Sealing heat sealing machine

Abstract

The utility model relates to the technical field of endoscope production packaging devices, and discloses a sealing heat sealing machine which comprises a main body, a linkage mechanism and a synchronizing mechanism, the main body comprises a base and a main rack, the linkage mechanism comprises two U-shaped frames, two long hydraulic rods and two short hydraulic rods, the synchronizing mechanism comprises a driving shaft, three driven shafts and a sliding block, and the driving shaft is connected with the main rack. Sliding grooves are formed in the positions, close to the upper portions and the lower portions of the two sides, of the front end of the main machine frame in an axial symmetry mode, and the two U-shaped frames are arranged in the four sliding grooves in a sliding mode through protruding blocks fixedly arranged at the rear ends, close to the middles of the two sides, of the two U-shaped frames correspondingly. According to the sealing heat-sealing machine, the two U-shaped frames are driven by the air cylinder to be matched with linkage of the hydraulic rods to achieve synchronous closing of the two U-shaped frames, the stroke of the air cylinder is reduced, the sealing time is shortened, and the working efficiency is improved; and the requirements of packaging bags for different widths of sealing positions can be well met.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscope production and packaging devices, in particular to a sealing and heat sealing machine. Background Art

[0002] Endoscopes are precision medical devices used for inspection and surgery, and their packaging is crucial. Well-designed packaging protects endoscopes from damage during transportation and storage, maintaining their sterility and preventing cross-contamination. Furthermore, packaging ensures compliance with medical device regulations, facilitates sterilization, and enhances efficiency and safety. Therefore, appropriate packaging is crucial for the safe use and maintenance of endoscopes. A heat sealer is a device used to seal thermoplastic materials such as plastic films and composite films. It uses a heating element to melt the contacting surfaces of the materials, which then rapidly cools and solidifies to create a seal. This machine is widely used in the food, pharmaceutical, and cosmetics industries to ensure a tight seal and extend the shelf life of the product. Easy to operate, simply set the temperature and speed, and the machine automatically seals the package. The seal is smooth, tight, and moisture- and dust-resistant. Its high efficiency and energy-saving features make it an indispensable piece of equipment in the modern packaging industry. Proper use and maintenance can extend the life of the equipment and reduce production costs.

[0003] After searching, the existing patent (publication number: CN221718995U) discloses a "sealing heat sealing machine, whose technical solution includes: a bottom plate, a heating device, a bearing block, a movable block and a screw rod. A fixed frame is welded to the top of the bottom plate, a hydraulic cylinder is installed at the top of the fixed frame, a fixed plate is installed at the bottom of the hydraulic cylinder, sliding rods are installed on both sides of the fixed plate, a heating device is installed at the bottom of the fixed plate, a heating plate is installed at the bottom of the heating device, a bearing plate is welded to the inside of the fixed frame below the heating plate, the bearing plate is provided with a screw hole, the screw rod is meshed with the screw hole, a bearing is installed at the bottom of the movable block, the top of the screw is fixedly connected to the inner ring of the bearing, and two movable rods are symmetrically installed at the bottom of the movable block on both sides of the bearing. The utility model has the advantage of providing lateral support to the food packaging bag when sealing the food packaging bag, thereby preventing the soup inside the food packaging bag from leaking."

[0004] During the development of this application, the inventors discovered the following problems with the prior art: While the aforementioned comparative patent provides a heat-sealing machine by providing a base plate, a heating device, a bearing block, a movable block, and a screw, it relies solely on a unidirectional descent of the heating plate for heat sealing. This results in an excessively long travel of the heating plate during a single sealing process, making it difficult to meet the demand for improved work efficiency. Therefore, those skilled in the art have provided a heat-sealing machine to address the problems raised in the aforementioned background art. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a sealing heat sealing machine. The sealing heat sealing machine is driven by a cylinder and coordinated with multiple hydraulic rods to achieve the synchronous approach of two U-shaped frames, thereby reducing the cylinder stroke, shortening the sealing time, and improving work efficiency. In addition, the two sealing rollers have four sealing tables of different widths that are centrally symmetrical, which can well adapt to the requirements of packaging bags for different widths of the sealing part.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sealing heat sealing machine, comprising a main body, a linkage mechanism and a synchronization mechanism, the main body comprising a base and a main frame, the linkage mechanism comprising two U-shaped frames, two long hydraulic rods and two short hydraulic rods, the synchronization mechanism comprising a driving shaft, three driven shafts and a slider, the front end of the main frame near the upper and lower positions on both sides are axially symmetrically provided with sliding grooves, the two U-shaped frames are respectively slidably set into the four sliding grooves through the protrusions fixedly set in the middle of the two sides at the rear end, a sliding groove is opened in the middle of the inner wall of one side of the main frame, and the slider is slidably set into the inside of the sliding groove.

