Novel vacuum heat-sealing device of full-automatic stretch film packaging machine

Abstract

The utility model relates to the technical field of heat sealing devices, and discloses a novel vacuum heat sealing device of a full-automatic stretch film packaging machine, which comprises a mounting rack, the upper end and the lower end of the mounting rack are fixedly connected with air cylinders I, and the driving ends of the air cylinders I penetrate through the inner wall of the mounting rack and are fixedly connected with push plates; heating strips are fixedly connected to the middles of the opposite ends of the push plates, clamping assemblies are installed on the right sides of the inner walls of the push plates, adjusting assemblies are installed at the front ends of the push plates on the lower sides, the left ends and the right ends of the lifting blocks are slidably connected to the inner walls of the rear ends of the mounting frames, and the front ends of the lifting blocks are fixedly connected to the rear ends of the push plates. According to the utility model, the pointer at the front part of the movable block is moved to the corresponding numerical value position on the scale according to the required length of the film, so that the length of the pulled film has a visual standard, the standard of film coating operation is ensured, the product quality is improved, and the development of manufacturers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of heat sealing devices, in particular to a new type of vacuum heat sealing device for a full-automatic stretch film packaging machine. Background Art

[0002] The fully automatic stretch film packaging machine is a device used to package products. The vacuum heat sealing device is one of the key components. It uses heat sealing technology to completely seal the product in the packaging film, effectively preventing the influence of external factors such as oxygen and moisture on the product, and ensuring the quality and safety of the product.

[0003] After searching, a film heat-sealing device with announcement number CN220483749U relates to the field of film equipment technology. The film heat-sealing device includes a top plate and a bottom plate arranged up and down, and four columns vertically fixed between the top plate and the bottom plate; it also includes an upper heat-sealing mechanism, a lower heat-sealing mechanism, a positioning mechanism and a film cutting mechanism; wherein the upper heat-sealing mechanism includes an upper cylinder fixed on the top plate, an upper push plate located below the top plate and sliding on the four columns, and an upper heating strip fixed on the bottom of the upper push plate; the upper cylinder driving end is fixedly connected to the upper push plate. The utility model, through the coordinated design of various structures, can ensure that the film at the die-cutting position will not be loosened due to the continued discharge of the film material roll during the film die-cutting operation, which is convenient for the subsequent die-cutting operation and can ensure that the film can be cut smoothly and the incision is neat.

[0004] Based on the above patent, through the coordinated design of various structures, during the film die cutting operation, it can be ensured that the film at the die cutting position will not be loosened due to the continued unloading of the film material roll, which is convenient for the subsequent die cutting operation and can ensure that the film can be cut smoothly and the incision is neat. However, in the above comparative patent, when the product size is different, the required film length is also different. Then, when the operator uses it, due to the lack of measurement standards, the length of the film stretched out each time will be different, which will lead to non-standard packaging operations, affecting the production quality of the product, and is not conducive to the development of manufacturers. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a new vacuum heat sealing device for a fully automatic stretch film packaging machine, which ensures the standard of film packaging operation, improves the quality of products and is beneficial to the development of manufacturers.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A new type of vacuum heat sealing device for a fully automatic stretch film packaging machine comprises a mounting frame, wherein both upper and lower ends of the mounting frame are fixedly connected with a cylinder 1, a driving end of the cylinder 1 passes through the inner wall of the mounting frame and is fixedly connected with a push plate, a heating strip is fixedly connected to the middle of the opposite end of the push plate, a clamping assembly is installed on the right side of the inner wall of the push plate, an adjustment assembly is installed on the front end of the push plate on the lower side, a vertical rod is fixedly connected to the inner wall of the rear end of the mounting frame, and lifting blocks are slidably connected to the upper and lower sides of the outer wall of the vertical rod, the left and right ends of the lifting block are slidably connected to the inner wall of the rear end of the mounting frame, and the front end of the lifting block is fixedly connected to the rear end of the push plate.

[0008] Furthermore, the clamping assembly includes a sliding rod slidably connected to the inner wall of the middle part of the right end of the push plate, the sliding rod is fixedly connected to a pressure plate at one opposite end, and the pressure plate is fixedly connected to a rubber pad at one opposite end.

