Novel template structure of injection molding machine

Through the design of inner and outer layer plate structures and reinforced ribs, the problem of deformation of the injection molding machine template is solved, the stability and service life of the template are improved, and the construction difficulty and cost are reduced.

CN223354778UActive Publication Date: 2025-09-19GUANGDONG YOUZHU PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202422515717.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-17
Publication Date
2025-09-19
Estimated Expiration
2034-10-17

AI Technical Summary

Technical Problem

Existing injection molding machine templates are easily deformed due to mold structure design problems and improper injection molding machine parameter settings, resulting in product defects and increased construction costs. Existing solutions increase template weight and production costs, and reduce construction efficiency.

Method used

The inner and outer layer plate structure is adopted, and the outer layer plate is provided with reinforcing ribs and inclined center hole design. Through the design of reinforcing ribs and connecting holes, the force of the outer layer plate is evenly distributed to the inner layer plate, reducing the probability of template deformation.

Benefits of technology

Effectively reduce formwork deformation, improve bearing capacity and service life, and reduce construction difficulty and cost.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223354778U_ABST
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Abstract

The utility model belongs to the technical field of injection molding machines, and particularly discloses a novel template structure of an injection molding machine, which comprises an inner-layer plate and an outer-layer plate which are arranged in parallel, the center of the top surface of the outer-layer plate protrudes upwards to form a central boss, corner bosses are arranged at four corners of the outer part of the outer-layer plate, and the inner-layer plate and the outer-layer plate are arranged in parallel. The other end of the corner boss is connected with the inner layer plate; reinforcing rib plates are evenly distributed on the outer circumferential surface of the central boss, and the bottom faces of the reinforcing rib plates are fixedly connected with the top face of the outer layer plate. According to the novel template structure of the injection molding machine provided by the utility model, through the reinforcing rib plates arranged on the outer-layer plate and the inclined design of one side wall of the center hole, the stress of a concentrated point on the outer-layer plate is uniformly dispersed to the whole plate surface of the inner-layer plate, and the probability of template deformation is reduced.
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Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding machines, and in particular relates to a novel template structure of an injection molding machine. Background Art

[0002] The injection molding machine platen is a key component of the injection molding machine and plays a vital role in the smooth operation of the injection molding process. It is mainly used to support the mold and complete the opening and closing stroke during the injection molding process. The injection molding machine platen is one of the core components of the injection molding machine. It not only supports the mold, but also participates in the opening and closing of the injection molding machine, ensuring that the molten plastic can be accurately injected into the mold cavity and ultimately form the desired plastic product.

[0003] The injection molding machine template is usually composed of the upper template, lower template, side template, tie rod, guard plate and guide column, etc. These parts work together to ensure the precise positioning and stable movement of the mold during the injection molding process.

[0004] In actual production, due to problems with mold structure design (such as uneven wall thickness, improper gate position, etc.) and injection molding machine parameter settings (excessive injection pressure or long holding time, etc.), not only are product defects easily caused, but the template is also prone to deformation. The existing solution is mostly to optimize the template material and template thickness. This setting not only greatly increases the production cost of the template, but also increases the weight of the template, which will increase the construction difficulty and cost during the actual construction process, and reduce construction efficiency. Utility Model Content

[0005] The purpose of the present utility model is to overcome the above problems existing in the prior art and to provide a new template structure for an injection molding machine. Through the inclined design of the reinforcing ribs arranged on the outer plate and the side wall of the center hole, the concentrated point force received by the outer plate is evenly distributed to the entire plate surface of the inner plate, thereby reducing the probability of template deformation.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0007] A novel template structure for an injection molding machine comprises an inner plate and an outer plate arranged in parallel. The center of the top surface of the outer plate is raised upward to form a central boss. The four corners of the outer plate are each provided with a corner boss, and the other ends of the corner bosses are connected to the inner plate.

[0008] The outer circumferential surface of the central boss is uniformly distributed with reinforcing ribs, and the bottom surface of the reinforcing ribs is fixedly connected to the top surface of the outer plate;

[0009] A connecting piece is provided at the center of the lower bottom surface of the outer plate, and the other end of the connecting piece is connected to the inner plate;

[0010] A connecting hole is provided on the top of the connecting piece, and a center hole 1 connected to the connecting hole is provided in the center of the top surface of the central boss, and the cross-sectional area of ​​the center hole 1 gradually decreases from top to bottom.