[0007] Furthermore, pillars are fixedly provided at both sides of the rear lower end of the main frame in an axially symmetrical manner, and the lower ends of the two pillars are fixedly provided at both sides of the rear upper end of the base in an axially symmetrical manner.

[0008] Furthermore, the lower ends of the two short hydraulic rods are axially symmetrically fixed to the front and side positions of the upper end of the base, and the upper ends of the two short hydraulic rods are fixed to the middle of the lower end of the lower one of the two U-shaped frames near the two sides.

[0009] Furthermore, a cylinder is fixedly installed through the middle position of the upper end of the main frame, and the lower end of the cylinder is fixed to the upper end center of one of the two U-shaped frames. Telescopic rods are fixedly installed on the lower bottom surface of the upper end of the main frame near the middle position of both sides in an axially symmetrical manner, and the lower ends of the two telescopic rods are respectively fixed to the upper end of one of the two U-shaped frames near the middle position of both sides in an axially symmetrical manner.

[0010] Furthermore, a long board is fixedly provided at the lower position of both ends of the upper one of the two U-shaped frames, a short board is fixedly provided at the upper position of both ends of the lower one of the two U-shaped frames, a buffer pad is fixedly provided at the front middle position of the lower ends of the two long boards and the center of the upper ends of the two short boards, the upper ends of the two long hydraulic rods are respectively fixed to the rear middle position of the lower ends of the two long boards, and the lower ends of the two long hydraulic rods are respectively fixed to the upper end of the base near the middle position of both sides.

[0011] Furthermore, liquid pipes are fixedly provided through the lower positions of the two long hydraulic rods, and one ends of the two liquid pipes are respectively fixedly provided through the lower positions of the two short hydraulic rods.

[0012] Furthermore, the driving shaft is rotatably arranged to the center of the inner wall of one side of the lower one of the two U-shaped frames, and a motor is fixedly arranged on one side of the lower one of the two U-shaped frames through a bracket. One end of the outer side of the driving shaft is fixedly connected to the output end of the motor, and the three driven shafts are connected to the center of the inner wall of the other side of the lower one of the two U-shaped frames and the center of the inner walls of both sides of the upper one of the two U-shaped frames. Sealing rollers are fixedly arranged between the driving shaft and the lower driven shaft and between the two upper driven shafts.

[0013] Furthermore, a central rotating shaft is provided on the inner side of the slider, one of the three driven shafts close to the side of the slide and the driving shaft are connected to the central rotating shaft through a synchronous belt and a synchronous wheel respectively, and two springs are fixed axially symmetrically between the rear end of the slider and the rear end of the slide.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model proposes a sealing heat sealing machine, which drives the upper one of the two U-shaped frames to descend through a cylinder, and drives two long hydraulic rods to shorten through two long plates. Two short hydraulic rods connected to the two long hydraulic rods through two liquid pipes then extend to lift the lower one of the two U-shaped frames, thereby achieving synchronous convergence of the two U-shaped frames, ensuring consistency and accuracy in the sealing process, reducing the stroke of the cylinder during the sealing process, shortening the sealing time, and effectively improving work efficiency.

[0016] 2. The utility model proposes a sealing and heat-sealing machine, in which the two electrically heated sealing rollers are both centrally symmetrical and have four sealing surfaces of different widths fixedly arranged along the axial direction. The two sealing rollers are centrally symmetrical, ensuring that each rotation of ninety degrees can make the widths of the two sealing surfaces closest to each other the same, thereby well adapting to the different requirements of packaging bags of different sizes for the width of the sealing part. At the same time, the driving shaft and one of the three driven shafts are connected to the rotating shaft through a synchronous belt and a synchronous pulley respectively, ensuring the synchronous operation of the two sealing rollers, improving the uniformity and consistency of the sealing, while reducing unnecessary energy consumption and realizing effective energy utilization.

