CN118322516A - A polymer plastic molding device - Google Patents

Abstract

The present invention relates to the technical field of polymer plastic molding devices, and specifically, to a polymer plastic molding device, including a protective block, a molding shell with an axis inclined downward fixedly connected to the lower side of the protective block, an auger column rotatably connected inside the molding shell for extruding and flowing the hot-melt plastic, a feed trough for moving materials into the molding shell is provided at the connection between the molding shell and the protective block, a feed port is provided at the top of the protective block, a material delivery component for crushing materials of different sizes fed into the feed port and transferring them into the molding shell is connected between the feed trough and the feed port, and an exhaust pipe is fixedly connected to one end of the molding shell facing the feed port. Through the above technical scheme, the overall melting efficiency of the material is guaranteed to be uniform, the material is prevented from being carbonized due to overheating, the air content in the hot-melt plastic is reduced, and the output effect of the material is increased, thereby increasing the practicality of the device.

Description

A polymer plastic molding device

Technical Field

The invention relates to the technical field of polymer plastic molding devices, and in particular to a polymer plastic molding device.

Background technique

The most common application area of polymer materials is plastic products, such as plastic pipes, plastic bags, plastic tableware, etc. They are especially widely used in daily necessities in the home and industrial fields. Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, used for material packaging. The production of plastic film requires the use of a plastic film extruder. The working process of a traditional plastic film extruder is to load solid particles into the feed port of the extruder. As the auger column rotates, the solid particles are continuously moved to the part with the heating device, the plastic melts, and finally is extruded from one end of the extruder, quickly contacts with the coolant, and finally forms a plastic film as a preliminary product.

In the prior art, a plastic pipe forming device with application number 202211630707.1 includes a frame, a melting device, and a forming device. The melting device includes a heating cylinder, a central sleeve, a heating plate, a first baffle, a driving mechanism and an adjusting mechanism. The heating cylinder is fixed to the frame, and a feed port is provided on the upper end cover of the heating cylinder; there are multiple heating plates, all of which are located in the heating cylinder and are spaced in sequence along the vertical direction; except for the heating plate located at the top, sieve holes are provided on the other heating plates, and the sieve holes on the heating plates gradually decrease from top to bottom; the central sleeve can be slidably installed in the heating cylinder, and moves up and down under the drive of the driving mechanism, and drives Multiple odd-numbered heating plates counted from top to bottom move downward to squeeze the material between them and the adjacent heating plates below; the first baffle is used to block the feed port, and when the center sleeve moves upward to a preset range, the first baffle moves to open the feed port, and when the center sleeve moves downward out of the preset range, the first baffle moves to block the feed port; the movement of the center sleeve downward from the preset range and then upward back to the preset range is a cycle, and the adjustment mechanism adjusts the actual feed size of the feed port according to the amount of molten material in the heating cylinder within one cycle, so that the actual feed amount of the feed port matches the molten material; the molding device receives the molten material in the heating cylinder and extrude the tube into shape.

The above technology contains the following technical problems in implementation. When plastic solid particles are melted into liquid, they will become sticky. Therefore, materials of different particle sizes will fall on heating plates with different apertures and be screened and hot-melted at the same time. Some liquid materials will block some meshes with smaller apertures. At the same time, plastic has the characteristic of light texture. After hot melting, most of the material will flow downward with gravity, and a small amount of material will adhere to the heating plate, thereby reducing the output of the material and increasing the difficulty of cleaning and maintenance of components. In addition, during the working process, before the previous batch is completely melted, the next batch of falling materials will adhere to the previous batch of melted materials, reducing the screening effect of the mesh and reducing the practicality of the device.

Summary of the invention

The present invention provides a polymer plastic molding device, which ensures uniform overall melting efficiency of materials, prevents carbonization of materials due to overheating, reduces the air content in hot-melt plastics, thereby increasing the output effect of materials and the practicability of the device.

The technical solution of the present invention is as follows:

A polymer plastic molding device comprises a protective block, a molding shell with an axis inclined downward is fixedly connected to the lower side of the protective block, an auger column is rotatably connected inside the molding shell for extruding and flowing the hot-melt plastic, a feed trough is provided at the connection between the molding shell and the protective block for moving the material into the molding shell, a feed port is provided at the top of the protective block, a feeding assembly is connected between the feed trough and the feed port for crushing the materials of different sizes fed into the feed port and transferring them into the molding shell, an exhaust pipe is fixedly connected to one end of the molding shell facing the feed port, an air handling unit for reaction treatment of exhaust gas discharged from the exhaust pipe is connected to one side of the molding shell, a driving assembly for linkage driving of the feeding assembly and the auger column is connected between the exhaust pipe and the feed trough, and a base for mounting a heating block is fixedly connected to the lower side of the molding shell.

