Raw material loading and conveying device for plastic product production

Abstract

The invention relates to the field of spiral conveyors, and discloses a raw material loading and conveying device for plastic product production, the raw material loading and conveying device comprises an upper sleeve and a lower sleeve located at the lower end of the upper sleeve, a feeding assembly is fixedly arranged at the upper end of one side of the upper sleeve, and the feeding assembly is used for improving the efficiency when raw materials enter the device and guaranteeing normal work of the device; the raw material loading and conveying device for plastic product production has the advantages that the raw material loading and conveying device is provided with the feeding assembly and the cleaning assembly, wear-resisting strips can slow down the wear speed, can be automatically attached to the inner wall and can effectively prevent material leakage, and the raw material loading and conveying device is convenient to use and high in practicability. The service life of equipment is prolonged, the maintenance frequency is reduced, and the maintenance steps are simplified. Meanwhile, the cleaning assembly can automatically remove residual raw materials on the surface of the spiral blade, long-term adhesion of the raw materials is avoided, the material blocking probability is reduced, and the situation that the blade weight is increased due to raw material accumulation and energy consumption is too high is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of screw conveyors, in particular to a raw material loading and conveying device for producing plastic products. Background Art

[0002] In the patent application with application announcement number CN216334706U, it includes a screw conveyor body, and the bottom of both ends of the screw conveyor body is movably fitted with a fixed seat, the top of the fixed seat is fixedly provided with a V-shaped groove used in conjunction with the screw conveyor body, and limit devices are fixedly provided on both sides of the screw conveyor body, connecting rods are symmetrically fixed at both ends of the bottom of the fixed seat, the bottom of the connecting rod is movably sleeved with a fixing rod, and the bottom of the fixing rod is fixedly provided with a bottom plate, an electric push rod is fixedly provided on the top of the bottom plate between the two fixing rods, and the telescopic end of the electric push rod is fixedly connected to the bottom of the fixed seat, the bottom four corners of the bottom of the bottom plate are fixedly provided with a connecting seat, the bottom of the connecting seat is fixedly provided with an installation groove, a movable rod is movably inserted in the installation groove, a buffer spring is fixedly provided between the top of the movable rod and the installation groove, and a universal wheel is fixedly provided at the bottom of the movable rod. The advantages are: this type of plastic production screw conveyor fixes the screw conveyor on a fixed seat through a limiting device, so that the screw conveyor can be moved easily through the universal wheel, and after moving, the height of the lower port of the screw conveyor can be adjusted by an electric push rod and the screw conveyor can be used directly, which reduces the installation process and improves the plastic production efficiency.

[0003] In the prior art including the above-mentioned patents, the spiral blades and the tube wall may have a large gap when in use due to the reasons such as the high hardness and weight of the raw materials and the increase in the use time, which may lead to material leakage. In addition, the existing screw conveyors need to be shut down for a long time for maintenance. This not only has cumbersome operation steps and a long time required, which affects production efficiency, but also causes material blockage due to various reasons during use, which makes it difficult to ensure the stability of the device during operation. Summary of the invention

[0004] The problem to be solved by the present invention is that the conveying efficiency of the spiral blades is reduced after being worn, and a long time is required for maintenance. The steps are relatively complicated and the economic cost required is high.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a raw material loading and conveying device for the production of plastic products, comprising an upper sleeve and a lower sleeve located at its lower end, a loading assembly is fixedly provided on the upper end of one side of the upper sleeve, and the loading assembly is used to improve the efficiency of the raw materials entering the device and ensure the normal operation of the device, a feeding assembly is provided between the upper sleeve and the lower sleeve, and an installation groove is fixedly provided in the middle of the lower end of the lower sleeve, and a cleaning assembly is provided in the installation groove, and the cleaning assembly can remove residues on the surface of the feeding assembly.

[0006] Preferably, a sliding rod is arranged above the upper sleeve, and two sliding rods are arranged symmetrically along the center line of the upper sleeve. Both ends of the sliding rod are slidably connected to the upper sleeve. A cover plate is arranged between the sliding rods, and the cover plate covers the middle part of the upper end of the upper sleeve. The upper sleeve and the lower sleeve are fixed by bolts. The lower end of the lower sleeve is located at the end away from the loading assembly and is provided with a unloading port, and the mounting groove is located directly below the cover plate.

