Servo drive type plastic bottle opening trimming machine and control method thereof
By designing trimming and steering components in a servo-driven plastic bottle neck trimming machine, the trimming blade can move up and down and rotate 180°, solving the problem of overheating of the trimming blade, extending the blade life, improving the trimming effect, and ensuring equipment stability and production efficiency.
Patent Information
- Application Number
- CN202511455862.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-13
- Publication Date
- 2025-12-23
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In servo-driven plastic bottle neck trimming machines, the trimming blades are prone to overheating during high-speed operation and long-term continuous use, which affects their service life and trimming effect.
A servo-driven plastic bottle neck trimming machine was designed, employing a trimming component and a steering component. The trimming blade moves up and down and rotates 180°, utilizing the gap for heat dissipation. The stability and adaptability of the trimming blade are ensured through the cooperation of the positioning component and positioning wheel.
It effectively prevents the trimming blade from overheating, extends the service life of the trimming blade, improves the trimming effect and equipment stability, reduces reliance on cooling devices, and improves production efficiency and product consistency.
Smart Images
Figure CN121179620A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of plastic bottle mouth processing, in particular to a servo-driven plastic bottle mouth trimming machine and a control method thereof. BACKGROUND
[0002] The servo-driven plastic bottle mouth trimming machine is an automatic equipment for post-processing of plastic bottle blow molding, which mainly realizes efficient and accurate trimming of the bottle mouth burr through precise control of rotation, lifting and cutting actions of the servo motor. The equipment is usually equipped with a cutting device and a polishing head, which can automatically complete the deburring and polishing of the bottle mouth, improve the production efficiency and product consistency, and reduce the manual operation error and safety hazards. The trimming machine with a single cutter for trimming the plastic bottle mouth can cause the temperature of the trimming cutter to rise during the process of trimming the plastic bottle at a high equipment running speed and for a long time without interruption, which can affect the service life of the trimming cutter and the trimming effect of the plastic bottle mouth. Therefore, the present application provides a servo-driven plastic bottle mouth trimming machine and a control method thereof. SUMMARY
[0003] The present application provides a servo-driven plastic bottle mouth trimming machine and a control method thereof to solve the problem that the temperature of the trimming cutter rises during the process of trimming the plastic bottle at a high equipment running speed and for a long time without interruption, which can affect the service life of the trimming cutter and the trimming effect of the plastic bottle mouth.
[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: A servo-driven plastic bottle mouth trimming machine and a control method thereof, comprising a servo motor, the top end of the main shaft of the servo motor is fixedly connected with an electric telescopic assembly, and the fixed ends of the electric telescopic assembly are both installed with trimming assemblies; the trimming assembly comprises an adjusting telescopic plate, the moving end of the adjusting telescopic plate is connected with a trimming cutter through a steering assembly, the two sides of the trimming cutter are both installed with positioning assemblies, the inner side of the lower end of the positioning assembly is installed with a positioning wheel, and the middle of the positioning wheel is rotationally connected with a positioning shaft; the positioning assembly comprises a fixed frame, a side slot is formed in one side of the upper end of the fixed frame, positioning elastic sheets are fixedly connected with the two sides of the middle of the fixed frame through rivets, and a toothed plate is fixedly connected with one end of the middle of the fixed frame through a connecting screw; the steering assembly comprises a connecting column, the outer side of the top end of the connecting column is fixedly connected with a connecting shaft, and a ratchet overrunning clutch is installed on the outer side of the connecting column.
[0005] As a further optimization of the present application, the trimming knife comprises a knife body, trimming grooves are formed at both ends of the knife body, trimming blades are fixedly connected inside the trimming grooves, and vertical grooves are formed on the side of the trimming knife.
[0006] As a further optimization of the present application, two trimming knives are provided, the trimming knives are parallel to each other, the trimming knives are arranged on the upper end of the bottle opening of the plastic bottle, and the vertical grooves formed on the side of the trimming knife are matched with the positioning elastic pieces.
[0007] As a further optimization of the present application, a connecting frame is fixedly connected to the side of the main shaft of the servo motor, a middle positioning plate is fixedly connected in the middle of the connecting frame, and the middle position of the middle positioning plate is slidingly connected with the fixed end of the electric telescopic assembly.
