A method for forming an environmentally friendly bottom material packaging stretch film

Abstract

The invention relates to an environment-friendly base material packaging stretch film forming method, and to the technical field of stretch film forming processing; it relates to a raw material processing box and a filter, the filter comprising a filter pad for filtering odor generated after raw material particles are steam-cleaned, and a mounting bracket for mounting the filter pad; the invention can solve the following problems existing in the prior art: firstly, the prior art has a poor odor adsorption effect, and can only adsorb the odor emitted from the surface of plastic particles, and the plastic particles need to be processed when they are prepared into different products, and at this time the particles will also emit a large amount of odor, resulting in the final product using the plastic particles as raw materials emitting an odor that is difficult to completely volatilize when used; secondly, when the prior art filters the odor through an activated carbon filter plate, not only is the replacement of the activated carbon filter plate more complicated, but the filtering efficiency of the activated carbon filter plate is also poor.

Description

Technical Field

[0001] The invention relates to the technical field of stretch film forming processing, and in particular to an environmentally friendly base material packaging stretch film forming method. Background Art

[0002] Stretch film, also known as wrapping film, is a packaging material with many excellent properties. Its molding principle is generally to use extrusion to make thick sheets, and then biaxially stretch to make stretch film materials.

[0003] However, there are some more important steps before the stretch film is made into thick sheets by extrusion, that is, filtering the raw materials of the stretch film to ensure that the final stretch film has high transparency and excellent performance. Among them, the particle separator plays an indispensable role.

[0004] The particle separator can separate foreign particles during the stretch film preparation process: During the stretch film preparation process, there may be some foreign particles in the raw materials, such as particles, fibers, etc. The particle separator can separate these foreign particles through screens, filters, etc. to ensure the purity and quality of the film.

[0005] In the prior art, a Chinese patent with publication number CN216062432U discloses a deodorization device for plastic particle production, including a filter box, an air collecting pump is arranged inside the filter box, first delivery pipes are arranged at both ends of the air collecting pump, particle filter plates are arranged outside the first delivery pipes, regulating valves are arranged at the other end of the first delivery pipes, a second delivery pipe is arranged at the top of the air collecting pump, the second delivery pipe is arranged inside a heating kettle, an absorption cylinder is arranged at the top of the heating kettle, an absorption pump is arranged inside the absorption cylinder, an activated carbon filter plate is arranged at one end of the absorption pump, a nano absorption plate is arranged at the other end of the activated carbon filter plate, and a detachable filter plate is arranged at the other end of the nano absorption plate. When in use, the activated carbon filter plate can be used to adsorb odor molecules in the remaining gas, so that the remaining gas can be converted into gas that can be safely discharged. In this way, the device can have the advantages of high utilization rate, safety and environmental protection.

[0006] However, the above device still has some shortcomings in actual use:

[0007] 1. In the above-mentioned prior art, the activated carbon filter plate is used to adsorb the odor molecules in the residual gas; however, the activated carbon filter plate provided in the above-mentioned prior art has a poor effect on the adsorption of odors, and can only adsorb the odor emitted from the surface of the plastic particles, while the odor inside the plastic particles is emitted slowly. Therefore, when the plastic particles are prepared into different products, they need to be processed. At this time, the particles will still emit a large amount of odor, resulting in the final product using the plastic particles as raw materials emitting an odor that is difficult to completely evaporate when used.

[0008] 2. Furthermore, when the plastic particles are passed through the activated carbon filter plate to absorb and filter the odor, the activated carbon filter plate is simply set vertically, which not only makes the replacement of the activated carbon filter plate more complicated, but also has poor filtering efficiency.

[0009] Therefore, based on the above-stated viewpoints, there is still room for improvement in the existing filtering devices. Summary of the invention

[0010] In order to solve the above problems, the present invention provides an environmentally friendly base material packaging stretch film forming method.

[0011] An environmentally friendly base material packaging stretch film forming method uses an environmentally friendly base material packaging stretch film forming device, including a raw material processing box and a filter arranged on the raw material processing box; the environmentally friendly base material packaging stretch film forming method comprises the following steps:

[0012] S1. Raw material transportation: firstly, the raw materials produced for preparing the base material packaging stretch film are placed in the raw material processing box, and then the raw material particles are transported through the raw material processing box and enter the processing area in the raw material processing box;

[0013] S2. Steam flushing: After the raw material particles enter the raw material processing box, steam is then sprayed from bottom to top, so that the steam continuously impacts the raw material particles inside the raw material processing box. During the impact of the steam, the raw material particles continuously move and collide, so that impurities on the surface of the raw material particles fall off. The impurities that fall off are collected by the filter arranged on the raw material processing box under the impact of the steam;

[0014] S3. Steam deodorization: When the steam impacts the raw material particles, the temperature of the steam also sterilizes and disinfects the surface of the raw material particles. After the raw material particles come into contact with the steam, the temperature of the raw material particles continues to rise, so that the odor of the raw material particles is quickly dissipated, and the odor is mixed with the steam after contacting, and then filtered through the filter;

[0015] S4, Steam circulation: When steam continuously flushes the raw material particles, liquid is consumed, and the liquid is contaminated during the flushing process. Therefore, after being filtered through the filter, the steam is recondensed into liquid for recycling;

[0016] S5, raw material processing: after the raw material particles are rinsed and odor filtered, they are promptly transported to the existing extruder, where the raw material particles are heated and melted into a melt;

[0017] S6, raw material extrusion: the melt is extruded into a film through an extruder to form a continuous film;

[0018] S7, film cooling: the film is rapidly cooled by existing cooling equipment to make it solidify quickly;

[0019] S8, film stretching: After the film is solidified, the solidified and cooled film enters the existing stretching equipment to stretch the film;

[0020] S9, product forming: After the film is stretched, it is cut and rolled to finally be made into a base material packaging stretch film.

