Injection mold stacking structure

Abstract

The utility model discloses an injection mold stacking structure, which comprises two molds, a first straight line and a second straight line, each mold is provided with a mold opening and closing direction along the first straight line, and two end surfaces, on the first straight line, of each mold are connected with mold plates; the placing frame comprises a first bearing part, a second bearing part and a supporting part, the supporting part is connected between the first bearing part and the second bearing part, one of the first bearing part and the second bearing part abuts against the two mold plates of one mold, and the other one of the first bearing part and the second bearing part abuts against the two mold plates of the other mold. In the stacking process, the two mold plates of one mold are placed on the ground at the same time, then the containing frame is stacked above the mold on the basis, finally, the two mold plates of the other mold are placed on the containing frame at the same time, and at the moment, the two molds are not stacked in the mold opening and closing direction; and the double-color injection mold does not accumulate and produce errors during long-term stacking, so that the service life of the double-color injection mold is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of automobile manufacturing, and in particular to the stacking structure of injection molds. Background Technology

[0002] Two-color injection molding allows two plastic materials to be injection molded on the same injection molding machine in two stages, but the product only exits the mold once. Two-color injection molding is becoming increasingly popular in the market. This injection molding process can make the product look more attractive and easily change colors without painting. However, the development cost of the mold is high, and it is generally only suitable for high-value products.

[0003] Especially in the automotive manufacturing industry, different car models require different two-color injection molds for mass production, resulting in a large number of two-color injection molds accumulating in the factory. Each two-color injection mold consists of an outer panel mold and an inner panel mold, and both molds must work together to produce a complete part. Therefore, the placement of these two-color injection molds occupies a significant amount of space. The optimal solution is to stack the outer panel molds and inner panel molds together, which not only facilitates pairing but also saves considerable space.

[0004] The industry standard stacking method involves stacking the outer and inner panel molds in the direction of injection molding. If the outer and inner panel molds open and close vertically, since both have flat templates, stacking them is straightforward. However, in this configuration, two-color injection molds are prone to accumulating manufacturing errors under gravity. If left unused for an extended period, these errors can lead to the molds becoming unusable. Utility Model Content

[0005] The present invention aims to provide a stacking structure for injection molds that enables long-term stacking of two-color injection molds.

[0006] According to a first aspect embodiment of the present invention, the injection mold stacking structure includes:

[0007] The mold has two parts, each mold has an opening and closing direction along a first straight line, and each mold has a template connected to its two end faces on the first straight line.

[0008] The placement rack includes a first support portion, a second support portion, and a support portion, wherein the support portion is connected between the first support portion and the second support portion, and one of the first support portion and the second support portion abuts against two templates of one mold and the other abuts against two templates of another mold.

[0009] The injection mold stacking structure according to the present invention has at least the following beneficial effects: When stacking, the two templates of one mold are first placed on the ground or a pad simultaneously. At this time, the mold is not placed in the direction of mold opening and closing. Then, a placement rack is stacked on top of the mold. Finally, the two templates of another mold are placed on the placement rack simultaneously. Under the action of gravity, the first support part and the second support part of the placement rack abut against the two templates of each mold respectively. At this time, neither mold is stacked in the direction of mold opening and closing. Compared with the prior art, since neither mold is stacked in the direction of mold opening and closing, the two-color injection mold will not accumulate manufacturing errors when stacked for a long time, thereby extending the service life of the two-color injection mold.

[0010] According to some embodiments of the present invention, in order to improve safety performance, a first enclosure is provided on the outer edge of the first support portion, and the first support portion and the first enclosure together form a first groove.

[0011] According to some embodiments of this utility model, in order to improve safety performance, a second enclosure is provided on the outer edge of the second support portion. The second support portion and the second enclosure together form a second groove, which is disposed opposite to the first groove. If the first groove is disposed upward, then the second groove is disposed downward.

[0012] According to some embodiments of this utility model, the maximum distance between the two templates of the mold is less than the size of the first groove or the second groove, so as to prevent the mold from exceeding the space position defined by the enclosure.

