Heat sealing mechanism for high-strength packaging bag production

Abstract

The heat sealing mechanism for high-strength packaging bag production comprises a rack, a positioning device, a controller and a heat sealing device, opposite winding roller containing grooves are formed in the two ends of the left side of the rack, and a first guide rod, a second guide rod, a conveying device and a platform are sequentially arranged on the right sides of the winding roller containing grooves; the conveying device comprises a lower extrusion roller and an upper extrusion roller located at the upper end of the lower extrusion roller, the two ends of the upper extrusion roller are connected with first sliding block bearings, first sliding grooves matched with the first sliding blocks on the two sides are formed in the inner walls of the two sides of the rack, and the first sliding blocks are fixedly connected with first threaded sleeves. The first threaded sleeve is in threaded connection with a lead screw, the upper end of the lead screw penetrates through the upper end of the first sliding groove to be fixedly connected with a hand wheel, a second threaded sleeve is arranged at the joint of the lead screw and the upper end of the first sliding groove, and the lead screw is in threaded connection with the second threaded sleeve. According to the heat sealing mechanism for high-strength packaging bag production, through the advantages of efficient integrated design, accurate positioning and heat sealing, flexible adjustment, adaptability and the like, powerful support is provided for high-strength packaging bag production, and double improvement of industrial production efficiency and product quality is promoted.

Description

Technical Field

[0001] The utility model relates to the field of plastic bag processing, in particular to a heat sealing mechanism for producing high-strength packaging bags. Background Technique

[0002] As an important part of modern industrial packaging, the improvement of the production efficiency and quality of high-strength packaging bags has always been the focus of the industry. In the existing production process, the heat sealing and cutting links are often relatively independent and require the cooperation of multiple processes and equipment. This not only increases the complexity and maintenance cost of the production line, but also easily leads to low production efficiency and unstable product quality. Especially when heat-sealing double-layer films, how to ensure accurate heat-sealing positions, uniform heat-sealing strength, and at the same time achieve a close connection with the cutting link has become a key factor restricting the production efficiency and quality of high-strength packaging bags. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a heat sealing mechanism for producing high-strength packaging bags.

[0004] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0005] A heat sealing mechanism for producing high-strength packaging bags includes a frame, a positioning device, a controller, and a heat sealing device. Opposite winding roller placement grooves are provided at both ends on the left side of the frame. A first guide rod, a second guide rod, a transmission device, and a platform are sequentially arranged on the right side of the winding roller placement grooves. The transmission device includes a lower extrusion roller and an upper extrusion roller located above the lower extrusion roller. Both ends of the upper extrusion roller are connected to a first slider by bearings. First chutes adapted to the first sliders on both sides are provided on the inner walls of both sides of the frame. The first slider is fixedly connected to a first threaded sleeve. The first threaded sleeve is threadedly connected to a lead screw. The upper end of the lead screw passes through the upper end of the first chute and is fixedly connected to a handwheel. A second threaded sleeve is provided at the connection between the lead screw and the upper end of the first chute. The lead screw is threadedly connected to the second threaded sleeve.

[0006] The upper extrusion roller and the lower extrusion roller are aligned with the platform. The heat sealing device is located above the platform and includes a moving frame. Cutting knives and heat sealing knives are provided on the left and right sides below the moving frame.

[0007] The left and right sides of the moving frame are fixedly connected to moving blocks. The two moving blocks are fixedly connected to second sliders. Second chutes adapted to the second sliders are provided on the inner walls of both sides of the frame. A telescopic cylinder is provided at the upper end of the second chute. The telescopic end of the telescopic cylinder passes through the upper end of the second chute and is fixedly connected to the upper end of the second slider.

[0008] A positioning device is provided on the left side of the heat-sealing device. The positioning device includes a cross beam fixed on the frame and a sliding seat that can move on the cross beam. An optoelectronic sensor is provided below the sliding seat.

[0009] A winding roller placement groove can place a winding roller carrying a double-layer film in a roll. Color and patterns are printed at intervals on the double-layer film, and at least one area with color and patterns is different from the color and patterns in other places.

[0010] Both the first guide rod and the second guide rod are connected to the frame by bearings.

[0011] One end of the lower extrusion roller is connected to the frame by a bearing, and the other end passes through the frame and is connected to the output end of the motor through a driven pulley, a driving pulley, and a belt.

[0012] A heating component is provided inside the heat-sealing knife, and the heating component is an electric heating tube.

[0013] The controller is electrically connected to the motor, the telescopic cylinder, the heating tube, and the optoelectronic sensor.

[0014] Advantages of the present utility model:

[0015] By integrating the heat-sealing and cutting functions in the same mechanism, seamless connection in the production process of the packaging bag is achieved, reducing intermediate links and conversion time, and greatly improving production efficiency.

