Foam hot press molding equipment

Abstract

The utility model provides a kind of foam hot press forming equipment, including six prism roller for conveying foam and being switched by rotating and being used to work station on workbench, including a plurality of around six prism roller axis center evenly arranged on the first surface of six prism roller outer periphery and prismatic body that is alternately arranged with first surface and provides rigid constraint for foam;Lower mould is equipped on the first surface;A group of hot-pressing components are sequentially annularly arranged on the outer periphery of six prism roller along the direction of foam conveying and are towards lower mould to compress foam, upper mould is equipped on the hot-pressing component and is adapted with lower mould.In the present application, the stress on foam is relatively separated by rigid contact between prismatic body on six prism roller and foam, so that the pressure is accurate and uniform when upper mould is compressed, so that deformation is limited within a single station.

Description

Technical Field

[0001] This utility model relates to the technical field of foam preparation, and in particular to a foam hot pressing molding equipment. Background Technology

[0002] Foam, a material with elasticity, heat insulation, and cushioning properties, is widely used in electronics, packaging, furniture, and other fields. Its molding quality directly affects the performance of downstream products. In foam processing, hot pressing is one of the core processes, requiring a conveyor system to drive the raw material through multiple stations to complete preheating, pressurization, and molding operations.

[0003] In the aforementioned traditional hot pressing equipment, the raw material is conveyed horizontally, and the tension is mainly controlled by the "synchronization of front and rear conveying speeds". Due to uneven pressure of the conveying device, local stretching and tension deviation are likely to occur. This is especially true for strip-shaped raw materials that are highly sensitive to tension, where there is serious mutual interference between two adjacent workstations (especially thin materials are more prone to wrinkles). When multiple workstations press simultaneously, there is a "linkage effect" between each pair of workstations, and the deformation of the foam spreads to adjacent workstations.

[0004] Therefore, this application provides a foam hot pressing molding equipment that effectively controls the movement and deformation diffusion of foam between adjacent workstations. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a foam hot pressing molding equipment, which can effectively control the movement and deformation diffusion of foam between adjacent workstations, so that the tension on adjacent hot pressing workstations can be kept relatively consistent.

[0006] To achieve the above and other related objectives, this utility model provides the following technical solution: A foam hot pressing molding equipment includes a hexagonal roller on a workbench for conveying foam and switching work positions by rotation, and a plurality of first surfaces evenly arranged around the axis of the hexagonal roller on the outer circumference of the hexagonal roller and prisms alternately arranged with the first surfaces to provide rigid constraints on the foam; a lower mold is provided on the first surface. A set of hot pressing components are arranged sequentially around the outer periphery of the hexagonal roller along the foam conveying direction and press the foam towards the lower mold. The hot pressing components are provided with an upper mold that is adapted to the lower mold.

[0007] To achieve the above technical solution, the hexagonal roller is provided with six alternating first surfaces and six prisms. The first surfaces can increase the contact area between the foam and the foam, thereby increasing the friction between the two. The prisms provide rigid constraints on the foam, which can divide the tension on the foam on the two adjacent first surfaces and prevent the foam from moving back and forth, so that the tension on the foam at adjacent workstations remains relatively consistent.

[0008] Furthermore, the hot pressing assembly includes a movable plate disposed opposite to the first surface and a first driving unit with its output end connected to the movable plate.

[0009] To achieve the above technical solution, the first driving unit drives the moving plate and moves the upper mold toward and away from the first surface to compress the foam.

[0010] Furthermore, the hot pressing assembly includes a limiting plate positioned toward the hexagonal roller and elastically connected to the moving plate for positioning the foam.

[0011] To achieve the above technical solution, the setting of the limiting plate prevents the foam from moving around in adjacent workstations when the upper mold is pressed towards the lower mold.

[0012] Furthermore, along the conveying direction of the foam, the hot pressing assembly and its corresponding first surface are sequentially configured as a preheating station and a forming station.

[0013] To achieve the above technical solution, the foam material can be softened in advance by the division of labor and cooperation between the preheating station and the hot pressing components in the molding station, thereby reducing the resistance during molding. At the same time, the preheated foam has a basic temperature and does not need to be reheated after entering the molding station, so it can directly focus on shaping, thus greatly increasing the production efficiency of a single piece.