[0011] Furthermore, the cross-sectional area of ​​the connecting hole gradually decreases from top to bottom.

[0012] Furthermore, a second central hole communicating with the connecting hole is opened in the center of the top surface of the inner layer plate.

[0013] Furthermore, the longitudinal section of the central hole 1 is in an inverted trapezoidal shape.

[0014] Furthermore, the longitudinal section of the reinforcing rib is triangular.

[0015] Furthermore, a reinforcing rib is provided on the corner boss, and the other end of the reinforcing rib is connected to the connecting piece;

[0016] The top of the reinforcing rib is fixedly connected to the outer plate, and the bottom of the reinforcing rib is fixedly connected to the inner plate.

[0017] Furthermore, the outer circumferential surface of the central boss is uniformly distributed with connecting ribs;

[0018] The number of the connecting ribs is less than the number of the reinforcing ribs.

[0019] Furthermore, the connecting rib is located between two adjacent reinforcing ribs.

[0020] Furthermore, the outer circumferential surface of the connecting piece is uniformly distributed with a plurality of connecting ribs;

[0021] The top of the connecting rib is fixedly connected to the outer plate, and the bottom of the connecting rib is fixedly connected to the inner plate.

[0022] Furthermore, the outer plate is rectangular, and three sides of the outer plate are provided with notches.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. The utility model provides a new template structure for an injection molding machine. Through the inclined design of the reinforcing ribs arranged on the outer plate and the side wall of the center hole, the concentrated point force on the outer plate is evenly distributed to the entire plate surface of the inner plate, reducing the probability of template deformation.

[0025] 2. In the present invention, a connecting hole is provided on the top of the connecting piece, a center hole 1 connected to the connecting hole is provided in the center of the top surface of the central boss, and a center hole 2 connected to the connecting hole is provided in the center of the top surface of the inner layer plate. Since the connecting holes are respectively connected to the center hole 1 and the center hole 2, the connecting holes are used for the connection between the center hole 1 and the center hole 2, and the cross-sectional area of ​​the connecting holes gradually decreases from top to bottom. During the injection molding process, the pressure can be dispersed to prevent deformation in the hole, thereby preventing the template structure from deforming.

[0026] 3. The utility model provides a new template structure for an injection molding machine. By optimizing the template structure, its layout is reasonable, and the stress conditions of various parts can be balanced, thereby reducing local stress concentration and further improving the bearing capacity and service life of the template. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 It is a structural diagram of the utility model;

[0029] Figure 2 It is a structural side view of the utility model;

[0030] Figure 3 It is a top view of the structure of the utility model;

[0031] Figure 4 It is a structural diagram of the present utility model.

[0032] Among them, the figures are marked as: 1, inner plate; 2, outer plate; 20, central boss; 21, corner boss; 201, reinforcing rib; 22, connecting piece; 221, connecting hole; 23, center hole one; 11, center hole two; 211, reinforcing rib; 202, connecting rib; 24, connecting rib; 25, notch. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] The injection molding machine's mold plate typically consists of an upper mold plate, lower mold plate, side mold plates, tie rods, guard plates, and guide posts. These components work together to ensure precise positioning and stable movement of the mold during the injection molding process. The double-layered head plate structure features a main mold mounting structure on the inner plate (lower mold plate) and a balanced load-bearing medium on the outer plate (upper mold plate).

[0036] In actual production, due to problems with mold structure design (such as uneven wall thickness, improper gate position, etc.) and injection molding machine parameter settings (excessive injection pressure or long holding time, etc.), not only are product defects easily caused, but the template is also prone to deformation. The existing solution is mostly to optimize the template material and template thickness. This setting not only greatly increases the production cost of the template, but also increases the weight of the template, which will increase the construction difficulty and cost during the actual construction process, and reduce construction efficiency.

