CN111688087A - Rotational molding device and method for forming solid reinforcing rib in one step - Google Patents
Rotational molding device and method for forming solid reinforcing rib in one step Download PDFInfo
- Publication number
- CN111688087A CN111688087A CN202010582288.3A CN202010582288A CN111688087A CN 111688087 A CN111688087 A CN 111688087A CN 202010582288 A CN202010582288 A CN 202010582288A CN 111688087 A CN111688087 A CN 111688087A
- Authority
- CN
- China
- Prior art keywords
- rotational molding
- motor
- rotational
- rotate
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
- B29C41/042—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/42—Removing articles from moulds, cores or other substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/46—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a rotational molding device and a rotational molding method for forming a solid reinforcing rib in one step, wherein the rotational molding device comprises a rotational molding shell and a rotational molding container body, the rotational molding shell is arranged on a base, a base is arranged on one side of the top surface of the rotational molding shell, and a mechanical claw for grabbing a mold body is arranged on the base; the output end of the first motor is connected with the screw rod, the screw rod penetrates through the sliding seat to be connected and is in threaded connection with the sliding seat, the bottom surface of the sliding seat is in sliding connection with the inner bottom surface of the rotational molding shell, a convex ring is arranged on one side of an opening of the second rotational molding cylinder, an annular plate is arranged on one side of the opening of the first rotational molding cylinder, a sealing gasket is sleeved on the annular plate and is in sliding connection with the convex ring, a reinforcing rib forming groove is formed between the annular plate and the convex ring, a feeding port is arranged on the first rotational molding cylinder, and a sealing plug is arranged at; the invention ensures that the reinforcing ribs on the formed die body are of a solid structure, and greatly improves the rotational molding efficiency of products.
Description
Technical Field
The invention belongs to the technical field of molding rotational molding, and particularly relates to a rotational molding device and a rotational molding method for forming a solid reinforcing rib in one step.
Background
The rigidity and the strength of the ring of the rotational molding container are increased by arranging the reinforcing ribs due to the influence of the pressure of the solution filled in the rotational molding container.
In the prior art, the reinforcing rib of the container is of a solid structure, a secondary filling method is usually adopted, the complexity of the production and processing process is increased, the quality of the filling method is difficult to ensure, high technical requirements are required on the shape and the cleanliness of a welding surface, the filling is not solid, a pore is formed in the middle, the fusion between a filling material and a product is poor, the strength is poor, the filling of a plastic welding gun cannot be performed due to small space of some local structures, the thermal shrinkage of the filling material can generate stress, and meanwhile, the problems of welding quality detection, difficult visual discovery and the like exist; the secondary welding of the external strengthening ribs is adopted, so that the complexity of the production and processing process is increased, high technical requirements are required on the shape and the cleanness of a welding surface, and the risk of welding defects exists; in addition, the production process is complicated and the heating and cooling effects are poor in the rotational molding process, so that the product molding efficiency is reduced.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, the reinforcing rib of a container is of a solid structure, a secondary filling method is usually adopted, the complexity of the production and processing process is increased, the quality of the filling method is difficult to ensure, high technical requirements on the shape and the cleanliness of a welding surface are met, the filling is not solid, a pore is formed in the middle, the filling material and a product are not fused well and have poor strength, the filling material cannot be filled by a plastic welding gun due to small space of some local structures, the filling material is subjected to thermal shrinkage to generate stress, meanwhile, the welding quality detection problem exists, the welding quality detection is difficult to find visually, and the like; the secondary welding of the external strengthening ribs is adopted, so that the complexity of the production and processing process is increased, high technical requirements are required on the shape and the cleanness of a welding surface, and the risk of welding defects exists; in addition, the production process is complex, the heating and cooling effects are poor, and the product forming efficiency is reduced in the rotational molding process, so that the rotational molding device and the rotational molding method for forming the solid reinforcing rib in one step are provided.
The purpose of the invention can be realized by the following technical scheme:
a rotational molding device for forming a solid reinforcing rib in one step comprises a rotational molding shell and a rotational molding container body, wherein the rotational molding shell is arranged on a base, a base is arranged on one side of the top surface of the rotational molding shell, and a mechanical claw for grabbing a mold body is arranged on the base;
the rotational molding shell comprises a melting cavity, a cooling cavity and a discharging cavity, the cooling cavity is positioned between the melting cavity and the discharging cavity, a material taking port is arranged on the top surface of the discharging cavity, a box door is movably mounted on the side wall, away from the discharging cavity, of the melting cavity, a first motor is arranged on the inner bottom surface of the rotational molding shell, the output end of the first motor is connected with a screw rod, the screw rod penetrates through the sliding seat and is connected with the sliding seat in a threaded manner, the bottom surface of the sliding seat is in sliding connection with the inner bottom surface of the rotational molding shell, a mounting frame is arranged on the top surface of the sliding seat, and a rotational molding container body is arranged;
rotational moulding vessel body includes a first rotational moulding section of thick bamboo, a second rotational moulding section of thick bamboo and bulge loop, a first rotational moulding section of thick bamboo and a second rotational moulding section of thick bamboo are one side open-ended hollow structure, and second rotational moulding section of thick bamboo open-ended one side is provided with the bulge loop, a first rotational moulding section of thick bamboo open-ended one side is provided with the annular slab, the cover is equipped with seal ring on the annular slab, and with bulge loop sliding connection, form strengthening rib shaping groove between annular slab and the bulge loop, be provided with the charge door on the first rotational moulding section of thick bamboo, charge door department is provided with the sealing plug.