[0007] Preferably, the feeding assembly includes a shaft body, which is located in the middle of the upper sleeve and the lower sleeve. A spiral blade is fixedly provided on the outer surface of the shaft body. There are two spiral blades in total. Several telescopic rods are provided between the two spiral blades. One end of the telescopic rod is fixedly connected to the shaft body, and a counterweight ball is fixedly provided on the other end of the telescopic rod.

[0008] Preferably, the counterweight ball is slidably connected to the spiral blades on both sides, and a wear-resistant strip is provided on the outer side of the counterweight ball. The wear-resistant strip is provided between the two spiral blades, and the outer side of the wear-resistant strip contacts the inner walls of the upper casing and the lower casing, while the outer side of the spiral blade does not contact the inner walls of the upper casing and the lower casing.

[0009] Preferably, the cleaning component includes a conveyor belt, a rotating rod is provided inside the conveyor belt, the rotating rod inside the conveyor belt is rotatably connected to the mounting groove, the end of the conveyor belt is located at the unloading port of the lower sleeve, and columns are fixedly provided on the outer surface of the conveyor belt, and the columns are grouped in pairs. Each group of columns is located on both sides of the spiral blade, and the columns are slidably connected to the spiral blade, and the columns are made of elastomer.

[0010] Preferably, the feeding assembly includes a shell, which is L-shaped and located on one side of the cover plate. The shell is slidably connected to the upper sleeve, and a baffle plate is slidably provided on one side of the interior of the shell. The length of the baffle plate is two-thirds of the length of the shell at the feeding port, and a rack is fixedly provided on one side of the baffle plate close to the cover plate.

[0011] Preferably, pneumatic rod 1 is provided on both sides of rack 1, one end of pneumatic rod 1 is fixedly connected to the material baffle plate, and the other end of pneumatic rod 1 is fixedly connected to the shell, the lower end of rack 1 is located on the side away from the material baffle plate and is meshed with a gear, the lower end of the gear is meshed with rack 2, and the length of rack 2 is smaller than the length of rack 1.

[0012] Preferably, a mounting block is provided below the material baffle plate, the mounting block is slidably connected to the shell, the mounting block is fixedly connected to rack 2, and pneumatic rod 2 is provided below pneumatic rod 1, and both ends of pneumatic rod 2 are fixedly connected to the mounting block and the shell respectively.

[0013] Preferably, a telescopic rod 2 is fixedly provided in the middle part of the lower end of the mounting block, and two telescopic rods are symmetrically provided along the center line of the mounting block. A slider is fixedly provided at the lower end of the telescopic rod 2, and the lower end of the slider is located on one side of the spiral blade. A top rod is provided on the side of the slider close to the cover plate.

[0014] Preferably, an air pipe is provided on one side of the pneumatic rod 1 and the pneumatic rod 2, and two of the air pipes are symmetrically provided along the center line of the shell. The air pipe connects the pneumatic rod 1 and the pneumatic rod 2 located on the same side. A spring is provided inside the pneumatic rod 2, and a bracket is fixedly provided on the outside of the shell, and two of the brackets are symmetrically provided along the center line of the shell, and the bracket is slidably connected to the sliding rod.

