Pressure forming device for foamed polypropylene plate

Abstract

The utility model provides a pressure forming device for a foamed polypropylene plate, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The pressure forming device for the foamed polypropylene plate comprises a rack and further comprises a first pressing plate, a second pressing plate, a first air cylinder and a buckling assembly, the first air cylinder is fixedly connected to the bottom of the rack, a piston rod of the first air cylinder is fixedly connected with the first pressing plate, the inner end of the second pressing plate is hinged to the upper portion of the rack, and the buckling assembly is located between the upper portion of the rack and the outer end of the second pressing plate. The buckling assembly can enable the outer end of the second pressing plate to be connected with the upper portion of the rack in a buckling mode, after the second pressing plate is connected with the rack in a buckling mode, the first pressing plate is located under the second pressing plate, the first pressing plate and the second pressing plate are arranged in parallel, and after the first air cylinder drives the first pressing plate to move upwards, the first pressing plate and the second pressing plate can be drawn close. The pressure forming device for the foamed polypropylene plate is high in stability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical technical field relates to a foamed polypropylene plate pressure forming device. BACKGROUND

[0002] Foamed polypropylene plate is widely used in many fields due to its good physical properties and processing properties.

[0003] Foamed polypropylene plate has the following characteristics:

[0004] 1. Lightweight and high strength: foamed polypropylene plate has high strength-to-weight ratio, is lightweight, and is easy to transport and install.

[0005] 2. Corrosion resistance: foamed polypropylene plate is resistant to most chemicals, water, and acid and alkaline solutions, and is suitable for use in chemical industry and outdoor environments.

[0006] 3. Shock absorption: the foamed structure absorbs impact, providing excellent protection for packaging and cushioning materials.

[0007] 4. Thermal insulation: the hollow structure reduces heat conduction, and is used in building, cold storage, and thermal insulation.

[0008] 5. Environmental protection: foamed polypropylene is recyclable, meets environmental protection trends, is non-toxic, and is used in food packaging.

[0009] 6. Processability: foamed polypropylene is easy to process, can be hot formed, cut, welded, and bonded, and meets diverse design requirements.

[0010] Existing foamed polypropylene plates are usually formed by mold extrusion. The existing mold usually includes a mold body with an empty cavity and an open upper part, and a pressing plate that can be inserted into the mold body. After the pressing plate extrudes the raw material in the mold body, the foamed polypropylene plate is formed stably.

[0011] However, the foamed polypropylene plate is easily bonded in the mold body after forming, making it difficult to demold, and its stability is poor. SUMMARY

[0012] The utility model aims at the above problems existing in the prior art, and provides a foamed polypropylene plate pressure forming device with high work efficiency and compact structure.

[0013] The utility model can achieve the above-mentioned purposes through the following technical solutions:

[0014] The utility model provides a kind of foamed polypropylene plate pressure forming device, including frame, it is characterized by further including pressing plate one, pressing plate two, cylinder one and buckling assembly, the piston rod of cylinder one is fixedly connected with pressing plate one at the bottom of frame, the outer end of pressing plate two is hinged at the upper portion of frame, the buckling assembly is located between the upper portion of frame and the outer end of pressing plate two, the buckling assembly can be buckled and connected with the outer end of pressing plate two and the upper portion of frame, when pressing plate two is buckled and connected with frame, pressing plate one is located just below pressing plate two and is arranged in parallel, cylinder one drives pressing plate one to move up and can make pressing plate one and pressing plate two close.

[0015] The foamed polypropylene plate pressure forming device of the utility model is creatively provided with pressing plate one and pressing plate two on frame, and the buckling assembly is in disengaged state in initial state, at this time, raw materials can be stably placed on the upper portion of pressing plate one.

[0016] After a certain amount of raw materials are placed on pressing plate one, pressing plate two is swung around its hinged portion and stably connected on the upper portion of frame by buckling assembly.

