RPET (Resin Polyethylene Terephthalate) material making device and method thereof

Abstract

The invention relates to the technical field of RPET manufacturing, and discloses an RPET manufacturing device and a method thereof.The RPET manufacturing device comprises a pelletizing assembly and an operation table, a supporting plate is fixed to the top of the operation table, a hobbing cutter is arranged on the supporting plate, and an upper feeding roller and a lower feeding roller are arranged on one side of the hobbing cutter; and the auxiliary assembly is arranged at the top of the operation table and comprises an adjusting piece, the adjusting piece comprises a rotating shaft fixed to one side of the lower feeding roller, a movable block is rotationally connected to the outer side of the rotating shaft, a connecting block is fixed to one side of the movable block, and a threaded column is rotationally connected to the top of the operation table. The grain cutting device has the beneficial effects that in the grain cutting process, when the feeding speed of the feeding roller to a wire material is too high or too low, the feeding speed of the feeding roller can be adaptively reduced or increased through the auxiliary assembly, after adjustment, the surface of the feeding roller can be cleaned, and after the friction force of the surface of the cleaned feeding roller is stable, the normal feeding speed can be recovered.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of RPET material production, in particular to a RPET material production device and method thereof. BACKGROUND

[0002] The RPET material production device is a production line for producing recycled PET particles from recycled PET bottle pieces, waste and the like through a series of processing processes. The equipment composition needs to be configured according to the raw material state and production requirements, and the core equipment can be divided into four categories of pretreatment system, melt extrusion system, pelletizing system and auxiliary system. In the pelletizing system, the line material needs to be cut into granular shape, and the feeding roller on the cutting machine will have material attached to the surface during long-term use. The feeding speed of the feeding roller depends on the friction between the roller surface and the line material. When there is residual material on the surface of the feeding roller, if the accumulated material is viscous, the local friction coefficient of the roller surface will increase, causing the static friction force between the line material and the roller surface to abnormally increase, the local clamping force will be too strong, the line material will be "dragged" to accelerate, and the instantaneous speed will be too fast. If the accumulated material is hard and solidified, the roller surface will become rough and uneven, and even "protrusions" will be formed. At this time, the contact between the line material and the roller surface becomes "point contact" instead of uniform surface contact, and the local friction coefficient drops sharply, resulting in insufficient local feeding power and instantaneous slow speed. When the feeding speed is too fast, the line material feeding amount per unit time exceeds the cutting frequency of the cutter, resulting in too long particle length. When the feeding speed is too slow, the line material feeding amount is insufficient, and the particle length is too short. Finally, the size tolerance of the finished particles exceeds the standard range, a large number of unqualified products are produced, and the material flowability and forming stability in subsequent processing are affected. SUMMARY

[0003] In view of the above and / or existing problems in the RPET material production device, the present application is proposed.

[0004] Therefore, the problem to be solved by the present application is that due to the change of feeding speed, the size tolerance of the finished particles exceeds the standard range.

[0005] To solve the above technical problems, the present application provides the following technical scheme: an RPET material production device, comprising a cutting assembly, the cutting assembly comprising an operation table, a support plate is fixed on the top of the operation table, a hobbing cutter is arranged on the support plate, and an upper feeding roller and a lower feeding roller are arranged on one side of the hobbing cutter; An auxiliary assembly is arranged on the top of the operation table and comprises an adjusting member, the adjusting member comprises a rotating shaft fixed on one side of the lower feeding roller, an active block is rotatably connected to the outside of the rotating shaft, a connecting block is fixed on one side of the active block, a threaded column is rotatably connected to the top of the operation table, the threaded column is internally threadedly connected with the connecting block, an active sleeve is arranged on the outside of the threaded column, a fixed shaft is fixed on the active sleeve, a spiral groove is formed in the threaded column, and the fixed shaft is slidably arranged in the spiral groove.

