Injection molding machine

Abstract

The invention discloses an injection molding machine, and relates to the technical field of injection molding equipment. The second mold locking plate is movably arranged on one side of the mold locking head plate and can be close to the mold locking head plate to clamp the mold with the mold locking head plate or far away from the mold locking head plate to release the mold; and the reinforcing assembly is detachably connected with the second mold locking plate and is arranged on one side, facing the mold locking head plate, of the second mold locking plate. According to the technical scheme provided by the invention, the service life of the second mold locking plate is prolonged.

Description

Technical Field

[0001] This invention relates to the field of injection molding equipment technology, and in particular to an injection molding machine. Background Technology

[0002] As the core equipment for plastic molding and processing, the clamping mechanism of the injection molding machine is a key component that ensures the precision and stability of injection molding.

[0003] The clamping mechanism of a conventional injection molding machine typically includes a clamping head plate and a clamping second plate. The clamping head plate is usually fixed, while the clamping second plate is movably mounted on one side of the clamping head plate. Together, they form a clamping space for holding the mold. During injection molding, the clamping second plate moves towards the clamping head plate, clamping the mold together with the clamping head plate to provide a stable, sealed molding environment for the injection process. After injection molding is complete, the clamping second plate moves away from the clamping head plate, expanding the clamping space to facilitate operations such as part removal and mold changing by the user.

[0004] However, during the mold closing process of existing injection molding machines, when the second mold clamping plate contacts the mold and applies clamping force, the mold will exert a reverse force on the second mold clamping plate. Especially when processing large-size molds, thick-walled products, or using high-pressure injection molding processes, the second mold clamping plate is prone to elastic deformation. Long-term repeated elastic deformation can easily cause permanent deformation or even damage to the second mold clamping plate, shortening its service life. Summary of the Invention

[0005] The main objective of this invention is to provide an injection molding machine designed to extend the service life of the two clamping plates.

[0006] To achieve the above objectives, the present invention provides an injection molding machine comprising:

[0007] Mold head plate; A second mold-locking plate is movably disposed on one side of the mold-locking head plate, and can be brought close to the mold-locking head plate to clamp the mold, or moved away from the mold-locking head plate to release the mold; and A reinforcing component is detachably connected to the second mold-locking plate and is located on the side of the second mold-locking plate facing the mold-locking head plate.

[0008] In one embodiment, the reinforcing component includes: A reinforcing plate is fitted onto the side of the second mold clamping plate facing the mold clamping head plate; and The connecting piece allows the reinforcing plate to be detachably connected to the locking plate.

[0009] In one embodiment, the reinforcing plate is provided with a clearance groove, which is located on the side of the reinforcing plate facing the locking plate.

[0010] In one embodiment, the clearance groove is arranged in a ring around the axis of the reinforcing plate.

[0011] In one embodiment, the reinforcing plate includes: Flat plate section; A central protrusion is provided on the side of the flat plate facing the locking mold plate, and is located at the center of the flat plate; and An edge protrusion is located on the same side of the flat plate as the central protrusion and is disposed along the periphery of the flat plate. The central protrusion and the edge protrusion are spaced apart, and the spaced apart forms the clearance groove.

[0012] In one embodiment, the reinforcing component further includes an adjusting pad that is fitted onto the side of the central protrusion facing the locking plate.

[0013] In one embodiment, the outer periphery of the adjusting pad is the same as the outer periphery of the central protrusion.

[0014] In one embodiment, multiple connectors are provided, and the multiple connectors are distributed on the same virtual circumference, the center of the virtual circumference coinciding with the axis of the reinforcing plate; and / or, The connector includes a bolt and a nut. The bolt passes through the reinforcing plate and the second locking plate. The nut is fitted onto the bolt and is located on the side of the second locking plate away from the reinforcing plate.

[0015] In one embodiment, the reinforcing component further includes a positioning structure that connects the reinforcing plate and the second mold-locking plate so that the axis of the reinforcing plate coincides with the axis of the second mold-locking plate.

[0016] In one embodiment, the positioning structure includes a positioning post, the reinforcing plate is provided with a positioning groove corresponding to the positioning post, the locking plate is provided with a positioning hole corresponding to the positioning post, one end of the positioning post passes through the positioning groove, and the other end of the positioning post passes through the positioning hole.