[0017] After cylinder one drives pressing plate one to move up, pressing plate one can be attached to pressing plate two, at this time, raw materials are extruded by pressing plate one and pressing plate two and stably extruded into foamed polypropylene plate with certain shape and size.

[0018] After foamed polypropylene plate is formed, the buckling assembly is loosened, pressing plate two is separated from pressing plate one, and cylinder one drives pressing plate one to continue moving up, so that foamed polypropylene plate on pressing plate one can be conveniently taken out.

[0019] After the above operation is completed, cylinder one drives pressing plate one to move to the initial position again.

[0020] In the foamed polypropylene plate pressure forming device described above, the number of cylinder one is two, and two cylinder ones are arranged at both ends of the bottom of frame.

[0021] Since the size of pressing plate one is relatively large, two cylinder ones can stably push and extrude pressing plate one to move.

[0022] In the foamed polypropylene plate pressure forming device described above, the pressing plate one and the frame also have a synchronous lifting structure.

[0023] Under the action of the synchronous lifting structure, pressing plate one can move up and down stably.

[0024] In the pressure forming device for foamed polypropylene plate material, the synchronous lifting structure comprises a guide cylinder, a guide rod and a transmission assembly, the guide cylinder is in a cylindrical shape and is fixed at the lower end to the frame, the guide rod is fixed at the upper end to the bottom of the pressing plate, the lower end of the guide rod is arranged in the guide cylinder, the guide cylinder and the guide rod form a lifting unit, the number of the lifting units is four, two of the lifting units are connected at one end of the frame and arranged adjacently, the other two of the lifting units are connected at the other end of the frame and arranged adjacently, one end of the transmission assembly is connected to the two lifting units, the other end of the transmission assembly is connected to the other two lifting units.

[0025] The cooperation of the guide cylinder and the guide rod can ensure the stable up-and-down movement of the pressing plate.

[0026] Meanwhile, the four lifting units can also move synchronously under the action of the transmission assembly, further improving the movement stability of the pressing plate.

[0027] In the pressure forming device for foamed polypropylene plate material, the transmission assembly comprises a synchronous rod one and a synchronous rod two, the synchronous rod one has a transmission wheel one, a transmission wheel two and a transmission wheel three in sequence along the length direction, the synchronous rod two has a transmission wheel four, a transmission wheel five and a transmission wheel six along the length direction, the synchronous rod one is axially fixed to the frame and can rotate circumferentially, the synchronous rod two is axially fixed to the frame and can rotate circumferentially, the transmission wheel two and the transmission wheel three are connected to the guide rods in the corresponding lifting units respectively, the transmission wheel five and the transmission wheel six are connected to the guide rods in the corresponding lifting units respectively, and the transmission wheel one is connected to the transmission wheel four.

[0028] The synchronous rod one is connected to the two lifting units in one-to-one correspondence through the transmission wheel two and the transmission wheel three thereon, and the synchronous rod two is connected to the other two lifting units in one-to-one correspondence through the transmission wheel five and the transmission wheel six thereon.

[0029] The transmission wheel one and the transmission wheel four are connected together, so that the synchronous rod one and the synchronous rod two can rotate synchronously, the guide rods can stably translate, and the lifting stability of the pressing plate is ultimately improved.

[0030] In the pressure forming device for foamed polypropylene plate material, the side of the guide rod has a rack, and the transmission wheel two, the transmission wheel three, the transmission wheel five and the transmission wheel six are all engaged with the rack on the corresponding side of the guide rod.

[0031] The transmission wheel two, the transmission wheel three, the transmission wheel five and the transmission wheel six are all gears, and the transmission wheel two, the transmission wheel three, the transmission wheel five and the transmission wheel six are engaged with the rack on the corresponding guide rod, so as to ultimately ensure the stable synchronous lifting of the guide rod.

[0032] In the pressure forming device for foamed polypropylene plate, the transmission wheel one and the transmission wheel four are bevel gears, and the transmission wheel one is engaged with the transmission wheel four.

