Forming die for suspended ceiling profile

Abstract

The utility model relates to the technical field of sectional material mold equipment, in particular to a forming mold for a suspended ceiling sectional material. The suspended ceiling profile comprises a plurality of cantilevers, a plurality of connecting parts are arranged on the side faces of the cantilevers, and the wall thickness of the suspended ceiling profile is 0.8-1.2 mm. The forming die is characterized by comprising an upper die and a lower die, a plurality of flow dividing holes are formed in the upper die, and the area of the cross section of the top end of each flow dividing hole is smaller than that of the cross section of the bottom end of the flow dividing hole; the lower die is provided with a welding chamber, the depth of the welding chamber is 13-20mm, a die hole is formed in the welding chamber, a plurality of cantilever forming parts of the die hole are respectively provided with a flow choking table, the cross section of each flow choking table is fan-shaped, and the bottom end of the vertical side surface of each flow choking table is positioned at the edge of the corresponding cantilever forming part. The forming die has the advantages of being good in forming effect and high in product percent of pass.

Description

Technical Field

[0001] This utility model relates to the field of profile mold equipment technology, and in particular to a molding mold for ceiling profiles. Background Technology

[0002] Ceiling profiles used for suspended ceiling decoration possess strength, aesthetic appeal, and ease of installation. The two sides of these profiles are used to connect to walls, install light fixtures, cover plates, or decorative strips. They typically have multiple cantilever arms for connection, and their thin walls reduce weight and enhance aesthetics. However, the extrusion pressure during molding of thin-walled ceiling profiles is relatively high. Due to the shallow welding chamber depth of existing molding dies (approximately 5-8mm), the metal material fuses quickly within the welding chamber, resulting in defects such as material shortages or rough surfaces in the cantilever arms. Furthermore, it is difficult for different parts of the die to exit synchronously, leading to product bending. When the ceiling profile has long cantilever arms, material shortages are prone to occur at the connection points on the sides of the cantilever arms, resulting in poor molding quality and a low product qualification rate. Utility Model Content

[0003] The purpose of this utility model is to propose a molding die for ceiling profiles, which has the characteristics of good molding effect and high product qualification rate.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A molding die for a ceiling profile, the ceiling profile including multiple cantilever arms, the sides of the cantilever arms being provided with multiple connecting parts, the wall thickness of the ceiling profile being 0.8 to 1.2 mm, the molding die including an upper die and a lower die, the upper die having multiple diversion holes, the cross-sectional area of ​​the top end of the diversion hole being smaller than the cross-sectional area of ​​the bottom end;

[0006] The lower mold is provided with a welding chamber with a depth of 13-20mm. The welding chamber is provided with a mold hole. Multiple cantilever forming parts of the mold hole are provided with flow-blocking platforms. The cross-section of the flow-blocking platform is fan-shaped, and the bottom end of the vertical side of the flow-blocking platform is located at the edge of the cantilever forming part.

[0007] Furthermore, the flow-blocking platform has an inclined surface at one end near the center of the welding chamber, and the inclined surface is inclined in a direction away from the cantilever forming part.

[0008] Furthermore, the other end of the flow-blocking platform extends beyond the end of the cantilever forming part, and the distance between the other end of the flow-blocking platform and the end of the cantilever forming part is greater than 5mm.

[0009] Furthermore, the distance between the cantilever forming part and the edge of the welding chamber is 10-25mm.

[0010] Furthermore, the mold hole includes a first cantilever forming part, a second cantilever forming part, and a connecting cavity forming part. The first cantilever forming part is located at the top of the connecting cavity forming part, and the second cantilever forming part is located at the side of the connecting cavity forming part. The length of the first cantilever forming part is greater than the length of the second cantilever forming part.

[0011] The distance between the top edge of the welding chamber and the bottom edge of the upper mold is L1, and the distance between the bottom edge of the welding chamber and the bottom edge of the upper mold is L2, where L1 > L2.