[0013] According to some embodiments of this utility model, the length of each template is less than the size of the first groove or the second groove, so as to prevent the mold from exceeding the space position defined by the enclosure.

[0014] According to some embodiments of this utility model, each template has a chamfered corner, which divides the length of the template into a minimum length and a maximum length. The minimum length of each template is less than the size of the first groove or the second groove, and the maximum length of each template is not less than the size of the first groove or the second groove. Through this arrangement, a portion of the mold can extend beyond the space defined by the enclosure, but the bottom surface of the template still does not extend beyond the space defined by the enclosure, allowing the placement rack to accommodate molds of various sizes.

[0015] According to some embodiments of the present invention, the mold further includes a forming mold, two templates are respectively connected to both sides of the forming mold, the projected area of ​​the forming mold on the template is smaller than the area of ​​the template, and an accessory space is formed between the template and the forming mold, and multiple processing accessories are provided in the accessory space, which is beneficial to the layout of the mold.

[0016] According to some embodiments of this utility model, both the first support portion and the second support portion are provided with interconnected clearance holes. Since the molding die may contain machining components that extend beyond the template, such as hydraulic cylinders, clearance holes are necessary to allow for their movement.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a three-dimensional structural diagram of the injection mold stacking structure provided in this embodiment of the utility model;

[0020] Figure 2 yes Figure 1 The image shows a front view of the injection mold stack structure.

[0021] Figure 3 yes Figure 1 The diagram shown is an exploded perspective view of the stacked structure of the injection mold.

[0022] Figure 4 yes Figure 1 The side view of the injection mold stack structure shown;

[0023] Figure 5 yes Figure 4 The diagram shows the stacked structure of injection molds when changing to different molds.

[0024] In the attached diagram: 100 - placement rack, 200 - mold, 210 - outer mold, 220 - inner mold, 230 - forming mold, 240 - template, 250 - accessory space, 110 - first support part, 120 - second support part, 130 - support part, 111 - first enclosure, 112 - first groove, 121 - second enclosure, 101 - clearance hole, 102 - supporting frame, 201 - chamfer. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] like Figures 1 to 3 As shown, the injection mold stacking structure according to a first aspect embodiment of the present invention includes a placement rack 100 and two molds 200, which may be an outer mold 210 and an inner mold 220 of a two-color injection mold. For ease of description below, it is assumed that the two molds 200 are stacked in a vertical direction. In this embodiment, the upper mold 200 can be defined as the outer mold 210, and the lower mold 200 can be defined as the inner mold 220.

[0030] Both the outer mold 210 and the inner mold 220 have an opening and closing direction along the first straight line. This means that the moving molds of both molds 200 can reciprocate along the first straight line during processing. Since the two molds 200 are stacked vertically, the first straight line cannot be set along the vertical direction to avoid manufacturing errors caused by gravity during long-term stacking. Although this invention does not limit the specific setting direction of the first straight line, this embodiment preferably sets the first straight line orthogonal to the vertical direction.

[0031] Specifically, each mold 200 includes a forming mold 230 and two templates 240. The forming mold 230 is the core module of the mold 200, and it includes at least a moving mold, a fixed mold, a cavity, a runner, an ejection mechanism, and other components. However, since this utility model does not improve the forming mold 230, the forming mold 230 can use existing technology. This utility model does not elaborate on the specific structure of the existing forming mold 230.

[0032] Both end faces of the forming mold 230 are connected to templates 240. The two templates 240 of the mold 200 are parallel and spaced apart along a first straight line. The two templates 240 serve as components for connecting the mold 200 to other devices. Their length and width dimensions are larger than the corresponding dimensions of the forming mold 230; that is, the projected area of ​​the forming mold 230 on the template 240 is smaller than the area of ​​the template 240 itself. This allows a component space 250 to be formed between the template 240 and the forming mold 230. The component space 250 contains multiple processing components (not shown in the attached drawings), such as hydraulic cylinders, air cylinders, oil pipes, and controllers. This facilitates the layout of the mold 200. Because the length and width dimensions of the two templates 240 of the mold 200 are larger than the corresponding dimensions of the forming mold 230, placing both templates 240 of the mold 200 simultaneously on the ground or a mat keeps the forming mold 230 away from the ground or mat, preventing contaminants on the ground or mat from directly contaminating the forming mold 230.

