Cutter structure for packaging bag cutting equipment

Abstract

The utility model discloses a cutter structure for packaging bag cutting equipment, and relates to the field of cutter structures for cutting equipment. The cutting device comprises a machine base, a heat sealing assembly and a cutting assembly, through the arrangement of a scrap removing mechanism, side lugs, a first installation base, a wedge-shaped face, an ultrasonic transducer, a medium layer and a friction layer, when a blade is lifted to a certain height to make a blade back make contact with the scrap removing mechanism, the ultrasonic transducer starts to work, and at the moment, the blade back makes contact with the scrap removing mechanism; the ultrasonic waves can generate high-frequency vibration under the cooperation of the dielectric layer and the friction layer, and the high-frequency vibration can quickly shake off plastic chips attached to the blade, so that the plastic chips are prevented from being accumulated on the blade, and the cutting surface of the blade can be ensured to recover a sharp and flat state again; and the dielectric layer and the friction layer prevent the ultrasonic transducer from being in direct contact with the tool bit, so that the ultrasonic transducer is prevented from physically damaging the tool bit in the working process.

Description

Technical Field

[0001] This utility model relates to the field of cutting blade structure for packaging bag cutting equipment, specifically a cutting blade structure for packaging bag cutting equipment. Background Technology

[0002] When existing extruded blow-molded plastic bags are cut from two layers into one, the cutting blade may produce defects, rough edges, and the cutting size cannot be adjusted. By improving the cutting blade structure of the packaging machine's punching equipment, the horizontal cutting method is changed to vertical cutting, which achieves defect-free cutting and adjustable cutting size, increases the applicability of the cutting equipment, and improves the quality of the cut plastic bags.

[0003] However, in the long-term use of packaging bag cutting equipment that mainly uses vertical cutting, the cutting blade structure may cause the plastic to be squeezed and rubbed due to excessive cutting speed or pressure. This may result in plastic debris remaining on the blade. These debris will change the original cutting shape of the blade, making the cutting surface no longer sharp and flat. When cutting packaging bags, it will be unable to cut according to the predetermined position and size, resulting in uneven cuts on the packaging bags. At the same time, it will also accelerate the wear of the blade and shorten its service life. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a cutting blade structure for packaging bag cutting equipment, so as to solve the technical problems of existing packaging bag cutting equipment cutting blade structures causing plastic debris residue due to excessive cutting speed or pressure, which in turn changes the original cutting shape of the blade, makes the cutting surface no longer sharp and flat, makes it impossible to accurately cut the packaging bag according to the predetermined position and size, causes the packaging bag cut to be uneven, and accelerates blade wear and shortens the blade service life.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cutting blade structure for a packaging bag cutting device, comprising a cutting device, the cutting device including a base, a heat sealing assembly, and a cutting assembly, the cutting assembly including a blade holder, a blade head mounted on the inner side of the blade holder via the blade holder, a chip removal mechanism provided at the rear end of the blade head, the chip removal mechanism including two side ears, the two side ears being fixedly connected to the blade holder by bolts, a first mounting base provided between the two side ears, a wedge-shaped surface provided on the back of the first mounting base, multiple screw holes opened on the wedge-shaped surface, and multiple ultrasonic transducers installed in the screw holes, a dielectric layer provided inside the first mounting base, and a friction layer provided on the outer surface of the first mounting base, the friction layer being in contact with the dielectric layer.

[0006] By adopting the above technical solution, the chip removal mechanism can effectively remove plastic chips generated by the cutter head during the cutting process, avoiding chip accumulation that affects cutting quality and cutter head life. The ultrasonic waves emitted by the ultrasonic transducer are transmitted to the cutter head surface through the dielectric layer and friction layer, and the high-frequency vibration is used to break down and shake off the chips, ensuring the cleanliness of the cutter head surface.

[0007] Furthermore, the plurality of ultrasonic transducers are arranged in a linear array at equal intervals, the dielectric layer is made of silicone grease, and the friction layer is made of rubber.

[0008] By adopting the above technical solution, the linear array of equally spaced ultrasonic transducers enables ultrasonic waves to uniformly cover the cutter head surface, improving the chip removal effect. The dielectric layer composed of silicone grease has good sound transmission performance, which can efficiently transmit ultrasonic waves to the cutter head surface. The friction layer composed of rubber increases the friction with the cutter head surface, which helps to better transmit ultrasonic energy. At the same time, the elasticity of rubber can also buffer the impact of ultrasonic waves on the cutter head, protecting the cutter head from damage.