[0008] As a further optimization of the present application, two adjusting telescopic plates are provided, the adjusting telescopic plate is provided with an opening at one end, the vertical projection of the adjusting telescopic plate is U-shaped, and steering assemblies are installed on both sides of the opening end of the adjusting telescopic plate.
[0009] As a further optimization of the present application, the projection of the fixing frame from the positioning shaft to the knife body is U-shaped, and the projection of the fixing frame from the trimming knife to the electric telescopic assembly is L-shaped.
[0010] As a further optimization of the present application, the teeth of the toothed plate are matched with the teeth arranged outside the ratchet overrunning clutch, and the teeth arranged outside the ratchet overrunning clutch are annularly and equidistantly distributed on one side of the fixing frame.
[0011] As a further optimization of the present application, the positioning shaft arranged on any side of the trimming knife is provided with two positioning shafts, the two positioning shafts and the positioning wheel are one-to-one corresponding, and the positioning shaft and the positioning wheel are arranged on the upper and lower sides of the steering assembly, respectively.
[0012] As a further optimization of the present application, the connecting column is fixedly connected between the connecting column and the knife body, the connecting column and the connecting shaft are coaxially arranged, and the connecting shaft is rotationally connected with the moving end of the adjusting telescopic plate.
[0013] As a further optimization of the present application, the following steps are included: Step 1: The device is installed on the upper end of the plastic bottle trimming section of the production line, after installation, the industrial power supply is connected and debugged, after debugging, the plastic bottles that need to be trimmed are transferred to the lower end of the device through the feeding device of the production line. Step 2: the electric telescopic assembly drives the trimming assembly to move downwards, and the trimming blade arranged in the trimming cutter contacts the edge of the upper end of the plastic bottle mouth; after the contact is completed, the main shaft is driven to rotate by the servo motor; in the process of rotation of the main shaft, the connecting frame, the trimming assembly and the intermediate positioning plate are synchronously rotated, and thus the trimming work of the plastic bottle is completed; Step 3: after the trimming of the plastic bottle is completed, the electric telescopic assembly is contracted, and the trimming cutter is lifted upwards; in the process, the telescopic plate drives the steering assembly to move upwards; in the process of movement, the steering assembly contacts the toothed plate, and thus the trimming cutter is controlled to rotate by 180°, so that the trimming groove in the upper end in the previous trimming process is rotated to the lower end, for the trimming process of the next plastic bottle; The positioning elastic sheet and the positioning wheel are used for positioning the trimming cutter in the process of upward and downward movement. Step 4: the plastic bottle is transferred to the next process, and then the trimming of the plastic bottle required in the next process is performed at the station.
[0014] Compared with the prior art, the beneficial effects of the present application are: 1. In the present application, the trimming assembly is arranged; in the process of trimming the plastic bottle mouth, the trimming cutter needs to move up and down to adapt to the gap of different bottle mouths, so as to automatically complete the conversion of the trimming cutter edge; the gap is used for heat dissipation, so as to prevent the trimming cutter from being overheated in the trimming process, affect the service life and the trimming effect, and does not need an external cooling device for cooling the trimming cutter, which is more environmentally friendly. 2. In the present application, the steering assembly and the positioning assembly are arranged; in the process of upward and downward movement of the trimming cutter, the trimming cutter is stably rotated by 180°; and in the process of upward and downward movement of the trimming cutter, the positioning elastic sheet and the positioning wheel are arranged, so as to further improve the stability in the process of upward and downward movement. 3. In the present application, the electric telescopic assembly and the connecting frame are arranged; the trimming cutter can be connected with the central control device in the trimming device, so as to realize the upward and downward movement of the trimming cutter, and the stability in the process of upward and downward movement of the trimming cutter and the rotation of the trimming cutter driven by the servo motor can be ensured. DETAILED DESCRIPTION
[0015] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the trimming assembly structure of the present application; Figure 3 It is a schematic diagram of the trimming assembly structure of the present application; Figure 2 It is an enlarged structure schematic diagram of position A in the present application; Figure 4 It is an enlarged structure schematic diagram of position B in the present application; Figure 2 Figure 5 Positioning assembly structure schematic diagram of the application; Figure 6 Trimming knife structure schematic diagram of the application; Figure 7 Electric telescopic assembly internal structure schematic diagram of the application.
