A process for making a puncture-resistant high-strength wrapping film
By using gravity sensors and an automated mixing system, the problems of low raw material ratio and mixing efficiency in the production of stretch film have been solved, achieving precise ratio and uniform mixing of stretch film raw materials, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGBO HUAFENG PACKAGE
- Filing Date
- 2023-05-06
- Publication Date
- 2026-06-23
Smart Images

Figure CN116572449B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of stretch film, specifically to a processing technology for a puncture-resistant, high-strength stretch film. Background Technology
[0002] Stretch film is mainly made of PE polyethylene. Also known as stretch film or heat shrink film, domestically produced stretch film was among the first to use DOA as a plasticizer and self-adhesive. This resulted in high-strength, highly elastic film that can tightly wrap products of any geometric shape and effectively prevent bundling and product damage. It also offers excellent protection against loosening, rain, and dust.
[0003] Currently, the processing of puncture-resistant high-strength stretch film involves first mixing various raw materials in appropriate proportions, then pushing the proportioned raw materials into a hopper through a suction tube, melting them at high temperature, and then flowing out of a mold. The stretch film is then wound up by layers of guide rollers. However, in this process, the proportions of the various raw materials and their thorough mixing are crucial. Normally, the proportions are done manually by weighing each material, which significantly reduces work efficiency and is not conducive to large-scale production in a short time. Furthermore, manual weighing introduces errors that reduce the puncture resistance of the stretch film. Uneven mixing of the raw materials results in uneven puncture resistance in the produced stretch film. Therefore, this process does not meet current requirements. To address this, we propose a processing technology for puncture-resistant high-strength stretch film. Summary of the Invention
[0004] This invention provides a processing technology for puncture-resistant, high-strength stretch film. The beneficial effects of this technology are that it solves the problem mentioned in the background section regarding the crucial importance of precise proportioning and thorough mixing of various raw materials used in the production of stretch film. However, in practice, the proportioning of raw materials is typically done manually by weighing each one, which significantly reduces work efficiency and is not conducive to large-scale production in a short time. Furthermore, manual weighing can introduce errors in the proportioning, reducing the puncture resistance of the stretch film. If the raw materials are not mixed evenly, the resulting stretch film will exhibit uneven puncture resistance.
[0005] This invention provides the following technical solution: a processing technology for puncture-resistant high-strength wrapping film, comprising the following specific steps:
[0006] S1. Preparation of ingredient proportions: Place the proportioned PE raw materials into the No. 1 batching box, and introduce the thickening masterbatch into the weighing box to control their respective proportions.
[0007] S2. Raw materials for the stretch film during mixing: The proportioned PE raw materials and thickening masterbatch are fed into the machine body through the guide plate. At this time, the proportioned raw materials are fully mixed and stirred by the guide plate, baffles and screw rod.
[0008] S3. Making the stretch film: The raw material is introduced into a high-temperature device for high-temperature die casting, large boiling water cooling, and tensioning of the stretch film by the tensioning group. Finally, it is rolled into a stretch film roll.
[0009] As an optional processing solution for the puncture-resistant high-strength stretch film described in this invention, the following configuration is provided: a feed pipe is fixedly installed at the bottom of the machine body; a first batching box is located on the side of the machine body; a shell is fixedly installed at the top of the machine body; several support legs are fixedly installed at the bottom of the shell, and the bottoms of the support legs are fixedly connected to the top of the machine body; a second batching box is fixedly installed on the inner wall of the top of the shell; a weighing box is located at the bottom of the second batching box; pressure plates are fixedly installed on both sides of the weighing box; the ends of the pressure plates are inserted into the interior of the shell; gravity sensors are placed at the bottom of the two pressure plates, and the bottoms of the gravity sensors are fixedly connected to the side of the shell.
[0010] As an optional processing solution for the puncture-resistant high-strength stretch film of the present invention, wherein: a feeding door is slidably installed on both sides of the bottom of the second batching box, and a discharge door is slidably installed on both sides of the bottom of the weighing box, with the discharge door located directly below the feeding door.
[0011] As an optional processing solution for the puncture-resistant high-strength wrapping film of the present invention, all first sliding holes and second sliding holes are opened on both sides of the outer shell. The first sliding hole is located directly above the second sliding hole on the same side, and the size of the first sliding hole is the same as that of the second sliding hole.
