CN118876289A - A recycling device and recycling process for plastic film cutting scraps for flexible packaging - Google Patents

Abstract

The invention discloses a recycling device and recycling process for plastic film cutting scraps for flexible packaging, which relate to the technical field of plastic recycling, and include side frames, which are symmetrically arranged, one end of the side frames is provided with an air suction groove, the air suction groove is connected to the outlet of a film blowing machine, and the side frames are provided with a heating roller at the outlet of the air suction groove, two heating rollers are arranged in parallel, a transmission mechanism is connected between the heating rollers, abutting assembly is provided between the heating roller located on the upper side and the side frames, the heating roller is aligned with a conveying frame, the conveying frame is connected with a strip cutting mechanism, the strip cutting mechanism is connected with a receiving frame, and a cutting mechanism is provided on the receiving frame; the waste is heated and flattened by the heating roller, and is cut into strips in combination with the strip cutting mechanism, and finally is cut to equal length by cutting, so as to carry out the recycling operation of the waste.

Description

A recycling device and recycling process for plastic film cutting scraps for flexible packaging

Technical Field

The invention relates to the technical field of plastic recycling, in particular to a device and a recycling process for recycling scraps of plastic film cut for flexible packaging.

Background Art

Film blowing machine is a common plastic processing equipment used to produce plastic film or plastic bags and other products. It heats and melts plastic particles, blows them into a film through an extruder, and then cools and solidifies them into a film product. Film blowing machines are widely used in food packaging, medical packaging, agricultural covering film and other fields.

When the film blowing machine is started up and debugged, it is inevitable that waste materials with uneven thickness will appear, which is the so-called debugging material. This debugging material can be recycled again. If it is directly discarded, it is easy to cause environmental pollution and waste of resources. Therefore, it is necessary to develop a recycling and crushing equipment for recycling blow molding machine debugging materials.

Summary of the invention

The purpose of the present invention is to provide a device and process for recycling scraps of plastic film cut for flexible packaging, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A device for recovering plastic film cutting scraps for flexible packaging comprises a side frame, which is symmetrically arranged, one end of which is provided with an air suction groove, which is connected to the outlet of a film blowing machine, and the side frame is provided with a heating roller at the outlet of the air suction groove, two heating rollers are arranged in parallel, a transmission mechanism is connected between the heating rollers, an abutment component is arranged between the upper heating roller and the side frame, the gap between the two heating rollers is aligned with the surface of a conveying frame, the conveying frame is connected with a strip cutting mechanism, the strip cutting mechanism is connected with a receiving frame, and a cutting mechanism is arranged on the receiving frame.

The strip cutting mechanism includes a strip cutting roller and a supporting roller arranged in parallel, the supporting roller is connected to a driving motor, the supporting roller is provided with slitting grooves at even intervals, the strip cutting roller is provided with annular cutters at even intervals, the slitting grooves and the annular cutters are correspondingly installed, mounting frames are provided at both ends of the supporting roller, the supporting roller and the mounting frame are rotatably installed, a floating frame is vertically slidably installed in the mounting frame, the strip cutting roller and the floating frame are rotatably installed, a horizontal frame is provided between the floating frames on both sides, a top frame is provided on the top of the mounting frame, an adjusting screw is threadedly connected to the middle part of the top frame, and the end of the adjusting screw is rotatably installed between the horizontal frame.

As a further solution of the present invention: a mounting rod is arranged inside the strip cutting roller, a sleeve ring is arranged at the center of the circular cutter, the sleeve ring and the mounting rod are slidingly fitted together, the circular cutter and the sleeve ring are connected, an axial groove is arranged on the mounting rod, arc grooves are evenly arranged on the edge of the axial groove, a matching ball is arranged inside the sleeve ring, and the matching ball is slidingly fitted with the axial groove and the arc groove.

