Sealing equipment for packaging bag production

Abstract

The sealing equipment for packaging bag production comprises a U-shaped shell, a spring shell vertically penetrates through the front end of the top of the U-shaped shell, a first sliding rod is connected to an opening in the center of the bottom of the spring shell in a sliding mode, a heat sealing box is welded to the bottom of the first sliding rod, and third sliding rods are connected to the inner walls of sliding rings in a sliding mode; a limiting frame is welded to the top of a third sliding rod, a heat sealing box is arranged over the limiting frame, the inner wall of the limiting frame is connected with the outer wall of a hot-pressing sealing block in a sleeving mode, the limiting frame is lifted firstly, then a to-be-sealed area of a packaging bag is placed on the top face of a supporting plate, then the to-be-sealed area of the packaging bag is pressed tightly through the limiting frame, and at the moment, the heat sealing box is pulled downwards; in the process, the packaging bag cannot incline or fall off, meanwhile, the outer wall of the hot-pressing sealing block can be accurately inserted into the limiting frame to seal the packaging bag, the production efficiency of the packaging bag is improved, and meanwhile workers can operate the whole sealing equipment conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing equipment, in particular to a sealing equipment used for packaging bag production. Background Art

[0002] Packaging bag sealing equipment is a mechanical device used to seal packaging containers. It can be divided into many types according to the sealing method and the materials used. This equipment seals the packaging container by heat sealing and is suitable for heat sealing of various plastic bags. Hot press sealing machines can be divided into plate heat sealers, roller heat sealers, belt heat sealers, sliding roller heat sealers and impulse heat sealers according to different heat sealing methods.

[0003] Existing plastic bags will be wrinkled during transportation, so that wrinkles will appear at the sealing part of the packaging after heat sealing, which will affect the sealing of the packaging and reduce the quality. Based on these problems, Chinese patent CN214931194U discloses a packaging bag sealing device, which can flatten the sealing part of the packaging bag by setting a flattening mechanism, so as to achieve better heat sealing effect. The heat sealing mechanism and the moving mechanism cooperate with each other, so that the packaging speed is fast, thereby improving the processing efficiency.

[0004] The sealing equipment uses a conveyor belt to move the packaging bags to the bottom of the heat sealing mechanism. Since there is no mechanism to fix the packaging bags on the conveyor belt, when the conveyor belt moves too fast or vibrates, the light and neatly arranged packaging bags are prone to become skewed or fall off the conveyor belt, which not only affects the accuracy of the heat sealing mechanism, but also hinders the production efficiency of the packaging bags. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A sealing device for packaging bag production comprises a U-shaped shell, a spring shell vertically penetrates the front end of the top of the U-shaped shell, a first slide bar is slidably connected to the central opening of the bottom of the spring shell, a heat sealing box is welded to the bottom of the first slide bar, a hot pressing sealing block is fixedly connected to the center of the bottom of the heat sealing box, a support plate vertically penetrates one end of the bottom of the U-shaped shell, slip rings are vertically penetrated at both ends of the support plate, a third slide bar is slidably connected to the inner wall of the slip ring, a limiting frame is welded on the top of the third slide bar, the heat sealing box is arranged just above the limiting frame, and the inner wall of the limiting frame is sleeved with the outer wall of the hot pressing sealing block.

[0008] As a further description of the above technical solution:

[0009] The inner wall of the spring shell is provided with a ventilation hole, the top end of the outer wall of the first slide bar is sleeved with a first return spring, and the front end of the heat sealing box is fixedly connected with a handle.

[0010] As a further description of the above technical solution:

[0011] Both ends of the inner wall of the U-shaped shell are fixedly connected with side plates, and the opposite sides of the side plates are welded with lifting plates, and the side plates and lifting plates are provided in two groups.

[0012] As a further description of the above technical solution:

[0013] A load-bearing plate is welded at the center of the rear end of the heat sealing box, and multiple groups of sleeves are vertically penetrated through the load-bearing plate. The inner walls of the sleeves are slidably connected to second sliding rods, the bottom ends of the outer walls of the second sliding rods are sleeved with second return springs, and a slide groove frame is welded at the bottom of the second sliding rod.

[0014] As a further description of the above technical solution:

[0015] A slide groove body is provided on both sides of the inner wall of the slide groove frame, a slider is slidably connected to the inner wall of the slide groove body, and a push rod is welded on the opposite side of the slider.

[0016] As a further description of the above technical solution:

[0017] The opposite surfaces of the sliding block are welded with shaft rods, and the outer wall of the shaft rod is rotatably connected with a flattening wheel.

