An adjustable plastic bottle cutter

Abstract

This utility model discloses an adjustable plastic bottle cutting device, relating to the field of plastic bottle processing technology. It aims to solve the technical problem that current devices are inconvenient to adjust according to the height and mouth size of plastic bottles. The device includes a conveying mechanism, a driving mechanism mounted on the conveying mechanism, a clamping mechanism, and a cutting mechanism mounted on the driving mechanism. The conveying mechanism includes a conveying table. The clamping mechanism includes a front clamping plate and a rear clamping plate mounted on a first support plate. A material feeding plate is provided at the rear end of the rear clamping plate. The cutting mechanism includes a fourth mounting plate located on the upper part of a second support plate. A rotating shaft is rotatably mounted at an equidistant distance from the lower end of the second support plate, and an eccentric box is mounted at the end of the rotating shaft. This utility model has the advantages of being adaptable to different plastic bottle heights and mouth sizes, eliminating the need for frequent changes of clamps and cutters, improving processing efficiency, and automatically feeding and collecting flash, ensuring stable operation of the device.

Description

Technical Field

[0001] This utility model relates to the field of plastic bottle processing technology, and more specifically, to an adjustable plastic bottle cutting device. Background Technology

[0002] Plastic bottles are containers made primarily of plastic and are commonly found in daily life. They are typically made of materials such as polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET), and are characterized by their lightweight, durability, and low cost. PET bottles are the most common type, widely used for packaging mineral water, beverages, and more. They offer high transparency and good barrier properties, effectively preventing spoilage of the contents. Plastic bottles come in a variety of designs, with different capacities, shapes, and colors to meet the packaging needs of various products.

[0003] Due to the blow molding process in plastic bottle manufacturing, a 2-3 cm protruding edge often appears at the bottle neck. This protrusion needs to be cut off. Currently, plastic bottle cutting devices are not easily adjustable to accommodate different bottle heights and neck sizes. Therefore, changing fixtures and cutting tools is necessary when cutting bottles of different sizes, impacting processing efficiency. To address this, we propose an adjustable plastic bottle cutting device. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an adjustable plastic bottle cutting device to solve the technical problem that the current device is inconvenient to adjust according to the height of the plastic bottle and the size of the bottle opening.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an adjustable plastic bottle cutting device, including a conveying mechanism, a driving mechanism mounted on the conveying mechanism, a clamping mechanism and a cutting mechanism mounted on the driving mechanism. The conveying mechanism includes a conveying table. The driving mechanism includes a first mounting plate, a second mounting plate and a third mounting plate mounted at the lower end of the conveying table. A bidirectional lead screw is rotatably mounted between the first mounting plate and the second mounting plate. A first support plate is symmetrically mounted on the bidirectional lead screw. A unidirectional lead screw is rotatably mounted between the second mounting plate and the third mounting plate. A second support plate is mounted on the unidirectional lead screw. The clamping mechanism includes a front clamping plate and a rear clamping plate mounted on the first support plate. A feeding plate is mounted at the rear end of the rear clamping plate. The cutting mechanism includes a fourth mounting plate mounted on the upper end of the second support plate. A rotating shaft is rotatably mounted at equal intervals at the lower end of the second support plate. An eccentric box is mounted at the end of the rotating shaft. A threaded rod is rotatably mounted inside the eccentric box. A third movable block is mounted on the threaded rod. A cutting blade is mounted at the lower end of the third movable block.

[0006] Preferably, the upper end of the conveyor table is symmetrically provided with movable openings, and the upper end of the conveyor table is provided with an installation groove located between the movable openings. A drive wheel and a driven wheel are symmetrically rotatably installed in the installation groove. A conveyor belt is provided between the drive wheel and the driven wheel. A first motor that drives the drive wheel is provided at the rear end of the conveyor table.

