Sealing machine

Abstract

The utility model provides a sealing machine which comprises a supporting frame, a moving assembly, a fixing assembly, a connecting assembly and a driving assembly, the moving assembly comprises an upper pressing piece and an upper cutting piece which are connected with each other, the connecting assembly is connected to the supporting frame in a sliding mode, and the fixing assembly comprises a lower pressing piece and a lower cutting piece which are connected with each other. The upper press-fit piece and the lower press-fit piece are correspondingly arranged to seal the plastic bag, and the power output end of the driving assembly is connected with the connecting assembly. According to the device, the driving assembly can drive the connecting assembly to drive the moving assembly to get close to or get away from the fixing assembly in a reciprocating mode, and the moving assembly comprises the upper pressing piece and the upper cutting piece which are connected with each other; the upper pressing piece and the lower pressing piece seal a plastic package bag, and meanwhile the lower cutting piece and the upper cutting piece cut the plastic package bag, so that it is ensured that a notch is matched with a sealing edge, and the sealing performance and appearance of a seal are ensured.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, and in particular to a sealing machine. Background Technology

[0002] Used medical devices need to be cleaned and disinfected. After cleaning and disinfection, they need to be placed in plastic bags and sealed for storage to prevent contamination by bacteria and viruses. Medical plastic bag sealing machines are commonly used for sealing plastic bags. They can be used to seal various types of medical plastic bags and are a common disinfection auxiliary tool in departments such as hospital sterilization supply rooms, operating rooms, and dental clinics.

[0003] Existing sealing machines typically use a step-by-step approach of cutting and heat-sealing, which may result in a mismatch between the cut and the sealing edge, affecting the sealing performance and appearance of the final product. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a sealing machine that solves the problem that the sealing machines in the prior art usually use cutting and hot-melt sealing in separate steps, which may result in inaccurate connection between the cut and the sealing edge, affecting the sealing performance and appearance of the final product.

[0005] This utility model provides a sealing machine, including a support frame, a moving component, a fixed component, a connecting component, and a driving component. The moving component includes an upper pressing member and an upper cutting member connected to each other. The upper cutting member is connected to the connecting component, and the connecting component is slidably connected to the support frame. The fixed component includes a lower pressing member and a lower cutting member connected to each other. The lower cutting member is fixedly connected to the support frame. The upper pressing member and the lower pressing member are correspondingly arranged to seal the plastic bag, and the lower cutting member and the upper cutting member are correspondingly arranged to cut the plastic bag. The driving component is disposed on the support frame, and the power output end of the driving component is connected to the connecting component. The driving component is used to drive the connecting component to move the moving component back and forth towards or away from the fixed component.

[0006] According to some embodiments of the present invention, the driving assembly includes a first driving member, a transmission shaft, and an eccentric wheel. The first driving member is disposed on the support frame. The shaft of the transmission shaft is connected to the power output end of the first driving member. The end of the transmission shaft is connected to the eccentric wheel. The central axis of the transmission shaft is offset from the central axis of the eccentric wheel. The outer wall surface of the eccentric wheel abuts against the connecting assembly. The first driving member is used to drive the transmission shaft to rotate so that the eccentric wheel drives the connecting assembly to reciprocate.

[0007] According to some embodiments of the present invention, the upper cutting member is connected to the connecting assembly via a connecting block. The connecting block is threaded with an adjusting screw. The upper pressing member has a countersunk hole through which the adjusting screw can pass. A first flange is provided in the countersunk hole. A second flange is provided on the adjusting screw. A first spring is provided between the first flange and the second flange. The first spring is used to push the upper pressing member to abut against the connecting block.

[0008] According to some embodiments of the present invention, the connecting assembly includes a slider and an abutment block connected to each other, the support frame is provided with a slide rail that slides with the slider, the connecting block is connected to the slider, and the abutment block abuts against the outer peripheral side of the eccentric wheel.

[0009] According to some embodiments of the present invention, the lower pressing component is provided with a heating element, which is used to heat the lower pressing component.

