A shaping tool for large-format plastic part flanges

Abstract

This invention relates to a shaping fixture for large-format plastic flanges. The shaping fixture includes a base and shaping mechanisms, each arranged around the central axis of the base. Each shaping mechanism includes an inner adapter block and an outer adapter block. The inner adapter block has an inner adapter surface for fitting the inner circumferential surface of the large-format plastic flange and a lower adapter surface for supporting the annular bottom surface of the large-format plastic flange. The outer adapter block has an outer adapter surface for fitting the outer circumferential surface of the large-format plastic flange. The inner adapter block is fixed on the base, and the outer adapter block is slidably disposed on the inner adapter block or the base in an inward and outward direction. The outer adapter block has a clamping position and a releasing position during its sliding stroke. In the clamping position, the large-format plastic flange is clamped by the cooperation of the outer adapter surface and the inner adapter surface. In the releasing position, the large-format plastic flange is released. By shaping the large-format plastic flange through multi-point, inward and outward clamping, the flange part of the plastic product is not easily deformed after demolding.

Description

Technical Field

[0001] This invention relates to the field of plastic molding technology, and more specifically to a shaping tooling for large-format plastic flanges. Background Technology

[0002] Plastic parts are plastic products. Large-format plastic parts with a large surface area are required in some large equipment, such as large-format spherical shell plastic parts. The structure of such large-format plastic parts is as follows: Figure 1 As shown, the main body of the large-format plastic part 100 is a spherical shell with a certain thickness. The main body formed by the spherical shell is the spherical shell body 101. The inner and outer surfaces of the spherical shell body are spherical crowns, not complete spherical surfaces. The lower edge of the spherical shell body is provided with a flange 102, which is the flange of the large-format plastic part. The flange 102 is horizontally turned outward based on the spherical shell body 101. The flange 102 has an inner circumferential surface 103, an outer circumferential surface 104, and an annular bottom surface 105. The annular bottom surface is flat and faces downward. The upper part of the inner circumferential surface is in contact with the inner surface of the spherical shell body, and the lower part of the inner circumferential surface is in contact with the annular bottom surface. The outer circumferential surface includes an outer vertical surface and an outer arc surface. The lower part of the outer vertical surface is in contact with the annular bottom surface. The outer arc surface is an upwardly convex arc surface and serves as a transition surface between the outer vertical surface and the outer surface of the spherical shell body. The upper part of the outer vertical surface and the lower part of the outer arc surface are smoothly connected, and the upper part of the outer arc surface transitions to the outer surface of the spherical shell body with a rounded corner.

[0003] For large-format plastic parts, after injection molding, the ejection system typically removes the part from the mold, allowing it to cool naturally. However, since the demolded part hasn't reached room temperature, it retains some deformation capacity. This is especially true for large-format spherical shell parts with flange outer diameters greater than 2m, which have poor rigidity and are prone to instability, deformation, and warping. The flange is the assembly interface, and its dimensions directly affect product quality; deformation of the flange area impacts overall product quality. Furthermore, because the upward-facing outer arc of the flange on large-format plastic parts is narrow and convex, and the inner side of the flange also has a convex outer surface of the spherical shell body, conventional quick-clamping fixtures are unreliable and prone to interference with the outer surface of the spherical shell body, making them unsuitable for most applications. Therefore, a tooling solution suitable for shaping flanges of such large-format plastic parts is needed to aid in cooling and shaping, reducing flange deformation. Summary of the Invention

[0004] The purpose of this invention is to provide a shaping tool for large-format plastic flanges to solve the problem of easy deformation of existing large-format plastic flanges.

[0005] The technical solution of the present invention for the standardized tooling for large-format plastic flanges is as follows:

[0006] A shaping fixture for large-format plastic flanges includes a base and shaping mechanisms mounted on the base. The base has a vertically extending central axis and radially extending inwards and outwards. Two or more shaping mechanisms are provided, each arranged circumferentially around the central axis. Each shaping mechanism includes an inner adapter block and an outer adapter block. The inner adapter block has an inner adapter surface for fitting with the inner circumferential surface of the large-format plastic flange and a lower adapter surface for supporting the annular bottom surface of the large-format plastic flange. The outer adapter block has a... The outer adapter surface of the large-format plastic flange is adapted to the inner adapter block, which is fixed on the base. The outer adapter block is slidably disposed on the inner adapter block or the base in the inward and outward directions. The outer adapter block has a clamping position and a loosening position in its sliding stroke. When the outer adapter block is in the clamping position, it is used to clamp the large-format plastic flange by cooperating with the inner adapter surface through the outer adapter surface. The outer adapter surface, inner adapter surface and lower adapter surface cooperate to form a shaping groove for shaping the large-format plastic flange. When the outer adapter block is in the loosening position, it is used to loosen the large-format plastic flange.