[0009] Furthermore, a detection mechanism is provided at the front end of the cutter head, the detection mechanism including a second mounting base, and a motor is provided on one side of the second mounting base.

[0010] By adopting the above technical solution, the testing agency can monitor the status of the cutting head in real time to ensure cutting quality. The motor provides power for the movement of the testing agency, enabling it to flexibly adjust its position for comprehensive testing of the cutting head.

[0011] Furthermore, a lead screw is rotatably connected to the inner side of the second mounting base, and the output end of the motor passes through the second mounting base and is fixedly connected to the lead screw.

[0012] By adopting the above technical solution, the motor drives the lead screw to rotate, and the rotation of the lead screw can be converted into linear motion, thereby realizing the precise adjustment of the position of the detection component in the detection mechanism, so that it can accurately align with different parts of the cutter head for detection.

[0013] Furthermore, a slide bar is provided below the lead screw, and a lead screw seat is screwed onto the lead screw, with the lead screw seat slidably connected to the slide bar.

[0014] By adopting the above technical solution, the slide bar provides a stable sliding track for the lead screw seat, ensuring that the lead screw seat will not deviate when it moves in a straight line under the drive of the lead screw, thereby improving the stability and accuracy of the detection mechanism's movement.

[0015] Furthermore, an adjustment groove is provided at the bottom of the lead screw seat, and a vision detector is rotatably connected inside the adjustment groove via a damping shaft.

[0016] By adopting the above technical solution, the design of the adjustment groove and the damping shaft allows the vision detector to flexibly adjust the probe angle so as to better align the blade head for detection. The damping shaft can provide a certain amount of friction so that the vision detector can remain stable after the angle is adjusted and will not shake randomly.

[0017] Furthermore, the probe of the vision detector is oriented towards the blade tip, and the vision detector is used to check the sharpness of the blade tip.

[0018] By adopting the above technical solution, the visual detector can acquire image information of the cutting edge in real time, and accurately judge the sharpness of the cutting edge through image analysis algorithms, providing an important basis for the normal operation of the equipment and the guarantee of cutting quality.

[0019] Furthermore, a rolling roller is provided at one end of the machine base, on which a plastic bag roll is mounted. A heat sealing assembly is provided on one side of the top of the machine base, and the heat sealing assembly is used to heat seal one side of the plastic bag. A cutting assembly is provided on one side of the heat sealing assembly.

[0020] By adopting the above technical solution, the roller and the plastic bag roll provide the cutting equipment with the plastic bag raw material to be cut. The heat sealing component first heat seals one side of the plastic bag, and then the cutting component cuts the heat-sealed plastic bag. The components work together to realize the automated processing of packaging bags.

[0021] Furthermore, a cylinder is provided on the top of the tool holder, and the bottom of the cylinder piston rod is fixedly connected to the tool holder.

[0022] By adopting the above technical solution, the cylinder provides power for the up and down movement of the cutter head. When cutting is required, the cylinder piston rod extends, pushing the cutter holder and the cutter head downward to achieve the cutting function. After cutting is completed, the cylinder piston rod retracts, the cutter head is raised, and it waits for the next cutting. This design makes the cutting action more stable and reliable.

[0023] In summary, the present invention has the following main advantages:

[0024] This invention incorporates a chip removal mechanism, side ears, a first mounting base, a wedge-shaped surface, an ultrasonic transducer, a dielectric layer, and a friction layer. When the blade is raised to a certain height, causing the blade back to contact the chip removal mechanism, the ultrasonic transducer begins to operate. At this time, the ultrasonic waves, in conjunction with the dielectric layer and the friction layer, generate high-frequency vibrations. These high-frequency vibrations can quickly dislodge plastic debris adhering to the blade, preventing the accumulation of plastic debris on the blade. This ensures that the cutting surface of the blade can regain its sharpness and smoothness. Furthermore, the dielectric layer and the friction layer prevent the ultrasonic transducer from directly contacting the blade head, thus preventing physical damage to the blade head during operation. For example, direct contact between the ultrasonic transducer and the blade head may cause scratches, wear, and other problems on the blade head surface due to high-frequency vibration and friction.

