PUR glue and cleaning agent glue spraying switching mechanism
By designing a PUR adhesive and cleaning agent spraying and conversion mechanism, the problem of PUR adhesive waste caused by adhesive circuit blockage was solved, achieving efficient cleaning and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 马国明
- Filing Date
- 2025-03-04
- Publication Date
- 2026-05-12
AI Technical Summary
In existing perfect binding machines, the glue path of PUR hot melt adhesive is prone to clogging. The cleaning method leads to glue waste, increases the cost of perfect binding books, and the existing cleaning method is not efficient enough.
The design incorporates a PUR adhesive and cleaning agent spraying conversion mechanism. The cleaning agent and PUR adhesive are introduced through the liquid inlet pipe and adhesive inlet pipe, respectively, and the conversion is achieved using a sealing component. This avoids wasting PUR adhesive during cleaning and improves utilization.
This allows for the direct introduction of cleaning agent during cleaning, avoiding waste of PUR glue, reducing book binding costs, and improving the utilization rate of PUR glue.
Smart Images
Figure CN224221817U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of perfect binding machine technology, and in particular to a PUR glue and cleaning agent spraying conversion mechanism. Background Technology
[0002] Perfect binding machines commonly use EVA hot melt adhesive and PUR hot melt adhesive. EVA hot melt adhesive is a common hot melt adhesive with low cost. After being heated and melted, the adhesive completely cures after 24 hours and can be reheated and melted. EVA hot melt adhesive is generally used in open-type binding boxes, so the bound book cannot be opened 180°. PUR hot melt adhesive is more expensive, but it has excellent bonding strength and excellent temperature resistance, chemical resistance, corrosion resistance, and aging resistance. The adhesive layer of perfect-bound books is thin and flexible, allowing the bound book to be flattened 180°. This adhesive has seen rapid development and application in recent years. However, the glue path of the perfect binding machine is prone to clogging. If it is not cleaned in time, it will affect the binding effect of the book. Existing cleaning methods easily lead to glue waste when cleaning the glue path, resulting in high binding costs and failing to meet actual needs. Summary of the Invention
[0003] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a PUR adhesive and cleaning agent spraying conversion mechanism.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] Design a PUR adhesive and cleaning agent spray conversion mechanism, including a spray base and a nozzle located on the top of the spray base, and further including a liquid inlet and an adhesive inlet respectively disposed at the bottom of the spray base and communicating with the nozzle, a liquid inlet pipe located below the liquid inlet, an adhesive inlet pipe located below the adhesive inlet, a mounting base connected to the spray base for mounting the liquid inlet pipe and the adhesive inlet pipe, a liquid inlet channel penetrating the mounting base for communicating the liquid inlet and the liquid inlet pipe, an adhesive inlet channel for communicating the adhesive inlet and the adhesive inlet pipe, and a sealing component for sealing the liquid inlet channel or the adhesive inlet channel.
[0006] Furthermore, the sealing assembly includes a rotating rod rotatably and sealingly connected to the mounting base, a first through hole and a second through hole penetrating the rotating rod, the rotating rod rotating to drive the first through hole and the liquid inlet channel to be coaxial or the second through hole and the adhesive inlet channel to be coaxial.
[0007] Furthermore, the rotating rod is provided with a first sealing ring.
[0008] Furthermore, the sealing assembly includes a slide rod that is slidably and sealingly connected to the mounting base, and a third through hole penetrating the slide rod. The slide rod moves to drive the third through hole and the liquid inlet channel to be coaxial or the third through hole and the adhesive inlet channel to be coaxial.
[0009] Furthermore, the sealing assembly also includes a guide portion for guiding the movement of the slide bar, the guide portion including a transverse block arranged along the length direction of the slide bar and a guide groove formed in the mounting base and cooperating with the transverse block.
[0010] Furthermore, a second sealing ring is provided on the slide rod.
[0011] The present invention provides a PUR adhesive and cleaning agent spraying conversion mechanism, which has the following advantages:
[0012] This invention, by setting up a liquid inlet pipe and a glue inlet pipe, allows cleaning agent and PUR glue to be introduced into the glue spraying unit through the liquid inlet channel and the glue inlet channel respectively. By using a sealing component to switch the cleaning agent and PUR glue into the glue spraying unit, when cleaning is required after glue spraying, the cleaning agent in the liquid inlet pipe can be directly introduced into the glue spraying unit without cleaning the PUR glue in the glue inlet pipe, thus avoiding waste of PUR glue, improving the utilization rate of PUR glue, and reducing the binding cost of books. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a cross-sectional view of the present invention;
[0015] Figure 3 This is a schematic diagram of a sealing component according to an embodiment of the present invention;
[0016] Figure 4 This is a schematic diagram of the sealing component according to Embodiment 2 of this utility model;
[0017] Figure 5 This is a schematic diagram of another sealing component in Embodiment 2 of this utility model; Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Example 1, refer to Figure 1-3A PUR adhesive and cleaning agent spraying conversion mechanism includes a spraying base 1 and a nozzle 101 located on top of the spraying base 1. It also includes a liquid inlet 102 and an adhesive inlet 103 respectively disposed at the bottom of the spraying base 1 and communicating with the nozzle 101, a liquid inlet pipe 2 located below the liquid inlet 102, an adhesive inlet pipe 3 located below the adhesive inlet 103, a mounting base 4 connected to the spraying base 1 for mounting the liquid inlet pipe 2 and the adhesive inlet pipe 3, a liquid inlet channel 401 penetrating the mounting base 4 for communicating the liquid inlet 102 and the liquid inlet pipe 2, an adhesive inlet channel 402 for communicating the adhesive inlet 103 and the adhesive inlet pipe 3, and a sealing component 5 for sealing the liquid inlet channel 401 or the adhesive inlet channel 402.