[0015] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) Through the arrangement of the feeding assembly and the cleaning assembly, the wear-resistant strips in the feeding assembly can firstly slow down the wear speed of the spiral blades, and on this basis, after the wear of the spiral blades or the tube wall occurs, the wear-resistant strips can automatically fit with the inner wall of the tube sleeve by utilizing the centrifugal force generated during rotation or under the action of the weighted ball, thereby preventing leakage caused by excessive wear, thereby extending the service life of the device, reducing the maintenance frequency and use cost, simplifying the maintenance steps and shortening the maintenance time, and eliminating the need to remove the entire spiral shaft from the sleeve. Moreover, under the action of the cleaning assembly, as the spiral blades rotate, the raw materials remaining on the surface of the blades can be removed, thereby preventing the raw materials from adhering to the spiral blades for a long time, reducing the probability of material blockage between the spiral blades, and providing a guarantee for the normal operation of the device, thereby preventing the weight of the blades from increasing due to the accumulation of raw materials, and further preventing the device from consuming too much energy as the use time increases. In addition, the cleaning assembly can also reduce the waste of raw materials. (2) Through the setting of the feeding component, when the raw materials enter the interior, the baffle plate can prevent a large amount of raw materials from pouring into the pipe sleeve during a single feeding. The gap between the baffle plate and the shell can also be used to control the speed and falling direction of the raw materials entering the pipe sleeve. This can not only reduce the raw materials that are crushed, but also avoid large fluctuations in the discharge quantity caused by completely stopping the feeding. The mounting block can provide power for the baffle plate and also collapse to one side as the spiral blades rotate when a large amount of raw materials enter. This can reduce the risk of the raw materials being crushed by the spiral blades, thereby reducing the raw materials that are too broken and adhere to the spiral blades and the inner wall, and further prevent blockage caused by the accumulation of raw materials on the inner wall of the pipe sleeve. It is worth mentioning that the vibration generated during the resetting of the mounting block can also shake off part of the raw materials on the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the structure of the casing and feeding assembly of the present invention; Figure 3 This is a schematic diagram of the internal structure of the spiral blade of the present invention; Figure 4 It is a schematic diagram of the upper casing structure (without the feeding assembly) of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the casing of the present invention; Figure 6 It is a schematic diagram of a partial cross-sectional structure of the installation groove of the present invention; Figure 7 It is a schematic cross-sectional view of the upper casing and the feeding assembly of the present invention; Figure 8 This is a schematic diagram of the structure of the feeding assembly of the present invention; Fig. 9 This is a schematic cross-sectional view of the structure of the feeding assembly of the present invention; Fig.10 For the present invention Fig. 9 Enlarged structural diagram at A in the middle.

[0017] In the figure: 101, upper sleeve; 102, slide bar; 103, cover plate; 201, lower sleeve; 202, mounting groove; 3, feeding assembly; 301, shaft; 302, spiral blade; 303, telescopic rod 1; 304, counterweight ball; 305, wear-resistant strip; 4, cleaning assembly; 401, conveyor belt; 402, column; 5, feeding assembly; 501, shell; 502, baffle plate; 503, rack 1; 504, pneumatic rod 1; 505, gear; 506, rack 2; 507, mounting block; 508, pneumatic rod 2; 509, telescopic rod 2; 510, slider; 511, air pipe; 512, bracket. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0019] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. "Include" or "comprise" and other similar words used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] like Figures 1 to 10 As shown, the present invention provides a raw material loading and conveying device for plastic product production, including an upper sleeve 101 and a lower sleeve 201 located at the lower end thereof, a loading component 5 is fixedly provided on the upper end of one side of the upper sleeve 101, and the loading component 5 is used to improve the efficiency of the raw materials entering the device and ensure the normal operation of the device, a feeding component 3 is provided between the upper sleeve 101 and the lower sleeve 201, and a mounting groove 202 is fixedly provided in the middle of the lower end of the lower sleeve 201, and a cleaning component 4 is provided in the mounting groove 202, and the cleaning component 4 can remove the residue on the surface of the feeding component 3.

[0021] A slide bar 102 is arranged above the upper sleeve 101, and there are two slide bars 102 in total. The slide bars 102 are symmetrically arranged along the center line of the upper sleeve 101. Both ends of the slide bars 102 are slidably connected to the upper sleeve 101. A cover plate 103 is arranged between the slide bars 102. The cover plate 103 covers the middle part of the upper end of the upper sleeve 101. The upper sleeve 101 and the lower sleeve 201 are fixed by bolts. The lower end of the lower sleeve 201 is located at the end away from the loading assembly 5 and is provided with a unloading port, and the mounting groove 202 is located directly below the cover plate 103.