[0017] The injection molding machine in the technical solution of the present invention includes a mold head plate, a mold second plate, and a reinforcing component. An adjustable clamping space is formed between the mold head plate and the mold second plate for placing the mold. When the mold second plate moves towards the mold head plate, the mold second plate cooperates with the mold head plate to clamp the mold to meet the mold closing requirements of injection molding. When the mold second plate moves away from the mold head plate, the clamping space increases, and the mold can be released from the clamping constraints of the mold head plate and the mold second plate, which facilitates operations such as part removal and mold changing. The reinforcing component is detachably connected to the second clamping plate and installed on the side of the second clamping plate facing the clamping head plate, i.e., the side of the second clamping plate facing the mold. This improves the overall rigidity of the second clamping plate and the reinforcing component, making them less prone to deformation. Furthermore, during the movement of the second clamping plate towards the clamping head plate and clamping the mold, the reinforcing component absorbs and disperses some of the reaction force from the mold, reducing the reaction force on the second clamping plate and thus reducing elastic deformation. This lowers the risk of deformation and damage to the second clamping plate, extending its service life. Additionally, the detachable connection between the reinforcing component and the second clamping plate allows for direct replacement with a matching reinforcing component when different mold sizes are needed or when the reinforcing component is damaged, without requiring structural modifications to the second clamping plate itself. This improves the injection molding machine's adaptability to different production needs and reduces equipment maintenance costs and operational complexity. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an injection molding machine in the prior art; Figure 2 A schematic diagram of the structure of the clamping plates and reinforcing components of an injection molding machine according to an embodiment of the present invention. Figure 1 ; Figure 3 A schematic diagram of the structure of the clamping plates and reinforcing components of an injection molding machine according to an embodiment of the present invention. Figure 2 ; Figure 4 for Figure 3 Sectional view at point AA; Figure 5 This is a schematic diagram of the structure of a reinforcing component in an embodiment of an injection molding machine provided by the present invention; Figure 6This is a schematic diagram of the structure of the reinforcing plate of a reinforcing component in an embodiment of an injection molding machine provided by the present invention; Figure 7 This is a schematic diagram of the structure of the two clamping plates of an injection molding machine according to an embodiment of the present invention.

[0020] Explanation of icon numbers: 100. Reinforcing component; 110. Reinforcing plate; 1101. Clearance groove; 1102. Positioning groove; 111. Flat plate; 112. Central protrusion; 113. Edge protrusion; 120. Connector; 130. Adjusting pad; 140. Positioning post; 200. Mold clamping plate 2; 201. Positioning hole; 300. Mold clamping head plate; 400. Drive mechanism.

[0021] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; "connection" can mean a mechanical connection or an electrical connection, a direct connection or an indirect connection through an intermediate medium, or a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0026] This invention proposes an injection molding machine.

[0027] Please see Figures 1 to 2 , Figure 1 This is a schematic diagram of the structure of an injection molding machine in the prior art. Figure 2 A schematic diagram of the structure of the clamping plates and reinforcing components of an injection molding machine according to an embodiment of the present invention. Figure 1 .

[0028] In one embodiment of the present invention, the injection molding machine includes: Mold clamping head plate 300; The second mold clamping plate 200 is movably disposed on one side of the mold clamping head plate 300, and can be brought close to the mold clamping head plate 300 to hold the mold, or moved away from the mold clamping head plate 300 to release the mold; and The reinforcing component 100 is detachably connected to the second mold-locking plate 200 and is located on the side of the second mold-locking plate 200 facing the mold-locking head plate 300.