[0007] Preferably, a second motor driving a bidirectional lead screw is provided on the side end of the first mounting plate, and a first movable block is symmetrically arranged on the bidirectional lead screw. A support telescopic rod is installed on the upper end of the first movable block, and a first support plate is installed on the upper end of the support telescopic rod. A first connecting telescopic rod is connected between the first support plates. A third motor driving a unidirectional lead screw is provided on the side end of the third mounting plate, and a second movable block is provided on the unidirectional lead screw. A hydraulic device is provided on the upper end of the second movable block, and a second support plate is installed on the end of the hydraulic rod of the hydraulic device. A second connecting telescopic rod is connected between the first support plate close to the second support plate and the second support plate.

[0008] Preferably, both the front and rear clamping plates are provided with clamping grooves, the clamping grooves are provided with mounting cavities, the mounting cavities are provided with springs, and the ends of the springs are fitted with clamping plates.

[0009] Preferably, the feeding plate includes symmetrically arranged guiding parts, the guiding parts are bent downward along the long axis, the guiding parts form a moving opening between them, the guiding parts are connected by a guide part, the front end of the guide part is V-shaped, and the outer side of the guiding part is provided with a blocking part.

[0010] Preferably, a knob is rotatably mounted at the rear end of the eccentric box, the knob is connected to the axis of the threaded rod, an elastic plate is provided on the cutting blade, the elastic plate includes a wrapping part and an elastic part along the long axis, the wrapping part and the elastic part are both arc-shaped, and the overall shape of the elastic plate is S-shaped.

[0011] Preferably, a sprocket connected to the axis of the rotating shaft is rotatably mounted on the upper end of the fourth mounting plate, a transmission chain is provided between adjacent sprockets, a fourth motor is provided on the fourth mounting plate, and the output shaft of the fourth motor is connected to the axis of the sprocket located at the tail.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model designs a hydraulic device, a clamping plate, and an eccentric box structure. The hydraulic device can drive the clamping mechanism and the cutting mechanism to rise and fall synchronously to adapt to plastic bottles of different heights. Secondly, the clamping grooves, springs, and clamping plates on the front and rear clamping plates form an elastic clamping structure. The springs can push the clamping plates to make close contact with the bottle mouth, which can not only firmly clamp the plastic bottle, but also adapt to the clamping needs of bottle mouths of different sizes. Finally, the eccentric box and the threaded rod inside the eccentric box can adjust the position of the cutting blade, so that the cutting blade can adapt to the cutting of bottle mouths of different sizes. There is no need to frequently change the clamps and tools, which greatly improves the processing efficiency of plastic bottles and solves the problem that the current device is inconvenient to adjust according to the height of the plastic bottle and the size of the bottle mouth.

[0014] 2. This utility model also features a unique design for the feeding plate and elastic plate structure. The feeding plate at the rear end of the rear clamping plate has a downward-curving guide section and a V-shaped front end, which effectively guides the burrs after cutting to slide off. The blocking section prevents the burrs from leaking out to the side. At the same time, the overall S-shaped shape of the elastic plate allows the elastic plate on the cutting blade to use the thrust generated by the elastic part returning to its original shape after cutting to push the burrs off to the feeding plate, realizing automatic feeding and collection of burrs, avoiding the accumulation of burrs from affecting subsequent cutting work, and ensuring the continuous and stable operation of the device. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the conveyor table structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the rear clamping plate structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the cutting mechanism structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the drive mechanism structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the cutting blade structure of this utility model;

[0022] Figure 8 This is a schematic diagram of the elastic plate structure of this utility model;

[0023] Figure 9 This is a schematic diagram of one usage state of the present invention.

[0024] Explanation of the numbers in the diagram: 100, Conveying mechanism; 101, Conveying table; 102, Movable opening; 103, Conveyor belt; 104, First motor; 200, Drive mechanism; 201, First mounting plate; 202, Second mounting plate; 203, Third mounting plate; 204, Bidirectional lead screw; 205, First movable block; 206, Support telescopic rod; 207, First support plate; 208, First connecting telescopic rod; 209, Second motor; 210, Unidirectional lead screw; 211, Second movable block; 212, Third motor; 213, Hydraulic equipment; 214, Second support plate; 215, Second connecting telescopic rod. 300. Clamping mechanism; 301. Front clamping plate; 302. Rear clamping plate; 303. Clamping groove; 304. Spring; 305. Clamping plate; 306. Feeding plate; 3061. Guide part; 3062. Stop part; 3063. Moving port; 3064. Guide part; 400. Cutting mechanism; 401. Fourth mounting plate; 402. Rotating shaft; 403. Sprocket; 404. Fourth motor; 405. Eccentric box; 406. Threaded rod; 407. Knob; 408. Third movable block; 409. Cutting blade; 410. Elastic plate; 4101. Wrapping part; 4102. Elastic part. Detailed Implementation

