A height-adjustable ring cutting device for processing plastic bottle caps
The height-adjustable ring-cutting device solves the problem of the inability to adjust the height of the ring-cutting blade, achieving adaptive ring cutting and stable cutting results for bottle caps of different sizes.
Patent Information
- Application Number
- CN202521362384.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-01
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-01
AI Technical Summary
Existing plastic bottle cap processing equipment lacks the function of adjusting the height of the cutting blade, which cannot adapt to the cutting requirements of bottle caps of different sizes. Furthermore, the drive gear does not match the surface texture of bottle caps of different sizes, affecting the cutting effect.
A height-adjustable ring-cutting device was designed. The height of the ring-cutting blade is adjusted by a second motor driving a gear and rack, and the bottle cap is rotated stably by a third motor driving a lead screw and lifting plate structure. Combined with the motor and transmission shaft driving the turntable to rotate, the bottle cap is stably cut.
It enables flexible adjustment of the ring-cutting blade height to adapt to the ring-cutting requirements of bottle caps of different sizes, and ensures the stability and accuracy of bottle caps during the ring-cutting process.
Smart Images

Figure CN224675064U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic bottle cap processing technology, specifically a ring cutting device for processing height-adjustable plastic bottle caps. Background Technology
[0002] Most plastic bottle caps have an tamper-evident ring at the opening, and anti-slip teeth are machined on the outer circumference of the cap for easy screwing. When the plastic bottle cap is screwed open, the connection point between the tamper-evident ring and the plastic bottle cap is broken, thus identifying whether the plastic bottle cap packaging has been opened, achieving a good anti-theft effect. However, most plastic bottle caps are manufactured by injection molding machines. The connection point between the tamper-evident ring and the plastic bottle cap is processed by ring cutting equipment, cutting multiple openings between the tamper-evident ring and the plastic bottle cap to connect them through the connection point.
[0003] Chinese patent publication number CN222819038U discloses "a ring-cutting device for plastic bottle cap production and processing, including a machine base, a support column at the top of the machine base, and a cylinder for holding bottle caps on the support column. A through groove is opened in the middle of the machine base, located directly below the cylinder. A liftable first cylinder is provided in the inner cavity of the machine base, and an inner support block for supporting the bottle cap from the inside is installed at the free end of the first cylinder." This patent effectively clamps the bottle cap by setting an integrated upper and lower clamping mechanism. Specifically, the clamping mechanism includes a liftable inner support component at the bottom, which can press the bottle cap from the inside to prevent the bottle cap from denting inward under force, and a pressing component at the top, which applies downward pressure. The blade is pressed tightly against the outside of the bottle cap to prevent it from bouncing up and down during the cutting process, thus improving cutting accuracy. However, the aforementioned patent lacks a height adjustment function for the cutting blade. Different bottle cap sizes require different cutting heights for the tamper-evident rings. If the cutting blade height cannot be adjusted, the device will not be able to meet the cutting requirements of different bottle caps. Furthermore, the aforementioned patent uses a drive gear that meshes with the threads on the bottle cap surface to drive the bottle cap to rotate. During rotation, the bottle cap contacts the blade to complete the cutting. However, the surface textures of bottle caps of different sizes are different, which means that the drive gear cannot guarantee to drive bottle caps of different sizes, thus affecting subsequent cutting work. Therefore, we propose a height-adjustable plastic bottle cap cutting device. Utility Model Content
[0004] The purpose of this utility model is to provide a height-adjustable ring-cutting device for processing plastic bottle caps, in order to solve the problem mentioned in the background art, but the aforementioned patents do not have the function of adjusting the height of the ring-cutting blade. Different sizes of bottle caps require different heights of anti-theft rings to be cut. If the height of the ring-cutting blade cannot be adjusted, the device will not be able to meet the ring-cutting requirements of different bottle caps. Furthermore, the aforementioned patents drive the bottle cap to rotate by meshing the drive gear with the thread on the surface of the bottle cap. During the rotation, the bottle cap comes into contact with the blade to complete the cutting. However, the surface texture of bottle caps of different sizes is different, which makes it impossible for the drive gear to drive bottle caps of different sizes, thus affecting the subsequent cutting work.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a height-adjustable plastic bottle cap cutting ring device, comprising a base, a support plate, and a vertical plate. The support plate is fixedly connected to the top left side of the base, and the vertical plate is fixedly connected to the top right side of the base. The front and rear side walls of the inner cavity of the support plate are provided with sliding grooves. A slider is slidably connected to the inner cavity of the sliding grooves. A movable plate is fixedly connected to the inner side wall of the slider. A rack is fixedly connected to the left side wall of the movable plate. A connecting block is fixedly connected to the lower side of the right side wall of the movable plate. A first electric push rod is fixedly connected to the right side wall of the connecting block. A cutting ring blade is fixedly connected to the end of the first electric push rod. A second motor is fixedly connected to the upper side of the front side wall of the inner cavity of the support plate. A gear is fixedly connected to the end of the power output shaft of the second motor. The gear meshes with the rack. A second electric push rod is fixedly connected to the upper side of the left side wall of the inner cavity of the support plate. A connecting plate is fixedly connected to the end of the second electric push rod. A locking tooth is integrally formed on the right side wall of the connecting plate.