[0007] Beneficial effects: By setting up various shaping mechanisms, and using the inner and outer adapter blocks of the shaping mechanisms that can move relatively in the inward and outward directions to clamp the large-format plastic flange from the inside and outside, the shaping of the large-format plastic part is avoided due to the influence of the upper and lower space of the flange, thus meeting the shaping requirements of the flange. After the large-format plastic part is placed on the shaping mechanism, the inner adapter block is covered by the large-format plastic part, and the outer adapter block is located on the outer periphery of the large-format plastic part, which facilitates the clamping operation and is suitable for shaping large-format plastic parts. The inner and lower adapter surfaces on the inner adapter block are adapted to the inner peripheral surface and the annular bottom surface of the large-format plastic flange, and the outer adapter surface on the outer adapter block is adapted to the outer peripheral surface of the large-format plastic flange. Thus, when the outer adapter block is in the clamping position, the outer adapter surface, inner adapter surface, and lower adapter surface cooperate to form a shaping groove that matches the shape of the large-format plastic flange, thereby shaping the large-format plastic flange. In this way, the large-format plastic flange is shaped by multiple points and internal and external clamping, making the flange part less prone to deformation after the plastic product is demolded.

[0008] Furthermore, the external adapter surface includes an arc-shaped surface and a vertical surface. The arc-shaped surface is located on the upper side of the vertical surface. The vertical surface is used to adapt to the outer vertical surface of the outer periphery of the large-format plastic flange, and the arc-shaped surface is used to adapt to the outer arc surface of the outer periphery of the large-format plastic flange.

[0009] Beneficial effects: When the outer adapter block moves inward and outward to clamp the large-format plastic flange, the arc-shaped part can press against the outer arc surface of the outer circumference of the large-format plastic flange, and the arc-shaped part can form a downward pressure on the flange, which is beneficial to the flange shaping.

[0010] Furthermore, the outer adapter surface also includes a rounded corner adapter located on the upper side of the curved surface. The rounded corner adapter is used to adapt to the rounded transition at the junction of the outer peripheral surface of the large-format plastic flange and the outer surface of the spherical shell body.

[0011] Beneficial effects: After clamping the flange, the rounded corner fitting part can fit and conform to the rounded corner transition between the outer circumference of the flange and the outer surface of the spherical shell body, which helps to ensure the shaping effect of the entire flange part.

[0012] Furthermore, the inner adapter block is also provided with an inner surface adapter surface, which is used to adapt to the inner surface of the spherical shell body of the large-format plastic part, and the inner surface adapter surface is in contact with the inner adapter surface.

[0013] Beneficial effects: By setting an inner surface adapter that connects with the inner adapter surface, the inner adapter block can not only support the flange part, but also the part of the spherical shell body adjacent to the flange part, which helps to ensure the shaping effect.

[0014] Furthermore, the outer adapter block is slidably mounted on the inner adapter block.

[0015] Beneficial effect: Installing the outer adapter block and the inner adapter block together helps to reduce the impact of installation errors on the shaping groove.

[0016] Furthermore, the inner or outer adapter block is provided with a scale, which is used to measure the displacement of the outer adapter block in the inward and outward directions.

[0017] Beneficial effect: By measuring the displacement of the external adapter block using a scale, the width of the flange in the inner and outer directions can be easily measured.

[0018] Furthermore, one of the outer adapter block and the inner adapter block is provided with a T-shaped guide rail, and the other is provided with a T-shaped groove. The T-shaped guide rail and the T-shaped groove cooperate to allow the outer adapter block to be slidably installed on the inner adapter block.

[0019] Beneficial effects: By using the T-shaped guide rail and T-shaped groove, the outer adapter block can be guided and slid on the inner adapter block, and the upper and lower limits of the outer adapter block can be set.