[0029] The injection molding machine in the technical solution of the present invention includes a mold head plate 300, a mold second plate 200, and a reinforcing component 100. An adjustable clamping space is formed between the mold head plate 300 and the mold second plate 200 for placing the mold. When the mold second plate 200 moves toward the mold head plate 300, the mold second plate 200 and the mold head plate 300 cooperate to clamp the mold to meet the mold closing requirements of injection molding. When the mold second plate 200 moves away from the mold head plate 300, the clamping space increases, and the mold can be released from the clamping constraints of the mold head plate 300 and the mold second plate 200, which facilitates operations such as part removal and mold changing. The reinforcing component 100 is detachably connected to the second mold clamping plate 200 and installed on the side of the second mold clamping plate 200 facing the mold head plate 300, i.e., on the side of the second mold clamping plate 200 facing the mold. This improves the overall rigidity of the second mold clamping plate 200 and the reinforcing component 100, making them less prone to deformation. On the other hand, during the process of the second mold clamping plate 200 moving towards the mold head plate 300 and clamping the mold, the reinforcing component 100 first bears and disperses part of the reverse force from the mold, thereby reducing the reverse force on the second mold clamping plate 200, reducing the elastic deformation of the second mold clamping plate 200, and thus reducing the risk of deformation and damage to the second mold clamping plate 200, and extending the service life of the second mold clamping plate 200. In addition, the reinforcing component 100 and the clamping plate 200 are detachably connected. When it is necessary to adapt to molds of different specifications, or when the reinforcing component 100 is damaged, the matching reinforcing component 100 can be directly disassembled and replaced without structural modification of the clamping plate 200 body. This not only improves the adaptability of the injection molding machine to different production needs, but also reduces the maintenance cost and operation difficulty of the equipment.

[0030] In one embodiment, the reinforcing component 100 includes: Reinforcing plate 110 is attached to the side of clamping mold plate 200 facing clamping mold head plate 300; and The connector 120 and the reinforcing plate 110 are detachably connected to the locking plate 200 via the connector 120.

[0031] Reference Figure 4 and Figure 5In an embodiment of the present invention, the reinforcing component 100 includes a reinforcing plate 110 and a connector 120. The reinforcing plate 110 is fitted onto the side of the second mold clamping plate 200 facing the mold clamping head plate 300, ensuring that the reinforcing plate 110 can more efficiently bear the reaction force from the mold, further reducing the risk of damage to the second mold clamping plate 200. The connector 120 can be fastened with bolts or snap-fitted to achieve a detachable connection between the connector 120 and the second mold clamping plate 200, reducing the risk of displacement or detachment of the reinforcing plate 110 due to vibration, high pressure, or other factors during the mold clamping process. In addition, when the reinforcing plate 110 wears or ages, it is convenient to replace the reinforcing plate 110, reducing the maintenance cost of the injection molding machine.

[0032] In one embodiment, the reinforcing plate 110 is provided with a clearance groove 1101, which is located on the side of the reinforcing plate 110 facing the locking plate 200.

[0033] Reference Figures 4 to 6 In an embodiment of the present invention, the reinforcing plate 110 is provided with a clearance groove 1101 on the side facing the second mold clamping plate 200, so that the reinforcing plate 110 and the second mold clamping plate 200 are not in complete contact, but form a local contact area and a local non-contact area. When the reinforcing plate 110 is subjected to the reaction force of the mold and undergoes elastic deformation, the non-contact area corresponding to the clearance groove 1101 will not directly transmit the deformation to the second mold clamping plate 200, thereby reducing the deformation linkage between the reinforcing plate 110 and the second mold clamping plate 200, thereby reducing the degree of elastic deformation of the second mold clamping plate 200, further reducing the risk of damage to the second mold clamping plate 200, and extending the service life of the second mold clamping plate 200.

[0034] In one embodiment, the clearance groove 1101 is arranged in a ring around the axis of the reinforcing plate 110.

[0035] Reference Figure 5 and Figure 6In an embodiment of the present invention, the clearance groove 1101 is a closed loop centered on the central axis of the reinforcing plate 110, dividing the contact surface between the reinforcing plate 110 and the second mold clamping plate 200 into an inner annular contact area and an outer annular contact area, separated by the annular clearance groove 1101. The clearance groove 1101 is distributed annularly around the axis of the reinforcing plate 110. During the mold clamping process, it can uniformly interrupt the deformation transmission path between the reinforcing plate 110 and the second mold clamping plate 200 from all directions, making the stress on each area of ​​the second mold clamping plate 200 more balanced and reducing the degree of elastic deformation of the second mold clamping plate 200 from all directions, thereby further reducing the risk of damage to the second mold clamping plate 200 and extending its service life. In addition, it also helps the reinforcing plate 110 to evenly bear and disperse the reaction force from the mold, reducing local stress concentration on the reinforcing plate 110 and extending its service life.