[0006] As a preferred scheme of the RPET material preparation device, the auxiliary assembly further comprises a trigger, the trigger comprises a support frame fixed to one side of the operation table, a support rod is inserted into the support frame, a force roller is arranged on one side of the support rod, and a first spring is fixed to the bottom of the support rod.

[0007] As a preferred scheme of the RPET material preparation device, a positioning rod is fixed to the top of the operation table, a rotating rod is rotatably connected in the positioning rod, a sliding groove is formed in the end of the rotating rod, a positioning shaft is slidably arranged in the sliding groove, a connecting frame is fixed to the outer side of the positioning shaft, and the connecting frame is fixed to the support rod and the movable sleeve.

[0008] As a preferred scheme of the RPET material preparation device, the auxiliary assembly further comprises a cleaning device, the cleaning device comprises a cleaning block arranged on one side of the support plate, a reciprocating roller is fixed to one side of the cleaning block, a rotating sleeve is rotatably connected to one side of the support plate, and a connecting shaft is fixed in the rotating sleeve.

[0009] As a preferred scheme of the RPET material preparation device, the auxiliary assembly further comprises a transmission device, the transmission device comprises a first gear arranged outside the rotating sleeve, a rotating shaft is fixed to one side of the upper feeding roller, and a second gear is fixed to the outer side of the rotating shaft.

[0010] As a preferred scheme of the RPET material preparation device, a fixing ring is fixed to the outer side of the rotating sleeve, a positioning block is fixed to one side of the fixing ring, a positioning column is fixed to one side of the first gear, and a second spring is fixed between the first gear and the fixing ring.

[0011] As a preferred scheme of the RPET material preparation device, the auxiliary assembly further comprises a pushing device, the pushing device comprises a positioning ring fixed to one side of the first gear, a movable ring is rotatably connected to the outer side of the positioning ring through a bearing, a force block is fixed to one side of the movable ring, an extrusion rod is fixed to one side of the force block, a connecting rod is fixed to the bottom of the extrusion rod, and the connecting rod is fixed to the movable sleeve at the bottom end.

[0012] As a preferred scheme of the RPET material preparation device, a stabilizing block is fixed to one side of the positioning ring, a stabilizing column is fixed to one side of the support plate, and the stabilizing column is movably connected to the stabilizing block.

[0013] As a preferred scheme of the RPET material preparation device, a guide block is fixed to one side of the movable block, a guide column is fixed to the top of the operation table, and the guide column is movably connected to the guide block.

[0014] As a preferred scheme of the RPET material preparation method, wherein: the recycled raw materials are classified and screened, and the screened raw materials are preliminarily disassembled to remove the bottle body label, the bottle cap and the bottle mouth sealing ring; The disassembled raw materials are crushed into fragments, and the metal impurities are removed through a magnetic separation device; The crushed fragments are cleaned and purified, and then dehydrated through a centrifugal dehydrator to reduce the water content; The dehydrated fragments are dried, and the dried fragments are sent into an extruder to be melted and plasticized at high temperature; The filtered melt is extruded into continuous filaments through a die head, the filaments are cooled in a water cooling manner, then sent into a pelletizing assembly to be cut into particles of a specified length, and the pelletizing length is controlled in real time through an auxiliary assembly; The pelletized particles are screened to remove unqualified particles that are too fine or too large, and the qualified particles of different batches are mixed and homogenized, then packaged in moisture-proof bags and stored.

[0015] The present application has the beneficial effect that: during the pelletizing process, when the feeding speed of the feeding roller to the wire material is too fast or too slow, the feeding speed adaptability can be reduced or accelerated through the auxiliary assembly, and after adjustment, the surface of the feeding roller can be cleaned, and after the surface friction of the cleaned feeding roller is stabilized, the normal feeding speed will be restored. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them: Fig. 1 It is the overall structure diagram of the RPET material preparation device.