As a further solution of the present invention: the abutment assembly includes a mounting groove arranged on the side frame, the heating pressure roller located on the upper side passes through the mounting groove and is connected to the connecting block, the connecting block is connected to a plug-in rod, the connecting block is plugged into the side frame through the plug-in rod, a telescopic motor is arranged at the bottom of the side frame, the telescopic motor is connected to the plug-in rod, and a support spring is sleeved on the outer side of the plug-in rod.

As a further scheme of the present invention: the transmission mechanism includes a driving pulley arranged at the end of the lower heating pressure roller and a driven pulley at the end of the upper heating pressure roller, a fixing plate is arranged at the end of the side frame, and an adjustment groove corresponding to the mounting groove is arranged on the fixing plate, and a reversing pulley 1 and a reversing pulley 2 are symmetrically arranged above both sides of the driven pulley, and a transmission belt 1 is arranged between the driving pulley, the driven pulley, and the reversing pulley 1 and the reversing pulley 2, a fixing block is fixedly installed on the fixing plate, a mounting block is connected to the fixing block, the mounting block is plugged into the fixing block through symmetrically arranged plug-in columns, a supporting spring 2 is arranged between the mounting block and the fixing block, and a tensioning pulley is rotatably installed on the mounting block, and the tensioning pulley and the transmission belt 1 are installed in close contact with each other.

As a further solution of the present invention: the surface of the heating roller is smoothly arranged, and the inner side of the heating roller is evenly wound with a heating wire.

As a further solution of the present invention: the cutting mechanism includes vertical frames arranged on both sides of the receiving frame, vertical slide grooves are arranged in the vertical frames, and a cutting knife is slidably installed in the vertical slide grooves, pulley one and pulley three are rotatably installed on the sides of the vertical frames, and the pulley one and pulley three are vertically arranged, and pulley two is arranged at the end of the cutting roller, and a transmission belt two is arranged between the pulley one, the pulley two, and the pulley three, and lifting blocks are evenly spaced on the transmission belt two, and the connection between the lifting block and the transmission belt two is a flexible connection, and the lifting block contacts the edge of the cutting knife during the movement of the transmission belt two and carries the cutting knife to rise synchronously.

As a further solution of the present invention: the second transmission belt is an elastic belt.

A recycling process of the above-mentioned plastic film cutting scrap recycling device for flexible packaging includes the following steps: S1, sucking the waste blown out of the film blowing machine through the suction groove, heating and flattening it in combination with the heating pressure roller, and sending it to the conveyor frame; S2, the flattened waste is carried by the rotating support roller into the gap between the support roller and the slitting roller, and the waste is cut by the evenly arranged circular cutting knives on the slitting roller and the slitting grooves on the support roller; S3, the waste cut into strips is cut into pieces of equal length by the cutting mechanism, so as to be recycled.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The support roller is driven by a driving motor to rotate, and the waste enters between the support roller and the slitting roller, and the circular cutter engages with the slitting groove to complete the slitting of the waste. The slitting roller is height-adjusted by the adjusting screw on the top frame during installation. When the adjusting screw is rotated, the horizontal frame is raised and lowered, so that the circular cutter on the slitting roller engages with the slitting groove on the support roller, ensuring that the waste entering between the slitting roller and the support roller can be reliably slitting.

(2) When the circular cutter 400 is installed in combination with the sleeve ring 402 and the mounting rod 401, the matching ball 4020 in the sleeve ring 402 first enters along the axial groove 403, so that the sleeve ring 402 and the mounting rod 401 are matched, and the spacing between the sleeve rings 402 is adjusted according to the required cutting width, thereby adjusting the arrangement quantity and arrangement spacing of the circular cutters 400. After the sleeve ring 402 reaches the specified adjustment position, it rotates so that the internal matching ball 4020 falls into the arc groove 404, wherein the depth of the arc groove 404 gradually decreases in the direction away from the axial groove 403. The sleeve ring 402 is clamped and locked with the end of the arc groove 404 through the matching ball 4020, thereby flexibly adjusting the number and spacing of the circular cutters and controlling the cutting width.

