A conveying device for high-molecular raw material particles for processing and producing plastic bottle blanks

Abstract

The application belongs to the technical field of plastic bottle blank processing, and discloses a conveying device for high-molecular raw material particles in plastic bottle blank processing and production, which comprises a conveying pipeline composed of a horizontal pipe and a vertical pipe, a storage cylinder is arranged above the horizontal pipe, the storage cylinder is composed of a storage hopper and a material guide pipe, a blast assembly is arranged at one end of the horizontal pipe away from the vertical pipe, a blockage prevention mechanism is arranged in the material guide pipe, the blockage prevention mechanism is composed of a telescopic guide assembly and a driving assembly, a particle screening mechanism is arranged in the vertical pipe, the particle screening mechanism is composed of a screening mesh, a material tumbling assembly and a foreign matter discharging assembly, the foreign matter discharging assembly composed of a sealing part and a discharging part cooperates with the material tumbling assembly, so that the amplitude of the reciprocating movement of the screening mesh in the vertical direction can be conveniently controlled, the large-size particle raw materials can be screened, and the screened large-size particle raw materials can be automatically discharged to the outside of the vertical pipe.

Description

Technical Field

[0001] This invention relates to the field of plastic preform processing technology, specifically a conveying device for polymer raw material granules used in the processing and production of plastic preforms. Background Technology

[0002] Plastic bottles are mainly made of materials such as polyethylene or polypropylene with the addition of various organic solvents. Plastic bottles widely use polyester (PET), polyethylene (PE), and polypropylene (PP) as raw materials. After adding appropriate organic solvents, they are heated at high temperatures and then molded into plastic containers through blow molding, extrusion blow molding, or injection molding. During the processing of plastic preforms, polymer raw material granules are conveyed to the extruder for heat treatment and then injected into the mold for shaping.

[0003] Currently, the common method for conveying raw material particles is to directly move the particles within the pipe cavity using airflow. However, this existing method cannot simultaneously screen and remove large particles, which cannot be fully melted during subsequent processing, thus affecting molding quality. Furthermore, during the feeding process, the particles support each other through friction, interlocking, and cohesion, forming a self-stabilizing structure within the pipe, preventing the particles from falling freely. Summary of the Invention

[0004] The purpose of this invention is to provide a conveying device for polymer raw material granules used in the processing and production of plastic bottle preforms, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A conveying device for polymer raw material granules used in the processing of plastic bottle preforms includes a conveying pipe composed of a horizontal pipe and a vertical pipe. A storage cylinder is disposed above the horizontal pipe, and the storage cylinder is composed of a storage funnel and a guide pipe. The guide pipe is disposed at the bottom of the storage funnel and connected to the horizontal pipe. A central column is rotatably mounted inside the horizontal pipe. A blower assembly is disposed at the end of the horizontal pipe away from the vertical pipe to accelerate the airflow speed inside the horizontal pipe. An anti-clogging mechanism is disposed inside the guide pipe, and the anti-clogging mechanism is composed of a telescopic guide assembly and a drive assembly. The telescopic guide assembly is disposed inside the guide pipe, and the drive assembly is connected to the telescopic guide assembly. The drive assembly and the telescopic guide assembly cooperate with each other to... The granular raw material in the storage hopper is continuously fed into the guide pipe. A particle screening mechanism is installed inside the vertical pipe. The particle screening mechanism consists of a screen plate, a tilting component, and a waste removal component. The tilting component is located at the end of the central column and connected to the screen plate. The tilting component is used to control the screen plate to move back and forth vertically in the inner cavity of the vertical pipe. The waste removal component consists of an inner waste removal port, a sealing part, and a discharge part. Multiple inner waste removal ports are arranged in a ring at the edge of the screen plate. The sealing part is located on the surface of the screen plate and is used to control the inner waste removal ports to be in a closed state. The discharge part is connected to the tilting component and is used to guide large-sized granular raw materials from the surface of the screen plate to the outside of the vertical pipe.

[0007] As a further aspect of the present invention: the blower assembly includes fan blades fixedly mounted on the surface of the central column, a plurality of evenly distributed ventilation holes are opened on the surface of the horizontal tube, a motor is fixedly mounted at the end of the horizontal tube, and the output shaft of the motor is connected to the central column.

