End sealing equipment for preventing end cracks of solid wood floors

Abstract

The utility model relates to the technical field of end sealing equipment, in particular to end sealing equipment for preventing end cracks of solid wood floors, which comprises a clamping mechanism, an end sealing mechanism, a translation mechanism and a control system, and the clamping mechanism can support the solid wood floors and fix the positions of the solid wood floors; the end sealing mechanism comprises a rack as well as an end sealing belt, a circulating driving unit, a liquid supply unit and a recovery unit which are mounted through the rack; the end sealing belt sequentially comprises a closed upper parallel section, a downward section, a lower parallel section and an upward section, barrier strips are arranged on the surface of the end sealing belt at intervals, and the end sealing belt is driven by the circulation driving unit; the liquid supply unit is located above the end sealing belt and is suitable for applying end sealing paint to the upward parallel section; the recycling unit is positioned below the end sealing belt and is suitable for recycling the end sealing coating falling from the lower parallel section of the end sealing belt; the translation mechanism can drive the end sealing mechanism to move so that the descending section can make contact with or be away from the end of the solid wood floor.

Description

Technical Field

[0001] This application relates to the technical field of end-sealing equipment, specifically an end-sealing device for solid wood flooring. Background Technology

[0002] Solid wood flooring cannot be coated with thick paint on its two ends, making it prone to cracking and moisture absorption during use and storage. Therefore, solid wood flooring needs to be coated with a paint or coating to prevent moisture exchange and cracking.

[0003] In existing technologies, end sealing is a separate production process, or it is done together with edge banding. It involves spraying water-based paint or molten paraffin onto the ends of solid wood flooring to form a protective layer that prevents moisture exchange. The difficulty of end sealing lies in the fact that the ends of solid wood flooring have a tongue-and-groove structure rather than being flat.

[0004] For example, the utility model patent CN216025811U, entitled "A Waterproof Modified Paraffin End-Sealing Spraying Device for Flooring," discloses a spraying device comprising a base, a spraying box fixedly installed on the right side of the top of the base, a motor fixedly installed in the middle of the right side of the spraying box, a U-shaped plate fixedly connected to the output end of the motor, a rotating shaft fixedly installed on the left side of the U-shaped plate, and the left side of the rotating shaft movably connected to the left side of the inner cavity of the spraying box via a bearing. This utility model uses rotating bolts to move a clamping plate inward to fix the flooring, and the output end of the motor drives the U-shaped plate to rotate, which in turn drives the flooring to rotate via the clamping plate. Paint is drawn in through the input end of the paint pump via a suction pipe, and sprayed out through the output end of the paint pump via a supply pipe and a nozzle to spray the flooring. After spraying, pulling a pull plate to the right causes the left side of the pull plate to leave the inner cavity of the first slot, and a fan generates airflow to dry the flooring, improving work efficiency.

[0005] Existing end-capping coatings also have certain drawbacks. For example, water-based paints produce water-based films with weak water resistance, resulting in poor protection. Furthermore, they easily generate difficult-to-recover paint mist during spraying, leading to paint waste and environmental pollution. Paraffin coatings, on the other hand, have poor adhesion and are prone to peeling over time.

[0006] Ethylene-vinyl acetate copolymer (EVA) has the advantages of softness, transparency, chemical stability, etc., and is very suitable as a solid wood floor end sealing coating. Therefore, the prior art proposes the idea of using EVA coating as an end sealing coating. For example, the EVA spraying end sealing method disclosed in the invention patent application with the publication number CN105666628A and the name "Wood floor waterproof and formaldehyde-proof treatment process" pours EVA waterproof agent into a container and draws it to a nozzle through a high-pressure pump to spray it out, forms a negative pressure zone at the nozzle opening with a recovery pump to atomize the liquid, and draws the excess waterproof agent back into the container. The floor edge uniformly passes through the nozzle, the atomized waterproof agent is sprayed on the floor edge, the edge is solidified, and a waterproof and formaldehyde-proof protective layer is formed.

