Shaping device for injection molding product

Abstract

The utility model discloses a shaping device for an injection molding product, and belongs to the technical field of shaping of injection molding products. The shaping device comprises a bracket, a bottom box, a sliding rail and a shaping assembly, the bracket and the sliding rail are both arranged on the bottom box, the bracket is used for placing a product to be shaped, and the shaping assembly is movably arranged on the sliding rail and used for shaping the product to be shaped on the bracket. According to the shaping device, the shaping assembly is guided through the sliding rail to shape the protrusions on the product to be shaped, the protrusions are smoothed through the shaping assembly in a hot melting extrusion mode, product appearance shaping under the shrinkage process is achieved, the appearance of the product is smooth, and the stress effect is better. The device is simple in structure and convenient and efficient to use, and has good practicability in product appearance finishing under the shrinkage compensation process.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding product trimming, in particular to a trimming device for injection molding products. Background Art

[0002] When the injection molded product is cooled, the shrinkage rate and temperature change of different parts are different. Under normal conditions, the frozen layer of the product shrinks less and cools faster, while the center of the product shrinks more and cools slower. This is one of the reasons for the shrinkage in the middle of the injection molded product.

[0003] In order to avoid the shrinkage phenomenon affecting the shape of the middle part of the injection molded product, more plastic will be compensated in advance in the middle part of the product during injection molding to avoid the shrinkage phenomenon forming a depression on the product surface. This process improvement will cause a bulge in the middle of the product after cooling, and the bulge needs to be trimmed before the product leaves the factory. Therefore, an efficient trimming device is needed to trim the shape of the product under the shrinkage compensation process. Utility Model Content

[0004] The purpose of the utility model is to provide a shaping device for injection molded products to solve the above-mentioned problems existing in the prior art.

[0005] Technical solution: A shaping device for injection molded products, including a support, a bottom box, a slide rail and a shaping component, wherein the support and the slide rail are both arranged on the bottom box, the support is used to place the product to be shaped, the shaping component is movably arranged on the slide rail, and the shaping component is used to shape the product to be shaped on the support.

[0006] Furthermore, the product to be shaped is a plastic part, and side tubes are provided at both ends of the product to be shaped, and a placement groove matching the bracket is formed between the two side tubes. There is a protrusion on the product to be shaped, and the protrusion is located at the axis position of the side tube.

[0007] Furthermore, the slide rail is arranged to penetrate the bracket, and is used to provide co-linear moving stations for the shaping components on both sides of the product to be shaped.

[0008] Furthermore, the shaping component includes a bearing seat, a coaxial cone, a heating element and a shaping ejector pin, the bearing seat is installed on the slider of the slide rail, the coaxial cone and the heating element are respectively installed on both sides of the bearing seat, the coaxial cone matches the side cylinder structure, and is used to limit the side cylinder of the product to be shaped to be concentric with the coaxial cone, and the shaping ejector pin is installed at the output end of the heating element and passes through the bearing seat and the coaxial cone to extrude and shape the protrusion of the product to be shaped.

[0009] Furthermore, the shaping device also includes a feed drive, which is installed on the bottom box, and the output end of the feed drive is connected to the bearing seat.

[0010] Furthermore, an industrial control box is provided in the bottom box, and the industrial control box is electrically connected to the feed drive and the heating element respectively.

[0011] Beneficial effect: The utility model guides the shaping component to trim the protrusions on the product to be trimmed through the slide rail, and the shaping component flattens the protrusions by hot melt extrusion, thereby achieving the product shape trimming under the shrinkage compensation process, making the product shape flat and the force effect better. In addition, the utility model has a simple structure, is convenient and efficient to use, and has good practicality in the product shape trimming under the shrinkage compensation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a partial structural schematic diagram of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the shaping component in the utility model;

[0015] Figure 4 It is a structural schematic diagram of the product to be modified in the utility model.