[0021] Preferably, the raw material processing box is provided with an inner cavity and an inlet and outlet of raw material particles communicated with the inner cavity; and a filter cavity for placing a filter is integrally provided on the inner cavity of the raw material processing box, the filter comprising a filter pad for filtering odor generated after steam cleaning of the raw material particles and a mounting bracket for mounting the filter pad, the mounting bracket being rotatably disposed in the filter cavity of the raw material processing box;

[0022] A steam generator for cleaning and filtering raw material particles is arranged in the raw material processing box.

[0023] Preferably, the trajectory of the steam in the steam generator is from bottom to top and is sprayed into the filter cavity along the raw material processing box. After the steam entering the filter cavity is filtered for odor, it re-enters the steam generator to filter the raw material particles.

[0024] Preferably, a movable conveyor steel belt is arranged inside the raw material processing box along its length direction, and a plurality of groups of conveyor rollers for driving the conveyor steel belt to move are arranged on the inner wall of the raw material processing box. A driving motor is connected to the conveyor roller on one side, and the driving motor is arranged on the outer wall of the raw material processing box through a motor seat.

[0025] A limiting roller for controlling the moving track of the conveyor belt is arranged at one end of the conveyor belt close to the middle of the raw material processing box, so that the conveyor belt on one side has a wavy structure, and the limiting roller is rotatably arranged on the inner wall of the raw material processing box.

[0026] Preferably, the surface of the conveyor steel belt is provided with a plurality of filter holes for steam to pass through, and the steam passes through the filter holes from bottom to top to flush the raw material particles, and the impurities flushed down pass through the filter holes for impurity separation, and vertical baffles are symmetrically arranged on both sides of the conveyor steel belt, and the baffles are connected to the inner wall of the raw material processing box and block the raw material particles during the flushing process.

[0027] Preferably, a plurality of triangular blocks are provided at the moving track of the conveyor steel belt to force the raw material particles to collide during the conveying process, and the triangular blocks are installed in the raw material processing box.

[0028] Preferably, a processing part is also provided at the upper end of the conveyor steel belt, and the processing part includes a processing wheel, a processing belt, a linkage belt, a central shaft and a reversing gear; the processing wheels rotate symmetrically in the raw material processing box, and the two processing wheels are distributed at an angle, the processing belt is sleeved on the two processing wheels, and a wiping brush for wiping the raw material particles is provided on the processing belt.

[0029] The central shaft rotates on the inner wall of the raw material processing box, and the reversing gears are respectively installed on the central shaft and the conveying roller on one side, and the two reversing gears are meshed with each other, and the linkage belt is sleeved between the central shaft and the processing wheel.

[0030] Preferably, the mounting bracket includes a transverse plate and rubber sealing blocks fixedly connected at both ends of the transverse plate, the transverse plate rotates on the raw material processing box, the rubber sealing blocks are integrated on both sides of the length direction of the transverse plate, and the opposite sides of the rubber sealing blocks are provided with strip grooves for sliding installation of the filter gasket.

[0031] Preferably, a replacement window for replacing the filter gasket is provided on the raw material processing box, and a sealing door panel that can be opened and closed is provided at the replacement window.

[0032] Preferably, a collecting pipe for collecting liquid condensed from steam is integrally connected to the filter cavity of the raw material processing box, an inclined condensation plate is provided on the top of the collecting pipe, and a condensation pipe for extracting filtered condensed water from the steam generator is provided in the collecting pipe.

[0033] In summary, the present application includes at least one of the following beneficial technical effects:

[0034] 1. The present invention, through the cooperation of the steam generator and the conveyor steel belt, can not only ensure that the raw material particles for preparing the stretched film can be automatically filtered and cleaned in batches, but also can filter the raw material particles multiple times through steam to eliminate impurities on the raw material particles and the odor of the raw material particles, thereby greatly improving the safety and environmental performance of the raw material particles.

[0035] 2. The steam in the present invention can flush the raw material particles, so that the harmful substances on the surface of the raw material particles can be efficiently cleaned. At the same time, the steam can heat the raw material particles, so that the efficiency of odor emission of the raw material particles can be improved at a suitable temperature, ensuring that the substances inside the raw material particles that are difficult to emit are completely emitted in the shortest time, thereby improving the performance and safety of the raw material particles.

[0036] 3. The filter in the present invention can filter the waste gas mixed in the steam and the impurities in the steam, so as to realize the recycling and reuse of the steam and reduce the cost consumption.

