A hand-operated sealing machine

Abstract

This utility model discloses a hand-operated sealing machine, including a base shell with a heat-sealing plate at the upper end. A hand-operated shell is rotatably connected to the left end of the upper surface of the base shell via a rotating shaft. A pressure strip is provided on the lower surface of the hand-operated shell. It also includes a self-closing mechanism. The self-closing mechanism includes a rotating groove, a rotating cylinder, a sliding column, and a pressure plate. The rotating groove is located on the upper surface of the base shell, and a rotating cylinder is rotatably connected between the left and right inner walls of the rotating groove via a rotating shaft. The outer arc surface of the rotating cylinder has a transverse groove. This hand-operated sealing machine provides power for the closing mechanism through the rotation of the hand-operated shell, automatically exposing the heat-sealing plate before sealing and automatically closing it after sealing. This eliminates the need for manual closing of the heating element, ensuring operational efficiency while reducing heat loss and energy consumption, and also lowering the probability of accidental burns.

Description

Technical Field

[0001] This utility model relates to the technical field of hand-operated sealing machines, specifically a hand-operated sealing machine. Background Technology

[0002] A hand-operated sealing machine is a mechanical device that seals packaging containers through manual pressing. It is mainly used in the food, pharmaceutical, and hardware industries, and is suitable for sealing containers such as plastic bags and bottles. The manual pressing design allows the product to be placed on the machine and sealed by light pressure, eliminating the need for complex power supply operations. The existing technology, authorized by publication number CN222611572, is relevant. U proposed a hand-operated sealing machine, including a pressure rod and a base. The rear end of the pressure rod is hinged to the rear end of the base. A connector is provided on the lower side of the front end of the pressure rod. A limit seat is provided on the upper side of the front end of the base, and the limit seat is rotatably connected to the base. The limit seat is provided with a first limit port and a second limit port. During the rotation of the limit seat, there are a first working position and a second working position. When the limit seat is in the first working position, the first limit port corresponds to the connector. When the limit seat is in the second working position, the second limit port corresponds to the connector. Although it can seal the packaging bag, the heating element is always exposed during the use of the hand-operated sealing machine, resulting in serious heat loss and increased energy consumption. Even if some hand-operated sealing machines are equipped with a retracting component to retract the heating element, it requires additional operating steps, affecting operating efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a hand-operated sealing machine in which the heat sealing plate is automatically exposed before sealing and automatically retracted after sealing, eliminating the need for manual retraction of the heating components. While ensuring operational efficiency, it reduces heat loss, decreases the energy consumption of the hand-operated sealing machine, and reduces the probability of accidental burns to personnel, thus effectively solving the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a hand-operated sealing machine, comprising a base shell, a heat-sealing plate at the upper end of the base shell, a hand-operated shell rotatably connected to the left end of the upper surface of the base shell via a rotating shaft, a pressure strip at the lower surface of the hand-operated shell, and a self-closing mechanism.

[0005] The self-closing mechanism includes a rotating groove, a rotating cylinder, sliding columns, and a pressure plate. The rotating groove is located on the upper surface of the base shell. The rotating cylinder is rotatably connected between the left and right inner walls of the rotating groove via a rotating shaft. The outer arc surface of the rotating cylinder has a transverse groove. The heat-sealing plate is installed in the mounting hole on the surface of the transverse groove. The sliding columns are vertically slidably connected to the sliding holes on the upper surface of the base shell. The lower ends of the sliding columns are all connected to the rotating cylinder. The left and right ends of the hand-pressing shell are equipped with pressure plates that cooperate with the sliding columns. The rotation of the hand-pressing shell provides power for the operation of the closing component, so that the heat-sealing plate is automatically exposed before sealing and automatically closed after sealing. There is no need for personnel to manually close the heating component. While ensuring operational efficiency, it slows down heat loss, reduces the working energy consumption of the hand-pressing sealing machine, and reduces the probability of accidental burns to personnel.

[0006] Furthermore, the self-closing mechanism also includes a first gear, a rack plate, and a second gear. The first gear is respectively disposed at the second end of the rotating shaft of the rotating cylinder. The second gear is rotatably connected to the left and right ends of the base shell through a third rotating shaft. The upper end of the second gear is respectively meshed with the adjacent first gear. The elastically limited rack plate is vertically slidably connected to the lower end of the outer arc surface of the slide column. The rack plate is respectively meshed with the adjacent second gear, thus driving the rotating cylinder and the slide column.

