Medical polymer fabric heat sealing device

Abstract

The utility model relates to the field of polymer fabrics, in particular to a medical polymer fabric heat sealing device, and aims to solve the problems that in the prior art, when a fabric is clamped, a gap is too small, feeding is not easy, the gap is too large after abrasion, and the clamping effect is lost. A heat sealing roller II and a traction roller II are arranged on one side of a heat sealing roller I and one side of a traction roller I in parallel in the horizontal direction; the first heat sealing roller and the second heat sealing roller as well as the first traction roller and the second traction roller can be in contact, the joints are located on the same vertical plane, the shaft end of the second heat sealing roller and the shaft end of the second traction roller are rotationally connected into the first sliding frame and the second sliding frame respectively, the first sliding frame and the second sliding frame are slidably connected into the sliding groove, and the sliding groove is formed in the side wall of the heat sealing shell; the sliding frame I and the sliding frame II are controlled by a hydraulic mechanism to slide, the hydraulic mechanism is used for controlling the separation of the heat sealing roller and the traction roller during clamping, the fabric adhered with the adhesive tape enters the space between the two roller sets, the two roller sets are closed during heat sealing, and even if the heat sealing roller and the traction roller are abraded, the hydraulic mechanism can be used for adjustment, and the clamping effect cannot be lost.

Description

Technical Field

[0001] The utility model relates to the field of polymer fabrics, in particular to a heat-sealing device for medical polymer fabrics. Background Art

[0002] The heat-sealing technology of medical polymer fabrics is an important processing technology, which involves the process of melting and bonding two or more layers of polymer materials by heating. This technology is widely used in the medical field, especially in the manufacture of medical protective clothing, surgical gowns, sheets, dressings and other products;

[0003] The gap between the heat-sealing roller and the traction roller in the prior art is not adjustable, and there are disadvantages that the gap is too small to feed the fabric easily when clamping the fabric, and the gap is too large to lose the clamping function after wear. The utility model solves the above problems. Summary of the Utility Model

[0004] The utility model aims to solve the technical problem that the gap between the heat-sealing roller and the traction roller in the prior art is not adjustable, and there are disadvantages that the gap is too small to feed the fabric easily when clamping the fabric, and the gap is too large to lose the clamping function after wear, and further provides a heat-sealing device for medical polymer fabrics.

[0005] A heat-sealing device for medical polymer fabrics includes: a heat-sealing outer shell, the shaft ends of a first heat-sealing roller and a first traction roller are rotatably connected in the heat-sealing outer shell from top to bottom, a heating element is arranged in the first heat-sealing roller, the shaft ends of the first heat-sealing roller and the first traction roller are connected with power, a second heat-sealing roller and a second traction roller are arranged horizontally and in parallel on one side of the first heat-sealing roller and the first traction roller, the first heat-sealing roller and the second heat-sealing roller, and the first traction roller and the second traction roller can be in contact with each other and the joint is located in the same vertical plane, the shaft ends of the second heat-sealing roller and the second traction roller are respectively rotatably connected in a first sliding frame and a second sliding frame, the first sliding frame and the second sliding frame are slidably connected in a chute, the chute is arranged on the side wall of the heat-sealing outer shell, and the first sliding frame and the second sliding frame are controlled to slide by a hydraulic mechanism.

[0006] Further, the shaft ends of the first heat-sealing roller and the first traction roller are connected by a belt drive, and the diameter of the pulley at the shaft end of the first heat-sealing roller is larger than the diameter of the pulley at the shaft end of the first traction roller.

[0007] Further, the hydraulic mechanism includes a hydraulic cylinder, the fixed end of the hydraulic cylinder is connected to the inner wall of the heat-sealing outer shell, the telescopic end of the hydraulic cylinder is connected to the outer surface of a push-pull plate, the inner surface of the push-pull plate is connected with two groups of upper and lower sliding rods, the two groups of upper and lower sliding rods are respectively slidably connected in the first sliding frame and the second sliding frame, the sliding rods on both sides of the first sliding frame and the second sliding frame are respectively connected with spring pieces and pull-back pieces, springs are sleeved on the sliding rods, and the two ends of the springs are respectively in contact with the sliding frames and the spring pieces, the springs are in a compressed state, and when the first heat-sealing roller and the second heat-sealing roller are in contact, the pull-back pieces are not in contact with the sliding frames.