[0007] However, the above-mentioned atomized spraying method has the problems of coating waste and pollution of the production environment, and cannot fully exert the advantages of EVA coating. Utility model content

[0008] The present application provides a kind of end sealing equipment of solid wood floor anti end crack, it is EVA solution as end sealing coating, with online impregnation as end sealing means, to reach the technical effect of impregnating EVA solution on the end surface of solid wood floor and forming waterproof, anti end crack protective coating, especially, the protective coating formed by impregnation has good adhesion effect, and is not easy to fall off for a long time. At the same time, and the method can improve the utilization rate of EVA solution, avoid waste of coating, and the production environment is clean and safe. The present application specifically adopts the following technical scheme:

[0009] An end sealing equipment for preventing end cracking of solid wood floor, comprising a clamping mechanism, an end sealing mechanism, a translation mechanism and a control system, the clamping mechanism can support the solid wood floor and fix its position;

[0010] The end sealing mechanism comprises a rack and an end sealing belt, a circulating driving unit, a liquid supply unit and a recovery unit mounted through the rack;

[0011] The end sealing belt sequentially comprises a closed upper parallel section, a descending section, a lower parallel section and an ascending section, the surface of the end sealing belt has spaced-apart bars, and the end sealing belt is driven by the circulating driving unit;

[0012] The liquid supply unit is located above the end sealing belt and is suitable for applying end sealing coating to the upper parallel section; the recovery unit is located below the end sealing belt and is suitable for recovering the end sealing coating falling from the lower parallel section of the end sealing belt;

[0013] The translation mechanism can drive the end sealing mechanism to move so that the descending section contacts or moves away from the end of the solid wood floor.

[0014] As a preferred, the bars have an included angle of 90-92° with the feeding direction of the end sealing belt.

[0015] Preferably, the blocking strips are hollow strips.

[0016] Preferably, the end sealing device comprises a first end sealing mechanism and a second end sealing mechanism, the translation mechanism is capable of driving the first end sealing mechanism to move to make the first downward section contact or move away from the tenon end of the solid wood floor, and simultaneously driving the second end sealing mechanism to move to make the second downward section contact or move away from the mortise end of the solid wood floor.

[0017] Preferably, the distance between the blocking strips on the first end sealing mechanism matches the thickness of the tongue of the solid wood floor, and the width of the blocking strips on the second end sealing mechanism matches the height of the mortise of the solid wood floor.

[0018] Preferably, the distance between the blocking strips on the first end sealing mechanism is 0.6-1mm larger than the thickness of the tongue of the solid wood floor, and the width of the blocking strips on the second end sealing mechanism is 0.6-1mm smaller than the height of the mortise of the solid wood floor.

[0019] Preferably, the clamping mechanism comprises a support table, a fixed abutment, a movable abutment, a translation driving unit and a pressing unit, and the translation driving unit is capable of driving the movable abutment to move towards the fixed abutment to fix the lateral position of the solid wood floor, and the pressing unit is capable of cooperating with the support table to fix the longitudinal position of the solid wood floor.

[0020] Preferably, the support table is composed of the support surface of the self-adaptive lifting mechanism.

[0021] Preferably, the top of the movable abutment vertically extends towards the fixed abutment to form a base plate, and the pressing unit is installed through the base plate.

[0022] Preferably, the facade of the fixed abutment towards the movable abutment is provided with an anti-collision strip.

[0023] In summary, compared with the prior art, the end sealing device for preventing end cracking of the solid wood floor provided by the embodiments of the present application uses EVA solution as the end sealing coating and uses online impregnation as the end sealing means, so as to achieve the technical effect of impregnating EVA solution on the end face of the solid wood floor and forming a waterproof and end cracking resistant protective coating. In particular, the protective coating formed by impregnation has good adhesion effect and is not easy to fall off for a long time. At the same time, the method can improve the utilization rate of EVA solution and avoid waste of coating, and the production environment is clean and safe. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0025] Figure 1 A structural schematic diagram of the end sealing equipment for preventing end cracking of solid wood floor from one perspective is provided for Embodiment 1 of the present application.