[0008] As a further aspect of the present invention: the telescopic guiding assembly includes two first support frames fixedly installed in the inner cavity of the guide tube and distributed vertically, and the two first support frames are slidably mounted with a breaking rod in the vertical direction.

[0009] As a further embodiment of the present invention: the driving assembly includes a bearing column rotatably mounted on the inner side wall of the guide tube, a first synchronous gear plate fixedly mounted on the surface of the bearing column, a second synchronous gear plate fixedly mounted on the surface of the central column, the first synchronous gear plate and the second synchronous gear plate being connected together by a synchronous belt, a guide plate fixedly mounted at the end of the bearing column, and a first push-pull rod rotatably mounted on the surface of the guide plate at a position off-center from the center via a rotating shaft, the end of the first push-pull rod away from the guide plate being rotatably connected to the bottom end of the breaking rod.

[0010] As a further aspect of the present invention: the material tilting assembly includes two second support frames fixedly installed in the inner cavity of the vertical tube and distributed in the vertical direction. A connecting rod is slidably installed on the second support frame in the vertical direction. The bottom end of the connecting rod is fixedly connected to the screen plate. A control disk is fixedly installed on the end of the central column facing the vertical tube. A second push-pull rod is rotatably installed on the surface of the control disk at a position off from the center. The end of the second push-pull rod away from the control disk is rotatably connected to the top end of the connecting rod.

[0011] As a further embodiment of the present invention: the sealing part includes a sealing plate rotatably installed inside the inner discharge port, an annular surrounding plate is fixedly installed on the bottom wall of the screen plate, an annular cavity is formed between the surrounding plate and the inner side wall of the vertical pipe, a compression spring is fixedly installed on the side wall of the surrounding plate, the extension end of the compression spring is connected to the sealing plate, and an outer discharge port communicating with the annular cavity is opened on the side wall of the vertical pipe.

[0012] As a further aspect of the present invention: the discharge section includes a radial groove formed on the surface of the control panel, a sliding block is slidably installed in the radial groove, the end of the sliding block extends to the outside of the control panel and is rotatably connected to the second push-pull rod, an electric telescopic rod is fixedly installed in the radial groove, the telescopic end of the electric telescopic rod is connected to the sliding block, and a pressure rod located above the sealing plate is fixedly installed on the inner side wall of the vertical pipe.

[0013] As a further aspect of the present invention: a protective cover located directly above the first synchronous gear disc is fixedly installed on the inner wall of the feed tube.

[0014] As a further embodiment of the present invention: a U-shaped frame is fixedly installed on the inner side wall of the feed tube, and the U-shaped frame is rotatably connected to the bearing column.

[0015] As a further aspect of the present invention, the top end of the breaking rod is provided with barbs.

[0016] Compared with the prior art, the beneficial effects of the present invention are: by setting the telescopic conduction component and the drive component to cooperate with each other, the granular raw material at the connection between the storage funnel and the guide pipe can be impacted, so that the granular raw material can fall continuously and stably. This solves the problem that in the current feeding process, the granules support each other through friction, interlocking force and cohesion, forming a self-stabilizing structure in the pipe, and the granular raw material cannot fall freely.

[0017] By setting up a waste removal assembly consisting of a sealing section and a discharge section, which works in conjunction with a material tilting assembly, the amplitude of the vertical reciprocating movement of the screen plate can be easily controlled. This not only allows for the screening of large-sized granular raw materials but also automatically discharges the screened large-sized granules to the outside of the vertical pipe. This solves the current problem of not being able to screen and remove large-sized particles while conveying materials, and the inability of large-sized particles to fully melt during subsequent processing, thus affecting the molding quality. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a conveying device for polymer raw material particles used in the processing and production of plastic bottle preforms, provided in an embodiment of the present invention.

[0019] Figure 2 This is a front view schematic diagram of a conveying device for polymer raw material particles used in the processing and production of plastic bottle preforms, provided in an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the horizontal and vertical pipes in a conveying device for processing polymer raw material particles for plastic bottle preforms provided in an embodiment of the present invention.

[0021] Figure 4 for Figure 2 A magnified structural diagram of A in the middle.

