A drying device for adhesive used in plywood production

Abstract

The application discloses a kind of plywood production with bonding glue drying device, including sinking outer frame, hot airflow guide pipeline, heat accumulation drying plate and transverse stripping assembly, the inside of sinking outer frame is formed with processing inner cavity, four groups of guide grooves are evenly provided on the inner wall of processing inner cavity, hot airflow guide pipeline is installed to the outside of sinking outer frame and includes air blower, annular guide pipe and electric heating rod, air blower is installed at the corner of sinking outer frame and the gas outlet is connected with annular guide pipe by pipeline, annular guide pipe is laid in the periphery of sinking outer frame, electric heating rod is separately provided with four groups, and adjacent two groups of electric heating rods are connected and arranged in annular guide pipe, heat accumulation drying plate is provided with several groups and is evenly installed on the inner wall of processing inner cavity.The bonding glue drying device for plywood designed in the application can realize the automatic drying and stripping treatment of the overflow bonding glue generated during the extrusion process of plywood, improve the yield of finished plywood.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of plywood production equipment, in particular to a bonding glue drying device for plywood production. BACKGROUND

[0002] Plywood is a kind of board material formed by gluing multiple thin wood sheets or wood fiber boards. Its definition is to bond wood or wood fiber together through a specific gluing process to form a composite material. Plywood is widely used in construction and manufacturing due to its multi-layer structure and the advantages of the gluing process. It has good strength, stability and customizability, and is widely used in fields such as flooring, wall panels, furniture, doors and windows, packaging boxes, templates and engineering construction. Plywood is usually composed of multiple boards and is formed by hot pressing or cold pressing. In order to ensure the tightness of the plywood, adhesive is usually injected between the boards to improve the overall integrity of the boards.

[0003] However, the existing plywood has the following problems in the process of extrusion: during the extrusion process, the board body will be subjected to a large pressure, and part of the adhesive in the interlayer will be extruded out of the interlayer. If the glue is not cleaned in time, the glue will flow along the edge of the plywood and contaminate the processing equipment, affecting the normal use of the processing equipment. There is a lack of means for quickly drying and peeling the overflowed glue, which affects the yield of the finished product. Therefore, it is necessary to design a corresponding technical solution to solve the existing technical problems. SUMMARY

[0004] The purpose of the present application is to provide a bonding glue drying device for plywood production, which solves the technical problem that the board body will be subjected to a large pressure during the extrusion process, and part of the adhesive in the interlayer will be extruded out of the interlayer. If the glue is not cleaned in time, the glue will flow along the edge of the plywood and contaminate the processing equipment, affecting the normal use of the processing equipment. There is a lack of means for quickly drying and peeling the overflowed glue, which affects the yield of the finished product.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a drying device for adhesive used in plywood production, comprising a recessed outer frame, a hot airflow guiding pipe, a heat-accumulating drying plate, and a transverse peeling assembly. The recessed outer frame has a processing cavity formed inside, and four sets of guide grooves are evenly distributed on the inner wall of the processing cavity. The hot airflow guiding pipe is installed on the outside of the recessed outer frame and includes a blower, an annular guiding pipe, and electric heating rods. The blower is installed at a corner of the recessed outer frame, and its outlet is connected to the annular guiding pipe via a pipe. The annular guiding pipe is laid around the periphery of the recessed outer frame. The electric heating rods are arranged in four groups, with adjacent groups of electric heating rods connected end-to-end. The heat-accumulating drying plates are arranged in several groups and evenly installed on the inner wall of the processing cavity. The two adjacent groups of heat-accumulating drying plates are located above and below the guide groove, respectively. The transverse peeling assembly includes a drive motor, a screw, a slider, and a peeling guide. The power output end of the drive motor is connected to the screw. The screw is built into the guide groove. The slider is threaded through the screw and its outer end is connected to the peeling guide. The peeling guide includes a mounting plate, a peeling blade, and a longitudinal sewage discharge assembly. The mounting plate is fixed on the slider and has a storage groove on its back. The peeling blade is installed on the slider, and the longitudinal sewage discharge assembly is built into the storage groove.

[0006] In a preferred embodiment of the present invention, the size of the processing cavity inside the recessed outer frame is larger than the size of the plywood to be processed, and the depth of the processing cavity is greater than the thickness of the plywood after extrusion.