[0025] like Figures 1 to 9 As shown, this utility model relates to an adjustable plastic bottle cutting device, including a conveying mechanism 100, a driving mechanism 200 disposed on the conveying mechanism 100, a clamping mechanism 300 and a cutting mechanism 400 disposed on the driving mechanism 200. The conveying mechanism 100 includes a conveying table 101. The driving mechanism 200 includes a first mounting plate 201, a second mounting plate 202 and a third mounting plate 203 disposed at the lower end of the conveying table 101. A bidirectional lead screw 204 is rotatably mounted between the first mounting plate 201 and the second mounting plate 202. A first support plate 207 is symmetrically disposed on the bidirectional lead screw 204. The second mounting plate 202 and the third mounting plate 203 are rotatably mounted between each other. A one-way lead screw 210 is installed, and a second support plate 214 is provided on the one-way lead screw 210. The clamping mechanism 300 includes a front clamping plate 301 and a rear clamping plate 302 installed on a first support plate 207. A feeding plate 306 is provided at the rear end of the rear clamping plate 302. The cutting mechanism 400 includes a fourth mounting plate 401 provided on the upper end of the second support plate 214. A rotating shaft 402 is rotatably mounted at an equal distance from the lower end of the second support plate 214. An eccentric box 405 is installed at the end of the rotating shaft 402. A threaded rod 406 is rotatably mounted inside the eccentric box 405. A third movable block 408 is provided on the threaded rod 406. A cutting blade 409 is provided at the lower end of the third movable block 408. This utility model can adapt to different plastic bottle heights and bottle mouth sizes, eliminating the need for frequent changes of clamps and tools, improving processing efficiency, and automatically feeding and collecting flash, ensuring stable operation of the device.

[0026] Specifically, the upper end of the conveyor table 101 has symmetrically arranged movable openings 102. An installation groove is formed between the movable openings 102 at the upper end of the conveyor table 101. A drive wheel and a driven wheel are symmetrically and rotatably installed within the installation groove. A conveyor belt 103 is arranged between the drive wheel and the driven wheel. A first motor 104 driving the drive wheel is located at the rear end of the conveyor table 101. The movable openings 102 facilitate the movement of the first support plate 207 and the second support plate 214, thereby facilitating the clamping mechanism 300 to clamp the bottle neck and the cutting mechanism 400 to cut the burrs from the plastic bottle. The conveyor belt 103 can be connected to conveying equipment for processing plastic bottles. Plastic bottles are fed onto the conveyor belt 103 by conveying, and the first motor 104 causes the conveyor belt 103 to move and transport the plastic bottles.