[0022] Figure 5 for Figure 2 A magnified structural diagram of B in the diagram.

[0023] Figure 6 This is a schematic diagram of the screen plate and its connection structure in a conveying device for polymer raw material particles used in the processing and production of plastic bottle preforms, provided in an embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the control panel and its connection structure in a conveying device for polymer raw material granules used in the processing and production of plastic bottle preforms, provided in an embodiment of the present invention.

[0025] Among them: 1-Conveying pipe, 11-Horizontal pipe, 12-Vertical pipe, 2-Storage cylinder, 21-Storage funnel, 22-Guide pipe, 3-Central column, 4-Blower assembly, 41-Fan blade, 42-Ventilation hole, 43-Motor, 5-Anti-clogging mechanism, 51-Telescopic guide assembly, 511-First support frame, 512-Break rod, 52-Drive assembly, 521-Bearing column, 522-First synchronous gear, 523-Second synchronous gear, 524-Synchronous belt, 525-Guide disc, 526-First push-pull rod, 6- Particle screening mechanism, 61-screen plate, 62-pumping assembly, 621-second support frame, 622-connecting rod, 623-control panel, 624-second push-pull rod, 63-impurity discharge assembly, 631-inner impurity discharge port, 632-sealing part, 6321-enclosing plate, 6322-sealing plate, 6323-compression spring, 6324-outer impurity discharge port, 633-discharge part, 6331-radial groove, 6332-electric telescopic rod, 6333-sliding block, 6334-pressure rod, 7-protective cover, 8-U-shaped frame. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0027] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0028] like Figure 1 , Figure 2 , Figure 3The diagram shows a structural diagram of a conveying device for polymer raw material granules used in the processing of plastic preforms according to an embodiment of the present invention. The device includes a conveying pipe 1, which consists of a horizontal pipe 11 and a vertical pipe 12. A storage cylinder 2 is disposed above the horizontal pipe 11. The storage cylinder 2 consists of a storage funnel 21 and a guide pipe 22. The guide pipe 22 is disposed at the bottom of the storage funnel 21 and is connected to the horizontal pipe 11. A central column 3 is rotatably mounted inside the horizontal pipe 11. A blower assembly 4 is disposed at the end of the horizontal pipe 11 away from the vertical pipe 12 to accelerate the airflow speed inside the horizontal pipe 11. An anti-clogging mechanism 5 is disposed inside the guide pipe 22. The anti-clogging mechanism 5 consists of a telescopic conduction assembly 51 and a drive assembly 52. ​​The telescopic conduction assembly 51 is disposed inside the guide pipe 22, and the drive assembly 52 is connected to the telescopic conduction assembly 51. The drive assembly 52 and the telescopic conduction assembly 51 are mutually... In conjunction with this, the granular raw material in the storage funnel 21 is continuously fed into the guide pipe 22. A granular screening mechanism 6 is provided inside the vertical pipe 12. The granular screening mechanism 6 consists of a screen plate 61, a tilting component 62, and a waste removal component 63. The tilting component 62 is located at the end of the central column 3 and is connected to the screen plate 61. The tilting component 62 is used to control the screen plate 61 to move back and forth vertically in the inner cavity of the vertical pipe 12. The waste removal component 63 consists of an inner waste removal port 631, a sealing part 632, and a discharge part 633. Multiple inner waste removal ports 631 are arranged in a ring at the edge of the screen plate 61. The sealing part 632 is located on the surface of the screen plate 61 and is used to control the inner waste removal ports 631 to be in a closed state. The discharge part 633 is connected to the tilting component 62 and is used to guide large-sized granular raw materials on the surface of the screen plate 61 to the outside of the vertical pipe 12.

[0029] A batch of granular raw materials is stored in the storage funnel 21. During use, the blower assembly 4 introduces high-speed air into the horizontal pipe 11. The granular raw materials in the storage funnel 21 fall into the horizontal pipe 11 through the guide pipe 22. The high-speed air pushes the granular raw materials in the horizontal pipe 11 to move into the vertical pipe 12 and fall downward into the extruder. The blower assembly 4 controls the rotation of the central column 3 around its own axis. The drive assembly works in conjunction with the telescopic guide assembly 51 to impact the granular raw materials at the connection between the storage funnel 21 and the guide pipe 22. This prevents the granules from supporting each other through friction, interlocking, and cohesion, forming a self-stabilizing structure within the pipe, allowing the granular raw materials to fall stably and freely.