[0037] like Figures 1 to 4 As shown, a new template structure of an injection molding machine includes an inner plate 1 and an outer plate 2 set up in parallel, wherein corner bosses 21 are provided at the four corners of the outer plate 2, and the other ends of the corner bosses 21 are connected to the inner plate 1. Specifically, the inner plate 1, the outer plate 2 and the corner bosses 21 can be designed or molded in an integrated manner;

[0038] The outer circumferential surface of the central boss 20 is evenly distributed with reinforcing ribs 201, and the bottom surface of the reinforcing ribs 201 is fixedly connected to the top surface of the outer layer plate 2, wherein the longitudinal section of the reinforcing ribs 201 is triangular; specifically, the longitudinal section of the reinforcing ribs 201 is a right-angled triangle, wherein one right-angled side of the reinforcing ribs 201 can be integrally formed and provided on the outer circumferential surface of the central boss 20, and the other right-angled side of the reinforcing ribs 201 can be integrally formed and provided on the top surface of the outer layer plate 2; since the reinforcing ribs 201 are evenly distributed on the outer circumferential surface of the central boss 20, and their bottom surfaces are provided on the top surface of the outer layer plate 2, therefore, during injection molding, the force applied to the outer layer plate 2 can be evenly distributed to the entire plate surface of the inner layer plate, thereby reducing the probability of deformation of the template structure;

[0039] A connecting piece 22 is provided in the center of the lower bottom surface of the outer plate 2, and the other end of the connecting piece 22 is connected to the inner plate 1. The connecting piece 22 can be integrally formed and provided between the outer plate 2 and the inner plate 1, and a connecting hole 221 is provided at the top of the connecting piece 22;

[0040] A central boss 20 is formed in the center of the top surface of the outer plate 2, and a center hole 23 connected to the connecting hole 221 is provided in the center of the top surface of the central boss 20. The cross-sectional area of ​​the center hole 23 gradually decreases from top to bottom. Specifically, the longitudinal section of the center hole 23 is an inverted trapezoid. Since the cross-sectional area of ​​the center hole 23 gradually decreases from top to bottom, this inclined design can also make the concentrated point force of the outer plate 2 evenly dispersed to the entire plate surface of the inner plate, thereby reducing the probability of plate surface deformation.

[0041] See also Figures 3 and 4 , the cross-sectional area of ​​the connecting hole 221 gradually decreases from top to bottom;

[0042] A second center hole 11 connected to the connecting hole 221 is also opened in the center of the top surface of the inner layer plate 1;

[0043] The connecting hole 221 is connected to the center hole 1 23 and the center hole 2 11 respectively. Therefore, the connecting hole 221 is used for the connection between the center hole 1 23 and the center hole 2 11, and the cross-sectional area of ​​the connecting hole 221 gradually decreases from top to bottom. During the injection molding process, the pressure can be dispersed to prevent deformation in the hole, thereby preventing the template structure from deforming.

[0044] See also Figures 2 to 3 , the connecting member 22 may be cylindrical; a plurality of connecting ribs 24 are evenly distributed on the outer circumferential surface of the connecting member 22; the top of the connecting rib 24 is fixedly connected to the outer plate 2, and the bottom of the connecting rib 24 is fixedly connected to the inner plate 1;

[0045] Specifically, the connecting rib 24 can be integrally formed and arranged on the outer circumferential surface of the connecting member 22, and its top and bottom can also be integrally formed and arranged on the bottom of the outer plate 2 and the top of the inner plate 1;

[0046] A reinforcing rib 211 is provided on the corner boss 21, and the other end of the reinforcing rib 211 is connected to the connecting piece 22; the top of the reinforcing rib 211 is fixedly connected to the outer plate 2, and the bottom of the reinforcing rib 211 is fixedly connected to the inner plate 1; similarly, the reinforcing rib 211 can be integrally formed and provided on the corner boss 21, and its top and bottom can also be integrally formed and provided on the bottom of the outer plate 2 and the top of the inner plate 1;

[0047] Specifically, the number of connecting ribs 24 and reinforcing ribs 211 can be the same, and the connecting rib 24 can be arranged between two adjacent reinforcing ribs 211, that is, the connecting ribs 24 and reinforcing ribs 211 are alternately distributed along the outer circumferential surface of the connecting member 22; more specifically, the number of connecting ribs 24 and reinforcing ribs 211 can be different, but both are distributed on the outer circumferential surface of the connecting member 22 without interference.