[0012] As an optional processing solution for the puncture-resistant high-strength wrapping film described in this invention, the following is provided: a closed motor is fixedly installed on the rear side of the outer shell; a first bidirectional lead screw is installed at the output end of the closed motor; a transverse helical gear is fixedly installed at the end of the first bidirectional lead screw; the transverse helical gear meshes with a longitudinal helical gear; a rotating rod is fixedly installed at the bottom of the longitudinal helical gear; a connecting block is fixedly installed on the rear side of the outer shell; the rotating rod is inserted inside the connecting block; a longitudinal bevel gear is fixedly installed at the end of the rotating rod; the longitudinal bevel gear meshes with a transverse bevel gear; a second bidirectional lead screw is fixedly installed on the side of the transverse bevel gear; a support plate is rotatably installed at the end of the second bidirectional lead screw; and the side of the support plate is fixedly connected to the side of the outer shell.
[0013] As an optional processing solution for a puncture-resistant high-strength wrapping film according to the present invention, wherein: the first bidirectional screw is slidably sleeved with two threaded sleeves, the internal thread patterns of the two threaded sleeves are opposite, and a connecting rod is fixedly installed on the side of the two threaded sleeves near the outer shell, and the ends of the two connecting rods are respectively fixedly connected to the sides of the two discharge gates; the second bidirectional screw is slidably sleeved with two sliding sleeves, the internal thread patterns of the two sliding sleeves are opposite.
[0014] As an optional processing solution for the puncture-resistant high-strength wrapping film of the present invention, wherein: a fixing rod is fixedly installed on the side of the two sliding sleeves, and the ends of the two fixing rods are respectively fixedly connected to the side of the two discharge gates; a strip hole and a limiting hole are opened on the rear side of the outer shell; the connecting rod is inserted into the inside of the strip hole; and the fixing rod is inserted into the inside of the limiting hole.
[0015] As an optional processing solution for the puncture-resistant high-strength wrapping film described in this invention, a drive motor is fixedly installed on the top of the machine body, a rotating shaft is installed at the output end of the drive motor, the bottom of the rotating shaft is fixedly connected to the center of the guide plate, and a plurality of baffles are fixedly installed on the top of the guide plate, with grooves provided between the baffles.
[0016] As an optional processing solution for the puncture-resistant high-strength wrapping film of the present invention, a guide plate is fixedly installed on the bottom side of the inner wall of the outer shell, and a through hole is opened at the bottom of the outer shell.
[0017] As an optional processing solution for a puncture-resistant high-strength wrapping film according to the present invention, the machine body has a feed inlet at the top, and the through hole is located directly above the feed inlet.
[0018] The present invention has the following beneficial effects:
[0019] 1. The processing technology for this puncture-resistant high-strength stretch film involves the following steps: When the thickening masterbatch needs to be proportioned and then mixed inside the machine, the closing motor is first started. The operation of the closing motor will drive the No. 1 bidirectional lead screw to rotate. At this time, the two threaded sleeves around the No. 1 bidirectional lead screw will move in opposite directions under the rotation of the No. 1 bidirectional lead screw. The movement of the threaded sleeves will drive the connecting rod to move. At this time, the two discharge gates will move along with the corresponding connecting rods, so that the thickening masterbatch will fall from the No. 2 batching box into the weighing box. Of course, during this process, the rotation of the No. 1 bidirectional lead screw will drive the transverse helical gear at the end to rotate, and the rotation of the transverse helical gear will drive the longitudinal helical gear. The rotation of the longitudinal helical gear drives the rotation of the rotating rod, which in turn drives the rotation of the longitudinal bevel gear at the bottom. The rotation of the longitudinal bevel gear drives the rotation of the transverse bevel gear, which in turn drives the rotation of the second bidirectional lead screw. At this time, the two sliding sleeves move towards each other under the rotation of the second bidirectional lead screw, and the discharge gates on both sides close. Then, using a weighing box and gravity sensor, the tackifying masterbatch that has fallen into the weighing box is weighed, thereby realizing the reasonable proportioning of raw materials for the stretch film. This reduces the degree of human involvement in the production process, improves the accuracy of raw material proportioning, and thus ensures the puncture resistance of the produced stretch film.