[0009] Furthermore, a spring is fixedly connected to one end of the pressure plate opposite to the other end near the outer side of the slide rod, and the other end of the spring is fixedly connected to the bottom end of the push plate near the outer side of the slide rod.

[0010] Furthermore, the adjustment assembly includes a measuring plate fixedly connected to the front end of the lower push plate, a motor is fixedly connected to the lower left end of the measuring plate, a threaded rod is rotatably connected to the inner wall of the lower right end of the measuring plate, and the left end of the threaded rod passes through the outer wall of the measuring plate and is fixedly connected to the motor driving end.

[0011] Furthermore, the outer wall of the threaded rod is threadedly connected with a movable block, the upper and lower ends of the movable block are slidably connected to the lower side of the inner wall of the measuring plate, a scale is provided on the upper side of the front end of the measuring plate, and the front end of the movable block is fixedly connected with an indicator needle.

[0012] Furthermore, a connecting block is fixedly connected to the bottom end of the upper push plate between the heating strip and the pressure plate, and a support plate is fixedly connected to the bottom end of the connecting block.

[0013] Furthermore, a second cylinder is fixedly connected to the bottom end of the mounting frame between the lower heating strip and the pressure plate, and a driving end of the second cylinder passes through the inner wall of the mounting frame and is fixedly connected to a film cutting knife.

[0014] Furthermore, the top end of the film cutting knife passes through the inner wall of the slot opened between the heating strip and the pressing plate on the lower push plate.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, by starting the motor, the threaded rod rotates, and the movable block slides to the left. Then, according to the required length of the film, the indicator needle at the front of the movable block is moved to the corresponding numerical position on the scale, so that the length of the pulled film has a visual standard. Then, the operator can control the traction mechanism to pull one end of the film to the specified position of the indicator needle, thereby ensuring the standard of the film coating operation, improving the quality of the product, and benefiting the development of the manufacturer.

[0017] 2. In the utility model, the bottom of the abutment plate and the bottom of the upper heating strip are kept at the same horizontal plane. When the heating strip presses the film, the surface of the film is in contact with the bottom of the abutment plate. When the film cutting knife moves up and contacts the bottom of the abutment plate, it can not only cut the film, but also avoid the film cutting knife moving up too much and pulling the film, causing one side of the film to be stretched and deformed, affecting subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front perspective view of a new vacuum heat sealing device for a fully automatic stretch film packaging machine proposed by the utility model;

[0019] Figure 2 This is a rear-end stereogram of a new vacuum heat-sealing device of a fully automatic stretch film packaging machine proposed in the utility model;

[0020] Figure 3 This is a schematic diagram of the push plate structure of a new vacuum heat sealing device for a fully automatic stretch film packaging machine proposed by the utility model;

[0021] Figure 4 The utility model discloses a schematic diagram of the structure of the mounting frame of a new type vacuum heat sealing device of a fully automatic stretch film packaging machine.

[0022] Legend:

[0023] 1. Mounting frame; 2. Cylinder 1; 3. Push plate; 4. Sliding rod; 5. Spring; 6. Pressure plate; 7. Rubber pad; 8. Measuring plate; 9. Threaded rod; 10. Movable block; 11. Indicator needle; 12. Motor; 13. Scale; 14. Lifting block; 15. Vertical rod; 16. Cylinder 2; 17. Connecting block; 18. Butt plate; 19. Heating strip; 20. Film cutting knife. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-4 The utility model provides an embodiment: a new type of vacuum heat sealing device for a fully automatic stretch film packaging machine, including a mounting frame 1, the upper and lower ends of the mounting frame 1 are fixedly connected to a cylinder 2, the driving ends of the cylinder 2 are all through the inner wall of the mounting frame 1 and are fixedly connected to a push plate 3, the device is installed on the production line as a whole through the mounting plates at the four corners of the top of the mounting frame 1, a film roll is placed on the right side of the mounting frame 1, and then the film roll is pulled from the traction mechanism to pass between the push plates 3 on both sides, the middle part of the opposite end of the push plate 3 is fixedly connected to a heating strip 19, the heating strip 19 is a prior art component, and the cylinders on both sides are started 1-2, so that its driving end pushes the push plate 3 to move in the opposite direction, so that the heating strips 19 on both sides clamp the film, and the heating strips 19 are started to heat the film, so that a heat seal is formed on one side of the film. The inner wall of the rear end of the mounting frame 1 is fixedly connected to the vertical rod 15, and the upper and lower sides of the outer wall of the vertical rod 15 are slidably connected to the lifting blocks 14. The left and right ends of the lifting blocks 14 are slidably connected to the inner wall of the rear end of the mounting frame 1, and the front ends of the lifting blocks 14 are fixedly connected to the rear end of the push plate 3. When the cylinder 1-2 pushes the push plate 3 to move downward, it is pulled by the lifting blocks 14 and the sliding is limited on the vertical rod 15, so that the push plate 3 can be prevented from deflecting when moving downward.