Preferably, one side of the first rotational molding cylinder, which is far away from the opening, is provided with a first rotary cylinder, one side of the second rotational molding cylinder, which is far away from the opening, is provided with a second rotary cylinder, the outer wall of the first rotary cylinder is sleeved with a driven gear, the driven gear is meshed with a driving gear, the driving gear is connected with the output end of a second motor, the second motor is installed on a second sliding plate, and the second sliding plate is connected with the installation frame.
Preferably, the outer walls of the first rotating drum and the second rotating drum are sleeved with limiting rings, the limiting rings are rotatably connected with the first sliding plate, limiting pulleys are arranged on the top surface of the first sliding plate and rotatably connected with the limiting rings, the first sliding plate is slidably connected with the mounting frame, and threaded holes matched with the screw rods are formed in the first sliding plate.
Preferably, a second sliding plate is slidably mounted on the mounting frame, a threaded hole matched with the screw rod is formed in the second sliding plate, the screw rod is connected with the output end of a fourth motor, the fourth motor is arranged on the side wall of the mounting frame, the second motor is mounted on the second sliding plate, the output end of the second motor is connected with the driving gear, the driving gear is meshed with the driven gear, and the driven gear is sleeved on the first rotary drum.
Preferably, the heating mechanism is respectively arranged on two sides of the inner wall of the melting cavity, the condensing mechanism is respectively arranged on two sides of the inner wall of the cooling cavity, and the heating mechanism and the condensing mechanism have the same structure.
Preferably, the heating mechanism and the condensing mechanism are respectively provided with a splitter plate, spray holes and a blowing mechanism, the splitter plate is arranged on the inner wall of the rotational molding shell, the splitter plate is close to the side wall of the rotational molding shell and communicated with the air outlet end of the connecting pipe, the air inlet end of the connecting pipe extends to the rotational molding shell, the splitter plate is far away from the side wall of the rotational molding shell and is provided with the spray holes at equal intervals, the shells are respectively arranged on the upper side and the lower side of the splitter plate, and a blowing assembly is arranged in the.
Preferably, the subassembly of blowing includes the third motor, the drive shaft, drive bevel gear, driven bevel gear, bull stick and flabellum, the third motor is installed on the casing, the output and the drive shaft connection of third motor, the drive shaft rotates and installs in the casing, and equidistant cover is equipped with the drive bevel gear of multiunit on the drive shaft, drive bevel gear is connected with driven bevel gear meshing, driven bevel gear is connected with the bull stick, the other end of bull stick passes the casing and keeps away from the lateral wall of rotational moulding casing, and rotate with the casing and be connected, the other end and the flabellum of bull stick are connected.
Preferably, the melting chamber, be provided with the partition door between cooling chamber and the ejection of compact chamber, the partition door is connected by two sets of side doors, one side of side door is rotated and is installed on the inner wall of rotational moulding casing, and the inner wall swing joint of lateral wall middle part through electronic hydraulic stem and rotational moulding casing of side door, two sets of side door bottom is provided with the through-hole with screw rod looks adaptation, rotational moulding casing keeps away from one side of chamber door and installs control panel, control panel pass through the PLC controller respectively with first motor, the second motor, the third motor, fourth motor and the communication connection of liquid electricity hydraulic stem.
A processing method of a rotational molding device for forming a solid reinforcing rib in one step comprises the following steps:
s1, opening a box door, adding materials into the rotational molding container body from a feeding port, then opening a connecting pipe on a heating mechanism to input a heat source into a splitter plate, spraying the materials from spray holes on the splitter plate, heating the materials in the rotational molding container body, controlling a second motor to rotate to drive a driving gear to rotate, driving the driving gear to drive a first rotary drum to rotate through a driven gear, then driving the first rotary drum and a second rotational molding drum to rotate, overturning and flowing the materials in the rotational molding container body in a heated state, melting and adhering to the inner surface of the rotational molding container body after the temperature reaches a material softening point, then controlling a fourth motor to rotate in a forward direction to drive a screw rod to rotate in the material melting state, so that a first sliding plate of the first rotary drum, a second sliding plate and a first sliding plate of the second rotary drum move close to each other, so that the annular plate of the first rotational molding cylinder and the convex ring of the second rotational molding cylinder are close to each other, and materials in the reinforcing rib forming grooves are extruded, so that the reinforcing ribs on the formed die body are of a solid structure;
meanwhile, a third motor is controlled to work, the third motor drives a driving shaft to rotate, and the driving shaft drives a rotating rod and fan blades on the rotating rod to rotate under the meshing action between a driving bevel gear and a driven bevel gear;
s2, after the mold body is molded, the electric hydraulic rod is controlled to contract through the control panel to open the partition door, the first motor is controlled to work to drive the screw rod to rotate, the sliding seat slides into the cooling cavity along the inner wall of the bottom surface of the rotational molding shell, the partition door is closed, the rotational molding container body moves into the cooling cavity, then the cold source is input into the flow distribution plate through the connecting pipe on the condensing mechanism and is sprayed out from the spray holes on the flow distribution plate, and materials in the rotational molding container body are uniformly cooled and shaped through the rotating fan blades; then, the electric hydraulic cylinder is controlled to contract to enable the partition door to be opened, the screw rod is driven to rotate through the work of the first motor, the rotational molding container body is moved into the discharging cavity, the fourth motor rotates reversely to drive the screw rod to rotate, the first sliding plate and the second sliding plate of the first rotary drum are separated from each other, and then the rotational molding mold body is taken out through the mechanical claw.