(3) By setting a fixing plate on the edge of the side frame, and setting a reversing pulley 1 and a reversing pulley 2 in combination with the fixing plate, the transmission belt 1 is installed, so that the upper and lower heating and pressing rollers turn in opposite directions and act on the waste in the middle together, heating and pressing the waste and conveying the waste at the same time. At the same time, the tensioning pulley is installed using the supporting spring 2, so that the tensioning pulley acts on the transmission belt 2, ensuring that the transmission belt 2 is always in a taut state, ensuring reliable transmission of power.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a schematic diagram of the installation of the heating pressure roller and the transmission mechanism in the present invention.

FIG. 3 is a schematic diagram of the adjustable installation of the heating pressure roller in the present invention.

FIG. 4 is a schematic diagram of the structure of the transmission mechanism of the present invention.

FIG. 5 is a schematic diagram of the installation of the strip cutting mechanism in the present invention.

FIG. 6 is a schematic diagram of the installation of the slitting roller and the supporting roller in the present invention.

FIG. 7 is a schematic diagram of the connection structure between the annular cutter and the slitting roller in the present invention.

FIG. 8 is a schematic diagram of the disassembled structure of the circular cutter and the mounting rod in the present invention.

FIG. 9 is a schematic structural diagram of the sleeve ring in the present invention.

FIG. 10 is a schematic structural diagram of the cutting mechanism of the present invention.

In the figure: 1, side frame; 10, suction groove; 11, conveyor frame; 2, heating roller; 20, abutment assembly; 200, mounting groove; 201, connecting block; 202, plug rod; 203, support spring 1; 3, transmission mechanism; 30, fixed plate; 300, adjustment groove; 31, driving pulley; 32, driven pulley; 33, reversing pulley 1; 34, reversing pulley 2; 35, driving belt 1; 36, fixed block; 37, plug column; 38, mounting block; 39, tensioning pulley; 310, support spring 2; 4, cutting Strip roller; 40, mounting frame; 400, circular cutter; 401, mounting rod; 402, sleeve ring; 4020, matching ball; 403, axial groove; 404, arc groove; 41, floating frame; 42, horizontal frame; 43, top frame; 44, adjusting screw; 5, support roller; 500, slitting groove; 6, cutting mechanism; 600, cutting knife; 60, vertical frame; 61, vertical slide; 62, pulley one; 63, pulley two; 64, pulley three; 65, transmission belt two; 66, lifting block; 7, receiving frame.

DETAILED DESCRIPTION

The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

As shown in Figures 1 and 2, a device for recovering plastic film cutting scraps for flexible packaging includes a side frame 1, which is symmetrically arranged. An air suction groove 10 is arranged at one end of the side frame 1, and the air suction groove 10 is connected to the outlet of the film blowing machine. The side frame 1 is provided with a heating roller 2 at the outlet of the air suction groove 10. Two heating rollers 2 are arranged in parallel. A transmission mechanism 3 is connected between the heating rollers 2. A contact component 20 is arranged between the upper heating roller 2 and the side frame 1. The gap between the two heating rollers 2 is aligned with the surface of the conveying frame 11. The conveying frame 11 is connected with a strip cutting mechanism, and the strip cutting mechanism is connected with a receiving frame 7. A cutting mechanism 6 is arranged on the receiving frame 7.

Specifically, the waste material blown out by the film blowing machine may be uneven, resulting in different thicknesses. The waste material is sucked in through the air suction groove 10, and is sent to between the heating and pressing rollers 2 through the guiding effect of the air suction groove 10. After heating and pressing, it is sent to the conveying rack 11, and then sent to the strip cutting mechanism along the conveying rack 11. The waste material is cut into long and thin strips, and then combined with the cutting mechanism 6 to cut the strips into equal-length blocks for recycling processing.