[0007] In a preferred embodiment of the present invention, the heat-accumulating drying plate includes a connecting pipe and several sets of arc-shaped heat-accumulating plates uniformly installed on the connecting pipe. The several sets of arc-shaped heat-accumulating plates are longitudinally distributed, and adjacent sets of arc-shaped heat-accumulating plates are equidistantly distributed.

[0008] In a preferred embodiment of the present invention, the arc-shaped heat-accumulating plate has an arc-shaped structure and a plurality of exhaust holes are uniformly opened on the inner wall, and the arc-shaped heat-accumulating plate is made of copper.

[0009] In a preferred embodiment of the present invention, the mounting plate has a three-section structure and is provided with a top plate, a vertical plate and a bottom plate from top to bottom. The top plate has a dirt collection cavity formed inside. The storage groove is opened on the vertical plate. Several sets of inlet ports are evenly opened on one side of the storage groove. The bottom plate has an embedded groove.

[0010] In a preferred embodiment of the present invention, the stripping blade includes a blade body, a baffle, and a blocking plate. The blade body is mounted on the edge of the mounting plate, and the baffle is located on one side of the blade body and connected to the bottom of the blade body via the blocking plate.

[0011] In a preferred embodiment of the present invention, the longitudinal sewage discharge assembly includes a motor, a feeding rod, and an external discharge pipe. The motor is installed in an embedded groove and its power output end is connected to the feeding rod. The feeding rod is built into the sewage collection chamber, and the external discharge pipe is installed on one side of the sewage collection chamber.

[0012] In a preferred embodiment of the present invention, the feeding rod includes a rod body and several sets of spiral blades mounted on the surface of the rod body, with adjacent sets of spiral blades connected end to end.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. This invention designs a device for drying and peeling plywood adhesive. The plywood adhesive drying device includes a recessed outer frame, a hot air flow guiding pipe, a heat-accumulating drying plate, and a transverse peeling component. When plywood needs to be extruded, the plywood can be placed inside the recessed outer frame. During the pressing process, the hot air flow guiding pipe delivers hot air to the heat-accumulating drying plate. The adhesive overflowing from the plywood is cured by several sets of heat-accumulating drying plates set on the recessed outer frame. After curing, the cured adhesive is peeled off by the peeling blade on the transverse peeling component and collected and guided outward.

[0015] 2. The plywood adhesive drying device designed in this invention can automatically dry and peel off the overflow adhesive generated during the plywood extrusion process, thereby improving the yield of finished plywood. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the present invention;

[0017] Figure 2 This is a structural diagram of the hot airflow guiding pipeline described in this invention;

[0018] Figure 3 This is a structural diagram of the heat-accumulating drying plate described in this invention;

[0019] Figure 4 This is a front view of the stripping outer guide described in this invention;

[0020] Figure 5 This is a back view of the stripper described in this invention.

[0021] In the diagram: 1. Recessed outer frame; 2. Machining inner cavity; 3. Guide groove; 4. Blower; 5. Annular drain pipe; 6. Electric heating rod; 7. Drive motor; 8. Screw; 9. Slider; 10. Peeling guide; 11. Mounting plate; 12. Peeling blade; 13. Longitudinal sewage discharge assembly; 14. Collection groove; 15. Connecting pipe; 17. Arc-shaped heat accumulation plate; 18. Exhaust port; 19. Top plate; 20. Vertical plate; 21. Bottom plate; 22. Sewage collection chamber; 23. Inlet; 24. Embedded groove; 25. Blade body; 26. Baffle; 27. Blocking plate; 28. Motor; 29. ​​Feeding rod; 30. External discharge pipe; 31. Rod body; 32. Spiral blade. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-5 This invention provides a technical solution: a drying device for adhesive used in plywood production, comprising a recessed outer frame 1, a hot airflow guiding pipe, a heat-accumulating drying plate, and a transverse peeling assembly. The recessed outer frame 1 has a processing cavity 2 formed inside, and four sets of guide grooves 3 are evenly distributed on the inner wall of the processing cavity 2. The hot airflow guiding pipe is installed on the outside of the recessed outer frame 1 and includes a blower 4, an annular guiding pipe 5, and electric heating rods 6. The blower 4 is installed at the corner of the recessed outer frame 1, and its outlet is connected to the annular guiding pipe 5 via a pipe. The annular guiding pipe 5 is laid around the periphery of the recessed outer frame 1. The electric heating rods 6 are divided into four sets, with adjacent sets of electric heating rods 6 connected end-to-end and disposed on the annular guiding pipe. Inside the cavity 5, several sets of heat-accumulating drying plates are evenly installed on the inner wall of the processing cavity 2. Two adjacent sets of heat-accumulating drying plates are located above and below the guide groove 3, respectively. The transverse peeling assembly includes a drive motor 7, a screw 8, a slider 9, and a peeling guide 10. The power output end of the drive motor 7 is connected to the screw 8. The screw 8 is built into the guide groove 3. The slider 9 is threaded through the screw 8 and its outer end is connected to the peeling guide 10. The peeling guide 10 includes a mounting plate 11, a peeling blade 12, and a longitudinal sewage discharge assembly 13. The mounting plate 11 is fixed on the slider 9 and has a storage groove 14 on its back. The peeling blade 12 is installed on the slider 9, and the longitudinal sewage discharge assembly 13 is built into the storage groove 14.