[0017] Fig. 2 It is the auxiliary assembly structure diagram of the RPET material preparation device.

[0018] Fig. 3 It is the trigger and adjustment piece structure diagram of the RPET material preparation device.

[0019] Fig. 4 It is the cleaning piece and transmission piece structure diagram of the RPET material preparation device.

[0020] Fig. 5 It is the pushing piece structure diagram of the RPET material preparation device.

[0021] Fig. 6 It is the rotating sleeve section structure diagram of the RPET material preparation device. DETAILED DESCRIPTION

[0022] In order to make the above objectives, characteristics and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0023] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application, however, can be practiced in a variety of ways beyond the specific embodiments described herein without departing from the scope of the present application. It can be appreciated by those skilled in the art that the present application can be practiced without such specific details.

[0024] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive with other embodiments. Embodiment 1

[0025] Reference Figs. 1-3 For the first embodiment of the present application, the embodiment provides an RPET material device and a method thereof, the RPET material device and the method thereof include a granulating assembly 100, which includes an operation table 101, the top of the operation table 101 is fixed with support plates 102, the number of the support plates 102 is two, which are respectively fixed on the top of the two sides of the operation table 101, a hob 103 is arranged on the support plate 102, one side of the hob 103 is provided with a driving motor, which can drive the hob 103 to rotate, the other side of the hob 103 is connected with an upper feeding roller 104 through a transmission component, and the hob 103 is provided with the upper feeding roller 104 and a lower feeding roller 105.

[0026] When the hob 103 rotates, the upper feeding roller 104 is driven to rotate, and the upper feeding roller 104 cooperates with the lower feeding roller 105 to convey the wire material to make it contact with the hob 103, so that the cutting of the wire material can be completed through the hob 103, which is the prior art and will not be described in detail, and the working principle can be clearly understood by those skilled in the art.

[0027] The auxiliary assembly 200 is arranged on the top of the operation table 101 and includes adjusting pieces 201, the number of the adjusting pieces 201 is two groups, which are respectively located on the sides of the two support plates 102, the adjusting piece 201 includes rotating shafts 2011 fixed on one side of the lower feeding roller 105, the number of the rotating shafts 2011 is two, which are respectively fixed on the two sides of the lower feeding roller 105, the support plate 102 is provided with a movable groove (not shown in the figure), and the rotating shaft 2011 can move up and down in the movable groove.

[0028] The rotating shaft 2011 is rotationally connected with a movable block 2012 outside, the movable block 2012 is fixed with a connecting block 2013 on one side, a threaded column 2014 is rotationally connected with the top of the operation table 101 through a bearing, the threaded column 2014 is internally threadedly connected with the connecting block 2013, an movable sleeve 2015 is arranged outside the threaded column 2014, the movable sleeve 2015 is fixed with a fixed shaft 2016, a spiral groove 2014-1 is formed in the threaded column 2014, the fixed shaft 2016 is slidably arranged in the spiral groove 2014-1, and only the lower half of the threaded column 2014 is a threaded line.

[0029] When the movable sleeve 2015 moves up and down, the fixed shaft 2016 is driven to slide in the spiral groove 2014-1, the threaded column 2014 is driven to rotate through cooperation of the movable sleeve 2015 and the fixed shaft 2016, the movable block 2012 is driven to move up and down through the connecting block 2013 when the threaded column 2014 rotates, and the rotating shaft 2011 and the lower feeding roller 105 are driven to move up or down through the movable block 2012, so that the distance between the lower feeding roller 105 and the upper feeding roller 104 is increased or reduced.

[0030] When the distance between the lower feeding roller 105 and the upper feeding roller 104 is increased, the pressure between the lower feeding roller 105 and the upper feeding roller 104 is reduced, the friction between the wire material and the feeding roller is reduced at this time, the actual feeding speed is reduced, so that the feeding speed is slowed down and tends to be stable.

