A device for producing recycled plastic chips based on thermoplastic extrusion and a working method thereof

Abstract

The application relates to the technical field of regenerated plastic preparation, in particular to a regenerated plastic production slicing device based on thermoplastic extrusion and a working method thereof. The regenerated plastic production slicing device based on thermoplastic extrusion comprises a cooling tank, the tail end of the cooling tank is fixedly provided with a receiving hopper, the receiving hopper is provided with a placing plate, two groups of lifting plates are slidably arranged between the placing plate and the cooling tank, and a cutting knife is rotatably installed between the two groups of lifting plates; a transmission assembly is arranged on the cooling tank and comprises a driving structure and a passive elastic structure, the driving structure and the passive elastic structure can transport thermoplastic strips with different diameters; a cutting mechanism comprises a reciprocating assembly arranged on the placing plate and a deflection assembly installed on the lifting plate, the reciprocating assembly can drive the cutting knife to reciprocatingly ascend and descend along the vertical direction of the space of the cooling tank, and when the cutting knife moves to the end of the reciprocating stroke, the deflection assembly acts to drive the cutting knife to rotate relative to the lifting plate.

Description

Technical Field

[0001] This invention relates to the field of recycled plastic preparation technology, specifically to a device for producing recycled plastic chips based on thermoplastic extrusion and its working method. Background Technology

[0002] Plastic products are widely used in our daily lives and agricultural production. When these plastic products reach the end of their service life, they will be discarded as waste plastic. After recycling, these waste plastics can be made into plastic pellets to meet the production needs of agricultural film factories and shoe factories.

[0003] Current plastic pelletizing methods include underwater cutting, water ring cutting, and dry cutting. All of these methods involve immediate cutting of the machine-extruded thermoplastic strip, meaning that cutting and extrusion occur simultaneously. However, in this working mode, between the time the cutting blade completes one cut and before the second cut, the cutting blade will compress the extruded thermoplastic strip, resulting in uneven pelletizing of the cut thermoplastic strip and affecting the cutting quality. Summary of the Invention

[0004] The purpose of this invention is to provide a device for producing recycled plastic chips based on thermoplastic extrusion and its operating method, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A device for producing slices from recycled plastics based on thermoplastic extrusion includes a cooling tank, a receiving funnel fixedly installed at the end of the cooling tank, a placement plate installed on the receiving funnel, two sets of lifting plates slidably arranged between the placement plate and the cooling tank, and a cutting blade rotatably installed between the two sets of lifting plates.

[0007] A transport assembly, disposed on the cooling tank, includes an active structure and a passive elastic structure, wherein the active structure and the passive elastic structure are capable of transporting thermoplastic strips of different diameters;

[0008] The cutting mechanism includes a reciprocating assembly disposed on the placement plate and a deflection assembly mounted on the lifting plate. The reciprocating assembly can drive the cutting blade to reciprocate and move up and down in the vertical direction of the space of the cooling tank. When the cutting blade moves to the end of the reciprocating stroke, the deflection assembly can drive the cutting blade to rotate relative to the lifting plate.

[0009] As a further aspect of the present invention: the active structure includes an active roller rotatably mounted on the cooling tank, one end of which is fixedly connected to the output shaft of a first motor fixedly mounted on the outer wall of the cooling tank.

[0010] As a further embodiment of the present invention: the passive elastic structure includes a passive roller disposed on the cooling tank, a sleeve ring rotatably mounted on the passive roller, one end of the sleeve ring away from the passive roller being slidably connected to a slide rod fixedly disposed on the cooling tank, a first spring being slidably disposed on the slide rod, one end of the first spring abutting against the cooling tank, and the other end abutting against the sleeve ring.

[0011] As a further embodiment of the present invention: the reciprocating assembly includes pulleys rotatably mounted on the shelf, two sets of pulleys are arranged along the length of the shelf, belts are provided on the two sets of pulleys, and protrusions are fixedly provided on the belts. The protrusions are connected to the two sets of lifting plates through lifting components, and any one of the pulleys is fixedly connected to the output shaft of a second motor fixedly mounted on the shelf.