[0026] Figure 2 A structural schematic diagram of the end sealing equipment for preventing end cracking of solid wood floor from another perspective is provided for Embodiment 1 of the present application.

[0027] Figure 3 A structural schematic diagram of the clamping mechanism is provided for Embodiment 1 of the present application.

[0028] Figure 4 A structural schematic diagram of the end sealing mechanism is provided for Embodiment 1 of the present application.

[0029] Figure 5 A sectional view of the end sealing mechanism is provided for Embodiment 1 of the present application.

[0030] Figure 6 A structural schematic diagram of the end sealing equipment for preventing end cracking of solid wood floor is provided for Embodiment 2 of the present application.

[0031] Figure 7 A front view of the end sealing equipment for preventing end cracking of solid wood floor is provided for Embodiment 2 of the present application.

[0032] Figure 8 A structural schematic diagram of the end sealing equipment for preventing end cracking of solid wood floor is provided for Embodiment 2 of the present application. Figure 7 A local enlarged view of position A in FIG. 7. DETAILED DESCRIPTION

[0033] In order to make the technical personnel in the art better understand the technical solutions in the present application, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort should belong to the scope of protection of the present application. EMBODIMENT

[0034] Referring to Figure 1 -- Figure 5The illustrated end-crack-preventing end-sealing device for solid wood floor comprises a clamping mechanism 200, an end-sealing mechanism 300, a translation mechanism 400 and a control system installed on a base platform, wherein the control system is any one of the prior art, such as a PLC control cabinet.

[0035] The clamping mechanism 200

[0036] The clamping mechanism 200 can support the solid wood floor 100 and fix its position. Specifically, the clamping mechanism 200 comprises a support table 210, a fixed backstop 220, a movable backstop 230, a translation driving unit 240 and a pressing unit 250.

[0037] The support table 210 can be a boss higher than the surface of the base platform, which is suitable for placing the solid wood floor 100. Preferably, the support table 210 has a length and a width smaller than those of the solid wood floor 100, for example, the length is 400 mm and the width is 80 mm, which can provide support for the solid wood floor 100 without affecting the clamping and limiting of the solid wood floor 100 by the fixed backstop 220 and the movable backstop 230.

[0038] The fixed backstop 220 and the movable backstop 230 are respectively located on the two sides of the support table 210 in the transverse direction. The fixed backstop 220 is a vertical plate screw-connected to the base platform, and the positional relationship between the fixed backstop 220 and the support table 210 is fixed, so as to limit the solid wood floor 100 from transversely moving in one direction. An anti-collision strip 221 is bonded or screw-connected to the vertical surface of the fixed backstop 220 facing the movable backstop 230. The anti-collision strip 221 is a rubber piece, and a plurality of anti-collision strips 221 are arranged in the longitudinal direction.

[0039] The movable backstop 230 is arranged on the opposite side and movably installed on the base platform by the translation driving unit 240. In this embodiment, the movable backstop 230 is a vertical plate, and the bottom of the movable backstop 230 has a T-shaped sliding block, and the surface of the base platform is provided with a T-shaped sliding groove matched with the T-shaped sliding block. The translation driving unit 240 comprises a gas cylinder (not shown in the figure) screw-connected to the base platform through a gas cylinder seat, and the gas cylinder is electrically connected with the control system, and the extension end of the gas cylinder is hinged to the back surface of the movable backstop 230. In other embodiments, the translation driving unit 240 is a lead screw servo mechanism, which is electrically connected with the control system. Thus, the translation driving unit 240 can drive the movable backstop 230 to move towards the fixed backstop 220 to fix the transverse position of the solid wood floor 100. The former scheme has relatively low modification and maintenance cost, and the control stability of the latter scheme is higher. Preferably, a contact sensor electrically connected with the translation driving unit 240 and the control system is installed on the front surface of the movable backstop 230 to automatically control the stop of the translation driving unit 240.