[0027] Furthermore, a second motor 209 for driving a bidirectional lead screw 204 is provided on the side of the first mounting plate 201. A first movable block 205 is symmetrically arranged on the bidirectional lead screw 204. A support telescopic rod 206 is installed on the upper end of the first movable block 205. A first support plate 207 is installed on the upper end of the support telescopic rod 206. A first connecting telescopic rod 208 is connected between the first support plates 207. A third motor 212 for driving a unidirectional lead screw 210 is provided on the side of the third mounting plate 203. A second movable block 211 is provided on the unidirectional lead screw 210. A hydraulic device 213 is provided on the upper end of the second movable block 211. A second support plate 214 is installed at the end of the hydraulic rod of the hydraulic device 213. A second connecting telescopic rod 215 is connected between the first support plate 207 and the second support plate 214, which are close to the second support plate 214. The second motor 209 rotates the bidirectional lead screw 204, which brings the first movable blocks 205 closer together, thus adjusting the distance between the front clamping plate 301 and the rear clamping plate 302. The front clamping plate 301 and the rear clamping plate 302 then clamp the plastic bottle. The third motor 212 rotates the unidirectional lead screw 210, which moves the second movable block 211, adjusting the position of the cutting mechanism 400 to cut the burrs from the bottle neck. When cutting plastic bottles of different heights, the hydraulic device 213 adjusts the clamping mechanism 300 and the cutting mechanism. The height of the clamping and cutting mechanism 400 is adjusted by extending the hydraulic rod of the hydraulic device 213 during adjustment, which raises the second support plate 214. The first support plate 207 connected to it can be raised through the second connecting telescopic rod 215, and the first support plate 207 connected to it can be raised synchronously through the first connecting telescopic rod 208, thereby adjusting the height of the clamping and cutting mechanism 400. The first connecting telescopic rod 208 and the second connecting telescopic rod 215 can also be adapted to the left and right position adjustment of the first support plate 207 and the second support plate 214. When the lead screw is working, the first connecting telescopic rod 208 and the second connecting telescopic rod 215 extend and retract to maintain the connection between the first support plate 207 and the second support plate 214.

[0028] It is worth noting that both the front clamping plate 301 and the rear clamping plate 302 are provided with clamping grooves 303. An installation cavity is formed within the clamping groove 303, and a spring 304 is installed within the installation cavity. A clamping plate 305 is installed at the end of the spring 304. When the front clamping plate 301 and the rear clamping plate 302 are brought close together, they can clamp the plastic bottle within the clamping groove 303. Under the action of the spring 304, the clamping plate 305 can contact the outer surface of the bottle opening to clamp and fix it. Simultaneously, the spring 304 allows adjustment of the position of the clamping plate 305, enabling it to clamp and fix bottle openings of different sizes.

[0029] It is worth mentioning that the feeding plate 306 includes symmetrically arranged guiding parts 3061. The guiding parts 3061 are bent downward along the long axis. A moving port 3063 is formed between the guiding parts 3061. A guide part 3064 is connected between the guiding parts 3061. The front end of the guide part 3064 is V-shaped. A baffle part 3062 is provided on the outside of the guiding parts 3061.

[0030] It is worth noting that a knob 407 is rotatably mounted on the rear end of the eccentric box 405. The knob 407 is connected to the axis of the threaded rod 406. An elastic plate 410 is provided on the cutting blade 409. The elastic plate 410 includes a wrapping part 4101 and an elastic part 4102 along the long axis. Both the wrapping part 4101 and the elastic part 4102 are arc-shaped. The overall shape of the elastic plate 410 is S-shaped. The threaded rod 406 can be rotated by the knob 407. The rotation of the threaded rod 406 can adjust the position of the third movable block 408, thereby adjusting the position of the cutting blade 409. This allows the cutting blade 409 to cut bottle necks of different sizes. When cutting plastic bottles, the cutting mechanism 400 moves towards the plastic bottle as a whole, so that the cutting blade 409 contacts the burr at the bottle neck and cuts it locally. At this time, the elastic part 4102 of the elastic plate 410 contacts and squeezes the burr. The elastic plate 410 is in a deformed state. During the cutting process, the cutting blade 409 rotates along the axis of the rotating shaft 402. When the cutting blade 409 rotates 270°, the burr is cut. The elastic plate 410 will rotate with it. When the burr loses its connection with the bottle neck, the elastic part 4102 of the elastic plate 410 returns to its original shape and applies a pushing force to the burr, which can bounce the burr down to the material plate 306. This facilitates the feeding and collection of the burr material and prevents the burr from accumulating on the device and affecting subsequent cutting work.

[0031] Furthermore, a sprocket 403, rotatably connected to the axis of the rotating shaft 402, is rotatably mounted on the upper end of the fourth mounting plate 401. A transmission chain is provided between adjacent sprockets 403. A fourth motor 404 is mounted on the fourth mounting plate 401, and the output shaft of the fourth motor 404 is connected to the axis of the sprocket 403 located at the tail. During cutting, the operation of the fourth motor 404 causes the tail sprocket 403 to rotate, and under the action of the transmission chain, the other sprockets 403 can rotate synchronously, thereby causing multiple rotating shafts 402 to rotate synchronously, causing the cutting blade 409 to rotate along the bottle neck to cut the burrs.