[0031] When the distance between the lower feeding roller 105 and the upper feeding roller 104 is reduced, the pressure between the two is increased, the friction between the wire material and the feeding roller is increased, the sliding phenomenon is reduced, the actual feeding speed is increased, and the stability of the feeding speed is realized. Embodiment 2

[0032] Referring to Figs. 3-6 For the second embodiment of the application, the embodiment is based on the previous embodiment.

[0033] Specifically, the auxiliary assembly 200 further comprises a trigger 202, the trigger 202 comprises a support frame 2021 fixed to one side of the operation table 101, a support rod 2022 is inserted into the support frame 2021, the support rod 2022 is movably connected with the support frame 2021, a stress roller 2023 is arranged on one side of the support rod 2022, the stress roller 2023 is rotationally connected with the support rod 2022 in the bearing, and a first spring 2024 is fixed to the bottom of the support rod 2022.

[0034] The force roller 2023 is provided with a positioning groove, and the wire material can move in the positioning groove. The height of the force roller 2023 is higher than that of the upper feeding roller 104. Therefore, when the wire material enters below the upper feeding roller 104, the wire material is supported by the force roller 2023 and is lifted to a certain height, and an arc is formed.

[0035] At this time, the support rod 2022 and the force roller 2023 are supported by the first spring 2024, and the first spring 2024 is in a compressed state. The wire material continuously releases the elastic force. When the wire material moves at a normal speed, the wire material exerts a downward pressure on the force roller 2023. The pressure can offset the continuous release of the elastic force of the first spring 2024, so that the force roller 2023 is in a stable state and cannot move upward or downward.

[0036] When the feeding speed of the wire material is too fast: the wire material is stretched to a greater extent in the conveying path due to being transported quickly, and the tension in the wire material increases. At this time, the wire material is in a tense state. The increased tension acts on the force roller 2023 and generates a downward pressing force on the force roller 2023. Since the force roller 2023 is elastically supported by the first spring 2024, under the action of the downward pressing force, the first spring 2024 is compressed, so that the material stick overcomes the elastic force of the first spring 2024 and moves downward, and the height of the force roller 2023 is reduced.

[0037] When the feeding speed of the wire material is too slow: the stretching degree of the wire material in the conveying path decreases, and the tension in the wire material decreases accordingly. The wire material is in a relatively relaxed state. At this time, the downward pressing force of the wire material on the force roller 2023 is weakened, and the downward force acting on the force roller 2023 is less than the elastic force of the first spring 2024. Under the action of the thrust force of the first spring 2024, the force roller 2023 moves upward, and the height of the force roller 2023 increases.

[0038] Since the force roller 2023 is connected with the support rod 2022, when the force roller 2023 moves upward or downward, the support rod 2022 is also driven to move upward or downward.

[0039] Specifically, the operating table 101 is fixed with a positioning rod 2025 at the top. The positioning rod 2025 is rotationally connected with a rotating rod 2026 through a rotating shaft. The rotating rod 2026 is provided with a sliding groove 2026-1 at both ends. The positioning rod 2025 is provided with a positioning shaft 2027 slidingly arranged in the sliding groove 2026-1. The positioning shaft 2027 is fixed with a connecting frame 2028 on the outer side. The two connecting frames 2028 are fixed with the support rod 2022 and the movable sleeve 2015, respectively. The support frame 2021 is provided with a through slot on one side. The connecting frame 2028 is movably connected with the through slot.

[0040] When the support rod 2022 moves upward or downward, the rotating rod 2026 will be driven to rotate through the cooperation of the connecting frame 2028 and the positioning shaft 2027, and the other end of the rotating rod 2026 can drive the movable sleeve 2015 to move upward or downward through the cooperation of the other set of connecting frame 2028 and positioning shaft 2027.