[0012] Furthermore, a mold core is provided on the bottom surface of the upper mold, and the working belt of the mold core is located inside the forming part of the connecting cavity;

[0013] The top of the working strip of the mold core is surrounded by a boss, and the distance by which the boss extends beyond the working strip of the mold core corresponds to the wall thickness of the ceiling profile.

[0014] Furthermore, the lower die is sequentially provided with a first-stage air cutter, a second-stage air cutter, and a third-stage air cutter.

[0015] Furthermore, a concave ring is provided on the top edge of the lower mold, and a second abutting plane is formed between the welding chamber and the concave ring. The second abutting plane is provided with a plurality of mounting holes, and a pusher is provided in the mounting holes.

[0016] The bottom edge of the upper mold is provided with a convex ring, and the concave ring is used to mate with the convex ring. The convex ring and the diversion hole form a first abutting plane. Multiple mounting rods are fixed on the first abutting plane. The mounting rods are used to be inserted into the mounting hole and engaged with the push post. An elastic element is provided between the outer end of the bottom wall of the push post and the inner bottom wall of the mounting hole.

[0017] Furthermore, the mating surface of the convex ring is parallel to the axis of the mold, and the mating surface of the concave ring is an inclined surface, which is inclined along the top to the bottom of the forming mold toward the centerline axis of the mold.

[0018] The second abutting surface is provided with a slot, and the first abutting surface is provided with a pin. The slot and the pin engage to limit the upper mold and the lower mold. After the slot and the pin engage, there is a movable gap between the upper mold and the lower mold.

[0019] The technical solution provided by this utility model can include the following beneficial effects:

[0020] In this technical solution, by increasing the depth of the welding chamber to 13-20mm and simultaneously increasing the bottom area of ​​the diversion hole, the welding chamber can accommodate a larger amount of metal and distribute the metal more evenly within it. Furthermore, the metal entering through the diversion hole generates relatively uniform pressure within the welding chamber, allowing all parts of the ceiling profile to be extruded and formed synchronously from the die hole, ensuring the product's straightness. The flow-blocking platform on the side of the cantilever forming section prevents material shortages in the cantilever and connecting parts while improving their surface quality. Therefore, the molding die in this embodiment significantly improves the forming quality of the ceiling profile.

[0021] The interference fit between the concave and convex rings secures the two templates, simplifying template assembly and disassembly. Push pins within the mounting holes facilitate easy separation of the flow divider and forming molds. Even after the flow divider and forming plate separate, the slots and pins remain engaged, allowing for direct mold-making. Template assembly after mold-making is simple and quick. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of ceiling frame profiles;

[0023] Figure 2 This is a schematic diagram of the structure of a molding die for ceiling profiles according to one embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the top surface of the lower mold;

[0025] Figure 4 This is a schematic diagram of the structure of the bottom surface of the upper mold;

[0026] Figure 5 This is a schematic diagram of the marking spacing on the top surface of the lower mold;

[0027] Figure 6 This is a schematic diagram showing the fit between the mounting rod and the mounting hole;

[0028] Figure 7 This is a schematic diagram showing the fit between the locking pin and the locking slot;

[0029] Reference numerals: Ceiling profile 1, cantilever 11, connector 12;

[0030] Upper mold 2, flow channel 21, mold core 22, boss 221, working belt 222, first abutting plane 23, convex ring 24, mounting rod 25, retaining post 26;

[0031] Lower mold 3, welding chamber 31, mold hole 32, flow blocking platform 33, inclined surface 331, first cantilever forming part 34, second cantilever forming part 35, connecting cavity forming part 36, concave ring 37, second abutting plane 38, mounting hole 39, push post 391, elastic element 392, slot 30. Detailed Implementation

[0032] 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.

[0033] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0034] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The following is combined Figures 1 to 7 This invention describes a molding die for ceiling profiles provided in an embodiment of the present invention.

