A cutting device for plastic bottle production
By introducing a grinding component and a guiding component into the cutting equipment for plastic bottle production, the problems of the cutting device being unable to grind and having inflexible positioning have been solved, achieving smooth treatment of the bottle mouth and adaptability to various plastic bottles, thus improving the functionality of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN DONGCHUANG XINGYE PACKAGING CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-29
AI Technical Summary
Existing cutting devices for plastic bottle production cannot grind the cut edges, and their limiting function is not flexible enough to accommodate plastic bottles of different lengths.
A cutting device for producing plastic bottles was designed, which includes a grinding component and a guiding component. The grinding component grinds the bottle mouth through a cylinder, a limit frame, and a grinding disc, while the guiding component stably limits the plastic bottles of different lengths through a guide block and a drive component.
It achieves effective grinding of the cut edge of plastic bottles, enhances the smoothness of the bottle mouth, facilitates subsequent processing, and can adapt to plastic bottles of different lengths, improving the flexibility and stability of the limiting mechanism.
Smart Images

Figure CN224295471U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic bottle production technology, specifically relating to a cutting device for plastic bottle production. Background Technology
[0002] Plastic bottles are mainly made of materials such as polyethylene or polypropylene with the addition of various organic solvents. Plastic bottles widely use polyester (PET), polyethylene (PE), and polypropylene (PP) as raw materials. After adding appropriate organic solvents, they are heated at high temperatures and then molded into plastic containers through blow molding, extrusion blow molding, or injection molding. Plastic bottles produced by blow molding machines have a sealed bottle neck and cannot be used directly; the excess portion at the bottle neck needs to be cut off.
[0003] Chinese patent application number 202322751655.X discloses a cutting device for plastic bottle production, including a main body of equipment. The main body of equipment includes a worktable, the front end of which is rotatably connected to a conveyor belt via a drive shaft, and the rear end of the conveyor belt is rotatably connected to a support plate. A waste trough is provided in the middle of the support plate. By setting the main body of equipment, when in use, the user first places the plastic bottle on the conveyor belt. By setting a limit bar, the plastic bottle can be quickly limited to prevent it from rolling left and right. By setting a waste trough, a slider, an L-shaped placement plate, a motor, a rotating shaft, a cutting blade, a first electric telescopic rod, and a support base, the slider can limit the L-shaped placement plate when the first electric telescopic rod drives it to cut left and right, effectively increasing the practicality of the device.
[0004] The aforementioned disclosed patents have the following problems when used:
[0005] 1. After the device cuts the plastic bottle, it cannot grind the cut surface, which is not conducive to the subsequent processing and production of the plastic bottle and its practicality is not high.
[0006] 2. In actual use, this device only limits the plastic bottle by using a limiting strip, which cannot meet the limiting requirements of plastic bottles of different lengths. At the same time, because the position of the cutting blade is fixed, it is not convenient to flexibly cut the mouth of the plastic bottle. Utility Model Content
[0007] To address the problems mentioned in the background section, this invention provides a cutting device for plastic bottle production, characterized by its comprehensive grinding function, good guiding effect, and practicality.
[0008] To achieve the above objectives, the present invention provides the following technical solution: a cutting device for producing plastic bottles, comprising a workbench, a transmission belt inside the workbench, a limit strip on the surface of the transmission belt, a top plate on the top of the workbench, a second electric telescopic rod installed on the top surface of the top plate, a grinding assembly installed on one side of the top plate, and a guide assembly installed at the bottom of the top plate.
[0009] Preferably, the grinding assembly includes a cylinder, a support frame, a limiting frame, a grinding disc, a motor, a movable block, a screw, and a threaded block. The support frame is installed on one side of the top plate, and the cylinder is installed on the top of the support frame. The output end of the cylinder is fixedly connected to the limiting frame. A screw is provided on one side of the cylinder, and a threaded block is threadedly connected to the surface of the screw. A movable block is fixedly connected to the bottom of the threaded block, and a motor is installed at the bottom of the movable block. The grinding disc is provided at the output end of the motor.
[0010] Preferably, the grinding disc is provided with a grinding disc inside, and a handle is fixed to one end of the screw.
[0011] Preferably, the guide assembly includes a first side frame, a spring, a stop plate, a guide block, a movable plate, a second side frame, a guide rod, and a drive assembly. The first side frame is provided on the top of the worktable, and a spring is provided inside the first side frame. One end of the spring is connected to the stop plate. The second side frame is installed on one side of the first side frame, and a movable plate is provided inside the second side frame. A guide block is provided on the top of the movable plate, and a guide rod passes through the interior of the guide block. A drive assembly is installed on one side of the guide rod.