[0016] In the figure: 1, plastic bottle; 2, servo motor; 3, electric telescopic assembly; 4, connecting frame; 5, trimming assembly; 51, adjusting telescopic plate; 52, positioning assembly; 521, fixed frame; 522, edge slot; 523, positioning elastic sheet; 524, toothed plate; 525, connecting screw; 53, trimming knife; 531, knife body; 532, vertical slot; 533, trimming slot; 534, trimming blade; 54, positioning shaft; 55, positioning wheel; 56, steering assembly; 561, connecting column; 562, connecting shaft; 563, ratchet overrunning clutch; 6, intermediate positioning plate. DETAILED DESCRIPTION
[0017] Please refer to Figures 1-7 , the application provides a technical solution: A servo drive type plastic bottle mouth trimming machine and its control method, comprising a servo motor 2, the top end of the main shaft of the servo motor 2 is fixedly connected with an electric telescopic assembly 3, and the fixed end of the electric telescopic assembly 3 is provided with trimming assemblies 5 on both sides; the trimming assembly 5 comprises an adjusting telescopic plate 51, the moving end of the adjusting telescopic plate 51 is connected with a trimming knife 53 through a steering assembly 56, trimming knives 53 are installed on both sides of the trimming knife 53, and positioning assemblies 52 are installed on the lower end of the positioning assembly 52; a positioning wheel 55 is installed on the inner side of the positioning wheel 55, and a positioning shaft 54 is rotatably connected in the middle of the positioning wheel 55; the positioning assembly 52 comprises a fixed frame 521, the fixed frame 521 is provided with an edge slot 522 on one side of the upper end, positioning elastic sheets 523 are fixedly connected to both sides of the middle of the fixed frame 521 through rivets, and a toothed plate 524 is fixedly connected to one end of the middle of the fixed frame 521 through a connecting screw 525; the steering assembly 56 comprises a connecting column 561, the outer side of the top end of the connecting column 561 is fixedly connected with a connecting shaft 562, and a ratchet overrunning clutch 563 is installed on the outer side of the connecting column 561.
[0018] As a further implementation of the technical solution of the present application, the trimming knife 53 comprises a knife body 531, trimming slots 533 are formed at both ends of the knife body 531, trimming blades 534 are fixedly connected in the trimming slots 533, and vertical slots 532 are formed on the side of the trimming knife 53. Through the above arrangement, the trimming blades 534 arranged in the two trimming knives 53 can be alternately used to trim the position of the plastic bottle mouth, effectively preventing the trimming blades 534 from overheating during long-time operation and affecting the trimming effect on the plastic bottle mouth. As a further implementation of the scheme, the trimming knife 53 is provided with two, the two trimming knives 53 are parallel, the trimming knife 53 is arranged on the upper end of the bottle mouth of the plastic bottle 1, and the vertical groove 532 formed in the side of the trimming knife 53 is matched with the positioning elastic sheet 523.
[0019] As a further implementation of the scheme, the servo motor 2 is fixedly connected with the connecting frame 4 on the side of the main shaft, the middle positioning plate 6 is fixedly connected in the middle of the connecting frame 4, and the middle position of the middle positioning plate 6 is slidably connected with the fixed end of the electric telescopic assembly 3. Through the above arrangement, the middle position of the connecting frame 4 can be further supported, and the stability of the connecting frame 4 as a whole and the stability of the connecting frame 4 during the up-down movement are effectively improved. As a further implementation of the scheme, the adjusting telescopic plate 51 is provided with two, one end of the adjusting telescopic plate 51 is provided as an opening, the vertical projection of the adjusting telescopic plate 51 is U-shaped, and the turning assembly 56 is installed on the two sides of the opening end of the adjusting telescopic plate 51. Through the above arrangement, the trimming knives 53 arranged on the two sides can be stably limited, and the size of the plastic bottle mouth can be adjusted to be suitable for trimming of plastic bottles of different models, so that the application range of the equipment as a whole in the actual use process is improved. As a further implementation of the scheme, the projection of the fixed frame 521 from the positioning shaft 54 to the cutter body 531 is U-shaped, and the projection of the fixed frame 521 from the trimming knife 53 to the electric telescopic assembly 3 is L-shaped. Through the above arrangement, the up-down movement of the trimming knife 53 can be limited, and at the same time, the interference between the trimming knife 53 and the fixed frame 521 during the rotation of the trimming knife 53 can be prevented, so that the problem that the trimming knife 53 cannot rotate occurs. As a further implementation of the scheme, the toothed plate 524 is matched with the teeth arranged outside the ratchet overrunning clutch 563, and the teeth arranged outside the ratchet overrunning clutch 563 are arranged on one side of the fixed frame 521 in a ring shape at equal