[0020] Furthermore, the fixing mechanism also includes a locking component, which is an adjusting bolt. The outer adapter block has bolt holes extending in the inward and outward directions, and the inner adapter block has an adjusting threaded hole corresponding to the bolt holes. The adjusting bolt passes through the bolt holes and is threaded into the adjusting threaded hole. The adjusting bolt is used to fix the outer adapter block on the inner adapter block.

[0021] Beneficial effects: By turning the adjusting bolt in the inward and outward directions, the outer adapter block can be slid to the clamped or loosened position. When the outer adapter block is in the loosened position, the threaded connection between the adjusting bolt and the adjusting threaded hole prevents the outer adapter block from falling off.

[0022] Furthermore, the shaping mechanism also includes a spring, which is sleeved on the adjusting bolt. The inner end of the spring presses against the inner adapter block, and the outer end presses against the outer adapter block. The spring is used to apply an outward elastic force to the outer adapter block.

[0023] Beneficial effects: By setting a spring, when the adjusting bolt is turned outward, the spring pushes the outer adapter block to slide outward, so that the outer adapter block slides to the loose position, which does not require manual operation and makes it convenient to pick up and put down plastic parts.

[0024] Furthermore, the base includes a circular support platform, which includes an inner ring, an outer ring, and spokes disposed between the inner and outer rings, with a shaping mechanism installed at the spokes.

[0025] Beneficial effects: The circular support platform, which is formed by the inner ring, outer ring and spokes into a spoke-type bracket structure, is conducive to the cooling of large-format plastic parts, and the inner and outer extended spokes can be used for the installation of the shaping mechanism, which helps to reduce the size of the base. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of a large-format plastic part;

[0027] Figure 2 This is a top view schematic diagram of the shaping tooling for large-format plastic flanges according to the present invention;

[0028] Figure 3 for Figure 2 A partial schematic diagram of the shaping mechanism on the base;

[0029] Figure 4 for Figure 2 A partial view of the sectional view;

[0030] Figure 5 for Figure 4 A schematic diagram of the installation structure of the outer and inner adapter blocks;

[0031] Figure 6 for Figure 2 A side view of the connection between the inner and outer adapter blocks of the shaping mechanism;

[0032] Figure 7 for Figure 6 Side view.

[0033] In the diagram: 100, large-format plastic part; 101, spherical shell body; 102, flange; 103, inner circumferential surface; 104, outer circumferential surface; 105, annular bottom surface; 1, base; 11, circular support platform; 12, support column; 2, shaping mechanism; 21, inner adapter block; 211, inner adapter surface; 212, lower adapter surface; 213, inner surface adapter surface; 22, outer adapter block; 221, outer adapter surface; 222, scale; 23, adjusting bolt; 24, spring. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0036] It should be noted that relational terms such as "first" and "second" that may appear in the specific embodiments of the present invention are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the possible phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] In the description of this invention, unless otherwise explicitly specified and limited, the term "provided with" should be interpreted broadly. For example, the object "provided with" can be a part of the body, or it can be separately arranged from the body and connected to the body. This connection can be a detachable connection or a non-detachable connection. Those skilled in the art can understand the specific meaning of the above terms in this invention through specific circumstances.

[0039] The present invention will be further described in detail below with reference to embodiments.

[0040] Embodiment 1 of the present invention for the shaping tooling of large-format plastic flanges:

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the shaping fixture for large-format plastic flanges includes a base 1 and various shaping mechanisms 2 set on the base 1. The shaping mechanism 2 includes an inner adapter block 21, an outer adapter block 22, an adjusting bolt 23, and a spring 24. The outer adapter block 22 is slidably set relative to the inner adapter block 21 in the inward and outward directions. After the large-format plastic part 100 is placed on the inner adapter block 21, the outer adapter block 22 can be moved inward by turning the adjusting bolt 23, thereby cooperating with the inner adapter block 21 to clamp the flange 102. The flange 102 can be released by turning the adjusting bolt 23 under the push of the spring 24.

