A molding die fixing mechanism

Abstract

The utility model discloses a forming die fixing mechanism, including setting on injection molding machine die, both sides of die all are provided with fixed part symmetry, a plurality of fixed part one end and the die between the place of lamination are provided with fixed mechanism, the fixed mechanism is by zigzag antiskid silica gel spare, zigzag recess, zigzag boss is formed, the zigzag recess is set up in both sides surface of die, the utility model discloses the fixed mechanism is designed in view of " injection molding machine vibration leads to bolt loosening, and the problem of plastic side thrust causes die misplacement", the fixed effect of die is optimized from multidimension, and the fixed part is embedded in the inside clamping of zigzag recess, and the zigzag clamping will be scattered to a plurality of " tooth surface contact point " with clamping force, make the stress area increase significantly, and the local pressure reduces greatly, and the contact surface of protection fixed part, die, maintains long -term positioning datum accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of mold fixing technology, specifically relating to a molding mold fixing mechanism. Background Technology

[0002] A molding die is a tool used to process materials (such as plastics, metals, and rubber) into specific shapes through methods such as pressing, casting, or injection molding. It is widely used in industrial production. When a molding die is in operation, it is installed in an injection molding machine. The molding die fixing mechanism is a structure used to fix the molding die on the injection molding machine.

[0003] When existing molding dies are installed on injection molding machines, the high-frequency vibration of the injection molding machine can cause bolts to loosen, the clamping force to drop rapidly over time, and the lateral thrust generated by the flow of molten plastic in the molding die cavity. Currently, the single bolt clamping method cannot effectively limit the lateral sliding of the mold, which can easily lead to cavity misalignment, core displacement, and product defects. Therefore, this utility model proposes a molding die fixing mechanism. Utility Model Content

[0004] The purpose of this utility model is to provide a molding die fixing mechanism to solve the problem mentioned in the background art, where the molding die is only fixed to the injection molding machine by bolt clamping, which poses a risk of displacement and affects product processing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a molding die fixing mechanism, comprising a die mounted on an injection molding machine, wherein fixing members are symmetrically arranged on both sides of the die, and a fixing mechanism is provided between one end of each fixing member and the contact point of the die, the fixing mechanism being composed of a serrated anti-slip silicone part, a serrated groove, and a serrated protrusion, wherein the serrated groove is formed on both sides of the die, the serrated anti-slip silicone part is fixed to the inner side of the serrated groove, and the serrated protrusion is disposed at the contact point between the fixing member and the serrated anti-slip silicone part and is located at the bottom end of the fixing member.

[0006] Preferably, the bottom surface of the serrated anti-slip silicone part is in contact with the inner side of the serrated groove, and the surface of the serrated protrusion is in contact with the surface of the serrated anti-slip silicone part.

[0007] Preferably, the surface of the serrated protrusion is adapted to the surface of the serrated anti-slip silicone part.

[0008] Preferably, the width of the fastener is adapted to the width of the serrated groove.

[0009] Preferably, guide grooves are provided on both sides of the serrated groove, and the cross-section of the guide grooves is inclined.

[0010] Preferably, the other end of the fixing member is in contact with the surface of the injection molding machine, and a base is provided in the recessed part of the surface of the fixing member. An installation component is provided on the inner side of the base and the inner side of the fixing member. The installation component consists of a washer, a nut and a stud. The washer is provided on the surface of the base, the nut is provided on the surface of the washer, and the stud passes through the nut, washer, base and fixing member to the inner side of the mold.

[0011] Preferably, the mold is equipped with shafts around its perimeter and on the injection molding machine.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model's fixing mechanism addresses the problem of "bolt loosening caused by injection molding machine vibration and mold misalignment caused by plastic lateral thrust." It optimizes the mold fixing effect from multiple dimensions. The fixing component is embedded in the serrated groove and engages, and the serrated engagement disperses the clamping force to multiple "tooth contact points," significantly increasing the force-bearing area and greatly reducing local pressure. This protects the contact surface between the fixing component and the mold, maintaining long-term positioning accuracy. Furthermore, the serrated engagement, through "mechanical interlocking between teeth," forms a limiting effect similar to "gear meshing," effectively resisting horizontal lateral thrust, limiting lateral displacement of the mold, and ensuring the alignment accuracy of the cavity and core. This prevents defects such as material shortages, weld lines, and dimensional deviations in the product. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Enlarged schematic diagram of region A in the diagram;

[0016] Figure 3 This is a schematic diagram of the sawtooth groove structure of this utility model;

[0017] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of region B in the diagram;

