A plastic packaging heat sealing mechanism

Abstract

The utility model relates to the field of plastic packaging, and specifically is a plastic packaging heat sealing mechanism, including the mounting support, one side fixed connection of mounting support has electric push rod, and the telescopic end fixed connection of electric push rod has heat sealing cutter, and the inner wall fixed connection of mounting support has the installation sliding pipe, the utility model discloses through the dismounting mechanism and can replace heat sealing cap regularly, reached the effective barrier that the molten plastic infiltrated sliding clearance, promoted heat sealing precision and equipment operation stability, the effect suitable for high -speed automatic plastic packaging production line, solved in the heat sealing process, high temperature will make the partial melting of plastic film and stick together, but part molten plastic is easy to overflow and stick in heat sealing cutter and sliding guide or sliding mouth contact area, after long -term operation, these residual gum will accumulate and harden, cause cutter to slide not smoothly, positioning deviation even jam, the problem of serious influence heat sealing precision and equipment life.

Description

Technical Field

[0001] This utility model relates to the field of plastic packaging, specifically a heat-sealing mechanism for plastic packaging. Background Technology

[0002] Plastic packaging machinery refers to a class of specialized equipment used for molding, filling, sealing, labeling, and packaging plastic materials. It is widely used in various industries such as food, pharmaceuticals, daily chemicals, electronics, and agriculture. The main function of this type of machinery is to process plastic raw materials or semi-finished products into packaging containers, or to encapsulate products with plastic materials to achieve purposes such as protecting goods, extending shelf life, facilitating transportation, and improving appearance.

[0003] In existing plastic packaging machinery, the heat sealing mechanism typically includes a heating element, a heat sealing cutter, and its guiding sliding structure. During the heat sealing process, high temperatures cause the plastic film to partially melt and adhere. However, some of the molten plastic easily overflows and adheres to the contact area between the heat sealing cutter and the sliding guide or sliding port. After long-term operation, these residual adhesives will accumulate and harden, leading to problems such as poor cutter sliding, positioning deviation, or even jamming, which seriously affect the heat sealing accuracy and equipment lifespan. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, during the heat sealing process, high temperatures cause the plastic film to partially melt and adhere. However, some of the molten plastic easily overflows and adheres to the contact area between the heat sealing tool and the sliding guide or sliding port. After long-term operation, these residual adhesives will accumulate and harden, leading to problems such as poor tool sliding, positioning deviation, or even jamming, which seriously affect the heat sealing accuracy and equipment life. This utility model proposes a plastic packaging heat sealing mechanism.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a plastic packaging heat sealing mechanism, including a mounting bracket, an electric push rod fixedly connected to one side of the mounting bracket, a heat sealing cutter fixedly connected to the telescopic end of the electric push rod, an installation slide tube fixedly connected to the inner wall of the mounting bracket, a docking card box fixedly connected to one side of the installation slide tube, and a disassembly mechanism provided on one side of the installation slide tube.

[0006] The disassembly mechanism includes a heat-sealing cover, which is slidably connected to the inner wall of the mounting slide tube. A moving block is fixedly connected to one side of the heat-sealing cover, and a sliding lever is fixedly connected to one side of the moving block. A rotating shaft is rotatably connected to the inner wall of the docking box. A cam is fixedly connected to the surface of the rotating shaft. The surface of the cam is tightly fitted with the circular groove on the surface of the sliding lever. A limit plate is fixedly connected to the surface of the cam, and a knob is fixedly connected to the top of the rotating shaft.

[0007] Preferably, a prompting piece is fixedly connected to the top of the docking card box, and a lever is fixedly connected to the top of the mounting slide tube.

[0008] Preferably, a limiting block is fixedly connected to the top of the heat-sealing cutter, and the inner wall of the limiting block is slidably connected to the surface of the heat-sealing cutter.

[0009] Preferably, a support slide rod is fixedly connected to one side of the heat-sealing tool, and the surface of the support slide rod is slidably connected to the inner wall of the mounting bracket.

[0010] Preferably, a positioning block is fixedly connected to one side of the heat-sealing cap, and the surface of the positioning block is slidably connected to the inner wall of the mounting slide tube.

[0011] Preferably, one side of the mounting bracket is fixedly connected to a fixing seat, and the number of fixing seats is four.

[0012] Preferably, a connecting rod is fixedly connected to one side of the mounting bracket, and a sleeve rod is fixedly connected to one side of the connecting rod.