[0024] Further improvements, such as Figure 1As shown: The size of the processing cavity 2 inside the recessed outer frame 1 is larger than the size of the plywood to be processed, and the depth of the processing cavity 2 is greater than the thickness of the plywood after extrusion. The plywood to be extruded is placed inside the recessed outer frame 1 for extrusion processing.

[0025] Further improvements, such as Figure 3 As shown: The heat-accumulating drying plate includes a connecting pipe 15 and several sets of arc-shaped heat-accumulating plates 17 evenly installed on the connecting pipe 15. The several sets of arc-shaped heat-accumulating plates 17 are distributed longitudinally, and adjacent sets of arc-shaped heat-accumulating plates 17 are equidistantly distributed. This design facilitates the heat accumulation through the arc-shaped heat-accumulating plates 17 and the rapid drying of the glue overflowing from the plywood.

[0026] Further improvements, such as Figure 3 As shown: The arc-shaped heat accumulation plate 17 has an arc-shaped structure and several sets of exhaust holes 18 are evenly opened on the inner wall. The arc-shaped heat accumulation plate 17 is made of copper material and has the function of heat accumulation, which improves the drying effect.

[0027] Further improvements, such as Figure 4 As shown: The mounting plate 11 has a three-section structure and is provided with a top plate 19, a vertical plate 20 and a bottom plate 21 from top to bottom. The top plate 19 has a sludge collection chamber 22 formed inside. The collection groove 14 is opened on the vertical plate 20. Several sets of inlet ports 23 are evenly opened on one side of the collection groove 14. The bottom plate 21 has an embedded groove 24 for the external discharge treatment of the dried colloid.

[0028] Further improvements, such as Figure 5 As shown: The peeling blade 12 includes a blade body 25, a baffle 26 and a blocking plate 27. The blade body 25 is installed on the edge of the mounting plate 11. The baffle 26 is located on one side of the blade body 25 and is connected to the bottom of the blade body 25 through the blocking plate 27. The blade body 25 peels off the dried adhesive on the edge of the plywood and the baffle 26 and the blocking plate 27 concentrate the dried adhesive.

[0029] Further improvements, such as Figure 4 As shown: The longitudinal sewage discharge assembly 13 includes a motor 28, a feeding rod 29, and an external discharge pipe 30. The motor 28 is installed in the embedded groove 24 and its power output end is connected to the feeding rod 29. The feeding rod 29 is built into the receiving groove 14. The external discharge pipe 30 is installed on one side of the sewage collection chamber 22. The motor 28 drives the feeding rod 29 to rotate. During the rotation, the feeding rod 29 longitudinally lifts the collected dried colloid and discharges it through the external discharge pipe 30.

[0030] Specifically, the feeding rod 29 includes a rod body 31 and several sets of spiral blades 32 installed on the surface of the rod body 31. Two adjacent sets of spiral blades 32 are connected end to end. The collected dried colloid is longitudinally lifted and discharged by the spiral blades 32 through the rotation of the rod body 31.