[0048] See also Figures 1 to 4 , connecting ribs 202 are evenly distributed on the outer circumferential surface of the central boss 20; the number of the connecting ribs 202 is less than the number of the reinforcing ribs 201;

[0049] The connecting rib 202 is located between two adjacent reinforcing ribs 201 .

[0050] See also Figures 1 to 4 The outer plate 2 is rectangular, and notches 25 are provided on three sides of the outer plate 2, so that the area of ​​the top surface of the outer plate 2 is smaller than the area of ​​the top surface of the inner plate 1, that is, a structure with a small top and a large bottom is formed, further enhancing the stability of the template structure in practical application.

[0051] The utility model provides a novel template structure for an injection molding machine. Through the inclined design of the reinforcing ribs 201 and the side walls of the center hole 23 provided on the outer plate 2, the concentrated point force received by the outer plate 2 is evenly distributed to the entire plate surface of the inner plate 1, thereby reducing the probability of template deformation and thereby improving the load-bearing capacity and service life of the template.

[0052] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A new template structure for an injection molding machine, characterized in that: The invention comprises an inner plate (1) and an outer plate (2) arranged in parallel, wherein the center of the top surface of the outer plate (2) is raised upward to form a central boss (20), and corner bosses (21) are provided at the four corners outside the outer plate (2), and the other ends of the corner bosses (21) are connected to the inner plate (1); The outer circumferential surface of the central boss (20) is uniformly distributed with reinforcing ribs (201), and the bottom surface of the reinforcing ribs (201) is fixedly connected to the top surface of the outer plate (2); A connecting piece (22) is provided at the center of the lower bottom surface of the outer plate (2), and the other end of the connecting piece (22) is connected to the inner plate (1); A connecting hole (221) is provided at the top of the connecting piece (22), and a center hole (23) communicating with the connecting hole (221) is provided at the center of the top surface of the central boss (20), wherein the cross-sectional area of ​​the center hole (23) gradually decreases from top to bottom.

2. A novel template structure for an injection molding machine according to claim 1, characterized in that: The cross-sectional area of ​​the connecting hole (221) gradually decreases from top to bottom.

3. The novel template structure of an injection molding machine according to claim 1, characterized in that: A second central hole (11) communicating with the connecting hole (221) is provided in the center of the top surface of the inner layer plate (1).

4. The novel template structure of an injection molding machine according to claim 1, characterized in that: The longitudinal section of the central hole 1 (23) is in the shape of an inverted trapezoid.

5. The novel template structure of an injection molding machine according to claim 1, characterized in that: The longitudinal section of the reinforcing rib (201) is triangular.

6. The novel template structure of an injection molding machine according to claim 1, characterized in that: A reinforcing rib (211) is provided on the corner boss (21), and the other end of the reinforcing rib (211) is connected to the connecting piece (22); The top of the reinforcing rib (211) is fixedly connected to the outer plate (2), and the bottom of the reinforcing rib (211) is fixedly connected to the inner plate (1).

7. The novel template structure of an injection molding machine according to claim 1, characterized in that: The outer circumferential surface of the central boss (20) is uniformly distributed with connecting ribs (202); The number of the connecting ribs (202) is less than the number of the reinforcing ribs (201).

8. The novel template structure of an injection molding machine according to claim 7, characterized in that: The connecting rib (202) is located between two adjacent reinforcing ribs (201).

9. The novel template structure of an injection molding machine according to claim 1, characterized in that: The outer circumferential surface of the connecting member (22) is uniformly distributed with a plurality of connecting ribs (24); The top of the connecting rib (24) is fixedly connected to the outer plate (2), and the bottom of the connecting rib (24) is fixedly connected to the inner plate (1).

10. The novel template structure of an injection molding machine according to claim 1, characterized in that: The outer plate (2) is rectangular in shape, and three side surfaces of the outer plate (2) are provided with notches (25).