[0020] This invention, by setting up an inlet pipe 2 and an adhesive inlet pipe 3, allows cleaning agent and PUR adhesive to be introduced into the glue spraying base 1 through the inlet channel 401 and the adhesive inlet channel 402, respectively. The sealing component 5 is used to switch the cleaning agent and PUR adhesive into the glue spraying base 1. When cleaning is required after glue spraying, the cleaning agent in the inlet pipe 2 can be directly introduced into the glue spraying base 1 without cleaning the PUR adhesive in the adhesive inlet pipe 3. This avoids waste of PUR adhesive, improves the utilization rate of PUR adhesive, and reduces the binding cost of books.
[0021] In an optional embodiment of this utility model, the sealing assembly 5 includes a rotating rod 501 rotatably and sealingly connected to the mounting base 4, a first through hole 502 and a second through hole 503 penetrating the rotating rod 501. The rotating rod 501 rotates to drive the first through hole 502 and the liquid inlet channel 401 to be coaxial, or the second through hole 503 and the adhesive inlet channel 402 to be coaxial. Preferably, in this embodiment, the axial centerlines of the first through hole 502 and the second through hole 503 are perpendicular. The rotating rod 501 can be driven to rotate by a motor. Rotation of rod 1 aligns the first through hole 502 with the liquid inlet channel 401 and makes them coaxial, allowing the cleaning agent to be introduced into the spray gun 1. At the same time, the part of the rotating rod 501 corresponding to the second through hole 503 blocks the glue inlet channel 402. Alternatively, the second through hole 503 aligns with the glue inlet channel 402 and is coaxial with it, allowing PUR glue to be introduced into the spray gun 1. At the same time, the part of the rotating rod 501 corresponding to the first through hole 502 blocks the liquid inlet channel 401, thereby achieving the conversion between the cleaning agent and PUR glue entering the spray gun 1.
[0022] In an optional embodiment of this utility model, a first sealing ring 504 is provided on the rotating rod 501. Preferably, in this embodiment, the number of first sealing rings 504 is set to three, distributed on both sides of the first through hole 502 and the second through hole 503. By providing the first sealing ring 504, the cleaning agent in the liquid inlet channel 401 is prevented from entering the glue inlet channel 402 or the PUR glue in the glue inlet channel 402 is prevented from entering the liquid inlet channel 401, thereby improving the performance of the glue binding machine.
[0023] Example 2, refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 A PUR adhesive and cleaning agent spraying conversion mechanism includes a spraying base 1 and a nozzle 101 located on top of the spraying base 1. It also includes a liquid inlet 102 and an adhesive inlet 103 respectively disposed at the bottom of the spraying base 1 and communicating with the nozzle 101, a liquid inlet pipe 2 located below the liquid inlet 102, an adhesive inlet pipe 3 located below the adhesive inlet 103, a mounting base 4 connected to the spraying base 1 for mounting the liquid inlet pipe 2 and the adhesive inlet pipe 3, a liquid inlet channel 401 penetrating the mounting base 4 for communicating the liquid inlet 102 and the liquid inlet pipe 2, an adhesive inlet channel 402 for communicating the adhesive inlet 103 and the adhesive inlet pipe 3, and a sealing component 5 for sealing the liquid inlet channel 401 or the adhesive inlet channel 402.
[0024] This invention, by setting up an inlet pipe 2 and an adhesive inlet pipe 3, allows cleaning agent and PUR adhesive to be introduced into the glue spraying base 1 through the inlet channel 401 and the adhesive inlet channel 402, respectively. The sealing component 5 is used to switch the cleaning agent and PUR adhesive into the glue spraying base 1. When cleaning is required after glue spraying, the cleaning agent in the inlet pipe 2 can be directly introduced into the glue spraying base 1 without cleaning the PUR adhesive in the adhesive inlet pipe 3. This avoids waste of PUR adhesive, improves the utilization rate of PUR adhesive, and reduces the binding cost of books.