[0012] Preferably, the drive assembly includes a top block, a second motor, a second screw, a threaded plate, and a fixing plate. The top block is installed on the top of the second side frame, the second screw is disposed inside the top block, one end of the second screw is connected to the second motor, the surface of the second screw is threadedly connected to the threaded plate, and the fixing plate is fixedly connected to the end of the top block away from the second motor.
[0013] Preferably, protrusions are fixed to both sides of the abutment, and guide grooves are provided on both sides of the inner wall of the first side frame.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. By setting up a grinding component, this utility model enables the device to grind the cut plastic bottle mouth during actual use, thereby reducing burrs on the plastic bottle mouth, making the plastic bottle mouth smoother, facilitating further processing, improving the grinding function of the device, and enhancing its functionality.
[0016] 2. By setting a guide component, this utility model enables the device to limit the cutting of plastic bottles of different lengths when cutting them, and at the same time, it can adjust the position of the bottle mouth, which facilitates the cutting blade to process different plastic bottles flexibly. This improves the limiting function of the device and enhances its practicality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the grinding component of this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the guide component of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the drive component of this utility model;
[0021] In the diagram: 1. Workbench; 2. Limiting strip; 3. Transmission belt; 4. Grinding assembly; 41. Cylinder; 42. Support frame; 43. Limiting frame; 44. Grinding disc; 45. Motor; 46. Movable block; 47. Screw; 48. Threaded block; 5. Second electric telescopic rod; 6. Top plate; 7. Guide assembly; 71. First side frame; 72. Spring; 73. Support plate; 74. Guide block; 75. Movable plate; 76. Second side frame; 77. Guide rod; 78. Drive assembly; 781. Top block; 782. Second motor; 783. Second screw; 784. Threaded plate; 785. Fixed plate. Detailed Implementation
[0022] 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.
[0023] Example 1
[0024] Please see Figure 1-4 The present invention provides the following technical solution: a cutting device for producing plastic bottles, including a workbench 1, a transmission belt 3 is provided inside the workbench 1, a limit strip 2 is provided on the surface of the transmission belt 3, a top plate 6 is provided on the top of the workbench 1, a second electric telescopic rod 5 is installed on the top surface of the top plate 6, a grinding component 4 is installed on one side of the top plate 6, and a guide component 7 is provided at the bottom of the top plate 6.
[0025] Specifically, the grinding assembly 4 includes a cylinder 41, a support frame 42, a limiting frame 43, a grinding disc 44, a motor 45, a movable block 46, a screw 47, and a threaded block 48. The support frame 42 is installed on one side of the top plate 6, and the cylinder 41 is installed on the top of the support frame 42. The output end of the cylinder 41 is fixed to the limiting frame 43. The screw 47 is provided on one side of the cylinder 41. The threaded block 48 is threadedly connected to the surface of the screw 47. The movable block 46 is fixed to the bottom of the threaded block 48. The motor 45 is installed at the bottom of the movable block 46, and the grinding disc 44 is provided at the output end of the motor 45.
[0026] By adopting the above technical solution, when using the grinding component 4, the cylinder 41 is first started, which pushes the limiting frame 43 downward. The limiting frame 43 can limit the plastic bottle. After the limiting is completed, the position of the grinding disc 44 is adjusted according to the position of the plastic bottle mouth. The handle is turned to drive the screw 47 to rotate, which in turn drives the movable block 46 and the motor 45 to move through the threaded block 48. When the grinding disc 44 reaches the appropriate position, the motor 45 is started, which drives the grinding disc 44 to rotate. The grinding disc in the grinding disc 44 grinds the plastic bottle mouth, thereby smoothing the burrs on the plastic bottle mouth. This improves the bottle mouth grinding function of the device and enhances its functionality.
[0027] Specifically, the grinding disc 44 has a grinding pad inside, and a handle is fixed to one end of the screw 47.
[0028] By adopting the above technical solution, the grinding disc 44 is equipped with a grinding disc, which facilitates quick replacement of the grinding disc when it needs to be replaced. The handle at one end of the screw 47 makes it easy for the operator to rotate the screw 47, thus enhancing its practicality.
[0029] In this embodiment, when using the grinding component 4, the cylinder 41 is first activated, which pushes the limiting frame 43 downward. The limiting frame 43 can limit the plastic bottle. After the limiting is completed, the position of the grinding disc 44 is adjusted according to the position of the plastic bottle mouth. The handle is turned to drive the screw 47 to rotate, which in turn drives the movable block 46 and the motor 45 to move through the threaded block 48. When the grinding disc 44 reaches the appropriate position, the motor 45 is activated, which drives the grinding disc 44 to rotate. The grinding disc in the grinding disc 44 grinds the plastic bottle mouth, thereby smoothing the burrs on the plastic bottle mouth and improving the bottle mouth grinding function of the device. The grinding disc in the grinding disc 44 makes it easy to quickly replace the grinding disc when it needs to be replaced. The handle at one end of the screw 47 makes it easy for the operator to rotate the screw 47, which enhances its practicality.