As shown in Figures 5 and 6, the slitting mechanism includes a slitting roller 4 and a supporting roller 5 arranged in parallel, the supporting roller 5 is connected to a driving motor, the supporting roller 5 is evenly spaced with slitting grooves 500, the slitting roller 4 is evenly spaced with annular cutters 400, the slitting grooves 500 and the annular cutters 400 are correspondingly installed, mounting frames 40 are provided at both ends of the supporting roller 5, the supporting roller 5 and the mounting frame 40 are rotatably installed, a floating frame 41 is vertically slidably installed in the mounting frame 40, the slitting roller 4 and the floating frame 41 are rotatably installed, a horizontal frame 42 is provided between the floating frames 41 on both sides, a top frame 43 is provided on the top of the mounting frame 40, an adjusting screw 44 is threadedly connected to the middle part of the top frame 43, and the end of the adjusting screw 44 is rotatably installed between the horizontal frame 42.

Specifically, the support roller 5 is rotatably mounted on the mounting frame 40, and the support roller 5 is driven to rotate by a driving motor, and the waste enters between the support roller 5 and the slitting roller 4, and the annular cutter 400 is engaged with the slitting groove 500 to complete the slitting operation of the waste. The slitting roller 4 is height-adjusted by the adjusting screw 44 on the top frame 43 during installation, and the horizontal frame 42 is driven to rise and fall when the adjusting screw 44 is rotated, so that the annular cutter 400 on the slitting roller 4 is engaged with the slitting groove 500 on the support roller 5, ensuring that the waste entering between the slitting roller 4 and the support roller 5 can be reliably slitting.

Furthermore, as shown in Figures 7, 8 and 9, a mounting rod 401 is provided in the strip cutting roller 4, a sleeve ring 402 is provided at the center of the circular cutter 400, the sleeve ring 402 and the mounting rod 401 are slidingly fitted, the circular cutter 400 is connected to the sleeve ring 402, an axial groove 403 is provided on the mounting rod 401, and arc grooves 404 are evenly provided on the edge of the axial groove 403, and a mating ball 4020 is provided inside the sleeve ring 402, and the mating ball 4020 is slidingly fitted with the axial groove 403 and the arc groove 404.

Specifically, the number of annular cutters 400 on the slitting roller 4 is arranged according to the required slitting width, wherein an opening is provided at the edge of the slitting roller 4, and the annular cutters 400 are slidably installed along the opening and between the slitting roller 4 in combination with the internal sleeve ring 402. In order to be able to flexibly adjust the number of circular cutters 400 and ensure that there is no axial movement between the circular cutter 400 and the mounting rod 401 when cutting the waste into strips, a sleeve ring 402 is provided on the inner ring of the circular cutter 400, and a matching ball 4020 is provided in combination with the sleeve ring 402. When the matching ball 4020 cooperates with the axial groove 403, the circular cutter 400 can slide axially along the mounting rod 401. At this time, the arrangement spacing and arrangement quantity of the circular cutters 400 can be adjusted. After the arrangement is completed, the circular cutter 400 is rotated around the mounting rod 401, and the matching ball 4020 in the sleeve ring 402 falls into the arc groove 404, so that the matching ball 4020 in the sleeve ring 402 cooperates with the end of the arc groove 404 away from the axial groove 403, thereby preventing the matching ball 4020 from falling into the axial groove 403 and causing the circular cutter 400 to move axially, thereby ensuring the spacing control during strip cutting.

Among them, when the circular cutter 400 is installed in conjunction with the sleeve ring 402 and the mounting rod 401, the matching ball 4020 in the sleeve ring 402 first enters along the axial groove 403, so that the sleeve ring 402 and the mounting rod 401 are matched, and the spacing between the sleeve rings 402 is adjusted according to the required cutting width, and then the arrangement quantity and arrangement spacing of the circular cutter 400 are adjusted. After the sleeve ring 402 reaches the specified adjustment position, it rotates so that the internal matching ball 4020 falls into the arc groove 404, wherein the depth of the arc groove 404 gradually decreases in the direction away from the axial groove 403, and the sleeve ring 402 is clamped and locked with the end of the arc groove 404 through the matching ball 4020.