[0017] 3. The utility model proposes a sealing and heat sealing machine, in which two springs fixedly arranged between the rear end of the slider and the rear end of the slide groove are always kept in a stretched state. When the two sealing rollers approach each other along with the two U-shaped frames, the two springs recover a certain deformation and pull the slider to slide backward in the slide groove, thereby ensuring that the two synchronous belts are always kept in a taut state, thereby ensuring the stability and reliability of the synchronous belt transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an axonometric diagram of the present utility model;

[0019] Figure 2 This is an axonometric diagram of the present invention when viewed from the other side;

[0020] Figure 3 This is an axonometric diagram of the present invention when viewed from the rear end;

[0021] Figure 4 This is an axonometric diagram of the main frame of the present invention when viewed from the other side;

[0022] Figure 5 This is an axonometric diagram of the synchronization mechanism of the present invention when two sealing rollers are not installed;

[0023] Figure 6 This is an axonometric diagram of the U-shaped frame of the present invention when viewed from the rear end.

[0024] Legend:

[0025] 1. Main body; 2. Linkage mechanism; 3. Synchronous mechanism; 101. Base; 102. Main frame; 103. Slide; 104. Pillar; 201. Cylinder; 202. Telescopic rod; 203. U-shaped frame; 204. Long board; 205. Short board; 206. Long hydraulic rod; 207. Short hydraulic rod; 208. Liquid pipe; 209. Buffer pad; 301. Motor; 302. Driving shaft; 303. Driven shaft; 304. Sealing roller; 305. Slider; 306. Transfer shaft; 307. Spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Reference Figure 1 、 Figure 2 、 Figure 4 and Figure 5 The utility model provides an embodiment of a sealing heat sealing machine, including a main body 1, a linkage mechanism 2 and a synchronization mechanism 3. The main body 1 includes a base 101 and a main frame 102. The linkage mechanism 2 includes two U-shaped frames 203, two long hydraulic rods 206 and two short hydraulic rods 207. The synchronization mechanism 3 includes a driving shaft 302, three driven shafts 303 and a slider 305. The front end of the main frame 102 is axially symmetrically provided with sliding grooves near the upper and lower positions of both sides. The two U-shaped frames 203 are respectively slidably set into the four sliding grooves through the protrusions fixed in the middle of the two sides at the rear end. A sliding groove 103 is opened in the middle of the inner wall of one side of the main frame 102, and the slider 305 is slidably set into the sliding groove 103.

[0028] Specifically, the main frame 102 in the main body 1 provides a good installation position for the two U-shaped frames 203 in the linkage mechanism 2 through two sliding grooves, and the main frame 102 in the main body 1 provides a good installation position for the slider 305 in the synchronization mechanism 3 through two sliding grooves 103.

[0029] Reference Figure 2 、 Figure 3 and Figure 4 : The lower end of the main frame 102 is symmetrically fixed with pillars 104 on both sides of the rear end, and the lower ends of the two pillars 104 are symmetrically fixed to the upper end of the base 101 on both sides of the rear end;

[0030] Specifically, the two pillars 104 axially symmetrically fixed at the rear and side positions of the lower end of the main frame 102 provide good support, making the connection between the main frame 102 and the base 101 more stable, enhancing the stability of the entire machine. The axially symmetrical arrangement of the two pillars 104 ensures the balance of the machine during operation, helps to reduce structural stress caused by asymmetry, and extends the service life of the machine.

[0031] Reference Figure 2 、 Figure 3 and Figure 6 : The lower ends of the two short hydraulic rods 207 are respectively fixed to the front and side positions of the upper end of the base 101 in an axially symmetrical manner, and the upper ends of the two short hydraulic rods 207 are respectively fixed to the middle of the lower end of the lower one of the two U-shaped frames 203 near the two sides. A cylinder 201 is fixedly provided through the middle position of the upper end of the main frame 102, and the lower end of the cylinder 201 is fixed to the upper end center of the upper one of the two U-shaped frames 203. Telescopic rods 202 are fixedly provided on the lower bottom surface of the upper end of the main frame 102 near the middle positions of both sides in an axially symmetrical manner. The lower ends of the two telescopic rods 202 are respectively fixed to the upper end of the upper one of the two U-shaped frames 203 near the middle positions of both sides in an axially symmetrical manner;

[0032] The upper one of the two U-shaped frames 203 is fixedly provided with a long board 204 at the lower position of both ends, the lower one of the two U-shaped frames 203 is fixedly provided with a short board 205 at the upper position of both ends, a buffer pad 209 is fixedly provided at the middle front position of the lower end of the two long boards 204 and the center of the upper end of the two short boards 205, the upper ends of the two long hydraulic rods 206 are respectively fixed to the middle rear position of the lower end of the two long boards 204, and the lower ends of the two long hydraulic rods 206 are respectively fixed to the upper end of the base 101 near the middle position of both sides, and the lower positions of the two long hydraulic rods 206 are fixedly provided with a liquid pipe 208, and one end of the two liquid pipes 208 is respectively fixed to the lower position of the two short hydraulic rods 207;