[0036] In one embodiment, the reinforcing plate 110 includes: Flat plate section 111; A central protrusion 112 is provided on the side of the flat plate 111 facing the locking plate 200, and is located at the center of the flat plate 111; and The edge protrusion 113 is located on the same side of the flat plate 111 as the central protrusion 112, and is provided along the periphery of the flat plate 111. The central protrusion 112 and the edge protrusion 113 are spaced apart to form a clearance groove 1101.

[0037] Reference Figure 6 In an embodiment of the present invention, the reinforcing plate 110 includes a flat plate portion 111, a central protrusion portion 112, and an edge protrusion portion 113. The flat plate portion 111 serves as the central protrusion portion 112 and the edge protrusion portion 113, providing mounting support and being responsible for contacting the mold. The central protrusion portion 112 and the edge protrusion portion 113 are disposed on the side of the flat plate portion 111 facing the locking plate 200, and are responsible for contacting the locking plate 200, forming two force transmission support areas at the center and the outer periphery. This ensures the uniformity of the reaction force from the mold to the reinforcing plate 110 to the locking plate 200 during transmission, thereby further reducing the risk of damage to the locking plate 200. The central protrusion 112 is located at the center of the flat plate 111, and the edge protrusions 113 are distributed along the periphery of the flat plate 111. The gap formed between the central protrusion 112 and the edge protrusions 113 naturally forms a closed ring around the axis of the flat plate 111 (reinforcing plate 110), thereby forming a clearance groove 1101. The structure is simple and easy to implement.

[0038] In one embodiment, the reinforcing component 100 further includes an adjusting pad 130, which is fitted onto the side of the central protrusion 112 facing the locking plate 200.

[0039] Reference Figure 5 In the embodiments of the present invention, when the mold clamping plate 200 and the mold clamping head plate 300 hold the mold, the center position experiences the greatest force and may have the greatest degree of elastic deformation. The reinforcing component 100 also includes an adjusting pad 130, which is sandwiched between the central protrusion 112 and the mold clamping plate 200. This helps to absorb and disperse the reaction force transmitted from the central protrusion 112 to the mold clamping plate 200, further reducing the degree of elastic deformation in the central region of the mold clamping plate 200, thereby extending the service life of the mold clamping plate 200. On the other hand, the adjusting pad 130 can compensate for some processing errors on the corresponding mating surfaces of the central protrusion 112 and the mold clamping plate 200, making the central protrusion 112, the adjusting pad 130, and the mold clamping plate 200 fit more tightly, improving the uniformity of force transmission, reducing local stress concentration, and further extending the service life of the mold clamping plate 200.

[0040] Specifically, in this embodiment, the adjusting pad 130 is made of copper. Copper has good ductility and plastic deformation ability, which is beneficial for absorbing the reaction force transmitted from the central protrusion 112 to the second mold locking plate 200, as well as compensating for the processing error between the central protrusion 112 and the second mold locking plate 200.

[0041] In embodiments of the present invention, multiple adjusting pads 130 are provided, and the multiple adjusting pads 130 have different thicknesses, so that different adjusting pads 130 can be selected according to different mold clamping requirements, thereby further reducing the risk of damage to the second mold clamping plate 200 and extending the service life of the second mold clamping plate 200.

[0042] In one embodiment, the outer periphery of the adjusting pad 130 is the same as the outer periphery of the central protrusion 112.

[0043] Reference Figure 5 In an embodiment of the present invention, the outer periphery of the adjusting pad 130 is the same as the outer periphery of the central protrusion 112, so that the adjusting pad 130 can completely cover the central protrusion 112, ensuring that the reaction force applied by the central protrusion 112 can be evenly transmitted to the corresponding central area of ​​the mold clamping plate 200 through the adjusting pad 130, reducing stress concentration in the mold clamping plate 200, further reducing the risk of damage to the mold clamping plate 200, and extending the service life of the mold clamping plate 200.