[0030] As the granular material moves downward within the vertical pipe 12, it falls onto the surface of the screen plate 61. The tilting assembly 62 controls the screen plate 61 to reciprocate vertically within the vertical pipe 12, allowing for efficient screening and filtration of the granular material. During screening and filtration, the sealing part 632 keeps the inner discharge port 631 closed. When a certain amount of large-sized granular material is trapped on the surface of the screen plate 61, the discharge part 633 controls the inner discharge port 631 to switch to a through-hole state, allowing the large-sized granular material to pass through. The discharge part 633 then controls the large-sized granular material to be automatically discharged further to the outside of the vertical pipe 12.

[0031] like Figure 1 , Figure 2 , Figure 3 As shown, in a preferred embodiment of the present invention, the blower assembly 4 includes a fan blade 41 fixedly mounted on the surface of the central column 3, a plurality of evenly distributed ventilation holes 42 opened on the surface of the horizontal tube 11, and a motor 43 fixedly mounted at the end of the horizontal tube 11, the output shaft of the motor 43 being connected to the central column 3.

[0032] In use, motor 43 drives the central column 3 to rotate, and the central column 3 drives the fan blade 41 to rotate inside the horizontal tube 11. The fan blade 41 can accelerate the airflow inside the horizontal tube 11. The high-speed air can push the particulate material inside the horizontal tube 11 towards the vertical tube 12.

[0033] like Figure 2 , Figure 3 , Figure 4 As shown, in a preferred embodiment of the present invention, the telescopic conductive assembly 51 includes two first support frames 511 fixedly installed in the inner cavity of the guide tube 22 and distributed in the vertical direction, and the two first support frames 511 are slidably mounted with a breaking rod 512 in the vertical direction.

[0034] The first support frame 511 positions the breaking rod 512 inside the feed tube 22. When the central column 3 rotates, the drive assembly 52 controls the breaking rod 512 to move back and forth in the vertical direction. When the breaking rod 512 moves upward, it inserts into the granular raw material accumulated at the bottom of the storage funnel 21, thereby breaking the mutual support between the particles maintained by friction, interlocking force and cohesion, so that the granular raw material falls continuously and stably into the feed tube 22.

[0035] like Figure 2 , Figure 3 , Figure 4As shown, in a preferred embodiment of the present invention, the drive assembly 52 includes a support column 521 rotatably mounted on the inner sidewall of the guide tube 22. A first synchronous gear 522 is fixedly mounted on the surface of the support column 521, and a second synchronous gear 523 is fixedly mounted on the surface of the center column 3. The first synchronous gear 522 and the second synchronous gear 523 are connected together by a synchronous belt 524. A guide plate 525 is fixedly mounted on the end of the support column 521. A first push-pull rod 526 is rotatably mounted on the surface of the guide plate 525 at a position off-center from the center via a rotating shaft. The end of the first push-pull rod 526 away from the guide plate 525 is rotatably connected to the bottom end of the breaking rod 512.

[0036] The central column 3 drives the second synchronous gear 523 to rotate. The second synchronous gear 523 cooperates with the synchronous belt 524 to drive the first synchronous gear 522 to rotate. The first synchronous gear 522 drives the bearing column 521 to rotate around its own axis. The bearing column 521 drives the guide plate 525 to rotate synchronously. When the guide plate 525 rotates, it matches with the first push-pull rod 526, which can control the reciprocating movement of the breaking rod 512 in the vertical direction.

[0037] like Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown, in a preferred embodiment of the present invention, the material feeding assembly 62 includes two second support frames 621 fixedly installed in the inner cavity of the vertical tube 12 and distributed in the vertical direction. The second support frames 621 are slidably mounted with connecting rods 622 in the vertical direction. The bottom end of the connecting rods 622 is fixedly connected to the screen plate 61. A control disk 623 is fixedly installed at one end of the central column 3 facing the vertical tube 12. A second push-pull rod 624 is rotatably installed on the surface of the control disk 623 at a position off the center. The end of the second push-pull rod 624 away from the control disk 623 is rotatably connected to the top end of the connecting rod 622.