[0025] In an optional embodiment of this utility model, the sealing component 5 includes a slide rod 505 slidably and sealingly connected to the mounting base 4, and a third through hole 506 penetrating the slide rod 505. The slide rod 505 moves to drive the third through hole 506 and the liquid inlet channel 401 to be coaxial or the third through hole 506 and the adhesive inlet channel 402 to be coaxial. Preferably, the slide rod 505 in this embodiment can be driven by a cylinder. By moving the slide rod 505, the third through hole 506 is aligned with the liquid inlet channel 401 and is coaxial with the liquid inlet channel 401, allowing the cleaning agent to be introduced into the adhesive spraying base 1. At the same time, the slide rod 505 blocks the adhesive inlet channel 402. Alternatively, the third through hole 506 is aligned with the adhesive inlet channel 402 and is coaxial with the adhesive inlet channel 402, allowing PUR adhesive to be introduced into the adhesive spraying base 1. At the same time, the slide rod 505 blocks the liquid inlet channel 401, thereby realizing the conversion of cleaning agent and PUR adhesive entering the adhesive spraying base 1.
[0026] In an optional embodiment of this utility model, the sealing assembly 5 further includes a guide portion 507 for guiding the movement of the slide rod 505. The guide portion 507 includes a transverse block 5071 arranged along the length direction of the slide rod 505 and a guide groove 5072 formed in the mounting base 4 and cooperating with the transverse block 5071. By utilizing the sliding cooperation between the transverse block 5071 and the guide groove 5072, the movement of the slide rod 505 is guided, preventing the slide rod 505 from rotating when it moves, and ensuring that the third through hole 506 can be aligned with the liquid inlet channel 401 or the adhesive inlet channel 402, so as to realize the conversion of cleaning agent and PUR adhesive into the spray gun 1.
[0027] In an optional embodiment of this utility model, a second sealing ring 508 is provided on the slide bar 505. Preferably, in this embodiment, the number of second sealing rings 508 is set to two, distributed on both sides of the third through hole 506. By providing the second sealing ring 508, the cleaning agent in the liquid inlet channel 401 is prevented from entering the glue inlet channel 402 or the PUR glue in the glue inlet channel 402 is prevented from entering the liquid inlet channel 401, thereby improving the performance of the glue binding machine.
[0028] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
[0029] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the technical solution of this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this patent application.
[0030] Furthermore, 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 at least one of that feature. In the description of this patent application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0031] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.
[0032] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0034] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A PUR adhesive and cleaning agent spraying conversion mechanism, comprising a spraying base (1) and a nozzle (101) located on top of the spraying base (1), characterized in that: It also includes a liquid inlet (102) and an adhesive inlet (103) respectively disposed at the bottom of the glue spraying base (1) and communicating with the nozzle (101), a liquid inlet pipe (2) located below the liquid inlet (102), an adhesive inlet pipe (3) located below the adhesive inlet (103), a mounting base (4) connected to the glue spraying base (1) for installing the liquid inlet pipe (2) and the adhesive inlet pipe (3), a liquid inlet channel (401) penetrating the mounting base (4) for communicating the liquid inlet (102) and the liquid inlet pipe (2), an adhesive inlet channel (402) for communicating the adhesive inlet (103) and the adhesive inlet pipe (3), and a sealing assembly (5) for sealing the liquid inlet channel (401) or the adhesive inlet channel (402).
2. The PUR adhesive and cleaning agent spraying conversion mechanism according to claim 1, characterized in that: The sealing assembly (5) includes a rotating rod (501) rotatably and sealingly connected to the mounting base (4), a first through hole (502) and a second through hole (503) penetrating the rotating rod (501). The rotating rod (501) rotates to drive the first through hole (502) and the liquid inlet channel (401) to be coaxial or the second through hole (503) and the adhesive inlet channel (402) to be coaxial.
3. The PUR adhesive and cleaning agent spraying conversion mechanism according to claim 2, characterized in that: The rotating rod (501) is provided with a first sealing ring (504).
4. The PUR adhesive and cleaning agent spraying conversion mechanism according to claim 1, characterized in that: The sealing assembly (5) includes a slide rod (505) that is slidably and sealingly connected to the mounting base (4) and a third through hole (506) that passes through the slide rod (505). The slide rod (505) moves to drive the third through hole (506) and the liquid inlet channel (401) to be coaxial or the third through hole (506) and the adhesive inlet channel (402) to be coaxial.
5. The PUR adhesive and cleaning agent spraying conversion mechanism according to claim 4, characterized in that: The sealing assembly (5) further includes a guide portion (507) for guiding the movement of the slide bar (505), the guide portion (507) including a transverse block (5071) arranged along the length direction of the slide bar (505) and a guide groove (5072) formed in the mounting base (4) and cooperating with the transverse block (5071).
6. The PUR adhesive and cleaning agent spraying conversion mechanism according to claim 4, characterized in that: The slide bar (505) is provided with a second sealing ring (508).