[0012] As a further embodiment of the present invention: the lifting component includes a sliding plate fixedly disposed between the two sets of lifting plates, the sliding plate having a sliding groove, and the protruding post being slidably disposed within the sliding groove.

[0013] As a further embodiment of the present invention: the trigger includes a wheel groove, which is rotatably mounted on a baffle plate fixed to the end of the cooling tank, and two sets of wheel grooves are symmetrically arranged along the length direction of the baffle plate.

[0014] As a further embodiment of the present invention: the telescopic structure includes a fixed sleeve fixedly installed on the lifting plate, a telescopic rod slidably disposed inside the fixed sleeve, a pulley rotatably mounted on one end of the telescopic rod toward the trigger block, the pulley cooperating with the trigger block, and a second spring slidably disposed inside the fixed sleeve, one end of the second spring abutting against the telescopic rod, and the other end abutting against the fixed sleeve.

[0015] As a further aspect of the present invention, a method for producing recycled plastic chips based on thermoplastic extrusion is also proposed, employing the aforementioned thermoplastic extrusion-based recycled plastic chip production apparatus, comprising the following steps:

[0016] Step 1: The thermoplastic strip, cooled in the cooling tank, is passed through the grid plate via the transmission assembly. Then, the first motor is started, and the active roller rotates continuously toward the grid plate. Under the friction between the passive roller and the active roller and the thermoplastic strip, the thermoplastic strip can be continuously transported toward the shelf.

[0017] Step 2: The second motor works synchronously with the first motor, driving the belt to rotate continuously in the same direction. When rotating, the sliding plate drives the lifting plate to slide back and forth along the length of the shelf.

[0018] Step 3: The lifting plate moves up and down to cut the thermoplastic strip with the cutting blade. After the cutting blade makes one cut, the lifting plate, which is going down or up, will cause the deflection rod to contact the wheel groove. Under the action of the telescopic structure, the cutting blade will deflect so as to make the next cut.

[0019] Step 4: Repeat steps 2 and 3 above to continuously cut the thermoplastic strip.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] By setting up a transport component and utilizing the cooperation between the active and passive rollers, along with the cooperation of the first spring, it is possible to continuously transport thermoplastic strips of different diameters, which meets actual production needs and improves the practicality of the device.

[0022] By setting up a cutting mechanism, the thermoplastic strips of different diameters transported by the conveying component through the grid are cut using the cooperation between the deflection component and the reciprocating component. During the reciprocating cutting process, the deflection component can drive the cutting blade to deflect because the transport and cutting are carried out simultaneously. This prevents the cutting blade from squeezing the conveyed thermoplastic strip during cutting, which would cause uneven granulation of the thermoplastic strip, thereby improving the production quality. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of one embodiment of a device for producing chips from recycled plastics based on thermoplastic extrusion.

[0024] Figure 2 This is a schematic diagram of the conveying component in one embodiment of a thermoplastic extrusion-based recycled plastic slicing device.

[0025] Figure 3 This is a schematic diagram of the passive elastic structure in one embodiment of a recycled plastic slicing device based on thermoplastic extrusion.

[0026] Figure 4 This is a schematic diagram of the trigger element in one embodiment of a device for producing slicing recycled plastics based on thermoplastic extrusion.

[0027] Figure 5 This is a schematic diagram of the cutting mechanism in one embodiment of a thermoplastic extrusion-based recycled plastic slicing device.

[0028] Figure 6 This is a schematic diagram of the deflection structure in one embodiment of a recycled plastic slicing device based on thermoplastic extrusion.

[0029] Figure 7 This is a schematic diagram of the telescopic structure in one embodiment of a thermoplastic extrusion-based recycled plastic slicing device.

[0030] Figure 8 This is a schematic diagram of the reciprocating component in one embodiment of a thermoplastic extrusion-based recycled plastic slicing device.

[0031] Figure 9 This is a schematic diagram of the lifting component in one embodiment of a thermoplastic extrusion-based recycled plastic slicing device.

