Injection molding machine with same positioning reference

Abstract

The invention relates to the field of injection molding machines, and discloses an injection molding machine with the same positioning benchmark, the injection molding machine comprises a bottom frame, an extrusion module, a fixed mold plate, a movable mold plate and a driving assembly, the table top of the bottom frame is fixedly connected with a guide rail assembly, and the fixed mold plate is fixedly connected to the middle of the guide rail assembly; the movable mold plate is slidably connected to the guide rail assembly and located on one side of the fixed mold plate, the driving assembly is fixedly connected to the guide rail assembly and located on one side of the fixed mold plate and used for pushing the movable mold plate and the fixed mold plate to be opened and closed, and the extrusion module is slidably connected to the guide rail assembly in a lockable mode and located on the other side of the fixed mold plate. The extrusion die set, the fixed die plate, the movable die plate and the driving assembly are all arranged on the guide rail assembly, so that all main component die sets have the same positioning reference, calibration and debugging during installation are facilitated, meanwhile, the problem that misalignment is prone to occurring due to different positioning references in the using process is solved, and the production efficiency is improved. And the matching precision of the main component modules can be well and continuously kept in the using process.

Description

Technical Field

[0001] The present invention relates to the field of injection molding machines, and more specifically, to an injection molding machine with a common positioning reference. Background Art

[0002] The basic structure of an existing injection molding machine includes a molding module and an extrusion module, wherein the molding module mainly includes a fixed mold plate, a movable mold plate and a driving assembly for driving the movable mold plate and the fixed mold plate to open and close. In the existing injection molding machine, the fixed mold plate is fixed on the base frame, and the movable mold plate and the fixed mold plate are often only connected by guide columns for cooperation and movement. The driving assembly and the extrusion module are fixed at different positions between the base frame and the fixed mold plate. Even the extrusion module of some injection molding machines is fixed on a base frame different from the molding module. It can be seen that the main component modules of the existing injection molding machine have their own positioning references, which makes calibration and debugging during installation more troublesome. At the same time, during use, due to the continuous movement and vibration of each component, it is also easy to cause the different positioning references to be misaligned, resulting in reduced matching accuracy between the component modules. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides an injection molding machine having a common positioning reference and capable of better and continuously maintaining the matching accuracy of the modules of the main components.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] An injection molding machine with the same positioning reference comprises a base frame, an extrusion module, a fixed template, a movable template and a driving assembly, wherein a guide rail assembly is fixedly connected to the table top of the base frame, the fixed template is fixedly connected to the middle part of the guide rail assembly, the movable template is slidably connected to the guide rail assembly and is located on one side of the fixed template, the driving assembly is fixedly connected to the guide rail assembly and is located on one side of the fixed template and is used to push the movable template and the fixed template to open and close, and the extrusion module is lockably slidably connected to the guide rail assembly and is located on the other side of the fixed template.

[0006] Furthermore, the guide rail assembly is evenly provided with a plurality of threaded holes along its length direction at the position where the extrusion module is located, and the extrusion module is detachably locked on the guide rail assembly by screws.

[0007] Furthermore, two longitudinal beams arranged in parallel along the length direction of the base frame are fixedly connected to the bottom of the base frame table top, and the guide rail assembly includes two guide rails arranged in parallel along the length direction of the base frame, and the two guide rails overlap with the two longitudinal beams in a direction perpendicular to the base frame table top.

[0008] Furthermore, the extrusion module includes a base that is lockably slidably connected to the guide rail assembly, a barrel arranged on the base, a heating element wrapped around the outside of the barrel, a spiral blade arranged in the barrel, a driving element for driving the spiral blade to rotate, and a hopper for feeding materials. The spiral blade is fixedly connected to a plurality of heat pipes that are evenly arranged along the spiral blade and are used to transfer the heat of the heating element to the rotating shaft of the spiral blade.

[0009] Furthermore, the body of the heat pipe fits the spiral blade, and the hot end of the heat pipe is close to the outer edge of the spiral blade, and the cold end is close to the rotating shaft of the spiral blade.

[0010] Furthermore, the spiral blades are fixedly connected with metal fixing strips with high thermal conductivity at both sides of each heat pipe to clamp the heat pipe.

[0011] Furthermore, the fixing strip fits the spiral blade, and the inner end of the fixing strip is fixedly connected to the rotating shaft of the spiral blade.

[0012] Furthermore, a metal fixing block with high thermal conductivity is fixedly connected to the outer edge of the spiral blade to compress the heat pipe and the fixing bar.

[0013] Furthermore, the heat pipe, fixing strip and fixing block are provided on both sides of the spiral blade along the thickness direction where the fixing block is located, and two corresponding fixing blocks located on both sides of the spiral blade are fixed to the spiral blade by screw locking and clamping.