Furthermore, as shown in Figure 3, the abutment assembly 20 includes a mounting groove 200 arranged on the side frame 1, and the heating pressure roller 2 located on the upper side is connected to the connecting block 201 through the mounting groove 200. The connecting block 201 is connected to a plug-in rod 202. The connecting block 201 is plugged into the side frame 1 through the plug-in rod 202. A telescopic motor is arranged at the bottom of the side frame 1, and the telescopic motor is connected to the plug-in rod 202. The outer side of the plug-in rod 202 is sleeved with a support spring 203.

Specifically, the telescopic motor pulls the plug rod 202 downward, thereby driving the heating roller 2 on the upper side to abut against the heating roller 2 on the lower side, thereby clamping and flattening the waste material, which is convenient for subsequent strip cutting operations.

Further, as shown in FIG4 , the transmission mechanism 3 includes a driving pulley 31 arranged at the end of the lower heating roller 2 and a driven pulley 32 at the end of the upper heating roller 2, a fixing plate 30 is arranged at the end of the side frame 1, and an adjustment groove 300 corresponding to the mounting groove 200 is arranged on the fixing plate 30, and a reversing pulley 1 33 and a reversing pulley 2 34 are symmetrically arranged above both sides of the driven pulley 32. A transmission belt 1 35 is arranged between the reversing pulley 1 33 and the reversing pulley 2 34, a fixing block 36 is fixedly mounted on the fixing plate 30, a mounting block 38 is connected to the fixing block 36, the mounting block 38 is plugged into the fixing block 36 through symmetrically arranged plug-in columns 37, a supporting spring 2 310 is arranged between the mounting block 38 and the fixing block 36, a tensioning pulley 39 is rotatably mounted on the mounting block 38, and the tensioning pulley 39 is installed in close contact with the transmission belt 1 35.

Specifically, since the upper heating roller 2 is adjustable, a fixing plate 30 is arranged on the edge of the side frame 1, and a reversing pulley 1 33 and a reversing pulley 2 34 are arranged in combination with the fixing plate 30, and a transmission belt 1 35 is installed, so that the upper and lower heating rollers 2 turn in opposite directions and act on the waste material in the middle together, heating and pressing the waste material while conveying the waste material. At the same time, a tensioning pulley 39 is installed using a supporting spring 2 310, so that the tensioning pulley 39 acts on the transmission belt 2 65, ensuring that the transmission belt 2 65 is always in a taut state, and ensuring reliable transmission of power.

The surface of the heating roller 2 is smooth, and the inner side of the heating roller 2 is evenly wound with a heating wire.

Further, as shown in Figure 10, the cutting mechanism 6 includes a vertical frame 60 arranged on both sides of the receiving frame 7, and a vertical slide groove 61 is arranged in the vertical frame 60, and a cutting knife 600 is slidably installed in the vertical slide groove 61, and a pulley 1 62 and a pulley 3 64 are rotatably installed on the side of the vertical frame 60, and the pulley 1 62 and the pulley 3 64 are vertically arranged, and a pulley 2 63 is arranged at the end of the cutting roller 4, and a transmission belt 2 65 is arranged between the pulley 1 62, the pulley 2 63, and the pulley 3 64, and lifting blocks 66 are evenly spaced on the transmission belt 2 65, and the connection between the lifting block 66 and the transmission belt 2 65 is a flexible connection. The lifting block 66 contacts the edge of the cutting knife 600 during the movement of the transmission belt 2 65 and carries the cutting knife 600 to rise synchronously, and the transmission belt 2 65 is an elastic belt.