Compared with the prior art, the invention has the beneficial effects that: opening a box door, adding materials into the rotational molding container body from a feeding port, then opening a connecting pipe on a heating mechanism to input a heat source into the splitter plate, spraying the materials from spray holes on the splitter plate, heating the materials in the rotational molding container body, controlling a second motor to rotate, driving a driving gear to rotate, driving the driving gear to rotate through a driven gear to drive a first rotary drum to rotate, then driving the first rotary drum and a second rotational molding drum to rotate, overturning and flowing the materials in the rotational molding container body in a heated state, melting and adhering the materials on the inner surface of the rotational molding container body after the temperature reaches a material softening point, then controlling a fourth motor to rotate forwardly to drive a screw rod to rotate in a material melting state, so that a first sliding plate, a second sliding plate and a first sliding plate of the second rotary drum are close to each other and move, the annular plate of the first rotational molding cylinder and the convex ring of the second rotational molding cylinder are close to each other, materials in the reinforcing rib forming grooves are extruded, the reinforcing ribs on the formed mold body are of a solid structure, the problem that in the prior art, a secondary filling method is adopted, the complexity of the production and processing process is increased, the quality of the filling method is difficult to guarantee, high technical requirements on the shape and the cleanliness of a welding surface are met, the filling is not solid, air holes are formed in the middle of the filling method, the filling material and a product are poor in fusion and poor in strength, a plastic welding gun cannot be filled due to the fact that the space of some local structures is small, stress can be generated due to thermal shrinkage of the filling material, meanwhile, the problems of welding quality detection and difficulty in visual finding are solved; the secondary welding of the external strengthening ribs is adopted, so that the complexity of the production and processing process is increased, high technical requirements are required on the shape and the cleanness of a welding surface, and the risk of welding defects exists;
meanwhile, the third motor is controlled to work, the third motor drives the driving shaft to rotate, the driving shaft drives the rotating rod and the fan blades on the rotating rod to rotate under the meshing action between the driving bevel gear and the driven bevel gear, and the flow of hot source gas in the rotational molding container body is increased, so that the material in the rotational molding container body is uniformly heated, the rotational molding efficiency of a product is greatly improved, and the rotational molding quality of the product is improved;
after the mold body is molded, the electric hydraulic rod is controlled to contract through the control panel so that the partition door is opened, the first motor is controlled to work to drive the screw rod to rotate, the sliding seat slides into the cooling cavity along the inner wall of the bottom surface of the rotational molding shell and then closes the partition door, so that the rotational molding container body moves into the cooling cavity, then a cold source is input into the flow distribution plate through a connecting pipe on the condensing mechanism and is sprayed out from a spray hole on the flow distribution plate, and materials in the rotational molding container body are uniformly cooled and shaped through the rotating fan blades; then, the electronic pneumatic cylinder shrink of control again makes the partition door open, and drive the screw rod through first motor work and rotate, make the rotational moulding container body remove in the ejection of compact intracavity, rethread fourth motor reversal, drive the lead screw and rotate, make the first slide of first rotary drum, alternate segregation between the first slide of second slide and second rotary drum, then the rethread gripper takes out the mould body after the rotational moulding is good, it fixes in an organic whole to have realized that the rotational moulding device adds thermal forming for required shape and cooling, the work efficiency of rotational moulding device has been improved greatly.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic overall perspective structure of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a schematic view of the internal structure of the rotational molding housing of the present invention.
Fig. 4 is a schematic perspective view of a rotational molding container body according to the present invention.
Figure 5 is a front view of a rotomoulded container body according to the present invention.
Fig. 6 is a schematic structural diagram of the connection relationship between the first rotational molding cylinder and the second rotational molding cylinder in the present invention.
Fig. 7 is a schematic structural view of a heating mechanism and a condensing mechanism in the present invention.
Fig. 8 is a schematic structural connection diagram of the blowing assembly according to the present invention.