[0014] In summary, the present invention has the beneficial effects: the present invention arranges a guide rail assembly on the base frame, and places the extrusion module, fixed mold plate, movable mold plate and driving assembly on the guide rail assembly, so that each main component module is arranged with the guide rail assembly as a reference. Since the same positioning reference is used, calibration and debugging during installation is convenient, and the problem of misalignment caused by different positioning references during use is also avoided. At the same time, each main component module can better and continuously maintain the matching accuracy during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the bottom surface of the chassis of the present invention;

[0017] Figure 3 Schematic diagram of the cross-sectional stereoscopic structure of the extrusion module of the present invention

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the spiral blade of the present invention.

[0019] Figure numerals: 1. chassis; 11. longitudinal beam; 2. extrusion module; 21. base; 22. barrel; 23. heating element; 24. spiral blade; 25. driving element; 26. hopper; 3. fixed mold plate; 4. movable mold plate; 5. driving assembly; 6. guide rail assembly; 61. threaded hole; 7. heat pipe; 8. fixing bar; 9. fixing block. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component.

[0022] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] like Figures 1 to 4 The injection molding machine shown in the figure mainly comprises a base frame 1, an extrusion die set 2, a fixed die plate 3, a movable die plate 4, a driving assembly 5 and a guide rail assembly 6, wherein the guide rail assembly 6 comprises two guide rails, and the two guide rails are fixedly connected to the table of the base frame 1 in a parallel direction along the length direction of the base frame 1. The two guide rails are made of high-strength materials such as stainless steel or carbon steel to ensure that they are not easily deformed.

[0025] like Figure 2As described above, two longitudinal beams 11 are fixedly connected to the bottom of the table top of the base frame 1. The two longitudinal beams 11 are arranged in parallel along the length direction of the base frame 1, and in the vertical direction of the table top of the base frame 1, the two guide rails and the two longitudinal beams 11 overlap. The length of the longitudinal beam 11 is basically the same as the length of the guide rail, so that the entire guide rail can be better and more evenly supported by the longitudinal beam 11, further improving the overall strength to prevent the guide rail from deformation.

[0026] The two guide rails have sufficient support to serve as a continuous and effective reference. The chassis 1, extrusion module 2, fixed template 3, movable template 4, and drive assembly 5 are all set on the two guide rails, so that these main component modules are set based on the same reference. Specifically, the fixed template 3 is fixedly connected to the middle of the guide rail, the movable template 4 is slidably connected to the guide rail and is located on one side of the fixed template 3, the drive assembly 5 adopts a cylinder, and is fixedly connected to the guide rail and is located on one side of the fixed template 3. The movable template 4 is located between the fixed template 3 and the drive assembly 5, and is driven by the drive assembly 5 to enable the movable template 4 and the fixed template 3 to open and close. The guide rail is evenly provided with a plurality of threaded holes 61 along its own length direction at the position on the other side of the fixed template 3. The extrusion module 2 is detachably and lockably connected to the guide rail assembly 6 by screws, and is located on the other side of the fixed template 3.

[0027] like Figure 3 and Figure 4 As shown, the extrusion module 2 includes a base 21, a barrel 22 disposed on the base 21, a heating element 23 wrapped around the barrel 22, a spiral blade 24 disposed in the barrel 22, a driving element 25 for driving the spiral blade 24 to rotate, and a hopper 26 for feeding materials. The base 21 is slidably connected to the guide rail by screws. The driving element 25 is preferably a motor. The spiral blade 24 is fixedly connected to a plurality of heat pipes 7 evenly arranged along the spiral blade 24, such as Figure 4 As shown, three heat pipes 7 are evenly arranged in one lead of the spiral blade 24, and of course the number can be more, according to actual needs. The body of the heat pipe 7 fits the spiral blade 24, and the hot end of the heat pipe 7 is close to the outer edge of the spiral blade 24, and the cold end is close to the rotating shaft of the spiral blade 24.

[0028] The heat pipe 7 is an existing mature technology, which has a vacuum-sealed metal tube shell, and the inside of the shell is filled with liquid working medium. When the hot end of the heat pipe 7 is heated, the liquid working medium in the tube is heated and evaporates, and takes away heat, which is the latent heat of evaporation of the liquid working medium. The steam flows from the central channel to the cold end of the heat pipe 7, condenses into liquid, and releases latent heat at the same time. Under the action of capillary force, the liquid flows back to the hot end. The heat pipe 7 has a strong thermal conductivity. By setting the heat pipe 7, the heat of the heating element 23 can be quickly transferred to the rotating shaft of the spiral blade 24.

[0029] The barrel 22 and spiral blade 24 of the existing injection molding machine are generally small in diameter, long in length, and slender in shape, mainly to allow the powder inside to be fully heated by the heat of the heating element 23. However, the barrel 22 that is too slender will increase the shaking amplitude during operation, which will easily affect the matching accuracy of the components over time. Figure 3 and Figure 4 In the embodiment, the heat pipe 7 is arranged on the spiral blade 24, and the heat of the heating element 23 is quickly transferred to the rotation axis direction of the spiral blade 24. In this process, the powder in the barrel 22 is quickly heated. Therefore, in this embodiment, the diameter of the barrel 22 and the spiral blade 24 as a whole can be set larger and the length shorter, which can also achieve the purpose of heating the powder. At the same time, the strength of the barrel 22 can be increased as a whole, the shaking amplitude during operation can be reduced, and the matching accuracy of the components can be continuously maintained.