[0016] The positioning device uses an optoelectronic sensor for precise positioning to ensure accurate alignment of the double-layer film before heat-sealing, avoiding poor heat-sealing problems caused by position deviation. At the same time, an electric heating tube is provided inside the heat-sealing knife, which can quickly heat up and maintain a constant temperature, ensuring the uniformity and consistency of the heat-sealing strength.

[0017] By adjusting the handwheel and the first lead screw, the height of the upper extrusion roller can be conveniently adjusted to adapt to double-layer film materials of different thicknesses, improving the versatility and flexibility of the equipment. In addition, the synchronous movement design of the cutting knife and the heat-sealing knife ensures precise synchronization of cutting and heat-sealing, further improving product quality.

[0018] The heat-sealing mechanism for the production of high-strength packaging bags proposed by the present utility model provides strong support for the production of high-strength packaging bags through its advantages in efficient integrated design, precise positioning and heat-sealing, flexible adjustment and adaptability, etc., promoting the double improvement of the production efficiency and product quality in the industry. Description of the Drawings

[0019] Figure 1 It is a structural schematic diagram of the present utility model.

[0020] Figure 2This is a schematic structural diagram of the present utility model. Specific embodiments

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below with reference to specific illustrations.

[0022] A heat-sealing mechanism for the production of high-strength packaging bags includes a frame 1, a positioning device, a controller, and a heat-sealing device. At both ends on the left side of the frame 1, there are opposite winding roller placement grooves 2. On the right side of the winding roller placement grooves 2, there are successively a first guide rod 3, a second guide rod 4, a transmission device, and a platform 5. The transmission device includes a lower pressing roller 6 and an upper pressing roller 7 located above the lower pressing roller 6. Both ends of the upper pressing roller 7 are connected to a first slider 8 by bearings. On the inner walls of both sides of the frame 1, there are first chutes 9 adapted to the first sliders 8 on both sides. The first slider 8 is fixedly connected to a first threaded sleeve, and the first threaded sleeve is threadedly connected to a lead screw 10. The upper end of the lead screw 10 passes through the upper end of the first chute 9 and is fixedly connected to a handwheel 11. At the connection between the lead screw 10 and the upper end of the first chute 9, there is a second threaded sleeve, and the lead screw 10 is threadedly connected to the second threaded sleeve.

[0023] The upper pressing roller 7 and the lower pressing roller 6 are aligned with the platform 5. The heat-sealing device is located above the platform 5 and includes a moving frame 12. On the left and right sides below the moving frame 12, there are a cutting knife 13 and a heat-sealing knife 14.

[0024] The left and right sides of the moving frame 12 are fixedly connected to moving blocks, and the two moving blocks are fixedly connected to a second slider 15. On the inner walls of both sides of the frame 1, there are second chutes 16 adapted to the second slider 15. At the upper end of the second chute 16, there is a telescopic cylinder 17. The telescopic end of the telescopic cylinder 17 passes through the upper end of the second chute 16 and is fixedly connected to the upper end of the second slider 15.

[0025] A positioning device is provided on the left side of the heat-sealing device. The positioning device includes a cross beam 18 fixed on the frame 1 and a sliding seat 19 that can move on the cross beam 18. Below the sliding seat 19, there is a photoelectric sensor.

[0026] On the winding roller placement groove 2, a winding roller 20 carrying a roll of double-layer film can be placed. The double-layer film is printed with colors and patterns at intervals, and at least one area with colors and patterns is different from the colors and patterns in other places.

[0027] Both the first guide rod 3 and the second guide rod 4 are connected to the frame 1 by bearings.

[0028] One end of the lower pressing roller 6 is connected to the frame 1 by a bearing, and the other end passes through the frame 1 and is connected to the output end of a motor 21 through a driven pulley, a driving pulley, and a belt.

[0029] Inside the heat-sealing knife 14, there is a heating component, and the heating component is an electric heating tube.

[0030] The controller is electrically connected to the motor, the telescopic cylinder 17, the heating tube, and the photoelectric sensor.

[0031] Embodiment of the present utility model: First, place the winding roller 20 carrying the rolled double-layer film in the winding roller placement groove 2 on the left side of the frame 1. The double-layer film is printed with colors and patterns at intervals, and at least one color and pattern design is different from other places to distinguish or identify specific areas.

[0032] The double-layer film enters the transmission device composed of the lower pressing roller 6 and the upper pressing roller 7 under the guidance of the first guide rod 3 and the second guide rod 4. Both of these guide rods 3 and 4 are connected to the frame 1 by bearings to ensure the stability and directionality of the film transmission process.

