Plastic tape winding mechanism with automatic feeding and discharging functions

Abstract

The invention discloses a plastic tape winding mechanism with automatic feeding and discharging functions, and relates to the technical field of plastic tape packaging, the plastic tape winding mechanism comprises a case, a feeding unit, a cutting unit, a receiving unit and a controller, the case is used for the feeding unit, the cutting unit, the receiving unit and the controller, the feeding unit is used for tensioning control of a plastic tape, and the cutting unit is used for cutting the plastic tape. The cutting unit is used for detecting a damaged plastic belt and carrying out secondary feeding, the material receiving unit is used for automatically replacing a material disc and winding a material belt, the controller is used for controlling starting and stopping of the feeding unit, the cutting unit and the material receiving unit, and when the plastic belt passes through the feeding unit and the feeding unit detects that the tensile force of the plastic belt changes in the conveying process, the cutting unit is used for cutting the plastic belt. Tension adjustment is conducted through the feeding unit, the winding condition during material receiving is avoided, detection and cutting of surface defects of the plastic tape are conducted through the cutting unit, subsequent secondary conveying of the plastic tape is conducted, finally, a material disc is automatically replaced through the material receiving unit after winding is completed, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic tape packaging, in particular to a plastic tape winding mechanism with automatic loading and unloading functions. Background Art

[0002] In many fields of modern industry, such as packaging, electronics, and automobile manufacturing, plastic tape winding is an indispensable link. The quality of its winding directly affects the performance, appearance, and convenience of subsequent processing of plastic tape products. For example, in the packaging industry, neatly wound, uniformly tensioned, and undamaged plastic tape can ensure the efficiency of the packaging process and improve the sealing and aesthetics of the packaging; in the electronics industry, for the packaging of some precision electronic components, the quality of plastic tape is even more related to the protection and transportation safety of the product.

[0003] However, the traditional plastic tape winding process faces many challenges. First, during the production and winding process of plastic tape, breakage often occurs. Plastic tape may be damaged by scratches, tears, holes, etc. due to impurities in the raw materials, failure of production equipment (such as unstable extruder temperature, uneven pressure of traction rollers, etc.), or improper operation during transportation and storage. Existing detection methods mostly rely on manual visual inspection, which is not only inefficient, but also prone to missed inspections due to factors such as human fatigue and negligence.

[0004] Secondly, when the plastic tape is detected to be damaged, the traditional cutting and subsequent processing methods have obvious shortcomings. The cutting process often requires stopping the machine for manual cutting using tools such as knives, which not only interrupts the production process and reduces production efficiency, but also may cause uneven cutting edges of the plastic tape due to inaccurate manual operation, affecting the subsequent winding quality. Moreover, in the secondary feeding link, the lack of automated guidance and connection mechanisms makes it difficult for the re-fed plastic tape to enter the winding process quickly and accurately, further wasting production time.

[0005] Furthermore, in the process of winding the plastic tape, the regulation of tension is crucial. If the tension is too high, the plastic tape will be stretched and deformed, or even broken; if the tension is too low, the winding will be loose, affecting the winding quality and the convenience of storage and transportation.

[0006] As the winding process progresses, the tray is gradually filled up. The traditional process of collecting and replacing the tray also has many problems. Usually, the winding progress needs to be monitored manually. When the tray is almost full, the machine is stopped and the tray is replaced manually. This process is not only labor-intensive and time-consuming, but also when replacing the tray, improper operation may cause the plastic tape to scatter and become tangled, affecting production efficiency and product quality. Summary of the invention

[0007] The object of the present invention is to provide a plastic tape winding mechanism with automatic loading and unloading functions to solve the problems raised in the prior art.

[0008] To achieve the above object, the present invention provides the following technical solutions: The plastic tape winding mechanism with automatic loading and unloading functions comprises a chassis, a feeding unit, a cutting unit, a receiving unit and a controller. The chassis is placed on a horizontal basis. A feeding port is provided on one end face of the chassis close to the horizontal basis. The feeding unit is fixedly installed inside the chassis. The cutting unit is fixedly installed inside the chassis. The feeding unit is fixedly connected to the cutting unit. The receiving unit is fixedly installed inside the chassis. The cutting unit has the function of cutting damaged plastic tape and secondary feeding. The cutting unit is fixedly connected to the receiving unit. The receiving unit has the function of automatically replacing the material tray. The controller is fixedly installed on the outer surface of the chassis.

[0009] The chassis is used for the feeding unit, cutting unit, receiving unit and controller. The feeding unit is used for tension control of the plastic tape, the cutting unit is used for detection of damaged plastic tape and secondary feeding, the receiving unit is used for automatic replacement of the material tray and winding of the material tape, and the controller is used to control the start and stop of the feeding unit, cutting unit and receiving unit. When the plastic tape passes through the feeding unit, the feeding unit detects that the tension of the plastic tape changes during the conveying process, and adjusts the tension through the feeding unit to avoid winding during the receiving process. The cutting unit detects and cuts the surface defects of the plastic tape and performs subsequent secondary conveying of the plastic tape. Finally, the receiving unit automatically replaces the material tray after the winding is completed to improve work efficiency.

[0010] Furthermore, the feeding unit includes a tensioning wheel, a memory spring, a sliding rod, a sliding groove, a driving motor, a guide wheel, a return spring, a pressing roller and a rotating bracket. There are two sliding grooves, and the two sliding grooves are fixedly installed in parallel with each other in the chassis. One end of the sliding rod is fixedly connected to the tensioning wheel, and the other end is slidably installed in the sliding groove. One end of the memory spring is fixedly installed inside the sliding groove, and the other end is fixedly installed on the sliding rod. The fixed end of the driving motor is fixedly installed inside the chassis, and the output end of the driving motor is fixedly connected to the guide wheel. One end of the return spring is fixedly connected to the inner surface of one end of the chassis away from the horizontal base, and the other end is fixedly connected to the pressing roller. The pressing roller is fixedly connected to the rotating bracket, and the rotating bracket is rotatably installed on the outer surfaces of both ends of the guide wheels. The pressing roller is fixedly connected to the cutting unit.