[0007] Furthermore, the self-closing mechanism also includes a spring and a limiting ring. The limiting ring is respectively disposed on the outer arc surface of the slide column. A spring is provided between the upper surface of the limiting ring and the top wall of the base shell. The spring is movably sleeved on the outer arc surface of the slide column to provide elastic limiting for the slide column.

[0008] Furthermore, a sliding plate is slidably connected to the lower end of the outer arc surface of the sliding column. The slider on the inner arc surface of the sliding plate is vertically slidably connected to the sliding groove on the outer arc surface of the sliding column. A second spring is provided between the upper surface of the sliding plate and the lower surface of the limiting ring. The second spring is movably sleeved on the outer arc surface of the sliding column. A rack plate is provided at the front end of the sliding plate to provide elastic limiting between the sliding column and the rack plate.

[0009] Furthermore, each of the sliding columns is provided with a limiting plate at its lower end, and the sliding plate is located on the upper side of the limiting plate to limit the range of movement of the sliding plate on the outer arc surface of the sliding column.

[0010] Furthermore, the base shell is provided with limiting plates at both the left and right ends. The limiting plates are Z-shaped plates, and the lower horizontal plates of the limiting plates are respectively installed in conjunction with the adjacent sliding plates to determine the maximum downward movement position of the sliding plates.

[0011] Furthermore, heat insulation strips are provided at both ends of the inner arc surface of the rotating groove to seal the space between the rotating groove and the outer arc surface of the rotating cylinder, thereby reducing heat loss.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This hand-operated sealing machine has the following advantages:

[0013] The rotation of the hand-pressed shell provides power for the closing component, allowing the heat-sealing plate to automatically protrude before sealing and automatically close after sealing. This eliminates the need for manual closing of the heating component, ensuring operational efficiency while reducing heat loss, decreasing the energy consumption of the hand-pressed sealing machine, and lowering the probability of accidental burns. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a side view sectional diagram of the self-closing mechanism of this utility model;

[0016] Figure 3 This is a structural schematic diagram of the overall device of this utility model, viewed from the front and in cross-section.

[0017] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0018] Figure 5 This is a schematic diagram of the self-closing mechanism of this utility model.

[0019] In the diagram: 1. Base shell, 2. Heat sealing plate, 3. Hand-press shell, 4. Pressure strip, 5. Self-closing mechanism, 51. Rotary groove, 52. Rotary cylinder, 53. Sliding column, 54. Pressure plate, 55. Gear 1, 56. Rack plate, 57. Spring 1, 58. Limiting ring, 59. Gear 2, 6. Slide plate, 7. Spring 2, 8. Limiting disc, 9. Limiting plate, 10. Heat insulation strip. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 This embodiment provides a technical solution: a hand-operated sealing machine, including a base shell 1, which provides support for the sealing components. The upper end of the base shell 1 is provided with a heat-sealing plate 2, which can be an electric heating plate. The input end of the heat-sealing plate 2 is electrically connected to the output end of the controller on the right end of the base shell 1. The input end of the controller on the right end of the base shell 1 is electrically connected to an external power source. The upper left end of the base shell 1 is rotatably connected to a hand-operated shell 3 via a rotating shaft. The lower surface of the hand-operated shell 3 is provided with a pressure strip 4, which can be a heat-conducting silicone rubber strip. By pressing the hand-operated shell 3 to rotate clockwise, the pressure strip 4 is used to press the packaging bag onto the surface of the heat-sealing plate 2 for sealing. It also includes a self-closing mechanism 5.

