A stable plastic paperboard processing feeding device and a method of using the same

Abstract

The application relates to the technical field of plastic paperboard processing, in particular to a stable feeding device for plastic paperboard processing and a use method thereof, which comprises a machine box, a feeding assembly, a clamping assembly and a lifting assembly. A cavity is arranged in the machine box, a lifting assembly for lifting materials is arranged in the cavity, a first motor is arranged on the side away from the cavity side wall, each group of the first motor is connected with the lifting threaded rod below, the front and rear ends of the two groups of side beams below are provided with bearing seats for bearing the lifting threaded rods, lifting blocks are arranged at the four corners of the lifting plate, the lifting threaded rods correspondingly penetrate through the lifting blocks and are threadedly connected with the lifting blocks. The stable feeding device for plastic paperboard processing and the use method thereof are used in cooperation with the clamping assembly and the lifting assembly, single centering feeding of materials with corresponding thicknesses is facilitated, and the clamping plate can center circular materials through the assembly of the arc-shaped ring with the clamping blocks.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of plastic paperboard processing, in particular to a stable feeding device for plastic paperboard processing and a use method thereof. BACKGROUND

[0002] As is known, plastic paperboard, namely plastic board, is a board made of plastic, plastic is a synthetic high-molecular compound, and plastic can be freely changed in shape. Plastic is a material synthesized or condensed by monomer raw materials, which is composed of synthetic resin and additives such as fillers, plasticizers, stabilizers, lubricants and pigments, and the main component is synthetic resin.

[0003] The existing plastic paperboard needs to be fed one by one during processing, and the feeding needs to be guaranteed to be centered and stable during the feeding process, and the traditional plastic paperboard feeding device is not convenient for centering feeding, and is also easily affected by external environmental factors during material feeding, so that the transmission is unstable. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies in the prior art, the application provides a stable feeding device for plastic paperboard processing and a use method thereof.

[0006] (II) Technical solutions

[0007] In order to achieve the above-mentioned purpose, the application provides the following technical solutions: a stable feeding device for plastic paperboard processing, comprising a machine box, a feeding assembly, a clamping assembly and a lifting assembly, the machine box is provided with a cavity, the front of the machine box is provided with an output port penetrating the cavity, the cavity is provided with a lifting assembly lifting material;

[0008] The lifting assembly comprises a side beam, a first motor, a lifting screw rod and a lifting plate, the side walls on both ends of the cavity are provided with the side beams, the side beams on the side walls of each group are symmetrically arranged, the front and rear ends of the two groups of side beams located at the upper part are provided with the first motors, the first motors are arranged away from the side walls of the cavity, each group of the first motors is connected with the lifting screw rod below, the front and rear ends of the two groups of side beams located at the lower part are provided with bearing seats bearing the lifting screw rods, and the lifting plate is provided with lifting blocks at four corners, the lifting screw rods correspondingly penetrate the lifting blocks and are threadedly connected with the lifting blocks.

[0009] The casing is further provided with a clamping assembly for centering and clamping the material, the clamping assembly comprises a first reverse thread rod, a clamping plate and a handle, the first reverse thread rod is arranged above the lifting assembly, one end of the first reverse thread rod penetrates through the side wall of the casing and is connected with the handle, the lifting plate is provided with first limiting holes on the left and right sides, the clamping plate is arranged in two groups in a symmetrical manner, and the two groups of clamping plates are penetrated by the two ends of the first reverse thread rod from above and are threadedly connected with the first reverse thread rod, and the clamping plate penetrates through the first limiting hole from below.

[0010] The casing is further provided with the feeding assembly for feeding the material.

[0011] In order to facilitate single feeding of the material, the feeding assembly comprises a first air cylinder, a lifting frame, a second air cylinder, a feeding frame, a suction cup, a second motor, a driving wheel, a driven wheel, a first roller, a first transmission belt, a support table and a second roller, the first air cylinder is arranged above the top wall of the casing and close to the output port, the first air cylinder penetrates through the top wall of the casing from below and is connected with the lifting frame, the lifting frame is provided with the second air cylinder below, the output end of the second air cylinder is connected with the feeding frame, a plurality of groups of suction cups connected with external air suction equipment are arranged below the feeding frame, the suction cups are arranged in a plurality of groups in a uniform manner, the suction cups are used for adsorbing the material, the support table is arranged away from the lower wall of the cavity and away from one side of the cavity, the second roller is arranged away from one side of the cavity, the output end of the second motor located on the outer side wall of the casing penetrates through the casing and is connected with the driving wheel, the first roller is arranged in the cavity, the left and right sides of the first roller are rotationally connected with the side walls of the cavity, and the first roller is further provided with the driven wheel connected with the driving wheel through the first transmission belt.