[0030] Example 2
[0031] The difference between this embodiment and embodiment 1 is that, specifically, the guide assembly 7 includes a first side frame 71, a spring 72, a stop plate 73, a guide block 74, a movable plate 75, a second side frame 76, a guide rod 77, and a drive assembly 78. The first side frame 71 is provided on the top of the workbench 1. The spring 72 is provided inside the first side frame 71. One end of the spring 72 is connected to the stop plate 73. The second side frame 76 is installed on one side of the first side frame 71. The movable plate 75 is provided inside the second side frame 76. The guide block 74 is provided on the top of the movable plate 75. The guide rod 77 passes through the interior of the guide block 74. The drive assembly 78 is installed on one side of the guide rod 77.
[0032] By adopting the above technical solution, when using the guide component 7, the plastic bottle that needs to be cut is first placed on one side of the limiting strip 2, and then the plastic bottle is guided and limited by the abutment plate 73 and the movable plate 75. In actual use, this device can avoid the problem of misalignment between the bottle mouth and the bottle tail. When it is necessary to adjust the position of the plastic bottle cut, the drive component 78 drives the movable plate 75 to move towards the abutment plate 73, and at the same time, the guide block 74 slides synchronously on the surface of the guide rod 77, thereby further enhancing the stability of the movable plate 75 and making the cutting operation of the device more flexible.
[0033] Specifically, the drive assembly 78 includes a top block 781, a second motor 782, a second screw 783, a threaded plate 784, and a fixing plate 785. The top block 781 is mounted on the top of the second side frame 76. The second screw 783 is disposed inside the top block 781. One end of the second screw 783 is connected to the second motor 782. The threaded plate 784 is threadedly connected to the surface of the second screw 783. The fixing plate 785 is fixedly connected to the end of the top block 781 away from the second motor 782.
[0034] By adopting the above technical solution, when using the drive assembly 78, the second motor 782 is started, which drives the second screw 783 to rotate in the top block 781. Furthermore, the threaded plate 784 can drive the movable plate 75 to move, thereby facilitating the adjustment of the cut position of the plastic bottle. The movable plate 75 pushes the plastic bottle towards the abutment plate 73, which compresses the spring 72. At this time, the spring 72 contracts. The spring 72 and the abutment plate 73 can more stably limit one side of the plastic bottle, enhancing the stability of the device.
[0035] Specifically, protrusions are fixed to both sides of the abutment plate 73, and guide grooves are provided on both sides of the inner wall of the first side frame 71.
[0036] By adopting the above technical solution, the synchronous movement of the protrusion in the guide groove can further enhance the stability of the movement of the abutment 73 and avoid misalignment of the abutment 73.
[0037] In this embodiment, when using the guide assembly 7, the plastic bottle to be cut is first placed on one side of the limiting strip 2. Then, the plastic bottle is guided and limited by the abutment plate 73 and the movable plate 75. In actual use, this device can avoid the problem of misalignment between the bottle mouth and the bottle tail. When it is necessary to adjust the position of the plastic bottle cut, the drive assembly 78 drives the movable plate 75 to move towards the abutment plate 73. At the same time, the guide block 74 slides synchronously on the surface of the guide rod 77, thereby further enhancing the stability of the movable plate 75 and making the cutting operation of the device more flexible. When using the drive assembly 78, start... The second motor 782 drives the second screw 783 to rotate in the top block 781. The screw plate 784 further drives the movable plate 75 to move, which facilitates the adjustment of the cut position of the plastic bottle. The movable plate 75 pushes the plastic bottle towards the abutment plate 73, which compresses the spring 72. At this time, the spring 72 contracts. The spring 72 and the abutment plate 73 can provide a more stable limit on one side of the plastic bottle, enhancing the stability of the device. The synchronous movement of the protrusion in the guide groove can further enhance the stability of the movement of the abutment plate 73 and prevent the abutment plate 73 from being misaligned.
[0038] The structure and operating principle of the workbench 1, limiting strip 2, transmission belt 3, second electric telescopic rod 5, and top plate 6 in this utility model have been disclosed in a cutting device for plastic bottle production disclosed in Chinese patent application number 202322751655.X.