intervals. Through the above arrangement, the trimming knife 53 can rotate during the upward movement, and cannot rotate during the downward movement, so that the trimming knife 53 can rotate by 180° during one up-down reciprocating stroke. As a further implementation of the scheme, the positioning shaft 54 arranged on any side of the trimming knife 53 is provided with two, the two positioning shafts 54 are one-to-one corresponding with the positioning wheels 55, and the positioning shaft 54 and the positioning wheel 55 are arranged on the upper and lower sides of the turning assembly 56 respectively. The positioning shaft 54 and the positioning wheel 55 are coaxially arranged. Through the above arrangement, the stability of the equipment as a whole during the actual operation process can be further improved. As a further implementation of the present scheme, the connecting column 561 is fixedly connected with the cutter body 531, the connecting column 561 is coaxially arranged with the connecting shaft 562, and the connecting shaft 562 is rotationally connected with the moving end of the adjusting telescopic plate 51. Through the above arrangement, the stability of the whole steering assembly 56 during the operation of the equipment can be effectively improved. As a further implementation of the present scheme, the following steps are included: Step 1: Install the whole device at the upper end of the plastic bottle mouth trimming section of the production line. After installation, connect the industrial power supply and debug. After debugging, use the feeding device of the production line to transfer the plastic bottles that need to be trimmed to the lower end of the whole device. Step 2: Control the electric telescopic assembly 3 to move downward with the trimming assembly 5, and make the trimming blade 534 arranged inside the trimming cutter 53 contact the upper end edge of the plastic bottle mouth. After contact, control the servo motor 2 to drive the main shaft to rotate, which drives the connecting frame 4, the trimming assembly 5, and the intermediate positioning plate 6 to rotate synchronously, thereby completing the trimming of the plastic bottle. Step 3: After the trimming of the plastic bottle is completed, the electric telescopic assembly 3 is retracted to lift the trimming cutter 53 upward. During this process, the adjusting telescopic plate 51 drives the steering assembly 56 to move upward, and during the movement, the steering assembly 56 contacts the toothed plate 524, thereby controlling the trimming cutter 53 to rotate 180°, so that the trimming groove 533 at the upper end in the previous trimming process is rotated to the lower end for the trimming process of the next plastic bottle. Among them, the positioning elastic sheet 523 and the positioning wheel 55 are used for positioning the trimming cutter 53 during the upward and downward movement. Step 4: The plastic bottle is transferred to the next process, and the next plastic bottle trimming is performed at this station.
[0020] In this paper, specific examples are used to explain the principles and implementation methods of the present application. The above examples are only used to help understand the method and its core idea. The above description is only the preferred embodiment of the present application. It should be noted that due to the limitation of language expression, there are infinite specific structures. For ordinary technical personnel in this technical field, without departing from the principles of the present application, some improvements, refinements or changes can be made, and the above technical features can be combined in an appropriate way. These improvements, refinements, changes or combinations, or the application of the inventive concept and technical solution to other fields without improvement, shall be regarded as the protection scope of the present application.
Claims
1. A servo-driven plastic bottle neck trimming machine, comprising a servo motor (2), characterized in that: The servo motor (2) has an electric telescopic assembly (3) fixedly connected to the top of its spindle, and trimming assemblies (5) are installed on both sides of the fixed end of the electric telescopic assembly (3). The trimming assembly (5) includes an adjustable telescopic plate (51). The movable end of the adjustable telescopic plate (51) is connected to the trimming knife (53) via a steering assembly (56). Positioning assemblies (52) are installed on both sides of the trimming knife (53). A positioning wheel (55) is installed on the inner side of the lower end of the positioning assembly (52). A positioning shaft (54) is rotatably connected in the middle of the positioning wheel (55). The positioning component (52) includes a fixing frame (521), a side groove (522) is provided on one side of the upper end of the fixing frame (521), and positioning elastic pieces (523) are fixedly connected to both sides of the middle of the fixing frame (521) by rivets. A toothed plate (524) is fixedly connected to the middle of one end of the fixing frame (521) by connecting screws (525). The steering assembly (56) includes a connecting post (561), a connecting shaft (562) is fixedly connected to the top outer side of the connecting post (561), and a ratchet overrunning clutch (563) is installed on the outer side of the connecting post (561).