[0026] Specifically, a measuring plate 8 is fixedly connected to the front end of the lower push plate 3, a motor 12 is fixedly connected to the lower left side of the measuring plate 8, a threaded rod 9 is rotatably connected to the inner wall of the lower right end of the measuring plate 8, the left end of the threaded rod 9 penetrates the outer wall of the measuring plate 8 and is fixedly connected to the driving end of the motor 12, a movable block 10 is threadedly connected to the outer wall of the threaded rod 9, and the upper and lower ends of the movable block 10 are slidably connected to the lower side of the inner wall of the measuring plate 8, a scale 13 is provided on the upper side of the front end of the measuring plate 8, and an indicator needle 11 is fixedly connected to the front end of the movable block 10. Starting the motor 12 makes the threaded rod 9 rotate, causing the movable block 10 to slide to the left, and the indicator needle 11 moves and slides accordingly, and then according to the required length of the film, the indicator needle 11 is moved to the corresponding numerical position on the scale 13, so that the length has a visual standard, and then the operator can control the traction mechanism to pull one end of the film to move to the specified position of the indicator needle 11, to ensure the standard of the film coating operation, improve the quality of the product, and benefit the development of the manufacturer.

[0027] Specifically, the inner wall of the middle right end of the push plate 3 is slidably connected to the slide bar 4, the opposite end of the slide bar 4 is fixedly connected to the pressure plate 6, the opposite end of the pressure plate 6 is fixedly connected to the rubber pad 7, the opposite end of the pressure plate 6 is fixedly connected to the outside of the slide bar 4 with a spring 5, the other end of the spring 5 is fixedly connected to the bottom end of the push plate 3 near the outside of the slide bar 4, the pressure plates 6 on both sides clamp the film as the cylinder 2 pushes, and in the clamping process, a force is generated to squeeze the spring 5, and then under the rebound force of the spring 5, the clamping force of the film is increased, the bottom end of the upper push plate 3 is located between the heating strip 19 and the pressure plate 6 and is fixedly connected to a connecting block 17, the bottom end of the connecting block 17 is fixedly connected to a counter plate 18, the bottom end of the mounting frame 1 is located between the lower heating strip 19 and the pressure plate 6 and is fixed It is fixedly connected with cylinder 2 16, and the driving end of cylinder 2 16 passes through the inner wall of mounting frame 1 and is fixedly connected with film cutting knife 20. When cylinder 2 16 is started, it pushes film cutting knife 20 to move upward until the top of film cutting knife 20 abuts against the bottom of abutment plate 18, so as to cut the film. The top of film cutting knife 20 passes through the inner wall of the slot opened between heating strip 19 and pressing plate 6 on lower push plate 3. Since the bottom of abutment plate 18 and the bottom of upper heating strip 19 are kept at the same horizontal plane, when heating strip 19 presses the film, the surface of the film is in contact with the bottom of abutment plate 18. Therefore, after film cutting knife 20 moves upward and abuts against the bottom of abutment plate 18, it can not only cut the film, but also avoid that film cutting knife 20 moves upward too much to involve the film, so that one side of the film is stretched and deformed, which affects the subsequent use.