[0037] Fourth, the filter gasket in the present invention can be quickly replaced with the cooperation of the rubber sealing block and the cross plate, ensuring the replacement efficiency and convenience of the filter gasket. Secondly, the filter gasket can be adjusted in position to ensure the effective improvement of the filtering effect of the filter gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0039] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0040] Figure 2 It is a schematic diagram of the structure between the filter and the conveyor belt of the present invention.

[0041] Figure 3 It is a schematic diagram of the structure between the processing part and the conveyor steel belt of the present invention.

[0042] Figure 4 It is a schematic diagram of the structure among the conveying steel belt, conveying roller, driving motor, limiting roller and filtering screen hole of the present invention.

[0043] Figure 5 It is a schematic diagram of the structure between the processing unit and the triangular block of the present invention.

[0044] Figure 6 It is a schematic diagram of the structure between the filter gasket and the mounting bracket of the present invention.

[0045] Figure 7 It is a schematic diagram of the structure between the adjustment part and the filter gasket of the present invention from a first perspective.

[0046] Figure 8 It is a schematic diagram of the structure between the adjustment part and the filter gasket of the present invention from a second viewing angle.

[0047] Fig. 9 It is an exploded view of the structure between the filter gasket and the mounting bracket of the present invention.

[0048] Fig.10 It is a schematic diagram of the structure between the replacement window and the sealing door panel of the present invention.

[0049] Fig.11 It is a schematic diagram of the structure among the collecting pipe, the condensing plate and the condensing pipe of the present invention.

[0050] Fig.12 It is a schematic diagram of the structure of the filter gaskets in the present invention with two different position distributions.

[0051] Fig.13 It is a plan view schematically showing two different position distributions of the filter gasket in the present invention.

[0052] Fig.14It is a flow chart of the method for forming the environmentally friendly base material packaging stretch film in the present invention.

[0053] In the figure, A, raw material particles; 1, raw material processing box; 10, inner cavity; 2, filter; 20, filter gasket; 21, mounting bracket; 22, filter cavity; 3, steam generator; 40, conveyor belt; 41, conveyor roller; 42, drive motor; 43, limit roller; 44, filter sieve hole; 45, baffle; 46, triangular block; 5, processing unit; 50, processing wheel; 51, processing belt; 52, linkage belt; 53, center shaft; 54, reversing gear; 210, cross plate; 211, rubber sealing block; 212, strip slide; 6, adjustment unit; 60, control gear; 61, adjustment gear; 62, adjustment gear ring; 63, connecting shaft; 70, replacement window; 71, sealing door panel; 80, collecting pipe; 81, condensation plate; 82, condensation tube. DETAILED DESCRIPTION

[0054] The following is combined with Figure 1-Figure 14 While embodiments of the invention have been described in detail, the invention can be implemented in many different ways as defined and covered by the claims.

[0055] The embodiment of the present application discloses an environmentally friendly base material packaging stretch film forming method, which illustrates that it uses an environmentally friendly base material packaging stretch film forming device, which is mainly used in the process of preparing and forming the stretch film. In terms of technical effect, it can avoid the problem of a large number of black spots and dust being mixed in the stretch film during the preparation process of the stretch film, and improve the transparency of the stretch film; in particular, before the preparation of the stretch film, if the raw materials of the stretch film are not completely cleaned and processed, the prepared stretch film will emit a strong odor; further, the present invention can solve the problem of the stretch film in the above-mentioned prior art that continues to emit odor. Example

[0056] See also Figure 1 and Figure 2 As shown, it is a structural schematic diagram of the stretch film forming device in the stretch film preparation method in this embodiment; an environmentally friendly base material packaging stretch film forming method, which uses an environmentally friendly base material packaging stretch film forming device, including a raw material processing box 1, which is provided with an inner cavity 10 and an inlet and outlet of raw material particles A connected to the inner cavity 10.

[0057] The raw material processing box 1 has inlets and outlets for raw material particles A at both ends in the length direction. The raw material particles A enter from one end of the raw material processing box 1 , and after being processed in the raw material processing box 1 , the raw material particles A come out from the other end of the raw material processing box 1 .

[0058] The inner cavity 10 in the raw material processing box 1 is mainly used to process the odor of the raw material particles A, and can also screen the raw material particles A to ensure that the raw material particles A that meet the requirements are subsequently prepared for stretch film forming.

[0059] See also Figure 2 As shown in the above, a filter 2 is also provided in the inner cavity 10 of the raw material processing box 1, which can filter the raw material particles A in the raw material processing box 1 and eliminate the odor emitted from the raw material particles A. Specifically, the filter 2 is provided on the raw material processing box 1, and a filter cavity 22 for placing the filter 2 is integrated on the inner cavity 10 of the raw material processing box 1. The filter 2 includes a filter gasket 20 for filtering the odor generated after the raw material particles A are steam cleaned, and a mounting bracket 21 for mounting the filter gasket 20. The mounting bracket 21 is rotatably disposed in the filter cavity 22 of the raw material processing box 1.