[0013] The advantages of this utility model are:

[0014] This invention allows for periodic replacement of the heat-sealing cap via a disassembly mechanism, effectively preventing molten plastic from seeping into the sliding gap, thus improving heat-sealing accuracy and equipment operational stability. It is suitable for high-speed automated plastic packaging production lines. The invention solves the problem that during heat sealing, high temperatures cause the plastic film to partially melt and adhere, but some molten plastic easily overflows and adheres to the contact area between the heat-sealing blade and the sliding guide rail or sliding opening. After long-term operation, these residual adhesives accumulate and harden, leading to poor blade sliding, positioning deviations, or even jamming, severely affecting heat-sealing accuracy and equipment lifespan. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a first-view structural diagram of the present invention;

[0017] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0018] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A;

[0019] Figure 4 This is a schematic diagram of the structure of the heat-sealing cap in this utility model;

[0020] Figure 5 This is a schematic diagram of the disassembly mechanism in this utility model;

[0021] Figure 6 This is a schematic diagram of the docking card box in this utility model;

[0022] Figure 7 This is a schematic diagram of the second-view structure of the present invention;

[0023] Figure 8 This is a cross-sectional structural diagram of the connecting rod in this utility model.

[0024] In the diagram: 1. Mounting bracket; 2. Fixed base; 3. Electric push rod; 4. Support slide rod; 5. Heat sealing cutter; 6. Limit block; 7. Mounting slide tube; 8. Disassembly mechanism; 801. Heat sealing cap; 802. Moving block; 803. Sliding lever; 804. Rotating shaft; 805. Knob; 806. Cam; 807. Limit plate; 9. Connecting rod; 10. Toggle block; 11. Indicator plate; 12. Connecting card box; 13. Positioning block; 14. Sleeve rod. Detailed Implementation

[0025] 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 scope of protection of the present utility model.

[0026] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0027] This application discloses a heat-sealing mechanism for plastic packaging. (Refer to...) Figures 1-8 A heat sealing mechanism for plastic packaging includes a mounting bracket 1, an electric push rod 3 fixedly connected to one side of the mounting bracket 1, a heat sealing cutter 5 fixedly connected to the telescopic end of the electric push rod 3, a mounting slide tube 7 fixedly connected to the inner wall of the mounting bracket 1, a docking card box 12 fixedly connected to one side of the mounting slide tube 7, and a disassembly mechanism 8 provided on one side of the mounting slide tube 7.

[0028] The disassembly mechanism 8 includes a heat-sealing cover 801, which is slidably connected to the inner wall of the mounting slide tube 7. A moving block 802 is fixedly connected to one side of the heat-sealing cover 801, and a sliding lever 803 is fixedly connected to one side of the moving block 802. A rotating shaft 804 is rotatably connected to the inner wall of the docking box 12. A cam 806 is fixedly connected to the surface of the rotating shaft 804. The surface of the cam 806 is tightly fitted with the circular groove on the surface of the sliding lever 803. A limit plate 807 is fixedly connected to the surface of the cam 806. A knob 805 is fixedly connected to the top of the rotating shaft 804. An external heating device is used to... The heat-sealing blade 5 can be heated. When a plastic bag is placed between two sets of mounting slide tubes 7, the heat-sealing blade 5 can be clamped by controlling the electric push rod 3. The heat on the surface of the heat-sealing blade 5 seals the plastic bag. When the heat-sealing blade 5 retracts under the power of the electric push rod 3, the plastic residue adhering to the surface of the heat-sealing blade 5 will be blocked by the heat-sealing cap 801. When using the equipment for a long time, the sliding lever 803 can be released by rotating the knob 805 to drive the cam 806. The user can then pinch the lever 10 to remove the heat-sealing cap 801 for replacement.

[0029] Reference Figure 1 and Figure 3 A prompting piece 11 is fixedly connected to the top of the docking card box 12, and a lever 10 is fixedly connected to the top of the mounting slide tube 7. The prompting piece 11 installed on the docking card box 12 can be used to remind the user of the rotation direction of the cam 806 so that the heat sealing cover 801 can be fixed to one side of the mounting slide tube 7 or loosened. The lever 10 installed on the mounting slide tube 7 makes it convenient for the user to remove the heat sealing cover 801.

[0030] Reference Figure 1 The top of the heat sealing cutter 5 is fixedly connected to a limiting block 6. The inner wall of the limiting block 6 is slidably connected to the surface of the heat sealing cutter 5. When the limiting block 6 on the heat sealing cutter 5 is used, it can limit the position of the heat sealing cutter 5 in the mounting slide tube 7, which can prevent the heat sealing cutter 5 on one side from sliding out too much and affecting the sealing of the plastic packaging bag.

[0031] Reference Figure 1 A support slide rod 4 is fixedly connected to one side of the heat sealing cutter 5. The surface of the support slide rod 4 is slidably connected to the inner wall of the mounting bracket 1. The support slide rod 4 installed on one side of the heat sealing cutter 5 can support the heat sealing cutter 5 to slide stably in the mounting bracket 1, so that the heat sealing cutter 5 can seal the plastic packaging bag.