[0010] According to some embodiments of the present invention, the sealing machine further includes a conveying assembly disposed on the support frame, the conveying assembly being used to convey the plastic bag between the moving assembly and the fixed assembly.

[0011] According to some embodiments of the present invention, the conveying assembly includes a second driving member, a lower clamping roller, and an upper clamping roller. The second driving member is disposed on the support frame. The lower clamping roller is connected to the power output end of the second driving member. The upper clamping roller is correspondingly arranged with the lower clamping roller to clamp the plastic bag. The second driving member is used to drive the lower clamping roller to rotate in order to convey the plastic bag.

[0012] According to some embodiments of this utility model, the support frame is provided with a slot, and a locking block is slidably connected in the slot. The locking block is rotatably connected to the upper clamping roller. A limiting plate is provided on the support frame at the position corresponding to the slot. A second spring is provided between the limiting plate and the locking block. The second spring is used to drive the locking block to press down and drive the upper clamping roller to press the plastic bag tightly onto the lower clamping roller.

[0013] According to some embodiments of the present invention, the support frame is provided with a first support roller and a second support roller located at different heights, and a plastic bag wound on a roll is placed between the first support roller and the second support roller.

[0014] According to some embodiments of the present invention, the support frame is provided with a pressure roller and a guide plate, the guide plate is inclined, and a gap is formed between the pressure roller and the guide plate for the plastic bag to pass through.

[0015] Beneficial Effects: This utility model provides a sealing machine, including a support frame, a moving component, a fixed component, a connecting component, and a driving component. The moving component includes an upper pressing component and an upper cutting component connected to each other. The connecting component is slidably connected to the support frame. The fixed component includes a lower pressing component and a lower cutting component connected to each other. The upper and lower pressing components are correspondingly arranged to seal the plastic bag. The power output end of the driving component is connected to the connecting component. In this application, the driving component can drive the connecting component to move the moving component back and forth towards or away from the fixed component. Since the moving component includes the upper pressing component and the upper cutting component connected to each other, during one pressing operation of the moving component, the upper and lower pressing components seal the plastic bag while the lower and upper cutting components cut the plastic bag, thereby ensuring that the cut matches the sealing edge and guaranteeing the sealing performance and appearance of the seal. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the sealing machine of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the sealing machine of this utility model (excluding the moving components and the fixed components);

[0019] Figure 3 This is a schematic diagram of the structure when the movable component, fixed component, and connecting component of this utility model are connected;

[0020] Figure 4 This is a cross-sectional view of the sealing machine of this utility model;

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0022] Figure 6 This is a structural schematic diagram of the sealing machine of this utility model from another perspective.

[0023] In the diagram: 1. Support frame; 11. Slide rail; 12. Bayonet; 13. Clamping block; 14. Limiting plate; 15. Second spring; 16. First support roller; 17. Second support roller; 18. Pressure roller; 19. Guide plate; 2. Moving assembly; 21. Upper pressing component; 211. Countersunk hole; 212. First flange; 22. Upper cutting component; 3. Fixing assembly; 31. Lower pressing component; 311. Heating component; 32. Lower cutting component; 4. Connecting assembly; 41. Slider; 42. Abutment block; 5. Driving assembly; 51. First driving component; 52. Transmission shaft; 53. Eccentric wheel; 6. Connecting block; 61. Adjusting screw; 62. Second flange; 63. First spring; 7. Conveying assembly; 71. Second driving component; 72. Lower clamping roller; 73. Upper clamping roller. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figures 1 to 6 This utility model provides a sealing machine, including a support frame 1, a moving component 2, a fixed component 3, a connecting component 4, and a driving component 5. The moving component 2 includes an upper pressing member 21 and an upper cutting member 22 connected to each other. The upper cutting member 22 is connected to the connecting component 4, and the connecting component 4 is slidably connected to the support frame 1. The fixed component 3 includes a lower pressing member 31 and a lower cutting member 32 connected to each other. The lower cutting member 32 is fixedly connected to the support frame 1. The upper pressing member 21 and the lower pressing member 31 are correspondingly arranged to seal the plastic bag, and the lower cutting member 32 and the upper cutting member 22 are correspondingly arranged to cut the plastic bag. The driving component 5 is disposed on the support frame 1, and the power output end of the driving component 5 is connected to the connecting component 4. The driving component 5 is used to drive the connecting component 4 to move the moving component 2 back and forth towards or away from the fixed component 3.