[0025] This invention features a detection mechanism where a motor drives a lead screw to rotate. The lead screw seat moves linearly along the lead screw and slide bar, thereby moving the vision detector accurately to different positions on the cutting edge of the blade for scanning. The damping shaft in the adjustment slot provides the vision detector with a flexible angle adjustment function, allowing the probe angle of the vision detector to be easily adjusted via the damping shaft, enabling it to be more accurately aligned with the cutting edge of the blade. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;

[0028] Figure 3 This is a partial three-dimensional structural diagram of the chip removal mechanism of this utility model;

[0029] Figure 4 This is a partial rear-view three-dimensional structural diagram of the chip removal mechanism of this utility model;

[0030] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the chip removal mechanism of this utility model;

[0031] Figure 6 This is a partial three-dimensional structural diagram of the testing mechanism of this utility model.

[0032] In the diagram: 1. Cutting equipment; 101. Machine base; 102. Roller; 103. Heat sealing assembly; 104. Cutting assembly; 1041. Tool holder; 1042. Cylinder; 1043. Tool holder; 1044. Tool head; 2. Chip removal mechanism; 201. Side lug; 202. First mounting base; 203. Wedge-shaped surface; 204. Ultrasonic transducer; 205. Medium layer; 206. Friction layer; 3. Detection mechanism; 301. Second mounting base; 302. Lead screw; 303. Lead screw seat; 304. Slide rod; 305. Motor; 306. Adjustment groove; 307. Vision detector; 4. Plastic bag. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] A cutting blade structure for a packaging bag cutting device, such as Figures 1-4 As shown, the device includes a cutting device 1, which includes a base 101, a heat sealing assembly 103, and a cutting assembly 104. The cutting assembly 104 includes a blade holder 1041, on the inner side of which a blade head 1044 is mounted via a blade holder 1043. A chip removal mechanism 2 is provided at the rear end of the blade head 1044. The chip removal mechanism 2 includes two side ears 201, which are fixedly connected to the blade holder 1041 by bolts. A first mounting base 202 is provided between the two side ears 201. A wedge-shaped surface 203 is provided on the back of the first mounting base 202, and multiple screw holes are provided on the wedge-shaped surface 203. Multiple ultrasonic transducers 204 are installed inside. A dielectric layer 205 is provided inside the first mounting base 202, and a friction layer 206 is provided on the outer surface of the first mounting base 202. The friction layer 206 is attached to the dielectric layer 205. This structure can effectively utilize the ultrasonic waves emitted by the ultrasonic transducers 204 to be transmitted to the surface of the cutter head 1044 through the dielectric layer 205 and the friction layer 206. This causes the plastic debris attached to the cutter head 1044 to quickly disintegrate and fall off under high-frequency vibration, avoiding the impact of debris accumulation on cutting quality and cutter head life, and greatly improving the stability and reliability of the cutting equipment.

[0035] See Figure 1 , Figure 2 , Figure 3 , Figure 4Multiple ultrasonic transducers 204 are arranged in a linear array at equal intervals. The dielectric layer 205 is made of silicone grease, and the friction layer 206 is made of rubber. The linear array of equally spaced ultrasonic transducers 204 enables ultrasonic waves to uniformly cover the surface of the cutter head 1044, ensuring that each part can achieve sufficient chip removal effect. The silicone grease dielectric layer 205 has good sound transmission performance, which can efficiently transmit ultrasonic waves to the surface of the cutter head 1044. The rubber friction layer 206 increases the friction with the surface of the cutter head, which helps to better transmit ultrasonic energy. At the same time, the elasticity of the rubber can also buffer the impact of ultrasonic waves on the cutter head, protect the cutter head from damage, and extend the service life of the cutter head.

[0036] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The front end of the cutter head 1044 is provided with a detection mechanism 3. The detection mechanism 3 includes a second mounting base 301. A motor 305 is provided on one side of the second mounting base 301. This structure enables the detection mechanism 3 to use the motor 305 to provide power and realize flexible detection of the status of the cutter head 1044. The motor 305 can drive the relevant components of the detection mechanism 3 to move, so as to perform comprehensive and accurate detection on different parts of the cutter head, detect problems in the cutter head in time, and ensure cutting quality.