[0020] 2. The processing technology of this puncture-resistant high-strength stretch film utilizes a guide plate and baffles. When the weighed viscous masterbatch enters the machine body, the drive motor is started. At this time, the drive motor drives the rotating shaft to rotate, which in turn drives the guide plate and baffles to rotate at high speed. The viscous masterbatch that has entered the machine body will fall to the top of the guide plate and be distributed in the grooves between several baffles. Due to the high-speed rotation of the guide plate, the viscous masterbatch will undergo centrifugal motion, thereby causing the viscous masterbatch to be sprayed onto the inner wall of the machine body. Finally, the screw rod achieves full mixing of the viscous masterbatch and PE raw materials.
[0021] 3. The processing technology of this puncture-resistant high-strength stretch film utilizes a guide plate to weigh out the appropriate amount of thickening masterbatch. At this time, the discharge gate at the bottom of the weighing box is opened by the action of the closed motor, and then the masterbatch is guided into the machine body through the guide plate to ensure that the thickening masterbatch smoothly enters the machine body for thorough mixing. Attached Figure Description
[0022] Figure 1 This is a rear-view stereoscopic structural diagram of the present invention.
[0023] Figure 2 This is a frontal three-dimensional structural diagram of the present invention.
[0024] Figure 3 This is a semi-sectional three-dimensional structural schematic diagram of the present invention.
[0025] Figure 4 For the present invention Figure 1 A magnified structural diagram of part A in the middle.
[0026] Figure 5 For the present invention Figure 1 A magnified structural diagram of part C in the middle.
[0027] Figure 6 For the present invention Figure 3 A magnified structural diagram of section B in the middle.
[0028] Figure 7 This is a schematic diagram of the internal structure of the guide plate in this invention.
[0029] In the diagram: 1. Machine body; 2. No. 1 feeding bin; 3. Feed pipe; 4. Drive motor; 5. Closing motor; 6. Slot; 7. Outer shell; 8. No. 1 sliding hole; 9. No. 2 sliding hole; 10. Pressure plate; 11. Support plate; 12. No. 1 double-acting lead screw; 13. Support leg; 14. No. 2 double-acting lead screw; 15. Longitudinal bevel gear; 16. Rotating rod; 17. Connecting block; 18. Longitudinal helical gear; 19. Transverse... 20. Helical gear; 21. Connecting rod; 22. Sliding sleeve; 23. Fixing rod; 24. Limiting hole; 25. Horizontal bevel gear; 26. Spiral rod; 27. Guide plate; 28. Rotating shaft; 29. Stop bar; 30. No. 2 batching box; 31. Discharge gate; 32. Weighing box; 33. Gravity sensor; 34. Discharge gate; 35. Guide plate; 36. Through hole; 37. Feed inlet; 38. Groove; 39. Threaded sleeve. Detailed Implementation
[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1
[0031] This embodiment aims to address the crucial importance of precise proportioning and thorough mixing of various raw materials in the manufacturing process of stretch film. However, in practice, this is typically done manually by weighing each material individually, which significantly reduces efficiency and is detrimental to large-scale production in short timeframes. Furthermore, manual weighing introduces errors that reduce the puncture resistance of the stretch film. Incomplete mixing of the raw materials results in uneven puncture resistance in the produced stretch film. Please refer to [link / reference]. Figure 1-6 A processing technology for a puncture-resistant, high-strength stretch film includes the following specific steps:
[0032] S1. Preparation of ingredient proportions: Place the proportioned PE raw materials into the No. 1 batching box 2, and introduce the thickening masterbatch into the weighing box 31 to control their respective proportions.
[0033] S2. Raw materials for the stretch film during mixing: The proportioned PE raw materials and thickening masterbatch are fed into the machine body 1 through the guide plate 34. At this time, the proportioned raw materials are fully mixed and stirred by the guide plate 26, the baffle 28 and the screw rod 25.
[0034] S3. Making the stretch film: The raw material is introduced into a high-temperature device for high-temperature die casting, large boiling water cooling, and tensioning of the stretch film by the tensioning group. Finally, it is rolled into a stretch film roll.