[0011] When the plastic belt is conveyed from the two tensioning wheels, when the film pressure sensor on the tensioning wheel detects that the pressure is too small, the tension of the plastic belt being conveyed is loose, and the controller increases the current sent to the memory spring 1, and the memory spring 1 stretches, pushing the upper tensioning wheel to move to the left, and the lower tensioning wheel moves to the right under the push of the memory spring 1, thereby increasing the distance between the two tensioning wheels, thereby stretching the plastic belt and increasing the tension of the plastic belt to avoid entanglement when conveying to the material tray. When the film pressure sensor on the tensioning wheel detects that the pressure is too high, the controller reduces the current sent to the memory spring 1, and the memory spring 1 contracts to move the upper tensioning wheel to the right and the lower tensioning wheel to the left, thereby reducing the distance between the tensioning wheels and loosening the plastic belt to avoid excessive tension causing the plastic belt to break and damage, affecting the quality. The plastic belt then passes through the guide wheel and enters the feeding port of the cutting box for damage detection.

[0012] Furthermore, the cutting unit includes a pull rope, a cutting box, an electric telescopic rod, a telescopic tube, a magnet block, a cutter, a connecting plate, a guide rod, a conductive block, a photoresistor, an electromagnet, a second memory spring, a first electrode plate, a second electrode plate, a probe, a compression spring, a conveying wheel, a material guide trough and a fixed box. One end of the pull rope is fixedly connected to the pressing roller, and the other end is fixedly connected to the connecting plate through the cutting box feed port. The cutting box is provided with a feed port and a discharge port. The cutting box is fixedly installed inside the chassis. There are two electric telescopic rods, namely, an electric telescopic rod A and electric telescopic rod B, the electric telescopic rod is electrically connected to the first electrode plate, the fixed end of the electric telescopic rod A is fixedly mounted on the inner surface of the cutting box away from the horizontal base, the telescopic end of the electric telescopic rod A is fixedly connected to the connecting plate, the fixed end of the electric telescopic rod B is fixedly mounted on the inner surface of the cutting box close to the horizontal base, the telescopic end of the electric telescopic rod B is fixedly connected to the electromagnet, the fixed end of the telescopic tube is fixedly mounted on the output end of the electric telescopic rod A, the inner sides of the two telescopic ends of the telescopic tubes are connected by memory springs, and the magnet The block is fixedly installed on the outside of the cutter, and the cutter is fixedly connected to the telescopic end of the telescopic tube. A circular through hole is opened on the surface of the connecting plate, and a conductive ring is arranged inside the circular through hole. The connecting plate is slidably connected to the guide rod, one end of the guide rod is fixedly connected to the inner surface of the end of the cutting box away from the horizontal foundation, and the other end is fixedly connected to the conductive block. The photoresistor is fixedly installed on the outside of the fixed end of the telescopic tube, and the photoresistor is electrically connected to the memory spring. The first electrode plate is fixedly installed on the inner surface of one end of the fixed box close to the material guide trough, and the second electrode plate is fixedly installed on the inner surface of one end of the fixed box away from the material guide trough. The probe is connected to the fixed box through a compression spring, and the probe is made of copper. The conveying wheel is installed on the side of the material guide trough away from the horizontal foundation, and the conveying wheel is rotatably installed on the inner surface of the cutting box. The material guide trough is fixedly installed in the middle of the cutting box, and the fixed box is fixedly installed inside the cutting box. The second electrode plate is electrically connected to the electromagnet, and the conductive ring of the connecting plate is electrically connected to the conveying wheel. The cutting box is fixedly connected to the material receiving unit, and a light source is arranged on the inner surface of one end of the cutting box close to the horizontal foundation.

[0013] When the plastic tape is conveyed to the cutting box, the probe contacts the plastic tape, and when encountering a damaged part, on the one hand, the pressure on the top of the probe disappears, and the probe extends out of the fixed box under the action of the compression spring's own restoring force and contacts the first electrode plate. At this time, the current of the controller passes through the probe and flows through the first electrode plate, and is then conveyed to the electric telescopic rod. The upper electric telescopic rod extends, driving the connecting plate to slide downward on the guide rod, and the lower electric telescopic rod extends to drive the electromagnet to move upward to prepare for cutting. At the same time, the pull rope is stretched during the downward movement of the connecting plate, thereby driving the pressing roller to drive the rotating bracket to rotate downward while stretching the reset spring, pressing the plastic tape on the guide wheel downward, increasing the tension, and providing a certain tension for the cutter to cut the damaged plastic tape to ensure the cutting effect. On the other hand, when encountering a damaged or broken plastic tape, the gap created by the plastic tape increases the light intensity received by the photoresistor, thereby reducing the resistance value, thereby gradually increasing the current delivered to the memory spring 2, and the memory spring 2 expands and stretches to push The telescopic tube extends, so that the cutters move away from each other and the cutting distance is controlled until the probe contacts the complete plastic tape again. At this time, the probe moves downward to squeeze the compression spring and contact the second electrode plate. At this time, the light intensity received by the photoresistor becomes weaker again, and the resistance value increases, the second memory spring receives a smaller current and gradually shrinks. The current on the probe flows to the electromagnet through the second electrode plate, so that the electromagnet is energized with a polarity opposite to that of the magnet block, thereby attracting the cutter to move downward to cut the damaged plastic tape, thereby realizing corresponding cutting according to damaged plastic tapes of different lengths, avoiding the occurrence of missed cutting and over-cutting of damaged plastic tapes, and improving the quality of the plastic tape. While the electromagnet absorbs the magnet block and moves downward, it drives the conductive ring on the connecting plate to contact the conductive block. At this time, the conveying wheel receives the current and rotates a certain number of circles, thereby continuing to convey the plastic tape in the intact guide trough behind from the guide tube to the feed tray, thereby realizing secondary feeding, avoiding shutdown operations, and improving production efficiency.

[0014] Furthermore, the material receiving unit includes a containing cylinder, a blocking block, a cylinder, a tilting rod, an output motor, a pneumatic telescopic rod, a baffle, a pressing block, a material receiving cylinder, a hydraulic telescopic rod, a guide tube, a ring cylinder and a telescopic motor. The containing cylinder is fixedly installed inside the chassis, and an annular groove is provided at the bottom of the containing cylinder. The blocking block is fixedly connected to the cylinder, and the blocking block is installed at the annular groove of the containing cylinder. The tilting rod is composed of straight rods at both ends and an inclined rod in the middle. One end of the tilting rod is fixedly installed on the inner surface of the chassis away from the horizontal foundation, and the other end is fixedly installed on the inner surface of the chassis close to the horizontal foundation. The output motor is perpendicular to the tilting rod. The diagonal rod part of the rod is fixedly installed inside the chassis, the pneumatic telescopic rod is parallel to the diagonal rod part, one end is fixedly connected to the output end of the output motor, and the other end is fixedly connected to the ring tube, the fixed end of the hydraulic telescopic rod is fixedly installed inside the chassis, the telescopic end of the hydraulic telescopic rod is fixedly connected to the baffle, the pressing block is slidably installed on the baffle, the pressing block is fixedly connected to the telescopic motor through a straight rod, the receiving cylinder is fixedly installed on the inner surface of one end of the chassis close to the horizontal foundation, the guide tube is fixedly installed at the discharge port of the cutting box, the ring tube is composed of multiple groups of electric telescopic cylinders, and the telescopic motor is fixedly installed on the baffle.