[0041] Specifically, the auxiliary assembly 200 further comprises a cleaning piece 203, the cleaning piece 203 comprises a cleaning block 2031 located on one side of the support plate 102, the cleaning block 2031 is arc-shaped, one side of the cleaning block 2031 is fixed with bristles, the number of the bristles is two, the bristles are located on one side of the upper feeding roller 104 and the lower feeding roller 105 respectively, one side of the upper cleaning block 2031 is fixed with a reciprocating roller 2032, one side of the lower cleaning block 2031 is fixed with a fixed column, the reciprocating roller 2032 and the fixed column are movably connected in the support plate 102, and the end portions of the reciprocating roller 2032 and the fixed column are fixed with connecting plates, the two cleaning blocks 2031 can be connected, so that the upper cleaning block 2031 can drive the lower cleaning block 2031 to move at the same time when the upper cleaning block 2031 moves, and the movement of the wire material is not affected.

[0042] One side of the support plate 102 is rotatably connected with a rotating sleeve 2033, the rotating sleeve 2033 is fixedly connected with a connecting shaft 2035, the connecting shaft 2035 is engaged with the reciprocating roller 2032, when the rotating sleeve 2033 rotates, the reciprocating roller 2032 can be driven to move through the connecting shaft 2035, so that the reciprocating roller 2032 drives the cleaning block 2031 to move, and the two cleaning blocks 2031 simultaneously clean the upper feeding roller 104 and the lower feeding roller 105.

[0043] Specifically, the auxiliary assembly 200 further comprises a transmission piece 204, the transmission piece 204 comprises a first gear 2041 sleeved outside the rotating sleeve 2033, the first gear 2041 can move axially outside the rotating sleeve 2033, one side of the upper feeding roller 104 is fixed with a rotating shaft 2042, the outer side of the rotating shaft 2042 is fixed with a second gear 2043, the upper feeding roller 104 drives the second gear 2043 to rotate through the rotating shaft 2042.

[0044] When the first gear 2041 moves to the second gear 2043 and is engaged with the second gear 2043, the first gear 2041 will rotate with the second gear 2043 and drive the rotating sleeve 2033 to rotate. Embodiment 3

[0045] Reference Figs. 1-6 This is the third embodiment of the application, which is based on the first two embodiments.

[0046] Specifically, the rotating sleeve 2033 is fixed with a fixed ring 2044 on the outside, one side of the fixed ring 2044 is fixed with a positioning block 2045, one side of the first gear 2041 is fixed with a positioning column 2046, the positioning column 2046 is movably connected with the positioning block 2045, and the first gear 2041 is connected with the rotating sleeve 2033 through cooperation of the three, so that the first gear 2041 can move axially outside the rotating sleeve 2033 and can drive the rotating sleeve 2033 to rotate.

[0047] The second spring 2047 is fixed between the first gear 2041 and the fixed ring 2044, and the second spring 2047 is used to exert a pushing force on the first gear 2041, so that the first gear 2041 will be separated from the second gear 2043 without external pushing force or losing the pushing force.

[0048] The elastic force of the first spring 2024 is greater than that of the second spring 2047, so that when the supporting rod 2022 moves upward under the elastic force of the first spring 2024, the first gear 2041 can move against the elastic force of the second spring 2047.

[0049] Specifically, the auxiliary assembly 200 further comprises a pushing member 205, the pushing member 205 comprises a positioning ring 2051 fixed on one side of the first gear 2041, the positioning ring 2051 is rotatably connected with a movable ring 2052 on the outside through a bearing, one side of the movable ring 2052 is fixed with a stress block 2053, the top and bottom of one side of the stress block 2053 are inclined, one side of the stress block 2053 is fixed with an extrusion rod 2054, the number of the extrusion rod 2054 is two, which are located above and below the stress block 2053 respectively, the two extrusion rods 2054 are connected and fixed through a U-shaped connecting frame, the extrusion rod 2054 is fixed with a connecting rod 2055 at the bottom, the connecting rod 2055 is fixed with the movable sleeve 2015 at the bottom end, one side of the supporting plate 102 is fixed with a stabilizing frame, and the connecting rod 2055 is movably connected with the stabilizing frame.