In the figure: 1. a melting chamber; 2. a cooling chamber; 3. a discharge cavity; 4. a base; 5. a base; 6. a gripper; 7. a box door; 8. a rotational molding device; 9. a heating mechanism; 10. a condensing mechanism; 11. a partition door; 12. a first motor; 13. a slide base; 14. a screw; 15. installing a frame; 16. a screw rod; 17. a first rotating drum; 18. a second rotating drum; 19. a first rotational molding cylinder; 20. a second rotational molding cylinder; 21. a feed inlet; 22. a limiting ring; 23. a limiting pulley; 24. a first slide plate; 25. a second motor; 26. a driving gear; 27. a driven gear; 28. a second slide plate; 29. a convex ring; 30. a mold body; 31. a flow distribution plate; 32. spraying a hole; 33. a housing; 34. a third motor; 35. a drive shaft; 36. a drive bevel gear; 37. a driven bevel gear; 38. a rotating rod; 39. a fan blade; 40. an annular plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, a rotational molding device for forming a solid reinforcing rib in one step includes a rotational molding housing and a rotational molding container body, the rotational molding housing is mounted on a base 4, a base 5 is mounted on one side of the top surface of the rotational molding housing, and a mechanical claw 6 for grabbing a mold body 30 is arranged on the base 5;
the rotational molding shell comprises a melting cavity 1, a cooling cavity 2 and a discharging cavity 3, wherein the cooling cavity 2 is positioned between the melting cavity 1 and the discharging cavity 3, a material taking port is formed in the top surface of the discharging cavity 3, a box door 7 is movably mounted on the side wall, far away from the discharging cavity 3, of the melting cavity 1, a first motor 12 is arranged on the inner bottom surface of the rotational molding shell, the output end of the first motor 12 is connected with a screw 14, the screw 14 penetrates through a sliding seat 13 to be connected and is in threaded connection with the sliding seat 13, the bottom surface of the sliding seat 13 is in sliding connection with the inner bottom surface of the rotational molding shell, an installation frame 15 is arranged on the top surface of the sliding seat 13, and a rotational molding container body is arranged;
rotational moulding vessel includes first rotational moulding section of thick bamboo 19, second rotational moulding section of thick bamboo 20 and bulge loop 29, first rotational moulding section of thick bamboo 19 and second rotational moulding section of thick bamboo 20 are one side open-ended hollow structure, and 20 open-ended one sides of second rotational moulding section of thick bamboo are provided with bulge loop 29, 19 open-ended one side of first rotational moulding section of thick bamboo is provided with annular plate 40, the cover is equipped with seal ring on the annular plate 40, and with bulge loop 29 sliding connection, form strengthening rib shaping groove between annular plate 20 and the bulge loop 29, be provided with charge door 21 on the first rotational moulding section of thick bamboo 19, charge door 21 department is provided with the sealing plug.
One side of the first rotational molding barrel 19, which is far away from the opening, is provided with a first rotating barrel 17, one side of the second rotational molding barrel 20, which is far away from the opening, is provided with a second rotating barrel 18, the outer wall of the first rotating barrel 17 is sleeved with a driven gear 27, the driven gear 27 is meshed with a driving gear 26, the driving gear 26 is connected with the output end of a second motor 25, the second motor 25 is installed on a second sliding plate 28, and the second sliding plate 28 is connected with the installation frame 15.
The outer walls of the first rotary drum 17 and the second rotary drum 18 are sleeved with limiting rings 22, the limiting rings 22 are rotatably connected with first sliding plates 24, limiting pulleys 23 are arranged on the top surfaces of the first sliding plates 24, the limiting pulleys 23 are rotatably connected with the limiting rings 22, the first sliding plates 24 are slidably connected with the mounting frame 15, and threaded holes matched with the screw rods 16 are formed in the first sliding plates 24.
A second sliding plate 28 is slidably mounted on the mounting frame 15, a threaded hole matched with the screw rod 16 is formed in the second sliding plate 28, the screw rod 16 is connected with an output end of a fourth motor, the fourth motor is arranged on the side wall of the mounting frame 15, a second motor 25 is mounted on the second sliding plate 28, an output end of the second motor 25 is connected with a driving gear 26, the driving gear 26 is meshed with a driven gear 27, the driven gear 27 is sleeved on the first rotary drum 17, the fourth motor is controlled to rotate in the forward direction to drive the screw rod 16 to rotate, so that the first sliding plate 24 of the first rotary drum 17, the second sliding plate 28 and the first sliding plate 24 of the second rotary drum 18 move close to each other, the annular plate 40 of the first rotational molding drum 19 and the convex ring 29 of the second rotational molding drum 20 are close to each other, materials in the reinforcing rib forming grooves are extruded, and the reinforcing ribs on the formed mold body 30 are in a solid structure, the method solves the problems that in the prior art, a secondary filling method is adopted, the complexity of the production and processing process is increased, the quality of the filling method is difficult to ensure, high technical requirements are required on the shape and the cleanliness of a welding surface, the filling is not solid, air holes are formed in the middle of the welding surface, the filling material and a product are not well fused, the strength is poor, the filling of a plastic welding gun cannot be carried out due to small space of some local structures, the stress can be generated due to the thermal shrinkage of the filling material, the welding quality detection problem exists, the welding quality detection is difficult to find visually and; the secondary welding of the external strengthening ribs is adopted, the complexity of the production and processing process is increased, high technical requirements are required for the shape and the cleanliness of a welding surface, and the risk of welding defects exists.
The two sides of the inner wall of the melting cavity 1 are respectively provided with a heating mechanism 9, the two sides of the inner wall of the cooling cavity 2 are respectively provided with a condensing mechanism 10, and the structures of the heating mechanism 9 and the condensing mechanism 10 are the same.
The heating mechanism 9 and the condensing mechanism 10 are respectively provided with a splitter plate 31, spray holes 32 and a blowing mechanism, the splitter plate 31 is arranged on the inner wall of the rotational molding shell, the splitter plate 31 is close to the side wall of the rotational molding shell and is communicated with the air outlet end of the connecting pipe, the air inlet end of the connecting pipe extends to the rotational molding shell, the splitter plate 31 is far away from the side wall of the rotational molding shell and is provided with the spray holes 32 at equal intervals, the upper side and the lower side of the splitter plate 31 are respectively provided with a shell 33, and the shell 33 is internally provided.