[0042] The base 1 includes a circular support platform 11 and a support column 12. The circular support platform 11 includes an inner ring, an outer ring, and eight spokes between the inner and outer rings. The base 1 has a central axis extending vertically and radially extending inwards and outwards. The centerline of the circular support platform 11 is collinear with the central axis of the base. The inner and outer rings are coaxial with respect to the central axis. The radial direction of the circular support platform 11 is consistent with the radial direction of the base 1. The spokes extend radially along the circular support platform 11, with the inner end of the spoke connected to the inner ring and the outer end connected to the outer ring. The support column 12 is supported below the circular support platform 11 and connects to the junction of the spokes and the outer ring. The support column 12 is cylindrical and has a through hole extending vertically. The lower side of the junction of the spokes and the outer ring has a threaded hole. The through hole and the threaded hole of the support column 12 correspond to each other, and the support column 12 is fixed to the circular support platform 11 by long bolts. Four lifting rings are provided on the inner ring for easy lifting.

[0043] There are eight shaping mechanisms 2, each arranged around the central axis in a circumferential direction, and each shaping mechanism 2 is located above the junction of each spoke and the outer ring body. The inner adapter block 21 is a long strip extending in the inward and outward directions. The inner end of the inner adapter block 21 is fixed to the central support platform of the base 1 by screws, and the outer end extends outward beyond the base 1. The outer adapter block 22 is slidably disposed at the outer end of the inner adapter block 21.

[0044] like Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, the outer end of the inner adapter block 21 is provided with a T-shaped groove, which extends in the inward and outward directions. The T-shaped groove has an upward opening and an outward opening. The lower end of the outer adapter block 22 is provided with an inward and outward extending T-shaped guide rail. The T-shaped guide rail cooperates with the T-shaped groove to allow the outer adapter block 22 to be slidably mounted on the inner adapter block 21.

[0045] The inner adapter block 21 has a lower adapter surface 212, an inner adapter surface 211, and an inner surface adapter surface 213 on the inner side of the T-slot. The lower adapter surface 212 is used to mate with the annular bottom surface 105 of the large-format plastic flange, the inner adapter surface 211 is used to mate with the inner circumferential surface 103 of the large-format plastic flange, and the inner surface adapter surface 213 is used to mate with the inner surface of the spherical shell body 101 of the large-format plastic part 100. The lower adapter surface 212 faces upward, and the inner adapter surface 211 faces outward. The inner surface 211 and the inner surface mating surface 213 are smoothly connected to form a continuous curved surface. Since there is a rounded transition between the inner circumferential surface 103 of the flange 102 and the inner surface of the spherical body 101, there is also a corresponding rounded transition between the inner mating surface 211 and the inner surface mating surface 213. The inner circumferential surface 103 of the flange 102 is an arc surface, and correspondingly, the inner mating surface 211 is an arc surface. The annular bottom surface 105 of the flange 102 is a downward-facing plane, and correspondingly, the lower mating surface 212 is an upward-facing plane.

[0046] The inner side of the outer adapter block 22, above the T-shaped guide rail, has an inwardly facing outer adapter surface 221. The outer adapter surface 221 is used to mate with the outer peripheral surface 104 of the large-format plastic flange. The outer adapter surface 221 includes an arc-shaped surface and a vertical surface. The arc-shaped surface is located above the vertical surface. The vertical surface is used to mate with the outer vertical surface of the outer peripheral surface 104 of the large-format plastic flange, and the arc-shaped surface is used to mate with the outer arc surface of the outer peripheral surface 104 of the large-format plastic flange. Since the outer vertical surface of the outer peripheral surface 104 of the flange 102 is a vertically extending rotary surface, the vertical surface of the outer adapter surface 221 is correspondingly a vertically extending rotary surface. The outer arc surface of the outer peripheral surface 104 of the flange 102 is an upwardly sloping arc surface, and correspondingly, the arc-shaped surface of the outer adapter surface 221 is a downwardly sloping arc surface. The outer adapter surface 221 also includes a rounded corner adapter located on the upper side of the arc surface. The rounded corner adapter is an arc surface. The rounded corner adapter is used to adapt to the rounded transition at the junction of the outer peripheral surface of the large-format plastic flange and the outer surface of the spherical shell body. The rounded corner adapter can adapt and fit the rounded transition surface between the outer peripheral surface of the flange and the outer surface of the spherical shell body.