[0040] The top surface of the movable side 230 extends vertically to form a base plate 231 towards the fixed side 220. The pressing unit 250 includes a pressing cylinder 252 mounted on the base plate 231 by screwing, and a pressing plate 253 mounted on the extending end of the pressing cylinder 252 by screwing. The pressing cylinder 252 is electrically connected to the control system. Preferably, the pressing plate 253 is made of rubber, and has a length and a width smaller than those of the wooden floor 100, for example, the length is 100 mm and the width is 60 mm. The pressing plate 253 can provide a pressing force from above the wooden floor 100 to cooperate with the support surface 210 to fix the longitudinal position of the wooden floor 100, without affecting the clamping and limiting of the wooden floor 100 by the fixed side 220 and the movable side 230.

[0041] As a preferred embodiment, the support surface 210 is formed by a self-adaptive lifting mechanism. For example, the support surface 210 is a scissor lifting platform. When the wooden floor 100 is not placed, the support surface 210 is at the highest position. As the operator places the wooden floor 100 one by one, the height of the support surface 210 is automatically lowered.

[0042] After the loading of the wooden floor 100 is completed, the translation driving unit 240 makes the movable side 230 abut against the other side of the wooden floor 100. Then, the pressing cylinder 252 extends, and the pressing plate 253 contacts the surface of the uppermost wooden floor 100. The pressing cylinder 252 continues to extend, so that the height of the support surface 210 is further lowered until the pressing cylinder 252 is extended to the position. In other words, the height from the surface of the uppermost wooden floor 100 to the surface of the base platform is controlled based on the pressing surface of the pressing plate 253.

[0043] The sealing mechanism 300

[0044] The sealing mechanism 300 includes a rack 310, a sealing belt 320, a circulation driving unit 330, a liquid supply unit 340, and a recovery unit 350 installed on the rack 310.

[0045] Specifically, the rack 310 includes a pair of side walls 311 and a top wall 312 connected to the pair of side walls 311. The circulation driving unit 330 includes a group of (four) roller shafts installed on the pair of side walls 311 by bearings, belt rollers installed on the roller shafts, and a driving motor in driving connection with one of the roller shafts. The driving motor is electrically connected to the control system.

[0046] The end-sealing belt 320 is tightly sleeved on a set of belt rollers, sequentially comprising a closed upper parallel section 321, a descending section 322, a lower parallel section 323 and an ascending section 324, and is capable of circulating operation under the driving of the circulating driving unit 330. The circulating driving unit 330 is started and stopped by manual control. The surface of the end-sealing belt 320 is provided with spaced-apart blocking strips 325. In the embodiment, the axial direction of the blocking strips 325 is perpendicular to the feeding direction of the end-sealing belt 320. In other embodiments, the blocking strips 325 have an angle of 90-92° with the feeding direction of the end-sealing belt 320, i.e. the axial direction of the blocking strips 325 is slightly inclined relative to the feeding direction of the end-sealing belt 320.

[0047] As a preferred embodiment, the blocking strips 325 are hollow strips.

[0048] During assembly, the end-sealing mechanism 300 is located at one side of the end of the solid wood floor 100, and the descending section 322 of the end-sealing belt 320 is directed towards the end of the tenon of the solid wood floor 100.

[0049] The liquid supply unit 340 is located above the end-sealing belt 320, comprising a shower pipe 341 which is screw-connected to the inner wall surface of the top wall 312, a plurality of shower heads 342 which are arranged on the shower pipe 341, a main pipe 343 which is in communication with the shower pipe 341, a liquid storage tank which is in communication with the main pipe 343, and valves and pumps. The liquid storage tank is arranged outside the rack 310, and the valves and pumps are all components of the prior art and are electrically connected to the control system. With the operation of the end-sealing belt 320, the liquid supply unit 340 can spray the end-sealing paint (EVA solution) on the end-sealing belt 320 and accumulate it between adjacent blocking strips 325.