[0037] The ceiling profile formed by the molding die in this embodiment includes multiple cantilever arms 11, and multiple connecting parts 12 are provided on the sides of the cantilever arms 11. The wall thickness of the ceiling profile 1 is 0.8-1.2 mm. The molding die includes an upper die 2 and a lower die 3. The upper die 2 has multiple diversion holes 21, and the cross-sectional area of ​​the top end of the diversion hole 21 is smaller than the cross-sectional area of ​​the bottom end.

[0038] The lower mold 3 is provided with a welding chamber 31, the depth of which is 13-20mm. The welding chamber 31 is provided with a mold hole 32. Multiple cantilever forming parts of the mold hole 32 are respectively provided with a flow-blocking platform 33. The cross-section of the flow-blocking platform 33 is fan-shaped, and the bottom end of the vertical side of the flow-blocking platform 33 is located at the edge of the cantilever forming part.

[0039] In this technical solution, by increasing the depth of the welding chamber 31 to 13-20mm and simultaneously increasing the bottom area of ​​the diversion hole 21, the welding chamber 31 can accommodate a larger amount of metal and the metal can be evenly distributed within the welding chamber 31. Furthermore, the metal entering through the diversion hole 21 generates a more uniform pressure within the welding chamber 31, thereby enabling the various parts of the ceiling profile 1 to be extruded synchronously from the die hole 32, ensuring the straightness of the product. Simultaneously, the flow-blocking platform 33 on the side of the cantilever forming section increases the metal flow pressure within the cantilever forming section. Based on the cross-sectional design of the flow-blocking platform 33, the metal flows more smoothly through it, preventing turbulence and material shortages in the cantilever and connecting part 12, while also improving the surface quality of the cantilever and connecting part 12. Therefore, the molding die of this embodiment significantly improves the forming quality of the ceiling profile.

[0040] Preferably, the flow-blocking platform 33 has a slope 331 at one end near the center of the welding chamber 31, and the slope 331 is inclined away from the cantilever forming part. The slope 331 ensures the metal supply of the cantilever and further prevents turbulence, ensuring the surface quality of the cantilever. Furthermore, the other end of the flow-blocking platform 33 extends beyond the end of the cantilever forming part, and the distance L3 between the other end of the flow-blocking platform 33 and the end of the cantilever forming part is greater than 5mm. The long flow-blocking platform 33 increases the resistance to metal flow to a greater extent, ensuring the forming effect of the cantilever end.

[0041] To obtain ceiling profiles with larger cross-sectional dimensions, in one embodiment of this invention, the distance L4 between the cantilever forming part and the edge of the welding chamber 31 is 10-25 mm. Since the flow-blocking platform 33 extends more than 5 mm beyond the cantilever forming part, a good forming effect can still be achieved even with a small distance between the cantilever forming part and the edge of the welding chamber 31. Furthermore, the smaller distance between the cantilever forming part and the edge of the welding chamber 31 improves mold utilization and reduces mold costs.

[0042] In one embodiment of this utility model, the mold hole 32 includes a first cantilever forming part 34, a second cantilever forming part 35, and a connecting cavity forming part 36. The first cantilever forming part 34 is located at the top of the connecting cavity forming part 36, and the second cantilever forming part 35 is located at the side of the connecting cavity forming part 36. The length of the first cantilever forming part 34 is greater than the length of the second cantilever forming part 35. The distance between the top edge of the welding chamber 31 and the bottom edge of the upper mold 2 is L1, and the distance between the bottom edge of the welding chamber 31 and the bottom edge of the upper mold 2 is L2, where L1 > L2.

[0043] In this technical solution, the ceiling profile 1 is irregularly shaped. By setting the entire welding chamber 31 eccentrically in the lower mold 3, while the top of the diversion hole 21 in the upper mold 2 remains centered in the upper mold 2, the first cantilever forming part 34 has greater forming pressure, ensuring that the entire ceiling profile 1 is extruded at a uniform speed through the die hole 32. Understandably, the specific lengths of L1 and L2 are designed based on the lengths of the first cantilever forming part 34 and the second cantilever forming part 35.