[0032] Working Principle: This embodiment provides an adjustable plastic bottle cutting device. In use, the plastic bottle is first transported to the conveyor belt 103 of the conveyor table 101 via an external conveying device. The first motor 104 starts, driving the drive wheel to rotate, which in turn drives the conveyor belt 103 to move, transporting the plastic bottle to a designated position below the clamping mechanism 300. The second motor 209 is then started, driving the bidirectional lead screw 204 to rotate. The first movable blocks 205 on the bidirectional lead screw 204 will move closer or further apart under the action of the thread. The first movable blocks 205 move the first support plate 207 via the support telescopic rod 206, thereby adjusting the distance between the front clamping plate 301 and the rear clamping plate 302. The front clamping plate 301 and the rear clamping plate 302 move closer together, clamping the plastic bottle in the clamping groove 300. Within the clamping groove 303, the spring 304 in the mounting cavity pushes the clamping plate 305, making it tightly contact the outer surface of the bottle mouth, thus achieving clamping and fixing of bottle mouths of different sizes. For plastic bottles of different heights, adjustment is made by the hydraulic device 213. The hydraulic rod of the hydraulic device 213 extends or retracts, driving the second support plate 214 to rise or fall. Since the second support plate 214 is connected to the first support plate 207 nearby by a second connecting telescopic rod 215, and the first support plates 207 are connected by a first connecting telescopic rod 208, when the second support plate 214 rises or falls, it can drive the entire clamping mechanism 300 and the cutting mechanism 400 to rise and fall synchronously, completing the height adjustment, thereby adapting to the height of different plastic bottles. After the plastic bottle is clamped, it passes through... The cutting mechanism 400 cuts the plastic bottle. The third motor 212 is activated, driving the one-way lead screw 210 to rotate. The second movable block 211 on the one-way lead screw 210 moves, thereby moving the second support plate 214 and the cutting mechanism 400 mounted on it to a suitable position. This allows the cutting blade 409 to contact the burr at the bottle neck and cut it locally. Before cutting, the knob 407 at the rear of the eccentric box 405 can be rotated. The knob 407 drives the threaded rod 406 to rotate, thereby adjusting the position of the third movable block 408. This allows for fine-tuning of the cutting blade 409 to accommodate different bottle neck sizes. When the cutting blade 409 contacts the burr at the bottle neck and cuts it locally, the cutting blade 409... The elastic part 4102 of the elastic plate 410 on the 9th plate contacts and presses against the flash, causing the elastic plate 410 to deform. The fourth motor 404 starts, and its output shaft drives the sprocket 403 at the tail to rotate. Under the action of the transmission chain, the other sprockets 403 rotate synchronously, thereby causing multiple rotating shafts 402 to rotate synchronously. The cutting blade 409 rotates along the axis of the rotating shaft 402. When the cutting blade 409 rotates 270°, the flash is cut. The elastic plate 410 rotates along with it. After the flash loses its connection with the bottle neck, the elastic part 4102 of the elastic plate 410 returns to its original shape and applies a pushing force to the flash, sending it flying down to the feeding plate 306. The guide part 3061 of the feeding plate 306 bends downward along the long axis, and the front end of the guide part 3064 is V-shaped.The material guides the flash to slide off smoothly, and the baffle 3062 prevents flash from sliding off from both sides. A collection box is installed below the feed plate 306 to ensure smooth flash feeding and collection, preventing flash accumulation from affecting subsequent cutting operations.