[0035] A feed pipe 3 is fixedly installed at the bottom of the machine body 1. The feed pipe 3 facilitates the introduction of PE raw materials into the machine body 1. The first batching box 2 is located on the side of the machine body 1. The outer shell 7 is fixedly installed on the top of the machine body 1. Several support legs 13 are fixedly installed at the bottom of the outer shell 7. The bottom of the support legs 13 is fixedly connected to the top of the machine body 1. The second batching box 29 is fixedly installed on the inner wall of the top of the outer shell 7. The second batching box 29 stores the thickening masterbatch. The weighing box 31 is located on the bottom side of the second batching box 29. The weighing box 31 has pressure plates 10 fixedly installed on both sides. The pressure plates 10 facilitate the weighing of the thickening masterbatch inside the weighing box 31. The ends of the pressure plates 10 are inserted into the inside of the outer shell 7. Gravity sensors 32 are placed at the bottom of the two pressure plates 10. The gravity sensors 32 are connected to the external PLC controller. The bottom of the gravity sensors 32 is fixedly connected to the side of the outer shell 7.
[0036] Both sides of the bottom of the No. 2 batching box 29 are equipped with sliding discharge doors 30. The discharge doors 30 facilitate the release of the thickening masterbatch inside the No. 2 batching box 29, which is convenient for subsequent weighing. Both sides of the bottom of the weighing box 31 are equipped with sliding discharge doors 33. The discharge doors 33 facilitate the release of the weighed thickening masterbatch, which is then introduced into the guide body 1 for thorough mixing. The discharge doors 33 are located directly below the discharge doors 30. Both sides of the outer shell 7 have No. 1 sliding holes 8 and No. 2 sliding holes 9. The No. 1 sliding holes 8 and No. 2 sliding holes 9 facilitate the closing of the discharge doors 30 and the discharge doors 33. The No. 1 sliding hole 8 is located directly above the No. 2 sliding hole 9 on the same side, and the size of the No. 1 sliding hole 8 is the same as that of the No. 2 sliding hole 9.
[0037] A closed motor 5 is fixedly installed on the rear side of the outer casing 7. A first bidirectional lead screw 12 is installed at the output end of the closed motor 5. The first bidirectional lead screw 12 and the second bidirectional lead screw 14 have the same specifications. A transverse helical gear 19 is fixedly installed at the end of the first bidirectional lead screw 12. When it is necessary to put the thickening masterbatch from the second batching box 29 into the weighing box 31, two threaded sleeves 38 are located at both ends of the first bidirectional lead screw 12, and two sliding sleeves 21 are located in the middle of the second bidirectional lead screw 14. The transverse helical gear 19 is meshed with a longitudinal helical gear 18. A rotating rod 16 is fixedly installed at the bottom of the wheel 18, and a connecting block 17 is fixedly installed on the rear side of the outer casing 7. The rotating rod 16 is inserted into the connecting block 17. A longitudinal bevel gear 15 is fixedly installed at the end of the rotating rod 16. The longitudinal bevel gear 15 is meshed with a transverse bevel gear 24. A second bidirectional lead screw 14 is fixedly installed on the side of the transverse bevel gear 24. A support plate 11 is rotatably installed at the end of the second bidirectional lead screw 14. The support plate 11 facilitates the support of the second bidirectional lead screw 14. The side of the support plate 11 is fixedly connected to the side of the outer casing 7.
[0038] Two threaded sleeves 38 are slidably sleeved around the outer periphery of the first bidirectional lead screw 12. The internal threads of the two threaded sleeves 38 are opposite. Connecting rods 20 are fixedly installed on the side of the two threaded sleeves 38 near the outer shell 7. The ends of the two connecting rods 20 are fixedly connected to the sides of the two discharge gates 30 respectively. Two sliding sleeves 21 are slidably sleeved around the outer periphery of the second bidirectional lead screw 14. The internal threads of the two sliding sleeves 21 are opposite. Fixed rods 22 are fixedly installed on the sides of the two sliding sleeves 21. The ends of the two fixed rods 22 are fixedly connected to the sides of the two discharge gates 33 respectively. A slotted hole 6 and a limiting hole 23 are provided on the rear side of the outer shell 7. The slotted hole 6 and the limiting hole 23 facilitate the limiting operation of the connecting rods 20 and the fixed rods 22. The connecting rods 20 are inserted into the slotted hole 6, and the fixed rods 22 are inserted into the limiting hole 23.