[0015] When the plastic tape is conveyed to the material tray, the telescopic motor starts to contract, thereby driving the pressing block to press the plastic tape. At the same time, the controller controls the pneumatic telescopic rod to start extending, thereby driving the ring tube to extend to the inside of the inclined rod of the inclined rod. After the controller controls the electric telescopic tube to extend and contact the inner diameter of the material tray, the output motor starts to drive the material tray to rotate, thereby winding the plastic tape. After the winding of a material tray is completed, the controller controls the hydraulic telescopic rod to contract, thereby driving the baffle to move upward. Under the action of its own gravity, the material tray slides downward along the inclined rod and falls into the receiving barrel. At the same time, after the electric telescopic tube of the ring barrel contracts, the pneumatic telescopic rod also contracts. At this time, the controller controls the cylinder to contract and drive the blocking blocks to move away from each other, so that when the empty material tray in the containing barrel slides downward along the inclined rod, the controller controls the hydraulic telescopic rod to extend downward and drive the baffle to move down to block the empty tray, thereby completing the automatic replacement of the empty material tray and improving production efficiency.

[0016] Furthermore, a thin film pressure sensor is attached to the surface of the tension wheel, and there are two memory springs. The two memory springs are symmetrically installed with the midpoint of the distance between the two sliding grooves in the vertical direction.

[0017] In order to facilitate the detection of the tension of the plastic belt, the magnitude of the current transmitted to the memory spring is changed at the same time, thereby adjusting the tension of the plastic belt to the set value of the film pressure sensor, thereby avoiding damage and breakage of the plastic belt due to excessive tension, affecting product quality, or avoiding entanglement of the material tray when it is wound up, affecting production efficiency.

[0018] Furthermore, the height of the middle part of the material guiding trough is lower than that of the two sides, and a rectangular through groove is opened in the middle part.

[0019] The design of the middle part of the guide trough being lower than the two sides enables the plastic belt to automatically center during the secondary conveying process. When the plastic belt enters the guide trough, due to the higher sides, the plastic belt will gradually slide to the lower area in the middle under the action of gravity. This automatic centering function can ensure that the plastic belt remains in a relatively ideal center position during the conveying process, which is conducive to the subsequent precise entry into the winding process.

[0020] Furthermore, the tilting rod part is provided with a circular through groove, the minimum outer diameter of the ring tube is the same as the tilting rod inner diameter of the tilting rod, and the tilting rod part is composed of two unconnected rods.

[0021] In order to ensure that the extension of the electric telescopic cylinder in the ring cylinder is not hindered and contacts the inner diameter of the material tray, it is convenient to drive the material tray to rotate and complete the winding action of the material tray.

[0022] Furthermore, the outlet of the guide tube is located directly above the center of the pressing block in the vertical direction.

[0023] In order to ensure that the plastic tape accurately enters the reel winding position after coming out of the guide tube, thereby avoiding the situation where the reel cannot accurately wind up the plastic tape, the plastic tape is attached to the reel winding position under the pressure of the pressing block, thereby improving the reel winding efficiency.

[0024] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention changes the size of the current transmitted to the memory spring through the pressure value detected by the thin film pressure sensor, thereby adjusting the distance between the two tensioning wheels to achieve stretching and relaxing the plastic belt to the preset pressure value, avoiding the entanglement of the plastic belt when it is conveyed to the material tray when the tension is too small, and avoiding the breakage of the plastic belt due to excessive tension, which affects the product quality.

[0025] 2. The present invention makes the pressure on the top of the probe disappear, and the probe contacts the first electrode plate, and transmits current to the electric telescopic rod, so that the connecting plate slides downward on the guide rod, and the electric telescopic rod below extends to drive the electromagnet to move upward to prepare for cutting. At the same time, the connecting plate stretches the pull rope, so that the pressing roller rotates downward to press the plastic belt on the guide wheel downward, thereby increasing the tension and providing a certain tension for the cutter to cut the damaged plastic belt to ensure the cutting effect. At the same time, when the notch of the plastic belt is generated, the light intensity received by the photoresistor changes, which changes the current transmitted to the second memory spring, and controls the cutting distance of the cutter. The two electrode plates are in contact, and the current flows to the electromagnet through the second electrode plate, causing the electromagnet to attract the magnet block, thereby attracting the cutter to move downward to cut the damaged plastic tape, thereby realizing corresponding cutting according to damaged plastic tapes of different lengths, avoiding missed cutting and excessive cutting of damaged plastic tapes, and improving the quality of the plastic tape. When the magnet block moves downward, the conductive ring on the connecting plate is driven to contact the conductive block, causing the conveying wheel to rotate a certain number of circles, thereby continuing to convey the plastic tape in the intact material guide trough at the back from the guide tube to the feed tray, thereby realizing secondary feeding, avoiding shutdown operations, and improving production efficiency.

