Heat sealing device for plastic bag making

Abstract

The utility model discloses a heat sealing device for plastic bag making, and relates to the field of plastic bag heat sealing. The heat sealing device comprises a workbench, a pressing frame and a heat sealing base, the heat sealing base is fixed to one side of the top of the workbench, a driving motor is installed on one side of the workbench, a reciprocating lead screw is installed at the output end of the driving motor, a sliding plate is in threaded connection with the outer side of the reciprocating lead screw, and four sets of fixing rods are fixed in the workbench. The plastic bag edge sealing device is characterized in that a sliding plate is arranged in the heat sealing seat, the sliding plate and the sliding plate are clamped and slide, a removing block is fixed to the top of the sliding plate, sliding blocks are fixed to the two sides of the sliding plate, and two sets of sliding grooves are formed in the heat sealing seat and are clamped with the two sets of sliding blocks in a sliding mode. Therefore, a good operation environment is provided for subsequent continuous operation, meanwhile, a good heat-sealing stable pressing function can be provided for plastic bags needing to be heat-sealed below, and the plastic bags are prevented from moving in the heat-sealing process.

Description

Technical Field

[0001] This utility model relates to the field of heat sealing of plastic bags, specifically a heat sealing device for making plastic bags. Background Technology

[0002] Plastic bag heat sealing equipment is a highly efficient and convenient sealing device that seals the opening of plastic bags by heating, ensuring their airtightness and moisture-proof and leak-proof effects. This device occupies an important position in the packaging industry and is widely used in food, pharmaceutical, chemical and other fields. It effectively improves product packaging quality and reduces packaging costs. At the same time, it also promotes the automation and modernization of the packaging industry, becoming an indispensable part of modern society and bringing great convenience to people's lives.

[0003] However, traditional heat-sealing devices used in plastic bag manufacturing leave some scrap material after heat-sealing the plastic bags. If this scrap material is not cleaned in time, it will fuse with the plastic bags during the next heat-sealing process, resulting in defective products and wasting raw materials. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a heat-sealing device for making plastic bags, which can conveniently and promptly remove residual edge material from plastic bags after sealing, thereby providing a good working environment for subsequent continuous operations. At the same time, it can provide a good heat-sealing and stable downward pressure function for the plastic bags that need to be heat-sealed below, preventing the plastic bags from shifting during the heat-sealing process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-sealing device for making plastic bags, comprising a workbench, a lower pressure frame, and a heat-sealing seat. The heat-sealing seat is fixed to one side of the top of the workbench, and a drive motor is installed on one side of the workbench. A reciprocating lead screw is installed at the output end of the drive motor, and a sliding plate is threaded to the outer side of the reciprocating lead screw. Four sets of fixed rods are fixed inside the workbench and respectively engage and slide with the sliding plate. A cleaning block is fixed to the top of the sliding plate, and sliders are fixed to both sides of the sliding plate. Two sets of sliding grooves are opened inside the heat-sealing seat and respectively slide and engage with the two sets of sliders.

[0006] By adopting the above technical solution, the drive motor is used to provide rotational power to the reciprocating lead screw. The reciprocating lead screw is connected to the slide plate by a thread, and four sets of fixed rods slide with the slide plate to limit its movement. This allows the slide plate to move smoothly back and forth inside the worktable and the heat sealing seat. The cleaning block is used to scrape and remove residual plastic bag material on the heat sealing seat. The slider is connected to the slide groove to provide a better smooth movement effect for the slide plate.

[0007] Furthermore, the bottom of the workbench is fixed with several sets of supporting feet, and the top of the workbench, located outside the heat sealing seat, is fixed with four sets of supporting columns, and the top of the four sets of supporting columns is fixed with a top plate.

[0008] By adopting the above technical solution and fixing several sets of support feet at the bottom of the workbench, this design significantly enhances the stability of the entire heat sealing device, and the support columns are used to provide support for the top plate above.

[0009] Furthermore, a drive cylinder is provided on the top of the top plate, and an installation plate is mounted on the output end of the drive cylinder.

[0010] By adopting the above technical solution and setting a drive cylinder at the top of the top plate, the device realizes automated and efficient heat sealing operation. The mounting plate installed at the output end of the drive cylinder plays a key role in connection and transmission.

[0011] Furthermore, two sets of limiting rods are fixedly installed between the workbench and the top plate, and are respectively slidably engaged with the mounting plate.

[0012] By adopting the above technical solution, and by fixing two sets of limiting rods between the workbench and the top plate, and sliding and engaging with the mounting plate, this design significantly enhances the operational stability and accuracy of the mounting plate.

[0013] Furthermore, a pressure bracket is fixed to the bottom of the mounting plate, and a heat sealing block is installed at the bottom of the pressure bracket, which corresponds vertically to the heat sealing seat.