[0039] In this embodiment: when the thickening masterbatch needs to be proportioned and then stirred inside the machine body 1, the closed motor 5 is first started. The operation of the closed motor 5 will drive the first bidirectional lead screw 12 to rotate. At this time, the two threaded sleeves 38 around the first bidirectional lead screw 12 will move in opposite directions under the rotation of the first bidirectional lead screw 12. The movement of the threaded sleeves 38 will drive the connecting rod 20 to move. At this time, the two discharge gates 30 will move with the corresponding connecting rods 20, so that the thickening masterbatch falls from the second batching box 29 into the weighing box 31. Of course, in this operation, the rotation of the first bidirectional lead screw 12 will drive the transverse helical gear 19 at the end to rotate. The rotation of gear 19 will drive the rotation of longitudinal helical gear 18, which in turn will drive the rotation of rotating rod 16. The rotation of rotating rod 16 will drive the rotation of the bottom longitudinal bevel gear 15, which in turn will drive the rotation of transverse bevel gear 24. The rotation of transverse bevel gear 24 will drive the rotation of the second bidirectional lead screw 14. At this time, the two sliding sleeves 21 will move towards each other under the rotation of the second bidirectional lead screw 14. At this time, the discharge gates 33 on both sides will close. Then, the tackifying masterbatch that has fallen into the weighing box 31 will be weighed using the weighing box 31 and gravity sensor 32, thereby realizing the reasonable proportioning of raw materials for the stretch film. Example 2
[0040] This embodiment aims to facilitate the thorough mixing of various proportioned raw materials. It is an improvement upon Embodiment 1. For details, please refer to [link / reference]. Figure 3 and Figure 7 A drive motor 4 is fixedly installed on the top of the machine body 1. A rotating shaft 27 is installed at the output end of the drive motor 4. The bottom of the rotating shaft 27 is fixedly connected to the center of the guide plate 26. Several baffles 28 are fixedly installed on the top of the guide plate 26. The guide plate 26 is fixedly connected to the spiral rod 25. The spiral rod 25 facilitates the spiraling of the PE raw material inside the first batching box 2 into the machine body 1. At the same time, it facilitates the full mixing of various raw materials inside the machine body 1. The baffles 28 facilitate the blocking of the entering thickening masterbatch, preventing the thickening masterbatch from directly entering the machine body 1 and failing to achieve full mixing. Grooves 37 are provided between the baffles 28.
[0041] In this embodiment: When the weighed thickening masterbatch enters the machine body 1 using the guide plate 26 and baffles 28, the drive motor 4 is started. At this time, the drive motor 4 will drive the rotating shaft 27 to rotate. The rotation of the rotating shaft 27 will drive the guide plate 26 and baffles 28 to rotate at high speed. At this time, the thickening masterbatch that has entered the machine body 1 will fall to the top of the guide plate and be distributed in the grooves 37 between several baffles 28. Due to the high-speed rotation of the guide plate 26, the thickening masterbatch will undergo centrifugal motion, thereby causing the thickening masterbatch to be sprayed onto the inner wall of the machine body 1. Finally, the screw rod 25 will fully mix the thickening masterbatch and PE raw materials. Example 3
[0042] This embodiment aims to facilitate the solution of the problem of introducing various proportioned raw materials into the body 1. This embodiment is an improvement based on Embodiment 1. For details, please refer to [link / reference needed]. Figure 1 and Figure 6 A guide plate 34 is fixedly installed on the bottom side of the inner wall of the outer shell 7. The guide plate 34 is inclined inside the outer shell 7. A through hole 35 is provided at the bottom of the outer shell 7. The through hole 35 and the feed port 36 facilitate the smooth entry of the weighed thickening masterbatch into the machine body 1. A feed port 36 is provided at the top of the machine body 1, and the through hole 35 is located directly above the feed port 36.
[0043] In this embodiment: using the guide plate 34, the appropriate thickening masterbatch is weighed. At this time, by the action of the closed motor 5, the bottom discharge gate 33 of the weighing box 31 is opened. Then, the masterbatch is guided into the machine body 1 through the guide plate 34 to ensure that the thickening masterbatch smoothly enters the machine body 1 for thorough mixing.