[0012] In order to further ensure the stability of the clamping assembly in clamping the material, the clamping assembly further comprises a second reverse thread rod, an auxiliary wheel and a second transmission belt, the second reverse thread rod is arranged below the lifting assembly, the lower sides of the two groups of clamping plates are penetrated by the two ends of the second reverse thread rod and are threadedly connected with the second reverse thread rod, the auxiliary wheels are arranged on the first reverse thread rod and the second reverse thread rod, and the two groups of auxiliary wheels are connected through the second transmission belt.

[0013] Preferably, the back side of the casing is provided with a hinged door penetrating the cavity, and a handle is arranged above one side of the hinged door away from the cavity.

[0014] For the convenience of aligning the front and back sides of the material, the application is improved, the second limiting hole is arranged on one side of the hinge door near the center of the lifting plate, the first limiting hole and the second limiting hole are vertically arranged on the same horizontal plane, two groups of symmetrical slide rods are arranged below the top wall of the case, a push plate is arranged in the cavity, the push plate penetrates the second limiting hole below, and a sliding block penetrating the second slide rod is arranged above the push plate.

[0015] For the convenience of clamping the circular material, the application is improved, a plurality of groups of L-shaped grooves are arranged on one side of the cavity near the center of the lifting plate, the upper wall of the L-shaped groove is in the shape of a T with a side opening, the lower wall of the L-shaped groove is fully open, an arc-shaped ring with a clamping block is further arranged on the lifting plate, the arc-shaped ring is arranged on one side near the clamping plate and is provided with a clamping block matched with the upper wall of the L-shaped groove, the arc-shaped ring comprises a fixed half ring and a movable half ring, the fixed half ring is connected with the clamping block, a sliding groove is arranged on one side of the clamping block near the output port, a sliding plate is arranged on the movable half ring and is in sliding connection with the sliding groove, and a positioning assembly is arranged on the sliding plate.

[0016] For the convenience of dislocating the movable half ring from the fixed half ring to ensure the stability of material transportation, the application is improved, a positioning groove is arranged on the upper wall of the sliding groove, the positioning assembly comprises a spring and an arc-shaped block, an assembly groove is arranged on the sliding plate, the positioning assembly is arranged in the assembly groove, one end of the spring is connected with the bottom wall of the assembly groove, the other end of the spring is connected with the arc-shaped block, and the upper side of the arc-shaped block is matched with the positioning groove.

[0017] Further, for the convenience of stably transporting the material, the application is improved, an auxiliary beam is further arranged on the output port, two groups of symmetrical auxiliary rollers are arranged below the auxiliary beam, and the auxiliary rollers are located above the first rollers.

[0018] The application further provides a use method of the stable plastic paperboard processing feeding device, which comprises the following steps:

[0019] Step 1, open the hinge door, place the material on the lifting plate, and synchronously start the four groups of motors to drive the lifting threaded rods to rotate and adjust the height of the top of the material;

[0020] Step 2, rotate the first reverse threaded rod by the handle, connect the auxiliary wheels on the first reverse threaded rod and the second reverse threaded rod by the second transmission belt, and move the two groups of clamping plates towards each other to clamp and center the material;

[0021] Step 3, insert the sliding block on the push plate into the slide rod, and ensure that the front and back of the material are flush by pushing the push plate;

[0022] Step 4, start the feeding assembly to feed the single material.

[0023] (III) Beneficial Effects

[0024] Compared with the prior art, the application provides a stable plastic paperboard processing feeding device and a use method thereof, which has the following beneficial effects:

[0025] The stable plastic paperboard processing feeding device and the use method thereof are convenient for single centering feeding of materials with corresponding thicknesses by cooperation of the clamping assembly and the lifting assembly, and the clamping plate can center round materials by being assembled with the arc-shaped ring with the clamping block.

[0026] In the feeding process, the first air cylinder drives the lifting frame to lift, the second air cylinder drives the feeding frame to move horizontally, the lifting frame descends, the feeding frame is in a retracted position state, the external air suction device is connected with the suction disc, when the suction disc contacts the material, the suction disc sucks the material, the lifting frame rises, the feeding frame is in an extended state, the external air suction device stops suction, the material is sent out, and stable single feeding is realized. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a first perspective view of the structure of the application.

