Directly-heated sealing machine
By using tension rods and tension clamps in a direct heat sealer to keep the bag mouth flat, and avoiding contact with the heating strips by hand through the bracket and support plate structure, the problems of uneven sealing and safety hazards are solved, and high efficiency is achieved , safe sealing operation.
Patent Information
- Application Number
- CN202421203065.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-30
AI Technical Summary
During the operation of the existing direct heat sealing machine, the bag mouth cannot be kept flat, resulting in uneven sealing quality and safety hazards of touching the heating strip by hand, especially when the sealing length is long, the front and rear sealing cannot be sealed. Even and long waiting time.
A direct heat sealing machine including a frame, a drive cylinder, an upper and lower pressing strip is designed. The flat tensioning of the bag mouth of the packaging bag is achieved through the tensioning rod and tensioning clip, and the structure of the bracket and support plate is avoided. Hands contact the heating strip to ensure stable heating of the bag mouth between the upper and lower strips.
It ensures the flatness of the bag mouth, improves the sealing quality, eliminates the safety hazards of contact between manpower and heating strips, and achieves continuous and efficient sealing operations.
Smart Images
Figure CN222311087U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing machines, in particular to a direct-heat sealing machine. Background Art
[0002] The sealing machine is a device that seals the mouth of the packaging bag by heating and softening it. During the sealing operation, the bag mouth of the packaging bag needs to be stretched manually to keep it flat, and then the bag mouth of the packaging bag is inserted between the upper pressure strip and the lower pressure strip, and the upper and lower pressure strips heat the bag mouth to achieve sealing. During the above sealing operation, improper operation when stretching the bag mouth by hand may cause the bag mouth of the packaging bag to not remain flat during sealing, thus affecting the sealing quality. In addition, when stretching the bag mouth of the packaging bag to keep it between the lower pressure strip and the upper pressure strip, there is a safety hazard of touching the heated pressure strip by hand.
[0003] However, in the above-mentioned sealing process, when the length to be sealed is long, the front sealing is completed but the back sealing is not yet completed, resulting in uneven front and back sealing and requiring a long waiting time.
[0004] In view of the above problems, the present invention makes improvements. Utility Model Content
[0005] The utility model provides a direct heat sealing machine, which solves the above problems existing in the prior art during use.
[0006] The technical solution of the utility model is achieved in this way:
[0007] A direct heat sealing machine comprises a frame, a driving cylinder, an upper pressure strip and a lower pressure strip, the lower pressure strip being fixedly arranged on the frame, the upper pressure strip being arranged above the lower pressure strip and being transmission connected to the driving cylinder, a bracket being arranged on the front side of the frame, both sides of the bracket being bent upward to form two support plates which are perpendicular to the length direction of the lower pressure strip, a sliding groove being arranged on the support plate, a tensioning rod matching the sliding groove being passed through the sliding groove, a tensioning clamp being arranged on the end of the tensioning rod located on the inner side of the support plate, and a limit block being fixedly connected to the end of the tensioning rod located on the outer side of the support plate, and a tensioning spring being arranged between the limit block and the support plate being sleeved on the tensioning rod.
[0008] Preferably, the tensioning clamp includes a fixed clamp and a movable clamp, the fixed clamp is fixedly connected to the end of the tensioning rod, the movable clamp is rotatably connected to the fixed clamp, and a plurality of corresponding first magnets and second magnets are respectively embedded on the opposite surfaces of the fixed clamp and the movable clamp.
[0009] Preferably, a first anti-slip pad layer and a second anti-slip pad layer are respectively provided on opposite surfaces of the fixed splint and the movable splint.
[0010] Preferably, a guide groove parallel to the sliding groove is formed on the support plate, and a guide rod matching the guide groove and having an end fixedly connected to the tension rod is passed through the guide groove.
[0011] Preferably, a sliding block located between the limit block and the support plate is sleeved on the tension rod, and two ends of the tension spring are respectively against the limit block and the sliding block.