[0060] When the raw material processing box 1 enters the interior of the raw material processing box 1, steam is sprayed from bottom to top, so that the steam can be sprayed onto the surface of the raw material particles A; first, the surface of the raw material particles A is flushed by steam to wash away the dust on the surface of the raw material particles A; second, the odor of the raw material particles A is washed away by the steam covering the surface of the raw material particles A; third, when the steam covers the surface of the raw material particles A, the temperature of the raw material particles A is also constantly rising, so that the raw material particles A inside the entire raw material processing box 1 can be kept constant at a suitable temperature, ensuring that the odor in the raw material particles A can be dissipated faster and more thoroughly, realizing the environmental protection of the raw material particles A, and improving the transparency and performance of the raw material particles A; fourth, the raw material particles A can be disinfected by steam, further improving the safety of the raw material particles A.

[0061] In the above, the raw material particles A are rinsed and filtered by steam, and the generation of steam requires a steam generator 3; see Figure 2 , which is a schematic diagram of the structure of the steam generator 3 ; specifically, a steam generator 3 for cleaning and filtering dust on the raw material particles A is laid in the raw material processing box 1 .

[0062] It should be noted that the steam generator 3 is a known structure; the steam generator 3 is a mechanical device that uses the heat energy of fuel or other energy sources to heat water into steam. The trajectory of the steam in the steam generator 3 is sprayed from bottom to top along the raw material processing box 1 into the filter cavity 22. After the steam entering the filter cavity 22 is filtered for odor, it re-enters the steam generator 3 to filter the raw material particles A.

[0063] The steam generator 3 is disposed inside the raw material processing box 1 , and the steam generator 3 can spray from bottom to top along the height direction of the raw material processing box 1 to ensure the processing and filtering of the raw material particles A in the raw material processing box 1 .

[0064] When the steam acts on the raw material particles A, the steam will absorb and mix the odor emitted by the raw material particles A, so that the gas is integrated into the steam, and under the push of the steam, the steam and the gas can move synchronously to the top of the raw material processing box 1 until the steam and the gas enter the filter cavity 22 on the raw material processing box 1 and move. At this time, the filter 2 in the filter cavity 22 filters the steam and the odorous gas.

[0065] When steam is used to flush the raw material particles A inside the raw material processing box 1, in order to further improve the filtering efficiency of the raw material particles A in the raw material processing box 1, the present invention also proposes a conveying steel belt 40, which is used to convey the raw material particles A to ensure batch operation of filtering and cleaning the raw material particles A, and can improve the cleaning efficiency of the raw material particles A, and avoid the raw material particles A from piling up together, resulting in the raw material particles A in the middle of the accumulated raw material particles A being unable to be effectively filtered. For details, refer to the following Figure 2 and Figure 3 shown.

[0066] A movable conveyor steel belt 40 is arranged inside the raw material processing box 1 along its length direction, and a plurality of conveyor rollers 41 for driving the conveyor steel belt 40 are arranged on the inner wall of the raw material processing box 1. A drive motor 42 is connected to the conveyor roller 41 on one side, and the drive motor 42 is arranged on the outer wall of the raw material processing box 1 through a motor seat.

[0067] A limiting roller 43 for controlling the shape of the conveyor belt 40 is provided at one end of the conveyor belt 40 close to the middle of the raw material processing box 1 so that the conveyor belt 40 on one side has a wavy structure. The limiting roller 43 is rotatably arranged on the inner wall of the raw material processing box 1.

[0068] The conveyor belt 40 is made of a flexible material, and no reaction will occur between the conveyor belt 40 and the raw material particles A.

[0069] During the specific implementation process, the drive motor 42 is started, and the drive motor 42 controls the conveyor roller 41 to drive the conveyor steel belt 40 to rotate at a uniform speed, and the two ends of the conveyor steel belt 40 rotate along the length direction of the raw material processing box 1. At the same time, the two ends of the conveyor steel belt 40 protrude from the raw material processing box 1. The purpose is to facilitate the operator to place and take the raw material particles A, thereby improving the convenience of filtering the raw material particles A.

[0070] It should be noted that a number of groups of limiting rollers 43 are provided on the entire conveyor steel belt 40, and the movement trajectory of the conveyor steel belt 40 is adjusted by the limiting rollers 43 so that the upper end of the conveyor steel belt 40 can move in a wave-like manner. After the raw material particles A are placed on the conveyor steel belt 40, the height difference formed by the wavy structure of the upper end of the conveyor steel belt 40 ensures that the raw material particles A collide and jump when moving to the recessed position of the conveyor steel belt 40, so that the density between the raw material particles A becomes sparse, thereby improving the filtration efficiency of steam for each raw material particle A, and enabling the raw material particles A to collide with each other, ensuring that the stains on the surface of the raw material particles A that are difficult to clean can fall off.

[0071] When the raw material particles A fall to the recessed position of the conveyor steel belt 40, the raw material particles A collide quickly with each other, and the impurities attached to the surface of the raw material particles A can be removed through the friction generated by the collision. At the same time, when the steam flushes the bouncing raw material particles A, the odor emitted from the surface of the raw material particles A is flushed away. After the steam contacts the raw material particles A, the overall temperature of the raw material particles A can be increased, ensuring that the raw material particles A are within the adapted temperature, thereby accelerating the odor emission from the raw material particles A.