[0037] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The inner side of the second mounting base 301 is rotatably connected to the lead screw 302. The output end of the motor 305 passes through the second mounting base 301 and is fixedly connected to the lead screw 302. When the motor 305 rotates, it can drive the lead screw 302 to rotate synchronously. The rotation of the lead screw 302 can be converted into linear motion, thereby accurately controlling the position of the detection component in the detection mechanism 3, so that it can accurately align with different parts of the cutter head 1044 for detection, thus improving the accuracy and reliability of the detection.

[0038] See Figure 1 , Figure 2 , Figure 3 , Figure 4 A slide bar 304 is provided below the lead screw 302. A lead screw seat 303 is screwed onto the lead screw 302, and the lead screw seat 303 is slidably connected to the slide bar 304. The slide bar 304 provides a stable sliding track for the lead screw seat 303, ensuring that the lead screw seat 303 will not deviate when it moves in a straight line under the drive of the lead screw 302. This structure improves the stability and accuracy of the movement of the detection mechanism 3, ensuring that the detection component can move accurately according to the predetermined trajectory, thereby more accurately detecting the condition of the cutter head.

[0039] See Figure 1 , Figure 2, Figure 3 , Figure 4 The bottom of the lead screw seat 303 is provided with an adjustment groove 306. The interior of the adjustment groove 306 is rotatably connected to the vision detector 307 via a damping shaft. The design of the adjustment groove 306 and the damping shaft allows the vision detector 307 to flexibly adjust the probe angle for better alignment with the cutter head 1044 for inspection. The damping shaft can provide a certain friction force, so that the vision detector 307 can remain stable after the angle is adjusted and will not shake randomly, thus ensuring the stability and accuracy of the inspection.

[0040] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The probe of the vision detector 307 is set to point towards the blade head 1044, and the vision detector 307 is used to check the sharpness of the blade head 1044. This setting enables the vision detector 307 to acquire image information of the blade edge of the blade head 1044 in real time, accurately judge the sharpness of the blade head through image analysis algorithms, promptly detect the problem of insufficient blade head sharpness, avoid the decline in cutting quality caused by blade head problems, and ensure that the cutting equipment is always in good working condition.

[0041] See Figure 1 , Figure 2 , Figure 3 , Figure 4 A roller 102 is provided at one end of the machine base 101, and a plastic bag roll 4 is installed on the roller 102. A heat sealing assembly 103 is provided on one side of the top of the machine base 101, and the heat sealing assembly 103 is used to heat seal one side of the plastic bag. A cutting assembly 104 is provided on one side of the heat sealing assembly 103. This layout forms a complete packaging bag processing flow. The roller 102 and the plastic bag roll 4 provide the plastic bag raw material to be cut. The heat sealing assembly 103 first heat seals one side of the plastic bag, and then the cutting assembly 104 cuts the heat-sealed plastic bag. The components work together to realize the automated processing of packaging bags, improving production efficiency and processing quality.

[0042] See Figure 1 , Figure 2 , Figure 3 , Figure 4 A cylinder 1042 is installed on the top of the tool holder 1041. The bottom of the piston rod of the cylinder 1042 is fixedly connected to the tool holder 1043. The cylinder 1042 provides stable and reliable power for the up and down movement of the cutter head 1044. When cutting is required, the piston rod of the cylinder 1042 extends, pushing the tool holder 1043 and the cutter head 1044 downward to achieve the cutting function. After cutting is completed, the piston rod of the cylinder 1042 retracts, and the cutter head 1044 is raised to wait for the next cutting. This design makes the cutting action more precise and controllable, and improves the automation and stability of the cutting equipment.

[0043] The implementation principle of this embodiment is as follows: Before the cutting equipment 1 is ready to cut the packaging bag, the detection mechanism 3 starts working, the motor 305 starts, and drives the lead screw 302 to rotate. Since the lead screw 302 is screwed to the lead screw seat 303 and the lead screw seat 303 is slidably connected to the slide rod 304, the lead screw seat 303 will move linearly along the lead screw 302 and the slide rod 304. The visual detector 307 in the adjustment groove 306 at the bottom of the lead screw seat 303 flexibly adjusts the angle through the damping shaft so that its probe is accurately aligned with the cutting edge of the cutter head 1044. The visual detector 307 performs high-definition imaging of the cutting edge of the cutter head 1044 and uses advanced image analysis algorithms to accurately calculate key parameters such as the wear degree and sharpness of the cutting edge. If the detection result shows that the sharpness of the cutter head 1044 is insufficient, the operator is prompted to handle it, such as replacing the cutter head or repairing it. If the cutter head is in good condition, the equipment enters the ready-to-cut state.