[0016] The figures are marked as follows: 1. product to be shaped; 11. placement groove; 12. side cylinder; 13. protrusion; 2. bracket; 3. bottom box; 4. slide rail; 5. shaping component; 51. bearing seat; 52. coaxial cone cylinder; 53. heating element; 54. shaping ejector pin; 6. feed drive. DETAILED DESCRIPTION

[0017] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0018] like Figure 1-Figure 4 As shown, a shaping device for injection molded products includes a bracket 2, a bottom box 3, a slide rail 4 and a shaping component 5. The bracket 2 and the slide rail 4 are both arranged on the bottom box 3. The bracket 2 is used to place the product 1 to be shaped. The shaping component 5 is movably arranged on the slide rail 4. The shaping component 5 is used to shape the product 1 to be shaped on the bracket 2.

[0019] The utility model guides the shaping component 5 to trim the position of the protrusion 13 on the product 1 to be trimmed by the slide rail 4. The shaping component 5 flattens the protrusion 13 by hot melt extrusion, thereby compensating for the product shape trimming under the shrinkage process, making the product shape flat and having a better force effect.

[0020] like Figure 1 and 4 As shown, the product 1 to be shaped is a plastic part, and side tubes 12 are provided at both ends of the product 1 to be shaped, and a placement groove 11 matching with the bracket 2 is formed between the two side tubes 12. There is a protrusion 13 on the product 1 to be shaped, and the protrusion 13 is located at the axis position of the side tube 12 (the protrusion 13 is a product appearance defect left by shrinkage by compensating plastic means, and this device is a shaping device designed for the protrusion 13 on the product 1 to be shaped). A placement cavity for pre-positioning the product 1 to be shaped is opened on the bracket 2, and the product 1 to be shaped cooperates with the placement cavity through the placement groove 11, so that the protrusion 13 can be quickly aligned with the output end of the shaping component 5, which is conducive to the rapid shaping of the product 1 to be shaped.

[0021] like Figure 1-Figure 2 As shown, the slide rail 4 is arranged through the bracket 2, and is used to provide a collinear moving station for the shaping components 5 on both sides of the product 1 to be shaped. The arrangement of the slide rail 4 through the bracket 2 allows the slide rail 4 to be located directly below the product 1 to be shaped, avoiding the offset design of the output end of the shaping component 5 seeking the protrusion 13. In addition, there are two protrusions 13 on the product 1 to be shaped, and the two shaping components 5 are arranged on the same slide rail 4, which is conducive to the output of the two shaping components 5 being collinear, and preventing the product 1 to be shaped from being twisted by forces in two directions.

[0022] like Figure 1-Figure 4 As shown, the shaping component 5 includes a bearing seat 51, a coaxial cone 52, a heating element 53 and a shaping ejector pin 54. The bearing seat 51 is installed on the slider of the slide rail 4, the coaxial cone 52 and the heating element 53 are respectively installed on both sides of the bearing seat 51, the coaxial cone 52 is structurally matched with the side cylinder 12, and is used to limit the side cylinder 12 of the product 1 to be shaped to be concentric with the coaxial cone 52, and the shaping ejector pin 54 is installed at the output end of the heating element 53 and passes through the bearing seat 51 and the coaxial cone 52, and is used to extrude and shape the protrusion 13 of the product 1 to be shaped.

[0023] When the two shaping components 5 approach each other and clamp the product 1 to be shaped, the coaxial cone 52 is concentric with the side cylinder 12 of the product 1 to be shaped, which facilitates the centering of the product 1 to be shaped. The heating element 53 is connected to the industrial control box set in the bottom box 3, and the temperature of the heating element 53 is controlled according to the material characteristics of the product 1 to be shaped. The shaping ejector 54 is a columnar structure, and its end surface is used to squeeze the protrusion 13 into a plane, which is the output end for achieving the shape trimming of the product 1 to be shaped.