[0022] The feeding assembly 3 includes a shaft body 301, which is located in the middle of the upper sleeve 101 and the lower sleeve 201. A spiral blade 302 is fixedly provided on the outer surface of the shaft body 301. There are two spiral blades 302 in total. A plurality of telescopic rods 303 are provided between the two spiral blades 302. One end of the telescopic rod 303 is fixedly connected to the shaft body 301, and a counterweight ball 304 is fixedly provided on the other end of the telescopic rod 303.

[0023] The counterweight ball 304 is slidably connected to the spiral blades 302 on both sides. A wear-resistant strip 305 is arranged on the outside of the counterweight ball 304. The wear-resistant strip 305 is arranged between the two spiral blades 302. The outside of the wear-resistant strip 305 contacts the inner walls of the upper sleeve 101 and the lower sleeve 201, and the outside of the spiral blade 302 does not contact the inner walls of the upper sleeve 101 and the lower sleeve 201.

[0024] The cleaning component 4 includes a conveyor belt 401, a rotating rod is arranged inside the conveyor belt 401, the rotating rod inside the conveyor belt 401 is rotatably connected to the mounting groove 202, the end of the conveyor belt 401 is located at the unloading port of the lower sleeve 201, and columns 402 are fixedly arranged on the outer surface of the conveyor belt 401. The columns 402 are grouped in pairs, and each group of columns 402 is located on both sides of the spiral blade 302. The columns 402 are slidably connected to the spiral blade 302, and the columns 402 are made of elastomer.

[0025] The feeding assembly 5 includes a shell 501, which is L-shaped and located on one side of the cover plate 103. The shell 501 is slidably connected to the upper sleeve 101. A baffle plate 502 is slidably provided on one side of the interior of the shell 501. The length of the baffle plate 502 is two-thirds of the length of the shell 501 at the feeding port. A rack 503 is fixedly provided on one side of the baffle plate 502 close to the cover plate 103.

[0026] Pneumatic rod 1 504 is provided on both sides of rack 1 503, one end of pneumatic rod 1 504 is fixedly connected to the material baffle plate 502, and the other end of pneumatic rod 1 504 is fixedly connected to the shell 501. The lower end of rack 1 503 is located on the side away from the material baffle plate 502 and is meshed with gear 505, and the lower end of gear 505 is meshed with rack 2 506, and the length of rack 2 506 is less than the length of rack 1 503.

[0027] A mounting block 507 is provided below the baffle plate 502, the mounting block 507 is slidably connected to the shell 501, and the mounting block 507 is fixedly connected to the rack 2 506. A pneumatic rod 2 508 is provided below the pneumatic rod 1 504, and both ends of the pneumatic rod 2 508 are fixedly connected to the mounting block 507 and the shell 501 respectively.

[0028] A telescopic rod 509 is fixedly provided in the middle of the lower end of the mounting block 507. Two telescopic rods 509 are symmetrically provided along the center line of the mounting block 507. A slider 510 is fixedly provided at the lower end of the telescopic rod 509. The lower end of the slider 510 is located on one side of the spiral blade 302. A push rod is provided on the side of the slider 510 close to the cover plate 103.

[0029] An air pipe 511 is set on one side of the pneumatic rod 1 504 and the pneumatic rod 2 508. Two air pipes 511 are symmetrically arranged along the center line of the shell 501. The air pipe 511 connects the pneumatic rod 1 504 and the pneumatic rod 2 508 located on the same side. A spring is set inside the pneumatic rod 2 508. A bracket 512 is fixedly set on the outside of the shell 501. Two brackets 512 are symmetrically arranged along the center line of the shell 501. The bracket 512 is slidably connected to the sliding rod 102.

