Polyurethane sealing hot melt bonding tool

Abstract

The utility model discloses a polyurethane sealing hot melt bonding tool which comprises a first base. The left rear end of the first base is rotationally connected with a second base through a rotating shaft, first sealing clamps which are symmetrically distributed are installed on the upper side of the first base, second sealing clamps which are symmetrically distributed are installed on the upper side of the second base, and polyurethane sealing pieces are installed between the two first sealing clamps and between the two second sealing clamps correspondingly. The left rear end of the first base is provided with a movable vertex angle, the movable vertex angle and the second base are installed in a matched mode, and evenly-distributed threaded holes are formed in the upper side of the first base and the upper side of the second base correspondingly. And then the fixed heated polyurethane sealing element is rotated, so that the hot-melting bonding surfaces of the two polyurethane sealing elements are aligned, hot-melting bonding operation is carried out, and the dislocation phenomenon of the hot-melting bonding surfaces of the two polyurethane sealing elements is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal fusion bonding of polyurethane seals, in particular to a thermal fusion bonding tool for polyurethane seals. Background Technique

[0002] Polyurethane, whose full name is polycarbamate, is a polymer material formed by the polycondensation reaction of polyols and polyisocyanates and has excellent mechanical properties. It has extremely strong plasticity. After nearly eighty years of technological development, this material is applied in fields such as textiles, construction, aviation, ships, transportation, medicine, and electronics. When performing thermal fusion bonding of polyurethane seals on generator equipment and industrial equipment, first, the staff heats the hot melt contact parts of two sections of polyurethane seals respectively through heating equipment to make them melt. Then, the staff holds the two sections of polyurethane seals with both hands and aligns and contacts the hot melt contact parts of the two sections of polyurethane seals, thereby realizing the hot melt bonding between the two. However, when performing hot melt bonding on the two sections of polyurethane seals in this way, the hot melt bonding surfaces of the two sections of polyurethane seals are completely manually bonded and aligned by relying entirely on the staff's own experience. This method cannot ensure that the hot melt bonding surfaces of the two sections of polyurethane seals can be accurately aligned, and it is easy to cause a bonding surface misalignment phenomenon between the hot melt bonding surfaces of the two sections of polyurethane seals. For this reason, we propose a thermal fusion bonding tool for polyurethane seals. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a thermal fusion bonding tool for polyurethane seals. The device can respectively perform hot melt bonding and fixing on two sections of polyurethane seals through limiting elements, and then rotate the fixed and heated polyurethane seals, so that the hot melt bonding surfaces between the two polyurethane seals are aligned and hot melt bonding operations are performed, effectively avoiding the misalignment of the hot melt bonding surfaces, and can effectively solve the problems in the background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A thermal fusion bonding tool for polyurethane seals, including a first base;

[0005] The first base: The left rear end of it is rotationally connected to a second base through a rotating shaft. Symmetrically distributed first seal clamps are installed on the upper side of the first base, and symmetrically distributed second seal clamps are installed on the upper side of the second base. Polyurethane seals are installed between the two first seal clamps and between the two second seal clamps. The device can respectively perform hot melt bonding and fixing on two sections of polyurethane seals through limiting elements, and then rotate the fixed and heated polyurethane seals, so that the hot melt bonding surfaces between the two polyurethane seals are aligned and hot melt bonding operations are performed, effectively avoiding the misalignment of the hot melt bonding surfaces.

[0006] Further, a moving apex angle is provided at the left rear end of the first base. The moving apex angle is fitted and installed with the second base. By means of the moving apex angle, the reverse reset stroke of the second base around the axis of the rotating shaft is restricted, so that when the second base rotates around the axis of the rotating shaft until it cannot move, the thermally fused bonding parts of the two polyurethane seals are just horizontally aligned and in contact.

[0007] Further, uniformly distributed threaded holes are provided on the upper sides of the first base and the second base, and uniformly distributed through holes are provided on the lower sides of the first sealing clamp and the second sealing clamp. Hexagon socket head cap screws are threadedly connected inside the threaded holes, and the upper ends of the hexagon socket head cap screws all pass through the adjacent through holes to fix the polyurethane seals installed inside the sealing clamps by thermal fusion.

[0008] Further, epoxy phenolic resin coatings are provided on the outer sides of the hexagon socket head cap screws. By means of the epoxy phenolic resin coatings, the corrosion resistance of the hexagon socket head cap screws is improved, and further, the phenomenon of threaded connection corrosion between them and the threaded holes is avoided.

[0009] Further, an extension gap is reserved between the first base and the second base. By means of the extension gap, the thermally fused bonding parts of the two polyurethane seals are not located inside the adjacent sealing clamps, so as to avoid interference with the thermal fusion bonding of the subsequent polyurethane seals by the sealing clamps.