[0050] The recovery unit 350 at least comprises a recovery tank which is located below the rack 310 and is connected to the pair of side walls 311 below, and is suitable for recovering the end-sealing paint which falls from the lower parallel section 323 of the end-sealing belt 320. The end-sealing paint in the recovery tank can also be introduced back into the liquid storage tank by means of the prior art.

[0051] The translation mechanism 400 can drive the end-sealing mechanism 300 to move so that the descending section 322 contacts or moves away from the end of the solid wood floor 100. In the embodiment, the bottom of the recovery tank has a T-shaped sliding block, the surface of the base platform is provided with a T-shaped sliding groove which cooperates with the T-shaped sliding block, and the translation mechanism 400 comprises a pneumatic cylinder which is screw-connected to the base platform (not shown in the figure), the pneumatic cylinder is electrically connected to the control system, and the extension end of the pneumatic cylinder is hingedly connected to the back surface of the recovery tank. In other embodiments, the translation mechanism 400 is a lead screw servo mechanism which is electrically connected to the control system. Regardless of the scheme, the translation mechanism 400 is started and stopped by manual control.

[0052] In operation, after the end-sealing mechanism 300 is positioned, the stopper 325 is manually aligned with the male end of the adjacent parquet 100, and then the stopper 325 is manually inserted into the male end of the adjacent parquet 100. The end-sealing material accumulated between the adjacent stoppers 325 is then attached to the male end of the parquet 100 in a short-time immersion manner. Embodiment

[0053] Reference Figure 6 -- Figure 8 As shown, the embodiment 2 differs from the embodiment 1 in that the end-sealing device includes a pair of first end-sealing mechanism 300a for end-sealing the male end of the parquet 100 and a second end-sealing mechanism 300b for end-sealing the female end of the parquet 100. The translation mechanism 400 also includes a pair of first translation mechanism 400a for driving the first end-sealing mechanism 300a to move so that the first downward section 322a contacts or is away from the male end of the parquet 100 and a second translation mechanism 400b for driving the second end-sealing mechanism 300b to move so that the second downward section 322b contacts or is away from the female end of the parquet 100.

[0054] To this end, the spacing between the stoppers 325 on the first end-sealing mechanism 300a is matched with the thickness of the tongue of the parquet 100, and the width of the stoppers 325 on the second end-sealing mechanism 300b is matched with the height of the groove of the parquet 100. In other words, the spacing between the stoppers 325 on the first end-sealing mechanism 300a should be able to allow the tongue of the parquet 100 to enter, with a clearance fit of 0.6-1 mm, i.e. the spacing between the stoppers 325 on the first end-sealing mechanism 300a is 0.6-1 mm larger than the thickness of the tongue of the parquet 100, or the width of the stoppers 325 on the second end-sealing mechanism 300b is 0.6-1 mm smaller than the height of the groove of the parquet 100; the width of the stoppers 325 on the second end-sealing mechanism 300b should be able to enter the groove of the parquet 100, with a clearance fit of 0.6-1 mm. Of course, in general, the specifications of the parquet 100 are fixed, so when the stopper 325 is a hole core, it can adapt to the general parquet 100.

[0055] The foregoing description is provided for purposes of illustration and is not intended to limit the application as claimed. Numerous implementations and many embodiments other than those described herein will be apparent to those skilled in the art in view of the foregoing description. Accordingly, the scope of the application should not be determined with reference to the foregoing description, but instead should be determined with reference to the appended claims along with their full scope of equivalents. For purposes of completeness, all articles and references, including publications, patents, and presentations, are incorporated herein by reference for the teachings and aspects described. No aspect of the subject matter disclosed in this application is a disclaimer of, or dedicated to the public, any feature or aspect of the subject matter.