[0038] The second support frame 621 positions the connecting rod 622 inside the vertical tube 12. The connecting rod 622 suspends and positions the screen plate 61. When the central column 3 rotates, it drives the control disk 623 to rotate synchronously. The control disk 623 and the second push-pull rod 624 cooperate with each other to drive the connecting rod 622 and the screen plate 61 to move back and forth in the vertical direction inside the vertical tube 12.

[0039] like Figure 1 , Figure 5 , Figure 6As shown, in a preferred embodiment of the present invention, the sealing part 632 includes a sealing plate 6322 rotatably installed inside the inner discharge port 631, an annular surrounding plate 6321 is fixedly installed on the bottom wall of the screen plate 61, an annular cavity is formed between the surrounding plate 6321 and the inner side wall of the vertical tube 12, a compression spring 6323 is fixedly installed on the side wall of the surrounding plate 6321, the extension end of the compression spring 6323 is connected to the sealing plate 6322, and an outer discharge port 6324 communicating with the annular cavity is opened on the side wall of the vertical tube 12.

[0040] During screening, the compression spring 6323 supports and positions the sealing plate 6322, and the sealing plate 6322 controls the inner discharge port 631 to remain closed. When it is necessary to discharge large-sized particles from the surface of the screening mesh plate 61, the discharge part 633 controls the sealing plate 6322 to rotate downward. At this time, the inner discharge port 631 switches to the open state, and the large-sized particles from the surface of the screening mesh plate 61 fall into the annular cavity through the inner discharge port 631. The large-sized particles in the annular cavity are automatically discharged to the outside of the vertical pipe 12 through the outer discharge port 6324.

[0041] like Figure 5 , Figure 6 , Figure 7 As shown, in a preferred embodiment of the present invention, the discharge section 633 includes a radial groove 6331 formed on the surface of the control panel 623. A sliding block 6333 is slidably installed in the radial groove 6331. The end of the sliding block 6333 extends to the outside of the control panel 623 and is rotatably connected to the second push-pull rod 624. An electric telescopic rod 6332 is fixedly installed in the radial groove 6331. The telescopic end of the electric telescopic rod 6332 is connected to the sliding block 6333. A pressure rod 6334 located above the sealing plate 6322 is fixedly installed on the inner side wall of the vertical pipe 12.

[0042] Initially, when the control disc 623 rotates, the screen plate 61 remains separated from the pressure rod 6334 as it moves upward. When it is necessary to discharge large-sized granular raw materials, the electric telescopic rod 6332 pushes the sliding block 6333 to move within the radial groove 6331, thereby adjusting the top position of the second push-pull rod 624 and increasing the rotation radius of its top. At this time, when the control disc 623 moves upward, it can increase the movement range of the screen plate 61. When the screen plate 61 moves upward, it comes into contact with the pressure rod 6334, which squeezes the sealing plate 6322, causing it to rotate downward. At this time, the inner discharge port 631 switches to the through state.

[0043] like Figure 4 As shown, in a preferred embodiment of the present invention, a protective cover 7 located directly above the first synchronous gear disc 522 is fixedly installed on the inner wall of the feed tube 22.

[0044] The protective cover 7 can prevent falling particulate materials from falling between the first synchronous toothed disc 522 and the second synchronous toothed disc 523.

[0045] like Figure 4 As shown, in a preferred embodiment of the present invention, a U-shaped frame 8 is fixedly installed on the inner side wall of the guide tube 22, and the U-shaped frame 8 is rotatably connected to the bearing column 621.

[0046] like Figure 4 As shown, in a preferred embodiment of the present invention, the top end of the breaking rod 512 is provided with barbs.

[0047] The working principle of this invention is as follows: A batch of granular raw materials is stored in the storage funnel 21. During use, the motor 43 drives the central column 3 to rotate, and the central column 3 drives the fan blades 41 to rotate inside the horizontal tube 11. The fan blades 41 can accelerate the airflow inside the horizontal tube 11. The high-speed air can push the granular raw materials inside the horizontal tube 11 towards the vertical tube 12.