The blowing component comprises a third motor 34, a driving shaft 35, a driving bevel gear 36, a driven bevel gear 37, a rotating rod 38 and fan blades 39, the third motor 34 is installed on the shell 33, the output end of the third motor 34 is connected with the driving shaft 35, the driving shaft 35 is rotatably installed in the shell 33, a plurality of groups of driving bevel gears 36 are sleeved on the driving shaft 35 at equal intervals, the driving bevel gears 36 are in meshed connection with the driven bevel gears 37, the driven bevel gears 37 are connected with the rotating rod 38, the other end of the rotating rod 38 penetrates through the side wall of the shell 33, away from the rotational molding shell, and is rotatably connected with the shell 33, the other end of the rotating rod 38 is connected with the fan blades 39, the third motor 34 is controlled to work, the driving shaft 35 is driven by the third motor 34 to rotate, the driving shaft 35 drives the rotating rod 38 and the fan blades 39 on the rotating rod 38 to rotate through the meshing action between the driving bevel gears 36 and, so that the materials in the rotational molding container body can be uniformly heated or cooled, and the rotational molding efficiency of the product is greatly improved.
Melting chamber 1, be provided with between cooling chamber 2 and the ejection of compact chamber 3 partition 11, partition 11 is connected by two sets of side doors, one side of side door is rotated and is installed on the inner wall of rotational moulding casing, and the inner wall swing joint of the lateral wall middle part of side door through electronic hydraulic stem and rotational moulding casing, two sets of side door bottom is provided with the through-hole with 14 looks adaptations of screw rod, rotational moulding casing keeps away from one side of chamber door 7 and installs control panel, control panel pass through the PLC controller respectively with first motor 12, second motor 25, third motor 34, fourth motor and liquid electric hydraulic stem communication connection.
A processing method of a rotational molding device for forming a solid reinforcing rib in one step comprises the following steps:
s1, opening the box door 7, adding the material into the rotational molding container body from the feeding port 21, then opening the connecting pipe on the heating mechanism 9 to input the heat source into the splitter plate 31, and spraying the heat source from the spraying holes 32 on the splitter plate 31 to heat the material in the rotational molding container body, controlling the second motor 25 to rotate to drive the driving gear 26 to rotate, driving the driving gear 26 to drive the first rotary drum 17 to rotate through the driven gear 27, then driving the first rotary drum 17 to drive the first rotational molding drum 19 and the second rotational molding drum 20 to rotate, turning and flowing the material in the rotational molding container body under the heated state, melting and adhering to the inner surface of the rotational molding container body after the temperature reaches the material softening point, and then controlling the fourth motor to rotate forwardly to drive the screw rod 16 to rotate under the material melting state, so that the first sliding plate 24, the screw rod 16 of the first rotary drum 17, The second sliding plate 28 and the first sliding plate 24 of the second rotating drum 18 move close to each other, so that the annular plate 40 of the first rotational molding drum 19 and the convex ring 29 of the second rotational molding drum 20 are close to each other, and the materials in the reinforcing rib forming grooves are extruded, so that the reinforcing ribs on the formed mold body 30 are of a solid structure;
meanwhile, the third motor 34 is controlled to work, the third motor 34 drives the driving shaft 35 to rotate, and the driving shaft 35 drives the rotating rod 38 and the fan blades 39 on the rotating rod 38 to rotate through the meshing action between the driving bevel gear 36 and the driven bevel gear 37;
s2, after the mold body 30 is molded, the electric hydraulic rod is controlled to contract through the control panel to open the partition door 11, the first motor 12 is controlled to work to drive the screw rod 14 to rotate, the sliding seat 13 slides into the cooling cavity 2 along the inner wall of the bottom surface of the rotational molding shell and closes the partition door 11, so that the rotational molding container body moves into the cooling cavity 2, then a cold source is input into the flow distribution plate 31 through a connecting pipe on the condensation mechanism 10 and is sprayed out from the spray holes 32 on the flow distribution plate 31, and materials in the rotational molding container body are uniformly cooled and shaped through the rotating fan blades 39; then, the electric hydraulic cylinder is controlled to contract to open the partition door 11, the first motor 12 works to drive the screw 14 to rotate, the rotational molding container body moves into the discharging cavity 3, the fourth motor rotates reversely to drive the screw rod 16 to rotate, the first sliding plate 24 and the second sliding plate 28 of the first rotary drum 17 are separated from the first sliding plate 24 of the second rotary drum 18, and then the rotational molding mold body 30 is taken out through the mechanical claw 6.