[0044] When it is necessary to cut the packaging bag, the plastic bag roll 4 on the roller 102 is conveyed forward by the traction device at the rear end of the cutting device 1. When it reaches the heat sealing assembly 103, the heat sealing assembly 103 heat seals one side of the plastic bag. After the heat sealing is completed, the plastic bag continues to be conveyed forward to the cutting assembly 104. At this time, the piston rod of the cylinder 1042 at the top of the blade holder 1041 extends out, pushing the blade holder 1043 and the blade head 1044 to move downward to cut the plastic bag.

[0045] During the long-term cutting process, the cutter head 1044 will return to the drop zone. At this time, multiple ultrasonic transducers 204 arranged in a linear array at equal intervals will emit ultrasonic waves. The ultrasonic waves will be transmitted to the surface of the cutter head 1044 through the dielectric layer 205 and the friction layer 206. The high-frequency vibration generated will shake off the plastic debris attached to the cutter head 1044, thus preventing plastic debris residue from affecting the cutting quality and the life of the cutter head.

[0046] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A cutting blade structure for a packaging bag cutting device, characterized in that: The device includes a cutting device (1), which includes a base (101), a heat sealing assembly (103), and a cutting assembly (104). The cutting assembly (104) includes a blade holder (1041), and a blade head (1044) is mounted on the inner side of the blade holder (1041) via a blade holder (1043). A chip removal mechanism (2) is provided at the rear end of the blade head (1044). The chip removal mechanism (2) includes two side ears (201), which are bolted to the blade holder (1041). A fixed connection is provided between the two side ears (201) and a first mounting base (202) is provided on the back of the first mounting base (202). A wedge-shaped surface (203) is provided on the back of the first mounting base (202). A plurality of screw holes are provided on the wedge-shaped surface (203) and a plurality of ultrasonic transducers (204) are installed in the screw holes. A dielectric layer (205) is provided inside the first mounting base (202) and a friction layer (206) is provided on the outer surface of the first mounting base (202). The friction layer (206) is in contact with the dielectric layer (205).

2. The cutting blade structure for the packaging bag cutting equipment according to claim 1, characterized in that: Multiple ultrasonic transducers (204) are arranged in a linear array at equal intervals, the dielectric layer (205) is made of silicone grease, and the friction layer (206) is made of rubber.

3. The cutting blade structure for the packaging bag cutting equipment according to claim 1, characterized in that: The front end of the cutter head (1044) is provided with a detection mechanism (3), the detection mechanism (3) includes a second mounting base (301), and a motor (305) is provided on one side of the second mounting base (301).

4. The cutting blade structure for the packaging bag cutting equipment according to claim 3, characterized in that: The inner side of the second mounting base (301) is rotatably connected to a lead screw (302), and the output end of the motor (305) passes through the second mounting base (301) and is fixedly connected to the lead screw (302).

5. The cutting blade structure for the packaging bag cutting equipment according to claim 4, characterized in that: A slide rod (304) is provided below the lead screw (302), and a lead screw seat (303) is screwed onto the lead screw (302), and the lead screw seat (303) is slidably connected to the slide rod (304).

6. The cutting blade structure for the packaging bag cutting equipment according to claim 5, characterized in that: The bottom of the lead screw seat (303) is provided with an adjustment groove (306), and a vision detector (307) is rotatably connected inside the adjustment groove (306) via a damping shaft.

7. The cutting blade structure for the packaging bag cutting equipment according to claim 6, characterized in that: The probe of the vision detector (307) is set to point towards the blade tip (1044), and the vision detector (307) is used to check the sharpness of the blade tip (1044).

8. The cutting blade structure for the packaging bag cutting equipment according to claim 1, characterized in that: One end of the base (101) is provided with a roller (102), on which a plastic bag roll (4) is installed. A heat sealing assembly (103) is provided on one side of the top of the base (101), and the heat sealing assembly (103) is used to heat seal one side of the plastic bag. A cutting assembly (104) is provided on one side of the heat sealing assembly (103).

9. The cutting blade structure for the packaging bag cutting equipment according to claim 1, characterized in that: A cylinder (1042) is provided on the top of the tool holder (1041), and the bottom of the piston rod of the cylinder (1042) is fixedly connected to the tool holder (1043).

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