[0026] In this application, the plastic seal bag is conveyed between the moving component 2 and the stationary component 3. When the sealing area of ​​the plastic seal bag enters between the upper pressing member 21 and the lower pressing member 31, the heating system (such as a heating wire or heating plate) begins to heat. The heat softens the plastic material of the sealing portion of the plastic seal bag, bringing it to a molten state. At this point, the plastic surface becomes viscous. When the material softens to a certain extent, a predetermined pressure between the upper pressing member 21 and the lower pressing member 31 presses the sealing portion together. At this point, through the applied heat and pressure, the plastic portion of the sealing area adheres together, forming a strong seal. Simultaneously with the sealing, the lower cutting member 32 and the upper cutting member 22 also cut the plastic seal bag, thereby ensuring that the cut matches the sealing edge, guaranteeing the sealing performance and appearance of the seal.

[0027] After the sealing and cutting processes are completed, the drive component 5 drives the connecting component 4 to move the moving component 2 away from the fixed component 3, forming a gap between the moving component 2 and the fixed component 3 that allows the plastic bag to enter, in order to prepare for the next sealing and cutting process.

[0028] According to some embodiments of this utility model, the driving assembly 5 includes a first driving member 51, a transmission shaft 52, and an eccentric wheel 53. The first driving member 51 is mounted on the support frame 1. The shaft of the transmission shaft 52 is connected to the power output end of the first driving member 51. The end of the transmission shaft 52 is connected to the eccentric wheel 53. The central axis of the transmission shaft 52 is offset from the central axis of the eccentric wheel 53. The outer wall surface of the eccentric wheel 53 abuts against the connecting assembly 4. The first driving member 51 drives the transmission shaft 52 to rotate, causing the eccentric wheel 53 to drive the connecting assembly 4 to reciprocate. In this embodiment, since the central axis of the eccentric wheel 53 is offset from the central axis of the transmission shaft 52 (i.e., not on the same straight line), each time the transmission shaft 52 drives the eccentric wheel 53 to rotate one revolution, a point of the eccentric wheel 53 will move along an irregular trajectory relative to the central axis of the transmission shaft 52. This irregular movement leads to continuous changes in force, thereby driving the connecting assembly 4, which abuts against the eccentric wheel 53, to reciprocate. In this embodiment, the first driving component 51 is a motor.

[0029] According to some embodiments of this utility model, the upper cutting member 22 is connected to the connecting assembly 4 via a connecting block 6. The connecting block 6 is threaded with an adjusting screw 61. The upper pressing member 21 has a countersunk hole 211 through which the adjusting screw 61 passes. A first flange 212 is provided within the countersunk hole 211, and a second flange 62 is provided on the adjusting screw 61. A first spring 63 is provided between the first flange 212 and the second flange 62, and the first spring 63 is used to push the upper pressing member 21 against the connecting block 6. During the sealing process, the upper pressing member 21 and the lower pressing member 31 need to cooperate to provide a certain pre-pressure at the sealing point to ensure the sealing is completed. During the cutting process, the upper cutting member 22 and the lower cutting member 32 need to be staggered to ensure that the plastic bag is completely cut. Therefore, when the upper pressing member 21 and the upper cutting member 22 are pressed down simultaneously, the upper pressing member 21 first abuts against the lower pressing member 31, while the upper cutting member 22 continues to press down and is offset from the lower cutting member 32, cutting the plastic bag. At this time, the upper pressing member 21 separates from the connecting block 6, and the first spring 63 is further compressed, providing preload force for the upper pressing member 21. When the upper pressing member 21 and the upper cutting member 22 return to their original positions, the compressed first spring 63 drives the upper pressing member 21 to abut against the connecting block 6.