[0028] Figure 2 It is a main view of the structure of the application with one side plate removed.

[0029] Figure 3 It is a first perspective view of the structure of the application.

[0030] Figure 4 It is a second perspective view of the structure of the application.

[0031] Figure 5 It is a partial assembly view of the arc-shaped ring and the clamping plate of the structure of the application.

[0032] Figure 6 It is a partial explosion view of the structure of the application. Figure 5

[0033] ​As shown in the figure: 1, the case; 2, side beam; 3, the first motor; 4, lifting screw rod; 5, lifting plate; 6, the first positive and negative tooth screw rod; 7, clamping plate; 8, handle; 9, the first cylinder; 10, lifting frame; 11, the second cylinder; 12, feeding frame; 13, suction cup; 14, the second motor; 15, driving wheel; 16, driven wheel; 17, first roller; 18, first transmission belt; 19, support table; 20, second roller; 21, the second positive and negative tooth screw rod; 22, auxiliary wheel; 23, second transmission belt; 24, hinged door; 25, handle; 26, push plate; 27, sliding block; 28, slide rod; 29, clamping block; 30, fixed half ring; 31, moving half ring; 32, slide plate; 33, spring; 34, arc block; 35, auxiliary beam; 36, auxiliary roller. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0035] Please refer to Figures 1-6 A stable plastic paperboard processing feeding device, comprising a case 1, a feeding assembly, a clamping assembly and a lifting assembly, the case 1 is provided with a cavity, the case 1 is provided with an output port penetrating the cavity on the upper front face, the cavity is provided with a lifting assembly lifting the material;

[0036] The lifting assembly comprises side beams 2, first motors 3, lifting threaded rods 4 and lifting plates 5, side beams 2 are arranged on the upper and lower ends of the side walls in the cavities, the side beams 2 on each group of cavity side walls are symmetrically arranged, the front and rear ends of the two groups of side beams 2 located at the upper part are each provided with a first motor 3, the first motor 3 is arranged away from the cavity side wall, each group of first motors 3 is connected with a lifting threaded rod 4 below, the front and rear ends of the two groups of side beams 2 located at the lower part are provided with bearing seats for bearing the lifting threaded rods 4, the lifting plates 5 are provided with lifting blocks at the four corners, the corresponding lifting threaded rods 4 pass through the corresponding lifting blocks and are threadedly connected with the corresponding lifting blocks, the cabinet 1 is further provided with a clamping assembly for centering and clamping the material, the clamping assembly comprises first right and left toothed threaded rods 6, clamping plates 7 and handles 8, the first right and left toothed threaded rods 6 are arranged above the lifting assembly, one end of the first right and left toothed threaded rods 6 passes through the side wall of the cabinet 1 and is connected with the handle 8, the lifting plates 5 are provided with first limiting holes on the left and right sides, the clamping plates 7 are arranged in two groups and symmetrically arranged, the two groups of clamping plates 7 are each penetrated by the two ends of the first right and left toothed threaded rods 6 above, the clamping plates 7 pass through the first limiting holes below, the cabinet 1 is provided with a hinged door 24 above the back side and penetrating the cavity, a handle 25 is arranged above the side away from the cavity of the hinged door 24, the rectangular material is placed on the lifting plate 5 by opening the hinged door 24 through the handle 25, the four groups of first motors 3 are synchronously started, the lifting threaded rods 4 are rotated, the lifting blocks at the four corners of the lifting plate 5 are threadedly connected with the lifting threaded rods 4, so that the lifting plate 5 is conveniently and stably lifted, after being moved to a suitable position, the first right and left toothed threaded rods 6 are rotated by the handle 8, the clamping assembly further comprises second right and left toothed threaded rods 21, auxiliary wheels 22 and second transmission belts 23, the second right and left toothed threaded rods 21 are arranged below the lifting assembly, the two groups of clamping plates 7 are each penetrated by the two ends of the second right and left toothed threaded rods 21 below and are threadedly connected with the second right and left toothed threaded rods 21, the auxiliary wheels 22 are arranged on the first right and left toothed threaded rods 6 and the second right and left toothed threaded rods 21, the two groups of auxiliary wheels 22 are connected through the second transmission belts 23, the auxiliary wheel 22 of the first right and left toothed threaded rods 6 drives the auxiliary wheel 22 of the second right and left toothed threaded rods 21 to rotate through the second transmission belt 23, the first right and left toothed threaded rods 6 and the second right and left toothed threaded rods 21 are synchronously rotated, at this time, the clamping plates 7 move leftward and rightward, the rectangular material is centered and clamped, the lifting plate 5 is provided with a second limiting hole near the side close to the hinged door 24, the first limiting hole and the second limiting hole are vertically arranged on the same horizontal plane, the cabinet 1 is provided with two groups of symmetrically arranged sliding rods 28 below the top wall, a push plate 26 is arranged in the cavity, the push plate 26 passes through the second limiting hole below, the push plate 26 is provided with a sliding block 27 penetrated by the second sliding rod 28 above, the sliding block 27 provides a movement limiting action for the push plate 26, the push plate 26 vertically pushes the material, and it is ensured that the materials are flush front and back.