The working principle of the invention is as follows: opening a box door 7, adding materials into the rotational molding container body from a feeding port 21, then opening a connecting pipe on a heating mechanism 9 to input a heat source into a splitter plate 31, spraying the materials from spray holes 32 on the splitter plate 31 to heat the materials in the rotational molding container body, controlling a second motor 25 to rotate to drive a driving gear 26 to rotate, driving the driving gear 26 to drive a first rotary cylinder 17 to rotate through a driven gear 27, then driving the first rotary cylinder 17 to drive a first rotational molding cylinder 19 and a second rotational molding cylinder 20 to rotate, turning and flowing the materials in the rotational molding container body under the heated state, melting and adhering to the inner surface of the rotational molding container body after the temperature reaches a material softening point, and then controlling a fourth forward rotation motor to drive a screw rod 16 to rotate under the material melting state, so that a first sliding plate 24, a second sliding plate 24, a third sliding plate and a third sliding plate of the first rotary cylinder 17 are arranged on the inner surface of the rotational molding container, The second sliding plate 28 and the first sliding plate 24 of the second rotating drum 18 move close to each other, so that the annular plate 40 of the first rotational molding drum 19 and the convex ring 29 of the second rotational molding drum 20 are close to each other, materials in the reinforcing rib forming grooves are extruded, and the reinforcing ribs on the formed mold body 30 are in a solid structure, thereby solving the problems that in the prior art, a secondary filling method is adopted, the complexity of the production and processing process is increased, the quality of the filling method is difficult to ensure, high technical requirements on the shape and the cleanliness of a welding surface are required, the filling is not solid, air holes are formed in the middle, the fusion of a filling material and a product is poor, the local structure is small in space, the filling can not be filled by a plastic welding gun, the thermal shrinkage of the filling material can generate stress, meanwhile, the welding quality detection problem exists, the welding quality detection is difficult to find visually; the secondary welding of the external strengthening ribs is adopted, so that the complexity of the production and processing process is increased, high technical requirements are required on the shape and the cleanness of a welding surface, and the risk of welding defects exists;
meanwhile, the third motor 34 is controlled to work, the third motor 34 drives the driving shaft 35 to rotate, the driving shaft 35 drives the rotating rod 38 and the fan blades 39 on the rotating rod 38 to rotate under the meshing action between the driving bevel gear 36 and the driven bevel gear 37, and the flow of hot source gas in the rotational molding container body is increased, so that materials in the rotational molding container body are uniformly heated, the rotational molding efficiency of a product is greatly improved, and the rotational molding quality of the product is improved;
after the mold body 30 is molded, the electric hydraulic rod is controlled to contract through the control panel to open the partition door 11, the first motor 12 is controlled to work to drive the screw rod 14 to rotate, the sliding seat 13 slides into the cooling cavity 2 along the inner wall of the bottom surface of the rotational molding shell and then closes the partition door 11, so that the rotational molding container body moves into the cooling cavity 2, then a cold source is input into the flow distribution plate 31 through a connecting pipe on the condensation mechanism 10 and is sprayed out from the spray holes 32 on the flow distribution plate 31, and materials in the rotational molding container body are uniformly cooled and shaped through the rotating fan blades 39; then, the electric hydraulic cylinder is controlled to contract to open the partition door 11, the first motor 12 works to drive the screw 14 to rotate, the rotational molding container body moves into the discharging cavity 3, the fourth motor rotates reversely to drive the screw 16 to rotate, the first sliding plate 24 and the second sliding plate 28 of the first rotary drum 17 are separated from the first sliding plate 24 of the second rotary drum 18, and then the rotational molding mold body 30 is taken out through the mechanical claw 6, so that the rotational molding device is heated and molded into a required shape and is cooled and molded into a whole, and the working efficiency of the rotational molding device is greatly improved.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. The utility model provides a rotational moulding device of one shot forming for entity strengthening rib which characterized in that: the rotational molding device comprises a rotational molding shell and a rotational molding container body, wherein the rotational molding shell is arranged on a base (4), a base (5) is arranged on one side of the top surface of the rotational molding shell, and a mechanical claw (6) for grabbing a mold body (30) is arranged on the base (5);
the rotational molding shell comprises a melting cavity (1), a cooling cavity (2) and a discharging cavity (3), wherein the cooling cavity (2) is positioned between the melting cavity (1) and the discharging cavity (3), a material taking port is arranged on the top surface of the discharging cavity (3), a box door (7) is movably mounted on the side wall, away from the discharging cavity (3), of the melting cavity (1), a first motor (12) is arranged on the inner bottom surface of the rotational molding shell, the output end of the first motor (12) is connected with a screw rod (14), the screw rod (14) penetrates through the sliding seat (13) to be connected with the sliding seat (13) in a threaded manner, the bottom surface of the sliding seat (13) is in sliding connection with the inner bottom surface of the rotational molding shell, a mounting frame (15) is arranged on the top surface of the sliding seat (13), and a rotational molding container body is arranged on the mounting frame (15);
rotational moulding vessel body includes first rotational moulding section of thick bamboo (19), second rotational moulding section of thick bamboo (20) and bulge loop (29), first rotational moulding section of thick bamboo (19) and second rotational moulding section of thick bamboo (20) are one side open-ended hollow structure, and second rotational moulding section of thick bamboo (20) open-ended one side is provided with bulge loop (29), first rotational moulding section of thick bamboo (19) open-ended one side is provided with annular plate (40), the cover is equipped with seal ring on annular plate (40), and with bulge loop (29) sliding connection, form strengthening rib shaping groove between annular plate (20) and bulge loop (29), be provided with charge door (21) on first rotational moulding section of thick bamboo (19), charge door (21) department is provided with the sealing plug.
