Sealing cutter

Abstract

The utility model discloses a sealing cutter, which relates to the technical field of packaging machinery and comprises at least one cutter component. A copper plate and at least one heating belt are further included; the heating belt is made of a ceramic material and is tightly attached to the upper surface of the copper plate; the cutter assembly is mounted on the lower surface of the copper plate; a heating coil is arranged in the heating belt, and the two ends of the heating coil are connected with the circuit board. By optimizing the design of the heating structure and the cutter assembly, the problems that in the prior art, heating is uneven, the structure is complex, energy consumption is high, and the cutting effect is poor are solved. By optimizing the design of the heating structure and the cutter assembly, the problems that in the prior art, heating is uneven, the structure is complex, energy consumption is high, and the cutting effect is poor are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to packaging machinery technical field, concretely relates to a kind of sealing cutter for sealing and cutting, and it is especially suitable for sealing and cutting of plastic film, composite material and other packaging materials. BACKGROUND

[0002] In the packaging industry, sealing and cutting are key steps in the packaging process. Traditional sealing cutters usually use a single heating element and cutter structure, which has the following problems:

[0003] Uneven heating: traditional heating elements are mostly made of metal, with low heat conduction efficiency and uneven distribution, resulting in unstable sealing quality and problems such as loose sealing or local overheating damage to materials.

[0004] Complex structure: in existing technology, the connection between the heating element and the cutter is complex, making maintenance and replacement difficult and increasing the cost of use.

[0005] High energy consumption: traditional heating methods are inefficient and have high energy consumption, which does not meet the requirements of energy saving and environmental protection.

[0006] Poor cutting effect: the single design of the cutter easily produces burrs or material adhesion during cutting, affecting the appearance and sealing of the package.

[0007] In view of the above problems, there is an urgent need for a sealing cutter that is evenly heated, simple in structure, energy-efficient and excellent in cutting effect. SUMMARY

[0008] The utility model aims to overcome the defects and deficiencies of the prior art and provide a sealing cutter that optimizes the heating structure and cutter assembly design to solve the problems of uneven heating, complex structure, high energy consumption and poor cutting effect in traditional technology.

[0009] The utility model realizes the following technical solutions:

[0010] A sealing cutter includes at least one cutter assembly, a copper plate and at least one heating strip. The heating strip is made of ceramic material and is tightly attached to the upper surface of the copper plate. The cutter assembly is installed on the lower surface of the copper plate. The heating strip has a heating coil inside, and the two ends of the heating coil are connected to a circuit board.

[0011] Further, the cutter assembly is provided with at least one or more.

[0012] Further, the heating coil is made of nickel wire.

[0013] Furthermore, it also includes a circuit board, on which a copper plate is mounted via a circuit support frame; the circuit board has two U-shaped solder bars; the positive and negative poles of the heating coil are respectively connected to the two U-shaped nickel bars; the U-shaped nickel bars are connected to the power supply via a control center.

[0014] Furthermore, the cutting assembly includes an annular cutter head and a copper nut; the annular cutter head is mounted on the lower surface of the copper plate, and the copper nut is located inside the annular cutter head; a spring is provided between the copper nut and the copper plate.

[0015] Furthermore, the cutting assembly also includes a copper bolt; the copper plate has a through hole; the copper bolt passes through the through hole and is threadedly connected to a copper nut; the spring is fitted onto the copper bolt.

[0016] Furthermore, the central axes of the copper bolt, copper nut, and annular cutter head coincide.

[0017] Furthermore, the annular cutter head includes an annular wall and a top wall, which are integral structures; the top wall is provided with a through hole for a copper bolt; one end of the spring abuts against the inside of the top wall, and the other end abuts against the copper nut.

[0018] Furthermore, the lower edge of the annular cutter head is serrated.

[0019] Furthermore, it also includes a temperature sensor, which is connected to the control center.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] Uniform and efficient heating: The design of ceramic heating belt combined with copper plate ensures fast and uniform heat conduction, significantly improving sealing quality and efficiency.

[0022] Energy-saving and environmentally friendly: The nickel wire heating coil and precise temperature control system reduce energy consumption and meet the requirements of green production.

[0023] Precise cutting: The serrated ring blade and spring pressure design ensure clean and crisp cuts without burrs or material adhesion.

[0024] Simple and reliable structure: Modular design and integrated components reduce potential failure points and facilitate installation, maintenance and replacement.

[0025] Intelligent temperature control: The cooperation between temperature sensors and the control center avoids the risk of overheating and extends the service life of the equipment. Attached Figure Description

[0026] Figure 1 This is an overall structural diagram of an embodiment of the present utility model;

[0027] Figure 2 yes Figure 1A schematic diagram of the rear structure;

[0028] Figure 3 This is a schematic diagram of the structure of the cutting head assembly according to an embodiment of the present invention;

[0029] Figure 4 yes Figure 1 Front view;

[0030] Figure 5 This is a schematic diagram of the circuit board structure in an embodiment of this utility model.