[0048] The central column 3 drives the second synchronous gear disc 523 to rotate. The second synchronous gear disc 523 cooperates with the synchronous belt 524 to drive the first synchronous gear disc 522 to rotate. The first synchronous gear disc 522 drives the bearing column 521 to rotate around its own axis. The bearing column 521 drives the guide disc 525 to rotate synchronously. When the guide disc 525 rotates, it matches with the first push-pull rod 526 to control the reciprocating movement of the breaking rod 512 in the vertical direction. When the breaking rod 512 moves upward, it inserts into the granular raw material accumulated at the bottom of the storage funnel 21, thereby breaking the mutual support between the particles maintained by friction, interlocking force, and cohesion, so that the granular raw material falls continuously and stably into the guide pipe 22.

[0049] When the central column 3 rotates, it drives the control disk 623 to rotate synchronously. The control disk 623 cooperates with the second push-pull rod 624 to drive the connecting rod 622 and the screen plate 61 to move back and forth vertically within the vertical tube 12. Particle raw materials fall onto the surface of the screen plate 61, which can efficiently screen and filter the particles. During screening and filtering, the inner discharge port 631 remains closed. When a certain amount of large-sized particles are trapped on the surface of the screen plate 61, the electric telescopic rod 6332 pushes the sliding block 6333 to move within the radial groove 6331, thereby adjusting the top position of the second push-pull rod 624 and increasing the rotation radius of the top of the second push-pull rod 624. When the control panel 623 moves upward, it increases the movement range of the screen plate 61. As the screen plate 61 moves upward, it contacts the pressure rod 6334, which then presses against the sealing plate 6322, causing the sealing plate 6322 to rotate downward. At this time, the inner discharge port 631 switches to the through-hole state. Large-sized particles from the surface of the screen plate 61 fall into the annular cavity through the inner discharge port 631. The large-sized particles in the annular cavity are then automatically discharged to the outside of the vertical pipe 12 through the outer discharge port 6324.

[0050] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A conveying device for polymer raw material granules used in the processing of plastic bottle preforms, comprising a conveying pipe (1), the conveying pipe (1) being composed of a horizontal pipe (11) and a vertical pipe (12), a storage cylinder (2) being provided above the horizontal pipe (11), the storage cylinder (2) being composed of a storage funnel (21) and a guide pipe (22), the guide pipe (22) being provided at the bottom of the storage funnel (21) and connected to the horizontal pipe (11), characterized in that, A central column (3) is rotatably installed in the inner cavity of the horizontal tube (11), and a blower assembly (4) is provided at the end of the horizontal tube (11) away from the vertical tube (12). The blower assembly (4) is used to accelerate the air flow speed in the inner cavity of the horizontal tube (11). The feed tube (22) is provided with an anti-blocking mechanism (5), which is composed of a telescopic conduction component (51) and a drive component (52); The telescopic guide assembly (51) is disposed inside the feed pipe (22). The drive assembly (52) is connected to the telescopic guide assembly (51). The drive assembly (52) and the telescopic guide assembly (51) cooperate with each other to control the continuous falling of the granular raw material in the storage funnel (21) into the feed pipe (22). The vertical tube (12) is equipped with a particle screening mechanism (6), which consists of a screen plate (61), a material tilting assembly (62), and a waste removal assembly (63). The material-turning assembly (62) is located at the end of the central column (3) and connected to the screen plate (61). The material-turning assembly (62) is used to control the screen plate (61) to move back and forth in the vertical direction in the inner cavity of the vertical tube (12). The impurity removal component (63) consists of an inner impurity removal port (631), a sealing part (632), and a discharge part (633). Multiple inner impurity removal ports (631) are arranged in a ring at the edge of the screen plate (61). The sealing part (632) is disposed on the surface of the screen plate (61), and the sealing part (632) is used to control the inner discharge port (631) to be in a closed state; The discharge section (633) is connected to the material feeding assembly (62). The discharge section (633) is used to guide large-sized granular raw materials on the surface of the screen plate (61) to the outside of the vertical pipe (12).