[0033] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. An adjustable plastic bottle cutting device, characterized by, The system includes a conveying mechanism (100), a driving mechanism (200) mounted on the conveying mechanism (100), a clamping mechanism (300), and a cutting mechanism (400) mounted on the driving mechanism (200). The conveying mechanism (100) includes a conveying table (101). The driving mechanism (200) includes a first mounting plate (201), a second mounting plate (202), and a third mounting plate (203) mounted at the lower end of the conveying table (101). A bidirectional lead screw (204) is rotatably mounted between the first mounting plate (201) and the second mounting plate (202). A first support plate (207) is symmetrically mounted on the bidirectional lead screw (204). A unidirectional lead screw (210) is rotatably mounted between the second mounting plate (202) and the third mounting plate (203). (210) is provided with a second support plate (214). The clamping mechanism (300) includes a front clamping plate (301) and a rear clamping plate (302) installed on the first support plate (207). The rear end of the rear clamping plate (302) is provided with a feeding plate (306). The cutting mechanism (400) includes a fourth mounting plate (401) provided on the upper end of the second support plate (214). The lower end of the second support plate (214) is equidistantly mounted with a rotating shaft (402). The end of the rotating shaft (402) is mounted with an eccentric box (405). The eccentric box (405) is rotatably mounted with a threaded rod (406). The threaded rod (406) is provided with a third movable block (408). The lower end of the third movable block (408) is provided with a cutting blade (409).

2. An adjustable plastic bottle cutting device as defined in claim 1, wherein, The upper end of the conveyor platform (101) is symmetrically provided with movable openings (102). The upper end of the conveyor platform (101) is provided with an installation groove between the movable openings (102). A drive wheel and a driven wheel are symmetrically rotatably installed in the installation groove. A conveyor belt (103) is provided between the drive wheel and the driven wheel. A first motor (104) for driving the drive wheel is provided at the rear end of the conveyor platform (101).

3. An adjustable plastic bottle cutting device as defined in claim 2, wherein, The first mounting plate (201) is provided with a second motor (209) for driving a bidirectional lead screw (204) on its side. A first movable block (205) is symmetrically arranged on the bidirectional lead screw (204). A support telescopic rod (206) is installed on the upper end of the first movable block (205). A first support plate (207) is installed on the upper end of the support telescopic rod (206). A first connecting telescopic rod (208) is connected between the first support plates (207). The third mounting plate (203) is provided with a third motor (212) for driving a unidirectional lead screw (210) on its side. A second movable block (211) is arranged on the unidirectional lead screw (210). A hydraulic device (213) is arranged on the upper end of the second movable block (211). A second support plate (214) is installed at the end of the hydraulic rod of the hydraulic device (213). A second connecting telescopic rod (215) is connected between the first support plate (207) close to the second support plate (214) and the second support plate (214).

4. An adjustable plastic bottle cutting device as defined in claim 3, wherein, Both the front clamping plate (301) and the rear clamping plate (302) are provided with clamping grooves (303), and an installation cavity is provided in the clamping grooves (303). A spring (304) is provided in the installation cavity, and a clamping plate (305) is installed at the end of the spring (304).

5. An adjustable plastic bottle cutting device as defined in claim 4, wherein, The feeding plate (306) includes symmetrically arranged guiding parts (3061), the guiding parts (3061) are bent downward along the long axis, the guiding parts (3061) form a moving port (3063) between the guiding parts (3061), the guiding parts (3061) are connected by a guide part (3064), the front end of the guide part (3064) is V-shaped, and the outer side of the guiding part (3061) is provided with a baffle part (3062).

6. An adjustable plastic bottle cutting device as defined in claim 5, wherein, A knob (407) is rotatably mounted on the rear end of the eccentric box (405). The knob (407) is connected to the axis of the threaded rod (406). An elastic plate (410) is provided on the cutting blade (409). The elastic plate (410) includes a wrapping part (4101) and an elastic part (4102) along the long axis. Both the wrapping part (4101) and the elastic part (4102) are arc-shaped. The overall shape of the elastic plate (410) is S-shaped.

7. An adjustable plastic bottle cutting device according to claim 6, characterized in that, The upper end of the fourth mounting plate (401) is rotatably mounted with a sprocket (403) connected to the axis of the rotating shaft (402). A transmission chain is provided between adjacent sprockets (403). A fourth motor (404) is provided on the fourth mounting plate (401). The output shaft of the fourth motor (404) is connected to the axis of the sprocket (403) located at the tail.

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