[0033] Specifically, when the upper one of the two U-shaped frames 203 moves downward under the drive of the cylinder 201, it drives the two long plates 204 to move downward, and the two long hydraulic rods 206 are shortened accordingly. The two short hydraulic rods 207 connected to the two long hydraulic rods 206 through two liquid pipes 208 are extended accordingly, and the lower one of the two U-shaped frames 203 is lifted synchronously, so that the two U-shaped frames 203 are synchronously brought together, ensuring consistency and accuracy in the sealing process, fully reducing the stroke of the cylinder 201 during the sealing process, shortening the sealing time, and improving work efficiency;

[0034] When in use, the two telescopic rods 202 effectively ensure the balance and stability of the upper one of the two U-shaped frames 203 during the lifting process, and the four buffer pads 209 fixed at the lower ends of the two long plates 204 and the upper ends of the two short plates 205 can alleviate the impact of the hydraulic rod during movement, reduce noise and vibration, protect machine components, and extend service life.

[0035] Reference Figure 2 、 Figure 3 and Figure 5 When the bottle is fully opened, the bottle 302 is in the closed position, and the bottle 303 is in the closed position. When the bottle is fully opened, the bottle 303 is in the closed position, and the bottle 303 is in the closed position. When the bottle is fully opened, the bottle 303 is in the closed position, and the bottle 303 is in the closed position.

[0036] Specifically, during use, according to actual needs, the motor 301 adopts a servo motor. The driving motor 301 drives the driving shaft 302 and the lower one of the two sealing rollers 304 to rotate 90 degrees. The intermediate shaft 306 connected to the driving shaft 302 via a synchronous belt and a synchronous wheel rotates 90 degrees in the same direction accordingly. The driven shaft 303 connected to the intermediate shaft 306 via a synchronous belt and a synchronous wheel rotates 90 degrees in the same direction accordingly, driving the upper one of the two sealing rollers 304 to rotate 90 degrees in the same direction.

[0037] The two electrically heated sealing rollers 304 are centrally symmetrical and have four sealing surfaces of different widths fixedly arranged along the axial direction. The two sealing rollers 304 are centrally symmetrical, ensuring that the widths of the two sealing surfaces closest to each other are the same each time they rotate 90 degrees. This effectively adapts to the different sealing width requirements of packaging bags of different sizes, improving the adaptability and flexibility of the machine. The driving shaft 302 and one of the three driven shafts 303 are connected to the rotating shaft 306 via a synchronous belt and a synchronous pulley, respectively, to ensure the synchronous operation of the two sealing rollers 304, improve the uniformity and consistency of the sealing, and at the same time reduce unnecessary energy consumption and achieve efficient energy utilization.

[0038] The two springs 307 fixedly arranged between the rear end of the slider 305 and the rear end of the slide 103 always remain in a stretched state. When the two sealing rollers 304 approach each other as the two U-shaped frames 203 move closer to each other, the two springs 307 recover a certain deformation and pull the slider 305 to slide backward in the slide 103, thereby ensuring that the two synchronous belts always remain in a taut state.

[0039] Working principle: When in use, according to actual needs, the driving motor 301 drives the driving shaft 302 and the lower one of the two sealing rollers 304 to rotate 90 degrees, and the intermediate shaft 306 connected to the driving shaft 302 through a synchronous belt and a synchronous wheel rotates 90 degrees in the same direction. The driven shaft 303 connected to the intermediate shaft 306 through a synchronous belt and a synchronous wheel rotates 90 degrees in the same direction, driving the upper one of the two sealing rollers 304 to rotate 90 degrees in the same direction. It is ensured that each rotation of 90 degrees can make the width of the two sealing surfaces closest to each other the same, thereby well adapting to the different requirements of the sealing width of packaging bags of different sizes;

[0040] Secondly, the two springs 307 fixed between the rear end of the slider 305 and the rear end of the slide 103 always remain in a stretched state. When the two sealing rollers 304 approach each other as the two U-shaped frames 203 move closer to each other, the two springs 307 recover a certain deformation and pull the slider 305 to slide backward in the slide 103, thereby ensuring that the two synchronous belts always remain taut.