[0032] Reference Figure 4 and Figure 7A positioning block 13 is fixedly connected to one side of the heat-sealing cover 801. The surface of the positioning block 13 is slidably connected to the inner wall of the mounting slide tube 7. The positioning block 13 installed on one side of the heat-sealing cover 801 can be used to assist the sliding rod 803 in docking with the docking box 12, so that it slides into the round hole of the docking box 12.

[0033] Reference Figure 1 A mounting bracket 1 is fixedly connected to a mounting base 2 on one side. There are four mounting bases 2. The mounting bases 2 can be fixedly connected to the external bracket so that the plastic packaging bag can be moved between the two sets of mounting slide tubes 7.

[0034] Reference Figure 1 and Figure 8 A connecting rod 9 is fixedly connected to one side of the mounting bracket 1, and a sleeve rod 14 is fixedly connected to one side of the connecting rod 9. The connecting rod 9 installed on one side of the mounting bracket 1 can be used to limit the position of the plastic packaging bag and prevent it from shifting during the movement of the plastic packaging bag.

[0035] Working principle: First, the fixing base 2 is fixedly installed on the external bracket. The heat sealing blade 5 can be heated by the external heating device. The plastic packaging bag is placed between the two sets of mounting slide tubes 7. The heat sealing blade 5 is clamped by controlling the electric push rod 3, so that the heat on the surface of the heat sealing blade 5 seals the plastic packaging bag. When the heat sealing blade 5 is reset by the electric push rod 3, the plastic residue adhering to the surface of the heat sealing blade 5 is blocked by the heat sealing cap 801. During long-term use of the equipment, the heat sealing cap... Excessive plastic residue adhering to the surface of the cover 801 can affect the use of the heat sealing tool 5. The user can remove the heat sealing cover 801 by rotating the knob 805 to drive the cam 806 to release the sliding lever 803, and then pinch the lever 10 to remove the heat sealing cover 801 for replacement. The replaced heat sealing cover 801 is slid into the square groove of the mounting slide tube 7, and the sliding lever 803 is slid into the docking box 12. Rotating the knob 805 will drive the cam 806 to lock the docking box 12 and the sliding lever 803, thus completing the replacement of the heat sealing cover 801.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A heat-sealing mechanism for plastic packaging, comprising a mounting bracket (1), characterized in that: An electric push rod (3) is fixedly connected to one side of the mounting bracket (1), a heat sealing tool (5) is fixedly connected to the telescopic end of the electric push rod (3), an installation slide tube (7) is fixedly connected to the inner wall of the mounting bracket (1), a docking card box (12) is fixedly connected to one side of the installation slide tube (7), and a disassembly mechanism (8) is provided on one side of the installation slide tube (7). The disassembly mechanism (8) includes a heat-sealing cover (801), which is slidably connected to the inner wall of the mounting slide tube (7). A moving block (802) is fixedly connected to one side of the heat-sealing cover (801), and a sliding lever (803) is fixedly connected to one side of the moving block (802). A rotating shaft (804) is rotatably connected to the inner wall of the docking box (12). A cam (806) is fixedly connected to the surface of the rotating shaft (804). The surface of the cam (806) is tightly fitted with the circular groove on the surface of the sliding lever (803). A limit plate (807) is fixedly connected to the surface of the cam (806), and a knob (805) is fixedly connected to the top of the rotating shaft (804).

2. The heat-sealing mechanism for plastic packaging according to claim 1, characterized in that: A prompting piece (11) is fixedly connected to the top of the docking card box (12), and a toggle block (10) is fixedly connected to the top of the mounting slide tube (7).

3. The heat-sealing mechanism for plastic packaging according to claim 1, characterized in that: A limiting block (6) is fixedly connected to the top of the heat sealing cutter (5), and the inner wall of the limiting block (6) is slidably connected to the surface of the heat sealing cutter (5).

4. The heat-sealing mechanism for plastic packaging according to claim 1, characterized in that: A support slide rod (4) is fixedly connected to one side of the heat sealing cutter (5), and the surface of the support slide rod (4) is slidably connected to the inner wall of the mounting bracket (1).

5. A heat-sealing mechanism for plastic packaging according to claim 1, characterized in that: A positioning block (13) is fixedly connected to one side of the heat-sealing cap (801), and the surface of the positioning block (13) is slidably connected to the inner wall of the mounting slide tube (7).

6. A heat-sealing mechanism for plastic packaging according to claim 1, characterized in that: The mounting bracket (1) is fixedly connected to one side of a fixing seat (2), and the number of fixing seats (2) is four.

7. A heat-sealing mechanism for plastic packaging according to claim 1, characterized in that: A connecting rod (9) is fixedly connected to one side of the mounting bracket (1), and a sleeve rod (14) is fixedly connected to one side of the connecting rod (9).

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