[0026] 3. In the present invention, when the plastic tape is conveyed to the material tray, the pressing block presses the plastic tape, and at the same time, the pneumatic telescopic rod extends to the inside of the tilting rod. After the electric telescopic cylinder extends and contacts the inner diameter of the material tray, it drives the material tray to rotate, thereby winding the plastic tape. When the winding of one material tray is completed, the controller controls the hydraulic telescopic rod to contract, thereby driving the baffle to move upward. Under the action of its own gravity, the material tray slides downward along the tilting rod and falls into the receiving barrel. At the same time, the cylinder contracts and drives the blocking blocks away from each other, so that when the empty material tray in the containing barrel slides downward along the tilting rod, the hydraulic telescopic rod extends downward and drives the baffle to move downward to block the empty tray, thereby completing the automatic replacement of the empty material tray and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall appearance of a plastic tape winding mechanism with automatic loading and unloading functions according to the present invention; Figure 2 It is a schematic diagram of the internal structure of a chassis of a plastic tape winding mechanism with automatic loading and unloading functions according to the present invention; Figure 3 It is a schematic diagram of the installation position structure of part of the receiving unit of a plastic tape winding mechanism with automatic loading and unloading functions of the present invention; Figure 4 It is a schematic diagram of the installation position structure of a holding drum, a blocking block, a cylinder and a tilting rod of a plastic tape winding mechanism with automatic loading and unloading functions of the present invention; Figure 5 A schematic diagram of the internal structure of a plastic tape winding mechanism with automatic loading and unloading functions from another perspective of the present invention; Figure 6 The invention provides a plastic tape winding mechanism with automatic loading and unloading functions. Figure 5 A schematic diagram of the structure of the partial enlarged view at center A; Figure 7 The invention provides a plastic tape winding mechanism with automatic loading and unloading functions. Figure 5 The structural schematic diagram of the partial enlarged view at B in the middle; Figure 8 This is a schematic diagram of the internal structure of a cutting box of a plastic tape winding mechanism with automatic loading and unloading functions according to the present invention; Fig. 9 It is a schematic diagram of the state structure when a probe of a plastic tape winding mechanism with automatic loading and unloading functions detects that the plastic tape is damaged; Fig.10 It is a schematic diagram of the state structure of a plastic tape winding mechanism with automatic loading and unloading functions of the present invention when the probe does not detect the damage of the plastic tape; Fig.11 The invention provides a plastic tape winding mechanism with automatic loading and unloading functions. Figure 8 The structural schematic diagram of the partial enlarged view at C in the middle; Fig.12 It is a schematic diagram of the installation position structure of the conveying wheel and the material guide trough of a plastic tape winding mechanism with automatic loading and unloading functions according to the present invention, as viewed from the side; Fig.13 This is a schematic diagram of the installation position structure of a pneumatic telescopic rod and a tilting rod of a plastic tape winding mechanism with automatic loading and unloading functions according to the present invention; Fig.14 The present invention is a schematic structural diagram of a material receiving unit of a plastic tape winding mechanism with automatic loading and unloading functions.

[0028] In the figure: 1, chassis; 2, feeding unit; 21, tension wheel; 22, memory spring 1; 23, slide bar; 24, slide slot; 25, drive motor; 26, guide wheel; 27, return spring; 28, press roller; 29, rotating bracket; 3, cutting unit; 31, pull rope; 32, cutting box; 33, electric telescopic rod; 34, telescopic tube; 35, magnet block; 36, cutter; 37, connecting plate; 38, guide rod; 39, conductive block; 310, photoresistor; 311, electromagnet; 312, memory Spring 2; 313, first electrode plate; 314, second electrode plate; 315, probe; 316, compression spring; 317, conveying wheel; 318, material guide trough; 319, fixed box; 4, material receiving unit; 41, holding cylinder; 42, blocking block; 43, cylinder; 44, tilting rod; 45, output motor; 46, pneumatic telescopic rod; 47, baffle; 48, pressing block; 49, material receiving cylinder; 410, hydraulic telescopic rod; 411, guide tube; 412, ring cylinder; 413, telescopic motor; 5, controller. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example: Figure 1-Figure 14 As shown, the present invention provides a technical solution: like Figure 1 , 2 As shown, a plastic tape winding mechanism with automatic loading and unloading functions includes a chassis 1, a feeding unit 2, a cutting unit 3, a receiving unit 4 and a controller 5. The chassis 1 is placed on a horizontal foundation, and a feeding port is provided on one end face of the chassis 1 close to the horizontal foundation. The feeding unit 2 is fixedly installed inside the chassis 1, and the cutting unit 3 is fixedly installed inside the chassis 1. The feeding unit 2 and the cutting unit 3 are fixedly connected, and the receiving unit 4 is fixedly installed inside the chassis 1. The cutting unit 3 has the function of cutting damaged plastic tape and secondary feeding. The cutting unit 3 and the receiving unit 4 are fixedly connected. The receiving unit 4 has the function of automatically replacing the material tray, and the controller 5 is fixedly installed on the outer surface of the chassis 1.

[0031] The chassis 1 is used for the feeding unit 2, the cutting unit 3, the receiving unit 4 and the controller 5. The feeding unit 2 is used for the tension control of the plastic tape, the cutting unit 3 is used for the detection and secondary feeding of the damaged plastic tape, the receiving unit 4 is used for the automatic replacement of the material tray and the winding of the material tape, and the controller 5 is used to control the start and stop of the feeding unit 2, the cutting unit 3 and the receiving unit 4. When the plastic tape passes through the feeding unit 2, when the feeding unit 2 detects that the tension of the plastic tape changes during the conveying process, the feeding unit 2 adjusts the tension to avoid winding during the receiving process, and the cutting unit 3 detects and cuts the surface defects of the plastic tape and performs the subsequent secondary conveying of the plastic tape. Finally, the receiving unit 4 automatically replaces the material tray after the winding is completed to improve the work efficiency.

[0032] like Figure 4 , 6 As shown in , 7, the feeding unit 2 includes a tensioning wheel 21, a memory spring 22, a slide bar 23, a sliding groove 24, a driving motor 25, a guide wheel 26, a return spring 27, a pressing roller 28 and a rotating bracket 29. There are two sliding grooves 24, and the two sliding grooves 24 are fixedly installed in the chassis 1 in parallel with each other. One end of the slide bar 23 is fixedly connected to the tensioning wheel 21, and the other end is slidably installed in the sliding groove 24. One end of the memory spring 22 is fixedly installed inside the sliding groove 24, and the other end is fixedly installed on the slide bar 23. The fixed end of the driving motor 25 is fixedly installed inside the chassis 1, and the output end of the driving motor 25 is fixedly connected to the guide wheel 26. One end of the return spring 27 is fixedly connected to the inner surface of one end of the chassis 1 away from the horizontal base, and the other end is fixedly connected to the pressing roller 28. The pressing roller 28 is fixedly connected to the rotating bracket 29. The rotating bracket 29 is rotatably installed on the outer surfaces of both ends of the guide wheel 26, and the pressing roller 28 is fixedly connected to the cutting unit 3.