[0039] The working principle and usage process of this utility model: This utility model is an adjustment for a cutting device used in the production of plastic bottles. When using the grinding component 4, firstly, the cylinder 41 is started, which pushes the limiting frame 43 downward. The limiting frame 43 can limit the plastic bottle. After the limiting is completed, the position of the grinding disc 44 is adjusted according to the position of the plastic bottle mouth. Turning the handle drives the screw 47 to rotate, which in turn drives the movable block 46 and the motor 45 to move through the threaded block 48. When the grinding disc 44 reaches the appropriate position, the motor 45 is started. The grinding disc 44 rotates, and the grinding discs in the grinding disc 44 grind the mouth of the plastic bottle, thus smoothing out the burrs on the bottle mouth and improving the bottle mouth grinding function of the device. The grinding disc 44, with its grinding discs, allows for quick replacement of the grinding discs when needed. The handle at one end of the screw 47 allows the operator to easily rotate the screw 47, enhancing its practicality. This utility model relates to an adjustment of a cutting device for plastic bottle production. First, the plastic bottle to be cut is placed at the limit position. The plastic bottle is guided and limited by the abutment plate 73 and the movable plate 75 on one side of the strip 2. In actual use, this device can avoid the problem of misalignment between the bottle mouth and the bottle tail. When it is necessary to adjust the position of the plastic bottle cut, the drive assembly 78 drives the movable plate 75 to move towards the abutment plate 73. At the same time, the guide block 74 slides synchronously on the surface of the guide rod 77, thereby further enhancing the stability of the movable plate 75 and making the cutting operation of the device more flexible. When using the drive assembly 78, the second motor 782 is started, and the second motor 782 drives the... The second screw 783 rotates in the top block 781, and further drives the movable plate 75 to move through the threaded plate 784, thereby facilitating the adjustment of the cut position of the plastic bottle. The movable plate 75 pushes the plastic bottle towards the abutment plate 73, which compresses the spring 72. At this time, the spring 72 contracts. The spring 72 and the abutment plate 73 can provide a more stable limit on one side of the plastic bottle, enhancing the stability of the device. The synchronous movement of the protrusion in the guide groove can further enhance the stability of the movement of the abutment plate 73 and prevent the abutment plate 73 from being misaligned.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.
Claims
1. A cutting device for producing plastic bottles, comprising a workbench (1), wherein a transmission belt (3) is provided inside the workbench (1), a limit strip (2) is provided on the surface of the transmission belt (3), a top plate (6) is provided on the top of the workbench (1), and a second electric telescopic rod (5) is installed on the top surface of the top plate (6), characterized in that: A grinding assembly (4) is installed on one side of the top plate (6), and a guide assembly (7) is provided at the bottom of the top plate (6).
2. The cutting device for producing plastic bottles according to claim 1, characterized in that: The grinding assembly (4) includes a cylinder (41), a support frame (42), a limiting frame (43), a grinding disc (44), a motor (45), a movable block (46), a screw (47), and a threaded block (48). The support frame (42) is installed on one side of the top plate (6), and the cylinder (41) is installed on the top of the support frame (42). The output end of the cylinder (41) is fixed to the limiting frame (43). The screw (47) is provided on one side of the cylinder (41). The threaded block (48) is threadedly connected to the surface of the screw (47). The movable block (46) is fixed to the bottom of the threaded block (48). The motor (45) is installed at the bottom of the movable block (46), and the grinding disc (44) is provided at the output end of the motor (45).
3. The cutting device for producing plastic bottles according to claim 2, characterized in that: The grinding disc (44) is equipped with a grinding disc inside, and a handle is fixed to one end of the screw (47).
4. The cutting device for producing plastic bottles according to claim 1, characterized in that: The guide assembly (7) includes a first side frame (71), a spring (72), a stop plate (73), a guide block (74), a movable plate (75), a second side frame (76), a guide rod (77), and a drive assembly (78). The first side frame (71) is provided on the top of the workbench (1). The spring (72) is provided inside the first side frame (71). One end of the spring (72) is connected to the stop plate (73). The second side frame (76) is installed on one side of the first side frame (71). The movable plate (75) is provided inside the second side frame (76). The guide block (74) is provided on the top of the movable plate (75). The guide rod (77) passes through the interior of the guide block (74). The drive assembly (78) is installed on one side of the guide rod (77).
5. A cutting device for producing plastic bottles according to claim 4, characterized in that: The drive assembly (78) includes a top block (781), a second motor (782), a second screw (783), a threaded plate (784), and a fixing plate (785). The top block (781) is mounted on the top of the second side frame (76). The second screw (783) is disposed inside the top block (781). One end of the second screw (783) is connected to the second motor (782). The threaded plate (784) is threadedly connected to the surface of the second screw (783). The fixing plate (785) is fixedly connected to the end of the top block (781) away from the second motor (782).
6. The cutting device for producing plastic bottles according to claim 4, characterized in that: The two sides of the abutment (73) are fixed with protrusions, and the inner walls of the first side frame (71) are provided with guide grooves.