[0014] By adopting the above technical solution, the lower pressure frame is used to drive the heat sealing block to move stably, and the heat sealing block is used to heat seal the plastic bag placed on the heat sealing seat below.

[0015] Furthermore, spring sleeves are installed at the four corners of the bottom of the lower pressure frame, and rubber pads are attached to the bottom of each of the four sets of spring sleeves.

[0016] By adopting the above technical solution, and by installing spring sleeves at the four corners of the bottom of the pressure frame, this technical solution provides a buffer for the heat sealing device while also providing a fastening function for the plastic bag below.

[0017] In summary, the present invention has the following main advantages:

[0018] 1. This utility model, by setting up a heat sealing seat, a sliding plate and a cleaning block, when the drive motor drives the reciprocating screw to rotate, the reciprocating screw will be connected to the sliding plate by a thread and the sliding plate will be connected to the fixed rod by a sliding plate, so that the sliding plate drives the cleaning block above to slide stably, and the cleaning block can hook and remove the residual edge material above the heat sealing seat.

[0019] 2. In this utility model, four sets of spring sleeves are provided at the bottom of the pressure frame. When the pressure frame moves downward, the rubber pads at the bottom of the four sets of spring sleeves will press down and tighten the plastic bag above the heat sealing seat, thereby preventing the heat sealing block from shifting position when heat sealing the plastic bag. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a bottom view of the connection between the drive cylinder and the mounting plate of this utility model;

[0022] Figure 3 This is a front view sectional view of the connection between the worktable and the reciprocating lead screw of this utility model;

[0023] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Workbench; 2. Support base; 3. Support column; 4. Top plate; 5. Drive cylinder; 6. Mounting plate; 7. Lower pressure frame; 8. Heat sealing block; 9. Spring sleeve; 10. Heat sealing seat; 11. Drive motor; 12. Reciprocating lead screw; 13. Fixed rod; 14. Slide plate; 15. Cleaning block; 16. Slider; 17. Slide groove. Detailed Implementation

[0025] 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.

[0026] A heat-sealing device for making plastic bags, such as Figures 1-4 As shown, the device includes a workbench 1, a lower pressure frame 7, and a heat sealing seat 10. The heat sealing seat 10 is fixed to one side of the top of the workbench 1, and a drive motor 11 is installed on one side of the workbench 1. A reciprocating lead screw 12 is installed at the output end of the drive motor 11, and a slide plate 14 is threaded to the outer side of the reciprocating lead screw 12. Four sets of fixing rods 13 are fixed inside the workbench 1, and they are respectively engaged and slid with the slide plate 14. A cleaning block 15 is fixed to the top of the slide plate 14, and sliders 16 are fixed to both sides of the slide plate 14. Two sets of sliding grooves 17 are opened inside the heat sealing seat 10, and they are respectively engaged and slid with the two sets of sliders 16.

[0027] The drive motor 11 drives the reciprocating screw 12 to rotate, which drives the slide plate 14 to perform stable reciprocating motion through the threaded connection, improving cleaning efficiency and reducing the tediousness of manual operation. The interlocking and sliding design of the slide plate 14 and the four sets of fixed rods 13 enhances the stability and accuracy of the slide plate 14 during the movement, allowing the slide plate 14 to slide smoothly along the predetermined trajectory, thereby ensuring that the cleaning block 15 can accurately clean the residue on the heat sealing seat 10. The interlocking and sliding design of the sliders 16 on both sides of the slide plate 14 and the sliding grooves 17 opened inside the heat sealing seat 10 provides additional support and guidance for the movement of the slide plate 14.

[0028] See Figure 1 The bottom of the workbench 1 is fixed with several sets of supporting feet 2, and the top of the workbench 1 and located outside the heat sealing seat 10 are fixed with four sets of supporting columns 3, and the top of the four sets of supporting columns 3 is fixed with a top plate 4.

[0029] Among them, the support feet 2 can evenly distribute the weight of the workbench 1 and its components, ensuring that the performance and accuracy of the device will not be affected by external factors during operation. The four sets of support columns 3 fixed on the top of the workbench 1 and located on the outside of the heat sealing seat 10, and the top plate 4 fixed on the top of the four sets of support columns 3 together form a sturdy frame structure.

[0030] See Figure 1 and Figure 2 The top of the top plate 4 is provided with a driving cylinder 5, and the output end of the driving cylinder 5 is equipped with a mounting plate 6.

[0031] Among them, the drive cylinder 5 serves as a power source, providing a stable and controllable driving force, which drives the lower pressure frame 7 and the heat sealing block 8 to perform heat sealing operations via the mounting plate 6 below.