[0033] When the plastic belt is being transported from the two tensioning wheels 21, when the film pressure sensor on the tensioning wheel 21 detects that the pressure is too small, the tension of the transported plastic belt is relatively loose, and the controller 5 increases the current transmitted to the memory spring 1 22, the memory spring 1 22 stretches, and pushes the upper tensioning wheel 21 to move to the left, and the lower tensioning wheel 21 moves to the right under the push of the memory spring 1 22, thereby increasing the distance between the two tensioning wheels 21, thereby stretching the plastic belt, increasing the tension of the plastic belt, and avoiding entanglement when transporting to the material tray. When the film pressure sensor on the tensioning wheel 21 detects that the pressure is too high, the controller 5 reduces the current to the memory spring 1 22, the memory spring 1 22 contracts to move the upper tensioning wheel 21 to the right, and the lower tensioning wheel 21 moves to the left, thereby reducing the distance between the tensioning wheels 21, loosening the plastic belt, and avoiding excessive tension causing the plastic belt to break and damage, affecting the quality. Subsequently, the plastic belt passes through the guide wheel 26 and enters the inlet of the cutting box 32 for damage detection.

[0034] like Figure 5, 8 As shown in Figures 9, 10, 11 and 12, the cutting unit 3 includes a pull rope 31, a cutting box 32, an electric telescopic rod 33, a telescopic tube 34, a magnet block 35, a cutter 36, a connecting plate 37, a guide rod 38, a conductive block 39, a photoresistor 310, an electromagnet 311, a memory spring 2 312, a first electrode plate 313, a second electrode plate 314, a probe 315, a compression spring 316, a conveying wheel 317, a material guide trough 318 and a fixed box 319. One end of the pull rope 31 is fixedly connected to the pressing roller 28, and the other end is fixedly connected to the connecting plate 37 through the feed port of the cutting box 32. The cutting box 32 is provided with a feed port and a discharge port. The cutting box 32 is fixedly installed Installed inside the chassis 1, there are two electric telescopic rods 33, namely, the electric telescopic rod 33A and the electric telescopic rod 33B, the electric telescopic rod 33 is electrically connected to the first electrode plate 313, the fixed end of the electric telescopic rod 33A is fixedly installed on the inner surface of the end of the cutting box 32 away from the horizontal foundation, the telescopic end of the electric telescopic rod 33A is fixedly connected to the connecting plate 37, the fixed end of the electric telescopic rod 33B is fixedly installed on the inner surface of the end of the cutting box 32 close to the horizontal foundation, the telescopic end of the electric telescopic rod 33B is fixedly connected to the electromagnet 311, the fixed end of the telescopic tube 34 is fixedly installed on the output end of the electric telescopic rod 33A, and the inner sides of the telescopic ends of the two telescopic tubes 34 are connected by memory springs. The connecting plate 37 is provided with a circular through hole, and a conductive ring is arranged inside the circular through hole. The connecting plate 37 is slidably connected with the guide rod 38. One end of the guide rod 38 is fixedly connected with the inner surface of the end of the cutting box 32 away from the horizontal foundation, and the other end is fixedly connected with the conductive block 39. The photoresistor 310 is fixedly installed on the outer side of the fixed end of the telescopic tube 34. The photoresistor 310 is electrically connected with the memory spring 2 312. The first electrode plate 313 is fixedly installed on the inner surface of one end of the fixed box 319 close to the guide groove 318. The second electrode plate 314 is fixedly installed on the inner surface of the fixed box 319 close to the guide groove 318. It is installed on the inner surface of the fixed box 319 away from the material guide trough 318. The probe 315 is connected to the fixed box 319 through a compression spring 316. The probe 315 is made of copper. The conveying wheel 317 is installed on the side of the material guide trough 318 away from the horizontal foundation. The conveying wheel 317 is rotatably installed on the inner surface of the cutting box 32. The material guide trough 318 is fixedly installed in the middle of the cutting box 32. The fixed box 319 is fixedly installed inside the cutting box 32. The second electrode plate 314 is electrically connected to the electromagnet 311. The conductive ring of the connecting plate 37 is electrically connected to the conveying wheel 317. The cutting box 32 is fixedly connected to the material receiving unit 4. A light source is provided on the inner surface of the cutting box 32 close to the horizontal foundation.

[0035] When the plastic tape is conveyed to the cutting box 32, the probe 315 contacts the plastic tape. When encountering a damaged part, on the one hand, the pressure on the top of the probe 315 disappears, and the probe 315 extends out of the fixed box 319 under the action of the restoring force of the compression spring 316 and contacts the first electrode plate 313. At this time, the current of the controller 5 passes through the probe 315 and flows through the first electrode plate 313, and is then conveyed to the electric telescopic rod 33. The upper electric telescopic rod 33 extends, driving the connecting plate 37 to slide downward on the guide rod 38, and the lower electric telescopic rod 33 extends, driving the electromagnet 311 to move upward. The connecting plate 37 is in motion to prepare for cutting. At the same time, the pull rope 31 is stretched during the downward movement of the connecting plate 37, thereby driving the pressing roller 28 to drive the rotating bracket 29 to rotate downward and stretching the reset spring 27, pressing the plastic belt on the guide wheel 26 downward to increase the tension, and providing a certain tension for the cutter 36 to cut the damaged plastic belt to ensure the cutting effect. On the other hand, when encountering a damaged or broken plastic belt, the gap generated by the plastic belt increases the light intensity received by the photoresistor 310, thereby reducing the resistance value, so that the current delivered to the memory spring 2 312 gradually increases, and the memory spring 2 312 expands. The extension pushes the telescopic tube 34 to extend, so that the cutters 36 move away from each other and control the cutting distance until the probe 315 contacts the complete plastic tape again. At this time, the probe 315 moves downward to squeeze the compression spring 316 and contact the second electrode plate 314. At this time, the light intensity received by the photoresistor 310 becomes weaker again, and the resistance value increases. The memory spring 2 312 receives a smaller current and gradually shrinks. The current on the probe 315 flows through the second electrode plate 314 to the electromagnet 311, so that the electromagnet 311 is energized and presents the opposite polarity to the magnet block 35, thereby attracting the cutter 36 to move downward. The damaged plastic tape is cut, thereby achieving corresponding cutting according to the damaged plastic tape of different lengths, avoiding the occurrence of missed cutting and over-cutting of the damaged plastic tape, and improving the quality of the plastic tape. While the electromagnet 311 adsorbs the magnet block 35 and moves downward, it drives the conductive ring on the connecting plate 37 to contact the conductive block 39. At this time, the conveying wheel 317 receives the current and rotates a certain number of circles, so that the plastic tape in the intact guide groove 318 at the back continues to be conveyed from the guide tube 411 to the feed tray, thereby realizing secondary feeding, avoiding shutdown operations, and improving production efficiency.