[0031] In use: When plywood needs to be pressed and molded, the plywood raw materials can be evenly stacked in the recessed outer frame 1 and adhesive can be injected between the boards. During the extrusion molding process, some adhesive will be squeezed out from the interlayer. At this time, the blower 4 will introduce airflow into the annular drainage pipe 5. The airflow will be heated by the internal electric heating rod 6 and delivered to the connecting pipe 15 of the heat-accumulating drying plate. The hot airflow will be delivered to the arc-shaped heat-accumulating plate 17 through the connecting pipe 15. The hot airflow will be discharged through the exhaust hole 18 on the arc-shaped plate 17 and the adhesive on the edge of the plywood will be dried. After drying and curing, the screw 8 is driven by the drive motor 7 to rotate. During the rotation, the screw 17 drives the slider 9 to move laterally along the guide groove 3. The adhesive on the edge of the plywood is peeled off by the peeling guide 10. The dried adhesive on the edge of the plywood is peeled off by the blade body 25. The dried adhesive is collected by the baffle 26 and the blocking plate 27 and enters the collection tank 14 from the inlet 23. The feeding rod 29 is driven by the motor 28 to rotate. During the rotation, the feeding rod 29 lifts the collected dried adhesive longitudinally and discharges it through the discharge pipe 30.

[0032] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limiting this invention.

[0033] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drying apparatus for adhesive used in plywood production, characterized by: Including sinking outer frame (1), hot airflow guide pipeline, heat accumulation drying plate and transverse stripping assembly, the inside of sinking outer frame (1) is formed with processing inner cavity (2), the inner wall of processing inner cavity (2) is evenly provided with four groups of guide grooves (3), hot airflow guide pipeline is installed to the outside of sinking outer frame (1) and includes air blower (4), annular drainage pipe (5) and electric heating rod (6), air blower (4) is installed to the corner of sinking outer frame (1) and the air outlet end is connected with annular drainage pipe (5) through pipeline, annular drainage pipe (5) is laid on the periphery of sinking outer frame (1), electric heating rod (6) is divided into four groups, and the tail of adjacent two groups of electric heating rod (6) is connected and is arranged in annular drainage pipe (5), heat accumulation drying plate is provided with several groups and is evenly installed on the inner wall of processing inner cavity (2), and the upper and lower adjacent two groups of heat accumulation drying plate are located above and below guide groove (3) respectively, transverse stripping assembly includes drive motor (7), screw rod (8), sliding block (9) and stripping outer guide (10), the power output end of drive motor (7) is connected with screw rod (8), screw rod (8) is built into guide groove (3), sliding block (9) is threaded on screw rod (8) and the outer end is connected with stripping outer guide (10), stripping outer guide (10) includes mounting plate (11), stripping blade (12) and longitudinal drainage assembly (13), mounting plate (11) is fixed on sliding block (9) and the back is provided with receiving groove (14), stripping blade (12) is installed on sliding block (9), longitudinal drainage assembly (13) is placed in receiving groove (14), mounting plate (11) is three-section structure and is provided with top plate (19), vertical plate (20) and bottom plate (21) from top to bottom, the inside of top plate (19) is formed with pollution collection cavity (22), receiving groove (14) is formed on vertical plate (20), a plurality of inlet ports (23) are evenly formed on one side of receiving groove (14), bottom plate (21) is provided with embedded groove (24), stripping blade (12) includes blade body (25), baffle (26) and baffle plate (27), blade body (25) is installed on the edge of mounting plate (11), baffle (26) is located on one side of blade body (25) and is connected with blade body (25) through baffle plate (27) between the bottom, longitudinal drainage assembly (13) includes motor (28), feeding rod (29) and outer discharge pipe (30), motor (28) is installed in receiving groove (14) and the power output end is connected with feeding rod (29), feeding rod (29) is built into pollution collection cavity (22), outer discharge pipe (30) is installed on one side of pollution collection cavity (22), feeding rod (29) includes rod body (31) and a plurality of helical blades (32) installed on the surface of rod body (31), adjacent two groups of helical blades (32) are connected in head and tail.

2. The adhesive drying device for plywood production according to claim 1, characterized in that: The processing inner cavity (2) inside the sinking outer frame (1) has a size larger than that of the plywood to be processed, and the depth of the processing inner cavity (2) is larger than the thickness of the plywood after extrusion.

3. The adhesive drying device for plywood production according to claim 1, characterized in that: The heat accumulation drying plate comprises connecting pipes (15) and a plurality of groups of arc-shaped heat accumulation plates (17) uniformly arranged on the connecting pipes (15), the plurality of groups of arc-shaped heat accumulation plates (17) are longitudinally distributed, and adjacent two groups of arc-shaped heat accumulation plates (17) are equidistantly distributed.

4. The adhesive drying device for plywood production according to claim 3, characterized in that: The arc-shaped heat accumulation plates (17) are in an arc-shaped structure and are uniformly provided with a plurality of groups of exhaust holes (18) on inner walls, and the arc-shaped heat accumulation plates (17) are made of copper.

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