[0041] Finally, when the upper one of the two U-shaped frames 203 moves downward under the drive of the cylinder 201, it drives the two long plates 204 to move downward, and the two long hydraulic rods 206 are shortened accordingly. The two short hydraulic rods 207 connected to the two long hydraulic rods 206 through two liquid pipes 208 are extended accordingly, and the lower one of the two U-shaped frames 203 is lifted synchronously, so that the two U-shaped frames 203 are synchronously brought together, ensuring consistency and accuracy in the sealing process, fully reducing the stroke of the cylinder 201 during the sealing process, shortening the sealing time, and improving work efficiency.

[0042] 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 replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sealing heat sealing machine, comprising a main body (1), a linkage mechanism (2) and a synchronization mechanism (3), characterized in that: The main body (1) comprises a base (101) and a main frame (102); the linkage mechanism (2) comprises two U-shaped frames (203), two long hydraulic rods (206) and two short hydraulic rods (207); the synchronization mechanism (3) comprises a driving shaft (302), three driven shafts (303) and a slider (305); the front end of the main frame (102) is provided with sliding grooves in an axially symmetrical manner near the upper and lower positions of both sides; the two U-shaped frames (203) are respectively slidably arranged in the four sliding grooves through protrusions fixedly arranged in the middle of the two sides at the rear end; a sliding groove (103) is provided in the middle position of the inner wall of one side of the main frame (102); and the slider (305) is slidably arranged in the sliding groove (103).

2. The sealing and heat sealing machine according to claim 1, characterized in that: Supports (104) are fixedly provided at both sides of the lower end of the main frame (102) in an axially symmetrical manner. The lower ends of the two supports (104) are fixedly provided at both sides of the upper end of the base (101) in an axially symmetrical manner.

3. The sealing and heat sealing machine according to claim 1, characterized in that: The lower ends of the two short hydraulic rods (207) are fixedly arranged in an axisymmetric manner to the front and side positions of the upper end of the base (101), and the upper ends of the two short hydraulic rods (207) are fixedly arranged to the middle of the lower end of the lower one of the two U-shaped frames (203) near the two sides.

4. The sealing and heat sealing machine according to claim 1, characterized in that: A cylinder (201) is fixedly provided at the middle position of the upper end of the main frame (102), and the lower end of the cylinder (201) is fixedly provided at the center of the upper end of one of the two U-shaped frames (203). Telescopic rods (202) are fixedly provided on the lower bottom surface of the upper end of the main frame (102) near the middle positions of both sides in an axially symmetrical manner. The lower ends of the two telescopic rods (202) are respectively fixedly provided at the upper end of one of the two U-shaped frames (203) near the middle positions of both sides in an axially symmetrical manner.

5. The sealing and heat sealing machine according to claim 1, characterized in that: The upper one of the two U-shaped frames (203) is fixedly provided with a long board (204) at the lower position of both ends, the lower one of the two U-shaped frames (203) is fixedly provided with a short board (205) at the upper position of both ends, a buffer pad (209) is fixedly provided at the front middle position of the lower ends of the two long boards (204) and the center of the upper ends of the two short boards (205), the upper ends of the two long hydraulic rods (206) are respectively fixedly provided at the rear middle position of the lower ends of the two long boards (204), and the lower ends of the two long hydraulic rods (206) are respectively fixedly provided at the middle position of the upper end of the base (101) near both sides.

6. The sealing and heat sealing machine according to claim 1, characterized in that: Liquid pipes (208) are fixedly provided through the lower positions of the rod bodies of the two long hydraulic rods (206), and one end of the two liquid pipes (208) is fixedly provided through the lower positions of the rod bodies of the two short hydraulic rods (207).

7. The sealing and heat sealing machine according to claim 1, characterized in that: The driving shaft (302) is rotatably arranged to the center of the inner wall of one side of the lower one of the two U-shaped frames (203); a motor (301) is fixedly arranged on one side of the lower one of the two U-shaped frames (203) through a bracket; an outer end of the driving shaft (302) is fixedly connected to the output end of the motor (301); the three driven shafts (303) are arranged at the center of the inner wall of the other side of the lower one of the two U-shaped frames (203) and at the center of the inner walls of both sides of the upper one of the two U-shaped frames (203); and sealing rollers (304) are fixedly arranged between the driving shaft (302) and the lower driven shaft (303) and between the two upper driven shafts (303).

8. The sealing and heat sealing machine according to claim 1, characterized in that: A central rotating shaft (306) is provided on the inner side of the slider (305) for rotation. One of the three driven shafts (303) close to the side of the chute (103) and the driving shaft (302) are connected to the central rotating shaft (306) via a synchronous belt and a synchronous wheel respectively. Two springs (307) are fixedly provided between the rear end of the slider (305) and the rear end of the chute (103) in an axially symmetrical manner.

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