[0036] like Figure 3 , 4As shown in Figures 13 and 14, the material receiving unit 4 includes a holding cylinder 41, a blocking block 42, a cylinder 43, a tilting rod 44, an output motor 45, a pneumatic telescopic rod 46, a baffle 47, a pressing block 48, a material receiving cylinder 49, a hydraulic telescopic rod 410, a guide tube 411, a ring cylinder 412 and a telescopic motor 413. The holding cylinder 41 is fixedly installed inside the chassis 1, and an annular groove is provided at the bottom of the holding cylinder 41. The blocking block 42 is fixedly connected to the cylinder 43, and the blocking block 42 is installed at the annular groove of the holding cylinder 41. The tilting rod 44 consists of straight rods at both ends and an inclined rod in the middle. One end of the tilting rod 44 is fixedly installed on the inner surface of the chassis 1 away from the horizontal foundation, and the other end is fixedly installed on the inner surface of the chassis 1 close to the horizontal foundation. The inclined rod part perpendicular to the inclined rod 44 is fixedly installed inside the chassis 1, one end of the inclined rod part of the pneumatic telescopic rod 46 parallel to the inclined rod 44 is fixedly connected to the output end of the output motor 45, and the other end is fixedly connected to the ring tube 412, the fixed end of the hydraulic telescopic rod 410 is fixedly installed inside the chassis 1, the telescopic end of the hydraulic telescopic rod 410 is fixedly connected to the baffle 47, the pressing block 48 is slidably installed on the baffle 47, the pressing block 48 is fixedly connected to the telescopic motor 413 through a straight rod, the receiving cylinder 49 is fixedly installed on the inner surface of one end of the chassis 1 close to the horizontal base, the guide tube 411 is fixedly installed at the discharge port of the cutting box 32, the ring tube 412 is composed of a plurality of sets of electric telescopic cylinders, and the telescopic motor 413 is fixedly installed on the baffle 47.

[0037] When the plastic tape is delivered to the material tray, the telescopic motor 413 starts to contract, thereby driving the pressing block 48 to press the plastic tape. At the same time, the controller 5 controls the pneumatic telescopic rod 46 to start extending, thereby driving the ring tube 412 to extend to the inside of the inclined rod of the inclined rod 44. After the controller 5 controls the electric telescopic tube to extend and contact the inner diameter of the material tray, the output motor 45 starts to drive the material tray to rotate, thereby winding the plastic tape. After the winding of a material tray is completed, the controller 5 controls the hydraulic telescopic rod 410 to contract, thereby driving the baffle 47 moves upward, and the material tray slides downward along the inclined rod 44 under the action of its own gravity and falls into the receiving barrel 49. At the same time, the electric telescopic cylinder of the ring cylinder 412 shrinks and the pneumatic telescopic rod 46 also shrinks. At this time, the controller 5 controls the cylinder 43 to shrink and drive the blocking blocks 42 to move away from each other, so that when the empty material tray in the containing barrel 41 slides downward along the inclined rod 44, the controller 5 controls the hydraulic telescopic rod 410 to extend downward and drive the baffle plate 47 to move downward to block the empty tray, thereby completing the automatic replacement of the empty material tray and improving the production efficiency.

[0038] like Figure 5 , 6 As shown, a thin film pressure sensor is attached to the surface of the tension wheel 21, and there are two memory springs 22. The two memory springs 22 are symmetrically installed with the midpoint of the two sliding grooves 24 in the vertical direction.

[0039] In order to facilitate the detection of the tension of the plastic belt, the magnitude of the current transmitted to the memory spring 22 is changed at the same time, thereby adjusting the tension of the plastic belt to the set value of the film pressure sensor, thereby avoiding excessive tension causing damage and breakage of the plastic belt, affecting product quality, or too little tension causing entanglement when the material tray is wound up, affecting production efficiency.

[0040] like Fig.12 As shown, the height of the middle portion of the material guide groove 318 is lower than that of the two sides, and a rectangular through groove is opened in the middle portion.

[0041] The design of the middle part of the guide trough 318 being lower than the two sides enables the plastic belt to automatically center during the secondary conveying process. When the plastic belt enters the guide trough 318, due to the higher sides, the plastic belt will gradually slide to the lower area in the middle under the action of gravity. This automatic centering function can ensure that the plastic belt remains in a relatively ideal center position during the conveying process, which is conducive to the subsequent precise entry into the winding process.

[0042] like Fig.13 , 14 As shown, the inclined rod part of the inclined rod 44 is provided with a circular through groove, the minimum outer diameter of the ring tube 412 is the same as the inclined rod inner diameter of the inclined rod 44, and the inclined rod part of the inclined rod 44 is composed of two unconnected rods.

[0043] In order to ensure that the extension of the electric telescopic cylinder in the ring cylinder 412 is not hindered and contacts the inner diameter of the material tray, it is convenient to drive the material tray to rotate and complete the winding action of the material tray.

[0044] like Figure 2 , 5 As shown, the outlet of the guide tube 411 is located directly above the center of the pressing block 48 in the vertical direction.

[0045] In order to ensure that the plastic tape accurately enters the reel winding position after coming out of the guide tube 411, thereby avoiding the situation where the reel cannot accurately reel the plastic tape, the plastic tape is attached to the reel winding position under the pressure of the pressing block 48, thereby improving the reel winding efficiency.

[0046] Working principle of the present invention: When the plastic belt is being transported from the two tensioning wheels 21, when the film pressure sensor on the tensioning wheel 21 detects that the pressure is too small, the tension of the transported plastic belt is relatively loose, and the controller 5 increases the current transmitted to the memory spring 1 22, the memory spring 1 22 stretches, and pushes the upper tensioning wheel 21 to move to the left, and the lower tensioning wheel 21 moves to the right under the push of the memory spring 1 22, thereby increasing the distance between the two tensioning wheels 21, thereby stretching the plastic belt, increasing the tension of the plastic belt, and avoiding entanglement when transporting to the material tray. When the film pressure sensor on the tensioning wheel 21 detects that the pressure is too high, the controller 5 reduces the current to the memory spring 1 22, the memory spring 1 22 contracts to move the upper tensioning wheel 21 to the right, and the lower tensioning wheel 21 moves to the left, thereby reducing the distance between the tensioning wheels 21, loosening the plastic belt, and avoiding excessive tension causing the plastic belt to break and damage, affecting the quality. Subsequently, the plastic belt passes through the guide wheel 26 and enters the inlet of the cutting box 32 for damage detection.