Furthermore, the material delivery assembly includes a material delivery block, the material delivery block is slidably connected in the protective block, the material delivery block is fixedly connected to a bearing column on the side facing the material inlet, a limit seat is sleeved on the bearing column, the limit seat is rotatably connected to the first transmission rod on the upper and lower sides, a first gear is fixedly connected between the two first transmission rods, and the bearing column is fixedly connected to the transmission seat at one end facing the first transmission rod, the transmission seat is rotatably connected to the second transmission rod on the upper and lower sides, a second gear is fixedly connected between the two second transmission rods, the first gear is meshed with the second gear, and the upper and lower sides of the first gear and the second gear are abutted with limit plates for limiting the first gear and the second gear, and a crushing assembly is connected to the upper side of the first gear.

Furthermore, the crushing assembly includes a partition plate, which is fixedly connected in the protective block, and the partition plate is rotatably connected to a linkage column on one side facing the feed inlet, and a small fan and a crushing knife are fixedly connected to the upper and lower cylindrical surfaces of the linkage column respectively, and the first gear is fixedly connected to the linkage column at the top end of the first transmission rod facing the upper side.

Furthermore, the driving assembly includes a support plate, which is fixedly connected to the inner wall of the forming shell, and a driven column is rotatably connected to the support plate, a transmission column is fixedly connected between the auger column and the driven column, a second transmission plate is rotatably connected to the transmission column, an end of the second transmission plate away from the transmission column is hinged to the first transmission plate, an end of the first transmission plate away from the second transmission plate is hinged to the material transfer block, an oblique upward end of the driven column is connected to a motor, the motor is fixedly connected to an oblique upward end of the forming shell, and a driving shaft of the motor passes through the forming shell and is fixedly connected to the driven column.

Furthermore, an exhaust port is provided on the support plate.

Furthermore, a material collection trough is provided in the protection block, the material collection trough is located between the material feed trough and the material feed port, the material transfer block abuts against the inner wall of the material collection trough, the partition plate is fixedly connected in the material collection trough, and the limit seat is fixedly connected between the partition plate and the bottom wall of the material collection trough.

Furthermore, a material transfer groove is provided on the material transfer block.

Furthermore, the size of the slot opening of the feed chute is 1/4 of the length of the material transfer block, and the size of the slot opening of the material transfer chute is 1/3 of the length of the material transfer block.

The working principle and beneficial effects of the present invention are:

In the present invention, the material delivery component can grind and crush materials of different particle sizes, and enable these crushed materials to automatically enter the molding shell in batches for melting and extrusion, thereby accelerating the efficiency of material melting and preventing part of the material from being over-melted and carbonized due to different particle sizes, thereby increasing the practicality of the device. The molding shell with an axis inclined downward is fixedly connected to the lower side of the protective block. The molding shell is placed obliquely to reduce the tendency of the melted material to tilt toward this side, thereby reducing the area of contact between the material squeezed to this position and the air, thereby ensuring the elimination of bubbles in the material and the material discharging effect. The driving component enables the device to drive all components of the device to operate with only one driving source, thereby reducing the use cost of the device. The device components are simple, which facilitates the manufacture of the device and reduces the manufacturing cost of the device.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

FIG1 is a partially cutaway isometric schematic diagram of the present invention;

FIG2 is a partial isometric cross-sectional view of the molded shell of the present invention;

FIG3 is a partially enlarged exploded schematic diagram of a component of the present invention;

FIG4 is a partial enlarged schematic diagram of the present invention;

FIG5 is an enlarged schematic diagram of A in FIG3 ;

FIG6 is a partial exploded enlarged schematic diagram of FIG5 ;

FIG. 7 is an isometric schematic diagram of the present invention.

In the figure: 11, base; 12, molding shell; 13, protection block; 131, feed trough; 132, material collection trough; 14, feed port; 15, partition plate; 16, exhaust pipe; 17, support plate; 171, exhaust port; 18, motor; 19, air handling unit; 2, material delivery assembly; 21, auger column; 22, first transmission rod; 23, material delivery block; 231, material delivery trough; 232, first transmission plate; 24, second transmission plate; 25, driven column; 26, transmission column; 27, limit seat; 28, small fan; 29, linkage column; 210, crushing knife; 211, limit plate; 212, first gear; 213, transmission seat; 214, second gear; 215, bearing column; 216, second transmission rod.

