mold insert has a main glue inlet connected to the mold cavity, the fixed mold insert has a flow channel and a secondary glue inlet connected to the flow channel, the secondary glue inlet is connected to the mold cavity, and the main glue inlet is connected to the flow channel and the secondary glue inlet.

[0007] Furthermore, the fixed mold insert is also provided with an ultrasonic vibration point groove, and the ultrasonic vibration point groove is communicated with the flow channel.

[0008] Furthermore, the depth of the ultrasonic vibration point groove is 0.05mm-0.15mm.

[0009] Furthermore, the depth of the ultrasonic vibration point groove is 0.1 mm.

[0010] Furthermore, the shape of the ultrasonic vibration point groove is circular, elliptical or polygonal.

[0011] Furthermore, the depth of the secondary glue inlet is 0.05mm-0.15mm.

[0012] Furthermore, the depth of the secondary glue inlet is 0.1 mm.

[0013] Furthermore, the flow channel is located on the side of the mold cavity.

[0014] Furthermore, the depth of the main glue inlet is 0.05mm-0.15mm.

[0015] Furthermore, the depth of the main glue inlet is 0.1 mm.

[0016] The beneficial effects of the present invention are as follows: the injection molding structure of the injection molding machine provided by the present invention enhances the structural strength of the product after molding by adding a secondary glue inlet on the fixed mold insert, the product will not be deformed during the ejection process, and the material mouth will no longer bulge and vibrate during ultrasonic cutting, thereby reducing the risk of product deformation and improving the product yield rate during the ultrasonic water outlet cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the fixed mold insert of Example 1 of the present utility model;

[0018] Figure 2 This is a schematic structural diagram of the movable mold insert in Example 1 of the present utility model.

[0019] Description of labels:

[0020] 1. Fixed mold insert; 11. Runner; 12. Secondary glue inlet; 13. Ultrasonic vibration point slot; 2. Moving mold insert; 21. Main glue inlet. DETAILED DESCRIPTION

[0021] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0022] Please refer to Figure 1 as well as Figure 2, an injection molding structure of an injection molding machine, including a movable mold insert 2 and a fixed mold insert 1, the movable mold insert 2 cooperates with the fixed mold insert 1 to form a mold cavity, the movable mold insert 2 has a main glue inlet 21 connected to the mold cavity, the fixed mold insert 1 has a flow channel 11 and a secondary glue inlet 12 connected to the flow channel 11, the secondary glue inlet 12 is connected to the mold cavity, and the main glue inlet 21 is connected to the flow channel 11 and the secondary glue inlet 12.

[0023] From the above description, it can be seen that the beneficial effects of the present invention are: by adding a secondary glue inlet 12 to the fixed mold insert 1, the structural strength of the product after molding is enhanced, the product will not be deformed during the ejection process, and the material mouth will no longer bulge and vibrate during ultrasonic cutting, thereby reducing the risk of product deformation and improving the yield rate of the product during the ultrasonic water cutting process.

[0024] Furthermore, the fixed mold insert 1 is further provided with an ultrasonic vibration point groove 13 , and the ultrasonic vibration point groove 13 is communicated with the flow channel 11 .

[0025] From the above description, it can be seen that the ultrasonic vibration point groove 13 is added to the fixed mold insert 1, so that after the product is formed, a protrusion that can directly contact the ultrasonic vibration head can be generated at the water outlet position to be cut, thereby improving the efficiency and accuracy of water outlet cutting.

[0026] Furthermore, the depth of the ultrasonic vibration point groove 13 is 0.05mm-0.15mm.

[0027] From the above description, it can be seen that the depth of the ultrasonic vibration point groove 13 is set in the range of 0.05mm-0.15mm. This depth range can ensure the effective transmission of ultrasonic energy while avoiding excessive wear on the mold.

[0028] Furthermore, the depth of the ultrasonic vibration point groove 13 is 0.1 mm.

[0029] As can be seen from the above description, the depth of the ultrasonic vibration point groove 13 is precisely set to 0.1 mm, which is an optimized depth that can maximize the transmission efficiency of ultrasonic energy while maintaining the durability of the mold.

[0030] Furthermore, the shape of the ultrasonic vibration point groove 13 is circular, elliptical or polygonal.

[0031] As can be seen from the above description, the shape of the ultrasonic vibration point slot 13 is designed to be circular, elliptical or polygonal. Such a design can be adjusted according to different needs and mold designs to adapt to different shapes and sizes of injection molded products.

[0032] Furthermore, the depth of the secondary glue inlet 12 is 0.05mm-0.15mm.

[0033] From the above description, it can be seen that the depth of the secondary glue inlet 12 is set in the range of 0.05mm-0.15mm. This depth range helps to control the flow of material, reduce material waste, and ensure uniform distribution of material during the injection molding process.

[0034] Furthermore, the depth of the secondary glue inlet 12 is 0.1 mm.

[0035] From the above description, it can be seen that the depth of the secondary glue inlet 12 is precisely set to 0.1 mm. This depth is optimized to ensure the stability of material flow and the molding quality of the product.

[0036] Furthermore, the flow channel 11 is located on the side of the mold cavity.

[0037] As can be seen from the above description, the flow channel 11 is located on the side of the mold cavity. This layout helps to reduce the resistance during the material flow process, improve the injection molding efficiency, and help reduce defective products after product molding.

[0038] Furthermore, the depth of the main glue inlet 21 is 0.05mm-0.15mm.

[0039] As can be seen from the above description, the depth of the main glue inlet 21 is set within the range of 0.05mm-0.15mm. This depth range helps to control the material flow, reduce material waste, and ensure uniform distribution of the material during the injection molding process.