[0008] Advantages of the Utility Model

[0009] 1. When clamping, the hydraulic mechanism is used to control the separation of the heat-sealing roller and the traction roller. The fabric with the adhesive strip enters between the two roller groups. When heat-sealing, the two roller groups are closed. Even if the heat-sealing roller and the traction roller are worn, they can be adjusted by the hydraulic mechanism without losing the clamping function.

[0010] 2. When the two roller groups are worn, the two sliding frames, namely sliding frame one and sliding frame two, are driven by two groups of springs to displace respectively, so that the two rollers remain in contact and pressed. The separation of the two roller groups can be controlled simultaneously by a group of hydraulic cylinders without separate control, which greatly saves costs. Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of the present utility model;

[0012] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0013] In the figure: heat-sealing housing 1; first heat-sealing roller 2; first traction roller 3; second heat-sealing roller 4; second traction roller 5; sliding frame one 6; sliding frame two 7; chute 8; hydraulic mechanism 9; hydraulic cylinder 91; push-pull plate 92; sliding rod 93; spring piece 94; pull-back piece 95; spring 96; belt drive 10. Detailed Embodiment

[0014] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0015] In the present device, the so-called rotational connection means that the bearing is baked and installed on the shaft, and a spring retaining ring groove is provided on the shaft or the shaft hole. The axial fixation of the bearing is achieved by clamping the elastic retaining ring in the retaining ring groove to realize rotation; the so-called hinge connection means a connection method that is movable on connecting parts such as hinges, pin shafts and short shafts.

[0016] The present utility model will be described in detail below in conjunction with the drawings.

[0017] Embodiment 1:

[0018] Next, in combination with the attached Figure 1-2This embodiment describes a heat-sealing device for medical polymer fabrics, which includes: a heat-sealing outer shell 1. The shaft ends of a first heat-sealing roller 2 and a first traction roller 3 are rotatably connected from top to bottom inside the heat-sealing outer shell 1. A heating element is provided inside the first heat-sealing roller 2. The shaft ends of the first heat-sealing roller 2 and the first traction roller 3 are connected to power. A second heat-sealing roller 4 and a second traction roller 5 are arranged horizontally and in parallel on one side of the first heat-sealing roller 2 and the first traction roller 3. The first heat-sealing roller 2 and the second heat-sealing roller 4, and the first traction roller 3 and the second traction roller 5 can be in contact, and the joint is located on the same vertical plane. The shaft ends of the second heat-sealing roller 4 and the second traction roller 5 are respectively rotatably connected inside a first sliding frame 6 and a second sliding frame 7. The first sliding frame 6 and the second sliding frame 7 are slidably connected inside a chute 8. The chute 8 is opened on the side wall of the heat-sealing outer shell 1. The first sliding frame 6 and the second sliding frame 7 are controlled to slide by a hydraulic mechanism 9.

[0019] During use, the first sliding frame 6 and the second sliding frame 7 are controlled by the hydraulic mechanism 9 to slide along the chute 8. The first sliding frame 6 and the second sliding frame 7 drive the second heat-sealing roller 4, the second traction roller 5 to separate from the first heat-sealing roller 2 and the first traction roller 3. The fabric with the adhesive strip is vertically conveyed between the two roller groups. The two roller groups are controlled by the hydraulic mechanism 9 to reset. At this time, the first heat-sealing roller 2 and the second heat-sealing roller 4, and the first traction roller 3 and the second traction roller 5 are in contact, and the joint is located on the same vertical plane. The power of the shaft ends of the first heat-sealing roller 2 and the first traction roller 3, and the heating element of the first heat-sealing roller 2 are turned on. Driven by the frictional force, the second heat-sealing roller 4 and the second traction roller 5 rotate cooperatively to convey the fabric downward. While conveying, the first heat-sealing roller 2 generates heat to complete heat-sealing. The surface of the polymer fabric is smooth. In traditional equipment, the heat-sealing roller undertakes both the tasks of traction and heat-sealing at the same time, and it is difficult to be applied to polymer fabrics. The surface of the traction roller is coated with a rubber layer, and the additional traction roller ensures the stable conveyance of the fabric without slipping.

[0020] The shaft ends of the first heat-sealing roller 2 and the first traction roller 3 are connected by a belt drive 10. The diameter of the belt pulley at the shaft end of the first heat-sealing roller 2 is larger than the diameter of the belt pulley at the shaft end of the first traction roller 3.