[0044] In one embodiment, multiple connectors 120 are provided, and the multiple connectors 120 are distributed on the same virtual circumference, the center of the virtual circumference coinciding with the axis of the reinforcing plate 110; and / or, The connector 120 includes a bolt and a nut. The bolt passes through the reinforcing plate 110 and the locking plate 200, and the nut is fitted onto the bolt and located on the side of the locking plate 200 away from the reinforcing plate 110.

[0045] Reference Figure 3 In embodiments of the present invention, multiple connectors 120 are provided. All connectors 120 are distributed on the same circumference with the central axis of the reinforcing plate 110 as the center. They apply fastening force to the reinforcing plate 110 and the second mold-locking plate 200 from multiple positions in the circumferential direction, so that the distribution of fastening force between the reinforcing plate 110 and the second mold-locking plate 200 is more balanced. This avoids the reinforcing plate 110 from tilting or locally warping during the mold-locking process due to uneven distribution of connectors 120, thereby extending the service life of the reinforcing plate 110 and ensuring the reinforcing effect of the reinforcing plate 110 on the second mold-locking plate 200.

[0046] Reference Figures 4 to 5 In an embodiment of the present invention, the connector 120 penetrates and connects the flat plate portion 111, the central protrusion portion 112, and the locking plate 200. The connection position of the connector 120 is close to the center of the locking plate 200 and the reinforcing plate 110, which helps to further improve the rigidity of the central part of the locking plate 200 and the reinforcing plate 110, reduce the degree of deformation of the central part of the two, further reduce the risk of damage to the locking plate 200, and extend the service life of the locking plate 200.

[0047] Reference Figures 4 to 5 In an embodiment of the present invention, the connector 120 includes a bolt and a nut. The bolt passes through the reinforcing plate 110 and the second mold locking plate 200. The reinforcing plate 110 has a countersunk hole on the side facing the mold to facilitate hiding the head of the bolt. The tail of the bolt extends into the second mold locking plate 200 on the side away from the reinforcing plate 110 and is connected to the nut. This ensures the connection strength between the reinforcing plate 110 and the second mold locking plate 200, and also makes assembly convenient and easy to disassemble.

[0048] In one embodiment, the reinforcing component 100 further includes a positioning structure that connects the reinforcing plate 110 and the locking plate 200 so that the axis of the reinforcing plate 110 coincides with the axis of the locking plate 200.

[0049] In an embodiment of the present invention, the reinforcing assembly 100 further includes a positioning structure that makes the axis of the reinforcing plate 110 coincide with the axis of the second mold-locking plate 200. The positioning structure provides a positioning reference for the installation of the reinforcing plate 110, eliminating the need for repeated adjustments to the position of the reinforcing plate 110 during assembly, facilitating quick and easy fixing of the reinforcing plate 110, and improving the efficiency of disassembly and replacement of the reinforcing assembly 100. Furthermore, the positioning structure ensures that the axis of the reinforcing plate 110 coincides with the axis of the second mold-locking plate 200, guaranteeing that the supporting force of the reinforcing plate 110 on the second mold-locking plate 200 is evenly distributed circumferentially during the mold-locking process, avoiding localized overload caused by eccentricity, further reducing the risk of damage to the second mold-locking plate 200, and extending its service life. On the other hand, during the long-term and repeated mold-locking and opening operations of the injection molding machine, the positioning structure can limit the radial displacement of the reinforcing plate 110, preventing it from shifting due to vibration, impact, or other factors. This ensures that the reinforcing plate 110 always supports the second mold-locking plate 200 in a coaxial state, guaranteeing the long-term stability of the reinforcing effect of the reinforcing assembly 100 and ensuring its reliability. The positioning structure can be implemented using various forms such as pins or positioning protrusions, as long as the functional requirements are met.

[0050] In one embodiment, the positioning structure includes a positioning post 140, a reinforcing plate 110 having a positioning groove 1102 corresponding to the positioning post 140, and a locking plate 200 having a positioning hole 201 corresponding to the positioning post 140. One end of the positioning post 140 passes through the positioning groove 1102, and the other end of the positioning post 140 passes through the positioning hole 201.