[0047] The outer adapter block 22 has a clamping position and a releasing position during its sliding stroke. When in the clamping position, the outer adapter block 22 is used to clamp the large-format plastic flange through the cooperation of the outer adapter surface 221 and the inner adapter surface 211. When in the releasing position, the outer adapter block 22 is used to release the large-format plastic flange. When the outer adapter block 22 is in the clamping position, the outer adapter surface 221, the inner adapter surface 211, the lower adapter surface 212, and the inner surface adapter surface 213 cooperate to form a shaping groove for shaping the large-format plastic flange. The shape of the shaping groove is similar to the outer contour shape of the flange 102. The inner adapter surface 211 can be in contact with the inner circumferential surface 103 of the flange 102, and the outer adapter surface 221 can be in contact with the outer circumferential surface 104 of the flange 102, thereby playing a shaping role for the flange 102 after clamping it. At the same time, since there is also an inner surface adapter surface 213 on the inner side... The inner surface of the spherical shell body 101 is fitted and supported, so that the inner adapter block 21 can support not only the flange 102 part, but also the part of the spherical shell body 101 adjacent to the flange 102 part. This helps to ensure the shaping effect of the flange 102. Moreover, the arc-shaped part of the outer adapter surface 221 can press against the outer arc surface of the outer peripheral surface 104 of the large-format plastic flange. The force in the inner and outer directions of the outer adapter block 22 can be converted into a downward pressure on the flange 102 through the arc-shaped part, which helps to ensure reliable clamping and the shaping of the flange 102. Furthermore, the outer adapter block 22 is slidably installed on the inner adapter block 21. The inner adapter block 21 and the outer adapter block 22 cooperate to form a shaping groove, avoiding the influence of errors of other parts and reducing the impact of installation errors on the shaping groove.

[0048] The outer adapter block 22 has a bolt hole at the center of the T-shaped guide rail, extending inward and outward. The inner adapter block 21 has an adjusting threaded hole corresponding to the bolt hole. The adjusting bolt 23 passes through the bolt hole and is threaded into the adjusting threaded hole. The adjusting bolt 23 is used to fix the outer adapter block 22 onto the inner adapter block 21. By turning the adjusting bolt 23 in the inward and outward directions, the outer adapter block 22 can slide to the clamped or loosened position. When the outer adapter block 22 is in the loosened position, the threaded connection between the adjusting bolt 23 and the adjusting threaded hole prevents the outer adapter block 22 from falling off. The adjusting bolt 23 constitutes a locking element. When the adjusting bolt 23 is turned inward to slide the outer adapter block 22 inward to the clamped position, the outer adapter block 22 is locked and held in the clamped position.

[0049] The bolt holes on the outer adapter block 22 are stepped holes, including an inner large hole section and an outer small hole section. The diameter of the outer small hole section is matched with the outer diameter of the screw section of the adjusting bolt 23, and the diameter of the inner large hole section is larger than the diameter of the outer small hole section. The adjusting threaded hole on the inner adapter block 21 is also a stepped hole, including an outer large hole section and an inner small hole section. The inner small hole section has an internal thread for the adjusting bolt 23 to be threaded. The outer large hole section has the same diameter as the inner large hole section on the outer adapter block 22 to form a spring mounting hole. The shaping mechanism 2 also includes a spring 24, which is sleeved on the adjusting bolt 23 and located in the spring mounting hole. The inner end of the spring 24 extends into the outer large hole section and presses against the inner adapter block 21, while the outer end extends into the inner large hole section and presses against the outer adapter block 22. The spring 24 is used to apply an outward elastic force to the outer adapter block 22. When the adjusting bolt 23 is turned outward, the spring 24 can push the outer adapter block 22 to slide outward, allowing the outer adapter block 22 to slide to the loosened position without manual operation, facilitating the removal and placement of plastic parts. The head of the adjusting bolt 23 protrudes from the bolt hole on the outer adapter block 22 for easy operation.