[0033] The rack is also axially fixed with a synchronizing rod three which can rotate in a circle, and the two ends of the synchronizing rod three are respectively provided with a synchronizing wheel one and a synchronizing wheel two, the synchronizing wheel one is engaged with the transmission wheel one, and the synchronizing wheel two is engaged with the transmission wheel four.

[0034] In the pressure forming device for foamed polypropylene plate, the buckle assembly comprises a buckle claw, a cylinder two and a buckle edge at the outer end of the pressing plate two, the middle part of the buckle claw is hinged on the rack, the cylinder body of the cylinder two is hinged on the rack, the piston rod of the cylinder two is hinged on the buckle claw, and the buckle claw can be buckled and connected at the buckle edge after the cylinder two drives the buckle claw to swing.

[0035] After the cylinder two drives the buckle claw to swing around the hinge, the buckle claw can be stably buckled at the buckle edge, and finally the pressing plate two is stably connected on the upper part of the rack.

[0036] In the pressure forming device for foamed polypropylene plate, it further comprises a cylinder three, the cylinder body of the cylinder three is hinged on the rack, and the piston rod of the cylinder three is hinged on the middle part of the pressing plate two.

[0037] The pressing plate two can be stably swung around the hinge by the cylinder three.

[0038] Compared with the prior art, the pressure forming device for foamed polypropylene plate can open and close the pressing plate two, and the pressing plate one can stably move to the pressing plate two, so that the operation efficiency is high during the whole forming process, and the forming stability is high.

[0039] At the same time, the pressing plate one and the pressing plate two are respectively connected on the upper part and the lower part of the rack, so that the structure is also relatively compact, and has high practical value. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is a three-dimensional structure schematic diagram when the pressure forming device for foamed polypropylene plate is opened.

[0041] Figure 2 is a three-dimensional structure schematic diagram when the pressure forming device for foamed polypropylene plate is closed.

[0042] Figure 3 is a structure schematic diagram of the synchronous lifting structure in the pressure forming device for foamed polypropylene plate.

[0043] In the diagram, 1. Frame; 2. Pressure plate one; 3. Pressure plate two; 3a. Fastening edge; 4. Cylinder one; 5. Guide cylinder; 6. Guide rod; 7. Synchronizing rod one; 7a. Transmission wheel one; 7b. Transmission wheel two; 7c. Transmission wheel three; 8. Synchronizing rod two; 8a. Transmission wheel four; 8b. Transmission wheel five; 8c. Transmission wheel six; 9. Synchronizing rod three; 9a. Synchronizing wheel one; 9b. Synchronizing wheel two; 10. Clamping claw; 11. Cylinder two; 12. Cylinder three. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0047] like Figure 1 As shown, the pressure molding device for foamed polypropylene sheets includes a frame 1, a pressure plate 2, a pressure plate 3, a cylinder 4, and a fastening assembly. The cylinder 4 is fixedly connected to the bottom of the frame 1, and the piston rod of the cylinder 4 is fixedly connected to the pressure plate 2. The inner end of the pressure plate 3 is hinged to the upper part of the frame 1. The fastening assembly is located between the upper part of the frame 1 and the outer end of the pressure plate 3. The fastening assembly can fasten the outer end of the pressure plate 3 to the upper part of the frame 1. When the pressure plate 3 is fastened to the frame 1, the pressure plate 2 is located directly below the pressure plate 3 and the two are parallel. After the cylinder 4 moves the pressure plate 2 upward, the pressure plate 2 and the pressure plate 3 can be brought closer together.

[0048] There are two cylinders 4, which are respectively located at both ends of the bottom of the frame 1.

[0049] The pressing plate one 2 and the frame 1 also have a synchronous lifting structure.