[0037] The chassis 1 is also provided with a feeding assembly for feeding materials, which includes a first cylinder 9, a lifting frame 10, a second cylinder 11, a feeding frame 12, a suction cup 13, a second motor 14, a driving wheel 15, a driven wheel 16, a first roller 17, a first transmission belt 18, a support platform 19 and a second roller 20. The first cylinder 9 is provided above the top wall of the chassis 1 near the output port, and the bottom of the first cylinder 9 passes through the top wall of the chassis 1 and is connected to the lifting frame 10. The second cylinder 11 is provided below the lifting frame 10, and the output end of the second cylinder 11 is connected to the feeding frame 12. Several groups of suction cups 13 connected to the external suction equipment are provided below the feeding frame 12. The suction cups 13 are arranged in several groups and are evenly arranged. The suction cups 13 are used to absorb materials. A support platform 19 is provided on the side of the support platform 19 away from the cavity. The second roller 20 is provided on the side of the support platform 19 away from the cavity. The output end of the second motor 14 located on the outer wall of the chassis 1 passes through the chassis 1 and is connected to the driving wheel 15. A first roller 17 is provided, and the left and right sides of the first roller 17 are rotatably connected to the side walls of the cavity. The first roller 17 is also provided with a driven wheel 16 connected to the driving wheel 15 through a first transmission belt 18. The first cylinder 9 drives the lifting frame 10 to descend, and the second cylinder 11 drives the feeding frame 12 to be in a retracted state. The external suction device is connected to the suction cup 13. After the suction cup 13 contacts the material, it sucks the material, the first cylinder 9 resets, and the second cylinder 11 feeds. The feeding frame 12 drives the material to move toward the output port. An auxiliary beam 35 is also provided on the output port, and two groups of symmetrically arranged auxiliary rollers 36 are provided below the auxiliary beam 35. The auxiliary roller 36 is located above the first roller 17, and the material is between the auxiliary roller 36 and the first roller 17. The second motor 14 drives the driving wheel 15 to rotate, and the driving wheel 15 drives the auxiliary wheel 22 to rotate through the first transmission belt 18, and then the auxiliary wheel 22 drives the material to be transported. After the material is transported to the support platform 19, it is fed through the second roller 20 for subsequent feeding.

[0038] In actual use, the circular material often needs to be fed. In order to meet the above requirements, in the embodiment, a plurality of groups of L-shaped grooves are arranged on one side of the two groups of clamping plates 7 close to the center of the cavity, the upper wall of the L-shaped groove is in the shape of a T with a side opening, the lower wall of the L-shaped groove is fully open, and an arc-shaped ring with a clamping block 29 is further arranged on the lifting plate 5, the arc-shaped ring is arranged on the side close to the clamping plate 7 and is provided with a clamping block 29 matched with the upper wall of the L-shaped groove, the arc-shaped ring comprises a fixed half ring 30 and a movable half ring 31, the fixed half ring 30 is connected with the clamping block 29, the clamping block 29 is provided with a sliding groove on the side close to the output port, the movable half ring 31 is provided with a sliding plate 32 in sliding connection with the sliding groove, the sliding plate 32 is provided with a positioning assembly, the upper wall of the sliding groove is provided with a positioning groove, the positioning assembly comprises a spring 33 and an arc-shaped block 34, the sliding plate 32 is provided with an assembly groove, the positioning assembly is arranged in the assembly groove, one end of the spring 33 is connected with the bottom wall of the assembly groove, the other end of the spring 33 is connected with the arc-shaped block 34, and the arc-shaped block 34 is matched with the positioning groove above. First, select an arc-shaped ring with a suitable height, and pay attention to that, when centering, the lifting plate 5 is first located at the bottom wall of the L-shaped groove corresponding to the height, the clamping block 29 is slid from the lower wall of the L-shaped groove, and the clamping block 29 is inserted into the upper wall of the L-shaped groove along with the lifting plate 5, at this time, the clamping block 29 will not fall out, and the lifting plate 5 cannot be lifted any more. The material can only be fed to the stroke height from the position where the suction cup 13 first contacts the material to the lowermost end of the first cylinder 9, the movable half ring 31 is flush with the fixed half ring 30 close to the center, the material is centered, then the movable half ring 31 and the fixed half ring 30 are dislocated, and then the material can be fed. The width of the arc-shaped ring is greater than the first limiting hole.