[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0045] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A processing technology for a puncture-resistant, high-strength stretch film, characterized in that, The specific steps include the following: S1. Preparation of ingredient proportions: Place the proportioned PE raw materials into the No. 1 batching box, and introduce the thickening masterbatch into the weighing box to control their respective proportions. S2. Raw materials for the stretch film during mixing: The proportioned PE raw materials and thickening masterbatch are fed into the machine body through the guide plate. At this time, the proportioned raw materials are fully mixed and stirred by the guide plate, baffles and screw rod. S3. Making the stretch film: The raw material is introduced into a high-temperature device for high-temperature die casting, large boiling water cooling, and tensioning of the stretch film by the tensioning group. Finally, it is rolled into a stretch film roll. The outer shell is fixedly installed on the top of the machine body; A closed motor is fixedly installed on the rear side of the housing. A first bidirectional lead screw is installed at the output end of the closed motor. A transverse helical gear is fixedly installed at the end of the first bidirectional lead screw. The transverse helical gear meshes with a longitudinal helical gear. A rotating rod is fixedly installed at the bottom of the longitudinal helical gear. A connecting block is fixedly installed on the rear side of the housing. The rotating rod is inserted into the connecting block. A longitudinal bevel gear is fixedly installed at the end of the rotating rod. The longitudinal bevel gear meshes with a transverse bevel gear. A second bidirectional lead screw is fixedly installed on the side of the transverse bevel gear. A support plate is rotatably installed at the end of the second bidirectional lead screw. The side of the support plate is fixedly connected to the side of the housing. The first bidirectional screw has two threaded sleeves on its outer sliding sleeve. The internal threads of the two threaded sleeves are opposite. A connecting rod is fixedly installed on the side of the two threaded sleeves near the outer shell. The ends of the two connecting rods are fixedly connected to the sides of the two discharge gates respectively. The second bidirectional screw has two sliding sleeves on its outer sliding sleeve. The internal threads of the two sliding sleeves are opposite. Two sliding sleeves are fixedly installed with fixing rods on their sides. The ends of the two fixing rods are fixedly connected to the sides of the two discharge gates respectively. The rear side of the outer shell is provided with a strip hole and a limiting hole. The connecting rod is inserted into the strip hole and the fixing rod is inserted into the limiting hole.
2. The processing technology of a puncture-resistant high-strength wrapping film according to claim 1, characterized in that: A feed pipe is fixedly installed at the bottom of the machine body. The No. 1 batching box is located on the side of the machine body. Several support legs are fixedly installed at the bottom of the outer shell. The bottom of the support legs is fixedly connected to the top of the machine body. The No. 2 batching box is fixedly installed on the inner wall of the top of the outer shell. The weighing box is located at the bottom of the No. 2 batching box. Pressure plates are fixedly installed on both sides of the weighing box. The ends of the pressure plates are inserted into the inside of the outer shell. Gravity sensors are placed at the bottom of the two pressure plates. The bottom of the gravity sensors is fixedly connected to the side of the outer shell.
3. The processing technology of a puncture-resistant high-strength wrapping film according to claim 2, characterized in that: Both sides of the bottom of the No. 2 batching box have sliding discharge doors, and both sides of the bottom of the weighing box have sliding discharge doors, with the discharge doors located directly below the discharge doors.
4. The processing technology of a puncture-resistant high-strength wrapping film according to claim 3, characterized in that: All sliding holes No. 1 and No. 2 are opened on both sides of the outer shell. Sliding hole No. 1 is located directly above sliding hole No. 2 on the same side. The size of sliding hole No. 1 is the same as that of sliding hole No.
2.
5. The processing technology of a puncture-resistant high-strength wrapping film according to claim 4, characterized in that: A drive motor is fixedly installed on the top of the machine body. A rotating shaft is installed at the output end of the drive motor. The bottom of the rotating shaft is fixedly connected to the center of the guide plate. The bottom of the guide plate is fixedly connected to the spiral rod. Several baffles are fixedly installed on the top of the guide plate, and grooves are provided between the baffles.
6. The processing method of a puncture-resistant high-strength wrapping film according to claim 1, characterized in that: A guide plate is fixedly installed on the bottom side of the inner wall of the outer shell, and a through hole is opened at the bottom of the outer shell.
7. The processing method of a puncture-resistant high-strength wrapping film according to claim 6, characterized in that: The top of the machine body has a feed inlet, and the through hole is located directly above the feed inlet.