[0072] When the raw material is further flushed with steam, the unforeseen dangerous substances such as viruses that the raw material particles A come into contact with during the transportation process are disinfected and sterilized.

[0073] Reference Figure 3 , Figure 4 and Figure 5 As shown, that is, a schematic diagram of the structure for screening the raw material particles A in this embodiment; specifically, a plurality of filter sieve holes 44 are provided on the surface of the conveyor steel belt 40 for easy penetration of steam, and the steam passes through the filter sieve holes 44 from bottom to top to flush the raw material particles A, and the impurities flushed down pass through the filter sieve holes 44 for impurity separation, and upright baffles 45 are symmetrically arranged on both sides of the conveyor steel belt 40, and the baffles 45 are connected to the inner wall of the raw material processing box 1 and block the raw material particles A during the flushing process.

[0074] It should be noted that a plurality of filter sieve holes 44 are provided on the conveyor steel belt 40 . Firstly, when the conveyor steel belt 40 transports the raw material particles A, impurities on the surface of the raw material particles A can fall off under the flushing of steam and be separated from the raw material particles A through the filter sieve holes 44 on the conveyor steel belt 40 .

[0075] Secondly, the filter mesh 44 can screen the size of the raw material particles A and filter out the raw material particles A that do not meet the requirements and are smaller in size.

[0076] Reference Figure 4 and Figure 5As shown, that is, a schematic diagram of the structure for further improving the collision efficiency of the raw material particles A in this embodiment; specifically, a plurality of triangular blocks 46 are provided at the movement trajectory of the conveying steel belt 40 to force the raw material particles A to collide during the conveying process, and the triangular blocks 46 are installed in the raw material processing box 1.

[0077] If the raw material particles A move directly along the conveyor steel belt 40, the raw material particles A will slide along the inclined surface of the conveyor steel belt 40 to the bottom of the depression of the conveyor steel belt 40 and will not be able to bounce. A triangular block 46 is provided at the clockwise motion trajectory of the conveyor steel belt 40, so that when the raw material particles A fall from high to low, the raw material particles A will hit the triangular block 46, thereby increasing the bounce height and the duration of the bounce of the raw material particles A. The longer the raw material particles A bounce, the better the efficiency of the steam flushing them, and the more efficient the processing of the raw material particles A.

[0078] Replay Figure 3 As shown, when the raw material particles A enter the recessed position of the conveyor steel belt 40, the raw material particles A cannot move from bottom to top again along the conveyor steel belt 40. At this time, the present invention proposes a processing part 5, which can drive the raw material particles A to be transported from a low place to a high place, as shown below.

[0079] A processing part 5 is also provided at the upper end of the conveyor steel belt 40, and the processing part 5 includes a processing wheel 50, a processing belt 51, a linkage belt 52, a central shaft 53 and a reversing gear 54; the processing wheels 50 rotate symmetrically in the raw material processing box 1, and the two processing wheels 50 are inclinedly distributed, the processing belt 51 is sleeved on the two processing wheels 50, and a wiping brush for wiping the raw material particles A is provided on the processing belt 51.

[0080] The central shaft 53 rotates on the inner wall of the raw material processing box 1, and the reversing gears 54 are respectively installed on the central shaft 53 and the conveying roller 41 on one side, and the two reversing gears 54 are meshed with each other, and the linkage belt 52 is sleeved between the central shaft 53 and the processing wheel 50.

[0081] When the conveyor steel belt 40 moves, the conveyor roller 41 on the conveyor steel belt 40 drives the central shaft 53 to rotate through two meshing reversing gears 54. It should be noted that the conveyor roller 41 rotates in opposite directions to the central shaft 53. When the central shaft 53 rotates, the processing wheel 50 is driven by the linkage belt 52 to control the processing belt 51 to rotate counterclockwise.

[0082] When the processing belt 51 rotates counterclockwise, the wiping brush on the processing belt 51 can stick the raw material particles A that have bounced and accumulated in the depression of the conveyor steel belt 40, so that the raw material particles A move from low to high through the gap between the processing belt 51 and the inclined surface of the conveyor steel belt 40 until the raw material particles A can move and bounce back and forth, thereby improving the filtration efficiency of the raw material particles A.

[0083] After the raw material particles A have been filtered and cleaned, the raw material particles A are finally transported by the conveyor belt 40 out of the raw material processing box 1 and enter into the subsequent equipment for preparing the stretched film, thereby realizing the preparation of the stretched film.

[0084] Reference Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown; specifically, the mounting bracket 21 includes a transverse plate 210 and rubber sealing blocks 211 fixedly connected at both ends of the transverse plate 210, the transverse plate 210 rotates on the raw material processing box 1, the rubber sealing blocks 211 are integrated on both sides of the length direction of the transverse plate 210, and the opposite side of the rubber sealing blocks 211 is provided with a strip groove 212 for sliding installation of the filter gasket 20.

[0085] A replacement window 70 for replacing the filter gasket 20 is provided on the raw material processing box 1 , and a sealing door panel 71 that can be opened and closed is provided at the replacement window 70 .