[0032] See Figure 1 Two sets of limiting rods are fixedly installed between the workbench 1 and the top plate 4, and are respectively slidably engaged with the mounting plate 6;

[0033] The limiting rod is used to precisely restrict and guide the movement trajectory of the mounting plate 6, ensuring that it can only move up and down along the set path, thereby effectively preventing the mounting plate 6 from deviating or shaking during movement.

[0034] See Figure 1 , Figure 2 and Figure 3 The bottom of the mounting plate 6 is fixed with a pressure bracket 7, and a heat sealing block 8 is installed at the bottom of the pressure bracket 7, which is vertically aligned with the heat sealing seat 10.

[0035] Among them, the lower pressure frame 7 is a key component connecting the mounting plate 6 and the heat sealing block 8. Its robust structure ensures the stability and reliability of the heat sealing block 8 during the heat sealing process.

[0036] See Figure 1 and Figure 2 Spring sleeves 9 are installed at the four corners of the bottom of the lower pressure frame 7, and rubber pads are attached to the bottom of the four sets of spring sleeves 9.

[0037] Among them, the bottom of each of the four sets of spring sleeves 9 is attached with a rubber pad, which further enhances the cushioning effect and anti-slip performance. The rubber pad has good elasticity and wear resistance, which can effectively reduce the scratches or damage to the plastic bag during the pressing process, and at the same time prevent the plastic bag from sliding or shifting during the heat sealing process.

[0038] The implementation principle of this utility model is as follows: First, the workbench 1 is stably placed in the designated position by the supporting base 2, and the plastic bag to be heat-sealed is placed above the heat sealing seat 10. Then, the drive cylinder 5 and the heat sealing block 8 are started through the control center, so that the mounting plate 6 below is pressed down. Thus, the mounting plate 6 drives the pressing frame 7 and the heat sealing block 8 installed at the bottom to press down. During the pressing process, the spring sleeve 9 will first press down and tighten the plastic bag below, and then the heat sealing block 8 will press against the heat sealing seat 10 to perform the heat sealing operation on the plastic bag.

[0039] After the heat sealing operation is completed, the operator removes the heat-sealed plastic bag and then starts the drive motor 11 through the control center. The drive motor 11 drives the reciprocating screw 12 to rotate, so that the reciprocating screw 12 is connected to the slide plate 14 by threads, and the slide plate 14 is slidably engaged with the four sets of fixed rods 13. This allows the slide plate 14 to slide back and forth stably inside the worktable 1. The slide plate 14 then drives the cleaning block 15 above to scrape and clean the plastic bag residue remaining on the top of the heat sealing seat 10. At the same time, the two sets of sliders 16 on both sides of the slide plate 14 will engage and slide with the sliding grooves 17 opened on both sides inside the heat sealing seat 10, so that the slide plate 14 has better stability during movement.

[0040] All parts not covered in this utility model are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0041] 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 heat-sealing device for making plastic bags, characterized in that: Includes a worktable (1), a pressure frame (7), and a heat sealing seat (10); A heat sealing seat (10) is fixed on one side of the top of the workbench (1), and a drive motor (11) is installed on one side of the workbench (1). A reciprocating screw (12) is installed at the output end of the drive motor (11), and a sliding plate (14) is threaded on the outer side of the reciprocating screw (12). Four sets of fixing rods (13) are fixed inside the workbench (1), and they are respectively engaged and slid with the sliding plate (14). A cleaning block (15) is fixed on the top of the sliding plate (14), and sliders (16) are fixed on both sides of the sliding plate (14). Two sets of sliding grooves (17) are opened inside the heat sealing seat (10), and they are respectively engaged and slid with the two sets of sliders (16).

2. The heat-sealing device for making plastic bags according to claim 1, characterized in that: The bottom of the workbench (1) is fixed with several sets of supporting feet (2), and the top of the workbench (1) and outside the heat sealing seat (10) is fixed with four sets of supporting columns (3), and the top of the four sets of supporting columns (3) is fixed with a top plate (4).

3. The heat-sealing device for making plastic bags according to claim 2, characterized in that: The top of the top plate (4) is provided with a drive cylinder (5), and the output end of the drive cylinder (5) is equipped with a mounting plate (6).

4. The heat-sealing device for making plastic bags according to claim 1, characterized in that: Two sets of limiting rods are fixedly installed between the workbench (1) and the top plate (4), and they slide and engage with the mounting plate (6) respectively.

5. The heat-sealing device for making plastic bags according to claim 3, characterized in that: The bottom of the mounting plate (6) is fixed with a pressure bracket (7), and a heat sealing block (8) is installed at the bottom of the pressure bracket (7), which corresponds to the heat sealing seat (10) vertically.

6. The heat-sealing device for making plastic bags according to claim 5, characterized in that: Spring sleeves (9) are installed at the four corners of the bottom of the lower pressure frame (7), and rubber pads are pasted on the bottom of the four sets of spring sleeves (9).

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