[0006] As a further description of the above technical solution: A mounting box is fixedly connected to the top center of the base. A rotating shaft is rotatably connected to the bottom left side of the inner cavity of the mounting box. A first pulley is fixedly connected to the middle of the outer side wall of the rotating shaft. The end of the rotating shaft passes through the mounting box and extends to the top of the mounting box. A turntable is fixedly connected to the end of the rotating shaft.
[0007] As a further description of the above technical solution: A first motor is fixedly connected to the bottom right side of the inner cavity of the base. A transmission shaft is fixedly connected to the end of the power output shaft of the first motor. The end of the transmission shaft passes through the base and extends into the inner cavity of the mounting box. A second pulley is fixedly connected to the end of the transmission shaft. The second pulley is rotatably connected to the first pulley through a belt.
[0008] As a further description of the above technical solution: A third motor is fixedly connected to the top of the vertical plate, and a lead screw is fixedly connected to the end of the power output shaft of the third motor. The end of the lead screw passes through the vertical plate and extends to the bottom of the inner cavity of the vertical plate.
[0009] As a further description of the above technical solution: A movable block is screwed to the outer wall of the lead screw, and a lifting plate is fixedly connected to the left side wall of the movable block.
[0010] As a further description of the above technical solution: A fixing rod is fixedly connected to the bottom of the lifting plate, and a small disc is fixedly connected to the end of the fixing rod.
[0011] As a further description of the above technical solution: A pressing head is fitted onto the outer wall of the small disc, and a ball bearing is rolled between the pressing head and the small disc.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This height-adjustable plastic bottle cap cutting device uses a second motor to drive a gear, which in turn drives a rack to move up and down. The rack then moves a movable plate, which in turn moves the cutting blade at the end of the first electric push rod. This allows for adjustment of the cutting blade's height, enabling the device to cut bottle caps of different sizes. Finally, the second electric push rod moves a connecting plate to the right, causing a locking tooth to engage with the rack, thus locking the rack and preventing the cutting blade from moving during bottle cap cutting. This allows the device to adjust the cutting blade's height as needed, improving its performance.
[0013] 2. This height-adjustable plastic bottle cap cutting device uses a third motor to drive a lead screw, which in turn moves a moving block downwards. The moving block then lowers a lifting plate, causing the pressing head to press the bottle cap firmly onto the turntable. A first motor then drives a second pulley at the end of a transmission shaft, which in turn drives a first pulley, causing the shaft to rotate. This shaft then rotates the turntable, which in turn rotates the bottle cap. Simultaneously, the pressing head, in conjunction with ball bearings, rotates with the bottle cap, ensuring stability during the cutting process. This allows the device to stably perform the bottle cap cutting operation. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a height-adjustable plastic bottle cap cutting ring device proposed in this utility model. Figure 2 This is a schematic diagram of the main cross-sectional structure of a height-adjustable plastic bottle cap cutting ring device proposed in this utility model. Figure 3 A schematic diagram of the left cross-sectional structure of the support plate of the height-adjustable plastic bottle cap cutting ring device proposed in this utility model; Figure 4 This is a right-side sectional view of the support plate of a height-adjustable plastic bottle cap cutting ring device proposed in this utility model. Figure 5 This is a cross-sectional view of the pressing head of a ring-cutting device for processing height-adjustable plastic bottle caps, as proposed in this utility model.
