Self-sealing strip heat-sealing processing device of inspection bag

Abstract

The utility model provides a heat-sealing processing device for a self-sealing strip of an inspection bag, which comprises a frame provided with two groups of first heat-sealing components and a group of second heat-sealing components; the first heat sealing assembly comprises two symmetrically-arranged first heat sealing blocks and two partition plates arranged in a spaced mode to form a material guiding groove, the partition plates are arranged between every two first heat sealing blocks in one set, and the second heat sealing assembly comprises two symmetrically-arranged second heat sealing blocks. The first heat sealing block and the second heat sealing block are driven by a driving assembly to achieve reciprocating pressing motion. The heat sealing device is high in heat sealing precision, good in structural strength and high in production flexibility.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic inspection bag processing equipment, specifically to a heat-sealing device for self-sealing strips of inspection bags. Background Technology

[0002] Test bags, used to store test-related items and samples, are very common in the medical field. Test bags (as shown in the attached image) Figure 5 (As shown) is usually made of plastic and has a self-sealing strip 1' at the opening. By pinching the two sides of the self-sealing strip 1' with your fingers, the sealing strip will be pressed tightly together to form a sealed environment to prevent the test sample inside the bag from leaking or being contaminated by the outside.

[0003] In existing production equipment, self-sealing strips are typically manufactured by setting a set of heat-sealing blocks with fixed gaps, and a partition block is placed in the middle of the heat-sealing strip to separate the film material on both sides. After the film material and the self-sealing strip 1' are bonded together, they pass through the gap between the heat-sealing blocks and the partition block for heat sealing. However, this solution has some shortcomings. When the self-sealing strip 1' and the film material are being heat-sealed while feeding, they are prone to misalignment, resulting in poor heat sealing effect, non-straight heat sealing lines, and low structural strength of the heat seal. Utility Model Content

[0004] This invention provides a heat-sealing device for self-sealing strips of inspection bags, which can effectively solve the above-mentioned problems.

[0005] This utility model is implemented as follows:

[0006] A heat-sealing device for self-sealing strips of inspection bags, comprising:

[0007] A frame, on which two sets of first heat-sealing assemblies and one set of second heat-sealing assemblies are provided;

[0008] The first heat sealing assembly includes two symmetrically arranged first heat sealing blocks and two partitions with a guide groove formed by a gap between them. The partitions are located between the two first heat sealing blocks that form a group. The second heat sealing assembly includes two symmetrically arranged second heat sealing blocks. Both the first heat sealing blocks and the second heat sealing blocks are driven by a drive assembly to achieve reciprocating pressing motion.

[0009] As a further improvement, the drive assembly includes two rotating shafts driven by a first motor, six cams mounted on the rotating shafts, six adjustable seat plates mounted on the frame, a transmission rod mounted on each seat plate that engages with the cams, and a movable plate mounted on the end of the transmission rod away from the cams. The movable plate is connected to both the first heat-sealing block and the second heat-sealing block via a first elastic element. A second elastic element is also provided between the seat plates and the movable plate. By rotating the rotating shafts, the cams are rotated and engage with the second elastic element, causing the transmission rod to drive the heat-sealing blocks to reciprocate.

[0010] As a further improvement, the first heat-sealing assembly and the second heat-sealing assembly are adjustablely mounted on the frame, and the spacing between each heat-sealing assembly is adjustable.

[0011] As a further improvement, the frame is provided with adjustable brackets on both sides, and the brackets are provided with first adjustment slots, which are fixed to the frame by bolts passing through the first adjustment slots.

[0012] As a further improvement, the support is provided with a through hole along the feeding direction, and the partition is inserted on both sides of the through hole. The partitions are in groups of two, one of which has an end face flush with the support, and the other of which protrudes.

[0013] As a further improvement, it also includes a first support roller and a second support roller, which are respectively located at the front and rear ends of the frame and below the partition.

[0014] As a further improvement, two tension springs are also included, which are fixed on the frame. One tension spring is mounted above the support and near the front end, while the other tension spring is mounted above the partition and is located in the same vertical plane as the first support roller.

[0015] As a further improvement, the lengths D1 of the first heat-sealing block and D2 of the second heat-sealing block are greater than the width D0 of a single inspection bag, and the length D3 of the partition is greater than D1 and D2.

[0016] As a further improvement, the first elastic element is a spring.

[0017] As a further improvement, the second elastic element includes two second springs and two pull rods, the second springs being located on the upper end face of the seat plate, wherein the upper end of the second spring is connected to the pull rod, and the pull rod passes through the seat plate and is connected to the movable plate.

[0018] The beneficial effects of this utility model are:

[0019] During use, the film material is dragged one inspection bag width at a time, paused, and then heat-sealed by the heat-sealing assembly. This prevents the self-sealing strip and film material from shifting during the heat-sealing process, thus ensuring a straight heat-sealing line and improving the structural strength and overall quality of the heat seal.