[0039] The application further provides a use method of the stable plastic paperboard processing feeding device, which comprises the following steps:

[0040] Step 1, open the hinged door 24, place the material on the lifting plate 5, and synchronously start the four groups of motors to drive the lifting threaded rod 4 to rotate and adjust the height of the top of the material;

[0041] Step 2, rotate the first reverse threaded rod 6 by the handle 8, connect the auxiliary wheels 22 on the first reverse threaded rod 6 and the second reverse threaded rod 21 by the second transmission belt 23, move the two groups of clamping plates 7 towards each other, and clamp and center the material;

[0042] Step 3, insert the sliding block 27 on the push plate 26 into the sliding rod 28, push the push plate 26 to ensure that the material is flush front and back;

[0043] Step 4, start the feeding assembly to feed the single material.

[0044] To explain possible application scenarios, technical principles, specific implementation schemes, and purposes and effects of the present application in detail, the following will be described in detail in combination with specific embodiments and with reference to the drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0045] In this article, the reference to "embodiments" means that the specific features, structures or characteristics described in combination with the embodiments can be included in at least one embodiment of the present application. The term "embodiments" appearing at various places in the specification does not necessarily refer to the same embodiment, and does not particularly limit the independence or association between other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0046] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the art to which the present application belongs; the use of related terms herein is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0047] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A stable plastic paperboard processing feeding device, comprising a machine box (1), a feeding assembly, a clamping assembly and a lifting assembly, characterized in that: The machine case (1) is provided with a cavity, the machine case (1) is provided with an output port penetrating the cavity on the front upper side, the cavity is provided with a lifting assembly lifting material; The lifting assembly includes a side beam (2), a first motor (3), a lifting screw rod (4) and a lifting plate (5), the side beam (2) is arranged on the upper and lower ends of the side wall in the cavity, each group of side beams (2) on the side wall of the cavity is symmetrically arranged, the front and rear ends of the two groups of side beams (2) on the upper side are provided with the first motor (3), the first motor (3) is arranged away from the side wall of the cavity, each group of first motors (3) is connected with the lifting screw rod (4) below, the front and rear ends of the two groups of side beams (2) on the lower side are provided with a supporting seat supporting the lifting screw rod (4), the lifting plate (5) is provided with a lifting block at four corners, the corresponding lifting screw rod (4) penetrates the corresponding lifting block and is threadedly connected with the corresponding lifting block; The machine case (1) is further provided with a feeding assembly for feeding material; The feeding assembly includes a first cylinder (9), a lifting frame (10), a second cylinder (11), a feeding frame (12), a suction cup (13), a second motor (14), a driving wheel (15), a driven wheel (16), a first roller (17), a first transmission belt (18), a supporting table (19) and a second roller (20), the first cylinder (9) is arranged on the top wall of the machine case (1) near the output port, the first cylinder (9) is connected with the lifting frame (10) below penetrating the top wall of the machine case (1), the second cylinder (11) is arranged below the lifting frame (10), the output end of the second cylinder (11) is connected with the feeding frame (12), a plurality of groups of suction cups (13) connected with external air suction equipment are arranged below the feeding frame (12), the suction cups (13) are arranged in several groups and evenly arranged, the suction cups (13) are used for adsorbing material, the output port is provided with the supporting table (19) away from the lower wall of the cavity, the supporting table (19) is provided with a second roller (20) away from the side of the cavity, the output end of the second motor (14) located on the outer side wall of the machine case (1) penetrates the machine case (1) and is connected with the driving wheel (15), the first roller (17) is arranged in the cavity, the first roller (17) is rotatably connected with the side wall of the cavity on the left and right sides, the first roller (17) is further provided with the driven wheel (16) connected with the driving wheel (15) through the first transmission belt (18).