[0014] Furthermore, it also includes a cooling assembly located downstream of the molding station, which includes a cylinder tilted on the worktable and an airflow nozzle located at the cylinder output end and facing the hexagonal roller.

[0015] The above technical solution enables the molded foam to cool and solidify rapidly.

[0016] Furthermore, it also includes a cutting assembly located downstream of the cooling assembly, which includes a cutting blade positioned toward the hexagonal roller and reciprocating in a vertical direction.

[0017] To achieve the above technical solution, the connection strength between the molded foam and the raw material roll is weakened by setting the cutting component, which makes it easier for the molded foam to separate from the raw material roll and be unloaded later.

[0018] Furthermore, it also includes a feeding assembly located downstream of the cutting assembly and arranged vertically to push the cut foam downwards.

[0019] To achieve the above technical solution, the cutting of the molded foam is achieved by setting up the feeding component, which allows the cut foam to detach from the raw material roll.

[0020] As described above, the foam hot pressing molding equipment of this utility model has the following beneficial effects: 1. In this application, the stress on the foam is relatively separated by the rigid contact between the upper prism of the hexagonal roller and the foam, so that the pressure is precise and uniform when the upper mold is pressed, and the deformation is limited to a single station.

[0021] 2. In this application, the division of labor and cooperation between the hot pressing components on the preheating station and the molding station allows the preheating station to soften the foam material in advance and reduce the resistance during molding. At the same time, the preheated foam has a basic temperature and does not need to be reheated after entering the molding station, so it can directly focus on shaping, thus greatly increasing the production efficiency of a single piece. Attached Figure Description

[0022] Figure 1 The diagram shown is a structural schematic of a foam hot pressing molding device according to this utility model.

[0023] Figure 2 The diagram shown is a structural schematic of the hexagonal roller in this utility model.

[0024] Figure 3 The diagram shown is a structural schematic of the hot-pressing assembly in this utility model.

[0025] Figure 4 The diagram shown is a structural schematic of the cutting component in this utility model.

[0026] The components include: 1. Hexagonal roller; 11. First surface; 111. Lower mold; 112. Clearance groove; 12. Prism; 13. Rotating shaft; 2. Hot pressing assembly; 21. Upper mold; 22. Moving plate; 23. First drive unit; 24. Limiting plate; 241. Clearance hole; 25. Support frame; 3. Cooling assembly; 31. Cylinder; 32. Nozzle; 4. Cutting assembly; 41. Cutting knife; 42. Cutting drive motor; 43. Mounting plate; 5. Unloading assembly; 51. Telescopic rod; 52. Punch; 6. Receiving roller. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0028] Please see Figure 1-4It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0029] Please see Figures 1 to 4 This utility model provides a foam thermoforming equipment, including a hexagonal roller 1 set on a workbench for conveying foam and a set of hot pressing components 2 arranged around the outer periphery of the hexagonal roller 1.

[0030] The hexagonal roller 1 includes a rotating shaft 13 that runs through it along its own axis, a number of first surfaces 11 that are evenly arranged around its own axis on the outer circumference of the hexagonal roller 1, and prisms 12 that are alternately arranged with the first surfaces 11.

[0031] Specifically, the first surface 11 is in surface contact with the foam, and a lower mold 111 is provided on it. The prisms 12 are alternately arranged with the first surface 11 and are in line contact with the foam. Two adjacent prisms 12 provide rigid constraints for the foam. The hexagonal roller 1 achieves the switching between workstations by rotating around the rotation axis 13.

[0032] Furthermore, the hot pressing assembly 2 is arranged sequentially on the outer periphery of the hexagonal roller 1 along the conveying direction of the foam and presses the foam towards the lower mold 111. An upper mold 21 adapted to the lower mold 111 is provided on it, and the two are arranged to form a cavity adapted to the shape of the foam to be formed. The lower mold 111 presses the foam into the lower mold 111 towards the first surface 11 to preheat or shape it.

[0033] It should be noted that the hot pressing assembly 2 also includes a heating tube embedded in the movable plate 22, so that heat can directly reach the processing area and reduce heat loss.

[0034] In this application, the hexagonal roller 1 is provided with six alternating first surfaces 11 and six prisms 12. The first surfaces 11 can increase the contact area with the foam and increase the friction between the two. The prisms 12 provide rigid constraints for the foam, which can divide the tension on the foam on the two adjacent first surfaces 11 and prevent the foam from moving back and forth, so that the tension on the foam at adjacent workstations remains relatively consistent.