[0012] Preferably, the upper press strip and the lower press strip are both direct heat press strips.
[0013] Preferably, a first protective cover located in front of the lower pressure strip is fixedly provided on the frame, and a second protective cover located in front of the upper pressure strip is fixedly provided on the upper pressure strip.
[0014] Preferably, a cylinder strip is fixedly connected to the output shaft of the driving cylinder, a connecting rod passing upward through the cylinder strip is fixedly connected to the upper strip, the connecting rod passes through the cylinder strip and is threaded with a limiting nut, and a plurality of buffer springs are arranged between the cylinder strip and the upper strip.
[0015] To sum up, the beneficial effects of the utility model are: the tensioning of the bag mouth of the packaging bag is achieved by the tensioning rod and the tensioning clamp, ensuring that the bag mouth of the packaging bag remains flat and extends between the upper pressure strip and the lower pressure strip, thereby ensuring the quality of the sealing, and in the process of the bag mouth of the packaging bag extending into the upper pressure strip and the lower pressure strip, human hands will not come into contact with the upper pressure strip or the lower pressure strip, thereby eliminating the safety hazard of human hands touching the upper pressure strip or the lower pressure strip, and ensuring the personal safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;
[0019] Figure 3 This is a schematic diagram of the structure of the tension rod in the utility model;
[0020] Figure 4 It is a structural schematic diagram of the tensioning clamp in the utility model.
[0021] In the figure: 1. frame; 2. driving cylinder; 3. upper pressure strip; 4. lower pressure strip; 5. bracket; 51. support plate; 52. sliding groove; 53. guide groove; 6. tensioning rod; 61. limit block; 62. sliding block; 7. tensioning clamp; 71. fixed splint; 72. movable splint; 73. first magnet; 74. second magnet; 75. first anti-skid pad; 76. second anti-skid pad; 8. tensioning spring; 9. guide rod; 10. first protective cover; 11. second protective cover; 12. cylinder pressure strip; 13. connecting rod; 14. limit nut; 15. buffer spring. DETAILED DESCRIPTION
[0022] The following will be combined with the attached embodiment of the utility model Figure 1-4 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] As shown in the figure, a direct heat sealing machine includes a frame 1, a driving cylinder 2, an upper pressure strip 3 and a lower pressure strip 4, the lower pressure strip 4 is fixedly arranged on the frame 1, the upper pressure strip 3 is arranged above the lower pressure strip 4 and is transmission connected to the driving cylinder 2, a bracket 5 is arranged on the front side of the frame 1, and the two sides of the bracket 5 are bent upward to form two support plates 51 perpendicular to the length direction of the lower pressure strip 4, a sliding groove 52 is opened on the support plate 51, a tensioning rod 6 matching the sliding groove 52 is passed through the sliding groove 52, a tensioning clamp 7 is arranged on the end of the tensioning rod 6 located on the inner side of the support plate 51, and the end of the tensioning rod 6 located on the outer side of the support plate 51 is fixedly connected to the limiting block 61, and the tensioning rod 6 is sleeved with a tensioning spring 8 located between the limiting block 61 and the support plate 51.
[0024] Specifically, the structure of the tensioning clamp 7 is as follows: the tensioning clamp 7 includes a fixed clamp plate 71 and a movable clamp plate 72, the fixed clamp plate 71 is fixedly connected to the end of the tensioning rod 6, and the movable clamp plate 72 is rotatably connected to the fixed clamp plate 71, and a plurality of corresponding first magnets 73 and second magnets 74 are respectively embedded on the opposite surfaces of the fixed clamp plate 71 and the movable clamp plate 72.
[0025] Specifically, the upper pressing strip 3 and the lower pressing strip 4 are both direct heating pressing strips, that is, electric heating wires are arranged inside the upper pressing strip 3 and the lower pressing strip 4. After the electric heating wires act on them, the upper pressing strip 3 and the lower pressing strip 4 can directly heat the packaging bag.