[0030] According to some embodiments of the present invention, the connecting component 4 includes a slider 41 and an abutment block 42 connected to each other. The support frame 1 is provided with a slide rail 11 that slides with the slider 41. The connecting block 6 is connected to the slider 41. The abutment block 42 abuts against the outer peripheral side of the eccentric wheel 53.

[0031] According to some embodiments of this utility model, the lower pressing member 31 is provided with a heating element 311, which is used to heat the lower pressing member 31. Preferably, the lower pressing member 31 has a receiving hole, and the heating element 311 is disposed in the receiving hole, so that the heating element 311 transfers heat to the lower pressing member 31. The heating element 311 has a rod-shaped structure.

[0032] According to some embodiments of the present invention, the sealing machine further includes a conveying component 7 disposed on the support frame 1, the conveying component 7 being used to convey the plastic sealing bag between the moving component 2 and the fixed component 3.

[0033] Preferably, the conveying assembly 7 includes a second drive member 71, a lower clamping roller 72, and an upper clamping roller 73. The second drive member 71 is mounted on the support frame 1. The lower clamping roller 72 is connected to the power output end of the second drive member 71. The upper clamping roller 73 is correspondingly arranged with the lower clamping roller 72 to clamp the plastic-sealed bag. The second drive member 71 drives the lower clamping roller 72 to rotate and convey the plastic-sealed bag. The surfaces of the lower clamping roller 72 and the upper clamping roller 73 are usually designed to have a certain friction. When the lower clamping roller 72 and the upper clamping roller 73 rotate, sufficient friction is generated between the plastic-sealed bag and the surfaces of the lower clamping roller 72 and the upper clamping roller 73, pushing the plastic-sealed bag forward along the conveying direction. The greater the friction, the more stably the plastic-sealed bag can move under the clamping of the lower clamping roller 72 and the upper clamping roller 73. In this embodiment, the second drive member 71 is a motor.

[0034] According to some embodiments of this utility model, the support frame 1 has a slot 12, and a locking block 13 is slidably connected within the slot 12. The locking block 13 is rotatably connected to the upper clamping roller 73. A limiting plate 14 is provided on the support frame 1 at a position corresponding to the slot 12. A second spring 15 is provided between the limiting plate 14 and the locking block 13. The second spring 15 is used to drive the locking block 13 to press down, causing the upper clamping roller 73 to press the plastic-sealed bag tightly onto the lower clamping roller 72. In this embodiment, the second spring 15 provides pre-tension to the upper clamping roller 73, ensuring sufficient friction between both the lower clamping roller 72 and the upper clamping roller 73 and the plastic-sealed bag. The locking block 13 engaging within the slot 12 effectively prevents the upper clamping roller 73 from shifting during rotation.

[0035] According to some embodiments of the present invention, the support frame 1 is provided with a first support roller 16 and a second support roller 17 located at different heights, and a plastic bag wound on a roll is placed between the first support roller 16 and the second support roller 17.

[0036] According to some embodiments of this utility model, the support frame 1 is provided with a pressure roller 18 and a guide plate 19. The guide plate 19 is inclined, and a gap is formed between the pressure roller 18 and the guide plate 19 for the plastic bag to pass through. It can be understood that the plastic bag, which is placed between the first support roller 16 and the second support roller 17 and is wound on a roll, passes through the gap formed between the pressure roller 18 and the guide plate 19, and then enters between the lower clamping roller 72 and the upper clamping roller 73. The lower clamping roller 72 and the upper clamping roller 73 convey the plastic bag between the moving component 2 and the fixed component 3.