[0032] In the diagram: 1. Cooling tank; 2. Baffle plate; 3. Shelf plate; 4. Belt; 5. Receiving funnel; 6. Lifting plate; 7. Fixing sleeve; 8. Deflecting rod; 9. First spring; 10. First motor; 11. Driving roller; 12. Passive roller; 13. Extrusion groove; 14. Connecting ring; 15. Sliding rod; 16. Through hole; 17. Snap-fit ​​groove; 18. Wheel groove; 19. Second motor; 20. Second spring; 21. Trigger block; 22. Cutting blade; 23. Telescopic rod; 24. Protrusion; 25. Sliding plate; 26. Locking groove; 27. First sliding surface; 28. Second sliding surface. Detailed Implementation

[0033] 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.

[0034] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0035] Please see Figures 1-9 In this embodiment of the invention, a device for producing slicing recycled plastic based on thermoplastic extrusion includes a cooling tank 1, a receiving funnel 5 fixedly provided at the end of the cooling tank 1, a placement plate 3 provided on the receiving funnel 5, two sets of lifting plates 6 slidably provided between the placement plate 3 and the cooling tank 1, and a cutting blade 22 rotatably installed between the two sets of lifting plates 6.

[0036] It should be noted that the cooling tank 1 is connected to the thermoplastic machine (not shown in the figure), and the cooling tank 1 is equipped with a flowing water source. Both the upper and lower ends of the cutting blade 22 are equipped with sharp blades. In the initial state, the blade of the cutting blade 22 is in contact with the baffle plate 2 fixed on the cooling tank 1. The thermoplastic strips processed by the thermoplastic machine fall into the cooling tank 1 for cooling and shaping. Then, the cutting blade 22, which moves up and down along the plane of the baffle plate 2, can continuously cut and granulate the thermoplastic strips.

[0037] A transmission component, disposed on the cooling tank 1, includes an active structure and a passive elastic structure, wherein the active structure and the passive elastic structure are capable of transporting thermoplastic strips of different diameters;

[0038] The active structure includes an active roller 11 rotatably mounted on the cooling tank 1, one end of which is fixedly connected to the output shaft of a first motor 10 fixedly mounted on the outer wall of the cooling tank 1.

[0039] The passive elastic structure includes a passive roller 12 disposed on the cooling tank 1, a sleeve ring 14 rotatably mounted on the passive roller 12, one end of the sleeve ring 14 away from the passive roller 12 being slidably connected to a slide rod 15 fixedly disposed on the cooling tank 1, and a first spring 9 slidably disposed on the slide rod 15, one end of the first spring 9 abutting against the cooling tank 1, and the other end abutting against the sleeve ring 14;

[0040] For details, please refer to Figure 1 , Figure 2 , Figure 3 Both the active roller 11 and the passive roller 12 are provided with extrusion grooves 13, which can clamp and extrude the thermoplastic strip and position the thermoplastic strip during transportation; in particular, please refer to Figure 1 , Figure 2 The passive roller 12 is located in the movable groove opened on the side wall of the cooling tank 1. In the initial state, the first spring 9 is in a compressed state, which can push the passive roller 12 to the first end of the movable groove. At this time, the distance between the active roller 11 and the passive roller 12 is the smallest. When the cutting work is performed, the cooled thermoplastic strip is pulled and placed between the extrusion grooves 13. The extrusion generated between the thermoplastic strip and the passive roller 12 can push the passive roller 12 to slide along the movable groove, so that the first spring 9 can further extrude. Then the first motor 10 is started, the active roller 11 continues to rotate in the same direction, and the passive roller 12 rotates in the opposite direction due to the friction between it and the thermoplastic strip. The two cooperate with each other to continuously transport thermoplastic strips of different diameters and transfer the thermoplastic strip to the cutting position for cutting.

[0041] In this embodiment of the invention, by setting up a transport component, the cooperation between the active roller 11 and the passive roller 12, and with the cooperation of the first spring 9, can continuously transport thermoplastic strips of different diameters, which meets actual production needs and improves the practicality of the device.

[0042] As one embodiment of the present invention, please refer to Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 A device for producing recycled plastic slices based on thermoplastic extrusion also includes a cutting mechanism. The cutting mechanism includes a reciprocating component disposed on the placement plate 3 and a deflection component mounted on the lifting plate 6. The reciprocating component can drive the cutting blade 22 to reciprocate and move up and down in the vertical direction of the space of the cooling tank 1. When the cutting blade 22 moves to the end of the reciprocating stroke, the deflection component is activated, which can drive the cutting blade 22 to rotate relative to the lifting plate 6.