[0030] The spiral blades 24 are fixedly connected with metal fixing strips 8 with high thermal conductivity at both sides of each heat pipe 7, which are used to clamp the heat pipe 7, and the fixing strips 8 fit the spiral blades 24, and the inner ends of the fixing strips 8 are fixedly connected to the rotating shaft of the spiral blades 24. By providing the fixing strips 8, the heat on the heat pipe 7 can be conducted away faster and transferred to the spiral blades 24 and the powder, thereby improving the overall thermal conductivity, and better fixing the heat pipe 7 to prevent it from falling off; when the spiral blades 24 rotate, due to the heat conduction effect of the heat pipe 7 and the spiral blades 24, the powder close to the surface of the spiral blades 24 has a higher temperature and melts faster, and the fixing strips 8 can stir the powder close to the surface to mix it with the powder in other places, so that the powder melts more evenly and faster overall.

[0031] In addition, refer to Figure 4 , the spiral blade 24 is fixedly connected with a metal fixing block 9 with high thermal conductivity on the outer edge. The spiral blade 24 is provided with the heat pipe 7, fixing bar 8 and fixing block 9 on both sides of the spiral blade 24 in the thickness direction, and the two corresponding fixing blocks 9 located on the two sides of the spiral blade 24 are fixed to the spiral blade 24 by screw locking clamping. The use of the fixing block 9 can better compress the heat pipe 7 and the fixing bar 8, making the fixation more firm. The area of ​​the fixing block 9 close to the inner surface of the barrel 22 is much larger than the area of ​​the outer edge of the spiral blade 24 at this location, which can greatly enhance the ability to absorb the heat transferred from the heating element 23 to the barrel 22. In addition, since the temperature of the inner surface of the barrel 22 is higher, the powder temperature close to the inner surface is higher and melts faster. The setting of the fixing block 9 can stir the powder close to the inner surface to mix it with the powder at other locations, so that the powder melts more evenly and faster overall.

[0032] The above embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An injection molding machine with the same positioning reference, comprising a chassis, an extrusion module, a fixed die plate, a movable die plate and a drive assembly, characterized in that: A guide rail assembly is fixedly connected to the table top of the base frame, the fixed template is fixedly connected to the middle part of the guide rail assembly, the movable template is slidably connected to the guide rail assembly and is located on one side of the fixed template, the driving assembly is fixedly connected to the guide rail assembly and is located on one side of the fixed template, and is used to push the movable template and the fixed template to open and close, and the extrusion module is lockably slidably connected to the guide rail assembly and is located on the other side of the fixed template.

2. The injection molding machine with the same positioning reference according to claim 1, characterized in that: The guide rail assembly is evenly provided with a plurality of threaded holes along its length direction at the position where the extrusion module is located, and the extrusion module is detachably locked on the guide rail assembly by screws.

3. The injection molding machine with the same positioning reference according to claim 1, characterized in that: The bottom of the base frame table is fixedly connected with two longitudinal beams arranged in parallel along the length direction of the base frame. The guide rail assembly includes two guide rails arranged in parallel along the length direction of the base frame. The two guide rails overlap with the two longitudinal beams in a direction perpendicular to the base frame table.

4. The injection molding machine with the same positioning reference according to claim 1, characterized in that: The extrusion module includes a base that is lockably slidably connected to the guide rail assembly, a barrel arranged on the base, a heating element wrapped around the outside of the barrel, a spiral blade arranged in the barrel, a driving element for driving the spiral blade to rotate, and a hopper for feeding materials. The spiral blade is fixedly connected to a plurality of heat pipes that are evenly arranged along the spiral blade and are used to transfer the heat of the heating element to the spiral blade rotating shaft.

5. The injection molding machine with the same positioning reference according to claim 4, characterized in that: The tube body of the heat pipe fits the spiral blade, and the hot end of the heat pipe is close to the outer edge of the spiral blade, and the cold end is close to the rotating shaft of the spiral blade.

6. The injection molding machine with the same positioning reference according to claim 5, characterized in that: The spiral blades are fixedly connected with metal fixing strips with high thermal conductivity at both sides of each heat pipe, so as to clamp the heat pipe.

7. The injection molding machine with the same positioning reference according to claim 6, characterized in that: The fixing strip fits the spiral blade, and the inner end of the fixing strip is fixedly connected to the rotating shaft of the spiral blade.

8. The injection molding machine with the same positioning reference according to claim 6, characterized in that: The spiral blade is fixedly connected with a metal fixing block with high thermal conductivity on the outer edge thereof, so as to compress the heat pipe and the fixing bar.

9. The injection molding machine with the same positioning reference according to claim 8, characterized in that: The heat pipe, fixing strip and fixing block are arranged on both sides of the spiral blade along the thickness direction where the fixing block is located, and two corresponding fixing blocks located on both sides of the spiral blade are fixed to the spiral blade by screw locking and clamping.

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