[0018] As a further description of the above technical solution:

[0019] A bottom box is welded at the bottom of the U-shaped shell, a third return spring is sleeved at the bottom end of the outer wall of the third slide bar, the outer wall of the third return spring is arranged in the bottom box, and a lifting block is welded at the front end of the limit frame.

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

[0021] (1) First, lift the limit frame, then place the area of ​​the packaging bag to be sealed on the top surface of the support plate, and then use the limit frame to press the area of ​​the packaging bag to be sealed. At this time, pull the heat sealing box downward. During this process, the packaging bag will not be skewed or fall. At the same time, the outer wall of the hot pressure sealing block can be accurately inserted into the limit frame to seal the packaging bag, which not only improves the production efficiency of the packaging bag, but also facilitates the staff to operate the entire sealing equipment.

[0022] (2) By setting a connection structure between the first return spring and the first slide bar, the heat sealing box can be lifted upward. When the staff releases their palm from the handle, the first slide bar will quickly reset the heat sealing box. When the staff presses the heat sealing box downward, the flattening wheel will first contact the packaging bag. When the heat sealing box continues to move downward for a distance, the second return spring and the second slide bar will press the flattening wheel inside the slide groove frame tightly against the packaging bag. At this time, the push rod is pushed, and the flattening wheel will roll on the packaging bag, thereby flattening the packaging bag, which is beneficial to improving the stability of the packaging bag. By setting a bottom box, the connection structure between the third return spring and the third slide bar can be protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the utility model;

[0024] Figure 2 It is a right side view of the utility model;

[0025] Figure 3 It is a right side sectional view of the utility model;

[0026] Figure 4 For this utility model Figure 3 A partial enlarged view of the middle A area;

[0027] Figure 5 For this utility model Figure 3 A partial enlarged view of the middle B area;

[0028] Figure 6 For this utility model Figure 2 A partial enlarged view of the middle C area;

[0029] Figure 7 For this utility model Figure 3 A partial enlarged view of area D in the middle.

[0030] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0031] 1. U-shaped shell; 2. Spring shell; 3. Ventilation hole; 4. First slide bar; 5. First return spring; 6. Heat sealing box; 7. Heat pressing sealing block; 8. Handle; 9. Side panel; 10. Lifting plate; 11. Load-bearing plate; 12. Sleeve; 13. Second slide bar; 14. Second return spring; 15. Slide slot frame; 16. Slide slot body; 17. Sliding block; 18. Push rod; 19. Shaft rod; 20. Flattening wheel; 21. Bottom box; 22. Support plate; 23. Slip ring; 24. Third slide bar; 25. Third return spring; 26. Limiting frame; 27. Lifting block. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0035] Reference Figure 1-7 The utility model provides an embodiment of a sealing device for packaging bag production, comprising a U-shaped shell 1, a spring shell 2 vertically penetrates the top front end of the U-shaped shell 1, a cavity structure penetrating up and down is opened inside the spring shell 2, the cavity structure is set to be wide in the middle and narrow at both ends, a ventilation hole 3 is opened on the inner wall of the spring shell 2, the ventilation hole 3 is communicated with the internal cavity structure of the spring shell 2, a first slide bar 4 is slidably connected to the central opening at the bottom of the spring shell 2, a first return spring 5 is sleeved on the top of the outer wall of the first slide bar 4, the first return spring 5 is arranged in the internal cavity of the spring shell 2, a heat sealing box 6 is welded at the bottom of the first slide bar 4, and a connection structure between the first return spring 5 and the first slide bar 4 is provided, the heat sealing box 6 can be lifted upward, a hot pressing sealing block 7 is fixedly connected to the center of the bottom of the heat sealing box 6, and a handle 8 is fixedly connected to the front end of the heat sealing box 6. By setting the handle 8, it is convenient for the staff to press the entire heat sealing box 6 downward.

[0036] Both ends of the inner wall of the U-shaped shell 1 are fixedly connected to side plates 9, and the opposite sides of the side plates 9 are welded with lifting plates 10. By setting the lifting plates 10, it is convenient for the staff to carry the entire sealing equipment. A load-bearing plate 11 is welded at the center of the rear end of the heat sealing box 6. Multiple groups of sleeves 12 are vertically penetrated in the load-bearing plate 11. The height of the sleeve 12 is the same as the height of the load-bearing plate 11. The inner wall of the sleeve 12 is slidably connected with a second slide bar 13. The bottom end of the outer wall of the second slide bar 13 is sleeved with a second return spring 14. A slide groove frame 15 is welded at the bottom of the second slide bar 13. By setting the second return spring 14 and the second slide bar 13 structure, the slide groove frame 15 can be pressed downward. Slide bodies 16 are provided on both sides of the inner wall of the slide frame 15, and sliders 17 are slidably connected to the inner walls of the slide bodies 16. Push rods 18 are welded on the opposite sides of the sliders 17, and shafts 19 are welded on the opposite sides of the sliders 17. The outer wall of the shaft 19 is rotatably connected to a flattening wheel 20. When the staff presses the heat sealing box 6 downward, the flattening wheel 20 will first contact the packaging bag. When the heat sealing box 6 continues to move downward for a distance, the second return spring 14 and the second slide bar 13 will press the flattening wheel 20 inside the slide frame 15 tightly against the packaging bag. At this time, the push rod 18 is pushed, and the flattening wheel 20 will roll on the packaging bag, thereby flattening the packaging bag.