[0022] The self-closing mechanism 5 includes a rotating groove 51, a rotating cylinder 52, sliding columns 53, and a pressure plate 54. The rotating groove 51 is located on the upper surface of the base shell 1. The rotating cylinder 52 is rotatably connected between the left and right inner walls of the rotating groove 51 via a rotating shaft 2. The outer arc surface of the rotating cylinder 52 has a transverse groove. The heat-sealing plate 2 is located in the mounting hole on the surface of the transverse groove. The sliding columns 53 are vertically slidably connected to the sliding holes on the upper surface of the base shell 1. The lower ends of the sliding columns 53 are all connected to the rotating cylinder 52. The left and right ends of the hand-pressing shell 3 are equipped with pressure plates 54 that cooperate with the sliding columns 53. In the initial state, the transverse groove of the rotating cylinder 52 is located at the lower end of the rotating cylinder 52, and the heat-sealing plate 2 is retracted into the rotating groove 51 to avoid the heat-sealing plate 2 being directly exposed, which would cause serious heat loss and reduce the probability of accidental burns to personnel. When the pressure plate 54 rotates clockwise, and the pressure plate 54 contacts the semi-circular end of the slide column 53, the elastic force of the reset limiting component is pushed down by the pressure of the pressure plate 54, causing the slide column 53 to move downward. Under the connection of the transmission component, the rotating drum 52 rotates 180 degrees synchronously. The transverse groove is located at the upper end of the rotating drum 52, exposing the heat sealing plate 2 for sealing. The self-closing mechanism 5 also includes a first gear 55, a rack plate 56, and a second gear 59. The first gear 55 is respectively set at the two ends of the rotating shaft of the rotating drum 52. The second gear 59 is rotatably connected to the left and right ends of the base shell 1 through the third rotating shaft. The upper ends of the second gear 59 are respectively meshed with the adjacent first gear 55. The elastically limiting rack plate 56 is vertically slidably connected to the lower end of the outer arc surface of the slide column 53. The sliding column 53 moves downward, causing the rack plate 56 to move downward. The rack plate 56 meshes with the gear 59, which in turn meshes with the gear 55. This causes the gear 59 to drive the gear 55 and the rotating drum 52 to rotate. The self-closing mechanism 5 also includes a spring 57 and a limiting ring 58. The limiting ring 58 is respectively located on the outer arc surface of the sliding column 53. A spring 57 is provided between the upper surface of the limiting ring 58 and the top wall of the base shell 1. The spring 57 is movably sleeved on the outer arc surface of the sliding column 53, providing elastic limiting for the sliding column 53 using the spring force. A sliding plate 6 is slidably connected to the lower end of the outer arc surface of the sliding column 53. The slider on the inner arc surface of the sliding plate 6 is vertically slidably connected to the groove on the outer arc surface of the sliding column 53. Springs 7 are provided between the upper surface of the slide plate 6 and the lower surface of the limiting ring 58. Springs 7 are movably sleeved on the outer arc surface of the slide column 53. The rack plates 56 are respectively set at the front end of the slide plate 6. When the slide column 53 begins to move downward, the limiting ring 58 pushes the springs 7 to retract. When the elastic force of the springs 7 is greater than the rotational resistance of the rotating cylinder 52, the slide plate 6 and the rack plates 56 are pushed downward under the action of the elastic force of the springs 7. When the rotating cylinder 52 rotates 180 degrees, the rack plates 56 can no longer move downward. At this time, the movement of the slide column 53 will push the springs 7 to retract, so that the slide plate 6 and the slide column 53 slide relative to each other, ensuring that the heat sealing plate 2 rotates to the designated position before the pressure strip 4 contacts the packaging bag. The lower end of the slide column 53 is provided with a limiting plate 8, and the slide plate 6 is located on the upper side of the limiting plate 8.The movement range of the slide plate 6 on the outer arc surface of the slide column 53 is limited. Limiting plates 9 are provided at both ends of the base shell 1. These limiting plates 9 are Z-shaped plates, and their lower horizontal plates cooperate with adjacent slide plates 6 to limit the maximum downward movement of the slide plate 6 and determine the maximum downward movement of the rack plate 56. Heat insulation strips 10, which can be ceramic heat insulation strips, are provided at both ends of the inner arc surface of the rotating groove 51 to seal the space between the rotating groove 51 and the outer arc surface of the rotating cylinder 52, better preventing heat dissipation. A removable sealing plate (such as a sealing plate installed with mounting bolts) is provided at the lower end of the base shell 1. The sealing plate is periodically removed to replace or maintain springs 1 57 and 2 7, ensuring their normal operation.