2. The servo-driven plastic bottle neck trimming machine according to claim 1, characterized in that: The trimming knife (53) includes a knife body (531), and trimming grooves (533) are provided at both ends of the knife body (531). A trimming blade (534) is fixedly connected inside the trimming groove (533), and a vertical groove (532) is provided on the side of the trimming knife (53).
3. The servo-driven plastic bottle neck trimming machine according to claim 1, characterized in that: Two trimming blades (53) are provided, and the two trimming blades (53) are parallel to each other. The trimming blades (53) are set at the upper end of the mouth of the plastic bottle (1). The vertical groove (532) opened on the side of the trimming blade (53) is adapted to the positioning elastic piece (523).
4. The servo-driven plastic bottle neck trimming machine according to claim 1, characterized in that: The servo motor (2) has a connecting frame (4) fixedly connected to the side of the spindle. The connecting frame (4) has a middle positioning plate (6) fixedly connected in the middle. The middle position of the middle positioning plate (6) is slidably connected to the fixed end of the electric telescopic component (3).
5. A servo-driven plastic bottle neck trimming machine according to claim 1, characterized in that: Two adjustable telescopic plates (51) are provided. One end of the adjustable telescopic plate (51) is open. The vertical projection of the adjustable telescopic plate (51) is U-shaped. Steering components (56) are installed on both sides of the open end of the adjustable telescopic plate (51).
6. The servo-driven plastic bottle neck trimming machine according to claim 1, characterized in that: The projection of the fixing frame (521) from the positioning shaft (54) to the blade body (531) is U-shaped, and the projection of the fixing frame (521) from the trimming blade (53) to the electric telescopic assembly (3) is L-shaped.
7. A servo-driven plastic bottle neck trimming machine according to claim 1, characterized in that: The toothed plate (524) is adapted to the teeth provided on the outside of the ratchet overrunning clutch (563), and the teeth of the ratchet overrunning clutch (563) are provided on one side of the fixed frame (521) in a ring-shaped equidistant distribution.
8. A servo-driven plastic bottle neck trimming machine according to claim 1, characterized in that: The trimming knife (53) has two positioning shafts (54) on each side. The two positioning shafts (54) correspond one-to-one with the positioning wheel (55). The positioning shafts (54) and the positioning wheel (55) are respectively located on the upper and lower sides of the steering assembly (56). The positioning shafts (54) and the positioning wheel (55) are coaxially arranged.
9. A servo-driven plastic bottle neck trimming machine according to claim 1, characterized in that: The connecting column (561) is fixedly connected to the blade body (531), the connecting column (561) and the connecting shaft (562) are coaxially arranged, and the connecting shaft (562) is rotatably connected to the moving end of the adjusting telescopic plate (51).
10. A control method for a servo-driven plastic bottle neck trimming machine according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Install the entire equipment at the upper end of the plastic bottle neck trimming section of the production line. After installation, connect the external industrial power supply and debug it. After debugging, use the feeding device of the production line to transfer the plastic bottles that need to be trimmed to the lower end of the entire equipment. Step 2: Control the electric telescopic component (3) to drive the trimming component (5) to move downwards, and make the trimming blade (534) inside the trimming knife (53) contact the upper edge of the plastic bottle mouth. After the contact is completed, control the servo motor (2) to drive the spindle to rotate. During the rotation of the spindle, the connecting frame (4), the trimming component (5) and the intermediate positioning plate (6) rotate synchronously, thereby completing the trimming work of the plastic bottle. Step 3: After the plastic bottle is trimmed, the electric telescopic component (3) retracts and lifts the trimming knife (53) upward. During this process, the telescopic plate (51) is adjusted to drive the steering component (56) to move upward. During the movement, the steering component (56) contacts the toothed plate (524), thereby controlling the trimming knife (53) to rotate 180°, so that the trimming groove (533) which was at the upper end in the previous trimming process rotates to the lower end for the next plastic bottle trimming process. Among them, the positioning elastic plate (523) and the positioning wheel (55) are used for positioning the trimming knife (53) during its up and down movement; Step 4: The plastic bottle is transferred to the next process, and then the next necessary plastic bottle trimming is performed at this station.