[0051] Combination Figure 4 , Figure 6 as well as Figure 7In an embodiment of the present invention, the positioning structure includes a positioning post 140. A positioning groove 1102 matching the positioning post 140 is formed on the side of the reinforcing plate 110 facing the second mold-locking plate 200. A positioning hole 201 matching the positioning post 140 is formed on the side of the second mold-locking plate 200 facing the reinforcing plate 110. One end of the positioning post 140 is embedded and passes through the positioning groove 1102 of the reinforcing plate 110, and the other end is embedded and passes through the positioning hole 201 of the second mold-locking plate 200. Through the limiting effect of the positioning post 140, the radial relative displacement between the reinforcing plate 110 and the second mold-locking plate 200 is restricted, thereby aligning the axis of the reinforcing plate 110 with the axis of the second mold-locking plate 200. The positioning is achieved through the matching of the positioning post 140 with the positioning groove 1102 and the positioning hole 201, resulting in a simple structure and convenient assembly. In this specific embodiment, after the positioning post 140 is installed into the positioning groove 1102, the positioning post 140 is fixed to the reinforcing plate 110 by screw fastening, which reduces the risk of loss of the positioning post 140. Each time it is assembled with the locking mold plate 200, the positioning post 140 only needs to be inserted into the positioning hole 201, which further reduces the operation steps and improves the assembly convenience of the reinforcing component 100 and the locking mold plate 200.

[0052] In an embodiment of the present invention, the injection molding machine further includes a drive mechanism 400, which drives the second mold clamping plate 200 to the side opposite to the mold clamping head plate 300, so that the second mold clamping plate 200 moves closer to or further away from the mold clamping head plate 300. The drive mechanism 400 can be hydraulically driven, electrically driven, or in other forms, as long as it meets the functional requirements, and is not limited here.

[0053] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. An injection molding machine, characterized in that, include: Mold head plate; The second mold clamping plate is movably disposed on one side of the mold clamping head plate. It can be close to the mold clamping head plate to clamp the mold, or away from the mold clamping head plate to release the mold. as well as A reinforcing component is detachably connected to the second mold-locking plate and is located on the side of the second mold-locking plate facing the mold-locking head plate.

2. The injection molding machine as described in claim 1, characterized in that, The reinforcement components include: A reinforcing plate is fitted onto the side of the second mold clamping plate facing the mold clamping head plate; and The connecting piece allows the reinforcing plate to be detachably connected to the locking plate.

3. The injection molding machine as described in claim 2, characterized in that, The reinforcing plate is provided with a clearance groove, which is located on the side of the reinforcing plate facing the locking plate.

4. The injection molding machine as described in claim 3, characterized in that, The clearance groove is arranged in a ring around the axis of the reinforcing plate.

5. The injection molding machine as described in claim 4, characterized in that, The reinforcing plate includes: Flat plate section; A central protrusion is provided on the side of the flat plate facing the locking mold plate, and is located at the center of the flat plate; and An edge protrusion is located on the same side of the flat plate as the central protrusion and is disposed along the periphery of the flat plate. The central protrusion and the edge protrusion are spaced apart, and the spaced apart forms the clearance groove.

6. The injection molding machine as described in claim 5, characterized in that, The reinforcing component also includes an adjustment pad, which is fitted onto the side of the central protrusion facing the locking plate.

7. The injection molding machine as described in claim 6, characterized in that, The outer circumferential dimensions of the adjusting pad are the same as the outer circumferential dimensions of the central protrusion.

8. The injection molding machine as described in claim 2, characterized in that, The connectors are provided in multiple parts, and the multiple connectors are distributed on the same virtual circumference, the center of the virtual circumference coinciding with the axis of the reinforcing plate; and / or, The connector includes a bolt and a nut. The bolt passes through the reinforcing plate and the second locking plate. The nut is fitted onto the bolt and is located on the side of the second locking plate away from the reinforcing plate.

9. The injection molding machine as described in claim 2, characterized in that, The reinforcing component further includes a positioning structure that connects the reinforcing plate and the second mold-locking plate so that the axis of the reinforcing plate coincides with the axis of the second mold-locking plate.

10. The injection molding machine as described in claim 9, characterized in that, The positioning structure includes a positioning post, the reinforcing plate is provided with a positioning groove corresponding to the positioning post, the locking plate is provided with a positioning hole corresponding to the positioning post, one end of the positioning post passes through the positioning groove, and the other end of the positioning post passes through the positioning hole.

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