Detailed ways

The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Example 1

As shown in Figures 1 to 7, this embodiment proposes a polymer plastic molding device, in which a molding shell 12 with an axis inclined downward is fixedly connected to the lower side of a protective block 13. The molding shell 12 is placed obliquely to reduce the tendency of the melted material to tilt toward this side, thereby reducing the area of contact between the material extruded to this position and the air, thereby ensuring the elimination of bubbles in the material and the discharge effect of the material. An auger column 21 for extruding and flowing the hot-melt plastic is rotatably connected to the molding shell 12, and a feed trough 131 for moving the material into the molding shell 12 is provided at the connection between the molding shell 12 and the protective block 13. A feed port 14 for feeding the material is provided at the top of the protective block 13, and a material delivery group for crushing materials of different sizes fed into the feed port 14 and transferring them into the molding shell 12 is connected between the feed trough 131 and the feed port 14. Part 2, the material delivery component 2 can grind and crush materials of different particle sizes, and make these crushed materials automatically enter the molding shell 12 in batches for melting and extrusion, which accelerates the efficiency of material melting and also eliminates the problem of materials being over-melted and carbonized due to different particle sizes, thereby increasing the practicality of the device. The exhaust pipe 16 is fixedly connected to one end of the molding shell 12 facing the feed port 14, and one side of the molding shell 12 is connected to the air handling unit 19 for reacting and treating the exhaust gas discharged from the exhaust pipe 16. The driving component of the material delivery component 2 and the auger column 21 are connected between the exhaust pipe 16 and the feed trough 131, and the base 11 with the heating block is fixedly connected to the lower side of the molding shell 12. The driving component enables one driving source of the device to drive all components of the device to work, thereby reducing the use cost of the device.

As shown in Figures 2 to 5, the material transfer block 23 is slidably connected in the protective block 13, the bearing column 215 is fixedly connected to the side of the material transfer block 23 facing the material inlet 14, the limit seat 27 is sleeved on the bearing column 215, the two first transmission rods 22 are respectively rotatably connected to the upper and lower sides of the limit seat 27, the first gear 212 is fixedly connected between the two first transmission rods 22, the transmission seat 213 is fixedly connected to one end of the bearing column 215 facing the first transmission rod 22, and the two second transmission rods 216 are respectively rotatably connected to the upper and lower sides of the transmission seat 213. The second gear 214 is fixedly connected between the two second transmission rods 216, the first gear 212 is meshed with the second gear 214, and the upper and lower sides of the first gear 212 and the second gear 214 are respectively abutted against two limit plates 211 for limiting the first gear 212 and the second gear 214, so that the forward and backward movement of the material delivery block 23 can drive the first gear 212 and the second gear 214 to mesh and rotate, and then drive the first transmission rod 22 to rotate, so that one driving source can drive multiple components to work together, thereby reducing the cost of use.

As shown in Figures 2 to 5, the partition plate 15 is fixedly connected in the protective block 13, the linkage column 29 is rotatably connected to the side of the partition plate 15 facing the feed inlet 14, the small fan 28 and the crushing knife 210 are respectively fixedly connected to the upper and lower side column surfaces of the linkage column 29, and the top of the first transmission rod 22 facing the upper side of the first gear 212 is fixedly connected to the linkage column 29. The small fan 28 ensures that the wind flows from the feed inlet 14 to the partition plate 15, so that after the material contacts the crushing knife 210 and becomes lighter particles, it will not leak to the outside due to the wind field generated by the crushing knife 210, and as the wind follows the guidance of the partition plate 15, the crushed material moves continuously in one direction, and the crushing knife 210 shreds the materials of different particle sizes uniformly, thereby increasing the efficiency of uniform melting of the materials, so that the materials of different particle sizes will not be carbonized due to different melting times, thereby ensuring the output of the materials and increasing the practicality of the device.