[0050] As shown in Figure 1 and Figure 2 and Figure 3 The synchronous lifting structure includes a guide cylinder 5, a guide rod 6 and a transmission assembly, the guide cylinder 5 is cylindrical and the lower end of the guide cylinder 5 is fixed on the frame 1, the upper end of the guide rod 6 is fixed on the bottom of the pressing plate one 2, the lower end of the guide rod 6 is arranged in the guide cylinder 5, the guide cylinder 5 and the guide rod 6 form a lifting unit, the number of the lifting units is four, two of the lifting units are connected at one end of the frame 1 and arranged adjacently, the other two of the lifting units are connected at the other end of the frame 1 and arranged adjacently, one end of the transmission assembly is connected at the two lifting units, the other end of the transmission assembly is connected at the other two lifting units.

[0051] The transmission assembly includes a synchronous rod one 7 and a synchronous rod two 8, the synchronous rod one 7 has a transmission wheel one 7a, a transmission wheel two 7b and a transmission wheel three 7c in sequence along the length direction of the synchronous rod one 7, the synchronous rod two 8 has a transmission wheel four 8a, a transmission wheel five 8b and a transmission wheel six 8c along the length direction of the synchronous rod two 8, the synchronous rod one 7 is axially fixed on the frame 1 and can rotate circumferentially, the synchronous rod two 8 is axially fixed on the frame 1 and can rotate circumferentially, the transmission wheel two 7b and the transmission wheel three 7c are respectively connected with the guide rod 6 in the corresponding lifting unit, the transmission wheel five 8b and the transmission wheel six 8c are respectively connected with the guide rod 6 in the corresponding lifting unit, the transmission wheel one 7a is connected with the transmission wheel four 8a.

[0052] The side of the guide rod 6 has a rack, the transmission wheel two 7b, the transmission wheel three 7c, the transmission wheel five 8b and the transmission wheel six 8c are all engaged with the rack of the corresponding guide rod 6.

[0053] The transmission wheel one 7a and the transmission wheel four 8a are both bevel gears, the transmission wheel one 7a is engaged with the transmission wheel four 8a.

[0054] In the embodiment, the frame 1 is also axially fixed with a synchronous rod three 9 which can rotate circumferentially, the synchronous rod three 9 has a synchronous wheel one 9a and a synchronous wheel two 9b at two ends respectively, the synchronous wheel one 9a is engaged with the transmission wheel one 7a, the synchronous wheel two 9b is engaged with the transmission wheel four 8a.

[0055] The buckling assembly includes a buckling claw 10, a cylinder two 11 and a buckling edge 3a at the outer end of the pressing plate two 3, the middle of the buckling claw 10 is hinged on the frame 1, the cylinder body of the cylinder two 11 is hinged on the frame 1, the piston rod of the cylinder two 11 is hinged on the buckling claw 10, the cylinder two 11 drives the buckling claw 10 to swing, and the buckling claw 10 can be buckled and connected at the buckling edge 3a after the cylinder two 11 drives the buckling claw 10 to swing.

[0056] Also included is a cylinder three 12, the cylinder body of the cylinder three 12 is hinged on the frame 1, and the piston rod of the cylinder three 12 is hinged in the middle of the pressing plate two 3.

[0057] The pressure forming device of the foamed polypropylene plate is creatively provided with the pressing plate one and the pressing plate two on the frame, and the fastening assembly is in a disengaged state in the initial state, at which time the raw material can be stably placed on the upper part of the pressing plate one.

[0058] After the pressing plate one is placed with the set amount of raw material, the pressing plate two is swung around the hinge thereof and then stably connected to the upper part of the frame through the fastening assembly.

[0059] After the pressing plate one is driven upward by the cylinder one, the pressing plate one can be attached to the pressing plate two, at which time the raw material is stably extruded into the foamed polypropylene plate with the set shape and size after being extruded by the pressing plate one and the pressing plate two.

[0060] After the foamed polypropylene plate is formed, the fastening assembly is loosened, the pressing plate two is disengaged from the pressing plate one, and the pressing plate one is continuously driven upward by the cylinder one, so that the foamed polypropylene plate at the pressing plate one can be conveniently taken out.