[0033] It is understandable that when the two templates 240 of the mold 200 are placed on the ground or on a pad at the same time, the mold 200 is not placed in the direction of opening and closing. Since the direction of opening and closing of the mold 200 is in a different position from the direction of gravity, the mold 200 will not accumulate manufacturing errors due to gravity when it is placed for a long time.

[0034] In addition, the placement rack 100 includes a first support portion 110, a second support portion 120, and a support portion 130. The first support portion 110 and the second support portion 120 are specifically support plates, and the support portion 130 is specifically a plurality of I-beam structural steels. The support portion 130 is welded between the first support portion 110 and the second support portion 120, so that the first support portion 110 and the second support portion 120 can be fixedly connected together in a spaced manner to form a stable structure.

[0035] like Figure 2 and Figure 4As shown, to improve safety performance, the outer edge of the first support portion 110 is provided with a first enclosure 111, and the first support portion 110 and the first enclosure 111 together form a first groove 112. Similarly, the outer edge of the second support portion 120 is provided with a second enclosure 121, and the second support portion 120 and the second enclosure 121 together form a second groove (not shown in the figure), and the second groove is arranged back-to-back with the first groove 112. That is, if the first groove 112 is arranged upward, then the second groove is arranged downward; or, if the first groove 112 is arranged downward, then the second groove is arranged upward.

[0036] In order to place the mold 200 inside the first groove 112 or the second groove, the maximum distance between the two templates 240 of the mold 200 is less than the size of the first groove 112 or the second groove, and the length of each template 240 is less than the size of the first groove 112 or the second groove, so as to prevent the mold 200 from exceeding the space position defined by the enclosure, thereby preventing the mold 200 from falling into the gap between the placement rack 100 and the enclosure.

[0037] Using the above structure, when stacking, the two templates 240 of the inner mold 220 are first placed on the ground or a pad. At this time, the inner mold 220 is not placed in the direction of mold opening and closing. Then, the placement rack 100 is stacked on top of the inner mold 220. Finally, the two templates 240 of the outer mold 210 are placed on the placement rack 100. Under the action of gravity, the first support part 110 and the second support part 120 of the placement rack 100 respectively abut against the two templates 240 of each mold 200. At this time, neither of the two molds 200 is stacked in the direction of mold opening and closing, so that the two-color injection molds will not accumulate manufacturing errors when stacked for a long time, thereby extending the service life of the two-color injection molds.

[0038] For ease of understanding, in this embodiment, the upward-facing groove can be defined as the first groove 112, and the downward-facing groove can be defined as the second groove. In this case, the first support portion 110 is located above the second support portion 120.

[0039] like Figure 2 As shown, in some embodiments of this utility model, both the first support portion 110 and the second support portion 120 are provided with interconnected clearance holes 101, so that both the first support portion 110 and the second support portion 120 form a support frame 102. All support strips of the support frame 102 have equal width, and the two main support strips are fully supported by the support portion 130. Since the molding die 230 may contain processing accessories that can extend beyond the template 240, such as hydraulic cylinders, clearance holes 101 are required to allow for clearance.

[0040] To save costs, the size of the clearance hole 101 should not be less than 70%. To provide reliable support for the mold 200 to the greatest extent, neither of the two templates 240 of the mold 200 passes through the clearance hole 101. At this time, both templates 240 of the mold 200 abut against the two main supporting edge strips of the supporting frame 102. If any template 240 of the mold 200 passes through the clearance hole 101, it means that the mold 200 is not compatible with the placement rack 100. In this case, a placement rack 100 with smaller dimensions should be selected, and the mold 200 should not be forcibly placed on the incompatible placement rack 100.