[0035] Please continue reading. Figure 3 The hot pressing assembly 2 includes a support frame 25 disposed above the hexagonal roller 1, a movable plate 22 with its first surface 11 opposite to it, and a first drive unit 23 with its output end connected to the movable plate 22.

[0036] Specifically, the upper mold 21 is located on the side of the moving plate 22 facing the lower mold 111. The first drive unit 23 is a hydraulic cylinder, whose cylinder body is mounted on the support frame 25 through a fixing block, and drives the moving plate 22 to reciprocate towards the first surface 11, so that the upper mold 21 and the lower mold 111 move closer or further apart.

[0037] Furthermore, the hot pressing assembly 2 also includes a limiting plate 24 mounted on the movable plate 22 and disposed facing the first surface 11. The limiting plate 24 and the movable plate 22 are elastically connected by an elastic element, and the limiting plate 24 is provided with a through-hole 241. The size of the through-hole 241 is larger than the size of the upper mold 21, so as to avoid the upper mold 21 when the movable plate 22 moves toward the first surface 11.

[0038] When the hot pressing assembly 2 is working, the limiting plate 24 first contacts the foam to position it and prevent the foam from moving. Then the upper mold 21 passes through the clearance hole 241 and cooperates with the lower mold 111 to press the foam.

[0039] It should be noted that, along the direction of foam conveying, the hot pressing assembly 2 and its corresponding first surface 11 are sequentially configured as a preheating station and a forming station; the heating temperature of the upper mold 21 on the preheating station is lower than that on the forming station, and is used to preheat the foam to a softened state; the heating temperature of the upper mold 21 on the forming station matches the foam forming requirements, so as to realize the foam shaping process.

[0040] The division of labor and cooperation between the hot pressing components in the preheating station and the molding station allows the preheating station to soften the foam material in advance, reducing resistance during molding. At the same time, the preheated foam has a basic temperature, so it does not need to be reheated after entering the molding station and can directly focus on shaping, thus greatly increasing the production efficiency of a single piece.

[0041] Please continue reading. Figure 1 It also includes a cooling assembly 3 located downstream of the molding station, which includes a cylinder 31 tilted on the worktable and an airflow nozzle 32 located at the output end of the cylinder 31 and facing the hexagonal roller 1, for rapidly cooling and shaping the molded foam.

[0042] The cylinder 31 is inclined on the worktable via a hinge seat, with its inclination direction facing the first surface 11 on the hexagonal roller 1. The airflow nozzle 32 is fixed to the output end of the cylinder 31, and the outlet of the nozzle 32 is flat and parallel to the first surface 11. The cylinder 31 can drive the airflow nozzle 32 to approach or move away from the hexagonal roller 1 to adjust the cooling distance according to different foams.

[0043] In addition, the airflow nozzle 32 has an airflow channel inside that is connected to an external air cooler.

[0044] Please continue reading. Figure 1 and Figure 4 It also includes a cutting component 4 located downstream of the cooling component 3 for cutting the molded foam.

[0045] Specifically, the cutting assembly 4 includes a cutting blade 41 facing the hexagonal roller 1, a mounting plate 43 for mounting the cutting blade 41, and a cutting drive motor 42 that drives the mounting plate 43 to reciprocate in the vertical direction. The cutting drive motor 42 is a servo motor, which drives the mounting plate 43 to reciprocate in the vertical direction, so that the cutting blade 41 can cut the formed foam.

[0046] The cutting area of ​​the cutting blade 41 is roughly similar to the outer contour of the molded foam, and the blade of the cutting blade 41 is intermittently set to preserve the connection point between the molded foam and the raw material. In this embodiment, an edge-retaining cutting process is adopted, and the molded foam is not loaded or unloaded at the cutting station to avoid material accumulation.

[0047] It should be noted that the first surface 11 is provided with a relief groove 112 corresponding to the cutting blade 41, so that the cutting blade 41 will not interfere with or collide with the hexagonal roller 1 when cutting the molded foam.

[0048] like Figure 1 As shown, it also includes a feeding component 5 located downstream of the cutting component 4 to push the formed foam out from the raw material.