[0028] Working principle: First, the device is installed on the production line through the mounting plates at the four corners of the top of the mounting frame 1. A film roll is placed on the right side of the mounting frame 1. Then, the film roll is pulled through the push plates 3 on both sides by the traction mechanism. By starting the motor 12, the threaded rod 9 rotates, causing the movable block 10 to slide to the left, and the indicator needle 11 moves and slides accordingly. Then, according to the required length of the film, the indicator needle 11 is moved to the corresponding numerical position on the scale 13, so that the length has a visual standard. Then, the operator can control the traction mechanism to pull one end of the film to move to The indicating needle 11 is at the designated position, and then the cylinders 2 on both sides are started, so that their driving ends push the push plates 3 to move in relative directions, so that the heating strips 19 on both sides clamp the film. At the same time, the film will be clamped between the pressure plates 6 on both sides, and in the clamping process, a force will be generated to squeeze the spring 5, and then under the rebound force of the spring 5, the clamping force of the film is increased, and then the heating strips 19 are started to heat the film, so that a heat seal is formed on one side of the film, and then the cylinder 2 16 is started to push the film cutting knife 20 to move upward until the top of the film cutting knife 20 abuts against the bottom of the abutment plate 18, thereby cutting the film.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel vacuum heat sealing device for a fully automatic stretch film packaging machine, comprising a mounting frame (1), characterized in that: The upper and lower ends of the mounting frame (1) are fixedly connected to a cylinder 1 (2); the driving ends of the cylinder 1 (2) penetrate the inner wall of the mounting frame (1) and are fixedly connected to a push plate (3); the middle part of the opposite end of the push plate (3) is fixedly connected to a heating strip (19); a clamping assembly is installed on the right side of the inner wall of the push plate (3); an adjustment assembly is installed at the front end of the lower push plate (3); the inner wall of the rear end of the mounting frame (1) is fixedly connected to a vertical rod (15); the upper and lower sides of the outer wall of the vertical rod (15) are slidably connected to a lifting block (14); the left and right ends of the lifting block (14) are slidably connected to the inner wall of the rear end of the mounting frame (1); and the front end of the lifting block (14) is fixedly connected to the rear end of the push plate (3).

2. A novel vacuum heat sealing device for a fully automatic stretch film packaging machine according to claim 1, characterized in that: The clamping assembly comprises a slide rod (4) slidably connected to the inner wall of the middle part of the right end of the push plate (3), the slide rod (4) is fixedly connected to a pressure plate (6) at one opposite end, and the pressure plate (6) is fixedly connected to a rubber pad (7) at one opposite end.

3. A novel vacuum heat sealing device for a fully automatic stretch film packaging machine according to claim 2, characterized in that: The opposite end of the pressure plate (6) is fixedly connected to a spring (5) near the outer side of the slide rod (4), and the other end of the spring (5) is fixedly connected to the bottom end of the push plate (3) near the outer side of the slide rod (4).

4. The novel vacuum heat sealing device of a fully automatic stretch film packaging machine according to claim 1, characterized in that: The adjustment component comprises a measuring plate (8) fixedly connected to the front end of the lower push plate (3); a motor (12) is fixedly connected to the lower left side of the measuring plate (8); a threaded rod (9) is rotatably connected to the inner wall of the lower right side of the measuring plate (8); and the left end of the threaded rod (9) penetrates the outer wall of the measuring plate (8) and is fixedly connected to the driving end of the motor (12).

5. The novel vacuum heat sealing device of the fully automatic stretch film packaging machine according to claim 4, characterized in that: The outer wall of the threaded rod (9) is threadedly connected to a movable block (10), the upper and lower ends of the movable block (10) are slidably connected to the lower side of the inner wall of the measuring plate (8), the upper front end of the measuring plate (8) is provided with a scale (13), and the front end of the movable block (10) is fixedly connected to an indicator needle (11).

6. The novel vacuum heat sealing device of a fully automatic stretch film packaging machine according to claim 1, characterized in that: The bottom end of the push plate (3) on the upper side is located between the heating strip (19) and the pressing plate (6) and is fixedly connected to a connecting block (17), and the bottom end of the connecting block (17) is fixedly connected to a stop plate (18).

7. The novel vacuum heat sealing device of a fully automatic stretch film packaging machine according to claim 1, characterized in that: The bottom end of the mounting frame (1) is located between the lower heating strip (19) and the pressing plate (6) and is fixedly connected to a second cylinder (16); the driving end of the second cylinder (16) passes through the inner wall of the mounting frame (1) and is fixedly connected to a film cutting knife (20).

8. The novel vacuum heat sealing device of the fully automatic stretch film packaging machine according to claim 7, characterized in that: The top end of the film cutting knife (20) passes through the inner wall of the slot opened between the heating strip (19) and the pressing plate (6) on the lower push plate (3).

Images