[0020] The gap between the partitions in the first heat-sealing assembly forms a guide groove. When the film and self-sealing strip are fed, the guide groove can guide and limit their movement, allowing the film and self-sealing strip to move along a predetermined path during the heat-sealing process, effectively avoiding the problem of deviation during the heat-sealing process.

[0021] Beneficial effects

[0022] This utility model is a kind of Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model.

[0025] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0026] Figure 3 yes Figure 1 Enlarged view of section B in the middle.

[0027] Figure 4 This is a schematic diagram of the drive component structure provided in an embodiment of the present utility model.

[0028] Figure 5 This is a schematic diagram of the structure of the inspection bag provided in an embodiment of this utility model.

[0029] Figure label:

[0030] 1' Self-sealing strip; 1. Frame; 2. First heat-sealing assembly; 21. First heat-sealing block; 22. Partition plate; 23. Material guide chute; 3. Second heat-sealing assembly; 4. Drive assembly; 41. Rotating shaft; 42. Cam; 43. Seat plate; 44. Transmission rod; 45. Movable plate; 46. First elastic element; 47. Second elastic element; 5. Bracket; 51. First adjusting groove; 52. Perforation; 6. First support roller; 7. Tension spring; 8. Second support roller. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0032] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] Reference Figure 1-4 As shown, a heat-sealing device for self-sealing strips of inspection bags includes:

[0034] The frame 1 is provided with two sets of first heat sealing components 2 and one set of second heat sealing components 3. Preferably, the first heat sealing components 2 and the second heat sealing components 3 are installed on the frame 1 in an adjustable manner, and the spacing between each heat sealing component is adjustable to accommodate inspection bags of different sizes and specifications.

[0035] The first heat-sealing assembly 2 includes two symmetrically arranged first heat-sealing blocks 21 and a partition 22 formed by the gap between the two blocks to create a guide groove 23. The partition 22 is located between the two first heat-sealing blocks 21 as a group. The second heat-sealing assembly 3 includes two symmetrically arranged second heat-sealing blocks. The first heat-sealing blocks 21 and the second heat-sealing blocks are driven by the drive assembly 4 to achieve reciprocating pressing motion. Two sets of first heat-sealing assemblies 2 are set up to process two continuous inspection bags in parallel on both sides. The first heat-sealing assembly 2 is used to heat-press the self-sealing strip onto the film material, and the second heat-sealing assembly 3 is used to heat-press and seal to form the edge line at the bottom of the inspection bag. It can produce more inspection bags at the same time, and its efficiency is higher.

[0036] Specifically, the drive assembly 4 includes two rotating shafts 41 driven by a first motor, six cams 42 on the rotating shafts 41, six adjustable seat plates 43 on the frame 1, a transmission rod 44 on each seat plate 43 that cooperates with the cams 42, and a movable plate 45 on the end of the transmission rod 44 away from the cams 42. The movable plate 45 is connected to the first heat sealing block 21 and the second heat sealing block respectively through a first elastic element 46. Preferably, the first elastic element can be a spring, and guide posts are provided on both sides. A second elastic element 47 is also provided between the seat plate 43 and the movable plate 45. By rotating the rotating shafts 41, the cams 42 are rotated and cooperate with the second elastic element 47, so that the transmission rods 44 drive the heat sealing blocks to reciprocate. The first motor drives the two rotating shafts 41 at the same time, so that the upper and lower heat sealing blocks move synchronously. Furthermore, the pressing force can be adjusted by replacing and adjusting springs of different specifications to achieve different heat sealing effects.

[0037] Specifically, to facilitate the self-sealing strip being clamped between the upper and lower film materials, the frame 1 is equipped with adjustable brackets 5 on both sides. The brackets 5 are provided with first adjustment grooves 51. The brackets are fixed to the frame 1 by bolts passing through the first adjustment grooves 51. This is suitable for inspection bags of different specifications and is easy to adjust.

[0038] Specifically, the self-sealing strip passes through the perforation 52, and the partition 22 is inserted on both sides of the perforation 52. The partition 22 is a set of two pieces, one of which is flush with the end face of the bracket 5, and the other partition 22 is protruding. The protruding partition 22 can play a guiding and anti-overturning role to prevent the self-sealing strip from twisting and blocking the perforation 52.

[0039] Specifically, it also includes a first support roller 6 and a second support roller 8, which are respectively located at the front and rear ends of the frame 1 and below the partition plate 22, and can provide support for the film material and the self-sealing strip.

[0040] Specifically, it also includes two tension springs 7, which are fixed on the frame 1. One tension spring 7 is mounted above the support 5 and near the front end, while the other tension spring 7 is mounted above the partition 22 and is located on the same vertical plane as the first support roller 6. The upper film material passes under the tension spring 7, which acts as a clamping force to prevent the upper film material from floating up when it enters the heat sealing block.