[0033] One end of the lower pressing roller 6 is connected to the frame 1 by a bearing, and the other end is connected to the output end of the motor 21 through a driven pulley, a driving pulley, and a belt. The motor 21 drives the lower pressing roller 6 to rotate, thereby driving the upper pressing roller 7 and the film to move together.

[0034] The upper pressing roller 7 is adjusted up and down on the frame 1 through the cooperation of the first slider 8 and the first chute 9. Specifically, rotate the handwheel 11, and the handwheel 11 drives the lead screw 10 to rotate. Due to the threaded connection of the lead screw 10 with the first threaded sleeve and the second threaded sleeve, the first slider 8 and the connected upper pressing roller 7 move up and down along the first chute 9 to adapt to different thicknesses of film materials and ensure stable extrusion of the film during transmission.

[0035] When the film is transmitted above the platform 5, it is accurately positioned by the positioning device. The positioning device includes a sliding seat 19 on the cross beam 18, and a photoelectric sensor is provided below the sliding seat 19. The photoelectric sensor detects the area of specific colors or patterns on the film to provide accurate position information for subsequent cutting and heat sealing.

[0036] When the film is transmitted to the specified position, the telescopic end of the telescopic cylinder 17 pushes the second slider 15 and the moving frame 12 fixed thereto to move downward along the second chute 16. The cutting knife 13 installed below the moving frame 12 performs cutting to ensure that the front and rear ends of the heat-sealing area are flat.

[0037] At the same time, the heat-sealing knife 14 approaches the film driven by the moving frame 12, and the electric heating tube inside it is heated to the set temperature to perform heat-sealing treatment on the double-layer film to form the seal of the high-strength packaging bag.

[0038] After cutting and heat-sealing, a preliminary independent high-strength packaging bag is formed.

[0039] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the description in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A heat-sealing mechanism for producing high-strength packaging bags, characterized in that, It includes a frame, a positioning device, a controller and a heat-sealing device. At both ends on the left side of the frame, there are opposite winding roller placement grooves. On the right side of the winding roller placement grooves, there are successively a first guide rod, a second guide rod, a transmission device and a platform. The transmission device includes a lower pressing roller and an upper pressing roller located above the lower pressing roller. Both ends of the upper pressing roller are connected to a first slider by bearings. On the inner walls of both sides of the frame, there are first chutes adapted to the first sliders on both sides. The first slider is fixedly connected to a first threaded sleeve, and the first threaded sleeve is threadedly connected to a lead screw. The upper end of the lead screw passes through the upper end of the first chute and is fixedly connected to a handwheel. At the connection between the lead screw and the upper end of the first chute, there is a second threaded sleeve, and the lead screw is threadedly connected to the second threaded sleeve.

2. The heat-sealing mechanism for producing high-strength packaging bags according to claim 1, characterized in that, The upper pressing roller and the lower pressing roller are aligned with the platform. The heat-sealing device is located above the platform and includes a movable frame. On the left and right sides below the movable frame, there are a cutting knife and a heat-sealing knife.

3. The heat-sealing mechanism for producing high-strength packaging bags according to claim 2, characterized in that, The left and right sides of the movable frame are fixedly connected to movable blocks, and the movable blocks on both sides are fixedly connected to second sliders. On the inner walls of both sides of the frame, there are second chutes adapted to the second sliders. At the upper end of the second chute, there is a telescopic cylinder, and the telescopic end of the telescopic cylinder passes through the upper end of the second chute and is fixedly connected to the upper end of the second slider.

4. The heat-sealing mechanism for producing high-strength packaging bags according to claim 1, characterized in that, On the left side of the heat-sealing device, there is a positioning device. The positioning device includes a cross beam fixed on the frame and a sliding seat that can move on the cross beam. Below the sliding seat, there is a photoelectric sensor.

5. The heat-sealing mechanism for producing high-strength packaging bags according to claim 1, wherein, On the winding roller placement grooves, winding rollers carrying double-layer films in rolls can be placed. On the double-layer films, colors and patterns are printed at intervals, and at least one area with colors and patterns is different from the colors and patterns in other places.

6. The heat-sealing mechanism for producing high-strength packaging bags according to claim 1, characterized in that, Both the first guide rod and the second guide rod are connected to the frame by bearings.

7. The heat-sealing mechanism for producing high-strength packaging bags according to claim 1, characterized in that, One end of the lower pressing roller is connected to the frame by a bearing, and the other end passes through the frame and is connected to the output end of the motor through a driven pulley, a driving pulley and a belt.

8. The heat-sealing mechanism for producing a high-strength packaging bag according to claim 2, characterized in that, Inside the heat-sealing knife, there is a heating component, and the heating component is an electric heating tube.

9. The heat-sealing mechanism for producing high-strength packaging bags according to claim 1, characterized in that, The controller is electrically connected to the motor, the telescopic cylinder, the heating tube and the photoelectric sensor.

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