Specifically, the strip cutting roller 4 rotates with the rotation of the supporting roller 5, and combined with the setting of pulley one 62, pulley two 63, pulley three 64 and transmission belt two 65, drives the lifting block 66 to rotate. When the lifting block 66 is in the area between pulley one 62 and pulley three 64, the upward movement will drive the cutting knife 600 to be lifted. When the lifting block 66 is separated from the edge of the cutting knife 600, the cutting knife 600 falls under the action of gravity, thereby cutting the strip-shaped waste.

A recycling process of the above-mentioned plastic film cutting scrap recycling device for flexible packaging, comprising the steps of: S1, sucking the waste blown out of the film blowing machine through the suction groove 10, heating and flattening it in combination with the heating roller 2, and sending it to the conveying frame 11;

S2. The flattened waste is carried by the rotating support roller 5 into the gap between the support roller 5 and the slitting roller 4, and the waste is cut by the evenly arranged circular cutters 400 on the slitting roller 4 and the slitting grooves 500 on the support roller 5; S3. The cut waste in strips is cut into pieces of equal length by the cutting mechanism 6 for recycling.

The working principle of the embodiment of the present invention is:

As shown in Figures 1 to 10, the waste blown out of the film blowing machine is sucked in through the suction groove 10, and the waste is sent to the heating and pressing rollers 2 through the guiding effect of the suction groove 10. After heating and pressing, it is sent to the conveying frame 11, and sent to the strip cutting mechanism along the conveying frame 11, and the waste is cut into long and thin strips, and then combined with the cutting mechanism 6 to cut the strips into blocks of equal length, so as to be recycled. The support roller 5 is rotatably installed between the mounting frame 40, and the support roller 5 is driven by the driving motor to rotate, and the waste enters between the support roller 5 and the strip cutting roller 4, and the circular cutter 400 is engaged with the slitting groove 500 to complete the strip cutting operation of the waste. The strip cutting roller 4 is height-adjusted by the adjusting screw 44 on the top frame 43 during installation. When the adjusting screw 44 is rotated, the horizontal frame 42 is driven to rise and fall, so that the circular cutter 400 on the strip cutting roller 4 is engaged with the slitting groove 500 on the support roller 5, ensuring that the waste entering between the strip cutting roller 4 and the support roller 5 can be reliably cut into strips. The number of annular cutters 400 on the slitting roller 4 is arranged according to the required slitting width, wherein an opening is provided at the edge of the slitting roller 4, and the annular cutters 400 are slidably installed along the opening and between the slitting roller 4 in combination with the internal sleeve ring 402. In order to be able to flexibly adjust the number of circular cutters 400 and ensure that there is no axial movement between the circular cutter 400 and the mounting rod 401 when cutting the waste into strips, a sleeve ring 402 is provided on the inner ring of the circular cutter 400, and a matching ball 4020 is provided in combination with the sleeve ring 402. When the matching ball 4020 cooperates with the axial groove 403, the circular cutter 400 can slide axially along the mounting rod 401. At this time, the arrangement spacing and arrangement quantity of the circular cutters 400 can be adjusted. After the arrangement is completed, the circular cutter 400 is rotated around the mounting rod 401, and the matching ball 4020 in the sleeve ring 402 falls into the arc groove 404, so that the matching ball 4020 in the sleeve ring 402 cooperates with the end of the arc groove 404 away from the axial groove 403, thereby preventing the matching ball 4020 from falling into the axial groove 403 and causing the circular cutter 400 to move axially, thereby ensuring the spacing control during strip cutting. When the circular cutter 400 is installed in combination with the sleeve ring 402 and the mounting rod 401, the matching ball 4020 in the sleeve ring 402 first enters along the axial groove 403, so that the sleeve ring 402 and the mounting rod 401 are matched, and the spacing between the sleeve rings 402 is adjusted according to the required strip width, and then the arrangement quantity and spacing of the circular cutter 400 are adjusted. After the sleeve ring 402 reaches the specified adjustment position, it rotates so that the internal matching ball 4020 falls into the arc groove 404, wherein the depth of the arc groove 404 gradually decreases in the direction away from the axial groove 403, and the sleeve ring 402 is clamped and locked with the end of the arc groove 404 through the matching ball 4020. The plug-in rod 202 is pulled downward by the telescopic motor, thereby driving the heating roller 2 on the upper side to abut against the heating roller 2 on the lower side, so as to clamp and flatten the waste material, which is convenient for the subsequent strip cutting operation. Since the upper heating roller 2 is adjustable, a fixing plate 30 is arranged at the edge of the side frame 1, and a reversing pulley 1 33 and a reversing pulley 2 34 are arranged in combination with the fixing plate 30, and a transmission belt 1 35 is installed, so that the upper and lower heating rollers 2 turn in opposite directions and act on the waste material in the middle together, heating and pressing the waste material and conveying the waste material at the same time. At the same time, a tensioning pulley 39 is installed using a supporting spring 2 310, so that the tensioning pulley 39 acts on the transmission belt 2 65, ensuring that the transmission belt 2 65 is always in a taut state, ensuring reliable transmission of power. The strip cutting roller 4 rotates with the rotation of the supporting roller 5, and combined with the setting of pulley 1 62, pulley 2 63, pulley 3 64 and transmission belt 2 65, drives the lifting block 66 to rotate. When the lifting block 66 is in the area between pulley 1 62 and pulley 3 64, the upward movement will drive the cutting knife 600 to be lifted. When the lifting block 66 is separated from the edge of the cutting knife 600, the cutting knife 600 falls under the action of gravity, thereby cutting the strip-shaped waste.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Any reference numeral in a claim shall not be regarded as limiting the claim involved.