[0050] The depth of the T-slot in the inner adapter block 21 in the vertical direction is consistent with the height of the T-shaped guide rail in the vertical direction of the outer adapter block 22, so that the upper surface of the part of the inner adapter block 21 with the T-slot is in contact with the lower surface of the outer adapter block 22. The side surface of the outer adapter block 22 along the circumference of the circular support platform 11 is flush with the side surface of the inner adapter block 21 along the circumference of the circular support platform 11. The side surface of the outer adapter block 22 along the circumference of the circular support platform 11 is provided with a scale 222, and the scale 222 is set in the inward and outward directions and is consistent with the inner adapter block 22. Adjacent to each other, the scale 222 is used to measure the displacement of the outer adapter block 22 in the inward and outward directions. The inner adapter block 21 is provided with a mark. The displacement of the outer adapter block 22 is measured by corresponding the mark with each scale line of the scale 222. The width value of the shaping groove in the inward and outward directions when the mark corresponds to the 0 scale line can be used as a known preset value. When the mark corresponds to other scale lines, the width value of the shaping groove is obtained by adding the preset value and the scale value. Then, the width of the flange 102 shaped by the shaping groove at this time can be measured in the inward and outward directions.

[0051] In use, turn the adjusting bolt 23 outwards. Under the push of the spring 24, the outer adapter block 22 moves outwards to the loosened position, so that the gap between the inner adapter block 21 and the outer adapter block 22 is sufficient for the flange 102 to be inserted. Place the large-format plastic part 100 on the shaping mechanism 2. The flange 102 is supported on the inner adapter block 21. Then turn the adjusting bolt 23 inwards, which drives the outer adapter block 22 to move inwards to the clamping position, so that a shaping groove is formed between the inner adapter block 21 and the outer adapter block 22. The inner adapter surface 211, the outer adapter surface 221, and the lower adapter surface 212 are respectively in contact with the corresponding surfaces on the flange 102, and the flange 102 is clamped.

[0052] The large-format plastic flange is shaped by clamping the inner and outer adapter blocks 21 and 22, which can move relative to each other in the inward and outward directions. This avoids the influence of insufficient clamping space in the vertical direction of the flange 102 and meets the shaping requirements of the flange 102. After the large-format plastic part is placed on the shaping mechanism, the inner adapter block is covered by the large-format plastic part, while the sliding outer adapter block is located on the outside of the large-format plastic part, which facilitates external clamping operations. This method is suitable for shaping large-format plastic parts. Multiple shaping mechanisms distributed circumferentially form multi-point clamping, reducing product deformation during the cooling process. By shaping the large-format plastic flange through multi-point, inward and outward clamping, the flange area is less prone to deformation after demolding, reducing warping deformation caused by insufficient rigidity and uneven shrinkage of the large-format plastic part. Moreover, the position of the outer adapter block can be flexibly adjusted using the scale and adjusting bolts on it to meet the shaping requirements of flanges of different sizes, and it also has the function of quickly measuring the width of the flange in the inward and outward directions.

[0053] Embodiment 2 of the present invention for the shaping tooling of large-format plastic flanges:

[0054] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the outer adapter surface includes an arc-shaped surface and a vertical surface. The arc-shaped surface is located above the vertical surface, and the vertical surface is a rotating surface with the central axis as its center of rotation. The vertical surface is used to adapt to the outer vertical surface of the large-format plastic flange, and the arc-shaped surface is used to adapt to the outer arc surface of the large-format plastic flange. In this embodiment, however, the outer adapter surface is a vertically extending rotating surface with the central axis as its center of rotation. The outer adapter surface only adapts to and contacts the outer vertical surface of the flange's outer periphery, and does not contact the outer arc surface of the flange's outer periphery. In this case, only the internal and external clamping forces are used to prevent the flange from warping.

[0055] Embodiment 3 of the present invention for the shaping tooling of large-format plastic flanges:

[0056] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the inner adapter surface and the lower adapter surface are smoothly connected and situated on a continuous curved surface. In this embodiment, the inner adapter surface and the lower adapter surface are spaced apart, and the width of the lower adapter surface in the inward and outward directions is smaller than the width of the flange's annular bottom surface in the inward and outward directions.

[0057] Embodiment 4 of the present invention for the shaping tooling of large-format plastic flanges:

[0058] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the outer adapter block is slidably mounted on the inner adapter block. In this embodiment, a T-shaped groove is provided on the base, the inner adapter block is located inside the T-shaped groove, and a T-shaped guide rail is provided on the outer adapter block. The T-shaped guide rail extends into the T-shaped groove to enable the outer adapter block to be slidably mounted on the base.