[0050] When the movable sleeve 2015 moves upward or downward, the extrusion rod 2054 will extrude the inclined surface of the stress block 2053 through the connecting rod 2055, and push the stress block 2053 and the movable ring 2052 to move, so that the first gear 2041 can be driven to move through the movable ring 2052.

[0051] Specifically, one side of the positioning ring 2051 is fixed with a stabilizing block 2056, one side of the supporting plate 102 is fixed with a stabilizing column 2057, the other end of the stabilizing column 2057 is in contact with the first gear 2041, and the stabilizing column 2057 is not fixed with the first gear 2041, the stabilizing column 2057 is movably connected with the stabilizing block 2056, and the two are used to limit the positioning ring 2051 to avoid that the positioning ring 2051 rotates with the first gear 2041.

[0052] Specifically, the guide block 2017 is fixed on one side of the movable block 2012, and the guide column 2018 is fixed on the top of the operation table 101 and movably connected with the guide block 2017, and the two are matched to position the movable block 2012 and avoid the movable block 2012 from deviating when moving.

[0053] Specifically, the recovered raw materials are classified and screened, and the screened raw materials are preliminarily disassembled to remove bottle body labels, bottle caps and bottle mouth sealing rings; The disassembled raw materials are crushed into fragments, and the metal impurities are removed through the magnetic separation device; The crushed fragments are cleaned and purified, and then dehydrated by the centrifugal dehydrator to reduce the water content; The dehydrated fragments are dried, and the dried fragments are sent into the extruder to be melted and plasticized at high temperature; The filtered melt is extruded into continuous filaments through the die head, the filaments are cooled by water cooling, then sent into the pelletizing assembly 100 to be cut into particles of a specified length, and the pelletizing length is controlled in real time by the auxiliary assembly 200; The cut particles are screened to remove unqualified particles that are too fine or too large, and the qualified particles of different batches are mixed and homogenized, and then packaged in moisture-proof bags for storage.

[0054] In use, the cooled thread material is sent from the top of the stress roller 2023 and into the lower part of the upper feeding roller 104, and then the thread material is sent into the hob 103 through the upper feeding roller 104, and the thread material is cut by the hob 103.

[0055] When the thread material feeding speed is too fast, the degree of stretching of the thread material on the conveying path increases, resulting in an increase in the internal tension of the thread material, and the thread material is in a tense state. The increased tension acts on the stress roller 2023 to generate a downward pressing force on the stress roller 2023, so that the stress roller 2023 overcomes the elastic force of the first spring 2024 and drives the support rod 2022 to move downward.

[0056] When the support rod 2022 moves downward, the rotating rod 2026 is driven to rotate through the cooperation of the connecting frame 2028 and the positioning shaft 2027, and the other end of the rotating rod 2026 is driven to move upward through the cooperation of the other set of connecting frame 2028 and positioning shaft 2027. At this time, the movable sleeve 2015 can drive the fixed shaft 2016 to slide in the spiral groove 2014-1, drive the threaded column 2014 to rotate through the cooperation of the two, and drive the movable block 2012 to move downward through the connecting block 2013 when the threaded column 2014 rotates. The rotating shaft 2011 and the lower feeding roller 105 are driven to move downward by the movable block 2012, so that the distance between the lower feeding roller 105 and the upper feeding roller 104 increases.

[0057] When the distance between the lower feeding roller 105 and the upper feeding roller 104 increases, the pressure between the two rollers decreases, the friction between the wire material and the feeding roller decreases, the wire material slightly slips on the feeding roller, the actual feeding speed decreases, and the feeding speed tends to be stable.