[0044] Furthermore, a mold core 22 is provided on the bottom surface of the upper mold 2, and the working strip 222 of the mold core 22 is located within the forming part 36 of the connecting cavity; a boss 221 surrounds the top of the working strip 222 of the mold core 22, and the distance of the boss 221 beyond the working strip 222 of the mold core 22 corresponds to the wall thickness of the ceiling profile 1. The setting of the boss 221 increases the metal flow resistance of the forming part 36 of the connecting cavity and improves the forming quality of the connecting cavity. It should be noted that there is a gap between the boss 221 and the bottom paper of the welding chamber 31 to allow metal extrusion.

[0045] To improve the forming stability of the lower mold 3, the lower mold 3 is further provided with a first-stage air cutter, a second-stage air cutter, and a third-stage air cutter in sequence, which improves the pressure-bearing capacity of the mold hole 32, thereby improving the forming accuracy and the surface quality of the product.

[0046] Understandably, after use, the mold needs to be opened for molding. However, due to the adhesion of aluminum alloy material to the welding chamber 31 and the diversion hole 21, as well as the large extrusion force applied to the mold by the pressure, after unscrewing the screws connecting the templates, external force is required to separate the templates for molding. In this utility model, the top edge of the lower mold 3 is provided with a concave ring 37, and the welding chamber 31 and the concave ring 37 form a second abutting plane 38. The second abutting plane 38 is provided with multiple mounting holes 39, and a pusher 391 is provided in each mounting hole 39.

[0047] The bottom edge of the upper mold 2 is provided with a convex ring 24, and the concave ring 37 is used to mate with the convex ring 24. The convex ring 24 and the diversion hole 21 form a first abutting plane 23. The first abutting plane 23 is fixed with a plurality of mounting rods 25. The mounting rods 25 are used to be inserted into the mounting hole 39 and engaged with the push post 391. An elastic element 392 is provided between the outer end of the bottom wall of the push post 391 and the inner bottom wall of the mounting hole 39.

[0048] The convex ring 24 and concave ring 37 cooperate to provide axial positioning for the assembly of the flow divider and the forming mold, making their assembly easier. Multiple mounting rods 25 are inserted into mounting holes 39 for radial positioning of the flow divider and the forming mold. By setting push pins 391 within the mounting holes 39, when the screws connecting the mold plates are loosened, the push pins 391 can push the mounting rods 25 to move, causing the flow divider and the forming mold to automatically separate. Alternatively, based on the pushing force of the push pins 391, a slight external impact can separate the flow divider and the forming mold.

[0049] In existing technologies, multiple templates of aluminum alloy forming dies are connected by screws, or multiple templates are assembled and placed on an extrusion seat, with the extrusion seat ensuring that the assembled templates do not shift. For aluminum alloy forming dies connected by screws, the screws need to be installed and removed during assembly and molding, which is cumbersome. If the screws are not removed, the molding effect is poor, and it is difficult to completely remove the aluminum alloy material adhering to the die. Molds assembled by screws are prone to falling apart during transport, which is not conducive to molding and storage. This utility model provides a technical solution to the above problems: the mating surface of the convex ring 24 is parallel to the axis of the die, and the mating surface of the concave ring 37 is an inclined surface 331, which slopes from the top to the bottom of the forming die towards the centerline axis of the die. After the diversion die and the forming die are pressure-assembled, the concave ring 37 and the convex ring 24 are interference-fitted, achieving relative fixation of the two templates. The operation is simple and the assembly is reliable. Separation of the two templates can be achieved with only a relatively large external force impact, making the separation operation simple. The second abutment surface 38 is provided with a slot 30, and the first abutment surface 23 is provided with a pin 26. The slot 30 and the pin 26 engage to limit the movement of the upper mold 2 and the lower mold 3. After the slot 30 and the pin 26 are engaged, there is a movable gap between the upper mold 2 and the lower mold 3. When the flow divider plate and the forming plate are separated, the slot 30 and the pin 26 are still engaged, and there is a movable gap between the flow divider mold and the forming mold. The mold in this state can be directly subjected to molding. The template assembly operation after molding is completed is simple and quick.