[0010] Further, the first base, the second base, the first sealing clamp and the second sealing clamp are all made of ductile iron. By means of the ductile iron, the strength and wear resistance of the first base, the second base, the first sealing clamp and the second sealing clamp themselves are improved, and further, the service life of the polyurethane seal thermal fusion bonding tool itself is improved.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: This polyurethane seal thermal fusion bonding tool has the following advantages:

[0012] When two polyurethane seals are thermally fusion bonded, through the cooperation among the base, the sealing clamp and the hexagon socket head cap screw, the two sections of polyurethane seals are respectively fixed by thermal fusion bonding. Subsequently, by rotating the fixed heated polyurethane seals, the thermally fused bonding surfaces between the two polyurethane seals are aligned and the thermal fusion bonding operation is carried out. By guiding and aligning the bonding surfaces during the thermal fusion bonding of the two polyurethane seals, the phenomenon of misalignment of the thermally fused bonding surfaces is effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic diagram of the split structure of the present utility model;

[0015] Figure 3This is a schematic diagram of the base structure of the present utility model.

[0016] In the figure: 1 Base one, 2 Base two, 3 Rotating shaft, 4 Movable apex angle, 5 Sealing fixture one, 6 Sealing fixture two, 7 Threaded hole, 8 Allen bolt, 9 Polyurethane seal. Specific implementation manners

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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 in 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.

[0018] Please refer to Figures 1-3 , this embodiment provides a technical solution: a polyurethane sealing and hot melting bonding tool, including base one 1;

[0019] Base 1: Its left rear end is rotatably connected to base 2 via a rotating shaft 3, a symmetrically distributed sealing fixture 1 5 is installed on the upper side of base 1, a symmetrically distributed sealing fixture 2 6 is installed on the upper side of base 2, a polyurethane seal 9 is installed between the two sealing fixtures 1 5 and between the two sealing fixtures 2 6, a movable vertex 4 is provided at the left rear end of base 1, and the movable vertex 4 is installed in conjunction with base 2 2, evenly distributed threaded holes 7 are opened on the upper sides of base 1 and base 2 2, evenly distributed through holes are opened on the lower sides of sealing fixture 1 5 and sealing fixture 2 6, the inside of the threaded hole 7 is threadedly connected with a hexagon socket bolt 8, and the upper end of the hexagon socket bolt 8 is provided with a threaded hole 7. The ends of the two polyurethane seals 9 pass through the adjacent through holes, and an extension gap is reserved between the base 1 and the base 2. When the two polyurethane seals 9 are hot-melt bonded, the two polyurethane seals 9 are firstly contacted with the hot-melt surfaces, and they are placed between the clamping surfaces of the two sealing clamps 1 5 and the clamping surfaces of the two sealing clamps 2 6 while the hot-melt surfaces are in contact, and then the hexagon socket bolt 8 is rotated to make it threadedly connected with the corresponding threaded hole 7, thereby driving the corresponding sealing clamp 1 5 or sealing clamp 2 6 to move vertically downward, and then cooperate with the adjacent base 1 or base 2, so as to clamp and fix the corresponding polyurethane seal 9 by hot-melt bonding, and then by toggling the base 2 2 Make it rotate forward around the rotating shaft 3, so that the sealing fixture 2 6 drives the corresponding polyurethane seal 9 to rotate around the axis of the rotating shaft 3, thereby separating the hot-melt bonding surfaces of the two polyurethane seals 9, and then heating the corresponding hot-melt bonding parts of the two polyurethane seals 9 through an external heating plate. After the polyurethane seals 9 are heated, the external heating plate is removed, and then the base 2 2 is reversed and reset around the axis of the rotating shaft 3 by the same principle, so that the hot-melt joints of the two polyurethane seals 9 can be accurately aligned and bonded, and the hot-melt bonding parts of the two polyurethane seals 9 are not located in adjacent sealing fixtures by extending the gap. To avoid interference of the sealing fixture with the subsequent hot-melt bonding of the polyurethane seal 9, the top angle 4 is moved to limit the movement of the base 2 2 around the axis of the rotating shaft 3. When the base 2 is reversed around the axis of the rotating shaft 3 until it cannot move, the hot-melt bonding parts of the two polyurethane seals 9 are just aligned and contacted horizontally. The device can hot-melt-bond and fix the two sections of the polyurethane seals 9 respectively through the limiting element, and then the fixed heated polyurethane seal 9 is rotated, so that the hot-melt bonding surfaces between the two polyurethane seals 9 are aligned and hot-melt bonding operations are performed, effectively avoiding the misalignment of the hot-melt bonding surfaces;

[0020] Among them, epoxy phenolic resin coatings are provided on the outer sides of the socket head cap screws 8. The first base 1, the second base 2, the first sealing fixture 5, and the second sealing fixture 6 are all ductile iron. The epoxy phenolic resin coatings are used to improve the corrosion resistance of the socket head cap screws 8, thereby avoiding the phenomenon of rust in the threaded connection between them and the threaded holes 7. The ductile iron is used to improve the strength and wear resistance of the first base 1, the second base 2, the first sealing fixture 5, and the second sealing fixture 6, thereby increasing the service life of the polyurethane sealing hot melt bonding tool itself.