[0037] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A sealing machine characterized by: The assembly includes a support frame (1), a moving component (2), a fixing component (3), a connecting component (4), and a driving component (5). The moving component (2) includes an upper pressing member (21) and an upper cutting member (22) connected to each other. The upper cutting member (22) is connected to the connecting component (4), and the connecting component (4) is slidably connected to the support frame (1). The fixing component (3) includes a lower pressing member (31) and a lower cutting member (32) connected to each other. The lower cutting member (32) is fixedly connected to the support frame (1). The upper pressing member (21) and the lower pressing member (31) are respectively arranged to seal the plastic bag. The lower cutting member (32) and the upper cutting member (22) are respectively arranged to cut the plastic bag. The driving component (5) is arranged on the support frame (1). The power output end of the driving component (5) is connected to the connecting component (4). The driving component (5) is used to drive the connecting component (4) to move the moving component (2) back and forth towards the fixed component (3) or away from the fixed component (3).

2. The capper of claim 1, wherein: The drive assembly (5) includes a first drive member (51), a transmission shaft (52), and an eccentric wheel (53). The first drive member (51) is mounted on the support frame (1). The shaft of the transmission shaft (52) is connected to the power output end of the first drive member (51). The end of the transmission shaft (52) is connected to the eccentric wheel (53). The central axis of the transmission shaft (52) and the central axis of the eccentric wheel (53) are offset from each other. The outer wall surface of the eccentric wheel (53) abuts against the connecting assembly (4). The first drive member (51) is used to drive the transmission shaft (52) to rotate so that the eccentric wheel (53) drives the connecting assembly (4) to reciprocate.

3. The capper of claim 2, wherein: The upper cutting member (22) is connected to the connecting assembly (4) via a connecting block (6). The connecting block (6) is threaded with an adjusting screw (61). The upper pressing member (21) has a countersunk hole (211) through which the adjusting screw (61) can pass. A first flange (212) is provided in the countersunk hole (211). A second flange (62) is provided on the adjusting screw (61). A first spring (63) is provided between the first flange (212) and the second flange (62). The first spring (63) is used to push the upper pressing member (21) to abut against the connecting block (6).

4. The capper of claim 3, wherein: The connecting assembly (4) includes a slider (41) and an abutment block (42) connected to each other. The support frame (1) is provided with a slide rail (11) that slides with the slider (41). The connecting block (6) is connected to the slider (41). The abutment block (42) abuts against the outer periphery of the eccentric wheel (53).

5. The capper of claim 4, wherein: The lower pressing component (31) is provided with a heating element (311), which is used to heat the lower pressing component (31).

6. The capper of claim 1, wherein: The sealing machine also includes a conveying assembly (7) disposed on the support frame (1), the conveying assembly (7) being used to convey the plastic bag between the moving assembly (2) and the fixed assembly (3).

7. The capper of claim 6, wherein: The conveying assembly (7) includes a second drive member (71), a lower clamping roller (72) and an upper clamping roller (73). The second drive member (71) is mounted on the support frame (1). The lower clamping roller (72) is connected to the power output end of the second drive member (71). The upper clamping roller (73) is correspondingly arranged with the lower clamping roller (72) to clamp the plastic bag. The second drive member (71) is used to drive the lower clamping roller (72) to rotate to convey the plastic bag.

8. The capper of claim 7, wherein: The support frame (1) has a slot (12) and a locking block (13) is slidably connected in the slot (12). The locking block (13) is rotatably connected to the upper clamping roller (73). A limiting plate (14) is provided on the support frame (1) at the position corresponding to the slot (12). A second spring (15) is provided between the limiting plate (14) and the locking block (13). The second spring (15) is used to drive the locking block (13) to press down and drive the upper clamping roller (73) to press the plastic bag tightly onto the lower clamping roller (72).

9. The capper of claim 1, wherein: The support frame (1) is provided with a first support roller (16) and a second support roller (17) located at different heights, and the space between the first support roller (16) and the second support roller (17) is used to place a plastic bag wound on a roll.

10. The capper of claim 1, wherein: The support frame (1) is provided with a pressure roller (18) and a guide plate (19). The guide plate (19) is inclined and a gap is formed between the pressure roller (18) and the guide plate (19) to allow the plastic bag to pass through.

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