[0043] The reciprocating assembly includes pulleys rotatably mounted on the shelf 3. Two sets of pulleys are arranged along the length of the shelf 3. Belts 4 are provided on the two sets of pulleys. Protrusions 24 are fixedly provided on the belts 4. The protrusions 24 are connected to the two sets of lifting plates 6 through lifting components. Furthermore, any one of the pulleys is fixedly connected to the output shaft of a second motor 19 fixedly mounted on the shelf 3.

[0044] The lifting component includes a sliding plate 25 fixedly disposed between two sets of lifting plates 6, the sliding plate 25 having a sliding groove, and the protruding column 24 being slidably disposed in the sliding groove;

[0045] For details, please refer to Figure 4 , Figure 5 , Figure 8 The aforementioned shelf 3 has a snap-fit ​​groove 17, and the lifting plate 6 is slidably disposed in the snap-fit ​​groove 17. In particular, the second motor 19 and the first motor 10 are controlled by the same switch. When the first motor 10 is started, the second motor 19 will drive the belt 4 to rotate continuously in the same direction. At the same time, the protrusion 24 fixed on the belt 4 will slide in the groove opened on the sliding plate 25, and drive the lifting plate 6 to slide back and forth along the snap-fit ​​groove 17. During the sliding process, the cutting blade 22 mounted on the lifting plate 6 will cut the thermoplastic strip.

[0046] The deflection assembly includes a rotating structure and a telescopic structure. The rotating structure includes a trigger and a deflection component. The deflection component is coaxially and fixedly connected to the trigger block 21 of the cutting blade 22. A deflection rod 8 is coaxially and fixedly provided on the side of the trigger block 21 away from the cutting blade 22.

[0047] In particular, please see Figure 5 , Figure 6 The trigger block 21 mentioned above is set as follows: Figure 6 The symmetrical shape shown is provided on the trigger block 21, and the trigger block 21 is provided with an inclined first sliding surface 27 and a second sliding surface 28. Both the first sliding surface 27 and the second sliding surface 28 are provided with locking grooves 26. When the trigger block 21 cooperates with the telescopic structure and the triggering element, it can drive the cutting blade 22 to deflect and fix its position after deflection so as to continuously cut the thermoplastic strip.

[0048] The trigger includes a wheel groove 18, which is rotatably mounted on a baffle plate 2 fixed to the end of the cooling tank 1, and two sets of wheel grooves 18 are symmetrically arranged along the length of the baffle plate 2.

[0049] Specifically, please see Figure 4 The grid plate 2 is provided with a series of through holes 16 at equal intervals along its width direction. The through holes 16 correspond to the extrusion grooves 13 on the drive roller 11, and the diameter of the through holes 16 is larger than the diameter of the largest thermoplastic strip, so that thermoplastic strips of different diameters can pass through the grid plate 2 for cutting operations.

[0050] The telescopic structure includes a fixed sleeve 7 fixedly installed on the lifting plate 6. A telescopic rod 23 is slidably disposed inside the fixed sleeve 7. A pulley is rotatably installed on one end of the telescopic rod 23 facing the trigger block 21. The pulley cooperates with the trigger block 21. A second spring 20 is also slidably disposed inside the fixed sleeve 7. One end of the second spring 20 abuts against the telescopic rod 23, and the other end abuts against the fixed sleeve 7.