[0023] The working principle of the hand-operated sealing machine provided by this utility model is as follows: During use, the heat-sealing plate 2 is energized and heated by the controller on the right end of the base shell 1. At this time, the transverse groove of the rotating drum 52 is located at the lower end of the rotating drum 52, and the heat-sealing plate 2 is retracted into the rotating groove 51, preventing the heat-sealing plate 2 from being directly exposed and causing severe heat loss, while also reducing the probability of accidental burns to personnel. When sealing is required, the bag opening is placed on the upper surface of the base shell 1, and then the operator manually presses the hand-operated sealing shell 3 to rotate clockwise. When the pressure plates 54 at both ends of the hand-operated sealing shell 3 contact the upper end of the sliding column 53, under the pressure of the pressure plates 54, the elastic force of the first spring 57 is overcome, pushing the sliding column 53 downward. At the same time, the limiting ring 58 pushes the second spring 7 to retract. When the elastic force of the second spring 7 is greater than the rotational resistance of the rotating drum 52, under the action of the second spring 7, the sliding plate 6 and the rack plate 56 are pushed downward. Through the meshing connection between the rack plate 56 and the second gear 59, the second gear... The meshing connection between gear 59 and gear 55 causes gear 59 to drive gear 55 and rotating drum 52 to rotate. When the slide plate 6 contacts the lower horizontal plate of the limiting plate 9, the slide plate 6 can no longer move downwards. At this time, the rotating drum 52 rotates 180 degrees, and the transverse groove is located at the upper end of the rotating drum 52, exposing the heat sealing plate 2. As the hand-pressed shell 3 continues to push the sliding column 53 downwards, it will push the second spring 7 to contract, causing the slide plate 6 and the sliding column 53 to slide relative to each other until the pressure strip 4 seals the bag. The pressure plate is held on the surface of the heat-sealing plate 2, and the heat emitted by the heat-sealing plate 2 is used to seal the packaging bag. After sealing, the hand-pressing shell 3 is rotated in the opposite direction to reset. Under the elastic force of spring 1 57, the sliding column 53 moves upward to reset. Under the elastic force of spring 2 7, the sliding plate 6 is pushed to reset until it is in contact with the limiting plate 8. At the same time, the rotating cylinder 52 is rotated in the opposite direction to reset, and the heat-sealing plate 2 is closed again. When the rack plate 56 contacts the top wall of the base shell 1, the rotating cylinder 52 is reset to the initial state.

[0024] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A hand-operated sealing machine, comprising a base shell (1), wherein a heat-sealing plate (2) is provided at the upper end of the base shell (1), and a hand-operated shell (3) is rotatably connected to the left end of the upper surface of the base shell (1) via a rotating shaft, and a pressure strip (4) is provided on the lower surface of the hand-operated shell (3), characterized in that: It also includes self-collecting mechanisms (5); Self-closing mechanism (5): It includes a rotating groove (51), a rotating cylinder (52), a sliding column (53) and a pressure plate (54). The rotating groove (51) is set on the upper surface of the base shell (1). The rotating cylinder (52) is rotatably connected between the left and right inner walls of the rotating groove (51) through a rotating shaft. The outer arc surface of the rotating cylinder (52) is provided with a transverse groove. The heat sealing plate (2) is set in the mounting hole on the surface of the transverse groove. The sliding column (53) is vertically slidably connected to the sliding hole on the upper surface of the base shell (1). The lower end of the sliding column (53) is connected to the rotating cylinder (52) for transmission. The left and right ends of the hand-pressed shell (3) are provided with pressure plates (54) that cooperate with the sliding column (53).

2. A hand sealer according to claim 1, characterized in that: The self-closing mechanism (5) also includes gear one (55), rack plate (56) and gear two (59). Gear one (55) is respectively set at the two ends of the rotating shaft of the rotating cylinder (52). Gear two (59) is rotatably connected to the left and right ends of the base shell (1) through the three rotating shafts. The upper end of gear two (59) is meshed with the adjacent gear one (55). The elastically limited rack plate (56) is vertically slidably connected to the lower end of the outer arc surface of the sliding column (53). The rack plate (56) is meshed with the adjacent gear two (59).

3. A hand sealer according to claim 2, wherein: The self-closing mechanism (5) also includes a spring (57) and a limiting ring (58). The limiting ring (58) is respectively set on the outer arc surface of the slide column (53). The upper surface of the limiting ring (58) and the top wall of the base shell (1) are both provided with springs (57). The springs (57) are respectively movably sleeved on the outer arc surface of the slide column (53).

4. A hand sealer according to claim 3, wherein: The lower end of the outer arc surface of the sliding column (53) is slidably connected to the slide plate (6). The slider on the inner arc surface of the slide plate (6) is vertically slidably connected to the slide groove on the outer arc surface of the sliding column (53). A second spring (7) is provided between the upper surface of the slide plate (6) and the lower surface of the limiting ring (58). The second spring (7) is movably sleeved on the outer arc surface of the sliding column (53). The rack plate (56) is respectively set at the front end of the slide plate (6).

5. A hand sealer according to claim 4, characterized in that: Each of the sliding columns (53) is provided with a limiting plate (8) at its lower end, and the sliding plate (6) is located on the upper side of the limiting plate (8).

6. A hand sealer according to claim 4, characterized in that: The base shell (1) is provided with limiting plates (9) at both the left and right ends. The limiting plates (9) are all Z-shaped plates. The lower horizontal plate of the limiting plate (9) is installed in conjunction with the adjacent sliding plate (6).

7. A hand sealer according to claim 1, characterized in that: The inner arc surface of the rotating groove (51) is provided with heat insulation strips (10) at both ends.

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