[0031] In the diagram: 1. Copper bolt, 4. Cutter assembly, 2. 1-4. Copper plate, 3. Heating plate, 5. Temperature sensor, 6. Support frame, 7. Circuit board, 1-1. Copper bolt, 1-2. Spring, 1-3. Copper nut, 1-5. Ring cutter head. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0033] Reference Figure 1 , Figure 2 and Figure 4 This embodiment includes a copper plate, a cutting blade assembly, a heating plate, and a support frame;

[0034] The copper plate serves as the primary heat carrier and conductor. A groove is cut into its top, and a heating plate is installed within this groove, positioned in a partially or completely enclosed state. A cutting assembly is mounted at the bottom of the copper plate. The copper nut and annular cutter on the cutting assembly are used for sealing and trimming the plastic film, respectively. The heating plate transfers heat to the copper bolts and annular cutter of the cutting assembly through the copper plate.

[0035] In this embodiment, the heating plate is made of ceramic material and contains a nickel wire coil. When the coil is energized, the ceramic heats up. Alternatively, a ceramic heating coil can be directly mounted on a copper plate. In this embodiment, the copper plate has four slots, each containing a heating plate, for a total of four heating plates.

[0036] A support frame is installed on one side of the top of the copper plate. The support frame is used to fix the circuit board in place. For details of the circuit board structure, please refer to [reference needed]. Figure 5 The main body of the circuit board consists of two solder bars, one U-shaped and the other H-shaped. The coils of the four heating plates are connected to the two solder bars at both ends, and are connected to the external control center and power supply circuit through the solder bars. The exposed part of the heating coil in the ceramic heating element is wrapped with a PTFE sheath for isolation.

[0037] Reference Figure 3The cutting assembly in this embodiment includes a copper bolt, a copper nut, a ring-shaped cutting head, and a spring. Multiple through holes are arrayed in a rectangular pattern on the copper plate, with the through holes designed to avoid the heating plate. The copper bolt is a semi-threaded bolt, with only a section of thread at the bottom.

[0038] The copper bolt of the cutter assembly passes through the through hole and the through hole of the annular cutter head and is threaded into the copper nut. The spring is located inside the annular cutter head and is fitted onto the copper bolt. One end of the spring abuts against the inside of the top wall of the annular cutter head, and the other end abuts against the copper nut.

[0039] When the plastic film is sealed, the copper plate presses down, and the copper nut first contacts the plastic film. As the copper plate continues to press down, the copper nut begins to retract. The spring presses back and presses the top wall of the annular cutter head against the groove of the copper plate. The annular cutter head cannot retract, and its protrusion is higher than the copper nut, thus thermally cutting the plastic film. The copper bolt then heat-seals the plastic film.

[0040] This embodiment also includes a control center and a power supply circuit; a temperature sensor for testing the temperature of the copper plate is provided on the copper plate, and the power supply circuit, temperature sensor, and circuit board are all connected to the control center.

[0041] The power supply circuit supplies power to the heating plate and temperature sensor through the control center.

[0042] A temperature sensor detects the temperature of the copper plate and sends the temperature signal to the control center. The control center adjusts the voltage at the input terminal of the heating plate to control its temperature. The control center monitors the heating plate temperature in real time through the temperature sensor. The control center can be implemented using a PLC. The control circuit and power supply circuit of this patent can achieve various functions, which will not be described in detail here.

[0043] The above description illustrates preferred applications of this utility model and is not intended to limit the scope of protection of this utility model. All technical solutions employing equivalent substitutions or transformations are within the scope of protection of this utility model.

Claims

1. A sealing cutter, comprising at least one cutting assembly; characterized in that, It also includes a copper plate and at least one heating band; the heating band is made of ceramic material and is in close contact with the upper surface of the copper plate; the cutter assembly is mounted on the lower surface of the copper plate; a heating coil is provided inside the heating band, and the two ends of the heating coil are connected to the circuit board.

2. A sealing cutter according to claim 1, characterized in that, The cutting blade assembly has at least one or more blades.

3. A sealing cutter according to claim 1, characterized in that, The heating coil is made of nickel wire.

4. A sealing cutter according to claim 1, characterized in that, It also includes a circuit board, on which a copper plate is mounted via a circuit support frame; the circuit board has two U-shaped solder bars; the positive and negative poles of the heating coil are respectively connected to the two U-shaped nickel bars; the U-shaped nickel bars are connected to the power supply via a control center.

5. A sealing cutter according to claim 1, characterized in that, The cutting assembly includes an annular cutter head and a copper nut; the annular cutter head is mounted on the lower surface of the copper plate, and the copper nut is located inside the annular cutter head; a spring is provided between the copper nut and the copper plate.

6. A sealing cutter according to claim 5, characterized in that, The cutting assembly also includes a copper bolt; the copper plate has a through hole; the copper bolt passes through the through hole and is threadedly connected to a copper nut; the spring is fitted onto the copper bolt.

7. A sealing cutter according to claim 6, characterized in that, The central axes of the copper bolt, copper nut, and annular cutter head coincide.

8. A sealing cutter according to claim 6, characterized in that, The annular cutter head includes an annular wall and a top wall, which are integral structures; the top wall has a through hole for a copper bolt; one end of the spring rests against the inside of the top wall, and the other end rests against a copper nut.

9. A sealing cutter according to claim 5, characterized in that, The lower edge of the annular cutter head is serrated.

10. A sealing cutter according to claim 4, characterized in that, It also includes a temperature sensor, which is connected to the control center.

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