[0030] The working principle and use process of the present invention are as follows: after the shaft body 301 of the device is turned on and rotated: when loading, the spiral blade 302 pushes the upper mounting block 507 through the slider 510; after the position of the mounting block 507 changes, the gear 505 is first pushed to rotate through the rack 2 506, and the gear 505 and the rack 1 503 push the material blocking plate 502 forward; at the same time, the air pressure rod 2 508 contracts, and the internal air enters the air pressure rod 1 504 through the air pipe 511, and the material blocking plate 502 is assisted to move forward; When the baffle plate 502 and the mounting block 507 move to the limited position, the slider 510 moves upward under the action of the top column and breaks away from the spiral blade 302. Then, under the action of the spring, the baffle plate 502 is reset, and the slider 510 falls and resets due to gravity. In this way, when the material enters the housing 501, the baffle plate 502 can limit the single feeding quantity, speed and material discharge direction; the mounting block 507 can reduce the amount of raw materials chopped by the spiral blade 302 and the cover plate 103 during a single feeding. At the same time, when loading, the wear-resistant strips 305 are thrown out to the surroundings under the action of centrifugal force until they contact the inner walls of the upper and lower sleeves. The weighted balls 304 in the spiral blades 302 are also pressed against the inner side of the wear-resistant strips 305 due to the centrifugal force, reducing the distance between the wear-resistant strips 305 and the inner wall of the sleeve. If the shaft body 301 rotates slowly and the centrifugal force is insufficient, the weighted balls 304 fall due to gravity, so that the wear-resistant strips 305 near the raw materials are pressed against the inner wall of the sleeve as much as possible. When the wear-resistant strips 305 are worn, they can move radially in the spiral blades 302, and the weighted balls 304 are repeatedly hammered or acted on by centrifugal force. The wear strip 305 is moved downward and outward to automatically fill the gap between the spiral blade 302 and the pipe wall. It is worth mentioning that when replacing the wear strip 305, open the cover plate 103, remove the feeding assembly 5, and take out a part of its head end from the feeding place; then, let the spiral blade 302 rotate slowly, and the wear strip 305 will be gradually taken out with the rotation; when installing a new wear strip 305, install one end of it at the head end or the tail end, and then rotate the spiral blade 302. Under the cooperation of the spiral blade 302 and the upper sleeve 101, the wear strip 305 will gradually enter between the spiral blades 302; In addition, the rotation of the shaft 301 also drives the conveyor belt 401 to rotate through the column 402; the column 402 removes the raw material adhering to the spiral blade 302, so that it is immersed in other raw materials or adheres to the surface of the column 402 and the conveyor belt 401; as the conveyor belt 401 rotates, the new column 402 moves to the inside of the sleeve, and the spiral blade 302 rotates to extrude the column 402, and after it automatically resets due to its own elasticity, a group of columns 402 fits with the surface of the spiral blade 302 and starts working; at this stage, the rotation and extrusion of the spiral blade 302 can squeeze out the raw material remaining on the surface of the column 402 and mix it with the new raw material; the wear-resistant strip 305 is used to shovel off the raw material adhering to the conveyor belt 401.

[0031] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A raw material loading and conveying device for producing plastic products, comprising an upper sleeve (101) and a lower sleeve (201) located at the lower end thereof, characterized in that: A loading assembly (5) is fixedly provided at the upper end of one side of the upper sleeve (101), and the loading assembly (5) is used to improve the efficiency of raw materials entering the device and ensure the normal operation of the device. A feeding assembly (3) is provided between the upper sleeve (101) and the lower sleeve (201), and a mounting groove (202) is fixedly provided at the middle of the lower end of the lower sleeve (201). A cleaning assembly (4) is provided in the mounting groove (202), and the cleaning assembly (4) can remove residues on the surface of the feeding assembly (3).

2. A raw material loading and conveying device for plastic product production according to claim 1, characterized in that: A slide bar (102) is arranged above the upper sleeve (101), and there are two slide bars (102) in total. The slide bars (102) are symmetrically arranged along the center line of the upper sleeve (101), and both ends of the slide bars (102) are slidably connected to the upper sleeve (101). A cover plate (103) is arranged between the slide bars (102), and the cover plate (103) covers the middle part of the upper end of the upper sleeve (101). The upper sleeve (101) and the lower sleeve (201) are fixed by bolts, and a discharge port is opened at the lower end of the lower sleeve (201) which is located away from the feeding assembly (5), and the mounting groove (202) is located directly below the cover plate (103).