[0047] When the plastic tape is conveyed to the cutting box 32, the probe 315 contacts the plastic tape. When encountering a damaged part, on the one hand, the pressure on the top of the probe 315 disappears, and the probe 315 extends out of the fixed box 319 under the action of the restoring force of the compression spring 316 and contacts the first electrode plate 313. At this time, the current of the controller 5 passes through the probe 315 and flows through the first electrode plate 313, and is then conveyed to the electric telescopic rod 33. The upper electric telescopic rod 33 extends, driving the connecting plate 37 to slide downward on the guide rod 38, and the lower electric telescopic rod 33 extends, driving the electromagnet 311 to move upward. The connecting plate 37 is in motion to prepare for cutting. At the same time, the pull rope 31 is stretched during the downward movement of the connecting plate 37, thereby driving the pressing roller 28 to drive the rotating bracket 29 to rotate downward and stretching the reset spring 27, pressing the plastic belt on the guide wheel 26 downward to increase the tension, and providing a certain tension for the cutter 36 to cut the damaged plastic belt to ensure the cutting effect. On the other hand, when encountering a damaged or broken plastic belt, the gap generated by the plastic belt increases the light intensity received by the photoresistor 310, thereby reducing the resistance value, so that the current delivered to the memory spring 2 312 gradually increases, and the memory spring 2 312 expands. The extension pushes the telescopic tube 34 to extend, so that the cutters 36 move away from each other and control the cutting distance until the probe 315 contacts the complete plastic tape again. At this time, the probe 315 moves downward to squeeze the compression spring 316 and contact the second electrode plate 314. At this time, the light intensity received by the photoresistor 310 becomes weaker again, and the resistance value increases. The memory spring 2 312 receives a smaller current and gradually shrinks. The current on the probe 315 flows through the second electrode plate 314 to the electromagnet 311, so that the electromagnet 311 is energized and presents the opposite polarity to the magnet block 35, thereby attracting the cutter 36 to move downward. The damaged plastic tape is cut, thereby achieving corresponding cutting according to the damaged plastic tape of different lengths, avoiding the occurrence of missed cutting and over-cutting of the damaged plastic tape, and improving the quality of the plastic tape. While the electromagnet 311 adsorbs the magnet block 35 and moves downward, it drives the conductive ring on the connecting plate 37 to contact the conductive block 39. At this time, the conveying wheel 317 receives the current and rotates a certain number of circles, so that the plastic tape in the intact guide groove 318 at the back continues to be conveyed from the guide tube 411 to the feed tray, thereby realizing secondary feeding, avoiding shutdown operations, and improving production efficiency.

[0048] When the plastic tape is delivered to the material tray, the telescopic motor 413 starts to contract, thereby driving the pressing block 48 to press the plastic tape. At the same time, the controller 5 controls the pneumatic telescopic rod 46 to start extending, thereby driving the ring tube 412 to extend to the inside of the inclined rod of the inclined rod 44. After the controller 5 controls the electric telescopic tube to extend and contact the inner diameter of the material tray, the output motor 45 starts to drive the material tray to rotate, thereby winding the plastic tape. After the winding of a material tray is completed, the controller 5 controls the hydraulic telescopic rod 410 to contract, thereby driving the baffle 47 moves upward, and the material tray slides downward along the inclined rod 44 under the action of its own gravity and falls into the receiving barrel 49. At the same time, the electric telescopic cylinder of the ring cylinder 412 shrinks and the pneumatic telescopic rod 46 also shrinks. At this time, the controller 5 controls the cylinder 43 to shrink and drive the blocking blocks 42 to move away from each other, so that when the empty material tray in the containing barrel 41 slides downward along the inclined rod 44, the controller 5 controls the hydraulic telescopic rod 410 to extend downward and drive the baffle plate 47 to move downward to block the empty tray, thereby completing the automatic replacement of the empty material tray and improving the production efficiency.

[0049] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A plastic tape winding mechanism with automatic loading and unloading functions, characterized in that: A plastic tape winding mechanism with automatic loading and unloading functions comprises a chassis (1), a feeding unit (2), a cutting unit (3), a receiving unit (4) and a controller (5), wherein the chassis (1) is placed on a horizontal base, a feeding port is provided on one end face of the chassis (1) close to the horizontal base, the feeding unit (2) is fixedly mounted inside the chassis (1), the cutting unit (3) is fixedly mounted inside the chassis (1), the feeding unit (2) and the cutting unit (3) are fixedly connected, the receiving unit (4) is fixedly mounted inside the chassis (1), the cutting unit (3) has the functions of cutting damaged plastic tape and secondary feeding, the cutting unit (3) and the receiving unit (4) are fixedly connected, the receiving unit (4) has the function of automatically replacing a material tray, and the controller (5) is fixedly mounted on the outer surface of the chassis (1).

2. The plastic tape winding mechanism with automatic loading and unloading functions according to claim 1 is characterized in that: The feeding unit (2) comprises a tensioning wheel (21), a memory spring (22), a sliding rod (23), a sliding groove (24), a driving motor (25), a guide wheel (26), a return spring (27), a pressing roller (28) and a rotating bracket (29), wherein the sliding grooves (24) are two and the two sliding grooves (24) are fixedly installed in parallel with each other in the chassis (1), one end of the sliding rod (23) is fixedly connected to the tensioning wheel (21), and the other end is slidably installed in the sliding groove (24), and one end of the memory spring (22) is fixedly installed in the sliding groove (24). The driving motor (25) has one end fixedly mounted on the chassis (1), and the other end is fixedly mounted on the slide bar (23); the driving motor (25) has a fixed end fixedly mounted inside the chassis (1); the output end of the driving motor (25) is fixedly connected to the guide wheel (26); one end of the return spring (27) is fixedly connected to the inner surface of one end of the chassis (1) away from the horizontal base, and the other end is fixedly connected to the pressing roller (28); the pressing roller (28) is fixedly connected to the rotating bracket (29); the rotating bracket (29) is rotatably mounted on the outer surfaces of both ends of the guide wheel (26); and the pressing roller (28) is fixedly connected to the cutting unit (3).