In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims (8)

1. The utility model provides a plastic film cutting leftover bits recovery unit for flexible packaging, includes side frame (1), side frame (1) symmetry sets up, the one end of side frame (1) is provided with suction groove (10), suction groove (10) butt joint inflation film manufacturing machine's export, side frame (1) are provided with heating compression roller (2) in the exit of suction groove (10), heating compression roller (2) parallel arrangement has two, a serial communication port, be connected with drive mechanism (3) between heating compression roller (2), be provided with between heating compression roller (2) and side frame (1) of upside and lean on subassembly (20), two gap between heating compression roller (2) is aimed at carriage (11) surface, carriage (11) are connected with slitter constructs, slitter constructs and are connected with receiving frame (7), be provided with shutdown mechanism (6) on receiving frame (7).

The slitting mechanism comprises slitting rollers (4) and supporting rollers (5) which are arranged in parallel, wherein the supporting rollers (5) are connected with driving motors, slitting grooves (500) are uniformly formed in the supporting rollers (5) at intervals, circular cutters (400) are uniformly arranged on the slitting rollers (4) at intervals, mounting frames (40) are correspondingly arranged between the slitting grooves (500) and the circular cutters (400), the two ends of the supporting rollers (5) are rotatably mounted between the supporting rollers (5) and the mounting frames (40), floating frames (41) are vertically and slidably mounted in the mounting frames (40), horizontal frames (42) are rotatably mounted between the slitting rollers (4) and the floating frames (41), tops of the mounting frames (40) are provided with top frames (43), and adjusting screws (44) are connected with middle threads of the top frames (43), and rotatably mounted between the end portions of the adjusting screws (44) and the horizontal frames (42).

2. The plastic film cutting leftover material recycling device for flexible packages according to claim 1, wherein a mounting rod (401) is arranged in the slitting roller (4), a sleeve ring (402) is arranged at the center of the circular ring cutter (400), the sleeve ring (402) and the mounting rod (401) are mounted in a sliding fit mode, the circular ring cutter (400) and the sleeve ring (402) are connected, an axial groove (403) is formed in the mounting rod (401), arc-shaped grooves (404) are uniformly formed in the edges of the axial groove (403), matching balls (4020) are arranged in the sleeve ring (402), and the matching balls (4020) are in sliding fit with the axial groove (403) and the arc-shaped grooves (404).

