Injection molding part curing positioning jig and injection molding part curing box

Abstract

The utility model discloses an injection molding part curing and positioning jig and an injection molding part curing box. The jig bottom plate comprises a plurality of continuous first V-shaped bending structures; a gap between every two first V-shaped bending structures forms a limiting groove; a plurality of jig filler strips, wherein each jig filler strip comprises a plurality of second V-shaped bending structures; the bending angle of the second V-shaped bending structure is the same as that of the first V-shaped bending structure; the bottom face of the jig filler strip can be attached to the top face of the jig bottom plate. According to the injection molding part curing and positioning jig provided by the utility model, the injection molding part in the curing step can be placed on the thin plate comprising the plurality of V-shaped bending structures, and the V-shaped limiting grooves among the V-shaped bending structures are used for limiting the longer thermosetting injection molding part, so that the thermosetting injection molding part does not deform or bend during curing; and the stability of the thermosetting injection molding part in the curing process is improved.

Description

Technical Field

[0001] The utility model belongs to the field of injection molding production process, in particular to an injection molding curing positioning fixture and an injection molding curing box. Background Art

[0002] Thermosetting injection moldings have a wide range of uses in various industrial fields. They are popular for their excellent physical properties and resistance to high temperatures and chemical corrosion. They are widely used in the chemical industry, automotive industry, and medical equipment. In the production process of thermosetting injection moldings, after the raw materials are injection molded in the thermosetting injection molding machine, the product needs to be cured at a constant temperature. The role of curing is extremely critical. This step determines the final performance and quality of the scraper. In the traditional curing process of thermosetting injection moldings, long thermoplastic parts are prone to deformation or bending during the curing process in the oven after being ejected from the mold. This type of bending has a fatal impact on product quality. If the degree of bending is too high, the product will be directly scrapped, causing losses to the company. Therefore, there is an urgent need for a load-bearing fixture during the curing of thermosetting injection moldings to prevent the bending of long thermosetting injection moldings. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an injection molding curing positioning fixture, which can prevent a thermosetting injection molding with a long length from bending during the curing stage of the thermosetting injection molding.

[0004] In a first aspect, an embodiment of the utility model provides an injection molded part curing positioning jig, comprising:

[0005] A fixture bottom plate, the fixture bottom plate comprising a plurality of first V-shaped bending structures; the gaps between the first V-shaped bending structures constitute limiting grooves;

[0006] A plurality of jig pads, each of which includes a plurality of second V-shaped bending structures; the bending angle of the second V-shaped bending structure is the same as the bending angle of the first V-shaped bending structure; and the bottom surface of the jig pad can be fitted with the top surface of the jig bottom plate.

[0007] In some embodiments of the present invention, the bending angles of the first V-shaped bending structure and the second V-shaped bending structure are both variable.

[0008] In some embodiments of the present invention, the jig pad is glued and fixed to the jig bottom plate.

[0009] In some embodiments of the present invention, a jig bracket is provided at the bottom of the jig base plate.

[0010] In some embodiments of the present invention, the material of the jig bottom plate and the jig pad is stainless steel.

[0011] In some embodiments of the present invention, the thickness of the jig bottom plate is 3 mm; the thickness of the jig pad is 1 mm-3 mm.

[0012] In a second aspect, an embodiment of the present invention further provides an injection molding curing box, and the injection molding curing box includes the injection molding curing positioning fixture described in the above-mentioned embodiment.

[0013] The injection molded part curing positioning jig according to the utility model has at least the following beneficial effects: the injection molded part curing positioning jig provided by the utility model can place the injection molded parts in the curing step on a thin plate including a plurality of V-shaped bending structures, and use the V-shaped limiting grooves between the V-shaped bending structures to limit the longer thermosetting injection molded parts, so that the thermosetting injection molded parts will not be deformed or bent during curing, thereby improving the stability of the thermosetting injection molded parts during the curing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 This is one of the schematic diagrams of the injection molded part curing positioning fixture and the injection molded part in the embodiment of the utility model;

[0016] Figure 2 This is the second schematic diagram of the injection molded part curing positioning fixture and the injection molded part in the embodiment of the utility model;

[0017] Figure 3 It is a schematic diagram of the relationship between the fixture bracket and the fixture base plate of an embodiment of the utility model.