[0058] When the wire material feeding speed is too slow, the degree of stretching of the wire material on the conveying path decreases, the internal tension of the wire material decreases, and the wire material appears to be relatively relaxed. At this time, the downward pressing force of the wire material on the force receiving roller 2023 decreases, the downward force on the force receiving roller 2023 is less than the elastic force of the first spring 2024, and the force receiving roller 2023 drives the support rod 2022 to move upward under the pushing force of the first spring 2024.

[0059] When the support rod 2022 moves upward, the movable sleeve 2015 rotates and moves downward, the movable sleeve 2015 drives the fixed shaft 2016 to slide in the spiral groove 2014-1, the threaded column 2014 rotates through the cooperation of the two, the movable block 2012 moves upward through the connection block 2013 when the threaded column 2014 rotates, and the rotating shaft 2011 and the lower feeding roller 105 move upward through the movable block 2012, so that the distance between the lower feeding roller 105 and the upper feeding roller 104 decreases.

[0060] When the distance between the lower feeding roller 105 and the upper feeding roller 104 decreases, the pressure between the two rollers increases, the friction between the wire material and the feeding roller increases, the slipping phenomenon decreases, the actual feeding speed increases, and the feeding speed is stable. Therefore, when the wire material feeding speed changes, the feeding speed can be automatically adjusted to avoid the situation that the finished product particle size is unqualified due to the feeding speed being too fast or too slow.

[0061] When the movable sleeve 2015 moves upward or downward, the extrusion rod 2054 extrudes the inclined surface of the force receiving block 2053 through the connecting rod 2055, and drives the force receiving block 2053 and the movable ring 2052 to move, so that the first gear 2041 can be driven to move by the movable ring 2052. When the first gear 2041 moves to the second gear 2043 and meshes with the second gear 2043, the first gear 2041 rotates with the second gear 2043 and drives the rotating sleeve 2033 to rotate.

[0062] When the rotating sleeve 2033 rotates, the reciprocating roller 2032 can be driven to move through the connecting shaft 2035, and then the reciprocating roller 2032 can drive the cleaning block 2031 to move, and the two cleaning blocks 2031 can clean the upper feeding roller 104 and the lower feeding roller 105 at the same time. When the surfaces of the upper feeding roller 104 and the lower feeding roller 105 are cleaned and the factors causing abnormal feeding speed are eliminated, the feeding speed of the upper feeding roller 104 and the lower feeding roller 105 to the wire material will be restored, and the pressure applied to the stress roller 2023 will be restored to the initial state. At this time, the stress roller 2023 will move to the initial height, the extrusion rod 2054 will be separated from the stress block 2053, and the first gear 2041 will be separated from the second gear 2043 under the elastic force of the second spring 2047.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. An RPET (Regenerative Petri Emulsification) material preparation device, characterized in that: include, The pelletizing assembly (100) includes an operating table (101), a support plate (102) is fixed on the top of the operating table (101), a roller cutter (103) is provided on the support plate (102), and an upper feeding roller (104) and a lower feeding roller (105) are provided on one side of the roller cutter (103). An auxiliary component (200) is disposed on the top of the operating table (101) and includes an adjusting component (201). The adjusting component (201) includes a rotating shaft (2011) fixed to one side of the lower feed roller (105). A movable block (2012) is rotatably connected to the outside of the rotating shaft (2011). A connecting block (2013) is fixed to one side of the movable block (2012). A threaded column (2014) is rotatably connected to the top of the operating table (101). The threaded column (2014) is internally threaded to the connecting block (2013). A movable sleeve (2015) is sleeved on the outside of the threaded column (2014). A fixed shaft (2016) is fixed to the movable sleeve (2015). A spiral groove (2014-1) is opened on the threaded column (2014). The fixed shaft (2016) slides in the spiral groove (2014-1).

2. The RPET material forming apparatus as described in claim 1, characterized in that: The auxiliary component (200) also includes a trigger (202), which includes a support frame (2021) fixed to one side of the operating table (101), a support rod (2022) inserted into the support frame (2021), a force roller (2023) provided on one side of the support rod (2022), and a first spring (2024) fixed at the bottom of the support rod (2022).