Claims

1. An end sealing device for preventing end checking of a solid wood floor, characterized in that The device comprises a clamping mechanism (200), an end sealing mechanism (300), a translation mechanism (400) and a control system, the clamping mechanism (200) can support and fix the position of solid wood floor (100); The end sealing mechanism (300) comprises a rack (310) and an end sealing belt (320), a circulating driving unit (330), a liquid supply unit (340) and a recovery unit (350) installed through the rack (310); The end sealing belt (320) comprises a closed upper parallel section (321), a descending section (322), a lower parallel section (323) and an ascending section (324) in sequence, the surface of the end sealing belt (320) is provided with spaced blocking strips (325), and the end sealing belt (320) is driven by the circulating driving unit (330); The liquid supply unit (340) is located above the end sealing belt (320) and is suitable for applying end sealing paint on the upper parallel section (321); and the recovery unit (350) is located below the end sealing belt (320) and is suitable for recovering the end sealing paint falling from the lower parallel section (323) of the end sealing belt (320). The translation mechanism (400) can drive the end sealing mechanism (300) to move so that the descending section (322) contacts or is away from the end of the solid wood floor (100).

2. The end sealing device for preventing end cracking of solid wood floor according to claim 1, wherein, The blocking strips (325) and the feeding direction of the end sealing belt (320) form an included angle of 90-92°.

3. The end sealing device for preventing end cracking of solid wood flooring according to claim 1, wherein, The blocking strips (325) are hollow strips.

4. The end sealing apparatus for preventing end cracking of a solid wood floor according to claim 1, wherein The end sealing device comprises a first end sealing mechanism (300a) and a second end sealing mechanism (300b), the translation mechanism (400) can drive the first end sealing mechanism (300a) to move so that the first descending section (322a) contacts or is away from the tenon end of the solid wood floor (100), and simultaneously drive the second end sealing mechanism (300b) to move so that the second descending section (322b) contacts or is away from the mortise end of the solid wood floor (100).

5. The end sealing device for preventing end cracking of solid wood floorboards according to claim 4, characterized in that, The spacing between the blocking strips (325) on the first end sealing mechanism (300a) matches the thickness of the tongue of the solid wood floor (100), and the width of the blocking strips (325) on the second end sealing mechanism (300b) matches the height of the groove of the solid wood floor (100).

6. The end sealing apparatus for preventing end cracking of solid wood flooring according to claim 5, wherein, The spacing between the blocking strips (325) on the first end sealing mechanism (300a) is 0.6-1mm larger than the thickness of the tongue of the solid wood floor (100), and the width of the blocking strips (325) on the second end sealing mechanism (300b) is 0.6-1mm smaller than the height of the groove of the solid wood floor (100).

7. The end sealing apparatus for preventing end checking of a solid wood floor according to claim 1, wherein The clamping mechanism (200) comprises a support table (210), a fixed backstop (220), a movable backstop (230), a translation driving unit (240) and a pressing unit (250), the length direction of the solid wood floor (100) is the axial direction, the translation driving unit (240) can drive the movable backstop (230) to move towards the fixed backstop (220) to fix the transverse position of the solid wood floor (100), and the pressing unit (250) can cooperate with the support table (210) to fix the longitudinal position of the solid wood floor (100).

8. The end sealing apparatus for preventing end checking of a solid wood floor according to claim 7, wherein The support table (210) is composed of a support surface of a self-adaptive lifting mechanism.

9. The end sealing apparatus for preventing end checking of a solid wood floor according to claim 7, wherein, The top of the movable backstop (230) vertically extends towards the fixed backstop (220) to form a base plate (231), and the pressing unit (250) is installed through the base plate (231).

10. The end sealing apparatus for preventing end checking of a solid wood floor according to claim 7, wherein, A collision strip (221) is arranged on the facade of the fixed backstop (220) towards the movable backstop (230).

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