[0051] For details, please refer to Figure 5 , Figure 6 , Figure 7 , Figure 8Initially, the fixed sleeve 7 is compressed, pushing the telescopic rod 23 away from the shelf 3 and engaging the pulley with the locking groove 26. At this time, the lifting plate 6 is located at the end of the locking groove 17 away from the receiving funnel 5. After starting the first motor 10, the lifting plate 6 descends along the locking groove 17, and the cutting blade 22 can cut the thermoplastic strip conveyed by the conveying assembly through the baffle plate 2. After the cutting blade 22 passes through the through hole 16, the continuously conveyed thermoplastic strip moves upward along the blade surface of the inclined cutting blade 22. Subsequently, the descending lifting plate 6 will cause the deflection rod 8 to contact the wheel groove 18. As the lifting plate 6 continues to descend, the wheel groove 18 forces the deflection rod 8 to continuously deflect in a direction away from the receiving funnel 5. At this time, the second spring 20 is further compressed, the pulley separates from the locking groove 26, and moves along... The first sliding surface 27 of the trigger block 21 slides. During the sliding process, the second spring 20 is continuously compressed until the pulley passes the center of symmetry of the trigger block 21. The lifting plate 6 moves to the end of the stroke of the locking groove 17. The second spring 20 releases its elastic potential energy and pushes the telescopic rod 23 toward the baffle plate 2, causing the pulley to slide along the second sliding surface 28 of the trigger block 21 and finally engage with the locking groove 26 provided on the second sliding surface 28. At this time, the cutting blade 22 deflects and fits against the baffle plate 2. Then, the lifting plate 6 is driven by the belt 4 to rise along the locking groove 17 to cut the thermoplastic strip again until the cutting blade 22 passes through the through hole 16. The continuously conveyed thermoplastic strip moves downward at an angle along the blade surface of the cutting blade 22. The deflection process of the cutting blade 22 is repeated to perform the next cut.

[0052] In this embodiment of the invention, by setting up a cutting mechanism, the thermoplastic strips of different diameters transported by the conveying component through the grid plate 2 are cut using the cooperation between the deflection component and the reciprocating component. During the reciprocating cutting process of the cutting blade 22, since the transport and cutting are carried out simultaneously, the deflection component can drive the cutting blade 22 to deflect, preventing the cutting blade 22 from squeezing the conveyed thermoplastic strip during cutting, which would cause uneven granulation of the thermoplastic strip, thereby improving the production quality.

[0053] As an embodiment of the present invention, a method for producing recycled plastic chips based on thermoplastic extrusion is also proposed, which uses the aforementioned thermoplastic extrusion-based recycled plastic chip production apparatus and includes the following steps:

[0054] Step 1: The thermoplastic strip cooled by the cooling tank 1 is passed through the conveying assembly and then through the baffle 2. Then the first motor 10 is started and the active roller 11 rotates continuously toward the baffle 2. Under the friction between the passive roller 12 and the active roller 11 and the thermoplastic strip, the thermoplastic strip can be continuously transported toward the shelf 3.

[0055] Step 2: The second motor 19 works synchronously with the first motor 10, driving the belt 4 to rotate continuously in the same direction. When rotating, the sliding plate 25 drives the lifting plate 6 to slide back and forth along the length of the shelf 3.

[0056] Step 3: The lifting plate 6 drives the cutting blade 22 to cut the thermoplastic strip. After the cutting blade 22 makes one cut, the lifting plate 6, which is descending or rising, will drive the deflection rod 8 to contact the wheel groove 18. Under the action of the telescopic structure, the cutting blade 22 will be deflected so as to make the next cut.

[0057] Step 4: Repeat steps 2 and 3 above to continuously cut the thermoplastic strip.