[0015] In the diagram: 100, base; 110, mounting box; 120, rotating shaft; 130, first pulley; 140, turntable; 150, first motor; 160, transmission shaft; 170, second pulley; 200, support plate; 210, slide groove; 220, slider; 230, movable plate; 231, rack; 240, connecting block; 250, first electric actuator; 260, ring cutter blade; 270, second motor; 271, gear; 280, second electric actuator; 290, connecting plate; 291, locking tooth; 300, vertical plate; 310, third motor; 320, lead screw; 330, moving block; 340, lifting plate; 350, fixed rod; 360, small disc; 370, pressing head; 380, ball bearing. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0019] This utility model provides a height-adjustable ring-cutting device for processing plastic bottle caps. The height of the ring-cutting blade can be adjusted according to requirements, improving the device's performance and ensuring stable rotation of the bottle cap during the ring-cutting process. Please refer to [link to relevant documentation]. Figure 1-5 It includes a base 100, a support plate 200, and a vertical plate 300; Please see Figure 1-4 A support plate 200 is fixedly connected to the top left side of the base 100. The front and rear side walls of the inner cavity of the support plate 200 are provided with sliding grooves 210. A slider 220 is slidably connected to the inner cavity of the sliding grooves 210. A movable plate 230 is fixedly connected to the inner side wall of the slider 220. A rack 231 is fixedly connected to the left side wall of the movable plate 230. A connecting block 240 is fixedly connected to the lower side of the right side wall of the movable plate 230. A first electric push rod 250 is fixedly connected to the right side wall of the connecting block 240. A ring-cutting blade 260 is fixedly connected to the end of the first electric push rod 250. A second motor 270 is fixedly connected to the upper side of the front side wall of the inner cavity of the support plate 200. A gear 271 is fixedly connected to the end of the power output shaft of the second motor 270. The gear 271 meshes with the rack 231. The left side of the inner cavity of the support plate 200... A second electric push rod 280 is fixedly connected to the upper side of the wall. A connecting plate 290 is fixedly connected to the end of the second electric push rod 280. A locking tooth 291 is integrally formed on the right side wall of the connecting plate 290. The second motor 270 drives the gear 271 to rotate, so that the gear 271 drives the rack 231 to rise and fall. Then, the rack 231 drives the movable plate 230 to move. The movable plate 230 then drives the ring-cutting blade 260 at the end of the first electric push rod 250 to rise and fall, so that the height of the ring-cutting blade 260 can be adjusted, thereby enabling it to cut rings on bottle caps of different sizes. Finally, the second electric push rod 280 drives the connecting plate 290 to move to the right, so that the locking tooth 291 engages with the rack 231, thereby locking the rack 231 and preventing the ring-cutting blade 260 from moving when cutting bottle caps. In summary, this allows the device to adjust the height of the cutting ring blade 260 as needed, thereby improving the device's performance.
[0020] Please see Figure 1 , Figure 2 and Figure 5A vertical plate 300 is fixedly connected to the top right side of the base 100. A mounting box 110 is fixedly connected to the middle of the top of the base 100. A rotating shaft 120 is rotatably connected to the bottom left side of the inner cavity of the mounting box 110. A first pulley 130 is fixedly connected to the middle of the outer wall of the rotating shaft 120. The end of the rotating shaft 120 passes through the mounting box 110 and extends to the top of the mounting box 110. A turntable 140 is fixedly connected to the end of the rotating shaft 120. A first motor 150 is fixedly connected to the bottom right side of the inner cavity of the base 100. A drive shaft 160 is fixedly connected to the end of the power output shaft of the 0. The end of the drive shaft 160 passes through the base 100 and extends into the inner cavity of the mounting box 110. A second pulley 170 is fixedly connected to the end of the drive shaft 160. The second pulley 170 is rotatably connected to the first pulley 130 via a belt. A third motor 310 is fixedly connected to the top of the vertical plate 300. A lead screw 320 is fixedly connected to the end of the power output shaft of the third motor 310. The end of the lead screw 320 passes through the vertical plate 300 and extends to the bottom of the inner cavity of the vertical plate 300. A movable block 330 is screwed to the outer wall of the rod 320. A lifting plate 340 is fixedly connected to the left side wall of the movable block 330. A fixed rod 350 is fixedly connected to the bottom of the lifting plate 340. A small disc 360 is fixedly connected to the end of the fixed rod 350. A pressing head 370 is sleeved on the outer wall of the small disc 360. A ball bearing 380 is rolled between the pressing head 370 and the small disc 360. The third motor 310 drives the lead screw 320 to rotate, causing the lead screw 320 to drive the movable block 330 to move downwards. The movable block 330 then... The lifting plate 340 is lowered, causing the pressing head 370 to press the bottle cap onto the turntable 140. Then, the first motor 150 drives the second pulley 170 at the end of the transmission shaft 160 to rotate, which in turn drives the first pulley 130 to rotate, thereby causing the rotating shaft 120 to rotate. The rotating shaft 120 then drives the turntable 140 to rotate, causing the turntable 140 to rotate and the bottle cap to rotate. At the same time, the pressing head 370, in cooperation with the ball bearing 380, also rotates with the bottle cap, ensuring that the bottle cap remains stable during the ring cutting process.
[0021] In summary, this allows the device to stably drive the bottle cap to perform the ring-cutting operation.