[0021] The working principle of a polyurethane sealing hot melt bonding tool provided by the present utility model is as follows: When two polyurethane seals 9 are hot melt bonded, first, the hot melt surfaces of the two polyurethane seals 9 are brought into contact, and while they are in contact on the hot melt surface, they are respectively placed between the clamping surfaces of the two first sealing fixtures 5 and between the clamping surfaces of the two second sealing fixtures 6. Subsequently, the socket head cap screws 8 are rotated so that they are threadedly connected to the corresponding threaded holes 7, thereby driving the corresponding first sealing fixture 5 or second sealing fixture 6 to move vertically downward, and then cooperating with the adjacent first base 1 or second base 2 to clamp and fix the hot melt bonding of the corresponding polyurethane seal 9. Subsequently, the second base 2 is toggled to rotate forward around the rotating shaft 3, so that the second sealing fixture 6 drives the corresponding polyurethane seal 9 to rotate around the axis of the rotating shaft 3, thereby separating the hot melt bonding surfaces of the two polyurethane seals 9. Subsequently, the corresponding hot melt bonding parts of the two polyurethane seals 9 are heated by an external heating plate. After the polyurethane seals 9 are heated, the external heating plate is removed. Subsequently, the second base 2 is rotated reversely around the axis of the rotating shaft 3 to reset by the same principle, so that the hot melt joints of the two polyurethane seals 9 can be accurately aligned and bonded in contact. Through the extension gap, the hot melt bonding parts of the two polyurethane seals 9 are not located within the adjacent sealing fixtures, avoiding interference with the subsequent hot melt bonding of the polyurethane seals 9 by the sealing fixtures. By moving the apex angle 4, the reverse rotation reset stroke of the second base 2 around the axis of the rotating shaft 3 is restricted. When the second base 2 rotates reversely around the axis of the rotating shaft 3 until it cannot move, at this time, the hot melt bonding parts of the two polyurethane seals 9 are just horizontally aligned and in contact. The epoxy phenolic resin coatings are used to improve the corrosion resistance of the socket head cap screws 8, thereby avoiding the phenomenon of rust in the threaded connection between them and the threaded holes 7. The ductile iron is used to improve the strength and wear resistance of the first base 1, the second base 2, the first sealing fixture 5, and the second sealing fixture 6, thereby increasing the service life of the polyurethane sealing hot melt bonding tool itself.

[0022] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included within the patent protection scope of the present utility model.

Claims

1. A polyurethane sealing hot melt bonding tool, characterized in that: Includes base one (1); Base one (1): its left rear end is rotatably connected to base two (2) via a rotating shaft (3); symmetrically distributed sealing fixtures one (5) are installed on the upper side of base one (1); symmetrically distributed sealing fixtures two (6) are installed on the upper side of base two (2); polyurethane sealing members (9) are installed between the two sealing fixtures one (5) and between the two sealing fixtures two (6); The upper sides of the base 1 (1) and the base 2 (2) are both provided with evenly distributed threaded holes (7), and the lower sides of the sealing clamp 1 (5) and the sealing clamp 2 (6) are both provided with evenly distributed through holes, and the interiors of the threaded holes (7) are both threadedly connected with hexagon socket bolts (8), and the upper ends of the hexagon socket bolts (8) pass through adjacent through holes.

2. A polyurethane sealing hot melt adhesive tool according to claim 1, characterized in that: The left rear end of the base one (1) is provided with a movable top corner (4), and the movable top corner (4) is installed in coordination with the base two (2).

3. The polyurethane sealing hot melt adhesive tool according to claim 1, characterized in that: The outer sides of the hexagon socket bolts (8) are provided with an epoxy phenolic resin coating.

4. The polyurethane sealing hot melt adhesive tool according to claim 1, characterized in that: An extension gap is reserved between the base one (1) and the base two (2).

5. The polyurethane sealing hot melt adhesive tool according to claim 1, characterized in that: The base one (1), the base two (2), the sealing fixture one (5) and the sealing fixture two (6) are all made of ductile iron.

Images