[0050] Other components and operations of a molding die for ceiling profiles according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0051] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A molding die for a ceiling profile, the ceiling profile comprising multiple cantilever arms, the sides of the cantilever arms being provided with multiple connecting portions, the ceiling profile having a wall thickness of 0.8–1.2 mm, characterized in that, The molding die includes an upper die and a lower die. The upper die has multiple flow-dividing holes, and the area of ​​the top cross-section of the flow-dividing holes is smaller than the area of ​​the bottom cross-section. The lower mold is provided with a welding chamber with a depth of 13-20mm. The welding chamber is provided with a mold hole. Multiple cantilever forming parts of the mold hole are provided with flow-blocking platforms. The cross-section of the flow-blocking platform is fan-shaped, and the bottom end of the vertical side of the flow-blocking platform is located at the edge of the cantilever forming part.

2. The molding die for ceiling profiles according to claim 1, characterized in that, The flow-blocking platform has an inclined surface at one end near the center of the welding chamber, and the inclined surface is tilted in a direction away from the cantilever forming part.

3. The molding die for ceiling profiles according to claim 2, characterized in that, The other end of the flow-blocking platform extends beyond the end of the cantilever forming part, and the distance between the other end of the flow-blocking platform and the end of the cantilever forming part is greater than 5mm.

4. The molding die for ceiling profiles according to claim 3, characterized in that, The distance between the cantilever forming part and the edge of the welding chamber is 10-25 mm.

5. The molding die for ceiling profiles according to any one of claims 1 to 4, characterized in that, The die hole includes a first cantilever forming part, a second cantilever forming part, and a connecting cavity forming part. The first cantilever forming part is located at the top of the connecting cavity forming part, and the second cantilever forming part is located on the side of the connecting cavity forming part. The length of the first cantilever forming part is greater than the length of the second cantilever forming part. The distance between the top edge of the welding chamber and the bottom edge of the upper mold is L1, and the distance between the bottom edge of the welding chamber and the bottom edge of the upper mold is L2, where L1 > L2.

6. The molding die for ceiling profiles according to claim 5, characterized in that, The bottom surface of the upper mold is provided with a mold core, and the working belt of the mold core is located inside the forming part of the connecting cavity; The top of the working strip of the mold core is surrounded by a boss, and the distance by which the boss extends beyond the working strip of the mold core corresponds to the wall thickness of the ceiling profile.

7. The molding die for ceiling profiles according to claim 5, characterized in that, The lower die is sequentially equipped with a first-stage air cutter, a second-stage air cutter, and a third-stage air cutter.

8. The molding die for ceiling profiles according to claim 5, characterized in that, The top edge of the lower mold is provided with a concave ring, and the welding chamber and the concave ring are a second abutting plane. The second abutting plane is provided with a plurality of mounting holes, and a pusher is provided in the mounting holes. The bottom edge of the upper mold is provided with a convex ring, and the concave ring is used to mate with the convex ring. The convex ring and the diversion hole form a first abutting plane. Multiple mounting rods are fixed on the first abutting plane. The mounting rods are used to be inserted into the mounting hole and engaged with the push post. An elastic element is provided between the outer end of the bottom wall of the push post and the inner bottom wall of the mounting hole.

9. The molding die for ceiling profiles according to claim 8, characterized in that, The mating surface of the convex ring is parallel to the axis of the mold, and the mating surface of the concave ring is an inclined surface, which is inclined along the top to the bottom of the forming mold toward the centerline axis of the mold. The second abutting surface is provided with a slot, and the first abutting surface is provided with a pin. The slot and the pin engage to limit the upper mold and the lower mold. After the slot and the pin engage, there is a movable gap between the upper mold and the lower mold.

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