[0049] Specifically, it includes a telescopic rod 51 arranged vertically, with a punch 52 connected to the output end of the telescopic rod 51. The punch 52 pushes the formed foam out of the material roll along the direction of the telescopic rod 51.

[0050] In addition, this application also includes a take-up roller 6 for taking up the raw material roll. The take-up roller 6 is located downstream of the feeding assembly 5 and is used to take up the roll of material after it has been extruded from the molded foam, so as to facilitate its recycling.

[0051] The implementation principle of the foam hot pressing molding equipment of this utility model is as follows: Technicians roll the foam raw material from the material roll around the hexagonal roller 1 and then it is wound up by the take-up roller 6; subsequently, the technicians start the equipment, and the heating tube embedded in the moving plate 22 begins to heat. At the same time, the rotary drive unit drives the rotating shaft 13 to rotate, and drives the hexagonal roller 1 to rotate together; the first drive unit 23 in the hot pressing assembly 2 at the preheating station drives the moving plate 22 to move towards the first surface 11, and the limiting plate 24 first contacts the foam, and as the moving plate 22 presses down, it gradually presses the foam onto the first surface 11. Then, the upper mold 21 continues to press down, pressing the fixed foam towards the lower mold 111; subsequently, the hexagonal roller 1 rotates, moving the preheated foam towards the molding station (the processes at the preheating station and the molding station are the same). (Details omitted here). Subsequently, the hexagonal roller 1 rotates again, rotating the formed foam downstream to the cooling station. Cold air flows from the air cooler through the airflow channel and finally blows cold air from the flat airflow nozzle 32 onto the formed foam on the first surface 11. Then, the hexagonal roller 1 rotates again, conveying the cooled foam to the cutting station. The second drive unit moves the mounting plate 43 toward the first surface 11, and the cutting blade 41 rises along with it, cutting the foam and inserting it into the clearance groove 112 on the first surface 11. Then, the second drive unit drives the mounting plate 43 to descend and reset. Finally, the hexagonal roller 1 rotates again, moving the foam to the unloading station. The punch 52 at the front end of the telescopic rod 51 pushes the cut formed foam out of the raw material roll and unloads it. The remaining roll is collected by the take-up roll.

[0052] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A foam hot pressing molding equipment, characterized in that, include: The hexagonal roller (1) is set on the workbench for conveying foam and switching work positions by rotation. It includes a number of first surfaces (11) evenly arranged around the axis of the hexagonal roller (1) on the outer circumference of the hexagonal roller and prisms (12) alternately arranged with the first surfaces (11) and providing rigid constraints for the foam; a lower mold (111) is provided on the first surface (11). A set of hot pressing components (2) are arranged in sequence around the outer periphery of the hexagonal roller (1) along the foam conveying direction and press the foam towards the lower mold (111). The hot pressing components (2) are provided with an upper mold (21) that is compatible with the lower mold (111).

2. The foam hot pressing molding equipment according to claim 1, characterized in that, The hot pressing assembly (2) includes a movable plate (22) disposed opposite to the first surface (11) and a first drive unit (23) whose output end is connected to the movable plate (22).

3. The foam hot pressing molding equipment according to claim 2, characterized in that, The hot pressing assembly (2) includes a limiting plate (24) positioned toward the hexagonal roller (1) and elastically connected to the moving plate (22) for positioning the foam.

4. The foam hot pressing molding equipment according to claim 1, characterized in that, Along the conveying direction of the foam, the hot pressing assembly (2) and the corresponding first surface (11) are sequentially configured as a preheating station and a forming station.

5. The foam hot pressing molding equipment according to claim 4, characterized in that, It also includes a cooling assembly (3) located downstream of the molding station, which includes a cylinder (31) tilted on the worktable and an airflow nozzle (32) located at the output end of the cylinder (31) and facing the hexagonal roller (1).

6. The foam hot pressing molding equipment according to claim 5, characterized in that, It also includes a cutting assembly (4) located downstream of the cooling assembly (3), which includes a cutting blade (41) positioned toward the hexagonal roller (1) and reciprocating in the vertical direction.

7. The foam hot pressing molding equipment according to claim 6, characterized in that, It also includes a feeding assembly (5) located downstream of the cutting assembly (4) and arranged vertically to push the cut foam downward.

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