[0058] It will be apparent to those skilled in the art that the present 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 its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for producing chips from recycled plastics based on thermoplastic extrusion, characterized in that, include: Cooling tank (1), a receiving funnel (5) is fixedly provided at the end of the cooling tank (1), a placement plate (3) is provided on the receiving funnel (5), two sets of lifting plates (6) are slidably arranged between the placement plate (3) and the cooling tank (1), and a cutting blade (22) is rotatably installed between the two sets of lifting plates (6). The transmission component, disposed on the cooling tank (1), includes an active structure and a passive elastic structure, wherein the active structure and the passive elastic structure are capable of transporting thermoplastic strips of different diameters; The cutting mechanism includes a reciprocating component mounted on the storage plate (3) and a deflection component mounted on the lifting plate (6). The reciprocating component can drive the cutting blade (22) to reciprocate and lift along the vertical direction of the cooling tank (1). When the cutting blade (22) moves to the end of the reciprocating stroke, the deflection component can drive the cutting blade (22) to rotate relative to the lifting plate (6). The active structure includes an active roller (11) rotatably mounted on the cooling tank (1), one end of which is fixedly connected to the output shaft of a first motor (10) fixedly mounted on the outer wall of the cooling tank (1). The deflection assembly includes a rotating structure and a telescopic structure. The rotating structure includes a trigger and a deflection component. The deflection component is coaxially fixedly connected to the trigger block (21) of the cutting blade (22). A deflection rod (8) is coaxially fixedly provided on the side of the trigger block (21) away from the cutting blade (22). The trigger includes a wheel groove (18), which is rotatably mounted on a baffle plate (2) fixed to the end of the cooling tank (1), and two sets of wheel grooves (18) are symmetrically arranged along the length direction of the baffle plate (2). The telescopic structure includes a fixed sleeve (7) fixedly installed on the lifting plate (6), a telescopic rod (23) is slidably arranged inside the fixed sleeve (7), a pulley is rotatably installed on one end of the telescopic rod (23) facing the trigger block (21), the pulley cooperates with the trigger block (21), and a second spring (20) is also slidably arranged inside the fixed sleeve (7), one end of the second spring (20) abuts against the telescopic rod (23), and the other end abuts against the fixed sleeve (7); The trigger block (21) is provided with an inclined first sliding surface (27) and a second sliding surface (28). Both the first sliding surface (27) and the second sliding surface (28) are provided with locking grooves (26). When the trigger block (21) cooperates with the telescopic structure and the triggering element, it can drive the cutting blade (22) to deflect and fix its position after deflection.

2. The device for producing recycled plastic chips based on thermoplastic extrusion according to claim 1, characterized in that, The passive elastic structure includes a passive roller (12) disposed on the cooling tank (1), a sleeve ring (14) is rotatably mounted on the passive roller (12), one end of the sleeve ring (14) away from the passive roller (12) is slidably connected to a slide rod (15) fixedly disposed on the cooling tank (1), and a first spring (9) is slidably disposed on the slide rod (15), one end of the first spring (9) abuts against the cooling tank (1), and the other end abuts against the sleeve ring (14).

3. The device for producing recycled plastic chips based on thermoplastic extrusion according to claim 2, characterized in that, The reciprocating assembly includes pulleys rotatably mounted on the shelf (3). Two sets of pulleys are arranged along the length of the shelf (3). A belt (4) is provided on the two sets of pulleys. A protrusion (24) is fixedly provided on the belt (4). The protrusion (24) is connected to the two sets of lifting plates (6) through a lifting component. Any one of the pulleys is fixedly connected to the output shaft of a second motor (19) fixedly mounted on the shelf (3).

4. The device for producing recycled plastic chips based on thermoplastic extrusion according to claim 3, characterized in that, The lifting component includes a sliding plate (25) fixedly disposed between two sets of lifting plates (6), the sliding plate (25) having a sliding groove, and the protruding column (24) being slidably disposed in the sliding groove.

5. A method for producing chips from recycled plastics based on thermoplastic extrusion, characterized in that, The apparatus for producing recycled plastic chips based on thermoplastic extrusion as described in claim 1 includes the following steps: Step 1: The thermoplastic strip cooled by the cooling tank (1) is passed through the conveying assembly and then through the baffle (2). Then the first motor (10) is started and the active roller (11) rotates continuously toward the baffle (2). Under the friction between the passive roller (12) and the active roller (11) and the thermoplastic strip, the thermoplastic strip can be continuously transported toward the shelf (3). Step 2: The second motor (19) works synchronously with the first motor (10), driving the belt (4) to rotate continuously in the same direction. When rotating, the sliding plate (25) drives the lifting plate (6) to slide back and forth along the length of the shelf (3). Step 3: The lifting plate (6) drives the cutting blade (22) to cut the thermoplastic strip. After the cutting blade (22) makes one cut, the lifting plate (6) which is going down or up will drive the deflection rod (8) to contact the wheel groove (18). Under the action of the telescopic structure, the cutting blade (22) will deflect so as to make the next cut. Step 4: Repeat steps 2 and 3 above to continuously cut the thermoplastic strip.

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