[0018] Reference numerals: jig base plate 100 , limiting groove 110 , jig pad 200 , jig support 300 , thermosetting injection molded part 400 . DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present utility model, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of the first, second or third, it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] The utility model provides an injection molding curing positioning jig, which can place the injection molding in the curing step on a thin plate including a plurality of V-shaped bending structures, and utilizes the V-shaped limiting grooves between the V-shaped bending structures to limit the thermosetting injection molding with a longer length, so that the thermosetting injection molding will not be deformed or bent during curing, thereby improving the stability of the thermosetting injection molding during the curing process.

[0024] The embodiments of the utility model are further described below in conjunction with the accompanying drawings.

[0025] Reference Figure 1 to Figure 3 , Figure 1 This is a schematic diagram of a plastic part solidification positioning fixture according to an embodiment of the present invention, and the positioning fixture specifically includes the following structure;

[0026] The fixture bottom plate 100 includes a plurality of continuous first V-shaped bending structures; the gaps between the first V-shaped bending structures form a limiting groove 110;

[0027] A plurality of jig pads 200, each of which includes a plurality of second V-shaped bending structures; the bending angle of the second V-shaped bending structure is the same as the bending angle of the first V-shaped bending structure; the bottom surface of the jig pad 200 can be fitted with the top surface of the jig bottom plate 100.

[0028] It should be noted that the jig bottom plate 100 provided in the embodiment of the utility model is provided with a continuous first V-shaped bending structure, and the limiting grooves 110 between these first V-shaped bending structures can be used to place a thermosetting injection molded part 400 with a longer length. Normally, when the thermosetting injection molded part 400 enters the curing process, the thermosetting plastic will undergo thermal expansion when heated, and the longer parts will be more susceptible to the thermal expansion, which may cause the parts to deform, twist or warp. When the thermosetting injection molded part 400 is placed in the limiting groove 110, the stress provided by the side wall of the limiting groove 110 (the thin plate between the two first V-shaped bending structures) prevents the thermosetting injection molded part 400 from thermal expansion deformation, and the degree of deformation during the curing process is smaller than that of the thermosetting injection molded part 400 that is not limited. Furthermore, the embodiment of the utility model further provides a jig pad 200. Specifically, the bending angle of the second V-shaped bending structure of the jig pad 200 is the same as the bending angle of the first V-shaped bending structure, and the bottom surface of the jig pad 200 can be completely attached to the top surface of the jig bottom plate 100. Since the shapes of the thermosetting injection molded parts 400 are different, the shape and width distribution of some injection molded parts are not uniform (such as Figure 1 As shown in FIG. 1 , the limiting groove 110 can be raised by overlapping a plurality of jig pads 200 so that the portion with a smaller diameter of the thermosetting injection molded part 400 can also be limited. It is understandable that the jig pads 200 can be overlapped and padded in any number according to actual use requirements, or can be as follows: Figure 3 No settings are shown.

[0029] In some embodiments of the present invention, the bending angles of the first V-shaped bending structure and the second V-shaped bending structure are both variable.

[0030] It should be noted that, since the width or radius of the thermosetting injection molding 400 that needs to be cured each time is different during actual use, the bending angles of the first V-shaped bending structure and the second V-shaped bending structure can be adjusted as needed before use, so that the jig base plate 100 and the jig pad 200 meet the use requirements. For example, if the width or radius of the thermosetting injection molding 400 that needs to be cured is large, the angle of the first V-shaped bending structure can be set to a right angle or an obtuse angle; if the width or radius of the thermosetting injection molding 400 that needs to be cured is small, the angle of the first V-shaped bending structure can be set to an acute angle. In this way, while ensuring the stability of the jig base plate 100, it can avoid occupying too much space. It can be understood that the bending angle of the second V-shaped bending structure on the jig pad 200 is set to be the same as the first V-shaped bending structure according to actual use.

[0031] In some embodiments of the present invention, the jig pad 200 is adhered and fixed on the jig base plate 100 .