[0022] In practical use, those skilled in the art first place the bottle cap on the turntable 140. Then, the third motor 310 drives the lead screw 320 to rotate, causing the lead screw 320 to move the moving block 330 downward. The moving block 330 then drives the lifting plate 340 to descend, causing the pressing head 370 to press the bottle cap firmly onto the turntable 140. Next, the second motor 270 drives the gear 271 to rotate, causing the gear 271 to move the rack 231 up and down. This causes the rack 231 to move the movable plate 230, which in turn moves the cutting blade 260 at the end of the first electric push rod 250 up and down, thus pressing the cutting blade 260 down. 60. After adjusting to the appropriate height, the connecting plate 290 is moved to the right by the second electric push rod 280, so that the locking tooth 291 engages with the rack 231, thereby locking the rack 231. Then, the first electric push rod 250 drives the ring cutting blade 260 to move horizontally, so that the ring cutting blade 260 contacts the bottle cap. Finally, the first motor 150 drives the second pulley 170 at the end of the transmission shaft 160 to rotate, so that the second pulley 170 drives the first pulley 130 to rotate, thereby causing the rotating shaft 120 to rotate. Then, the rotating shaft 120 drives the turntable 140 to rotate, so that the turntable 140 drives the bottle cap to rotate and perform the ring cutting operation.
[0023] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0024] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A ring-cutting device for processing height-adjustable plastic bottle caps, characterized in that: The system includes a base (100), a support plate (200), and a vertical plate (300). The support plate (200) is fixedly connected to the top left side of the base (100), and the vertical plate (300) is fixedly connected to the top right side of the base (100). The support plate (200) has grooves (210) on its front and rear sidewalls. A slider (220) is slidably connected to the inner cavity of the grooves (210). A movable plate (230) is fixedly connected to the inner sidewall of the slider (220). A rack (231) is fixedly connected to the left sidewall of the movable plate (230), and a connecting block (240) is fixedly connected to the lower side of the right sidewall of the movable plate (230). A first electric actuator (250) is fixedly connected to the right side wall of the support plate (200), and a cutting ring blade (260) is fixedly connected to the end of the first electric actuator (250). A second motor (270) is fixedly connected to the upper side of the front side wall of the inner cavity of the support plate (200). A gear (271) is fixedly connected to the end of the power output shaft of the second motor (270). The gear (271) meshes with the rack (231). A second electric actuator (280) is fixedly connected to the upper side of the left side wall of the inner cavity of the support plate (200). A connecting plate (290) is fixedly connected to the end of the second electric actuator (280). A locking tooth (291) is integrally formed on the right side wall of the connecting plate (290).
2. The ring-cutting device for processing height-adjustable plastic bottle caps according to claim 1, characterized in that: A mounting box (110) is fixedly connected to the top center of the base (100). A rotating shaft (120) is rotatably connected to the bottom left side of the inner cavity of the mounting box (110). A first pulley (130) is fixedly connected to the middle of the outer side wall of the rotating shaft (120). The end of the rotating shaft (120) passes through the mounting box (110) and extends to the top of the mounting box (110). A turntable (140) is fixedly connected to the end of the rotating shaft (120).
3. The ring-cutting device for processing height-adjustable plastic bottle caps according to claim 1, characterized in that: A first motor (150) is fixedly connected to the bottom right side of the inner cavity of the base (100). A transmission shaft (160) is fixedly connected to the end of the power output shaft of the first motor (150). The end of the transmission shaft (160) passes through the base (100) and extends into the inner cavity of the mounting box (110). A second pulley (170) is fixedly connected to the end of the transmission shaft (160). The second pulley (170) is rotatably connected to the first pulley (130) through a belt.
4. The ring-cutting device for processing height-adjustable plastic bottle caps according to claim 1, characterized in that: A third motor (310) is fixedly connected to the top of the vertical plate (300), and a lead screw (320) is fixedly connected to the end of the power output shaft of the third motor (310). The end of the lead screw (320) passes through the vertical plate (300) and extends to the bottom of the inner cavity of the vertical plate (300).
5. The ring-cutting device for processing height-adjustable plastic bottle caps according to claim 4, characterized in that: A movable block (330) is screwed to the outer wall of the lead screw (320), and a lifting plate (340) is fixedly connected to the left side wall of the movable block (330).
6. The ring-cutting device for processing height-adjustable plastic bottle caps according to claim 5, characterized in that: The bottom of the lifting plate (340) is fixedly connected to a fixing rod (350), and the end of the fixing rod (350) is fixedly connected to a small disc (360).
7. The ring-cutting device for processing height-adjustable plastic bottle caps according to claim 6, characterized in that: A pressing head (370) is sleeved on the outer wall of the small disc (360), and a ball bearing (380) is rolled between the pressing head (370) and the small disc (360).
Citation Information
Patent Citations
Ring cutting device for plastic bottle cap production and processing
CN222819038U