3. The RPET material forming apparatus as described in claim 2, characterized in that: A positioning rod (2025) is fixed on the top of the operating table (101). A rotating rod (2026) is rotatably connected inside the positioning rod (2025). A sliding groove (2026-1) is provided at the end of the rotating rod (2026). A positioning shaft (2027) slides inside the sliding groove (2026-1). A connecting frame (2028) is fixed on the outside of the positioning shaft (2027). The two connecting frames (2028) are respectively fixed to the support rod (2022) and the movable sleeve (2015).

4. The RPET material forming apparatus as described in claim 2 or 3, characterized in that: The auxiliary component (200) also includes a cleaning component (203), which includes a cleaning block (2031) located on one side of the support plate (102), a reciprocating roller (2032) fixed on one side of the cleaning block (2031), and a rotating sleeve (2033) rotatably connected to one side of the support plate (102), and a connecting shaft (2035) fixed inside the rotating sleeve (2033).

5. The RPET material forming apparatus as described in claim 4, characterized in that: The auxiliary component (200) also includes a transmission component (204), which includes a first gear (2041) sleeved on the outside of the rotating sleeve (2033), a rotating shaft (2042) fixed on one side of the upper feeding roller (104), and a second gear (2043) fixed on the outside of the rotating shaft (2042).

6. The RPET material forming apparatus as described in claim 5, characterized in that: A fixing ring (2044) is fixed to the outside of the rotating sleeve (2033), a positioning block (2045) is fixed to one side of the fixing ring (2044), a positioning post (2046) is fixed to one side of the first gear (2041), and a second spring (2047) is fixed between the first gear (2041) and the fixing ring (2044).

7. The RPET material forming apparatus as described in claim 5 or 6, characterized in that: The auxiliary component (200) further includes a pusher (205), which includes a positioning ring (2051) fixed to one side of the first gear (2041). A movable ring (2052) is rotatably connected to the outside of the positioning ring (2051) via a bearing. A force-bearing block (2053) is fixed to one side of the movable ring (2052), and a pressing rod (2054) is fixed to one side of the force-bearing block (2053). A connecting rod (2055) is fixed to the bottom of the pressing rod (2054), and the bottom end of the connecting rod (2055) is fixed to the movable sleeve (2015).

8. The RPET feedstock preparation apparatus as described in claim 7, characterized in that: A stabilizing block (2056) is fixed on one side of the positioning ring (2051), and a stabilizing column (2057) is fixed on one side of the support plate (102). The stabilizing column (2057) is movably connected to the stabilizing block (2056).

9. The RPET material forming apparatus as described in claim 8, characterized in that: A guide block (2017) is fixed on one side of the movable block (2012), and a guide column (2018) is fixed on the top of the operating table (101). The guide column (2018) is movably connected to the guide block (2017).

10. A method for preparing RPET material, characterized in that: The material-making apparatus includes any one of claims 1-9, and the material-making method includes, The recycled raw materials are sorted and screened, and the screened raw materials are initially disassembled to remove bottle labels, bottle caps and bottle mouth sealing rings. The disassembled raw materials are crushed into fragments and then metal impurities are removed by a magnetic separator. The broken fragments are cleaned and purified, and then dehydrated using a centrifugal dehydrator to reduce the moisture content. The dehydrated fragments are dried and then fed into an extruder to be melted and plasticized at high temperature. The filtered melt is extruded into continuous filaments through a die, cooled by water cooling, and then fed into a pelletizing assembly (100) to be cut into pellets of a specified length. The pellet length is controlled in real time by an auxiliary assembly (200). The pellets are sieved to remove unqualified particles that are too fine or too large, and qualified particles from different batches are mixed and homogenized before being packaged in moisture-proof bags and stored.

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