[0086] When the steam flushes and filters the raw material particles A, the gas and steam will merge, and the steam will always flush from bottom to top. Therefore, after contacting the raw material particles A, the contaminated steam generator 3 will continue to move upward under the continuous impact until the contaminated steam enters the filter cavity 22, and the contaminated steam is filtered through the filter gasket 20 on the filter cavity 22, and the odorous gas and some impurities are adsorbed onto the filter gasket 20.

[0087] After long-term use, the filter gasket 20 needs to be replaced regularly. The specific replacement and installation are as follows:

[0088] When installing the filter gasket 20, first open the sealing door plate 71 on the replacement window 70, then insert the filter gasket 20 into the strip slide groove 212 on the rubber sealing block 211 along the two rubber sealing blocks 211, and make the filter gasket 20 fit on the cross plate 210. Two filter gaskets 20 are arranged on each cross plate 210; there are four groups of cross plates 210 in total.

[0089] When the filter gasket 20 is replaced, when the filter gasket 20 filters odors and impurities, a large amount of impurities will be adsorbed on the filter gasket 20. If it is not cleaned for a long time, the effect of the filter gasket 20 on filtering odors and impurities will deteriorate. When the filter gasket 20 is replaced, the filter gasket 20 can be taken out along the strip slide groove 212 on the rubber sealing block 211.

[0090] Reference Fig.10 and Fig.11As shown, after the filter gasket 20 filters the steam, the steam will pass through the filter gasket 20, and the steam will enter the collecting pipe 80 at the upper end of the raw material processing box 1. After the steam contacts the condensation plate 81 in the collecting pipe 80, the steam will condense into condensed water, and the condensed water will drip along the inclined condensation plate 81 to the bottom of the collecting pipe 80, and the filtered steam will be collected. Finally, the collected and filtered condensed water will be transported back to the interior of the steam generator 3.

[0091] A collecting pipe 80 for collecting liquid condensed from steam is integrally connected to the filter cavity 22 of the raw material processing box 1. An inclined condensation plate 81 is provided on the top of the collecting pipe 80. A condensation pipe 82 is provided in the collecting pipe 80 for the steam generator 3 to extract the filtered condensed water.

[0092] The collected condensed water is mainly transported through the condensation pipe 82 .

[0093] Example 2: On the basis of Example 1, in order to further ensure the efficiency of steam filtration, enable the reuse of steam and reduce cost consumption, the present invention also proposes an adjustment unit 6, which can adjust the position of the filter gasket 20 so that multiple groups of filter gaskets 20 can be combined in different positions to achieve the improvement and change of the efficiency of steam filtration.

[0094] See also Fig.12 and Fig.13 As shown, the mounting bracket 21 is also provided with an adjusting portion 6 for adjusting the position of the filter gasket 20 to change the filtering effect. The adjusting portion 6 includes a control gear 60, an adjusting gear 61, an adjusting gear ring 62 and a connecting shaft 63. The control gear 60 is rotatably arranged on the raw material processing box 1, and the adjusting gears 61 are arranged on the raw material processing box 1 at equal intervals along the circumferential direction of the control gear 60. Several adjusting gears 61 are meshed with the control gear 60, and the adjusting gear ring 62 is installed on the raw material processing box 1. The adjusting gear ring 62 is meshed with several adjusting gears 61. The connecting shaft 63 is connected to the mounting bracket 21 along the width direction of the raw material processing box 1, and the connecting shaft 63 passes through the raw material processing box 1 and is connected to the adjusting gear 61.

[0095] The outer side of the transverse plate 210 is arranged on the adjusting gear 61, and the rotation of the adjusting gear 61 can drive the transverse plate 210 to adjust its position; the transverse plate 210 is a mesh structure and does not affect the filtration of steam.

[0096] In the initial state, a total of four groups of transverse plates 210 are arranged in the raw material processing box 1, and each group of transverse plates 210 is fixedly connected to the adjusting gear 61, and a total of two filter pads 20 are arranged on each group of transverse plates 210; and in the initial state, the four groups of transverse plates 210 are horizontally distributed in groups of two, so that the four groups of transverse plates 210 are in a two-letter state.

[0097] At this time, the steam can be filtered from bottom to top through the filter gasket 20 , and the distance that the steam passes through the filter gasket 20 is the thickness of the filter gasket 20 .

[0098] See also Fig.13 As shown, in order to better improve the filtering effect of the filter gasket 20, the control gear 60 is rotated, and the control gear 60 drives the four sets of adjusting gears 61 on the periphery to rotate synchronously, so that the filter gasket 20 on the four sets of adjusting gears 61 can be changed from a "two" shape to an "X" shape. At this time, the steam needs to pass through the filter gasket 20, and the distance it needs to pass is the vertical distance from bottom to top. At this time, the distance the steam passes is much greater than the horizontal distribution distance of the steam passing through the filter gasket 20 in the initial state. Therefore, when the filter gasket 20 is distributed in an "X" shape, the steam filtering effect is better.