[0037] A bottom box 21 is welded at the bottom of the U-shaped shell 1, a support plate 22 is vertically penetrated at one end of the bottom of the U-shaped shell 1, and slip rings 23 are vertically penetrated at both ends of the support plate 22. The inner wall of the slip ring 23 is slidably connected with a third slide bar 24, and the bottom end of the outer wall of the third slide bar 24 is sleeved with a third return spring 25. The third return spring 25 is arranged in the bottom box 21. By setting the bottom box 21, the connection structure of the third return spring 25 and the third slide bar 24 can be protected. A limit frame 26 is welded on the top of the third slide bar 24 to limit A limit groove running through the upper and lower parts is provided in the positioning frame 26. When the heat sealing box 6 moves downward, the outer wall of the heat pressing sealing block 7 can be vertically inserted into the limit groove inside the limit frame 26. The third return spring 25 can pull the third slide bar 24 downward, so that the bottom surface of the limit frame 26 is close to the upper surface of the support plate 22, and the packaging bag placed on the support plate 22 can be pressed and fixed. A lifting block 27 is welded at the front end of the limit frame 26. By setting the lifting block 27, it is convenient for the staff to lift the limit frame 26.

[0038] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A sealing device for packaging bag production, comprising a U-shaped housing (1), characterized in that: A spring shell (2) is vertically penetrated through the front end of the top of the U-shaped shell (1); a first slide bar (4) is slidably connected to the central opening of the bottom of the spring shell (2); a heat sealing box (6) is welded to the bottom of the first slide bar (4); a heat pressing sealing block (7) is fixedly connected to the center of the bottom of the heat sealing box (6); a support plate (22) is vertically penetrated through one end of the bottom of the U-shaped shell (1); a slip ring (23) is vertically penetrated through both ends of the support plate (22); a third slide bar (24) is slidably connected to the inner wall of the slip ring (23); a limit frame (26) is welded to the top of the third slide bar (24); the heat sealing box (6) is arranged directly above the limit frame (26); the inner wall of the limit frame (26) is sleeved with the outer wall of the heat pressing sealing block (7).

2. The sealing device for packaging bag production according to claim 1, characterized in that: The inner wall of the spring shell (2) is provided with a ventilation hole (3), the top end of the outer wall of the first slide rod (4) is sleeved with a first return spring (5), and the front end of the heat sealing box (6) is fixedly connected with a handle (8).

3. The sealing device for packaging bag production according to claim 1, characterized in that: Both ends of the inner wall of the U-shaped shell (1) are fixedly connected with side plates (9), and opposite surfaces of the side plates (9) are welded with lifting plates (10), and two groups of the side plates (9) and lifting plates (10) are provided.

4. The sealing device for packaging bag production according to claim 1, characterized in that: A load-bearing plate (11) is welded at the center of the rear end of the heat sealing box (6), and multiple groups of sleeves (12) vertically penetrate the load-bearing plate (11). The inner walls of the sleeves (12) are slidably connected to second sliding rods (13), and the bottom ends of the outer walls of the second sliding rods (13) are sleeved with second return springs (14), and a slide groove frame (15) is welded to the bottom of the second sliding rod (13).

5. The sealing device for packaging bag production according to claim 4, characterized in that: A slide groove body (16) is provided on both sides of the inner wall of the slide groove frame (15), a slider (17) is slidably connected to the inner wall of the slide groove body (16), and a push rod (18) is welded to the opposite side of the slider (17).

6. The sealing device for packaging bag production according to claim 5, characterized in that: The opposite surfaces of the slider (17) are welded with shaft rods (19), and the outer wall of the shaft rod (19) is rotatably connected with a flattening wheel (20).

7. The sealing device for packaging bag production according to claim 1, characterized in that: A bottom box (21) is welded to the bottom of the U-shaped shell (1); a third return spring (25) is sleeved on the bottom end of the outer wall of the third slide rod (24); the outer wall of the third return spring (25) is arranged in the bottom box (21); and a lifting block (27) is welded to the front end of the limit frame (26).

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