2. The rotational molding device for forming the solid reinforcing rib in one step as claimed in claim 1, wherein a first rotating drum (17) is arranged on one side of the first rotational molding drum (19) far away from the opening, a second rotating drum (18) is arranged on one side of the second rotational molding drum (20) far away from the opening, a driven gear (27) is sleeved on the outer wall of the first rotating drum (17), the driven gear (27) is meshed with a driving gear (26), the driving gear (26) is connected with the output end of a second motor (25), the second motor (25) is installed on a second sliding plate (28), and the second sliding plate (28) is connected with the installation frame (15).
3. The rotational molding device for forming the solid reinforcing rib in one step according to claim 2, wherein a limiting ring (22) is sleeved on the outer walls of the first rotating cylinder (17) and the second rotating cylinder (18), the limiting ring (22) is rotatably connected with a first sliding plate (24), a limiting pulley (23) is arranged on the top surface of the first sliding plate (24), the limiting pulley (23) is rotatably connected with the limiting ring (22), the first sliding plate (24) is slidably connected with the mounting frame (15), and a threaded hole matched with the screw rod (16) is formed in the first sliding plate (24).
4. The rotational molding device for forming a solid reinforcing rib in one step as claimed in claim 3, wherein a second sliding plate (28) is slidably mounted on the mounting frame (15), a threaded hole matched with the screw rod (16) is formed in the second sliding plate (28), the screw rod (16) is connected with an output end of a fourth motor, the fourth motor is arranged on a side wall of the mounting frame (15), a second motor (25) is mounted on the second sliding plate (28), an output end of the second motor (25) is connected with the driving gear (26), the driving gear (26) is meshed with the driven gear (27), and the driven gear (27) is sleeved on the first rotating drum (17).
5. A rotational moulding device for forming solid reinforcing bar in one piece according to claim 1, characterized in that the heating mechanism (9) is respectively arranged on two sides of the inner wall of the melting chamber (1), the condensing mechanism (10) is respectively arranged on two sides of the inner wall of the cooling chamber (2), and the heating mechanism (9) and the condensing mechanism (10) have the same structure.
6. The rotational molding device for forming the solid reinforcing rib in one step according to claim 5, wherein the heating mechanism (9) and the condensing mechanism (10) are respectively provided with a splitter plate (31), spray holes (32) and a blowing mechanism, the splitter plate (31) is installed on the inner wall of the rotational molding shell, the splitter plate (31) is communicated with the air outlet end of the connecting pipe close to the side wall of the rotational molding shell, the air inlet end of the connecting pipe extends to the rotational molding shell, the spray holes (32) are equidistantly arranged on the side wall of the splitter plate (31) far away from the rotational molding shell, the shells (33) are respectively installed on the upper side and the lower side of the splitter plate (31), and the blowing assembly is arranged in the shells (33).
7. The rotational molding device for forming a solid reinforcing bar in one step as claimed in claim 6, wherein the blowing assembly comprises a third motor (34), a driving shaft (35), a driving bevel gear (36), a driven bevel gear (37), a rotating rod (38) and fan blades (39), the third motor (34) is installed on the housing (33), the output end of the third motor (34) is connected with the driving shaft (35), the driving shaft (35) is rotatably installed in the housing (33), and a plurality of groups of driving bevel gears (36) are sleeved on the driving shaft (35) at equal intervals, the driving bevel gears (36) are meshed with driven bevel gears (37), the driven bevel gears (37) are connected with rotating rods (38), the other ends of the rotating rods (38) penetrate through the side wall of the shell (33) far away from the rotational molding shell, and is rotatably connected with the shell (33), and the other end of the rotating rod (38) is connected with the fan blade (39).
8. The rotational molding device for forming a solid reinforcing rib in one step according to claim 1, wherein a partition door (11) is arranged among the melting chamber (1), the cooling chamber (2) and the discharging chamber (3), the partition door (11) is connected by two groups of side doors, one side of each side door is rotatably installed on the inner wall of the rotational molding shell, the middle part of the side wall of each side door is movably connected with the inner wall of the rotational molding shell through an electric hydraulic rod, the bottom parts of the two groups of side doors are provided with through holes matched with the screw rods (14), a control panel is installed on one side of the rotational molding shell far away from the box door (7), and the control panel is respectively in communication connection with the first motor (12), the second motor (25), the third motor (34), the fourth motor and the electric hydraulic rod through a PLC controller.