[0032] It should be noted that this design is to ensure the accurate position of the jig pad 200 during the manufacturing process of the thermosetting injection molded part 400, so as to avoid its position movement or dislocation due to physical collision or other factors. If the jig pad 200 is not fixed, it may be displaced during the curing and material replacement process, which will lead to a decrease in production efficiency and even affect the quality of the thermosetting injection molded part 400. Fixing the jig pad 200 to the jig base plate 100 by adhesion can effectively avoid these problems. It is understandable that the gluing and fixing of the jig pad 200 generally adopts professional adhesives, such as epoxy resin glue, polyurethane glue, etc. These adhesives not only have the characteristics of high strength and high temperature resistance, but also can adapt to the bonding of various material surfaces, ensuring the tight bonding of the jig pad 200 and the jig base plate 100.

[0033] Reference Figure 3 In some embodiments of the present invention, a fixture bracket 300 is disposed at the bottom of the fixture base plate 100 .

[0034] It should be noted that, in order to enable the jig base plate 100 to be set in any type of curing box, a jig bracket 300 is set at the bottom of the jig base plate 100. It can be understood that the jig bracket 300 here has a certain strength and rigidity, and can bear the weight of the jig base plate 100 and the thermosetting injection molded part 400 placed on the jig base plate 100, so as to ensure the stability of the entire device during use.

[0035] In some embodiments of the present invention, the material of the fixture bottom plate 100 and the fixture pad 200 is stainless steel.

[0036] It should be noted that, since the temperature during curing of the thermosetting injection molding 400 is relatively high, the jig base plate 100 and the jig pad 200 need to ensure that they will not produce obvious deformation at the ambient temperature during curing, so the embodiment of the utility model uses stainless steel as the material of the jig base plate 100 and the jig pad 200. Due to the high strength and corrosion resistance of stainless steel, as well as good high temperature stability and low thermal expansion coefficient, the jig base plate 100 and the jig pad 200 made of stainless steel can withstand the high temperature environment of the thermosetting injection molding 400 in the curing process, ensuring that the jig will not undergo obvious deformation during use, thereby ensuring the quality and stability of the thermosetting injection molding 400.

[0037] In some embodiments of the present invention, the thickness of the fixture bottom plate 100 is 3 mm; the thickness of the fixture pad 200 is 1 mm-3 mm.

[0038] It should be noted that in the embodiments of the present invention, the thickness refers to the thickness of the thin plate used for the jig base plate 100 and the jig pad 200 before the jig base plate 100 and the jig pad 200 are bent. The purpose of selecting this thickness range is mainly to facilitate the manufacture of the jig base plate 100 and the jig pad 200, while at the same time ensuring the strength and stability of the jig base plate 100 and the jig pad 200 to a certain extent, so as to better realize the advantages of the present invention. Through the above provisions and limitations on the thickness of the thin plate in the embodiments of the present invention, we have obtained a more stable manufacturing effect of the jig base plate 100 and the jig pad 200, and can effectively reduce deformation, increase service life, and realize the application advantages of the present invention.

[0039] In a second aspect, an embodiment of the present invention further provides an injection molding curing box, and the injection molding curing box includes the injection molding curing positioning fixture of the embodiment of the above aspect.

[0040] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A solidification positioning jig for injection molded parts, characterized in that: include; A fixture bottom plate, the fixture bottom plate comprising a plurality of continuous first V-shaped bending structures; the gaps between the first V-shaped bending structures constitute limiting grooves; A plurality of jig pads, each of which includes a plurality of second V-shaped bending structures; the bending angle of the second V-shaped bending structure is the same as the bending angle of the first V-shaped bending structure; and the bottom surface of the jig pad can be fitted with the top surface of the jig bottom plate.

2. The injection molded part curing positioning fixture according to claim 1, characterized in that: The bending angles of the first V-shaped bending structure and the second V-shaped bending structure are both variable.

3. The injection molded part curing positioning fixture according to claim 1, characterized in that: The jig pad is adhered and fixed on the jig bottom plate.

4. The injection molded part curing positioning fixture according to claim 1, characterized in that: A jig bracket is arranged at the bottom of the jig bottom plate.

5. The injection molded part curing positioning fixture according to claim 1, characterized in that: The material of the jig bottom plate and the jig pad is stainless steel.

6. The injection molded part curing positioning fixture according to claim 1, characterized in that: The thickness of the jig bottom plate is 3mm; the thickness of the jig pad is 1mm-3mm.

7. An injection molding curing box, characterized in that: The injection molding curing box comprises an injection molding curing positioning fixture as described in any one of claims 1-6.

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