As shown in Figures 3 and 4, the support plate 17 is fixedly connected to the inner wall of the molding shell 12, the driven column 25 is rotatably connected to the support plate 17, the transmission column 26 is fixedly connected between the auger column 21 and the driven column 25, the second transmission plate 24 is rotatably connected to the transmission column 26, the end of the second transmission plate 24 away from the transmission column 26 is hinged to the first transmission plate 232, the end of the first transmission plate 232 away from the second transmission plate 24 is hinged to the material transfer block 23, the motor 18 is fixedly connected to the obliquely upward end of the molding shell 12, and the motor 18 is fixedly connected to the upper end of the molding shell 12. The driving shaft of the machine 18 passes through the forming shell 12 and is fixedly connected to the driven column 25. The motor 18 directly drives the rotation of the auger column 21, so that the material can be melted and then extruded and moved toward the extrusion port along the auger column 21. The transmission column 26 is located between the auger column 21 and the driven column 25. Like the working principle of the eccentric wheel, the rotation of the driven column 25 can drive the second transmission plate 24 connected to the transmission column 26 to move up and down, and then drive the movement of the material delivery block 23, thereby reducing the driving source and reducing the cost of using the device.

As shown in FIG. 2 , the exhaust port 171 is opened on the support plate 17 , so that the exhaust gas formed in the molded shell 12 can flow through the exhaust port 171 to the exhaust pipe 16 for discharge.

As shown in Figures 1 to 6, the material collection trough 132 is opened in the protective block 13, and the material collection trough 132 is located between the feed trough 131 and the feed port 14. The material transfer block 23 abuts against the inner wall of the material collection trough 132, and the partition plate 15 is fixedly connected in the material collection trough 132. The limit seat 27 is fixedly connected between the partition plate 15 and the bottom wall of the material collection trough 132. The partition plate 15 divides the material collection trough 132 into two layers. The partition plate 15 protects the limit seat 27 and other components on the lower side, and at the same time guides the crushed material on the upper side of the partition plate 15, so that the crushed material can move to the specified position along the partition plate 15.

As shown in Figures 2 and 3, the material delivery trough 231 is opened on the material delivery block 23, so that when the material delivery block 23 is at the far left, the crushed material will accumulate on the material delivery block 23, and when the material delivery block 23 moves to the right, with the blocking of the partition plate 15, the crushed material will fall into the material delivery trough 231, and as the material delivery block 23 moves, the material delivery trough 231 is connected with the feed trough 131, allowing the crushed material to fall into the molding shell 12.

As shown in Figures 2 to 4, the size of the slot of the feed trough 131 is 1/4 of the length of the material transfer block 23, and the size of the slot of the feed trough 231 is 1/3 of the length of the material transfer block 23, ensuring that after the material transfer block 23 moves to the side away from the limiting seat 27, the material transfer trough 231 is separated from the slot of the feed trough 131, so that the remaining part of the material transfer block 23 can block the upper end of the feed trough 131, so that the gas generated in the molding shell 12 will not be discharged from the feed trough 131.

The working principle of this embodiment is:

First, pour materials of different particle sizes through the feed port 14, start the motor 18 and the air handling machine 19 to work, the motor 18 drives the driven column 25 to rotate, and then drives the auger column 21 to rotate, so that the auger column 21 has the function of squeezing and moving the materials, the transmission column 26 is non-coaxially aligned with the driven column 25, so that the transmission column 26 rotates with the driven column 25 to produce an eccentric wheel phenomenon, so that the second transmission plate 24 moves up and down with the driven column 25, and then drives the material transfer block 23 to move left and right in the material collection trough 132;

When the second transmission plate 24 moves upward, it drives the material transfer block 23 to move toward the material inlet 14, so that the material transfer slot 231 is connected with the material inlet slot 131; on the contrary, the material transfer block 23 moves in the opposite direction, so that the material transfer slot 231 is cut off from the material inlet slot 131, and the material transfer block 23 blocks the material inlet slot 131;