2. A stable plastic paperboard processing feed device according to claim 1, characterized in that: The cabinet (1) is also provided with a clamping assembly for centering and clamping the material, the clamping assembly comprises a first reverse thread rod (6), a clamping plate (7) and a handle (8), the lifting assembly is provided with the first reverse thread rod (6) above, one end of the first reverse thread rod (6) penetrates the side wall of the cabinet (1) and is connected with the handle (8), the lifting plate (5) is provided with a first limiting hole on the left and right sides, the clamping plate (7) is provided in two groups and is symmetrically arranged, the two groups of clamping plates (7) are penetrated by the two ends of the first reverse thread rod (6) above, respectively, and the clamping plate (7) penetrates the first limiting hole below.

3. A stable plastic paperboard processing feed device according to claim 2, characterized in that: The clamping assembly further comprises a second reverse thread rod (21), an auxiliary wheel (22) and a second transmission belt (23), the second reverse thread rod (21) is arranged below the lifting assembly, the lower sides of the two groups of clamping plates (7) are penetrated by the two ends of the second reverse thread rod (21) and are threadedly connected with the second reverse thread rod (21), respectively, the first reverse thread rod (6) and the second reverse thread rod (21) are both penetrated by the auxiliary wheel (22), and the two groups of auxiliary wheels (22) are connected through the second transmission belt (23).

4. A stable plastic paperboard processing feed device according to claim 3, characterized in that: The cabinet is provided with a hinged door penetrating the cavity above the back side, and a handle is arranged above the side away from the cavity of the hinged door.

5. A stable plastic paperboard processing feed device according to claim 4, characterized in that: The lifting plate (5) is provided with a second limiting hole near the side of the hinged door (24), the first limiting hole and the second limiting hole are vertically arranged on the same horizontal plane, the cabinet (1) is provided with two groups of symmetrically arranged slide rods (28) below the top wall, the cavity is provided with a push plate (26), the push plate (26) penetrates the second limiting hole below, and the push plate (26) is provided with a sliding block (27) penetrated by a second slide rod (28) above.

6. A stable plastic paperboard processing feed device according to claim 5, characterized in that: The two groups of clamping plates (7) are provided with a plurality of groups of L-shaped grooves on the side close to the center of the cavity, the upper wall of the L-shaped groove is in the shape of a T with a side opening, and the lower wall of the L-shaped groove is fully open, the lifting plate (5) is further provided with an arc-shaped ring with a clamping block (29), the arc-shaped ring is provided with a clamping block (29) matched with the upper wall of the L-shaped groove on the side close to the clamping plate (7), and the arc-shaped ring comprises a fixed half ring (30) and a movable half ring (31).

7. A stable plastic paperboard processing feed device according to claim 6, characterized in that: The upper wall of the sliding groove is provided with a positioning groove, the positioning assembly comprises a spring (33) and an arc-shaped block (34), the sliding plate (32) is provided with an assembly groove, the positioning assembly is arranged in the assembly groove, one end of the spring (33) is connected with the bottom wall of the assembly groove, the other end of the spring (33) is connected with the arc-shaped block (34), and the upper side of the arc-shaped block (34) is matched with the positioning groove.

8. A stable plastic paperboard processing feed device according to claim 7, characterized in that: The output port is further provided with an auxiliary beam (35), and two groups of symmetrically arranged auxiliary rollers (36) are arranged below the auxiliary beam (35) and above the first roller (17).

9. A method of using a stable plastic paperboard processing feed device comprising a stable plastic paperboard processing feed device according to any one of claims 1-8, characterized in that, The method comprises the following steps: Step 1: open the hinged door (24), place the material on the lifting plate (5), and synchronously start the four groups of motors to drive the lifting threaded rod (4) to rotate and adjust the height of the top of the material; Step 2: rotate the first positive and negative tooth threaded rod (6) through the handle (8), the auxiliary wheels (22) on the first positive and negative tooth threaded rod (6) are connected with the auxiliary wheels (22) on the second positive and negative tooth threaded rod (21) through the second transmission belt (23), so that the two groups of clamping plates (7) move towards each other to clamp and center the material; Step 3: the sliding block (27) on the push plate (26) is inserted on the slide rod (28), and the material is guaranteed to be flush front and back by pushing the push plate (26); Step 4: start the feeding assembly to feed the single material.

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