[0026] Specifically, the structure of the upper pressure strip 3 and the driving cylinder 2 being transmission-connected is as follows: a cylinder pressure strip 12 is fixedly connected to the output shaft of the driving cylinder 2, a connecting rod 13 passing upward through the cylinder pressure strip 12 is fixedly connected to the upper pressure strip 3, the connecting rod 13 passes through the cylinder pressure strip 12 and is screwed to a limiting nut 14, and a plurality of buffer springs 15 are arranged between the cylinder pressure strip 12 and the upper pressure strip 3.
[0027] In the above embodiment, the packaging bag to be sealed is placed on the bracket 5, and the two tensioning rods 6 are pulled inward so that the two tensioning clamps 7 are respectively located on both sides of the bag opening of the packaging bag and the tensioning spring 8 is compressed at the same time. Then, the movable clamp 72 is opened so that the bag opening of the packaging bag is located between the movable clamp 72 and the fixed clamp 71, and then the movable clamp 72 is closed. The movable clamp 72 cooperates with the fixed clamp 71 to clamp the side end of the bag opening of the packaging bag under the action of the first magnet 73 and the second magnet 74. At this time, the tensioning rod 6 is released, and the tensioning rod 6 slides outward under the action of the tensioning spring 8 returning to its original position. The bag opening of the packaging bag is thereby tensioned outward by the tensioning clamp 7 clamped on the side end of the bag opening so that the bag opening of the packaging bag is kept flat. Then, the tensioning rod 6 is moved to slide in the sliding groove 52 and the packaging bag is driven by the tensioning clamp 7 to move toward the gap between the upper pressure strip 3 and the lower pressure strip 4 on the bracket 5, so that the bag opening of the packaging bag is extended into and maintained between the upper pressure strip 3 and the lower pressure strip 4. Then, the cylinder 2 is driven to drive the cylinder pressure strip 12 to drive the upper pressure strip 3 to move toward the lower pressure strip 4. The heated upper pressure strip 3 and the lower pressure strip 4 cooperate to seal the bag opening of the packaging bag. When the upper and lower pressure strips 3 and 4 are in contact with each other, the upper and lower pressure strips 3 and 4 are in contact with each other, thereby ensuring the safety of the operators. When the upper and lower pressure strips 3 and 4 are both directly heated, the sealing operation can be carried out continuously after the upper and lower pressure strips 3 and 4 are heated to a suitable temperature, thereby improving the sealing efficiency. When the upper and lower pressure strips 3 and 4 cooperate to seal the bag mouth of the packaging bag, the buffer spring 15 plays a buffering role, ensuring that the upper and lower pressure strips 3 can be stably matched with the lower and lower pressure strips 4, thereby ensuring the sealing quality.
[0028] Preferably, a first anti-skid pad layer 75 and a second anti-skid pad layer 76 are respectively provided on the opposite surfaces of the fixed splint 71 and the movable splint 72. Through the action of the first anti-skid pad layer 75 and the second anti-skid pad layer 76, the stability of the tensioning clamp 7 when it is clamped on the side end of the bag opening of the packaging bag is enhanced, thereby achieving a better tensioning effect.
[0029] Preferably, a guide groove 53 parallel to the sliding groove 52 is formed on the support plate 51, and a guide rod 9 matching the guide groove 53 and having its end fixedly connected to the tensioning rod 6 is passed through the guide groove 53. When the tensioning rod 6 is moved to slide in the sliding groove 52, the guide rod 9 slides in the guide groove 53. The cooperation between the guide rod 9 and the guide groove 53 makes the sliding of the tensioning rod 6 more stable, thereby ensuring that the tensioning rod 6 can accurately drive the bag mouth of the packaging bag through the tensioning clamp 7 to extend between the upper pressure strip 3 and the lower pressure strip 4.