[0040] Furthermore, the depth of the main glue inlet 21 is 0.1 mm.

[0041] As can be seen from the above description, the depth of the main glue inlet 21 is precisely set to 0.1 mm. This depth is optimized to ensure the stability of material flow and the molding quality of the product, while reducing defective products caused by uneven material flow.

[0042] Please refer to Figure 1 as well as Figure 2 , Embodiment 1 of the present utility model is: an injection molding structure of an injection molding machine, comprising a movable mold insert 2 and a fixed mold insert 1, the movable mold insert 2 cooperates with the fixed mold insert 1 to form a mold cavity, the movable mold insert 2 has a main glue inlet 21 connected to the mold cavity, the fixed mold insert 1 has a flow channel 11 and a secondary glue inlet 12 connected to the flow channel 11, the secondary glue inlet 12 is connected to the mold cavity, and the main glue inlet 21 is connected to the flow channel 11 and the secondary glue inlet 12; it can be understood that by adding the secondary glue inlet 12 to the fixed mold insert 1, the structural strength of the product after molding is enhanced, the product will not be deformed during the ejection process, and the material port will no longer bulge and vibrate during ultrasonic cutting, which reduces the risk of product deformation and thereby improves the yield rate of the product during ultrasonic watertight cutting process.

[0043] Specifically, the movable mold insert 2 is installed on the movable mold core of the injection molding machine, and the fixed mold insert 1 is installed on the movable mold core of the injection molding machine; the fixed mold insert 1 is also provided with an ultrasonic vibration point groove 13, and the ultrasonic vibration point groove 13 is connected to the flow channel 11. It can be understood that by adding the ultrasonic vibration point groove 13 to the fixed mold insert 1, a protrusion that can directly contact the ultrasonic vibration head can be generated at the water outlet position to be cut after the product is formed, thereby improving the efficiency and accuracy of water outlet cutting; optionally, the depth of the ultrasonic vibration point groove 13 is 0.05mm-0.15mm, and this depth range can ensure the effective transmission of ultrasonic energy while avoiding excessive wear on the mold; preferably, the depth of the ultrasonic vibration point groove 13 is 0.1mm, which is an optimized depth that can maximize the transmission efficiency of ultrasonic energy while maintaining the durability of the mold.

[0044] Optionally, the shape of the ultrasonic vibration point slot 13 is circular, elliptical or polygonal. Such a design can be adjusted according to different requirements and mold designs to adapt to different shapes and sizes of injection molded products.

[0045] Optionally, the depth of the auxiliary glue inlet 12 is 0.05mm-0.15mm. This depth range helps to control material flow, reduce material waste, and ensure uniform distribution of material during the injection molding process. Specifically in this embodiment, the depth of the auxiliary glue inlet 12 is 0.1mm. This depth is optimized to ensure the stability of material flow and the molding quality of the product.

[0046] Optionally, the depth of the main glue inlet 21 is 0.05mm-0.15mm. This depth range helps to control material flow, reduce material waste, and ensure uniform distribution of material during the injection molding process. In this embodiment, the depth of the main glue inlet 21 is 0.1mm. This depth is optimized to ensure the stability of material flow and the molding quality of the product, while reducing defective products caused by uneven material flow.

[0047] In this embodiment, the flow channel 11 is located on the side of the mold cavity. This layout helps to reduce the resistance during material flow, improve injection molding efficiency, and help reduce defective products after product molding; specifically, the flow channel 11 is set on the longer side of the mold cavity.

[0048] To sum up, the injection molding structure of the injection molding machine provided by the utility model enhances the structural strength of the product after molding by adding a secondary glue inlet on the fixed mold insert. The product will not be deformed during the ejection process, and the material mouth will no longer bulge and vibrate during ultrasonic cutting, thereby reducing the risk of product deformation and improving the product yield rate during the ultrasonic water cutting process.

[0049] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. An injection molding structure of an injection molding machine, comprising a movable mold insert and a fixed mold insert, wherein the movable mold insert cooperates with the fixed mold insert to form a mold cavity, characterized in that: The movable mold insert has a main glue inlet connected to the mold cavity, the fixed mold insert has a flow channel and a secondary glue inlet connected to the flow channel, the secondary glue inlet is connected to the mold cavity, and the main glue inlet is connected to the flow channel and the secondary glue inlet.

2. The injection molding structure of the injection molding machine according to claim 1, characterized in that: The fixed mold insert is further provided with an ultrasonic vibration point groove, and the ultrasonic vibration point groove is communicated with the flow channel.

3. The injection molding structure of the injection molding machine according to claim 2, characterized in that: The depth of the ultrasonic vibration point groove is 0.05mm-0.15mm.

4. The injection molding structure of the injection molding machine according to claim 3, characterized in that: The depth of the ultrasonic vibration point groove is 0.1 mm.

5. The injection molding structure of the injection molding machine according to claim 2, characterized in that: The shape of the ultrasonic vibration point groove is circular, elliptical or polygonal.

6. The injection molding structure of the injection molding machine according to claim 1, characterized in that: The depth of the secondary glue inlet is 0.05mm-0.15mm.

7. The injection molding structure of the injection molding machine according to claim 6, characterized in that: The depth of the secondary glue inlet is 0.1 mm.

8. The injection molding structure of the injection molding machine according to claim 1, characterized in that: The flow channel is located on the side of the mold cavity.

9. The injection molding structure of the injection molding machine according to claim 1, characterized in that: The depth of the main glue inlet is 0.05mm-0.15mm.

10. The injection molding structure of the injection molding machine according to claim 9, characterized in that: The depth of the main glue inlet is 0.1 mm.

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