3. The plastic film cutting leftover material recycling device for flexible packages according to claim 1, wherein the leaning component (20) comprises an installation groove (200) arranged on the side frame (1), the heating press roller (2) arranged on the upper side penetrates through the installation groove (200) to be connected with the connecting block (201), the connecting block (201) is connected with the inserting rod (202), the connecting block (201) is inserted between the inserting rod (202) and the side frame (1), a telescopic motor is arranged at the bottom of the side frame (1), the telescopic motor is connected with the inserting rod (202), and a supporting spring I (203) is sleeved on the outer side of the inserting rod (202).

4. The plastic film cutting scrap recycling device for flexible packaging according to claim 3, wherein the transmission mechanism (3) comprises a driving pulley (31) arranged at the end part of the lower heating press roller (2) and a driven pulley (32) arranged at the end part of the upper heating press roller (2), the end part of the side frame (1) is provided with a fixed plate (30), the fixed plate (30) is provided with an adjusting groove (300) corresponding to the mounting groove (200), the fixed plate (30) is symmetrically provided with a reversing pulley I (33) and a reversing pulley II (34) above two sides of the driven pulley (32), a driving belt I (35) is arranged between the driving pulley (31), the driven pulley (32) and the reversing pulley II (33), the fixed plate (30) is fixedly provided with a fixed block (36), the fixed block (36) is connected with a mounting block (38), the mounting block (38) is arranged between the symmetrically arranged splicing column (37) and the fixed block (36), the fixed block (38) is provided with a spring (39) which is arranged between the mounting block (38), the tensioning belt wheel (39) is mounted against the first drive belt (35).

5. The plastic film cutting leftover material recycling device for flexible packages according to claim 1, wherein the surface of the heating press roller (2) is smooth, and the inner side of the heating press roller (2) is uniformly wound with an electric heating wire.

6. The plastic film cutting leftover material recycling device for flexible packages according to claim 1, wherein the cutting mechanism (6) comprises vertical frames (60) arranged on two sides of the receiving frame (7), vertical sliding grooves (61) are formed in the vertical frames (60), cutting knives (600) are slidably mounted in the vertical sliding grooves (61), a pulley I (62) and a pulley III (64) are rotatably mounted on the side edges of the vertical frames (60), the pulley I (62) and the pulley III (64) are vertically arranged, a pulley II (63) is arranged at the end portion of the slitting roller (4), a transmission belt II (65) is arranged between the pulley I (62), the pulley II (63) and the pulley III (64), lifting blocks (66) are uniformly arranged at intervals on the transmission belt II (65), and the lifting blocks (66) are flexibly connected with the connecting positions of the transmission belt II (65), and are synchronously lifted with the cutting knives (600) after being contacted with the edges of the cutting knives (600) in the moving process of the transmission belt II (65).

7. The plastic film cutting scrap recycling apparatus for flexible package according to claim 6, wherein the second driving belt (65) is an elastic belt.

8. A recycling process of the plastic film cutting scrap recycling apparatus for flexible packaging according to claim 1, comprising the steps of:

s1, sucking the waste blown out by a film blowing machine through a suction groove (10), heating and flattening by combining a heating press roll (2), and conveying the waste to a conveying frame (11);

S2, carrying flattened waste into gaps between the supporting roller (5) and the slitting roller (4) by the rotating supporting roller (5), and slitting the waste through circular cutters (400) uniformly arranged on the slitting roller (4) and slitting grooves (500) on the supporting roller (5);

S3, cutting the waste materials which are cut into strips into fragments with equal length under the action of a cutting mechanism (6), and recycling the fragments.