[0041] Specifically, the length D1 of the first heat-sealing block 21 and the length D2 of the second heat-sealing block are greater than the width D0 of a single inspection bag, and the length D3 of the partition 22 is greater than D1 and D2; preferably, D1=D2 and D1≥D0. When feeding one inspection bag of width D0 at a time, the film material and the self-sealing strip can be repeatedly heat-pressed, making their connection more reliable. The contact surfaces of the first heat-sealing block 21 and the second heat-sealing block with the film are wrapped with high-temperature paper, which can prevent the heat-pressing block from directly contacting the film and causing defects on the film surface. The length of the partition 22 is greater than that of the first heat-sealing block 21 and the second heat-sealing block, which can provide more sufficient guidance and separation for the film material and the self-sealing strip, ensuring that the film material on both sides remains separated throughout the heat-sealing process, avoiding mutual interference, and further improving the heat-sealing quality.

[0042] Specifically, the second elastic element 47 includes two second springs and two pull rods. The second springs are located on the upper end face of the seat plate 43. A pull rod is connected to the upper end of the spring. The pull rod passes through the seat plate 43 and is connected to the movable plate 45. By rotating the rotating shaft 41, the cam 42 is rotated and cooperates with the elastic element, so that the transmission rod 44 drives the heat sealing block to reciprocate.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heat-sealing device for self-sealing strips of inspection bags, characterized in that, include: A frame (1) is provided with two sets of first heat sealing assemblies (2) and a set of second heat sealing assemblies (3); The first heat sealing assembly (2) includes two symmetrically arranged first heat sealing blocks (21) and a partition (22) with a guide groove (23) formed by the gap between the two blocks. The partition (22) is located between the two first heat sealing blocks (21) that form a group. The second heat sealing assembly (3) includes two symmetrically arranged second heat sealing blocks. The first heat sealing blocks (21) and the second heat sealing blocks are driven by the drive assembly (4) to achieve reciprocating pressing motion.

2. The heat-sealing device for self-sealing strips of inspection bags according to claim 1, characterized in that, The drive assembly (4) includes two rotating shafts (41) driven by a first motor, six cams (42) on the rotating shafts (41), six adjustable seat plates (43) on the frame (1), a transmission rod (44) on each seat plate (43) that cooperates with the cam (42), and a movable plate (45) on the end of the transmission rod (44) away from the cam (42). The movable plate (45) is connected to the first heat sealing block (21) and the second heat sealing block respectively through a first elastic element (46). A second elastic element (47) is also provided between the seat plate (43) and the movable plate (45). By rotating the rotating shafts (41), the cams (42) are driven to rotate and cooperate with the second elastic element (47), so that the transmission rod (44) drives the heat sealing block to reciprocate.

3. The heat-sealing device for the self-sealing strip of an inspection bag according to claim 1, characterized in that, The first heat-sealing assembly (2) and the second heat-sealing assembly (3) are adjustablely mounted on the frame (1), and the spacing between each heat-sealing assembly is adjustable.

4. The heat-sealing device for self-sealing strips of inspection bags according to claim 1, characterized in that, The frame (1) has adjustable brackets (5) on both sides. The brackets (5) have a first adjustment groove (51) and are fixed to the frame (1) by bolts passing through the first adjustment groove (51).

5. The heat-sealing device for the self-sealing strip of an inspection bag according to claim 4, characterized in that, The support (5) is provided with a through hole (52) along the feeding direction. The partition (22) is inserted on both sides of the through hole (52). The partition (22) is a set of two pieces. One end face of the partition (22) is flush with the support (5), and the other partition (22) protrudes.

6. The heat-sealing device for the self-sealing strip of an inspection bag according to claim 4, characterized in that, It also includes a first support roller (6) and a second support roller (8), which are respectively located at the front and rear ends of the frame (1) and below the partition (22).

7. The heat-sealing device for the self-sealing strip of an inspection bag according to claim 6, characterized in that, It also includes two tension springs (7), which are fixed on the frame (1). One of the tension springs (7) is mounted above the support (5) and close to the front end, while the other tension spring (7) is mounted above the partition (22) and is located in the same vertical plane as the first support roller (6).

8. The heat-sealing device for the self-sealing strip of an inspection bag according to claim 1, characterized in that, The length D1 of the first heat-sealing block (21) and the length D2 of the second heat-sealing block are greater than the width D0 of a single inspection bag, and the length D3 of the partition (22) is greater than D1 and D2.

9. A heat-sealing device for self-sealing strips of inspection bags according to claim 2, characterized in that, The first elastic element (46) is a spring.

10. The heat-sealing device for the self-sealing strip of an inspection bag according to claim 2, characterized in that, The second elastic element (47) includes two second springs and two pull rods. The second springs are located on the upper end face of the seat plate (43), wherein the upper end of the second spring is connected to the pull rod, and the pull rod passes through the seat plate (43) and is connected to the movable plate (45).

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