The movement of the material delivery block 23 will also move the driving seat 213 with the bearing column 215, so that the first gear 212 and the second gear 214 are meshed and rotated. The first gear 212 rotates through the second transmission rod 216 as the bearing column 215 moves, and the first gear 212 rotates around the connection between the first transmission rod 22 and the limit seat 27, thereby rotating the first transmission rod 22, and the small fan 28 and the crushing knife 210 connected to the first transmission rod 22 rotate synchronously. Because the extrusion speed of the auger column 21 is not very fast, The wind force formed by the small fan 28 will also be very small. The small fan 28 ensures that the wind inlet 14 blows toward the partition plate 15, so that the material powder that is crushed by the crushing knife 210 and is sufficiently blown by the wind can be guided to the delivery block 23 along the partition plate 15. After the delivery trough 231 leaks out, the material falls into the delivery trough 231, so that the material can be continuously crushed and enter the molding shell 12 for heat dissolution and extrusion. The exhaust gas generated by the hot dissolution will be discharged from the exhaust pipe 16 farthest from the extrusion port, and discharged through the treatment of the air handling unit 19 to protect the working environment.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a polymer plastic forming device, includes protection piece (13), its characterized in that, protection piece (13) downside fixedly connected with axis decurrent shaping casing (12), shaping casing (12) internal rotation is connected with carries out extrusion flow's auger post (21) to plastics after the hot melt, shaping casing (12) and protection piece (13) junction has seted up and has moved material pan feeding groove (131) in shaping casing (12), pan feeding mouth (14) have been seted up on protection piece (13) top, be connected with between pan feeding groove (131) and pan feeding mouth (14) and carry out breakage and transfer into material that send into pan feeding mouth (14) not uniform in size and send into shaping casing (12) delivery subassembly (2), shaping casing (12) are towards one end fixedly connected with blast pipe (16) of pan feeding mouth (14), shaping casing (12) one side is connected with carries out reaction treatment's air treatment machine (19) to blast pipe (16) exhaust gas, is connected with between blast pipe (16) and pan feeding groove (131) delivery subassembly (2) and drive auger (21) side drive the fixed bed of driving subassembly (11), shaping casing (12) side is connected with the base.

2. The high polymer plastic forming device according to claim 1, wherein the material delivering component (2) comprises a material delivering block (23), the material delivering block (23) is slidably connected in the protective block (13), a bearing column (215) is fixedly connected to one side of the material delivering block (23) facing the material inlet (14), a limiting seat (27) is sleeved on the bearing column (215), a first transmission rod (22) is rotatably connected to the upper side and the lower side of the limiting seat (27), a first gear (212) is fixedly connected between the two first transmission rods (22), a transmission seat (213) is fixedly connected to one end of the bearing column (215) facing the first transmission rod (22), a second transmission rod (216) is rotatably connected to the upper side and the lower side of the transmission seat (213), a second gear (214) is fixedly connected between the two second transmission rods (216), the first gear (212) is meshed with the second gear (214), and the first gear (212) and the lower side of the second gear (214) are rotatably connected with a limiting disc (211).

3. The high polymer plastic forming device according to claim 2, wherein the crushing assembly comprises a partition plate (15), the partition plate (15) is fixedly connected in the protection block (13), a linkage column (29) is rotationally connected to one side of the partition plate (15) facing the feeding port (14), a small fan (28) and a crushing cutter (210) are respectively fixedly connected to the upper side column surface and the lower side column surface of the linkage column (29), and the top end of a first transmission rod (22) of the first gear (212) facing the upper side is fixedly connected with the linkage column (29).

4. A polymer plastic forming device according to claim 2, wherein the driving assembly comprises a supporting plate (17), the supporting plate (17) is fixedly connected to the inner wall of the forming shell (12), a driven column (25) is rotationally connected to the supporting plate (17), a transmission column (26) is fixedly connected between the auger column (21) and the driven column (25), a second transmission plate (24) is rotationally connected to the transmission column (26), a first transmission plate (232) is hinged to one end, far away from the transmission column (26), of the second transmission plate (24), one end, far away from the second transmission plate (24), of the first transmission plate (232) is hinged to the delivery block (23), a motor (18) is fixedly connected to one inclined upper end of the forming shell (12), and a driving shaft of the motor (18) penetrates through the forming shell (12) and is fixedly connected with the driven column (25).

5. The polymer molding apparatus as claimed in claim 4, wherein the support plate (17) is provided with an exhaust port (171).

6. The polymer plastic forming device according to claim 1, wherein a material collecting groove (132) is formed in the protective block (13), the material collecting groove (132) is located between the material inlet groove (131) and the material inlet opening (14), the material delivery block (23) is abutted to the inner wall of the material collecting groove (132), the partition plate (15) is fixedly connected in the material collecting groove (132), and the limiting seat (27) is fixedly connected between the partition plate (15) and the bottom wall of the material collecting groove (132).

7. A polymeric plastics moulding apparatus according to claim 2, wherein the delivery block (23) is provided with a delivery slot (231).

8. The polymer plastic molding device according to claim 7, wherein the slot opening of the feeding slot (131) is 1/4 of the length of the feeding block (23), and the slot opening of the feeding slot (231) is 1/3 of the length of the feeding block (23).