[0030] Preferably, a sliding block 62 is sleeved on the tensioning rod 6 and is located between the limit block 61 and the support plate 51. The two ends of the tensioning spring 8 are respectively against the limit block 61 and the sliding block 62. The sliding block 62 is against the support plate 51 under the action of the tensioning spring 8. When the tensioning rod 6 slides in the sliding groove 52, the sliding block 62 slides against the support plate 51, thereby ensuring the stability of the tensioning rod 6 when sliding, thereby ensuring that the tensioning rod 6 can accurately drive the bag mouth of the packaging bag to extend between the upper pressure strip 3 and the lower pressure strip 4 through the tensioning clamp 7.
[0031] Preferably, the frame 1 is fixedly provided with a first protective cover 10 located in front of the lower pressure strip 4, and the upper pressure strip 3 is fixedly provided with a second protective cover 11 located in front of the upper pressure strip 3. The first protective cover 10 and the second protective cover 11 respectively cover the lower pressure strip 4 and the upper pressure strip 3 therein for isolation, thereby playing a role of safety protection and preventing the packaging bag from directly contacting the upper pressure strip 3 or the lower pressure strip 4 and causing damage during the movement between the upper pressure strip 3 and the lower pressure strip 4.
[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A direct heat sealing machine, comprising a frame (1), a driving cylinder (2), an upper presser (3) and a lower presser (4), wherein the lower presser (4) is fixedly arranged on the frame (1), and the upper presser (3) is arranged above the lower presser (4) and is drivingly connected to the driving cylinder (2), characterized in that: A bracket (5) is arranged on the front side of the frame (1), and two sides of the bracket (5) are bent upward to form two support plates (51) perpendicular to the length direction of the lower pressure strip (4), and a sliding groove (52) is opened on the support plate (51), and a tensioning rod (6) matching the sliding groove (52) is inserted into the sliding groove (52), and a tensioning clamp (7) is arranged at the end of the tensioning rod (6) located on the inner side of the support plate (51), and the end of the tensioning rod (6) located on the outer side of the support plate (51) is fixedly connected to a limit block (61), and a tensioning spring (8) located between the limit block (61) and the support plate (51) is sleeved on the tensioning rod (6).
2. A direct heat sealing machine according to claim 1, characterized in that: The tensioning clamp (7) comprises a fixed clamp (71) and a movable clamp (72), wherein the fixed clamp (71) is fixedly connected to the end of the tensioning rod (6), and the movable clamp (72) is rotatably connected to the fixed clamp (71), and a plurality of first magnets (73) and second magnets (74) corresponding to each other are respectively embedded on the opposite surfaces of the fixed clamp (71) and the movable clamp (72).
3. A direct heat sealing machine according to claim 2, characterized in that: A first anti-slip cushion layer (75) and a second anti-slip cushion layer (76) are respectively provided on the opposing surfaces of the fixed clamping plate (71) and the movable clamping plate (72).
4. A direct thermal sealing machine according to claim 1, characterized in that: The support plate (51) is provided with a guide groove (53) parallel to the sliding groove (52), and a guide rod (9) matching the guide groove (53) and having an end fixedly connected to the tension rod (6) is passed through the guide groove (53).
5. The direct thermal sealing machine according to claim 1, characterized in that: The tension rod (6) is sleeved with a sliding block (62) located between the limit block (61) and the support plate (51), and two ends of the tension spring (8) respectively abut against the limit block (61) and the sliding block (62).
6. The direct thermal sealing machine according to claim 1, characterized in that: The upper press strip (3) and the lower press strip (4) are both direct heat press strips.
7. A direct heat sealing machine according to claim 6, characterized in that: The frame (1) is fixedly provided with a first protective cover (10) located in front of the lower pressure strip (4), and the upper pressure strip (3) is fixedly provided with a second protective cover (11) located in front of the upper pressure strip (3).
8. The direct heat sealing machine according to claim 6, characterized in that: A cylinder strip (12) is fixedly connected to the output shaft of the driving cylinder (2); a connecting rod (13) passing upward through the cylinder strip (12) is fixedly connected to the upper strip (3); the connecting rod (13) passes through the cylinder strip (12) and is screwed to a limiting nut (14); and a plurality of buffer springs (15) are provided between the cylinder strip (12) and the upper strip (3).