[0024] like Figure 1-Figure 2 As shown, the shaping device further includes a feed drive 6, which is mounted on the bottom box 3, and the output end of the feed drive 6 is connected to the bearing seat 51. The feed drive 6 is preferably a cylinder, and the feed drive 6 is electrically connected to the industrial control box to synchronously drive the shaping component 5 to move. The feed drive 6 can also use other synchronous drive methods.

[0025] When the utility model is used, the structure of positioning the product 1 to be shaped in the shaping component 5 and the structure of the bracket 2 can be appropriately adjusted according to the structural characteristics of the product 1 to be shaped, so as to adapt to more product types and broaden the scope of application of the utility model. In the above embodiment, the side tube 12 structure of the product 1 to be shaped is taken as an example, and the coaxial cone 52 is selected to position it, and the bracket 2 is designed with a placement cavity according to the side tube 12 structure.

[0026] When used specifically, the industrial control box sets the heating temperature of the heating element 53 according to the material properties of the product 1 to be shaped, and then the product 1 to be shaped is placed on the bracket 2, and then the industrial control box controls the feed drive 6 to make the shaping component 5 trim the protrusion 13 of the product 1 to be shaped. Specifically, when the two groups of shaping components 5 approach and clamp the product 1 to be shaped, the coaxial cone 52 extends into the side cylinder 12, so that the side cylinder 12 and the coaxial cone 52 are concentrically arranged (to achieve the alignment of the heating element 53 and the protrusion 13), and then the shaping ejector 54 abuts against the protrusion 13, and flattens it by heating and extrusion. After a specific period of pressurization, the industrial control box controls the shaping component 5 to move away from the product 1 to be shaped, and the product 1 to be shaped can be taken out from the bracket 2 after the shaping is completed. In this way, the product 1 to be shaped can be efficiently shaped.

[0027] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A shaping device for injection molded products, characterized in that: The invention comprises a support seat (2), a bottom box (3), a slide rail (4) and a shaping component (5), wherein the support seat (2) and the slide rail (4) are both arranged on the bottom box (3), the support seat (2) is used to place a product (1) to be shaped, the shaping component (5) is movably arranged on the slide rail (4), and the shaping component (5) is used to shape the product (1) to be shaped on the support seat (2).

2. A shaping device for injection molded products according to claim 1, characterized in that: The product to be shaped (1) is a plastic part. Side tubes (12) are provided at both ends of the product to be shaped (1). A placement groove (11) matching the bracket (2) is formed between the two side tubes (12). A protrusion (13) is provided on the product to be shaped (1), and the protrusion (13) is located at the axial position of the side tube (12).

3. A shaping device for injection molded products according to claim 2, characterized in that: The slide rail (4) is arranged to penetrate the bracket (2) and is used to provide a co-linear moving station for the shaping components (5) on both sides of the product (1) to be shaped.

4. A shaping device for injection molded products according to claim 3, characterized in that: The shaping component (5) comprises a bearing seat (51), a coaxial cone (52), a heating element (53) and a shaping ejector pin (54); the bearing seat (51) is mounted on a slider of a slide rail (4); the coaxial cone (52) and the heating element (53) are mounted on two sides of the bearing seat (51) respectively; the coaxial cone (52) matches the structure of the side cylinder (12) and is used to limit the side cylinder (12) of the product (1) to be shaped to be concentric with the coaxial cone (52); the shaping ejector pin (54) is mounted on the output end of the heating element (53) and passes through the bearing seat (51) and the coaxial cone (52) and is used to extrude and shape the protrusion (13) of the product (1) to be shaped.

5. A shaping device for injection molded products according to claim 4, characterized in that: The shaping device further comprises a feed drive (6), wherein the feed drive (6) is mounted on the bottom box (3), and an output end of the feed drive (6) is connected to a bearing seat (51).

6. A shaping device for injection molded products according to claim 5, characterized in that: An industrial control box is arranged inside the bottom box (3), and the industrial control box is electrically connected to the feed drive (6) and the heating element (53) respectively.

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