[0021] The rotation speed of the first traction roller 3 is faster than that of the first heat-sealing roller 2, ensuring that the fabric remains straight and there are no wrinkles.

[0022] The hydraulic mechanism 9 includes a hydraulic cylinder 91. The fixed end of the hydraulic cylinder 91 is connected to the inner wall of the heat-sealing outer shell 1. The telescopic end of the hydraulic cylinder 91 is connected to the outer surface of a push-pull plate 92. The inner surface of the push-pull plate 92 is connected with two groups of upper and lower sliding rods 93. The two groups of upper and lower sliding rods 93 are respectively slidably connected inside the first sliding frame 6 and the second sliding frame 7. The sliding rods 93 on both sides of the first sliding frame 6 and the second sliding frame 7 are respectively connected with a spring piece 94 and a pulling-back piece 95. A spring 96 is sleeved on the sliding rod 93. The two ends of the spring 96 are respectively in contact with the sliding frame and the spring piece 94. The spring 96 is in a compressed state. When the first heat-sealing roller 2 and the second heat-sealing roller 4 are in contact, the pulling-back piece 95 is not in contact with the sliding frame.

[0023] When the two-roller group is worn, under the action of the compression state springs 96 of the two groups, the first carriage 6 and the second carriage 7 slide along the slide rod 93, and the carriage drives the second heat-sealing roller 4 and the second traction roller 5 to displace, so that the two-roller group always maintains contact and compression. When controlling the separation of the two-roller group, the control hydraulic cylinder 91 contracts, and the hydraulic cylinder 91 drives the slide rod 93 to slide through the push-pull plate 92. When the pull-back piece 95 contacts the carriage, the pull-back piece 95 drives the first carriage 6 and the second carriage 7 to slide simultaneously. The separation of the two-roller group can be controlled simultaneously through a group of hydraulic cylinders 91 without separate control, greatly saving costs.

[0024] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical polymer fabric heat sealing device, characterized in that: include: A heat sealing shell (1) is provided, wherein the shaft ends of a heat sealing roller (2) and a traction roller (3) are rotatably connected from top to bottom in the heat sealing shell (1), a heating element is provided in the heat sealing roller (2), the shaft ends of the heat sealing roller (2) and the traction roller (3) are connected to a power source, a heat sealing roller (4) and a traction roller (5) are provided in parallel in a horizontal direction on one side of the heat sealing roller (2) and the traction roller (3), and the heat sealing roller (2) and the heat sealing roller (4) and the traction roller (5) are connected to each other. Roller 1 (3) and traction roller 2 (5) can contact each other and the joint is located on the same vertical plane. The shaft ends of heat-sealing roller 2 (4) and traction roller 2 (5) are rotatably connected to slide 1 (6) and slide 2 (7) respectively. Slide 1 (6) and slide 2 (7) are slidably connected to a slide groove (8). The slide groove (8) is provided on the side wall of the heat-sealing shell (1). Slide 1 (6) and slide 2 (7) are controlled to slide by a hydraulic mechanism (9).

2. A medical polymer fabric heat sealing device according to claim 1, characterized in that: The shaft ends of the heat sealing roller (2) and the traction roller (3) are connected via a belt drive (10), and the diameter of the belt pulley at the shaft end of the heat sealing roller (2) is greater than the diameter of the belt pulley at the shaft end of the traction roller (3).

3. The medical polymer fabric heat sealing device according to claim 1, characterized in that: The hydraulic mechanism (9) comprises a hydraulic cylinder (91), the fixed end of the hydraulic cylinder (91) is connected to the inner wall of the heat sealing shell (1), the telescopic end of the hydraulic cylinder (91) is connected to the outer surface of the push-pull plate (92), the inner surface of the push-pull plate (92) is connected with two sets of upper and lower slide bars (93), the upper and lower slide bars (93) are respectively slidably connected to the slide frame 1 (6) and the slide frame 2 (7), the slide bars (93) on both sides of the slide frame 1 (6) and the slide frame 2 (7) are respectively connected with a spring sheet (94) and a pull-back sheet (95), a spring (96) is sleeved on the slide bar (93), the two ends of the spring (96) are respectively in contact with the slide frame and the spring sheet (94), the spring (96) is in a compressed state, and when the heat sealing roller 1 (2) is in contact with the heat sealing roller 2 (4), the pull-back sheet (95) is not in contact with the slide frame.

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