3. The raw material loading and conveying device for plastic product production according to claim 1, characterized in that: The feeding assembly (3) comprises a shaft body (301), wherein the shaft body (301) is located in the middle of the upper sleeve (101) and the lower sleeve (201), and a spiral blade (302) is fixedly provided on the outer surface of the shaft body (301), wherein two spiral blades (302) are provided, and a plurality of telescopic rods (303) are provided between the two spiral blades (302), wherein one end of the telescopic rod (303) is fixedly connected to the shaft body (301), and a counterweight ball (304) is fixedly provided on the other end of the telescopic rod (303).

4. A raw material loading and conveying device for plastic product production according to claim 3, characterized in that: The counterweight ball (304) is slidably connected to the spiral blades (302) on both sides. A wear-resistant strip (305) is arranged on the outside of the counterweight ball (304). The wear-resistant strip (305) is arranged between the two spiral blades (302). The outside of the wear-resistant strip (305) contacts the inner walls of the upper casing (101) and the lower casing (201), while the outside of the spiral blade (302) does not contact the inner walls of the upper casing (101) and the lower casing (201).

5. The raw material loading and conveying device for plastic product production according to claim 1, characterized in that: The cleaning component (4) comprises a conveyor belt (401), a rotating rod is arranged inside the conveyor belt (401), the rotating rod inside the conveyor belt (401) is rotatably connected to the mounting groove (202), the end of the conveyor belt (401) is located at the discharge port of the lower sleeve (201), and columns (402) are fixedly arranged on the outer surface of the conveyor belt (401), the columns (402) are arranged in groups of two, and each group of the columns (402) is located on both sides of the spiral blade (302), the columns (402) are slidably connected to the spiral blade (302), and the columns (402) are made of an elastomer.

6. A raw material loading and conveying device for plastic product production according to claim 1, characterized in that: The feeding assembly (5) comprises a shell (501), the shell (501) is L-shaped, the shell (501) is located on one side of the cover plate (103), the shell (501) is slidably connected to the upper sleeve (101), a baffle plate (502) is slidably arranged on one side of the interior of the shell (501), the length of the baffle plate (502) is two-thirds of the length of the shell (501) at the feeding port, and a rack 1 (503) is fixedly arranged on one side of the baffle plate (502) close to the cover plate (103).

7. A raw material loading and conveying device for plastic product production according to claim 6, characterized in that: Pneumatic rods 1 (504) are provided on both sides of the rack 1 (503), one end of the pneumatic rods 1 (504) is fixedly connected to the material baffle plate (502), and the other end of the pneumatic rods 1 (504) is fixedly connected to the shell (501). The lower end of the rack 1 (503) is located on the side away from the material baffle plate (502) and is meshed with a gear (505). The lower end of the gear (505) is meshed with a rack 2 (506), and the length of the rack 2 (506) is less than the length of the rack 1 (503).

8. A raw material loading and conveying device for plastic product production according to claim 7, characterized in that: A mounting block (507) is provided below the baffle plate (502), the mounting block (507) is slidably connected to the housing (501), the mounting block (507) is fixedly connected to the second rack (506), and a second pneumatic rod (508) is provided below the first pneumatic rod (504), the two ends of the second pneumatic rod (508) are respectively fixedly connected to the mounting block (507) and the housing (501).

9. A raw material loading and conveying device for plastic product production according to claim 8, characterized in that: A second telescopic rod (509) is fixedly provided at the middle of the lower end of the mounting block (507), and two of the second telescopic rods (509) are symmetrically provided along the center line of the mounting block (507). A sliding block (510) is fixedly provided at the lower end of the second telescopic rod (509), and the lower end of the sliding block (510) is located on one side of the spiral blade (302). A push rod is provided on the side of the sliding block (510) close to the cover plate (103).

10. A raw material loading and conveying device for plastic product production according to claims 6-9, characterized in that: An air pipe (511) is provided on one side of the pneumatic rod 1 (504) and the pneumatic rod 2 (508), and two of the air pipes (511) are symmetrically provided along the center line of the shell (501). The air pipe (511) connects the pneumatic rod 1 (504) and the pneumatic rod 2 (508) located on the same side. A spring is provided inside the pneumatic rod 2 (508). A bracket (512) is fixedly provided on the outside of the shell (501), and two of the brackets (512) are symmetrically provided along the center line of the shell (501). The brackets (512) are slidably connected to the sliding rod (102).

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