2. The conveying device for polymer raw material granules used in the processing and production of plastic bottle preforms according to claim 1, characterized in that, The blower assembly (4) includes a fan blade (41) fixedly installed on the surface of the central column (3), and a plurality of evenly distributed ventilation holes (42) are opened on the surface of the horizontal tube (11). A motor (43) is fixedly installed at the end of the horizontal tube (11), and the output shaft of the motor (43) is connected to the central column (3).

3. The conveying device for polymer raw material granules used in the processing and production of plastic bottle preforms according to claim 1, characterized in that, The telescopic guide assembly (51) includes two first support frames (511) fixedly installed in the inner cavity of the guide tube (22) and distributed in the vertical direction. The two first support frames (511) are slidably installed with a breaking rod (512) in the vertical direction.

4. The conveying device for polymer raw material granules used in the processing and production of plastic bottle preforms according to claim 3, characterized in that, The drive assembly (52) includes a support column (521) rotatably mounted on the inner wall of the guide tube (22). A first synchronous gear plate (522) is fixedly mounted on the surface of the support column (521). A second synchronous gear plate (523) is fixedly mounted on the surface of the center column (3). The first synchronous gear plate (522) and the second synchronous gear plate (523) are connected together by a synchronous belt (524). A guide plate (525) is fixedly mounted at the end of the support column (521). A first push-pull rod (526) is rotatably mounted on the surface of the guide plate (525) at a position off the center via a rotating shaft. The end of the first push-pull rod (526) away from the guide plate (525) is rotatably connected to the bottom end of the breaking rod (512).

5. The conveying device for polymer raw material granules used in the processing and production of plastic bottle preforms according to claim 1, characterized in that, The material tilting assembly (62) includes two second support frames (621) fixedly installed in the inner cavity of the vertical tube (12) and distributed in the vertical direction. The second support frames (621) are slidably mounted with connecting rods (622) in the vertical direction. The bottom end of the connecting rods (622) is fixedly connected to the screen plate (61). The end of the central column (3) facing the vertical tube (12) is fixedly mounted with a control disk (623). The surface of the control disk (623) is rotatably mounted with a second push-pull rod (624) at a position off the center. The end of the second push-pull rod (624) away from the control disk (623) is rotatably connected to the top end of the connecting rod (622).

6. The conveying device for polymer raw material granules used in the processing and production of plastic bottle preforms according to claim 5, characterized in that, The sealing part (632) includes a sealing plate (6322) rotatably installed inside the inner discharge port (631). An annular surrounding plate (6321) is fixedly installed on the bottom wall of the screen plate (61). An annular cavity is formed between the surrounding plate (6321) and the inner side wall of the vertical tube (12). A compression spring (6323) is fixedly installed on the side wall of the surrounding plate (6321). The telescopic end of the compression spring (6323) is connected to the sealing plate (6322). An outer discharge port (6324) communicating with the annular cavity is opened on the side wall of the vertical tube (12).

7. The conveying device for polymer raw material granules used in the processing and production of plastic bottle preforms according to claim 6, characterized in that, The discharge section (633) includes a radial groove (6331) on the surface of the control panel (623). A sliding block (6333) is slidably installed in the radial groove (6331). The end of the sliding block (6333) extends to the outside of the control panel (623) and is rotatably connected to the second push-pull rod (624). An electric telescopic rod (6332) is fixedly installed in the radial groove (6331). The telescopic end of the electric telescopic rod (6332) is connected to the sliding block (6333). A pressure rod (6334) located above the sealing plate (6322) is fixedly installed on the inner wall of the vertical pipe (12).

8. The conveying device for polymer raw material granules used in the processing and production of plastic bottle preforms according to claim 4, characterized in that, The inner wall of the feed tube (22) is fixedly fitted with a protective cover (7) located directly above the first synchronous gear disc (522).

9. The conveying device for polymer raw material granules used in the processing and production of plastic bottle preforms according to claim 4, characterized in that, A U-shaped frame (8) is fixedly installed on the inner wall of the feed tube (22), and the U-shaped frame (8) is rotatably connected to the support column (621).

10. The conveying device for polymer raw material granules used in the processing and production of plastic bottle preforms according to claim 3, characterized in that, The tip of the breaking rod (512) is provided with barbs.

Images