[0041] like Figure 5 As shown, in some embodiments, each template 240 has a chamfer 201 at its corners, such that the bottom edge length of the template 240 is less than the designed length of the template 240. In this embodiment, the bottom edge length of the template 240 can be defined as the minimum length of the template 240, and the designed length of the template 240 can be defined as the maximum length of the template 240. In order to place the mold 200 in the first groove 112 or the second groove, the minimum length of each template 240 is less than the size of the first groove 112 or the second groove, and the maximum length of each template 240 is not less than the size of the first groove 112 or the second groove. Through the above settings, a part of the mold 200 can extend beyond the space defined by the enclosure, but the bottom surface of the template 240 still does not extend beyond the space defined by the enclosure, so that the placement rack 100 can accommodate more molds 200 of different specifications.

[0042] Of course, even if template 240 has a chamfer 201, its maximum length can still be less than the size of the first groove 112 or the second groove. In this case, please refer to the attached document. Figure 4 However, it is not limited to the embodiments described above.

[0043] It should be further explained that, in addition to stacking the outer mold 210 and the inner mold 220 vertically, three molds 200 can be stacked vertically by adding a placement rack 100 and molds 200, which can further reduce the storage space of the molds 200. However, the drawback of three-layer stacking is that it is not possible to remove only the mold 200 located on the lower layer. If you want to remove the mold 200 located on the lower layer, you must first remove the mold 200 located on the upper layer. Since two-color injection molds require the cooperation of the outer mold 210 and the inner mold 220 when in use, if only two molds 200 are stacked vertically, both need to be removed simultaneously when in use, resulting in wasted effort. In general, for stacking two-color injection molds, double-layer stacking is recommended; for stacking ordinary molds, double-layer or triple-layer stacking can be used, depending on the factory space and the frequency of use of the molds 200. For example, molds 200 with low usage frequency can be placed on the lower layer, and molds 200 with high usage frequency can be placed on the upper layer.

[0044] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A stacked structure for injection molds, characterized in that, include: Two molds (200) are provided, each mold (200) has an opening and closing direction along a first straight line, and each mold (200) has a template (240) connected to its two end faces on the first straight line; The placement rack (100) includes a first support portion (110), a second support portion (120), and a support portion (130). The support portion (130) is connected between the first support portion (110) and the second support portion (120). One of the first support portion (110) and the second support portion (120) abuts against two templates (240) of one mold (200), and the other abuts against two templates (240) of the other mold (200).

2. The injection mold stacking structure according to claim 1, characterized in that: The outer edge of the first support portion (110) is provided with a first enclosure (111), and the first support portion (110) and the first enclosure (111) together form a first groove (112).

3. The injection mold stacking structure according to claim 2, characterized in that: The outer edge of the second support portion (120) is provided with a second enclosure (121), and the second support portion (120) and the second enclosure (121) together form a second groove, which is arranged opposite to the first groove (112).

4. The injection mold stacking structure according to claim 3, characterized in that: The maximum distance between the two templates (240) of the mold (200) is less than the size of the first groove (112) or the second groove.

5. The injection mold stacking structure according to claim 3, characterized in that: The length of each of the templates (240) is less than the size of the first groove (112) or the second groove.

6. The injection mold stacking structure according to claim 3, characterized in that: Each of the templates (240) has a chamfer (201) at its corners. The chamfer (201) divides the length of the template (240) into a minimum length and a maximum length. The minimum length of each template (240) is less than the size of the first groove (112) or the second groove, and the maximum length of each template (240) is not less than the size of the first groove (112) or the second groove.

7. The injection mold stacking structure according to claim 1, characterized in that: The mold (200) further includes a forming mold (230), and two templates (240) are respectively connected to both sides of the forming mold (230). The projected area of ​​the forming mold (230) on the template (240) is smaller than the area of ​​the template (240). An accessory space (250) is formed between the template (240) and the forming mold (230), and multiple processing accessories are provided in the accessory space (250).

8. The injection mold stacking structure according to claim 1, characterized in that: Both the first support portion (110) and the second support portion (120) are provided with interconnected clearance holes (101).

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