[0099] Furthermore, there are various types of materials for making stretch films, so for some materials with better quality, the filter gasket 20 can be adjusted to a "two" shape; for some materials with poorer quality, the filter gasket 20 can be adjusted to an "X" shape, which ultimately greatly improves the adaptability of the present invention.

[0100] See also Fig.14 Shown is a flow chart of the environmentally friendly base material packaging stretch film forming method of the present invention, as shown below.

[0101] S1. Raw material transportation: First, the driving motor 42 is started, and the driving motor 42 controls the conveying roller 41 to drive the conveying steel belt 40 to rotate at a uniform speed, and the two ends of the conveying steel belt 40 rotate along the length direction of the raw material processing box 1, and then the raw material particles A are placed on the conveying steel belt 40 for uniform transportation so that they enter the interior of the raw material processing box 1.

[0102] S2. Steam flushing: When the raw material particles A enter the raw material processing box 1 along the raw material processing box 1, steam is sprayed from bottom to top, so that the steam continuously impacts the raw material particles A inside the raw material processing box 1, and the raw material particles A are constantly moving and colliding during the steam impact, so that impurities on the surface of the raw material particles A fall off, and the raw material particles A fall into the recessed position of the conveyor steel belt 40. At this time, the raw material particles A collide quickly with each other, and the impurities attached to the surface of the raw material particles A can be removed through the friction generated in the collision. At the same time, when the steam flushes the bouncing raw material particles A, the odor emitted from the surface of the raw material particles A is flushed away, and after the steam contacts the raw material particles A, the overall temperature of the raw material particles A can be increased to ensure that the raw material particles A are within the adapted temperature and accelerate the odor emission inside the raw material particles A.

[0103] S3. Steam deodorization: When steam impacts the raw material particles A, the temperature of the steam can also sterilize and disinfect the surface of the raw material particles A. Further, after the raw material particles A come into contact with the steam, the raw material particles A continue to heat up, so that the odor of the raw material particles A is quickly dissipated, and the odor is mixed with the steam after coming into contact with the raw material particles A. Therefore, the steam generator 3 that is contaminated after coming into contact with the raw material particles A will continue to move upward under the continuous impact until the contaminated steam enters the filter cavity 22, and the contaminated steam is filtered through the filter gasket 20 on the filter cavity 22, and the odorous gas and some impurities are adsorbed onto the filter gasket 20.

[0104] S4, steam circulation: When steam continuously flushes the raw material particles A, a certain amount of liquid will be consumed, and the liquid will be contaminated during the flushing process. Therefore, after being filtered through the filter 2, the steam is re-condensed into liquid for recycling, thereby achieving the reuse of the liquid and reducing the waste of resources.

[0105] When the filter gasket 20 needs to be replaced regularly after being used for a long time, first open the sealing door panel 71 on the replacement window 70, and then take out the filter gasket 20 along the strip groove 212 on the rubber sealing block 211; when replacing a new filter gasket 20, insert the filter gasket 20 into the strip groove 212 on the rubber sealing block 211 along the strip grooves 212 on the two rubber sealing blocks 211, and make the filter gasket 20 fit on the cross plate 210.

[0106] S5. Raw material processing: After the raw material particles A are rinsed and odor filtered, they are promptly transported to the existing extruder. The raw material particles A are heated and melted in the existing extruder to form a melt.

[0107] S6. Raw material extrusion: The melt is extruded into a film through an extruder to form a continuous film.

[0108] S7, film cooling: The film is rapidly cooled by existing cooling equipment to make it solidify quickly.

[0109] S8. Film stretching: After the film is solidified, the solidified and cooled film enters the existing stretching equipment to stretch the film, so that the film has better tensile properties and mechanical strength.

[0110] S9, product forming: After the film is stretched, it is cut and rolled to finally be made into a base material packaging stretch film.

[0111] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and therefore it is intended that all changes within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0112] 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