3. The plastic tape winding mechanism with automatic loading and unloading functions according to claim 2 is characterized in that: The cutting unit (3) comprises a pull rope (31), a cutting box (32), an electric telescopic rod (33), a telescopic tube (34), a magnet block (35), a cutter (36), a connecting plate (37), a guide rod (38), a conductive block (39), a photoresistor (310), an electromagnet (311), a second memory spring (312), a first electrode plate (313), a second electrode plate (314), a probe (315), a compression spring (316), a conveying wheel (317), a material guide trough (318) and a fixing box (319). One end of the pull rope (31) is fixedly connected to the pressing roller (28), and the other end is fixedly connected to the connecting plate (37) via a material inlet of the cutting box (32). The cutting box (32) is provided with a material inlet. The cutting box (32) is fixedly mounted inside the chassis (1), the electric telescopic rods (33) are two, namely, the electric telescopic rod (33) A and the electric telescopic rod (33) B, the electric telescopic rod (33) is electrically connected to the first electrode plate (313), the fixed end of the electric telescopic rod (33) A is fixedly mounted on the inner surface of the cutting box (32) away from the horizontal base, the telescopic end of the electric telescopic rod (33) A is fixedly connected to the connecting plate (37), the fixed end of the electric telescopic rod (33) B is fixedly mounted on the inner surface of the cutting box (32) close to the horizontal base, the telescopic end of the electric telescopic rod (33) B is fixedly connected to the electromagnet (311), and the fixed end of the telescopic tube (34) is fixedly mounted. The electric telescopic rod (33) is mounted on the output end of the electric telescopic rod (33). The inner sides of the telescopic ends of the two telescopic tubes (34) are connected by a memory spring (312). The magnet block (35) is fixedly mounted on the outer side of the cutter (36). The cutter (36) is fixedly connected to the telescopic end of the telescopic tube (34). The connecting plate (37) has a circular through hole on its surface. A conductive ring is arranged inside the circular through hole. The connecting plate (37) is slidably connected to the guide rod (38). One end of the guide rod (38) is fixedly connected to the inner surface of one end of the cutting box (32) away from the horizontal base, and the other end is fixedly connected to the conductive block (39). The photoresistor (310) is fixedly mounted on the outer side of the fixed end of the telescopic tube (34). The photoresistor (310) is fixedly connected to the memory spring (312). (312) is electrically connected, the first electrode plate (313) is fixedly mounted on the inner surface of one end of the fixed box (319) close to the material guide trough (318), the second electrode plate (314) is fixedly mounted on the inner surface of one end of the fixed box (319) away from the material guide trough (318), the probe (315) is connected to the fixed box (319) through a compression spring (316), the probe (315) is made of copper, the conveying wheel (317) is mounted on the side of the material guide trough (318) away from the horizontal base, the conveying wheel (317) is rotatably mounted on the inner surface of the cutting box (32), the material guide trough (318) is fixedly mounted in the middle of the cutting box (32), and the fixed box (319) is fixedly mounted inside the cutting box (32),The second electrode plate (314) is electrically connected to the electromagnet (311), the conductive ring of the connecting plate (37) is electrically connected to the conveying wheel (317), the cutting box (32) is fixedly connected to the material receiving unit (4), and a light source is provided on the inner surface of one end of the cutting box (32) close to the horizontal base.

4. The plastic tape winding mechanism with automatic loading and unloading functions according to claim 3 is characterized in that: The material receiving unit (4) comprises a containing cylinder (41), a blocking block (42), a cylinder (43), a tilting rod (44), an output motor (45), a pneumatic telescopic rod (46), a baffle (47), a pressing block (48), a material receiving cylinder (49), a hydraulic telescopic rod (410), a guide tube (411), a ring cylinder (412) and a telescopic motor (413). The containing cylinder (41) is fixedly mounted inside the chassis (1). An annular groove is provided at the bottom of the containing cylinder (41). The blocking block (42) is fixedly connected to the cylinder (43). The blocking block (42) is mounted at the annular groove of the containing cylinder (41). The tilting rod (44) consists of straight rods at two ends and an inclined rod in the middle. One end of the tilting rod (44) is fixedly mounted on the inner surface of the chassis (1) away from the horizontal base, and the other end is fixedly mounted on the inner surface of the chassis (1) close to the horizontal base. The output motor (45) ) is fixedly mounted inside the chassis (1) at a portion of the inclined rod perpendicular to the inclined rod (44); one end of the pneumatic telescopic rod (46) is fixedly connected to the output end of the output motor (45) and the other end is fixedly connected to the ring tube (412); the fixed end of the hydraulic telescopic rod (410) is fixedly mounted inside the chassis (1); the telescopic end of the hydraulic telescopic rod (410) is fixedly connected to the baffle (47); the pressing block (48) is slidably mounted on the baffle (47); the pressing block (48) is fixedly connected to the telescopic motor (413) via a straight rod; the receiving cylinder (49) is fixedly mounted on the inner surface of one end of the chassis (1) close to the horizontal base; the guide tube (411) is fixedly mounted at the discharge port of the cutting box (32); the ring tube (412) is composed of a plurality of sets of electric telescopic cylinders; and the telescopic motor (413) is fixedly mounted on the baffle (47).

5. The plastic tape winding mechanism with automatic loading and unloading functions according to claim 2 is characterized in that: A thin film pressure sensor is attached to the surface of the tension wheel (21), and there are two memory springs (22). The two memory springs (22) are symmetrically installed at the midpoint of the distance in the vertical direction with two sliding grooves (24).

6. The plastic tape winding mechanism with automatic loading and unloading functions according to claim 3 is characterized in that: The height of the middle portion of the material guide trough (318) is lower than that of the two sides, and a rectangular through groove is opened in the middle portion.

7. The plastic tape winding mechanism with automatic loading and unloading functions according to claim 4 is characterized in that: The minimum outer diameter of the annular cylinder (412) is the same as the inner diameter of the inclined rod of the inclined rod (44); the inclined rod portion of the inclined rod (44) is composed of two unconnected rods.

8. The plastic tape winding mechanism with automatic loading and unloading functions according to claim 4 is characterized in that: The outlet of the guide tube (411) is located directly above the center of the pressing block (48) in the vertical direction.

Images