[0018] In the diagram: 1. Injection molding machine; 2. Shaft; 3. Mold; 30. Fixing mechanism; 31. Guide groove; 301. Serrated anti-slip silicone part; 302. Serrated groove; 4. Fixing part; 41. Base; 42. Mounting assembly. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1 to 4 This utility model provides a technical solution: a molding die fixing mechanism, including a mold 3 mounted on an injection molding machine 1. Fixing members 4 are symmetrically arranged on both sides of the mold 3. A fixing mechanism 30 is provided between one end of each fixing member 4 and the contact point between the fixing member 4 and the mold 3. Through the fixing mechanism 30, a serrated anti-slip silicone part 301 and a serrated groove 302 engage with each other. The serrated structure increases friction through "concave-convex interlocking," forming a mechanical limit to prevent horizontal sliding of the mold. The fixing mechanism 30 consists of a serrated anti-slip silicone part 301, a serrated groove 302, and a serrated protrusion. The serrated groove 302 is open... The serrated anti-slip silicone parts 301 are fixed to the inner side of the serrated grooves 302 on both sides of the mold 3. The serrated protrusions are located at the contact points between the fixing part 4 and the serrated anti-slip silicone parts 301 and at the bottom end of the fixing part 4. The fixing mechanism 30 designed in this utility model addresses the problem of "bolt loosening caused by injection molding machine vibration and mold misalignment caused by plastic side thrust". It optimizes the fixing effect of the mold 3 from multiple dimensions. The fixing part 4 is embedded in the inner side of the serrated grooves 302 and engages. The serrated engagement disperses the clamping force to multiple "tooth surface contact points", which significantly increases the force-bearing area and greatly reduces the local pressure, thus protecting the fixing part. 4. The contact surface of mold 3 maintains long-term positioning accuracy, and the serrated engagement, through "mechanical interlocking of teeth," forms a limiting effect similar to "gear meshing," effectively resisting horizontal lateral thrust, limiting the lateral displacement of mold 3, and ensuring the alignment accuracy of the cavity and core. This avoids defects such as material shortages, weld lines, and dimensional deviations in the product. The bottom surface of the serrated anti-slip silicone part 301 is in contact with the inner side of the serrated groove 302, and the surface of the serrated protrusion is in contact with the surface of the serrated anti-slip silicone part 301. The width of the fastener 4 is matched with the width of the serrated groove 302. The other end of the fastener 4 is in contact with the surface of the injection molding machine 1. A base 41 is provided in the recessed part of the surface of the fastener 4. An installation component 42 is provided on the inner side of the base 41 and the inner side of the fastener 4. The installation component 42 consists of a washer, a nut and a stud. The washer is provided on the surface of the base 41, the nut is provided on the surface of the washer, and the stud passes through the nut, washer, base 41 and fastener 4 to the inner side of the mold 3. The fastener 4 is fixed by the base 41 and the installation component 42. A shaft 2 is installed around the mold 3 and on the injection molding machine 1.

[0021] In this embodiment, preferably, guide grooves 31 are provided on both sides of the serrated groove 302. The cross-section of the guide groove 31 is inclined. The guide groove 31 plays a guiding role in the process of the fixing member 4 being inserted into the inner side of the serrated groove 302.

[0022] The working principle and usage process of this utility model are as follows: The mold 3 is attached to the installation point of the injection molding machine 1 using external hoisting equipment. Then, multiple fixing parts 4 are installed on both sides of the mold 3 in sequence. When installing the fixing parts 4, one end of the fixing part 4 is inserted into the inner side of the serrated groove 302, and the serrated protrusion at the bottom of the fixing part 4 is attached to the surface of the serrated anti-slip silicone part 301. Through the fixing mechanism 30, the serrated anti-slip silicone part 301 and the serrated groove 302 are interlocked. The serrated structure increases the friction through "concave-convex interlocking" to form a mechanical limit and prevent the mold from sliding horizontally. Then, the base 41, the washer, and the nut are put on the screw in sequence. By tightening the nut, the mold 3 is fixed on the injection molding machine 1, and the installation of the mold 3 is completed.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding die fixing mechanism, comprising a die (3) mounted on an injection molding machine (1), characterized in that: The mold (3) is symmetrically provided with fixing parts (4) on both sides. A fixing mechanism (30) is provided between one end of the fixing parts (4) and the contact point of the mold (3). The fixing mechanism (30) is composed of a serrated anti-slip silicone part (301), a serrated groove (302), and a serrated protrusion. The serrated groove (302) is opened on both sides of the mold (3). The serrated anti-slip silicone part (301) is fixed to the inside of the serrated groove (302). The serrated protrusion is provided at the contact point between the fixing part (4) and the serrated anti-slip silicone part (301) and is located at the bottom end of the fixing part (4).

2. The molding die fixing mechanism according to claim 1, characterized in that: The bottom surface of the serrated anti-slip silicone part (301) is in contact with the inner side of the serrated groove (302), and the surface of the serrated protrusion is in contact with the surface of the serrated anti-slip silicone part (301).

3. The molding die fixing mechanism according to claim 2, characterized in that: The surface of the serrated protrusion is adapted to the surface of the serrated anti-slip silicone part (301).

4. The molding die fixing mechanism according to claim 1, characterized in that: The width of the fastener (4) is adapted to the width of the serrated groove (302).

5. The molding die fixing mechanism according to claim 1, characterized in that: The serrated groove (302) has guide grooves (31) on both sides of its edge, and the cross-section of the guide grooves (31) is inclined.

6. The molding die fixing mechanism according to claim 1, characterized in that: The other end of the fixing member (4) is attached to the surface of the injection molding machine (1). A base (41) is provided in the recessed part of the surface of the fixing member (4). An installation component (42) is provided on the inner side of the base (41) and the inner side of the fixing member (4). The installation component (42) consists of a washer, a nut and a stud. The washer is provided on the surface of the base (41), the nut is provided on the surface of the washer, and the stud passes through the nut, washer, base (41) and fixing member (4) to the inner side of the mold (3).

7. The molding die fixing mechanism according to claim 1, characterized in that: A shaft (2) is installed around the mold (3) and on the injection molding machine (1).

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