[0059] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A shaping tool for large format plastic part flanges, characterized by, The system includes a base (1) and a shaping mechanism (2) mounted on the base. The base has a central axis extending vertically and radial axes extending inward and outward. The shaping mechanism has two or more components arranged around the central axis in a circumferential direction. The shaping mechanism includes an inner adapter block (21) fixed on the base and an outer adapter block (22) slidably mounted on the inner adapter block or the base in an inward and outward direction. The inner adapter block has an inner adapter surface (211) for fitting with the inner circumferential surface (103) of the flange, a lower adapter surface (212) for supporting the annular bottom surface (105) of the flange, and an inner surface adapter surface for fitting with the inner surface of the spherical shell body of the large-format plastic part. The outer adapter block has a lower adapter surface (212) for fitting with the inner circumferential surface (103) of the flange. The outer adapter surface (221) of the flange's outer peripheral surface (104) is adapted to the flange. The outer adapter surface includes a vertical part for adapting to the outer vertical surface of the outer peripheral surface (104), an arc part located on the upper side of the vertical part for adapting to the outer arc surface of the outer peripheral surface (104), and a rounded corner adaptation part located on the upper side of the arc part for adapting to the rounded corner transition at the junction of the outer peripheral surface (104) and the outer surface of the spherical shell body. The outer adapter block has a clamping position and a releasing position in its sliding stroke. When the outer adapter block is in the clamping position, it is used to clamp the large-format plastic flange by cooperating with the inner adapter surface through the outer adapter surface. The outer adapter surface, the inner adapter surface, and the lower adapter surface cooperate to form a shaping groove for shaping the flange.

2. The molding tooling for flanges of large format plastic parts of claim 1, wherein, The vertical surface is a rotating surface that extends vertically up and down, and the arc surface is inclined downward and is used to adapt to the inclined upward outer arc surface of the outer peripheral surface (104) of the large-format plastic flange to form an inclined downward pressure on it when clamped.

3. The shaping tooling for large-format plastic flanges according to claim 2, characterized in that, The rounded corner adapter is an arc surface used to adapt and fit the rounded corner transition surface between the outer peripheral surface of the large-format plastic flange and the outer surface of the spherical shell body.

4. The shaping tooling for large-format plastic flanges according to claim 1, 2, or 3, characterized in that, The lower adapter surface, inner adapter surface, and inner surface adapter surface are smoothly connected to form a continuous curved surface.

5. The shaping tooling for large-format plastic flanges according to claim 1, 2, or 3, characterized in that, The outer adapter block (22) is slidably mounted on the inner adapter block (21).

6. The shaping tooling for large-format plastic flanges according to claim 5, characterized in that, The inner adapter block (21) or the outer adapter block (22) is provided with a scale (222), which is used to measure the displacement of the outer adapter block (22) in the inner and outer directions.

7. The shaping tooling for large-format plastic flanges according to claim 5, characterized in that, One of the outer adapter block (22) and the inner adapter block (21) is provided with a T-shaped guide rail, and the other is provided with a T-shaped groove. The T-shaped guide rail and the T-shaped groove cooperate to allow the outer adapter block (22) to slide on the inner adapter block (21).

8. The shaping tooling for large-format plastic flanges according to claim 1, 2, or 3, characterized in that, The fixing mechanism (2) also includes a locking component, which is an adjusting bolt (23). The outer adapter block (22) is provided with bolt through holes extending in the inner and outer directions, and the inner adapter block (21) is provided with adjusting thread holes corresponding to the bolt through holes. The adjusting bolt (23) passes through the bolt through holes and is threaded into the adjusting thread hole. The adjusting bolt (23) is used to fix the outer adapter block (22) on the inner adapter block (21).

9. The shaping tooling for large-format plastic flanges according to claim 8, characterized in that, The shaping mechanism (2) also includes a spring (24), which is sleeved on the adjusting bolt (23). The inner end of the spring (24) presses against the inner adapter block (21), and the outer end presses against the outer adapter block (22). The spring (24) is used to apply an outward elastic force to the outer adapter block (22).

10. The shaping tooling for large-format plastic flanges according to claim 1, 2, or 3, characterized in that, The base (1) includes a circular support platform (11), which includes an inner ring body, an outer ring body, and various spokes disposed between the inner ring body and the outer ring body. The shaping mechanism (2) is installed at the spokes.

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