9. A method of forming a solid bar in a single pass in a rotomoulded container as claimed in any one of claims 1 to 8, wherein the method of forming the solid bar comprises the steps of:
s1, opening a box door (7), adding materials into the rotational molding container body from a feeding port (21), then opening a connecting pipe on a heating mechanism (9) to input a heat source into a splitter plate (31), spraying the materials from spray holes (32) on the splitter plate (31), heating the materials in the rotational molding container body, controlling a second motor (25) to rotate to drive a driving gear (26) to rotate, driving the driving gear (26) to drive a first rotary drum (17) to rotate through a driven gear (27), then driving the first rotary drum (17) to drive a first rotational molding drum (19) and a second rotational molding drum (20) to rotate, turning and flowing the materials in the rotational molding container body in a heated state, melting and adhering to the inner surface of the rotational molding container body after the temperature reaches a material softening point, then controlling a fourth motor to rotate forwardly in a material melting state, the screw rod (16) is driven to rotate, so that the first sliding plate (24) and the second sliding plate (28) of the first rotary drum (17) and the first sliding plate (24) of the second rotary drum (18) are close to each other to move, the annular plate (40) of the first rotational molding drum (19) and the convex ring (29) of the second rotational molding drum (20) are close to each other, materials in the reinforcing rib forming grooves are extruded, and the reinforcing ribs on the formed mold body (30) are of a solid structure;
meanwhile, a third motor (34) is controlled to work, the third motor (34) drives a driving shaft (35) to rotate, and the driving shaft (35) drives a rotating rod (38) and fan blades (39) on the rotating rod (38) to rotate under the meshing action between a driving bevel gear (36) and a driven bevel gear (37);
s2, after the die body (30) is formed, the electric hydraulic rod is controlled to contract through the control panel to open the partition door (11), the first motor (12) is controlled to work to drive the screw rod (14) to rotate, the sliding seat (13) slides into the cooling cavity (2) along the inner wall of the bottom surface of the rotational molding shell and closes the partition door (11), so that the rotational molding container body moves into the cooling cavity (2), then a cold source is input into the flow distribution plate (31) through a connecting pipe on the condensing mechanism (10), then the cold source is sprayed out from the spray holes (32) on the flow distribution plate (31), and materials in the rotational molding container body are uniformly cooled and shaped through the rotating fan blades (39); then, the electric hydraulic cylinder is controlled to contract to open the partition door (11), the screw rod (14) is driven to rotate through the work of the first motor (12), the rotational molding container body is moved into the discharging cavity (3), the fourth motor rotates reversely to drive the screw rod (16) to rotate, the first sliding plate (24) and the second sliding plate (28) of the first rotary drum (17) are separated from the first sliding plate (24) of the second rotary drum (18), and then the rotational molded mold body (30) is taken out through the mechanical claw (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010582288.3A CN111688087A (en) | 2020-06-23 | 2020-06-23 | Rotational molding device and method for forming solid reinforcing rib in one step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010582288.3A CN111688087A (en) | 2020-06-23 | 2020-06-23 | Rotational molding device and method for forming solid reinforcing rib in one step |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111688087A true CN111688087A (en) | 2020-09-22 |
Family
ID=72483524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010582288.3A Withdrawn CN111688087A (en) | 2020-06-23 | 2020-06-23 | Rotational molding device and method for forming solid reinforcing rib in one step |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111688087A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112895261A (en) * | 2021-01-05 | 2021-06-04 | 安徽省宁国天亿滚塑有限公司 | Device and process for one-step forming of solid reinforcing ribs on rotational molding container |
| CN113320065A (en) * | 2021-05-24 | 2021-08-31 | 南通朋闻塑料科技有限公司 | Food insulation box rotational molding process capable of automatically loading and unloading materials |
-
2020
- 2020-06-23 CN CN202010582288.3A patent/CN111688087A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112895261A (en) * | 2021-01-05 | 2021-06-04 | 安徽省宁国天亿滚塑有限公司 | Device and process for one-step forming of solid reinforcing ribs on rotational molding container |
| CN113320065A (en) * | 2021-05-24 | 2021-08-31 | 南通朋闻塑料科技有限公司 | Food insulation box rotational molding process capable of automatically loading and unloading materials |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111889404B (en) | Mold cleaning equipment and method with low energy consumption and capable of cleaning all directions | |
| CN111688087A (en) | Rotational molding device and method for forming solid reinforcing rib in one step | |
| CN110757732B (en) | Injection molding process and injection molding device of multifunctional automobile instrument panel | |
| CN113021752B (en) | Injection molding machine with cooling device | |
| CN115195027B (en) | Ejection device and method for injection mold | |
| CN202716406U (en) | Inflating energy-saving rotational molding machine | |
| CN115847894B (en) | Manufacturing and processing technology of high-strength polyethylene pipe | |
| CN113414932A (en) | Plastic pipe injection molding system | |
| CN211221930U (en) | High-temperature injection mold | |
| CN213919782U (en) | Novel simple and easy integrated protection device | |
| CN112721020B (en) | Multi-station temperature control injection molding device | |
| CN213119894U (en) | Composite heat collection type evaporative pattern drying room | |
| CN210501107U (en) | Plastic pipe extrusion molding device | |
| CN211363146U (en) | Cable sheath production vulcanization molding drawing of patterns cooling equipment | |
| CN210011280U (en) | Insulation can box forming die | |
| CN207711338U (en) | It is a kind of can self-cleaning extruding machine | |
| CN219748891U (en) | Novel blow molding die | |
| CN215750594U (en) | Injection mold capable of achieving rapid forming | |
| CN217862399U (en) | Full-automatic rotational molding rotary forming device | |
| CN112895261B (en) | Device and process for one-step forming of solid reinforcing ribs on rotational molding container | |
| CN214521907U (en) | Cooling device for plastic suction mold | |
| CN219310008U (en) | Auxiliary heating mechanism for casting wax module tree | |
| CN221212657U (en) | Front cover injection mold | |
| CN115674611B (en) | Injection molding machine capable of continuously injection molding | |
| CN214726319U (en) | Electric hot melt cover extrusion equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200922 |