1. A method for forming an environmentally friendly base material packaging stretch film, which uses an environmentally friendly base material packaging stretch film forming device, characterized in that: It comprises a raw material processing box (1) and a filter (2) arranged on the raw material processing box (1); the environmentally friendly base material packaging stretch film forming method comprises the following steps: S1. Raw material transportation: firstly, the raw material produced for preparing the base material packaging stretch film is placed in the raw material processing box (1), and then the raw material particles are transported through the raw material processing box (1) and enter the processing area in the raw material processing box (1); S2, steam flushing: after the raw material particles enter the raw material processing box (1), steam is then sprayed from bottom to top, so that the steam continuously impacts the raw material particles inside the raw material processing box (1). During the impact of the steam, the raw material particles continuously move and collide, so that impurities on the surface of the raw material particles fall off. The impurities that fall off are collected by the filter (2) provided on the raw material processing box (1) under the impact of the steam; S3, steam deodorization: When the steam impacts the raw material particles, the temperature of the steam also sterilizes and disinfects the surface of the raw material particles. Further, after the raw material particles come into contact with the steam, the temperature of the raw material particles continues to rise, so that the odor of the raw material particles is quickly dissipated, and the odor is mixed with the steam after contacting, and then filtered through the filter (2); S4, steam circulation: when the steam continuously flushes the raw material particles, the liquid is consumed, and the liquid is contaminated during the flushing process. Therefore, after being filtered through the filter (2), the steam is re-condensed into liquid for recycling; S5, raw material processing: after the raw material particles are rinsed and odor filtered, they are promptly transported to the existing extruder, where the raw material particles are heated and melted into a melt; S6, raw material extrusion: the melt is extruded into a film through an extruder to form a continuous film; S7, film cooling: the film is rapidly cooled by existing cooling equipment to make it solidify quickly; S8, film stretching: After the film is solidified, the solidified and cooled film enters the existing stretching equipment to stretch the film; S9, product forming: after the film is stretched, it is cut and rolled to finally be made into a base material packaging stretch film; The raw material processing box (1) is provided with an inner cavity (10) and an inlet and outlet for raw material particles communicated with the inner cavity (10); and a filter cavity (22) for placing a filter (2) is integrally provided on the inner cavity (10) of the raw material processing box (1); the filter (2) comprises a filter pad (20) for filtering odor generated after steam cleaning of the raw material particles and a mounting bracket (21) for mounting the filter pad (20); the mounting bracket (21) is rotatably disposed in the filter cavity (22) of the raw material processing box (1); The raw material processing box (1) is provided with a steam generator (3) for cleaning and filtering raw material particles; A movable conveyor belt (40) is arranged inside the raw material processing box (1) along its length direction, and a plurality of groups of conveyor rollers (41) for driving the conveyor belt (40) to move are arranged on the inner wall of the raw material processing box (1), and a driving motor (42) is connected to one side of the conveyor roller (41), and the driving motor (42) is arranged on the outer wall of the raw material processing box (1) through a motor seat; A limiting roller (43) for controlling the moving track of the conveyor steel belt (40) is arranged at one end of the conveyor steel belt (40) close to the middle of the raw material processing box (1), so that the conveyor steel belt (40) on one side forms a wave structure, and the limiting roller (43) is rotatably arranged on the inner wall of the raw material processing box (1); The surface of the conveyor steel belt (40) is provided with a plurality of filter sieve holes (44) for steam to pass through. Steam passes through the filter sieve holes (44) from bottom to top to flush the raw material particles. Impurities flushed down are separated from the impurities through the filter sieve holes (44). Vertical baffles (45) are symmetrically arranged on both sides of the conveyor steel belt (40). The baffles (45) are connected to the inner wall of the raw material processing box (1) and block the raw material particles during the flushing process.

2. The method for forming an environmentally friendly base material packaging stretch film according to claim 1, characterized in that: The trajectory of the steam in the steam generator (3) is to be ejected from bottom to top along the raw material processing box (1) into the filter cavity (22); after the steam enters the filter cavity (22) and is filtered for odor, it re-enters the steam generator (3) to filter the raw material particles.

3. The method for forming an environmentally friendly base material packaging stretch film according to claim 1, characterized in that: A plurality of triangular blocks (46) are also provided at the movement track of the conveying steel belt (40) to force the raw material particles to collide during the conveying process. The triangular blocks (46) are installed in the raw material processing box (1).

4. The method for forming an environmentally friendly bottom material packaging stretch film according to claim 1, characterized in that: A processing section (5) is also provided at the upper end of the conveyor steel belt (40), and the processing section (5) comprises a processing wheel (50), a processing belt (51), a linkage belt (52), a central shaft (53) and a reversing gear (54); the processing wheel (50) rotates symmetrically in the raw material processing box (1), and the two processing wheels (50) are arranged obliquely, the processing belt (51) is sleeved on the two processing wheels (50), and a wiping brush for wiping raw material particles is provided on the processing belt (51); The central shaft (53) rotates on the inner wall of the raw material processing box (1), and the reversing gear (54) is respectively installed on the central shaft (53) and the conveying roller (41) on one side, and the two reversing gears (54) are meshed with each other, and the linkage belt (52) is sleeved between the central shaft (53) and the processing wheel (50).

5. The method for forming an environmentally friendly bottom material packaging stretch film according to claim 1, characterized in that: The mounting bracket (21) comprises a transverse plate (210) and rubber sealing blocks (211) fixedly connected at both ends of the transverse plate (210); the transverse plate (210) rotates on the raw material processing box (1); the rubber sealing blocks (211) are integrally arranged on both sides of the transverse plate (210) in the length direction; and opposite sides of the rubber sealing blocks (211) are provided with strip-shaped sliding grooves (212) for slidingly mounting the filter gasket (20).

6. The method for forming an environmentally friendly base material packaging stretch film according to claim 1, characterized in that: The raw material processing box (1) is provided with a replacement window (70) for replacing the filter gasket (20), and the replacement window (70) is provided with a sealing door panel (71) that can be opened and closed.

7. The method for forming an environmentally friendly base material packaging stretch film according to claim 1, characterized in that: A collection pipe (80) for collecting liquid condensed from steam is integrally connected to the filter cavity (22) of the raw material processing box (1), a condensation plate (81) arranged obliquely is provided on the top of the collection pipe (80), and a condensation pipe (82) for extracting filtered condensed water from the steam generator (3) is provided in the collection pipe (80).

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