[0061] The technical features of the above-described embodiments can be combined arbitrarily, and for the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not contradict each other, they should be considered as the scope of the present disclosure.

[0062] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not used as a limitation of the present application, and as long as the above embodiments are appropriately changed and varied within the scope of the spirit of the present application, they fall within the scope of the present application.

Claims

1. A pressure forming apparatus for foamed polypropylene sheet material comprising a frame, characterised in that, It also includes a pressure plate one, a pressure plate two, a cylinder one, and a fastening assembly. The cylinder one is fixedly connected to the bottom of the frame, and the piston rod of the cylinder one is fixedly connected to the pressure plate one. The inner end of the pressure plate two is hinged to the upper part of the frame. The fastening assembly is located between the upper part of the frame and the outer end of the pressure plate two. The fastening assembly can fasten the outer end of the pressure plate two to the upper part of the frame. When the pressure plate two is fastened to the frame, the pressure plate one is located directly below the pressure plate two and the two are arranged in parallel. After the cylinder one moves the pressure plate one upward, it can bring the pressure plate one and the pressure plate two closer together.

2. The pressure molding apparatus for foamed polypropylene sheets according to claim 1, wherein There are two cylinders, which are respectively located at both ends of the bottom of the frame.

3. The pressure molding apparatus for foamed polypropylene sheets according to claim 2, wherein The pressure plate and the frame also have a synchronous lifting structure.

4. The pressure molding apparatus for foamed polypropylene sheets according to claim 3, characterized in that, The synchronous lifting structure includes a guide cylinder, a guide rod, and a transmission assembly. The guide cylinder is cylindrical and its lower end is fixed to the frame. The upper end of the guide rod is fixed to the bottom of a pressure plate, and its lower end passes through the guide cylinder. The guide cylinder and the guide rod form a lifting unit. There are four lifting units, two of which are connected to one end of the frame and are arranged adjacent to each other, and the other two are connected to the other end of the frame and are arranged adjacent to each other. One end of the transmission assembly is connected to two lifting units, and the other end of the transmission assembly is connected to the other two lifting units.

5. The pressure molding apparatus for foamed polypropylene sheets according to claim 4, characterized in that, The transmission assembly includes a first synchronous rod and a second synchronous rod. The first synchronous rod has a first transmission wheel, a second transmission wheel, and a third transmission wheel along its length. The second synchronous rod has a fourth transmission wheel, a fifth transmission wheel, and a sixth transmission wheel along its length. The first synchronous rod is axially fixed to the frame and can rotate circumferentially. The second synchronous rod is axially fixed to the frame and can rotate circumferentially. The second and third transmission wheels are respectively connected to the guide rods in the corresponding lifting units. The fifth and sixth transmission wheels are respectively connected to the guide rods in the corresponding lifting units. The first transmission wheel is connected to the fourth transmission wheel.

6. The pressure molding apparatus for foamed polypropylene sheets according to claim 5, characterized in that, The guide rod has a rack on its side, and the aforementioned transmission wheels 2, 3, 5 and 6 all mesh with the racks on the corresponding guide rod sides.

7. The pressure molding apparatus for foamed polypropylene sheets according to claim 6, characterized in that, Both transmission wheel one and transmission wheel four are bevel gears, and transmission wheel one meshes with transmission wheel four.

8. The pressure molding apparatus for foamed polypropylene sheets according to claim 7, characterized in that, The fastening assembly includes a latch, a second cylinder, and a fastening edge at the outer end of a second pressure plate. The latch is hinged to the frame in the middle, the cylinder body of the second cylinder is hinged to the frame, and the piston rod of the second cylinder is hinged to the latch. After the second cylinder drives the latch to swing, the latch can be fastened and connected at the fastening edge.

9. The pressure molding apparatus for foamed polypropylene sheets according to claim 8, characterized in that, It also includes cylinder three, the cylinder body of which is hinged to the frame, and the piston rod of cylinder three is hinged to the middle of pressure plate two.

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